JPH0449111A - Optically distinguishing device of parts attitude - Google Patents

Abstract

PURPOSE:To properly distinguish parts attitude at all times by blowing jet air periodically against the radiating portion and the light receiving portion of a parts attitude optically distinguishing device which irradiates a portion of a parts with beam of light and distinguishes both sides of the parts by the level of the reflection light. CONSTITUTION:When a parts 'm' does not exist at the bottom of the detection portion of a parts attitude optically distinguishing device A, the light receiving portion 14 receives a weak reflection light from a recess 16 but a control circuit does not work when the light is at this level. When the parts 'm' is conveyed to the device A in a desirable attitude, for instance, in a light black colored back facing attitude, the light from a radiating portion 13 makes a diffused reflection causing a light receiving portion 14 to receive a weak reflection light and the control circuit does not work. When the parts 'm' comes in in an undesirable attitude, for instance, in a mirror-surface-like surface facing attitude, the light from the radiating portion 13 reflects in the same angle causing the light receiving portion 14 to input a light receiving signal into the control circuit while compressed air is blown out from an air jet nozzle 23 for a specific time and blows the parts 'm' away. An electromagnetic valve 26 opens by a command after every specific time of operation and air is blown against the radiating portion 13 and the light receiving portion 14 from air jet nozzles 17, 18 blowing dust and the like away.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an optical attitude determination device for parts.

C. Prior Art and Problems Therewith] A vibrating parts feeder is also called a parts feeder, and is widely used to feed various parts one by one to a process in a desired posture.

In order to detect the attitude of the parts, various conveyance devices are installed along the transport path formed in the shape of a track in -M, and an optical attitude determination device is also provided. The posture is determined to meet the requirements of the next process.

If the optical orientation determination device determines that the orientation of the component is incorrect, the component is either ejected into the parts feeder by a feeding means disposed downstream, or corrected to the correct orientation and transported downstream. will be delivered to.

By the way, when performing optical attitude determination, if continuous operation is performed for a long time or if the usage environment of the installation location is not favorable, there is a risk that dust or the like may adhere to the light emitting part or the light receiving part.

In this way, if dust or the like adheres to the light emitting part or the light receiving part, it is easy to misidentify the orientation, and if the misidentification is made, the efficiency of supplying parts to the next process will be reduced, and parts with incorrect orientation will be supplied to the next process. It ends up.

[Problems to be Solved by the Invention] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an optical posture determination device for parts that can always properly determine the posture.

[Means for solving problems]

The above purpose is to irradiate a part of the part with a light beam from a light emitting part, receive the reflected light from the part in a light receiving part, and distinguish between the front and back of the part based on the received light level. This is achieved by an optical attitude discrimination device for a component, characterized in that a jet of air is periodically blown onto the light emitting section and/or the light receiving section.

Also, the above purpose is to provide a single or M number of light emitting elements and disposing the light emitting elements facing each other. ! In the optical posture determination device for a component, the device comprises a number of light-receiving elements, and the posture of the component is determined based on the state in which the component blocks light rays from the fence or a plurality of light-emitting elements. This is achieved by an apparatus for determining the optical posture of a component, characterized in that air is periodically blown onto a plurality of light-emitting elements and/or a plurality of light-receiving elements.

Further, the above object is to arrange the front and back sides of a plate-shaped component to be transferred while lying on one side wall portion of a transfer path consisting of a side wall portion having an SV-shaped cross section so as to face the one side wall portion. In the optical attitude determination device for a component, the detection unit of the light reflection type front and back detection device is configured to determine the front and back of the component based on the level of reflected light from the component that is received by the light reflection type front and back detection device. This is achieved by an optical attitude determination device for parts, which is characterized by periodically blowing out air.

In addition, the above object is to form the front and back sides of a plate-shaped component to be transferred while lying on one side wall of a transfer path consisting of a side wall having a tV-shaped cross section, and to A hole is formed in the surface of the part, and the reflected light from the surface of the part, which is transmitted on the side wall part of the light beam from the light emitting part connected to the optical fiber disposed in the hole, is transferred to the optical fiber. In the optical posture determination device for a component, the device determines the front and back posture of the component based on the light reception level detected by a light receiving unit connected to the optical fiber, and the device is configured to periodically blow jet of air onto the end face of the optical fiber. This is achieved by a component optical attitude determination device, which is characterized by:

Further, the above object is to form a front and back surface of a plate-shaped component to be transferred while lying on one side wall of a transfer path consisting of a side wall having an fV-shaped cross section, and to A first hole is formed in the surface of the part, and the reflected light from the surface of the part is transmitted on the side wall part of the light beam from the light emitting part connected to the optical fiber disposed in the hole. The front and back postures of the component are determined based on the light reception level detected by the light receiver connected to the optical fiber, and a second hole opening into the first hole is formed in the one side wall portion, and the second hole is formed in the one side wall portion. Air is blown into the hole of 9. An air nozzle that blows out air is disposed, and when the face-down position of the component is determined based on the light reception level detected by the light-receiving part of the optical fiber, air is jetted from the air nozzle based on the output signal, parts,
In the optical attitude determination device for a component, the device is configured to invert from the one side wall portion of the transfer path to the other side wall portion,
A switching valve means is connected to the air nozzle, and the air jetted from the jetting port of the air nozzle is arranged so as to blow against the end face of the optical fiber directly or indirectly through the first hole, and the switching valve means is switchable to emit compressed air of two levels of intensity, and when the light receiving section of the optical fiber determines that the component is in a face-down position, the switching valve means is switched to emit a lower level of ejection air; This is achieved by an optical attitude determination device for a component, which is characterized in that it can periodically switch to emit higher ejection air.

[Function] According to the configurations of each of the above inventions, dust etc. adhering to the optical detection part are blown away by the jetted air that is ejected periodically, thereby preventing dust from adhering to the optical detection part. . Therefore, it is possible to always accurately determine the orientation or front and back of a component.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a vibrating parts feeder equipped with an optical part attitude determination device according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 6.

In Figure 1, the vibrating parts feeder as a whole (20
), which has a bowl-shaped parts receiver (hereinafter referred to as a pole) (21), inside which a spiral track (29) is formed.

A torsional vibration driver is coupled to the lower part of the pole (21), thereby causing the pole (21) to perform torsional vibration. This vibration causes the part m on the track (29) to be transported along the track (29) and biased toward the side wall.

In the uppermost part of the pole (21), in order from the upstream side, there are a single-row alignment notch (31), a wiper block device (32),
Notch for laying parts horizontally (33), second notch for single-row alignment (
34) is provided, and parts m are supplied to the outside one by one from the truck discharge end (35) in a desired attitude.

As clearly shown in FIG. 2, the single-row alignment notch (31) consists of an arcuate, step-like notch f46a) [46b) formed in the side wall of the lower track (29),
Track (29) by upper notch (46al)
is partially defined as a narrow road f29al. This narrow road [29
The width of a) is slightly smaller than the width of part m. Among the parts m that arrived here in multiple rows, all the parts m in the inner row of the pole (21) are dropped through the notch (46a) (46bl) and into the track (29) part below, and are dropped onto the pole (21). Only the parts m in the outermost row proceed further downstream.

Note that the second single-row alignment notch (34) further downstream is similarly configured.

As shown in FIG. 3, the wiper block device [32] mainly consists of a block (47) and a ball (47).
Notch (48) formed in the side wall portion (21a) of 21)
is fitted. Pole (21) with flat screw (49)
Fixed. There is a gap between the lower surface of the part of the block (47) protruding toward the track (29) and the component transfer surface of the track (29), and this height h is greater than the thickness of the component m. It is smaller than twice the size.

In addition, a linear slope (50
) is formed, thereby allowing the overlapping parts m to be smoothly removed.

Next, the notch (33) for laying down the component will be explained with reference to FIG.

This notch (33) is located on the side wall (21a) of the pole (21).
) is formed in an arc shape along the vertical direction, and its bottom surface is slightly higher than the component transfer surface of the track (29). That is, a step (33a) is formed. The lying part m continues along the step (33a), but the part m' standing vertically and the part m''' standing horizontally move into the notch (33) when they arrive here. It is then laid down and transported in a lying position along the arcuate wall of the notch (33), and guided into the track (29).

In addition, the track (29) is the ball (21) as before.
slanting downward in the radial direction.

A second notch formed in the same manner as the single-row alignment notch (31)
As shown in FIGS. 1 and 5, an optical attitude (front and back) discrimination device A is disposed downstream of the single-row alignment notch (34). The optical attitude determination device A includes a light emitting unit (1
3) and a light receiving section (14), which are fixed to the side wall section (21a) via a mounting member (15).

Further, a track (29) receives light from the light emitting section (13).
) is formed with a small recess (16). The track (29) directly below the optical attitude determination device A with such a recess (16) is made of stainless steel, and therefore the light emitting unit (13) projected into this recess (16)
The light from the
reach. Therefore, when the component m is not present on the recess (16), the light receiving section (14) outputs a light reception signal with a low level of light reception □ to a control circuit (not shown).

On the other hand, on the side of the optical attitude determination device A, an air blowing device B is disposed. The air blowing device B has two air blowing nozzles f17) (18), and these air blowing nozzles (171 [18) are located at positions where blowing air is blown onto the light emitting section (13) and the light receiving section (14). An opening is placed in the.

Air jet nozzle white 71 (1) 1) 1 is piping (19)
They are connected to each other via a valve (25), and compressed air from a compression source (not shown) is supplied to each via a valve (25).

Further, an electromagnetic valve (26) is connected to the valve (25), and compressed air is discharged 8 based on a command signal to the electromagnetic valve (26).

As shown in FIGS. 5 and 6, a hole (22) is formed in the side wall (21al) downstream of the recess (16), and an air jet nozzle (23) for removing parts is formed in the hole (22). ) are provided.

The vibrating parts feeder equipped with the optical part attitude determination device according to the first embodiment of the present invention is constructed as described above, and its operation will be explained next.

First, a large amount of parts m are thrown into the ball (21).

It is assumed that the component m is, for example, a chip resistor whose back surface is made of gray-black ceramic and whose front surface is made of a specular insulating material. Therefore, the back surface has a low reflectance and the front surface has a high reflectance. However, the amount of reflection to the light receiving section (14) when the component m is conveyed face down is as low as the amount of reflection when the component m is not present and is diffusely reflected from the recess (16).

In such a parts feeder (20), when the torsional vibration drive unit is driven, the pole (21) performs torsional vibration, and the parts m are transferred along the track (29) and biased toward the side wall. When reaching the single-row alignment notch (31), the plurality of rows of parts m are arranged in a single row, and the parts m further advance toward the wiper block device (32).

Overlapping parts m in the wiper block device (32)
is dropped to the side while being guided by the slope (50) of the block (47). Therefore, on the downstream side of the block (47), the single-layer component m further advances on the track (29) and reaches the notch (33) for laying down the component. As shown in Fig. 4, the part m° standing vertically and the part m'' standing horizontally fall sideways into the notch (33) concave in the shape of an arc, take a lying position, and open the notch (33). ) along the wall,
You will be guided onto the track (29). Note that in the single-row alignment notches (31) and (34), the parts m lying sideways are also dropped into the lower track (29). in the end,
The parts m are transported one by one on a truck (29) in a lying position with the longitudinal direction facing the transport direction, and are supplied to the optical orientation determination device A.

Now, assuming that component m does not exist below the detection section of the optical attitude determination device A as shown in FIG. 6, the light receiving section (14) receives weak reflected light from the recess (16) as described above. The received light level is output to a control circuit (not shown) of the air jet nozzle (23), and at this level, the control circuit keeps the electromagnetic valve (81) closed and the air jet nozzle (23) inactive. Do not blow out air.

Now, when the component m in the desired orientation, that is, the face-down orientation with the gray-black ceramic surface facing upward, is transferred below the detection unit of the optical orientation determination device A, the component is recessed (1
6), but the ceramic surface diffusely reflects the light from the light emitting part (13), and some of it is reflected from the light receiving part (14).As a result, the light receiving part (14) still receives weak reflected light. and continues to supply the received light signal to the control circuit,
The air jet nozzle (23) does not operate. Therefore, part m
The liquid directly passes through the nozzle hole (22) and is discharged from the track discharge end (35).

Next, the optical attitude determination device A displays a part m in an undesired downward position, that is, a face-up part m with the specular surface facing upward.
is transferred and covers the recess (16), the light emitting part (
13) is reflected at almost the same angle (in the vertical direction), the light receiving section (14) supplies the light reception signal to the control circuit, and the control circuit detects an increase in the amount of light received. Now, an output is supplied to the electromagnetic valve (81) connected to the air ejection nozzle (23) to operate the nozzle (23). Then, the air jet nozzle (23) opens the valve (
80) blows out compressed air supplied from
Part m is blown toward the center bottom of the ball (21).

After the component m passes directly below the detection part of the optical attitude determination device A, as shown in FIG. The amount of light received is received. Therefore, the air jet nozzle (23) does not continue to operate even when there are no parts below the detection part, and stops after operating for a predetermined time. When the component m comes above the recess (16), the light reception level at the light receiving part (14) becomes the same as the recess (16).
16), the component m passes through the nozzle hole (22) and is discharged from the discharge end (35).

As described above, the front and back sides of the parts are reliably sorted, and only the parts m facing up with the specular surface facing upward are blown away.

In this way, the face-down parts m with the gray-black ceramic side facing upward are fed from the discharge end (35) to - pieces, but in this parts feeder, a timer (not shown) is further set for a predetermined period of time. For example, a command signal is supplied to the electromagnetic valve (26) every 15 minutes of operation. Solenoid valve (2
When a command signal is supplied to the valve (26), the valve (26) opens and the air jet nozzle (+71 (181) discharges the jet air supplied from the valve (25), for example,
It ejects forcefully at the tips of the light emitting part (13) and the light receiving part (14) for about 1 second each time, blowing off dust etc. attached to the light emitting part (13) and the light receiving part (14).

Therefore, the tips of the light emitting section (13) and the light receiving section (14) are always maintained in a good condition with respect to the passage of light rays.

The five embodiments of the first invention of the present invention have been described above,
Of course, the first invention of the present invention is not limited to this embodiment, and various modifications can be made based on the technical idea of the first invention of the present invention.

For example, in the above embodiment, a hemispherical recess (16) is formed, but it can also be applied to an optical attitude determination device that does not have a recess (16), and the component m is limited to a chip resistor. First, it can be applied to any part that has a difference in the degree of diffuse reflection.

Further, in the embodiment of the first aspect of the present invention, a parts feeder was explained as a parts feeder, but the invention is not limited to this.
For example, the first aspect of the present invention is also applicable to a chute that transfers parts by gravity.

Further, in the optical attitude determination device A in the above embodiment, the light emitting section (13) and the light receiving section (14) are connected to the track (29).
Although the light emitting part (13) and the light receiving part (14) are arranged on both sides of the upper part m as a boundary, it is also possible to arrange the light emitting part (13) and the light receiving part (14) integrally just above the part m on the track (29). can.

Furthermore, in the above embodiment, the light emitting section (
13) and the light receiving section (14), air may be blown periodically to only one of them depending on the situation.

FIG. 7 to FIG. 14 show an embodiment of the second invention of the present invention.
As shown in FIGS. 7 and 8, the chute is provided in a downwardly inclined manner and connected to the discharge port of the vibrating parts feeder. Further, on the side of the optical attitude determination device E, an air blowing device F is disposed. In FIG. 7, a spiral track winding clockwise is formed on the vibrating parts feeder (20°), although it is not completely shown, and a chute (21') is connected to the discharge end of this track. The chute (21') is arranged at an angle, and the -individual parts m are supplied from the parts feeder (20 degrees). The part m° applied to this embodiment is a flat part having a notch in one corner, and is supplied to one of the attitude chutes +21' shown in row a in FIG. 13. i.e. 4
However, these parts m° are corrected to the orientation shown in the 0th row by the configuration described below and sent to the chute (
One piece is supplied to the next process from the lower end (not shown) of 21').

Although the chute (21') is schematically illustrated in FIGS. 7 and 8, the optical attitude determination device E and the horizontal rotation unit are installed sequentially from the upstream side, adjacent to it, or connected to it. (24°) vertical rotation part f26') is provided.

Although not shown, the output signal of the optical attitude determination device E is supplied to a microprocessor, and the microprocessor generates a signal for driving the horizontal rotation section +24'1 and the vertical rotation section (26'') according to a predetermined program. .

The optical attitude determination device E consists of a light source (54°), a printed circuit board (55°), and a
phototransistor (56°). Directly below the light source (54'), there are three through holes (54') corresponding to the shape of the part m whose orientation is to be determined.
7a') f57b') [57c') are formed, and three phototransistors (56'
l are arranged. Through hole f57a°) [57b
') f57c') are arranged so as to have a positional relationship with each part m' as shown in column a of FIG. That is, the phototransistor (56°) directly below the first through hole (57a') is for so-called synchronization, and when the first through hole f57a') is blocked by the component m', the phototransistor (56°) is used for synchronization. The posture of the part is determined based on the positional relationship between 'l f57c'l and part m.There are 43
There are several postures, but the part m' whose posture is in column a and row
(Hereinafter referred to as part m of aA. The same applies to other postures)
In the case of , when the through hole (57a'l) is shielded, the other through hole (57b') (57c'l is also shielded at the same time.In the case of part m° of aB, the through hole (57a'
) is shielded, other through holes (57b') (5
7c') is not shielded. In the case of part m° of aC, when the through hole f57a') is shielded.

One through hole (57b'l) is not shielded, but the other through hole (57c'l) is shielded.In the case of part m° of aD, when one through hole (57a') is shielded, The through hole [S7b') is shielded, but
The other through hole (57c'l) is not shielded.The phototransistor (56c'l) is
'l is turned on and off, and this on/off signal is supplied to the microprocessor.

Details of the horizontal rotating section (24°) are shown in FIG. 9 and FIG.

The horizontal rotating body [31'] is supported by a bearing (35"), is loosely engaged with a circular through hole (28°) formed in the chute (21'), and is fitted with a pair of spacer members (33").
a') (33b') is rotated by 180° by a drive shaft (34°) of a rotary actuator (32°) fixed to the chute (21'). Further, a groove (31a') having the same width as the transfer path (30°) of the chute (21') is formed on the upper surface of the horizontal rotating body (31'), and the bottom surface of this groove t3ta') is formed on the upper surface of the chute (21'). ) is on the same level as the transfer path (30°), and the rotating body (31') is regulated in position so that it always stops aligned with this transfer path (30°) as shown. Compassion (31a
') also constitutes a part of the transfer path (30°) of the chute (21°), but has a length slightly larger than twice the length of part m, and is connected to the stopper (38a'). Relatedly, it is configured to temporarily accommodate one component m'.

The stopper (38a') is rod-shaped, and its tip is loosely engaged with a hole formed in the center of the rotating body (31°), and is moved vertically by an air cylinder (36°). driven by In other words, the air cylinder (36
The driving rod (37°) of the stopper body (38°)
), and the above-mentioned stopper (38a') is integrally formed as a rod portion of this main body (38°). Although the air cylinder (36°) is not shown, the pair of side walls (29a') (29b') of the chute (21')
) is fixed on the bracket fixed on the stopper (
A guide member (40') that guides the vertical movement of the
) is also fixed to the same bracket. Stopper body (
Urethane rubber (39°) is attached to the guide member (38"), which allows the stopper body (38") to be attached to the guide member (38").
This reduces the impact caused by a collision at an angle of 40°. That is, the guide member (40°) also functions to restrict the lowering position of the stopper (38a').

Figure 1) and Figure 12 show details of the vertical rotating part (26°), but this rotating part (26') is mainly composed of the rotating body (44
It consists of a rotating body (44°) and a stopper (49°).
) is 1 by rotary actuator (42°).
The stopper (49') is rotated by 80 degrees, and the stopper (49') is reciprocated in a direction perpendicular to the transfer path (30 degrees) of the chute (21') by an air cylinder (47 degrees).

The chute [21') is equipped with a guide member (41°) for reversing parts.
) is fixed, and a pair of slit-shaped notches (41a') (41b') are formed in this guide member (41°) in alignment with the transfer path (30') of the chute (21°). ing. The rotating body (44°) is the guide member (41°)
A slit-shaped groove (46°) is formed in the radial direction of the inner hole. This groove (46
Transfer path (30°)
The width of the rotating body (44°) is equal to the width of the chute f21')
It is rotated 180 degrees in a direction perpendicular to the transfer path (30 degrees), but the transfer path (3 (1'l) and the groove (46'l) are always aligned and stopped as shown in the figure. The rotating body (44') is regulated in position.
) also constitutes a part of the transfer path (30°) of the chute (2-bi), but it has a length slightly larger than twice the length of part m, and the relationship with the stopper (49°) Part m1
is configured to temporarily accommodate individuals.

The rotating body (44°) is connected to the chute (21'l transfer path (30°)
It is fixed to the drive shaft (43°) of the rotary actuator (42°) with its boss extending perpendicular to the component reversing guide member (41'l). It is rotatably supported.

The stopper (49') is rod-shaped, and a nut (51') is attached to the drive rod (48°) of the air cylinder (47°).
'), and is guided perpendicularly to the transfer path (30°) of the chute (21'l) by a guide member (50°).Although not shown, the chute +
It is assumed that the air cylinder (47°) and the guide member f50'') are fixed to the brackets fixed to the side walls (29a', f29b') of the cylinder 21'').

The forward movement position of the stopper (49°) is regulated by the contact between the nut (51°) and the guide member (50°).

A pair of arcuate grooves f44a') (44b') are formed in the longitudinal center of the groove (46°) of the rotating body (44°) in a direction perpendicular to the transfer path (30') of the chute +21'). A rod-shaped stopper [49°] is inserted between these ends (44a') and (44b') so as to be freely reciprocatable.

Further, the air blowing device F provided in connection with the above-mentioned optical attitude determination device E has two air blowing nozzles (58') (59°) as shown in FIGS. 7 and 14. These air jetting nozzles (58°) (59°) have openings arranged at positions where air is blown onto the light source (54'1) as the light emitting part and the phototransistor (56°) as the light receiving part. In addition, the opening of the air jet nozzle (59') branches into three branches, and simultaneously three phototransistors (56')
') can be blown with air.

Air jet nozzle (5 g'l (s9'1 is the piping (60 g'l)
'l, and compressed air from a compression source (not shown) is supplied to each via a valve (53°). An electromagnetic valve (61') is connected to the valve (53'), and compressed air is discharged based on a regular command signal from the electromagnetic valve (61°).

The chute (21) of the vibrating parts feeder equipped with the optical part attitude determination device E and the air blowing device F according to the second embodiment of the present invention is configured as described above.
Next, the effect will be explained.

Now, the part m° of aA in Fig. 13 is the optical attitude determination device E.
When the posture is supplied to the device E, it is determined that the posture is correct, and this determination signal is supplied to the microprocessor. As a result, the air cylinder (36°) (47') of the horizontal rotating part (24°) and the vertical rotating part (26°)
and the rotating body (31°) (41') do not operate, and the stoppers (38a') and (49') remain in the backward movement position (both forward movement positions are shown in the figure). , the part m° remains as it is\the groove (31a') which is also the transfer path for the horizontal rotating part (24°) and the vertical rotating part (26°) (
46') and is supplied from the lower end of the chute (21') in the desired attitude.

The next component m° is supplied to the optical attitude determination device E, and if the orientation of the component m° at this time is aB in FIG. 13, this is determined by the device E, and this determination signal is supplied to the microprocessor. Ru. As a result, first the horizontal rotating section (24
The stopper (38a') at 15°) is lowered to assume the forward movement position shown in FIGS. 9 and 10. Rotating body (3
The part m° supplied to the groove (31a') of 1') comes into contact with the stopper (38a') and stops as shown.

The rotating body (31°) then rotates 180° clockwise in FIG. 9 and in the plane of the transfer path (30°) to change the orientation of the part m'. That is, the part m' assumes the attitude bB in FIG. Before this part m' is discharged from the water hand rotating part (24'), the stopper (49°) in the vertical rotating part (26°) moves forward and takes the position shown in Fig. 1) and Fig. 12. . Note that the driving of the rotating body (31'l) in the horizontal rotating part (24°) and the driving of the stopper (49') in the vertical rotating part (26°) are performed after it is detected that the previous component has passed.

When the part m° of bB is fed to the vertical rotating part (26°), the stopper (4) is shown in FIG. 1) and FIG.
9°) and stops once. Next, the rotating body (44°
) rotates 180° in a plane perpendicular to the transfer path (30°) of chute (21'l).As a result, part m° of bB is turned upside down and assumes the attitude of cB, that is, the desired attitude. and is supplied from the lower end of the chute [21').

If the attitude of the next supplied part m' is aD, this is judged by the optical attitude determination device E, and the horizontal rotation part (
24°) is lowered to assume the position shown in FIGS. 9 and 1o.

Therefore, the part m' of aD is stopped by the stopper (38a'l) at the horizontal rotation part (24 degrees).Then, the direction is changed by the rotation of the rotating body (31') by 180 degrees, and the part m' of aD is changed to the posture of bD, that is, the desired posture. Before the part m of bD is ejected from the horizontal rotating part (24°), the stopper (49°) in the vertical rotating part (26°) has moved back from the position shown, so that the part m of bD The part m° passes directly through the vertical rotation section (26'') and is fed from the lower end of the chute (21).

In this way, the parts m in the desired posture are supplied one by one to the next process, and in particular, the optical posture determination device E equipped with the air blowing device F has the following effects. .

That is, in the posture determining device E, a signal is supplied from the control circuit to the N magnetic valve (61') of the air blowing device F every time the posture determining device E operates for a predetermined period of time, for example, 15 minutes, by setting a timer (not shown). When a signal is supplied to the solenoid valve [61'l], the solenoid valve (61') opens, and the air jet nozzles (58°) (59°) discharge the compressed air supplied from the valve (53°). For example, for a length of about 1 sec each time, the light source (54°) and the phototransistor [56°]
It squirts forcefully at the tip and blows away dust, etc. that has adhered to it. Therefore, the light source (54°) and the phototransistor (56°) are always maintained in a good state regarding the transmission and reception of light beams.

The embodiment of the second invention of the present invention has been described above, but
Of course, the second invention of the present invention is not limited to this embodiment, and various modifications can be made based on the technical idea of the second invention of the present invention.

For example, in the above embodiment, a single light source (54°) was used, but this light source (54°) was replaced by a phototransistor (56°).
The number may be plural (three) corresponding to the number of. In this case, air is blown onto each light source.

15 to 19 show a vibrating parts feeder equipped with an optical part attitude determination device according to a third embodiment of the present invention.

In FIG. 15, the entire parts feeder is indicated by (2) and has a bowl-shaped ball (3), and a torsional vibration drive unit is connected to the lower part of the ball (3).

A track (12) is formed in a spiral shape on the ball (3), and a component (1) such as a chip resistor, which is inserted into the center bottom of the ball (3), ascends from the opening (12a) until the ball ( 3) A large number of parts (1) are inserted into the drawing, but they are shown sporadically to make the drawing easier to understand).
It is transported counterclockwise along the track (12). Two single-row straightening sections (17°) are formed along this transfer path, of which a single-layer straightening section (13°) is provided alongside the single-row straightening section [17'l] on the downstream side. ball(
An optical posture discrimination correction device H is connected and fixed to the end of the track (12) in 3), and then the merging track [,
15°) is connected and fixed. Merging track (15°
) is discharged with the part (1) facing upward, and is supplied to the discharge truck (41).

In addition, the part (1) is discharged from the truck (41) in a face down position.
In the case of supplying the parts to a container, a known component reversing device may be provided upstream of the discharge truck (41).

The single-row straightening section (17') is constructed by forming an arcuate notch (17a'l (17b'l) in a stepped shape in the side wall of the track (12), so that the track (12) can be straightened in this part. The width is made slightly smaller than the width of the part fil, and only the part m in the innermost row of parts (1) that reaches this part in two or more rows passes through this part, and the other outer parts All of the parts m in the row pass through the notches (17a') (17b') and fall onto the track (12) below, and part (1), which was traveling with its longitudinal direction sideways, also falls at Ko 1. is configured to do so.

As clearly shown in Fig. 16, the single-layer straightening section f13°) is composed of a wiper block [6°] fixed to the ball (3), and the transfer surface of the track (12) facing from the bottom of the wiper block [6°] is fixed to the ball (3). The distance to the top is slightly larger than the height of the component (1). A taper (16a') is formed on the inner circumferential surface of the wiper block (16°) as shown in FIG. parts (
1) It makes it easier to fall downward.

The optical posture discrimination correction device H mainly consists of a block (62) having a V-shaped groove (22°) in cross section as shown in FIG. It consists of a detection device G and an air jet nozzle (64) connected to the negative part of the ball (3).

Further, on the side of the V-shaped groove (22°), a nozzle (69) of an air blowing device J is arranged so as to blow air to the detection part Ga of the light reflection type front/back detection device G. .

The width of one inclined surface (23°) of the groove (22°) is larger than the width of the part m, and the parts (1, l move along this inclined surface [23'') with the elongated direction facing the transfer direction. However, the first
As shown in Figure 8, there is a circular recess 12 at the component front and back detection position.
8) is formed. A light reflection type front detection device G is fixed to a block (62) facing the recess (28), and light from a light source (not shown) provided in the detection portion Ga detects the recess (28). configured to irradiate.

The detection part Ga further includes an analyzer (not shown), and has a recess (2
8) That is, it is arranged so as to receive the reflected light from the component front and back detection positions. One inclined surface (23°) of the block (62) is specular, and if the recess (28) is not formed, the light from the light source of the detection part Ga will be completely directed toward the analyzer. However, due to the recess (28), the light from the light source is diffusely reflected, and only a small amount of the reflected light is projected onto the analyzer. On the other hand, the front surface of component (1) is non-specular as a whole, but the center portion of the back surface is specular. As a result, the intensity of the reflected light from component m to the analyzer is determined by the component [
1) is configured to detect both sides.

As shown in Fig. 18, one of the inclined surfaces (23") has an air jet hole (27) adjacent to the recess (28) and on the downstream side.
is open, and an air jet nozzle (64) is connected to the outer opening of the ball (3) of this hole (27).

The width of the other inclined surface (24) of the groove (22°) is the width of part (1)
is larger than the width of part (1), but smaller than the length of part (1) (,
The block (62) is further formed with a vertical surface (25'') that is continuous with this sloped surface (24).A vertical surface (63) is also formed continuously with one of the sloped surfaces (23'). However, the width of the inclined surface (23') may be larger than the length of the part (1).

The merging track (15°) is a block (29°) having a groove (30) with an inverted trapezoidal cross-sectional shape as shown in Figure 19.
It is composed of: The groove (30) has a horizontal transfer surface (65) having a width approximately equal to the width of the component (1), and both side wall portions that are continuous with this transfer surface (65) and slope downward at equal angles toward this transfer surface. It consists of (66) and (67). Also, the level of the horizontal transfer surface (65) is at the bottom of the groove (22°) of the optical posture discrimination correction device H, that is, the level of the both inclined surfaces (23
°) It is on the same level as the intersection of (24).

In this embodiment, the groove (22°) of the optical posture discrimination correction device H
One inclined plane (23°) of the pole makes an angle of 45° with respect to the horizontal plane, while the track (12) of the other pole (3)
One slope (23') of the groove (22°) as shown in the figure
It is tilted slightly in the opposite direction.

Therefore, the discharge end of the track (12) has a figure-7 cross-sectional shape so that the part fl) can be smoothly introduced from the track (12) to one slope (23°) of the groove (22°). The width gradually increases toward the downstream side, and the groove becomes deeper.
18°) is formed, and one inclined surface of the downstream end of this groove (18°) is formed with one inclined surface [23'l] of the groove (22').
are aligned. Also, from one slope [23"l of the groove (30) of the merging truck trunk (15°), the slope of 661 + 671 makes an angle of 30° with respect to the horizontal plane, the groove + 22') (15°) groove (30
), so that the part (1) is smoothly introduced into the 7-shaped cross-section, and the width gradually increases and deepens toward the downstream side. is formed at the downstream end of the The other inclined surface (24) of the groove (22°) makes an angle of 30° with respect to the horizontal plane, and the same angle with the horizontal plane as the wall (67) of the full (30) of the merging track (15°). Because of this, the component (1) that has progressed along the other inclined surface (24) of the groove [22') is smoothly guided into the merging track (15') due to the --like step difference. There is.

The third embodiment of the present invention is constructed as described above, and its operation will be explained next.

When AC current is applied to the drive part, the ball (3) makes torsional vibrations around its center line, and the many parts (1) inserted into the ball (3) move along a spiral track (
12) go up. Among the parts (1) that reach the single-row correction part [17°] in multiple rows, the parts (1) in the rows other than the outermost part pass through the cutout part (17a') (17b'l) and move to the lower track. (12). Also, the part (1) that has been traveling sideways in the oblong direction also falls at this point.The truck (12) falls outside the ball (3) as clearly indicated in Section 16. Since the part (1) in the outermost row advances while coming into contact with the side wall because it is slightly tilted downward in the direction of the This is because not all the parts (1) are thrown into the center bottom of the ball (3) and the truck (12) starts to be transferred from the ascending gate (12a), and in some cases, the parts (1) may be straightened into a single row. This is because there is a possibility that the separated parts (1) may form multiple rows again due to interaction.

The part (1) that has overlapped with the single-layer correction part (13°) is removed by a wiper block (16''), and heads to the optical posture discrimination correction device H as a single layer.

In addition, the tapered surface (16a) of the wiper block (16°)
'), the overlapping parts (1) are smoothly guided and dropped onto the lower track (12).

The component (1) is oriented in a single row and in a single layer with the longitudinal direction in the transport direction and reaches the discharge end of the track (12) of the ball (3) with a groove (
18°) onto one inclined surface (23°) of the optical posture discrimination correction device H.
°). When it reaches the recess (28), it receives light from the detection section Ga of the light reflection type front/back detection device G, thereby detecting the front and back sides. If it is facing up, it will continue on one slope (23°). Further, as shown in FIG. 18, when the face-down part (lo) reaches the recess (28), the detection part Ga of the light reflection type front/back detection device G detects that it is face-down, and based on this, the air spout nozzle (64
) is driven, and compressed air is blown out from the hole (27).

This ejected air causes the component (1) to be inverted as shown by the arrow in FIG. 17 and placed on the other inclined surface (24) with the front facing upward. In addition, at this time, the part (1) and the inclined surface (2)
3°) Depending on the frictional force between (24) and the direction of the ejected air, the inverted part (1) will try to rotate on the other inclined surface (24) along this surface, but it will not rotate along the vertical surface (24). (25°
) prevents this rotation, and the part [lo] continues to move forward stably with its elongated direction facing the transport direction.

The part (1) that has reached the downstream end of the 7-shaped groove (22°) in the above manner has a double inclined surface (23') (without changing the front and back directions from 241 and overlapping each other). Na(
It is successively guided onto the groove (30) of the merging track (15°). That is, one slope (23°) of the groove (22°)
The part (1) from the merging track (Iso) is guided along the central horizontal transfer surface (65) by the guiding action of the side walls (66) (67) of the merging track (Iso), while the part (1) in the groove (22°) Part (1) from the other inclined surface (24) (which reaches the merging track (15°) at a certain distance from the part [1) on one inclined surface (23')) also reaches the merging track (15°). ) is guided along the central horizontal transfer surface (65) by the guiding action of the side walls (66) (67). In this way, the part (1) with the front side facing upward is sent to the merging truck (15
°) is guided to a discharge truck (41) connected to the pipe.

In this way, the parts (1) with the desired orientation are supplied from the discharge truck (41) to - pieces, but in this parts feeder (2), a timer (not shown) is further set for a predetermined period of time, e.g. Every 15 minutes of operation, a signal is supplied from the control circuit to a solenoid valve (not shown) of the air blowing device J. When a signal is supplied to the electromagnetic valve, the nozzle (69) of the air blowing device J e.g.
After a length of about 100 seconds, strong air is blown out to the detection part Ga of the light reflection type front/back detection device WG, and dust etc. attached thereto are blown away.

Therefore, the detection section of the light reflection type front/back detection device G is always maintained in a good state regarding the transmission and reception of light beams.

The embodiment of the third invention of the present invention has been described above.
Of course, the third invention of the present invention is not limited to this,
Various modifications are possible based on the technical idea of the third aspect of the present invention.

For example, in the above embodiments, a parts feeder having spiral tracks has been described, but the present invention is also applicable to a recently developed so-called circulating linear parts feeder having straight tracks.

Further, in the above embodiments, the front and back sides of the component are determined by the light reflection type front and back detection device G, but the detection means is not limited to this, and various known front and back detection means can be applied. For example, an optical fiber may be used to determine whether a component is front or back.

FIG. 20 shows a main part of an optical attitude determining device for parts according to an embodiment of the fourth invention of the present invention. Similarly, the cross section of the vibrating parts feeder is disposed in the middle of a transfer path V consisting of a -iV-shaped side wall.

This transfer path V consists of one side wall part (4a) and the other side wall part (4b), and these side wall parts [4a] (4b)
Vertical surfaces (5a) and (5b) are formed continuously.

The side wall portion (4a) has a first hole (7) drilled from the side surface of the block (6) and a second hole [8] drilled from the bottom surface of the block (6). and the second hole (8)
is opened at a position slightly downstream of the first hole (7). An optical fiber (9) is arranged in the first hole (7),
An air jet nozzle (lO) is arranged in the second hole (8).

The optical fiber (9) is made up of a large number of optical fiber elements (36) as shown enlarged in FIG. 21, and the ones marked with black circles in FIG. As shown, the white circles of the light source (1)) are bundled together and a photodetector (F70) (for example, a phototransistor) is placed at the end of the bundle.
is connected.

The controller (39) is configured to determine the front and back orientation of the component n based on the light reception level of the light receiving element (70).

A solenoid valve (85) is connected to the air jet nozzle (10), and the solenoid valve (85) is excited by an output signal from the controller (39). When the valve (86) opens, the air jet nozzle (lO) jets out the compressed air supplied to the valve (86) for a predetermined period of time.

On the other hand, a third hole (71) is opened in the first hole (7), and a nozzle (72) of an air jet device is disposed in the hole (71), and its discharge port is connected to an optical fiber. It faces the end face of (9).

The fourth embodiment of the present invention is constructed as described above, and its operation will be explained next.

When the parts n reach the optical attitude determination device in a single row and in a single layer by various sorting devices of the vibrating parts feeder,
That part n covers the first hole (7). The component n is, for example, a chip resistor, as in the embodiment of the third invention. When the first hole (7) is not covered by part n,
The light from the light source (1) is not reflected by the component n (no light is projected onto the light receiving element (70)).

For example, when component n is in a position with its back facing up, the surface of component n that faces the optical fiber (9) has specularity, so that the light from the light source fil) has the specularity of component n. reflected by the surface. The light receiving element (70) receives this as a whole and turns on.

When the controller (39) determines that part n is in the correct position, the solenoid valve (85) is not energized and parts n
is transported downstream and supplied to the next process.

On the other hand, when the component n reaches the optical attitude determination device K in a face-up attitude, the non-specular surface faces the optical fiber (9), so the reflection level to the light receiving element (70) is small. As a result, the controller (39) determines that the part n is in an incorrect posture, and supplies its output to the solenoid valve (85) connected to the air jet nozzle (10).

As a result, air is ejected from the nozzle (lO), and the part n is turned over to the other side wall portion (4b). At this time, even if the force of the ejected air is somewhat strong, the part n is prevented from flying outward due to its engagement with the vertical surface (5b).

In this way, the part n that is not in the desired position is turned over to the other side wall (4b) and assumes the desired position on this side wall (4b). In this embodiment as well, later, at a known merging track section (not shown), the component n on the other side wall section (4a) is transported again on the same track in the same posture.

In this way, the parts n, all of which are oriented in the desired direction, are delivered one by one from a discharge truck (not shown).

In addition, in a parts feeder equipped with such an optical attitude determination device K, a timer (not shown) is set so that the electromagnetic coil disposed in the vibration drive section is activated every predetermined period of time, for example, 15 minutes, by setting a timer (not shown). The electricity is cut off and the vibration of the block (6) temporarily stops. Further, when the operation of the parts feeder is finished, an output signal is supplied from the control circuit of the parts feeder to a solenoid valve (not shown) of the air blowing device. When an output signal is supplied to this solenoid valve, strong air is ejected from the nozzle (72) of the air ejection device to the detection part Q of the optical attitude determination device, for example, for a length of about 1 sec at a time. , Dust, etc. adhering to this area will be blown away.

Therefore, the detection unit Q of the optical attitude determination device is always maintained in a good state regarding light detection.

The embodiment of the fourth invention of the present invention has been described above,
Of course, the present invention is not limited to this embodiment, and various modifications can be made based on the technical idea of the fourth aspect of the present invention.

For example, in the above embodiment, the first hole (7) and the second hole (8) are provided separately, but they may be the same hole.

FIG. 22 shows a main part of an embodiment of the fifth invention of the present invention, and the same elements as the embodiment of the fourth invention shown in FIG. 20 are given the same reference numerals.

A first hole (75) is formed in one side wall portion (74al) of the block (73) equipped with a V-shaped transfer path W, and an optical fiber (9) is formed in the first hole (75). ) is provided in the side wall portion (74B).
5) is formed in the positional relationship shown in the figure, and the second hole (76) is provided with an air ratio nozzle (l).
O) is arranged in the relative positional relationship shown in the figure with the detection part Q of the optical fiber (9). These optical fibers (
9) and the air jet nozzle (lO) perform the same functions as the optical fiber (9) and the air jet nozzle (10) according to the embodiment of the fourth invention, but the air jet nozzle (lO) has an additional discharge pressure. A large switching valve f186) and a solenoid valve (185) are connected.

It is possible to discharge compressed air in two levels of strength using the switching valve (186) and the valve (86), and the solenoid valve (185)
receives an output from a controller (not shown) and operates a switching valve (1
86) Open the valve.

The fifth embodiment of the present invention is constructed as described above, and its operation will be explained next.

In this embodiment, when the controller (39) of the optical fiber (9) determines that the part n is not in the predetermined posture, the nozzle (lO) starts ejecting water based on the command signal from the controller (39). Air is blown out and part n is flipped onto the other side wall (74b).

On the other hand, in the parts feeder of this embodiment as well, depending on the setting of a timer (not shown), every time the parts feeder operates for a predetermined period of time, for example, 15 minutes, the power to the electromagnetic coil disposed in the vibration drive section is cut off, and the block (73) is turned off. The vibrations will temporarily stop. Also, when the parts feeder stops operating in this way, a signal is supplied from the control circuit to the solenoid valve (1851), and the pulp [186]
The valve is opened and the discharge pressure is made strong, so that a strong jet of air is jetted out from the air jet nozzle (lO). Then, a part of the ejected air flows through the first hole (as shown by air flow R).
75) and indirectly hits the end face of the optical fiber (9). In addition, some are directly applicable. As a result, dust and the like attached to the detection section Q of the optical fiber (9) are reliably blown away, so that the detection section Q of the optical fiber (9) is always maintained in a good state for light detection.

The operation of the optical posture determining device M of a component according to the embodiment of the fifth invention of the present invention has been described above, but the fifth invention of the present invention is not limited to this.
Various modifications are possible based on the technical idea of the invention.

For example, in the above embodiments, the air is blown indirectly onto the end face of the optical fiber (9), but it may also be blown directly onto the end face of the optical fiber (9). In that case, as shown in FIG. 23, the second hole (76)
The air jet nozzle (10
) may be placed close to the end face of the optical fiber (9) disposed within the first hole (75). In this case, the air ejected for normal part reversal directly collides with the detection part Q, as shown by the air flow R°, and then is indirectly applied to the part to be reversed.

The embodiments of each invention of the present invention have been described above with reference to the drawings. For example, in the first, second, and third embodiments, when blowing strong compressed air to the light emitting part and/or the light receiving part, However, depending on the position of the nozzle for blowing strong air, it may have a negative effect on the removal of parts in abnormal positions. You can also stop the whole thing.

Furthermore, in the fourth and fifth embodiments, the entire device is stopped when strong air is blown onto the detection section, but the detection section of the attitude determination device and the nozzle opening that blows strong air or the nozzle opening that blows weak air is Depending on the relative position of the attached nozzle ports (these nozzle ports may be common), strong air may be blown during operation of the device to remove dust and the like accumulated on the detection section.

Further, in each of the above embodiments, the periodic timing of blowing strong compressed air is such that it blows for 1 second every 15 minutes, but this timing can be easily changed at any time. For example, if 15 minutes is 1 hour,
1 second may be 2 seconds. That is, after one hour of continuous operation, two sands may be sprayed. Also, this timing may be switched in two stages, night and day. In that case, there is less occurrence of lumps etc. at night, so
The settings may be set as appropriate, such as during the daytime, the fuel will emit for 1 second after 15 minutes of operation, and during the night, the fuel will emit for 1 second after 1 hour of operation.

Further, in each of the above embodiments, the ejected air is pure compressed air, but in order to provide a cleaning effect, a chemical agent such as an aerosol may be sprayed in the form of a spray.

In this way, the term "compressed air" in the present invention includes air containing liquid in a sprayed state. To eject such a spray of cleaning liquid, a combination of a spray gun and an electromagnetic valve may be used.

[Effects of the Invention] As described above in each of the embodiments of the present invention, according to the optical attitude determination device for components of the present invention, dust etc. adhering to the detection unit can be blown away periodically by the jet of air. Therefore, the posture can always be properly determined.

In addition, in the past, if the part discrimination function deteriorated, the worker would detect it using a failure detection means such as an alarm, stop the entire device, and look for the faulty H point, and then the cause would be determined by the optical posture discrimination device. However, in the present invention, dust etc. accumulated on the light emitting part and/or the light receiving part are removed by periodically blowing strong compressed air onto the light emitting part and/or the light receiving part. As a result, the condition for the passage of light is maintained in a good condition, and therefore, any trouble caused by leakage can be eliminated, and the frequency of maintenance can be reduced. If there is a problem with the optical attitude determination device, prepare a separate compressed air source, such as a compressor, and also prepare a separate air jet nozzle to remove dust, etc. that has accumulated on the light emitting part and/or light receiving part. However, in the present invention, these air blowing devices are already built into the device, so there is no need to prepare another compressed air source, and the work can be automated. Since the process is carried out in a consistent manner, production efficiency can be improved. In addition, conventionally, when operating continuously at night, troubles could not be detected and problems could occur, but in the present invention, the light emitting part and/or the light receiving part are sprayed periodically. Because of this, the occurrence of trouble during the 5-night period is extremely rare.

[Brief explanation of the drawing]

1 to 6 show an embodiment of the first invention of the present invention, FIG. 1 is a plan view of a parts feeder equipped with an optical attitude determination device for parts according to the first invention, and FIG. FIG. 3 is a partially enlarged perspective view showing the notch for aligning sheep rows in FIG. 1, FIG. 3 is a sectional view taken along the line mm in FIG. 1, and FIG. 4 shows the notch for laying down parts in FIG. Partially enlarged perspective view, 5th
The figure is a cross-sectional view along the line V-V in Figure 1, and Figure 6 is a cross-sectional view along the line V-V in Figure 1.
7 to 14 show an embodiment of the second invention of the present invention, and FIG. 7 shows an optical A plan view of a vibrator in which a chute equipped with an attitude determination device is disposed on a parts feeder, FIG. 8 is a side view of FIG. 7, and FIG. 9 is a partially sectional plan view showing details of the horizontal rotating part in FIG. 7. , Figure 1θ is a partial cross-sectional side view of the horizontal rotating part, 1st)
The figure is a partially sectional plan view showing details of the vertical rotating section in FIG. 7, FIG. 12 is a partially sectional side view of the vertical rotating section, and FIG.
3 is a flowchart showing each attitude and attitude change of the parts in a plan view for explaining the operation of the optical attitude determination device in FIG. 7, and FIG. 14 is a flow chart provided in the optical attitude discrimination device according to the second invention. Cross-sectional view showing the air blowing device, No. 15
19 to 19 show an embodiment of the third invention of the present invention, FIG. 15 is a plan view of a parts feeder equipped with an optical attitude determination device for parts according to the third invention, and FIG.
Fig. 17 is an enlarged sectional view in the XV'1-XV'l1) direction in Fig. 15, Fig. 18 is an enlarged sectional view in the Partially enlarged plan view, Fig. 19 is x■-x in Fig. 15
■ An enlarged cross-sectional view in the line direction; FIG. 20 is a cross-sectional view showing an optical posture determination device for parts according to the fourth embodiment of the present invention; FIG. 21 is an enlarged cross-sectional view of the optical fiber shown in FIG. 20; FIG. 22 is a sectional view showing an optical attitude determination device for parts according to an embodiment of the fifth invention of the present invention, and FIG.
FIG. 7 is a sectional view of a main part showing another embodiment of the optical posture determination device for parts according to the invention. In addition, in the figure ■) ・・・・・・・・・・−・ part
Product 7) (8) ・・・・・・・・・ Hole 9) ・・・・・・・・・ Optical fiber 1)) ・・・・・・・・・・・・・ Optical Source 13ゝ・・・・・・・・・
・Light emitting part 14)...
...Light receiving part 17) (18) ... Air jet nozzle 22') (30) ... Groove 54) ...... Light
Source 56)... Phototransistor 58°) (59°)... ノ
Zulu diagram (66) (67) ・・・・・・・・・ (69) ・・・・・・・・・・・・ (70) ・・・・・・・・・・・・ m , n ・ ・ ・・ ・ ・ ・ ・
・B % F, L ・・・・・・ G ・・・・・・・・・・・・ K % M ・・・・・・・ Side wall nozzle Phototransistor parts air jet Equipment Light reflective front/back detection device Optical attitude determination device Substitute Yasuo IisakaFigure 2Figure 4Figure 6Figure 9Figure 1)Figure 10Figure 12Figure 14Figure 54--... ....Light source 56'°-=゛=Phototransistor 58'-59'...Air jet nozzle F...
... Air blowing device Fig. 17 69... Nozzle Fig. 19 6 Row 67... Side wall part Fig. 15 Fig. 20 Fig. 21w1 9... ......Optical fiber 1)...Light source Fig. 16 Fig. 22m M......Optical attitude determination system No. 231)

Claims (5)

[Claims] (1) Optical design of a part in which a part of the part is irradiated with a light beam from a light emitting part, the light reflected from the part is received by a light receiving part, and the front and back of the part are determined based on the received light level. What is claimed is: 1. An optical posture determining device for a component, characterized in that a jet of air is periodically blown onto the light emitting section and/or the light receiving section. (2) A state in which the component consists of a single or multiple light-emitting elements and a plurality of light-receiving elements arranged opposite to the light-emitting elements, and the component blocks light from the single or multiple light-emitting elements. In the optical attitude determination device for a component, which determines the attitude of the component by Features: Optical orientation determination device for parts. (3) The front and back of the plate-shaped component to be transferred lying on one side wall of a transfer path consisting of a side wall having a substantially V-shaped cross section are disposed so as to face the one side wall. In an optical attitude determination device for a component that determines whether the component is front or back based on the level of reflected light from the component that is received by a light reflection type front/back detection device, air is ejected to the detection section of the light reflection type front/back detection device. An apparatus for determining the optical posture of a component, characterized in that the device periodically sprays the air with water. (4) The front and back sides of a plate-shaped component to be transferred lying on one side wall of a transfer path consisting of a side wall having a substantially V-shaped cross section are formed on the one side wall, and the side wall of the side wall is forming a hole opening in the surface, and connecting the reflected light from the surface of the component transferred on the side wall portion of the light beam from the light emitting unit connected to the optical fiber disposed in the hole to the optical fiber; The apparatus for determining the optical orientation of a component determines the front and back orientation of the component based on the light reception level detected by the light receiving unit, characterized in that a jet of air is periodically blown onto the end face of the optical fiber. Optical attitude determination device for parts. (5) The front and back sides of a plate-shaped component to be transferred lying on one side wall of a transfer path consisting of a side wall having a substantially V-shaped cross section are formed on the one side wall, and the side wall of the side wall is A first hole opening in the surface is formed, and a light beam from a light emitting section connected to an optical fiber disposed in the hole is transmitted on the side wall portion and reflected light from the surface of the component is reflected from the surface of the component. The front and back postures of the component are determined based on the light reception level detected by the light receiving unit connected to the fiber, and a second hole opening into the first hole is formed in the one side wall portion, and the second hole is opened to the first hole. an air nozzle for ejecting air is disposed inside the optical fiber, and when the face-down orientation of the component is determined based on the light reception level detected by the light receiving portion of the optical fiber, ejecting air from the air nozzle based on the output signal; In the optical attitude determination device for a component, wherein the component in the face-down orientation is reversed from the one side wall portion to the other side wall portion of the transfer path, wherein a switching valve means is connected to the air nozzle, and the air nozzle The air ejected from the ejection port is arranged so as to directly or indirectly blow onto the end face of the optical fiber through the first hole, and the switching valve means ejects compressed air in two levels of strength and weakness. When the light-receiving part of the optical fiber determines that the component is in a face-down position, the light receiving part of the optical fiber can be switched to emit a lower ejected air, and it can be switched periodically to emit a higher ejected air. An optical attitude determination device for parts, characterized in that: