JPH08153996A - Parts identifying device for mounting machine - Google Patents

Abstract

PURPOSE: To improve the mounting efficiency of a parts mounting machine by improving the freedom of a parts identifying device in adjustment of the parts image fetching speed. CONSTITUTION: A head unit 5 provided with a plurality of parts suction nozzle members arranged in parallel in the X-axis direction simultaneously transfers and mounts a plurality of parts to and on a printed board 3 from a parts supply section 4 and a sensor unit 23 equipped with a line sensor elongated in the Y-axis direction is provided on the moving route of the unit 5. By moving the head unit 5 above the sensor unit 23 in the X-axis direction at a prescribed direction corresponding to the kind of the parts, the images of the parts attracted to the head 5 by suction are successively fetched from the sensor and the parts are recognized based on the fetched picture data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting machine for adsorbing a small piece component such as an IC and mounting it at a predetermined position on a printed circuit board by a head unit having a plurality of nozzle members. The present invention relates to a component recognizing device for a mounter that recognizes a component sucked by a member.

[0002]

2. Description of the Related Art Conventionally, a head unit having a nozzle member for mounting a component sucks a component such as an IC from a component supply section and transfers it onto a printed circuit board that has been positioned, and places it on a predetermined position of the printed circuit board. A mounting machine adapted to be mounted is generally known. Further, recently, in order to improve the mounting efficiency, a mounting machine has been proposed in which a plurality of nozzle members are arranged side by side on a head unit so that a plurality of components can be transferred at one time.

In such a mounting machine, there is some variation in the position of the component when the component is sucked by the nozzle member, and it is required to correct the mounting position according to the displacement of the component suction position. Therefore, the suctioned component is recognized to detect the displacement of the suction position with respect to the nozzle member, and the abnormality of the component, for example, if the component has a lead, the lead is broken.

As an apparatus for recognizing such a part, for example, an area sensor camera is installed on the base of a mounting machine,
A mounting machine has been proposed which employs a method of moving a head unit after picking up a component onto the area sensor camera to capture a component image.

[0005]

As described above, in the device for recognizing a component by using the area sensor camera, the head unit after the component suction is mounted on the area sensor camera irrespective of the type of the component due to the relation with the illumination or the like. Stop for a certain time,
It is required to capture an image of a part using strobe illumination during movement, and a fixed time is required when continuously recognizing the part adsorbed by each nozzle member of a head unit equipped with multiple nozzle members while moving. It is necessary to capture the part image for each. Therefore, it takes time to capture the same component image when continuously recognizing relatively simple-shaped components and when continuously recognizing complicated-shaped components.

However, since component recognition can be performed more easily and faster than a component having a simple shape, for example, in the case of a simple rectangular chip component, the speed of capturing a component image can be increased.
It is desirable from the viewpoint of increasing the mounting efficiency that the speed of capturing a component image can be adjusted according to the type of component. Especially, in a device in which a head unit is equipped with a plurality of nozzle members,
Since multiple types of parts may be adsorbed at one time, it is possible to improve the mounting efficiency in such a device by enabling continuous part recognition while adjusting the part image capture speed for each part as appropriate. Is possible and advantageous.

The present invention has been made in order to solve the above problems, and provides a component recognition device for a mounting machine, which can increase the mounting efficiency by increasing the degree of freedom in adjusting the speed of capturing a component image. Is intended.

[0008]

According to a first aspect of the present invention, there is provided a component recognizing device for a mounting machine, which has a plurality of component suction nozzle members arranged in parallel and is movable between a component supply side and a component mounting side. In a mounting machine equipped with the head unit, the head unit is moved relative to the line sensor in a state where the line sensor arranged in the movement path of the head unit and the head unit and the line sensor are associated with each other. The driving means and the component recognizing means for recognizing the respective components based on the component images adsorbed by the nozzle members during the relative movement of the head unit with respect to the line sensor are provided.

A component recognition device for a mounting machine according to a second aspect is
The component recognizing device according to claim 1, wherein the line sensor is arranged in a direction orthogonal to an arrangement direction of the nozzle members, and the component recognizing unit displays a component image of each component sucked by each nozzle member. It is configured so as to sequentially take in.

A component recognizing device for a mounting machine according to a third aspect is
The component recognizing device according to claim 2, wherein the component recognizing means captures all the component images adsorbed by the nozzle members with respect to one time relative movement of the head unit with respect to the line sensor. It is configured to perform a process for recognizing a part related to an image.

A component recognizing device for a mounting machine according to a fourth aspect is
3. The component recognizing device according to claim 2, wherein the component recognizing means relates to a component unit which is previously captured during capturing of a component image for one relative movement of the head unit with respect to the line sensor. It is configured to perform processing for recognition.

[0012]

According to the first aspect of the invention, the head unit relatively moves on the line sensor after the parts are mounted, so that the part images of all the parts adsorbed by the head unit during this moving period are displayed. Each component is captured and recognized.

According to the second aspect of the present invention, the head unit relatively moves on the line sensor after the mounting of the components, so that the component images of the respective components sucked by the nozzle members are sequentially captured. Then, the parts are recognized.
Therefore, by adjusting the moving speed of the head unit according to the type of the component passing over the line sensor, that is, the type of the component image capturing target, the efficiency of capturing the component image by the line sensor is enhanced.

According to the third aspect of the invention, it is possible to perform the process for component recognition by utilizing the period during which the head unit is moved to the component mounting side.

According to the fourth aspect of the present invention, when only parts having relatively simple shapes are mounted, the parts for which the process for recognizing the parts is completed within the time for capturing the one-part image, are almost mounted. It becomes possible to recognize all the parts only by taking in the part image, and thus the part recognition efficiency is improved.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of a component recognition device according to the present invention will be described with reference to the drawings.

1 and 2 show the structure of a mounter in which the component recognition apparatus according to the present invention is mounted. As shown in the figure, a conveyor 2 for conveying a printed circuit board is arranged on a base 1 of the mounting machine, and the printed circuit board 3 is conveyed on the conveyor 2 and stopped at a predetermined mounting work position. It has become. A component supply unit 4 is arranged on the side of the conveyor 2. The component supply unit 4 is provided with a feeder for supplying components, for example, a plurality of rows of tape feeders 4
a.

A head unit 5 for mounting components is installed above the base 1. The head unit 5 is movable across the component supply unit 4 and the component mounting unit where the printed circuit board 3 is located.
It can move in the axial direction (direction of the conveyor 2) and the Y-axis direction (direction orthogonal to the X-axis on the horizontal plane).

That is, a fixed rail 7 in the Y-axis direction and a ball screw shaft 8 rotatably driven by a Y-axis servomotor 9 are arranged on the base 1, and the head unit is mounted on the fixed rail 7. A support member 11 is arranged, and a nut portion 12 provided on the support member 11 is screwed onto the ball screw shaft 8. In addition, the support member 11 has an X
An axial guide member 13 and a ball screw shaft 14 driven by an X-axis servomotor 15 are arranged, and the head unit 5 is movably held by the guide member 13.
A nut portion (not shown) provided on the head unit 5 is screwed onto the ball screw shaft 14. And
By the operation of the Y-axis servomotor 9, the supporting member 11 is moved to Y
While moving in the axial direction, the head unit 5 moves in the X-axis direction with respect to the support member 11 by the operation of the X-axis servomotor 15.

Further, the Y-axis servomotor 9 and the X-axis servomotor 15 are provided with position detection devices 10 and 16 each composed of a rotary encoder, by which the moving position of the head unit 5 is detected. It is like this.

The head unit 5 is provided with a nozzle member 20 for adsorbing chip components, and in this embodiment, eight nozzle members 20 are provided side by side in the X-axis direction as shown in FIG. Each nozzle member 20 moves up and down with respect to the frame of the head unit 5 (moves in the Z-axis direction).
Also, rotation around the nozzle center axis (R axis) is possible, and the Z axis servo motor and the R axis servo motor (not shown) are operated. Further, each of these servo motors is provided with a position detecting device so that the moving position of each nozzle member 20 can be detected.

Further, a sensor unit 23 for taking in a component image when recognizing a component attracted to each nozzle member 20 of the head unit 5 is provided on the side of the component supply section 4. ing.

The sensor unit 23 includes a large number of LEDs.
And a sensor body 23b including a line sensor 24. The line sensor 24 is an image sensor in which CCD solid-state image pickup devices 24a are arranged side by side in a direction (Y-axis direction) orthogonal to the arrangement direction of the nozzle members 20, as shown in FIG. The component image is one-dimensionally captured via the slit portion formed.

At the time of mounting, after the components are sucked by the nozzle members 20 of the head unit 5, the arrangement direction of the elements 24a of the line sensor 24 (main scanning direction; Y).
The line sensor 2 is moved by moving the head unit 5 at a predetermined speed in a direction (sub-scanning direction; X-axis direction; arrow S direction in FIGS. 1 and 2) orthogonal to the axial direction).
4, the image in the main scanning direction of the component sucked by each nozzle member 20 is sequentially taken in in the sub scanning direction and output to the image processing unit 30 as a predetermined image signal. Then, when the head unit 5 completely passes over the sensor unit 23, images of all the adsorbed components are captured.

The relative moving speed of the head unit 5 with respect to the sensor unit 23 is set according to the type of parts by a controller (not shown) of the mounting machine. That is, for a component such as a simple rectangular chip component that can be recognized relatively easily, the moving speed of the head unit 5 with respect to the sensor unit 23 is increased, while a component recognition such as a chip component having many leads is performed. For parts that are relatively difficult to
The moving speed of the head unit 5 with respect to 3 is reduced.

On the base 1 of the mounting machine, the head is located in the movement path of the head unit 5 for component recognition, that is, at a predetermined position on the left side of the movement path of the head unit 5 with respect to the sensor unit 23. A head detection sensor 25 (shown in FIG. 4) for detecting the unit 5 is provided, and at the time of component recognition described later, the head unit 5 is detected by the head detection sensor 25 so that the component image by the line sensor 24 is detected. The timing to start capturing is designed.

Although the mounting machine configured as described above does not have an overall configuration, it is equipped with a control device having a microcomputer as a component, and the Y-axis and X-axis servomotors 9 and 15 and the head are provided. Each suction nozzle 20 of the unit 5
The Z-axis servo motor, the R-axis servo motor, the line sensor 24 of the sensor unit 23, and the like are all electrically connected to the control device for centralized control.

The control device is also provided with an image processing section 30 as shown in FIG. This image processing unit 30
Controls the capture of the component image by the sensor unit 23 and recognizes the component based on the captured image data. The image recognition section 31, the clock signal generation means 32, the start signal generation means 33, It has one component end signal generation means 34 and all component end signal generation means 35.

The clock signal generating means 32 comprises a frequency dividing counter 40, a comparator 41, a frequency dividing register 42, and first and second gate circuits 43 and 44.
The clock signal in the image processing unit 30 is generated and output by dividing the pulse train signal output from the position detection device 16.

Specifically, the number of pulses of the pulse train signal output from the position detecting device 16 is counted by the frequency dividing counter 40, and the frequency dividing register 42 is calculated in the comparator 41.
The count number N set in advance is compared. When the set count number N is reached, the comparator 4
A signal of 1 to 1 pulse is output.

That is, with the head unit 5 corresponding to the line sensor 24, the X-axis servomotor 15
The head unit 5 is moved relative to the line sensor 24 by the driving of the (driving unit), and the position detection device 16 is moved along with the movement of the head unit 5 in the X-axis direction at this time.
The clock signal is generated by dividing the pulse train signal output from the circuit 1 / N times.

The generated clock signal is output from the comparator 41 to the first and second gate circuits 43 and 44. The head detection sensor 2 is provided in the first gate circuit 43.
The detection signal from 5 is input, and the clock signal is output from the first gate circuit 43 to the start signal generating means 33 in response to the input of the signal.
The second gate circuit 44 has a start signal generating means 33.
A capture start signal described later is output from the second gate circuit 44 in response to the input of the signal.
To output the clock signal to the sensor unit 23 and the one-part end signal generating means 34.

The start signal generating means 33 comprises a fetch start counter 46, a comparator 47 and a fetch start register 48. The clock signal output from the first gate circuit 43 is fetched start counter 4 in FIG.
The count is set at 6, and the comparator 47 compares it with the count number preset in the fetch start register 48. This count number is set so as to correspond to the moving distance from when the head unit 5 is detected by the head detection sensor 25 until when the head unit 5 reaches immediately before the sensor unit 23. When the set number of counts is reached, the fetch start signal is output from the comparator 47 to the second gate circuit 44.
By thus outputting the capture start signal to the second gate circuit 44, the output of the clock signal to the sensor unit 23 is started as described above, and the components by the line sensor 24 are synchronized with this clock signal. Image acquisition is started.

The one-component end signal generating means 34 comprises a line number counter 49, a comparator 50 and a line number register 51, and the second gate circuit 44.
The above clock signal output from the line number counter 4
The number is counted at 9, and the comparator 50 compares it with the count number preset in the line number register 51. When the set number of counts is reached, the comparator 50 indicates to the image recognition unit 31 and the all-component end signal generation means 35 that the one-component end signal, that is, that the line sensor 24 has finished capturing the one-component part image. It is designed to output a signal.

The count number set in the line number register 51 is set to a value capable of capturing a one-part image based on the type of parts to be recognized.

The all-component end signal generating means 35 comprises a number-of-parts counter 52, a comparator 53 and a number-of-parts register 54, and outputs the one-part end signal output from the one-part end signal generating means 34 to the number of parts. Counter 5
The count is 2, and the comparator 53 compares the count with a preset count in the component count register 54. When the set number of counts is reached, the comparator 53 outputs to the image recognition unit 31 an all-component end signal, that is, a signal indicating that the line sensor 24 has finished capturing all the component images. .

The image recognition section 31 writes the image data taken in by the line sensor 24 in an image memory in synchronization with the clock signal, and performs a predetermined image processing on the image data to recognize the parts. It is a thing. Therefore, the image memory is the head unit 5
In order to be able to write the component image data of all the components that are sucked by, the storage area has a number corresponding to the number of nozzle members 20, that is, first to eighth storage areas. In the component recognition by the image recognition unit 31, the first processing mode in which the images of all the components adsorbed by the nozzle members 20 are once captured and then the respective components are recognized, and the component images are captured. While performing, it is possible to selectively execute the second processing mode in which the recognition of the parts related to the already-acquired parts image is performed in parallel, and the operator should operate the operation panel (not shown) or mount it. These modes are selectively executed by automatic control according to the type of parts.

Next, the component recognition operation of the mounting machine configured as described above will be described.

When the mounting operation is started in the mounting machine, the head unit 5 is moved to the component supply section 4, and the components are picked up by the nozzle members 20. Then, when the suction of the components is completed, the head unit 5 is moved with respect to the sensor unit 23 for component recognition. Specifically, after the head unit 5 is set at the left end of the movement path with respect to the sensor unit 23, the head unit 5 is moved rightward (direction of arrow S in FIGS. 1 and 3) from this position. Then, as the head unit 5 passes over the sensor unit 23, the component images of the components adsorbed by the nozzle members 20 are sequentially captured by the line sensor 24, and the component recognition is performed based on the captured image.

Here, in the component recognition of the mounting machine, the first and second components are recognized in the image recognition unit 31 as described above.
Since the processing modes are selectively executed, the component recognition operation will be described below for each of these modes.

First, the case where the first processing mode is executed will be described. When the first processing mode is executed, component recognition is performed according to the flowchart shown in FIG.

In the first processing mode, when the head unit 5 starts to move for the purpose of component recognition as described above and the head unit 5 is detected by the head detecting sensor 25, the start signal generating means 33 causes a clock signal. Counting of the clock signal output from the generation means 32 is started. And when the predetermined count is reached,
A start signal generating means 33 outputs a start signal for capturing a component image to start capturing the component image by the line sensor 24 (steps S1 to S3).

When the capturing of the component image is started in this manner, the image of the suction component in the main scanning direction is sequentially captured in the sub scanning direction at the timing synchronized with the clock signal.
This image data is written in the first storage area of the image recognition unit 31. In addition, the one-component end signal generating means 34
In step 1, the counting of the clock signal is started, and when a predetermined count is reached, that is, when the image capturing of one component is completed, the one-component end signal generating means 34 outputs a one-component end signal (steps S4 to S4). Step S6).

Then, the all component end signal generating means 35
In step 1, a one-component end signal is counted, and whether or not this count number has reached a predetermined count number, that is, whether or not the component images of all the components adsorbed by the head unit 5 have been completely captured. Is determined (step S
7, S8).

If the acquisition of the component images of all the parts is not completed (NO in step S8), the process proceeds to step S4 and the component images are sequentially acquired. At this time, in the image recognition unit 31, in response to the input of the one-component end signal output from the one-component end signal generating means 34, the first captured image data of the component
The image data of each component is written while switching the storage area in which the image data is written for each component, such as writing the image data of the second captured area to the image data of the second captured component.

On the other hand, when the acquisition of the component images of all the components is completed in step S8 (YES in step S8), the all component end signal is sent from the all component end signal generation means 35 to the image recognition unit 31. Is output. And
When the all component end signal is input to the image recognition unit 31, the image recognition unit 31 reads the image data of each component written in each of the first to eighth storage areas, and a predetermined image is read in the image data. By performing the processing, each component adsorbed to the head unit 5 is recognized, and the present flowchart ends.

Next, the case where the second processing mode is executed will be described. When the second processing mode is executed, component recognition is performed according to the flowchart shown in FIG.

Steps S11 to S14 of the second processing mode
In step S1 to S4 of the first processing mode
Processing similar to is performed. That is, based on the detection of the head unit 5 by the head detection sensor 25, the line sensor 24 starts capturing the component image,
The taken-in image data is written in the storage area of the image recognition unit 31, and the one-part end signal generating means 3 is also used.
At 4, the counting of the clock signal is started.

In step S15, the one-component end signal generating means 34 determines whether or not the count number of the clock signal has reached a predetermined count number, that is, whether or not the image capturing of the component is completed. It

Here, if the acquisition of the part image of the part has not been completed, that is, if the acquisition is in progress (NO in step S15), the process proceeds to step S19, and the image recognition unit 31 already receives the image. It is determined whether or not the data is stored. At this time, if the image data has not been written yet, that is, if the first component image is being captured (NO in step S19), the process proceeds to step S15. On the other hand, when the image data is already written, that is, when the second to eighth component images are being captured (YE in step S19).
In S), the image recognition unit 31 reads out the already written image data, and performs predetermined image processing on the read image data to recognize the parts related to the written image data. Then, the process proceeds to step S15. In other words, when the component image of the second component is being captured, the first component whose component image has already been captured is recognized during the capture of this image. During the capture of the Nth component image, the component recognition of the component whose (N-1) th component image has been captured is performed.

On the other hand, if the acquisition of the part image of the part has been completed (YES in step S15), the process proceeds to step S16, and the one-part end signal generating means 34 outputs the one-part end signal.

Then, the all component end signal generating means 35
In step 1, a one-component end signal is counted, and whether or not this count number has reached a predetermined count number, that is, whether or not the component images of all the components adsorbed by the head unit 5 have been completely captured. Is determined (step S
17, S18).

Then, if the acquisition of the part images of all parts is not completed (NO in step S18),
In step S14, the component images are sequentially captured for the components. At this time, as described above, since the component recognition related to the (N−1) th component image captured during the capture of the Nth component image, the image recognition unit 31 The image data of each part to be inserted is
The data is alternately stored in the first and second storage areas according to the order of capture. That is, while data is being written in one storage area, the image data in the other storage area is read out and a process for component recognition is performed.

On the other hand, when the component images of all the components have been captured in step S18 (step S1)
8 is YES), the all-component end signal is output from the all-component end signal generating means 35 to the image recognizing unit 31, whereby the remaining image data written in the image recognizing unit 31, that is, in the present embodiment. The image data of the eighth component is read out and subjected to predetermined image processing. Then, after the recognition of this part is performed, this flowchart ends.

As described above, according to the mounting machine of the above embodiment,
Since the head unit 5 picks up a plurality of parts and the head unit 5 is relatively moved with respect to the sensor unit 23, the picked-up parts images are sequentially taken in and the parts are recognized, so that an area sensor camera is used. It is possible to further improve the mounting efficiency, as compared with a device for recognizing a component.

That is, in the conventional apparatus for recognizing a part by using the area sensor camera, it is required to stop the part on the area sensor camera for a certain period of time and take in the part image. The same time was required for the image capturing even when the component was mounted, and the component having a complicated shape was mounted.

On the other hand, according to the apparatus of the above embodiment,
As described above, while moving the head unit 5 with respect to the sensor unit 23, the component images of a plurality of components that have been attracted are continuously captured, so that, for example, only components that are relatively easy to recognize are mounted. In such a case, by increasing the moving speed of the head unit 5 with respect to the sensor unit 23 to capture the component image, the capturing time of the component image can be shortened and the mounting efficiency can be improved. Further, when the head unit 5 simultaneously picks up a component of a simple shape and a component of a complicated shape which are relatively easy to recognize, the moving speed of the head unit 5 is set to the value of the component image acquisition of the component of the simple shape. By increasing only when, the component image can be efficiently captured.

As described above, according to the mounting machine of the above-described embodiment, the head unit 5 sucks a plurality of components at the same time, and the head unit 5 is attached to the sensor unit 23.
It is possible to capture each suction component image continuously while changing the moving speed of the component according to the type of component, that is, because the degree of freedom in adjusting the component image capturing speed during component recognition is high,
Compared to a device that recognizes a component using an area sensor camera, the component image can be captured more efficiently, and thus the mounting efficiency can be improved.

In the component recognition of the mounting machine of the above embodiment, the first processing mode for recognizing each component after once capturing the component images of all the components attracted to each nozzle member 20, and the component Since it is possible to selectively execute the second processing mode in which the recognition of the component relating to the component image already captured is performed in parallel while capturing the image,
This also improves the recognition efficiency of the parts.

That is, as such a part recognition process, a part image is taken in, image processing is performed on the taken image to recognize the part, and then the next part image is taken in to perform part recognition. A technique for recognizing a plurality of components while repeating the above process is conceivable.

In the case of this technique, when a component which requires a long time for component recognition, such as a component having a relatively complicated shape, is included, the time required from the component suction to the mounting is prolonged, which is preferable. Absent. However, in such a case, according to the first processing mode of the above-described embodiment, since the processing for component recognition is performed after all the component images of a plurality of components are captured, the head unit 5 prints from the sensor unit 23. The image data can be processed for component recognition by utilizing the period during which the image data is moved onto the substrate 3 and the period during which the component is mounted on the printed circuit board 3. Therefore, even when a component having a complicated shape or the like is included, the component recognition can be performed while suppressing the influence on the mounting efficiency.

Further, in the above technique, even in the case where only simple-shaped components that are relatively easy to recognize are mounted, the component image capturing time and the image processing time for the captured image are required for each component. Therefore, it is difficult to effectively reduce the time required from component suction to mounting. However, in such a case, according to the second processing mode, since the process for recognizing the component relating to the component image previously captured is performed during the capture of the component image, almost all the component image capture is performed. It is possible to recognize all the components in only time, and it is possible to greatly reduce the time required from the component adsorption to the mounting.

Therefore, by selectively executing the first processing mode and the second processing mode according to the type of the component sucked by the head unit 5, it becomes possible to improve the recognition efficiency of the component. As a result, the mounting efficiency of the mounting machine can be improved.

The mounting machine is an embodiment of the mounting machine to which the example of the component recognition apparatus according to the present invention is applied.
The specific structure can be appropriately changed without departing from the scope of the present invention. For example, in the image recognition operation of the image recognition unit 31 of the above embodiment, the first processing mode and the second processing mode
Although the processing modes can be selectively executed, the image recognition unit 31 is not necessarily configured to be able to selectively execute both modes, and the image recognition unit 31 is configured to execute only one of the modes. It doesn't matter. In this case, for example, the image recognition unit 3 is configured to execute only the second processing mode.
If 1 is provided, it is possible to deal with at least two storage areas for writing image data, which is advantageous in terms of hardware.

[0065]

As described above, according to the component recognition apparatus of the present invention, a plurality of components are sucked by a plurality of nozzle members provided in the head unit, and the head unit is relatively moved with respect to the line sensor. By moving, the component image of the component sucked by each nozzle member is captured and the component is recognized.

Therefore, in such a configuration, the line sensor is arranged in the direction orthogonal to the arrangement direction of the nozzle members, and the component recognition means sequentially takes in the component images of each component adsorbed by each nozzle member. According to this structure, by appropriately adjusting the moving speed of the head unit according to the type of the component to be recognized, the efficiency of capturing the component image by the line sensor can be improved, and as a result, the mounting efficiency can be improved. .

With respect to one time relative movement of the head unit with respect to the line sensor, after processing all the component images adsorbed by the nozzle members, the process for component recognition relating to each component image is performed. By doing so, it is possible to perform the processing for component recognition by utilizing the period during which the head unit is moved to the component mounting side.

Further, with respect to one relative movement of the head unit with respect to the line sensor, if the processing for recognizing the component relating to the component image previously captured is performed during the capturing of the component image, When components for which the process for component recognition is completed within the component image capture time, that is, components with a relatively simple shape are continuously mounted, all components are recognized almost by the component image capture time. It is possible to improve the recognition efficiency of parts.

[Brief description of drawings]

FIG. 1 is a plan view of a mounter to which an example of a component recognition device according to the present invention is applied.

FIG. 2 is a front view of the same.

FIG. 3 is an enlarged schematic view of an essential part showing a line sensor.

FIG. 4 is a circuit configuration showing an image processing unit.

FIG. 5 is a flowchart showing a first processing mode.

FIG. 6 is a flowchart showing a second processing mode.

[Explanation of symbols]

 1 Base 2 Conveyor 3 Printed Circuit Board 4 Component Supply Section 5 Head Unit 20 Nozzle Member 23 Sensor Unit 23a Illumination Section 23b Sensor Main Body 24 Line Sensor

Claims (4)

[Claims] 1. A mounter having a plurality of nozzle members for picking up components in parallel and provided with a head unit movable between a component supply side and a component mounting side, the mounting unit being arranged in a movement path of the head unit. A line sensor, a driving unit that relatively moves the head unit with respect to the line sensor in a state where the head unit and the line sensor are associated with each other, and a relative movement of the head unit with respect to the line sensor, A component recognizing device for a mounting machine, comprising: a component recognizing unit that recognizes each component based on a component image sucked by each nozzle member. 2. The line sensor is arranged in a direction orthogonal to the arrangement direction of the nozzle members, and the component recognizing means sequentially takes in component images of each component sucked by the nozzle members. The component recognition device for a mounter according to claim 1, wherein the component recognition device is configured. 3. The component recognizing means captures all the component images adsorbed by each nozzle member for one time relative movement of the head unit with respect to the line sensor, and then recognizes the component image related to each component image. The component recognition device for a mounting machine according to claim 2, wherein the component recognition device is configured to perform processing for. 4. The process for recognizing a component relating to a component image previously captured during capturing of a component image with respect to one time relative movement of the head unit with respect to the line sensor. The component recognition device for a mounting machine according to claim 2, wherein the component recognition device is configured to perform.