JPH06227672A - Part supply device - Google Patents

Abstract

PURPOSE:To automatically carry out ejection of an empty stick and setting of a stick of a following step on a part supply and delivery position by providing a pusher to push a first step stick and to push its lower end in an insertion recessed part and an actuator to actuate a first claw, a second claw and the pusher. CONSTITUTION:When a stick 2a of a first step becomes empty, an actuator 44 works, releases the first step stick 2a by way of retreating a first claw 41, advances a second claw 42 in return and makes it hold a second step stick 2b. After the first step stick 2a falls, the actuator 44 advances the first claw 41, retreats the second claw 42 in return and drops the second step stick 2b by that time at a position on the fist step. Additionally, the actuator 44 also advances a pusher 43, and the pusher 43 pushes the stick 2b dropped at the first step position and pushes its lower end in an insertion recessed part. Consequently, it is possible to save labor of a worker and to reduce device manufacturing cost.

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 to be combined with an electronic circuit board assembling device.

[0002]

2. Description of the Related Art Sticks are one of the packaging modes for supplying components to a component mounting machine and an insertion machine. This is one in which parts are packed in a row in a rectangular tube-shaped stick, and the parts are slanted and applied to the entrance of the parts feeding shoe, and the parts are slid down and sent out. An example of a component supply device using such a stick is disclosed in Japanese Patent Laid-Open No. 34998/1992.

[0003]

In the above-described component supply device (stick feeder), in order to reduce the frequency of component replenishment, a large number of sticks are prepared in a flat stacking state, and the sticks at the bottom are arranged. When it becomes empty, the stick is ejected, and the stick of the next stage is dropped to continue the parts supply. An object of the present invention is to provide a device capable of automatically discharging an empty stick and setting a next-stage stick to a component feeding position with a single actuator.

[0004]

SUMMARY OF THE INVENTION In the present invention, a retaining channel in which the sticks are stacked flat in a tilted state receives the lower end of the first stage stick and matches it with the inlet of the component feeding shoe. A first pawl for receiving the upper end of the first stage stick and a second end for receiving the upper end of the second stage stick at the other end of the holding channel.
A claw, a pusher that pushes the lower end of the first step stick into the insertion recess, and the first claw and the second claw
A single actuator for operating the claw and pusher is provided.

[0005]

When the first stage stick becomes empty, the actuator operates. The actuator retracts the first pawl and releases the first-stage stick, and in turn replaces the second pawl to hold the second-stage stick. After the first-stage stick has fallen off, the actuator advances the first claw,
Instead, the second claw is retracted, and the second stick up to that point is dropped to the first step position. The actuator also pushes the pusher forward, pushes the stick that has fallen to the first stage position, and inserts the lower end into the recess.

[0006]

Embodiment An embodiment will be described with reference to the drawings. FIG. 1 shows the overall configuration of the component supply device 10. Due to the space, the front end and the rear end of the device are cut. A base 11 is detachably fixed to the component mounting machine or the component insertion machine. A component feeding shoe 12 is provided at the front portion of the base 11. The part feeding shout 12 is inclined forward, and as the parts are taken out one by one from the tip end, the part row in the suit is lowered by the length of one part. Reference numerals 13 and 14 denote a light emitting portion and a light receiving portion of an optical sensor which are arranged so as to sandwich the component feeding shoe 12 from above and below. As shown in FIG. The passage of the component 1 is monitored through the slits 15 and 16 provided. As a matter of course, the width of the slits 15 and 16 (the depth direction of the paper surface) is narrower than the width of the component 1, and the component 1 does not come out from there.

Reference numeral 20 denotes a shaft 2 at the rear portion of the component feeding shoe 12.
Stick holding frame connected by 1, shaft 2
It can rotate in a vertical plane with 1 as a fulcrum. A stopper bolt 22 projects from the stick holding frame 20,
On the other hand, the base 11 is provided with a horizontal handle shaft 23. A stopper 24 is provided in the middle of the handle shaft 23.
Is fixed, and when the handle shaft 23 is rotated around the axis, the stopper 24 advances into the movement locus of the stopper bolt 22 or retracts from it. When supplying the parts, the stick holding frame 20 is pulled up to a position where the angle of the stick 2 matches the angle of the part feeding shoe 12 as shown in FIG. 1, and the stopper 24 maintains the state. Turn the handle shaft 23 to stop the stopper 24.
If the stick holding frame 20 is removed horizontally from the stopper bolt 23, the stick 2 can be easily replenished.

The stick holding frame 20 comprises three parts. The first is a fulcrum block 25 connected to the component feeding shoe 12 by a shaft 21, and the second is a beam 26 extending from the fulcrum block 25. There are two beams 26 that overlap each other in the depth direction of the paper and are fixed so as to sandwich the fulcrum block 25. The third is a slide block 27 attached to the free end side of the beam 26. The position of the slide block 27 is changed according to the length of the stick 2. Therefore, an elongated hole 28 is provided in the beam 26, and a bolt 29 penetrating the elongated hole 28 is tightened at a proper position to fix the slide block 27.

Support block 25 and slide block 27
Are partly channel members 31, 32. The channel members 31, 32 face each other and the holding channel 3
Configure 0. The holding channel 30 is for holding the sticks 2 in one row in a flat stacking state, and the channel members 31 and 32 give the substance only to both ends. As shown in FIG. 5, inside the fulcrum block 25, a communication passage 33 serving as an inlet of the passage of the component feeding shoe 12.
Is provided, and on the inner wall surface of the channel member 31,
A step portion 34 that forms an eave is formed at the entrance of the communication passage 33. A movable bottom 35 is attached to the side surface of the fulcrum block 25 so as to face the step portion 34. The movable bottom 35 can be displaced by loosening the bolt 36,
Thereby, the distance from the step portion 34 can be adjusted. This step 3
4 and the movable bottom 35 form an insertion recess 37 for receiving the end of the stick 2. The corners of the stepped portion 34 are chamfered so that the end of the stick 2 fits into the smooth. Reference numeral 38 denotes a stopper bolt that stops the rotation of the stick holding frame 20 when the angle of the stick 2 matches the angle of the component feeding shoe 12.

As shown in FIG. 2, the channel member 32 has a hole 39 through which some of the components of the stick escape mechanism 40 disposed on the slide block 27 project. The width of the hole 39 (the depth direction of the paper surface) is narrower than the width of the stick 2, and the stick 2 does not enter the hole 39. The main elements of the stick escape mechanism 40 are a first pawl 41, a second pawl 42, a pusher 43, and an actuator 44. The first claw 41 is a component finished in an L-shaped cross section with a sheet metal, and its upper part is connected to the back side of the channel member 32 by a shaft 45 and swings in a vertical plane with the shaft 45 as a fulcrum. The first claw 41 is biased by the compression coil spring 46 in a posture in which the swinging end projects from the hole 39, and the swinging end supports the lowermost stick, that is, the upper end of the first-stage stick 2a. .

The second pawl 42 is supported by a lever 47 at a position facing the upper end of the second stage stick 2b. The lever 47 has a shaft 48 on the back side of the channel member 32.
, And swings in a vertical plane. The second claw 42 is a lever
It is fixed to a long hole 49 at the swing end of 47 with a bolt 50, and the position with respect to the second stage stick 2b can be adjusted by loosening the bolt 50. Reference numeral 51 is a tension coil spring that biases the lever 47 in a direction in which the second pawl 42 is retracted into the hole 39. A bolt 52 is also fixed to the lever 47, and when the lever 47 is rotated against the tension coil spring 51, it pushes the upper end of the first pawl 41 to swing the first pawl 41. Pull the end into the hole 39.

Reference numeral 53 is a rod supported by the slide block 27 so that it can slide in the axial direction of the stick 2. A pusher 43 is fixed to the end of the rod 53 so as to face the upper end of the first stage stick 2a. The pusher 43 also has a rod 53 due to the mechanism of the long hole and the bolt.
The position with respect to can be adjusted. The pusher 43 projects through the hole 54 formed in the first claw 41 together with the second claw 42.

The actuator 44 is composed of an air cylinder, and a pressing head 55 fixed to the end of the rod thereof.
Faces Lever 47. Pressing head 55 and rod 5
3 is connected to the slide block 27 by a bell crank 57 supported by a shaft 56. That is, pins 58 and 59 are planted on the side surface of the pressing head 55 and the side surface of the rod 53, and one end of the bell crank 57 is engaged with the side surface of the pin 58 facing the actuator body side. The other end of the bell crank 57 is a fork, which is a pin 59.
Sandwich. The bell crank 56 itself is urged in the clockwise direction in the drawing by the tension coil spring 59.

Reference numeral 61 in FIG. 1 denotes an empty stick receiver. The empty stick receiver 61 has a gutter shape, one end of which is connected to the base 11 by a hinge 62, and the middle leg portion 63 is connected to the base 1.
By putting it on 1, it keeps the posture inclined backward. The empty stick 2 dropped from the stick holding frame 20 falls on the empty stick receiver 61 and then slides backward. When the stick holding frame 20 is lowered horizontally, the empty stick receiver 61 is inverted in advance with the hinge 62 as a fulcrum so that the empty stick receiver 61 cannot be held by the base 11.
Leave it outside.

The operation of the component supply device 10 will be described. Figure 1
In this state, the sticks 2 are stacked in many stages in the inclined stick holding frame 20. At this time, the stick 2 has all plugs that have blocked both ends removed. In the stick escape mechanism 40, the pressing head 55 is pulled toward the main body of the actuator 44, and the bell crank 57 is the tension coil spring 6.
It is rotated counterclockwise against 0, whereby the rod 53 advances and the pusher 43 pushes the first-stage stick 2a. As a result, the lower end of the first-stage stick 2a is pushed into the insertion recess 37 and fits snugly into the communication passage 33. The component 1 in the first-stage stick 2a flows out into the component feeding shoe 12 through the communication passage 33.

The parts 1 are picked up one by one from the tip of the parts feeding shoot 12, and the last part 1 is the optical sensor 13, 1.
When passing between 4 and 4, a control device (not shown) issues an empty stick release command. Based on this command, the actuator 44 extends the rod and pushes the lever 47 with the pressing head 55 as shown in FIG. Then, the second pawl 42 enters the upper end of the second-stage stick 2b and holds it, and the bolt 52 pushes the upper end of the first pawl 41 to rotate the first pawl 41 clockwise. Swing end has hole 3
Withdraw into 9. Further, the rod 53 is pulled back, and the pusher 43 separates from the first-stage stick 2a. Therefore, there is no support for the upper end of the first-stage stick 2a, and the first-stage stick 2a rotates with the lower end as a fulcrum. Since the lower end of the first-stage stick 2a is very shallow, the lower end of the first-stage stick 2a immediately comes out of the recess 37, and the first-stage stick 2a falls onto the empty stick receiver 61. After the first-stage stick 2a falls off, the lower end of the second-stage stick 2b descends onto the movable bottom 35. Then, the actuator 44 retracts the pressing head 55. FIG. 4 shows the situation in the middle of retreat, but at this point, the swinging end of the first pawl 41 has already come out of the hole 39, and the second pawl 42 is replaced with the hole 3 at the same time.
Withdraw into 9. Therefore, the stick row goes down one paragraph, and the second-stage stick 2b comes to the first-stage position. However, at this time, the rod 53 is still in the retracted position, and the pusher 43 is separated from the second stage stick 2b. The pressing head 55 retracts further, and the bell crank 57
When the rod is rotated, the rod 53 is pushed out, and the pusher 4
3 pushes the second stage stick 2b that has descended to the first stage position, and pushes the lower end thereof into the insertion recess 37.

[0017]

According to the present invention, discharge of an empty stick and setting of the next-stage stick are automatically performed, and the labor of the operator can be saved. Further, since these operations are realized by a single actuator, the manufacturing cost of the device can be reduced.

[Brief description of drawings]

FIG. 1 is a side view of a component supply device.

FIG. 2 is a partially enlarged cross-sectional view showing a configuration of a main part.

3 is a partially enlarged sectional view of the same portion as FIG.
And an operating state different from that of FIG.

4 is a partially enlarged sectional view of the same portion as FIG.
3 shows an operation state different from that of FIG.

FIG. 5 is a partially enlarged cross-sectional view showing the configuration of another main part.

6 is a partially enlarged sectional view of the same portion as FIG.
And an operating state different from that of FIG.

7 is a partially enlarged sectional view of the same portion as FIG.
7 shows an operation state different from that of FIG.

[Explanation of symbols]

 1 Component 2 Stick 10 Component Supply Device 12 Component Feeding Shoot 30 Holding Channel 37 Inserting Recess 41 First Claw 42 Second Claw 43 Pusher 44 Actuator

Claims (1)

[Claims] 1. A stick in which parts are stored is stacked flat in a holding channel in an inclined state, and a lower end of a lowermost first-stage stick is aligned with an inlet of a parts feeding shoe, and a first-stage stick is attached. What is claimed is: 1. A component supply device for ejecting an empty stick to the outside of a holding channel after sliding down a component in the stick, comprising the following configuration. a. A bayonet recess formed in the retention channel to receive the lower end of the first stage stick and to match it with the inlet of the component feed shoe. b. The first claw that receives the upper end of the first stage stick. c. A second pawl that receives the upper end of the second stage stick. d. The first claw is retracted to release the first stage stick, the second claw is advanced to hold the second stage stick, and the first claw is advanced after the first stage stick is dropped, Actuator that retracts the 2nd claw and drops the 2nd stage stick up to that point to the 1st stage position. e. Firstly, it is operated by the actuator.
Pusher that pushes the stick that has fallen to the step position and pushes the lower end into the insertion recess.