Temperature control system for extruder body

Abstract

The utility model relates to an extruder body temperature control system which comprises a machine barrel with an extrusion cavity, a material barrel and a rack, the material barrel is fixedly connected to the machine barrel, the machine barrel is fixedly connected to the rack, a plurality of heaters are arranged on the machine barrel, the extruder body temperature control system further comprises a temperature control mechanism, and the temperature control mechanism comprises a first hot water pipe and a water pump. The first hot water pipe is evenly wound on the circumferential surface of the machine barrel along the machine barrel, the outer wall of the first hot water pipe abuts against the multiple heaters, the water pump is fixedly connected to the rack, and the water pump communicates with the first hot water pipe to enable water flow to flow in the first hot water pipe. Water flow in the first hot water pipe is heated through the heater, hot water circularly flows through the water pump, through heat conduction between the first heating pipe and the machine barrel, the temperature of all sections in the length direction of the extrusion cavity is kept uniform, and the possibility that the temperature in the extrusion cavity is not uniform and changes too much is reduced; therefore, the possibility that the performance of the extruded plastic is influenced due to the temperature is reduced.

Description

Technical Field

[0001] The utility model relates to the field of extruders, in particular to a temperature control system for an extruder body. Background Art

[0002] The three-layer co-extrusion extruder is a plastic processing equipment used to produce multi-layer composite materials. Its working principle is to use three extruders of different colors to extrude the plastic raw materials of the inner layer, middle layer and outer layer respectively, and then merge them together in a specific way to form a structure containing three layers. This process involves multiple components, including extruder heads, extruders, coolers, stretching mechanisms and winding mechanisms. The application of three-layer co-extrusion extruders is very wide. It can be used in many industries such as plastic packaging, building materials, and automotive parts to manufacture products such as food preservative film, building insulation panels, automotive interior panels, and household appliance housings. In addition, three-layer co-extrusion technology is also commonly used in the production of wires or cables to ensure the close combination of the insulation layer and the conductor of the wire, slow down the aging rate, and improve electrical performance.

[0003] The utility model with publication number CN216329976U relates to an extruder, comprising a driving mechanism, a barrel, a screw and a hopper; a feed port is provided at one end of the barrel, a discharge port is provided at the other end, and the hopper is arranged at the feed port; the screw is arranged in the barrel, and one end of the screw extends to the outside of the barrel and is connected to the driving mechanism through a coupling; a plurality of heating mechanisms are provided on the barrel, and the heating mechanism comprises a heating plate, an outer shell, an air duct and an exhaust fan, the outer shell is sleeved on the surface of the barrel, and a closed heating space is formed between the inner wall of the outer shell and the outer wall of the barrel, the heating plate is arranged in the heating space, and an air port connected to the heating space is provided on the outer shell, one end of the air duct is connected to the air port, and the other end is connected to the exhaust fan.

[0004] The extruder in the above technical solution has gaps between its multiple heating mechanisms. When in use, the gaps between the multiple heating mechanism components can easily lead to significant temperature changes in each section along the length direction of the extrusion chamber of the extruder, which may lead to the possibility of uneven heating of the material. Utility Model Content

[0005] In order to reduce the possibility of significant temperature changes in the extrusion chamber of the extruder, the present application provides an extruder body temperature control system.

[0006] The present application provides an extruder body temperature control system that adopts the following technical solution:

[0007] A temperature control system for an extruder body comprises a barrel with an extrusion cavity, a hopper and a frame, the hopper is fixedly connected to the barrel, the barrel is fixedly connected to the frame, a plurality of heaters are arranged on the barrel, and a temperature control mechanism is also included, the temperature control mechanism comprises a first heating tube and a water pump, the first heating tube is evenly wound around the circumferential surface of the barrel along the barrel, the outer wall of the first heating tube is respectively in contact with the plurality of heaters, the water pump is fixedly connected to the frame, and the water pump is connected to the first heating tube so that water flows in the first heating tube.

[0008] By adopting the above technical solution, the water flow in the first heating tube is heated by a heater, and the water pump circulates the hot water. Through heat conduction between the first heating tube and the barrel, the temperature of each section in the length direction of the extrusion cavity is kept uniform, thereby reducing the possibility of excessive uneven temperature changes in the extrusion cavity, thereby reducing the possibility of affecting the performance of the extruded plastic due to temperature reasons.

[0009] Preferably, the temperature control mechanism also includes a second heating tube and a heating assembly, the second heating tube is wound on the barrel, one end of the second heating tube is connected to the first heating tube, and the other end of the second heating tube is connected to a water pump, and the heating assembly is used to heat the water flowing through the second heating tube.

[0010] By adopting the above technical solution, the raw materials in the barrel are preheated by the heating component, thereby reducing the heating time of the raw materials after entering the extrusion cavity, and reducing the possibility of blockage of the raw materials in the barrel when entering the extrusion cavity; the hot water heated in the second heating tube flows into the first tube, the extrusion cavity is kept at a constant temperature, and the possibility of significant temperature changes in the extruder cavity is reduced.

[0011] Preferably, the heating assembly comprises a heating frame and a plurality of heating wires, the heating frame is sleeved on the outside of the barrel, the plurality of heating wires are evenly distributed along the inner wall of the heating frame, and the plurality of heating wires abut against the inner wall of the second heating tube.

[0012] By adopting the above technical solution, the heating wire on the heating rack is energized to generate heat to conduct heat with the second heating tube, thereby heating the water flow in the second heating tube.

[0013] Preferably, the temperature control mechanism also includes a third heating tube, a water inlet valve, a water outlet valve and a water adding valve, the two ends of the third heating tube are detachably connected to the first heating tube and the second heating tube respectively, the water inlet valve is fixedly connected to the third heating tube and is connected to the water outlet of the third heating tube and the water pump, the water outlet valve is fixedly connected to the third heating tube and is connected to the water inlet of the third heating tube and the water pump, and the water adding valve is fixedly connected to the third heating tube and is connected to the third heating tube.

[0014] By adopting the above technical solution, the water circuit is closed and circulated through the third heating pipe, and water can be added through the water adding valve.

[0015] Preferably, it also includes a connecting mechanism, which is used for connecting the third heating tube, and the connecting mechanism includes a limit block and a driving member. One end of the third heating tube is coaxially and fixedly connected with a plurality of blocks, and the plurality of blocks are evenly distributed along the axial direction of the third heating tube. Limiting grooves are formed between the plurality of blocks. The limit block is slidably connected to the other end of the third heating tube along a direction perpendicular to the axial direction of the third heating tube, and the driving member is used to drive the sliding of the limit block. The first heating tube and the second heating tube are provided with the same connecting mechanism at both ends. When the two heating tubes are connected, the limit block on one of the heating tubes cooperates with the limit groove on the other heating tube.

[0016] By adopting the above technical solution, taking the connection between the first heating tube and the third heating tube as an example, the third heating tube and the first heating tube are connected by inserting multiple blocking blocks on the third heating tube into the first heating tube at the same time, and then the limiting block on the first heating tube is driven by the driving member to cooperate with the limiting groove on the third heating tube to limit the connection between the third heating tube and the first heating tube, thereby completing the connection between the two heating tubes.

[0017] Preferably, the driving member includes a sliding rod, a force block and a spring, one end of the sliding rod is fixedly connected to the limit block, the other end of the sliding rod is passed through the third heating tube to the outside, the force block is fixedly connected to the end of the sliding rod located at the outside, the spring is sleeved on the sliding rod, and the spring always drives the limit block to slide toward the central axis of the third heating tube.

[0018] By adopting the above technical solution, force is applied through the force block, the sliding rod is pulled to slide toward the side away from the central axis of the third heating tube, and the spring is compressed. When the two heating tubes are connected, the force block is released, the spring returns to its original state, and the spring drives the limit block to slide toward the side of the limit groove of the other heating tube, and the limit blocks cooperate with each other.

[0019] Preferably, the plurality of blocking blocks are arranged in a tapered shape from one end close to the third heating pipe to one end away from the third heat pipe.

[0020] By adopting the above technical solution, the connection of two heating tubes is facilitated. During the connection process of the blocking block on one heating tube to the other heating tube, the inclined surface on the blocking block plays a guiding role, so that the limit block slides toward the side away from the first heating channel and compresses the spring. When the limit block is facing the limit groove, the spring restores its shape, so that the limit block slides toward one side of the limit groove and cooperates.

[0021] The technical effects of this utility model are mainly reflected in the following aspects:

[0022] 1. The utility model sets a first heating tube, heats the water flow in the first heating tube by a heater, and circulates the hot water by a water pump. Through the heat conduction between the first heating tube and the barrel, the temperature of each section in the length direction of the extrusion cavity is kept uniform, reducing the possibility of excessive uneven temperature changes in the extrusion cavity, thereby reducing the possibility of affecting the performance of the extruded plastic due to temperature reasons;

[0023] 2. The utility model preheats the raw materials in the barrel through the heating assembly by setting a second heating tube, thereby reducing the heating time of the raw materials after entering the extrusion cavity and reducing the possibility of blockage when the raw materials in the barrel enter the extrusion cavity; the hot water heated in the second heating tube flows into the first tube to keep the extrusion cavity at a constant temperature, thereby reducing the possibility of significant temperature changes in the extrusion cavity of the extruder;

[0024] 3. The utility model provides a third heating pipe, through which the water circuit is closed and circulated, and water can be added through a water adding valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0026] Figure 2 It is a schematic diagram of the structure of the temperature control mechanism of the embodiment of the present application.

[0027] Figure 3 is along Figure 2 Enlarged view of point A in the middle.

[0028] Figure 4 It is a schematic diagram of the connection structure of an embodiment of the present application.

[0029] Figure 5 It is a schematic diagram of the structure of the heating component of an embodiment of the present application.

[0030] Explanation of the reference numerals: 1. frame; 11. barrel; 12. barrel; 13. heater; 2. temperature control mechanism; 21. first heating tube; 22. second heating tube; 23. third heating tube; 24. heating assembly; 241. heating frame; 242. heating wire; 25. water pump; 26. water inlet valve; 27. water outlet valve; 28. water filling valve; 3. connecting mechanism; 31. blocking block; 311. limiting groove; 32. limiting block; 33. driving member; 331. sliding rod; 332. force block; 333. spring. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-5 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0032] The embodiment of the present application discloses a temperature control system for an extruder body.

[0033] Reference Figure 1 and Figure 2 The extruder body temperature control system of this embodiment includes a barrel 11 with an extrusion cavity, a barrel 12 and a frame 1, the hopper is fixedly connected to the barrel 11, the barrel 11 is fixedly connected to the frame 1, and a plurality of heaters 13 are fixed on the outer wall of the barrel 11, and the plurality of heaters are evenly distributed along the length direction of the barrel 11.

[0034] Reference Figure 1-Figure 3 , also includes a temperature control mechanism 2, the temperature control mechanism 2 includes a first heating tube 21, a second heating tube 22, a third heating tube 23 and a heating assembly 24, the first heating tube 21 is evenly wound on the circumferential surface of the barrel 11 along the barrel 11, the outer walls of the first heating tube 21 are respectively abutted against multiple heaters 13, the second heating tube 22 is wound on the barrel 12, one end of the second heating tube 22 is connected to the first heating tube 21, both ends of the third heating tube 23 are respectively detachably connected to the first heating tube 21 and the second heating tube 22, and the heating assembly 24 is used to heat the water flowing through the second heating tube 22.

[0035] Reference Figure 1-Figure 3 , further comprising a water pump 25, a water inlet valve 26, a water outlet valve 27 and a water adding valve 28, the water pump 25 is fixedly connected to the frame 1, the water inlet valve 26 is fixedly connected to the third heating pipe 23 and the third heating pipe 23 and the water outlet of the water pump 25 are connected, the water outlet valve 27 is fixedly connected to the third heating pipe 23 and the third heating pipe 23 and the water inlet of the water pump 25 are connected, and the water adding valve 28 is fixedly connected to the third heating pipe 23 and the third heating pipe 23 and the water inlet of the water pump 25 are connected. The water circuit is closed and circulated through the third heating pipe 23, and water can be added through the water adding valve 28.

[0036] Reference Figure 1 and Figure 2 The water flow in the first heating tube 21 is heated by the heater 13, and the water pump 25 circulates the hot water. Through the heat conduction between the first heating tube 21 and the barrel 11, the temperature of each section in the length direction of the extrusion cavity is kept uniform, reducing the possibility of excessive uneven temperature changes in the extrusion cavity, thereby reducing the possibility of affecting the performance of the extruded plastic due to temperature reasons.

[0037] Reference Figure 1 and Figure 2 The raw materials in the barrel 12 are preheated by the heating component 24 to reduce the heating time of the raw materials after entering the extrusion cavity, and reduce the possibility of blockage of the raw materials in the barrel 12 when entering the extrusion cavity; the hot water heated in the second heating tube 22 flows into the first tube to keep the extrusion cavity at a constant temperature, thereby reducing the possibility of significant temperature changes in the extrusion cavity of the extruder.

[0038] Reference Figure 1 , Figure 2 and Figure 5 The heating assembly 24 includes a heating frame 241 and a plurality of heating wires 242. The heating frame 241 is sleeved on the outside of the barrel 12. The plurality of heating wires 242 are evenly distributed along the inner wall of the heating frame 241. The plurality of heating wires 242 abut against the inner wall of the second heating tube 22. By energizing the heating wires 242 on the heating frame 241, the heating wires 242 generate heat and conduct heat to the second heating tube 22, thereby heating the water flow in the second heating tube 22.

[0039] Reference Figure 1-Figure 4 , and further includes a connecting mechanism 3, which is used to connect the third heating tube 23 with the first heating tube 21 and the second heating tube 22. The connecting mechanism 3 includes a stopper 32 and a driving member 33. Taking the third heating tube 23 as an example, one end of the third heating tube 23 is coaxially and fixedly connected with a plurality of stoppers 31, and the plurality of stoppers 31 are evenly distributed along the axis direction of the third heating tube 23. The plurality of stoppers 31 are arranged in a tapered shape from one end close to the third heating tube 23 to the end away from the third heating tube. A stopper groove 311 is formed between the plurality of stoppers 31, and the stopper block 32 is slidably connected to the other end of the third heating tube 23 along a direction perpendicular to the axis direction of the third heating tube 23. The driving member 33 is used to drive the stopper block 32 to slide. The same connecting mechanism 3 is provided at both ends of the first heating tube 21 and the second heating tube 22. When the two heating tubes are connected, the stopper block 32 on one heating tube matches the stopper groove 311 on the other heating tube.

[0040] Reference Figure 1-Figure 5 Taking the connection between the first heating tube 21 and the third heating tube 23 as an example, the third heating tube 23 is connected to the first heating tube 21 by inserting multiple blocking blocks 31 on the third heating tube 23 into the first heating tube 21 at the same time, and then the limiting block 32 on the first heating tube 21 is driven by the driving member 33 to cooperate with the limiting groove 311 on the third heating tube 23 to limit the connection between the third heating tube 23 and the first heating tube 21, thereby completing the connection between the two heating tubes.

[0041] Reference Figure 1-Figure 5The driving member 33 includes a slide bar 331, a force block 332 and a spring 333. One end of the slide bar 331 is fixedly connected to the limit block 32, and the other end of the slide bar 331 passes through the third heating tube 23 to the outside. The force block 332 is fixedly connected to the end of the slide bar 331 located at the outside. The spring 333 is sleeved on the slide bar 331. The two ends of the spring 333 are respectively in contact with the inner wall of the third heating tube 23 and the limit block 32. The spring 333 always drives the limit block 32 to slide toward the central axis of the third heating tube 23. The force is applied by the force block 332, and the slide bar 331 is pulled to slide toward the side away from the central axis of the third heating tube 23, and the spring 333 is compressed. When the two heating tubes are connected, the force block 332 is released, and the spring 333 returns to its original state, so that the spring 333 drives the limit block 32 to slide toward the limit groove 311 of the other heating tube, and the limit block 32 is matched with the limit block 32. During the connection process of the blocking block 31 on one of the heating tubes to the other heating tube, the inclined surface on the blocking block 31 plays a guiding role, causing the limit block 32 to slide toward the side away from the first heating channel and compress the spring 333. When the limit block 32 is facing the limit groove 311, the spring 333 restores its shape, causing the limit block 32 to slide toward the side of the limit groove 311 and cooperate.

[0042] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. An extruder body temperature control system, comprising a barrel (11) with an extrusion cavity, a barrel (12) and a frame (1), wherein the barrel (12) is fixedly connected to the barrel (11), the barrel (11) is fixedly connected to the frame (1), and a plurality of heaters (13) are provided on the barrel (11), characterized in that: The machine also includes a temperature control mechanism (2), wherein the temperature control mechanism (2) includes a first heating tube (21) and a water pump (25), wherein the first heating tube (21) is evenly wound along the barrel (11) on the circumferential surface of the barrel (11), and the outer wall of the first heating tube (21) is respectively in contact with a plurality of heaters (13), and the water pump (25) is fixedly connected to the frame (1), and the water pump (25) is connected to the first heating tube (21) so that water flows in the first heating tube (21).

2. The extruder body temperature control system according to claim 1, characterized in that: The temperature control mechanism (2) further comprises a second heating tube (22) and a heating assembly (24); the second heating tube (22) is wound on the barrel (12); one end of the second heating tube (22) is connected to the first heating tube (21); the other end of the second heating tube (22) is connected to a water pump (25); and the heating assembly (24) is used to heat water flowing through the second heating tube (22).

3. The extruder body temperature control system according to claim 2, characterized in that: The heating component (24) comprises a heating frame (241) and a plurality of electric heating wires (242); the heating frame (241) is sleeved on the outside of the barrel (12); the plurality of electric heating wires (242) are evenly distributed along the inner wall of the heating frame (241); and the plurality of electric heating wires (242) are in contact with the inner wall of the second heating tube (22).

4. The extruder body temperature control system according to claim 2, characterized in that: The temperature control mechanism (2) further comprises a third heating tube (23), a water inlet valve (26), a water outlet valve (27) and a water adding valve (28); the two ends of the third heating tube (23) are respectively detachably connected to the first heating tube (21) and the second heating tube (22); the water inlet valve (26) is fixedly connected to the third heating tube (23) and is in communication with the water outlet of the third heating tube (23) and the water pump (25); the water outlet valve (27) is fixedly connected to the third heating tube (23) and is in communication with the water inlet of the third heating tube (23) and the water pump (25); and the water adding valve (28) is fixedly connected to the third heating tube (23) and is in communication with the third heating tube (23).

5. The extruder body temperature control system according to claim 4, characterized in that: The invention also comprises a connecting mechanism (3), wherein the connecting mechanism (3) is used for connecting the third heating tube (23), and the connecting mechanism (3) comprises a limit block (32) and a driving member (33). One end of the third heating tube (23) is coaxially and fixedly connected with a plurality of block blocks (31). The plurality of block blocks (31) are evenly distributed along the axial direction of the third heating tube (23), and limit grooves (311) are formed between the plurality of block blocks (31). The limit block (32) is slidably connected to the other end of the third heating tube (23) along a direction perpendicular to the axial direction of the third heating tube (23), and the driving member (33) is used to drive the limit block (32) to slide. The first heating tube (21) and the second heating tube (22) are provided with the same connecting mechanism (3) at both ends. When the two heating tubes are connected, the limit block (32) on one heating tube matches the limit groove (311) on the other heating tube.

6. The extruder body temperature control system according to claim 5, characterized in that: The driving member (33) comprises a sliding rod (331), a force block (332) and a spring (333); one end of the sliding rod (331) is fixedly connected to the limit block (32); the other end of the sliding rod (331) passes through the third heating tube (23) to the outside; the force block (332) is fixedly connected to the end of the sliding rod (331) located at the outside; the spring (333) is sleeved on the sliding rod (331); and the spring (333) always drives the limit block (32) to slide toward the central axis of the third heating tube (23).

7. The extruder body temperature control system according to claim 6, characterized in that: The plurality of blocking blocks (31) are arranged in a tapered shape from one end close to the third heating tube (23) to one end away from the third heating tube (23).

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