Mixing extruder with temperature control structure

Abstract

The utility model relates to the technical field of mixing extruders, in particular to a mixing extruder with a temperature control structure, which comprises an equipment base, an extruder shell is fixed on the upper surface of the equipment base through bolts, and a cooling mechanism for cooling materials is arranged on the left side of the extruder shell. A cooling mechanism used for cooling the cooling liquid is arranged in the cooling mechanism, and a conveying mechanism used for conveying materials is arranged in the extruder shell; and the cooling mechanism comprises an extrusion part, the extrusion part is connected to the left side of the extruder shell, a water storage tank fixedly connected with the equipment base is arranged below the extrusion part, and a conveying pump is fixed to the upper surface of the water storage tank. And through the arranged cooling mechanism, heat exchange liquid in the water storage tank can be pumped out and conveyed into the flowing cavity, heat is absorbed by the extrusion part when raw materials pass through the extrusion cavity, the raw materials are indirectly cooled, the forming efficiency of the raw materials is guaranteed, and the temperature control effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of compounding extruder technology, and in particular to a compounding extruder with a temperature control structure. Background Technology

[0002] A compounding extruder is a polymer material processing equipment that combines compounding and extrusion functions, widely used in plastics, rubber, and chemical industries. Its core advantage lies in its specially designed screw structure and temperature control system, which enables efficient compounding and uniform extrusion of materials, significantly improving product quality and production efficiency. The compounding extruder applies shearing, stretching, and folding forces to the material through the rotation and axial reciprocating motion of the screw, while simultaneously controlling the temperature through a heating / cooling system, ensuring uniform compounding of the material in a molten state.

[0003] Existing compounding extruders typically only have the function of mixing raw materials, which is limited to a single function. In the production process, it is often necessary to add a certain proportion of graft material to the raw materials.

[0004] An existing patent (publication number: CN210880807U) discloses a compounding extruder, which includes a horizontally arranged extrusion cylinder. Inside the extrusion cylinder, a pair of meshing and co-rotating twin screws are arranged along the axial direction of the cylinder. The twin screws include, from front to back, a mixing zone for mixing multiple raw materials and a compounding zone for fusing the multiple raw materials. A feeding port is provided at the front end of the mixing zone, and a crosslinking agent tank for adding crosslinking agent is connected to the front end of the compounding zone. The crosslinking agent tank is equipped with a metering pump for controlling the flow rate of the added crosslinking agent. By functionally segmenting the twin screws, the input raw materials can achieve the desired effect in different functional segments. Through thorough mixing in the mixing zone, and then through the crosslinking agent added in the compounding zone, the raw materials are more fully bonded into the desired polymer, improving production efficiency. Furthermore, the metering pump can control the amount of crosslinking agent added, promoting a higher degree of crosslinking between raw materials, enabling more precise control of product accuracy and resulting in better product quality.

[0005] To address the aforementioned issues, existing patents offer solutions that, by functionally segmenting the twin-screw extruder, allow the input raw materials to achieve the desired effects within different functional segments and achieve thorough mixing in the mixing zone. However, during extrusion, it is inconvenient to cool the raw materials, resulting in ineffective shaping of the extruded materials and causing deformation, thus limiting their practicality. Summary of the Invention

[0006] The purpose of this invention is to provide a mixing extruder with a temperature control structure. Through a cooling mechanism, the heat exchange liquid in the water tank can be extracted and transported to the flow chamber. When the raw material passes through the extrusion chamber, the heat is absorbed by the extruded part, which indirectly cools the raw material, ensures the molding efficiency of the raw material, and achieves the function of temperature control, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a mixing extruder with a temperature control structure, comprising an equipment base, an extruder housing fixed to the upper surface of the equipment base by bolts, a cooling mechanism for cooling materials provided on the left side of the extruder housing, a cooling mechanism for cooling the coolant inside the cooling mechanism, and a conveying mechanism for conveying materials inside the extruder housing;

[0008] The cooling mechanism includes an extruder connected to the left side of the extruder housing. A water storage tank fixedly connected to the equipment base is provided below the extruder. A delivery pump is fixed on the upper surface of the water storage tank. The input end of the delivery pump is connected to a connecting pipe that is interconnected with the water storage tank. The output end of the delivery pump is connected to a connector. A heat-conducting pipe is connected to the upper surface of the connector.

[0009] Preferably, the end of the heat-conducting pipe is connected to a delivery pipe, and the end of the delivery pipe is connected to a flow cavity opened inside the extruder, and the flow cavity is connected to a water storage tank through a pipe.

[0010] Preferably, the inner wall of the extruder has an extrusion cavity, and the upper surface of the extruder housing is connected to a feed inlet.

[0011] Preferably, the cooling mechanism includes a water wheel, which is rotatably connected inside the connector via a bearing.

[0012] Preferably, a fixed shaft is fixed to the upper surface of the water turbine, and wind turbine blades are fixed to the end of the fixed shaft.

[0013] Preferably, the conveying mechanism includes a drive motor, which is fixed to one end of the extruder housing by bolts, and the power output shaft of the drive motor is fixed with a mounting rod.

[0014] Preferably, the outer surface of the mounting rod is fixed with a spiral blade that fits tightly against the inner wall of the extruder housing, and the other end of the extruder housing is provided with a discharge port that communicates with the extrusion chamber.

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

[0016] 1. The cooling mechanism can extract the heat exchange fluid from the water tank and transport it to the flow chamber. When the raw material passes through the extrusion chamber, the heat is absorbed by the extruder, which indirectly cools the raw material, ensures the molding efficiency of the raw material, and achieves the function of temperature control. Since the heat exchange fluid has a certain pressure when it is transported by the pump, it will drive the water wheel of the connecting part to rotate. Under the action of the fixed shaft, it will drive the fan blades to rotate, which can blow air to the heat pipe to dissipate heat, thereby indirectly dissipating heat from the heat exchange fluid.

[0017] 2. Through the set conveying mechanism, the drive motor drives the mounting rod to rotate, which in turn drives the spiral blade to run, conveying the raw material. The continuously conveyed raw material can enter the extruder through the discharge port, and be extruded and formed through the extrusion cavity inside the extruder. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an overall structural view of the present invention;

[0020] Figure 2 This is a half-sectional structural diagram of the extruder housing of this utility model;

[0021] Figure 3 This is a half-sectional structural diagram of the extruded part of this utility model;

[0022] Figure 4 This is a half-sectional structural diagram of the connector of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Equipment base; 2. Extruder housing; 3. Extruded part; 31. Water tank; 32. Conveying pump; 33. Connecting pipe; 34. Connecting part; 35. Heat conduction pipe; 36. Conveying pipe; 37. Flow chamber; 4. Extrusion chamber; 5. Water wheel; 51. Fixed shaft; 52. Wind turbine blade; 6. Feed inlet; 7. Drive motor; 71. Mounting rod; 72. Spiral blade; 73. Discharge port. Detailed Implementation

[0025] 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.

[0026] This utility model provides a technical solution:

[0027] Please see Figures 1 to 4A mixing extruder with a temperature control structure includes an equipment base 1, an extruder housing 2 fixed to the upper surface of the equipment base 1 by bolts, a cooling mechanism for cooling materials is provided on the left side of the extruder housing 2, a cooling mechanism for cooling the coolant is provided inside the cooling mechanism, and a conveying mechanism for conveying materials is provided inside the extruder housing 2.

[0028] The cooling mechanism includes an extruder 3, which is connected to the left side of the extruder housing 2. A water storage tank 31, which is fixedly connected to the equipment base 1, is located below the extruder 3. A delivery pump 32 is fixed on the upper surface of the water storage tank 31. The input end of the delivery pump 32 is connected to a connecting pipe 33, which is connected to the water storage tank 31. The output end of the delivery pump 32 is connected to a connector 34. A heat conduction pipe 35 is connected to the upper surface of the connector 34. A delivery pipe 36 is connected to the end of the heat conduction pipe 35. A flow cavity 37, which is opened inside the extruder 3, is connected to the water storage tank 31 through a pipe. An extrusion cavity 4 is opened on the inner wall of the extruder 3. A feed inlet 6 is connected to the upper surface of the extruder housing 2.

[0029] By adopting the above technical solution, before using the mixing extruder with temperature control structure, the equipment base 1 is first placed in a suitable position to ensure the stability of the extruder. The raw material can be fed into the extruder housing 2 through the feed port 6 provided on the extruder housing 2. A heating pipe can be installed inside the extruder housing 2 to provide auxiliary heating for the raw material and ensure the conveying effect of the raw material. When the raw material is being formed, the heat exchange liquid in the water storage tank 31 can be extracted by the conveying pump 32 provided on the water storage tank 31 with the cooperation of the connecting pipe 33, and then conveyed to the connecting part 34. It then enters the conveying pipe 36 through the heat conduction pipe 35 and flows into the flow chamber 37. Since the heat of the raw material can be absorbed by the extruder 3 when it enters the extrusion chamber 4, the heat exchange liquid can absorb the heat of the extruder 3 after entering the flow chamber 37, thereby indirectly cooling the raw material, ensuring the forming efficiency of the raw material, and achieving the function of temperature control. The heat exchange liquid continuously entering the flow chamber 37 can flow back into the water storage tank 31 through the pipe on the other side for recycling.

[0030] Specifically, such as Figure 1 , Figure 2 and Figure 4As shown, the cooling mechanism includes a water wheel 5, which is rotatably connected to the inside of the connector 34 via a bearing. A fixed shaft 51 is fixed on the upper surface of the water wheel 5, and a fan blade 52 is fixed at the end of the fixed shaft 51. The conveying mechanism includes a drive motor 7, which is fixed to one end of the extruder housing 2 by bolts. A mounting rod 71 is fixed to the power output shaft of the drive motor 7. A spiral blade 72 that fits tightly against the inner wall of the extruder housing 2 is fixed on the outer surface of the mounting rod 71. The other end of the extruder housing 2 is provided with a discharge port 73 that communicates with the extrusion chamber 4.

[0031] By adopting the above technical solution, the drive motor 7 drives the mounting rod 71 to rotate, which in turn drives the spiral blade 72 to run, conveying the raw material. The continuously conveyed raw material can enter the extruder 3 through the discharge port 73 and be extruded and formed through the extrusion chamber 4 in the extruder 3. When the heat exchange liquid is circulating, the heat exchange liquid has a certain pressure when it is conveyed by the conveying pump 32, which will drive the water wheel 5 of the connecting part 34 to rotate. Under the action of the fixed shaft 51, the fan blade 52 is driven to rotate, which can blow air to the heat pipe 35 to dissipate heat, thereby indirectly dissipating heat from the heat exchange liquid and ensuring the effectiveness of the heat exchange liquid.

[0032] Working principle: Raw materials can be fed into the extruder housing 2 through the feed port 6. A heating tube can be installed inside the extruder housing 2 to provide auxiliary heating for the raw materials. The drive motor 7 drives the mounting rod 71 to rotate, which in turn drives the spiral blades 72 to transport the raw materials. The continuously transported raw materials enter the extruder 3 through the discharge port 73, where they are extruded and formed through the extrusion chamber 4. During the forming process, the heat exchange liquid in the water tank 31 is drawn out by the delivery pump 32 on the water tank 31 in cooperation with the connecting pipe 33, and then transported to the connecting member 34, and then enters the delivery pipe 36 through the heat conduction pipe 35. The heat is then drawn into the flow chamber 37. As the raw material passes through the extrusion chamber 4, the heat is absorbed by the extruder 3. This allows the heat exchange fluid to absorb the heat from the extruder 3 after entering the flow chamber 37, thereby indirectly cooling the raw material and ensuring its molding efficiency. This achieves temperature control. The heat exchange fluid continuously entering the flow chamber 37 can then flow back into the water storage tank 31 through the pipe on the other side for recycling. During circulation, the heat exchange fluid is under pressure from the pump 32, which drives the water wheel 5 of the connector 34 to rotate. Under the action of the fixed shaft 51, the fan blades 52 rotate, which blows air onto the heat pipe 35 to dissipate heat and indirectly cool the heat exchange fluid.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A mixing extruder with a temperature control structure, comprising a base (1), characterized in that: The upper surface of the equipment base (1) is fixed with an extruder housing (2) by bolts. The left side of the extruder housing (2) is provided with a cooling mechanism for cooling the material. The interior of the cooling mechanism is provided with a cooling mechanism for cooling the coolant. The interior of the extruder housing (2) is provided with a conveying mechanism for conveying the material. The cooling mechanism includes an extruder (3), which is connected to the left side of the extruder housing (2). A water storage tank (31) is fixedly connected to the equipment base (1) below the extruder (3). A delivery pump (32) is fixed on the upper surface of the water storage tank (31). The input end of the delivery pump (32) is connected to a connecting pipe (33) that is connected to the water storage tank (31). The output end of the delivery pump (32) is connected to a connector (34). A heat conduction pipe (35) is connected to the upper surface of the connector (34).

2. The mixing extruder with a temperature control structure according to claim 1, characterized in that: The end of the heat pipe (35) is connected to a delivery pipe (36), and the end of the delivery pipe (36) is connected to a flow cavity (37) opened inside the extruder (3). The flow cavity (37) is connected to the water storage tank (31) through a pipe.

3. A mixing extruder with a temperature control structure according to claim 2, characterized in that: The inner wall of the extruder (3) is provided with an extrusion cavity (4), and the upper surface of the extruder housing (2) is connected to a feed inlet (6).

4. A mixing extruder with a temperature control structure according to claim 1, characterized in that: The cooling mechanism includes a water wheel (5), which is rotatably connected inside the connector (34) via a bearing.

5. A mixing extruder with a temperature control structure according to claim 4, characterized in that: The upper surface of the water turbine (5) is fixed with a fixed shaft (51), and the end of the fixed shaft (51) is fixed with a wind turbine blade (52).

6. A mixing extruder with a temperature control structure according to claim 5, characterized in that: The conveying mechanism includes a drive motor (7), which is fixed to one end of the extruder housing (2) by bolts, and the power output shaft of the drive motor (7) is fixed with a mounting rod (71).

7. A mixing extruder with a temperature control structure according to claim 6, characterized in that: The outer surface of the mounting rod (71) is fixed with a spiral blade (72) that fits tightly against the inner wall of the extruder housing (2), and the other end of the extruder housing (2) is provided with a discharge port (73) that communicates with the extrusion chamber (4).

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