Traverser device

Abstract

To provide a traverser device in which a touch sensor does not obstruct the travel of a wire when the position of a flange of a traverser pulley is detected by using the touch sensor.SOLUTION: The wire harness includes a reel 2 around which a wire 3 is wound between flanges 21, a traverser pulley 41 for guiding the wire 3 coming in and out of the reel 2, a moving mechanism 61 for moving the traverser pulley 41 along a rotating shaft of the reel 2, a touch sensor 5 having a contact 51 abutting on the flange 21 of the reel 2, and a swing mechanism 63 for swinging the contact 51 of the touch sensor 5 in a direction crossing the rotating shaft of the reel 2. When the wire 3 enters and leaves the traverser pulley 41, the traverser pulley 41 is retreated to the outside of the flange 21 of the reel 2, and when the wire 3 does not enter and leave the reel 2, the traverser pulley 41 is moved to a position where the traverser pulley 41 abuts on the flange 21 of the reel 2.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a traverser device that allows a linear object such as a wire to be wound onto a reel, and more specifically, to a traverser device that detects the positions of flanges provided on both ends of the reel and allows the linear object to be wound evenly onto the reel while moving back and forth. [Background technology]

[0002] Conventionally, when a wire is fed into or out of a reel, a traverser device is generally used.

[0003] This traverser device comprises a traverser pulley located near the reel onto which the wire is wound, and a movement mechanism for moving the traverser pulley along the direction of the reel's rotation axis. By moving the traverser pulley along the direction of the reel's rotation axis, the wire can be wound evenly.

[0004] Incidentally, in such a traverser device, a structure such as that described in Patent Document 1 below has been proposed, which detects the position of flanges provided at both ends of the reel and causes the traverser pulley to move back and forth according to the position of the flanges.

[0005] This traverser device has an optical sensor attached to the traverser pulley, and when the traverser pulley is reciprocated, the optical sensor is used to detect the position of the flange and cause the traverser pulley to reciprocate. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 06-80311 Summary of the Invention [Problem to be solved by the invention]

[0007] However, such a traverser device configuration has the following problems.

[0008] That is, when detecting the flange position using an optical sensor, as shown in Patent Document 1, the influence of the slurry may make it impossible to accurately detect the flange position. Also, if the distance between the optical sensor and the reel is long, the optical axis may be misaligned, and if vibration occurs when the traverser pulley turns around, it may become difficult to accurately detect the flange position.

[0009] Alternatively, a physical touch sensor may be attached to the traverser pulley, and the contacts on the touch sensor may be brought into contact with the flange to detect the flange position. However, this method places the contacts adjacent to the wires, which may cause the wires to come into contact with the contacts. Also, if the wires break, the broken wires may come into contact with the contacts, damaging them.

[0010] Therefore, the present invention has been made with an eye on the above-mentioned problems, and aims to provide a traverser device in which, when a touch sensor is used to detect the position of the flange of a traverser pulley, the touch sensor does not interfere with the running of a linear object such as a wire. [Means for solving the problem]

[0011] In other words, in order to solve the above-mentioned problems, the present invention provides a traverser device comprising a reel having flanges on both ends and around which a wire is wound, a traverser pulley for guiding the wire entering and leaving the reel, a first moving mechanism for moving the traverser pulley along the rotation axis of the reel, and a touch sensor having a contact that abuts against the flange of the reel, the device also comprising a second moving mechanism for moving the contact of the touch sensor in a direction transverse to the rotation axis of the reel, and a control unit for retracting the contact of the touch sensor to the outside of the flange of the reel when the wire is entering or leaving the traverser pulley, and for moving the contact of the touch sensor to a position where it abuts against the flange of the reel when the wire is not entering or leaving the reel.

[0012] With this configuration, the contacts of the touch sensor can be separated from the wires when the wires are connected in or out, thereby reducing the possibility that the wires will come into contact with the contacts of the touch sensor.

[0013] In addition, in such an invention, when the second moving mechanism is provided, a swinging mechanism is used that swings and rotates the traverser pulley in a direction that intersects with the rotation axis of the reel.

[0014] With this configuration, it is no longer necessary to employ a large-scale structure compared to when a slide mechanism or the like is used to move the traverser pulley linearly, and the traverser pulley can be moved more easily.

[0015] Furthermore, when detecting the position of the flange, the touch sensor is used to detect the position of the flange, the detected flange position is stored, and when no wire is being fed into or out of the reel, the touch sensor is moved to a position where it abuts against the flange of the reel, and the first moving mechanism is used to reciprocate the traverser pulley within the range of the stored left and right flange positions.

[0016] With this configuration, the traverser can be moved at an appropriate reel width using the stored information without abutting the contacts of the touch sensor each time the traverser pulley is reciprocated, thereby reducing the risk of the wire breaking.

[0017] Furthermore, when the contacts of the touch sensor are provided, they are provided along the direction of the wire at the wire entry / exit positions of the traverser pulley.

[0018] By providing it in this manner, the position of the contact and the position of the wire can be aligned, so that the traverser pulley can be folded back exactly at the flange position.

[0019] Furthermore, when the touch sensor is provided, it is attached to a bracket that holds the traverser pulley.

[0020] By configuring it in this manner, the touch sensor can be moved between a contact position with the flange and a non-contact position using a mechanism that oscillates the traverser pulley, thereby simplifying the device and reducing costs. [Effects of the Invention]

[0021] According to the present invention, when the wire is input or output, the contacts of the touch sensor can be separated from the wire, thereby reducing the possibility that the wire will come into contact with the contacts of the touch sensor. [Brief explanation of the drawings]

[0022] [Figure 1] An ingot cutting device according to one embodiment of the present invention [Figure 2] Schematic front view of the traverser device in the same configuration. [Figure 3] Schematic front view of the traverser device in the same configuration. [Figure 4] FIG. 2 is a perspective view of the traverser device in the same configuration. [Figure 5] Diagram showing the positions of the traverser pulley and touch sensor in this configuration [Figure 6] Diagram showing the positions of the traverser pulley and touch sensor in this configuration DETAILED DESCRIPTION OF THE INVENTION

[0023] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0024] As shown in Fig. 1, an ingot cutting device 1 to which a traverser device 4 according to this embodiment is applied is configured to include a wire 3 for cutting a silicon ingot 8, a reel 2 around which the wire 3 is wound, a traverser device 4 that enables the wire 3 to be wound evenly around the reel 2, and a cutting unit 7 that cuts the ingot 8 using the wire 3. As shown in Figs. 2 to 6, the traverser device 4 is provided with touch sensors 5 that come into contact with flanges 21 provided on both ends of the reel 2, and during initial setup, contacts 51 of the touch sensors 5 are positioned in the contact area of ​​the flange 21 as shown in Fig. 6 and moved left and right (the states of Figs. 2 and 3), detecting the position of the flange 21 and storing the position in a memory unit 91. When cutting the ingot 8, the contacts 51 of the touch sensors 5 are retracted to the non-contact area of ​​the flange 21 as shown in Figs. 4 and 5. In this way, the contactor 51 is positioned away from the wire 3, thereby reducing the possibility that the wire 3 will come into contact with the contactor 51. The ingot cutting device 1 and the traverser device 4 in this embodiment will be described in detail below.

[0025] First, the reel 2 provided in the ingot cutting device 1 has flanges 21 on both the left and right ends along the rotation axis direction, and the wire 3 is wound between these flanges 21. A motor provided on the rotation axis of the reel 2 is used to feed and unwind the wire 3 with a constant tension.

[0026] As shown in Figures 2 and 3, the traverser device 4 provided adjacent to the reel 2 includes a moving mechanism 61 equipped with a slide rail 62 that moves the traverser pulley 41 in a direction along the rotation axis of the reel 2. This moving mechanism 61 is controlled by a control unit 92 so that the traverser pulley 41 can be turned back at the position of the flange 21 stored in a memory unit 91. The rotation axis of the traverser pulley 41 is arranged to intersect with the rotation axis of the reel 2, as shown in Figure 5, so that the wire 3 entering and leaving the reel 2 can be directed in a direction along the rotation axis of the reel 2. The reel 2 and traverser device 4 thus provided are provided in two locations, one on the outgoing side and one on the incoming side, with the cutting unit 7 in between, as shown in Figure 1, and the wire 3 is reciprocated between the reel 2 on one side and the reel 2 on the other side to perform the cutting process.

[0027] The cutting section 7 (see Figure 1) provided along the path of such wire 3 is configured to be able to cut the ingot 8 using the wire 3, and is configured so that the wire 3 is made to circle around guide rollers 71 provided on the left and right sides and pressed against the ingot 8 with a predetermined pressure, thereby cutting the ingot 8 to the thickness of the gap between the wire 3.

[0028] In this configuration, in this embodiment, a touch sensor 5 (see FIG. 2, etc.) for detecting the return position of the traverser pulley 41 is provided.

[0029] The touch sensor 5 is configured to detect the position of the flange 21 by bringing contacts 51 along the longitudinal direction into contact with the flange 21. The detected position of the flange 21 is then stored in a memory unit 91, and a control unit 92 is used to control the moving mechanism 61 so that the traverser pulley 41 turns back at that position.

[0030] This touch sensor 5 is attached to a bracket 43 that holds the traverser pulley 41. When attached to this bracket 43, it is provided in a direction along the wire 3 from the input / output position of the traverser pulley 41, as shown in Figures 2 and 3. By providing the touch sensor 5 in this manner, the position of the wire 3 wound around the reel 2 and the position of the contactor 51 are matched, making it possible to accurately detect the return position of the traverser pulley 41.

[0031] The bracket 43 for mounting the touch sensor 5 is provided to rotate in a direction along the rotation axis of the traverser pulley 41 via a swing mechanism 63. As shown in FIG. 5, the swing mechanism 63 aligns the groove 42 of the traverser pulley 41 in a direction along the wire 3 entering and leaving the reel 2, and is configured to swing using an internal motor centered around a swing axis 44 (see FIGS. 2 and 3). To align the groove 42 of the traverser pulley 41 with the axial direction of the wire 3, for example, a sensor (not shown) can measure the distance the wire 3 has entered and exited, calculate the winding diameter of the wire 3 wound around the reel 2, and orient the groove 42 of the traverser pulley 41 to a position along the outer diameter of the calculated diameter. To swing the traverser pulley 41 in this way, a balancer 45 having an equivalent mass is provided on the opposite side of the swing axis 44 so that the traverser pulley 41 can be swung with a light force.

[0032] When cutting the ingot 8, the contacts 51 of the touch sensor 5 are retracted to a position where they do not abut against the flange 21, as shown in FIG. 5 . Assuming that the minimum and maximum angles from the direction of the groove 42 of the traverser pulley 41 and the horizontal plane when the wire 3 is input to or output from the reel 2 are D1 and D2, respectively, the contacts 51 of the touch sensor 5 are oriented at a position that is outside these angles. In this case, the touch sensor 5 may be provided in front of the traverser pulley 41 at an angle smaller than the minimum angle D1. However, if the touch sensor 5 is oriented in such a position, the contacts 51 would get in the way when the traverser pulley 41 is attached. Therefore, in this example, the contacts 51 are provided at the back of the traverser pulley 41 at an angle greater than the maximum angle D2 when the wire 3 is input to or output from the reel 2. By providing the contactors 51 in such positions, the distance between the wire 3 and the contactors 51 is increased, and when it is necessary to detect the position of the flange 21, as shown in FIG. 6, the swing mechanism 63 is used to swing the bracket 43, the contactors 51 are moved to the abutment area of ​​the flange 21, and the movement mechanism 61 is used to reciprocate the contactors 51 (the state shown in FIGS. 2 and 3). The contactors 51 of the touch sensor 5 are then brought into contact with the left and right flanges 21, and their positions are stored in the memory unit 91. After storing the positions of the flanges 21 in this manner, the contactors 51 of the touch sensor 5 are again swung to a position away from the maximum angle for input / output of the traverser pulley 41 (the state shown in FIGS. 4 and 5), so that the wire 3 and the contactors 51 are kept apart when inputting / outputting the wire 3.

[0033] Next, a method of using the ingot cutting device 1 configured as above will be described.

[0034] First, when cutting the ingot 8 using the wire 3, an empty reel 2 on the recovery side (a reel 2 on which the wire 3 is not wound) is set on the rotation shaft. At this time, the contacts 51 of the touch sensor 5 are retracted to the non-contact area of ​​the flange 21 as shown in FIG.

[0035] Then, with the reel 2 attached to the rotating shaft, the contact 51 of the touch sensor 5 is swung to the abutment area of ​​the flange 21 using the swing mechanism 63, as shown in Figure 6, and in that state, the traverser pulley 41 is moved back and forth left and right using the movement mechanism 61, as shown in Figures 2 and 3.

[0036] Then, the contacts 51 of the touch sensor 5 come into contact with the flanges 21, thereby detecting the positions of the left and right flanges 21. The detected positions of the flanges 21 are then stored in the memory unit 91.

[0037] Next, with the position of the flange 21 memorized, the wire 3 is run with a certain tension applied, and the ingot 8 is cut.

[0038] At this time, the winding diameter of the wire 3 on the reel 2 gradually decreases as the wire 3 is let out, while the winding diameter of the wire 3 on the opposite side gradually increases. At this time, in response to this change in winding diameter, the swinging mechanism 63 is used to swing the traverser pulley 41 so that the groove 42 of the traverser pulley 41 is aligned in a direction corresponding to the winding diameter of the wire 3. Then, in this state, the movement mechanism 61 is used to reciprocate the traverser pulley 41. At this time, the traverser pulley 41 is controlled to reciprocate between the positions of the flange 21 stored in the memory unit 91.

[0039] Then, the wire 3 is reciprocated to cut the ingot 8 .

[0040] According to the above embodiment, the traverser device 4 comprises a reel 2 having flanges 21 at both ends and a wire 3 wound between the flanges 21, a traverser pulley 41 that guides the wire 3 being input / output to / from the reel 2, a moving mechanism 61 that moves the traverser pulley 41 along the rotation axis of the reel 2, and a touch sensor 5 having a contact 51 that abuts against the flange 21 of the reel 2. The traverser device 4 is equipped with a swinging mechanism 63 that swings the contact 51 of the touch sensor 5 in a direction crossing the rotation axis of the reel 2, and is equipped with a control unit 92 that retracts the contact 51 to the outside of the flange 21 of the reel 2 when the wire 3 is input / output to / from the traverser pulley 41, and moves the contact 51 to a position abutting the flange 21 of the reel 2 when the wire 3 is not input / output to / from the reel 2. Therefore, the contact 51 of the touch sensor 5 can be separated from the wire when the wire 3 is input / output. This reduces the possibility that the wire 3 will come into contact with the contactor 51 of the touch sensor 5.

[0041] The present invention is not limited to the above-described embodiment, but can be implemented in various forms.

[0042] For example, in the above embodiment, the rotation axis of the traverser pulley 41 is arranged to intersect with the rotation axis of the reel 2, but the wire 3 may also be run with the rotation axis of the traverser pulley 41 and the rotation axis of the reel 2 facing in the same direction.

[0043] In addition, in the above embodiment, the traverser pulley 41 is configured to swing around the swing axis 44, but the traverser pulley 41 may also be moved linearly to a position corresponding to the winding diameter of the wire 3.

[0044] Furthermore, in the above embodiment, the touch sensor 5 is attached to the bracket 43 of the traverser pulley 41 and is configured to oscillate and rotate integrally with the traverser pulley 41, but the touch sensor 5 may be configured to oscillate and rotate or move linearly independently.

[0045] Furthermore, in the above embodiment, the ingot cutting device 1 for cutting the ingot 8 has been described as an example, but the present invention can also be applied to devices for unwinding thread from a bobbin having a flange. [Explanation of symbols]

[0046] 1. Ingot cutting device 2 reels 21. Flange 3. Wire 4. Traverser device 41 Traverser pulley 42...Groove 43 Bracket 44....Oscillating shaft 45 Balancer 5. Touch sensor 51 Contact 61...Moving mechanism 62···Slide rail 63. Oscillating mechanism 7...Cut section 71 Guide roller 8 Ingots

Claims

1. a reel having flanges on both ends and a wire wound between the flanges; a traverser device including a traverser pulley that guides the wire that is input to and output from the reel, and a first moving mechanism that moves the traverser pulley along the rotation axis of the reel; a touch sensor having a contact that abuts against the flange of the reel; In a traverser control device comprising: a second moving mechanism that moves the contact of the touch sensor in a direction crossing the rotation axis of the reel; A traverser control device characterized by having a control unit that retracts the wire to the outside of the flange of the reel when the wire is being input or output to the traverser pulley, and moves it to a position where it abuts the flange of the reel when the wire is not being input or output to the reel.

2. 2. A traverser pulley control device according to claim 1, wherein the second moving mechanism is configured with a mechanism that oscillates and rotates the traverser pulley in a direction perpendicular to the rotation axis of the reel.

3. Detecting a flange position using the touch sensor and storing the detected flange position; 2. The traverser pulley control device according to claim 1, wherein the first moving mechanism is used to reciprocate the traverser pulley using the stored flange position.

4. 2. The traverser pulley control device according to claim 1, wherein the contacts of the touch sensor are provided at the entry and exit positions of the traverser pulley.

5. 2. The traverser pulley control device according to claim 1, wherein the touch sensor is attached to a bracket that holds the traverser pulley.

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