JPS604108B2 - Wire winding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a winding device for winding wire, particularly electric wire, onto a bobbin having a tapered collar.

In order to wind an electric wire such as an enameled wire or a bare copper wire onto a bobbin, the bobbin is rotated, the electric wire is guided by a traverser that moves back and forth between the two brim portions of the bobbin, and the wire is wound in multiple layers around the bobbin's chest. There is.

However, if the brim of the bobbin is tapered, the winding width increases as the wire is wound.
Correspondingly, it is necessary to increase the stroke width of the traverser. For this reason, in the past, for example, before the wire is wound onto a bobbin, it is passed over a roller for measuring the winding amount, and the amount of wire wound is calculated from the total number of rotations of this roller. The stroke width of the traverser is controlled by calculating a target value for the stroke width of the traverser from this calculation result and the shape and dimensions of the bobbin. However, with such a winding device, it is difficult to accurately measure the amount of wire wound up. For example, errors occur due to slipping between the wire and the roller, and this error accumulates until the end of winding. Therefore, there was a drawback that appropriate control was not performed. In another conventional example, the electric wire is sent out by a roller at a constant rotation speed to keep the wire speed constant, and the traverser is controlled based on a sequence preset according to the shape and dimensions of the bobbin. A specific example of this is the one described in Japanese Patent Publication No. 51-18237, which has the same cross-sectional shape as the tapered collar of the bobbin and moves in the axial direction integrally with the bobbin. A tapered die and a contact element that generates a signal to reverse the moving direction of the bobbin by contacting the tapered surface of the tapered die are provided, and each time a layer of wire is wound on the bobbin, the tapered die is A sequence is set so as to move a predetermined amount in the direction perpendicular to the direction, so that the gap between the contact and the tapered mold simulates the widening of the collar of the bobbin. However, in this example, since the line speed and traverse speed are constant, the winding is dense at the beginning and sparse at the end, making it impossible to wind neatly along the brim. It is difficult to keep the linear speed constant even if the speed is gradually reduced, and the difference due to variations in linear speed accumulates, and when the linear speed is changed, the sequence settings must be changed. There was a flight. The present invention has been made in view of the above-mentioned points, and eliminates the accumulation of measurement errors due to slips between the wire and the rollers and errors due to fluctuations in the wire speed, and significantly reduces the winding rotation speed and wire speed. The object of the present invention is to provide a wire winding device that automatically adds and controls sequence settings even when changes are made, and does not require changing sequence settings.

Another object of the present invention is to provide a line winding device that can be constructed at low cost without using a special column length device for controlling the traverser.

Note that in the present invention, the width direction refers to a direction parallel to the central axis of the bobbin. Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

In FIG. 1, a bobbin 1 having a flat flange lb and a tapered flange lc at both ends of both ears la is connected to the shaft of a winding motor 2, and further includes a rotation pulse generator for detecting the number of rotations. 3 are provided coaxially. A linear velocity detection roller 6 to which a linear velocity pulse generator 5 is coaxially connected is disposed in the middle of the path of the electric wire 4, and the electric wire 4 is guided by a guide sheave 7a provided at the tip of a traverser 7 while passing through the bobbin 1. It has been designed to be captured by others. The traverser 7 is supported by sliding bearings 8a and 8b with its moving axis parallel to the axis of the bobbin, and is connected to a timing belt 10 stretched between a pair of drive rollers 9a and 9b at a - point by a bobbin 10a. There is. One drive roller 9a is connected to a drive pulse motor 11c, and as the drive pulse motor 11c rotates, the traverser 7 reciprocates, and the guide sheave 7a moves around the bobbin at both flanges lb, l.
It is configured to guide the electric wire 4 by reciprocating between C and parallel to the wire of the bobbin. Also, the bearing 8a of the traverser 7,
A detection rail 7b is protrudingly provided between 8b for activating a detector to be described later to detect the stroke position. Further, a first detector 12 operated by the detection rod 7b,
A second detector 13 and a detector 14 are provided, of which the first detector 12 is adjusted and fixed at a position where it operates correspondingly when the electric wire 4 is at the left end of the bobbin chest la. There is. The second detector 13 is fixed to the right side of the first detector 12 on a movable table 13a which is screwed into a feed screw 16 that is rotationally driven by a correction pulse motor 15c and is movable in parallel with the traverser 7. , the detector 14 also has a second
To the right of the detector, it is fixed to an adjustment table 14a whose position can be adjusted with an adjustment screw 17 on a movable table 13a.
The second detector 13 and the detector 14 are adjusted to positions such that they operate when the electric wire 4 is at the middle and right end of the bobbin body la, respectively, at the time of initial setting for winding the electric wire. The first and second detectors 12, 13 and detector 14 used here are preferably ones with high detection accuracy such as microswitches, proximity switches, or photoelectric switches, and the material and shape of the detection bar 7b are used. It goes without saying that it must be adapted to the detector or type of detector. Next, to explain the control circuit, as shown in FIG. 3, the outputs of the rotational pulse generator 3 and the linear velocity pulse generator 5 are as follows.
It is connected to a detection interface unit 18 that counts each pulse for a certain period of time and converts it into rotational speed and linear velocity.

The calculation unit 19 calculates the diameter Do of the chest la and the angle 8 of the tapered collar lc, which are set in advance by the setting switch 20 according to the shape of the bobbin 1, and the rotational speed N and linear velocity V output from the detection interface unit 18. Based on this, calculations are performed to determine the target value W of the stroke width of the traverser 7. That is, as shown in Fig. 2, the winding diameter of the wire is D, the increment is d, the length of the chest la is Wo, and the winding length of the wire in the bobbin axial direction (
This is equal to the stroke width of the traverser 7).
If the same increment is 1, there is a relationship of W:Wo l, so if 1 is found, W is determined from this and Wo.

However, there is a relationship of 1=(tano)・d/2 ■, which is also D.

Since 10d=V/mN d Ni V/Nichi D.

■ becomes, and from ■, ■ formula 1 ni (tan8), (V/2 ken N1D.

/2) ■ is obtained (however, stroke is pi). Therefore, for the inputs Do, H, N, and V,
It is configured using a microcomputer or the like to calculate a formula and output a value corresponding to 1. Here, the diameter Do of the arm portion la of the bobbin and the angle 0 of the collar portion lc are input by the operator from the setting switch 20.
A storage section is provided in which bobbin formats are determined in advance and diameters Do and angles 0 corresponding to various formats are stored, and when the operator inputs only the bobbin formation, the corresponding diameters Do and angles 8 can be stored. Alternatively, the type of bobbin 1 may be detected by a sensor when the bobbin 1 is attached to a winding device. Further, the first detector 12 and the detector 13 are connected to a gate circuit 21, and the gate circuit 21 is connected only during the period when the detection signals are output from both detectors (for example, when the first detector 12 The gate is opened only from when the second detector 13 is turned OFF until the second detector 13 is turned ON.

The output of the pulse generator 11a for controlling the drive pulse motor 11c is connected to the input of the gate circuit 21, and the output of the gate circuit 21 is reset every time the count is made. A counting section 22 that counts the number of bars is connected. The output of the counting section 22 is connected to a subtracting section 23 that stores the first counting result and creates a difference signal from subsequent counting results.The output of the subtracting section 23 is subjected to appropriate correction for unit matching. is performed and connected to the comparator 15a together with the output of the arithmetic unit 19. The comparison section 15a compares both inputs and outputs a pulse according to the magnitude of the comparison result.
5c is configured to rotate forward or backward by an angle corresponding to the number of pulses. By the way, the pulse generator 1
1a is configured to generate a pulse with a frequency corresponding to the rotational speed of the bobbin 1, and its output is connected to the gate circuit 21 and also to the drive circuit 11b. The drive circuit 11b is configured to rotate the drive pulse motor 11c by an angle corresponding to the number of input pulses, and also drive the traverser 7 in both forward and reverse directions so as to reciprocate. That is,
When the traverser 7 is at the left end and the first detector 12 is operating, the traverser 7 is moved to the right, and when the traverser 7 is at the right end and the detector 14 is operating, the traverser 7 is moved to the left. , is configured to control the rotational direction of the drive pulse motor 11c. Further, each of the above-mentioned motors is configured to be individually and manually operable for adjustment by switching a changeover switch (not shown). In the wire winding device configured as described above, first, when the boppin is installed, the guide sheave 7a at the tip of the traverser 7 is
The position is adjusted using the adjusting screw 17 so that the detector 14 is activated when the detector is at the right end.

At the same time, the diameter Do and angle 0, which are determined by the shape and dimensions of the bobbin, are input and set using the setting switch 20. Further, if the diameter Do and angle 0 are automatically read out as described above, this operation is omitted. Next, after winding the electric wire 4 several times around the same portion la of the bobbin 8 via the guide sheave 7a, the winding motor 2 is driven.
A pulse having a frequency corresponding to the number of rotations of the bobbin is outputted from the pulse generator 11a.

The drive circuit 11b is actuated by this pulse, and the drive pulse motor 11c is driven to a rotation speed corresponding to the number of pulses to move the traverser 7, and the first detector 12 and the detector 14 are actuated by the detection rod 7b. Each time, the drive pulse motor 11c is reversed, and the traverser 7 guides the electric wire 4 between both ends of the bobbin body by the guide sheave 7a, and the electric wire 4 is wound in multiple layers. However, as the electric wire 4 is wound onto the bobbin, the winding diameter D of the electric wire increases, and this changes the relationship between the rotation speed N of the bobbin and the linear speed V of the electric wire 4.
performs the calculation of the above formula (2) and generates a constant output. On the other hand, in the counting section 22, the traverser 7 is connected to the first detector 12.
The number of output pulses from the pulse generator 11a is counted only while moving between the detector 12 and the second detector 13, but since the correction pulse motor 5c is not yet driven, The distance has not been changed, therefore, the counting result is the same as the initial one, and the output of the subtractor 23 is a sound. Therefore, the comparison section 15a generates an output pulse corresponding to the difference between the outputs of the calculation section 19 and the subtraction section 23, and the output section 15b drives the correction pulse motor 15c.
The moving table 13a will move to the right by a distance of 1 calculated by the calculation unit 19. As a result, the detector 14
moves similarly and the detection position is changed to the right, so the traverser 7 reciprocates through the correspondingly changed stroke width, and eventually the electric wire 4 is wound up in an orderly manner along the bobbin taper collar lc. . Furthermore, as the correction pulse motor 15c is driven, the second detector 13 also moves to the right, so the counting result of the counting section 22 increases from the initial value and an output is generated in the subtracting section 23. The output of the comparator 15a decreases accordingly, and the correction pulse motor 15c stops in an equilibrium state. The following steps are repeated for the same machine, and wire 4 is connected to bobbin 1.
It is wound up. In this way, the rotation speed of the bobbin 1 and the wire speed of the electric wire are constantly measured, the target value of the stroke width of the traverser 7 is determined in response to these changes, and the stroke width of the traverser 7 is thereby controlled. Therefore, appropriate control can always be performed, and even if there is a temporary change in the target value due to slips, noise, etc., this error will not be accumulated and control will be achieved by obtaining the appropriate target value at the next moment. It is something.

This control may be performed continuously, but for example, when winding an electric wire with a very fine wire diameter, the increase in diameter by winding one layer is extremely small, so it should be performed once every several layers. It is also possible to perform intermittent control such as correction of In the embodiment described above, the control pulses of the drive pulse motor 11c are used to measure the moving distance of the moving table 13a, but this can also be measured independently using a side length device such as a digital scale or a potentiometer. It is also possible.

Further, although the moving table 13a is configured to move parallel to the moving direction of the traverser 7, for example, a rack is provided on the traverser 7, and a pinion that engages with the rack converts the parallel movement into a rotation angle. Detection rod 7b
The moving table 13a may be configured to move the detector activated by the D on the same circumference. Further, in this embodiment, pulse motors are used for the drive pulse motor 11c and the correction pulse motor 5c, but depending on the embodiment, it is also possible to use a DC servo motor, an AC servo motor, a synchronous motor, a hydraulic servo cylinder, etc. as appropriate. It is.

Furthermore, as the first and second detection means, a rotation pulse generator and a linear velocity pulse generator are used to count the output of these pulses for a certain period of time. It is also possible to convert, and furthermore, it is also possible to configure the whole in an analog manner. Furthermore, although this example describes a case in which only one of the bobbin brim portions is tapered, it can also be applied to a bobbin in which both brim portions are tapered, and there are no limitations on the shape of the taper. For example, it can be applied to a case where the taper is two steps, an arc shape, or a body part which is tapered. Further, although a guide sheave is provided at the tip of the traverser to guide the electric wire, conversely, the guide sheave may be fixed and the bobbin may be moved by the traverser. As described above, the present invention
The bobbin 1, which has a tapered brim, is rotated, and the wire rod 4 is moved by a traverser 7 that reciprocates between both brim
In the device for winding the wire 4 onto the bobbin 1, the device includes a first detection means 3 for detecting the rotation speed N of the bobbin 1, a second detection means 5 for detecting the linear velocity V, and the shape and dimensions of the bobbin. a storage unit 20 that stores data related to the data detected by the first detection means 3 and the second detection means 5;
A calculation unit 19 calculates a change in the winding length of the pobbin in the gutter direction due to an increase in the amount of winding on the bobbin of the line village 4 based on the data of Since it has a detector 14 that is movable in the width direction for detecting the stroke width on the side of the brim, and a correction section 15 that is moved in accordance with the change 1 of the detector 14,
As the winding operation progresses and the winding diameter of the wire rod 4 increases, the stroke width of the traverser 7 can be appropriately increased, and the wire rod 4 can be wound in an orderly manner along the tapered collar of the bobbin. can. Changes in the axial winding length of the bobbin 1 as the amount of winding of the electric wire 4 onto the bobbin 1 increases based on the detection values by the first detection means 3 and the second detection means 5 and the data in the storage unit 20 Even if the rotational speed N and linear velocity V fluctuate or are artificially significantly changed, the target value W can be calculated accurately. Even if an error occurs due to slippage between the detection means 5 and the like, the error will not be accumulated, and the data can be stored appropriately for various bobbins 1 having different dimensions and shapes. An appropriate target value W can be calculated and controlled. Furthermore, since the detector 14 is moved in accordance with the amount of change, control is easy and errors are small. Further, a fixed first detector 12 detects the stroke position of the traverser 7, and a second detector 12 is arranged apart from the first detector 12 in the width direction and is movable integrally with the detector 14. Detector 13
, a pulse generator 11a that generates a number of pulses according to the amount of movement of the traverser 7, and a pulse generator 11a that generates pulses only while the traverser 7 moves between the first detector 12 and the second detector 13. A counting unit 22 that counts the number of pulses generated by
and a correction unit 15 for moving the detector 14 and the detector 13 so that the change in the count result by the counting unit 22 matches the change 1 in the winding length in the winding direction. There is no need to use a special cross length device, and it can be constructed at low cost.

In particular, if the traverser is configured to reciprocate in synchronization with the pulses of the pulse generator, the pulse generator can be shared, and errors in neck length can be further reduced. Furthermore, if the detector is provided so that its position can be adjusted with respect to the second detector, initial setting of the stroke width of the traverser becomes easier.

[Brief explanation of drawings]

The drawings show embodiments of the present invention; FIG. 1 is a front view of a wire winding device of the present invention, FIG. 2 is a front view of an example of a bobbin, and FIG. 3 is a block circuit diagram showing a control circuit. . 1... Bobbin, lb, lc... collar, 2
...... Winding motor, 3... Rotating pulse generator (
first detection means), 4... electric wire, 5...
・Line distance pulse generator (second detection means), 7...
・Traverser, 11a...Pulse generator, 11
b...Drive circuit, 12...First detector, 13...Second detector, 13a...
・Moving table, 14...Detector, 14a...
・Adjustment table, 15... Correction section, 16a... Comparison section, 19... Calculation section, 21... Gate circuit, 22... Counting Part, 23... Subtraction part. Figure 1 Figure 2 Figure 3

Claims (1)

[Scope of Claims] 1. In a device that rotates a bobbin 1 having a tapered flange, guides the wire 4 by a traverser 7 that reciprocates between the two flange portions, and winds the wire 4 around the bobbin 1. a first detection means 3 for detecting the rotation speed N of the rotation speed N;
A second detection means 5 that detects the linear velocity V, a storage section 20 that stores data regarding the shape and dimensions of the bobbin 1, and a storage section 20 that stores the detected values by the first detection means 3 and the second detection means 5 and the storage section 20. A calculation unit 19 that calculates a change 1 in the axial winding length of the bobbin 1 due to an increase in the winding amount of the wire 4 onto the bobbin 1 based on the data, and a tapered shape to control the stroke width of the traverser 7. A detector 14 that is movable in the width direction detects the end of the stroke on the side of the brim, and the detector 14 is
A wire winding device characterized in that it has a correction section 15 for moving the wire rod in accordance with the movement of the wire rod. 2. In a device that rotates the bobbin 1 with a tapered brim, guides the wire 4 by the traverser 7 that reciprocates between the brim, and winds the wire 4 onto the bobbin 1, the rotation speed N of the bobbin 1 is a first detection means 3 for detecting;
A second detection means 5 that detects the linear velocity V, a storage section 20 that stores data regarding the shape and dimensions of the bobbin 1, and a storage section 20 that stores the detected values by the first detection means 3 and the second detection means 5 and the storage section 20. A calculation unit 19 that calculates a change 1 in the axial winding length of the bobbin 1 due to an increase in the winding amount of the wire 4 onto the bobbin 1 based on the data, and a tapered shape to control the stroke width of the traverser 7. A detector 14 movable in the width direction that detects the stroke end on the side of the traverser, a fixed first detector 12 that detects the stroke position of the traverser 7, and a first detector 12 that is movable in the width direction. A second detector 13 arranged apart from the detector 14 and movable integrally with the detector 14, and a pulse generator 11a that generates a number of pulses according to the amount of movement of the traverser 7.
, the traverser 7 connects the first detector 12 and the second detector 1
A counting section 22 counts the number of pulses generated by the pulse generating section 11a only while moving between A wire winding device comprising a detector 14 and a correction section 15 for moving the detector 13. 3. The wire winding device according to claim 2, wherein the traverser 7 is driven back and forth in synchronization with pulses from the pulse generator 11a. 4. The detector 14 is provided so that its position can be adjusted with respect to the second detector 13.
The wire winding device described in Section 1. 5. The wire winding device according to claim 2 or 3, wherein the detector 14 also serves as the second detector 13.