JPH0656344A - Uptake type wire rod feeder - Google Patents

Abstract

PURPOSE:To improve the extent of operation efficiency in making the continuous delivery of a wire rod achievable by providing two wire rod feed tables mounted with a wire rod bundle each, while installing a wire rod supplying delivery arm free of movements in space between both these wire rod feed tables. CONSTITUTION:Two wire rod feed tables 30 mounted with a wire rod bundle each are set up on the circumference of a circle with a column 35 as the center, and a rear end of the wire rod bundle on one side and a tip end of the wire rod bundle on the other both are held by holders 37a and 37b, joining both these ends together by means of welding. In addition, a delivery arm 32 is shifted up to an upper part of the wire rod feed table 30 on one side, and a wire rod W out of this contact feed table 30 is drawn out to the side of a wire drawer by way of two wire rod pinch rollers 41, 42, an upper guide roller 53, a lower guide roller 54, or the like. In succession, simultaneously with an operation start of this wire drawer, the delivery arm 32 is rocked by a drive motor 60, and when a fact that all the wire rod W is fed out of the one side wire rod bundle is detected by a wire rod detector 95a, a mobile motor 81 is driven, and a supporter 34 is shifted to the side of the other side feed table 30, making it perform the delivery of the wire rod W in succession.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a take-up type wire rod feeding device for feeding a wire rod wound in a coil form from a wire rod feed table to feed it to a wire rod processing machine. The present invention relates to a mechanism capable of supplying a wire rod.

[0002]

2. Description of the Related Art As one of the methods for stably feeding a wire rod to a wire rod processing machine such as a wire drawing machine, there is a take-up type wire rod feeding device.

As shown in FIG. 8, the take-up type wire rod feeding device is rotatably supported on the wire rod feeding device main body 1 and a wire rod feeding base 2 on which a coiled wire bundle Wa is placed, and above the wire rod feeding base 2. The feeding arm 3 and the entanglement detection device 4 for the wire W fed by the feeding arm 3 are provided.

The feeding arm 3 is mounted at right angles to the mounting rod 5 arranged on the center line of the wire rod supply base 2 so as to project longer than the outer diameter of the wire bundle Wa. And the feeding arm 3
A cylindrical through portion 3a for passing the wire W is formed at the tip of the.

A vertical axis 6 having a wire passage hole and rotatably supporting the feeding arm 3 is fixed to the upper portion of the mounting rod 5. The vertical axis 6 is supported by a support body 8 mounted on a column 7 standing upright in the vicinity of the wire rod supply base 2 via a bearing.

A motor 9 for rotationally driving the feeding arm 3 is mounted to forcibly rotate the feeding arm 3. The motor 9 is fixed to the support 8, and the belt 12 is wound around the flange 10 on the vertical axis 6 of the feeding arm 3 and the motor pulley 11.

In the figure, 2a is a wire frame, 13 is a support member for the feeding arm 3, 14 and 15 are guide rollers for guiding the wire W to the wire entanglement detection device 4, and 16, 17 and 18 are the wire W. A guide roller for guiding the wire rod feeding device to the wire drawing machine,
Reference numeral 19 is a switch for detecting the entanglement of the wire W, 20
Is a guide frame.

In the above structure, the wire rod W is drawn by the wire drawing machine and drawn at a constant speed, and the motor 9 is driven in synchronization with the wire rod W, whereby the feeding arm 3 is rotated and the wire rod W is rotated. The wire rod W is supplied from the wire bundle Wa of the supply table 2 while being unwound.

[0009]

However, in the above-mentioned chamfered wire rod supply device, when the wire rod W is completely taken out from the wire rod supply base 2, the guide frame 20 is manually removed to insert a new wire bundle into the wire frame 2a. Must be replaced on the wire feed table 2.

Therefore, the supply of the wire W is temporarily interrupted,
Since it was not possible to continuously supply the wire rod, it was impossible to improve the work efficiency by performing unmanned operation.

In view of the above, it is an object of the present invention to provide a prefabricated wire rod supply device capable of continuously supplying a wire rod.

[0012]

As shown in FIGS. 1 and 2, a means for solving the problems according to the present invention includes a wire rod supply table 30 on which a coiled wire rod W is mounted, and a vertical axis 31 around the wire rod supply table 30. A wire-feeding arm 3 which is rotatably supported in the forward and reverse directions by a wire rod.
2, a drive unit 33 for rotating the feeding arm 32 in forward and reverse directions,
The wire rod supply base 30 includes a support 34 that supports the vertical axis 31, a support 35 that rotatably supports the support 34, and a moving portion 36 that rotates the support 34. A plurality of adjacent wire rods 30 are arranged on the circumference
The front end of one wire W and the rear end of the other wire W, which are placed on each other, are joined to each other, and a pair of gripping bodies 37a and 37b for holding the joined wire W are provided between the wire rods 30. The
Each of the grippers 37a, 37b includes wire rod detectors 95a, 95b for detecting the presence or absence of the wire rod W.
The feeding arm 32 is moved to the adjacent wire rod supply base 30 by the wire rod absence signal from 5b to continuously feed the wire rod W to the wire rod processing machine.

Therefore, the wire rod supply base 30 is provided with a remaining amount detector 96 for detecting the remaining amount of the wire rod W, and the feeding arm 32 is rotated based on the wire rod remaining amount small signal from the remaining amount detector 96. The feeding arm 32 is decelerated and the feeding arm 32 is output by the wire rod absence signal of the wire rod detector 95 on the side of the wire rod supply base 30 that has finished feeding.
The rotation of the wire feeding arm 32 to move the feeding arm 32
The wire feeding arm 32 is rotated by the wire rod absence signal from the wire rod detector 95 on the moved wire rod supply base 30 side.

[0014]

In the above means for solving the problems, the rear end of one of the wire rods 30 on which the wire rods W are mounted is held by the one gripping body 37a. The tip of the other wire W is grasped by the grasping body 37b on the other side, and both ends thereof are joined.

Then, the feeding arm 32 is rotationally driven, and the wire rod W is fed from one of the wire rod feeding bases 30 to the wire rod processing machine.

The wire W is supplied and reduced, and when the remaining amount reaches a predetermined amount, the remaining amount detector 96 detects this and outputs a wire rod remaining amount small signal to the control unit 98.

The control unit 98 reduces the rotation speed of the arm drive motor 60. When all the wire rods W have been supplied from the wire rod supply table 30 on one side, the wire rod W sandwiched between the gripping bodies 37a on one side is pulled and disengaged from the gripping bodies 37a, and the wire rod detector 95a controls the signal indicating that there is no wire rod. Output to the unit 98.

Then, the drive of the drive unit 33 is stopped, and then the moving unit 36 is driven. The support 34 starts to rotate, and the feeding arm 32 rotates toward the other wire rod supply base 30. During this time, since the wire rod processing machine is operating, the wire rod W is continuously supplied, and the wire rod W is disengaged from the gripping body 37b on the other side. The wire rod detector 95b detects this and outputs a signal indicating no wire rod to the control unit 98.

As a result, the drive of the drive unit 33 is started, the feeding arm 32 starts to rotate, and the wire rod supply base 3 on the other side is started.
The wire W is supplied from 0. Thus, when the wire rod W is exhausted, the wire rod W can be smoothly and continuously supplied by moving the feeding arm 32 to the adjacent wire rod supply base 30.

[0020]

EXAMPLE A wire drawing machine as a wire rod processing machine has a wire diameter of 3.5 to 8
1 and 2, a take-up type wire rod feeding device for feeding a wire rod of mm
Like the wire rod supply table 30 on which the coiled wire rod W is placed
And a wire rod feeding arm 32 that is rotatably supported around the vertical axis 31 above the vertical axis 31, a drive unit 33 that rotates the feeding arm 32 forward and backward, and a support body 34 that supports the vertical axis 31. A pillar 35 that rotatably supports the support 34,
And a moving section 36 for rotating the support body 34.

Two wire rods 30 are arranged on the circumference of the column 35 at intervals of 80 degrees.
The front end of one wire W and the rear end of the other wire W placed on the adjacent wire supply bases 30 are joined to each other.
Between the pair of gripping bodies 37 for gripping the joined wire W
a and 37b are provided.

The wire rod supply table 30 has a wire frame 40 in which pipes are combined in a cross shape, and prevents the wire bundle Wa of the coiled feed material from being deformed and the wire rod W from being entangled.

The feeding arm 32 is framed in the shape of a right-angled triangle in a side view, and a pair of wire rod holding rollers 41, 42 are attached to the bottom end of the feeding arm 32 so as to be orthogonal to each other in the axial direction.

A large ring 43, a small ring 44, and a sandwiching roller 45 are attached from the lower side to the upper side on the upper surface of the oblique side.

The upper end of the vertical side is fixed to the guide body 46. The side surface of the guide body 46 on the hypotenuse side is opened, and the wire rod passage hole 47 is formed in the upper portion. A guide roller 48 is attached to the opening rotatably around a shaft 49.

The upper end of the guide member 46 is fixed to the rotary cylinder 50, and the rotary cylinder 50 is rotatably fitted on the vertical axis 31 via a bearing 51.

The vertical axis 31 is formed in a cylindrical shape, and wire rod passage holes 52a and 52b are provided at the upper and lower ends, respectively.

The upper end of the vertical axis 31 is internally fitted and fixed to one end of the support 34, and the other end obliquely below is rotatably fitted to the column 35. And the pillar 3 of the support 34
The horizontal distance from 5 to the vertical axis 31 is the length where the vertical axis 31 is on the center line of the wire rod supply table 30.

Guide rollers 53 and 54 are provided on the upper and middle portions of the support 34, and a pair of left and right guide rollers 55 are provided above the support 35 of the support 34, and the wire rod fed from the wire rod supply table 30 is provided. Guide W to the wire drawing machine.

As shown in FIGS.
4, the arm driving motor 60, and a transmission unit 6 that transmits the driving force from the arm driving motor 60 to the rotary cylinder 50.
It consists of 1.

Arm drive motor 60 directly connected to the speed reducer
A motor pulley 63 having a cam clutch 62 is attached to the output shaft of the.

Inside the case 65, the transmission portion 61 rotates a bevel gear 67 fixed to the horizontal shaft 66, an upper bevel gear 68 and a lower bevel gear 69 meshing with the bevel gear 67, and upper and lower bevel gears 68, 69. A vertical shaft 70 freely fitted,
It has upper and lower clutches 71 and 72 for connecting either one of the upper and lower bevel gears 68 and 69 to the vertical shaft 70.

A first pulley 73 is attached to an end of the horizontal shaft 66 protruding from the side surface of the case 65, and a chain 74 is wound around the motor pulley 63.

The second pulley 75 is attached to the end of the vertical shaft 70 protruding from the upper surface of the case 65, and the rotary cylinder 50
Between the drive pulley 76 fixed to the upper part of the chain 7
7 is wrapped around.

Then, by turning on or off the upper clutch 71 or the lower clutch 72, the rotation direction of the vertical shaft 70 is switched, and the feeding arm 32 can be rotated forward and backward.

In FIG. 3, reference numeral 78 denotes a band brake, which prevents runaway when the feeding arm 32 is overrun by the wire drawn by the wire drawing machine.

As shown in FIGS.
The moving motor with reduction gear 80 attached to the motor and the drive gear 81 attached to the upper part of the motor shaft of the moving motor 80.
A sector gear 82 that is attached to the lower portion of the support 34 and meshes with the drive gear 81; and a stopper 83 that stops and holds the rotation of the support 34 at a predetermined position.

The stopper 83 is engaged with and disengaged from the support body 34 by the vertical movement of the cylinder 84, and the vertical axis 31 is positioned on the center line of the wire rod supply table 30.

As shown in FIG. 6, the grippers 37a and 37b have a fixed piece 91 fixed to the base 90, a movable piece 93 which rotates about an axis 92, and a direction in which the movable piece 93 is brought into contact with the fixed piece 91. And a spring 94 that biases the spring.

The movable piece 93 is formed in an L-shape and is arranged to face the fixed piece 91 so that the wire W can be easily pulled out. Further, by stepping on the horizontal surface 93a of the movable piece 93 with a foot, the wire W can be inserted apart from the fixed piece 91.

Wire rod detectors 95a and 95b are arranged so as to face the horizontal end portion of the movable piece 93. Wire rod detector 95
a and 95b are proximity switches, and when the wire W is not gripped, the horizontal surface of the movable piece 93 is moved upward by the spring 94, so the wire detectors 95a and 95b do not turn on and the wire W Can be detected.

Further, the wire rod supply table 30 is provided with a remaining amount detector 96 for detecting the remaining amount of the placed wire rod W. The remaining amount detector 96 is composed of an optical sensor and is arranged at a predetermined height of the wire rod supply table 30. Then, the presence or absence of the wire W is detected depending on whether or not the wire W blocks light. The remaining amount detector 96 is not limited to the optical sensor, and may be a limit switch arranged at a predetermined height or a device for measuring the length of the wire W supplied.

Then, as shown in FIG. 7, the feeding arm 32 is moved to the adjacent wire rod supply base 30 and extended by the low wire rod signal from the remaining amount detector 96 and the wire rod absence signal from the wire rod detectors 95a and 95b. A control unit 98 for continuously supplying the wire rod W to the wire machine is provided.

The control unit 98 is composed of a microcomputer, controls the arm driving motor 60, the moving motor 80, the cylinder 84 and the wire drawing machine, and based on the wire rod remaining amount signal from the remaining amount detector 96, the feeding arm. The function of decelerating the rotation of 32, the function of decelerating the processing speed of the wire drawing machine at the same time, and the feeding arm 3 by the wire rod absence signal of the wire rod detector 95a on the wire rod feeding base 30 side after the wire rod feeding is completed.
2 has a function of stopping the rotation and moving the feeding arm 32 to a position above the adjacent wire rod supply base 30 and a function of rotating the feeding arm 32 by a wire rod absence signal of the wire rod detector 95b on the moved wire rod supply base 30 side. It is being held.

In the above structure, the two wire rod supply bases 30 on which the wire bundle Wa is placed are arranged on the circumference centered on the column 35 by 80.
The wire bundles Wa are installed at intervals of one degree, and the rear end of the one wire bundle Wa is gripped by the one gripping body 37a. The tip of the other wire bundle Wa is grasped by the grasping body 37b on the other side, and both ends thereof are welded and joined.

Then, the feeding arm 32 is moved to a position above one of the wire rod supply bases 30. The wire rod W passes from the wire rod holding rollers 41 and 42 through the large ring 43, the small ring 44, and the holding roller 45, and is guided by the guide roller 48 to the guide member 46.
It passes through the vertical axis 37 and passes through the upper guide roller 53, the lower guide roller 54 and the guide roller 55 and is pulled to the wire drawing machine.

When the wire drawing machine is started, the arm drive motor 60 is driven. At this time, the rotation of the arm drive motor 60 is adjusted with the ratio setting volume according to the diameter of the wire bundle. Further, the winding direction of the wire bundle Wa is input to set the rotation direction of the feeding arm 32. The arm drive motor 60 is inverter-controlled.

The driving force of the arm drive motor 60 is transmitted by the transmission unit 6.
1 is transmitted to the rotary cylinder 50, and the feeding arm 32 rotates. Then, the supply speed of the wire W is synchronized with the wire processing speed, and the wire W is fed.

Here, even if the coil diameters of the wire bundle Wa are slightly different, if the rotation of the feeding arm 32 is set to be delayed, the action of the cam clutch 62 incorporated in the output shaft of the arm drive motor 60 will be described. As a result, overrun becomes possible, and the phenomenon of narrowing down the supplied wire bundle Wa can be avoided.

Then, the wire W is supplied and reduced, and when the remaining amount reaches a predetermined amount, the remaining amount detector 96 detects this and outputs a wire rod remaining amount small signal to the control unit 98.

In the control unit 98, the rotation speed of the arm drive motor 60 is reduced, the wire drawing machine is also decelerated, and the wire rod processing speed is reduced in accordance with the wire rod supply speed.

When all the wire rods W have been supplied from the wire rod supply table 30 on one side, the wire rod W sandwiched between the gripping bodies 37a on the one side.
Is pulled, and is separated from the grip body 37a and supplied.

At this time, the movable piece 93 is pushed by the spring 94 and separated from the wire rod detector 95a, and the wire rod detector 95a is turned off. This is input to the control unit 98 as a wire rod absence signal.

Then, the drive of the arm drive motor 60 is stopped. Subsequently, the movement motor 80 is driven, and the cylinder 84 is shortened to release the engagement between the stopper 83 and the support body 34.

The support 34 starts to rotate and the feeding arm 32
Rotates in the direction of the other wire rod supply base 30. When the vertical axis 31 reaches the center line of the wire rod supply table 30 by rotating a certain amount, the moving motor 80 is stopped and the cylinder 84
Grows. Then, the stopper 83 and the support 34 are engaged, and the support 34 is fixed.

During this time, since the wire drawing machine is operating at a low speed, the wire W is continuously supplied. In addition, the feeding arm 3
Although the driving of No. 2 is stopped, the feeding arm 32 can be overrun even if the wire rod W is pulled by the cam clutch.

Subsequently, the joint portion of the wire W is drawn into the feeding arm 32, and the wire W is disengaged from the grip body 37b on the other side. The wire rod detector 95b detects this, and the controller 98
Outputs a wire-less signal to.

As a result, the driving of the arm driving motor 60 is started, and the feeding arm 32 starts rotating. At this time, the wire drawing machine returns to the normal operation speed, and the arm drive motor 60 is driven at the set rotation speed.

Then, the wire rod W is fed from the wire rod supply table 30 on the other side.
While supplying the wire rod, the wire rod supply table 30 on one side is replaced with the wire rod supply table 30 on which a new wire bundle Wa is placed.
And the rear end of the wire W on the other side are welded and sandwiched between the grippers 37a and 37b.

When the wire W is removed from the wire supply base 30 on the other side, the feeding arm 32 is similarly rotated in the opposite direction,
Continue to supply the wire rod W.

As described above, while the feeding arm 32 is rotationally driven, when the wire W runs out, the wire W is moved to the adjacent wire supply base 30 so that the wire W can be smoothly and continuously supplied.

Therefore, it is not necessary to stop the wire drawing machine every time the wire material W is replenished, and it is not necessary to always have a person, so that the working efficiency can be improved.

The present invention is not limited to the above embodiment, and it goes without saying that many modifications and changes can be made to the above embodiment within the scope of the present invention.

For example, even if the winding directions of the wire bundles are different, the feeding arm 32 can be rotated in the forward and reverse directions.
This can be handled by setting the rotation direction in advance. Even if the diameter of the wire bundle is different, the arm drive motor 60
Adjust it with the setting volume of.

In the present embodiment, only two wire rod supply bases 30 are arranged side by side, but they may be arranged in a line on the circumference of the support column 35 as the center. This enables continuous unmanned operation for a longer time. At this time, it is necessary to provide a mechanism for guiding the wire W from the center of the column 35 toward the wire drawing machine.

Instead of rotating the support body 34 of the feeding arm 32 around the support column 35, the support body 34 may be movable in the lateral direction so that the wire rods 30 are arranged in a line.

The arm drive motor 60 is controlled by detecting the supply speed of the wire rod.
Drive control. That is, since the wire bundle Wa is not wound with a constant diameter and there is a gap between the wire bundle Wa and the wire rod supply base 30, the wire bundle diameter varies depending on the feeding tension. When the wire W is wound around the wire supply base 30, the supply speed becomes slower than the wire processing speed.

At this time, the feeding arm 32 is controlled by controlling the rotation speed of the arm driving motor 60 to be high.
The rotational speed of is increased to loosen the wire bundle Wa.

On the contrary, even when the feeding speed of the wire W becomes faster than the wire-working speed and the wire W swells, the arm drive motor 60 is controlled to slow down the rotation speed of the feeding arm 32, and Eliminate the bulge of W.

[0070]

As is apparent from the above description, according to the present invention, since the wire rod feeding arm is movable between the wire rod supply bases, it moves to the adjacent wire rod supply base when the supply of the wire rod is completed. Then, the wire rod can be continuously supplied, it is not necessary to stop the wire drawing machine every time the wire rod is replenished, and the wire rod can be continuously supplied. Moreover, the work efficiency can be improved because it is not necessary to always have a person to replenish the wire.

When the remaining amount of the wire rod becomes small, the rotation of the feeding arm is decelerated. When the feeding of the wire rod is completed, the rotation of the feeding arm is stopped and the feeding arm is moved to a position above the adjacent wire rod feeding table, and the feeding arm is rotated again. Therefore, the wire rod can be smoothly and continuously supplied even while the feeding arm is moving.

[Brief description of drawings]

FIG. 1 is a plan view of a take-up type wire rod feeding device.

FIG. 2 is a front view of the take-up wire feeding device.

FIG. 3 is a sectional view of a feeding arm.

FIG. 4 is a partially cutaway side view of the feeding arm.

FIG. 5 is a configuration diagram of a feeding arm driving unit.

FIG. 6 is a front view of a grip body.

FIG. 7 is a block diagram of a control unit.

FIG. 8 is a configuration diagram of a conventional chamfered wire feeding device.

[Explanation of symbols]

 30 wire rod supply table 31 vertical axis 32 feeding arm 33 drive unit 34 support member 35 support rod 36 moving unit 37a, 37b gripping member 95a, 95b wire rod detector 96 residual amount detector 98 control unit

Claims (2)

[Claims] 1. A wire rod supply table on which a coil-shaped wire rod is placed, a wire rod feed-out arm rotatably supported around the vertical axis above the wire rod feed table, and a wire feed rod is rotated forward and backward. The wire rod supply table includes a drive unit, a support body that supports the vertical axis, a support that rotatably supports the support body, and a moving unit that rotates the support body. A pair of gripping bodies that are arranged individually and that join the leading ends of one wire rod and the rear ends of the other wire rods that are placed on the adjacent wire rod supply bases and that hold the joined wire rods between the wire rod supply bases. Each gripping body is equipped with a wire rod detector that detects the presence / absence of a wire rod, and the feeding arm is moved to the adjacent wire rod supply table by the wire rod absence signal from the wire rod detector to continuously feed the wire rod to the wire rod processing machine. A control unit for supplying the wire to the wire Place 2. The wire rod supply base is provided with a remaining amount detector for detecting the remaining amount of the wire rod, and the control unit according to claim 1 is based on a low wire rod amount signal from the remaining amount detector. Means for decelerating the rotation of the wire rod, and means for stopping the rotation of the feeding arm by the wire rod absence signal of the wire rod detector on the side of the wire rod feeding table that has finished feeding the wire rod and moving the feeding arm to the position above the adjacent wire rod feeding table. And a means for rotating the feeding arm in response to a wire rod absence signal from the wire rod detector on the wire rod supply base side.