A sealing mechanism for a sealing machine

Abstract

This invention provides a sealing mechanism for a sealing machine. It solves the problems of existing sealing machines that require heating the base with heating plates before pressing it against the sides of the product to seal, resulting in low heating efficiency, slow response, and long waiting times for both heating and cooling. This invention uses two ceramic heating plates pressed against the inner wall of the belt to heat and seal the product in the clamping position. This results in a faster heating response, quicker temperature rise, and more uniform heat distribution. Furthermore, the aluminum base does not participate in the heat conduction process; the sealing is achieved directly through the ceramic heating plates, effectively improving sealing efficiency. Compared to traditional copper bases, it also significantly reduces the overall weight of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of sealing machine technology, and in particular to a sealing mechanism for a sealing machine. Background Technology

[0002] A sealing machine is a machine that seals containers filled with packaging materials. After the product is put into the packaging container, in order to preserve the product, maintain the product quality, and prevent product loss, the packaging container needs to be sealed. This operation is completed on a sealing machine.

[0003] Patent application number 201320351396.5 discloses a continuous sealing machine, which includes a lifting and adjusting device on the frame of the sealing machine. When it is necessary to adjust the distance between the sealing plane and the conveyor table, the left and right adjusting rods can be rotated to move the slider up and down in the slide groove. The slider drives the machine to adjust the height. When the machine reaches the maximum adjustment range, the distance between the conveyor table and the sealing device can be further adjusted by adjusting the position of the conveyor table. After adjustment, the center distance between the main and driven sprockets changes. Without replacing the chain, the sprocket is tensioned by simply changing the position of the tension wheel on the transmission chain, so that the conveyor table can continue to work.

[0004] In actual use, the base needs to be heated by a heating plate set on the base and then pressed against the two sides of the product to achieve sealing. The heating efficiency is low and the response is slow. It takes a long time to heat up and cool down during use. There are areas for improvement in the existing technology. Summary of the Invention

[0005] This utility model addresses the aforementioned shortcomings by providing a sealing mechanism for a sealing machine. The mechanism includes two drive wheels and driven wheels rotatably disposed within the sealing machine. The two drive wheels and driven wheels are respectively arranged opposite to each other. Belts are fitted onto the drive wheels and driven wheels, with the two belts located on the same plane and one side of each belt abutting against each other. A clamping position for holding and moving a product is formed between the two belts. A base is provided on each side of the clamping position, located within the space enclosed by the belts. A ceramic heating plate for heating is fixedly mounted on the side of the base facing the clamping position, and the ceramic heating plate abuts against the inner wall of the belts. The bases are mounted inside the sealing machine via a mounting plate.

[0006] Preferably, the base is movably mounted on the mounting plate via two connecting rods. A limiting block is fixedly mounted on the end of the connecting rod away from the base. The limiting block and the base are located on opposite sides of the mounting plate. A spring is sleeved on the connecting rod to drive the base to move toward the clamping position.

[0007] Preferably, a pressure plate is provided between the limiting block and the mounting plate, and the connecting rod passes through the pressure plate.

[0008] Preferably, the mounting plate has two bosses for positioning the springs, the center of which is on the same axis as the center of the pressure plate, and the connecting rod passes through the bosses.

[0009] Preferably, a protrusion for positioning the spring is fixedly provided at the end of the connecting rod away from the aforementioned limiting block, and the protrusion is fixedly provided on the base.

[0010] Preferably, the end of the protrusion facing the aforementioned boss has a groove for engaging the spring.

[0011] Preferably, the center lines of the limiting block, mounting plate, spring, connecting rod, and protrusion coincide.

[0012] Preferably, the base is made of aluminum.

[0013] Compared with existing technologies, this utility model uses two ceramic heating plates pressed against the inner wall of the belt to heat and seal the product in the clamping position. The heating response is faster, the temperature can be raised quickly, and the heat distribution is more uniform. Furthermore, since the aluminum base does not participate in the heat conduction process, the heating and sealing are achieved directly through the ceramic heating plates, which effectively improves the sealing efficiency. Compared with the traditional copper base, it effectively reduces the overall weight of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model after installation; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a cross-sectional view of the present invention; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0015] The markings in the diagram are: 1. Drive wheel; 2. Driven wheel; 3. Belt; 4. Clamping position; 5. Base; 6. Ceramic heating plate; 7. Mounting plate; 8. Connecting rod; 9. Limiting block; 10. Spring; 11. Pressure plate; 12. Boss; 13. Protrusion; 14. Slot. Detailed Implementation

[0016] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings: like Figure 1-5As shown, a sealing mechanism for a sealing machine includes two drive wheels 1 and driven wheels 2 rotatably disposed within the sealing machine. The two drive wheels 1 and driven wheels 2 are respectively arranged opposite to each other. A belt 3 is fitted onto each drive wheel 1 and driven wheel 2. The two belts 3 are located on the same plane, with one side of each belt 3 touching each other, forming a clamping position 4 between the two belts 3 for clamping and moving the product. A base 5 is provided on each side of the clamping position 4. The base 5 is located within the space enclosed by the belts 3, and a ceramic heating plate 6 for heating is fixedly disposed on the side of the base 5 facing the clamping position 4. The ceramic heating plate 6 is fixed to the base 5 with a high-temperature resistant adhesive and abuts against the inner wall of the belt 3. The surface of the ceramic heating plate 6 is coated with a glaze layer, making the surface of the ceramic heating plate 6 smoother and improving the smoothness and wear resistance during contact with the belt 3. The base 5 is disposed within the sealing machine via a mounting plate 7, and the base 5 is made of aluminum. The product on the clamping position 4 is heated and sealed by pressing two ceramic heating plates 6 against the inner wall of the belt 3. The heating response is faster, the temperature can be raised quickly, and the heat distribution is more uniform. The aluminum base 5 does not participate in the heat conduction process, and the heating and sealing are achieved directly through the ceramic heating plates 6, which effectively improves the sealing efficiency. Compared with the traditional copper base 5, the overall weight of the equipment is effectively reduced.

[0017] The base 5 is movably mounted on the mounting plate 7 via two connecting rods 8. A limiting block 9 is fixedly mounted on the end of each connecting rod 8 away from the base 5. The limiting block 9 and the base 5 are located on opposite sides of the mounting plate 7. A spring 10, which drives the base 5 to move towards the clamping position 4, is sleeved on the connecting rod 8. A pressure plate 11 is provided between the limiting block 9 and the mounting plate 7, and the connecting rod 8 passes through the pressure plate 11. Two bosses 12 for positioning the spring 10 are provided on the mounting plate 7. The center of each boss 12 is on the same axis as the center of the pressure plate 11, and the connecting rod 8 passes through each boss 12. A protrusion 13 for positioning the spring 10 is fixedly mounted on the end of each connecting rod 8 away from the limiting block 9, and this protrusion 13 is fixedly mounted on the base 5. The protrusion 13 has a groove 14 at one end facing the protrusion 12 for engaging the spring 10. Both ends of the spring 10 are respectively fitted onto the groove 14 and the protrusion 12, ensuring greater stability during use and preventing displacement of the spring 10. This also prevents inconsistent sealing results due to uneven pressure at both ends of the base 5, resulting in a more stable sealing effect. The center lines of the limiting block 9, mounting plate 7, spring 10, connecting rod 8, and protrusion 13 coincide. The base 5 is movably mounted on the mounting plate 7 via two sets of connecting rods 8, and is driven by the spring 10 to move towards the clamping position 4. This ensures that the ceramic heating plate 6 on the base 5 is always pressed against the inner wall of the belt 3, clamping the product. When the product thickness is large, the rotating belt 3 moves the product into the clamping position 4, squeezing the base 5 away from the clamping position 4, compressing the spring 10. This allows for heating and sealing of products of varying thicknesses.

[0018] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications to the specification derived therefrom are still within the protection scope of this utility model.

Claims

1. A sealing mechanism for a sealing machine, characterized in that, The machine includes two drive wheels (1) and driven wheels (2) that are rotatably mounted inside the sealing machine. The two drive wheels (1) and driven wheels (2) are respectively arranged opposite to each other. A belt (3) is fitted on the drive wheel (1) and driven wheel (2). The two belts (3) are located on the same plane and one side of the two belts (3) is close to each other. A clamping position (4) for clamping and moving the product is formed between the two belts (3). A base (5) is provided on each side of the clamping position (4). The base (5) is located in the space enclosed by the belts (3). A ceramic heating plate (6) for heating is fixedly provided on the side of the base (5) facing the clamping position (4). The ceramic heating plate (6) abuts against the inner wall of the belt (3). The base (5) is mounted inside the sealing machine through a mounting plate (7).

2. The sealing mechanism of a sealing machine according to claim 1, characterized in that, The base (5) is movably mounted on the mounting plate (7) via two connecting rods (8). A limiting block (9) is fixedly provided at one end of the connecting rod (8) away from the base (5). The limiting block (9) and the base (5) are located on opposite sides of the mounting plate (7). A spring (10) is sleeved on the connecting rod (8) to drive the base (5) to move toward the clamping position (4).

3. The sealing mechanism of a sealing machine according to claim 2, characterized in that, A pressure plate (11) is provided between the limiting block (9) and the mounting plate (7), and the connecting rod (8) passes through the pressure plate (11).

4. The sealing mechanism of a sealing machine according to claim 3, characterized in that, The mounting plate (7) has two bosses (12) for positioning springs (10). The center of the bosses (12) is on the same axis as the center of the pressure plate (11), and the connecting rod (8) passes through the bosses (12).

5. The sealing mechanism of a sealing machine according to claim 4, characterized in that, The connecting rod (8) is fixedly provided with a protrusion (13) for positioning spring (10) at one end away from the limiting block (9), and the protrusion (13) is fixedly provided on the base (5).

6. The sealing mechanism of a sealing machine according to claim 5, characterized in that, The protrusion (13) has a groove (14) for engaging the spring (10) at one end facing the protrusion (12).

7. The sealing mechanism of a sealing machine according to claim 5, characterized in that, The center lines of the limiting block (9), mounting plate (7), spring (10), connecting rod (8) and protrusion (13) coincide.

8. The sealing mechanism of a sealing machine according to claim 1, characterized in that, The base (5) is made of aluminum.

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