Vacuum packaging machine

Abstract

The utility model discloses a vacuum packaging machine which comprises a machine body, a plurality of lower sealing seat assemblies arranged on the machine body, an upper cover connected to the upper portion of the machine body through a swing arm and a plurality of upper sealing seat assemblies arranged on the upper cover and corresponding to the lower sealing seat assemblies. The left side of the upper cover is connected with the machine body through two swing arms, the right side of the upper cover is connected with the machine body through a swing arm, the swing arm located on the right side of the upper cover is arranged between the two swing arms located on the left side of the upper cover, and the three swing arms are arranged in parallel. According to the utility model, a three-swing-arm structure is adopted, so that the structure is simpler on the basis of ensuring the stability and reliability of the structure, the earlier-stage assembly and the later-stage disassembly and maintenance are facilitated, and the production cost of equipment can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum packaging equipment, in particular to a vacuum packaging machine. Background Art

[0002] Vacuum packaging machine is a machine that has the functions of vacuuming, heat sealing and cooling in one go. It is suitable for vacuum sealing packaging of food, aquatic products, chemical raw materials, electronic components, precision parts and other products. It can prevent products from oxidation, mildew, corrosion and moisture, and can maintain quality and freshness and extend the storage period of products.

[0003] The existing vacuum packaging machine includes a body, a plurality of lower sealing seat assemblies arranged on the body, an upper cover connected to the top of the body through a swing arm, and a plurality of upper sealing seat assemblies corresponding to the lower sealing seat assemblies arranged on the upper cover. The prior art usually has four swing arms. For example, the invention patent with patent application number CN202410182907.8 discloses a vacuum packaging machine, which includes a packaging machine body; a vacuum sealing cover, at least two support plates are arranged on both sides of the vacuum sealing cover, and the two ends of the support plate are respectively rotatably connected to the vacuum sealing cover and the packaging machine body, and the number of its support plates (swing arms) is not less than four. However, the structure of the support plate (swing arm) can still be optimized to facilitate its early assembly and later disassembly and maintenance, while reducing the production cost of the equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a vacuum packaging machine. The utility model adopts a three-swing arm structure. On the basis of ensuring the reliable stability of the structure, the structure is simpler, which is not only conducive to early assembly and later disassembly and maintenance, but also can reduce the production cost of the equipment.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a vacuum packaging machine, comprising a machine body, a plurality of lower sealing seat assemblies arranged on the machine body, an upper cover connected to the upper part of the machine body through a swing arm, and a plurality of upper sealing seat assemblies arranged on the upper cover and corresponding to the lower sealing seat assemblies; the left side of the upper cover is connected to the machine body through two swing arms, the right side of the upper cover is connected to the machine body through a swing arm, the swing arm located on the right side of the upper cover is arranged between the two swing arms located on the left side of the upper cover, and the three swing arms are arranged parallel to each other.

[0006] By adopting the above technical solution, the existing vacuum packaging machine that uses more than four swing arms to connect the upper cover and the body is changed to a structure that uses only three swing arms. With three-point support, the stable swing of the upper cover can also be achieved. While ensuring the reliability of the structural stability, the structure is simpler, which is not only conducive to the early assembly and later disassembly and maintenance, but also can reduce the production cost of the equipment.

[0007] The utility model is further configured such that the distance between the swing arm on the right side of the upper cover and the two swing arms on the left side are equal.

[0008] By adopting the above technical solution, which is the optimal solution, it is ensured that the center of gravity of the upper cover is in the center and the transmission is more stable.

[0009] The utility model is further configured such that the upper end of the swing arm is connected to the upper cover through a connecting piece, the connecting piece includes a hexagonal operating part and a screw part and an optical axis part coaxially arranged at both ends of the hexagonal operating part, and the hexagonal operating part, the screw part and the optical axis part are an integrated structure, a first screw hole matching with the screw part is opened on the side of the upper cover, and an upper shaft hole is provided on the upper end of the swing arm for rotationally matching with the optical axis part.

[0010] By adopting the above technical solution, the rotation connection between the upper end of the swing arm and the upper cover can be achieved, and the connection structure is simple and reliable, and disassembly and assembly are very convenient.

[0011] The utility model is further configured that a bearing is arranged in the upper shaft hole, the outer ring of the bearing is interference fit with the inner wall of the upper shaft hole, and the optical axis portion is inserted in the inner ring of the bearing.

[0012] By adopting the above technical solution, the friction of the optical axis part and the upper axis hole when the upper cover swings can be reduced, which can not only reduce energy consumption, but also reduce friction and increase service life.

[0013] The utility model is further configured that three rotating shafts are rotatably mounted on the machine body, and a lower shaft hole for inserting the corresponding rotating shaft end portion is opened at the lower end of the swing arm.

[0014] By adopting the above technical solution, the rotation connection between the lower end of the swing arm and the machine body can be achieved, and the connection structure is simple and reliable, and disassembly and assembly are very convenient.

[0015] The utility model is further configured such that a floating gap is provided at the lower end of the swing arm, and the floating gap extends into the lower shaft hole, so that two symmetrically arranged clamping arms are formed at the lower end of the swing arm.

[0016] By adopting the above technical solution, the deformation amount of the lower shaft hole at the lower end of the swing arm can be increased. When the outer diameter of the rotating shaft is slightly larger than the inner diameter of the lower shaft hole, the rotating shaft can also be inserted into the lower shaft hole of the swing arm.

[0017] The utility model is further configured such that a second screw hole connected to the lower shaft hole is provided on the side of the swing arm, a locking screw is threadedly connected to the position of the swing arm corresponding to the second screw hole, and the inner end of the locking screw is tightly pressed against the side of the rotating shaft.

[0018] By adopting the above technical solution, when the inner end of the locking screw is pressed against the side of the rotating shaft, the rotating shaft and the swing arm can be linked. When the driving device drives the rotating shaft to rotate through the transmission mechanism, the swing arm can be caused to swing, thereby driving the upper cover to swing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the first viewing direction of the overall structure of the utility model;

[0020] Figure 2 It is a second view structural schematic diagram of the utility model as a whole;

[0021] Figure 3 It is a schematic diagram of a partial explosion structure of the utility model;

[0022] Figure 4 This is a structural schematic diagram of the swing arm of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the connecting piece of the utility model.

[0024] In the figure: 1. Machine body; 2. Lower sealing seat assembly; 3. Swing arm; 4. Upper cover; 5. Upper sealing seat assembly; 6. Connector; 7. Hexagonal operating part; 8. Screw part; 9. Optical axis part; 10. First screw hole; 11. Upper shaft hole; 12. Bearing; 13. Rotating shaft; 14. Lower shaft hole; 15. Floating gap; 16. Clamp arm; 17. Second screw hole; 18. Locking screw. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example: As shown in the attached Figures 1 to 5The vacuum packaging machine shown comprises a body 1, a plurality of lower sealing seat assemblies 2 arranged on the body 1, an upper cover 4 connected to the upper part of the body 1 through a swing arm 3, and a plurality of upper sealing seat assemblies 5 arranged on the upper cover 4 and corresponding to the lower sealing seat assemblies 2; the left side of the upper cover 4 is connected to the body 1 through two swing arms 3, the right side of the upper cover 4 is connected to the body 1 through one swing arm 3, the swing arm 3 located on the right side of the upper cover 4 is arranged between the two swing arms 3 located on the left side of the upper cover 4, and the three swing arms 3 are arranged parallel to each other. The structure in which the upper cover 4 and the body 1 in the existing vacuum packaging machine are connected by more than four swing arms 3 is changed to a structure connected by only three swing arms 3, and three-point support can also realize the stable swing of the upper cover 4. On the basis of ensuring the reliable stability of the structure, the structure is made simpler, which is not only conducive to the early assembly and later disassembly and maintenance, but also can reduce the production cost of the equipment.

[0027] Preferably, the distance between the swing arm 3 on the right side of the upper cover 4 and the two swing arms 3 on the left side is equal, and the three swing arms 3 have the same length. In the orthographic projection on the vertical plane, the upper end of the swing arm 3 on the right side is arranged at the center of the upper ends of the two swing arms 3 on the left side, and the lower end of the swing arm 3 on the right side is arranged at the center of the lower ends of the two swing arms 3 on the left side. This is the optimal solution, which ensures that the center of gravity of the upper cover 4 is at the center and the transmission is more stable.

[0028] As attached Figures 3 to 5 As shown, the upper end of the swing arm 3 is connected to the upper cover 4 through a connecting member 6, and the connecting member 6 includes a hexagonal operating part 7 and a screw part 8 and an optical axis part 9 coaxially arranged at both ends of the hexagonal operating part 7, and the hexagonal operating part 7, the screw part 8 and the optical axis part 9 are an integrated structure, and the cross-section of the hexagonal operating part is a regular hexagonal shape. The side of the upper cover 4 is provided with a first screw hole 10 that matches the screw part 8, and the upper end of the swing arm 3 is provided with an upper shaft hole 11 for forming a rotational match with the optical axis part 9. This design can realize the rotational connection between the upper end of the swing arm 3 and the upper cover 4, and the connection structure is simple and reliable, and it is very convenient to disassemble and assemble.

[0029] As attached Figure 2 and attached Figure 3 As shown, a bearing 12 is arranged in the upper shaft hole 11, and the outer ring of the bearing 12 is interference fit with the inner wall of the upper shaft hole 11, and the optical axis portion 9 is inserted into the inner ring of the bearing 12, and the outer diameter of the optical axis portion 9 is matched with the inner diameter of the inner ring of the bearing 12. This design can reduce the friction of the optical axis portion 9 and the upper shaft hole 11 when the upper cover 4 swings, which can not only reduce energy consumption, but also reduce friction and increase service life.

[0030] As attached Figure 2 and attached Figure 3As shown, three rotating shafts 13 are rotatably mounted on the body 1, and the lower end of the swing arm 3 is provided with a lower shaft hole 14 for inserting the corresponding end of the rotating shaft 13, and the inner diameter of the lower shaft hole 14 is adapted to the outer diameter of the rotating shaft 13. This design can realize the rotatable connection between the lower end of the swing arm 3 and the body 1, and the connection structure is simple and reliable, and it is very convenient to disassemble and assemble.

[0031] As attached Figure 3 and attached Figure 4 As shown, a floating gap 15 is provided at the lower end of the swing arm 3, and the floating gap 15 extends into the lower shaft hole 14, so that two symmetrically arranged clamping arms 16 are formed at the lower end of the swing arm 3. The floating gap 15 can provide a deformation amount of the lower shaft hole 14 at the lower end of the swing arm 3, and when the outer diameter of the rotating shaft 13 is slightly larger than the inner diameter of the lower shaft hole 14, the rotating shaft 13 can also be inserted into the lower shaft hole 14 of the swing arm 3.

[0032] As attached Figure 3 and attached Figure 4 As shown, the side of the swing arm 3 is provided with a second screw hole 17 connected to the lower shaft hole 14, and the position of the swing arm 3 corresponding to the second screw hole 17 is threadedly connected with a locking screw 18, and the inner end of the locking screw 18 is pressed against the side of the rotating shaft 13. When the inner end of the locking screw 18 is pressed against the side of the rotating shaft 13, the rotating shaft 13 and the swing arm 3 can be linked, and when the driving device drives the rotating shaft 13 to rotate through the transmission mechanism, the swing arm 3 can be caused to swing, and then the upper cover 4 can be driven to swing.

Claims

1. A vacuum packaging machine, comprising a machine body (1), a plurality of lower sealing seat assemblies (2) arranged on the machine body (1), an upper cover (4) connected to the upper part of the machine body (1) via a swing arm (3), and a plurality of upper sealing seat assemblies (5) arranged on the upper cover (4) and corresponding to the lower sealing seat assemblies (2); characterized in that: The left side of the upper cover (4) is connected to the machine body (1) via two swing arms (3), and the right side of the upper cover (4) is connected to the machine body (1) via one swing arm (3). The swing arm (3) located on the right side of the upper cover (4) is arranged between the two swing arms (3) located on the left side of the upper cover (4), and the three swing arms (3) are arranged parallel to each other.

2. The vacuum packaging machine according to claim 1, characterized in that: The distance between the swing arm (3) located on the right side of the upper cover (4) and the two swing arms (3) located on the left side is equal.

3. The vacuum packaging machine according to claim 1, characterized in that: The upper end of the swing arm (3) is connected to the upper cover (4) through a connecting piece (6); the connecting piece (6) comprises a hexagonal operating part (7) and a screw rod part (8) and an optical axis part (9) coaxially arranged at two ends of the hexagonal operating part (7); the hexagonal operating part (7), the screw rod part (8) and the optical axis part (9) are an integrated structure; a first screw hole (10) matching with the screw rod part (8) is provided on the side of the upper cover (4); and an upper axis hole (11) for rotationally matching with the optical axis part (9) is provided on the upper end of the swing arm (3).

4. The vacuum packaging machine according to claim 3, characterized in that: A bearing (12) is arranged in the upper shaft hole (11); the outer ring of the bearing (12) is interference-fitted with the inner wall of the upper shaft hole (11); and the optical axis portion (9) is inserted into the inner ring of the bearing (12).

5. The vacuum packaging machine according to claim 3, characterized in that: Three rotating shafts (13) are rotatably mounted on the machine body (1), and a lower shaft hole (14) for inserting the corresponding end of the rotating shaft (13) is provided at the lower end of the swing arm (3).

6. The vacuum packaging machine according to claim 5, characterized in that: The lower end of the swing arm (3) is provided with a floating gap (15), and the floating gap (15) extends into the lower shaft hole (14), so that the lower end of the swing arm (3) forms two symmetrically arranged clamping arms (16).

7. The vacuum packaging machine according to claim 5, characterized in that: A second screw hole (17) connected to the lower shaft hole (14) is provided on the side of the swing arm (3); a locking screw (18) is threadedly connected to the position of the swing arm (3) corresponding to the second screw hole (17); the inner end of the locking screw (18) is tightly pressed against the side of the rotating shaft (13).

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