Release film winding device with cutting function

Abstract

The utility model discloses a release film winding device with a cutting function, which comprises a base, a winding mechanism used for winding a release film and automatically changing a roll is arranged on the base, and a rotating plate and a stepping motor used for driving the rotating plate to rotate at a certain angle are arranged on the winding mechanism. The two sides of the end face of the rotating plate are each provided with a winding assembly used for winding a release film, the upper portion and the lower portion of the end face of the rotating plate are each provided with a guide roller used for guiding the release film, and the base is provided with a cutting mechanism used for cutting off the release film and extruding the release film to the winding assemblies. According to the release film winding device, the situation that after the release film is cut off, the release film wound on the winding assembly is fluffy is avoided, and the situation that after the release film is cut off, the winding assembly which is not wound is separated from the release film which is just adhered to the winding assembly in the winding process is also avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of release film winding equipment, concretely to a release film winding device with cutting function. BACKGROUND

[0002] Release film refers to the film surface energy film, release film and specific material contact under limited conditions without adhesion, or slight adhesion, release film is also called stripping film, isolation film, separation film, blocking film, release film, film, plastic film, mask film, silicon oil film, silicon oil paper, anti-sticking film, skid film, tian paper and release paper, etc., release film processing needs to use winding equipment for winding.

[0003] After searching, patent publication No. CN219156017U discloses a kind of winding equipment for release film production, including U-shaped base and switch button, the both sides of U-shaped base top are all fixedly connected with side plate, the surface of side plate is equidistantly rotatably connected with several quick release mechanisms, quick release mechanism includes pivot, the first end of pivot surface is equipped with first connecting thread, the surface of first connecting thread is threadedly connected with locking threaded sleeve, the end of pivot is equipped with cross insertion hole, cross insertion hole inner chamber is inserted with cross insertion rod, the both ends of two cross insertion rods are respectively fixedly connected with film winding roller, the bottom of one side plate is fixedly installed with driving motor, the output end of driving motor is fixedly connected with driving wheel through side plate, the end of quick release mechanism close to driving motor is fixedly connected with transmission mechanism through side plate, the utility model discloses a kind of winding equipment for release film production, realize the film winding of film winding roller simultaneously, replace traditional single roll film, improve the speed of film winding.

[0004] The existing release film winding device is automatically changed and cut after winding, and the winding assembly after winding is wound on the remaining release film after cutting, and the release film is easily loose, and the release film is cut, and the winding assembly is not wound and the release film is easily separated during winding, so a release film winding device with cutting function is designed. UTILITY MODEL CONTENTS

[0005] In view of the defects or deficiencies of the release film winding device, the utility model aims to provide a release film winding device with cutting function, which avoids the release film being cut, the release film being wound on the winding assembly after winding, and the release film being cut, and the winding assembly being not wound and the release film being cut during winding.

[0006] To achieve the above-mentioned utility model purposes, the utility model adopts the following technical solutions:

[0007] The utility model provides a kind of release film winding device with cutting function, including base, the base is provided with the winding mechanism for winding and automatically changing roll to release film, the winding mechanism is provided with rotating plate and the stepping motor for driving rotating plate to rotate at certain angle, the end surface both sides of rotating plate are provided with the winding assembly for winding release film, the end surface of rotating plate is provided with the guide roller for guiding release film above and below;

[0008] The base is provided with a cutting mechanism for cutting and extruding the release film onto the winding assembly, and the base is provided with a limiting mechanism for limiting the release film wound on the winding assembly.

[0009] The cutting mechanism is provided with a cutting assembly for cutting the release film and a first limiting assembly for extruding the release film onto the winding assembly, and the cutting mechanism is provided with a first electric push rod for driving the cutting assembly and the first limiting assembly to move linearly in a certain direction.

[0010] The limiting mechanism is provided with a second limiting assembly for limiting the release film wound on the winding assembly and a second electric push rod for driving the second limiting assembly to move linearly in a certain direction.

[0011] Preferably, the stepping motor is installed above the rear end surface of the third mounting plate, the output shaft on the stepping motor penetrates the end surface of the third mounting plate and is connected with the rotating shaft through a shaft coupling, and the rotating shaft is installed at the center position of the rear end surface of the rotating plate. The third mounting plate is installed on the upper surface of the base.

[0012] The rear end surface of the rotating plate is installed with a hollow ring-shaped slide rail, the hollow ring-shaped slide rail is provided with an arc-shaped slide block, and the arc-shaped slide block is connected with the hollow ring-shaped slide rail through sliding connection. The rear end wall of the arc-shaped slide block is installed on the front end surface of the third mounting plate. The two sides of the rear end surface of the rotating plate are provided with second mounting brackets.

[0013] Preferably, the connecting shaft on the end wall of the guide roller is installed in the bearing on the end surface of the rotating plate.

[0014] The winding assembly is composed of an air inflation roller, a winding drum and a reduction motor. The winding drum is arranged on the circumferential outer wall of the air inflation roller. The connecting shaft on the end wall of the air inflation roller penetrates the bearing on the end surface of the rotating plate and is connected with the reduction motor through a shaft coupling. The reduction motor is arranged on the second mounting bracket, and the output shaft on the reduction motor penetrates the end wall of the second mounting bracket.

[0015] Preferably, the first electric push rod is installed at the top end of the first mounting frame, the first mounting frame is installed on one side of the rear end of the upper surface of the base, the bottom end of the first electric push rod penetrates the top end of the first mounting frame and is connected with the cutting assembly, and the bottom of the cutting assembly is provided with a first limiting assembly.

[0016] The second U-shaped connecting plate is arranged on the cutting assembly and is installed at the bottom end of the first electric push rod, the inner side of the second U-shaped connecting plate is provided with a reciprocating rodless cylinder, the reciprocating rodless cylinder is provided with a second mounting plate, and the second mounting plate is provided with a laser cutting head.

[0017] Preferably, the second electric push rod is installed on one side of the outer wall of the fourth mounting plate, and the fourth mounting plate is on the other side of the upper surface of the base, and the other end of the second electric push rod penetrates the outer wall of the fourth mounting plate and is connected with the second limiting assembly.

[0018] Preferably, the first limiting assembly and the second limiting assembly are both provided with a first mounting plate, one side of the outer wall of the first mounting plate is connected with the first U-shaped connecting plate through a compression structure, the inner side of the first U-shaped connecting plate is provided with a limiting roller, and the connecting shafts on the end walls at both ends of the limiting roller are respectively installed in the bearings on the outer walls on both sides of the first U-shaped connecting plate;

[0019] The first mounting plate on the first limiting assembly is installed at the bottom end of the second U-shaped connecting plate, and the first mounting plate on the second limiting assembly is installed at the other end of the second electric push rod.

[0020] Preferably, the compression structure is provided with a first connecting column, an installation groove is formed in the center of the end wall of one end of the first connecting column, the inside of the installation groove is provided with an extrusion plate, the outer wall of the extrusion plate and the groove wall of the installation groove are in clearance fit, a plurality of limiting blocks are arranged in an annular array on the circumferential outer wall of the extrusion plate, the other end of the limiting block is installed in the limiting groove, the outer wall of the limiting block and the groove wall of the limiting groove are in clearance fit, and the limiting grooves are arranged in an annular array on the groove wall of the installation groove.

[0021] Preferably, a spring is arranged between the outer wall of one side of the extrusion plate and the end wall of one end of the installation groove, a second limiting column is installed at the center of the outer wall of one side of the extrusion plate, a first limiting column is installed at the center of the end wall of one end of the installation groove, the first limiting column and the second limiting column are located on the inner side of the spring, and a second connecting column is installed at the center of the outer wall of the other side of the extrusion plate.

[0022] The other end of the first connecting column is installed on the outer wall of one side of the first mounting plate, and the other end of the second connecting column is installed on the outer wall of one side of the first U-shaped connecting plate.

[0023] Compared with the prior art, the above one or more technical solutions have the following beneficial effects:

[0024] 1、In the utility model, when the cutting mechanism cuts the release film, the second limiting component on the limiting mechanism can cause a certain acting force on the release film on the winding assembly after winding, when the winding assembly after winding winds the remaining release film after cutting, the second limiting component can limit the release film on the winding assembly after winding, thereby avoiding the situation that the wound release film on the winding assembly after winding is loose after the release film is cut.

[0025] 2、In the utility model, when the cutting mechanism cuts the release film, the second limiting component on the limiting mechanism can cause a certain acting force on the release film on the winding assembly after winding, when the winding assembly after winding winds the remaining release film after cutting, the second limiting component can limit the release film on the winding assembly after winding, thereby avoiding the situation that the wound release film on the winding assembly after winding is loose after the release film is cut. BRIEF DESCRIPTION OF DRAWINGS

[0026] The drawings constituting a part of the specification of the utility model are used to provide further understanding of the utility model, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute improper limitation on the utility model.

[0027] Figure 1 is the overall three-dimensional structure of the utility model Figure 1 .

[0028] Figure 2 is the overall three-dimensional structure of the utility model Figure 2 .

[0029] Figure 3 is the structure diagram of the cutting mechanism of the utility model.

[0030] Figure 4 is the structure diagram of the limiting mechanism of the utility model.

[0031] Figure 5 is the structure schematic diagram of the cutting assembly of the utility model.

[0032] Figure 6 is the structure schematic diagram of the winding mechanism of the utility model Figure 1 .

[0033] Figure 7 is the structure schematic diagram of the winding mechanism of the utility model Figure 2 .

[0034] Figure 8 is the structure schematic diagram of the rotary plate of the utility model Figure 1 .

[0035] Figure 9 is the structure schematic diagram of the rotary plate of the utility model Figure 2 .

[0036] Figure 10 is the structure schematic diagram of the winding assembly of the utility model.

[0037] Figure 11 is the structure schematic diagram of the first limiting assembly and the second limiting assembly of the utility model.

[0038] Figure 12 is the sectional view of the compression structure of the utility model.

[0039] In the figure:

[0040] Cutting mechanism; 110, first limiting assembly; 120, cutting assembly; 130, first electric push rod; 140, first mounting frame;

[0041] Limiting roller; 112, first U-shaped connecting plate; 113, compression structure; 1131, limiting block; 1132, limiting groove; 1133, spring; 1134, first limiting column; 1135, first connecting column; 1136, mounting groove; 1137, second connecting column; 1138, second limiting column; 1139, extrusion plate; 114, first mounting plate;

[0042] 121, laser cutting head; 122, second mounting plate; 123, reciprocating rodless cylinder; 124, second U-shaped connecting plate;

[0043] 200, winding mechanism; 210, guide roller; 220, rotary plate; 230, winding assembly; 240, third mounting plate; 250, stepping motor;

[0044] 221, second mounting frame; 222, hollow annular slide rail; 223, arc-shaped sliding block; 224, rotating shaft;

[0045] 231, air inflation roller; 232, winding cylinder; 233, speed reducer motor;

[0046] 300, limiting mechanism; 310, second limiting assembly; 320, second electric push rod; 330, fourth mounting plate;

[0047] 400, base. DETAILED DESCRIPTION

[0048] The utility model will be further described below in combination with the drawings and examples.

[0049] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as generally understood by those skilled in the art to which the utility model belongs.

[0050] It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0051] As shown in Figures 1-12 A release film winding device with cutting function, comprising a base 400, the base 400 is provided with a winding mechanism 200 for winding and automatically changing the winding of the release film, the winding mechanism 200 is provided with a rotating plate 220 and a stepping motor 250 for driving the rotating plate 220 to rotate at a certain angle, the end surface of the rotating plate 220 is provided with a winding assembly 230 for winding the release film on both sides, and the end surface of the rotating plate 220 is provided with a guide roller 210 above and below for guiding the release film;

[0052] The base 400 is provided with a cutting mechanism 100 for cutting the release film and extruding the release film onto the winding assembly 230, and the base 400 is provided with a limiting mechanism 300 for limiting the release film wound on the winding assembly 230;

[0053] The cutting mechanism 100 is provided with a cutting assembly 120 for cutting the release film and a first limiting assembly 110 for extruding the release film onto the winding assembly 230, and the cutting mechanism 100 is provided with a first electric push rod 130 for driving the cutting assembly 120 and the first limiting assembly 110 to move linearly in a certain direction;

[0054] The second limiting assembly 310 for limiting the release film wound on the winding assembly 230 is arranged on the limiting mechanism 300, and the second electric push rod 320 for driving the second limiting assembly 310 to move linearly in a certain direction is arranged on the limiting mechanism 300.

[0055] The stepping motor 250 is installed above the rear end surface of the third mounting plate 240, the output shaft on the stepping motor 250 penetrates the end surface of the third mounting plate 240 and is connected with the rotating shaft 224 through a shaft coupling, and the rotating shaft 224 is installed at the center position of the rear end surface of the rotating plate 220. The third mounting plate 240 is installed on the upper surface of the base 400. When the stepping motor 250 is started, the rotating shaft 224 is driven to rotate at a certain rotation angle, and the rotating plate 220 is driven to rotate at a certain rotation angle.

[0056] The rear end surface of the rotating plate 220 is provided with a hollow annular slide rail 222, and the hollow annular slide rail 222 is provided with an arc-shaped slide block 223, and the arc-shaped slide block 223 is in sliding connection with the hollow annular slide rail 222. The rear end wall of the arc-shaped slide block 223 is installed on the front end surface of the third mounting plate 240. The rear end surface of the rotating plate 220 is provided with a second mounting bracket 221 on both sides. The hollow annular slide rail 222 and the arc-shaped slide block 223 are arranged to enhance the stability of the rotating plate 220 during rotation.

[0057] The connecting shaft on one end wall of the guide roller 210 is installed in the bearing on the end surface of the rotating plate 220. The guide roller 210 is arranged to guide the release film during the winding process.

[0058] The winding assembly 230 is composed of an air inflation roller 231, a winding cylinder 232 and a speed reducer 233. The winding cylinder 232 is arranged on the circumferential outer wall of the air inflation roller 231. The connecting shaft on one end wall of the air inflation roller 231 penetrates the bearing on the end surface of the rotating plate 220 and is connected with the speed reducer 233 through a shaft coupling. The speed reducer 233 is arranged on the second mounting bracket 221, and the output shaft on the speed reducer 233 penetrates the end wall of the second mounting bracket 221. When the speed reducer 233 is started, the air inflation roller 231 is driven to rotate, and the winding cylinder 232 is driven to rotate. The winding cylinder 232 rotates to wind the release film.

[0059] The first electric push rod 130 is installed at the top end of the first mounting bracket 140, and the first mounting bracket 140 is installed on one side of the rear end of the upper surface of the base 400. The bottom end of the first electric push rod 130 penetrates the top end of the first mounting bracket 140 and is connected with the cutting assembly 120. The bottom of the cutting assembly 120 is provided with the first limiting assembly 110.

[0060] The second U-shaped connecting plate 124 is arranged on the cutting assembly 120, and is installed at the bottom end of the first electric push rod 130. The inner side of the second U-shaped connecting plate 124 is provided with a reciprocating rodless cylinder 123. The reciprocating rodless cylinder 123 is provided with a second mounting plate 122. The second mounting plate 122 is provided with a laser cutting head 121. The laser cutting head 121 is arranged to cut the release film by laser.

[0061] The second electric push rod 320 is installed on one side outer wall of the fourth mounting plate 330, and the fourth mounting plate 330 is arranged on the other side of the upper surface of the base 400. The other end of the second electric push rod 320 penetrates through the outer wall of the fourth mounting plate 330 and is connected with the second limiting assembly 310.

[0062] The first limiting assembly 110 and the second limiting assembly 310 are both provided with a first mounting plate 114. One side outer wall of the first mounting plate 114 is connected with the first U-shaped connecting plate 112 through a compression structure 113. The inner side of the first U-shaped connecting plate 112 is provided with a limiting roller 111. The connecting shafts on the two end walls of the limiting roller 111 are respectively installed in the bearings on the two side outer walls of the first U-shaped connecting plate 112. The compression structure 113 is arranged to bear a certain force during the winding process of the winding assembly 230 on the first limiting assembly 110 or the second limiting assembly 310. At this time, the compression structure 113 is compressed to a certain extent, so that the winding assembly 230 can continue to wind the release film.

[0063] The first mounting plate 114 on the first limiting assembly 110 is installed at the bottom end of the second U-shaped connecting plate 124. The first mounting plate 114 on the second limiting assembly 310 is installed at the other end of the second electric push rod 320.

[0064] The compression structure 113 is provided with a first connecting column 1135. An installation groove 1136 is arranged at the center position of the end wall of one end of the first connecting column 1135. The inside of the installation groove 1136 is provided with an extrusion plate 1139. The outer wall of the extrusion plate 1139 and the groove wall of the installation groove 1136 are in clearance fit. Limiting blocks 1131 are arranged in a ring array on the circumferential outer wall of the extrusion plate 1139. The other end of the limiting block 1131 is installed in a limiting groove 1132. The outer wall of the limiting block 1131 and the groove wall of the limiting groove 1132 are in clearance fit. The limiting groove 1132 is arranged in a ring array on the groove wall of the installation groove 1136. Because the outer wall of the extrusion plate 1139 and the groove wall of the installation groove 1136 are in clearance fit, and the outer wall of the limiting block 1131 and the groove wall of the limiting groove 1132 are in clearance fit, the extrusion plate 1139 can be limited and guided in movement.

[0065] The spring 1133 is arranged between one side outer wall of the extrusion plate 1139 and the end wall of one end of the mounting groove 1136, the second limiting column 1138 is arranged at the center position of one side outer wall of the extrusion plate 1139, the first limiting column 1134 is arranged at the center position of the end wall of one end of the mounting groove 1136, and the first limiting column 1134 and the second limiting column 1138 are both located on the inner side of the spring 1133;

[0066] The other end of the first connecting column 1135 is arranged on one side outer wall of the first mounting plate 114, and the other end of the second connecting column 1137 is arranged on one side outer wall of the first U-shaped connecting plate 112.

[0067] Working principle: in use, when one winding assembly 230 on the winding mechanism 200 completes winding of the release film, the stepping motor 250 on the winding mechanism 200 is started, the stepping motor 250 is started to drive the rotating plate 220 to rotate by a certain angle, the first electric push rod 130 is started to drive the first limiting assembly 110 to extrude the release film on another winding assembly 230, the winding cylinder 232 on another winding assembly 230 and the release film are adhered, the reciprocating rodless air cylinder 123 and the laser cutting head 121 on the cutting assembly 120 are started, the reciprocating rodless air cylinder 123 drives the laser cutting head 121 to move linearly in a certain direction, the laser cutting head 121 cuts the release film linearly in a certain direction, another winding assembly 230 preliminarily winds the release film after the cutting assembly 120 cuts the release film, the first limiting assembly 110 also causes a certain force on the release film on another winding assembly 230, the first limiting assembly 110 is moved upward to a certain position after another winding assembly 230 winds a certain number of turns, so that the first limiting assembly 110 no longer causes a certain force on the release film on another winding assembly 230, at this time, the release film on another winding assembly 230 will not be separated in the winding process, thereby avoiding the separation of the unwound winding assembly 230 and the just adhered release film in the winding process after the release film is cut, the second electric push rod 320 is started to drive the second limiting assembly 310 to cause a certain force on the release film on the winding assembly 230 after winding before the cutting assembly 120 cuts the release film, the second limiting assembly 310 can limit the release film on the winding assembly 230 after winding when the winding assembly 230 after winding winds the remaining release film after cutting, thereby avoiding the release film on the winding assembly 230 after winding from being fluffy after being cut.

[0068] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A release film winding device having a cutting function, comprising a base (400), characterized in that: The base (400) is provided with a winding mechanism (200) for winding and automatically changing the release film, the winding mechanism (200) is provided with a rotating plate (220) and a stepping motor (250) for driving the rotating plate (220) to rotate at an angle, the end surface of the rotating plate (220) is provided with a winding assembly (230) for winding the release film on both sides, and the end surface of the rotating plate (220) is provided with a guide roller (210) above and below for guiding the release film; The base (400) is provided with a cutting mechanism (100) for cutting and extruding the release film onto the winding assembly (230), and the base (400) is provided with a limiting mechanism (300) for limiting the release film wound on the winding assembly (230); The cutting mechanism (100) is provided with a cutting assembly (120) for cutting the release film and a first limiting assembly (110) for extruding the release film onto the winding assembly (230), and the cutting mechanism (100) is provided with a first electric push rod (130) for driving the cutting assembly (120) and the first limiting assembly (110) to move linearly in a certain direction; The limiting mechanism (300) is provided with a second limiting assembly (310) for limiting the release film wound on the winding assembly (230) and a second electric push rod (320) for driving the second limiting assembly (310) to move linearly in a certain direction.

2. The release film winding device with a cutting function according to claim 1, characterized in that: The stepping motor (250) is installed above the rear end surface of the third mounting plate (240), the output shaft of the stepping motor (250) penetrates the end surface of the third mounting plate (240) and is connected with the rotating shaft (224) through the shaft coupling, and the rotating shaft (224) is installed at the center position of the rear end surface of the rotating plate (220), and the third mounting plate (240) is installed on the upper surface of the base (400); The rear end surface of the rotating plate (220) is provided with a hollow ring-shaped slide rail (222), the hollow ring-shaped slide rail (222) is provided with an arc-shaped slide block (223), and the arc-shaped slide block (223) and the hollow ring-shaped slide rail (222) are connected in sliding mode, the rear end wall of the arc-shaped slide block (223) is installed on the front end surface of the third mounting plate (240), and the two sides of the rear end surface of the rotating plate (220) are provided with a second mounting frame (221).

3. The release film winding device with a cutting function according to claim 1, characterized in that: The connecting shaft on one end of the end wall of the guide roller (210) is installed in the bearing on the end surface of the rotating plate (220); The winding assembly (230) is combined by the air inflation roller (231), the winding cylinder (232) and the speed reducer motor (233), the circumferential outer wall of the air inflation roller (231) is provided with the winding cylinder (232), the connecting shaft on the end wall of the air inflation roller (231) penetrates the bearing on the end face of the rotating plate (220) and is connected with the speed reducer motor (233) through the shaft coupling, the speed reducer motor (233) is arranged on the second mounting frame (221), and the output shaft on the speed reducer motor (233) penetrates the end wall of the second mounting frame (221).

4. The release film winding device with a cutting function according to claim 1, characterized in that: The first electric push rod (130) is installed at the top end of the first mounting frame (140), the first mounting frame (140) is installed on one side of the rear end of the upper surface of the base (400), the bottom end of the first electric push rod (130) penetrates the top end of the first mounting frame (140) and is connected with the cutting assembly (120), and the bottom of the cutting assembly (120) is provided with the first limiting assembly (110). The cutting assembly (120) is provided with the second U-shaped connecting plate (124), and the second U-shaped connecting plate (124) is installed at the bottom end of the first electric push rod (130); the inner side of the second U-shaped connecting plate (124) is provided with the reciprocating rodless air cylinder (123); the reciprocating rodless air cylinder (123) is provided with the second mounting plate (122); and the second mounting plate (122) is provided with the laser cutting head (121).

5. The release film winding device with a cutting function according to claim 1, characterized in that: The second electric push rod (320) is installed on one side of the outer wall of the fourth mounting plate (330), and the fourth mounting plate (330) is on the other side of the upper surface of the base (400); the other end of the second electric push rod (320) penetrates the outer wall of the fourth mounting plate (330) and is connected with the second limiting assembly (310).

6. The release film winding device with a cutting function according to claim 1, characterized in that: The first limiting assembly (110) and the second limiting assembly (310) are provided with the first mounting plate (114), one side of the outer wall of the first mounting plate (114) is connected with the first U-shaped connecting plate (112) through the compression structure (113), the inner side of the first U-shaped connecting plate (112) is provided with the limiting roller (111), and the connecting shafts on the two end walls of the limiting roller (111) are installed in the bearings on the two outer walls of the first U-shaped connecting plate (112) respectively; The first mounting plate (114) on the first limiting assembly (110) is installed at the bottom end of the second U-shaped connecting plate (124), and the first mounting plate (114) on the second limiting assembly (310) is installed at the other end of the second electric push rod (320).

7. The release film winding device with a cutting function according to claim 6, characterized in that: The compression structure (113) is provided with a first connecting column (1135), an end wall center position of one end of the first connecting column (1135) is provided with a mounting slot (1136), the inside of the mounting slot (1136) is provided with an extrusion plate (1139), and the outer wall of the extrusion plate (1139) and the slot wall of the mounting slot (1136) are gap-fitted, a limiting block (1131) is arranged in a ring array on the circumferential outer wall of the extrusion plate (1139), the other end of the limiting block (1131) is mounted in a limiting slot (1132), the outer wall of the limiting block (1131) and the slot wall of the limiting slot (1132) are gap-fitted, and the limiting slot (1132) is arranged in a ring array on the slot wall of the mounting slot (1136).

8. The release film winding device with a cutting function according to claim 7, characterized in that: A spring (1133) is arranged between the outer wall of one side of the extrusion plate (1139) and the end wall of one end of the mounting slot (1136), a second limiting column (1138) is mounted on the center position of the outer wall of one side of the extrusion plate (1139), a first limiting column (1134) is mounted on the center position of the end wall of one end of the mounting slot (1136), the first limiting column (1134) and the second limiting column (1138) are located on the inside of the spring (1133), and a second connecting column (1137) is mounted on the center position of the outer wall on the other side of the extrusion plate (1139). The other end of the first connecting column (1135) is mounted on the outer wall of one side of the first mounting plate (114), and the other end of the second connecting column (1137) is mounted on the outer wall of one side of the first U-shaped connecting plate (112).

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