CN111823424A

CN111823424A - Brittle and hard material cutting method and device

Info

Publication number: CN111823424A
Application number: CN202010773564.4A
Authority: CN
Inventors: 李海威; 林冬; 梁兴华; 吴超; 林光展; 刘林炎; 苏宇华; 林剑煌; 林桂峰
Original assignee: Fuzhou Tianrui Scroll Saw Technology Co Ltd
Current assignee: Fuzhou Tianrui Scroll Saw Technology Co Ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2020-10-27

Abstract

The invention relates to the field of processing of brittle and hard materials, and discloses a method and a device for cutting a brittle and hard material, wherein the brittle and hard material is fixed; the cutting mechanism is provided with more than two cutting lines which are parallel to each other, and the cutting mechanism is adjusted to enable the plane where the cutting lines are located to be parallel to the cutting feeding direction or enable the projection plane of the cutting lines along the cutting feeding direction to be spaced by a preset distance; and cutting the brittle and hard material, wherein during cutting, more than two cutting lines are positioned in the same cutting groove on the brittle and hard material, or each cutting line is respectively positioned in different cutting grooves of the brittle and hard material. According to the technical scheme, the cutting of the brittle and hard material is flexible and efficient, single-line cutting can be performed, multi-line simultaneous cutting can also be performed, and the cutting efficiency of the brittle and hard material is greatly improved.

Description

Brittle and hard material cutting method and device

Technical Field

The invention relates to the field of processing of brittle and hard materials, in particular to a method and a device for cutting a brittle and hard material.

Background

At present, diamond is mainly used for cutting and cutting brittle and hard materials such as stone, silicon crystal and the like. The wire saw is provided with a plurality of cutting guide wheels to form a cutting wheel system, the diamond wires are of an annular cutting wire structure with a closed head and tail, the diamond wires are distributed in guide wheel grooves of the cutting wheel system, and the cutting wheel system rotates to drive the diamond wires to do linear motion. The cutting action is generally only carried out in diamond wire lower half section, and the middle part of train is for avoiding train and material spindle to produce the interference, and the cutting train is fed by the linear motion module drive of installing in the frame usually to the realization cutting.

Patent application No. CN201780048352.6 discloses a method for slicing a silicon ingot, a method for manufacturing a silicon wafer, and its specification, paragraph 0062 discloses "next, in step S2, the obtained silicon ingot is subjected to an outer periphery grinding treatment to make the diameter uniform, and then the silicon ingot is sliced by the above-mentioned method for slicing a silicon ingot according to the present invention to a thickness of about 1mm to obtain a silicon wafer. "and 0065 discloses," then, in step S4, the obtained silicon wafer is transported to a polishing apparatus, and a polishing process is performed on the silicon wafer using an alumina polishing slurry or the like. "

In CN201280045340.5, the specification 0079 discloses that "as described above, in the present invention, local thinning of the starting cut portion of the workpiece can be suppressed particularly on the wire-collecting side where the pitch of the grooves is narrow, and the TTV can be improved, and therefore, the machining allowance in the subsequent steps such as the polishing and the lapping can be made small".

In the prior art, the wire saw cutting of diamond wires and the like mostly adopts single-wire cutting (namely, only one cutting is performed in one reciprocating cutting stroke), so that the cutting efficiency of brittle and hard materials is low. Even if some multi-wire cutting devices appear in the prior art and multi-wire cutting can be carried out in one cutting stroke, the existing multi-wire cutting device is complex in structure, high in manufacturing cost and complex in operation.

Disclosure of Invention

Therefore, a brittle and hard material cutting method needs to be provided for solving the technical problem that the brittle and hard material in the prior art is low in machining efficiency.

In order to achieve the purpose, the method for cutting the brittle and hard material comprises the following steps:

fixing the brittle and hard material;

the cutting mechanism is provided with more than two cutting lines which are parallel to each other, and the cutting mechanism is adjusted to enable the plane where the cutting lines are located to be parallel to the cutting feeding direction or enable the projection plane of the cutting lines along the cutting feeding direction to be spaced by a preset distance;

and controlling the cutting mechanism or the brittle and hard material to move along the cutting feeding direction to cut the brittle and hard material, wherein during cutting, more than two cutting lines are positioned in the same cutting groove on the brittle and hard material, or each cutting line is respectively positioned in different cutting grooves of the brittle and hard material.

Further, the adjusting the cutting mechanism to enable the projection plane of the cutting line along the cutting feeding direction to be spaced by a preset distance includes:

adjusting the inclination angle of the cutting mechanism to enable the plane where more than two cutting lines are located to form a preset included angle with the cutting feeding direction, so that the projection plane of the cutting lines along the cutting feeding direction is spaced by a preset distance; or

The cutting mechanism comprises an installation support, the cutting lines are arranged on the installation support, and the inclination angle of the installation support is adjusted to enable the plane where the two or more cutting lines are located and the cutting feeding direction to form a preset included angle, so that the cutting lines are enabled to be along the preset distance of the projection plane of the cutting feeding direction at intervals.

Further, the distance between the cutting lines along the plane where the two or more cutting lines are located is 50-1000mm, and the range of the preset included angle is 0-90 degrees.

and a jacking wheel is adopted to jack at least one cutting line, so that the cutting lines move in parallel along the preset direction, and the projection plane of the cutting lines along the cutting feeding direction is spaced by a preset distance.

Further, the range of the preset distance is 2cm-50 cm.

Further, the cutting mechanism is driven by a linear motion mechanism to move along the cutting feeding direction, or the brittle and hard material is driven by the linear motion mechanism to move along the cutting feeding direction, and the brittle and hard material is stone, crystal silicon or concrete.

In order to solve the above technical problem, the present invention further provides another technical solution:

a brittle-hard material cutting apparatus comprising:

the clamping mechanism is used for fixing the brittle and hard material, and the brittle and hard material is any one of stone, crystal silicon or concrete;

the cutting mechanism comprises more than two cutting lines which are parallel to each other, the plane of the cutting lines is parallel to the cutting feeding direction, or the projection plane of the cutting lines along the cutting feeding direction has a preset distance;

the linear motion mechanism is connected with the cutting mechanism or the clamping mechanism and used for controlling the cutting mechanism or the clamping mechanism to move along the cutting feeding direction to cut the brittle and hard material, and during cutting, more than two cutting lines are positioned in the same cutting groove on the brittle and hard material, or each cutting line is positioned in different cutting grooves of the brittle and hard material.

Furthermore, the cutting mechanism further comprises an adjusting mechanism, the adjusting mechanism is used for adjusting the preset distance of the cutting line, and the adjusting mechanism comprises a rotary adjusting mechanism or a top pressure type adjusting mechanism.

Furthermore, the rotary adjusting mechanism is connected with the mounting bracket of the cutting line and is used for adjusting a preset included angle between the mounting bracket and the cutting feeding direction, so that the preset distance is adjustable;

the rotary adjusting mechanism comprises an installation support, a sliding rail and a sliding block, the cutting line is installed on the installation support through a cutting guide wheel, and the top of the installation support is movably connected with the sliding support through a hinge structure, so that the installation support can adjust an included angle with the vertical direction around the hinge structure.

Furthermore, the distance between the cutting lines is 50-1000mm, the range of the preset included angle is 1-20 degrees, the adjusting mechanism comprises a top pressing type adjusting mechanism, the top pressing type adjusting mechanism comprises a top pressing wheel, and the top pressing wheel is used for pressing the cutting lines to enable the preset distance to be adjustable;

the cutting mechanism comprises a cutting wheel train with a plurality of cutting guide wheels, the cutting line is arranged on the cutting guide wheels, and the distance between at least two cutting guide wheels in the plurality of cutting guide wheels is adjustable.

Different from the prior art, the technical scheme includes that the cutting lines are parallel to each other, a plane where the cutting lines are located is parallel to a cutting feeding direction, or the cutting lines are spaced at a preset distance along a projection plane of the cutting feeding direction, so that when cutting is performed, more than two cutting lines are located in the same cutting groove on the brittle and hard material, or each cutting line is located in different cutting grooves of the brittle and hard material. Therefore, the cutting method for the brittle and hard material is flexible and efficient in cutting, single-line cutting can be carried out, and multi-line simultaneous cutting can also be carried out, so that the cutting efficiency of the brittle and hard material is greatly improved.

Furthermore, the technical scheme can also adjust the cutting mechanism, so that the distance between the projection surfaces of the cutting lines along the cutting feeding direction can be adjusted, and the cutting width of the brittle and hard material can be adjusted.

Furthermore, the adjusting mechanism comprises a rotary adjusting mechanism or a top-pressing type adjusting mechanism, and is simple in structure, convenient to adjust and operate and low in manufacturing cost.

Furthermore, the distance between the cutting guide wheels of the cutting line in the technical scheme is adjustable, the requirement for cutting large-specification brittle and hard materials can be met, the compact structure of cutting equipment can be ensured, and the manufacturing cost is reduced.

Drawings

FIG. 1 is a schematic structural view of a cutting line according to an embodiment;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic view of an embodiment of the cutting line during cutting;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 1 after adjustment of cutting line one and cutting line two;

FIG. 5 is a schematic diagram of the first cutting line and the second cutting line after adjustment of the first cutting line and the second cutting line according to the embodiment;

FIG. 6 is a flowchart illustrating steps of a method for cutting brittle-hard material according to an embodiment;

FIG. 7 is a schematic perspective view of a rotary adjustment mechanism according to an embodiment;

FIG. 8 is a side view of FIG. 7;

fig. 9 is a schematic perspective view of the top pressure adjusting mechanism according to the embodiment;

FIG. 10 is a side view of FIG. 9;

description of reference numerals:

11. cutting a first line;

12. cutting a line II;

2. a brittle and hard material;

21. cutting the first groove;

22. cutting a second groove;

3. cutting guide wheels;

31. a pressing wheel is pressed;

32. mounting a bracket;

321. a hinge structure;

322. a fixed structure;

33. a sliding support;

34. a slide rail;

341. a slider;

100. a frame;

theta, the included angle of the plane where the cutting line is located relative to the cutting feeding direction;

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1 to 10, the present embodiment provides a method and an apparatus for cutting a brittle and hard material. Wherein, the brittle and hard material comprises one or more of stone, silicon crystal material, concrete and glass. The cutting method includes, but is not limited to, cutting with the first cutting line 11 and the second cutting line 12, wherein the first cutting line 11 and the second cutting line 12 may be diamond wires, or may be shaped cutting wires made of other high hardness materials. The diameter of the first cutting line 11 and the second cutting line 12 ranges from 0.1 mm to 1.0mm according to the brittle and hard material to be cut. In the cutting method, the brittle material is simultaneously cut by more than two cutting lines, such as the first cutting line 11, the second cutting line 12 and the like, so that the cutting efficiency and the cutting effect are improved. More than two cutting lines, such as the first cutting line 11 and the second cutting line 12, can form a cutting groove at the same position of the brittle and hard material, and the more than two cutting lines can cut in the same cutting groove, or more than two cutting lines can form more than two cutting grooves at different positions of the brittle and hard material, and each cutting line falls in different cutting grooves respectively to cut the brittle and hard material.

As shown in fig. 1, in the embodiment, the cutting mechanism is provided with two or more cutting lines parallel to each other, and the following description will take an example in which the cutting mechanism is provided with a first cutting line 11 and a second cutting line 12. The cutting line comprises a first cutting line 11 and a second cutting line 12, the first cutting line 11 and the second cutting line 12 are linear bodies of the same annular cutting line at different spatial positions, the first cutting line 11 and the second cutting line 12 are arranged on a cutting wheel system, the cutting wheel system comprises a plurality of cutting guide wheels 3, at least one cutting guide wheel 3 is connected to a driving device, the driving device can be a motor, a motor and other rotary power elements, and the driving device drives the first cutting line 11 and the second cutting line 12 to operate through the cutting guide wheels 3 so as to be used for executing a brittle and hard material cutting process.

As shown in fig. 2 to 5, the cutting mechanism is adjustable so that the plane of the cutting line is parallel to the cutting feed direction, or so that the projection plane of the cutting line along the cutting feed direction is spaced by a predetermined distance.

As shown in fig. 2 and 3, the plane of the cutting line 11 and the cutting line 12 is parallel to the cutting feed direction. The first cutting line 11 and the second cutting line 12 are used for cutting the brittle and hard material, the first cutting line 11 is located in front of the cutting feeding direction, and the second cutting line 12 is located behind the cutting feeding direction relative to the first cutting line 11. Specifically, as shown in fig. 1 to 3, the direction indicated by the arrow X in the figures is a cutting feed direction, in the double-line cutting process, the first cutting line 11 and the second cutting line 12 are driven by a linear motion mechanism (i.e., a cutting feed mechanism) and move together along the cutting feed direction indicated by the arrow X, the first cutting line 11 cuts the brittle and hard material 2 to form a first cutting groove 21, and both the second cutting line 12 and the first cutting line are located in the cutting feed direction, so that when the cutting mechanism continues to feed, the second cutting line 12 also enters the first cutting groove 21. In some embodiments, the positions of the first cutting line 11 and the second cutting line 12 are fixed, and the linear motion mechanism is connected to the holding device for the brittle and hard material 2, and is used for driving the holding device and the brittle and hard material 2 thereon to feed the cutting in the direction of the first cutting line 11 and the second cutting line 12 (i.e. the direction opposite to the arrow X in fig. 1). The linear speed interval of the cutting line I11 and the cutting line II 12 during cutting is 15-160m/s, and preferably, the optimal linear speed interval of the cutting line I11 and the cutting line II 12 during cutting is 20-120 m/s.

In the above embodiment, the same cutting position of the brittle and hard material is cut by the first cutting line 11 and the second cutting line 12, so that two times of cutting can be performed by one time of cutting operation, and the second cutting line 12 can perform secondary cutting or polishing on the cutting line mark or burr on the cutting end face formed by the first dense cutting line 11, so that the flatness of the cutting end face is greatly improved, and the cutting end face does not need to be subjected to a polishing or burnishing process after double-line cutting, or the workload of the polishing or burnishing process is greatly reduced.

In the embodiment shown in fig. 1, the first cutting line 11 and the second cutting line 12 are linear bodies of the same circular cutting line at different spatial positions, i.e. the lower half of the circular cutting line in fig. 1 is the first cutting line 11, and the upper half is the second linear body. In other embodiments, the first cutting line 11 and the second cutting line 12 may be single lines, that is, the first cutting line and the second cutting line are respectively formed by independent cutting lines, and the first cutting line and the second cutting line are respectively provided with independent cutting wheel trains and driving devices.

As shown in fig. 4 and 5, the cutting line one 11 and the cutting line 12 are spaced apart from each other by a predetermined distance along a projection plane of the cutting feed direction (i.e., a horizontal direction indicated by an arrow Y in fig. 4 and 5). When the cutting mechanism cuts, the cutting line 1 forms a first cutting groove 21 on the brittle and hard material 2, and the cutting line two 12 forms a second cutting groove 22 on the brittle and hard material 2, so that the brittle and hard material 2 is subjected to multi-line cutting. Therefore, the cutting mechanism can realize more than two cutting operations by one-time cutting reciprocating action, and the cutting efficiency of the brittle and hard material is greatly improved.

The embodiment of the cutting mechanism including three or more cutting lines is similar to the embodiment of the cutting mechanism including only the first cutting line 11 and the second cutting line 12, and a person skilled in the art can implement the embodiment of three or more cutting lines according to the above embodiment, and details are not described here.

As shown in fig. 6, a flowchart of a brittle and hard material cutting method according to an embodiment is provided, where the brittle and hard material cutting method includes the steps of:

s601, fixing the brittle and hard material 2;

s602, adjusting the cutting mechanism to enable the plane where the cutting line is located to be parallel to the cutting feeding direction, or enabling the projection plane of the cutting line along the cutting feeding direction to be spaced by a preset distance;

s603, controlling the cutting mechanism or the brittle and hard material to move along the cutting feeding direction, and cutting the brittle and hard material, wherein during cutting, more than two cutting lines are positioned in the same cutting groove on the brittle and hard material, or each cutting line is respectively positioned in different cutting grooves of the brittle and hard material.

In step S601, the brittle and hard material 2 may be clamped and fixed by an existing clamping device of a wire saw. The position of the cutting line one 11 and the cutting line two 12 in step S602 may be preset before step S601, and the cutting line one 11 is in front of the cutting line two 12 in the cutting feed direction. The first cutting line and the second cutting line can be diamond wires with the diameter of 0.1-1.0, and the distance between the first cutting line 11 and the second cutting line 12 is 50-1000 mm. The cutting length of the first cutting line 11 and the second cutting line 12 is 50-2000mm, namely, the first cutting line 11 and the second cutting line 12 can cut workpieces with the size of 50-2000 mm.

In step S603, the linear speed interval when the first cutting line 11 and the second cutting line 12 cut is 15-160m/S, and the optimal linear speed is 20-120 m/S. In step S603, as shown in fig. 1 to 5, the cutting feed direction (i.e., the direction indicated by the arrow X in the figure) is fed from top to bottom along a vertical direction, that is, the cutting line one 11 and the cutting line two 12 cut the brittle-hard material 2 from top to bottom. In other embodiments, the first cutting line 11 and the second cutting line 12 may be fed in a horizontal direction to cut the brittle and hard material, that is, the brittle and hard material is cut from one end to the other end in the horizontal direction. In addition, a clamping mechanism for fixing the brittle and hard material 2 can be arranged during cutting, and the linear motion mechanism drives the cutting line I and the cutting line to feed in two directions for cutting; or the positions of the first cutting line and the second cutting line are fixedly arranged, and the linear motion mechanism drives the clamping mechanism and the brittle and hard materials on the clamping mechanism to feed in the directions of the first cutting line 11 and the second cutting line 12 for cutting; or the direct movement mechanism drives the cutting line I, the cutting line II and the clamping mechanism to move relatively to cut.

According to the method for cutting the brittle and hard material, the brittle and hard material is cut through the first cutting line and the second cutting line, the second cutting line can carry out secondary cutting or grinding on the cutting end face formed by cutting the first cutting line, and the cutting effect and the cutting efficiency of the brittle and hard material can be greatly improved.

In step S603, the first cutting line 11 and the second cutting line 12 are mounted on the cutting guide wheel 3, and the first cutting line 11 and the second cutting line 12 rotate during cutting, so that the first cutting line 11 and the second cutting line 12 can be uniformly contacted and cut with brittle and hard materials in the circumferential direction, the first cutting line and the second cutting line are uniformly worn, the service life of the cutting line is effectively prolonged, and better economic benefits are achieved.

As shown in fig. 4 and 5, the first cutting line 11 and the second cutting line 12 are spaced apart from each other by a predetermined distance along a projection plane of the cutting feed direction (i.e., a horizontal direction indicated by an arrow Y in fig. 4 and 5).

As shown in fig. 7 to 10, the cutting line one 11 is located in front of the cutting feed direction of the cutting line two 12, a preset distance is arranged between projection planes along the cutting feed direction (i.e. horizontal direction indicated by arrow Y in fig. 4 and 5), and the preset distance between the cutting line one 11 and the projection planes along the cutting feed direction of the cutting line 12 is adjustable, so that the cutting thickness of more than two cutting lines on the brittle and hard material can be adjusted.

As shown in fig. 7 and 8, a rotation adjustment mechanism may be provided in this embodiment to adjust the position of the first cutting line 11 and the second cutting line 12. The rotary adjusting mechanism comprises a mounting bracket 32, a sliding bracket 33, a sliding rail 34 and a sliding block 341, wherein the cutting guide wheels 3 of the cutting line I11 and the cutting line II 12 are mounted on the outer surface of the mounting bracket, the mounting bracket 32 is arranged opposite to the sliding bracket, and the top of the mounting bracket 32 is movably connected with the sliding bracket 33 through a hinge structure 321, so that the mounting bracket 32 can adjust an included angle with the vertical direction (namely, the cutting feeding direction) around the hinge structure 321. The sliding bracket 33 is slidably disposed on the rack 100 through a sliding rail 34 and a sliding block 341, wherein the sliding rail 34 extends in the vertical direction, so that the sliding bracket 33 and the mounting bracket 32 can slide in the vertical direction.

In the embodiment, the vertical direction is the cutting feeding direction, and when the brittle and hard material is cut, the linear motion mechanism drives the rotary adjustment mechanism and the cutting line I11 and the cutting line II 12 thereon to move from top to bottom for cutting. And, the included angle between the mounting bracket 32 and the sliding bracket 33 (i.e. the included angle between the plane of the first cutting line and the second cutting line and the feeding direction of the cutting) can be adjusted during cutting. The plane where the first cutting line 11 and the second cutting line 12 are located is inclined by a certain included angle theta relative to the cutting feeding direction, namely, the included angle between the mounting bracket 32 and the sliding bracket 33 is theta, wherein the theta angle is 0-90 degrees. When the included angles theta are different, the preset distance between the first cutting line 11 and the second cutting line 12 on the projection plane of the cutting lines along the cutting feeding direction is changed, so that the cutting thickness of more than two cutting lines on the brittle and hard material 2 can be adjusted. Preferably, the inclination angle theta of the plane where the first cutting line and the second cutting line are located relative to the cutting feeding direction is 5-20 degrees, and the preset distance between the first cutting line 11 and the second cutting line 12 on the projection plane along the cutting feeding direction is 2-100 cm. In one embodiment, a fixing structure 322 is further provided between the mounting bracket 32 and the sliding bracket 33 for fixing the inclination angle of the mounting bracket 32. Wherein, fixed knot constructs 322 and sets up in the side of installing support 32, including location strip and reference column, is provided with the spout on the location strip, the reference column is located the spout, and the reference column can be for the bolt of screwing, and the reference column can slide in the spout or lock arbitrary position in the spout.

As shown in fig. 9 and 10, in another embodiment, a jacking pressure type adjusting mechanism is provided to adjust the distance between the projection surfaces of two or more cutting lines, such as the first cutting line 11 and the second cutting line 12, in the cutting mechanism along the cutting feeding direction. The cutting line I11 and the cutting line II 12 are arranged on a cutting guide wheel 3 of the existing cutting wheel train, and the cutting line I11 and the cutting line II 12 can be tensioned and driven to cut. The jacking pressure type adjusting mechanism is additionally provided with a jacking pressure wheel 31 on the basis of the existing cutting wheel system, and the distance between the jacking pressure wheel 31 and the cutting line II 12 in the vertical cutting feeding direction is changed by jacking the jacking pressure wheel 31. The structure of the pressing wheel 31 is the same as that of the guide cutting wheel 3, a wire groove is formed in the wheel surface of the pressing wheel 31, the pressing wheel 31 is arranged opposite to the cutting end surface, that is, the pressing wheel 31 is arranged towards the cutting end surface, so that the pressing wheel can press the second cutting line 12 along the direction perpendicular to the cutting feeding direction (that is, along the direction indicated by the arrow Y in the figure), and the second cutting line 12 deviates along the direction perpendicular to the cutting feeding direction, so that the distance between the cutting groove 21 formed by the first cutting line 11 and the cutting groove 22 formed by the second cutting line 12 (that is, the cutting thickness of the brittle and hard material) is adjustable.

Preferably, in order to enable the second cutting line 12 to contact with the whole cutting end face, at least two groups of the pressing rollers 31 are provided, and the two groups of the pressing rollers 31 are arranged at two ends of the cutting working interval of the second cutting line 12 at intervals and are used for pressing the second cutting line to the cutting end face.

Alternatively, in another embodiment, the first cutting line and the second cutting line are formed by the same annular cutting line (as shown in fig. 1), the rotation adjusting mechanism or the pressing wheel is not required to be arranged, the cutting wheel train of the annular cutting line has a plurality of cutting guide wheels, and the second cutting line is deviated along the direction perpendicular to the cutting feeding direction only by adjusting the position relationship of each cutting guide wheel 3 in the existing cutting wheel train of the wire saw, so as to be tightly attached to the cutting end surface.

Or, in another embodiment, the first cutting line and the second cutting line are single lines, or the second cutting line can be deviated along the direction perpendicular to the cutting feeding direction only by setting the positions of the second cutting line and the cutting wheel train without setting the above-mentioned rotation adjusting mechanism or pressing wheel.

Another embodiment provides a brittle and hard material cutting device, which is used for realizing the brittle and hard material cutting method. The brittle and hard material cutting device at least comprises a frame 100, a clamping mechanism, a cutting mechanism and a linear motion mechanism. The clamping mechanism can be a workpiece clamping mechanism of the existing wire saw and is used for fixing brittle and hard materials to be cut; the cutting mechanism is used for cutting the brittle and hard material, wherein the cutting mechanism comprises more than two cutting lines, namely a first cutting line 11 and a second cutting line 12, and the first cutting line 11 is positioned in front of the second cutting line 12 in the cutting and feeding direction; the linear motion mechanism is connected with the cutting mechanism or the clamping mechanism and is used for controlling the cutting mechanism or the clamping mechanism to move along the cutting feeding direction so as to cut the brittle and hard material.

In one embodiment, the first cutting line 11 and the second cutting line 12 are linear bodies of the same circular cutting line at different spatial positions, that is, the lower half of the circular cutting line in fig. 1 is a first cutting 11, and the upper half is a second linear body. In other embodiments, the first cutting line 11 and the second cutting line 12 may be single lines, that is, the first cutting line and the second cutting line are respectively formed by independent cutting lines, and the first cutting line and the second cutting line are respectively provided with independent cutting wheel trains and driving devices.

In one embodiment, the cutting mechanism includes a cutter train having a plurality of cutter guide wheels, the cutting wire is mounted on the cutter guide wheels, and the spacing between at least two of the cutter guide wheels 3 is adjustable, so that the spacing between the cutter guide wheels 3 can be adjusted according to the width of the brittle and hard material to be processed, and the first cutting wire 11 and the second cutting wire 12 are larger than the width of the brittle and hard material.

In one embodiment, the cutting mechanism is provided with two or more parallel cutting lines, and the cutting mechanism is provided with a first cutting line 11 and a second cutting line 12 as an example. The cutting line comprises a first cutting line 11 and a second cutting line 12, the first cutting line 11 and the second cutting line 12 are linear bodies of the same annular cutting line at different spatial positions, the first cutting line 11 and the second cutting line 12 are arranged on a cutting wheel system, the cutting wheel system comprises a plurality of cutting guide wheels 3, at least one cutting guide wheel 3 is connected to a driving device, the driving device can be a motor, a motor and other rotary power elements, and the driving device drives the first cutting line 11 and the second cutting line 12 to operate through the cutting guide wheels 3 so as to be used for executing a brittle and hard material cutting process.

As shown in fig. 1 to 3, the cutting feed direction (i.e., the direction indicated by the arrow X in the drawings) is fed from top to bottom along a vertical direction, that is, the cutting line i and the cutting line ii cut the brittle-hard material from top to bottom. In other embodiments, the first cutting line 11 and the second cutting line 12 may be fed in a horizontal direction to cut the brittle and hard material, that is, the brittle and hard material is cut from one end to the other end in the horizontal direction. In addition, a clamping mechanism for fixing the brittle and hard material can be arranged during cutting, and the linear motion mechanism drives the cutting line I and the cutting line to feed in two directions for cutting; or the positions of the cutting line I and the cutting line II are fixedly arranged, and the linear motion mechanism drives the clamping mechanism and the brittle and hard materials on the clamping mechanism to feed in the directions of the cutting line I and the cutting line II for cutting; or the direct movement mechanism drives the cutting line I, the cutting line II and the clamping mechanism to move relatively to cut. The linear speed interval of the cutting line I11 and the cutting line II 12 during cutting is 15-160m/s, and preferably, the optimal linear speed interval of the cutting line I11 and the cutting line II 12 during cutting is 20-120 m/s.

The cutting mechanism comprises an adjusting mechanism, and the adjusting mechanism can adjust the cutting mechanism, so that the plane of the cutting line is parallel to the cutting feeding direction, or the projection plane of the cutting line along the cutting feeding direction is separated by a preset distance.

In one embodiment, the adjustment mechanism may be the rotational adjustment mechanism shown in fig. 7 and 8 described in the above embodiments. The rotary adjusting mechanism comprises a mounting bracket 32, a sliding bracket 33, a sliding rail 34 and a sliding block 341, wherein the cutting guide wheels 3 of the cutting line I11 and the cutting line II 12 are mounted on the outer surface of the mounting bracket, the mounting bracket 32 is arranged opposite to the sliding bracket, and the top of the mounting bracket 32 is movably connected with the sliding bracket 33 through a hinge structure 321, so that the mounting bracket 32 can adjust an included angle with the vertical direction (namely, the cutting feeding direction) around the hinge structure 321. The sliding bracket 33 is slidably disposed on the rack 100 through a sliding rail 34 and a sliding block 341, wherein the sliding rail 34 extends in the vertical direction, so that the sliding bracket 33 and the mounting bracket 32 can slide in the vertical direction.

In the embodiment, the vertical direction is the cutting feeding direction, and when the brittle and hard material is cut, the linear motion mechanism drives the rotary adjustment mechanism and the cutting line I11 and the cutting line II 12 thereon to move from top to bottom for cutting. And, the included angle between the mounting bracket 32 and the sliding bracket 33 (i.e. the included angle between the plane of the first cutting line and the second cutting line and the feeding direction of the cutting) can be adjusted during cutting. The plane where the first cutting line 11 and the second cutting line 12 are located is inclined by a certain included angle theta relative to the cutting feeding direction, namely, the included angle between the mounting bracket 32 and the sliding bracket 33 is theta, wherein the theta angle is 0-90 degrees. When the included angles theta are different, the preset distance between the first cutting line 11 and the second cutting line 12 on the projection plane of the cutting lines along the cutting feeding direction is changed, so that the cutting thickness of more than two cutting lines on the brittle and hard material 2 can be adjusted. Preferably, the inclination angle theta of the plane where the first cutting line and the second cutting line are located relative to the cutting feeding direction is 5-20 degrees, and the preset distance between the first cutting line 11 and the second cutting line 12 on the projection plane along the cutting feeding direction is 2-100 cm.

In another embodiment, the adjusting mechanism may be a press-on adjusting mechanism as shown in fig. 9 and 10 described in the above embodiments. And a jacking pressure type adjusting mechanism is arranged to adjust the spacing distance of more than two cutting lines such as a first cutting line 11, a second cutting line 12 and the like in the cutting mechanism along the projection plane of the cutting feeding direction. The cutting line I11 and the cutting line II 12 are arranged on a cutting guide wheel 3 of the existing cutting wheel train, and the cutting line I11 and the cutting line II 12 can be tensioned and driven to cut. The jacking pressure type adjusting mechanism is additionally provided with a jacking pressure wheel 31 on the basis of the existing cutting wheel system, and the distance between the jacking pressure wheel 31 and the cutting line II 12 in the vertical cutting feeding direction is changed by jacking the jacking pressure wheel 31. The structure of the pressing wheel 31 is the same as that of the guide cutting wheel 3, a wire groove is formed in the wheel surface of the pressing wheel 31, the pressing wheel 31 is arranged opposite to the cutting end 21 surface, that is, the pressing wheel 31 is arranged towards the cutting end surface, so that the pressing wheel can press the second cutting line 12 along the direction perpendicular to the cutting feeding direction (that is, along the direction indicated by the arrow Y in the figure), and the second cutting line 12 deviates along the direction perpendicular to the cutting feeding direction, so that the distance between the cutting groove 21 formed by the first cutting line 11 and the cutting groove 12 formed by the second cutting line 12 (that is, the cutting thickness of the brittle and hard material) is adjustable.

Alternatively, in another embodiment, the first and second cutting wires are formed by a same circular cutting wire (as shown in fig. 1), the cutting wheel train of the circular cutting wire has a plurality of cutting guide wheels, the adjusting mechanism is only used for improving the position of each cutting guide wheel 3 in the existing cutting wheel train of the wire saw, and the adjusted position of the cutting guide wheels enables the second cutting wire to deviate along the direction perpendicular to the cutting feeding direction so as to be tightly attached to the cutting end surface.

Or, in another embodiment, the first cutting line and the second cutting line are single lines respectively, the adjusting mechanism is only modified by arranging the second cutting line and the position of the cutting wheel train thereof, and the second cutting line deviates along the direction perpendicular to the cutting feeding direction after the position of the second cutting line and the position of the cutting wheel train thereof are modified, so as to be tightly attached to the cutting end surface.

It should be noted that, although the above embodiments have been described herein, the invention is not limited thereto. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures or equivalent processes performed in the content of the present specification and the attached drawings, which are included in the scope of the present invention.

Claims

1. A method for cutting a brittle and hard material is characterized by comprising the following steps:

fixing the brittle and hard material;

2. The method for cutting a brittle and hard material as claimed in claim 1, characterized in that the adjustment of the cutting mechanism to space the projection plane of the cutting lines in the cutting feed direction by a predetermined distance comprises:

3. The method for cutting brittle-hard material as claimed in claim 2, characterized in that the distance between the cutting lines along the plane of the two or more cutting lines is 50-1000mm, and the preset included angle is in the range of 0-90 °.

4. The method for cutting a brittle and hard material as claimed in claim 1, characterized in that the adjustment of the cutting mechanism to space the projection plane of the cutting lines in the cutting feed direction by a predetermined distance comprises:

5. The method for cutting a brittle and hard material as claimed in claim 4, characterized in that the predetermined distance is in the range of 2cm-50 cm.

6. The method for cutting the brittle-hard material as claimed in claim 1, wherein the cutting mechanism is driven by a linear motion mechanism to move along the cutting feed direction, or the brittle-hard material is driven by the linear motion mechanism to move along the cutting feed direction, and the brittle-hard material is stone, crystal silicon or concrete.

7. A brittle and hard material cutting device, characterized by comprising:

8. The apparatus for cutting brittle-hard material as claimed in claim 7, characterized in that the cutting means further comprise adjusting means for adjusting the predetermined distance of the cutting line, the adjusting means comprising a rotary adjusting means or a pressure adjusting means.

9. The brittle-hard material cutting device according to claim 8, characterized in that the rotation adjusting mechanism is connected with the mounting bracket of the cutting line for adjusting a preset included angle between the mounting bracket and the cutting feed direction, so that the preset distance is adjustable;

10. The brittle-hard material cutting device according to claim 8, wherein the pitch of the cutting lines is 50-1000mm, the preset included angle is in the range of 1-20 °, the adjusting mechanism comprises a jacking and pressing type adjusting mechanism, the jacking and pressing type adjusting mechanism comprises a jacking and pressing wheel, and the jacking and pressing wheel is used for jacking and pressing the cutting lines to enable the preset distance to be adjustable;