Automatic bag pulling mechanism for plastic bag production

Abstract

The utility model belongs to the field of plastic bag production, particularly relates to an automatic bag pulling mechanism for plastic bag production, and aims to solve the problems that an existing automatic bag pulling mechanism is poor in adaptability and flexibility and insufficient in operation safety, according to the scheme, the automatic bag pulling mechanism comprises a fixed base, and mounting side plates are fixedly connected to the two sides of the fixed base; a third rotating shaft and a driving bag pulling roller are rotationally connected between the two installation side plates and driven by a motor, installation bases and first rotating shafts are fixed to the outer sides of the two installation side plates, the first rotating shafts are rotationally connected with connecting plates, and a feeding mechanism is arranged between the connecting plates. The safety risk in the operation process is reduced, the operation stability of the mechanism is ensured, meanwhile, the rotating disc is used for adjusting the distance to adapt to plastic bags of different materials and thicknesses, the adaptability and flexibility of the mechanism are improved, the production cost is reduced, and the application range is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bag production, in particular to an automatic bag pulling mechanism for plastic bag production. Background Art

[0002] Plastic bags are an indispensable packaging material in daily life. Their production efficiency and quality are directly related to production costs and market competitiveness. In the production process of plastic bags, the automatic bag pulling mechanism plays a vital role. It is responsible for smoothly pulling the formed plastic bags out of the mold and performing subsequent sorting and winding.

[0003] Most of the existing automatic bag pulling mechanisms are designed for plastic bags of specific types and specifications. They have poor adaptability and flexibility for plastic bags of different materials and thicknesses. In addition, the existing automatic bag pulling mechanisms require manual assistance in loading, but some mechanisms do not fully consider the safety factors of operators in their design. Therefore, an automatic bag pulling mechanism for plastic bag production is proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings that most of the automatic bag pulling mechanisms in the prior art are designed for plastic bags of specific types and specifications, and have poor adaptability and flexibility for plastic bags of different materials and thicknesses. In addition, the existing automatic bag pulling mechanisms require manual assistance in loading, but some mechanisms do not fully consider the safety factors of operators in their design. An automatic bag pulling mechanism for plastic bag production is proposed.

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

[0006] An automatic bag pulling mechanism for plastic bag production comprises a fixed base, both sides of the fixed base are fixedly connected to mounting side plates, the sides of the two mounting side plates that are close to each other are rotatably connected to the same rotating shaft three, the circumferential outer wall of the rotating shaft three is fixedly connected to an active bag pulling roller, one side of one of the mounting side plates is fixedly provided with a motor, the output shaft of the motor rotates through one side of the mounting side plate and is fixedly connected to one end of the rotating shaft three, the sides of the two mounting side plates that are away from each other are fixedly connected to the mounting base, the sides of the two mounting bases that are away from each other are fixedly connected to rotating shaft one, the circumferential outer wall of the rotating shaft one is rotatably connected to a connecting plate, and a feeding mechanism for cooperating with the active bag pulling roller to perform bag pulling operations is provided between the sides of the two connecting plates that are close to each other.

[0007] In one possible design, the loading mechanism includes two operating boxes, both of which are fixedly connected to one side of the corresponding connecting plate, and the inner walls on both sides of the operating boxes are slidingly connected to the same rotating seat, and the sides of the two rotating seats close to each other are rotatably connected to the same rotating shaft 2, and the circumferential outer wall of the rotating shaft 2 is fixedly connected to the driven bag pulling roller.

[0008] In a possible design, one side of the mounting side plate is provided with a through arc-shaped limit groove 1 and a limit groove 2, the limit groove 1 is connected to the limit groove 2, and the rotating shaft 2 passes through the two limit grooves 1 and the two limit grooves 2.

[0009] In one possible design, a slide groove 1 is provided at the bottom of one of the operating boxes, a slide groove 2 is provided on one side of the operating box, the slide groove 2 is connected to the slide groove 1, a locking block is slidably connected in the slide groove 1, a lifting handle is fixedly connected to one side of the locking block, the lifting handle slides through the slide groove 2, a locking groove is provided at the top of the mounting base corresponding to the operating box, and the locking block is locked in the locking groove.

[0010] In a possible design, the top of the operation box provided with the engaging block is rotatably connected to a threaded rod, the threaded rod rotatably passes through the top of the corresponding operation box, and the threaded rod threadably passes through the corresponding rotating seat.

[0011] In a possible design, a turntable for facilitating the rotation of the threaded rod is fixedly connected to the top of the threaded rod.

[0012] When the driven bag pulling roller is moved to the appropriate position, that is, the appropriate extrusion force is adjusted, the motor is started to realize automatic belt pulling operation.

[0013] In the utility model, the automatic bag pulling mechanism for plastic bag production can easily fix and release the operation box and the driven bag pulling roller by pulling the handle and the clamping block, preventing the high-speed rotating active bag pulling roller from contacting during the loading process, thereby effectively reducing the safety risks during operation. At the same time, the stable connection between the clamping block and the clamping slot also ensures the stability of the mechanism during operation, further ensuring the safety of the operator.

[0014] In the utility model, the automatic bag-pulling mechanism for plastic bag production can easily adjust the distance between the active bag-pulling roller and the driven bag-pulling roller by using a turntable through the arrangement of a threaded rod and a rotating seat, thereby adapting to plastic bags of different materials and thicknesses. This design breaks the limitation that traditional automatic bag-pulling mechanisms are only suitable for plastic bags of specific types and specifications, significantly improves the adaptability and flexibility of the mechanism, reduces production costs, and broadens the scope of application.

[0015] In the utility model, the fixing and release of the operating box and the driven bag pulling roller can be easily achieved, preventing the high-speed rotating active bag pulling roller from contacting during the loading process, thereby effectively reducing the safety risks during the operation process. At the same time, the firm connection between the locking block and the card slot also ensures the stability of the mechanism during operation, further protecting the safety of the operator. The turntable can also be used to easily adjust the distance between the active bag pulling roller and the driven bag pulling roller to adapt to plastic bags of different materials and thicknesses. This design breaks the limitation that the traditional automatic bag pulling mechanism is only suitable for plastic bags of specific types and specifications, significantly improves the adaptability and flexibility of the mechanism, reduces production costs, and broadens the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a left view of the overall structure of an automatic bag pulling mechanism for plastic bag production proposed by the utility model;

[0017] Figure 2 This is a right view of the overall structure of an automatic bag pulling mechanism for plastic bag production proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of an automatic bag-pulling mechanism for plastic bag production proposed by the present invention;

[0019] Figure 4 This is a cross-sectional view of the internal structure of an automatic bag-pulling mechanism for plastic bag production proposed by the utility model.

[0020] In the figure: 1. Fixed base; 2. Installing side panel; 3. Installing base; 4. Rotating shaft 1; 5. Connecting plate; 6. Operation box; 7. Rotating seat; 8. Rotating shaft 2; 9. Driven bag pulling roller; 10. Rotating shaft 3; 11. Active bag pulling roller; 12. Slide 1; 13. Slide 2; 14. Engaging block; 15. Lifting handle; 16. Threaded rod; 17. Turntable; 18. Motor; 19. Limiting slot 1; 20. Limiting slot 2. DETAILED DESCRIPTION

[0021] 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.

[0022] Example 1

[0023] Reference Figure 1-Figure 4 A bag-pulling mechanism includes a fixed base 1, which serves as the supporting structure for the entire mechanism. Two mounting side panels 2 are fixedly connected to the base 1 on either side. The inner sides of the two mounting side panels 2 are rotatably connected to active bag-pulling rollers 11 via a third rotating shaft 10. The active bag-pulling rollers 11 are driven by a motor 18 mounted on one side of one of the mounting side panels 2. The output shaft of the motor 18 passes through the mounting side panels 2 and is fixedly connected to one end of the third rotating shaft 10.

[0024] A mounting base 3 is fixedly connected to the outside of each mounting side panel 2. A rotating shaft 1 4 is fixedly connected to the side of the mounting base 3 away from the mounting side panel 2. The outer wall of the rotating shaft 1 4 is rotatably connected to a connecting plate 5. The inner sides of the two connecting plates 5 are connected by a feeding mechanism, which includes two operating boxes 6. A rotating base 7 is slidably connected to the inner wall of each operating box 6. A driven bag-pulling roller 9 is connected between the two rotating bases 7 via a rotating shaft 2 8.

[0025] In addition, each mounting side panel 2 is provided with an arc-shaped limit groove 19 and a limit groove 2 20, which are connected to each other, and the rotating shaft 2 8 can pass through these two limit grooves to facilitate the adjustment of the driven bag pulling roller 9 in the vertical and horizontal directions.

[0026] A first slide 12 and a second slide 13 are respectively provided on the bottom and one side of one of the operating boxes 6. A snap-fit ​​block 14 is slidably connected to the first slide 12. A lifting handle 15 is fixedly connected to one side of the snap-fit ​​block 14. The lifting handle 15 can slide through the second slide 13. A snap-fit ​​block 14 is provided on the top of the mounting base 3 corresponding to the operating box 6. The snap-fit ​​block 14 can be snapped into this slot, thereby fixing the operating box 6 and the connecting plate 5 to the mounting base 3.

[0027] At the same time, a threaded rod 16 is rotatably connected to the top of the operating box 6. The threaded rod 16 can pass through the top of the operating box 6 and threadedly penetrate the rotating seat 7. A rotating disk 17 is fixedly connected to the top of the threaded rod 16 for convenient rotation of the threaded rod 16.

[0028] This application can be used in the field of plastic bag production, and can also be used in other fields applicable to this application.

[0029] Example 2

[0030] refer to Figure 1-Figure 4 , improved on the basis of embodiment 1: an automatic bag pulling mechanism for plastic bag production, which is applied to the field of plastic bag production, and the top of the threaded rod 16 is fixedly connected to the turntable 17 to facilitate the rotation of the threaded rod 16.

[0031] However, as is well known to those skilled in the art, the working principle and wiring method of the motor 18 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0032] 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. An automatic bag-pulling mechanism for producing plastic bags, comprising a fixed base (1), characterized in that: Both sides of the fixed base (1) are fixedly connected with mounting side plates (2), and the sides of the two mounting side plates (2) close to each other are rotatably connected to the same rotating shaft three (10), and the circumferential outer wall of the rotating shaft three (10) is fixedly connected to the active bag pulling roller (11), and one side of one of the mounting side plates (2) is fixedly provided with a motor (18), and the output shaft of the motor (18) rotates through one side of the mounting side plate (2) and is fixedly connected to one end of the rotating shaft three (10), and the sides of the two mounting side plates (2) away from each other are fixedly connected with the mounting base (3), and the sides of the two mounting bases (3) away from each other are fixedly connected with the rotating shaft one (4), and the circumferential outer wall of the rotating shaft one (4) is rotatably connected to the connecting plate (5), and a feeding mechanism for cooperating with the active bag pulling roller (11) to perform bag pulling operations is provided between the sides of the two connecting plates (5) close to each other.

2. The automatic bag-pulling mechanism for plastic bag production according to claim 1, characterized in that: The feeding mechanism comprises two operating boxes (6), both of which are fixedly connected to one side of the corresponding connecting plate (5), the inner walls on both sides of the operating boxes (6) are slidably connected to the same rotating seat (7), the sides of the two rotating seats (7) close to each other are rotatably connected to the same rotating shaft 2 (8), and the circumferential outer wall of the rotating shaft 2 (8) is fixedly connected to a driven bag-pulling roller (9).

3. The automatic bag-pulling mechanism for producing plastic bags according to claim 2, characterized in that: One side of the mounting side plate (2) is provided with a through arc-shaped limiting groove 1 (19) and a through arc-shaped limiting groove 2 (20), wherein the limiting groove 1 (19) is connected to the limiting groove 2 (20), and the rotating shaft 2 (8) passes through the two limiting grooves 1 (19) and the two limiting grooves 2 (20).

4. The automatic bag pulling mechanism for plastic bag production according to claim 2, characterized in that: A first slide groove (12) is provided at the bottom of one of the operation boxes (6), and a second slide groove (13) is provided on one side of the operation box (6). The second slide groove (13) is communicated with the first slide groove (12). A locking block (14) is slidably connected in the first slide groove (12), and a lifting handle (15) is fixedly connected to one side of the locking block (14). The lifting handle (15) slides through the second slide groove (13). A locking groove is provided on the top of the mounting base (3) corresponding to the operation box (6), and the locking block (14) is locked in the locking groove.

5. The automatic bag-pulling mechanism for producing plastic bags according to claim 4, characterized in that: The top of the operating box (6) provided with the engaging block (14) is rotatably connected to a threaded rod (16), the threaded rod (16) rotatably passes through the top of the corresponding operating box (6), and the threaded rod (16) threadably passes through the corresponding rotating seat (7).

6. The automatic bag pulling mechanism for plastic bag production according to claim 5, characterized in that: A turntable (17) is fixedly connected to the top of the threaded rod (16) for facilitating the rotation of the threaded rod (16).

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