JPS6338183Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a quantitative feeding device that continuously supplies small circular parts to a discharge chute one by one.

[Conventional technology]

In order to inspect, process, or assemble small parts as appropriate, the small parts are aligned one by one with respect to various devices,
Continuous supply has conventionally been common practice, and a parts feeder is usually used for this supply.

[Problem that the invention attempts to solve]

However, in conventional parts feeders, the configuration uses differences in the outer diameter and length of small parts to align the orientation, so the outer diameter and axial length are almost equal. In the case of circular small parts, it is extremely difficult to supply them one by one in the same orientation.

Therefore, the technical problem of this invention is to enable the supply of small circular parts as described above in the same orientation.

[Means for solving problems]

In order to solve the above problem, this invention forms a flat box-shaped cassette receptacle on the upper outer periphery of the cassette holder connected to the upper part of the discharge chute, and a storage part formed at the bottom of this receptacle. The dimension between the opposing side surfaces is approximated to the length in the axial direction of the small circular part, and the upper part of the circular storage space is opened at the lower part of the inclined bottom of the storage part, and the storage space and the above-mentioned storage space are opened below the storage space. forming a discharge path that communicates with the discharge chute, and is arranged in the storage space so that the rear portion of the upper part of the outer periphery in the rotational direction faces into the storage section;
Notches into which small circular parts can be fitted are provided at equal intervals on the outer periphery of a circular quantitative discharge plate which is rotationally driven in the direction of scooping up small circular parts in the storage part, and the above-mentioned cassette holder is raised and lowered with respect to the discharge chute. The configuration is such that it is possible to do so.

[Effect]

The quantitative supply device for circular small parts having the above configuration rotates the cassette holder relative to the ejection chute to a nearly horizontal state, and feeds a box-shaped cassette with an opening on one side of the periphery, with the opening first. Then, rotate the cassette holder in the opposite direction as above and connect it to the top of the ejection chute. It is fed to the discharge path by rotating the quantitative discharge plate, and is caused to fall and be supplied to the discharge chute.

〔Example〕

As shown in FIG. 1, the quantitative supply device according to this invention includes a discharge chute 1 and a discharge chute 1
and a cassette holder 10 placed on top of the cassette holder 10.

A bracket 2 is attached to the back of the discharge chute 1, and a pair of L-shaped arms 11 are attached to the back of the cassette holder 10.
1 is connected to the bracket 2 by a pin 3 to support the cassette holder 10 so that it can be raised and lowered,
When the cassette holder 10 is laid down, one end of the arm 11 comes into contact with the stopper 4 attached to the back of the discharge chute 1, as shown by the chain line in FIG. can be held.

Furthermore, when the cassette holder 10 is rotated and connected to the upper part of the discharge chute 1, the pin hole 5 provided in the bracket 2 and the hole 12 formed in the end of one arm 11 are aligned on the same axis. By inserting the locking pins 6 into both holes, the cassette holder 10 can be held in a state connected to the upper part of the discharge chute 1 (see FIG. 3).

The cassette holder 10 is shown in FIGS.
As shown in the figure, it has a flat plate shape, and one of its sides is an inclined side 13, and an opening 14 for a flat box-shaped cassette A is formed in this inclined side 13.

Shoulders 15 are formed on both sides of the socket 14 to restrict the amount of insertion of the cassette A.
The lower part is a storage section 16 for small parts, and the dimensions between the opposing sides of the storage section 16 are equal to that of a box-shaped cassette A.
This approximates the axial length of the small circular parts housed inside.

The side 17 and bottom 18 of this reservoir 16 are
Slanted with respect to the horizontal and vertical lines, 1 on both sides
A circular storage space 19 is connected to the intersection of 7 and 18.
A discharge passage 20 is provided below which communicates the storage space 19 with the discharge chute 1.

The storage space 19 opens at the front of the cassette holder 10, and the upper part of the outer periphery of the circular quantitative discharge plate 21 stored in the storage space 19 faces the inside of the storage section 16 from the opening. Further, the quantitative discharge plate 21 is
It is fitted on the outside of a rotating shaft 22 provided at the center of the storage space 19. As shown in FIG.
3 is inserted into a pin hole 25 formed in the quantitative discharge plate 21, and when the rotary shaft 22 rotates, the quantitative discharge plate 21 also rotates. Further, the quantitative discharge plate 21 is detachably attached by tightening a knob 26 screwed to the tip of the rotating shaft 22.

A plurality of notches 27 are formed at equal intervals on the outer periphery of the quantitative discharge plate 21. This notch 27
is U-shaped, and a pair of parallel side surfaces continuous from the arc-shaped part are inclined with respect to a straight line connecting the center of the arc-shaped part and the rotation center of the quantitative discharge plate 21.
The side surface located on the front side in the direction of rotation (the direction of the arrow in FIG. 2) is longer than the other side surface to prevent small parts from getting caught at the end of the inclined side surface 17 of the storage section 16. (See Figure 3).

The rear end of the rotating shaft 22 is connected to the cassette holder 10.
It protrudes from the back side. A drive shaft 28 intersecting this rotating shaft 22 is supported by a motor support plate 29 provided on the back surface of the cassette holder 10, and a motor 35, which supports the drive shaft 28 by the motor support plate 29,
(See FIG. 4), the rotation is transmitted to the rotating shaft 22 via the bevel gear 30.

The quantitative feeding device shown in the embodiment has the above structure, and this quantitative feeding device holds the box-shaped cassette A in the receptacle 14 with the cassette holder 10 in a horizontal state.
After inserting the cassette holder 10 and connecting it to the upper part of the ejection chute 1, the quantitative ejection plate 21 is rotated to eject the small parts from the ejection chute 1.

As shown in FIG. 4, the box-shaped cassette A is provided with rising walls 32 on three sides of the outer periphery of one side of the square bottom 31.
The outer periphery of the lid 33 is removably attached by means such as screwing, and an opening 34 is provided on one side of the outer periphery.
1 are arranged in a regular manner on the top surface.

By inserting the above-mentioned cassette A into the socket 14 of the cassette holder 10 in a horizontal state with the opening 34 first, it is possible to prevent the small parts B inside from falling when the cassette A is installed.

After mounting the cassette A in this manner, raise the cassette holder 10, insert the locking pin 6 into the communication portion between the pin hole 5 provided in the bracket 2 and the hole 12 provided at the end of the arm 11, and then attach the ejection chute 1. When the cassette holder 10 is connected to the upper part of the cassette A, the small parts B inside the cassette A naturally fall through the opening 34 and accumulate in the storage section 16. Since the dimension between both sides of the storage section 16 is similar to the length of the small component B in the axial direction, the small component B falls into the storage section 16 while maintaining the orientation as stored in the cassette A. Then, by rotating the metered discharge plate 21 in the direction of the arrow in FIG. Then, it falls through the notch 27 and is discharged from the discharge path 20 to the discharge chute 1 .

〔effect〕

As described above, according to this invention, when a large number of small circular parts are stored in a cassette with a fixed orientation, and the cassette is inserted into the socket of the cassette holder and the cassette holder is raised, the small objects inside the cassette are removed. Since the parts fall while maintaining a predetermined orientation and are stored in the storage section, the small circular objects are reliably and continuously supplied one by one with a constant orientation by rotating the quantitative discharge plate with a notch. can do.

Furthermore, since the cassette holder is placed in a horizontal position and the cassette is inserted into the receptacle, small parts inside the cassette do not fall when the cassette is installed, making it easy to install the cassette into the cassette holder. Furthermore, the rear part of the upper part of the outer periphery of the metered discharge plate placed in the storage space is located inside the storage section, and the metered discharge plate is rotated in a direction to scrape up small parts in the storage section. By rotating the plate, it is possible to apply vibration to the small circular parts in the storage section by scraping them up. Therefore, even if a clogging occurs in the reservoir due to the pressure acting between the small parts, the clogging can be cleared by the vibration. Therefore, the small parts in the lower part of the storage part fit securely into the notches of the quantitative discharge plate, and there is no clogging or jamming of the small parts, and the small parts are reliably discharged one by one into the lower discharge chute. I can put it out.

In addition, in addition to the fixed-quantity dispensing function, the fixed-quantity discharge plate also has a function for eliminating blockage, which means that there is no need to separately provide a vibration-applying mechanism for clearing, and this can have a great effect on downsizing the device. .

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the quantitative feeding device according to the invention, FIG. 2 is a longitudinal sectional front view of the same as the above,
FIG. 3 is a longitudinal sectional side view of the same as above, and FIG. 4 is a perspective view showing the state when the above cassette is installed. DESCRIPTION OF SYMBOLS 1...Discharge chute, 10...Cassette holder, 14...Socket, 16...Storage part, 18...
Bottom, 19... Storage space, 20... Discharge path, 21
...Quantitative discharge plate, 27... Notch.

Claims (1)

[Scope of utility model registration request] It consists of a discharge chute and a cassette holder connected to the upper part of the discharge chute, and a flat box-shaped cassette receptacle is formed on the upper outer periphery of the cassette holder, and a storage section is formed at the bottom of this receptacle. The dimension between opposing side surfaces of is approximated to the length in the axial direction of the small circular part, the upper part of a circular storage space is opened at the lower part of the inclined bottom of the storage part, and the storage space is below the storage space. and the discharge chute, and is arranged in the storage space so that the rear part of the upper part of the outer periphery in the rotational direction faces into the storage part, and is rotationally driven in a direction to scrape up small circular parts in the storage part. A quantitative supply device for small circular parts, wherein notches into which the small circular parts can fit are provided at regular intervals on the outer periphery of a circular quantitative discharge plate, and the cassette holder is provided to be movable up and down with respect to the discharge chute.