Cutting fluid supply system of multi-wire cutting machine and swing type multi-wire cutting machine

Abstract

The invention discloses a cutting fluid supply system of a multi-wire cutting machine and a swing type multi-wire cutting machine. The cutting fluid supply system of the multi-wire cutting machine comprises a fluid inlet assembly, an upper sand pouring device, a lower sand pouring device, a cutting fluid collection and backflow assembly and a cutting fluid circulation cooling device. The upper sand pouring device and the lower sand pouring device are arranged at the upper part of a cutting chamber of the multi-wire cutting machine and comprise two parts which are bilaterally symmetrical, in each part, the upper sand pouring device is provided with a plurality of groups of liquid spraying holes, and cutting liquid is sprayed to a cut workpiece through the liquid spraying holes; the lower sand pouring device is provided with a long-strip-shaped sand pouring opening, and cutting liquid forms a waterfall type liquid pouring mode aiming at the cutting line net through the sand pouring opening. By means of the layout of the cutting liquid supply system of the multi-wire cutting machine and the innovative design of part structures of the cutting liquid supply system, the cooling effect of diamond cutting wires is improved, chippings and impurities in cutting seams of workpieces can be cleared away in time, and the purposes of guaranteeing the cutting quality of the workpieces and reducing the production cost are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of multi-wire cutting equipment, in particular to a cutting fluid supply system for a multi-wire cutting machine and a swing-type multi-wire cutting machine. Background Art

[0002] Diamond wire multi-wire cutting machine equipment is to consolidate diamond particles on the cutting wire to form a diamond wire. In its routing system, the diamond wire is wound on the groove wheel according to the cutting process requirements to form a parallel cutting wire net, and the groove wheel drives the cutting wire to reciprocate to cut the workpiece. The worktable swing multi-wire cutting machine is to drive the workpiece to swing left and right by rotating the swing body on the worktable around the swing axis, so that the workpiece contacts the cutting wire net. At the same time, the worktable is driven downward by the lifting mechanism to feed the workpiece. During the operation of the worktable swing multi-wire cutting machine using diamond wire as the cutting wire, it is also necessary to cool the cutting wire by spraying coolant and take away the debris and impurities in the workpiece cut.

[0003] In the prior art, the cutting liquid supply system of the diamond wire multi-wire cutting machine only uses a set of spraying devices to spray the cutting wire and the workpiece at the same time. When the amount of coolant sprayed is small, due to the poor cooling effect of the diamond cutting wire, not only will the service life of the diamond wire be greatly shortened, the consumption of the diamond wire will be increased, but also the flatness, roughness and parallelism of the workpiece cutting surface will be adversely affected, and it is difficult to remove the debris and impurities in the workpiece cutting seam in time; when the amount of coolant sprayed is too large, the spray pressure will also cause impact on the cutting wire network, affecting the workpiece cutting quality. It can be seen that during the operation of the worktable swinging diamond wire multi-wire cutting machine, the cutting liquid supply system is crucial to ensuring product quality and reducing production costs. Therefore, it is necessary to optimize the design of the cutting liquid supply system structure and its coordination structure with the multi-wire cutting machine. Summary of the invention

[0004] The present invention provides a cutting fluid supply system for a multi-wire saw and a swinging multi-wire saw, aiming to improve the cooling effect of the diamond cutting wire through the innovative design of the layout of the cutting fluid supply system and the structure of its components, and to enable the debris and impurities in the cutting seam of the workpiece to be cleaned in time, so as to ensure the cutting quality of the workpiece and reduce the production cost.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme: A cutting liquid supply system for a multi-wire cutting machine, comprising a liquid inlet component, an upper sand pouring device, a lower sand pouring device, a cutting liquid collecting and reflux component, and a cutting liquid circulating cooling device; One end of the liquid inlet component is connected to the liquid outlet pipeline of the external cutting liquid circulation cooling device, and the other end is connected to the upper sand pouring device and the lower sand pouring device; The upper sand pouring device and the lower sand pouring device are arranged above the cutting chamber of the multi-wire cutting machine, and include two symmetric parts on the left and right. In each part, the upper sand pouring device is provided with several groups of liquid spraying holes, and cutting fluid is sprayed onto the workpiece to be cut through the liquid spraying holes; the lower sand pouring device is provided with a strip-shaped sand pouring opening, and the cutting fluid forms a waterfall-like liquid pouring method for the cutting wire mesh through the sand pouring opening; The cutting fluid collection and reflux assembly is arranged at the bottom of the cutting chamber of the multi-wire cutting machine and is connected to an externally provided cutting fluid circulation and cooling device. The collected and refluxed cutting fluid is filtered and cooled by the cutting fluid circulation and cooling device and then recycled.

[0006] For the above-mentioned cutting fluid supply system of the multi-wire cutting machine, the upper sand pouring device includes a mounting support, a first liquid inlet, and an upper sand pouring pipe; the mounting support is fixed on the frame of the cutting chamber of the multi-wire cutting machine, above the sheave. A cutting fluid flow-through channel is provided inside the mounting support. One end of the cutting fluid flow-through channel is communicated with the first liquid inlet, and the other end is communicated with the upper sand pouring pipe; the first liquid inlet is connected to the liquid inlet assembly; the central axis of the upper sand pouring pipe is parallel to the central axis of the sheave, and spraying holes are axially opened at the bottom of the upper sand pouring pipe.

[0007] For the above-mentioned cutting fluid supply system of the multi-wire cutting machine, the upper sand pouring pipe is a circular pipe, one end of which is a mounting part. An arc-shaped adjustment hole is provided in the mounting part, and the upper sand pouring pipe is assembled on the mounting support through a bolt assembly passing through the arc-shaped adjustment hole.

[0008] For the above-mentioned cutting fluid supply system of the multi-wire cutting machine, the lower sand pouring device includes a fixed seat, a second liquid inlet, a flow collection cavity, a lower sand pouring pipe, and a sand pouring opening adjustment plate; the fixed seat is installed on the sheave assembly seat of the multi-wire cutting machine, between the sheave and the upper sand pouring device, and the lower sand pouring pipe is installed on the fixed seat; the lower sand pouring pipe is of a square pipe structure, and a flow-through channel is reserved between its bottom and the fixed seat. A flow collection cavity is assembled on its top. The top surface of the lower sand pouring pipe is communicated with the flow collection cavity, and flow-through holes communicated with the flow-through channel are provided on the bottom surface; the sand pouring opening adjustment plate is installed on the side wall of the lower sand pouring pipe and forms a strip-shaped sand pouring opening in cooperation with the flow-through channel.

[0009] For the above-mentioned cutting fluid supply system of the multi-wire cutting machine, the sand pouring opening adjustment plate is an L-shaped adjustment plate, the bottom surface of which is of a wedge-shaped surface structure, and its side wall is assembled with the lower sand pouring pipe through a bolt assembly. Adjustment long holes are provided on the side wall of the sand pouring opening adjustment plate.

[0010] For the above-mentioned cutting fluid supply system of the multi-wire cutting machine, a filter plate is arranged in the lower sand pouring pipe. The filter plate is inclined in the inner cavity of the lower sand pouring pipe. The inner cavity of the lower sand pouring pipe is divided into upper and lower parts by the filter plate, and several groups of filter holes are provided on the filter plate.

[0011] The above-mentioned cutting fluid supply system of the multi-wire cutting machine, wherein the liquid inlet assembly includes a main liquid supply pipeline joint, a liquid inlet distributor, a liquid inlet joint for the upper sand spraying device, and a liquid inlet joint for the lower sand spraying device; the main liquid supply pipeline joint and the liquid inlet distributor are arranged on the back of the cutting chamber of the multi-wire cutting machine. One end of the main liquid supply pipeline joint is communicated with the liquid outlet pipeline of the cutting fluid circulation cooling device, and the other end is communicated with the liquid inlet distributor; the liquid inlet distributor is provided with four groups of liquid inlet manifolds, and the four groups of liquid inlet manifolds are respectively connected to the front ends of two groups of liquid inlet joints for the upper sand spraying device and two groups of liquid inlet joints for the lower sand spraying device; the rear ends of the two groups of liquid inlet joints for the upper sand spraying device and the two groups of liquid inlet joints for the lower sand spraying device pass through the wall plate of the multi-wire cutting machine and are respectively connected to two groups of first liquid inlet ports in the upper sand spraying device and two groups of second liquid inlet ports in the lower sand spraying device.

[0012] In the above-mentioned cutting fluid supply system of the multi-wire cutting machine, in the liquid inlet assembly, a switch valve is arranged at the main liquid supply pipeline joint, and a flow regulating valve is arranged at the four groups of liquid inlet manifolds.

[0013] The above-mentioned cutting fluid collection and return assembly of the multi-wire cutting machine includes a cutting fluid collection tank, a cutting fluid return tank, and a liquid return pump; the cutting fluid collection tank is located below the grooved wheel and is communicated with the cutting fluid return tank. A filter screen is arranged between the cutting fluid collection tank and the cutting fluid return tank. The cutting fluid return tank is arranged at the bottom of the cutting chamber of the multi-wire cutting machine and is communicated with the liquid inlet of the liquid return pump installed on the back of the cutting chamber; the liquid outlet of the liquid return pump is connected to the liquid inlet of the externally provided cutting fluid circulation cooling device.

[0014] A swing-type multi-wire cutting machine is equipped with the above-mentioned cutting fluid supply system of the multi-wire cutting machine. The swing-type multi-wire cutting machine has a swing structure of the workbench, uses a diamond cutting wire, and the workpiece to be cut is hoisted on the swing workbench. The swing workbench is driven by a lifting system to be transported downward from top to bottom to realize the feeding of the workpiece. During the cutting process, the upper sand spraying device in the cutting fluid supply system of the multi-wire cutting machine sprays liquid on the workpiece, and the lower sand spraying device performs a waterfall-like liquid pouring on the cutting wire mesh.

[0015] The present invention provides a cutting fluid supply system for a multi-wire cutting machine, which is provided with an upper sand spraying device and a lower sand spraying device. The cutting fluid can be sprayed onto the workpiece to be cut through the upper sand spraying device, and the flow rate regulating valve at the liquid inlet manifold communicated with the liquid inlet joint of the upper sand spraying device is used to control the liquid spraying amount and the spraying pressure. Moreover, the spraying direction of the cutting fluid can be changed by adjusting the assembly angle between the upper sand spraying pipe and the mounting support, so that the debris and impurities in the cutting seam of the workpiece can be taken away and removed in time by the cutting fluid. For the cutting fluid supply system of the multi-wire cutting machine of the present invention, the long strip-shaped sand spraying port of the lower sand spraying device can be used to cool the cutting wire mesh in a waterfall-like liquid pouring manner, so that the sand liquid can be evenly and gently poured on the cutting wire mesh, avoiding the impact on the cutting wire mesh and ensuring the stability of the cutting process. In addition, a sand spraying port adjusting plate is arranged in the lower sand spraying device, and its height position can be adjusted through the adjusting long hole on the side wall of the sand spraying port adjusting plate, so as to realize the adjustment of the width of the sand spraying port to adapt to different wire distances of the wire mesh and meet the cutting operation requirements of products with different thickness dimensions.

[0016] The present invention also provides a swing-type multi-wire cutting machine configured with the above-mentioned cutting fluid supply system for a multi-wire cutting machine. Through the optimized design of the layout of the cutting fluid supply system for a multi-wire cutting machine, it is made to match the structure of the swing-type multi-wire cutting machine, ensuring the stable operation of the swing-type multi-wire cutting machine, thereby achieving the purpose of reducing production costs and improving the cutting quality of workpieces. Brief Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the components in the cutting fluid supply system installed on the back of the cutting chamber of the multi-wire cutting machine; Figure 2 It is a schematic diagram of the components in the cutting fluid supply system installed on one side of the cutting chamber of the multi-wire cutting machine; Figure 3 It is a schematic diagram of the connection relationship of the components in the cutting fluid supply system of the multi-wire cutting machine; Figure 4 It is a schematic diagram of the structure of the upper sand spraying device; Figure 5 It is Figure 4 a schematic diagram after the space of the middle sand spraying device is turned over by a certain angle; Figure 6 It is Figure 5 the M-direction view of Figure 7 It is a schematic diagram of the structure of the lower sand spraying device; Figure 8 It is Figure 7 the K-direction view of Figure 9 It is Figure 8 the schematic diagram of the A-A sectional structure in Figure 10 It is Figure 8Schematic diagram of the BB section structure.

[0018] Explanation of the symbols in the figure: 1 is the main fluid supply line connector; 2 is a liquid inlet distributor; 3 is the liquid inlet joint of the upper sand pouring device; 4 is the liquid inlet joint of the lower sand pouring device; 5 is a liquid return pump; 6 is the liquid outlet of the liquid return pump; 7 is a cutting chamber frame of the multi-wire cutting machine; 8 is a groove wheel; 9 is an upper sand pouring device, 9-1 is a mounting support, 9-2 is a first liquid inlet, 9-3 is an upper sand pouring pipe, 9-3-1 is a spray hole, and 9-3-2 is an arc-shaped adjustment hole; 10 is a lower sand pouring device, 10-1 is a fixing seat, 10-2 is a second liquid inlet, 10-3 is a collecting chamber, 10-4 is a lower sand pouring pipe, 10-4-1 is a flow hole, 10-5 is a sand pouring port adjustment plate, 10-5-1 is an adjustment long hole, 10-6 is a bolt assembly, 10-7 is a filter plate, 10-7-1 is a filter hole, P is a sand pouring port, and T is a flow channel; 11 is a cutting liquid collecting tank; 12 is a cutting fluid circulation cooling device. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] A multi-wire saw is a slicing machine that uses abrasives to grind the material being cut through high-speed reciprocating motion of the cutting wire, and cuts the workpiece into hundreds or even thousands of thin slices at the same time. A multi-wire saw that uses diamond wire as the cutting wire is a diamond wire multi-wire saw. It is a diamond wire made by consolidating diamond particles on the cutting wire. In its routing system, the diamond wire is wound around the groove wheel according to the cutting process requirements to form a parallel cutting wire network, and the groove wheel drives the diamond wire to reciprocate to cut the workpiece. With the development trend of the diversification of cutting workpiece materials and sizes, the structure of the multi-wire saw is constantly innovating, and a workbench swing multi-wire saw suitable for large workpieces has emerged. However, when the cutting wire of the table swinging multi-wire cutting machine is a diamond wire, it is necessary to use cutting fluid (sand liquid) to cool the cutting wire. If the cutting fluid cannot be supplied sufficiently and the cooling effect is not good, the service life of the diamond wire will be greatly shortened, increasing the consumption of the diamond wire, and also bringing adverse effects to the flatness, roughness and parallelism indicators of the workpiece cutting surface; in addition, in order to ensure that the debris and impurities in the workpiece cutting seam can be taken away by the cutting fluid in time, it is also necessary to ensure sufficient supply of cutting fluid.

[0021] See alsoFigure 1 , Figure 2 , Figure 3 , the present invention provides a cutting fluid supply system for a multi-wire cutting machine, especially applicable to a table-swinging multi-wire cutting machine using diamond wire as the cutting wire, which includes a liquid inlet assembly, an upper sand casting device 9, a lower sand casting device 10, a cutting fluid collection and reflux assembly, and a cutting fluid circulation and cooling device 12; The liquid inlet assembly includes a main liquid supply pipeline joint 1, a liquid inlet distributor 2, an upper sand casting device liquid inlet joint 3, and a lower sand casting device liquid inlet joint 4; the main liquid supply pipeline joint 1 and the liquid inlet distributor 2 are arranged on the back of the cutting chamber of the multi-wire cutting machine. One end of the main liquid supply pipeline joint 1 is connected to the liquid outlet pipeline of the cutting fluid circulation and cooling device 12, and the other end is connected to the liquid inlet distributor 2. A switch valve is provided at the main liquid supply pipeline joint 1; the liquid inlet distributor 2 is provided with four groups of liquid inlet manifolds, and flow regulating valves are provided at the four groups of liquid inlet manifolds. The four groups of liquid inlet manifolds are respectively connected to the front ends of two groups of upper sand casting device liquid inlet joints 3 and two groups of lower sand casting device liquid inlet joints 4; the rear ends of the two groups of upper sand casting device liquid inlet joints 3 and the two groups of lower sand casting device liquid inlet joints 4 pass through the wall panel of the multi-wire cutting machine and are respectively connected to the upper sand casting device 9 and the lower sand casting device 10; The upper sand casting device 9 and the lower sand casting device 10 are arranged at the upper part of the cutting chamber of the multi-wire cutting machine and include two symmetric parts on the left and right; The cutting fluid collection and reflux assembly includes a cutting fluid collection tank 11, a cutting fluid reflux tank, and a liquid return pump 5; the cutting fluid collection tank 11 is located below the grooved wheel 8 and is connected to the cutting fluid reflux tank. A filter screen is provided between the cutting fluid collection tank 11 and the cutting fluid reflux tank. The cutting fluid reflux tank is arranged at the bottom of the cutting chamber of the multi-wire cutting machine and is connected to the liquid inlet of the liquid return pump 5 installed on the back of the cutting chamber. The liquid outlet 6 of the liquid return pump is connected to the liquid inlet of the externally provided cutting fluid circulation and cooling device 12.

[0022] See Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6, for the cutting fluid supply system of the multi-wire cutting machine according to the present invention, the upper sand casting device 9 thereof includes a mounting support 9-1, a first liquid inlet 9-2, and an upper sand casting pipe 9-3; the mounting support 9-1 is fixed on the cutting chamber frame 7 of the multi-wire cutting machine, above the sheave 8. A cutting fluid flow-through channel is provided inside the mounting support 9-1. One end of the cutting fluid flow-through channel communicates with the first liquid inlet 9-2, and the other end communicates with the upper sand casting pipe 9-3; the first liquid inlet 9-2 is connected to the liquid inlet assembly; the upper sand casting pipe 9-3 is a circular pipe, one end of which is a mounting portion, and an arc-shaped adjustment hole 9-3-2 is provided in the mounting portion. The upper sand casting pipe 9-3 is assembled on the mounting support 9-1 through a bolt assembly passing through the arc-shaped adjustment hole 9-3-2, so that the central axis of the sand casting pipe 9-3 is parallel to the central axis of the sheave 8, and spray holes 9-3-1 are axially provided at the bottom of the upper sand casting pipe 9-3.

[0023] See Figure 2 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , for the cutting fluid supply system of the multi-wire cutting machine according to the present invention, the lower sand casting device 10 thereof includes a fixed seat 10-1, a second liquid inlet 10-2, a flow collection cavity 10-3, a lower sand casting pipe 10-4, and a sand casting port adjustment plate 10-5; the fixed seat 10-1 is installed on the sheave assembly seat of the multi-wire cutting machine, between the sheave 8 and the upper sand casting device 9, and the lower sand casting pipe 10-4 is installed on the fixed seat 10-1; the lower sand casting pipe 10-4 has a square pipe structure, and a flow-through channel T is reserved between its bottom and the fixed seat 10-1. A flow collection cavity 10-3 is assembled on its top. The top surface of the lower sand casting pipe 10-4 communicates with the flow collection cavity 10-3, and a flow-through hole 10-4-1 communicating with the flow-through channel T is provided on the bottom surface. A filter plate 10-7 is provided inside the lower sand casting pipe 10-4. The filter plate 10-7 is inclined in the inner cavity of the lower sand casting pipe. The inner cavity of the lower sand casting is divided into upper and lower parts by the filter plate 10-7, and a number of groups of filter holes 10-7-1 are provided on the filter plate 10-7; the sand casting port adjustment plate 10-5 is an L-shaped adjustment plate, installed on the side wall of the lower sand casting pipe 10-4. Its bottom surface is a wedge-shaped surface structure, and its side wall is assembled with the sand casting pipe through a bolt assembly 10-6. An adjustment long hole 10-5-1 extending in the vertical direction is provided on the side wall of the sand casting port adjustment plate 10-5. The sand casting port adjustment plate 10-5 and the flow-through channel T cooperate to form a long strip-shaped sand casting port P.

[0024] See Figures 1 to 10, the present invention also provides a swing type multi-wire cutting machine, which is equipped with the above-mentioned multi-wire cutting machine cutting fluid supply system. The swing type multi-wire cutting machine has a swing structure of the workbench, adopts diamond cutting wires, and the workpiece to be cut is hoisted on the swing workbench. The swing workbench is driven by a lifting system to move downward from top to bottom to achieve the feeding of the workpiece. During the working process of the swing type multi-wire cutting machine, the upper sand spraying device 9 in the multi-wire cutting machine cutting fluid supply system sprays cutting fluid on the workpiece, and the flow regulating valve at the liquid inlet manifold communicated with the liquid inlet joint 3 of the upper sand spraying device is used to control the liquid spraying amount and spraying pressure. The spraying direction of the cutting fluid can also be changed by adjusting the assembly angle between the upper sand spraying pipe 9-3 and the mounting support 9-1, so as to realize that the cutting fluid timely takes away and removes the debris and impurities in the cutting seam of the workpiece; the lower sand spraying device 10 sprays liquid on the cutting wire mesh. The long strip-shaped sand spraying port P of the lower sand spraying device 10 can be used to cool the cutting wire mesh in a waterfall-like liquid spraying manner, so that the sand liquid is evenly and gently sprinkled on the cutting wire mesh, thereby avoiding the impact on the cutting wire mesh and ensuring the stability of the cutting process. In addition, the height position of the sand spraying port P can be adjusted by the adjusting long hole 10-5-1 on the side wall of the sand spraying port adjusting plate 10-5, so as to adjust the width of the sand spraying port P to adapt to different wire distances of the wire mesh and meet the cutting operation requirements of products with different thickness dimensions.

Claims

1. A cutting fluid supply system for a multi-wire cutting machine, characterized in that: It includes a liquid inlet assembly, an upper sand casting device (9), a lower sand casting device (10), a cutting fluid collection and reflux assembly, and a cutting fluid circulation and cooling device (12). One end of the liquid inlet assembly is connected to the liquid outlet pipeline of the externally provided cutting fluid circulation and cooling device (12), and the other end is connected to the upper sand casting device (9) and the lower sand casting device (10). The upper sand casting device (9) and the lower sand casting device (10) are arranged at the upper part of the cutting chamber of the multi-wire cutting machine and include two symmetric left and right parts. In each part, the upper sand casting device (9) is provided with several groups of liquid spraying holes, and cutting fluid is sprayed onto the workpiece to be cut through the liquid spraying holes; the lower sand casting device (10) is provided with a long strip-shaped sand casting opening, and the cutting fluid forms a waterfall-like liquid pouring method for the cutting wire mesh through the sand casting opening. The cutting fluid collection and reflux assembly is arranged at the bottom of the cutting chamber of the multi-wire cutting machine and is connected to the externally provided cutting fluid circulation and cooling device (12). The collected and refluxed cutting fluid is filtered and cooled by the cutting fluid circulation and cooling device (12) and then recycled.

2. The cutting fluid supply system of the multi-wire cutting machine according to claim 1, characterized in that: The upper sand casting device (9) includes a mounting support (9-1), a first liquid inlet (9-2), and an upper sand casting pipe (9-3); the mounting support (9-1) is fixed on the cutting chamber frame (7) of the multi-wire cutting machine, above the sheave (8). A cutting fluid flow-through channel is provided inside the mounting support (9-1). One end of the cutting fluid flow-through channel is communicated with the first liquid inlet (9-2), and the other end is communicated with the upper sand casting pipe (9-3); the first liquid inlet (9-2) is connected to the liquid inlet assembly; the central axis of the upper sand casting pipe (9-3) is parallel to the central axis of the sheave (8), and spraying holes (9-3-1) are axially opened at the bottom of the upper sand casting pipe (9-3).

3. The cutting fluid supply system of the multi-wire cutting machine according to claim 2, wherein: The upper sand casting pipe (9-3) is a circular pipe, one end of which is a mounting part, and an arc-shaped adjustment hole (9-3-2) is provided in the mounting part. The upper sand casting pipe (9-3) is assembled on the mounting support (9-1) through a bolt assembly passing through the arc-shaped adjustment hole (9-3-2).

4. The cutting fluid supply system of the multi-wire cutting machine according to any one of claims 1 to 3, characterized in that: The lower sand casting device (10) includes a fixed seat (10-1), a second liquid inlet (10-2), a flow collection cavity (10-3), a lower sand casting pipe (10-4), and a sand casting opening adjustment plate (10-5); the fixed seat (10-1) is installed on the sheave assembly seat of the multi-wire cutting machine, between the sheave (8) and the upper sand casting device (9). The lower sand casting pipe (10-4) is installed on the fixed seat (10-1); the lower sand casting pipe (10-4) is of a square pipe structure, and a flow-through channel (T) is reserved between its bottom and the fixed seat (10-1). A flow collection cavity (10-3) is assembled on its top. The top surface of the lower sand casting pipe (10-4) is communicated with the flow collection cavity (10-3), and flow-through holes (10-4-1) communicated with the flow-through channel (T) are arranged on the bottom surface; the sand casting opening adjustment plate (10-5) is installed on the side wall of the lower sand casting pipe (10-4) and cooperates with the flow-through channel to form a long strip-shaped sand casting opening (P).

5. The cutting fluid supply system of the multi-wire cutting machine according to claim 4, characterized in that: The sand pouring orifice adjusting plate (10-5) is an L-shaped adjusting plate, the bottom surface of which is of a wedge-shaped surface structure, and the side wall thereof is assembled with the lower sand pouring pipe (10-4) through a bolt assembly (10-6). An adjusting long hole (10-5-1) is provided on the side wall of the sand pouring orifice adjusting plate (10-5).

6. The cutting fluid supply system of the multi-wire cutting machine according to claim 5, characterized in that: A filter plate (10-7) is arranged in the lower sand pouring pipe (10-4). The filter plate (10-7) is obliquely arranged in the inner cavity of the lower sand pouring pipe. The inner cavity of the lower sand pouring pipe is divided into upper and lower parts by the filter plate (10-7), and a plurality of groups of filter holes (10-7-1) are arranged on the filter plate (10-7).

7. The cutting fluid supply system of the multi-wire cutting machine according to claim 5, wherein: The liquid inlet assembly includes a main liquid supply pipeline joint (1), a liquid inlet distributor (2), an upper sand pouring device liquid inlet joint (3) and a lower sand pouring device liquid inlet joint (4). The main liquid supply pipeline joint (1) and the liquid inlet distributor (2) are arranged on the back of the cutting chamber of the multi-wire cutting machine. One end of the main liquid supply pipeline joint (1) is communicated with the liquid outlet pipeline of the cutting fluid circulation cooling device (12), and the other end is communicated with the liquid inlet distributor (2). The liquid inlet distributor (2) is provided with four groups of liquid inlet manifolds, and the four groups of liquid inlet manifolds are respectively connected with the front ends of two groups of upper sand pouring device liquid inlet joints (3) and two groups of lower sand pouring device liquid inlet joints (4). The rear ends of the two groups of upper sand pouring device liquid inlet joints (3) and the two groups of lower sand pouring device liquid inlet joints (4) pass through the wall panel of the multi-wire cutting machine and are respectively connected with two groups of first liquid inlet ports (9-2) in the upper sand pouring device (9) and two groups of second liquid inlet ports (10-2) in the lower sand pouring device (10).

8. The cutting fluid supply system of the multi-wire cutting machine according to claim 7, characterized in that: In the liquid inlet assembly, a switch valve is arranged at the main liquid supply pipeline joint (1), and flow regulating valves are arranged at the four groups of liquid inlet manifolds.

9. The cutting fluid supply system of the multi-wire cutting machine according to claim 5, characterized in that: The cutting fluid collection and return assembly includes a cutting fluid collection tank (11), a cutting fluid return tank and a return liquid pump (5). The cutting fluid collection tank (11) is located below the sheave (8) and is communicated with the cutting fluid return tank. A filter screen is arranged between the cutting fluid collection tank (11) and the cutting fluid return tank. The cutting fluid return tank is arranged at the bottom of the cutting chamber of the multi-wire cutting machine and is communicated with the liquid inlet of the return liquid pump (5) installed on the back of the cutting chamber. The liquid outlet (6) of the return liquid pump is connected with the liquid inlet of the externally provided cutting fluid circulation cooling device (12).

10. A swing type multi-wire cutting machine, characterized in that: When assembling the cutting fluid supply system for the multi-wire cutting machine according to any one of claims 1 to 9, the swing type multi-wire cutting machine has a swing structure of the workbench, adopts a diamond cutting wire, the workpiece to be cut is hoisted on the swing workbench, and the swing workbench is driven by a lifting system to be transported downward from top to bottom to realize the feeding of the workpiece. During the cutting process, the upper sand pouring device (9) in the cutting fluid supply system for the multi-wire cutting machine sprays liquid on the workpiece, and the lower sand pouring device (10) performs waterfall-shaped liquid pouring on the cutting wire mesh.

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