JP2003174283A - Electric part feeder, method for feeding electric part and system for mounting electric part - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain an electric part feeder which can feed an electric part more stably, a system for mounting an electric part and a method for feeding an electric part using the electric part feeder. <P>SOLUTION: In the electric part feeder comprising a part feeder for feeding an electric part at a predetermined part feeding section, means for suppressing or preventing part feed miss functions when requiring care for part feed because of occurrence of a part feed miss or of high possibility of occurrence. When the feed miss suppressing/preventing means delays the operational speed of the part feeder, operation is stabilized sufficiently. In case of an electric part feeder equipped with a tape feeder of a tape type electric part, part feed miss caused by incomplete stripping of a cover tape can be suppressed/prevented effectively. It is more effective when a part feed miss occurs frequently during a set period following to replacement of a tape type electric part and that period is set as the time of requiring care. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric component supply device used for an electric component mounting operation, an electric component supplying system, and a method for supplying an electric component when performing an electric component mounting operation.

[0002]

2. Description of the Related Art An electric component mounting work performed by an electric component mounting system is a work for mounting an electric component (including an electronic component) held by a mounting head on a surface of a circuit board to assemble an electric circuit. In such an electric component mounting operation, the electric component is supplied from the electric component supply device. The electrical component mounting device used in the electrical component mounting work includes, for example, an electrical component supply device including a tape feeder for feeding taped electrical components to supply the electrical components one by one, and storing them in a storage container in a loose state. There are various component feeders, such as an electrical component feeder equipped with a bulk feeder that feeds the produced electrical components one by one by aligning them and sending them out. The work of mounting the electric components is becoming faster and faster, and accordingly, more stable supply of the electric components is desired for the electric component supply device.

[0003]

Problems to be Solved by the Invention, Means for Solving the Problems, and Effects The electric component supplying device is a complicated device, and causes electric component supplying errors due to various causes. That is, a phenomenon may occur in which electrical components are not supplied to proper positions in proper forms. When the electric component supply device is used for some work such as an electric component mounting work, a component supply error leads to a defect in the work. If the work is an electric component mounting work, it may cause a mounting failure.

The present invention has been made in view of the above circumstances, and an object thereof is to obtain an electric component supply apparatus capable of supplying electric components more stably, an electric component mounting system and an electric component supply method using the same. According to the present invention, the electric component supply device, the electric component mounting system, and the electric component supply method of the following aspects can be obtained. Similar to the claims, each mode is divided into paragraphs, each paragraph is numbered, and the numbers of other paragraphs are referred to as necessary. This is just to facilitate understanding of the present invention,
The technical features and combinations thereof described in the present specification should not be construed as being limited to those described in the following sections. Moreover, when a plurality of items are described in one section, it is not always necessary to adopt the plurality of items together. It is also possible to select and use only some items.

In the following items, (1) corresponds to claim 1, (2) to claim 2, (5) to claim 3, and (9) to claim. 4, claim (12) is claim 5, claim (31) is claim 6, and claim (41) is claim 7.
The item (51) corresponds to the claim.

(1) An electric component supply device including a component feeder for supplying an electric component at a prescribed component supply unit, in which a component supply error has occurred or is highly likely to occur, and attention must be paid to the component supply. An electrical component supply device characterized by comprising a supply error suppression / prevention means for suppressing or preventing the component supply error at the time of caution.

When an electric component is not supplied in a proper state in the component supply unit, that is, when an electric component supply error occurs, the work using the electric component is likely to be a defective work. Taking electrical component mounting work as an example, it causes the phenomenon that the mounting head fails to hold the electric component or cannot hold it in a proper posture, resulting in loss of assembly work and poor mounting of the assembled electric circuit. There is a high possibility that The component supply error often occurs continuously, and often occurs when some factor exists. Therefore, in the present invention, for example,
It handles the time or period when it is predicted that a supply error is likely to occur in the next electrical component supply when it is necessary to pay attention to the component supply, and suppresses or prevents the component supply error that functions at the time of caution. By providing the means for doing so, it becomes possible to more stably supply the components.
Various aspects of the configuration of the electrical component supply device, including component supply errors, cautions, and supply error suppression / prevention means, will be sequentially and specifically described in the following sections.

(2) The electrical component supply apparatus according to item (1), wherein the supply error suppression / prevention means includes an operation speed reduction means for decreasing the operation speed of the component feeder.

The component feeder that constitutes the electric component supply device has a complicated mechanism and is complicated. Therefore, if the operating speed is too fast, the operation tends to become unstable.
For example, in the case of an electric component supply device used for electric component mounting work, in the current electric component mounting work, mounting of one electric component is extremely fast, that is, 0.1 seconds or less. In some cases, if the component feeder is forced to follow such a high-speed mounting operation even at the time of caution in which a component supply error is likely to occur, the possibility of a component supply error increases. Therefore, the device of the aspect described in this section capable of slowing down the operation of the component feeder at the time of caution can efficiently suppress / prevent component supply errors.

The component feeder is operated by some drive source. To reduce the operation speed of the component feeder, the speed of the drive source, for example, when a motor is used as the drive source, the rotational speed of the motor may be decreased.
Therefore, in that case, the operation speed-reducing means includes the drive source and the control device for controlling the drive source. Incidentally, the electric component supply device of the present invention, even if the component feeder itself has a drive source, or
It may have a drive source outside the component feeder. When the drive source exists outside the component feeder, for example, in the case of an electrical component supply device used for mounting electrical components, the driving force of the drive source of the mounting device is transmitted to the component feeder by some means and the component feeder is used. This is the case when is activated. In this case, in addition to the component feeder, the electric component supply device is configured to include its drive source, a control device that controls the drive source, and the like.

As used herein, "to reduce the speed of the component feeder" means to make the operation speed slower than the normal operation speed. For example, in one component feeder, when caution is required, a state in which the operation speed becomes slower than before and after that is realized. Further, for example, in the case of an electric component supply device including two or more component feeders, if one of the component feeders is identified as being in need of attention, the operating speed of that component feeder is different from that of other components. A state in which the operation speed of the feeder is slower is realized. For example, in a component feeder for taped electric parts as will be described in detail later, a so-called tape feeder, when the operation speed of a certain tape feeder is slowed, the taped electric parts and the feed pitch targeted by the tape feeder are A difference in operating speed can be observed between the tape-dried electric components and another tape feeder.

The supply error suppression / prevention means is not limited to this operation speed reduction means. For example, an operator (may be a worker) that caution is required
It is also possible to adopt the caution notification means for notifying the customer as a means for suppressing / preventing supply errors. Specifically, it is possible to employ means such as displaying that on the display that displays the status of the component feeder and causing a warning light to emit light, so as to draw the operator's attention and minimize the influence of supply mistakes. Is. Further, for example, an operation stopping means for stopping the operation of the component supply device or the component feeder can be adopted as the supply error suppressing / preventing means. A mode in which the supply of electric components is stopped and the operator checks or adjusts when the possibility of a supply error is high is applicable. Further, the operation delaying means, the caution notifying means, the operation stopping means, etc. may be combined and employed as the supply error suppressing / preventing means.

In some cases, the operation speed-reducing means can stabilize the operation of the component feeder while continuing the supply, instead of stopping the supply of the electric component. For example, even if a component supply error occurs once, it may be possible to recover by eliminating the cause of the component supply error by slowing down the operation. In that case, the component supply device may It also has a merit of reducing a decrease in efficiency of work such as mounting work of electric components used.

Decreasing the operation speed of the component feeder may slow down all of the series of feeding operations of the component feeder, or may slow down only part of the feeding operation. . For example, in the case of a component feeder for taped electrical components, which will be described in detail later, there are two operations: carrier tape feeding action and cover tape peeling action.
A series of supply operations may be configured to include one operation. In this case, both the feeding operation and the peeling operation may be delayed, and only one of the feeding operation and the peeling operation is delayed as long as the component supply error can be substantially suppressed / prevented. It may be a mode that does.

(3) The caution period is the caution period,
The electrical component supply device according to item (2), wherein the operation speed-reducing means keeps the decreased operation speed constant throughout the caution period.

In the present invention, the time of caution may be a time point or a period. For example, when caution is required, a time when a certain requirement is satisfied can be set as a start period, and a time when the requirement is not satisfied or a time when another requirement is satisfied can be set as an end period. In this case, for example, the elapse of a set time period or the supply of a set number of electric components can be set as the termination requirement at the time of caution. It is during such a period when attention is needed, that is,
When the caution period is set, the operation speed of the component feeder is reduced at a constant speed throughout the period, which is the mode described in this section. The constant operation speed during the caution period has an advantage that the control of the component feeder can be simplified.

If the requirement for terminating the caution period is appropriate, it is possible to return to the normal speed operation after the possibility of a supply error disappears, and it is possible to supply electric components efficiently. Become. Even if the caution period is started due to a supply error, it is possible to expect the parts feeder to recover to a stable state by slowing down the operation speed of the parts feeder. If the normal operating speed is restored according to the requirements, a stable supply of electric components will be provided.

(4) The caution period is the caution period,
The electrical component supply device according to item (2), wherein the operation slowing means increases the slowed operation speed stepwise or continuously from the beginning to the end of the caution period.

The mode of this section differs from the above mode in that the operating speed is changed within the caution period, and the operating speed of the component feeder is gradually or gradually increased. If the supply error is most likely to occur immediately after the caution period starts, slow down to a considerable speed at that time, and increase the operation speed stepwise or continuously after that time. And get closer to normal speed,
The loss due to the supply delay can be further reduced.

(5) The component feeder has a plurality of electric components, a carrier tape in which the plurality of electric components are aligned and held in the longitudinal direction, and a cover tape which covers the plurality of electric components and is attached to the carrier tape. The electrical component supply device according to any one of (1) to (4), wherein the electrical components are supplied one by one from a taped electrical component including a.

[0021] In an electric component supply device including a so-called tape feeder as a component feeder, the supply error suppressing / preventing means is applied to the tape feeder. A tape feeder intended for a taped electric component is configured to include devices such as a carrier tape feeding device and a cover tape peeling device, and its mechanism is complicated. Therefore, there is a great merit in adopting the supply error suppressing / preventing means in the electric component supplying device having the tape feeder. Since accurate parts are supplied by devising such as synchronizing the operation timing of each component severely, especially when operating at high speed, it operates slightly compared to when operating at low speed. Will be inferior in stability. Therefore, when the operation delay means for slowing down the operation speed of the tape feeder is provided at the time of caution in which a supply error is likely to occur, the device can effectively suppress or prevent the supply error.

The taped electric component (also referred to as "taping electric component" or simply "taping") is a carrier tape having a component accommodating recess formed at a predetermined pitch in the longitudinal direction and accommodating one electric component at a time. And a cover tape attached to a carrier tape to cover the accommodated electric components. For example, embossed carrier type taping with a structure in which parts are put in a plastic embossed carrier tape and a top cover tape is pasted on the upper side, or a bottom tape is stuck on the lower side of a paper or plastic square hole punch carrier tape body. There are various types of tape such as a square hole punch carrier type taping having a structure in which parts are put in this tape and a top tape as a cover tape is attached to the upper side. Further, the taped electric parts have various modes such as one set in a tape feeder in a state of being wound on a reel, one set in a tape feeder in a state of being folded and stored in a predetermined container. Exists. The component feeder of the electrical component supply device described in this section is
The tape-shaped electric component of such various modes can be targeted.

As described above, the tape feeder may have a drive source such as a motor in the feeder main body in which the carrier tape feeding device, the cover tape peeling device, etc. are arranged. It may have an external drive source. For example, in the case of an electric component supply device incorporated in an electric component mounting system, the drive source of the electric component mounting device in the system functions as a drive source of the tape feeder, and it may be transmitted by some transmission mechanism such as a cam mechanism or a link mechanism. , The drive parts such as the drive lever and the drive bar of the tape feeder are operated,
The tape feeder may be of a type that is operated to perform a feeding operation.

The electric component supplying device of the present invention is not limited to the electric component supplying device including the above-mentioned tape feeder, and the electric components in a loose state are accommodated in the container and the electric component is supplied from the container. A feeder in which the parts are aligned and conveyed and supplied one by one in the part supply unit,
Even an electric component supply device configured to include a so-called bulk feeder can be the target. If it is possible to suppress or prevent component supply errors by slowing down the bulk feeder's series operation speed,
It is also effective to employ a motion retardation means as a preventive measure.

(6) The electrical component supply device according to the item (5), wherein the component supply error includes that caused by a defective peeling of the cover tape from the carrier tape.

In a tape feeder intended for taped electric parts, the electric parts are supplied by peeling the cover tape from the carrier tape. In such a tape feeder, there is a high possibility that a component supply error will occur when the peeling operation is not accurately performed. For example, when the cover tape is slackened, the cover tape may be caught between various members forming the tape feeder, and the cover tape may not be peeled off. That is, the defective peeling of the cover tape becomes a major cause of component supply error in the electrical component supply device using the tape feeder as the component feeder. Therefore, in view of the frequent occurrence of supply errors due to defective peeling of the cover tape, the aspect described in this section efficiently suppresses or prevents component supply errors of the electrical component supply device for taped electrical components. be able to.

When targeting taped electrical parts, component supply errors are not limited to those caused by the above-mentioned defective peeling of the cover tape, but may also be caused by other causes such as the carrier tape feeding error. is there. In the electric component supplying apparatus of the present invention, it is not hindered to use the means for suppressing or preventing the component supplying error due to other factors.

(7) The component feeder intermittently feeds the carrier tape for a length corresponding to the holding pitch of the electric components, and a tension of a predetermined value or more is applied to the cover tape. And a cover tape peeling device that peels the cover tape from the carrier tape while preventing the above-mentioned problem.

In the case of a component feeder for taped electric components, that is, a tape feeder, the cover tape is generally peeled off by pulling the cover tape. In this case, since the cover tape is often made of a relatively thin film, there is a possibility that the cover tape may break when a large tension is applied during the peeling. Therefore, the structure described in this section is adopted to prevent excessive tension from being applied to the carrier tape. However, when a peeling device that peels while limiting the tension by using the restoring force of an elastic member such as a spring is used,
In particular, when the tape feeder is operated at high speed, the peeling operation cannot follow in a series of feeding operations, and the phenomenon that the cover tape is not accurately peeled easily occurs. In the component supply device having the configuration described in this section, in which peeling failure is likely to occur from the cover tape, it is effective to provide a supply error suppression / prevention means, and in particular, it is more effective when it is an operation delay means. Target.

The carrier tape feeding device is a device for feeding the carrier tape by an amount corresponding to the holding pitch of the electric component, and intermittently moves the electric component held by the carrier tape and conveys it to the component supplying section. Carrier tape
Generally, the carrier tape feeding device has a sprocket, and the teeth of the sprocket are engaged with the feeding holes in parallel with the row of the held electric parts at a predetermined pitch. A mechanism in which the carrier tape is fed by rotating the sprocket by a predetermined angle in a combined state is generally adopted. For example, the tape feeder has a drive motor, and the motor is rotated by a predetermined angle to rotate the feed roller by a predetermined angle to feed the carrier tape by the component holding pitch, or in one direction such as a ratchet mechanism. There is a system having a clutch mechanism, which rotates a feed roller by a predetermined angle by operating a drive lever, and feeds a carrier tape by a component holding pitch, and any system can be adopted. The carrier tape feeding device may feed the carrier tape by a length corresponding to the component holding pitch in one feeding operation, and is divided into a plurality of feeding operations and has a length corresponding to the component holding pitch. Alternatively, a carrier tape may be sent.

In the tape feeder, the cover tape is peeled off by moving the peeling point, which is the position where the cover tape is peeled from the carrier tape, relative to the carrier tape. More specifically, the peeling point of the cover tape is moved relative to the carrier tape so that the peeling point moves in a direction opposite to the feeding direction, that is, backward. The cover tape peeling device generally has a peeling point defining member that defines the peeling point, and when the cover tape is tensioned, the peeling point defining member is set so that the peeling point retracts. The cover tape is peeled off by moving relative to the carrier tape. In addition, the tape feeder usually has a cover member that covers the carrier tape so that the electric components do not jump out at the portion where the cover tape is peeled off. In that case, when the cover member is formed with a drawing slit for drawing the cover tape, one of both edges of the drawing slit, for example, the rear edge when the cover tape is folded back, is peeled off. There is also a structure in which a point defining member is formed. In the tape feeder configured as described above, the cover tape is peeled off by feeding the carrier tape forward while applying tension to the cover tape in a state where the position of the peeling point defining member is fixed. Further, even when the peeling point defining member member is retracted while applying tension to the cover tape in a state where the position of the carrier tape is fixed, the cover tape is peeled off.

As described above, the cover tape peeling device is
It is possible to employ a configuration including a relative movement generating device that generates relative movement between the peeling point defining member and the carrier tape. More specifically, when the cover tape is peeled off when the position of the carrier tape is fixed, the peeling point defining member retracting device is included. Also, when the cover tape is peeled off when the position of the peeling point defining member is fixed,
It can be said that the cover tape peeling device is configured integrally with the carrier tape feeding device. In any case, for example, when the cover member is present, when the cover tape is not set properly due to sagging of the cover tape, etc. When a cover tape which is not peeled off from the carrier tape is inserted, the cover tape is not peeled accurately, resulting in poor peeling, which may cause a component supply error.

The cover tape peeling device may include a device for processing the peeled cover tape, and the cover tape processing device has a structure including a cover tape winding device for winding on a reel. Various configurations can be adopted, such as a configuration including a cover tape feeding device that feeds the peeled cover tape with a pinch roller or the like for holding the peeled cover tape in a long state or cutting the cover tape, and the like. For example, when a cover tape winding device is included, the reel is biased in the winding direction by a spring or the like. Although it is prevented from being applied to the tape, any of these types of peeling devices can be the target of the embodiment described in this section.

Although the general structure of the tape feeder has been exemplified above, the electric component supplying apparatus described in this section can be applied to an apparatus having various known tape feeders. . Note that the carrier tape feeding device and the cover tape peeling device are not limited to being driven by the same drive source, and may be, for example, those that are individually controlled and operated by different motors or the like. is there.

(8) When the cover tape peeling device does not peel the cover tape by releasing the tension on the cover tape during the feeding operation of the carrier tape feeding device, and the feeding operation is not performed The electric component supply device according to item (7), wherein the cover tape is peeled off by applying tension to the cover tape.

As described above, in some tape feeders, the feeding of the carrier tape and the peeling of the cover tape are performed at the same time, while the feeding of the carrier tape and the peeling of the cover tape are not performed at the same time. There is also a tape feeder. In the case of a tape feeder in which both are not performed at the same time, the tension applied to the cover tape is often released when the carrier tape is fed. For example, at the time of feeding the carrier tape, to allow the movement of the peeling point along with the movement of the carrier tape, that is,
To prevent relative movement between the carrier tape and the peeling point,
A cover tape feeding device for feeding the cover tape is provided between the cover tape processing device and the peeling point defining member to prevent the cover tape from peeling when the carrier tape is fed. In such a tape feeder, since the mechanism is complicated, there is a high possibility of causing peeling failure of the cover tape. Especially when operated at a high speed, the operation of the feeder is unstable and the risk thereof becomes high. Therefore, in the component supply device according to the aspect of the present section, it is particularly effective to include the supply error suppression / prevention means, and it is even more effective when it is the operation speed reduction mechanism.

(9) The electrical component supply apparatus according to any one of items (5) to (8), wherein the caution time includes a period of a length set from the time of replacement of the taped electrical component.

As described above, the electrical component supply device provided with the tape feeder is apt to cause component supply error. A component supply error often occurs after replacing the taped electrical component. That is, in the tape feeder, the replacement of the taped electric component becomes a major cause of component supply error. This is because the feeder, which was operating steadily, is temporarily stopped and then restarted under the condition that a new taped electrical component is set.For example, when the operator replaces the taped electrical component, it can be set correctly. It often occurs when there is not. More specifically, this is a case where the peeling failure of the cover tape occurs due to the fact that the cover tape is not set in the cover tape peeling device without properly performing the treatment. Therefore, the electrical component supply device described in this section that certifies a predetermined period after component replacement as a caution period after component replacement at the time of caution and the supply error suppression / prevention means functions during that period is one of the major factors. It is possible to efficiently prevent the occurrence of a component supply error that depends on it.

Specifically, for example, when the electric component supply device is provided with a predetermined information input device, when the component is replaced, the operator inputs the information that the component has been replaced from the input device. Thus, it is determined that the caution period has started after the parts are replaced, and thereafter the parts are supplied by slowing the operation speed of the feeder. Further, instead of the operator's input, for example, a detector is attached to a member that is inevitably moved when setting the taped electric component (for example, the above-mentioned cover member that can be opened and closed at the time of setting), and that member is It may be detected that the component has been replaced when it is moved. In other words, this is a mode in which means for automatically detecting the replacement of the taped electric component is adopted.

At the end of the caution period after parts replacement, for example,
It can be arbitrarily set, such as when the set time has elapsed or when the component feeder for the component replacement supplies the set number of electric components. The period may be ended when the possibility of component supply error disappears or becomes low.

Although the embodiment described in this section is limited to the electric component supplying device having the tape feeder, the fact that the predetermined period after the component replacement is a caution time means that the component feeder is a bulk feeder or the like. In many cases, it is also effective for the type of parts feeder. This is because, for example, in the case of a bulk feeder, a component supply error may occur due to different feeding conditions of the electric components in the bulk state. In that case, an electric component supply device having a bulk feeder may be used. In the case where the bulk parts are exchanged or the parts are replenished in the container, the predetermined period thereafter is recognized as the caution period, and the supply error suppressing / preventing means can be operated.

(10) Any of the items (5) to (9), wherein the caution time includes a period starting from a time point when a high supply error probability state in which a component supply error is likely to occur is detected. The electrical component supply device according to claim 1.

In the case of the electric component supply device having the tape feeder, the timing after the component replacement as described above is not limited to the case of requiring caution. Various other factors may cause a component supply error, and it is possible to detect a state in which various supply errors may occur and start the caution period. For example, when taped electric parts are connected and used, there is a high possibility that a part supply error may occur at the connection part. In this case, it is also possible to detect the connection portion and set the timing when the connection portion passes through the delivery device, the peeling device, or the like as a time of caution.

In the electrical component mounting operation, the supplied electrical component is held and mounted by the mounting head. For example, the component imaging device or the like observes whether or not the component is held and the holding posture. At this time, if the electric component is not held or the holding posture is abnormal, there is a high possibility that a supply error has occurred. In that case, it can be determined that there is a high possibility that a supply error will continue to occur in the component feeder. The mode described in this section may be, for example, a mode in which the caution period for the component feeder is started in such a case. Furthermore, if the mounting position of the actually mounted electrical component is displaced, it is determined that there is a high possibility that a supply error has occurred, and the caution period for the supplied component feeder is started. It can also be an aspect. It can be said that all of these are states in which there is a high possibility that a component supply error will occur, and these aspects are the aspects described in this section,
In other words, it can be said that this is a mode in which the possibility of a supply error is predicted from the high supply error possibility state, and the supply error suppression / prevention means functions. The mode in which the supply error suppression / prevention means functions in the caution period after the parts replacement described above can be said to be one mode of the mode described in this section. In addition, when the number of times of continuous supply is a predetermined number of times or more, this state is judged as a high possibility of supply error and the supply error suppression / prevention means is made to function, and the cover tape is peeled off. When targeting a difficult-to-tape electrical component, it is determined that the tape feeder is in a high supply error state while the taped electrical component is set, and the electrical component is supplied from the taped electrical component. It is possible to adopt a mode in which various states are determined to be a supply failure high possibility state, including a mode in which the entire period is set as a caution period, and two or more modes among the above-described modes are adopted. It is also possible to use together.

Not all of the above aspects include a detector in which the component feeder itself monitors its operation to directly detect a high potential supply error condition. The electric component supply device described in this section is not limited to the case where the electric component supply device itself is provided with the detector, but also when receiving information of detection by another device, or
The device may be a device in which the supply error suppression / prevention means functions by indirectly detecting the high supply error possibility state by receiving information on a command from an operator or the like. In that case, for example, when the control device of the electric component supply device has a part that receives information from another device or a part that receives command information from an operator, that part may cause a high supply error. It becomes a possibility information acquisition unit and detects that there is a high supply error possibility state. That is, the supply error high possibility information detection unit is configured to include the supply error high possibility information acquisition unit.

The technical features described in this section are not applicable only to an electric component supplying device for taped electric components, that is, an electric component supplying device having a tape feeder, and it is not limited to a bulk feeder or the like. It is also applicable to an electric component supply device having other types of component feeders. That is, the technical features described in this section can be applied to the electric component supply device described in (1) to (4).

(11) The electrical component supply device is provided with a cover tape peeling insufficient detection device that detects a case where the amount of peeling of the cover tape is too small as the supply error high possibility state. Electrical component supply device.

As described above, in the electric component supplying device having the tape feeder, the peeling failure of the cover tape is often caused. Therefore, the peeling amount of the cover tape,
That is, when the peeling length is too small, this is detected as a supply error high possibility state state, and the supply error suppression / prevention mechanism such as slowing down the supply device is caused to function according to the aspect of this section, It will be possible to effectively suppress and prevent supply mistakes. That is, the cover tape peeling insufficient detection device is an aspect of the supply error high possibility state state detection device. A specific detection method is, for example, in the case of a tape feeder including a cover tape winding device as the cover tape processing device, as described later, the winding device swings by being applied with a winding force. When the take-up lever is provided, it is possible to adopt a mode in which a detection device is provided that detects that the amount of peeling of the cover tape is too small when the lever does not operate more than a predetermined amount. In addition, when the cover tape processing device moves while engaging with a roller such as a guide roller, the amount of rotation of the roller is measured, and when the amount of rotation is less than a predetermined value, the amount of peeling of the cover tape is too small. It is also possible to employ a mode in which a detection device for detecting that

(12) A plurality of component feeders are provided, and a supply error suppressing / preventing means individual control device for individually operating the supply mistake suppressing / preventing means is provided when caution is required for each of the component feeders (1). An electric component supply device according to any one of (1) to (11).

In the case of an electric component supplying apparatus having a plurality of component feeders, when there is a time of caution for each component feeder, not only the supply error suppressing / preventing means functions for all the component feeders but also the component feeders. It is possible to operate the supply error suppression / prevention measures only for For example, when the supply error suppression / prevention means is the operation speed reduction means described above, for example, the operation speed is slowed only for the component feeder in the high supply error possibility state. In the mode in which the supply error suppression / prevention means functions only in the component feeders that are likely to cause supply errors, no action is taken on the component feeders that are determined to be good, so the component supply efficiency is improved. Has the advantage that it can be kept high. When the electric component supply device has a control device that comprehensively controls a plurality of component feeders, a part of the control device that controls as described above corresponds to the supply error suppression / prevention means individual control device.

(21) An electric component supply device including a component feeder for supplying an electric component in a predetermined component supply section, which detects a state in which a component supply error is likely to occur, and a supply error high possibility state detection An electric component supply device comprising a device.

An electric component mounting apparatus of a mode including various supply error high possibility state detecting devices including the above-described cover tape peeling insufficient detection device. Regardless of whether or not the above-described supply error suppressing / preventing means is provided, the possibility of occurrence of a supply error can be predicted, so that useful component feeder information can be obtained and a high-performance electric component supplying device can be obtained. The specific mode such as the phenomenon by which the supply failure high possibility state is detected is not particularly limited, but various modes as exemplified above can be adopted. .

(31) An electrical component supply device according to any one of items (1) to (12) and an electrical component mounting device for mounting an electrical component supplied from the electrical component supply device on a circuit board. Including electrical component mounting system.

An electric component mounting system using the electric component supply device of the present invention is provided. Since component supply errors are efficiently suppressed and prevented, the electrical component mounting system has high mounting efficiency.

(41) A method of supplying electric components using a component feeder for supplying electric components in a predetermined component supply unit, in which a component supply error has occurred or is highly likely to occur, and attention should be paid to the component supply. When the caution is required, the operating speed of the component feeder is slowed down to supply the electrical component.

This is a method for supplying electric parts in which mistakes in supplying parts are efficiently suppressed and prevented. The technical features described in the above items (3) to (12) can be applied to the electrical component supply method described in this item.

(51) A method of supplying an electric component using an electric component supply device in which a plurality of component feeders for supplying an electric component in a predetermined component supply unit are provided, wherein the component in each of the component feeders is An electrical component characterized by slowing down the operation speed of the individual component feeder to supply an electrical component when a supply error has occurred or is likely to occur and caution is required for component supply. Supply method.

In the supply of electric components using a plurality of component feeders, the operating speed of each component feeder can be individually slowed down, so that a more efficient electric component supply method is provided. The technical features described in the above items (3) to (11) can be applied to this item.

[0059]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below.
A detailed description will be given with reference to the drawings. For convenience of explanation,
<Overall configuration of electronic component mounting system>, <Structure and operation of tape feeder>, <Component supply error due to operation of tape feeder>, <Control device of electronic component mounting system>, <Caution and suppression of supply error>・ Preventive measures> will be explained in order.

<Overall Configuration of Electronic Component Mounting System> FIG.
FIG. 1 shows an outline of an electronic component mounting system (a type of electrical component mounting system) centering on a part closely related to the present invention. This electronic component mounting system is a so-called rotary head type electronic component mounting device, and the electronic component mounting device 1
0 and the electronic component supply device 12 are included. The electronic component mounting apparatus 10 includes a circuit board 1 on which electronic components are mounted.
A substrate holding device 16 for holding 4 is provided. The substrate holding device 16 is supported by an XY table device (not shown) and can be moved within a horizontal plane (X-axis direction and Y-axis direction shown in the drawing) according to the mounting position of the electronic component to be mounted. The XY table device is configured to include an X-axis motor 20 and a Y-axis motor 22 (both are servo motors; see FIG. 6) as drive sources and two ball screw mechanisms.

In the electronic component mounting apparatus 10, a plurality of (16 in this embodiment) mounting heads 30 intermittently rotate about a vertical axis (axis parallel to the Z axis in the drawing).
Equipped with 2. The mounting head 30 has a component holding section 34 for sucking and holding an electronic component at a lower pressure, and descends at a component suction station (intermittent rotation position indicated by A in the figure) to suck and hold an electronic component. At the component mounting station, which is the station opposite to the component suction station (at a position separated by 180 °), the electronic component held is mounted on the surface of the circuit board 14 held by the board holding device 16. The operation of the mounting unit 32, specifically, the operations such as the intermittent rotation and the raising / lowering of the mounting head 30 are performed by a mounting unit driving device (not shown). This mounting unit drive device is configured to include a mounting unit drive motor 38 (see FIG. 6) which is a servo motor serving as a drive source, a cam mechanism, a link mechanism, and the like.

The electronic component supply device 12 is a kind of component feeder and includes a large number of tape feeders 50 for supplying electronic components from taped electronic components. Each of the tape feeders 50 supplies one kind of electronic component at the component supply unit 52. The tape feeders 50 are aligned and supported by the feeder table 54 side by side in one direction (X-axis direction in the drawing), and the feeder table 54 is moved in the alignment direction (X-axis direction) by the feeder table moving device 56. To be The feeder table moving device 56 is configured to include a table moving motor 58 (servo motor: see FIG. 6) as a drive source, a ball screw mechanism 60, a slide mechanism, and the like. The tape feeder 50 is moved by moving the feeder table 54, and is moved to the component supply position (the position where the component supply unit 52 is located below the 32 component suction stations of the mounting unit). Electronic components are supplied from 50.

In addition to the electronic component mounting apparatus 10 and the electronic component supply apparatus 12, the present electronic component mounting system includes a carry-in conveyor for loading the circuit board 14 to the board holding device 16 and a circuit board (not shown). A system controller 70 (see FIG. 6) for controlling each component such as a carry-out conveyor for carrying out 14 from the substrate holding device 16, an electronic component mounting device 10, an electronic component supply device 12, and mounting work conditions. An input device 72 mainly including a keyboard for inputting various information to the system control device 70 (see FIG. 6).
(See FIG. 6), a display device 74 (see FIG. 6) mainly including a display for displaying the system status, etc., and a notification light 76 (FIG. 6) as a notification device for notifying an operator that the system is in a specific state. 6)) and the like.

<Structure and Operation of Tape Feeder> FIG. 2 shows a taped electronic component to be supplied by the tape feeder 50 of the electronic component feeder 12. 2A is a front view, FIG. 2B is a plan view, and FIG. 2C is a cross-sectional view taken along a plane perpendicular to the longitudinal direction. The taped electronic component 90 is
Carrier tape 94 having component accommodating recesses 92 formed at equal pitches in the longitudinal direction, electronic component 96 held in component accommodating recess 92, and cover tape adhered to carrier tape 94 to cover electronic component 96. And 98. Therefore, the electronic component 96 can be taken out by peeling the cover tape 98 from the carrier tape 94. Each of the widthwise both ends of the carrier tape 94 has a supported portion 1 continuous in the longitudinal direction.
00, 102 are formed, and one supported portion 100
Are formed wider than the other, and in the wider supported portion 100, feed holes 104 are formed aligned in the longitudinal direction at equal pitches. The taped electronic component 90 is wound around a component reel 106 serving as an electronic component holder, and the reel 106 is a component reel holding portion 108 (a portion opposite to the component supply portion 52) of the tape feeder 50.
(See FIG. 1).

FIG. 3 shows a main part of the tape feeder 50. The tape feeder body 120 is generally in the form of an elongated plate, and is installed upright on the feeder table 54 in a posture in which the longitudinal direction and the thickness direction are horizontal (see FIG. 1). To attach the tape feeder 50 to the feeder table 54,
The feeder mounting device 121 ensures that the mounting position is accurate. Taped electronic component 90
Is a pair of supported portions 100, 10 of the carrier tape 94.
2 is supported from below by the tape feeder main body 120, is covered with the cover member 122, and the tape feeder main body 120 is covered by the carrier tape feeding device 124.
In the longitudinal direction (Y-axis direction in the figure) of a constant pitch (electronic component 9
6 holding pitches). The component accommodating concave portion 92 of the carrier tape 94 moves in a groove (not shown) provided between the portions of the tape feeder main body 120 that support the supported portions 100 and 102 of the carrier tape 94, and the carrier tape 94 of the carrier tape 94. The height of the upper surface is substantially constant regardless of the size of the electronic component 96. FIG. 4 shows a taped electronic component 9
0 schematically shows the relationship between the operation of 0 and the cover member 122. The following description will be given with reference to FIG.

The tape feeder main body 120 also has a cover tape winding device 126 as a cover tape processing device.
Are attached by brackets 128. In the case of the tape feeder 50 of the present embodiment, the carrier tape feeding device 124 and the cover tape winding device 126 are operated by the mounting unit drive motor 38 that drives the mounting unit 32 of the electronic component mounting device 12 described above. The rotation of the mounting unit drive motor 38 is converted into the up-and-down motion of the elevating member 140 (see FIG. 1), which is a drive member, by a motion converting mechanism including a cam, a cam follower, and the like (not shown), and the elevating member 140 elevates and lowers the bracket. The drive bar 142 attached via 128 is moved up and down, and the carrier tape feeding device 124 and the cover tape winding device 126 are operated. It should be noted that the bracket 14 is provided below the elevating member 140.
4 is fixed, a roller 146 is rotatably attached to the bracket 144 around an axis parallel to the Y-axis direction, and the roller 146 abuts on the upper portion of the drive bar 142.

The drive bar 142 is rotatably attached to the support bar 150 rotatably attached to the bracket 128, and the drive bar 142 is pushed down by the lowering of the elevating member 140, whereby the drive bar 142 is attached. The drive lever 152 rotatably connected is rotated, and the cover member drive bar 154 and the rotating plate drive bar 156 rotatably connected to the drive lever 152 are moved. As a result, the cover member 122 connected to the cover member drive bar 154 is retracted, and the rotary plate 15 rotatably connected to the rotary plate drive bar 156.
8 is rotated in the opposite direction (clockwise in FIG. 3) around the axis of the support shaft 160, and the ratchet pawl (not shown) rotatably attached to the rotating plate 158 rides over the teeth of the ratchet wheel 162. Preparation for feeding is performed in the carrier tape feeding device 124. At this time, the taped electronic component 90, that is, the carrier tape 94 is not fed and remains stopped. The operation of the tape-shaped electronic component 90 and the cover member 122 at this time is shown in FIG.
4 (c) through FIG. 4 (b) through FIG. 4 (b).

The cover member 122 is formed with a drawing slit 170 extending in a direction perpendicular to the feeding direction, and the cover tape 98 is drawn from the drawing slit and connected to the cover tape winding device 126. As will be described later, tension is applied to the cover tape 98, and when the cover member 122 is retracted, the cover tape 98 is peeled off by an amount corresponding to the holding pitch of the electronic component 96. A cover tape 98 of a portion that covers the electronic component 96 located upstream of the component take-out position in the taped electronic component feeding direction, that is, the carrier tape feeding direction.
However, the electronic components housed in that portion are covered with the front portion of the pull-out slit 170 of the cover member 122, and the pop-out is effectively prevented.

The operation of the cover tape 98 at this time will be described in more detail below.
In the cover tape winding device 126, the winding lever 1
80 is rotated around the support shaft 184 by the biasing force of the tension coil spring 182 as an elastic member which is a kind of biasing means. Take-up lever 180 and support shaft 1
Between the take-up reel 186 rotatably supported by 84, the relative rotation of the take-up lever 180 in the take-up direction of the cover tape with respect to the take-up reel 186 is prevented, but the opposite relative rotation is permitted. 1 One-way clutch (not shown)
A second one-way clutch (not shown) is provided between the take-up reel 186 and the support shaft 184 to allow the take-up reel 186 to rotate in the cover-tape take-up direction but prevent the reverse rotation. ) Is provided. Therefore, when the take-up lever 180 is rotated in the cover tape take-up direction based on the urging force of the tension coil spring 182, the take-up reel 186 is rotated, and the cover tape 122 is retracted and the cover tape 98 is moved toward the carrier tape 94. Peel off and wind up. The drive lever 152 has two movable guide rollers 188 and 190, and the cover tape 98 is wound around the movable guide rollers 188 and 190 so that the drive lever 152 rotates downward. Then, the cover tape 98 having a fixed length is taken in.

By operating as described above, the cover tape 98 is separated from the carrier tape. The peeling point of the cover tape 98, that is, the cover tape 98 is the carrier tape 94.
The position where the cover member 122 is peeled off is defined by the rear edge portion of the drawing slit 170 of the cover member 122.
Therefore, the rear edge portion of the drawing slit 170 is
Functions as a peeling point regulating member. It can be considered that the peeling of the cover tape 98 is performed by moving the peeling point and the carrier tape 94 relatively. The cover member moving device is configured to include the drive bar 142, the drive lever 152, the cover member driving bar 156, and the like, and the cover member moving device serves as the relative movement generating device and the peeling point defining member retracting device. Function as. Further, in the tape feeder 50, the cover member 122, the cover member moving device, the cover tape winding device 126, and the like constitute a cover tape peeling device. Furthermore, the movable guide rollers 188, 1
It can be said that the cover tape feeding device is configured by including 90, the drive lever 152 and the like.

Next, the operation when the elevating member 140 moves up will be considered. The drive bar 142 has a drive lever 15
The tension coil spring 192 provided between the lower end of the cartridge 2 and the cartridge main body 120 causes the tension coil spring 192 to move up and down along with the lifting member 140. Also, the drive lever 1
By the rotation of 52, the cover member drive bar 154 and the rotation plate drive bar 156 are moved forward, the rotation plate 158 is rotated in the forward direction (counterclockwise in FIG. 3), and the ratchet wheel 162 and the ratchet wheel are also rotated. 162, a sprocket 19 that is connected so as to be relatively non-rotatable
4 is rotated and sprocket 194 has teeth 1
The carrier tape 94 with which 04 is engaged is fed together with the cover member 122 by a distance corresponding to the component holding pitch. At this time, the take-up lever 18 rotates as the drive lever 152 rotates.
Although 0 is rotated in the direction opposite to the winding direction, the take-up reel 186 does not rotate, the take-up reel 186 is stationary in the cover tape take-up device 126, and the cover tape 98 is taken up. Not done In addition, the movable guide roller 1
The cover tape 98 wound around 88 and 190 is fed out by the drive lever 152 as it is rotated upward, and the carrier tape 94, that is, the taped electronic component 90 corresponds to one pitch. Allow to be sent. Therefore, the movable guide rollers 188, 19
It can be said that the cover tape feeding device is configured to include 0, the drive lever 152, and the like. The operations of the tape-shaped electronic component 90 and the cover member 122 at this time are performed as shown in FIG. 4C through FIG. 4D.

Since the tape feeder 50 has the above-described structure, the carrier tape 94 is replaced by the electronic component 96.
And a cover tape for peeling the cover tape 98 from the carrier tape 94 while preventing a predetermined tension or more from being applied to the cover tape 98 and the carrier tape feeding device 124 that intermittently feeds for a length corresponding to the holding pitch of It includes a peeling device. Then, the cover tape peeling device does not peel the cover tape 98 by releasing the tension on the cover tape 98 during the feeding operation of the carrier tape feeding device 124, and when the feeding operation is not performed, the cover tape peeling device is applied to the cover tape 98. The cover tape 98 is peeled off by applying tension.

The tape-shaped electronic component 90 is fed by the carrier tape feeding device 124, and a large number of component accommodating recesses 92 are formed.
The first electronic component among the electronic components accommodated in is moved to a preset component extraction position. The component take-out position is a position located directly below the mounting head when the mounting head 30 of the mounting unit 32 is stopped by the component suction station. More specifically, the mounting head 30 has a component holding portion 34 at its lower portion, and the component holding portion 34 has a suction nozzle 210 at its lower end portion, and on the central axis of the suction nozzle 120. The position. A portion near the parts feeder 50 including the parts pick-up position is a parts feeder 52, and a large number of parts feeders 5 are provided.
No. 0 is attached to the feeder table 54 in a state where the component supply units 52 are aligned in the X-axis direction (see FIG. 1).

The cam of the motion converting mechanism that raises and lowers the raising and lowering member 140 serves as the mounting head 3 at the component suction station.
When 0 is lowered to hold the electronic component 96 by suction,
The elevating member 140 is lowered in parallel with the lowering of the mounting head 30. When the elevating member 140 descends and the drive bar 142 descends, the cover member 122 retracts,
The cover member 122 has a U-shaped opening at the front end on the front end side.
It has a V-shaped notch 212, and the tip of the suction nozzle 210 has the notch 21 before the cover member 122 is completely retracted.
It contacts the electronic component 96 through 2 (see FIG. 4B). At this time, the cover member 212 is still in a state of covering the upper portion of the electronic component 96 to be attracted, so that the rising of the electronic component 96 is effectively prevented. After the component suction nozzle 158 sucks the electronic component 96, the cover member 122 completes the retreat, and thus the electronic component 96 can be taken out (see FIG. 4C). In this state, the mounting head 30 is lifted, the electronic component 96 is taken out, the carrier tape 94 is sent together with the forward movement of the cover member 122, and the next electronic component 96 is positioned at the take-out position for standby. Works like.

<Component supply error due to operation of tape feeder> In the electronic component mounting system of the present embodiment,
There are various possible causes for the component supply error of the electronic component supply device 12, and among them, the component supply error due to the operation of the tape feeder will be considered. In the tape feeder, a component supply error occurs when the electronic component is not properly positioned at the component ejection position. As described above, the tape feeder 50 of the present embodiment has the carrier tape feeding device 124 and the cover tape peeling device, and when these devices do not operate accurately,
There is a high possibility that a component supply error will occur. In particular, there is a high possibility that a component supply error will occur due to defective peeling of the cover tape 98. An example thereof will be shown below with reference to FIG.

As described above, the cover tape 98 is taken up by the take-up reel 186 while being properly tensioned by the urging force of the tension coil spring 182.
More specifically, as the drive bar 142 descends, the drive lever 152 moves in the opposite direction to disengage the take-up lever engaging portion 220 of the drive lever 152 and the drive lever engaging portion 222 of the take-up lever 180. By rotating in the clockwise direction, the biasing force of the tension coil spring 182 works effectively, and the winding reel 186 is rotated in the winding direction. However,
When the operation speed of the tape feeder 50 is extremely high, that is, when the drive lever 152 swings extremely quickly, before the take-up lever 180 is rotated by the tension coil spring 182 by a sufficient amount, The drive lever 152 may return and prevent the winding lever 180 from rotating thereafter.

When the take-up lever 180 is not rotated sufficiently, the take-up amount of the cover tape 98 becomes insufficient. That is, the amount of cover tape peeling is too small. In such a case, the cover tape 98 sags. FIG. 5A schematically shows a state in which the cover tape 98 is slackened. From this state, when the drive bar 142 descends and the cover member 122 retracts, for example, as shown in FIG. 5B, between the front portion of the pull-out slit 170 of the cover member 122 and the carrier tape 94. , Cover tape 98
It is conceivable that they will bite. When such a biting of the cover tape 98 occurs, as shown in FIG. 5C, the electronic component 96 is covered with the cover tape even at the component take-out position, so that the suction nozzle 210 causes the electronic component 96 to move. Cannot be adsorbed, resulting in an adsorption error. In this case, the suction error will continue in the subsequent component removal.

The peeling failure of the cover tape exemplified above is
It occurs when the amount of peeling of the cover tape is too small. Therefore, by providing a device that detects that the amount of peeling of the cover tape 98 is too small, it is possible to obtain powerful information regarding the peeling failure. Therefore, the tape feeder 50 of the present embodiment includes the cover tape underwinding detection device 224 as one mode of the cover tape peeling insufficient detection device. This cover tape underwinding detection device is a detector, which is a photosensor 226 attached to a bracket 128 and functioning as a photoelectric switch, and a photosensor 24.
Winding lever 1 so as to be interposed between the light emitting part and the light receiving part of
80 and a detected member 228 as a detected piece formed integrally with the unit 80. When the cover tape is not sufficiently wound, the winding lever is not sufficiently rotated, and when the rotation amount is less than the set amount, the cover tape under-winding detection device 224 is used to cover the cover tape. It is detected that the amount taken is too small. That is, it is detected that the cover tape peeling amount is too small.

The peeling failure of the cover tape exemplified above is unlikely to occur in a normal state, but is likely to occur when there is some specific factor. The specific factor is, for example, a factor that causes the cover tape 98 to sag. Such a factor is likely to occur, for example, when a new taped electronic component 90 is set on the tape feeder 50, that is, when the taped electronic component is replaced. that is,
This is because the cover tape is processed by the operator, but it may be set by mistake or may be set in an improper state. Therefore, after the tape-shaped electronic component is replaced, it is time to easily make a component supply error, that is, it is necessary to be careful in supplying the electronic component. Further, the peeling failure of the cover tape exemplified above can be easily avoided by slowing the operation speed of the tape feeder 50, for example. That is, when the operation speed is slow, for example,
This is because the operation of the take-up lever 180 can sufficiently follow the operation of the drive lever 152, so that the cover tape 98 can be reliably taken up. If the operation speed is slow,
This is because it is possible to recover the once-reduced winding state of the cover tape. Therefore, slowing the operation speed of the tape feeder 50 is effective as a means for suppressing / preventing a component supply error. In addition, certification at the time of caution,
The functions of the supply error suppression / prevention measures at the time of caution are
Detailed description will be omitted here because it will be described later in detail.

<Control Device for Electronic Component Mounting System> FIG. 6
In addition, a block diagram of a system control device provided in the electronic component mounting system is shown focusing on a portion deeply related to the present invention. The system control device 70 includes a PU 250 and a ROM 25.
2. A computer 26 including a RAM 254, an input / output interface 256, and a bus 258 connecting them.
It is mainly 0. I / O interface 2
Reference numeral 56 denotes an X-axis motor 20 that drives an XY table device in the substrate holding device 16 that constitutes the electronic component mounting device 10.
And the Y-axis motor 22 have respective drive circuits 262,
It is connected via H.264. Further, the input / output interface 256 includes a mounting unit drive motor 3 that drives the mounting unit 32 that constitutes the electronic component mounting apparatus 10.
8 is connected via a drive circuit 266, and is located between the component pick-up station and the component mounting station, and is a component imaging camera (with a CCD camera) for capturing the attitude of the electronic component held by the mounting head 30. 268 (not shown above) is connected via an image processing unit 270. Further, the input / output interface 256 has a table moving motor 58 for driving the feeder table moving device 56 in the electronic component supply device 12.
Via the drive circuit 272, and the cover tape underwinding detection device 22 provided in each tape feeder 50.
4 are connected to the respective photosensors 226. Furthermore, the input / output interface 256 includes the input device 72, the display device 74, and the notification light 76 described above.
Are connected respectively.

The ROM 252 stores the basic operation program of the electronic component mounting system and the like, and the RAM 2
54, the type of the suction nozzle 210 currently used for each mounting head 30, including a mounting program of an electric circuit as a work target such as which electronic component is mounted in which position on a circuit board and in which order. Tape feeder 5
Various condition information such as electronic component type for each 0 and remaining amount of electronic component for each tape feeder 50 is stored. Then, the system control device 70 comprehensively controls the mounting work of the electronic circuit. In the present embodiment,
As described above, each tape feeder 50 is operated by the ascending / descending movement of the ascending / descending member 140 created by the motion converting mechanism using the mounting unit drive motor 38 disposed in the mounting unit 32 as a drive source. To be made. Therefore, in a broad sense, the electronic component supply device according to the present embodiment includes the mounting oil unit drive motor 38, the motion conversion mechanism, in addition to the tape feeder 50, the feeder table 54, the feeder table moving device 56, and the like.
The lifting / lowering member 140, the drive circuit 266 for the mounting unit drive motor 38, the part of the system control device 70 for controlling them, and the like are configured.

<Precautions and Supply Mistake Suppression / Prevention Means> In the present embodiment, the following cautions will be needed when a parts supply mistake has occurred or is highly likely to occur and caution is required for the parts supply. There are three times. One of them is a period starting from the time of replacement of the taped electronic component 90 with a new one (a caution period after component replacement). The other is a period starting from the point when the cover tape underwinding detection device 224 as the cover tape peeling underdetection device described above does not wind the cover tape 98 by the set amount. It is a caution period when the cover tape is peeled off too little. The other is that the electronic component held by the mounting head 30 is held by the component imaging camera 268 (only the suction nozzle 210 is imaged when the electronic component is not held). This is the period starting from the time of the determination (the caution period after the suction error) when it is determined that there is none or the holding posture is extremely bad. That is, it can be said that those caution periods are periods that are started when a predetermined start condition is satisfied.

In the present embodiment, since a plurality of tape feeders 50 are arranged in the electronic component supply device 12, the above three caution periods exist for each tape feeder,
Be certified as such. In the case of the caution period after parts replacement, the system controller 70 inputs the fact that the operator has replaced the taped electronic parts 90 together with the replaced tape feeder number, using the input device 72 described above. Get that information. In the case of the cover tape peeling under caution period and after the suction error caution period, the image processing unit 270 processes the signal from the cover tape underwinding detection device 224 or the image data of the component imaging camera 26. As a result, the system control device 70 obtains those pieces of information. Therefore,
The system control device 70 will have a part which acquires those information regarding the beginning of the caution period. The above information is information that means that there is a high possibility that a component supply error will occur in the tape feeder in the next electronic component supply, and is one type of supply error high possibility information. Therefore, the system control device 7 that acquires such information
The portion of 0 can be referred to as a supply error high possibility information acquisition unit. Further, the cover tape underwinding detection device 22
4. It can be said that the supply failure high possibility information acquisition device is configured to include the component imaging camera 268, the image processing unit 270, and the like.

The caution period is stored in the caution period management storage unit of the RAM 254 of the system controller 70 as data such as tape feeder number data and start period data of the caution period. At the end of the caution period, two modes with different termination requirements can be selected.
One is the "time mode" and the other is the "count mode". The time mode ends the caution period when the set time has elapsed from the start, and the "number of times mode" ends the caution period when the set number of parts have been supplied from the start. It is a thing. The input device 72 can be used to switch the mode and set the time or the number of times as the termination requirement. Specifically, for example, when the tape feeder 50 supplies the components n times, the caution period for the tape feeder 50 can be ended. In that case,
The requirement to end the caution period is that parts have been supplied n times. By the way, if you select the number mode,
In some cases, the electronic components are continuously supplied from the same tape feeder 50, and in other cases, the electronic components of the other tape feeder 50 may be interposed between the electronic components of the tape feeder 50. Depending on the tape feeder 50, the length of the caution period differs. The component supply count is stored while being updated in the component supply count counter section of the RAM 254, and is reset when the predetermined count is reached and the caution period ends. In the case of the time mode, it is possible not to set the end period, in which case the caution period is continued until the next setting work.

When the caution period is started, the supply error suppressing / preventing means functions for the tape feeder 50. Specifically, two means work. One of them is to turn on the above-mentioned notification light 76 to inform the operator that the caution period is required and to display the display device 7
In Fig. 4, the feeder number of the tape feeder 50 in the caution period and the cause of the caution period are displayed, and information about the tape feeder 50 is disclosed to the operator. In a situation where the caution period lasts for a long time, the operator can perform the work of eliminating the cause of the high possibility of supply error, and the work of mounting the electronic component can be smoothly performed. Therefore,
In the present embodiment, the notification light 76, the display device 74, the part of the system control device 70 that performs such control, and the like are included.
A caution notification device, which is a type of supply error suppression / prevention device, is configured.

Another means of suppressing and preventing supply errors is
During the caution period, the operation speed of the tape feeder 50 is slowed down. Specifically, when supplying the electronic components from the tape feeder 50 during the caution period, the elevating speed of the elevating member 140 for elevating is slowed. Since the elevating member 140 is driven by the mounting unit drive motor 38 via the motion conversion mechanism, the rotation speed of the mounting unit drive motor 38 may be slowed only at that time. When lowering the lifting member 140, the cover tape 98
Peeling operation is performed, and when the lifting member 140 is raised,
Since the feeding operation of the carrier tape 94 is performed, the operation of the corresponding tape feeder 50 can be delayed only by raising or lowering the elevating member 140 or by reducing the speed of both. The operation of slowing down the speed can be switched and selected by the input device 72. Therefore, in the present embodiment, the lifting member 14
0, the mounting unit drive motor 38, the motion conversion mechanism, the system control unit 70 including the part for performing the slowdown control,
An operation speed-reducing means is configured.

Furthermore, two modes can be selected for slowing down the operation of the tape feeder 50. One is the "constant speed mode" and the other is the "shift mode". In the constant speed mode, the tape feeder 50 operates at a constant speed during the caution period. On the other hand, in the shift mode, the operation speed gradually increases from the beginning of the caution period to the end thereof. FIG. 7 illustrates the operating state of the tape feeder in the above two modes. In FIG. 7, the horizontal axis indicates the passage of time. In any of the standard operation, the constant speed mode, and the speed change mode, the operation of the tape feeder 50 is shown assuming that the electronic components are continuously supplied from one tape feeder 50. The vertical axis H is the lifting member 1
40 is a rising end position, and L is a lowering end position of the elevating member 140. The elevating member 140 descends in one cycle, stops at the descending end, and then ascends to the ascending end.
That is, when the elevating member 140 is being lowered,
The peeling operation of the cover tape 98 described above is performed, and the lifting operation of the elevating member 140 is performed when the feeding operation of the carrier tape 94 is performed. In both the constant speed mode and the speed change mode, the caution period ends when the tape feeder 50 supplies the parts three times. In addition, the tape feeder 5
When no component is supplied from 0, for example, when component supply from another tape feeder 50 which is not certified as a caution period is interposed between component supply of the tape feeder 50, the tape relating to the intervening component supply The operation of the feeder 50 is performed at the standard operation speed by raising and lowering the elevating member 140 at the normal speed. In this case, the operation diagram shown in FIG. 7 has a blank corresponding to the time during which it is not operated between the cycles of the supply operation. Even in this case, the caution period for the tape feeder 50 does not end before the supply operation of the tape feeder 50 is completed three times.

The standard operation is a normal operation, and all operations related to the mounting work are performed at a speed as high as possible, and the tape feeder 50, more specifically, the carrier tape feeding device 1
24, and the cover tape peeling device including the cover tape winding device 126 is operated. In the constant speed mode, the tape feeder is operated at an operation speed corresponding to 50% of the operation speed in the standard operation in all the three cycles of the caution period. In other words, it is kept at a constant speed during the period. On the other hand, in the shift mode, the speed is gradually increased at the beginning of the caution period, that is, the first cycle is 50% speed, the second cycle is 76%, and the final third cycle is 83%. There is. The mode is selected from the input device 72. Further, as the operating speed in the constant speed mode and the initial operating speed in the speed change mode, a ratio value when the speed of the standard operation is 100% is input. The second and subsequent speeds in the shift mode are automatically determined in equal steps by proportional calculation based on the set number of times.

The slowing of the operation speed described above is performed for each tape feeder 50, and there is a difference in operation speed between the tape feeder 50 in the caution period and the tape feeder 50 not in the caution period. When the feed pitches of the taped electronic components 90 targeted by the two are the same, that is, between the tape feeders 50 targeted for the taped electronic components 90 having the same holding pitch of the electronic components 96, the operation speed difference is the supply speed. It will appear as a difference. As described above, since the slowing down of the operation speed is performed individually for each tape feeder 50, the supply error suppression / prevention means individual control device is configured including the part of the system control device 70 that controls as described above. Will be there.

<Variations> One embodiment of the present invention has been described above. However, the present invention is not limited to the above-mentioned embodiment, and in addition to the above-mentioned embodiment, the above-mentioned [Problems to be Solved by the Invention] , Problem Solving Means and Effects], and various modifications and improvements can be made based on the knowledge of those skilled in the art.

For example, the electronic component mounting system has a rotary head type mounting device, but instead of this, it is provided with a fixed electronic component supply device, and the mounting unit is an optional component feeder by an XY robot. The present invention can also be applied to an XY robot type electronic component mounting system that moves between the component supply unit and the mounting position of the circuit board.

Further, as described above, the tape feeder may be intended for square hole punch carrier tape type taping or the like, and instead of the tape feeder, it may be a component feeder of another type such as a bulk feeder. Also, the present invention can be applied. Further, in the above-described embodiment, the electronic component supply device is operated by the drive source of the mounting unit, but instead of this, as described above, the electronic component supply device has a drive source such as a motor in the component feeder itself. Also, the present invention can be applied. Furthermore, in the above-described embodiment, the tape feeder is of a type in which the feeding operation of the carrier tape and the peeling operation of the cover tape are performed at different times, but it is also possible for the tape feeder to perform both operations at the same time. The present invention can be applied. The present invention can thus be implemented in various modified modes.

[Brief description of drawings]

FIG. 1 shows an outline of an electronic component mounting system focusing on a portion closely related to the present invention.

FIG. 2 shows a taped electronic component to be supplied by a tape feeder included in an electronic component supply device that constitutes an electronic component mounting system.

FIG. 3 shows a main part of a tape feeder included in the electronic component supply device.

FIG. 4 is a schematic view showing the relationship of operation between the taped electronic component and the cover member.

FIG. 5 schematically shows an example of a component supply error caused by defective peeling of a cover tape.

FIG. 6 is a block diagram of a system control device included in the electronic component mounting system, focusing on a part closely related to the present invention.

FIG. 7 illustrates an operating state of a slowed tape feeder.

[Explanation of symbols]

10: Electronic component mounting device (electrical component mounting device) 12:
Electronic component supply device (electric component supply device) 14: circuit board 16: substrate holding device 30: mounting head 32: mounting unit 38: mounting unit drive motor
50: Tape Feeder (Parts Feeder) 52: Parts Feeder 54: Feeder Table 56: Feeder Table Moving Device 70: System Control Device 72: Input Device 74: Display Device 76: Notification Light 90: Taped Electronic Parts (Taped Electric) Parts) 92: recess for housing parts 94: carrier tape
96: Electronic parts (electric parts) 98: Cover tape 1
22: Cover member 124: Carrier tape feeding device
126: Cover tape winding device (part of cover tape peeling device) 140: Lifting member 142: Drive bar 15
2: Drive lever 170: Pull-out slit 180: Take-up lever 186: Take-up reel 188, 190: Movable guide roller 210: Suction nozzle 224: Cover tape under-winding detection device (cover tape peeling under-detection device)

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Daisuke Terauchi             Fuji Machinery, 19 Chasuyama, Yamamachi, Chiryu City, Aichi Prefecture             Manufacturing Co., Ltd. F-term (reference) 5E313 AA03 AA18 AA21 CD03 DD21                       DD34 DD41 DD49 DD50

Claims (8)

[Claims] 1. An electric component supply device including a component feeder for supplying an electric component at a prescribed component supply unit, wherein a component supply error has occurred or is highly likely to occur, and attention must be paid to the component supply. An electrical component supply device comprising a supply error suppression / prevention means for suppressing or preventing the component supply error at the time of caution. 2. The electric component supply apparatus according to claim 1, wherein the supply error suppressing / preventing means includes an operation speed reducing means for decreasing an operation speed of the component feeder. 3. The component feeder comprises a plurality of electric components, a carrier tape in which the plurality of electric components are aligned and held in a longitudinal direction, and a cover tape which covers the plurality of electric components and is attached to the carrier tape. The electrical component supply device according to claim 1 or 2, wherein the electrical components are supplied one by one from the taped electrical components including the. 4. The electric component supply apparatus according to claim 3, wherein the caution time includes a period of a set length from the time of replacement of the taped electric component. 5. A supply error suppression / prevention means individual control device which includes a plurality of said component feeders and causes said supply error suppression / prevention means to individually function when each of said component feeders needs attention. The electric component supply device according to claim 4. 6. An electrical component including the electrical component supply device according to claim 1, and an electrical component mounting device for mounting an electrical component supplied from the electrical component supply device on a circuit board. Mounting system. 7. A method of supplying an electric component using a component feeder for supplying an electric component in a prescribed component supply unit, wherein a component supply error has occurred or is highly likely to occur, and attention should be paid to the component supply. An electric component supplying method characterized in that, when necessary caution is required, the operation speed of the component feeder is reduced to supply electric components. 8. A method of supplying an electric component using an electric component supply device in which a plurality of component feeders for supplying electric components in a predetermined component supply unit are provided, wherein the component supply in each of the component feeders is performed. When an error has occurred or is likely to occur and caution is required for component supply, the operating speed of each individual component feeder is slowed to supply the electrical component. Supply method.