Waste wire recovery device of low-speed wire cutting machine

Abstract

The utility model relates to the technical field of wire cutting machines, and discloses a low-speed wire cutting machine waste wire recovery device which comprises a machining groove, a traction mechanism is arranged at one end of the inner side of the machining groove, a wire guide pipe is fixedly connected to the other end of the inner side of the machining groove, and a recovery box is fixedly connected to the outer side of the traction mechanism. A wire collecting mechanism is arranged on the inner side of the recycling box, a cleaning mechanism is arranged at the top end of the wire guiding pipe and comprises a liquid collecting sleeve, the liquid collecting sleeve is arranged on the outer side of the cutting wire in a sleeving mode, a backflow pipe is fixedly connected to the bottom of the liquid collecting sleeve, and the bottom end of the backflow pipe communicates with the interior of the machining groove; the elastic scraping strips are distributed around the inner wall of the liquid collecting sleeve at equal angles, and one end of each elastic scraping strip abuts against the outer surface of the cutting wire. According to the device, the processing liquid on the cutting wire can be cleaned and is guided into the processing groove again through the return pipe, so that the problem of waste of the processing liquid can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of wire cutting machine technology, and more specifically, to a waste wire recycling device for a slow wire cutting machine. Background Technology

[0002] The difference between slow wire EDM machines and medium and fast wire EDM machines is that the cutting wire used for processing is disposable. Generally, an active traction device is set up outside the processing tank to pull the cutting wire directly into the waste wire box. Because slow wire EDM is a processing fluid immersion process, processing fluid will also leak out of the hole at the wire exit, which will cause waste of processing fluid.

[0003] In this regard, Chinese Patent Publication No. CN221984090U discloses "a waste wire recycling device for a slow wire EDM machine, including a processing tank, a workpiece immersed in the processing fluid in the processing fluid, a wire feed nozzle below the workpiece, a wire cutting traction wheel below the wire feed nozzle to pull the wire downward, a wire guide tube arranged at an incline to guide the waste wire out of the processing tank and into a waste wire box, the inlet of the wire guide tube is below the active traction wheel, the outlet height is above the processing fluid surface, and a wire cutting guide mechanism guides the wire into the inlet of the wire guide tube".

[0004] The aforementioned patent uses a guide tube with an inclined arrangement and an outlet higher than the liquid level in the processing tank to guide the waste cutting wire out of the processing tank. Although this can prevent the processing fluid from leaking out through the wire outlet, some processing fluid will adhere to the waste cutting wire because it is immersed in the processing fluid during cutting. After the waste cutting wire is discharged, some processing fluid will also be discharged, which will also cause waste of processing fluid. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a waste wire recycling device for slow wire EDM machines, which solves the problem that the processing fluid is carried out when the waste wire is discharged, resulting in waste of processing fluid.

[0006] This utility model provides the following technical solution: a waste wire recycling device for a slow wire EDM machine, comprising a processing tank for filling with processing fluid, a traction mechanism for pulling the cutting wire is provided at one end of the inner side of the processing tank, a guide tube sleeved on the outside of the cutting wire is fixedly connected to the other end of the inner side of the processing tank, a recycling box is fixedly connected to the outside of the traction mechanism, a winding mechanism for winding the cutting wire is provided inside the recycling box in conjunction with the activation of the traction mechanism, a cleaning mechanism is provided at the top of the guide tube, the cleaning mechanism includes a liquid collecting sleeve, the liquid collecting sleeve is sleeved on the outside of the cutting wire, a return pipe communicating with the inside of the liquid collecting sleeve is fixedly connected to the bottom of the liquid collecting sleeve, the bottom end of the return pipe is connected to the inside of the processing tank, and a plurality of elastic scrapers are fixedly connected to one end of the inner side of the liquid collecting sleeve, the plurality of elastic scrapers are distributed at equal angles around the inner wall of the liquid collecting sleeve, and one end of each of the plurality of elastic scrapers is in contact with the outer surface of the cutting wire.

[0007] As a preferred embodiment of this utility model, the traction mechanism includes two parallel traction wheels, both of which are rotatably connected to the inner side of the processing groove.

[0008] As a preferred embodiment of this utility model, the traction mechanism further includes a motor, which is fixedly installed on the outside of the processing groove. The output shaft of the motor is fixedly connected to one of the traction wheels, and a transmission gear is coaxially fixedly connected to the same end of both traction wheels. The two transmission gears mesh with each other.

[0009] As a preferred embodiment of this utility model, the take-up mechanism includes a guide wheel, which is rotatably connected to the top of the recycling box, and a take-up wheel for winding the cut wire is rotatably connected to the bottom of the inner side of the recycling box.

[0010] As a preferred technical solution of this utility model, the take-up mechanism further includes a pulley one, which is coaxially and fixedly connected to the take-up wheel, and the output shaft of the motor is also fixedly connected to a pulley two, which is connected to the pulley one via belt drive.

[0011] As a preferred technical solution of this utility model, a guide mechanism is provided below the two traction wheels. The guide mechanism includes an arc-shaped plate, which is fixedly connected to the inner side of the processing groove. Guide wheels are rotatably connected to both ends of the arc-shaped plate.

[0012] As a preferred embodiment of this utility model, the arc of the arc plate is 90 degrees, and the guide wheel at the top of the arc plate is located between the two traction wheels.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: During recycling, the cutting wire is pulled by the traction mechanism and wound up by the winding mechanism, so that the cutting wire is introduced into the liquid collection sleeve from the outlet of the guide tube. Since one end of the elastic scraper is in contact with the outer surface of the cutting wire, the cutting wire slides relative to the elastic scraper during winding, so that the elastic scraper scrapes off the processing fluid attached to the cutting wire. As the processing fluid accumulates, it drips to the bottom of the liquid collection sleeve under the action of gravity, and is finally reintroduced into the processing tank through the return pipe. This process can avoid the problem of the cutting wire draining the processing fluid and wasting the processing fluid. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a waste wire recycling device for a slow wire EDM machine according to the present invention. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the structure of a waste wire recycling device for a slow wire EDM machine according to the present invention. Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the cleaning mechanism of this utility model;

[0017] Figure 4 This is a schematic diagram of the winding mechanism of this utility model;

[0018] Figure 5 This is a partial structural schematic diagram of the present invention;

[0019] Figure 6 This is a schematic diagram of the guiding mechanism of this utility model.

[0020] In the diagram: 1. Processing groove; 2. Traction mechanism; 21. Traction wheel; 22. Transmission gear; 23. Motor; 3. Guiding mechanism; 31. Arc plate; 32. Guide wheel two; 4. Wire cutter; 5. Wire guide tube; 6. Recovery box; 7. Wire take-up mechanism; 71. Guide wheel one; 72. Wire take-up wheel; 73. Pulley one; 74. Pulley two; 8. Cleaning mechanism; 81. Liquid collection sleeve; 82. Elastic scraper; 83. Return pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 6As shown, this utility model provides a waste wire recycling device for a slow wire EDM machine, including a processing tank 1 for filling with processing fluid, a traction mechanism 2 for pulling the cutting wire 4 at one end of the inner side of the processing tank 1, a wire guide tube 5 fixedly connected to the other end of the inner side of the processing tank 1 and sleeved on the outside of the cutting wire 4, a recycling box 6 fixedly connected to the outside of the traction mechanism 2, and a winding mechanism 7 for winding the cutting wire 4 by cooperating with the activation of the traction mechanism 2, and the wire guide tube 5. The top of the device is equipped with a cleaning mechanism 8, which includes a liquid collection sleeve 81. The liquid collection sleeve 81 is sleeved on the outside of the cutting wire 4. The bottom of the liquid collection sleeve 81 is fixedly connected to a return pipe 83 that communicates with the inside of the liquid collection sleeve 81. The bottom end of the return pipe 83 is connected to the inside of the processing tank 1. A number of elastic scrapers 82 are fixedly connected to one end of the inner side of the liquid collection sleeve 81. The number of elastic scrapers 82 are distributed at equal angles around the inner wall of the liquid collection sleeve 81. One end of each of the elastic scrapers 82 is in contact with the outer surface of the cutting wire 4.

[0023] During recycling, the traction mechanism 2 pulls the cutting wire 4, while the winding mechanism 7 winds the cutting wire 4, so that the cutting wire 4 is introduced into the liquid collection sleeve 81 from the outlet of the guide tube 5. Since one end of the elastic scraper 82 is in contact with the outer surface of the cutting wire 4, the cutting wire 4 slides relative to the elastic scraper 82 during winding, so that the elastic scraper 82 scrapes off the processing fluid attached to the cutting wire 4. As the processing fluid accumulates, it drips to the bottom of the liquid collection sleeve 81 under the action of gravity, and finally is reintroduced into the processing tank 1 through the return pipe 83. This process can avoid the problem of the cutting wire 4 exporting the processing fluid and wasting the processing fluid.

[0024] The traction mechanism 2 includes two parallel traction wheels 21, both rotatably connected to the inner side of the processing groove 1. A motor 23 is fixedly installed on the outer side of the processing groove 1, and the output shaft of the motor 23 is fixedly connected to one of the traction wheels 21. A transmission gear 22 is coaxially fixedly connected to the same end of each of the two traction wheels 21, and the two transmission gears 22 mesh with each other. By starting the motor 23, one of the traction wheels 21 is driven, and under the transmission action of the two transmission gears 22, the two transmission gears 22 can rotate in opposite directions. This allows the wire 4 to be pulled during recycling, ensuring that the wire 4 can be smoothly guided into the recycling box 6.

[0025] The take-up mechanism 7 includes a guide wheel 71, which is rotatably connected to the top of the recycling box 6. The bottom of the inner side of the recycling box 6 is rotatably connected to a take-up wheel 72 for winding the wire 4. The take-up wheel 72 is coaxially fixedly connected to a pulley 73. The output shaft of the motor 23 is also fixedly connected to a pulley 74. The pulley 74 and the pulley 73 are connected by belt drive.

[0026] By starting the motor 23, the pulley 2 74 is driven to rotate, which causes the pulley 1 73 to rotate synchronously. This causes the take-up wheel 72 to rotate synchronously and take up the cut wire 4. This can prevent the cut wire 4 from getting tangled after being introduced into the recycling box 6, which would cause difficulties in subsequent processing.

[0027] Below the two traction wheels 21, a guide mechanism 3 is provided. The guide mechanism 3 includes an arc-shaped plate 31, which is fixedly connected to the inner side of the processing groove 1. Guide wheels 32 are rotatably connected to both ends of the arc-shaped plate 31. The arc of the arc-shaped plate 31 is 90 degrees, and the guide wheel 32 at the top of the arc-shaped plate 31 is located between the two traction wheels 21. The arc-shaped plate 31 can guide the direction of the cutting wire 4, and at the same time, it works with the guide wheel 32 to smoothly guide the cutting wire 4 into the wire guide tube 5.

[0028] Working principle: During recycling, the motor 23 drives one of the traction wheels 21. Under the transmission action of the two transmission gears 22, the two transmission gears 22 can rotate in opposite directions. This can pull the wire 4 to be recycled, so that the wire 4 can be smoothly introduced into the recycling box 6. At the same time, the motor 23 drives the pulley 2 74 to rotate, so that the pulley 1 73 rotates synchronously. This makes the take-up wheel 72 rotate synchronously and wind up the wire 4. This can avoid the wire 4 from getting tangled after entering the recycling box 6, which would cause difficulties in subsequent processing.

[0029] Meanwhile, when the cutting wire 4 is wound up, it is introduced into the liquid collection sleeve 81 from the outlet of the guide tube 5. Since one end of the elastic scraper 82 is in contact with the outer surface of the cutting wire 4, the cutting wire 4 slides relative to the elastic scraper 82 when it is wound up, so that the elastic scraper 82 scrapes off the processing fluid attached to the cutting wire 4. As the processing fluid accumulates, it drips to the bottom of the liquid collection sleeve 81 under the action of gravity, and finally is reintroduced into the processing tank 1 through the return pipe 83. This process can avoid the problem of the cutting wire 4 exporting the processing fluid and wasting the processing fluid.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waste wire recycling device for a slow wire EDM machine, comprising a processing tank (1) for filling with processing fluid, wherein a traction mechanism (2) for pulling the cutting wire (4) is provided at one end of the inner side of the processing tank (1), and a guide tube (5) sleeved on the outside of the cutting wire (4) is fixedly connected to the other end of the inner side of the processing tank (1), characterized in that: A recycling box (6) is fixedly connected to the outside of the traction mechanism (2). A winding mechanism (7) is provided inside the recycling box (6) to wind up the wire (4) by cooperating with the start of the traction mechanism (2). A cleaning mechanism (8) is provided at the top of the wire guide tube (5). The cleaning mechanism (8) includes a liquid collection sleeve (81). The liquid collection sleeve (81) is sleeved on the outside of the wire (4). A return pipe (83) communicating with the inside of the liquid collection sleeve (81) is fixedly connected to the bottom of the liquid collection sleeve (81). The bottom end of the return pipe (83) is connected to the inside of the processing groove (1). A plurality of elastic scrapers (82) are fixedly connected to one end of the inner side of the liquid collection sleeve (81). The plurality of elastic scrapers (82) are distributed at equal angles around the inner wall of the liquid collection sleeve (81). One end of each of the elastic scrapers (82) is in contact with the outer surface of the wire (4).

2. The waste wire recycling device for a slow wire EDM machine according to claim 1, characterized in that: The traction mechanism (2) includes two parallel traction wheels (21), both of which are rotatably connected to the inside of the processing groove (1).

3. The waste wire recycling device for a slow wire EDM machine according to claim 2, characterized in that: The traction mechanism (2) also includes a motor (23), which is fixedly installed on the outside of the processing groove (1). The output shaft of the motor (23) is fixedly connected to one of the traction wheels (21). Both traction wheels (21) are coaxially fixedly connected to the same end with a transmission gear (22), and the two transmission gears (22) mesh with each other.

4. The waste wire recycling device for a slow wire EDM machine according to claim 3, characterized in that: The take-up mechanism (7) includes a guide wheel (71) which is rotatably connected to the top of the recycling box (6). The bottom of the inner side of the recycling box (6) is rotatably connected to a take-up wheel (72) for winding up the cut wire (4).

5. The waste wire recycling device for a slow wire EDM machine according to claim 4, characterized in that: The take-up mechanism (7) also includes a pulley (73), which is coaxially and fixedly connected to the take-up wheel (72). The output shaft of the motor (23) is also fixedly connected to a pulley (74), which is connected to the pulley (73) via belt drive.

6. The waste wire recycling device for a slow wire EDM machine according to claim 3, characterized in that: A guide mechanism (3) is provided below the two traction wheels (21). The guide mechanism (3) includes an arc plate (31), which is fixedly connected to the inner side of the processing groove (1). Guide wheels (32) are rotatably connected to both ends of the arc plate (31).

7. A waste wire recycling device for a slow wire EDM machine according to claim 6, characterized in that: The arc of the arc plate (31) is 90 degrees, and the guide wheel (32) at the top of the arc plate (31) is located between the two traction wheels (21).

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