Grinding device special for plastic preparation

Abstract

The utility model discloses a special grinding device for plastic preparation, which comprises a barrel-shaped box body, a bearing is fixedly arranged on the inner wall of the barrel-shaped box body, a grinding disc is fixedly arranged on the inner ring of the bearing, and grinding holes distributed at equal intervals are formed in the outer wall of the grinding disc. A vertically-downward material pushing barrel is fixedly arranged on one side of the top of the barrel-shaped box body through an opening, and the outer wall of the bottom of the material pushing barrel is in clearance fit with the outer wall of the top of the material grinding disc. The air inlet fan at the top of the air inlet sleeve blows air to the abrasive disc, strong airflow can directly act on the surface of the abrasive disc and in abrasive holes, attached plastic powder is effectively blown away in time, it is guaranteed that the abrasive disc and the abrasive holes are always in a clean state, the effective working area of the abrasive disc and the abrasive holes is maintained, and the service life of the abrasive disc is prolonged. The plastic raw materials can make full contact with the material grinding structure and are fully ground, the powder grinding efficiency is improved, the ground plastic powder is uniform in particle size, and therefore the overall quality of products is improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing equipment technology, specifically to a special grinding device for plastic preparation. Background Technology

[0002] In the plastics processing industry, the grinding process plays a crucial role in the subsequent processing of plastic raw materials and the final quality of products. In the operation of traditional plastic grinding equipment, the grinding disc, as the core grinding component, needs to continuously perform high-intensity grinding operations on the plastic raw materials.

[0003] However, due to the inherent characteristics of plastic powder, which is prone to adhesion and accumulation, a large amount of plastic powder will inevitably adhere to the surface of the grinding disc and the inside of the grinding holes during the grinding process. As the grinding continues, these adhered powders will gradually accumulate, causing the effective working area of ​​the grinding disc and grinding holes to continuously decrease. This not only leads to insufficient contact between the plastic raw material and the abrasive structure, affecting the grinding effect and reducing grinding efficiency, thus reducing the amount of plastic powder ground per unit time, but also causes uneven particle size of the ground plastic powder, with some powder particles being too large or too small, making it difficult to meet the strict requirements for plastic powder particle size in subsequent production, thereby seriously affecting the overall quality of plastic products.

[0004] To address these issues, we propose a specialized grinding device for plastic preparation. Utility Model Content

[0005] The purpose of this invention is to provide a special grinding device for plastic preparation, so as to solve the above-mentioned shortcomings in the technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a special grinding device for plastic preparation, comprising a barrel-shaped box, a bearing fixedly mounted on the inner wall of the barrel-shaped box, an abrasive disc fixedly mounted on the inner ring of the bearing, abrasive holes evenly distributed on the outer wall of the abrasive disc, a vertically downward pushing cylinder fixedly mounted on one side of the top of the barrel-shaped box through an opening, the bottom outer wall of the pushing cylinder being clearance-fitted with the top outer wall of the abrasive disc, a motor fixing cover fixedly mounted at the center of the top of the barrel-shaped box, a vertically downward electric motor installed inside the motor fixing cover, a rotating rod fixedly mounted at the output end of the electric motor, a positioning plate fixedly mounted at the bottom end of the rotating rod, an air inlet sleeve fixedly mounted on one side of the top of the barrel-shaped box through an opening, the bottom outer wall of the air inlet sleeve being clearance-fitted with the top outer wall of the abrasive disc, and an air inlet fan fixedly mounted on the top inner wall of the air inlet sleeve.

[0007] Preferably, a feeding hopper is fixedly provided on the top outer wall of the feeding cylinder, a first fixing ring is fixedly provided on the outer wall of the feeding hopper, a second fixing ring is fixedly provided on the top of the first fixing ring by a bracket, and a vertically downward reciprocating push rod motor is fixedly provided on the inner wall of the second fixing ring.

[0008] Preferably, the reciprocating push rod motor is located at the top center of the pusher cylinder, the output end of the reciprocating push rod motor is fixedly provided with a push rod, the outer wall of the push rod is slidably connected with a compression sleeve, one bottom end of the push rod is fixedly provided with a spring, one bottom end of the spring is fixedly connected to the bottom inner wall of the compression sleeve, the bottom outer wall of the compression sleeve is fixedly provided with an extrusion disc, and the outer wall of the extrusion disc is clearance-fitted with the inner wall of the pusher cylinder.

[0009] Preferably, the outer wall of the positioning disk has second positioning holes that are evenly distributed, and the top center of the abrasive disk has first positioning holes that are evenly distributed in a ring. The inner walls of the first positioning holes and the second positioning holes are equipped with matching bolts.

[0010] Preferably, the top sidewall of the barrel-shaped box has vent holes that are evenly distributed.

[0011] Preferably, the bottom center of the barrel-shaped box is connected to a vertically downward discharge pipe through an opening.

[0012] Preferably, the bottom outer wall of the barrel-shaped box is provided with a support ring by welding, and the outer wall of the support ring is provided with equally spaced, downwardly curved support legs by welding.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] Air is blown onto the abrasive disc by the air intake fan at the top of the air intake sleeve. The strong airflow can directly act on the surface of the abrasive disc and inside the abrasive holes, blowing away the attached plastic powder in a timely and effective manner. This ensures that the abrasive disc and abrasive holes are always clean, maintaining their effective working area. This allows the plastic raw material to fully contact the abrasive structure and be fully ground, which not only improves the grinding efficiency but also makes the ground plastic powder have a uniform particle size, thereby improving the overall quality of the product. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1This is a three-dimensional structural diagram of a special grinding device for plastic preparation according to the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of a special grinding device for plastic preparation according to the present invention;

[0018] Figure 3 This is a schematic diagram of the reciprocating push rod motor structure of a special grinding device for plastic preparation according to this utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the compression sleeve of a special grinding device for plastic preparation according to this utility model;

[0020] Figure 5 This is a schematic diagram of the electric motor structure of a special grinding device for plastic preparation according to this utility model;

[0021] Figure 6 This is a schematic diagram of the abrasive disc structure of a special grinding device for plastic preparation according to this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Barrel-shaped box body, 2. Push cylinder, 3. Discharge hopper, 4. First fixing ring, 5. Second fixing ring, 6. Reciprocating push rod motor, 7. Push rod, 8. Compression sleeve, 9. Spring, 10. Extrusion plate, 11. Bearing, 12. Grinding disc, 13. Grinding hole, 14. First positioning hole, 15. Motor fixing cover, 16. Electric motor, 17. Rotating rod, 18. Positioning plate, 19. Second positioning hole, 20. Air inlet sleeve, 21. Air inlet fan, 22. Exhaust hole, 23. Discharge pipe, 24. Support ring, 25. Support legs. Detailed Implementation

[0024] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0025] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0026] Example 1

[0027] Refer to the instruction manual appendix Figure 1-6 A special grinding device for plastic preparation includes a barrel-shaped box 1. A bearing 11 is fixedly installed on the inner wall of the barrel-shaped box 1. An abrasive disc 12 with equally spaced abrasive holes 13 is fixed on the inner ring of the bearing 11. The abrasive disc 12 can rotate. A vertically downward pushing cylinder 2 is fixedly installed at the opening on one side of the top of the barrel-shaped box 1, so that the bottom outer wall of the pushing cylinder 2 is clearance-fitted with the top outer wall of the abrasive disc 12. A motor fixing cover 15 is fixedly installed at the center of the top of the barrel-shaped box 1. A vertically downward electric motor 16 is installed inside the motor fixing cover 15. A rotating rod 17 is fixed to the output end of the electric motor 16. A positioning plate 18 is fixed to the bottom end of the rotating rod 17. At the same time, a second positioning hole 19 is equally spaced on the outer wall of the positioning plate 18. A first positioning hole 14 is equally spaced in a ring at the center of the top of the abrasive disc 12. The first positioning hole 14 and the second positioning hole 19 need to correspond in position to facilitate the installation of matching bolts.

[0028] Example 2

[0029] Based on Embodiment 1, an air inlet sleeve 20 is fixedly installed at the opening on the other side of the top of the barrel-shaped box 1. The bottom outer wall of the air inlet sleeve 20 is clearance-fitted with the top outer wall of the abrasive disc 12. An air inlet fan 21 is fixedly installed on the top inner wall of the air inlet sleeve 20. A feed hopper 3 is fixedly installed on the top outer wall of the pusher cylinder 2. A first fixing ring 4 is fixedly installed on the outer wall of the feed hopper 3. A second fixing ring 5 is fixedly installed on the top of the first fixing ring 4 via a bracket. A vertical support is fixedly installed on the inner wall of the second fixing ring 5. A downward reciprocating push rod motor 6 is positioned at the top center of the pusher cylinder 2. A push rod 7 is fixedly installed at the output end of the reciprocating push rod motor 6. A compression sleeve 8 is slidably connected to the outer wall of the push rod 7. A spring 9 is fixedly installed at one bottom end of the push rod 7. The bottom end of the spring 9 is fixedly connected to the bottom inner wall of the compression sleeve 8. An extrusion disc 10 is fixedly installed on the bottom outer wall of the compression sleeve 8. The outer wall of the extrusion disc 10 is clearance-fitted with the inner wall of the pusher cylinder 2. The extrusion disc 10 can move up and down inside the pusher cylinder 2.

[0030] Example 3

[0031] Based on Embodiment 1, vent holes 22 are evenly distributed on the top side wall of the barrel-shaped box 1 for venting gas. A vertically downward discharge pipe 23 is connected to the bottom center of the barrel-shaped box 1 through an opening to allow the ground plastic powder to be discharged. A support ring 24 is fixedly installed on the bottom outer wall of the barrel-shaped box 1 by welding. Equally distributed and downwardly curved support legs 25 are fixedly installed on the outer wall of the support ring 24 by welding, thereby placing the present invention in a designated position.

[0032] Working principle of this utility model:

[0033] Refer to the instruction manual appendix Figure 1-6 In the process of using this utility model, plastic is added from the hopper 3. The reciprocating push rod motor 6 is started to drive the push rod 7 and the extrusion plate 10 to reciprocate, pushing the plastic raw material into the top of the grinding disc 12. At this time, the electric motor 16 drives the rotating rod 17 and the positioning plate 18 to rotate, thereby driving the grinding disc 12 to rotate. The plastic raw material is ground into powder through the grinding disc 12 and the grinding hole 13. The air intake fan 21 at the top of the air intake sleeve 20 blows air into the grinding disc 12. The strong airflow can directly act on the surface of the grinding disc 12 and the grinding hole 13, blowing away the attached plastic powder. The gas that enters is discharged from the exhaust hole 22.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A special grinding device for plastic preparation, comprising a barrel-shaped housing (1), characterized in that: The inner wall of the barrel-shaped box (1) is fixedly provided with a bearing (11), and the inner ring of the bearing (11) is fixedly provided with an abrasive disc (12). The outer wall of the abrasive disc (12) has abrasive holes (13) distributed at equal intervals. A vertically downward pusher cylinder (2) is fixedly provided on one side of the top of the barrel-shaped box (1) through an opening. The bottom outer wall of the pusher cylinder (2) is clearance-fitted with the top outer wall of the abrasive disc (12). A motor fixing cover (15) is fixedly provided at the center of the top of the barrel-shaped box (1). A vertically downward electric motor (16) is installed inside the motor mounting cover (15). A rotating rod (17) is fixedly provided at the output end of the electric motor (16). A positioning plate (18) is fixedly provided at the bottom end of the rotating rod (17). An air inlet sleeve (20) is fixedly provided on one side of the top of the barrel-shaped box (1) through an opening. The bottom outer wall of the air inlet sleeve (20) is clearance-fitted with the top outer wall of the abrasive disc (12). An air inlet fan (21) is fixedly provided on the top inner wall of the air inlet sleeve (20).

2. The special grinding device for plastic preparation according to claim 1, characterized in that: The top outer wall of the pusher cylinder (2) is fixedly provided with a feeding hopper (3), the outer wall of the feeding hopper (3) is fixedly provided with a first fixing ring (4), the top of the first fixing ring (4) is fixedly provided with a second fixing ring (5) by a bracket, and the inner wall of the second fixing ring (5) is fixedly provided with a vertically downward reciprocating push rod motor (6).

3. The special grinding device for plastic preparation according to claim 2, characterized in that: The reciprocating push rod motor (6) is located at the top center of the pusher cylinder (2). The output end of the reciprocating push rod motor (6) is fixedly provided with a push rod (7). The outer wall of the push rod (7) is slidably connected with a compression sleeve (8). One bottom end of the push rod (7) is fixedly provided with a spring (9). One bottom end of the spring (9) is fixedly connected to the bottom inner wall of the compression sleeve (8). The bottom outer wall of the compression sleeve (8) is fixedly provided with an extrusion plate (10). The outer wall of the extrusion plate (10) is clearance-fitted with the inner wall of the pusher cylinder (2).

4. The special grinding device for plastic preparation according to claim 1, characterized in that: The outer wall of the positioning disk (18) has second positioning holes (19) that are evenly distributed, and the top center of the abrasive disk (12) has first positioning holes (14) that are evenly distributed in a ring. The inner walls of the first positioning holes (14) and the second positioning holes (19) are equipped with matching bolts.

5. The special grinding device for plastic preparation according to claim 1, characterized in that: The top sidewall of the barrel-shaped box (1) has equidistantly distributed exhaust holes (22).

6. The special grinding device for plastic preparation according to claim 1, characterized in that: The bottom center of the barrel-shaped box (1) is connected to a vertically downward discharge pipe (23) through an opening.

7. The special grinding device for plastic preparation according to claim 1, characterized in that: The bottom outer wall of the barrel-shaped box (1) is fixed with a support ring (24) by welding, and the outer wall of the support ring (24) is fixed with equally spaced, downwardly curved support legs (25).

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