Vacuum packaging device

Abstract

The utility model relates to the technical field of vacuum packaging, and discloses a vacuum packaging device which comprises a vacuum packaging table, a sealing cover is hinged to the upper portion of the vacuum packaging table through a switching rod, a gathering assembly is movably arranged on the vacuum packaging table, and the gathering assembly comprises a gathering plate, a limiting strip and a two-way lead screw. The demolding assembly is movably arranged between the vacuum packaging table and the sealing cover and comprises an air pump, an ejection frame, a trapezoidal block and a pulley, the air pump is fixedly arranged on one side of the vacuum packaging table and communicates with the sealing cover, the ejection frame is movably arranged on the vacuum packaging table, and the pulley is hinged to the bottom face of one side of the ejection frame through a hinged support; the trapezoidal block is slidably arranged below the pulley; the two-way lead screw is used for driving the pressure gathering plates on the two sides to gather food in a packaging bag inwards, so that the packaging bag has corner positions suitable for sealing, manual operation is not needed, meanwhile, the device has the capacity of adapting to vacuum packaging of special-shaped objects due to the arrangement of the gathering assembly, and therefore the adaptability of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of vacuum packaging technology, specifically, it relates to a vacuum packaging device. Background Technology

[0002] Vacuum packaging machines are devices that remove air from packaging containers and seal them to extend product shelf life and prevent oxidation and microbial contamination.

[0003] The prior art discloses a vacuum packaging device (CN214524630U), which includes a vacuum packaging stage, a vacuum chamber, a vacuum assembly disposed inside the vacuum packaging stage, and a sealing cover fixed above the vacuum chamber. A thermoforming assembly for sealing the packaging bag is disposed on the edge of the vacuum chamber, and a counterweight is disposed on the side of the sealing cover away from the vacuum chamber. This application has the effect of improving the sealing effect of the vacuum packaging device.

[0004] Research revealed that existing technologies, due to a lack of relevant temperature control and demolding measures, are prone to overheating and sticking of the packaging bags during the hot-pressing and melting process, resulting in damage and failure to achieve vacuum packaging. Furthermore, the lack of measures for pre-packaging the items during the vacuuming process makes the device less adaptable to vacuum packaging of irregularly shaped objects, requiring manual adjustment of the items' position within the packaging bag to ensure proper vacuum sealing.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A vacuum packaging device, comprising

[0008] A vacuum packaging table, with an indicator panel installed on one side and a sealing cover hinged to the top of the vacuum packaging table via a conversion rod;

[0009] A gathering assembly is movably mounted on a vacuum packaging table. The gathering assembly includes a pressure plate, a limiting strip, and a bidirectional lead screw. The bidirectional lead screw is rotatably mounted at the top center of the vacuum packaging table. Two pressure plates are symmetrically arranged, and the two pressure plates are threadedly engaged with the two ends of the bidirectional lead screw. Four limiting strips are provided, and every two limiting strips are respectively positioned at the two ends of the pressure plate.

[0010] A demolding assembly is movably disposed between a vacuum packaging table and a sealing cap. The demolding assembly includes an air pump, an ejector frame, a trapezoidal block, and a pulley. The air pump is fixedly disposed on one side of the vacuum packaging table and is connected to the sealing cap. The ejector frame is movably disposed on the vacuum packaging table. The bottom surface of one side of the ejector frame is hinged to the pulley via a hinge seat. The trapezoidal block is slidably disposed below the pulley.

[0011] In a preferred embodiment of the present invention, a cylinder is fixedly installed on one side of the vacuum packaging table. The cylinder is located directly above the air pump. An air pipe is connected between the air pump and the cylinder. There are three air pipes. Two other air pipes are symmetrically arranged between the air pump and the sealing cover.

[0012] In a preferred embodiment of this utility model, the vacuum packaging platform is provided with an air extraction component inside. The indicator panel is electrically connected to the air extraction component. Two heat-pressing strips are symmetrically arranged on the bottom surface of the sealing cover. There are six heat-pressing strips in total. The other four heat-pressing strips are arranged in an array on the top surface of the vacuum packaging platform. The indicator panel is electrically connected to an air pump, a cylinder, the air extraction component, and the six heat-pressing strips.

[0013] In a preferred embodiment of this utility model, two rows of venting channels are symmetrically opened on the sealing cover. The venting channels are connected to the air pump through air pipes. Four temperature sensors are arrayed on the vacuum packaging platform. The temperature sensors are correspondingly arranged on one side of the hot pressing strip. The indicator panel is electrically connected to the temperature sensors. The temperature sensors are electrically connected to the air pump and the cylinder.

[0014] In a preferred embodiment of this utility model, a limiting groove is provided at each of the four corners of the vacuum packaging table, and a locking hole is provided on the vacuum packaging table. The locking hole is located at the center of one of the pair of limiting grooves. A limiting post is fixedly provided at each of the four corners of the bottom surface of the ejection frame. The limiting post slides in the limiting groove. The hinge and the pulley both move through the locking hole. The pulley slides against the inclined surface of the trapezoidal block.

[0015] In a preferred embodiment of this utility model, a partition box is fixedly installed at the top center of the vacuum packaging table, and sliding grooves are provided on both sides of the partition box. A motor is fixedly installed inside the partition box, and the output end of the motor is connected to one end of a bidirectional lead screw. The indicator panel is electrically connected to the motor, and the pressure plate slides between the two sliding grooves and the partition box.

[0016] In a preferred embodiment of this utility model, a nail post is fixedly provided at each end of the bottom surface of the limiting strip, and four through holes are arrayed on the top surface of the pressure plate. A spring is fixedly provided between the nail post and the through holes, and the nail post is elastically connected to the pressure plate through the spring.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. By setting up a demolding component in conjunction with a ventilation channel, a temperature sensor monitors the temperature in real time. When the temperature is too high and exceeds the sealing temperature, the cylinder drives the trapezoidal block to move. The inclined surface of the trapezoidal block pushes the pulley, the pulley pushes the ejector frame, and the ejector frame pushes the packaging bag. At the same time, gas is sprayed out through the ventilation channel, causing the packaging bag to fall off automatically, avoiding damage to the packaging caused by excessive sealing by the heat sealing strip.

[0019] 2. By setting up a gathering component, the food in the packaged bag is gathered inward by using a bidirectional lead screw to drive the pressure plates on both sides. This ensures that the packaging bag has suitable corner positions for sealing. At the same time, the gathering component enables the device to adapt to vacuum packaging of irregularly shaped objects without the need for manual operation, thereby improving the adaptability of the device.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] In the attached diagram:

[0022] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the sealing cap of this utility model;

[0024] Figure 3 This is a schematic internal sectional view of the overall structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the vacuum packaging table of this utility model;

[0026] Figure 5 This is a schematic diagram showing the disassembly and assembly of the internal structure of this utility model;

[0027] Figure 6 This utility model Figure 5 Enlarged diagram of point A in the middle.

[0028] In the diagram: 10. Vacuum packaging table; 11. Indication panel; 12. Air pump; 13. Air pipe; 14. Cylinder; 15. Sealing cover; 16. Heat sealing strip; 17. Ventilation channel; 18. Vacuum assembly; 19. Pressure plate; 20. Limiting strip; 21. Temperature sensor; 22. Limiting groove; 23. Locking hole; 24. Divider box; 25. Slide groove; 26. Ejection frame; 27. Limiting post; 28. Motor; 29. ​​Two-way lead screw; 30. Nail post; 31. Spring; 32. Trapezoidal block; 33. Pulley. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0030] A vacuum packaging device, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, including

[0031] A vacuum packaging table 10 is provided, with a prompt panel 11 installed on one side of the vacuum packaging table 10, and a sealing cover 15 is hinged to the top of the vacuum packaging table 10 via a conversion rod.

[0032] The gathering assembly is movably mounted on the vacuum packaging table 10. The gathering assembly includes a pressure plate 19, a limiting strip 20, and a bidirectional lead screw 29. The bidirectional lead screw 29 is rotatably mounted at the top center of the vacuum packaging table 10. There are two pressure plates 19 symmetrically arranged, and the two pressure plates 19 are threadedly engaged with the two ends of the bidirectional lead screw 29. There are four limiting strips 20, and each pair of limiting strips 20 are respectively positioned at the two ends of the pressure plate 19.

[0033] The demolding assembly is movably disposed between the vacuum packaging table 10 and the sealing cover 15. The demolding assembly includes an air pump 12, an ejector frame 26, a trapezoidal block 32, and a pulley 33. The air pump 12 is fixedly disposed on one side of the vacuum packaging table 10 and communicates with the sealing cover 15. The ejector frame 26 is movably disposed on the vacuum packaging table 10. The bottom surface of one side of the ejector frame 26 is hinged to the pulley 33 through a hinge seat. The trapezoidal block 32 is slidably disposed below the pulley 33.

[0034] Specifically, each pair of heat-pressing strips 16 is respectively bonded and fixed to the side of the sealing cover 15 facing the air extraction chamber and the side of the air extraction chamber facing the sealing cover 15. The heat-pressing strips 16 can heat up when energized. The air extraction assembly 18 can extract the gas inside the packaging bag. The air extraction assembly 18 consists of an air extraction pump and multiple air extraction pipes. One end of the air extraction pipe is connected to the air extraction port of the air extraction pump, and the other end of the air extraction pipe is connected to the air extraction chamber. The air extraction pump can be a VBY micro vacuum pump. When in use, the gathering assembly gathers the object inside the packaging bag inward, so that the two ends of the packaging bag have edges for sealing. A pair of heat-pressing strips 16 are clamped at the edge of the packaging bag near the opening. After the packaging bag in the air extraction chamber is evacuated, the heat-pressing strips 16 are energized and heated to melt and bond the opening end of the packaging bag. Then, the demolding assembly helps the packaging bag to fall off.

[0035] It is worth noting that the vacuum chamber, heat-pressing strip 16, vacuum packaging table 10, indicator panel 11, sealing cover 15 and conversion rod used here are all described in detail in a prior art vacuum packaging device (CN214524630U). In the use of this device, only structural specifications need to be adapted, so they will not be described in detail in this device.

[0036] like Figure 1 and Figure 2 As shown, a cylinder 14 is fixedly installed on one side of the vacuum packaging table 10. The cylinder 14 is located directly above the air pump 12. An air pipe 13 is connected between the air pump 12 and the cylinder 14. There are three air pipes 13. Two other air pipes 13 are symmetrically arranged between the air pump 12 and the sealing cover 15.

[0037] like Figure 1 , Figure 2 and Figure 3 As shown, the vacuum packaging table 10 is equipped with an air extraction component 18 inside. The indicator panel 11 is electrically connected to the air extraction component 18. Two heat-pressing strips 16 are symmetrically arranged on the bottom surface of the sealing cover 15. There are six heat-pressing strips 16. The other four sets of heat-pressing strips 16 are arranged in an array on the top surface of the vacuum packaging table 10. The indicator panel 11 is electrically connected to the air pump 12, the cylinder 14, the air extraction component 18 and the six heat-pressing strips 16.

[0038] like Figure 2 and Figure 4 As shown, two rows of ventilation channels 17 are symmetrically opened on the sealing cover 15. The ventilation channels 17 are connected to the air pump 12 through the air pipe 13. Four temperature sensors 21 are arrayed on the vacuum packaging table 10. The temperature sensors 21 are correspondingly set on one side of the hot pressing strip 16. The indicator panel 11 is electrically connected to the temperature sensors 21. The temperature sensors 21 are electrically connected to the air pump 12 and the cylinder 14.

[0039] The work plan is as follows: the ventilation channel 17 is an irregularly shaped channel, with a longitudinal cross-section resembling an inverted L-shape. The ventilation channel 17 located on one side of the heat-sealing strip 16 is multi-hole, while the channel connecting the ventilation channel 17 to the air pipe 13 is a single-hole. During use, the operator manually aligns the sealing cap 15 with the vacuum packaging table 10, clamps the bag requiring vacuum packaging between them, and then controls the vacuum pump component 18 to vacuum the packaging bag via the indicator panel 11. The two corresponding heat-sealing strips 16 then heat-seal the edges of the packaging bag. Temperature transmission... The sensor 21 detects the hot pressing temperature of the hot pressing strip 16 in real time. When the heating temperature of the hot pressing strip 16 exceeds the suitable sealing temperature of the packaging bag, the temperature sensor 21 transmits a signal to the prompt panel 11. The prompt panel 11 controls the air pump 12 to deliver gas. The air pump 12 delivers gas to the corresponding cylinder 14 and the vent 17 through three connected air pipes 13. The gas is discharged through the vent 17, causing the packaging bag on the sealing cap 15 side to fall off. At the same time, the cylinder 14 drives the demolding component to push out, pushing the packaging bag on the vacuum packaging table 10 off, thereby completing the demolding process on both sides of the packaging bag.

[0040] like Figure 4 , Figure 5 and Figure 6 As shown, the vacuum packaging table 10 has four corners with limit grooves 22 and a card hole 23 on it. The card hole 23 is located at the center of one pair of limit grooves 22. A limit post 27 is fixedly installed at each of the four corners of the bottom surface of the ejector frame 26. The limit post 27 slides in the limit groove 22. The hinge and pulley 33 both move through the card hole 23. The pulley 33 slides against the inclined surface of the trapezoidal block 32.

[0041] like Figure 5 As shown, a partition box 24 is fixedly installed at the top center of the vacuum packaging table 10. Slide grooves 25 are opened on both sides of the partition box 24. A motor 28 is fixedly installed inside the partition box 24. The output end of the motor 28 is connected to one end of the bidirectional lead screw 29. The indicator panel 11 is electrically connected to the motor 28. The pressure plate 19 slides between the two slide grooves 25 and the partition box 24.

[0042] like Figure 6 As shown, a nail post 30 is fixedly installed at each end of the bottom surface of the limiting strip 20, and four through holes are arrayed on the top surface of the pressure plate 19. A spring 31 is fixedly installed between the nail post 30 and the through holes, and the nail post 30 is elastically connected to the pressure plate 19 through the spring 31.

[0043] The working principle is as follows: the pressure plate 19 consists of a cross-shaped square plate and two U-shaped square plates. The two U-shaped square plates are symmetrically arranged on both sides of the cross-shaped square plate. The perforations correspond to the shape of the top column 30. The top column 30 moves up and down in the perforations. When in use, the two ends of the packaging bag are placed between the limiting strip 20 and the U-shaped square plates respectively. The elasticity of the pin 30 and the spring 31 is used to elastically clamp the packaging bag. Then, the motor 28 is started by controlling the prompt panel 11. The motor 28 drives the rotation of the bidirectional screw 29, so that the pressure plates 19 at both ends of the bidirectional screw 29 move relative to each other. The two pressure plates 19 moving relative to each other squeeze the object in the packaging bag. At this time, the part of the packaging bag exposed outside the pressure plate 19 and the limiting strip 20 is placed flat on the heat-pressing strip 16 of the vacuum packaging table 10. At this time, the manual sealing cover 15 is sealed and closed with the vacuum packaging table 10. Then, the vacuuming component 18 is controlled by the prompt panel 11 to draw a vacuum. The heat-pressing strips 16 on the upper and lower sides are heated together to form a vacuum seal.

[0044] It is worth noting that the indicator panel 11 is equipped with a pressure gauge for indicating the air pressure inside the vacuum chamber, multiple control buttons, multiple LED screens for indicating the opening and closing of the buttons, and multiple switch indicator lights. The multiple control buttons are electrically connected to multiple power modules of the vacuum packaging device.

[0045] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A vacuum packaging device, characterized in that, include A vacuum packaging table (10) is provided with a prompt panel (11) on one side of the vacuum packaging table (10), and a sealing cover (15) is hinged to the top of the vacuum packaging table (10) via a conversion rod. A gathering assembly is movably mounted on a vacuum packaging table (10). The gathering assembly includes a pressure plate (19), a limiting strip (20), and a bidirectional screw (29). The bidirectional screw (29) is rotatably mounted at the top center of the vacuum packaging table (10). Two pressure plates (19) are symmetrically arranged, and the two pressure plates (19) are threadedly fitted to the two ends of the bidirectional screw (29). Four limiting strips (20) are provided, and each pair of limiting strips (20) are respectively positioned at the two ends of the pressure plate (19). A demolding assembly is movably disposed between a vacuum packaging table (10) and a sealing cover (15). The demolding assembly includes an air pump (12), an ejector frame (26), a trapezoidal block (32), and a pulley (33). The air pump (12) is fixedly disposed on one side of the vacuum packaging table (10) and is connected to the sealing cover (15). The ejector frame (26) is movably disposed on the vacuum packaging table (10). The bottom surface of one side of the ejector frame (26) is hinged to the pulley (33) through a hinge seat. The trapezoidal block (32) is slidably disposed below the pulley (33).

2. The vacuum packaging device according to claim 1, characterized in that, A cylinder (14) is fixedly installed on one side of the vacuum packaging table (10). The cylinder (14) is located directly above the air pump (12). An air pipe (13) is connected between the air pump (12) and the cylinder (14). There are three air pipes (13). Two other air pipes (13) are symmetrically arranged between the air pump (12) and the sealing cover (15).

3. A vacuum packaging device according to claim 2, characterized in that, The vacuum packaging table (10) is equipped with an air extraction assembly (18) inside. The indicator panel (11) is electrically connected to the air extraction assembly (18). Two heat-pressing strips (16) are symmetrically arranged on the bottom surface of the sealing cover (15). There are six heat-pressing strips (16). The other four heat-pressing strips (16) are arranged in an array on the top surface of the vacuum packaging table (10). The indicator panel (11) is electrically connected to the air pump (12), the cylinder (14), the air extraction assembly (18), and the six heat-pressing strips (16).

4. A vacuum packaging device according to claim 3, characterized in that, The sealing cover (15) has two rows of venting channels (17) symmetrically arranged. The venting channels (17) are connected to the air pump (12) through the air pipe (13). The vacuum packaging table (10) is arranged with four temperature sensors (21) in an array. The temperature sensors (21) are respectively arranged on one side of the hot pressing strip (16). The indicator panel (11) is electrically connected to the temperature sensors (21). The temperature sensors (21) are electrically connected to the air pump (12) and the cylinder (14).

5. A vacuum packaging device according to claim 1, characterized in that, The vacuum packaging table (10) has four corners with limiting grooves (22) and a card hole (23) on it. The card hole (23) is located at the center of one of the pair of limiting grooves (22). A limiting post (27) is fixedly installed at each of the four corners of the bottom surface of the ejection frame (26). The limiting post (27) slides in the limiting groove (22). The hinge and the pulley (33) both move through the card hole (23). The pulley (33) slides against the inclined surface of the trapezoidal block (32).

6. A vacuum packaging device according to claim 5, characterized in that, A partition box (24) is fixedly installed at the top center of the vacuum packaging table (10). Slide grooves (25) are provided on both sides of the partition box (24). A motor (28) is fixedly installed inside the partition box (24). The output end of the motor (28) is connected to one end of a bidirectional lead screw (29). The indicator panel (11) is electrically connected to the motor (28). The pressure plate (19) slides between the two slide grooves (25) and the partition box (24).

7. A vacuum packaging device according to claim 6, characterized in that, A nail post (30) is fixedly installed at each end of the bottom surface of the limiting strip (20). Four through holes are arrayed on the top surface of the pressure plate (19). A spring (31) is fixedly installed between the nail post (30) and the through hole. The nail post (30) is elastically connected to the pressure plate (19) through the spring (31).

Images