JPH0632440A - Part feed device - Google Patents

Abstract

PURPOSE:To provide a part feed device which allows parts such as screws and the like to be fed in order while being regularly lined up in attitude. CONSTITUTION:In the device for feeding parts each of which is composed of a head section, and a shaft section smaller in diameter than the head section, for example, screw to be lined up so as to be fed in order, a staircase shape support plate 30 provided with steps 31 coming downward to the advancing direction of each screw 2 to be fed, is laterally provided between vertical guide plates 27 at both the sides of the device, and concurrently the support plate 30 is provided with a line-up feed guide 26 where each guide hole 28 which is narrower than the diameter of the head section of each screw 2 but is wider than the diameter of the shaft section, is formed in the longitudinal direction, and with a vibrator 29 vibrating the line-up feed guide 26.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component supply device for sequentially supplying components, each of which has a head and a shaft, such as screws and rivets, one by one.

[0002]

2. Description of the Related Art In a conventional screw feeder, the screws 2 sent one after another from a hopper are aligned by an alignment feed guide 40 as shown in FIGS. It is sequentially sent to the process). That is, the alignment feed guide 40 has a support plate 43 which is inclined downward in the traveling direction of the screw 2 between the guide plates 41 provided upright on both sides.
Is provided side by side, and the screw 2 is provided at the center of the support plate 43.
A guide hole 42 having a width narrower than the diameter of the head portion and wider than the diameter of the shaft portion is provided. Since the center of gravity of the screw 2 sent to the support plate 43 is below the shaft portion, the shaft portion falls into the guide hole 42, and thus the head is aligned on the support plate 43. In this state, the vibration of the vibrator 29 causes the guide hole 42 to slide forward and be sequentially supplied to the next step.

[0003]

The above-mentioned aligning feed guide 4
At 0, when the length of the shaft portion of the screw 2 is long as shown in FIG. 7, the shaft portion smoothly drops into the guide hole 42, so that it is easy to take an upright regular alignment posture. However, in the case of a screw having a short shaft portion, the center of gravity of the screw is located near the head portion, so that the shaft portion is unlikely to fall into the guide hole 42. Therefore, as shown in FIG. Since it is sent in the state of being placed on the board, there is a problem that it causes trouble in the next screw tightening step and the like.

SUMMARY OF THE INVENTION An object of the present invention is to provide a parts supply device in which parts such as screws are always supplied in a regular alignment posture and sequentially supplied.

[0005]

In order to achieve the above object, the present invention is an apparatus for aligning and sequentially supplying parts comprising a head and a shaft having a diameter smaller than that of the head. Between the guide plates, a stepped support plate having a step down in the moving direction of the component is provided horizontally, and a guide hole having a width narrower than the diameter of the head of the component and wider than the diameter of the shaft is longitudinally provided on the support plate. It is characterized in that an alignment feed guide formed in the direction and a vibrator (vibrating body) for vibrating the alignment feed guide are provided.

Further, a hopper having a through hole, a guide pipe penetrating through the through hole and vertically movable into the hopper, and having a slit at the upper end in the longitudinal direction,
An inclined scooping member that is integrally formed on the upper end side portion of the guide pipe and has a guide groove for a component on the upper surface, and a claw that opens and closes the upper end opening of the guide pipe by moving in and out from the slit as the guide pipe moves up and down. A member, a chute that is installed below the guide pipe and slides out a component that falls in the guide pipe to the side, and the aligning feed guide and the vibrator that are provided on the side of the chute may also be configured. Good.

[0007]

[Function] When the parts sent to the support plate of the alignment feed guide have a short shaft part, the shaft part does not easily drop into the guide hole, and therefore the parts are placed sideways on the support plate. It is easy to be sent in the state of.

However, in the present invention, since the support plate is provided with a step, the impact of dropping the component on the step increases the chances that the shaft portion will fall into the guide hole, and the component in a horizontal position will also be normal. It is surely corrected to an upright regular alignment posture and sequentially supplied to the next step. The sliding forward movement of the parts is achieved by the vibration of the vibrator.

Further, in the apparatus according to the second aspect, when the guide pipe moves up in the hopper, the scooping member scoops up a plurality of parts, and the claw member opens the upper end opening of the guide pipe. To the alignment feed guide by sliding the chute below. Then, when the guide pipe descends, the claw member closes the upper end opening of the guide pipe, and the component does not drop. By repeating the above operation continuously, the components in the hopper are reliably delivered one by one.

[0010]

1 to 5 show a screw feeder as an embodiment of the present invention. In the figure, 1 is a hopper into which a screw 2 is inserted, and a circular hole 3 and a long hole 4 are continuously formed through the bottom of the hopper (FIG. 2). A cylindrical guide 5 is provided upright below the circular hole 3.

Reference numeral 6 denotes a guide pipe housed in the guide 5 so as to be movable up and down. A slit 7 is provided in one of the upper ends (right side in FIG. 1) in the longitudinal direction, and the other end of the upper end is provided. , An inclined blade-shaped scooping member 8 is integrally provided for breaking the scrum state of the supply component such as a screw and guiding the component to the guide pipe 6 side. This scooping member 8
The upper surface of the is inclined at the same slope as the bottom surface of the hopper 1, and a guide groove 9 is provided in the longitudinal direction thereof. The upper ends of the guide pipe 6 and the scooping member 8 move in and out through the circular hole 3 and the long hole 4 of the hopper 1 as they move up and down. An opening 36 is formed on one side of the lower end of the guide pipe 6 (on the right side in FIG. 1).

Reference numeral 10 is a crank mechanism for moving the guide pipe 6 up and down. That is, as shown in FIG. 3, 11 is an arm fixed to the rotary shaft 13 of the motor 12, 14 is a connecting rod whose central portion is pivotally attached to the bracket 31, and long holes 16 are provided at both ends thereof. 17 is provided. The arm 1 is inserted into each of the long holes 16 and 17.
The pin 18 provided on the tip of the guide pipe 1 and the pin 20 provided on the convex portion 19 (FIG. 1) on the side surface of the guide pipe 6 are slidably engaged with each other. Therefore, when the arm 11 is rotated by the operation of the motor 12, the connecting rod 14 reciprocally rotates about the pivot 15 as a fulcrum via the pin 18, so that the guide pipe 6 moves up and down via the pin 20.

The means for moving the guide pipe 6 up and down is not limited to the crank mechanism 10 described above, and any other vertical drive mechanism may be used.

Reference numeral 21 is a claw member having a claw 22 at the upper end and a lower end pivotally attached to the guide 5 by a spring 24a.
Is urged so that the tip of the abuts on the guide pipe 6. Further, 24 is a chute having an inclined sliding surface 25 formed on the upper end thereof, which is erected so as to be positioned inside the guide pipe 6.

Reference numeral 26 is a screw 2 that slides down the sliding surface 25.
Is an alignment feed guide for aligning and feeding the sheets, and stepwise support plates 30 are laterally provided between the vertical guide plates 27 on both sides. That is, the support plate 30 is formed with a plurality of steps 31 descending in the traveling direction of the screw 2 at predetermined intervals, and in the central portion thereof is smaller than the diameter of the head of the screw 2 and smaller than the diameter of the shaft portion. A wide guide hole 28 is provided in the longitudinal direction. 29
Is a vibrator for vibrating the guide 26.

Next, the operation of the screw supply device will be described.
The chain double-dashed line in FIG. 1 and FIG. 5 (a) show the state in which the guide pipe 6 is at the lower limit position. In this state, the spring 24a
The claw 22 of the claw member 21 urged by means of entering the slit 7 of the guide pipe 6 and closing the upper end of the guide pipe 6, the screw 2 in the hopper 1 falls into the guide pipe 6. There is no such thing.

When the motor 12 operates to raise the guide pipe 6 through the crank mechanism 10, the scooping member 8 also rises in the hopper 1 and scoops up the plurality of screws 2. The scooped-up screw 2 slides along the guide groove 9 on the upper surface.

On the other hand, as the guide pipe 6 rises, the bottom surface 7a of the slit 7 abuts against the lower surface of the claw 22 and pushes it up, so that the claw member 21 rotates clockwise in FIG. Is opened (FIG. 5 (b)). for that reason,
The screw 2 on the upper portion of the claw 22 falls into the guide pipe 6, slides on the sliding surface 25 of the chute 24 below, and is fed onto the side-aligned feed guide 26.

The guide pipe 6 is at the upper limit position (solid line in FIG. 1).
After reaching, the crank mechanism 10 immediately descends,
Since the pawl 22 closes the upper end again, the next screw 2 sliding on the guide groove 9 of the scooping member 8 stops on the upper surface of the pawl 22. By repeating the above operation continuously,
The screws 2 in the hopper 1 are surely fed one by one to the alignment feed guide 26. Since the scooping member 8 moves up and down in the hopper 1 to break up the scum of the screws 2, the screws 2 are smoothly fed one by one.

Next, when the shaft 2 of the screw 2 sequentially fed onto the support plate 30 of the alignment feed guide 26 has a long shaft portion, the center of gravity is located below the shaft portion. It is easy to fall and take a regular alignment posture. However, in the case where the shaft portion is a screw, the shaft portion does not drop into the guide hole 28 as shown in FIG. 8 described above, and it may be sent while being horizontally mounted on the support plate 30. easy. However, even in that case, in the present invention, since the step 31 is provided on the support plate 30, there is an opportunity for the shaft portion to drop into the guide hole 28 due to the impact when the screw 2 drops the step 31. As the number of screws 2 in the horizontal direction is increased, the screws 2 in the horizontal posture are surely forced to the upright regular alignment posture, and are sequentially supplied in the next screw tightening step and the like. The sliding forward movement of the screw 2 is achieved by the vibration of the vibrator 29.

[0021]

According to the present invention, the alignment feed guide is provided with the posture correcting means for the components, so that the components can be sequentially supplied to the required steps in the regular alignment posture which is always upright.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a plan view of an embodiment of the present invention.

3 is a view showing a crank mechanism which is a vertical movement driving mechanism of the present invention, and is a view taken along the line AA of FIG.

FIG. 4 is a BB of FIG. 1, showing the alignment feed guide of the present invention.
It is a line sectional view.

FIG. 5 is a cross-sectional view of essential parts showing an operating state of the guide pipe of the present invention.

FIG. 6 is a cross-sectional view showing a conventional alignment feed guide.

FIG. 7 is a cross-sectional view showing a regular alignment posture of screws.

FIG. 8 is a cross-sectional view showing a non-aligned posture of screws.

[Explanation of symbols]

 1 hopper 2 screw 3 circular hole 4 long hole 6 guide pipe 7 slit 8 scooping member 9 guide groove 10 crank mechanism 21 claw member 24 chute 26 alignment feed guide 27 guide plate 28 guide hole 29 vibrator 30 support plate 31 step

Claims (2)

[Claims] 1. In a device for aligning and sequentially supplying components including a head portion and a shaft portion having a diameter smaller than that of the head portion, a staircase provided with a step down in the traveling direction of the components between vertical guide plates on both sides. -Shaped support plate is provided laterally, and in the support plate, a guide hole having a width narrower than the diameter of the head of the component and wider than the diameter of the shaft is formed in the longitudinal direction, and the alignment feed guide. And a vibrator that vibrates the component. 2. A hopper having a through hole, a guide pipe penetrating through the through hole so as to be vertically movable into the hopper, and having a slit at its upper end in the longitudinal direction, and an upper end of the guide pipe. An inclined scooping member that is integrally formed on the side and has a guide groove for a component on the upper surface, a claw member that moves in and out of the slits to open and close the upper end opening of the guide pipe as the guide pipe moves up and down, and a guide pipe. 2. A chute which is installed below the chute and sends out a part that falls in the guide pipe by sliding it sideways, and an alignment feed guide and a vibrator according to claim 1, which are provided on the side of the chute. Parts supply device.