JPH0883976A - Adhesive coating apparatus - Google Patents

Abstract

PURPOSE: To obtain an adhesive coating apparatus by which an adhesive with which a blank part on a board is coated sacrifically can be recognized precisely and visually. CONSTITUTION: A coating head, a CCD camera and the like are installed at a frame 24 for a dispensing unit 19. A movement base 32 is installed at the frame 24 so as to be movable up and down, and a stamp 35 which is composed of a porous material is installed at a head part 34 at its lower end. An ink passage 36 which communicates with the stamp 35 is installed at the head part 34. An ink supply mechanism 37 which is composed of a liquid tank 38 storing a white ink I, of a tube 40 and of a shutter part 39 is connected to the ink passage 36. An air cylinder 41 which moves the movement base 32 and the stamp 35 up and down is installed. Before an adhesive is applied, a blank part on a board 13 is coated with the ink I by means of the stamp 35, and its coated part is coated with the adhesive so as to be photographed by the CCD camera.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive application device for applying an adhesive to a predetermined application point on a substrate by an application head.

[0002]

2. Description of the Related Art In recent years, an adhesive applying device has been provided for applying an adhesive for temporarily fixing electronic parts to a printed circuit board on which electronic parts are mounted. An example of this type of adhesive application device is shown in FIG. That is, a substrate transport path 3 for transporting the substrate 2 is provided on the base 1, and a substrate transport mechanism 4 for loading and unloading the substrate 2 at a work position located in the middle of the substrate transport path 3. Is provided.

An XY moving mechanism 6 is provided on the base 1 for freely moving the dispensing unit 5 above the substrate 2 at the working position. In this case, the dispensing unit 5 includes four coating heads 7 and a head drive mechanism 8 for selectively moving the coating heads 7 up and down. further,
The dispensing unit 5 has a C with a reflective illumination light source.
A CD camera 9 is provided.

Each of the above-mentioned mechanisms is controlled by a control device such as a microcomputer, whereby the substrate 2 is carried into a work position in the middle of the substrate transfer path 3 and a predetermined coating of the substrate 2 is carried out. The operation of moving the predetermined coating head 7 above the point and lowering the coating head 7 to apply the adhesive is automatically and repeatedly executed. The visual recognition device composed of the CCD camera 9 and the like is used for detecting a recognition mark on the substrate 2 and for visual recognition of a waste coating adhesive described later.

[0005]

By the way, in performing the adhesive application work as described above, when a certain amount of time has passed from the previous application work, the application work is performed as it is, and the adhesive is applied. The applied amount of the agent may be too small or too large. Therefore, conventionally, for example, when a new substrate 2 is carried in, the adhesive is discarded and applied to a space of the substrate 2 which is a so-called blank space.
The image is taken by the camera 9, the application amount (application area) and the application form of the adhesive are detected from the image data, and the detection value is fed back to adjust the adhesive ejection conditions (ejection pressure and ejection time) to be normal. The application work is done.

However, there is a circumstance that the color of the adhesive is generally red while the color of the substrate 2 is generally green. There is a drawback in that it is difficult to accurately perform visual recognition (edge detection) of the adhesive, which eventually causes an inconvenience such as erroneous application of the adhesive during a regular adhesive application operation.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an adhesive coating device that enables accurate visual recognition of an adhesive that is discarded and applied to a blank portion of a substrate. .

[0008]

A first adhesive applying device of the present invention performs a waste coating operation of an adhesive by a coating head on a blank portion of a substrate, and a coating situation of the waste coated adhesive. Is visually recognized by a visual recognition device, and the visually recognized coating status is fed back to control the coating head. By applying a stamp to a blank portion of the substrate, the adhesive With the provision of a stamping device for applying an ink of a color whose brightness is greatly different from that of the ink in a solid coating state, prior to performing the discarding application work of the adhesive, the ink of the ink for the blank part of the substrate by the stamping device is applied. The invention is characterized in that it is configured to execute a coating operation (the invention of claim 1). In this case, the stamp device may be configured to include an ink supply mechanism that automatically supplies ink to the stamp (the invention of claim 2).

In the second adhesive application device of the present invention, the adhesive coating operation is performed by the application head on the blank portion of the substrate, and the application state of the adhesive applied by the application is visually recognized by the visual recognition device. In the one which recognizes and feeds back the visually recognized coating state to control the coating head, ink of a color whose brightness is greatly different from the color of the adhesive is applied to the blank portion of the substrate. A spraying device for spraying and applying in a solid coating state is provided, and prior to performing the discarding application work of the adhesive, the spraying device is configured to execute the ink application work for the blank portion of the substrate. However, it has a feature (the invention of claim 3).

In the third adhesive application device of the present invention, the adhesive head is applied to the blank portion of the substrate by discarding the adhesive, and the application state of the dispensed adhesive is visually confirmed by the visual recognition device. In the one which recognizes and feeds back the visually recognized coating status to control the coating head, a seal having a color whose brightness is greatly different from the color of the adhesive is applied to the blank portion of the substrate. The present invention is characterized in that a sticker sticking device for sticking is provided, and the sticking work for sticking a seal on the blank portion of the substrate by the sticker sticking device is executed prior to the discarding application work of the adhesive. (Invention of Claim 4). In this case, it is more effective to provide a seal removing device for peeling and removing the seal attached to the substrate (the invention of claim 5).

In the fourth adhesive applying device of the present invention, the adhesive is applied to the blank portion of the substrate by the application head, and the application status of the adhesive applied by the application is visually recognized by the visual recognition device. Recognizing and controlling the coating head by feeding back the visually recognized coating status, the visual recognition device is configured to reflect the reflected light from the substrate or the reflected light from the applied adhesive. The invention is characterized in that the image of the discarded coating portion is taken in through a filter that absorbs any light (the invention of claim 6).

[0012]

The above first adhesive coating device (the invention of claim 1)
According to the paper, the adhesive is discarded and applied to the blank portion of the substrate coated with the ink by the stamp device. At this time, when visually recognized by the visual recognition device, the background part of the adhesive is applied. However, since it is made of ink having a color whose brightness is largely different from the color of the adhesive, a sufficient contrast of light and dark can be obtained between the adhesive and the background portion thereof. In this case, if the stamp device is configured to include an ink supply mechanism that automatically supplies ink to the stamp (the invention of claim 2), it will not take much time to supply the ink to the stamp, and the efficiency will be improved. Ink application work can be performed.

Further, according to the second adhesive applying device (the invention of claim 3), instead of the stamp device, the ink of a color whose brightness is largely different from the color of the adhesive is also provided in the blank portion of the substrate. Since a spray device for spraying and applying in a solid state is provided, when the visual recognition device visually recognizes, the contrast of the light and dark between the discarded adhesive and the background part is sufficient. You can take

Further, according to the third adhesive applying device (the invention of claim 4), the seal applying device applies a seal having a color whose brightness is greatly different from that of the adhesive to the margin of the substrate. Since the adhesive is discarded and applied on the seal, the contrast between the discarded adhesive and the background portion of the seal is sufficient when visually recognized by the visual recognition device. be able to. In this case, if a seal removing device for peeling and removing the sticker attached to the substrate is provided (the invention of claim 5),
The seal does not deteriorate the appearance, and the blank space can be used for other purposes.

Further, according to the fourth adhesive application device (the invention of claim 6), the visual recognition device emits either light reflected by the substrate or light reflected by the applied adhesive. Since the image of the adhesive that has been discarded and applied to the blank area of the substrate is captured through the absorbing filter, the captured image has a sufficient contrast of light and dark between the adhesive and the background portion. Can be taken.

[0016]

EXAMPLES Some examples of the present invention will be described below.
This will be described with reference to FIGS. 1 to 9. (1) First Embodiment First, a first embodiment of the present invention (corresponding to claims 1 and 2) will be described with reference to FIGS. 1 to 3. FIG. 3 is a partially cutaway view showing the external configuration of the main body 11 of the adhesive application device according to the present embodiment. Here, the substrate 13 as the application target is placed on the base 12 in the X-axis direction (left and right). Direction),
A substrate transfer mechanism 14 for unloading is provided.

The board transfer mechanism 14 includes a carry-in conveyor 15 and a conveyor motor 16 for carrying in the board 13 from the right to the illustrated work position, and a carry-out conveyor for carrying out the board 13 to the left from the work position. 17 and a conveyor motor 18 and the like. Further, although not shown, positioning pins for holding the substrate 13 in a positioned state, backup pins for supporting the lower surface of the substrate 13 to prevent warping, etc. are provided at the working position.

On the base 12, there are provided a dispensing unit 19 and an XY moving mechanism 20 for freely moving the dispensing unit 19 above the substrate 13 at the working position. Of these, the XY movement mechanism 2
0 indicates that the dispense unit 19 is set to Y, as is well known.
A Y-axis direction moving unit 22 that moves along a rail 21 that extends in the axial direction, and this Y-axis direction moving unit 2
It is composed of an X-axis direction moving unit 23 and the like for moving 2 in the X-axis direction.

As shown in FIG. 4, the dispensing unit 19 includes a plurality of coating heads 25, in this case, four coating heads 25, which are L-shaped on the frame 24 moved by the Y-axis direction moving unit 22. Prepared side by side,
A head drive mechanism 26 for selectively moving the coating heads 25 up and down to perform an adhesive coating operation is provided. Each of the application heads 25 is configured to include a replaceable syringe 27 containing an adhesive and a predetermined application nozzle 28 at the tip. Further, the upper end of the syringe 27 is connected to a pressure adjusting mechanism (not shown) via a tube 29, and a predetermined amount of adhesive is discharged from the application nozzle 28 by pressure adjustment.

Further, the dispensing unit 19 is provided with a CCD camera 30 which is a photographing means constituting a visual recognition device so as to be aligned with the coating head 25. Although not shown in detail, the visual recognition device uses the CC
The D camera 30, a ring illuminating device serving as a light source of the CCD camera 30, an image processing device for processing image data from the CCD camera 30, and the like. And
The dispensing unit 19 includes the CCD camera 30.
A stamp device 31 described later is provided so as to be lined up with.

Further, the main body 11 is provided with a control device (not shown) mainly composed of a microcomputer. This control device, based on the control program and the adhesive application point data regarding the substrate 13 input in advance,
The substrate transfer mechanism 14 is controlled to bring the substrate 13 into the working position, and the XY movement mechanism 20, the head drive mechanism 26, the pressure adjusting mechanism, etc. are controlled to apply the adhesive to a predetermined application point of the substrate 13. Then, the adhesive application work such as carrying out is repeatedly and automatically executed.
Further, the control device can freely adjust the discharge amount of the adhesive from the coating head 25 by controlling the pressure adjusting mechanism (controlling the discharge pressure or the discharge time).

Due to its software configuration, the control device has a space (margin area) on the substrate 13 before applying the regular adhesive to the substrate 13 newly brought into the working position. ) Is applied to the adhesive coating. At this time, as will be described later in the description of the operation, the control device is adapted to execute the ink application work by the stamp device 31 to the blank area before performing the discarding application work of the adhesive. There is. Thereafter, when the adhesive is dispensed, the visual recognition device detects the size (area) of the dispensed adhesive, and the control device feeds back the detection result. The discharge amount of the adhesive is adjusted when the regular adhesive application work is executed so that the adhesive is applied in a target size (area).

1 and 2 show the stamp device 3
1 and the stamp device 31 according to the present embodiment is configured as follows. That is, the moving base 32 is attached to the side wall of the frame 24 of the dispensing unit 19.
Is provided so as to be vertically movable via a linear guide 33. A head portion 34 is provided at the lower end of the moving base 32 so as to extend to the lower side.

At the lower end of the head portion 34,
A stamp 35 is attached. This stamp 35
Is formed in a rectangular block shape from, for example, a soft porous material, and the lower surface thereof is pressed against the substrate 13 to transfer the ink I impregnated inside to the substrate 13. The head portion 34 is provided with an ink passage 36 that extends in the vertical direction so as to communicate with the stamp 35. The ink passage 3
The upper end of 6 is connected to the ink supply mechanism 37.

The ink supply mechanism 37 includes a liquid tank 38 for storing the ink I, which is provided at an intermediate portion of the moving base 32, and a shutter portion 39 provided so as to communicate with the upper end portion of the ink passage 36. , Tube 40 for connection. As a result, the ink I stored in the liquid tank 38 is guided to the shutter portion 39 through the tube 40, and when the shutter 39 is opened, the ink I is supplied to the stamp 35 through the ink passage 36. It has become. The shutter 39 is opened by a cylinder (not shown) or the like for a predetermined number of times each time the stamp 35 is pressed, so that the ink I is automatically supplied to the stamp 35. In this case, as the ink I, a color whose brightness is significantly different from the color of the adhesive (for example, red color), for example, white is used.

On the other hand, the upper end of the moving base 32 is connected to a rod 41a of an air cylinder 41 provided on the frame 24. The air cylinder 41 and the shutter 39 are also controlled by the control device. As a result, when the air cylinder 41 is driven, the moving base 32 moves downward to press the stamp 35 against the substrate 13, as shown in FIG.
By pressing the stamp 35, the white ink I is applied to the substrate 13 in a solid state. still,
The size to which the ink I is applied is set to be a region sufficiently larger than the application area of the adhesive.

Next, the operation of the above configuration will be described. As described above, for example, when a new substrate 13 is carried into the work position, the work of applying the adhesive by discarding is performed as follows. That is, first, the dispensing unit 1
9 is driven to move the stamp device 31 (stamp 35) above the blank portion of the substrate 13 which is not related to component mounting. At this time, as shown in FIG. 1, the stamp 35 is still located above the substrate 13. Then, the air cylinder 41 is operated, the stamp 35 descends as shown in FIG. 2, and the white ink I is applied to the substrate 13 in a solid coating state.

Next, the coating head 25 is moved to a position above the blank portion of the substrate 13, that is, the portion where the white ink I is coated in a solid state, and the coating head 25 dispenses the adhesive. . To apply the adhesive, while lowering the application head 25, the inside of the syringe 27 is positively pressured for a short time to eject the adhesive from the application nozzle 28, and a ball of the adhesive is formed at the tip of the application nozzle 28. Is transferred to the upper surface of the substrate 13. As a result, the adhesive is applied to the central portion of the application portion of the white ink I on the substrate 13.

Subsequently, the CCD camera 30 is moved to above the part of the adhesive that has been scrap-applied, the ring illumination is turned on, and the planar shape of the applied adhesive is photographed by the CCD camera 30. Be seen. The image data from the CCD camera 30 is sent to the image processing device, and the edge of the coating adhesive that has been discarded is detected, and thus the size (area) is detected.

Here, the substrate 13 generally has a greenish color, whereas the adhesive has a reddish color. Therefore, when the adhesive is applied on the substrate 13 as it is, There is a problem in that it is difficult to provide a contrast of lightness and darkness between the ground portion of the substrate 13 and the applied adhesive, and the edges of the adhesive portion are blurred in the captured image. However, in the present embodiment, the stamp device 31 is preliminarily provided in the blank portion of the substrate 13.
The white ink I is applied in a solid state by the method, and the adhesive is applied over it. Therefore, at the time of visual recognition, a sufficient contrast of light and dark between the adhesive and the background portion thereof should be taken. Can be done.

When the size (area) of the applied adhesive is detected by the visual recognition device in this manner, the detected value is input to the control device, and the discharge condition of the adhesive ( The discharge pressure and the discharge time) are corrected, and the subsequent regular adhesive application work is executed. At this time, since the discharge condition of the adhesive from the coating nozzle 28 is corrected so as to approach the target, a high-quality adhesive coating operation with an appropriate coating amount is executed.

According to the present embodiment as described above, the dispenser unit 19 is provided with the stamp device 31, and the white ink I is applied to the blank portion of the substrate 13 prior to the application of the adhesive to the blank portion. Since the adhesive is applied, it is possible to obtain a sufficient contrast of light and dark between the adhesive and the background portion thereof, and it is possible to accurately visually recognize the adhesive that is discarded and applied to the blank portion of the substrate 13. You can do it.

Further, the stamp device 31 has a stamp 35.
Since the ink I is applied by a simple operation of pressing, the work of applying the ink I can be efficiently performed in a short time. In particular, in the present embodiment, since the ink supply mechanism 37 that automatically supplies the ink I to the stamp 35 is provided, it does not take much time to supply the ink I to the stamp 35.
The application work of the ink I can be efficiently performed.

FIG. 4 shows the ink supply mechanism 37 of the above embodiment.
9 shows an example of an ink supply mechanism 51 different from the above.
The ink supply mechanism 51 allows the liquid tank 52 that stores the ink I to directly communicate with the ink passage 36 of the head portion 34 via the tube 53, and the upper space of the liquid tank 52 via the tube 54. It is adapted to be connected to a pressure adjusting source (not shown).

In this structure, each time the stamp 35 is pressed a predetermined number of times, a predetermined compressed air is supplied to the upper space portion of the liquid tank 52, whereby the liquid tank 5
A predetermined amount of ink I is extruded from 2 and automatically supplied to the stamp 35. Also in this configuration, the ink supply mechanism 51 does not need to supply the ink I to the stamp 35, and the application work of the ink I can be efficiently performed, similarly to the above-described embodiment.

(2) Second Embodiment FIG. 5 shows a second embodiment (corresponding to claim 3) of the present invention. This embodiment differs from the first embodiment in that the stamp device 31 is replaced by a spray device for spraying the white ink I onto the blank portion of the substrate 13 to apply it in a solid state. A spray gun 61 is provided.

That is, the spray gun 61 is provided on the side wall portion of the frame 24 of the dispense unit 19 so that the nozzle portion 61a at the tip is located slightly above the upper surface of the substrate 13, and is operated by the control device. As a result, for example, the white ink I contained inside is sprayed onto the blank portion of the substrate 13 and applied in a solid coating state. The range over which this ink I is sprayed is
The area is sufficiently larger than the application area of the adhesive.

Also in the second embodiment, the white ink I is applied to the blank portion of the substrate 13 by the spray gun 61 prior to the application of the adhesive by the application head 25. The adhesive is applied to the blank portion by the application head 25, and the CCD camera 30 captures an image. Therefore, as in the first embodiment, a sufficient contrast of light and dark can be obtained between the adhesive and the background portion thereof, and the substrate 13
It is possible to obtain the effect of enabling an accurate visual recognition of the adhesive that is discarded and applied to the blank portion of.

(3) Third Embodiment Next, FIGS. 6 to 8 show a third embodiment of the present invention (claim 4).
And 5). In this embodiment, instead of the stamp device 31 of the first embodiment, the surface of the side wall of the frame 24 of the dispensing unit 19 is larger than the color of the adhesive with respect to the margin of the substrate 13. A sticker sticking device 72 for sticking a strip-shaped sticker 71 having a different color, for example, white, is provided. This sticker attaching device 72 is shown in FIGS.
It is configured as shown in.

That is, the moving base 73 is provided on the side wall of the frame 24 of the dispensing unit 19 so as to be vertically movable via the linear guide 74. A substantially T-shaped head portion 75 is provided at the lower end of the moving base 73, and a rubber pressing roller 76, for example, is rotatably provided at the lower end portion of the head portion 75.
A base tape take-up reel 77 is rotatably provided at the left end of the. Further, the moving base 73 has
Tape supply reel 78 and top tape take-up reel 79
Are rotatably provided together, and a first winding motor 80 for rotationally driving the base tape take-up reel 77 and a second winding motor for rotationally driving the top tape take-up reel 79. A take-up motor 81 is provided.

On the tape supply reel 78, a seal supply tape is set in a wound state. This seal supply tape is a long base tape 8
A large number of seals 71 are held on one surface of the seal 2 at a constant pitch in the longitudinal direction, and the outer surface of the seal 71 is covered with a top tape 83. At this time, the seal 71 is held on the base tape 82 with the adhesive surface (rear surface) facing outside, and the top tape 83 is not adhesive.
The size of the seal 71 is sufficiently large with respect to the application area of the adhesive, and the adhesive force is relatively weak.

Of the seal supply tape pulled out from the tape supply reel 78, the top tape 83 is peeled off from the base tape 82 side and taken up by the top tape take-up reel 79 above. Then, the base tape 82 from which the top tape 83 has been peeled off extends downward with the seal 71 holding the adhesive surface thereof outside, and is stretched around the pressing roller 76.
After sticking the seal 71 on the substrate 13 so as to be transferred to the substrate 13, it is folded back and wound around the base tape take-up reel 77. The moving base 73
Are vertically moved by an air cylinder 41 provided in the frame 24.

In the above structure, the base tape 82 and the top tape 83 drawn from the tape supply reel 78 are wound by the constant pitch by driving the first winding motor 80 and the second winding motor 81. Will be
Thus, the seal 71 is supplied to the lower surface of the pressing roller 76 one by one. Prior to the application of the adhesive by the application head 25, the moving base 73 is lowered, so that the pressing roller 76 presses and attaches the seal 71 to the blank portion of the substrate 13.

After that, the adhesive head is applied to the blank portion, that is, the upper surface of the sticker 71, and the CCD camera 30 takes an image. Therefore, similar to the first embodiment and the like, it is possible to obtain a sufficient contrast of light and dark between the adhesive and the background portion thereof, and it is possible to accurately adjust the adhesive applied to the blank portion of the substrate 13 by discarding. It enables visual recognition.

Further, in the present embodiment, the dispensing unit 19 has a structure shown in FIG.
A seal removing device 84 as shown in FIG. The seal removing device 84 has substantially the same configuration as that of the sticker attaching device 72, and a pressing roller 88 and a tape take-up reel 89 are attached to a head portion 87 at the lower end of a moving base 86 that can be moved up and down by a linear guide 85. In addition, the moving base 86 is provided with a tape supply reel 90 and a first winding motor 91, a top tape winding reel 92 and a second winding motor 93, and the like.

The tape supply reel 90 has
The long peeling adhesive tape 94 is set in a wound state with the top tape 95 attached to the outer surface side thereof. The top tape 95 is wound on the top tape take-up reel 92, and the peeling adhesive tape 94 from which the top tape 95 is peeled off is wound on the pressing roller 88 and then wound on the tape take-up reel 89. It is like this. At this time, the outer surface portion of the peeling adhesive tape 94 has a relatively high adhesiveness.

In the seal removing device 84, by driving the first winding motor 91 and the second winding motor 93, a new portion of the peeling adhesive tape 94 is fixed on the lower surface of the pressing roller 88. It is supplied at the pitch of. Then, in a state in which the seal 71 attached to the blank portion of the substrate 13 is no longer needed, the pressing roller 88 (adhesive surface of the peeling adhesive tape 94) is pressed against the upper surface of the seal 71, and then rises. The used seal 71 is peeled off from the substrate 13 to be removed.

According to the third embodiment as described above, by providing the seal sticking device 72, it is possible to obtain a sufficient contrast of light and dark between the adhesive and the background portion thereof, and the substrate 13 This enables accurate visual recognition of the adhesive that is discarded and applied to the blank area. Further, particularly in this embodiment, since the seal removing device 84 for peeling and removing the seal 71 attached to the substrate 13 is provided, the seal 71 does not deteriorate the appearance of the substrate 13 and the like. It is possible to use the other margin portion later.

(4) Fourth Embodiment Finally, FIG. 9 shows a fourth embodiment of the present invention (corresponding to claim 6). In the fourth embodiment, the ink I is applied to the blank portion of the substrate 13 as in the first to third embodiments.
The device for applying the adhesive or attaching the sticker 71 is not provided, but the visual recognition device 101 is provided with the following device so that the contrast of light and dark between the adhesive and the background portion thereof is sufficiently increased. It is the one that was adopted.

That is, the visual recognition device 101 according to this embodiment.
Is composed of a CCD camera 102, a lens unit 103, a ring illumination 104, an image processing device (not shown), etc., but here, the lens unit 10 is used.
The color filter 105 is provided in three parts. The color filter 105 absorbs either the reflected light from the substrate 13 or the reflected light from the applied adhesive B, and uses, for example, dark blue or red.

According to this structure, even when the red adhesive B is applied as it is to the blank portion of the substrate 13 having a green color, the CCD camera 102 passes through the color filter 105. Since the image is captured, the captured image can have a sufficient contrast of light and dark between the adhesive B and the background portion (substrate 13).

Therefore, similarly to the above-mentioned first to third embodiments, a sufficient contrast of light and dark between the adhesive B and the background portion thereof can be obtained, and the adhesive B is discarded in the blank portion of the substrate 13. This enables accurate visual recognition of the applied adhesive B. In addition, in the present embodiment, it is not necessary to add a large-scale device, and it is possible to obtain an advantage that the conventional image processing device can be completed with a very simple configuration of adding the color filter 105. .

Although the ink I and the seal 71 are white in the first to third embodiments, the invention is not limited to white, and any ink can be used as long as a sufficient contrast of light and dark with the adhesive can be obtained. Various colors can be used. Also, various colors can be similarly used for the color of the color filter 105 in the fourth embodiment. Furthermore, in the third embodiment, the seal removing device 8
4 is provided, but if there is no problem even if the seal 71 is attached, this device may be omitted,
Further, the work of peeling and removing the seal 71 can be performed manually by a worker in a later process.

In each of the above embodiments, the new substrate 1
3 was carried in, the discarding application work was executed. The timing of executing the discarding application work is, for example, when the coating nozzle 28 or the syringe 27 is replaced,
It is also conceivable that a predetermined time has passed since the last time the coating nozzle 28 was used. In addition, the present invention is not limited to the size (area) of the adhesive, and may be shape recognition or visual recognition of the presence or absence of whiskers. The present invention can be appropriately modified and implemented without departing from the scope of the invention. Is.

[0055]

As is apparent from the above description, the present invention has the following excellent effects. That is, according to the adhesive application device of the first aspect, a stamp device that applies an ink having a color greatly different from the color of the adhesive in a solid coating state by pressing the stamp against the blank portion of the substrate is provided. In addition to the provision of the adhesive, the ink is applied to the blank area of the substrate by the stamp device prior to performing the adhesive disposing application work. A sufficient contrast of light and dark between the agent and the background portion thereof can be obtained, and accurate visual recognition of the adhesive applied in the blank portion of the substrate can be performed accurately. In this case, if the stamp device is provided with an ink supply mechanism for automatically supplying ink to the stamp (adhesive applying device according to claim 2), it will not be necessary to supply ink to the stamp. Thus, the ink application work can be performed efficiently.

According to the third aspect of the present invention, there is provided a spraying device for spraying an ink of a color having a lightness greatly different from that of the adhesive onto the blank portion of the substrate to apply the ink in a solid coating state. Since the ink is applied to the blank area of the substrate by the spray device prior to performing the dispensing application work of the adhesive, when the visual recognition device visually recognizes the adhesive, A sufficient contrast of light and dark with the background portion can be ensured, and accurate visual recognition of the adhesive applied in the blank portion of the substrate can be performed accurately.

According to the adhesive application device of the fourth aspect, a seal applying device for applying a seal having a color whose brightness is largely different from the color of the adhesive is provided on the blank portion of the substrate, and the adhesive is discarded. Prior to performing the coating work, the sticker sticking device is configured to carry out the sticking work of the sticker on the blank portion of the substrate, so that when the visual recognition device visually recognizes, the adhesive and the background part A sufficient contrast between light and darkness can be obtained, and accurate visual recognition of the adhesive that is discarded and applied to the blank portion of the substrate can be made possible. In this case, if a seal removing device for peeling and removing the sticker attached to the substrate is provided (adhesive applying device of claim 5), the sticker does not deteriorate the appearance of the substrate, and , Another use of the blank area is possible.

According to the adhesive application device of the sixth aspect, the visual recognition device is passed through the filter that absorbs either the reflected light from the substrate or the reflected light from the applied adhesive, and the discarded coating part is applied. Since it is configured to capture the image of the adhesive, the contrast of the light and dark between the adhesive and the background part can be sufficiently taken, and the accurate visual recognition of the adhesive applied in the blank area of the substrate is applied. Is possible.

[Brief description of drawings]

FIG. 1 is a front view schematically showing a stamp device according to a first embodiment of the present invention.

FIG. 2 is a schematic front view of a stamp device showing a state where a moving base is lowered.

FIG. 3 is a perspective view showing the overall configuration of an adhesive application device.

FIG. 4 is a schematic front view of a main part showing a modified example of an ink supply mechanism.

FIG. 5 is a front view schematically showing a spray device according to the second embodiment of the present invention.

FIG. 6 shows a third embodiment of the present invention and is a front view schematically showing a sticker sticking device.

FIG. 7 is a schematic front view of the sticker sticking device showing a state where the moving base is lowered.

FIG. 8 is a schematic front view of a seal removing device.

FIG. 9 shows a fourth embodiment of the present invention, and is a schematic front view of the main part of the visual recognition device.

FIG. 10 is a view corresponding to FIG. 3 showing a conventional example.

[Explanation of symbols]

In the drawings, 11 is a main body of the adhesive coating device, 12 is a base, and 1 is a base.
3 is a substrate, 14 is a substrate transport mechanism, 19 is a dispensing unit, 20 is an XY movement mechanism, 24 is a frame, 25 is a coating head, 27 is a syringe, 28 is a coating nozzle, 3
0 and 102 are CCD cameras, 31 is a stamping device, and 34
Is a head portion, 35 is a stamp, 37 and 51 are ink supply mechanisms, 38 and 52 are liquid tanks, 61 is a spray device, 7
1 is a seal, 72 is a sticking device, 84 is a sticker removing device, 101 is a visual recognition device, 105 is a color filter, I is ink, and B is an adhesive.

Claims (6)

[Claims] 1. An adhesive application device in which an adhesive is applied to a predetermined application point of a substrate by an application head, and a marginal application of the adhesive by the application head is applied to a blank portion of the substrate. In such a way that the application status of the adhesive that has been discarded is visually recognized by a visual recognition device and the visually recognized application status is fed back to control the application head. By impressing a stamp,
A stamp device is provided for applying in a solid state an ink of a color whose brightness is largely different from the color of the adhesive, and prior to performing the adhesive disposing application work, a blank portion of the substrate by the stamp device is provided. An adhesive application device, characterized in that it is configured to perform an ink application operation on the ink. 2. The adhesive applying device according to claim 1, wherein the stamp device includes an ink supply mechanism that automatically supplies ink to the stamp. 3. An adhesive coating device in which an adhesive is applied to a predetermined application point on a substrate by an application head, and the adhesive head is applied to a blank portion of the substrate by discarding the adhesive. In such a way that the application status of the adhesive that has been discarded is visually recognized by a visual recognition device and the visually recognized application status is fed back to control the application head. On the other hand, while providing a spray device for spraying an ink of a color whose brightness is largely different from the color of the adhesive to apply it in a solid coating state, prior to performing the waste coating operation of the adhesive, the spray device is used. An adhesive application device configured to perform an ink application operation on a blank portion of the substrate. 4. An adhesive application device in which an adhesive is applied to a predetermined application point on a substrate by an application head, and the adhesive head is applied to a marginal portion of the substrate by discarding the adhesive. In such a way that the application status of the adhesive that has been discarded is visually recognized by a visual recognition device and the visually recognized application status is fed back to control the application head. On the other hand, while providing a sticker sticking device for sticking a sticker of a color whose brightness is largely different from the color of the adhesive, prior to performing the waste coating operation of the adhesive, the blank part of the substrate by the sticker sticking device An adhesive application device, characterized in that it is configured to perform a sticking operation of a sticker. 5. The adhesive coating device according to claim 4, further comprising a seal removing device that peels and removes the seal attached to the substrate. 6. An adhesive application device in which an adhesive is applied to a predetermined application point on a substrate by an application head, and the adhesive head is applied to a blank portion of the substrate by discarding the adhesive. Doing, visually recognizing the application status of the adhesive that has been discarded and applied by a visual recognition device, and feeding back the visually recognized application status to control the application head, wherein the visual recognition device: An adhesive application device characterized in that it is configured to capture an image of the scrap coating part through a filter that absorbs either the reflected light from the substrate or the reflected light from the applied adhesive. .