Splicing device for PET sheet production

Abstract

The utility model relates to the field of film splicing devices, and discloses a splicing device for PET (polyethylene terephthalate) sheet production, which comprises a working box, an operating platform is arranged on the inner side of the working box, support frames are fixedly connected to two sides of the bottom of the operating platform, an electric push rod is fixedly connected to the inside of the working box, and the electric push rod is fixedly connected to the inside of the working box. The output end of the electric push rod is fixedly connected with a fixed block, the two sides of the fixed block are fixedly connected with vertical blocks, the two sides of each vertical block are rotationally connected with rotating rods, a bending spring is installed between the two rotating rods, the bottom of each rotating rod is fixedly connected with a connecting rod, and the outer side of each connecting rod is fixedly connected with a shifting piece. According to the PET film heat sealing device, wrinkles on PET films are smoothed through the shifting pieces, then the connecting position of the two PET films is fixed through the transverse plate, the phenomenon that the edges of the PET films are warped in the heat sealing reaction, and the product quality is affected is avoided, and in order to better convey the two PET films to one position, the clamping pieces are adopted for fixing, and the two-way threaded rod conveying mode is adopted.

Description

Technical Field

[0001] This utility model relates to the field of film splicing devices, and in particular to a splicing device for PET sheet production. Background Technology

[0002] A film splicing device is a specialized piece of equipment used to join thin film materials (such as PET film) together, and it is widely used in industries such as electronics, packaging, and photovoltaics. This device typically employs technologies such as hot pressing, ultrasonic bonding, or adhesive splicing to achieve efficient and precise splicing operations. Its core components include a heating plate, a pressing device, and a control system, which can adjust splicing parameters according to the characteristics and requirements of different films.

[0003] However, when splicing PET sheets with existing equipment, the sheets may wrinkle due to external forces during movement, which affects the splicing effect. Furthermore, the lack of fixation at the joint between two PET sheets often causes the PET to curl up after heating, affecting the quality of the processed PET sheets and thus impacting product sales.

[0004] To address the above problems, a splicing device for PET sheet production is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a splicing device for PET sheet production, which aims to solve the problem that when splicing PET sheets, wrinkles will occur due to external forces during the movement of the sheets, thus affecting the splicing effect. In addition, the lack of fixation at the joint of two PET sheets often leads to the PET curling up after the heating equipment is applied, affecting the quality of the PET sheets after processing, and thus affecting the sales of the products.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a splicing device for PET sheet production, comprising:

[0007] The work box has an operating platform inside. Support frames are fixedly connected to both sides of the bottom of the operating platform. Bi-directional threaded rods are installed on both the front and rear sides of the top of the operating platform. Fixers are threaded to the outer sides of the bi-directional threaded rods. Rollers are installed on both sides of the top of the operating platform. PET film is installed on the outer side of the rollers. Fixing components for clamping and fixing the PET film are provided inside the fixers.

[0008] A heat-sealing assembly for heating and fixing two PET films together is installed inside a work chamber. The heat-sealing assembly includes a heater. An electric push rod is fixedly connected inside the work chamber. A fixing block is fixedly connected to the output end of the electric push rod. Vertical blocks are fixedly connected to both sides of the fixing block. Rotating rods are rotatably connected to both sides of the vertical blocks. A bending spring is installed between the two rotating rods. A connecting rod is fixedly connected to the bottom of the rotating rod. A lever is fixedly connected to the outer side of the connecting rod.

[0009] As a further description of the above technical solution:

[0010] The fixing component includes a pull rod that is slidably connected to the side wall of the fixing device. A telescopic rod is rotatably connected inside the pull rod, and a clamp is rotatably connected to the end of the telescopic rod away from the pull rod. Multiple springs are installed inside the fixing device.

[0011] As a further description of the above technical solution:

[0012] Two springs are installed on both sides of the bottom of the heater. A horizontal plate is fixedly connected to the bottom of the two springs, and a fixing block is fixedly connected to the top of the heater.

[0013] As a further description of the above technical solution:

[0014] Limiting blocks are fixedly connected to both sides of the working box. A sliding groove is provided inside the limiting block, and a connecting rod is slidably connected inside the sliding groove. The outer side of the connecting rod is fixedly connected to the inside of the lever.

[0015] As a further description of the above technical solution:

[0016] The bottom of the paddle is slidably connected to the top of the PET film.

[0017] As a further description of the above technical solution:

[0018] A motor is fixedly connected to the end of the bidirectional threaded rod, and the bottom of the horizontal plate abuts against the top of the PET film.

[0019] As a further description of the above technical solution:

[0020] The top of the second spring is fixedly connected to the bottom of the clamp, and the bottom of the second spring is fixedly connected to the inner bottom wall of the fixture.

[0021] As a further description of the above technical solution:

[0022] The telescopic rod is internally connected to a rotating shaft, and the two ends of the rotating shaft are fixedly connected to the side wall of the fixture, allowing the telescopic rod to extend and retract.

[0023] As a further description of the above technical solution:

[0024] The side wall of the fixator has a passage opening, and the outer side of the clip is slidably connected to the inside of the fixator.

[0025] This utility model has the following beneficial effects:

[0026] 1. In this utility model, the electric push rod acts downward on the heater. Before the heater performs the heat sealing operation, the paddle moves in opposite directions under the action of the bending spring and the rotating rod to remove the wrinkles on the PET film. Then the horizontal plate fixes the joint of the two PET films to prevent uneven splicing. After that, the heater covers the two PET films and heat seals the two PET films into one piece.

[0027] 2. In this utility model, in order to align two PET films together, the PET films on both sides are pulled out and placed in the passages on the two fixtures on both sides of the platform. Before this, the pull rod is pushed inward, and the telescopic rod acts on the clamping piece. The clamping piece slides down and compresses the second spring. After the PET film is placed, the pull rod is released. Under the action of the second spring, the clamping piece clamps the PET film upward. Then, under the action of the motor, the threaded rod is driven to transport the two PET films to one place, which facilitates subsequent splicing. Attached Figure Description

[0028] Figure 1 This is a three-dimensional schematic diagram of a splicing device for PET sheet production proposed in this utility model;

[0029] Figure 2 This is a schematic diagram of the vertical block of a splicing device for PET sheet production proposed in this utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the fastener of the splicing device for PET sheet production proposed in this utility model;

[0031] Figure 4 This is a schematic diagram of the clamping plate structure of a splicing device for PET sheet production proposed in this utility model.

[0032] Legend:

[0033] 1. Working box; 2. Support frame; 3. Limiting block; 4. Motor; 5. Roller; 6. Heater; 7. Electric push rod; 8. Fixing block; 9. Vertical block; 10. Rotating rod; 11. Paddle; 12. Horizontal plate; 13. Spring 1; 14. Double-sided threaded rod; 15. Fixing device; 16. PET film; 17. Pull rod; 18. Telescopic rod; 19. Rotating shaft; 20. Spring 2; 21. Clamping plate; 22. Through port; 23. Connecting rod; 24. Bending spring. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figure 1 - Figure 2 One embodiment of this utility model provides: a splicing device for PET sheet production, comprising:

[0036] The work box 1 has an operating platform inside. Support frames 2 are fixedly connected to both sides of the bottom of the operating platform. Two-way threaded rods 14 are installed on the front and rear sides of the top of the operating platform. Fixers 15 are threaded to the outer side of the two-way threaded rods 14. Rollers 5 are installed on both sides of the top of the operating platform. PET film 16 is installed on the outer side of the rollers 5. Fixers 15 have fixing components inside for clamping and fixing PET film 16.

[0037] A heat-sealing assembly, used to heat and fix the joint of two PET films 16 together, is installed inside the working box 1. The heat-sealing assembly includes a heater 6. An electric push rod 7 is fixedly connected inside the working box 1. A fixing block 8 is fixedly connected to the output end of the electric push rod 7. Vertical blocks 9 are fixedly connected to both sides of the fixing block 8. Rotating rods 10 are rotatably connected to both sides of the vertical blocks 9. A bending spring 24 is installed between the two rotating rods 10. A connecting rod 23 is fixedly connected to the bottom of the rotating rod 10. A lever 11 is fixedly connected to the outer side of the connecting rod 23. The bottom of the heater 6... Two springs 13 are installed on both sides of the end, and a horizontal plate 12 is fixedly connected to the bottom of the two springs 13. A fixing block 8 is fixedly connected to the top of the heater 6. Limiting blocks 3 are fixedly connected to both sides of the working box 1. A sliding groove is opened inside the limiting block 3. A connecting rod 23 is slidably connected inside the sliding groove. The outer side of the connecting rod 23 is fixedly connected to the inside of the paddle 11. The bottom of the paddle 11 is slidably connected to the top of the PET film 16. A motor 4 is fixedly connected to the end of the bidirectional threaded rod 14. The bottom of the horizontal plate 12 abuts against the top of the PET film 16.

[0038] Specifically, in this embodiment, the main body of the equipment includes a work box 1, a support frame 2, and an operating platform. Two rollers 5 are installed on the top two sides of the operating platform. PET films 16 are installed on the outer side of the rollers 5. When the ends of the two PET films 16 are pulled together by the fixing component and the bidirectional threaded rod 14, the electric push rod 7 located at the top of the work box 1 is activated. The output end of the electric push rod 7 presses down on the fixing block 8. The vertical block 9 is located above the connection between the two PET films 16. Since the two paddles 11 are first subjected to force and slide in opposite directions, the wrinkles on the PET films 16 are smoothed out. At this time, the two rotating rods 10 also rotate in opposite directions and stretch the bending spring 24. The two horizontal plates 12 located at the bottom of the vertical block 9 fix the area near the connection between the two PET films 16, and the spring 13 plays a buffering role. At this time, the vertical block 9 moves down and fits tightly against the connection between the two PET films 16, connecting the two together through heat sealing technology, thus completing the splicing of the PET films 16.

[0039] Reference Figure 3 - Figure 4 The fixing assembly includes a pull rod 17, which is slidably connected to the side wall of the fixing device 15. A telescopic rod 18 is rotatably connected inside the pull rod 17. A clamp 21 is rotatably connected to the end of the telescopic rod 18 away from the pull rod 17. Multiple springs 20 are installed inside the fixing device 15. The top of the springs 20 is fixedly connected to the bottom of the clamp 21, and the bottom of the springs 20 is fixedly connected to the inner bottom wall of the fixing device 15. A rotating shaft 19 is rotatably connected inside the telescopic rod 18. Both ends of the rotating shaft 19 are fixedly connected to the side wall of the fixing device 15. The telescopic rod 18 can extend and retract. A passage 22 is opened on the side wall of the fixing device 15. The outer side of the clamp 21 is slidably connected to the inside of the fixing device 15.

[0040] Specifically, in order to splice two PET films 16, the two PET films 16 that are far apart need to be moved together. Before that, they need to be clamped together by a fixing component. First, the PET film 16 is pulled out from the roller 5, and at the same time, the pull rod 17 is pushed inward. The pull rod 17 acts on the clamping piece 21 through the telescopic rod 18, so that the clamping piece 21 slides down inside the fixing device 15 and compresses the second spring 20. At this time, the PET film 16 is slid into the through hole 22 on the fixing device 15. After the pull rod 17 is released, the PET film 16 is clamped in the fixing device 15 under the action of the second spring 20. The PET film 16 is clamped by one fixing device 15 on each side. At this time, the motor 4 can be started, and the bidirectional threaded rod 14 is driven to start rotating. Since the outer side of the bidirectional threaded rod 14 is bidirectional threaded, the two fixing devices 15 on the outer side of the bidirectional threaded rod 14 slide in opposite directions and move the two clamped PET films 16 together to facilitate the next step of heat sealing splicing.

[0041] Working principle: Before splicing the PET film 16, the ends of the two PET films 16 need to be placed together at both ends of the platform. The ends of the PET films 16 are placed in the passages 22 on the fixing devices 15 on both sides. Before this, the push rod 17 is moved. Under the action of the telescopic rod 18, the clamping piece 21 moves down and compresses the second spring 20. After the pull rod 17 is released, the clamping piece 21 clamps the PET film 16 upward under the action of the second spring 20. At this time, the motor 4 is started, which drives the bidirectional threaded rod 14 to rotate. The two fixing devices 15 on the outside of the bidirectional threaded rod 14 respectively carry their respective PET films. The film 16 moves in opposite directions, eventually bringing the two PET films 16 together. At this point, the electric push rod 7 can be activated. The electric push rod 7 acts downward on the fixing block 8. First, the two paddles 11 on both sides will contact the PET film 16. Under the action of the bending spring 24 and the electric push rod 7, they will slide in opposite directions to smooth out the wrinkles on the PET film 16 and ensure that the PET film 16 is flat. Then, the horizontal plate 12 will press down near the joint of the two PET films 16. After that, the heater 6 will cover the top of the PET film 16 and use heat sealing technology to join the two into one.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A splicing device for PET sheet production, characterized in that, include: The work box (1) has an operating platform on its inner side. Support frames (2) are fixedly connected to both sides of the bottom of the operating platform. Two-way threaded rods (14) are installed on both the front and rear sides of the top of the operating platform. Fixers (15) are threaded to the outer side of the two-way threaded rods (14). Rollers (5) are installed on both sides of the top of the operating platform. PET film (16) is installed on the outer side of the rollers (5). Fixers (15) have a fixing component for clamping and fixing the PET film (16) inside. A heat-sealing assembly for heating and fixing two PET films (16) together is installed inside a work box (1). The heat-sealing assembly includes a heater (6). An electric push rod (7) is fixedly connected inside the work box (1). A fixing block (8) is fixedly connected to the output end of the electric push rod (7). Vertical blocks (9) are fixedly connected to both sides of the fixing block (8). Rotating rods (10) are rotatably connected to both sides of the vertical blocks (9). A bending spring (24) is installed between the two rotating rods (10). A connecting rod (23) is fixedly connected to the bottom of the rotating rod (10). A paddle (11) is fixedly connected to the outside of the connecting rod (23).

2. The splicing device for PET sheet production according to claim 1, characterized in that: The fixing assembly includes a pull rod (17) which is slidably connected to the side wall of the fixing device (15). A telescopic rod (18) is rotatably connected inside the pull rod (17). A clip (21) is rotatably connected to one end of the telescopic rod (18) away from the pull rod (17). A plurality of springs (20) are installed inside the fixing device (15).

3. The splicing device for PET sheet production according to claim 1, characterized in that: Two springs (13) are installed on both sides of the bottom end of the heater (6). A horizontal plate (12) is fixedly connected to the bottom of the two springs (13), and a fixing block (8) is fixedly connected to the top of the heater (6).

4. The splicing device for PET sheet production according to claim 1, characterized in that: Both sides of the work box (1) are fixedly connected to limit blocks (3). The limit blocks (3) have a sliding groove inside. A connecting rod (23) is slidably connected inside the sliding groove. The outside of the connecting rod (23) is fixedly connected to the inside of the paddle (11).

5. The splicing device for PET sheet production according to claim 1, characterized in that: The bottom of the paddle (11) is slidably connected to the top of the PET film (16).

6. The splicing device for PET sheet production according to claim 3, characterized in that: The end of the bidirectional threaded rod (14) is fixedly connected to a motor (4), and the bottom of the horizontal plate (12) abuts against the top of the PET film (16).

7. The splicing device for PET sheet production according to claim 2, characterized in that: The top of the second spring (20) is fixedly connected to the bottom of the clip (21), and the bottom of the second spring (20) is fixedly connected to the inner bottom wall of the fixture (15).

8. The splicing device for PET sheet production according to claim 2, characterized in that: The telescopic rod (18) is rotatably connected to a pivot (19), and the two ends of the pivot (19) are fixedly connected to the side wall of the fixture (15). The telescopic rod (18) can extend and retract.

9. A splicing device for PET sheet production according to claim 2, characterized in that: The side wall of the fixture (15) has a passage (22), and the outer side of the clip (21) is slidably connected to the inside of the fixture (15).

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