Copper wire drawing machine for cable production

Abstract

The invention relates to a cable production copper wire drawing machine, and belongs to the technical field of drawing material lubrication, the cable production copper wire drawing machine comprises a filter tower, the filter tower comprises an inner tower and an outer tower, and the outer tower is arranged around the inner tower; the partition plate I is fixedly arranged in the outer tower and divides the outer tower into a liquid inlet chamber and a liquid outlet chamber; the filter material turntable is arranged in the inner tower, and a filter material is arranged in the filter material turntable; the liquid inlet I is formed in the bottom end of the inner tower; the liquid outlet II is formed in the top end of the inner tower; the liquid outlet pipe I is arranged on the outer tower and is communicated with the liquid outlet chamber. A plurality of liquid inlet pipes are fixedly arranged in the liquid inlet cavity, a plurality of liquid outlet holes are formed in the liquid inlet pipes, and the liquid outlet holes face upwards. The lubricating liquid filtering device has the effect of improving the lubricating liquid filtering efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of lubrication of drawn materials, and in particular to a copper wire drawing machine for cable production. Background Art

[0002] During the copper wire drawing process, the lubricant forms a micron-level lubricating film on the copper surface through physical adsorption, effectively reducing the friction coefficient between the die and the wire, reducing surface scratches and energy loss. The lubricant can quickly remove the heat generated by plastic deformation through liquid phase forced convection heat exchange, maintaining the stability of the material's work hardening characteristics. The corrosion-inhibiting components in the lubricant can form a monomolecular protective layer on the copper surface, blocking oxygen contact and inhibiting the formation of copper oxide.

[0003] In the continuous production process, the lubricating fluid circulation system will continuously introduce copper chip wear particles, tungsten carbide hard particles from mold coating peeling, and fiber impurities floating in from the environment. The current treatment process uses a magnetic field to adsorb ferromagnetic impurities, sedimentation treatment for particles > 100μm, and a filter to intercept fine impurities.

[0004] The traditional filter system has a flow-precision paradox. When a 400-mesh filter is used, the effective flux can only be maintained at 20m 3 / h, cannot match the high-speed wire drawing machine 40m 3 / min circulation requirement. In addition, the filter cake layer formed by the accumulation of copper chips will increase the pressure loss from 0.15MPa to 0.8MPa within 4 hours, triggering the pressure difference alarm to shut down. Although the self-cleaning filter can extend the cleaning cycle to 8 hours, the mechanical vibration caused by backwashing will accelerate the failure of the pipe joint seal. Summary of the invention

[0005] In order to improve the problem of affecting circulation in the existing lubricating liquid filtration process, the present application provides a copper wire drawing machine for cable production.

[0006] The present application provides a cable production copper wire drawing machine adopts the following technical solution:

[0007] A copper wire drawing machine for cable production, comprising a filter tower, the filter tower comprising:

[0008] An inner tower and an outer tower, wherein the outer tower is arranged around the inner tower;

[0009] Partition 1, the partition 1 is fixedly arranged in the outer tower, and the partition 1 divides the outer tower into a liquid inlet chamber and a liquid outlet chamber;

[0010] A filter material turntable is arranged in the inner tower, and filter material is arranged in the filter material turntable;

[0011] A first liquid inlet and a second liquid outlet, wherein the first liquid inlet is arranged at the bottom end of the inner tower, and the second liquid outlet is arranged at the top end of the inner tower;

[0012] A liquid outlet pipe 1 is arranged on the outer tower and communicated with the liquid outlet chamber.

[0013] Optionally, a plurality of liquid inlet pipes are fixedly disposed in the liquid inlet chamber, a plurality of liquid outlet holes are opened on the liquid inlet pipes, and the liquid outlet holes are arranged upward.

[0014] Optionally, a partition plate 2 is fixedly provided in the inner tower, and the partition plate 2 divides the inner tower into a filter chamber and a backwash chamber; the liquid inlet 1 is located between the filter chamber and the liquid inlet chamber; the liquid outlet 2 is located between the filter chamber and the liquid outlet chamber; and a liquid inlet 2 is provided at the top of the inner tower between the liquid outlet chamber and the backwash chamber.

[0015] Optionally, a filter material channel is fixedly provided in the inner tower, and the filter material turntable is rotatably disposed in the filter material channel; a filter material bin is disposed in the filter material turntable, and the filter material is disposed in the filter material bin; a liquid flow hole is opened through the filter material channel; when the filter material turntable stops rotating, the filter material bin is aligned with the liquid flow hole.

[0016] Optionally, a pickling chamber is further provided in the inner tower, a pickling liquid inlet pipe is fixedly provided at the top of the pickling chamber, and a pickling liquid outlet pipe is fixedly provided at the bottom of the pickling chamber.

[0017] Optionally, a central axis is fixedly provided in the inner tower, a driving motor is fixedly provided at the top of the central axis, a driving shaft is rotatably provided in the central axis; and the filter material turntable is fixedly connected to the driving shaft.

[0018] Optionally, the inner tower is provided with a slide groove between the filter chamber and the liquid inlet chamber, a slide plate is slidably arranged in the slide groove, an electromagnetic switch is arranged on the connection circuit between the drive motor and the power supply, a control switch is arranged on the slide plate, and the electromagnetic switch is connected to the control switch.

[0019] Optionally, the control switch 1 includes a metal sheet fixed on the outer peripheral surface of the sliding sheet 1, a metal rod fixed in the sliding groove 1, and a resistance wire in contact with the metal sheet; the metal sheet is slidably connected to the metal rod.

[0020] Optionally, the electromagnetic switch 1 is connected to the control switch 1 through a comparator and a relay.

[0021] Optionally, the inner tower is provided with a slide vane 2 which is slidably disposed between the filter chamber and the liquid outlet chamber; an electromagnetic switch 2 is provided on the connection circuit between the drive motor and the power supply, a control component 2 is provided on the slide vane 2, and the electromagnetic switch 2 is connected to the control component 2.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The present application adds triethanolamine to the lubricating fluid. Triethanolamine can not only reduce the surface tension of the lubricating fluid, but also aggregate and float the oil droplets through the adsorption of polar groups, which is convenient for subsequent cleaning with a defoaming agent. At the same time, triethanolamine can reduce the oil substances on the surface of the copper wire from contaminating the filter material, thereby reducing the cleaning steps for the filter material.

[0024] 2. Through the periodic rotation of the filter media turntable, the three filter media bins enter the filtration, pickling and backwashing chambers in turn to form a closed-loop operation. The citric acid in the pickling chamber reacts with the metal oxides on the surface of the filter media to dissolve the metal oxides; the backwashing chamber uses lubricating fluid to flush in reverse to remove hard particles with a particle size greater than 10μm. This mechanism can shorten the filter media regeneration cycle, and compared with the traditional shutdown cleaning method, the filtration flux is increased, and the circulation efficiency is improved.

[0025] 3. The displacement of the sliding vane is linearly related to the density difference of the lubricating fluid. When the filtration efficiency decreases, the movement of the sliding vane increases the resistance value of the control circuit. When the comparator detects that the input voltage exceeds the threshold, it triggers the electromagnetic switch to close and drives the motor to perform stepping action. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a cross-sectional view of the filter tower of the embodiment of the present application.

[0027] Figure 2 It is a schematic diagram of the structure of the filter tower of the embodiment of the present application from the top perspective.

[0028] Figure 3 It is a schematic structural diagram of the filter tower of the embodiment of the present application from the bottom perspective.

[0029] Figure 4 It is a schematic diagram of the structure of the slide 1 according to an embodiment of the present application.

[0030] Figure numerals: 1. filter tower; 2. inner tower; 3. outer tower; 4. partition one; 5. liquid inlet chamber; 6. liquid outlet chamber; 7. partition two; 8. filter chamber; 9. pickling chamber; 10. backwash chamber; 11. central axis; 12. liquid inlet pipe; 13. liquid outlet hole; 14. liquid inlet one; 15. liquid outlet two; 16. liquid inlet two; 17. filter material channel; 18. liquid flow hole; 19. filter material turntable; 20. slide one; 21. slide trough one; 22. metal sheet; 23. metal rod; 24. resistance wire; 25. insulating slot; 26. electromagnet. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] The embodiment of the present application discloses a copper wire drawing machine for cable production. The copper wire drawing machine for cable production includes a lubrication tank and a filter tower 1; the filter tower 1 is arranged at the bottom of the lubrication tank. The lubrication tank is filled with lubricating liquid, the drawing die is arranged in the lubrication tank, and the copper wire is stretched in the lubrication tank; a pouring pipe is arranged above the lubrication tank, and the lubricating liquid flows into the lubrication tank from the pouring pipe, and the copper wire is constantly in contact with the lubricating liquid during the stretching process.

[0033] In this embodiment, the lubricating liquid adopts a water-based lubricating liquid, which includes water, an organic lubricant and / or an inorganic lubricant, and a defoaming agent. A weak base, such as triethanolamine, is added to the water-based lubricating liquid in this embodiment. Triethanolamine has anti-rust properties and can remove organic impurities and oil substances in the lubricating liquid.

[0034] The filter tower 1 includes an inner tower 2 and an outer tower 3 arranged around the inner tower 2. Preferably, the cross-sections of the inner tower 2 and the outer tower 3 are both circular. Two partitions 4 are symmetrically fixed in the outer tower 3, one end of the partition 4 is fixedly connected to the inner circumference of the outer tower 3, and the other end is fixedly connected to the outer circumference of the inner tower 2. The two partitions 4 divide the outer tower 3 into two semi-circular liquid inlet chambers 5 and liquid outlet chambers 6. The inner tower 2 is used to filter the lubricating liquid, and three partitions 27 are fixedly arranged in the inner tower 2 to divide the inner tower 2 into three fan-shaped chambers; the partition 27 extends from the axis of the inner tower 2 to the inner circumferential wall of the inner tower 2; the three partitions 27 are fixedly connected at the axis of the inner tower 2, and are respectively fixedly connected to the inner circumference of the inner tower 2. The three fan-shaped chambers are respectively a filtration chamber 8, a pickling chamber 9 and a backwash chamber 10. A central axis 11 is vertically fixed at the axis of the inner tower 2, and the three partitions 27 are respectively fixedly connected to the central axis 11.

[0035] A plurality of liquid inlet pipes 12 are fixedly arranged in the liquid inlet chamber 5, one end of the liquid inlet pipe 12 is fixedly connected to the inner peripheral surface of the outer tower 3, and the other end is fixedly connected to the outer peripheral surface of the inner tower 2; the liquid inlet pipe 12 has a plurality of liquid outlet holes 13 evenly distributed along its own axis, and the liquid outlet holes 13 are arranged upward; a liquid inlet hole is provided on the end surface of the liquid inlet pipe 12. A liquid outlet port 1 is provided at the bottom of the lubrication pool, and the liquid outlet port 1 is connected to the liquid inlet hole of the liquid inlet pipe 12 through a liquid pipe, and a liquid pump 1 is provided on the liquid pipe. Specifically, the lubricating liquid to be filtered flows into the liquid inlet pipe 12 from the liquid pipe, and then flows into the liquid inlet chamber 5, so that the liquid level of the liquid inlet chamber 5 is continuously increased.

[0036] The bottom of the inner tower 2 is provided with a liquid inlet 14 between the liquid inlet chamber 5 and the filter chamber 8; specifically, the lubricating liquid to be filtered enters the liquid inlet chamber 5 and flows into the filter chamber 8 through the liquid inlet 14, and the liquid levels in the liquid inlet chamber 5 and the filter chamber 8 rise synchronously. The top of the inner tower 2 is provided with a liquid outlet 15 between the filter chamber 8 and the liquid outlet chamber 6; specifically, in the filter chamber 8, the level of the filtered lubricating liquid continues to rise, and after the level rises to the height of the liquid outlet 15, it flows into the liquid outlet chamber 6. The top of the inner tower 2 is provided with a liquid inlet 16 between the liquid outlet chamber 6 and the backwash chamber 10, and the filtered lubricating liquid flows into the backwash chamber 10 through the liquid inlet 16. The outer peripheral wall of the outer tower 3 is fixed with a liquid outlet pipe 1 connected to the liquid outlet chamber 6, and the filtered lubricating liquid flows out from the liquid outlet pipe 1; the outer peripheral wall of the inner tower 2 is fixed with a liquid outlet pipe 2 connected to the backwash chamber 10.

[0037] A pickling liquid inlet pipe is fixedly arranged at the top of the pickling chamber 9, and a pickling liquid outlet pipe is fixedly arranged at the bottom. The pickling liquid inlet pipe injects pickling liquid into the pickling chamber 9. In this embodiment, the pickling liquid is citric acid.

[0038] A filter material channel 17 is horizontally arranged in the inner tower 2. The cross section of the filter material channel 17 is circular, and the outer peripheral surface of the filter material channel 17 is fixedly connected to the inner peripheral surface of the inner tower 2, and the filter material channel 17 is arranged through three partitions 7. The filter material channel 17 is located in the filter chamber 8, the acid washing chamber 9 and the backwash chamber 10, and liquid flow holes 18 are respectively opened in the vertical direction. A filter material turntable 19 is rotatably arranged in the filter material channel 17. Three filter material bins are opened in the filter material turntable 19 along its circumference, and the filter material bins are used to place filter materials. Filter screens are fixed on the top and bottom surfaces of the filter material bin, respectively. Specifically, the lubricating liquid flows into the filter material bin through the liquid flow holes 18 and contacts the filter material. The filter material turntable 19 rotates periodically, and when it stops rotating, the three filter material bins are respectively aligned with the liquid flow holes 18. The filter material adopts ceramic filter material, such as alumina fiber ceramic.

[0039] Preferably, the inner circumference of the filter channel 17 and the outer circumference of the filter turntable 19 are coated with a waterproof coating, and the cross-sectional area of ​​the liquid flow hole 18 is smaller than the cross-sectional area of ​​the filter bin to reduce the situation where liquid enters the adjacent chamber from the filter channel 17.

[0040] A driving motor is fixedly arranged at the top of the central axis 11, and a driving shaft is coaxially fixedly connected to the end of the output shaft of the driving motor. The driving shaft is rotatably arranged in the central axis 11 and penetrates the filter material rotating disk 19, and the filter material rotating disk 19 is fixedly connected to the driving shaft. Preferably, the central axis 11 is divided into an upper half and a lower half by the filter material channel 17, and the driving shaft is connected to the upper half and the lower half of the central axis 11 respectively.

[0041] Specifically, the lubricating liquid to be filtered enters the filter chamber 8 from the liquid inlet 14, and as the liquid level rises, it enters the filter material bin in the filter chamber 8 and contacts the filter material. The copper powder and other metal particles in the lubricating liquid are intercepted by the filter material in the filter chamber 8, and the lubricating liquid located above the filter material rotating disk 19 enters the liquid outlet chamber 6 from the liquid outlet 2 15 after being filtered.

[0042] Specifically, after the filter material turntable 19 rotates, the filter material bin initially located in the filter chamber 8 rotates to the pickling chamber 9, and the metal oxides and some metal particles in the filter material are removed by contact with the pickling liquid. It should be noted that after the lubricating liquid leaves the liquid outlet chamber 6, a weak base needs to be added to increase the pH of the water-based lubricating liquid.

[0043] Specifically, the filter bin located in the acid washing chamber 9 enters the backwash chamber 10 after rotation. The filtered lubricating liquid enters the backwash chamber 10 from the liquid outlet chamber 6 to wash the filter material to further remove the solid particles adsorbed in the filter material. The lubricating liquid in the backwash chamber 10 is discharged from the liquid outlet pipe 2.

[0044] The inner tower 2 is provided with a slide 20 for sliding between the filter chamber 8 and the liquid inlet chamber 5, and a slide 2 for sliding between the filter chamber 8 and the liquid outlet chamber 8. Specifically, a slide groove 21 is provided on the side wall of the inner tower 2 between the filter chamber 8 and the liquid inlet chamber 5, and the slide 20 is slidably provided in the slide groove 21, and the two ends of the slide 20 are respectively in contact with the unfiltered lubricating liquid and the filtered lubricating liquid; because the unfiltered lubricating liquid contains solid particles, its density is greater than the density of the filtered lubricating liquid, so that there is a pressure difference at the two ends of the slide 20, and the pressure difference points to the filter chamber 8. A slide groove 2 is provided on the side wall of the inner tower 2 between the filter chamber 8 and the liquid outlet chamber 8, and the slide 2 is slidably provided in the slide groove 2, and the two ends of the slide 2 are respectively in contact with the filtered lubricating liquid in the filter chamber 8 and the liquid outlet chamber 8, and because the liquid level in the liquid outlet chamber 8 is low, there is a pressure difference at the two ends of the slide 2, and the pressure difference points to the liquid outlet chamber 8. It should be noted that the sliding vane 1 20 and the sliding vane 2 are both arranged above the filter material channel 17 .

[0045] The connection circuit between the driving motor and the power supply is provided with an electromagnetic switch 1 and an electromagnetic switch 2; a control component 1 for controlling the electromagnetic switch 1 is provided between the slide 1 20 and the slide slot 1 21, and a control component 2 for controlling the electromagnetic switch 2 is provided between the slide 2 and the slide slot 2; the control component 1 and the control component 2 have the same structure. The control component 1 includes a metal sheet 22 fixed on the outer peripheral surface of the slide 1 20, a metal rod 23 fixed in the slide slot 1 21, and a resistance wire 24 in contact with the metal sheet 22. Specifically, an insulating groove 25 is provided in the slide slot, and the metal sheet 22 is slidably provided in the insulating groove 25; a resistance wire 24 is wound around the inner peripheral surface of the insulating groove 25, and a metal rod 23 is fixed in the insulating groove 25 along its axial direction; the metal sheet 22 is sleeved on the circumference of the metal rod 23 and is in electrical contact with the metal rod 23. Terminals are provided at both ends of the resistance wire 24 and at least one end of the metal rod 23.

[0046] Furthermore, when the filtering capacity of the filter material decreases, the density of the lubricating fluid in the filter chamber 8 increases, thereby causing the slide 1 20 to move toward the liquid inlet chamber 5 and the slide 2 to move toward the liquid outlet chamber 8. In this embodiment, the metal rods 23 in the control component 1 and the control component 2 are respectively provided with terminals at one end away from the filter chamber 8 and connected to the circuit. The slide 1 20 moves toward the liquid inlet chamber 5 and the slide 2 moves toward the liquid outlet chamber 8, respectively increasing the resistance of the control component 1 and the control component 2 connected to the circuit.

[0047] Control component 1 and control component 2 are connected to electromagnetic switch 1 and electromagnetic switch 2 respectively through comparators and relays. Specifically, the terminals of the resistance wire 24 in control component 1 are connected to the power supply respectively; the terminals of the metal rod 23 are connected to the positive input terminal of the comparator, and the negative input terminal of the comparator is connected to the reference voltage; the output terminal of the comparator is connected to the relay coil, and the electromagnetic switch 1 is connected to the normally open contact of the comparator. After the slide 1 20 moves away from the filter chamber 8, the input voltage received by the comparator increases. When the input voltage exceeds the reference voltage, the relay controls the electromagnetic switch 1 to close. Electromagnetic switch 2 is connected to control component 2, and the connection method of electromagnetic switch 2 is the same as that of electromagnetic switch 1; after the slide 2 moves toward the direction close to the liquid outlet chamber 8, the relay controls the electromagnetic switch 2 to close.

[0048] It should be noted that the drive motor is a stepper motor; after electromagnetic switch 1 and electromagnetic switch 2 are closed, the drive motor controller is energized and sends a pulse signal of fixed intensity to the drive motor, and the output shaft of the drive motor stops after rotating a unit angle, causing the filter material turntable 19 to rotate 120°, and the filter material bin stops after moving to the adjacent chamber.

[0049] An electromagnet 26 is provided in control component 1 and / or control component 2. When the electromagnet 26 is energized, the metal sheet 22 is attracted to move the metal sheet 22 toward the filter chamber 8, thereby disconnecting the control component 1 and / or control component 2. The electromagnet 26 is connected to the power supply via a contact switch, and the contact switch is provided on the inner surface of the filter channel 17. Three contact grooves for cooperating with the control switch are evenly distributed along the circumference of the filter turntable 19. When the filter turntable 19 stops rotating, the contact switch is aligned with the contact groove, and the contact switch is closed; when the filter turntable 19 rotates, the contact switch leaves the contact groove and is pressed by the surface of the filter turntable 19, and the contact switch is in a disconnected state. Preferably, the end of the contact switch is set to a rounded corner so that the contact switch leaves the contact groove after the filter turntable 19 rotates.

[0050] A timer and a relay are also provided on the connection circuit of the electromagnet 26. Specifically, the output end of the timer is connected to the relay coil, and the electromagnet 26 is connected to the normally open contact of the relay. After the contact switch is closed, the timer starts timing, and the electromagnet 26 is powered on and turned on; after the timer ends timing, a low-level signal is sent to the relay, and the relay controls the electromagnet 26 to cut off the power. Since the contact turntable ends rotation, the filter material after backwashing moves into the filter chamber 8. At this time, the lubricating fluid in the filter chamber 8 is still in a high-density state. The electromagnet 26 adsorbs the metal sheet 22 to reduce the resistance value of the control component 1 and / or the control component 2 connected to the circuit. After the comparator detects that the input voltage is lower than the reference voltage, it sends a low level to the relay and controls the electromagnetic switch 1 and / or the electromagnetic switch 2 to be disconnected. After the density of the lubricating fluid in the filter chamber 8 returns to a normal state, the timer ends timing and the electromagnet 26 is cut off.

[0051] 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. A copper wire drawing machine for cable production, characterized in that: The invention comprises a filter tower (1), wherein the filter tower (1) comprises: An inner tower (2) and an outer tower (3), wherein the outer tower (3) is arranged around the inner tower (2); Partition plate 1 (4), the partition plate 1 (4) is fixedly arranged in the outer tower (3), and the partition plate 1 (4) divides the outer tower (3) into a liquid inlet chamber (5) and a liquid outlet chamber (6); A filter material turntable (19), wherein the filter material turntable (19) is arranged in the inner tower (2), and filter material is arranged in the filter material turntable (19); A first liquid inlet (14) and a second liquid outlet (15), wherein the first liquid inlet (14) is arranged at the bottom end of the inner tower (2), and the second liquid outlet (15) is arranged at the top end of the inner tower (2); A liquid outlet pipe 1, wherein the liquid outlet pipe 1 is arranged on the outer tower (3) and is in communication with the liquid outlet chamber (6).

2. A copper wire drawing machine for cable production according to claim 1, characterized in that: A plurality of liquid inlet pipes (12) are fixedly arranged in the liquid inlet chamber (5), and a plurality of liquid outlet holes (13) are opened on the liquid inlet pipes (12), and the liquid outlet holes (13) are arranged upward.

3. A copper wire drawing machine for cable production according to claim 1, characterized in that: The inner tower (2) is provided with a partition plate 2 (7), the partition plate 2 (7) dividing the inner tower (2) into a filter chamber (8) and a backwash chamber (10); the liquid inlet 1 (14) is located between the filter chamber (8) and the liquid inlet chamber (5); the liquid outlet 2 (15) is located between the filter chamber (8) and the liquid outlet chamber (6); and the top of the inner tower (2) is provided with a liquid inlet 2 (16) located between the liquid outlet chamber (6) and the backwash chamber (10).

4. A copper wire drawing machine for cable production according to claim 3, characterized in that: A filter material channel (17) is fixedly provided in the inner tower (2), and the filter material rotary disc (19) is rotatably arranged in the filter material channel (17); a filter material bin is arranged in the filter material rotary disc (19), and the filter material is arranged in the filter material bin; a liquid flow hole (18) is penetrated through the filter material channel (17); when the filter material rotary disc (19) stops rotating, the filter material bin is aligned with the liquid flow hole (18).

5. A copper wire drawing machine for cable production according to claim 1, 3 or 4, characterized in that: A pickling chamber (9) is also provided in the inner tower (2). A pickling liquid inlet pipe is fixedly provided at the top of the pickling chamber (9), and a pickling liquid outlet pipe is fixedly provided at the bottom of the pickling chamber (9).

6. A copper wire drawing machine for cable production according to claim 4, characterized in that: A central shaft (11) is fixedly arranged in the inner tower (2), a driving motor is fixedly arranged at the top of the central shaft (11), and a driving shaft is rotatably arranged in the central shaft (11); the filter material turntable (19) is fixedly connected to the driving shaft.

7. A copper wire drawing machine for cable production according to claim 6, characterized in that: The inner tower (2) is provided with a slide groove (21) between the filtering chamber (8) and the liquid inlet chamber (5), a slide plate (20) is slidably arranged in the slide groove (21), an electromagnetic switch (1) is arranged on the connection circuit between the driving motor and the power supply, a control switch (1) is arranged on the slide plate (20), and the electromagnetic switch (1) is connected to the control switch (1).

8. A copper wire drawing machine for cable production according to claim 7, characterized in that: The control switch 1 comprises a metal sheet (22) fixedly mounted on the outer peripheral surface of the slide sheet 1 (20), a metal rod (23) fixedly mounted in the slide groove 1 (21), and a resistance wire (24) in contact with the metal sheet (22); the metal sheet (22) is slidably connected to the metal rod (23).

9. A copper wire drawing machine for cable production according to claim 7 or 8, characterized in that: The electromagnetic switch 1 is connected to the control switch 1 through a comparator and a relay.

10. A copper wire drawing machine for cable production according to claim 7, characterized in that: The inner tower (2) is provided with a sliding vane 2 for sliding movement between the filtering chamber (8) and the liquid outlet chamber (8); an electromagnetic switch 2 is provided on the connection circuit between the driving motor and the power supply, a control component 2 is provided on the sliding vane 2, and the electromagnetic switch 2 is connected to the control component 2.

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