JPH05105231A - Parts feeder - Google Patents

Abstract

PURPOSE:To prevent the pressing force of a succeeding part from being applied to a part on a part receiving table by smoothly carrying any part in the part receiving table. CONSTITUTION:A parts feeder comprises a part transport table 10 having an inclined transport surface 10a for sliding a part carried in from the upper end of the transport surface 10a to be moved and carried out from the lower end and a part receiving table 20 for receiving a part 60 carried out from the lower end of the part transport table 10. As the attitude of the part receiving table 20, the first attitude suitable for receiving a part and the second attitude suitable for taking out a part are set by the operation of a pneumatic cylinder 40. In the case where the first attitude is set, the rod 32a of a part box stopping mechanism 30 is projected over the transport surface 10a to inhibit the movement of a succeeding part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for supplying parts suitable for use in an assembly line for automobiles and the like.

[0002]

2. Description of the Related Art A conventional component supply apparatus of this type shown in FIG. 6 comprises a component carrier 1 and a component receiver 2 located at the lower end of the component carrier 1. The component receiving table 2 is set such that the inclination of the conveying surface 2a thereof is larger than the inclination of the conveying surface 1a of the component conveying table 1, and a stop plate 2b is projectingly provided at the tip thereof. Further, rollers 4 and 5 that rotate freely are arranged on the upper surfaces of the component carrier 1 and the component receiver 2, respectively, and the roller 4 covers the carrier surface 1a and the roller 5 again.
Respectively constitute the transport surfaces 2a.

In this component feeder, when a component box 6 containing a component is loaded from the upper end of the transport surface 1a, the component box 6 slides on the transport surface 1a and is unloaded from the lower end. Then, the delivered component box 6 is
It moves while sliding on the conveying surface 2a of the component receiving base 2 and stops in a state of contacting with the stop plate 3.

The component box 6 placed on the component support 2 is open to the worker 7 side. Therefore, the worker 7 takes out the component from the component box 6 and mounts the component on an article (not shown) conveyed by the work conveyor 8.

When the component box 6 on the component receiving table 2 is emptied, the worker 7 transfers the component box 6 to the upper end portion of the returning carrier 8. Along with this, the empty component box 6 is conveyed to the lower end of the return table 9, while the subsequent component box 6 is carried on the component receiving table 2.

[0006]

In the case of the above-mentioned conventional component supply device, the pressing force of the succeeding component box 6 acts on the rear end of the component box 6 on the component receiving base 2, which causes the following problems. Occurs. a. If the number of parts in the parts box 6 located on the parts pedestal 2 becomes small, the parts box 6 may be overturned by the pressing force of the succeeding parts box 6. b. When the empty parts box 6 on the parts cradle 2 is removed,
Since the subsequent component box 6 is swiftly carried in onto the component receiving table 2, the impact force when the component box 6 contacts the stop plate 2a is large, and as a result, the components in the component box 6 are damaged. There is a risk that it will be attached or jump out of the parts box 6. In order to avoid this, the following parts box 6 is manually braked while empty parts box 6
Requires a troublesome operation of removing the parts from the parts receiving base 2. In view of such a situation, an object of the present invention is to provide a component supply device capable of smoothly carrying in a component to a component receiving base and preventing a component on the component receiving base from being pressed by a subsequent component. To do.

[0007]

According to the present invention, there is provided a parts transporting table having an inclined transporting surface, a component carried in from the upper end of the transporting surface is slidably moved and carried out from the lower end, and the above-described component transporting. In a component supply device that is located on the lower end side of the platform and has a component receiving platform that receives the component delivered from the lower end, a first posture suitable for receiving the component as the posture of the component receiving platform, Second suitable for taking out the above parts
And a means for prohibiting the movement of the following component on the component carrier when the first orientation is set.

[0008]

When the component cradle is in the first posture, the component is smoothly carried in on the component cradle. Also, the parts pedestal is the second
When the posture is in the above state, the movement of the subsequent component on the component carrier is prohibited, so that the pressing force of the subsequent component does not act on the component on the component carrier.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

The embodiment shown in FIG. 1 is a component carrier 10 having a carrier surface 10a inclined by an angle α, and the component carrier 1
And the component receiving base 20 located on the lower end side of the inclination of 0.

The transfer surface 10a of the component transfer table 10 is composed of a group of rollers 11 which rotate freely. A component box stop mechanism 30 is arranged at the lower end of the tilt of the component carrier 10. Further, a pneumatic cylinder 40 is arranged below the lower end of the tilt.

As shown in FIG. 2, the parts box stopping mechanism 30 includes a tubular body 31 and a piston 3 fitted in the tubular body 31.
2, a contactor 33 that projects from the piston 32 toward the component pedestal 20, and a spring 34 that urges the piston 32 upward. The rod 3 of the piston 32
2a is located between the rollers 11, and its tip always projects from the transport surface 10a. A guide hole 31a for guiding the contact 33 in the vertical direction is formed on the peripheral wall of the cylindrical body 31.

Piston rod 4 of the pneumatic cylinder 40
A base of a link rod 51 is pivotally attached to the tip of the component 1, and a support arm 52 facing the component receiving base 20 side is provided on the front support column 12 of the component carrying base 10. The tip ends of the link rod 51 and the support arm 52 are pivotally attached to the lower portion of the rear end portion of the component receiving base 20 and the central portion of the side surface, respectively.

On the other hand, the parts receiving base 20 is provided with a conveying surface 20a composed of a group of free rotating rollers 21 at its upper portion, and a stop plate 22 is provided at its tip.

The operation of this embodiment will be described below. In this embodiment, when the switching valve 80 provided on the front side of the work conveyor 70 is operated to retract the pneumatic cylinder 40, the component receiving base 20 is rotated counterclockwise via the link rod 51. It Then, when the component receiving base 20 is rotated by a predetermined angle, the lower surface of the component receiving base 20 contacts the contactor 33 of the component box stop mechanism 30, and thereafter the contactor 33 causes the piston 32 to move.
At the same time, it is moved downward against the spring 34.

The component receiving base 20 is rotated to the position shown in FIG. 3, that is, to the position where the contact 33 contacts the lower end of the guide hole 31a. In this state, the parts carrier 1
No. 0 transfer surface 10a coincides with the transfer surface 20a of the parts receiving base 20, and the piston rod 32a of the parts box stopping mechanism 30
Is positioned below the transport surface 10a.

With the component receiving base 20 in the posture shown in FIG. 3 (hereinafter referred to as component receiving posture), the component box 60 containing the components (not shown) is loaded from the upper end of the component transporting base 10. Then, the parts box 60 moves while sliding on the transfer surface 10a, and is carried into the parts receiving base 20 from the lower inclined end of the transfer surface 10a. Then, the carried-in parts box 60
Moves while sliding on the transport surface 20a of the component receiving base 20, and then stops by contacting the stop plate 22.

The rear end of the leading component box 60 located on the component support 20 is positioned on the transfer surface 10a so as to cover the piston rod 32a. Further, the succeeding component box 60 is positioned on the transport surface 10a with its front surface abutting on the rear surface of the leading component box 60.

Next, when the switching valve 80 is operated to extend the pneumatic cylinder 40, the link rod 51 is moved to the parts receiving base 2
Since the rear end portion of 0 is pushed up, the pedestal 20 is rotated in the clockwise direction. The piston rod 32a of the component box stop mechanism 30 is moved upward with the rotation of the component receiving base 20.

The component receiving base 20 is rotated until the component take-out posture shown in FIGS. During this rotation, the rear surface of the leading component box 60 is separated from the front surface of the succeeding component box 60, but before this separation, the tip of the piston rod 32a projects above the transport surface 11a. Therefore, after the detachment, the front surface of the subsequent component box 60 contacts the piston rod 32a, and as a result, the subsequent component box 60 moves to the component receiving base 20 side and contacts the leading component box 60. There is no such thing.

The parts receiving table 20 shown in FIG.
Since the inclination is larger than that of the transport surface 10a of 0, the worker 90 can easily take out the component from the component box 60. The taken-out parts are inserted into the article (not shown) conveyed by the conveyor 70.

When the parts box 60 on the parts receiving base 20 is emptied, the worker 90 transfers the parts box 60 to the upper end portion of the tilting stand 100 for returning, whereby the empty parts box 60 is moved. It is conveyed toward the lower end of the return table 8.

After that, the pneumatic cylinder 40 is retracted again and the component receiving base 20 is rotated to the position shown in FIG.
Since the piston rod 32a is located below the transport surface 10a, the subsequent component box 60 in FIG. 1 is loaded onto the component receiving table 2 as shown in FIG. Therefore, by extending the pneumatic cylinder 40, the component box 60 on the component receiving base 20 can be set in the component taking-out posture,
At that time, the subsequent component box 60 comes into contact with the piston rod 32a and stops.

In the above-described embodiment, when the pneumatic cylinder 40 is extended and retracted, the switching valve 80 is manually operated. However, if an electromagnetic switching valve is used instead of the switching valve 80, one-time switching is performed. The posture of the component receiving stand 2 can be changed by operation. In this case, the electromagnetic switching valve is controlled so that the cylinder 40 is always kept in the expanded state and that the compression operation and the expansion operation of the cylinder 40 are sequentially performed by the switch operation. This control can be performed by control means such as a sequencer (not shown). The operation of the switch is executed after the empty component box 60 is removed from the component receiving base 20.

It is also possible to omit the operation of the above switches. In this case, the empty parts box 6 can be removed from the parts receiving base 20.
A sensor for detecting that 0 is removed or a sensor for detecting that the empty parts box 60 is placed on the tilting table 100 for returning is provided, and the detection signal of this sensor is used as the operation signal of the switch. Used instead of.

Further, in the above embodiment, the rod 32a of the component box stopping mechanism 30 is retracted by utilizing the motion of the component receiving base 20, but the rod 32a may be retracted by an electric actuator such as an electromagnetic solenoid. It is possible.
In this case, it is necessary to detect the operating position of the component receiving base 20 in order to set the operating timing of the electric actuator, and this operating position corresponds to the stroke amount of the pneumatic cylinder 40. Therefore, a sensor for detecting the stroke amount of the pneumatic cylinder 40 may be provided, and the electric actuator may be controlled to be turned on and off at appropriate times based on the output of the sensor.

FIG. 4 shows another embodiment of the present invention. In this embodiment, both rear sides of the component receiving base 20 'are pivotally attached to the upper front part of the component transporting base 10 by a supporting member 110, and an arc-shaped stopping rod is provided on the rear bottom surface of the component receiving base 20'. 111 is provided.

The stopping rod 111 has a shape along the circumference centered on the swing axis of the component receiving base 20 '. When the parts receiving base 20 'is in the parts taking-out posture shown in FIG.
When the component receiving base 20 'is in the component receiving posture shown in FIG. 5, the leading end portion is located below the transporting surface 10a.
Therefore, the rod 111 has a function similar to that of the component box stopping mechanism 30. The component receiving base 20 'is swung by an appropriate actuator such as a pneumatic cylinder (not shown).

In each of the above-described embodiments, the parts are conveyed while being housed in the parts box 60. However, when the parts are large and have a shape capable of stable conveyance on the rollers 11 and 21, May place the component directly on the transport surface 10a.

[0030]

According to the present invention, since the component receiving stand can be set in a posture suitable for receiving the component, the component can be carried into the component receiving stand smoothly, and as a result, the component is damaged. Etc. are prevented. In addition, when the parts cradle is set to a posture suitable for picking up parts, movement of subsequent parts on the parts carrier is prohibited. do not do. Therefore, there is no inconvenience that the parts on the parts pedestal fall over due to the pressing force.

[Brief description of drawings]

FIG. 1 is a conceptual diagram showing an embodiment of a component supply device according to the present invention.

FIG. 2 is a conceptual diagram showing a state in which a component receiving stand is set in a component taking-out posture.

FIG. 3 is a conceptual diagram showing a state in which a component receiving stand is set in a component receiving posture.

FIG. 4 is a conceptual diagram showing a state in which the component receiving stand is set in a component taking-out posture in another embodiment of the present invention.

FIG. 5 is a conceptual diagram showing a state in which a component receiving stand is set in a component receiving posture in another embodiment of the present invention.

FIG. 6 is a conceptual diagram showing an example of a conventional component supply device.

[Explanation of symbols]

 10 Parts Conveying Platform 10a Conveying Surface 11 Roller 20 Parts Receiving Platform 20a Conveying Surface 21 Roller 22 Stop Plate 30 Component Box Stopping Mechanism 40 Pneumatic Cylinder 51 Link Rod 52 Support Arm 60 Component Box 111 Rod

Claims (1)

[Claims] 1. A component carrier having an inclined transport surface, which slides a component loaded from the upper end of the transport surface, and transports the component from the lower end, and a component transport base located at the lower end side of the component transport base. In a component supply device having a component receiving tray for receiving the component delivered from the lower end, the component receiving tray has a first posture suitable for receiving the component and a posture suitable for taking out the component. A component supply device comprising: a posture setting unit that sets a second posture; and a unit that prohibits movement of a subsequent component on the component transfer table when the first posture is set. ..