JP2000128340A - Automatic feeder for columnar part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve an adaptive range of a part and feeding efficiency and to optimize part feeding by an automatic feeder of the columnar part. SOLUTION: A plurality of part receiving plates 12 are arranged in parallel with constant intervals in the peripheral direction on an inner peripheral surface 4c of a rotating drum 4 axially supported on a fixed frame 1 and formed so as to rotationally carry columnar parts 13 to be input to the inside of the rotating drum 4. A part guide 17 a front surface of which is roghly a V shape is arranged at a position where the parts 13 drop from on the part receiving plates 12 in the rotating drum 4 by inclining and lowering it in the axial direction and outside from the inside of the rotating drum 4. A guide pipe 18 an inside diameter of which corresponds to a diameter of the part 13 is constituted by inclining, lowering and extending it outside free to exchange.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic parting machine for supplying cylindrical machine parts and needle rollers of roller bearings, knock pins and other cylindrical machine parts one by one to a polishing machine or the like in a predetermined direction. It relates to a feeding device.

[0002]

2. Description of the Related Art Parts feeders and the like are conventionally known as automatic feeders for cylindrical parts. As shown in FIG. 7, the parts feeder or the like has a spiral-shaped conveying path b formed in the inner peripheral surface of a bowl-shaped main body a, and a rotary disk c and a cylindrical part d at the bottom of the main body a. Each is provided with a leveling plate e.

According to the above-mentioned parts feeder, a large number of cylindrical parts are put in a main body a and a rotating disk c is rotated in the direction of the arrow f shown in the figure while vibrating. d is laid down horizontally (diametrically) by the leveling plate e, and is leveled on the upper surface of the bottom plate a 'of the main body a. The smoothed cylindrical parts d... Are guided to the spiral transport path b by the vibration of the main body a and the rotation of the rotary disk c, and are transported one by one along the transport path b. (Not shown).

[0004]

However, the above-mentioned parts feeder is of a conveying type by vibration, and is formed of a cylindrical part d.
.., The parts d... Rotate in the case of a part having a short length, and are conveyed obliquely and laterally with respect to the axis g, as shown in FIG. As a result, it is difficult to supply a polishing machine or the like accurately in a predetermined direction.

Further, since the parts feeder employs a press-and-hold transfer system, that is, a system in which the parts are horizontally pushed with their end faces in the axial direction (length direction) facing each other, a thin part having a small diameter ( (Not shown) and as shown in FIG. 8 (C), the parts d... Having an arcuate end face are displaced in the lateral direction with respect to the axis g. It cannot be supplied.

That is, according to the conventional parts feeder, unless the part has a diameter and a length equal to or more than a predetermined dimension and has a flat end face, as shown in FIG. In addition, it is difficult to carry out alignment conveyance in a predetermined direction.

As described above, the conventional parts feeder has a problem that the applicable range is extremely limited because the applicable range of the parts is very narrow.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has a wide application range of parts to be conveyed. It is an object of the present invention to provide an automatic feeder for a columnar part which can be supplied reliably and efficiently.

[0009]

In order to achieve the above object, an automatic feeder for columnar parts according to the present invention is provided on an inner peripheral surface of a rotating drum rotatably supported in a circumferential direction on a fixed frame. A plurality of component receiving plates that convey a cylindrical component to be introduced into the rotary drum in the circumferential direction are provided in parallel with each other in the axial direction at regular intervals in the circumferential direction, and each component is rotated by rotation of the rotary drum. At the position where the cylindrical part rotated and conveyed by the receiving plate falls from the receiving plate, a component guide having a component conveying guide pipe replaceably provided is moved in the axial direction of the rotary drum from the inside of the rotary drum to the outside. It is characterized in that it is arranged to be inclined downward.

[0010]

A large number of cylindrical parts are supplied by a bucket conveyor to a hopper fixed to a fixed frame, and are fed from the hopper into an upper portion of a rotary drum. Since the rotating drum is rotated at a constant speed in the circumferential direction, the inserted cylindrical component naturally falls on the lower portion of the inner peripheral surface of the rotating drum.

The columnar component that has fallen by being thrown into the rotating drum is rotated upward by the component receiving plate by rotating a plurality of component receiving plates projecting from the inner surface of the rotating drum upward in the circumferential direction. It will be transported.

[0012] When the columnar component is rotated and conveyed to a predetermined height, and the component receiving plate reaches a position where it is inclined downward,
The cylindrical component rolls on the component receiving plate and falls into the component guide, but since the orientation of the component guide is the same as that of the component receiving plate, the cylindrical component falls in a predetermined direction with respect to the component guide. Is slid in the guide pipe in the axial direction and supplied to a polishing machine or the like in a predetermined direction.

When the input amount of the columnar parts into the rotary drum increases and the parts overlap each other, the operating lever contacts the overlapped parts and is rotated, and the limit switch is actuated. The drive source of the electrically connected bucket conveyor is stopped, and the columnar component is not put into the rotating drum.

When the columnar components in the rotary drum are sequentially supplied to the polishing machine or the like as described above, the operation lever returns to the original position when the column returns to a predetermined amount. As a result, the drive source is started, and the cylindrical conveyor is again charged with the cylindrical components by the bucket conveyor.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. 1 shows a longitudinal sectional view of the present invention, FIG. 2 shows a transverse sectional view taken along line AA 'in FIG. 1, and FIG. 3 shows a front view of the same. As shown in FIG.
The fixed frame 1 is formed in a horizontal cylindrical shape with an opening at the front end, and is fixed to a main pillar 2 erected on a base (not shown) via a fixed block 3.

A rotary drum 4 is rotatably supported in the circumferential direction so as to be rotatably supported in a horizontal direction. That is,
The rotating drum 4 is provided with a support shaft 5 having one end fixed to the center of the flat plate 4a and extending rearward, and
The bearing 6 fixed to the center of the back plate 1a and the bearing 7 fixed to the fixed block 3 are penetrated and supported so that the fixed frame 1 is rotatably supported on the fixed frame 1.

The support shaft 5 is operatively connected to a shaft 8a of a motor 8 fixed to a base (not shown) by a wrapping transmission mechanism 9 such as a belt or chain. It is rotated at a predetermined speed in a fixed direction indicated by an arrow h in FIG.

As shown in FIGS. 1 and 3, the front end opening of the fixed frame 1 has a front plate 1 on its outward flange 1b.
0 is detachably fixed and closed by a plurality of bolts / nuts 11.

The inner peripheral surface 4c of the peripheral wall 4b of the rotary drum 4
As shown in FIGS. 1 and 2, a plurality of (18 in this embodiment) component receiving plates 12 having a predetermined width are provided.
It is long in the axial direction of the rotary drum 4 at a constant interval i in the circumferential direction, and is juxtaposed so as to protrude in the center direction of the rotary drum 4.

As shown in FIG. 2, each of the component receiving plates 12 is a cylindrical component 13 inserted into the rotary drum 4.
.. Function to be conveyed upward one by one.

The front end of the rotary drum 4 is
The inward flange 14 as shown in FIG.
Are provided so as to protrude slightly inward from the rotary drum 4, whereby an opening 15 is formed at the front end of the rotary drum 4 with the inner peripheral edge of the flange 14 as an opening edge. , A short tube portion 10a protruding from the back surface of the front plate 10 in the fixed frame 1 is inserted.

A hopper 16 is fixed to the upper portion of the front surface of the front plate 10 in the fixed frame 1, and the columnar parts 13 are fed into the rotary drum 4 from the hopper 16.

A component guide 17 is disposed in the rotary drum 4 so as to penetrate through the front plate 10 and be inclined downward from the rotary drum 4 to the outside. This part guide 1
7, a component 17a located in the rotary drum 4 is formed in a substantially V-shaped front as shown in FIG.
A portion 17b projecting outward from the bottom is formed in a substantially U-shaped front, and as shown in FIG.
8a, the guide pipe 18 formed in
The base end is fitted and mounted so that it can be exchanged with the one whose inner diameter corresponds to the diameter of, and it is inclined downward to the outside and extended.

An operating plate 1 is provided at a lower portion in the rotary drum 4.
9 is suspended substantially vertically by fixing the upper end to a rotating shaft 20 which is horizontally supported through the front plate 10 of the fixed frame 1. The operation plate 19 is indicated by a solid line in FIG. The front plate 10 is fixed to the rotating shaft 20 so as to be rotated via the rotating shaft 20 by being rotated through the rotating shaft 20 by a predetermined angle from the vertical position shown to the position shown by the two-dot chain line in FIG. An operating piece 21 is provided on the front surface as shown in FIG.
A limit switch 22 is provided on the front surface of the front plate 10 so that the operation piece 21 rotates and comes into contact.

The limit switch 22 is connected to a motor 27 as a driving source of the bucket conveyor 23 shown in FIG.
4, when the operating piece 21 contacts the limit switch 22, the power to the motor 27 is cut off and the bucket conveyor 23 stops, and the operating piece 21 separates from the limit switch 22. When,
The motor 27 is energized to rotate the bucket conveyor 23.

As shown in FIG. 1, the operating plate 19 is formed in a substantially T-shape with its front face reversed, and its lower end 19a, which is long in the front-rear direction (axial direction of the rotating drum), is shown in FIG. The operating plate 19 is rotated by abutting on the upper part 13a of the overlapping cylindrical parts 13, 13a as described above, so that the operating piece 21 comes into contact with the limit switch 22. As a result, the cylindrical parts 13 are fed into the rotary drum 4 from the bucket conveyor 23 via the hopper 16. The input amount is controlled, and an appropriate amount of the cylindrical parts 13... Is always supplied into the rotating drum 4.

Further, inside the rotary drum 4, a substantially reverse U-shaped cover 25 is provided with the operation plate 19 and the rotary shaft 2.
0 is disposed so as to cover the upper part of the rotary drum 4, thereby preventing the cylindrical parts 13... The malfunction of the operation plate 19 is prevented. Cover 25
Are fixed to the back surface of the front plate 10 of the fixed frame 1 by screws or the like.

The lower end of the bucket conveyor 23 is disposed in a storage container (not shown) for the cylindrical parts 13.
The cylindrical part 13 is conveyed upward by a predetermined amount from the storage container by each bucket 23a.
To the hopper 16.

FIGS. 5 and 6 show examples of the polishing machine. FIG. 5 shows a plan view thereof, and FIG. 6 shows a side view thereof. FIG.
In FIG. 6, reference numeral 28 denotes a control grindstone, reference numeral 29 denotes a polishing grindstone, and reference numeral 30 denotes a pedestal for the columnar component 13 disposed below the grindstones 28 and 29.

As shown in FIG. 5, on the side between the control grindstone 28 and the polishing grindstone 29, there is provided a pipe support table 31 which is divided into right and left (up and down in the figure). The tip portion 18b of the guide pipe 18 described above
Are supplied and supplied between the grinding wheels 28 and 29 from the guide pipe 18. Further, the pipe support base 31 is movable in the directions indicated by arrows j and k so as to be compatible with the guide pipes 18 having different diameters.

In the present embodiment, the applicable range of the columnar part 13 is set to a diameter of about 0.5 to 10 mm and a length of about 1 to 50 mm. However, it is needless to say that the present invention can be applied to a wide range without being limited to this.

[0032]

As described above, the present invention is constructed as described above.
A guide having an inner diameter corresponding to the diameter of the columnar part, after being rotated and conveyed to a predetermined height on the inner peripheral surface of the rotary drum by the respective part receiving plates arranged in the axial direction, and then dropped into a part guide. Since it is transported one by one in the axial direction (length direction) through the pipe, large diameter and long parts are of course
Small-diameter parts, short-length parts, parts whose end faces are arc-shaped, etc. can be transported in a predetermined direction regardless of their length, diameter, and end face shape. Can be supplied properly.

In addition, since the rotary guide and the component receiving plate are rotated and conveyed by the rotation of the rotary drum and the component receiving plate with respect to the component guide, the component transfer efficiency is higher than that of the conventional vibration type, and the shape of the component is higher. The transfer efficiency of parts can be easily and freely controlled by changing the rotation speed of the rotary drum and the interval between the part receiving plates.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an automatic feeder for a columnar part according to the present invention.

FIG. 2 is a cross-sectional view taken along line AA 'in FIG.

FIG. 3 is a front view of the same.

FIG. 4 is a side view showing the guide pipe in the above.

FIG. 5 is a plan view showing an example of a polishing machine.

FIG. 6 is a side view showing the polishing machine.

FIG. 7 is a plan view showing a conventional automatic feeder for cylindrical parts.

FIG. 8 is an operation explanatory view of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixed frame 4 Rotary drum 4c Inner peripheral surface 12 Component receiving plate 13 Columnar component 17 Component guide 18 Guide pipe

Claims (1)

[Claims] A plurality of component receiving plates for circumferentially transporting cylindrical components to be loaded into the rotating drum are provided on an inner peripheral surface of a rotating drum rotatably supported in a circumferential direction on a fixed frame. Projecting in parallel in the axial direction at a constant interval in the direction, and the component transport guide is positioned at a position where a cylindrical component rotatably transported by each component receiving plate falls from the receiving plate by the rotation of the rotary drum. An automatic feeder for a columnar part, wherein a part guide having a replaceable pipe is inclined downward from the inside of the rotary drum to the outside in the axial direction of the rotary drum.