JPH01197935A - Coil producing device - Google Patents

Abstract

PURPOSE:To simply adjust the distance between a mandrel pin and an element wire guiding groove and make the distances between leg sections of molded coils and the coil center axis precisely the same length on both ends by forming an insert holder with the element wire guiding groove into an operable structure with a movable mechanism. CONSTITUTION:A mandrel pin 1 is inserted into a pin groove 2a, a coil element wire C is guided through an element wire guiding groove 3a, the end section of the element wire C is held by a coiling head A. A slide section 5b is slid by a micrometer 5c to match the distance (l) from the center axis of the mandrel pin 1 to the end section of the element wire C with the distance L from the center of the mandrel pin 1 to the center of the element wire guiding groove, thereby a holding section connected to the slide section 5b is operated and adjusted. After the adjustment is completed, a screw is inserted into a fixing section 5d having a long hole and fixed to fix the holding section 5a. L can be simply adjusted, and coils C1 and C2 can be precisely molded with no difference.

Description

Detailed Description of the Invention [Objective of the Invention] (Industrial Application Field) The present invention relates to an apparatus for manufacturing filament coils for light bulbs, fluorescent lamps, etc. It relates to a guide body that sends out a wire.

(Prior Art) The conventional technology will be explained using FIGS. 3 to 5. Filament coils used in incandescent light bulbs, fluorescent lamps, etc. usually have two coil wires (
C), and has leg portions (C3) extending in the axial direction at both ends of the coil portion. A device for forming such a filament coil is separated into a coiling head (A) that is driven once and a guide body (B) that can be moved toward and away from the head (A) on the same plane. , a coil wire (
C) is wound at a predetermined pitch.

Here, the guide body (B) has a mandrel holder (2) having a semi-cylindrical outer shape, an insert holder (3), and an insert (4) attached to a mandrel guide (B1) which is a cylindrical through hole. It is configured. Note that (D) is a screw hole for holding the insert holder (3).

A pin groove (2a) into which the mandrel pin (1) is inserted is located approximately in the center of the mandrel pin holder (2).
) is formed in the longitudinal direction. Further, the insert holder (3) is formed with an insert groove (3b) into which the insert (4) is inserted in the longitudinal direction and a wire lead-out groove (3a) into which the coil wire (C) is led out.

Semi-cylindrical mandrel holder (2) and insert (
The insert holder (3) into which the insert holder 4) is inserted is formed into a cylindrical shape by aligning its plane parts with each other, and is inserted into the guide groove (B1). After this, the coil element M (C) is led out from the wire lead-out groove (3a) and the coiling head (
A) is made to grasp the end of the wire (C). At this time, the distance from the center axis of the mandrel pin (1) to the center axis of the end of the wire (C) (hereinafter referred to as l) is the distance from the center of the mandrel pin (1) to the center of the wire lead-out groove (3a). It is adjusted so that it is approximately the same as the distance (hereinafter referred to as the distance).

As a result, the length (CI >
, (C2) are both approximately the same length (a surprise that the invention is trying to solve). However, the distances l and L are not the same from the beginning and are likely to be out of order. Therefore l and L
need to be adjusted to the same distance. At this time, a method is generally used in which l is fixed and L is adjusted. L
The adjustment was carried out by cutting the upper end of the insert (4) or cutting the inner peripheral part of the pin groove (2a).

For this reason, it takes time to adjust, and the length (CI) of the molded coil leg part (C3) from the coil center axis
, there was a difference in (C2). Due to this difference in length, when the coil is supported by an inner conductor of a light bulb or the like, a problem arises in that one end of the coil is not supported reliably.

The present invention has been made in view of the above circumstances.

It is an object of the present invention to provide a coil manufacturing device that can easily adjust the so-called L and can precisely mold the molded coil without causing any difference in (CI) and (C2).

[Structure of the invention]

(Means to solve the problem) In order to achieve the above object, the present invention.

A base, a support mechanism on one side of the base, a mandrel holder held by the support mechanism and having a pin groove, and disposed in opposing contact with the holder.

A coil manufacturing device is provided, comprising an insert holder having a wire lead-out groove, and a movable mechanism that holds this holder and operates in a direction perpendicular to the pin groove of the mandrel holder.

(Function) By providing the movable mechanism, the insert holder can move in a direction perpendicular to the pin groove of the mandrel holder, so the distance between the mandrel pin and the wire lead-out groove can be easily adjusted.

(Example) An embodiment of the present invention will be described with reference to the drawings.

First, (B) is a guide body which is a base, and a mandrel holder (2) has an approximately rectangular outer shape and a mandrel guide (B1) which is a support mechanism for the guide body (B).
) and is held down and fixed from the top with screws (not shown). Also, on the negative side of this holder (2), in the longitudinal direction, there is a mandrel pin (
A pin groove (2a) for inserting the pin 1) is formed.

The movable mechanism (5) also includes an insert holder (3), a holding part (5a) to which this holder (3) is mounted, and a holding part (5a) for attaching this holder (3).
A slide portion (5b) formed in connection with 5a).

A micrometer (
5c) and then a fixing part (5d) that fixes the holding part (5a).

The insert holder (3) has a mandrel holder (
Like 2), it has a rectangular shape and is placed in contact with the mandrel holder (2). This surface in the contact direction has an insert groove (4) for inserting the insert (4) in its longitudinal direction.
3b) and the coil wire (C) in contact with this groove (3b).
A wire lead-out groove (3a) is formed to lead out the wire. This insert holder (3) is attached to the holding part (5a) and fixed with a screw (5e). Also, this holding part (5
a) is connected to a slide part (5b), and this slide part (5b) is connected to this support (B2) by a slide part support (B2) formed on the guide body (B). (5b) is attached with a gap in which it can slide. Further, the end of the slide portion (5b) has a portion (5f) that comes into contact with the micrometer (5c). And this micrometer (5c) is the guide body (B)
It is attached to the arm part (B3) that extends further.

Next, the effects of this device will be explained.

First, as in the conventional example, attach the mandrel pin (1) to pier 8 (
2a), and insert the coil wire (C) into the wire lead-out groove (3a).
), and the end of the wire (C) is connected to the coiling head (A
). Next, in order to make L match the distance l, the slide part (5b) is slid using a micrometer (5c), and the holding part connected to the slide part (5b) is operated and adjusted. After the adjustment is completed, a long fixing part (5d) is used to fix the holding part (5a).
) to secure it.

This made it possible to easily adjust L.

In addition, the lengths (C1) and (C2) from the leg portion (C3) of the coil to the coil center axis were also able to be precisely formed to the same length. Furthermore, insert the slide portion (5b) into the pin groove (
Because it was arranged in a direction perpendicular to 2a).

The coil wire (C) could be drawn out parallel to the mandrel pin (1). Furthermore, since the fixed part (5d) was long, the sliding part (5b) could be slid and fixed within the length of this hole.

〔Effect of the invention〕

The insert holder with the wire lead-out groove is structured to be movable using a movable mechanism, so the distance between the mandrel pin and the wire lead-out groove can be easily adjusted. We were able to make the distances at both ends the same length with high accuracy.

[Brief explanation of the drawing]

Fig. 1 is a side view of a guide body and a coiling head showing an embodiment of the present invention, Fig. 2 is a longitudinal sectional view taken along the line BB-BB in Fig. 1, and Fig. 3 is a side view of a guide body and a coiling head according to an embodiment of the present invention. FIG. 4 is a side view of the coiling head, FIG. 4 is a longitudinal sectional view taken along line AA-AA in FIG. 3, and FIG. 5 is a side view of the formed coil. (B)...Guide body, (Bl)...
...Mandrel guide. (2)...Mandrel Horta. (2a)...Pin groove, (3)...Insert holder. (3a)...Enamental wire lead-out groove, (5)...
Movable mechanism.

Claims (2)

[Claims] (1) A base, a support mechanism on one side of the base, a mandrel holder held by the support mechanism and having a pin groove, and a strand guide groove disposed in opposing contact with the holder. 1. A coil manufacturing device comprising: an insert holder having an insert holder; and a movable mechanism that holds this holder and operates in a direction perpendicular to the pin groove of the mandrel holder. (2) The movable mechanism includes a holding part for mounting the insert holder, a sliding part connected to this holding part and held on the base, a micrometer for moving this sliding part, and a micrometer for moving this sliding part, and a micrometer for moving this sliding part. 2. The coil manufacturing apparatus according to claim 1, further comprising a fixing part for fixing the coil to the base.