阅读说明：本技术 一种内芯悬空滤棒及其制备装置与方法 (Filter rod with suspended inner core and preparation device and method thereof ) 是由 娄中玉 孙庆杰 黄杨 宋俊汉 高鑫 秦昌峰 罗亮 于 2021-08-31 设计创作，主要内容包括：本发明公开了一种内芯悬空滤棒及制备装置与方法,属于烟草制品领域。本发明制备装置包括第一纤维丝束开松装置、第二纤维丝束开松装置、内芯蒸汽固化装置和外芯蒸汽固化装置,所述第一纤维丝束开松装置将第一纤维输入内芯蒸汽固化装置形成内芯,所述第二纤维丝束开松装置将第二纤维输入外芯蒸汽固化装置形成外芯,其特征在于：还包括内芯定位装置,所述内芯定位装置设有中空的内芯管,所述内芯通过内芯管进入外芯蒸汽固化装置,当内芯管在外芯蒸汽固化装置内往复进入和退出时,所述外芯和内芯之间形成间隔的中空区。本发明的滤棒烟气更加均匀柔和,提升了卷烟品质,其制备装置结构简单,成本较低,制备方法简便易行,能够满足大批量生产的要求。(The invention discloses an inner core suspended filter rod and a preparation device and method thereof, and belongs to the field of tobacco products. The preparation device comprises a first fiber tow opening device, a second fiber tow opening device, an inner core steam curing device and an outer core steam curing device, wherein the first fiber tow opening device inputs first fibers into the inner core steam curing device to form an inner core, the second fiber tow opening device inputs second fibers into the outer core steam curing device to form an outer core, and the preparation device is characterized in that: the inner core positioning device is provided with a hollow inner core pipe, the inner core enters the outer core steam curing device through the inner core pipe, and when the inner core pipe enters and exits in the outer core steam curing device in a reciprocating mode, a spaced hollow area is formed between the outer core and the inner core. The smoke of the filter stick is more uniform and soft, the quality of cigarettes is improved, the preparation device is simple in structure and low in cost, the preparation method is simple and easy to implement, and the requirement of mass production can be met.)

1. A filter stick with a suspended inner core comprises an outer core (1) and the inner core (2), and is characterized in that hollow areas (3) are arranged between the outer core (1) and the inner core (2) in the filter stick at intervals, and the outer core (1) and the inner core (2) are fused at the positions where the hollow areas (3) are not arranged.

2. The utility model provides a preparation facilities of unsettled filter rod of inner core, includes that first fiber tow opens device, second fiber tow and opens device, inner core steam curing device and outer core steam curing device, first fiber tow opens the device and inputs first fiber inner core steam curing device formation inner core, second fiber tow opens the device and inputs outer core steam curing device formation outer core, its characterized in that with the second fiber: the inner core steam curing device is characterized by further comprising an inner core positioning device (8), wherein the inner core positioning device (8) is provided with a hollow inner core pipe, the inner core enters the outer core steam curing device through the inner core pipe, and when the inner core pipe enters and exits in the outer core steam curing device in a reciprocating mode, a spaced hollow area is formed between the outer core and the inner core.

3. The device for preparing the filter stick with the suspended inner core according to claim 2, wherein the inner core positioning device (8) is provided with a Venturi tube (9) at the front part and a hollow inner core tube at the rear part, and the inner core enters the inner core tube through the Venturi tube (9).

4. The device for preparing the filter stick with the suspended inner core according to claim 3, wherein the Venturi tube (9) is connected with positive pressure air through an air tube.

5. The device for preparing the inner core suspended filter stick according to claim 2, wherein the inner core steam curing device comprises a first wire catcher (12), an inner core steam curing section (11) and an inner core cooling section (10), and the first fibers enter the first wire catcher (12) and then enter the inner core steam curing section (11) and the inner core cooling section (10) to be cured and cooled respectively.

6. The device for preparing the filter stick with the suspended inner core according to claim 2, wherein the outer core steam curing device comprises a second wire catcher (7) and an outer core forming device, and the second fibers enter the second wire catcher (7) and then enter the outer core forming device to form the outer core.

7. The device for preparing the inner core suspended filter stick according to claim 6, wherein the outer core forming device comprises an outer core cooling section (5) and an outer core steam curing section (6), and a smoke gun is arranged behind the outer core cooling section (5).

8. The apparatus for making an inner core suspended filter rod according to claim 6, wherein the outer core forming apparatus comprises a cooling tobacco pipe section (13) and a steam tobacco pipe section (14).

9. A preparation method of an inner core suspended filter stick is characterized by comprising the following steps: opening and plasticizing agent application of the first fibers, then feeding the first fibers into an inner core steam curing device, curing and cooling the first fibers to form an inner core, and feeding the inner core into an outer core steam curing device through an inner core pipe of an inner core positioning device; opening the second fibers, applying a plasticizer, and then feeding the second fibers into an outer core steam curing device to form an outer core; an inner core pipe of the inner core positioning device enters and exits in the outer core steam curing device in a reciprocating manner, so that a spaced hollow area is formed between the outer core and the inner core; and cooling the inner core and the outer core which form the interval hollow area to obtain a finished filter strip, and slitting the finished filter strip to obtain the filter rod with the suspended inner core.

10. The method for preparing the filter stick with the suspended inner core according to claim 9, wherein when tows are used as the first fiber and the second fiber, the single denier is in the range of 5.0-12den, and the total denier is in the range of 10000-58000 den.

Technical Field

The invention belongs to the field of tobacco products, and particularly relates to an inner core suspended filter rod and a preparation device and method thereof.

Background

At present, with the continuous development of the tobacco industry, the cognition of smokers is increased, and the requirements of reducing harm and tar and the requirements of individual novelty are higher and higher. As for the filter stick used by the cigarette, the hollow filter stick has good novelty, and the coaxial filter stick has the function of smoke graded filtration. However, the hollow filter stick does not have the filtering characteristic and generally needs to be used in a composite mode, meanwhile, the hollow filter stick generally has a cavity effect, and smoke is soft and low in feeling. The inner core and the outer core of the coaxial core filter stick are usually tightly wrapped, so that the mainstream smoke is not fully mixed, and the smoke sense is inconsistent. In the preparation method, the hard inner core or the special-shaped inner core of the coaxial core filter stick is added in a small firmware form, so that the production cost is high and the efficiency is low.

Disclosure of Invention

The invention mainly aims to provide an inner core suspended filter rod and a preparation device and method thereof, and the filter rod has the performance of smoke grading, filtering and mixing while realizing novel appearance characteristics. The preparation device has simple structure, the preparation method is convenient and easy, the production cost is low, and the product quality is stable and reliable.

Specifically, the filter stick with the suspended inner core comprises an outer core 1 and the inner core 2, hollow areas 3 are arranged between the outer core 1 and the inner core 2 in the filter stick at intervals, and the outer core 1 and the inner core 2 are fused at positions without the hollow areas 3.

The invention also discloses a preparation device of the filter stick, which comprises a first fiber tow opening device, a second fiber tow opening device, an inner core steam curing device and an outer core steam curing device, wherein the first fiber tow opening device inputs the first fibers into the inner core steam curing device to form an inner core, the second fiber tow opening device inputs the second fibers into the outer core steam curing device to form an outer core, the preparation device also comprises an inner core positioning device 8, the inner core positioning device 8 is provided with a hollow inner core pipe, the inner core enters the outer core steam curing device through the inner core pipe, and when the inner core pipe enters and exits in the outer core steam curing device in a reciprocating manner, a spaced hollow area is formed between the outer core and the inner core.

Further, the inner core positioning device 8 is provided with a venturi tube 9 at the front part and a hollow inner core tube at the rear part, and the inner core enters the inner core tube through the venturi tube 9.

Further, the venturi tube 9 is connected to positive pressure gas through a gas pipe.

Further, the inner core steam curing device comprises a first wire catcher 12, an inner core steam curing section 11 and an inner core cooling section 10, and the first fibers enter the first wire catcher 12 and then enter the inner core steam curing section 11 and the inner core cooling section 10 to be cured and cooled respectively.

Further, the outer core steam curing device comprises a second fiber catcher 7 and an outer core forming device, and the second fibers enter the second fiber catcher 7 and then enter the outer core forming device to form the outer core.

Further, the outer core forming device comprises an outer core cooling section 5 and an outer core steam curing section 6, and a smoke gun is arranged behind the outer core cooling section 5.

Further, the outer core forming means comprises a cooling pipe section 13 and a steam pipe section 14.

The invention also discloses a preparation method of the filter stick, which comprises the following steps: opening and plasticizing agent application of the first fibers, then feeding the first fibers into an inner core steam curing device, curing and cooling the first fibers to form an inner core, and feeding the inner core into an outer core steam curing device through an inner core pipe of an inner core positioning device; opening the second fibers, applying a plasticizer, and then feeding the second fibers into an outer core steam curing device to form an outer core; an inner core pipe of the inner core positioning device enters and exits in the outer core steam curing device in a reciprocating manner, so that a spaced hollow area is formed between the outer core and the inner core; and cooling the inner core and the outer core which form the interval hollow area to obtain a finished filter strip, and slitting the finished filter strip to obtain the filter rod with the suspended inner core.

Further, when tows are used as the first and second fibers, the single denier is in the range of 5.0 to 12den and the total denier is in the range of 10000-' 58000 den.

The invention has the following beneficial effects: the filter stick with the suspended inner core solves the problems of cavity effect of a hollow filter stick and non-uniform smoke of a coaxial core, the smoke is more uniform and soft, and the sensory quality is optimized, so that the quality of cigarettes is improved. The preparation device has simple structure and low cost, and the preparation method is simple and easy to implement and can meet the requirement of mass production. The shapes of the inner core steam curing devices and the shapes of the inner core tubes of the inner core positioning devices can be designed to form different hollow and inner core shapes, and compared with common coaxial core filter sticks and hollow core filter sticks, the novel and personalized inner core steam curing device has more personalized forms and improves cigarette brand images. Different fiber materials with single denier and total denier can be used according to the requirement, and the equipment is independently opened and molded to meet different interception requirements of the inner core and the outer core.

Drawings

Figure 1 is a schematic axial cross-section of a filter rod of the present invention.

Figure 2 is a schematic axial cross-section of a cigarette made with the filter rod of the present invention.

Figure 3 is a schematic diagram of a filter rod forming method according to the present invention.

Fig. 4 is a schematic view of a filter rod forming method according to the present invention.

The scores in the figures are as follows: 1. an outer core; 2. an inner core; 3. a hollow zone; 4. a tobacco section; 5. an outer core cooling section; 6. an outer core steam curing section; 7. a second wire catcher; 8. an inner core positioning device; 9. a venturi tube; 10. an inner core cooling section; 11. an inner core steam curing section; 12. a first wire catcher; 13. cooling the tobacco pipe section; 14. a steam pipe section.

Detailed Description

The present invention will be described in further detail with reference to the following examples and the accompanying drawings.

One embodiment of the invention aims to prepare a filter rod with a suspended inner core. As shown in figure 1, the filter stick with the suspended inner core comprises an outer core 1, an inner core 2 and hollow areas 3, wherein the hollow areas 3 are arranged between the outer core 1 and the inner core 2 in the filter stick at intervals, and the outer core 1 and the inner core 2 are fused at the part without the hollow areas 3. A cigarette made of the filter tip which is cut into equal sections of the filter stick is shown in figure 2, wherein the cigarette section close to the filter tip is connected with the tobacco section 4 of the cigarette, the inner core 2 is tightly wrapped by the outer core 1 of the cigarette section close to the filter tip to realize the graded filtration of smoke, and the inner core 2 of the cigarette section close to the lip is kept in a suspended coaxial state. The filter has novel appearance when viewed from the lip section of the filter, smoke can be gathered in the hollow area 3 after passing through the smoke section, and the smoke enters the mouth of a smoker after being fully mixed.

The preparation device of the filter stick with the suspended inner core comprises a first fiber tow opening device, a second fiber tow opening device, an inner core steam curing device, an outer core steam curing device and an inner core positioning device 8, wherein the inner core steam curing device comprises a first wire catcher 12, an inner core steam curing section 11 and an inner core cooling section 10, the outer core steam curing device comprises a second wire catcher 7 and an outer core forming device, the front part of the inner core positioning device 8 is provided with a Venturi tube 9, the rear part of the inner core positioning device is a hollow inner core tube, the inner core positioning device 8 repeatedly moves between the inner core steam curing device and the outer core steam curing device, when the inner core positioning device 8 moves towards the outer core steam curing device, the inner core tube at the rear part of the inner core positioning device 8 can enter the outer core forming device of the outer core steam curing device, and when the inner core positioning device 8 leaves the outer core steam curing device, the inner core tube at the rear of the inner core positioning device 8 is withdrawn from the outer core forming device of the outer core steam curing device.

The first fiber tow opening device and the second fiber tow opening device are existing equipment, and the first fiber tow opening device and the second fiber tow opening device are composed of first air opening S1, second air opening S2, third air opening S3, a pre-tensioning roller PT, an output roller V1, an opening roller V2 and an input roller V3, and refer to the figures 3 and 4. The first fiber bundle opening device opens the first fibers and applies plasticizer, the opened first fibers enter the first fiber catcher 12 of the inner core steam curing device, and then enter the inner core steam curing section 11 and the inner core cooling section 10 to be cured and cooled respectively to form inner core filter strips; the inner core filter strip enters an inner core pipe at the rear part of the inner core positioning device 8 through a Venturi tube 9 at the front part of the inner core positioning device 8 and then enters an outer core forming device of the outer core steam curing device from the inner core pipe. The second fiber tow opening device opens the second fiber and applies plasticizing agent, the second fiber enters the second channel fiber catching device 7 of the outer core steam curing device after being opened and applied with plasticizing agent, and then enters the outer core forming device to form an outer core, wherein when the inner core pipe at the rear part of the inner core positioning device 8 enters the outer core forming device, the outer core forms a hollow area between the outer core and the inner core filter rod section in the inner core pipe outside the inner core pipe, and when the inner core pipe at the rear part of the inner core positioning device 8 exits from the outer core forming device, the outer core is fused with the inner core filter rod section entering the outer core forming device from the inner core pipe.

The first and second fibers may be the same type of fiber or different types of fiber, such that the shaped inner and outer cores have the same or different properties. When tows are used for the inner and outer core fibers, the single denier can be in the range of 5.0-12den and the total denier can be in the range of 10000 and 58000 den. In order to maintain the hardness of the inner core and the outer core, the plasticizer generally adopts glyceryl triacetate, and the application amount is 12-20% of the weight of the filter stick.

The cross sections of the inner core steam curing section 11 and the inner core cooling section 10 can be designed according to requirements, so that different cross section shapes of the inner core are realized, and the structural novelty of the end face of the cigarette is improved. The shape of the inner hole of the inner core pipe at the rear part of the inner core positioning device 8 is similar to the shape of the inner core of the filter stick, the size of the inner core pipe is larger than the size of the inner core filter stick, and the shape of the inner core pipe determines the peripheral shape of the hollow area of the filter stick. The cold air used by the inner core cooling section 10 is blown and cooled along the advancing direction of the inner core filter strip, the temperature range can be less than or equal to 6 ℃, and the pressure range can be 0.15 +/-0.03 MPa.

The venturi tube 9 is connected with positive pressure air through an air tube, so that negative pressure is formed at an inlet to actively capture the inner core filter strip, and the positive pressure air in the tube can push the inner core filter strip to move forwards, so that friction between the inner core filter strip and the tube wall is reduced. The positive pressure gas is low-temperature gas, so that the inner core solidification can be accelerated, the inner core filter strip is protected from melting deformation in the outer core steam solidification device, and the centering stability of the inner core is also improved by the circulating gas. Preferably, the positive pressure of the Venturi tube can be 0.10 +/-0.02 MPa, and the temperature range is 8-12 ℃.

As can be seen from the above disclosure, the key of the above equipment is to form a hollow space by the reciprocating motion of the inner core positioning device 8, that is, when the inner core tube of the inner core positioning device 8 enters the outer core forming device, the hollow space starts to be formed between the inner core and the outer core, and the longer the time for the inner core tube to enter the outer core forming device, the longer the formed hollow space; when the inner core tube begins to leave the outer core forming device, the hollow area gradually disappears; when the inner core tube is completely separated from the outer core forming device and is positioned outside the outer core forming device, an inner core and outer core fusion section begins to be formed between the inner core and the outer core, and the inner core is fixed.

As shown in fig. 3, the outer core forming device includes an outer core cooling section 5 and an outer core steam curing section 6, the outer core steam curing section 6 is connected with a second wire catcher 7, the inner core tube reciprocally enters the outer core steam curing section 6 to form spaced hollow regions in the inner core and the outer core, and the inner core and the outer core are cooled by the outer core cooling section 5 after being mixed in the outer core steam curing section 6 to form the finished filter rod. A cigarette gun is arranged behind the outer core cooling section 5, and the finished filter strip is pulled by a cigarette gun cloth belt to enter subsequent cutting equipment. And (3) obtaining a section of inner core suspended filter rod containing the spaced hollow area after subsequently cutting the finished filter rod, wherein each section of the inner core suspended filter rod can be cut into individual inner core suspended filter tips for tipping cigarettes. The cold air used by the outer core cooling section 5 is blown and cooled along the advancing direction of the finished filter strip, the temperature range can be less than or equal to 8 ℃, and the pressure range can be 0.15 +/-0.03 MPa.

As shown in fig. 4, the outer core forming device may also have another implementation manner, that is, the outer core forming device directly comprises a cooling tobacco pipe section 13 and a steam tobacco pipe section 14, the steam tobacco pipe section 14 is connected with the second channel of the silk catching device 7, the inner core pipe reciprocally enters the steam tobacco pipe section 14 to form a spaced hollow space between the inner core and the outer core, and the inner core and the outer core are mixed in the steam tobacco pipe section 14 and then cooled by the cooling tobacco pipe section 13 to form the finished filter rod. The finished filter rod is directly pulled by the cooling tobacco pipe section 13 to enter the subsequent cutting equipment. And (3) obtaining a section of inner core suspended filter rod containing the spaced hollow area after subsequently cutting the finished filter rod, wherein each section of the inner core suspended filter rod can be cut into individual inner core suspended filter tips for tipping cigarettes. The cold air used for cooling the smoke gun section 13 is blown and cooled along the advancing direction of the finished filter strip, the temperature range can be less than or equal to 8 ℃, and the pressure range can be 0.20 +/-0.03 MPa.

Therefore, the preparation method of the inner core suspended filter stick corresponding to the preparation device in fig. 3 comprises the following steps: opening first fibers through a first fiber tow opening device, applying a plasticizer, then entering a first fiber catcher 12, forming an inner core filter strip through an inner core steam curing section 11 and an inner core cooling section 10, and entering an outer core steam curing section 6 through an inner core pipe in reciprocating motion through a Venturi tube 9; at the moment, the second fiber is subjected to opening and plasticizing agent application through a second fiber tow opening device, enters a second fiber catcher 7 and then enters an outer core steam curing section 6; under the action of the inner core pipe which reciprocates, a spaced hollow area is formed between the inner core and the outer core; the inner core and the outer core are mixed in the outer core steam curing section 6 and then cooled by the outer core cooling section 5 to form a finished filter rod, and the finished filter rod is pulled by a cigarette gun and is cut into the filter rod with the suspended inner core by a cutter head.

The preparation method of the inner core suspended filter stick corresponding to the preparation device in figure 4 comprises the following steps: opening first fibers through a first fiber tow opening device, applying a plasticizer, then entering a first fiber catcher 12, forming an inner core filter strip through an inner core steam curing section 11 and an inner core cooling section 10, and entering the inner core filter strip into a steam tobacco pipe section 14 through a Venturi tube 9 in a reciprocating inner core pipe; at the moment, the second fiber is opened by a second fiber tow opening device, applied with a plasticizer, enters a second fiber catcher 7 and then enters a steam tobacco pipe section 14; under the action of the inner core pipe which reciprocates, a spaced hollow area is formed between the inner core and the outer core; the inner core and the outer core are mixed in the steam pipe section 14 and then cooled by the cooling pipe section 13 to form a finished filter rod, and the finished filter rod is directly pulled by the cooling pipe section 13 and is cut into the filter rod with the suspended inner core by the cutter head.

Although the present invention has been described in terms of the preferred embodiment, it is not intended that the invention be limited to the embodiment. Terms such as up, down, left, right, and the like in the embodiments are used only for indicating relative relationships. Any equivalent changes or modifications made without departing from the spirit and scope of the present invention also belong to the protection scope of the present invention. The scope of the invention should therefore be determined with reference to the appended claims.