PVC vertical main machine rotary film blowing machine

Abstract

The application discloses a PVC vertical main machine rotary film blowing machine and relates to the PVC processing technical field.The PVC vertical main machine rotary film blowing machine comprises a mounting frame, a rotary main machine is arranged below the mounting frame, a blanking box for blanking recycled plastic particles is arranged on the side of the rotary main machine, a humanoid frame for assisting the limiting of a film is arranged above the mounting frame, a fixed plate is fixedly connected to the mounting frame, and a blowing mechanism is arranged on the fixed plate.The height of the auxiliary block increases along the moving direction of the slide rod.When the wind force generated by the blowing mechanism is different, the position of the abutting plate is different, and the abutting block will abut against the auxiliary block with different heights, so that the moving position of the cleaning cotton can be adjusted, the cleaning cotton can gradually penetrate into the surface of the film during the abutting process, secondary dust removal is achieved, the dust removal strength is enhanced along with the movement of the slide rod, and the surface of the film can be thoroughly cleaned.

Description

Technical Field

[0001] This invention relates to the field of PVC processing technology, specifically to a PVC vertical rotary blown film machine. Background Technology

[0002] PVC is a type of polyvinyl chloride material. To improve environmental protection, PVC is usually recycled and reused. In the production and processing of PVC film, a vertical rotary blown film machine is used to achieve efficient and continuous production of PVC film. Through the combination of the vertical main machine structure and the rotary die head, the recycled plastic particles are heated, melted, extruded, blown, and cooled to form a PVC film with uniform thickness, thus realizing the recycling and reuse of plastic.

[0003] In the prior art, Chinese Patent No. CN219028473U discloses a single-layer vertical top-rotation blown film machine, belonging to the field of blown film machine technology. It includes a frame, a blown film head disposed at the lower part of the frame, and a rotary traction head disposed at the upper part of the frame. The rotary traction head is connected to a drive motor at the upper part of the frame by means of an inverted suspension. A platform is disposed in the middle of the frame. A rotating plate is fixedly disposed at the lower end of the rotary traction head, and the rotating plate is located on a rotary support member disposed on the platform. The drive part of the rotary traction head is mounted on the upper end, which facilitates installation and subsequent maintenance and repair during use.

[0004] For example, in the prior art, Chinese patent CN212707990U discloses a traction inverted vertical rotating structure for a blown film machine, which solves the shortcomings of the prior art. It includes a platform, on the top of which a rotary gear disk is rotatably installed. The top of the platform is also fixed with an air flotation roller, a column, and two positioning guide rollers by bolts. The top of the column is connected to a transverse guide roller by screws, and the other end of the transverse guide roller is fixed to the top of the positioning guide roller by screws. The top of the rotary gear disk is fixed with a flat plate by bolts. The inverted vertical rotating structure replaces the traditional machine head rotation method, which solves the problem of material leakage from the machine head. The machine body can be placed on the ground for easy operation. The rotational torque is small, and there is no need to install secondary traction, thus saving production costs.

[0005] While existing technologies are easy to install and cost-effective, they cannot clean the dust adhering to the film before it is wound up, resulting in dust and impurities on the surface of the wound film, which affects the overall quality of the film.

[0006] Therefore, we propose a PVC vertical rotary blown film machine to solve the problems mentioned above. Summary of the Invention

[0007] The purpose of this invention is to provide a PVC vertical rotary blown film machine to solve the problem mentioned in the background art that the dust attached to the film cannot be cleaned before the film is wound up, resulting in dust and impurities on the surface of the wound film, which affects the overall quality of the film.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a PVC vertical rotary blown film machine, comprising a mounting frame, a rotary main unit disposed below the mounting frame, and a feeding box for feeding recycled plastic granules is disposed on the side of the rotary main unit. A human-shaped frame for auxiliary positioning with a film is disposed above the mounting frame. A fixing plate is fixedly connected to the mounting frame, and an air blowing mechanism is disposed on the fixing plate. The air blowing mechanism performs preliminary dust removal treatment on the blown film through the guiding effect of the air guide box it contains. A cleaning box is fixedly connected to the fixing plate, and a cleaning cotton for secondary dust removal of the film is slidably connected to the inner side of the cleaning box. An adjustment mechanism is disposed between the inner side of the cleaning cotton and the cleaning box. The adjustment mechanism adjusts the position of the cleaning cotton under the action of the air force output by the air blowing mechanism.

[0009] Preferably, a guide assembly is provided above the mounting frame, and a winding assembly for winding the processed film is provided on the side of the mounting frame.

[0010] Preferably, the air blowing mechanism includes an air pump, which is fixedly connected to the upper surface of the fixed plate, and an auxiliary box is also provided on the fixed plate, and the output end of the air pump is connected to the auxiliary box.

[0011] Preferably, the air guide box is fixedly connected to the side of the fixed plate, and an air nozzle is provided through the outer surface of the air guide box, with the air nozzle facing the side of the human-shaped frame. A connecting pipe is provided between the air guide box and the auxiliary box, and the connecting pipe is located in the middle of the auxiliary box.

[0012] Preferably, the adjustment mechanism includes a positioning plate, which is fixedly connected to the inside of the auxiliary box. A slide rod is slidably connected to the positioning plate. A movable plate is fixedly connected to the inner side of the slide rod, and the side of the movable plate is in contact with the inner wall of the auxiliary box. A spring is fixedly connected between the outer side of the movable plate and the positioning plate.

[0013] Preferably, two sets of positioning plates are symmetrically arranged about the center point of the auxiliary box. The two sets of movable plates are located on the left and right sides of the air pump output end, respectively. The movable plates drive the slide rod to slide under the action of the air pump output wind force.

[0014] Preferably, the upper surface of the auxiliary box is provided with a first sliding groove, and the first sliding groove is located on the outer side of the positioning plate. The first sliding groove is slidably connected to a linkage plate, and the linkage plate is slidably located inside the first sliding groove and fixedly connected to the sliding rod.

[0015] Preferably, the cleaning cotton is internally fixedly connected to a connecting plate, and an auxiliary block is fixedly connected to the outside of the connecting plate. The auxiliary blocks are arranged in groups of three, and the height of the auxiliary blocks in the same group increases sequentially along the moving direction of the corresponding slide bar.

[0016] Preferably, a second sliding groove is fixedly provided on the upper surface of the cleaning box, the other end of the linkage plate is slidably connected to the second sliding groove, and an abutment plate is fixedly connected to the lower end of the linkage plate. The abutment plate is slidably connected inside the cleaning box, and an abutment block is fixedly connected to the end side of the abutment plate. Both the abutment block and the auxiliary block have arc-shaped side structures, and the abutment block and the auxiliary block abut against each other to drive the cleaning cotton to slide.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. Recycled plastic granules are placed inside the feeding box, which is connected to the rotating host. The rotating host heats and melts the plastic granules, transforming them into a molten state. The molten granules are then extruded through the die to form a preliminary film shape. This process realizes the recycling of plastic resources, which is in line with the concept of environmentally friendly production. After extrusion, the film extends upward and is initially limited by the human-shaped frame to ensure the stability of the film during its ascent and prevent deformation or breakage caused by uneven tension. The guide component above the mounting frame further guides and tensions the film to ensure its stability during transmission. The winding component on the side is responsible for orderly winding of the processed film for subsequent storage and use. Through the coordinated work of various components, efficient and continuous production of PVC film from raw materials to finished products is achieved, while ensuring the quality and cleanliness of the film, meeting the market demand for high-quality PVC film.

[0019] 2. After the film is blown out, the blowing mechanism on the fixed plate is activated, the air pump works to generate compressed air, which is transported to the air guide box through the connecting pipe, and then sprayed out in a direction by the air nozzle to perform preliminary dust removal treatment on the film surface, effectively removing the tiny particles and impurities adsorbed by the film during the production process, and improving the cleanliness and quality of the film.

[0020] 3. The air blowing mechanism generates air not only for dust removal but also as a power source for the adjustment mechanism. The air force acts on the moving plate inside the auxiliary box, causing the moving plate to overcome the spring force and push the slide rod along the positioning plate. During the movement of the slide rod, the linkage plate is simultaneously driven to slide, which in turn causes the abutment plate set on the side of the linkage plate to move. At this time, the abutment plate will cause the abutment block to abut against the auxiliary block. After the auxiliary block is abutted, the connecting plate can be driven to move. The two sets of cleaning cotton move towards each other at this time, clamping and wiping the film. While wiping away the dust on the film, it can also help smooth the film to prevent it from folding during subsequent winding.

[0021] 4. As the height of the auxiliary block increases along the direction of the slide bar, the position of the contact plate will vary depending on the wind force generated by the blowing mechanism. The contact block will also contact the auxiliary block at different heights, thereby adjusting the position of the cleaning cotton. This allows the cleaning cotton to gradually penetrate the film surface during the contact process, achieving secondary cleaning. The cleaning force increases with the movement of the slide bar, ensuring that the film surface is thoroughly cleaned. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a three-dimensional structural diagram of the feeding box of the present invention;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the human-shaped frame of the present invention;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the fixing plate of the present invention;

[0026] Figure 5 This is a three-dimensional cross-sectional view of the auxiliary box of the present invention;

[0027] Figure 6 This is a three-dimensional structural diagram of the air guide box of the present invention;

[0028] Figure 7 This is a schematic diagram of the three-dimensional structure of the cleaning cotton of the present invention;

[0029] Figure 8 This is a schematic diagram of the three-dimensional structure of the contact plate of the present invention;

[0030] Figure 9 For the present invention Figure 8 Enlarged structural diagram at point A in the middle;

[0031] Figure 10 This is a schematic diagram of the three-dimensional structure of the auxiliary block of the present invention.

[0032] In the diagram: 1. Mounting frame; 2. Rotating main unit; 3. Rewinding assembly; 4. Guide assembly; 5. Feed box; 6. Man-shaped frame; 7. Fixing plate; 8. Air guide box; 9. Air nozzle; 10. Air pump; 11. Connecting pipe; 12. Auxiliary box; 13. Cleaning box; 14. Cleaning cotton; 15. First slide rail; 16. Second slide rail; 17. Positioning plate; 18. Moving plate; 19. Spring; 20. Slide rod; 21. Abutment block; 22. Auxiliary block; 23. Abutment plate; 24. Connecting plate; 25. Linkage plate. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1: Driven by both environmental protection and efficient production, strictly screened and cleaned recycled plastic granules are precisely fed into the feeding box 5. The feeding box 5 is seamlessly connected to the core equipment, the rotating host 2. The rotating host 2 is equipped with an advanced heating system and a precision melting device. When the recycled plastic granules enter the host, they are rapidly transformed into a uniform and fine molten state under suitable temperature and pressure conditions. This operation not only realizes the recycling of plastic resources and effectively reduces the pollution of waste to the environment, but also aligns with the current green and sustainable environmental protection production concept. Please refer to [link / reference]. Figures 1-2 The present invention provides the following technical solution: a PVC vertical rotary blown film machine, wherein a rotary main unit 2 is provided below the mounting frame 1, and a feeding box 5 for feeding recycled plastic granules is provided on the side of the rotary main unit 2, and a human-shaped frame 6 for auxiliary positioning of film is provided above the mounting frame 1, a guide component 4 is provided above the mounting frame 1, and a winding component 3 for winding the processed film is provided on the side of the mounting frame 1.

[0035] Molten plastic is uniformly extruded through a die head under the driving force of the rotating host 2, forming a preliminary film. After extrusion, the film extends upward and is initially limited by a specially designed humanoid frame 6 to ensure stability during its ascent. This effectively prevents film deformation or breakage caused by uneven tension, greatly improving the reliability and yield of the production process. Above the mounting frame 1, a guide component 4 is installed to further guide and moderately tension the film. During film transport, the guide component 4 can adjust the film's direction of travel and tension in real time to ensure a smooth and stable transport, avoiding problems such as wrinkles or damage caused by poor transport. On the side of the production line, the winding component 3 orderly winds up the processed film, ensuring that the film is tightly and neatly arranged during winding, facilitating subsequent storage and use. The close cooperation and collaborative work between the various components realize efficient and continuous production from recycled plastic granules to high-quality PVC film products.

[0036] Example 2: To further improve the quality of the processed PVC film, an air blowing mechanism is installed. This mechanism effectively removes tiny particles and impurities adsorbed by the film during production, improving the film's cleanliness and quality. Please refer to [link to relevant documentation]. Figure 3 , Figure 4 and Figure 6 Based on Embodiment 1, the following specific structure is also disclosed: A fixing plate 7 is fixedly connected to the mounting frame 1, and an air blowing mechanism is provided on the fixing plate 7. The air blowing mechanism performs preliminary dust removal on the blown film through the guiding effect of the air guide box 8 included therein. The air blowing mechanism includes an air pump 10, which is fixedly connected to the upper surface of the fixing plate 7. An auxiliary box 12 is also provided on the fixing plate 7, and the output end of the air pump 10 is connected to the auxiliary box 12. The air guide box 8 is fixedly connected to the side of the fixing plate 7, and a jet nozzle 9 is provided through the outer surface of the air guide box 8. The jet nozzle 9 is positioned towards the side of the human-shaped frame 6. A connecting pipe 11 is provided between the air guide box 8 and the auxiliary box 12, and the connecting pipe 11 is located in the middle of the auxiliary box 12.

[0037] Once the film is successfully blown out of the die head, the air blowing mechanism configured on the fixed plate 7 is activated. At this time, the air pump 10 starts to operate, compressing the outside air through its internal power system to generate stable compressed air with a certain pressure. The compressed air is then delivered to the auxiliary box 12. The auxiliary box 12 distributes the compressed air to the air guide box 8 through the connecting pipe 11. Subsequently, the compressed air is precisely and directionally ejected from the evenly distributed air nozzles 9 on the air guide box 8. The airflow directly acts on the film surface, performing a comprehensive preliminary cleaning treatment on the film surface. This efficiently and effectively removes the tiny particles and impurities adsorbed by the film during the production process, significantly improving the cleanliness and overall quality of the film, and providing a solid guarantee for subsequent processing and use.

[0038] Example 3: To further ensure thorough cleaning of the film surface and meet the high quality requirements of subsequent production processes, please refer to... Figures 5-10 Based on Embodiment 1, the following specific structure is also disclosed: A cleaning box 13 is fixedly connected to the fixed plate 7, and a cleaning cotton 14 for secondary dust removal of the film is slidably connected to the inner side of the cleaning box 13. An adjustment mechanism is provided between the inner side of the cleaning cotton 14 and the cleaning box 13. The adjustment mechanism adjusts the position of the cleaning cotton 14 under the action of the air force output by the blowing mechanism. The adjustment mechanism includes a positioning plate 17, which is fixedly connected to the inside of the auxiliary box 12. A slide rod 20 is slidably connected to the positioning plate 17. A moving plate 18 is fixedly connected to the inner side of the slide rod 20, and the side of the moving plate 18 is in contact with the inner wall of the auxiliary box 12. A spring 19 is fixedly connected between the outer side of the moving plate 18 and the positioning plate 17. Two sets of positioning plates 17 are symmetrically arranged about the center point of the auxiliary box 12. The two sets of moving plates 18 are located on the left and right sides of the output end of the air pump 10, respectively. The moving plates 18 drive the slide rod 20 under the action of the air force output by the air pump 10. The auxiliary box 12 has a first sliding groove 15 on its upper surface, which is located on the outer side of the positioning plate 17. A linkage plate 25 is slidably connected to the first sliding groove 15, and the linkage plate 25 is slidably disposed inside the first sliding groove 15 and fixedly connected to the slide rod 20. A connecting plate 24 is fixedly connected inside the cleaning cotton 14, and an auxiliary block 22 is fixedly connected to the outer side of the connecting plate 24. The auxiliary blocks 22 are arranged in groups of three, and the height of each auxiliary block 22 in the same group follows the corresponding sliding groove. The moving direction of the rod 20 increases sequentially. A second sliding groove 16 is fixedly opened on the upper surface of the cleaning box 13. The other end of the linkage plate 25 is slidably connected to the second sliding groove 16. A contact plate 23 is fixedly connected to the lower end of the linkage plate 25. The contact plate 23 is slidably connected inside the cleaning box 13. A contact block 21 is fixedly connected to the end side of the contact plate 23. Both the contact block 21 and the auxiliary block 22 have arc-shaped structures on their sides. The contact block 21 and the auxiliary block 22 abut against each other, causing the cleaning cotton 14 to slide.

[0039] The airflow generated by the blowing mechanism can serve as the power source for the adjustment mechanism. When the airflow precisely acts on the movable plate 18 inside the auxiliary box 12, the movable plate 18, under the continuous push of the airflow, pushes the slide rod 20 to slide smoothly along the trajectory set by the positioning plate 17. During the movement of the slide rod 20, the linkage plate 25 is simultaneously driven to slide, and the linkage plate 25 drives the abutment plate 23 to move accordingly. At this time, the moving abutment plate 23 can drive the abutment block 21 set on its side to move, so that the abutment block 21 and the auxiliary block 22 make close contact. After being subjected to the abutment force, the auxiliary block 22 produces a corresponding displacement, which in turn causes the connecting plate 24 to move accordingly. At this time, the two sets of cleaning cotton 14 move towards each other under the drive of the connecting plate 24, tightly clamping and wiping the film. Through the cleaning cotton 14 The wiping action not only effectively removes residual dust from the film but also helps to smooth the film, effectively preventing folding during subsequent winding and ensuring the flatness and quality of the winding. Simultaneously, the height of the auxiliary block 22 increases along the direction of movement of the slide bar 20. When the wind force generated by the blowing mechanism changes, the position of the contact plate 23 also changes accordingly. The contact block 21 will contact the auxiliary blocks 22 at different heights, thereby achieving precise adjustment of the movement position of the cleaning cotton 14. During the contact process, the cleaning cotton 14 can gradually penetrate into the film surface to achieve secondary dust removal. Moreover, the dust removal force gradually increases as the slide bar 20 moves, ensuring that the film surface is thoroughly cleaned and providing high-quality raw material for subsequent production and processing.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A PVC vertical rotary blown film machine, comprising a mounting frame (1), a rotary main unit (2) disposed below the mounting frame (1), and a feeding box (5) for feeding recycled plastic granules is disposed on the side of the rotary main unit (2), and a human-shaped frame (6) for auxiliary positioning of the film is disposed above the mounting frame (1), characterized in that: The mounting bracket (1) is also fixedly connected to a fixing plate (7), and the fixing plate (7) is provided with an air blowing mechanism. The air blowing mechanism performs preliminary dust removal on the blown film through the air guiding box (8) it contains. The fixing plate (7) is fixedly connected to a cleaning box (13), and the inner side of the cleaning box (13) is slidably connected to a cleaning cotton (14) for secondary dust removal on the film. An adjustment mechanism is provided between the inner side of the cleaning cotton (14) and the cleaning box (13). The adjustment mechanism adjusts the position of the cleaning cotton (14) under the action of the air blowing mechanism. The blowing mechanism includes an air pump (10), which is fixedly connected to the upper surface of a fixed plate (7). An auxiliary box (12) is also provided on the fixed plate (7), and the output end of the air pump (10) is connected to the auxiliary box (12). The air guide box (8) is fixedly connected to the side of the fixed plate (7), and a jet nozzle (9) is provided through the outer surface of the air guide box (8). A connecting pipe (11) is provided between the air guide box (8) and the auxiliary box (12), and the connecting pipe (11) is located in the middle of the auxiliary box (12). The adjustment mechanism includes a positioning plate (17). (17) is fixedly connected inside the auxiliary box (12), and a sliding rod (20) is slidably connected on the positioning plate (17). A movable plate (18) is fixedly connected to the inner side of the sliding rod (20), and the side of the movable plate (18) is in contact with the inner wall of the auxiliary box (12). A spring (19) is fixedly connected between the outer side of the movable plate (18) and the positioning plate (17). Two sets of the positioning plate (17) are symmetrically arranged about the center point of the auxiliary box (12). The two sets of movable plates (18) are located on the left and right sides of the output end of the air pump (10). The movable plates (18) are in contact with the air pump (10) when the air pump (10) outputs wind force. The sliding rod (20) slides downwards. The upper surface of the auxiliary box (12) is provided with a first sliding groove (15), and the first sliding groove (15) is located on the outside of the positioning plate (17). The first sliding groove (15) is slidably connected to a linkage plate (25), and the linkage plate (25) is slidably located on one side inside the first sliding groove (15) and fixedly connected to the sliding rod (20). The cleaning cotton (14) is fixedly connected to a connecting plate (24), and an auxiliary block (22) is fixedly connected to the outside of the connecting plate (24). The auxiliary blocks (22) are in groups of three, and the height of the auxiliary blocks (22) in the same group is along the corresponding sliding rod (20). 0) The moving direction increases sequentially. The upper surface of the cleaning box (13) is fixedly provided with a second sliding groove (16). The other end of the linkage plate (25) is slidably connected to the second sliding groove (16). The lower end of the linkage plate (25) is fixedly connected to an abutment plate (23). The abutment plate (23) is slidably connected inside the cleaning box (13). The end side of the abutment plate (23) is fixedly connected to an abutment block (21). The sides of the abutment block (21) and the auxiliary block (22) are both arc-shaped. The abutment block (21) and the auxiliary block (22) abut against each other, causing the cleaning cotton (14) to slide and tightly clamp and wipe the film.

2. The PVC vertical rotary blown film machine according to claim 1, characterized in that: A guide assembly (4) is provided above the mounting frame (1), and a winding assembly (3) for winding the processed film is provided on the side of the mounting frame (1).

3. A PVC vertical rotary blown film machine according to claim 1, characterized in that: The jet nozzle (9) is positioned facing the humanoid frame (6).

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