JPH06271047A - Ring supply device - Google Patents

Abstract

PURPOSE:To automate takeoff work for O-rings stocked in a hopper, and improve the working efficiency by using an eccentric bar for off-taking the rings which is eccentrically rotatable. CONSTITUTION:A device is provided with a hopper part 1 having a hopper 10 capable of stocking O-rings A, a takeoff part 3 having an eccentric bar 30 for off-taking the ring A which is eccentrically rotatable, and a regulation and supply part 5 having a regulation plate 50 for regulating the rings A. The eccentric bar 30 is set to be inverted from a down-directed attitude to be lateral, and the takeoff part 3 is composed to be vertically movable, and to be movable from the hopper part 1 to the regulation and supply part 5, so the O-ring A held by the eccentric bar 30 by centrifugal force is regulated by the regulation and supply part 5 to be dropped down to be transferred to a subsequent process.

Description

Detailed Description of the Invention

[0001]

[Industrial applications]

The present invention relates to a ring supply device, and more particularly, to a ring supply device which takes out and supplies ring-shaped articles such as O-rings one by one.

[0003]

[Prior art]

For example, when attaching an O-ring having a diameter of about 12 mm to an oil damper of a small plastic molded product, the O-rings are taken out one by one from the stock of the O-ring, and the taken O-rings are molded products. Need to be incorporated into.

Conventionally, the work for taking out the O-ring has been mainly performed manually.

[0006]

[Problems to be Solved by the Invention]

However, there is a limit to the work efficiency of the work of manually removing the O-ring.

It should be noted that the work of taking out an O-ring or the like having a diameter of about 12 mm is difficult to automate because it is a small one to handle, and there has been no O-ring supply device in the past.

Therefore, there has been a demand for a means for automating the operation of taking out the ring and improving the work efficiency.

[0010]

[Means for Solving the Problems]

Means for solving the problems of the present invention are as follows.

Firstly, a hopper part having a hopper capable of stocking rings, an eccentric bar for eccentrically rotatable ring taking out, and an aligning supply part having an aligning plate for ring alignment are provided, The eccentric bar of the take-out part can be reversed from the downward direction to the horizontal direction, and the take-out part can be moved vertically and from the hopper part to the aligning supply part, which is held by the eccentric bar by centrifugal force. The ring supply device is characterized in that the ring is regulated by the alignment supply unit and dropped to be transferred to the next step.

Secondly, the hopper is configured to be rotatable,
It is the ring supply device according to the first aspect.

[0014]

[Action]

According to the present invention, as the initial state, the take-out portion is positioned above the hopper portion with the eccentric bar facing downward.

In the rotatable hopper, the hopper is rotating.

Then, in a state where the eccentric bar of the take-out section is eccentrically rotating, the take-out section is lowered, and the eccentric bar of the take-out section is inserted into a plurality of O-rings stocked in the hopper of the hopper section.

Insert the eccentric bar into a plurality of O-rings,
With the O-ring held by the eccentric bar by centrifugal force, the position of the eccentric bar is reversed from the downward direction to the lateral direction, and a plurality of O-rings are taken out from the hopper.

After reversing, after raising the take-out portion, the take-out portion is moved from above the hopper portion to above the aligning and feeding portion.

Above the aligning and feeding section, the position of the eccentric bar is reversed from the lateral direction to the downward direction, and then the eccentric bar is lowered while holding the O-ring by centrifugal force.

In the aligning and supplying section, with the plurality of O-rings inserted in the eccentric bar, the positions of the O-rings are aligned by stacking vertically by the aligning plate, and the O-rings held by centrifugal force are arranged. By regulating by the alignment supply unit, the O-rings on the lower end side are sequentially taken out and supplied.

When the taking out of the O-ring inserted into the eccentric bar is completed, the taking-out portion returns to the initial state and the above-mentioned operation is repeated.

[0023]

【Example】

An embodiment of the O-ring supply device of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view of an embodiment of the O-ring supply device of the present invention, FIG. 2 is a plan view of an embodiment of the O-ring supply device of the present invention, and FIG. 3 is a side view of an eccentric bar.

The O-ring supply device of this embodiment has a large number of O-rings.
A hopper unit 1 having a hopper 10 capable of stocking a ring A (shown in a stocked state in FIG. 1), and a take-out unit 3 having an eccentric rotatable eccentric bar 30 for taking out a ring.
And an alignment supply unit 5 having an alignment plate 50 for ring alignment.

The hopper 10 of the hopper unit 1 is rotated once in 30 to 60 seconds by the motor 11 attached to the pedestal 6.

As the hopper 10 rotates, the insertion position of the eccentric bar 30 into the hopper 10 does not reach a specific position but contacts a plurality of positions.

The hopper 10 is a cylindrical member having an upper end opening, and the inner bottom 10a prevents the O-ring A from falling off or scattering when the eccentric bar 30 is inverted from vertically downward to horizontal sideways. In conformity with the movement of the tip of the eccentric bar 30, the eccentric bar 30 is formed so as to gradually become shallower from the outer peripheral side toward the center.

Although not shown, a cover may be attached to the hopper 10 on each side surface or upper portion on which the eccentric bar 30 operates so that the O-ring A is not scattered by the eccentric bar 30.

As shown in FIG. 3, the eccentric bar 30 of the take-out portion 3 is located at a position eccentric to the central axis of rotation of the bar 30a.
And the operating outer diameter of the bar 30a is O due to the motor 32 attached via the bracket 31.
Rotate so as to draw a circle about the inner diameter of ring A.

The bracket 31 has a reversing fulcrum P, and the tilted air cylinder 34 connected through the rod end 33 expands and contracts, so that the reversing fulcrum P serves as a fulcrum to move the position of the eccentric bar 30 from vertically downward to horizontal. Flip 90 degrees horizontally or vertically from horizontal to horizontal.

Further, a vertical air cylinder 36 in a vertical state and a slide bush 38 fitted to a vertical slide rail 37 in a vertical state are attached to the bracket 31 of the take-out portion 3 via a cylinder joint 35, so that the vertical air cylinder 36 can expand and contract. Thus, the take-out section 3 can be moved up and down.

Further, the bracket 31 of the take-out portion 3 is provided with
The slide bush 40 is attached to the horizontal slide rail 39 in the horizontal state, and the horizontal slide rail 39 is attached.
The horizontal air cylinder 41 arranged in the horizontal direction allows the take-out portion 3 to move in the horizontal direction.

The horizontal air cylinder 41 and the horizontal slide rail 39 have a length extending from above the hopper unit 1 to above the aligning and supplying unit 5, and are mounted on a mounting bracket 42 which is arranged at intervals in the longitudinal direction of the gantry 6. Has been.

The aligning / supplying section 5 comprises ring aligning plates 50 arranged in three directions, which are movable back and forth by an air cylinder 52 attached to the pedestal 6 via brackets 51.

The aligning and supplying section 5 has a slide table 54 which can be moved left and right by an air cylinder 53 with a guide which is attached in the width direction of the pedestal 6.

Grooves 54a for taking in one O-ring A are formed in two places on the left and right of the surface of the slide table 54, and the grooves 54a are shown in plan view in FIG.
As shown in the AA sectional view of (a) in (b), a large number of small holes 54b for applying a vacuum pressure are formed.

The alignment plate 50 is centered on the groove 54a,
Each of the three directions forms an angle of 120 degrees and is arranged so as to slightly contact the outer circumference of the O-ring A in the forward position.

Further, the lower end side of each aligning plate 50 is arranged so as not to form a gap through which the O-ring A can pass between the surfaces of the slide table 54.

Next, the operation of the ring supply device will be described with reference to the operation explanatory view of FIG.

First, the stock of the O-ring A is randomly placed in the hopper 10 which rotates at a low speed by the motor 11, and as a initial state, the take-out portion 3 is placed above the hopper portion 1 with the eccentric bar 30 vertically downward. Located in.

Then, as shown in FIG. 5A, while the eccentric bar 30 of the take-out portion 3 is being eccentrically rotated by the motor 32, the take-out portion 3 is lowered by the vertical air cylinder 36, and the take-out portion 3 is moved downward. The eccentric bar 30 has a plurality of O-rings A that are stocked in the hopper 10 of the hopper unit 1.
Plug in.

Then, as shown in FIG. 5B, with the eccentric bar 30 inserted in the plurality of O-rings A, the position of the eccentric bar 30 is reversed from vertically downward to horizontal lateral by the inclined air cylinder 34. By the reversing operation, the rotating operation of the hopper 10, and the centrifugal force of the eccentric rotation of the eccentric bar 30, a plurality of O-rings A are taken out from the hopper 10 so as to be hooked on the eccentric bar 30.

After that, when the eccentric bar 30 is hooked with a certain amount of the O-ring A by repeating the reversing operation including the operation of reversing the horizontally lateral eccentric bar 30 vertically downward again, the eccentric bar 30 is horizontally laterally oriented. In this state, the take-out portion 3 is raised by the vertical air cylinder 36, and the motor 32 is once stopped.

After raising the take-out section 3, the take-out section 3 is
The horizontal air cylinder 41 is moved from above the hopper unit 1 to above the alignment supply unit 5.

As shown in FIG. 5C, above the aligning and supplying section 5, the eccentric bar 30 is rotated again by the motor 32, and then the eccentric bar 30 is tilted as shown in FIG. 5D. The air cylinder 34 reverses the horizontal direction to the vertical downward direction, and then the vertical air cylinder 36 lowers it.

At this time, in order to prevent the O-ring A from spilling out with the eccentric bar 30 facing downward, the motor 3
The rotation speed of 2 is determined in consideration of the outer diameter, the wire diameter, the weight, etc. of the O-ring A so that a sufficient centrifugal force can be obtained.

For example, the O-ring has an outer diameter of 12 m.
In the case of m and wire diameter of 0.6 mm, 300 rpm or more is required, and it is preferable to carry out at about 1000 rpm.

In the aligning and supplying section 5, the rotating eccentric bar 30 is used.
With multiple O-rings A inserted irregularly in
Since the aligning plate 50 moving forward by the air cylinder 52 approaches from three directions and regulates the position of the O-ring A, centrifugal force does not act on the O-ring A rotating by the eccentric bar 30, and the aligning plate 50 and the eccentric bar 30 move inside and outside. As shown in FIG. 5 (e), the resistance of the irregular O-ring A
Are arranged in a cylinder as if they were stacked one above the other.

Then, as shown in FIG. 5 (f), every time the slide table 54 slides left and right, the slide table 54 is housed in the groove 54a of the slide table 54 from the lower end side O ring A and sucked by the vacuum pressure in order. Taken out,
It is supplied to the next process.

Although not shown, the change (increase) in the vacuum pressure due to the adsorption of the O-ring A is detected by the pressure switch.

Then, the signal from the pressure switch operates the air cylinder 53 with the guide, and the slide table 5
Slide left and right of 4.

When the vacuum pressure does not change for a certain period of time, it is determined that the O-ring A inserted into the eccentric bar 30 has been completely taken out, the take-out section 3 returns to the initial state, and the above-mentioned operation is performed. repeat.

Although not shown, an eccentric bar 3 for taking out the eccentric bar 3 is provided in addition to the eccentric bar 30 for taking out the O-ring, and an eccentric bar dedicated for alignment to be inserted into the aligned O-ring is provided.
0 on the slide table 54, insert an eccentric bar exclusively for alignment instead, and take out the O-ring by the eccentric bar exclusively for alignment.
It is also possible to take out the O-ring A from the hopper 10 according to 0.

The O-ring A taken out by the slide table 54 is shown in a side view in FIG. 6 and a plan view in FIG.
The slide table 54 can be attached by the O-ring suction attachment portion 7.
It is also possible to take out the groove 54a from the groove 54a and continuously install the O-ring A into the work as shown in the operation explanatory view of FIG.

The O-ring suction mount 7 is mounted on the mount 71.
A rodless air cylinder 72 is attached between the rodless air cylinder 72 and a vertical movement air cylinder 74, a vertical movement rail 75, and a vertical movement slide bush 76 are attached to the rodless air cylinder 72 via an L-shaped bracket 73. Vacuum attachment 7 connected to
Have eight.

The vacuum attachment 78 is shown in FIG.
As shown in FIGS. 8A and 8B, the slide table 5
The O-ring A of the groove 54a of No. 4 is taken out by vacuum pressure,
The O-ring A thus taken out is set on a work as shown in FIGS. 8 (c) and 8 (d).

It is also possible to store a liquid containing components such as oil and grease in the hopper 10 and stock the O-ring A in the liquid.

In this case, by taking out the O-ring A from the hopper 10, it means that the work of applying oil, grease or the like to the O-ring A was also performed.

Therefore, there is no need to apply oil, grease, etc. in the subsequent process, and the amount of oil, grease, etc. applied to the O-ring A is constant, and the oil and grease are applied to the entire O-ring A. Etc. are evenly applied.

[0062]

【The invention's effect】

According to the ring supply device of the present invention, the ring stocked in the hopper is taken out by the eccentric bar for taking out the ring which can be eccentrically rotated. Therefore, the work of taking out the ring can be automated and the working efficiency can be improved. .

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of an O-ring supply device of the present invention.

FIG. 2 is a plan view of an embodiment of the O-ring supply device of the present invention.

FIG. 3 is a side view of an eccentric bar.

4A and 4B are partial views of a slide table, FIG. 4A is a plan view, and FIG. 4B is a sectional view taken along line AA of FIG.

FIG. 5 is an operation explanatory view of the ring supply device of the present invention.

FIG. 6 is a side view of an O-ring suction attachment portion.

FIG. 7 is a plan view of an O-ring suction attachment portion.

FIG. 8 is an operation explanatory view of an O-ring suction attachment portion.

[Explanation of symbols]

 A O-ring P Inversion fulcrum 1 Hopper part 3 Ejection part 5 Alignment supply part 6 Stand 7 O-ring adsorption attachment part 10 Hopper 10a Bottom 11 Motor 30 Eccentric bar 30a Bar 31 Bracket 32 Motor 33 Rod end 34 Inclined air cylinder 35 Cylinder joint 36 Vertical Air Cylinder 37 Vertical Slide Rail 38 Slide Bushing 39 Horizontal Slide Rail 40 Slide Bushing 41 Horizontal Air Cylinder 42 Mounting Bracket 50 Alignment Plate 51 Bracket 52 Air Cylinder 53 Guided Air Cylinder 54 Slide Table 54a Groove 54b Small Hole 71 Mounting Base 72 Rodless Air Cylinder 73 L Mold bracket 74 Vertical movement air cylinder 75 Vertical movement rail 76 Vertical movement slide bush 77 Vacuum hose 78 Vacuum a Tchimento

Claims (2)

[Claims] 1. A hopper part having a hopper capable of stocking rings, an eccentric bar for eccentrically rotating ring eccentric bar for taking out a ring, and an alignment supply part having an alignment plate for ring alignment, the unloading part. The eccentric bar can be inverted from the bottom to the side, the take-out part can be moved up and down, and the hopper part can be moved to the aligning and feeding part. A ring supply device characterized in that it is dropped downward by being regulated by an alignment supply unit and transferred to the next step. 2. The ring feeding device according to claim 1, wherein the hopper is configured to be rotatable.