Fully biodegradable thermal shrinkage film blowing device

Abstract

The utility model provides a fully biodegradable thermal shrinkage film blowing device, and belongs to the technical field of film blowing machines. According to the structure of the device, a vertical groove and a transverse groove are formed in an installation base, a positioning roller is installed in the vertical groove, a first sliding block is arranged in the transverse groove, a transverse hydraulic cylinder is installed on the installation base, the free end of the transverse hydraulic cylinder is connected with the first sliding block, a first tensioning roller is installed on the first sliding block, and a sliding rail is fixedly connected to the installation base. A second sliding block is arranged on the sliding rail, a vertical hydraulic cylinder is connected between the sliding rail and the second sliding block, and a second tensioning roller is installed on the second sliding block. The conveying and winding mechanism of the film blowing equipment is innovatively improved, a guiding and supporting structure is additionally arranged on one side of the downstream winding roller, and a bidirectional tension adjusting mechanism is arranged in the middle of the A-shaped frame. According to the utility model, the tension and the adjustment of the film breadth on the winding path are more convenient, the working efficiency is improved, and the equipment function is perfected.

Description

Technical Field

[0001] This utility model relates to the field of blown film machine technology, specifically a blown film device for a fully biodegradable heat shrinkable film. Background Technology

[0002] A blown film machine is a device that heats and melts raw materials such as PE, POF, and PVC and then blows them into a thin film. It is also used to form fully biodegradable heat-shrinkable films. A typical blown film extrusion unit includes a screw extruder, die head, dies, air ring, cooling device, bubble stabilizer, and winding mechanism.

[0003] In terms of process, the mixed biomass raw materials are added to a screw extruder. When the material comes into contact with the screw thread, the rotating thread generates a thrust perpendicular to the thread surface, pushing the material forward. During this pushing process, the material gradually melts due to friction between the material and the screw, between the material and the barrel, and collisions between particles, as well as external heating of the barrel. The molten material is filtered through the die head to remove impurities and exits from the die head. It is then cooled by the air ring, inflated, and passed through the herringbone plate and traction rollers to roll the finished film into a cylinder. The winding mechanism is one of the core components of the blown film device. On the one hand, it guides and conveys the film, and on the other hand, it provides traction force to unwind and flatten the film. In existing technologies, the conventional winding mechanism of blown film devices is a fixed design, and its fine-tuning is relatively cumbersome, especially in the section between the herringbone frame and the cylinder. Since the film is not yet fully shaped, its tension directly affects the forming effect. In addition, the film direction in this area is generally a turning position, so adjustments are often required based on process conditions to achieve tension or loosening. In the existing technology, due to the limitations of the device structure, the adjustment process is cumbersome and time-consuming, which is not conducive to improving process efficiency. Summary of the Invention

[0004] The technical problem this invention aims to solve is that the winding mechanism of conventional blown film devices is not easy to adjust.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution:

[0006] A fully biodegradable heat shrinkable film blowing device includes a support platform, a guide arm, a support arm, a take-up roller, an inclined frame, a frame, a top frame, a V-frame, a mounting base, a vertical groove, a positioning roller, a horizontal groove, a first slider, a horizontal hydraulic cylinder, a first tension roller, a slide rail, a second slider, a vertical hydraulic cylinder, a second tension roller, a base, and an air ring. The guide arm is fixedly connected to the support platform, and the support arm is fixedly connected to the inner middle of the guide arm. The take-up roller is rotatably connected to the support platform behind the support arm. An inclined frame is located on the support platform behind the take-up roller. The frame is located behind the support platform. A top frame is fixedly connected to the frame. A V-shaped frame is provided on the upper middle part of the top frame. A mounting base is fixedly connected to the top of the top frame. The mounting base has vertical and horizontal grooves. A positioning roller is installed in the vertical groove. A first slider is provided in the horizontal groove. A horizontal hydraulic cylinder is installed on the mounting base. The free end of the horizontal hydraulic cylinder is connected to the first slider. A first tensioning roller is installed on the first slider. A slide rail is fixedly connected to the mounting base. A second slider is provided on the slide rail. A vertical hydraulic cylinder is connected between the slide rail and the second slider. A second tensioning roller is installed on the second slider. A base is provided at the bottom of the frame. An air ring is provided on the base.

[0007] Preferably, the extruder of the blown film device is also mounted on the base, and the output end of the extruder is provided with a die head and connected to the air ring.

[0008] Preferably, the tilting frame is fixedly connected to the support platform.

[0009] Preferably, the tilting frame is rotatably connected to the support platform, and the pivot between the tilting frame and the support platform is locked by a nut.

[0010] Preferably, guide rollers are provided on the inclined frame and on the front side of the guide arm, and raised textures are provided on the surface of the guide rollers and the surface of the winding roller.

[0011] Preferably, a platform is fixedly connected to the top outer periphery of the frame, a fence is fixedly connected to the outer edge of the platform, and a ladder is connected between the ground and the platform.

[0012] Preferably, limit blocks are provided at both ends of the horizontal groove, and a stop bar is intercepted at the port of the vertical groove. One side of the stop bar is rotatably connected to the mounting base, and the other side of the stop bar is fixedly connected to the mounting base by bolts and nuts.

[0013] In the above technical solution, the support platform serves to support and fix the downstream part of the winding mechanism; the guide arm restricts the two sides of the film width, and the support arm supports the local width of the film; the winding roller drives the film to travel; the tilting frame guides the film from the A-frame to the winding roller; the frame and top frame are the supporting structures for the upstream part of the blown film device; the base is equipped with an extruder that heats and melts the material and sends it to the die head. After being output from the die head, it is blown upward under the action of the air ring, guided by the rear half of the A-frame, and then enters the tensioning guide mechanism, and is then sent to the front half of the A-frame, and after being guided, it arrives at the tilting frame. In the above-mentioned tensioning guide mechanism, the mounting base is provided with a vertical groove and a horizontal groove. The vertical groove is used to install the positioning roller, and its position is kept fixed; the first slider in the horizontal groove carries the first tensioning roller, and its position can be adjusted by the horizontal hydraulic cylinder; the second slider on the slide rail carries the second tensioning roller, and its position can be adjusted by the vertical hydraulic cylinder; based on the adjustment of the positions of the two tensioning rollers, the film width can be fully tensioned, and the direction angle can be finely adjusted.

[0014] This invention provides a fully biodegradable heat-shrinkable film blowing device. The technical solution innovatively improves the conveying and winding mechanism of the blown film equipment by adding a guiding and supporting structure to one side of the downstream winding roller and a bidirectional tension adjustment mechanism in the middle of the A-frame. Applying this invention makes the tensioning and adjustment of the film width along the winding path more convenient, improves work efficiency, and enhances equipment functionality. Attached Figure Description

[0015] Figure 1 This is a perspective view of the entire utility model viewed from one angle;

[0016] Figure 2 This is a perspective view of the entire utility model from another angle;

[0017] Figure 3 This is a perspective view of the entire utility model from another angle;

[0018] Figure 4 This is a partial perspective view of the support platform position in this utility model;

[0019] Figure 5 This is a partial perspective view of the top frame position in this utility model;

[0020] In the picture:

[0021] 1. Support platform; 2. Guide arm; 3. Support arm; 4. Take-up roller.

[0022] 5. Inclined frame 6. Machine frame 7. Top frame 8. A-frame

[0023] 9. Mounting base; 10. Vertical groove; 11. Positioning roller; 12. Horizontal groove

[0024] 13. First slider; 14. Horizontal hydraulic cylinder; 15. First tension roller; 16. Slide rail

[0025] 17. Second slider; 18. Vertical hydraulic cylinder; 19. Second tension roller; 20. Base.

[0026] 21. Wind ring 22. Platform 23. Human ladder 24. Fence. Detailed Implementation

[0027] The specific embodiments of this utility model will be described in detail below. To avoid excessive and unnecessary details, well-known structures or functions will not be described in detail in the following embodiments. The approximate language used in the following embodiments can be used for quantitative descriptions, indicating that a certain degree of variation in quantity is permissible without changing the basic function. Unless otherwise defined, the technical and scientific terms used in the following embodiments have the same meaning as commonly understood by those skilled in the art to which this utility model pertains.

[0028] Example 1

[0029] A fully biodegradable heat-shrinkable film blowing device, such as Figures 1-5 As shown, the system includes a support platform 1, a guide arm 2, a support arm 3, a take-up roller 4, an inclined frame 5, a frame 6, a top frame 7, a V-frame 8, a mounting base 9, a vertical groove 10, a positioning roller 11, a horizontal groove 12, a first slider 13, a horizontal hydraulic cylinder 14, a first tension roller 15, a slide rail 16, a second slider 17, a vertical hydraulic cylinder 18, a second tension roller 19, a base 20, and an air ring 21. The guide arm 2 is fixedly connected to the support platform 1, and the support arm 3 is fixedly connected to the inner middle of the guide arm 2. The take-up roller 4 is rotatably connected to the support platform 1, located behind the support arm 3. The inclined frame 5 is located on the support platform 1, behind the take-up roller 4. The frame 6 is located behind the support platform 1, and the top frame 7 is fixedly connected to the frame 6. A V-frame 8 is provided on the upper side of the middle part of the top frame 7. A mounting base 9 is fixedly connected to the top of the top frame 7. A vertical groove 10 and a horizontal groove 12 are provided on the mounting base 9. A positioning roller 11 is installed in the vertical groove 10. A first slider 13 is provided in the horizontal groove 12. A horizontal hydraulic cylinder 14 is installed on the mounting base 9. The free end of the horizontal hydraulic cylinder 14 is connected to the first slider 13. A first tension roller 15 is installed on the first slider 13. A slide rail 16 is fixedly connected to the mounting base 9. A second slider 17 is provided on the slide rail 16. A vertical hydraulic cylinder 18 is connected between the slide rail 16 and the second slider 17. A second tension roller 19 is installed on the second slider 17. A base 20 is provided at the lower part of the frame 6. An air ring 21 is provided on the base 20.

[0030] Among them, the support platform 1 is used to support and fix the downstream part of the winding mechanism; the guide arm 2 restricts the two sides of the film width, and the support arm 3 supports the local width of the film; the winding roller 4 drives the film to move forward; the tilting frame 5 guides the film from the herringbone frame 8 to the winding roller 4; the frame 6 and the top frame 7 are the support structures for the upstream part of the blown film device; the base 20 is equipped with an extruder to heat-melt the material and send it to the die head. After being output from the die head, it is blown upward under the action of the air ring 21. After being guided by the rear half of the herringbone frame 8, it enters the tensioning and guiding mechanism, and then is sent to the front half of the herringbone frame 8. After being guided, it arrives at the tilting frame 5. In the above-mentioned tensioning guide mechanism, the mounting base 9 is provided with a vertical groove 10 and a horizontal groove 12. The vertical groove 10 is used to install the positioning roller 11, and its position is kept fixed. The first slider 13 in the horizontal groove 12 carries the first tensioning roller 15 and can be pushed and adjusted by the horizontal hydraulic cylinder 14. The second slider 17 on the slide rail 16 carries the second tensioning roller 19 and can be pushed and adjusted by the vertical hydraulic cylinder 18. Based on the adjustment of the positions of the two tensioning rollers, the film width can be fully tensioned, and the direction angle can be finely adjusted.

[0031] Example 2

[0032] A fully biodegradable heat-shrinkable film blowing device, such as Figures 1-5As shown, the system includes a support platform 1, a guide arm 2, a support arm 3, a take-up roller 4, an inclined frame 5, a frame 6, a top frame 7, a V-frame 8, a mounting base 9, a vertical groove 10, a positioning roller 11, a horizontal groove 12, a first slider 13, a horizontal hydraulic cylinder 14, a first tension roller 15, a slide rail 16, a second slider 17, a vertical hydraulic cylinder 18, a second tension roller 19, a base 20, and an air ring 21. The guide arm 2 is fixedly connected to the support platform 1, and the support arm 3 is fixedly connected to the inner middle of the guide arm 2. The take-up roller 4 is rotatably connected to the support platform 1, located behind the support arm 3. The inclined frame 5 is located on the support platform 1, behind the take-up roller 4. The frame 6 is located behind the support platform 1, and the top frame 7 is fixedly connected to the frame 6. A herringbone frame 8 is provided on the upper side of the middle part of the top frame 7. A mounting base 9 is fixedly connected to the top of the top frame 7. The mounting base 9 has a vertical groove 10 and a horizontal groove 12. A positioning roller 11 is installed in the vertical groove 10, and a first slider 13 is installed in the horizontal groove 12. A horizontal hydraulic cylinder 14 is installed on the mounting base 9, and the free end of the horizontal hydraulic cylinder 14 is connected to the first slider 13. A first tension roller 15 is installed on the first slider 13. A slide rail 16 is fixedly connected to the mounting base 9, and a second slider 17 is provided on the slide rail 16. A vertical hydraulic cylinder 18 is connected between the slide rail 16 and the second slider 17. A second tension roller 19 is installed on the second slider 17. A base 20 is provided at the lower part of the frame 6, and an air ring 21 is provided on the base 20. The extruder of this blown film device is also installed on the base 20. The output end of the extruder has a die head and is connected to the air ring 21. An inclined frame 5 is fixedly connected to the support platform 1. The tilting frame 5 is rotatably connected to the support platform 1, and the shaft between the tilting frame 5 and the support platform 1 is locked by a nut. Guide rollers are provided on the tilting frame 5 and the front side of the guide arm 2, and the surfaces of the guide rollers and the winding roller 4 are textured. A platform 22 is fixedly connected to the outer periphery of the top of the frame 6, and a fence 24 is fixedly connected to the outer edge of the platform 22. A ladder 23 is connected between the ground and the platform 22. Limiting blocks are provided at both ends of the horizontal groove 12, and a stop bar is intercepted at the end of the vertical groove 10. One side of the stop bar is rotatably connected to the mounting base 9, and the other side of the stop bar is fixedly connected to the mounting base 9 by bolts and nuts.

[0033] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the scope of this utility model application should be included within the protection scope of this utility model.

Claims

1. A fully biodegradable heat-shrinkable film blowing device, characterized in that... Includes a support platform (1), guide arm (2), support arm (3), take-up roller (4), tilting frame (5), frame (6), top frame (7), A-frame (8), mounting base (9), vertical groove (10), positioning roller (11), horizontal groove (12), first slider (13), horizontal hydraulic cylinder (14), first tension roller (15), slide rail (16), second slider (17), vertical hydraulic cylinder (18), second tension roller (19), and base. (20), wind ring (21), wherein a guide arm (2) is fixedly connected to the support platform (1), a support arm (3) is fixedly connected to the inner middle of the guide arm (2), a take-up roller (4) is rotatably connected to the support platform (1) behind the support arm (3), an inclined frame (5) is provided on the support platform (1) behind the take-up roller (4), and a frame (6) is located behind the support platform (1), and a top frame is fixedly connected to the frame (6). (7) A V-frame (8) is provided on the upper side of the middle part of the top frame (7). A mounting base (9) is fixedly connected to the top of the top frame (7). A vertical groove (10) and a horizontal groove (12) are provided on the mounting base (9). A positioning roller (11) is installed in the vertical groove (10). A first slider (13) is provided in the horizontal groove (12). A transverse hydraulic cylinder (14) is installed on the mounting base (9). The free end of the transverse hydraulic cylinder (14) is connected to the first slider (13). Next, a first tension roller (15) is installed on the first slider (13), a slide rail (16) is fixedly connected to the mounting base (9), a second slider (17) is provided on the slide rail (16), a vertical hydraulic cylinder (18) is connected between the slide rail (16) and the second slider (17), a second tension roller (19) is installed on the second slider (17), a base (20) is provided at the lower part of the frame (6), and an air ring (21) is provided on the base (20).

2. The fully biodegradable heat-shrinkable film blowing device according to claim 1, characterized in that, The extruder of the blown film device is also mounted on the base (20), and the output end of the extruder is provided with a die head and connected to the air ring (21).

3. The fully biodegradable heat-shrinkable film blowing device according to claim 1, characterized in that, The tilting frame (5) is fixedly connected to the support platform (1).

4. The fully biodegradable heat-shrinkable film blowing device according to claim 1, characterized in that, The tilting frame (5) is rotatably connected to the support platform (1), and the shaft between the tilting frame (5) and the support platform (1) is locked by a nut.

5. The fully biodegradable heat-shrinkable film blowing device according to claim 1, characterized in that, Guide rollers are provided on the tilting frame (5) and the front side of the guide arm (2), and raised textures are provided on the surface of the guide rollers and the surface of the winding roller (4).

6. The fully biodegradable heat-shrinkable film blowing device according to claim 1, characterized in that, A platform (22) is fixedly connected to the top outer periphery of the frame (6), a fence (24) is fixedly connected to the outer edge of the platform (22), and a ladder (23) is connected between the ground and the platform (22).

7. The fully biodegradable heat-shrinkable film blowing device according to claim 1, characterized in that, Limiting blocks are provided at both ends of the horizontal groove (12), and a stop bar is intercepted at the port of the vertical groove (10). One side of the stop bar is rotatably connected to the mounting base (9), and the other side of the stop bar is fixedly connected to the mounting base (9) by bolts and nuts.

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