Continuous mixing thermoplastic elastomer granulating device

Abstract

The utility model discloses a continuous mixing thermoplastic elastomer granulating device, and relates to the technical field of high polymer material processing. According to the continuous-mixing thermoplastic elastomer granulating device, the spray head can reciprocate along the sliding groove under the linkage of the rotating disc and the adjusting rod, the granulating efficiency and quality are improved, in the granulating process, the blade rotating at a high speed cuts off a strip-shaped melt, meanwhile, the spray head continuously sprays cooling water flow, and due to the fact that the spray head can reciprocate, the cooling water flow can be continuously cooled. Water flow can comprehensively and uniformly cover the blade and a granulation area, cooling forming of particles is accelerated, on one hand, the particle adhesion phenomenon caused by insufficient local cooling is avoided, defective products are reduced, on the other hand, materials on the surface of the blade are timely flushed through the spray head, the materials are prevented from being left and accumulated, the sharpness and cutting accuracy of the blade are maintained, and the production efficiency is improved. The continuity and the stability of granulation are ensured, so that the double improvement of the productivity and the product quality is realized.

Description

Technical Field

[0001] This utility model relates to the field of polymer material processing technology, specifically to a continuous mixing thermoplastic elastomer granulation device. Background Technology

[0002] Thermoplastic elastomers (TPEs) combine the properties of rubber and thermoplastics, finding wide application in numerous fields such as automotive, electronics, medical, and consumer goods. Due to their reproducible molding process, they can reduce production costs. With the increasing demand for high-performance materials across industries, the TPE market continues to expand. Granulation, as a crucial step in TPE production, directly determines product quality and production efficiency. However, in existing continuous mixing TPE granulation equipment, the cutting blades easily become dull due to material residue during the granulation process, leading to decreased cutting accuracy, inconsistent particle size, and a significant increase in the defect rate. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a continuous mixing thermoplastic elastomer granulation device to solve the problems mentioned in the background section.

[0004] In existing continuous mixing thermoplastic elastomer granulation equipment, the cutting blades are prone to dulling due to material residue during the granulation process, resulting in decreased cutting accuracy, inconsistent particle size, and a significant increase in the defect rate.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A continuous mixing thermoplastic elastomer granulation device includes a base and an extruder body. The extruder body is mounted on the top of the base. A connecting box is fixedly connected to one end of the extruder body. A rotating shaft is rotatably connected inside the connecting box. Multiple blades are fixedly connected to the outside of the rotating shaft. A first fixed plate and a second fixed plate are fixedly connected inside the connecting box. A groove penetrating the surface of the first fixed plate is formed on one side. A movable plate is slidably connected inside the groove. A nozzle is fixedly connected to one side of the movable plate through the groove. A screening box is fixedly connected to the bottom of the connecting box via a connecting cylinder. A filter plate is fixedly connected inside the screening box. A cooler and a water pump are fixedly connected to the top of the screening box. One end of the water pump is fixedly connected to the cooler. The end of the water pump away from the cooler is fixedly connected to the inside of the screening box via a third connecting pipe. A first connecting pipe is fixedly connected to the end of the connecting box away from the extruder body. A second connecting pipe is fixedly connected between the first connecting pipe and the cooler. The nozzle is fixedly connected to the first connecting pipe via a flexible hose.

[0007] Preferably, a turntable is rotatably connected to the side of the first fixed plate away from the nozzle, and a rotating cylinder is fixedly connected to the side of the turntable away from the first fixed plate.

[0008] Preferably, a driven gear is fixedly connected to the outer side of the rotating drum.

[0009] Preferably, a drive gear is rotatably connected to one side of the second fixed plate, and one side of the drive gear is meshed with a driven gear.

[0010] Preferably, a servo motor is fixedly connected to the end of the second fixed plate away from the drive gear, and the output end of the servo motor passes through one side of the second fixed plate and is fixedly connected to the center of one side of the drive gear.

[0011] Preferably, an adjusting rod is rotatably connected to one side of the turntable, and the end of the adjusting rod away from the turntable is rotatably connected to the moving plate.

[0012] Preferably, a drive motor is fixedly connected to one side of the connecting box via a fixing frame, and one end of the rotating shaft passes through one side of the fixing frame and is fixedly connected to the output end of the drive motor.

[0013] Preferably, a baffle is hinged to one side of the screening box.

[0014] This invention provides a continuous mixing and granulation apparatus for thermoplastic elastomers. Compared with the prior art, it has the following advantages:

[0015] 1. This continuous mixing thermoplastic elastomer granulation device features a nozzle that can reciprocate along a chute under the linkage of a turntable and an adjusting rod, improving granulation efficiency and quality. During granulation, high-speed rotating blades cut the strip-shaped melt, while the nozzle continuously sprays cooling water. Because the nozzle can reciprocate, the water flow can comprehensively and evenly cover the blades and granulation area, accelerating the cooling and forming of the granules. On the one hand, this avoids granule adhesion caused by insufficient local cooling, reducing the production of defective products. On the other hand, the timely rinsing of the blade surface by the nozzle prevents material residue accumulation, maintains the sharpness and cutting accuracy of the blades, and ensures the continuity and stability of granulation, thereby achieving a dual improvement in production capacity and product quality.

[0016] 2. In this continuous mixing thermoplastic elastomer granulation device, a water pump draws water from the screening box into a chiller for cooling. The cooled water is then transported to the nozzles via a second and first connecting pipe to cool the granulation process. The cooled water falls into the screening box along with the granules, is separated by a filter plate, and can be pumped back for recycling. This significantly reduces water consumption and lowers production costs. Simultaneously, the stable cooling water flow ensures a constant temperature during the granulation process, helping to maintain the physical properties of the thermoplastic elastomer and further improving product quality stability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the internal structure of the present invention. Figure 1 .

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0020] Figure 4 This is a schematic diagram of the internal structure of the present invention. Figure 2 .

[0021] Figure 5 This is an exploded view of the present invention.

[0022] Figure 6 This is an enlarged structural diagram of part A in this utility model.

[0023] In the diagram: 1. Base; 2. Extruder body; 3. Connecting box; 4. Fixing frame; 5. Drive motor; 6. Screening box; 7. First connecting pipe; 8. Second connecting pipe; 9. Cooler; 10. Water pump; 11. Third connecting pipe; 12. Baffle; 13. Rotating shaft; 14. Blade; 15. First fixing plate; 16. Second fixing plate; 17. Nozzle; 18. Moving plate; 19. Adjusting rod; 20. Slide groove; 21. Turntable; 22. Rotary drum; 23. Driven gear; 24. Drive gear; 25. Servo motor; 26. Filter plate; 27. Hose. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-6This utility model provides a technical solution: a continuous mixing thermoplastic elastomer granulation device, including a base 1 and an extruder body 2. The extruder body 2 is installed on the top of the base 1. A connecting box 3 is fixedly connected to one end of the extruder body 2. A rotating shaft 13 is rotatably connected inside the connecting box 3. Multiple blades 14 are fixedly connected to the outside of the rotating shaft 13. The rotation of the rotating shaft 13 causes the blades 14 to rotate, cutting the strip-shaped melt into cylindrical particles. A first fixing plate 15 and a second fixing plate 16 are fixedly connected inside the connecting box 3. The interiors of the first fixing plate 15 and the second fixing plate 16 are not connected to the rotating shaft 13. A groove 20 penetrating the surface of the first fixing plate 15 is opened on one side. A moving plate 18 is slidably connected inside the groove 20. The moving plate 18 moves along the groove 20. A nozzle 17 is fixedly connected to one side of the moving plate 18 through the groove 20. The movement of the moving plate 18 causes the nozzle 17 to move back and forth, adjusting the blades. The surface of sheet 14 is rinsed. The bottom of the connecting box 3 is fixedly connected to the screening box 6 via a connecting cylinder. The inside of the screening box 6 is fixedly connected to the filter plate 26 to separate water and thermoplastic elastomer particles. The top of the screening box 6 is fixedly connected to the cooler 9 and the water pump 10. One end of the water pump 10 is fixedly connected to the cooler 9. The water pump 10 draws water into the cooler 9 for cooling. The end of the water pump 10 away from the cooler 9 is fixedly connected to the inside of the screening box 6 via a third connecting pipe 11. After the water pump 10 is turned on, it draws water from the screening box 6 through the third connecting pipe 11. The end of the connecting box 3 away from the extruder body 2 is fixedly connected to the first connecting pipe 7. The first connecting pipe 7 is fixedly connected to the cooler 9 via a second connecting pipe 8. The water cooled by the cooler 9 enters the first connecting pipe 7 through the second connecting pipe 8. The nozzle 17 is fixedly connected to the first connecting pipe 7 via a hose 27. The water in the first connecting pipe 7 enters the nozzle 17 through the hose 27.

[0026] Furthermore, a turntable 21 is rotatably connected to the side of the first fixed plate 15 away from the nozzle 17, and a rotating cylinder 22 is fixedly connected to the side of the turntable 21 away from the first fixed plate 15. The rotating cylinder 22 rotates, causing the turntable 21 to rotate.

[0027] Furthermore, a driven gear 23 is fixedly connected to the outer side of the rotating drum 22, and the rotation of the driven gear 23 causes the rotating drum 22 to rotate.

[0028] Furthermore, a drive gear 24 is rotatably connected to one side of the second fixed plate 16, and one side of the drive gear 24 is meshed with the driven gear 23. The drive gear 24 rotates, causing the driven gear 23 to rotate.

[0029] Furthermore, a servo motor 25 is fixedly connected to one end of the second fixed plate 16 away from the drive gear 24. The output end of the servo motor 25 passes through one side of the second fixed plate 16 and is fixedly connected to the center of one side of the drive gear 24. When the servo motor 25 is turned on, it drives the drive gear 24 to rotate.

[0030] Furthermore, an adjusting rod 19 is rotatably connected to one side of the turntable 21. The rotation of the turntable 21 causes the adjusting rod 19 to rotate. The end of the adjusting rod 19 away from the turntable 21 is rotatably connected to the moving plate 18. The rotation of the adjusting rod 19 causes the moving plate 18 to move.

[0031] Furthermore, a drive motor 5 is fixedly connected to one side of the connecting box 3 via a fixing bracket 4, and one end of the rotating shaft 13 passes through one side of the fixing bracket 4 and is fixedly connected to the output end of the drive motor 5. When the drive motor 5 is turned on, it rotates the rotating shaft 13.

[0032] Furthermore, a baffle 12 is hinged to one side of the screening box 6 to better remove the thermoplastic elastomer particles inside the screening box 6.

[0033] In use, water is poured into the screening box 6, and the extruder body 2, drive motor 5, servo motor 25, cooler 9, and water pump 10 are turned on. After the drive motor 5 is turned on, it drives the rotating shaft 13 to rotate, which in turn drives the blades 14 to rotate. The extruder body 2 extrudes the mixed melt, and the rotating blades 14 cut the strip-shaped melt into cylindrical particles. The water pump 10 pumps the water from the screening box 6 to the cooler 9, which cools the water. The cooled water then enters the nozzle 17 through the second connecting pipe 8, the first connecting pipe 7, and the hose 27. The servo motor 25 drives the driven gear 23 to rotate via the drive gear 24. The moving gear 23 rotates via the turntable 21 through the drive gear 22. The turntable 21 moves the moving plate 18 inside the slide groove 20 via the adjusting rod 19. The moving plate 18 moves the nozzle 17, which moves back and forth to wash the surface of the blade 14, preventing the thermoplastic elastomer particles from sticking to the surface of the blade 14 and affecting the subsequent cutting effect. At the same time, it cools the cut melt to prevent the cut melt from sticking together. The cut thermoplastic elastomer enters the screening box 6, where the filter plate 26 separates the thermoplastic elastomer particles and water. The water enters the bottom of the screening box 6 for continued use, thus conserving water resources.

[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] 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. A continuous mixing thermoplastic elastomer granulation device, comprising a base (1) and an extruder body (2), characterized in that: The base (1) is topped with an extruder body (2). One end of the extruder body (2) is fixedly connected to a connecting box (3). A rotating shaft (13) is rotatably connected inside the connecting box (3). Multiple blades (14) are fixedly connected to the outside of the rotating shaft (13). A first fixing plate (15) and a second fixing plate (16) are fixedly connected inside the connecting box (3). A groove (20) penetrating the surface of the first fixing plate (15) is provided on one side. A moving plate (18) is slidably connected inside the groove (20). A nozzle (17) is fixedly connected to one side of the moving plate (18) through the groove (20). The bottom of the connecting box (3) is connected to a connecting plate. A screening box (6) is fixedly connected to the cylinder. A filter plate (26) is fixedly connected inside the screening box (6). A cooler (9) and a water pump (10) are fixedly connected to the top of the screening box (6). One end of the water pump (10) is fixedly connected to the cooler (9). The end of the water pump (10) away from the cooler (9) is fixedly connected to the inside of the screening box (6) through a third connecting pipe (11). The end of the connecting box (3) away from the extruder body (2) is fixedly connected to a first connecting pipe (7). A second connecting pipe (8) is fixedly connected between the first connecting pipe (7) and the cooler (9). The nozzle (17) is fixedly connected to the first connecting pipe (7) through a hose (27).

2. The continuous mixing thermoplastic elastomer granulation apparatus according to claim 1, characterized in that: A turntable (21) is rotatably connected to the side of the first fixed plate (15) away from the nozzle (17), and a rotating cylinder (22) is fixedly connected to the side of the turntable (21) away from the first fixed plate (15).

3. The continuous mixing thermoplastic elastomer granulation apparatus according to claim 2, characterized in that: A driven gear (23) is fixedly connected to the outer side of the rotating drum (22).

4. The continuous mixing thermoplastic elastomer granulation apparatus according to claim 3, characterized in that: One side of the second fixed plate (16) is rotatably connected to a drive gear (24), and one side of the drive gear (24) is meshed with a driven gear (23).

5. The continuous mixing thermoplastic elastomer granulation apparatus according to claim 4, characterized in that: A servo motor (25) is fixedly connected to one end of the second fixed plate (16) away from the drive gear (24). The output end of the servo motor (25) passes through one side of the second fixed plate (16) and is fixedly connected to the center of one side of the drive gear (24).

6. The continuous mixing thermoplastic elastomer granulation apparatus according to claim 2, characterized in that: An adjusting rod (19) is rotatably connected to one side of the turntable (21), and the end of the adjusting rod (19) away from the turntable (21) is rotatably connected to the moving plate (18).

7. The continuous mixing thermoplastic elastomer granulation apparatus according to claim 1, characterized in that: One side of the connecting box (3) is fixedly connected to a drive motor (5) via a fixing frame (4), and one end of the rotating shaft (13) passes through one side of the fixing frame (4) and is fixedly connected to the output end of the drive motor (5).

8. The continuous mixing thermoplastic elastomer granulation apparatus according to claim 1, characterized in that: A baffle (12) is hinged to one side of the screening box (6).

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