JP4337799B2 - Ultra-fine wire multiple winding device - Google Patents

Description

  The present invention is used to rewind ultrafine wires such as a gold wire used for a wire bonder from a plurality of unwinding spools for production processes to a plurality of winding spools for shipping evenly at high speed. The present invention relates to a continuous winding device.

  Usually, a winding device is used to rewind an ultrafine wire such as a gold wire from a winding spool for production process to a winding spool for shipping. A conventional winding device will be described with reference to the drawings. FIG. 3 is a perspective view showing a conventional winding device.

  The take-up spool (2) and the motor (3) are attached to the slide unit (5). The slide unit (5) moves the take-up spool (2) and the motor (3) in the direction of the rotation axis. The reciprocating motion is caused by the distance between the flanges of the take-up spool (2). The ultrafine wire (1) fed out from the unwinding spool (11) used for the production process is controlled by the wire tension detector (12) and the unwinding speed is controlled, and the winding spool is rotated by the motor (3). To (2), it is wound up in layers by the above-described reciprocating motion.

  In recent years, in order to improve productivity, a multiple winding device in which a plurality of slide units are arranged or a plurality of winding spools are attached to one slide unit is manufactured, and the total mass of one slide unit is increased. I came. The slide unit moves the spool in one direction along its rotation axis so that the fine wire is sequentially wound from one flange side of the spool to the other flange side. When the wound ultrafine wire reaches one flange, a reversal in the reciprocating motion of the spool occurs so that the ultrafine wire is wound toward the other flange. However, in a multiple winding device composed of a slide unit having an increased mass, large vibrations and vibrations are generated when the reciprocating motion is reversed. Therefore, by increasing the number of winding spools or increasing the speed of reciprocating motion in proportion to the winding speed, the aforementioned vibrations and vibrations increase, causing troubles in the multiple winding device. . Furthermore, such vibrations and vibrations affect the running of the ultrathin wire, causing a problem that the winding condition is hindered and normal winding cannot be performed.

  In order to solve these problems, for example, Japanese Patent Laid-Open No. 2001-352746 describes an apparatus that prevents a vibration generated from a slide unit by moving a counterweight in a direction opposite to the reciprocating motion of the slide unit. Has been. However, such a structure that functions only for preventing vibration has a problem in that productivity is lowered and cost is increased.

JP 2001-352746 A

  SUMMARY OF THE INVENTION An object of the present invention is to provide an ultrathin wire multiple winding device that can prevent the occurrence of vibrations and vibrations, can perform normal winding, and can improve productivity.

In one aspect of the multi-winding device of the present invention, the two or more motors that wind up the fine wire on the spool fixed to the rotating shaft are fixed on the slide portion that linearly reciprocates. Two slide units and a base to which the bases of the two slide units are fixed so that the movement of the center of gravity of the reciprocating part is aligned in a straight line, and the slide parts of the two slide units are It is controlled so as to always perform symmetrical reciprocation in the opposite direction in the direction of the rotation axis of the spool .

  Another aspect of the multi-winding device of the present invention is a multi-winding device in which two or more motors that wind up a fine wire on a spool fixed to a rotating shaft are mounted on a slide portion that linearly reciprocates. It consists of a plurality of fixed slide units and a base on which the bases of all the slide units are fixed so that the movement of the center of gravity of the reciprocating part is aligned in a straight line. The slide unit is reciprocated with respect to the base by a distance between flanges provided at both ends in the direction of the rotation axis of the spool in the direction of the rotation axis, and the slide units are divided into two groups. The slide portions of the group slide units are controlled to perform the same reciprocating motion, and the slide portions of the first group slide units and the second group slide units are slid. It is controlled so as to perform symmetrical reciprocating motion always in the opposite direction.

  Alternatively, the reciprocating motion in each slide unit is controlled so that the sum of the momentum generated by reversing the reciprocating motion of the slide portion of each slide unit is always canceled.

  In order to control the reciprocating motion by these slide units, the multiple winding device of the present invention further includes a pulse generator.

  With the multi-winding device for ultrathin wires according to the present invention, the occurrence of vibration and shaking can be prevented, normal winding can be performed, and productivity can be improved.

  An ultrathin wire multiple winding device of the present invention will be described with reference to the drawings showing an embodiment. FIG. 1 is a perspective view showing an embodiment of a multi-winding device for ultrathin wires according to the present invention.

  The slide unit (210) includes two motor holders (113) and (123) connected to each other, and the two motors (112) and (122) are provided via the motor holders (113) and (123). It is attached. Two take-up spools (111) and (121) for taking up the fine wire (1) fed out from the take-up spool are attached to the rotation shafts of the motors (112) and (122), respectively. Generally, flanges are provided at both ends in the direction of the rotation axis of the spool. The motor holders (113) and (123) of the slide unit (210) are arranged in the direction of the rotation axis of the take-up spools (111) and (121) by the distance between the flanges of the take-up spools (111) and (121). Perform reciprocating motion.

  Similarly, the slide unit (220) includes two motor holders (133) and (143) connected to each other, and the two motors (132) and (143) are connected via the motor holders (133) and (143). 142) is attached. Two take-up spools (131) and (141) for taking up the fine wire (1) fed out from the take-up spool are attached to the rotation shafts of the motors (132) and (142), respectively. The motor holders (133) and (143) of the slide unit (220) are arranged in the direction of the rotation axis of the take-up spools (131) and (141) by the distance between the flanges of the take-up spools (131) and (141). Perform reciprocating motion.

  In the illustrated example, the reciprocating motion by the slide unit is performed by a mechanism composed of a pulse motor and a gear (not shown). However, other known appropriate reciprocating motions such as a linear motor may be used. A mechanism can be adopted.

  The two slide units (210) and (220) are juxtaposed in a straight line, that is, in the direction of the rotation axis of the spool, in the direction of the center of gravity of the reciprocating portion on one base (7). The reciprocating motion by one slide unit (210) and the reciprocating motion by the other slide unit (220) are always controlled to be opposite. Specifically, the linear motions of the motors (112) and (122) and the spools (111) and (121) by one slide unit (210), and the motors (132) and (142 by the other slide unit (220). ) And spools (131) and (141) are controlled so as to always be in opposite directions, and are controlled so that reversal of these linear motions is performed simultaneously. Any of known techniques can be employed for the reciprocating motion control mechanism. For example, a pulse generator (not shown) may be used to control the reciprocating motion mechanism.

  The winding operation using the multi-winding device for ultrathin wires according to the present invention will be described below. FIG. 2 is a side view showing the operation of the slide unit during the winding operation.

  Similar to the conventional winding device shown in FIG. 3, the extra fine wire (1) is fed out from the unwinding spool (11), the intermediate guide pulley (9), the wire detection pulley (12), and the pre-winding guide pulley (8). ) And the tip of the ultrafine wire (1) is fixed to the flange of the take-up spool (111), (121), (131), (141) of the multiple take-up device of the present invention shown in FIG. To do.

  Thereafter, when the multi-winding device for the ultrathin wire of the present invention is started, as shown in FIG. 2, in proportion to the speed at which the ultrathin wire is wound on the take-up spool, the two slide units (210), Since (220) reciprocates, the fine wire is wound up in layers on the take-up spool. Further, the two slide units (210) and (220) perform reversal of the reciprocating motion at the timing when the fine wire forms one layer on the take-up spool. At this time, control is performed so that the reversal of one slide unit (210) and the reversal of the other slide unit (220) are simultaneous.

  By operating as described above, the two slide units (210) and (220) on the one base (7) are simultaneously reversed, so that the impact force due to inertia cancels each other and vibration is generated. Without shaking.

  The present invention is particularly useful when two or more motors and spools are attached to one slide unit. As shown in FIG. 2, one motor and spool are attached to one slide unit. The present invention can also be applied to the case where the slide unit is arranged on one base. Further, in the illustrated embodiment, two slide units are mounted on one base, but it is possible to install three or more slide units on one base. The total amount of momentum generated by reversing the reciprocating motion of the slide unit is controlled so as to always cancel out.

It is a perspective view which shows one Example of the multiple winding apparatus of the ultrafine wire of this invention. It is a side view which shows operation | movement of the slide unit in winding-up operation | work. It is the perspective view which showed one Example of the conventional winding apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Extra fine wire 2 Take-up spool 3 Motor 4 Motor holder 5 Slide unit 7 Base 8 Pre-winding guide pulley 9 Intermediate guide pulley 10 Motor 11 Unwinding spool 12 Wire detection pulleys 111, 121, 131, 141 Take-up spools 112, 122 , 132, 142 Motor 113, 123, 133, 143 Motor holder 210, 220 Slide unit

Claims (4)

Two or more motors that take up a fine wire on a spool fixed to a rotating shaft are provided with two slide units fixed on a slide portion that linearly reciprocates, and a center of gravity of a portion that reciprocates. An ultrathin wire multiple winding device comprising a base to which the bases of two slide units are fixed so that the movements are aligned, and the slide parts of the two slide units are arranged in the direction of the rotation axis of the spool. always multiple-winding apparatus filament characterized by being controlled that to perform symmetric reciprocating in the opposite direction.   Two or more motors that take up a fine wire on a spool fixed to a rotating shaft are provided with a plurality of slide units fixed on a slide portion that linearly reciprocates and a center of gravity of a portion that reciprocates. An ultra-thin multi-winding device comprising a base on which the bases of all slide units are fixed so that the movements are aligned, and each slide unit is arranged in the direction of the rotation axis of the spool. The slide unit is reciprocated with respect to the base by the distance between the flanges provided at both ends in the direction of the rotation axis. The slide units are divided into two groups, and the slide units of the slide units of each group are The slide parts of the first group of slide units and the slide parts of the second group of slide units are always paired in opposite directions. Multiple-winding apparatus filament characterized by being controlled that to perform reciprocating motion.   Two or more motors that take up a fine wire on a spool fixed to a rotating shaft, a plurality of slide units fixed on a slide portion that reciprocates linearly, and a base portion of all slide units are fixed Each of the slide units in the direction of the rotation axis of the spool and the distance between the flanges provided at both ends in the direction of the rotation axis of the spool. The reciprocating motion of each slide unit is controlled so that the sum of the momentum generated by reciprocating the slide portion with respect to the base portion and reversing the reciprocating motion of each slide unit is always cancelled. An ultra-fine wire multiple winding device characterized by the above.   The ultra-thin wire multiple winding device according to any one of claims 1 to 3, further comprising a pulse generator for controlling reciprocating motion in the slide unit.

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