JPS59150616A - Wire coil producing system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus and method for automatically forming wire coils from wire segments sent from a wire processing system, and for sorting and discharging the completed coils. .

In the field of coil manufacturing, there are various wire coil winding systems that are concerned with automating steps in the coil winding process or on tools to increase production. One common approach is to use dual spool heads or multiple spool heads that are mounted on a rotating turret and index and feed to various positions for wire loading, winding operations, coil discharge, etc. One example is to use a mandrel head.

Generally speaking, these systems are used to coordinate various station functions such that wire loading into one mandrel is at its winding position before the next coil winding operation in sequence begins. It is now completed with . The system is often fed with one continuous wire, and by cutting that wire from a fully wire-fed mandrel, the cut feed wire end is transferred to the next mandrel to be wire-fed. Or engage the spool.

Although average automation is achieved by the device, its construction and mode of operation are such that it continuously coils pre-cut wires of various lengths at a throughput commensurate with the initial wire segment forming step. , and not suitable for bundling.

It is therefore an object of the present invention to form coiled and bundled wire coils of various lengths at a high production rate. Another objective is to provide a coil production system that smoothly coordinates wire processing and coil sorting and shipping mechanisms. Yet another purpose is to
By reducing the interdependence between the system's modes of operation, which has been a feature of many previous attempts,
The goal is to reduce constraints on the optimization of system operations. Another object of the present invention is to improve wire gripping, coiling, bundling, and ejection functions and to improve control systems for controlling process parameters for these and other steps.

These and other objects include fl) a. wire sensing means; b. means for engaging a pre-cut supply wire;
(2) a set of rotating mandrels each having means for restraining the wire when it has been wound into a coil-wound configuration, and means for releasing the wire after the winding operation has been completed; (3) controllable mandrel drive means for rotating each mandrel in necessary steps; (3) a wire supply for said mandrel;
(4) indexing means for sequentially moving each mandrel to the wire supply, coil winding, and discharge positions; and (5) mandrel drive control, indexing mechanism, and wire supply. , coiling, and ejection station operations to control wire engagement,
This is accomplished by a coil production system equipped with a control system that simultaneously performs coil winding and discharge operations to continuously produce coils.

Hereinafter, the present invention will be described in detail with reference to the drawings.

In the embodiment of FIG. 1, four identical mandrel assemblies (7) are each rotatably mounted 9 on a turret (6).
) is used. Rotation of the turret relative to the machine frame (2) is facilitated by the shaft extension element F51, (91) of the turret, as described below.The entire system including the frame, turret and motor drive , and is mounted within a movable assembly that can be positioned relative to the coil distribution position.

The mandrel (71) is rotatable by a servo-controlled motor (Ml) for coil winding operations;
l) drives the mandrel at necessary stages during operation via a transmission system in a shaft (Iη, turret) f61 coaxial with the rotating shaft (5).

Pre-cut wire segments to be coiled (I
6) is discharged from a wire processing unit (not shown). This wire processing unit may be a wire marker machine, a stripper, etc.

The wire segment) [161 is fed into each mandrel (7) in turn through a threading die (36), a wire sensing unit (26), and a guide system with +2 force. After passing through the sensor, the tip portion of the wire passes through a notch in the mandrel housing +31 and engages the wire clamp (15+) of the mandrel play (10).

The control action begins when the wire is detected by the sensor (261 J force), causing each mandrel to rotate in engagement with the drive shaft ση. Clamp the end of the groove and then start winding the coil.

When the coiling operation begins, each mandrel is indexed and displaced into an adjacent quadrant.

In FIG. 1, for example, a mandrel in position (A) supports a supply wire and rotates to position (B) while continuing its winding operation. The mandrel in position (B) and its coil is moved to position (C) in preparation for ejection. The empty reel assembly at position (D) moves to position (A) to receive the next supply wire. This is achieved by an indexing mechanism [25+, f2111+] connected to a rotating shaft (9) that rotates the turret (6).

When the rear end portion of the wire coiled on the mandrel (located at position (B)) passes each sensor t261, (271), the mandrel is separated from the drive shaft 11η,
Stop winding operation.

During the next indexing operation, the reel rotates to the position (C) where the wire coils are bundled. The reel is then indexed and transferred to the position (DI) where the coiled and bundled wire (55) is discharged onto the conveyor (4?).
The conveyor 0η transfers this wire coil to each turning gate 67)
to one of the 50 discharge frames.

These operations occur continuously and automatically as pre-cut wire segments are fed into the machine, where the segments are held, gripped, wound, bundled, and discharged onto a conveyor.

A length of wire (16) as shown in detail in Figure 2 of the mandrel.
is guided to the mandrel (7) at the wire feeding position by a pair (7) of rollers (2OA), (20B) and a threading die (36), and the threading die (36) is
This wire is guided through the sensor (2F5, QD and an opening in the reel casing (3(a)) to the rotor assembly of the mandrel. For this purpose, each die (36) is fitted with a pair of flanges (36B). It is rotatably attached to the turret between the wire guide tube (36
A). The cam (90) occupying the feed position restrains the die reaching that position and the tube (36A) connects the wire to the sensor (4), (2η) and the mandrel housing (
34) to the mandrel rotor assembly.

Each of these assemblies has a spindle (circular plate 00 attached to 321) with a cap nut (8). Each plate has a serrated outer periphery, and a V-shaped segment H1ll is rotatably attached to the notch thereof. V-shaped sum segment (111 is play) (
101 to form a concave wire retaining surface.

This surface is located within 3ψ of the associated mandrel housing, and as shown in FIG. 5, the inwardly directed leg portions of each rim abut and support flanges (34B) secured to the housing. Each housing is a bracket (34C)
It is attached to the turret (6) by.

As shown in FIGS. 2 and 5, the peripheral rim segment α
D is attached to a metal fitting (12) rotatably attached to each pin (12A). Each pin (12A)
is cross-linked and supported in each notch of plate aO).

In the winding and bundling modes, each rim mechanism (tU.

+t21 is positioned in the state shown in FIG. 2 and in the state received on the upper mandrel in FIG. This positioning is controlled by a cam follower (4) attached to the spindle (32) of each mandrel and a respective spring (44) biasing the cam in the radial direction (43).
is connected to the foot and each rim mechanism fill, +121, thereby holding the rim mechanism fill, ++, 2+ against the plate σω by its stop member (12B).

This coil engagement position is changed when the mandrel reaches the release position shown at the bottom of FIG. For this purpose, a cam (46) is provided on the machine frame (2), which displaces the arriving footman (41) outwardly against its associated spring (44).

When this displacement occurs, the drive link (43) eccentrically rotates each rim mechanism (1ll) So, 21 to the positions shown in FIG. 5 (bottom mandrel) and FIG. Release the clamp and allow the wound and bundled coil to slide off the mandrel onto the conveyor (47). After that, the mandrel is placed in the supply position (A).
When the index is moved, the retainer (41) is retracted by the spring (44), and the rim mechanism Ti1l, 112
1 returns to the wire securing position.

Mandrel Wire Clamp As shown in FIGS. 9 and 10, a wire clamp lever (83) is rotatably attached to each mandrel plate QOI by a pivot assembly (83A). As shown in FIG. 10, the outer end portion of the clamp lever (83) is connected to a stop member (84) fixed to the plate α0).
It has a clamping surface (83B) opposite to.

In the illustrated position, the opposing surfaces of the stop member (84) and the lever clamp (to) are separated to receive the wire end (16) that is fed to the mandrel. When the mandrel starts rotating, the lever @3) rotates,
Its clamping end (83B) moves towards the stop member (between) and clamps the wire end.

This rotation is accomplished by a cam and follower device, which controls each play 1- (101
It has a cam (80) attached to a housing (34) having both bottoms at the bottom of the housing. The cam engages the cam follower leg (81A) of the latch (81). The latch is pivotally attached to plate (10) by a clevis (82) having a pivot pin (82A).

The portion (81B) of the latch (81) passes through the opening (1d3) in the plate 00) and engages the wire clamp lever (spider).

A spring (81C) biases the latch into contact with the cam surface (80).

When the rotation of the mandrel begins from its reset position, the follower portion (81A) rides up onto the cam (80) and its end portion (BIB) engages the clamp lever (81A) shown in FIG.
3) moves downward from the congruence state with.

Here, plate 00) and tab (83) of lever (83)
D) and the spring (
) pulls the kupunpunpa into the wire engagement position.

To reset the clamp, the clevis (88) has a tab (
Rotatably mounted on 8 (G), clevis (88)
has a shaft portion (88A) that passes through the hole in the tab (83C) of the clamp lever (83). The spring (88B) of the shaft (88A) elastically separates the clamp lever and the rim mechanism.

When the illustrated mandrel reaches the ejection position, the rim mechanism +tn, +121 pivots as previously described.

This action causes the clevis (c) and its shaft (88A
) swings the clamp lever (83) into its release position, releasing the wire end portion. When this happens, the lever (
The latch portion (81B) that was obstructed by the clamp (83) moves upward through the hole (IOB) and returns to the reset position to prepare for the next clamping operation.
) in a ready state.

Mandrel Drive System The motor (Ml) shown in Figure 1 drives the mandrel via a pulley and belt system, and the driven boom! It35) is fixed to the main drive shirt (17) as shown in FIG. Toshiba and motor (described later)
Ml) is controlled by a tachometer generator discharge.

As shown in FIG. 5, the shaft σ7) is supported by the rotating shaft (5) and drives the parent bevel gear (211). Drives the bevel gear (221).

Each gear (22) is connected to a clutch assembly (23), (241) whose output side is connected to a respective spindle (321). Each clutch has an associated wire sensor (26), (241).
It is sequentially controlled by a switch unit +311 responsive to η. When the wire is detected, switch unit 1
31), the clutch system connects to the shaft (321).
is clutched to the gear (22), and the mandrel starts rotating.

Coil Bundling As shown in FIG. 1, the coil bundling operation begins when each mandrel with a wire coil is moved from position (B) to position (C). For this purpose, Figures 4 and 8
As shown in the figure, the bundled part at position (C) is the hydraulic pressure operating path 5.
01 with a pair of diametrically opposed bundling mechanisms.

Each hydraulic actuation 11 e501 has a hydraulic cylinder (2) mounted on a bracket (53A) fixed to the machine frame (2). Each cylinder has a piston rod (52)
is activated, and the distal end is equipped with an applicator (appl).
icator) 54) is connected. Under the control of a valve system (not shown), each piston rod (5'
! I moves inwardly towards the wire coil, and its applicator I54 is inserted into the housing (three notches (3)).
4A) and wrap a suitable cord around the wire coil swivel. To provide sufficient clearance for this action,
The rim feature fill, f12 comprises two pairs of adjacent features spaced apart from each other with a greater spacing than that corresponding to the cutout circle of the plate α0), or otherwise all equally spaced. Now, when the rod (52) is retracted, it pulls the applicator (!i4) outwards and removes it from the mandrel housing (341).

Once the bundling or strapping operation is complete, an indexing operation occurs, moving the bundled coils to the release position (D) and bringing the new coil for the bundling operation to position (C).

Each time the indexing mandrel engages a wire segment and begins its coiling operation, the turret (6) is indexed by 900 indexes. This operation is initiated by each wire sensing unit when it senses a new wire segment. As shown in Figure 11,
Motor CM2) Id, motor control unit (9
5) A shaft (99A) which responds to this signal via a shaft (99A) and supports a pulley (99) via a belt and pulley two system (98), (99) as shown in FIG.
Drives Geneva mechanism with rotor top fixed to.

The rotor has an eccentric pin positioned to engage slot C301 of the Maltese cross Q. The Maltese cross (251) is fixed to the rotating shaft (9) of the turret (6).

Each time the motor (M2) is activated, the rotor is operated after the rotation and sends appropriate control signals to the motor (M2).

Control System The control of operation of the system is shown schematically in FIG. The motor (Ml) is connected to each clutch unit (231, (
241 and associated switch units (31) to drive each mandrel (7). The wire is a wire sensor (
26), the associated clutch is actuated and the motor (Ml) drives the mandrel connected to it. As shown in FIG. 2, the speed of the motor (Ml) is controlled by a feedback control tachometer (19), and this tachometer signal is transmitted to the motor control (93).
is compared with a reference speed signal given to

During the period when the wire is engaged, a wire sensing signal is sent from the wire sensor to the motor control (95), and the motor control (95) fully operates the force motor (M2).
Start the indexing operation. When the 900 displacement due to this is completed, at that moment SWIN 4- (97) 75E
It works. Motor control (95)ld Motor (
Stop the operation of M2).

In a preferred embodiment, the motor control system:
It is embodied as a programmable controller consisting of a microprocessor, and not only receives the input signals shown in FIG. It also receives an input signal from a sensor that detects whether it has backed up.

These additional input signals ensure that after the wire has been gripped for coiling, the mandrel in position (B) is stationary, and the coil bundling actuator is placed on the mandrel in position (C). Indexing will only occur when it is engaged and then removed from its mandrel.

[Brief explanation of the drawing]

FIG. 1 is a perspective and partial schematic diagram of the coil production system; FIGS. 2, 3, and 4 are large scale turret and mandrel assemblies of the system showing various phases of system operation; FIG. The perspective view shown in Figure 5 is +5 in Figure 1.
1- [Longitudinal cross-sectional view taken along line 51, Figure 6 is f6 in Figure 5) - Transverse cross-sectional view taken along line +61, Figure 7 is an elevational view of the turret and mandrel assembly seen from the indexing and feeding mechanism side. , FIG. 8 is an elevational and partially cutaway view of the mandrel in the bundling position; FIGS. 9 and 10 are a broken away elevational and plan view of one mandrel having a wire flantz and hi-set mechanism, respectively; FIG. 1'l: Schematic diagram of the control system. (A) ... Supply position (B) ... Winding 9 position (C) ... Bundling position ('D) ... Release position (6) ... e--turret (7j@fist...・Mandrel (17) ・Fist...Shaft (47) --------Conveyor 55) &...Wire coil (Ml) ...Motor patent applicant Geraman Aerospace Corporation Agent Kenbu Niimi (1 other person)

Claims (1)

Claims: fil i (a) wire sensing means; (b) means for securing to a pre-cut feed wire; (C) constraining the wire to the coiled configuration in which it is wound. and (d) means for ejecting said coil after the coil winding operation is completed; and (i) a control for rotating each mandrel at necessary stages during said coil forming operation. iii < wire supply, winding, and discharge positions; iv indexing means for continuously moving each mandrel to the wire supply, winding, and discharge positions; Controls controlling the E-mandrel drive control, indexing mechanism, and wire feeding, winding, and discharge positions to coordinate the operations performed at each position and to produce continuously wound coils. A wire coil production system characterized by comprising a system and. (2) The coil according to claim 1, further comprising a bundling position located between the winding position and the release position, and means for restraining the wound coil. equipment. (31) The control system causes coil winding, bundling, and release operations to be performed simultaneously at each of the corresponding positions.
). (4) i engaging a coiling means in a first position to begin coiling the first wire segment; and ii further winding the partially coiled first wire segment; iv displacing the coiled first wire segment to a second position; iv retaining the second wire segment in the first position to a coiling means to begin coiling it; and iv moving the coiled first wire segment to a third position; At the same time, the second wire segment is transferred to the second position where the coil winding is completed, and (i) the third wire segment is engaged with the coil winding means at the first position, vi. A method for forming a coil, characterized in that the steps are periodically repeated for subsequent wire segments that are fed one after another, and the coil is continuously fed. - (5) The method according to claim (4), which includes the step of applying a restrainer stage to the wound coil. (6) Claims (4) or (5) include the step of releasing the wound coil while another coil is being wound. Method described.