阅读说明：本技术 塑料瓶大批量生产设备 (Plastic bottle mass production equipment ) 是由 谭森峰 于 2020-05-09 设计创作，主要内容包括：本发明公开了一种塑料瓶大批量生产设备,包括吹塑设备,所述吹塑设备包括链式模具输送装置和吹塑组件,所述链式模具输送装置包括并列设置的多个模具和第一驱动装置,任意相邻的两块模具之间相互铰接使得多个模具形成可传动的由模具构成的模具传送链,所述第一驱动装置驱动所述模具传送链传动。本发明的塑料瓶大批量生产设备增加了模具和吹头的集成度,实现了一次性、高密度、大批量的塑料瓶生产,极大地提高了生产效率,另外,由于整套模具动作运行仅由一个驱动电机来完成,因此显著地降低了设备的制造成本。(The invention discloses plastic bottle mass production equipment which comprises blow molding equipment, wherein the blow molding equipment comprises a chain type mold conveying device and a blow molding assembly, the chain type mold conveying device comprises a plurality of molds and a first driving device which are arranged in parallel, any two adjacent molds are hinged with each other, so that the molds form a mold conveying chain which can be driven and is formed by the molds, and the first driving device drives the mold conveying chain to drive. The plastic bottle mass production equipment increases the integration level of the mould and the blowing head, realizes the plastic bottle production with one time, high density and mass, greatly improves the production efficiency, and obviously reduces the manufacturing cost of the equipment because the action and the operation of the whole set of mould are finished by only one driving motor.)

1. A plastic bottle mass production equipment which characterized in that: the blow molding device comprises a chain type mold conveying device and a blow molding assembly, wherein the chain type mold conveying device comprises a plurality of molds and a first driving device which are arranged in parallel, any two adjacent molds are hinged with each other, so that the plurality of molds form a mold conveying chain which can be driven and is formed by the molds, and the first driving device drives the mold conveying chain to drive; the mold is in a strip shape, a plurality of semi-bottle-shaped grooves are formed in the strip-shaped end faces of the front side and the back side of the strip-shaped mold in parallel, the bottleneck of each semi-bottle-shaped groove is communicated with the top end face of the mold, an exhaust channel communicated to the bottom end face of the mold is arranged at the bottle bottom of each semi-bottle-shaped groove, and any two adjacent molds can be tightly buckled with each other in the transmission process along with the mold conveying chain, so that the semi-bottle-shaped grooves on the two adjacent molds can be buckled to form bottle-shaped cavities; after the two adjacent molds are tightly buckled with each other, the top surfaces of the two molds are connected to form a blow molding plane, the mold conveying chain has a certain length, so that the plurality of molds arranged in parallel can be tightly buckled with each other pairwise, a blow molding plane with a certain length is formed at the top of the plurality of molds arranged in parallel, and a plurality of blow molding bottle mouths arranged in an array are formed on the blow molding plane; the blow molding assembly comprises an air pump capable of blowing high-temperature gas, a flat plate arranged above the chain type mold conveying device, a plurality of blowing heads arranged at the bottom of the flat plate in an array mode, a lifting mechanism for driving the flat plate to move up and down and a second driving device for driving the flat plate to move transversely and reciprocally, each blowing head corresponds to each blow molding bottle mouth in a one-to-one mode, the air outlet of each blowing head faces towards each blow molding bottle mouth, and the air pump is communicated with each blowing head through a pipeline.

2. The mass production facility of plastic bottles according to claim 1, wherein: still be provided with the feed subassembly on the blowing subassembly, the feed subassembly includes the feeder sleeve of many cylinders, the array is provided with a plurality of through-holes that link up the dull and stereotyped upper and lower face on the flat board, respectively has inserted a feeder sleeve in every through-hole, the bottom mouth of pipe terminal surface of feeder sleeve is close to or contacts the blowing plane, and sliding fit from top to bottom between every feeder sleeve and the through-hole, be provided with a plurality of parison holding tanks on the mould side by side, every feeder sleeve can make the bottom mouth of pipe of feeder sleeve can dock repeatedly with corresponding parison holding tank notch along with dull and stereotyped horizontal reciprocating motion.

3. The mass production facility of plastic bottles according to claim 2, wherein: the first driving device comprises a driving rotating shaft, a driven rotating shaft, two driving gears coaxially arranged on the driving rotating shaft, two driven gears coaxially arranged on the driven rotating shaft and a driving motor, wherein a power output shaft of the driving motor is in transmission connection with the driving rotating shaft; and tooth grooves meshed with the teeth of the gear are respectively arranged at the positions, close to the edges, of the left side and the right side of the bottom of each die.

4. A mass production facility for plastic bottles according to claim 3, wherein: the blow molding assembly comprises a frame-shaped flat plate frame, the flat plate frame is arranged on the flat plate frame, the second driving device is arranged on the flat plate frame, the flat plate frame is in sliding fit with the flat plate frame, and the lifting mechanism is connected with the flat plate frame and drives the flat plate frame and the flat plate frame to move up and down integrally.

5. The mass production facility of plastic bottles according to claim 4, wherein: the lower part of the blowing head is conical, the middle part of the blowing head is cylindrical, and the upper part of the blowing head is provided with a flange which protrudes outwards and is used for sealing a blow molding bottle mouth.

6. The mass production facility of plastic bottles according to claim 5, wherein: the second driving device is an air cylinder, the lifting mechanism is a plurality of screw rod mechanisms, each screw rod mechanism comprises a screw rod and a motor for driving the screw rod to rotate, a threaded hole is formed in the pallet, and the screw rods are vertically arranged and inserted into the threaded holes to be in threaded fit with the threaded holes.

Technical Field

The invention belongs to the technical field of machinery, and particularly relates to plastic bottle mass production equipment.

Background

Plastic bottles are indispensable containers for pharmaceutical packaging and daily life, and in the past, plastic bottles have generally been produced by a blow molding process, i.e. a hot-melt parison closed in a mold is blown up by means of gas pressure to form a hollow article. Blow molding is divided into extrusion blow molding and injection blow molding.

Blow molding is used in plastic bottle production lines primarily for the production of thin-walled hollow plastic products, such as water or soda bottles, pipes, automobile bumpers and the like. Most thermoplastics include materials such as PET, PS, and PC that can be processed by blow molding, as well as glass. For the production of asymmetric parts, extrusion blow molding is commonly used. In a production line process, injection molding is performed on a parison that is then moved to a blow molding machine for injection blow molding.

The blow molding process of the existing production line comprises the following four standard steps:

1) the parison is mounted on the blow head of the machine and then placed in a mold, which is divided into two halves.

2) The hot air is blown through the blowing head to form a blank, which is expanded to the shape of the mold.

3) Cooling in the mold for a few seconds, cooling before demolding.

4) Removing additional material from both ends to complete the article.

The existing production line has the following defects: 1. each blowing head is separately and correspondingly provided with a set of die and a mechanism for controlling the die to open and close, and because the occupied space of the mechanism for controlling the die to open and close is enlarged, the number of the blowing heads and the matched dies in a certain space is very limited, which inevitably leads to low production efficiency; 2. every set of mould all need set up the mechanism that solitary control mold opened and shut, just need set up one and drive actuating cylinder if controlling opening and shutting of a pair of mould, whole equipment gets off and need set up a plurality of actuating cylinders that drive for current blow molding production line's structure is very complicated, manufacturing cost is very high.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a mass production apparatus for plastic bottles, which increases the integration of a mold and a blowing head, realizes the production of plastic bottles at one time, in high density and in large batch, greatly improves the production efficiency, and significantly reduces the manufacturing cost of the apparatus.

The invention is realized by the following technical means:

the invention relates to plastic bottle mass production equipment which comprises blow molding equipment, wherein the blow molding equipment comprises a chain type mold conveying device and a blow molding assembly, the chain type mold conveying device comprises a plurality of molds and a first driving device which are arranged in parallel, any two adjacent molds are hinged with each other, so that the plurality of molds form a mold conveying chain which can be driven and is formed by the molds, and the first driving device drives the mold conveying chain to drive; the mold is in a strip shape, a plurality of semi-bottle-shaped grooves are formed in the strip-shaped end faces of the front side and the back side of the strip-shaped mold in parallel, the bottleneck of each semi-bottle-shaped groove is communicated with the top end face of the mold, an exhaust channel communicated to the bottom end face of the mold is arranged at the bottle bottom of each semi-bottle-shaped groove, and any two adjacent molds can be tightly buckled with each other in the transmission process along with the mold conveying chain, so that the semi-bottle-shaped grooves on the two adjacent molds can be buckled to form bottle-shaped cavities; after the two adjacent molds are tightly buckled with each other, the top surfaces of the two molds are connected to form a blow molding plane, the mold conveying chain has a certain length, so that the plurality of molds arranged in parallel can be tightly buckled with each other pairwise, a blow molding plane with a certain length is formed at the top of the plurality of molds arranged in parallel, and a plurality of blow molding bottle mouths arranged in an array are formed on the blow molding plane; the blow molding assembly comprises an air pump capable of blowing high-temperature gas, a flat plate arranged above the chain type mold conveying device, a plurality of blowing heads arranged at the bottom of the flat plate in an array mode, a lifting mechanism for driving the flat plate to move up and down and a second driving device for driving the flat plate to move transversely and reciprocally, each blowing head corresponds to each blow molding bottle mouth in a one-to-one mode, the air outlet of each blowing head faces towards each blow molding bottle mouth, and the air pump is communicated with each blowing head through a pipeline.

Further, still be provided with the feed subassembly on the blowing subassembly, the feed subassembly includes the feed pipe of many root circles section form, the array is provided with a plurality of through-holes that link up the dull and stereotyped upper and lower face on the flat board, respectively has inserted a feed pipe in every through-hole, the bottom mouth of pipe terminal surface of feed pipe is close to or contacts the blowing plane, and sliding fit from top to bottom between every feed pipe and the through-hole, be provided with a plurality of parison holding tanks on the mould side by side, every feed pipe can make the bottom mouth of pipe of feed pipe can dock repeatedly with corresponding parison holding tank notch along with dull and stereotyped horizontal reciprocating motion.

Further, the first driving device comprises a driving rotating shaft, a driven rotating shaft, two driving gears coaxially arranged on the driving rotating shaft, two driven gears coaxially arranged on the driven rotating shaft and a driving motor, wherein a power output shaft of the driving motor is in transmission connection with the driving rotating shaft; and tooth grooves meshed with the teeth of the gear are respectively arranged at the positions, close to the edges, of the left side and the right side of the bottom of each die.

Further, the blow molding assembly comprises a frame-shaped flat plate frame, the flat plate frame is arranged on the flat plate frame, the second driving device is arranged on the flat plate frame, the flat plate frame is in sliding fit with the flat plate frame, and the lifting mechanism is connected with the flat plate frame and drives the flat plate frame and the flat plate frame to move up and down integrally.

Furthermore, the lower part of the blowing head is conical, the middle part of the blowing head is cylindrical, and the upper part of the blowing head is provided with a flange which protrudes outwards and is used for sealing the mouth of the blow molding bottle.

Further, the second driving device is an air cylinder, the lifting mechanism is a plurality of screw rod mechanisms, each screw rod mechanism comprises a screw rod and a motor for driving the screw rod to rotate, a threaded hole is formed in the pallet, and the screw rods are vertically arranged and inserted into the threaded holes to be in threaded fit with the threaded holes.

The invention has the following beneficial effects: the invention relates to plastic bottle mass production equipment which comprises blow molding equipment, wherein the blow molding equipment comprises a chain type mold conveying device and a blow molding assembly, the chain type mold conveying device comprises a plurality of molds and a first driving device which are arranged in parallel, any two adjacent molds are hinged with each other, so that the plurality of molds form a mold conveying chain which can be driven and is formed by the molds, and the first driving device drives the mold conveying chain to drive. The plastic bottle mass production equipment increases the integration level of the mould and the blowing head, realizes the plastic bottle production with one time, high density and mass, greatly improves the production efficiency, and obviously reduces the manufacturing cost of the equipment because the action and the operation of the whole set of mould are finished by only one driving motor.

Drawings

The invention is further described below with reference to the figures and examples.

FIG. 1 is a schematic side view of the plastic bottle mass production facility of the present invention;

FIG. 2 is a schematic perspective view of a mass production facility for plastic bottles according to the present invention;

FIG. 3 is a schematic perspective view of a mold in a mass production facility for plastic bottles according to the present invention;

fig. 4 is a schematic view of the structure of the feeding assembly of the plant for the mass production of plastic bottles according to the invention.

Detailed Description

The invention will be described in detail below with reference to the following drawings:

as shown in fig. 1-4: the plastic bottle mass production equipment comprises a blow molding device, wherein the blow molding device comprises a chain type mold conveying device 100 and a blow molding assembly 200, the chain type mold conveying device 100 comprises a plurality of molds 101 and a first driving device, the molds 101 and the first driving device are arranged in parallel, any two adjacent molds are hinged to each other, so that the molds form a mold conveying chain which can be driven and is formed by the molds, and the first driving device drives the mold conveying chain to drive; the mold 101 is in a strip shape, a plurality of semi-bottle-shaped grooves 102 are formed in the strip-shaped end faces of the front side and the back side of the strip-shaped mold in parallel, the bottle mouth of each semi-bottle-shaped groove is communicated with the top end face of the mold, an exhaust channel 103 communicated to the bottom end face of the mold is arranged at the bottle bottom of each semi-bottle-shaped groove, and any two adjacent molds can be tightly buckled with each other in the transmission process of a mold conveying chain, so that the semi-bottle-shaped grooves on the two adjacent molds can be buckled to form a bottle-shaped cavity; after two adjacent molds are tightly buckled with each other, the top surfaces of the two molds are connected to form a blow molding plane 104, the mold conveying chain has a certain length, so that the plurality of molds arranged in parallel can be tightly buckled with each other pairwise, a blow molding plane with a certain length is formed at the top of the plurality of molds arranged in parallel, and a plurality of blow molding bottle mouths 105 arranged in an array are formed on the blow molding plane; the blow molding assembly 200 comprises an air pump capable of blowing high-temperature gas, a flat plate 201 arranged above the chain type mold conveying device, a plurality of blowing heads 202 arranged at the bottom of the flat plate in an array mode, a lifting mechanism 206 driving the flat plate to move up and down and a second driving device 205 driving the flat plate to move transversely and reciprocally, wherein each blowing head 202 corresponds to each blow molding bottle opening in a one-to-one mode, the air outlet of each blowing head faces towards the blow molding bottle opening 105, the air pump 203 and each blowing head are communicated with each other through a pipeline, the pipeline can be set to be a metal pipe bent repeatedly for heating the gas blown out by the air pump, and a heating element is arranged on the pipeline to heat the gas flowing through the pipeline. The lower part of the blowing head 202 is conical, the middle part is cylindrical, and the upper part of the blowing head is provided with a flange 209 which protrudes outwards and is used for sealing the mouth of the blow molding bottle. When the platen moves down to a dead point, the flange of the blowing head will seal the top of the blow molded neck finish.

The blow molding assembly comprises a frame-shaped flat plate frame 204, the flat plate frame is arranged on the flat plate frame, the second driving device 205 is arranged on the flat plate frame, the flat plate frame is in sliding fit with the flat plate frame, and the lifting mechanism 206 is connected with the flat plate frame and drives the flat plate frame and the flat plate frame to move up and down integrally. The first driving device comprises a driving rotating shaft 106, a driven rotating shaft, two driving gears 107 coaxially arranged on the driving rotating shaft, two driven gears 108 coaxially arranged on the driven rotating shaft and a driving motor 109, wherein a power output shaft of the driving motor is in transmission connection with the driving rotating shaft 106; the left side and the right side of the bottom of each die are respectively provided with a tooth groove 110 which is meshed with the teeth of the gear. The second driving device is an air cylinder, the lifting mechanism is a plurality of screw rod mechanisms, each screw rod mechanism comprises a screw rod and a motor for driving the screw rod to rotate, a threaded hole is formed in the pallet, and the screw rods are vertically arranged and inserted into the threaded holes to be in threaded fit with the threaded holes.

Specifically, still be provided with the feed subassembly on the blowing subassembly, the feed subassembly includes the feed pipe 207 of many root circles cylindric, the array is provided with a plurality of through-holes 208 that link up the dull and stereotyped upper and lower face on the flat board 201, respectively inserts a feed pipe in every through-hole, the bottom mouth of pipe terminal surface of feed pipe is close to or contacts the blowing plane, and sliding fit from top to bottom between every feed pipe and the through-hole, be provided with a plurality of parison holding tanks 111 on the mould side by side, every feed pipe can make the bottom mouth of pipe of feed pipe can dock repeatedly with corresponding parison holding tank notch 111 along with flat board horizontal reciprocating motion. The top end of the supply tube 207 is in communication with a supply of plastic bottle parisons by means of a hose. In particular, the depth of the parison receiving groove should be the same as or slightly less than the height of the plastic bottle parison.

The air pump is characterized by further comprising a controller, wherein the controller is respectively in circuit connection with the driving motor, the air cylinder, the air pump and the screw mechanism, and the controller is used for controlling the driving motor, the air cylinder, the air pump and the screw mechanism to act cooperatively.

The working principle of the plastic bottle mass production equipment of the invention is as follows:

firstly, filling a plastic bottle parison in a feeding pipe, enabling a pipe orifice at the bottom end of the feeding pipe to be in butt joint with a parison accommodating groove opening 111 on a mold by controlling the movement of a flat plate, enabling the plastic bottle parison at the lowest end of the feeding pipe to fall into the parison accommodating groove, continuously moving the flat plate to enable a blowing head to be opposite to the mouth of the plastic bottle parison in the parison accommodating groove, then driving the flat plate to move downwards to insert the blowing head into the plastic bottle parison, enabling the plastic bottle parison to be fixed on the blowing head due to interference fit between the outer diameter of the blowing head and the inner diameter of the mouth of the plastic bottle parison, enabling the bottle parison in the parison accommodating groove to be taken up when the flat plate moves upwards, continuously moving the flat plate transversely to enable the blowing head to be opposite to the mouth of the blow molding bottle, and; the controller controls the air pump to inject the heated high-pressure gas into the plastic bottle parison, the softened plastic plate is gradually stretched and attached to the surface of the cavity of the bottle-shaped cavity, the air pump stops working, the flat plate rises after cooling, the flat plate moves forwards along with the mold conveying chain, and finally when two adjacent molds are mutually separated, the plastic bottle naturally falls off from the molds.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.