JP2007167901A - Wire drawing method and wire drawing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire drawing method and a wire drawing device capable of simplifying a wire drawing structure, reducing an installation space of the device, winding a wire in a non-overlapping manner, preventing any damage of the wire, and enhancing the wire drawing workability. <P>SOLUTION: A pair of drums 1, 2 are provided freely in a rotatably winding manner and in a reversely and rotatably delivering manner. The pair of drums are provided freely in a reciprocally movable manner in the direction different from the axial direction of each drum, and a die is provided on a die of different die diameter freely in an exchangeable manner. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a drawing method and apparatus used for drawing a metal wire of a fixed size such as a gold wire and a silver wire.

Conventionally, as this type of wire drawing device, there is known a structure in which a wire is drawn by a pair of parallel corrugated wheels capable of hanging the wire in parallel or a conical drum and a die disposed between the drums. Yes.
JP-A-7-236911

  However, in the case of this conventional structure, although it is suitable for a structure in which a fixed-size wire is continuously drawn, it has a disadvantage that it may be complicated and may require a large installation space.

  The present invention aims to solve these disadvantages. Among the present inventions, the method invention according to claim 1 is arranged between a pair of parallel drums capable of hanging a wire and between the drums. When the wire is drawn by the dies, the pair of drums are provided so as to be freely rotated in the winding and reverse directions, respectively, and the pair of drums are provided so as to be capable of reciprocating in different directions in the axial direction of the drum, and The pair of dies is provided so as to be exchangeable with dies having different die diameters, and the pair of wires is made constant so that the path line of the wire passing from the one drum through the die to the other drum is constant and interference of the wire is avoided. The drums are moved in different directions and then drawn, and then replaced with dies having different die diameters, and the other drum passes through the dies and reaches the one drum. There the pass line to drawing method characterized by re drawability by moving the pair of drums in different directions from each other to avoid interference winding the wire with constant.

  According to a second aspect of the present invention, both ends of the wire are fixed to the pair of drums by a fixing tool.

  According to a third aspect of the present invention, there is provided an apparatus according to a third aspect of the present invention, comprising a pair of parallel drums around which a wire can be hung and a die disposed between the drums for drawing the wire. The pair of drums are provided so as to be able to rotate and rotate in the opposite directions, and can be reciprocated in different directions in the axial direction of the drums, and the dies can be exchanged with dies having different die diameters. From the other drum, the pair of drums are moved in different directions and drawn so as to make the path line of the wire passing from the drum through the die to the other drum constant, and avoiding interference winding of the wire. The pair of drums is arranged so as to make the pass line of the wire passing through the dies exchanged with dies of different diameters to one drum constant and avoid interference winding of the wire. In wire drawing apparatus characterized by comprising comprises a control unit for re-drawability is moved in different directions are.

  According to a fourth aspect of the present invention, there is provided the device according to the fifth aspect, further comprising a fastening device for fastening both ends of the wire to the pair of drums. The invention is characterized in that the fastening device comprises a chain member having a wire engaging / disengaging portion that can be engaged / disengaged at one end and a drum engaging / disengaging portion that can be engaged / disengaged with the drum at the other end. It is a feature.

  As described above, according to the first or third aspect of the present invention, when the wire is drawn by a pair of parallel drums on which the wire can be hung and a die disposed between the drums, the pair of drums is arranged. And a pair of drums are provided so as to be reciprocally movable in different directions in the axial direction of the drums, respectively, and the dies are provided so as to be exchangeable with dies having different die diameters. The pair of drums are moved in different directions and drawn in order to make the wire pass line from one drum through the die to the other drum constant and avoid interference winding of the wire, Change to a die with a different die diameter, keep the wire pass line from the other drum through the die to the one drum, and avoid interference winding of the wire. Therefore, the pair of drums are moved in different directions and redrawn, so that the drawing structure can be simplified and the installation space of the apparatus can be reduced, and the wires are not stacked. The wire can be wound up to prevent the wire from being damaged, and the wire drawing workability can be improved.

  Further, in the invention according to claim 2 or 4, since the fasteners for fixing both ends of the wire to the pair of drums are provided, both ends of the wire to the pair of drums are provided. In the invention according to claim 5, the fastening device has a wire rod engaging / disengaging portion capable of being engaged / disengaged at one end portion and an end portion of the wire rod, and the other end portion. Since the chain member has a drum engaging / disengaging portion that can be engaged with and disengaged from the drum, both ends of the wire rod can be securely attached to the pair of drums.

  1 to 10 show embodiments of the present invention. Reference numerals 1 and 2 denote drums. In this case, the outer peripheral surfaces of the pair of drums 1 and 2 are formed as smooth surfaces on which a wire W can be hung. Are arranged in parallel on the machine base M.

  3 is a die, and in this case, it is disposed between the pair of drums 1 and 2 in the die holder H and H of the machine base M.

In this case, the pair of drums 1 and 2 are provided so as to be freely wound up and rotated backward by control motors 1a and 2a and transmission mechanisms 1b and 2b, respectively, and the pair of drums 1 and 2 are controlled. The motors 1c and 2c and the guide portions 1d and 2d are provided to be reciprocally movable in different directions in the directions of the axes O ₁ and O _{2 of the} drums 1 and 2, respectively.

  Further, in this case, the die 3 is provided so as to be exchangeable with the die 3 having a different die diameter.

  Reference numeral 4 denotes a fastening device. In this case, a wire engaging / disengaging portion 5 that can be engaged / disengaged with the end of the wire W at one end and a drum engaging / disengaging with the drums 1 and 2 at the other end. The wire rod engaging / disengaging portion 5 is configured to fix the support piece 5a to the drums 1 and 2 and attach the engagement piece 5b to one end portion of the fastening device 4, and the engagement piece 5b. A wedge piece 5c capable of fixing the wire W is removably provided, a locking hole 5d is formed in the engaging piece 5b, and the engaging piece 5b is sandwiched between the supporting piece 5a and fitted in the locking hole 5d. The drum engagement / disengagement part 6 is provided with an engagement pin 6a attached to the other end of the fastener 4, and the drums 1 and 2 are engaged with and disengaged from the engagement pin 6a. A possible fitting groove 6b is formed, and the ends of the wire W are fixed to the pair of drums 1 and 2, respectively.

  A control unit 7 includes a program control circuit, and makes the pass line PL of the wire W passing from the one drum 1 through the die 3 to the other drum 2 constant and interfering with the wire W. In order to avoid winding, a pair of drums 1 and 2 are moved in different directions and drawn, and a wire rod that passes from one drum 2 to another die 3 having a different die diameter and then reaches one drum 1 In order to make the W pass line PL constant and avoid the interference winding of the wire W, the pair of drums 1 and 2 are moved in different directions and redrawn.

  Reference numeral 8 denotes a wire drum, which is rotationally driven by a control motor 8a and a transmission mechanism 8b, and supplies the wire W before drawing to the other drum 2, or guides the wire W after drawing from the drum 2. It is comprised so that winding is possible via 9 * 10.

Since this embodiment is configured as described above, first, as shown in FIG. 6, for example, a fixed-size wire W on the turntable F is fixed to the other drum 2 through the die 3 by the fixing device 4, and the drum 2 was winding rotary R _M, and the drum in order to avoid interference winding of the wire W with the control unit 7 for a constant pass line PL of the wire W extending to the other drum 2 through the die 3 2 is moved and wound on the drum 1 by the movement of the rotation axis O ₂ around the drum 2 R _M and axial O ₂ direction, it will be drawn.

Then, as shown in FIGS. 7 and 8, the die 3 is replaced with a die having a different die diameter, and the wire W wound around the other drum 2 is fixed to the one drum 1 through the die 3. the drum 2 is feeding rotation R _H causes the winding rotary R _M, and the control unit 7 from the other drum 2 through the die 3 constant pass line PL of the wire W extending to one drum 1 At the same time, in order to avoid interference winding of the wire W, the pair of drums 1 and 2 are moved in different directions and redrawn.

Next, as shown in FIGS. 9 and 10, the die 3 is replaced with a die having a different die diameter, and the wire W wound around the one drum 1 is fixed to the other drum 2 through the die 3. the drum 1 causes the winding rotary R _M is feeding rotation R _H, and the control unit 7 from one drum 1 through the die 3 to a constant pass line PL of the wire W extending to the other drum 2 At the same time, in order to avoid interference winding of the wire W, the pair of drums 1 and 2 are moved in different directions and redrawn, and the drawing by the drums 1 and 2 is repeated as necessary.

Accordingly, when the wire W is drawn by the pair of parallel drums 1 and 2 on which the wire W can be hung and the dies 3 disposed between the drums 1 and 2, the pair of drums 1 and 2 are wound and rotated R respectively. _M and a reverse rotation _RH are provided freely, and a pair of drums 1 and 2 are provided so as to be reciprocally movable in different directions in the directions of the axes O ₁ and O ₂ of the drums 1 and 2, respectively. The dies 3 having different diameters are provided interchangeably, and the pass line PL of the wire W passing from the one drum 1 through the die 3 to the other drum 2 is made constant and interference winding of the wire W is avoided. The pair of drums 1 and 2 are moved in different directions and drawn, and then replaced with the dies 3 having different die diameters, and from the other drum 2 through the dies 3 to the one drum 1 Pass line In order to keep L constant and avoid interference winding of the wire W, the pair of drums 1 and 2 are moved in different directions and redrawn to simplify the drawing structure and apparatus. The installation space can be reduced, and the drawing workability can be improved.

  Further, in this case, since the fastening members 4 for fastening both ends of the wire W to the pair of drums 1 and 2 are provided, the both ends of the wire W to the pair of drums 1 and 2 are fastened. In this case, the fastening device 4 is connected to the end portion of the wire W at one end, and to the drums 1 and 2 at the other end. Since the chain member having the detachable drum engaging / disengaging portion 6 is formed, both ends of the wire W can be securely attached to the pair of drums 1 and 2.

  The present invention is not limited to the above-described embodiment, and the drums 1 and 2, the die 3, the fastener 4, the structure of the control unit 7, circuit elements, and the like are appropriately changed and designed.

  As described above, the intended purpose can be sufficiently achieved.

1 is an overall front view of an embodiment of the present invention. 1 is an overall plan view of an embodiment of the present invention. It is a partial side view of the embodiment of the present invention. It is a partial side view of the embodiment of the present invention. It is a fragmentary top view of the example of an embodiment of the invention. It is an explanatory top view of the operation state of the example of an embodiment of the invention. It is an explanatory top view of the operation state of the example of an embodiment of the invention. It is a description front view of the operation state of the embodiment of this invention. It is an explanatory top view of the operation state of the example of an embodiment of the invention. It is a description front view of the operation state of the embodiment of this invention.

Explanation of symbols

W Wire 1 Drum 2 Drum 3 Die 4 Fastener 5 Wire engaging / disengaging part 6 Drum engaging / disengaging part 7 Control part

Claims (5)

  When a wire is drawn by a pair of parallel drums on which a wire can be hung and a die disposed between the drums, the pair of drums are provided so as to be capable of winding and rotating in a reverse direction and the pair of drums, respectively. Are provided so that they can be reciprocated in different directions in the axial direction of the drum, and the dies are exchanged to dies having different die diameters, and the wire material passing from the one drum to the other drum through the die. In order to keep the pass line constant and avoid interference winding of the wire rod, the pair of drums are moved in different directions and drawn, and then replaced with dies having different die diameters. The pair of drums are moved in different directions so as to make the pass line of the wire passing through to one drum constant and avoid the interference winding of the wire. Drawing method characterized by drawing.   The wire drawing method according to claim 1, wherein both ends of the wire are fixed to the pair of drums by a fixing tool.   A pair of parallel drums on which a wire can be hung and a die arranged between the drums for drawing the wire are provided, and the pair of drums are provided so as to be freely rotatable in a winding and reverse rotation, respectively. A pair of drums are provided so as to be reciprocally movable in different directions in the direction of the axis of the drum, and the dies are provided so as to be exchangeable with dies having different die diameters. In order to make the pass line of the wire to reach constant and avoid the interference winding of the wire, the pair of drums are moved in different directions and drawn, and the other die is replaced with a die having a different die diameter. In order to make the pass line of the wire passing through and one drum constant, and to avoid interference winding of the wire, the pair of drums are moved in different directions and redrawn. Wire drawing apparatus characterized by comprising comprises a control unit.   4. The wire drawing apparatus according to claim 3, wherein fastening devices are provided for fastening both ends of the wire to the pair of drums. The fastening device comprises a chain member having a wire engaging / disengaging portion that can be engaged / disengaged at an end of the wire at one end and a drum engaging / disengaging portion that can be engaged / disengaged from the drum at the other end. The wire drawing apparatus according to claim 3 or 4.

Images