JP2000211732A - Vibrating parts feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the arbitrary adjustment of a discharge amount of workpieces by forming a cut off part facing a circumferential direction in the vicinity of a workpiece discharge part in the uppermost position in a lined surface slowly tilted in the upward direction and spread gradually diametrically in a spiral shape, and providing this cut off part with a flow regulating plate movable in a diametric direction. SOLUTION: This parts feeder 1 is constituted by arranging a bucket 3 of circular plate shape on a vibration generating base 2. The bucket 3 is formed with an upper surface in its inside in a lined surface 4 of spiral shape, but in this case, a cut off part 8 is formed in a lined surface 4a in the uppermost, and a flow regulating plate 10 is slidably mounted in a diametric direction on a bracket locked by bolt to an external peripheral surface of the bucket 3 corresponding to the cut off part 8. In a condition setting a vibration frequency of the vibration generating base 2 to a degree discharging a workpiece W without its stagnation, a protruding length into the bucket 3 of the flow regulating plate 10 is adjusted along a slot 11, and a diametric directional width of the cut off part 8 is changed, so as to adjust a discharge amount of the workpiece W.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibrating parts feeder, and more particularly to a parts feeder capable of adjusting a discharge amount of a work.

[0002]

2. Description of the Related Art A large number of rod-shaped workpieces, such as engine valves, each having an umbrella at one end, are put into a vibrating bucket, and are aligned in a single row so as to be used in the next machining step. 2. Description of the Related Art A vibrating parts feeder (hereinafter, abbreviated as a parts feeder) for feeding individual parts is known.

FIG. 5 shows an example of a conventional parts feeder (1), in which a circular dish-shaped bucket (3) is mounted on an upper part of a vibrating table (2). The upper surface of the inner surface is an inclined surface which is gradually inclined upward and gradually expands in a spiral shape from the center of the bucket (3) toward the outer periphery.
(4). A tangential discharge part (3a) is continuously provided on the uppermost alignment surface (4a) of the bucket (3), and two obliquely downward round bars parallel to each other are provided at the ends thereof.
(5) A parallel bar type discharge chute (6) composed of (5) is attached by a bracket (7).

An engine valve (hereinafter referred to as a work) (W) inserted into a bucket (3) of a parts feeder (1)
Due to the vibration from the vibration table (2), the umbrella (Wa) rides on the alignment surface (4) in the traveling direction and gradually moves toward the discharge unit (3a) to discharge chute (6). Transferred to The work (W) transferred to the discharge chute (6) has the lower surface of the umbrella portion (Wa) supported by two round bars (5), and the shaft portion (Wb) has two round bars.
Downhill by its own weight with it suspended from during (5).

[0005]

In the above-mentioned conventional parts feeder (1), the work (W) discharged therefrom is discharged.
When adjusting the amount of vibration, the frequency (frequency) of the vibrating table (2) is controlled. That is, the discharge amount of the work (W) is approximately proportional to the vibration frequency, and the discharge amount of the work (W) increases as the vibration frequency increases.

However, if the frequency is increased too much in order to increase the discharge amount of the work, the work (W) is discharged in an intertwined state without being aligned and may not be supplied stably to the next process. Also, if the frequency is reduced to reduce the discharge amount, the work (W) stagnates on the alignment surface (4), and the stable supply of the work (W) to the next process and the adjustment of the discharge amount are required. It was difficult to make them compatible.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has a vibration type in which a work can be aligned and stably discharged at a constant frequency and the discharge amount can be adjusted. It aims to provide a parts feeder.

[0008]

SUMMARY OF THE INVENTION According to the present invention, the above-mentioned object is achieved by inserting a bucket having an alignment surface which is gently inclined upward and has a diameter gradually increasing spirally from a central portion toward an outer peripheral portion. A vibrating parts feeder that sequentially arranges a large number of bar-shaped workpieces having an enlarged diameter portion at one end in a line on the alignment surface and feeds them one by one. Form a notch facing the circumferential direction, and move a flow rate adjustment plate, which is approximately the same size as the width of the notch in the circumferential direction, in this notch in the radial direction so as to be flush with the upper surface of the alignment surface It is solved by providing it as possible.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. The same members as those in the related art are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0010] The parts feeder (1) is provided with a vibrating table (2) and a circular dish-shaped bucket (3).
The upper surface in (3) is a spiral alignment surface (4).

(3a) is a discharge portion connected to the bucket (3) in the tangential direction thereof, and (6) is formed by two obliquely downward round bars (5) and (5) which are parallel to each other. This is a parallel bar type discharge chute.

A cutout (8) is formed in the uppermost alignment surface (4a), and its lower end surface is flush with the lower alignment surface (4b) inside the uppermost alignment surface (4a). No.

[0013] On a bracket (9) bolted to the outer peripheral surface of the bucket (3) corresponding to the notch (8), a notch is formed.
The flow rate adjustment plate (10), which is almost the same size as the circumferential width of (8)
However, it is mounted so as to be slidable in the radial direction by fastening two long holes (11) facing in the radial direction with bolts (12) and nuts (13).

The flow rate adjusting plate (10) slidably penetrates the outer peripheral wall of the bucket (3), and a portion located in the bucket (3) is provided with a notch (8) at the uppermost alignment surface ( It is fitted so as to be flush with the upper surface of 4a).

In the above embodiment, the bucket (3) of the flow rate adjusting plate (10) is set in a state in which the frequency of the vibrating table (2) is set such that the work (W) is smoothly discharged without stagnation. By adjusting the protruding length inward and changing the radial width of the notch (8), the discharge amount of the work (W) can be adjusted.

That is, for example, the flow rate adjusting plate (10) is pulled out of the bucket (3), and the radial width of the notch (8) is adjusted so that only one work can pass through as shown in FIG. When the width of a part of the alignment surface (4a) is reduced,
(W) is entangled or the workpiece (W) is in an unstable posture and tries to pass over the flow rate adjustment plate (10).
(8) It falls on the lower alignment surface (4b). This allows
While the work (W) is prevented from being excessively discharged,
Work (W) with a stable posture with the umbrella (Wa) directed in the direction of travel
Only the liquid passes through the flow control plate (10) and is sent out from the discharge section (3a).

On the other hand, the flow regulating plate (10) is moved inward,
If the radial width of the notch (8) is increased, the amount of the work (W) falling from the notch (8) decreases, and the discharge amount increases.

[0018]

According to the vibrating parts feeder of the present invention, only the work in a certain posture can be stably discharged by simply moving the flow rate adjusting plate in the radial direction and adjusting the radial width of the cutout portion. In addition, the discharge amount of the work can be arbitrarily adjusted.

[Brief description of the drawings]

FIG. 1 is a plan view of a parts feeder according to an embodiment of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is an enlarged vertical sectional front view taken along the line III-III in FIG. 1;

FIG. 4 is an enlarged vertical sectional side view of the line IV-IV.

FIG. 5 is a plan view of a conventional parts feeder.

[Explanation of symbols]

 (W) Work (Wa) Umbrella part (expanded part) (Wb) Shaft part (1) Parts feeder (2) Shaking table (3) Bucket (3a) Discharge part (4) Alignment surface (4a) Topmost Alignment surface (4b) Lower alignment surface (5) Round bar (6) Discharge chute (7) Bracket (8) Notch (9) Bracket (10) Flow adjustment plate (11) Slot (12) Bolt (13) nut

Claims (1)

[Claims] 1. A large number of rod-shaped workpieces each having an enlarged-diameter portion at one end inserted into a bucket having an alignment surface that is gently inclined upward and that gradually expands in a spiral shape from a central portion toward an outer peripheral portion. A vibrating parts feeder which is arranged in a line on the alignment surface and sequentially feeds one by one, wherein a notch directed in a circumferential direction is formed near the uppermost work discharge portion on the alignment surface, A vibrating parts feeder, characterized in that a flow rate adjusting plate having substantially the same dimension as the circumferential width of the notch is provided so as to be radially movable so as to be flush with the upper surface of the alignment surface. .