Device for opening locking and edge sealing of multiple layers of films

Abstract

The utility model discloses an edge sealing device for a multilayer film lock mouth, which comprises a rack, an arc-shaped groove is arranged in the rack, a driven roller is rotatably connected in the arc-shaped groove, the top surface of the driven roller is abutted against two edge sealing rollers which are axially symmetrical, the two edge sealing rollers are jointly and movably connected with a support plate, and the support plate is movably connected with the driven roller. The supporting plate is located at the upper ends of the two edge sealing rollers and movably connected to the top face of the rack. The supporting plate is movably connected to the top face of the machine frame, the two edge sealing rollers in mirror symmetry are transversely and movably connected to the bottom face of the supporting plate through the driving piece, and therefore the distance between the two edge sealing rollers can be adjusted according to the width of the film edge sealing. And therefore, the equipment can be used for sealing the edges of the films with different widths.

Description

Technical Field

[0001] The utility model relates to the technical field of edge sealing devices, in particular to a multi-layer film locking edge sealing device. Background Art

[0002] During the processing of packaging bags, in order to improve processing efficiency, it is often necessary to unwind two plastic film coils, stack them together and convey them forward, and then through a sealing machine, heat-melt the two sides of the plastic film together (i.e., heat-melt seal the two sides of the packaging bag), then perform heat melting on the bottom of the packaging bag, and finally perform cutting to form independent packaging bags. The existing sealing machines are not convenient for adjusting the sealing width and meeting the sealing requirements of packaging bags with different widths. Content of the Utility Model

[0003] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a multi-layer film locking edge sealing device is proposed.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: a multi-layer film locking edge sealing device, including a frame, an arc-shaped groove is opened inside the frame, a driven roller is rotatably connected inside the arc-shaped groove, the top surface of the driven roller abuts against two axially symmetric sealing rollers, the two sealing rollers are jointly movably connected to a support plate, the support plate is located above the two sealing rollers and is movably connected to the top surface of the frame.

[0005] As a further description of the above technical scheme: two mirror-symmetric support blocks are fixedly connected to each end of the support plate, through holes are vertically penetrated through the top surfaces of the support blocks, a second guide rod is axially slidably penetrated inside the through holes, the second guide rod is vertically fixed to the top surface of the frame, a limiting block is fixedly connected to the top surface of the second guide rod, and a spring is sleeved on the outer edge of the second guide rod, and the spring is located between the support plate and the limiting block.

[0006] As a further description of the above technical scheme: a groove is opened on each of the two inner walls of the frame, a downward U-shaped plate is movably connected inside each groove, the sealing roller is rotatably connected inside the U-shaped plate, a second driving motor is horizontally fixed to the side surface of the U-shaped plate, the output end of the second driving motor is in transmission connection with the end of the sealing roller, a guiding groove is horizontally penetrated through the top surface of the support plate, two mirror-symmetric guiding blocks are slidably penetrated inside the guiding groove, each U-shaped plate is fixedly connected to the bottom surface of each guiding block, and a driving part for driving the guiding block is arranged on the top surface of the support plate.

[0007] As a further description of the above technical solution: The driving member includes a first driving motor horizontally fixed on one side of the top surface of the support plate. The output end of the first driving motor is drivingly connected to a screw rod. The end of the screw rod is rotatably connected to a support seat. The support seat is fixed on the top surface of the other side of the support plate. Thread holes are horizontally penetrated through the side surfaces of the two guide blocks, and the thread directions of the two thread holes are opposite. Guide holes are horizontally penetrated through the side surfaces of the two guide blocks. The two guide blocks are axially slidably penetrated through a first guide rod through the guide holes. The first guide rod is horizontally fixed in the guide groove.

[0008] As a further description of the above technical solution: On both sides of the top surface of the frame, two mirror-symmetrical side plates are vertically fixed respectively. One of the side plates is provided on the outside of each support block. A long circular hole is horizontally penetrated through the outside of the side plate. A stud is movably penetrated through the long circular hole. The stud is horizontally fixed on the side surface of the support block. A nut abutted against the outside of the side plate is threadedly sleeved on the outer edge of the stud.

[0009] As a further description of the above technical solution: Heating wires are embedded in both the driven roller and the edge-sealing roller, and the diameter of the arc-shaped groove is larger than the diameter of the driven roller.

[0010] The utility model has the following beneficial effects:

[0011] 1. Compared with the prior art, for this multi-layer film locking edge-sealing device, by movably connecting a support plate on the top surface of the frame and horizontally movably connecting two mirror-symmetrical edge-sealing rollers on the bottom surface of the support plate through a driving member, the distance between the two edge-sealing rollers can be adjusted according to the width of the film edge-sealing, so that this device can edge-seal films of different widths.

[0012] 2. By movably connecting the support plate to the top surface of the frame by using springs, support blocks, limit blocks and the second guide rod, the distance between the edge-sealing roller and the driven roller can be adjusted according to the thickness of the required edge-sealed film layers, so that the edge-sealing roller can tightly press different thickness and layer films.

[0013] 3. By providing side plates, long circular holes, studs, nuts and support blocks, it is convenient to fix the automatically adjusted distance between the edge-sealing roller and the driven roller, thereby further improving the tightness of the edge-sealing roller pressing the bottom film. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is an overall structure three-dimensional view of a multi-layer film locking edge-sealing device proposed by the utility model;

[0015] Figure 2Side sectional view of the overall structure of a multi-layer film locking and edge-sealing device proposed by the present utility model;

[0016] Figure 3 A multi-layer film locking and edge-sealing device proposed by the present utility model Figure 1 Enlarged view of the structure at position A in the figure.

[0017] Legend:

[0018] 1. Frame; 2. Arc groove; 3. Driven roller; 4. Long circular hole; 5. Side plate; 6. Support block; 7. Support plate; 8. First driving motor; 9. Screw; 10. Guide groove; 11. First guide rod; 12. Guide block; 13. Support seat; 14. Groove; 15. Edge-sealing roller; 16. U-shaped plate; 17. Second driving motor; 18. Spring; 19. Limit block; 20. Nut; 21. Stud; 22. Through hole; 23. Second guide rod; 24. Guide hole; 25. Threaded hole. Specific implementation mode

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0020] Refer to Figures 1 to 3 A multi-layer film locking and edge-sealing device provided by the present utility model includes a frame 1. An arc groove 2 is opened inside the frame 1. A driven roller 3 is rotatably connected inside the arc groove 2. The top surface of the driven roller 3 abuts against two axially symmetric edge-sealing rollers 15. Heating wires are buried inside both the driven roller 3 and the edge-sealing rollers 15. And the diameter of the arc groove 2 is larger than the diameter of the driven roller 3. The two edge-sealing rollers 15 are jointly movably connected to a support plate 7. The support plate 7 is located above the two edge-sealing rollers 15 and is movably connected to the top surface of the frame 1. Grooves 14 are opened on the inner walls of both sides of the frame 1. A downward U-shaped plate 16 is movably connected inside each groove 14. The edge-sealing roller 15 is rotatably connected inside the U-shaped plate 16. A second driving motor 17 is horizontally fixed on the side surface of the U-shaped plate 16. The output end of the second driving motor 17 is in transmission connection with the end of the edge-sealing roller 15. A guide groove 10 runs horizontally through the top surface of the support plate 7. Two mirror-symmetric guide blocks 12 are slidably inserted inside the guide groove 10. A U-shaped plate 16 is fixed to the bottom surface of each guide block 12. A driving member for driving the connection with the guide block 12 is provided on the top surface of the support plate 7;

[0021] The driving member includes a first driving motor 8 horizontally fixed on one side of the top surface of the support plate 7. The output end of the first driving motor 8 is drivingly connected to a screw rod 9. The end of the screw rod 9 is rotatably connected to a support seat 13. The support seat 13 is fixed on the other side of the top surface of the support plate 7. Thread holes 25 horizontally penetrate through the sides of both guiding blocks 12, and the thread directions of the two thread holes 25 are opposite. Guide holes 24 horizontally penetrate through the sides of both guiding blocks 12. The two guiding blocks 12 are axially slidably connected to a first guiding rod 11 through the guide holes 24. The first guiding rod 11 is horizontally fixed in the guiding groove 10;

[0022] By movably connecting a support plate 7 to the top surface of the frame 1 and horizontally movably connecting two mirror-symmetrical edge-sealing rollers 15 to the bottom surface of the support plate 7 through a driving member, the distance between the two edge-sealing rollers 15 can be adjusted according to the width of the film edge-sealing, so that the device can edge-seal films of different widths;

[0023] Refer to Figures 1 to 3 To improve the tightness of the edge-sealing rollers 15 pressing different layers of films, two mirror-symmetrical support blocks 6 are fixedly connected to both ends of the support plate 7 respectively. Through holes 22 vertically penetrate through the top surfaces of the support blocks 6. A second guiding rod 23 is axially slidably connected in the through holes 22. The second guiding rod 23 is vertically fixed on the top surface of the frame 1. A limiting block 19 is fixedly connected to the top surface of the second guiding rod 23. A spring 18 is sleeved on the outer edge of the second guiding rod 23. The spring 18 is located between the support plate 7 and the limiting block 19;

[0024] By movably connecting the support plate 7 to the top surface of the frame 1 by means of the spring 18, the support blocks 6, the limiting block 19 and the second guiding rod 23, the distance between the edge-sealing rollers 15 and the driven roller 3 can be adjusted according to the thickness of the required edge-sealing film layers, so that the edge-sealing rollers 15 can tightly press different thickness and layer films;

[0025] Refer to Figures 1 to 3 To fix the pressing distance between the edge-sealing rollers 15 and the film, two mirror-symmetrical side plates 5 are vertically fixed on both sides of the top surface of the frame 1 respectively. One side plate 5 is provided on the outside of each support block 6. A long circular hole 4 horizontally penetrates through the outside of the side plate 5. A stud 21 is movably connected in the long circular hole 4. The stud 21 is horizontally fixed on the side surface of the support block 6. A nut 20 abutted against the outside of the side plate 5 is threadedly sleeved on the outer edge of the stud 21;

[0026] By providing the side plates 5, the long circular holes 4, the studs 21, the nuts 20 and the support blocks 6, it is convenient to fix the automatically adjusted distance between the edge-sealing rollers 15 and the driven roller 3, thereby further improving the tightness of the edge-sealing rollers 15 pressing the bottom film.

[0027] Working principle: When in use, first loosen each nut 20, then lift the support plate 7 upward, so that the edge-sealing roller 15 is separated from the driven roller 3. At the same time, the support block 6 pushes the spring 18 to be compressed. Then, the first driving motor 8 drives the screw rod 9 to rotate. Under the action of two threaded holes 25 with opposite thread directions, the two guide blocks 12 perform relative displacement. The two guide blocks 12 respectively drive the edge-sealing rollers 15 in the two U-shaped plates 16 to perform relative displacement, so that the distance between the two edge-sealing rollers 15 is equal to the width of the film after edge-sealing. Then, the first driving motor 8 stops, and then the support plate 7 is released. The support plate 7 will fit against the top surface of the frame 1. At the same time, the spring 18 in the compressed state is reset. Then, place the multi-layer film with edge-sealing between the edge-sealing roller 15 and the driven roller 3. The edge-sealing roller 15 seals the two sides of the film. At the same time, the second driving motor 17 drives the edge-sealing roller 15 to rotate, playing a role of traction and feeding for the edge-sealing of the film. The edge-sealing roller 15 will drive the support plate 7 to rise appropriately according to the number of layers of the film. The support plate 7 drives the support block 6 to rise appropriately, so that the spring 18 is appropriately compressed. Then, screw on the nut 20 so that the nut 20 abuts against the outside of the side plate 5 to fix the distance between the edge-sealing roller 15 and the driven roller 3.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for sealing the edges of multi-layer films, comprising a frame (1), characterized in that: An arcuate groove (2) is provided inside the frame (1), a driven roller (3) is rotatably connected in the arcuate groove (2), the top surface of the driven roller (3) abuts against two axially symmetrical edge-sealing rollers (15), the two edge-sealing rollers (15) are movably connected to a support plate (7), the support plate (7) is located at the upper ends of the two edge-sealing rollers (15), and is movably connected to the top surface of the frame (1); A groove (14) is provided on each inner wall of both sides of the frame (1), and a downward U-shaped plate (16) is movably connected in each groove (14), and the edge banding roller (15) is rotatably connected in the U-shaped plate (16). A second drive motor (17) is fixed horizontally on the side of the U-shaped plate (16), and the output end of the second drive motor (17) is transmission-connected to the end of the edge banding roller (15). The top surface of the support plate (7) passes through the guide groove (10) transversely, and two mirror-symmetrical guide blocks (12) are slidably connected in the guide groove (10). A U-shaped plate (16) is fixed on the bottom surface of each guide block (12), and a drive member transmission-connected to the guide block (12) is provided on the top surface of the support plate (7); The driving member comprises a first driving motor (8) fixed horizontally on one side of the top surface of the support plate (7); the output end of the first driving motor (8) is connected to a screw rod (9); the end of the screw rod (9) is rotatably connected to a support seat (13); the support seat (13) is fixed to the top surface of the other side of the support plate (7); the side surfaces of the two guide blocks (12) are both horizontally penetrated by threaded holes (25), and the threads of the two threaded holes (25) are in opposite directions; the side surfaces of the two guide blocks (12) are both horizontally penetrated by guide holes (24); the two guide blocks (12) are axially slidably connected to a first guide rod (11) through the guide holes (24); the first guide rod (11) is horizontally fixed in the guide groove (10).

2. The device for locking and edge sealing a multi-layer film according to claim 1, characterized in that: Two mirror-symmetrical support blocks (6) are fixedly connected at both ends of the support plate (7); the top surface of the support block (6) vertically passes through a through hole (22); a second guide rod (23) is axially slidably connected in the through hole (22); the second guide rod (23) is vertically fixed to the top surface of the frame (1); the top surface of the second guide rod (23) is fixedly connected to a limit block (19); the outer edge of the second guide rod (23) is sleeved with a spring (18); the spring (18) is located between the support plate (7) and the limit block (19).

3. The device for locking and edge sealing a multi-layer film according to claim 2, characterized in that: Two mirror-symmetrical side panels (5) are vertically fixed on both sides of the top surface of the frame (1), and each side panel (5) is provided on the outer side of each support block (6). An oblong hole (4) is horizontally passed through the outer side of the side panel (5), and a stud (21) is movably inserted into the oblong hole (4). The stud (21) is horizontally fixed on the side of the support block (6), and the outer edge of the stud (21) is threadedly sleeved with a nut (20) that abuts against the outer side of the side panel (5).

4. The device for locking and edge sealing a multi-layer film according to claim 1, characterized in that: Heating wires are embedded in both the driven roller (3) and the edge-sealing roller (15), and the diameter of the arc-shaped groove (2) is larger than the diameter of the driven roller (3).

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