JPH07187347A - Rectilinearly advancing feeder for elastic ring - Google Patents

Abstract

PURPOSE:To provide a rectilinearly advancing feeder having a feed clogging releasing function for an elastic ring by which carrying time clogging of the elastic ring can be eliminated and the elastic ring can be smoothly supplied to various machines without stagnating it. CONSTITUTION:A first member 2 and a second member 3 having the mutually parallel guide inside surfaces 5a and 9a in contact with or in close vicinity to the outer periphery of an elastic ring 1, are provided. An exciter 6 to apply feeding vibration to the elastic ring 1 is added to the first member 2. A clogging releasing reciprocating driving mechanism 11 reciprocated and driven in the direction for increasing and decreasing an interval of a carrying passage K formed of a pair of guide inside surfaces 5a and 9a is arranged in the second member 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear feeder for elastic rings.

[0002]

2. Description of the Related Art A straight line feeder is used to automatically supply an elastic ring such as an O-ring to various machines such as an automatic assembly machine. Conventionally, as shown in FIGS. 5 and 6, this straight-moving feeder vibrates the carrier rail a by a vibration exciter b,
The elastic ring d in the guide groove c of the transport rail a is fed with vibration for feeding, and the elastic ring d is transported in a predetermined direction along the guide groove c serving as a transport path.

[0003]

However, since the interval e of the guide groove c is constant, the elastic ring d which is not deformed and has a circular shape as a whole does not cause clogging during conveyance, but the elastic ring is If d is deformed, for example, as indicated by an imaginary line, it will be clogged during conveyance, and the supply of the elastic ring d will be delayed.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a linear feeder having an elastic ring feed clogging releasing function capable of eliminating clogging of an elastic ring during conveyance and smoothly supplying the elastic ring to various machines without stagnation. And

[0005]

In order to achieve the above object, the present invention provides a first member and a first member having mutually parallel guide inner surfaces which abut or come close to the outer periphery of the elastic ring on the opposite side of 180 °. Two members are provided, and the first member is provided with a vibration exciter for imparting feed vibration to the elastic ring,
The second member is provided with a clogging release reciprocating drive mechanism that is reciprocally driven in a direction in which the interval between the conveyance paths formed by the pair of guide inner side surfaces is increased or decreased.

[0006]

[Function] If the elastic ring has a circular shape without any deformation, the vibration given to the first member by the vibration exciter causes
The elastic ring is conveyed (straightened) without causing clogging in the conveying path.

At this time, even if the elastic rings which are all deformed into a non-circular shape are mixed and are jammed in the conveying path, the reciprocating drive mechanism increases or decreases the distance between the conveying paths, thereby pressing the inner surfaces of both guides. The deformation of the elastic ring is corrected. As a result, the clogging of the elastic ring is eliminated, and it becomes possible to carry.

[0008]

The present invention will be described in detail below with reference to the drawings illustrating the embodiments.

FIG. 1 and FIG. 2 show an embodiment of a linear feeder for an elastic ring according to the present invention. This apparatus is designed to abut or come close to the outer circumference of the elastic ring 1 on the opposite side of 180 °. A first member 2 and a second member 3 each having a predetermined length and having parallel guide inner side surfaces 5a and 9a are provided. In the illustrated example, an O-ring is illustrated as the elastic ring 1.

Therefore, the first member 2 has a strip-plate-shaped sliding contact wall portion 4 with which the end face side of the elastic ring 1 is in sliding contact, and a side wall 5 formed along one side edge of the sliding contact wall portion 4. Consists of. The guide inner side surface 5 a is formed by the side wall 5, and the guide inner side surface 5 a
a and the inner end surface 4a of the sliding contact wall portion 4 are orthogonal to each other.

A vibration exciter 6 is attached to the first member 2 to apply a feed vibration to the elastic ring 1 via the first member 2. The vibrator 6 is attached to the fixed portion 7.

The second member 3 faces the sliding contact wall portion 4 of the first member 2 in parallel at a predetermined interval H in the form of a strip plate-shaped cover wall 8.
And a side wall 9 and a mounting wall 10 formed along the other side edge of the cover wall 8, the side wall 9 and the mounting wall 10 project in opposite directions by 180 °.

The guide inner side surface 9a is formed by the side wall 9, and the guide inner side surface 9a and the inner end surface 8a of the cover wall 8 are orthogonal to each other. Further, the side wall 9 of the second member 3 and the side wall 5 of the first member 2 face each other in parallel with a predetermined interval T. This inner end surface 4
A transport path K for transporting the elastic ring 1 is formed by a and 8a and the inner guide surfaces 5a and 9a.

Further, the second member 3 has a space T between the conveyance paths K.
A clogging releasing reciprocating drive mechanism 11 for reciprocally driving the second member 3 in the direction A for increasing or decreasing is provided.

The reciprocating drive mechanism 11 is composed of a pair of fluid pressure cylinders 13, 13 attached to a fixed portion 12. The mounting wall 10 of the second member 3 is attached to the rod tip of the cylinder 13, and the side wall 9 of the second member 3 is driven by driving the cylinder 13.
Moves toward and away from the side wall 5 of the first member 2. In addition, when the second member 3 is reciprocally driven, the second member 3 is moved to the first member 2.
Are configured to not collide.

The controller 13 drives the cylinder 13 only when the elastic ring 1 being conveyed on the conveying path K is clogged, and not when the elastic ring 1 is normally conveyed without being clogged. Controlled by.

Specifically, the sensor 16 detects whether or not the elastic ring 1 has been delivered to the discharge portion 15 at the tip of the transport path K, and when the elastic ring 1 has not been delivered,
The cylinder 13 is driven to reciprocate the second member 3 by a predetermined stroke from once to multiple times.

When the cylinder 13 is not driven, the second member 3 is positioned so that the elastic ring 1 which is not deformed and has a circular shape as a whole can pass through the conveying path K with a predetermined gap. Maintained.

Therefore, the elastic ring 1 having a circular overall shape
.., the elastic rings 1 are transported without being clogged in the transport path K, and are sequentially sent to the discharge unit 15.

However, as shown in FIGS. 3 and 4, when the elastic ring 1 is entirely deformed into a non-circular shape such as an ellipse as shown in the drawing, the outer diameter of the elastic ring 1 is increased during transportation. The part that swells in the direction hits the guide inner side surfaces 5a and 9a of the transport path K (in the reciprocating drive stopped state shown by the solid line) and becomes clogged.

Then, since the elastic ring 1 is not delivered to the discharging portion 15 (see FIG. 1), the second member 3 reciprocates a predetermined number of times (as shown by the phantom line), and the inner guide surface 9a of the side wall 9a. Then, the portion of the elastic ring 1 that bulges in the outer diameter direction is pressed toward the inner guide surface 5a side of the side wall 5 and deformed in the inner diameter direction, so that the elastic ring 1 is deformed so that it can pass through the conveyance path K. Correct automatically.

At this time, since the elastic ring 1 is warped by the sliding contact wall portion 4 of the first member 2 and the cover wall 8 of the second member 3, the elastic ring 1 is surely corrected.

When the second member 3 reciprocates a predetermined number of times, the cylinder 13 automatically stops and the second member 3 is restored to the predetermined position shown by the solid line. As a result, the clogging of the elastic ring 1 is cleared and the conveyance is restarted.

The reciprocating drive mechanism 11 is a cylinder.
The reciprocating drive mechanism 11 may be composed of various devices other than 13, for example, a motor and a rack and pinion. The present invention is also applicable to elastic rings 1 such as various packings and oil seals other than O-rings. Further, in this embodiment, by combining with the sensor 16,
The case where the reciprocating drive mechanism 11 is driven only when the elastic ring 1 during conveyance is clogged has been exemplified.
Is used, that is, the mechanism 11 is regularly used regardless of clogging.
May be configured to be driven.

[0025]

Since the present invention is constructed as described above, it has the following great effects.

Even if the elastic ring 1 which is deformed into a non-circular shape is mixed during the transportation of the elastic rings 1 and is jammed in the transportation path K, the deformation of the elastic ring 1 is corrected and the jam is released. Therefore, the elastic ring 1 can be smoothly supplied to various machines without stopping. Further, the present invention has a small number of parts and has a simple structure, and therefore can be easily manufactured.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a front view.

FIG. 3 is an operation explanatory view.

FIG. 4 is an operation explanatory view.

FIG. 5 is a front view of a main part of a conventional example.

FIG. 6 is a plan view of a main part of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Elastic ring 2 1st member 3 2nd member 5a Guide inner side surface 6 Vibrator 9a Guide inner side surface 11 Reciprocating drive mechanism T interval K Transport path

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazumasa Nishida 663 Minoshima, Arita-shi, Wakayama Mitsubishi Cable Industries Co., Ltd., Minoshima Works

Claims (1)

[Claims] 1. A first member and a second member having mutually parallel inner guide surfaces that come into contact with or approach the outer periphery of the elastic ring on the opposite side of 180 °, and the first member has the elastic ring. In addition to being equipped with a vibration exciter for applying feed vibration to the
A straight advance feeder for an elastic ring, wherein the second member is provided with a reciprocating drive mechanism for clearing clogging that reciprocally drives in a direction of increasing or decreasing a distance between conveyance paths formed by a pair of guide inner side surfaces.