Method for improving cutting force of diamond wire, production system, cutting system and diamond wire

Abstract

The invention relates to a method for improving diamond wire cutting force, a production system, a cutting system and a diamond wire, and the method comprises the steps that a bus is guided into a machining system through a first groove of a production pulley, the installation parallelism of the production pulley and the bus is controlled, friction of the first groove to the bus is reduced, the number of torsion turns of a diamond wire coating is reduced, and the finished diamond wire is obtained; the finished diamond wire is wound to third grooves obliquely formed in the guide wheels through second grooves of the winding pulleys, and a wire net is formed between the guide wheels; acquiring the rotation direction of the guide wheel, and judging the first torsion direction generated by single-side friction of the side wall of the third groove on the finished diamond wire at the moment; the inclination of the winding pulley is adjusted to enable the side wall of the second groove to be in single-side friction with the finished diamond wire, and it is ensured that the second twisting direction generated by the side wall of the second groove to the finished diamond wire is the same as the first twisting direction. The cutting capacity of the diamond wire is enhanced through the improvement of the production process and the same-direction twisting fit after installation.

Description

Technical Field

[0001] The present application relates to the field of diamond wire cutting technology, and in particular to a method for improving the cutting force of a diamond wire, a production system, a cutting system and a diamond wire. Background Art

[0002] With the development of diamond wire cutting technology, diamond wire thinning technology has emerged. For example, in the field of photovoltaic cutting, the use of thinned diamond wire to achieve single crystal silicon wafer cutting can effectively increase the number of silicon wafers cut from silicon materials, thereby reducing costs and increasing efficiency.

[0003] In the process of thinning diamond wire, the production of diamond wire requires the use of a diamond wire production system. The production system is equipped with a processing system and a production pulley. The production pulley is used to guide the mother bar of the diamond wire into the processing system, and the processing system electroplates the coating on the moving mother bar to form the diamond wire. As the diameter of the diamond wire produced in this way becomes thinner and thinner, the breaking tension it can withstand becomes smaller and smaller, and the tension applied to the diamond wire during cutting also decreases. At this time, the influence of the additional external force during the cutting process becomes greater and greater, which will greatly affect the cutting ability and product quality.

[0004] Specifically, when cutting with diamond wire, thousands of specific grooves will be evenly distributed on the guide wheel, and the grooves will be obliquely distributed on the circumference of the guide wheel; the diamond wire will be wound in the grooves to form a wire net between two or more guide wheels. The wire net of the diamond wire is obliquely distributed and is not set parallel to the end face of the guide wheel. In this way, during the cutting process, the edge of one side of the groove body will produce friction on the conventional diamond wire, which will drive the conventional diamond wire to twist radially to improve the cutting ability. However, if the conventional diamond wire produced is wound on the guide wheel in the conventional way, the direction of the torsional force generated by the friction force of the contact surface of the guide wheel groove may be opposite to the torsional direction of the conventional diamond wire itself. At this time, the number of twisting turns of the conventional diamond wire will be offset, weakening the overall cutting force of the wire net, and causing the structural coordination to hinder each other. Summary of the invention

[0005] Based on this, it is necessary to provide a method for improving the cutting force of the diamond wire in order to solve the problem that the torsion direction of the diamond wire after being assembled on the guide wheel is opposite to the torsion direction caused by friction with the guide wheel groove, and to provide a method for improving the cutting force of the diamond wire for use in a diamond wire production system and a diamond wire cutting system. The diamond wire production system includes a processing system for combining a mother bar of the diamond wire with a coating and a production pulley, and the production pulley is provided with a first groove for guiding the mother bar to enter the processing system; the diamond wire cutting system includes a winding pulley provided with a second groove and a guide wheel provided with a third groove, and the method includes:

[0006] The busbar is introduced into the processing system through the first groove of the production pulley, and the installation parallelism between the production pulley and the busbar is controlled to obtain the finished diamond wire;

[0007] The finished diamond wire is wound through the second groove of the winding pulley to the third groove obliquely opened on the guide wheel to form a wire net between the guide wheels;

[0008] Obtaining the rotation direction of the guide wheel, and determining the first torsion direction caused by the unilateral friction of the side wall of the third groove on the finished diamond wire;

[0009] The inclination of the winding pulley is adjusted to make the side wall of the second groove rub against the finished diamond wire on one side, ensuring that the second torsion direction generated by the side wall of the second groove on the finished diamond wire is in the same direction as the first torsion direction.

[0010] In one embodiment, before the busbar is introduced into the processing system through the first groove of the production pulley, and the installation parallelism of the production pulley and the busbar is controlled to reduce the friction of the first groove on the busbar, reduce the number of twisting turns of the diamond wire coating, and obtain the finished diamond wire, it also includes:

[0011] The preset rotation direction of the guide wheel and the inclination direction of the third groove on the guide wheel are obtained, the direction of the torsional friction force on the diamond wire after installation is pre-determined, and the torsional direction of the diamond wire coating is determined according to the direction of the torsional friction force.

[0012] In one embodiment, the inclination of the winding pulley is adjusted so that the side wall of the second groove rubs against the finished diamond wire on one side, ensuring that the second torsion direction generated by the side wall of the second groove on the finished diamond wire is in the same direction as the first torsion direction, including:

[0013] The contact side between the finished diamond wire and the side wall of the third groove is determined according to the first torsion direction, and the winding pulley is tilted to make the single side wall of the second groove rub against the contact side.

[0014] In one of the embodiments, the busbar is introduced into the processing system through the first groove of the production pulley, and the installation parallelism of the production pulley and the busbar is controlled to reduce the friction of the first groove on the busbar, reduce the number of torsion turns of the diamond wire coating, and obtain the finished diamond wire, including: adjusting the relative parallelism of the production pulley and the busbar after observing the plane of the production pulley through a laser positioning instrument.

[0015] In one of the embodiments, the busbar is introduced into the processing system through the first groove of the production pulley, and the installation parallelism of the production pulley and the busbar is controlled to reduce the friction of the first groove on the busbar, reduce the number of twisting turns of the diamond wire coating, and obtain the finished diamond wire, including: controlling the number of twisting turns of the finished diamond wire coating before winding within 2 to 5 turns.

[0016] In one of the embodiments, the number of twists of the finished diamond wire coating before winding is controlled within 2 to 5 turns, including: attaching a fixing rubber strip to the busbar, and obtaining the number of twists of the coating by observing the number of rotations of the fixing rubber strip.

[0017] In one of the embodiments, the finished diamond wire is wound through the second groove of the winding pulley onto the third groove of the guide wheel to form a wire mesh between the guide wheels, including: adjusting the winding interval of the finished diamond wire between the third grooves to reduce the gap of the wire mesh.

[0018] A diamond wire production system is applicable to the above-mentioned method for improving the cutting capability of thin diamond wire, comprising: a processing system for combining a mother bar of the diamond wire with a coating and a production pulley, wherein the production pulley is provided with a first groove for guiding the mother bar to enter the processing system; the first groove is provided as a V-shaped groove, and the coating is provided as a metal nickel coating.

[0019] A diamond wire cutting system is applicable to the above-mentioned method for improving the thinning diamond wire cutting capability, comprising: a winding pulley provided with a second groove and a guide wheel provided with a third groove; the second groove and the third groove are both provided as V-shaped grooves.

[0020] A diamond wire is made by the method for improving the cutting force of the diamond wire.

[0021] Relative to the above background technology, the present application provides a method for improving the cutting force of diamond wire, including: introducing the busbar into the processing system through the first groove of the production pulley, and controlling the installation parallelism of the production pulley and the busbar, reducing the friction of the first groove on the busbar, reducing the number of twisting turns of the diamond wire coating, and obtaining the finished diamond wire; winding the finished diamond wire through the second groove of the winding pulley to the third groove obliquely opened on the guide wheel, forming a wire mesh between the guide wheels; obtaining the rotation direction of the guide wheel, and judging the first twisting direction generated by the unilateral friction of the side wall of the third groove on the finished diamond wire at this time; adjusting the inclination of the winding pulley so that the side wall of the second groove unilaterally rubs with the finished diamond wire, ensuring that the second twisting direction generated by the side wall of the second groove on the finished diamond wire is in the same direction as the first twisting direction. It can be seen that in practical applications, the method of the present application can improve the cutting ability of the diamond wire in the cutting operation by twisting the higher strength diamond wire in the same direction as the guide twisting direction of the guide wheel.

[0022] The present application also provides a diamond wire production system, a diamond wire cutting system and diamond wire, all of which have the above-mentioned beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a flow chart of a specific implementation of a method for improving the thinning diamond wire cutting capability provided in an embodiment of the present application.

[0024] FIG2 is a schematic diagram of the installation of the finished diamond wire wound onto a guide wheel provided in an embodiment of the present application.

[0025] FIG. 3 is a schematic diagram of the installation of a conventional diamond wire wound onto a guide wheel in the prior art.

[0026] Figure Number:

[0027] 1-1-pay-off wheel, 1-2-take-up wheel, 2-1-conventional guide wheel, 3-1-conventional diamond wire,

[0028] 1-winding pulley, 2-guide wheel, 3-finished diamond wire,

[0029] A-first twisting direction, B-second twisting direction. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0031] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0032] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0034] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0036] Referring to Figures 1 and 2, Figure 1 shows a flowchart of a specific implementation method of the method for improving the cutting ability of thinned diamond wire provided in an embodiment of the present application, and Figure 2 shows a schematic diagram of the installation of the finished diamond wire wound onto a guide wheel provided in an embodiment of the present application, including a method for improving the cutting force of the diamond wire, which is used in a diamond wire production system and a diamond wire cutting system. The diamond wire production system includes a production pulley and a processing system for combining the mother bar of the diamond wire with a coating. The production pulley is provided with a first groove for guiding the mother bar to enter the processing system; the diamond wire cutting system includes a winding pulley 1 provided with a second groove and a guide wheel 2 provided with a third groove. The method includes:

[0037] Step S1: introducing the busbar into the processing system through the first groove of the production pulley, and controlling the installation parallelism between the production pulley and the busbar to obtain a finished diamond wire 3.

[0038] During the production stage, the busbar extends from the outlet end of the busbar and is first placed on the first groove of the production pulley, and then guided by the production pulley into the processing system. During this process, the side wall of the first groove will inevitably contact the busbar, causing the busbar to twist to one side. The twisted busbar enters the processing system and moves in a directional manner in the processing system. At the same time, the outer layer of the busbar is electroplated to form a coating to produce a finished diamond wire. By controlling the installation parallelism of the production pulley and the busbar, the unilateral friction of the first groove on the busbar can be reduced, the number of twisting turns of the busbar can be reduced, and the diamonds in the electroplating process can be electroplated onto the busbar to produce uniformity, thereby obtaining a finished diamond wire with stronger cutting ability 3.

[0039] Among them, the specific structure of the processing system and its electroplating coating on the busbar belong to the basic technology in the field of diamond wire production, which will not be elaborated in this article.

[0040] Step S2: Winding the finished diamond wire 3 through the second groove of the winding pulley 1 onto the third groove obliquely opened on the guide wheel 2 to form a wire mesh between the guide wheels 2 .

[0041] After the finished diamond wire 3 is produced, it will be guided by the second groove of the winding pulley 1 and wound onto the guide wheel 2 in sequence. A third groove extending spirally along the circumference is provided on the circumference of the guide wheel 2, which is inclined relative to its own end face. After sequential winding, a wire net will be formed between the two guide wheels 2. The guide wheel 2 with the wire net installed is transported to the diamond wire cutting system.

[0042] Among them, the technology of winding the diamond wire onto the guide wheel through a pulley is a common technology in the field of diamond wire cutting and will not be elaborated in this article.

[0043] Step S3: Obtain the rotation direction of the guide wheel 2 to determine the first torsion direction A generated by the unilateral friction of the third groove side wall on the finished diamond wire 3 at this time.

[0044] Determine the rotation direction of the guide wheel 2, and judge the direction of the friction force obtained by the finished diamond wire 3 contacting the side of the third groove after winding according to its rotation direction. The single-side side wall of the third groove will continue to rub the finished diamond wire 3 during the rotation of the guide wheel 2 to twist it toward the first torsion direction A.

[0045] Among them, because the third groove is an inclined groove, during use, the diamond wire will inevitably contact and generate friction with the side wall of one side of the groove. The specific configuration method can refer to the existing technology and will not be elaborated in this article.

[0046] Step S4: adjusting the inclination of the winding pulley 1 to make the side wall of the second groove rub against the finished diamond wire 3 on one side, ensuring that the second torsion direction B generated by the side wall of the second groove on the finished diamond wire 3 is in the same direction as the first torsion direction A.

[0047] Adjust the inclination of the winding pulley 1 closest to the guide wheel 2 so that the single-side side wall of the second groove of the winding pulley 1 rubs against the finished diamond wire 3, ensuring that the friction force of the second groove causes the finished diamond wire 3 to twist in the second torsion direction B, and ensuring that the second torsion direction B is in the same direction as the first torsion direction A, thereby enhancing the cutting ability of the diamond wire.

[0048] Referring to Figure 3, Figure 3 is a schematic diagram of the installation of conventional diamond wire winding onto a guide wheel in the prior art, which is used for comparison with the present application. It can be seen that when the thinned diamond wire is used in the prior art, the conventional diamond wire 3-1 is discharged from the pay-off wheel 1-1 to the conventional guide wheel 2-1. The conventional guide wheel 2-1 is provided with an inclined groove, and the wire is obliquely wound between the two conventional guide wheels 2-1 to form a wire net. The wire net is used to cut materials such as silicon wafers, and finally the wire is turned out from the conventional guide wheel 2-1 and returned to the take-up wheel 1-2. During the cutting process, the conventional guide wheel 2-1 rotates in a directional manner to cause the conventional diamond wire 3-1 to move in a directional manner. This structure cannot control the twisting direction of the conventional diamond wire 3-1 during the cutting process to be consistent with the twisting direction caused by the friction of the conventional guide wheel 2-1 after using the thinned diamond wire.

[0049] It should be noted that this method is a specific improvement based on the current application scenarios of diamond wire after thinning. After thinning, diamond wire is more susceptible to interference forces from all directions. This method uses the influence of interference forces to turn interference into improvements, thereby assisting in reducing costs and increasing efficiency and improving cutting force of diamond wire cutting. After adjustment according to the above method, the cutting capacity of diamond wire has increased overall. The experimental results show that the qualified rate of silicon wafers cut using the above-mentioned same-direction twisting diamond wire method has increased by 1%; and the abnormal breakage rate in the diamond wire production process has decreased by 20%.

[0050] In a specific embodiment, before the step S1 of introducing the busbar into the processing system through the first groove of the production pulley, and controlling the installation parallelism between the production pulley and the busbar, reducing the friction of the first groove on the busbar, and reducing the number of twisting turns of the diamond wire coating, the finished diamond wire 3 is obtained, and the following steps are further included:

[0051] Step S01, obtain the preset rotation direction of the guide wheel 2 and the inclination direction of the third groove on the guide wheel 2, pre-judge the direction of the torsional friction force on the diamond wire after installation, and determine the torsional direction of the diamond wire coating according to the direction of the torsional friction force.

[0052] Before producing the diamond wire, first observe the inclined setting direction of the third groove on the guide wheel 2, and pre-estimate the rotation scenario of the diamond wire in a preset direction after being installed on the guide wheel 2. Determine which side of the third groove will contact the friction diamond wire after installation and generate a torsional friction force on it. It is also possible to infer the possible torsional direction of the diamond wire after installation, and control the torsional direction of the diamond wire during production according to the possible torsional direction of the diamond wire after installation. Make the torsional direction of the diamond wire itself consistent with the torsional direction of the diamond wire after entering the cutting system. The consistency between the torsional direction of the diamond wire itself and the torsional direction during cutting will enhance the cutting ability and optimize the cutting effect. The finished diamond wire 3 produced in this way has the advantages over the conventional diamond wire 3-1 in that the diamonds in the coating part are evenly distributed, the cutting ability is strong, and pre-preparation is made before the cutting work to ensure the consistency of the torsional direction. The difficulty of installation and adaptation is simplified.

[0053] In a specific embodiment, for step S4, adjusting the inclination of the winding pulley 1 so that the side wall of the second groove rubs against the finished diamond wire 3 on one side, ensuring that the second torsion direction B generated by the side wall of the second groove on the finished diamond wire 3 is in the same direction as the first torsion direction A, comprises:

[0054] The contact side between the finished diamond wire 3 and the side wall of the third groove is determined according to the first twisting direction A, and the winding pulley 1 is tilted so that the single side wall of the second groove rubs against the contact side.

[0055] Here, the friction side between the finished diamond wire 3 and the side wall of the third groove is called the contact side. In fact, the diamond wire is in a state of rotating along its own radial direction during the entire cutting process. Therefore, the contact side is only a concept used to determine the torsion direction of the diamond wire. The contact side is the side of the diamond wire 3 that is close to the side wall of the third groove. Through the contact side, it can be reversely deduced which side wall of the second groove needs to contact the diamond wire to obtain the required second torsion direction B, and further reversely deduce the inclination direction of the winding pulley 1 relative to its vertical plane.

[0056] In one embodiment of the present application, the first torsion direction A generated by the finished diamond wire 3 is a direction of clockwise rotation relative to its own extension direction. At this time, it can be inferred that the winding pulley 1 needs to be tilted until the finished diamond wire 3 can also produce an effect of clockwise rotation along its extension direction, that is, at this time, the single side wall of the second groove contacts the finished diamond wire 3 to achieve the above-mentioned torsion effect.

[0057] In a specific embodiment, for step S1, the busbar is introduced into the processing system through the first groove of the production pulley, and the installation parallelism between the production pulley and the busbar is controlled to reduce the friction of the first groove on the busbar, reduce the number of twisting turns of the diamond wire coating, and obtain the finished diamond wire 3, including: adjusting the relative parallelism between the production pulley and the busbar after observing the plane of the production pulley through a laser positioning instrument.

[0058] After the busbar is installed on the production pulley, a laser positioning instrument is used to observe the production pulley plane and fine-tune the production pulley to reduce the parallel difference between the busbar and the production pulley, thereby reducing the friction of the first groove on the busbar and reducing the number of twisting turns of the busbar. After entering the processing system, the electroplating of the coated diamond is more uniform, the breakage rate of the diamond wire is reduced, and the cutting force is enhanced.

[0059] The specific operational details of the above-mentioned use of a laser positioning instrument to control the parallelism of the production pulley and the busbar installation can be referred to the existing technology. It only needs to reduce the contact friction between the first groove and the busbar, and this article will not elaborate on it.

[0060] In a specific embodiment, the busbar is introduced into the processing system through the first groove of the production pulley, and the installation parallelism of the production pulley and the busbar is controlled to reduce the friction of the first groove on the busbar, reduce the number of twisting turns of the diamond wire coating, and obtain the finished diamond wire 3, including: controlling the number of twisting turns of the finished diamond wire 3 coating before winding within 2 to 5 turns.

[0061] Practical application shows that when the twisting number of the diamond wire coating is reduced by the above method and the twisting number is controlled within 2 to 5 turns, the diamond coating effect on the diamond wire busbar is optimal and the finished diamond wire 3 is most suitable for cutting.

[0062] Furthermore, it is known from practical application that the effect of enhancing the output of the finished diamond wire 3 can be achieved by controlling the number of twisting turns of the diamond wire coating within 0 to 5 turns using the above method.

[0063] In a specific embodiment, the number of twisting turns of the finished diamond wire 3 coating before winding is controlled within 2 to 5 turns, including: using a rubber strip observation method to observe the number of twisting turns of the diamond wire, the rubber strip observation method is specifically: before the busbar enters the processing system, a fixed rubber strip is attached to the above busbar, from the beginning to the end of the electroplating coating, the rotation direction and number of turns of the fixed rubber strip are observed to obtain the number of twisting turns of the above coating.

[0064] In a specific embodiment, the finished diamond wire 3 is wound through the second groove of the winding pulley 1 to the third groove obliquely opened on the guide wheel 2 to form a wire mesh between the guide wheels 2, including: adjusting the winding interval of the finished diamond wire 3 between the third grooves, thereby reducing the gap of the wire mesh.

[0065] Referring to the arrangement method of the inclined grooves on the guide wheel 2 in the prior art, the third groove on the guide wheel 2 is usually presented as a plurality of continuous inclined annular grooves. By manually adjusting the installation interval of the annular grooves during winding, the offset of the diamond wire can be adjusted, thereby reducing the wire mesh gap. After the wire mesh is reduced, thinner materials can be cut.

[0066] A diamond wire production system, suitable for the above-mentioned method of improving the cutting ability of thin diamond wire, comprising: a processing system for combining the mother bar of the diamond wire with the coating and a production pulley, the production pulley is provided with a first groove for guiding the mother bar to enter the processing system; the first groove is provided as a V-shaped groove, and the coating is provided as a metal nickel coating. The above-mentioned groove is provided as a V-shaped groove, which is more convenient for contact friction effect on each torsion stage of the diamond wire, and avoids interference of hard structures other than friction due to the uneven structure of the groove side wall. The above-mentioned coating is provided as a metal nickel coating. The nickel coating has good wear resistance and strong bonding ability with the mother bar of the diamond wire, which can ensure its cutting ability while reducing production costs.

[0067] A diamond wire cutting system is applicable to the above-mentioned method for improving the thinning diamond wire cutting capability, comprising: a winding pulley 1 provided with a second groove and a guide wheel 2 provided with a third groove; the second groove and the third groove are both configured as V-shaped grooves; similarly, configuring the grooves as V-shaped grooves makes it easier to perform contact friction on each torsion stage of the diamond wire, thereby avoiding interference of hard structures other than friction due to the unevenness of the groove side wall structure.

[0068] A diamond wire is made by the method for improving the cutting ability of a thinned diamond wire.

[0069] The diamond wire produced by the above method can reduce the abnormal wire breakage rate while ensuring uniform distribution of diamonds, reduce the risk of production defects of thin-wire diamond wire, and ensure its cutting performance.

[0070] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A method for improving the cutting force of a diamond wire, for use in a diamond wire production system and a diamond wire cutting system, wherein the diamond wire production system comprises a processing system for combining a mother bar of the diamond wire with a coating and a production pulley, wherein the production pulley is provided with a first groove for guiding the mother bar to enter the processing system; the diamond wire cutting system comprises a winding pulley (1) provided with a second groove and a guide wheel (2) provided with a third groove, wherein: The method comprises: Leading the busbar into the processing system through the first groove of the production pulley, and controlling the installation parallelism between the production pulley and the busbar to obtain a finished diamond wire (3); Winding the finished diamond wire (3) through the second groove of the winding pulley (1) onto the third groove obliquely opened on the guide wheel (2), so as to form a wire net between the guide wheels (2); Obtaining the rotation direction of the guide wheel (2) to determine the first torsion direction generated by the unilateral friction of the side wall of the third groove on the finished diamond wire (3); The inclination of the winding pulley (1) is adjusted so that the side wall of the second groove rubs against the finished diamond wire (3) on one side, ensuring that the second twisting direction generated by the side wall of the second groove on the finished diamond wire (3) is in the same direction as the first twisting direction.

2. The method for improving the cutting capability of a thinned diamond wire according to claim 1, characterized in that: Before the busbar is introduced into the processing system through the first groove of the production pulley, and the installation parallelism between the production pulley and the busbar is controlled to reduce the friction of the first groove on the busbar, reduce the number of twisting turns of the diamond wire coating, and obtain the finished diamond wire (3), the method further includes: The preset rotation direction of the guide wheel (2) and the inclination direction of the third groove on the guide wheel (2) are obtained, the direction of the torsional friction force to which the diamond wire is subjected after installation is pre-determined, and the torsional direction of producing the diamond wire coating is determined according to the direction of the torsional friction force.

3. The method for improving the cutting force of diamond wire according to claim 1, characterized in that: The inclination of the winding pulley (1) is adjusted so that the side wall of the second groove rubs against the finished diamond wire (3) on one side, ensuring that the second twisting direction generated by the side wall of the second groove on the finished diamond wire (3) is in the same direction as the first twisting direction, comprising: The contact side of the finished diamond wire (3) and the side wall of the third groove is determined according to the first twisting direction, and the winding pulley (1) is tilted so that the side wall of one side of the second groove rubs against the contact side.

4. The method for improving the cutting force of diamond wire according to claim 1, characterized in that: The busbar is introduced into the processing system through the first groove of the production pulley, and the installation parallelism between the production pulley and the busbar is controlled to reduce the friction of the first groove on the busbar, reduce the number of twisting turns of the diamond wire coating, and obtain a finished diamond wire (3), including: adjusting the relative parallelism between the production pulley and the busbar after observing the plane of the production pulley through a laser positioning instrument.

5. The method for improving the cutting force of diamond wire according to claim 4, characterized in that: The busbar is introduced into the processing system through the first groove of the production pulley, and the installation parallelism between the production pulley and the busbar is controlled to reduce the friction of the first groove on the busbar, reduce the number of twisting turns of the diamond wire coating, and obtain a finished diamond wire (3), including: controlling the number of twisting turns of the finished diamond wire (3) coating before winding within 2 to 5 turns.

6. The method for improving the cutting force of diamond wire according to claim 5, characterized in that: The number of twisting turns of the coating of the finished diamond wire (3) before winding is controlled within 2 to 5 turns, comprising: attaching a fixing rubber strip to the busbar, and obtaining the number of twisting turns of the coating by observing the number of turns of the fixing rubber strip.

7. The method for improving the cutting force of diamond wire according to claim 1, characterized in that: The finished diamond wire (3) is wound onto the third groove obliquely opened on the guide wheel (2) through the second groove of the winding pulley (1) to form a wire net between the guide wheels (2), comprising: adjusting the winding interval of the finished diamond wire (3) between the third grooves, thereby reducing the gap of the wire net.

8. A diamond wire production system, characterized in that: The method for improving the cutting capability of thinned diamond wire applicable to claims 1-7 above comprises: a processing system for combining the mother bar of the diamond wire with the coating and a production pulley, wherein the production pulley is provided with a first groove for guiding the mother bar to enter the processing system; the first groove is provided as a V-shaped groove, and the coating is provided as a metal nickel coating.

9. A diamond wire cutting system, characterized in that: The method for improving the cutting capability of a thinned diamond wire as described in claims 1 to 7 above comprises: a winding pulley (1) provided with a second groove and a guide wheel (2) provided with a third groove; the second groove and the third groove are both provided as V-shaped grooves.

10. A diamond wire, characterized in that: The method for improving the cutting force of diamond wire is made according to the above claims 1-7.

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