Air leakage prevention sealing device of vacuum sealer

Abstract

The utility model relates to an air leakage prevention sealing device of a vacuum sealer, and relates to the field of vacuum sealers. The device comprises a connecting base, a guide shell is installed on the upper end face of the connecting base, the guide shell is fixedly connected with the connecting base, an elastic support is installed on the guide shell, the elastic support is in sliding connection with the guide shell, an adjusting assembly for supporting the elastic support is further arranged at the center of the guide shell, and the guide shell is sleeved with a machine shell; the machine shell is connected with the guide shell in a sliding mode, and limiting seats for limiting the machine shell are further installed on the two sides of the guide shell. According to the air leakage prevention sealing device of the vacuum sealing machine, by designing the structure that the connecting base, the guide shell, the elastic support, the adjusting assembly, the machine shell, the limiting base and the composite sealing strip are matched, it is guaranteed that the air leakage prevention sealing device is stably installed at the front end of the sealing machine through the connecting base during use, and it is guaranteed that the whole air leakage prevention sealing device serves as a lower half structure of the sealing machine for clamping a packaging bag.

Description

Technical Field

[0001] This application relates to the technical field of vacuum sealing machines, and in particular to a leak-proof sealing device for a vacuum sealing machine. Background Technology

[0002] Vacuum sealing machines play a crucial role in numerous industries, including food and electronics. They extract air from packaging bags to create a vacuum environment, then seal the bags, effectively extending the shelf life of goods and protecting them from external air, moisture, and dust. A vacuum sealing machine mainly consists of a machine body, a vacuum pump, a heating device, and a sealing structure. Among these, the sealing structure is the key component for achieving the vacuum sealing function, directly affecting the vacuum level and sealing quality.

[0003] Regarding the aforementioned technologies, it has been found that current vacuum sealing machines on the market primarily achieve sealing through materials such as rubber sealing strips and silicone gaskets. However, these materials are prone to aging and deformation after prolonged use, leading to a decline in sealing performance. Furthermore, existing sealing devices are susceptible to air leakage during the sealing process due to uneven pressure or material defects, affecting the sealing effect. Moreover, ordinary sealing strips have limited elasticity and toughness, making them unsuitable for packaging bags of varying thicknesses and materials. When dealing with thicker or harder packaging bags, the sealing effect is significantly reduced. Utility Model Content

[0004] To improve the sealing effect of packaging and adapt to the needs of different packaging bags, this application provides an air-leakage-proof sealing device for a vacuum sealing machine.

[0005] The air-leakage sealing device for a vacuum sealing machine provided in this application adopts the following technical solution:

[0006] An air-leakage sealing device for a vacuum sealing machine includes a connecting base, a guide shell mounted on the upper surface of the connecting base, the guide shell being fixedly connected to the connecting base, an elastic bracket mounted on the guide shell, the elastic bracket being slidably connected to the guide shell, and an adjusting component supporting the elastic bracket being provided at the center of the guide shell, a machine housing fitted on the guide shell, the machine housing being slidably connected to the guide shell, limiting seats for limiting the movement of the machine housing being mounted on both sides of the guide shell, the limiting seats being fixedly connected to the guide shell, and a composite sealing strip being mounted on the machine housing, the composite sealing strip being engaged and fixedly fixed to the machine housing.

[0007] By adopting the above technical solution, the connecting seat ensures that the sealing device can be stably fixed on the sealing machine. Simultaneously, by fixing a guide shell to the connecting seat, it facilitates the installation of the elastic support and the machine housing. The elastic support provides stable support to the machine housing, and the adjusting component changes the supporting force of the elastic support on the machine housing. The cooperation of these components gives the sealing device good elasticity and adjustability, enabling it to adapt to different working environments and pressure requirements, effectively preventing air leakage during sealing. The guide shell guides the sliding of the elastic support and the machine housing, the elastic support provides elastic support, the adjusting component adjusts the supporting force of the elastic support, the limiting seat limits the movement of the machine housing to ensure stable sliding, and the composite sealing strip enhances the sealing effect.

[0008] Optionally, the connecting seat includes a bending central frame, connecting side plates, and connecting blocks. The connecting side plates are disposed on both sides of the bending central frame and are integrally formed with the bending central frame. The connecting blocks are installed on the upper end surface of the connecting side plates and are fixedly connected to the connecting side plates.

[0009] By adopting the above technical solution, the connecting seat adopts a structural design of bending middle frame, connecting side plate and connecting block. The integrally formed connecting side plate and bending middle frame ensure the structural strength and stability of the connecting seat. The connecting block is used to connect with other components, which facilitates the installation and fixing of the entire sealing device.

[0010] Optionally, the guide shell includes a horizontal center plate and an auxiliary vertical plate, wherein the auxiliary vertical plate is installed at both ends of the horizontal center plate and is integrally formed with the horizontal center plate.

[0011] By adopting the above technical solution, the horizontal middle plate and auxiliary vertical plate of the guide shell are integrally formed, providing stable support and guidance for the sliding of the elastic bracket and the housing, ensuring the accurate relative position between the components, and improving the working stability of the sealing device.

[0012] Optionally, the elastic support includes a main frame plate and support springs, the support springs being evenly distributed on the upper surface of the main frame plate and fixedly connected to the main frame plate.

[0013] By adopting the above technical solution, the elastic support is designed as a combination structure of a main frame plate and a support spring. The support spring is evenly distributed on the main frame plate, which can provide uniform elastic support force, enabling the sealing device to better adapt to pressure changes during operation and enhance the sealing effect.

[0014] Optionally, the lower end face of the main frame plate is provided with a plurality of guide slide rods that are slidably connected to the horizontal middle plate, and the head of the guide slide rod is fixedly connected to the main frame plate.

[0015] By adopting the above technical solution, the guide slide rod on the lower end face of the main frame plate is slidably connected to the horizontal middle plate, which further ensures the smoothness and stability of the elastic support in the guide shell, avoids the elastic support from shifting during the sliding process, and thus ensures the normal operation of the sealing device.

[0016] Optionally, the adjustment assembly includes a nut sleeve and a support screw. The nut sleeve is fixedly installed at the center of the lower end face of the horizontal middle plate, and the support screw is threaded into the nut sleeve, with the head of the support screw supported on the lower end face of the main frame plate.

[0017] By adopting the above technical solution, the nut sleeve and support screw of the adjustment component are matched. By rotating the support screw, its position in the nut sleeve can be adjusted, thereby changing the support height of the main frame plate and realizing the adjustment of the support force of the elastic support to adapt to different sealing requirements.

[0018] Optionally, the housing includes a housing portion and a limiting strip that cooperates with the composite sealing strip. The limiting strip is symmetrically installed on the upper end face of the housing portion and is integrally formed with the housing portion. The housing portion has central grooves on both sides that cooperate with the limiting seats.

[0019] By adopting the above technical solution, the housing part and the limiting strip are integrally formed. The limiting strip is used to install the composite sealing strip to ensure the installation of the composite sealing strip firmly. The central grooves on both sides of the housing part cooperate with the limiting seat to enable the housing to slide stably on the guide shell. At the same time, the limiting seat plays a limiting role on the housing to prevent the housing from sliding excessively.

[0020] Optionally, the composite sealing strip includes a bottom strip, an arc-shaped portion, and an inner core portion. The arc-shaped portion is integrally formed and disposed on the upper end face of the bottom strip, and the inner core portion is installed between the bottom strip and the arc-shaped portion.

[0021] By adopting the above technical solution, the structural design of the bottom strip, arc-shaped part and inner core of the composite sealing strip increases the contact area between the sealing strip and the sealing surface, while the inner core enhances the elasticity and toughness of the sealing strip, thereby improving the sealing effect and effectively preventing air leakage. The sealing strip adopts a double-layer structure, with the inner core made of high-elasticity silicone and the outer bottom strip and arc-shaped part made of wear-resistant polyurethane, ensuring high elasticity while also increasing wear resistance.

[0022] In summary, this application includes at least one of the following beneficial technical effects: The anti-leakage sealing device of the vacuum sealing machine of this application is designed with a structure in which a connecting seat, a guide shell, an elastic bracket, an adjusting component, a machine housing, a limiting seat, and a composite sealing strip cooperate. This ensures that the connecting seat is stably installed at the front end of the sealing machine during use, ensuring that the whole structure serves as the lower half of the sealing machine for holding the packaging bag. The guide shell provides guidance for the sliding of each component. The elastic bracket and adjusting component can adjust the support force according to actual needs. The machine housing and the limiting seat ensure the stability of the sliding. The composite sealing strip greatly enhances the sealing effect, effectively preventing air leakage and improving the vacuum degree and sealing quality of the vacuum sealing machine. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure in the embodiments of this application.

[0024] Figure 2 yes Figure 1 The diagram shows the exploded structure of the device.

[0025] Figure 3 This is a perspective view of the guide shell, elastic support, and adjustment assembly in the embodiments of this application.

[0026] Figure 4 yes Figure 3 Side view of the device shown.

[0027] Figure 5 yes Figure 3 The device shown is viewed from below.

[0028] Figure 6 This is a perspective view of the composite sealing strip in the embodiments of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Connecting seat; 11. Bending middle frame; 12. Connecting side plate; 13. Connecting block; 2. Guide shell; 21. Horizontal middle plate; 22. Auxiliary upright plate; 3. Elastic support; 31. Main frame plate; 311. Guide slide rod; 32. Support spring; 4. Adjustment assembly; 41. Nut sleeve; 42. Support screw; 5. Housing; 51. Shell part; 511. Middle groove; 52. Limiting strip; 6. Limiting seat; 7. Composite sealing strip; 71. Bottom strip; 72. Arc-shaped part; 73. Inner core part. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] This application discloses an air-leakage-proof sealing device for a vacuum sealing machine. (Refer to...) Figure 1 , Figure 2 and Figure 3As shown, a leak-proof sealing device for a vacuum sealing machine includes a connecting base 1, a guide shell 2 installed on the upper surface of the connecting base 1, the guide shell 2 being fixedly connected to the connecting base 1, an elastic bracket 3 installed on the guide shell 2, the elastic bracket 3 being slidably connected to the guide shell 2, and an adjusting component 4 supporting the elastic bracket 3 being provided at the center of the guide shell 2, a machine housing 5 being fitted onto the guide shell 2, and the machine housing 5 being slidably connected to the guide shell 2, and limiting seats 6 being installed on both sides of the guide shell 2 to limit the movement of the machine housing 5, the limiting seats 6 being fixedly connected to the guide shell 2, and a composite sealing strip 7 being installed on the machine housing 5, the composite sealing strip 7 being engaged and fixed to the machine housing 5. The connecting seat 1 ensures the sealing device is stably fixed on the sealing machine. The guide shell 2, fixedly installed on the connecting seat 1, facilitates the installation of the elastic bracket 3 and the housing 5. The elastic bracket 3 provides stable support for the housing 5, and the adjusting component 4 alters the supporting force of the elastic bracket 3 on the housing 5. The coordinated operation of these components gives the sealing device excellent elasticity and adjustability, allowing it to adapt to different working environments and pressure requirements, effectively preventing air leakage during sealing. The guide shell 2 guides the sliding of the elastic bracket 3 and the housing 5. The elastic bracket 3 provides elastic support, the adjusting component 4 adjusts the supporting force of the elastic bracket 3, the limiting seat 6 limits the movement of the housing 5, ensuring stable sliding, and the composite sealing strip 7 enhances the sealing effect. The connecting seat 1 includes a bent central frame 11, connecting side plates 12, and connecting blocks 13. The connecting side plates 12 are located on both sides of the bent central frame 11 and are integrally formed with the bent central frame 11. The connecting blocks 13 are installed on the upper end face of the connecting side plates 12 and are fixedly connected to the connecting side plates 12. The connecting seat 1 adopts a structural design of bent central frame 11, connecting side plates 12, and connecting blocks 13. The integrally formed connecting side plates 12 and bent central frame 11 ensure the structural strength and stability of the connecting seat 1. The connecting blocks 13 are used to connect with other components, facilitating the installation and fixing of the entire sealing device.

[0032] Reference Figure 2 and Figure 3 As shown, the guide shell 2 includes a horizontal center plate 21 and an auxiliary vertical plate 22. The auxiliary vertical plate 22 is installed at both ends of the horizontal center plate 21 and is integrally formed with the horizontal center plate 21. The integral formation of the horizontal center plate 21 and the auxiliary vertical plate 22 of the guide shell 2 provides stable support and guidance for the sliding of the elastic bracket 3 and the housing 5, ensuring the accurate relative position between the components and improving the working stability of the sealing device.

[0033] Reference Figure 3 and Figure 4As shown, the elastic support 3 includes a main frame plate 31 and support springs 32. The support springs 32 are evenly distributed on the upper surface of the main frame plate 31 and are fixedly connected to the main frame plate 31. By designing the elastic support 3 as a combination structure of the main frame plate 31 and support springs 32, and with the support springs 32 evenly distributed on the main frame plate 31, uniform elastic support force can be provided, enabling the sealing device to better adapt to pressure changes during operation and enhancing the sealing effect. Several guide rods 311 are evenly distributed on the lower surface of the main frame plate 31, which are slidably connected to the horizontal middle plate 21. The heads of the guide rods 311 are fixedly connected to the main frame plate 31. The slidable connection between the guide rods 311 on the lower surface of the main frame plate 31 and the horizontal middle plate 21 further ensures the smoothness and stability of the elastic support 3 within the guide shell 2, preventing the elastic support 3 from shifting during sliding, thereby ensuring the normal operation of the sealing device.

[0034] Reference Figure 3 and Figure 5 As shown, the adjusting assembly 4 includes a nut sleeve 41 and a support screw 42. The nut sleeve 41 is fixedly installed at the center of the lower end face of the horizontal middle plate 21. The support screw 42 is threaded into the nut sleeve 41, and the head of the support screw 42 is supported on the lower end face of the main frame plate 31. The nut sleeve 41 and the support screw 42 of the adjusting assembly 4 cooperate. By rotating the support screw 42, its position in the nut sleeve 41 can be adjusted, thereby changing the support height on the main frame plate 31 and realizing the adjustment of the support force of the elastic bracket 3 to adapt to different sealing requirements.

[0035] Reference Figure 1 and Figure 2 As shown, the housing 5 includes a housing portion 51 and a limiting strip 52 that cooperates with the composite sealing strip 7. The limiting strip 52 is symmetrically installed on the upper end face of the housing portion 51 and is integrally formed with the housing portion 51. The housing portion 51 has central grooves 511 on both sides that cooperate with the limiting seat 6. The housing portion 51 and the limiting strip 52 of the housing 5 are integrally formed. The limiting strip 52 is used to install the composite sealing strip 7 and ensure the installation of the composite sealing strip 7 firmly. The central grooves 511 on both sides of the housing portion 51 cooperate with the limiting seat 6, so that the housing 5 can slide stably on the guide shell 2. At the same time, the limiting seat 6 plays a limiting role for the housing 5 and prevents the housing 5 from sliding excessively.

[0036] Reference Figure 2 and Figure 6As shown, the composite sealing strip 7 includes a bottom strip 71, an arc-shaped portion 72, and an inner core 73. The arc-shaped portion 72 is integrally formed on the upper end face of the bottom strip 71, and the inner core 73 is installed between the bottom strip 71 and the arc-shaped portion 72. The structural design of the bottom strip 71, arc-shaped portion 72, and inner core 73 of the composite sealing strip 7 increases the contact area between the sealing strip and the sealing surface, while the inner core 73 enhances the elasticity and toughness of the sealing strip, improving the sealing effect and effectively preventing air leakage. The sealing strip adopts a double-layer structure; the inner core 73 is made of highly elastic silicone, while the outer bottom strip 71 and arc-shaped portion 72 are made of wear-resistant polyurethane, ensuring high elasticity while also increasing wear resistance.

[0037] The implementation principle of the anti-leakage sealing device for a vacuum sealing machine according to an embodiment of this application is as follows: During installation, the connecting seat 1 is installed on the corresponding position of the vacuum sealing machine through the connecting block 13, ensuring that the connecting seat 1 is firmly installed. The guide shell 2 is fixedly installed on the upper end face of the connecting seat 1, and the two are fixed together by bolts passing through the connecting block 13 and the auxiliary upright plate 22 to ensure the stability of the guide shell 2. Next, the guide slide rod 311 on the lower end face of the main frame plate 31 of the elastic bracket 3 is aligned with the horizontal middle plate 21 of the guide shell 2, so that the guide slide rod 311 is slidably connected to the horizontal middle plate 21. Then, the support spring 32 is evenly fixedly installed on the upper end face of the main frame plate 31 and fixedly connected to the main frame plate 31. By rotating the support screw 42, its support height on the main frame plate 31 can be adjusted, thereby adjusting the support force of the elastic bracket 3. The housing 5 is fitted onto the guide housing 2, and then the housing 5 is limited by the limit seats 6 installed on both sides of the guide housing 2. Finally, the bottom strip 71 of the composite sealing strip 7 is engaged and fixed with the limit strip 52 of the housing 5, so that the composite sealing strip 7 is firmly installed on the housing 5.

[0038] When the vacuum sealing machine is working, the support spring 32 of the elastic bracket 3 provides elastic support force, ensuring tight contact between the composite sealing strip 7 and the sealing surface. When it is necessary to adjust the sealing pressure, the support force of the elastic bracket 3 can be changed by rotating the support screw 42 of the adjusting assembly 4 to adapt to different sealing requirements. The limiting seat 6 limits the housing 5, ensuring the stable sliding of the housing 5, thereby ensuring the normal operation of the entire sealing device and effectively preventing air leakage.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A leak-proof sealing device for a vacuum sealing machine, comprising a connecting seat (1), characterized in that: A guide shell (2) is installed on the upper end face of the connecting seat (1). The guide shell (2) is fixedly connected to the connecting seat (1). An elastic bracket (3) is installed on the guide shell (2). The elastic bracket (3) is slidably connected to the guide shell (2). An adjustment component (4) supporting the elastic bracket (3) is also provided at the center of the guide shell (2). A housing (5) is fitted on the guide shell (2). The housing (5) is slidably connected to the guide shell (2). Limiting seats (6) for limiting the housing (5) are also installed on both sides of the guide shell (2). The limiting seats (6) are fixedly connected to the guide shell (2). A composite sealing strip (7) is also installed on the housing (5). The composite sealing strip (7) is engaged and fixed to the housing (5).

2. The anti-leakage sealing device for a vacuum sealing machine according to claim 1, characterized in that: The connecting seat (1) includes a bending frame (11), a connecting side plate (12) and a connecting block (13). The connecting side plate (12) is disposed on both sides of the bending frame (11) and is integrally formed with the bending frame (11). The connecting block (13) is installed on the upper surface of the connecting side plate (12) and is fixedly connected with the connecting side plate (12).

3. The anti-leakage sealing device for a vacuum sealing machine according to claim 2, characterized in that: The guide shell (2) includes a horizontal middle plate (21) and an auxiliary vertical plate (22). The auxiliary vertical plate (22) is installed at both ends of the horizontal middle plate (21) and is integrally formed with the horizontal middle plate (21).

4. The anti-leakage sealing device for a vacuum sealing machine according to claim 3, characterized in that: The elastic support (3) includes a main frame plate (31) and a support spring (32). The support spring (32) is evenly arranged on the upper surface of the main frame plate (31) and is fixedly connected to the main frame plate (31).

5. The anti-leakage sealing device for a vacuum sealing machine according to claim 4, characterized in that: The lower end face of the main frame plate (31) is evenly provided with a plurality of guide slide rods (311) that are slidably connected to the horizontal middle plate (21), and the head of the guide slide rod (311) is fixedly connected to the main frame plate (31).

6. The anti-leakage sealing device for a vacuum sealing machine according to claim 5, characterized in that: The adjustment assembly (4) includes a nut sleeve (41) and a support screw (42). The nut sleeve (41) is fixedly installed at the center of the lower end face of the horizontal middle plate (21). The support screw (42) is threaded in the nut sleeve (41), and the head of the support screw (42) is supported on the lower end face of the main frame plate (31).

7. The anti-leakage sealing device for a vacuum sealing machine according to claim 6, characterized in that: The housing (5) includes a housing part (51) and a limiting strip (52) that cooperates with the composite sealing strip (7). The limiting strip (52) is symmetrically installed on the upper end face of the housing part (51), and the limiting strip (52) and the housing part (51) are integrally formed. The housing part (51) has a central groove (511) on both sides that cooperates with the limiting seat (6).

8. The anti-leakage sealing device for a vacuum sealing machine according to claim 7, characterized in that: The composite sealing strip (7) includes a bottom strip (71), an arc-shaped part (72) and an inner core part (73). The arc-shaped part (72) is integrally formed on the upper end face of the bottom strip (71), and the inner core part (73) is installed between the bottom strip (71) and the arc-shaped part (72).

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