JPH0124016Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a device for inverting small parts such as upper seats for valve springs, which are transported one by one by a parts feeder, and feeding them to an assembly line, etc. It is related to.

[Prior art]

2. Description of the Related Art Conventionally, for example, when supplying an article in an inverted manner, a device is well known in which the article is held by a reversing arm, and the reversing arm is rotated half a turn in this state to invert and supply the article. For example, such a reversing device is shown in Japanese Patent Laid-Open No. 56-103017. However, since this conventional device holds and inverts articles one by one, the articles must be relatively large, and therefore, it is difficult to handle small workpieces such as those conveyed by a vibrating parts feeder. cannot be reversed by the conventional device described above.

[Purpose of invention]

The present invention was developed in this conventional situation, and it is an object of the present invention to provide an article reversing and feeding device that can automatically reverse and feed small parts such as those fed by a parts feeder.

[Structure of the idea]

The present invention comprises a reversing supply device consisting of a parts feeder, a reversing machine, and a delivery device, and the reversing machine is combined with a rotary drive device, which extends in a direction perpendicular to the output shaft of the reversing device, and is capable of inserting and inserting a plurality of articles. A pair of skewer rods with a length that can be inserted and supported, and when the skewer rods are located at the end of the discharge path, the locking member is protruded to lock the article to the rods with a space for one item. A stopper device for stopping the product, a guide member provided along the rotation trajectory of the tip of the skewer rod to prevent the product from falling off while the product is being reversed, and a detection device for detecting when a predetermined number of products have been fed to the skewer rod. and a control circuit that uses the detection signal to stop the parts feeder, move the stopper device backward, and then rotate the rotary drive device by a predetermined angle. The article is fitted onto the skewer rod, and in this state the skewer rod is rotated to turn the article over.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 3 show an embodiment of the present invention. In the figures, 1 is a parts feeder, and this is a parts feeder main body 1 in which a large number of valve spring upper seats 2 having holes 2a are accommodated.
By vibrating the main body 1a, the parts feeder 1 continuously feeds the upper sheet 2 in an aligned state with its flange portion 2b located downward and its hole 2a facing in the vertical direction. It is designed to be supplied to the discharge path 1b.

Further, a discharge hole 1 for allowing the upper sheet 2 to fall is provided at the downstream end of the discharge path 1b.
c is formed. A reversing machine 3 is disposed below the discharge hole 1c, and the reversing machine 3 is composed of a rotary drive device 4, a skewer rod 5, a stopper device 6, a detector 7, and a control circuit 8. There is.

The rotary drive device 4 is composed of a rotary housing 43 and a rotary actuator 41, and a disc-shaped base plate 44 of the rotary housing 43 is disposed vertically, and a cylindrical guide member 4 is fixed thereto.
A charging hole 45a and a delivery hole 45 are provided at the top and bottom of 5, respectively.
The rotary actuator 41 is attached to the center of the substrate 44, and its output shaft 42 projects horizontally below the discharge hole 1c of the discharge path 1b. The output shaft 42 is rotated by a predetermined angle.

A mounting base 51 of the skewering rod 5 is attached to the output shaft 42, and a pair of workpiece supports 52, 53 are implanted in the mounting base 51. The central axis of the skewer rod 5 is in a straight line and perpendicular to the output shaft 42, and when the skewer rod 5 is in a vertical state, its workpiece support parts 52, 53 are aligned with the loading and discharging holes 45a, 45b.

Also, approximately at the center of the substrate 44 of the rotary housing 43 is a drive cylinder 61 of the stopper device 6.
A locking member 62 attached to the piston rod of the cylinder 61 can freely move in and out of the rotating housing 43 near the mounting base 51 of the skewer rod 5.

Further, the detector 7 is composed of a phototube mounted opposite to the edge of the discharge hole 2c of the discharge path 1b, and this detects when a predetermined number of upper sheets 2 are supplied to the skewer rod 5 from the parts feeder 1. The purpose is to detect The control circuit 8 supplies start and stop signals to the parts feeder 1 and to the drive cylinder 61 of the stopper device 6.
A switching signal is supplied to the switching valve 63 of the rotary drive device 4, and a drive signal is further supplied to the rotary actuator 41 of the rotary drive device 4.

A delivery device 9 is provided below the reversing machine 3.
is provided, and the delivery path 91 of the delivery device 9 is perpendicular to the delivery path 1b.
A delivery cylinder 92 is attached to the rear end of the cylinder 92, and a pressing member 93 attached to the piston rod of the cylinder 92 presses against the rotating housing 43.
It can freely appear and retract below the delivery hole 45b.

Next, the operation will be explained.

In the device of this embodiment, when a large number of upper sheets 2 are fed into the parts feeder 1, the upper sheets 2 are reversed so that the flange portion 2b is positioned upward and are fed out one by one. When activated, the skewer rod 5 is in a vertical position, and the locking member 62 of the stopper device 6 projects into the rotary housing 43.

In this state, when the upper sheet 2 is fed into the parts feeder 1 and the parts feeder 1 is started, the upper sheet 2 is supplied to the discharge path 1b by the vibration of the parts feeder 1.
In this case, the upper sheet 2 has a flange portion 2
b is located below, and the holes 2a thereof are continuously supplied in an aligned state facing in the vertical direction.

When the upper sheet 2 is conveyed to the end of the discharge path 1b, it falls from the discharge hole 1c and is successively fitted into the support portion 52 of the skewer rod 5. In this case, the first upper sheet 2 is locked by the locking member 62 of the stopper device 6, and a space for one upper sheet 2 is created at the connecting portion between the support portion 52 and the mounting base 51.

When a predetermined number of upper sheets 2, five in this embodiment, are fitted into the support portion 52 of the skewer rod 5, the detection device 7 detects this and outputs a detection signal a to the control circuit 8. Then, the control circuit 8
Parts feeder 1 is stopped by stop signal b from . Further, the switching valve 63 is switched to the contraction side by the switching signal c from the control circuit 8, and the locking member 62 is recessed into the guide hole 44a of the rotating housing 43, thereby fitting into the support portion 52 of the skewer rod 5. The removed upper sheet 2 falls and exits the discharge path 1b.
The upper sheet 2 located in the discharge hole 1c also fits into the support portion 52. At this time, there is no upper sheet 2 in the discharge hole 1c of the discharge path 1b,
The first of the following upper sheets is discharge path 1b.
It is located above.

Then, the drive signal d is output from the control circuit 8 to the rotary actuator 41 of the rotary drive device 4, and the actuator 41 drives the skewer rod 5.
is rotated by 180 degrees, and as a result, the upper sheet 2 fitted on the skewer rod 5 is reversed. and the inverted upper sheet 2
falls onto the delivery path 91 of the delivery device 9 through the delivery hole 45b, and the upper sheet 2 is further moved by the pressing member 93 of the delivery cylinder 92 so that its flange portion 2b is positioned upward and the hole 2a is directed in the vertical direction. They are pressed in the same state and sent out one by one.

In addition, when the above-mentioned skewer rod 5 rotates 180 degrees,
The switching valve 63 is switched to the extension side by the switching signal c from the control circuit 8, and the locking member 62 protrudes into the rotating housing 43. In this state, the parts feeder 1 is started by the starting signal b from the control circuit 8, and the upper seat is opened. 2 are transported again and fall from the discharge hole 1c, and while the upper sheets 2 are being fed out in this manner, the upper sheets 2 are fitted into the support portion 53 of the skewer rod 5 one by one.

In this embodiment, the upper sheet 2 is fitted onto the skewer rod 5 with a space for one piece left by the stopper device 6, and the stopper device is retracted to remove the last upper sheet 2 on the discharge path 1b. The upper sheet 2 is also fitted into the skewer rod 5, and in this state the skewer rod 5 is rotated to invert the upper sheet 2, so even small parts can be easily and reliably reversed and fed automatically with a simple structure. .

In the above embodiment, the case where the upper sheet 2 for a valve spring is reversely fed is explained, but the present invention can also be applied to reversely feeding other than the upper sheet 2 as long as it is a perforated article conveyed by the parts feeder 1. Of course.

[Effect of idea]

As described above, according to the article reversal feeding device according to the present invention, a predetermined number of articles are fitted to the skewer rod in a locked state with a space for one article by the stopper device, and Since the last article on the discharge path is rotated with the skewer rod fitted with the skewer rod and the article is reversed, subsequent articles on the discharge path do not interfere with the reversing operation. The simple structure has the effect of automatically reversing and feeding even small articles easily and reliably.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional front view of an article reversal feeding device according to an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG.
The figure is a cross-sectional side view thereof. 1...Parts feeder, 1b...Discharge path, 1c
...Discharge hole (end of discharge path), 2... Goods, 2a
... hole, 3 ... reversing machine, 4 ... rotary drive device, 5
...Skewer rod, 6...Stopper device, 7...
Detector, 8... Control circuit, 9... Sending device, 42
...Output shaft.

Claims (1)

[Claims for Utility Model Registration] A device that feeds articles with holes in them by turning them over during transportation, and continuously arranging the articles so that the holes of the articles face upward and downward. A parts feeder is provided that supplies the parts to a horizontal discharge path, and a reversing machine for reversing articles is provided below the end of the parts feeder's discharge path, and the reversing machine is provided below the end of the parts feeder's discharge path. A rotary drive device having an output shaft that projects horizontally and is rotationally driven; and a rotary drive device that is attached to the output shaft of the rotary drive device so as to protrude at right angles to the output shaft, and is capable of inserting and inserting articles that fall from an end of a discharge path, and that is capable of inserting a plurality of articles. a pair of skewer rods with a length that can be inserted and supported; and a locking member that can be retracted between the end of the discharge path of the parts feeder and the output shaft of the rotary drive device, and the skewer rod is connected to the discharge path. A stopper device that locks a falling article by protruding a locking member when positioned at an end and maintaining a space for one article at a connection portion of the skewer rod with the output shaft, and a skewer rod. A guide member is provided on the outer periphery of the rotating locus of the skewer rod so that the articles inserted into the skewer rod do not fall off during reversal of the output shaft, and a guide member is provided on the outer periphery of the rotation trajectory of the skewer rod, and a guide member is provided to ensure that a predetermined number of articles have been supplied to the skewer rod from the parts feeder. It consists of a detector that detects parts, and a control circuit that uses a signal from the detector to stop the parts feeder, move the stopper device backward, and then rotate the rotary drive device by a predetermined angle. 1. A reversing and feeding device for an article, characterized in that it is provided with a delivery device that sends out the article.