Vacuum packaging shaping mechanism and vacuum packaging machine

Abstract

The utility model relates to a kind of vacuum packaging shaping mechanism, including box, shaping groove is provided on the box, shaping plate that extruded product is shaped is movably arranged in the shaping groove, the shaping plate divides shaping groove into product groove and power groove, the box is provided with the air pressure difference driving mechanism in power groove, shaping plate is moved by the air pressure difference generated by vacuum, power is generated by the vacuum environment of this shaping mechanism generated by vacuum packaging machine, without additional energy supply, while the simple structure of this shaping mechanism, few movable parts, easy to repair, low maintenance cost, this shaping mechanism is located in vacuum packaging machine, operator will not touch movable part when shaping, and this shaping mechanism can be directly placed in existing inner suction type vacuum packaging machine and used, without secondary modification to existing vacuum packaging machine.

Description

Technical Field

[0001] This utility model relates to the field of vacuum packaging, and more specifically, to a vacuum packaging shaping mechanism and a vacuum packaging machine. Background Technology

[0002] When vacuum packaging is used for flexible products (such as quilts and clothing), the commonly used type of vacuum packaging machine is the internal vacuum packaging machine. When the vacuum-packed product needs to be shaped into a regular cuboid, an electric or hydraulic mechanism is required to drive rigid planes to compress the vacuum-sealed product, shaping it into a cuboid. However, this approach has the following drawbacks:

[0003] 1. Electric or hydraulic mechanisms have complex structures, numerous moving parts, and high maintenance costs;

[0004] 2. Operators are easily injured by touching moving parts on electric or hydraulic mechanisms. Utility Model Content

[0005] To address the aforementioned shortcomings of existing technologies, a vacuum packaging shaping mechanism is provided.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a vacuum packaging shaping mechanism, including a box body, a shaping groove provided on the box body, a shaping plate for squeezing and shaping products is movably arranged in the shaping groove, the shaping plate divides the shaping groove into a product groove and a power groove, and the box body is provided with a pressure difference driving mechanism in the power groove for driving the shaping plate to move by the pressure difference generated by vacuum.

[0007] Preferably, the differential pressure drive mechanism includes an airbag, which is disposed at the bottom of the power slot, and the housing and the shaping plate are provided with a guide mechanism to guide the movement of the shaping plate.

[0008] Preferably, the guiding mechanism includes a guide hole with a strip-shaped structure, the guide hole is disposed on the side wall of the housing, a guide block is slidably disposed in the guide hole, and one end of the guide block is connected to the shaping plate.

[0009] Preferably, the guide holes are provided in two sets, which are located on two opposite side walls of the housing. Each set of guide holes includes two guide holes, which are arranged at intervals in the vertical direction.

[0010] Preferably, multiple airbags are provided, and the multiple airbags are arranged along the extension direction of the shaping plate, and the multiple airbags are connected in sequence.

[0011] Preferably, the differential pressure driving mechanism includes a piston, a piston cylinder is provided on the side wall of the housing opposite to the shaping plate, a sliding cavity is provided inside the piston cylinder, the piston is slidably disposed in the sliding cavity, and a piston rod is provided on the piston that extends out of the piston cylinder and connects to the shaping plate.

[0012] A vacuum packaging machine, wherein the vacuum machine is equipped with any of the above-mentioned vacuum packaging shaping mechanisms, and the vacuum packaging machine is an internal vacuum packaging machine.

[0013] The beneficial effects of this utility model are as follows: When this shaping mechanism is placed in an internal vacuum packaging machine, the product to be shaped is placed in the product slot, and the internal vacuum packaging machine is started, the air pressure in the vacuum chamber of the vacuum packaging machine gradually decreases until it approaches a vacuum state. At this time, the gas in the pressure difference driving mechanism and the vacuum state in the vacuum chamber generate a sufficient pressure difference. The gas in the pressure difference driving mechanism expands continuously with a constant mass, thereby causing the pressure difference driving mechanism to generate power to drive the shaping plate to move towards the product, thereby flattening and shaping the product. This shaping mechanism generates power through the vacuum environment generated by the vacuum packaging machine, without the need for additional power supply. At the same time, this shaping mechanism has a simple structure, very few moving parts, is easy to maintain, and has low maintenance costs. This shaping mechanism is located inside the vacuum packaging machine, so the operator will not touch the moving parts during shaping. Moreover, this shaping mechanism can be directly used in existing internal vacuum packaging machines without the need for secondary modification of the existing vacuum packaging machine. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of Embodiment 2 of this utility model.

[0017] Reference numerals: 1 housing, 2 shaping groove, 20 product groove, 21 power groove, 3 shaping plate, 4 airbag, 5 guide hole, 50 guide block, 6 piston, 60 piston cylinder, 61 sliding cavity, 62 piston rod. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. In addition, the directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," and "outer," are only for reference to the directions in the accompanying drawings. The directional terms are used to better and more clearly explain and understand this utility model, and are not intended to indicate or imply the necessary orientation of this utility model. Therefore, they should not be construed as limitations on this utility model.

[0019] Examples of embodiments of this utility model Figures 1 to 3 As shown, a vacuum packaging shaping mechanism includes a box body 1, which is a cuboid structure. A shaping groove 2 is provided on the box body 1, located on the top surface of the box body 1. A shaping plate 3 for shaping products is movably disposed in the shaping groove 2. The shaping plate 3 slides in the left and right directions. The shaping plate 3 divides the shaping groove 2 into a product groove 20 and a power groove 21. The product groove 20 is located on the left side of the power groove 21. The box body 1 is provided with a pressure difference driving mechanism in the power groove 21, which drives the shaping plate 3 to move by the pressure difference generated by vacuum.

[0020] Place this shaping mechanism into an internal vacuum packaging machine, put the product to be shaped into the product slot 20, and start the internal vacuum packaging machine. At this time, the air pressure in the vacuum chamber of the vacuum packaging machine gradually decreases until it approaches a vacuum state. At this time, the gas in the pressure difference drive mechanism and the vacuum state in the vacuum chamber generate a sufficient pressure difference. The gas in the pressure difference drive mechanism expands continuously with a constant mass, thereby causing the pressure difference drive mechanism to generate power to drive the shaping plate 3 to move towards the product, thereby flattening and shaping the product. This shaping mechanism generates power through the vacuum environment generated by the vacuum packaging machine, without the need for additional power supply. At the same time, this shaping mechanism has a simple structure, very few moving parts, is easy to maintain, and has low maintenance costs. This shaping mechanism is located inside the vacuum packaging machine, so the operator will not touch the moving parts during shaping. Moreover, this shaping mechanism can be directly put into an existing internal vacuum packaging machine for use without the need for secondary modification of the existing vacuum packaging machine.

[0021] Example 1

[0022] Further improvements, such as Figure 1As shown, the air pressure difference drive mechanism includes an airbag 4, which is located at the bottom of the power tank 21. When the airbag 4 is in a vacuum environment, the gas inside the airbag 4 expands while the mass of the gas inside remains constant, causing the airbag 4 to expand continuously. This pushes the shaping plate 3 to move towards one side of the product tank. The airbag 4 generates a force of up to one atmosphere to push the shaping plate 3. When a force of one atmosphere is applied to an A4 sheet of paper, the A4 sheet of paper is subjected to a pressure of about 636 kg, which is equivalent to the weight of six to seven adults pressing on the A4 sheet of paper. The housing 1 and the shaping plate 3 are provided with a guide mechanism to guide the movement of the shaping plate 3. The guide mechanism prevents the shaping plate 3 from getting stuck during movement.

[0023] Further improvements, such as Figure 1 As shown, the guiding mechanism includes a strip-shaped guide hole 5, which is disposed on the side wall of the housing 1. The guide hole 5 extends in the left and right direction and is a through hole. A guide block 50 is slidably disposed inside the guide hole 5. One end of the guide block 50 is connected to the shaping plate 3. The movement of the shaping plate 3 is guided by the guide hole 5 and the guide block 50.

[0024] Further improvements, such as Figure 1 As shown, there are two sets of guide holes 5. The two sets of guide holes 5 are set on two opposite side walls of the housing 1. The two sets of guide holes 5 are respectively set on the front and rear side walls of the housing 1. Each set of guide holes 5 includes two guide holes 5. The two guide holes 5 are arranged at intervals in the vertical direction. This makes the guiding force on the shaping plate 3 more balanced, and makes the shaping plate 3 move more smoothly and steadily.

[0025] Further improvements, such as Figure 1 As shown, multiple airbags 4 are provided, and the multiple airbags 4 are arranged along the extension direction of the shaping plate. The multiple airbags 4 are connected in sequence from front to back, so that the thrust on the shaping plate 3 is more uniform. By adding airbags 4, the multiple airbags 4 are stacked in two layers in the left and right directions, which can increase the stroke of the shaping plate 3 and reduce the thrust attenuation rate.

[0026] Example 2

[0027] Further improvements, such as Figure 2 and Figure 3As shown, the differential pressure drive mechanism includes a piston 6. A piston cylinder 60 is provided on the side wall of the housing 1 opposite to the shaping plate 3, i.e., the piston cylinder 60 is located on the right inner side wall of the housing 1. A sliding cavity 61 is provided inside the piston cylinder 60, and the piston 6 slides in the sliding cavity 61. A piston rod 62 is provided on the piston 6, extending out of the piston cylinder 60 and connecting to the shaping plate 3. A connecting hole is provided on the inner side wall of the sliding cavity 61 near the shaping plate 3, i.e., the connecting hole is located on the rear inner side wall of the sliding cavity 61. When in a vacuum environment, the gas in the sliding cavity 61 inside the piston cylinder 60 expands on the side of the piston 6 away from the shaping plate 3. The sliding cavity 61 is in a vacuum state on the side of the piston 6 near the shaping plate 3, thereby generating a pressure difference. This pressure difference then drives the shaping plate 3 to move through the piston 6 and piston rod 62. At this time, the piston rod 62 acts as a guide, eliminating the need for an additional guiding mechanism. When there is one set of piston 6, piston cylinder 60, and piston rod 62, preferably, the piston rod 62 is connected to the center of the shaping plate 3. When there are two sets of piston 6, piston cylinder 60, and piston rod 62, the two piston rods 62 are connected to the front and rear sides of the center of the shaping plate 3, and the two piston rods 62 are symmetrical about the center of the shaping plate 3, thereby making the force on the shaping plate 3 more uniform.

[0028] Example 3

[0029] A vacuum packaging machine, wherein the vacuum machine is equipped with any of the above-mentioned vacuum packaging shaping mechanisms, and the vacuum packaging machine is an internal vacuum packaging machine.

[0030] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A vacuum packaging shaping mechanism, comprising a box body, characterized in that, The housing is provided with a shaping groove; a shaping plate for extruding and shaping products is movably arranged in the shaping groove; the shaping plate divides the shaping groove into a product groove and a power groove; the housing is provided with a pressure difference drive mechanism in the power groove, which drives the shaping plate to move by the pressure difference generated by vacuum.

2. The vacuum packaging shaping mechanism according to claim 1, characterized in that, The differential pressure drive mechanism includes an airbag; the airbag is disposed at the bottom of the power slot; the housing and the shaping plate are provided with a guide mechanism to guide the movement of the shaping plate.

3. The vacuum packaging shaping mechanism according to claim 2, characterized in that, The guiding mechanism includes a guide hole with a strip-shaped structure; the guide hole is disposed on the side wall of the box; a guide block is slidably disposed in the guide hole; one end of the guide block is connected to the shaping plate.

4. A vacuum packaging shaping mechanism according to claim 3, characterized in that, The guide holes are provided in two sets; the two sets of guide holes are provided on two opposite side walls of the housing; each set of guide holes includes two guide holes; the two guide holes are arranged at intervals in the vertical direction.

5. A vacuum packaging shaping mechanism according to claim 2, characterized in that, The airbags are provided in multiple ways; the multiple airbags are arranged along the extension direction of the shaping plate; the multiple airbags are connected in sequence.

6. The vacuum packaging shaping mechanism according to claim 1, characterized in that, The differential pressure drive mechanism includes a piston; a piston cylinder is provided on the side wall of the housing opposite to the shaping plate; a sliding cavity is provided inside the piston cylinder; the piston is slidably disposed in the sliding cavity; and a piston rod is provided on the piston, extending out of the piston cylinder and connecting to the shaping plate.

7. A vacuum packaging machine, characterized in that, The vacuum packaging machine is equipped with any one of the vacuum packaging shaping mechanisms according to claims 1 to 6; the vacuum packaging machine is an internal vacuum packaging machine.

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