Plastic packaging bag production film blowing machine

Abstract

This utility model discloses a blown film machine for producing plastic packaging bags, belonging to the technical field of blown film machines. It includes a frame, with a blown film mechanism fixedly mounted on the top of the frame. The blown film mechanism is used to blow film into the plastic packaging bag. A fixed plate is fixedly connected to the top of the frame, and a rotating plate is rotatably mounted inside the fixed plate. A feeding plate is slidably connected to the inner wall of the rotating plate. An adjusting mechanism is located inside the feeding plate to adjust the pressure of the feeding plate. A pressing mechanism is located inside the fixed plate to prevent the film from jumping. This utility model utilizes a blown film mechanism to blow film into the plastic packaging bag. Multiple feeding plates rotate and transport the film. The worker adjusts the pressure of the feeding plates on the film by widening or contracting the adjusting mechanism, while the pressing mechanism presses the film to prevent jumping during transport and improve transport stability.

Description

Technical Field

[0001] This utility model relates to the field of blown film machine technology, and in particular to a blown film machine for producing plastic packaging bags. Background Technology

[0002] A blown film machine for producing plastic packaging bags is a device that heats and melts plastic particles and then blows them into a thin film. It is mainly used to produce high-end packaging bags for food, medicine, agriculture and other fields.

[0003] Plastic packaging bag production blown film machines use feeding rollers to feed film. However, traditional feeding rollers have fixed pressure, which can easily cause local overpressure or slippage. Adjusting the pressure requires workers to use tools to disassemble the feeding rollers, which is time-consuming and laborious. In addition, the film pressure of traditional feeding rollers is prone to instantaneous changes during the film conveying process, which can cause the film to jump. Utility Model Content

[0004] The purpose of this utility model is to provide a blown film production machine for plastic packaging bags to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a blown film production machine for plastic packaging bags, comprising:

[0006] A frame, on the top of which is fixedly mounted a film blowing mechanism, which is used to produce a film by a blowing process;

[0007] A fixed plate is fixedly connected to the top of the frame, and a rotating plate is rotatably arranged inside the fixed plate. A feeding plate is slidably connected to the inner wall of the rotating plate.

[0008] An adjustment mechanism is provided inside the feeding plate, and the adjustment mechanism is used to adjust the pressure of the feeding plate;

[0009] An extrusion mechanism is disposed inside a fixed plate and is used to prevent the film from jumping.

[0010] Preferably, the adjustment mechanism includes a drive component and an adjustment component, the drive component including:

[0011] A threaded rod is rotatably connected to the inner wall of a fixed plate. There are two rotating plates arranged horizontally and symmetrically, with one of the rotating plates rotatably sleeved on the outer wall of the threaded rod.

[0012] A rotating shaft is rotatably connected to the inner wall of a fixed plate and fixedly connected to the outer wall of another rotating plate. A driving component is fixedly connected to the outer wall of the fixed plate, and the driving component is used to drive the rotating shaft to rotate.

[0013] Preferably, the adjustment component includes:

[0014] A movable block, which is threadedly sleeved onto the outer wall of a threaded rod;

[0015] A fixed block is fixedly sleeved on the outer wall of the threaded rod. A slider is slidably connected to the inner wall of the feeding plate. A second connecting rod is rotatably connected between the outer wall of the slider and the fixed block. A first connecting rod is rotatably connected between the middle of the outer wall of the second connecting rod and the moving block.

[0016] Preferably, a locking mechanism is provided on the outside of the threaded rod, the locking mechanism comprising:

[0017] A circular block is fixedly connected to the outer wall of a fixing plate, and bolts are threadedly connected to the inner wall of the fixing plate;

[0018] A collar is fixedly sleeved on the outer wall of the threaded rod. A limiting plate is fixedly connected to the bottom of the bolt. The limiting plate is slidably connected to the inner wall of the circular block. A throttle is fixedly connected to the threaded rod through the circular block.

[0019] Preferably, the extrusion mechanism includes an extrusion assembly and an elastic assembly, the extrusion assembly comprising:

[0020] A skateboard, which is slidably connected to the inner wall of a fixed plate;

[0021] A pressure roller, which is rotatably connected to the side of the slide plate away from the fixed plate.

[0022] Preferably, the elastic component includes:

[0023] A square plate, wherein the square plate is fixedly connected to the inner wall of a fixed plate;

[0024] A spring is fixedly connected between the square plate and the sliding plate.

[0025] Compared with the prior art, the technical effects of this utility model are as follows:

[0026] This invention utilizes a blown film mechanism to produce a film. Multiple feed plates rotate and transport the film. Workers adjust the pressure of the feed plates on the film by adjusting the mechanism to expand or contract the feed plates. At the same time, an extrusion mechanism is used to extrude the film to prevent it from jumping during transport and to improve transport stability. Attached Figure Description

[0027] Figure 1 This is a frontal three-dimensional structural diagram of the present utility model.

[0028] Figure 2 This is a three-dimensional structural diagram of the feeding plate of this utility model.

[0029] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the feeding plate of this utility model.

[0030] Figure 4 This is a three-dimensional sectional view of the fixing block of this utility model.

[0031] In the diagram: 1. Frame; 2. Film blowing mechanism; 3. Fixed plate; 4. Feeding plate; 5. Pressure roller; 6. Slide plate; 7. Spring; 8. Square plate; 9. Rotating plate; 10. Drive component; 11. Fixed block; 12. Threaded rod; 13. Rotary handle; 14. Moving block; 15. First connecting rod; 16. Slider; 17. Second connecting rod; 18. Collar; 19. Rotating shaft; 20. Bolt; 21. Limiting plate; 22. Circular block. Detailed Implementation

[0032] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] This utility model provides, for example Figures 1-4 The illustrated plastic packaging bag blowing machine includes a frame 1, a fixed plate 3, an adjustment mechanism, and an extrusion mechanism. A blowing mechanism 2 is fixedly mounted on the top of the frame 1. The blowing mechanism 2 includes a die head and a bubble stabilizer. The die head controls melt distribution and the initial shape of the film, while the bubble stabilizer maintains film bubble stability and assists in guiding and leveling. The blowing mechanism is used to produce film through a blowing process. The fixed plate 3 is fixedly connected to the top of the frame 1. A rotating plate 9 is rotatably mounted inside the fixed plate 3, and a feeding plate 4 is slidably connected to the inner wall of the rotating plate 9. The adjustment mechanism is located inside the feeding plate 4 and is used to adjust the pressure of the feeding plate 4. The extrusion mechanism is located inside the fixed plate 3 and is used to prevent the film from jumping. The feeding plate 4 is an arc-shaped plate. In actual use: the blowing mechanism 2 produces film through a blowing process; multiple feeding plates 4 rotate to transport the film; the worker uses the adjustment mechanism to widen or contract the feeding plates 4, adjusting the pressure of the feeding plates 4 on the film; simultaneously, the extrusion mechanism extrudes the film to prevent jumping during transport and improve transport stability.

[0034] In one aspect, the adjustment mechanism includes a drive assembly and an adjustment assembly. The drive assembly includes a threaded rod 12 and a rotating shaft 19. The threaded rod 12 is rotatably connected to the inner wall of the fixed plate 3. There are two rotating plates 9 arranged horizontally and symmetrically. One rotating plate 9 is rotatably sleeved on the outer wall of the threaded rod 12. The rotating shaft 19 is rotatably connected to the inner wall of the fixed plate 3 and fixedly connected to the outer wall of the other rotating plate 9. A drive component 10 is fixedly connected to the outer wall of the fixed plate 3. The drive component 10 is used to drive the rotating shaft 19 to rotate. The drive component 10 uses a commercially available servo motor. The adjustment assembly includes a moving block 14 and a fixed block 11. The moving block 14 is threadedly sleeved on the outer wall of the threaded rod 12, and the fixed block 11 is fixedly sleeved on the outer wall of the threaded rod 12. A slider 16 is slidably connected to the inner wall of the feeding plate 4. The outer wall of the slider 16 is connected to the fixed block 11. A second connecting rod 17 is rotatably connected. A first connecting rod 15 is rotatably connected between the middle of the outer wall of the second connecting rod 17 and the moving block 14. During the movement of the moving block 14, the first connecting rod 15 is squeezed. The first connecting rod 15 squeezes the second connecting rod 17 and rotates around the connection between the second connecting rod 17 and the fixed block 11. The second connecting rod 17 squeezes the slider 16 to move along the direction away from or close to the central axis of the threaded rod 12. In specific use: the worker holds down the feeding plate 4 and rotates the handle 13. The handle 13 drives the threaded rod 12 to rotate. The threaded rod 12 drives the moving block 14 to move. The moving block 14 moves horizontally under the limit of the first connecting rod 15. The first connecting rod 15 squeezes the second connecting rod 17. The second connecting rod 17 drives the feeding plate 4 to move through the slider 16, thereby adjusting the pressure of the feeding plate 4 on the film.

[0035] On the other hand, a locking mechanism is provided on the outside of the threaded rod 12. The locking mechanism includes a circular block 22 and a collar 18. The circular block 22 is fixedly connected to the outer wall of the fixing plate 3. The inner wall of the fixing plate 3 is threaded with a bolt 20. The collar 18 is fixedly sleeved on the outer wall of the threaded rod 12. The bottom of the bolt 20 is fixedly connected to a limit plate 21. The limit plate 21 is slidably connected to the inner wall of the circular block 22. The threaded rod 12 passes through the circular block 22 and is fixedly connected to a handle 13. In specific use: when it is necessary to fix the threaded rod 12, the worker rotates the bolt 20. The bolt 20 drives the limit plate 21 to move until the limit plate 21 abuts against the outer wall of the collar 18. The friction force is used to fix the angle of the collar 18, and the collar 18 fixes the angle of the threaded rod 12.

[0036] In addition, the extrusion mechanism includes an extrusion assembly and an elastic assembly. The extrusion assembly includes a slide plate 6 and a pressure roller 5. The slide plate 6 is slidably connected to the inner wall of the fixed plate 3, and the pressure roller 5 is rotatably connected to the side of the slide plate 6 away from the fixed plate 3. The elastic assembly includes a square plate 8 and a spring 7. The square plate 8 is fixedly connected to the inner wall of the fixed plate 3, and the spring 7 is fixedly connected between the square plate 8 and the slide plate 6.

[0037] In actual operation: The worker holds down the feeding plate 4 and rotates the handle 13. The handle 13 drives the threaded rod 12 to rotate, and the threaded rod 12 drives the moving block 14 to move. The moving block 14 moves horizontally under the limit of the first connecting rod 15. The first connecting rod 15 presses the second connecting rod 17. The second connecting rod 17 drives the feeding plate 4 to move through the slider 16, thereby adjusting the pressure of the feeding plate 4 on the film. When it is necessary to fix the threaded rod 12, the worker rotates the bolt 20. The bolt 20 drives the limiting plate 21 to move until the limiting plate 21 abuts against the outer wall of the collar 18. The friction force is used to fix the angle of the collar 18, and the collar 18 fixes the angle of the threaded rod 12.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A blown film production machine for plastic packaging bags, characterized in that, include: A frame (1) is provided with a blown film mechanism (2) fixedly installed on the top of the frame (1). The blown film mechanism is used to produce a film by blown film process. A fixed plate (3) is fixedly connected to the top of the frame (1). A rotating plate (9) is rotatably arranged inside the fixed plate (3). A feeding plate (4) is slidably connected to the inner wall of the rotating plate (9). An adjustment mechanism is provided inside the feeding plate (4) and is used to adjust the pressure of the feeding plate (4); The extrusion mechanism is located inside the fixed plate (3) and is used to prevent the film from jumping.

2. The blown film machine for producing plastic packaging bags according to claim 1, characterized in that, The adjustment mechanism includes a drive component and an adjustment component, the drive component including: The threaded rod (12) is rotatably connected to the inner wall of the fixed plate (3). There are two rotating plates (9) arranged horizontally and symmetrically, and one of the rotating plates (9) is rotatably sleeved on the outer wall of the threaded rod (12). A rotating shaft (19) is rotatably connected to the inner wall of a fixed plate (3). The rotating shaft (19) is fixedly connected to the outer wall of another rotating plate (9). A driving component (10) is fixedly connected to the outer wall of the fixed plate (3). The driving component (10) is used to drive the rotating shaft (19) to rotate.

3. The blown film production machine for plastic packaging bags according to claim 2, characterized in that, The adjustment component includes: A movable block (14) is threaded onto the outer wall of a threaded rod (12); A fixed block (11) is fixedly sleeved on the outer wall of the threaded rod (12). A slider (16) is slidably connected to the inner wall of the feeding plate (4). A second connecting rod (17) is rotatably connected between the outer wall of the slider (16) and the fixed block (11). A first connecting rod (15) is rotatably connected between the middle part of the outer wall of the second connecting rod (17) and the moving block (14).

4. A blown film production machine for plastic packaging bags according to claim 3, characterized in that, The threaded rod (12) is provided with a locking mechanism on its exterior, the locking mechanism comprising: A circular block (22) is fixedly connected to the outer wall of a fixing plate (3), and a bolt (20) is threadedly connected to the inner wall of the fixing plate (3). A collar (18) is fixedly sleeved on the outer wall of the threaded rod (12). A limiting plate (21) is fixedly connected to the bottom of the bolt (20). The limiting plate (21) is slidably connected to the inner wall of the circular block (22). The threaded rod (12) passes through the circular block (22) and is fixedly connected to a throttle (13).

5. A blown film production machine for plastic packaging bags according to claim 4, characterized in that, The extrusion mechanism includes an extrusion assembly and an elastic assembly, the extrusion assembly comprising: The sliding plate (6) is slidably connected to the inner wall of the fixed plate (3); The pressure roller (5) is rotatably connected to the side of the slide plate (6) away from the fixed plate (3).

6. A blown film production machine for plastic packaging bags according to claim 5, characterized in that, The elastic component includes: A square plate (8) is fixedly connected to the inner wall of a fixed plate (3); Spring (7) is fixedly connected between square plate (8) and sliding plate (6).

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