JP2009113084A - Wire drawing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire drawing machine having excellent alignment between a wire and a dice. <P>SOLUTION: The dice 1 and a cone pulley 2 are disposed so as to be dipped in a lubricant 4, a turn pulley 5 is disposed above the liquid face F of the lubricant 4, the dice 1 and the cone pulley 2 so as not to be dipped in the lubricant 4, a portion 7a stretched on the cone pulley 2 through the dice 1 from the turn pulley 5 of the wire 7 and the dice 1 are disposed on a vertical line L from each of wire passing surfaces 17-20 of the turn pulley 5, and a weight W of the dice 1 is applied to the wire 7 in a direction parallel to an wire drawing direction Y of the wire 7, so that the alignment between the wire 7 and the dice 1 can be maintained. When the dice 1 is supported by a dice holder 11 movably in a horizontal direction perpendicular to the vertical line L, the dice 1 moves in the direction same as that of movement in a horizontal direction from the vertical line L of the wire 7, and the alignment between the wire 7 and the dice 1 can be further preferably maintained. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a wire drawing machine that achieves good alignment between a wire and a die.

FIG. 4 shows a wire drawing machine disclosed in Patent Document 1. In FIG. 4 a, the die 1 and the cone pulley 2 are immersed in the lubricating liquid 4 placed in the lubricating tank 3, and the level of the lubricating liquid 4 without the turn pulley 24 being immersed in the lubricating liquid 4. F, the die 1 and the cone pulley 2 are disposed above the wire bobbin 6 wound around the unwinding bobbin 6 from the unwinding bobbin 6 through the turn pulley 24, the die 1, the cone pulley 2 and the capstan 8 in this order. The take-up bobbin 9 is passed through, the take-up bobbin 9 and the cone pulley 2 are driven by a motor (not shown), and the wire 1 is drawn and drawn so that the die 1 has a thin wire diameter. The wire 7 is wound around the winding bobbin 9. However, as shown in FIG. 4b, a portion 7b (hereinafter referred to as a wire specifying portion 7b) spanned from the turn pulley 24 of the wire 7 via the die 1 to the cone pulley 2 is set obliquely. In this structure, the weight W of the die 1 is added in the direction intersecting the drawing direction Y of the wire 7. Therefore, if the die 1 is not fixed to the die holder 25, as shown in FIG. 4c, when the tension of the wire specific portion 7b is loosened, the die 1 moves downward, There is a drawback that the alignment with the die 1 is out of alignment.
JP-A-8-155532

  The problem to be solved by the invention is that the alignment between the wire and the die is out of alignment.

  In the wire drawing machine according to the present invention, the die and the cone pulley are disposed soaking in the lubricating liquid contained in the lubricating tank, and the turn pulley is disposed above the die and the cone pulley without being soaked in the lubricating liquid. The wire wound around the unwinding bobbin is passed from the unwinding bobbin through the turn pulley, die, cone pulley, capstan to the winding bobbin in order, and the motor drives the cone pulley and winding bobbin, and the die In a wire drawing machine where the wire is drawn so as to reduce the wire diameter, and the drawn wire is taken up by a take-up bobbin, the wire is pulled from a turn pulley of the wire to a cone pulley via a die. The weight of the die is reduced by placing the part and the die on the vertical line from the turn pulley. The most important feature that applied in the direction parallel to the drawing direction of the wire. The die is supported by the die holder so as to be movable in the horizontal direction perpendicular to the vertical line from the turn pulley, and the die holder is provided with a wire escape portion, or the wire passage surface portion around which the wire of the turn pulley is wound is turned. Groove composed of a continuous mortar-shaped surface so that the slope gradually decreases in diameter from both ends in the direction parallel to the axis constituting the rotation center of the pulley to the center. It may be configured as.

  In the wire drawing machine according to the present invention, the portion of the wire that is passed from the turn pulley to the cone pulley via the die and the die are arranged on the vertical line from the turn pulley, so that the weight of the die is wired to the wire. Therefore, there is an advantage that alignment between the wire and the die can be appropriately maintained. If the die is supported by the die holder so as to be movable in the horizontal direction perpendicular to the vertical line from the turn pulley, and if the die holder is provided with a wire escape portion, the alignment between the wire and the die can be more suitably maintained. There is an advantage. The wire connection surface part around which the wire of the turn pulley is wound is a circular shape with a slope whose diameter gradually decreases from both ends in the direction parallel to the axis constituting the rotation center of the turn pulley toward the center. If it is configured as a groove composed of a continuous mortar-shaped surface, the wire passage position through which the wire passes in the wire passage surface portion becomes the smallest diameter portion, and the wire is parallel to the axis in the wire passage surface portion. There is an advantage that it is positioned at a portion having the smallest diameter in the wire passing surface portion so as not to move in the direction.

  FIG. 1a shows a wire drawing machine. FIG. 1b shows the side of the cone pulley 2 as seen from the S direction shown in FIG. FIG. 1c shows a side view of the turn pulley 5 viewed from the S direction shown in FIG. FIG. 2 shows a cross section in which the die 1 and the die holder 11 are cut in the wire drawing direction Y of the wire 7. FIG. 3 shows the relationship among the die 1, the cone pulley 2, the turn pulley 5 and the wire 7.

  The wire drawing machine will be described with reference to FIG. In the wire drawing machine, the die 1 and the cone pulley 2 are disposed so as to be immersed in the lubricating liquid 4 contained in the lubricating tank 3, and the turn pulley 5 is not immersed in the lubricating liquid 4 and the liquid level F of the lubricating liquid 4 A wire 7 disposed above the die 1 and the cone pulley 2 and wound around the unwinding bobbin 6 is wound from the unwinding bobbin 6 through the turn pulley 5, the die 1, the cone pulley 2, and the capstan 8 in this order. Passed through the bobbin 9, the cone pulley 2, the take-up bobbin 9, and the like are driven by a motor (not shown), the wire 1 is drawn so that the diameter of the wire 7 is reduced, and the drawn wire 7 Is wound around a take-up bobbin 9, and in particular, a portion 7a (hereinafter referred to as a portion 7a) of the wire 7 which is passed from the turn pulley 5 of the wire 7 through the die 1 to the cone pulley 2. And the die 1 are arranged on the vertical line L from each of the wire connection surface portions 17 to 20 of the turn pulley 5, so that the weight W of the die 1 is increased to the wire 7. Therefore, there is an advantage that the alignment between the wire 7 and the die 1 can be appropriately maintained.

  In FIG. 1 a, the case where there are four wire specific portions 7 a is illustrated, so that there are also four dice 1, and one wire specific portion 7 a is passed through each die 1. . All of these dies 1 are supported by a plate-shaped die holder 11 so as to be individually movable in a horizontal direction perpendicular to the vertical line L. For example, each of the dies 1 is placed on a flat horizontal upper surface of the die holder 11 so as to be individually movable in a horizontal direction orthogonal to the vertical line L. The portion of the wire 7 that returns from each of the wire passage surface portions 12 to 15 of the cone pulley 2 to each of the wire passage surface portions 17 to 20 of the turn pulley 5 is not parallel to the vertical line L and may be inclined.

  The cone pulley 2 will be described with reference to FIG. The cone pulley 2 has four wire connection surface portions 12; 13; 14; 15. The wire connection surface portions 12 to 15 are individually arranged on four circumferences having different diameters around the shaft 16 constituting the rotation center of the cone pulley 2. The wire connecting surface portion 12 having the largest diameter is arranged on one end side of the shaft 16, the wire connecting surface portion 13 having the next largest diameter is arranged next to the wire connecting surface portion 12, and then the wire conductor having the next largest diameter is passed. The wire surface portion 14 is disposed next to the wire connection surface portion 13, and the wire communication surface portion 15 having the smallest diameter is disposed next to the wire connection surface portion 14. That is, the wire connection surface portions 12 to 15 constitute four stages such that the diameter decreases from the one end portion side of the shaft 16 toward the other end portion side. Each of the wire connection surface portions 12 to 15 is configured as a continuous surface such that a flat surface in a direction parallel to the shaft 16 is a circle centered on the shaft 16.

  The turn pulley 5 will be described with reference to FIG. The turn pulley 5 has four wire connection surface portions 17; 18; 19; The wire connection surface portions 17 to 20 are individually arranged on four circumferences having different diameters around the shaft 21 that constitutes the rotation center of the turn pulley 5. The wire connecting surface portion 17 having the largest diameter is disposed on one end portion side of the shaft 21, the wire connecting surface portion 18 having the next largest diameter is disposed next to the wire connecting surface portion 17, and then the wire conductor having the next largest diameter is disposed. The wire surface portion 19 is disposed next to the wire connection surface portion 18, and the wire communication surface portion 20 having the smallest diameter is disposed next to the wire connection surface portion 19. That is, the wire connection surface portions 17 to 20 form four stages such that the diameter decreases from the one end side of the shaft 21 toward the other end side. Each of the wire connection surface portions 17 to 20 has a V-shape that is continuous so that a slope whose diameter gradually decreases from both ends in the direction parallel to the shaft 21 toward the center becomes a circle centered on the shaft 21. Or it is comprised as a groove | channel which consists of an arc-shaped mortar surface. Therefore, the wire passing position through which the wire 7 passes in each of the wire passing surface portions 17 to 20 is the portion with the smallest diameter. That is, there is an advantage that the wire 7 is positioned at a portion having the smallest diameter in each of the wire connection surface portions 17 to 20 so as not to move in a direction parallel to the shaft 21 in each of the wire connection surface portions 17 to 20. is there.

  The dice 1 and the dice holder 11 will be described with reference to FIG. The die 1 includes a processed hole 22. The die holder 11 is provided with a wire escape portion 23. The die 1 is placed on the flat horizontal upper surface of the die holder 11 so as to be individually movable in the horizontal direction perpendicular to the vertical line L. For example, when the wire 7 moves from the vertical line L to the left side, the die 1 slides to the left on the upper surface of the die holder 11, and when the wire 7 moves from the vertical line L to the right side, the die 1 is moved accordingly. Slides on the upper surface of the die holder 11 to the right. That is, as the wire 7 moves in the horizontal direction from the vertical line L, the die 1 moves in the same direction as the movement direction of the wire 7, and the alignment between the wire 7 and the die 1 is more suitably maintained. There is an advantage that you can.

  The relationship among the die 1, the cone pulley 2, the turn pulley 5, and the wire 7 will be described with reference to FIG. The shaft 16 of the cone pulley 2 and the shaft 21 of the turn pulley 5 are opposed to each other horizontally and in parallel. Then, the wire 7 is wound around each of the wire connection surface portions 12 to 15 of the cone pulley 2 several times and returns to the turn pulley 5, and the wire specifying portion 7 a is displaced in the direction indicated by the arrow X. . The dice 1 are supported by the dice holder 11 so as to be individually movable in a horizontal direction perpendicular to the vertical line L. Therefore, even when the wire specific portion 7a is displaced in the direction indicated by the arrow X, the die 1 moves in the same direction as the movement direction of the wire 7 along with the displacement, and the alignment between the wire 7 and the die 1 is performed. There is an advantage that can be more suitably maintained.

  In FIG. 2, the wire escape portion 23 is an element for escaping so that the wire 7 does not come into contact with the die holder 11. Therefore, the wire escape portion 23 is formed in the integrated die holder 11 as a through hole in the vertical direction, or in the vertical direction and one direction. It may be provided as a groove opened on the side, but the gap between the two die holders 11 is defined as the wire escape portion 23 by disposing the two die holders 11 apart from each other in the horizontal direction. It may be formed.

Fig. a is a schematic front view of the wire drawing machine, Fig. b is a side view of the cone pulley viewed from the S direction of Fig. a, and Fig. c is a side view of the turn pulley viewed from the S direction of Fig. a. Form). Sectional drawing (best form) of a die and a die holder. The schematic diagram explaining the alignment between a die | dye and a wire (best form). Fig. a is a schematic front view of the wire drawing machine, and Figs. b and c are schematic diagrams for explaining the relationship between a die and a wire (conventional).

Explanation of symbols

  1 is a die, 2 is a cone pulley, 3 is a lubricating tank, 4 is a lubricating liquid, 5 is a turn pulley, 6 is an unwinding bobbin, 7 is a wire, 7a; 7b is a wire specific part, 8 is a capstan, 9 is wound Take bobbin, 10 is a missing number, 11 is a die holder, 12 to 15 are wire connection surface portions, 16 is a shaft, 17 to 20 are wire connection surface portions, 21 is a shaft, 22 is a processing hole portion, 23 is a wire escape portion, 24 is a turn pulley, 25 is a die holder, F is a liquid surface, L is a vertical line, X is a direction in which the specific portion 7a is displaced, W is a weight, and Y is a wire drawing direction.

Claims (3)

  Dies and cone pulleys are placed soaked in the lubricating liquid contained in the lubrication tank, the turn pulleys are placed above the die and cone pulleys without being soaked in the lubricating liquid, and the wire is unwound from the bobbin to turn the pulleys The wire is passed through the winding bobbin through the die, cone pulley and capstan in order, and the motor drives the cone pulley and winding bobbin, and the wire is drawn so that the die thins the wire diameter. In the machine, the part of the wire that was passed from the turn pulley to the cone pulley via the die and the die were placed on the vertical line from the turn pulley, so that the load of the die was parallel to the wire drawing direction of the wire. A wire drawing machine characterized in that it is applied in the direction of the wire.   The wire drawing machine according to claim 1, wherein the die is supported by the die holder so as to be movable in a horizontal direction perpendicular to the vertical line from the turn pulley, and the die holder is provided with a wire escape portion.   The wire connection surface part around which the wire of the turn pulley is wound is a circular shape with a slope whose diameter gradually decreases from both ends in the direction parallel to the axis constituting the rotation center of the turn pulley toward the center. The wire drawing machine according to claim 1, wherein the wire drawing machine is configured as a groove having a continuous mortar-like surface.

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