JPS6342108A - Coil winding machine - Google Patents

Abstract

PURPOSE:To contrive improvement in efficiency of a coil winding work by a method wherein the moving speed of a tensioner is controlled by adjusting the revolutional speed of a leadscrew, and the wiring pitch for a coil bobbin is controlled properly. CONSTITUTION:The resistance value of the variable resistor 36, used as a pitch setting means, is set at the value corresponding to the winding pitch of the wire 4 of the bobbin 1 to be used for a coil. Then, the moving speed of a tensioner 5 is controlled by regulating the driving of a belt moving means 26 and by adjusting the revolutional speed of a leadscrew 9, and the winding pitch of the wire 4 for a coil bobbin 1 is controlled at the prescribed value. Accordingly, the winding pitch of the wire 4 can be changed in accordance with the change in the wiring specifications of the coil by merely setting the resistance value at the value corresponding to the desired winding pitch by manipulating the knob of the variable resistor 36. As a result, the setting and changing of winding pitch can be performed simply, accurately and quickly, and the working efficiency of coil winding can also be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a coil winding machine for forming a coil by winding a wire around a coil bobbin. This invention relates to an improved coil winding machine.

2. Description of the Related Art As shown in FIG. 5, a conventional coil winding machine has a main shaft 2 that rotates with a coil bobbin 1 fitted to its tip, and a main shaft motor 3 that rotates the main shaft 2 in a fixed direction. , a tensioner 5 that applies tension to the wire 4 wound around the coil bobbin 1, and a tapered roller 6 provided at the base end.
The tensioner 5 has a lead screw 9 to which rotational force is transmitted via a belt 8 from a pulley 7 fixed to the root of the main shaft 2, and the tensioner 5 has a winding width W with respect to the coil bodon 1.
The traverser 1o was configured to have a traverser 1o that guides the winding of the wire 4 by reciprocating within the traverser 1o.

The traverser 10 includes a movable support plate 11 screwed onto the screw shaft of the lead screw 9, a front detection switch 12 provided before and after the movable support plate 11 for setting and detecting the front &Ij of the winding @W, and the rear It consisted of a rear detection switch 13 for setting and detecting the end, and a front clutch 14 and a rear clutch 15, such as electromagnetic clutches, which are provided on the shaft of the lead screw 9 and rotate the lead screw 9 in forward and reverse directions. Further, an arm 16 extends from the movable support plate 11, and a tensioner 5 is provided at the tip of the arm 16 via a mounting plate 17. Furthermore, a belt hooking ring 18 is provided at the intermediate portion of the belt 8 hooked between the pulley 7 of the main shaft 2 and the tapered roller 6 of the lead screw 9. A lever 19 is attached to move the belt 8 in a direction perpendicular to the belt 8. The belt retaining ring 18 and the lever 19 constitute means for regulating the winding pitch of the wire 4. In FIG. 5, reference numeral 20 is a control circuit for controlling the winding width, etc., and reference numeral 21 is a drive circuit for the main shaft motor 3, etc.

In such a conventional coil winding machine, in order to regulate the winding pitch of the wire 4 on the coil bobbin 1, the lever 19 is operated in the direction of arrow A or arrow B to move the belt retaining ring 18 to the belt 8. It is only necessary to shift it by a predetermined amount in the perpendicular direction. Then, the winding position of the belt 8 relative to the tapered roller 6 moves in the direction of arrow C or D, and the belt 8 is wound around the position of the diameter corresponding to the predetermined winding pitch set by the lever 19. . That is, the ratio of the diameter of the tapered roller 6 of the lead screw 9 to the diameter of the pulley 7 of the main shaft 2 changes. When the entire device starts operating in this state, the lead screw 9 will move as indicated by the arrow E.
The rotational speed of the belt 8 changes depending on the position of the belt 8 around the tapered roller 6.

That is, when the belt 8 moves in the direction of arrow C and is wound around, the rotational speed becomes slow, and conversely, when it moves in the direction of arrow C and is turned around, it becomes faster.

Since the rotational speed of the lead screw 9 changes in this way, the moving speed of the movable support plate 11 screwed to the lead screw 9 in the directions of arrows G and H also decreases in accordance with the rotational speed of the lead screw 9. , it becomes faster. Therefore, the reciprocating speed of the tensioner 5 relative to the coil bobbin 1 also changes, and the winding pitch of the wire 4 relative to the coil bobbin 1 changes. That is, when the belt 8 moves around the tapered roller 6 in the direction of arrow C, the winding pitch becomes smaller, and conversely, when the belt 8 moves in the direction of the arrow and winds around it, the winding pitch decreases. The winding pitch of the wire 4 was regulated so that the number increased to 6 or more.

Problems to be Solved by the Invention However, in such conventional coil winding machines, the winding pitch is set by operating the lever 19 in the direction of arrow A or arrow B. The structure around the lever 19 is complicated, as the structure around the lever 19 is complicated.The structure around the lever 19 is complicated. It was. Furthermore, the lever 19 may not be securely fixed, making it impossible to set the winding pitch accurately, and the winding pitch may change due to vibrations during operation. Furthermore, since the setting was performed entirely mechanically using the lever 19, it was not possible to set or change the winding pitch electrically. Therefore, an object of the present invention is to solve such problems.

Means for Solving the Problems The means of the present invention for solving the above problems consists of a main shaft that rotates with a coil bobbin fitted to its tip, a main shaft motor that rotationally drives this main shaft, and It has a tensioner that applies tension to the wire to be wound around the bobbin, and a lead screw that transmits rotational force from the main shaft via a belt to a tapered roller provided at the base end. A coil winding machine having a traverser that guides wire winding by reciprocating within the coil winding machine, and a belt moving means that moves the winding position of the belt from the main shaft to an intermediate part of the belt that is stretched around a tapered roller of a lead screw. , a detecting means for detecting the amount of rotation of the rotating shaft of the belt moving means, a pitch setting means for setting a predetermined winding pitch, and an output signal of the detecting means and the pitch setting means. A comparator is provided to compare the winding pitch of the wire to the coil bobbin, and the belt moving means is driven and controlled by the matching signal from the comparator, and the rotational speed of the lead screw is adjusted to control the tensioner moving speed. This is done by a coil winding machine that regulates the

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an explanatory diagram showing an embodiment of a coil winding machine according to the present invention. In the figure, the main shaft 2, which rotates in a fixed direction by fitting the coil bobbin 1 into its tip, is provided horizontally in the main body.

A main shaft motor 3 is connected to the base end of the upper shaft 2, and the main shaft 2 is driven to rotate in a fixed direction by driving the main shaft motor 3.

A traverser 10 is provided in parallel next to the main shaft 2. This traverser 1o is a tensioner 5 described later.
is moved back and forth within the winding width W of the wire 4 on the coil bobbin 1 to guide the winding of the wire 4,
A lead screw 9 receives rotational force from a pulley 7 fixed to the root of the main shaft 2 via a belt 8 to a tapered roller 6 provided at the base end, and a screw shaft of the lead screw 9 is threaded. The combined movable support plate 11, a front detection switch 12 and a rear detection switch 13 provided before and after the movable support plate 11 for setting and detecting the front end of the winding width W, and a rear detection switch 13 for setting and detecting the rear end, and the lead screw 9. A front clutch 14 and a rear clutch 15, such as an electromagnetic clutch, which are provided on the shaft of the lead screw 9 and rotate the lead screw 9 in forward and reverse directions.
A tensioner 5 is attached to the movable support plate 11 of the traverser 10. This tensioner 5 applies tension to the wire 4 wound around the coil bobbin 1, and is fixed to the support shaft 22 and attached to the support shaft 22.
It consists of a rail 23 that rotates together with the support shaft 22, and a tension generation source 24 such as a powder brake that applies an appropriate braking force to the rotation of the support shaft 22. The tensioner 5 is attached using a mounting plate 17 provided at the tip of an arm 16 extending from the movable support plate 11.

In FIG. 1, reference numeral 20 is a control circuit that controls the winding width, etc., reference numeral 21 is a drive circuit for the main shaft motor 3, etc., and reference numeral 25 is a brake that applies braking force to the rotation of the main shaft 2.

Here, in the present invention, a belt moving means 26 is provided at an intermediate portion of the belt 8 that is stretched from the pulley 7 of the main shaft 2 to the tapered roller 6 of the lead screw 9, and a belt moving means 26 is provided near the belt moving means 26. A potentiometer 27 is provided. The belt moving means 26 is
It moves the position of the belt 8 around the tapered roller 6, and includes a pitch change motor 28 made of a DC motor or the like, a rotating screw shaft 29 thereof, and a support plate 30 screwed onto the rotating screw shaft 29. and a belt hooking ring 31 projecting from the support plate 30. When the pitch changing motor 28 is driven, the rotating screw shaft 29
rotates as appropriate, and the support plate 30 is rotated along this rotating screw shaft 29.
moves forward or backward in the directions of arrows A and B, and as a result, the belt retaining ring 31 moves on the belt 8. The potentiometer 27 serves as a detection means for electrically detecting the amount of rotation of the rotating screw shaft 29, and has a pulley 33 fixed to the rotating shaft 32 of the wiper that slides on a resistance element provided inside. A belt 35 is passed between the rotary screw shaft 29 and a pulley 34 fixed to the base thereof, so that the wiper can be rotated. and,
As shown in FIG. 3, the potentiometer 27 has a resistance value of 0Ω when the rotation angle is 0 degrees, and J
When the rotation angle is 180 degrees, the resistance value is IOKΩ.

Further, inside the control circuit 20, as shown in FIG. A comparator 37 is provided for comparing the output signal with 36. The variable resistor 36
is used to set the winding pitch of the wire 4 within the winding width W of the wire 4 on the coil bobbin 1 shown in FIG. 1. For example, as shown in FIG.
The resistance value of Ω can be set from 0Ω to 10 in accordance with the value of the pitch setting range.

The comparator 37 inputs and compares the detection signal from the potentiometer 27 and the output signal from the variable resistor 36,
By outputting a coincidence signal when the rain sounds match, it is detected that the rotary screw shaft 29 of the belt moving means 26 has rotated to a point corresponding to a predetermined winding pitch. Note that, as shown in FIG. 2, behind the comparator 37.

A motor driver 38 for sending a drive signal to the pitch change motor 28 is connected.

Next, a winding pitch regulating operation in the coil winding machine configured as described above will be explained. First, a desired winding pitch is set by adjusting the resistance value of the variable resistor 36 shown in FIG. That is, by turning the knob of the variable resistor 36, Ω is set to a resistance value of 5, which corresponds to, for example, the winding pitch p1 in FIG. As a result, p of the pitch setting range shown in FIG. 4 is set as the current winding pitch.

Next, in this state, the start button 39 shown in FIG. 1 is pressed to start the operation of the entire apparatus. At this time, the pitch changing motor 28 of the belt moving means 26 is driven, the rotary screw shaft 29 thereof rotates in a predetermined direction, and the support plate 30 moves forward in a predetermined direction, for example, in the direction of arrow A. Then, the support plate 3
The belt retaining ring 31 protruding from the belt 8 also moves forward in the direction of the arrow A, pushing the belt 8 in the right angle direction. This allows the belt 8 to be placed around the tapered roller 6 at a position indicated by the arrow C, for example.
move in the direction. At this time, as the rotating screw shaft 29 of the pitch changing motor 28 rotates, the boo IJ 34 also rotates in the same direction, thereby rotating the rotating shaft 32 of the potentiometer 27 via the belt 35 and pulley 33. Then, the wiper of the potentiometer 27 slides on the resistance element, and its resistance value changes according to the characteristic curve shown in FIG. This change in resistance value is output as a detection signal S of the amount of rotation of the rotating screw shaft 29, and this detection signal S is input to one terminal of a comparator 37 in the control circuit 20 shown in FIG. A signal S2 corresponding to the resistance value 5 set in the variable resistor 36 and Ω is input to the other terminal of the comparator 37.

If the rotary screw shaft 29 rotates a certain amount and the resistance value of the potentiometer 27 becomes, for example, 5Ω, the potentiometer 27 input to the comparator 37
The detection signal S1 and the output signal S2 from the variable resistor 36 match, and the comparator 37 sends out a match signal S3.

Then, this coincidence signal S is inputted to the motor driver 38, and the motor driver 38 sends a drive signal $4 whose content is "motor stop" to the pitch changing motor 28.

Upon input of this drive signal S4, the pitch changing motor 28 stops rotating. As a result, the one-turn screw shaft 29 stops rotating in the predetermined direction, the support plate 3o also stops moving forward in the direction of arrow A, and the belt retaining ring 31 protruding from the support plate 30 is also held at that position. Stop pushing against. Therefore, the movement of the belt 8 around the tapered roller 6 in the direction of arrow C is also stopped, and the belt 8 is fixed at that position. As a result, the ratio of the diameter of the tapered roller 6 of the lead screw 9 to the diameter of the pulley 7 of the main shaft 2 is fixed at a certain value, and the reciprocating movement of the tensioner 5 with respect to the coil bobbin 1 due to the rotation of the lead screw 9 is fixed. The movement speed is set to a certain value. As a result, the winding pitch of the wire 4 with respect to the coil bobbin 1 is regulated to the initially set value Pl.

Next, when changing the winding pitch to p2, for example, turn the knob of the variable resistor 36 to change the resistance value of the variable resistor 36 to 7 and Ω corresponding to the winding pitch p2 in FIG. All you have to do is set . At this time, in the same way as above,
The winding position of the belt 8 relative to the tapered roller 6 moves in the direction of arrow C or arrow D, and is fixed at a predetermined position.

As a result, the speed at which the tensioner 5 reciprocates with respect to the coil bobbin 1 due to the rotation of the lead screw 9 is changed, and the winding pitch of the wire 4 with respect to the coil bobbin 1 is changed to 22. The winding pitch of the wire 4 is regulated by the above operation. When the required winding operation for the coil bobbin 1 is completed, the stop button 40 shown in FIG. 1 is pressed to stop the apparatus.

Although FIG. 2 shows only one variable resistor 36 for setting the winding pitch,
The present invention is not limited to this, but two or more variable resistors 36 as pitch setting means are provided in parallel, and each of the variable resistors 36, 36 . ... are set to different winding pitch values, and each variable resistor 36, 36, . ... may be switched.

In this case, it is possible to switch and set multiple types of winding pitches with a single touch.

Effects of the Invention Since the present invention is constructed as described above, the belt can be adjusted simply by setting the resistance value of the variable resistor 36 as a pitch setting means to a value corresponding to the winding pitch of the wire 4 with respect to the coil bobbin 1. The tensioner 5 is adjusted by driving and controlling the moving means 26 to adjust the rotational speed of the lead screw 9.
The winding pitch of the wire 4 with respect to the coil bobbin 1 can be regulated to a predetermined value. Therefore, even when changing the winding pitch of the wire 4 in response to changes in the coil winding specifications, simply operate the knob of the variable resistor 36 to change the resistance value to a value corresponding to the desired winding pitch. All you have to do is set it up, and you can easily, accurately and quickly set and change the winding pitch. From this, the working efficiency of the coil winding can be improved. Further, the position where the belt 8 is wound around the tapered roller 6 of the lead screw 9 is determined by the belt moving means 26.
Since the winding is moved and fixed by the windings, it is securely fixed, and the winding pitch will not change due to vibrations during operation. Furthermore, winding pitch setting means (variable resistor 36)
and actual pitch detection means (potentiometer 27)
Since each of these is made up of electrical components, the winding pitch can be set and changed electrically.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing an embodiment of a coil winding machine according to the present invention, Fig. 2 is a block diagram showing parts related to the present invention in the control circuit, and Fig. 3 shows the characteristics of a potentiometer as a detection means. 4 is a graph for explaining the setting of the winding pitch by a variable resistor as a pitch setting means, and FIG. 5 is an explanatory diagram showing a conventional coil winding machine. 1... Coil bobbin 2... Main shaft 3... Main shaft motor 4... Wire 5... Tensioner 6... Tapered roller 7.33.34... Pulley 8.35... Belt 9... Lead screw 10... Traverser 16... Arm 17... Mounting plate 20... Control circuit 21... Drive circuit 26... Belt moving means 27... Potentiometer (detection means) )28...Pitch changing motor 29...Rotating screw shaft 30...Support plate 31...Belt retaining ring 36...Variable resistor (pitch setting means) 37...Comparator

Claims (1)

[Claims] A main shaft that rotates by fitting a coil bobbin to the tip,
A main shaft motor that rotationally drives this main shaft, a tensioner that applies tension to the wire wound around the coil bobbin, and a lead that transmits rotational force from the main shaft to a tapered roller provided at the base end via a belt. In a coil winding machine having a screw and a traverser that moves the tensioner back and forth within the winding width of the coil bobbin to guide the winding of the wire, the belt is stretched from the main shaft to the tapered roller of the lead screw. A belt moving means for moving the winding position of the belt moving means is provided in the intermediate portion, a detecting means for detecting the amount of rotation of the rotating shaft of the belt moving means is provided, and a pitch setting means is provided for setting a predetermined winding pitch. Furthermore, a comparator is provided to compare the output signals of the detection means and the pitch setting means, and the belt moving means is driven and controlled by the matching signal from the comparator, and the rotational speed of the lead screw is adjusted, thereby adjusting the tensioner moving speed. A coil winding machine characterized in that the coil winding machine controls the winding pitch of the wire on the coil bobbin.