Blister box vacuum forming dust-free sealing mechanism

Abstract

This application relates to the field of vacuum forming and sealing technology for blister packs, and in particular to a dust-free sealing mechanism for vacuum forming of blister packs, comprising a sealing assembly and an adjusting assembly. The sealing assembly includes a sealing cavity, an elastic clamping member, and an airtight cover. The adjusting assembly includes a sliding guide and a positioning member. The elastic clamping member ensures a tight seal through uniform pressure, the suction holes achieve vacuum adsorption, and the sliding guide and positioning member cooperate to adapt to blister packs of different sizes. An auxiliary cleaning component removes dust, and heat dissipation holes, combined with a filter, dissipate heat and prevent dust from entering. This application, through the designed sealing cavity and elastic clamping member, ensures a tight fit between the sealing cavity and the blister pack by applying uniform pressure to the blister pack inside the sealing cavity through the elastic clamping member; the airtight cover at the top of the sealing cavity further enhances the sealing performance through a sealing ring, while the design of the suction holes enables effective adsorption of the blister pack in a vacuum environment.

Description

Technical Field

[0001] This utility model belongs to the field of packaging equipment technology, specifically a vacuum forming and dust-free sealing mechanism for blister boxes. Background Technology

[0002] In the vacuum forming process of blister packs, dust-free sealing performance is one of the key factors in ensuring product quality. Currently, there are some devices on the market that achieve sealing through mechanical structure design, but these devices are often not ideal in terms of controlling the cleanliness of the sealing environment in practical applications, and their structures are relatively complex, making it difficult to meet the production requirements of high-precision products. In addition, these devices often require additional maintenance and debugging during operation, increasing production costs and time consumption.

[0003] Therefore, we have made improvements to this by proposing a vacuum forming dust-free sealing mechanism for blister boxes. Utility Model Content

[0004] The purpose of this invention is to solve the problems of unsatisfactory cleanliness control, complex structure, cumbersome maintenance, and high operating costs of existing vacuum forming and sealing mechanisms for blister boxes in practical applications.

[0005] To achieve the above-mentioned objectives and improve the aforementioned problems, this utility model provides a dust-free sealing mechanism for vacuum forming of blister packs, including a sealing component and an adjusting component. The sealing component has a sealing cavity at its center, and an elastic clamping member is installed inside the sealing cavity. The elastic clamping member is threadedly connected to the inner wall of the sealing cavity. The adjusting component is located outside the sealing component and includes a sliding guide and a positioning member. The sliding guide is fixedly connected to the outer wall of the sealing component, and the positioning member is adjusted in position by the sliding guide and works in conjunction with the sealing component to adapt to blister packs of different sizes.

[0006] The top of the sealed cavity is provided with an airtight cover plate, which is connected to the sealed cavity by a snap-fit. The bottom of the airtight cover plate is provided with a sealing ring, which is embedded in the groove of the airtight cover plate and fixed by adhesive. The sealing ring is made of silicone. The bottom of the sealed cavity is provided with adsorption holes, which are evenly distributed on the bottom surface of the sealed cavity for adsorbing blister boxes in a vacuum environment.

[0007] As a preferred technical solution of this application, the elastic clamping component includes a clamping column and a compression spring. The top of the clamping column is provided with a threaded section, which is threadedly connected to the inner wall of the sealing cavity. The compression spring is sleeved on the outside of the clamping column, with one end of the compression spring contacting the bottom of the clamping column and the other end contacting the inner bottom surface of the sealing cavity. The bottom of the clamping column is provided with a flexible gasket, which is fixedly connected to the clamping column by screws. The flexible gasket is made of polyurethane.

[0008] As a preferred technical solution of this application, the sliding guide includes a guide rail and a slider. The guide rail is fixedly installed on the outer wall of the sealing assembly, and the slider is slidably connected to the guide rail. A locking bolt is provided at the top of the slider, and the locking bolt passes through the slider and contacts the guide rail to fix the position of the slider. The positioning component is installed on the outside of the slider, and an adjusting screw is provided at the bottom of the positioning component. The adjusting screw is threadedly connected to the slider, and a rubber pad is provided at the bottom of the adjusting screw. The rubber pad is fixedly connected to the adjusting screw by a screw.

[0009] As a preferred technical solution of this application, the sealing assembly further includes an auxiliary cleaning component, which is disposed on the outer wall of the sealing cavity. The auxiliary cleaning component includes bristles and a fixing seat. The fixing seat is fixedly connected to the outer wall of the sealing cavity by screws. The bristles are embedded in the groove of the fixing seat and fixed by adhesive. The bristles are made of nylon. The auxiliary cleaning component is used to remove dust and impurities from the surface of the sealing cavity.

[0010] As a preferred technical solution of this application, the outer wall of the sealed cavity is provided with a plurality of heat dissipation holes, which are evenly distributed on the side of the sealed cavity. Each heat dissipation hole is provided with a filter screen inside, which is fixedly connected to the heat dissipation hole by a buckle. The filter screen is made of stainless steel. The heat dissipation holes are used to dissipate heat inside the sealed cavity and prevent external dust from entering the sealed cavity.

[0011] As a preferred technical solution of this application, the top of the airtight cover is provided with a handle, which is fixedly connected to the airtight cover by screws, and the handle is made of aluminum alloy; the surface of the handle is provided with anti-slip texture, which is formed by machining.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In the scheme of this application: Through the design of the sealed cavity and elastic clamping components, the inside of the sealed cavity applies uniform pressure to the blister pack via the elastic clamping components, thereby ensuring a tight fit between the sealed cavity and the blister pack. The airtight cover plate on top of the sealed cavity further enhances the sealing performance through a sealing ring, while the design of the suction holes allows for effective suction of the blister pack in a vacuum environment, preventing seal failure due to blister pack movement. The combined use of sliding guides and positioning components allows for flexible adjustment according to the size of the blister pack, improving the applicability of the equipment. The design of the auxiliary cleaning components can promptly remove dust and impurities from the surface of the sealed cavity, maintaining the cleanliness of the sealed environment. The combination of heat dissipation holes and a filter screen not only effectively dissipates heat from inside the sealed cavity but also prevents external dust from entering, extending the service life of the equipment.

[0013] This invention addresses the shortcomings of existing vacuum forming and sealing mechanisms for blister boxes in terms of cleanliness control, structural complexity, and maintenance costs through the aforementioned structural design. It also improves the stability and production efficiency of the equipment, meeting the production needs of high-precision products. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a structural diagram of the auxiliary cleaning component.

[0016] Figure 3 This is a structural schematic diagram of the airtight cover plate and the sliding guide.

[0017] Figure 4 This is a schematic diagram of the internal structure of the sealed cavity.

[0018] The attached figures are labeled as follows: 1. Sealing assembly; 2. Adjusting assembly; 3. Sealing cavity; 4. Elastic clamping component; 5. Sliding guide component; 6. Positioning component; 7. Airtight cover plate; 8. Sealing ring; 9. Adsorption hole; 10. Clamping column; 11. Compression spring; 12. Flexible gasket; 13. Guide rail; 14. Slider; 15. Locking bolt; 16. Adjusting screw; 17. Rubber pad; 18. Auxiliary cleaning component; 19. Brush bristles; 20. Fixing base; 21. Heat dissipation hole; 22. Filter screen; 23. Handle. Detailed Implementation

[0019] This utility model provides a dust-free sealing mechanism for vacuum forming of blister boxes, the specific implementation of which is as follows (in conjunction with the attached diagram). Figures 1 to 4A detailed description is provided. The cleanroom sealing mechanism includes a sealing assembly 1 and an adjusting assembly 2. The sealing assembly 1 has a sealing cavity 3 at its center, and an elastic clamping member 4 is installed inside the sealing cavity 3. The elastic clamping member 4 is threadedly connected to the sealing cavity 3. The adjusting assembly 2 is located outside the sealing assembly 1 and includes a sliding guide 5 and a positioning member 6. The sliding guide 5 is fixedly connected to the outer wall of the sealing assembly 1, and the positioning member 6 is adjusted in position through the sliding guide 5 and works in conjunction with the sealing assembly 1.

[0020] The sealing assembly 1 consists of a sealing cavity 3, an elastic clamping component 4, and an auxiliary cleaning component 18. The sealing cavity 3 is the core component of the entire device, with an airtight cover 7 on its top. The airtight cover 7 is connected to the sealing cavity 3 via a snap-fit ​​mechanism, ensuring quick disassembly and installation in practical applications. A sealing ring 8 is embedded in the bottom of the airtight cover 7, and the sealing ring 8 is fixed in a groove within the airtight cover 7 by adhesive. Silicone is used to ensure good sealing performance. Adsorption holes 9 are evenly distributed at the bottom of the sealing cavity 3. These holes are used to adsorb the blister pack in a vacuum environment, preventing displacement of the blister pack during processing and thus preventing seal failure. The design of the adsorption holes 9 optimizes adsorption capacity in a vacuum environment while reducing damage to the surface of the blister pack.

[0021] The elastic clamping component 4 includes a clamping column 10 and a compression spring 11. The top of the clamping column 10 has a threaded section, which is threadedly connected to the inner wall of the sealing cavity 3, facilitating adjustment of the position of the clamping column 10 according to actual needs. The compression spring 11 is sleeved on the outside of the clamping column 10, with one end contacting the bottom of the clamping column 10 and the other end contacting the inner bottom surface of the sealing cavity 3, forming an elastic support system. The bottom of the clamping column 10 has a flexible gasket 12, which is fixedly connected to the clamping column 10 by screws. The flexible gasket 12 is made of polyurethane, which has good wear resistance and flexibility, and can protect the surface of the blister box from scratches or damage when pressure is applied.

[0022] The structure of adjustment component 2 is as follows Figure 3 As shown, the sliding guide 5 includes a guide rail 13 and a slider 14. The guide rail 13 is fixedly installed on the outer wall of the sealing assembly 1 by screws. The slider 14 is slidably connected to the guide rail 13. A locking bolt 15 is provided on the top of the slider 14. The locking bolt 15 passes through the slider 14 and contacts the guide rail 13 to fix the position of the slider 14. The positioning component 6 is installed on the outside of the slider 14. An adjusting screw 16 is provided at the bottom of the positioning component 6. The adjusting screw 16 is threadedly connected to the slider 14. A rubber pad 17 is provided at the bottom of the adjusting screw 16. The rubber pad 17 is fixedly connected to the adjusting screw 16 by screws to avoid damage to the surface of the blister box during the positioning process.

[0023] An auxiliary cleaning component 18 is located on the outer wall of the sealed cavity 3. The auxiliary cleaning component 18 includes brush bristles 19 and a fixing base 20. The fixing base 20 is fixedly connected to the outer wall of the sealed cavity 3 by screws. The brush bristles 19 are embedded in the groove of the fixing base 20 and fixed by adhesive. The brush bristles 19 are made of nylon, which has high wear resistance and can effectively remove dust and impurities from the surface of the sealed cavity 3. The auxiliary cleaning component 18 enables the equipment to clean contaminants from the surface of the sealed cavity 3 in a timely manner during operation, thereby maintaining the cleanliness of the sealed environment.

[0024] Multiple heat dissipation holes 21 are provided on the outer wall of the sealed cavity 3, and the heat dissipation holes 21 are evenly distributed on the side of the sealed cavity 3. Each heat dissipation hole 21 has a filter screen 22 inside, which is fixedly connected to the heat dissipation hole 21 by a snap-fit. The filter screen 22 is made of stainless steel, which has high corrosion resistance and strength. The design of the heat dissipation holes 21 can effectively dissipate the heat inside the sealed cavity 3, while preventing external dust from entering the sealed cavity 3, thereby extending the service life of the equipment.

[0025] The top of the airtight cover 7 is equipped with a handle 23, which is fixedly connected to the airtight cover 7 by screws. The handle 23 is made of aluminum alloy, which has high strength and is lightweight. The surface of the handle 23 is provided with anti-slip texture, which is formed by machining, so that the operator can easily grip it when disassembling or installing the airtight cover 7.

[0026] The connections and positions of the aforementioned components are clearly defined and closely coordinated. The sealing cavity 3, as the core component, applies uniform pressure to the blister pack via the elastic clamping element 4, ensuring a tight fit between the sealing cavity 3 and the blister pack. The airtight cover 7 further enhances the sealing performance through the sealing ring 8, while the design of the suction hole 9 effectively adsorbs the blister pack in a vacuum environment, preventing seal failure due to blister pack movement. The combined use of the sliding guide 5 and the positioning element 6 allows for flexible adjustment according to the size of the blister pack, improving the equipment's applicability. The auxiliary cleaning element 18 effectively removes dust and impurities from the surface of the sealing cavity 3, maintaining the cleanliness of the sealed environment. The combination of the heat dissipation hole 21 and the filter screen 22 not only effectively dissipates heat from inside the sealing cavity 3 but also prevents external dust from entering, extending the equipment's service life.

[0027] In actual operation, the blister pack is first placed at the bottom of the sealed cavity 3. It is then fixed in a vacuum environment through the suction holes 9. Next, the positions of the slider 14 on the sliding guide 5 and the positioning element 6 are adjusted so that the rubber pad 17 of the positioning element 6 contacts the edge of the blister pack, completing its positioning. Then, by rotating the clamping column 10, the compression spring 11 moves the flexible pad 12 downwards, applying appropriate pressure to ensure a tight fit between the blister pack and the sealed cavity 3. Finally, the airtight cover 7 is closed, achieving a final seal through the sealing ring 8. During this process, the auxiliary cleaning element 18 automatically removes dust and impurities from the surface of the sealed cavity 3, ensuring the cleanliness of the sealed environment.

[0028] To enable those skilled in the art to fully understand and implement this utility model, the specific implementation principle of this utility model is further explained below in conjunction with a specific application scenario.

[0029] In practical applications, the operator first places the blister pack to be processed at the bottom of the sealed cavity 3. The suction holes 9, connected to a vacuum pump, create a negative pressure environment, firmly adhering the blister pack to the bottom surface of the sealed cavity 3. This design utilizes the principle of air pressure difference to ensure the blister pack does not shift during processing. Furthermore, the optimized distribution of the suction holes 9 minimizes damage to the blister pack surface while maintaining suction force. After adsorption, the slider 14 on the sliding guide 5 slides along the guide rail 13, causing the positioning component 6 to approach the edge of the blister pack. The adjusting screw 16, by rotating, adjusts the position, ensuring the rubber pad 17 is in close contact with the edge of the blister pack, thus achieving precise positioning. This process, through the coordination of mechanical structures, achieves flexible adaptation to blister packs of different sizes, significantly improving the equipment's versatility.

[0030] Subsequently, the operator rotates the clamping column 10, adjusting its height by using the threaded connection between its top threaded section and the inner wall of the sealing cavity 3. The compression spring 11 is further compressed as the clamping column 10 moves downwards, and its elastic force is evenly transmitted to the surface of the blister pack through the flexible gasket 12. The flexible gasket 12 is made of polyurethane, which has good flexibility and wear resistance, protecting the surface of the blister pack from scratches or damage while pressure is applied. This elastic support system design ensures a tight fit between the blister pack and the sealing cavity 3, preventing seal failure due to uneven pressure.

[0031] After completing the above steps, the operator closes the airtight cover 7. The airtight cover 7 is quickly connected to the sealed cavity 3 via a snap-fit ​​mechanism, and the silicone sealing ring 8 embedded at its bottom further enhances the sealing performance. The sealing ring 8 is fixed in the groove of the airtight cover 7 by adhesive, effectively preventing outside air from entering the sealed cavity 3, thereby maintaining a stable vacuum environment. At this time, the auxiliary cleaning component 18 comes into play, and the bristles 19 automatically remove dust and impurities from the outer wall of the sealed cavity 3. The bristles 19 are made of nylon, which combines wear resistance and cleaning effect. Its fixing base 20 is connected to the outer wall of the sealed cavity 3 by screws, ensuring a stable and reliable cleaning process.

[0032] Meanwhile, the heat dissipation holes 21 are designed to expel heat from the sealed cavity 3 through natural convection, preventing the equipment from overheating due to prolonged operation. A filter screen 22, made of stainless steel and installed inside the heat dissipation holes 21, offers high corrosion resistance and strength, effectively preventing external dust from entering the sealed cavity 3 and extending the equipment's service life. Furthermore, the handle 23 is designed for easy gripping by operators, and its anti-slip texture, formed through machining, enhances ease of operation and safety.

[0033] Throughout operation, the close cooperation between all components ensures the cleanliness and stability of the sealed environment. Through the vacuum environment created by the adsorption holes 9, the uniform pressure provided by the elastic clamping element 4, and the real-time cleaning by the auxiliary cleaning element 18, the equipment can meet the production requirements of high-precision products. The flexible adjustment capabilities of the sliding guide element 5 and the positioning element 6 further enhance the applicability of the equipment, enabling it to adapt to the processing needs of blister packs of different sizes. This design not only solves the problems of unsatisfactory cleanliness control, complex structure, and cumbersome maintenance in existing technologies, but also significantly reduces operating costs and improves production efficiency.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A blister pack vacuum forming dust-free sealing mechanism, characterized by, The assembly includes a sealing component (1) and an adjusting component (2). The sealing component (1) has a sealing cavity (3) at its center. An elastic clamping member (4) is installed inside the sealing cavity (3). The elastic clamping member (4) is connected to the inner wall of the sealing cavity (3) by a thread. The adjusting component (2) is located outside the sealing component (1). The adjusting component (2) includes a sliding guide (5) and a positioning member (6). The sliding guide (5) is fixedly connected to the outer wall of the sealing component (1). The positioning member (6) is adjusted in position by the sliding guide (5) and is used in conjunction with the sealing component (1).

2. The dust-free sealing mechanism for vacuum forming of a blister box according to claim 1, characterized in that, The top of the sealed cavity (3) is provided with an airtight cover plate (7), which is connected to the sealed cavity (3) by a snap fastener. The bottom of the airtight cover plate (7) is provided with a sealing ring (8), which is embedded in the groove of the airtight cover plate (7) and fixed by adhesive. The material of the sealing ring (8) is silicone. The bottom of the sealed cavity (3) is provided with an adsorption hole (9), which is evenly distributed on the bottom surface of the sealed cavity (3).

3. The dust-free sealing mechanism for vacuum forming of a plastic uptake box according to claim 1, characterized in that, The elastic clamping component (4) includes a clamping column (10) and a compression spring (11). The top of the clamping column (10) is provided with a threaded section, which is threadedly connected to the inner wall of the sealing cavity (3). The compression spring (11) is sleeved on the outside of the clamping column (10). One end of the compression spring (11) contacts the bottom of the clamping column (10), and the other end contacts the inner bottom surface of the sealing cavity (3). The bottom of the clamping column (10) is provided with a flexible gasket (12), which is fixedly connected to the clamping column (10) by screws. The material of the flexible gasket (12) is polyurethane.

4. The vacuum forming dust-free sealing mechanism for a blister box according to claim 1, characterized in that, The sliding guide (5) includes a guide rail (13) and a slider (14). The guide rail (13) is fixedly installed on the outer wall of the sealing assembly (1). The slider (14) is slidably connected to the guide rail (13). A locking bolt (15) is provided at the top of the slider (14). The locking bolt (15) passes through the slider (14) and contacts the guide rail (13). The positioning member (6) is installed on the outside of the slider (14). An adjusting screw (16) is provided at the bottom of the positioning member (6). The adjusting screw (16) is connected to the slider (14) by a thread. A rubber pad (17) is provided at the bottom of the adjusting screw (16). The rubber pad (17) is fixedly connected to the adjusting screw (16) by a screw.

5. The dust-free sealing mechanism for vacuum forming of a plastic uptake box according to claim 1, characterized in that, The sealing assembly (1) also includes an auxiliary cleaning component (18), which is disposed on the outer side wall of the sealing cavity (3). The auxiliary cleaning component (18) includes bristles (19) and a fixing seat (20). The fixing seat (20) is fixedly connected to the outer side wall of the sealing cavity (3) by screws. The bristles (19) are embedded in the groove of the fixing seat (20) and fixed by adhesive. The material of the bristles (19) is nylon.

6. The vacuum forming dust-free sealing mechanism for a blister box according to claim 1, characterized in that, The outer wall of the sealed cavity (3) is provided with a plurality of heat dissipation holes (21). The heat dissipation holes (21) are evenly distributed on the side of the sealed cavity (3). Each heat dissipation hole (21) is provided with a filter screen (22). The filter screen (22) is fixedly connected to the heat dissipation hole (21) by a buckle. The filter screen (22) is made of stainless steel.

7. The vacuum forming dust-free sealing mechanism for a blister box according to claim 2, characterized in that, The top of the airtight cover (7) is provided with a handle (23), which is fixedly connected to the airtight cover (7) by screws. The handle (23) is made of aluminum alloy. The surface of the handle (23) is provided with anti-slip texture.

8. The vacuum forming dust-free sealing mechanism for a blister box according to claim 1, characterized in that, The adjustment component (2) is used to adjust the position of the positioning component (6) according to the size of the blister box. The positioning component (6) is adjusted in position by adjusting the screw (16) and the slider (14) through a threaded connection.

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