A film stretching assembly for a sealing machine

By using a film-pulling assembly design that combines electromagnetic and resetting components, the sealing machine can clamp materials during movement, solving the problem of stagnation and waiting in existing technologies and improving material processing efficiency and clamping reliability.

CN224277736UActive Publication Date: 2026-05-26上海陌度生物科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
上海陌度生物科技有限公司
Filing Date
2025-08-07
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The film-pulling assembly of existing sealing machines needs to stop after moving to the end of the material to complete the clamping action, which affects the continuity of processing and wastes time.

Method used

Design a film-pulling assembly for a sealing machine. By using an electromagnetic component and a reset component, the movable clamping plate can clamp the material during movement. The clamping plate is rotated by electromagnetic force and resets when the electromagnetic component is deactivated. A spring provides the reset power to ensure clamping stability.

Benefits of technology

The clamping action is completed during the continuous movement of the film stretching assembly, reducing waiting time, improving material processing efficiency, ensuring clamping stability and reliability, and preventing materials from loosening or falling off.

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Abstract

This utility model provides a film-pulling assembly for a sealing machine, belonging to the technical field of sealing machine technology. It includes a support frame that can slide linearly on the sealing machine; a clamping structure fixed to the support frame, comprising a hinged movable clamping plate, the rotation of which clamps or releases the material; a reset component connected to the movable clamping plate, used to drive the movable clamping plate to rotate and then push it back to its original position; and an electromagnetic component that indirectly drives the movable clamping plate to rotate via electromagnetic force. This utility model allows the reset component to reset the moment the electromagnetic component stops working, thus enabling the reset component to drive the clamping mechanism to clamp and fix the material. This allows the material end to be pulled during the movement of the film-pulling assembly, thereby indirectly improving material processing efficiency.
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Description

Technical Field

[0001] This utility model relates to the technical field of sealing machine equipment, specifically to a film stretching component for a sealing machine. Background Technology

[0002] In the field of sealing equipment technology, the feeding process is one of the key steps to ensure the smooth operation of sealing. Traditional sealing machines are generally equipped with a film-pulling structure during the feeding process. This structure plays an important role in fixing the end of the material. Once the film-pulling structure successfully fixes the end of the material, the movement of the film-pulling assembly can move the material along with it, thus creating convenient conditions for subsequent operations such as precise cutting of the material.

[0003] Currently, most existing film-stretching assemblies are equipped with clamping structures. In actual operation, the film-stretching assembly needs to first move to the end of the material and then stop. At this point, the clamping structure begins to move, forming a stable clamp on the end of the material. Only after the clamping action is completed can the film-stretching assembly continue to operate, moving the clamping structure to achieve the purpose of pulling the material.

[0004] However, this existing film-pulling assembly operation has certain limitations. The assembly must move to the material end and stop, waiting for the material to be clamped before it can continue moving to pull the material. This waiting period consumes time, affecting the continuity of material processing. If the clamping action at the material end could be completed simultaneously with the continuous movement of the film-pulling assembly, unnecessary waiting time could be reduced, effectively improving the overall processing efficiency. Utility Model Content

[0005] In view of this, the present invention provides a film-pulling assembly for a sealing machine. The present invention can reset the reset component the instant the electromagnetic component is deactivated. In this way, the reset component can drive the clamping mechanism to clamp and fix the material, thereby pulling the end of the material during the movement of the film-pulling assembly, thereby indirectly improving the material processing efficiency.

[0006] To solve the above-mentioned technical problems, this utility model provides a film-pulling assembly for a sealing machine, including a bracket that can slide linearly on the sealing machine.

[0007] The clamping structure is fixed on the bracket and includes a hinged movable clamping plate. The movable clamping plate can be rotated to clamp or release the material.

[0008] The reset component is connected to the movable clamping plate and is used to drive the movable clamping plate to rotate and push the movable clamping plate to reset. During the reset process, the movable clamping plate clamps the material.

[0009] The electromagnetic component can indirectly drive the movable clamping plate to rotate through electromagnetic force. When the electromagnetic component is working, it can cause the end of the movable clamping plate to rotate towards the end away from the support plate.

[0010] The clamping structure includes a support plate horizontally mounted on a bracket. In the normal state, one end of the movable clamping plate abuts against the upper surface of the support plate to clamp and fix the material.

[0011] The reset component includes a spring mounted on a spring seat, with the other end of the spring connected to a connecting plate via the spring seat. The springs are arranged at an angle on the bracket. A movable clamping plate is fixed on the movable plate and can rotate together with the movable plate. The end of the connecting plate is connected to the movable plate, and the connecting plate can drive the movable plate to rotate.

[0012] The electromagnetic component is fixed on the side of the support plate near the connecting plate, which facilitates the electromagnetic component to drive the connecting plate to rotate. When the electromagnetic component is working, it can push the connecting plate away from the battery compartment, thereby generating a rotation state.

[0013] The connecting plate has a concave structure, meaning it has an opening that is located away from the electromagnetic component.

[0014] The reset component is provided in two sets, and the connecting plates on the two sets of reset components are fixed at both ends of the movable plate, so that the movable clamping plate can be more stable when rotating.

[0015] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0016] 1. Improved Material Processing Efficiency: Traditional film-pulling assemblies require moving to the end of the material and stopping to wait for the clamping action to complete before continuing to pull the material. This waiting period is time-consuming and affects the continuity of material processing. However, the film-pulling assembly of this invention allows the reset component to reset the moment the electromagnetic component stops working, driving the clamping mechanism to clamp and fix the material. This allows the clamping action at the end of the material to be completed during the continuous movement of the film-pulling assembly, reducing unnecessary waiting time and effectively improving the overall material processing efficiency.

[0017] 2. Stable and reliable clamping: The clamping structure features a horizontally mounted support plate on the bracket. Under normal conditions, one end of the movable clamping plate abuts against the upper surface of the support plate, providing stable clamping and fixing of the material. Simultaneously, two sets of reset components are provided, with connecting plates on both sets fixed to the ends of the movable plate. This enhances the stability of the movable clamping plate during rotation, further ensuring clamping reliability and preventing material from loosening or falling off during film stretching.

[0018] 3. Ingenious Structural Design and Working Principle: The clamping and releasing actions are achieved through the clever cooperation of electromagnetic components, a reset component, and a movable clamping plate. When the electromagnetic component is working, it indirectly drives the movable clamping plate to rotate through electromagnetic force, causing the end of the movable clamping plate to rotate away from the support plate, thus releasing the material. After the electromagnetic component stops working, the reset component drives the movable clamping plate to rotate and reset, clamping the material again. This design makes the operation of the film stretching assembly more flexible and efficient, achieving precise clamping control without the need for a complex mechanical transmission structure.

[0019] 4. The reset component is rationally designed: It includes a spring mounted on a spring seat, with a connecting plate connected to the other end of the spring via the same seat. The springs are arranged at an angle on the support. A movable clamping plate is fixed to the movable plate and can rotate with it. The end of the connecting plate is connected to the movable plate and can drive its rotation. This design allows the reset component to fully utilize its elastic potential energy, quickly resetting the movable clamping plate when the electromagnetic component stops working, ensuring timely clamping of the material and guaranteeing the timeliness and accuracy of the film stretching assembly.

[0020] 5. Optimized connecting plate structure: The connecting plate is designed with a concave structure and an opening away from the electromagnetic component. This structure provides a more reasonable force distribution space and motion trajectory when the electromagnetic component drives the connecting plate to rotate, reducing interference and resistance during the movement process, making the rotation of the connecting plate smoother, and thus ensuring the smooth operation of the entire clamping and releasing action. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a film-pulling assembly for a sealing machine according to the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the bracket of this utility model;

[0023] Figure 3 This utility model Figure 2 Schematic diagram of the structure at point A;

[0024] Figure 4 This utility model Figure 2 A schematic diagram of the structure at point B.

[0025] Explanation of reference numerals in the attached figures:

[0026] 10. Bracket;

[0027] 20. Clamping structure; 21. Support plate; 22. Movable clamping plate;

[0028] 30. Reset component; 31. Spring seat; 32. Spring; 33. Movable plate; 34. Connecting plate;

[0029] 40. Electromagnetic components. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0031] This embodiment provides a film-pulling assembly for a sealing machine, such as... Figure 1-4 As shown: It includes a support 10, which can slide linearly on the sealing machine. The support 10 is also provided with a clamping structure 20, which includes a rotatable movable clamping plate 22. The movable clamping plate 22 can clamp or release the clamped material by rotating. The support 10 is also provided with an electromagnetic component 40 and a reset component 30 corresponding to the movable clamping plate 22. The electromagnetic component 40 is used to indirectly push the movable clamping plate 22 to rotate through electromagnetic force to achieve the effect of releasing the clamping. The reset component 30 is used to directly or indirectly push the movable clamping plate 22 to reset after the movable clamping plate 22 rotates to achieve a quick clamping effect.

[0032] That is, when it is necessary to clamp the material, the electromagnetic component 40 should be used to drive the movable clamping plate 22 to rotate first, so that the movable clamping plate 22 can release the clamping of the material. Then, the support 10 is controlled to move towards the feeding point. When the support 10 is about to move to the end of the material, that is, when the material is about to move to the movable clamping plate 22, the electromagnetic component 40 is released from pushing the movable clamping plate 22. The reset component 30 can then push the movable clamping plate 22 to reset. The reset of the movable clamping plate 22 can complete the clamping of the end of the material. Then, the reset sliding of the support 10 can pull the material to move.

[0033] Specifically, the clamping mechanism includes a support plate 21 horizontally mounted on the bracket 10, such as... Figure 4 As shown: The movable clamping plate 22 is located above the support plate 21. In its normal state, the end of the movable clamping plate 22 abuts against the upper surface of the support plate 21, so that the movable clamping plate 22 and the support plate 21 can clamp the material from the upper and lower sides.

[0034] Correspondingly, the reset component 30 includes a spring 32 mounted on the bracket 10 via a spring seat 31. The other end of the spring 32 is provided with a connecting plate 34 via the spring seat 31. The connecting plate 34 has a concave structure. In the normal state, the bottom of the connecting plate 34 is in contact with the upper surface of the bracket 10, and an opening is formed on the connecting plate 34 facing the spring 32. The spring 32 is connected to the top of the opening on the connecting plate 34 via a bearing seat. A movable plate 33 is also connected to the movable clamping plate 22. The movable plate 33 is located above the support plate 21 and is parallel to the support plate 21 in the normal state. The end of the connecting plate 34 is connected to the movable plate 33. Thus, during the reset process, the spring 32 can push the connecting plate 34 to reset, and the connecting plate 34 can drive the movable clamping plate 22 to reset via the movable plate 33, thereby clamping the end of the material.

[0035] Correspondingly, the electromagnetic component 40 is disposed on the side of the connecting plate 34 on the bracket 10 away from the opening. When the electromagnetic component 40 is working, the end of the electromagnetic component 40 can generate electromagnetic waves, which will push the connecting plate 34 away. Since the spring 32 limits the connection of the connecting plate 34, the connecting plate 34 will only be pushed by the electromagnetic waves to rotate. Thus, the connecting plate 34 will indirectly drive the movable clamping plate 22 to rotate, thereby canceling the clamping of the material. When the electromagnetic component 40 stops working, the electromagnetic force disappears, and the spring 32 will push the connecting plate 34 to reset, thereby indirectly causing the movable clamping plate 22 to rotate and cancel the clamping of the material.

[0036] Preferably, both the reset component 30 and the electromagnetic component 40 are provided with two sets of movable plates 33 fixed at both ends on the bracket 10, so that the movable plates 33 can be more stable when driving the movable clamping plate 22 to rotate, thereby making the film stretching process of the material more stable.

[0037] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A film-stretching assembly for a sealing machine, characterized in that: include; The support (10) can slide linearly on the sealing machine; A clamping structure (20) is fixed on a bracket (10). The clamping structure (20) includes a hinged movable clamping plate (22). The movable clamping plate (22) can be rotated to clamp or release the material. The reset component (30) is connected to the movable clamping plate (22) and is used to drive the movable clamping plate (22) to rotate and then push the movable clamping plate (22) to reset. The electromagnetic component (40) can indirectly drive the movable clamp (22) to rotate through electromagnetic force.

2. The film-stretching assembly for a sealing machine as described in claim 1, characterized in that: The clamping structure (20) includes a support plate (21) horizontally arranged on the bracket (10). In the normal state, one end of the movable clamping plate (22) abuts against the upper surface of the support plate (21) to clamp and fix the material.

3. The film stretching assembly for a sealing machine as described in claim 1, characterized in that: The reset component (30) includes a spring (32) provided by a spring seat (31), the other end of the spring (32) is connected to a connecting plate (34) by the spring seat (31), the movable clamp (22) is fixed on the movable plate (33), and the end of the connecting plate (34) is connected to the movable plate (33).

4. The film-stretching assembly for a sealing machine as described in claim 1, characterized in that: The electromagnetic component (40) is fixed on the side of the support plate (21) near the connecting plate (34). When the electromagnetic component (40) is working, it can push the connecting plate (34) away from the electromagnetic component, thereby generating a rotation state.

5. The film-stretching assembly for a sealing machine as described in claim 4, characterized in that: The connecting plate (34) has a concave structure, that is, the connecting plate (34) has an opening located away from the electromagnetic component (40).

6. The film-stretching assembly for a sealing machine as described in claim 2, characterized in that: The reset component (30) is provided in two sets, and the connecting plates (34) on the two sets of reset components (30) are fixed at both ends of the movable plate (33).