Self-cooling double-screw extruder
By integrating heat dissipation, agitation and heating devices in the twin-screw extruder, the problems of rubber accumulation and solidification are solved, the loading efficiency and practicality of the device are improved, and efficient heat dissipation effect is achieved.
Patent Information
- Application Number
- CN202421336372.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-06-13
AI Technical Summary
Existing screw extruders are prone to accumulation and solidification of rubber materials when loading, affecting work efficiency and difficult to clean.
A self-cooling twin-screw extruder is designed, which uses a combination of a heat dissipation device, agitating device and heating device to remove heat through the circulating cooling tube, agitating blades to prevent the accumulation of rubber, and a heating tube to prevent the rubber from solidifying.
It effectively improves the feeding efficiency, avoids the coagulation and blocks the feeding port, enhances the practicality of the device, and improves the heat dissipation effect through circulating coolant.
Smart Images
Figure CN222628561U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screw extruders, in particular to a self-cooling twin-screw extruder. Background Art
[0002] Screw extruder is a machine that can integrate a series of basic chemical unit processes, such as solid conveying, pressurization, melting, exhaust, dehumidification, melt conveying and pumping. Twin-screw extruder mainly relies on the pressure and shear force generated by the rotation of two screws to fully plasticize and evenly mix the materials and form them through the die. Twin-screw extruders were originally produced in food and plastic processing, and their application scope has been continuously expanded in recent years. The twin-screw mechanism has obvious advantages over the single-screw mechanism in terms of strong conveying and mixing capabilities, good self-cleaning performance, high efficiency, and simpler structure than the multi-screw mechanism with three screws or more, so it is widely used.
[0003] The existing screw extruder heats and plasticizes the rubber through screw extrusion, shearing and stirring, and extrude it continuously from the die. However, when the screw extruder is feeding, especially when too much material is fed at one time, the rubber is easy to accumulate in the receiving port, which not only affects the feeding, but also once the rubber solidifies in the receiving port, it is not only difficult to clean, but also the screw extruder shutdown for cleaning also affects the work efficiency. Utility Model Content
[0004] The main purpose of the utility model is to provide a self-cooling twin-screw extruder, which can effectively solve the problems in the background technology.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A self-cooling twin-screw extruder comprises a fixed base, a heat dissipation device is fixedly installed on the right upper end of the fixed base, a plurality of support frames are fixedly installed on the middle upper end of the fixed base, a twin-screw extruder is fixedly installed on the upper ends of the plurality of support frames, a material receiving port is installed on the left upper end of the twin-screw extruder, a material storage box is fixedly installed on the upper end of the material receiving port, a stirring device is installed in the middle upper end of the material storage box, a fixed frame is fixedly installed on the rear end of the material storage box, and a heating device is fixedly installed in the middle right end of the fixed frame.
[0007] Preferably, the heat dissipation device comprises a coolant tank, a return pipe is fixedly installed in the middle of the right end of the coolant tank, a box cover is installed at the right upper end of the coolant tank, a pump body is installed at the left upper end of the coolant tank, an output pipe is installed at the upper end of the pump body, a circulating cooling pipe is installed together at the upper ends of the output pipe and the return pipe, the circulating cooling pipe is installed in the twin-screw extruder, and the coolant tank is installed at the upper right end of the fixed base. The pump body extracts the coolant in the coolant tank and transports it to the circulating cooling pipe through the output pipe. When the coolant passes through the circulating cooling pipe, it will take away the heat in the twin-screw extruder. In addition, a cooling device is also provided in the coolant tank, which can cool down the refluxed coolant to avoid too many cycles of the device, which will cause the coolant to be hot and affect the heat dissipation effect of the device.
[0008] Preferably, the stirring device comprises a motor, a stirring shaft is fixedly mounted on the output end of the motor, two stirring blades are fixedly mounted on the outer surface of the stirring shaft, and the motor is fixedly mounted in the middle of the upper end of the storage box. The stirring shaft is driven by the motor, and the stirring shaft in turn drives the stirring blades thereon to stir the rubber in the storage box, thereby preventing the rubber from accumulating in the storage box.
[0009] Preferably, the heating device comprises a support plate, a heater is fixedly mounted on the front of the upper end of the support plate, a heating pipe is mounted on the left end of the heater, and the support plate is fixedly mounted on the middle of the right end of the fixed frame. The heater drives the heating pipe to heat, and the heating pipe can heat the rubber in the storage box to prevent the rubber from cooling and solidifying and blocking the material receiving port.
[0010] Preferably, a plurality of the support frames are distributed on the fixed base at equal distances from left to right.
[0011] Preferably, the heating pipe is located in the material storage box, and there is a gap between the heating pipe and the stirring blades.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] 1. When the twin-screw extruder is working and needs to be fed, the rubber material is guided from the material receiving port to the twin-screw extruder through the material storage box. When feeding, the motor on the stirring device drives the stirring shaft, and the stirring shaft then drives the stirring blades thereon to stir the rubber material in the storage box to avoid the accumulation of the rubber material in the storage box, thereby improving the feeding effect of the device. In addition, the heater on the heating device drives the heating tube to heat, and the heating tube can heat the rubber material in the storage box to avoid the rubber material from cooling and solidifying and blocking the material receiving port, thereby improving the practicality of the device.
[0014] 2. When the twin-screw extruder is working and causes it to overheat, the coolant in the coolant tank is extracted through the pump body on the heat dissipation device and transported to the circulating cooling pipe through the output pipe. When the coolant passes through the circulating cooling pipe, it will take away the heat in the twin-screw extruder and return to the coolant tank through the reflux pipe, which can not only effectively improve the heat dissipation effect of the device, but also the coolant can be recycled. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall structure of a self-cooling twin-screw extruder of the utility model;
[0016] Figure 2 This is a schematic diagram of the overall structure of a heat dissipation device for a self-cooling twin-screw extruder of the utility model;
[0017] Figure 3 This is a schematic diagram of the overall structure of a stirring device of a self-cooling twin-screw extruder of the utility model;
[0018] Figure 4 The utility model is a schematic diagram of the overall structure of a heating device for a self-cooling twin-screw extruder.
[0019] In the figure: 1. fixed base; 2. heat dissipation device; 3. stirring device; 4. heating device; 5. support frame; 6. twin-screw extruder; 7. fixed frame; 8. material receiving port; 9. material storage box; 20. coolant tank; 21. box cover; 22. pump body; 23. output pipe; 24. circulating cooling pipe; 25. reflux pipe; 30. motor; 31. stirring shaft; 32. stirring blade; 40. support plate; 41. heater; 42. heating pipe. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] like Figure 1-4 As shown, a self-cooling twin-screw extruder comprises a fixed base 1, a heat dissipation device 2 is fixedly installed on the right upper end of the fixed base 1, a plurality of support frames 5 are fixedly installed on the middle upper end of the fixed base 1, a twin-screw extruder 6 is fixedly installed on the upper ends of the plurality of support frames 5, a material receiving port 8 is installed on the left upper end of the twin-screw extruder 6, a material storage box 9 is fixedly installed on the upper end of the material receiving port 8, a stirring device 3 is installed in the middle upper end of the material storage box 9, a fixed frame 7 is fixedly installed on the rear end of the material storage box 9, and a heating device 4 is fixedly installed in the middle right end of the fixed frame 7; the plurality of support frames 5 are equidistantly distributed on the fixed base 1 from left to right.
[0024] The heat dissipation device 2 includes a coolant tank 20, a return pipe 25 is fixedly installed in the middle of the right end of the coolant tank 20, a tank cover 21 is installed at the upper right part of the coolant tank 20, a pump body 22 is installed at the upper left part of the coolant tank 20, an output pipe 23 is installed at the upper end of the pump body 22, and a circulating cooling pipe 24 is installed at the upper ends of the output pipe 23 and the return pipe 25. The circulating cooling pipe 24 is installed in the twin-screw extruder 6, and the coolant tank 20 is installed at the upper right part of the fixed base 1. The pump body 22 extracts the coolant in the coolant tank 20 and transports it to the circulating cooling pipe 24 through the output pipe 23. When the coolant passes through the circulating cooling pipe 24, it will take away the heat in the twin-screw extruder 6. In addition, a cooling device is also provided in the coolant tank 20, which can cool down the refluxed coolant to avoid too many cycles of the device, resulting in hot coolant and affecting the heat dissipation effect of the device.
[0025] The stirring device 3 includes a motor 30, a stirring shaft 31 is fixedly mounted on the output end of the motor 30, two stirring blades 32 are fixedly mounted on the outer surface of the stirring shaft 31, and the motor 30 is fixedly mounted in the middle of the upper end of the storage box 9. The stirring shaft 31 is driven by the motor 30, and the stirring shaft 31 further drives the stirring blades 32 thereon to stir the rubber in the storage box 9 to prevent the rubber from accumulating in the storage box 9.
[0026] The heating device 4 includes a support plate 40, a heater 41 is fixedly mounted on the front of the upper end of the support plate 40, a heating pipe 42 is mounted on the left end of the heater 41, and the support plate 40 is fixedly mounted on the middle of the right end of the fixing frame 7; the heating pipe 42 is located in the material storage box 9, and there is a gap between the heating pipe 42 and the stirring blade 32. The heating pipe 42 is driven by the heater 41 to heat, and the heating pipe 42 can heat the rubber in the material storage box 9 to prevent the rubber from cooling and solidifying and blocking the material receiving port 8.
[0027] It should be noted that the utility model is a self-cooling twin-screw extruder. When the twin-screw extruder 6 is working and needs to be fed, the rubber material is led out from the material receiving port 8 to the twin-screw extruder 6 through the material storage box 9. When feeding, the motor 30 on the stirring device 3 drives the stirring shaft 31, and the stirring shaft 31 then drives the stirring blades 32 thereon to stir the rubber material in the storage box 9, thereby avoiding the accumulation of the rubber material in the storage box 9, thereby improving the feeding effect of the device. In addition, the heater 41 on the heating device 4 drives the heating tube 42 to Heating, the heating pipe 42 can heat the rubber material in the storage box 9 to prevent the rubber material from cooling and solidifying and clogging the material receiving port 8, thereby improving the practicability of the device, and the pump body 22 on the heat dissipation device 2 draws the coolant in the coolant tank 20 and transports it to the circulating cooling pipe 24 through the output pipe 23. When the coolant passes through the circulating cooling pipe 24, it will take away the heat in the twin-screw extruder 6 and return to the coolant tank 20 through the reflux pipe 25, which can not only effectively improve the heat dissipation effect of the device, but also the coolant can be recycled.
[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A self-cooling twin-screw extruder, comprising a fixed base (1), characterized in that: A heat dissipation device (2) is fixedly installed on the right upper part of the fixed base (1), a plurality of support frames (5) are fixedly installed on the middle upper part of the fixed base (1), a twin-screw extruder (6) is fixedly installed on the upper ends of the plurality of support frames (5), a material receiving port (8) is installed on the left upper end of the twin-screw extruder (6), a material storage box (9) is fixedly installed on the upper end of the material receiving port (8), a stirring device (3) is installed on the middle upper end of the material storage box (9), a fixed frame (7) is fixedly installed on the rear end of the material storage box (9), and a heating device (4) is fixedly installed on the middle right end of the fixed frame (7).
2. A self-cooling twin-screw extruder according to claim 1, characterized in that: The heat dissipation device (2) comprises a coolant tank (20), a return pipe (25) is fixedly installed in the middle of the right end of the coolant tank (20), a tank cover (21) is installed at the upper right part of the coolant tank (20), a pump body (22) is installed at the upper left part of the coolant tank (20), an output pipe (23) is installed at the upper end of the pump body (22), a circulating cooling pipe (24) is installed at the upper ends of the output pipe (23) and the return pipe (25), and the circulating cooling pipe (24) is installed in the twin-screw extruder (6), and the coolant tank (20) is installed at the upper right part of the fixed base (1).
3. A self-cooling twin-screw extruder according to claim 1, characterized in that: The stirring device (3) comprises a motor (30), a stirring shaft (31) is fixedly mounted on the output end of the motor (30), two stirring blades (32) are fixedly mounted on the outer surface of the stirring shaft (31), and the motor (30) is fixedly mounted in the middle of the upper end of the material storage box (9).
4. A self-cooling twin-screw extruder according to claim 3, characterized in that: The heating device (4) comprises a support plate (40), a heater (41) is fixedly mounted on the front portion of the upper end of the support plate (40), a heating tube (42) is mounted on the left end of the heater (41), and the support plate (40) is fixedly mounted on the middle portion of the right end of the fixing frame (7).
5. A self-cooling twin-screw extruder according to claim 1, characterized in that: A plurality of support frames (5) are distributed on the fixed base (1) at equal distances from left to right.
6. A self-cooling twin-screw extruder according to claim 4, characterized in that: The heating pipe (42) is located in the material storage box (9), and there is a gap between the heating pipe (42) and the stirring blade (32).