JP2003246440A - Parts selector and parts feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a parts selector and a parts feeder provided with the parts selector capable of reducing parts selecting errors. <P>SOLUTION: Normally, a control signal C is H, and an air current is in a blown state. At this time, when a discrimination signal D become H to discriminate a part P as nondefective, the control signal C becomes L according to the passage timing shown by an origin signal S, and the air current is stopped. As an embodiment, when the discrimination signal D becomes H to discriminate the part P as nondefective, the control signal C becomes L from H on the basis of the timing of the falling edge (H→L) of the origin signal S. In this embodiment, the control signal C is changed over to L after a delay time Td (about 5 ms, for instance) from the falling edge of the origin signal S, and the air current released from an air current blast port 131 W is stopped. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component selecting device and a component supplying device, and more particularly to a component conveying technique suitable for selecting and supplying electronic components.

[0002]

2. Description of the Related Art Generally, there is known a component supply device which moves electronic components along a conveying path, aligns them, and supplies them. As such a component supply device, for example, there is a vibrating component supply device that vibrates a vibrated body forming a conveyance path by vibration and moves a component on the conveyance path in a specified direction by vibration.

FIG. 4 is a schematic plan view showing an example of the structure of the above-mentioned vibration type component supplying apparatus. This parts supply device 10
0 is a bowl-shaped feeder 110 equipped with a vibrating tray 111
A linear feeder 120 connected to the bowl-shaped feeder 110, and a conveying path 11 of the bowl-shaped feeder 110.
3 and a component sorting device 130 that sorts the components that move on the upper surface.

The bowl-shaped feeder 110 is provided with a vibration source (not shown) for vibrating the vibrating tray 111, which is a vibrating body, in the orbiting direction. When a component (not shown) is supplied to the inner bottom 112 of the vibrating tray 111, The component rises up from the inner bottom portion 112 along the spiral conveyance path 113 formed on the inclined peripheral wall surface, and finally the component is sent to the linear feeder 120 via the conveyance connection portion 114.

The linear feeder 120 includes a vibrating rail 121, which is a vibrating body, and a vibration source (not shown) for vibrating the vibrating rail 121 in its longitudinal direction. 122 is configured. The components sent from the transport connecting portion 114 of the bowl-shaped feeder 110 move on the transport path 122.

The component sorting device 130 includes a component sorting unit 131 facing the outermost peripheral portion of the conveying path 113 of the bowl-shaped feeder 110, and sensor outputs from a discrimination sensor and an origin sensor provided in the component sorting unit 131. Sensor amplifier 132 that receives the detection signal and outputs the detection signal by amplifying / modulating, and the like, a control device 133 that receives the detection signal output from the sensor amplifier 132, and drives each unit based on the control signal output from the control device 133 An air flow control valve 135 connected to the component sorting unit 131, which is composed of a drive circuit 134 that sends a signal, an electromagnetic valve that operates according to the drive signal sent from the drive circuit 134, and a gas ( For example, a gas supply unit 136 including a compressor that sends compressed air).

The component selection device 130 detects the quality of a component moving on the conveyance path 113 in the bowl-shaped feeder 110, for example, the quality of the posture of the component with a discrimination sensor or the like, and the posture of the component is defective. In this case (for example, when the posture is such that the posture is lying sideways or inverted with respect to the normal posture), the airflow control valve 135 is opened in synchronization with the passage timing of the component detected by the origin sensor, and the defective component described above is opened. Are excluded from the transport path 113.

FIG. 5 is an enlarged schematic diagram showing the structure of the sorting portion in the component sorting unit 131 of the above-described conventional component sorting apparatus 130, and shows the operation timing of this sorting operation. The discrimination sensor 2 and the origin sensor 3 are arranged along the conveyance path 1 in the component sorting unit 131, and the airflow blowing port 4 is provided in front of (the upstream side of) the origin sensor 3. The inclination of the conveyance path 1 changes at a position corresponding to the origin sensor 3, and the origin sensor 3 can detect each individual part P even when a plurality of parts P are continuously conveyed on the conveyance path 1. Is configured.

At this time, the sensor amplifier 132 outputs the discrimination signal D based on the output of the discrimination sensor 2, and the sensor amplifier 132 outputs the origin signal S based on the output of the origin sensor 3 which detects the passage timing of the component. Output. Then, the control device 133 outputs the control signal C to the drive circuit 134 based on the discrimination signal D and the origin signal S. The control signal C is a signal for controlling the opening / closing of the airflow control valve 135.

As shown in FIG. 5, when the origin signal S is H (high potential or ON) and the determination signal D is H (high potential or ON), it is determined that the component is a good product. , The control signal C is L (low potential or OF) even when the passage timing of the component detected by the origin signal S comes.
F) remains, and no air flow is blown to the relevant part. However, when the origin signal S becomes H, the discrimination signal D
If L remains L, the part is determined to be defective. In this case, the control signal C becomes H,
The airflow control valve 135 is opened, and the airflow is blown to the component judged to be defective in the component selection unit 131,
Removed from the transport path. After that, when the predetermined time Tb elapses, the control signal C returns to L, and the air flow is stopped.

[0011]

However, in the above component supply device 100, the air blow timing of the component sorter 130 is displaced from the actual component transport position, that is, the component reaches the air blow position. There is a case where a defective component passes through the component selection unit 131 due to a deviation between the timing of performing the operation and the timing of blowing the airflow. In particular, when the distance from the airflow control valve 135 to the airflow blowing port 4 becomes long, the delay from the detection of the part P by the origin sensor 3 to the actual blowing of the airflow from the airflow blowing port 4 becomes large. There has been a problem in that the higher the transport speed, the more frequently the component P passes through without being hit by the air flow.

For this reason, conventionally, as shown by a dotted line in FIG. 4, a method of preventing defective parts from passing by adopting two or more similar parts selecting units 131 has also been adopted. But the parts sorting unit 13
When 1 is provided in multiple stages, it is difficult to make the device compact and the manufacturing cost increases.

Therefore, the present invention solves the above problems, and an object of the present invention is to provide a parts selection device and a parts supply device equipped with the parts selection device, which can reduce selection errors of parts. is there.

[0014]

In order to solve the above-mentioned problems, a parts sorting apparatus of the present invention comprises a judging means for judging the state of a part moving on a conveying path, and the above-mentioned first state on the conveying path. A component sorting means for passing a component as it is and blowing an air stream to the component in a second state to sort the component, and in a normal state, the air stream is blown onto the transport path, and the determining means sets the state to the first state. Air flow control means for temporarily stopping the air flow when the determined part passes by.

According to the present invention, the air flow control means
In the normal state, the airflow is blown onto the conveyance path, and the airflow is stopped when the component (for example, non-defective product) that is determined to be in the first state by the determination unit passes, and thus is in the second state. It is possible to reduce the probability of a selection error in which a component (for example, a defective product) is accidentally passed as it is.

In the present invention, the air flow control means has a component passage detecting means for knowing the passage timing of the component determined to be in the first state by the determining means.
It is preferable that the air flow is stopped in accordance with the passage timing of the component determined to be in the first state detected by the component passage detecting means.

According to the present invention, the component passage detecting means detects the passage timing of the component determined by the component passage detecting means to be in the first state, and the air flow control means detects the air flow in accordance with the detected passage timing. Stop. In general, stopping the air flow makes it easier to shorten the response time than starting blowing the air flow, and thus the probability of erroneously selecting a component in the first state can be reduced. For example, when the gas is configured to be supplied from the airflow control valve to the airflow selection unit via the airflow path such as an air tube, when starting the blowing of the airflow, the gas is a compressible fluid. Therefore, there is a certain time lag from the opening of the air flow control valve until the air pressure inside the air flow sorting unit rises and sufficient air flow is blown onto the transport path, while when stopping the air flow, the upstream side Since the air flow slows down in a short time due to the pressure drop, the time lag from the closing of the air flow control valve to the substantial stop of the air flow blown on the conveyance path is substantially more than the time lag at the start of the blowing. As the parts in the first state reach the position where the airflow is blown, the airflow is not substantially stopped yet and the airflow is blown to the parts. It is possible to reduce the probability. Further, in the present invention, normally, the blowing position of the air flow is more than the position of the component detected by the component passage detecting unit for knowing the passage timing of the component determined to be the first state by the determining unit. Although it will be arranged on the downstream side, since the response time of the air flow stop is short as described above, the interval between the detection position of the component passage detection means and the air flow blowing position can also be reduced, so that the interval can be reduced. As a result, it is possible to more accurately match the stop timing of the air flow with the arrival timing of the parts, further reduce the selection error, and easily cope with the increase in the transfer speed and the transfer density of the parts. Like

In the present invention, in the air flow control means, immediately after the component determined to be in the first state by the component passage detecting means, the next component determined to be in the second state by the component passage detecting means arrives. In this case, it is preferable to restart the blowing of the airflow before the arrival of the next component according to the passage timing of the next component.

According to the present invention, the air flow remains stopped until the next component is sent, so that a non-defective product can be passed through more reliably. In the present invention, normally, the air flow control means is set to restart the blowing of the air flow when a predetermined time elapses after passing the component determined to be in the first state by the component passage detection means. However, if the above-mentioned predetermined time in which the air flow remains stopped is set too short, it is highly likely that the air flow will be restarted before the component determined to be in the first state has finished passing, Since the frequency of blowing the air current to the object increases, it is necessary to lengthen the above predetermined time to some extent. However, if the predetermined time is lengthened, there is an increased possibility that a component determined to be in the second state will pass through as it is. On the other hand, in the present invention, the predetermined time is lengthened to a certain extent so that the component determined to be in the first state is allowed to pass through and the air flow is immediately restarted when the next component determined to be in the second state arrives. Then, the air current can be surely blown to the next component, so that the sorting accuracy can be further improved.

Next, the component supply device of the present invention is a component supply device for moving and supplying components along a conveying path, and a component aligning means for aligning the components and sending them on the conveying path, Determination means for determining the state of the component moving on the transport path; and component sorting means for allowing the component in the first state to pass through the transport path as it is and blowing an air stream to the component in the second state to sort the component. An air flow control unit that is configured to blow the air flow onto the transport path in a normal state and that temporarily stops the air flow when the component determined to be in the first state by the determination unit passes. It is characterized by having.

In the present invention, the first means is provided by the judging means.
A component passage detection means for knowing the passage timing of the component determined to be in a state, and the airflow control means is responsive to the passage timing of the component determined to be in the first state by the component passage detection means. It is preferable to stop the air flow.

In the present invention, the air flow control means is arranged so that the passage timing of the next component immediately after the component determined to be in the first state by the component passage detecting means is the next component determined to be in the second state by the component passage detecting means. Accordingly, it is preferable to restart the blowing of the airflow before the arrival of the next component.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of a component sorting apparatus and a component supplying apparatus according to the present invention will be described in detail with reference to the accompanying drawings. The component sorting device and the component supplying device of the present embodiment have the same schematic configuration as the component sorting device 130 and the component supplying device 100 shown in FIG. 4 described above, and therefore, the description of the similar components will be omitted and In the description, the entire configuration will be described using the reference numerals shown in FIG.

The parts sorting apparatus 130 of this embodiment is shown in FIG.
As shown in FIG. 5, the component selection unit 131, the sensor amplifier 132, the control device 133, the drive circuit 134, the air flow control valve 135, and the gas supply unit 136 are provided.

FIG. 3 is a partial internal view (a) showing a part of the part selection unit 131 as viewed from the center side of the bowl-shaped feeder 110, and a part shown in (a) is viewed from above. It is a fragmentary sectional view (b) showing the appearance. As shown in FIG. 3, the component sorting unit 131 includes a sorting block 131A incorporated in the outer peripheral portion of the bowl-shaped feeder 110, a sensor plate 131B incorporated in the sorting block 131A, and an airflow control plate 131.
Have C and. The sorting block 131A and the sensor plate 131B incorporated therein constitute a transport path 131X in the component sorting unit 131 provided in the transport path 113. This transport path 131X
Indicates that the portion in front of the apex portion 131Xa (upstream side portion) has an upward slope, and the portion in front of the apex portion 131Xa (downstream side portion)
Is downhill. That is, the transport path 131X
Is configured so that the transport direction changes in the middle.

Further, a discrimination sensor 131Y is incorporated in the sensor plate 131B, and the discrimination sensor 13
1Y is configured to be able to detect whether or not the component P on the transport path 131X is in a normal posture via the opening 131Ba. The opening 131Ba is provided in the transport path 1
The road surface of 31X is opened slightly in front (upstream side) of the apex 131Xa. This discrimination sensor 13
1Y is, for example, whether or not the light emitted from above to the discrimination sensor 131Y through the opening 131Ba is blocked by the component P, or the light emitted from the discrimination sensor 131Y through the opening 131Ba is reflected by the component P and the aperture 131 is opened again.
The posture of the component P can be known by whether or not it returns to the discrimination sensor 131Y through Ba.

An origin sensor 131Z is arranged beside the apex portion 131Xa of the conveying path 131X.
31Z is configured to be able to detect whether or not the component P passes through the position directly above the apex 131Xa. For example, the origin sensor 1 from the opposite side across the transport path 131X.
Whether or not the light radiated toward 31Z is blocked by the component P, or from the origin sensor 131Z to the vertex 131
It is possible to know that the component P has passed over the apex 131Xa depending on whether the light radiated on Xa is reflected by the component P and returns to the origin sensor 131Z again.

The air flow control plate 131C is formed with an air flow blowing opening 131W facing the transport path 131X, and the air flow blowing opening 131W is formed in the air flow controlling plate 13.
It communicates with the air flow communication part 131Ca provided in 1C. This air flow communication path 131Ca is used as a sorting block 131.
The air flow introducing hole 131Aa of A
A pipe such as an air tube connected to the airflow control valve 134 is connected to the inside of 31Aa. Therefore, the gas supplied from the gas supply unit 136 is transferred from the air flow blowing port 131W through the air flow introduction hole 131Aa and the air flow communication unit 131Ca when the air flow control valve 135 is opened.
It is configured to be sprayed on 31X.

As described above, since the origin sensor 131Z is configured to detect a component at the position where the transport direction of the transport path 131X changes, a pair of front and rear components P are continuously in close contact with each other. Even if they are conveyed, a gap is formed between the pair of parts P at the position where the conveying direction changes, so that the origin sensor 131Z can detect the front and rear parts P, respectively. However, as long as the front and rear parts P are not in close contact with each other, it is not necessary to provide the above-described change in the transfer direction of the transfer path 131X.

In the present embodiment, as described above, in the component selection unit 131, the selection block 1
Since the sensor plate 131B having the discrimination sensor 131Y attached thereto is attached to 31A, the sensor plate 13 can be easily used when different sensors are used or when the detection position of the discrimination sensor 131Y is changed.
There is an advantage that 1B can be exchanged. Also,
Since the joint between the sorting block 131A and the sensor plate 131B is arranged on the transport path 131X,
There is also an advantage that the opening 131Ba provided in the transport path 131X can be easily processed by groove processing or the like.

Further, in the present embodiment, as described above, in the component selection unit 131, the selection block 1
Since the airflow control plate 131C provided with the airflow blowing port 131W is attached to 31A, there is an advantage that the position of the airflow blowing port 131W can be easily changed only by replacing the airflow controlling plate. Further, the airflow communication unit 1 provided in the sorting block 131A so that it can be handled even if the position of the airflow blowing port 131W is changed.
31Ca is configured to be wider than the airflow blowing port 131W when viewed in the extension direction of the transport path 131X. The above advantages are
Usually, it is necessary to change the distance between the origin sensor 131Z and the airflow blowing opening 131W depending on the length L of the component P, the difference in the conveying speed, and the like.
It is particularly effective when changing the shape and size of the conveyed parts, when changing the conveying speed, when adjusting the sorting accuracy, and the like.

Detection position of the origin sensor 131Z (vertex part 1
The position Gs between the position (on 31Xa) and the position where the airflow is blown from the airflow blowing port 131W (the front position of the airflow blowing port 131W) is equal to the length L of the component P that has been transported in the normal posture in the transport direction. It is preferably 1 to 2 times, preferably 1.2 to 1.8 times. In the case of this embodiment (illustrated example), the interval is approximately 1.5 times the length L of the component.
If this interval becomes larger than the above range, the origin sensor 1
Since the time required for the component P to reach the front of the airflow blowing opening 131W after being detected by 31Z and the transport distance are long, a timing deviation from airflow control is likely to occur. Further, if the interval is smaller than the range, the timing of airflow control is likely to be delayed from the arrival timing of components.

The width Wb of the air flow blowing port 131W in the carrying direction is preferably within the range of 1/4 to 3/4 of the length L of the component P. In the case of this embodiment (illustration example),
The interval is about 1/3 of the length L of the component. When the width of the airflow blowing port 131W becomes larger than the above range, the possibility that the next component P that is subsequently conveyed is also involved becomes high. Further, when the width of the airflow blowing port 131W is smaller than the above range, it becomes difficult to apply a sufficient removal pressure to the component P to remove the component P from the transport path 131X, and the required gas supply pressure must be increased. Moreover, the response speed of the air flow is also reduced.

FIG. 1 is a timing chart showing the operation timing of the first embodiment of the component sorting apparatus. In FIG. 1, the discrimination signal D is the discrimination sensor 131Y as described above.
Is a detection signal based on the output of the origin sensor 131Z, and the origin signal S is a detection signal based on the output of the origin sensor 131Z.
Is a control signal output from the controller 133. Here, when the origin signal S becomes H (specifically, at the timing of the rising edge of the origin signal S), the state of the component P is determined by whether the determination signal D is H or L.

In this embodiment, the control signal C is usually used.
Is H (high potential; ON) and the airflow is being blown. At this time, when it is determined that the determination signal D is H and the component P is the good product in the first state when the origin signal S becomes H, the control signal C is changed according to the passage timing indicated by the origin signal S. L (low potential; OFF),
Airflow is stopped. More specifically, when the determination signal D becomes H and it is determined that the component P is a good product, the timing of the falling edge (H → L) of the origin signal S is used as a reference,
The control signal C changes from H to L. In the present embodiment, the delay time Td (for example, 5 m
After about s), the control signal C switches to L, and the airflow emitted from the airflow blowing port 131W is stopped.

As described above, the stop period in which the air flow remains stopped when the air flow is temporarily stopped is set to a preset time T0 when the next component does not arrive.
Becomes However, the second time before the predetermined time T0 elapses
When the next component which is determined to be defective arrives, the control signal C is returned again in accordance with the passage timing of the next component P.
Becomes H and the blowing of the airflow is restarted. In this case, the stop period is a variable time T1 that changes according to the passage timing of the next component. The preset time T0 is
It is preferable that the time is set to about 1.5 to 2.5 times the expected time until the component finishes passing through the airflow blowing port (calculated based on the average value of the expected transport speed of the component). For example, if the estimated time is about 40 ms, 100 m
It is about s. If the predetermined time T0 is shorter than the above range, the possibility of rejecting non-defective products increases, and conversely, if the predetermined time T0 is longer than the above range, the advantage of the present embodiment obtained by controlling the stop point of the air flow is exhibited. It gets harder.

Regarding the timing of restarting the air flow in this embodiment, more specifically, when the origin sensor 131Z detects the next part P which is in the second state and is determined to be defective, and the origin signal S becomes H. Rising edge (L →
H), the control signal C changes from L to H.
become. In the present embodiment, the control signal C is immediately switched from L to H in association with the rising edge of the origin signal S, and the blowing of the airflow is restarted.

If a part P judged to be non-defective in the first state arrives and the air flow is stopped, then a part P judged to be non-defective in the first state arrives again, the part P If the arrival interval of P is longer than the predetermined time T0, the airflow is once again restarted, but if the arrival interval of the part P is shorter than the predetermined time T0, the air flow remains stopped until the next part finishes passing. Become.

In the present embodiment, even if the component P passes, the control signal C remains H and the airflow is continuously blown unless it is determined by the determination signal D that the product is a good product. That is, the airflow is temporarily stopped only when the non-defective part P passes by the airflow blowing port 131W.

By the way, in recent years, the conveying speed of parts has been increasing, so it is necessary to secure a certain distance between the position where the origin sensor detects passage of the part and the position where the air flow is blown. If the interval is secured in the above, a certain degree of deviation is likely to occur between the timing at which the component reaches the blowing position of the air flow and the timing at which the air blowing is performed due to variations in the transport speed of the components. Correspondingly, if the blowing time of the airflow is lengthened, the possibility that parts which are not defective before and after the defective parts may be eliminated when the conveyance density is high, and it becomes difficult to reliably select the parts.

In this embodiment, the air flow is stopped in consideration of the arrival timing of the non-defective part P. In this case, when the airflow control valve 135 is closed, the airflow blowing from the airflow blowing port 131W onto the transport path 131X is substantially stopped in a short time. This is because the specific gravity of the gas is light, so the inertia is also small, and when the pressure on the upstream side decreases, the flow velocity on the downstream side rapidly decreases due to air resistance. Therefore, within a very short time after closing the airflow control valve 135. This is because the gas loses its driving force. On the other hand, when controlling the start point of the air flow blowing as in the conventional case, since the gas is a compressible fluid, even if the air flow control valve 135 is opened, it takes time until the air pressure near the air flow blowing port 131W increases. Therefore, a certain amount of time is required until the blowing of the airflow from the airflow blowing port 131W substantially starts.

Therefore, in the method of this embodiment, the air flow is temporarily stopped only when the non-defective product passes, so that the defective product can be more reliably transferred than the conventional one.
It can be excluded from above 1X, and the response speed of airflow control can be significantly increased compared to the case of the conventional method, so that a non-defective product can be reliably passed therethrough. As a result, it is possible to significantly improve the sorting accuracy as compared with the conventional component sorting, and it is not necessary to sort the components in multiple stages as shown by the dotted line in FIG.

Further, in the case of the present embodiment, the blowing of the air flow is restarted when the origin sensor detects the passage of the next component P which is determined to be defective in the second state. Since the air flow remains stopped until the parts are sent, non-defective products can be passed through more reliably. In particular, in the present embodiment, the control signal C is switched based on the rising edge of the origin signal S, so that the blowing of the airflow can be resumed earlier for the next part P. This is, for example, continuously in the case where another component P exists between the component P determined to be a non-defective product and the component P detected next, that is, in a state of being in contact with the component P determined to be a non-defective product. When the other component P is not detected by the origin sensor due to the passage of the other component P to, the airflow can be blown to the other component P, and the other component P ( There is an advantage that it is possible to exclude a good product or a defective product).

Further, in this embodiment, since the control signal C is switched after the delay time Td from the falling edge of the origin signal S, the control signal C is misswitched due to the chattering of the origin signal S (the reality of the part P). It is possible to prevent the control signal C from being switched earlier than in the passing state, and to prevent the occurrence of an error that the airflow is stopped earlier.

In this embodiment, in order to pass the non-defective product as described above, the stop time of the air flow is controlled. Therefore, the defective product can be reliably excluded and the stop time of the air flow can be reliably eliminated. Since the control has a quick response as described above, there is an advantage that even if the distance between the air flow control means such as the air flow control valve 135 and the air flow blowing opening 131W is lengthened, no trouble occurs.

FIG. 2 is a timing chart showing a control mode different from the above embodiment. Also in this control mode, the airflow is normally blown, and the airflow is stopped only when the non-defective product in the first state arrives, similarly to the above embodiment. Further, similarly to the above, the restart of the blowing of the airflow is performed after the variable time T2 according to the origin signal S caused by the passage of the next component P which is determined to be defective in the second state, or When the part P does not arrive, the process is performed after the lapse of the predetermined time T0 similar to the above. However, this control mode is different from the above embodiment in that the control signal C is switched based on the falling edge of the origin signal S corresponding to the next part P. That is, as soon as the origin signal S falls, the control signal C is inverted and the blowing of the airflow is restarted.

In this control mode, after passing the good or bad part P, the next part P determined to be defective is detected by the origin sensor 131Z, and the tail end of the part P goes out of the detection range. At the timing, the blowing of the airflow is restarted. In this control mode, in the same situation, the variable time T2, which is a parameter that determines the stop period of the air flow, is longer than that in the above-described embodiment (variable time T1). The non-defective product can be passed through, and the probability of rejecting the non-defective product can be reduced.

In the above embodiment, the origin sensor 131Z.
Has a function of individually detecting the components P and associating the determination result of the determination sensor 131Y with each component, and constitutes a part of the determination means, and also serves to measure the passage timing of the components P. It also constitutes a component passage detecting means. However, in this case, the origin sensor 1
There may be a case where it is necessary to set the timing for stopping the air flow with respect to the origin signal S of 31Z with a timer or the like. On the other hand, as shown in FIG. 3, a dedicated timing sensor 131V for measuring the passage timing of the component P may be provided. In this case, the air flow may be controlled to stop in accordance with the detection timing of the timing sensor 131V as the component passage detection means. Since the detection position of the timing sensor 131V is provided closer to the airflow blowing port 131W than the origin sensor 131Z,
It is possible to further shorten the air flow stop period and further improve the sorting accuracy. The position of the timing sensor 131V in the illustrated example is the timing sensor 131V.
When it begins to detect the component P (eg, due to the rising edge of its timing signal), it inverts the control signal C,
A position suitable for performing control such as stopping the air flow is shown.

When the timing sensor 131V is provided separately from the origin sensor 131Z as described above, the timing of stopping the air flow is not determined based on the origin signal S as shown in FIGS. 131V
Is determined by the timing signal output by the. on the other hand,
Regarding the origin signal S of the origin sensor 131Z, the individual parts P are recognized in association with (in association with) the discrimination signal D,
It can be used to determine. Further, the origin signal S of the origin sensor can be used as a trigger for restarting the blowing of the airflow after the airflow is temporarily stopped.

The component selection device and the component supply device according to the present invention are not limited to the above-mentioned illustrated examples, and it goes without saying that various modifications can be made without departing from the scope of the present invention. . For example, in the above embodiment, the vibration type component supply device and the component selection device applied to the vibration type component supply device have been described, but the present invention is not limited to such a vibration type component supply device and the components applied thereto. is not. Further, in the above embodiment, the quality of the component is determined based on the quality of the component posture, but the quality of the component is selected based on the determination criteria other than the posture such as the shape and size of the component and other external defects. You may do it. further,
It can also be used in the case of selecting components that are generally in mutually different states such as the first state and the second state, such as simply selecting two types of components instead of the quality of the components.

[0051]

As described above, according to the present invention,
It is possible to reduce mistakes in selecting parts. In particular, the probability of passing a defective product as it is can be reduced.

[Brief description of drawings]

FIG. 1 is a timing chart showing a control mode in an embodiment of a component selection device and a component supply device according to the present invention.

FIG. 2 is a timing chart showing another control mode in the embodiment of the component selection device and the component supply device according to the present invention.

FIG. 3 is a partial inner view (a) and a partial cross-sectional view (b) showing a structure inside the component selection unit in the embodiment.

FIG. 4 is a schematic configuration plan view showing an overall configuration of a component supply device.

FIG. 5 is an explanatory view schematically showing a sorting structure in a conventional component sorting apparatus and a timing chart showing a control mode of the sorting structure.

[Explanation of symbols]

100 ... Parts feeding device, 110 ... Bowl type feeder, 120 ... Linear feeder, 130 ... Parts sorting device, 131 ... Parts sorting unit, 132 ...
・ Sensor amplifier, 133 ... Control device, 134 ...
Drive circuit, 135 ... Air flow control valve, 136 ... Gas supply section, 131X ... Conveyance path, 131Y ... Discrimination sensor, 131Z ... Origin sensor, 131A ... Sorting block, 131B ...・ Sensor plate, 131C ・
..Air flow control plate, 131V ... Timing sensor, 131W ... Air flow blowing port

Continued front page    (72) Inventor Atsushi Yamamoto             1010-6 Hirookagoharado East, Shiojiri City, Nagano Stock             Company Daishin F term (reference) 3F080 AA13 BA01 BA02 BB05 BC07                       BD07 BF04 CB02 CE11 DA15                       DB01 EA09 EA15 FA01 FB01                 3F081 AA22 BA01 BB05 BC13 BD01                       BF01 CC18 DB01 EA09 EA15                       FA01 FB01

Claims (6)

[Claims] 1. A determination means for determining the state of a component moving on a transport path, and the component in the first state is allowed to pass through the transport path as it is, and an airflow is blown to the component in the second state for selection. And a component sorting unit for normally blowing the airflow onto the conveyance path, and temporarily stopping the airflow when the component determined to be in the first state by the determination unit passes through. And a control means. 2. The component passage detecting means for knowing the passage timing of the component determined to be the first state by the determining means, wherein the air flow control means has the component passage detecting means detected by the component passage detecting means. The component sorting apparatus according to claim 1, wherein the airflow is stopped in accordance with a passage timing of the component determined to be in the first state. 3. The air flow control means sets the passage timing of the next component immediately after the component determined to be in the first state by the component passage detection means, to the next component determined to be in the second state by the component passage detection means. Accordingly, the blowing of the airflow is restarted before the arrival of the next component, and the component sorting device according to claim 2. 4. A component supply device that supplies a component by moving the component along a transport path, the component aligning means for aligning the component and sending the component onto the transport path, and a state of the component moving on the transport path. Judgment means for judging, component selection means for allowing the parts in the first state to pass through the conveyance path as they are, and blowing an air flow to the parts in the second state for selection, and in the normal state, the air flows for the conveyance of the parts. An air flow control unit configured to be blown onto the road and temporarily stopping the air flow when the component determined to be in the first state by the determination unit passes by the component supply device. . 5. The component passage detection means for knowing the passage timing of the component determined to be the first state by the determination means, wherein the air flow control means has the first state by the component passage detection means. The component supply apparatus according to claim 4, wherein the air flow is stopped in accordance with the passage timing of the component determined to be. 6. The airflow control means sets the passage timing of the next component immediately after the component determined to be in the first state by the component passage detection means, to the next component determined to be in the second state by the component passage detection means. Accordingly, the blowing of the airflow is restarted before the arrival of the next component, and the component supply device according to claim 5.