JPH0710040B2 - Parts feeder of automatic parts insertion machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a component automatic insertion machine for inserting an electronic component such as an IC into a predetermined position of a printed circuit board using a robot hand. The present invention relates to a component supply device that sequentially supplies electronic components to positions.

[Conventional technology]

In the component supply device of the automatic component insertion machine, sticks in which a plurality of electronic components are aligned and stored are stacked in a plurality of stages, and the electronic components in the lowermost stick slide down inside the stick by their own weight and move on the chute rail. Then, the chute rail is sent to a position where the robot hand should hold it.

In that case, not only the electronic parts are small and extremely lightweight, but also there are burrs inside the parts and the stick, so there is a risk that the electronic parts may get caught in the stick and cause parts jam, and it is required to prevent it. There is.

Therefore, in the prior art, as shown in Japanese Patent Laid-Open No. 58-114486, there is a technique in which the entire holding member for supporting a cassette as a stick is periodically rocked by a cylinder or the like.

[Problems to be solved by the invention]

By the way, in the prior art, since the entire holding member is swung periodically, it is possible to prevent the electronic parts from being jammed.

However, there are various kinds of electronic parts, especially those with a small shape and weight, if there are slight steps or burrs at the outlet part of the stick, they will be caught and they will shake the entire holding member. Even if it is moved, there is a problem that it is difficult to clear the parts jam.

An object of the present invention is to provide a component supply device for an automatic component insertion machine that can easily and reliably prevent the component jamming in the stick in view of the problems of the above-mentioned prior art.

[Means for solving problems]

In the present invention, a chute rail installed in an inclined state,
A stick holder part that holds a plurality of sticks stacked in a stack in multiple stages and discharges the parts inside the stick toward the chute rail from the discharge port of the bottom stick, and is provided in the middle of the chute rail. The part escape part that retains the parts sent from the bottom stick and sends out the parts sequentially in the unloading direction, and the bottom stick is directly struck in conjunction with the sending operation of the part escape part. The component supply device is configured to include a striking unit that can contact.

[Action]

When the stick in which a plurality of parts are aligned and housed is set in the stick holder part, the parts are discharged toward the chute rail from the discharge port of the stick at the bottom.

At the time of discharging the parts, if there is even a slight step or flash in the stick, the parts may be caught by the sticks and the parts may be jammed.

However, in the present invention, as described above, since the striking means for directly striking the lowermost stick in association with the operation of the component escape portion is provided, the striking of the striking means causes the clogging of components in the stick. It is possible to prevent the jam, and even if the jam occurs, it is possible to eliminate the jam due to the impact. Therefore, there is an effect that it is possible to prevent jamming of parts, and an effect that the reliability can be improved accordingly.

〔Example〕

The present invention will be described below with reference to the accompanying drawings. FIG. 1 is an overall view showing an embodiment of the present invention, FIG. 2 is a side view showing a stick holder part, and FIG. 3 is an enlarged view showing a main part of the stick holder part.

In the component supply device of the embodiment shown in these drawings, the electronic component 1 can be inserted into the printed circuit board (not shown) by the hand 3 of the automatic component inserting machine, so that the electronic component 1 can be gripped by the hand 3. The chute rail 10, a stick holder portion 20, a partial escape portion 40, and a striking means 60 are provided.

The chute rail 10 is installed in an inclined state on a rail base 15 supported by a supporting means (not shown), and when the electronic component 1 is fed into the upper part thereof, the electronic component 1 slides down by its own weight, and The component 1 is transported. At that time, a guide member 16 for guiding the sliding of the electronic component 1 is provided above the chute rail 10. A stopper 11 is attached to the lower end of the chute rail 10 to stop the positioning of the conveyed electronic component 1 because the hand 3 of the automatic component inserting machine grips the electronic component 1. Stopper 11
Is attached to the tip of a positioning bolt 12 arranged at the lower end of the chute rail 10 so that the position of the positioning bolt 12 can be adjusted by adjusting the positioning bolt 12. The positioning bolt 12 is attached to a fixing member 13 fixed to the lower end of the chute rail 10 by a nut 14 so that its position can be adjusted.

The stick holder unit 20 holds the sticks 2 in which a plurality of electronic components 1 are aligned and stored in a stacked manner in a plurality of stages, and discharges the electronic unit 1 toward the shoot rail 10 from the bottommost stick 2A. Is configured.

That is, the stick holder portion 20 has the same structure as that shown in FIGS.
As shown in the figure, a pair of stick guide plates 21 and 22 mounted on the upper part of the chute rail 10 so as to face each other at the same inclination angle as the chute rail 10 and having a shape into which the stick 2 can be inserted; It has a holder plate 23 provided below the stick guide plates 21 and 22 and a stick escape mechanism 24, and when a plurality of sticks 2 are inserted from above between a pair of stick guide plates 21 and 22, the lowermost stage One end of Stick 2A is a shoot rail
Hook 10 and stick escape mechanism 24 at the other end
The sticks 2 are stacked in a plurality of stages by being hooked on the first link 25, which will be described later, and the bottommost stick 2A.
The electronic component 1 in the stick is ejected toward the shoot rail 10 by its own weight from the ejection port 2'provided in the.

In FIG. 2, the stick escape mechanism 24 hooks the other end of the lowermost stick 2A to the claw 26 of the first link 25, and the electronic stick 1 is discharged to empty the lowermost stick 2A. When this is detected by a detector (not shown), the rod of the air cylinder 27 moves in the direction of arrow A, the first link 25 rotates in the direction of arrow B around the pivot pin 28, and the stick 2A at the bottom stage By releasing the hook on, the empty stick 2A drops as shown by the chain line, and at the time when the first link 25 operates, the interlocking pin 29
The second link 30 responds in the direction of arrow C around the pivot pin 32 via the, and the claw 31 of the second link 30 is hooked to the other end of the stick 2B above the stick 2A, so that the stick 2B I try to prevent it from falling. Further, the rod of the air cylinder 27 operates in the direction opposite to the arrow A direction to return the first and second links 25, 30 to their original positions, so that the stick 2B in which the electronic component 1 is housed is moved to the lowermost stage. I try to hold it.

A detector for detecting the remaining number of sticks 2 on the stick holder 20 when the remaining number of sticks 2 is low.
33 are provided. As shown in FIGS. 2 and 3, the detector 33 is composed of a limit switch attached to the side plate 21, and its lever 34 detects whether or not the next stick 2B is present in the stick holder portion 20. When it detects that there is no next-stage stick 2B, it informs it via an alarm such as a buzzer or blinking light.

The component escape portion 40 is attached at an intermediate position of the chute rail 10 as shown in FIG. That is, the component escape portion 40 is a mounting plate 41 attached to the midway position of the chute rail 10 by a bolt 42, and is pivotally supported by the fulcrum pin 43 on the mounting plate 41 and extends to the transfer path position of the chute rail 10. A link member 45 provided with a stop stopper 44, an air cylinder 46 fixed to the upper part of the mounting plate 41, an air hose 47 that supplies air from an air source to the air cylinder 46, and a rod of the air cylinder 46, A pressing plate 48 provided with a pressing claw 49 for pressing the electronic component 1 next to the electronic component 1 which comes into contact with the temporary stop stopper 44 when operating, and a pressing plate 48.
Has an interlocking pin 50 for rotating the link member 45 in the clockwise direction when the is operated, the electronic component 1 sent out from the stick 2A onto the chute rail 10 is a temporary stop stopper.
The electronic component 1 is brought into contact with the chute rail 10 by abutting against the 44.
The link member 45 rotates clockwise when the pressing plate 48 is actuated by driving the air cylinder 46, and the stop stopper 44 releases the stop of the electronic component 1 that is in contact therewith. By doing so, the electronic components 1 are sequentially sent out in the carry-out direction. At that time, presser plate
A series of operations of the 48 and the link member 45 is performed by the electronic component 1 in which the hand 3 of the automatic component inserting machine is stopped by the stopper 11.
It is performed around the time of gripping.

Therefore, the air from the air source is intermittently supplied to the air cylinder 46 at appropriate intervals, and the temporary stop stopper 44
The pressing claws 49 are separated from each other with a distance corresponding to the length dimension of one electronic component 1.

The component escape section 40 is configured so that the mounting position of the mounting plate 41 with respect to the chute rail 10 and the mounting position of the holding plate 48 with respect to the air cylinder 46 can be adjusted, respectively, in order to correspond to the type of electronic component. There is.

The striking means 60 is configured to directly strike the lowermost stick 2A of the stick holder section 20 in conjunction with the operation of the component escape section 40 when it operates. That is, as the striking means 60, the striking air cylinder 62 attached to the bracket 61 fixed to the rail base 15 and the air cylinder 62 and the component escape portion 40 for supplying air to the air cylinder 62. A connecting hose 63 connected between the air hoses 47 for the air cylinder 46, and when the air cylinder 46 is driven by the supply of air, the striking air cylinder 62 is driven in conjunction with it, and its rod 62 The discharge port 2'of the lowermost stick 2A directly hits the wa. Therefore, the rod 62 'of the air cylinder 62 for striking is arranged at a position where the discharge port 2'of the stick 2A faces the arm.

Since the component supply device of the embodiment is configured as described above,
Next, this operation will be described.

When the stick 2 in which a plurality of electronic components 1 are aligned and stored is set in the stick holder portion 20, the electronic components are sent out to the chute rail 10 from the discharge port 2 ′ of the lowest stick 2 A. Each of the sent electronic components 1 slides on the chute rail 10 and the component escape portion 40
The electronic components are sent one by one in the carry-out direction by coming into contact with the temporary stop stopper 44 and staying in the midway position of the shoot tray 10 and by operating the holding plate 48 by driving the air cylinder 46.

On the other hand, when the electronic component 1 is ejected from the bottommost stick 2A, even if there is a slight step or burr in the stick 2, the electronic component 1 may be caught by the electronic component 1 and jam the components.

However, a striking means 60 for directly striking the bottom stick 2A is provided in conjunction with the operation of the holding plate 48 of the component escape section 40, and the rod 62 'of the striking air cylinder 62 of the striking means is provided.
It is possible to prevent the electronic component 1 from being jammed in the stick 2A by hitting with, and it is possible to eliminate the component jam by the impact even if the component jam occurs.

Moreover, since the air cylinder 62 hits the discharge port 2'of the stick 2A against the edge, it is possible to effectively prevent the clogging of parts particularly with respect to burrs or the like generated at the end of the discharge port 2'of the stick 2A.

Further, since the air supplied to the air cylinder 46 of the component escape section 40 is used for the striking air cylinder 62, it is not necessary to set a new air supply timing for the striking air cylinder 62. In addition, since the electronic components are replenished as soon as they are sent in the component escape section 40 by the interlocking operation of both air cylinders 46, 62, the supply of the electronic components 1 can be stabilized.

In the device of the present invention, the stick holder 2
The specific configurations of the 0, the component escape section 40, and the striking means 60 are not limited to the illustrated embodiment, and the point is that they may have desired functions.

[Effects of the Invention] As described above, according to the present invention, a chute rail installed in an inclined state and a plurality of sticks each accommodating a plurality of parts are stacked and held, and the stick sticks at the bottom of the stick discharge port. A stick holder part that discharges the parts inside the stick toward the chute rail and a part mounted in the middle of the chute rail to retain the parts sent from the stick at the bottom and to sequentially carry out the parts when operating. Since the component escape part for sending out to and the striking means capable of directly striking the bottom stick in conjunction with the operation of the component escape part are provided, it is possible to reliably prevent the clogging of parts within the stick. It has the effect of increasing reliability.

[Brief description of drawings]

FIG. 1 is an overall partially broken view showing an embodiment of the present invention, FIG. 2 is a side view showing a stick holder part, and FIG. 3 is an enlarged view showing a main part of the stick holder part. 1 ... Electronic parts, 2 ... Stick, 2 '... Ejection port,
2A ... Bottom stick, 10 ... shoot rail, 20
...... Stick holder part, 40 ...... part escape part,
60 ... Striking means, 62 ... Air cylinder for striking, 63 ... Connecting hose.

Claims (1)

[Claims] 1. A chute rail installed in an inclined state,
In the middle of the chute rail, there is a stick holder part that holds the sticks containing a plurality of parts stacked in multiple stages and discharges the parts inside the stick from the discharge port of the lowest stick toward the shoot rail by its own weight. The part escape part, which is attached to the position and retains the parts sent from the bottom stick and sends out the parts sequentially in the unloading direction, and the bottom stick in conjunction with the parts escape part's sending operation. A parts supply device for an automatic parts insertion machine, which is provided with a striking means capable of immediately striking.