A vacuum packaging machine for food preservation

Abstract

This utility model relates to the field of food vacuum packaging technology, and more particularly to a vacuum packaging machine for food preservation. The vacuum packaging machine for food preservation includes: a base, a carrying plate, an elastic component, a limiting component, a suction nozzle, and a driving component. The top of the base is fixedly connected to the packaging machine body. A placement plate is fixedly connected to the top of the base away from the packaging machine body. A sealing gasket is provided at the top of the placement plate. The carrying plate is fixedly connected to the top of the front side of the packaging machine body. An electric push rod is installed at the top of the carrying plate. A force-bearing plate is fixedly connected to the driving end of the electric push rod. Multiple sliding rods are slidably connected to the inner wall of the force-bearing plate. A pressure plate is fixedly connected to the bottom end of the multiple sliding rods. This utility model reduces the probability of leaks and incomplete seals, improves packaging sealing, ensures food preservation, extends the service life of components such as heat-sealing strips, reduces equipment maintenance costs and replacement frequency, and improves the ease of operation when moving and adjusting the position of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of food vacuum packaging technology, and in particular to a vacuum packaging machine for food preservation. Background Technology

[0002] Food refers to substances that can be consumed or drunk by humans, encompassing various natural ingredients and processed products, and is a basic substance for maintaining life. Vacuum packaging machines are used for preservation because they can significantly reduce the oxygen content by removing and sealing the air inside the packaging bag, thereby inhibiting the growth of microorganisms, delaying food oxidation and spoilage, and preventing moisture loss and odor contamination. This significantly extends the shelf life of food and allows it to maintain good quality and taste during storage, transportation, and sales.

[0003] Most vacuum packaging machines place the sealed end of the packaging bag between the heat sealing strip and the sealing gasket, and outside one end of the suction pipe. Then, the vacuum pump is started to evacuate air. After evacuation, the packaging bag is pulled outward to ensure that the suction pipe does not contact the heat sealing strip during the sealing process. Then, mechanical force is applied directly downward to make the upper pressure plate bring the heat sealing strip into contact with the sealed end of the packaging bag, and then the bag is sealed. However, when there are wrinkles or thickness differences at the opening of the packaging bag, it is easy to cause uneven local stress. For example, thin areas may be overheated and break, while thick areas may not be pressed tightly, resulting in poor sealing. This increases the probability of leaks or incomplete sealing, and the heat sealing strip may be locally worn due to rigid compression, reducing the service life of the components.

[0004] Therefore, it is necessary to provide a new vacuum packaging machine for food preservation to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a vacuum packaging machine for food preservation.

[0006] This utility model provides a vacuum packaging machine for food preservation, comprising: a base, a carrying plate, an elastic component, a limiting component, a suction nozzle, and a driving component. The top of the base is fixedly connected to the packaging machine body. A placement plate is fixedly connected to the top of the base away from the packaging machine body. A sealing gasket is provided at the top of the placement plate. The carrying plate is fixedly connected to the top of the front side of the packaging machine body. An electric push rod is installed at the top of the carrying plate. A force-bearing plate is fixedly connected to the driving end of the electric push rod. Multiple sliding rods are slidably connected to the inner wall of the force-bearing plate, and the bottom ends of the multiple sliding rods are fixedly connected to... The machine has a pressure plate with a heat-sealing strip fixedly connected to its bottom. A spring component is installed on the outside of the sliding rod. A limit component is installed on the rear side of the pressure plate. A suction nozzle is slidably connected to the inner wall of the bottom front side of the packaging machine body. The initial position of the suction nozzle is between the heat-sealing strip and the sealing gasket. A limit block is fixedly connected to the rear end of the suction nozzle. A hose is installed on the side of the limit block away from the suction nozzle. A vacuum pump is installed inside the rear side of the packaging machine body. A connecting column is fixedly connected to the output end of the vacuum pump. A sliding chamber is opened inside the bottom front side of the packaging machine body. A drive component is installed inside the sliding chamber.

[0007] Preferably, the elastic component includes a spring, which is sleeved on the outside of the sliding rod, and a stop plate is fixedly connected to the top of the sliding rod.

[0008] Preferably, the limiting component includes multiple sliding blocks, the front ends of the multiple sliding blocks are fixedly connected to the rear ends of the pressure plate, and multiple sliding grooves are provided on the front side of the packaging machine body.

[0009] Preferably, the drive assembly includes a motor, a gear is fixedly connected to the drive end of the motor, and a rack plate is fixedly connected to one side of the limiting block, with the gear and rack plate being meshed.

[0010] Preferably, the heat sealing strip comes into contact with the sealing gasket during operation, and a handle is installed at the top of the packaging machine body.

[0011] Preferably, the end of the hose away from the limiting block is fixedly connected to the end of the connecting column away from the vacuum pump, the hose moves inside the sliding chamber, and the outside of the limiting block is slidably connected to the inside of the sliding chamber.

[0012] Preferably, the top end of the spring is fixedly connected to the bottom end of the force plate, the bottom end of the spring is fixedly connected to the top end of the pressure plate, and the bottom end of the baffle is in contact with the top end of the force plate.

[0013] Preferably, the inner wall of the sliding groove and the outer wall of the sliding block are slidably connected.

[0014] Compared with related technologies, the vacuum packaging machine for food preservation provided by this utility model has the following beneficial effects: Improved sealing uniformity and sealing performance: By setting an elastic component composed of springs on the outside of the sliding rod, when there are wrinkles or thickness differences in the packaging bag seal, the springs can use their own elasticity to expand and contract, allowing the heat sealing strip to adaptively adjust its fit to the packaging bag, making the force on each part of the seal more uniform. This effectively solves the problems of overheating and breaking in thin areas and insufficient sealing in thick areas caused by uneven force in traditional methods, reducing the probability of leaks and incomplete sealing, improving the sealing performance of the packaging, and ensuring the freshness of food.

[0015] Extended component lifespan: Due to the elastic cushioning of the elastic component, the heat seal strip does not rigidly compress the packaging bag, reducing wear caused by excessive local stress on the heat seal strip. Compared with the traditional rigid connection heat sealing structure, it can extend the service life of components such as the heat seal strip, reducing equipment maintenance costs and replacement frequency.

[0016] Flexible nozzle position adjustment: With the help of the motor, gears, rack and pinion plate and limit block inside the sliding chamber, the nozzle position can be flexibly adjusted during the vacuuming process. This allows the nozzle to be accurately aligned with the opening of the packaging bag for air extraction. It can also be disengaged from the opening of the packaging bag at the appropriate time to avoid interference from the nozzle during heat sealing. This makes the connection between the air extraction and heat sealing processes more reasonable and improves the smoothness of the overall packaging process and packaging quality.

[0017] Optimized ease of operation: A handle is set on the top of the packaging machine body, which makes it easy for staff to move the equipment as needed. Compared with traditional packaging machines without convenient moving structure, it improves the ease of operation when moving and adjusting the position of the equipment, and is more suitable for the layout and usage needs of different work scenarios. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of a vacuum packaging machine for food preservation provided by this utility model; Figure 2 for Figure 1 Enlarged view of point A in the image; Figure 3 for Figure 1 Enlarged view of point B in the image; Figure 4 for Figure 1 The diagram shows the structure of the limiting block.

[0019] The following are the labels in the diagram: 1. Base; 2. Packaging machine body; 3. Placement plate; 4. Sealing gasket; 5. Carrying plate; 6. Electric push rod; 7. Force plate; 8. Sliding rod; 9. Pressure plate; 10. Heat sealing strip; 11. Spring; 12. Baffle; 13. Sliding groove; 14. Sliding block; 15. Handle; 16. Suction nozzle; 17. Limiting block; 18. Hose; 19. Vacuum pump; 20. Connecting column; 21. Sliding chamber; 22. Motor; 23. Gear; 24. Rack plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0022] Please see Figures 1 to 4 A vacuum packaging machine for food preservation includes: a base 1, a packaging machine body 2 fixedly connected to the top of the base 1, the packaging machine body 2 integrating the core functional components of the equipment, serving as the main frame for the installation and operation of various components, a placement plate 3 fixedly connected to the top of the base 1 away from the packaging machine body 2, the placement plate 3 providing a flat bearing surface for placing packaging bags, facilitating the operator to place the items to be packaged, and a sealing gasket 4 provided at the top of the placement plate 3.

[0023] The carrying plate 5 is fixedly connected to the top front side of the packaging machine body 2. An electric push rod 6 is installed on the top of the carrying plate 5. The carrying plate 5 provides a stable mounting platform for the electric push rod 6, ensuring that the electric push rod 6 can remain stable during operation. The electric push rod 6 serves as a power source, providing stable driving force. A force plate 7 is fixedly connected to the drive end of the electric push rod 6. When the electric push rod 6 is started, it will drive the force plate 7 to move up and down. Multiple sliding rods 8 are slidably connected to the inner wall of the force plate 7. The sliding rods 8 can slide flexibly on the inner wall of the force plate 7. A pressure plate 9 is fixedly connected to the bottom end of the multiple sliding rods 8. The movement of the sliding rods 8 will synchronously drive the pressure plate 9 to move, providing guidance and support for the movement of the pressure plate 9. A heat sealing strip 10 is fixedly connected to the bottom end of the pressure plate 9. The pressure plate 9 can transmit power to the heat sealing strip 10, enabling the heat sealing strip 10 to accurately contact the packaging bag. During operation, the heat sealing strip 10 contacts the sealing gasket 4, and the heat sealing operation of the packaging bag is achieved through the cooperation of the two.

[0024] An elastic component is installed on the outside of the sliding rod 8. The elastic component provides elastic cushioning during the heat sealing process. The elastic component includes a spring 11, which is sleeved on the outside of the sliding rod 8. The spring 11 has good elastic deformation capability. A baffle 12 is fixedly connected to the top of the sliding rod 8. The baffle 12 can limit the sliding of the sliding rod 8 and prevent the sliding rod 8 from falling out of the force plate 7. The top of the spring 11 is fixedly connected to the bottom of the force plate 7, and the bottom of the spring 11 is fixedly connected to the top of the pressure plate 9. This connection method allows the spring 11 to transmit elastic force between the force plate 7 and the pressure plate 9. When the force plate 7 moves down, the spring 11 is compressed, generating an upward elastic force. The bottom of the baffle 12 contacts the top of the force plate 7, further strengthening the limiting effect on the sliding rod 8.

[0025] A limiting component is installed on the rear side of the pressure plate 9. The limiting component ensures that the pressure plate 9 maintains a stable trajectory during up and down movement. The limiting component includes multiple sliding blocks 14. The front end of the multiple sliding blocks 14 is fixedly connected to the rear end of the pressure plate 9. The sliding blocks 14 move synchronously with the pressure plate 9. Multiple sliding grooves 13 are opened on the front side of the packaging machine body 2. The sliding grooves 13 provide space for the sliding blocks 14 to slide. The inner wall of the sliding groove 13 is slidably connected to the outer wall of the sliding block 14. This sliding cooperation makes the movement of the pressure plate 9 more stable and avoids deviation. A handle 15 is installed on the top of the packaging machine body 2. The handle 15 makes it convenient for operators to carry and move the equipment, improving the portability of the equipment.

[0026] A suction nozzle 16 is slidably connected to the inner wall of the front bottom end of the packaging machine body 2. The suction nozzle 16 can slide on the inner wall of the packaging machine body 2 to adjust its position. The initial position of the suction nozzle 16 is between the heat sealing strip 10 and the sealing gasket 4. This initial position makes it easy for the suction nozzle 16 to be aligned with the opening of the packaging bag for suction operation. A limit block 17 is fixedly connected to the rear end of the suction nozzle 16. The limit block 17 can limit the sliding range of the suction nozzle 16 and prevent the suction nozzle 16 from sliding out of the packaging machine body 2. A flexible hose 18 is installed on the side of the limit block 17 away from the suction nozzle 16. The flexible hose 18 has good flexibility and can bend as the limit block 17 moves. A vacuum pump 19 is installed inside the rear side of the packaging machine body 2. The vacuum pump 19 is the core component for generating a vacuum environment. The vacuum pump 19 is equipped with a connecting post 20 fixedly connected to its output end. The connecting post 20 provides an interface for connecting the vacuum pump 19 and the hose 18. The end of the hose 18 away from the limiting block 17 is fixedly connected to the end of the connecting post 20 away from the vacuum pump 19, so that the vacuum pump 19 can be connected to the suction nozzle 16 through the connecting post 20 and the hose 18. A sliding chamber 21 is provided inside the front bottom end of the packaging machine body 2. The sliding chamber 21 provides space for the movement of the limiting block 17 and the hose 18. The hose 18 moves inside the sliding chamber 21, ensuring that the hose 18 is not obstructed when it moves with the limiting block 17. The outside of the limiting block 17 is slidably connected to the inside of the sliding chamber 21, allowing the limiting block 17 to slide smoothly inside the sliding chamber 21.

[0027] The drive assembly is installed inside the sliding chamber 21. The drive assembly provides power for the movement of the suction nozzle 16. The drive assembly includes a motor 22, which can convert electrical energy into mechanical energy to provide continuous driving force. A gear 23 is fixedly connected to the drive end of the motor 22. When the motor 22 starts, it drives the gear 23 to rotate. A rack plate 24 is fixedly connected to one side of the limiting block 17. The teeth on the rack plate 24 match the gear 23. The gear 23 and the rack plate 24 are meshed. When the gear 23 rotates, it drives the rack plate 24 to move through the meshing between the teeth, thereby driving the limiting block 17 and the suction nozzle 16 to slide.

[0028] The working principle of the vacuum packaging machine for food preservation provided by this utility model is as follows: To perform vacuum packaging of food, first place the food to be packaged into a packaging bag. Position the sealed end of the bag between the heat-sealing strip 10 on the front of the packaging machine body 2 and the sealing gasket 4 on the top plate 3 of the base 1. Simultaneously, initially position the suction nozzle 16 between the heat-sealing strip 10 and the sealing gasket 4, aligning it with the opening of the packaging bag. After starting the equipment, the vacuum pump 19 inside the rear of the packaging machine body 2 begins operation. The vacuum pump 19 operates through the connecting column 20 and the hose 18, using the suction nozzle 16 to extract air from the packaging bag, gradually creating a vacuum environment inside the bag. During the vacuuming process, once a vacuum environment is established inside the packaging bag, the position of the suction nozzle 16 can be adjusted using the drive assembly within the sliding chamber 21. The motor 22 starts, driving the gear 23 to rotate. The gear 23 meshes with the rack plate 24, causing the rack plate 24 to move the limiting block 17. This allows the suction nozzle 16 to slide along the inner wall of the bottom front end of the packaging machine body 2, disengaging it from the opening of the packaging bag. Simultaneously, the electric push rod 6 starts, its drive end pushing the force plate 7 downwards. As the force plate 7 moves downwards, it causes the sliding rod 8 to slide along its inner wall, compressing the spring 11 fitted outside the sliding rod 8. Simultaneously, the pressure plate 9 at the bottom of the sliding rod 8 moves downwards, and the sliding block 14 at the rear end of the pressure plate 9 slides within the sliding groove 13 on the front side of the packaging machine body 2, acting as a limiting and guiding element, allowing the pressure plate 9 to move smoothly downwards. As the pressure plate 9 continues to move downwards, the heat-sealing strip 10 at its bottom gradually approaches the sealing opening of the packaging bag, cooperating with the sealing gasket 4 to perform a heat-sealing operation on the packaging bag. During heat sealing, because the sliding rod 8 has an elastic component composed of springs 11, if there are wrinkles or thickness differences in the packaging bag seal, the springs 11 can elastically expand and contract to allow the heat sealing strip 10 to adaptively adjust its fit with the packaging bag, making the force on each part of the seal more even. The two work together to allow the heat sealing strip 10 to heat seal the packaging bag when the suction nozzle 16 leaves the opening of the packaging bag, and the device can be easily moved by the handle 15.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A vacuum packaging machine for food preservation, characterized in that, include: The base (1) is fixedly connected to the top of the base (1) and the packaging machine body (2) is fixedly connected to the top of the base (1) on the side away from the packaging machine body (2). A sealing gasket (4) is provided on the top of the placement plate (3). The front top of the packaging machine body (2) is fixedly connected to the loading plate (5). The top of the loading plate (5) is equipped with an electric push rod (6). The driving end of the electric push rod (6) is fixedly connected to a force plate (7). Multiple sliding rods (8) are slidably connected to the inner wall of the force plate (7). The bottom end of the multiple sliding rods (8) is fixedly connected to a pressure plate (9). The bottom end of the pressure plate (9) is fixedly connected to a heat sealing strip (10). Elastic component, an elastic component is installed on the outside of the sliding rod (8); Limiting components are installed on the rear side of the pressure plate (9); A suction nozzle (16) is slidably connected to the inner wall of the front bottom end of the packaging machine body (2). The initial position of the suction nozzle (16) is between the heat sealing strip (10) and the sealing gasket (4). A limit block (17) is fixedly connected to the rear end of the suction nozzle (16). A hose (18) is installed on the side of the limit block (17) away from the suction nozzle (16). A vacuum pump (19) is installed inside the rear side of the packaging machine body (2). A connecting column (20) is fixedly connected to the output end of the vacuum pump (19). A sliding chamber (21) is opened inside the front bottom end of the packaging machine body (2). The drive assembly is installed inside the sliding chamber (21).

2. The vacuum packaging machine for food preservation according to claim 1, characterized in that, The elastic component includes a spring (11), which is sleeved on the outside of the sliding rod (8), and a baffle (12) is fixedly connected to the top of the sliding rod (8).

3. The vacuum packaging machine for food preservation according to claim 1, characterized in that, The limiting component includes multiple sliding blocks (14), the front ends of the multiple sliding blocks (14) are fixedly connected to the rear end of the pressure plate (9), and multiple sliding grooves (13) are provided on the front side of the packaging machine body (2).

4. A vacuum packaging machine for food preservation according to claim 1, characterized in that, The drive assembly includes a motor (22), a gear (23) is fixedly connected to the drive end of the motor (22), and a rack plate (24) is fixedly connected to one side of the limiting block (17). The gear (23) and the rack plate (24) are meshed.

5. A vacuum packaging machine for food preservation according to claim 1, characterized in that, The heat seal (10) comes into contact with the sealing gasket (4) during operation, and a handle (15) is installed on the top of the packaging machine body (2).

6. A vacuum packaging machine for food preservation according to claim 1, characterized in that, The end of the hose (18) away from the limiting block (17) is fixedly connected to the end of the connecting column (20) away from the vacuum pump (19). The hose (18) moves inside the sliding chamber (21). The outside of the limiting block (17) and the inside of the sliding chamber (21) are slidably connected.

7. A vacuum packaging machine for food preservation according to claim 2, characterized in that, The top end of the spring (11) is fixedly connected to the bottom end of the force plate (7), the bottom end of the spring (11) is fixedly connected to the top end of the pressure plate (9), and the bottom end of the baffle (12) is in contact with the top end of the force plate (7).

8. A vacuum packaging machine for food preservation according to claim 3, characterized in that, The inner wall of the sliding groove (13) and the outer wall of the sliding block (14) are slidably connected.

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