Annealing extrusion equipment and working method thereof
By designing an annealing extrusion device in the production of insulating wires and adjusting the length of the intermediate cooling section of the core wire using the drive device, the problems of cumbersome annealing process and large heat energy consumption in the prior art are solved, process simplification and heat energy saving are achieved, and production efficiency is improved.
Patent Information
- Application Number
- CN202510247139.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2025-05-02
AI Technical Summary
In the existing insulated wire production process, core wire annealing requires high temperature, and after annealing, it requires natural cooling and preheating, resulting in cumbersome process and large heat energy consumption, affecting production capacity and efficiency.
An annealing extrusion device is designed, by setting an annealing device and an extrusion device in a constant temperature working environment, and moving the extrusion device along the slide rail using the drive device to adjust the length of the intermediate cooling section of the core wire, so that the temperature after the annealed core wire is naturally cooled is consistent with the preheating temperature, and additional preheating steps are avoided.
The production process of insulated wires is simplified, the heat energy consumption is reduced, and the production capacity and efficiency are improved.
Smart Images
Figure CN119910877A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of insulated wire production, and in particular to an annealing extrusion device and a working method thereof. Background Art
[0002] PEEK insulated wire (wire coated with a layer of PEEK insulation material) has excellent chemical resistance, thermal stability and oxidation resistance, as well as good mechanical strength, creep resistance and electrical properties. It can withstand high-energy radiation and has good flame retardant properties. The long-term operating temperature range of PEEK can be from -100°C to +250°C.
[0003] In the prior art, the core wire of the insulated wire is generally a copper conductor. Before extrusion coating, the core wire needs to be annealed to soften the metal conductor, thereby reducing its hardness and improving its plasticity, so as to facilitate processing and ensure processing quality. After annealing, the core wire is naturally cooled, and then the core wire is preheated before contacting the PEEK material to minimize the temperature difference between the core wire and the PEEK material during extrusion coating, thereby improving the bonding performance between the core wire and the insulation layer, and ensuring the production quality and service life of the insulated wire.
[0004] Regarding the above technical solution, the inventor believes that the core wire annealing requires high temperature, and after the core wire is cooled after annealing, it must be preheated to a set temperature. In this way, the production process of PEEK insulated wire is relatively complicated and consumes a lot of heat energy, which is not conducive to improving production capacity and efficiency. Summary of the invention
[0005] In order to simplify the production process and reduce heat energy consumption, the present application provides an annealing extrusion device and a working method thereof.
[0006] In the first aspect, the present application provides an annealing extrusion device, which adopts the following technical solution:
[0007] An annealing extrusion device comprises an annealing device and an extrusion device arranged in a constant temperature working environment, wherein a head mold is arranged at the output end of the extrusion device, a first wire outlet is arranged at one end of the annealing device close to the head mold, a second wire inlet is arranged at one end of the head mold close to the annealing device, the second wire inlet is arranged opposite to the first wire outlet, and a line between the second wire inlet and the first wire outlet forms a core wire intermediate cooling section, a slide rail is arranged at the lower end of the extrusion device, and the slide rail is arranged along the length direction of the core wire intermediate cooling section, and the extrusion device is connected to a driving device, and the driving device is used to drive the extrusion device to move along the slide rail to adjust the length of the core wire intermediate cooling section.
[0008] By adopting the above technical solution, through the setting of the driving device, the annealing device in the present application is fixed, and the extrusion device can move along the slide rail in a constant temperature working environment, and then the length of the core wire intermediate cooling section can be adjusted by the driving device, so that after the core wire after annealing is naturally cooled through the core wire intermediate cooling section, the temperature of the core wire is exactly the same as the preheating temperature required before extrusion coating. In this way, after the length adjustment of the core wire intermediate cooling section is completed, the annealed core wire does not need to be preheated after cooling, which simplifies the production process of the insulated wire and reduces the heat energy consumption.
[0009] Optionally, a first temperature detection device for detecting the core wire annealing outlet temperature is provided at the first wire outlet.
[0010] Optionally, a second temperature detection device for detecting the temperature in the constant temperature working environment is also included.
[0011] Optionally, the drive device signal is connected to a controller, and a third temperature detection device is provided between the annealing device and the extrusion device. The controller can record and store a preset extrusion inlet temperature of the core wire and a distance between the third temperature detection device and the first temperature detection device. The first temperature detection device, the second temperature detection device, and the third temperature detection device are respectively connected to the controller signal.
[0012] Optionally, the driving device includes a movable base and a screw module, the upper end of the movable base is fixed to the extrusion device, the lower end of the movable base is fixed to the slide table of the screw module, the slide rail is arranged on the screw module, the length direction of the screw module is the same as the length direction of the slide rail, and the movable base is provided with a slide groove adapted to the slide rail.
[0013] By adopting the above technical solution, when the screw module is started, the slide of the screw module drives the mobile base to move, and the movement of the mobile base drives the extruder to move. The screw module has high precision and load capacity, and can have a long stroke, which is conducive to ensuring that the length of the core wire intermediate cooling section can be accurately and stably adjusted.
[0014] Optionally, a fourth temperature detection device for detecting the actual extrusion inlet temperature of the core wire is provided at the second wire inlet, and the fourth temperature detection device is connected to the controller signal.
[0015] By adopting the above technical solution, the fourth temperature detection device can detect the actual extrusion inlet temperature of the core wire, and feed back the actual extrusion inlet temperature to the controller. The controller can control the driving device according to the difference between the actual extrusion inlet temperature and the preset extrusion inlet temperature to fine-tune the intermediate cooling length until the difference between the actual extrusion inlet temperature and the preset extrusion inlet temperature is within a preset very small range, and then the fine-tuning of the intermediate cooling length is completed. The value of the actual extrusion inlet temperature is used as a verification reference to further ensure that the temperature of the core wire after annealing treatment is exactly the same as the preheating temperature required before extrusion coating after natural cooling in the core wire intermediate cooling section, thereby effectively ensuring the bonding performance between the core wire and the insulation layer.
[0016] In a second aspect, the present application also provides a working method of an annealing extrusion device, which adopts the following technical solution:
[0017] A working method of an annealing extrusion device, applicable to the above-mentioned annealing extrusion device, comprises the following steps:
[0018] The preset extrusion inlet temperature T of the core wire is entered and stored in the controller. P and the distance L between the third temperature detection device and the first temperature detection device S ;
[0019] The first temperature detection device detects the core wire annealing outlet temperature T0 and transmits the T0 signal to the controller;
[0020] The second temperature detection device detects the temperature T in the constant temperature working environment. E , and T E The signal is transmitted to the controller;
[0021] The third temperature detection device detects the temperature T of a specific point of the core wire in the core wire intermediate cooling section. S , and T S The signal is transmitted to the controller;
[0022] The controller is based on T P , L S , T0, T E 、T S The length L of the intermediate cooling section of the core wire is calculated based on the data, and the L signal is transmitted to the driving device, and the driving device drives the extrusion device to move a corresponding distance along the slide rail to adjust the length of the intermediate cooling section of the core wire.
[0023] Optionally, the controller (9) calculates the length L of the core wire intermediate cooling section (3) using formula ①:
[0024] Formula ①:
[0025] In summary, the present application includes at least one of the following beneficial technical effects:
[0026] 1. Compared with the prior art in which the annealing device and the extrusion device are both fixedly installed in the production workshop, the annealing device in this application is fixed through the setting of the driving device, and the extrusion device can move along the slide rail in a constant temperature working environment, and then the length of the core wire intermediate cooling section can be adjusted through the driving device, so that after the annealed core wire is naturally cooled through the core wire intermediate cooling section, the temperature of the core wire is exactly the same as the preheating temperature required before extrusion coating. In this way, after the length adjustment of the core wire intermediate cooling section is completed, the annealed core wire does not need to be preheated after cooling, which simplifies the production process of the insulated wire and reduces the heat energy consumption, which is conducive to the improvement of production capacity and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of the overall structure of an annealing extrusion device according to an embodiment of the present application.
[0028] Figure 2 It is a schematic diagram of the overall structure from another perspective of the embodiment of the present application.
[0029] Figure 3 It is a schematic diagram of the structure of the driving device in the embodiment of the present application.
[0030] Figure 4 It is a control principle diagram of the controller in the embodiment of the present application.
[0031] Figure 5 It is a flow chart showing a working method of an annealing extrusion device in an embodiment of the present application.
[0032] Explanation of the reference numerals: 1. Annealing device; 11. First wire inlet; 12. First wire outlet; 2. Extrusion device; 21. Head mold; 211. Second wire inlet; 212. Second wire outlet; 3. Intermediate cooling section for core wire; 4. Slide rail; 5. Driving device; 51. Moving base; 511. Slide groove; 52. Screw module; 6. First temperature detection device; 7. Second temperature detection device; 8. Third temperature detection device; 9. Controller; 91. Fourth temperature detection device. DETAILED DESCRIPTION
[0033] The following combination Figure 1-Figure 5 , further details of this application are given.
[0034] Example:
[0035] In a first aspect, an embodiment of the present application discloses an annealing extrusion device.
[0036] Reference Figure 1-3An annealing extrusion device comprises an annealing device 1 and an extrusion device 2 arranged in a constant temperature working environment, a head die 21 is fixedly installed at the output end of the extrusion device 2, a first wire inlet 11 is provided at the end of the annealing device 1 away from the head die 21, and a first wire outlet 12 is provided at the end close to the head die 21; a second wire inlet 211 is provided at the end of the head die 21 close to the annealing device 1, and a second wire outlet 212 is provided at the end away from the annealing device 1; the second wire inlet 211 is arranged opposite to the first wire outlet 12, and the line between the second wire inlet 211 and the first wire outlet 12 forms a core wire intermediate cooling section 3. A slide rail 4 is arranged at the lower end of the extrusion device 2, and the slide rail 4 is arranged along the length direction of the core wire intermediate cooling section 3. The extrusion device 2 is connected to a driving device 5, and the driving device 5 is used to drive the extrusion device 2 to move along the slide rail 4 to adjust the length of the core wire intermediate cooling section 3.
[0037] Compared with the prior art in which the annealing device 1 and the extrusion device 2 are both fixedly installed in the production workshop, the annealing device 1 in the present application is fixed through the setting of the driving device 5, and the extrusion device 2 can move along the slide rail 4 in a constant temperature working environment, and then the length of the core wire intermediate cooling section 3 can be adjusted through the driving device 5, so that after the annealed core wire is naturally cooled through the core wire intermediate cooling section 3, the temperature of the core wire is exactly the same as the preheating temperature required before extrusion coating. In this way, after the length adjustment of the core wire intermediate cooling section 3 is completed, the annealed core wire does not need to be preheated after cooling, which simplifies the production process of the insulated wire and reduces the heat energy consumption, which is conducive to the improvement of production capacity and efficiency.
[0038] Reference Figure 4 The annealing extrusion equipment also includes a first temperature detection device 6, a second temperature detection device 7, a third temperature detection device 8 and a controller 9, wherein the first temperature detection device 6 is installed at the first outlet 12, and is used to detect the core wire annealing outlet temperature T0; the second temperature detection device 7 is used to detect the temperature T in the constant temperature working environment E The third temperature device is installed between the annealing device 1 and the extrusion device 2 and is relatively fixed to the first temperature detection device 6, and is used to detect the temperature T of a specific point in the core wire intermediate cooling section 3. S ; The controller 9 can record and store the preset extrusion inlet temperature T of the core wire P and the distance L between the third temperature detection device 8 and the first temperature detection device 6 S , and is signal-connected to the driving device 5; in addition, the first temperature detection device 6, the second temperature detection device 7, and the third temperature detection device 8 are respectively signal-connected to the controller 9.
[0039] When in use, the controller 9 is based on Newton's cooling law and adjusts the extrusion inlet temperature T according to the preset P, the distance L between the third temperature detection device 8 and the first temperature detection device 6 S , core wire annealing outlet temperature T0, constant temperature working environment temperature T E , the temperature T of a specific point in the core wire intermediate cooling section 3 S , calculate the length L of the core wire intermediate cooling section 3, and transmit its signal to the driving device 5, the driving device 5 drives the extrusion device 2 to move a corresponding distance along the slide rail 4 to adjust the length of the core wire intermediate cooling section 3.
[0040] Reference Figure 4 The annealing extrusion equipment also includes a fourth temperature detection device 91, which is arranged at the second wire inlet 211 and is used to detect the actual extrusion inlet temperature of the core wire, and the fourth temperature detection device 91 is connected to the controller 9 by signal. In this way, the actual extrusion inlet temperature of the core wire can be detected by the fourth temperature detection device 91, and the actual extrusion inlet temperature is fed back to the controller 9. The controller 9 can control the drive device 5 according to the difference between the actual extrusion inlet temperature and the preset extrusion inlet temperature to fine-tune the intermediate cooling length until the difference between the actual extrusion inlet temperature and the preset extrusion inlet temperature is within a preset very small range, and the fine-tuning of the intermediate cooling length is completed. The value of the actual extrusion inlet temperature is used as a verification reference to further ensure that the core wire after the annealing treatment is naturally cooled in the core wire intermediate cooling section 3, and the temperature of the core wire is exactly the same as the preheating temperature required before extrusion coating, thereby effectively ensuring the bonding performance between the core wire and the insulation layer.
[0041] Reference Figure 3 The driving device 5 includes a moving base 51 and a screw module 52, wherein the screw module 52 is connected to the controller 9 by signal, the upper end of the moving base 51 is fixed to the extrusion device 2, the lower end of the moving base 51 is fixed to the slide of the screw module 52, the slide rail 4 is fixed on the screw module 52, and the length direction of the screw module 52 is the same as the length direction of the slide rail 4, and the bottom of the moving base 51 is provided with a slide groove 511 adapted to the slide rail 4. In this way, the controller 9 can control the screw module 52 to start, and when the screw module 52 starts, the slide of the screw module 52 drives the moving base 51 to move, and the movement of the moving base 51 drives the extrusion device 2 to move. The screw module 52 has high precision and load capacity, and can have a long stroke, which is conducive to ensuring that the length of the core wire intermediate cooling section 3 can be accurately and stably adjusted.
[0042] In a second aspect, the present application also discloses a working method of the annealing extrusion device.
[0043] Reference Figure 5 , a working method of an annealing extrusion device, comprising the following steps:
[0044] S1, enter and store the preset extrusion inlet temperature T of the core wire into the controller 9 P and the distance L between the third temperature detection device 8 and the first temperature detection device 6 S ;
[0045] S2, detecting the core wire annealing outlet temperature T0 through the first temperature detection device 6, and transmitting the T0 signal to the controller 9;
[0046] S3, the temperature T in the constant temperature working environment is detected by the second temperature detection device 7. E , and T E The signal is transmitted to the controller 9;
[0047] S4. The temperature T of a certain point of the core wire in the core wire intermediate cooling section 3 is detected by the third temperature detection device 8. S , and T S The signal is transmitted to the controller 9;
[0048] S5, controller 9 according to T P , L S , T0, T E 、T S The length L of the core wire intermediate cooling section 3 is calculated based on the data, and the L signal is transmitted to the driving device 5. The driving device 5 drives the extrusion device 2 to move a corresponding distance along the slide rail 4 to adjust the length of the core wire intermediate cooling section 3.
[0049] In step S5, the controller 9 calculates the length L of the core wire intermediate cooling section 3 using formula ①:
[0050] Formula ①:
[0051] The basis of formula ① is specifically described as follows:
[0052] According to Newton's law of cooling: when there is a temperature difference between the surface of an object and its surroundings, the amount of heat lost from a unit area per unit time is proportional to the temperature difference, and the proportional coefficient is called the heat transfer coefficient.
[0053] Known constant temperature working environment temperature T E , the temperature of the object at time t is T(t), the initial temperature of the core wire is the core wire annealing outlet temperature T0, and the differential equation (1-1) can be listed:
[0054]
[0055] Solve the differential equation (1-1) and obtain formula (1-2):
[0056]
[0057] Formula (1-3) is obtained from formula (1-2):
[0058] ln[T(t)-T E ] = kt + C;
[0059] (1-3)
[0060] Let t = 0, we can find C in formula (1-3), that is:
[0061] C=ln[T(0)-T E ]=ln[T0-T E ];
[0062] Substituting the above C value into formula (1-3), we get formula (1-4):
[0063] ln[T(t)-T E ]=kt+ln[T0-T E ];
[0064] (1-4)
[0065] Substitute t = t S =L S / v, T(t) = T S , where t S The value of k can be obtained by expressing the cooling time of the core wire when it reaches the third temperature sensor 8, and v is the linear speed of the core wire. The expression of k is formula (1-5):
[0066]
[0067] T(t) = T P , L=vt is substituted into formula (1-4) to obtain formula (1-6):
[0068]
[0069] Substituting formula (1-5) into formula (1-6), we can get formula ①:
[0070]
[0071] The working principle of the annealing extrusion device in the embodiment of the present application is as follows: by inputting the preset extrusion inlet temperature T of the core wire P and the distance L between the third temperature detection device 8 and the first temperature detection device 6 S, and combined with the temperature values detected by the first temperature detection device 6, the second temperature detection device 7 and the third temperature detection device 8, the controller 9 can calculate the length L of the core wire intermediate cooling section 3, and transmit its signal to the drive device 5. The drive device 5 drives the extrusion device 2 to move a corresponding distance along the slide rail 4 to achieve automatic adjustment of the length of the core wire intermediate cooling section 3, so that after the annealed core wire is naturally cooled through the core wire intermediate cooling section 3, the temperature of the core wire is exactly the same as the preheating temperature required before extrusion coating. In this way, after the length adjustment of the core wire intermediate cooling section 3 is completed, the annealed core wire does not need to be preheated after cooling, which simplifies the production process of the insulated wire and reduces the heat energy consumption, which is conducive to the improvement of production capacity and efficiency.
[0072] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An annealing extrusion device, characterized in that: The invention comprises an annealing device (1) and an extrusion device (2) arranged in a constant temperature working environment, wherein the output end of the extrusion device (2) is provided with a head die (21), the end of the annealing device (1) close to the head die (21) is provided with a first wire outlet (12), the end of the head die (21) close to the annealing device (1) is provided with a second wire inlet (211), the second wire inlet (211) is arranged opposite to the first wire outlet (12), and the line between the second wire inlet (211) and the first wire outlet (12) forms a core wire intermediate cooling section (3), the lower end of the extrusion device (2) is provided with a slide rail (4), the slide rail (4) is arranged along the length direction of the core wire intermediate cooling section (3), and the extrusion device (2) is connected to a driving device (5), the driving device (5) is used to drive the extrusion device (2) to move along the slide rail (4) to adjust the length of the core wire intermediate cooling section (3).
2. The annealing extrusion device according to claim 1, characterized in that: The first wire outlet (12) is provided with a first temperature detection device (6) for detecting the core wire annealing outlet temperature.
3. An annealing extrusion device according to claim 2, characterized in that: It also includes a second temperature detection device (7) for detecting the temperature in the constant temperature working environment.
4. The annealing extrusion device according to claim 3, characterized in that: The driving device (5) is signal-connected to a controller (9); a third temperature detection device (8) is provided between the annealing device (1) and the extrusion device (2); the controller (9) can record and store a preset extrusion inlet temperature of the core wire and a distance between the third temperature detection device (8) and the first temperature detection device (6); the first temperature detection device (6), the second temperature detection device (7), and the third temperature detection device (8) are signal-connected to the controller (9), respectively.
5. The annealing extrusion device according to claim 1, characterized in that: The driving device (5) comprises a movable base (51) and a screw module (52); the upper end of the movable base (51) is fixed to the extrusion device (2); the lower end of the movable base (51) is fixed to the slide table of the screw module (52); the slide rail (4) is arranged on the screw module (52); the length direction of the screw module (52) is the same as the length direction of the slide rail (4); and the movable base (51) is provided with a slide groove (511) adapted to the slide rail (4).
6. The annealing extrusion device according to claim 4, characterized in that: A fourth temperature detection device (91) for detecting the actual extrusion inlet temperature of the core wire is provided at the second wire inlet (211), and the fourth temperature detection device (91) is connected to the controller (9) by signal.
7. A working method of an annealing extrusion device, characterized in that: The working method is applicable to an annealing extrusion device as claimed in claim 4 or 6, comprising the following steps: The preset extrusion inlet temperature T of the core wire is entered and stored in the controller (9). P and a distance L between the third temperature detection device (8) and the first temperature detection device (6) S ; The first temperature detection device (6) detects the core wire annealing outlet temperature T0 and transmits the T0 signal to the controller (9); The second temperature detection device (7) detects the temperature T in the constant temperature working environment. E , and T E The signal is transmitted to the controller (9); The third temperature detection device (8) detects the temperature T of the core wire at a specific point in the core wire intermediate cooling section (3). S , and T S The signal is transmitted to the controller (9); The controller (9) is based on T P , L S , T0, T E , T S The length L of the core wire intermediate cooling section (3) is calculated based on the data, and the L signal is transmitted to the driving device (5). The driving device (5) drives the extrusion device (2) to move a corresponding distance along the slide rail (4) to adjust the length of the core wire intermediate cooling section (3).
8. A working method of an annealing extrusion device according to claim 7, characterized in that: The controller (9) calculates the length L of the core wire intermediate cooling section (3) using formula ①: Official 1: