Vacuumizing clamping device of bag feeding type packaging machine

Abstract

The utility model discloses a vacuumizing clamping device of a bag feeding type packaging machine, which is characterized by comprising a moving plate, the moving plate is connected with a first moving driving component, one end of the moving plate is provided with a first rack, the other end of the moving plate is provided with a second rack, the first rack is meshed with a first gear, the second rack is meshed with a second gear, and the second gear is meshed with a second rack. The first rack and the second rack face opposite directions, so that the rotation directions of the first gear and the second gear are opposite, the first gear is connected with a first rotating shaft, the second gear is connected with a second rotating shaft, the first rotating shaft can drive a first left clamping jaw to swing, a second left clamping jaw matched with the first left clamping jaw is arranged on the rack, and the second rotating shaft can drive a first right clamping jaw to swing. And a second right clamping jaw matched with the first right clamping jaw is arranged on the rack. The clamping device is simple in structure and reasonable in design, a driving structure of the clamping device is simplified, and synchronism and stability of clamping operation actions at the two ends are guaranteed.

Description

Technical Field

[0001] This utility model relates to packaging equipment, specifically to a vacuum clamping device for a bag packaging machine. Background Technology

[0002] A pre-packaging bag machine is a device used to fill packaging bags with materials, and then vacuum and heat-seal them after filling. The vacuuming mechanism requires a clamping device to hold the opening of the filled packaging bag. Traditional clamping devices require independent clamping drive structures for each clamping claw at both ends, resulting in a complex overall structure. Furthermore, the synchronization of the two clamping claws' movements is poor, affecting clamping quality. Additionally, after clamping, the bag opening may have some wrinkles, making it difficult to maintain a flat opening after heat sealing, affecting the heat-sealing quality and aesthetics of the product. Utility Model Content

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by this utility model is to provide a vacuum clamping device for a bag packaging machine to solve the above-mentioned problems.

[0004] Therefore, this utility model is implemented using the following solution:

[0005] A vacuum clamping device for a bag packaging machine is characterized by comprising: a movable plate connected to a first movable drive assembly; a first rack at one end of the movable plate and a second rack at the other end; the first rack meshes with a first gear, and the second rack meshes with a second gear; the first and second racks are oriented in opposite directions, causing the first and second gears to rotate in opposite directions; the first gear is connected to a first rotating shaft, and the second gear is connected to a second rotating shaft; the first rotating shaft can drive a first left gripper to swing; a second left gripper that cooperates with the first left gripper is provided on the frame; the second rotating shaft can drive a first right gripper to swing; and a second right gripper that cooperates with the first right gripper is provided on the frame.

[0006] The first moving drive assembly includes a first cylinder, the piston rod of which is connected to the moving plate.

[0007] The first rotating shaft is connected to one end of the first swing block. The first swing block is provided with a first strip groove. The first left gripper is provided with a first transmission pin. The first transmission pin can be slidably inserted into the first strip groove. The machine also includes a moving block. The moving block is connected to a second moving drive assembly. The moving block is hinged to one end of the transmission arm. The other end of the transmission arm is hinged to a sliding arm. The sliding arm is provided with a second strip groove. The frame has a positioning post passing through the second strip groove. One end of the first left gripper is hinged to the sliding arm. The second left gripper is integrally formed on the sliding arm.

[0008] The second moving drive assembly includes a second cylinder, the piston rod of which is connected to the moving block.

[0009] The second rotating shaft is connected to one end of the second swing block, and the first right gripper is connected to the second swing block.

[0010] Both the first left gripper and the first right gripper are provided with elastic blocks, which cooperate with the second left and right grippers to clamp the packaging bag tightly.

[0011] The vacuum clamping device of the bag packaging machine described above, through an innovative moving plate structure, sets racks facing opposite directions on the moving plate, and drives the corresponding gears to rotate in the opposite direction through the racks, which can synchronously drive the first left and right grippers to move, thereby realizing the clamping and positioning of both ends of the packaging bag opening. This structure only requires a single drive structure, which effectively simplifies the structure of the equipment, while ensuring the stability of the movement of the clamping components at both ends and ensuring the clamping quality. Attached Figure Description

[0012] The present invention includes the following figures:

[0013] Figure 1 This is a schematic diagram of the bottom structure of this utility model;

[0014] Figure 2 This is a view of the present invention after part of the frame has been removed;

[0015] Figure 3 for Figure 2 View of the first left and right grippers holding the object;

[0016] Figure 4 for Figure 3 A magnified view of the area pointed to by A in the middle;

[0017] Figure 5 This is a cross-sectional view of the first swing block and the first left gripper of this utility model. Detailed Implementation

[0018] As shown in the figure, the vacuum clamping device for a bag packaging machine disclosed in this utility model includes a movable plate 2, which is connected to a first moving drive assembly. In this embodiment, the first moving drive assembly includes a first cylinder 1, and the piston rod of the first cylinder 1 is connected to the movable plate 2. Of course, in addition to cylinders, common linear drive structures such as linear motors, synchronous belts, cam structures, and chains can also be used to drive the movement of the moving plate 2. One end of the moving plate 2 is provided with a first rack 6, and the other end is provided with a second rack 3. The first rack 6 meshes with the first gear 5, and the second rack 3 meshes with the second gear 4. The first and second racks are oriented in opposite directions, so that the first and second gears rotate in opposite directions. The first gear 5 is connected to the first rotating shaft 11, and the second gear 4 is connected to the second rotating shaft 15. The first rotating shaft 11 can drive the first left gripper 9 to swing. A second left gripper 7 that cooperates with the first left gripper 9 is provided on the frame. The second rotating shaft 15 can drive the first right gripper 13 to swing. Specifically, the second rotating shaft 15 is connected to one end of the second swing block 14, the first right gripper 13 is connected to the second swing block 14, and a second right gripper 12 that cooperates with the first right gripper 13 is provided on the frame.

[0019] Furthermore, the first rotating shaft 11 is connected to one end of the first swing block 10. The first swing block 10 is provided with a first strip groove 23, and the first left gripper 9 is provided with a first transmission pin 22. The first transmission pin 22 is slidably inserted into the first strip groove 23. It also includes a moving block 17, which is connected to a second moving drive assembly. Specifically, the second moving drive assembly includes a second cylinder 16, and the piston rod of the second cylinder 16 is connected to the moving block 17. Of course, in addition to using a cylinder, common linear drive structures such as linear motors, synchronous belt structures, cam structures, and chains can also be used to drive the movement of the moving block 17. The moving block 17 is hinged to one end of the transmission arm 18, and the other end of the transmission arm 18 is hinged to the sliding arm 19. The sliding arm 19 is provided with a second strip groove 21, and the frame has a positioning post 20 passing through the second strip groove 21. One end of the first left gripper 9 is hinged to the sliding arm 19, and the second left gripper 7 is integrally formed on the sliding arm 19. By adopting the above structure, after the vacuuming operation is completed, the moving block 17 is controlled to move, and through the transmission arm 18, the sliding arm 19 is driven to move under the guidance of the second strip groove 21, which in turn drives the first left gripper 9 and the second left gripper 7 to move. During the movement of the first left gripper 9, the first transmission pin 22 will move in the first strip groove 23 to prevent the first left gripper 9 from getting stuck. The action of the first and second left grippers will pull the mouth of the clamped packaging bag flat before the subsequent heat sealing operation is carried out, avoiding the bag mouth from wrinkling and ensuring the heat sealing quality and the appearance.

[0020] Furthermore, both the first left gripper 9 and the first right gripper 13 are equipped with elastic blocks 8, which cooperate with the second left and right grippers to clamp the packaging bag tightly. This allows for elastic contact clamping of the packaging bag, preventing damage caused by rigid contact friction during clamping.

[0021] The working principle of this utility model is as follows: When the packaging bag containing the material is delivered to the clamping assembly, the first cylinder 1 is controlled to drive the moving plate 2 to move, so that the first and second rack transmission first and second gears rotate, thereby driving the first and second rotating shafts to rotate, and driving the first and second swing blocks to swing, driving the first left gripper 9 and the first right gripper 13 to swing, respectively cooperating with the second left gripper 7 and the second right gripper 12 to clamp the opening of the packaging bag.

[0022] This invention features an innovative movable plate structure with racks facing opposite directions. By driving the corresponding gears through the racks to rotate in the opposite direction, the first left and right grippers can be moved synchronously, thereby achieving clamping and positioning at both ends of the packaging bag opening. This structure only requires a single drive structure, effectively simplifying the equipment structure while ensuring the stability of the clamping components at both ends and guaranteeing clamping quality.

Claims

1. A vacuum clamping device for a bag packaging machine, characterized in that: The assembly includes a movable plate (2) connected to a first movable drive assembly. One end of the movable plate (2) is provided with a first rack (6) and the other end is provided with a second rack (3). The first rack (6) meshes with a first gear (5) and the second rack (3) meshes with a second gear (4). The first and second racks are oriented in opposite directions, so that the first and second gears rotate in opposite directions. The first gear (5) is connected to a first rotating shaft (11) and the second gear (4) is connected to a second rotating shaft (15). The first rotating shaft (11) can drive the first left gripper (9) to swing. A second left gripper (7) that cooperates with the first left gripper (9) is provided on the frame. The second rotating shaft (15) can drive the first right gripper (13) to swing. A second right gripper (12) that cooperates with the first right gripper (13) is provided on the frame.

2. The vacuum clamping device for a bag packaging machine according to claim 1, characterized in that: The first moving drive assembly includes a first cylinder (1), the piston rod of which is connected to the moving plate (2).

3. The vacuum clamping device for a bag packaging machine according to claim 1, characterized in that: The first rotating shaft (11) is connected to one end of the first swing block (10). The first swing block (10) is provided with a first strip groove (23). The first left gripper (9) is provided with a first transmission pin (22). The first transmission pin (22) is slidably inserted into the first strip groove (23). The machine also includes a moving block (17). The moving block (17) is connected to the second moving drive assembly. The moving block (17) is hinged to one end of the transmission arm (18). The other end of the transmission arm (18) is hinged to the sliding arm (19). The sliding arm (19) is provided with a second strip groove (21). The frame has a positioning post (20) that passes through the second strip groove (21). One end of the first left gripper (9) is hinged to the sliding arm (19). The second left gripper (7) is integrally formed on the sliding arm (19).

4. The vacuum clamping device for a bag packaging machine according to claim 3, characterized in that: The second moving drive assembly includes a second cylinder (16), the piston rod of which is connected to the moving block (17).

5. The vacuum clamping device for a bag packaging machine according to claim 1, characterized in that: The second rotating shaft (15) is connected to one end of the second swing block (14), and the first right gripper (13) is connected to the second swing block (14).

6. The vacuum clamping device for a bag packaging machine according to claim 1, characterized in that: Both the first left gripper (9) and the first right gripper (13) are provided with elastic blocks (8), which cooperate with the second left and right grippers to clamp the packaging bag.

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