Electroannealing equipment for photovoltaic diamond wire drawing machine
By controlling the current heating of diamond wire using an electric annealing device, the problem of existing annealing equipment being affected by the external environment is solved, achieving stable annealing results and environmental protection, and improving the reliability of the equipment and the working environment.
Patent Information
- Application Number
- CN202423304545.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing photovoltaic diamond wire annealing equipment is susceptible to external environmental influences, resulting in unstable annealing effects. Furthermore, flame annealing generates high-temperature, dense smoke, which affects the environment and the lifespan of dust removal equipment.
An electric annealing device is used to heat the photovoltaic diamond wire by current between the upper and lower conductive wheels, achieving constant temperature control and avoiding the influence of the external environment. Dust is collected through an insulating coating and a dust collection box, reducing the generation of high-temperature flue gas.
It achieves stable annealing effect and environmental protection, avoids the generation of high-temperature flue gas, reduces the failure rate of dust removal equipment, and improves the comfort of the working environment and the service life of the equipment.
Smart Images
Figure CN223936559U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of photovoltaic diamond wire annealing technology, specifically to a photovoltaic diamond wire drawing electromechanical annealing equipment. Background Technology
[0002] Photovoltaic diamond wire is prone to work hardening during pressure processing, and the work hardening speed is relatively fast. In order to eliminate the degree of work hardening, stress relief annealing is generally used to improve the toughness of diamond wire. In order to make the diamond wire heat evenly and facilitate subsequent operations, the diamond wire needs to be annealed separately.
[0003] Currently, the annealing equipment used in diamond wire factories mainly employs gas, natural gas, chemical gas flames, and oxyhydrogen flames for annealing, a process known as oxidation annealing. These flame annealing methods are easily affected by ambient temperature, wind speed, and gas volume, leading to unstable annealing results. Furthermore, flame annealing generates large amounts of high-temperature smoke. When using dust removal equipment to treat this smoke, the induced draft fan continuously draws in high-temperature gas, causing the dust removal equipment to overheat, increasing its failure rate, reducing its lifespan, and resulting in a significant environmental impact. Utility Model Content
[0004] In view of the above-mentioned defects or deficiencies in the prior art, this application aims to provide a photovoltaic diamond wire drawing electromechanical annealing device that can maintain a stable annealing effect while protecting the environment;
[0005] The electric annealing equipment includes:
[0006] A housing having a mounting plate;
[0007] An upper conductive wheel and a lower conductive wheel are respectively disposed on the mounting plate along the height direction of the housing. The upper conductive wheel has a first sliding groove and the lower conductive wheel has a second sliding groove. The photovoltaic diamond wire first enters the electric annealing equipment from the bottom of the second sliding groove, slides upward along the arc surface of the second sliding groove, and then enters the bottom of the first sliding groove, and slides upward along the arc surface of the first sliding groove.
[0008] The upper and lower conductive wheels are equipped with a certain voltage. When the diamond wire is in contact with both the upper and lower conductive wheels simultaneously, the photovoltaic diamond wire generates current to heat and anneal it.
[0009] According to the technical solution provided in the embodiments of this application, an intermediate wheel is also provided on the mounting plate between the upper conductive wheel and the lower conductive wheel. The intermediate wheel has a third sliding groove. The photovoltaic diamond wire slides upward along the arc surface of the first sliding groove and then passes into the third sliding groove so as to be guided by the intermediate wheel to leave the electric annealing equipment.
[0010] According to the technical solution provided in the embodiments of this application, the upper conductive wheel has a first conductive shaft connected thereto; the housing has an installation space, and a first boss is provided on the back of the mounting plate within the installation space, a first bearing is installed on the first boss, and the first bearing is sleeved outside the first conductive shaft.
[0011] According to the technical solution provided in the embodiments of this application, the lower conductive wheel has a second conductive shaft connected thereto; a second boss is also provided on the back of the mounting plate in the mounting space, a second bearing is mounted on the second boss, and the second bearing is sleeved on the second conductive shaft.
[0012] According to the technical solution provided in the embodiments of this application, the first conductive shaft is connected to a first conductive slip ring, and the first conductive slip ring is connected to a transformer outside the installation space through a first connecting wire.
[0013] According to the technical solution provided in the embodiments of this application, the second conductive shaft is connected to a second conductive slip ring, and the second conductive slip ring is connected to the transformer through a second connecting wire.
[0014] According to the technical solution provided in the embodiments of this application, it also includes a signal generator, which is used to set the voltage values on the upper conductive wheel and the lower conductive wheel as required by the process.
[0015] According to the technical solution provided in the embodiments of this application, it also includes a power voltage regulator, which is connected to the signal generator and the transformer respectively. The power voltage regulator causes the secondary side of the transformer to output the corresponding voltage and current according to the settings of the signal generator.
[0016] According to the technical solution provided in the embodiments of this application, a dust collection box is installed on the mounting plate at the bottom of the upper conductive wheel.
[0017] According to the technical solution provided in the embodiments of this application, the surfaces of the upper conductive wheel and the lower conductive wheel, except for the areas in contact with the photovoltaic diamond wire, are provided with an insulating coating.
[0018] In summary, this application proposes a photovoltaic diamond wire drawing electro-annealing device, comprising: a housing, the housing having a mounting plate; an upper conductive wheel and a lower conductive wheel respectively disposed on the mounting plate along the height direction of the housing, the upper conductive wheel having a first sliding groove and the lower conductive wheel having a second sliding groove, the photovoltaic diamond wire first entering the electro-annealing device from the bottom of the second sliding groove, sliding upward along the arc surface of the second sliding groove, and then entering the bottom of the first sliding groove, and sliding upward along the arc surface of the first sliding groove; the upper and lower conductive wheels are carrying a certain voltage, and when the diamond wire simultaneously contacts the upper and lower conductive wheels, the photovoltaic diamond wire generates current to heat and anneal it.
[0019] Compared with the prior art, the beneficial effects of this application are as follows: The electric annealing equipment of this application achieves constant temperature control of photovoltaic diamond wire by controlling the current flowing through the diamond wire. This annealing method is not affected by the external wind speed and does not generate a large amount of high-temperature flue gas. It can still meet the requirements of diamond wire annealing process. The electric annealing equipment can effectively solve the discomfort caused by high summer temperatures, and does not consume fossil energy. It can effectively save energy, reduce emissions, and protect the environment and air quality. Attached Figure Description
[0020] Figure 1 This is a front view structural schematic diagram of the photovoltaic diamond wire drawing electromechanical annealing equipment provided in the embodiments of this application;
[0021] Figure 2 This is a side view of the photovoltaic diamond wire drawing electromechanical annealing equipment provided in an embodiment of this application;
[0022] Figure 3 This is a schematic diagram of the structure of the back of the mounting plate provided in an embodiment of this application.
[0023] The text labels in the image represent:
[0024] 1. Mounting plate; 2. Upper conductive wheel; 21. First sliding groove; 22. First conductive shaft; 3. Lower conductive wheel; 31. Second sliding groove; 32. Second conductive shaft; 4. Dust collection box; 5. Intermediate wheel; 6. First conductive slip ring; 7. Second conductive slip ring; 8. Housing; 9. First boss; 10. First bearing; 11. Second boss; 12. Second bearing; 13. First bearing seat; 14. Second bearing seat. Detailed Implementation
[0025] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.
[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0027] As mentioned in the background section, this application proposes a photovoltaic diamond wire drawing electromechanical annealing device to address the problems in the prior art. Please refer to [link / reference]. Figure 1 and Figure 2 As shown, it includes:
[0028] Housing 8, the housing 8 having mounting plate 1;
[0029] Specifically, the shell 8 is a hollow cuboid structure; the mounting plate 1 is a plate located in front of the shell 8;
[0030] The upper conductive wheel 2 and the lower conductive wheel 3 are respectively disposed on the mounting plate 1 along the height direction of the housing 8. The upper conductive wheel 2 has a first sliding groove 21 and the lower conductive wheel 3 has a second sliding groove 31. The photovoltaic diamond wire first enters the electric annealing equipment from the bottom of the second sliding groove 31, slides upward along the arc surface of the second sliding groove 31, and then enters the bottom of the first sliding groove 21 and slides upward along the arc surface of the first sliding groove 21.
[0031] Furthermore, an intermediate wheel 5 is provided on the mounting plate 1 between the upper conductive wheel 2 and the lower conductive wheel 3. The intermediate wheel 5 has a third sliding groove. The photovoltaic diamond wire slides upward along the arc-shaped surface of the first sliding groove 21 and then enters the third sliding groove so as to be guided by the intermediate wheel 5 to leave the electric annealing equipment.
[0032] Specifically, both the upper conductive wheel 2 and the lower conductive wheel 3 are circular copper wheels. Therefore, the first sliding groove 21 of the upper conductive wheel 2 and the second sliding groove 31 of the lower conductive wheel 3 have specific arc shapes to guide the sliding of the photovoltaic diamond wire. When the photovoltaic diamond wire enters the electro-annealing equipment from the previous process, it first contacts the second sliding groove 31 of the lower conductive wheel 3, and then, under the traction of the external traction device, reaches the first sliding groove 21 on the upper conductive wheel 2, and then reaches the third sliding groove of the intermediate wheel 5. The intermediate wheel 5 is located between the upper conductive wheel 2 and the lower conductive wheel 3, and is not located on the axis connecting the upper conductive wheel 2 and the lower conductive wheel 3, but on the right side of the axis connecting the axes. It is used to adjust the angle or direction of the photovoltaic diamond wire when it leaves the electro-annealing equipment, so that the wire (photovoltaic diamond wire) reaches the next station at a fixed angle. The angle at which the intermediate wheel 5 pulls the photovoltaic diamond wire cannot be too small, otherwise the wire is prone to breakage.
[0033] The upper conductive wheel 2 and the lower conductive wheel 3 are equipped with a certain voltage. When the diamond wire is in contact with both the upper conductive wheel 2 and the lower conductive wheel 3 at the same time, the photovoltaic diamond wire generates current to heat and anneal it.
[0034] In a preferred embodiment, please refer to Figure 3 As shown, the upper conductive wheel 2 has a first conductive shaft 22 connected to it; the housing 8 has an installation space, and a first boss 9 is provided on the back of the mounting plate 1 in the installation space. A first bearing 10 is installed on the first boss 9, and the first bearing 10 is sleeved on the outside of the first conductive shaft 22.
[0035] Specifically, the first bearing 10 is mounted on the first boss 9, and then the first bearing 10 is sleeved on the outside of the first conductive shaft 22. This ensures that the upper conductive wheel 2 can rotate smoothly, and at the same time, the connection with the external circuit is realized through the first conductive shaft 22. The first boss 9 is provided with a first bearing seat 13, and the first bearing 10 is installed in the first bearing seat 13.
[0036] In a preferred embodiment, the lower conductive wheel 3 has a second conductive shaft 32 connected thereto; a second boss 11 is also provided on the back of the mounting plate 1 within the mounting space, and a second bearing 12 is mounted on the second boss 11, the second bearing 12 being sleeved outside the second conductive shaft 32.
[0037] Specifically, similar to the upper conductive wheel 2, it ensures smooth rotation of the lower conductive wheel 3 and enables connection to the external circuit. The second boss 11 is provided with a second bearing seat 14, and a second bearing 12 is installed inside the second bearing seat 14.
[0038] In a preferred embodiment, the first conductive shaft 22 is connected to a first conductive slip ring 6, and the first conductive slip ring 6 is connected to a transformer outside the installation space via a first connecting wire.
[0039] Specifically, the first conductive shaft 22 is connected to the first conductive slip ring 6, and then the first conductive slip ring 6 is connected to the transformer outside the installation space via the first connecting wire. In this way, the current output by the transformer can be transmitted to the upper conductive wheel 2 through the first conductive slip ring 6 and the first conductive shaft 22.
[0040] In a preferred embodiment, the second conductive shaft 32 is connected to a second conductive slip ring 7, and the second conductive slip ring 7 is connected to the transformer via a second connecting wire.
[0041] Specifically, the second conductive shaft 32 is connected to the second conductive slip ring 7, and then the second conductive slip ring 7 is connected to the transformer through the second connecting wire. This allows the current output by the transformer to be transmitted to the lower conductive wheel 3, forming a current loop together with the upper conductive wheel 2 on the diamond wire.
[0042] In a preferred embodiment, a signal generator is further included, which is used to set the voltage values on the upper conductive wheel 2 and the lower conductive wheel 3 as required by the process.
[0043] Specifically, a signal generator is set up, and the operator can use the control panel or other input methods of the signal generator to set the voltage values that the upper conductive wheel 2 and the lower conductive wheel 3 should have according to the process requirements. The signal generator outputs the corresponding signal to the power voltage regulator according to the set value.
[0044] Furthermore, the voltage setting of the transformer secondary side output can be set to below 24V to ensure a safe voltage and prevent electrical damage to workers.
[0045] In a preferred embodiment, the system further includes a voltage regulator connected to both the signal generator and the transformer. The voltage regulator, according to the settings of the signal generator, causes the secondary side of the transformer to output corresponding voltage and current.
[0046] Specifically, the voltage regulator receives a signal from the signal generator and connects to the transformer. Based on the signal generator's settings, the voltage regulator adjusts the corresponding voltage and current output from the secondary side of the transformer, thereby controlling the voltage on the upper conductive wheel 2 and the lower conductive wheel 3, and consequently adjusting the current in the diamond wire to control the heating temperature.
[0047] Specifically, the working principle of this application is described below: The upper conductive wheel 2 (i.e., the upper copper wheel) and the lower conductive wheel 3 (i.e., the lower copper wheel) are connected to the transformer through the conductive slip ring, the copper shaft, and the wire. When the transformer outputs a specific voltage and current under the control of the power regulator and the signal generator, the upper and lower copper wheels form a conductive path with the transformer, thus carrying a certain voltage. When the photovoltaic diamond wire enters from the second sliding groove 31 of the lower copper wheel and then passes through the first sliding groove 21 of the upper copper wheel, the diamond wire simultaneously contacts both the upper and lower copper wheels. Since the upper and lower copper wheels have different potentials, a potential difference is formed on the diamond wire conductor. According to electrical principles, with the existence of a potential difference and the diamond wire being a conductor, current will flow through the diamond wire. The current flowing through the conductor generates heat, which raises the temperature of the photovoltaic diamond wire. By adjusting the voltage value set by the signal generator, and thus controlling the voltage and current output by the power regulator, the current flowing through the diamond wire can be adjusted, thereby controlling the temperature of the heated diamond wire. This process of heating diamond wire with heat generated by electric current is called annealing. The purpose is to eliminate stress generated during the diamond wire processing, improve its toughness, and repair surface defects.
[0048] In a preferred embodiment, a dust collection box 4 is installed on the mounting plate 1 at the bottom of the upper conductive wheel 2.
[0049] Specifically, select a dust collection box 4 of suitable material and size. The shape of the dust collection box 4 can be rectangular or other shapes suitable for installation on the mounting plate 1 and effective in collecting dust. The dust collection box 4 can be made of materials such as plastic or metal, ensuring it has sufficient strength and durability. Determine a suitable position for the bottom of the upper conductive wheel 2 on the mounting plate 1, and securely install the dust collection box 4 onto the mounting plate 1 using bolts, welding, or other fixing methods. The installation position should ensure that the dust collection box 4 can collect dust and impurities falling from near the upper conductive wheel 2 to the maximum extent. During the annealing process of the photovoltaic diamond wire through the upper conductive wheel 2, some tiny particles or dust may be generated due to friction or other reasons. This dust will fall off naturally or enter the dust collection box 4 under the action of airflow. Clean the dust collection box 4 regularly to prevent excessive dust accumulation from affecting the normal operation of the equipment.
[0050] In a preferred embodiment, the surfaces of both the upper conductive wheel 2 and the lower conductive wheel 3, except for the areas in contact with the photovoltaic diamond wire, are provided with an insulating coating.
[0051] Specifically, select appropriate insulating coating materials, such as insulating varnish or rubber coating. These materials should have good insulation properties, wear resistance, and high temperature resistance, and be able to play a stable insulating role for a long time in the working environment of diamond wire annealing to prevent workers from being electrocuted after contact.
[0052] Furthermore, this electric annealing equipment is suitable for annealing various tungsten, molybdenum wires and other metal wires. It is mainly used for drawing tungsten and molybdenum wires with a diameter of 0.4mm to 0.03mm, annealing at the midpoint (process point) of the drawing process, and completing wire rewinding in one operation. Basic parameters: Applicable materials: tungsten, molybdenum wires and other non-ferrous metals; Applicable wire diameter: 0.03mm-0.4mm; Number of electric rollers: 2; Drawing speed: 5~100m / min; Wire heating and annealing temperature: above 1200℃; Transformer power: 1KVA.
[0053] Furthermore, this utility model is specifically designed to address the shortcomings of existing annealing methods in the photovoltaic industry, such as high ambient temperature, incomplete dust removal, and susceptibility to environmental factors. It can be used in conjunction with existing diamond wire drawing machines, maintaining the existing machine structure with only simple modifications. It can achieve the effect of flame annealing, eliminating wire stress, improving the internal crystal structure of the wire, facilitating subsequent wire processing, and realizing high-speed, high-quality drawing of ultra-fine wires with a high yield. It adopts electric heating annealing, which has a good thermal effect, allows for rapid drying of graphite emulsion at high speed, saves electricity, provides good lubrication, and has low noise. This equipment does not require gas or electric furnace radiation heating, resulting in low energy consumption and significantly improving the comfort of the working environment.
[0054] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.
Claims
1. A photovoltaic diamond wire drawing electromechanical annealing equipment, characterized in that, include: Housing (8), the housing (8) having mounting plate (1); The upper conductive wheel (2) and the lower conductive wheel (3) are respectively disposed on the mounting plate (1) along the height direction of the housing (8). The upper conductive wheel (2) has a first sliding groove (21) and the lower conductive wheel (3) has a second sliding groove (31). The photovoltaic diamond wire first enters the electric annealing equipment from the bottom of the second sliding groove (31), slides upward along the arc surface of the second sliding groove (31), and then enters the bottom of the first sliding groove (21) and slides upward along the arc surface of the first sliding groove (21). The upper conductive wheel (2) and the lower conductive wheel (3) are equipped with a certain voltage. When the diamond wire is in contact with the upper conductive wheel (2) and the lower conductive wheel (3) at the same time, the photovoltaic diamond wire generates current to heat and anneal it.
2. The photovoltaic diamond wire drawing electromechanical annealing equipment according to claim 1, characterized in that: Between the upper conductive wheel (2) and the lower conductive wheel (3), an intermediate wheel (5) is also provided on the mounting plate (1). The intermediate wheel (5) has a third sliding groove. The photovoltaic diamond wire slides upward along the arc surface of the first sliding groove (21) and then enters the third sliding groove so as to be guided by the intermediate wheel (5) to leave the electric annealing equipment.
3. The photovoltaic diamond wire drawing electromechanical annealing equipment according to claim 1, characterized in that: The upper conductive wheel (2) has a first conductive shaft connected thereto; the housing (8) has an installation space, and a first boss (9) is provided on the back of the mounting plate (1) in the installation space. A first bearing (10) is installed on the first boss (9), and the first bearing (10) is sleeved on the outside of the first conductive shaft.
4. The photovoltaic diamond wire drawing electromechanical annealing equipment according to claim 3, characterized in that: The lower conductive wheel (3) has a second conductive shaft (32) connected to it; a second boss (11) is also provided on the back of the mounting plate (1) in the mounting space, and a second bearing (12) is installed on the second boss (11), and the second bearing (12) is sleeved on the second conductive shaft (32).
5. The photovoltaic diamond wire drawing electromechanical annealing equipment according to claim 4, characterized in that: The first conductive shaft is connected to a first conductive slip ring (6), and the first conductive slip ring (6) is connected to a transformer outside the installation space via a first connecting wire.
6. The photovoltaic diamond wire drawing electromechanical annealing equipment according to claim 5, characterized in that: The second conductive shaft (32) is connected to a second conductive slip ring (7), which is connected to the transformer via a second connecting wire.
7. The photovoltaic diamond wire drawing electromechanical annealing equipment according to claim 5, characterized in that: It also includes a signal generator, which is used to set the voltage values on the upper conductive wheel (2) and the lower conductive wheel (3) as required by the process.
8. The photovoltaic diamond wire drawing electromechanical annealing equipment according to claim 7, characterized in that: It also includes a voltage regulator, which is connected to the signal generator and the transformer respectively. The voltage regulator causes the secondary side of the transformer to output the corresponding voltage and current according to the settings of the signal generator.
9. The photovoltaic diamond wire drawing electromechanical annealing equipment according to claim 7, characterized in that: At the bottom of the upper conductive wheel (2), a dust collection box (4) is installed on the mounting plate (1).
10. The photovoltaic diamond wire drawing electromechanical annealing equipment according to claim 1, characterized in that: The surfaces of both the upper conductive wheel (2) and the lower conductive wheel (3), except for the areas that come into contact with the photovoltaic diamond wire, are provided with an insulating coating.