JPH04142718A - Toroidal winding method - Google Patents

Abstract

PURPOSE:To contrive both reduction is winding period and improvement in working efficiency by a method wherein a work is rollingly moved in toroidal direction, and a wire material is passed through the aperture of the work for every rolling movement at an angle of 180 deg.. CONSTITUTION:A work 1 is provided in such a manner that a pair of tension rollers 2a and 2b, which are ring-shaped and consist of core materials detachably set on the center position O of the device, are arranged on the left and right sides symmetrically with respect to the work 1 and separatably from the horizontal center axis of the work. The tip of a wire material is clamped or unclamped by main clamping tools 3a and 3b, and the wire material 4 is rotated by the above-mentioned tension roller. Auxiliary clamping tools 5a and 5b temporarily support the tip part of the wire material 4 inserted into the aperture part of the work at the uprightly erected position on the lower side and the upper side of the work. The work 1 is rollingly moved toward toroidal direction from the lower side uprightly erecting position to counterclockwise direction, in synchronization with the rotation of the wire material, and it temporarily stops every 180 deg. rotation. The tip of the wire material passes through the aperture of the work every rotation of 180 deg.. Accordingly, the tip of the wire material can be inserted into the work twice for every rotation, and the wire material can be toroidally wound twice against the work.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) This invention relates to an improvement in a toroidal winding method.

(Prior art) The toroidal winding method has conventionally been performed with a ring-shaped workpiece constituting the core material fixed. After the winding start end of the wire is fixed to the workpiece, the tip of the wire is inserted into an opening in the workpiece. The winding operation was repeated in a toroidal direction by pulling the wire and making the wire go around.

In other words, each time the tip of the wire is inserted into the work, the winding operation is repeated to complete the winding.

(Problem to be Solved by the Invention) However, in this winding method, the wire is wound while being passed through a closed space, and each time the wire is wound, a certain tension is applied to the wire to align it. Because the wire must be wound around the wire, the greater the number of turns, the longer the wire has to go around the wire, which results in longer winding time and significantly lower work efficiency than with other general winding methods. .

This invention solves the above problems by rolling the workpiece in a toroidal direction and passing the wire through the opening of the workpiece every 180° rolling, thereby shortening the winding time and improving work efficiency. It is an object of the present invention to provide a toroidal winding method that can be improved.

(Means for Solving the Problem) In order to achieve the above object, the present invention rolls a ring-shaped work constituting the core material in a toroidal winding direction,
A rolling mechanism that temporarily stops at an 80° rolling position, a pair of tension rollers that are arranged so as to be able to come and go alternately at symmetrical positions that sandwich the work and guide the wire around, and a clamp for the tip of the wire. and a pair of left and right clamping tools that alternately lead the wire to the opening of the workpiece at the stop position, and a hooking and unhooking mechanism that separates the wire from each roller before the work of inserting the wire into the workpiece is completed, a step of positioning the opening of the workpiece to face the tip of the wire rod by rolling the workpiece 180° in an initial state in which the workpiece is rotated by a tension roller and the negative tension roller is located at the furthest position; , at the stop position of the workpiece, bringing the one tension roller close to the workpiece and inserting the tip of the wire rod into the opening of the workpiece; A step of clamping with a clamping tool and unclamping the one side clamping tool, passing the wire around the other side tension roller, holding the tip of the wire with the other clamping tool, and clamping the other side of the workpiece. a step of passing the wire rod through the workpiece by moving the one tension roller close to the workpiece and separating the other tension roller from the workpiece; By repeating the steps of unhooking the wire rod and winding the wire rod around the workpiece alternately on the left and right sides every 180'' of rolling of the workpiece, the wire rod is toroidally maintained at a predetermined tension over the entire circumference of the workpiece. It is characterized by being wound in a shape.

(Function) According to the above wire winding method, the workpiece rolls in a toroidal direction in synchronization with the circumferential movement of the wire rod, and the tip of the wire rod passes through the opening of the workpiece every 180'' of rolling.Therefore, Each time the wire goes around, the tip can be inserted into the workpiece twice, and the workpiece rolls each time it is inserted, resulting in two toroidal windings around the workpiece.

(Example) Hereinafter, an example of the present invention will be described in detail using the drawings.

FIG. 1 shows the basic configuration of a winding device in which the method of the present invention is implemented.

In the figure, 1 is a ring-shaped workpiece made of a core material that is removably set at the center position O of the winding device; 2a;
2b is a pair of tension rollers that are arranged symmetrically on the left and right sides of the workpiece 1 and move toward and away from the horizontal center axis of the workpiece 1; 3a and 3b clamp and unclamp the tip of the wire rod 4; At the same time, the main clamping tools 5a and 5b that rotate the wire rod 4 around each tension roller 2a and 2b clamp the tip end of the wire rod 4 inserted into the opening thereof at the lower and upper upright positions of the workpiece. This is an auxiliary clamp tool that temporarily holds the tip of the wire rod 4.

The work 1 is rotated by a rolling mechanism (not shown).
Towards the toroidal direction, from the lower upright position, it sequentially draws the rolling locus shown in the figure, rolling counterclockwise every 180 degrees, and repeats the operation of temporarily stopping at the lower and upper upright positions.

Incidentally, the tension rollers 2g and 2b are provided with an unlatching mechanism (not shown) for detaching the wire rod 4 in a state where it is closest to the workpiece 1.

Further, the moving distance of the tension rollers 2a and 2b is a distance corresponding to the winding length of the wire rod 2 wound around the corresponding workpiece 1, and moreover, the moving distance should be reduced by the length reduction of the wire rod due to winding. The travel distance is set.

The rolling motion of the work 1 and the tension roller 2
a, separation movement of 2b, each clamping tool 33° 3b, 5a,
The clamping and unclamping movements of 5b, and the unclamping movements by the unclamping mechanism are performed in a fixed order mechanically or electrically synchronized, and by regularly repeating these series of movements, the wire rod is attached to the workpiece 1. 4 is toroidally wound.

FIG. 2 shows the sequence of the winding method using the above device.

First, in (a), the workpiece 1 is set in an upright position on the lower side of the rolling device, the winding start end of the wire rod 4 is fixed inside the workpiece 1, and the tip of the wire rod 4 is clamped to one of the main clamp tools 3a. , rotated by one tension roller 2a,
After that, the tension roller 2a is moved to the farthest distance.

Note that the holding position of this main clamp tool 2a is
This is the position where the tip faces the opening of the work 1 when the top of the work 1 is located in the upright position.

Further, the holding position of the other side main clamp tool 2a is set at a position where the lower part of the workpiece 1 is upright and the tip of the wire rod 4 faces the opening of the workpiece 1.

After the above settings are completed, the winding operation is automatically performed.

First, as shown in (b) to (d), when the apparatus is started from the set state, the workpiece 1 rolls 180 degrees counterclockwise and stops at the upper upright position.

In (b), the workpiece 1 is in a horizontal position,
Corresponds to the center position 0 of the device.

In (c), it is in a slightly over-patterned state from the upper upright position, and when it returns from this state to the upright position shown in (d), the part of the wire 4 that touches the edge of the workpiece 1 is shaped by this over-pattern. .

Further, in (d), when the tension roller 2a is brought slightly closer to the work 1 while the work 1 is stopped, the tip of the wire 4 passes through the inside of the opening of the work 1 and protrudes to the opposite side.

In this state, the protruding tip of the wire 4 is held by the auxiliary clamp tool 5b on the opposite side.

Then, as shown in (e), the one main clamping tool 3a performs an unclamping operation, the other main clamping tool 3b clamps the tip of the wire 4, and the auxiliary clamping tool 5a unclamps the wire 4. The handing operation is completed when the item is transferred to the other side.

In this state, as shown in (f), the tension roller 2b on the other side is closest to the side of the workpiece 1, and after moving the main clamp tool 5b and causing the tension roller 2b to rotate, the main clamp tool 5b is fixed at this position.

Next, when the tension roller 2b separates from the workpiece 1, the one tension roller 2a approaches the workpiece,
The wire 4 passes through the work 1 with a constant tension due to the relative movement between the two that sandwich the work 1.

With the one tension roller 2a closest to the workpiece 1 as shown in (g), the wire rod is hooked and unhooked by the hooking and unhooking device, and the tension roller 2b is further moved to the farthest position. As shown in (h), the wire rod 4 is wound around the vertically and laterally symmetrical positions in (a).

Therefore, from this state, as shown in (i) to (k), the workpiece further rolls 180° counterclockwise, and as a result of overturning and returning to the upright position, the wire 4 is now in the lower upright position. The workpiece 1 passes through, and the auxiliary clamping tool 5a performs the clamping operation and the other main clamping tool 3
Unclamping in b, and as shown in (1) and (m), the wire rod 4 is again clamped by one main clamp tool 3a and rotated around the tension roller 2a, and then,
As shown in (n) and (o), tension rollers 2a and 2
The relative movement of b and the tension roller 2b side are carried out, and two winding operations are completed by one rotation of the wire 4, and the state returns to the state of (a).

Therefore, after this, the operations (b) to (0) above are repeated for the number of windings required, and the toroidal winding work is completed.

Although the explanation has been omitted, it is of course possible to perform aligned winding by adding a mechanism that rotationally displaces the workpiece 1 by a pitch in the circumferential direction for each winding operation.

(Effects of the Invention) As explained above with reference to the embodiments, in the toroidal winding method according to the present invention, the workpiece rolls in the toroidal direction in synchronization with the circumferential movement of the wire rod, and every 1806 rolling movements of the wire rod. The tip passes through the opening in the workpiece. Therefore, each time the wire goes around the wire, the tip is inserted into the workpiece twice, and the workpiece rolls each time it is inserted, resulting in two toroidal windings on the workpiece. Line work efficiency can be greatly improved.

[Brief explanation of drawings]

Fig. 1 is a principle explanatory diagram showing the basic configuration of a winding device that implements the method of the present invention, and Figs. 2 (a) to (0) are process explanatory diagrams showing the winding order using the same winding device. . 1... Ring-shaped workpieces 2a, 2b... Tension rollers 3a, 3b... Main clamp tool 4... Wire rods 5a, 5b... Auxiliary clamp tool

Claims (1)

[Claims] (1) A rolling mechanism that rolls the ring-shaped work that constitutes the core material in a toroidal winding direction and temporarily stops at a 180° rolling position, and a rolling mechanism that is arranged so that it can alternately approach and separate at symmetrical positions sandwiching the work. a pair of tension rollers that circumferentially guide the wire; a pair of left and right clamping tools that clamp the tip of the wire and alternately guide it to the opening of the workpiece at a stop position; and a hooking/unhooking mechanism for detaching the wire from each of the rollers.
In an initial state in which the wire rod is wound around one tension roller and the one tension roller is located at the farthest position, the workpiece is rolled 180 degrees to open the opening of the workpiece at the tip of the wire rod. Step of placing the wire rod in opposing positions: At the stop position of the workpiece, the one tension roller approaches the workpiece, and the tip of the wire rod is inserted into the opening of the workpiece: The tip of the wire rod protrudes toward the other side of the workpiece. Clamping by the other side clamping tool and unclamping the one side clamping tool: The wire rod is passed around the other side tension roller, the tip of the wire rod is held by the other clamping tool, and the workpiece is clamped by the other side clamping tool. A step of passing the wire rod through the workpiece by placing the wire rod near the other surface and moving the one tension roller closer to the workpiece side while separating the other tension roller: The step of hooking and unhooking the wire rod from the tension roller and winding the wire rod around the workpiece: By repeating the above steps alternately on the left and right every 180° rotation of the workpiece, the wire rod is wrapped around the entire circumference of the workpiece. A toroidal winding method characterized by winding in a toroidal shape at a predetermined tension.