JPH06171739A - Vibrating parts arranging device - Google Patents

Abstract

PURPOSE:To minimize the parts returned to a vibrating part feeder because of the failure in the suspension attitude, when the part whose body is formed as head part and whose center of gravity is at the head part, such as a crystal vibrator element, is transported to the next process, in a suspended attitude by a linear vibrating feeder. CONSTITUTION:A guide track 34 which is formed in concentric form to a spiral shaped track is installed at a distance from a center axis O which is sufficiently larger than the distance to the discharge edge part 24a of the spiral track 24 from the center axis O of the bowl 23 of a vibrating part feeder 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibrating component aligning apparatus, and more particularly to an optimal vibrating component aligning apparatus applied to a small electronic component.

[0002]

2. Description of the Related Art FIGS. 7 and 8 show a conventional vibrating component aligning device. This device is a crystal oscillator (hereinafter referred to as an electronic component) as clearly shown in FIG. It is used to align m) (referred to as parts). This device is mainly composed of a vibrating parts feeder 1 and a linear vibrating feeder 2 which is arranged at the discharge end with a gap g between them. A spiral track 3 is formed, and a connecting track portion 4 is formed as an attachment at this discharge side end portion, and this is integrally fixed to the bowl 12 by a bolt. As shown in FIG. 8, the connecting track portion 4 has a track 5 that is inclined downward in the traveling direction of the component m, and a cross section that is bent and connected at a right angle at the lowermost end of the track 5. A character-shaped track 6 is formed, and the component m is configured to be transferred from the discharge end of the track 6 to the track 7 of the linear vibration feeder 2 through the above path. Although not shown in the drawing on the upstream side of the track 7, inverted V-shaped side wall portions 8a and 8b are attached, which means that the unsuspended part m passes through its inclined surface. And is configured to slide into the pocket 10 fixed to the bowl 12. Therefore, in the truck 7, as shown in the figure, only the side wall portion 8a for carrying only the suspended component m,
8b is provided, and all the parts m that have not been suspended are discharged into the pocket 10.

The vibrating component aligning apparatus of the conventional example is constructed as described above, and its operation will be described below.

The component m applied in this conventional example is a crystal oscillator, which is a very high-performance component whose resonance frequency takes a numerical value of 4 digits or 5 digits. When a large amount of such a part m is put into the bowl 12 and a known torsional vibration driving unit (not shown) is driven, the bowl 12 makes a torsional vibration around its central axis and conveys the part m along the track 3. To do. The part m is transferred from the discharge end of the truck 3 to the connecting track portion 4, which here extends in the tangential direction of the truck 3 of the bowl 12 as shown in FIG. The straight track 5 that is inclined toward the downstream side and the track 6 that extends in the right angle direction at the lowermost end thereof and that has a V-shaped cross section are provided, and the component m corresponds to the inclination of the track 5. It is quickly transferred to the truck 6. However, as shown, track 6
By changing the direction from the track 5 in the right-angled direction, the parts m largely overlap each other at this boundary portion, causing stagnation. Further, the component m is composed of the main body h and the wire-shaped electrode t attached to the main body h, but since the main body h occupies most of the specific gravity of the whole, the center of gravity is near the center of the main body h, and therefore in a recumbent posture. Stagnant. The component m is transferred to the linear vibration feeder 2 in the above state. In the linear vibrating feeder 2, a pair of strips are arranged at regular intervals, and the gap s
When the main body h of the part m is suspended, it is conveyed by linear vibration in a form as shown in FIG. 1. The part m discharged from the vibrating parts feeder 1 is the track as described above. Since the stagnation occurs at the boundary between the track 5 and the track 6, the track 7 cannot be in a suspended posture, and most of the parts m fall into the pocket 10. The dropped part m is returned to the inside of the bowl 12 through an opening 12a formed by being connected to the pocket 10 on the side wall portion of the bowl 12, and is transported to the track 3 again by the torsional vibration, and then the inlet of the linear vibrating feeder 2. However, since the above-described state is repeated between the discharge end of the vibrating part feeder 1 and the inlet of the linear vibrating feeder 2, high performance is achieved by receiving such an action many times. The required component m may be a component m having a value outside the effective range of the resonance frequency due to being subjected to friction for a long time and receiving a shock when falling due to vibration, and this is a defective product.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above problems, and even electronic parts requiring high performance are supplied one by one in a suspended posture in the next process without deteriorating their performance. It is an object of the present invention to provide a vibrating component aligning device that can be used.

[0006]

[Means for Solving the Problems] The above object is to make a bowl-shaped container having a spiral track formed on the inner peripheral wall thereof by twisting and vibrating about the central axis of the container so that parts can be moved along the track. And a linear vibrating feeder having a parts suspension track composed of a pair of strips arranged at a distance from each other in the vicinity of the parts discharge end of the vibrating parts feeder. In the vibrating component aligning device, the head of the component ejected from the vibrating component feeder is suspended by a component suspension track of the linear vibrating feeder and is conveyed by linear vibration. It is connected to the discharge side end of the spiral track of the container and is substantially concentric with the spiral track and is larger than the distance from the central axis to the discharge side end of the spiral track. Distance a guide track extending in a circular arc shape, it is achieved by the vibration component alignment apparatus being characterized in that so as to transfer the part hanging tracks of the linear vibration feeder from the discharge end.

[0007]

From the discharge side end of the spiral track formed on the inner peripheral wall of the bowl-shaped container of the vibrating parts feeder, the part is formed into a guide track extending substantially concentrically with the spiral track. Be guided. The guide track is substantially concentric with the spiral track with respect to the central axis of the bowl-shaped container, and receives the above-mentioned torsional vibration force. Therefore,
Since the amplitude in the guide track is proportional to the radius from the central axis of the bowl-shaped container, the transfer speed of the parts is higher than the transfer speed of the spiral track. Therefore, in the arc-shaped guide track, the existence density of electronic parts is significantly reduced, and overlapping and stagnation are not caused, and the parts are suspended on the parts suspension track of the linear vibration feeder with a probability of almost 100%. It That is, there are almost no parts returned to the bowl-shaped container, and there is no possibility of degrading the performance of the parts, which has been a drawback in the past.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A vibrating component aligning apparatus according to an embodiment of the present invention will be described below with reference to the drawings.

2 and 3 show the entire apparatus of this embodiment, which is mainly a vibrating parts feeder 21 and a linear vibrating feeder 22 which is connected to the discharging end with a gap g.
It consists of

A bowl-shaped container (hereinafter referred to as a bowl) 23
In the same manner as in the prior art, the inner peripheral wall surface is formed in an inverted conical shape, and a spiral track 24 is formed in this. Further, according to the present embodiment, as clearly shown in FIG. 4, a slide track 25 for single-row alignment is cut out and formed in a part of this track. All the parts m on the radially inner side pass through this and are dropped to the upstream side track 24 one step below.

Next, the driving part of the vibrating parts feeder 21 will be described. The movable core 60 is provided on the bottom wall of the bowl 23.
Is fixed, and this is a pair of leaf springs 62 that are arranged at an equal angle with the lower base block 61.
And the coil 6 is mounted on the base block 61.
The electromagnet 64 wound with 3 is fixed. This faces the movable core 60 with a gap. Further, the entire vibrating parts feeder 21 is supported on the base 56 via a vibration-proof rubber 65.

The discharge end portion 24a of the track 24 of the bowl 23 of the vibrating parts feeder 21 is connected to the guide track portion 30 formed as an arc-shaped attachment according to the present invention. The guide track portion 30 is shown in FIG.
As its shape is clearly shown in FIG. 3, a guide track 34 is concentric with the spiral track 24 in the bowl 23 having an inverted trapezoidal cross section. Radius R from center O of bowl 23 to guide track 34 of guide track portion 30
Is larger than the radius r to the uppermost track 24 in the bowl 23. Further, the guide track portion 30 is fixed to the bowl 23 by a bolt 31 at a thick portion 32 on the radially inner side thereof, and an inclined surface 35 is formed between the thick portion 32 and the guide track 34. The component m is configured to be smoothly guided from the discharge end 24a of the track 24 of the bowl 23 to the guide track 34 of the guide track portion 30. Further, in the track 24, the bowl 23 is provided at a portion corresponding to the discharge end 24a as clearly shown in FIG.
A notch 26 is formed on the side wall of the bowl so as to be thin in the radial direction. The notch 26 is inclined downward several degrees toward the outer radial direction of the bowl as shown in FIG. Therefore, the component m is configured to be stably guided to the guide track portion 30 along the cutout portion 26.

Vibration part feeder 21 according to the present invention
The above is configured as described above. Next, the details of the linear vibrating feeder 22 connected to this discharge end will be described.

The linear vibrating feeder 22 is provided with a trough 45 which is linearly bordered, and the suspension track 40 is formed on the upper end surface of the trough 45. According to this embodiment, the first track is arranged from the upstream side. It is composed of a part 41, a second track part 43 and a third track part 42, all of which are formed as parts suspension paths. The first track portion 41 is composed of strips 80a and 80b. The side wall portions of the track are formed with side wall portions 70a and 70b having a V-shaped cross section, and a component suspension path is formed in this valley portion. . In the second track portion 43 connected to this, the side wall portion is not provided, but on both sides thereof, the inverted V-shaped inclined surfaces 43a,
43b is formed, and the component m not suspended from this is dropped into a pocket 36 integrally formed in the bowl 23. Since the opening 37 is formed in the side wall of the bowl 23 so as to communicate with the pocket 32, the dropped part m is returned from the pocket 36 into the bowl 23 through the opening 37. Then the third
The track portion 42 is an aligned track, and a pair of side wall portions 42a and 42b are arranged with a gap s between them. As shown in FIG. It is transferred by linear vibration in the direction indicated by. Further, the pocket 36 is provided with a notch 44, and the suspension track 40 of the linear vibrating feeder 22 is inserted into the notch 44, so that it is configured so as not to be interfered by the torsional vibration of the vibrating parts feeder 21. ing.

Next, the drive section of the linear vibration feeder 22 will be explained. Although it is constructed in a known manner, the movable core mounting block 46 fixed to the bottom wall of the trough 45 in FIG. 2 is the base block. 50 and a pair of front and rear leaf springs 48, 49 are coupled to each other, and an electromagnet 52 wound with a coil 51 is fixed on a base block 50. This is a movable core that hangs from a movable core mounting block 46. They are opposed to each other with a gap at 47. The block 53 is supported by the base 56 integrally with the base block 50 via the height adjusting screws 57 and 58, but a pair of front and rear is provided between the block 53 and the leaf spring mounting block 59. Anti-vibration leaf springs 54, 55
, The spring constant of these leaf springs is sufficiently small.

The embodiment of the present invention is constructed as described above. Next, this operation will be described.

In FIG. 3, the parts m existing in the bowl 23 are shown only in a scattered manner, but it is assumed that the parts m are actually put in at a high density. When alternating current is applied to the coil 63, a known torsional vibration force is applied to the bowl 23. This torsional vibration is a combined movement of the reciprocating rotation about the central axis of the bowl 23 and the vertical movement, so that the component m is transferred along the track 24.
When reaching the sliding track 25 clearly shown in FIG. 4, all the parts m which are transferred in multiple rows are positioned on the radially inner side and drop onto the track 24 immediately below. As a result, as compared with the case where the component m is dropped to the bottom, the transfer length until the component m is supplied to the next process is made as small as possible, so that the time for receiving the vibration is reduced as much as possible. Further, when the component m reaches the discharge end portion 24a of the track 24, it is guided from here to the guide track 34 through the inclined surface 35 in the guide track portion 30 according to the present invention.
The radius R from the center O to the guide track 34 of 3 is sufficiently larger than the radius r from the center O to the spiral track 24, and undergoes the same torsional vibration, so that the parts on the guide track 34 are m has a greater transfer force than that on the truck 24. Therefore, even if a large number of parts m reach the discharge end 24a of the spiral track 24, they are sparsely distributed here and transferred to the linear vibration feeder 22 with an appropriate part interval.

In the linear vibrating feeder 22, since the side wall portions 70a and 70b are formed in a V shape in the first track portion 41 on the most upstream side, as clearly shown in FIG. Therefore, according to the present embodiment, the supply speed of the parts m transferred here, that is, the interval between the parts m is considerably large. Parts 70a, 70b
The head h is suspended in the suspension path consisting of and is transferred by linear vibration. Further, according to the present embodiment, a large number of parts m are formed on the first track portion 41 from the vibrating parts feeder 21 side.
Side wall 70 formed in this V-shape even when the
Since the head h of the head slides down into the suspension path along a and 70b, it is possible to smoothly interrupt in a suspended posture if the space between the components is sufficient.

Further, when the component m reaches the second track portion 43, the first track portion 4 is shown here as clearly shown in FIG.
Although the side wall portions 70a and 70b of No. 1 do not extend to this point,
Since the inclined surfaces 43a and 43b inclined downward toward the pocket 36 are formed on both sides thereof, even if the part m which is not in the suspended posture reaches here, the inclined surface 4 is formed.
It falls into the pocket 36 by 3a and 43b. Thereafter, the component m in the suspended posture can be supplied to the next process in the state where the third track portion 42 is in contact with the third track portion 42 as shown in FIG. It should be noted that the first and second track portions 41 and 43 are shown in a thin state for the sake of easy understanding of the drawing.
On the other hand, the part m that has fallen into the pocket 36 is returned to the bowl 23 again.
It is returned inside, transferred by the track 24, and transferred to the linear vibrating feeder 22.

It should be noted that since the component m can be supplied to the next process in a suspended posture from the vibration parts feeder 21 to the suspension path of the linear vibration feeder 22 in a suspended posture with almost no drop into the pocket, In a high-performance electronic component in which the performance of the component m is deteriorated by vibration, the performance can be supplied to the next process while maintaining the performance.

The embodiment of the present invention has been described above.
Of course, the present invention is not limited to this, and various modifications can be made based on the technical idea of the present invention.

For example, in the above embodiments, the crystal oscillator has been described as an electronic component, but instead of this, it can be applied to all electronic components which can easily take a suspended posture. For example, it can be applied to a capacitor.

Further, in the above embodiment, the angle range of the guide track portion 30 is set to about 90 degrees, but the angle may be set larger or smaller.

Incidentally, FIG. 1 shows a situation in which the component m is conveyed in close contact with the third track portion 42, which is an alignment track portion of the linear vibration feeder 22,
This is a case where the timing of handing to the hand of the robot in the next step, for example, is ideally performed, and naturally, if the timing required by the hand is later, from the discharge end of the third track portion 42. It will fall outside. In order to deal with this, a stopper may be provided at the end portion as is well known in the related art, and the stopper may be temporarily stopped at this point so as to stand by in a state where it is in considerable contact with the following component m.

In the above embodiment, the speed of supplying the component m from the discharge end of the vibrating part feeder 21 to the linear vibrating feeder 22 and the transfer speed of the component m of the linear vibrating feeder 22 are not particularly mentioned. The transfer speed of the linear vibrating feeder 22 is preferably higher than the supply speed from the vibrating parts feeder 21. That is, according to the present invention, in the vibrating parts feeder 21, the linear vibrating feeder 22 is already transferred from the discharge end thereof with a sufficient and substantially constant interval between the parts. If the supply speed is higher, the effect of further varying is also provided here, so that the part m that is suspended before and transferred to the front can be reliably and smoothly operated without interference. It can be suspended on this suspension truck.

[0026]

As described above, according to the vibrating component aligning apparatus of the present invention, it is possible to maintain the performance of the component requiring high performance and to supply it to the next process in a suspended posture.

[Brief description of drawings]

FIG. 1 is an enlarged perspective view of a discharge end portion of a linear vibration feeder.

FIG. 2 is a partially cutaway front view of the vibrating component aligning device.

FIG. 3 is a plan view of the device.

FIG. 4 is an enlarged perspective view of a main part of the apparatus.

5 is a cross-sectional view taken along the line [5]-[5] in FIG.

6 is a sectional view taken along the line [6]-[6] in FIG.

FIG. 7 is a plan view of a conventional vibrating component aligning device.

8 is a sectional view taken along line [8]-[8] in FIG.

[Explanation of symbols]

 30 Guide track section

Claims (1)

[Claims] 1. A vibrating parts feeder adapted to convey parts along a track by causing a bowl-shaped container having a spiral track formed on an inner peripheral wall thereof to undergo torsional vibration around its central axis. A linear vibrating feeder having a component suspension track formed of a pair of strips arranged at a distance from each other in the vicinity of the component discharge end of the vibrating part feeder, and ejecting from the vibrating part feeder. In the vibrating parts aligning device in which the head of the part to be hung is suspended by the parts suspending track of the linear vibrating feeder and conveyed by linear vibration, the discharge side end of the spiral track of the bowl-shaped container. And a guide trough that is connected to the portion and extends substantially concentrically with the spiral track at a distance greater than the distance from the central axis to the discharge side end of the spiral track. A vibrating component aligning device, characterized in that a hook is provided and the ejecting end is used to transfer the ejecting end to a component suspending track of the linear vibrating feeder.