Extrusion forming device for antibacterial molding powder processing

Abstract

The extrusion forming device comprises a bottom plate, supporting rods are fixedly connected to the four corners of the top of the bottom plate, a top plate is fixedly connected to the tops of the supporting rods, and electric telescopic rods are fixedly connected to the left side and the right side of the top of the bottom plate. And mold boxes are fixedly connected to the tops of the two electric telescopic rods. The stepping motor is started to drive the connecting plate to rotate by a circle, so that the positions of the storage box and the die pressing block are exchanged, the electric telescopic rod on the right side of the bottom plate is started to stretch, the die box on the right side is driven to move upwards to be close to the die pressing block, and molding powder in the die pressing block is extruded and formed through the die pressing block. And after extrusion forming is completed, a molding powder block is subjected to demolding through the ejection mechanism, the demolding efficiency is improved, meanwhile, extrusion forming is conducted on the other side when demolding is conducted on the mold box on one side, extrusion forming demolding and molding powder adding are alternately conducted in a reciprocating mode, the extrusion forming efficiency is improved, and the use effect of a user is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of plastic powder technology, specifically to an extrusion molding device for processing antibacterial plastic powder. Background Technology

[0002] Powder coating is a thermosetting powder coating used for electrostatic spraying, also called bakelite or bakelite powder. Originally a colorless or yellowish-brown transparent substance, it is often marketed with added colorants to appear in red, yellow, black, green, brown, blue, and other colors. It exists in granular or powder form. It is resistant to weak acids and weak alkalis, but decomposes in strong acids and corrodes in strong alkalis. It is insoluble in water but soluble in organic solvents such as acetone and alcohol. The powder coating molding process mainly involves molds, upper and lower die punches. The powder is injected into the mold, then the mold is moved below the upper die punch, which then descends to press the powder.

[0003] A search revealed Chinese patent application number 202221987038.9, which discloses an extrusion molding device for processing antibacterial plastic powder. This device aims to solve the problem of lightweight plastic powder easily scattering during injection into the mold, causing material loss. The key technical points are: an extrusion molding device for processing antibacterial plastic powder includes a worktable and an upper die punch. Two support rods are symmetrically arranged on the worktable, with a crossbar between them. Two fixing blocks are symmetrically arranged on the crossbar. A spring is located on the side of fixing block one away from the crossbar, and a second fixing block is located at the other end of the spring. Sliding rods are rotatably connected to the two fixing blocks two, and these sliding rods are slidably connected to the support rods. A storage box is fixedly connected to the end of the two sliding rods closest to each other. This utility model's extrusion molding device for processing antibacterial plastic powder uses a discharge port and a pressing block to reciprocate and align with the mold. During this reciprocating movement, the mold remains stationary during injection and molding, and the plastic powder is discharged from the discharge port into the mold, thereby reducing plastic powder loss.

[0004] Although the aforementioned patent uses the discharge port and the pressing block to reciprocate and align the mold, and keeps the mold stationary during the injection and molding process, and the discharge port extends into the mold to discharge the plastic powder during injection, thereby reducing plastic powder loss, it is inconvenient to demold the pressed plastic powder block in actual use. The plastic powder block needs to be pried out of the mold box manually, and the device needs to be stopped during demolding. This makes continuous pressing inconvenient, reduces the extrusion molding efficiency, and causes inconvenience to users.

[0005] Therefore, it is necessary to modify it so that after extrusion molding is completed, the plastic powder block is demolded by the ejection mechanism to speed up the demolding efficiency. At the same time, while demolding is performed on one side of the mold box, extrusion molding is performed on the other side. The extrusion molding, demolding and plastic powder are added alternately to improve the extrusion molding efficiency and make it more convenient for users. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide an extrusion molding device for antibacterial plastic powder processing. This device features the ability to demold the plastic powder block via an ejector mechanism after extrusion molding, accelerating demolding efficiency. Simultaneously, while demolding occurs on one side of the mold box, extrusion molding continues on the other side, alternating between extrusion molding, demolding, and powder addition, thus improving extrusion molding efficiency and providing convenience for users. This solves the problems of inconvenient demolding of the pressed plastic powder block, requiring manual prying of the block from the mold box, and the need to stop the device during demolding, hindering continuous pressing, reducing extrusion molding efficiency, and causing inconvenience to users.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an extrusion molding device for processing antibacterial plastic powder, comprising a base plate, support rods fixedly connected to the four corners of the top of the base plate, and a top plate fixedly connected to the top of the support rods; electric telescopic rods fixedly connected to the left and right sides of the top of the base plate, and mold boxes fixedly connected to the tops of the two electric telescopic rods; an ejection mechanism slidably connected inside the mold box; the bottom of the ejection mechanism fixedly connected to the top of the base plate; a stepper motor fixedly connected to the top of the top plate; the output end of the stepper motor extending through to the bottom of the top plate and fixedly connected to a connecting plate; a pressure module corresponding to the mold box fixedly connected to the left side of the bottom of the connecting plate; and a storage box corresponding to the mold box fixedly connected to the right side of the bottom of the connecting plate; and a discharge pipe connected to the bottom of the storage box.

[0008] As a preferred embodiment of this utility model, the ejection mechanism includes through holes extending vertically through the front and rear sides of the bottom of the mold box, and a tamping rod is slidably connected inside the through holes. The top of the tamping rod is fixedly connected to an ejector plate located inside the mold box. The ejector plate is slidably connected to the inner wall of the mold box on all four sides. A hollow column is slidably connected to the lower surface of the tamping rod, and the bottom of the tamping rod is fixedly connected to the top of the base plate.

[0009] As a preferred embodiment of this utility model, a slip ring is fixedly connected to the center of the bottom of the top plate and sleeved on the outside of the output end of the stepper motor, and an annular slide rail that cooperates with the slip ring is fixedly connected to the top of the connecting plate, and the surface of the slip ring is slidably connected to the inner wall of the annular slide rail.

[0010] As a preferred embodiment of this utility model, a stabilizing sleeve is fixedly connected to the outer side of the mold box, and a stabilizing rod is slidably connected to the inner wall of the stabilizing sleeve. The top end of the stabilizing rod is fixedly connected to the bottom of the top plate, and the bottom end of the stabilizing rod is fixedly connected to the top of the bottom plate.

[0011] As a preferred embodiment of this utility model, the top of the jacking plate is fixedly connected to a pressure-resistant anti-stick plate, and the bottom of the tamping rod is fixedly connected to a limiting buffer pad located inside the hollow column, the surface of the limiting buffer pad being slidably connected to the inner wall of the hollow column.

[0012] In a preferred embodiment of this invention, the retracted length of the electric telescopic rod and the distance from the bottom of the mold box to the top of the hollow column are the same as the distance from the top of the jacking plate to the top of the mold box; the extended height of the electric telescopic rod and the distance from the bottom of the tamping rod to the top of the inner wall of the hollow column are the same as the distance from the bottom of the pressing module to the top of the jacking plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model involves adding plastic powder to the mold box located on the right side of the base plate using a storage tank. Then, a stepper motor is started, causing the connecting plate to rotate one revolution, thus swapping the positions of the storage tank and the pressing module. Next, plastic powder is added to the mold box on the left side of the base plate through the storage tank. Simultaneously, the electric telescopic rod on the right side of the base plate is activated, extending it and moving the right mold box upwards towards the pressing module. The pressing module then extrudes and molds the plastic powder inside. Finally, the electric telescopic rod on the right side retracts, moving the mold box downwards until it is fully retracted. As the mold box continues to move downwards, the top of the ejector mechanism is activated. The powder block is ejected from the mold box, completing the demolding process. The operator removes the powder block, then resets the electric telescopic rod, restarts the stepper motor, and the pressure module and storage box continue to switch positions. The electric telescopic rod on the left is activated to repeat the above operation, demolding the pressure box. The mold box on the right is reset to continue adding powder. This process is repeated, achieving the effect of demolding the powder block through the ejection mechanism after extrusion molding, thus accelerating the demolding efficiency. At the same time, while demolding is performed on one side of the mold box, extrusion molding is carried out on the other side. This alternating process of extrusion molding, demolding, and powder addition improves extrusion molding efficiency and provides convenience for the user.

[0015] 2. This utility model utilizes a combination of a tamping rod, an ejector plate, and a hollow column. When plastic powder is injected into the mold box and pressed upwards by activating an electric telescopic rod, the ejector plate is located at the bottom of the inner wall of the mold box, and the tamping rod slides upwards inside the hollow column without affecting the movement of the mold box. After pressing, the mold box moves downwards by retracting the electric telescopic rod, which in turn moves the ejector plate and the tamping rod downwards. When the bottom of the tamping rod contacts the bottom of the inner wall of the hollow column, the ejector plate can no longer move downwards until the electric telescopic rod is fully retracted, the mold box moves downwards, and the plastic powder block inside is ejected, thus improving demolding efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the left sectional view of the present invention;

[0019] Figure 4 This is a frontal sectional view of the present invention.

[0020] In the diagram: 1. Base plate; 2. Top plate; 3. Electric telescopic rod; 4. Mold box; 5. Ejection mechanism; 6. Stepper motor; 7. Connecting plate; 8. Pressing module; 9. Storage box; 10. Tamping rod; 11. Ejector plate; 12. Hollow column; 13. Slip ring; 14. Circular slide rail; 15. Stabilizing sleeve; 16. Stabilizing rod; 17. Pressure-resistant anti-stick plate; 18. Limiting buffer pad. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 4 As shown, the present invention provides an extrusion molding device for processing antibacterial plastic powder, including a base plate 1. Support rods are fixedly connected to the four corners of the top of the base plate 1, and a top plate 2 is fixedly connected to the top of each support rod. Electric telescopic rods 3 are fixedly connected to the left and right sides of the top of the base plate 1, and mold boxes 4 are fixedly connected to the tops of the two electric telescopic rods 3. An ejection mechanism 5 is slidably connected inside the mold box 4, and the bottom of the ejection mechanism 5 is fixedly connected to the top of the base plate 1. A stepper motor 6 is fixedly connected to the top of the top plate 2, and the output end of the stepper motor 6 extends through to the bottom of the top plate 2 and is fixedly connected to a connecting plate 7. A pressure module 8, corresponding to the mold box 4, is fixedly connected to the left side of the bottom of the connecting plate 7, and a storage box 9, corresponding to the mold box 4, is fixedly connected to the right side of the bottom of the connecting plate 7. A discharge pipe is connected to the bottom of the storage box 9, and a feeding valve pipe is connected to the back of the storage box 9.

[0023] refer to Figure 3 The ejection mechanism 5 includes through holes extending vertically through the front and rear sides of the bottom of the mold box 4, and a tamping rod 10 is slidably connected inside the through holes. The top of the tamping rod 10 is fixedly connected to an ejector plate 11 located inside the mold box 4. The ejector plate 11 is slidably connected to the inner wall of the mold box 4 on all four sides. A hollow column 12 is slidably connected to the lower surface of the tamping rod 10, and the bottom of the tamping rod 10 is fixedly connected to the top of the base plate 1.

[0024] As a technical optimization of this utility model, by setting up the tamping rod 10, the ejector plate 11 and the hollow column 12 for coordinated use, when the plastic powder is injected into the mold box 4 and the electric telescopic rod 3 is activated to move upward for pressing, the ejector plate 11 is located at the bottom of the inner wall of the mold box 4, and the tamping rod 10 slides upward inside the hollow column 12 without affecting the movement of the mold box 4. After pressing is completed, the mold box 4 moves downward by the retraction of the electric telescopic rod 3, which in turn moves the ejector plate 11 and the tamping rod 10 downward. When the bottom of the tamping rod 10 contacts the bottom of the inner wall of the hollow column 12, the ejector plate 11 can no longer move downward until the electric telescopic rod 3 is fully retracted, the mold box 4 moves downward, and the plastic powder block inside is ejected, thus improving the demolding efficiency.

[0025] refer to Figure 4 A slip ring 13 is fixedly connected to the center of the bottom of the top plate 2 and sleeved on the outside of the output end of the stepper motor 6. An annular slide rail 14 that works with the slip ring 13 is fixedly connected to the top of the connecting plate 7. The surface of the slip ring 13 is slidably connected to the inner wall of the annular slide rail 14.

[0026] As a technical optimization of this utility model, by setting the slip ring 13 and the annular slide rail 14 to work together, when the stepper motor 6 starts and drives the connecting plate 7 to rotate, the annular slide rail 14 slides on the surface of the slip ring 13, which has a reinforcing and limiting effect on the connecting plate 7, and avoids the connecting plate 7 from shaking and tilting during rotation, which would cause the pressure module 8 and the storage box 9 to be unable to align with the mold box 4, thus affecting the use.

[0027] refer to Figure 2 A stabilizing sleeve 15 is fixedly connected to the outer side of the mold box 4. A stabilizing rod 16 is slidably connected to the inner wall of the stabilizing sleeve 15. The top end of the stabilizing rod 16 is fixedly connected to the bottom of the top plate 2, and the bottom end of the stabilizing rod 16 is fixedly connected to the top of the bottom plate 1.

[0028] As a technical optimization of this utility model, by setting the stabilizing sleeve 15 and the stabilizing rod 16 in cooperation, when the mold box 4 moves up and down with the start of the electric telescopic rod 3, the stabilizing sleeve 15 slides up and down on the surface of the stabilizing rod 16, which plays a stabilizing and reinforcing role for the mold box 4, so that it can only move vertically up and down, and avoids the mold box 4 from shaking and tilting when moving, which would affect its use.

[0029] refer to Figure 3 The top of the jacking plate 11 is fixedly connected to a pressure-resistant anti-stick plate 17, and the bottom of the tamping rod 10 is fixedly connected to a limiting buffer pad 18 located inside the hollow column 12. The surface of the limiting buffer pad 18 is slidably connected to the inner wall of the hollow column 12.

[0030] As a technical optimization of this utility model, by setting the pressure-resistant anti-stick plate 17, the pressure resistance of the top plate 11 is increased, avoiding damage during pressing. At the same time, it reduces adhesion to the plastic powder and improves the demolding effect. By setting the limiting buffer pad 18, the tamping rod 10 is limited, preventing the tamping rod 10 from falling out of the hollow column 12 when moving upward, which would affect its use. At the same time, it reduces the impact force of the bottom of the tamping rod 10 on the hollow column 12 during demolding.

[0031] refer to Figure 3 The retracted length of the electric telescopic rod 3 and the distance from the bottom of the mold box 4 to the top of the hollow column 12 are the same as the distance from the top of the jacking plate 11 to the top of the mold box 4. The extended height of the electric telescopic rod 3 and the distance from the bottom of the tamping rod 10 to the top of the inner wall of the hollow column 12 are the same as the distance from the bottom of the pressing module 8 to the top of the jacking plate 11.

[0032] As a technical optimization of this utility model, by setting the retracted length of the electric telescopic rod 3 and the distance from the bottom of the mold box 4 to the top of the hollow column 12 to be the same as the distance from the top of the top of the top platen 11 to the top of the mold box 4, it is ensured that when the electric telescopic rod 3 is fully retracted, the top of the top platen 11 will push the pressed plastic powder block out of the mold box 4 for easy collection. By setting the extended height of the electric telescopic rod 3 and the distance from the bottom of the tamping rod 10 to the top of the inner wall of the hollow column 12 to be the same as the distance from the bottom of the pressing module 8 to the top of the top platen 11, it is ensured that when the electric telescopic rod 3 drives the mold box 4 to move upward, the pressing module 8 can enter the mold box 4 to effectively press the plastic powder, thereby improving the pressing effect.

[0033] The working principle and usage process of this utility model are as follows: Plastic powder is injected into the mold box 4 located on the right side of the base plate 1 through the storage tank 9. Then, the stepper motor 6 is started, and its rotation once drives the connecting plate 7 to rotate once, thus exchanging the positions of the storage tank 9 and the pressing module 8. Then, plastic powder is injected into the mold box 4 on the left side through the storage tank 9. Simultaneously, the electric telescopic rod 3 on the right side of the base plate 1 is activated to extend it, causing the mold box 4 on the right side to move upwards and closer to the pressing module 8. The pressing module 8 then extrudes and molds the plastic powder inside. Then, the electric telescopic rod 3 on the right side retracts, causing the mold box 4 to move downwards until the electric telescopic rod 3 is fully retracted. The mold box 4 continues to move downwards. When the ejector mechanism 5 is activated, the top of the plastic powder block is ejected from the mold box 4, completing the demolding. The operator removes the plastic powder block, then resets the electric telescopic rod 3, and starts the stepper motor 6 again. The pressure module 8 and the storage box 9 continue to switch positions. The electric telescopic rod 3 on the left is started to repeat the above operation to demold the pressing box. The mold box 4 on the right is reset to continue adding plastic powder. This process is repeated, achieving the effect of demolding the plastic powder block through the ejector mechanism 5 after extrusion molding, thus accelerating the demolding efficiency. At the same time, while demolding is performed on one side of the mold box 4, extrusion molding is performed on the other side. The extrusion molding, demolding, and plastic powder addition are repeated alternately, improving the extrusion molding efficiency and making it convenient for users.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An antibacterial type plastic powder processing extrusion molding device comprising a base plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected with a support rod, and the top of the support rod is fixedly connected with a top plate (2), the left and right sides of the top of the bottom plate (1) are fixedly connected with an electric telescopic rod (3), and the top of the two electric telescopic rods (3) is fixedly connected with a mold box (4), the inside of the mold box (4) is slidably connected with an ejection mechanism (5), the bottom of the ejection mechanism (5) is fixedly connected with the top of the bottom plate (1), the top of the top plate (2) is fixedly connected with a stepping motor (6), the output end of the stepping motor (6) penetrates through the bottom of the top plate (2) and is fixedly connected with a connecting plate (7), the left side of the bottom of the connecting plate (7) is fixedly connected with a pressing module (8) corresponding to the mold box (4), and the right side of the bottom of the connecting plate (7) is fixedly connected with a storage tank (9) corresponding to the mold box (4). The bottom of the storage tank (9) is communicated with a discharge pipe.

2. The antibacterial type plastic powder processing extrusion molding device according to claim 1, characterized in that: The ejection mechanism (5) comprises a through hole opened on the bottom of the mold box (4) and penetrating through the top and bottom of the front and rear sides, and a tamping rod (10) slidably connected in the through hole, the top of the tamping rod (10) is fixedly connected with a jacking disc (11) located in the inside of the mold box (4), the jacking disc (11) is slidably connected with the inner wall of the mold box (4) around, and the surface of the tamping rod (10) is slidably connected with a hollow column (12) below.

3. The antibacterial type plastic powder processing extrusion molding device according to claim 1, characterized in that: The bottom of the top plate (2) is fixedly connected with a slip ring (13) sleeved with the outside of the output end of the stepping motor (6), the top of the connecting plate (7) is fixedly connected with an annular slide rail (14) used in cooperation with the slip ring (13), and the surface of the slip ring (13) is slidably connected with the inner wall of the annular slide rail (14).

4. The antibacterial type plastic powder processing extrusion molding device according to claim 1, characterized in that: The outside of the mold box (4) is fixedly connected with a stabilizing sleeve (15), the inner wall of the stabilizing sleeve (15) is slidably connected with a stabilizing rod (16), the top end of the stabilizing rod (16) is fixedly connected with the bottom of the top plate (2), and the bottom end of the stabilizing rod (16) is fixedly connected with the top of the bottom plate (1).

5. The antibacterial type plastic powder processing extrusion molding device according to claim 2, characterized in that: The top of the jacking disc (11) is fixedly connected with a pressure-resistant anti-sticking plate (17), the bottom end of the tamping rod (10) is fixedly connected with a limiting buffer pad (18) located in the inside of the hollow column (12), and the surface of the limiting buffer pad (18) is slidably connected with the inner wall of the hollow column (12).

6. The antibacterial type plastic powder processing extrusion molding device according to claim 1, characterized in that: The contraction length of the electric telescopic rod (3) and the distance from the bottom of the mold box (4) to the top of the hollow column (12) are the same as the distance from the top of the jacking disc (11) to the top of the mold box (4), and the extension height of the electric telescopic rod (3) and the distance from the bottom end of the tamping rod (10) to the top of the inner wall of the hollow column (12) are the same as the distance from the bottom of the pressing module (8) to the top of the jacking disc (11).

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