A plastic vacuum forming machine clamp

CN224810077UActive Publication Date: 2026-09-29WUJIANG JINCHUANG VISCOSE PROD CO LTD
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Patent Information

Application Number
CN202522261831.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-27
Publication Date
2026-09-29
Estimated Expiration
2035-10-27

AI Technical Summary

Technical Problem

[0004]针对上述现有技术,本实用新型要解决的技术问题是现有的压框在固定工件时,由于其底部压紧条主要为刚性材质,在压紧工件时,若工件表面为凹凸不平结构,其将难以把工件边缘压紧密封,进而将会影响加工工件的效果的问题

Benefits of technology

1、使用时,压框底面与工件的顶部相抵后,启动气泵,使充气板充气膨胀,进而使得充气板的底部与工件的顶部紧密贴合,同时,充气板能够对工件表面凹槽处进行自动填补,将其封堵,从而能够提高压框与工件之间的密封性,当充气板因损坏而漏气时,可启动电动推杆,使其伸缩端推动橡胶条下移,直至使其底面与工件表面相抵并对工件施加一定的压力,从而对压框和工件之间进行封堵,提高其密封性,本申请在使用时,其能够将凹凸不平的工件压紧密封,适用于多种表面结构不同的工件使用,适用范围较广,同时,还能够在密封机构损坏时及时进行密封补救,提高压框与工件之间的密封性。

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Abstract

The utility model relates to a kind of clamp for blister machine in blister machine clamp technical field, including pressure frame;When using, the top of workpiece is abutted after the bottom surface of pressure frame, start air pump, make inflatable plate inflation, and then make the bottom of inflatable plate and the top of workpiece closely adhere to, simultaneously, inflatable plate can be automatically filled in the recess of workpiece surface, it is blocked, to improve the sealing between pressure frame and workpiece, when inflatable plate leaks due to damage, electric push rod can be started, make its telescopic end push rubber strip to move down, until its bottom surface and workpiece surface abut and exert certain pressure on workpiece, to block between pressure frame and workpiece, improve its sealing, when using, it can compress uneven workpiece tightly and seal, applicable to a variety of surface structure different workpiece use, applicable scope is wider, simultaneously, sealing remediation in time can be carried out when sealing mechanism is damaged, improve the sealing between pressure frame and workpiece.
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Description

Technical Field

[0001] This utility model relates to a clamp for a blister packaging machine, and more particularly to a clamp for a blister packaging machine applied in the field of blister packaging machine clamps. Background Technology

[0002] A vacuum forming machine (also known as a thermoforming machine) is an industrial device that uses the principle of vacuum adsorption to shape heated and softened plastic sheets into specific products. Its core function is to process thermoplastic plastic rolls such as PVC, PE, PP, and PET into products such as packaging boxes, trays, and shells. It is widely used in the food, pharmaceutical, automotive, and electronics manufacturing industries. The clamping frame is a fixture on the vacuum forming machine that is used to press and fix the workpiece to prevent it from moving during processing, thus ensuring smooth processing of the workpiece.

[0003] When fixing workpieces, the existing clamping frame has a rigid bottom clamping strip. If the workpiece surface is uneven, it will be difficult to clamp and seal the edges of the workpiece, which will affect the processing effect. Utility Model Content

[0004] In view of the above-mentioned prior art, the technical problem to be solved by this utility model is that when the existing pressure frame is used to fix the workpiece, since its bottom pressure strip is mainly made of rigid material, it will be difficult to press and seal the edge of the workpiece when the workpiece surface is uneven, which will affect the effect of processing the workpiece.

[0005] To solve the above problems, this utility model provides a clamp for a vacuum forming machine, including a pressure frame, wherein a rectangular groove is provided at the bottom of the pressure frame, and an air-filled plate is provided inside the rectangular groove; An air pump is fixedly connected to the side of the pressure frame, and the air outlet of the air pump is connected to the inflation plate. The bottom of the pressure frame is provided with a storage groove, and an electric push rod is fixedly connected to the inner wall of the storage groove. A rubber strip is fixedly connected to the bottom end of the electric push rod.

[0006] As a further improvement of this application, the bottom of the rubber strip and the inflatable plate are flush with the bottom of the pressure frame, and there is a gap between the bottom of the air pump and the bottom of the pressure frame.

[0007] As another improvement of this application, several mounting slots are provided around the pressure frame, and an alarm light is movably inserted into the mounting slot. A gas sensor and an alarm controller are provided inside the pressure frame, and the gas sensor, alarm controller and alarm light are electrically connected to each other through wires.

[0008] As a further improvement to this application, the side of the alarm light is fixedly connected to a mounting block, and a limit groove is provided on a pair of sides of the mounting block. Several insertion grooves are provided around the pressure frame, and a telescopic groove is provided on the inner wall of the insertion groove. A slider is movably inserted into the telescopic groove.

[0009] As a further improvement to this application, in the initial state, the slider is movably inserted into the limiting groove, and the insertion groove communicates with the mounting groove.

[0010] As a further improvement to this application, both the mounting block and the slider are fixedly connected to a circular block on their sides, and the surface of the circular block is engraved with anti-slip texture.

[0011] As a further improvement to this application, a spring is fixedly connected to the inner wall of the telescopic groove, one end of the spring being fixedly connected to the slider, and the spring being in a contracted state in the initial state.

[0012] This application has the following beneficial effects when used: 1. In use, after the bottom surface of the pressure frame abuts against the top of the workpiece, the air pump is started to inflate the air plate, causing the bottom of the air plate to fit tightly against the top of the workpiece. At the same time, the air plate can automatically fill and seal the grooves on the workpiece surface, thereby improving the sealing performance between the pressure frame and the workpiece. If the air plate leaks due to damage, the electric push rod can be activated to push the rubber strip down until its extension end abuts against the workpiece surface and applies a certain pressure to the workpiece, thereby sealing the gap between the pressure frame and the workpiece and improving its sealing performance. In use, this application can press and seal uneven workpieces, and is suitable for workpieces with different surface structures, with a wide range of applications. In addition, it can also promptly repair the seal when the sealing mechanism is damaged, improving the sealing performance between the pressure frame and the workpiece.

[0013] 2. When the gas sensor detects a leak in the inflation plate, the alarm light is activated, illuminating the corresponding light at the leak location to provide a visual signal to alert personnel. After processing, only this area on the inflation plate needs to be inspected. When the alarm light is damaged and needs repair or replacement, simply move the slider manually to release its limiting effect on the mounting block and alarm light. Finally, manually remove the alarm light and mounting block from the mounting slot for repair or replacement. In use, this application not only provides a warning signal to promptly alert personnel to inflation plate damage but also facilitates the disassembly and assembly of the warning mechanism, thereby improving the convenience of personnel repairing and replacing the warning mechanism. Attached Figure Description

[0014] Figure 1 This is an overall schematic diagram of the present application; Figure 2This is a partially enlarged schematic diagram of section A in this application; Figure 3 This is a schematic diagram of the inflatable plate of this application; Figure 4 This is a schematic diagram of the rubber strip in this application; Figure 5 This is a schematic diagram of the alarm light in this application; Figure 6 This is a partial enlarged schematic diagram of section B in this application.

[0015] Explanation of the labels in the diagram: 1. Pressure frame; 2. Inflatable plate; 3. Air pump; 4. Storage slot; 5. Electric push rod; 6. Rubber strip; 7. Mounting slot; 8. Alarm light; 9. Mounting block; 10. Limiting slot; 11. Insertion slot; 12. Telescopic slot; 13. Slider; 14. Round block; 15. Spring. Detailed Implementation

[0016] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0017] First implementation method: Figure 1-5 A clamp for a vacuum forming machine is shown, including a pressure frame 1, the bottom of which has a rectangular groove, and an inflatable plate 2 is disposed inside the rectangular groove; An air pump 3 is fixedly connected to the side of the pressure frame 1, and the air outlet of the air pump 3 is connected to the inflation plate 2. The bottom of the pressure frame 1 is provided with a storage groove 4, and an electric push rod 5 is fixedly connected to the inner wall of the storage groove 4. A rubber strip 6 is fixedly connected to the bottom end of the electric push rod 5.

[0018] The bottom of the rubber strip 6 and the inflatable plate 2 are flush with the bottom of the pressure frame 1 so that the bottom of the pressure frame 1 can contact the workpiece. There is a gap between the bottom of the air pump 3 and the bottom of the pressure frame 1 to prevent the air pump 3 from touching the workpiece when the pressure frame 1 is lowered to press the workpiece.

[0019] This solution allows for the following operation: When using the pressure frame 1, lower it so that its bottom surface is against the top of the workpiece. Then, start the air pump 3 to inflate the air plate 2 with its outlet. As the gas gradually enters the air plate 2, the air plate 2 will expand and move towards the bottom of the workpiece, thus ensuring that the bottom of the air plate 2 is tightly fitted to the top of the workpiece. At the same time, the air plate 2 can automatically fill and seal the grooves on the surface of the workpiece, thereby improving the sealing between the pressure frame 1 and the workpiece. When the inflatable plate 2 leaks air due to damage, the electric push rod 5 can be activated to push the rubber strip 6 downwards until its bottom surface abuts against the surface of the workpiece and applies a certain pressure to the workpiece, thereby sealing the space between the pressure frame 1 and the workpiece and improving its sealing performance.

[0020] In summary, when used, this application can press and seal uneven workpieces, making it suitable for various workpieces with different surface structures and having a wide range of applications. In addition, it can also promptly repair the seal when the sealing mechanism is damaged, improving the sealing performance between the pressure frame 1 and the workpiece.

[0021] Second implementation method: This embodiment adds the following structure based on the first embodiment, while the rest remains the same as the first embodiment, as detailed below: Figure 5-6 The pressure frame 1 is shown to have several mounting slots 7 around its perimeter. An alarm light 8 is movably inserted into the mounting slot 7. A gas sensor and an alarm controller are installed inside the pressure frame 1. The gas sensor, alarm controller, and alarm light 8 are all electrically connected by wires.

[0022] The alarm light 8 is fixedly connected to a mounting block 9 on its side. Each pair of sides of the mounting block 9 has a limit groove 10. The pressure frame 1 has several insertion grooves 11 around its perimeter. The inner wall of the insertion groove 11 has a telescopic groove 12. A slider 13 is movably inserted into the telescopic groove 12.

[0023] In the initial state, the slider 13 is movably inserted into the limiting groove 10, and the insertion groove 11 communicates with the mounting groove 7.

[0024] Both the mounting block 9 and the slider 13 are fixedly connected to a circular block 14 on their sides, and the surface of the circular block 14 is engraved with anti-slip texture.

[0025] A spring 15 is fixedly connected to the inner wall of the telescopic groove 12. One end of the spring 15 is fixedly connected to the slider 13. In the initial state, the spring 15 is in a contracted state.

[0026] This solution can be implemented so that when the gas sensor detects that the inflation plate 2 is damaged and leaking, the controller will activate the alarm light 8, which will light up the alarm light 8 corresponding to the location of the leak, so as to send a visual signal to remind the personnel that the inflation plate 2 is damaged and leaking. After the processing is completed, only this part of the inflation plate 2 needs to be inspected. When the alarm light 8 is damaged and needs to be repaired or replaced, simply move the slider 13 manually so that one side moves into the telescopic groove 12 and continues to compress the spring 15. At the same time, the other side of the slider 13 will move outward into the limiting groove 10 until the slider 13 separates from the limiting groove 10. This releases the limiting effect of the slider 13 on the mounting block 9 and the alarm light 8. Finally, manually remove the alarm light 8 and the mounting block 9 from the mounting groove 7 for repair or replacement.

[0027] In summary, when in use, this application can not only issue warning signals to promptly remind personnel that the inflatable plate 2 is damaged, but also facilitate the disassembly and assembly of the warning mechanism, thereby improving the convenience of personnel maintenance and replacement of the warning mechanism.

[0028] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0029] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this application.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A clamp for a vacuum forming machine, comprising a pressure frame (1), characterized in that: The bottom of the pressure frame (1) is provided with a rectangular groove, and an air-filled plate (2) is provided inside the rectangular groove. An air pump (3) is fixedly connected to the side of the pressure frame (1), and the air outlet of the air pump (3) is connected to the air inflator (2). The bottom of the pressure frame (1) is provided with a storage groove (4), and an electric push rod (5) is fixedly connected to the inner wall of the storage groove (4). A rubber strip (6) is fixedly connected to the bottom end of the electric push rod (5).

2. The clamp for a vacuum forming machine according to claim 1, characterized in that: The bottom of the rubber strip (6) and the inflatable plate (2) are flush with the bottom of the pressure frame (1), and there is a gap between the bottom of the air pump (3) and the bottom of the pressure frame (1).

3. The clamp for a vacuum forming machine according to claim 1, characterized in that: The pressure frame (1) has several mounting slots (7) around its perimeter. An alarm light (8) is inserted into the mounting slot (7). A gas sensor and an alarm controller are installed inside the pressure frame (1). The gas sensor, the alarm controller, and the alarm light (8) are all electrically connected by wires.

4. The clamp for a vacuum forming machine according to claim 3, characterized in that: The alarm light (8) is fixedly connected to a mounting block (9) on its side. A limit groove (10) is opened on a pair of sides of the mounting block (9). Several insertion grooves (11) are opened around the pressure frame (1). A telescopic groove (12) is opened on the inner wall of the insertion groove (11). A slider (13) is movably inserted into the telescopic groove (12).

5. A clamp for a vacuum forming machine according to claim 4, characterized in that: In the initial state, the slider (13) is movably inserted into the limiting groove (10), and the insertion groove (11) is connected to the mounting groove (7).

6. A clamp for a vacuum forming machine according to claim 4, characterized in that: Both the mounting block (9) and the slider (13) are fixedly connected to a round block (14) on their sides, and the surface of the round block (14) is engraved with anti-slip texture.

7. A clamp for a vacuum forming machine according to claim 4, characterized in that: A spring (15) is fixedly connected to the inner wall of the telescopic groove (12). One end of the spring (15) is fixedly connected to the slider (13). In the initial state, the spring (15) is in a contracted state.