JP2858917B2 - Automatic winding device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic wire winding device that automatically winds a wire on a pair of bobbins alternately.

2. Description of the Related Art Various automatic winding devices capable of automatically winding a wire on a bobbin have been proposed and developed.

As this automatic winding device, for example, as shown in FIG. 6, a traverser 102 is alternately moved to each bobbin while moving in a body axis direction of each bobbin with respect to a pair of bobbins 100 and 101.
It is known to wind 103. In addition, in the automatic winding device having such a configuration, usually, after the winding of the wire 103 on one bobbin 100 is completed, when switching the winding operation to the other bobbin 101, the sending means 104 operates, and The drawing guide 105 is moved by the sending means 104 and the wire rod 103 is moved.
Part of the wire is pushed out to a predetermined position, the wire 103 is locked and fixed to a claw 107 provided on the rotating body 106 on the other bobbin 101 side, and then the wire 103 is wound around the other bobbin 101. Is configured.

[Problem to be solved]

By the way, usually, such an automatic winding device, when the wire is fully wound on one bobbin (hereinafter referred to as full winding), regardless of the position of the claw of the rotating body,
That is, the feeding means operates regardless of the position of the claw in the rotating body in the radial (radial) direction, and the wire pulling guide is moved to push out the wire. Therefore, if the tip of the claw collides with the wire while the wire crosses the passing rotation area of the claw, the wire may be cut.If this cutting accident occurs, a great deal of labor and time is required until recovery. In short, it is a problem.

Therefore, various attempts have been made to prevent such a cutting accident, but no effective solution has been found, and this is a major problem.

In view of the above circumstances, the present invention locks a wire on a nail and
An object of the present invention is to provide an automatic wire winding device capable of reliably preventing occurrence of a cutting accident in which a wire is cut by colliding with a tip of the claw when the nail is fixed.

[Means for solving the problem]

That is, the present invention includes a detachable bobbin, and winds the wire on one of the bobbins via a traverser in a state where one end of the wire is locked on a claw of each rotating body driven to rotate by a motor. After the wire is fully wound on the one bobbin, the wire drawn from the bobbin is sent out from the other bobbin-side claw by the sending means, and the claw is rotated during the next rotation operation of the claw. An automatic winding device that locks a wire on a claw, thereby performing a winding operation on a next bobbin, and includes a detection unit that detects a current position of the claw on the rotating body, and the sending unit includes: A grooved cam with a coarse pitch and a line guide that engages with the grooved cam and passes through the rotation area of the claw at a higher speed than the other areas while extruding the wire at the tip. Output from the detecting means. The delivery means operated and controlled based on a signal, the pawl is what wire rotation region of the nail passing through the predetermined position is configured to pass across.

[Action]

The automatic winding device for a wire rod according to the present invention has an optimum correlation between the position of the nail in the rotating body in the radial direction and the time and speed at which the wire crosses the wire. At a high speed, the collision between the claw tip and the wire can be reliably prevented.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows an automatic winding device according to the present invention. The automatic winding device includes a pair of bobbins 2, 3 rotating with a rotating body 1, a detecting means 4, a sending means 5, And control means (not shown).

Reference numeral 13 in the figure denotes a traverser, and the wire 6 is wound evenly over the entire body while moving in the axial direction of the body of each of the bobbins 2 and 3.

The rotating body 1 is provided one by one on each of the bobbins 2 and 3, and a claw 7 for locking the wire 6 in a biting state is attached to a peripheral edge thereof, and the rotating driving force from the motor 8 is provided. Is transmitted through a transmission mechanism 9 such as a pulley on the way, and rotates at a constant speed.

The bobbins 2 and 3 are designed to rotate at the same speed as the rotating body 1, and are detachable from the rotating body 1 so that they can be replaced with the next ones when the bobbin becomes full. It has become.

The detecting means 4 checks and detects the current position of the nail 7 in the radial direction on the rotating body 1, and in this embodiment, emits light of a predetermined wavelength (λ) as shown in FIG. It comprises a light-emitting unit 4a and a light-receiving unit 4b that reflects the light from the light-emitting unit 4a after being reflected by the nail 7 and outputs a predetermined signal, and sends the signal to the control unit 14 (see FIG. 5). Output.

When one of the bobbins 2 and 3 becomes full and the other bobbin is wound and the wire 6 is wound, the sending means 5 operates before the wire bobbin 2 is wound. A part of the wire 6 is locked, and in this embodiment, the wire 6 is composed of a groove cam 10 and a wire guide 11.
The transmission means 5 is operated by transmitting the rotational driving force of the motor 8 via the electromagnetic clutch 12, and the electromagnetic clutch 12 is controlled by the control means. As shown in FIG. 3, the groove cam 10 has a small pitch portion 10a in which grooves are formed at a constant pitch on the base end portion, and a larger pitch than the small pitch portion 10a on the intermediate portion and the distal end portion. And a large pitch portion 10b in which a groove is formed. The line pulling guide 11 is normally retracted to a predetermined position, and when one of the bobbins 2 and 3 is fully loaded, the clutch 12 is brought into a "contact" state at a predetermined timing and is operated to reach the predetermined position. The distal end of the main body moves forward. To be more specific, the wire 6
Forward while pressing against
As shown in the drawing, the rotation area α of the claw 7 is
At a predetermined timing within a certain area (dangerous area β)
It is designed to cross and pass at high speed. The line shifting guide 11 of this embodiment includes, for example, a main body 11a having a substantially hexagonal cross section as shown in FIG.
A pin 11b that is implanted on the side and engages with the groove of the groove cam 10, has a hexagonal slide hole for slidably inserting the main body 11a, and has a groove through which the pin 11b freely passes,
And a guide body 11c fixed to a base (not shown).

The control means 14 operates the sending means 5 at a predetermined timing based on the signal output from the detecting means 4 and pushes out the wire 6 by the wire guide 11 and sends it out of the claw 7. Is controlled so as not to be cut by the tip of the claw 7, and a microcomputer is used. That is, the control means 14 controls the claw 7 to move between the time when the leading end of the main body 11b of the line shifting guide 11 enters the dangerous area β and the time when it exits the dangerous area β. Until the time to escape β, the claw 7
Is connected to the clutch 12 so as not to pass through the danger area β, and the input is connected to the output of the detecting means 4 and the output is connected to the electromagnetic clutch 12 as shown in FIG. ing.

〔effect〕

As described above, according to the automatic winding device according to the present invention, after the current position of the claw on the rotating body in the radial direction is confirmed and detected by the detecting means, the sending means is aligned with the predetermined timing. The guide is operated, and the wire rod is traversed and passed at a high speed at a predetermined timing avoiding the time of passage of the nail by using the large pitch portion of the guide line guide at a predetermined timing avoiding the passage time of the nail. Accidental cutting of the wire rod due to collision can be reliably prevented.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an automatic winding device according to the present invention, FIG. 2 is an explanatory diagram showing detection means of the automatic winding device according to the present invention, and FIG. 3 shows sending means according to the present invention. FIG. 4 is an explanatory view showing the operation of the sending means according to the present invention, FIG. 5 is a block diagram showing an electrical connection state of the automatic winding device according to the present invention, and FIG. It is a schematic structure figure showing an automatic winding device. 2, 3 ... bobbin, 1 ... rotating body, 6 ... wire, 13 ... traverser, 7 ... claw, 4 ... detection means, 5 ... sending means, 10 ... groove cam, 11 ... line guide, 14 ... control means.

Claims (1)

(57) [Claims] 1. A claw (7) of each rotating body (1) having a detachable bobbin (2.3) and driven to rotate by a motor (8).
With one end of the wire (6) locked to the traverser (1
3), the wire (6) is wound around one of the bobbins (2.3), and the one bobbin (2
After the wire (6) is fully wound to (3), the wire (6) pulled out from the bobbin (2.3) is fed by the sending means (5) from the claw (7) on the other bobbin (2.3) side. Is also sent outward, and at the time of the next rotation operation of the claw (7), the wire (6)
Is locked to the pawl (7), so that the next bobbin (2
An automatic winding device for performing a winding operation on the rotating body (3), comprising a detecting means (4) for detecting a current position of the claw (7) on the rotating body (1), and the sending means (4) A groove cam (10) having a partially coarse pitch, and the other end of the rotation area (β) of the pawl (7) while engaging with the groove cam (10) and pushing out the wire rod (6). A line guide (11b) passing at a speed higher than the passing speed in (α), and operating and controlling the sending means (5) based on a signal output from the detecting means (4). An automatic winding device, wherein the wire (6) crosses the rotation area of the claw (7) while the claw (7) passes a predetermined position.