Double cantilever down-pressing multi-wire saw machine

Abstract

The present application relates to the field of stone cutting, in particular to a double cantilever down-pressing type multi-wire cutting machine. The double cantilever down-pressing type multi-wire cutting machine comprises a cutting assembly and a support. The cutting assembly comprises a back plate. A plurality of main guide wheels are mounted on the front surface of the back plate. The central shafts of the main guide wheels are perpendicular to the back plate. One end of each main guide wheel is rotatably connected to the back plate, forming a cantilever structure. A cutting net surface is formed after the diamond wires are wound around the main guide wheels. Two wire winding and unwinding systems for connecting the two ends of the diamond wires are mounted on the back plate. A rotating device is also mounted on the back plate. One of the wire winding and unwinding systems is used to feed the diamond wires to the corresponding main guide wheels, and the other wire winding and unwinding system is used to continuously wind the diamond wires. The cutting assembly is installed on one side of the support. The back surface of the back plate is slidably connected to the support, so that the cutting assembly also forms a cantilever connection structure with the support. A lifting device is also provided on the support to drive the lifting movement of the cutting assembly. The double cantilever down-pressing type multi-wire cutting machine can continuously cut stone and is not limited by the length of the stone.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of stone cutting, in particular to a double cantilever down-pressing type multi-wire cutting machine. BACKGROUND

[0002] The diamond wire is a cutting tool made of diamond plated on the outer layer of metal steel wire. At present, the diamond wire is widely used in cutting photovoltaic silicon wafer, sapphire, graphite, magnetic material and other industries. With the development of multi-wire cutting machine, the diamond wire multi-wire cutting machine has been applied to the cutting of stone. The cutting assembly is an important part of multi-wire cutting and is the main movement mechanism for realizing the cutting action.

[0003] The Chinese utility model patent (application number 201520035317.9) discloses a marble multi-wire cutting machine, which comprises a base, a workbench and a mounting seat arranged on the base. The mounting seat is located above the workbench. The marble to be cut is fixed on the workbench. At least one of the workbench and the mounting seat is arranged on the base in a lifting manner. The mounting seat is provided with a plurality of winding rollers which can rotate around their own axis, a steel wire for cutting which is sequentially wound on the winding rollers to form a plurality of cutting wires, all the cutting wires on each winding roller are distributed in the length extension direction of the winding roller, a take-up mechanism for winding and unwinding the steel wire, and a cutting drive mechanism for driving at least one winding roller to rotate and drive the cutting wire to reciprocate. There are four winding rollers. The steel wire is sequentially led out from a line groove of the first winding roller, enters a line groove of the second winding roller, enters a line groove of the third winding roller, enters a line groove of the fourth winding roller, and then enters the next line groove of the first winding roller, so as to be tensioned on the periphery of the four winding rollers to form a plurality of cutting wires. A roller frame is fixed on the mounting seat. One end of the winding roller is rotatably connected to the mounting seat, and the other end is rotatably connected to the roller frame. The roller frame is in the shape of "H".

[0004] The marble multi-wire cutting machine has the following problems: 1. The two ends of the winding roller are rotatably connected to the H-shaped roller frame. The diamond wire is wound around the four winding rollers to form a cutting chamber for cutting stone. The multi-wire cutting machine can only cut stone with a size corresponding to the cutting chamber. When the length of the stone exceeds the size of the roller frame, the horizontal bar on the front side of the H-shaped roller frame will interfere with the stone. 2. The take-up mechanism and the take-up mechanism are arranged on the left and right sides of the front of the mounting seat, and are separated by the winding roller and the roller frame. Therefore, it is not possible to observe the working conditions of the two take-up mechanisms at the same time, which increases the difficulty of maintenance and debugging of the take-up mechanisms. SUMMARY

[0005] The present application aims to provide a double cantilever down-pressing multi-wire cutting machine capable of continuously cutting stone without being limited by the length of the stone.

[0006] The present application is achieved by the following technical scheme: a double cantilever down-pressing multi-wire cutting machine, characterized in that it comprises a cutting assembly and a support, the cutting assembly comprises a back plate, the front surface of the back plate is provided with a plurality of main guide wheels, the central shaft of the main guide wheels is perpendicular to the back plate, and one end of the main guide wheels is rotatably connected to the back plate to form a cantilever structure, and the diamond wire is wound around the main guide wheels to form a cutting net surface, two wire winding and unwinding systems for connecting the two ends of the diamond wire and a rotating device for driving the rotation of the main guide wheels are installed on the back plate, one of the wire winding and unwinding systems is used for feeding the wire to the corresponding main guide wheel, and the other wire winding and unwinding system is used for continuously winding the wire, the cutting assembly is installed on one side of the support, the back surface of the back plate is slidably connected to the support, so that the cutting assembly also forms a cantilever connection structure relative to the support, and a lifting device for driving the lifting movement of the cutting assembly is further arranged on the support.

[0007] The present application is achieved by the following technical scheme: a double cantilever down-pressing multi-wire cutting machine, characterized in that it comprises a cutting assembly and a support, the cutting assembly comprises a back plate, the front surface of the back plate is provided with a plurality of main guide wheels, the central shaft of the main guide wheels is perpendicular to the back plate, and one end of the main guide wheels is rotatably connected to the back plate to form a cantilever structure, and the diamond wire is wound around the main guide wheels to form a cutting net surface, two wire winding and unwinding systems for connecting the two ends of the diamond wire and a rotating device for driving the rotation of the main guide wheels are installed on the back plate, one of the wire winding and unwinding systems is used for feeding the wire to the corresponding main guide wheel, and the other wire winding and unwinding system is used for continuously winding the wire, the cutting assembly is installed on one side of the support, the back surface of the back plate is slidably connected to the support, so that the cutting assembly also forms a cantilever connection structure relative to the support, and a lifting device for driving the lifting movement of the cutting assembly is further arranged on the support.

[0008] As a further improvement, the two wire winding and unwinding systems and the rotating device are installed on the back surface of the back plate.

[0009] The present application is achieved by the following technical scheme: a double cantilever down-pressing multi-wire cutting machine, characterized in that it comprises a cutting assembly and a support, the cutting assembly comprises a back plate, the front surface of the back plate is provided with a plurality of main guide wheels, the central shaft of the main guide wheels is perpendicular to the back plate, and one end of the main guide wheels is rotatably connected to the back plate to form a cantilever structure, and the diamond wire is wound around the main guide wheels to form a cutting net surface, two wire winding and unwinding systems for connecting the two ends of the diamond wire and a rotating device for driving the rotation of the main guide wheels are installed on the back plate, one of the wire winding and unwinding systems is used for feeding the wire to the corresponding main guide wheel, and the other wire winding and unwinding system is used for continuously winding the wire, the cutting assembly is installed on one side of the support, the back surface of the back plate is slidably connected to the support, so that the cutting assembly also forms a cantilever connection structure relative to the support, and a lifting device for driving the lifting movement of the cutting assembly is further arranged on the support.

[0010] As a further improvement, the main guide wheel comprises a hollow guide wheel body, a plurality of wire grooves for installing the diamond wire are arranged on the surface of the guide wheel body, and a ring-shaped ring is arranged at the middle position inside the guide wheel body and protrudes towards the central axis line direction, the two ends of the ring-shaped ring in the axial direction are respectively provided with hollow cavities communicated to the outside of the ports of the guide wheel body; the rotating device comprises a driving motor and a bearing box, part of the shell of the bearing box is hidden in one of the hollow cavities, one end of the main shaft of the bearing box is fixed coaxially with the middle part of the ring-shaped ring, and the driving motor is connected to the other end of the main shaft of the bearing box and drives it to rotate.

[0011] The middle part of the guide wheel body is a part that is easy to deform because the guide wheel is used to wind the diamond wire. The annular ring provided in the middle part of the guide wheel body plays a reinforcing role. The two sides of the guide wheel body are provided with hollow cavities, which can reduce the weight of the guide wheel and thus reduce the inertia. One of the hollow cavities can accommodate part of the bearing box, and the bearing box is embedded into the guide wheel. In this way, water and dust can be prevented, and the annular ring also plays a role of connecting the bearing box. The center of gravity of the guide wheel is closer to the support point of the main shaft of the bearing box, which is more stable during high-speed rotation, has smaller jumping, and further enhances the stability of the cantilever structure.

[0012] As a further improvement, the number of the guide wheels is four, two of which are located directly above the other two, and the two lower guide wheels are parallel to each other, and the two upper guide wheels are also parallel to each other.

[0013] Four guide wheels arranged in a square shape are adopted, and the diamond wire forms a square cutting chamber on the four guide wheels. The shape of the cutting chamber corresponds to the shape of the stone, so that the cutting depth of the cutting chamber can be maximized.

[0014] As a preferred mode, the diamond wire is fed from one end of the take-up and pay-off system, and is wound around one guide wheel on the upper layer in one direction, then passes through another guide wheel on the upper layer, and is wound down to one guide wheel on the lower layer and another guide wheel below. In this way, the diamond wire is repeatedly wound around the guide wheels on the upper layer and the guide wheels on the lower layer, and is finally fed out from one guide wheel on the upper layer and connected to the other end of the take-up and pay-off system. The diamond wire between the two guide wheels on the lower layer is the cutting net surface.

[0015] The cutting assembly adopts an upper feeding and upper feeding mode, in which the diamond wire passes through the guide wheels on the upper layer before entering the guide wheels on the lower layer. The upper guide wheels play a buffering role, and the diamond wire does not directly participate in cutting after being fed out from the take-up and pay-off system. In this way, the diamond wire has less fluctuation and is less likely to break. Moreover, the dust and water vapor generated during the cutting process of the diamond wire and the stone are less likely to be brought into the take-up and pay-off system.

[0016] As a further improvement, the take-up and pay-off system includes a take-up and pay-off device, a wire arranging device, and a tension control device mounted on a back plate. The take-up and pay-off device includes a take-up and pay-off wheel rotating around the vertical direction of the back plate and a take-up and pay-off driving part for driving the take-up and pay-off wheel to rotate.

[0017] The wire arranging device includes a wire arranging wheel arranged beside the take-up and pay-off wheel and rotating around the vertical direction of the back plate, and a wire arranging driving part for driving the wire arranging wheel to move horizontally.

[0018] The tension control device includes a tension wheel arranged beside the wire arranging wheel and rotating around the vertical direction of the back plate, and a tension adjusting part for driving the tension wheel to swing circumferentially.

[0019] The back plate is further provided with two wire guiding devices located at the left and right sides of the cutting chamber formed by the four main guide wheels, the wire guiding device comprises an in-out wire wheel with a rotation axis perpendicular to the main guide wheel and inclined to the horizontal direction, and the back plate is further provided with a reversing wheel located between the in-out wire wheel and the tension wheel and rotating around the vertical direction, one end of the diamond wire is connected to the take-up reel, and sequentially passes through the wire arranging wheel, the tension wheel, the reversing wheel and the in-out wire wheel and is connected to the corresponding main guide wheel.

[0020] The motor components such as the wire arranging driving component, the take-up driving component and the tension adjusting component are hidden behind the back plate and are not easily affected by dust and water vapor.

[0021] As a preferred mode, the wire outlet point A of the wire arranging wheel, the wire inlet point B of the tension wheel, the wire outlet point C of the tension wheel and the wire inlet point D of the reversing wheel are coplanar, the wire inlet point of the reversing wheel, the wire outlet point E of the reversing wheel and the wire inlet point F of the in-out wire wheel are coplanar, the line connecting the wire outlet point E of the reversing wheel and the wire inlet point F of the in-out wire wheel is parallel to the axis of the main guide wheel, and the line connecting the wire outlet point G of the in-out wire wheel and the wire inlet point of the corresponding main guide wheel is perpendicular to the axis of the corresponding main guide wheel.

[0022] As a preferred mode, the wire guiding device further comprises a fixed rod mounted on the front surface of the back plate and located at the side of the corresponding main guide wheel and extending along the vertical direction of the back plate, and the in-out wire wheel slides along the axial direction on the fixed rod.

[0023] The position of the in-out wire wheel can be adjusted to adapt to the cutting of stone materials of different sizes.

[0024] As a preferred mode, the support comprises two vertically arranged columns, the upper ends of the two columns are connected together by a horizontal rod, the cutting assembly is located between the two columns, and the left and right sides of the back plate are respectively connected to the two columns by the sliding rail and sliding block device to form a sliding connection, so that the take-up system and the rotating device are located between the two columns.

[0025] As a further improvement, the back plate is further connected to a counterweight located at the rear side of the support.

[0026] Compared with the prior art, the present application has the following advantages:

[0027] 1. The double cantilever downward pressing type multi-wire cutting machine of the present application sets the main guide wheel as a cantilever structure, so that one end of the main guide wheel is a free end and is not connected to the frame, so that the stone material can be continuously cut without being limited by the length of the stone material.

[0028] 2. The back plate is provided with two take-up and pay-off systems, the working conditions of the two take-up and pay-off systems can be observed at the same time, the maintenance and debugging of the take-up and pay-off systems are facilitated, the back plate can isolate the main guide wheel from the take-up and pay-off system, dust and water mist generated by the main guide wheel in the cutting movement cannot easily invade the take-up and pay-off system, the cutting assembly forms a cantilever structure relative to the support, and the back plate is close to the support, so that the rotating device on the back plate and the take-up and pay-off system can play the role of counterweight for the rack, the overall stress of the cutting assembly is biased to the support, and the stability of the cutting assembly is improved.

[0029] 3. The ring is arranged in the middle of the guide wheel body, and the ring plays the role of reinforcement. Hollow cavities are arranged on the two sides of the guide wheel body, the weight of the main guide wheel is reduced, and the inertia is reduced. One of the hollow cavities can accommodate part of the bearing box, the bearing box is embedded in the main guide wheel, so that water and dust can be prevented, the ring also plays the role of connecting the bearing box, the center of gravity of the main guide wheel is closer to the support point of the main shaft of the bearing box, the main guide wheel is more stable when rotating at high speed, and the jumping is smaller, and the stability of the cantilever structure is further improved.

[0030] 4. In the application, the motor components such as the wire arranging driving part, the take-up and pay-off driving part and the tension adjusting part are hidden behind the back plate, and are not easily affected by dust and water vapor. The cutting assembly adopts four small guide wheels for wiring (wire arranging wheels, tension adjusting wheels, reversing wheels and in-out wire wheels), so that the number of parts is small, the failure rate is low, the wiring distance is as short as possible, and the risk of diamond wire abrasion and breakage is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 The drawings are structural schematic diagrams of specific embodiments of the application.

[0032] Figure 2 The drawings are structural schematic diagrams of specific embodiments of the application. Figure 1 ;

[0033] Figure 3 The drawings are structural schematic diagrams of specific embodiments of the application. Figure 2 ;

[0034] Figure 4 The drawings are structural schematic diagrams of specific embodiments of the application.

[0035] Figure 5 The drawings are structural schematic diagrams of specific embodiments of the application.

[0036] Figure 6 The drawings are structural schematic diagrams of specific embodiments of the application.

[0037] Figure 7A schematic diagram of the cutting component in a specific embodiment of the present invention.

[0038] Labeling Explanation: 1. Backplate; 2. Main Guide Wheel; 21. Guide Wheel Body; 22. Annular Ring; 23. Hollow Cavity; 3. Take-up and Release System; 31. Take-up and Release Device; 311. Take-up and Release Wheel; 312. Take-up and Release Drive Component; 32. Cable Laying Device; 321. Cable Laying Wheel; 322. Cable Laying Drive Component; 33. Tension Control Device; 331. Tension Wheel; 332. Tension Adjustment Component; 34. Reversing Wheel; 4. Bracket; 41. Column; 42. Crossbar; 5. Cable Laying Device; 51. Inlet and Outlet Wheels; 52. Fixing Rod; 6. Rotating Device; 61. Bearing Box; 62. Drive Motor; 7. Lifting Device; 8. Diamond Wire; 9. Stone Material; 10. Counterweight. Detailed Implementation

[0039] The present invention will now be described in detail with reference to the accompanying drawings:

[0040] This embodiment relates to a double-cantilever down-pressing multi-wire cutting machine, such as... Figures 1-7 As shown, the device includes a cutting assembly and a support 4. The cutting assembly includes a back plate 1, with multiple guide wheels 2 mounted on the front of the back plate 1. The central axis of each guide wheel 2 is perpendicular to the back plate 1, and one end of each guide wheel 2 is rotatably connected to the back plate 1, forming a cantilever structure. Diamond wire 8 is wound around each guide wheel to form a cutting mesh. Two take-up and release systems 3 for connecting the two ends of the diamond wire 8, and a rotating device 6 for driving the guide wheels 2, are mounted on the back plate 1. One take-up and release system 3 is used to feed wire to the corresponding guide wheel 2, and the other take-up and release system 3 is used for continuous take-up. The cutting assembly is mounted on one side of the support 4, and the back of the back plate 1 is slidably connected to the support 4, so that the cutting assembly also forms a cantilever connection structure with respect to the support 4. The support 4 is also equipped with a lifting device 7 for driving the cutting assembly to move up and down. The lifting device 7 can be a screw lifting device or a hydraulic cylinder, etc.

[0041] Since the main guide wheel 2 is also set as a cantilever structure, one end of the main guide wheel 2 is a free end and is not connected to the frame, so the stone 9 can be cut continuously without being limited by the length of the stone 9.

[0042] As a further improvement, such as Figure 3 As shown, two take-up and take-down systems 3 and a rotating device 6 are mounted on the back of the back plate 1.

[0043] Two wire winding systems 3 are installed on the back plate 1, and the working conditions of the two wire winding systems 3 can be observed simultaneously, which facilitates the maintenance and debugging of the wire winding systems 3. The back plate 1 can isolate the main guide wheels 2 from the wire winding systems 3, so that the dust and water mist generated by the main guide wheels 2 during the cutting movement cannot easily enter the wire winding systems 3. In addition, the cutting assembly forms a cantilever structure relative to the support 4, and the back plate 1 is close to the support 4, so that the rotating device 6 and the wire winding system 3 on the back plate 1 can act as counterweights for the rack, so that the overall stress of the cutting assembly is biased towards the support 4, thereby improving the stability of the cutting assembly.

[0044] As a further improvement, as shown in Figures 5-6 The main guide wheel 2 includes a hollow guide wheel body 21, a plurality of wire grooves for installing the diamond wire 8 are arranged on the surface of the guide wheel body 21, and a ring 22 protruding towards the center axis direction is arranged at the middle position inside the guide wheel body 21. The two ends of the ring 22 are respectively provided with a hollow cavity 23 connected to the port of the guide wheel body 21. The rotating device 6 includes a driving motor 62 and a bearing box 61. The outer shell of the bearing box 61 is partially hidden in one of the hollow cavities 23, and one end of the main shaft of the bearing box 61 is coaxially fixed with the middle part of the ring 22. The driving motor 62 is connected to the other end of the main shaft of the bearing box 61 and drives it to rotate.

[0045] Since the main guide wheel 2 is used to wind the diamond wire 8, the middle part of the guide wheel body 21 is a deformation prone part. By arranging the ring 22 at the middle part of the guide wheel body 21, the strength is enhanced. In addition, the two sides of the guide wheel body 21 are provided with hollow cavities 23, which can reduce the weight of the main guide wheel 2, thereby reducing the inertia. One of the hollow cavities 23 can accommodate part of the bearing box 61, and the bearing box 61 is embedded inside the main guide wheel 2, which can prevent water and dust, and the ring 22 also serves as a connection for the bearing box 61, so that the center of gravity of the main guide wheel 2 is closer to the support point of the main shaft of the bearing box 61, which is more stable during high-speed rotation, has smaller jumping, and further enhances the stability of the cantilever structure.

[0046] As a further improvement, as shown in Figures 1-2 , 7, the number of main guide wheels 2 is four, two of which are located directly above the other two, and the two lower main guide wheels 2 are flush, and the two upper main guide wheels 2 are also flush.

[0047] Four square-shaped main guide wheels 2 are adopted, and the diamond wire 8 forms a square-shaped cutting chamber on the four main guide wheels 2. The shape of the cutting chamber corresponds to the shape of the stone 9, so that the cutting depth of the cutting chamber can be maximized.

[0048] As a preferred mode, the diamond wire 8 is sent out from the wire feeding and releasing system 3 at one end, and is first fed into one of the upper layer's main guide wheels 2, then passes through the other upper layer's main guide wheel 2, and is wound down to one of the lower layer's main guide wheels 2 and the other lower layer's main guide wheel 2, and so on, until it is finally fed out from one of the upper layer's main guide wheels 2 and connected to the wire feeding and releasing system 3 at the other end, and the diamond wire 8 between the two lower layer's main guide wheels 2 forms the cutting net.

[0049] The cutting assembly adopts the form of upper wire feeding and upper wire feeding, wherein the diamond wire 8 passes through the upper layer's main guide wheel 2 before entering the lower layer's main guide wheel 2, wherein the upper layer's main guide wheel 2 acts as a buffer, and the diamond wire 8 does not directly participate in cutting after being fed out from the wire feeding and releasing system 3, so that the diamond wire 8 has less fluctuation and is less likely to break, and the dust and water vapor generated during the cutting process of the diamond wire 8 and the stone 9 are not easily brought into the wire feeding and releasing system 3 by the diamond wire 8.

[0050] As a further improvement, as shown in Figures 3-4 The wire feeding and releasing system 3 includes a wire feeding and releasing device 31, a wire arranging device 32 and a tension control device 33 mounted on the back plate 1, the wire feeding and releasing device 31 includes a wire feeding and releasing wheel 311 rotating around the vertical direction of the back plate 1 and a wire feeding and releasing driving part 312 for driving the wire feeding and releasing wheel 311 to rotate;

[0051] The wire arranging device 32 includes a wire arranging wheel 321 arranged beside the wire feeding and releasing wheel 311 and rotating around the vertical direction of the back plate 1, and a wire arranging driving part 322 for driving the wire arranging wheel 321 to move horizontally;

[0052] The tension control device 33 includes a tension wheel 331 arranged beside the wire arranging wheel 321 and rotating around the vertical direction of the back plate 1, and a tension adjusting part 332 for driving the tension wheel 331 to swing circumferentially;

[0053] The back plate 1 is further provided with two wire guiding devices 5 located on the left and right sides of the cutting chamber formed by the diamond wire 8 around the four main guide wheels 2, the wire guiding device 5 includes an entry and exit wire wheel 51 with its rotation axis perpendicular to the main guide wheel (2) and inclined to the horizontal direction, and a reversing wheel 34 arranged between the entry and exit wire wheel 51 and the tension wheel 331 and rotating around the vertical direction, one end of the diamond wire 8 is connected to the wire feeding and releasing wheel 311, and passes through the wire arranging wheel 321, the tension wheel 331, the reversing wheel 34 and the entry and exit wire wheel 51 in turn, and is connected to the corresponding main guide wheel 2.

[0054] Wherein the wire drive component 322, pay-off drive component 312 and tension adjustment component 332 and other motor components are hidden in the back of the back plate 1, not easy to be affected by dust and moisture. Moreover, the cutting assembly adopts four small guide wheels for wiring (wire winding wheel 321, tension wheel 331, reversing wheel 34 and in-out wire wheel 51), so that the number of parts is less, the failure rate is low, and the wiring distance can be made as short as possible, which can reduce the risk of diamond wire 8 wear and breakage.

[0055] As a preferred mode, as shown in Figure 4 The wire outlet point A of the wire winding wheel, the wire inlet point B of the tension wheel, the wire outlet point C of the tension wheel and the wire inlet point D of the reversing wheel are coplanar, and the wire inlet point of the reversing wheel, the wire outlet point E of the reversing wheel and the wire inlet point F of the in-out wire wheel are coplanar, and the line connecting the wire outlet point E of the reversing wheel and the wire inlet point F of the in-out wire wheel is parallel to the axis of the main guide wheel 2, and the line connecting the wire outlet point G of the in-out wire wheel and the wire inlet point of the corresponding main guide wheel is perpendicular to the axis of the corresponding main guide wheel 2.

[0056] As a preferred mode, as shown in Figure 4 The wire winding wheel 321, the tension wheel 331, the reversing wheel 34 and the in-out wire wheel 51 are arranged in the back plate 1, and the wire winding wheel 321, the tension wheel 331, the reversing wheel 34 and the in-out wire wheel 51 are arranged in the back plate 1.

[0057] Wherein the in-out wire wheel 51 can be slidingly adjusted in position to adapt to different sizes of stone 9 cutting.

[0058] As a preferred mode, as shown in Figure 1 The support 4 includes two vertically arranged columns 41, and the upper ends of the two columns 41 are connected together by a horizontal rod 42, and the cutting assembly is located between the two columns 41, and the left and right sides of the back plate 1 are respectively connected with the two columns 41 through the sliding rail sliding block device to form a sliding connection, so that the take-up and pay-off system 3 and the rotating device 6 are located between the two columns 41.

[0059] Wherein the axial length of the main guide wheel is 100-800mm. Since the main guide wheel is a cantilever structure, the main guide wheel cannot be too long, otherwise the stability will be poor.

[0060] As a further improvement, the back plate 1 is further connected with a counterweight 10 located at the rear side of the support 4, and the counterweight can increase the stability of the cutting machine.

[0061] The working process of the embodiment is as follows:

[0062] The stone 9 is transported along the conveying line to the bottom of the cutting assembly, the lifting device 7 continuously drives the cutting assembly to move down relative to the support 4, the four main guide wheels 2 of the cutting assembly are repeatedly rotated in the same direction and the opposite direction under the drive of the respective rotating device 6, and the diamond wire 8 repeatedly cuts and saws the stone 9 in the cutting net surface formed between the two lower main guide wheels 2, until the stone 9 is cut completely. During the working process of the cutting assembly, the wire feeding system at one end is used for feeding the wire, continuously providing new diamond wire 8 to the main guide wheel 2, and the wire feeding and collecting system 3 at the other end continuously collects the broken diamond wire 8 into a roll.

[0063] After the cutting chamber continuously cuts down to the bottom of the stone 9, the cutting assembly moves up, the stone 9 continuously feeds, and the cutting assembly can cut again, so that the continuous cutting action is realized.

[0064] Although the present application is illustrated and described with specific embodiments and alternatives, it is understood that various changes and modifications can be made without departing from the spirit of the present application. Therefore, it should be understood that the present application is not limited in any sense except by the appended claims and their equivalents.

Claims

1. A double cantilever down-pressing multi-wire saw, characterized by: The application relates to a cutting assembly and a support (4), wherein the cutting assembly comprises a back plate (1), the front surface of the back plate (1) is provided with a plurality of main guide wheels (2), the central shafts of the main guide wheels (2) are perpendicular to the back plate (1), one end of each main guide wheel (2) is rotationally connected with the back plate (1), the one end of each main guide wheel is a free end, thus forming a cantilever structure, and a diamond wire (8) is arranged on each main guide wheel to form a cutting net surface, two wire winding and unwinding systems (3) for connecting two ends of the diamond wire (8) respectively and a rotating device (6) for driving the main guide wheels (2) to rotate are arranged on the back plate (1), one of the two wire winding and unwinding systems (3) is used for feeding the diamond wire (8) to the corresponding main guide wheel (2), and the other wire winding and unwinding system (3) is used for continuously winding the diamond wire (8), the cutting assembly is arranged on one side of the support (4), the back surface of the back plate (1) is slidably connected with the support (4), so that the cutting assembly also forms a cantilever connection structure relative to the support (4), and a lifting device (7) for driving the cutting assembly to move up and down is further arranged on the support (4); The two wire winding and unwinding systems (3) and the rotating device (6) are arranged on the back surface of the back plate (1); the two wire winding and unwinding systems (3) are arranged on the left and right sides of the back surface of the back plate (1) respectively, and the wire winding and unwinding systems (3) are located between the upper and lower rotating devices (6); The wire winding and unwinding system (3) comprises a wire winding and unwinding device (31), a wire arranging device (32) and a tension control device (33) arranged on the back plate (1), the wire winding and unwinding device (31) comprises a wire winding and unwinding wheel (311) rotating around the direction perpendicular to the back plate (1) and a wire winding and unwinding driving part (312) for driving the wire winding and unwinding wheel (311) to rotate; The wire arranging device (32) comprises a wire arranging wheel (321) arranged beside the wire winding and unwinding wheel (311) and rotating around the direction perpendicular to the back plate (1) and a wire arranging driving part (322) for driving the wire arranging wheel (321) to move horizontally; The tension control device (33) comprises a tension wheel (331) arranged beside the wire arranging wheel (321) and rotating around the direction perpendicular to the back plate (1) and a tension adjusting part (332) for driving the tension wheel (331) to swing circumferentially; The back plate (1) is further provided with two wire arranging devices (5) located on the left and right sides of the cutting chamber surrounded by the diamond wire (8) on the four main guide wheels (2), the wire arranging device (5) comprises an in-out wire wheel (51) rotating around an axis perpendicular to the main guide wheels (2) and inclined to the horizontal direction, a reversing wheel (34) rotating around the vertical direction is further arranged on the back plate (1) between the in-out wire wheel (51) and the tension wheel (331), one end of the diamond wire (8) is connected with the wire winding and unwinding wheel (311) and sequentially passes through the wire arranging wheel (321), the tension wheel (331), the reversing wheel (34) and the in-out wire wheel (51) and is connected with the corresponding main guide wheel (2). The wire outlet point A of the wire arranging wheel, the wire inlet point B of the tension wheel, the wire outlet point C of the tension wheel and the wire inlet point D of the reversing wheel are coplanar, the wire inlet point of the reversing wheel, the wire outlet point E of the reversing wheel and the wire inlet point F of the wire inlet and outlet wheel are coplanar, the line connecting the wire outlet point E of the reversing wheel and the wire inlet point F of the wire inlet and outlet wheel is parallel to the axis of the main guide wheel (2), and the line connecting the wire outlet point G of the wire inlet and outlet wheel and the wire inlet point of the corresponding main guide wheel is perpendicular to the axis of the corresponding main guide wheel (2).

2. The dual cantilever downfeed multi-wire saw according to claim 1, characterized in that: The main guide wheel (2) comprises a hollow guide wheel body (21), a plurality of wire grooves for mounting the diamond wire (8) are arranged on the surface of the guide wheel body (21), and a ring-shaped ring (22) protruding towards the direction close to the central axis is arranged at the middle position inside the guide wheel body (21), and hollow cavities (23) communicating to the outside of the ports of the guide wheel body (21) are arranged at the two ends of the ring-shaped ring (22) in the axial direction; the rotating device (6) comprises a driving motor (62) and a bearing box (61), part of the shell of the bearing box (61) is hidden in one of the hollow cavities (23), one end of the main shaft of the bearing box (61) is coaxially fixed with the middle part of the ring-shaped ring (22), and the driving motor (62) is connected to the other end of the main shaft of the bearing box (61) and drives it to rotate.

3. The dual cantilever downfeed multi-wire saw according to claim 1, wherein: The number of the main guide wheels (2) is four, two of which are located directly above the other two, the two main guide wheels (2) in the lower layer are parallel to each other, and the two main guide wheels (2) in the upper layer are also parallel to each other.

4. The dual cantilever downfeed multi-wire saw according to claim 1, wherein: The wire arranging device (5) comprises a fixed rod (52) also mounted on the front surface of the back plate (1) and located on the side of the corresponding main guide wheel (2) and extending in the direction perpendicular to the back plate (1), and the wire inlet and outlet wheel (51) slides and adjusts on the fixed rod (52) in the axial direction.

5. The dual cantilever downfeed multi-wire saw according to claim 1, wherein: The support (4) comprises two vertically arranged columns (41), the upper ends of the two columns (41) are connected together by a cross bar (42), the cutting assembly is located between the two columns (41), and the left and right sides of the back plate (1) are respectively connected to the two columns (41) by the slide rail and slide block device to form a sliding connection, so that the take-up and pay-off system (3) and the rotating device (6) are located between the two columns (41).

6. The dual cantilever downfeed multi-wire saw according to claim 1, wherein: The back plate (1) is further connected with a counterweight (10) located on the rear side of the support (4).

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