Pneumatic lifting mechanism of vacuum packaging machine

Abstract

The utility model discloses a pneumatic lifting mechanism of a vacuum packaging machine, which comprises a box body and a box cover hinged on the box body, a working cavity is arranged in the box body, a lifting device is arranged in the working cavity, a lower sealing strip is arranged in the box body, an upper sealing strip matched with the lower sealing strip is arranged on the box cover, and the lifting device is arranged on the box cover. The lifting device comprises a bearing frame and a plurality of first air cylinders, the first air cylinders are used for driving the bearing frame to do reciprocating motion in the vertical direction, the bearing frame is provided with a guide rail assembly extending in the width direction of the box body, and a bearing plate is installed on the guide rail assembly. The lifting device drives the bearing frame to move upwards, so that the bearing plate moves to the position above the upper surface of the box body, the bearing plate can be pulled out, the bearing plate can be moved out of the box body, a worker can carry the to-be-hollowed-out part to the bearing plate, and compared with the mode that the to-be-hollowed-out part is carried into the bearing frame in a working cavity, the carrying is more convenient, and interference is less.

Description

Technical Field

[0001] This utility model relates to the field of vacuum packaging machine technology, and in particular to a pneumatic lifting mechanism for a vacuum packaging machine. Background Technology

[0002] Vacuum packaging, as an important method of food preservation, has advantages such as convenience, low cost, and good preservation effect. Therefore, various types of vacuum packaging machines have appeared on the market. There are many types of lifting devices for vacuum packaging machines. Usually, the lifting device of a vacuum packaging machine is a cylinder lifting device, but other lifting devices may also be used.

[0003] A vacuum packaging machine, as described in Chinese Utility Model Patent (Authorization Announcement No.: CN207809959U), includes a vacuum packaging cavity and a matching top cover. The vacuum packaging cavity is equipped with a lifting device and an operating platform. The lower end of the lifting device is fixed to the bottom of the vacuum packaging cavity, and the upper end is mounted on the operating platform. The operating platform can move up and down via the lifting device. A heat-sealing device is provided at the upper end of the vacuum packaging cavity. The heat-sealing device includes a corresponding upper sealing strip and a lower sealing strip. The upper sealing strip is mounted on the top cover via a cylinder. The lower sealing strip is correspondingly positioned at the upper edge of the vacuum packaging cavity. A steel wire strip is provided on the upper surface of the lower sealing strip, and both ends of the steel wire strip are fixedly connected to both ends of the lower sealing strip. A gap is provided between the middle of the steel wire strip and the lower sealing strip, allowing the packaging bag to pass through. This vacuum packaging machine is easy to operate, can vacuum package different types of bags, and has a wide range of applications.

[0004] The aforementioned shortcomings of the prior art are as follows: when the lifting device of the packaging machine is supporting items that need to be vacuum-packed, the bag to be vacuum-packed needs to be moved into the upper surface of the lifting device. However, for some heavier items, since the packaging machine is a box, it is troublesome to move the items into the box, and there is a lot of interference from the box. Therefore, a more convenient vacuum packaging machine is needed. Utility Model Content

[0005] The purpose of this invention is to address the above problems by providing a pneumatic lifting mechanism for a vacuum packaging machine, which has the advantage of making it easier to transport the contents into the working chamber.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic lifting mechanism for a vacuum packaging machine, comprising a housing and a lid hinged to the housing, the housing having a working chamber, a lifting device within the working chamber, a lower sealing strip within the housing, and an upper sealing strip cooperating with the lower sealing strip on the lid, the lifting device comprising a support frame and a plurality of first cylinders, the first cylinders being used to drive the support frame to reciprocate in the vertical direction, the support frame having a guide rail assembly extending along the width direction of the housing, a support plate being mounted on the guide rail assembly, and the support plate reciprocating along the width direction of the housing via the guide rail assembly.

[0007] Preferably, the guide rail assembly includes a fixing block and a slide rail. The fixing block has a groove extending along the width direction of the housing. The slide rail is slidably fitted in the groove and is fixedly installed at the lower end of the support plate.

[0008] Preferably, the lifting device further includes several telescopic components, each of which includes a sleeve and a sliding rod. The sleeves are fixedly fitted to the support frame, and the sliding rods are fixedly fitted to the bottom of the working chamber. Each sliding rod is slidably fitted to its corresponding sleeve, and a connecting plate is installed between the sleeve and the output end of the first cylinder.

[0009] Preferably, a second cylinder is installed on each side of the box body, and a connecting rod is provided at each end of the box cover. A connecting ring is provided at the output end of the second cylinder, and the connecting ring is sleeved on the outer periphery of the connecting rod.

[0010] Preferably, the housing is equipped with a start switch, which is electrically connected to the first cylinder and the second cylinder.

[0011] Preferably, the housing is equipped with an emergency stop button.

[0012] Preferably, the housing is equipped with a control panel.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This utility model provides a pneumatic lifting mechanism for a vacuum packaging machine. By opening the box cover, the lifting device drives the support frame to move upward, thereby moving the support plate above the upper surface of the box. Therefore, the support plate can be pulled out and moved outside the box, allowing the operator to move the hollow items to be vacuumed onto the support plate. This is more convenient and less disruptive than moving them into the support frame inside the working chamber. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 4 This is a top view of the structure of this utility model;

[0019] Figure 5 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 6 for Figure 3 A magnified structural diagram of A in the diagram.

[0021] Figure descriptions: 11. Box body; 10. Working chamber; 12. Box cover; 121. Upper seal; 122. Connecting rod; 13. Lower seal; 21. Support frame; 22. First cylinder; 23. Telescopic assembly; 231. Sleeve; 232. Slide rod; 24. Connecting plate; 25. Support plate; 251. Slide rail; 26. Fixing block; 261. Slide groove; 31. Second cylinder; 32. Connecting ring; 4. Start switch; 5. Emergency stop button; 6. Control panel. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1-6 As shown, a pneumatic lifting mechanism for a vacuum packaging machine includes a housing 11 and a cover 12 hinged to the housing 11. The housing 11 has a working chamber 10, and a lifting device is provided in the working chamber 10. The housing 11 has a lower sealing strip 13, and the cover 12 has an upper sealing strip 121 that cooperates with the lower sealing strip 13. The lifting device includes a support frame 21 and a plurality of first cylinders 22. The number of first cylinders 22 is six in this application. Three first cylinders 22 are respectively provided on both sides of the support frame 21. The first cylinders 22 are used to drive the support frame 21 to reciprocate in the vertical direction. The support frame 21 is provided with a guide rail assembly extending along the width direction of the housing 11. A support plate 25 is installed on the guide rail assembly, and the support plate 25 reciprocates along the width direction of the housing 11 through the guide rail assembly.

[0024] In use, by opening the box cover 12 and the lifting device moving the support frame 21 upward, the support plate 25 is moved above the upper surface of the box body 11. Thus, the support plate 25 can be pulled out and moved outside the box body 11, so that the staff can move the hollow items to be extracted onto the support plate 25. This is more convenient and less interfered with than moving them into the support frame 21 inside the working chamber 10.

[0025] In this application, there are two sets of guide rail assemblies, and the two sets of guide rail assemblies are symmetrically arranged on the upper surface of the support frame 21. The guide rail assembly includes a fixing block 26 and a slide rail 251. The fixing block 26 is provided with a slide groove 261 extending along the width direction of the housing 11. The slide rail 251 is slidably engaged in the slide groove 261. The slide rail 251 is fixedly installed at the lower end of the support plate 25. The support plate 25 is pulled out of the working cavity 10 by the cooperation of the slide rail 251 and the slide groove 261.

[0026] The lifting device also includes several telescopic components 23. In this application, there are four sets of telescopic components 23, and each telescopic component 23 is located at one of the four corners of the support frame 21. Therefore, the support frame 21 can be more balanced during lifting. Each telescopic component 23 includes a sleeve 231 and a slide rod 232. The sleeves 231 are fixedly engaged with the support frame 21, and the slide rods 232 are fixedly engaged with the bottom of the working cavity 10. Each slide rod 232 is slidably engaged with the corresponding sleeve 231. A connecting plate 24 is installed between the sleeve 231 and the output end of the first cylinder 22. The sleeves 231 and the slide rods 232 serve as guides.

[0027] A second cylinder 31 is installed on both sides of the box body 11, and a connecting rod 122 is provided at both ends of the box cover 12. A connecting ring 32 is provided at the output end of the second cylinder 31. The connecting ring 32 is sleeved on the outer periphery of the connecting rod 122, and the movement of the box cover 12 is driven by the second cylinder 31.

[0028] The housing 11 is equipped with a start switch 4, which is electrically connected to the first cylinder 22 and the second cylinder 31. The start switch 4 is used to start and stop the first cylinder 22 and the second cylinder 31.

[0029] The housing 11 is equipped with an emergency stop button 5, which can immediately stop the equipment when a malfunction occurs. The housing 11 is also equipped with a control panel 6, through which parameters can be adjusted.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pneumatic lifting mechanism for a vacuum packaging machine, comprising a housing (11) and a lid (12) hinged to the housing (11), wherein the housing (11) has a working chamber (10), the working chamber (10) is provided with a lifting device, the housing (11) is provided with a lower sealing strip (13), and the lid (12) is provided with an upper sealing strip (121) that cooperates with the lower sealing strip (13), characterized in that: The lifting device includes a support frame (21) and several first cylinders (22). The first cylinders (22) are used to drive the support frame (21) to reciprocate in the vertical direction. The support frame (21) is provided with a guide rail assembly extending along the width direction of the box (11). A support plate (25) is installed on the guide rail assembly. The support plate (25) reciprocates along the width direction of the box (11) through the guide rail assembly.

2. The pneumatic lifting mechanism of a vacuum packaging machine according to claim 1, characterized in that: The guide rail assembly includes a fixing block (26) and a slide rail (251). The fixing block (26) has a groove (261) extending along the width direction of the box (11). The slide rail (251) is slidably fitted in the groove (261) and is fixedly installed at the lower end of the support plate (25).

3. The pneumatic lifting mechanism of a vacuum packaging machine according to claim 1, characterized in that: The lifting device also includes several telescopic components (23), each of which includes a sleeve (231) and a slide rod (232). The sleeve (231) is fixedly engaged with the support frame (21), and the slide rod (232) is fixedly engaged with the bottom of the working chamber (10). The slide rod (232) is slidably engaged with the corresponding sleeve (231). A connecting plate (24) is installed between the sleeve (231) and the output end of the first cylinder (22).

4. The pneumatic lifting mechanism of a vacuum packaging machine according to claim 1, characterized in that: The box body (11) is equipped with a second cylinder (31) on both sides, and the box cover (12) is provided with a connecting rod (122) at both ends. The output end of the second cylinder (31) is provided with a connecting ring (32), and the connecting ring (32) is sleeved on the outer periphery of the connecting rod (122).

5. The pneumatic lifting mechanism of a vacuum packaging machine according to claim 4, characterized in that: The housing (11) is equipped with a start switch (4), which is electrically connected to the first cylinder (22) and the second cylinder (31).

6. The pneumatic lifting mechanism of a vacuum packaging machine according to claim 1, characterized in that: An emergency stop button (5) is provided on the housing (11).

7. The pneumatic lifting mechanism of a vacuum packaging machine according to claim 1, characterized in that: The housing (11) is equipped with a control panel (6).

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