A cutting device for a large-plate multi-wire cutting machine and a multi-wire cutting machine

Abstract

This divisional application relates to the field of stone cutting, in particular to a cutting device and a multi-wire cutting machine for a large stone slab. It includes a frame and a cutting assembly; the cutting assembly includes a first pay-and-reel mechanism, a second pay-and-reel mechanism, a first main guide wheel, a second main guide wheel, a third main guide wheel, a fourth main guide wheel and a guide wheel driving mechanism, the four main guide wheels extend in the horizontal longitudinal direction and are rotatably connected to the frame at both ends of the axis, the second pay-and-reel mechanism is located on the other lateral side of the frame, the first pay-and-reel mechanism and the second pay-and-reel mechanism both include pay-and-reel wheels, wheel driving components, wire arrangement wheels, wire arrangement devices, tension wheels, tension adjustment devices, in-and-out wire wheels and routing mechanisms; one end of the diamond wire is connected to the pay-and-reel wheel, and is connected to the corresponding main guide wheel after passing through the wire arrangement wheel, tension wheel and in-and-out wire wheels in sequence. This application can reduce the routing distance of the diamond wire, thereby reducing the wear of the metal wire and reducing the occurrence of wire breakage problems.

Description

[0001] This application is a divisional application with a patent application date of April 18, 2022, patent application number of 202210406677.X, and invention name of four-column four-guide wheel jacking type stone slab multi-wire cutting machine. Technical Field

[0002] The invention relates to the field of stone cutting, in particular to a cutting device of a large stone slab multi-wire saw and a multi-wire saw. Background Art

[0003] Diamond wire is a cutting tool made of electroplated diamond on the outer layer of metal wire. At present, diamond wire is widely used in cutting photovoltaic silicon wafers, sapphire, graphite, magnetic materials and other industries. The above fields where diamond wire cutting has been popularized are all processed objects of artificial materials, with uniform materials, uniform specifications and small sizes. The length, width and height of the cutting object are generally less than 500mm*500mm*300mm, and the cross-sectional area of ​​the cut product is less than 300mm*300mm. The diameter of the diamond wire generally used varies from 0.03 to 0.2mm, and the working tension of diamond wires of different wire diameters varies from 3 to 30N. The cutting stroke is generally less than 400mm. The main roller of the existing different types of multi-wire cutting machines has a smaller diameter (100mm-200mm in diameter), a shorter length (400-900mm in diameter), a winding wheel outer diameter of less than 250mm, and a small wire wheel diameter of less than 150mm.

[0004] Traditional stone cutting generally uses saw blades, rope saws, band saws and other materials with alloy blades for processing. The hard alloy has a certain thickness, so the traditional tool will form a saw seam of 3-10mm in the process of cutting the stone. In addition, the hard alloy tool has a large vibration when in rigid contact with the stone during processing, which easily causes the stone to break during processing. Generally, it can only process plates with a thickness of more than 10mm. However, the diamond wire has a flexible contact with the stone, there is no instantaneous impact load, the vibration is small and the noise is low, and the wire diameter is small, and the saw seam is less than 1mm. It can not only greatly improve the yield rate, but also can directly process a thin plate with a thickness of less than 5mm on the rough material without causing the stone to break during the cutting process. Naturally mined stone has many special features. First of all, the size of the rough stone is not uniform. Generally, the size is large and the weight is also large. Generally, a rough stone exceeds 20 tons, and the length, width and height can exceed 3000*2000*2000mm. The cross-sectional area of ​​the processed stone slab can reach 3000mm*2000mm. Moreover, the Mohs hardness of stone ranges from 2 to 9, and the hardness of different varieties varies greatly. Even the material of different positions of the same rough stone is different. In addition, natural stone itself has cracks and holes, and the material is very complex. This leads to the phenomenon of wire breaking when cutting stone with diamond wire. Once the wire breaks, the saw seam of diamond wire cutting is very small. After the stone is cut, it will deform due to internal stress or the stone will be adsorbed together due to the tension of cooling water, which will make it impossible to re-wire and cut the stone, so that the half-cut stone will be scrapped and cause losses. If you want to use diamond wire to cut stone and achieve good results, you need to use a larger wire diameter to reduce the wire breakage rate of the diamond wire during the cutting process, and the large wire diameter diamond wire also needs to match a larger tension to ensure the tension of the diamond wire. At the same time, a stone rough stone weighs 20 to 30 tons, and a processing output of more than 500 square meters of plates is produced at one time. In addition, the stone has a strong abrasiveness. The wire consumption per unit area of ​​diamond wire cutting is much greater than that of cutting other small-sized artificial materials. Therefore, if you want to complete the processing of a large rough stone at one time, you must use a winding wheel with a large wire storage capacity. At the same time, the span between the main rollers of large-sized rough materials exceeds 2000mm. The heat accumulated by friction during the cutting process is difficult to dissipate, and it is also difficult to discharge stone powder. Therefore, a larger amount of cooling water is needed to cool the diamond wire and flush out the cut material. The pressurized cooling water and stone powder formed during high-speed cutting will also put higher requirements on the waterproof performance of the bearing box.

[0005] In the field of stone processing, the length, width and height of many stone blocks are greater than 3000*2000*2000mm, and the cutting cross-sectional area exceeds 3000*2000mm. When cutting with diamond wire, only one cutting mesh surface can contact the workpiece. Therefore, the optimal structure is to use a parallel four-roller structure to form a cutting mesh surface. At the same time, the diameter of the diamond wire suitable for cutting stone processing exceeds 0.3mm, and the working tension of the diamond wire exceeds 60N.

[0006] The Chinese utility model patent with application number 201520035317.9 discloses a multi-wire cutting machine for marble, comprising a machine base, a workbench and a mounting base arranged on the machine base, the mounting base being located above the workbench, the marble to be cut being fixed on the workbench, at least one of the two components of the workbench and the mounting base being liftable and arranged on the machine base, the mounting base being provided with a plurality of winding rollers rotatable around their own axis, cutting steel wires sequentially wound around the plurality of winding rollers to form a plurality of cutting wires, all the cutting wires on each winding roller being spaced apart along the length extension direction of the winding roller, the mounting base being further provided with a wire retracting and releasing mechanism for retracting and releasing the steel wires, and a cutting drive mechanism for driving at least one of the winding rollers to rotate and thereby driving the cutting wires to reciprocate. There are four winding rollers, and the steel wire is led out from a wire groove of the first winding roller in sequence, enters a wire groove of the second winding roller, enters a wire groove of the third winding roller, enters a wire groove of the fourth winding roller, and then enters the next wire groove of the first winding roller, and is tensioned on the periphery of the four winding rollers in this cycle to form a plurality of cutting wires. A roller frame is also fixed on the mounting seat, one end of the winding roller is rotatably mounted on the mounting seat, and the other end is rotatably mounted on the roller frame, and the roller frame is "H" shaped.

[0007] The above-mentioned multi-wire cutting of marble has the following disadvantages: 1. The roller frame is a cantilever structure as a whole. In the process of cutting large-sized stones, the cutting assembly itself has a large weight due to the need for a longer guide wheel. The cantilever structure has a long force arm and the support point is subjected to force on one side, which has poor stability and is prone to resonance and shaking. 2. The wire-releasing mechanism feeds the wire from one of the two winding rollers at the bottom, and the wire-receiving mechanism outputs the wire from the other of the two winding rollers. Since the diamond wire arranged between the two winding rollers at the bottom forms a cutting mesh surface, the cutting mesh surface is a working surface for cutting stones. The two ends of the diamond wire are respectively connected to the wire-releasing mechanism and the wire-receiving mechanism, so that the two ends of the diamond wire are directly involved in the cutting of the stone, resulting in large fluctuations and the diamond wire is easy to break. In addition, the dust and water vapor generated by the diamond wire and the stone during the cutting process are easily brought into the wire-receiving mechanism and the wire-releasing mechanism by the diamond wire, which is easy to cause electrical failures and affect the use of both. 3. Due to the heavy weight of the winding roller, a hoist is required for lifting when disassembling and assembling the winding roller. Since the roller frame is in an "H" shape, the upper and lower winding rollers on the same side are distributed above and below the middle crossbar of the roller frame. Under the obstruction of the middle crossbar, it is difficult to lift and disassemble the lower winding roller. 4. The cantilevered cutting assembly moves up and down for cutting. The H-shaped cutting assembly bears the gravity and cutting force of the winding roller while moving as a whole for cutting. The overall stability is poor, which easily causes wire breakage and uneven cutting surface. Summary of the invention

[0008] The purpose of the present invention is to overcome the above disadvantages and provide a four-column four-guide wheel jacking type stone slab multi-wire sawing machine to solve the problems of insufficient stability of the cutting machine, easy breakage of the diamond wire and water vapor affecting the wire-retracting and -releasing mechanism when cutting stone slabs.

[0009] The present invention is implemented by the following technical scheme: a four-column four-guide wheel jacking type stone slab multi-wire cutting machine, characterized in that it comprises a machine platform and a frame arranged above the machine platform, a cutting assembly is arranged on the frame, and a jacking mechanism is arranged on the machine platform below the cutting assembly for movably lifting the stone so that the cutting assembly can cut;

[0010] The cutting assembly comprises a diamond wire, a first wire-reeling and reeling mechanism, a second wire-reeling and reeling mechanism, a first main guide wheel, a second main guide wheel, a third main guide wheel, a fourth main guide wheel and a guide wheel driving mechanism. The four main guide wheels extend in a horizontal longitudinal direction and are rotatably connected to the frame at both ends of the axial direction. The first main guide wheel and the second main guide wheel are located at the same height, the third main guide wheel and the fourth main guide wheel are located at the same height, and the first main guide wheel is located above the fourth main guide wheel, and the second main guide wheel is located above the third main guide wheel. The guide wheel driving mechanism is connected to the four main guide wheels and drives each main guide wheel to rotate. The first wire-reeling and reeling mechanism and the second wire-reeling and reeling mechanism are installed on the frame and are respectively connected to the two ends of the diamond wire. One end of the diamond wire enters the first main guide wheel after being released from the first wire-reeling and reeling mechanism, and is repeatedly wound on the four main guide wheels in the direction of the first main guide wheel, the second main guide wheel, the third main guide wheel and the fourth main guide wheel in turn, and exits from the second main guide wheel. The diamond wire forms a first cutting mesh surface composed of a plurality of cutting lines arranged in parallel and spaced relation between the bottoms of the third main guide wheel and the fourth main guide wheel for cutting stone.

[0011] Further, the frame includes a first column, a second column, a third column and a fourth column fixedly mounted on the platform, the first column and the second column are located at the longitudinal ends of one lateral side of the platform, the third column and the fourth column are located at the longitudinal ends of the other lateral side of the platform, a first longitudinal back plate located on the outer sides of the first column and the second column is fixedly connected between the first column and the second column, a second longitudinal back plate located on the outer sides of the third column and the fourth column is fixedly connected between the first column and the fourth column, a first crossbeam is fixedly connected between the first column and the fourth column, and a second crossbeam is fixedly connected between the second column and the third column;

[0012] The axial ends of the first dominant wheel and the fourth dominant wheel are rotatably connected to the first column and the second column respectively, the axial ends of the second dominant wheel and the third dominant wheel are rotatably connected to the third column and the fourth column respectively, the first retractable wire mechanism is installed on the upper part of the first longitudinal back plate, and the second retractable wire mechanism is installed on the upper part of the second longitudinal back plate.

[0013] Furthermore, the first cross beam and the second cross beam are located on the upper part of the four columns, and a spray system is installed on the first cross beam and the second cross beam.

[0014] Furthermore, inspection openings are provided below the first longitudinal back plate and the second longitudinal back plate.

[0015] Furthermore, the machine platform includes an upper body, a lower body, and four upright piers connected between the upper body and the lower body, and the four upright piers are respectively arranged at both longitudinal ends of the transverse sides of the machine platform;

[0016] The jacking mechanism includes a lifting platform for placing stones arranged between four piers, four groups of lifting mechanisms for lifting the lifting platform, and a lifting drive device for driving the four groups of lifting mechanisms to move synchronously. Each group of lifting mechanisms includes a vertical T-type screw rod and a lifting guide rail. The T-type screw rod is rotatably connected to the upper body and the lower body, and is threadedly connected to the lifting platform. The lifting guide rail is installed on the corresponding pier and is vertically slidably connected to the lifting platform. A channel is also reserved in the middle of the upper body for facilitating the lifting of the stone to be cut by the lifting platform, and the frame is fixed on the upper body.

[0017] Furthermore, the machine is made of reinforced cement material.

[0018] Furthermore, the first and second reeling and winding mechanisms each include a reeling and winding wheel, a wheel driving component for driving the reeling and winding wheel to rotate, a wire arranging wheel arranged beside the reeling and winding wheel, a wire arranging device for driving the wire arranging wheel to move longitudinally, a tension wheel arranged on one longitudinal side of the wire arranging wheel, a tension adjusting device for driving the tension wheel to move, an in-and-out wire wheel arranged above the wire arranging wheel, and a wire routing mechanism for driving the in-and-out wire wheel to move longitudinally, a wire exit point A of the wire arranging wheel, a wire entry point B of the tension wheel, a wire exit point C of the tension wheel and a wire entry point D of the in-and-out wire wheel are coplanar, a diamond wire located between a wire exit point E of the in-and-out wire wheel and a wire entry point of the first dominant wheel is perpendicular to the axis of the first dominant wheel or the second dominant wheel, one end of the diamond wire is connected to the reeling and winding wheel, and is connected to the corresponding dominant wheel after passing through the wire arranging wheel, the tension wheel and the in-and-out wire wheel in sequence.

[0019] Furthermore, the routing mechanism includes a longitudinal screw and a longitudinal guide rod fixedly arranged on the first longitudinal back plate or the second longitudinal back plate and extending longitudinally, a slide plate threadedly connected to the longitudinal screw and slidably arranged with the longitudinal guide rod, and a screw driving component for driving the longitudinal screw to rotate. The slide plate is provided with an arc-shaped adjustment hole which vertically penetrates the slide plate along a direction parallel to the longitudinal screw and extends in an arc shape on the slide plate, and the center line of the arc-shaped adjustment hole is parallel to the extension direction of the longitudinal screw; the inlet and outlet wire wheels are rotatably connected to the connecting plate and the rotation center line is perpendicular to the extension direction of the longitudinal screw, and the connecting plate is adjustably fixed to the slide plate by bolts passing through the arc-shaped adjustment hole.

[0020] Furthermore, the first leading wheel, the second leading wheel, the third leading wheel and the fourth leading wheel all include a guide wheel body, and plugs for connecting the main bearing box or the auxiliary bearing box are coaxially fixed at both axial ends of the guide wheel body, and the guide wheel body is preset with accommodating cavities on the axial outer sides of the two plugs, and one axial end of the main bearing box and the auxiliary bearing box can be partially plugged into two corresponding accommodating cavities, and the connecting gaps at the relative movement between the main shafts of the main and auxiliary bearing boxes and the front end covers close to the centering plugs are respectively hidden in the two accommodating cavities.

[0021] The cutting machine adopts the jacking type, that is, the cutting component is set on the frame, the jacking mechanism is set on the machine table, the upper cutting component is separated from the lower jacking mechanism, the vibration generated by the cutting is absorbed by the machine table and the ground, and the stability is good. In addition, the cutting machine adopts the form of upper inlet and upper outlet, in which the diamond wire bypasses the first and second leading wheels above before entering the third and fourth leading wheels, in which the first and second leading wheels play a buffering role, and the diamond wire does not directly participate in the cutting after coming out of the first and second retractable wire mechanisms. The diamond wire has small fluctuations and is not easy to break. In addition, the dust and water vapor generated by the diamond wire and the stone during the cutting process are not easily brought into the second and first retractable wire mechanisms by the diamond wire. In addition, the structure of four parallel leading wheels is adopted, and the four leading wheels can open a larger cutting room, which can adapt to the cutting of stones of various sizes and shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the cutting assembly and the frame in an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the structure of a rack in an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the use status of an embodiment of the present invention;

[0026] Figure 5 It is a structural schematic diagram of a machine platform and a lifting mechanism in an embodiment of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the first wire-retracting and -releasing mechanism in an embodiment of the present invention;

[0028] Figure 7 It is a schematic diagram of the use state of the first wire-retracting and -releasing mechanism in an embodiment of the present invention;

[0029] Figure 8 It is a structural schematic diagram of a wiring mechanism in an embodiment of the present invention;

[0030] Fig. 9 for Figure 6 Middle F is an enlarged schematic diagram;

[0031] Fig.10 This is a schematic diagram of the structure of the capstan in an embodiment of the present invention;

[0032] Fig.11 Schematic diagram of the structure of the main bearing box in an embodiment of the present invention.

[0033] Explanation of reference numerals: 1-machine platform, 11-upper body, 12-lower body, 13-pier, 2-frame, 21-first column, 22-second column, 23-third column, 24-fourth column, 25-first longitudinal back plate, 26-second longitudinal back plate, 27-first beam, 28-second beam, 3-cutting assembly, 31-diamond wire, 32-first retractable wire mechanism, 321-retractable wire wheel, 322-wire wheel driving component, 323-wire arrangement wheel, 324-wire arrangement device, 325-tension wheel, 326-tension adjustment device, 327-in and out wire wheel, 328-wire routing mechanism, 3281-longitudinal screw rod, 3282-longitudinal guide rod, 3283-slide plate, 32831-arc adjustment hole, 3284-screw rod driving component, 3285-connecting plate, 33-second retractable wire mechanism, 34-first main wheel, 341-line groove, 35-second main wheel, 36-third main wheel, 37-fourth main wheel, 38-guide wheel drive mechanism, 4-lifting mechanism, 41-lifting platform, 42-lifting mechanism, 421-T-type screw rod, 422-lifting guide rail, 43-lifting drive device, 5-inspection port, A-line outlet point of the wire arrangement wheel, B-line entry point of the tension wheel, C-line outlet of the tension wheel Point, D-inlet point of the inlet and outlet wheel, E-outlet point of the inlet and outlet wheel, a-stone, b-first cutting mesh surface, c1-guide wheel body, c13-accommodating cavity, c14-accommodating cavity, c3-plug, c4-plug, d-main bearing box, d1-spindle, d2-housing, d3-front end cover, d4-rear end cover, d5-bearing, e-auxiliary bearing box, e1-spindle, f-connecting gap. DETAILED DESCRIPTION

[0034] The present invention is described in detail below in conjunction with the accompanying drawings:

[0035] This embodiment relates to a four-column four-guide wheel jacking type stone slab multi-wire sawing machine, such as Figure 1-9 As shown, it comprises a machine platform 1 and a frame 2 arranged above the machine platform 1, a cutting assembly 3 is arranged on the frame 2, and a lifting mechanism 4 is arranged on the machine platform 1 and is located below the cutting assembly 3 and is used for lifting the stone a so that the cutting assembly 3 can cut it;

[0036] The cutting assembly 3 includes a diamond wire 31, a first wire-retracting and releasing mechanism 32, a second wire-retracting and releasing mechanism 33, a first main guide wheel 34, a second main guide wheel 35, a third main guide wheel 36, a fourth main guide wheel 37 and a guide wheel driving mechanism 38. The four main guide wheels extend in a horizontal longitudinal direction and are rotatably connected to the frame 2 at both ends of the axis. The first main guide wheel 34 and the second main guide wheel 35 are located at the same height, the third main guide wheel 36 and the fourth main guide wheel 37 are located at the same height, and the first main guide wheel 34 is located above the fourth main guide wheel 37, and the second main guide wheel 35 is located above the third main guide wheel 36; the guide wheel driving mechanism 38 is connected to the four main guide wheels. The first and second lead wheels are connected and driven to rotate. The first and second lead wheels 32 and 33 are installed on the frame 2 and connected to the two ends of the diamond wire 31 respectively. One end of the diamond wire 31 is fed into the first lead wheel 34 after being released from the first lead wheel 32, and is repeatedly wound around the four lead wheels in the direction of the first lead wheel 34, the second lead wheel 35, the third lead wheel 36 and the fourth lead wheel 37 in sequence, and the wire is discharged from the second lead wheel 35. The diamond wire 31 forms a first cutting mesh b composed of a plurality of mutually parallel and spaced cutting lines between the bottoms of the third and fourth lead wheels 36 and 37 for cutting the stone a. Fig. 9 As shown, the main guide wheel is provided with three wire grooves 341 for winding the diamond wire.

[0037] like Figure 1 , 4 As shown, the cutting machine adopts a jacking type, that is, the cutting component is set on the frame, the jacking mechanism is set on the machine table, the upper cutting component is separated from the lower jacking mechanism, the vibration generated by the cutting is absorbed by the machine table and the ground, and the stability is good. In addition, the cutting machine adopts the form of upper inlet and upper outlet, in which the diamond wire bypasses the first and second leading wheels above before entering the third and fourth leading wheels, in which the first and second leading wheels play a buffering role, and the diamond wire does not directly participate in the cutting after coming out of the first and second retractable wire mechanisms. The diamond wire has small fluctuations and is not easy to break, and the dust and water vapor generated by the diamond wire and the stone during the cutting process are not easily brought into the second and first retractable wire mechanisms by the diamond wire. And the structure of four parallel leading wheels is adopted, and the four leading wheels can open a larger cutting room, which can adapt to the cutting of stones of various sizes and shapes.

[0038] As a further improvement, Figure 1-4As shown, the frame 2 includes a first column 21, a second column 22, a third column 23 and a fourth column 24 fixedly arranged vertically on the machine platform 1, the first column 21 and the second column 22 are located at the longitudinal ends of one lateral side of the machine platform 1, the third column 23 and the fourth column 24 are located at the longitudinal ends of the other lateral side of the machine platform 1, a first longitudinal back plate 25 located on the outer sides of the first column 21 and the second column 22 is fixedly connected, a second longitudinal back plate 26 located on the outer sides of the third column 23 and the fourth column 24 is fixedly connected, a first crossbeam 27 is fixedly connected between the first column 21 and the fourth column 24, and a second crossbeam 28 is fixedly connected between the second column 22 and the third column 23;

[0039] The axial ends of the first dominant wheel 34 and the fourth dominant wheel 37 are rotatably connected to the first column 21 and the second column 22 respectively, the axial ends of the second dominant wheel 35 and the third dominant wheel 36 are rotatably connected to the third column 23 and the fourth column 24 respectively, the first retractable wire mechanism 32 is installed on the upper part of the first longitudinal back plate 25, and the second retractable wire mechanism 33 is installed on the upper part of the second longitudinal back plate 26.

[0040] The frame 2 may be integrally cast or assembled. The first crossbeam 27 and the second crossbeam 28 may also be structures similar to crossbeams, such as triangular brackets, top covers or backboards, and the first longitudinal backboard 25 and the second longitudinal backboard 26 may also be structures similar to backboards, such as crossbeam supports, triangular supports, etc.

[0041] Preferably, the first cross beam 27 and the second cross beam 28 are located at the upper part of the four columns, and a spray system is installed on the first cross beam 27 and the second cross beam 28 .

[0042] Since the tension of the diamond wire is large and the force is tens of kilograms, winding hundreds of wires on four guide wheels will weigh several tons. Since the size of the stone to be cut is large, the main wheel needs to be made very large. The large size leads to a large force arm of the main wheel. Through four columns, a frame structure is formed with the longitudinal back plate and the cross beam. The back plate and the cross beam are close to the force direction of the wire net, and the force arm is short, which can play a good force effect. In addition to bearing the force, each beam or column also plays other roles. The first cross beam 27 and the second cross beam 28 can support the spray system. The second longitudinal back plate 26 and the first longitudinal back plate 25 can be used to install the wire retracting and releasing mechanism while bearing the role of the longitudinal beam. The columns are used to transmit the force. Four columns are directly fixed on the machine table. The vibration generated during cutting is transmitted to the ground through the machine table. Unlike the cantilever structure, a long force arm will be generated, thereby affecting the stability. In addition, the second longitudinal back plate 26 and the first longitudinal back plate 25 are installed on the outside of the column. There is no obstruction between the upper and lower main wheels, which is convenient to operate when hoisting the main wheel.

[0043] As a further improvement, Figure 2-3 As shown, an inspection opening 5 is left below the first longitudinal back plate 25 and the second longitudinal back plate 26. Since the inspection opening is left below the longitudinal back plate, it is convenient for the staff to disassemble and maintain. The inspection opening can also be formed by digging a hole on the back plate.

[0044] As a further improvement, Figure 1 , 5 As shown, the machine platform 1 comprises an upper body 11, a lower body 12 and four upright piers 13 connected between the upper body 11 and the lower body 12, and the four upright piers 13 are respectively arranged at both longitudinal ends of the transverse sides of the machine platform 1;

[0045] The jacking mechanism 4 includes a lifting platform 41 for placing stones, which is arranged between four piers 13, four groups of lifting mechanisms 42 for lifting the lifting platform 41, and a lifting drive device 43 for driving the four groups of lifting mechanisms 42 to move synchronously. Each group of lifting mechanisms 42 includes a vertical T-type screw rod 421 and a lifting guide rail 422. The T-type screw rod 421 is rotatably connected to the upper body 11 and the lower body 12, and is threadedly connected to the lifting platform 41. The lifting guide rail 422 is installed on the corresponding pier 13 and is vertically slidably connected to the lifting platform 41. A channel is also reserved in the middle of the upper body 11 for facilitating the lifting platform 41 to lift the stone a to be cut. The frame 2 is fixed on the upper body 11.

[0046] The lower part of the cutting machine is the machine platform and the lifting mechanism. The machine platform is composed of an upper body, a lower body and four piers. The lower body directly contacts the ground, and the upper body is used to install the frame and cutting components. At the same time, the upper body can be walked on, which is convenient for operators to maintain. The overall structure is stable and low in cost. At the same time, the four guide rails 422 of the four lifting mechanisms 42 are arranged on four piers, which are easy to install and have good force.

[0047] Furthermore, the machine 1 is made of reinforced concrete. The machine 1 is made of reinforced concrete, which is low in cost and can be manufactured in sections. It can also be manufactured by welding steel plates, castings, or steel plates with fillers.

[0048] As a further improvement, Figure 6-8As shown, the first wire-reeling mechanism 32 and the second wire-reeling mechanism 33 each include a wire-reeling wheel 321, a wire-reel driving component 322 for driving the wire-reeling wheel 321 to rotate, a wire-arranging wheel 323 disposed beside the wire-reeling wheel 321, a wire-arranging device 324 for driving the wire-arranging wheel 323 to move longitudinally, a tension wheel 325 disposed beside the longitudinal side of the wire-arranging wheel 323, a tension adjusting device 326 for driving the tension wheel 325 to move, an in-and-out wire wheel 327 disposed above the wire-arranging wheel 323, and a wire-arranging device 324 for driving the in-and-out wire wheel 323 to move longitudinally. The wire routing mechanism 328 moves longitudinally, the wire exit point A of the wire arrangement wheel 323, the wire entry point B of the tension wheel 325, the wire exit point C of the tension wheel 325 and the wire entry point D of the in-and-out wire wheel 327 are coplanar, the diamond wire between the wire exit point E of the in-and-out wire wheel 327 and the wire entry point of the first leading wheel 34 is perpendicular to the axis of the first leading wheel 34 or the second leading wheel 35, one end of the diamond wire 31 is connected to the reel 321, and is connected to the corresponding leading wheel after passing through the wire arrangement wheel 323, the tension wheel 325 and the in-and-out wire wheel 327 in sequence. As a preferred mode, the tension adjustment device 326 controls the circumferential longitudinal swing of the tension wheel 325.

[0049] In order to realize the reciprocating operation of the multi-wire cutting machine and form a stable tension to ensure cutting and unbroken wire, the turning radius of the small guide wheel is small, and the diamond wire is easy to cause twisting and skipping. Therefore, the fewer small guide wheels, the shorter the routing distance, and the less likely it is to cause wire breakage and wear of the diamond wire during routing. At the same time, the fewer small guide wheels, the lower the cost of use and the lower the failure rate. The cutting machine uses three guide wheels for wiring, with fewer parts and a low failure rate.

[0050] As a preferred method, Figure 8 As shown, the routing mechanism 328 includes a longitudinal screw rod 3281 and a longitudinal guide rod 3282 fixedly arranged on the first longitudinal back plate 25 or the second longitudinal back plate 26 and extending in the longitudinal direction, a slide plate 3283 threadedly connected to the longitudinal screw rod 3281 and slidably arranged with the longitudinal guide rod 3282, and a screw driving component 3284 for driving the longitudinal screw rod 3281 to rotate, and the slide plate 3283 is provided with an arc-shaped adjustment hole 32831 which vertically penetrates the slide plate 3283 in a direction parallel to the longitudinal screw rod 3281 and extends in an arc shape on the slide plate 3283, and the center line of the arc-shaped adjustment hole 32831 is parallel to the extension direction of the longitudinal screw rod 3281; the in-and-out line wheel 327 is rotatably connected to the connecting plate 3285 and the rotation center line is perpendicular to the extension direction of the longitudinal screw rod 3281, and the connecting plate 3285 is adjustably fixed to the slide plate 3283 by bolts penetrating the arc-shaped adjustment hole 32831. The wire routing mechanism can adjust the longitudinal position of the inlet and outlet wire wheels to adapt to the cutting of stones of different sizes.

[0051] Further, if Figure 10-11As shown, the first guiding wheel 34, the second guiding wheel 35, the third guiding wheel 36 and the fourth guiding wheel 37 all include a guide wheel body c1, and plugs c3 and c4 for connecting to the main bearing box d or the auxiliary bearing box e are coaxially fixed at both axial ends of the guide wheel body c1, and the guide wheel body c1 is preset with accommodating cavities c13 and c14 on the axial outer sides of the two plugs c3 and c4, and one axial end of the main bearing box d and the auxiliary bearing box e can be partially plugged into two corresponding accommodating cavities c13 and c14, and the connecting gap f at the relative movement between the main shaft d1 and e1 of the main and auxiliary bearing boxes and the front end covers close to the centering plugs c3 and c4 are respectively hidden in the two accommodating cavities c13 and c14.

[0052] The structures of the main and auxiliary bearing boxes are similar, such as Fig.11 As shown, the main bearing box d mainly includes a main shaft d1, a shell d2, a bearing d5 arranged between the main shaft d1 and the shell d2, a front end cover d3 and a rear end cover d4 for sealing the front and rear sides of the shell d2, wherein the front side is the side of the main bearing box close to the main guide wheel, the front end cover b3, the rear end cover d4 and the shell d2 are fixed together and installed on the frame, and the main shaft d1 is rotatably arranged relative to the external shell component. Since the main shaft d1 can rotate relative to the front end cover d3, and the rotation speed of the main shaft d1 is fast, it is difficult to form an effective seal in the connecting gap f at the relative motion between the main shaft d1 and the front end cover d3 by conventional methods such as sealing rings, labyrinths, etc., and the connecting gap f is close to the main guide wheel, and the cooling water sprayed by the spray system directly acts on the main guide wheel, wherein the cooling water and dust directly rush into the connecting gap d, so that a large amount of cold water enters the bearing box body, which is easy to cause bearing failure.

[0053] Since a receiving cavity is provided in the leading wheel for receiving the bearing box, the connection gap is hidden therein, which can prevent the cooling water from rushing straight in, and has a similar effect to a labyrinth seal, with good waterproof effect. In addition, the plug is closer to the supporting point of the leading wheel, similar to a 1-meter guide wheel, which means that the supporting point is at a position of 0.8 meters, so that the force is better. In addition, since the bearing box is embedded, the receiving cavity at both ends of the leading wheel is hollowed out, which is lighter and reduces the weight of the guide wheel.

[0054] The working principle and process of this embodiment are as follows: the stone a is placed on the lifting platform 41 of the lifting mechanism 4, and the stone is gradually lifted up by the four lifting mechanisms 42. The four main guide wheels of the cutting assembly 3 are repeatedly driven by their respective guide wheel driving mechanisms 38 to rotate forward and reverse, and then the first cutting mesh surface b repeatedly saws the stone a until the stone is cut. During the working process of the cutting assembly 3, the first wire-reeling mechanism 32 is used to release the wire and continuously provide new diamond wire 31 to the main guide wheel, and the second wire-reeling mechanism 33 continuously rewinds the wire to collect the damaged diamond wire into a roll.

[0055] Although the present invention is illustrated and described by specific embodiments and their alternatives, it should be understood that various changes and modifications within the spirit and scope of the present invention can be implemented. Therefore, it should be understood that the present invention is not limited in any sense except by the limitations of the attached claims and their equivalents.

Claims

1. A cutting device for a large stone slab multi-wire saw, characterized in that: The machine comprises a frame (2), wherein a cutting assembly (3) is arranged on the frame (2); the cutting assembly (3) comprises a diamond wire (31), a first wire-retracting and releasing mechanism (32), a second wire-retracting and releasing mechanism (33), a first main guide wheel (34), a second main guide wheel (35), a third main guide wheel (36), a fourth main guide wheel (37) and a guide wheel driving mechanism (38), wherein the four main guide wheels extend in a horizontal longitudinal direction and are rotatably connected to the frame (2) at both ends of the axis, wherein the first main guide wheel (34) and the second main guide wheel (35) are respectively located above the fourth main guide wheel (37) and the third main guide wheel (36); the guide wheel driving mechanism (38) is connected to the four main guide wheels and drives the four main guide wheels to rotate, wherein the diamond wire (31) is repeatedly wound around the four main guide wheels, and a first cutting mesh surface composed of a plurality of mutually parallel and spaced cutting wires is formed between the bottoms of the third main guide wheel (36) and the fourth main guide wheel (37) for cutting stone; The first wire-reeling and reeling mechanism (32) is located on one lateral side of the frame (2), and the second wire-reeling and reeling mechanism is located on the other lateral side of the frame (2). The first wire-reeling and reeling mechanism (32) and the second wire-reeling and reeling mechanism (33) both comprise a wire-reeling and reeling wheel (321), a wire-reel driving component (322) for driving the wire-reeling and reeling wheel (321) to rotate, a wire-arranging wheel (323) arranged beside the wire-reeling and reeling wheel (321), a wire-arranging device (324) for driving the wire-arranging wheel (323) to move longitudinally, and a wire-arranging device (325) arranged on the wire-arranging wheel (326). A tension wheel (325) is arranged on a longitudinal side of the wheel (323), a tension adjustment device (326) for driving the tension wheel (325) to move, an inlet and outlet wheel (327) arranged above the wire arrangement wheel (323), and a wire routing mechanism (328) for driving the inlet and outlet wheel (327) to move longitudinally; one end of the diamond wire (31) is connected to the wire reel (321), and is connected to the corresponding driving wheel after passing through the wire arrangement wheel (323), the tension wheel (325) and the inlet and outlet wheel (327) in sequence; The line exit point A of the wire arrangement wheel (323), the line entry point B of the tension wheel (325), the line exit point C of the tension wheel (325) and the line entry point D of the in-and-out line wheel (327) are coplanar, and the diamond wire located between the line exit point E of the in-and-out line wheel (327) and the line entry point of the first main guide wheel (34) is perpendicular to the axis of the first main guide wheel (34) or the second main guide wheel (35).

2. The cutting device of the stone slab multi-wire saw according to claim 1 is characterized in that: The first wire-reeling and retracting mechanism (32) and the second wire-reeling and retracting mechanism (33) are respectively connected to two ends of the diamond wire (31); one end of the diamond wire (31) is fed into the first main guide wheel (34) after being reeled out by the first wire-reeling and retracting mechanism (32), and is wound along the direction of the first main guide wheel (34), the second main guide wheel (35), the third main guide wheel (36) and the fourth main guide wheel (37), and is discharged from the second main guide wheel (35), thereby forming an upper wire-in and upper wire-out structure.

3. The cutting device of the stone slab multi-wire saw according to claim 1 is characterized in that: The wire routing mechanism (328) comprises a longitudinal screw rod (3281) and a longitudinal guide rod (3282) extending in the longitudinal direction, a slide plate (3283) threadedly connected to the longitudinal screw rod (3281) and slidably arranged with the longitudinal guide rod (3282), and a screw rod driving component (3284) for driving the longitudinal screw rod (3281) to rotate, and the inlet and outlet wire wheels (327) are rotatably arranged on the slide plate (3283).

4. The cutting device of the stone slab multi-wire saw according to claim 3 is characterized by: The slide plate (3283) is provided with an arc-shaped adjustment hole (32831) which vertically penetrates the slide plate (3283) in a direction parallel to the longitudinal screw rod (3281) and extends in an arc shape on the slide plate (3283); the center line of the arc-shaped adjustment hole (32831) is parallel to the extension direction of the longitudinal screw rod (3281); the inlet and outlet wire wheels (327) are rotatably connected to the connecting plate (3285) and the rotation center line is perpendicular to the extension direction of the longitudinal screw rod (3281); the connecting plate (3285) is adjustably fixed to the slide plate (3283) by means of bolts passing through the arc-shaped adjustment hole (32831).

5. The cutting device of the stone slab multi-wire saw according to claim 1, characterized in that: The frame (2) comprises a first column (21), a second column (22), a third column (23) and a fourth column (24); the first column (21) and the second column (22) are located at two longitudinal ends of one transverse side; the third column (23) and the fourth column (24) are located at two longitudinal ends of the other transverse side; a first longitudinal back plate (25) located on the outer sides of the first column (21) and the second column (22) is fixedly connected between the first column (21) and the second column (22); a second longitudinal back plate (26) located on the outer sides of the third column (23) and the fourth column (24) is fixedly connected between the third column (23) and the fourth column (24); the first retractable wire mechanism (32) is mounted on the upper part of the first longitudinal back plate (25); and the second retractable wire mechanism (33) is mounted on the upper part of the second longitudinal back plate (26).

6. The cutting device of the stone slab multi-wire saw according to claim 5, characterized in that: A first crossbeam (27) is fixedly connected between the first column (21) and the fourth column (24), and a second crossbeam (28) is fixedly connected between the second column (22) and the third column (23).

7. The cutting device of the stone slab multi-wire saw according to claim 1, characterized in that: The first leading wheel (34), the second leading wheel (35), the third leading wheel (36) and the fourth leading wheel (37) all include a guide wheel body (c1), and plugs (c3, c4) for connecting to a main bearing box (d) or a secondary bearing box (e) are coaxially fixedly arranged at both axial ends of the guide wheel body (c1), and accommodating cavities (c13, c14) are preset on the axial outer sides of the two plugs (c3, c4), and one axial end of the main bearing box (d) and the secondary bearing box (e) can be partially plugged into two corresponding accommodating cavities (c13, c14), and a connecting gap (f) located at a relative movement between the main shaft (d1, e1) of the main and secondary bearing boxes and the front end covers close to the centering plugs (c3, c4) is respectively hidden in the two accommodating cavities (c13, c14).

8. A multi-wire saw for large stone slabs, comprising a cutting device for a multi-wire saw for large stone slabs according to any one of claims 1 to 7, characterized in that: It also comprises a machine platform (1), the frame (2) being arranged on the machine platform (1), and the machine platform (1) being provided with a lifting mechanism (4) located below the cutting assembly (3) and used for lifting the stone material so that the cutting assembly (3) can perform cutting.

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