Raw material mixing device for rubber

The rubber raw material mixing equipment using a double rotary rod and gear belt drive system solves the problems of inner wall adhesion and outlet blockage caused by the viscosity of rubber raw materials, achieving uniform mixing and smooth discharge.

CN224348107UActive Publication Date: 2026-06-12NINGGUO ZOYE PLASTIC & RUBBER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGGUO ZOYE PLASTIC & RUBBER CO LTD
Filing Date
2025-06-18
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Rubber raw materials are highly viscous at room temperature and tend to stick to the inner wall of the device, leading to uneven mixing and blockage of the discharge port.

Method used

A rubber raw material mixing device was designed, which adopts a double rotating rod and gear belt transmission system, combined with a scraper rod and paddle structure, to achieve effective mixing and conveying of rubber raw materials and avoid sticking and clogging.

Benefits of technology

It effectively cleans rubber raw materials adhering to the inner wall, ensures uniform mixing, and prevents blockage of the discharge port, thereby improving production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a rubber raw material mixing device, including a mixing tank. A second rotating rod is rotatably connected to the center of the mixing tank, and a mixing paddle is connected to the outside of the second rotating rod. Symmetrically arranged semi-circular plates are arranged inside the mixing tank below the second rotating rod, and an internal rotating rod is connected to the center of each semi-circular plate. The internal rotating rod is rotatably connected to the mixing tank. A hopper is connected to the lower surface of the mixing tank, and a first rotating rod is rotatably connected inside the hopper. Multiple evenly arranged paddles are connected to the outside of the first rotating rod. Simultaneously with the rotation of the second rotating rod, a connecting rod rotates synchronously with the cooperation of a first pulley, a belt, and a second pulley. The rotation of the connecting rod drives a second bevel gear to rotate, which in turn drives the first rotating rod to rotate synchronously with the cooperation of the first bevel gear. The first rotating rod drives the paddles to rotate, allowing the mixed rubber raw material to be evenly conveyed from the outlet, reducing the possibility of rubber raw material blockage.
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Description

Technical Field

[0001] This utility model belongs to the field of rubber processing, specifically, it relates to a rubber raw material mixing device. Background Technology

[0002] Rubber is a highly elastic polymer material, divided into two main categories: natural rubber and synthetic rubber. It has flexibility and reversible deformation ability at room temperature and is widely used in industry, transportation, medical care, daily life and other fields.

[0003] Patent CN221161100U discloses a raw material mixing device for rubber production, which facilitates the crushing of rubber raw materials and the mixing of rubber raw materials with other ingredients. However, in actual use, because rubber raw materials have a certain viscosity at room temperature, they are prone to sticking to the inner wall of the device during the crushing or mixing of raw materials with other ingredients, resulting in errors in the rubber raw material ratio or reduced output.

[0004] When conveying rubber raw materials after mixing, the rubber raw materials have a certain viscosity and the discharge port is small, which can cause material blockage at the discharge port. Utility Model Content

[0005] To address the technical problems of rubber raw materials easily sticking to the inner wall and clogging during discharge conveying in the prior art, this utility model provides a rubber raw material mixing device.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A rubber raw material mixing device includes a mixing tank, a second rotating rod rotatably connected to the middle of the mixing tank, and a mixing paddle connected to the outside of the second rotating rod; symmetrically arranged semi-circular plates are arranged inside the mixing tank below the second rotating rod, and an internal rotating rod is connected to the middle of each semi-circular plate, the internal rotating rod being rotatably connected to the mixing tank; a hopper is connected to the lower surface of the mixing tank, a first rotating rod is rotatably connected inside the hopper, and multiple evenly arranged paddles are connected to the outside of the first rotating rod.

[0008] Preferably, the upper end of the second rotating rod passes through the mixing tank and is connected to the first motor fixed to the upper surface of the mixing tank.

[0009] Preferably, the lower end of the second rotating rod is connected to four circumferentially arranged extension rods, and a scraping rod is fixedly connected to the upper part of each extension rod away from the second rotating rod.

[0010] Preferably, one end of one of the internal rotating rods passes through the mixing tank and is connected to a second motor fixed to the mixing tank.

[0011] Preferably, one end of one internal rotating rod passes through the mixing tank and is connected to the first gear, and the other end of the internal rotating rod near the first gear passes through the mixing tank and is connected to the second gear, with the first gear meshing with the second gear.

[0012] Preferably, a guide platform is connected to the lower part of the hopper at the position corresponding to the paddle. The guide platform has an arc-shaped structure and is set at the same center as the first rotating rod.

[0013] Preferably, one end of the first rotating rod passes through the hopper and is connected to the first bevel gear, a second bevel gear meshes above the first bevel gear, and a connecting rod is connected to the middle of the upper surface of the second bevel gear.

[0014] Preferably, a second pulley is connected to the upper end of the connecting rod, and a first pulley is connected to the outer side of the second rotating rod at a position corresponding to the second pulley. A belt is rotatably connected between the first pulley and the second pulley.

[0015] The beneficial effects of this utility model are:

[0016] 1) Start the first motor. After starting, pour the rubber raw material into the mixing tank through the feed port. After the first motor starts, it drives the second rotating rod and the stirring paddle to rotate. The stirring paddle stirs the rubber raw material inside the mixing tank. While the stirring paddle is stirring, the scraper rod rotates, which can effectively clean the rubber raw material stuck to the inner wall of the mixing tank and avoid damage to the rubber raw material.

[0017] 2) As the second rotating rod rotates, the connecting rod rotates synchronously with the cooperation of the first pulley, belt and the second pulley. The rotation of the connecting rod drives the second bevel gear to rotate. The second bevel gear, in cooperation with the first bevel gear, causes the first rotating rod to rotate synchronously. The first rotating rod drives the paddle to rotate, so that the rubber raw material after mixing can be evenly conveyed from the discharge port, reducing the occurrence of rubber raw material blockage. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a perspective view of the other side of the present invention;

[0020] Figure 3 This is a cross-sectional view of the present invention;

[0021] Figure 4 This is a perspective view of the stirring paddle in this utility model;

[0022] Figure 5 This is a perspective view of the semi-circular plate in this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Frame; 2. Hopper; 3. Mixing tank; 4. First motor; 5. Feed inlet; 6. Connecting rod; 7. Second motor;

[0025] 21. Discharge port; 22. Paddle blade; 23. First rotating rod; 24. Guide table;

[0026] 31. Scraper rod; 32. Second rotating rod; 33. Agitator;

[0027] 41. Belt; 42. First pulley; 43. Mounting plate;

[0028] 61. Second pulley; 62. Fixed block; 63. First bevel gear; 64. Second bevel gear;

[0029] 71. First gear; 72. Second gear; 73. Semicircular plate; 74. Extension rod; 75. Internal rotating rod. Detailed Implementation

[0030] 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.

[0031] Please see Figures 1-3 As shown, a rubber raw material mixing device includes a mixing tank 3, which is used to hold the rubber raw materials that need to be mixed.

[0032] The upper surface of the mixing tank 3 is connected to the inlet 5, which is used to pour rubber raw materials into the mixing tank 3.

[0033] A second rotating rod 32 is rotatably connected to the middle of the mixing tank 3. A stirring paddle 33 is connected to the outside of the second rotating rod 32. The second rotating rod 32 drives the stirring rod to rotate, which is used to stir the rubber raw materials.

[0034] The upper end of the second rotating rod 32 passes through the mixing tank 3 and is connected to the first motor 4, which is fixed to the upper surface of the mixing tank 3. The first motor 4 is used to drive the second rotating rod 32 to rotate.

[0035] A mounting plate 43 is connected to the upper surface of the mixing tank 3 at the position corresponding to the first motor 4. The first motor 4 is mounted on the mounting plate 43, which is used to support and fix the first motor 4.

[0036] The lower end of the second rotating rod 32 is connected to four circumferentially arranged extension rods 74. Each extension rod 74 is fixedly connected to a wall scraper 31 at the end away from the second rotating rod 32. The wall scraper 31 is used to clean the rubber material adhering to the inner wall of the mixing tank 3.

[0037] Please refer to it again. Figures 3-5 As shown, a symmetrically arranged semi-circular plate 73 is provided inside the mixing tank 3 below the second rotating rod 32. The semi-circular plate 73 is used to seal the opening at the bottom of the mixing tank 3.

[0038] Each semi-circular plate 73 is connected to an internal rotating rod 75 in the middle. The internal rotating rod 75 is rotatably connected to the mixing tank 3 and is used to support the semi-circular plate 73.

[0039] One end of one of the internal rotating rods 75 passes through the mixing tank 3 and is connected to a second motor 7 fixed to the mixing tank 3. The second motor 7 is used to drive one of the internal rotating rods 75 to rotate.

[0040] One of the internal rotating rods 75 has its other end passing through the mixing tank 3 and connected to the first gear 71. The other internal rotating rod 75 has its end near the first gear 71 passing through the mixing tank 3 and connected to the second gear 72. The first gear 71 and the second gear 72 mesh. Through the cooperation of the first gear 71 and the second gear 72, the two semi-circular plates 73 can rotate synchronously and in opposite directions.

[0041] Please refer to it again. Figure 3 and Figure 4 As shown, a hopper 2 is connected to the lower surface of the mixing tank 3. The hopper 2 is used to collect the mixed rubber raw materials.

[0042] A discharge port 21 is connected to the lower side of the hopper 2. The discharge port 21 is used to discharge the mixed rubber raw materials.

[0043] The hopper 2 is rotatably connected to a first rotating rod 23, and a number of evenly arranged blades 22 are connected to the outside of the first rotating rod 23. The blades 22 are rotated by the first rotating rod 23, which can discharge the mixed rubber raw materials in the hopper 2 and prevent the hopper 2 from being blocked.

[0044] Inside the hopper 2, at the position corresponding to the paddle 22, there is a guide platform 24. The guide platform 24 has an arc-shaped structure and is set at the same center as the first rotating rod 23. With this setting, when the paddle 22 pushes the mixed rubber material, it can avoid the rubber material remaining in the hopper 2.

[0045] One end of the first rotating rod 23 passes through the hopper 2 and is connected to the first bevel gear 63. A second bevel gear 64 meshes above the first bevel gear 63. A connecting rod 6 is connected to the middle of the upper surface of the second bevel gear 64. Through the cooperation of the first bevel gear 63 and the second bevel gear 64, the connecting rod 6 and the first rotating rod 23 can rotate synchronously.

[0046] Fixing blocks 62 are connected to both ends of the connecting rod 6 on the outside of the hopper 2 and the mixing tank 3. The fixing blocks 62 are used to support and fix the connecting rod 6.

[0047] The upper end of the connecting rod 6 is connected to the second pulley 61. The outer side of the second rotating rod 32 is connected to the first pulley 42 at the position corresponding to the second pulley 61. The first pulley 42 and the second pulley 61 are rotatably connected by a belt 41. Through the cooperation of the first pulley 42, the second pulley 61 and the belt 41, the second rotating rod 32 and the connecting rod 6 can rotate synchronously.

[0048] The lower surface of the hopper 2 is connected to the frame 1, which is used to support and fix the hopper 2.

[0049] In practical use, the first motor 4 is started. After starting, the rubber raw material is poured into the mixing tank 3 through the feed port 5. After the first motor 4 is started, it drives the second rotating rod 32 and the stirring paddle 33 to rotate. The stirring paddle 33 stirs the rubber raw material inside the mixing tank 3. While the stirring paddle 33 is stirring, the scraper rod 31 rotates, which can effectively clean the rubber raw material stuck to the inner wall of the mixing tank 3 and avoid the loss of rubber raw material.

[0050] After the rubber raw materials are mixed, the second motor 7 is started. The second motor 7 drives one of the internal rotating rods 75 to rotate. With the cooperation of the first gear 71 and the second gear 72, the two internal rotating rods 75 rotate synchronously and in opposite directions. After the semi-circular plate 73 rotates, the opening at the bottom of the mixing box 3 is no longer blocked, allowing the mixed rubber raw materials to fall into the hopper 2.

[0051] While the second rotating rod 32 rotates, the connecting rod 6 rotates synchronously with the cooperation of the first pulley 42, the belt 41, and the second pulley 61. The rotation of the connecting rod 6 drives the second bevel gear 64 to rotate. The second bevel gear 64, in cooperation with the first bevel gear 63, causes the first rotating rod 23 to rotate synchronously. The first rotating rod 23 drives the paddle 22 to rotate, so that the mixed rubber raw material can be evenly conveyed out from the discharge port 21, reducing the occurrence of rubber raw material blockage.

[0052] It should be noted that, in this document, terms such as “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 process, method, article, or apparatus.

[0053] 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.

Claims

1. A rubber raw material mixing device, comprising a mixing tank (3), characterized in that: The mixing tank (3) is rotatably connected to a second rotating rod (32) in the middle, and a stirring paddle (33) is connected to the outside of the second rotating rod (32); The mixing tank (3) has symmetrically arranged semi-circular plates (73) below the second rotating rod (32) inside. The middle of each semi-circular plate (73) is connected to an internal rotating rod (75), and the internal rotating rod (75) is rotatably connected to the mixing tank (3). The mixing tank (3) is connected to a hopper (2) on its lower surface. A first rotating rod (23) is rotatably connected inside the hopper (2). Multiple evenly arranged blades (22) are connected to the outside of the first rotating rod (23).

2. The raw material mixing apparatus for rubber according to claim 1, characterized by: The upper end of the second rotating rod (32) passes through the mixing tank (3) and is connected to the first motor (4) fixed to the upper surface of the mixing tank (3).

3. The rubber raw material mixing equipment according to claim 1, characterized in that: The lower end of the second rotating rod (32) is connected to four circumferentially arranged extension rods (74), and a scraping rod (31) is fixedly connected above the end of the extension rod (74) away from the second rotating rod (32).

4. The rubber raw material mixing equipment according to claim 1, characterized in that: One end of one of the internal rotating rods (75) passes through the mixing tank (3) and is connected to a second motor (7) fixed to the mixing tank (3).

5. A rubber raw material mixing device according to claim 3, characterized in that: One of the internal rotating rods (75) has its other end passing through the mixing tank (3) and connected to the first gear (71). The other internal rotating rod (75) has its end near the first gear (71) passing through the mixing tank (3) and connected to the second gear (72). The first gear (71) and the second gear (72) mesh.

6. The rubber raw material mixing equipment according to claim 5, characterized in that: Inside the hopper (2), at the position corresponding to the blade (22), there is a guide platform (24). The guide platform (24) has an arc-shaped structure and is set at the same center as the first rotating rod (23).

7. A rubber raw material mixing device according to claim 6, characterized in that: One end of the first rotating rod (23) passes through the hopper (2) and is connected to the first bevel gear (63). A second bevel gear (64) meshes above the first bevel gear (63), and a connecting rod (6) is connected to the middle of the upper surface of the second bevel gear (64).

8. A rubber raw material mixing device according to claim 7, characterized in that: The upper end of the connecting rod (6) is connected to a second pulley (61), and the outer side of the second rotating rod (32) is connected to a first pulley (42) at a position corresponding to the second pulley (61). A belt (41) is rotatably connected between the first pulley (42) and the second pulley (61).