Automatic film splicing device for large roll packaging film

Abstract

The utility model relates to film equipment technical field especially is a kind of big roll packaging film automatic film connecting device, including base, the upper end surface both sides of base are respectively fixedly connected with support no.

Description

Technical Field

[0001] This utility model relates to the field of film splicing equipment technology, and in particular to an automatic film splicing device for large roll packaging film. Background Technology

[0002] For packaging machines that use flexible materials, such as plastic film or paper-plastic film for bag making, the machine needs to be stopped and a new film roll needs to be connected when the film roll is used up. After the film splicing operation is completed, the packaging machine is restarted to resume normal operation. To facilitate film splicing, the packaging machine is equipped with a film splicing device.

[0003] The existing patent with publication number CN2797214Y discloses a film-feeding device for a packaging machine. The device consists of a pressure rod, a film-feeding plate, an operating handle, a linkage mechanism, and a rotating shaft. The linkage mechanism consists of a connecting rod, a crank, and a slider. The rotating shaft is connected to the operating handle through the crank of the linkage mechanism and is installed on the frame of the packaging machine. The crank is fixed on the rotating shaft, and the other end is connected to the connecting rod. The slider is connected to the connecting rod, the film-feeding plate is welded to the slider, and the pressure rod is fixed on the frame of the packaging machine.

[0004] Based on the above-mentioned existing technology, it is known that the film splicing mechanism of existing packaging machines requires manual operation during the film splicing process, which poses certain risks. Therefore, we propose an improved automatic film splicing device for large roll packaging films. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic film splicing device for large roll packaging films.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic film splicing device for large roll packaging film, comprising a base, with a first bracket and a second bracket fixedly connected to both sides of the upper end face of the base respectively; a first unwinding roller rotatably connected to the first bracket, and a second unwinding roller rotatably connected to the second bracket; a first connecting plate fixedly connected between the front and rear plates of the first bracket, and a second connecting plate fixedly connected between the front and rear plates of the second bracket; a first electric push rod fixedly connected to the outer wall of the first connecting plate; a first mounting frame fixedly connected to the output end of the first electric push rod; a first adjusting roller rotatably connected to the first mounting frame; a second electric push rod fixedly connected to the outer wall of the second connecting plate; a second mounting frame fixedly connected to the output end of the second electric push rod; and a second adjusting roller rotatably connected to the second mounting frame; the first adjusting roller and the second adjusting roller are arranged on the same horizontal plane.

[0007] As a further description of the above technical solution:

[0008] A first limiting rod is slidably connected to the first connecting plate, and a second limiting rod is slidably connected to the second connecting plate. One end of the first limiting rod is fixedly connected to the first mounting bracket, and one end of the second limiting rod is fixedly connected to the second mounting bracket.

[0009] The above technical solution utilizes a limiting rod to provide auxiliary support to the mounting frame, thereby improving the stability of the adjusting roller during movement.

[0010] As a further description of the above technical solution:

[0011] A fixing plate is fixedly connected to the outer wall of the support one near the support two. A transition roller is rotatably connected to the fixing plate. The transition roller is located at a position below and between the first adjusting roller and the second adjusting roller.

[0012] With the above technical solution, the packaging film passes through the top of the transition roller and exits from the bottom of the transition roller.

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

[0014] A drive motor is fixedly connected to the outer wall of the fixed plate, and the output end of the drive motor is fixedly connected to one end of the rotating shaft of the fixedly connected transition roller.

[0015] The above technical solution enables the drive motor to rotate the transition roller.

[0016] As a further description of the above technical solution:

[0017] An adjusting shaft is rotatably connected to the second mounting bracket. The front and rear ends of the adjusting shaft pass through the second mounting bracket and are fixedly connected to connecting arms. A pressure roller is rotatably connected between the two connecting arms, and the pressure roller is located below the second adjusting roller.

[0018] Through the above technical solution, the pressure roller is used to adjust the tension of the packaging film.

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

[0020] A mounting plate is fixedly connected to the outer wall of the second mounting bracket, and a servo motor is fixedly connected to the mounting plate. The output end of the servo motor is fixedly connected to one end of the adjustment shaft.

[0021] Through the above technical solution, a servo motor is used to control the rotation of the adjustment shaft, which in turn drives the pressure roller to swing through the connecting arm, thereby adjusting the tension of the packaging film.

[0022] This utility model has the following beneficial effects:

[0023] 1. Compared with existing technologies, this automatic film splicing device for large roll packaging film, through the coordinated structure of a first unwinding roller, a second unwinding roller, a first connecting plate, a first electric push rod, a first mounting frame, a first adjusting roller, a second connecting plate, a second electric push rod, a second mounting frame, and a second adjusting roller, can pre-adhere double-sided adhesive to the outer wall of the spare packaging film. After the main packaging film is used up, the first and second electric push rods respectively drive the first and second mounting frames to move relative to each other, thereby causing the first and second adjusting rollers to move closer together. Then, the motor is started, driving the first adjusting roller to rotate, and the contact friction then drives the second adjusting roller to rotate accordingly. This causes the double-sided adhesive to adhere to the main packaging film on the first adjusting roller, thus pulling the spare packaging film to continue moving for use. This avoids manual operation during the film splicing process, improving both safety and efficiency.

[0024] 2. Compared with the prior art, this automatic film splicing device for large roll packaging film, by setting a pressure roller, servo motor, adjusting shaft and connecting arm structure on the second mounting frame, can pass the packaging film between the pressure roller and the second adjusting roller and pass it over the transition roller when the tension of the packaging film needs to be adjusted. Then, the servo motor drives the adjusting shaft to rotate, and then the position of the pressure roller is adjusted by the connecting arm, thereby adjusting the tension of the packaging film. Attached Figure Description

[0025] Figure 1 This is a top view of the rear structure of an automatic film splicing device for large roll packaging film proposed in this utility model;

[0026] Figure 2 This is a top view of the front structure of an automatic film splicing device for large roll packaging film proposed in this utility model;

[0027] Figure 3 This is a top view of the front structure of an automatic film splicing device for large roll packaging film proposed in this utility model;

[0028] Figure 4 This is a bottom view of the rear structure of an automatic film splicing device for large roll packaging film proposed in this utility model.

[0029] Legend:

[0030] 1. Base; 2. Bracket 1; 3. Bracket 2; 4. First unwinding roller; 5. Second unwinding roller; 6. Pressure roller; 7. Servo motor; 8. First connecting plate; 9. First electric push rod; 10. First limit rod; 11. First mounting frame; 12. First adjusting roller; 13. Fixing plate; 14. Transition roller; 15. Second connecting plate; 16. Second electric push rod; 17. Second limit rod; 18. Second mounting frame; 19. Second adjusting roller; 20. Adjusting shaft; 21. Connecting arm. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1-4 This utility model provides an automatic film splicing device for large roll packaging film: it includes a base 1, with a bracket 2 and a bracket 3 fixedly connected to both sides of the upper end face of the base 1 respectively. A first unwinding roller 4 is rotatably connected to the bracket 2, and a second unwinding roller 5 is rotatably connected to the bracket 3. A first connecting plate 8 is fixedly connected between the front and rear plates of the bracket 2, and a second connecting plate 15 is fixedly connected between the front and rear plates of the bracket 3. A first electric push rod 9 is fixedly connected to the outer wall of the first connecting plate 8. A first mounting frame 11 is fixedly connected to the output end of the first electric push rod 9. A first adjusting roller 12 is rotatably connected to the first mounting frame 11. A second electric push rod 16 is fixedly connected to the outer wall of the second connecting plate 15. A second mounting frame 18 is fixedly connected to the output end of the second electric push rod 16. A second adjusting roller 19 is rotatably connected to the second mounting frame 18. The first adjusting roller 12 and the second adjusting roller 19 are arranged on the same horizontal plane.

[0033] A first limiting rod 10 is slidably connected to the first connecting plate 8, and a second limiting rod 17 is slidably connected to the second connecting plate 15. One end of the first limiting rod 10 is fixedly connected to the first mounting frame 11, and one end of the second limiting rod 17 is fixedly connected to the second mounting frame 18. The limiting rods provide auxiliary support to the mounting frame, thereby improving the stability of the adjusting roller when it moves.

[0034] A fixing plate 13 is fixedly connected to the outer wall of the bracket 12 near the bracket 23. A transition roller 14 is rotatably connected to the fixing plate 13. The transition roller 14 is located at a position below the first adjusting roller 12 and the second adjusting roller 19. The packaging film passes through the top of the transition roller 14 and exits from the bottom of the transition roller 14.

[0035] A drive motor is fixedly connected to the outer wall of the fixed plate 13. The output end of the drive motor is fixedly connected to one end of the rotating shaft of the fixedly connected transition roller 14. The drive motor is used to drive the transition roller 14 to rotate.

[0036] An adjusting shaft 20 is rotatably connected to the second mounting frame 18. The front and rear ends of the adjusting shaft 20 pass through the second mounting frame 18 and are fixedly connected to connecting arms 21. A pressure roller 6 is rotatably connected between the two connecting arms 21. The pressure roller 6 is located below the second adjusting roller 19 and is used to adjust the tension of the packaging film.

[0037] A mounting plate is fixedly connected to the outer wall of the second mounting frame 18. A servo motor 7 is fixedly connected to the mounting plate. The output end of the servo motor 7 is fixedly connected to one end of the adjustment shaft 20. The servo motor 7 is used to control the rotation of the adjustment shaft 20, thereby driving the pressure roller 6 to swing through the connecting arm 21 to adjust the tension of the packaging film.

[0038] Working principle: During use, if the packaging film output from the film splicing device is connected to a tension adjustment device, the packaging film on the first unwinding roller 4 passes over the first adjusting roller 12, then passes between the first adjusting roller 12 and the transition roller 14, and exits under the transition roller 14. The spare packaging film on the second unwinding roller 5 passes over the second adjusting roller 19 and falls vertically for a certain length under gravity. Before starting the machine, manually apply double-sided tape to the packaging film above the second adjusting roller 19. After the packaging film on the first unwinding roller 4 breaks, start the first electric push rod 9 and the second electric push rod 16. Here, you can manually observe and then start the electric push rods, or you can add... The photoelectric detection switch automatically activates the electric push rod. Considering this is existing technology, it will not be elaborated here. When the first electric push rod 9 and the second electric push rod 16 are activated, they will drive the first mounting frame 11 and the second mounting frame 18 to move relative to each other, thereby driving the first adjusting roller 12 and the second adjusting roller 19 to come closer together and press the packaging film together. At this time, the drive motor drives the transition roller 14 to rotate, thereby driving the packaging film to move. Under the action of friction, the second adjusting roller 19 will also rotate, thereby driving the spare packaging film attached to the second unwinding roller 5 to move. Thus, the two packaging films are adhered to their ends using double-sided adhesive, forming an automatic film splicing operation, which is convenient and safe.

[0039] In the above process, if the packaging film output from the film splicing device is connected to an external device without tension adjustment, the packaging film on the first unwinding roller 4 is used as a spare, passes through the top of the first adjusting roller 12 and falls vertically, and double-sided adhesive is adhered to the surface of the film. Then the packaging film on the second unwinding roller 5 is used as the main film, passes through the top of the second adjusting roller 19, then passes between the second adjusting roller 19 and the pressure roller 6, then passes under the pressure roller 6 and around the top of the transition roller 14 and then exits from under the transition roller 14. The servo motor 7 drives the adjusting shaft 20 to rotate, which in turn drives the pressure roller 6 to swing through the connecting arm 21, thereby realizing the tension adjustment of the packaging film.

[0040] 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. An automatic film splicing device for large roll packaging film, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to two sides of the support, namely the first support (2) and the second support (3). The first unwinding roller (4) is rotatably connected to the first support (2), and the second unwinding roller (5) is rotatably connected to the second support (3). The first connecting plate (8) is fixedly connected between the front and rear plates of the first support (2), and the second connecting plate (15) is fixedly connected between the front and rear plates of the second support (3). The first electric push rod (9) is fixedly connected to the outer wall of the first connecting plate (8). The output end of the first electric push rod (9) is fixedly connected to the first mounting frame (11). The first adjusting roller (12) is rotatably connected to the first mounting frame (11). The second electric push rod (16) is fixedly connected to the outer wall of the second connecting plate (15). The output end of the second electric push rod (16) is fixedly connected to the second mounting frame (18). The second adjusting roller (19) is rotatably connected to the second mounting frame (18). The first adjusting roller (12) and the second adjusting roller (19) are set on the same horizontal plane.

2. The automatic film splicing device for large roll packaging film according to claim 1, characterized in that: A first limiting rod (10) is slidably connected to the first connecting plate (8), and a second limiting rod (17) is slidably connected to the second connecting plate (15). One end of the first limiting rod (10) is fixedly connected to the first mounting bracket (11), and one end of the second limiting rod (17) is fixedly connected to the second mounting bracket (18).

3. The automatic film splicing device for large roll packaging film according to claim 1, characterized in that: A fixing plate (13) is fixedly connected to the outer wall of the support one (2) near the support two (3). A transition roller (14) is rotatably connected to the fixing plate (13). The transition roller (14) is located at a position below the first adjusting roller (12) and the second adjusting roller (19).

4. The automatic film splicing device for large roll packaging film according to claim 3, characterized in that: A drive motor is fixedly connected to the outer wall of the fixed plate (13), and the output end of the drive motor is fixedly connected to one end of the rotating shaft of the fixedly connected transition roller (14).

5. The automatic film splicing device for large roll packaging film according to claim 1, characterized in that: An adjusting shaft (20) is rotatably connected to the second mounting frame (18). The front and rear ends of the adjusting shaft (20) pass through the second mounting frame (18) and are fixedly connected to connecting arms (21). A pressure roller (6) is rotatably connected between the two connecting arms (21). The pressure roller (6) is located below the second adjusting roller (19).

6. The automatic film splicing device for large roll packaging film according to claim 1, characterized in that: A mounting plate is fixedly connected to the outer wall of the second mounting bracket (18), and a servo motor (7) is fixedly connected to the mounting plate. The output end of the servo motor (7) is fixedly connected to one end of the adjustment shaft (20).

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