Clamping and releasing device for multiple plastic bags

Abstract

The utility model relates to the technical field of plastic bag manufacturing, in particular to a clamping and releasing device for multiple plastic bags. According to the multi-plastic-bag clamping and releasing device, on the basis that clamping plates for clamping plastic bags on the two sides in the plastic bag stacking direction are adopted, a second set of clamping bodies are arranged on the two sides perpendicular to the plastic bag stacking direction, a large number of plastic bags located in the clamping plates are secondarily clamped, and therefore the plastic bags which are located in the middle of the plastic bag stacking direction and are prone to falling off originally are separated from each other. According to the clamping and releasing device for the multiple plastic bags, the multiple plastic bags are directly clamped and extruded by the clamping bodies, the plastic bags are prevented from falling off from the clamping plates, meanwhile, the clamping plates and the clamping bodies arranged on the periphery do not hinder the releasing face when the plastic bags are released, and after the plastic bags are transferred into a packaging container through the clamping and releasing device for the multiple plastic bags, the plastic bags can be pressed without moving outwards for too much space; therefore, the plastic bags can be released, and further the clamping device can clamp more plastic bags.

Description

Technical Field

[0001] This utility model relates to the field of plastic bag manufacturing technology, and in particular to a multi-plastic bag clamping and releasing device. Background Technology

[0002] In the manufacturing process of plastic bags, the final step is to pack them. When packing plastic bags, multiple plastic bags need to be stacked and clamped for transfer. In the existing technology, there are two solutions for clamping plastic bags. When there are only a few plastic bags, they can be clamped directly by clamping them with clamps on both sides. However, this requires repeated clamping and operation, which is quite cumbersome. When the number of plastic bags clamped at one time is increased, since the outer side of the plastic bags is relatively smooth, increasing the number of plastic bags clamped makes it easy for the middle plastic bags to fall off because both sides are in contact with the smooth plastic bags. This can lead to all the clamped plastic bags falling off.

[0003] In another method, a cross fork is added to the underside of the clamping plate holding the plastic bag. This achieves the clamping of the plastic bag. However, the purpose of clamping the plastic bag is to transfer it into a larger packaging bag. When the cross fork solution is used, the remaining space on both sides of the packaging bag is insufficient for the cross fork to detach from the underside of the plastic bag. Therefore, it is still necessary to reduce the number of plastic bags that can be clamped. Under the premise of allowing the cross fork to detach from the packaging bag, the number of plastic bags that can be clamped is still limited. Now, a method that can transfer and stack plastic bags in large quantities is needed. Utility Model Content

[0004] The technical problem this utility model aims to solve is to address the aforementioned technical deficiencies by providing a multi-plastic bag clamping and releasing device. This device employs clamping plates on both sides of the plastic bag stacking direction, with a second set of clamping bodies on both sides perpendicular to the stacking direction. This secondary clamping of the numerous plastic bags within the clamping plates ensures that plastic bags located in the middle of the stacking direction, which would otherwise easily fall, are directly clamped and compressed by the clamping bodies, preventing them from falling out of the clamping plates. Simultaneously, the surrounding clamping plates and clamping bodies do not obstruct the release surface when the plastic bags are released. This allows the multi-plastic bag clamping and releasing device to release the plastic bags after transferring them into the packaging container without requiring excessive outward movement, thus enabling the device to clamp even more plastic bags.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a multi-plastic bag clamping and releasing device, including clamping plates arranged on both sides along the stacking direction of the multi-plastic bags, the two clamping plates being mounted on a base, a first driving assembly for driving the clamping plates to clamp the plastic bags being provided on the base, the two clamping plates clamping the plastic bags inward from the outer sides along the stacking direction of the multi-plastic bags, and also including clamping bodies arranged on both sides perpendicular to the stacking direction of the multi-plastic bags; the clamping bodies are also mounted on the base, and a second driving assembly for driving the clamping bodies to clamp the plastic bags being provided on the base, the second driving assembly driving the clamping bodies to clamp the plastic bags inward from the outer sides along the stacking direction of the multi-plastic bags.

[0006] To further optimize this technical solution, after multiple plastic bags are clamped, the side of the bag that is not clamped by the clamping plate and the clamping body is the release surface. At the corresponding position of the release surface, neither the clamping plate nor the clamping body is provided with any component that extends to the release surface to prevent the plastic bags from falling.

[0007] To further optimize this technical solution, the second driving component is a cylinder, one clamping body is directly mounted on the base, and the other clamping body is mounted on the telescopic end of the cylinder. The clamping between the two clamping bodies is achieved by the telescopic extension of the cylinder.

[0008] To further optimize this technical solution, the second drive component consists of two cylinders arranged opposite each other, with two clamping bodies respectively mounted on the telescopic ends of the two cylinders. The plastic bag is clamped by the simultaneous telescopic movement of the two cylinders.

[0009] To further optimize this technical solution, the clamping body is sheet-shaped and is arranged along the length of the plastic bag stacking direction, having a contacting surface that contacts the inner plastic bag.

[0010] To further optimize this technical solution, the lower edges of the clamping bodies on both sides are tilted inward.

[0011] To further optimize this technical solution, the clamping body is strip-shaped and is set along the length of the plastic bags stacking direction, having an abutting curved surface that contacts the inner plastic bags.

[0012] To further optimize this technical solution, a material pushing mechanism is provided on the inner side of the clamping plates on both sides.

[0013] To further optimize this technical solution, the pushing mechanism is a cylinder with its telescopic end facing downwards; the telescopic end of the cylinder is equipped with a push plate.

[0014] Compared with the prior art, this utility model has the following advantages: 1. Based on the clamping plates that hold plastic bags on both sides of the plastic bag stacking direction, a second set of clamping bodies is set on both sides perpendicular to the plastic bag stacking direction. This allows for secondary clamping of a large number of plastic bags located within the clamping plates, so that plastic bags located in the middle of the plastic bag stacking direction that are originally easy to fall off are directly clamped and squeezed by the clamping bodies, preventing the plastic bags from falling out of the clamping plates. 2. At the same time, the clamping plates and clamping bodies set around the perimeter do not obstruct the release surface when the plastic bags are released. This allows the multi-plastic bag clamping and release device to transfer the plastic bags into the packaging container without needing to move outwards too much space to contact the pressure on the plastic, allowing the plastic bags to be released. This further allows the clamping device to clamp more plastic bags. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a multi-plastic bag clamping and releasing device.

[0016] Figure 2 This is a schematic diagram of the structure of a multi-plastic-bag clamping and releasing device when clamping plastic bags.

[0017] Figure 3 This is a schematic diagram of the overall open state structure of the multi-plastic bag clamping and releasing device.

[0018] In the figure: 1. Clamping plate; 2. Base; 3. First drive assembly; 4. Clamping body; 5. Second drive assembly; 6. Cylinder; 7. Pushing mechanism; 8. Push plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model. Example 1

[0020] Combination Figure 1-3 As shown, the multi-plastic bag clamping and releasing device includes clamping plates 1 arranged on both sides along the stacking direction of the multi-plastic bags. The two clamping plates 1 are mounted on a base 2. A first driving assembly 3 is provided on the base 2 to drive the clamping plates 1 to clamp the plastic bags. The two clamping plates 1 clamp the plastic bags inward from the outer sides along the stacking direction of the multi-plastic bags. It also includes clamping bodies 4 arranged perpendicular to the stacking direction of the multi-plastic bags. The clamping bodies 4 are also mounted on the base 2. A second driving assembly 5 is provided on the base 2 to drive the clamping bodies 4 to clamp the plastic bags. The second driving assembly 5 drives the clamping bodies 4 to clamp the plastic bags inward from the outer sides along the stacking direction of the multi-plastic bags.

[0021] After multiple plastic bags are clamped, the side of the bag that is not clamped by the clamping plate 1 and the clamping body 4 is the release surface. At the corresponding position of the release surface, neither the clamping plate 1 nor the clamping body 4 is provided with any part that extends to the release surface to prevent the plastic bags from falling.

[0022] The second drive assembly 5 consists of two cylinders 6, which are arranged opposite to each other, and two clamping bodies 4 are respectively installed on the telescopic ends of the two cylinders 6.

[0023] Specifically, the two cylinders (6) can be placed horizontally or vertically as needed, such as... Figure 1 As shown, when a small number of plastic bags need to be clamped, the space for the compression cylinder 6 can be provided, and two cylinders 6 can be set vertically.

[0024] like Figure 3 As shown, when there are many plastic bags to be clamped and there is sufficient installation space, the two cylinders 6 can be set horizontally.

[0025] The plastic bag is clamped by the simultaneous extension and retraction of two cylinders 6. The clamping body 4 is strip-shaped or sheet-shaped.

[0026] When the clamping body 4 is strip-shaped (not shown in the figure), it is arranged along the length of the plastic bag stacking direction and has an abutting curved surface that contacts the inner plastic bag.

[0027] like Figure 1-3 As shown, when the clamping body 4 is sheet-shaped, it is arranged along the length of the plastic bag stacking direction and has an abutting surface that contacts the inner plastic bag. The lower edges of the clamping bodies 4 on both sides are inclined inward.

[0028] A pushing mechanism 7 is provided on the inner side of the clamping plates 1 on both sides. The pushing mechanism 7 is a cylinder with its telescopic end facing downward; a push plate 8 is provided on the telescopic end of the cylinder.

[0029] The first drive component can be a telescopic cylinder or a rotary cylinder. Example 2

[0030] The difference from Example 1 is that

[0031] The second drive component 5 is a cylinder 6 (not shown in the figure), one clamping body 4 is directly mounted on the base 2, and the other clamping body 4 is mounted on the telescopic end of the cylinder 6. The clamping between the two clamping bodies 4 is achieved by the telescopic extension of the cylinder 6.

[0032] Combination Figures 1-3In use, the first drive assembly 3 clamps the two side clamps 1, achieving a single clamping of multiple plastic bags stacked within the two side clamps 1. Simultaneously, the clamping bodies 4 on both sides, driven by the second drive mechanism, perform a secondary compression on the plastic bags within the two side clamps 1, achieving a double compression clamping of the plastic bags. This allows the clamping device to clamp more plastic bags more stably. Furthermore, the solution does not include any obstructions on the release surface of the clamped plastic bags, so that when releasing the plastic bags, the clamping bodies 4 and clamps 1 do not need to move outward excessively. This allows the multi-plastic bag clamping and release device to transfer and clamp more plastic bags at once.

[0033] When the plastic bag is released after being clamped, the multi-plastic bag clamping and release device extends into the flexible packaging bag or rigid packaging box. Driven by the first drive component 3 and the second drive component 5, the clamping plate 1 and the clamping body 4 move away from the plastic bag, thus unloading the multiple plastic bags. Furthermore, when a pushing mechanism 7 is provided on the clamping plate 1, the outward movement range of the clamping plate 1 can be further reduced. The pushing plate 8 of the pushing mechanism 7 pushes the unloading material downward, causing the plastic bag to detach from the multi-plastic bag clamping and release device.

[0034] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0035] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A multi-plastic bag clamping and releasing device, comprising clamping plates (1) arranged on both sides along the direction of the multi-plastic bag stack, the two clamping plates (1) are installed on a base (2), the base (2) is provided with a first driving assembly (3) for driving the clamping plates (1) to clamp the plastic bags, and the two clamping plates (1) clamp the plastic bags inward on the outer sides along the direction of the multi-plastic bag stack, characterized in that: Also included are clamping bodies (4) arranged on both sides perpendicular to the stacking direction of the plastic bags; the clamping bodies (4) are also mounted on the base (2), and the base (2) is also provided with a second driving assembly (5) for driving the clamping bodies (4) to clamp the plastic bags, and the second driving assembly (5) drives the clamping bodies (4) to clamp the plastic bags inward along the outer sides perpendicular to the stacking direction of the plastic bags. ​ 2. The multi-plastic bag holder and dispenser device of claim 1, wherein: After the plastic bags are clamped, the side of the plastic bags that is not clamped by the clamping plate (1) and the clamping bodies (4) is the release side, and at the corresponding position of the release side, neither the clamping plate (1) nor the clamping bodies (4) is provided with a component extending to the release side to block the plastic bags from falling.

3. The multi-plastic bag holder and dispenser device of claim 2, wherein: The second driving assembly (5) is a cylinder (6), one clamping body (4) is directly mounted on the base (2), and the other clamping body (4) is mounted on the telescopic end of the cylinder (6), and the clamping between the two clamping bodies (4) is realized by the telescopic action of the cylinder (6).

4. The multi-plastic bag holder and dispenser device of claim 2, wherein: The second driving assembly (5) is two cylinders (6), the two cylinders (6) are arranged oppositely, and the two clamping bodies (4) are respectively mounted on the telescopic ends of the two cylinders (6), and the clamping of the plastic bags is realized by the simultaneous telescopic action of the two cylinders (6).

5. The multi-plastic bag holder and dispenser device of any one of claims 1-4, wherein: The clamping body (4) is in the shape of a sheet, which is arranged along the length of the stacking direction of the plastic bags, and has a contact surface that contacts the inner side of the plastic bags.

6. The multi-plastic bag holder and dispenser device of claim 5, wherein: The lower edges of the clamping bodies (4) on both sides are arranged inwardly inclined.

7. The multi-plastic bag holder and dispenser device of any one of claims 1-4, wherein: The clamping body (4) is in the shape of a strip, which is arranged along the length of the stacking direction of the plastic bags, and has a curved surface that contacts the inner side of the plastic bags.

8. The multi-plastic bag holder and dispenser device of any one of claims 1-4, wherein: The inner sides of the clamping plates (1) on both sides are provided with a pushing mechanism (7).

9. The multi-plastic bag holder and dispenser device of claim 8, wherein: The pushing mechanism (7) is a cylinder with the telescopic end arranged downward; the telescopic end of the cylinder is provided with a pushing plate (8).

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