Spiral flow guide rubber extrusion screw
By introducing a fixed plate, sliding rod, and spring structure into the spiral flow guiding rubber extrusion screw, the screw can be quickly installed and disassembled. The stirring mechanism enables uniform mixing of materials, solving the problem of equipment downtime caused by screw wear, improving production efficiency and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING LIHE RUBBER PROD CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-08
AI Technical Summary
In existing technologies, screw wear and failure lead to long equipment downtime, affecting production efficiency and increasing costs.
A spiral flow guiding rubber extrusion screw was designed, which adopts a structure of fixed plate, sliding rod, locking groove and spring to facilitate quick installation and disassembly of the screw, and is equipped with a stirring mechanism to achieve uniform mixing of materials.
It enables convenient installation and disassembly of the screw, improves production efficiency, and reduces equipment downtime and costs.
Smart Images

Figure CN224210501U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rubber processing technology, and in particular to a spiral flow guiding rubber extrusion screw. Background Technology
[0002] A screw is a cylindrical rod-shaped part with a helical outer surface, made of metal, and widely used in the mechanical field. It converts rotational motion into linear motion or transmits torque and power through its helical structure. In industrial production, screws are used in injection molding machines and extruders to convey, compress, and melt materials such as plastics. In screw-type drilling rigs used in construction, they are used for drilling operations. In daily life, tools such as jacks also rely on screws, using rotation to lift heavy objects. With its unique structure and diverse functions, the screw has become an indispensable key component in many scenarios such as mechanical transmission and material handling.
[0003] The spiral-guided rubber extrusion screw is a core component of rubber extrusion molding equipment. Its surface, with specially designed spiral grooves and a flow-guiding structure, enables efficient conveying, uniform compression, and full plasticization of rubber raw materials during rotation. Through precise pitch, groove depth, and spiral angle design, the screw generates regular axial movement and radial disturbance of the rubber within the extruder barrel, promoting material mixing, dispersion, and heating. This ensures that the rubber is extruded from the die at stable pressure and in a uniform state, thus meeting the stringent requirements of various rubber products for molding precision, surface quality, and physical properties. It is widely used in tires, hoses, and sealing strips. In the production and use of rubber products, friction generates heat during extrusion. While the spiral guide screw helps with material flow and mixing, it can also cause uneven heat distribution. In existing technologies, the temperature of each section of the barrel is set reasonably according to the characteristics of the rubber and the extrusion process requirements. For uneven heat distribution, the barrel temperature can be appropriately increased in lower temperature areas and appropriately decreased in higher temperature areas to balance the heat distribution of the entire extrusion process. However, when the screw wears or malfunctions and needs repair or replacement, it will lead to long downtime, affecting production efficiency and increasing production costs. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a spiral flow-guiding rubber extrusion screw, which aims to improve the problem in the prior art that when the screw wears or fails and needs to be repaired or replaced, it will lead to long equipment downtime, affect production efficiency, and increase production costs.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a spiral flow guiding rubber extrusion screw, comprising a machine body, a fixed plate fixedly connected to the left side of the inner side of the machine body, a sliding rod slidably connected to the right side of the outer wall of the fixed plate, a locking groove being provided on both the outer side of the sliding rod and the outer side of the fixed plate, a locking rod slidably connected to the inner side of the locking groove, a connecting block fixedly connected to the outer side of the sliding rod, a spring being provided in the middle of the connecting block, and a stirring mechanism being installed on the top right side of the machine body, the stirring mechanism being used to uniformly stir the material.
[0006] As a further description of the above technical solution:
[0007] The stirring mechanism includes a stirring tank, which is installed on the top of the machine body. A motor is fixedly connected to the right side of the outer wall of the stirring tank. A rotating shaft is fixedly connected to the output end of the motor. A connecting rod is fixedly connected to the outer side of the rotating shaft. A stirring rod is fixedly connected to both the front and rear ends of the outer side of the connecting rod. A stirring blade is fixedly connected to the left side of the connecting rod. A mesh is fixedly connected to the inside of the stirring tank.
[0008] As a further description of the above technical solution:
[0009] Support legs are fixedly connected to the four corners of the bottom of the machine body, and foot pads are fixedly connected to the bottom of the support legs.
[0010] As a further description of the above technical solution:
[0011] The outer right side of the body of the machine is fixedly connected to the front and rear ends of the mounting blocks, and the outer side of the mounting blocks is fixedly connected to the handles.
[0012] As a further description of the above technical solution:
[0013] A warning sign is provided on the left side of the outer wall of the machine body, and a screw is threadedly connected to the outer side of the warning sign.
[0014] As a further description of the above technical solution:
[0015] The top four corners of the body are each equipped with corner guards, and the outer sides of the corner guards are threaded with two screws.
[0016] As a further description of the above technical solution:
[0017] A rotating rod is rotatably connected to the top right side of the mixing tank.
[0018] As a further description of the above technical solution:
[0019] A cover plate is fixedly connected to the outside of the rotating rod.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the fixing plate is fixed on the machine body, the sliding rod is slidably connected to it, and a locking groove is provided. The locking rod slides in the groove. The connecting block is installed on the sliding rod and a spring is installed in the middle. When installing the screw, the sliding rod is moved to compress the spring. After the screw is inserted, it is released. The spring causes the sliding rod to return to its original position and the locking rod is fixed, which realizes the convenient installation and disassembly of the screw.
[0022] 2. In this utility model, the starting motor drives the rotating shaft to rotate through its output end. The rotating shaft drives the stirring rod and stirring blade through the connecting rod, thereby realizing the stirring of materials, assisting the stirring process, and ensuring that the materials are mixed evenly. Attached Figure Description
[0023] Figure 1 This is a perspective view of the spiral flow guiding rubber extrusion screw proposed in this utility model;
[0024] Figure 2 This is a front view of the spiral flow-guiding rubber extrusion screw proposed in this utility model;
[0025] Figure 3 This is a side view of the spiral flow guiding rubber extrusion screw proposed in this utility model;
[0026] Figure 4 This is a partial structural diagram of the spiral flow-guiding rubber extrusion screw proposed in this utility model;
[0027] Figure 5 This is a schematic diagram of the stirring mechanism of the spiral flow guiding rubber extrusion screw proposed in this utility model.
[0028] Legend:
[0029] 1. Machine body; 2. Stirring mechanism; 201. Stirring tank; 202. Motor; 203. Rotating shaft; 204. Connecting rod; 205. Stirring rod; 206. Stirring blade; 207. Strainer; 3. Fixing plate; 4. Sliding rod; 5. Engaging groove; 6. Engaging rod; 7. Connecting block; 8. Spring; 9. Support leg; 10. Foot pad; 11. Placement block; 12. Handle; 13. Warning sign; 14. Screw one; 15. Corner protector; 16. Screw two; 17. Rotating rod; 18. Cover plate. 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] Reference Figure 1 , Figure 2 and Figure 4 An embodiment of this utility model provides a spiral flow guiding rubber extrusion screw, including a machine body 1. A fixed plate 3 is fixedly connected to the left side of the inside of the machine body 1. A sliding rod 4 is slidably connected to the right side of the outer wall of the fixed plate 3. The sliding rod 4 and the outer side of the fixed plate 3 are both provided with a locking groove 5. A locking rod 6 is slidably connected to the inner side of the locking groove 5. A connecting block 7 is fixedly connected to the outer side of the sliding rod 4. A spring 8 is provided in the middle of the connecting block 7 to play a compression and rebound role. A stirring mechanism 2 is installed on the top right side of the machine body 1. The stirring mechanism 2 is used to uniformly stir the material. Support legs 9 are fixedly connected to the four corners of the bottom of the machine body 1. Foot pads 10 are fixedly connected to the bottom of the support legs 9 to support the whole. Placement blocks 11 are fixedly connected to the front and rear ends of the right side of the outer wall of the machine body 1. A handle 12 is fixedly connected to the outer side of the placement block 11 to facilitate operation.
[0032] Specifically, the fixing plate 3 is firmly installed on the machine body 1, allowing the sliding rod 4 to slide with the fixing plate 3. Engaging grooves 5 are respectively opened on the sliding rod 4 and the fixing plate 3, allowing the engaging rod 6 to slide freely within the grooves 5. A connecting block 7 is installed on the sliding rod 4, and a spring 8 is installed in the middle of the connecting block 7. During the installation of the screw, the spring 8 is compressed by moving the sliding rod 4. After the screw is placed in place, the spring 8 is released, and its rebound force drives the sliding rod 4 to reset, working in conjunction with the engaging rod 6 to achieve quick installation and removal of the screw. Support legs 9 are provided at the four corners of the bottom of the machine body 1, and foot pads 10 are provided at the bottom of the support legs 9 to provide overall support. In addition, mounting blocks 11 are provided at both the front and rear ends of the right side of the outer wall of the machine body 1, and handles 12 are provided on the outer side of the mounting blocks 11 for easy operation.
[0033] Reference Figure 2 , Figure 3 and Figure 5The stirring mechanism 2 includes a stirring tank 201, which is installed on the top of the machine body 1. A motor 202 is fixedly connected to the right side of the outer wall of the stirring tank 201. A rotating shaft 203 is fixedly connected to the output end of the motor 202. The kinetic energy of the motor 202 drives the rotating shaft 203 to rotate. A connecting rod 204 is fixedly connected to the outside of the rotating shaft 203, which will drive the connecting rod 204 to rotate as well. A stirring rod 205 is fixedly connected to the front and rear ends of the outer side of the connecting rod 204. A stirring blade 206 is fixedly connected to the left side of the connecting rod 204. A strainer 207 is fixedly connected inside the stirring tank 201. A warning sign 13 is provided on the front left side of the outer wall of the machine body 1. A screw 14 is threadedly connected to the outside of the warning sign 13. The warning sign 13 is fixed by the screw 14. Corner guards 15 are provided at the four corners of the top of the machine body 1. A screw 26 is threadedly connected to the outside of the corner guards 15. The corner guards 15 are fixed by the screw 26 to provide protection.
[0034] Specifically, after starting the motor 202, the output end of the motor 202 will drive the rotating shaft 203 to rotate. The rotating shaft 203 is connected to the connecting rod 204, which in turn drives the connecting rod 204 to rotate. An agitator 205 and a stirring blade 206 are installed on the connecting rod 204 to stir the material. In addition, a strainer 207 is set inside the mixing tank 201. Its use in conjunction with the above-mentioned components helps to achieve uniform mixing of the material. A warning sign 13 is provided on the front left side of the outer wall of the machine body 1. The warning sign 13 is connected to the screw 14 by the outer thread to fix it. At the same time, corner guards 15 are provided at the four corners of the top of the machine body 1. These corner guards 15 are connected to the screw 16 by the outer thread to ensure their stability and thus play a protective role.
[0035] Reference Figure 1 A rotating rod 17 is rotatably connected to the top right side of the mixing tank 201, and a cover plate 18 is fixedly connected to the outside of the rotating rod 17.
[0036] Specifically, a rotating rod 17 is provided on the top right side of the mixing tank 201, and a cover plate 18 is fixedly fitted on the outside of the rotating rod 17.
[0037] Working principle: The fixed plate 3 is fixed on the machine body 1. The sliding rod 4 is slidably connected to the fixed plate 3. The sliding rod 4 and the fixed plate 3 are both provided with locking grooves 5, so that the locking rod 6 can slide in the locking grooves 5. A connecting block 7 is installed on the sliding rod 4, and a spring 8 is installed on the connecting block 7. When installing the screw, the sliding rod 4 is moved to compress the spring 8. After the screw is inserted, it is released. The spring 8 rebounds and drives the sliding rod 4 to return to its original position, which is fixed in conjunction with the locking rod 6, so as to realize convenient installation and removal of the screw.
[0038] When the motor 202 is started, the output end of the motor 202 drives the rotating shaft 203 to rotate. The rotating shaft 203 is fixed to the connecting rod 204, so that the connecting rod 204 rotates accordingly. A stirring rod 205 and a stirring blade 206 are installed on the connecting rod 204. The stirring rod 205 and the stirring blade 206 move to stir the material. At the same time, a strainer 207 is set in the mixing tank 201. Through cooperation, the material is stirred, and the strainer 207 helps to achieve uniform mixing of the material.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A spiral-guided rubber extrusion screw, comprising a body (1), characterized in that: A fixing plate (3) is fixedly connected to the left side of the inner side of the machine body (1). A sliding rod (4) is slidably connected to the right side of the outer wall of the fixing plate (3). The sliding rod (4) and the outer side of the fixing plate (3) are both provided with a locking groove (5). A locking rod (6) is slidably connected to the inner side of the locking groove (5). A connecting block (7) is fixedly connected to the outer side of the sliding rod (4). A spring (8) is provided in the middle of the connecting block (7). A stirring mechanism (2) is installed on the top right side of the machine body (1). The stirring mechanism (2) is used to uniformly stir the material.
2. The spiral flow-guiding rubber extrusion screw according to claim 1, characterized in that: The stirring mechanism (2) includes a stirring tank (201), which is installed on the top of the machine body (1). A motor (202) is fixedly connected to the right side of the outer wall of the stirring tank (201). A rotating shaft (203) is fixedly connected to the output end of the motor (202). A connecting rod (204) is fixedly connected to the outside of the rotating shaft (203). A stirring rod (205) is fixedly connected to both the front and rear ends of the connecting rod (204). A stirring blade (206) is fixedly connected to the left side of the connecting rod (204). A strainer (207) is fixedly connected inside the stirring tank (201).
3. The spiral flow-guiding rubber extrusion screw according to claim 1, characterized in that: Support legs (9) are fixedly connected to the four corners of the bottom of the body (1), and foot pads (10) are fixedly connected to the bottom of the support legs (9).
4. The spiral flow-guiding rubber extrusion screw according to claim 1, characterized in that: The outer right side of the body (1) is fixedly connected to a mounting block (11) at both the front and rear ends, and a handle (12) is fixedly connected to the outer side of the mounting block (11).
5. The spiral flow-guiding rubber extrusion screw according to claim 1, characterized in that: A warning sign (13) is provided on the left side of the front side of the outer wall of the body (1), and a screw (14) is threadedly connected to the outer side of the warning sign (13).
6. The spiral flow-guiding rubber extrusion screw according to claim 1, characterized in that: The top four corners of the body (1) are provided with corner guards (15), and the outer side of the corner guards (15) is threaded with screws (16).
7. The spiral flow-guiding rubber extrusion screw according to claim 2, characterized in that: A rotating rod (17) is rotatably connected to the top right side of the mixing tank (201).
8. The spiral flow-guiding rubber extrusion screw according to claim 7, characterized in that: A cover plate (18) is fixedly connected to the outside of the rotating rod (17).