Extruder for granulating TPV (thermoplastic vulcanizate) elastomer

Abstract

The utility model relates to an extruder for TPV (thermoplastic vulcanizate) elastomer granulation, which comprises an extruder shell, a feeding barrel is arranged on the extruder shell, a feeding port is arranged on the feeding barrel, a feeding port is arranged at the bottom of the feeding barrel, the feeding port is communicated with the extruder shell, and the feeding port is communicated with the extruder shell. The feeding barrel is provided with a power assembly for stirring the feeding barrel, the power assembly is provided with a blocking piece for sealing the feeding port, and the feeding barrel is provided with a driving assembly for driving the blocking piece to intermittently open the feeding port; compared with the prior art, the feeding barrel has the advantages that the power assembly is arranged in the feeding barrel, materials are pre-stirred, it is guaranteed that the materials are fully mixed before entering the extruder body, shutdown adjustment or waste generation caused by uneven mixing of the materials in the extrusion process is avoided, and therefore the overall production efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model belongs to an extruder, in particular to an extruder used for granulating TPV elastomers. Background Art

[0002] As a unique material, thermoplastic vulcanizate (TPV) is widely used in various fields such as automotive manufacturing, construction, home appliances, electronics, and medical devices due to its excellent heat resistance, weather resistance, mechanical properties, chemical stability, and good flexibility and elasticity. To more effectively utilize the performance characteristics of TPV elastomers and achieve efficient use in the production process, TPV elastomer pelletizing technology has emerged.

[0003] Currently, there are various devices on the market for granulating TPV elastomers, such as the TPV extruder disclosed in Chinese Patent Publication No. CN210525776U. This extruder utilizes a first and second discharge port to extrude plastic pellets of varying diameters and thicknesses, while a sliding cutter can be used to cut pellets of varying sizes and lengths. However, this extruder often suffers from uneven mixing of materials, resulting in low pelletizing efficiency and impacting overall production efficiency. Utility Model Content

[0004] In order to improve the problem of uneven material mixing, the utility model provides an extruder for TPV elastomer granulation. The specific technical solution is as follows:

[0005] An extruder for TPV elastomer granulation includes an extruder housing, a feeding bucket is provided on the extruder housing, a feeding port is provided on the feeding bucket, a feed port is provided at the bottom of the feeding bucket, the feed port is connected to the extruder housing, a power component for stirring the feeding bucket is provided on the feeding bucket, a sealing member for sealing the feed port is provided on the power component, and a drive component for driving the sealing member to intermittently open the feed port is provided on the feeding bucket.

[0006] The material is injected into the feeding bucket from the feeding port, and the power component is used to stir the material. After stirring evenly, the driving component is used to open the sealing piece and open the feeding port. The material can then be put into the extruder housing. The pre-stirring is performed in advance to avoid the possibility of uneven stirring of the material.

[0007] In a specific possible implementation scheme, the power assembly includes a power motor arranged on a feeding bucket, a driving gear is coaxially provided on the motor shaft of the power motor, a stirring rod is provided on the feeding bucket, a driven gear is coaxially provided on the stirring rod, the driven gear and the driving gear are meshed, and a plurality of stirring blades are provided on the stirring rod.

[0008] In a specific embodiment, the blocking member includes a blocking plug disposed at the bottom of the stirring rod.

[0009] In a specific embodiment, a guide slope is provided on a side of the sealing plug close to the stirring rod.

[0010] The material falls on the surface of the sealing plug and can fall along the guide slope to avoid residual material remaining on the sealing plug.

[0011] In a specific embodiment, the end of the stirring rod extending out of the feeding bucket is provided with a plurality of gear rings, and the plurality of gear rings are evenly distributed along the axial direction of the stirring rod. A sliding groove is provided on the side wall of the stirring rod, and a sliding bar sliding in the sliding groove is provided on the driven gear.

[0012] The driving assembly includes a driving motor arranged on the feeding bucket, a motor shaft of the driving motor is coaxially provided with a driving gear, and the driving gear is meshed with a gear ring.

[0013] Beneficial technical effects of this utility model:

[0014] 1. By installing a power component in the feeding barrel, the material is pre-mixed to ensure that the material is fully mixed before entering the extruder body. This design fundamentally solves the problem of uneven material mixing, effectively improves granulation efficiency, and ensures the consistency of the final product quality;

[0015] 2. Since the material has been fully stirred before entering the extruder, it avoids the need for shutdown adjustments or waste caused by uneven material mixing during the extrusion process, thereby significantly improving the overall production efficiency;

[0016] 3. By optimizing the material mixing process, energy waste and raw material loss caused by uneven mixing are reduced, thus lowering production costs. At the same time, due to the improvement of production efficiency, energy consumption and manufacturing costs per unit product are also indirectly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an extruder for TPV elastomer granulation according to an embodiment of the present utility model.

[0018] Figure 2 It is a cross-sectional view showing the internal structure of the feeding barrel.

[0019] Explanation of the accompanying symbols: 1. Extruder housing; 2. Feeding bucket; 3. Cover plate; 4. Feeding port; 5. Feeding port; 6. Power assembly; 7. Sealing piece; 8. Drive assembly; 9. Power motor; 10. Driving gear; 11. Stirring rod; 12. Driven gear; 13. Stirring blade; 14. Gear ring; 15. Sliding bar; 16. Sliding groove; 17. Bracket; 18. Drive motor; 19. Drive gear; 20. Sealing plug; 21. Guide slope. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-2 The utility model is described in further detail.

[0021] Reference Figure 1 and Figure 2 An extruder for TPV elastomer granulation includes an extruder housing 1, a feeding bucket 2 is provided on the extruder housing 1, the feeding bucket 2 is a conical bucket, a cover plate 3 is provided on the top of the feeding bucket 2, a feeding port 4 is provided on the cover plate 3, a feed port 5 is provided at the bottom of the feeding bucket 2, and the feed port 5 is connected to the extruder housing 1, a power component 6 for stirring the feeding bucket 2 is provided on the feeding bucket 2, a sealing member 7 for sealing the feed port 5 is provided on the power component 6, and a driving component 8 for driving the sealing member 7 to intermittently open the feed port 5 is provided on the feeding bucket 2.

[0022] The power assembly 6 includes a power motor 9 arranged on the cover plate 3, and a driving gear 10 is coaxially provided on the motor shaft of the power motor 9. A stirring rod 11 is slidingly provided on the feeding bucket 2, and the stirring rod 11 is vertically arranged. A driven gear 12 is coaxially provided on the stirring rod 11, and the driven gear 12 is meshed with the driving gear 10. A plurality of stirring blades 13 are provided at one end of the stirring rod 11 extending into the feeding bucket 2, and the plurality of stirring blades 13 are evenly distributed along the circumference of the stirring rod 11.

[0023] A plurality of toothed rings 14 are provided on one end of the stirring rod 11 away from the stirring blade 13. The plurality of toothed rings 14 are evenly distributed along the axial direction of the stirring rod 11. A sliding groove 16 is provided on the side wall of the stirring rod 11. The sliding groove 16 is arranged along the axial direction of the stirring rod 11. A sliding bar 15 is provided on the inner side wall of the driven gear 12 to slide within the sliding groove 16.

[0024] A bracket 17 is provided on the cover plate 3 , and the driving assembly 8 includes a driving motor 18 provided on the bracket 17 . The driving motor 18 is located above the power motor 9 , and a driving gear is coaxially provided on the motor shaft of the driving motor 18 .

[0025] The sealing member 7 includes a sealing plug 20 arranged at the bottom of the stirring rod 11. In this embodiment, the sealing plug 20 can be a wooden plug. The bottom of the sealing plug 20 is provided with a guiding arc surface, and the side of the sealing plug 20 close to the stirring rod 11 is provided with a guiding inclined surface 21.

[0026] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An extruder for TPV elastomer granulation, characterized by: The invention comprises an extruder housing (1), wherein a feeding bucket (2) is provided on the extruder housing (1), a feeding port (4) is provided on the feeding bucket (2), a feed port (5) is provided at the bottom of the feeding bucket (2), the feed port (5) is connected to the extruder housing (1), a power assembly (6) for stirring the feeding bucket (2) is provided on the feeding bucket (2), a sealing member (7) for sealing the feed port (5) is provided on the power assembly (6), and a driving assembly (8) for driving the sealing member (7) to intermittently open the feed port (5) is provided on the feeding bucket (2).

2. The extruder for TPV elastomer granulation according to claim 1, characterized in that: The power assembly (6) comprises a power motor (9) arranged on a feeding bucket (2); a motor shaft of the power motor (9) is coaxially provided with a driving gear (10); a stirring rod (11) is provided on the feeding bucket (2); a driven gear (12) is coaxially provided on the stirring rod (11); the driven gear (12) and the driving gear (10) are meshed; and a plurality of stirring blades (13) are provided on the stirring rod (11).

3. The extruder for TPV elastomer granulation according to claim 2, characterized in that: The sealing member (7) comprises a sealing plug (20) arranged at the bottom of the stirring rod (11).

4. The extruder for TPV elastomer granulation according to claim 3, characterized in that: A guide slope (21) is provided on one side of the sealing plug (20) close to the stirring rod (11).

5. The extruder for TPV elastomer granulation according to claim 2, characterized in that: A plurality of toothed rings (14) are provided at one end of the stirring rod (11) extending out of the feeding barrel (2), and the plurality of toothed rings (14) are evenly distributed along the axial direction of the stirring rod (11). A sliding groove (16) is provided on the side wall of the stirring rod (11), and a sliding bar (15) is provided on the driven gear (12) for sliding in the sliding groove (16). The driving assembly (8) comprises a driving motor (18) arranged on the feeding bucket (2); a motor shaft of the driving motor (18) is coaxially provided with a driving gear (19); and the driving gear (19) is meshed with a gear ring (14).

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