Multi-wire cutting machine

Abstract

The invention relates to the technical field of multi-wire cutting machines, and discloses a multi-wire cutting machine which comprises a cutting machine shell, a lifting seat and a plurality of wire arranging rollers are installed in a cutting chamber of the cutting machine shell, a plurality of cutting stations are arranged at the top end of the lifting seat, and a cooling liquid sprayer is arranged over the cutting stations. The two sides of the interior of the cutting machine shell are each provided with a winding and unwinding roller, a deviation rectifying wheel and a tensioning wheel set, and a cooling liquid circulating mechanism is arranged in the cutting machine shell. The cooling liquid circulating mechanism comprises a filtering box, and a filtering mechanism, a cooling liquid storage box and a filtering liquid temporary storage tank are arranged in the filtering box. Through innovative filtering switching and automatic cleaning design, the filtering precision, the operation efficiency and the maintenance cost are effectively balanced, and the device is particularly suitable for diversified cutting requirements of brittle materials such as jade and has remarkable practical value and popularization prospects.

Description

Technical Field

[0001] This invention relates to the field of multi-wire cutting machine technology, and more particularly to a multi-wire cutting machine. Background Technology

[0002] Multi-wire cutting machines are core equipment for high-precision cutting of brittle materials such as jade and silicon wafers. Their cutting efficiency and finished product quality are closely related to the performance of the coolant system. In existing technologies, the coolant circulation and filtration systems of multi-wire cutting machines generally suffer from the following problems:

[0003] Fixed filtration accuracy and poor adaptability: Traditional equipment often uses a combination of filter media with a single filtration accuracy, making it impossible to flexibly adjust the filtration level according to cutting conditions (such as roughing / fine cutting, materials of different hardness). During roughing, large particles of debris easily clog the fine filter media, leading to frequent shutdowns; during fine cutting, the coarse filter media cannot intercept fine powder, resulting in insufficient cleanliness of the coolant and scratches on the workpiece surface.

[0004] Cleaning and maintaining filter media is cumbersome: When the filter becomes clogged, it needs to be disassembled and cleaned manually, which is not only time-consuming but also interrupts the production process for a long time.

[0005] Insufficient automation: Manual intervention is required for filter material switching, cleaning, liquid level adjustment, etc., making it difficult to achieve continuous production. Furthermore, human operation is prone to affecting the stability of cutting accuracy due to inconsistent parameters.

[0006] To address the aforementioned problems, this invention proposes a multi-wire cutting machine integrating a switchable filter unit, automatic cleaning function, and high-efficiency circulation system, thereby improving equipment adaptability, reducing maintenance costs, and ensuring cutting quality. Summary of the Invention

[0007] To address the problems mentioned in the background section, the present invention provides a multi-wire cutting machine.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A multi-wire cutting machine includes a cutting machine housing. A lifting seat and multiple wire cutting rollers are installed inside the cutting chamber of the cutting machine housing. Multiple cutting stations are provided at the top of the lifting seat. A coolant sprayer is provided directly above the cutting stations. Take-up and release rollers, correction rollers and tensioning roller sets are provided on both sides of the inside of the cutting machine housing. A coolant circulation mechanism is provided inside the cutting machine housing.

[0010] The coolant circulation mechanism includes a filter box, which contains a filter mechanism, a coolant storage tank, and a filter temporary storage tank.

[0011] A coolant guiding groove is provided on one side of the cutting station. The coolant guiding groove is connected to the coolant guiding pipe. The coolant guiding pipe guides the collected coolant into the filter box and filters it through the filter mechanism. Then it is introduced into the coolant storage tank for reuse.

[0012] Preferably, a conveying auger is installed inside the coolant guide pipe. The conveying auger is driven to rotate by a first rotary motor. A recovery liquid conveying pipe is provided between the filter liquid temporary storage tank and the coolant storage tank. The recovered coolant is pumped back into the coolant storage tank by a liquid pump.

[0013] Preferably, a coolant outlet conduit is installed at the top of the coolant storage tank, and the coolant outlet conduit is connected to a coolant sprayer through a coolant guide branch for supplying coolant.

[0014] Preferably, the filtration mechanism includes a horizontal guide rail, which is fixed inside the filter box. A first slider is slidably mounted on the top end of the horizontal guide rail, and a lead screw is rotatably mounted on the top end of the horizontal guide rail. The lead screw passes through the first slider via a threaded hole and is driven to rotate by a second rotary motor.

[0015] Preferably, the first slider is connected to a filter and a filter flipping mechanism. The filter includes a first coarse filter frame, a second fine filter frame, a second coarse filter frame, and a first fine filter frame. An inclined guide plate is connected between the first coarse filter frame and the second fine filter frame. A second inclined guide plate is provided between the second coarse filter frame and the first fine filter frame. The diameter of the filter hole of the first coarse filter frame is larger than the diameter of the second coarse filter frame, and the diameter of the first fine filter frame is larger than the diameter of the first fine filter frame. The first coarse filter frame and the first fine filter frame are a group, and the second coarse filter frame and the second fine filter frame are a group. They are switched by flipping 180 degrees through the filter flipping mechanism.

[0016] Preferably, the filter flipping mechanism includes a flipping shaft, which is rotatably mounted on a first slider. A position adjustment box is fixed on one side of the first slider, and two second sliders are slidably mounted inside the position adjustment box. The second sliders are slidably mounted on a first slide rail.

[0017] Preferably, the two second sliders are fixed to the second fine filter frame and the first fine filter frame respectively, and a rack is fixed on the side of the two second sliders that are close to each other. A drive gear is provided between the two racks. The drive gear meshes with both drive gears and is driven to rotate by a third rotary motor.

[0018] Preferably, the end of the flipping shaft away from the position adjustment box passes through the first slider and a prism pin is horizontally and movably installed inside it. A flipping gear is fixed at the end of the prism pin away from the first slider, and a flipping rack is fixed at the end of the first slider near the second rotary motor.

[0019] Preferably, a third slider is slidably mounted on the top of the first slider via a second slide rail, a horizontal pusher is fixed on the third slider, a slot is provided at the bottom of the horizontal pusher, and the top of the flip gear extends movably into the slot.

[0020] Preferably, both ends of the horizontal guide rail are provided with guide members, and guide grooves are provided on the guide members. The top end of the third slider is fixed with a limit post, and the limit post is matched with the guide groove.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. Through the design of two sets of differentiated filtration units (a first coarse filter frame paired with a first fine filter frame, and a second coarse filter frame paired with a second fine filter frame), the filtration precision can be quickly switched according to cutting requirements (coarse cutting, fine cutting, material hardness). During coarse cutting, a combination of large-pore coarse filter and medium-fine filter is used to efficiently intercept large particles and debris; during fine cutting, the combination of medium-coarse filter and small-pore fine filter is switched to deeply remove fine powder, solving the problems of "over-filtration" or "under-filtration" in traditional equipment.

[0023] 2. The filter tilting mechanism (tilting shaft, gear and rack drive) works in conjunction with the horizontal movement system (screw and slider) to achieve 180° tilting of the filter unit for slag removal and automatic switching, eliminating the need for manual disassembly. The cleaning and cutting processes can be performed alternately, improving operational efficiency.

[0024] In summary, this invention, through its innovative filter switching and automatic cleaning design, effectively balances filtration accuracy, operating efficiency, and maintenance costs. It is particularly suitable for the diverse cutting needs of brittle materials such as jade, and has significant practical value and promising prospects for promotion. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the internal structure of the cutting chamber of the cutting machine housing of the present invention;

[0027] Figure 2 This is an external view of the cutting machine housing of the present invention;

[0028] Figure 3 This is a side-view sectional view of the cutting machine housing of the present invention;

[0029] Figure 4This is a cross-sectional view of the filter box of the present invention;

[0030] Figure 5 This is a first-view structural diagram of the internal structure of the filter box of the present invention;

[0031] Figure 6 This is a schematic diagram of the internal structure of the filter box of the present invention from a second perspective.

[0032] Figure 7 This is a first-view perspective perspective view of the filter of the present invention;

[0033] Figure 8 This is a second-view perspective perspective view of the filter of the present invention;

[0034] Figure 9 This is a schematic diagram of the internal structure of the position adjustment box of the present invention;

[0035] Figure 10 This is a top view of the horizontal guide rail of the present invention;

[0036] Figure 11 This is a perspective view of the horizontal guide rail of the present invention;

[0037] Figure 12 for Figure 11 Enlarged detail image of position A in the middle;

[0038] Figure 13 This is a schematic diagram of the first state of the filter of the present invention (the first coarse filter frame and the first fine filter frame cooperate to filter the coolant);

[0039] Figure 14 This is a schematic diagram of the second state of the filter of the present invention (the filter moves to the cleaning station, the filter is rotated 180 degrees, and the first coarse filter frame and the first fine filter frame are facing down to pour out the filtered material).

[0040] Figure 15 This is a schematic diagram of the third state of the filter of the present invention (the filter returns to the filtration station, and the position adjustment box adjusts the position so that the second coarse filter frame and the second fine filter frame are used together for filtration).

[0041] Figure 16 This is a schematic diagram of the fourth state of the filter of the present invention (the filter moves to the cleaning station, the filter is rotated 180 degrees, and the second coarse filter frame and the second fine filter frame are facing down to pour out the filtered material).

[0042] Figure 17 This is a schematic diagram of the fifth state of the filter of the present invention (reset to the same position as the first state);

[0043] In the diagram: 1. Cutting machine housing; 101. Coolant guide groove; 103. Wiring roller; 2. Lifting seat; 201. Cutting station; 3. Coolant sprayer; 301. Coolant outlet conduit; 302. Coolant guide branch; 4. Take-up and release rollers; 401. Correcting wheel; 402. Tensioning wheel assembly; 5. Coolant guide pipe; 501. Conveying auger; 502. First rotary motor; 6. Coolant storage tank; 7. Filtering mechanism; 701. Horizontal guide rail; 702. First slider; 7021. Prismatic pin; 7022. Reversing gear; 7023. Second slide rail; 7024. Third slider; 7025. Limiting post; 7026, horizontal pushing component; 703, lead screw; 704, second rotary motor; 705, position adjusting box; 7051, first slide rail; 7052, second slider; 7053, rack; 7054, drive gear; 706, flipping shaft; 707, position adjusting box; 708, flipping rack; 709, guide component; 8, filtrate storage tank; 801, recovery liquid conveying pipe; 901, first coarse filter frame; 902, second fine filter frame; 903, inclined guide plate; 904, second coarse filter frame; 905, first fine filter frame; 906, second inclined guide plate; 10, filter box. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Example 1

[0046] Reference Figure 1-17 A multi-wire cutting machine includes a cutting machine housing 1. A lifting seat 2 and multiple wire cutting rollers 103 are installed in the cutting chamber of the cutting machine housing 1. Multiple cutting stations 201 are provided at the top of the lifting seat 2. A coolant sprayer 3 is provided directly above the cutting station 201. Take-up and release rollers 4, correction rollers 401 and tensioning roller sets 402 are provided on both sides of the inside of the cutting machine housing 1. A coolant circulation mechanism is provided inside the cutting machine housing 1.

[0047] The jade to be cut is first fixed to the cutting station 201 with glue, and then diamond wire is wound around the wire roller 103 to cut the jade. During the cutting process, coolant is continuously sprayed out by the coolant sprayer 3 to cool it down.

[0048] The coolant circulation mechanism includes a filter box 10, which contains a filter mechanism 7, a coolant storage tank 6, and a filter temporary storage tank 8.

[0049] A coolant guiding groove 101 is provided on one side of the cutting station 201. The coolant guiding groove 101 is connected to the coolant guiding pipe 5. The coolant guiding pipe 5 guides the collected coolant into the filter box 10 and filters it through the filter mechanism 7. Then it is introduced into the coolant storage tank 6 for reuse.

[0050] Coolant mixed with debris flows into the coolant guide groove 101. A conveying auger 501 is installed in the coolant guide pipe 5. The conveying auger 501 is driven to rotate by the first rotary motor 502 to accelerate the flow of coolant. A recovery liquid conveying pipe 801 is provided between the filter liquid temporary storage tank 8 and the coolant storage tank 6. The recovered coolant is pumped back into the coolant storage tank 6 by a liquid pump.

[0051] The coolant storage tank 6 is equipped with a coolant outlet conduit 301 at its top. The coolant outlet conduit 301 is connected to the coolant sprayer 3 via a coolant guide branch 302 for supplying coolant.

[0052] After filtration, the coolant is recycled back to the coolant storage tank 6 for reuse.

[0053] Example 2

[0054] Reference Figure 1-17 The difference between this embodiment and embodiment 1 is that the filter mechanism 7 includes a horizontal guide rail 701, which is fixed inside the filter box 10. A first slider 702 is slidably installed on the top of the horizontal guide rail 701, and a lead screw 703 is rotatably installed on the top of the horizontal guide rail 701. The lead screw 703 passes through the first slider 702 through a threaded hole, and the lead screw 703 is driven to rotate by a second rotary motor 704.

[0055] The second rotary motor 704 drives the lead screw 703 to rotate, which in turn drives the first slider 702 to move horizontally. The specific direction of movement depends on the rotation direction of the lead screw 703, thereby driving the entire filter to move horizontally and back and forth between the filtration station and the cleaning and discharge station.

[0056] The first slider 702 is connected to a filter and a filter flipping mechanism. The filter includes a first coarse filter frame 901, a second fine filter frame 902, a second coarse filter frame 904, and a first fine filter frame 905. An inclined guide plate 903 is connected between the first coarse filter frame 901 and the second fine filter frame 902. A second inclined guide plate 906 is provided between the second coarse filter frame 904 and the first fine filter frame 905. The diameter of the filter hole of the first coarse filter frame 901 is larger than the diameter of the second coarse filter frame 904, and the diameter of the first fine filter frame 905 is larger than the diameter of the first fine filter frame 905. The first coarse filter frame 901 and the first fine filter frame 905 are a group, and the second coarse filter frame 904 and the second fine filter frame 902 are a group. The filter flipping mechanism flips the filter by 180 degrees to switch between the two groups.

[0057] In the two-stage (coarse filtration + fine filtration) filtration system for jade cutting coolant, a setup of "two sets of filters, each containing filter frames of different pore sizes and with different configurations, selected for use as needed" is designed. The core is to adapt to the complex working conditions of jade cutting, while balancing filtration effect, cost, equipment efficiency, and finished product quality.

[0058] In coarse cutting conditions, the cutting depth is large and the feed rate is fast, resulting in impurities mainly consisting of large-diameter debris with a high concentration. If a combination of the first coarse filter frame 901 and the first fine filter frame 905 is used, large debris can be quickly intercepted by the coarse filter (avoiding clogging of the fine filter frame), and then most of the small particles can be removed by the medium and fine filters. This ensures filtration efficiency (without affecting the coolant circulation speed) and avoids frequent clogging caused by using an excessively fine coarse filter plate.

[0059] In fine cutting processes such as jade carving, thin slicing, and surface shaping, high cutting precision is required. Impurities are mainly fine powder with low concentration, but the cleanliness of the coolant is extremely important (otherwise, the fine powder will scratch the jade surface). In these cases, a combination of a second coarse filter frame 904 and a second fine filter frame 902 is used. The coarse filter removes a small amount of residual large particles first, and then the fine filter intercepts the fine powder, ensuring that the coolant cleanliness meets the requirements for fine cutting and preventing fine powder residue from affecting the quality of the finished product.

[0060] Example 3

[0061] Reference Figure 1-17The difference between this embodiment and embodiment 2 is that the filter flipping mechanism includes a flipping shaft 706, which is rotatably mounted on the first slider 702. A position adjustment box 705 is fixed on one side of the first slider 702. Two second sliders 7052 are slidably mounted in the position adjustment box 705. The second sliders 7052 are slidably mounted on the first slide rail 7051. The two second sliders 7052 are respectively fixed to the second fine filter frame 902 and the first fine filter frame 905. A rack 7053 is fixed on the side of the two second sliders 7052 that are close to each other. A drive gear 7054 is provided between the two racks 7053. The drive gear 7054 meshes with both drive gears 7054. The drive gear 7054 is driven to rotate by a third rotary motor.

[0062] When the drive gear 7054 rotates, it can drive the two racks 7053 to move closer to or further away from each other, thereby driving the second fine filter frame 902 and the first fine filter frame 905 to move closer to or further away from each other.

[0063] Reference Figure 13-17 ,exist Figure 13 Over to Figure 14 In this state, the filter is moved away from the coolant guide pipe 5 and to the cleaning station. The filter is rotated 180 degrees, and the first coarse filter frame 901 and the first fine filter frame 905 are tilted downwards to empty the filtered material. Figure 14 Over to Figure 15 When in this state, the filter returns to below the coolant guide pipe 5. At this time, it is necessary to operate the position adjustment box 705 and change the relative horizontal position of the second fine filter frame 902 and the first fine filter frame 905. Figure 14 In this state, the second fine filter box 902 is on the left and the first fine filter box 905 is on the right. Figure 15 In the current state (with the second fine filter frame 902 on the right and the first fine filter frame 905 on the left), only by operating the position adjustment box 705 and switching the relative horizontal positions of the second fine filter frame 902 and the first fine filter frame 905 can it be ensured that the coolant flowing out of the coolant guide pipe 5 first passes through the second coarse filter frame 904 and then through the second fine filter frame 902, thus switching to the other set. Figure 16 and 17 In the middle, the filter continues to cycle back and forth to discharge the filtered material and then switches back. Figure 13The filter box 10 is in a state of filtration (through the combination of the first coarse filter frame 901 and the first fine filter frame 905). A cleaning fluid nozzle 802 is provided at the cleaning station. The cleaning fluid nozzle 802 is connected to the cleaning fluid supply device through a hose and is connected to the drive device. The position of the cleaning fluid nozzle 802 can be adjusted to ensure that the filter does not interfere with the cleaning fluid nozzle 802 when it is moved or flipped. The cleaning fluid nozzle 802 can be moved to the position with the filter material for spraying and cleaning. The bottom of the filter box 10 is provided with a sewage discharge port for discharging sewage.

[0064] Example 4

[0065] Reference Figure 1-17 The difference between this embodiment and embodiment 3 is that, in order to allow the filter to automatically rotate 180 degrees and discharge the filtered material when it moves to the cleaning station, the end of the rotating shaft 706 away from the position adjustment box 705 passes through the first slider 702 and a prism pin 7021 is horizontally and movably installed inside it. The end of the prism pin 7021 away from the first slider 702 is fixed with a rotating gear 7022. A rotating rack 707 is fixed on the first slider 702 near the end of the second rotary motor 704. The top of the first slider 702 is slidably mounted with a third slider 7024 through the second slide rail 7023. A horizontal pusher 7026 is fixed on the third slider 7024. A slot is opened at the bottom of the horizontal pusher 7026, and the top of the rotating gear 7022 extends movably into the slot. Guide members 708 are provided at both ends of the horizontal guide rail 701. Guide grooves are opened on the guide members 708. A limit post 7025 is fixed at the top of the third slider 7024, and the limit post 7025 matches the guide groove.

[0066] When the filter moves to the side close to the coolant guide pipe 5, the limiting post 7025 is locked in the guide groove of the guide member 708 on this side. At this time, the third slider 7024 slides in the second slide rail 7023 to the position closest to the position adjustment box 705. At this time, due to the limiting of the horizontal push member 7026 on the flip gear 7022, the flip gear 7022 can be driven to follow the displacement. At this time, the flip gear 7022 is aligned with the flip rack 707. When the filter moves towards the cleaning station, the filter moves through the flip rack 707 and drives the filter to rotate 180 degrees through the meshing of the flip gear 7022 and the flip rack 707.

[0067] When the filter moves to the side away from the coolant guide pipe 5, the limiting post 7025 is locked in the guide groove of another guide 708. At this time, the third slider 7024 slides in the second slide rail 7023 to the position furthest away from the position adjustment box 705. The position of the flip gear 7022 is offset from the flip rack 707, so that the filter will not flip 180 degrees again during the process of moving back below the coolant guide pipe 5. This means that it flips only once for each round trip, thereby switching between two different filtration states.

[0068] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0069] In this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0070] The control method of this invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0071] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-wire cutting machine, comprising a cutting machine housing (1), characterized in that: The cutting chamber of the cutting machine housing (1) is equipped with a lifting seat (2) and multiple wire rollers (103). The top of the lifting seat (2) is provided with multiple cutting stations (201). A coolant sprayer (3) is provided directly above the cutting station (201). The inside of the cutting machine housing (1) is provided with take-up and release rollers (4), correction rollers (401) and tensioning roller group (402) on both sides. The inside of the cutting machine housing (1) is provided with a coolant circulation mechanism. The coolant circulation mechanism includes a filter box (10), which is equipped with a filter mechanism (7), a coolant storage box (6) and a filter temporary storage tank (8). A coolant guide groove (101) is provided on one side of the cutting station (201). The coolant guide groove (101) is connected to the coolant guide pipe (5). The coolant guide pipe (5) guides the collected coolant into the filter box (10) and filters it through the filter mechanism (7). Then it is introduced into the coolant storage tank (6) for reuse.

2. The multi-wire cutting machine according to claim 1, characterized in that: A conveying auger (501) is installed inside the coolant guide pipe (5). The conveying auger (501) is driven to rotate by the first rotary motor (502). A recovery liquid conveying pipe (801) is provided between the filter liquid temporary storage tank (8) and the coolant storage tank (6). The recovered coolant is pumped back into the coolant storage tank (6) by a liquid pump.

3. A multi-wire cutting machine according to claim 2, characterized in that: The top of the coolant storage tank (6) is equipped with a coolant outlet conduit (301), which is connected to the coolant sprayer (3) through a coolant guide branch (302) for supplying coolant.

4. A multi-wire cutting machine according to claim 1, characterized in that: The filter mechanism (7) includes a horizontal guide rail (701), which is fixed inside the filter box (10). A first slider (702) is slidably installed on the top end of the horizontal guide rail (701). A lead screw (703) is also rotatably installed on the top end of the horizontal guide rail (701). The lead screw (703) passes through the first slider (702) through a threaded hole and is driven to rotate by a second rotary motor (704).

5. A multi-wire cutting machine according to claim 4, characterized in that: The first slider (702) is connected to a filter and a filter flipping mechanism. The filter includes a first coarse filter frame (901), a second fine filter frame (902), a second coarse filter frame (904), and a first fine filter frame (905). An inclined guide plate (903) is connected between the first coarse filter frame (901) and the second fine filter frame (902). A second inclined guide plate (906) is provided between the second coarse filter frame (904) and the first fine filter frame (905). The diameter of the filter hole of the first coarse filter frame (901) is larger than the diameter of the second coarse filter frame (904), and the diameter of the first fine filter frame (905) is larger than the diameter of the first fine filter frame (905). The first coarse filter frame (901) and the first fine filter frame (905) are a group, and the second coarse filter frame (904) and the second fine filter frame (902) are a group. The filter flipping mechanism flips the filter frame 180 degrees to switch between the two groups.

6. A multi-wire cutting machine according to claim 4, characterized in that: The filter flipping mechanism includes a flipping shaft (706), which is rotatably mounted on a first slider (702). A position adjustment box (705) is fixed on one side of the first slider (702). Two second sliders (7052) are slidably mounted inside the position adjustment box (705), and the second sliders (7052) are slidably mounted on a first slide rail (7051).

7. A multi-wire cutting machine according to claim 6, characterized in that: The two second sliders (7052) are fixed to the second fine filter frame (902) and the first fine filter frame (905) respectively. A rack (7053) is fixed on the side of the two second sliders (7052) that are close to each other. A drive gear (7054) is provided between the two racks (7053). The drive gear (7054) meshes with both drive gears (7054) and is driven to rotate by a third rotary motor.

8. A multi-wire cutting machine according to claim 7, characterized in that: The end of the flipping shaft (706) away from the position adjustment box (705) passes through the first slider (702) and a prism pin (7021) is horizontally and movably installed inside. A flipping gear (7022) is fixed at the end of the prism pin (7021) away from the first slider (702). A flipping rack (707) is fixed at the end of the first slider (702) near the second rotary motor (704).

9. A multi-wire cutting machine according to claim 8, characterized in that: The top of the first slider (702) is slidably mounted with a third slider (7024) via a second slide rail (7023). A horizontal pusher (7026) is fixed on the third slider (7024). A slot is provided at the bottom of the horizontal pusher (7026), and the top of the flip gear (7022) extends into the slot.

10. A multi-wire cutting machine according to claim 9, characterized in that: Both ends of the horizontal guide rail (701) are provided with guide members (708), and guide grooves are provided on the guide members (708). The top end of the third slider (7024) is fixed with a limit post (7025), and the limit post (7025) is matched with the guide groove.

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