An underwater hot pelletizer for processing elastomeric plastic particles

Abstract

The utility model provides an underwater hot pelletizer for processing elastomer plastic particles, which relates to the technical field of elastomer plastic particle processing, including a feed pipe. In the utility model, the motor and the rotating shaft cooperate to drive the first auger blade, the annular frame and the second auger blade to rotate. When the first auger blade rotates, the melted plastic will be transported to the right and cooperate with the extrusion holes on the surface of the extrusion plate, so that the melted plastic is formed into strips, and the annular frame cooperates with the cutter to cut the strip plastic into plastic particles. During the process, the water pump cooperates with the water pipe, the four-way pipe and the water supply pipe to spray the cooling water in the water tank from the top and the front and back sides of the connecting shell. The extruded plastic strips will be quickly cooled and formed after contacting the cooling water, so that the plastic particles formed after cutting will not adhere to the surface of the cutter or even stick to each other, which greatly improves the quality of the processed elastomer plastic particles.

Description

Technical Field

[0001] The utility model relates to the technical field of elastomer plastic particle processing, in particular to an underwater hot pelletizer for elastomer plastic particle processing. Background Art

[0002] Elastomer is a polymer material that has rubber elasticity at room temperature and can be plasticized like plastic at high temperature. Elastomer plastic particles are usually small granular substances made from elastomer materials through a specific processing technology. When processing plastic granule raw materials, a pelletizer is needed to cut the plastic extrudate into granules.

[0003] At present, when a pelletizer is used, it is usually necessary to extrude the molten plastic. After the molten plastic is extruded through the hole, it will form strips. At this time, the blade inside the pelletizer can cut it off in time to form elastomeric plastic particles. However, in the process of cutting the molten plastic by the pelletizer, the high-temperature plastic particles are not cooled in time and are easy to adhere to the cutter, and even stick to each other, resulting in unqualified quality of the processed elastomeric plastic particles. Therefore, in response to the above problems, we propose a new underwater hot pelletizer for processing elastomeric plastic particles. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that, in the process of cutting molten plastic by a pelletizer, high-temperature plastic particles are not cooled in time and are easily adhered to the cutter, and even stick to each other, resulting in unqualified quality of processed elastomer plastic particles, and proposes an underwater hot pelletizer for processing elastomer plastic particles.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an underwater hot pelletizer for processing elastomeric plastic particles, comprising a feed pipe, the right end of the feed pipe is fixedly connected to an extrusion plate, the right surface of the extrusion plate is fixedly connected to a connecting shell, the right end of the connecting shell is fixedly connected to a discharge pipe, the outer surface of the discharge pipe is provided with a drainage hole near the bottom left side, the bottom of the discharge pipe is fixedly connected to a water tank near the outside, a water pump is installed on the front surface of the water tank near the bottom, the output end of the water pump is fixedly connected to a water pipe, the other end of the water pipe is fixedly connected to a four-way pipe, multiple output ends of the four-way pipe are fixedly connected to water supply pipes, and the other ends of the water supply pipes are fixedly connected to the connecting shell.

[0006] Preferably, a rotating shaft is rotatably connected between the inner surface walls of the feed pipe and the discharge pipe, a first auger blade is fixedly connected to the outer surface of the rotating shaft near the left side, a ring frame is fixedly connected to the outer surface of the rotating shaft near the middle, and a second auger blade is fixedly connected to the outer surface of the rotating shaft near the right side.

[0007] Preferably, the first auger blade is located inside the feed pipe, the top of the feed pipe near the left side is fixedly connected to a feed pipe, the second auger blade is located inside the discharge pipe near the left side, and the drainage hole is located below the second auger blade.

[0008] Preferably, the annular frame is located inside the communicating shell, and the outer surface of the annular frame is not in contact with the inner surface wall of the communicating shell.

[0009] Preferably, the outer surface of the extrusion plate is annularly distributed with a plurality of extrusion holes near the edge, the left surface of the annular frame is fixedly connected with a plurality of groups of cutters, and the cutting edges of the cutters are slidably fitted with the right surface of the extrusion plate.

[0010] Preferably, a motor is fixedly mounted on the left end of the feed conveying pipe, the output end of the motor rotates through the left end of the feed conveying pipe and extends to the right side, and the output end of the motor is fixedly connected to the left end of the rotating shaft.

[0011] Preferably, a drain pipe is fixedly connected to a position near the middle of the bottom on the front surface of the water tank, and a valve is installed on the outside of the drain pipe.

[0012] Preferably, a water injection pipe is fixedly connected to a position near the top of the front surface of the water tank, and a sealing cover is threadedly connected to the front end of the water injection pipe.

[0013] Preferably, a plurality of water-blocking ribs are fixedly connected to the inner surface wall of the discharge pipe, and the water-blocking ribs are located on the right side of the drainage hole.

[0014] Preferably, the bottom of the discharge pipe is fixedly connected to a discharge channel, and the discharge channel is located on the right side of the water-blocking rib. The outer surfaces of the feed pipe and the discharge pipe are fixedly connected to multiple groups of support columns, and a bottom plate is fixedly connected between the bottom ends of the multiple groups of support columns.

[0015] Compared with the prior art, the advantages and positive effects of the utility model are:

[0016] 1. In the utility model, the motor and the rotating shaft cooperate to drive the first auger blade, the annular frame and the second auger blade to rotate. When the first auger blade rotates, the molten plastic will be transported to the right and cooperate with the extrusion holes on the surface of the extrusion plate to form strips of the molten plastic, and the annular frame cooperates with the cutter to cut the strip plastic into plastic particles. During the process, the water pump cooperates with the water pipe, the four-way pipe and the water supply pipe to spray the cooling water in the water tank from the top and the front and back sides of the connecting shell. The extruded plastic strips will quickly cool and form after contacting the cooling water, so that the plastic particles formed after cutting will not adhere to the surface of the cutter or even stick to each other, which greatly improves the quality of the processed elastomer plastic particles.

[0017] 2. In the utility model, the cooling water and the cut plastic particles discharged into the connecting shell will move to the right under the action of gravity. When reaching the second auger blade area, the rotating second auger blade will continue to transport the mixture of cooling water and plastic particles to the right. When the mixture passes through the drainage hole, the cooling water will fall back into the water tank below through the drainage hole, so that the cooling water can be recycled, which saves resources and reduces the processing cost of the elastomer plastic particles.

[0018] 3. In the utility model, when the mixture of plastic particles and cooling water passes through the drainage hole, the cooling water is discharged, and the remaining cooling water will be blocked after reaching the position of the water-blocking rib, so it cannot flow back into the water tank through the drainage hole, thereby ensuring the utilization rate of the cooling water. The plastic particles will continue to move to the right under the transportation of the second auger blade, and finally be discharged through the discharge channel. The overall structure is simple, which facilitates the subsequent collection operation and has high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of an underwater hot pelletizer for processing elastomeric plastic pellets is provided for the utility model;

[0020] Figure 2 A cross-sectional view of an underwater hot pelletizer for processing elastomeric plastic pellets is provided for the utility model;

[0021] Figure 3 This utility model proposes a partial structural cross-sectional view of an underwater hot pelletizer for processing elastomer plastic particles;

[0022] Figure 4 The utility model provides a cross-sectional view of a discharge pipe of an underwater hot pelletizer for processing elastomeric plastic particles;

[0023] Figure 5 The utility model provides a schematic diagram of the rotating shaft structure of an underwater hot pelletizer for processing elastomer plastic particles;

[0024] Figure 6 The utility model provides a schematic diagram of the extrusion plate structure of an underwater hot pelletizer for processing elastomer plastic particles.

[0025] Legend: 1. Motor; 11. Rotating shaft; 12. First auger blade; 13. Ring frame; 14. Cutter; 15. Second auger blade; 2. Water tank; 21. Water filling pipe; 22. Sealing cover; 23. Drain pipe; 24. Valve; 25. Water pump; 26. Water pipe; 27. Cross-way pipe; 28. Water supply pipe; 3. Connecting shell; 4. Bottom plate; 41. Support column; 5. Feed pipe; 51. Feed pipe; 52. Extrusion plate; 53. Extrusion hole; 6. Discharge pipe; 61. Water-blocking rib; 62. Discharge channel; 63. Drain hole. DETAILED DESCRIPTION

[0026] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0028] Example 1: Figure 1-Figure 6 As shown, the utility model provides an underwater hot pelletizer for processing elastomer plastic particles, including a feed pipe 5, the right end of the feed pipe 5 is fixedly connected to an extrusion plate 52, the right surface of the extrusion plate 52 is fixedly connected to a connecting shell 3, the right end of the connecting shell 3 is fixedly connected to a discharge pipe 6, the outer surface of the discharge pipe 6 is provided with a drainage hole 63 near the bottom left side, the bottom of the discharge pipe 6 is fixedly connected to a water tank 2 near the outside, the front surface of the water tank 2 is installed near the bottom of a water pump 25, and the output end of the water pump 25 is fixedly connected to The water delivery pipe 26, the other end of the water delivery pipe 26 is fixedly connected to a cross-tube 27, multiple output ends of the cross-tube 27 are fixedly connected to a water supply pipe 28, the other end of the water supply pipe 28 is fixedly connected to the connecting shell 3, the inner surface wall of the feed pipe 5 and the discharge pipe 6 is rotatably connected to a rotating shaft 11, the outer surface of the rotating shaft 11 is fixedly connected to a first auger blade 12 near the left side, the outer surface of the rotating shaft 11 is fixedly connected to a ring frame 13 near the middle, and the outer surface of the rotating shaft 11 is fixedly connected to a second The auger blade 15, the first auger blade 12 is located inside the feed pipe 5, the top of the feed pipe 5 is fixedly connected to the feed pipe 51 near the left side, the second auger blade 15 is located inside the discharge pipe 6 near the left side, the drainage hole 63 is located below the second auger blade 15, the annular frame 13 is located inside the connecting shell 3 and the outer surface of the annular frame 13 is not in contact with the inner surface wall of the connecting shell 3, the outer surface of the extrusion plate 52 is annularly distributed with a plurality of extrusion holes 53 near the edge, and the left surface of the annular frame 13 is fixedly connected with a plurality of groups of The cutter 14, the blade of the cutter 14 and the right surface of the extrusion plate 52 are slidably fitted, the left end of the feed pipe 5 is fixedly installed with a motor 1, the output end of the motor 1 rotates through the left end of the feed pipe 5 and extends to the right side, the output end of the motor 1 and the left end of the rotating shaft 11 are fixedly connected, the front surface of the water tank 2 is fixedly connected with a drain pipe 23 near the middle of the bottom, a valve 24 is installed on the outside of the drain pipe 23, the front surface of the water tank 2 is fixedly connected with a water injection pipe 21 near the top, and the front end of the water injection pipe 21 is threadedly connected with a sealing cover 22.

[0029] The effect achieved by the entire embodiment 1 is that when in use, the melted elastic plastic granule raw material is fed into the inside of the feed pipe 5 through the feed pipe 51. The plastic granule raw material can be selected from natural rubber, styrene-butadiene rubber, butadiene rubber, ethylene-propylene rubber, silicone rubber, polyurethane and other materials according to needs. Then, the motor 1 is started to drive the rotating shaft 11 to rotate. At this time, the first auger blade 12, the annular frame 13 and the second auger blade 15 on the surface of the rotating shaft 11 will rotate synchronously. When the first auger blade 12 rotates, the melted plastic will be transported to the right. When the melted plastic When the plastic passes through the extrusion plate 52, it will pass through the extrusion hole 53 under the action of the extrusion force and form strips. During the rotation of the annular frame 13, the cutter 14 will be driven to rotate continuously in contact with the right side of the extrusion plate 52, thereby cutting the basic strip plastic into plastic particles. In this process, the water pump 25 will pump out the cooling water in the water tank 2 and send it to the three-way water supply pipe 28 through the water pipe 26 and the four-way pipe 27. Then the cooling water will be sprayed into the interior of the connecting shell 3 from the top and front and rear sides of the connecting shell 3. The extruded plastic strips are in contact with the cooling water. After that, it will be quickly cooled and formed, so that the plastic particles formed after cutting will not adhere to the surface of the cutter 14 or even stick to each other, which greatly improves the quality of the processed elastomeric plastic particles, and the cooling water and the cut plastic particles discharged into the connecting shell 3 will move to the right under the action of gravity. When reaching the second auger blade 15 area, the rotating second auger blade 15 will continue to transport the mixture of cooling water and plastic particles to the right. When the mixture passes through the position of the drain hole 63, the cooling water will fall back into the water tank 2 below through the drain hole 63, so that the cooling water can be recycled, saving resources and reducing the processing cost of the elastomeric plastic particles. The water tank 2 is made of metal copper, which has a good heat dissipation effect, and the surface is provided with tiny textures for the contact area between the contact surface and the air to ensure the cooling water temperature inside the water tank 2. The water injection pipe 21 is mainly used to add cooling water to the water tank 2, and the sealing cover 22 is used to seal the water injection pipe 21. The drain pipe 23 is mainly used to discharge and replace the cooling water inside the water tank 2, and the valve 24 is mainly used to open and close the drain pipe 23.

[0030] Example 2: Figure 1-Figure 6 As shown, the inner surface wall of the discharge pipe 6 is fixedly connected with a plurality of water-blocking ribs 61, which are located on the right side of the drainage hole 63. The bottom of the discharge pipe 6 is fixedly connected with a discharge channel 62, which is located on the right side of the water-blocking ribs 61. The outer surfaces of the feed pipe 5 and the discharge pipe 6 are fixedly connected with a plurality of groups of support columns 41, and a bottom plate 4 is fixedly connected between the bottom ends of the plurality of groups of support columns 41.

[0031] The effect achieved by the entire embodiment 2 is that when the mixture of plastic particles and cooling water passes through the drainage hole 63, the cooling water is discharged, and the remaining cooling water will be blocked after reaching the position of the water-blocking rib 61, so it cannot finally flow back into the water tank 2 through the drainage hole 63, thereby ensuring the utilization rate of the cooling water, and the plastic particles will continue to move to the right under the transportation of the second auger blade 15, and finally be discharged through the discharge channel 62. The overall structure is simple, which facilitates subsequent collection operations and has high practicality. The bottom plate 4 and the support column 41 cooperate to support the device.

[0032] Working principle: When in use, the melted elastomeric plastic granule raw material is fed into the feed pipe 5 through the feed pipe 51, and then the motor 1 is started to drive the rotating shaft 11 to rotate. At this time, the first auger blade 12, the annular frame 13 and the second auger blade 15 on the surface of the rotating shaft 11 will rotate synchronously. When the first auger blade 12 rotates, the melted plastic will be transported to the right. When the melted plastic passes through the extrusion plate 52, it will pass through the extrusion hole 53 under the action of the extrusion force and form a strip. During the rotation of the annular frame 13, the cutter 14 will be driven to rotate continuously in contact with the right side of the extrusion plate 52, thereby cutting the basic strip plastic to form plastic particles. In this process, the water pump 25 will draw out the cooling water in the water tank 2 and feed it into the three-way water supply pipe 28 through the water pipe 26 and the four-way pipe 27. Then the cooling water will be sprayed into the interior of the connecting shell 3 from the top and front and rear sides of the connecting shell 3. The extruded plastic strip will be quickly cooled and formed after contacting the cooling water, so that the plastic particles formed after cutting will not adhere to the surface of the cutter 14 Even the problem of mutual adhesion is solved, which greatly improves the quality of the processed elastomeric plastic particles, and the cooling water and the cut plastic particles discharged into the connecting shell 3 will move to the right under the action of gravity. When reaching the second auger blade 15 area, the rotating second auger blade 15 will continue to transport the cooling water and plastic particle mixture to the right. When the mixture passes through the drainage hole 63, the cooling water will fall back into the water tank 2 below through the drainage hole 63, so that the cooling water can be recycled, saving resources and reducing the processing cost of the elastomeric plastic particles. In addition, when the plastic particles and the cooling water mixture pass through the drainage hole 63, the cooling water is discharged, and the remaining cooling water will be blocked after reaching the position of the water-blocking rib 61, so it cannot finally flow back to the water tank 2 through the drainage hole 63, ensuring the utilization rate of the cooling water. The plastic particles will continue to move to the right under the transportation of the second auger blade 15, and finally be discharged through the discharge channel 62. The overall structure is simple, which is convenient for subsequent collection operations and has high practicality.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An underwater hot pelletizer for processing elastomeric plastic pellets, comprising a feed pipe (5), characterized in that: The right end of the feed pipe (5) is fixedly connected to an extrusion plate (52), the right surface of the extrusion plate (52) is fixedly connected to a connecting shell (3), the right end of the connecting shell (3) is fixedly connected to a discharge pipe (6), the outer surface of the discharge pipe (6) is provided with a drainage hole (63) near the bottom left side, the bottom of the discharge pipe (6) is fixedly connected to a water tank (2) near the outside, the front surface of the water tank (2) is installed with a water pump (25) near the bottom, the output end of the water pump (25) is fixedly connected to a water pipe (26), the other end of the water pipe (26) is fixedly connected to a four-way pipe (27), multiple output ends of the four-way pipe (27) are fixedly connected to water supply pipes (28), and the other ends of the water supply pipes (28) are fixedly connected to the connecting shell (3).

2. The underwater hot pelletizer for processing elastomer plastic particles according to claim 1, characterized in that: A rotating shaft (11) is rotatably connected between the inner surface walls of the feed pipe (5) and the discharge pipe (6); a first auger blade (12) is fixedly connected to the outer surface of the rotating shaft (11) near the left side; a ring frame (13) is fixedly connected to the outer surface of the rotating shaft (11) near the middle; and a second auger blade (15) is fixedly connected to the outer surface of the rotating shaft (11) near the right side.

3. The underwater hot pelletizer for processing elastomeric plastic particles according to claim 2, characterized in that: The first auger blade (12) is located inside the feed pipe (5), and a feed pipe (51) is fixedly connected to the top of the feed pipe (5) near the left side. The second auger blade (15) is located inside the discharge pipe (6) near the left side, and the drainage hole (63) is located below the second auger blade (15).

4. The underwater hot pelletizer for processing elastomeric plastic particles according to claim 3, characterized in that: The annular frame (13) is located inside the communicating shell (3), and the outer surface of the annular frame (13) and the inner surface wall of the communicating shell (3) are in a non-contact state.

5. The underwater hot pelletizer for processing elastomeric plastic particles according to claim 4, characterized in that: The outer surface of the extrusion plate (52) is provided with a plurality of extrusion holes (53) distributed in an annular pattern near the edge, and the left surface of the annular frame (13) is fixedly connected with a plurality of groups of cutters (14), and the cutting edges of the cutters (14) are slidably fitted to the right surface of the extrusion plate (52).

6. The underwater hot pelletizer for processing elastomeric plastic particles according to claim 5, characterized in that: A motor (1) is fixedly mounted on the left end of the conveying pipe (5); the output end of the motor (1) rotates through the left end of the conveying pipe (5) and extends to the right side; the output end of the motor (1) is fixedly connected to the left end of the rotating shaft (11).

7. The underwater hot pelletizer for processing elastomeric plastic particles according to claim 6, characterized in that: A drainage pipe (23) is fixedly connected to a position near the middle of the bottom of the front surface of the water tank (2), and a valve (24) is installed outside the drainage pipe (23).

8. The underwater hot pelletizer for processing elastomeric plastic particles according to claim 7, characterized in that: A water injection pipe (21) is fixedly connected to a position near the top of the front surface of the water tank (2), and a sealing cover (22) is threadedly connected to the front end of the water injection pipe (21).

9. The underwater hot pelletizer for processing elastomeric plastic particles according to claim 8, characterized in that: A plurality of water-blocking ribs (61) are fixedly connected to the inner surface wall of the discharge pipe (6), and the water-blocking ribs (61) are located on the right side of the drainage hole (63).

10. The underwater hot pelletizer for processing elastomeric plastic particles according to claim 9, characterized in that: The bottom of the discharge pipe (6) is fixedly connected to a discharge channel (62), and the discharge channel (62) is located on the right side of the water-blocking rib (61). The outer surfaces of the feed pipe (5) and the discharge pipe (6) are fixedly connected to multiple groups of support columns (41), and the bottom ends of the multiple groups of support columns (41) are fixedly connected to a bottom plate (4).

Images