JPH0241364B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention involves annealing a wire rod wound around a bobbin made of a heat-resistant material in a heat treatment furnace, and then rolling the wire rod wound around the wire-wound bobbin through a continuous line. Regarding the method of wire drawing by processing above.

(Prior art) As shown in FIG. 7, a general wire drawing method involves annealing a wire rod 102 wound into a coil as it is, and then annealing the coiled wire rod 102 with an acid such as hydrochloric acid solution or sulfuric acid solution. The wire rod 102 is immersed in a pickling tank containing a cleaning solution to remove scale, then immersed in a water washing tank to remove the pickling solution adhering to the wire rod 102, and then subjected to lubrication treatment before being transferred to a wire drawing die. Wire drawing was carried out through the line.

However, in the above wire drawing method, the coiled wire 10
The processing in each step of step 2 and the movement between them were performed manually, which was extremely unproductive.

Furthermore, if the wire rods 102 wound into a coiled shape are annealed as they are, the wire rods 102 will partially adhere to each other due to the scales on their surfaces. If the coiled wire rod 102 is immersed in the pickling tank in this state,
The pickling solution does not penetrate sufficiently into the bonded area,
As a result, scale cannot be removed, and even if the adhesive is immersed in a washing tank, the pickling solution remaining on the bonded area cannot be washed away sufficiently. Therefore, before the pickling treatment, the coiled wire rod 102, which has been annealed and has become partially adhesive, is manually separated and peeled off. This manual wire rod 10
The second stripping operation is also very unproductive.

Therefore, a method was developed in which the series of processes of unwinding the wire from the bobbin, pickling the wire, washing with water, lubrication, and passing it through a wire drawing die were carried out on a continuous line.
It is disclosed in Publication No. 3761.

(Problems to be Solved by the Invention) In the method disclosed in the above-mentioned publication, the wire rod fed out from the bobbin is heat-treated by applying electricity, and then pickling and water washing are performed continuously. Therefore, the wire must be rapidly cooled by washing after heat treatment, and this method cannot be applied to steel wire, which cannot reach the hardness suitable for wire drawing unless it is slowly cooled by air cooling after heat treatment. This method can only be applied to wires made of limited materials such as wire.

Therefore, the wire rod is wound around a bobbin and placed in a heat treatment furnace for heat treatment, and then a series of steps are carried out on the line, including feeding out the wire through a fryer, pickling, water washing, lubrication, and passing it through a wire drawing die. It is possible that

However, conventional fryer devices are equipped with a rotating member that is rotatable relative to a bobbin that is fixed to a stationary side, and a guide member that is attached to this rotating member and located radially outward of the bobbin. By pulling the wire wound around the guide member using a drawing device, the rotating member is rotated and the wire is drawn out from the bobbin. When paying out wire using such a fryer, if the wire is heat-treated while being wound around the bobbin, the wire wound around the bobbin may partially pass through the scale generated during the heat treatment. Because they are glued to each other, the rotation of the rotating member is no longer smooth, a large tension is applied to the wire, the wire is stretched more than necessary, and the diameter becomes smaller, making it impossible to achieve the desired diameter. If the diameter of the wire is too small or the diameter of the wire is small, the problem arises that the wire will be cut between the bobbin and the guide member.

The present invention aims to solve the above problems.

(Means for Solving the Problems) A feature of the present invention is that a wire rod is fully wound around a bobbin made of a heat-resistant material, the bobbin is placed in a heat treatment furnace as it is, the wire rod is annealed, and the wire rod is annealed in a heat treatment furnace. By taking it out and setting it in the fryer device, the rotating member of the fryer device can be rotated with respect to the bobbin fixed on the stationary side, and the peeling member attached to the rotating member and located radially outward of the bobbin can be rotated. The wire is wound around the roll and the guide member, and then the wire is pulled by a drawing device to rotate the rotating member, and the peeling roll is forcibly rotated in the opposite direction to the rotating direction of the rotating member. The wire is drawn from a bobbin, subjected to pickling, water washing, lubrication, etc., and then passed through a wire drawing die on a continuous line.

(Function) In the method of the present invention, since the wire rod is heat-treated while being wound around the bobbin, the wire rod is partially bonded through the scale.

Therefore, the rotating member of the flyer device may not be able to rotate smoothly with only the tensile force of the wire rod by the drawing device due to mutual adhesion of the wire rods, and a large tension is applied to the wire rod while drawing out the wire rod, causing the wire rod to It may get disconnected.

However, in the method of the present invention, by forcibly driving the peeling roll to rotate in a direction opposite to the rotating direction of the rotating member, there is no problem in feeding out the wire from the bobbin.

That is, as shown in FIG.
Due to the tension of the wire rod 2 by 1, the rotating member 11
rotates in the direction of arrow B, and the wire rod 2 is fed out from the bobbin 1. Even if the rotation of the rotating member 11 is to be restricted due to mutual adhesion of the wire rods 2 by the scale, the forced rotation drive direction of the peeling roll 15 is the direction in which the wire rod 2 is pulled, so the wire rod 2 can only be pulled out by the drawing device 31. The rotating member 1 also receives a tensile force from the peeling roll 15.
1 increases, the wire rods 2 are encouraged to separate from each other, and the rotating member 11 rotates smoothly.
The wire rod 2 continues to be fed out.

(Example) Embodiments of the present invention will be described below based on the drawings.

FIG. 6 shows a state in which the wire rod 2 is fully wound around the steel bobbin 1, and in the present invention, the wire rod 2 is annealed in this state in a heat treatment furnace. And the second figure is
The bobbin 1 taken out of the furnace is transferred from the bobbin 1 to the wire rod 2.
The figure shows a state where it is set in a fryer device 3 that dispenses.

The fryer device 3 has a base 4 placed on the floor, on which the bobbin 1 is attached to the lower flange 6.
are placed and fixed by polymerizing. The fryer device 3 also has a through hole 5 provided in the center of the base 4.
and a vertical shaft 8 which is inserted through shaft holes 7, 7 provided at the center of both upper and lower flanges 9 and 6 surfaces of the bobbin 1. A flange 10 that is superimposed on the upper flange 9 of the bobbin 1 is integrally provided in the middle of the vertical shaft 8 . The upper end of the vertical shaft 8 is a tapered shaft support 8a, and a flanged cylindrical steel rotating member 11 is rotatably supported on this shaft support 8a coaxially with the vertical shaft 8. An electromagnetic brake is provided on the upper surface of the flange 10 as a brake 12 for stopping the rotation of the rotating member 11.

Three arms 13a, 13b, and 13c extend radially from the rotating member 11.

A rubber wheel 14 that can freely roll on the upper flange 9 of the bobbin 1 is attached to the first arm 13a. The second arm 13b is located radially outward of the upper flange 9 of the bobbin 1, its axial direction is parallel to the vertical axis 8, and its lower portion is located at least halfway through the body of the bobbin 1. Peeling roll 1
5 is installed. The third arm 13c has a radially outer part of the upper flange 9 of the bobbin 1,
In addition, it is located in the middle of the body of the bobbin 1, and the vertical axis 8
A pulley having an axis 16' perpendicular to is mounted as a guide 16 for the wire 2. Note that each arm 1
3a, 13b, 13c do not extend directly from the rotating member 11, but instead connect the second arm 13b to the first arm.
It may also be an indirect arrangement such as extending from the arm 13a.

A driving device 2 is provided on the upper part of the rotating member 11.
An electric motor is provided as 0, and its rotating shaft 17
The pulley 18 attached to the peeling roll 1
The belt 19 is attached to the pulley 15' provided on the top of the
is being strung up. Thereby, the peeling roll 15 operatively connected to the drive device 20 is rotated in a direction opposite to the rotation of the rotating member 11 due to the feeding of the wire rod 2 .

Next, the wire rod 2 is let out from the bobbin 1 and wound around the peeling roll 15 and the guide member 16. Thereafter, the wire rod 2 is attached to a fixed part (for example, the ceiling of a factory) 21 above the fryer device 3, as shown in FIG.
The tension adjustment device 22 is wound around rotatable pulleys 23, 23 at both ends of the tension adjustment device 22 attached to the tension adjustment device 22. One end of this tension adjustment device 22 is pivotally attached to the fixed part 21, and the other end is elastically attached to the fixed part 21 via a spring 24.

Next, the wire rod 2 passes through a first pickling tank 25a containing a hydrochloric acid solution as a pickling solution, then passes through a removal device 26 for the hydrochloric acid solution adhering to the running wire 2, and then passes through a removal device 26 containing hydrochloric acid solution as a pickling solution. Second pickling tank 2 containing liquid
5b, then passes through the removal device 26 for the sulfuric acid solution adhering to the running wire 2, and then passes through the first
It passes through the water washing device 27a, then passes through the water washing tank 28 containing water, then passes through the second water washing device 27b, then passes through the water removal device 26 adhering to the running wire 2, and then the lubricating oil. The wire passes through a lubricating tank 29 containing a wire, then passes through a wire drawing die 30, and finally is wound onto a drawer bobbin 32 which is rotationally driven by a drawer device 31. here,
The drawer device 31 has a built-in device that stops the rotation of the drawer bobbin 32 after it has rotated a certain number of times, so that the wire rod 2 of a certain length can be wound around the drawer bobbin 32.

A drawer bobbin 32 is provided between the drawer device 31 and the electromagnetic brake 12 of the rotating member 11.
Electrical wiring is provided to operate the electromagnetic brake 12 at the same time as the rotation of the motor stops.

The removing device 26 includes a hollow housing 33 using a T-shaped pipe joint, as shown in FIG. A synthetic resin female member 36 having a tapered nozzle hole 35 is provided at one end and the other end of the housing to constitute an ejector portion 34 on one end side, and a tapered tip portion 37 facing the inner circumferential surface of the nozzle hole 35. A male member 38 made of synthetic resin is screwed together so that it can move forward and backward. A through hole 39 is provided in the male member 38 on the same axis as the nozzle hole 35 so that the running wire 2 inserted through the nozzle hole 35 passes through the male member 38 . Further, the hollow housing 33 is provided with an inlet 40 that communicates with a blower (not shown) to introduce pressurized air into the hollow housing 33. Note that the female member 36 is attached to the hollow housing 3
3, and only the male member 38 may be screwed together and attached so that it can move forward and backward, or conversely, only the female member 36 can be screwed together and attached so that it can move forward and backward. Good too.

Next, as shown in FIG. 4, the first water washing device 27a has a notch 42 in the upper circumferential surface of the cylindrical hollow member 41 perpendicular to the running direction of the wire rod 2, which communicates with the inside thereof.
are provided in the same number as the running wires 2, and these notches 4
A running wire rod 2 passes through the inside of the wire rod 2. Further, the hollow member 41 communicates with an unillustrated water supply source that supplies water into the hollow member 41 via a water supply pipe 41'.

Next, as shown in FIG. 5, in the second water washing device 27b, a groove 44 is provided in the axial direction on the upper circumferential surface of the cylindrical tube 43 arranged in the running direction of the wire rod 2,
The running wire 2 is inserted into the pipe 43 through the split groove 44 . Further, the outlet side end 43' of the pipe 43 communicates with an unillustrated water supply source that supplies water into the pipe 43 via the water supply pipe 43''.
The inlet side is located at an angle so that the inlet side is lower than the outlet side.

In the above configuration, when the wire rod 2 is wound around the drawer bobbin 32 by the drawer device 31, the wire rod 2 is pulled in the direction of the arrow A in FIG. The wire rod 2 is fed out from the bobbin 1 as it rotates in the B direction. The fryer device 3 can be easily set on the bobbin 1 by simply inserting the vertical shaft 8 into the shaft hole 7 of the bobbin 1. Further, since the rotating member 11 is rotatably and detachably supported by the tapered shaft support 8a, the rotating member 11 can be easily assembled without shifting the center of rotation.

The rotation of the rotating member 11 is balanced by the wheels 14 connected to the first arm 13a. Furthermore, since the wheel 14 is made of rubber, the frictional force with the upper flange 9 of the bobbin 1 causes the rotating member 11 to
This has the effect of preventing the rotational speed of the wire rod 2 from becoming faster than the winding speed of the wire rod 2 due to inertia, and can prevent the wire rod 2 from sagging and tangling.

The peeling roll 15 is rotationally driven in a direction opposite to the rotation of the rotating member 11, so that the peeling roll 1
5 pulls the wire rod 2 in the direction of arrow C in FIG. 2, that is, in the direction in which the wire rod 2 is fed out. Now, if the rotating member 11 is rotated only by the pulling force of the drawing device 31 and the wire rod 2 is paid out from the bobbin 1, the adhesive force of the wire rod 2, which has become partially adhesive through the scale due to annealing, will , the wire rod 2 may be cut without the rotating member 11 rotating. However, by applying a pulling force in the direction in which the wire rod 2 is paid out by the peeling roll 15, the pulling force is applied to the wire rod 2 by both the drawing device 31 and the peeling roll 15, and as a result, the rotating member 11 The rotational force increases, the peeling of the wire rod 2 is promoted, the rotation of the rotating member 11 is prevented from being restricted, and the wire rod 2 is not cut.

The tension adjusting device 22 equalizes the tension acting on the wire 2, thereby preventing the wire from sagging or breaking on the wire drawing line.

In order to confirm the effect of the forced rotational drive of the peeling roll 15, once the rotation of the peeling roll 15 is stopped and the wire rod 2 is pulled by only the drawing device, the spring 24 of the tension adjustment device 22 is expanded. Without the spring 24, the tension acting on the wire rod 2 would be large, and when the peeling roll 15 is forcibly rotated again, the spring 24 contracts and the wire rod 2
It was confirmed that the feeding became smoother.

Next, when the running wire 2 with the hydrochloric acid solution attached to it by passing through the first pickling tank 25a passes through the ejector part 34 of the removing device 26, the pressurized air introduced from the inlet 40 is passed through the nozzle hole at high speed. By spouting from 35, the hydrochloric acid solution adhering to the running wire 2 can be completely removed. Similarly, the second
The sulfuric acid solution and water that adhere to the running wire 2 in the pickling tank 25b and the water washing tank 28 can also be completely removed by passing them through the removal devices 26, respectively. Furthermore, although the jetting speed of the pressurized air from the nozzle hole 35 required to remove the adhering liquid varies depending on the thickness of the running wire 2, the distance between the inner circumferential surface of the nozzle hole 35 and the tip 37 is By being able to adjust the jet speed, it is possible to prevent large noise from being generated by the jet of pressurized air.

Further, in the first water washing device 27a, the hollow member 41
The water sent to flows out from the notch 42, and the running wire 2 passes through this, allowing effective washing. Furthermore, in the second water washing device 27b, by sending water into the pipe 43, the running wire 2 passes through the water flowing from the outlet side to the inlet side of the running wire 2, thereby performing complete water washing. be able to.

Then, the wire rod 2 is drawn to a desired diameter by passing through a wire drawing die 30 and wound around a drawer bobbin 32. When a predetermined amount of wire 2 is wound around this drawer bobbin 32, the drawing device 31 stops pulling the wire 2, and at the same time, the electromagnetic brake 12 is activated, and the rotating member 11 is moved by inertia.
The wire rod 2 does not continue to be fed out without stopping its rotation, and the wire rod 2 can be prevented from becoming tangled.

(Effects of the Invention) According to the present invention, when performing a series of wire drawing processes on a continuous line, the wire rod wound around the bobbin set in the flyer device is not only pulled by the drawing device, but also It can be stretched by forced rotation of a peeling roll. As a result, the rotating member of the fryer device receives rotational force not only from the drawing device but also from the peeling roll, and it is possible to promote the feeding of wire rods that are bonded to each other by scales from the bobbin during heat treatment. It is possible to prevent the wire from being stretched or cut more than necessary.

[Brief explanation of the drawing]

1 to 6 relate to embodiments of the present invention, in which FIG. 1 is an explanatory diagram of the wire drawing process, FIG. 2 1 is an external view of the fryer device, and FIG. Fig. 2 3 is an explanatory diagram of the same operation, Fig. 3 1 is an external view of the device for removing liquid attached to the running wire, Fig. 3 2 is a vertical sectional view of the same, Fig. 4 is an external view of the first water washing device, FIG. 5 is an external view of the second water washing device, FIG. 6 is a front view of a bobbin wound with a wire, and FIG. 7 is an external view of a conventional wire wound into a coil. 1... Bobbin, 2... Wire rod, 3... Flyer device,
DESCRIPTION OF SYMBOLS 11... Rotating member, 15... Peeling roll, 16... Guide member, 30... Wire drawing die, 31... Drawing device.

Claims (1)

[Claims] 1. A wire rod is fully wound around a bobbin made of a heat-resistant material, the bobbin is placed in a heat treatment furnace to anneal the wire rod, and the wire rod is taken out of the furnace and set in a fryer, so that it is fixed on the fixed side. The rotating member of the flyer device is used as the rotating member for the bobbin, and the wire is wound around the guide member and the peeling roll attached to the rotating member and located radially outward of the bobbin. The wire is pulled out from the bobbin by pulling the wire to rotate the rotating member, and forcing a peeling roll to rotate in a direction opposite to the rotating direction of the rotating member, and the wire is pickled, washed, and washed. A wire drawing method characterized by performing a series of wire drawing processes on a continuous line, including lubrication and passing the wire through a wire drawing die.