JPH02209369A - Wire winding device - 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] [Industrial application field] The present invention relates to a wire winding device for winding wire onto a bobbin.

[Conventional technology]

Wire rods such as electric wires are supplied to the market in a state where they are wound around bobbins after being subjected to predetermined processing. For example, enameled wires are coated with enamel and then subjected to a process of being wound around bobbins.

5 and 6 show a conventional wire winding device used for this winding. In FIG. 5, the wire 40 is
The wire rod 40 is taken up by the take-up capstan 8 of No. 7 and guided from the capstan 8 to the winder 10, and is equipped with a traverser 11 and a bobbin 20. taken. Figure 6 shows these configurations, with bobbins on both sides! A bobbin 20 equipped with W 21.22 is rotated by the winding motor 1, and by this rotation, the wire is wound onto the bobbin 20 while maintaining the tension within a certain range. The traverser 11 is screwed onto a helical shaft 12.
2 is rotated in the forward and reverse directions by a driving means 13 such as a motor, so that the traverse heel 11 reciprocates in the length direction of the bobbin 20 and winds the wire 40 around the bobbin 20 in an orderly manner.

In such a winding device, the wire 40 is attached to the bobbin collar 2.
1.22, and for this reason, the traverser 11 that guides the wire 40 must be wound within the bobbin collar 21.
22, the direction of movement must be reversed. 14.15 uses bobbin 20 to perform this reversal.
This is a limit switch provided corresponding to the bobbin collar 21.22 of the bobbin collar 21.22, and when the traverser 11 reaches the bobbin collar 21.22, the driving means 13 rotates in the opposite direction and acts so that the traverser 11 moves in the opposite direction. ing.

[Problem to be solved by the invention]

In the conventional device, limit switches 14 and 15 are connected to bobbin 20.
If the traverser 11 is installed with high accuracy, the reversal timing of the traverser 11 will be accurate, and the wire will be properly wound. However, if the set position of the bobbin 20 or the set position of the limit switch 14.15 is not accurate, or if a deviation occurs due to the load force during winding work, the limit switch 14.15 and A relative displacement occurs between the bobbin collars 21 and 22. In such a state, the reversal timing of the traverser lacks accuracy, and the wire is wound in an abnormal state. FIG. 8 shows the bobbin 20 wound with wire rod in the state shown in FIG.
On the side, the wire is excessively wound and a winding pile H is formed, while on the bobbin collar 21 side, a winding pot ■ is formed due to insufficient winding of the wire, and winding abnormalities occur at both ends of the bobbin 20. Occur.

In order to prevent such winding abnormalities, conventionally, an operator monitors the winding state and adjusts the positional deviation of the limit switch. However, such monitoring and positional shift adjustment by a worker is complicated, requires extra work, and has poor workability.

A dedicated sensor is installed to monitor the winding state without relying on the operator, and when it detects misaligned winding near the edge of the winding drum, it prevents misaligned winding by changing the shift width and reversal timing of the traverser. A winding control device for this purpose is disclosed in Japanese Unexamined Patent Publication No. 156156/1983. This winding control device consists of a pair of reversal sensors for detecting the reversal position on both drum flanges, a pair of monitoring sensors provided inside the sensors, and a tension adjustment loop mechanism for introducing the wire to be wound. (including a fixed pulley and a movable pulley), a transducer that detects the displacement position and direction of the movable pulley, and a transducer that counts input pulses of the transducer and determines the traverser reversal position when the counted value reaches a predetermined value. It has a motor that changes the position of a pair of reversal sensors to change the position.

However, this winding control device has a problem in that the control mechanism becomes complicated because the pair of detection sensors must be moved in accordance with the count value of the counter.

Therefore, the purpose of the present invention is to omit the adjustment work by the operator,
An object of the present invention is to provide a wire winding device that can automatically monitor the winding state and correct winding abnormalities.

Another object of the present invention is to provide a wire winding device with a simplified control mechanism.

[Means to solve the problem]

In order to achieve the above object, the present invention includes the following means.

(1) Driving means A means for reciprocating a traverser that guides the wire rod in the length direction of the bobbin. This driving means includes, for example, a motor and a helical shaft connected to the motor, and with the traverser screwed onto the helical shaft, the motor rotates in forward and reverse directions to reciprocate the traverser.

(2) Control means A means for controlling the driving means so that the reciprocating movement of the traverser is matched to the length of the bobbin. In order to perform this control, the control means includes a sensor that detects the movement of the traverser at a reference position, and an arithmetic unit that calculates the reversal position of the traverser based on a signal from the sensor. In this case, the sensor is provided to detect movement of the traverser at a fixed position in the length direction of the bobbin. For example, the sensor is provided to detect the traverser at a substantially central position of the bobbin, and the calculation unit uses this position as a reference point to calculate the required movement amount of the traverser in the rightward or leftward direction. Information on the rotational speed of the motor of the driving means and information on the length of the bobbin are stored in advance in the calculation section, and the traverser reciprocates between the bobbin flanges at both ends of the bobbin based on these information and the detection signal of the sensor. The amount of movement to the reverse position is calculated as follows.

In addition to the above-mentioned control, the control means performs control to correct winding abnormalities of the wire rod. This control is performed based on a determination signal from a determining means, which will be described later. For example, when the determining means determines that there is a winding valley, the number of turns of the wire rod in that part is increased, while
If the determining means determines that the wire is a winding pile, control is performed to reduce the number of turns of the wire rod in that portion. Thereby, the wire is wound around the body of the bobbin with a uniform thickness.

(3) Judgment means The 0 judgment means, which is a means for monitoring the winding state of the wire onto the bobbin and determining whether or not there is a winding abnormality, is used to detect winding abnormalities such as winding valleys and winding peaks. This is done at both ends of the bobbin. This monitoring can be performed, for example, by measuring the winding thickness of the wire wound around the bobbin. In order to perform this monitoring, the determination means is constructed by disposing a pair of sensors close to the bobbin in a non-contact manner at both ends of the bobbin, and compares the winding thickness of the wire rod detected by the sensors with each other. Determine whether there is a winding abnormality.

[Effect]

The control means controls the traverser to reciprocate in the longitudinal direction of the bobbin so that the wire is wound uniformly over the entire bobbin. The determination means detects winding abnormalities such as winding valleys and winding peaks during winding, and outputs a determination signal thereof to the control means. Upon input of this signal, the control means performs control to correct the winding abnormality, instead of the above control. Through this control, the reversal position is changed depending on the winding valley or winding peak.

〔Example〕

FIG. 1 shows the overall configuration of an embodiment of the present invention, and the same elements as those of the conventional device are denoted by the same reference numerals and correspond to each other. In the figure, a bobbin 20 is rotated in one direction by a winding motor 1 such as a torque motor, and the wire 40 is taken up by a take-up capstan 8 and then moved to a traverser 11.
The winding material is guided by the bobbin 20 and wound onto the bobbin 20. The traverser 11 is screwed onto a helical shaft 12, and this helical shaft 12
is connected to the motor 13, so that the traverser 11 reciprocates in the length direction of the bobbin 20 by the forward and reverse rotation of the motor 13.

That is, the helical shaft 12 and the motor 13 are connected to the traverser 1
This is a driving means that performs one reciprocating movement. The bobbin 20 has bobbin flanges 21 and 22 at both ends, and the wire 40 is moved between the bobbin flanges 21 and 22 by reciprocating the traverser 11.
．． It is wound over the entire body between 22.

In such an apparatus, the rotational drive of the motor 13 is controlled by a control means 30, and a determination means 50 for detecting an abnormality in the winding of the wire 40 is provided in the bobbin 20 portion. The control means 30 sends a drive signal B to the motor 13.
1 or B2 to control the rotation of the motor 13 in two directions, forward and reverse. This control means 30 is equipped with a position detection sensor 31 for detecting the traverser 11 on the bobbin 20 side, and based on the detection signal A1 of the sensor 31, a drive signal B1 is sent.
, B2 is calculated. That is, when the detection signal AI of the position detection sensor 31 is input to the control means 30, the time required for the traverser 11 to reach the hobbin collar 21 or 22 is calculated, and the drive signal B1 or B2 is switched based on the calculation result. act to do. In this embodiment, the position detection sensor 31 is provided at the center of the bobbin 20, and when the length of the body of the bobbin 20 (that is, the interval between the bobbin collars 21 and 22) is L, the control means 30 The time required for the traverser 11 to move by L/2 in the right or left direction is calculated. In this case, the control means 30 stores L or L/2 data depending on the type of bobbin 20, and each time the bobbin 20 is replaced, data of L or L/2 regarding that bobbin is selected. The switching timing is calculated based on this data. It should be noted that the position detection sensor 31 may be disposed approximately at the center of the bobbin 20 because the winding abnormality is corrected by the operation described later, and it is not necessary to dispose it at the exact center.

Similarly, the position detection sensor 31 may be arranged at a position other than the central position, for example, at a position such as L/3 or L/4 from the bobbin collar 21, and this information and its calculation formula are stored in the control means 30. The switching timing can be calculated by

The determining means 50 detects winding abnormalities such as a winding pile and a winding pot during winding of the wire rod 40. This determining means 50 includes two sets of distance detection sensors 51, 52 and 53. which detect the distance of the body of the bobbin 20 to the winding in a non-contact manner.
It is equipped with 54. These sensors are distance detection sensor 5
1.52 and 53.54 are respectively attached to the base plate 55.56. Among these, − group distance detection sensor 51.52
are arranged at the left end of the bobbin 20, that is, near the bobbin collar 21, and the other pair of distance detection sensors 53 and 54 are arranged at the right end of the bobbin 20, that is, near the bobbin collar 22. Detects a winding abnormality near the end of the winding.

Reference numerals 57 and 58 indicate positioning motors, which operate so that the distance detection sensors 51, 52 and 53, 54 have a constant distance from the windings of the bobbin 20, respectively. In the figure, 60 is a data bus for transmitting the judgment result of the judgment means 50 to the control means 30.

Next, the operation of the present invention will be explained with reference to FIGS. 2, 3, and 4.

As described above, the control means 30 calculates the time for the traverser 11 to reach the bobbin collar 22 based on the input of the traverser detection signal of the position detection sensor 31, and outputs the drive signals B1,
Switch B2. If the timing of this switching is good, the wire 40 is wound to have a uniform thickness in the length direction of the body of the bobbin 20.

FIG. 2 shows this state of winding. In the same figure,
The distance detection sensors 51 and 52 detect the distance to the wire rod wound around the body of the bobbin 20, and when the interval at the sensor 51 is 11 and the interval at the sensor 52 is 20, Il, = 1. , and the detection signals C1 and C2 output from the respective sensors 51 and 52 are equal. In this case, the control means 30 continues to control the motor 13 based on the detection signal from the position detection sensor 31. The determining means 50 outputs the drive signal E1 or B2 to the positioning motor 55 so that the distance detection sensors 51 and 52 maintain a predetermined distance from the wire of the bobbin 20 while the detection signals C1 and C2 are input. The motor 55 is driven.

In such a winding operation, if the control means 30 does not switch the traverser 11 at an appropriate timing, a wire winding abnormality will occur.

FIGS. 3 and 4 show a case where a winding pile occurs as a winding abnormality. In these figures, the winding pile occurs in the outer part of the left end of the bobbin 20, that is, near the distance detection sensor 51, and the distance between the distance detection sensor 51 and the wire material Al t
i r becomes smaller than the distance 10 between the distance detection sensor 50 and the wire, and the detection signal C1,l! :C2 has a different value. As a result, the determining means 50 determines that there is a winding abnormality,
The information is output from the data bus 60 to the control means 30. Then, the control means 30 controls the fourth
Perform control as shown in the figure. When the traverser 11 moves m same-sex backwards and the determination result of the winding pile is input, (m+1
) The motor 13 is controlled so that the traverser 11 reverses at a distance ΔX shorter than the movement amount L/2 from the detection sensor 31 from the (m+n) times. In this case, ΔX is the distance between the distance detection sensors 51 and 52, and this data is stored in the control means 30 in advance. In addition, n
may be changed as appropriate depending on the sensitivity of the distance detection sensor, the wire diameter of the wire 40, etc., but a range of 3 to 7 is substantially sufficient. After the above correction control, the motor 13 is driven so that the traverser 11 reaches the bobbin collar 21 from the (m+n+1)th time. That is, the traverser 11 is controlled to move by L/2 again, and the determination is made again during this movement. As a result, if the winding abnormality is corrected and the winding is normal, (m+n
+2) The movement amount is controlled to be the average value of the movement amount of the (m+n)th and (m+n+1)th times. - On the other hand, if the winding abnormality is within the winding as before, the (m+n)th movement fiX, , 1 is subtracted by ΔX (X, , -
The movement of ΔX) is repeated n times, and if the winding abnormality is a winding valley, ΔX is added to X, +7 (X, ,
, +ΔX) is repeated n times. After correcting these winding abnormalities, winding is further determined and the above control is performed. This makes it possible to reliably correct winding abnormalities.

The distance detection sensors 51, 52, 53, 54 use, for example, a sensor that outputs a linear voltage in the range of 0 to 5 mm, and control the positioning motors 55, 56 to maintain a distance of about 311 from the wire. By doing so, stable detection can be performed. Further, in the above embodiment, the distance detection sensor 51.52 on the bobbin collar 21 side has been described, but the same applies to the distance detection sensor 53.54 on the bobbin collar 22 side, and the detection signal D1 of the sensor 53.54,
While the winding abnormality is corrected based on B2, these sensors 53 and 54 are maintained at a constant distance from the bobbin 20 by drive signals F1 and F2 from the determining means 50 to the positioning motor 58. .

〔Effect of the invention〕

As explained above, the present invention automatically corrects the winding abnormality by controlling the amount of movement of the traverse based on the determination result of the determination means, thereby eliminating the need for monitoring and adjustment by one operator, which saves labor. In addition, the reversal timing is calculated based on the detection signal of the sensor placed at the reference position.
The control mechanism can be simplified.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the overall configuration of an embodiment of the present invention, FIGS. 2 and 3 are side views showing the winding state, FIG. 4 is an explanatory view showing an example of control, and FIG. FIG. 6 is a plan view showing a conventional device, FIG. 6 is a side view thereof, and FIGS. 7 and 8 are side views showing a case where a winding failure occurs and a side view of a bobbin showing the winding state. Explanation of symbols■−・−・−−−1−−Take‐up motor 7−−−−−
−−−・−Takeover machine 8・−・−・・・−Takeover cab stan 10−・−・・・Rewinder 11−・−
......Traverser 12-----Spiral shaft 13----1---Motor 14.15
−−−−−・−・−Limit switch 20・−1−−−
---・-・Bobbin 21.22--------・
-Bobbin flange 30--Control means 31--Position detection sensor 40--
---1--Wire 50-----1 Judgment means 51.52.53.54--Distance detection sensor 55.56--・-Base plate 57.5
8-----1...-Positioning sensor 60---1-
---...-Data bus B1, B2, El, B2
, F1, F2--...- Drive signal AI, C1, C2, DI, D2--------...-
- Detection signal Fig. 5 Fig. 6 1...-- Winding motor 8--------- One take-up cab stan i t--
・--1--Traverser 12--1 Helical shaft 13-m--Motor 20--11--Bobbin 21, 22--11--Bobbin collar 30-----Control means 31--Position detection sensor 40--
---Wire 51.52.53.54---Distance detection sensor 55
．． 56-----Base plate 57.5B--1...Positioning sensor 60=--
---Data bus B1, B2, El, B2, Fl, F2 ・--1--...-Drive signal A1, CI, C2, Dl, B2---1---...
Detection signal 20------Bobbin 21----Bobbin collar 50-------1----Judgment means 51.52-1----Distance detection sensor 55----- --Base plate El, E 2---1--Drive signal C1, C2
-...Detection signal 2nd 3rd

Claims (2)

[Claims] (1) A device for winding the wire onto the bobbin by reciprocating a traverser that guides the wire in the length direction of the bobbin, comprising: a driving means for reciprocating the traverser; and a drive means for reciprocating the traverser; control means that detects at a predetermined position, calculates the amount of movement of the traverser in a reciprocating direction based on this detection point, and compares the amount of movement with a pre-stored setting value to reverse the driving direction of the driving means; , comprising determining means for monitoring the winding state of the wire rod at both ends of the bobbin to determine a winding abnormality; A wire winding device characterized by controlling a driving means. (2) The determining means has a pair of sensors located close to each other at both ends of the bobbin, and determines whether there is an abnormality in the winding of the wire based on a difference in detected values between the sensors. wire winding device.