JP5258102B2 - Tape feeder component supply tape mounting state confirmation device - Google Patents

Description

  The present invention relates to a component supply tape mounting state confirmation device for a tape feeder that recognizes a mounting state of a component supply tape mounted on a tape feeder or a peeled state of a top tape peeled off from the upper surface thereof.

  Generally, a component supply tape is configured by adhering a top tape to an upper surface of a carrier tape in which components are stored at a predetermined pitch so that the top tape can be peeled off, and is wound around a tape reel and set on a tape feeder. Yes. The tape feeder pulls out the component supply tape from the tape reel, and peels off the top tape from the component supply tape at the opening edge of the tape pressing member provided on the front side of the component suction position to expose the components in the carrier tape. In addition to pitch feeding to the component suction position, the top tape peeled off from the component supply tape is pulled out in a direction opposite to the pitch feeding direction of the component supply tape by a top tape drawing device (see Patent Document 1).

  In addition to the opening for tearing off the top tape, a slit is formed in the tape pressing member provided on the front side of the component suction position, so that the top of the component supply tape can be topped by either the opening or the slit. Some tapes can be pulled out. For example, when setting a parts supply tape containing small parts such as a mini-mold on the tape feeder, it is easier to peel off the top tape using the slits. However, the use of slits may be specified (recommended) depending on the component supply tape and the type of component.

  However, since the operator manually pulls the top tape that has been peeled off from the component supply tape, the slit is not used due to the operator's carelessness even if the component supply tape is specified to use the slit. There is.

  On the other hand, for example, when two parts supply tapes are spliced together with splicing tape, the use of slits can cause the splicing tape to stick to the slits, making it difficult to peel off the top tape. Therefore, it is desirable not to use a slit, but even when using a component supply tape spliced with a splicing tape, the slit may be used due to carelessness of the operator.

  For this reason, when setting the tape feeder to the component mounting machine, it is necessary for the operator to confirm the use / non-use of the slit, but this confirmation may be neglected, and as a result, the operator may use the slit. / Start production without noticing the mistake of non-use, increase the incidence of component suction failure and suction mistake, reduce productivity, or make it difficult to peel off the top tape and stop the error There were cases where problems such as these occurred.

  In addition, since the top tape is peeled off from the component supply tape immediately before the component suction position, the boundary between the top tape peeled off from the component supply tape and the exposed portion of the carrier tape (hereinafter referred to as “top tape winding position”). ) Is shifted in the pitch feed direction of the component supply tape, the “top tape turning failure” occurs, and the component supply tape is sent to the component suction position with the top tape still attached to the upper surface of the component supply tape. As a result, malfunctions such as frequent component pick-up mistakes and reduced productivity or error stoppages may occur.

  In addition, the above-mentioned mistakes in the use / non-use of the slits and poor top tape turning are work mistakes that occur due to carelessness of the operator. It is desirable to distinguish from the component suction failure / suction mistake that occurs due to the cause of the side, but in the current system configuration, the cause of the component suction failure / suction mistake cannot be distinguished. A component suction failure / suction mistake caused by a tape twist failure is also handled as a component suction failure / suction mistake caused by the device side, which sometimes takes time to recover.

  In general, since the top tape is formed of a transparent or translucent plastic film so that the components in the carrier tape can be seen through, the top tape itself is difficult to see by the operator's eyes. Even if there is a mistake in use / non-use or a flaw in the top tape, it may be easily overlooked by the operator.

JP 2007-48838 A

  As described above, since the operator confirms the mounted state of the component supply tape mounted on the tape feeder or the peeled state of the top tape peeled off from the top surface thereof, the worker visually checks the state. There were times when we failed to confirm or made a mistake.

  Therefore, the problem to be solved by the present invention is to confirm the mounting state of the component supply tape mounted on the tape feeder or the peeling state of the top tape peeled off from the upper surface thereof more accurately and easily than the visual observation of the operator. An object of the present invention is to provide a component feeder tape mounting state confirmation device for a tape feeder.

In order to solve the above-described problems, the invention according to claim 1 is configured such that a component supply tape formed by releasably bonding a top tape to a top surface of a carrier tape in which components are stored at a predetermined pitch is attached to a tape feeder, In a tape feeder that peels off the top tape from the component supply tape at a predetermined position in the tape passage of the tape feeder to expose the components in the carrier tape and supplies the components to the component mounting machine, the component supply mounted on the tape feeder boundary (hereinafter referred to as "top tape turning position") and a camera for imaging the area including the peeling state of the bets Pputepu by image processing a captured image of the camera between the top tape and the carrier tape exposed portion of the peeled off from the tape the is obtained by a structure in which an image processing means you recognized.

In this configuration, the camera captures an area including the boundary (top tape turning position) between the top tape peeled off from the component supply tape mounted on the tape feeder and the exposed portion of the carrier tape, and the captured image of the camera is subjected to image processing. it can be confirmed accurately and easily than visual worker peeling state recognition to order, top tape turning position and the state of the peripheral portion of the preparative Pputepu with.

  Specifically, as in claim 2, in the tape passage of the tape feeder, a tape presser that presses the lift of the component supply tape to the front side of the component suction position where the component in the component supply tape is sucked by the suction nozzle. A member is provided, and the tape pressing member is formed with an opening and a slit for peeling off the top tape, and the top tape can be pulled off from the component supply tape by either the opening or the slit. When the present invention is applied to a tape feeder, the image processing means recognizes the top tape turning position based on the image captured by the camera, and the top tape is pulled out by either the opening or the slit. You may make it recognize whether there exists. In this way, based on the image processing result at the top tape turning position, it can be confirmed more accurately and easily than the operator's visual observation as to whether the top tape drawing position is the opening or the slit. .

  In this case, as described in claim 3, it has been found that the drawing position of the top tape is different from the designated position based on the image processing result of the image processing means (that is, use / nonuse of the slit is different from the designation). Sometimes it is desirable to output warning information (warning display and / or warning sound). In this way, when the use / non-use of the slit is different from the designation, the worker can be surely notified of this by the warning information, and promptly change the top tape drawing position. Can do.

  According to a fourth aspect of the present invention, the image processing means recognizes the top tape turning position based on the image captured by the camera, and the top tape turning position deviates in the feeding direction of the component supply tape. The presence or absence of “taping failure” may be recognized. In this way, when a top tape turning failure occurs, the top tape turning failure can be detected more accurately and easily than the visual observation of the operator.

  In this case, as in claim 5, the tape feeder has a feeding direction of the component supply tape so that the top tape is peeled off from the component supply tape in accordance with the feeding operation of the component supply tape. A top tape pull-out device is provided that pulls in the opposite direction, and when the top tape pull-out failure is detected based on the image processing result of the image processing means, the top tape pull-out device is operated to remove the top tape from the component supply tape. The top tape may be wound and peeled off by an amount corresponding to the defective portion to eliminate the defective portion. In this way, when a top tape bending failure occurs, the top tape pulling device can be automatically operated to automatically eliminate the top tape bending failure.

  Note that the invention according to claim 4 is not limited to a configuration in which the top tape drawing device is automatically operated when a top tape bending failure is detected. When detected, warning information (warning display and / or warning sound) may be output. In this way, when a top tape bending failure is detected, it is surely notified to the operator by warning information so that the top tape bending failure can be quickly resolved by manual operation of the top tape drawing device. Can be encouraged.

  As described above, since the top tape is formed of a transparent or translucent plastic film so that the parts in the carrier tape can be seen through, there is a possibility that it is difficult to distinguish the outline of the top tape from the captured image of the camera. is there.

  Therefore, paying attention to the fact that two opaque adhesive peeling traces can be linearly formed on the back surface of the top tape peeled off from the component supply tape, based on the captured image of the camera as in claim 7, It is preferable to image-recognize the top tape turning position by image-recognizing the adhesive peeling trace on the back surface of the top tape. In this way, even if the top tape is transparent or translucent, the position of the start of two opaque adhesive peeling marks on the back surface of the top tape can be accurately and easily recognized as the top tape turning position. Can do.

  When carrying out the invention according to claims 1 to 7 as described above, a camera for recognizing a board mark provided in a component mounting machine as a camera for imaging an area including a top tape turning position as in claim 8 (So-called mark camera) may be used. In this way, it is not necessary to newly provide a camera for picking up the position of the top tape, and the present invention can be implemented at low cost.

  In addition, the present invention is not limited to a configuration using a camera, and the height of the carrier tape is set to a fixed position (for example, within a range from a normal turning position of the top tape to a component suction position, as in claim 9. Measured with a height measurement sensor, and based on the measurement result, it may be determined whether or not the top tape is defective. In this case, the higher the top tape turning position is in the feed direction of the component supply tape, the higher the height of the carrier tape measured at a certain position (to recognize the height of the top tape as the height of the carrier tape). Based on the measurement result of the height measuring sensor, it is possible to detect the top tape bending failure more accurately and easily than the visual observation of the operator.

FIG. 1 is a side view of a tape feeder used in Examples 1 to 3 of the present invention. FIG. 2A is an enlarged plan view showing a pulled state of the top tape when the slit is used, and FIG. 2B is an enlarged plan view showing a drawn state of the top tape when the slit is not used. FIG. 3 is a block diagram schematically showing the system configuration of the first embodiment of the present invention. FIG. 4 is a flowchart showing the flow of processing of the slit use / non-use confirmation program according to the first embodiment of the present invention. FIG. 5A is an enlarged plan view showing a normal winding state of the top tape, and FIG. 5B is an enlarged plan view showing a state when the top tape is bent. FIG. 6 is a flowchart showing the flow of processing of the top tape curl defect determination program according to the second embodiment of the present invention. FIGS. 7A and 7B are diagrams for explaining a configuration example of the third embodiment of the present invention, in which FIG. 7A is a diagram showing a normal winding state of the top tape, and FIG. 7B is a diagram showing a state when the top tape is bent. It is.

  Hereinafter, three embodiments 1 to 3 embodying the mode for carrying out the present invention will be described.

A first embodiment of the present invention will be described with reference to FIGS.
First, the structure of the tape feeder 10 is demonstrated based on FIG.1 and FIG.2.
A tape reel 13 around which a component supply tape 12 is wound can be detachably set on the handle 11a side of the feeder main body 11 of the tape feeder. A tape guide member 15 that forms a tape path for guiding the component supply tape 12 drawn from the tape reel 13 to the component suction position is attached to the upper surface of the feeder body 11.

  A sprocket 16 (pitch feed mechanism) that pitch-feeds the component supply tape 12 set on the tape guide member 15 to the component suction position is provided on the back side of the feeder main body 11 (on the side opposite to the handle portion 11a). A rotationally driven motor (not shown) is attached, and a position directly above the rotation center of the sprocket 16 is a component suction position.

  As shown in FIG. 2, sprocket holes 17 are formed at a constant pitch on one side edge of the component supply tape 12, and the sprocket 16 rotates while the teeth of the sprockets 16 are sequentially fitted in the sprocket holes 17. By doing so, the component supply tape 12 is pitch-fed.

  As shown in FIG. 1, on the back end surface of the feeder body 11, there are positioning pins 19 and 20 for determining the mounting position with respect to the component mounting machine, and a communication connector 18 connected to a connector (not shown) on the component mounting machine side. The controller 31 (see FIG. 3) of the tape feeder 10 can be connected to the controller 32 of the component mounter. The feeder main body 11 has top tape pulling rollers 23 a and 23 b of a top tape pulling device 22 for pulling the top tape 21 peeled off from the component supply tape 12 drawn from the tape reel 13 from the set position of the tape reel 13. Is also provided at a position close to the component suction position.

  A tape pressing member 25 (see FIG. 2) is attached to the tape guide member 15 (tape path) to hold the component supply tape 12 that is pitch-fed to the component suction position. An opening 26 is formed in the tape pressing member 25 so as to open an area corresponding to several pitches before and after the component suction position. The opening 26 functions not only as an opening for component suction but also as an opening for peeling off the top tape, and opens the top tape 21 peeled off from the component supply tape 12 immediately before the component suction position. 26, the top tape 21 is pulled out in the direction opposite to the pitch feed direction of the component supply tape 12, and the component 28 in the carrier tape 27 exposed in the opening 26 when the top tape 21 is peeled off is removed. In addition, suction is performed by the suction nozzle 39 at the component suction position.

  Further, a slit 29 is formed in the tape holding member 25 at a position one to several pitches away from the edge of the opening 26 toward the front side (opposite to the pitch feed direction), and the top is peeled off from the component supply tape 12. The tape 21 can also be pulled out from the slit 29. Therefore, the position at which the top tape 21 that has been peeled off from the component supply tape 12 is pulled out can be selected from either the opening 26 or the slit 29. When the selection is designated, the top tape is taken from the designated position. 21 may be pulled out, and if not specified, the position at which the top tape 21 is pulled out may be selected according to the presence or absence of tape splicing, the type of the component supply tape 12, and the like.

In the feeder main body 11, a guide roller 30 for guiding the top tape 21 drawn out from the opening 26 or the slit 29 to the top tape drawing rollers 23 a and 23 b is more than the component supply tape 12 sent to the tape guide member 15. It is provided so that it may be located above. The guide roller 30 is formed in a taper shape, and the top tape 21 is shifted to the side of the component supply tape 12 and guided to the top tape drawing rollers 23a and 23b.
A plurality of tape feeders 10 configured as described above are set side by side on a set base of a component mounting machine.

  As described above, the position at which the top tape 21 that has been peeled off from the component supply tape 12 is pulled out can be selected by either the opening 26 or the slit 29. For example, the component supply tape that stores a small component such as a mini-mold. 12 is set in the tape feeder 10, when the top tape 21 is peeled off using the slit 29, vibration of the exposed portion of the carrier tape 27 when the top tape is peeled off is suppressed by the tape pressing member 25. Since the incidence of component adsorption failure is reduced, the use of the slit 29 may be specified (recommended) depending on the component supply tape 12 and the type of component.

  However, since the operator manually pulls the top tape 21 peeled off from the component supply tape 12 from the slit 29, the operator is careless even with the component supply tape 12 for which use of the slit 29 is specified. Therefore, the slit 29 may not be used.

  On the other hand, for example, when the two component supply tapes 12 are used by splicing the splicing tape, if the slit 29 is used, the attaching portion of the splicing tape is caught by the slit 29 and it is difficult to peel off the top tape 21. However, it is desirable not to use the slit 29. However, even when the component supply tape 12 spliced with the splicing tape is used, the slit 29 may be used due to carelessness of the operator.

  For this reason, when setting the tape feeder 10 to a component mounting machine, it is necessary to confirm use / non-use of the slit 29. If this check operation is neglected, the worker starts production without noticing the mistake of using / not using the slit 29, and the occurrence rate of component suction failure and suction mistake increases, resulting in decreased productivity. In some cases, it may be difficult to peel off the top tape 21, causing an error stop or the like.

  Therefore, in the first embodiment, the control unit 32 of the component mounting machine executes a slit use / non-use confirmation program of FIG. 4 to be described later, so that the top peeled off from the component supply tape 12 mounted on the tape feeder 10 is obtained. An area including the boundary between the tape 21 and the exposed portion of the carrier tape 27 (hereinafter referred to as “top tape turning position”) is imaged by the camera 33, and the top tape turning position is recognized based on the image taken by the camera 33. It is determined whether the top tape 21 is pulled out by the opening 26 of the tape pressing member 25 or the slit 29, and the use / non-use of the slit 29 is determined.

  At this time, a board mark recognition camera (so-called mark camera) equipped in the component mounter is used as the camera 33 for imaging the area including the top tape turning position. In this way, it is not necessary to newly provide a camera for picking up the position where the top tape is turned, and the demand for cost reduction can be satisfied.

  In general, since the top tape 21 is formed of a transparent or translucent plastic film so that the component 28 in the carrier tape 27 can be seen through, it is difficult to distinguish the outline of the top tape 21 from the captured image of the camera 33. There is sex.

  Therefore, in the first embodiment, paying attention to the fact that two opaque adhesive peeling marks 34 can be linearly formed on the back surface of the top tape 21 peeled off from the component supply tape 12 (see FIG. 2). Based on the picked-up image 33, the adhesive peeling mark 34 on the back surface of the top tape 21 is image-recognized to recognize the top tape turning position. In this way, even if the top tape 21 is transparent or translucent, the position of the beginning of the two opaque adhesive peeling marks 34 on the back surface of the top tape 21 is accurately and easily set as the top tape winding position. Can be recognized.

  Further, in the first embodiment, when it is determined that the drawing position of the top tape 21 is different from the designated position based on the image processing result (that is, the use / nonuse of the slit 29 is different from the designation), the display 35 is displayed. A warning is displayed on the (display device) and / or the voice output device 36 such as a speaker is operated to output a warning voice or a warning sound, so that the operator is surely notified.

  The use / non-use confirmation process of the slit 29 according to the first embodiment described above is executed as follows according to the slit use / non-use confirmation program of FIG. 4 by the control unit 32 of the component mounter. The slit use / non-use confirmation program of FIG. 4 is executed when the control unit 32 of the component mounting machine detects that the tape feeder 10 is set in the mounting machine, and serves as an image processing means in the claims. Play a role. This program is executed for each tape feeder 10 set in the component mounter.

  When this program is started, first, at step 100, it is determined whether the use / non-use of the slit 29 has been confirmed before starting the component suction operation. For example, when this program is first executed immediately after the control unit 32 is turned on, it is determined that the use / non-use of the slits 29 has not been confirmed for all the tape feeders 10 set in the component mounter. In addition, when the tape feeder 10 is replaced or newly inserted while the component mounter is in operation (during the power-on period of the control unit 32), the use / non-use of the slit 29 is not confirmed only for the tape feeder 10. It is determined.

  If it is determined in step 100 that the use / non-use of the slit 29 has been confirmed, the present program is terminated without performing the subsequent processing.

  On the other hand, if it is determined in step 100 that the use / non-use of the slit 29 has not been confirmed, the use / non-use confirmation process of the slit 29 after step 101 is executed as follows. First, in step 101, the camera 33 of the component mounting machine is moved to a position where the area including the opening 26 and the slit 29 of the tape pressing member 25 can be imaged, and the focus of the camera 33 is adjusted to the upper surface of the tape pressing member 25. To match. In this state, an area including the boundary (top tape turning position) between the top tape 21 peeled off from the component supply tape 12 and the exposed portion of the carrier tape 27 is imaged by the camera 33. Based on the captured image, the image of the adhesive peeling mark 34 on the back surface of the top tape 21 is recognized. For this image recognition, any image processing may be used. For example, image processing based on pattern matching may be used, or image processing based on luminance determination may be used.

  Thereafter, the process proceeds to step 103, and based on the image recognition result of the adhesive peeling trace 34, the position of the start edge of the two opaque adhesive peeling traces 34 on the back surface of the top tape 21 is determined as the top tape winding position. This top tape turning position is set as the drawing position of the top tape 21.

  Thereafter, the process proceeds to step 104, where it is determined whether or not the slit 29 is used as the drawing position of the top tape 21 based on the determination result in step 103, and it is determined that the slit 29 is used. In step 105, it is determined whether or not the use of the slit 29 is designated (recommended). As a result, if it is determined that the use of the slit 29 is specified, the process proceeds to step 106, where the drawing position of the top tape 21 is determined as specified, and this program ends.

  On the other hand, if it is determined in step 105 that the use of the slit 29 is not specified, the process proceeds to step 107, and the drawing position of the top tape 21 is different from the specification (use of the slit 29 is not specified). And the process proceeds to step 108 where a warning is displayed on the display 35 and / or a sound output device 36 such as a speaker is operated to output a warning sound or a warning sound. .

  If it is determined in step 104 that the slit 29 is not used (the opening 26 is used) as the drawing position of the top tape 21, the process proceeds to step 109, and the use of the slit 29 is designated ( Determine whether it is recommended). As a result, if it is determined that the use of the slit 29 is designated, the process proceeds to step 110, and the drawing position of the top tape 21 is different from the designation (the slit 29 is used even though the use of the slit 29 is designated). In step 111, a warning is displayed on the display 35 and / or a voice output device 36 such as a speaker is operated to output a warning voice or a warning sound.

  On the other hand, if it is determined in step 109 that the use of the slit 29 is not specified, the process proceeds to step 112, where the drawing position of the top tape 21 is determined as specified, and this program ends.

  According to the first embodiment described above, the top tape turning position is recognized based on the image captured by the camera 33, and the drawing position of the top tape 21 is either the opening 26 or the slit 29 of the tape pressing member 25. Therefore, based on the image processing result at the top tape turning position, whether the drawing position of the top tape 21 is the opening 26 or the slit 29 of the tape pressing member 25 is determined by the operator's visual observation. Can be confirmed accurately and easily.

  Moreover, in the first embodiment, it was found that the top tape turning position is different from the designated position of the top tape 21 based on the image recognition result (that is, the use / non-use of the slit 29 is different from the designation). Since the warning information is sometimes output, when the use / non-use of the slit 29 is different from the designation, the warning information can be surely notified to the operator, and the position where the top tape 21 is pulled out can be promptly determined. Can be prompted to change. As a result, it is possible to prevent the worker from starting production without noticing the mistake of using / not using the slit 29, and to reduce the occurrence rate of component suction failure and suction error, thereby improving productivity. it can.

  In the first embodiment, the use / non-use of the slit 29 is confirmed for all the tape feeders 10 set in the component mounting machine. For example, the use / non-use of the slit 29 is confirmed. The operator can arbitrarily select the tape feeder 10 (device number), or the use / non-use of the slit 29 is confirmed only for the tape feeder 10 (device number) for which the use of the slit 29 is designated. You may do it.

In the slit use / non-use confirmation program shown in FIG. 4, the use / non-use of the slit 29 is automatically confirmed. As a reference example related to the present invention, an image captured by the camera 33 in step 101 is used. Is displayed on the display 35, and the operator can visually check whether the slit 29 is used or not by looking at the display image on the display 35 . Even in this case, since the image around the drawing position (top tape turning position) of the top tape 21 can be enlarged and displayed on the display 35, the use / non-use of the slit 29 can be confirmed more accurately and easily than before.

Next, Embodiment 2 of the present invention will be described with reference to FIGS.
In the second embodiment, as shown in FIG. 5, the tape holding member 25 is not formed with the slit 29 described in the first embodiment, but the tape having the slit 29 similar to the first embodiment is formed. The pressing member 25 may be used. Other hardware configurations are the same as those in the first embodiment.

  In the second embodiment, the control unit 32 of the component mounting machine executes the top tape curl defect determination program of FIG. 6 so that the area including the opening 26 of the tape pressing member 25 is imaged by the camera 33. Based on the image captured by the camera 33, the top tape turning position (adhesive peeling mark 34) is recognized, and the top tape turning position is shifted in the pitch feed direction of the component supply tape 12 as shown in FIG. When it is determined whether or not the top tape 21 has been twisted, and when it has been determined that the top tape 21 has not been twisted, the top tape pulling device 22 is operated to remove the top tape 21 from the component supply tape 12 by the amount of the defect. I try to eliminate the spoilage defect. The processing contents of the top tape curl defect determination program of FIG. 6 will be described below.

  6 is executed when the control unit 32 of the component mounter detects that the tape feeder 10 is set in the mounter, and serves as an image processing means in the claims. Fulfill. This program is executed for each tape feeder 10 set in the component mounter.

  When this program is started, first, at step 201, it is determined whether or not the condition for executing the top tape turning defect determination is satisfied. Here, the condition for executing the top tape twist failure determination is, for example, that one of the following conditions is satisfied.

(1) When the number of consecutive occurrences of component picking mistakes (and / or picking faults) exceeds the specified number (for example, the number of recovery settings)
(2) Immediately after the control unit 32 is turned on
(3) Immediately before production starts
(4) When the tape feeder 10 is replaced or newly inserted

  If none of these four conditions (1) to (4) is satisfied, the condition for executing the top tape turning defect determination is not satisfied, and the program is terminated without performing the subsequent processing.

  On the other hand, if any of the above four conditions (1) to (4) is satisfied, the top tape turning defect determination execution condition is satisfied, and the top tape turning defect determination process after step 202 is executed as follows. To do. First, in step 202, the camera 33 of the component mounting machine is moved to a position where the area including the opening 26 of the tape pressing member 25 can be imaged, and the camera 33 is focused on the upper surface of the tape pressing member 25. In this state, the camera 33 captures an image of an area (area including the opening 26) including the boundary (top tape winding position) between the top tape 21 peeled off from the component supply tape 12 and the exposed portion of the carrier tape 27. In step 203, the adhesive peeling scar 34 on the back surface of the top tape 21 is image-recognized based on the image captured by the camera 33 in the same manner as in the first embodiment.

  Thereafter, the process proceeds to step 204 where the top tape turning position is shifted in the pitch feed direction of the component supply tape 12 depending on whether or not the adhesive peeling mark 34 exists within a predetermined range from the component suction position. The presence or absence of “bad” is determined. Here, the region within a predetermined range from the component suction position is located at a position away from the edge of the opening 26 (a normal turning position of the component supply tape 12) by an amount corresponding to the maximum allowable deviation of the turning position in the pitch feed direction. Is set.

  If it is determined in step 204 that the adhesive peeling mark 34 does not exist within a predetermined range from the component suction position, the process proceeds to step 208, where it is determined that the twisted state of the top tape 21 is normal, and this program is executed. finish.

  On the other hand, if it is determined in step 204 that the adhesive peeling mark 34 exists within a predetermined range from the component suction position, the process proceeds to step 205, where it is determined that the top tape 21 is not bent, and the next step 206. Then, the top tape pulling device 22 is operated, and the top tape 21 is removed from the component supply tape 12 by an amount corresponding to the defective portion to eliminate the defective portion. Thereafter, the process proceeds to step 207, where the count value of the number of consecutive occurrences of component suction mistakes (and / or suction failures) is reset. As a result, a component suction error (and / or suction failure) caused by a defective top tape 21 is prevented from being counted as a component suction error (and / or suction failure) caused by the device side. To do.

  Note that the method for determining whether the top tape 21 has been bent is not limited to the method of step 204 described above. For example, the position of the start edge of the adhesive peeling mark 34 is determined based on the image recognition result of the adhesive peeling mark 34. The amount of deviation in the pitch feed direction at the top tape turning position (the amount of deviation from the edge of the opening 26) is measured, and the amount of deviation in the pitch feed direction at the top tape turning position is the maximum allowable deviation amount. Whether or not the top tape 21 is twisted may be determined based on whether or not the upper limit is exceeded.

  In the second embodiment described above, an area including the opening 26 of the tape pressing member 25 is picked up by the camera 33, and the picked-up image of the camera 33 is subjected to image processing to obtain the top tape turning position (adhesive peeling mark 34). Is recognized, and the top tape 21 is turned off based on the image recognition result, the top tape pulling device 22 is operated and the top tape 21 is removed from the component supply tape 12 by the amount of the defective portion. Since the twisting failure is eliminated, when the top tape 21 is twisted, the top tape pulling device 22 is automatically operated to automatically eliminate the twisting failure of the top tape 21, Productivity can be improved by reducing the occurrence rate of component suction failure and suction mistake.

  In the second embodiment, the top tape pull-out device 22 is automatically operated when the top tape 21 has a twisting failure when it is detected based on the image recognition result of the image captured by the camera 33. However, for example, when a turning failure of the top tape 21 is detected, a warning is displayed on the display 35 and / or a sound output device 36 such as a speaker is operated to generate a warning sound or the like. And the operator may be urged to eliminate the bending failure of the top tape 21 by manual operation of the top tape drawing device 22.

Further, in the present embodiment 2, as a reference example was the presence or absence of defects turning of the top tape 21 for automatic determines based on the image recognition result of the image captured by the camera 33, relating to the present invention, in step 202 It is conceivable that an image captured by the camera 33 is displayed on the display 35, and the operator looks at the display image on the display 35 to visually determine whether the top tape 21 is bent . Even in this case, since the image around the turning position of the top tape 21 can be enlarged and displayed on the display 35, the presence or absence of the turning failure of the slit 29 can be confirmed more accurately and easily than before.

  In the second embodiment, the image taken by the camera 33 is used to determine whether or not the top tape 21 is twisted. In the third embodiment of the present invention shown in FIG. 7, the height measuring sensor 41 is used to measure the top tape 21. It is determined whether or not there is any sag failure.

  Specifically, the height measuring sensor 41 is attached to the mounting head 40 that holds the suction nozzle 39, and the height of the carrier tape 27 is set, for example, the edge of the opening 26 that is the normal turning position of the top tape 21. The height measurement sensor 41 measures at a fixed position set within a range from the component suction position to the component suction position, and the presence / absence of a bending defect of the top tape 21 is determined based on the height measurement value. In this case, since the height of the measurement value measured at a certain position increases as the top tape twist position shifts in the pitch feed direction, the height measurement value of the carrier tape 27 measured by the height measurement sensor 41 is determined. Whether or not the top tape 21 is twisted may be determined based on whether or not the value is greater than or equal to the value. As the height measuring sensor 41, for example, a non-contact type distance sensor such as a laser sensor or an ultrasonic sensor may be used.

  The process of determining whether or not the top tape 21 is twisted based on the height of the carrier tape 27 measured by the height measuring sensor 41 described above is executed by the control unit 32 of the component mounting machine, and is referred to in the claims. A function as a defect determination unit is realized. Other matters are the same as those in the second embodiment.

  Also in the third embodiment described above, the same effect as in the second embodiment can be obtained. In the first embodiment as well, the height measuring sensor 41 may be used to measure the height of the top tape 21 to confirm the use / non-use of the slit 29. Specifically, for example, the height of the top tape 21 is measured by the height measuring sensor 41 at a fixed position set within the range from the edge of the opening 26 of the tape pressing member 25 to the slit 29, and the height is measured. The use / non-use of the slit 29 may be confirmed depending on whether the measured value is equal to or less than the determination threshold value.

  In addition, it goes without saying that the present invention can be implemented with various modifications within a range not departing from the gist, such as appropriately changing the configuration of the tape feeder 10.

  DESCRIPTION OF SYMBOLS 10 ... Tape feeder, 11 ... Feeder main body, 12 ... Parts supply tape, 13 ... Tape reel, 15 ... Tape guide member (tape passage), 16 ... Sprocket (pitch feed mechanism part), 17 ... Sprocket hole, 21 ... Top tape 22 ... Top tape drawing device, 23a, 23b ... Top tape drawing roller, 25 ... Tape pressing member, 26 ... Opening portion, 27 ... Carrier tape, 28 ... Parts, 29 ... Slit, 31 ... Tape feeder control unit, 32 Control unit of component mounter (image processing means, turning defect determination means), 33 ... camera, 34 ... adhesive peeling trace, 35 ... display (display device), 36 ... audio output device, 39 ... suction nozzle, 40 ... Mounting head, 41 ... height measuring sensor

Claims (9)

A component supply tape formed by releasably bonding the top tape to the upper surface of a carrier tape containing the components at a predetermined pitch is attached to the tape feeder, and the component supply tape is removed from the component supply tape at a predetermined position in the tape passage of the tape feeder. In the tape feeder that peels off the top tape to expose the components in the carrier tape and supplies them to the component mounting machine,
A camera for imaging an area including a boundary (hereinafter referred to as “top tape turning position”) between a top tape peeled off from a component supply tape mounted on the tape feeder and an exposed portion of the carrier tape;
Image processing to the component supply tape attachment state checking apparatus of the tape feeder, characterized in that an image processing means you recognize the state of peeling preparative Pputepu the captured image of the camera. The tape path of the tape feeder is provided with a tape pressing member that presses the lifting of the component supply tape on the front side of the component suction position where the component supply tape sucks the component with the suction nozzle. The top tape peeling opening and slit are formed, and the top tape is peeled off from the component supply tape at any of the opening and the slit, and can be pulled out.
The image processing means recognizes whether the top tape pulling position is the opening or the slit by recognizing the top tape turning position based on an image captured by the camera. The component feeder tape mounting state confirmation device for the tape feeder according to claim 1.   3. The tape feeder component supply according to claim 2, wherein warning information is output when it is determined that the drawing position of the top tape is different from the designated position based on the image processing result of the image processing means. Tape loading status confirmation device.   The image processing means recognizes the top tape turning position based on a captured image of the camera, and recognizes whether there is a top tape turning defect in which the top tape turning position is shifted in the feeding direction of the component supply tape. The tape feeder component supply tape mounting state confirmation device according to any one of claims 1 to 3. The tape feeder has a top tape drawing device that pulls the top tape in a direction opposite to the feeding direction of the component supply tape so as to peel off the top tape from the component supply tape in accordance with the feeding operation of the component supply tape. Provided,
When the top tape turning failure is detected based on the image processing result of the image processing means, the top tape pulling device is operated and the top tape is turned off from the component supply tape to remove the defective portion. 5. The component feeder tape mounting state confirmation device for a tape feeder according to claim 4, wherein the defect is eliminated.   5. The component supply tape mounting state confirmation device for a tape feeder according to claim 4, wherein warning information is output when a defective top tape is detected based on an image processing result of the image processing means.   The image processing means recognizes an image of the top tape turning position by recognizing an adhesive peeling mark on a back surface of the top tape peeled off from a component supply tape based on a captured image of the camera. The component supply tape mounting state confirmation apparatus for a tape feeder according to any one of claims 1 to 6.   8. The component supply tape mounting state confirmation device for a tape feeder according to claim 1, wherein the camera uses a substrate mark recognition camera mounted on the component mounter. A component supply tape formed by releasably bonding the top tape to the upper surface of a carrier tape containing the components at a predetermined pitch is attached to the tape feeder, and the component supply tape is removed from the component supply tape at a predetermined position in the tape passage of the tape feeder. The top tape is peeled off so that the components in the carrier tape are exposed and supplied to the component mounting machine, and the top tape peeled off from the component supply tape is pulled out in the direction opposite to the feeding direction of the component supply tape. In the tape feeder
A height measuring sensor for measuring the height of the carrier tape at a fixed position;
Based on the measurement result of the height measuring sensor, it is determined whether or not there is a top tape turning defect in which the boundary between the top tape peeled off from the component supply tape and the exposed portion of the carrier tape is shifted in the feeding direction of the component supply tape A tape feeder component supply tape mounting state confirmation device characterized by comprising:

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