Automatic coating equipment and coating method for automobile seat back plate leather

Abstract

The automatic leather wrapping equipment for the automobile seat back plate comprises a base (1), the top of the base (1) is fixedly connected with an extrusion table (2), and a fixing assembly (3) is arranged at the top of the base (1); and the lower die (4) is arranged at the top of the extrusion table (2). According to the fixing mode, the situation that the wrapping leather deviates or is not uniform in the whole wrapping process is effectively avoided, it is guaranteed that the leather wrapping effect of the seat back plate is accurate, the wrapping leather is not subjected to position change due to vibration, pressure or other factors under clamping of the clamping rods, leather wrapping is more stable, and the service life of the seat back plate is prolonged. And the butt joint accuracy of the leather and the automobile seat back plate on the lower die is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of molds, and in particular relates to an automatic leather covering device and a covering method for a car seat back panel. Background Art

[0002] Car leather seats are made from raw hides peeled off from animals and then processed in leather factories. Usually, cowhide, sheepskin and pigskin are the main raw materials for making leather. Leather is generally divided into two categories: first-layer leather and second-layer leather. Car leather seats are car seats made of leather. In the production process of car seats, the back panel is an important part of the seat, and the outer surface of the back panel usually needs to be covered with leather. Traditional covering methods are generally completed by manual operation, which has problems such as low production efficiency, unstable quality, and high labor intensity. Therefore, it is very necessary to develop an efficient, stable and precise automatic covering device.

[0003] A car seat back panel leather edging mechanism according to the formula, publication number: CN215244477U, includes a first propulsion component and a second propulsion component, four first propulsion components are distributed in a rectangular shape, and four second propulsion components are respectively arranged at the connection between every two first propulsion components. The first propulsion component is suitable for wrapping the four sides of the leather onto the back panel, and the second propulsion component is suitable for wrapping the four corners of the leather onto the back panel.

[0004] In the above application, it is difficult to solve the problem that the covering leather cannot be offset and uneven during the entire covering process through the mutual cooperation between the first propulsion assembly and the second propulsion assembly, resulting in the leather covering effect of the seat back panel being not accurate enough, which needs to be improved. In addition, in the current market, when processing the leather of the car seat back panel, it is mainly pressed and formed by using a mold, and the leather is easily shifted during the process of placing the leather in the lower mold and the subsequent pressing with the upper mold, which reduces the aesthetics of the car leather seat, so it needs to be improved. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic leather covering device and covering method for a car seat back panel, which solves the existing problems.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: A leather automatic covering device for a car seat back panel comprises a base 1, a pressing table 2 is fixedly connected to the top of the base 1, a fixing assembly 3 is arranged on the top of the base 1; the fixing assembly 3 comprises a round rod 31, one end of the round rod 31 is fixedly connected to the top of the base 1, a lower plate 32 is passed through the circumferential surface of the round rod 31, an upper mold box 33 is arranged on the bottom of the lower plate 32, a vertical rod 34 is fixedly connected to the top of the base 1, a square plate 35 is fixedly connected to the side of the vertical rod 34, a motor 36 is fixedly connected to the side of the square plate 35, and a bidirectional mold box 33 is fixedly connected to the output shaft of the motor 36 The screw rod 37 has a threaded sleeve 38 on its circumferential surface, a first cross bar 39 fixedly connected to the side of the threaded sleeve 38, a clamping rod 310 fixedly connected to the side of the first cross bar 39, a limiting rod 312 fixedly connected to the side of the motor 36, and the end of the limiting rod 312 away from the motor 36 passes through the side of the threaded sleeve 38. The bottom of the upper mold box 33 is provided with a covering skin 5; the top of the extrusion table 2 is provided with a lower mold 4; the lower mold 4 includes a workbench 401, the top of the workbench 401 is provided with a lower mold body 402, and the top of the workbench 401 is provided with Control component 403, the top of the workbench 401 is fixedly connected with a mounting seat 404, the top of the mounting seat 404 is fixedly connected with a slide column 405, the surface of the slide column 405 is slidably connected with a buffer cylinder 406, the surface of the slide column 405 is sleeved with a buffer spring 407, and a limit component 408 is arranged on the top of the workbench 401; the limit component 408 includes a fixed seat 4081 and a clamping rod 4088, a slide groove 4082 is opened on the top of the fixed seat 4081, a slider 4083 is slidably connected inside the slide groove 4082, and the top of the slider 4083 is fixedly connected with a sliding seat 4084, a hydraulic cylinder 4085 is fixedly installed on the top of the fixed seat 4081, and the output end of the hydraulic cylinder 4085 is fixedly connected to the sliding seat 4084, the top of the sliding seat 4084 is fixedly connected to a bracket 4086, the inner side of the bracket 4086 is fixedly connected to a central axis 4087, a clamping rod 4088 is rotatably connected to the central axis 4087, the inner side of the clamping rod 4088 is fixedly connected to a second cross bar 4089, an electric push rod 40810 is fixedly installed on the top of the fixed seat 4081, and the output end of the electric push rod 40810 is fixedly connected to a lifting block 40811.

[0007] Optimally, the upper mold box 33 is located on the displacement trajectory of the clamping rod 310, two threaded sleeves 38 and two first cross bars 39 are provided, and the vertical center axes of the bidirectional screw rods 37 are symmetrical to each other; a plurality of clamping rods 310 are provided, two in a group, and are symmetrical to each other along the vertical center axis of the first cross bar 39, and a button 311 is provided on the side of the motor 36.

[0008] Optimally, a plurality of vertical rods 34 are provided, and are symmetrical with each other along the vertical center axis of the base 1, and the first cross rod 39 and the clamping rod 310 are located at the bottom of the lower plate 32; an air bag 313 is fixedly connected to the side of the vertical rod 34, an oil outlet pipe 315 passes through the side of the air bag 313, a rectangular rod 317 is fixedly connected to the top of the threaded sleeve 38, and an extrusion rod 318 is fixedly connected to the side of the rectangular rod 317.

[0009] Optimally, the airbag 313 is located on the displacement trajectory of the extrusion rod 318, and the end of the oil outlet pipe 315 away from the airbag 313 is located above the bidirectional screw rod 37; an oil inlet pipe 316 penetrates the side of the airbag 313, and a spring 314 is arranged inside the airbag 313.

[0010] Optimally, both ends of the buffer spring 407 initially conflict with the top of the mounting seat 404 and the bottom of the buffer cylinder 406; the surface of the buffer cylinder 406 is provided with anti-slip particles, and the buffer cylinder 406 is provided with four groups in total; the control component 403 is electrically connected to the electric push rod 40810 through a built-in wire.

[0011] Optimally, the length of the slide groove 4082 is one third of the length of the fixed seat 4081; the lifting block 40811 is rotatably connected to the second cross bar 4089, and the clamping rod 4088 is tilted in the initial state; the end of the clamping rod 4088 away from the central axis 4087 is close to the top of the lower mold body 402.

[0012] The present invention has the following beneficial effects: 1. The present invention realizes the relative movement of two clamping rods through the mutual cooperation between the motor, bidirectional screw, threaded sleeve, clamping rod and other components inside the fixing component, and can stably clamp the two sides of the covering leather to ensure that the covering leather does not move at the bottom of the upper mold box. This fixing method effectively avoids the deviation or unevenness of the covering leather during the entire covering process, ensures the precise leather covering effect of the seat back panel, and the covering leather will not change position due to vibration, pressure or other factors under the clamping of the clamping rod, making the leather covering more stable and ensuring the accuracy of the leather when docking with the car seat back panel on the lower mold.

[0013] 2. The present invention sets a limit position component, so that after the leather is placed in the lower mold body, the electric push rod can be turned on by the control component to drive the lifting block to move upward. The upward movement of the lifting block will drive the clamping rod to rotate to a horizontal state through cooperation with the cross bar. At this time, the clamping rod will clamp and limit the leather. When closing the mold, the hydraulic cylinder can also be controlled to drive the sliding seat to move to clamp the side of the leather, which effectively prevents deviation.

[0014] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the three-dimensional appearance structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional side view structure of the round rod of the present invention; Figure 3 It is a three-dimensional enlarged structural schematic diagram of the lower moving plate of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the three-dimensional enlarged structure of A in the middle; Figure 5 It is a three-dimensional enlarged structural schematic diagram of the airbag of the present invention.

[0017] Figure 6 It is a three-dimensional front view of the overall structure of the present invention; Figure 7 It is a three-dimensional side view of the overall structure of the present invention; Figure 8 It is a three-dimensional schematic diagram of the limit assembly structure of the present invention; Fig. 9 A three-dimensional cross-sectional view of the limit assembly structure of the present invention; Fig.10 It is a three-dimensional cross-sectional view of the structure of the pressing rod of the present invention.

[0018] In the accompanying drawings, the components represented by the reference numerals are as follows: 1 base; 2 extrusion table; 3 fixing assembly; 31 round rod; 32 downward plate; 33 upper mold box; 34 vertical rod; 35 square plate; 36 motor; 37 bidirectional screw rod; 38 threaded sleeve; 39 first cross bar; 310 clamping rod; 311 button; 312 limit rod; 313 air bag; 314 spring; 315 oil outlet pipe; 316 oil inlet pipe; 317 rectangular rod; 318 extrusion rod; 4 lower mold; 401 workbench; 402 lower mold body; 403 control assembly; 404 mounting seat; 405 sliding column; 406 buffer cylinder; 407 buffer spring; 408 limiting assembly; 4081 fixed seat; 4082 slide groove; 4083 slider; 4084 sliding seat; 4085 hydraulic cylinder; 4086 bracket; 4087 center axis; 4088 clamping rod; 4089 second cross bar; 40810 electric push rod; 40811 lifting block; 5 covering leather. DETAILED DESCRIPTION

[0019] 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.

[0020] Example 1 A kind of automatic leather covering equipment for automobile seat back panel, the top of the base 1 is fixedly connected with an extrusion platform 2, the top of the base 1 is provided with a fixing component 3, the fixing component 3 includes a round rod 31, one end of the round rod 31 is fixedly connected to the top of the base 1, a lower plate 32 is penetrated on the circumferential surface of the round rod 31, an upper mold box 33 is provided at the bottom of the lower plate 32, a vertical rod 34 is fixedly connected to the top of the base 1, a square plate 35 is fixedly connected to the side of the vertical rod 34, a motor 36 is fixedly connected to the side of the square plate 35, a bidirectional screw rod 37 is fixedly connected to the output shaft of the motor 36, a threaded sleeve 38 is threadedly connected on the circumferential surface of the bidirectional screw rod 37, a first cross rod 39 is fixedly connected to the side of the threaded sleeve 38, a clamping rod 310 is fixedly connected to the side of the first cross rod 39, a limiting rod 312 is fixedly connected to the side of the motor 36, one end of the limiting rod 312 away from the motor 36 penetrates the side of the threaded sleeve 38, and a covering leather 5 is provided at the bottom of the upper mold box 33.

[0021] The upper mold box 33 is located on the displacement track of the clamping rod 310. There are two threaded sleeves 38 and two first cross bars 39, and the vertical center axes of the two-way screw rod 37 are symmetrical to each other. There are two first cross bars 39, which is conducive to fixing the covering leather 5 on the bottom of the upper mold box 33, so that the upper mold box 33 can be squeezed onto the lower mold 4 when moving downward, so as to cover the leather 5 of the car seat back panel.

[0022] There are several clamping rods 310, which are arranged in groups of two and are symmetrical to each other along the vertical center axis of the first cross bar 39. A button 311 is provided on the side of the motor 36. The design of the button 311 facilitates direct control of the motor 36 and direct manipulation of the motor 36.

[0023] There are several vertical rods 34 , which are symmetrical with each other along the vertical center axis of the base 1 . The first cross bar 39 and the clamping rod 310 are located at the bottom of the lower plate 32 . There are several first cross bars 39 , which are conducive to clamping the left and right sides of the covering skin 5 at the bottom of the upper mold box 33 .

[0024] A airbag 313 is fixedly connected to the side of the vertical rod 34. An oil outlet pipe 315 penetrates through the side of the airbag 313. A rectangular rod 317 is fixedly connected to the top of the threaded sleeve 38. An extrusion rod 318 is fixedly connected to the side of the rectangular rod 317. By extruding the airbag 313, the lubricating oil inside the airbag 313 flows out through the oil outlet pipe 315 to lubricate the bidirectional lead screw 37 and prevent the bidirectional lead screw 37 from jamming during operation.

[0025] The airbag 313 is located on the displacement track of the extrusion rod 318. One end of the oil outlet pipe 315 away from the airbag 313 is located above the bidirectional lead screw 37. Such a design facilitates the lubricating oil flowing out to directly flow onto the bidirectional lead screw 37.

[0026] An oil inlet pipe 316 penetrates through the side of the airbag 313. A spring 314 is arranged inside the airbag 313. The design of the spring 314 facilitates the airbag 313 to automatically reset when the airbag 313 is not being extruded.

[0027] A lower mold 4 is arranged on the top of the extrusion table 2. The lower mold 4 includes a workbench 401. A lower mold body 402 is arranged on the top of the workbench 401. A control component 403 is arranged on the top of the workbench 401. A mounting seat 404 is fixedly connected to the top of the workbench 401. A sliding column 405 is fixedly connected to the top of the mounting seat 404. A buffer cylinder 406 is slidably connected to the surface of the sliding column 405. A buffer spring 407 is sleeved on the surface of the sliding column 405. A limiting component 408 is arranged on the top of the workbench 401; The limiting component 408 includes a fixed seat 4081 and a pressing rod 4088. A chute 4082 is opened on the top of the fixed seat 4081. A slider 4083 is slidably connected inside the chute 4082. A sliding seat 4084 is fixedly connected to the top of the slider 4083. A hydraulic cylinder 4085 is fixedly installed on the top of the fixed seat 4081. The output end of the hydraulic cylinder 4085 is fixedly connected to the sliding seat 4084. A bracket 4086 is fixedly connected to the top of the sliding seat 4084. A central shaft 4087 is fixedly connected to the inside of the bracket 4086. The pressing rod 4088 is rotatably connected to the central shaft 4087. A second cross bar 4089 is fixedly connected to the inside of the pressing rod 4088. An electric push rod 40810 is fixedly installed on the top of the fixed seat 4081. The output end of the electric push rod 40810 is fixedly connected to a lifting block 40811.

[0028] Both ends of the buffer spring 407 are initially in contact with the top of the mounting seat 404 and the bottom of the buffer cylinder 406. When the buffer cylinder 406 is impacted and moves downward, the buffer spring 407 will absorb the impact force to play a buffering role.

[0029] The surface of the buffer cylinder 406 is provided with anti-skid particles, and the buffer cylinder 406 is provided in four groups. The anti-skid particles on the surface of the buffer cylinder 406 play an anti-skid role. The cooperation of the four groups of buffer cylinders 406 and the buffer spring 407 plays a buffering role when the mold is closed.

[0030] The control component 403 is electrically connected to the electric push rod 40810 via a built-in wire, and the start-up of the electric push rod 40810 can be controlled by the control component 403.

[0031] The length of the slide groove 4082 is one third of the length of the fixed seat 4081 , and the movement of the slider 4083 in the slide groove 4082 makes the movement of the sliding seat 4084 more stable.

[0032] The lifting block 40811 is rotatably connected to the second cross bar 4089. The clamping rod 4088 is initially tilted. The lifting block 40811 moves upward and drives the clamping rod 4088 to rotate to a horizontal state through cooperation with the second cross bar 4089.

[0033] One end of the clamping rod 4088 away from the central axis 4087 is close to the top of the lower mold body 402. When the clamping rod 4088 rotates to a horizontal state, the end thereof close to the lower mold body 402 will clamp and limit the leather material.

[0034] Example 2 The wrapping method of the automatic wrapping equipment for leather backboard of automobile seat comprises the following steps: Step 1: Start the motor 36 by pressing the button 311. The rotation of the motor 36 will drive the bidirectional screw rod 37 to rotate. When the motor 36 rotates forward, it will drive the bidirectional screw rod 37 to rotate forward. The forward rotation of the bidirectional screw rod 37 will drive the two threaded sleeves 38 to make relative movement on the bidirectional screw rod 37. The two threaded sleeves 38 move in the same direction. The two threaded sleeves 38 move in the same direction, which will drive the two first cross bars 39 and the two clamping rods 310 to make relative movement. The bottom of the upper mold box 33 is provided with a covering skin 5. The covering skin 5 needs to be stably fixed to the bottom of the upper mold box 33 first so that when the lower plate 32 moves downward, it can be accurately pressed on the car seat back plate located on the lower mold 4. The two clamping rods 310 are respectively located on both sides of the covering skin 5. When the two clamping rods 310 make relative movement, the two sides of the covering leather 5 at the bottom of the upper mold box 33 will be clamped, so that the covering leather 5 can be firmly installed on the bottom of the upper mold box 33 to prevent the covering leather 5 from being displaced. Through the relative movement of the two clamping rods 310, the two sides of the covering leather 5 can be stably clamped to ensure that the covering leather 5 does not move at the bottom of the upper mold box 33. This fixing method effectively avoids the deviation or unevenness of the covering leather 5 during the entire covering process, ensuring the precise leather covering effect of the seat back panel. The covering leather 5 will not change position due to vibration, pressure or other factors under the clamping of the clamping rods 310, making the leather covering more stable and ensuring the accuracy of the leather when docking with the car seat back panel on the lower mold 4. When the threaded sleeve 38 makes relative motion, the rectangular rod 317 and the extrusion rod 318 will be driven to move, and the airbag 313 is located on the motion trajectory of the extrusion rod 318. When the extrusion rod 318 moves, it will squeeze the airbag 313. Lubricating oil is stored inside the airbag 313. When the airbag 313 is squeezed, the lubricating oil inside the airbag 313 will flow out through the oil outlet pipe 315. The end of the oil outlet pipe 315 away from the airbag 313 is located above the bidirectional screw rod 37. The lubricating oil that flows out can lubricate the bidirectional screw rod 37, and the lubricating oil will automatically flow out through the oil outlet pipe 315 when the airbag 313 is squeezed. This automatic lubrication design can ensure that the bidirectional screw rod 37 and other parts that may need lubrication always maintain a good lubrication state during movement. The lubricating oil can reduce friction, reduce wear, and extend the service life of mechanical parts.

[0035] Step 2: Place the leather material in the lower mold body 402, flatten the leather material, and press the upper mold downward to close the mold with the lower mold body 402 to press the leather material into shape. When the upper mold is pressed downward, it will first contact the four groups of buffer cylinders 406. At this time, the buffer cylinders 406 move downward under the impact, and the buffer springs 407 absorb the impact force and play a buffering role. Before closing the mold, the control component 403 can be used to start the electric push rod 40810 to drive the lifting block 40811 to move upward. The lifting block 40811 moves upward and drives the clamping rod 4088 to rotate to a horizontal state through the cooperation with the second cross bar 4089. At this time The clamping rod 4088 will clamp and limit the leather material to prevent it from moving during the mold closing process, which would affect the aesthetic appearance of the product. When the mold closing is completed, the control component 403 can be used to start the electric push rod 40810 to drive the lifting block 40811 to move downward and restore. At this time, the lifting block 40811 moves upward and drives the clamping rod 4088 to rotate and return to an inclined state through cooperation with the second cross bar 4089. At this time, the clamping rod 4088 no longer clamps the leather material. Subsequently, the hydraulic cylinder 4085 is turned on to drive the sliding seat 4084 to move so as to press the side edge of the leather material. The overall use is more convenient.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. Automatic leather covering equipment for car seat backboard, characterized by: It comprises a base (1), the top of the base (1) is fixedly connected to an extrusion platform (2), and the top of the base (1) is provided with a fixing component (3); The fixing assembly (3) comprises a round rod (31), one end of which is fixedly connected to the top of the base (1), a lowering plate (32) passes through the circumferential surface of the round rod (31), an upper mold box (33) is arranged at the bottom of the lowering plate (32), a vertical rod (34) is fixedly connected to the top of the base (1), a square plate (35) is fixedly connected to the side of the vertical rod (34), a motor (36) is fixedly connected to the side of the square plate (35), and an output shaft of the motor (36) is fixedly connected to the output shaft of the motor (36). A bidirectional screw rod (37) is fixedly connected, a threaded sleeve (38) is threadedly connected on the circumferential surface of the bidirectional screw rod (37), a first cross bar (39) is fixedly connected to the side of the threaded sleeve (38), a clamping rod (310) is fixedly connected to the side of the first cross bar (39), a limiting rod (312) is fixedly connected to the side of the motor (36), an end of the limiting rod (312) away from the motor (36) passes through the side of the threaded sleeve (38), and a covering skin (5) is provided at the bottom of the upper mold box (33).

2. A lower mold (4) is arranged on the top of the extrusion table (2); the lower mold (4) comprises a workbench (401); a lower mold body (402) is arranged on the top of the workbench (401); a control component (403) is arranged on the top of the workbench (401); a mounting seat (404) is fixedly connected to the top of the workbench (401); a sliding column (405) is fixedly connected to the top of the mounting seat (404); a buffer cylinder (406) is slidably connected to the surface of the sliding column (405); a buffer spring (407) is sleeved on the surface of the sliding column (405); a limit assembly (408) is arranged on the top of the workbench (401); the limit assembly (408) comprises a fixed seat (4081) and a pressing rod (4088); a slide groove (4082) is provided on the top of the fixed seat (4081); the slide groove The interior of (4082) is slidably connected to a slider (4083), the top of the slider (4083) is fixedly connected to a sliding seat (4084), the top of the fixed seat (4081) is fixedly installed with a hydraulic cylinder (4085), the output end of the hydraulic cylinder (4085) is fixedly connected to the sliding seat (4084), the top of the sliding seat (4084) is fixedly connected to a bracket (4086), the inner side of the bracket (4086) is fixedly connected to a central axis (4087), the clamping rod (4088) is rotatably connected to the central axis (4087), the inner side of the clamping rod (4088) is fixedly connected to a second cross bar (4089), the top of the fixed seat (4081) is fixedly installed with an electric push rod (40810), and the output end of the electric push rod (40810) is fixedly connected to a lifting block (40811).

3. The automatic leather covering equipment for automobile seat backboard according to claim 1 is characterized in that: The upper mold box (33) is located on the displacement track of the clamping rod (310), and two of the threaded sleeves (38) and the first cross bar (39) are provided, and the vertical center axes of the bidirectional screw rod (37) are symmetrical to each other; a plurality of the clamping rods (310) are provided, in groups of two, and are symmetrical to each other along the vertical center axis of the first cross bar (39), and a button (311) is provided on the side of the motor (36).

4. The automatic leather covering equipment for automobile seat backboards according to claim 1 is characterized in that: A plurality of vertical rods (34) are provided and are symmetrical to each other along the vertical center axis of the base (1); the first cross rod (39) and the clamping rod (310) are located at the bottom of the downward moving plate (32); an air bag (313) is fixedly connected to the side of the vertical rod (34); an oil outlet pipe (315) penetrates the side of the air bag (313); a rectangular rod (317) is fixedly connected to the top of the threaded sleeve (38); and an extrusion rod (318) is fixedly connected to the side of the rectangular rod (317).

5. The automatic leather covering equipment for automobile seat backboards according to claim 3 is characterized in that: The airbag (313) is located on the displacement track of the extrusion rod (318), and one end of the oil outlet pipe (315) away from the airbag (313) is located above the bidirectional screw rod (37); an oil inlet pipe (316) penetrates the side of the airbag (313), and a spring (314) is arranged inside the airbag (313).

6. The automatic leather covering equipment for automobile seat backboards according to claim 1 is characterized in that: In an initial state, both ends of the buffer spring (407) are in contact with the top of the mounting seat (404) and the bottom of the buffer cylinder (406); the surface of the buffer cylinder (406) is provided with anti-slip particles, and the buffer cylinder (406) is provided in four groups; the control component (403) is electrically connected to the electric push rod (40810) via a built-in wire.

7. The automatic leather covering equipment for automobile seat backboards according to claim 1 is characterized in that: The length of the slide groove (4082) is one third of the length of the fixed seat (4081); the lifting block (40811) is rotatably connected to the second cross bar (4089); the clamping rod (4088) is tilted in an initial state; the end of the clamping rod (4088) away from the central axis (4087) is close to the top of the lower mold body (402).

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