JPS6096154A - Coil winding device - Google Patents

Abstract

PURPOSE:To enable to continuously wind a coil by a mold by bending a wire by a bending roller on the basis of the detected value of a curvature detector. CONSTITUTION:A coil winding device has a linear profiling roll 40, a stationary profiling roll 54, a stationary bending roll 56 and a movable bending roll 58. A curvature detector 60 detects the curvature of the outer periphery of a coil 3A from the relative positions of the rollers. The roller 58 is controlled on the basis of the detected value of the detector 60 to bend a wire material 3. The roller 58 is disposed near the winding position of the material 3.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a wire winding device, and particularly to a coil winding device suitable for winding a non-circular coil using a superconducting material as a wire.

[Background of the invention]

Figures 1 to (1) 1 show a conventional winding method in which a superconducting conductor, which is a wire rod, is rolled up into a pancake shape around an elliptical winding core to form a coil. First, as shown in FIG. 1 (4), a crescent-shaped mold 4 is placed on the outer periphery of the coil 3A wound around the winding core 2, and the winding core 2 is The wire rod 3 is rotated and bent, and then the first wire rod 3 is bent.
As shown in FIG.
The wire rod 3 is wound up by rotating the wire rod 3, and a coil is formed by repeating this series of operations.

Further, a fixing metal fitting 6 with a tightening bolt 5 extended by i+ttf was attached to the side plate 7, and by tightening the tightening bolt 5, the outer periphery of the coil was pressed to prevent the coil 3A wound around the winding core 2 from unwinding.

Therefore, the fixing fitting 6A is provided near the winding position of the wire rod 3 so as not to interfere with the winding of the wire rod 3.

Remove 6B and add a new fixing bracket 6C to tighten the outer circumference of the newly wound coil.

I had to install a 6D.

Note that reference numeral 8 is a butt provided at the tip of the bolt 5 in order to increase the frictional force and prevent damage to the outer surface of the coil 3A.

However, this conventional winding method requires a large number of molds 4 corresponding to the required curvature, and a large number of man-hours are required to replace these molds 4 and to attach and remove the fixing fittings 6. There was a problem with poor work efficiency. Furthermore, with this conventional method, gaps often occur between the coil layers at discontinuities in the radius of curvature, but in order to correct these gaps, manual work such as hammering is required based on the highly skilled workers and their long years of intuition. There is also the problem that it is impossible to eliminate the effects of work errors and impacts caused by hammering on the superconducting conductor.

[Purpose of the invention]

An object of the present invention is to provide a coil winding device that can continuously wind wires without using a mold.

[Summary of the invention]

A first aspect of the present invention provides at least three rows 2 that contact the outer periphery of a pre-stage coil wound around a winding core and perform a tracing operation.
A bending process comprising: a curvature detection section that detects the outer circumferential curvature of the coil from the relative positions of the three rollers; and a bending roller that bends the wire based on the detected value of the curvature detection section. The device is characterized in that the device is placed near the position where the wire is wound by the winding core of the winding drum that winds the wire fed from the feeding drum, and with this configuration, the shape of the wire automatically matches the outer circumferential shape of the coil. The above object is achieved by bending and rolling it up.

On the other hand, the second invention has at least three rollers that come into contact with the outer periphery of the pre-stage coil wound on the winding core and perform a tracing operation, and the outer periphery curvature of the coil can be determined from the relative positions of these three rollers. A bending device equipped with a curvature detector and a bending roller that breaks the bending process on the wire based on the detection value of the curvature detector is connected to a winding drum that winds the wire unwound from the drum. The coil is placed near the position where the wire is wound by the winding core, and the outer periphery of the winding core protrudes from the side of the winding drum. A clamping device consisting of a number of clamp machines that can release the clamp and retract into the winding drum is installed in the winding drum, and with this configuration, the wire automatically changes to the shape of the outer periphery of the coil. Since the coil is bent into a matching shape and wound up, and furthermore, the coil wound around the core is clamped by a clamping machine, the winding of the coil is reliably prevented, thereby achieving the above object.

[Embodiments of the invention]

Preferred embodiments of the coil winding device according to the present invention will be described below with reference to the drawings.

FIG. 2 is a plan view of an embodiment of the coil winding device according to the present invention, in which the coil winding device i10 is arranged with its axis of rotation perpendicular, and is used to feed out the wire 3 while applying a constant tension to the wire 3. A take-up drum (not shown), a take-up drum 12 which is arranged with its rotating shaft vertically like the take-up drum and winds the wire 3 unwound from the take-up drum, and a wire rod of the take-up drum 12. A bending device 20 that is provided near the winding position and bends the wire 3 before the wire 3 is wound onto the winding drum 12; and a coil clamp device that presses the coil 3A wound onto the winding drum 12. 100
It is composed of and.

An elliptical winding core 16 is protruded from the center of the winding drum 12 through a side plate 14 that functions as a coil winding guide, and the winding drum 12 and winding core 16 rotate together. The wire 3 is wound around the winding core 16 as a coil 3A.

The bending device 20 is arranged on a base 22 formed near a position where the wire rod 30 is wound around the winding core 16 .

On the base 22, there is a 2.
A book rail 24 is extended, and a table 26 is placed on this rail 24, and this table 26 is movable on the rail 24 in the direction of the arrow by a drive motor 28 and a ball screw 30 installed on the pace 22. This makes it easy to remove the coil 3A and drum 12.

On the other hand, two rails 3 ir extending perpendicularly to the rail 24 are provided on the table 26 .
A U-shaped outer peripheral frame 32 that opens toward the wire winding position is mounted on the rail 31, and the outer peripheral frame 32 is movable on the rail 31.

A rail 34 is provided on the opposing inner side of the outer peripheral frame 32, and the moving frame 3G is attached to the rail 34.
The movable frame 36 is assembled so as to be movable along the outer peripheral frame 36, and is biased with a predetermined pressure in the wire winding direction (direction of arrow B) by a linear cylinder 38 installed between the movable frame 36 and the outer peripheral frame 36.

As shown in FIG. 3, the movable frame 36 is also formed in a U-shape like the outer peripheral frame 32, and the distal end of one arm 36A of the two arms extending toward the wire winding part. A linear copying roll 40 that contacts the outer peripheral surface of the coil is pivotally mounted. Further, a pivot arm 44 is provided on the pivot shaft 42 of the linear copying roll 40, and can swing around the pivot shaft 42 in the direction of arrow C by a pivot cylinder 46 installed between it and the moving frame 36. .

Rails 48° and 50 are provided on both front and rear sides of the swing arm 44, and the rail 4 is provided at the tip of the swing arm 44
A rotating copying roll 54 and a stationary bending roll 56 are each pivotally connected via a bracket 52 movable along 8. The rotating arm 44 is urged outward by the rotating cylinder 46, and the rotating copying roll 54 contacts the outer surface of the coil with a predetermined pressing force and moves to follow the outer surface of the coil. In addition, fixed bending row/l1
56 presses the outer surface of the wire rod wound up by the winding core 16, and works together with a moving bending roll described later to apply a bending moment to the wire rod 3 to bend it.

Further, a curvature detection section 60, which will be described later, is attached to approximately the center of the swing arm 44, and a frame 57 is attached to the side surface of the arm 44 opposite to the side surface on which the curvature detection section 600 is attached. The frame 57 is provided with a movable bending roll 58 that comes into contact with the inner peripheral surface of the wire 3 and presses the wire 3 outward. This movable bending roll 58 is driven by a drive motor 5
The rail 59 is driven by a ball screw 59 driven by 8A.
It is movable along A in the direction of the arrow.

FIG. 4 shows a curvature detection section 6 installed on the swing arm 44.
FIG.

At the tip of the 1°-fluro 4, the central part of a rotating arm 70 is provided with a copying roll 68 via a shaft 66 at both ends.
1, and this swing arm 70 can swing in the direction of arrow F.

An arm 72 is attached to the rotating arm 70 so as to be movable in a direction perpendicular to both copying rolls 68.
A detection roll 76 is provided at the tip of the shaft 74 via a shaft 74 . The detection port and the luer 6 are located on a straight line connecting both copying rolls 68, and the arm 72 is urged by a spring member 78 in the direction of the three coils. Swivel arm 70
A linear sensor 79 is installed on the lower surface, and the relative position between the arm 72 and the linear sensor 79 is initially determined by the spring member 7.
The detection roll 76 is held in a fixed position by the detection roll 76.
is pushed by the outer peripheral surface of the coil and moves in the direction of arrow G, and the amount of this movement can be detected by the linear sensor 7cl.

The frame 62 is connected to the rail 4 provided on the swing arm 44.
A column 80 is attached to the moving table 64 so as to be movable in the longitudinal direction of the rail.
The wires 82A, 8211° 82C are installed in the column 80, and the wires 84 are connected to the pulleys 82A, 82B, 82C.
It is connected to the balance weight 86 via. Therefore, the moving arm pull 64 is always urged in the direction of the arrow E, and the two copying rolls 68 and the extraction rolls 7
6 is in contact with the outer periphery of the coil, and the relative displacement of the detection roll 76 with respect to the copying roll 68 is detected by a linear sensor 7tI and input to a bending roll position control device 90, which will be described later.

FIG. 5 shows a block diagram of the bending roll position control device 90.

In FIG. 5, the bending roll position control device 90 is
A mini-computer 92 to which position data of the movable bending roll 58 for various curvature values is input in advance, and bending roll position data corresponding to the detected value by the linear sensor 79 are selected from among the data input to the mini-computer 92. A microcomputer 94 and a drive motor 58A are driven by signals from the microcomputer 94.
and a drive control section 96 that drives the movable bending roll 58 to a predetermined position.

The curvature of the coil surface changes moment by moment as the winding of the wire 3 progresses, but the position of the movable bending roll 58 is also changed by the bending roll control device 90, and the wire 3 is bent so as to always match the outer circumferential curvature of the preceding coil. It is now possible to apply.

Note that reference numeral 98 is an operation panel that controls driving and stopping of the bending roll position control device 90.

2 and 6 are diagrams showing the coil clamp device 100. FIG.

In these figures, the clamp cylinders 102 (102A, 102B) are placed at eight equal positions on the outer circumference of the core /6.

1020, . . . 102H) are arranged to protrude upward from an opening 103 formed in the winding drum 12, and a cylinder rond 106 having a pad 104 at the tip presses the outer surface of the coil. ing.

The frame 107 that fixes the clamp cylinder 102 is
A link 11 is attached to a base 108 fixed to the bottom plate of the winding drum.
An elevating cylinder 115 (115A, 115B, 11
5C, . . . 115H), the clamp cylinder 102 can be moved up and down.

FIG. 7 shows a clamp cylinder operation control mechanism 100A of the coil clamp device 100.

This control mechanism 100N includes a dock 118 pivoted on a winding shaft 116 extending downward from the winding core 16, and a tonk 1
18 8 limit switches 120 arranged around the outside
(120A, 120B, 120C,...12
0H) and a limit switch 120.
A is the clamp cylinder 102A and the lifting cylinder 11
5 people, limit switch 120B, clamp cylinder 102B and lifting cylinder 115B, old...
・Limit switch 120H is clamp cylinder 102
H and the lifting cylinder 115H are connected via a slip ring 122 so as to operate them respectively.

The limit switch 120 has a slider 124 on the dock side.
protrudes, and a row 2126 is pivotally attached to the tip of the slider 124, and this roller 126 is in contact with the outer peripheral surface of the tongue 118. The tonk 118 is formed with a convex portion 118A and a concave portion 118B, the dock 118 rotates integrally with the winding drum 12, and the roller 126 is connected to the tonk 11.
8, and the limit switch 120 is turned on and off by sliding of the slider 124.

If the winding drum 12 changes from the state shown in FIG.
When the dock 118 is rotated by 45 degrees (at this time, the dock 118 is also rotated by 45 degrees)
, the limit switch 12oH is turned on and the elevating cylinder 115H and the clamp cylinder 1021 ('e are activated, causing the clamp cylinder 102H to project upward from the side of the winding drum 12 and clamping the outer periphery of the three coils. At the same time, the limit switch 120D is turned off and the lifting cylinder 114D and clamp cylinder 102
D is reversely operated to retract the cylinder rond of the clamp cylinder 1021), and the clamp cylinder 102
D is lowered into the winding drum 12.

In this way, as the dock 118 rotates, the slider 124 of the limit switch 120 moves in accordance with the outer peripheral shape of the tonk 118, and as a result, the clamp cylinder 102 is moved around the winding part of the wire 3 (in other words, the bending device 2o When the coil reaches a position near the t (fla position), the clamps on the outer periphery of the three coils are released and the coil descends into the winding drum 12. Therefore, the clamping device 10
0 does not get in the way of winding the wire.

Next, the operation of this embodiment will be explained.

First, the entire tip of the wire 3 is fixed to the core 16.

Next, the bending device 2° is placed in a predetermined position according to the size of the coil. That is, the drive motor 28 positions the table 26, then the outer frame 32 is fixed at a predetermined position on the rail 31, and the positions of the linear copying roll 40, bracket 52, curvature detection unit 60, and movable bending roll 58 are adjusted. Determine the position.

Then, the winding drum 12 is driven to start winding the wire rod 3.

Then, the wire 3 is bent by being given a bending moment between the fixed bending roll 56 and the movable bending roll 58. Then, the wire 3 is bent back within the allowable spring bank range between the movable bending roll 58 and the copying roll 40, and then wound onto the winding core 16.

At this time, the position 1fflJall of the movable bending roll 58 is set as follows.

That is, first, the linear sensor 79 of the curvature detection section 60 detects the amount of movement of the detection roll 76, and this detected value is used by the bending roll position control device 901M to move the optimum mover 58 to the optimum position.

The moving frame 36 of this bending device 20 is a cylinder 3
8, the rotating arm 44 is always biased by a cylinder 46 in the direction of the three coils with a constant biasing force, and the rotation of the winding core 16 causes the linear copying roll 401 to rotate. The tracing roll 54 and the 971 coil 68 of the curvature detection section 60 move to follow the outer circumference of the coil, and the curvature detection section 60 detects the outer periphery curvature of the coil, which changes every moment as the wire winding progresses. The position of the movable bending roll 38 is controlled by the roll position control device 90, so that the single grain material 3 is always bent to a curvature that matches the outer circumferential curvature of the coil immediately before being wound onto the winding core 16.

The coil 3A wound around the winding core 16 is automatically and sequentially clamped in the radial direction by the clamp cylinder 1o2 of the coil clamp device 100.

Therefore, there is no generation of gigang between the layers of the coil 3A wound around the winding core 16, and unwinding of the coil 3A is reliably prevented.

As described above, according to this embodiment, non-circular coils having various curvatures can be formed in a short period of time without producing gigang between coil layers.

Further, since no gigang is generated between the coil layers, hammering is not necessary and there is no possibility of any negative impact on the performance of the coil.

〔Effect of the invention〕

As is clear from the above description, according to the present invention of GL, wire-wound coils having various curvatures, whether circular or non-circular, can be formed in a short time.

Further, according to the second invention, regardless of whether it is circular or non-circular,
Wire-wound coils having various curvatures can be formed in a short period of time without producing any gigang between coil layers.

[Brief explanation of drawings]

1(a) to 1(c) are state diagrams of coil winding by a conventional coil winding device, FIG. 2 is a plan view of essential parts of an embodiment of the coil winding device according to the present invention, and FIG. The figure is an enlarged plan view of the bending device, FIG. 4 is a perspective view of the curvature detection section, FIG. 5 is a block diagram showing the control system of the bending roll position control device in the bending device, and FIG. FIG. 7, a side view of the coil clamp device, is a schematic diagram showing the operating system of the coil clamp device. 3... Wire rod, 3A... Coil, 12... Winding drum, 16... Winding core, 20... Bending device, 22...
... Pace, 32... Peripheral frame, 36... Moving frame, 40... Linear copying roll, 44... Swivel arm, 54... Fixed copying roll, 56... Fixed bending roll, 58 ...Moving bending roll, 60...Curvature detection unit, 62...Frame, 64...Moving table, 68...Copying roll, 70...Swivel arm, 76
...Detection roll, 79...Linear sensor, 90...
- Bending roll position control device, 92... Beni computer, 94... Microcomputer, 96... Drive control unit, 100... Coil clamp device, 102...
Clamp cylinder, 107... Cylinder Rondo, 11
5... Lifting cylinder, 116... Winding shaft, 118...
・・Dock, 120・・Limit switch, 122・
...Sling ring. Agent Patent Attorney Tatsunohata Unuma (1 (O) Figure 2 Jamu [Continued from page 1 of 7th Ward

Claims (1)

[Claims] 1. In a coil winding device equipped with a feeding drum that feeds out a wire material and a winding drum that winds the wire material unwound from the feeding drum around a winding core as a coil, a curvature detection section that detects the curvature of the outer circumference of the coil from the relative positions of the three rollers; 1. A coil winding device, comprising: a bending roller that bends a wire based on the bending process, and a bending device disposed near a position where the wire is wound around a winding core. 2. In a coil winding device equipped with a feeding drum that feeds out a wire rod and a winding drum that winds the wire unwound from the feeding drum as a coil around a winding core, the wire rod is wound around the winding core. a curvature detection unit that detects the outer periphery curvature of the coil from the relative positions of the three rollers; A bending device equipped with a bending roller that bends the wire rod based on the winding core is arranged near the position where the wire rod is wound around the winding core, and protrudes from the side surface of the winding drum around the outer periphery of the winding core. A clamping device consisting of a plurality of clamping machines that clamps the outer circumference of the coil, unclamps the coil when it is near the wire winding position, and can be retracted into the winding drum is installed inside the winding drum. A coil winding device characterized by: