Grinding machine for high molecular weight polyethylene production

Abstract

The utility model relates to the technical field of grinding mills, and discloses a high molecular weight polyethylene production grinding miller which comprises a motor, the output end of the motor is fixedly connected with a first rotating shaft, the upper side and the lower side of the outer wall of the first rotating shaft are both fixedly connected with cutter fixing rings, and the outer walls of the cutter fixing rings are fixedly connected with cutting blades. A first shell is arranged on the outer side of the cutting blade, a gear is fixedly connected to the bottom end of a first rotating shaft, an upper grinding disc is connected to the outer side of the gear in a meshed mode, a feeding port is formed in the upper grinding disc, a lower grinding disc is arranged at the bottom of the upper grinding disc, and discharging grooves are formed in the front side and the rear side of the outer wall of the lower grinding disc. According to the grinding device, the rotating shaft I is driven by the output end of the motor so as to drive the cutting blade to crush materials for the first time, then the gear is driven by the rotating shaft I, and the gear drives the upper grinding disc and the lower grinding disc to perform secondary grinding treatment.

Description

Technical Field

[0001] This utility model relates to the field of grinding machine technology, and in particular to a grinding machine for the production of high molecular weight polyethylene. Background Technology

[0002] High molecular weight polyethylene (HMWPE) is a high-performance thermoplastic engineering plastic with extremely high molecular weight, which gives it many excellent properties. First, as a polymer compound, it has extremely high wear resistance, making it widely used in heavy industry and heavy-duty transportation, such as for transporting and bearing heavy loads. It also has good self-lubricating properties and a very low coefficient of friction, making it suitable for manufacturing various objects requiring low friction resistance, such as drawer slides and clothing zippers. In addition, HMWPE shares the same chemical properties as most polymers, exhibiting strong corrosion resistance and impact resistance. These properties have indispensable and important applications in many fields, including chemical processing, packaging, and maritime navigation.

[0003] In the production of high molecular weight polyethylene (HMWPE), grinding the material to the appropriate conditions is a crucial step. The raw HMWPE material is not ideal; it may vary in size and shape. Grinding is necessary to break down the raw material into finer particles, facilitating subsequent processing and molding. During injection molding, uniform and fine particles can better fill the mold, improving molding results and dimensional accuracy, reducing defective products, and saving raw materials. The surface of HMWPE may not be smooth; grinding produces smoother surfaces and improves the surface finish, reducing particle adsorption during production and preventing material buildup and blockages, thus increasing production efficiency. Traditional grinding mills do not grind HMWPE material sufficiently, resulting in uneven particle size and insufficient grinding fineness. Larger material volumes also lead to poor grinding effects. These problems remain unresolved by traditional HMWPE grinding mills. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a grinding mill for the production of high molecular weight polyethylene, which improves the existing technology by addressing the problems that the grinding process of high molecular weight polyethylene fails to meet the requirements of the material to be used in the production process, the grinding efficiency is too low, the particle size of the ground material is too large or too small, and the material is not ground sufficiently.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a grinding machine for producing high molecular weight polyethylene, comprising a motor, a rotating shaft fixedly connected to the output end of the motor, and tool fixing rings fixedly connected to the upper and lower sides of the outer wall of the rotating shaft. A cutting blade is fixedly connected to the outer wall of the tool fixing ring, and a housing is provided on the outer side of the cutting blade. A gear is fixedly connected to the bottom end of the rotating shaft, and an upper grinding disc is meshed with the outer side of the gear. A feed inlet is provided inside the upper grinding disc, and a lower grinding disc is provided at the bottom of the upper grinding disc. Discharge grooves are provided on the front and rear sides of the outer wall of the lower grinding disc, and grinding disc grooves are provided on the inner sides of both the upper and lower grinding discs. An inner wall cleaning structure is provided on the top of the outer wall of the rotating shaft for cleaning the grinding machine.

[0006] As a further description of the above technical solution:

[0007] The inner wall cleaning structure includes a fixing block one, the inner side of which is fixedly connected to the top of the outer wall of the rotating shaft one. Brush connecting rods are fixedly connected to both the left and right sides of the fixing block one. A plate-shaped brush is fixedly connected to the end of the brush connecting rod. A fixing block two is fixedly connected to the middle of the outer wall of the brush connecting rod. A side support rod is fixedly connected to the top of the outer wall of the fixing block two. A long strip brush is fixedly connected to the top of the side support rod. Brush bristles are fixedly connected to the top of the long strip brush. Material baffles are fixedly connected to both the front and rear sides of the outer wall of the fixing block one. The material baffles are fixedly connected by fixing rods.

[0008] As a further description of the above technical solution:

[0009] The motor is provided with a protective shell on its outer side.

[0010] As a further description of the above technical solution:

[0011] The bottom of the lower grinding disc is fixedly connected to a support platform, and the inner top of the support platform is engaged with a second outer shell. A window baffle is provided in the middle of the front side of the second outer shell, and a discharge port is provided at the bottom edge of the window baffle.

[0012] As a further description of the above technical solution:

[0013] A window fixing plate is fixedly connected to the front side of the window baffle, and a fixing nut is provided on the top of the window fixing plate.

[0014] As a further description of the above technical solution:

[0015] The bottom of the load-bearing platform is equipped with a support block.

[0016] As a further description of the above technical solution:

[0017] A fixed handle is provided at the top of the window baffle, and a rotating shaft is provided on the left side of the fixed handle.

[0018] As a further description of the above technical solution:

[0019] Support rod 2 is provided on both the left and right sides of the top of the support platform, and the support rod 2 is fixedly connected to support rod 1.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the motor output drives the rotating shaft to drive the cutting blade to crush the material for the first time. Then, the rotating shaft drives the gear, which drives the upper grinding disc and the lower grinding disc to perform a second grinding process.

[0022] 2. In this utility model, a fixing block is fixedly connected to a brush connecting rod, the brush connecting rod is fixedly connected to a side support rod, a fixing block is fixedly connected to a rotating shaft, and a fixing rod is fixedly connected to the fixing block. The rotating shaft drives the plate-shaped brush, the long strip brush, and the material baffle to clean the inside of the instrument. Attached Figure Description

[0023] Figure 1 This is a perspective view of the front side of the support platform of a grinding machine for producing high molecular weight polyethylene according to the present invention.

[0024] Figure 2 This utility model provides a structural diagram of the lower grinding disc of a grinding mill for producing high molecular weight polyethylene.

[0025] Figure 3 This utility model provides a structural diagram of the motor structure of a grinding machine for producing high molecular weight polyethylene.

[0026] Figure 4 This is a top view of the lower grinding disc of a grinding machine for producing high molecular weight polyethylene according to the present invention.

[0027] Figure 5 This is a schematic diagram of the lower grinding disc of a grinding machine for producing high molecular weight polyethylene according to this utility model;

[0028] Figure 6 This is a top view of the upper grinding disc of a grinding machine for producing high molecular weight polyethylene according to the present invention.

[0029] Figure 7 This is a bottom view of the upper grinding disc of a grinding machine for producing high molecular weight polyethylene, as proposed in this utility model.

[0030] Legend:

[0031] 1. Motor; 2. Inner wall cleaning structure; 201. Fixing block one; 202. Long strip brush; 203. Plate brush; 204. Fixing block two; 205. Brush bristles; 206. Side support rod; 207. Material baffle; 208. Brush connecting rod; 209. Fixing rod; 210. Support rod one; 211. Support rod two; 3. Rotating shaft one; 4. Cutting blade; 5. Upper grinding disc; 6. Lower grinding disc; 7. Discharge groove; 8. Grinding disc groove; 9. Gear; 10. Feed inlet; 11. Tool fixing ring; 12. Window fixing plate; 13. Fixing handle; 14. Outer shell one; 15. Window baffle; 16. Outer shell two; 17. Rotating shaft two; 18. Discharge port; 19. Support block; 20. Fixing nut; 21. Load-bearing platform; 22. Protective shell. Detailed Implementation

[0032] 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.

[0033] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 5 This utility model provides an embodiment of a grinding machine for producing high molecular weight polyethylene, comprising a motor 1, a rotating shaft 3 fixedly connected to the output end of the motor 1, and tool fixing rings 11 fixedly connected to the upper and lower sides of the outer wall of the rotating shaft 3. Cutting blades 4 are fixedly connected to the outer wall of the tool fixing rings 11, allowing the cutting blades 4 to rotate for initial material processing. A housing 14 is provided on the outer side of the cutting blades 4. A gear 9 is fixedly connected to the bottom end of the rotating shaft 3, driving the gear 9 to rotate. An upper gear 9 is meshed with the outer side of the gear 9. The grinding disc 5 has an inlet 10 inside and a lower grinding disc 6 at the bottom. The upper grinding disc 5 and the lower grinding disc 6 grind and discharge materials. The lower grinding disc 6 has discharge grooves 7 on the front and back sides of its outer wall and grinding disc grooves 8 on the inner sides of both the upper grinding disc 5 and the lower grinding disc 6. The material can be discharged from the discharge grooves 7 and the grinding disc grooves 8. The rotating shaft 3 has an inner wall cleaning structure 2 on its top outer wall. The inner wall cleaning structure 2 is used to clean the grinder. The motor 1 has a protective shell 22 on its outer side to keep the motor 1 clean.

[0034] Specifically, the motor 1 drives the rotating shaft 3 to rotate, causing the cutting blade 4 to cut the material. The material can then be further ground by the upper grinding disc 5 and the lower grinding disc 6, and finally discharged through the discharge groove 7 and the grinding disc groove 8.

[0035] Please see the appendix Figure 2 and attached Figure 3 The inner wall cleaning structure 2 includes a fixing block 201. The inner side of the fixing block 201 is fixedly connected to the top of the outer wall of the rotating shaft 3. Brush connecting rods 208 are fixedly connected to both the left and right sides of the fixing block 201. The fixing blocks 201 fix the various components. A plate-shaped brush 203 is fixedly connected to the end of the brush connecting rod 208. A fixing block 204 is fixedly connected to the middle of the outer wall of the brush connecting rod 208. A side support rod 206 is fixedly connected to the top of the outer wall of the fixing block 204, which can support the rear components for cleaning the instrument. A long strip brush 202 is fixedly connected to the top of the 6, and brush bristles 205 are fixedly connected to the top of the long strip brush 202 to clean the inside of the instrument. Material baffles 207 are fixedly connected to the front and rear sides of the outer wall of the fixed block 1 201. The material baffles 207 are fixedly connected by the fixed rod 209. The material baffles 207 can collect and discharge the material. Support rods 211 are provided on the left and right sides of the top of the support platform 21. Support rods 211 are fixedly connected to support rod 1 210. Support rods 1 210 and support rods 211 can fix the motor 1.

[0036] Specifically, the long brush 202 and the material baffle 207 can be rotated by the motor 1 to clean the inside of the instrument, and the material baffle 207 can be collected and discharged by rotation.

[0037] Please see the appendix Figure 5 Appendix Figure 6 and attached Figure 7 The bottom of the lower grinding disc 6 is fixedly connected to a support platform 21. The inner top of the support platform 21 is snapped with a second outer shell 16, which supports the entire instrument. A window baffle 15 is provided in the middle of the front side of the second outer shell 16. A discharge port 18 is provided at the bottom edge of the window baffle 15. The working status inside the instrument can be observed through the window baffle 15. A window fixing plate 12 is fixedly connected to the front side of the window baffle 15. A fixing nut 20 is provided on the top of the window fixing plate 12. The window baffle 15 is fixed to the second outer shell 16 by the window fixing plate 12 and the fixing nut 20.

[0038] Specifically, the entire instrument is supported and fixed in place, while the real-time situation inside the instrument can be observed. This allows for the handling and judgment of any unexpected problems, preventing damage to the instrument due to failure to detect problems in a timely manner.

[0039] Please see the appendix Figure 1 and attached Figure 4 The bottom of the support platform 21 is provided with a support block 19, which serves to support and fix the window baffle 15. The top of the window baffle 15 is provided with a fixed handle 13, and the left side of the fixed handle 13 is provided with a rotating shaft 17, which can control the opening and closing of the window baffle 15.

[0040] Specifically, the window cover 15 can be easily opened so that the instrument can be opened for inspection and repair when problems occur.

[0041] Working principle: When materials need to be ground, motor 1 is started, which drives the rotating shaft 3 to rotate. At the same time, the cutting blade 4 is fixed on the rotating shaft 3 and rotates with the rotating shaft 3. After being cut and crushed, the material enters the upper grinding disc 5 and the lower grinding disc 6 through the feed inlet 10. The upper grinding disc 5 and the lower grinding disc 6 are driven by the rotating shaft 3. Both the upper grinding disc 5 and the lower grinding disc 6 have grinding grooves 8 for more fine grinding. After further grinding, the material is discharged from the feed inlet 10, which realizes multi-stage grinding of materials, thereby achieving fine grinding of materials and ensuring grinding efficiency and quality.

[0042] When cleaning is required, start motor 1. Motor 1 will drive rotating shaft 3 to rotate. Brush connecting rod 208 is connected to rotating shaft 3 via fixing block 201 and rotates synchronously. Side support rod 206 and long strip brush 202 and plate brush 203 on brush connecting rod 208 will clean the inside of the instrument. When material is discharged from inlet 10, fixing rod 209 fixed to rotating shaft 3 by fixing block 201 drives material baffle 207 to sweep material out from outlet 18. The above components can clean the inside of the instrument, thereby extending the service life of the instrument.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grinding mill for producing high molecular weight polyethylene, comprising a motor (1), characterized in that: The output end of the motor (1) is fixedly connected to a rotating shaft (3). The upper and lower sides of the outer wall of the rotating shaft (3) are fixedly connected to a tool fixing ring (11). The outer wall of the tool fixing ring (11) is fixedly connected to a cutting blade (4). The outer side of the cutting blade (4) is provided with a housing (14). The bottom end of the rotating shaft (3) is fixedly connected to a gear (9). The outer side of the gear (9) is meshed with an upper grinding disc (5). The inside of the upper grinding disc (5) is provided with a feed inlet (10). The bottom of the upper grinding disc (5) is provided with a lower grinding disc (6). The front and rear sides of the outer wall of the lower grinding disc (6) are provided with discharge grooves (7). The inner sides of the upper grinding disc (5) and the lower grinding disc (6) are provided with grinding disc grooves (8). The top of the outer wall of the rotating shaft (3) is provided with an inner wall cleaning structure (2). The inner wall cleaning structure (2) is used to clean the grinding machine.

2. The grinding mill for producing high molecular weight polyethylene according to claim 1, characterized in that: The inner wall cleaning structure (2) includes a fixing block one (201), the inner side of the fixing block one (201) is fixedly connected to the top of the outer wall of the rotating shaft one (3), the left and right sides of the fixing block one (201) are fixedly connected to brush connecting rods (208), the end of the brush connecting rods (208) is fixedly connected to a plate-shaped brush (203), the middle of the outer wall of the brush connecting rods (208) is fixedly connected to a fixing block two (204), the top of the outer wall of the fixing block two (204) is fixedly connected to a side support rod (206), the top of the side support rod (206) is fixedly connected to a long strip brush (202), the top of the long strip brush (202) is fixedly connected to bristles (205), the front and rear sides of the outer wall of the fixing block one (201) are fixedly connected to material baffles (207), and the material baffles (207) are fixedly connected by fixing rods (209).

3. A grinding mill for producing high molecular weight polyethylene according to claim 1, characterized in that: The motor (1) is provided with a protective shell (22) on its outer side.

4. A grinding mill for producing high molecular weight polyethylene according to claim 1, characterized in that: The bottom of the lower grinding disc (6) is fixedly connected to a support platform (21), and the inner top of the support platform (21) is engaged with a second outer shell (16). A window baffle (15) is provided in the middle of the front side of the second outer shell (16), and a discharge port (18) is provided at the bottom edge of the window baffle (15).

5. A grinding mill for producing high molecular weight polyethylene according to claim 4, characterized in that: A window fixing plate (12) is fixedly connected to the front side of the window baffle (15), and a fixing nut (20) is provided on the top of the window fixing plate (12).

6. A grinding mill for producing high molecular weight polyethylene according to claim 4, characterized in that: The bottom of the load-bearing platform (21) is provided with a support block (19).

7. A grinding mill for producing high molecular weight polyethylene according to claim 4, characterized in that: The top of the window baffle (15) is provided with a fixed handle (13), and a rotating shaft (17) is provided on the left side of the fixed handle (13).

8. A grinding mill for producing high molecular weight polyethylene according to claim 4, characterized in that: The top left and right sides of the load-bearing platform (21) are provided with support rods two (211), which are fixedly connected to support rod one (210).

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