A method and device for cutting brittle and hard materials

Abstract

The present invention relates to the field of brittle and hard material processing, and discloses a brittle and hard material cutting method and device, wherein the brittle and hard material is fixed; two or more mutually parallel cutting lines are arranged on the cutting mechanism, and the cutting mechanism is adjusted so that the plane where the cutting lines are located is parallel to the cutting feed direction, or the projection plane of the cutting lines along the cutting feed direction is spaced at a preset distance; the brittle and hard material is cut, and during the cutting, the two or more cutting lines are located in the same cutting groove on the brittle and hard material, or each of the cutting lines is located in a different cutting groove of the brittle and hard material. The above technical solution is flexible and efficient in cutting brittle and hard materials, and can perform single-line cutting or multi-line cutting simultaneously, greatly improving the cutting efficiency of brittle and hard materials.

Description

Technical Field

[0001] The present invention relates to the field of brittle and hard material processing, and in particular to a brittle and hard material cutting method and device. Background Art

[0002] Diamond wire is currently primarily used for squaring and chopping brittle materials such as stone and silicon crystals. The wire saw is equipped with multiple cutting guide wheels, forming a cutting wheel train. The diamond wire is a closed-loop cutting wire structure, laid in the guide wheel grooves of the cutting wheel train. The cutting wheel train rotates, driving the diamond wire in linear motion. Cutting generally occurs only in the lower half of the wire. The middle section of the wheel train serves as a clearance window to prevent interference between the wheel train and the material. The cutting wheel train is typically driven by a linear motion module mounted on the frame, enabling cutting.

[0003] Patent application number CN201780048352.6 discloses a method for cutting a silicon ingot, a method for manufacturing a silicon wafer, and a silicon wafer. Paragraph 0062 of the patent specification states, "Next, in step S2, the outer periphery of the obtained silicon ingot is ground to make its diameter uniform. The silicon ingot is then cut using the silicon ingot cutting method according to the present invention and sliced ​​into slices having a thickness of approximately 1 mm to obtain silicon wafers." Paragraph 0065 states, "Thereafter, in step S4, the obtained silicon wafer is transported to a polishing device and ground using an alumina polishing agent or the like."

[0004] Patent application number CN201280045340.5 discloses a method for cutting a workpiece and a wire saw. Paragraph 0079 of the specification states that "as described above, in the present invention, it is possible to suppress the local thinning of the workpiece at the start of cutting, especially on the wire recovery side where the groove spacing is narrower, thereby improving TTV. Therefore, the processing allowance in subsequent processes such as polishing and grinding can be reduced."

[0005] Conventional wire saws, such as diamond wire saws, typically use single-wire cutting (i.e., only one cut per reciprocating stroke), resulting in low efficiency in cutting brittle and hard materials. While some multi-wire saws have emerged, capable of performing multiple cuts per stroke, these devices are complex, expensive, and cumbersome to operate. Summary of the Invention

[0006] Therefore, it is necessary to provide a method for cutting brittle and hard materials to solve the technical problem of low processing efficiency of brittle and hard materials in the prior art.

[0007] To achieve the above object, a method for cutting brittle and hard materials comprises the following steps:

[0008] fixing the brittle and hard material;

[0009] The cutting mechanism is provided with two or more mutually parallel cutting lines, and the cutting mechanism is adjusted so that the plane where the cutting lines are located is parallel to the cutting feed direction, or so that the projection plane of the cutting lines along the cutting feed direction is spaced at a preset distance;

[0010] The cutting mechanism or the brittle hard material is controlled to move along the cutting feed direction to cut the brittle hard material. During the cutting, more than two cutting lines are located in the same cutting groove on the brittle hard material, or each cutting line is located in a different cutting groove of the brittle hard material.

[0011] Furthermore, the adjusting the cutting mechanism so that the projection plane of the cutting lines along the cutting feed direction is spaced by a preset distance comprises:

[0012] Adjusting the inclination angle of the cutting mechanism so that the planes on which the two or more cutting lines are located form a preset angle with the cutting feed direction, thereby making the projection planes of the cutting lines along the cutting feed direction spaced at a preset distance; or

[0013] The cutting mechanism includes a mounting bracket, and the cutting line is set on the mounting bracket. By adjusting the inclination angle of the mounting bracket, the plane where two or more cutting lines are located forms a preset angle with the cutting feed direction, so that the projection surface of the cutting lines along the cutting feed direction is spaced at a preset distance.

[0014] Furthermore, the spacing between the cutting lines along the plane where the two or more cutting lines are located is 50-1000 mm, and the range of the preset angle is 0-90°.

[0015] Furthermore, the adjusting the cutting mechanism so that the projection plane of the cutting lines along the cutting feed direction is spaced by a preset distance comprises:

[0016] A pressing wheel is used to press at least one of the cutting lines, so that the cutting lines move parallel to the preset direction, thereby making the projection surfaces of the cutting lines along the cutting feed direction spaced apart by a preset distance.

[0017] Furthermore, the preset distance ranges from 2 cm to 50 cm.

[0018] Furthermore, the cutting mechanism is driven by a linear motion mechanism to move along the cutting feed direction, or the brittle and hard material is driven by the linear motion mechanism to move along the cutting feed direction, and the brittle and hard material is stone, crystalline silicon or concrete.

[0019] In order to solve the above technical problems, the present invention also provides another technical solution:

[0020] A brittle and hard material cutting device, comprising:

[0021] A clamping mechanism, wherein the clamping mechanism is used to fix the brittle hard material, wherein the brittle hard material is any one of stone, crystalline silicon or concrete;

[0022] A cutting mechanism, wherein the cutting mechanism comprises two or more mutually parallel cutting lines, wherein the planes on which the cutting lines lie are parallel to the cutting feed direction, or the projection planes of the cutting lines along the cutting feed direction are spaced apart by a preset distance;

[0023] A linear motion mechanism is connected to the cutting mechanism or the clamping mechanism, and is used to control the cutting mechanism or the clamping mechanism to move along the cutting feed direction to cut the brittle hard material. During the cutting, more than two cutting lines are located in the same cutting groove on the brittle hard material, or each cutting line is located in a different cutting groove of the brittle hard material.

[0024] Furthermore, the cutting mechanism further includes an adjusting mechanism, and the adjusting mechanism is used to adjust the preset distance of the cutting line. The adjusting mechanism includes a rotary adjusting mechanism or a top-pressing adjusting mechanism.

[0025] Furthermore, the rotation adjustment mechanism is connected to the mounting bracket of the cutting line and is used to adjust the preset angle between the mounting bracket and the cutting feed direction so that the preset distance is adjustable;

[0026] The rotation adjustment mechanism includes the mounting bracket, the sliding bracket, the slide rail and the slider. The cutting line is installed on the mounting bracket through the cutting guide wheel. The top of the mounting bracket is movably connected to the sliding bracket through a hinge structure, so that the mounting bracket can adjust the angle with the vertical direction around the hinge structure.

[0027] Furthermore, the spacing of the cutting lines is 50-1000 mm, the range of the preset angle is 1-20 degrees, and the adjustment mechanism includes a top-pressing adjustment mechanism, and the top-pressing adjustment mechanism includes a top-pressing wheel, and the top-pressing wheel is used to press the cutting lines to make the preset distance adjustable;

[0028] The cutting mechanism comprises a cutting wheel system having a plurality of cutting guide wheels, the cutting line is mounted on the cutting guide wheels, and the spacing between at least two of the plurality of cutting guide wheels is adjustable.

[0029] Unlike existing technologies, the above-mentioned technical solution includes two or more mutually parallel cutting lines, the planes on which the cutting lines lie parallel to the cutting feed direction, or the projections of the cutting lines along the cutting feed direction are separated by a preset distance. Therefore, during cutting, the two or more cutting lines are located in the same cutting groove on the brittle hard material, or each cutting line is located in a different cutting groove of the brittle hard material. Therefore, the above-mentioned brittle hard material cutting method is flexible and efficient, and can perform single-line cutting or multi-line cutting simultaneously, greatly improving the cutting efficiency of brittle hard materials.

[0030] Furthermore, the above technical solution can also adjust the cutting mechanism so that the projection surface interval of the cutting line along the cutting feed direction can be adjusted to a preset distance, thereby adjusting the cutting width of brittle and hard materials.

[0031] Furthermore, the adjustment mechanism includes a rotary adjustment mechanism or a top-pressure adjustment mechanism, which has a simple structure, convenient adjustment operation, and low cost.

[0032] Furthermore, the spacing between the cutting guide wheels of the cutting line of the above technical solution is adjustable, which can meet the needs of cutting large-scale brittle and hard materials, while ensuring that the cutting equipment has a compact structure and reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the cutting line described in the specific implementation method;

[0034] Figure 2 for Figure 1 Schematic diagram of the cross section along the AA direction;

[0035] Figure 3 It is a schematic diagram of the cutting line during cutting according to the specific embodiment;

[0036] Figure 4 for Figure 1 Schematic diagram of the cross section along the AA direction after the adjustment of the middle cutting line 1 and the cutting line 2;

[0037] Figure 5 Schematic diagram of the cutting line 1 and the cutting line 2 during cutting after the cutting line 1 and the cutting line 2 are adjusted in a specific embodiment;

[0038] Figure 6 This is a flowchart of the steps of the method for cutting brittle and hard materials according to a specific embodiment;

[0039] Figure 7 Schematic diagram of the three-dimensional structure of the rotation adjustment mechanism described in the specific embodiment;

[0040] Figure 8 for Figure 7 Side view of

[0041] Figure 9 Schematic diagram of the three-dimensional structure of the top pressure adjustment mechanism described in the specific embodiment;

[0042] Figure 10 for Figure 9 Side view of

[0043] Description of reference numerals:

[0044] 11. Cutting line 1;

[0045] 12. Cutting line 2;

[0046] 2. Brittle and hard materials;

[0047] 21. Cutting groove 1;

[0048] 22. Cutting groove 2;

[0049] 3. Cutting guide wheel;

[0050] 31. Top pressure wheel;

[0051] 32. Install the bracket;

[0052] 321, hinged structure;

[0053] 322, fixed structure;

[0054] 33. Sliding bracket;

[0055] 34. Slide rail;

[0056] 341, slider;

[0057] 100, rack;

[0058] θ, the angle between the plane where the cutting line is located and the cutting feed direction; DETAILED DESCRIPTION

[0059] In order to explain the technical content, structural features, achieved objectives and effects of the technical solution in detail, the following is a detailed description in conjunction with specific embodiments and accompanying drawings.

[0060] See also Figures 1 to 10This embodiment provides a method and device for cutting brittle and hard materials. The brittle and hard materials include, but are not limited to, one or more of stone, silicon crystal materials, concrete, and glass. The cutting method includes, but is not limited to, cutting using cutting wire 11 and cutting wire 2 12, wherein cutting wire 11 and cutting wire 2 12 can be diamond wires or shaped cutting wires made of other high-hardness materials. Depending on the brittle and hard materials to be cut, the diameters of cutting wire 11 and cutting wire 2 12 range from 0.1 to 1.0 mm. In the cutting method, the brittle material is cut simultaneously by two or more cutting wires, such as cutting wire 11 and cutting wire 2 12, thereby improving the cutting efficiency and cutting effect. The two or more cutting wires, such as cutting wire 11 and cutting wire 2 12, can form a cutting groove at the same position of the brittle and hard material, and the two or more cutting wires are all cut in the same cutting groove, or the two or more cutting wires can form two or more cutting grooves at different positions of the brittle and hard material, and each cutting line falls into a different cutting groove to cut the brittle and hard material.

[0061] like Figure 1 In the specific embodiment, the cutting mechanism is provided with two or more mutually parallel cutting lines. The following description will be made by taking the cutting mechanism provided with a cutting line 11 and a cutting line 2 12 as an example. The cutting lines include a cutting line 11 and a cutting line 2 12. The cutting line 11 and the cutting line 2 12 are line bodies of the same annular cutting line at different spatial positions. The cutting line 11 and the cutting line 2 12 are arranged on a cutting wheel train. The cutting wheel train includes a plurality of cutting guide wheels 3. At least one of the cutting guide wheels 3 is connected to a driving device. The driving device can be a rotating power element such as an electric motor. The driving device drives the cutting line 1 11 and the cutting line 2 12 to run through the cutting guide wheel 3, thereby being used to perform a brittle and hard material cutting process.

[0062] Combine Figures 2 to 5 As shown, the cutting mechanism is adjustable so that the plane where the cutting line is located is parallel to the cutting feed direction, or the projection plane of the cutting line along the cutting feed direction is spaced at a preset distance.

[0063] like Figure 2 and Figure 3 As shown, the planes where the cutting line 11 and the cutting line 12 are located are parallel to the cutting feed direction. The cutting line 11 and the cutting line 2 12 are both used to cut brittle and hard materials. The cutting line 11 is located in front of the cutting feed direction, and the cutting line 2 12 is located behind the cutting feed direction relative to the cutting line 11. Specifically, as Figures 1 to 3As shown, the direction indicated by the arrow X in the figure is the cutting feed direction. During the double-line cutting process, the cutting line 1 11 and the cutting line 2 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 to move the brittle hard material 2. The cutting line 1 11 cuts the brittle hard material 2 to form a cutting groove 1 21. The cutting line 2 12 and the cutting line 1 are both located in the cutting feed direction. Therefore, when the cutting mechanism continues to feed, the cutting line 2 12 also enters the cutting groove 1 21. In some embodiments, the positions of the cutting line 1 1 and the cutting line 2 12 are fixed, and the linear motion mechanism is connected to the clamping device of the brittle hard material 2 to drive the clamping device and the brittle hard material 2 thereon to move in the direction of the cutting line 1 11 and the cutting line 2 12 (i.e., Figure 1 The cutting line 1 11 and the cutting line 2 12 are cut at a speed of 15-160 m / s. Preferably, the optimal speed range for the cutting line 1 11 and the cutting line 2 12 is 20-120 m / s.

[0064] In the above embodiment, cutting line one 11 and cutting line two 12 are set to cut the same cutting position of the brittle and hard material, so two cuts can be performed in one cutting operation, and cutting line two 12 can perform a second cutting or grinding on the cutting line marks or burrs on the cutting end surface formed by the first close line 11, thereby greatly improving the flatness of the cutting end surface. After double-line cutting, the cutting end surface does not need to be ground or polished, or the workload of the grinding or polishing process is greatly reduced.

[0065] exist Figure 1 In the embodiment shown, the cutting line 11 and the cutting line 2 12 are the line bodies of the same annular cutting line at different spatial positions, that is, Figure 1 The lower half of the middle ring cutting line is the first cutting line 11, and the upper half is the second cutting line. In other embodiments, the cutting line 11 and the cutting line 2 12 can also be single lines, that is, the cutting line 1 and the cutting line 2 are respectively composed of independent cutting lines, and the cutting line 1 and the cutting line 2 are respectively provided with independent cutting gear trains and drive devices.

[0066] like Figure 4 and Figure 5 As shown, it is the projection surface of the cutting line 11 and the cutting line 12 along the cutting feed direction (i.e. Figure 4 and Figure 5 The two cutting lines (in the horizontal direction indicated by arrow Y) are separated by a preset distance. When the cutting mechanism is cutting, cutting line 1 forms cutting groove 1 21 in the brittle hard material 2, and cutting line 2 12 forms cutting groove 22 in the brittle hard material 2, thereby performing multiple-line cutting on the brittle hard material 2. Therefore, the cutting mechanism can perform two or more cuts in a single reciprocating motion, greatly improving the efficiency of cutting brittle hard materials.

[0067] The embodiment in which the cutting mechanism includes three or more cutting lines is similar to the embodiment in which the above-mentioned cutting mechanism has only cutting line one 11 and cutting line two 12. Those skilled in the art can implement the embodiment in which more than three cutting lines are provided according to the above-mentioned embodiment, which will not be described in detail here.

[0068] like Figure 6 FIG. 1 is a flow chart of a method for cutting brittle and hard materials according to a specific embodiment of the present invention, wherein the method for cutting brittle and hard materials comprises the following steps:

[0069] S601, fixing the brittle and hard material 2;

[0070] S602, adjusting the cutting mechanism so that the plane where the cutting line is located is parallel to the cutting feed direction, or so that the projection plane of the cutting line along the cutting feed direction is spaced at a preset distance;

[0071] S603, control the cutting mechanism or the brittle hard material to move along the cutting feed direction to cut the brittle hard material. During the cutting, more than two cutting lines are located in the same cutting groove on the brittle hard material, or each cutting line is located in a different cutting groove of the brittle hard material.

[0072] Among them, in step S601, the brittle and hard material 2 can be clamped and fixed by the existing clamping device of the wire saw. In step S602, the positions of cutting line 11 and cutting line 2 12 can be pre-set before step S601. Along the cutting feed direction, cutting line 1 11 is in front of cutting line 2 12. Cutting line 1 and cutting line 2 can be diamond wires with a diameter of 0.1-1.0, and the spacing between cutting line 1 11 and cutting line 2 12 is 50-1000mm. The cutting length of cutting line 1 11 and cutting line 2 12 is 50-2000mm, that is, cutting line 1 11 and cutting line 2 12 can cut workpieces with a size between 50-2000mm.

[0073] In step S603, the linear speed range of cutting line 11 and cutting line 2 12 is 15-160m / s, and the optimal linear speed is 20-120m / s. Figures 1 to 5As shown, the cutting feed direction (i.e., the direction indicated by the arrow X in the figure) is fed from top to bottom in the vertical direction, that is, the cutting line 11 and the cutting line 2 12 cut the brittle hard material 2 from top to bottom. In other embodiments, the cutting line 11 and the cutting line 2 12 can be fed in the horizontal direction to cut the brittle hard material, that is, the brittle hard material is cut from one end to the other end of the horizontal direction. Moreover, during cutting, the clamping mechanism of the brittle hard material 2 can be set to be fixed, and the linear motion mechanism drives the cutting line 1 and the cutting line 2 to feed for cutting; or, the positions of the cutting line 1 and the cutting line 2 are fixed, and the linear motion mechanism drives the clamping mechanism and the brittle hard material thereon to feed in the direction of the cutting line 1 11 and the cutting line 2 12 for cutting; or, the direct motion mechanism simultaneously drives the cutting line 1 and the cutting line 2 and the clamping mechanism to move relative to each other for cutting.

[0074] In this brittle and hard material cutting method, the brittle and hard material is cut by cutting line one and cutting line two, and cutting line two can perform secondary cutting or grinding on the cutting end face formed by cutting line one, which can greatly improve the cutting effect and cutting efficiency of the brittle and hard material.

[0075] In step S603, the cutting line 11 and the cutting line 2 12 are installed on the cutting guide wheel 3. The cutting line 11 and the cutting line 2 12 rotate during cutting, so that the circumference of the cutting line 11 and the cutting line 2 12 can evenly contact and cut the brittle and hard materials, so that the cutting line 1 and the cutting line 2 are evenly worn, effectively extending the service life of the cutting line and achieving better economic benefits.

[0076] like Figure 4 and Figure 5 As shown, the projection surface of the cutting line 11 and the cutting line 12 along the cutting feed direction (i.e. Figure 4 and Figure 5 The horizontal direction (indicated by the arrow Y) is separated by a preset distance.

[0077] like Figures 7 to 10 As shown, the cutting line 11 is in front of the cutting feed direction of the cutting line 2 12, and the projection plane along the cutting feed direction (ie Figure 4 and Figure 5 The preset distance between the cutting line 11 and the cutting line 12 along the projection surface of the cutting feed direction is adjustable, so that the cutting thickness of more than two cutting lines on brittle and hard materials can be adjusted.

[0078] like Figure 7 and Figure 8As shown, in this specific embodiment, a rotation adjustment mechanism can be provided to adjust the position of the cutting line 11 and the cutting line 2 12. The rotation adjustment mechanism includes a mounting bracket 32, a sliding bracket 33, a slide rail 34 and a slider 341, wherein the cutting guide wheels 3 of the cutting line 11 and the cutting line 2 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 to the sliding bracket 33 through a hinge structure 321, so that the mounting bracket 32 ​​can adjust the angle with the vertical direction (i.e., the cutting feed direction) around the hinge structure 321. The sliding bracket 33 is slidably provided on the frame 100 through the slide rail 34 and the slider 341, wherein the slide rail 34 extends in the vertical direction, so that the sliding bracket 33 and the mounting bracket 32 ​​can slide in the vertical direction.

[0079] In this embodiment, the vertical direction is the cutting feed direction. When cutting brittle and hard materials, the linear motion mechanism drives the rotary adjustment mechanism and the cutting line 11 and the cutting line 2 12 thereon to move from top to bottom for cutting. In addition, when cutting, the angle between the mounting bracket 32 ​​and the sliding bracket 33 can be adjusted (that is, the angle between the plane where the cutting line 1 and the cutting line 2 are located and the cutting feed direction is adjusted). Among them, the plane where the cutting line 11 and the cutting line 2 12 are located is tilted at a certain angle θ relative to the cutting feed direction, that is, the angle between the mounting bracket 32 ​​and the sliding bracket 33 is θ, where the angle θ is 0-90°. When the angle θ is different, the preset distance between the cutting line 11 and the cutting line 2 12 on the projection plane of the cutting line along the cutting feed direction also changes accordingly, thereby adjusting the cutting thickness of more than two cutting lines on the brittle and hard material 2. Preferably, the optimal value of the inclination angle θ of the plane where the cutting line 1 and the cutting line 2 are located relative to the cutting feed direction is 5-20 degrees, and the preset distance between the cutting line 11 and the cutting line 2 12 on the projection plane along the cutting feed direction is in the range of 2cm-100cm. 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. The fixing structure 322 is provided on the side of the mounting bracket 32 ​​and includes a positioning bar and a positioning column. The positioning bar is provided with a slide groove. The positioning column is located in the slide groove. The positioning column can be a tightening bolt. The positioning column can slide in the slide groove or be locked at any position in the slide groove.

[0080] like Figure 9 and Figure 10As shown, in another embodiment, a top-pressure adjustment mechanism is provided to adjust the distance between two or more cutting lines, such as cutting line 11 and cutting line 2 12, in the cutting mechanism, as projected along the cutting feed direction. Cutting line 11 and cutting line 2 12 are arranged on the cutting guide wheel 3 of the existing cutting wheel train. Cutting line 11 and cutting line 2 12 can be tensioned and driven for cutting. The top-pressure adjustment mechanism adds a top-pressure wheel 31 to the existing cutting wheel train. The top-pressure wheel 31 presses against cutting line 2 12, causing the distance between the cutting line 12 and the cutting line 11 to change perpendicular to the cutting feed direction. Among them, the structure of the pressing wheel 31 is the same as that of the cutting guide wheel 3, and there is a wire groove on the wheel surface of the pressing wheel 31. The pressing wheel 31 is arranged relative to the cutting end face, that is, the pressing wheel 31 is arranged toward the cutting end face, so that the pressing wheel can press the cutting line 2 12 in a direction perpendicular to the cutting feed direction (that is, in the direction indicated by the arrow Y in the figure), so that the cutting line 2 12 is offset in a direction perpendicular to the cutting feed direction, so that the spacing between the cutting groove 21 formed by the cutting line 11 and the cutting groove 22 formed by the cutting line 2 12 (that is, the cutting thickness of the brittle and hard material) is adjustable.

[0081] Preferably, in order to enable the cutting line 2 12 to contact the entire cutting end surface, the pressing wheels 31 are at least two groups, and the two groups of pressing wheels 31 are spaced apart at both ends of the cutting working area of ​​the cutting line 2 12 to press the cutting line 2 toward the cutting end surface.

[0082] Alternatively, in another embodiment, the cutting line 1 and the cutting line 2 are formed by the same annular cutting line (eg Figure 1 As shown in the figure, there is no need to set the above-mentioned rotation adjustment mechanism or top pressure wheel. The cutting wheel system of the annular cutting line has multiple cutting guide wheels. Only by adjusting the position relationship of each cutting guide wheel 3 in the existing cutting wheel system of the wire saw, the cutting line 2 is offset perpendicular to the cutting feed direction, so as to be close to the cutting end face.

[0083] Alternatively, in another embodiment, the cutting line one and the cutting line two are respectively single lines, and there is no need to set the above-mentioned rotation adjustment mechanism or top pressure wheel. The cutting line two can be offset perpendicular to the cutting feed direction simply by setting the position of the cutting line two and its cutting wheel system.

[0084] Another embodiment provides a brittle and hard material cutting device, which is used to implement the brittle and hard material cutting method. The brittle and hard material cutting device at least includes a frame 100, a clamping mechanism, a cutting mechanism and a linear motion mechanism. The clamping mechanism can be a workpiece clamping mechanism of an existing wire saw, which is used to fix the brittle and hard material to be cut; the cutting mechanism is used to cut the brittle and hard material, wherein the cutting mechanism includes two or more cutting lines, namely, cutting line 11 and cutting line 2 12, and the cutting line 11 is located in front of the cutting feed direction relative to the cutting line 2 12; the linear motion mechanism is connected to the cutting mechanism or the clamping mechanism, and is used to control the cutting mechanism or the clamping mechanism to move along the cutting feed direction to cut the brittle and hard material.

[0085] In one embodiment, the cutting line 11 and the cutting line 2 12 are the line bodies of the same annular cutting line at different spatial positions, that is, Figure 1 The lower half of the middle ring cutting line is the first cutting line 11, and the upper half is the second cutting line. In other embodiments, the cutting line 11 and the cutting line 2 12 can also be single lines, that is, the cutting line 1 and the cutting line 2 are respectively composed of independent cutting lines, and the cutting line 1 and the cutting line 2 are respectively provided with independent cutting gear trains and drive devices.

[0086] In one embodiment, the cutting mechanism includes a cutting wheel system having multiple cutting guide wheels, and the cutting line is installed on the cutting guide wheel. The spacing between at least two of the multiple cutting guide wheels 3 is adjustable, so the spacing between the cutting guide wheels 3 can be adjusted according to the width of the processed brittle and hard material, so that cutting line 11 and cutting line 2 12 are larger than the width of the brittle and hard material.

[0087] In one embodiment, the cutting mechanism is provided with two or more mutually parallel cutting lines. The following description will be made using an example in which the cutting mechanism is provided with a cutting line 11 and a cutting line 2 12. The cutting lines include cutting line 11 and cutting line 2 12. Cutting line 11 and cutting line 2 12 are line bodies of the same annular cutting line at different spatial positions. Cutting line 11 and cutting line 2 12 are arranged on a cutting wheel train. The cutting wheel train includes multiple cutting guide wheels 3. At least one of the cutting guide wheels 3 is connected to a driving device. The driving device can be a rotating power element such as an electric motor. The driving device drives cutting line 1 11 and cutting line 2 12 through the cutting guide wheels 3, thereby performing a brittle and hard material cutting process.

[0088] like Figures 1 to 3As shown, the cutting feed direction (i.e., the direction indicated by the arrow X in the figure) is fed from top to bottom in the vertical direction, that is, the cutting line one and the cutting line two cut the brittle and hard material from top to bottom. In other embodiments, the cutting line one 11 and the cutting line two 12 can be fed in the 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 of the horizontal direction. In addition, during cutting, a clamping mechanism for the brittle and hard material can be set to be fixed, and a linear motion mechanism drives the cutting line one and the cutting line two to feed for cutting; or, the positions of the cutting line one and the cutting line two are fixed, and the linear motion mechanism drives the clamping mechanism and the brittle and hard material thereon to feed in the direction of the cutting line one and the cutting line two for cutting; or, the direct motion mechanism simultaneously drives the cutting line one and the cutting line two and the clamping mechanism to move relative to each other for cutting. The linear speed range of the cutting line 11 and the cutting line 2 12 during cutting is 15-160 m / s. Preferably, the optimal linear speed range of the cutting line 11 and the cutting line 2 12 during cutting is 20-120 m / s.

[0089] The cutting mechanism includes an adjusting mechanism, which can be used to adjust the cutting mechanism so that the plane where the cutting line is located is parallel to the cutting feed direction, or the projection plane of the cutting line along the cutting feed direction is spaced at a preset distance.

[0090] In one embodiment, the adjustment mechanism may be the one described in the above embodiment. Figure 7 and Figure 8 The rotary adjustment mechanism shown in the figure includes a mounting bracket 32, a sliding bracket 33, a slide rail 34 and a slider 341, wherein the cutting guide wheels 3 of cutting line 11 and cutting line 2 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 to the sliding bracket 33 via a hinge structure 321, so that the mounting bracket 32 ​​can adjust the angle with the vertical direction (i.e., the cutting feed direction) around the hinge structure 321. The sliding bracket 33 is slidably arranged on the frame 100 via the slide rail 34 and the slider 341, wherein the slide rail 34 extends in the vertical direction, so that the sliding bracket 33 and the mounting bracket 32 ​​can slide in the vertical direction.

[0091] In this embodiment, the vertical direction is the cutting feed direction. When cutting brittle and hard materials, the linear motion mechanism drives the rotary adjustment mechanism and the cutting line 11 and the cutting line 2 12 thereon to move from top to bottom for cutting. In addition, when cutting, the angle between the mounting bracket 32 ​​and the sliding bracket 33 can be adjusted (that is, the angle between the plane where the cutting line 1 and the cutting line 2 are located and the cutting feed direction is adjusted). Among them, the plane where the cutting line 11 and the cutting line 2 12 are located is tilted at a certain angle θ relative to the cutting feed direction, that is, the angle between the mounting bracket 32 ​​and the sliding bracket 33 is θ, where the angle θ is 0-90°. When the angle θ is different, the preset distance between the cutting line 11 and the cutting line 2 12 on the projection plane of the cutting line along the cutting feed direction also changes accordingly, thereby adjusting the cutting thickness of more than two cutting lines on the brittle and hard material 2. Preferably, the optimal value of the inclination angle θ of the plane where the cutting line 1 and the cutting line 2 are located relative to the cutting feed direction is 5-20°, and the preset distance between the cutting line 11 and the cutting line 2 12 on the projection surface along the cutting feed direction is in the range of 2cm-100cm.

[0092] In another embodiment, the adjustment mechanism can be the one described in the above embodiment. Figure 9 and Figure 10 The top-pressure adjustment mechanism shown. The top-pressure adjustment mechanism is provided to adjust the distance between two or more cutting lines, such as cutting line 11 and cutting line 2 12, in the cutting mechanism along the projection plane of the cutting feed direction. Among them, cutting line 11 and cutting line 2 12 are arranged on the cutting guide wheel 3 of the existing cutting wheel train. Cutting line 11 and cutting line 2 12 can be tensioned and driven for cutting. The top-pressure adjustment mechanism adds a top-pressure wheel 31 on the basis of the existing cutting wheel train. The top-pressure wheel 31 presses cutting line 2 12 to change the distance between it and cutting line 11 in the direction perpendicular to the cutting feed direction. Among them, the structure of the pressing wheel 31 is the same as that of the cutting guide wheel 3, and there is a wire groove on the wheel surface of the pressing wheel 31. The pressing wheel 31 is arranged relative to the cutting end 21, that is, the pressing wheel 31 is arranged toward the cutting end, so that the pressing wheel can press the cutting line 2 12 in a direction perpendicular to the cutting feed direction (that is, in the direction indicated by the arrow Y in the figure), so that the cutting line 2 12 is offset in a direction perpendicular to the cutting feed direction, so that the spacing between the cutting groove 21 formed by the cutting line 11 and the cutting groove 22 formed by the cutting line 2 12 (that is, the cutting thickness of the brittle and hard material) is adjustable.

[0093] Alternatively, in another embodiment, the cutting line 1 and the cutting line 2 are formed by the same annular cutting line (eg Figure 1As shown), the cutting wheel system of the annular cutting wire has multiple cutting guide wheels, and the adjustment mechanism is only an improvement on the position of each cutting guide wheel 3 in the existing cutting wheel system of the wire saw. The position of the cutting guide wheel after adjustment makes the cutting wire 2 offset perpendicular to the cutting feed direction, so as to be close to the cutting end face.

[0094] Alternatively, in another embodiment, the cutting line one and the cutting line two are respectively single lines, and the adjustment mechanism is only improved by setting the position of the cutting line two and its cutting wheel train. After the position of the cutting line two and its cutting wheel train are improved, the cutting line two is offset in a direction perpendicular to the cutting feed direction, so as to be close to the cutting end face.

[0095] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of the present invention. Therefore, based on the innovative concept of the present invention, changes and modifications to the embodiments described herein, or equivalent structural or equivalent process transformations made using the contents of the present invention's specification and drawings, and direct or indirect application of the above technical solutions to other related technical fields, are all included in the scope of patent protection of the present invention.

Claims

1. A brittle and hard material cutting device, characterized in that: include: A clamping mechanism, wherein the clamping mechanism is used to fix the brittle hard material, wherein the brittle hard material is any one of stone, crystalline silicon or concrete; A cutting mechanism, wherein the cutting mechanism comprises two or more mutually parallel cutting lines, wherein the planes where the cutting lines are located are parallel to the cutting feed direction, or the projection planes of the cutting lines along the cutting feed direction are spaced at a preset distance; A linear motion mechanism, the linear motion mechanism is connected to the cutting mechanism or the clamping mechanism, and is used to control the cutting mechanism or the clamping mechanism to move along the cutting feed direction to cut the brittle hard material. During the cutting, more than two cutting lines are located in the same cutting groove on the brittle hard material, or each cutting line is located in a different cutting groove of the brittle hard material; The cutting mechanism further comprises an adjusting mechanism, the adjusting mechanism being used to adjust the preset distance of the cutting line, the adjusting mechanism comprising a rotating adjusting mechanism or a top-pressing adjusting mechanism; the rotating adjusting mechanism is connected to the mounting bracket of the cutting line, and is used to adjust the preset angle between the mounting bracket and the cutting feed direction, so that the preset distance is adjustable; The rotation adjustment mechanism includes the mounting bracket, the sliding bracket, the slide rail and the slider. The cutting line is installed on the mounting bracket through a cutting guide wheel. The top of the mounting bracket is movably connected to the sliding bracket through a hinge structure, so that the mounting bracket can adjust the angle with the vertical direction around the hinge structure.

2. The brittle and hard material cutting device according to claim 1, characterized in that: The spacing of the cutting lines is 50-1000 mm, the range of the preset angle is 1-20°, the adjusting mechanism includes a top-pressing adjusting mechanism, the top-pressing adjusting mechanism includes a top-pressing wheel, and the top-pressing wheel is used to press the cutting lines to make the preset distance adjustable; The cutting mechanism comprises a cutting wheel system having a plurality of cutting guide wheels, the cutting line is mounted on the cutting guide wheels, and the spacing between at least two of the plurality of cutting guide wheels is adjustable.

3. A method for cutting brittle and hard materials using the brittle and hard material cutting device according to claim 1, characterized in that: The following steps are involved: Fixing the brittle and hard material; The cutting mechanism is provided with two or more mutually parallel cutting lines, and the cutting mechanism is adjusted so that the plane where the cutting lines are located is parallel to the cutting feed direction, or the projection plane of the cutting lines along the cutting feed direction is spaced at a preset distance; Controlling the cutting mechanism or the brittle hard material to move along the cutting feed direction to cut the brittle hard material, wherein during the cutting, more than two cutting lines are located in the same cutting groove on the brittle hard material, or each cutting line is located in a different cutting groove of the brittle hard material; The adjusting the cutting mechanism so that the projection plane of the cutting lines along the cutting feed direction is spaced by a preset distance comprises: Adjust the inclination angle of the cutting mechanism so that the plane where the two or more cutting lines are located forms a preset angle with the cutting feed direction, so that the projection planes of the cutting lines along the cutting feed direction are spaced at a preset distance; or The cutting mechanism comprises a mounting bracket, the cutting lines are arranged on the mounting bracket, and by adjusting the inclination angle of the mounting bracket, the planes where two or more cutting lines are located form a preset angle with the cutting feed direction, so that the projection planes of the cutting lines along the cutting feed direction are spaced at a preset distance; or A pressing wheel is used to press at least one of the cutting lines, so that the cutting lines move parallel to a preset direction, so that the projection surfaces of the cutting lines along the cutting feed direction are spaced apart by a preset distance.

4. The method for cutting brittle and hard materials according to claim 3, characterized in that: The spacing between the cutting lines along the plane where the two or more cutting lines are located is 50-1000 mm, and the range of the preset angle is 0-90°.

5. The method for cutting brittle and hard materials according to claim 3, characterized in that: The preset distance ranges from 2 cm to 50 cm.

6. The method for cutting brittle and hard materials according to claim 3, characterized in that: 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, crystalline silicon or concrete.

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