JPS6029249A - Automatic rubber plug inserter - Google Patents

Abstract

PURPOSE:To automate insertion of wire through a rubber plug with increased speed by providing a slave slider having a rubber plug inserting means constituted of a rubber plug supporter formed with a rubber plug mounting hole at the end. CONSTITUTION:A wire carry/hold means B is comprised of a chain clamp body 2 and an auxiliary clamp 3. A rubber plug inserting means C is comprised of a master slider 5 and a rubber plug supporter 7 mounted at the front on the side of a slave slider 6 mounted slidably on the side of the master slider 5. The rubber plug supporter 7 mounted with a rubber plug is driven by a cylinder 11 through the slave slider 6 to collide against the rear end of a wire guide 14 thus to collide the front end 6a of the slave slider 6 against the rear end of a stopper 9 provided on the head 8 of the master slider 5. Here, the rubber plug is restricted by the cover 15 to position the rubber plug reliably thus to insert the wire through the rubber plug.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for automatically inserting a rubber plug into the tip of an electric wire.

Conventionally, in a series of wire end processing processes that include inserting a rubber plug, especially a waterproof rubber plug, into the tip of the wire, stripping the wire, and attaching and tightening the terminal, insertion of the rubber plug into the wire has been done manually. However, the following various problems have been raised due to the extremely high insertion resistance of the rubber plug into the electric wire. That is, the conventional method for inserting a rubber plug into an electric wire was carried out in the order shown in FIGS. 1(1) to 1(5).

First, as shown in (1), insert the wire insertion hole in the rubber stopper.

There is a tapered part a at the tip of the enlarged part all with a larger diameter.

Insert the rubber stopper into the jig provided with the rubber stopper guide part a through the rubber stopper. Next, as shown in (2), enlarged part a.

The hole of the rubber stopper is forcibly expanded in step (4), and the tip guide part a1 of jig a is held against the tip of the electric wire C as shown in (4). Move the rubber stopper with the hole enlarged to the turtle #JO side using the suppressor d,
As shown in (5), the method involved passing a rubber plug b through the electric wire O and attaching it. However, with this method, it is difficult to align the tip of the wire and the tip of the jig due to the bending of the piezoelectric wire when inserting the rubber plug, and the hole in the rubber plug is forcibly enlarged, causing permanent damage to the rubber plug. This may cause a decrease in waterproof performance. Also, when inserting a rubber stopper into a jig, the nozzle part of the rubber stopper may turn over and become impossible to insert.Furthermore, if the rubber stopper is cylindrical in shape, it is fine, but if the rubber stopper is square, it may not be possible to insert the stopper in the circumferential direction. There were many problems such as difficulty in determining the direction of the image, and processing capacity was limited, making automation and speeding up extremely difficult.

It is an object of the present invention to provide an apparatus that completely eliminates these conventional problems and can automate and speed up the process of inserting a rubber plug into an electric wire.

The present invention will be explained below based on the attached drawings showing examples.

FIG. 2 shows a front view of the apparatus for automatically inserting a rubber plug into an electric wire according to the present invention, FIG. 3 shows a side view thereof, and FIG. 4 shows a plan view of the main parts thereof.

In these figures, the rubber plug self-insertion device of the present invention has electric wire conveying and holding means B installed on a fixed frame 1, respectively.
It is roughly composed of a rubber plug insertion means C for one electric wire, a wire guide means D1, and a rubber plug supply means E.

First, as shown in FIG. 3, the electric wire conveying and holding means B is provided with an annular chain clamp body 2 having a plurality of electric wire gripping clamps 21L attached to the outer periphery and behind the chain clamp body 2. It consists of an auxiliary clamp 3.

The annular chain clamp main body 2 constitutes a part of an automatic wire end processing machine, and when the wire W is rotated a certain distance in a direction perpendicular to the axis of the wire W, the wire W is placed on the line of the rubber plug insertion means G by the clamp 2a. It has the function of conveying and at the same time properly positioning the wire, and also has the function of equally pressure-transferring the electric wire, which has been inserted into the rubber plug, to the next process of wire stripping process and terminal mounting and crimping process. The auxiliary clamp 3, which is a wire holding means, is a columnar clamp 3 fixed above the wire W.
a and a clamp 3b attached to the drive cylinder 4 below the electric wire W so as to be movable up and down, and a recess 3 a + for gripping the electric wire W is formed at the lower end of the clamp 3a. On the other hand, the groove 3 of the clamp 31L is formed on the upper end surface of the clamp 3b.
A convex portion 3b' that fits into a1 is formed. This auxiliary clamp 3 functions to fix the tip of the electric wire held by the clamp 2a.

Next, the means 0 for inserting the rubber plug into the electric wire is inserted into the earthen wall 1 of the fixed frame 1.
A parent slider 5 is slidably attached to the inner surface recess of the parent slider 5, a child slider 6 is slidably attached to the side of the parent slider 5, and a rubber plug supporter is fixedly attached to the front button of the side of the child slider 6. It consists of 7. Thus, a U-shaped head 8 is fixedly attached to the front end of the main slider 5, and a stopper 9 is fixed to the center of the side surface of the head 8, which can come into contact with the front end 6a of the child slider 6. head 8
The upper end of the apparatus is connected to the upper part of the apparatus stand 1 by a spring 10. Further, the child slider 6 is connected to the drive cylinder 11 at the rear thereof via a connecting portion 6'. Therefore, the parent slider 5 and the child slider 6 are cylinders 11
After the slider 1C moves forward (to the left in the figure) and its front end 6a comes into contact with the stopper 9, it performs a delayed operation such that it moves forward in conjunction with the child slider 6. Also, when the child slider 6 moves backward (to the right in the figure), the spring 10
It returns to its original position by the action of Further, the front end of the rubber plug supporter T has a rubber plug mounting hole 12 provided with a groove 12' with the front end and side surfaces open and into which the tip of the electric wire W enters.
is formed. Therefore, when the front end of the rubber plug supporter T comes into contact with the rear end of the wire guide 14 of the wire guide means handle section, which will be described later,
is fixedly attached to the child slider 6 at a position where it contacts the stopper 9.

Next, the electric wire guide means is attached to a pair of slide pros and cones 13 that are installed vertically in the door 8 in the U-shape of the parent slider 5 described above, and to the front part of the slide pro and cones 13. It is comprised of a pair of electric wire guides 14 and a cover 15 attached to the side of at least one slide block 13 (the upper slide block 13 in the figure). A pair of slide pro, ri 13 is U-shaped, recess opening 1 in do 8
The guide rod 171C is fitted vertically in the vertically mounted drive cylinder 1 of the drive cylinder 1 and the guide rod 171C is fitted vertically in the cylinder 6.
g! Due to the action of L, 18b, the recess opening 16 of the door 8 is opened.
The electric wire WK is moved towards the electric wire WK conveyed to the central part of the interior. Further, the pair of wire guides 14 are arranged on opposing end surfaces 1.
4a and 14b are formed in recesses, and even when they are close to each other and in the closed state, they form a space slightly larger than the periphery of the electric wire W, and the electric wire W fixed by the auxiliary clamp 3
It acts to shape the tip of the tube in the axial direction, and also has a space into which a rubber stopper, which will be described later, is inserted.

Further, the cover 15 has the function of closing the side of the rubber plug mounting hole 12 formed at the front end of the rubber plug supporter T, and may be attached to the side end of the lower slide pro 13. Alternatively, the upper and lower parts may be separately attached to both slide protrusions.

Next, as shown in FIG. 2, the rubber plug supplying means X is a long rubber plug magazine 1 placed on a fixed base 20 in a horizontal direction perpendicular to the rubber plug supporter 7! From l, fix the fixing base 20 at the height of the rubber stopper mounting hole 12 of the rubber stopper supporter 7.
A groove 19& for inserting a rubber stopper is formed in the longitudinal direction of the center. In addition,
FIG. 5 shows a left side view of the rubber plug magazine 19.

Further, 21 is a rubber stopper, which has a wire insertion hole 2 in the axial direction of the wire W.
A large number of grooves 11L are arranged in parallel in the groove 191L. Each time one rubber plug 21 is inserted into the electric wire, it is pushed out by air into the rubber plug mounting hole 12 of the rubber plug supporter 7, completing the setting.

Next, the operation of the present invention will be explained with reference to FIGS. 6 to 8 which show enlarged perspective views centering on the wire guide means portion in addition to FIGS. 2 and 3.

First, the rubber stopper 21 in the rubber stopper magazine 19 is supplied from the side to the rubber stopper mounting hole 12 of the rubber stopper supporter 7 by an air source (not shown). During the busy period, the electric wire W which is gripped, conveyed and positioned by the clamp 2a of the chain clamp main body 2 is moved to the auxiliary clamp 3a driven by the cylinder 4 as shown in FIG.

3b is closed and fixed, at the same time, the wire guide 14 is guided from the up and down arrow directions by a pair of sliders 13 driven by cylinders 18a and 18b, and performs a closing operation to prevent the wire from bending. to correct. Recessed portion 14a of wire guide 14.

As described above, the space formed by the 14bVC is slightly larger than the wire diameter even in the closed state and does not have the effect of fixing the wire.

Next button, the rubber plug supporter 1 with the rubber plug mounted thereon is driven forward by the cylinder 11 via the child slider 6 (in the direction of the left arrow P in FIG. 7) and comes into contact with the rear end of the wire guide guide 14. , the front end 6a of the child slider 6 also comes into contact with the rear end of the stopper 9 provided on the paddle 8 of the parent slider 5. At this time, the rubber stopper is closed on its sides by the cover 15 and is restrained, leaving only forward movement, so that the rubber stopper is reliably positioned and held. Also, at this point, as shown in FIG. 8, the wire insertion hole 21a (not shown) of the rubber plug held in the rubber plug mounting hole 12 of the button rubber plug supporter T is inserted closest to the tip of the wire W. The situation is on the verge. Next, the child slider 6 pushes the stopper 9 further forward, so as the child slider 6 moves forward, the parent slider 5 also moves forward, and the electric wire guide 14, which is integrally installed in the door 8, synchronizes with the rubber plug supporter 7. Advance. Then, the rubber plug held in the rubber plug mounting hole 12 of the rubber plug supporter 7 is inserted into the fixed electric wire W.

When the insertion of the rubber stopper into the wire is completed, the wire guide 14
Then, the auxiliary clamps 3a and 3b are opened, and as the parent slider 5 and child slider 6 are moved back by the spring 10, the one-wire guide 14 and the rubber plug supporter T are moved back to their original positions.

Although the present invention has a ring-like structure and operating mechanism, the ring-shaped chain clamp main body 2 for conveying electric wires is commonly required for automating various processing steps of electric wires, and is suitable for the apparatus of the present invention. Although it is not essential, it is also possible to manually transport the wire using only the auxiliary clamp 3 as a means for transporting and holding the wire, and in the above embodiment, the rubber stopper supporter T is The rubber stopper mounting hole 12
As described above, multiple rubber plug mounting holes are provided in parallel in the rubber plug supporter so that rubber plugs can be inserted into multiple electric wires such as flat cables (multi-strand electric wires) at the same time. It is also possible.

Further, a spring 10 and a cylinder 1 are used as a driving source for delaying the forward and backward movement of the parent slider 5 and child slider 6.
1 is used, but any drive source may be used as long as it is capable of such delayed operation.

Since the automatic rubber plug insertion device for electric wire λ of the present invention has the above-described structure and operation, it eliminates the disadvantages of conventional manual operation, namely insertion errors due to loose wires and forced expansion of the rubber plug. The problem of permanent deformation of the rubber plug due to the bending of the rubber plug, the inability to insert the rubber plug due to curling of the nozzle part, and the difficulty in determining the circumferential direction of the square rubber plug, which conventionally has a directionality, is all solved at once, resulting in a reliable and loss-free wire handler. allows the insertion of a rubber stopper,
In addition, by automating the process of inserting the rubber plug into the magnetic wire, speeding up has been achieved, which, together with the reduction of labor costs, reduces costs.
It has remarkable effects such as stabilizing the uniformity of finished products and preventing the occurrence of defective products.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of the conventional method of inserting a rubber plug into an electric wire, Figure 2
The figures are a front view of the device for automatically inserting rubber wire into electric wires of the present invention, FIG. 3 is a side view thereof, FIG. 4 is a plan view thereof, FIG. 5 is a left side view of the rubber plug magazine, and FIGS. FIG. 8 is an enlarged perspective view centered on the guide means portion for explaining the present invention in detail. 1... Frame, 2... Chain clamp body, 2a.
... Clamp:, 3, 3a, 3b... Auxiliary clamp,
5... Parent slider, 6... Child slider, 7...
・Rubber plug supporter, 8...Head, 9...Stroke, Pa, 10...Spring, 11...Cylinder, 12...
...Rubber stopper mounting hole, 13...Slide Pro, 14
...Wire guide, 15...Cover, 17...
Block guide rod, 19... Rubber plug magazine, 20...
Fixed stand, 21...Rubber stopper. Patent applicant Yazaki Sogyo Co., Ltd.

Claims (2)

[Claims] (1) It consists of a holding means for electric wires, a parent slider equipped with a head and a stopper facing the holding means, and a child slider mounted on the parent slider so as to be movable, and the parent slider is vertically mounted on the head. A wire guide consisting of a pair of slide blocks attached to a block guide rod so as to be able to move toward and away from the block, a pair of wire guides attached to the front part of the slide blocks, and a cover attached to the side of at least one of the slide blocks. An automatic rubber stopper insertion device, characterized in that the child slider has a rubber stopper insertion means consisting of a rubber stopper supporter having a rubber stopper mounting hole formed at its tip. (2) Claim #! characterized by having a rubber stopper supplying means consisting of a rubber stopper T gasine disposed L close to the rubber stopper supporter! Described in Section 1