JPS5837226B2 - feeding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a supply device that aligns pin-shaped small parts and arranges a large number of them at predetermined positions in a short time.

This type of supply device is used, for example, when supplying pins to a device for planting rubbing pins on a printed circuit board.

Usually, around 100 pins are planted on such a board, but for the above-mentioned device, it is necessary to supply these pins to the planting position as quickly and reliably as possible. It must not be.

In other words, with these many pins, one pin is installed at each predetermined location on one board, so it is possible to ensure that one pin is placed at each predetermined location. The time it takes to set up and place it in all of its locations is extremely short;
Moreover, once this is completed, the supply must be stopped until a new board is placed.

Therefore, simply feeding from a vibration type parts feeder cannot satisfy these conditions.

The present invention provides a supply device that meets the above conditions.

Hereinafter, the present invention will be explained with reference to illustrated embodiments.

In Fig. 1, A1 and A2 are vibration type parts feeders, and the parts shown in Figs.
The pin E shown in the figure is supplied continuously.

The supply device C receives this pin E for each receiving vinyl tube BA, and supplies 10 reversed vinyl tubes BB in total, 10.
Supply one bottle for each of the 0 pieces.

D is the pin planting device part on the printed circuit board.

Hereinafter, the above-mentioned supply device C will be explained in detail with reference to FIGS. 2 to 6.

In Fig. 3, 1 is a base to which other parts are attached, including 10 NIGEANA 1a and 100 NIGEANA 1a.
b, and furthermore, ten nozzle guides 1c are fixed to positions close to each of the nigeanas 1a, and a guide plate 1d is also fixed thereto.

2 is attached to the nozzle guide 1c so that it can slide freely left and right, and is biased to the right by a spring 3.
The above-mentioned left and right slides are performed in the Nigeana 1a using a receiving nozzle to which the end of the receiving vinyl tube BA is attached.

4 is a pin plunger that is integrally linked to the left and right operation of the receiving nozzle 2, and is engaged at the end with the alarm par 5 shown in FIG.

In FIG. 4, the above-mentioned alarm par 5 is supported at one end by a bar guide 6 fixed to the base 1 so as to be able to slide up and down, and the other end is fixed to a switch rod 7.

The switch rod 7 is attached to the base 1 so as to be freely movable in the vertical direction, and is given the ability to rise by a spring 8, thereby giving the alarm par 5 the habit of rising in a parallel state.

A switch actuating piece 7a is also fixed to the switch rod 7, and when the switch rod 7 descends against the spring 8,
The abnormality detection switch 9 is activated.

When the abnormality detection switch 9 is activated, it issues an alarm through an alarm circuit (not shown) and also stops the operations of the parts feeders A1, A2 and/or the supply device C.

In FIG. 3, the base 1 includes a gear 10a and 10 shirt holes 10 arranged at a constant pitch.
A shaft shaft 10 having an angle θ is attached so that it can slide left and right and rotate freely, and this shaft shaft 10b is tilted at an angle θ with respect to the vertical direction of the base 1 as shown in FIG. It is established that

As shown in FIG. 2, the above-mentioned receiving nozzle 2 is also attached so as to have an inclination of this angle θ, so that in this state the receiving nozzle 2 and the shirt hole 10b are aligned and cannot be penetrated. in a state.

11 is a delivery nozzle, which is provided at the same pitch as the shirt star hole 10b as shown in FIG. 3; however, since it is provided perpendicularly to the base 1 as shown in FIG.
It is blocked from the shirt hole 10b.

Reference numeral 12 denotes a cover plate that can limit the stroke of the shaft shaft 10 when moving leftward.

13 shown in FIG. 6 is fixed to the slide iron 14 so that its cross-sectional shape is shown in FIG.
The rack gears mesh with the gears 10a of the shirt shaft 10 described above, and are connected to the piston rod 15a of the air cylinder 15 via the slide rod 14 described above, thereby sliding left and right within the guide plate 1d. The shaft shaft 10 meshing with the shaft shaft 10a is rotated by an angle θ, and posture control is performed so that the shaft shaft 10b communicates with either the receiving nozzle 2 or the sending nozzle 11 shown in FIG.

In FIG. 4, a switch knob 14a is installed on the slide rod 14 described above, and the operation when the slide rod 14 moves to the left is transmitted to the operation detection switch 16.

Reference numerals 17 and 18 are stoppers for regulating the positions of the slide rod 14 when moving leftward and when moving rightward, respectively, so that the shirtter hole 10b shown in FIG.
and is adjusted to communicate with the delivery nozzle 11.

In FIG. 3, reference numeral 19 denotes a feed motor whose operation is controlled by a control circuit (not shown) to rotate a screw shaft 20 having a threaded portion on its outer periphery, and to drive a shaft slider 21 which is screwed into the screw shaft 20. Move left or right.

As shown in FIGS. 4 and 6, the shirtter slider 21 holds the end of the shirtter shaft 10 in a rotatable manner and is fixed to the base 1 by means of guide rods 22, 23, which are connected to the screws described above. The operation is guided by the shaft 20.

The amount of movement of the shirt slider 21 in the left and right directions in FIG.
The value is set to be appropriate for sending by the pitch.

In FIG. 5, 24 is a switch iron which is integrally attached to the shirt slider 21 and has switch operating pieces 24a and 24b, which actuates the overrun A detection switch 25 and the overrun R detection switch 26.

The detection switches 24 and 25 check whether the shirt slider 21 is moving too far forward or backward, respectively.
When activated, a warning is issued by an alarm circuit (not shown) and the operations of the parts feeder A1A2 and/or the supply device C are stopped.

The above-mentioned overrun of the shirt slider 21 may occur when noise occurs in the signal from the circuit that controls the operation of the feed motor 19 and an error occurs in the number of times the feed motor 19 operates. In this case, overrun detection switches A and R are activated.

Based on the above configuration, its operation will be explained below.

In Fig. 1, a total of 10 receiving vinyl tubes BA, 5 each from known parts feeders A1 and A2, are received.
2 and 3.
As shown in the figure, pin E is connected to the receiving vinyl tube BA
The shaft passes through the receiving nozzle 2, and further passes through this to reach the shaft hole 10b of the shaft shaft 10, but as shown in FIG. Since it is shifted, it remains within this shirt star IQb.

The pin E inserted into the shirt star hole 10b has its end protruding outside the shaft 10 and outside the receiving nozzle 2, so it is normally caught when the shirt star shaft 10 operates. However, if the pin E is defective and its length is not normal, or if it stops halfway inside the shirt hole 10b due to dirt, etc., it will get caught. The operation will be described later.

As described above, for each of the ten shirt star shafts 10 shown in FIG. 2, the ten shirt star holes 10b provided for one shirt star shaft 10 as shown in FIG. The pins E are loaded all at once to the leftmost one.

Thereafter, the screw shaft 20 is moved by the feed motor 19.
rotates intermittently, slides the shirt slider 21 to the left through its screw engagement, stops the shirt shaft 10 every pitch of the shirt shaft 10b, and when all the pins E have been loaded, the feed motor 19 The piston rod 15a of the cylinder 15 moves to the right until it is stopped by the stopper 17 as shown in FIG. Activate.

The piston rod 15a shown in FIG.
When the slide rod 14, which is integrally connected with the slide rod 14, slides to the left until it is stopped by the stopper 17, the rack gear 13 that is engaged with each of the gears 10a of the ten shirt shafts 10 is moved. Since it moves to the left accordingly, the shaft 1 of the JO book
0 rotates to the left at the same time.

As a result of the above, the shutter shaft 10 rotates to the right at an angle θ in FIG. From the delivery nozzle 11
It passes through to the vinyl tube BB, reaches the pin planting device part D, and is planted.

When the pin E is sent out as described above, the operation detection switch 16 is activated by the switch knob 14a as described above, so the control circuit (not shown) that receives this signal activates the feed motor 19. Pass the shaft shaft 10 through the shaft shaft hole 10b to the hole 1b.
3, slide it to the right in FIG. 3 so that the leftmost shirt hole 10b is aligned with the rightmost hole 1b.

Through a series of control operations that follow, the piston rod 15a is then actuated to the left in FIG. In the figure, the left rotation of the angle θ is performed, and the shaft hole 1
Align 0b with receiving nozzle 2.

The next pin E, which was waiting in the receiving nozzle 2, thereby slides into the shirt hole 10b, becomes the state at the beginning of the explanation, and the above operation is repeated thereafter.

If the feeding operation of pin E is performed under normal conditions, the above operation will be performed, but in the unlikely event that pins of different lengths are mixed together, the feeding operation will not destroy the device. 《It will be stopped.

The operation will be explained below.

In FIG. 2, if the pin E loaded in the shirtter hole 10b is too long, its end remains in the receiving nozzle 2, and if it is too short, the next pin E is inserted into the shirtter hole 10b. In either case, the receiving nozzle 2 and the shutter shaft 10 are in a connected state.

In this state, when the feed remoter 19 slides the shaft starter shaft 10 to the left in FIG.
The receiving nozzle 2, which is connected via the receiving nozzle 2, is also followed to the left and is moved against the spring 3.

As a result, the pin plunger 4 is also pushed out to the left,
The alarm par 5 is moved to the left within the bar guide 6.

In FIG. 4, the alarm par 5 is translated downward and the integrated switch rod 7 is lowered.

The switch rod 7 thereby operates the abnormality detection switch 9 with the switch piece 7a, and parts feeders A1,
A2, the operation of predetermined parts such as the feed motor 19 is stopped, and an alarm is issued.

If an abnormality occurs, such as if the length of pin E is not the correct length, or if pin E is caught in the middle due to dust in the shirt hole 10b, an alarm will be issued as described above. However, other causes of malfunction of the feeding device C include electrical noise due to the influence of relays and other operations, which disturbs the count of the operation of the feed motor 19, causing the shutter shaft 10 to move to the left or right in FIG. 3. When operating the slide, there may be an attempt to feed more than the number of shirt holes 10.

In such a case, as shown in FIG. 5, overrun A detection switch 25 or overrun R detection switch 2
6 is actuated by the switch actuating piece 24a or 24b of the switch rod 24 which is actuated integrally with the shutter shaft 10, and is actuated in the same manner as the abnormality detection switch 16.

When an alarm is issued as described above, the operator confirms the cause and takes necessary measures to restore normal operation.

According to the present invention, since the pins E aligned by the parts feeders A1 and A2 and continuously sent out are supplied to each delivery nozzle one by one, it is possible to control the portion and quantity to be supplied. It will be done.

According to the present invention, the aligned pins E are stored in the vinyl tube BA, and the pins E are stored in the vinyl tube BA, and the pins E are stored in the vinyl tube BA.
After distributing one pin E into each of the plurality of shirt holes 10b, the pins E are simultaneously supplied to any predetermined location via the delivery nozzle 11, so it is possible to deliver the pins E to many locations at the same time. This has the effect of prompt supply.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a front view showing the entire device in which an embodiment of the present invention is assembled, Fig. 2 is a partially cutaway front view showing main parts of the embodiment of the present invention, Figure 3 is a sectional view of the part indicated by the arrow in Figure 2, Figure 4 is a plan view of Figure 2, Figure 5 is the overrun A,
2 is a right side view for explaining the arrangement and operation of the R detection switches 25 and 260, and FIG. 6 is a rear view of FIG. 2. A1, A2...Parts feeder, BA...
...Incoming vinyl tube, BB...Outgoing vinyl tube, C...Supplying device, 1...
...Base, 1a... Nigeana, 1b...
... Street announcer, 1c... Nozzle guide, 1d
...Guide plate, 2...Receiving nozzle, 4...Pin plunger 5...
Alarm par 6...Bar guide, 7...
...Switch rod, 7a...Switch actuation piece, 9...Abnormality detection switch, 10...
Shaftshaft}, 10a...Gear, 10b.
...Shuttle hole, 11 ... Delivery nozzle, 12 ... Cover plate, 13 ...
・Ratsukuga, 14...Slide Rod, 14
a...Switch knock, 15...Cylinder, 15a...Piston rod, 16...
...Operation detection switch, 17, 1B...Stopper, 19...Feed motor, 20...
...Screw shaft, 21...Shutter slider, 22, 23...Guide rod, 24
...Switch rod, 24a, 24b...
... Switch operation piece, 25 ... Overrun A detection switch, 26 ... Overrun R detection switch.

Claims (1)

[Scope of Claims] 1. A shaft shaft 10 in which a plurality of shaft shaft holes 10b passing through the shaft in a direction perpendicular to the axis are arranged at a constant pitch; a base 1 which is held so as to be able to operate in the direction and rotational direction; and a plurality of receiving nozzles 2 and 2, each of which is attached to the pace 1 with the same pitch as the above-described shirt hole 10b and allows pin-shaped small parts to pass therethrough. The above-mentioned receiving nozzle comprises: a sending nozzle 11; a means for rotating each of the plurality of shaft shafts 10 by an angle θ in the rotational direction and a means for operating each of the shaft shafts 10 in the axial direction at the same pitch as the shaft shaft 10b; 2 and the delivery nozzle 11, one of which is provided at a position facing the shirtter hole 10b, and the other is switched so as to face the shirtter hole 10b by rotating the shirtter shaft 10 by an angle θ. It becomes. Feeding device.