An automotive seat plastic film protective cover conveying and rectifying device

Abstract

The present invention discloses a conveying and deviation rectifying device for a plastic film protective cover of an automobile seat, which relates to the field of film conveying and solves the problem that it is difficult to ensure the tensioned state on both sides of the plastic film during the deviation rectifying process when the existing conveying and deviation rectifying device for the plastic film protective cover of the automobile seat is in use, resulting in the appearance of wrinkles on the plastic film during the adjustment of deviation rectification. The device includes a base, a conveying mechanism, a deviation rectifying mechanism and a flapping mechanism. The deviation rectifying mechanism includes a deviation rectifying shaft and a deviation rectifying screw, and the flapping mechanism includes a flapping plate. The present invention conveys the plastic film of the protective cover through the conveying mechanism, drives the deviation rectifying shaft to rotate through the deviation rectifying mechanism, so that the deviation rectifying screw generates friction with the inner wall of the plastic film, stretches and tightens the plastic film to both sides, ensures the relative flatness of the plastic film during the conveying process, and intermittently reciprocates the flapping plates on both sides towards the two ends of the plastic film through the flapping mechanism, thereby centering and aligning the plastic film and avoiding the situation of deviation during the winding and conveying process.

Description

Technical Field

[0001] The invention relates to the technical field of film handling and conveying, in particular to a conveying deviation-correcting device for a plastic film protective cover of an automobile seat. Background Art

[0002] With the continuous advancement of science and technology and the continuous improvement of people's living standards, cars have gradually entered thousands of households. During car sales test drives and when cars are driven in some relatively dirty environments (such as construction sites, gravel plants, etc.), people will put a layer of plastic film protective cover on the outside of the car seats to prevent the car seats from getting dirty. This can effectively protect the car seats in a short time. The production of plastic film protective covers for car seats requires multiple processes such as cutting, picking, feeding, and bonding elastic bands of plastic films, among which conveying and deviation correction are relatively important links.

[0003] In the process of conveying plastic film, as the plastic film is continuously wound, the original slight deviation will continue to expand with the increase in the number of winding turns, eventually causing wrinkles and deviations to appear inside the plastic film roll, and the entire roll will also be relatively tilted, affecting subsequent transportation and processing. The existing correcting mechanism does not tighten the film during the correction process, which makes it easy for wrinkles and overlaps to appear during the correction process. Some correcting mechanisms only adjust and move a certain point of the plastic film during the correction process, resulting in a large change in force at that position, which is prone to tearing and affects product quality. Summary of the invention

[0004] The purpose of the present invention is to provide a conveying and correcting device for a plastic film protective cover of a car seat, which can ensure that both sides of the plastic film are continuously tightened during the correction process and can continuously and stably perform the correction operation, so as to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: An automotive seat plastic film protection sleeve conveying and rectifying device, comprising a base, a conveying mechanism, a rectifying mechanism and a flapping mechanism. A workbench is fixedly connected to the base. The conveying mechanism is installed on the base and is used for conveying the plastic film of the protection sleeve. The rectifying mechanism includes two rectifying shafts respectively rotatably connected to the workbench. A guiding groove is formed in the rectifying shaft, and a guiding rod is fixedly connected in the guiding groove. Two rectifying screws with opposite spiral directions are fixedly connected to the outer wall of the guiding rod. By driving the rectifying shaft to rotate, the rectifying screws generate friction with the inner wall of the plastic film, so as to stretch and tighten the plastic film to both sides, ensuring the relative flatness of the plastic film during the conveying process. The flapping mechanism includes flapping plates installed on both sides of the base, which are used for intermittently flapping towards both ends of the plastic film on both sides when the conveying mechanism is running, so as to center-align the plastic film, avoid deviation during the winding and conveying processes, and facilitate ensuring that both sides of the plastic film are continuously tightened and the rectifying operation can be continuously and stably carried out during the rectifying process.

[0006] Preferably, the rectifying mechanism further includes a threaded rod rotatably connected coaxially with the rectifying shaft. The threaded rod penetrates through the guiding rod and is threadedly connected to the guiding rod. The conveying mechanism is used for driving the two rectifying shafts to rotate during operation. Two connecting plates are slidably connected to the workbench in the horizontal direction. Connecting rings rotatably connected to the two connecting plates are respectively fixedly connected to the outer walls of both ends of the guiding rod. An adjusting member for synchronously driving the two threaded rods to rotate and adjust is provided on the workbench, which is convenient for driving the rectifying shaft to rotate, so that the rectifying screws generate friction with the inner wall of the plastic film, stretch and tighten the plastic film to both sides, and ensure the relative flatness of the plastic film during the conveying process.

[0007] Preferably, the conveying mechanism includes two mounting frames fixedly installed on the base. An output roller and a winding roller are respectively rotatably connected to the two mounting frames. A first motor is fixedly connected to the base, and an output end of the first motor is coaxially and fixedly connected to a driving shaft, and the driving shaft is coaxially and fixedly connected to one end of the winding roller, which is convenient for conveying the plastic film of the protection sleeve.

[0008] Preferably, the flapping mechanism also includes a buffer spring fixedly mounted on the side of the flapping plate, the buffer spring is fixedly connected to a driving plate at one end away from the flapping plate, and a sliding block is fixedly connected to the driving plate and is slidably connected to the mounting frame along a horizontal direction. The output roller and the winding roller pass through the flapping plates and the driving plates on both sides, and are movably connected to the flapping plates and the inner walls of the driving plates. The output roller is provided with a driving member for controlling the driving plate to slide back and forth during rotation, so that when the conveying mechanism is running, the flapping plates on both sides are linked to intermittently reciprocate toward the two ends of the plastic film, thereby aligning the plastic film in the center and avoiding offset during winding and conveying.

[0009] Preferably, the driving member includes a driving box fixedly mounted on both sides of the workbench, a push plate is slidably connected in the driving box, a connecting rod is rotatably connected to the side of the push plate at a non-center position of the side of the output roller, an output pipe is connected to the side of the driving box, a control rod is fixedly connected to the side of the sliding block, a plurality of control tubes connected to the output tube are fixedly connected to the workbench, and an outer wall of the control rod is slidably connected to an inner wall of the control tube, so as to facilitate the linkage control of the driving plate to slide back and forth during the rotation process.

[0010] Preferably, the adjusting member includes a second motor fixedly mounted on the workbench, both ends of the threaded rod are coaxially fixedly connected with driven wheels, the output end of the second motor is coaxially fixedly connected with a driving rod, two groups of driving wheels are coaxially fixedly connected to the driving rod, and the outer wall of the driving wheel is transmission-connected with a first belt transmission-connected to the two groups of driven wheels on the same side close to the second motor, so as to synchronously drive the threaded rods on both sides to rotate and adjust.

[0011] Preferably, the outer wall of the driving shaft is connected to a second belt via a pulley transmission which is connected to the outer wall of the deflection correction shaft near the first motor side, so as to facilitate the synchronous rotation of the deflection correction shaft during the rotation of the driving shaft.

[0012] Preferably, a third belt is connected between the two groups of the deviation-correcting shafts via a pulley transmission to facilitate driving the deviation-correcting shafts on both sides to rotate synchronously.

[0013] Preferably, a plurality of sets of sliding rods are fixedly connected to the side of the flapping board, and the sliding rods penetrate the driving board and are slidably connected to the driving board in a horizontal direction, so as to guide the flapping board and improve stability during operation.

[0014] Preferably, a pressure sensor is provided at one end of the buffer spring to facilitate monitoring of the centering state of the plastic film.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The present invention provides a conveying and rectifying device for a plastic film protective cover of an automobile seat, which solves the problem that it is difficult to ensure the tension state on both sides of the plastic film during the rectifying process when using the existing conveying and rectifying device for the plastic film protective cover of an automobile seat, resulting in wrinkles in the plastic film during the adjustment of rectification. The conveying mechanism conveys the protective cover plastic film. The rectifying mechanism drives the rectifying shaft to rotate, so that the rectifying screw rubs against the inner wall of the plastic film, stretching and tightening the plastic film to both sides, ensuring the relative flatness of the plastic film during the conveying process. And when the conveying mechanism operates, the beating mechanism drives the two beating plates to intermittently reciprocate and beat the two ends of the plastic film, thereby centering and aligning the plastic film, avoiding the situation of deviation during the winding and conveying processes. This device has a high degree of automation and is convenient and efficient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 is an exploded view of a partial structure of the present invention;

[0019] Figure 3 is a sectional view of a partial structure of the beating mechanism of the present invention;

[0020] Figure 4 is Figure 3 an enlarged view of area A in

[0021] Figure 5 is a schematic diagram of a partial structure of the beating mechanism of the present invention;

[0022] Figure 6 is Figure 5 an enlarged view of area B in

[0023] Figure 7 is a schematic diagram of a partial structure of the conveying mechanism of the present invention;

[0024] Figure 8 is a schematic diagram of a partial structure of the rectifying mechanism of the present invention;

[0025] Figure 9 is Figure 8 an enlarged view of area C in

[0026] In the figure: 1. base; 2. workbench; 3. deviation correction shaft; 4. guide groove; 5. guide rod; 6. deviation correction spiral; 7. flap plate; 8. threaded rod; 9. connecting plate; 10. connecting ring; 11. mounting frame; 12. output roller; 13. winding roller; 14. first motor; 15. driving shaft; 16. buffer spring; 17. driving plate; 18. sliding block; 19. driving box; 20. pushing plate; 21. connecting rod; 22. output pipe; 23. control rod; 25. control pipe; 27. second motor; 28. driven wheel; 29. ​​driving rod; 30. driving wheel; 32. first belt; 33. second belt; 34. third belt; 35. sliding rod; 36. plastic film. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example 1: Please refer to Figures 1 - 9 The figure shows a conveying and correcting device for a plastic film protective cover of a car seat, comprising a base 1, a conveying mechanism, a correcting mechanism and a beating mechanism. A workbench 2 is fixedly connected to the base 1, and the conveying mechanism is installed on the base 1 for conveying the plastic film 36 of the protective cover. The correcting mechanism comprises two sets of correcting shafts 3 rotatably connected to the workbench 2 respectively, and a guide groove 4 is provided in the correcting shaft 3. A guide rod 5 is fixedly connected in the guide groove 4. Two sets of correcting spirals 6 with opposite spiral directions are fixedly connected to the outer wall of the guide rod 5, which is used to drive the correcting shaft 3 to rotate so that the correcting spirals 6 and the inner wall of the plastic film 36 generate friction, stretch the plastic film 36 to both sides, and ensure the relative flatness of the plastic film 36 during the conveying process. The beating mechanism comprises beating plates 7 installed on both sides of the base 1, which are used to link the beating plates 7 on both sides to intermittently beat back and forth at both ends of the plastic film 36 when the conveying mechanism is running, so as to align the plastic film 36 in the center and avoid deviation during the winding and conveying process.

[0029] The correcting mechanism also includes a threaded rod 8 which is coaxially rotatably connected to the correcting shaft 3. The threaded rod 8 passes through the guide rod 5 and is threadedly connected to the guide rod 5. The conveying mechanism is used to link the correcting shafts 3 on both sides to rotate during operation. Two sets of connecting plates 9 are slidably connected to the workbench 2 in the horizontal direction. The outer walls at both ends of the guide rod 5 are respectively fixedly connected with connecting rings 10 which are rotatably connected to the connecting plates 9 on both sides. The workbench 2 is provided with an adjusting part for synchronously driving the threaded rods 8 on both sides to rotate and adjust.

[0030] The conveying mechanism includes two groups of mounting brackets 11 fixedly installed on the base 1. An output roller 12 and a winding roller 13 are respectively rotatably connected to the two groups of mounting brackets 11. A first motor 14 is fixedly connected to the base 1. The output end of the first motor 14 is coaxially and fixedly connected to a drive shaft 15. One end of the drive shaft 15 is coaxially and fixedly connected to the winding roller 13. The outer wall of the drive shaft 15 is connected to the outer wall of a deviation correction shaft 3 on the side close to the first motor 14 through a pulley drive by a second belt 33. A third belt 34 is connected between the two groups of deviation correction shafts 3 through a pulley drive.

[0031] The adjusting member includes a second motor 27 fixedly installed on the workbench 2. The models of the first motor 14 and the second motor 27 are preferably YYHS-40. Driven wheels 28 are coaxially and fixedly connected to both ends of the threaded rod 8. The output end of the second motor 27 is coaxially and fixedly connected to a drive rod 29. Two groups of driving wheels 30 are coaxially and fixedly connected to the drive rod 29. The outer wall of the driving wheel 30 is connected to the outer wall of two groups of driven wheels 28 on the same side close to the second motor 27 through a first belt 32.

[0032] In this implementation plan, after the plastic film 36 wound on the output roller 12 is guided by the two groups of deviation correction shafts 3, one end is driven and wound by the winding roller 13. The middle position of the plastic film 36 horizontally passes through the upper side of the workbench 2. Operations such as cutting, dust removal, and drawing lines can be performed on the upper side of the workbench 2 for the plastic film 36. Starting the first motor 14 to drive the drive shaft 15 to rotate can make the winding roller 13 convey and wind the plastic film 36. The drive shaft 15 will drive the second belt 33, so that the adjacent deviation correction shafts 3 rotate synchronously, thereby driving the third belt 34 to make the other group of deviation correction shafts 3 rotate.

[0033] During the process of the plastic film 36 being conveyed from the output roller 12 to the side of the winding roller 13, the outer wall of the deviation correction spiral 6 contacts and rubs against the bottom surface of the plastic film 36. The deviation correction spirals 6 are arranged symmetrically in two groups and can tension the plastic film 36 to both sides during the friction with the bottom surface of the plastic film 36, improving the flatness of the plastic film 36 during the conveying process and avoiding phenomena such as wrinkles and overlaps of the plastic film 36 during the deviation correction process.

[0034] When it is necessary to push the plastic film 36 to one side for deviation correction, the second motor 27 is started to drive the driving wheel 30 to rotate through the driving rod 29. The driving wheel 30 drives the driven wheels 28 on both sides to rotate through the first belt 32. The driven wheels 28 drive the threaded rod 8 to rotate, so that the rotation speed of the threaded rod 8 is different from that of the deviation correction shaft 3. Adjust the rotation direction of the driving rod 29 so that when the threaded rod 8 rotates in the same direction as the deviation correction shaft 3, the rotation speed of the threaded rod 8 is greater than that of the deviation correction shaft 3. Thus, the threaded rod 8 drives the guide rod 5 to slide horizontally to the left in the guide groove 4, and then drives the whole deviation correction screw 6 to move to the left. By ensuring the synchronous adjustment of the two deviation correction shafts 3 through the connecting plate 9, the plastic film 36 between the two groups of deviation correction shafts 3 can be adjusted to the left as a whole for deviation correction. Compared with the traditional deviation correction device that adjusts the deviation at a single point, this deviation correction method for the whole length is more stable and avoids the situation that the plastic film 36 is torn due to uneven force during the single-point adjustment process.

[0035] On the contrary, when it is necessary to adjust the deviation correction to the right, the threaded rod 8 and the deviation correction shaft 3 are controlled to rotate in opposite directions, so that the threaded rod 8 drives the guide rod 5 to slide to the right in the guide groove 4, driving the whole deviation correction screw 6 to move to the right, and moving the plastic film 36 between the two groups of deviation correction shafts 3 to the right by a set distance to complete the deviation correction operation.

[0036] It should be noted that when the deviation correction operation is not required, the second motor 27 stops running, and the driving wheel 30 and the driven wheels 28 can rotate arbitrarily. At this time, when the deviation correction shaft 3 rotates, it will drive the guide rod 5 and the threaded rod 8 to rotate synchronously, and there is no relative rotation between the guide rod 5 and the threaded rod 8, which can ensure the stability of the position of the guide rod 5. At this time, only the deviation correction screw 6 on the guide rod 5 rotates to realize the tensioning function.

[0037] During the conveying process, the two-sided flapping plates 7 are intermittently reciprocally flapped against both ends of the plastic film 36 through the flapping mechanism, so as to center-align the plastic film 36 and avoid the situation of deviation during the winding and conveying processes. This device has a high degree of automation and is convenient and efficient to operate.

[0038] Embodiment 2: Please refer to Figures 2 - 6, this embodiment further illustrates Embodiment 1. The flapping mechanism in the figure further includes a buffer spring 16 fixedly installed on the side of the flapping plate 7. One end of the buffer spring 16 away from the flapping plate 7 is fixedly connected to a driving plate 17. A plurality of sliding rods 35 are fixedly connected to the side of the flapping plate 7. The sliding rods 35 penetrate through the driving plate 17 and are slidably connected to the driving plate 17 in the horizontal direction. A sliding block 18 slidably connected to the mounting frame 11 in the horizontal direction is fixedly connected to the driving plate 17. The output roller 12 and the winding roller 13 penetrate through the two-side flapping plates 7 and the driving plate 17 and are movably sleeved on the inner walls of the flapping plates 7 and the driving plate 17. A pressure sensor is provided at one end of the buffer spring 16. A driving member for driving the driving plate 17 to reciprocate slidably during rotation is provided on the output roller 12.

[0039] The driving member includes driving boxes 19 fixedly installed on both sides of the workbench 2. A pushing plate 20 is slidably connected in the driving box 19. A connecting rod 21 rotatably connected to the side of the pushing plate 20 is rotatably connected to a non-central position on the side of the output roller 12. An output pipe 22 is connected to the side of the driving box 19 in a communicating manner. A control rod 23 is fixedly connected to the side of the sliding block 18. A plurality of control pipes 25 communicated with the output pipe 22 are fixedly connected to the workbench 2. The outer wall of the control rod 23 is slidably connected to the inner wall of the control pipe 25.

[0040] In this implementation scheme, during the rotation of the output roller 12, the connecting rods 21 at both ends will be driven to rotate, so that the pushing plate 20 performs a reciprocating piston movement in the driving box 19. The driving box 19 is used to store hydraulic oil. As the pushing plate 20 reciprocates, the hydraulic intensity in the driving box 19 rises and falls. When the hydraulic intensity increases, the pressure can be output to one end of the control rod 23 through the output pipe 22 and the control pipe 25, pushing the control rod 23 to slide, so that the sliding blocks 18 on both sides slide in the mounting frame 11, driving the driving plate 17 to move towards both sides of the plastic film 36. The driving plate 17 pushes the buffer spring 16, guides the flapping plate 7 through the sliding rod 35, so that the side of the flapping plate 7 impacts both sides of the plastic film 36 and is buffered by the buffer spring 16 to avoid excessive extrusion of the plastic film 36.

[0041] Conversely, when the hydraulic strength in the drive box 19 decreases, the hydraulic pressure in the control pipe 25 drops, and the control rod 23 can be pulled into the control pipe 25, driving the drive plates 17 on both sides to open synchronously to both sides, and the flapping plate 7 moves away from the plastic film 36. Repeating this process can achieve the purpose of intermittently flapping both ends of the plastic film 36. On the one hand, it can vibrate and align the plastic film 36 to the centered position, and on the other hand, it can monitor the offset state of the plastic film 36 for subsequent deviation correction adjustment. Since multiple control pipes 25 are all connected to the output pipe 22, the forces on the drive plates 17 on both sides during the sliding process are the same. A roller can be provided on the side of the sliding block 18 to reduce the friction with the mounting frame 11. It is necessary to regularly monitor the movement states of the flapping plates 7 on both sides to avoid inconsistent movement distances.

[0042] By comparing the readings of the pressure sensors on the buffer springs 16 on both sides, when the readings are the same, it indicates that the thrust on both ends of the plastic film 36 is the same during the flapping and squeezing process, and the plastic film 36 is in a relatively centered position, so there is no need to start the second motor 27 for deviation correction adjustment. When the readings on both sides are inconsistent, it means that the plastic film 36 is offset towards the side with the larger reading, and the second motor 27 can be controlled to move the deviation correction screw 6 towards the side with the smaller reading to complete the deviation correction function.

[0043] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0044] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conveying and correcting device for a plastic film protective cover of a car seat, characterized in that: include: A base, to which a workbench is fixedly connected; Also includes: A conveying mechanism, wherein the conveying mechanism is installed on the base; The deflection correction mechanism includes two groups of deflection correction shafts which are respectively connected to the workbench for rotation. A guide groove is provided in the deflection correction shaft. A guide rod is fixedly connected in the guide groove. Two groups of deflection correction spirals with opposite spiral directions are fixedly connected to the outer wall of the guide rod. The deflection correction shaft is driven to rotate so that the deflection correction spirals generate friction with the inner wall of the plastic film, thereby stretching and tightening the plastic film to both sides. The flapping mechanism comprises flapping plates installed on both sides of the base, which are used for intermittently flapping the flapping plates on both sides toward the two ends of the plastic film when the conveying mechanism is running. The deviation correction mechanism also comprises a threaded rod coaxially connected to the deviation correction shaft, the threaded rod penetrates the guide rod and is threadedly connected to the guide rod. Two sets of connecting plates are slidably connected to the workbench in the horizontal direction, and the outer walls at both ends of the guide rod are respectively fixedly connected to connecting rings rotatably connected to the connecting plates on both sides. The workbench is provided with an adjusting member for synchronously driving the threaded rods on both sides for rotation adjustment. The adjusting member comprises a second motor fixedly installed on the workbench, both ends of the threaded rod are coaxially fixedly connected to driven wheels, the output end of the second motor is coaxially fixedly connected to a driving rod, and two sets of driving wheels are coaxially fixedly connected to the driving rod, and the outer wall of the driving wheel is transmission-connected to a first belt transmission-connected to the two sets of driven wheels on the same side close to the second motor; The beating mechanism also includes a buffer spring fixedly installed on the side of the beating plate, and the end of the buffer spring away from the beating plate is fixedly connected to a driving plate, and the driving plate is fixedly connected to a sliding block that is slidably connected to the mounting frame along the horizontal direction. The output roller and the winding roller pass through the beating plates and the driving plates on both sides, and are movably connected to the inner walls of the beating plates and the driving plates. The output roller is provided with a driving member for linkage controlling the reciprocating sliding of the driving plate.

2. The conveying and correcting device for automobile seat plastic film protective cover according to claim 1 is characterized in that: The conveying mechanism includes two sets of mounting frames fixedly mounted on the base, the two sets of mounting frames are rotatably connected to the output roller and the winding roller respectively, the base is fixedly connected to the first motor, the output end of the first motor is coaxially fixedly connected to the driving shaft, and the driving shaft is coaxially fixedly connected to one end of the winding roller.

3. The device for conveying and correcting deviation of a plastic film protective cover for a car seat according to claim 1, characterized in that: The driving member includes a driving box fixedly installed on both sides of the workbench, a pushing plate is slidably connected in the driving box, a connecting rod is rotatably connected to the side of the pushing plate at a non-center position of the side of the output roller, the side of the driving box is connected to the output pipe, the side of the sliding block is fixedly connected to a control rod, a plurality of groups of control pipes connected to the output pipe are fixedly connected to the workbench, and the outer wall of the control rod is slidably connected to the inner wall of the control pipe.

4. The device for conveying and correcting deviation of a plastic film protective cover for a car seat according to claim 2, characterized in that: The outer wall of the driving shaft is connected to a second belt which is connected to the outer wall of the deviation correction shaft close to the first motor through a pulley.

5. The conveying and correcting device for plastic film protective covers of automobile seats according to claim 1, characterized in that: A third belt is connected between the two sets of deviation-correcting shafts through a belt pulley transmission.

6. The conveying and correcting device for automobile seat plastic film protective cover according to claim 3 is characterized in that: A plurality of sliding rods are fixedly connected to the side of the beating plate. The sliding rods penetrate the driving plate and are slidably connected with the driving plate in a horizontal direction.

7. The device for conveying and correcting deviation of a plastic film protective cover for a car seat according to claim 3, characterized in that: A pressure sensor is provided at one end of the buffer spring.

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