A bag opening and holding structure

Abstract

The utility model relates to a kind of bag opening to hold and release structure, including two clamps, the clamp is equipped with first swing arm being symmetrically equipped, first swing arm is hingedly connected with second cylinder, the output end of second cylinder is hingedly connected with second swing arm, the other end of second swing arm is hingedly connected with clamp, second swing arm is equipped with the arc-shaped grab hook, grab hook is driven under second cylinder, so that the hook end of grab hook is synchronously telescopic inward;By being equipped with two clamps and first swing arm, first swing arm is hingedly connected with clamp, under the impetus of second cylinder, so that clamp can swing, to realize the clamping and release of packaging bag;Grab hook can be synchronously telescopic inward under the drive of second cylinder, the hook end of grab hook can firmly hook the edge of packaging bag when clamping packaging bag, prevent packaging bag from falling off in clamping process, improve the efficiency and stability in packaging bag conveying.

Description

Technical Field

[0001] This utility model belongs to the field of bag opening technology and relates to a bag opening clamp structure. Background Technology

[0002] In existing bag opening clamp designs, clamps on both sides are generally used to hold the bag at the opening. This design performs well in most cases and can meet basic usage needs. However, when the weight of the contents inside the bag is relatively large, the clamping method becomes unstable, and the bag may fall off due to insufficient clamping force. Utility Model Content

[0003] The purpose of this invention is to provide a bag-opening clip structure that can solve the problems mentioned in the background art.

[0004] According to the technical solution provided by this utility model: a bag opening clamping structure includes two clamping plates. The clamping plates are provided with symmetrically arranged first swing arms. A second cylinder is hinged to the first swing arm. The output end of the second cylinder is hinged to the second swing arm. The other end of the second swing arm is hinged to the clamping plate. The second swing arm is provided with an arc-shaped grab hook. Under the drive of the second cylinder, the hook tip of the grab hook extends and retracts inward synchronously.

[0005] Preferably, it also includes a main frame, on which cylinder cleats are symmetrically mounted, and each cylinder cleat is symmetrically hinged with a first cylinder, the output end of each pair of first cylinders being hinged to a clamping plate; the clamping plate is rotatably connected to the main frame, and under the drive of the first cylinders, the clamping plate can swing inward and outward.

[0006] Preferably, each of the four corners of the main frame is provided with a support seat, and a hinge bracket is hinged to the support seat. Every two hinge brackets are connected to the clamping plate.

[0007] Preferably, the output end of the first cylinder is hinged to the corner of the clamping plate via the second hinge joint; the second cylinder is hinged to the second swing arm via the first hinge joint.

[0008] Preferably, four baffles are provided between opposite sides of the clamping plate, and through holes are provided on the baffles and located at the hook end of the grab.

[0009] Preferably, the main frame is provided with a reinforcing plate.

[0010] The bag-opening clip structure provided by this utility model has the following advantages:

[0011] 1. By setting two clamping plates and a first swing arm, the first swing arm is hinged to the clamping plates. Under the push of the second cylinder, the clamping plates can swing, thereby realizing the clamping and release of the packaging bag. The grab hook can extend and retract inward synchronously under the drive of the second cylinder. When clamping the packaging bag, the hook tip can firmly hook the edge of the packaging bag, preventing the packaging bag from falling off during the clamping process, thus improving the efficiency and stability of the packaging bag conveying. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present invention.

[0013] Figure 2 This is a front view of the present invention.

[0014] Figure 3 This is a side view of the present invention.

[0015] Figure 4 This is a top view of the present invention.

[0016] In the diagram: 1. Main frame; 2. Reinforcing plate; 3. Support base; 4. Hinge bracket; 5. Clamping plate; 6. Cylinder ear ring; 7. First cylinder; 8. First swing arm; 9. Second cylinder; 10. First hinge joint; 11. Second swing arm; 12. Hook; 13. Baffle; 14. Through hole; 15. Second hinge joint. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] like Figure 1-4As shown, this utility model is a bag-opening clamping structure, including two clamping plates 5. The clamping plates 5 are provided with symmetrically arranged first swing arms 8. A second cylinder 9 is hinged to the first swing arm 8. The output end of the second cylinder 9 is hinged to a second swing arm 11. The other end of the second swing arm 11 is hinged to the clamping plate 5. The second swing arm 11 is provided with an arc-shaped hook 12. Under the drive of the second cylinder 9, the hook end of the hook 12 extends and retracts inward synchronously.

[0020] By setting two clamping plates 5 and a first swing arm 8, the first swing arm 8 is hinged to the clamping plate 5. Under the push of the second cylinder 9, the clamping plate 5 can swing, thereby realizing the clamping and release of the packaging bag. The grab hook 12 can extend and retract in sync under the drive of the second cylinder 9. When the grab hook 12 clamps the packaging bag, it can firmly hook the edge of the packaging bag, preventing the packaging bag from falling off during the clamping process, thus improving the efficiency and stability of the packaging bag conveying.

[0021] Preferably, it also includes a main frame 1, on which cylinder lugs 6 are symmetrically mounted, and first cylinders 7 are symmetrically hinged to each cylinder lug 6. The output ends of every two first cylinders 7 are hinged to the clamping plate 5. The clamping plate 5 is rotatably connected to the main frame 1, and under the drive of the first cylinders 7, the clamping plate 5 can swing inward and outward.

[0022] Preferably, each of the four corners of the main frame 1 is provided with a support seat 3, and a hinge bracket 4 is hinged to the support seat 3. Every two hinge brackets 4 are connected to the clamping plate 5, which improves the support for the rotation of the clamping plate 5. The output end of the first cylinder 7 is hinged to the corner of the clamping plate 5 through the second hinge joint 15. The second cylinder 9 is hinged to the second swing arm 11 through the first hinge joint 10, which allows for flexible adjustment of the clamping force and angle, ensuring accurate operation during clamping tasks, and also ensuring the stability and safety of the equipment.

[0023] Preferably, four baffles 13 are provided between opposite sides of the clamping plate 5. Through holes 14 are provided on the baffles 13 and at the hook end of the grab hook 12. By setting the baffles 13, when the grab hook 12 is reset, the packaging bag of the baffles 13 applies a pushing force, which can effectively prevent the grab hook 12 from rubbing against the packaging tape during the reset process, so that the grab hook 12 will not get caught on the packaging tape and cause it to be unable to fall off.

[0024] Preferably, the main frame 1 is provided with a reinforcing plate 2, which improves the stability and robustness of the main frame 1.

[0025] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. A bag-opening clip structure, characterized in that, It includes two clamping plates (5), on which a first swing arm (8) is symmetrically arranged. A second cylinder (9) is hinged to the first swing arm (8). The output end of the second cylinder (9) is hinged to a second swing arm (11). The other end of the second swing arm (11) is hinged to the clamping plate (5). An arc-shaped grab hook (12) is provided on the second swing arm (11). Under the drive of the second cylinder (9), the hook end of the grab hook (12) extends and retracts inward synchronously.

2. The bag-opening clamp structure as described in claim 1, characterized in that: It also includes a main frame (1), on which cylinder ear rings (6) are symmetrically installed. Each cylinder ear ring (6) is symmetrically hinged with a first cylinder (7). The output end of each pair of first cylinders (7) is hinged to the clamping plate (5). The clamping plate (5) is rotatably connected to the main frame (1) and, driven by the first cylinder (7), allows the clamping plate (5) to swing inward and outward.

3. The bag-opening clamp structure as described in claim 2, characterized in that: The main frame (1) has four support seats (3) at its four corners. The support seats (3) are hinged with hinge brackets (4). Every two hinge brackets (4) are connected to the clamping plate (5).

4. The bag-opening clamp structure as described in claim 3, characterized in that: The output end of the first cylinder (7) is hinged to the corner of the clamping plate (5) through the second hinge joint (15); the second cylinder (9) is hinged to the second swing arm (11) through the first hinge joint (10).

5. The bag-opening clamp structure as described in claim 4, characterized in that: Four baffles (13) are provided between the opposite sides of the clamp (5), and through holes (14) are opened on the baffles (13) and at the hook end of the grab (12).

6. The bag-opening clamp structure as described in claim 5, characterized in that: The main frame (1) is provided with a reinforcing plate (2).

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