Vacuum packaging machine with limiting frame

Abstract

The utility model relates to the technical field of limiting frames, in particular to a vacuum packaging machine with a limiting frame, which comprises a vacuum packaging machine body, the limiting frame, a pressing structure and a fixing structure, the left end and the right end of the top of the vacuum packaging machine body are fixedly connected with supporting plates, and the supporting plates are rotatably connected with rotating shafts. The front side and the rear side of the rotating shaft are fixedly connected with connecting plates, a pressing rod is fixedly connected between the two connecting plates, the outer wall of the rotating shaft is fixedly connected with two gears, the gears are meshed with a rack, the rack is slidably connected with a supporting plate, and the fixing structure comprises a first support and a second support. The front side and the rear side of the supporting plate are fixedly connected with a first support and a second support, the outer wall of the first support is fixedly connected with a first buckle, and the outer wall of the second support is fixedly connected with a second buckle. The limiting frame is provided with the pressing structure, the tension spring can drive the rotating shaft to rotate, so that the pressing rod is reset, the pressing rod presses the sealing bag tightly, and the limiting frame is more convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of limit frame technology, specifically relating to a vacuum packaging machine with a limit frame. Background Technology

[0002] Vacuum packaging machines can automatically extract air from packaging bags and seal them after reaching a predetermined vacuum level. Since polyester and polyethylene plastic films were successfully used in vacuum packaging, vacuum packaging has developed rapidly. Vacuum packaging machines are often used in the food industry because food can resist oxidation after vacuum packaging, thus achieving the purpose of long-term preservation.

[0003] However, the existing vacuum packaging machine's limit frame does not have a pressing structure. The traditional limit mechanism has poor fixing effect and often becomes unstable during use, requiring adjustments and reducing the work efficiency of the workers. In addition, the existing vacuum packaging machine's limit frame does not have a fixing structure and does not have the function of fixing the position of the pressing rod. Therefore, there is an urgent need for a vacuum packaging machine with a limit frame to solve the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned technical problems, the purpose of this utility model is to provide a vacuum packaging machine with a limiting frame, so as to solve the problems mentioned in the background art that the limiting frame of the existing vacuum packaging machine does not have a pressing structure, the traditional limiting mechanism has poor fixing effect, and often becomes unstable during use, requiring adjustments, which reduces the work efficiency of workers. In addition, the limiting frame of the existing vacuum packaging machine does not have a fixing structure and does not have the function of fixing the position of the pressing rod.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vacuum packaging machine with a limiting frame, comprising a vacuum packaging machine body, a limiting frame, a pressing structure, and a fixing structure. The limiting frame includes a support plate. The left and right ends of the top of the vacuum packaging machine body are fixedly connected to the support plate. The support plate is rotatably connected to a rotating shaft. The front and rear sides of the rotating shaft are fixedly connected to connecting plates. A pressing rod is fixedly connected between the two connecting plates. The pressing structure includes gears. Two gears are fixedly connected to the outer wall of the rotating shaft. The gears mesh with a rack. The rack is slidably connected to the support plate. The fixing structure includes a first bracket and a second bracket. The front and rear sides of the support plate are fixedly connected to the first bracket and the second bracket. The outer wall of the first bracket is fixedly connected to a first buckle, and the outer wall of the second bracket is fixedly connected to a second buckle.

[0006] Preferably, the outer walls of both connecting plates are fixedly connected to limiting rods, which are engaged with buckle one and buckle two.

[0007] Preferably, slide bars are fixedly connected to both the front and rear sides of the rack, and the slide bars are slidably connected to the vacuum packaging machine body.

[0008] Preferably, the clamping structure includes a tension spring, one end of which abuts against the outer wall of the rack, and the other end of which abuts against the inner wall of the vacuum packaging machine body.

[0009] Preferably, the bracket is threadedly connected to two fixing bolts, and the two fixing bolts are threadedly connected to the support plate.

[0010] Preferably, the bracket is threadedly connected to two fixing bolts, and the two fixing bolts are threadedly connected to the support plate.

[0011] Preferably, both buckle one and buckle two are C-shaped buckles, and both buckle one and buckle two are made of nylon and have a certain degree of elasticity.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This vacuum packaging machine with a limiting frame is equipped with a pressing structure. Pulling the pressing rod causes the pressing rod to drive the connecting plate to rotate, which in turn causes the connecting plate to rotate via a rotating shaft. The rotating shaft drives the gear to rotate counterclockwise, which in turn drives the rack to move. This causes the tension spring to be stretched due to tension, and the tension spring pulls the rack, which in turn drives the gear to move. The gear then drives the rotating shaft to rotate clockwise, causing the pressing rod to press the sealed bag. Through the pressing structure, the tension spring can drive the rotating shaft to rotate, thereby resetting the pressing rod and pressing the sealed bag, making the limiting frame easier to use.

[0014] 2. This vacuum packaging machine with a limiting frame has a fixed structure. When the pressing rod rotates 90 degrees, the limiting rod engages with the first buckle, fixing the position of the pressing rod. Pressing the pressing rod causes the limiting rod to engage with the second buckle, thus fixing the position of the pressing rod. By fixing the position of the pressing rod through the fixed structure, it is easier to place and press the sealing bag, improving the stability of the processed items. Attached Figure Description

[0015] Figure 1 This is a front perspective view of the present utility model;

[0016] Figure 2 This is a three-dimensional front view of the limiting frame of this utility model;

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

[0018] Figure 4 This is a schematic diagram of the exploded structure of the compression structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the exploded structure of the fixed structure of this utility model.

[0020] In the diagram: 1. Vacuum packaging machine body; 2. Limiting frame; 21. Support plate; 22. Rotating shaft; 23. Connecting plate; 24. Pressing rod; 25. Limiting rod; 3. Pressing structure; 31. Gear; 32. Rack; 33. Slide rod; 34. Tension spring; 4. Fixing structure; 41. Bracket 1; 42. Fixing bolt 1; 43. Buckle 1; 44. Bracket 2; 45. Fixing bolt 2; 46. Buckle 2. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-5 This utility model provides an embodiment of a vacuum packaging machine with a limiting frame, comprising a vacuum packaging machine body 1, a limiting frame 2, a pressing structure 3, and a fixing structure 4. The limiting frame 2 includes a support plate 21. The support plate 21 is fixedly connected to the left and right ends of the top of the vacuum packaging machine body 1. The support plate 21 is rotatably connected to a rotating shaft 22. The front and rear sides of the rotating shaft 22 are fixedly connected to connecting plates 23. A pressing rod 24 is fixedly connected between the two connecting plates 23. The pressing structure 3 includes gears 31. Two gears 31 are fixedly connected to the outer wall of the rotating shaft 22. The gears 31 mesh with a rack 32. The rack 32 is slidably connected to the support plate 21. The fixing structure 4 includes a first bracket 41 and a second bracket 44. The first bracket 41 and the second bracket 44 are fixedly connected to the front and rear sides of the support plate 21. The outer wall of the first bracket 41 is fixedly connected to a first buckle 43, and the outer wall of the second bracket 44 is fixedly connected to a second buckle 46.

[0023] Furthermore, the outer walls of both connecting plates 23 are fixedly connected to limiting rods 25, which are engaged with buckles 43 and 46.

[0024] Furthermore, slide rods 33 are fixedly connected to both the front and rear sides of the rack 32. The slide rods 33 are slidably connected to the vacuum packaging machine body 1, so that the connecting plate 23 rotates through the rotating shaft 22. The rotating shaft 22 drives the gear 31 to rotate counterclockwise, and the gear 31 drives the rack 32 to move.

[0025] Furthermore, the pressing structure 3 includes a tension spring 34. One end of the tension spring 34 abuts against the outer wall of the rack 32, and the other end of the tension spring 34 abuts against the inner wall of the vacuum packaging machine body 1. The tension of the tension spring 34 pulls the rack 32, causing the rack 32 to drive the gear 31 to move, and causing the gear 31 to drive the rotating shaft 22 to rotate clockwise.

[0026] Furthermore, bracket 41 is threadedly connected to two fixing bolts 42, which are threadedly connected to support plate 21. The bracket 41 is fixed to support plate 21 by fixing bolts 42.

[0027] Furthermore, bracket 244 is threadedly connected to two fixing bolts 245, which are threadedly connected to support plate 21. Bracket 244 is fixed to support plate 21 by fixing bolts 245.

[0028] Furthermore, both buckle 1 43 and buckle 2 46 are C-type buckles, and both buckle 1 43 and buckle 2 46 are made of nylon, which has a certain degree of elasticity. The limiting rod 25 is inserted into buckle 1 43 to fix the position of the pressing rod 24. The limiting rod 25 is inserted into buckle 2 46 to fix the position of the pressing rod 24.

[0029] Working principle:

[0030] In use, pull the pressing rod 24, causing the connecting plate 23 to rotate. The connecting plate 23 rotates via the rotating shaft 22, which in turn drives the gear 31 to rotate counterclockwise. The gear 31 then moves the rack 32, causing the tension spring 34 to stretch under tension. When the pressing rod 24 rotates 90 degrees, the limiting rod 25 engages with the latch 43, fixing the position of the pressing rod 24. At this point, place the opening of the sealing bag on top of the support plate 21 and push the pressing rod 24, causing it to disengage from the latch 43. The tension of the tension spring 34 then pulls the rack 32. The rack 32 drives the gear 31 to move, which in turn drives the rotating shaft 22 to rotate clockwise. This causes the pressing rod 24 to press the sealed bag. Simultaneously, pressing the pressing rod 24 causes the limiting rod 25 to engage with the buckle 46, thus fixing the position of the pressing rod 24. The pressing structure 3 allows the tension spring 34 to drive the rotating shaft 22 to rotate, thereby resetting the pressing rod 24 and pressing the sealed bag. This makes the limiting frame 2 easier to use. The fixing structure 4 fixes the position of the pressing rod 24, facilitating the placement and pressing of the sealed bag and improving the stability of the processed items.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A vacuum packaging machine with a limiting frame, comprising a vacuum packaging machine body (1), a limiting frame (2), a pressing structure (3), and a fixing structure (4), characterized in that: The limiting frame (2) includes a support plate (21). The support plate (21) is fixedly connected to the left and right ends of the top of the vacuum packaging machine body (1). The support plate (21) is rotatably connected to the rotating shaft (22). The front and rear sides of the rotating shaft (22) are fixedly connected to the connecting plate (23). The pressing rod (24) is fixedly connected between the two connecting plates (23). The pressing structure (3) includes a gear (31). The outer wall of the rotating shaft (22) is fixedly connected to two gears (31). The gear (31) meshes with the rack (32). The rack (32) is slidably connected to the support plate (21). The fixing structure (4) includes a bracket one (41) and a bracket two (44). The front and rear sides of the support plate (21) are fixedly connected to the bracket one (41) and the bracket two (44). The outer wall of the bracket one (41) is fixedly connected to the buckle one (43). The outer wall of the bracket two (44) is fixedly connected to the buckle two (46).

2. A vacuum packaging machine with a limiting frame according to claim 1, characterized in that: The outer walls of both connecting plates (23) are fixedly connected to limiting rods (25), which are engaged with buckle one (43) and buckle two (46).

3. A vacuum packaging machine with a limiting frame according to claim 1, characterized in that: The rack (32) is fixedly connected to slide rods (33) on both the front and rear sides, and the slide rods (33) are slidably connected to the vacuum packaging machine body (1).

4. A vacuum packaging machine with a limiting frame according to claim 1, characterized in that: The pressing structure (3) includes a tension spring (34), one end of which abuts against the outer wall of the rack (32), and the other end of which abuts against the inner wall of the vacuum packaging machine body (1).

5. A vacuum packaging machine with a limiting frame according to claim 1, characterized in that: The bracket (41) is threaded to two fixing bolts (42), and the two fixing bolts (42) are threaded to the support plate (21).

6. A vacuum packaging machine with a limiting frame according to claim 1, characterized in that: The bracket (44) is threaded to two fixing bolts (45), and the two fixing bolts (45) are threaded to the support plate (21).

7. A vacuum packaging machine with a limiting frame according to claim 1, characterized in that: Both buckle one (43) and buckle two (46) are C-type buckles, and both buckle one (43) and buckle two (46) are made of nylon and have a certain degree of elasticity.

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