Direct-current dryer

Abstract

A direct current dryer belongs to the technical field of wire drying devices and comprises at least two pairs of wire passing wheel assemblies. And each pair of wire passing wheel assemblies comprises a wire passing wheel assembly communicated with the positive electrode of the direct-current power supply and a wire passing wheel assembly communicated with the negative electrode of the direct-current power supply. The metal wire sequentially bypasses the two pairs of wire passing wheels, and after current is conducted to the metal wire, the conductive and heating distance of the metal wire is long, so that the metal wire is uniformly heated and quickly dried, the metal wires of different types, specifications and wire speeds are dried, and the metal wire drying device has the advantages of being simple in structure, convenient to operate, low in maintenance cost and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of wire material drying devices, in particular to a direct current drying machine. Background Art

[0002] After washing, the metal wire needs to be dried. The purpose of drying is to remove moisture from the surface of the wire to make it clean and smooth. The traditional method of drying metal wires usually uses a high-temperature drying box to dry it through the principles of radiation and convection heating. However, this method takes a long time to dry, and increasing the drying temperature will lead to problems such as energy waste and bearing heating.

[0003] There is also a solution disclosed in the Chinese patent application number 202010857499.3, which heats the metal wire through the principle of high-frequency induction. However, this heating solution requires high equipment cost and a short heating distance, resulting in a high heating temperature, which can easily lead to adverse effects on the properties of the metal wire.

[0004] Therefore, it is necessary to develop a drying machine to ensure that the metal wire is completely dried without overheating the metal wire. Utility Model Content

[0005] The purpose of the utility model is to provide a DC drying machine to solve the above technical problems.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The DC dryer comprises at least two pairs of wire-passing wheel assemblies; each pair of wire-passing wheel assemblies comprises a wire-passing wheel assembly connected to the positive pole of a DC power supply and a wire-passing wheel assembly connected to the negative pole of the DC power supply.

[0008] Furthermore, the DC dryer includes a wire entry guide wheel arranged along the advancing direction of the metal wire, at least two pairs of wire passing wheel assemblies and a wire exit guide wheel.

[0009] Furthermore, the wire-passing wheel assembly is provided with a wire-passing wheel and a carbon brush assembly; when the carbon brush assembly is connected to a DC power supply, the current passes through the carbon brush assembly and the wire-passing wheel and is then conducted to the metal wire on the wire-passing wheel.

[0010] Furthermore, the DC dryer includes an inlet guide wheel arranged along the advancing direction of the metal wire, a first positive wire passing wheel assembly, a first negative wire passing wheel assembly, a second positive wire passing wheel assembly, a second negative wire passing wheel assembly and an outlet guide wheel.

[0011] Furthermore, the wire passing wheel assembly includes a rotating shaft, a bearing seat, an insulating wheel core, a wire passing wheel, a collector ring and a carbon brush assembly; the rotating shaft is rotatably installed on the DC dryer through the bearing seat; the rotating shaft is fixedly installed with an insulating wheel core; the wire passing wheel is fixedly sleeved on the insulating wheel core and the wire passing wheel is fixedly installed with a collector ring; the collector ring and the carbon brush assembly are in contact with each other; the carbon brush assembly is connected to a DC power supply.

[0012] Furthermore, in each pair of wire-passing wheel assemblies, the carbon brush assembly of one wire-passing wheel assembly is connected to the positive pole of the DC power supply, and the carbon brush assembly of the other wire-passing wheel assembly is connected to the negative pole of the DC power supply; the current passes through the carbon brush assembly, the collector ring and the wire-passing wheel, and is conducted to the metal wire on the wire-passing wheel.

[0013] Furthermore, the voltage of the DC power supply is a safe voltage and does not exceed 36V.

[0014] Furthermore, the number of turns of the metal wire wound around each wire wheel does not exceed 1 turn.

[0015] The beneficial effects of the utility model are:

[0016] 1. This solution adopts at least two pairs of wire-passing wheel assemblies, and the metal wire passes around the two pairs of wire-passing wheels in turn. Since the distance for the metal wire to conduct electricity and generate heat is long after the current is transmitted to the metal wire, the heating temperature of the metal wire can be kept at a lower temperature. By extending the heating distance, it is ensured that the metal wire is completely dried and will not be overheated.

[0017] 2. As a preference, the number of turns of the metal wire on each wire wheel does not exceed 1, so that the temperature of the metal wire heating can be better controlled. If the metal wire is wound multiple times on the wire wheel assembly, the metal wires with different inner and outer turns will have different resistances due to different moisture content or temperature, which will lead to different heating temperatures of the metal wires with different inner and outer turns, affecting the consistency of the metal wire properties; in addition, the tension of the metal wires with different inner and outer turns is different, which is prone to poor contact, thus affecting the drying effect.

[0018] 3. As a preferred option, the voltage of the DC power supply used in this solution is a safe voltage, not exceeding 36V, thereby improving the safety of the equipment. This solution can achieve an ideal drying effect by extending the heating distance even if the DC voltage is set to a safe voltage.

[0019] 4. This solution realizes uniform heating and rapid drying of metal wires, and can dry metal wires of different types, specifications and wire speeds. It has the advantages of simple structure, easy operation and low maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the front view of the utility model;

[0021] Figure 2 yes Figure 1 Sectional view of the AA plane;

[0022] In the figure: the incoming wire guide wheel 1, the first positive wire passing wheel assembly 2, the first negative wire passing wheel assembly 3, the second positive wire passing wheel assembly 4, the second negative wire passing wheel assembly 5; the outgoing wire guide wheel 6; the rotating shaft 201, the bearing seat 202, the insulating wheel core 203, the wire passing wheel 204, the collector ring 205, and the carbon brush assembly 206. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] The DC dryer comprises an inlet guide wheel 1 arranged along the advancing direction of the metal wire, at least two pairs of wire passing wheel assemblies and an outlet guide wheel 6. If necessary, other guide wheels, such as ordinary wire passing wheels or tension wheels, can be arranged between the above guide wheels.

[0025] Each pair of wire-passing wheel assemblies includes a wire-passing wheel assembly connected to the positive pole of a DC power supply and a wire-passing wheel assembly connected to the negative pole of the DC power supply.

[0026] The wire passing wheel assembly is provided with a wire passing wheel 204 and a carbon brush assembly 206. When the carbon brush assembly 206 is connected to a DC power supply, the current passes through the carbon brush assembly 206 and the wire passing wheel 204 and is then conducted to the metal wire on the wire passing wheel 204.

[0027] Since the metal wire has resistance, when current passes through the metal wire between the positive electrode wire passing wheel assembly and the negative electrode wire passing wheel assembly, the metal wire generates heat, thereby achieving the effect of drying the metal wire.

[0028] Furthermore, the wire-passing wheel assembly includes a rotating shaft 201 , a bearing seat 202 , an insulating wheel core 203 , a wire-passing wheel 204 , a collector ring 205 and a carbon brush assembly 206 .

[0029] The rotating shaft 201 is rotatably mounted on the DC dryer through the bearing seat 202; a bearing is provided between the bearing seat 202 and the rotating shaft 201. The rotating shaft 201 is fixedly mounted with an insulating wheel core 203; the wire passing wheel 204 is fixedly sleeved on the insulating wheel core 203 and a collector ring 205 is fixedly mounted on the wire passing wheel 204; the collector ring 205 is in contact with the carbon brush assembly 206; and the carbon brush assembly 206 is connected to a DC power supply.

[0030] In each pair of wire-passing wheel assemblies, the carbon brush assembly 206 of one wire-passing wheel assembly is connected to the positive pole of the DC power supply, and the carbon brush assembly 206 of the other wire-passing wheel assembly is connected to the negative pole of the DC power supply. The current passes through the carbon brush assembly 206, the collector ring 205 and the wire-passing wheel 204, and is conducted to the metal wire on the wire-passing wheel 204.

[0031] After the carbon brush assembly is connected to the power supply, the current passes through the carbon brush assembly and the wire-passing wheel and is then conducted to the metal wire on the wire-passing wheel. Due to the resistance of the metal wire, when the current passes through the metal wire between the positive wire-passing wheel assembly and the negative wire-passing wheel assembly, the metal wire heats up, thereby achieving the effect of drying the metal wire.

[0032] Since an insulating wheel core 203 is provided between the rotating shaft 201 and the wire passing wheel 204, the rotating shaft 201 is not electrified during actual use, and the current will not leak to the frame, thereby improving production safety.

[0033] The voltage of the DC power supply used in this solution is a safe voltage, not exceeding 36V, thereby improving the safety of the equipment. This solution can achieve the ideal drying effect even if the DC voltage is set to a safe voltage by extending the heating distance.

[0034] This solution adopts at least two pairs of wire-passing wheel assemblies, and the metal wire passes around the two pairs of wire-passing wheels in sequence. Since the distance for the metal wire to conduct electricity and generate heat is long after the current is transmitted to the metal wire, the heating temperature of the metal wire can be maintained at a lower temperature. By extending the heating distance, it is ensured that the metal wire is completely dried and will not be overheated.

[0035] As a preference, this embodiment uses two pairs of wire passing wheel assemblies. Figure 1 As shown, along the advancing direction of the metal wire, the DC dryer includes an inlet wire guide wheel 1, a first positive wire passing wheel assembly 2, a first negative wire passing wheel assembly 3, a second positive wire passing wheel assembly 4, a second negative wire passing wheel assembly 5, and an outlet wire guide wheel 6. Figure 1 In the process, the metal wire passes through the wire-entry guide wheel 1, winds around the first positive wire-passing wheel assembly 2 for half a circle, is introduced into the first negative wire-passing wheel assembly 3 for half a circle, is introduced into the second positive wire-passing wheel assembly 4 for half a circle, is then introduced into the second negative wire-passing wheel assembly 5 for half a circle, and finally is led out through the wire-out guide wheel 6.

[0036] Preferably, the number of turns of the metal wire on each wire wheel does not exceed 1, so that the temperature of the metal wire heating can be better controlled. If the metal wire is wound multiple times on the wire wheel assembly, the metal wire with inner and outer turns will have different resistances due to different moisture content or temperature, which will lead to different heating temperatures of the metal wire with inner and outer turns, affecting the consistency of the metal wire properties; in addition, the tension of the metal wire with inner and outer turns is different, which is prone to poor contact, thus affecting the drying effect.

[0037] The present invention is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements shall all fall within the scope of the present invention to be protected.

Claims

1. DC drying machine, characterized in that: It comprises at least two pairs of wire-passing wheel assemblies; each pair of wire-passing wheel assemblies comprises a wire-passing wheel assembly connected to the positive pole of a DC power supply and a wire-passing wheel assembly connected to the negative pole of the DC power supply.

2. The DC drying machine according to claim 1, characterized in that: It comprises an inlet guide wheel (1) arranged along the advancing direction of the metal wire, at least two pairs of wire passing wheel assemblies and an outlet guide wheel (6).

3. The DC drying machine according to claim 2, characterized in that: The wire-passing wheel assembly is provided with a wire-passing wheel (204) and a carbon brush assembly (206); when the carbon brush assembly (206) is connected to a direct current power source, the current passes through the carbon brush assembly (206) and the wire-passing wheel (204) and is then conducted to the metal wire on the wire-passing wheel (204).

4. The DC drying machine according to claim 1, 2 or 3, characterized in that: It comprises an inlet guide wheel (1) arranged along the advancing direction of the metal wire, a first positive electrode wire passing wheel assembly (2), a first negative electrode wire passing wheel assembly (3), a second positive electrode wire passing wheel assembly (4), a second negative electrode wire passing wheel assembly (5) and an outlet guide wheel (6).

5. The DC drying machine according to claim 4, characterized in that: The wire-passing wheel assembly comprises a rotating shaft (201), a bearing seat (202), an insulating wheel core (203), a wire-passing wheel (204), a collector ring (205) and a carbon brush assembly (206); The rotating shaft (201) is rotatably mounted on the DC dryer via a bearing seat (202); an insulating wheel core (203) is fixedly mounted on the rotating shaft (201); the wire passing wheel (204) is fixedly sleeved on the insulating wheel core (203) and a collector ring (205) is fixedly mounted on the wire passing wheel (204); the collector ring (205) and the carbon brush assembly (206) are in contact with each other; and the carbon brush assembly (206) is connected to a DC power supply.

6. The DC drying machine according to claim 5, characterized in that: In each pair of wire-passing wheel assemblies, the carbon brush assembly (206) of one wire-passing wheel assembly is connected to the positive electrode of a DC power supply, and the carbon brush assembly (206) of the other wire-passing wheel assembly is connected to the negative electrode of the DC power supply; the current passes through the carbon brush assembly (206), the collector ring (205) and the wire-passing wheel (204), and is conducted to the metal wire on the wire-passing wheel (204).

7. The DC drying machine according to claim 6, characterized in that: The voltage of the DC power supply is a safe voltage and does not exceed 36V.

8. The DC drying machine according to claim 5, characterized in that: The number of turns of the metal wire wound on each wire passing wheel (204) does not exceed 1 turn.

Images