Adjusting device for internal mixer

By designing feeding and screening components on the internal mixer, the problem of material injection rate control was solved, achieving uniform feeding and screening of materials, and improving the mixing efficiency and service life of the equipment.

CN223933930UActive Publication Date: 2026-02-24HEBEI SHENGQIANJIA RUBBER TECH CO LTD
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Patent Information

Application Number
CN202520621433.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-02-24
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

Existing internal mixers cannot control the rate of material injection, which leads to increased pressure on the shearing components or material agglomeration, affecting mixing efficiency.

Method used

An adjustment device including a feeding component and a screening component was designed. Through the linkage of screen one and screen two, and by using elastic elements and protruding structures, the material is initially screened and its rate is controlled to avoid clumping. Continuous and uniform feeding is achieved through the cooperation of the guide cylinder and the drive motor.

Benefits of technology

It effectively prevents material agglomeration, controls the rate at which materials enter the internal mixer, reduces pressure on the shearing components, and improves mixing efficiency and equipment lifespan.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an adjusting device for an internal mixer, which comprises an internal mixer main body and a feeding assembly, the feeding assembly is in bolted connection with one side of the internal mixer main body, a sieving assembly is inserted between the feeding assembly and the internal mixer main body, the sieving assembly comprises a first screen, and a second screen is arranged on the first screen. The first screen is detachably connected to the end, close to the internal mixer body, of the feeding assembly, a plurality of protrusions are arranged on the side, away from the internal mixer body, of the first screen, materials are conveyed to the screening assembly through the feeding assembly, and due to the fact that the protrusions are arranged on one side of the first screen, caked materials are pressed and separated under the friction of the feeding assembly and the first screen, and the materials are separated. The screening assembly is arranged in the tank body and enables the materials to penetrate through the screening assembly, so that the situation that the use efficiency of equipment is affected by material caking is avoided, meanwhile, under limitation of the screening assembly, the speed of the materials entering the tank body is controlled, and the situation that the treatment pressure of the tank body on the materials is increased due to the fact that a large amount of materials enter the tank body can be avoided.
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Description

Technical Field

[0001] This utility model relates to the field of internal mixer technology, and in particular to an adjustment device for use on an internal mixer. Background Technology

[0002] A closed-loop mixer, also known as an internal mixer, is a mixer that uses a rotating impeller with blades to shear materials within a closed cylindrical container. Both the container and the impeller have small holes, allowing the material temperature to be adjusted by heating or cooling. It is used for mixing plastics or rubber. The advantage of this mixer is that it minimizes the risk of dust and smoke dispersion.

[0003] Existing internal mixers include a tank with an inlet on one side, a pressing assembly at the top of the tank's inner cavity, a shearing assembly at the bottom of the inner cavity for mixing materials, and a temperature regulating assembly for heating and softening materials. A discharge assembly is located near the bottom of the tank's side wall. During mixing, materials are injected into the tank through the inlet, then the pressing assembly is activated to compress the materials, while the shearing assembly simultaneously crushes them. The materials are then softened by the temperature regulating assembly and melted before being discharged from the tank through the discharge assembly. However, the rate at which materials are injected into the tank cannot be controlled. Excessive injection increases the pressure on the shearing assembly, potentially damaging it. Furthermore, material agglomeration can prevent the shearing assembly from effectively shearing the materials, affecting the mixing rate and efficiency.

[0004] Therefore, it is necessary to provide a new regulating device for internal mixers to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an adjustment device for use on an internal mixer.

[0006] The adjustment device for internal mixer provided by this utility model includes: internal mixer body, and also includes a feeding component, wherein the feeding component is bolted to one side of the internal mixer body, and a screening component is inserted between the feeding component and the internal mixer body.

[0007] The sieving assembly includes a first screen, which is detachably connected to one end of the feeding assembly near the main body of the internal mixer. The first screen has multiple protrusions on the side away from the main body of the internal mixer. The other side of the first screen is movably connected to a second screen. A handle is fixedly connected to the side wall of the second screen, and an elastic element is fixedly connected to the side wall of the handle. The elastic element is inserted into the first screen, and a plurality of insertion holes for limiting the position of the elastic element are opened on one side wall of the first screen.

[0008] Preferably, the feeding assembly includes a guide cylinder, which is bolted to one side of the internal mixer body. A drive motor is detachably connected to the end of the guide cylinder away from the internal mixer body. A receiving rod is detachably connected to the output end of the drive motor. A spiral blade is fixedly connected to the side wall of the receiving rod. An inlet cylinder is opened at the end of the guide cylinder away from the internal mixer body.

[0009] Preferably, the elastic element includes a movable block, a spring is fixedly connected inside the movable block, and a plug block is fixedly connected to the other end of the spring, the plug block passing through the side wall of the movable block.

[0010] Preferably, the guide cylinder is inclined, and the angle between the central axis of the guide cylinder and the horizontal plane is acute.

[0011] Preferably, the internal mixer body is provided with a pressing component, which is located above the feeding component.

[0012] Preferably, the top of the feed cylinder is funnel-shaped.

[0013] Compared with related technologies, the adjustment device for internal mixers provided by this utility model has the following advantages:

[0014] This utility model provides an adjustment device for use on an internal mixer. In specific implementation, the material is fed to the screening component through the feeding component. Since there are multiple protrusions on one side of the screen, the friction between the feeding component and the screen will compress and separate the agglomerated material, and allow the material to pass through the screening component. This avoids the material from agglomerating and affecting the efficiency of the equipment. At the same time, under the restriction of the screening component, the rate at which the material enters the tank is controlled, thereby avoiding the increase in the tank's processing pressure caused by a large amount of material entering the tank. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of the adjusting device for use on an internal mixer provided by this utility model;

[0016] Figure 2 A cross-sectional structural schematic diagram of the adjustment device for use on an internal mixer provided by this utility model;

[0017] Figure 3 A schematic diagram of the overall structure of the sieving assembly of the adjustment device for an internal mixer provided by this utility model;

[0018] Figure 4 A cross-sectional schematic diagram of the sieving assembly of the adjusting device for the internal mixer provided by this utility model;

[0019] Figure 5 This is an enlarged view of point a in the figure.

[0020] The following components are labeled in the diagram: 1. Internal mixer body; 2. Feeding assembly; 21. Guide cylinder; 22. Drive motor; 23. Support rod; 24. Spiral blade; 25. Feed cylinder; 3. Screening assembly; 31. Screen one; 32. Screen two; 33. Handle; 4. Elastic component; 41. Movable block; 42. Spring; 43. Insertion block; 5. Insertion hole. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please refer to the following: Figure 1 — Figure 5 ,in, Figure 1 A schematic diagram of the overall structure of the adjusting device for use on an internal mixer provided by this utility model; Figure 2 A cross-sectional structural schematic diagram of the adjustment device for use on an internal mixer provided by this utility model; Figure 3 A schematic diagram of the overall structure of the sieving assembly of the adjustment device for an internal mixer provided by this utility model; Figure 4 A cross-sectional schematic diagram of the sieving assembly of the adjusting device for the internal mixer provided by this utility model; Figure 5 This is an enlarged view of point a in the figure.

[0023] In practical implementation, an adjusting device is used on a type of internal mixer, with the structure as follows: Figure 1 — Figure 5 As shown, it includes: a main body 1 of an internal mixer, and a feeding assembly 2. The feeding assembly 2 is bolted to one side of the main body 1 of the internal mixer, and a screening assembly 3 is inserted between the feeding assembly 2 and the main body 1 of the internal mixer.

[0024] It should be noted that the main body 1 of the internal mixer serves as the core structure supporting other functional modules, and the feeding assembly 2 is fixed to one side with bolts for easy installation and maintenance. The screening assembly 3 between the two is designed with an interlocking structure to ensure that the material undergoes preliminary screening during the conveying process, preventing impurities from entering the internal mixer;

[0025] The screening assembly 3 includes a screen 31, which is bolted to one end of the feeding assembly 2 near the main body 1 of the internal mixer. The screen 31 has multiple protrusions on the side away from the main body 1 of the internal mixer. The other side of the screen 31 is rotatably connected to a screen 32. The side wall of the screen 32 is integrally connected to a handle 33. The side wall of the handle 33 is connected to an elastic element 4 through an arc-shaped connecting rod. The elastic element 4 is inserted into the screen 31. The side wall of the screen 31 has multiple insertion holes 5 for limiting the elastic element 4.

[0026] It should be noted that screen 1 31 is fixed to the end of the feeding assembly 2 near the internal mixer by bolt connection, and its protruding design can break up agglomerated materials; screen 2 32 is linked to screen 1 31 by handle 33 and elastic element 4. The insertion block 43 of elastic element 4 can be inserted into different insertion holes 5 to adjust the size of the pores of screen 1 31 and screen 2 32 to meet the screening requirements of materials with different particle sizes, and can also adjust the rate at which the material passes through the screening assembly 3.

[0027] The feeding assembly 2 includes a guide cylinder 25, which is bolted to one side of the internal mixer body 1. A drive motor 22 is detachably connected to the end of the guide cylinder 25 away from the internal mixer body 1. A receiving rod 23 is detachably connected to the output end of the drive motor 22. A spiral blade 24 is fixedly connected to the side wall of the receiving rod 23. An inlet cylinder 21 is opened at the end of the guide cylinder 25 away from the internal mixer body 1. The top of the inlet cylinder 21 is funnel-shaped.

[0028] It should be noted that gravity-assisted feeding is used; the drive motor 22 drives the spiral blades 24 to rotate through the receiving rod 23 to achieve continuous material feeding; the funnel-shaped opening at the top of the feed cylinder 21 expands the receiving range and reduces splashing during feeding.

[0029] The elastic element 4 includes a movable block 41, a spring 42 is fixedly connected inside the movable block 41, and a plug block 43 is fixedly connected to the other end of the spring 42. The plug block 43 passes through the side wall of the movable block 41.

[0030] It should be noted that the internal spring 42 of the movable block 41 provides a restoring force, allowing the insertion block 43 to retract under external pressure and automatically snap into the insertion hole 5 of the screen 31 after being released, achieving quick adjustment and fixation. This design simplifies the adjustment of the screen gap.

[0031] The guide cylinder 25 is inclined, and the angle between the central axis of the guide cylinder 25 and the horizontal plane is acute.

[0032] It should be noted that the acute-angle inclined arrangement ensures that the material is propelled by the spiral blades 24, while avoiding excessive motor load that may be caused by vertical design. At the same time, it shortens the material conveying path and improves feeding efficiency.

[0033] The main body 1 of the internal mixer is equipped with a pressing component, which is located above the feeding component 2;

[0034] It should be noted that the pressing component is located above the feeding component 2. When the material enters the main body 1 of the internal mixer, the pressing component is located above the feeding component 2, thus preventing the material from accumulating on the pressing component.

[0035] The circuits and controls involved in this utility model are all existing technologies and will not be described in detail here.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An adjustment device for an internal mixer, comprising the main body of the internal mixer (1), characterized in that, It also includes a feeding assembly (2), which is bolted to one side of the internal mixer body (1), and a screening assembly (3) is inserted between the feeding assembly (2) and the internal mixer body (1); The sieving assembly (3) includes a screen one (31), which is detachably connected to one end of the feeding assembly (2) near the main body (1) of the internal mixer. The screen one (31) has multiple protrusions on the side away from the main body (1) of the internal mixer. The other side of the screen one (31) is movably connected to a screen two (32). The side wall of the screen two (32) is fixedly connected to a handle (33), and the side wall of the handle (33) is fixedly connected to an elastic element (4). The elastic element (4) is inserted into the screen one (31), and the side wall of the screen one (31) has multiple insertion holes (5) for limiting the elastic element (4).

2. The adjusting device for use on an internal mixer according to claim 1, characterized in that, The feeding assembly (2) includes a guide cylinder (25), which is bolted to one side of the internal mixer body (1). A drive motor (22) is detachably connected to one end of the guide cylinder (25) away from the internal mixer body (1). A receiving rod (23) is detachably connected to the output end of the drive motor (22). A spiral blade (24) is fixedly connected to the side wall of the receiving rod (23). An inlet cylinder (21) is opened at one end of the guide cylinder (25) away from the internal mixer body (1).

3. The adjusting device for use on an internal mixer according to claim 2, characterized in that, The elastic element (4) includes a movable block (41), a spring (42) is fixedly connected inside the movable block (41), and a plug block (43) is fixedly connected to the other end of the spring (42), the plug block (43) passing through the side wall of the movable block (41).

4. The adjusting device for use on an internal mixer according to claim 3, characterized in that, The guide cylinder (25) is inclined, and the angle between the central axis of the guide cylinder (25) and the horizontal plane is acute.

5. The adjusting device for use on an internal mixer according to claim 4, characterized in that, The main body (1) of the internal mixer is equipped with a pressing component, which is located above the feeding component (2).

6. The adjusting device for use on an internal mixer according to claim 5, characterized in that, The top of the feed cylinder (21) is funnel-shaped.