阅读说明：本技术 新鲜矿泉水软桶吹瓶装置以及吹瓶工艺 (Bottle blowing device and bottle blowing process for fresh mineral water soft barrel ) 是由 吴深坚 于 2021-08-25 设计创作，主要内容包括：本发明提供了一种新鲜矿泉水软桶吹瓶装置以及吹瓶工艺。所述吹瓶装置包括输送装置、加热装置以及吹瓶机构。加热装置包括沿瓶胚的延伸方向排列设置的多组热源。加热装置包括设置在瓶胚侧面的加热区域以及设置在瓶胚底部侧面的保温区域。加热装置的保温区域包括第一热源和第二热源。第一热源靠近瓶胚底部侧面设置。第二热源远离瓶胚底部侧面设置。在瓶胚的加热过程中,加热区域的热源工作以对瓶胚进行加热处理。保温区域的第一热源的加热功率比率小于第二热源的加热功率比率,以对瓶胚底部及胚身进行保温处理。通过在瓶胚的底部设置保温区域,并使靠近瓶胚底部侧面设置的第一热源的加热功率比率小于远离瓶胚底部侧面设置的第二热源的加热功率比率,所制成的软桶的不易发白且可压缩性能较好。(The invention provides a bottle blowing device for a fresh mineral water soft barrel and a bottle blowing process. The bottle blowing device comprises a conveying device, a heating device and a bottle blowing mechanism. The heating device comprises a plurality of groups of heat sources which are arranged along the extending direction of the bottle blank. The heating device comprises a heating area arranged on the side surface of the bottle blank and a heat preservation area arranged on the side surface of the bottom of the bottle blank. The hold-warm region of the heating device includes a first heat source and a second heat source. The first heat source is arranged close to the side surface of the bottom of the bottle blank. The second heat source is far away from the side surface of the bottom of the bottle blank. In the heating process of the bottle blank, the heat source of the heating area works to heat the bottle blank. The heating power ratio of the first heat source in the heat preservation area is smaller than that of the second heat source so as to carry out heat preservation treatment on the bottom and the body of the bottle blank. The heat-insulating area is arranged at the bottom of the bottle blank, and the heating power ratio of the first heat source close to the side face of the bottom of the bottle blank is smaller than that of the second heat source far away from the side face of the bottom of the bottle blank, so that the manufactured soft barrel is not easy to whiten and has better compressibility.)

1. The utility model provides a bottle blowing device of fresh mineral water soft barrel which characterized in that includes:

the conveying device is provided with a bottle blank seat, and the bottle blank seat is used for fixing a bottle blank;

the heating device is used for heating the bottle blanks on the conveying device; and

the bottle blowing mechanism is used for carrying out bottle blowing treatment on the heated bottle blank;

the heating device comprises a plurality of groups of heat sources, the heat sources are arranged along the extension direction of the bottle blank, the heating device comprises a heating area arranged on the side surface of the bottle blank and a heat preservation area arranged at the bottom of the bottle blank, the heat preservation area of the heating device comprises a first heat source and a second heat source, the first heat source is arranged close to the side surface of the bottom of the bottle blank, the second heat source is arranged far away from the side surface of the bottom of the bottle blank, in the heating process of the bottle blank, the heat source of the heating area of the heating device works to heat the bottle blank, and the heating power ratio of the first heat source in the heat preservation area of the heating device is smaller than that of the second heat source so as to perform heat preservation treatment on the bottom of the bottle blank and the blank body.

2. The bottle blowing device for fresh mineral water soft barrels as claimed in claim 1, further comprising:

the preheating device is used for preheating bottle blanks on the conveying device, the preheating device and the heating device are arranged along the conveying direction of the conveying device, the preheating device is arranged at the front end of the conveying device, the heating device is arranged at the rear end of the conveying device, and the bottle blanks on the conveying device are conveyed to the bottle blowing mechanism for bottle blowing processing after passing through the preheating device and the heating device.

3. The blowing device of a fresh mineral water soft barrel according to claim 2, wherein the preheating device comprises a plurality of groups of heat sources, the plurality of groups of heat sources are arranged along the extending direction of the bottle blank, the preheating device comprises a heating area arranged on the side surface of the bottle blank and a heat preservation area arranged on the bottom of the bottle blank, the heat preservation area of the preheating device comprises a third heat source and a fourth heat source, the third heat source is arranged close to the side surface of the bottom of the bottle blank, the fourth heat source is arranged far away from the side surface of the bottom of the bottle blank, the heat source of the heating area of the preheating device works to heat the bottle blank during the preheating process of the bottle blank, the third heat source does not work, and the fourth heat source works to preserve heat the bottom of the bottle blank and the blank body.

4. The blowing device of a fresh mineral water soft barrel as claimed in claim 2, wherein the heating region of the heating device includes a fifth heat source, a sixth heat source, a seventh heat source and an eighth heat source, the fifth heat source is disposed corresponding to the shoulder region of the bottle blank, the sixth heat source is disposed corresponding to the upper region of the body of the bottle blank, the seventh heat source is disposed corresponding to the middle and lower region of the body of the bottle blank, the eighth heat source is disposed corresponding to the bottom region of the bottle blank, and during the heating process of the bottle blank:

the heating power ratio of the fifth heat source is greater than the heating power ratio of the sixth heat source, the seventh heat source or the eighth heat source;

and/or the heating power ratio of the eighth heat source is greater than or equal to the heating power ratio of the seventh heat source.

5. The blowing device of a fresh mineral water soft barrel as claimed in claim 4, wherein the heating region of the preheating device includes a ninth heat source, a tenth heat source, an eleventh heat source and a twelfth heat source, the ninth heat source is disposed corresponding to the shoulder region of the bottle blank, the tenth heat source is disposed corresponding to the upper region of the body of the bottle blank, the eleventh heat source is disposed corresponding to the middle and lower region of the body of the bottle blank, the twelfth heat source is disposed corresponding to the bottom region of the bottle blank, and during the preheating process of the bottle blank:

the heating power ratio of the ninth heat source is smaller than the heating power ratio of the tenth heat source or the twelfth heat source.

6. The bottle blowing device of fresh mineral water soft barrel as claimed in claim 5, wherein,

the heating power ratio of the ninth heat source is smaller than that of the fifth heat source;

and/or the heating power ratio of the fourth heat source is the same as or similar to the heating power ratio of the second heat source.

7. The bottle blowing device of fresh mineral water soft barrel as claimed in any one of claims 1-6, further comprising an air supply device disposed on the opposite side of the bottle embryo from the heating device, wherein the air outlet of the air supply device is disposed facing the bottle embryo, and a heating channel for passing the bottle embryo disposed on the conveying device is formed between the air supply device and the heating device.

8. A bottle blowing device for fresh mineral water soft barrels as claimed in any one of claims 1 to 6, wherein the distance between two adjacent groups of heat sources of the heating device is in the range of 1-3 cm.

9. A bottle blowing device for fresh mineral water soft barrel as claimed in any one of claims 1 to 6, characterized in that,

the furnace temperature of the heating device is within the range of 50-70 ℃;

and/or the temperature of the bottle embryo is within the range of 83-95 ℃;

and/or the bottle blowing air pressure of the bottle blowing mechanism is within the range of 15-25 bar;

and/or the longitudinal stretching ratio of the bottle embryo is in the range of 2.2-4.8, and the transverse stretching ratio of the bottle embryo is in the range of 3.8-6.0.

10. A bottle blowing process for a fresh mineral water soft barrel is characterized by comprising the following steps:

step S101: conveying the bottle blanks by using a conveying device;

step S102: heating the bottle blanks of the conveying device by using a heating device; and

step S103: carrying out bottle blowing treatment on the heated bottle blank by using a bottle blowing mechanism;

the heating device comprises a plurality of groups of heat sources, the heat sources are arranged along the extending direction of the bottle blank, the heating device comprises a heating area arranged on the side face of the bottle blank and a heat preservation area arranged at the bottom of the bottle blank, the heat preservation area of the heating device comprises a first heat source and a second heat source, the first heat source is arranged close to the side face of the bottom of the bottle blank, the second heat source is arranged far away from the side face of the bottom of the bottle blank, in the heating process of the bottle blank, the heat source of the heating area of the heating device works to heat the bottle blank, and the first heat source does not work and the second heat source works in the heat preservation area of the heating device to preserve heat the bottom of the bottle blank and the blank body.

11. The process for blowing a fresh mineral water soft barrel as claimed in claim 10, wherein before the heating treatment of the bottle blank, the process further comprises the following steps:

step S104: preheating the bottle blanks of the conveying device by using a preheating device;

the preheating device and the heating device are arranged along the transmission direction of the conveying device, the preheating device is arranged at the front end of the conveying device, the heating device is arranged at the rear end of the conveying device, and bottle blanks on the conveying device are transmitted to the bottle blowing mechanism for bottle blowing treatment after passing through the preheating device and the heating device.

12. The process of claim 11, wherein the preheating device comprises a plurality of heat sources arranged in a direction along which the bottle blank extends, the preheating device comprises a heating area disposed at a side of the bottle blank and a heat-preserving area disposed at a bottom of the bottle blank, the heat-preserving area of the preheating device comprises a third heat source and a fourth heat source, the third heat source is disposed near the side of the bottom of the bottle blank, the fourth heat source is disposed far from the side of the bottom of the bottle blank, during the preheating process of the bottle blank, the heat source of the heating area of the preheating device is operated to heat the bottle blank, the third heat source of the heat-preserving area of the preheating device is not operated, and the fourth heat source is operated to preserve heat the bottom of the bottle blank and the body of the bottle blank.

13. The process of claim 11, wherein the heating area of the heating device comprises a fifth heat source, a sixth heat source, a seventh heat source and an eighth heat source, the fifth heat source is disposed corresponding to the shoulder area of the bottle blank, the sixth heat source is disposed corresponding to the upper area of the bottle blank, the seventh heat source is disposed corresponding to the middle-lower area of the bottle blank, the eighth heat source is disposed corresponding to the bottom area of the bottle blank, and during the heating process of the bottle blank:

the heating power ratio of the fifth heat source is greater than the heating power ratio of the sixth heat source, the seventh heat source or the eighth heat source;

and/or the heating power ratio of the eighth heat source is greater than or equal to the heating power ratio of the seventh heat source.

14. The blowing process of a fresh mineral water soft barrel as claimed in claim 13, wherein the heating region of the preheating device includes a ninth heat source, a tenth heat source, an eleventh heat source and a twelfth heat source, the ninth heat source is disposed corresponding to the shoulder region of the bottle blank, the tenth heat source is disposed corresponding to the upper region of the body of the bottle blank, the eleventh heat source is disposed corresponding to the middle and lower region of the body of the bottle blank, the twelfth heat source is disposed corresponding to the bottom region of the bottle blank, and during the preheating process of the bottle blank:

the heating power ratio of the ninth heat source is smaller than the heating power ratio of the tenth heat source or the twelfth heat source.

15. The process for blowing fresh mineral water soft barrels of claim 14 wherein, in the heating process and the preheating process:

making a heating power ratio of the ninth heat source smaller than a heating power ratio of a fifth heat source of the heating device;

and/or the heating power ratio of the fourth heat source is the same as or similar to the heating power ratio of the second heat source.

16. The process of claim 10, wherein an air blower is used to blow air to the bottle preform during the heating process, the air blower is disposed on the opposite side of the bottle preform from the heating device, an air outlet of the air blower is disposed facing the bottle preform, and a heating channel for allowing the bottle preform disposed on the conveying device to pass through is formed between the air blower and the heating device.

17. The bottle blowing process of fresh mineral water soft barrel as claimed in claim 10,

the furnace temperature of the heating device is within the range of 50-70 ℃;

and/or the temperature of the bottle embryo is within the range of 83-95 ℃;

and/or the bottle blowing air pressure of the bottle blowing mechanism is within the range of 15-25 bar;

and/or the longitudinal stretching ratio of the bottle embryo is in the range of 2.2-4.8, and the transverse stretching ratio of the bottle embryo is in the range of 3.8-6.0.

18. The utility model provides a bottle blowing device of fresh mineral water soft barrel which characterized in that includes:

the conveying device is provided with a bottle blank seat, and the bottle blank seat is used for fixing a bottle blank;

the heating device is used for heating the bottle blanks on the conveying device; and

the bottle blowing mechanism is used for carrying out bottle blowing treatment on the heated bottle blank;

wherein, heating device includes the multiunit heat source, the setting is arranged along the extending direction of bottle embryo to the multiunit heat source, heating device is including setting up the heating region and the heat preservation region of setting in the bottle embryo bottom in the heating process of bottle embryo at the bottle embryo:

the temperature of the middle lower area of the bottle blank is higher than that of the middle upper area of the bottle blank;

and/or the temperature of the middle upper area of the bottle blank is higher than that of the bottle shoulder area of the bottle blank.

Technical Field

The invention belongs to the technical field of bottle blowing equipment and soft barrel bottle blowing, and particularly relates to a bottle blowing device for a fresh mineral water soft barrel and a bottle blowing process.

Background

Along with the improvement of people's quality of life, in bottled water production process, upgrade traditional packaging container and become the direction of this field technical innovation, wherein design into the compressible form with the drinking water cask is a direction. In the use of compressible drinking water bucket, along with the drinking water in the bucket constantly flows out, the ladle body of drinking water bucket can be compressed constantly under atmospheric pressure to prevent the inside of air admission drinking water bucket, further avoided the drinking water in the use by air and dust pollution. The traditional PC barrel used for barreled water packaging barrel and capable of being reused is generally manufactured by adopting an injection stretch blow molding process, and the disposable but incompressible PET bottle is generally manufactured by adopting a high-pressure bottle blowing process, but the barrel manufacturing process and the bottle blowing process are common. However, the conventional bottle blowing process is usually used for manufacturing hard barrels with thick and incompressible wall thickness, and how to manufacture soft barrels by using the bottle blowing process is not reported. Moreover, the compressible drinking water bucket requires that the bucket opening and the bucket bottom have proper wall thickness strength so as to facilitate the integral molding of the soft bucket; the wall thickness of the barrel body is low, so that the barrel body can be smoothly compressed in the using process. If the soft barrel is directly manufactured by adopting the bottle blowing process of the hard barrel, the manufactured soft barrel possibly cannot well meet the quality requirement and realize the function of compressing the soft barrel.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a bottle blowing device and a bottle blowing process for a fresh soft mineral water barrel, and aims to solve the problem that the bottle blowing device and the bottle blowing process for a hard barrel in the prior art cannot be well adapted to the production of a negative-pressure locked fresh soft barrel.

One embodiment of the present invention provides a bottle blowing device for a fresh mineral water soft barrel, which comprises:

the conveying device is provided with a bottle blank seat, and the bottle blank seat is used for fixing a bottle blank;

the heating device is used for heating the bottle blanks on the conveying device; and

the bottle blowing mechanism is used for carrying out bottle blowing treatment on the heated bottle blank;

the heating device comprises a plurality of groups of heat sources, the heat sources are arranged along the extending direction of the bottle blank, the heating device comprises a heating area arranged on the side surface of the bottle blank and a heat preservation area arranged on the side surface of the bottom of the bottle blank, the heat preservation area of the heating device comprises a first heat source and a second heat source, the first heat source is arranged close to the side surface of the bottom of the bottle blank, the second heat source is arranged far away from the side surface of the bottom of the bottle blank, in the heating process of the bottle blank, the heat source of the heating area of the heating device works to heat the bottle blank, and the heating power ratio of the first heat source in the heat preservation area of the heating device is smaller than that of the second heat source so as to perform heat preservation treatment on the bottom of the bottle blank and the blank body.

In one embodiment, the bottle blowing device for fresh mineral water soft barrels further comprises:

the preheating device is used for preheating bottle blanks on the conveying device, the preheating device and the heating device are arranged along the conveying direction of the conveying device, the preheating device is arranged at the front end of the conveying device, the heating device is arranged at the rear end of the conveying device, and the bottle blanks on the conveying device are conveyed to the bottle blowing mechanism for bottle blowing processing after passing through the preheating device and the heating device.

In one embodiment, the preheating device comprises a plurality of groups of heat sources, the plurality of groups of heat sources are arranged along the extension direction of the bottle blank, the preheating device comprises a heating area arranged on the side surface of the bottle blank and a heat preservation area arranged on the side surface of the bottom of the bottle blank, the heat preservation area of the preheating device comprises a third heat source and a fourth heat source, the third heat source is arranged close to the side surface of the bottom of the bottle blank, the fourth heat source is arranged far away from the side surface of the bottom of the bottle blank, in the preheating process of the bottle blank, the heat source of the heating area of the preheating device works to heat the bottle blank, and the heating power ratio of the third heat source in the heat preservation area of the preheating device is smaller than that of the fourth heat source to perform heat preservation on the bottom of the bottle blank and the blank body.

In one embodiment, the heating region of the heating device includes a fifth heat source, a sixth heat source, a seventh heat source and an eighth heat source, the fifth heat source is disposed corresponding to the shoulder region of the bottle blank, the sixth heat source is disposed corresponding to the upper region of the body of the bottle blank, the seventh heat source is disposed corresponding to the middle-lower region of the body of the bottle blank, the eighth heat source is disposed corresponding to the bottom region of the bottle blank, and during the heating process of the bottle blank:

the heating power ratio of the fifth heat source is greater than the heating power ratio of the sixth heat source, the seventh heat source or the eighth heat source;

and/or the heating power ratio of the eighth heat source is greater than or equal to the heating power ratio of the seventh heat source.

In one embodiment, the heating regions of the preheating device include a ninth heat source, a tenth heat source, an eleventh heat source and a twelfth heat source, the ninth heat source is disposed corresponding to the shoulder region of the bottle blank, the tenth heat source is disposed corresponding to the upper region of the body of the bottle blank, the eleventh heat source is disposed corresponding to the middle-lower region of the body of the bottle blank, the twelfth heat source is disposed corresponding to the bottom region of the bottle blank, and during the preheating process of the bottle blank:

a heating power ratio of the ninth heat source is smaller than that of the tenth, eleventh, or twelfth heat source;

in one embodiment, the heating power ratio of the ninth heat source is smaller than the heating power ratio of the fifth heat source;

and/or the heating power ratio of the fourth heat source is the same as or similar to the heating power ratio of the second heat source.

In one embodiment, the blowing device for the fresh mineral water soft barrel further comprises an air supply device, the air supply device is arranged on the side, opposite to the heating device, of the bottle blank, an air outlet of the air supply device is arranged facing the bottle blank, and a heating channel for allowing the bottle blank arranged on the conveying device to pass through is formed between the air supply device and the heating device.

In one embodiment, the distance between two adjacent groups of heat sources of the heating device is in the range of 1-3 cm. Preferably, the distance between the centers of two adjacent groups of heat sources of the heating device is 2cm, and the distance between the heat sources is 1 cm.

In one embodiment, the furnace temperature of the heating device is in the range of 50-70 ℃;

and/or the temperature of the bottle embryo is within the range of 83-95 ℃;

and/or the bottle blowing air pressure of the bottle blowing mechanism is within the range of 15-25 bar;

and/or the longitudinal stretching ratio of the bottle embryo is in the range of 2.2-4.8, and the transverse stretching ratio of the bottle embryo is in the range of 3.8-6.0.

The invention also provides a bottle blowing process of the fresh mineral water soft barrel, which comprises the following steps:

step S101: conveying the bottle blanks by using a conveying device;

step S102: heating the bottle blanks of the conveying device by using a heating device; and

step S103: carrying out bottle blowing treatment on the heated bottle blank by using a bottle blowing mechanism;

the heating device comprises a plurality of groups of heat sources, the heat sources are arranged along the extending direction of the bottle blank, the heating device comprises a heating area arranged on the side surface of the bottle blank and a heat preservation area arranged on the side surface of the bottom of the bottle blank, the heat preservation area of the heating device comprises a first heat source and a second heat source, the first heat source is arranged close to the side surface of the bottom of the bottle blank, the second heat source is arranged far away from the side surface of the bottom of the bottle blank, in the heating process of the bottle blank, the heat source of the heating area of the heating device works to heat the bottle blank, and the heating power ratio of the first heat source in the heat preservation area of the heating device is smaller than that of the second heat source so as to perform heat preservation treatment on the bottom of the bottle blank and the blank body.

In one embodiment, before the heating treatment of the bottle blank, the method further comprises the following steps:

step S104: preheating the bottle blanks of the conveying device by using a preheating device;

the preheating device and the heating device are arranged along the transmission direction of the conveying device, the preheating device is arranged at the front end of the conveying device, the heating device is arranged at the rear end of the conveying device, and bottle blanks on the conveying device are transmitted to the bottle blowing mechanism for bottle blowing treatment after passing through the preheating device and the heating device.

In one embodiment, in the preheating process, the preheating device includes multiple sets of heat sources, the multiple sets of heat sources are arranged in an extending direction of the bottle blank, the preheating device includes a heating region disposed on a side surface of the bottle blank and a heat preservation region disposed on a side surface of a bottom of the bottle blank, the heat preservation region of the preheating device includes a third heat source and a fourth heat source, the third heat source is disposed near the side surface of the bottom of the bottle blank, the fourth heat source is disposed away from the side surface of the bottom of the bottle blank, in the preheating process of the bottle blank, the heat source of the heating region of the preheating device works to heat the bottle blank, and a heating power ratio of the third heat source in the heat preservation region of the preheating device is smaller than a heating power ratio of the fourth heat source to perform heat preservation on the bottom of the bottle blank and the blank.

In one embodiment, the heating region of the heating device includes a fifth heat source, a sixth heat source, a seventh heat source and an eighth heat source, the fifth heat source is disposed corresponding to the shoulder region of the bottle blank, the sixth heat source is disposed corresponding to the upper region of the body of the bottle blank, the seventh heat source is disposed corresponding to the middle-lower region of the body of the bottle blank, the eighth heat source is disposed corresponding to the bottom region of the bottle blank, and during the heating process of the bottle blank:

the heating power ratio of the fifth heat source is greater than the heating power ratio of the sixth heat source, the seventh heat source or the eighth heat source;

and/or the heating power ratio of the eighth heat source is greater than or equal to the heating power ratio of the seventh heat source.

In one embodiment, the heating regions of the preheating device include a ninth heat source, a tenth heat source, an eleventh heat source and a twelfth heat source, the ninth heat source is disposed corresponding to the shoulder region of the bottle blank, the tenth heat source is disposed corresponding to the upper region of the body of the bottle blank, the eleventh heat source is disposed corresponding to the middle-lower region of the body of the bottle blank, the twelfth heat source is disposed corresponding to the bottom region of the bottle blank, and during the preheating process of the bottle blank:

a heating power ratio of the ninth heat source is smaller than that of the tenth, eleventh, or twelfth heat source.

In one embodiment, during the heating process and the preheating process:

making a heating power ratio of the ninth heat source smaller than a heating power ratio of the fifth heat source;

and/or the heating power ratio of the fourth heat source is the same as or similar to the heating power ratio of the second heat source.

In one embodiment, during the heating treatment, an air supply device is used for supplying air to the bottle blanks, the air supply device is arranged on the side, opposite to the heating device, of the bottle blanks, an air outlet of the air supply device is arranged facing the bottle blanks, and a heating channel for allowing the bottle blanks arranged on the conveying device to pass through is formed between the air supply device and the heating device.

In one embodiment, the furnace temperature of the heating device is in the range of 50-70 ℃;

and/or the temperature of the bottle embryo is within the range of 83-95 ℃;

and/or the bottle blowing air pressure of the bottle blowing mechanism is within the range of 15-25 bar;

and/or the longitudinal stretching ratio of the bottle embryo is in the range of 2.2-4.8, and the transverse stretching ratio of the bottle embryo is in the range of 3.8-6.0.

The invention further provides a heating device for heating bottle blanks in the soft-barrel bottle blowing process, which comprises a plurality of groups of heat sources, wherein the heat sources are arranged in an extending direction of the bottle blanks, the heating device comprises a heating area arranged on the side surface of the bottle blanks and a heat preservation area arranged at the bottom of the bottle blanks, the heat preservation area of the heating device comprises a first heat source and a second heat source, the first heat source is arranged close to the side surface of the bottom of the bottle blanks, the second heat source is arranged far away from the side surface of the bottom of the bottle blanks, the heat sources of the heating area of the heating device work to heat the bottle blanks in the heating process of the bottle blanks, and the heating power ratio of the first heat source in the heat preservation area of the heating device is smaller than that of the second heat source so as to heat the bottom of the bottle blanks and the blank bodies.

The invention provides a bottle blowing device for a fresh mineral water soft barrel, which comprises:

the conveying device is provided with a bottle blank seat, and the bottle blank seat is used for fixing a bottle blank;

the heating device is used for heating the bottle blanks on the conveying device; and

the bottle blowing mechanism is used for carrying out bottle blowing treatment on the heated bottle blank;

wherein, heating device includes the multiunit heat source, the setting is arranged along the extending direction of bottle embryo to the multiunit heat source, heating device is including setting up the heating region and the heat preservation region of setting in the bottle embryo bottom in the heating process of bottle embryo at the bottle embryo:

the temperature of the middle lower area of the bottle blank is higher than that of the middle upper area of the bottle blank;

and/or the temperature of the middle upper area of the bottle blank is higher than that of the bottle shoulder area of the bottle blank.

In the bottle blowing device and the bottle blowing process for the fresh mineral water soft barrel provided by the embodiment, the heating device is arranged to comprise a heating area and a heat preservation area, the heating area is arranged on the side surface of the bottle blank, and the heat preservation area is arranged on the side surface of the bottom of the bottle blank. The bottom of the bottle blank is provided with the heat preservation area, so that the bottom of the bottle blank is ensured to be more suitable in the bottle blowing process. In addition, in the heating process of the bottle blank, the heating power ratio of the first heat source in the heat preservation area of the heating device is smaller than that of the second heat source, so that the heat preservation treatment is carried out on the bottom and the blank body of the bottle blank. On one hand, the heating power ratio of the first heat source arranged close to the side surface of the bottom of the bottle blank is smaller, so that the mode can avoid that the temperature of the bottom of the bottle blank rises too fast. On the other hand, the second heat source far away from the side face of the bottom of the bottle blank has higher heating power ratio, so that the phenomenon that the bottom of the soft barrel is cracked during bottle blowing due to nonuniform heating of the bottom of the bottle blank can be avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a bottle blowing device for a fresh mineral water soft barrel according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a soft barrel made by the bottle blowing device of the fresh mineral water soft barrel in FIG. 1;

FIG. 3 is a schematic view of the bottle blowing device of the fresh mineral water soft barrel in FIG. 1 in a forward direction;

FIG. 4 is a schematic top view of the bottle blowing device of the fresh mineral water soft barrel in FIG. 1;

FIG. 5 is a schematic cross-sectional view of the bottle blowing device of the fresh mineral water soft barrel in FIG. 1;

FIG. 6 is a schematic structural view of the heating apparatus of FIG. 5;

FIG. 7 is a schematic structural view of a bottle blowing device for a fresh mineral water soft barrel according to another embodiment of the present invention;

FIG. 8 is a schematic view of the preheating device in FIG. 7;

FIG. 9 is a schematic structural diagram of a bottle blowing device for a fresh mineral water soft barrel according to another embodiment of the present invention;

fig. 10 is a schematic flow chart of a bottle blowing process of a fresh mineral water soft barrel according to another embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

One embodiment of the present invention provides a bottle blowing device for a fresh mineral water soft barrel, which comprises:

the conveying device is provided with a bottle blank seat, and the bottle blank seat is used for fixing a bottle blank;

the heating device is used for heating the bottle blanks on the conveying device; and

the bottle blowing mechanism is used for carrying out bottle blowing treatment on the heated bottle blank;

the heating device comprises a plurality of groups of heat sources, the heat sources are arranged along the extending direction of the bottle blank, the heating device comprises a heating area arranged on the side surface of the bottle blank and a heat preservation area arranged on the side surface of the bottom of the bottle blank, the heat preservation area of the heating device comprises a first heat source and a second heat source, the first heat source is arranged close to the side surface of the bottom of the bottle blank, the second heat source is arranged far away from the side surface of the bottom of the bottle blank, in the heating process of the bottle blank, the heat source of the heating area of the heating device works to heat the bottle blank, and the heating power ratio of the first heat source in the heat preservation area of the heating device is smaller than that of the second heat source so as to perform heat preservation treatment on the bottom of the bottle blank and the blank body.

In the bottle blowing device for the fresh mineral water soft barrel, the heating device is arranged to comprise a heating area and a heat preservation area, the heating area is arranged on the side face of the bottle blank, and the heat preservation area is arranged on the side face of the bottom of the bottle blank. The side surface of the bottom of the bottle blank is provided with the heat preservation area, so that the bottom and the blank body of the bottle blank are ensured to be more suitable in the bottle blowing process. In addition, in the heating process of the bottle blank, the heating power ratio of the first heat source in the heat preservation area of the heating device is smaller than that of the second heat source, so that the heat preservation treatment is carried out on the bottom and the blank body of the bottle blank. On one hand, the heating power ratio of the first heat source arranged close to the side surface of the bottom of the bottle blank is smaller, so that the mode can prevent the temperature of the bottom and the body of the bottle blank from rising too fast. On the other hand, because the heating power ratio of the second heat source far away from the side surface of the bottom of the bottle blank is larger, the condition that the outside cold air rapidly enters the heating device and contacts with the bottom of the bottle blank or reduces the furnace temperature can be avoided, and the condition that the bottom of the bottle blank is heated unevenly is avoided.

Referring to fig. 1 to 4, a bottle blowing device 100 for a fresh mineral water soft barrel is provided in one embodiment of the present invention. The bottle blowing device 100 for the fresh mineral water soft barrel comprises a conveying device 110, a heating device 120 and a bottle blowing mechanism 130. The conveying device 110 is provided with a bottle blank seat 111. The bottle embryo seat 111 is used for fixing the bottle embryo 200. The heating device 120 is used for heating the bottle blanks 200 on the conveying device 110. The bottle blowing mechanism 130 is used for performing bottle blowing processing on the heated bottle blank 200 to form a disposable negative pressure fresh-locking soft barrel with good compressibility.

In one embodiment, after the bottle blowing mechanism 130 performs bottle blowing processing on the heated bottle blank 200, the disposable negative pressure fresh-locking soft barrel is formed as shown in fig. 2. The soft barrel 400 is a disposable negative pressure fresh-locking soft barrel after bottle blowing processing is carried out on the bottle blank 200. The disposable negative pressure fresh-locking soft barrel 400 can be fully compressed in the axial direction of the barrel body. When the disposable negative pressure fresh-locking soft barrel 400 is used, the disposable negative pressure fresh-locking soft barrel 400 can be continuously compressed along the axial direction of the barrel body under the action of the atmospheric pressure along with the continuous outflow of drinking water in the accommodating cavity inside the disposable negative pressure fresh-locking soft barrel 400. The arrangement mode can prevent external air from entering the disposable negative pressure fresh-locking soft barrel 400 in the process of flowing out drinking water under the condition that the barrel opening is sealed and only water is supplied, so that the water in the disposable negative pressure fresh-locking soft barrel 400 is kept fresh. That is, in the disposable negative pressure fresh-keeping soft bucket 400, the water in the soft bucket maintains a state of zero contact of air. That is, during the use process, the disposable negative pressure fresh-keeping soft barrel 400 starts to shrink while taking water, and no air enters the barrel to contact with the water until the water in the barrel is completely discharged. The negative pressure state can be kept in the barrel by the mode, so that air cannot enter the barrel to be contacted with water, and the water in the barrel is prevented from being polluted by the air.

The disposable negative pressure fresh-locking soft barrel 400 can be made of one or more of PET (Polyethylene terephthalate), HDPE (high density Polyethylene), and PP (polypropylene), as required. In this embodiment, the disposable negative pressure fresh-keeping locking soft barrel 400 is made of PET material.

It can be seen that since the soft barrel 400 is designed with the problem of barrel compression, the barrel is often required to be interfolded and thin to facilitate compression. In addition, to facilitate the integral molding of the soft barrel 400 and the subsequent stacking and use during use and storage, the rim and bottom regions of the soft barrel 400 generally require a thicker wall than the barrel body. By adopting the traditional bottle blowing device and bottle blowing process of the hard barrel, the effects that the barrel body required by the soft barrel 400 is not easily whitened and keeps better compressibility, and the barrel opening and the barrel bottom area have higher hardness and are not easily deformed cannot be realized. The bottle blowing device 100 for the fresh mineral water soft barrel provided by the embodiment is to solve the above problems.

Referring to fig. 5 and fig. 6, in one embodiment, the heating device 120 includes a plurality of sets of heat sources 121. The plurality of heat sources 121 are arranged along the extending direction of the bottle blank 200. Specifically, the heating device 120 includes a heating area a1 disposed on the side of the bottle blank 200 and a heat-retaining area B1 disposed on the bottom of the bottle blank 200. The keep warm region B1 of the heating device 120 includes a first heat source 1211 and a second heat source 1212. The first heat source 1211 is disposed near the bottom side of the bottle embryo 200. The second heat source 1212 is disposed away from the bottom side of the bottle blank 200. During the heating process of the bottle blank 200, the heat source 121 of the heating area a1 of the heating device 120 is operated to heat the bottle blank 200. The heating power ratio of the first heat source 1211 in the heat preservation area B1 of the heating device 120 is smaller than that of the second heat source 1212, so as to preserve the heat of the bottom and the body of the bottle blank 200. Specifically, in this embodiment, the first heat source 1211 of the heat-retaining region B1 of the heating device 120 is not operated, and the second heat source 1212 is operated to retain the bottom and body of the bottle blank 200. In the present embodiment, the heating device 120 is a heating lamp box, and includes a box body 122 and a plurality of sets of heat sources 121 disposed in the box body 122. In the process of conveying the bottle preform 200, the bottle opening of the bottle preform 200 faces upward, the bottle bottom faces downward, and the bottle preform is rotationally conveyed along the movement direction of the conveying device 110. At this time, the plurality of sets of heat sources 121 are arranged in sequence from top to bottom. The heating zone a1 of the heating device 120 is located above the soak zone B1 of the heating device 120. In one embodiment, the distance between the centers of the two adjacent groups of heat sources 121 of the heating device 120 is in the range of 1-3cm, and the distance between the centers of the two adjacent groups of heat sources of the heating device is preferably 2cm and 1cm, so that the bottle blanks 200 can be heated. Specifically, in the present embodiment, the heat source 121 is made of an infrared heating lamp tube. Each group of infrared heating lamp tubes is controlled by a separate heating controller, so that the heating power turn-on ratio of each group of infrared heating lamp tubes can be independently adjusted.

In the bottle blowing device 100 for the fresh mineral water soft barrel, the heating device 120 is arranged to comprise a heating area A1 and a heat preservation area B1. The heating area a1 is disposed on the side of the bottle blank 200. The heat preservation area B1 is arranged at the bottom side of the bottle blank 200. The heat preservation area B1 is arranged on the side face of the bottom of the bottle blank 200, so that the temperature of the bottom and the blank body of the bottle blank 200 is more suitable for bottle blowing operation in the bottle blowing process. In addition, during the heating process of the bottle blank 200, the heating power ratio of the first heat source 1211 in the heat preservation region B1 of the heating device 120 is smaller than the heating power ratio of the second heat source 1212, so as to preserve the heat of the bottom and the body of the bottle blank 200. On the one hand, since the heating power ratio of the first heat source 1211 disposed near the bottom of the bottle blank 200 is small, this way can prevent the temperature of the bottom and the body of the bottle blank 200 from rising too fast. On the other hand, the second heat source 1212 which is disposed away from the bottom side of the bottle blank 200 has a higher heating power ratio, and the bottom and the blank body of the bottle blank 200 in the heating region are three-dimensionally insulated by using the ascending principle of hot air, so that the situation that the bottom and the blank body of the bottle blank 200 are heated unevenly is avoided.

In one embodiment, the heating zone A1 of the heating apparatus 120 includes a fifth heat source 1213, a sixth heat source 1214, a seventh heat source 1215, and an eighth heat source 1216. The fifth heat source 1213 is disposed corresponding to the shoulder area of the bottle blank 200. In this embodiment, the shoulder area of the bottle blank 200 is disposed below the finish support ring of the bottle blank 200. In the bottle blowing process, the shoulder area of the bottle blank 200 forms the barrel shoulder part of the disposable negative pressure fresh-locking soft barrel 400. The sixth heat source 1214 is disposed corresponding to the upper region of the preform 200. Specifically, the upper part of the preform body of the preform 200 is disposed adjacent to the shoulder region of the preform 200. In the bottle blowing process, the upper part of the body of the disposable negative pressure fresh-locking soft barrel 400 is formed in the upper area of the body of the bottle blank 200. The seventh heat source 1215 is disposed corresponding to the middle-lower region of the preform 200. Specifically, in the bottle blowing process, the lower part of the disposable negative pressure fresh-keeping soft barrel 400 is formed in the middle lower area of the body of the bottle blank 200. The eighth heat source 1216 is disposed corresponding to the bottom region of the bottle blank 200. Specifically, in the bottle blowing process, the bottom area of the body of the bottle blank 200 forms the bottom portion of the disposable negative pressure fresh-locking soft barrel 400. Since the bottle opening of the bottle blank 200 is arranged from top to bottom, the fifth heat source 1213, the sixth heat source 1214, the seventh heat source 1215 and the eighth heat source 1216 are also arranged in order from top to bottom. The fifth heat source 1213 is disposed in a top position; the eighth heat source 1216 is disposed in a bottom position; the sixth and seventh heat sources 1214, 1215 are disposed between the fifth and eighth heat sources 1213, 1216. In this embodiment, the seventh heat source 1215 is two sets of heat sources, which are equally spaced between the sixth heat source 1214 and the eighth heat source 1216.

Specifically, during the heating of the bottle blank 200 using the heating device 120:

the heating power ratio of the fifth heat source 1213 is greater than the heating power ratio of the sixth heat source 1214, the seventh heat source 1215, or the eighth heat source 1216; and/or the heating power ratio of the eighth heat source 1216 is greater than or equal to the heating power ratio of the seventh heat source 1215. In the present embodiment, the ratio of the heating power of the fifth heat source 1213 to the rated power of the heat source is between 40% and 55%; the ratio of the heating power of the sixth heat source 1214 to the rated power of the heat source is between 22% and 42%; the ratio of the heating power of the seventh heat source 1215 to the rated power of the heat source is between 20% and 40%. The ratio of the heating power of the eighth heat source 1216 to the rated power of the heat source is between 20% and 40%. In the present embodiment, the rated power of the heat source is in the range of 1800W to 3200W. The heating power ratios of the fifth heat source 1213, the sixth heat source 1214, the seventh heat source 1215 and the eighth heat source 1216 are set to the above form with the purpose of:

1. because the bottle blank 200 needs to form the disposable negative pressure fresh-locking soft barrel 400 in the subsequent bottle blowing process, at this time, the shape of the bottle opening of the bottle blank 200 should be kept unchanged in the subsequent bottle blowing process. Therefore, during the heating process, a cooling liquid passage is usually provided near the mouth of the preform 200 to prevent the temperature of the mouth from being too high and deforming. Due to the presence of the cooling liquid near the mouth of the bottle embryo 200, the heating power ratio of the fifth heat source 1213 needs to be set greater than the heating power ratio of the sixth heat source 1214, the seventh heat source 1215, or the eighth heat source 1216 to counteract the effect of the cooling liquid at the mouth of the bottle embryo 200 on the overall temperature of the bottle embryo 200. Meanwhile, the heating power of the fifth heat source 1213 is set to be higher, which is also beneficial to evaporating the liquid drops near the bottle opening of the bottle blank 200, thereby avoiding the influence of the corresponding liquid drops on the subsequent bottle blowing process.

2. Since the sixth heat source 1214 is disposed corresponding to the upper region of the preform 200, the upper region of the preform 200 corresponds to the upper portion of the barrel body of the disposable negative pressure fresh-locking soft barrel 400 during the bottle blowing process. Since the upper body of the soft barrel 400 is disposed near the shoulder of the soft barrel 400, the stretching degree is large, and therefore, the heating power of the region needs to be set slightly larger to soften the partial region of the preform 200.

3. Since the heating power ratio of the first heat source 1211 near the bottom of the bottle blank 200 is small, the eighth heat source 1216 disposed at the bottom side of the bottle blank 200 can increase the heating temperature to achieve uniform heating of the bottle blank 200. On the other hand, since the bottom of the bottle preform 200 is not affected by the cooling water, the heating power ratio of the eighth heat source 1216 is not too high to exceed the heating power ratio of the fifth heat source 1213.

In fact, in the heating device 120, the heat sources 121 are disposed in the box 122 at equal intervals or close to equal intervals. Therefore, the number of the first heat sources 1211 of the heat-preserving region B1 may be set to 2-4 groups as appropriate; the number of the second heat sources 1212 of the heat-insulating region B1 may be set to 3-6 groups as appropriate.

In one embodiment, the heating device 120 has an oven temperature in the range of 50-70 ℃. The temperature of the preform 200 is in the range of 83-95 ℃. In the bottle blowing process of the bottle blowing mechanism 130, the bottle blowing air pressure is in the range of 15-25 bar; the draw ratio of the preform 200 was: the longitudinal stretch ratio of the bottle blank 200 is in the range of 2.2-4.8; the bottle preform 200 has a transverse draw ratio in the range of 3.8-6.0.

Specifically, in one embodiment, during the heating of the bottle blank 200:

the temperature of the middle lower area of the bottle blank 200 is higher than that of the middle upper area of the bottle blank 200;

and/or the temperature of the middle upper area of the bottle blank 200 is higher than that of the bottle shoulder area of the bottle blank 200.

By setting different temperatures in different areas of the bottle blank 200, the compression performance of the soft barrel 400 blown from the bottle blank 200 is better.

Referring to fig. 7 and 8, in one embodiment, the bottle blowing device 100 for fresh mineral water soft barrel further includes a preheating device 140. The preheating device 140 is used for preheating the bottle blanks 200 on the conveying device 110. The preheating device 140 and the heating device 120 are arranged in line along the conveying direction of the conveying device 110. The preheating device 140 is disposed at a front end of the conveying device 110. The heating device 120 is disposed at the rear end of the conveying device 110. The bottle preform 200 on the conveying device 110 passes through the preheating device 140 and the heating device 120 and then is conveyed to the bottle blowing mechanism 130 for bottle blowing.

In one embodiment, the preheating device 140 includes a plurality of sets of heat sources 141. The plurality of heat sources 141 are arranged along the extending direction of the bottle blank 200. The preheating device 140 includes a heating area a2 disposed on the side of the bottle blank 200 and a heat preservation area B2 disposed on the bottom side of the bottle blank 200. Hold-warm region B2 of preheating device 140 includes third heat source 1411 and fourth heat source 1412. The third heat source 1411 is disposed proximate to the bottom side of the preform 200. The fourth heat source 1412 is disposed away from the bottom side of the bottle blank 200. During the preheating process of the bottle blank 200, the heat source 141 of the heating area a2 of the preheating device 140 is operated to heat the bottle blank 200. The heating power ratio of the third heat source 1411 in the heat preservation area B2 of the preheating device 140 is smaller than that of the fourth heat source 1412, so as to preserve the heat of the bottom and the body of the bottle blank 200. In fact, said preheating means 140 are provided for the purpose of: before the bottle blank 200 is heated, the bottle blank 200 is heated at a lower temperature, so that the bottle blank 200 is subjected to a preliminary heating and softening process.

In one embodiment, the heating zones a2 of the preheating device 140 include a ninth heat source 1413, a tenth heat source 1414, an eleventh heat source 1415, and a twelfth heat source 1416. The ninth heat source 1413 is disposed corresponding to the shoulder area of the bottle blank 200. The tenth heat source 1414 is disposed corresponding to the upper region of the preform 200. The eleventh heat source 1415 is disposed corresponding to a middle-lower region of the preform 200. The twelfth heat source 1416 is disposed corresponding to the bottom region of the bottle blank 200. The tenth heat source 1414 and the eleventh heat source 1415 are disposed between the ninth heat source 1413 and the twelfth heat source 1416.

During the preheating of the bottle blank 200 by the preheating device 140:

the heating power of the ninth heat source 1413 is less than the heating power of the tenth heat source 1414 or the twelfth heat source 1416. In the present embodiment, the ratio of the heating power of the ninth heat source 1413 to the rated power of the heat source is between 9% and 29%; the ratio of the heating power of the tenth heat source 1414 to the rated power of the heat source is between 20% and 45%; the ratio of the heating power of the eleventh heat source 1415 to the rated power of the heat source is between 20% and 40%; the ratio of the heating power of the twelfth heat source 1416 to the rated power of the heat source is between 18% and 40%.

Since the preheating is performed to prevent the temperature change of the bottle blank 200 from being too high and affecting the performance of the material, as mentioned above, the bottle opening of the bottle blank 200 is provided with a cooling groove, so that the initial temperature of the bottle opening of the bottle blank 200 is lower. At this time, the heating power ratio of the ninth heat source 1413 is made smaller than that of the tenth heat source 1414 or the twelfth heat source 1416, so that the temperature at the bottle mouth of the bottle blank 200 does not change too sharply to affect the material performance during the preheating process. On the other hand, since the heating power ratio of the third heat source 1411 near the bottom of the bottle blank 200 is smaller, the tenth heat source 1415 disposed on the bottom side of the bottle blank 200 can increase the heating temperature for a while to achieve uniform heating of the bottle blank 200.

In one embodiment, the heating power ratio of the ninth heat source 1413 is less than the heating power ratio of the fifth heat source 1213; and/or the heating power ratio of fourth heat source 1412 is the same as or similar to the heating power ratio of second heat source 1212. In one aspect, the heating power ratio of the ninth heat source 1413 of the heating zone a2 is less than the heating power ratio of the fifth heat source 1213 of the heating zone a1 for preheating the bottle blanks 200. On the other hand, since the heat-insulating region is provided mainly for keeping the bottom and body of the heated bottle preform warm and isolating the outside cold air from the outside of the heating device 120 or the preheating device 140, the heating power ratio of the fourth heat source 1412 in the heat-insulating region B2 is set to be the same or substantially the same as the heating power ratio of the second heat source 1212 in the heat-insulating region B1, which can effectively achieve the heat-insulating function of the bottle preform and the heating furnace.

In one embodiment, the bottle blowing device 100 for fresh mineral water soft barrels further comprises an air supply device 150. The air supply device 150 is disposed on the opposite side of the bottle blank 200 from the heating device 120. The air outlet of the air supply device 150 faces the bottle blank 200. A heating channel for passing the bottle blanks 200 arranged on the conveying device 110 is formed between the air supply device 150 and the heating device 120.

In one embodiment, the delivery device 110 is provided with a cooling liquid channel. The cooling liquid channel is arranged close to the bottle opening of the bottle blank 200. When the bottle preform 200 is fixed on the bottle preform seat 111, the cooling liquid channel on the conveying device 110 is disposed near the bottle opening of the bottle preform 200, so as to reduce the temperature of the bottle opening of the bottle preform 200. In this embodiment, the cooling liquid is cooling water.

The bottle blowing device 100 for the fresh mineral water soft barrel can also comprise a console according to requirements. The console is used for controlling the whole fresh mineral water soft barrel bottle blowing device 100 to work according to a set program.

The working process of the fresh mineral water soft barrel bottle blowing device 100 is as follows:

the preforms 200 are transferred to the conveyor 110. Specifically, the conveying device 110 is provided with a preform seat 111. When the conveying device 110 is operated, the preform seat 111 is inserted into the mouth of the preform 200, so that the preform seat 111 and the preform 200 are fixed together. According to the requirement, the surface of the bottle blank seat 111 contacting with the bottle mouth of the bottle blank 200 is provided with a convex elastic sheet. The elastic piece can strengthen the combination force between the bottle blank seat 111 and the bottle blank 200.

The conveying device 110 is constantly moving, so as to drive the bottle blank 200 to rotate and move along with the bottle blank.

When the bottle blank 200 moves to the position of the preheating device 140, the preheating device 140 performs a preheating process on the bottle blank 200.

After the preheating process is completed, the bottle blank 200 is moved to the position of the heating device 120, and the heating device 120 performs the heating process on the bottle blank 200.

After the heating process of the bottle preform 200 is completed, the bottle preform 200 is conveyed to the bottle blowing mechanism 130 for bottle blowing process. In the process of blowing, the bottle blank 200 is fixed in the mold of the bottle blowing mechanism 130. The air outlet pipe is extended into the bottle blank 200 to perform a pre-blowing action by low-pressure air to produce the parison of the bottle. Then, the middle-pressure gas is introduced into the air outlet pipe to perform the second-step bottle blowing operation so as to form the shape of the soft barrel. And when the soft barrel is cooled, the soft barrel can be taken out from the mold.

The number of the heating means 120 or the preheating means 140 is not limited to one, and may be two or more, as required. Referring to fig. 9, another embodiment of the invention provides a bottle blowing device 300 for fresh mineral water soft barrel. The bottle blowing device 300 for the fresh mineral water soft barrel comprises a conveying device 310, a heating device 320, a bottle blowing mechanism 330 and a preheating device 340. The conveying device 310 is provided with a bottle blank seat 311. The preform seat 311 is used for fixing the preform 200. The heating device 320 is used for heating the bottle blanks 200 on the conveying device 310. The bottle blowing mechanism 330 is used for blowing the heated bottle blank 300 to form a disposable negative pressure fresh-locking soft barrel.

In this embodiment, the heating device 320 includes a first heating device 321 and a second heating device 322. The first heating device 321 and the second heating device 322 are sequentially arranged along the conveying direction of the conveying device 310. The structure or shape of the first heating device 321 and the second heating device 322 is similar to that of the heating device 120 provided in the above embodiment, and is not described again here. The preheating device 340 includes a first preheating device 341, a second preheating device 342, and a third preheating device 343. The first preheating device 341, the second preheating device 342, and the third preheating device 343 are arranged in sequence along the transport direction of the conveying device 310. In this embodiment, the bottle preform 200 sequentially passes through the first preheating device 341, the second preheating device 342, the third preheating device 343, the first heating device 321, and the second heating device 322, and then enters the bottle blowing mechanism 330 for bottle blowing.

In fact, when the heating device 320 includes the first heating device 321 and the second heating device 322, since the second heating device 322 is disposed between the bottle blowing mechanism 330 and the first heating device 321, the heating power ratio of the second heat source in the heat preservation area of the second heating device 322 is greater than that of the second heat source in the heat preservation area of the first heating device 321, so as to perform the final preparation work before bottle blowing. In the present embodiment, the ratio of the heating power of the second heat source to the rated power of the heat source in the heat preservation area of the first heating device 321 is between 27% and 43%; the ratio of the heating power of the second heat source to the rated power of the heat source in the heat-insulating region of the second heating device 322 is between 38% and 55%.

In fact, when the preheating device 340 includes the first preheating device 341, the second preheating device 342, and the third preheating device 343, the heating powers of the first preheating device 341 and the third preheating device 343 may also be adjusted according to actual needs. For example, in winter when the room temperature is relatively low, the heating power of the second preheating device 342 may be increased by 10% to 24% as a whole; and the heating power of 5% to 12% of the third preheating device 343 is increased as a whole. It should be noted that when the heating power is increased, the phenomenon of blank whitening caused by overheating needs to be avoided. For another example, in summer with a relatively high room temperature, the heating power of the second preheating device 342 can be reduced by 5% to 12% as a whole; and the heating power of the third preheating device is reduced by 10 to 24 percent as a whole. When the heating power is reduced, attention needs to be paid to avoid the phenomenon that the bottle blank is stretched and whitened due to the fact that the heating power is too low.

Referring to fig. 10, another embodiment of the present invention provides a bottle blowing process for a fresh mineral water soft barrel, which includes the following steps:

step S101: the preform 200 is transported using the transport device 110.

Step S102: heating the bottle blanks 200 of the conveying device 110 by using a heating device 120; and

step S103: the bottle blowing mechanism 130 is used to perform a bottle blowing process on the heated bottle preform 200.

In this embodiment, the conveying device 110 is provided with a preform seat 111. The bottle embryo seat 111 is used for fixing the bottle embryo 200. The heating device 120 is used for heating the bottle blanks 200 on the conveying device 110. The bottle blowing mechanism 130 is used for performing bottle blowing processing on the heated bottle blank 200 to form a disposable negative pressure fresh-locking soft barrel.

In this embodiment, the heating device 120 includes a plurality of sets of heat sources 121. The plurality of heat sources 121 are arranged along the extending direction of the bottle blank 200. The heating device 120 includes a heating area a1 disposed on the side of the bottle blank 200 and a heat preservation area B1 disposed on the bottom of the bottle blank 200. The keep warm region B1 of the heating device 120 includes a first heat source 1211 and a second heat source 1212. The first heat source 1211 is disposed near the bottom side of the bottle embryo 200. The second heat source 1212 is disposed away from the bottom side of the bottle blank 200. During the heating process of the bottle blank 200, the heat source 121 of the heating area a1 of the heating device 120 is operated to heat the bottle blank 200. The heating power ratio of the first heat source 1211 in the heat preservation area B1 of the heating device 120 is smaller than that of the second heat source 1212, so as to preserve the heat of the bottom and body of the bottle blank 200.

In one embodiment, before the heat treatment of the bottle blank 200, the method further comprises the following steps:

step S104: preheating the bottle blanks 200 of the conveying device 110 by using a preheating device 140;

wherein the preheating device 140 and the heating device 120 are arranged in line along the conveying direction of the conveying device 110. The preheating device 140 is disposed at a front end of the conveying device 110. The heating device 120 is disposed at the rear end of the conveying device 110. The bottle preform 200 on the conveying device 110 passes through the preheating device 140 and the heating device 120 and then is conveyed to the bottle blowing mechanism 130 for bottle blowing.

In one embodiment, the preheating device 140 includes a plurality of sets of heat sources 141 during the preheating process. The plurality of heat sources 141 are arranged along the extending direction of the bottle blank 200. The preheating device 140 includes a heating area a2 disposed on the side of the bottle blank 200 and a heat preservation area B2 disposed on the bottom side of the bottle blank 200. Hold-warm region B2 of preheating device 140 includes third heat source 1411 and fourth heat source 1412. The third heat source 1411 is disposed proximate to the bottom side of the preform 200. The fourth heat source 1412 is disposed away from the bottom side of the bottle blank 200. During the preheating process of the bottle blank 200, the heat source 141 of the heating area a2 of the preheating device 140 is operated to heat the bottle blank 200. The heating power ratio of the third heat source 1411 in the heat preservation area B2 of the preheating device 140 is smaller than that of the fourth heat source 1412, so as to preserve the heat of the bottom and the body of the bottle blank 200.

In one embodiment, the heating zone A1 of the heating apparatus 120 includes a fifth heat source 1213, a sixth heat source 1214, a seventh heat source 1215, and an eighth heat source 1216. The fifth heat source 1213 is disposed corresponding to the shoulder area of the bottle blank 200. In this embodiment, the shoulder area of the bottle blank 200 is disposed below the finish support ring of the bottle blank 200. In the bottle blowing process, the shoulder area of the bottle blank 200 forms the barrel shoulder part of the disposable negative pressure fresh-locking soft barrel 400. The sixth heat source 1214 is disposed corresponding to the upper region of the preform 200. Specifically, the upper part of the preform body of the preform 200 is disposed adjacent to the shoulder region of the preform 200. In the bottle blowing process, the upper part of the body of the disposable negative pressure fresh-locking soft barrel 400 is formed in the upper area of the body of the bottle blank 200. The seventh heat source 1215 is disposed corresponding to the middle-lower region of the preform 200. Specifically, in the bottle blowing process, the middle lower part of the body of the disposable negative pressure fresh-keeping soft barrel 400 is formed in the middle lower part of the body of the bottle blank 200. The eighth heat source 1216 is disposed corresponding to the bottom region of the bottle blank 200. Specifically, during the bottle blowing process, the bottom area of the bottle blank 200 forms the bottom portion of the disposable negative pressure fresh-locking soft barrel 400. Since the bottle opening of the bottle blank 200 is arranged from top to bottom, the fifth heat source 1213, the sixth heat source 1214, the seventh heat source 1215 and the eighth heat source 1216 are also arranged in order from top to bottom. The fifth heat source 1213 is disposed in a top position; the eighth heat source 1216 is disposed in a bottom position; the sixth and seventh heat sources 1214, 1215 are disposed between the fifth and eighth heat sources 1213, 1216. In this embodiment, the seventh heat source 1215 is two sets of heat sources, which are equally spaced between the sixth heat source 1214 and the eighth heat source 1216.

During the heating of the bottle blank 200:

such that the heating power ratio of the fifth heat source 1213 is greater than the heating power ratio of the sixth heat source 1214, the seventh heat source 1215, or the eighth heat source 1216;

and/or such that the heating power ratio of eighth heat source 1216 is greater than or equal to the heating power ratio of seventh heat source 1215.

In one embodiment, the heating zones a2 of the preheating device 140 include a ninth heat source 1413, a tenth heat source 1414, an eleventh heat source 1415, and a twelfth heat source 1416. The ninth heat source 1413 is disposed corresponding to the shoulder area of the bottle blank 200. The tenth heat source 1414 is disposed corresponding to the upper region of the preform 200. The eleventh heat source 1415 is disposed corresponding to the middle and lower region of the body of the bottle blank 200. The twelfth heat source 1416 is disposed corresponding to the bottom region of the bottle blank 200. The tenth heat source 1414 and the eleventh heat source 1415 are disposed between the ninth heat source 1413 and the twelfth heat source 1416.

During the preheating process of the bottle blank:

such that a heating power ratio of the ninth heat source 1413 is less than a heating power ratio of the tenth heat source 1414 or the twelfth heat source 1416;

in one embodiment, during the heating process and the preheating process:

so that the heating power ratio of the ninth heat source 1413 of the heating zone a2 of the preheating device 140 is smaller than the heating power ratio of the fifth heat source 1213 of the heating zone a1 of the heating device 120;

and/or, the heating power ratio of the fourth heat source 1412 of the heat preservation area B2 of the preheating device 140 is the same as or similar to the heating power ratio of the second heat source 1212 of the heat preservation area B1 of the heating device 120.

In one embodiment, during the heat treatment, the blowing device 150 is used to blow air to the bottle blanks 200. The air supply device 150 is disposed on the opposite side of the bottle blank 200 from the heating device 120. The air outlet of the air supply device 150 faces the bottle blank 200. A heating channel for passing the bottle blanks 200 arranged on the conveying device 110 is formed between the air supply device 150 and the heating device 120.

In one embodiment, the furnace temperature of the heating device 120 is in the range of 50-70 ℃;

and/or the temperature of the bottle blank 200 is within the range of 83-95 ℃;

and/or the blowing air pressure of the blowing mechanism 130 is within the range of 15-25 bar;

and/or the longitudinal stretching ratio of the bottle blank 200 is within the range of 2.2-4.8, and the transverse stretching ratio of the bottle blank 200 is within the range of 3.8-6.0.

In another embodiment, the present invention provides a heating device 120 for heating the bottle preform 200 during the soft-barrel blowing process. The heating device 120 includes a plurality of sets of heat sources 121. The plurality of heat sources 121 are arranged along the extending direction of the bottle blank 200. The heating device 120 includes a heating area a1 disposed on the side of the bottle blank 200 and a heat preservation area B1 disposed on the bottom of the bottle blank 200. The keep warm region B1 of the heating device 120 includes a first heat source 1211 and a second heat source 1212. The first heat source 1211 is disposed near the bottom side of the bottle embryo 200. The second heat source 1212 is disposed away from the bottom side of the bottle blank 200. During the heating process of the bottle blank 200, the heat source 121 of the heating area a1 of the heating device 120 is operated to heat the bottle blank 200. The heating power ratio of the first heat source 1211 in the heat preservation area B1 of the heating device 120 is smaller than that of the second heat source 1212, so as to preserve the heat of the bottom and the body of the bottle blank 200.

Another embodiment of the present invention provides a bottle blowing device 100 for a fresh mineral water soft barrel, comprising:

the conveying device 110 is provided with a bottle embryo seat 111, and the bottle embryo seat 111 is used for fixing the bottle embryo 200;

the heating device 120 is used for heating the bottle blanks 200 on the conveying device 110; and

the bottle blowing mechanism 130 is used for performing bottle blowing processing on the heated bottle blank 200;

the heating device 120 includes a plurality of sets of heat sources, the heat sources are arranged along the extending direction of the bottle blank 200, the heating device 120 includes a heating area a1 disposed on the side of the bottle blank 200 and a heat preservation area B1 disposed at the bottom of the bottle blank 200, and in the heating process of the bottle blank 200:

the temperature of the middle lower area of the bottle blank 200 is higher than that of the middle upper area of the bottle blank 200;

and/or the temperature of the middle upper area of the bottle blank 200 is higher than the temperature of the bottle shoulder area of the bottle blank 200;

and/or the first heat source 1211 of the heat preservation area B1 of the heating device 120 does not work, and the second heat source 1212 works to preserve the heat of the bottom and the body of the bottle embryo 200. .

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.