Bag clamping device for releasing bag opening

Abstract

The utility model relates to the technical field of automatic packaging machines, and discloses a bag clamping device for releasing a bag mouth, which comprises a fixed plate, an elliptical cylinder is fixedly connected in the fixed plate, a plurality of hinge seats are fixedly connected at the bottom of a connecting plate, two bag clamping arms are connected in the hinge seats in a hinged manner, and the two bag clamping arms are fixedly connected with the elliptical cylinder. A bag clamping air cylinder is arranged between the two bag clamping arms, bag clamping blocks are arranged at the bottoms of the bag clamping arms, one end of a bag-shaped releasing air cylinder is fixedly connected with a bag-shaped releasing clamping block, and the two ends of the bag clamping air cylinder are connected to one sides of the two bag clamping arms in a hinged mode respectively. The bag-shaped releasing clamping blocks are driven by the bag-shaped releasing air cylinder to clamp the middle portion of a bag opening of a packaging bag, so that the two side portions of the bag opening are in a free state, then the bag clamping air cylinder is started, the bag clamping air cylinder drives the bottoms of the two bag clamping arms to be close to each other, the two bag clamping blocks are close to each other, and the two bag clamping blocks clamp the packaging bag. Therefore, the neatness and the attractiveness of the bag opening are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic packaging machines, in particular to a bag clamping device for releasing a bag opening. Background Art

[0002] Bag clamping devices are mainly used to fix and close the bag mouth during the packaging process to ensure that the material does not leak or scatter. These devices usually include a series of mechanical structures and control systems that can automatically complete the clamping and release of the bag mouth without human intervention.

[0003] Bag clamping devices are widely used in various packaging production lines, especially in the packaging of easy-flowing or dangerous materials such as powders, granules, and liquids. They are particularly important. They can effectively prevent leakage of materials during the packaging process and keep the packaging environment clean and safe.

[0004] With respect to the existing related technologies, the inventors believe that the following defects exist: after the existing equipment holds the bag opening, when the bag clamping device clamps the bag openings of different shapes, wrinkles will be generated on the clamped bag openings, causing the bag openings to be uneven, thus affecting the aesthetics. Utility Model Content

[0005] In order to solve the technical problem that in the existing equipment, when the bag-loading device supports the bag opening, the bag-clamping device will clamp the bag opening, and the clamped bag opening will be wrinkled and irregular, thus affecting the aesthetics, the utility model provides a bag-clamping device for releasing the bag opening.

[0006] The utility model is implemented by the following technical scheme: a bag clamping device for bag mouth release, comprising a fixed plate, the top of the fixed plate is fixedly connected to two lifting cylinders, the interior of the fixed plate is fixedly connected to an elliptical cylinder, the middle of the elliptical cylinder is fixedly connected to a connecting plate, the bottom of the connecting plate is fixedly connected to a plurality of hinged seats, the interior of the plurality of hinged seats is hingedly connected to two bag clamping arms, a bag clamping cylinder is arranged between the two bag clamping arms, a bag clamping block is arranged at the bottom of the bag clamping arm, the exterior of the elliptical cylinder is fixedly connected to a side plate, the bottom of the side plate is fixedly connected to a bag-shaped releasing cylinder, and one end of the bag-shaped releasing cylinder is fixedly connected to a bag-shaped releasing clamping block.

[0007] Preferably, two ends of the bag clamping cylinder are respectively hingedly connected to one side of the two bag clamping arms.

[0008] Preferably, a feed opening is provided at the bottom of the elliptical cylinder, and the shape of the feed opening is elliptical.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] When the utility model is in use, the bag-shaped releasing cylinder is started, and the bag-shaped releasing clamping block is driven by the bag-shaped releasing cylinder to clamp the middle part of the bag opening of the packaging bag, so that the two sides of the bag opening are in a free state and automatically restored to the original shape of the bag opening. Then the bag clamping cylinder is started, and the bag clamping cylinder drives the bottoms of the two bag clamping arms to approach each other. The two bag clamping arms drive the two bag clamping blocks to approach each other, so that the two bag clamping blocks clamp the packaging bag, so that the packaging bag is clamped in the original shape, thereby ensuring the neatness and beauty of the bag opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a side view of the bag clamping device of the utility model;

[0013] Figure 3 It is a top view of the bag clamping device of the present utility model.

[0014] In the figure: 1. fixed plate; 2. lifting cylinder; 3. bag clamping cylinder; 4. elliptical cylinder; 5. bag-shaped releasing cylinder; 6. bag-shaped releasing clamping block; 7. bag clamping block; 8. bag clamping arm; 9. articulated seat; 10. connecting plate; 11. unloading port; 12. side plate. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0016] Example 1: Please refer to Figure 1 - Figure 3 , a bag clamping device for bag mouth release of the present embodiment comprises a fixed plate 1, the top of the fixed plate 1 is fixedly connected to two lifting cylinders 2, the inside of the fixed plate 1 is fixedly connected to an elliptical cylinder 4, the middle of the elliptical cylinder 4 is fixedly connected to a connecting plate 10, the bottom of the connecting plate 10 is fixedly connected to a plurality of hinge seats 9, the inside of the plurality of hinge seats 9 is hingedly connected to two bag clamping arms 8, a bag clamping cylinder 3 is arranged between the two bag clamping arms 8, a bag clamping block 7 is arranged at the bottom of the bag clamping arm 8, the outside of the elliptical cylinder 4 is fixedly connected to a side plate 12, the bottom of the side plate 12 is fixedly connected to a bag-shaped releasing cylinder 5, one end of the bag-shaped releasing cylinder 5 is fixedly connected to a bag-shaped releasing clamping block 6, and the two ends of the bag clamping cylinder 3 are respectively hingedly connected to one side of the two bag clamping arms 8;

[0017] When in use, the bag-shaped releasing cylinder 5 is started, and the bag-shaped releasing clamping block 6 is driven to move, and the middle part of the bag opening of the packaging bag is clamped by the bag-shaped releasing clamping block 6, so that the two sides of the bag opening are free and automatically restored to the original shape of the bag opening, and then the bag clamping cylinder 3 is started, and the bag clamping cylinder 3 drives the tops of the two bag clamping arms 8 to rotate around the hinge seat 9, so that the bottoms of the two bag clamping arms 8 are close to each other, and the two bag clamping arms 8 will drive the two bag clamping blocks 7 to approach each other, so that the bag clamping blocks 7 clamp the packaging bag, so that the packaging bag is clamped in the original shape, thereby ensuring the neatness and beauty of the bag opening;

[0018] Furthermore, a discharge port 11 is provided at the bottom of the elliptical cylinder 4, and the shape of the discharge port 11 is elliptical. When the packaging bag is put on the outside of the discharge port 11, the bag-shaped release clamp 6 first clamps the middle part of the bag, so that the two sides of the bag opening automatically return to the original shape of the bag opening.

[0019] Working principle: by starting the bag-shaped releasing cylinder 5, the bag-shaped releasing clamping block 6 will be driven by the bag-shaped releasing cylinder 5 to clamp the middle part of the bag opening, so that the two sides of the bag opening are free and automatically restored to the original shape of the bag opening, and then the bag clamping cylinder 3 is started, and the bag clamping cylinder 3 drives the bottoms of the two bag clamping arms 8 to approach each other, and the two bag clamping arms 8 will drive the two bag clamping blocks 7 to approach each other, so that the two bag clamping blocks 7 clamp the packaging bag, so that the packaging bag is clamped in the original shape, thereby ensuring the neatness and beauty of the bag opening.

[0020] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A bag clamping device for bag opening release, comprising a fixing plate (1), characterized in that: The top of the fixed plate (1) is fixedly connected to two lifting cylinders (2), the interior of the fixed plate (1) is fixedly connected to an elliptical cylinder (4), the middle of the elliptical cylinder (4) is fixedly connected to a connecting plate (10), the bottom of the connecting plate (10) is fixedly connected to a plurality of hinged seats (9), the interior of the plurality of hinged seats (9) is hingedly connected to two bag clamping arms (8), a bag clamping cylinder (3) is arranged between the two bag clamping arms (8), a bag clamping block (7) is arranged at the bottom of the bag clamping arm (8), the outside of the elliptical cylinder (4) is fixedly connected to a side plate (12), the bottom of the side plate (12) is fixedly connected to a bag-shaped release cylinder (5), and one end of the bag-shaped release cylinder (5) is fixedly connected to a bag-shaped release clamping block (6).

2. A bag clamping device for bag opening release according to claim 1, characterized in that: Both ends of the bag clamping cylinder (3) are respectively hingedly connected to one side of the two bag clamping arms (8).

3. A bag clamping device for bag opening release according to claim 1, characterized in that: The bottom of the elliptical cylinder (4) is provided with a feed opening (11), and the shape of the feed opening (11) is elliptical.

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