Film sealing device of adhesive tape plastic packaging machine
By using an electric push rod and a sensor in conjunction with the lifting and lowering of the adjusting roller, the film tension of the sealing device of the tape sealing machine is automatically adjusted, which solves the problem of unstable tension during film conveying and improves operating efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU YINGTONG BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-05-12
AI Technical Summary
现有胶带塑封机的封膜装置在输送膜时缺乏张力调整,导致膜过松起皱或过紧断裂,降低作业效果。
采用电动推杆驱动调节辊升降,结合传感器实时监测膜张力状态,实现膜张力的自动精确调节,并通过电机驱动送料辊与收料辊的联动,实现送料与余膜收卷的同步自动化。
It effectively prevents the membrane from wrinkling due to being too loose or breaking due to being too tight, improves work efficiency, and ensures the stability of tension adjustment and synchronous automated operation.
Smart Images

Figure CN224226321U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sealing devices, and more particularly to a sealing device for a tape sealing machine. Background Technology
[0002] The sealing device of the tape sealing machine is its core component. It is used to wrap the tape inside the film and seal it. The film is installed on the film frame, passes through the film feeding roller and the conveyor belt, and is fixed on the film clamping assembly and the sealing assembly. The tape is placed on the film, the equipment is started, and the conveyor roller drives the film to move and seal.
[0003] A search revealed that Chinese Patent Publication No. CN220263395U discloses a sealing device for a tape sealing machine. By setting up a rotating rod, positive and negative lead screws, and a fixed plate, rotating the rotating rod drives the positive and negative lead screws to rotate, which in turn drives the square rods at both ends of the positive and negative lead screws and the transmission rollers to move in opposite directions along the guide groove. By moving the two transmission rollers in opposite directions, the spacing can be adjusted according to the thickness of the plastic being conveyed, increasing the convenience of using the transmission rollers.
[0004] In the above technical solutions, the spacing can be adjusted according to the thickness of the conveyed plastic by means of rotating rods, positive and negative lead screws, etc. However, the lack of tension adjustment during film conveying can lead to the phenomenon of the film being too loose and wrinkled or too tight and breaking, reducing the working effect. Therefore, a sealing device for a tape sealing machine is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a sealing device for a tape sealing machine, which aims to improve the problem of reduced work efficiency caused by the lack of tension adjustment when conveying film in the sealing device of the tape sealing machine in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a sealing device for a tape sealing machine, comprising a machine body, a cylinder fixedly connected to the top of the machine body, a heat sealing device fixedly connected to the output end of the cylinder via a connecting plate, a motor fixedly connected to the outer wall of the machine body via a bracket, a feeding roller fixedly connected to the output end of the motor, a conveyor belt driven by a transmission wheel connected to the outer wall of the feeding roller, a receiving roller also driven by a transmission wheel connected to the conveyor belt, a guide roller rotatably connected to the inner wall of the machine body, an mounting plate fixedly connected to the inner surface of the machine body, an electric push rod fixedly connected to the top of the mounting plate, a support frame fixedly connected to the output end of the electric push rod, a collar fixedly connected to the bottom of the support frame via a vertical pole, and an adjusting roller provided on the outer wall of the guide roller.
[0007] As a further description of the above technical solution:
[0008] The outer wall of the receiving roller is rotatably connected to the inner wall of the machine body, and the outer wall of the feeding roller is rotatably connected to the inner wall of the machine body.
[0009] As a further description of the above technical solution:
[0010] The inner wall of the collar is fixedly connected to the outer wall of the adjusting roller, and the adjusting roller is located on the outer wall of the guide roller away from the feeding roller.
[0011] As a further description of the above technical solution:
[0012] Sensors are fixedly connected to the inner wall of the support frame.
[0013] As a further description of the above technical solution:
[0014] The outer wall of the support frame is in contact with the inner surface of the machine body.
[0015] As a further description of the above technical solution:
[0016] The sensor is located on the outer wall of the support frame near the feed roller.
[0017] As a further description of the above technical solution:
[0018] The inner wall of the machine body is provided with a through groove, and a slide block is slidably connected to the inner wall of the through groove.
[0019] As a further description of the above technical solution:
[0020] The outer wall of the slide is rotatably connected to the end of the adjusting roller.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, the adjusting roller is driven to rise and fall by an electric push rod, and the tension of the film is monitored in real time by a sensor, so as to realize the automatic and precise adjustment of the film tension, effectively preventing the film from wrinkling due to being too loose or breaking due to being too tight. At the same time, the feeding roller is driven by a motor and linked to the take-up roller by a conveyor belt, so as to realize the synchronous automation of feeding and rewinding of the remaining film, thereby improving the work efficiency.
[0023] 2. In this utility model, the sliding cooperation between the slide block and the through groove ensures that the adjustment roller is stable and without deviation during the lifting process. Combined with the linkage between the electric push rod and the sensor, the membrane tension is adaptively adjusted, ensuring the stability of the tension adjustment. Attached Figure Description
[0024] Figure 1 This is a front view schematic diagram of the main structure of the sealing device of a tape sealing machine proposed in this utility model;
[0025] Figure 2This is a rear view schematic diagram of the main structure of the sealing device of a tape sealing machine proposed in this utility model;
[0026] Figure 3 This is a bottom view schematic diagram of the main structure of the sealing device of the tape sealing machine proposed in this utility model;
[0027] Figure 4 This utility model proposes a sealing device for a tape sealing machine. Figure 3 Enlarged schematic diagram of region A in the middle.
[0028] Legend:
[0029] 1. Machine body; 2. Cylinder; 3. Heat sealing device; 4. Feeding roller; 5. Receiving roller; 6. Motor; 7. Conveyor belt; 8. Guide roller; 9. Adjusting roller; 10. Through groove; 11. Slide; 12. Mounting plate; 13. Electric push rod; 14. Collar; 15. Support frame; 16. Sensor. Detailed Implementation
[0030] 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.
[0031] Reference Figures 1-3 This utility model provides an embodiment of a sealing device for a tape sealing machine, comprising a machine body 1, a cylinder 2 fixedly connected to the top of the machine body 1, a heat sealing device 3 fixedly connected to the output end of the cylinder 2 via a connecting plate, a motor 6 fixedly connected to the outer wall of the machine body 1 via a bracket, a feeding roller 4 fixedly connected to the output end of the motor 6, the outer wall of the feeding roller 4 being rotatably connected to the inner wall of the machine body 1, the feeding roller 4 conveying the film, a conveyor belt 7 being driven and connected to the outer wall of the feeding roller 4 via a transmission wheel, the conveyor belt 7 being driven and connected to a take-up roller 5 via a transmission wheel, the take-up roller 5 winding up the heat-sealed film, the feeding roller 4 and the take-up roller 5 being located at the left and right ends of the heat sealing device 3 respectively, the outer wall of the take-up roller 5 being rotatably connected to the inner wall of the machine body 1, and a guide roller 8 being rotatably connected to the inner wall of the machine body 1, the guide roller 8 being located below the feeding roller 4.
[0032] Reference Figures 2-4An installation plate 12 is fixedly connected to the inner surface of the machine body 1. An electric push rod 13 is fixedly connected to the top of the installation plate 12. A support frame 15 is fixedly connected to the output end of the electric push rod 13. The outer wall of the support frame 15 is in contact with the inner surface of the machine body 1. A sensor 16 is fixedly connected to the inner wall of the support frame 15. The sensor 16 is used to sense the degree of adjustment of the film tension of the adjusting roller 9. The sensor 16 is located on the outer wall of the support frame 15 near the feeding roller 4. A collar 14 is fixedly connected to the bottom of the support frame 15 through a vertical rod. An adjusting roller 9 is provided on the outer wall of the guide roller 8. The inner wall of the collar 14 is fixedly connected to the outer wall of the adjusting roller 9. The adjusting roller 9 is located on the outer wall of the guide roller 8 away from the feeding roller 4. The film is wound from above the guide roller 8 to below the adjusting roller 9 and onto the take-up roller 5. The electric push rod 13 drives the adjusting roller 9 to rise and fall, thereby adjusting the tension of the film.
[0033] Reference Figure 4 The inner wall of the machine body 1 is provided with a through groove 10, and a slide block 11 is slidably connected to the inner wall of the through groove 10. The outer wall of the slide block 11 is rotatably connected to the end of the adjusting roller 9. When the adjusting roller 9 is raised or lowered, the slide block 11 can move up and down inside the through groove 10 to ensure the stability of the raising and lowering of the adjusting roller 9.
[0034] Working principle: The motor 6 starts, driving the feeding roller 4 to rotate and convey the film. The film starts from the feeding roller 4, passes above the guide roller 8, winds around the adjusting roller 9, and finally reaches the take-up roller 5. At the same time, the motor 6 drives the conveyor belt 7 through the transmission wheel, which in turn drives the take-up roller 5 to rotate, realizing the winding of the heat-sealed film. When plastic sealing is required, the cylinder 2 is activated, and its output end drives the heat sealing device 3 to move down through the connecting plate to perform the heat sealing operation on the film. During the film conveying process, if the film tension changes, the sensor 16 can sense the degree of adjustment of the adjusting roller 9 and the film tension and transmit the signal to the control system. The control system controls the electric push rod 13 to move according to the signal. The output end of the electric push rod 13 drives the support frame 15 to rise and fall. Since the collar 14 is fixedly connected to the adjusting roller 9, it drives the adjusting roller 9 to rise and fall, thereby realizing the adjustment of the film tension. During the rising and falling of the adjusting roller 9, the slide 11 moves up and down in the through groove 10 to ensure the stability of the rising and falling of the adjusting roller 9, so that the entire sealing process can be carried out stably and efficiently.
[0035] 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 sealing device for a tape sealing machine, comprising a body (1), wherein a cylinder (2) is fixedly connected to the top of the body (1), and a heat sealing device (3) is fixedly connected to the output end of the cylinder (2) via a connecting plate, characterized in that: The outer wall of the machine body (1) is fixedly connected to a motor (6) via a bracket. The output end of the motor (6) is fixedly connected to a feeding roller (4). The outer wall of the feeding roller (4) is connected to a conveyor belt (7) via a transmission wheel. The conveyor belt (7) is also connected to a receiving roller (5) via a transmission wheel. The inner wall of the machine body (1) is rotatably connected to a guide roller (8). The inner surface of the machine body (1) is fixedly connected to an mounting plate (12). The top of the mounting plate (12) is fixedly connected to an electric push rod (13). The output end of the electric push rod (13) is fixedly connected to a support frame (15). The bottom of the support frame (15) is fixedly connected to a collar (14) via a vertical pole. The outer wall of the guide roller (8) is provided with an adjusting roller (9).
2. The sealing device of a tape sealing machine according to claim 1, characterized in that: The outer wall of the receiving roller (5) is rotatably connected to the inner wall of the machine body (1), and the outer wall of the feeding roller (4) is rotatably connected to the inner wall of the machine body (1).
3. The sealing device of a tape sealing machine according to claim 1, characterized in that: The inner wall of the collar (14) is fixedly connected to the outer wall of the adjusting roller (9), and the adjusting roller (9) is located on the outer wall of the guide roller (8) away from the feeding roller (4).
4. The sealing device of a tape sealing machine according to claim 1, characterized in that: A sensor (16) is fixedly connected to the inner wall of the support frame (15).
5. The sealing device of a tape sealing machine according to claim 1, characterized in that: The outer wall of the support frame (15) is in contact with the inner surface of the body (1).
6. The sealing device of a tape sealing machine according to claim 4, characterized in that: The sensor (16) is located on the outer wall of the support frame (15) near the feeding roller (4).
7. The sealing device of a tape sealing machine according to claim 1, characterized in that: The inner wall of the body (1) is provided with a through groove (10), and a slide block (11) is slidably connected to the inner wall of the through groove (10).
8. The sealing device of a tape sealing machine according to claim 7, characterized in that: The outer wall of the slide (11) is rotatably connected to the end of the adjusting roller (9).