KR100658480B1 - Work conveyance and discharge system - Google Patents

Abstract

An object of this invention is to provide the workpiece conveyance discharge system which can discharge a workpiece | work appropriately, without damaging the workpiece conveyed by a workpiece conveyance apparatus, and inhaling an indefinite workpiece | work.

The workpiece conveyance discharging system includes a conveying table 1 having a work storing groove 3, a spray hole 4a provided at one side of the conveying table 1, and the other side of the conveying table 1. The fixed discharge pipe 8 provided in the) is provided. The movable discharge head 10 is provided between the conveyance table 1 and the fixed discharge pipe 8. The movable discharge head 10 is pressed to the conveyance table 1 side by the leaf spring 11b.

Work piece, work return discharge system, return table, fixed discharge pipe

Description

WORK CONVEYANCE AND DISCHARGE SYSTEM}

1 is a view showing an embodiment of a workpiece conveyance discharge system according to the present invention.

2 is a plan view of the movable discharge head;

3 is a side cross-sectional view of the workpiece conveyance discharging system.

4 shows a work piece.

5 is a view showing the action of the workpiece conveyance discharge system according to the present invention.

6 is a view showing a modification of the workpiece conveyance discharging system according to the present invention.

7 is a view showing another modified example of the workpiece conveyance discharging system according to the present invention;

8 is a view showing a conventional work discharge device.

Explanation of symbols on the main parts of the drawings

1: bounce table

2: base

3: work storage groove

4: air piping hole

4a: spray hole

5: air piping

6: guide

7: tube sheet

8: fixed exhaust pipe

9: discharge hose

10: movable discharge head

1Oa: discharge hole

11: leaf spring

12: prop

w: walk

This invention relates to the workpiece conveyance discharge system which accommodates and conveys a chip-shaped electronic component (henceforth a workpiece | work) to the workpiece accommodating part of a workpiece conveyance apparatus, and discharges a workpiece | work from a workpiece | work introduction tube by a workpiece | work discharge apparatus after that.

Conventionally, the workpiece conveyance discharge system of an electronic component (work) is known (for example, refer patent document 1 and 2). According to these patent documents 1 and 2, a workpiece is accommodated in the workpiece storage part of the disk-shaped table which rotates intermittently, the characteristic is measured during conveyance, the workpiece is sorted based on the result, and it is compressed by each sorting chute. The work is discharged using air. Next, the conventional workpiece | work discharge apparatus is demonstrated with reference to FIG.

In FIG. 8, the workpiece | work w is accommodated in the workpiece storage part (work storage groove | channel) 3 of the conveyance table 1 which intermittently rotates on the base 2 surface, and is conveyed. In the meantime, the characteristic test | inspection is performed with respect to the workpiece | work w by test | inspection means (not shown), and the compressed air blown from the injection hole 4a in the discharge part 25 provided corresponding to the characteristic of the workpiece | work w ( Work w is discharged | emitted in the discharge pipe 21 by air, and is accommodated in the workpiece accommodating box via the discharge hose 22.

Between at least one end of the discharge pipe 21 and the conveying table 1, the work w protruding from the work receiving groove 3 does not interfere with the discharge pipe 21 and be damaged. A gap ra with a length dimension or more is provided.

When compressed air is injected into the workpiece accommodating groove 3 from the injection hole 4a for discharging the workpiece w, between the discharge pipe 21 and the conveyance table 1 by air injection into the discharge pipe 21. The gap ra is decompressed by the so-called ejector effect, and the surrounding air is sucked into the discharge pipe 21 by the ejector effect.

At this time, when the workpiece | work W which is not accommodated in the workpiece storage groove 3 of the conveyance table 1 stays, or when the conveyance table 1 is used in the state close to a perpendicular | vertical, the gap ra periphery may occur by scattering, falling, etc. The work w may exist in some cases. These workpieces w are sucked into the discharge pipe 21 together with air by the ejector effect, and may be mixed into the predetermined workpieces w sorted.

This problem occurs more frequently due to the shape of the workpiece w. In other words, among the chip-shaped electronic components, the workpiece (w) such as a resistor or a capacitor has a rectangular parallelepiped such as 1608 (length 1.6mm, 0.8mm angle), 1005 (length 1.0mm, 0.5mm angle) ..... It is difficult to enter from the gap ra because it has a L / a = 2) shape, and since the material is also ceramics, it is heavy and often falls without being sucked (see FIG. 4A).

On the other hand, in the workpiece | work w, such as a chip | tip LED (light emitting element), for example, although b is about l / 2 with respect to length l, c dimension is thin as c = l / 2-l / 4, In addition, since the electrode 18 has a sharp shape, it is easy to enter from the gap ra, and the material is also easy to be sucked into the air inflow from the gap ra because the resin (for example, bakelite) is light in mainstream. 4 (b)).

In addition, in the case of the asymmetric workpiece w as shown in FIG. 4B, the workpiece w is discharged due to collision with the inner wall of the discharge pipe 21 without going straight without flying straight. In some cases, there is also a problem of leaking from the gap ra and falling.

As mentioned above, although the gap ra between the conveying table 1 and the discharge pipe 21 is small, it is preferable, but when the workpiece | work w is LED, the error of the length dimension l is large, and when the length dimension l is long, at the time of conveyance, In some cases, the discharge pipe 21 and the work w interfere with each other to cause damage to the work w.

[Patent Document 1] Japanese Utility Model Publication Publication No. 56-39222

[Patent Document 2] Japanese Utility Model Publication Publication No. 60-13292

As mentioned above, in the conventional workpiece | work discharge apparatus, various problems arise with respect to discharge | release of a workpiece | work as the gap ra is formed between a discharge table and a discharge pipe.

The present invention has been made in view of this point, and when the workpiece is discharged by compressed air, the workpiece conveyance discharge does not occur due to the ejector effect of suction, and does not damage the workpiece protruding from the workpiece storage portion. It is an object to provide a system.

The present invention has a work conveying apparatus having a work receiving portion for storing a work, a work discharging apparatus provided on one side of the work conveying apparatus and discharging the work in the work storing portion to the outside, and the other side of the work conveying apparatus. Iv) outside the workpiece discharging device, which is provided opposite the workpiece discharging device and guides the workpiece in the workpiece storage portion discharged by the workpiece discharging device, and is movably installed between the workpiece conveying device and the workpiece introducing pipe. And a pressurizing device for pressurizing the work discharge head having a hole and the work discharge head toward the work conveying device side.

This invention is a workpiece conveyance discharge system characterized by the workpiece conveyance apparatus consisting of the circular conveyance table which has the several workpiece accommodating part which consists of the recessed part opened to the outer periphery.

The workpiece conveyance apparatus is a workpiece conveyance discharge system characterized by the circular conveyance table which has the several workpiece accommodating part which consists of a through hole in the outer periphery vicinity.

This invention is a workpiece conveyance system characterized by the workpiece conveyance apparatus which consists of an endless belt, Comprising: The several workpiece accommodating part which consists of recessed parts opened outward by the side edge of an endless belt is provided.

This invention is a workpiece conveyance system in which the workpiece conveyance apparatus consists of an endless belt, and the several workpiece accommodating part which consists of a through hole is provided in the vicinity of the side edge of an endless belt.

This invention is a workpiece conveyance discharge system characterized by the workpiece discharge apparatus having the injection hole which injects compressed air.

This invention is a workpiece conveyance discharge system in which the workpiece discharge head is inserted in the edge part of a workpiece | tube introduction tube.

According to the present invention, the work discharge head has a work discharge hole that is substantially perpendicular to and passes through the conveying table surface, and the conveying table side end portion is substantially parallel to the conveying table. It is a work conveyance discharge system characterized by the taper surface which inclines from the conveyance table side edge part in the outer periphery.

This invention is provided with the guide which contact | connects the conveyance table side edge part of a workpiece | work discharge head on the outer side of a conveyance table, and defines the clearance gap between the conveyance table side edge part of this workpiece | work discharge head and a conveyance table, The workpiece conveyance characterized by the above-mentioned. Exhaust system.

According to the present invention, the work discharge head has a work discharge hole perpendicular to the conveying table surface and penetrated therein, the endless belt side end portion being substantially parallel to the endless belt, and the outer periphery of the endless belt side end portion of the work discharge head. It is a workpiece conveyance discharging system characterized by the taper surface which inclines from an endless belt side end part.

This invention is provided with the outer side of an endless belt in contact with the endless belt side edge part of the workpiece | work discharge head, and the guide which defines the clearance gap between the endless belt side edge part of this workpiece | work discharge head and an endless belt was provided, The workpiece conveyance characterized by the above-mentioned. Exhaust system.

This invention is a workpiece conveyance discharging system characterized by the pressurization apparatus consisting of a leaf spring.

This invention is a workpiece conveyance discharge system characterized by the pressurization apparatus consisting of a coil spring.

According to the present invention, by pressing the work discharge head to the work conveying device side by the pressurizing device, when the work passes through the work protruding from the work receiving portion, the discharge head is retracted from the work conveying device by the work itself to discharge the work. The gap between the head and the work conveying device is enlarged. After the workpiece has passed, the discharge head is again pressed by the pressurizing device to the work conveying device side to return promptly to keep the gap narrow.

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 5. 1 (a) is a cross-sectional view showing an embodiment of the present invention, FIG. 1 (b) is a view showing a conveying table which is one of the work conveying devices, and FIG. 2 is a main portion showing the work discharge head. It is a front view, FIG. 3 is a side sectional drawing which shows a workpiece discharge head, FIG.4 (a) is a figure which shows the workpiece | work which is general chip-shaped electronic components, such as a resistor and a capacitor, and FIG.4 (b) is an asymmetry of LED etc. It is a figure which shows a workpiece.

As shown in FIG. 1, the workpiece conveyance discharging system includes a base 2 and a plurality of workpiece accommodating grooves (work accommodating part 3) that are intermittently rotatable on the base 2 to accommodate the workpiece w. ) Is provided in the circular conveyance table (work conveying apparatus) 1 and the base 2 and the injection hole 4a which discharges the workpiece | work w in the workpiece storing groove 3 of the conveying table 1 to the outside. ) And a fixed discharge pipe (work that is provided on the outside of the conveying table 1 to face the injection hole 4a and guides the workpiece w in the workpiece storage groove 3 discharged by the injection hole 4a). Introduction tube) (8).

Among these, each work receiving groove 3 provided in the conveyance table 1 is provided at predetermined intervals so as to open outward on the outer periphery of the conveyance table 1. Moreover, the injection hole 4a provided in the base 2 is located in one side of the conveyance table 1, and the fixed discharge pipe 8 opposes the injection hole 4a and the other side of the conveyance table 1. It is located in (他 側). In addition, the workpiece | work w accommodated in the several workpiece storage groove | channel 3 provided in the outer periphery of the conveyance table 1 is in the vacuum suction hole (not shown) extended in the direction orthogonal to the surface in FIG. It is conveyed while being sucked and maintained by.

The injection hole 4a penetrates the base 2, and is provided in multiple numbers corresponding to the workpiece accommodating groove 3 of the workpiece discharge part 15 in which the conveyance table 1 stops intermittently. Each injection hole 4a communicates with a compressed air control means (not shown) by the air pipe 5 connected to the air pipe hole 4, and the injection hole 4a is connected by this compressed air control means. Air injection control is performed. Moreover, the fixed discharge pipe 8 is provided corresponding to each injection hole 4a, and is substantially perpendicular | vertical to the surface of the conveyance table 1, and penetrated between each fixed discharge pipe 8 and the conveyance table 1, respectively. A movable discharge head (work discharge head) 10 having a discharge hole (work discharge hole) 10a is provided to be movable toward the conveying table 1.

The fixed discharge pipe 8 is fixed by a tube plate 7. Further, each movable discharge head 10 has a pressurizing device for pressing the movable discharge head 10 to the conveying table 1 side with a slight pressing force, for example, a very thin leaf spring as shown in FIGS. It is supported by the tube board 7 so that it can swing. That is, the movable discharge head 10 is installed in one end of the leaf spring 11, and the other end of the leaf spring 11 is installed opposite the conveying table 1 by the support 12. It is fixed to the tube plate 7.

Each fixed discharge pipe 8 is installed through the tube plate 7, and corresponding movable discharge heads 10 are inserted in the non-contact state, respectively, at the ends of the conveying table 1 side of each fixed discharge pipe 8, Each fixed discharge pipe 8 is communicated with the workpiece accommodation box (not shown) by the discharge hose 9 connected to the other end.

Moreover, the workpiece discharge | release apparatus is comprised by the injection hole 4a, the air piping hole 4, and the air piping 5. As shown in FIG.

As shown in FIG. 3, on the base 2, the guide 6 is provided along the outer side of the conveyance table 1. As shown in FIG. This guide 6 is in contact with the conveyance table side end part 10b which is connected to the discharge hole 10a of the movable discharge head 10, and the guide 6 is attached to the conveyance table side end part 10b. By contacting, a gap (gap) is formed between the conveying table side end part 10b of the discharge hole 10a and the conveying table 1.

The movable discharge head 10 forms the cylindrical shape which has the discharge hole 100a, and the tapered surface 100c which inclines from this edge 10b is formed around the conveyance table side edge 10b.

Next, the operation of the present embodiment having such a configuration will be described. First, the workpiece | work w accommodated in the workpiece storage groove 3 of the conveyance table 1 is conveyed sequentially, and is transmitted to the workpiece discharge part 15 while the conveyance table 1 rotates intermittently. In the meantime, necessary electrical characteristics are measured about the workpiece | work w accommodated in the workpiece storage groove 3 of the conveyance table 1, and the workpiece | work w is measured by the workpiece discharge part 15 according to the measurement result of this electrical characteristic. ) Is discharged.

That is, when the workpiece | work w accommodated in the workpiece storage groove 3 of the conveyance table 1 reaches | attains the workpiece | work discharge part 15, compressed air is sprayed with respect to the workpiece | work w from the injection hole 4a. At this time, the workpiece w in the workpiece storage groove 3 is transmitted to the fixed discharge pipe 8 through the discharge hole 10a of the movable discharge head 10 by the compressed air from the workpiece discharge device. (w) is then transferred from the discharge hose 9 to a work receiving box (not shown).

In this case, the workpiece w is transmitted from the desired fixed discharge pipe 8 to the predetermined work receiving box via the discharge hose 9 according to the measurement result of the electrical characteristic.

Next, the action of discharging the workpiece w in the workpiece discharge portion 15 will be described in detail. As the workpiece | work w which is a chip-shaped electronic component, the workpiece | work w which has a rectangular parallelepiped or plate shape like a resistor, a capacitor | condenser, etc. which are shown to Fig.4 (a), and an asymmetric type like an LED etc. which are shown to FIG. One work w is considered.

Here, when the asymmetrical workpiece w is accommodated in the workpiece accommodating groove 3 and this workpiece w is scattered by the air injection from the injection hole 4a, the workpiece w does not go straight and is discharged. In some cases, a complicated movement may be caused by hitting the wall surface of the discharge hole 100a of the head 10. In this case, if the gap ra between the conveyance table 1 and the discharge pipe 21 is wide as in the conventional example, there is a possibility that the scattered work w leaks out of the gap ra and falls out of the discharge pipe 21.

On the other hand, in this invention, as shown in FIG. 3, the gap r between the conveyance table 1 and the movable discharge head 10 is set narrower than any dimension of the length, the side, and the height of the workpiece | work w. For this reason, even if the movement of the workpiece | work w scattered from the workpiece accommodation groove | channel 3 by the air injected by the injection hole 4a is complicated, the inflow of external air from the gap r by the ejector effect will also be added, w) can be reliably guided into the discharge hole 10a of the movable discharge head 10, and can be accommodated in a storage box (not shown) via the discharge hose 9.

In addition, even if an ejector effect is caused by air injection from the injection hole 4a, the gap r is smaller than any of the dimensions of the workpiece w, so that the workpiece w outside the movable discharge head 10 is moved into the movable discharge head 10. There is no incoming, therefore, only the workpiece w correctly sorted is discharged from the movable discharge head 10.

When the workpiece w protruding from the workpiece storage groove 3 is conveyed (FIG. 5A), the movable discharge head 10 is resisted against the slight pressing force of the leaf spring 11 in accordance with the movement of the workpiece w. ) Is pushed back to the fixed discharge pipe 8 side to enlarge the gap r. Thereby, the workpiece | work w can pass through without damaging the movable discharge head 10 (FIG. 5 (b)).

In this case, the workpiece w abuts against the tapered surface 10c and can push the movable discharge head 10 to the fixed discharge pipe 8 side flexibly.

When the workpiece | work w passes through the taper surface 100c of the movable discharge head 10, the workpiece | work w will slide into the discharge hole 100a after sliding the conveyance table side edge part 10b.

At this time, the movable discharge head 100 is returned to the original position by the leaf spring 11, and the gap r is kept at the minimum value (Fig. 5 (c)).

In addition, the workpiece | work w may be the case of the asymmetrical workpiece | work w (FIG. 4 (b)), and is a rectangular parallelepiped or plate-shaped general workpiece w shown in (a) of FIG. It may be.

Moreover, although the example which used the very thin leaf spring 11 as a pressurization apparatus was demonstrated, other means, such as a coil spring (spring) and other elastic bodies, can also be used, if a slight pressing force and reliable restoration are possible.

That is, as shown in FIG. 6, the movable discharge head 10 is movably provided in the fixed discharge pipe 8, and between the fixed discharge pipe 8 and the flange 10d of the movable discharge head 10. The coil spring 19 can be provided and the movable discharge head 10 can be pressurized by the coil spring 19 to the conveyance table 1 side. In FIG. 6, the movable discharge head 10 abuts against the guide 6, and a gap r is formed between the movable discharge head 10 and the conveyance table 1.

In addition, although the movable discharge head 10 was demonstrated as cylindrical shape, if the passage surface of the workpiece | work w is made into a plane, a square tube shape may be sufficient.

In addition, although the example which used the conveyance table 1 which has the some workpiece accommodating groove 3 which consists of the recessed part opened outward as a workpiece conveyance apparatus was shown, it is not limited to this, Comprising: The through-hole 30 consists of the periphery vicinity. The conveyance table 1 which has several workpiece storage part can also be used (FIG. 7 (a)). In addition, a belt 31 having a plurality of work receiving grooves 32 formed of concave portions opened outward from both edges may be used as the work conveying device (FIG. 7B), and a through hole ( It is also possible to use a belt 31 having a plurality of work receiving portions made of 33).

Moreover, the belt 31 which has the workpiece accommodating part which consists of the through-hole 33 used as a workpiece conveyance apparatus may be an endless belt.

On the other hand, in each of the above embodiments, it is preferable that there is a slight gap between the fixed discharge pipe 8 and the movable discharge head 10 for the movable discharge head 10 to run smoothly. By providing a small gap between the fixed discharge pipe 8 and the movable discharge head 10 in this way, even if air is injected from the injection hole 4a, air is introduced from this gap, so that the suction force from the gap r is suppressed. The flow of air from the gap r can be suppressed and the work w can be stably guided to the movable discharge head 100 side.

As described above, according to the present invention, since the movable work discharge head pressurized to the work conveying device side by the pressing device is provided between the work conveying device and the work introduction tube, even if the work protrudes from the work storing portion of the work conveying device. The work discharge head can be pushed back to the work introduction pipe side and does not damage the work. In addition, the gap between the work conveying device and the work discharge head can be reduced to prevent the work from being mixed into the work introduction pipe from the outside.

Claims (13)

A workpiece conveying apparatus having a workpiece storing portion for storing a workpiece, A work discharging device provided on one side of the work conveying device and discharging the work in the work storage unit to the outside; A work introduction pipe provided on the outside of the other side of the work conveying device so as to face the work in the work storage part discharged by the work discharging device and opposed to the work discharging device; A work discharge head movably provided between the work conveying device and the work introduction pipe and having a work discharge hole; And a pressurizing device for pressurizing the work discharge head toward the work conveying device side. The method of claim 1, The said workpiece conveyance apparatus consists of a circular conveyance table which has a some workpiece accommodating part which consists of recessed parts opened outward on the outer periphery, The workpiece conveyance discharge system characterized by the above-mentioned. The method of claim 1, The said workpiece conveyance apparatus consists of a circular conveyance table which has the several workpiece accommodating part which consists of a through hole in the outer periphery vicinity, The workpiece conveyance discharge system characterized by the above-mentioned. The method of claim 1, The said workpiece conveyance apparatus consists of an endless belt, Comprising: The workpiece conveyance discharge system characterized by the several workpiece accommodating part which consists of the recessed part opened to the outer side at the side edge of an endless belt. The method of claim 1, The said workpiece conveyance apparatus consists of an endless belt, Comprising: The workpiece conveyance discharge system characterized by the some workpiece accommodating part which consists of through-holes provided in the vicinity of the side edge of an endless belt. The method of claim 1, And said workpiece discharging device has an injection hole for injecting compressed air. The method of claim 1, And said workpiece discharge head is inserted into an end portion of a workpiece introduction pipe. The method of claim 2 or 3, The work discharge head has a work discharge hole that is substantially perpendicular to the conveying table surface and penetrates therein, and the conveying table side end portion is substantially parallel to the conveying table, and on the outer periphery of the conveying table side end portion of the work discharge head. A tapered surface that is inclined from an end portion of the conveying table side is provided. The method of claim 8, The work conveyance discharge | release which installed the guide which abuts on the conveyance table side edge part of the workpiece discharge head, and determines the clearance gap between the conveyance table side edge part and the conveyance table of the said workpiece discharge head outside the said conveyance table. system. The method according to claim 4 or 5, The work discharge head has a work discharge hole perpendicular to the conveying table surface and penetrated therein, the endless belt side end portion being substantially parallel to the endless belt, and endless on the outer circumference of the endless belt side end portion of the work discharge head. A tapered surface inclined from an end of the belt side is provided. The method of claim 10, A work conveying and discharging system, wherein a guide is provided outside the endless belt to contact an endless belt side end of the work discharging head to define a gap between the endless belt side end of the work discharging head and the endless belt. The method of claim 1, And the pressurizing device comprises a leaf spring. The method of claim 1, The pressurizing device is a work conveying discharge system, characterized in that the coil spring.

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