Blister sheet edge high-frequency sealing device

By designing a high-frequency sealing device for the edge of blister packs with a sliding clamping plate and a limiting mechanism, the problem of positioning blister packs of different sizes in existing devices has been solved, and a highly efficient and stable sealing effect has been achieved.

CN224490016UActive Publication Date: 2026-07-14YANG LIBAO PACKAGING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANG LIBAO PACKAGING CO LTD
Filing Date
2025-08-07
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing sealing devices struggle to accurately position blister packs of different sizes, leading to sealing position deviations or requiring complex adjustments, which impacts production efficiency and product quality.

Method used

A high-frequency sealing device for the edge of a blister pack was designed. It uses a sliding clamping plate and a limiting mechanism, combined with a high-frequency generator, to achieve stable clamping and sealing of blister packs of different sizes. The device can be adapted to different size requirements through a detachable mold.

Benefits of technology

It enables precise positioning and efficient sealing of blister packs of different sizes, improving production efficiency and product quality stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a plastic uptake piece edge high -frequency melt seal device belongs to plastic uptake piece processing technical field, this plastic uptake piece edge high -frequency melt seal device includes the processing platform, two clamping plates are arranged on the processing platform surface, the inside fixed mounting of processing platform limits the mechanism, the limit mechanism is fixedly connected with another clamping plate, the processing platform surface fixed mounting has the pneumatic cylinder, the end of pneumatic cylinder detachably installs the mould, the pneumatic cylinder is used for driving mould to press down, the mould is used for the edge melt seal of plastic uptake piece, the processing platform surface fixed mounting has the high -frequency generator, two clamping plates respectively to the two diagonal clamping of plastic uptake piece, and one clamping plate can move on the processing platform surface to adjust the distance between two clamping plates, and it is convenient for placing the plastic uptake piece of different size, and after placing the plastic uptake piece, the plastic uptake piece is fixedly clamped, and the plastic uptake piece is accurately positioned, improves production efficiency and product quality.
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Description

Technical Field

[0001] This utility model relates to the field of blister sheet processing technology, and in particular to a high-frequency sealing device for the edge of blister sheets. Background Technology

[0002] Vacuum forming sheets are plastic sheets used in vacuum forming processes. After being heated and softened, they are molded into plastic products of a specific shape in a mold. They are mainly used in the packaging, automotive, and home appliance industries. They are lightweight, low-cost, and highly malleable, making them suitable for large-scale production.

[0003] In current production practices, existing sealing devices can only accurately position blister packs of the same size. However, in actual production environments, the sizes and specifications of blister packs are often diverse, and different customers have different requirements for the size and shape of the products. This results in the existing sealing devices being less than satisfactory when dealing with blister packs of different sizes. When a batch of large blister packs needs to be sealed, if a sealing device that can only position fixed sizes is used, it either cannot accurately fix the blister packs in the appropriate position, resulting in deviations in the sealing position and affecting the sealing effect; or even if it can be positioned with difficulty, it may require complex adjustments and modifications to the device, which not only consumes a lot of time and manpower but may also affect production efficiency and product quality stability.

[0004] Therefore, there is an urgent need to provide a high-frequency sealing device for the edge of blister packs to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a high-frequency sealing device for the edge of a blister pack.

[0006] To solve the above-mentioned technical problems, the present invention provides a high-frequency sealing device for the edge of a blister sheet, including a processing table. Two clamping plates are provided on the surface of the processing table. One clamping plate is fixedly installed on the surface of the processing table, and the other clamping plate is slidably connected inside the processing table. The two clamping plates position the blister sheet. The device also includes:

[0007] A limiting mechanism is fixedly installed inside the processing table. The limiting mechanism is fixedly connected to another clamping plate and is used to limit the movement range of the other clamping plate.

[0008] A cylinder is fixedly installed on the surface of the processing table, and a mold is detachably installed at the end of the cylinder. The cylinder is used to drive the mold to press down, and the mold is used to seal the edge of the blister sheet. A high-frequency generator is fixedly installed on the surface of the processing table.

[0009] The present invention is further configured such that: a clearance groove is provided on the surface of the processing table, a T-shaped annular groove is provided on the inner wall of the clearance groove, a baffle is fixedly installed on the surface of the processing table, and a plurality of first screw holes are provided on the surface of the baffle and the processing table, and a screw is threadedly connected to the inside of the first screw hole.

[0010] The above technical solution provides space for the movement of another clamping plate through the clearance groove. The T-shaped ring groove, together with the T-shaped block, makes the movement of the other clamping plate more stable. After the clamping plate clamps the blister sheet diagonally, the clamping plate is squeezed by the screw to achieve secondary fixation of the blister sheet.

[0011] The present invention is further configured such that: another clamping plate is slidably connected inside the relief groove, a connecting rod is fixedly connected to the lower surface of the other clamping plate, a connecting block is fixedly installed at the end of the connecting rod, a plurality of extension rods are fixedly installed on the connecting block, and a limit ring is fixedly installed at the end of the extension rod.

[0012] With the above technical solution, one diagonal of the blister sheet is placed inside a clamping plate, and another clamping plate is moved to clamp the other diagonal of the blister sheet. When clamping blister sheets of different sizes, the extension rod drives the limiting ring to move inside the sleeve, thereby enabling the clamping plate to move stably.

[0013] The present invention is further configured such that: the limiting mechanism includes a sleeve, a spring is fixedly installed inside the sleeve, the other end of the spring is fixedly connected to the surface of the limiting ring, the extension rod and the limiting ring are both slidably connected inside the sleeve, and a T-shaped block is fixedly installed on the surface of the sleeve, and the T-shaped block is slidably connected inside the T-shaped ring groove.

[0014] With the above technical solution, when clamping the blister pack, the clamping plate moves inside the relief groove. When the left limiting ring moves inside the sleeve, the spring is in a stretched state, while the right spring is in a compressed state, thereby adjusting the position of the clamping plate inside the relief groove. This is suitable for placing blister packs of different sizes. The cooperation between the T-shaped ring groove and the T-shaped block enables the clamping plate to move in the front-back and left-right directions inside the relief groove.

[0015] The present invention is further configured such that a second screw hole is provided at the end of the cylinder.

[0016] Through the above technical solution, the mold can be disassembled and assembled with the cylinder by the cooperation of the bolt and the second screw hole.

[0017] The present invention is further configured such that: a fixing block is fixedly installed on the surface of the mold, a mating groove is opened on the surface of the fixing block, the end of the cylinder is movably inserted into the mating groove, a second screw hole is opened on the surface of the fixing block, and bolts are threadedly connected to the second screw hole at the end of the cylinder and the second screw hole on the surface of the fixing block.

[0018] With the above technical solution, after the cylinder end is inserted into the docking groove, the mold can be disassembled and assembled by the cooperation of the bolt and the second screw hole. The mold can be replaced according to the different sizes of blister sheets to achieve the sealing of the edge of the blister sheet.

[0019] The present invention is further configured such that: an electric wire is fixedly connected inside the high-frequency generator, and the other end of the electric wire is fixedly connected to the inside of the mold.

[0020] Through the above technical solution, the high-frequency generator outputs a high-frequency current, which is transmitted to the mold that is in contact with the blister pack through wires. Under the action of the high-frequency electric field, the molecules at the edge of the blister pack vibrate violently, generating heat and melting.

[0021] The beneficial effects of this utility model are as follows:

[0022] This utility model is equipped with two clamping plates, which clamp the two opposite corners of the blister sheet respectively. One clamping plate can move on the surface of the processing table to adjust the distance between the two clamping plates, which is convenient for placing blister sheets of different sizes. After the blister sheet is placed, it is fixed and clamped, and the blister sheet is accurately positioned, thereby improving production efficiency and product quality. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the device of this utility model;

[0024] Figure 2 This is a cross-sectional structural diagram of the device of this utility model;

[0025] Figure 3 This is a schematic diagram of the limiting mechanism and clamping plate structure of the device of this utility model;

[0026] Figure 4 The device of this utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0027] In the diagram: 1. Machining table; 11. Clearance groove; 12. T-shaped ring groove; 13. Baffle; 14. First screw hole; 15. Screw; 2. Clamping plate; 21. Connecting rod; 22. Connecting block; 23. Extension rod; 24. Limiting ring; 3. Limiting mechanism; 31. Sleeve; 32. Spring; 33. T-shaped block; 4. Cylinder; 41. Second screw hole; 5. Mold; 51. Fixing block; 52. Connecting groove; 53. Bolt; 6. High-frequency generator; 61. Wire. Detailed Implementation

[0028] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0029] Please see Figures 1-4 This application provides a high-frequency sealing device for the edge of a blister pack, including a processing table 1. Two clamping plates 2 are provided on the surface of the processing table 1. One clamping plate 2 is fixedly installed on the surface of the processing table 1, and the other clamping plate 2 is slidably connected inside the processing table 1. The two clamping plates 2 position the blister pack.

[0030] like Figure 2 As shown, a clearance groove 11 is provided on the surface of the processing table 1, and a T-shaped annular groove 12 is provided on the inner wall of the clearance groove 11. A baffle 13 is fixedly installed on the surface of the processing table 1. Both the baffle 13 and the surface of the processing table 1 are provided with multiple first screw holes 14, and a screw rod 15 is threaded inside the first screw hole 14.

[0031] In this embodiment: the clearance groove 11 provides space for the movement of the other clamping plate 2, the T-shaped annular groove 12 and the T-shaped block 33 make the movement of the other clamping plate 2 more stable, after the clamping plate 2 clamps the blister sheet diagonally, the screw 15 squeezes the clamping plate 2 to achieve secondary fixation of the blister sheet.

[0032] like Figure 4 As shown, another clamping plate 2 is slidably connected inside the relief groove 11. A connecting rod 21 is fixedly connected to the lower surface of the other clamping plate 2. A connecting block 22 is fixedly installed at the end of the connecting rod 21. Multiple extension rods 23 are fixedly installed on the connecting block 22. A limit ring 24 is fixedly installed at the end of the extension rod 23.

[0033] In this embodiment: one diagonal of the blister sheet is placed inside a clamping plate 2, and another clamping plate 2 is moved to clamp the other diagonal of the blister sheet. When clamping blister sheets of different sizes, the extension rod 23 drives the limiting ring 24 to move inside the sleeve 31, thereby enabling the clamping plate 2 to move stably.

[0034] A limiting mechanism 3 is fixedly installed inside the processing table 1. The limiting mechanism 3 is fixedly connected to another clamping plate 2 and is used to limit the movement range of the other clamping plate 2.

[0035] like Figure 3 As shown, the limiting mechanism 3 includes a sleeve 31, a spring 32 is fixedly installed inside the sleeve 31, the other end of the spring 32 is fixedly connected to the surface of the limiting ring 24, the extension rod 23 and the limiting ring 24 are both slidably connected inside the sleeve 31, and a T-shaped block 33 is fixedly installed on the surface of the sleeve 31, and the T-shaped block 33 is slidably connected inside the T-shaped ring groove 12.

[0036] In this embodiment: when clamping the blister pack, the clamping plate 2 moves inside the relief groove 11. When the left limiting ring 24 moves inside the sleeve 31, the spring 32 is in a stretched state, while the right spring 32 is in a compressed state, thereby adjusting the position of the clamping plate 2 inside the relief groove 11. This is suitable for placing blister packs of different sizes. The cooperation between the T-shaped ring groove 12 and the T-shaped block 33 enables the clamping plate 2 to move in the front-back and left-right directions inside the relief groove 11.

[0037] A cylinder 4 is fixedly installed on the surface of the processing table 1. A mold 5 is detachably installed at the end of the cylinder 4. The cylinder 4 is used to drive the mold 5 to press down. The mold 5 is used to seal the edge of the blister sheet. A high-frequency generator 6 is fixedly installed on the surface of the processing table 1.

[0038] like Figure 2 As shown, a second screw hole 41 is provided at the end of the cylinder 4.

[0039] In this embodiment: the mold 5 can be disassembled and assembled with the cylinder 4 by the cooperation of the bolt 53 and the second screw hole 41.

[0040] like Figure 2 As shown, a fixing block 51 is fixedly installed on the surface of the mold 5. A mating groove 52 is opened on the surface of the fixing block 51. The end of the cylinder 4 is movably inserted into the mating groove 52. A second screw hole 41 is opened on the surface of the fixing block 51. Bolts 53 are threadedly connected to the second screw hole 41 at the end of the cylinder 4 and the second screw hole 41 on the surface of the fixing block 51.

[0041] In this embodiment: after the end of the cylinder 4 is inserted into the docking groove 52, the mold 5 can be disassembled and assembled by the cooperation of the bolt 53 and the second screw hole 41. The mold 5 can be replaced according to the different sizes of blister sheets to achieve the sealing of the edge of the blister sheet.

[0042] like Figure 2 As shown, a wire 61 is fixedly connected inside the high-frequency generator 6, and the other end of the wire 61 is fixedly connected inside the mold 5.

[0043] In this embodiment: the high-frequency generator 6 outputs a high-frequency current, which is transmitted to the mold 5 that is in contact with the blister sheet through the wire 61. Under the action of the high-frequency electric field, the molecules at the edge of the blister sheet vibrate violently, generating heat and melting.

[0044] In use, the blister pack is first placed on the surface of the processing table 1, with one diagonal of the blister pack placed inside a clamping plate 2. Another clamping plate 2 is moved to clamp the other diagonal of the blister pack. After clamping, the two screws 15 are turned to press the surface of the clamping plate 2, thereby achieving secondary fixation of the blister pack. After the blister pack is fixed, the cylinder 4 is started, and the high-frequency generator 6 outputs a high-frequency current. The energy is transferred to the mold 5 in contact with the blister pack through the wire 61. The mold 5 moves down to perform a melting and sealing operation on the edge of the blister pack.

[0045] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-frequency sealing device for the edge of a blister pack, comprising a processing table (1), characterized in that, The processing table (1) is provided with two clamping plates (2) on its surface. One clamping plate (2) is fixedly installed on the surface of the processing table (1), and the other clamping plate (2) is slidably connected inside the processing table (1). The two clamping plates (2) position the blister sheet. The processing table (1) is fixedly installed with a limiting mechanism (3), which is fixedly connected to another clamping plate (2) to limit the movement range of the other clamping plate (2); A cylinder (4) is fixedly installed on the surface of the processing table (1). A mold (5) is detachably installed at the end of the cylinder (4). The cylinder (4) is used to drive the mold (5) to press down. The mold (5) is used to seal the edge of the blister sheet. A high-frequency generator (6) is fixedly installed on the surface of the processing table (1).

2. The high-frequency sealing device for the edge of a blister pack according to claim 1, characterized in that: The processing table (1) has a relief groove (11) on its surface, and a T-shaped ring groove (12) is provided on the inner wall of the relief groove (11). A baffle (13) is fixedly installed on the surface of the processing table (1). Both the baffle (13) and the surface of the processing table (1) have multiple first screw holes (14). A screw rod (15) is threaded inside the first screw hole (14).

3. The high-frequency sealing device for the edge of a blister pack according to claim 2, characterized in that: Another clamping plate (2) is slidably connected inside the relief groove (11). A connecting rod (21) is fixedly connected to the lower surface of the other clamping plate (2). A connecting block (22) is fixedly installed at the end of the connecting rod (21). A plurality of extension rods (23) are fixedly installed on the connecting block (22). A limit ring (24) is fixedly installed at the end of the extension rod (23).

4. The high-frequency sealing device for the edge of a blister pack according to claim 3, characterized in that: The limiting mechanism (3) includes a sleeve (31), a spring (32) is fixedly installed inside the sleeve (31), the other end of the spring (32) is fixedly connected to the surface of the limiting ring (24), the extension rod (23) and the limiting ring (24) are both slidably connected inside the sleeve (31), and a T-shaped block (33) is fixedly installed on the surface of the sleeve (31), the T-shaped block (33) is slidably connected inside the T-shaped ring groove (12).

5. The high-frequency sealing device for the edge of a blister pack according to claim 1, characterized in that: The cylinder (4) has a second screw hole (41) at its end.

6. The high-frequency sealing device for the edge of a blister pack according to claim 5, characterized in that: A fixing block (51) is fixedly installed on the surface of the mold (5). A docking groove (52) is opened on the surface of the fixing block (51). The end of the cylinder (4) is movably inserted into the docking groove (52). A second screw hole (41) is opened on the surface of the fixing block (51). Bolts (53) are threadedly connected to the second screw hole (41) at the end of the cylinder (4) and the second screw hole (41) on the surface of the fixing block (51).

7. The high-frequency sealing device for the edge of a blister pack according to claim 6, characterized in that: The high-frequency generator (6) is internally fixedly connected to a wire (61), and the other end of the wire (61) is fixedly connected to the inside of the mold (5).