Tungsten filament unwinding device

Abstract

The tungsten filament unwinding device comprises a supporting frame, a wire concentration structure and a wire unwinding structure, wherein the wire concentration structure and the wire unwinding structure are arranged on the supporting frame; the line concentration structure comprises a line concentration mounting plate arranged on the side face of the supporting frame and a line concentration wheel set arranged on the line concentration mounting plate. The wire concentration wheel sets comprise a plurality of wire concentration wheels which are sequentially arranged from the side face of the wire concentration mounting plate to the wire withdrawing structure, the wire concentration wheel sets are arranged on the side face of the wire concentration mounting plate in the vertical direction, and a wiring space for tungsten wires attached to the wire concentration wheels to be conveyed to the wire withdrawing structure is formed between every two adjacent wire concentration wheel sets; the wire withdrawing structure comprises a wire withdrawing mounting plate arranged on the side face of the supporting frame, a wire withdrawing wheel arranged on one side of the wire withdrawing mounting plate and a driving device arranged on the other side of the wire withdrawing mounting plate. And a driving shaft of the driving device penetrates through the wire withdrawing mounting plate to be connected with the wire withdrawing wheel, and drives the wire withdrawing wheel to rotate to convey the tungsten wire from the wire collecting wheel to the wire withdrawing wheel. According to the utility model, a plurality of wire collecting wheels correspond to one wire withdrawing wheel, and the wire withdrawing wheel is automatically driven by the driving device, so that high-efficiency and stable wire withdrawing is realized.

Description

Technical Field

[0001] This utility model belongs to the field of diamond wire manufacturing, and in particular relates to a tungsten wire unwinding device. Background Technology

[0002] In the current booming photovoltaic industry, the importance of diamond wire saws as a key tool for cutting crystalline silicon wafers is self-evident. A diamond wire saw is a cutting material in which diamond particles are uniformly attached to a metal wire. Leveraging the high hardness of diamond and the flexibility of the metal wire, it exhibits superior performance in cutting hard and brittle materials such as crystalline silicon. It is widely used in the manufacturing process of crystalline silicon wafers in the photovoltaic industry, playing a crucial role in improving wafer cutting accuracy and efficiency, and reducing production costs.

[0003] In the production process of diamond wire saws, the remaining cutting wire, also known as coiled wire, refers to the portion of the cutting wire that remains wound on the spool after a certain length of diamond wire has been produced. This remaining wire, due to insufficient length or other production factors, is no longer used in subsequent formal production processes but remains on the spool; hence, it is called coiled wire. During production, the required length of diamond wire for each task is determined based on the order or production process requirements. However, the actual length of wire wound on the spool may exceed the required length, or some wire may be left over during production due to various reasons (such as changing spools or adjusting the process). This excess wire forms the coiled wire.

[0004] However, in the production process of diamond wire saws, the handling of the wire guide wire has become increasingly prominent, becoming a significant factor restricting the improvement of production efficiency. Traditional methods often involve removing the I-beams carrying the wire guide wire and then burning it off with gas cutting. This method has many drawbacks. On the one hand, the gas cutting process is extremely time-consuming and labor-intensive, severely impacting production rhythm. On the other hand, the high temperature and impact generated by gas cutting can easily cause irreparable damage to the I-beams, significantly shortening their lifespan and increasing equipment maintenance costs. Especially when handling tungsten wire, due to its extremely high melting point, gas cutting is ineffective in burning it off, resulting in poor processing results. Residual tungsten wire still requires further cleaning, further increasing the difficulty and workload. While subsequent improvements have been made, such as removing the wire guide wire by rotating the I-beams, this method avoids damage to the I-beams during the burning process, but it doesn't fundamentally solve the problem of being labor-intensive and time-consuming. Operators still need to manually rotate the I-beams for extended periods or use simple mechanical devices, resulting in low efficiency and difficulty meeting the needs of large-scale production. Utility Model Content

[0005] The purpose of this invention is to provide a tungsten wire unwinding device to solve the technical problem of simultaneously and automatically unwinding the bottom wires of multiple I-beam reels.

[0006] To achieve the above objectives, the specific technical solution of the tungsten wire unwinding device of this utility model is as follows:

[0007] A tungsten wire unwinding device includes a support frame, a wire gathering structure and an unwinding structure disposed on the support frame;

[0008] The wire gathering structure includes a wire gathering mounting plate disposed on the side of the support frame, and a wire gathering wheel assembly disposed on the wire gathering mounting plate; the wire gathering wheel assembly includes a plurality of wire gathering wheels arranged sequentially along the side of the wire gathering mounting plate toward the wire unwinding structure, the wire gathering wheel assemblies are arranged vertically on the side of the wire gathering mounting plate, and a wire routing space is formed between adjacent wire gathering wheel assemblies for conveying the tungsten wire attached to the wire gathering wheel to the wire unwinding structure;

[0009] The unwinding structure includes an unwinding mounting plate disposed on the side of the support frame, an unwinding wheel disposed on one side of the unwinding mounting plate, and a driving device disposed on the other side of the unwinding mounting plate; the drive shaft of the driving device passes through the unwinding mounting plate and is connected to the unwinding wheel, driving the unwinding wheel to rotate and transport the tungsten wire from the collecting wheel to the unwinding wheel.

[0010] As a further improvement of this utility model, the adjacent hub wheel sets are inclined at a certain angle to the horizontal direction along the surface of the hub mounting plate.

[0011] As a further improvement of this utility model, the cable gathering wheel set consists of two sets, and the two sets of cable gathering wheel sets are inclined outward toward the cable unwinding structure to form a cable routing space with an opening that gradually increases in size toward the cable unwinding structure.

[0012] As a further improvement of this utility model, a hub mounting post is provided on the side of the hub mounting plate, and the hub wheel is sleeved on the hub mounting post to realize the installation on the hub mounting plate.

[0013] As a further improvement of this utility model, the hub mounting post includes a column body disposed on the hub mounting plate, and a pin that restricts the hub wheel on the column body from the end of the column body.

[0014] As a further improvement of this utility model, the unwinding wheel is sleeved on the drive shaft, and a detachable locking structure is provided on the outer side of the unwinding wheel along the outward direction of the drive shaft, the locking structure locking the unwinding wheel on the drive shaft.

[0015] As a further improvement of this utility model, the unwinding wheel includes a left half wheel and a right half wheel, which are detachably spliced ​​to form a groove for collecting tungsten wires, and the surfaces of the left half wheel and the right half wheel are inclined towards each other.

[0016] As a further improvement of this utility model, the cable mounting plate and the cable unmounting plate are arranged on the same side of the support frame.

[0017] As a further improvement of this utility model, the unwinding wheel is arranged on the unwinding mounting plate corresponding to the wiring space.

[0018] Beneficial effects:

[0019] Through the design of the wire feeding and unloading structures, tungsten filaments can be transported in an orderly manner from the wire feeding wheel assembly to the unloading wheel, achieving an automated unloading process. This significantly improves unloading efficiency and reduces manual operation and time costs. The rational arrangement of the wire feeding wheel assembly and its coordination with the unloading wheel ensures smooth transfer of tungsten filaments within the device, making the entire unloading process efficient and stable. Particularly noteworthy is its ability to simultaneously feed tungsten filaments from multiple wire feeding wheels to the unloading wheel, greatly increasing the unloading throughput and further shortening the time required to process large quantities of surplus tungsten filaments. This offers significant advantages in large-scale production scenarios, effectively improving production pace and capacity.

[0020] Adjacent wire feeder sets are inclined at a certain angle. In particular, the two sets of wire feeder sets are inclined outward to form a wire-carrying space with gradually increasing openings. This effectively avoids the tungsten wire from getting tangled and stuck during the conveying process, provides a good guiding path for the tungsten wire, improves the reliability of the device operation, and also optimizes the internal spatial layout of the device, making its structure more compact and reasonable.

[0021] The wire feeding reel is installed via a wire feeding mounting post. The pin design of the mounting post facilitates the installation, removal, and replacement of the wire feeding reel, making later maintenance and adjustment easier. The wire unloading reel uses a design that is sleeved on the drive shaft and equipped with a detachable locking structure. The design, consisting of a wire groove formed by the left and right halves of the reel, not only ensures the stability of the unloading reel during operation but also makes cleaning of the fully wound tungsten wire or performing maintenance extremely convenient, reducing maintenance difficulty and costs.

[0022] The wire feeding mounting plate and the wire unloading mounting plate are set on the same side of the support frame, and the wire unloading wheel is set in the corresponding wire routing space. This layout makes the structure of the whole device more compact, reduces energy loss and path deviation during the tungsten wire conveying process, ensures the coordinated working effect between the components of the wire unloading device, improves the adaptability of the device to different production environments and needs, and can better meet the actual operation requirements of tungsten wire unloading in industrial production. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a tungsten wire unwinding device according to the present invention;

[0024] The markings in the diagram are as follows: 1. Support frame; 2. Cable gathering structure; 21. Cable gathering mounting plate; 22. Cable gathering wheel assembly; 221. Cable gathering wheel; 23. Cable routing space; 24. Cable gathering mounting post; 241. Post body; 242. Pin; 3. Cable unloading structure; 31. Cable unloading mounting plate; 32. Cable unloading wheel; 321. Left half wheel; 322. Right half wheel; 33. Drive device; 4. Tungsten wire. Detailed Implementation

[0025] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0026] Implementation example:

[0027] like Figure 1 The tungsten wire unwinding device shown has a wire gathering structure 2 and a wire unwinding structure 3 arranged on the upper side of the support frame 1. The support frame 1 serves as the load-bearing body of the entire device, ensuring that it can firmly support the wire gathering structure 2 and the wire unwinding structure 3, and ensuring the stability of the entire device during operation.

[0028] In the cable collection structure 2, the cable collection mounting plate 21 is fixed to the upper side of the support frame 1 by bolts. The cable collection mounting posts 24 are arranged in two rows (corresponding to two sets of cable collection wheel groups 22) on the side of the cable collection mounting plate 21, and the two rows of cable collection mounting posts 24 are inclined outwards respectively. Between the two rows of cable collection mounting posts 24 is a cable routing space 23, which is triangular in shape with a gradually widening opening, opening towards the cable unloading wheel 32. The cable collection mounting post 24 includes a post body 241 and a pin 242. Both ends of the post body 241 have external thread structures. One end is fixed to the cable collection mounting plate 21 through an internal thread hole on the cable collection mounting plate 21. After the pin 242 is sleeved on the post body 241, the pin 242 is moved along the external thread of the shaft by a nut to the cable collection wheel 221 sleeved on the post body 241, thus fixing the cable collection wheel 221 to the post body 241. The cable-collecting wheel 221, which is mounted on the cable-collecting mounting plate 21 via the cable-collecting mounting post 24, is an I-beam wheel with a cable-collecting groove in the middle. The tungsten wire 4 is attached to the cable-collecting groove. The I-beam wheel with the coil bottom line connects the remaining tungsten wire 4 from the cable-running space 23 to the cable-retracting wheel 32. The tungsten wires 4 of multiple cable-collecting wheels 221 do not interfere with each other in the cable-running space 23 and eventually converge to the cable-retracting wheel 32.

[0029] In the unwinding structure 3, the unwinding mounting plate 31 is fixed to the upper side of the support frame 1 by bolts. The drive device 33 is fixedly installed on the back of the unwinding mounting plate 31. In this embodiment, the drive device 33 is a drive motor. The drive shaft passes through the unwinding mounting plate 31 and then exits. The unwinding wheel 32 is sleeved on the drive shaft. A locking structure is provided at the top of the drive shaft to limit the unwinding wheel 32 on the drive shaft from the outside. In this embodiment, the locking structure is a nut. The top of the drive shaft has an external thread structure. The nut presses the unwinding wheel 32 along the threaded section of the drive shaft. The drive motor drives the unwinding wheel 32 to rotate through the drive shaft. By outputting different speeds by the drive motor, the unwinding speed can be controlled. The unwinding wheel 32 is detachably assembled from a left half wheel 321 and a right half wheel 322. The left half wheel 321 and the right half wheel 322 are conical and their surfaces are inclined towards each other to form a wire collecting groove. After the wire is wound on the unwinding wheel 32, the tungsten wire 4 is removed by disassembling the two half wheels.

[0030] This invention utilizes a unique wire-gathering structure and a wire-unwinding structure working in synergy. In particular, multiple wire-gathering wheels can simultaneously feed tungsten wire to the unwinding wheel, significantly accelerating the unwinding speed. This allows for the processing of large quantities of surplus tungsten wire in a short time, significantly improving production efficiency and meeting the needs of large-scale production. Traditional gas cutting methods easily damage the I-beams, increasing equipment replacement costs. This device employs a gentle mechanical unwinding principle, avoiding damage to the I-beams from high temperatures and strong forces, extending their service life, reducing equipment maintenance costs, and minimizing downtime risks due to I-beam damage. Compared to rotating I-beams, the design and layout of the wire-gathering wheel assembly and unwinding wheel in this device are more scientific. The inclined wire-gathering wheel assembly creates a reasonable wire-running space, and the unwinding wheel works closely with the drive device to effectively prevent tungsten wire entanglement and jamming, ensuring a stable and continuous unwinding process and reducing time waste and material loss caused by unwinding failures. In terms of component installation and maintenance, the cable gathering wheel of this device is conveniently installed through the cable gathering mounting column, and the cable unloading wheel adopts a detachable splicing and locking structure, which facilitates loading, unloading, cleaning and maintenance, reduces labor intensity and technical difficulty, improves the convenience and operability of equipment maintenance, and reduces the time and labor costs of equipment maintenance.

[0031] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A tungsten wire unwinding device, characterized in that, Includes a support frame, a cable gathering structure and a cable unwinding structure mounted on the support frame; The wire gathering structure includes a wire gathering mounting plate disposed on the side of the support frame, and a wire gathering wheel assembly disposed on the wire gathering mounting plate; the wire gathering wheel assembly includes a plurality of wire gathering wheels arranged sequentially along the side of the wire gathering mounting plate toward the wire unwinding structure, the wire gathering wheel assemblies are arranged vertically on the side of the wire gathering mounting plate, and a wire routing space is formed between adjacent wire gathering wheel assemblies for conveying the tungsten wire attached to the wire gathering wheel to the wire unwinding structure; The unwinding structure includes an unwinding mounting plate disposed on the side of the support frame, an unwinding wheel disposed on one side of the unwinding mounting plate, and a driving device disposed on the other side of the unwinding mounting plate; the drive shaft of the driving device passes through the unwinding mounting plate and is connected to the unwinding wheel, driving the unwinding wheel to rotate and transport the tungsten wire from the collecting wheel to the unwinding wheel.

2. The tungsten wire unwinding device according to claim 1, characterized in that, The adjacent hub pulleys are arranged at a certain angle to the horizontal direction along the surface of the hub mounting plate.

3. The tungsten wire unwinding device according to claim 2, characterized in that, The cable tray assembly consists of two sets, both sets of which are inclined outward toward the cable unwinding structure, forming a cable routing space with an opening that gradually increases in size toward the cable unwinding structure.

4. The tungsten wire unwinding device according to claim 1, characterized in that, The side of the hub mounting plate is provided with a hub mounting post, and the hub wheel is sleeved on the hub mounting post to achieve installation on the hub mounting plate.

5. The tungsten wire unwinding device according to claim 4, characterized in that, The hub mounting post includes a column body disposed on the hub mounting plate, and a pin that restricts the hub wheel on the column body from the end of the column body.

6. The tungsten wire unwinding device according to claim 1, characterized in that, The unwinding wheel is sleeved on the drive shaft, and a detachable locking structure is provided on the outer side of the unwinding wheel along the direction of the drive shaft, the locking structure locking the unwinding wheel on the drive shaft.

7. The tungsten wire unwinding device according to claim 6, characterized in that, The unwinding wheel includes a left half-wheel and a right half-wheel, which are detachably spliced ​​together to form a groove for collecting tungsten wires, and the surfaces of the left half-wheel and the right half-wheel are inclined towards each other.

8. The tungsten wire unwinding device according to claim 1, characterized in that, The cable hub mounting plate and the cable retraction mounting plate are arranged on the same side of the support frame.

9. The tungsten wire unwinding device according to claim 1, characterized in that, The unwinding wheel is positioned on the unwinding mounting plate corresponding to the wiring space.

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