JPS59232613A - Drawing device of wire rod - Google Patents

Abstract

PURPOSE:To prevent the generation of a die mark and to obtain a titled device capable of surely holding a wire rod at the time of its breakage by holding the wire rod by a pair of groups of tapered rolls, in a draw bench with a moving draw die whose one end is fixed to the wire rod. CONSTITUTION:A wire rod 1 whose one end is fixed by a fixing chuck 9, is drawn by a die mounted on a dolly 4A which is moved by a motor 19 and a chain. The wire rod 1 is held at a prescribed height so as not to spring out by a pair of plural tapered rolls 28 located at a bed frame 2A. When the dolly 4A approaches, a cylinder 18 is actuated by a signal of a photosensor 20 to lower the pair of tapered rolls 28. Further, the rolls 28 are passed and released automatically by a rotary actuator 29. The wire rod is always maintained at the prescribed height by the rolls 28, which prevent the generation of die marks as well as hold surely the wire rod at the time of tis breakage to prevent troubles.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wire handling and processing device.

2. Description of the Related Art Conventionally, a device called a draw bench as shown in FIGS. 1 to 3 has been known as one type of device for drawing and drawing wire rods. This drawing device places a wire rod 1 on the top of a base frame 2, inserts the wire rod 1 into a die device 3 fixed on the base frame 2, and inserts the tip of the wire rod 1 into a running cart 4. A hook 6 is attached to the V-tsuku 5 and is swingably installed on the traveling trolley 4.
The wire rod 1 is fed out of the base frame 2 by locking the wire rod 1 to the pin 8 of the Helles chain 7 running along the base frame 2 and moving the traveling trolley 4 to run on the base frame 2. The diameter of the C wire 1 is reduced by drawing it from the side 2a to the drawing side 2b.

By the way, in this drawing processing apparatus, the diameter of the wire 1 is reduced to a predetermined cross-sectional reduction ratio when the wire rod 1 is drawn once. For example, when the cross-sectional reduction ratio is 20.
%, it is necessary to repeat the above-mentioned drawing process about 7 times in order to produce a wire rod with a finished outer diameter of 4 mm from a flu mill with a diameter of 20 mm. Each time the above-mentioned drawing process [2] is repeated, not only is it necessary to transfer the wire 1 from the handling side 2b to the delivery side 2a, but also the delivery side 2a is almost the same as the drawing side 2b. A space for placing the long wire 44 is required. Therefore, the base frame 2 having a total length almost twice as long as the finished length of the wire rod 1 is installed, so that the wire 44 does not become warped.
There is a problem that leads to an increase in the scale of the equipment.

In view of the above-mentioned circumstances, the applicant proposed a "method for handling and processing wire rods" in which one end of the wire rod is fixed, and the diameter of the wire rod is reduced by moving the die from the fixed end side toward the free end side. I suggested it earlier. The present invention provides a wire drawing device that belongs to the same technical category as this "wire rod drawing and drawing method."

Hereinafter, one embodiment of the present invention will be explained with reference to FIGS. 4 to 10. In addition, the parts in the figure that are common to the conventional example are as follows:
The same reference numerals are replaced by 1 to simplify the explanation.

That is, in this drawing device, a jitotsu neck 9 for holding one end of the wire 1 is fixed to one end of a pair of base frames 2A, which have a total length slightly larger than the finished length of the wire 1 and are parallel to each other in the horizontal direction. A die 1o having a center hole through which the wire rod 1 is inserted for diameter reduction processing is mounted on a trolley 4A movably mounted on a base frame 2A, and further, on the front part of the trolley 4A, Hooks 6△ and 6A are swingably provided on each of the pair of base frames 2△, respectively, to be respectively engaged with pins 12 and 12 of endless chains 11 and 11 running at a speed.

Next, to explain the revision 1 of the base frame 2A and the truck 4Δ, first, the base frame 2Δ is the wheel 1 of the truck 4A.
It is composed of a running guide rail 14 on which the chain 3 rolls, and a guide rail 15 that guides the endless chain 11.
Sprockets 16Δ and 16B around which the endless chain 11 is wound are provided at both ends of the base frame 2Δ in the length direction.
are given 1ffJ each. The sprocket 16B on the other end side of the base frame 2Δ is connected to the drive device 17.
It is configured to be driven by.

Further, on either side of the pair of base frames 2Δ, the longitudinal direction of this base frame 2A (
spaced apart from each other along the moving direction of the dice 10),
A plurality of lifting and lowering devices (air cylinders in this embodiment) 188 to 18N are provided, and these lifting and lowering devices move in the direction of movement, which is indicated by the arrow in FIG. >have. Wire rod clamps 19A to 19N are fixed to the tip of each lifting device 18A to 18N, respectively, and these wire rod clamps 19A to 19N hold the wire rod 1 on the moving path of the die 10. It supports it in a straight line. Further, the wire rod cost (near the pig lamps 19A to 19N, the trolley 48 is provided with clamps 19A to 19A to receive each wire rod).
Sensors 20A to 2ON such as sensors 20A to 2ON, which detect when the trolley 4A approaches 19N, are installed.
When approaching the clamp, the wire rod actuates the lifting device of the clamp and moves the wire rod into the die 10.
This is to prevent interference between the carriage 4A and the wire clamp (faJ collision).

The wire cost will be explained in detail about the clamps 19A to 19N.These are as shown in FIG. 7 and FIG. Inside the casing 21 supported at the upper end of 18A to 18N, there are provided a gear 23A that can rotate horizontally around a shaft 22, and a gear 23B that meshes with the gear 23A and rotates horizontally around a shaft 24. , shafts 25△, 2bB are provided upright on these gears 23A, 23B, respectively.
is made to protrude above the casing 21 through an arc-shaped insertion hole 27 formed in the upper surface 26 of the casing 21, and vertical rollers 28A and 2813 are rotatably supported on the shafts 25A and 25B, respectively. , the shaft 22 is prevented from rotating by a rotary actuator 29.

As shown in FIG. 7, the vertical rollers 28Δ, 28'B are formed in a shape of a bar whose diameter increases upwardly, thereby preventing the upward movement of the wire 1-. He is now being restrained.

Furthermore, as shown in FIGS. 5 and 6, a receiver 30 is provided at the bottom of the base frame 2A to catch the wire 1 that has fallen due to breakage during drawing. The book 30 is supported by a link 31 so as to be able to move in parallel in the vertical direction.

Next, to explain the cart 4A, this cart 4
As shown in FIGS. 9 and 10, A is a hook 6A that is hooked to the bin 12 of the endless chain 11 by operating the air cylinder 32 and rotating the hook 6A around the bin 33. A die support frame 34 is installed on this cart 4A to support the center of the die 10 concentrically with the FA support point of the zigzag device 9 and at the same height as the bin 12 of the endless chain 11. It is being

In the drawing and punching device having grooves formed in this way, first, the cart 4Δ is placed on one end side of the base frame 2Δ (the side where the ticking device 9 is present), and then one end of the wire rod 1 is tapered. While processing the wire into a shape, it is passed through the die 10 and held by the C-chip 17 tuck device 9, and the wire material at the position where it does not interfere with the carriage 4△ is removed from the upper tube of the clamps 19A to 19N, and the wire rod is inserted into the rotary actuator 29 by the J.
, -) to force the vertical rollers 28A and 28B toward each other so that the wire 1 is held between them. and,
When the hook OA of the trolley 4A is hooked to the bin 12 of the endless chain 11 and the endless chain 11 is run, the trolley 4A runs from one end of the base frame 2△ to the other end, and as a result, the dice 10 is processing wire rod 1 to reduce its diameter.

At this time, each sensor (for example, 20B) is connected to the trolley 4.
Detecting the approach of A, the carriage 4A approaches J, and the lifting device (e.g. 18B) and the wire rod supported by the stomach lowering @ 18B operate the rotary actuator 29 of the clamp 19B, and the pair of Vertical roller 28△, 28B
(Zunawara vertical rollers 28
.DELTA., 2813 is moved from the position indicated by the chain line in FIGS. 7 and 8 to the position indicated by the solid line), and the wire rod clamp 19B is lowered to retreat from the movement path to the carriage 4.

Next, the trolley 4△ runs roughly and carries it to the next sensor 2.
When 0C is detected, the sensor 20C
Then, by operating the row reactor 29 in the opposite direction to the above case, the wire rod clamp 19B is raised and returned to the position where it holds the wire rod 1 again, and the pair of vertical rollers 2
8△ and 28B clamp the wire 1 again, and operate the lifting device 18G and the wire clamp 19C to release the holding (clamping) of the wire 1, and move the wire rod 19C through the movement of the trolley 4A. It is evacuated to a position where it can escape from the route.Furthermore, as the trolley 4Δ travels, the sensors 20D to 2ON at each position operate one after another.
Each lifting device 18D to 18N and wire rod clamp 19
L) to 19N repeat the above operation in sequence.

Here, add 2 pieces of the low reactant and 1 screw.
The shaft 22 is rotated by rotating the cylinder with air pressure, and the rotation of the shaft 22 causes a pair of vertical rollers 2 to rotate.
8A and 28B rotate toward or away from each other to release the wire 1 from the clamped or clamped state.

In addition, when the dolly 4 is moved up and down due to minute irregularities 1 on the running guide rail 14 during the drawing process, the die 10b moves up and down, but in such a case, the pair of vertical rollers 28A , 28B are caused by the pressing force of the wire 1 trying to follow the movement of the die 10 acting on its tapered surface.

They are spaced a little apart from each other to allow vertical movement of the wire rod 1.

If a wire breakage occurs at the 95th stitch Δ1 during the drawing process, the tension of the wire 1 (pressing horn) is lost, so that -ta·1 is applied by the rotary actuator 29. Vertical roller 28△, 2
8B move closer to each other and press the wire 1, thereby preventing the danger of the wire 1 being pulled out and flying out above the processing equipment. Although the rotary actuator is used to apply a force to the vertical rollers, an air cylinder may be used in place of this rotary actuator. :stomach.

Furthermore, the outer periphery of the vertical rollers may be coated with an elastic body such as hard rubber so that the minute vibrations of the -C wire are absorbed by this elastic body.

As is clear from the above description, the present invention provides a pair of vertical rollers in the shape of an inverted truncated cone on both sides of the movement path of the die entering the wire handling and processing device, and a rotary actuator attached to the vertical rollers. This method is characterized in that the wire rods are clamped by applying a biasing force in the direction of approaching each other, so that the cart and therefore the die move up and down during handling and processing. Since the interval between the @D-ra is adjusted to allow vertical movement of the wire in response to the movement of the die, it is possible to prevent the wire and the die from moving relative to each other in the radial direction, thereby preventing the die from digging into the surface of the wire. It is important to reduce the diameter of the wire without leaving any scratches such as die marks caused by Move close to i5 (to hold down the material,
This has the effect of preventing the wire from jumping out.

[Brief explanation of drawings]

Figures 1 to 3 show a conventional example in which a wire is drawn and processed, with Figure 1 being a side view of the entire drawing device, and Figure 2 showing the chain line II in Figure 1. FIG. 3 is a plan view taken along the line of arrows ■-■ in FIG. 2, and FIGS. A schematic plan view of the entire structure, FIG. 5 is a schematic side view of the chain I, FIG. 6 is an enlarged vertical sectional view taken along the line of arrow Vl-Vl in FIG. FIG. 8 is a plan view taken along the line of arrows ■-■ in FIG. 7, FIG. 9 is a plan view of the truck, and FIG. 10 is a side view thereof. In the figure, 1 is a wire rod, 2A is a base frame, 4A is a trolley, 9 is a tilting device, 10 is a die, 18A to 18
N is a lifting device, 19A to 19N are wire rod holder clamps, 2
1 is the casing, 23△, 23B is the gear, 28A, 2
8B is a vertical roller, and 29 is a rotary actuator. 58.11. 8 To the Commissioner of the Japan Patent Office in 1971 1. Indication of the case 1988 Patent Application No. 1 (16077 2) Name of the invention Wire drawing processing device 3. Person making the amendment Patent applicant (j/g) Fujikura Electric Cable Co., Ltd. 4. Agent: Masatake Shiga, Patent Attorney, 6th floor, Tokyo Ekimae Building, 2-1-5 Yaesu, Chuo-ku, Tokyo (6490) 5. Call for "detailed description of the invention" in the specification to be amended. 6. Amendment Contents (1) In the 3rd line of page 1, page 1 of the specification, the phrase ``drawing process'' is corrected to ``pulling process.'' (2) The period at the end of line g, page 10 of the specification is deleted. (3 ) On page 10, line 12 of the specification, "tension" has been corrected to "tension."

Claims (1)

[Claims] A die (10) is fitted onto the fixed end side of the wire rod 1 whose one end is fixed to the pick device (9), and the die (10)
of? 5I Perform diameter reduction of the wire rod (1) by moving the wire rod (1) from the fixed end side to the free end side.
For drawing the material, use the die (10
) have a tapered shape with the upper part having the maximum diameter, and a pair of vertical l]-ra (to 28, 2
8B) is provided.