Double-transmission rubber internal mixer

By combining the annular agitator and electric push rod in the dual-drive rubber mixer, the problem of wear on the circulation trough and positioning block was solved, achieving a stable rubber material extrusion effect and ensuring the normal operation of the equipment in the event of component failure.

CN223971920UActive Publication Date: 2026-03-06BENGBU AIYOU NEW MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

In existing rubber internal mixers, the sliding connection between the circulation groove and the positioning block is prone to wear, which affects the pressing angle of the pressure plate and thus affects the extrusion effect of the rubber material.

Method used

The device employs a dual-drive structure, combining a ring agitator and an electric push rod to achieve multi-directional stirring and pressing of materials. A slider is slidably connected to the ring agitator, and the motor drives the agitator to rotate while the electric push rod presses it down, ensuring that the device can still operate normally even if a single component fails.

Benefits of technology

It improves the extrusion effect of rubber materials, enhances the stability and reliability of the device, and ensures normal processing even when a single component fails.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a double-transmission rubber internal mixer, which relates to the technical field of rubber processing equipment and comprises an internal mixing bin, a motor and a pair of electric push rods are arranged on the internal mixing bin, an output shaft of the motor penetrates through the internal mixing bin to be fixedly connected with a rotating shaft, output shafts of the electric push rods extend into the internal mixing bin, and the rotating shaft is fixedly connected with the rotating shaft. A sliding groove is formed in the rotating shaft, an annular stirrer is connected to the rotating shaft in a sliding mode, a sliding block is connected to the annular stirrer in a sliding mode, the sliding block is fixedly connected with the electric push rod, a sliding block is fixedly installed on the annular stirrer, and the sliding block penetrates through the annular stirrer to be connected with the sliding groove in a sliding mode. Meanwhile, an electric push rod and a motor are started to press and stir the materials, and the problems that in the prior art, a circulating groove and a positioning block are slidably connected, a pressing plate is driven to press downwards, the surface of the positioning block is prone to being abraded, the pressing angle of the pressing plate is affected, and finally the extrusion effect on the rubber materials is affected are solved.
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Description

Technical Field

[0001] This utility model relates to the technical field of rubber processing equipment, specifically a dual-drive rubber mixer. Background Technology

[0002] A rubber internal mixer is mainly used for the plasticizing and mixing of rubber and is an indispensable piece of equipment in the rubber production process.

[0003] Chinese utility model patent application CN 218429312 U discloses a dual-drive mechanism for a rubber internal mixer: it includes a base, on which a material collection chamber is formed. Two symmetrically arranged rotating shafts are rotatably connected to the inner wall of the material collection chamber. Rotors are fixedly installed on the rotating shafts. The two rotors cooperate with the inner wall of the material collection chamber. The two rotating shafts are connected by a drive. A collection hopper is fixedly installed on the top of the base. The collection hopper communicates with the material collection chamber. Two symmetrically arranged support plates are fixedly installed on the top of the base.

[0004] However, existing technologies still have shortcomings:

[0005] The matching of the circulation groove and the positioning block requires precise dimensions and shape to ensure smooth and stable sliding. Long-term sliding friction will cause wear on the surface of the positioning block, affecting the stability and reliability of the sliding connection, which in turn affects the angle of the pressure plate and ultimately affects the extrusion effect on the rubber material. Utility Model Content

[0006] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a dual-drive rubber internal mixer, which solves the problem in the prior art where the sliding connection between the circulation groove and the positioning block drives the pressure plate downward, easily leading to wear on the surface of the positioning block, affecting the downward pressing angle of the pressure plate, and ultimately affecting the extrusion effect on the rubber material.

[0007] To achieve the above objectives, this utility model proposes a dual-drive rubber internal mixer, including a mixing chamber. A motor and a pair of electric push rods are mounted on the mixing chamber. The output shaft of the motor passes through the mixing chamber and is fixedly connected to a rotating shaft. The output shaft of the electric push rods extends into the mixing chamber. A groove is provided on the rotating shaft. An annular agitator is slidably connected to the rotating shaft. A slider is slidably connected to the annular agitator. The slider is fixedly connected to the electric push rods. A sliding block is fixedly installed on the annular agitator, and the sliding block passes through the annular agitator and is slidably connected to the groove.

[0008] As a further embodiment of this utility model: a pair of feed inlets are symmetrically opened on the mixing chamber, and the motor is located between the pair of feed inlets.

[0009] As a further embodiment of this utility model: the electric push rods are symmetrically arranged on both sides of the motor, and the electric push rods are arranged between the feed inlets.

[0010] As a further embodiment of this utility model: the annular stirrer includes a connecting rod, an annular pressure plate, a receiving seat, and a connecting shaft.

[0011] As a further embodiment of this utility model: three annular pressure plates are equidistantly arranged, and connecting rods are fixedly installed between the motors to achieve a fixed connection between the annular pressure plates.

[0012] As a further embodiment of this utility model: the connecting rods are provided in several groups, and the connecting rods are equidistantly arranged between the annular pressure plates.

[0013] As a further embodiment of this utility model: a connecting shaft is provided on the annular pressure plate, a receiving seat is fixedly installed in the middle of the connecting shaft, a through hole is provided on the receiving seat, the annular stirrer is slidably connected to the rotating shaft through the through hole, and the sliding block passes through the receiving seat and is slidably connected to the sliding groove.

[0014] As a further embodiment of this utility model: a support frame is fixedly installed inside the mixing chamber, one end of the rotating shaft is fixedly connected to the output shaft of the motor, and the other end is rotatably connected to the support frame.

[0015] As a further embodiment of this utility model: a discharge port is provided below the mixing chamber, a valve is fixedly installed on the output shaft of the discharge port, and a support base is fixedly installed below the mixing chamber to provide support for the device and facilitate material feeding operation.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The ring-shaped agitator can be formed by the connection between the ring pressure plate, the receiving seat, the connecting shaft and the connecting rod, which can realize multi-directional agitation of materials.

[0018] 2. By setting up a rotating shaft and a ring agitator, with a slider slidably connected to the ring agitator, starting the motor drives the ring agitator to rotate and mix the material. At the same time, a pair of electric push rods are activated to drive the ring agitator to press down, realizing the pressing and mixing of the material. Starting the motor to drive the ring agitator to rotate does not affect the connection between the electric push rods and the ring agitator. If either the motor or the electric push rod fails, the device can continue to process the material. Attached Figure Description

[0019] Figure 1 This is a front view of the present invention;

[0020] Figure 2This is a cross-sectional view of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the annular stirrer of this utility model.

[0022] In the diagram: 1. Feed inlet; 2. Mixing bin; 3. Motor; 4. Electric push rod; 5. Discharge outlet; 6. Valve; 7. Support base; 8. Annular agitator; 9. Support frame; 10. Sliding block; 11. Slide groove; 12. Connecting rod; 13. Annular pressure plate; 14. Sliding block; 15. Receiving seat; 16. Connecting shaft; 17. Rotating shaft. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] like Figure 1-3 As shown, the dual-drive rubber mixer includes a mixing chamber 2. A pair of symmetrical feed inlets 1 are located on the mixing chamber 2. A motor 3 is positioned between the feed inlets 1 and is fixedly mounted on the mixing chamber 2. The output shaft of the motor 3 passes through the mixing chamber 2 and is fixedly connected to a rotating shaft 17. A pair of electric push rods 4 are fixedly mounted on the mixing chamber 2. The output shafts of the electric push rods 4 extend into the mixing chamber 2. The electric push rods 4 are symmetrically positioned on both sides of the motor 3 and between the feed inlets 1. A groove 11 is provided on the rotating shaft 17, and a ring-shaped agitator is slidably connected to the rotating shaft 17. 8. A slider 14 is slidably connected to the annular mixer 8. The slider 14 is fixedly connected to the electric push rod 4. A sliding block 10 is fixedly installed on the annular mixer 8. The sliding block 10 passes through the annular mixer 8 and is slidably connected to the slide groove 11. The material to be processed is added into the feed port 1. The motor 3 is started to drive the annular mixer 8 to rotate and stir the material. At the same time, a pair of electric push rods 4 are started to drive the annular mixer 8 to press down, thereby pressing and stirring the material. At the same time, if one of the motor 3 or the electric push rod 4 fails, the device can continue to process the material.

[0025] As one embodiment of this invention, the annular stirrer 8 includes a connecting rod 12, annular pressure plate 13, a receiving seat 15, and a connecting shaft 16. Three annular pressure plates 13 are equidistantly arranged, and connecting rods 12 are fixedly installed between motors 3. The connecting rods 12 achieve a fixed connection between the annular pressure plates 13. Several sets of connecting rods 12 are arranged equidistantly between the annular pressure plates 13 to maintain the stability of the annular stirrer 8. A connecting shaft 16 is provided on the annular pressure plate 13, and a receiving seat 15 is fixedly installed in the middle of the connecting shaft 16. A through hole is provided on the receiving seat 15, and the annular stirrer 8 is slidably connected to the rotating shaft 17 through the through hole. A sliding block 10 passes through the receiving seat 15 and is slidably connected to the sliding groove 11. A support frame 9 is fixedly installed in the mixing chamber 2. One end of the rotating shaft 17 is fixedly connected to the output shaft of the motor 3, and the other end is rotatably connected to the support frame 9.

[0026] As one embodiment of this example, a discharge port 5 is provided below the mixing chamber 2. A valve 6 is fixedly installed on the output shaft of the discharge port 5. The purpose of the valve 6 is to facilitate the control of material feeding. A support base 7 is fixedly installed below the mixing chamber 2 to provide support for the device and facilitate the material feeding operation.

[0027] Working principle:

[0028] During operation, the material is added through the inlet 1, and the motor 3 is started to drive the ring agitator 8 to rotate and process the material. At the same time, a pair of electric push rods 4 are started to drive the ring agitator 8 to press down, thereby pressing and mixing the material. If either the motor 3 or the electric push rod 4 fails, the device can continue to process the material. After processing, the valve 6 is opened and the material is discharged through the outlet 5.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. Double drive rubber mixing mill, characterized in that, Including the banburying bin (2), the motor (3) and a pair of electric push rod (4) are provided on the banburying bin (2), the output shaft of the motor (3) is fixedly connected with the rotating shaft (17) through the banburying bin (2), the output shaft of the electric push rod (4) extends to the banburying bin (2), the rotating shaft (17) is provided with the sliding groove (11), the annular stirrer (8) is slidably connected on the rotating shaft (17), the sliding block (14) is slidably connected on the annular stirrer (8), the sliding block (14) is fixedly connected with the electric push rod (4), the sliding block (10) is fixedly installed on the annular stirrer (8), and the sliding block (10) is slidably connected with the sliding groove (11) through the annular stirrer (8).

2. Rubber internal mixer with double drive according to claim 1, characterized in that A pair of feeding ports (1) are symmetrically provided on the banburying bin (2), and the motor (3) is arranged between the pair of feeding ports (1).

3. Rubber internal mixer with double drive according to claim 2, characterized in that The electric push rod (4) is symmetrically arranged on both sides of the motor (3), and the electric push rod (4) is arranged between the feeding ports (1).

4. The dual drive rubber mixing mill of claim 1, wherein, The annular stirrer (8) comprises a connecting rod (12), an annular pressing plate (13), a receiving seat (15) and a connecting shaft (16).

5. Rubber internal mixer with double drive according to claim 4, characterized in that The annular pressing plate (13) is equidistantly provided with three, the connecting rod (12) is fixedly installed between the motor (3), and the connecting rod (12) is used for fixedly connecting the annular pressing plates (13).

6. Rubber internal mixer with dual drive according to claim 5, characterized in that The connecting rod (12) is provided in several groups, and the connecting rod (12) is equidistantly arranged between the annular pressing plates (13).

7. Rubber internal mixer with dual drive according to claim 6, characterized in that The annular pressing plate (13) is provided with the connecting shaft (16), the receiving seat (15) is fixedly installed in the middle of the connecting shaft (16), the receiving seat (15) is provided with a through hole, the annular stirrer (8) is slidably connected with the rotating shaft (17) through the through hole, and the sliding block (10) is slidably connected with the sliding groove (11) through the receiving seat (15).

8. The dual drive rubber mixing mill of claim 1, wherein, The banburying bin (2) is fixedly installed with a support frame (9), one end of the rotating shaft (17) is fixedly connected with the output shaft of the motor (3), and the other end is rotatably connected with the support frame (9).

9. The dual drive rubber mixing mill of claim 1, wherein, A discharge port (5) is formed below the banburying bin (2), a valve (6) is fixedly installed on the output shaft of the discharge port (5), a supporting seat (7) is fixedly installed below the banburying bin (2), the device is supported, and the discharging operation is facilitated.

Citation Information

Patent Citations

  • Dual-drive mechanism of rubber internal mixer

    CN218429312U