A bonding machine

Abstract

The utility model relates to a laminating machine, including frame, side is equipped with bottom film unwinding shaft, winding bottom film, the upper side of frame is equipped with release paper unwinding shaft and top film unwinding shaft through support, winding release paper and top film respectively, the upper side of frame still is equipped with first compression joint mechanism, is used for the compression joint of bottom film with release paper, forms the partial pressure film, second compression joint mechanism is used for the compression joint of top film with partial pressure film and forms the compression film, film cutting mechanism is used for the compression film slitting, through first compression joint mechanism, second compression joint mechanism bottom film, release paper, top surface compression together, then through film cutting mechanism carries out die cutting, integrates in one equipment in this way in the process of production, does not need to wind the compression film, directly carries out slitting to improve production efficiency, reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of automated equipment, and in particular to a bonding machine. Background Technology

[0002] In the production process of membrane products, different films are generally bonded together using a laminating machine. However, depending on the specific needs, different laminating processes and corresponding structures need to be set up.

[0003] After lamination is completed, it needs to be slit according to different requirements. In the existing technology, the lamination and slit processes are generally produced using different equipment. After lamination, slit equipment is used for slitting. This requires the addition of corresponding slit equipment, which increases equipment costs and affects production efficiency. Utility Model Content

[0004] Therefore, it is necessary to provide a bonding machine to address the problems in the existing technology.

[0005] A laminating machine, characterized in that it includes a frame, a bottom film unwinding shaft on the side, and a bottom film wound on it.

[0006] The upper side of the frame is equipped with a release paper unwinding shaft and a top film unwinding shaft via a bracket, which respectively wind release paper and top film;

[0007] The upper side of the frame is also equipped with a first pressing mechanism, which is used to press the bottom film and the release paper together to form a pressure-separating film;

[0008] The second pressing mechanism is used to press the top film and the pressure dividing film together to form a pressed film;

[0009] A film cutting mechanism is used to cut the press-fit film.

[0010] In one embodiment, the first pressing mechanism and the second pressing mechanism are identical, including a first pressure roller and a second pressure roller arranged side by side.

[0011] A pressure roller motor is provided on the side of the first pressure roller to drive the first pressure roller to rotate;

[0012] The guide structure is located on the side of the first pressure roller and the second pressure roller, and is used to guide the release paper and top film that enter between the first pressure roller and the second pressure roller.

[0013] In one embodiment, the first pressing mechanism includes two pressing plates fixed parallel to each other on the upper side of the frame. A first pressure roller and a second pressure roller are disposed between the two pressing plates and rotatably connected to the plates. The guide structure includes a guide rod fixed between the two pressing plates. Two limiting rings are sleeved on the outer side of the guide rod. The limiting rings slide on the outer side of the guide rod. The limiting rings are provided with positioning holes and screws for fixing the limiting rings to the outer side of the guide rod.

[0014] In one embodiment, the film cutting mechanism includes a first die-cutting roller and a second die-cutting roller arranged in parallel. The upper side of the frame is provided with two die-cutting fixing plates spaced apart. The two ends of the first die-cutting roller and the second die-cutting roller are rotatably connected to the die-cutting fixing plates through bearings. A die-cutting motor for driving the rotation is provided on the side of the first die-cutting roller. The outer side of the first die-cutting roller or the second die-cutting roller is provided with a protruding die-cutting blade. The die-cutting blade is spaced apart and cuts the pressed film into sheet-like sheets and residual material strips.

[0015] In one embodiment, the first pressing mechanism, the second pressing mechanism, and the die-cutting mechanism are each provided with a pressure roller adjustment structure for adjusting the distance between the first pressure roller and the second pressure roller, and the distance between the first die-cutting roller and the second die-cutting roller.

[0016] In one embodiment, the pressure roller adjustment structure includes an adjustment groove provided on the pressing fixing plate / die-cutting fixing plate. The adjustment groove extends to the top of the pressing fixing plate / die-cutting fixing plate and communicates with the outside. An adjustment block is provided in the adjustment groove. The two ends of the second pressure roller are connected to the adjustment block through bearings. A limiting plate is fixedly provided on the upper side of the adjustment groove. A vertical adjusting rod is connected to the middle of the limiting plate. A pressure rod is provided on the lower side of the vertical adjusting rod. The outer diameter of the pressure rod is smaller than the outer diameter of the vertical adjusting rod. The adjustment block is provided with a groove corresponding to the pressure rod. The lower side of the pressure rod extends into the groove. A spring is sleeved on the outer side of the pressure rod. The two ends of the spring abut against the lower side of the vertical adjusting rod and the upper side of the adjustment block, respectively.

[0017] In one embodiment, the frame side is provided with a film inlet structure for guiding the bottom film to the first pressing mechanism. The film inlet structure includes two side supports fixed to the side of the support. Between the two side supports, there is a film inlet shaft, an adsorption plate, and a connecting shaft arranged in parallel. The adsorption plate is provided with a plurality of adsorption holes. The lower side of the adsorption plate is connected to a vacuum generator.

[0018] In one embodiment, two parallel limiting discs are provided on the outer sides of the bottom film unwinding shaft, the release paper unwinding shaft, and the top film unwinding shaft.

[0019] In one embodiment, a transmission guide structure is further provided between the first pressing mechanism and the second pressing structure. The transmission guide structure includes a transmission plate fixed on the upper side of the frame. A longitudinal groove is provided on the upper side of the transmission plate. Two guide blocks are arranged side by side in the longitudinal groove. The guide blocks are fixed in the longitudinal groove by fasteners.

[0020] The aforementioned laminating machine presses the bottom film, release paper, and top surface together through a first pressing mechanism and a second pressing mechanism, and then performs die-cutting through a film cutting mechanism. By integrating lamination and slitting into one machine, the laminating film does not need to be rolled up during the production process, and slitting can be performed directly, thereby improving production efficiency and reducing production costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the bonding machine of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of the bonding machine of this utility model;

[0023] Figure 3 for Figure 1 Enlarged view of the structure at point A in the middle;

[0024] Figure 4 for Figure 1 Enlarged view of the structure at point B;

[0025] Figure 5 for Figure 2 Enlarged structural diagram at point C;

[0026] The components include: 1. Frame; 2. Bottom film unwinding shaft; 3. Release paper unwinding shaft; 4. Top film unwinding shaft.

[0027] 5. First pressing mechanism; 51. First pressure roller; 52. Second pressure roller; 53. Pressing fixing plate;

[0028] 54. Pressure roller adjustment structure; 541. Adjustment groove; 542. Adjustment block; 543. Limiting plate; 544. Vertical adjustment rod; 545. Pressure rod; 546. Spring;

[0029] 6. Second pressing mechanism;

[0030] 7. Die-cutting mechanism; 71. First die-cutting roller; 72. Second die-cutting roller; 73. Die-cutting fixing plate; 74. Die-cutting blade; 75. Abutment part;

[0031] 8. Guide structure; 81. Guide rod; 82. Limiting ring;

[0032] 9. Membrane inlet structure; 91. Side support; 92. Membrane inlet shaft; 93. Adsorption plate; 94. Connecting shaft;

[0033] 10. Transmission guiding structure; 101. Transmission plate; 102. Longitudinal groove; 103. Guide block. Detailed Implementation

[0034] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0035] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly on" another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] like Figures 1 to 5 As shown, a laminating machine is characterized by comprising a frame 1, a bottom film unwinding shaft 2 provided on the side, and a bottom film wound on it.

[0038] On the upper side of the frame 1, a release paper unwinding shaft 3 and a top film unwinding shaft 4 are provided by a bracket, on which release paper and top film are wound respectively;

[0039] The upper side of the frame 1 is also provided with a first pressing mechanism 5, which is used to press the bottom film and the release paper together to form a pressing film;

[0040] The second pressing mechanism 6 is used to press the top film and the pressure dividing film together to form a pressed film;

[0041] The film cutting mechanism 7 is used to cut the press-fit film.

[0042] The bottom film, release paper, and top surface are pressed together by the first pressing mechanism 5 and the second pressing mechanism 6, and then die-cut by the film cutting mechanism 7. The bonding and slitting are integrated into one machine. In this way, the pressed film does not need to be rolled up during the production process, and it can be directly slitted, thereby improving production efficiency and reducing production costs.

[0043] The first pressing mechanism 5 is used to press the bottom film and the release paper together, and the second pressing mechanism 6 is used to press the dividing film and the top film together. In this embodiment, the first pressing mechanism 5 and the second pressing mechanism 6 are the same, including a first pressure roller 51 and a second pressure roller 52 arranged side by side.

[0044] The first pressure roller 51 is provided with a pressure roller motor on its side for driving the first pressure roller 51 to rotate;

[0045] The guide structure 8 is located on the side of the first pressure roller 51 and the second pressure roller 52, and is used to guide the release paper and top film that enter between the first pressure roller 51 and the second pressure roller 52.

[0046] Under the action of the pressure roller motor, the first pressure roller 51 of the first pressing mechanism 5 rotates, and the bottom film / partition film passes between the first pressure roller 51 and the second pressure roller 52. In this way, when the first pressure roller 51 rotates, the bottom film and the release paper can be pressed together to form a partition film. The partition film is controlled to move forward. The partition film and the top film are pressed together at the position of the second pressing mechanism 6 to form a pressed film, and the pressed film is controlled to move forward. After pressing, the pressed film is die-cut by the die-cutting mechanism to form a sheet.

[0047] At this time, both the first pressing mechanism 5 and the second pressing mechanism 6 need to achieve pressing and control of the pressed film. The rotation of the first pressing roller 51 is controlled by the pressing roller motor, which can press the film between the first pressing roller 51 and the second pressing roller, and control the movement of the pressed film. At this time, the bottom film, top film, or release paper can be provided with corresponding adhesive layers, or none can be provided. The bottom film and top film are adsorbed and fixed together by electrostatic adsorption. In this embodiment, an adhesive layer is provided on one side of the release paper, at the position of the first pressing mechanism 5. The release paper is attached to the upper side of the bottom film via an adhesive layer, and an adhesive layer is provided on the lower side of the top film. When it is bonded to the upper side of the bottom film / release paper, a press film is formed. The film cutting mechanism 7 performs the film cutting, which cuts out rectangular sheet-shaped stickers from the press film. At this time, one side of the sheet-shaped sticker is located at the release paper position, and the release paper is cut from the middle position. In this way, part of the release paper is located at the edge of the sheet-shaped sticker. The sheet-shaped sticker obtained in this way is convenient to tear and separate the bottom film and the top surface through the release paper position during use.

[0048] During the pressing of the first pressing mechanism 5 and the second pressing mechanism 6, it is necessary to ensure that the bottom film and release paper, the pressing film and the top film are aligned when entering the pressing position. Therefore, in this embodiment, the first pressing mechanism 5 includes two pressing fixing plates 53 that are fixed in parallel on the upper side of the frame 1. The first pressure roller 51 and the second pressure roller 52 are arranged between the two pressing fixing plates 53 and are rotatably connected to the fixing plates. The guide structure 8 includes a guide rod 81 fixed between the two pressing fixing plates 53. Two limiting rings 82 are sleeved on the outside of the guide rod 81. The limiting rings 82 slide on the outside of the guide rod 81. The limiting rings 82 are provided with positioning holes and screws for fixing the limiting rings 82 on the outside of the guide rod 81. Since the limiting ring 82 is sleeved on the outside of the guide rod 81, the limiting ring 82 can slide on the outside of the guide rod 81, thereby adjusting the position of the limiting ring 82 on the outside of the guide rod 81 to adapt to different production width requirements. At this time, by setting screws at the positioning hole position, the limiting ring 82 can be fixed in the outer position of the limiting ring 82, thereby preventing the limiting ring 82 from moving during use.

[0049] Since both the first pressing mechanism 5 and the second pressing mechanism 6 involve two types of films (or film and release paper) entering the pressing position, the guide structure 8 is provided in two sets, located on the upper and lower sides of the middle position between the first pressure roller 51 and the second pressure roller 52, respectively. This allows two different films (film and release paper) to be introduced into the pressing position for pressing, thereby ensuring the accuracy of the position between the films (film and release paper) during pressing.

[0050] At this time, the film cutting mechanism 7 mainly functions to cut the pressed film after pressing. In this embodiment, the film cutting mechanism 7 includes a first die-cutting roller 71 and a second die-cutting roller 72 arranged in parallel. The upper side of the frame 1 is provided with two die-cutting fixing plates 73 arranged at intervals. The two ends of the first die-cutting roller 71 and the second die-cutting roller 72 are rotatably connected to the die-cutting fixing plates 73 through bearings. The side of the first die-cutting roller 71 is provided with a die-cutting motor for driving rotation. The outer side of the first die-cutting roller 71 or the second die-cutting roller 72 is provided with a protruding die-cutting blade 74. The die-cutting blades 74 are arranged at intervals. The die-cutting blades 74 cut the pressed film into sheet-like sheets and residual material strips. At this time, the die-cutting mechanism includes a first die-cutting roller 71 and a second die-cutting roller 72. In this embodiment, the surface of the first die-cutting roller 71 is provided with a die-cutting blade 74. At this time, the die-cutting blade 74 protrudes from the surface of the second die-cutting roller 72. The shape of the die-cutting blade 74 is the same as the shape of the sheet-like adhesive projection onto the surface of the second die-cutting roller 72, and it is distributed in a ring on the outside of the second die-cutting roller 72. In this way, during the rotation of the second die-cutting roller 72, the pressing film can move forward and the pressing film can be cut. At this time, in order to improve production efficiency, the release paper is strip-shaped and has two strips. The ring-distributed die-cutting blades 74 are provided in two sets, which can improve the die-cutting efficiency during film cutting.

[0051] At this time, in order to smoothly transfer the slit residual material strip from the first die-cutting roller 71 and the second die-cutting roller 72, a protruding abutment portion 75 is provided on the outside of the die-cutting blade 74. The abutment portion 75 is annular and there are two of them, located on the two outer sides of the die-cutting blade 74 respectively, and there is a certain distance between them and the die-cutting blade 74. The height is slightly less than the height of the die-cutting blade 74. In this way, when the pressed film moves between the first die-cutting roller 71 and the second die-cutting roller 72, the die-cutting action of the die-cutting blade 74 on the pressed film can be completed. At the same time, the edge position of the pressed film (residual material strip) can also be clamped by the abutment portion 75 to ensure that the edge position of the pressed film (residual material strip) moves forward under the action of the abutment portion 75 and the second die-cutting roller 72, thereby stably transferring it out between the first die-cutting roller 71 and the second die-cutting roller 72.

[0052] When producing different types of products or when initially passing the film through the first pressing mechanism 5, the second pressing mechanism 6, and the die-cutting mechanism, it is necessary to adjust the distance between the first pressing roller and the second pressing roller, as well as the distance between the first die-cutting roller 71 and the second die-cutting roller 72. Therefore, in this embodiment, the first pressing mechanism 5, the second pressing mechanism 6, and the die-cutting mechanism are each provided with a pressure roller adjustment structure 54, which is used to adjust the distance between the first pressure roller 51 and the second pressure roller 52, as well as the distance between the first die-cutting roller 71 and the second die-cutting roller 72.

[0053] Specifically, the pressure roller adjustment structure 54 includes an adjustment groove 541 provided on the pressing and fixing plate 53 / die-cutting fixing plate 73. The adjustment groove 541 extends to the top of the pressing and fixing plate 53 / die-cutting fixing plate 73 and communicates with the outside. An adjustment block 542 is provided in the adjustment groove 541. The two ends of the second pressure roller 52 are connected to the adjustment block 542 through bearings. A limiting plate 543 is fixedly provided on the upper side of the adjustment groove 541. A vertical adjusting rod 544 is connected to the middle of the limiting plate 543. A pressure rod 545 is provided on the lower side of the vertical adjusting rod 544. The outer diameter of the pressure rod 545 is smaller than that of the vertical adjusting rod 544. The adjustment block 542 is provided with a groove corresponding to the pressure rod 545. The lower side of the pressure rod 545 extends into the groove. A spring 546 is sleeved on the outer side of the pressure rod 545. The two ends of the spring 546 abut against the lower side of the vertical adjusting rod 544 and the upper side of the adjustment block 542, respectively.

[0054] At this point, taking the pressure roller adjustment structure 54 at position 5 of the first pressing mechanism as an example, the adjusting block 542 can move up and down within the adjusting groove 541. To ensure the adjusting block 542 remains straight during movement, guide portions protruding to the outside of the pressing fixing plate 53 are provided on both sides of the adjusting block 542. Thus, the overall cross-section of the adjusting block 542 is H-shaped, ensuring that the adjusting block 542 always moves up and down within the adjusting groove 541, thereby guaranteeing that the second pressure roller 52 can move up and down linearly within the adjusting groove 541. Meanwhile, the vertical adjusting rod 544 passes through the limiting plate 543 via a threaded connection, and the limiting plate 543 is fixed to the upper side of the fixing groove. The lower side of the vertical adjusting rod 544 abuts against the upper side of the adjusting groove 541. A step is provided on the lower side of the vertical adjusting rod 544, thus forming a pressure rod 545 on the lower side of the vertical adjusting rod 544. A spring 546 is sleeved on the outside of the pressure rod 545. In this way, when adjusting the vertical adjusting rod 544 to move up and down, the distance between the step and the upper side of the adjusting block 542 can be adjusted, that is, the compression state of the spring 546 can be adjusted. When it is necessary to thread the film, the vertical adjusting rod 544 is rotated outward, which reduces the pressure of the spring 546 on the adjusting block 542, so that the adjusting block 542 can slide upward easily, that is, the second pressure roller 52 can move upward easily, thus facilitating the threading of the film. During the film pressing process, the vertical adjusting rod 544 is controlled to move downward, causing the stepped part of the vertical adjusting rod 544 to move downward. This allows the stepped part to press the spring 546, thereby causing the adjusting block 542 to move downward. Of course, when the adjusting block 542 is at the bottom position of the adjusting groove 541, the surfaces of the first pressure roller 51 and the second pressure roller 52 are in contact. By adjusting the compression state of the spring 546, the pressure of the spring 546 acting on the adjusting block 542 can be adjusted, thereby adjusting the pressure when the film passes through the first pressure roller 51 and the second pressure roller 52.

[0055] Of course, in order to ensure that the vertical adjusting rod 544 remains vertical during the movement, the lower side of the adjusting block 542 is provided with a recessed groove, and the lower side of the vertical adjusting rod 544 (pressure rod 545) is located in the groove. In this way, when the vertical adjusting rod 544 moves up and down, it can be used to accommodate the lower part of the vertical adjusting rod 544 (pressure rod 545) and limit the movement direction of the lower side of the vertical adjusting rod 544 (pressure rod 545), thereby ensuring that the vertical adjusting rod 544 as a whole remains vertical during the movement.

[0056] To ensure the stability of the bottom film during the feeding process, in this embodiment, the frame 1 is provided with a film feeding structure 9 on its side to guide the bottom film to the first pressing mechanism 5. The film feeding structure 9 includes two side supports 91 fixed to the side of the support. Between the two side supports 91, a film feeding shaft 92, an adsorption plate 93, and a connecting shaft 94 arranged in parallel are provided in sequence. The adsorption plate 93 is provided with a plurality of adsorption holes, and a vacuum generator is connected to the lower side of the adsorption plate 93. After the adsorption plate 93 is set, the bottom film passing through this position is adsorbed onto the upper side of the adsorption plate 93. Then, guided by the side support 91, the bottom film can smoothly enter the first pressing mechanism 5. At this time, since the upper side of the adsorption plate 93 has a large number of adsorption holes, and the width of the bottom film is generally smaller than the length of the adsorption plate 93, the bottom film can only partially cover the adsorption plate 93. Thus, during the production process, paper or other film structures can be covered on the outer side of the bottom film at the adsorption plate 93 position to cover and conceal the adsorption holes. This can prevent the adsorption holes from being exposed and prevent other items from the external environment from being adsorbed onto the surface of the adsorption plate 93. At this time, a connecting plate can be set on the lower side of the adsorption plate 93. The connecting plate has longitudinal holes corresponding to the adsorption holes. The upper side of the longitudinal holes has connecting holes corresponding to the adsorption holes. The side of the longitudinal holes is connected to the vacuum generator through a pipe, thereby forming a vacuum adsorption effect at the adsorption hole position.

[0057] In one embodiment, two parallel limiting discs are provided on the outer sides of the bottom film unwinding shaft 2, the release paper unwinding shaft 3, and the top film unwinding shaft 4. At the same time, the bottom film unwinding shaft 2 and the top film unwinding shaft 4 are provided with motors for driving, thereby realizing the feeding of the bottom film and the top film. Since the release paper has a small width and a small overall weight, it does not need to be driven by a motor. The rolled release paper can be directly sleeved on the outer side of the release paper unwinding shaft 3 during the production process.

[0058] During the process of transferring the pressure-distributing membrane to the second pressing mechanism 6 after pressing, in order to ensure that the pressure-distributing membrane does not shift when entering the second pressing mechanism 6, in this embodiment, a transmission guide structure 810 is also provided between the first pressing mechanism 5 and the second pressing mechanism. The transmission guide structure 810 includes a transmission plate 101 fixed to the upper side of the frame 1. The upper side of the transmission plate 101 is provided with a longitudinal groove 102. Two guide blocks 103 are arranged side by side in the longitudinal groove 102. The guide blocks 103 are fixed in the longitudinal groove 102 by fasteners. The longitudinal groove 102 is longitudinally arranged between the first pressing mechanism 5 and the second pressing mechanism 6. The pressure-distributing membrane is located between the two guide blocks 103, thereby ensuring that the position of the pressure-distributing membrane between the first pressing mechanism 5 and the second pressing mechanism 6 will not shift when entering the second pressing mechanism 6.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An applicator characterized by, Includes a frame, with a bottom film unwinding shaft on the side for winding the bottom film. The upper side of the frame is equipped with a release paper unwinding shaft and a top film unwinding shaft via a bracket, which respectively wind release paper and top film; The upper side of the frame is also equipped with a first pressing mechanism, which is used to press the bottom film and the release paper together to form a pressure-separating film; The second pressing mechanism is used to press the top film and the pressure dividing film together to form a pressed film; A film cutting mechanism is used to cut the press-fit film.

2. The splicing machine according to claim 1, characterized in that, The first pressing mechanism and the second pressing mechanism are the same, including a first pressure roller and a second pressure roller arranged side by side. A pressure roller motor is provided on the side of the first pressure roller to drive the first pressure roller to rotate; The guide structure is located on the side of the first pressure roller and the second pressure roller, and is used to guide the release paper and top film that enter between the first pressure roller and the second pressure roller.

3. The splicing machine according to claim 2, characterized in that, The first pressing mechanism includes two pressing plates fixed in parallel on the upper side of the frame. A first pressure roller and a second pressure roller are disposed between the two pressing plates and are rotatably connected to the plates. The guide structure includes a guide rod fixed between the two pressing plates. Two limiting rings are sleeved on the outside of the guide rod. The limiting rings slide on the outside of the guide rod. The limiting rings are provided with positioning holes and screws for fixing the limiting rings to the outside of the guide rod.

4. The splicing machine according to claim 3, characterized in that, The film cutting mechanism includes a first die-cutting roller and a second die-cutting roller arranged in parallel. Two die-cutting fixing plates are provided on the upper side of the frame. The first and second die-cutting rollers are rotatably connected to the die-cutting fixing plates at both ends through bearings. A die-cutting motor for driving the rotation is provided on the side of the first die-cutting roller. A protruding die-cutting blade is provided on the outer side of the first or second die-cutting roller. The die-cutting blades are arranged at intervals. The die-cutting blades cut the pressed film into sheet-like sheets and residual material strips.

5. The splicing machine according to claim 4, wherein The first pressing mechanism, the second pressing mechanism, and the die-cutting mechanism are each equipped with a pressure roller adjustment structure for adjusting the distance between the first pressure roller and the second pressure roller, and the distance between the first die-cutting roller and the second die-cutting roller.

6. The splicing machine according to claim 5, wherein The pressure roller adjustment structure includes an adjustment groove provided on the pressing fixing plate / die-cutting fixing plate. The adjustment groove extends to the top of the pressing fixing plate / die-cutting fixing plate and communicates with the outside. An adjustment block is provided in the adjustment groove. The two ends of the second pressure roller are connected to the adjustment block through bearings. A limiting plate is fixedly provided on the upper side of the adjustment groove. A vertical adjusting rod is connected to the middle of the limiting plate. A pressure rod is provided on the lower side of the vertical adjusting rod. The outer diameter of the pressure rod is smaller than the outer diameter of the vertical adjusting rod. The adjustment block is provided with a groove corresponding to the pressure rod. The lower side of the pressure rod extends into the groove. A spring is sleeved on the outer side of the pressure rod. The two ends of the spring abut against the lower side of the vertical adjusting rod and the upper side of the adjustment block, respectively.

7. The splicing machine according to any one of claims 1 to 6, characterized in that, The frame has a film feeding structure on its side for guiding the bottom film to the first pressing mechanism. The film feeding structure includes two side supports fixed to the side of the support. Between the two side supports, there is a film feeding shaft, an adsorption plate, and a connecting shaft arranged in parallel. The adsorption plate has several adsorption holes, and a vacuum generator is connected to the lower side of the adsorption plate.

8. The splicing machine according to any one of claims 1 to 6, characterized in that, The bottom film unwinding shaft, release paper unwinding shaft, and top film unwinding shaft are provided with two parallel limiting discs on their outer sides, and the bottom film unwinding shaft and top film unwinding shaft are respectively provided with motors for driving.

9. The splicing machine according to claim 8, wherein A transmission guide structure is also provided between the first pressing mechanism and the second pressing structure. The transmission guide structure includes a transmission plate fixed on the upper side of the frame. A longitudinal groove is provided on the upper side of the transmission plate. Two guide blocks are arranged side by side in the longitudinal groove. The guide blocks are fixed in the longitudinal groove by fasteners.

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