Paper tube shifting device

Abstract

The utility model relates to a paper tube shifting device. The paper tube shifting device comprises a supporting frame fixedly connected with a wall plate and a conveying assembly installed on the supporting frame. The conveying assembly comprises a synchronous belt assembly, a paper tube pushing mechanism and a guide device; the synchronous belt assembly comprises a driving wheel, a driven wheel, a synchronous belt and a synchronous belt tightness adjusting device; the synchronous belt tightness adjusting device comprises an adjusting block and an adjusting bolt; the paper tube pushing mechanism comprises a sliding plate, an air cylinder, a shifting handle support and a shifting handle. The shifting handle is used for pushing paper tubes; the guide device comprises a slideway fixedly connected with the supporting frame and a third sliding block fixedly connected with the sliding plate, and the third sliding block is in sliding connection with the slideway; the synchronous belt assembly further comprises a speed reducer used for driving the driving wheel to rotate. The driving wheel is in transmission connection with the speed reducer; the paper tube feeding device has the advantages that the synchronous belt, the shifting handle and the guide device are arranged, the synchronous belt drives the shifting handle to shift and feed paper tubes instead of a rodless air cylinder, and the failure rate is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the field of film winding machines, in particular to a paper tube pushing device. BACKGROUND

[0002] At present, when the winding machine of the company pushes the paper tube to the air expansion shaft, a rodless air cylinder is used to push the paper tube, and due to unstable air pressure or air cylinder wear, the phenomenon that the air cylinder cannot push the paper tube to the position exists, which needs to be solved.

[0003] The existing early patent of the company, application number 202111440537.6, name is an automatic winding and transferring device; which discloses the feeding and conveying of the paper tube, and does not disclose in detail how to push the paper tube, actually uses a rodless air cylinder to drive a pushing hand to push the paper tube, which has the above-mentioned problems; when the air cylinder pushes the paper tube, the end face of the paper tube is often burr after impact, which needs to be treated, at the same time, because the pushing hand needs to push the paper tube, it must be suspended and fixed on the support, which will be deformed after receiving the impact force after long-term use, and the pushing hand connecting piece will also be damaged frequently. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a paper tube pushing device, which uses a mechanical structure to replace the original cylinder pushing tube and reduces faults.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A paper tube pushing device, comprising a support frame fixedly connected with a wallboard and a conveying assembly installed on the support frame; the conveying assembly comprises a synchronous belt assembly for providing pushing paper tube power, a paper tube pushing mechanism installed on the synchronous belt assembly, and a guide device installed between the paper tube pushing mechanism and the support frame; the paper tube pushing mechanism comprises a buffer positioning device for preventing the end face of the paper tube from being burr when pushing the paper tube.

[0007] Further, the synchronous belt assembly comprises a driving wheel support frame fixedly connected at one end of the support frame, a driving wheel rotatably connected with the driving wheel support frame, a driven wheel support frame arranged at the other end of the support frame, a driven wheel rotatably connected with the driven wheel support frame, and a synchronous belt arranged between the driving wheel and the driven wheel; the paper tube pushing mechanism is arranged on the synchronous belt.

[0008] Further, the synchronous belt assembly further comprises a synchronous belt tightness adjusting device for adjusting the tightness of the synchronous belt.

[0009] Further, the synchronous belt tightness adjusting device comprises a threaded hole and a strip hole provided on the passive wheel support frame, an adjusting block provided on the slide support frame, and an adjusting bolt threadedly connected with the threaded hole of the passive wheel support frame; the adjusting bolt is rotationally connected with the adjusting block; the strip hole is arranged along the length direction of the synchronous belt; the slide support frame is provided with a first threaded hole, and the passive wheel support frame is fixed on the slide support frame through the first threaded hole by the adjusting bolt passing through the strip hole; the passive wheel support frame is provided with a passive wheel bearing; the passive wheel is installed on the passive wheel bearing through a passive wheel shaft.

[0010] Further, the paper pushing tube mechanism further comprises a synchronous belt plate fixedly connected with the synchronous belt, a slide plate fixedly connected with the synchronous belt plate, a cylinder support fixedly connected with the slide plate, a cylinder fixedly connected with the cylinder support, a knob support fixedly connected with the output end of the cylinder, and a knob connected with the knob support; the knob is used for pushing the paper tube.

[0011] The slide plate is provided with a second guide rail; the knob support is provided with a second sliding block; the second sliding block is slidingly connected with the second guide rail.

[0012] The synchronous belt plate is arranged on the upper surface of the synchronous belt, the pressing plate is arranged on the lower surface of the synchronous belt, and the synchronous belt plate and the pressing plate are fixed on the synchronous belt by the bolt and the nut.

[0013] Further, the guide device comprises a slide provided with the support frame and a first sliding block provided with the slide plate; the first sliding block is slidingly connected with the slide.

[0014] Further, a limiting device for preventing collision is arranged between the slide support frame and the slide plate; the limiting device comprises an inductive limiting device and a mechanical limiting block; two mechanical limiting blocks are arranged at the two ends of the slide support frame, and are used for avoiding the collision between the slide plate and the synchronous belt at the two ends; the inductive limiting device comprises a travel switch installed at the two ends of the slide support frame; the distance between the two mechanical limiting blocks is greater than the distance between the two travel switches; the travel switches are arranged on the inner side of the mechanical limiting blocks; and the two travel switches are used for detecting the distance of the knob pushing the paper tube on the slide support frame.

[0015] Further, the synchronous belt assembly further comprises a speed reducer for driving the rotation of the driving wheel; the speed reducer is fixed on the support frame; the support frame is provided with a deep groove ball bearing; the driving wheel is fixedly connected with a driving shaft; the driving shaft is rotationally connected with the support frame through the deep groove ball bearing; and the driving shaft is in transmission connection with the speed reducer.

[0016] Further, the knob is provided with a U-shaped open slot; the open width of the open slot is greater than the inner diameter of the paper tube and less than the outer diameter of the paper tube.

[0017] Further, a buffer positioning device is arranged between the handle and the handle support, and the buffer positioning device comprises an oil pressure buffer arranged on the handle support and used for reducing the collision force between the handle and the paper tube, an adjusting screw arranged on the handle support, a third sliding rail fixedly connected with the handle support, a third sliding block in sliding connection with the third sliding rail, and a handle fixing frame fixedly connected with the third sliding block; the handle is fixedly connected with the handle fixing frame, the adjusting screw abuts against one side of the handle fixing frame, and the extending end of the oil pressure buffer abuts against the other side of the handle fixing frame; the handle abuts against the paper tube.

[0018] The utility model discloses beneficial effects are:

[0019] By setting up the synchronous belt, the synchronous belt drives the handle, the handle pushes the paper tube, and the paper tube is conveyed to the mandrel of the winding machine, which replaces the original rodless cylinder and reduces the failure downtime.

[0020] By setting up the synchronous belt tightness adjusting device, when the synchronous belt is elongated due to long-time use, the bolt of the passive wheel support frame is loosened, the adjusting bolt is rotated, the passive wheel support frame is driven to move by the adjusting bolt, and then the position of the passive wheel can be adjusted to tighten the synchronous belt.

[0021] By setting up the limiting device on the slide support, the position of the handle can be detected in time, and the movement track of the handle on the slide support is limited to avoid the collision between the slide plate and the speed reducer.

[0022] By setting up the buffer positioning device on the handle, when the handle contacts the paper tube, soft contact can be realized to avoid the hard contact between the handle and the end face of the paper tube, so that burrs or wrinkles or other defects are avoided on the end face of the paper tube, and the handle is prevented from being deformed or other components from being damaged due to long-time collision with the paper tube. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The utility model discloses a structure schematic diagram;

[0024] Figure 2 The utility model discloses a structure schematic diagram of C; Figure 1

[0025] Figure 3 The utility model discloses an enlarged view of E; Figure 2

[0026] Figure 4 It is the plan view of paper tube pushing mechanism;

[0027] Figure 5 It is the structure schematic left view of passive wheel support frame;​​

[0028] Figure 6 Structure schematic plan view of passive wheel support frame;

[0029] Figure 7 Schematic view of installation of passive wheel;

[0030] Figure 8 Structure schematic view of buffer positioning device;

[0031] Figure 9 Structure schematic view of limiting device.

[0032] Explanation of figure mark:

[0033] 1-paper tube, 2-paper tube storage part, 3-handle, 31-third sliding rail, 32-third sliding block, 33-handle fixing frame, 34-adjusting screw, 35-oil buffer, 4-handle support, 5-second sliding block, 6-second guide rail, 7-cylinder, 8-sliding plate, 9-synchronous belt, 10-driving wheel, 11-driving wheel shaft, 12-reducer, 13-support frame, 81-synchronous belt plate, 82-pressing plate, 83-buffer positioning device, 84-cylinder support, 85-mechanical limiting block, 131-slideway support, 14-slideway, 15-first sliding block, 16-passive wheel, 161-passive wheel support frame, 162-threaded hole, 163-strip hole, 164-passive wheel bearing, 165-passive wheel shaft, 17-adjusting block, 18-adjusting bolt, 19-travel switch. DETAILED DESCRIPTION

[0034] The technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application; 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 other embodiments obtained by the person skilled in the art without making creative efforts fall within the protection scope of the present application.

[0035] Embodiment 1

[0036] As shown in Figures 1-9

[0037] A paper tube pushing device, comprising a support frame 13 fixedly connected with a wallboard, a slideway support 131 fixedly connected with the support frame 13 and a conveying assembly installed on the slideway support 131; the conveying assembly comprises a synchronous belt assembly for providing power for pushing the paper tube 1, a paper tube pushing mechanism installed on the synchronous belt assembly and a guide device installed between the paper tube pushing mechanism and the slideway support 131; the paper tube pushing mechanism is provided with a buffer positioning device 83 for preventing the end face of the paper tube 1 from being damaged by burrs or other components when the paper tube 1 is pushed.​

[0038] As Figures 1-2 shown, the synchronous belt assembly comprises a driving wheel support frame fixedly connected to one end of the slide bracket 131, a driving wheel 10 rotatably connected to the driving wheel support frame, a driven wheel support frame 161 provided at the other end of the slide bracket 131, a driven wheel 16 rotatably connected to the driven wheel support frame 161, and a synchronous belt 9 provided between the driving wheel 10 and the driven wheel 16; the paper pushing tube mechanism is provided on the synchronous belt 9.

[0039] The synchronous belt assembly further comprises a speed reducer 12 for driving the driving wheel 10 to rotate; the speed reducer 12 is fixed on the slide bracket 131, the slide bracket 131 is provided with a deep groove ball bearing, the driving wheel 10 is fixedly connected with a driving shaft 11; the driving shaft 11 is rotatably connected with the slide bracket 131 through the deep groove ball bearing; the driving shaft 11 is in transmission connection with the speed reducer 12. The speed reducer 12 is driven by a motor;

[0040] The driving wheel 10 and the driven wheel 16 are both synchronous wheels, which are adapted to the synchronous belt 9;

[0041] As Figure 1 shown, the paper pushing tube mechanism comprises a synchronous belt plate 81 fixedly connected with the synchronous belt 9, a sliding plate 8 fixedly connected with the synchronous belt plate 81, a cylinder support 84 fixedly connected with the sliding plate 8, a cylinder 7 fixedly connected with the cylinder support 84, a knob support 4 fixedly connected with the output end of the cylinder 7, and a knob 3 connected with the knob support 4; the knob 3 is used for pushing the paper tube 1;

[0042] The sliding plate 8 is provided with a second guide rail 6; the knob support 4 is provided with a second sliding block 5; the second sliding block 5 is in sliding connection with the second guide rail 6;

[0043] The synchronous belt plate 81 is provided on the upper surface of the synchronous belt 9, the pressing plate 82 is provided on the lower surface of the synchronous belt 9, and the synchronous belt plate 81 and the pressing plate 82 are fixed on the synchronous belt 9 by bolts and nuts.

[0044] The cylinder 7 is started to drive the knob support 4 to move up and down along the second guide rail 6, and in turn drive the knob 3 to move up and down.

[0045] The knob 3 is provided with a U-shaped opening slot, the opening width of the opening slot is greater than the inner diameter of the paper tube 1 and less than the outer diameter of the paper tube 1, so as to avoid the knob 3 from being blocked with the air expansion shaft when the paper tube 1 is pushed.

[0046] As Figure 1As shown, the guiding device comprises a slide 14 fixedly connected with the slide support 131 and a first sliding block 15 fixedly connected with the slide plate 8, and the first sliding block 15 is in sliding connection with the slide 14. The length direction of the slide 14 is consistent with the length direction of the synchronous belt 9; the length direction of the slide 14 is parallel to the paper tube storage part 2; the first sliding block 15 drives the slide plate 8 to move linearly along the slide 14, and the slide plate 8 drives the push hand 3 to move linearly. The synchronous belt 81 drives the slide plate 8 to move linearly along the slide 14.

[0047] As shown in the drawings, Figure 9 As shown, the slide support 131 and the slide plate 8 are provided with a limiting device for preventing collision, and the limiting device comprises an inductive limiting device and a mechanical limiting block 85, two mechanical limiting blocks 85 are arranged at two ends of the slide support 131, and the inductive limiting device comprises travel switches 19 arranged at two ends of the slide support 131, and the travel switches 19 are used for controlling the position of the push hand 3 on the slide support 131; the distance between the two mechanical limiting blocks 85 is greater than the distance between the two travel switches 19; the distance between the two travel switches 19 is determined according to the distance of pushing the paper tube 1; the two travel switches 19 are the starting position of the push hand 3 for conveying the paper tube 1 and the stop position of the push hand 3 for conveying the paper tube 1; that is, the two travel switches 19 are used for detecting the distance of pushing the paper tube 1 by the push hand 3 on the slide support 131.

[0048] The application is installed on a winding machine, and uses the original controller of the winding machine; the controller is in signal connection with the travel switches 19, the air cylinders 7 and the speed reducers 12 respectively;

[0049] The travel switches 19 are arranged on the inner side of the mechanical limiting blocks 85, that is, when the push hand 3 moves, the travel switches 19 first sense the push hand 3, and then the travel switches 19 send a signal to the controller, and the controller sends a stop signal to the motor of the speed reducer 12, so that the slide plate 8 does not collide with the mechanical limiting block 85;

[0050] If the travel switches 19 fail, the motor of the speed reducer 12 (the controller) cannot sense the signal of the push hand 3, the motor of the speed reducer 12 drives the slide plate 8 to continue to move forward until the slide plate 8 contacts the mechanical limiting block 85, and then the slide plate 8 stops, so that the slide plate 8 does not collide with the two ends of the synchronous belt 9 and the motor is not damaged.

[0051] The controller is provided with programs of the travel switches 19, the air cylinders 7 and the speed reducers 12, and the controller is automatically operated, so that the efficiency is improved.

[0052] The working process of the application,

[0053] After the film roll is unloaded from the rewinder, a new paper tube 1 needs to be fed into the film roll shaft (also called a mandrel, which is a type of air shaft). The cylinder 7 is started, and the cylinder 7 drives the lever 3 downward along the second guide rail 6. After it reaches the position, the cylinder 7 stops. Then, the motor of the reducer 12 is started. The motor drives the reducer 12 to rotate, the reducer 12 drives the drive shaft 11 to rotate, the drive shaft 11 drives the drive wheel 10 to rotate, the drive wheel 10 drives the synchronous belt 9 to rotate, and the synchronous belt 9 drives the slide plate 8 to slide along the slide rail 14. The slide plate 8 drives the lever 3 to move. The lever 3 pushes the paper tube 1 on the paper tube storage section 2 onto the air shaft. After the paper tube 1 reaches the position (that is, after the limit switch 19 on the left senses the signal from the lever 3), the reducer 12 stops. The cylinder 7 raises the lever 3 (to avoid the lever 3 colliding with the paper tube 1 in the paper tube storage section), the reducer 12 reverses, and the synchronous belt 9 returns the slide plate 8 to the starting position (the limit switch 19 on the right senses the signal from the lever 3), waiting for the next feed.

[0054] Example 2

[0055] This embodiment has a basically the same structure as Embodiment 1.

[0056] The difference is that,

[0057] During use, it was found that when the lever 3 pushes the paper tube 1, there are occasional burrs on the end face of the paper tube 1, which affects the appearance of the product. The reason is that the lever 3 is driven by the synchronous belt 9 and the initial contact with the end face of the paper tube 1 is caused by impact force. At the same time, it was also found that the lever 3 and the connecting parts that fix the lever 3 are frequently damaged. The reason is also that the lever 3 is caused by long-term collision and impact with the end face of the paper tube 1.

[0058] To reduce the initial contact force between the lever 3 and the paper tube 1, we designed a buffer positioning device 83, detailed below.

[0059] A buffer positioning device 83 is provided between the lever 3 and the lever bracket 4;

[0060] like Figure 8 As shown, the buffer positioning device 83 includes a hydraulic buffer 35 mounted on the lever bracket 4 to reduce the collision force between the lever 3 and the paper tube 1, an adjusting screw 34 mounted on the lever bracket 4, a third slide rail 31 fixedly connected to the lever bracket 4, a third slider 32 slidably connected to the third slide rail 31, and a lever fixing frame 33 fixedly connected to the third slider 32. The lever 3 is fixedly connected to the lever fixing frame 33, the adjusting screw 34 abuts against one side of the lever fixing frame 33, and the extended end of the hydraulic buffer 35 abuts against the other side of the lever fixing frame 33. The lever 3 abuts against the paper tube 1. By rotating the adjusting screw 34, the extension length on the lever bracket 4 is adjusted, and an initial pressure can be applied to the extended end of the hydraulic buffer 35 through the lever fixing frame 33, thereby determining the initial pressure of the lever 3.

[0061] When the knob 3 contacts the paper tube 1, the knob 3 pushes the paper tube 1, and the paper tube 1 exerts a reaction force on the knob 3. When the reaction force exceeds the initial pressure, the knob 3 pushes the extended end of the oil buffer 35. When the reaction force and the pressure in the oil buffer 35 are balanced, the extended end of the oil buffer 35 pushes the knob 3, and the knob 3 pushes the paper tube 1 to forward transport, thereby avoiding impact force between the knob 3 and the end face of the paper tube 1, causing deformation of the end face of the paper tube 1, and avoiding damage to the knob 3 and its connecting parts caused by long-term impact.

[0062] Example 3

[0063] The embodiment is basically the same as the embodiment structure,

[0064] The difference is that,

[0065] In use, the synchronous belt 9 will be stretched, and in severe cases, the synchronous pulley will lose rotation. Therefore, it is necessary to take measures; increase the synchronous belt tightness adjusting device;

[0066] The synchronous belt assembly further comprises a synchronous belt tightness adjusting device for adjusting the tightness of the synchronous belt 9.

[0067] As Figures 3-6 shown, the synchronous belt tightness adjusting device comprises a threaded hole 162 and a strip hole 163 provided on the driven pulley support frame 161, an adjusting block 17 provided on the slide support 131, and an adjusting bolt 18 threadedly connected with the threaded hole 162 of the driven pulley support frame 161; the adjusting bolt 18 is rotationally connected with the adjusting block 17; the strip hole 163 is arranged along the length direction of the synchronous belt 9; the slide support 131 is provided with a first threaded hole, and the driven pulley support frame 161 is fixed on the slide support 131 through the first threaded hole by a bolt passing through the strip hole 163; the driven pulley support frame 161 is provided with a driven pulley bearing 164; the driven pulley 16 is installed on the driven pulley bearing 164 through a driven pulley shaft 165.

[0068] When the synchronous belt 9 is stretched, loosen the bolt fixing the driven pulley support frame 161, and rotate the adjusting bolt 18. Under the action of the thread force, the driven pulley support frame 161 will be pulled to one side of the adjusting block 17. When the synchronous belt 9 is tightened, stop rotating the adjusting bolt 18, and fix the driven pulley support frame 161 and the slide support 131 with a bolt; increase the distance between the two synchronous pulleys to eliminate the influence of the stretching of the synchronous belt 9.

[0069] The above merely describes a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto; any person skilled in the art can make equivalent replacements or changes to the technical scope disclosed in the present application according to the technical scheme and improvement concept of the present application, and all of them should be covered in the protection scope of the present application.

[0070] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0071] The above only describes the embodiments of the present application, and the common knowledge of specific structures and characteristics in the scheme is not described in detail, and the person skilled in the art knows all the common technical knowledge in the field of the present application before the application date or the priority date, can know all the prior art in the field, and has the ability to apply conventional experimental means before that date, and the person skilled in the art can improve and implement the present scheme under the guidance of the present application, and some typical known structures or known methods should not be an obstacle for the person skilled in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific embodiments in the specification can be used to explain the content of the claims.

Claims

1. A paper-feeding tube device, characterized in that, It includes a support frame (13) fixedly connected to the wall panel and a conveying assembly mounted on the support frame (13); the conveying assembly includes a timing belt assembly for pushing the paper tube (1), a paper tube pushing mechanism mounted on the timing belt assembly, and a guide device mounted between the paper tube pushing mechanism and the support frame (13); the guide device is used to guide the paper tube pushing mechanism; the paper tube pushing mechanism is provided with a buffer positioning device (83) to prevent burrs from forming on the end face of the paper tube when pushing the paper tube (1).

2. The paper feeding tube device according to claim 1, characterized in that: The synchronous belt assembly includes a slide bracket (131) fixedly connected to the support frame (13), a drive wheel support frame fixedly connected to one end of the slide bracket (131), a drive wheel (10) rotatably connected to the drive wheel support frame, a passive wheel support frame (161) located at the other end of the slide bracket (131), a passive wheel (16) rotatably connected to the passive wheel support frame (161), and a synchronous belt (9) located between the drive wheel (10) and the passive wheel (16); the paper pusher mechanism is located on the synchronous belt (9).

3. The paper feeding tube device according to claim 2, characterized in that, The timing belt assembly also includes a timing belt tension adjustment device for adjusting the tension of the timing belt (9).

4. A paper feeding tube device according to claim 3, characterized in that, The timing belt tension adjustment device includes a threaded hole (162) and a strip hole (163) on the driven wheel support frame (161), an adjustment block (17) on the slide bracket (131), and an adjustment bolt (18) threadedly connected to the threaded hole (162) of the driven wheel support frame (161); the adjustment bolt (18) is rotatably connected to the adjustment block (17); the strip hole (163) is arranged along the length direction of the timing belt (9); the slide bracket (131) is provided with a first threaded hole, and the bolt passes through the strip hole (163) to fix the driven wheel support frame (161) on the slide bracket (131) through the first threaded hole; the driven wheel support frame (161) is provided with a driven wheel bearing (164); the driven wheel (16) is mounted on the driven wheel bearing (164) through a driven wheel axle (165).

5. A paper feeding tube device according to claim 2, characterized in that: The paper tube pushing mechanism also includes a timing belt plate (81) fixedly connected to the timing belt (9), a sliding plate (8) fixedly connected to the timing belt plate (81), a cylinder bracket (84) fixedly connected to the sliding plate (8), a cylinder (7) fixedly connected to the cylinder bracket (84), a lever bracket (4) fixedly connected to the output end of the cylinder (7), and a lever (3) connected to the lever bracket (4); the lever (3) is used to push the paper tube (1); The skateboard (8) is provided with a second guide rail (6); the lever bracket (4) is provided with a second slider (5); the second slider (5) is slidably connected to the second guide rail (6); The timing belt plate (81) is located on the upper surface of the timing belt (9), and the pressure plate (82) is located on the lower surface of the timing belt (9). Bolts and nuts fix the timing belt plate (81) and the pressure plate (82) on the timing belt (9).

6. A paper feeding tube device according to claim 5, characterized in that: The guiding device includes a slide (14) fixedly connected to the slide bracket (131) and a first slider (15) fixedly connected to the slide plate (8), wherein the first slider (15) is slidably connected to the slide (14).

7. A paper feeding tube device according to claim 5, characterized in that: A collision prevention limiting device is provided between the slide support (131) and the slide plate (8). The limiting device includes a sensor limiting device and a mechanical limiting block (85). The two mechanical limiting blocks (85) are respectively located at both ends of the slide support (131). The sensor limiting device includes limit switches (19) installed at both ends of the slide support (131). The distance between the two mechanical limiting blocks (85) is greater than the distance between the two limit switches (19). The limit switches (19) are located inside the mechanical limiting blocks (85). The two limit switches (19) are used to detect the distance that the lever (3) pushes the paper tube (1) on the slide support (131).

8. A paper feeding tube device according to claim 2, characterized in that: The synchronous belt assembly also includes a reducer (12) for driving the drive wheel (10) to rotate; the reducer (12) is fixed on the slide rail bracket (131), the slide rail bracket (131) is provided with a deep groove ball bearing, the drive wheel (10) is fixedly connected to the drive shaft (11); the drive shaft (11) is rotatably connected to the slide rail bracket (131) through the deep groove ball bearing; the drive shaft (11) is drive-connected to the reducer (12).

9. A paper feeding tube device according to claim 5, characterized in that: The lever (3) is provided with a U-shaped opening groove, the opening width of which is greater than the inner diameter of the paper tube (1) and less than the outer diameter of the paper tube (1).

10. A paper feeding tube device according to claim 5, characterized in that: A buffer positioning device (83) is provided between the lever (3) and the lever bracket (4); the buffer positioning device (83) includes a hydraulic damper (35) provided on the lever bracket (4) for reducing the collision force between the lever (3) and the paper tube (1), an adjusting screw (34) provided on the lever bracket (4), a third slide rail (31) fixedly connected to the lever bracket (4), a third slider (32) slidably connected to the third slide rail (31), and a lever fixing frame (33) fixedly connected to the third slider (32); the lever (3) is fixedly connected to the lever fixing frame (33), the adjusting screw (34) abuts against one side of the lever fixing frame (33), and the extended end of the hydraulic damper (35) abuts against the other side of the lever fixing frame (33); the lever (3) abuts against the paper tube (1).

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