Automatic air expansion shaft pulling and inserting device of film winding machine

By designing an automatic air shaft insertion and removal device, the automatic extraction of the air shaft and the automatic replacement of the paper tube in the film winding machine are realized. This solves the problems of cumbersome manual operation and safety hazards in the existing technology, improves operating efficiency and safety, and reduces labor intensity and cost.

CN224394197UActive Publication Date: 2026-06-23佛山海阔塑料机械有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
佛山海阔塑料机械有限公司
Filing Date
2025-08-27
Publication Date
2026-06-23

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Patent Text Reader

Abstract

The utility model discloses a kind of air expansion shaft automatic extraction and insertion shaft devices of film winding machine, including film supporting lifting mechanism, paper tube clamping positioning mechanism, shaft extraction mechanism, supporting wheel mechanism and clamping inflation mechanism;Film supporting lifting mechanism is set to the just below of shaft membrane roll to be extracted, and the both sides of film supporting lifting mechanism are oppositely provided with paper tube clamping positioning mechanism;Shaft membrane roll to be extracted includes air expansion shaft, paper tube, which is sleeved on air expansion shaft, and membrane roll, which is wound on paper tube;Shaft extraction mechanism is set to one side of film supporting lifting mechanism, and clamping inflation mechanism is set on shaft extraction mechanism, and supporting wheel mechanism is set between shaft extraction mechanism and film supporting lifting mechanism;Supporting wheel mechanism is connected with the wallboard of winding machine;Flap mechanism is set on film supporting lifting mechanism.The utility model is in the automatic winding process of winding machine, and air expansion shaft of shaft membrane roll to be extracted, transfer of membrane roll and air expansion shaft insertion paper tube are all automatically completed, without manual handling air expansion shaft and membrane roll, safe, efficient, low in cost and stable and reliable in operation.
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Description

Technical Field

[0001] This utility model relates to the technical field of film winding equipment, and in particular to an automatic insertion and removal device for an air shaft of a film winding machine. Background Technology

[0002] Existing film winding machines use a paper tube fitted onto an air shaft to drive the air shaft and achieve film winding. After winding, a forklift is used to lift the film roll and air shaft together and move it to the front of the winding machine. Then, the air shaft needs to be manually pulled out, and the paper tube needs to be manually fitted before lifting it onto the machine platform for the next winding. The process is cumbersome and inefficient. Moreover, the air shaft itself is quite heavy, and the manual pulling of the shaft and the manual fitting of the paper tube are extremely labor-intensive and pose safety hazards.

[0003] Therefore, in order to solve the above problems, it is necessary to develop an automatic insertion and removal device for the air shaft of a film winding machine. Utility Model Content

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0005] An automatic insertion and removal device for an air-expanding shaft of a film winding machine, characterized in that it includes a film lifting mechanism, a paper tube clamping and positioning mechanism, a shaft removal mechanism, a roller support mechanism, and a clamping inflation and deflation mechanism;

[0006] The film lifting mechanism is located directly below the film roll to be pulled out, and paper tube clamping and positioning mechanisms are arranged on both sides of the film lifting mechanism.

[0007] The film roll to be pulled includes an air-expanding shaft, a paper tube sleeved on the air-expanding shaft, and a film roll wound on the paper tube.

[0008] The paper tube clamping and positioning mechanism is used to clamp the paper tube on the film roll to be extracted.

[0009] The shaft-pulling mechanism is located on one side of the film-supporting lifting mechanism. The shaft-pulling mechanism is equipped with a clamping inflation / deflation mechanism. A roller support mechanism is provided between the shaft-pulling mechanism and the film-supporting lifting mechanism. The shaft-pulling mechanism is used to pull out the air-expansion shaft on the film roll to be pulled out.

[0010] The roller support mechanism is connected to the wall panel of the winding machine, and a limit mechanism is provided on one side of the roller support mechanism;

[0011] The clamping inflation / deflation mechanism is used to clamp the air-expanding shaft of the film roll to be extracted.

[0012] The membrane lifting mechanism is equipped with a flip-plate mechanism;

[0013] The flipping mechanism is used to transfer the film roll to be pulled from the air expansion shaft to the film transport trolley on one side of the film lifting mechanism.

[0014] Preferably, the shaft pulling mechanism includes a shaft pulling frame, a shaft pulling guide rail, a shaft pulling driver, and a transverse frame;

[0015] The transverse frame is slidably connected to the shaft-pulling machine frame via a shaft-pulling guide rail;

[0016] The shaft-pulling driver is mounted on the transverse frame, and the driving end is connected to the rack mounted on the shaft-pulling frame via a gear.

[0017] The clamping inflation / deflation mechanism is connected to the transverse frame;

[0018] The shaft-pulling frame is located on the side of the wall panel away from the membrane lifting mechanism.

[0019] Preferably, the clamping inflation / deflation mechanism includes a support plate, an inflation head, a V-shaped clamping plate, a clamping seat, a clamping driver, and an inflation head driver;

[0020] The V-shaped clamp, clamp seat, clamping driver and inflation head driver are connected to the transverse frame through the support plate;

[0021] The inflation head is movably mounted on the support plate and is coaxial with the air expansion shaft;

[0022] One end of the inflation head is plugged into the shaft head of the air expansion shaft, and the other end is connected to the drive end of the inflation head driver.

[0023] The V-shaped clamp and clamp seat are located on both sides of the inflation head, and the V-shaped clamp is connected to the driving end of the clamping driver.

[0024] Preferably, the film-supporting lifting mechanism includes a film-supporting frame, a lifting frame, and a lifting drive;

[0025] The lifting frame is located inside the film support frame and is designed for lifting and moving.

[0026] The lifting driver is fixedly connected to the lifting frame, and the driving end is fixedly connected to the film support frame;

[0027] The paper tube clamping and positioning mechanism is arranged opposite to each other on both sides of the lifting frame;

[0028] The flip-up mechanism is located above the lifting frame and is connected to the lifting frame.

[0029] Preferably, the paper tube clamping and positioning mechanism includes a crank driver and cranks arranged opposite each other on the left and right sides;

[0030] The cranks are rotatably connected to the lifting frame via a shaft at one end and a rotatable bearing at the other end.

[0031] The two cranks are connected at their closest ends by gear meshing;

[0032] The crank actuator is located below one of the cranks, and the driving end is rotatably hinged to the middle of the corresponding crank; the crank actuator is fixedly connected to the lifting frame.

[0033] Preferably, the flip-up mechanism includes a flip-up plate and a flip-up plate driver;

[0034] The flap is located above the lifting frame, with the side away from the winding machine being rotatably hinged to the lifting frame, and a flap driver is provided below the other side;

[0035] The flip-plate driver is fixedly connected to the lifting frame, and the driving end is rotatably hinged to the lower surface of the flip-plate.

[0036] Preferably, the roller mechanism includes a roller and a roller drive;

[0037] The roller driver is connected to the wall panel, and the driving end faces upward and is connected to the roller.

[0038] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0039] In the automatic winding process of the rewinder, the extraction of the air shaft of the film roll to be pulled out, the transfer of the film roll, and the insertion of the air shaft into the paper tube are all completed automatically. The process does not require manual handling of the air shaft and film roll, and is safe, efficient, low-cost, and stable and reliable in operation. Attached Figure Description

[0040] Figure 1 This is one of the perspective views of this utility model;

[0041] Figure 2 This is a second perspective view of the present utility model;

[0042] Figure 3 This is the front view of the present invention;

[0043] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of the middle AA section;

[0044] Figure 5 This is the third perspective view of the present utility model;

[0045] Figure 6 for Figure 5 Enlarged view of a portion of point B in the middle;

[0046] The components include: 1. Film lifting mechanism; 2. Paper tube clamping and positioning mechanism; 3. Shaft pulling mechanism; 4. Support roller mechanism; 5. Clamping inflation and deflation mechanism; 6. Film roll to be pulled; 7. Limiting mechanism; 8. Flipping mechanism; 10. Winding machine; 20. Automatic cutting mechanism; 30. Hook shaft mechanism; 40. Air shaft clamping and transferring mechanism; 11. Film support frame; 12. Lifting frame; 13. Lifting driver; 21. Crank; 22. Crank driver; 31. Shaft pulling frame; 32. Shaft pulling guide rail; 33. Shaft pulling driver; 34. Horizontal movement frame; 41. Support roller; 42. Support roller driver; 51. Support plate; 52. Inflation head; 53. V-shaped clamping plate; 54. Clamping seat; 55. Clamping driver; 56. Inflation head driver; 61. Air shaft; 62. Paper tube; 81. Flipping plate; 82. Flipping plate driver; 101. Wall panel. Detailed Implementation

[0047] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0048] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," "up," "down," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0050] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0051] like Figure 1-6 As shown, an automatic insertion and removal device for an air shaft 61 of a film winding machine includes a film lifting mechanism 1, a paper tube clamping and positioning mechanism 2, a shaft removal mechanism 3, a roller support mechanism 4, and a clamping inflation and deflation mechanism 5.

[0052] The film lifting mechanism 1 is located directly below the film roll 6 to be pulled out, and paper tube clamping and positioning mechanisms 2 are arranged on opposite sides of the film lifting mechanism 1.

[0053] The film roll 6 to be pulled out includes an air-expanding shaft 61, a paper tube 62 sleeved on the air-expanding shaft 61, and a film roll 63 wound on the paper tube 62.

[0054] The paper tube clamping and positioning mechanism 2 is used to clamp the paper tube 62 on the shaft film roll 6 to be pulled out;

[0055] The shaft-pulling mechanism 3 is located on one side of the film-supporting lifting mechanism 1. The shaft-pulling mechanism 3 is equipped with a clamping inflation / deflation mechanism 5. A roller support mechanism 4 is provided between the shaft-pulling mechanism 3 and the film-supporting lifting mechanism 1. The shaft-pulling mechanism 3 is used to pull out the air-expansion shaft 61 on the film roll 6 to be pulled out.

[0056] The roller support mechanism 4 is connected to the wall plate 101 of the winding machine 10, and a limit mechanism 7 is provided on one side of the roller support mechanism 4;

[0057] The clamping inflation / deflation mechanism 5 is used to clamp the air-expanding shaft 61 of the film roll 6 to be extracted.

[0058] The membrane lifting mechanism 1 is equipped with a flipping mechanism 8;

[0059] The flipping mechanism 8 is used to transfer the film roll 6 to be extracted from the air expansion shaft 61 to the film transport trolley (not shown in the figure) on one side of the film support lifting mechanism 1.

[0060] In this embodiment, the working steps are as follows:

[0061] Step 1 (lifting the film roll 6 to be pulled): The film roll 6 to be pulled, which has been wound up, is moved to the top of the film lifting mechanism 1 under the action of the winding machine 10. After it is in place, the automatic cutting mechanism 20 of the winding machine 10 cuts the film; then the film lifting mechanism 1 moves to raise the film roll 6 to be pulled.

[0062] Step 2 (Clamping and venting the air shaft 61 of the film roll to be pulled): After the film roll to be pulled is raised to the set height, the clamping inflation and deflation mechanism 5 is activated to clamp the air shaft 61 of the film roll to be pulled and to vent and retract the air shaft 61.

[0063] Step 3 (Pulling out the shaft): The clamping inflation and deflation mechanism 5 keeps the air shaft 61 clamped, and then the shaft pulling mechanism 3 is activated, driving the clamping inflation and deflation mechanism 5 to pull the air shaft 61 out of the paper tube 62 of the film roll 6 to be pulled out. At the same time, the support roller mechanism 44 is activated to lift up and support the air shaft 61 until the air shaft 61 is completely pulled out.

[0064] Step 4 (Transfer of film roll 63): The film lifting mechanism 1 is activated, causing the film roll 6 to be pulled down to the position. The external film transport trolley is pushed to the front of the film lifting mechanism 1 by the operator. Then the flipping mechanism 8 on the film lifting mechanism 1 is activated. Then the film roll 63 automatically rolls down onto the film transport trolley and is transported away by the operator. The unloading of film roll 63 is completed.

[0065] During the above steps one to four, the rewinder 10 already has another air shaft 61 that has been inserted into the paper tube 62; and the rewinder 10 puts it into the rewinding station through the hook mechanism 30, and the film is wound around the paper tube 62 of the air shaft 61; then the film roll 6 to be drawn off is unloaded and drawn off at the same time the next film roll 63 is wound.

[0066] Step Six (Insert next air shaft 61 into paper tube 62): Then, manually place the spare paper tube 62 on the film lifting mechanism 1. After positioning, the paper tube clamping and positioning mechanism 2 will clamp the spare paper tube 62. Then, the film lifting mechanism 1 will automatically rise to the predetermined position. Then, the shaft pulling mechanism 3 will reverse its movement, driving the clamping inflation and deflation mechanism 5 to insert the air shaft 61 into the spare paper tube 62. During the insertion process, the roller mechanism 4 will descend.

[0067] Step 7 (Inflating the air shaft 61 and inserting the paper tube 62): After the air shaft 61 is inserted into place, the clamping inflation and deflation mechanism 5 inflates the air shaft 61 with compressed air to make it expand, and the spare paper tube 62 tightly fits the air shaft 61; after inflation is completed, the paper tube clamping and positioning mechanism 2 is released and moves away from the air shaft 61; then the film lifting mechanism 1 descends, and the paper tube clamping and positioning mechanism is released;

[0068] The spare air shaft 61 from steps six and seven above is transferred to the winding machine 10 by the air shaft clamping and conveying mechanism 40 of the winding machine 10 to wait for use in the next winding cycle;

[0069] In the above structure, during the automatic winding process of the rewinder 10, the extraction of the air shaft 61 of the film roll 6 to be drawn out, the transfer of the film roll 63, and the insertion of the air shaft 61 into the paper tube 62 are all completed automatically. The process does not require manual handling of the air shaft 61 and the film roll 63, and is safe, efficient, low-cost, and stable and reliable in operation.

[0070] Furthermore, such as Figure 1 , 2 As shown in Figures 5 and 6, the shaft pulling mechanism 3 includes a shaft pulling frame 31, a shaft pulling guide rail 32, a shaft pulling driver 33, and a transverse frame 34.

[0071] The transverse frame 34 is slidably connected to the shaft-pulling frame 31 via the shaft-pulling guide rail 32 for transverse movement.

[0072] The shaft-pulling driver 33 is mounted on the transverse frame 34, and the driving end is connected to the rack mounted on the shaft-pulling frame 31 via a gear.

[0073] The clamping inflation / deflation mechanism 5 is connected to the transverse frame 34;

[0074] The shaft-pulling frame 31 is located on the side of the wall panel 101 away from the film-supporting lifting mechanism 1.

[0075] In this embodiment, when the shaft is pulled out, the film lifting mechanism 1 lifts the film roll 6 to be pulled out, and the paper tube clamping and positioning mechanism 2 on the film lifting mechanism 1 clamps both ends of the paper tube 62. At the same time, the roller support mechanism 4 is raised, and the air-filling and de-filling mechanism 5 clamps the air shaft 61 and connects it to the shaft head of the air shaft 61; then the air shaft 61 deflates and shrinks.

[0076] Then the shaft puller 33 is activated, driving the transverse frame 34 to move laterally away from the film lifting mechanism 1, thereby driving the clamped air shaft 61 to be pulled out from the paper tube 62 of the film roll 6 to be pulled out, until the air shaft 61 is completely pulled out.

[0077] Conversely, when inserting the shaft, the film lifting mechanism 1 clamps the paper tube 62 and raises it to the set position. Then, the shaft pull-out driver 33 drives in the opposite direction to insert the air shaft 61 into the paper tube 62 (when the end of the air shaft 61 close to the paper tube 62 is inserted into the paper tube 62, the roller support mechanism 4 resets). After insertion, the inflation head 52 of the clamping inflation and deflation mechanism 5 is inserted into the shaft head of the air shaft 61. The inflation solenoid valve is activated, and the inflation head 52 inflates the air shaft 61 with compressed air to make it expand. The paper tube 62 tightly fits the air shaft 61, thereby realizing the insertion and removal of the air shaft 61.

[0078] Furthermore, such as Figure 1 , 5 As shown in Figures 6 and 7, the clamping inflation / deflation mechanism 5 includes a support plate 51, an inflation head 52, a V-shaped clamping plate 53, a clamping seat 54, a clamping driver 55, and an inflation head driver 56.

[0079] The V-shaped clamp 53, clamp 54, clamping driver 55 and inflation head driver 56 are connected to the transverse frame 34 via the support plate 51.

[0080] The inflation head 52 is movably mounted on the support plate 51 and is coaxial with the air expansion shaft 61.

[0081] One end of the inflation head 52 is plugged into the shaft head of the air shaft 61, and the other end is connected to the drive end of the inflation head driver 56.

[0082] The V-shaped clamp 53 and the clamp seat 54 are disposed on both sides of the inflation head 52, and the V-shaped clamp 53 is connected to the driving end of the clamping driver 55.

[0083] In this embodiment, when the film roll 6 to be pulled out is at a set height, the clamping driver 55 is driven to push the V-shaped clamp 53 to clamp the shaft head, and then the inflation head driver 56 pushes the inflation head 52 to insert into the air nozzle inside the shaft head of the air shaft 61, thereby realizing the air shaft 61 deflation and contraction, which makes it easy to pull out the air shaft 61 from the film roll 6 to be pulled out; conversely, when pulling out the shaft, the air shaft 61 can be inserted into the paper tube 62 and the air shaft 61 can be inflated.

[0084] Furthermore, such as Figure 1 , 2 As shown in Figures 3 and 4, the film support lifting mechanism 1 includes a film support frame 11, a lifting frame 12, and a lifting drive 13;

[0085] The lifting frame 12 is installed inside the film support frame 11 for lifting and moving.

[0086] The lifting driver 13 is fixedly connected to the lifting frame 12, and the driving end is fixedly connected to the film support frame 11;

[0087] The paper tube clamping and positioning mechanism 2 is disposed opposite to each other on both sides of the lifting frame 12;

[0088] The flip-plate mechanism 8 is located above the lifting frame 12 and is connected to the lifting frame 12.

[0089] In this embodiment, the lifting driver 13 drives the lifting frame 12, the paper tube clamping and positioning mechanism 2 and the flipping mechanism 8 to rise and fall relative to the film support frame 11, thereby realizing the lifting and lowering of the film roll 6 to be pulled out, the insertion and removal of the air shaft 61 and the clamping of the paper tube 62.

[0090] Furthermore, such as Figure 1 , 2 As shown in Figure 3, the paper tube clamping and positioning mechanism 2 includes a crank driver 22 and cranks 21 arranged opposite to each other on the left and right sides; one end of the cranks 21 that is close to each other is rotatably connected to the lifting frame 12 through a rotating shaft, and the other end is provided with a rotatable bearing (not shown in the figure);

[0091] The two cranks 21 are connected by gear meshing at their closest ends;

[0092] The crank drive 22 is located below one of the cranks 21, and the drive end is rotatably hinged to the middle of the corresponding crank 21; the crank drive 22 is fixedly connected to the lifting frame 12.

[0093] In this embodiment, the crank 21 is driven by the crank driver 22, causing the crank 21 to rotate around the pivot. Due to the meshing gear, the other crank 21 rotates synchronously, thereby clamping the paper tube 62 placed on the flip plate mechanism 8.

[0094] Furthermore, such as Figure 1 , 2 As shown in Figure 4, the flip mechanism 8 includes a flip plate 81 and a flip plate driver 82;

[0095] The flap 81 is located above the lifting frame 12, and is rotatably hinged to the lifting frame 12 on the side away from the winding machine 10, while a flap driver 82 is provided on the lower side of the other side.

[0096] The flip-plate driver 82 is fixedly connected to the lifting frame 12, and the driving end is rotatably hinged to the lower surface of the flip-plate 81.

[0097] In this embodiment, the flip plate 81 is pushed by the flip plate driver 82 to switch between a horizontal state and an inclined state, so that the completed film roll 63 can be transferred from the flip plate 81 to the external film transport trolley without manual intervention, which is efficient and reliable.

[0098] Furthermore, such as Figure 5 As shown, in order to ensure that the air shaft 61 remains horizontal during the insertion and withdrawal process and improve the reliability of the insertion and withdrawal shaft, the roller support mechanism 4 includes a roller support 41 and a roller support driver 42; the roller support driver 42 is connected to the wall panel 101, and the driving end is upward and connected to the roller support 41.

[0099] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model patent.

Claims

1. An automatic insertion and removal device for an air-expanding shaft of a film winding machine, characterized in that, It includes a film lifting mechanism, a paper tube clamping and positioning mechanism, a shaft pulling mechanism, a roller support mechanism, and a clamping inflation and deflation mechanism; The film lifting mechanism is located directly below the film roll to be pulled out, and paper tube clamping and positioning mechanisms are arranged on both sides of the film lifting mechanism. The film roll to be pulled includes an air-expanding shaft, a paper tube sleeved on the air-expanding shaft, and a film roll wound on the paper tube. The paper tube clamping and positioning mechanism is used to clamp the paper tube on the film roll to be extracted. The shaft-pulling mechanism is located on one side of the film-supporting lifting mechanism. The shaft-pulling mechanism is equipped with a clamping inflation / deflation mechanism. A roller support mechanism is provided between the shaft-pulling mechanism and the film-supporting lifting mechanism. The shaft-pulling mechanism is used to pull out the air-expansion shaft on the film roll to be pulled out. The roller support mechanism is connected to the wall panel of the winding machine, and a limit mechanism is provided on one side of the roller support mechanism; The clamping inflation / deflation mechanism is used to clamp the air-expanding shaft of the film roll to be extracted. The membrane lifting mechanism is equipped with a flip-plate mechanism; The flipping mechanism is used to transfer the film roll to be pulled from the air expansion shaft to the film transport trolley on one side of the film lifting mechanism.

2. The automatic insertion and removal device for the air shaft of a film winding machine according to claim 1, characterized in that, The shaft pulling mechanism includes a shaft pulling frame, a shaft pulling guide rail, a shaft pulling driver, and a transverse frame; The transverse frame is slidably connected to the shaft-pulling machine frame via a shaft-pulling guide rail; The shaft-pulling driver is mounted on the transverse frame, and the driving end is connected to the rack mounted on the shaft-pulling frame via a gear. The clamping inflation / deflation mechanism is connected to the transverse frame; The shaft-pulling frame is located on the side of the wall panel away from the membrane lifting mechanism.

3. The automatic insertion and removal device for the air shaft of a film winding machine according to claim 2, characterized in that, The clamping inflation / deflation mechanism includes a support plate, an inflation head, a V-shaped clamp, a clamping seat, a clamping driver, and an inflation head driver. The V-shaped clamp, clamp seat, clamping driver and inflation head driver are connected to the transverse frame through the support plate; The inflation head is movably mounted on the support plate and is coaxial with the air expansion shaft; One end of the inflation head is plugged into the shaft head of the air expansion shaft, and the other end is connected to the drive end of the inflation head driver. The V-shaped clamp and clamp seat are located on both sides of the inflation head, and the V-shaped clamp is connected to the driving end of the clamping driver.

4. The automatic insertion and removal device for the air shaft of a film winding machine according to claim 1, characterized in that, The film support lifting mechanism includes a film support frame, a lifting frame, and a lifting drive; The lifting frame is located inside the film support frame and is designed for lifting and moving. The lifting driver is fixedly connected to the lifting frame, and the driving end is fixedly connected to the film support frame; The paper tube clamping and positioning mechanism is arranged opposite to each other on both sides of the lifting frame; The flip-up mechanism is located above the lifting frame and is connected to the lifting frame.

5. The automatic insertion and removal device for the air shaft of a film winding machine according to claim 4, characterized in that, The paper tube clamping and positioning mechanism includes a crank driver and cranks arranged opposite each other on the left and right sides; The cranks are rotatably connected to the lifting frame via a shaft at one end and a rotatable bearing at the other end. The two cranks are connected at their closest ends by gear meshing; The crank actuator is located below one of the cranks, and the driving end is rotatably hinged to the middle of the corresponding crank; the crank actuator is fixedly connected to the lifting frame.

6. The automatic insertion and removal device for the air shaft of a film winding machine according to claim 4, characterized in that, The flip-up mechanism includes a flip-up plate and a flip-up plate driver; The flap is located above the lifting frame, with the side away from the winding machine being rotatably hinged to the lifting frame, and a flap driver is provided below the other side; The flip-plate driver is fixedly connected to the lifting frame, and the driving end is rotatably hinged to the lower surface of the flip-plate.

7. The automatic insertion and removal device for the air shaft of a film winding machine according to claim 1, characterized in that, The roller support mechanism includes a roller and a roller drive; The roller driver is connected to the wall panel, and the driving end faces upward and is connected to the roller.