JP2001278438A - Vibrating part supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibrating part supply device having no possibility of damaging a part returned to the bottom of a bowl and a lower track from the middle of the track. SOLUTION: An inner peripheral surface of the bowl 4 between the spiral tracks 7 is formed as an inclined face 8 inclining downward to the inside of the bowl 4, and the part returned to the bottom 6 of the bowl 4 and the lower track 7 from the middle of the track 7 is gently slid down along this inclined face 8 so as not to damage the part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration-type component supply device using a bowl.

[0002]

2. Description of the Related Art A bowl used in a vibration-type component supply device is provided with a spiral track rising from the bottom of the bowl on an inner peripheral surface thereof, and the center of the bowl is provided by vibration generating means provided in the vibration-type component supply device. The torsional vibration is applied around the shaft, and the components put into the bowl are transported along the transport surface of the truck and supplied to the discharge end thereof.

[0003] In the middle of the spiral track, a component elimination section is often provided to adjust the amount of components to be supplied to the discharge end or to eliminate a component having a poor posture. The parts displaced in are returned to the bottom or lower track of the bowl upstream. In addition, parts protruding from the transport surface of the truck are similarly returned to the bottom of the bowl or the truck below.

As shown in FIG. 5, a conventional bowl 51 is
The inner peripheral surface 53 of the bowl 51 between the spiral tracks 52
Are vertically formed, and components removed by the component removing portion in the middle of the truck 52 and components protruding from the transport surface of the truck naturally fall to the bottom 54 of the bowl 51 and the truck 52 below.

[0005]

In the above-mentioned conventional bowl, the parts removed by the part removing part in the middle of the truck and the parts protruding from the transport surface of the truck naturally fall to the bottom of the bowl and the truck below. The parts may be damaged by the impact of the drop.

In order to reduce the above fear, it is conceivable to reduce the head between the upper and lower tracks. However, if the head between the tracks is reduced, the length of the spiral track becomes longer than necessary. There is a problem that the transfer efficiency of parts is remarkably reduced. In addition, the bowl used when supplying minute components with a component size of approximately 1 mm ³ or less, such as chip resistors and chip capacitors, is precisely cut by an NC machine or the like. If the length is long, there is also a problem that the processing cost of the bowl increases.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vibration-type component supply device which does not damage components returned to the bottom of a bowl or a lower track from the middle of a truck.

[0008]

According to the present invention, a spiral track rising from the bottom of the bowl is provided on the inner peripheral surface of the bowl to which a torsional vibration is applied around a central axis. Parts that are provided and put into the bowl,
In the vibratory component supply device that conveys along the conveying surface of the truck and supplies the discharge end thereof, an inner peripheral surface of the bowl between the spiral tracks is inclined downwardly inward of the bowl. Is adopted.

That is, by forming the inner peripheral surface of the bowl between the spiral tracks as an inclined surface which is inclined downward inward of the bowl, parts returned to the bottom of the bowl and the lower track from the middle of the track can be removed. The slide was gently slid down along the inclined surface so as not to damage the parts.

By inclining the transport surface of the truck downward to the outside of the bowl, the components to be transported on the transport surface are moved along the inner peripheral surface of the bowl on the outer peripheral side of the truck. It is possible to prevent the truck from slipping down to the inner peripheral side.

By making the width of the inner peripheral surface of the bowl between the tracks larger than the width of the transport surface of the truck, the inclination of the inclined surface can be designed gently.

The width of the transport surface of the truck is gradually reduced toward the discharge end, and the width of the transport surface near the discharge end is made substantially equal to the width of the component to be transported.
It is possible to gradually adjust the amount of the components toward the discharge end and to supply the components to the discharge end in a line without requiring a separate means for adjusting the amount of the conveyed components.

In the middle of the track, there can be provided a component elimination section for eliminating unnecessary components.

[0014] The component removing section may be a narrow portion in which the width of the transport surface is substantially equal to the width of the component to be transported.

The above-mentioned vibration-type component supply apparatus is suitable for supplying minute components whose dimensions are approximately 1 mm ³ or less.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, in this vibration type component supply device, an upper vibrating body 1 and a lower vibrating body 2 are vertically coupled by a leaf spring 3, and a bowl 4 is attached to a center of an upper surface of the upper vibrating body 1. . Although not shown, a movable iron core and an electromagnet are incorporated in the upper vibrating body 1 and the lower vibrating body 2, respectively. By connecting an AC power supply to the electromagnets, the bowl 4 is moved together with the upper vibrating body 1 and its central axis. Torsional vibration around. This vibration type component supply device supplies a micro component (chip resistor, chip capacitor, etc.) 5 having a size of approximately 1 mm ³ or less to the next step as shown in FIG.

The bowl 4 is formed by precision cutting using an NC machine, and is shown in FIGS. 3 (a) and 3 (b).
As shown in FIG. 3, a spiral track 7 rising from the bottom 6 of the bowl 4 is formed on the inner peripheral surface thereof.
It has been. The micro parts 5 put into the bowl 4 are conveyed along the conveying surface of the truck 7 and supplied to the discharge end 9 thereof. In the center of the bowl 4, a bolt hole 10 for attachment to the upper vibrating body 1 is provided.

The width of the conveying surface of the track 7 is gradually reduced toward the discharge end 9 and is formed in the vicinity of the discharge end 9 so as to be substantially equal to the width of the micro component 5. From the bottom 4 of the bowl 4 and the lower track 7 gently, and gradually adjust the amount of the transported microparts 5 so that the microparts 5 are aligned in a line and supplied to the discharge end 9. Has become. The transport surface of the truck 7 is the bowl 4
The small part 5 which is inclined downward and outward and is required to be conveyed is prevented from sliding down onto the inclined surface 8.

As shown in FIG. 4, a narrow portion 11 is provided in the middle of the track 7 so that the width of the conveying surface thereof is substantially equal to the width of the micro component 5.
The side is to be excluded. The transport surface of the track 7 in the narrow portion 11 and the inclined surface 8 are connected by a narrow inclined surface 8a.

Although the vibration-type component supply device according to the above-described embodiment supplies minute components, the vibration-type component supply device according to the present invention is also used for supplying components of a larger size. Can be.

[0021]

As described above, in the vibration type component supply device of the present invention, the inner peripheral surface of the bowl between the spiral tracks is formed as a slope inclined downwardly inward of the bowl. Parts that are returned to the bottom of the bowl or the lower track from the middle can be gently slid down along the inclined surface to prevent damage to the parts.

Also, by tilting the transport surface of the truck downward to the outside of the bowl, the components to be transported on the transport surface are moved along the inner peripheral surface of the bowl on the outer peripheral side of the truck, and the necessary components are moved. Can be prevented from sliding down to the inner peripheral side of the truck.

Further, the width of the transport surface of the truck is gradually reduced toward the discharge end, and the width of the transport surface near the discharge end is made substantially equal to the width of the component to be transported. It is possible to gradually adjust the amount of the component toward the discharge end and supply the component to the discharge end in a line without requiring a separate means for adjusting the amount.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a vibration type component supply device.

FIG. 2 is an external perspective view showing a minute component supplied by the component supply device of FIG. 1;

3A is a plan view showing the bowl of FIG. 1, and FIG.

FIG. 4 is an external perspective view showing an enlarged main part of the bowl of FIG. 3;

FIG. 5 is a longitudinal sectional view showing a conventional bowl.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper vibrating body 2 Lower vibrating body 3 Leaf spring 4 Bowl 5 Micropart 6 Bottom 7 Track 8, 8a Inclined surface 9 Discharge end 10 Bolt hole 11 Narrow part

Continued on the front page (72) Inventor Masayoshi Matsushima 1578 Higashikaizuka, Iwata-shi, Shizuoka F-term in NTN Corporation (reference) 3F037 BA01 BA17 CA11 CB05 3F080 AA13 BB05 CB02 CB11

Claims (7)

[Claims] 1. A spiral track rising from the bottom of a bowl is provided on an inner peripheral surface of a bowl to which torsional vibration is applied around a central axis, and a component to be put into the bowl is provided on a transport surface of the track. In the vibration-type component supply device, which conveys along and supplies the discharge end thereof, the inner peripheral surface of the bowl between the spiral tracks is an inclined surface which is inclined downward inward of the bowl. Vibrating parts supply device. 2. The vibration-type component supply device according to claim 1, wherein the transport surface of the truck is inclined downward to the outside of the bowl. 3. The width of the inner peripheral surface of the bowl between the trucks,
3. The vibration-type component supply device according to claim 1, wherein the width of the conveyance surface of the truck is larger than the width of the conveyance surface. 4. The truck according to claim 1, wherein the width of the transport surface of the truck is gradually reduced toward the discharge end, and the width of the transport surface near the discharge end is substantially equal to the width of the component to be transported. The vibration-type component supply device according to any one of the above. 5. The vibration-type component supply device according to claim 1, further comprising a component elimination unit that eliminates unnecessary components in the middle of the track. 6. The apparatus according to claim 1, wherein the component elimination unit sets the width of the transport surface to:
6. The vibration-type component supply device according to claim 5, wherein the narrow portion has a width substantially equal to the width of the component to be conveyed. 7. The vibration-type component supply device according to claim 1, wherein the component is a micro component having a size of approximately 1 mm ³ or less.