System and method for setting transfer range of traverse for setting stroke in multi-wire saw process

Abstract

The present invention relates to a system for setting the transfer range of a traverse for setting a stroke in a multi-wire saw process, the system comprising: a bobbin on which a wire is wound; a traverse provided on the upper portion of the bobbin and moving horizontally to vertically unwind the wire wound on the bobbin; and a dancer spaced apart from the traverse by a predetermined distance to maintain the tension of the wire during unwinding from the bobbin, wherein, when the wire is wound on the bobbin, the traverse is horizontally moved to maintain the vertical direction of the wire, when the wire is located at one end portion and the other end portion of the bobbin, the dancer is moved by a predetermined angle toward the traverse by the resistance generated at the one end portion and the other end portion of the bobbin by the wire, points at which the movement of the dancer by the predetermined angle occurred are stored as a starting point and an end point at which the wire is unwound from the bobbin, and a stroke range in which the wire is unwound from the bobbin may be set through data of both points.

Description

Traverse travel range setting system and setting method for stroke setting in multi-wire saw process

[0001] The present invention relates to a system for setting the travel range of a traverse for stroke setting in a multi-wire saw process and a method for setting the same, and in a multi-wire saw (MWS) process, to a system for setting the travel range of a traverse for stroke setting in a multi-wire saw process in which the range of an accurate stroke of a bobbin can be set and a method for setting the same.

[0002] The MWS (multi-wire saw) machine forms a web by winding wires of a certain diameter at regular intervals around the surface of a rotating body. When the rotating body rotates at high speed, kinetic energy is generated in the web, which is then used to create cutting force. When a solid material, such as a circle or square, is brought close to the web layer where the cutting force has been generated at a constant speed, the product (the solid material, such as a circle or square) is cut to a certain thickness by the cutting force. By continuously passing the product through the web, wafer products of a certain thickness can be mass-produced.

[0003] In the past, cutting power was created by continuously applying a cutting agent with hard particles called slurry to the wire, but recently, a method of coating the wire itself with diamond and using this to cut products has been widely used.

[0004] As described above, to form a web, wire must be wound at regular intervals around the surfaces of multiple rotating bodies (hereinafter referred to as WGRs). The wire used in this process is wound around a metal cylinder called a bobbin and supplied to the user. Multi-wire saw equipment uses bobbins that are installed as is.

[0005] A bobbin, around which wire is wound, has a defined area for the wire's winding points. This area of ​​the bobbin around which the wire is wound is called a stroke, and each stroke has a starting point and an ending point.

[0006] Multiwire saws are equipped with a traverse to transport the wire. The traverse tracks the dissolution point of the wire as it winds around the bobbin, ensuring that the wire is always dissipated perpendicular to the bobbin.

[0007] Additionally, the multi-wire saw device is equipped with a dancer to maintain constant wire tension. The dancer moves away from or toward the traverse when tension in the wire fluctuates, maintaining the wire tension.

[0008] As described above, the process of unwinding wire onto a bobbin has a starting point and an ending point, and the direction of the wire's unwinding changes at these points. Traverses must be precisely timed at these points to minimize wire damage and ensure stable processing. If the timing of the unwinding direction at the starting and ending points is not precisely aligned, friction may occur between the wire and the bobbin's cross-sections, potentially resulting in wire damage.

[0009] Therefore, the multi-wire saw device must measure the positions of the start and end points of the stroke and input them into the multi-wire saw device. For example, the operator can input them manually by measuring them using a measuring device (such as a ruler). Afterwards, the multi-wire saw device must be operated to release the wire from the bobbin, and when the traverse changes direction from the point where it was initially input, the condition of the wire must be checked and the position must be corrected manually for a second time. In general, the pitch, the interval at which the wire is wound on the bobbin, is usually around 0.3 mm, and the thickness of the wire is around 40 um, so the required accuracy of the actual stroke is required to be 0.1 mm.

[0010] However, when manually measuring and entering the positions of the start and end points of a stroke, there is a problem that it is difficult for the operator to meet the required level of accuracy in the primary input process. For example, it is difficult to meet the required 0.1 mm when measuring by the operator. In addition, after completing the primary manual entry, a secondary process of manually correcting the position by checking the condition of the wire when the direction changes from the primary input point is essential. However, human error is inevitable during both the primary input and the secondary manual position correction process, and there is a possibility of wire damage during the secondary process, and additional work time is required, making it difficult to use the equipment efficiently.

[0011] Furthermore, the secondary calibration process visually observes the wire's path around the end point of the stroke (the point where it changes direction) during the brief moment the equipment rotates at high speed. Consequently, accuracy varies depending on the personnel performing the secondary calibration process. Furthermore, maintaining a consistent and objective state of the process becomes difficult, making it difficult to track and resolve any defects that may arise in the future.

[0012] Therefore, as the wire is dismantled and the traverse passes the start and end points of the stroke, the dancer's reaction is elicited. Using this principle, the start and end points of the stroke can be identified and stored. Using these stored values, more precise stroke settings are possible.

[0013] Therefore, in a multi-wire saw (MWS) process, there is a need for a system for setting the travel range of a traverse for stroke setting in a multi-wire saw process that can set the exact stroke range of a bobbin, and a setting method thereof.

[0014] (Prior art literature)

[0015] Korean Patent Publication No. 10-2005-0023746 (March 10, 2005)

[0016] The problem to be solved by the present invention is that, in a multi-wire saw (MWS) process, when a wire passes one end point of a bobbin, a point is generated where the traverse moves the dancer at a certain angle due to resistance generated by the wall of the bobbin, and the position immediately before the point where the dancer moves more than the set angle is set and stored as the start point and end point of the bobbin, so that the exact stroke range of the bobbin can be set based on these start points and end points, and a setting method thereof is provided for setting the travel range of the traverse for stroke setting in a multi-wire saw process.

[0017] The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the description below.

[0018] In a multi-wire saw process according to an embodiment of the present invention for solving a problem, a system for setting the travel range of a traverse for stroke setting is provided.

[0019] bobbin with wire wound around it;

[0020] A traverse provided on the upper part of the bobbin, which moves horizontally and vertically releases the wire wound on the bobbin; and

[0021] A dancer is included at a predetermined distance from the above traverse to maintain the tension of the wire when the bobbin is unwound,

[0022] When the wire is wound around the bobbin, the traverse moves horizontally to maintain the vertical direction of the wire, and when the wire is positioned at one end of the bobbin and the tile end, the dancer moves at a predetermined angle toward the traverse due to resistance generated at one end of the bobbin and the tile end by the wire.

[0023] The point at which the dancer's predetermined angular movement occurs is stored as the start point and end point at which the wire is released onto the bobbin, and the stroke range at which the wire is released onto the bobbin can be set through the data of both points.

[0024] A center detection unit for detecting the center of the above traverse; and

[0025] It may include a control unit that controls the left and right movement of the traverse according to detection by the center detection unit.

[0026] The device may further include a dancer variation detection unit that detects the angular variation of the dancer caused by the resistance of the traverse generated at both ends of the bobbin when the traverse moves.

[0027] The control unit receives the detected detection value of the dancer fluctuation detection unit, compares the fluctuation range of the dancer according to the detected detection value with a set fluctuation range, determines one end of the bobbin and the tile end according to the comparison value, and can set the range of the stroke of the bobbin.

[0028] When the fluctuation range of the dancer is greater than the fluctuation range set in the control unit, the position immediately before the position of the traverse corresponding to the point where the fluctuation range of the dancer is greater than the fluctuation range set in the control unit is set in the control unit as the starting point of the bobbin, that is, one end, or / and the end point, that is, the tile end.

[0029] The stroke range of the bobbin can be set through one end and one end of the bobbin.

[0030] The position immediately preceding the above traverse can be set to an end point by setting a value of +1 from the traverse position when the direction of movement of the traverse is to the left, and can be set to a value of -1 from the position of the traverse when the direction of movement of the traverse is to the right.

[0031] The above dancer variation detection unit can detect the variation range of the dancer through changes in position data mounted on the servo motor of the dancer.

[0032] The above dancer fluctuation detection unit can detect the fluctuation range of the dancer through a position detection sensor mounted on the dancer.

[0033] It may further include a button member for operating the above traverse.

[0034] In addition, a method for setting the transfer range of a traverse for stroke setting in a multi-wire saw process according to an embodiment of the present invention for solving a problem is provided.

[0035] Steps to drive the traverse;

[0036] A step of determining whether the above traverse is within the center range;

[0037] A step of moving the above traverse while winding the wire onto the bobbin;

[0038] A step of determining the angular variation range of a dancer connected to the above traverse;

[0039] A step of storing the position of one end or one end of the bobbin according to the judgment of the angular variation range of the dancer; and

[0040] It may include a step of setting the stroke range of the bobbin by the position of one end or one end of the stored bobbin.

[0041] In the step of determining whether the position of the above traverse is within the center range,

[0042] If the position of the traverse is not the center, a step of determining where the position of the traverse is within the center range may be further included.

[0043] After determining where the location of the above traverse is centered around the above center range,

[0044] The step of moving the traverse to the right or left by a distance from the center range depending on the position of the traverse to the left or right of the center range and the distance from the center range may include moving the traverse to the center range.

[0045] In the step of judging the range of angular variation of the dancer above,

[0046] A step of the control unit receiving the angular variation range of the dancer and comparing the angular variation range of the dancer with the variation range set in the control unit;

[0047] A step of comparing the variation range of the dancer with the variation range set in the control unit and moving the traverse in the left or right direction while winding the wire when the angular variation range of the dancer is less than or equal to the variation range set in the control unit; and

[0048] The step of comparing the angular variation of the dancer with the variation set in the control unit and, if the angular variation of the dancer is greater than or equal to the variation set in the control unit, storing the end point of the bobbin according to the position of the traverse may be included.

[0049] The step of saving the end point of the bobbin according to the position of the above traverse is:

[0050] A step of determining the direction of movement of the traverse after determining the range of angular variation of the dancer; and

[0051] Depending on the direction of movement of the traverse, a step of determining whether the end point of the bobbin is one end of the bobbin or the tile end of the bobbin and whether both end points of the bobbin have been completely stored may be included.

[0052] In the step of storing the position of one end or one end of the bobbin based on the judgment of the angular fluctuation range of the dancer, the one end or one end of the bobbin can be set to a position immediately before the point where the fluctuation range of the dancer becomes greater than the fluctuation range set by the control unit.

[0053] The position immediately before the traverse may be stored as an end point of one end of the bobbin when the direction of movement of the traverse is left, depending on whether the traverse moves left or right, with a value of +1 at the position of the traverse, and when the direction of movement of the traverse is right, with a value of -1 at the position of the traverse, the end point of the tile end of the bobbin may be set.

[0054] In the step of determining whether both the end point of one end of the above traverse and the end point of the tile are saved,

[0055] If only one of the end points of the traverse or the tile end is stored, the step of reversing the direction of movement of the traverse is further included.

[0056] After reversing the direction of movement of the above traverse, the process can move to a step of determining the range of movement of the dancer.

[0057] Other specific details of the present invention are included in the detailed description and drawings.

[0058] According to embodiments of the present invention, at least the following effects are achieved.

[0059] As the wire is wound around the bobbin, the dancer slowly moves the traverse until a reaction occurs, and the resistance caused by the contact with the wall surface generated as the wire passes a point on either side of the bobbin moves the dancer linked to the traverse at a certain angle, and the position immediately preceding the point according to the change in the certain angle of the dancer can be stored as the start or end point of winding the wire on the bobbin, so that the start and end points of the wire wound on the bobbin can be accurately determined, and by accurately determining the two points of the wire wound on the bobbin, there is an advantage in that the stroke range of the bobbin on which the wire is wound can be accurately set.

[0060] In addition, since the stroke range of the bobbin can be set accurately, there is an advantage in that the stroke setting can be performed quickly and accurately even after replacing the bobbin, and since the stroke setting of the bobbin can be set quickly and accurately, there is an advantage in that not only time can be reduced but also production efficiency can be improved.

[0061] The effects according to the present invention are not limited to those exemplified above, and more diverse effects are included in this specification.

[0062] FIG. 1 is a schematic drawing of a system for setting the transfer range of a traverse for stroke setting in a multi-wire saw process according to one embodiment of the present invention.

[0063] FIG. 2 is a drawing schematically showing an angular deformation of a dancer caused by movement of a traverse when a wire comes into contact with at least one end of a bobbin in a system for setting a transfer range of a traverse for stroke setting in a multi-wire saw process according to one embodiment of the present invention.

[0064] FIG. 3 is a schematic block diagram of a configuration for setting the stroke range of a bobbin in a system for setting the transfer range of a traverse for stroke setting in a multi-wire saw process according to one embodiment of the present invention.

[0065] FIG. 4 is a block diagram of a configuration for setting the stroke range of a bobbin in a system for setting the transfer range of a traverse for stroke setting in a multi-wire saw process according to one embodiment of the present invention.

[0066] FIG. 5 is a schematic block diagram for driving a traverse in a system for setting a travel range of a traverse for stroke setting in a multi-wire saw process according to one embodiment of the present invention.

[0067] FIG. 6 is a configuration diagram for driving a traverse in a system for setting a travel range of a traverse for stroke setting in a multi-wire saw process according to one embodiment of the present invention.

[0068] FIG. 7 is a schematic flowchart of a method for setting the transfer range of a traverse for stroke setting in a multi-wire saw process according to one embodiment of the present invention.

[0069] The advantages and features of the present invention, and the methods for achieving them, will become clearer with reference to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. These embodiments are provided only to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Like reference numerals designate like elements throughout the specification.

[0070] Accordingly, in some embodiments, well-known process steps, well-known structures, and well-known techniques are not specifically described to avoid obscuring the present invention.

[0071] The terminology used herein is for the purpose of describing embodiments only and is not intended to be limiting of the present invention. In this specification, the singular also includes the plural unless specifically stated otherwise. As used herein, the terms "comprises" and / or "comprising" are used to mean that they do not exclude the presence or addition of one or more other components, steps, operations, and / or elements other than the mentioned components, steps, operations, and / or elements. In addition, "and / or" includes each and every combination of one or more of the mentioned items.

[0072] In addition, the embodiments described in this specification will be described with reference to cross-sectional drawings and / or schematic drawings, which are ideal examples of the present invention. Accordingly, the form of the examples may be modified due to manufacturing technology and / or tolerances, etc. Accordingly, the embodiments of the present invention are not limited to the specific forms illustrated, but also include changes in form resulting from the manufacturing process. In addition, each component in each drawing illustrated in the present invention may be illustrated to some extent enlarged or reduced for convenience of explanation. Like reference numerals refer to like components throughout the specification.

[0073] Hereinafter, the present invention will be described with reference to drawings for explaining an auto shift system (100) for securing a slope processing area for subsequent processing according to embodiments of the present invention.

[0074] FIG. 1 is a schematic drawing of a system for setting the transfer range of a traverse for stroke setting in a multi-wire saw process according to one embodiment of the present invention.

[0075] FIG. 2 is a drawing schematically showing an angular deformation of a dancer caused by movement of a traverse when a wire comes into contact with at least one end of a bobbin in a system for setting a transfer range of a traverse for stroke setting in a multi-wire saw process according to one embodiment of the present invention.

[0076] FIG. 3 is a schematic block diagram of a configuration for setting the stroke range of a bobbin in a system for setting the transfer range of a traverse for stroke setting in a multi-wire saw process according to one embodiment of the present invention.

[0077] FIG. 4 is a block diagram of a configuration for setting the stroke range of a bobbin in a system for setting the transfer range of a traverse for stroke setting in a multi-wire saw process according to one embodiment of the present invention.

[0078] FIG. 5 is a schematic block diagram for driving a traverse in a system for setting a travel range of a traverse for stroke setting in a multi-wire saw process according to one embodiment of the present invention.

[0079] FIG. 6 is a configuration diagram for driving a traverse in a system for setting a travel range of a traverse for stroke setting in a multi-wire saw process according to one embodiment of the present invention.

[0080] Referring to FIGS. 1 to 6, a system (100) for setting the travel range of a traverse (120) for stroke setting in a multi-wire saw process according to an embodiment of the present invention detects the resistance generated by the contact of the wire (W) with the wall surfaces of both ends of the bobbin (110) and the resulting angle change of the dancer (130) connected to the traverse (120) while slowly moving the traverse (120) in a horizontal direction and unwinding or / and winding (hereinafter referred to as 'winding') the wire (W) on the bobbin (110), thereby accurately determining both ends of the bobbin (110) and accurately determining the points at both ends of the bobbin (110), and by accurately determining the points at both ends of the bobbin (110) according to the detection of the angle change of the dancer (130), the stroke range of the bobbin (110) can be precisely set, and accordingly, the stroke setting can be performed more quickly and accurately even after replacing the bobbin (110). It is in the ship.

[0081] To this end, a system (100) for setting the transfer range of a traverse (120) for stroke setting in a multi-wire saw process according to one embodiment of the present invention may include a bobbin (110), a traverse (120), a dancer (130), a traverse drive module (122), a traverse center detection unit (121), a dancer variation detection unit (135), a storage unit (150), and a control unit (140).

[0082] The bobbin (110) is configured to be equipped with a wire (W) to be wound. The bobbin (110) has a defined area (stroke) in which the wire (W) is wound, and the area in which the wire (W) is wound on the bobbin (110) can be referred to as a stroke. The stroke range of the wire (W) in the bobbin (110) is from one end of the bobbin (110) to the tile end, and can refer to the space between the walls provided at both ends of the bobbin (110). The two ends of the bobbin (110) are described as being fixed, but are not limited thereto, and the wall surfaces of one end of the bobbin (110) or / and the tile end can be provided to be variable, so that the stroke range of the bobbin (110) can be variable. If the stroke range of the bobbin (110) is variable according to user settings, the switching point of the winding can be accurately tracked according to the stroke range of the bobbin (110) provided in the storage unit (150) described later.

[0083] The traverse (120) can be positioned above the bobbin (110) and can be equipped to vertically wind the wire (W) wound around the bobbin (110) while moving horizontally above the bobbin (110).

[0084] The traverse (120) may further include a traverse center detection unit (121) (hereinafter referred to as “center detection unit (121)”) that detects the center of the traverse (120), and a traverse drive module (122) and a drive button (123) that move the traverse (120) in the left or right direction.

[0085] The traverse center detection unit (121) may be provided to detect the center of the traverse (120) as well as the left and right movements of the traverse (120). The detection value of the traverse center detection unit (121) may be transmitted to the control unit (140) described below. The control unit (140) may be provided to control the traverse drive module (122) according to the center value, left movement value, or right movement value of the traverse (120) applied to the control unit (140).

[0086] The traverse drive module (122) provides driving force to move the traverse (120) in the left or right direction.

[0087] The traverse (120) may be equipped with a drive button (123) for executing or terminating the driving operation of the traverse (120). The traverse (120) may be equipped to operate through a single button click of the drive button (123).

[0088] The dancer (130) may be positioned at a predetermined distance from the traverse (120), and preferably may be provided at a predetermined distance horizontally from the traverse (120) to maintain the tension of the wire (W) wound on the bobbin (110) on the traverse (120).

[0089] The dancer (130) may be equipped with a dancer variation detection unit (135) that maintains the tension of the wire (W) according to the movement of the traverse (120) and detects the angular variation of the dancer (130) by the resistance of the traverse (120) when the wire (W) comes into contact with the walls of both ends of the bobbin (110).

[0090] The angular fluctuation range detected by the dancer fluctuation detection unit (135) can be applied to the control unit (140) described later. The control unit (140) can receive the angular fluctuation range of the dancer fluctuation detection unit (135), and can compare the set value of the angular fluctuation range of the dancer (130) set in the control unit (140) with the received detection value to determine whether the traverse (120) has come into contact with one end or the tile end of the bobbin (110).

[0091] The dancer variation detection unit (135) may be equipped to detect the variation range of the dancer (130) through a change in position data mounted on the servo motor of the dancer (130). Alternatively, the dancer variation detection unit (135) may be equipped to detect the angle of the dancer (130) through a sensor such as a position detection sensor, a rotation detection sensor, or an angle detection sensor mounted on the dancer (130).

[0092] Specifically, when the wire (W) is wound around the bobbin (110), the traverse (120) can be moved in the horizontal direction to maintain the vertical direction of the wire (W). When the wire (W) is wound around the bobbin (110) by the traverse (120) and is positioned on the wall surface of one end of the bobbin (110) and the wall surface of the tile end, resistance is generated in the traverse (120) that supplies the wire (W) due to contact between the one end of the bobbin (110) and the wall surface of the tile end. When the wire (W) is wound around the bobbin (110) and the wire (W) comes into contact with the wall surface of the bobbin (110), causing resistance in the traverse (120), the resistance of the wire (W) generated in the traverse (120) is transmitted to the dancer (130), and the dancer (130) moves at a predetermined angle toward the traverse (120) due to this resistance.

[0093] When the predetermined angular movement generated from the dancer (130) exceeds the set value of the control unit (140) described later, the angular generation point of the dancer (130) is stored as the start point and the end point of the wire (W) wound on the bobbin (110), and the wire (W) can be set to the stroke range in which it is wound on the bobbin (110) through the data of both the start point and the end point of the bobbin (110). The determination of the start point and the end point of the bobbin (110) and the setting of the stroke range accordingly will be described in detail later along with the description of other components.

[0094] The control unit (140) can receive detection values ​​from the above-described center detection unit (121) and dancer variation detection unit (135). The control unit (140) can control the left and right movement of the traverse (120) to align the center of the traverse (120) according to the received detection values, and can be equipped to determine the start and end points of the bobbin (110), i.e., one end and one end, and set the stroke range of the bobbin (110).

[0095] For example, the control unit (140) can receive the detection value of the center detection unit (121).

[0096] The control unit (140) may be equipped to control the traverse drive module (122) through the detection value of the traverse center detection unit (121).

[0097] When the traverse center detection unit (121) determines that the position of the traverse (120) is the center, the control unit (140) controls the traverse drive module (122) to move the traverse (120) to the left or right so that the wire (W) is wound around the bobbin (110).

[0098] In contrast, the traverse center detection unit (121) can detect how far the traverse (120) is from the center, not to the left and to the left. The control unit (140) receives the detection value therefor and controls the traverse drive module (122) to move the traverse (120) to the right by the distance from the center range. In addition, the traverse center detection unit (121) can detect how far the traverse (120) is from the center, not to the right and to the right. The control unit (140) receives the detection value therefor and controls the traverse drive module (122) to move the traverse (120) to the left by the distance from the center range.

[0099] Additionally, the control unit (140) can receive the detection value of the dancer variation detection unit (135) in real time.

[0100] The control unit (140) compares the detection value received from the dancer variation detection unit (135), i.e., the angular variation range of the dancer (130), with the angular variation range of the dancer (130) set in the control unit (140).

[0101] Depending on the comparison value described above, the control unit (140) can control whether to implement continuous movement of the traverse (120) or to set the range of the stroke of the bobbin (110) by determining whether it is the starting point and the end point according to one end or the tile end of the bobbin (110).

[0102] If the angle change range of the dancer (130) authorized by the dancer change detection unit (135) to the control unit (140) is smaller than the angle change range set in the control unit (140), the control unit (140) controls the traverse drive module (122) so that the traverse (120) continues to move in the direction in which it was moving, for example, in the left direction if it was moving in the left direction, or in the right direction if it was moving in the right direction.

[0103] When the angle of the dancer (130) applied from the dancer fluctuation detection unit (135) to the control unit (140) becomes greater than the angle fluctuation range of the dancer (130) set in the control unit (140), the control unit (140) sets the immediate position of the traverse (120) corresponding to the point where the fluctuation range of the dancer (130) becomes greater than the fluctuation range set in the control unit (140) to one end, which is the starting point of the bobbin (110), and / or the end, which is the tile end. Here, the immediate position of the traverse (120) is the point where resistance is generated as the traverse (120) comes into contact with both end points of the bobbin (110), and the fluctuation range of the dancer (130) becomes greater than the set range due to this resistance, and may be set as 'position +1 of the traverse (120)' and 'position -1 of the traverse (120)' depending on the movement direction of the traverse (120). Here, '+1' and '-1' may mean the minimum length that can be set depending on the length of the traverse (120), the length of the bobbin (110), the thickness of the wire (W), etc.

[0104] For example, if it is determined that the angle of the dancer (130) authorized by the control unit (140) is greater than the angle fluctuation range of the dancer (130) set in the control unit (140), the control unit (140) determines the movement direction of the traverse (120) again. If the movement direction of the traverse (120) authorized by the control unit (140) is left, the control unit (140) sets the position of one end (starting point) of the bobbin (110) to the value 'traverse (120) +1' at the position of the traverse (120) at the point where the angle fluctuation of the dancer (130) is determined to be greater than the range.

[0105] After setting the position of one end of the bobbin (110) in the control unit (140), check whether both end points of the bobbin (110) are set. If both end points of the bobbin (110) are set, set the stroke range for winding the bobbin (110).

[0106] If only one end point of the bobbin (110), the above-described end point (which may be the tile end point depending on the situation), is set, the control unit (140) controls the traverse drive module (122) to move in the opposite direction to the direction in which the traverse (120) was moved, for example, to move in the opposite right direction if it was moved to the left, or to move in the opposite left direction if it was moved to the right.

[0107] If it is determined that the angle of the dancer (130) authorized by the control unit (140) is greater than the angle fluctuation range of the dancer (130) set in the control unit (140), the control unit (140) determines the movement direction of the traverse (120) again. If the movement direction of the traverse (120) authorized by the control unit (140) is to the right, the control unit (140) sets the position of the tile end (end point) of the bobbin (110) to the value 'traverse (120) -1' at the position of the traverse (120) at the point where the angle fluctuation of the dancer (130) is determined to be greater than the range.

[0108] In this way, the wire (W) is wound around the bobbin (110) through the leftward and rightward movements of the traverse (120), and the control unit (140) can check both end points (one end (starting point), tile end (ending point)) of the bobbin (110) through the resistance of the traverse (120) generated by the contact of the wire (W) at one end or tile end by the wall surface of the bobbin (110) and the resulting angular fluctuation range of the dancer (130). The control unit (140) determines both end points of the bobbin (110), and accordingly, the stroke range of the bobbin (110) can be set.

[0109] Below, a method for setting the transfer range of a traverse (120) in a transfer range setting system (100) for stroke setting in a multi-wire saw process having the above configuration can be described.

[0110] FIG. 7 is a schematic flowchart of a method for setting the transfer range of a traverse (120) for stroke setting in a multi-wire saw process according to one embodiment of the present invention.

[0111] Referring to FIG. 7, a method for setting a transfer range of a traverse (120) for stroke setting in a multi-wire saw process according to an embodiment of the present invention includes a driving step (S10) of a traverse (120), a center range determination step (S20) of a traverse (120), a movement step (S40) of a traverse (120), a variation range determination step of a dancer (130) (a step of comparing a variation range of a detected dancer (130) with a variation range of a dancer (130) set in a control unit (140) (S50), a continuous movement step (S40) of a traverse (120) and an end point storage step according to the position of the traverse (120) (a step of determining a traverse (120) movement direction (S60) and a step of determining that both end points are saved complete (S70)), a step of storing a position of one end or a tile end of a bobbin (110) (S61, S62), and a stroke range setting step of a bobbin (110). It may include step (S80).

[0112] First, for stroke setting of the bobbin (110) of the traverse (120), an operation for setting the stroke range is implemented through a one-button click of the drive button (123) provided on the traverse (120) (traverse (120) drive step (S10)).

[0113] When the drive button (123) is pressed, for example, when the one-button click is performed, the center detection unit (121) determines whether the position of the traverse (120) is the center position and the center range of the traverse (120) (center range determination step (S20) of the traverse (120)).

[0114] If the traverse (120) is in the center range, the control unit (140) controls the traverse drive module (122) to drive the traverse (120) so that the wire (W) is wound around the bobbin (110) (step (S40) of moving the traverse (120) while winding the wire (W) around the bobbin (110)).

[0115] If the location of the traverse (120) detected by the center detection unit (121) is determined to be outside the center range, the center detection unit (121) determines where the traverse (120) is located based on the center range (traverse (120) location determination step (S30)). For example, the center detection unit (121) determines whether the location of the traverse (120) is located to the left or right based on the center range, and also determines how far the location of the traverse (120) is spaced to the left or right from the center position.

[0116] In the position determination step (S30) of the traverse (120), if the position of the traverse (120) determined by the center detection unit (121) is determined to be spaced a predetermined distance to the left or right from the center range, the control unit (140) controls the traverse drive module (122) to move the traverse (120) from the current position to the center range.

[0117] For example, if the position of the traverse (120) detected by the center detection unit (121) is detected to be spaced a predetermined distance to the left (left) from the center range, the control unit (140) controls the traverse drive module (122) to move the traverse (120) in the right (right) direction by the distance spaced from the center range (S31).

[0118] If the position of the traverse (120) detected by the center detection unit (121) is detected to be spaced a predetermined distance to the right from the center range, the control unit (140) controls the traverse drive module (122) to move the traverse (120) to the left (left) direction by a distance spaced from the center range (S32).

[0119] By driving the traverse (120), the position of the traverse (120) can be positioned at the center point.

[0120] When the traverse detection unit detects that the position of the traverse (120) is at the center point, the control unit (140) controls the traverse drive module (122) to move the traverse (120) in a set direction, for example, to the left or right, so that the wire (W) is wound around the bobbin (110) (step (S40) of moving the traverse (120) while winding the wire (W) around the bobbin (110)).

[0121] The traverse (120) moves horizontally to the left or right while winding the wire (W) onto the bobbin (110). When the traverse (120) winds the wire (W) onto the bobbin (110), the wire (W) is wound toward one end or the tile end of the bobbin (110).

[0122] For example, as the traverse (120) moves from the center point to the left, the wire (W) can be wound toward one end of the bobbin (110). Conversely, as the traverse (120) moves from the center point to the right, the wire (W) can be wound toward the tile end of the bobbin (110).

[0123] As the traverse (120) moves horizontally to the left or right, the wire (W) is wound around the bobbin (110), and when the wire (W) comes into contact with the wall surface of one end or the tile end of the bobbin (110), resistance is generated in the traverse (120) due to the wire (W) coming into contact with the wall surface of the bobbin (110). When resistance is generated in the traverse (120), while the tension of the wire (W) is maintained between the traverse (120) and the dancer (130), a pulling force is generated on the dancer (130) connected to the traverse (120), and the angle of the dancer (130) changes. As the angle of the dancer (130) changes, the dancer change detection unit (135) detects this in real time, and the angle change range of the dancer (130) detected by the dancer change detection unit (135) is applied to the control unit (140).

[0124] The control unit (140) compares and determines the detection value applied from the dancer fluctuation detection unit (135) with the fluctuation range of the dancer (130) set in the control unit (140) (fluctuation range determination step of the dancer (130) (S50 to S70)).

[0125] The step (S50 to S70) of determining the fluctuation range of the dancer (130) may include a step (S50) of comparing the detected fluctuation range of the dancer (130) with the fluctuation range of the dancer (130) set in the control unit (140), a step (S40) of continuously moving the traverse (120), and a step (S61, S62) of detecting the step of storing the end point according to the position of the traverse (120).

[0126] Specifically, the control unit (140) determines whether the fluctuation range of the dancer (130) authorized by the control unit (140) is less than or greater than the fluctuation range of the dancer (130) set in the control unit (140) (step (S50) of comparing the fluctuation range of the detected dancer (130) with the fluctuation range of the dancer (130) set in the control unit (140)).

[0127] If the fluctuation range of the dancer (130) determined by the control unit (140) is less than or equal to the set fluctuation range, the control unit (140) continues to control the traverse drive module (122) to continuously wind the wire (W) around the bobbin (110) (continuous movement step (S40) of the traverse (120)). For example, if the fluctuation range of the dancer (130) is compared with the fluctuation range set in the control unit (140) and the fluctuation range of the dancer (130) is less than or equal to the fluctuation range set in the control unit (140), the bobbin (110) moves the traverse (120) to the left or right while winding the wire (W).

[0128] When the wire (W) of the bobbin (110) is wound and comes into contact with one end or tile end of the bobbin (110), the fluctuation range of the dancer (130) becomes greater than or equal to the set fluctuation range of the control unit (140). When the fluctuation range of the dancer (130) determined by the control unit (140) becomes greater than or equal to the set fluctuation range, the control unit (140) stores both end points of one end or tile end of the bobbin (110) according to the position of the traverse (120) (end point storage step (S61, S62) according to the position of the traverse (120)).

[0129] The step of storing the end point according to the position of the traverse (120) may include a step of determining the movement direction of the traverse (120) and a step of determining whether storing both end points is complete (S70).

[0130] Specifically, when the wire (W) comes into contact with the wall surface of one end or the tile end of the bobbin (110), the angle change value of the dancer (130) becomes greater than or equal to a set value, and the control unit (140) determines the movement direction of the traverse (120) to determine whether the wall surface of the bobbin (110) that the wire (W) comes into contact with is the wall surface of one end or the wall surface of the tile end (traverse (120) movement direction determination step (S60)).

[0131] If the direction of movement of the traverse (120) is to the left, the end point is stored as a +1 value of the position of the traverse (120) ((S61)), and if the direction of movement of the traverse (120) is to the right, the end point is stored as a -1 value of the position of the traverse (120) (step of storing the end point according to the position of the traverse (120) (S61, S62)).

[0132] As described above, the end points are saved according to the direction of movement of the traverse (120). Each end point is saved, and after saving the end points, it is determined whether both end points have been saved (step (S70) for determining whether saving both end points is complete).

[0133] In the step (S70) of determining whether both end points have been saved, if only the left or right end point has been saved, the control unit (140) controls the traverse drive module (122) to move the traverse (120) to the other side in order to save the other end point according to the position of the traverse (120) (S71).

[0134] When the other end point according to the position of the traverse (120) is also stored by driving the other end of the traverse (120), the control unit (140) determines that both end points have been stored in the step of determining that both end points have been stored.

[0135] As described above, by storing both the end points of one side and the other side according to the position of the traverse (120), one end or the tile end of the bobbin (110) can be set to the position immediately before the point where the fluctuation range of the dancer (130) becomes greater than the set fluctuation range of the control unit (140) (step of storing the position of one end or the tile end of the bobbin (110) (S61, S62)).

[0136] The control unit (140) sets the stroke range of the bobbin (110) by the position of one end or one end of the stored bobbin (110) (step (S80) of setting the stroke range of the bobbin (110)).

[0137] Those skilled in the art will appreciate that the present invention can be implemented in other specific forms without altering its technical spirit or essential characteristics. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims below rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

[0138] (Explanation of symbols)

[0139] 100: Traverse travel range setting system for stroke setting in multi-wire saw process

[0140] 110: Bobbin

[0141] 120: Traverse

[0142] 121: Traverse Center Detection Unit

[0143] 122: Traverse drive module

[0144] 123: Drive button

[0145] 130: Dancer

[0146] 135: Dancer change detection unit

[0147] 140: Control Unit

[0148] 150: Storage

Claims

1. Bobbin with wire wound on it; A traverse provided on the upper part of the bobbin, which moves horizontally and vertically releases the wire wound on the bobbin; and A dancer is included at a predetermined distance from the above traverse to maintain tension of the wire when the bobbin is unwound. When the wire is wound around the bobbin, the traverse moves horizontally to maintain the vertical direction of the wire, and when the wire is positioned at one end and one end of the bobbin, the dancer moves at a predetermined angle toward the traverse due to the resistance generated at one end and one end of the bobbin by the wire. The point where the dancer's predetermined angular movement occurs is stored as the start point and end point where the wire is released to the bobbin, and the data of both points is set as the stroke range where the wire is released to the bobbin. Traverse travel range setting system for stroke setting in multi-wire saw process.

2. In paragraph 1, A center detection unit for detecting the center of the above traverse; and Including a control unit that controls the left and right movement of the traverse according to the detection of the center detection unit. Traverse travel range setting system for stroke setting in multi-wire saw process.

3. In paragraph 2, Further comprising a dancer variation detection unit that detects the angular variation of the dancer caused by the resistance of the traverse generated at both ends of the bobbin when the traverse moves. Traverse travel range setting system for stroke setting in multi-wire saw process.

4. In paragraph 3, The control unit receives the detected detection value of the dancer fluctuation detection unit, compares the fluctuation range of the dancer according to the detected detection value with the set fluctuation range, determines one end of the bobbin and the tile end according to the comparison value, and sets the range of the stroke of the bobbin. Traverse travel range setting system for stroke setting in multi-wire saw process.

5. In paragraph 4, When the fluctuation range of the dancer is greater than or equal to the fluctuation range set in the control unit, the position immediately preceding the position of the traverse corresponding to the point where the fluctuation range of the dancer is greater than or equal to the fluctuation range set in the control unit is set in the control unit as one end or / and one tile end, which is the starting point or the end point of the bobbin. The stroke range of the bobbin is set through one end and one end of the bobbin. Traverse travel range setting system for stroke setting in multi-wire saw process.

6. In paragraph 5, The position immediately preceding the position of the above traverse is set to an end point of +1 from the position of the traverse when the direction of movement of the above traverse is to the left, and is set to an end point of -1 from the position of the traverse when the direction of movement of the above traverse is to the right. Traverse travel range setting system for stroke setting in multi-wire saw process.

7. In paragraph 3, The above dancer variation detection unit detects the variation range of the dancer through changes in position data mounted on the servo motor of the dancer. Traverse travel range setting system for stroke setting in multi-wire saw process.

8. In paragraph 3, The above dancer variation detection unit detects the variation range of the dancer through a position detection sensor mounted on the dancer. Traverse travel range setting system for stroke setting in multi-wire saw process.

9. In paragraph 1, Further comprising a button member for operating the above traverse, Traverse travel range setting system for stroke setting in multi-wire saw process.

10. Step of driving the traverse; A step of determining whether the above traverse is within the center range; A step of moving the above traverse while winding the wire onto the bobbin; A step of determining the angular variation range of a dancer connected to the above traverse; A step of storing the position of one end or one end of the bobbin according to the judgment of the angular variation range of the dancer; and A step of setting the stroke range of the bobbin by the position of one end or one end of the bobbin stored, Method for setting the travel range of the traverse for stroke setting in a multi-wire saw process.

11. In Article 10, In the step of determining whether the position of the above traverse is within the center range, If the position of the traverse is not the center, further comprising a step of determining where the position of the traverse is within the center range. Method for setting the travel range of the traverse for stroke setting in a multi-wire saw process.

12. In paragraph 11, After determining where the location of the above traverse is centered around the above center range, The step of moving the traverse to the right or left by a distance from the center range depending on the position of the traverse to the left or right of the center range and the distance from the center range, thereby moving the traverse to the center range. Method for setting the travel range of the traverse for stroke setting in a multi-wire saw process.

13. In paragraph 10, In the step of judging the range of angle variation of the dancer above, A step of the control unit receiving the angular variation range of the dancer and comparing the angular variation range of the dancer with the variation range set in the control unit; A step of comparing the variation range of the dancer with the variation range set in the control unit and moving the traverse in the left or right direction while winding the wire when the angular variation range of the dancer is less than or equal to the variation range set in the control unit; and Comprising a step of comparing the angular variation range of the dancer with the variation range set in the control unit, and if the angular variation range of the dancer is greater than or equal to the variation range set in the control unit, storing the end point of the bobbin according to the position of the traverse. Method for setting the travel range of the traverse for stroke setting in a multi-wire saw process.

14. In paragraph 13, The step of storing the end point of the bobbin according to the position of the above traverse is: A step of determining the direction of movement of the traverse after determining the range of angular variation of the dancer; and Including a step of determining whether the end point of the bobbin is one end of the bobbin or the tile end of the bobbin and whether both end points of the bobbin have been stored, according to the direction of movement of the traverse. Method for setting the travel range of the traverse for stroke setting in a multi-wire saw process.

15. In paragraph 14, In the step of storing the position of one end or one end of the bobbin based on the judgment of the angular variation range of the dancer, The one end or the tile end of the bobbin is set to a position immediately before the position of the traverse at a point where the angular variation of the dancer is greater than the set variation of the control unit. Traverse travel range setting system for stroke setting in multi-wire saw process.

16. In paragraph 15, The above-mentioned immediate position of the above-mentioned traverse is set to the end point of one end of the bobbin at the position of the above-mentioned traverse when the direction of movement of the above-mentioned traverse is left, depending on the left or right movement of the above-mentioned traverse, by setting a value of +1 at the position of the above-mentioned traverse to the end point of one end of the bobbin when the direction of movement of the above-mentioned traverse is right, and by setting a value of -1 at the position of the above-mentioned traverse to the end point of one end of the bobbin when the direction of movement of the above-mentioned traverse is right. Method for setting the travel range of the traverse for stroke setting in a multi-wire saw process.

17. In paragraph 15, In the step of determining whether both the end point of one end of the above traverse and the end point of the tile are saved, If only one of the end points of the traverse or the end point of the tile is stored, the step of reversing the direction of movement of the traverse is further included. After reversing the direction of movement of the above traverse, the process moves to the step of judging the range of variation of the dancer. Method for setting the travel range of the traverse for stroke setting in a multi-wire saw process.

Images