Leakage-free bag clamping device and packaging machine

Abstract

The utility model discloses a leakage-free bag clamping device which comprises a machine frame and a feeding pipe, a feeding cavity of a square structure is formed in the lower portion of the feeding pipe, degassing cavities are formed in the positions, located on the left side and the right side of the feeding cavity, of the lower portion of the feeding pipe, dust removal channels are formed in the two sides of the upper portion of the feeding pipe, and the dust removal channels and the degassing cavities are distributed in a one-to-one correspondence mode. The dedusting channel is communicated with the degassing cavity and is connected with a negative pressure device, bag clamping assemblies are arranged on the front side and the rear side of the lower portion of the feeding pipe, each bag clamping assembly comprises an inner clamp located on the inner side and an outer clamp located on the outer side, the inner clamps are driven by an inner clamp driving assembly to achieve clamping / loosening, and the outer clamps are driven by an outer clamp driving assembly to achieve clamping / loosening. And a side clamp for pressing the bag opening is arranged on the outer side of the degassing cavity. The inner clamp, the outer clamp and the side clamps are matched to clamp and seal the bag opening, and the degassing cavity is arranged, so that gas in the bag can be removed, and dust at the bag opening is prevented from overflowing.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a leak-free bag clamping device and packaging machine. Background Technology

[0002] Packaging machines can be used to package various granular materials. These machines are highly efficient and require little energy, thus significantly reducing labor intensity and increasing production efficiency, and are now widely used. However, when bagging 300-400 mesh powders, dust easily spills out of the bag opening, not only damaging the workshop environment but also affecting bagging accuracy. Therefore, a solution is urgently needed. Utility Model Content

[0003] The purpose of this invention is to provide a leak-free bag clamping device and packaging machine to address the problems mentioned in the background art.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A leak-free bag clamping device includes a frame and a feed pipe mounted on the frame. The lower part of the feed pipe has a square-structured feed chamber, and degassing chambers are located on both the left and right sides of the feed chamber. Dust removal channels are located on both sides of the upper part of the feed pipe, corresponding one-to-one with the degassing chambers and connected to them. The dust removal channels are connected to a negative pressure device. Bag clamping assemblies are located on both the front and rear sides of the lower part of the feed pipe. Each bag clamping assembly includes an inner clamp located on the inner side and an outer clamp located on the outer side. The inner clamp is driven by an inner clamp driving assembly to achieve clamping / releasing, and the outer clamp is driven by an outer clamp driving assembly to achieve clamping / releasing. Side clamps for pressing the bag opening are located on the outer side of the degassing chamber, and these side clamps are driven by a side clamp driving assembly to achieve clamping / releasing.

[0006] In a preferred embodiment of this utility model, the degassing chamber has a triangular cross-section.

[0007] In a preferred embodiment of this utility model, the side clamp and the side clamp drive assembly are mounted on the movable frame, and the movable frame is driven by a side-pulling cylinder to achieve left and right movement.

[0008] As a preferred embodiment of this utility model, the inner clamping drive assembly includes an inner clamping cylinder, which is hinged to a first shaft, which is fixedly mounted on a frame. The output end of the inner clamping cylinder is hinged to a second shaft, which is mounted on a transmission block. The transmission block is fixedly connected to the inner clamping cylinder and is rotatably connected to a third shaft, which is fixedly mounted on the frame.

[0009] As a preferred embodiment of this utility model, the external clamping drive assembly includes an external clamping cylinder, which is hinged to a fourth shaft, which is mounted on a transmission block. The output end of the external clamping cylinder is hinged to a fifth shaft, which is mounted on a linkage block. The upper end of the linkage block is hinged to a fixed base, and the lower end of the linkage block is fixedly connected to the external clamp.

[0010] In a preferred embodiment of this utility model, the side clamp driving assembly includes a side clamp cylinder, which is horizontally arranged. One end of the side clamp cylinder is hinged to the upper end of the first transmission arm, and the other end of the side clamp cylinder is hinged to the upper end of the second transmission arm. The middle part of the first transmission arm is hinged to the intermediate seat, and the middle part of the second transmission arm is hinged to the intermediate seat. The intermediate seat is mounted on a movable frame, and side clamps are installed at the lower ends of the first transmission arm and the lower ends of the second transmission arm.

[0011] A packaging machine, comprising a leak-free bag clamping device as described above.

[0012] The beneficial effects of this utility model are that, compared with the prior art, this utility model achieves the clamping and sealing of the bag opening by cooperating with inner clamps, outer clamps and side clamps, and by setting a degassing chamber, it can remove the gas inside the bag and prevent dust from overflowing from the bag opening. The structure is simple and easy to implement. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a leak-free bag clamping device according to the present invention;

[0014] Figure 2 This is a three-dimensional structural schematic diagram of a leak-free bag clamping device according to this utility model from another perspective.

[0015] In the picture:

[0016] 1. Dust removal channel; 2. Inner clamp cylinder; 3. Outer clamp cylinder; 4. Inner clamp; 5. Outer clamp; 6. Feed pipe; 7. Linking block; 8. Side clamp cylinder; 9. Side pull cylinder; 10. Side clamp; 11. Frame; 12. Transmission block; 13. Movable frame; 14. First shaft; 15. Second shaft; 16. Fourth shaft; 17. Fifth shaft; 18. Third shaft; 19. Feed chamber; 20. Degassing chamber; 21. First transmission arm; 22. Second transmission arm. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0018] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, a mechanical connection, an electrical connection, or an indirect connection through an intermediate medium. They can also refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] In the description of this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] Please refer to Figure 1 and Figure 2 As shown, Figure 1 This is a three-dimensional structural diagram of a leak-free bag clamping device according to the present invention; Figure 2 This is a three-dimensional structural schematic diagram of a leak-free bag clamping device according to this utility model from another perspective.

[0021] In this embodiment, a leak-free bag clamping device includes a frame 11 and a feed pipe 6 mounted on the frame 11. The lower part of the feed pipe 6 is provided with a square feed chamber 19, and degassing chambers 20 are provided on both the left and right sides of the lower part of the feed pipe 6 located in the feed chamber 19. Dust removal channels 1 are provided on both sides of the upper part of the feed pipe 6. The dust removal channels 1 and the degassing chambers 20 are distributed in a one-to-one correspondence and are connected to the degassing chambers 20. Bag clamping assemblies are provided on both the front and rear sides of the lower part of the feed pipe 6. The bag clamping assembly includes an inner clamp 4 located on the inner side and an outer clamp 5 located on the outer side. The inner clamp 4 is driven by an inner clamp driving assembly to achieve clamping / releasing. The outer clamp 5 is driven by an outer clamp driving assembly to achieve clamping / releasing. A side clamp 10 for pressing the bag opening is provided on the outer side of the degassing chamber 20. The side clamp 10 is driven by a side clamp driving assembly to achieve clamping / releasing.

[0022] Specifically, in this embodiment, the degassing chamber 20 has a triangular cross-section.

[0023] Specifically, in this embodiment, the side clamp 10 and the side clamp drive assembly are mounted on the movable frame 13, which is driven by the side pull cylinder 9 to achieve left and right movement.

[0024] Specifically, in this embodiment, the inner clamping drive assembly includes an inner clamping cylinder 2, which is hinged to a first shaft 14. The first shaft 14 is fixedly mounted on the frame 11. The output end of the inner clamping cylinder 2 is hinged to a second shaft 15, which is mounted on a transmission block 12. The transmission block 12 is fixedly connected to the inner clamp 4 and is rotatably connected to a third shaft 18, which is fixedly mounted on the frame 11.

[0025] Specifically, in this embodiment, the external clamping drive assembly includes an external clamping cylinder 3, which is hinged to a fourth shaft 16. The fourth shaft 16 is mounted on a transmission block 12. The output end of the external clamping cylinder 3 is hinged to a fifth shaft 17. The fifth shaft 17 is mounted on a linkage block 7. The upper end of the linkage block 7 is hinged to a fixed base, and the lower end of the linkage block 7 is fixedly connected to the external clamp 5.

[0026] Specifically, in this embodiment, the side clamp driving assembly includes a side clamp cylinder 8, which is arranged horizontally. One end of the side clamp cylinder 8 is hinged to the upper end of the first transmission arm 21, and the other end of the side clamp cylinder 8 is hinged to the upper end of the second transmission arm 22. The middle part of the first transmission arm 21 is hinged to the middle seat, and the middle part of the second transmission arm 22 is hinged to the middle seat. The middle seat is mounted on the movable frame 13. Side clamps 10 are installed at the lower ends of the first transmission arm 21 and the second transmission arm 22.

[0027] During operation, after the bag is loaded, the outer clamping cylinder 3 operates, pressing the bag opening tightly against the inner clamp 4. Next, the side-pulling cylinder 9 moves the movable frame 13 into position, and the side clamping cylinder 8 operates, causing the side clamp 10 to press the bag opening tightly against the inner clamp 4. Then, the inner clamping cylinder 2 opens the inner clamp 4, slightly widening the bag opening to achieve a seal, preventing leakage during filling. During filling, some gas can be discharged from the degassing chamber 20, without affecting filling accuracy.

[0028] This embodiment also discloses a packaging machine, including a leak-free bag clamping device as described above.

[0029] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims.

Claims

1. A leak-free bag clamping device, comprising a frame and a feed pipe mounted on the frame, characterized in that: The lower part of the feed pipe is provided with a square feed chamber, and degassing chambers are provided on both the left and right sides of the feed chamber at the lower part of the feed pipe. Dust removal channels are provided on both sides of the upper part of the feed pipe. The dust removal channels are distributed one-to-one with the degassing chambers and are connected to the degassing chambers. The dust removal channels are connected to a negative pressure device. Bag clamping assemblies are provided on both the front and rear sides of the lower part of the feed pipe. The bag clamping assembly includes an inner clamp located on the inside and an outer clamp located on the outside. The inner clamp is driven by an inner clamp driving assembly to achieve clamping / releasing. The outer clamp is driven by an outer clamp driving assembly to achieve clamping / releasing. Side clamps for pressing the bag opening are provided on the outside of the degassing chamber. The side clamps are driven by a side clamp driving assembly to achieve clamping / releasing.

2. The leak-free bag clamping device according to claim 1, characterized in that: The degassing chamber has a triangular cross-section.

3. The leak-free bag clamping device according to claim 1, characterized in that: The side clamp and the side clamp drive assembly are mounted on the movable frame, which is driven by a side-pulling cylinder to achieve left and right movement.

4. The leak-free bag clamping device according to claim 1, characterized in that: The inner clamp drive assembly includes an inner clamp cylinder, which is hinged to a first shaft, which is fixedly mounted on the frame. The output end of the inner clamp cylinder is hinged to a second shaft, which is mounted on a transmission block. The transmission block is fixedly connected to the inner clamp and is rotatably connected to a third shaft, which is fixedly mounted on the frame.

5. The leak-free bag clamping device according to claim 4, characterized in that: The external clamping drive assembly includes an external clamping cylinder, which is hinged to a fourth shaft, which is mounted on a transmission block. The output end of the external clamping cylinder is hinged to a fifth shaft, which is mounted on a linkage block. The upper end of the linkage block is hinged to a fixed base, and the lower end of the linkage block is fixedly connected to the external clamp.

6. The leak-free bag clamping device according to claim 1, characterized in that: The side clamp drive assembly includes a side clamp cylinder, which is horizontally arranged. One end of the side clamp cylinder is hinged to the upper end of the first transmission arm, and the other end of the side clamp cylinder is hinged to the upper end of the second transmission arm. The middle part of the first transmission arm is hinged to the intermediate seat, and the middle part of the second transmission arm is hinged to the intermediate seat. The intermediate seat is mounted on a movable frame. Side clamps are installed at the lower ends of the first transmission arm and the second transmission arm.

7. A packaging machine, characterized in that: Including a leak-free bag clamping device according to any one of claims 1 to 6.

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