Automatic film splicing and heat sealing device

Abstract

The utility model relates to the technical field of packaging equipment, in particular to an automatic film splicing and heat sealing device which comprises two unwinding mechanisms, the two unwinding mechanisms are arranged in parallel in a staggered mode and are arranged in a non-collinear mode, a traction deviation rectifying mechanism, a heat sealing mechanism and a collecting mechanism are sequentially arranged on one sides of the two unwinding mechanisms, and the collecting mechanism is arranged on the other side of the two unwinding mechanisms. The unwinding mechanism comprises a base fixedly arranged on the ground, a first support is slidably arranged on the upper end face of the base through a servo motor, an unwinding roller is rotatably arranged at the top of the first support, and a film is wound around the outer surface of the unwinding roller. Through the arrangement of the unwinding mechanism, the deviation correcting mechanism, the heat sealing mechanism and the collecting mechanism, free adjustment of the width of the films and high-precision splicing of the two films can be achieved, the problem of joint dislocation caused by unwinding position deviation during splicing of the double-roll films is solved, the overlapping precision and the bonding strength of heat sealing joints are improved, the structure is compact, and the production cost is low. And the occupied area of the equipment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and specifically discloses an automatic film splicing and heat sealing device. Background Technology

[0002] The automatic film splicing and heat sealing device is a piece of equipment used to splice film materials through heat sealing technology. It is widely used in the packaging industry, agriculture and other fields. Its working principle is to melt the film materials by heating and sticking them together, thereby achieving a seamless connection, which can improve production efficiency and product quality.

[0003] However, most existing automatic film splicing and heat sealing devices rely mainly on manual operation, resulting in low efficiency and poor seam accuracy; the use of a single unwinding device makes it impossible to flexibly adjust the film width, requiring frequent equipment changes during use; when unwinding two rolls of film, positional deviations can easily lead to wrinkles and uneven strength of the film after heat sealing; and the equipment occupies a large area, making it unsuitable for the needs of small workshops. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides an automatic film splicing and heat sealing device, which solves the problem of misalignment of seams caused by unwinding position deviation when splicing double roll films, realizes automatic adaptation of films of different widths, reduces the frequency of manual adjustment, improves the overlap accuracy and bonding strength of heat-sealed seams, has a compact structure, reduces the footprint of the equipment, and expands the scope of application.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] The aforementioned automatic film splicing and heat sealing device includes two unwinding mechanisms, which are parallel and staggered, and are not collinear. A traction correction mechanism, a heat sealing mechanism, and a collecting mechanism are sequentially arranged on one side of each unwinding mechanism. Each unwinding mechanism includes a base fixed to the ground. A support frame is slidably mounted on the upper surface of the base via a servo motor. A feeding roller is rotatably mounted on the top of the support frame, and a film is wound around its outer surface. The traction correction mechanism includes a support frame fixed to the ground. A transition roller is rotatably mounted on the top of the support frame near the unwinding mechanism. Two traction rollers are rotatably mounted parallel to and spaced apart on the top of the support frame away from the unwinding mechanism. Two photoelectric sensors are fixedly mounted on one side of the transition roller in conjunction with the two unwinding mechanisms.

[0007] Furthermore, the heat sealing mechanism includes a support frame three fixedly installed on the ground, a heat sealing machine fixedly installed downward at the middle of the top of the support frame three, and a heat sealing table fixedly installed below the heat sealing machine, with the heat sealing table fixedly installed on the ground.

[0008] Furthermore, the heat sealing machine includes a cylinder fixedly mounted at the bottom end of the connecting rod, and a hot pressure roller is fixedly connected to the output end of the cylinder.

[0009] Furthermore, the heat sealing machine is fixedly connected to the support bracket three via a connecting rod, and the hot pressure roller can abut against the upper surface of the heat sealing table.

[0010] Furthermore, the collection mechanism includes a support four fixedly installed on the ground, with a collection roller rotatably mounted on the top of the support four.

[0011] Furthermore, both ends of the upper surface of the base are provided with transverse guide rails, and both ends of the lower surface of the bracket are provided with sliding grooves, with the transverse guide rails and sliding grooves slidably connected.

[0012] Furthermore, the servo motor is fixedly mounted at one end of the upper surface of the base, and the output end of the servo motor is fixedly connected to the bracket.

[0013] Furthermore, two photoelectric sensors are fixedly mounted at the middle of the bottom end of the second bracket, spaced apart and facing each other.

[0014] Furthermore, a PLC controller is installed on the photoelectric sensor, and the two photoelectric sensors are electrically connected to the two traction rollers respectively through the PLC controller.

[0015] Furthermore, the two photoelectric sensors are electrically connected to the two servo motors respectively via a PLC controller.

[0016] The beneficial effects of this utility model are:

[0017] This invention, through the setting of an unwinding mechanism, a correction mechanism, a heat sealing mechanism, and a collection mechanism, enables free adjustment of the film width and high-precision splicing of two films. It solves the problem of misalignment of the seam caused by the unwinding position deviation when splicing double-roll films, improves the overlap accuracy and bonding strength of the heat-sealed seam, increases production efficiency, reduces the frequency of manual adjustment, has a compact structure, reduces the footprint of the equipment, and expands the scope of application. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the traction correction mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the unwinding mechanism of this utility model;

[0021] Figure 4 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0022] In the diagram: 1. Unwinding mechanism; 2. Traction and correction mechanism; 3. Heat sealing mechanism; 4. Collection mechanism; 5. Base; 6. Support 1; 7. Servo motor; 8. Unwinding roller; 9. Support 2; 10. Transition roller; 11. Traction roller; 12. Photoelectric sensor; 13. Support 3; 14. Heat sealing machine; 15. Heat sealing table; 16. Cylinder; 17. Connecting rod; 18. Support 4; 19. Rewinding roller; 20. Transverse guide rail. Detailed Implementation

[0023] The present invention will now be described and explained in detail with reference to the accompanying drawings.

[0024] Example 1

[0025] like Figure 1-4 As shown, the automatic film splicing and heat sealing device includes two unwinding mechanisms 1, which are parallel and staggered, and are not collinear. A traction correction mechanism 2, a heat sealing mechanism 3, and a collection mechanism 4 are sequentially arranged on one side of each of the two unwinding mechanisms 1. The unwinding mechanism 1 includes a base 5 fixedly mounted on the ground. A support 6 is slidably mounted on the upper surface of the base 5 via a servo motor 7. A feeding roller 8 is rotatably mounted on the top of the support 6. A film is wound around the outer surface of the feeding roller 8. The traction correction mechanism 2 includes a support 9 fixedly mounted on the ground. A transition roller 10 is rotatably mounted on the top of the support 9 near the unwinding mechanism 1. Two traction rollers 11 are rotatably mounted parallel and spaced apart on the top of the support 9 away from the unwinding mechanism 1. Two photoelectric sensors 12 are fixedly mounted on one side of the transition roller 10 in conjunction with the two unwinding mechanisms 1.

[0026] The feeding roller 8, transition roller 10, two traction rollers 11, and take-up roller 19 are all rotated by their respective power supplies. When the equipment is working, connecting the power supply causes the feeding roller 8, transition roller 10, two traction rollers 11, and take-up roller 19 to rotate synchronously, thereby driving the film to move. The servo motor 7 can control the support 6 to move laterally, thereby adjusting the distance between the two rolls of film to adapt to different width requirements. The displacement accuracy driven by the servo motor 7 is ≤0.1mm. The feeding roller 8 uses an air shaft, which can quickly change rolls of material of different specifications. The two traction rollers 11 can be independently speed-adjusted to pull the two rolls of film respectively. The two photoelectric sensors 12 can detect the position of the two rolls of film in real time. This utility model, through the setting of the unwinding mechanism 1, the correction mechanism 2, the heat sealing mechanism 3, and the collection mechanism 4, can realize the free adjustment of the film width and the high-precision splicing of the two films. It solves the problem of misalignment of the seam caused by the deviation of the unwinding position when splicing double rolls of film, improves the overlap accuracy and bonding strength of the heat-sealed seam, improves the production efficiency, reduces the frequency of manual adjustment, has a compact structure, reduces the footprint of the equipment, and improves the scope of application.

[0027] The heat sealing mechanism 3 includes a support 3 13 fixedly installed on the ground. A heat sealing machine 14 is fixedly installed downward at the middle of the top of the support 3 13. A heat sealing table 15 is fixedly installed below the heat sealing machine 14. The heat sealing table 15 is fixedly installed on the ground.

[0028] The heat sealing machine 14 includes a cylinder 16 fixedly mounted at the bottom of a connecting rod, and a hot pressure roller is fixedly connected to the output end of the cylinder 16.

[0029] The heat sealing machine 14 is fixedly connected to the bracket 13 via the connecting rod 17, and the hot pressure roller can abut against the upper surface of the heat sealing table 15.

[0030] With the above settings, the temperature of the heat sealing machine 14 can be adjusted within 100~200℃, and the pressure can be adjusted within 0.1~0.5MPa; the outer surface of the hot press roller is covered with a silicone layer, and the heat sealing pressure of the hot press roller is dynamically adjusted by the cylinder 16 to ensure that the overlap of the two film seams is constant.

[0031] The collection mechanism 4 includes a support frame 18 fixedly installed on the ground, and a collection roller 19 is rotatably installed on the top of the support frame 18.

[0032] Both ends of the upper surface of the base 5 are provided with horizontal guide rails 20, and both ends of the lower surface of the bracket 6 are provided with sliding grooves. The horizontal guide rails 20 and the sliding grooves are slidably connected.

[0033] The servo motor 7 is fixedly mounted on one end of the upper surface of the base 5, and the output end of the servo motor 7 is fixedly connected to the bracket 6.

[0034] Two photoelectric sensors 12 are fixedly mounted at the middle of the bottom end of bracket 2 9, spaced apart and facing each other.

[0035] A PLC controller is installed on the photoelectric sensor 12, and the two photoelectric sensors 12 are electrically connected to the two traction rollers 11 respectively through the PLC controller.

[0036] Two photoelectric sensors 12 are electrically connected to two servo motors 7 respectively through a PLC controller.

[0037] With the above setup, the two photoelectric sensors 12 are electrically connected to the two servo motors 7 via the PLC controller. The photoelectric sensors 12 can detect the position of the film in real time. The PLC controller receives the signal from the photoelectric sensors 12 and feeds the signal back to the servo motors 7, which then start the servo motors 7 to fine-tune the lateral position of the film, thereby achieving automatic alignment of the two rolls of film. The photoelectric sensors 12 are electrically connected to the traction roller 11 via the PLC controller, which can control the rotation speed of the traction roller 11. Through the closed-loop control of the photoelectric sensors 12 and the PLC controller, the seam overlap error is ≤ ±0.3mm.

[0038] Working principle and process:

[0039] In use, adjust the spacing between the two unwinding mechanisms 1 according to the width of the film, and move the two unwinding mechanisms 1 to the appropriate position. At this time, connect the power supply to start the rotation of the unwinding roller 8, transition roller 10, two traction rollers 11 and take-up roller 19. The two rolls of film enter the traction correction mechanism 2 through the guide roller 10. The two photoelectric sensors 12 detect the edge position of the two rolls of film respectively, and feed the signals back to the two servo motors 7 through the two PLC controllers. The two servo motors 7 adjust the position of the two unwinding rollers 8 respectively, so that the two rolls of film form a suitable overlap. At the same time, the two photoelectric sensors 12 detect the edge position of the two rolls of film respectively. Sensor 12 feeds signals back to the two traction rollers 11 through two PLC controllers, causing the two traction rollers 11 to rotate faster. The two rolls of film pass under the traction roller 11 on the side closer to the guide roller 10 and above the traction roller 11 on the side farther from the guide roller 10, and are conveyed to the heat sealing table 15. At this time, the heat sealing machine 14 is started to drive the cylinder 16 to work, so that the hot pressing roller continuously heat-presses the overlapping area of ​​the two rolls of film at a suitable temperature and pressure, and then outputs the spliced ​​wide film. The spliced ​​wide film is wrapped around the outer surface of the take-up roller 19 to realize the collection of the wide film.

Claims

1. An automatic film splicing and heat sealing device, comprising two unwinding mechanisms (1), characterized in that, Two unwinding mechanisms (1) are arranged in parallel and staggered positions, and the two unwinding mechanisms (1) are not collinear. A traction correction mechanism (2), a heat sealing mechanism (3) and a collection mechanism (4) are arranged sequentially on one side of the two unwinding mechanisms (1). The unwinding mechanism (1) includes a base (5) fixedly set on the ground. A bracket (6) is slidably set on the upper surface of the base (5) through a servo motor (7). A feeding roller (8) is rotatably set on the top of the bracket (6). A film is wrapped around the outer surface of the feeding roller (8). The traction correction mechanism (2) includes a bracket (9) fixedly set on the ground. A transition roller (10) is rotatably set on the top of the bracket (9) near the unwinding mechanism (1). Two traction rollers (11) are rotatably set on the top of the bracket (9) away from the unwinding mechanism (1) in parallel and at intervals. Two photoelectric sensors (12) are fixedly set on one side of the transition roller (1) in cooperation with the two unwinding mechanisms (1).

2. The automatic film splicing and heat sealing device according to claim 1, characterized in that, The heat sealing mechanism (3) includes a support three (13) fixedly installed on the ground. A heat sealing machine (14) is fixedly installed downward at the middle of the top of the support three (13). A heat sealing table (15) is fixedly installed below the heat sealing machine (14). The heat sealing table (15) is fixedly installed on the ground.

3. The automatic film splicing and heat sealing device according to claim 2, characterized in that, The heat sealing machine (14) includes a cylinder (16) fixedly installed at the bottom of the connecting rod, and a hot pressure roller is fixedly connected to the output end of the cylinder (16).

4. The automatic film splicing and heat sealing device according to claim 3, characterized in that, The heat sealing machine (14) is fixed to the support bracket three (13) by the connecting rod (17), and the hot pressure roller can abut against the upper surface of the heat sealing table (15).

5. The automatic film splicing and heat sealing device according to claim 1, characterized in that, The collection mechanism (4) includes a support four (18) fixedly set on the ground, and a collection roller (19) is rotatably set on the top of the support four (18).

6. The automatic film splicing and heat sealing device according to claim 1, characterized in that, Both ends of the upper surface of the base (5) are provided with transverse guide rails (20), and both ends of the lower surface of the bracket (6) are provided with sliding grooves. The transverse guide rails (20) and the sliding grooves are slidably connected.

7. The automatic film splicing and heat sealing device according to claim 1, characterized in that, The servo motor (7) is fixedly installed at one end of the upper surface of the base (5), and the output end of the servo motor (7) is fixedly connected to the bracket (6).

8. The automatic film splicing and heat sealing device according to claim 1, characterized in that, Two photoelectric sensors (12) are fixedly installed at the middle of the bottom of the bracket (9) with spacing and facing each other.

9. The automatic film splicing and heat sealing device according to claim 1, characterized in that, A PLC controller is installed on the photoelectric sensor (12), and the two photoelectric sensors (12) are electrically connected to the two traction rollers (11) respectively through the PLC controller.

10. The automatic film splicing and heat sealing device according to claim 9, characterized in that, Two photoelectric sensors (12) are electrically connected to two servo motors (7) respectively through a PLC controller.

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