Continuous film blowing forming device of plastic extruder

Abstract

The utility model relates to the field of plastic extruders, and discloses a continuous film blowing forming device of a plastic extruder, which comprises a base, the top of the base is fixedly connected with an extrusion device, the top of the base is fixedly connected with a box body, the inner wall of the box body is connected with a sliding block in a sliding manner, the top of the sliding block is fixedly connected with a shell, and the shell is fixedly connected with the plastic extruder. An auxiliary frame is fixedly connected to the rear side of the shell, a fixing block is fixedly connected to the inner wall of the front end of the shell, a first hydraulic rod is fixedly connected to the inner wall of the fixing block, a long-strip-shaped plate is fixedly connected to the pushing end of the first hydraulic rod, and two hollow sliding blocks are slidably connected to the outer wall of the long-strip-shaped plate. According to the utility model, the automatic adjustment of the traction roller is realized, the tension of the traction roller directly affects the flatness and thickness uniformity of the film, and the quality problems of wrinkles and uneven thickness of the film can not be caused by the automatic adjustment, so that the equipment damage caused by improper manual operation can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of plastic extruders, and particularly relates to a continuous blown film forming device for a plastic extruder. Background Technique

[0002] The continuous blown film forming device of a plastic extruder is an important device for producing plastic films. Such a device generally includes main components such as an extruder, a die head, a cooling device, a traction device, and a winding device. The extruder is responsible for heating and melting plastic particles, forming a film through the die head, and then the film is cooled, tractioned, and finally wound into a roll.

[0003] In the prior art, during the use of the continuous blown film forming device of some plastic extruders, since the traction roller plays a crucial role in the continuous blown film forming device of the plastic extruder, it is responsible for tractioning the film just extruded from the die head to ensure the smooth operation and proper tension of the film. Difficulties in automatic adjustment will lead to an increase in the number of shutdowns, and manual adjustment of the traction roller is required, thereby reducing the overall production efficiency. For this reason, a continuous blown film forming device for a plastic extruder is proposed to solve the above problems. Content of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a continuous blown film forming device for a plastic extruder, aiming to improve the problems in the prior art that the traction roller is difficult to automatically adjust, the tension of the traction roller directly affects the flatness and thickness uniformity of the film, and difficulties in automatic adjustment will result in quality problems such as wrinkles and uneven thickness of the film.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A continuous blown film forming device for a plastic extruder includes a base. The top of the base is fixedly connected with an extrusion device. The top of the base is fixedly connected with a box body. The inner wall of the box body is slidably connected with a sliding block. The top of the sliding block is fixedly connected with a shell. The rear side of the shell is fixedly connected with an auxiliary frame. The front inner wall of the shell is fixedly connected with a fixed block. The inner wall of the fixed block is fixedly connected with a first hydraulic rod. The pushing end of the first hydraulic rod is fixedly connected with a long strip plate. The outer wall of the long strip plate is slidably connected with two hollow sliding blocks. The top outer wall of the hollow sliding block is rotatably connected with a first rotating rod. The bottom outer wall of the hollow sliding block is rotatably connected with a second rotating rod. The inner wall of the fixed block is slidably connected with a traction roller. The top of the base is fixedly connected with a winding assembly, and the winding assembly is used for winding the product after blown film.

[0007] As a further description of the above technical solution:

[0008] The coiling assembly includes a hydraulic cylinder, the top of the hydraulic cylinder is fixedly connected with a hollow plate, the inner wall of the hollow plate is slidably connected with two hinge frames, the top of the base is fixedly connected with a hollow shell, the inner wall of the bottom end of the hollow shell is fixedly connected with a second hydraulic rod, the pushing end of the second hydraulic rod is fixedly connected with a plurality of support rods, the inner wall of the support rod is rotatably connected with a support block, the inner wall of the bottom end of the hollow shell is fixedly connected with a motor, the driving end of the motor is fixedly connected with a first rotating column, the inner wall of the hollow shell is rotatably connected with a second rotating column, the outer wall of the second rotating column is rotatably connected with a belt, the inner wall of the hollow shell is rotatably connected with a hollow round rod, and the outer wall of the hollow round rod is fixedly connected with a disc.

[0009] As a further description of the above technical solution:

[0010] The outer wall of the first rotating rod is rotatably connected to the inner wall of the top end of the fixed block, and the outer wall of the second rotating rod is rotatably connected to the inner wall of the bottom end of the fixed block.

[0011] As a further description of the above technical solution:

[0012] The outer wall of the traction roller is rotatably connected to the inner wall of the traction roller, and the inner wall of the bottom end of the box body is fixedly connected with a hydraulic cylinder.

[0013] As a further description of the above technical solution:

[0014] The top end of the hinge frame is fixedly connected to the bottom end of the sliding block, and the outer wall of the traction roller is slidably connected to the inner wall of the shell.

[0015] As a further description of the above technical solution:

[0016] The outer wall of the first rotating column is rotatably connected with a belt, and the outer wall of the support rod is slidably connected to the inner wall of the disc.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the support rod is rotatably connected to the inner wall of the disc, and the bottom end of the shell is in contact with the top of the box body.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the hinge frame is rotatably connected to the pushing end of the hydraulic cylinder, and the pushing end of the second hydraulic rod is slidably connected to the inner wall of the hollow round rod.

[0021] The present utility model has the following beneficial effects:

[0022] 1. In the present utility model, the hydraulic rod 1 pushes the long strip plate, rotates the rotating rod 2 and then drives the traction roller to slide. Therefore, the automatic adjustment of the traction roller is realized. The tension of the traction roller directly affects the flatness and thickness uniformity of the film. The automatic adjustment will not cause quality problems such as wrinkles and uneven thickness of the film. Therefore, it can also reduce equipment damage caused by improper manual operation.

[0023] 2. In the present utility model, the hydraulic rod 2 pushes the support block to open, starts the motor to drive the rotating column 2 to rotate, and rotates the hollow round rod. Therefore, the automatic winding is realized. The automatic winding system can maintain a stable tension, avoid product quality problems caused by improper manual operation. The opening device can help the material to be flat during the winding process, reduce wrinkles and warping, and improve the appearance quality and physical properties of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional schematic diagram of a continuous blown film forming device of a plastic extruder proposed by the present utility model;

[0025] Figure 2 is a structural schematic diagram of the traction roller of a continuous blown film forming device of a plastic extruder proposed by the present utility model;

[0026] Figure 3 is a structural schematic diagram of the hollow plate of a continuous blown film forming device of a plastic extruder proposed by the present utility model;

[0027] Figure 4 is a structural schematic diagram of the fixed block of a continuous blown film forming device of a plastic extruder proposed by the present utility model;

[0028] Figure 5 is a structural schematic diagram of the disc of a continuous blown film forming device of a plastic extruder proposed by the present utility model;

[0029] Figure 6 is a structural schematic diagram of the support rod of a continuous blown film forming device of a plastic extruder proposed by the present utility model.

[0030] LEGEND DESCRIPTION:

[0031] 1. Base; 2. Extrusion device; 3. Box body; 4. Sliding block; 5. Shell; 6. Auxiliary frame; 7. Fixed block; 8. Hydraulic rod 1; 9. Long strip plate; 10. Hollow slider; 11. Rotating rod 1; 12. Rotating rod 2; 13. Traction roller; 14. Hydraulic cylinder; 15. Hollow plate; 16. Hinge frame; 17. Hollow shell; 18. Hydraulic rod 2; 19. Support rod; 20. Support block; 21. Motor; 22. Rotating column 1; 23. Rotating column 2; 24. Belt; 25. Hollow round rod; 26. Disc. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] Refer to Figure 1 、 Figure 2 As shown in the figures, an embodiment provided by the present utility model is a continuous blown film forming device for a plastic extruder, including a base 1. The top of the base 1 is fixedly connected with an extrusion device 2. The base 1 is designed as a high-strength structure, which can withstand a certain load and ensure the safe operation of the equipment. This stable and reliable structural design helps to reduce the risk of equipment movement or overturning caused by external forces or internal vibrations. The top of the base 1 is fixedly connected with a box body 3. The inner wall of the box body 3 is slidably connected with a sliding block 4. The sliding block 4 usually has good surface treatment, such as a hard alloy coating or a self-lubricating material, which helps to reduce the friction with the track, reduce wear, and extend the service life. The top of the sliding block 4 is fixedly connected with a housing 5. The rear side of the housing 5 is fixedly connected with an auxiliary frame 6. The housing 5 can protect the internal mechanical components or electronic components from being damaged by external physical damage, dust, moisture and other harmful factors, and extend the service life of the equipment.

[0034] Refer to Figure 2 The front inner wall of the housing 5 is fixedly connected with a fixed block 7. The inner wall of the fixed block 7 is fixedly connected with a first hydraulic rod 8. The pushing end of the first hydraulic rod 8 is fixedly connected with a long strip plate 9. The first hydraulic rod 8 has good stability and reliability, and can maintain good working performance under complex and changeable working conditions and is not prone to failure. The outer wall of the long strip plate 9 is slidably connected with two hollow sliders 10. The top outer wall of the hollow slider 10 is rotatably connected with a first rotating rod 11. The first rotating rod 11 can directly convert the rotational motion into a linear motion, reduce energy loss, and improve the transmission efficiency. The bottom outer wall of the hollow slider 10 is rotatably connected with a second rotating rod 12. The inner wall of the fixed block 7 is slidably connected with a traction roller 13. The fixed block 7 can ensure the position stability of the mechanical components during use and reduce the displacement caused by vibration or external forces. The top of the base 1 is fixedly connected with a winding assembly, and the winding assembly is used for winding the products after blown film forming.

[0035] Refer to Figure 1 、 Figure 3 、 Figure 5, the coiling assembly includes a hydraulic cylinder 14. The top of the hydraulic cylinder 14 is fixedly connected with a hollow plate 15. The hydraulic cylinder 14 can generate a large output force because the pressure of the hydraulic oil can be amplified to produce huge power, which is suitable for application scenarios that require large thrust or pulling force. Two hinge brackets 16 are slidably connected to the inner wall of the hollow plate 15. The hinge brackets 16 can adapt to different motion and load conditions, providing good dynamic performance and stability. The top of the base 1 is fixedly connected with a hollow shell 17. The bottom inner wall of the hollow shell 17 is fixedly connected with a second hydraulic rod 18. The basic structure of the second hydraulic rod 18 includes a cylinder barrel, a piston, a piston rod and seals, with a simple design, facilitating manufacturing and maintenance. The pushing end of the second hydraulic rod 18 is fixedly connected with a plurality of support rods 19. The inner wall of the support rod 19 is rotatably connected with a support block 20. The support block 20 can be designed into a structure capable of bearing large vertical or horizontal loads, improving the overall load-bearing capacity. The bottom inner wall of the hollow shell 17 is fixedly connected with a motor 21. The structural design of the motor 21 is simple and convenient for maintenance. Since there is no need to replace the carbon brush or slip ring, the maintenance cost is relatively low. The driving end of the motor 21 is fixedly connected with a first rotating column 22. The inner wall of the hollow shell 17 is rotatably connected with a second rotating column 23. The second rotating column 23 can support and guide mechanical components to perform precise rotational motion, which is crucial for mechanical systems that require rotational motion. A belt 24 is rotatably connected to the outer wall of the second rotating column 23. The inner wall of the hollow shell 17 is rotatably connected with a hollow round rod 25. The material of the hollow round rod 25 is distributed in the outer layer far from the central axis. This structure helps to improve the bending and torsional resistance of the rod body, enabling the rod body to more effectively resist external forces. A disc 26 is fixedly connected to the outer wall of the hollow round rod 25.

[0036] Refer to Figure 1 , Figure 2 , Figure 6The outer wall of the rotating rod 11 is rotatably connected to the inner wall of the top end of the fixed block 7, and the outer wall of the rotating rod 2 12 is rotatably connected to the inner wall of the bottom end of the fixed block 7. The fixed block 7 can be made of different materials as needed to adapt to different working environments and requirements. The outer wall of the traction roller 13 is rotatably connected to the inner wall of the traction roller 13. The traction roller 13 can reduce the sliding and jumping of the material during the conveying process, thereby improving the overall conveying efficiency and reducing energy consumption. The inner wall of the bottom end of the box body 3 is fixedly connected with a hydraulic cylinder 14. The top of the hinge 16 is fixedly connected to the bottom end of the sliding block 4. Due to the small friction resistance, the driving force required by the sliding block 4 is small, thereby reducing the energy consumption of the mechanical system. The outer wall of the traction roller 13 is slidably connected to the inner wall of the housing 5. The outer wall of the rotating column 1 22 is rotatably connected with a belt 24. The friction between the belt 24 and the wheel is small, and the elasticity of the belt 24 reduces the impact generated during the operation. Therefore, the noise of the belt 24 transmission is usually smaller than that of the gear transmission. The outer wall of the support rod 19 is slidably connected to the inner wall of the disc 26. The outer wall of the support rod 19 is rotatably connected to the inner wall of the disc 26. The support rod 19 has high strength and can effectively support and bear weight to maintain the stability of the structure. The bottom end of the shell 5 is in contact with the top of the box 3. The outer wall of the hinge 16 is rotatably connected to the push end of the hydraulic cylinder 14. The hydraulic cylinder 14 has good sealing performance and can effectively prevent liquid leakage to ensure long-term stable operation. The push end of the hydraulic rod 18 is slidably connected to the inner wall of the hollow round rod 25.

[0037] Working principle: start hydraulic rod 18, which in turn pushes the long plate 9, and the push of the long plate 9 in turn drives the hollow slider 10 to slide, and the rotating rod 11 is used for limited rotation, and the hollow slider 10 also drives the rotating rod 2 12 to rotate, and the rotation of the rotating rod 2 12 in turn drives the traction roller 13 to slide, thereby realizing automatic adjustment of the traction roller 13. The tension of the traction roller 13 directly affects the flatness and thickness uniformity of the film. Automatic adjustment will not cause quality problems such as wrinkles and uneven thickness of the film, and can also reduce equipment damage caused by improper human operation.

[0038] Start the hydraulic cylinder 14 to push the hinge 16, the bottom of the hinge 16 will slide in the hollow plate 15 and then lift the sliding block 4 to lift and stretch the formed product, start the hydraulic rod 18, the hydraulic rod 18 pulls the support rod 19 to open the support block 20, and then realizes the opening effect, start the motor 21, the motor 21 drives the rotating column 22 to rotate, the rotating column 22 rotates and then drives the belt 24 to rotate, the belt 24 rotates and then drives the hollow round rod 25 to rotate, and automatic winding is realized. The automatic winding system can maintain stable tension and avoid product quality problems caused by improper manual operation. The opening device can help the material stay flat during the winding process, reduce wrinkles and warping, and improve the appearance quality and physical properties of the final product.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are 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 perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A continuous blown film forming device for a plastic extruder, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected with an extrusion device (2). The top of the base (1) is fixedly connected with a box body (3). The inner wall of the box body (3) is slidably connected with a sliding block (4). The top of the sliding block (4) is fixedly connected with a shell (5). The rear side of the shell (5) is fixedly connected with an auxiliary frame (6). The front inner wall of the shell (5) is fixedly connected with a fixed block (7). The inner wall of the fixed block (7) is fixedly connected with a first hydraulic rod (8). The pushing end of the first hydraulic rod (8) is fixedly connected with a long strip plate (9). The outer wall of the long strip plate (9) is slidably connected with two hollow sliding blocks (10). The top outer wall of the hollow sliding block (10) is rotatably connected with a first rotating rod (11). The bottom outer wall of the hollow sliding block (10) is rotatably connected with a second rotating rod (12). The inner wall of the fixed block (7) is slidably connected with a traction roller (13). The top of the base (1) is fixedly connected with a winding assembly for winding the product after blown film is completed.

2. The continuous blown film forming device of a plastic extruder according to claim 1, characterized in that: The winding assembly includes a hydraulic cylinder (14). The top of the hydraulic cylinder (14) is fixedly connected with a hollow plate (15). The inner wall of the hollow plate (15) is slidably connected with two hinge frames (16). The top of the base (1) is fixedly connected with a hollow shell (17). The bottom inner wall of the hollow shell (17) is fixedly connected with a second hydraulic rod (18). The pushing end of the second hydraulic rod (18) is fixedly connected with a plurality of support rods (19). The inner wall of the support rod (19) is rotatably connected with a support block (20). The bottom inner wall of the hollow shell (17) is fixedly connected with a motor (21). The driving end of the motor (21) is fixedly connected with a first rotating column (22). The inner wall of the hollow shell (17) is rotatably connected with a second rotating column (23). The outer wall of the second rotating column (23) is rotatably connected with a belt (24). The inner wall of the hollow shell (17) is rotatably connected with a hollow round rod (25). The outer wall of the hollow round rod (25) is fixedly connected with a disc (26).

3. The continuous blown film forming device of a plastic extruder according to claim 1, characterized in that: The outer wall of the first rotating rod (11) is rotatably connected to the top inner wall of the fixed block (7), and the outer wall of the second rotating rod (12) is rotatably connected to the bottom inner wall of the fixed block (7).

4. The continuous blown film forming device of a plastic extruder according to claim 2, characterized in that: The outer wall of the traction roller (13) is rotatably connected to the inner wall of the traction roller (13), and the bottom inner wall of the box body (3) is fixedly connected with a hydraulic cylinder (14).

5. A continuous blown film forming device for a plastic extruder according to claim 2, characterized in that: The top of the hinge frame (16) is fixedly connected to the bottom of the sliding block (4), and the outer wall of the traction roller (13) is slidably connected to the inner wall of the shell (5).

6. The continuous blown film forming device of a plastic extruder according to claim 2, characterized in that: The outer wall of the first rotating column (22) is rotatably connected with a belt (24), and the outer wall of the support rod (19) is slidably connected to the inner wall of the disc (26).

7. A continuous blown film forming device for a plastic extruder according to claim 2, characterized in that: The outer wall of the support rod (19) is rotatably connected to the inner wall of the disc (26), and the bottom of the shell (5) is in contact with the top of the box body (3).

8. The continuous blown film forming device of a plastic extruder according to claim 2, characterized in that: The outer wall of the hinge frame (16) is rotatably connected to the pushing end of the hydraulic cylinder (14), and the pushing end of the second hydraulic rod (18) is slidably connected to the inner wall of the hollow round rod (25).

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