A bottle mouth cap sleeve heat shrinkage device

Abstract

The application discloses a bottle mouth cap sleeve heat shrinkage equipment, comprising: a heating device, the heating device is installed in the first rack; air supply device, the air supply device is arranged above the heating device; the pressure top conveyor, the second rack on the pressure top conveyor is arranged between the heating device; first air outlet and second air outlet, the first air outlet and the second air outlet are arranged below the heating device, and the first air outlet and the second air outlet are arranged according to the pipeline trend. The application is provided with the first air outlet and the second air outlet, so that the air is uniformly blown out, the shrinkage uniformity is good, the glue cap can be prevented from being wrinkled and uneven in height caused by upward deviation during shrinkage, meanwhile, the glue cap can be better attached to the bottle neck, and the sealing property of the glue cap is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of heat shrinkage equipment, and particularly relates to a bottle mouth cap sleeve heat shrinkage equipment. BACKGROUND

[0002] Red wine, white wine, soy sauce, vinegar and the like on the market are basically sealed by using glue caps made of heat shrinkable PVC (polyvinyl chloride) and heat shrinkable PET (polyethylene terephthalate) and the like to perform packaging operation. Heat shrinkage equipment is used when packaging. There are many types of heat shrinkage equipment used on the market at present, but the shrinkage uniformity is poor, and the glue cap is prone to run up and deviate upward during shrinkage, causing the glue cap to wrinkle and be uneven in height. When a pressing top structure is used to solve the foregoing problems, the pressing top structure is generally made of metal material, which often causes scratches on the top of the glue cap during operation, affecting the appearance. At the same time, since the bottle neck is thinner than the bottle cap, the glue cap is prone to shrinkage unevenly at the bottle neck, and cannot be completely attached to the bottle neck, so that the sealing effect of the glue cap is greatly reduced. SUMMARY

[0003] In view of the defects or deficiencies of the prior art, the technical problem to be solved by the application is to provide a bottle mouth cap sleeve heat shrinkage equipment.

[0004] To solve the foregoing technical problem, the application is implemented by the following technical scheme:

[0005] The application provides a bottle mouth cap sleeve heat shrinkage equipment, which comprises:

[0006] A heating device is installed in the first rack.

[0007] An air supply device is arranged above the heating device.

[0008] A pressing top conveyor is arranged between the heating devices.

[0009] A first air outlet and a second air outlet are arranged below the heating devices, and the first air outlet and the second air outlet are arranged according to the flow line.

[0010] Optionally, the bottle mouth cap sleeve heat shrinkage equipment comprises a first air outlet, which comprises a plurality of hole-shaped air outlets arranged in a honeycomb shape.

[0011] Optionally, the bottle mouth cap sleeve heat shrinkage equipment described above, wherein the first air outlet comprises a first section and a second section arranged continuously, wherein the air outlet angle of the first section relative to the pipeline direction is greater than 90°, and the air outlet angle of the second section relative to the pipeline direction is less than 90°; or the air outlet angle of the first section relative to the pipeline direction is less than 90°, and the air outlet angle of the second section relative to the pipeline direction is greater than 90°.

[0012] Optionally, the bottle mouth cap sleeve heat shrinkage equipment described above, wherein the single opening area of the first air outlet is 1mm 2 -20cm 2 , and the opening density of the first air outlet is greater than 10%.

[0013] Optionally, the bottle mouth cap sleeve heat shrinkage equipment described above, wherein the second air outlet comprises a duckbill air outlet, and the angle between the plane where the second air outlet is located and the horizontal plane is 0-80°, wherein the second air outlet can be inclined upward along the horizontal plane, can be inclined downward along the horizontal plane, or can be arranged parallel to the horizontal plane.

[0014] Optionally, the bottle mouth cap sleeve heat shrinkage equipment described above, wherein the second air outlet has a single opening area greater than 1mm 2 and less than 20cm 2 .

[0015] Optionally, the bottle mouth cap sleeve heat shrinkage equipment described above, wherein the pressure top conveyor comprises a pressure top chain mounted on the second rack.

[0016] Optionally, the bottle mouth cap sleeve heat shrinkage equipment described above, wherein the pressure top chain is made of metal or ceramic material.

[0017] Optionally, the bottle mouth cap sleeve heat shrinkage equipment described above, wherein the pressure top conveyor further comprises a driving wheel and a driven wheel, the driving wheel is installed at the first end of the second rack, and the driven wheel is installed at the second end of the second rack, wherein the pressure top chain is installed on the driving wheel and the driven wheel.

[0018] Optionally, the bottle mouth cap sleeve heat shrinkage equipment described above, wherein the pressure top conveyor further comprises a pivot assembly, an adjusting screw, and an adjusting hand wheel,

[0019] wherein the first end of the pivot assembly is installed on the heating device, and the second end of the pivot assembly is installed on the second rack;

[0020] the adjusting screw passes through the first rack and is connected with the rotation position of the pivot assembly;

[0021] The adjusting hand wheel is mounted at the end of the adjusting screw rod;

[0022] By adjusting the adjusting hand wheel, the adjusting screw rod rotates under the driving action of the adjusting hand wheel, which drives the pivot assembly to stretch or contract.

[0023] Optionally, the bottle mouth cap sleeve heat shrinkage equipment described above, wherein the pressure top chain is a chain plate conveyor belt, and a plastic gasket is further mounted on the chain plate of the pressure top chain in contact with the bottle mouth cap sleeve.

[0024] Optionally, the bottle mouth cap sleeve heat shrinkage equipment described above, wherein the thickness of the plastic gasket is 2-50 mm, and / or the material of the plastic gasket is rubber material, polytetrafluoroethylene, nylon, polypropylene or polyethylene.

[0025] Optionally, the bottle mouth cap sleeve heat shrinkage equipment described above, wherein the air supply device delivers the heat generated by the heating device to the first air outlet and the second air outlet, so as to transfer the heat to the bottle mouth cap sleeve surface to shrink and tightly wrap the bottle mouth.

[0026] Optionally, the bottle mouth cap sleeve heat shrinkage equipment described above, wherein the heating device is an air heater, a resistance wire heater, an infrared heater, a heavy oil heater or a steam generator.

[0027] Optionally, the bottle mouth cap sleeve heat shrinkage equipment described above, wherein the first rack is erected on a stacker crane.

[0028] Compared with the prior art, the present application has the following technical effects:

[0029] The first air outlet and the second air outlet are provided in the present application, so that the air is evenly blown to achieve good shrinkage uniformity, and the problem of the cap running upward and causing the cap to wrinkle and be uneven in height during shrinkage can be avoided, and the cap can be better attached to the bottle neck to increase the sealing property of the cap. In addition, due to the provision of the pressure top conveyor, the problem of the cap running upward during heat shrinkage can be effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0030] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments made with reference to the accompanying drawings:

[0031] Figure 1 : Structure of the bottle mouth cap sleeve heat shrinkage equipment according to an embodiment of the present application Figure One ;

[0032] Figure 2 : Structure of the bottle mouth cap sleeve heat shrinkage equipment according to an embodiment of the present application Figure Two ;

[0033] Figure 3 The layout of the first air outlet and the second air outlet in an embodiment of the present application;

[0034] Figure 4 The front view of the first air outlet in an embodiment of the present application;

[0035] Figure 5 The sectional view of the first air outlet in an embodiment of the present application;

[0036] Figure 6 The partial enlarged view of the structure shown in Figure 5 ;

[0037] Figure 7 The front view of the second air outlet in an embodiment of the present application;

[0038] Figure 8 The sectional view of the second air outlet in an embodiment of the present application;

[0039] Figure 9 The partial enlarged view of the structure shown in Figure 8 ;

[0040] Figure 10 The front view of the pressing top chain in an embodiment of the present application;

[0041] Figure 11 The sectional view of the pressing top chain in an embodiment of the present application;

[0042] Figure 12 The structural schematic diagram of the second air outlet in an embodiment of the present application Figure One ;

[0043] Figure 13 The structural schematic diagram of the second air outlet in an embodiment of the present application Figure Two .

[0044] Wherein, the air supply device-1; the first rack-2; the heating device-3; the adjusting screw-4; the adjusting hand wheel-5; the passive wheel-6; the second rack-7; the second air outlet-8; the first air outlet-9; the pressing top chain-10; the driving wheel-11, the plastic gasket-12. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be described clearly and completely below with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0046] As shown in Figure 1 andFigure 2 As shown in the figure, a bottle mouth cap sleeve heat shrinkage device comprises:

[0047] A heating device 3 is installed inside the first rack 2;

[0048] An air supply device 1 is arranged above the heating device 3;

[0049] A compression conveyor is arranged between the heating devices 3 on the second rack 7;

[0050] A first air outlet 9 and a second air outlet 8 are arranged below the heating device 3, and the first air outlet 9 and the second air outlet 8 are arranged in a pipeline manner, wherein the first air outlet 9 and the second air outlet 8 can be arranged in sequence in the pipeline manner, or the second air outlet 8 and the first air outlet 9 can be arranged in sequence in the pipeline manner. In the present application, the pipeline manner does not limit the front-rear order of the arrangement positions of the first air outlet 9 and the second air outlet 8.

[0051] In the present embodiment, the arrangement of the first air outlet 9 and the second air outlet 8 makes the air outlet uniform, thereby improving the shrinkage uniformity, avoiding the wrinkling and unevenness of the rubber cap caused by the upward deviation of the rubber cap during shrinkage, and better fitting the rubber cap with the bottle neck, thereby increasing the sealing property of the rubber cap.

[0052] In the present embodiment, the first rack 2 is arranged on a stacker. Further preferably, universal adjusting wheels are installed at the bottom of the stacker, and the arrangement of the stacker enables the adjustment of the direction and height of the device in the pipeline environment when the present embodiment is installed on the pipeline.

[0053] The air supply device 1 includes but is not limited to a fan and the like.

[0054] The heating device 3 includes but is not limited to an air heater, a resistance wire heater, an infrared heater, a heavy oil heater, a steam generator and the like. Further preferably, the heating device 3 is preferably provided with two in a symmetrical manner.

[0055] In the present embodiment, the air supply device 1 delivers the heat generated by the heating device 3 to the first air outlet 9 and the second air outlet 8, thereby transferring the heat to the surface of the bottle mouth cap sleeve to shrink and tightly wrap the bottle mouth.

[0056] In the present embodiment, the compression conveyor has a height adjusting function, and specifically, reference is made to Figure 2 As shown in the figure, the compression conveyor further comprises a pivot assembly, an adjusting screw 4 and an adjusting hand wheel 5,

[0057] The first end of the pivot assembly is mounted on the heating device 3, and the second end of the pivot assembly is mounted on the second frame 7.

[0058] The adjusting screw 4 passes through the first frame 2 and is connected to the rotational position of the pivot assembly;

[0059] The adjusting handwheel 5 is installed at the end of the adjusting screw 4;

[0060] By adjusting the adjusting handwheel 5, the adjusting screw 4 rotates under the driving action of the adjusting handwheel 5. This rotation causes the pivot assembly to stretch or contract, thereby changing the height of the pressure chain 10 and ultimately improving the shrinkage effect of the heat shrink sealing cap.

[0061] Specifically, such as Figures 3 to 6 As shown, the first air outlet 9 includes: a guide air outlet, which includes: a plurality of perforated air outlets arranged in a honeycomb pattern.

[0062] The first air outlet 9 is arranged at a specific angle to the direction of bottle movement. Specifically, the first air outlet 9 includes a first segment L1 and a second segment L2 that are continuously arranged. The angle λ1 of the first segment L1 relative to the direction of the flow line is greater than 90°, and the angle λ2 of the second segment L2 relative to the direction of the flow line is less than 90°. More preferably, the angle λ1 of the first segment L1 relative to the direction of the flow line is 90°-150°, and the angle λ2 of the second segment L2 relative to the direction of the flow line is 30°-90°. More preferably, the air outlet angle λ1 of the first segment L1 relative to the direction of the assembly line is 105°-145°, and the air outlet angle λ2 of the second segment L2 relative to the direction of the assembly line is 45°-75°; more preferably, the air outlet angle λ1 of the first segment L1 relative to the direction of the assembly line is 120°-145°, and the air outlet angle λ2 of the second segment L2 relative to the direction of the assembly line is 45°-60°.

[0063] Optionally, the first air outlet 9 is arranged at a specific angle with respect to the direction of bottle travel, in particular, the first air outlet 9 comprises a first section L1 and a second section L2 arranged in succession, wherein the air outlet angle λ1 of the first section L1 with respect to the flow line is less than 90°, and the air outlet angle λ2 of the second section L2 with respect to the flow line is greater than 90°. The air outlet angle λ2 of the first section L1 with respect to the flow line is 30°-90°, and the air outlet angle λ1 of the second section L2 with respect to the flow line is 90°-150°. Further preferably, the air outlet angle λ1 of the first section L1 with respect to the flow line is 45°-75°, and the air outlet angle λ2 of the second section L2 with respect to the flow line is 105°-145°; further preferably, the air outlet angle λ1 of the first section L1 with respect to the flow line is 45°-60°, and the air outlet angle λ2 of the second section L2 with respect to the flow line is 120°-145°.

[0064] Further preferably, the single opening area Φ1 of the first air outlet 9 is 1mm 2 -20cm 2 ; and / or, the opening density of the first air outlet 9 is greater than 10%; further preferably, the single opening area Φ1 of the first air outlet 9 is 1mm 2 -19cm 2 ; and / or, the opening density of the first air outlet 9 is greater than 10%; the single opening area Φ1 of the first air outlet 9 is 1mm 2 -18cm 2 ; and / or, the opening density of the first air outlet 9 is greater than 15%; the single opening area Φ1 of the first air outlet 9 is 1mm 2 -16cm 2 ; and / or, the opening density of the first air outlet 9 is greater than 20%; the single opening area Φ1 of the first air outlet 9 is 1mm 2 -15cm 2 ; and / or, the opening density of the first air outlet 9 is greater than 25%; the single opening area Φ1 of the first air outlet 9 is 1mm 2 -15cm 2 ; and / or, the opening density of the first air outlet 9 is greater than 30%; the single opening area Φ1 of the first air outlet 9 is 1mm 2 -10cm 2 ; and / or, the opening density of the first air outlet 9 is greater than 30%; the single opening area Φ1 of the first air outlet 9 is 1mm 2 -5cm 2; and / or, the opening density of the first air outlet 9 is greater than 30%; the purpose of the above setting is to make the air volume more uniform, so that the surface of the bottle cap sleeve is contracted flat, thereby achieving aesthetic and better sealing effect. Wherein, the opening density referred to above refers to the single opening area * the number of openings ÷ [the total length of the first air outlet * the total height of the first air outlet] * 100%, wherein the total length of the first air outlet is the sum of the length of the first section L1 and the length of the second section L2.

[0065] As shown in Figure 3 , Figures 7 to 9 , Figure 12 and Figure 13 , in the present embodiment, the second air outlet 8 comprises a duckbill air outlet, the second air outlet 8 has a third section L3, and the angle λ4 between the plane where the second air outlet 8 is located and the horizontal plane is 0-80°; further preferably, the angle λ4 between the plane where the second air outlet 8 is located and the horizontal plane is 0-70°; further preferably, the angle λ4 between the plane where the second air outlet 8 is located and the horizontal plane is 10-70°; further preferably, the angle λ4 between the plane where the second air outlet 8 is located and the horizontal plane is 10-60°; further preferably, the angle λ4 between the plane where the second air outlet 8 is located and the horizontal plane is 20-60°; further preferably, the angle λ4 between the plane where the second air outlet 8 is located and the horizontal plane is 20-45°; further preferably, the angle λ4 between the plane where the second air outlet 8 is located and the horizontal plane is 30-45°; wherein, as shown in Figure 12 , the second air outlet can be inclined upward along the horizontal plane, as shown in Figure 13 , it can also be inclined downward along the horizontal plane, or it can be arranged parallel to the horizontal plane. The role of the second air outlet 8 is to make the bottom of the bottle cap sleeve contract better, and the air outlet sleeve wraps the bottle mouth more tightly, thereby achieving better sealing.

[0066] Wherein, the single opening area Φ2 of the second air outlet 8 is 1mm 2 -20cm 2 ; further preferably, the single opening area Φ2 of the second air outlet 8 is 2mm 2 -19cm 2 ; further preferably, the single opening area Φ2 of the second air outlet 8 is 3mm 2 -18cm 2 ; further preferably, the single opening area Φ2 of the second air outlet 8 is 4mm 2 -17cm 2 ; further preferably, the single opening area Φ2 of the second air outlet 8 is 5mm 2 -15cm 2 ; further preferably, the single opening area Φ2 of the second air outlet 8 is 6mm2 - 14 cm 2 ; further preferably, the single opening area Φ2 of the second air outlet 8 is 7 mm 2 - 13 cm 2 ; further preferably, the single opening area Φ2 of the second air outlet 8 is 8 mm 2 - 12 cm 2 ; further preferably, the single opening area Φ2 of the second air outlet 8 is 9 mm 2 - 11 cm 2 ; further preferably, the single opening area Φ2 of the second air outlet 8 is 10 mm 2 - 10 cm 2 ; further preferably, the single opening area Φ2 of the second air outlet 8 is 2 cm 2 - 10 cm 2 ; further preferably, the single opening area Φ2 of the second air outlet 8 is 3 cm 2 - 9 cm 2 ; further preferably, the single opening area Φ2 of the second air outlet 8 is 4 cm 2 - 8 cm 2 ; further preferably, the single opening area Φ2 of the second air outlet 8 is 5 cm 2 - 7 cm 2 ; further preferably, the single opening area Φ2 of the second air outlet 8 is 5 cm 2 - 6 cm 2 .

[0067] As shown in Figure 1 , Figure 10 and Figure 11 , the capping conveyor further comprises a capping chain 10 installed on the second frame 7, wherein the second frame 7 is arranged between the heating devices 3.

[0068] In the embodiment, the capping chain 10 is preferably made of metal or ceramic. Through the above arrangement, the flatness of the top of the cap can be ensured during the operation of the embodiment.

[0069] The capping conveyor further comprises a driving wheel 11 and a driven wheel 6, wherein the driving wheel 11 is installed at the first end of the second frame 7, and the driven wheel 6 is installed at the second end of the second frame 7, and the capping chain 10 is installed on the driving wheel 11 and the driven wheel 6. By driving the driving wheel 11, the movement of the capping chain 10 in the direction of the assembly line can be realized.

[0070] The pressure chain 10 is a chain plate type conveying belt. The chain plate conveying belt can press the bottle mouth cap sleeve on the bottle by its own weight, so that the cap sleeve does not run up and cause the cap to be wrinkled.

[0071] The chain plate of the pressure chain 10 in contact with the bottle mouth cap sleeve is further provided with a plastic gasket 12. Figure 11 As shown, the plastic gasket 12 can prevent damage to the top of the bottle mouth cap sleeve during production, and has good temperature resistance and anti-sticking effect to prevent the top of the bottle mouth cap sleeve from being contaminated.

[0072] The thickness of the plastic gasket 12 is 2-50mm; the thickness of the plastic gasket 12 is 5-50mm; the thickness of the plastic gasket 12 is 5-40mm; the thickness of the plastic gasket 12 is 5-30mm; the thickness of the plastic gasket 12 is 5-20mm; the thickness of the plastic gasket 12 is 5-10mm.

[0073] Further preferably, the material of the plastic gasket 12 is rubber material, polytetrafluoroethylene, nylon, polypropylene, polyethylene or other commonly used plastics or rubbers.

[0074] Preferably, the plastic gasket 12 is made of silicone rubber or polytetrafluoroethylene gasket.

[0075] The first air outlet 9 and the second air outlet 8 in the application are provided to make the air outlet uniform, so that the shrinkage uniformity is good, and the cap can be prevented from running up and causing the cap to be wrinkled and uneven during shrinkage. At the same time, the cap can be better fitted with the bottle neck, and the sealing property of the cap is improved. In summary, the application has good market application prospect.

[0076] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0077] In the present application, unless specifically defined and limited otherwise, the "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "on", "above" and "under" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "under", "below" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0078] In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0079] The above embodiments are only used to illustrate the technical solutions of the present application, not limit the present application. The technical solutions of the present application are described in detail with reference to the preferred embodiments. Those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A heat-shrinkable device for bottle caps, characterized in that, include: Heating device, the heating device being installed inside the first frame; An air supply device is disposed above the heating device; A top-pressing conveyor, wherein the second machine of the top-pressing conveyor is installed between the heating devices; A first air outlet and a second air outlet are both located below the heating device, and the first air outlet and the second air outlet are arranged according to the flow line. The area of ​​a single opening in the first air outlet is 1 mm². 2 -20 cm 2 Between these points, the opening density of the first air outlet is greater than 10%; The first air outlet includes a first section and a second section that are continuously arranged. The first section has an air outlet angle greater than 90° relative to the direction of the flow line, and the second section has an air outlet angle less than 90° relative to the direction of the flow line. The second air outlet includes a duckbill-shaped air outlet, wherein the duckbill-shaped air outlets are arranged linearly, and the plane containing the second air outlet makes an angle of 0-80° with the horizontal plane; the area of ​​a single opening of the second air outlet is 1 mm². 2 -20 cm 2 between.

2. The bottle cap heat shrinking device according to claim 1, characterized in that, The first air outlet includes: a guide air outlet, which includes: a plurality of perforated air outlets arranged in a honeycomb pattern.

3. The bottle cap heat shrinking device according to claim 1, characterized in that, Alternatively, the angle of the air outlet of the first segment relative to the direction of the assembly line is less than 90°, and the angle of the air outlet of the second segment relative to the direction of the assembly line is greater than 90°.

4. The bottle cap heat shrinking device according to claim 1, characterized in that, The top conveyor includes a top chain mounted on the second frame.

5. The bottle cap heat shrinking device according to claim 4, characterized in that, The top-pressing conveyor further includes a drive wheel and a driven wheel, the drive wheel being installed at the first end of the second frame and the driven wheel being installed at the second end of the second frame, wherein the top-pressing chain is installed on the drive wheel and the driven wheel.

6. The bottle cap heat shrinking device according to claim 4, characterized in that, The pressure chain is made of metal or ceramic materials.

7. The bottle cap heat shrinking device according to claim 1, characterized in that, The top-pressing conveyor also includes: a pivot assembly, an adjusting screw, and an adjusting handwheel. The first end of the pivot assembly is mounted on the heating device, and the second end of the pivot assembly is mounted on the second frame. The adjusting screw passes through the first frame and is connected to the rotational position of the pivot assembly; The adjusting handwheel is mounted on the end of the adjusting screw; By adjusting the adjusting handwheel, the adjusting screw rotates under the driving action of the adjusting handwheel, and this rotation causes the pivot assembly to stretch or contract.

8. The bottle cap heat shrinking device according to any one of claims 4 to 6, characterized in that, The top pressure chain is a chain plate type conveyor belt, and plastic gaskets are also installed on the chain plate that contacts the bottle mouth cap.

9. The bottle cap heat shrinking device according to claim 8, characterized in that, The thickness of the plastic gasket is 2-50mm, and / or the material of the plastic gasket is rubber, polytetrafluoroethylene, nylon, polypropylene, or polyethylene.

10. The bottle cap heat shrinking device according to any one of claims 1 to 7, characterized in that, The air supply device delivers the heat generated by the heating device to the first air outlet and the second air outlet, thereby transferring the heat to the surface of the bottle cap, shrinking and tightly wrapping the bottle mouth.

11. The bottle cap heat shrinking device according to any one of claims 1 to 7, characterized in that, The heating device is an air heater, a resistance wire heater, an infrared heater, a heavy oil heater, or a steam generator.

12. The bottle cap heat shrinking device according to any one of claims 1 to 7, characterized in that, The first frame is mounted on a stacker truck.

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