Rubber double-screw extruder convenient for feeding

Abstract

The utility model discloses a rubber twin-screw extruder convenient for feeding, which relates to the technical field of twin-screw extruders, and comprises a rack fixedly connected to the bottom of a twin-screw extruder main body and a feeding hopper fixedly communicated to one end of the top of the twin-screw extruder main body, and an anti-blocking mechanism is arranged in the feeding hopper. An electric cleaning mechanism is arranged on the rack; the anti-blocking mechanism comprises a supporting rod fixedly connected to the outer wall of the top of the feeding hopper, a driving motor fixedly installed on the outer wall of the top of the supporting rod, a transmission shaft coaxially and fixedly connected with an output shaft of the driving motor through a coupler, a spiral blade and a scraping knife, wherein the spiral blade and the scraping knife are sequentially welded to the outer wall of the transmission shaft from bottom to top. The anti-blocking feeding device is provided with the anti-blocking mechanism, so that the problem that blockage or discontinuous feeding is easily caused due to poor fluidity of rubber raw materials is effectively solved, the feeding speed is conveniently increased, and the processing efficiency of rubber products is also conveniently improved.

Description

Technical Field

[0001] This utility model relates to the field of twin-screw extruder technology, and in particular to a twin-screw extruder for easy feeding of rubber. Background Technology

[0002] A twin-screw extruder is a specialized piece of equipment for processing rubber materials. It utilizes two meshing screws to mix, plasticize, shear, and convey the rubber material. This extruder design allows rubber materials to be processed under high temperature and pressure, facilitating the manufacture of a variety of rubber products.

[0003] However, existing twin-screw extruders are prone to clogging or discontinuous feeding of rubber raw materials due to the poor flowability of the rubber itself, resulting in low feeding rates and affecting the processing efficiency of rubber products. Therefore, we propose a twin-screw extruder for easier rubber feeding. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a convenient twin-screw extruder for feeding rubber.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A rubber twin-screw extruder for easy feeding includes a frame fixedly connected to the bottom of the twin-screw extruder body and a feeding hopper fixedly connected to one end of the top of the twin-screw extruder body. The feeding hopper is equipped with an anti-clogging mechanism, and the frame is equipped with an electric cleaning mechanism.

[0007] The anti-blocking mechanism includes a support rod fixedly connected to the top outer wall of the feeding hopper, a drive motor fixedly installed on the top outer wall of the support rod, a transmission shaft fixedly connected to the output shaft of the drive motor via a coupling, and spiral blades and scraper blades welded sequentially from bottom to top onto the outer wall of the transmission shaft.

[0008] As a preferred embodiment, the output shaft of the drive motor passes through the support rod, the feeding hopper includes a hopper body and a feeding pipe, the spiral blades are located inside the feeding pipe, and the blade of the scraper is in contact with the inner wall of the hopper body.

[0009] As a preferred embodiment, the electric cleaning mechanism includes a lead screw rotatably mounted on a frame, a reciprocating slider threaded onto the lead screw, a brush ring fixedly connected to the top outer wall of the reciprocating slider, a support plate welded to the side wall of the frame, and a servo motor fixedly mounted to the top outer wall of the support plate.

[0010] As a preferred embodiment, the output shaft of the servo motor is coaxially and fixedly connected to one end of the lead screw via a coupling.

[0011] As a preferred embodiment, the bottom inner wall of the frame is fixedly connected to a guide rail, and the reciprocating slider is also slidably connected to the guide rail.

[0012] As a preferred embodiment, the inner wall of the brush ring is provided with uniformly distributed bristles, and all the bristles are in contact with the barrel wall of the twin-screw extruder body.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. Equipped with an anti-blocking mechanism, the drive motor controls the rotation of the transmission shaft, which in turn drives the spiral blades to rotate in the feeding pipe to accelerate the feeding rate of rubber raw materials. At the same time, the scraper on the transmission shaft also rotates and continuously scrapes off some rubber raw materials adhering to the inner wall of the hopper to reduce the accumulation of raw materials. This effectively solves the problem of blockage or discontinuous feeding caused by the poor fluidity of rubber raw materials, thereby facilitating the improvement of the feeding rate and thus improving the processing efficiency of rubber products.

[0015] 2. An electric cleaning mechanism is installed. The lead screw is controlled by a servo motor to rotate. Then, under the guidance of the guide rail, the reciprocating slider connected to the lead screw will drive the brush ring to reciprocate linearly on the barrel wall of the twin-screw extruder. The bristles on the inner wall of the brush ring can effectively clean the dust accumulated on the barrel wall of the twin-screw extruder. This eliminates the need for manual cleaning, reduces labor intensity, and effectively improves cleaning efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the entire front view of this utility model;

[0017] Figure 2 This is a front view of the feed hopper after it has been cut open in this utility model;

[0018] Figure 3 This is a three-dimensional enlarged structural diagram of the anti-blocking mechanism in this utility model;

[0019] Figure 4 This is a three-dimensional enlarged structural diagram of the connection between the brush ring and the reciprocating slider in this utility model.

[0020] In the diagram: 1. Frame; 2. Twin-screw extruder body; 3. Feed hopper; 4. Support rod; 5. Drive motor; 6. Drive shaft; 7. Spiral blade; 8. Scraper; 9. Lead screw; 10. Reciprocating slide block; 11. Brush ring; 12. Support plate; 13. Servo motor; 14. Guide rail; 15. Brush bristles. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example 1, referring to Figure 1-3 A rubber twin-screw extruder for easy feeding includes a frame 1 fixedly connected to the bottom of the twin-screw extruder body 2 and a feeding hopper 3 fixedly connected to one end of the top of the twin-screw extruder body 2;

[0023] In this embodiment, the feeding hopper 3 is provided with an anti-blocking mechanism, which includes a support rod 4 fixedly connected to the top outer wall of the feeding hopper 3, a drive motor 5 fixedly installed on the top outer wall of the support rod 4, a transmission shaft 6 fixedly connected to the output shaft of the drive motor 5 through a coupling, and a spiral blade 7 and a scraper 8 welded sequentially from bottom to top on the outer wall of the transmission shaft 6.

[0024] Furthermore, the output shaft of the drive motor 5 passes through the support rod 4, the feeding hopper 3 includes a hopper body and a feeding pipe, the spiral blade 7 is located inside the feeding pipe, the blade of the scraper 8 contacts the inner wall of the hopper body, and the inner wall of the feeding hopper 3 can be coated with Teflon, which can reduce the friction between the rubber raw material and the wall surface, making it easier for the raw material to slide down.

[0025] In this embodiment, the drive motor 5 controls the rotation of the transmission shaft 6, which in turn drives the spiral blades 7 to rotate inside the feeding pipe, accelerating the feeding rate of the rubber raw material. At the same time, the scraper blade 8 on the transmission shaft 6 also rotates, continuously scraping off some rubber raw material adhering to the inner wall of the hopper to reduce the accumulation of raw material. This effectively solves the problem of blockage or discontinuous feeding caused by the poor fluidity of the rubber raw material itself, thereby facilitating the improvement of the feeding rate and thus improving the processing efficiency of rubber products.

[0026] Example 2, refer to Figure 1-2 and Figure 4 This embodiment is an optimization based on embodiment 1. Specifically, an electric cleaning mechanism is provided on the frame 1. Since dust tends to accumulate on the surface of the barrel wall of the twin-screw extruder body 2 after a period of use, affecting its appearance, an electric cleaning mechanism needs to be provided on the frame 1.

[0027] In this embodiment, the electric cleaning mechanism includes a lead screw 9 rotatably mounted on the frame 1, a reciprocating slider 10 threadedly connected to the lead screw 9, a brush ring 11 fixedly connected to the top outer wall of the reciprocating slider 10, a support plate 12 welded to the side wall of the frame 1, and a servo motor 13 fixedly mounted to the top outer wall of the support plate 12.

[0028] Furthermore, the output shaft of the servo motor 13 is coaxially fixedly connected to one end of the lead screw 9 via a coupling, ensuring that the servo motor 13 can drive the lead screw 9 to rotate coaxially. The bottom inner wall of the frame 1 is fixedly connected to the guide rail 14, and the reciprocating slider 10 is also slidably connected to the guide rail 14, which can ensure that the reciprocating slider 10, which is threadedly connected to the lead screw 9, can perform linear motion.

[0029] Furthermore, the inner wall of the brush ring 11 is provided with evenly distributed bristles 15, and all the bristles 15 are in contact with the barrel wall of the twin-screw extruder body 2.

[0030] In this embodiment, the servo motor 13 controls the lead screw 9 to rotate. Then, under the guidance of the guide rail 14, the reciprocating slider 10, which is threadedly connected to the lead screw 9, drives the brush ring 11 to reciprocate linearly on the barrel wall of the twin-screw extruder body 2. The brush bristles 15 on the inner wall of the brush ring 11 can effectively clean the dust accumulated on the barrel wall of the twin-screw extruder body 2. This eliminates the need for manual cleaning, reduces labor intensity, and effectively improves cleaning efficiency.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rubber twin-screw extruder for easy feeding, comprising a frame (1) fixedly connected to the bottom of the twin-screw extruder body (2) and a feed hopper (3) fixedly connected to one end of the top of the twin-screw extruder body (2), characterized in that, The feeding hopper (3) is equipped with an anti-blocking mechanism, and the frame (1) is equipped with an electric cleaning mechanism; The anti-blocking mechanism includes a support rod (4) fixedly connected to the top outer wall of the feeding hopper (3), a drive motor (5) fixedly installed on the top outer wall of the support rod (4), a transmission shaft (6) fixedly connected to the output shaft of the drive motor (5) through a coupling, and a spiral blade (7) and a scraper (8) welded sequentially from bottom to top on the outer wall of the transmission shaft (6).

2. The twin-screw extruder for easy feeding of rubber according to claim 1, characterized in that, The output shaft of the drive motor (5) passes through the support rod (4). The feeding hopper (3) includes a hopper body and a feeding pipe. The spiral blade (7) is located inside the feeding pipe, and the blade of the scraper (8) is in contact with the inner wall of the hopper body.

3. The twin-screw extruder for easy feeding of rubber according to claim 1, characterized in that, The electric cleaning mechanism includes a lead screw (9) rotatably mounted on the frame (1), a reciprocating slider (10) threadedly connected to the lead screw (9), a brush ring (11) fixedly connected to the top outer wall of the reciprocating slider (10), a support plate (12) welded to the side wall of the frame (1), and a servo motor (13) fixedly mounted on the top outer wall of the support plate (12).

4. The twin-screw extruder for easy feeding of rubber according to claim 3, characterized in that, The output shaft of the servo motor (13) is coaxially and fixedly connected to one end of the lead screw (9) via a coupling.

5. A twin-screw extruder for easy feeding of rubber according to claim 3, characterized in that, The bottom inner wall of the frame (1) is fixedly connected to a guide rail (14), and the reciprocating slider (10) is also slidably connected to the guide rail (14).

6. A twin-screw extruder for easy feeding of rubber according to claim 3, characterized in that, The inner wall of the brush ring (11) is provided with evenly distributed bristles (15), and all the bristles (15) are in contact with the barrel wall of the twin-screw extruder body (2).

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