JPH066325U - Work supply device - Google Patents

Abstract

(57) [Summary] [Purpose] Automatically supplies an appropriate amount of work to the parts feeder and always keeps the work in the parts feeder to an appropriate amount. [Structure] The detection rod 12 oscillates according to the remaining amount of the work 1 passing directly under it, and the proximity sensor 14 detects this movement to automatically operate a work delivery device (vibration hopper) B.
Since the work is stopped and a certain amount of the work stored therein is dropped, the work 1 in the parts feeder A is always kept in an appropriate amount.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a work supply device that automatically supplies an appropriate amount of work to a parts feeder and smoothly discharges the work from the parts feeder.

[0002]

[Prior art]

 The vibrating parts feeder, which aligns workpieces in a certain direction and sequentially supplies them to the machining process, is widely used in various fields as a highly efficient parts feeder. When supplying work to this parts feeder, conventionally, it was continuously supplied by a conveyor, or the worker supplied the work each time when the remaining amount was estimated.

[0003]

[Problems to be solved by the device]

 However, the parts feeder has an appropriate amount of processing according to its size, and if the work is supplied too much and the processing capacity is significantly exceeded, the parts feeder will be overloaded and vibration will be insufficient. Work discharge is stopped and work supply to the next process is interrupted.

Particularly, in a comparatively long work such as an engine valve for an internal combustion engine, which includes an umbrella portion and a shaft portion, when the amount in the parts feeder is too large, the parts are entangled with each other inside and it is difficult to discharge the work. Therefore, it is necessary to supply an appropriate amount to the parts feeder.

An object of the present invention is to provide a work supply device capable of automatically supplying an appropriate amount of a work to a parts feeder and smoothly discharging the work.

[0006]

[Means for Solving the Problems]

 The present invention hangs down at a proper position of a parts feeder in the vicinity of a flow path of a work formed in the parts feeder, and detects a detection rod swinging by the flow of the work and a swinging of the detection rod. The above-mentioned problem is solved by operating a work feeding device for supplying a work, which is provided with a sensor and facing the parts feeder, on the basis of a detection signal of the sensor.

[0007]

[Action]

 According to the device of the present invention, the detection rod swings according to the remaining amount of the work passing directly below it, and the sensor detects this movement to automatically operate and stop the work delivery device. The work inside is always kept in an appropriate amount.

[0008]

【Example】

 1 to 4 show an embodiment of the present invention, which comprises a vibrating parts feeder (A) and a vibrating hopper (B) for automatically supplying a work to the parts feeder (A). There is. FIG. 5 shows an engine valve (1) which is a work. The engine valve (1) is composed of an umbrella portion (1a) and a shaft portion (1b).

The circular vibrator (2) on the upper surface of the parts feeder (A) vibrates around a vertical axis by a vibrator (3) provided on the lower surface. A circular reservoir (4) is formed in the center of the circular oscillator (2), and the periphery of the reservoir gradually expands upward, and the outer edge is larger than the inner edge. Also, a low-level spiral flow path (5) is continuously provided.

A cutout groove (6) through which the shaft portion (1b) of the engine valve (1) can freely pass is cut from the outer end of the flow passage (5) (lower end portion of FIG. 2). The notch groove (6) is continuously provided with a chute (7) consisting of two parallel rods which are inclined downward in the extension direction thereof, and the notch groove (6) is provided above the notch groove (6). ) And the return rod (8) are obliquely fixed.

The engine valve (1) in the storage part (4) of the parts feeder (A) advances on the flow path (5) toward the outer end due to the vibration of the circular vibrator (2), and becomes a cutout groove. At (6), the shaft (1b) hangs down due to its own weight and becomes vertical, and it transfers to the chute (7) and slides down to the next stroke.

Some of the engine valves (1) that are not vertically aligned are returned by the return rod (8) into the reservoir (4).

A pillar (10) is erected on a support plate (9) fixed to the lower end of the parts feeder (A) in the radial direction, and an upper end of the support pillar (10) above the circular vibrator (2). The pivot (11) facing the centripetal direction is fixed.

At the tip of the pivot shaft (11), a detection rod (12) which hangs downward by its own weight and whose lower end is close to the inner end of the flow path (5) is swingably pivoted. A magnetic plate (13) extends upward at its upper end, and a proximity sensor (14) for detecting the movement of the magnetic plate (13) is attached to the pivot shaft (11).

A horizontal vibrating hopper (B) is installed at the upper right of FIG. 1 of the parts feeder (A), and its discharge port (15) is located at the storage part (4) of the parts feeder (A). It is facing upward. (16) is a leg.

The vibrating hopper (B) is horizontally vibrated in the direction of the reservoir (4) by an exciter (17) provided at the center of the lower surface.

As shown in FIG. 4, the exciter (3) of the parts feeder (A) is connected to the power source (18), and the exciter (17) of the vibration hopper (B) is connected to the relay switch (19). ) Is connected to the power supply (18), and the proximity sensor (14) is connected to the relay switch (19) via the timer (20).

The relay switch (19) is self-held within the set time of the timer (20) by the signal of the proximity sensor (14) and does not open or close even if the next signal is input within the set time.

In the apparatus of the above embodiment, the engine valve (1) in the parts feeder (A) is reduced, and the flow of the engine valve (1) passing through the flow path (5) directly below the detection rod (12) is reduced. When interrupted, the detection rod (12) becomes vertical due to its own weight, as shown by the phantom line in Fig. 3, and the sensor (14) detects the magnetic plate (13) that was also vertical, and the output signal Is generated, the relay (19) is closed for the set time of the timer (20), and the vibrating hopper (B) is vibrated for a certain time by the exciter (17). As a result, the engine valve (1) stored in advance in the hopper (B) is replenished to the parts feeder (A) by a predetermined amount.

When the engine valve (1) continuously passes through the flow path (5) immediately below the detection rod (12), the detection rod (12) swings as shown by the solid line in FIG. (13) is separated from the sensor (14), and the OFF signal generated by the sensor (14) that detects this causes the relay (19) to open for the set time of the timer (20) and the vibration of the vibrating hopper (B). Is stopped, the supply of engine valve (1) is stopped, and the engine valve (1) in the parts feeder (A) is always kept at an appropriate amount.

Even if the engine rod (1) intermittently passes through the flow path (5) immediately below the detection rod (12) and the detection rod (12) repeatedly swings in a short time, the timer (20 The vibration type hopper (B) does not intermittently vibrate within the set time of), and continues the state up to that point.

The above-mentioned device can be effectively used even when another work having a shape similar to that of the engine valve (1) is supplied to the parts feeder (A) by a belt conveyor or the like. .

[0023]

[Effect of device]

 The present invention has the following effects. (a) When the sensor detects the remaining amount of the work in the parts feeder, the work feeding device automatically operates and supplies a certain amount of works, so the work in the parts feeder is always kept at an appropriate amount. Be done.

(B) Therefore, it is possible to prevent the works in the parts feeder from being entangled with each other and not discharged in the next process, the work being cut off, and the parts feeder from being overloaded.

(C) Since the worker does not need to replenish each time, labor can be saved.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a parts feeder and a vibration type hopper showing an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is an enlarged vertical sectional view of a main part taken along line XX of FIG.

FIG. 4 is a block diagram showing electric wiring of the device of the present invention.

FIG. 5 is a side view of an engine valve.

[Explanation of symbols]

(A) Vibration type parts feeder (B) Vibration type hopper (1) Engine valve (workpiece) (1a) Umbrella part (1b) Shaft part (2) Circular vibrator (3) Vibrator (4) Storage part (5) ) Flow path (6) Notch groove (7) Chute (8) Return rod (9) Support plate (10) Strut (11) Pivot shaft (12) Detection rod (13) Magnetic plate (14) Proximity sensor (15) Outlet (16) Leg (17) Exciter (18) Power supply (19) Relay switch (20) Timer

Claims (1)

[Scope of utility model registration request] 1. A detection rod that hangs down at a proper position of a parts feeder in the vicinity of a flow path of a work formed in the parts feeder, and detects a swing of the detection rod that swings due to the flow of the work. A work supply device provided with a sensor, and a work feeding device for replenishing the work facing the parts feeder is operated and stopped based on a detection signal of the sensor.