JP2593311Y2 - Annular component feeder - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention comprises an annular component having an opening, for example, a hopper rod which holds a large number of retaining rings in a penetrated and laminated state, and sequentially supplies the retaining rings held by the hopper rods to an assembling apparatus. For supplying an annular component for use.

[0002]

2. Description of the Related Art Retaining rings used for the purpose of preventing displacement of mechanical parts and the like are assembled in grooves provided in shafts and holes of the mechanical parts by an appropriate assembling device. In order to automatically supply a retaining ring to such an assembling device, a supplying device (1) as shown in FIG. 2 has been conventionally used.

This feeder (1) is a cylindrical weight having a hopper rod (3) holding a large number of retaining rings (2) penetrated and laminated, a small-diameter portion (4a) and a large-diameter portion (4b). (4) It is composed of a cutting plate (7) having an annular groove (6) formed on the upper surface. An opening guide (8) is attached to the hopper rod (3) along the axial direction, and the opening guide (8) is engaged with the opening (9) of the retaining ring (2). The position of the opening (9) of each retaining ring (2) is aligned at a fixed position. A notch (10) is formed in the weight (4) along the axial direction, and an opening guide (8) is fitted in the notch (10).

[0004] A supply device (1) having the above-described structure will be described below.
Will be described.

[0005] A large number of retaining rings (2) held by the hopper bar (3) are pressed by the distal end of the small diameter portion (4a) of the weight (4) fitted into the hopper bar (3). As a result, the retaining ring (2) located at the lowermost end is pushed out and fits into the annular groove (6) of the cut-out plate (7) spaced apart downward.
Thereafter, the cutting plate (7) moves horizontally and the annular groove (6)
The inner retaining ring (2) is supplied to an assembling device (not shown).

[0006]

However, in the above-mentioned supply device, since the outer peripheral portion of the retaining ring held by the hopper bar is not restrained at all, the opening (9) is expanded by receiving the load from the weight, As shown in FIGS. 3A and 3B, the retaining ring (2 ') may be protruded from the row of the retaining ring (2). Since such protrusion causes the retaining rings (2) and (2 ') to be entangled with each other and hinders taking-out work by the cutting plate (7), improvement has been demanded.

To meet such a demand, FIG.
As shown in the figure, guide rods (11)
There is also a structure in which the guide rod (11) restricts the outer periphery of the retaining ring (2) to restrict the expansion of the opening (9), but a plurality of guide rods (11) are provided. There is a problem that the mechanism around the hopper bar (3) becomes large-sized and complicated because the hopper bar (3) is erected. Further, when the size of the retaining ring (2) is changed, it is necessary to change the position of the guide rod (11) in accordance with the external dimensions thereof, which is difficult to cope with.

Accordingly, an object of the present invention is to provide an annular component supply device which can prevent the protrusion of a retaining ring with a simple structure and can easily cope with a change in size thereof.

[0009]

In order to achieve the above object, according to the present invention, there is provided a hopper rod in which a number of annular parts having openings are stacked with the openings aligned, and the stacked annular parts are provided. Pressing and removing the annular component located at the end of the row, and sequentially supplying the extracted annular component to the next step, wherein the hopper rod has an opening of the annular component and
An opening guide to be engaged is provided, and the opening guide is provided.
Arc-shaped inner circumference along the outer circumference of the annular part
An outer diameter guide having a surface is provided at least at a position near the opening while straddling the opening so as to restrain the outer peripheral portion .

[0010]

The hopper bar has an outer diameter guide for restraining the outer peripheral portion of the annular component in a state of straddling the opening. This prevents the opening from expanding even when the load is applied by the weight, and prevents the annular component from protruding. By the way, in order to prevent the opening from expanding, it is sufficient to restrict the outer peripheral portion of the annular component at a position near the opening. Therefore, the outer diameter guide can be arranged only in the vicinity of the opening, thereby simplifying the peripheral structure of the hopper bar.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.

1 (a) and 1 (b) are a plan view and a partial front sectional view of an annular component supply device (1) according to the present invention. The feeder (1) includes a hopper rod (3) integrally provided with an opening guide (8) extending in the axial direction, a weight (4),
It is composed of each member of the cutting plate (7),
On the outer peripheral side surface of the opening guide (8) mounted on the hopper rod (3), the inner peripheral surface is a circle along the outer peripheral portion of the retaining ring (2).
An arcuate outer diameter guide (12) is mounted along the axial direction. The outer diameter guide (12) has an inner diameter slightly larger than the outer diameter of the retaining ring (2), and is mounted near the opening (9) so as to straddle the opening (9). The width (t) of the outer diameter guide (12) is ensured to straddle the opening (9) even if the retaining ring (2) is displaced in the circumferential direction.
Is long enough to restrain the outer periphery. In addition, weight (4)
Is provided with a notch (10) so as to sandwich the outer diameter guide (12).

With such a structure, when the stacked retaining ring (2) is pressed by the weight (4), the retaining ring (2) located at the lowermost end is lowered downward, similarly to the conventional device shown in FIG. It is pushed out and fits into the annular groove (6) of the cut-out dish (7).
On the other hand, at the time of this pressing, both ends (2a) and (2b) of the retaining ring (2) opposed to each other across the opening (9) are connected to the outer diameter guide (12).
Be bound by. This prevents the opening (9) from expanding and prevents the retaining ring (2) from protruding. Further, even if the outer diameter guide (12) is arranged only in the vicinity of the opening (9), the expansion of the opening (9) can be surely prevented. Therefore, the peripheral structure of the hopper bar (3) can be simplified. In addition, since the inner peripheral surface of the outer diameter guide (12) has an arc shape along the outer peripheral portion of the retaining ring (2), a part of the stacked retaining ring (2) is displaced in the circumferential direction to cause a phase shift. Even if it occurs, it is possible to reliably prevent the opening of the retaining ring (2) from expanding on the inner peripheral surface of the outer diameter guide (12) and prevent the retaining ring (2) from protruding. On the other hand, when the outer diameter guide has a linear cross section as in the devices of Japanese Utility Model Laid-Open Nos. 61-169581 and 61-181618, if the above-mentioned phase shift occurs, one end of the retaining ring Since the distance between the guide and the linear outer diameter guide increases, the enlargement of the opening cannot be restricted. The above-mentioned phase shift can be avoided by making the width of the opening of the retaining ring (2) and the width of the opening guide (8) substantially equal (the width in the circumferential direction). However, this cannot cope with different size retaining rings having different opening widths.
On the other hand, in the device of the present invention, since the phase shift of the retaining ring can be tolerated, the width of the opening guide (8) can be considerably smaller than the width of the opening of the retaining ring (2) as shown in FIG. Therefore, there is an advantage that it can be diverted to a retaining ring of another size without changing the mechanism.

The present invention is not limited to the case where the cross section of the retaining ring (2) is circular as shown in the figure, but is applicable to retaining rings having various cross-sectional shapes which may protrude. Further, the present invention is not limited to the retaining ring (2), and can be applied to various annular components having an opening.

[0015]

As described above, according to the present invention, the outer diameter guide reliably prevents the opening from being enlarged, so that the annular parts do not protrude, and the tangling of the annular parts can be avoided. Thereby, the work of taking out the annular component from the hopper bar can be performed smoothly. Further, since the hopper bar is provided with the outer diameter guide at a position near the opening of the annular component, the peripheral structure of the hopper bar can be relatively simplified. In addition, it is possible to easily convert the ring-shaped part to one having a different size.

[Brief description of the drawings]

FIG. 1 is a plan view and a partial front sectional view showing an embodiment of an annular component supply device according to the present invention.

FIG. 2 is a plan view and a partial front sectional view showing an example of a conventional annular component supply device.

FIGS. 3A and 3B are a plan view and a cross-sectional view as viewed from the front, showing an aspect of protrusion.

FIG. 4 is a plan view showing an example of a conventional protrusion prevention mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Annular component supply apparatus 2 Annular component (retaining ring) 3 Hopper bar 9 Opening 12 Outer diameter guide

Claims (1)

(57) [Scope of request for utility model registration] A plurality of annular parts each having an opening are provided with a hopper rod which is stacked with the openings aligned, and the stacked annular parts are pressed to remove an annular part located at an end of a row; In the one in which the removed annular parts are sequentially supplied to the next step, the hopper rod is connected to the opening of the annular parts.
A matching opening guide is provided.
On the outer diameter side, an arc-shaped inner peripheral surface along the outer peripheral portion of the annular component
Cyclic component supply device, characterized in that the outer diameter of the guide, provided in the vicinity of at least the opening in a state straddling the front <br/> Symbol opening to restrain the outer peripheral portion having a.