JPH0423853Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a multiple return feeder in which two supply troughs and two return troughs are alternately arranged in parallel.

[Conventional technology]

To explain the basic principle of the return feeder, a parts return trough extends linearly and vibrates to transport parts in a fixed direction. Further, the supply trough extends linearly in parallel with the return trough with a small gap therebetween, and vibrates so as to transport the parts in the opposite direction to the return trough.

The parts on the supply trough are transferred to the return trough at one end, and after the parts are aligned in a predetermined posture by a parts alignment section provided on the return trough, they are discharged to the subsequent process. In addition, parts that are not aligned or parts that have overflowed are returned from the return trough to the supply trough, and the parts circulate through the supply trough and return trough until they are aligned in a predetermined posture and discharged. .

Conventionally, this type of return feeder was manufactured by Tokukai Sho.
Publication No. 58-144010 (Patent Application No. 57-27144), JP
Publication No. 58-157630 (Special Application No. 57-40577), Japanese Patent Application Publication No. 57-40577
Publication No. 58-202209 (Japanese Patent Application No. 57-82774) is publicly known.

[The problem that the idea attempts to solve]

The long sides of the rectangular vibrating plate springs that elastically support the trough are arranged vertically, and a counterweight corresponding to the trough is provided to prevent vibrations from being transmitted to the support. , the height of the entire device increases. That is, it is difficult to prevent vibrations from being transmitted to the support with a simple structure.

This invention aims to provide a multiple return feeder that keeps the height of the entire device low and exhibits sufficient vibration-proofing effects.

[Means to solve the problem]

This device arranges two linearly extending supply troughs and two linearly extending return troughs alternately parallel to each other with a gap between them. A pair of front and rear supply vibration springs, which are arranged horizontally with their long sides perpendicular to the component transfer direction, and a front and rear pair of return vibration leaf springs are arranged opposite to each other in the vertical direction. The central part of the long side of each leaf spring is fixed to the base via a leaf spring mounting bracket, and the first supply vibration leaf spring,
And, the bottoms of the corresponding supply trough and return trough of each set are connected to both ends of the return vibration plate spring, and the corresponding supply trough and return trough of each set are An electromagnet and a suction core, which constitute a vibrator, are installed in opposing positions in each of the vibrators.

[Effect]

The central part of the long side of a pair of front and rear vibrating leaf springs is arranged horizontally with the long side perpendicular to the component transfer direction, and the central part of the long side is fixed to the base, and the propulsion direction is the same at both ends of the vibrating leaf spring. The bottoms of the troughs are connected, and the electromagnets and suction cores of the vibrator are placed opposite each other in each of the pair of troughs to give vibrations in opposite directions to each trough, thereby suppressing the vibrations at both ends of the vibrating leaf spring. They are offset in the center.

〔Example〕

1 and 2 are plan views showing an embodiment of the multiple return feeder of this invention.
A supply trough 1, a first return trough 2, a second supply trough 3, and a second return trough 4 are arranged in parallel with a slight gap between them. In addition, the second supply trough 3 and the second return trough 4 each constitute one set of return feeders. The first supply trough 1 and the second supply trough 3 are attached and supported to the base 6 via a pair of front and rear supply vibration plate springs 5, 5, and the first return trough 2 and the second return trough 4 is mounted and supported on the base 6 via a pair of front and rear return vibration plate springs 7, 7. Supply vibration leaf springs 5, 5 supporting the first supply trough 1 and the second supply trough 3, the first return trough 2 and the second
The return vibration leaf springs 7, 7 that support the return trough 4 are arranged with their long sides in the horizontal direction and are arranged obliquely in a direction opposite to the vertical direction. is fixedly attached to a fixing block 9 fixedly installed on the base 6 via a leaf spring fitting 8. As shown in FIGS. 3 to 6, the leaf spring mounting bracket 8 has strip-shaped support springs 11, 11 inserted and held in slits 10a, 10a formed on the upper and lower surfaces of a U-shaped frame member 10, The protruding tips of the support springs 11, 11 are connected to slits 12 formed on the upper and lower surfaces of the leaf spring mounting member 12.
a, 12a to attach and support the leaf spring mounting member 12 to the frame member 10 via the pair of upper and lower support springs 11, 11, and the leaf spring mounting member 12 and the receiving member 1
The center portion of the supply vibration plate spring 5 or the return vibration plate spring 7 is sandwiched between the frame member 10 and the frame member 10, and the frame member 10 is attached and fixed to the fixed block 9. At the bottoms of the first supply trough 1 and the second supply trough 3, two trough support blocks 14 and 15 are individually provided at the front and rear, respectively, and the trough support blocks 14 and 14 of the first supply trough 1 are The trough support blocks 15, 15 of the second supply trough 3 are coupled to one side end portions of the supply vibration plate springs 5, 5 fixedly attached to the plate spring mounting brackets 8, 8, and the trough support blocks 15, 15 of the second supply trough 3 are connected to the supply vibration plate springs 5. ,5
is connected to the other end. Furthermore, two trough supporting blocks 16 and 17 are provided at the bottoms of the first returning trough 2 and the second returning trough 4, respectively, and the trough supporting blocks 16 and 16 of the first returning trough 2 are The trough support blocks 17, 17 of the second return trough 4 are connected to one end of the return vibration plate springs 7, 7 which are fixedly attached to the return vibration plate springs 7, 8. , 7.

On the other hand, an electromagnet 18 that is intermittently excited is individually installed in the first supply trough 1 via a mounting member 19, and a suction core 20 facing the electromagnet 18 with a uniform predetermined gap is connected to the second supply trough 1. The trough support block 15 of the trough 3 is provided individually. Therefore, by intermittently exciting the electromagnet 18, the attracting iron core 20
When an intermittent suction force acts on , the first supply trough 1 and the second supply trough 3 are vibrated in opposite phases to each other due to this suction force and the repulsive elastic force of the supply vibration plate springs 5, 5. .

On the other hand, an electromagnet 21 that is intermittently excited is individually installed in the second return trough 4 via a mounting member 22, and a suction core 23 that opposes this electromagnet 21 with a uniform predetermined gap is connected to the first return trough 4. The trough support block 16 of the trough 2 is provided individually. Therefore, the electromagnet 21 is intermittently excited to attract the attracting iron core 23.
When an intermittent suction force acts on , the first return trough 2 and the second return trough 4 are in opposite phase with each other due to this suction force and the repulsive elastic force of the return vibration leaf springs 7, 7, and The first supply trough 1 and the second supply trough 3 are vibrated so as to phase the parts in opposite directions.

In addition, in the space between each trough 1, 2, 3, 4 and the base 6, there is a control mechanism 24 for controlling the amplitude of the first supply trough 1 and the second supply trough 9, and the first return trough 2 and the base 6. A control mechanism 25 for controlling the amplitude of the second return trough 4 is accommodated.

In the above configuration, the parts in the first supply trough 1 and the second supply trough 3 are sequentially transferred to the left in FIG. While being discharged from the more protruding discharge section, parts that are not discharged from this discharge section and overflow from the middle of each of the supply troughs 1 and 3 are transferred to the first return trough 2 and the second return trough 4. , the inside of these return troughs 2 and 4 is the first
In the figure, it is sequentially transferred to the right and returns to the first supply trough 1 and the second supply trough 3. The parts are then circulated between the supply troughs 1, 3 and the return troughs 2, 4 until they are discharged from the discharge portions of the supply troughs 1, 3.

By the way, according to the above-described multiple return feeder of this invention, both end portions of the supply vibration plate springs 5, 5 vibrate in the same way as the first supply trough 1 and the second supply trough 3, but both troughs vibrate. Since the vibrations of Nos. 1 and 3 are always in opposite phases, they cancel each other out at the center of the supply diaphragm leaf springs 5, 5, and both end surfaces of the return vibration leaf springs 7, 7 are 1 return trough 2 and second return trough 4
However, since the vibrations of both troughs 2 and 4 are always in opposite phases, they cancel each other out at the center of the return vibration leaf springs 7 and 7. Therefore, the first and second supply troughs 1,
3 and the first and second return troughs 2, 4 are substantially no longer transmitted to the base 6 via the leaf spring mounting bracket 8.

In addition, in the multiple return feeder of this invention,
Since the long sides of the strip-shaped leaf springs 5, 5, 7, and 7 are arranged horizontally, the height of the entire device can be reduced, making the device stable and compact. Become.

In addition, in the multiple return feeder of this invention,
Supply troughs 1 and 3 are connected to electromagnet 18 and suction core 20
Since the return troughs 2 and 4 are vibrated by the electromagnet 21 and the suction core 23, the amplitudes of the supply troughs 1 and 3 and the return troughs 2 and 4 can be adjusted independently, that is, the transfer speed can be adjusted. It is possible to change it freely.

In addition, in the multiple return feeder of this invention, 4
Two sets of book troughs, that is, two sets of return feeders, require only two sets of components such as leaf springs, electromagnets, suction cores, control mechanisms, etc., and the cost per trough is lower than conventional ones. The manufacturing cost of the entire device is low.

The above is an explanation of the embodiment of this invention.
This invention is not limited to this, and can be modified in various ways based on the technical idea of this invention. For example, the number of troughs is not limited to four as shown in the embodiment, but may be increased in increments of four as necessary. You can also do this.

[Effect of idea]

In this idea, a leaf spring is arranged with its long side oriented horizontally, and the central part of the leaf spring in the long direction is mounted and supported on a base via a leaf spring mounting bracket, and troughs are provided at both ends of the leaf spring. Since it is installed, the height of the entire device can be raised to a small level, stabilizing the support, making it possible to incorporate the control mechanism into the device, making the entire device more compact, and furthermore, reducing the cost per trough. This reduces the manufacturing cost of the device. In addition, since each pair of supply trough and return trough is vibrated in opposite phases to each other, the reaction forces are canceled out, and even if no counterweight is provided, the vibration is not transmitted to the base at all, and it does not adversely affect other troughs or equipment. Not affected.

[Brief explanation of drawings]

FIGS. 1 and 2 are plan and front views showing an embodiment of the multiple return feeder of this invention, FIGS. 3 to 6 are drawings showing details of the leaf spring mounting bracket, and FIG. 4 is a front view, FIG. 5 is a vertical side view taken along line A--A in FIG. 4, and FIG. 6 is a plan view. 1... First supply trough, 2... First return trough, 3... Second supply trough, 4... Second return trough, 5, 5... Supply plate spring, 6... Base , 7, 7... Return leaf spring, 8... Leaf spring mounting bracket, 14, 15, 16, 17... Trough support block, 18, 21... Electromagnet, 20, 23...
...Suction core, 24, 25...Control mechanism.

Claims (1)

[Scope of utility model registration request] Two linearly extending supply troughs and two linearly extending return troughs are alternately arranged in parallel with a gap between them, and adjacent supply troughs and return troughs form two sets of returns. A pair of front and rear supply vibration leaf springs, which constitute the feeder and are arranged horizontally with their long sides perpendicular to the component transfer direction, and a front and rear pair of return vibration leaf springs are arranged in opposite directions to the vertical direction. and fixing the central part of the long side of each leaf spring to the base via a leaf spring mounting bracket, and the first supply vibration leaf spring;
The bottoms of the corresponding supply trough and return trough of each set are connected to both ends of the conversion vibration leaf spring, and the bottoms of the corresponding supply trough and return trough of each set are connected to each other. , a multiple return feeder characterized in that an electromagnet constituting a vibrator and a suction core are mounted facing each other.