Pressing equipment for PVC printing film production

Abstract

The invention discloses pressing equipment for PVC printing film production, and belongs to the technical field of PVC printing film production. The pressing equipment comprises a frame body, a first unwinding assembly is arranged on one side of the top of the frame body, a second unwinding assembly is arranged on one side of the bottom of the frame body, and two rectangular frames are arranged on the top of the second unwinding assembly; and two inner cylinders and a flattening roller assembly are arranged between the two rectangular frames. According to the device, an electric push rod drives a sliding plate, a sliding block and a fixing plate to move, at the moment, the fixing plate can drive a connecting plate connected with the connecting rod mechanism to move at the same time through the connecting rod mechanism which is arranged in a crossed mode, and therefore the fixing plate and the connecting plate drive an outer roller body and a middle roller body to move at equal intervals; the flattening roller assemblies are arranged between the middle roller bodies, so that the use distance between the multiple middle roller bodies is adjusted, then the stretching use distance between the flattening roller assemblies is adjusted, the stretching and flattening acting force of the equipment on the PVC printing film is increased, and the flattening effect of the equipment on the PVC printing film is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of PVC printing film production, and in particular relates to a laminating device for PVC printing film production. Background Art

[0002] PVC printed film is a film material made of polyvinyl chloride (PVC) as the base material through printing and processing. It has the characteristics of waterproof, moisture-proof, corrosion-resistant and wear-resistant. Therefore, it is often used for decoration, advertising and logo on containers. In the production process of PVC printed film, in order to ensure its overall use effect, it is necessary to combine PVC printed film with other materials through lamination equipment.

[0003] For example, Chinese patent document (CN115195144B) discloses a quantum dot film and BLT film composite device with the function of uniformly coating glue, comprising a first bracket, a glue coating mechanism being provided on the left side of the upper side of the first bracket, and a pre-contact mechanism being provided on the right side of the upper side of the first bracket. The invention avoids bubbles in the composite film due to uneven glue distribution when the BLT film contacts the quantum dot film, thereby reducing the quality of the composite film, by means of the glue coating mechanism; and avoids slippage between the BLT film and the quantum dot film layer during bonding by means of the pre-contact mechanism. However, the device may cause wrinkles in the film conveyance process during use, thereby affecting the subsequent processing quality of the film. Therefore, improvements are needed. Summary of the invention

[0004] The purpose of the present invention is to propose a laminating device for producing PVC printed film in order to solve the problem that wrinkles may be generated during film transportation in the prior art, which may affect the quality of subsequent processing of the film.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A laminating device for producing PVC printed films, comprising a frame, a first unwinding assembly is arranged on one side of the top of the frame, a second unwinding assembly is arranged on one side of the bottom of the frame, two rectangular frames are arranged on the top of the second unwinding assembly, two inner cylinders and a flattening roller assembly are arranged between the two rectangular frames, a static electricity removal assembly is arranged on one side of the inner cylinder, and an adjustment assembly and an auxiliary flattening assembly are respectively arranged inside the inner cylinder; The auxiliary flattening assembly includes an electric push rod, which is fixedly connected to the inner wall of the inner cylinder through a fixed block, one end of the electric push rod output shaft is fixedly connected to a sliding plate, a sliding groove is provided on one side of the sliding plate, a sliding block is slidably connected inside the sliding groove, the sliding block is fixedly connected to the fixed plate on the side away from the sliding plate, a cross-connected connecting rod mechanism is hinged on one side of the fixed plate through a pin shaft, the intersection of the connecting rod mechanism is rotatably connected to a connecting plate through a fixed shaft, and the connecting plate is slidably connected to the top of the sliding block.

[0006] As a further description of the above technical solution: The cross-sectional shape of the sliding plate is set to be annular, and the sliding plate is slidably connected inside the inner cylinder, the sliding groove is set on the side away from the electric push rod, and the cross-sectional shape of the sliding groove is set to be I-shaped, and the sliding block is slidably connected inside the sliding groove.

[0007] As a further description of the above technical solution: The flattening roller assembly includes a plurality of connecting roller bodies distributed in a circular array on the outer peripheral side of the inner cylinder, the bottom of the connecting roller body is fixedly connected to the outer wall of the inner cylinder through a limiting lifting sleeve, a plurality of intermediate roller bodies are arranged on both sides of the connecting roller body, and an outer roller body is arranged on the other side of the intermediate roller body.

[0008] As a further description of the above technical solution: An annular groove is provided on one side of the connecting roller body and the middle roller body, and a connecting tube is slidably connected inside the annular groove. The cross-sectional shape of the connecting tube is set to be annular, and one side of the connecting tube is fixedly connected to the outer wall of the middle roller body and the outer roller body, and the outer roller bodies, the middle roller bodies and the connecting tubes on both sides are set in opposite directions.

[0009] As a further description of the above technical solution: One side of the bottom of the rectangular frame is fixedly connected to the outer wall of the frame body through a support block, and one side of the bottom of the frame body is provided with a winding assembly, and the winding assembly is arranged on a side away from the first unwinding assembly.

[0010] As a further description of the above technical solution: Both ends of the inner cylinder are fixedly connected with a hollow shaft, and the other end of the hollow shaft rotates a limit block through a bearing, and the limit block is slidably connected to the inside of the rectangular frame. One side of the limit block is rotatably connected to the limit rod, and the limit rod is arranged inside the relative rectangular frame. Screws are arranged on the opposite sides of the two limit blocks, and the screws are threadedly connected to the inside of the rectangular frame, and the other end of the screw extends to the outside of the rectangular frame and is fixedly connected to a rotating handle.

[0011] As a further description of the above technical solution: The static electricity removal component includes a rotating sleeve, which is rotatably connected to the outer peripheral side of the hollow shaft, and one side of the rotating sleeve is fixedly connected to one side of the rectangular frame. One side of the rotating sleeve is connected to an air inlet pipe, and the other side of the air inlet pipe is connected to an external ion supply device.

[0012] As a further description of the above technical solution: The adjustment component includes a rotating shaft, which is rotatably connected inside the inner cylinder, and one end of the rotating shaft extends to the outside of the hollow shaft and is fixedly connected to a hand crank, and the rotating shaft is rotatably connected inside the hollow shaft.

[0013] As a further description of the above technical solution: A plurality of protrusions are distributed in a circular array on the outer circumference of the rotating shaft, a plurality of rollers are arranged between the plurality of protrusions, mounting plates are fixedly connected to both sides of the outer sides of the rollers, a connecting frame is fixedly connected to the side of the mounting plate away from the rollers, and the other side of the connecting frame extends to the outside and is slidingly and sealingly connected to the outer roller body and the middle roller body.

[0014] As a further description of the above technical solution: The connecting frame is slidably connected to the inner cylinder, and springs are provided on both sides of the connecting frame. The two sides of the spring are respectively fixedly connected to the mounting plate and the inner wall of the inner cylinder. A cavity is opened inside the connecting frame, and the cavity is connected to the inner cylinder. One side of the cavity is connected to a fan-shaped inner cavity, which is located inside the connecting cylinder, and the other side of the fan-shaped inner cavity is connected to multiple air outlets. A rectangular cavity is opened inside the mounting plate, and the sliding block is slidably connected inside the rectangular cavity. The fixed plate and the connecting plate are both slidably connected to the inside of the connecting frame.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In the present invention, by providing a flattening roller assembly and an auxiliary flattening assembly, the flattening roller assembly will generate an axial force from the connecting roller body to the connecting cylinders on both sides, the middle roller body and the outer roller body when rotating, so as to flatten the PVC printed film from the center to both sides, reduce the wrinkles of the PVC printed film in the production process, effectively improve the production quality of the equipment, and enable the electric push rod to drive the sliding plate, the sliding block and the fixed plate to move. At this time, the fixed plate will simultaneously drive the connecting plate connected thereto to move through the cross-arranged connecting rod mechanism, and under the action of the connecting rod mechanism, the fixed plate and the connecting plate are moved equidistantly, so that the fixed plate and the connecting plate respectively drive the outer roller body and the middle roller body to move equidistantly, so as to adjust the use distance between the multiple middle roller bodies, and then adjust the stretching use distance between the flattening roller assemblies, so that the equipment increases the stretching and flattening force on the PVC printed film, thereby greatly improving the flattening effect of the equipment on the PVC printed film, and preventing the subsequent lamination quality of the PVC printed film from being affected.

[0016] 2. In the present invention, through the setting of the adjustment component, the staff drives the connecting shaft, the rotating shaft and the multiple protrusions to rotate through the hand crank, so that the protrusions squeeze the roller, the mounting plate and the spring, so that the mounting plate drives the connecting frame, the outer roller body, the middle roller body, the connecting cylinder and the connecting roller body to move away from the inner cylinder, so as to expand the contact area and pressure distribution between the outer roller body, the middle roller body and the connecting roller body and the PVC printed film, so that the PVC printed film is more evenly distributed on the flattening roller assembly, further improving the flattening effect of the equipment on the PVC printed film, thereby effectively improving the processing quality of the equipment.

[0017] 3. In the present invention, the external hot air is introduced into the external ion device through the static electricity removal component, and then the hot air gas with positive ions is transported to the inside of the inner cylinder through the air inlet pipe and the rotating sleeve. Thereafter, it is transported to between two corresponding middle rollers through the cavity, the fan-shaped cavity and the air outlet. The output tiny hot air gas helps to improve the softness of the PVC printed film, and in combination with the axial force of the outer roller and the middle roller, the stretching and flattening effect of the PVC printed film is further improved. The positive ions carried help reduce the friction static electricity between the outer roller and the middle roller and the PVC printed film, which not only prevents the stable transmission effect of the PVC printed film from being affected, but also reduces the adhesion of external impurities, further improving the flattening and pressing effects of the equipment on the PVC printed film. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the overall three-dimensional structure of the present invention from another viewing angle; Figure 3 It is a schematic diagram of the overall structure of the rectangular frame in the present invention; Figure 4 It is a schematic diagram of the overall three-dimensional structure of the flattening roller assembly in the present invention; Figure 5 For the present invention Figure 4 A local enlarged structural schematic diagram; Figure 6 It is a schematic diagram of the internal three-dimensional structure of the inner cylinder in the present invention; Figure 7 It is a schematic diagram of a partial three-dimensional structure of the adjustment component in the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the local enlarged structure at B; Fig. 9 It is a schematic diagram of a partially disassembled three-dimensional structure of a flattening roller assembly in the present invention; Fig.10 For the present invention Fig. 9Schematic diagram of the local enlarged structure at C.

[0019] Legend: 1. Frame; 2. First unwinding assembly; 3. Second unwinding assembly; 4. Rewinding assembly; 5. Flattening roller assembly; 501. Outer roller body; 502. Middle roller body; 503. Connecting cylinder; 504. Connecting roller body; 6. Inner cylinder; 7. Adjusting assembly; 701. Rotating shaft; 702. Connecting shaft; 703. Hand crank; 704. Bump; 705. Roller; 706. Mounting plate; 707. Spring; 708. Connecting frame; 8. Anti-static assembly; 801. Rotating sleeve; 802. Air inlet pipe; 803. Cavity; 804. Air outlet; 9. Auxiliary flattening assembly; 901. Electric push rod; 902. Sliding plate; 903. Sliding groove; 904. Sliding block; 905. Fixed plate; 906. Link mechanism; 907. Connecting plate; 10. Rectangular frame; 11. Hollow shaft; 12. Limit block. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-Figure 10 The present invention provides a technical solution: a laminating device for producing PVC printed films, comprising a frame 1, a first unwinding assembly 2 is arranged on one side of the top of the frame 1, a second unwinding assembly 3 is arranged on one side of the bottom of the frame 1, two rectangular frames 10 are arranged on the top of the second unwinding assembly 3, two inner cylinders 6 and a flattening roller assembly 5 are arranged between the two rectangular frames 10, a static electricity removal assembly 8 is arranged on one side of the inner cylinder 6, and an adjustment assembly 7 and an auxiliary flattening assembly 9 are respectively arranged inside the inner cylinder 6.

[0022] The auxiliary flattening assembly 9 includes an electric push rod 901, which is fixedly connected to the inner wall of the inner cylinder 6 through a fixed block. One end of the output shaft of the electric push rod 901 is fixedly connected to a sliding plate 902. A sliding groove 903 is provided on one side of the sliding plate 902. A sliding block 904 is slidably connected inside the sliding groove 903. The sliding block 904 is fixedly connected to a fixed plate 905 on the side away from the sliding plate 902. A cross-connected connecting rod mechanism 906 is hinged on one side of the fixed plate 905 through a pin shaft. The intersection of the connecting rod mechanism 906 is rotatably connected to a connecting plate 9 through a fixed axis. 07, the connecting plate 907 is slidably connected to the top of the sliding block 904, the cross-sectional shape of the sliding plate 902 is set to be annular, and the sliding plate 902 is slidably connected to the inside of the inner cylinder 6, the slide groove 903 is set on the side away from the electric push rod 901, and the cross-sectional shape of the slide groove 903 is set to be I-shaped, the sliding block 904 is slidably connected to the inside of the slide groove 903, and the flattening roller assembly 5 includes a plurality of connecting roller bodies 504 distributed in a circumferential array on the outer peripheral side of the inner cylinder 6, the bottom of the connecting roller body 504 is fixedly connected to the outer wall of the inner cylinder 6 through a limiting lifting sleeve, and both sides of the connecting roller body 504 A plurality of intermediate roller bodies 502 are provided, an outer roller body 501 is provided on the other side of the intermediate roller body 502, an annular groove is provided on one side of the connecting roller body 504 and the inner side of the intermediate roller body 502, a connecting cylinder 503 is slidably connected inside the annular groove, the cross-sectional shape of the connecting cylinder 503 is set to be annular, and one side of the connecting cylinder 503 is fixedly connected to the outer wall of the intermediate roller body 502 and the outer roller body 501, the outer roller bodies 501, the intermediate roller bodies 502 and the connecting cylinder 503 on both sides are arranged in opposite directions, and one side of the bottom of the rectangular frame 10 is fixedly connected to the outer wall of the frame body 1 through a support block. A winding assembly 4 is provided on one side of the bottom of the frame body 1, and the winding assembly 4 is arranged on the side away from the first unwinding assembly 2. Hollow shafts 11 are fixedly connected at both ends of the inner cylinder 6, and a limit block 12 is rotated at the other end of the hollow shaft 11 through a bearing. The limit block 12 is slidably connected to the inside of the rectangular frame 10, and one side of the limit block 12 is rotatably connected to a limit rod, and the limit rod is arranged inside the relative rectangular frame 10. Screws are provided on the opposite sides of the two limit blocks 12, and the screws are threadedly connected to the inside of the rectangular frame 10, and the other end of the screws extends to the outside of the rectangular frame 10 and is fixedly connected to a rotating handle.

[0023] Specific implementation method: first move the equipment to a suitable place, connect the external driving device to the hollow shaft 11, and then install the external pressing mechanism to a suitable position on the top of the frame 1, and then place the PVC printed film and protective film to be processed on the second unwinding assembly 3 and the first unwinding assembly 2 respectively, and place one end of each of them between the flattening roller assembly 5 and the limiting rod respectively, and perform heat pressing on it through the external pressing mechanism, and finally perform the winding operation on the pressed PVC printed film through the winding assembly 4. During this process, the hollow shaft 11, the inner cylinder 6 and the flattening roller assembly 5 are driven to rotate by the external driving device, and the flattening roller assembly 5 will generate an axial force from the connecting roller body 504 to the connecting cylinders 503 on both sides, the middle roller body 502 and the outer roller body 501 when rotating, so as to flatten the PVC printed film from the center to both sides, thereby reducing the wrinkles of the PVC printed film during the production process and effectively improving the production quality of the equipment. It is necessary to start the hand crank 703 and the electric push rod 901, and the electric push rod 901 drives the sliding plate 902 to move, and the sliding plate 902 drives the sliding block 904 and the fixed plate 905 to move through the I-shaped slide groove 903. At this time, the fixed plate 905 will drive the connecting plate 907 connected to it to move through the cross-arranged connecting rod mechanism 906. Under the action of the connecting rod mechanism 906, the fixed plate 905 and the connecting plate 907 move equidistantly, so that the fixed plate 905 and the connecting plate 907 respectively drive the outer roller body 501 and the middle roller body 502 to move equidistantly, so as to adjust the use distance between the multiple middle roller bodies 502, and then adjust the stretching use distance between the flattening roller assemblies 5, so that the equipment increases the stretching and flattening force on the PVC printed film, thereby greatly improving the flattening effect of the equipment on the PVC printed film, and preventing the subsequent lamination quality of the PVC printed film from being affected.

[0024] The static electricity removal component 8 includes a rotating sleeve 801, which is rotatably connected to the outer peripheral side of the hollow shaft 11, and one side of the rotating sleeve 801 is fixedly connected to one side of the rectangular frame 10. One side of the rotating sleeve 801 is connected to an air inlet pipe 802, and the other side of the air inlet pipe 802 is connected to an external ion supply device.

[0025] Specific implementation method: external hot air is introduced into the external ion device, and then the hot air gas with positive ions is transported to the inside of the inner cylinder 6 through the air inlet pipe 802 and the rotating sleeve 801. Thereafter, it is transported to between the two corresponding middle rollers 502 through the cavity 803, the fan-shaped cavity and the air outlet 804. The output of the tiny hot air gas helps to improve the softness of the PVC printed film, and in conjunction with the axial force of the outer roller 501 and the middle roller 502, the stretching and flattening effect of the PVC printed film is further improved. The carried positive ions help reduce the friction static electricity between the outer roller 501 and the middle roller 502 and the PVC printed film, which not only prevents the stable transmission effect of the PVC printed film from being affected, but also reduces the adhesion of external impurities, further improving the equipment's flattening and pressing effects on the PVC printed film.

[0026] The adjustment assembly 7 includes a rotating shaft 701, which is rotatably connected to the inner cylinder 6, and one end of the rotating shaft 701 extends to the outside of the hollow shaft 11 and is fixedly connected to a hand crank 703, the rotating shaft 701 is rotatably connected to the inside of the hollow shaft 11, a plurality of protrusions 704 are distributed in a circumferential array on the outer circumference of the rotating shaft 701, a plurality of rollers 705 are arranged between the plurality of protrusions 704, both sides of the outer sides of the rollers 705 are fixedly connected to mounting plates 706, a side of the mounting plate 706 away from the rollers 705 is fixedly connected to a connecting frame 708, the other side of the connecting frame 708 extends to the outside and is slidably sealed and connected to the outer roller body 501 and the middle roller body 502 , the connecting frame 708 is slidably connected to the inner tube 6, springs 707 are arranged on both sides of the connecting frame 708, and the two sides of the spring 707 are respectively fixedly connected to the mounting plate 706 and the inner wall of the inner tube 6, a cavity 803 is opened inside the connecting frame 708, the cavity 803 is connected to the inner tube 6, one side of the cavity 803 is connected to a fan-shaped inner cavity, the fan-shaped inner cavity is located inside the connecting tube 503, and the other side of the fan-shaped inner cavity is connected to multiple air outlets 804, a rectangular cavity is opened inside the mounting plate 706, the sliding block 904 is slidably connected inside the rectangular cavity, and the fixing plate 905 and the connecting plate 907 are both slidably connected inside the connecting frame 708.

[0027] Specific implementation method: The staff drives the connecting shaft 702 and the rotating shaft 701 to rotate through the hand crank 703, and utilizes the linkage effect between the rotating shaft 701 and multiple protrusions 704 to transmit power to the multiple protrusions 704, so that the protrusions 704 squeeze the roller 705, the mounting plate 706 and the spring 707, so that the mounting plate 706 drives the connecting frame 708, the outer roller body 501, the middle roller body 502, the connecting cylinder 503 and the connecting roller body 504 to move away from the inner cylinder 6, so as to expand the contact area between the outer roller body 501, the middle roller body 502 and the connecting roller body 504 and the PVC printing film and more uniform pressure distribution, thereby improving the flattening effect of the equipment on the PVC printing film, thereby effectively improving the processing quality of the equipment.

[0028] Working principle: When in use, first move the equipment to a suitable place, connect the external drive device to the hollow shaft 11, and then install the external pressing mechanism to a suitable position on the top of the frame 1, and then place the PVC printed film and protective film to be processed on the second unwinding assembly 3 and the first unwinding assembly 2 respectively, and place one end of each of them between the flattening roller assembly 5 and the limit rod respectively, and heat-press them through the external pressing mechanism, and finally rewind the pressed PVC printed film through the rewinding assembly 4. In this process, the hollow shaft 11, the inner cylinder 6 and the flattening roller assembly 5 are driven to rotate by the external drive device, and the flattening roller assembly 5 will generate an axial force from the connecting roller body 504 to the connecting cylinders 503 on both sides, the middle roller body 502 and the outer roller body 501 when rotating, so as to flatten the PVC printed film from the center to both sides; The hand crank 703 and the electric push rod 901 are started according to actual needs. The staff drives the connecting shaft 702 and the rotating shaft 701 to rotate through the hand crank 703, and utilizes the linkage effect between the rotating shaft 701 and the plurality of protrusions 704 to transmit power to the plurality of protrusions 704, so that the protrusions 704 squeeze the roller 705, the mounting plate 706 and the spring 707, so that the mounting plate 706 drives the connecting frame 708, the outer roller body 501, the middle roller body 502, the connecting cylinder 503 and the connecting roller body 504 to move away from the inner cylinder 6, so as to expand the contact area between the outer roller body 501, the middle roller body 502 and the connecting roller body 504 and the PVC printing film, and the mounting plate 706 will pass through the sliding block 9 during the movement. 04 moves inside the slide groove 903, and the sliding plate 902 is driven to move by the electric push rod 901, and the sliding plate 902 drives the sliding block 904 and the fixed plate 905 to move through the I-shaped slide groove 903. At this time, the fixed plate 905 drives the connecting plate 907 connected thereto to move through the cross-arranged connecting rod mechanism 906. Under the action of the connecting rod mechanism 906, the fixed plate 905 and the connecting plate 907 move equidistantly, so that the fixed plate 905 and the connecting plate 907 respectively drive the outer roller body 501 and the middle roller body 502 to move equidistantly, so as to adjust the use distance between the multiple middle roller bodies 502, and then adjust the stretching use distance between the flattening roller assemblies 5; The external hot air is introduced into the external ion device, and then the hot air gas with positive ions is transported to the inside of the inner cylinder 6 through the air inlet pipe 802 and the rotating sleeve 801. Thereafter, it is transported to between the two corresponding middle rollers 502 through the cavity 803, the fan-shaped cavity and the air outlet 804. In combination with the axial force of the outer roller 501 and the middle roller 502, the positive ions carried assist in reducing the friction static electricity between the outer roller 501 and the middle roller 502 and the PVC printed film, thereby improving the stretching and flattening effect on the PVC printed film.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A laminating device for producing PVC printed films, comprising a frame (1), characterized in that: A first unwinding assembly (2) is arranged on one side of the top of the frame (1), a second unwinding assembly (3) is arranged on one side of the bottom of the frame (1), two rectangular frames (10) are arranged on the top of the second unwinding assembly (3), two inner cylinders (6) and a flattening roller assembly (5) are arranged between the two rectangular frames (10), a static electricity removal assembly (8) is arranged on one side of the inner cylinder (6), and an adjustment assembly (7) and an auxiliary flattening assembly (9) are respectively arranged inside the inner cylinder (6); The auxiliary flattening assembly (9) comprises an electric push rod (901), the electric push rod (901) being fixedly connected to the inner wall of the inner cylinder (6) via a fixed block, one end of the output shaft of the electric push rod (901) being fixedly connected to a sliding plate (902), a sliding groove (903) being provided on one side of the interior of the sliding plate (902), a sliding block (904) being slidably connected inside the sliding groove (903), a fixed plate (905) being fixedly connected to the side of the sliding block (904) away from the sliding plate (902), a cross-connected connecting rod mechanism (906) being hingedly connected to one side of the fixing plate (905) via a pin shaft, a connecting plate (907) being rotatably connected to the intersection of the connecting rod mechanism (906) via a fixed shaft, and the connecting plate (907) being slidably connected to the top of the sliding block (904).

2. The laminating device for producing PVC printed film according to claim 1, characterized in that: The cross-sectional shape of the sliding plate (902) is set to be annular, and the sliding plate (902) is slidably connected inside the inner cylinder (6), the sliding groove (903) is set on the side away from the electric push rod (901), and the cross-sectional shape of the sliding groove (903) is set to be an I-shaped, and the sliding block (904) is slidably connected inside the sliding groove (903).

3. The laminating device for producing PVC printed film according to claim 2, characterized in that: The flattening roller assembly (5) comprises a plurality of connecting roller bodies (504) distributed in a circumferential array on the outer circumference of the inner cylinder (6); the bottom of the connecting roller body (504) is fixedly connected to the outer wall of the inner cylinder (6) via a limiting lifting sleeve; a plurality of intermediate roller bodies (502) are arranged on both sides of the connecting roller body (504); and an outer roller body (501) is arranged on the other side of the intermediate roller body (502).

4. The laminating device for producing PVC printed film according to claim 3, characterized in that: An annular groove is provided on one side of the connecting roller body (504) and the middle roller body (502), and a connecting cylinder (503) is slidably connected inside the annular groove. The cross-sectional shape of the connecting cylinder (503) is arranged to be annular, and one side of the connecting cylinder (503) is fixedly connected to the outer wall of the middle roller body (502) and the outer roller body (501). The outer roller bodies (501), the middle roller bodies (502) and the connecting cylinder (503) on both sides are arranged in opposite directions.

5. The laminating device for producing PVC printed film according to claim 4, characterized in that: One side of the bottom of the rectangular frame (10) is fixedly connected to the outer wall of the frame body (1) via a support block, and a winding assembly (4) is provided on one side of the bottom of the frame body (1), wherein the winding assembly (4) is provided on a side away from the first unwinding assembly (2).

6. The laminating device for producing PVC printed film according to claim 5, characterized in that: Both ends of the inner cylinder (6) are fixedly connected to a hollow shaft (11); the other end of the hollow shaft (11) is rotatably connected to a limit block (12) via a bearing; the limit block (12) is slidably connected to the inside of the rectangular frame (10); one side of the limit block (12) is rotatably connected to a limit rod; the limit rod is arranged inside the relative rectangular frame (10); screws are arranged on opposite sides of the two limit blocks (12); the screws are threadedly connected to the inside of the rectangular frame (10); and the other end of the screws extends to the outside of the rectangular frame (10) and is fixedly connected to a rotating handle.

7. The laminating device for producing PVC printed film according to claim 6, characterized in that: The static electricity removal component (8) comprises a rotating sleeve (801), wherein the rotating sleeve (801) is rotatably connected to the outer peripheral side of the hollow shaft (11), and one side of the rotating sleeve (801) is fixedly connected to one side of the rectangular frame (10), one side of the rotating sleeve (801) is connected to an air inlet pipe (802), and the other side of the air inlet pipe (802) is connected to an external ion supply device.

8. The laminating device for producing PVC printed film according to claim 7, characterized in that: The adjustment assembly (7) comprises a rotating shaft (701), wherein the rotating shaft (701) is rotatably connected inside the inner cylinder (6), and one end of the rotating shaft (701) extends to the outside of the hollow shaft (11) and is fixedly connected to a hand crank (703), and the rotating shaft (701) is rotatably connected inside the hollow shaft (11).

9. The laminating device for producing PVC printed film according to claim 8, characterized in that: A plurality of protrusions (704) are distributed in a circumferential array on the outer circumference of the rotating shaft (701), a plurality of rollers (705) are arranged between the plurality of protrusions (704), mounting plates (706) are fixedly connected to both sides of the outer sides of the rollers (705), a connecting frame (708) is fixedly connected to one side of the mounting plate (706) away from the rollers (705), and the other side of the connecting frame (708) extends to the outside and is slidably sealed with the outer roller body (501) and the middle roller body (502).

10. The laminating device for producing PVC printed film according to claim 9, characterized in that: The connection frame (708) is slidably connected to the interior of the inner tube (6); springs (707) are provided on both sides of the connection frame (708); the two sides of the spring (707) are respectively fixedly connected to the mounting plate (706) and the inner wall of the inner tube (6); a cavity (803) is provided inside the connection frame (708); the cavity (803) is connected to the interior of the inner tube (6); one side of the cavity (803) is connected to a fan-shaped inner cavity, which is located inside the connection tube (503); the other side of the fan-shaped inner cavity is connected to a plurality of air outlets (804); a rectangular cavity is provided inside the mounting plate (706); the sliding block (904) is slidably connected to the interior of the rectangular cavity; the fixing plate (905) and the connection plate (907) are both slidably connected to the interior of the connection frame (708).

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