Bag sealing device of vacuum packaging machine

Abstract

The utility model relates to a bag sealing device of a vacuum packaging machine, which comprises a packaging machine body, a sealing cover is arranged at the top of the packaging machine body, a placing mechanism is arranged at the top of the packaging machine body, and a sealing mechanism for sealing a packaging bag is arranged at the top of the packaging machine body. According to the bag sealing device of the vacuum packaging machine, a packaging bag is placed on the anti-skid placing table, the packaging bag is fixed through the limiting plate, meanwhile, the position where the packaging bag is not sealed is placed between the two heat sealing plates, the outer surface of the packaging bag is covered with the sealing cover, and when the sealing cover makes contact with the pressing plate, the pressing plate and the rack can move downwards; the rack moves to drive a gear and a rotating rod to rotate, the rotating rod rotates to drive a first bevel gear to rotate, the first bevel gear rotates to drive a second bevel gear and a threaded rod to rotate, the threaded rod rotates to drive two threaded blocks to move relatively, the two heat sealing plates can move relatively through relative movement of the threaded blocks, and bidirectional sealing can be conducted on the sealing position. The sealing performance is better, and the sealing efficiency and quality are improved.

Description

Technical Field

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

[0002] The vacuum packaging machine can automatically extract the air in the packaging bag and complete the sealing process after reaching a predetermined vacuum degree. It can also be refilled with nitrogen or other mixed gases to complete the sealing process. Vacuum packaging machines are often used in the food industry because after vacuum packaging, the food can resist oxidation, thereby achieving the purpose of long-term preservation.

[0003] A Chinese patent with authorization announcement number CN219407232U discloses a vacuum packaging machine, which achieves the purpose of collecting food by controlling the sliding of a push plate through a control component after the food packaging at the sealing strip is completed, thereby simultaneously pushing multiple foods into a collection basket, thereby improving the efficiency of removing the packaged food, thereby improving the use effect of the vacuum packaging machine. However, the above device still has some defects when used. Although it can effectively seal the packaging bag, the existing one generally uses a single-sided heat sealing plate to seal the packaging bag at high temperature, so the sealing of the packaging bag cannot be guaranteed, and there are problems such as general sealing, the quality of the seal cannot be guaranteed, and the vacuum state in the packaging bag cannot be guaranteed. Therefore, a bag sealing device of a vacuum packaging machine is proposed to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a bag sealing device for a vacuum packaging machine, which has the advantages of good bag sealing effect and guaranteed quality inside the bag, and solves the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bag sealing device of a vacuum packaging machine, comprising a packaging machine body, a sealing cover is arranged on the top of the packaging machine body, a placing mechanism is arranged on the top of the packaging machine body, and a sealing mechanism for sealing the packaging bag is arranged on the top.

[0006] Further, the sealing mechanism includes a fixed box fixedly connected to the top of the packaging machine body, the outer surface of the fixed box is slidably connected with a rack, the top of the rack is fixedly connected with a pressure plate, the bottom of the rack is fixedly connected with a connecting plate, the outer surface of the fixed box is fixedly connected with a mounting plate, the top of the mounting plate is fixedly connected with a spring, the outer surface of the rack is meshed with a gear, the gear is fixedly connected with a rotating rod, the side of the rotating rod close to the fixed box is fixedly connected with a first bevel gear, the side of the first bevel gear away from the gear is meshed with a second bevel gear, the second bevel gear is fixedly connected with a threaded rod, the outer surface of the threaded rod is threadedly connected with a threaded block, and the side of the threaded block away from the gear is fixedly connected to a heat sealing plate.

[0007] Furthermore, the placement mechanism includes an anti-skid placement platform fixedly connected to the top of the packaging machine body, and the top of the anti-skid placement platform is slidably connected to a limiting plate.

[0008] Furthermore, a limiting rod is fixedly connected inside the fixing box, and the threaded block is slidably connected to the outer surface of the limiting rod.

[0009] Furthermore, the heat sealing plate is slidably connected to the outside of the fixing box, and the threaded rod is rotatably connected to the inside of the fixing box.

[0010] Furthermore, a limiting block is fixedly connected to one side of the rack close to the fixed box, a limiting groove is provided on the outer surface of the fixed box, the limiting block and the limiting groove are both T-shaped in cross-section, and the limiting block is slidably connected to the inside of the limiting groove.

[0011] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0012] The bag sealing device of the vacuum packaging machine places the packaging bag on a non-slip placement table, fixes the packaging bag with a limit plate, places the unsealed bag between two heat-sealing plates, and covers the outer surface of the packaging bag with a cover. When the cover contacts the pressing plate, the pressing plate and the rack are moved downward. The movement of the rack can drive the gear and the rotating rod to rotate. The rotation of the rotating rod drives the first bevel gear to rotate. The rotation of the first bevel gear drives the second bevel gear and the threaded rod to rotate. The rotation of the threaded rod drives the two threaded blocks to move relative to each other. The relative movement of the threaded blocks can make the two heat-sealing plates move relative to each other, so that the sealing part can be bidirectionally sealed, so that the sealing is better, and the sealing efficiency and quality are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the sealing mechanism of the utility model;

[0015] Figure 3This is a schematic diagram of the sealing mechanism of the utility model from another perspective;

[0016] Figure 4 This is a schematic diagram of the connection between the fixing box, the limiting groove and the limiting block of the utility model;

[0017] Figure 5 It is a schematic diagram of the placement mechanism of the utility model.

[0018] In the figure: 1 packaging machine body, 2 sealing cover, 3 placing mechanism, 301 anti-slip placing table, 302 limiting plate, 4 sealing mechanism, 401 fixing box, 402 pressing plate, 403 rack, 404 heat sealing plate, 405 rotating rod, 406 gear, 407 connecting plate, 408 spring, 409 mounting plate, 410 first bevel gear, 411 limiting block, 412 second bevel gear, 413 threaded rod, 414 limiting rod, 415 threaded block, 416 limiting groove. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-5 A bag sealing device of a vacuum packaging machine in this embodiment includes a packaging machine body 1, a sealing cover 2 is arranged on the top of the packaging machine body 1, a placing mechanism 3 is arranged on the top of the packaging machine body 1, and a sealing mechanism 4 for sealing the packaging bag is arranged on the top.

[0021] Among them, the sealing mechanism 4 includes a fixed box 401 fixedly connected to the top of the packaging machine body 1, a rack 403 is slidably connected to the outer surface of the fixed box 401, a pressure plate 402 is fixedly connected to the top of the rack 403, a connecting plate 407 is fixedly connected to the bottom of the rack 403, a mounting plate 409 is fixedly connected to the outer surface of the fixed box 401, a spring 408 is fixedly connected to the top of the mounting plate 409, a gear 406 is meshedly connected to the outer surface of the rack 403, a rotating rod 405 is fixedly connected to the inside of the gear 406, a first bevel gear 410 is fixedly connected to the side of the rotating rod 405 close to the fixed box 401, a second bevel gear 412 is meshedly connected to the side of the first bevel gear 410 away from the gear 406, a threaded rod 413 is fixedly connected to the inside of the second bevel gear 412, and the threaded rod 413 is rotatably connected to the inside of the fixed box 401.

[0022] Second, see Figure 1-4, the outer surface of the threaded rod 413 is threadedly connected with a threaded block 415, and a limiting rod 414 is fixedly connected inside the fixed box 401. The threaded block 415 is slidably connected to the outer surface of the limiting rod 414. By setting the limiting rod 414, the threaded block 415 can be prevented as much as possible from being more stable when sliding. The side of the threaded block 415 away from the gear 406 is fixedly connected with a heat sealing plate 404, and the heat sealing plate 404 is slidably connected to the outside of the fixed box 401. The side of the rack 403 close to the fixed box 401 is fixedly connected with a limiting block 411, and a limiting groove 416 is provided on the outer surface of the fixed box 401. The cross-sectional shape of the limiting block 411 and the limiting groove 416 are both T-shaped. The limiting block 411 is slidably connected to the inside of the limiting groove 416. By setting the limiting block 411 and the limiting groove 416, the rack 403 can be made more stable when sliding.

[0023] In addition, see Figure 1 and 5 The placement mechanism 3 includes an anti-slip placement table 301 fixedly connected to the top of the packaging machine body 1, and the top of the anti-slip placement table 301 is slidably connected to a limiting plate 302. The packaging bag is placed on the anti-slip placement table 301 and fixed with the limiting plate 302, which can minimize the sliding of the packaging bag during sealing.

[0024] The working principle of the above embodiment is:

[0025] The bag sealing device of the vacuum packaging machine places the packaging bag on the anti-slip placement table 301, uses the limiting plate 302 to fix the packaging bag, and at the same time places the unsealed bag between the two heat sealing plates 404, and covers the outer surface of the packaging bag with the sealing cover 2. When the sealing cover 2 contacts the pressing plate 402, the pressing plate 402 and the rack 403 will move downward, and the movement of the rack 403 can drive the gear 406 and the rotating rod 405 to rotate, and the rotation of the rotating rod 405 drives the first bevel gear 410 to rotate, and the rotation of the first bevel gear 410 drives the second bevel gear 412 and the threaded rod 413 to rotate, and the rotation of the threaded rod 413 drives the two threaded blocks 415 to move relative to each other, and the relative movement of the threaded blocks 415 can make the two heat sealing plates 404 move relative to each other, so that the sealing part can be bidirectionally sealed, so that the sealing performance is better, and the sealing efficiency and quality are improved.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bag sealing device for a vacuum packaging machine, comprising a packaging machine body (1), characterized in that: A sealing cover (2) is arranged on the top of the packaging machine body (1), a placing mechanism (3) is arranged on the top of the packaging machine body (1), and a sealing mechanism (4) for sealing the packaging bag is arranged on the top; The sealing mechanism (4) comprises a fixing box (401) fixedly connected to the top of the packaging machine body (1); a rack (403) is slidably connected to the outer surface of the fixing box (401); a pressure plate (402) is fixedly connected to the top of the rack (403); a connecting plate (407) is fixedly connected to the bottom of the rack (403); a mounting plate (409) is fixedly connected to the outer surface of the fixing box (401); a spring (408) is fixedly connected to the top of the mounting plate (409); a gear (406) is meshingly connected to the outer surface of the rack (403); A rotating rod (405) is fixedly connected inside the gear (406); a first bevel gear (410) is fixedly connected to the side of the rotating rod (405) close to the fixed box (401); a second bevel gear (412) is meshingly connected to the side of the first bevel gear (410) away from the gear (406); a threaded rod (413) is fixedly connected inside the second bevel gear (412); a threaded block (415) is threadedly connected to the outer surface of the threaded rod (413); and a heat sealing plate (404) is fixedly connected to the side of the threaded block (415) away from the gear (406).

2. The bag sealing device of a vacuum packaging machine according to claim 1, characterized in that: The placement mechanism (3) comprises an anti-slip placement platform (301) fixedly connected to the top of the packaging machine body (1), and the top of the anti-slip placement platform (301) is slidably connected to a limiting plate (302).

3. The bag sealing device of a vacuum packaging machine according to claim 1, characterized in that: The fixing box (401) is fixedly connected to a limiting rod (414) inside, and the threaded block (415) is slidably connected to the outer surface of the limiting rod (414).

4. The bag sealing device of a vacuum packaging machine according to claim 1, characterized in that: The heat sealing plate (404) is slidably connected to the outside of the fixing box (401), and the threaded rod (413) is rotatably connected to the inside of the fixing box (401).

5. The bag sealing device of a vacuum packaging machine according to claim 1, characterized in that: A side of the rack (403) close to the fixed box (401) is fixedly connected to a limiting block (411); a limiting groove (416) is provided on the outer surface of the fixed box (401); the limiting block (411) and the limiting groove (416) are both T-shaped in cross-section; the limiting block (411) is slidably connected to the inside of the limiting groove (416).

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