Plastic bag edge folding device

Abstract

The utility model belongs to the field of plastic bag production, particularly relates to a plastic bag edge folding device, and aims to solve the problems of low edge folding precision, low efficiency, complicated operation and the like due to manual operation or simple mechanical structures and the problems of high price and complicated structure of a device used by a large factory assembly line in the prior art. The device comprises a support, and an L-shaped mounting plate is fixedly arranged at the top of the support; the edge folding assemblies are used for folding edges of the plastic bags, the edge folding assemblies are arranged on the two sides of the support, each edge folding assembly comprises two folding plates, mounting strips are fixedly arranged at one ends of the two sides of the support, and rotating rods are rotationally arranged at one ends of the mounting strips. The two folding plates can be driven to rotate by driving the servo motor to fold the two sides of the plastic bag, it can be ensured that folding is conducted along the folding position through the folding rods, the structure is simple, operation is convenient and fast, and actual use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bag production, in particular to a plastic bag folding device. Background Art

[0002] As a widely used packaging material, the appearance design and practicality of plastic bags are of great significance to the overall image and market competitiveness of the product. The plastic bag folding device usually folds the plastic bags one by one. As an important process in the production of plastic bags, folding can improve the load-bearing capacity and durability of plastic bags.

[0003] However, traditional plastic bag folding devices mostly use manual operation or simple mechanical structures, which have problems such as low folding precision, low efficiency, and complex operation. The devices used in large factory assembly lines are relatively expensive and have complex structures. Utility Model Content

[0004] The purpose of the utility model is to solve the problems in the prior art that most of them adopt manual operation or simple mechanical structure, have low folding precision, low efficiency, complicated operation and the like, and the devices used in large factory assembly lines are relatively expensive and have complex structures.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A plastic bag folding device comprises a bracket, the top of which is fixedly provided with an L-shaped mounting plate;

[0007] A folding assembly is used to fold the plastic bag. The folding assembly is arranged on both sides of the bracket. The folding assembly includes two folding plates. One end of each side of the bracket is fixedly provided with a mounting bar. One end of the mounting bar is rotatably provided with a rotating rod. The outer wall of the rotating rod is fixedly sleeved with a connecting plate. A fixing rod is fixedly provided on one side of the connecting plate. The two folding plates are respectively fixedly provided at one end of the two fixing rods.

[0008] The driving assembly is used for driving the plastic bag to move, and the driving assembly is arranged inside the bracket.

[0009] In a possible design, the folding assembly also includes a folding rod, and the two folding rods are respectively fixed above the two sides of the top of the bracket. A groove is opened on the top of the folding plate and on one side close to the folding rod, and the groove cooperates with the adjacent folding rod.

[0010] In a possible design, base plates are fixedly provided at both ends of one side of the bracket, a servo motor is fixedly provided on the top of the base plate, and the output shaft of the servo motor is fixedly provided to one end of the rotating rod on the same side.

[0011] In one possible design, the drive assembly includes a No. 1 conveyor fixedly disposed inside the bracket.

[0012] In one possible design, the drive assembly further includes a No. 2 conveyor fixedly mounted on the top inner wall of the L-shaped mounting plate, and the No. 2 conveyor is located above the No. 1 conveyor.

[0013] In a possible design, side panels are fixedly provided on both sides of the bracket, and the two side panels are respectively matched with two folding plates.

[0014] In the present application, during specific use, the plastic bag is first placed on the top of the bracket and the two sides of the plastic bag are respectively located above the two side plates, and then the No. 1 conveyor and the No. 2 conveyor are driven to clamp and convey the plastic bag. When the side of the plastic bag moves to the top of the folding plate, it stops moving, and the plastic bag is located below the folding rod. Then the servo motor is driven, and the servo motor drives the rotating rod to rotate, and the rotating rod drives the connecting plate to rotate. The connecting plate drives the folding plate to rotate through the fixed rod. At this time, the folding plate will drive the side of the plastic bag to move to realize the folding operation and the folding rod is used as the folding line of the folding to ensure the smooth realization of the folding operation. Then the servo motor is driven in reverse to reset the folding plate and then the No. 1 conveyor and the No. 2 conveyor are driven in reverse to move the plastic bag out. It is simple and easy to operate.

[0015] In the present invention, the plastic bag folding device can achieve the goal of placing the plastic bag on the top of the bracket through the driving component, and then transporting it to the position range of the folding component for folding, and then reverse driving to move the folded plastic bag to the initial position;

[0016] In the utility model, the plastic bag folding device can achieve the goal of moving the plastic bag to the range of the two folding plates through the folding assembly, and then drive the folding plates to rotate, thereby performing the folding operation, and by being arranged on the folding rod, it can ensure that the plastic bag is folded along the folding edge, ensuring that the operation can be smoothly achieved;

[0017] The utility model can be used to place the plastic bag in a convenient manner and move it to the range of the folding assembly through the driving assembly to perform the folding operation. When the plastic bag is moved into the range of the two folding plates, the servo motor can be driven to drive the two folding plates to rotate to perform the folding operation on both sides of the plastic bag. The folding rod can ensure that the folding is performed along the folding edge. The utility model has a simple structure and is easy to operate, which is convenient for practical use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the plastic bag folding device proposed in the utility model;

[0019] Figure 2This is a schematic cross-sectional view of the plastic bag folding device proposed in the present invention;

[0020] Figure 3 This is a right side structural schematic diagram of the plastic bag folding device proposed in the utility model.

[0021] In the figure: 1. Bracket; 2. Conveyor No. 1; 3. Conveyor No. 2; 4. L-shaped mounting plate; 5. Side plate; 6. Folding plate; 7. Groove; 8. Mounting bar; 9. Folding rod; 10. Servo motor; 11. Bottom plate; 12. Fixed rod; 13. Rotating rod; 14. Connecting plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Example 1

[0024] Reference Figure 1 The plastic bag folding device is used in the field of plastic bag production and includes a bracket 1, a folding assembly, and a drive assembly. The bracket 1 serves as the basic supporting structure of the entire device, and an L-shaped mounting plate 4 is fixed on the top thereof for mounting other components.

[0025] Reference Figure 3 The folding assembly is used to fold the plastic bag and is arranged on both sides of the bracket 1. Specifically, the folding assembly includes two folding plates 6, and the two folding plates 6 are respectively used to fold the two sides of the plastic bag. In order to realize the rotation and positioning of the folding plates 6, a mounting bar 8 is fixedly provided at one end of each side of the bracket 1, and a rotating rod 13 is rotatably provided at one end of the mounting bar 8. A connecting plate 14 is fixedly sleeved on the outer wall of the rotating rod 13, and a fixed rod 12 is fixedly provided on one side of the connecting plate 14. The two folding plates 6 are respectively fixed at one end of the two fixed rods 12. In this way, when the rotating rod 13 rotates, it will drive the connecting plate 14 and the fixed rod 12 to rotate together, thereby realizing the rotation of the folding plates 6.

[0026] Reference Figure 2 To further enhance the hemming effect, the hemming assembly also includes folding rods 9. Two folding rods 9 are fixedly mounted above the top of the bracket 1 on either side. The plastic bag moves below the folding rods 9. When the folding plate 16 rotates, the position of the folding rods 9 can be used as the hemming position. A groove 7 is defined at the top of the folding plate 6, near the folding rods 9. When the folding plate 6 rotates to a certain position, the groove 7 engages with the adjacent folding rod 9, allowing the folding plate 6 to remain stably in the hemming position, thereby improving hemming accuracy and stability.

[0027] Example 2

[0028] refer to Figure 2 This embodiment is an improvement on Example 1: a drive assembly is provided inside the bracket 1 to drive the movement of the plastic bags. Specifically, the drive assembly includes a first conveyor 2 fixedly mounted inside the bracket 1, which transports the plastic bags from one end of the device to the other. Furthermore, to further transport and position the plastic bags, the drive assembly also includes a second conveyor 3 fixedly mounted on the top inner wall of the L-shaped mounting plate 4, positioned above the first conveyor 2. This ensures stable transport and positioning of the plastic bags thanks to the combined action of the first and second conveyors 2 and 3.

[0029] Reference Figure 3 To drive the hemming assembly's rotation, a base plate 11 is fixedly mounted on both ends of one side of the bracket 1, and a servo motor 10 is fixedly mounted on top of the base plate 11. The output shaft of the servo motor 10 is fixedly mounted on one end of a rotating rod 13 on the same side. When the servo motor 10 is activated, it drives the rotating rod 13 to rotate, thereby achieving the rotation of the hemming assembly and the hemming operation.

[0030] In addition, side panels 5 are fixedly provided on both sides of the bracket 1 to ensure that the side of the plastic bag can be smoothly moved to the folding plate 6 after being placed on the top thereof.

[0031] Specifically, the plastic bag is first placed on the top of the bracket 1 and the two sides of the plastic bag are respectively located above the two side plates 5, and then the No. 1 conveyor 2 and the No. 2 conveyor 3 are driven to clamp and convey the plastic bag. When the side edge of the plastic bag moves to the top of the folding plate 6, it stops moving, and the plastic bag is located below the folding rod 9. Then the servo motor 10 is driven, and the servo motor 10 drives the rotating rod 13 to rotate, and the rotating rod 13 drives the connecting plate 14 to rotate. The connecting plate 14 drives the folding plate 6 to rotate through the fixed rod 12. At this time, the folding plate 6 will drive the side edge of the plastic bag to move to realize the folding operation and use the folding rod 9 as the folding line to ensure the smooth realization of the folding operation. Then the servo motor 10 is reversed to reset the folding plate 6 and then reversely drive the No. 1 conveyor 2 and the No. 2 conveyor 3 to move the plastic bag out. The structure is simple and the operation is convenient, which is convenient for practical use.

[0032] However, as is well known to those skilled in the art, the working principles and wiring methods of conveyor No. 1 2, conveyor No. 2 and servo motor 10 are commonplace, and are conventional means or common knowledge, so they will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0033] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Plastic bag folding device, characterized in that: include: A bracket (1), wherein an L-shaped mounting plate (4) is fixedly provided on the top of the bracket (1); A folding assembly is used for folding a plastic bag, the folding assembly is arranged on both sides of a bracket (1), the folding assembly comprises two folding plates (6), one end of each side of the bracket (1) is fixedly provided with a mounting bar (8), one end of the mounting bar (8) is rotatably provided with a rotating rod (13), the outer wall of the rotating rod (13) is fixedly sleeved with a connecting plate (14), one side of the connecting plate (14) is fixedly provided with a fixing rod (12), and the two folding plates (6) are respectively fixedly provided at one end of the two fixing rods (12); A driving assembly is used for driving the plastic bag to move, and the driving assembly is arranged inside the bracket (1).

2. The plastic bag folding device according to claim 1, characterized in that: The folding assembly further comprises a folding rod (9), wherein two folding rods (9) are respectively fixedly arranged above the top of the bracket (1) on both sides, and a groove (7) is provided on the top of the folding plate (6) and on one side close to the folding rod (9), and the groove (7) is matched with the adjacent folding rod (9).

3. The plastic bag folding device according to claim 2, characterized in that: A bottom plate (11) is fixedly provided at both ends of one side of the bracket (1), a servo motor (10) is fixedly provided on the top of the bottom plate (11), and an output shaft of the servo motor (10) is fixedly provided to one end of a rotating rod (13) on the same side.

4. The plastic bag folding device according to claim 1, characterized in that: The driving assembly comprises a No. 1 conveyor (2) fixedly arranged inside the bracket (1).

5. The plastic bag folding device according to claim 4, characterized in that: The driving assembly further comprises a No. 2 conveyor (3) fixedly arranged on the top inner wall of the L-shaped mounting plate (4), and the No. 2 conveyor (3) is located above the No. 1 conveyor (2).

6. The plastic bag folding device according to claim 1, characterized in that: Side panels (5) are fixedly provided on both sides of the bracket (1), and the two side panels (5) are respectively matched with two folding plates (6).

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