A stretching and shaping device for absorbable polymer materials

Abstract

This utility model discloses a stretching and shaping device for absorbable polymer materials, relating to the technical field of stretching and shaping equipment. It includes a support box, a movable frame, an air-cooling component, and an angle adjustment component. The support box is installed on the side of an extruder. The movable frame is mounted on the support box via a reciprocating translation component, and an extrusion component is installed on the movable frame to stretch the extruded material in conjunction with the translation of the movable frame. Two air-cooling components are provided, one on the movable frame and the other on the extrusion component, for continuous air cooling of the extruded material. The angle adjustment component is located on the air-cooling components. This utility model, through the above technical solution, solves the problem in the prior art where the cooling fan is fixed and it is difficult to continuously cool the extruded material.

Description

Technical Field

[0001] This utility model relates to the field of stretching and shaping equipment, and in particular to a stretching and shaping equipment for absorbable polymer materials. Background Technology

[0002] Absorbable polymers are a class of polymers that can be gradually degraded in the body or in the natural environment through chemical or biological processes, and are eventually absorbed by the body or transformed into harmless substances. They combine the mechanical properties of polymers with biocompatibility and have important applications in the fields of medicine, packaging and agriculture.

[0003] When processing polymer materials, they are usually placed in an extruder. Through melting and extrusion inside the extruder, the polymer materials are formed into specific shapes and items through a mold. During extrusion, the material is in a molten state at high temperature, so it is relatively soft. In order to improve strength and rigidity, the extruded material usually needs to be stretched and cooled to solidify it.

[0004] During stretching, one end of the extruded material is stretched at the outlet of the extruder by a mechanical mechanism, and a fan is installed above the material to cool it. The fan is usually fixed or tilted. After stretching, the material is cooled and shaped by the fan. However, if the material temperature is too high or the heat accumulates too quickly during stretching, it may become over-softened, requiring continuous air cooling. Fixed fans are difficult to continuously cool the stretched material, and while tilted fans increase the area of ​​airflow, the angle of the airflow is fixed, making it difficult to provide comprehensive and continuous cooling. Utility Model Content

[0005] The purpose of this invention is to provide an absorbable polymer material stretching and shaping device, which solves the problem in the prior art where the cooling fan is fixed or tilted, making it difficult to continuously cool the extruded material.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An absorbable polymer material stretching and shaping device is installed on the side of an extruder. It includes a support box, a movable frame, an air-cooling component, and an angle adjustment component. The support box is installed on the side of the extruder. The movable frame is mounted on the support box via a reciprocating translation component, and an extrusion component is installed on the movable frame to stretch the extruded material in conjunction with the translation of the movable frame. Two air-cooling components are provided, one on the movable frame and the other on the extrusion component, for continuous air cooling of the extruded material. The angle adjustment component is located on the air-cooling component.

[0008] Furthermore, the reciprocating translation component includes a support cover, a reciprocating lead screw, a first motor, and a sliding component. The support cover is fixedly installed on the side of the support box. The reciprocating lead screw is rotatably installed inside the support cover and a matching crescent-shaped slider is installed on the reciprocating lead screw. The first motor is installed on the support cover and its output end is coaxially connected to the reciprocating lead screw. The sliding component is located at the other end of the support box.

[0009] Furthermore, the sliding assembly includes a second support cover, a sliding rod, and a sliding block. The second support cover is fixedly installed at the other end of the support box, the sliding rod is fixedly installed inside the second support cover, the sliding block is slidably installed on the sliding rod, and the moving frame is fixedly installed between the sliding block and the crescent-shaped slider.

[0010] Furthermore, the extrusion assembly includes a support plate, an electric push rod, an extrusion plate, and a connecting plate. Two support plates are detachably installed at the top of the movable frame. The electric push rod is installed on the support plate. The extrusion plate is detachably installed on the output end of the electric push rod. The connecting plate is fixedly installed between the two support plates.

[0011] Furthermore, the air-cooled assembly includes a blower, a blower pipe, and a telescopic pipe. The blower is installed at the bottom of both the connecting plate and the movable frame. One end of the blower pipe is rotatably installed at the air outlet of the blower. The telescopic pipe is slidably installed inside the blower pipe, and both the blower pipe and the telescopic pipe have air outlets.

[0012] Furthermore, the angle adjustment assembly includes a sprocket, a chain, and a drive assembly. The sprocket is fixedly installed on the two air pipes, and the chain is tensioned between the two sprockets. The drive assembly is disposed on the connecting plate.

[0013] Furthermore, the drive assembly includes a second motor, a drive gear ring, a drive shaft, and a drive gear. The second motor is mounted on the bottom end of the connecting plate, the drive gear ring is fixedly mounted on one of the blower pipes, the drive shaft is coaxially connected to the output end of the second motor, the drive gear is coaxially connected to the drive shaft, and the drive gear meshes with the drive gear ring.

[0014] In order to enable the extrusion assembly to be moved and mounted on the side of the other end of the support box, a top frame is mounted on the top of one side of the support box, and the other ends of the two telescopic tubes are mounted on the side of the top frame via flanges.

[0015] In order to enable simultaneous air blowing to the upper and lower ends of the extruded material, the air outlets of the two telescopic tubes are placed opposite each other, and the air outlets of the two air blowing tubes are placed opposite each other synchronously.

[0016] In order to enable simultaneous blowing of the upper and lower ends of the extruded material, the top surface of the moving frame is located between the telescopic tube and the blowing tube.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In this invention, after the material is extruded, the extruded material can be squeezed and pulled by the cooperation of the extrusion component and the reciprocating translation component, thereby stretching it. At the same time as stretching, the air-cooling component can move synchronously with the moving frame, so that the upper and lower ends of the extruded material can be air-cooled at the same time as stretching, thereby shaping it. This achieves stretching and air-cooling shaping at the same time.

[0019] Compared to a fixed or tilted fan, the combination of the support box, the movable frame, the air-cooling component, and the angle adjustment component allows for simultaneous air cooling of the extruded polymer material from both the top and bottom. This ensures that the material can be cooled regardless of where it is pulled above the support box, and the air outlet can be rotated to a horizontal position if the material that was pulled out first does not require long-term continuous cooling. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0022] Figure 1 This is a schematic diagram of the overall structure of a stretching and shaping device for absorbable polymer materials.

[0023] Figure 2This is a schematic diagram showing the disassembled and assembled structure of a moving frame and a reciprocating horizontal moving component of an absorbable polymer material stretching and shaping equipment.

[0024] Figure 3 This is a schematic diagram of the structure of a stretching and shaping device for absorbable polymer materials, consisting of support cover one, support cover two, a reciprocating screw, and a sliding rod.

[0025] Figure 4 This is a schematic diagram of the extrusion assembly of a stretching and shaping equipment for absorbable polymer materials.

[0026] Figure 5 This is a schematic diagram of the structure of an absorbable polymer material stretching and shaping device, showing the air-cooled components and the top frame working together.

[0027] Figure 6 This is a schematic diagram of the structure of an absorbable polymer material stretching and shaping device, including an angle adjustment component, a blower, and a telescopic tube.

[0028] Illustration: 1. Support box; 2. Movable frame; 3. Support cover one; 4. Reciprocating lead screw; 5. Crescent slider; 6. First motor; 7. Support cover two; 8. Sliding rod; 9. Sliding block; 10. Support plate; 11. Electric push rod; 12. Extrusion plate; 13. Connecting plate; 14. Blower; 15. Air blowing pipe; 16. Telescopic pipe; 17. Sprocket; 18. Chain; 19. Second motor; 20. Drive gear ring; 21. Top frame; 22. Drive gear; 24. Drive shaft. Detailed Implementation

[0029] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below 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 skilled in the art without creative effort are within the scope of protection of the present utility model.

[0030] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0031] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] Example 1, as Figures 1-6 As shown, this utility model embodiment provides an absorbable polymer material stretching and shaping device, installed on the side of an extruder, including a support box 1, a movable frame 2, an air-cooling component, and an angle adjustment component. The support box 1 is installed on the side of the extruder. The movable frame 2 is mounted on the support box 1 via a reciprocating translation component, and an extrusion component is installed on the movable frame 2 to stretch the extruded material in conjunction with the translation of the movable frame 2. Two air-cooling components are provided, one on the movable frame 2 and the other on the extrusion component, for continuous air cooling of the extruded material. The angle adjustment component is located on the air-cooling component.

[0033] This device is installed next to the extruder. When the extruder extrudes material, it pulls the material to the top surface of the moving frame 2. The extruded material is stretched through the cooperation between the extrusion assembly and the reciprocating translation assembly. The reciprocating translation assembly includes a support cover 3, a reciprocating screw 4, a first motor 6, and a sliding assembly. The support cover 3 is fixedly installed on the side of the support box 1. The reciprocating screw 4 is rotatably installed inside the support cover 3, and a matching crescent-shaped slider 5 is mounted on the reciprocating screw 4. The first motor 6 is mounted on the support cover 3, and its output end is coaxially connected to the reciprocating screw 4. The sliding assembly is located at the other end of the support box 1 and includes a support cover 7, a sliding rod 8, and a sliding... Moving block 9 and support cover 2 7 are fixedly installed at the other end of support box 1. Sliding rod 8 is fixedly installed inside support cover 2 7. Sliding block 9 is slidably installed on sliding rod 8. Moving frame 2 is fixedly installed between sliding block 9 and crescent slider 5. The extrusion assembly includes support plate 10, electric push rod 11, extrusion plate 12 and connecting plate 13. Two support plates 10 are detachably installed at the top of moving frame 2. Electric push rod 11 is installed on support plate 10. Extrusion plate 12 is detachably installed on the output end of electric push rod 11. Connecting plate 13 is fixedly installed between the two support plates 10. It should be added that the reciprocating screw 4 is equipped with a telescopic protective sleeve, which can protect the reciprocating screw 4.

[0034] Specifically, after placing one end of the extruded material on the top surface of the moving frame 2, the electric push rod 11 is activated. The output end of the electric push rod 11 drives the extrusion plate 12 to move downward, thereby extruding one end of the material. Then, the first motor 6 is activated. The output end of the first motor 6 drives the reciprocating screw 4 to rotate inside the support cover 3. It should be noted that the crescent-shaped slider 5 is mounted on the reciprocating screw 4 through a reciprocating sleeve, thereby driving the crescent-shaped slider 5 to move on the reciprocating screw 4. With the connection of the moving frame 2, the slider block 9 at the other end slides synchronously on the sliding rod 8, thereby stretching the material. The translational speed of the moving frame 2 must be greater than the extrusion speed to stretch the material.

[0035] During stretching, the extruded material can be cooled and shaped using an air-cooling assembly. This assembly includes a blower 14, an air pipe 15, and a telescopic pipe 16. The blower 14 is mounted on the bottom of both the connecting plate 13 and the moving frame 2. One end of the air pipe 15 is rotatably mounted at the air outlet of the blower 14. The telescopic pipe 16 is slidably mounted inside the air pipe 15, and both the air pipe 15 and the telescopic pipe 16 have air outlets. Specifically, because a top frame 21 is mounted on the top of one side of the support box 1, and the other ends of the two telescopic pipes 16 are mounted on the side of the top frame 21 via flanges, the moving frame 2 can drive the blower 14 to move synchronously when it moves horizontally. Furthermore, the air pipe 15 can slide relative to the outer wall of the telescopic pipe 16, causing the overall length of the telescopic pipe 16 and the air pipe 15 to increase with the distance the moving frame 2 moves. As the material grows, the blower 14 is started simultaneously to blow air out. The air outlets of the two telescopic pipes 16 are placed opposite each other, and the air outlets of the two air blowing pipes 15 are placed opposite each other simultaneously. The top surface of the moving frame 2 is located between the telescopic pipes 16 and the air blowing pipes 15, so it can blow air to the upper and lower ends of the material simultaneously. After the moving frame 2 moves to the sidemost end, the stretching stops and the material is taken out. It should be added that one end of the air blowing pipe 15 can be rotatably installed at the air outlet of the blower 14 through a rotary joint. The air blowing pipe 15 and the telescopic pipe 16 slide relative to each other. Because one end of the telescopic pipe 16 is installed on the side of the top frame 21, the air blowing pipe 15 can slide on the outer wall of the telescopic pipe 16 when moving, and the inner wall of the air blowing pipe 15 can rotate around the outer wall of the telescopic pipe 16 when rotating, thereby adjusting the air outlet.

[0036] When blowing air onto the material, the air outlet direction of the air pipe 15 can be changed by rotating the angle adjustment component, thereby tilting the airflow to other parts of the material. The angle adjustment component includes a sprocket 17, a chain 18, and a drive component. Sprockets 17 are fixedly mounted on two air pipes 15, and a chain 18 is tensioned between the two sprockets 17. The drive component is mounted on the connecting plate 13 and includes a second motor 19, a drive gear ring 20, a drive shaft 24, and a drive gear 22. The second motor 19 is mounted at the bottom of the connecting plate 13. The drive gear ring 20 is fixedly mounted on one of the air pipes 15. The drive shaft 24 is coaxially connected to the output end of the second motor 19, and the drive gear 22 is coaxially connected to the drive shaft 24. Engaging with the drive gear ring 20, specifically, the second motor 19 is started, and the output end of the second motor 19 drives the drive shaft 24 to rotate. The drive shaft 24 drives the drive gear 22 to rotate, and the drive gear 22 drives the drive gear ring 20, which meshes with it, to rotate. The drive gear ring 20 then drives one of the air pipes 15 to rotate at the air outlet of the blower 14, and simultaneously drives one of the sprockets 17 to rotate. Under the connection of the chain 18, it drives the other sprocket 17 and the air pipe 15 to rotate, thereby changing the angle of the air outlet of the air pipe 15 and blowing the material obliquely to the side. If the material pulled out first passes between the two air pipes 15, and if it does not need to be continuously blown, the air outlet of the air pipe 15 can be rotated to a horizontal position, so that the material pulled to the front end does not need to be blown.

[0037] Working principle: When stretching and shaping the extruded material, one end of the extruded material is placed on the top surface of the moving frame 2. Then, the electric push rod 11 is activated. The output end of the electric push rod 11 drives the extrusion plate 12 downwards, thus extruding one end of the material. Next, the first motor 6 is activated. The output end of the first motor 6 drives the reciprocating screw 4 to rotate within the support cover 3. Connected to the moving frame 2, the screw 9 at the other end slides synchronously on the sliding rod 8, thereby stretching the material. The translational speed of the moving frame 2 must be greater than the extrusion speed to achieve the desired stretching. Simultaneously, the blower 14 is activated. While the moving frame 2 is translating, the air pipe 15 slides relative to the telescopic pipe 16. The air blown by the blower 14 is directed through the air pipe 15 and the telescopic pipe 16 to the top and bottom of the material, thereby cooling and shaping it. Finally, the second electric push rod 11 is activated. The output of the second motor 19 drives the drive shaft 24 to rotate, which in turn drives the drive gear 22 to rotate. The drive gear 22 then drives the drive ring 20, which meshes with it, to rotate. The drive ring 20 then drives one of the blower pipes 15 to rotate at the outlet of the blower 14, simultaneously driving one of the sprockets 17 to rotate. With the connection of the chain 18, the other sprocket 17 and the blower pipe 15 rotate, thereby changing the angle of the outlet of the blower pipe 15 and blowing the material at an angle. If the material pulled out first passes between the two blower pipes 15 and does not need to be blown continuously, the outlet of the blower pipe 15 can be rotated to a horizontal position, thus eliminating the need to blow the material pulled to the front end. It should be noted that a protective cover can be detachably installed on the connecting plate 13 to place the drive gear 22 and the drive ring 20 inside, thereby protecting their meshing.

[0038] It should be added that, since the injection molding machine and the device are both installed in the factory, and the factory is equipped with a power supply and electrical control system, the blower 14, the first motor 6, and the electric push rods 11 of the device can all be powered by the power supply equipment in the factory to ensure normal operation. Furthermore, the two electric push rods 11 can be synchronously controlled by a controller, for example, by the same controller, such as a PL or PC-based controller. The electric push rods 11 and the controller are electrically connected via wires. One electric push rod 11 is designated as the master cylinder, and the other electric push rods 11 are designated as slave cylinders. The slave cylinders can move synchronously with the output of the master cylinder. The controller is also electrically connected to an encoder via wires. The master cylinder sets a trajectory, and the slave cylinders compensate for deviations through encoder feedback, thereby enabling the outputs of the two electric push rods 11 to move synchronously. This is all existing technology and will not be elaborated further.

[0039] It should also be noted that the extrusion plate 12 is detachably mounted on the output end of the electric push rod 11, so the extrusion plate 12 can be replaced to match the shape and style of the extruded material, thereby achieving a better extrusion effect.

[0040] Furthermore, the telescopic tube 16 and the blowing tube 15 are provided with several air outlets. The number of air outlets can be large. When the material is stretched, there are air outlets at both the top and bottom of the material. Therefore, air can be blown on the top and bottom of the material, and the stretching speed is faster than the extrusion speed.

[0041] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A stretching and shaping device for absorbable polymer materials, installed on the side of an extruder, characterized in that: Also includes: Support box (1), the support box (1) is installed on the side of the extruder; The movable frame (2) is mounted on the support box (1) by means of a reciprocating translation component, and an extrusion component is installed on the movable frame (2) to stretch the extruded material in coordination with the translation of the movable frame (2); Two air-cooling components are provided, one on the movable frame (2) and the other on the extrusion component, for continuous air cooling of the extruded material; An angle adjustment component is disposed on the air-cooling component.

2. The absorbable polymer material stretching and shaping equipment as described in claim 1, characterized in that: The reciprocating translation component includes: Support cover one (3), the support cover one (3) is fixedly installed on the side of the support box (1); A reciprocating lead screw (4) is rotatably mounted inside the support cover (3), and a matching crescent-shaped slider (5) is mounted on the reciprocating lead screw (4). The first motor (6) is mounted on the support cover (3), and the output end of the first motor (6) is coaxially connected to the reciprocating screw (4); A sliding component is disposed at the other end of the support box (1).

3. The absorbable polymer material stretching and shaping equipment as described in claim 2, characterized in that: The sliding component includes: Support cover two (7), which is fixedly installed at the other end of the support box (1); A sliding rod (8) is fixedly installed inside the second support cover (7); The sliding block (9) is slidably mounted on the sliding rod (8), and the moving frame (2) is fixedly mounted between the sliding block (9) and the crescent slider (5).

4. The absorbable polymer material stretching and shaping equipment as described in claim 3, characterized in that: The extrusion assembly includes: Support plate (10), two of the support plates (10) are detachably installed on the top of the movable frame (2). Electric push rod (11), the electric push rod (11) is mounted on the support plate (10); An extrusion plate (12) is detachably mounted on the output end of the electric push rod (11); A connecting plate (13) is fixedly installed between the two support plates (10).

5. The absorbable polymer material stretching and shaping equipment as described in claim 4, characterized in that: The air-cooling component includes: Blower (14), the bottom end of the connecting plate (13) and the moving frame (2) are both equipped with the blower (14). Air blower (15), one end of which is rotatably installed at the air outlet of the blower (14); Telescopic tube (16) is slidably installed inside the blower tube (15), and both the blower tube (15) and the telescopic tube (16) have air outlets.

6. The absorbable polymer material stretching and shaping equipment as described in claim 5, characterized in that: The angle adjustment component includes: Sprockets (17) are fixedly installed on the two blow pipes (15). A chain (18) is tensioned between two sprockets (17). A drive component is disposed on the connecting plate (13).

7. The absorbable polymer material stretching and shaping equipment as described in claim 6, characterized in that: The driving component includes: The second motor (19) is mounted on the bottom end of the connecting plate (13); A drive gear ring (20) is fixedly mounted on one of the blow pipes (15); A drive shaft (24) is coaxially connected to the output end of the second motor (19); A drive gear (22) is coaxially connected to the drive shaft (24) and meshes with the drive gear ring (20).

8. The absorbable polymer material stretching and shaping equipment as described in claim 5, characterized in that: A top frame (21) is installed on the top of one side of the support box (1), and the other ends of the two telescopic tubes (16) are installed on the side of the top frame (21) via flanges.

9. The absorbable polymer material stretching and shaping equipment as described in claim 5, characterized in that: The air outlets of the two telescopic tubes (16) are placed opposite each other, and the air outlets of the two blower tubes (15) are placed opposite each other synchronously.

10. The absorbable polymer material stretching and shaping equipment as described in claim 5, characterized in that: The top surface of the mobile frame (2) is located between the telescopic tube (16) and the air blowing tube (15).

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