An internal mixer for producing thermoplastic elastomers

Abstract

The utility model provides a kind of for producing thermoplastic elastomer internal mixer, belong to plastic production equipment technical field, including base, the inside of base is provided with the internal mixer component that the material needed for heat plastic is mixed sufficiently, the inside of base is provided with the material conveying assembly that the material of internal mixing is staged and is conveyed.This utility model first servo motor and the cooperation of stirring frame, the material of heat plastic completion is smoothly poured along stirring frame inner wall, the cooperation of second servo motor and stirring shaft, different material is stirred in multidirectional, multilevel, so that material mixing is more uniform, the cooperation of electric push rod and cap, prevent material splashing in stirring process, the cooperation of shaft, deflector and flow guide hole, guide the flow direction of material in stirring frame, so that material flows according to specific path in stirring process, further promote material mixing uniform, improve internal mixing effect.

Description

Technical Field

[0001] This utility model relates to the field of plastic production equipment technology, and more specifically, to a mixer for producing thermoplastic elastomers. Background Technology

[0002] Thermoplastic elastomers, as a new type of polymer material that combines the high elasticity of rubber with the thermoplastic processing properties of plastics, have been widely used in many fields such as automobiles, electronics, medical devices, and daily necessities. With the rapid development of these industries, the performance and quality requirements of thermoplastic elastomers are also increasing.

[0003] A search revealed that Chinese patent CN219946840U discloses a "mixer for producing thermoplastic elastomers, comprising a conveying device, a mixing chamber, and an extrusion device. By extending a conveying screw into the mixing chamber, the conveying screw can cooperate with the mixing screw within the mixing chamber to transport thermoplastic elastomer raw materials between the mixing chamber and the extrusion device, achieving plasticization and extrusion of the thermoplastic elastomer raw material in one device. Since the thermoplastic elastomer transported into the mixing chamber is in a molten state, the mixing time within the mixing chamber can be reduced, thereby improving the problem of yellowing and degradation of thermoplastic elastomers. This not only improves the yield of TPE granules but also simplifies the production process and increases the production efficiency of the mixer." However, the following drawbacks still exist:

[0004] The current equipment cannot effectively mix materials. During the internal mixing process, the flow state of the materials significantly impacts the mixing effect. The random distribution of material flow direction and speed makes it difficult to achieve an orderly flow, leading to localized accumulation or dead zones during mixing. This results in some materials not being fully mixed, affecting the uniformity and consistency of the product. Therefore, a new internal mixer for producing thermoplastic elastomers is proposed. Utility Model Content

[0005] The purpose of this invention is to address the current problem of inability to mix materials effectively. During the mixing process, the flow state of the materials significantly affects the mixing effect, and the flow direction and speed distribution are relatively random, making it difficult to form an orderly flow state. This leads to localized accumulation or dead zones in the materials during mixing, resulting in some materials not being fully mixed and affecting the uniformity and consistency of the product. The invention provides a mixing machine for producing thermoplastic elastomers to solve the above problems.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0007] The present invention is as follows: a mixing machine for producing thermoplastic elastomers, including a base, wherein the base is provided with a mixing component for thoroughly mixing and mixing the materials required for thermoplastics, and a feeding component for feeding the mixed materials in stages.

[0008] The mixing assembly includes a first servo motor bolted to one side of the base. A stirring frame is coaxially mounted on the output end of the first servo motor. Two second servo motors are bolted to one side of the stirring frame. A stirring shaft is coaxially mounted on the output end of each of the two second servo motors. A resistance wire is mounted on the inner wall of the stirring frame. An electric push rod is mounted on the inner top wall of the base. A cap is mounted on the output end of the electric push rod. A rotating shaft is rotatably connected to the inner wall of the cap. Multiple guide plates are fixedly connected to the outer wall of the rotating shaft. Multiple guide holes are opened through one side of each of the multiple guide plates.

[0009] As a preferred technical solution of this utility model, the feeding assembly includes a feeding frame fixedly connected to one side of the base, a feeding pipe is provided at the bottom of the feeding frame, one end of the feeding pipe away from the feeding frame is provided on one side of the stirring frame, an electromagnetic valve is provided on the inner wall of the feeding pipe, a controller is provided on the inner bottom wall of the base, and the electromagnetic valve is electrically connected to the controller.

[0010] As a preferred technical solution of this utility model, the base has sliding grooves extending through both sides facing each other, and the bottom of the stirring frame is fixedly connected to a fixed shaft.

[0011] As a preferred technical solution of this utility model, the top of the cap is fixedly connected to two fixing posts, and both fixing posts are slidably connected to the inside of the base.

[0012] As a preferred technical solution of this utility model, a fixing plate is fixedly connected to the inner wall of the base, and a clamp is fixedly connected to one side of the fixing plate.

[0013] As a preferred technical solution of this utility model, the inner wall of the feeding frame is fixedly connected with multiple partitions, and the multiple partitions are evenly distributed along the length direction of the feeding frame.

[0014] As a preferred technical solution of this utility model, a protective cover is bolted to one side of the stirring frame, and a plurality of heat dissipation holes are opened through one side of the protective cover.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. Through the set mixing components, the material is fully mixed. The first servo motor works with the mixing frame to smoothly pour the thermoplasticized material out along the inner wall of the mixing frame. The second servo motor works with the mixing shaft to perform multi-directional and multi-layer mixing of different materials, making the material more uniform. The electric push rod works with the cap to prevent the material from splashing during the mixing process. The rotating shaft, guide plate and guide hole work together to guide the flow direction of the material in the mixing frame, so that the material flows along a specific path during the mixing process, further promoting the uniform mixing of the material and improving the mixing effect.

[0017] 2. Through the set material conveying components, the material is conveyed in stages. The cooperation between the material conveying frame and the material conveying pipe guides the flow of material and ensures that the material enters the mixing frame smoothly for internal mixing. The cooperation between the solenoid valve and the controller accurately controls the amount of material entering the mixing frame, realizing staged material conveying and meeting the material quantity requirements of different production stages. Attached Figure Description

[0018] Figure 1 A schematic diagram of the internal mixer for producing thermoplastic elastomers provided by this utility model;

[0019] Figure 2 One of the right-side cross-sectional structural schematic diagrams of the internal mixer for producing thermoplastic elastomers provided by this utility model;

[0020] Figure 3 This is one of the front cross-sectional structural schematic diagrams of the internal mixer for producing thermoplastic elastomers provided by this utility model;

[0021] Figure 4 A second front cross-sectional view of the internal mixer for producing thermoplastic elastomers provided by this utility model;

[0022] Figure 5 This is the second schematic diagram of the right-side cross-sectional structure of the internal mixer for producing thermoplastic elastomers provided by this utility model.

[0023] The diagram shows: 1. Base; 2. Mixing assembly; 3. Feeding assembly; 201. First servo motor; 202. Stirring frame; 203. Second servo motor; 204. Stirring shaft; 205. Resistance wire; 206. Electric push rod; 207. Cap; 208. Rotating shaft; 209. Guide plate; 210. Guide hole; 301. Feeding frame; 302. Feeding pipe; 303. Solenoid valve; 304. Controller; 4. Sliding groove; 5. Fixed shaft; 6. Fixed column; 7. Fixed plate; 8. Clamp; 9. Partition; 10. Protective cover; 11. Heat dissipation hole. Detailed Implementation

[0024] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0025] Example: Figure 1 As shown, this embodiment proposes a mixing machine for producing thermoplastic elastomers, including a base 1, a mixing assembly 2 for thoroughly mixing and mixing the materials required for thermoplastics, and a feeding assembly 3 for feeding the mixed materials in stages inside the base 1.

[0026] like Figure 2 and Figure 3As shown, the mixing assembly 2 includes a first servo motor 201 bolted to one side of the base 1. A stirring frame 202 is coaxially mounted on the output end of the first servo motor 201. The first servo motor 201 drives the stirring frame 202 to rotate, discharging the thermoplasticized material. Two second servo motors 203 are bolted to one side of the stirring frame 202. A stirring shaft 204 is coaxially mounted on the output end of each of the two second servo motors 203. The second servo motors 203 drive the stirring shaft 204 to rotate, thereby stirring the material inside the stirring frame 202. The stirring frame 202... The inner wall of the mixing frame 202 is equipped with a resistance wire 205. When the resistance wire 205 is energized, it generates heat to heat the material to a suitable temperature. The inner top wall of the base 1 is equipped with an electric push rod 206. The output end of the electric push rod 206 is equipped with a cap 207. The inner wall of the cap is rotatably connected to a rotating shaft 208. The outer wall of the rotating shaft 208 is fixedly connected with multiple guide plates 209. Multiple guide holes 210 are opened through one side of each guide plate 209. The guide plates 209 and the guide holes 210 can guide the flow direction of the material in the mixing frame 202, further promoting the uniform mixing of the material. Various materials required for the production of thermoplastic elastomers are added into the mixing frame 202. Two second servo motors 203 are started, driving the mixing shaft 204 to rotate. The mixing shaft 204 operates in different rotation modes within the mixing frame 202, mixing the materials from multiple directions. Simultaneously, the resistance wire 205 is energized to generate heat, gradually raising the temperature of the materials until they reach a suitable plasticizing state. During the mixing and plasticizing process, the electric push rod 206 pushes the cap 207 down, completely covering the mixing frame 202. When the mixing shaft 204 mixes the materials, the interaction force between the materials and the guide plate 209 drives the rotating shaft 208, which is rotatably connected to the inner wall of the cap 207, to rotate. This causes multiple guide plates 209 fixed on the outer wall of the rotating shaft 208 to rotate together. Through the guide holes 210 on the guide plates 209, the material can be guided to flow along a specific path, changing the original flow direction and speed distribution of the material, further breaking the local unevenness in the material mixing process, and promoting more uniform mixing of the material. When the material in the mixing frame 202 completes the thermoplastic process and reaches the predetermined quality standard, the electric push rod 206 drives the cap 207 to reset upward and return to the initial position. Then, the first servo motor 201 is started to drive the mixing frame 202 to tilt and rotate, and smoothly pour out the thermoplastic material, realizing multi-directional and multi-level mixing of thermoplastic materials, improving the material mixing effect and product quality.

[0027] like Figure 4As shown, the material conveying assembly 3 includes a material conveying frame 301 fixedly connected to one side of the base 1. A material conveying pipe 302 is located at the bottom of the material conveying frame 301. One end of the material conveying pipe 302, away from the material conveying frame 301, is located on one side of the mixing frame 202. A solenoid valve 303, a Festo VUVG model, is installed on the inner bottom wall of the base 1. A controller 304, a Siemens S7-1200 model, is installed on the inner bottom wall of the base 1. The solenoid valve 303 is electrically connected to the controller 304. During material mixing, the material in the material conveying frame 301 is transported to the mixing frame 202 through the material conveying pipe 302. The controller 304 controls the opening and closing of the solenoid valve 303 according to production needs, thereby precisely controlling the amount of material entering the mixing frame 202, achieving staged material conveying, and thus meeting the material quantity requirements of different production stages, improving the controllability of the production process and the stability of product quality.

[0028] like Figure 2 and Figure 5 As shown, sliding grooves 4 are provided through the opposite sides of the base 1, and a fixed shaft 5 is fixedly connected to the bottom of the stirring frame 202. When the material in the stirring frame 202 is poured out, the fixed shaft 5 at the bottom of the stirring frame 202 can slide in the sliding grooves 4, providing guidance and support for the movement of the stirring frame 202, limiting the movement trajectory of the stirring frame 202, making the movement of the stirring frame 202 more stable, and reducing shaking and deviation.

[0029] like Figure 2 and Figure 5 As shown, two fixing posts 6 are fixedly connected to the top of the cap 207, and both fixing posts 6 are slidably connected to the inside of the base 1. During the process of the electric push rod 206 pushing the cap 207 up or down, the fixing posts 6 provide stable guidance for the movement of the cap 207, preventing the cap 207 from deviating or shaking during the movement, ensuring that the cap 207 can accurately cover the stirring frame 202, improving the sealing during material stirring and the stability of the cap 207's operation.

[0030] like Figure 3 and Figure 4 As shown, a fixing plate 7 is fixedly connected to the inner wall of the base 1, and a clamp 8 is fixedly connected to one side of the fixing plate 7. When materials are conveyed through the conveying pipe 302, the clamp 8 on the fixing plate 7 can limit the shaking and displacement of the conveying pipe 302, ensure the stable operation of the conveying pipe 302, reduce the shaking and vibration of the conveying pipe 302 during operation, and greatly extend the service life of the conveying pipe 302.

[0031] like Figure 4As shown, multiple partitions 9 are fixedly connected to the inner wall of the conveying frame 301, and the partitions 9 are evenly distributed along the length of the conveying frame 301. When material enters the conveying frame 301, the partitions 9 can divide the material into multiple parts, slow down the material flow speed, and make the material enter the mixing frame 202 more evenly. This avoids the problem of blockage or uneven conveying caused by concentrated material entry, improves the stability and uniformity of material conveying, and ensures the smooth operation of the production process.

[0032] like Figure 2 and Figure 5 As shown, a protective cover 10 is bolted to one side of the stirring frame 202, and multiple heat dissipation holes 11 are provided through one side of the protective cover 10. The protective cover 10 protects the second servo motor 203, preventing external debris from entering the second servo motor 203 and affecting its normal operation. The heat dissipation holes 11 on the protective cover 10 can dissipate the heat generated by the second servo motor 203 during operation in a timely manner, ensuring that the temperature of the second servo motor 203 is within the normal range.

[0033] Working Principle: This utility model provides a mixing mill for producing thermoplastic elastomers. When using this mixing mill, various materials required for producing thermoplastic elastomers are fed into the mixing frame 202. Two second servo motors 203 are started, driving the mixing shaft 204 to rotate. The mixing shaft 204 operates within the mixing frame 202 in different rotational modes, mixing the materials from multiple directions. Simultaneously, the resistance wire 205 is energized to generate heat, gradually raising the temperature of the materials until they reach a suitable plasticizing state. During the mixing and plasticizing process, the electric push rod 206 pushes the cap 207 down, completely covering the mixing frame 202. When the mixing shaft 204 mixes the materials, the interaction force between the materials and the guide plate 209 causes the mixture to... The rotating shaft 208, which is rotatably connected to the inner wall of the cap 207, rotates, causing multiple guide plates 209 fixed to the outer wall of the rotating shaft 208 to rotate together. Through the guide holes 210 on the guide plates 209, the material can be guided to flow along a specific path, changing the original flow direction and speed distribution of the material, further breaking down local unevenness in the material mixing process, and promoting more uniform mixing. When the material in the mixing frame 202 completes the thermoplastic process and reaches the predetermined quality standard, the electric push rod 206 drives the cap 207 to reset upwards to its initial position. Subsequently, the first servo motor 201 is started to drive the mixing frame 202 to tilt and rotate, smoothly pouring out the thermoplastic material. This achieves multi-directional and multi-level mixing of thermoplastic materials, improving the material mixing effect and product quality (e.g., Figure 2 and Figure 3 (As shown).

[0034] All technical features in this embodiment can be freely combined according to actual needs.

[0035] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A mixer for producing thermoplastic elastomers, comprising a base (1), characterized in that, The base (1) is provided with a mixing component (2) for thoroughly mixing and mixing the materials required for thermoplastics, and the base (1) is provided with a feeding component (3) for feeding the mixed materials in stages. The mixing assembly (2) includes a first servo motor (201) bolted to one side of the base (1). The output end of the first servo motor (201) is coaxially provided with a stirring frame (202). Two second servo motors (203) are bolted to one side of the stirring frame (202). The output ends of the two second servo motors (203) are coaxially provided with stirring shafts (204). The inner wall of the stirring frame (202) is provided with a resistance wire (205). The inner top wall of the base (1) is provided with an electric push rod (206). The output end of the electric push rod (206) is provided with a cap (207). The inner wall of the cap is rotatably connected with a rotating shaft (208). The outer wall of the rotating shaft (208) is fixedly connected with multiple guide plates (209). Multiple guide holes (210) are opened through one side of each of the multiple guide plates (209).

2. The internal mixer for producing thermoplastic elastomers according to claim 1, characterized in that, The feeding assembly (3) includes a feeding frame (301) fixedly connected to one side of the base (1). A feeding pipe (302) is provided at the bottom of the feeding frame (301). One end of the feeding pipe (302) away from the feeding frame (301) is provided on one side of the stirring frame (202). A solenoid valve (303) is provided on the inner wall of the feeding pipe (302). A controller (304) is provided on the inner bottom wall of the base (1). The solenoid valve (303) is electrically connected to the controller (304).

3. The internal mixer for producing thermoplastic elastomers according to claim 1, characterized in that, The base (1) has sliding grooves (4) extending through both sides facing each other, and the bottom of the stirring frame (202) is fixedly connected to a fixed shaft (5).

4. The internal mixer for producing thermoplastic elastomers according to claim 1, characterized in that, The top of the cap (207) is fixedly connected to two fixing posts (6), and both fixing posts (6) are slidably connected to the inside of the base (1).

5. A mixer for producing thermoplastic elastomers according to claim 1, characterized in that, A fixing plate (7) is fixedly connected to the inner wall of the base (1), and a clamp (8) is fixedly connected to one side of the fixing plate (7).

6. A mixer for producing thermoplastic elastomers according to claim 2, characterized in that, The inner wall of the feeding frame (301) is fixedly connected with a plurality of partitions (9), and the plurality of partitions (9) are evenly distributed along the length direction of the feeding frame (301).

7. A mixer for producing thermoplastic elastomers according to claim 1, characterized in that, A protective cover (10) is bolted to one side of the stirring frame (202), and a plurality of heat dissipation holes (11) are opened through one side of the protective cover (10).

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