JP2000077892A - Tape feeder and surface mounting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To forward a tape more properly in a tape feeder successively supplying the specified place of the extraction of parts with the parts while using the tape as a carrier. SOLUTION: The tape feeder 4a is constituted so that parts are held under the state in which the parts can be extracted, while drawing out a tape 33 in which the parts are housed, to a part extracting section 35 by a tape feed mechanism 39. In the tape feed mechanism 39, a sprocket 40 is rotated by driving a motor 41, and the sprocket 40 is engaged with engaging holes formed to the tape 33 at regular intervals. An engaging-hole detector 47 for detecting the engaging holes of the tape 33 is installed, the places of the engaging holes are recognized based on the detection result of the engaging holes of the tape 33, and a feeder controller for feedback-controlling the motor 41 so that the engaging holes are kept within the predetermined range of proper places, where the places of the recognition are preset while whether or not the places of the recognition are kept within the predetermined range of the proper places is investigated, is mounted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape feeder for sequentially supplying components to a predetermined component pick-up position using a tape as a carrier for mounting components on a substrate, and a surface mounter provided with the tape feeder. .

[0002]

2. Description of the Related Art Conventionally, there is generally known a tape feeder in which an electronic component is sent to a predetermined component pick-up position using a tape as a carrier and picked up by a component suction nozzle.

A tape feeder is composed of a tape main body and a cover tape, and holds a tape containing a large number of components at regular intervals and wound around a reel. The component is guided to the component take-out section, and the component take-out section is configured to be able to take out the component by peeling off the cover tape from the tape body. Each time a component is picked up by a nozzle provided in the head unit of the surface mounter, a tape is intermittently fed by a feed mechanism, and components are sequentially taken out by a component take-out unit. I have.

Conventionally, as the above-mentioned feed mechanism, a sprocket connected to a ratchet rotating mechanism is engaged with a tape, and the ratchet rotating mechanism is actuated in accordance with the vertical movement of a nozzle member or the like for picking up a component, thereby moving the sprocket. The mainstream method is to feed the tape mechanically by rotating it. However, there are many requests to adjust the tape feeding speed and the like according to the type of parts, and in recent years, a method of feeding the tape by rotating a sprocket by driving a motor has been adopted to meet such a request. .

[0005]

In a tape feeder for feeding a tape by driving a motor as described above, it is necessary to adjust the feed amount by controlling the driving of the motor. Providing small holes at regular intervals in the peripheral part and providing a sensor that can detect these small holes, detecting the number of small holes with the sensor as the sprocket rotates, and calculating the tape feed amount from this and the number of rotations of the motor To adjust the feed amount.

However, when the tape feed amount is adjusted in this manner, if the processing accuracy relating to the roundness or eccentricity of the sprocket is low, the tape feed amount cannot be correctly adjusted even if the drive of the motor is controlled. In some cases,
There has been a problem that high processing accuracy is required for the sprocket, in other words, the accuracy of the tape feed amount depends on the processing accuracy of the sprocket.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide a tape feeder capable of more appropriately feeding a tape, and to provide a surface mounter provided with the tape feeder. The purpose is.

[0008]

In order to solve the above-mentioned problems, the present invention relates to a tape which is formed by engaging a sprocket with an engagement hole formed at a predetermined interval in a tape, and rotating the sprocket by driving a motor. Means for recognizing the position of the engagement hole of the tape sent out to the component take-out section, and driving the motor based on the recognition result of the engagement hole by the recognition means. And a control means for performing feedback control on (1).

According to this feeder, by recognizing the position of the engagement hole formed in the tape, the drive of the motor is controlled while directly recognizing the position of the tape itself. Therefore, compared with the conventional feeder which controls the motor based on the detection of the small hole of the sprocket, it is possible to accurately recognize the excess or deficiency of the tape feed amount, and thus to feed the tape accurately.

In the above-mentioned feeder, the recognizing means includes, for example, a light projecting portion and a light receiving portion which are arranged opposite to each other with a tape interposed therebetween, and the position of the light received by the light receiving portion via the engaging hole. It is configured to recognize the position of the engagement hole on the basis of (2).

With this configuration, the position of the engagement hole can be recognized with a simple structure and without contact. In particular,
If the image sensor is arranged so that the position of the engaging hole can be recognized two-dimensionally and the light receiving portion is constituted (claim 3), if only the position of the engaging hole in the tape feeding direction is satisfied, In addition, it is possible to recognize the position and the like of the engagement hole in the direction orthogonal to the feed direction.

Further, the present invention is a surface mounter provided with the above-mentioned tape feeder, wherein the head unit is capable of taking out a component from a component take-out part of the above-mentioned tape feeder; A head drive control means for controlling the drive means so as to correct the position at which the head unit picks up the component from the tape feeder based on the recognition result of the position of the engagement hole by the recognition means. Item 4).

[0013] According to this apparatus, the head unit is moved to a position taking into account the displacement of the component at the component pick-up section due to the excess or deficiency of the tape feed amount in the tape feeder or the displacement in the direction perpendicular to the tape feed direction. Since the component can be moved and sucked, it is possible to more accurately take out the component from the tape feeder.

According to the present invention, there is provided a surface having a tape feeder in which a sprocket is engaged with an engagement hole formed at a predetermined interval in the tape, and the tape is fed to a component pick-up portion by rotating the sprocket. A mounting machine, a recognizing means capable of recognizing a position of an engaging hole of a tape fed to a component pick-up unit, a movable head unit for picking up a component from a component pick-up unit of a tape feeder, A drive unit; and a head drive control unit for controlling the drive unit so as to correct the position of taking out the component from the tape feeder by the head unit based on the recognition result of the position of the engagement hole by the recognition unit. (Claim 5).

[0015] According to this apparatus, the head unit is moved to a position that takes into account the displacement of the tape at the component pick-up section caused by the excess or deficiency of the tape feed amount in the tape feeder or the displacement in the direction perpendicular to the tape feed direction. Since the component can be moved and sucked, the component can be accurately taken out from the tape feeder.

[0016]

Embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 and 2 schematically show the entire surface mounting machine (hereinafter abbreviated as mounting machine) according to an embodiment of the present invention. In this figure, a conveyor 2 constituting a transport line is arranged on a base 1, and a printed circuit board 3 is transported on the conveyor 2 and stopped at a predetermined mounting work position.

At the side of the conveyor 2, a component supply unit 4
Is arranged. The component supply unit 4 includes a plurality of rows of tape feeders 4a.
a will be described later in detail, but an IC, a transistor,
The tape holding and holding small chip-shaped chip components such as capacitors at predetermined intervals is configured to be led out from a reel, and a tape feeding end is provided with a feeding mechanism. As the tape is picked up, the tape is intermittently fed.

Above the base 1, a head unit 5 for mounting components is provided.
Can move in the X-axis direction (the direction of the conveyor 2) and the Y-axis direction (the direction orthogonal to the X axis on a horizontal plane).

That is, a pair of fixed rails 7 extending in the Y-axis direction and a ball screw shaft 8 driven to rotate by a Y-axis servomotor 9 are disposed on the base 1. A head unit support member 11 is disposed on the support member 11, and a nut portion 12 provided on the support member 11 is screwed to the ball screw shaft 8. The support member 11 is provided with a guide member 13 extending in the X-axis direction and a ball screw shaft 14 driven by the X-axis servomotor 10 so that the head unit 5 can move on the guide member 13. A nut portion (not shown) provided in the head unit 5 is screwed to the ball screw shaft 14. The operation of the Y-axis servomotor 9 rotates the ball screw shaft 8 to move the support member 11 in the Y-axis direction, and the operation of the X-axis servomotor 10 rotates the ball screw shaft 14 to rotate the head unit 5. Move in the X-axis direction with respect to the support member 11.

The head unit 5 is provided with a suction head 20 for sucking a component.
The suction heads 20 are arranged side by side in the X-axis direction.

Each of the heads 20 can move up and down and rotate with respect to the frame of the head unit 5, respectively, and a lifting drive unit and a R-axis servo motor that use a Z-axis servo motor 15 (shown in FIG. 8) as a drive source. 16 (shown in FIG. 8)
Is driven by a rotary drive unit having the as a drive source. At the lower end of each of the heads 20, a nozzle 21 for picking up a component is provided. At the time of picking up a component, a negative pressure is applied to the nozzle 21 from a negative pressure supply means (not shown) via an electromagnetic valve 17 (shown in FIG. 8). Is supplied, and the component is sucked by the suction force of the negative pressure.

FIG. 3 shows the structure of the tape feeder 4a. As shown in FIG.
a includes a main body 30 on the front side (the right side in the figure) having a component take-out section 35 and a reel holding section 31 on the rear side.
The reel holding section 31 holds a tape 33 containing a large number of components wound around a reel 32.

The tape feeder 4a is provided on the base 1 of the mounting machine via the main body 30.
2 is detachably attached.

More specifically, the feeder setting table 2
Reference numeral 2 denotes a support base 22a and a fixed base 22b erected in front of the support base 22a (right side in the figure).
A large number of mounting portions for mounting a are provided side by side in the Y-axis direction (a direction orthogonal to the paper surface in FIG. 3).
In each mounting portion, a V-shaped groove 23 for positioning is formed on the surface of the support base 22a (see FIG. 4), and a shaft 24 for clamping is formed corresponding to the portion where the groove 23 is formed. Are provided, while a positioning hole 25 is provided in the fixed base 22b. Then, as shown in FIG. 4, the main body 30 of the tape feeder 4a is placed on the support base 22a with the main body 30 of the tape feeder 4a interposed in the groove 23 via a projection 30a having a semicircular cross section formed on the lower surface of the main body 30. The tape feeder 4a is positioned in the mounting portion by inserting the pin 30b protruding from the tip of the main body 30 into the positioning hole 25, and in this state, the main body 3
The tape feeder 4a is mounted and fixed to the feeder installation base 22 by setting the clamp 26 provided at the lower part of the shaft 0 on the shaft 24.

In front of the main body 30, a component take-out portion 35 is provided.
Is provided, and a tape 33 derived from the reel 32 is provided.
Is guided to the component take-out portion 35 via tape guide members 36 and 37 at the rear of the main body. Further, a tape feed mechanism 39, a cover tape take-off mechanism 42,
The main body 30 is provided with an engagement hole detector 47, a guide portion 46 for discharging the tape main body, and the like.

The tape 33 derived from the reel 32
Is composed of a tape main body 33a and a cover tape 33b, as shown in FIGS. In the tape main body 33a, a large number of component storage portions 33c that are open at the top are provided at regular intervals, and a component P is stored in each of the component storage portions 33c.
Further, a number of engagement holes 33d are arranged at regular intervals on the side of the tape body 33a. The cover tape 33b is provided with a tape 33 so as to close the component storage portions 33c of the tape body 33a from above.
It is adhered to the upper surface of. Then, the cover tape 33b is peeled off from the tape main body 33a in the component take-out section 35, so that the component P can be taken out, and the component P is sucked and taken out by the component suction nozzle 21 mounted on the mounting machine. Then, the tape 33 is fed out by a fixed amount by the tape feeding mechanism 39.

The tape feed mechanism 39 includes a component take-out unit 35
, A feed motor 41 for rotating the sprocket 40, a bevel gear (not shown) for transmission, and the like. The sprocket 40 is disposed so as to engage with the engaging hole 33d of the tape 33 guided to the component take-out portion 35, and the sprocket 40 is rotated by the driving of the motor 41 so that the tape 33 is rotated. It is designed to be sent out.

An engagement hole detector 47 for recognizing the position of the engagement hole 33d of the tape 33 is provided near the tape feeding mechanism 39, specifically, at the end of the tape guide member 37.
Are arranged. As shown in FIG. 7, the engagement hole detector 47 has a light projecting portion 47a and a light receiving portion 47b across a path of the tape 33 by the tape guide member 37.
The light transmitted through the engagement hole 33d of the tape 33 is received by the light receiving portion 47a.
The feeder controller 5 to be described later
At 6, the position of the engagement hole 33d is recognized. That is, the recognition means of the present invention is constituted by the engagement hole detector 47, the feeder controller 56, and the like.

The light receiving section 47a is, for example, CC
The feeder controller 56 two-dimensionally obtains the position of the engagement hole 33d based on the light receiving position of the light receiving unit 47a.

In the part take-out section 35, the tape main body 33a
The cover tape 33b separated from the tape main body is taken up by a tape cover take-up mechanism 42 (hereinafter, abbreviated as the take-up mechanism 42) and sent to a processing case (not shown). The cover tape 33b is peeled off from the cover tape 33a.

As shown in FIG. 3, the take-up mechanism 42 is provided at a lower rear portion of the main body 30 and includes a pair of rollers 43 which are pressed against each other and are driven to rotate by a take-up motor 44. Then, the cover tape 33b pulled out from the component take-out part 35 is guided between the roller pair 43 via the guide roller 45 and the like. Thus, when the motor 44 is driven, the roller pair 43 rotates and the cover tape 33b is taken off.

FIGS. 5 and 6 show the structure of the component take-out section 35. FIG. In these figures, the component take-out unit 35
Is provided with a tape guide groove 50 that opens upward in the upper part of the main body 30 and a cover member 51 that is provided above the tape guide groove 50. The tape guide groove 50 is led out from the reel 32 and led to the component take-out part 35. The tape 33 moves under the cover member 51 along the tape guide groove 50.

The cover member 51 is formed with an opening 52 for taking out components at the center thereof, and a cover tape 33b is formed at the rear end (left end in FIGS. 5 and 6) of the opening 52. Is folded back and peeled off. When the component storage portion 33c of the tape main body 33a reaches the position of the opening 52 while the cover tape 33b is peeled off, the component storage portion 33c is opened upward, and the component P can be taken out by the nozzle 21. It has become.

A tape main body discharge guide 46 connected to the tape guide groove 50 is provided at the tip end of the main body 30. The used tape main body 33a passing through the component take-out part 35 is used to discharge the tape. It is guided to the lower rear part of the main body 30 via the guide part 46, and is sent to a processing case (not shown) together with the cover tape 33b picked up by the picking-up mechanism 44.

In FIG. 3, reference numeral 53 denotes the main body 3.
Feeder controller 5 for controlling the operation of the tape feeder 4a by a control box disposed at the upper rear of the
Various control devices such as 6 are housed therein. These control devices are connected to a connector 54 attached to a lower front part of the main body 30 via a harness (not shown). As shown in the figure, when the tape feeder 4a is set on the feeder installation base 22, the connector 54 is connected to the connection board 22c attached to the feeder installation base 22, thereby the connector 54 Each control device is electrically connected to a control device such as a later-described main body controller 55 on the mounting machine main body side via the connector 54 and the connection board 22c.

FIG. 8 shows a control system of the mounting machine. As shown in this figure, the main body side of the mounting machine has a main body controller 55 for controlling the mounting operation in a comprehensive manner, and the X-axis, Y-axis, Z-axis and R-axis servo motors 9, 10, 15, 16 and the electromagnetic valve 17 are connected to the controller 55.

Further, a feeder controller 56 for controlling a component feeding operation is mounted for each tape feeder 4a, and the engagement hole detector 47, the feed motor 41, the take-up motor 44, or an operation display. LED
57 are connected to the controller 56, and the feeder controllers 56 of the tape feeders 4a are connected to the main controller 55, respectively. FIG. 2 shows only a control system for one tape feeder 4a.

At the time of mounting, the operation of the head unit 5 and the like are performed by the main controller 5 in order to mount predetermined components on the printed circuit board 3 in accordance with a program stored in advance.
5 and each tape feeder 4a
Are controlled by the respective feeder controllers 56.

In particular, in the component feeding operation by the tape feeder 4a, the position of the engaging hole 33d is recognized by the feeder controller 56 based on the detection of the engaging hole 33d of the tape 33 by the engaging hole detector 47. While checking whether or not this recognition position is within a predetermined range of a preset proper position (proper position in the tape feed direction (Y-axis direction)), the engagement hole 33 is set within this range.
The drive of the feed motor 41 is feedback-controlled so that d is positioned. That is, the tape 33
Since both the component storage portion 33c and the engagement hole 33d are formed regularly, the engagement at the detection position by the engagement hole detector 47 when the component storage portion 33c is at the appropriate position of the component extraction portion 35 If the position (appropriate position) of the hole 33d is stored, the deviation between this position and the actual position of the engaging hole 33d becomes an excess or deficiency of the feed amount of the tape 33. Therefore,
The feed amount of the tape 33 is adjusted while checking this shift. As described above, the feeder controller 56 has both functions as the recognition unit and the control unit of the present invention.

On the other hand, in the operation of taking out components from the tape feeder 4a by the head unit 5, based on recognition of the position of the engagement hole 33d, the main controller 5 is operated.
In 5, the shift amount of the tape 33 in the X-axis direction (the direction orthogonal to the tape feed direction) in the component pick-up unit 35 is obtained, and the target position of the head unit 5 at the time of component pick-up is corrected based on these shift amounts. Thus, the operation of the head unit 5 is controlled. That is,
The position of the tape 33 in the X-axis direction is
Since the sprocket 40 engages and is restrained by 3d, there is no large deviation, but generally, the diameter of the engaging hole 33d is slightly larger than the diameter of the teeth of the sprocket 40. Has some play. Therefore, the tape 33 may be displaced in the X-axis direction by this play, so that the target position of the head unit 5 is corrected in consideration of the displacement of the component P caused by the displacement. Thus, the head drive control means of the present invention is constituted by the main body controller 55.

Next, the mounting operation in the mounting machine will be described with reference to the flowchart of FIG. In the following description, steps S1 to S6 are operations on the mounting machine body side, and steps S11 to S16 are operations of the tape feeder 4a.

In the mounting operation, first, the main controller 5
5 sends a tape feed command to the tape feeder 4a that supplies the target component (step S1).

When the above command is received by the feeder controller 56, the operation of feeding the tape 33 is started to arrange the components at the component pick-up position of the component pick-up unit 35 (steps S11 and S12). Specifically, the feed mechanism 39 is driven to feed the tape 33 along the tape guide groove 50, while the take-up mechanism 42 is driven to take out the cover tape 33b.

In the feeding operation, the position of the engaging hole 33d is recognized (calculated) by the feeder controller 56 based on the detection of the engaging hole 33d by the sensor 47, and the recognized position is set to a predetermined appropriate position. It is checked whether or not it is within the range, and the drive of the feed motor 41 is feedback-controlled so that the engagement hole 33d is located within this range (steps S13 and S14).

When the position of the engaging hole 33d falls within the predetermined range of the proper position, the operation of feeding the tape 33 is stopped, and the position of the engaging hole 33d at this time is obtained and transmitted to the main controller 55 ( Step S16).

On the main body side of the mounting machine, the amount of displacement of the tape 33 in the X-axis direction is obtained based on the information on the position of the engagement hole 33d transmitted from the feeder controller 56, and the position is determined in consideration of the amount of displacement. The target position of the head unit 5 at the time of component removal is corrected (step S3).

Then, the head unit 5 is moved to the corrected target position and the component P is moved from the tape feeder 4a.
After the components are sucked, the head unit 5 is moved to a predetermined position on the printed board 3 to mount the components P on the printed board 3 (steps S4 to S6).

Thereafter, by repeating the above-mentioned operation, the components P are mounted on the printed circuit board 3 while taking out the components P from the respective tape feeders 4a.

As described above, in the above mounting machine,
Regarding the feeding operation of the tape 33 by the tape feeder 4a, by recognizing the position of the engaging hole 33d,
Since the feed motor 41 is feedback-controlled while directly checking whether the feed amount of the tape 33 itself is excessive or insufficient, the error of the feed amount of the tape 33 is extremely small, and the components P stored in the tape 33 are transferred to the component take-out unit 35. The tape 3 can be reliably fed to a predetermined position, and the tape 3 can be moved with the accuracy of the sprocket processing like a conventional device of this type.
The accuracy of the delivery of No. 3 is not affected.

Further, in the above-described mounting machine, when the feeding operation of the tape 33 is completed, information on the position of the engaging hole 33d is transferred to the main body controller 55, and the component is determined based on the displacement of the engaging hole 33d from the proper position. Since the target position of the head unit 5 at the time of taking out is corrected,
The nozzle 21 can be arranged at a position where the component P can be reliably sucked. Therefore, according to the mounting machine described above, it is possible to greatly reduce the suction error of the component P by the nozzle 21.

The mounting machine of the above embodiment is an example of the mounting machine according to the present invention, and the specific configurations of the tape feeder 4a and the mounting machine main body can be changed as appropriate without departing from the gist of the present invention. It is.

For example, in the above-described mounting machine, when the feeding operation of the tape 33 is completed, information on the position of the engaging hole 33d is transferred to the main controller 55 to correct the target position of the head unit 5. However, it is not always necessary to correct the target position of the head unit 5 based on the position of the engagement hole 33d, and such control can be omitted. However, it is desirable to correct the target position of the head unit 5 based on the position of the engagement hole 33d from the viewpoint of disposing the nozzle 21 at a position where the component P can be reliably sucked. In this case, in the above embodiment, the engagement hole 3
Although the target position is corrected based on only the 3d shift in the X-axis direction, the target position may be corrected in consideration of the shift in the Y-axis direction. That is, in the above embodiment, the feed amount of the tape 33 is controlled while checking whether or not the position of the engagement hole 33d in the tape feed direction (Y-axis direction) is within a predetermined range of an appropriate position. It is also conceivable that the position of the engagement hole 33d in the Y-axis direction is slightly shifted from the proper position. Therefore, such an engagement hole 33d
If the target position of the head unit 5 is corrected in consideration of the deviation in the Y-axis direction, the nozzle 21 can be arranged at a position where the component P can be sucked more reliably.

In the tape feeder 4a, the two-dimensional sensor is used as the light receiving portion 47b of the engagement hole detector 47 to check the displacement of the engagement hole 33d in the X-axis direction. In the tape feeder 4a or the like in which the position of the tape 33 in the X-axis direction is reliably restrained, there is no need to check the displacement of the tape 33 in the X-axis direction. Therefore, a line sensor (one-dimensional sensor) in the Y-axis direction is used as the light receiving unit 47b. It may be used.

Further, in the above embodiment, the sprocket is rotated by the drive of the feed motor 41 so that the tape 33 is rotated.
Is applied. For example, a mechanically driven tape feeder 4a that rotates a sprocket by operating a ratchet rotation mechanism in accordance with the vertical movement of the nozzle 21 is applied, and the tape feeder 4a is used. May be provided with an engagement hole detector 47.
In this case, since the feed amount of the tape 33 is fixed by the ratchet rotation mechanism, the detection result of the engagement hole 33d by the engagement hole detector 47 is output to the main body controller 55, and the proper position and the engagement hole are determined. The target position of the head unit 5 at the time of component removal may be corrected based on the deviation from the target 33d. According to such a configuration, even when the feed amount of the tape 33 is excessive or insufficient in the tape feeder 4a, the components can be appropriately taken out by the nozzle 21.

[0056]

As described above, the present invention relates to a tape feeder in which a sprocket is engaged with an engagement hole formed at a predetermined interval in a tape, and the tape is sent out with the rotation of the sprocket driven by a motor. Recognizing the position of the engagement hole of the tape by the recognition means, based on this position to feedback control the drive of the motor,
That is, since the motor is controlled while directly monitoring the feed amount of the tape itself, the error in the tape feed amount is extremely small, and the parts stored in the tape can be reliably sent to the predetermined position of the component pick-up part. Can, and
Unlike the conventional apparatus of this type, the precision of feeding the tape is not affected by the processing accuracy of the sprocket.

According to the present invention, there is also provided a surface mounter provided with the above-mentioned tape feeder. Since the drive unit is controlled, the head unit is positioned at a position that takes into account the deviation of the tape at the component feeder due to the excess or deficiency of the tape feed amount in the tape feeder or the deviation in the direction perpendicular to the tape feed direction. Can be moved to take out parts. For this reason, it is possible to more accurately take out the component from the tape feeder, and it is possible to greatly reduce a component taking error.

Further, the present invention provides a surface mounter provided with a tape feeder for engaging a sprocket with an engagement hole formed in a tape and rotating the sprocket to feed the tape to a component pick-up portion. Recognizing means capable of recognizing the position of the engagement hole of the tape sent to the component pick-up unit, and a movable head unit for picking up a component from the tape feeder,
A drive unit for the head unit, and a head drive control unit for controlling the drive unit to correct a position of removing the component from the tape feeder by the head unit based on a recognition result of the position of the engaging hole by the recognition unit. Therefore, for example, even when using a conventional type tape feeder that rotates a sprocket by operating a ratchet rotation mechanism in accordance with the up and down movement of a component suction nozzle as a tape feeder, even if a tape feeder is used, Parts can be taken out accurately, and mistakes in taking out parts can be greatly reduced.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing a surface mounter according to the present invention.

FIG. 2 is a schematic front view showing a surface mounter according to the present invention.

FIG. 3 is a schematic side view showing a tape feeder.

FIG. 4 is a cross-sectional view taken along the line AA of FIG. 3 for explaining a mounting structure of the tape feeder to the feeder installation table.

FIG. 5 is a plan view showing a component take-out part of the tape feeder.

FIG. 6 is a cross-sectional view showing a component take-out part of the tape feeder.

FIG. 7 is a conceptual diagram illustrating an engagement hole detector.

FIG. 8 is a diagram showing a control system of the surface mounter.

FIG. 9 is a flowchart of a mounting operation.

[Explanation of symbols]

 4a Tape feeder 30 Main body 31 Reel holding part 32 Reel 33 Tape 33a Tape main body 33b Cover tape 33c Parts storage part 33d Engagement hole 35 Parts take-out part 39 Tape feed mechanism 40 Sprocket 41 Feed motor 42 Cover tape pull-out mechanism 43 Roller pair 44 Pickup motor P parts

 ──────────────────────────────────────────────────続 き Continued on front page (72) Inventor Masahiro Akahori 2500 Shinkai, Iwata City, Shizuoka Prefecture Inside Yamaha Motor Co., Ltd. (72) Inventor Osamu Araki 2500 Shinkai, Iwata City, Shizuoka Prefecture Yamaha Motor Co., Ltd. Reference) 3F027 AA02 CA01 DA02 FA12 5E313 AA02 AA11 AA18 CC03 CC04 CD03 DD01 DD02 DD03 DD12 DD34 DD35 EE24 EE25

Claims (5)

[Claims] 1. A tape feeder, wherein a sprocket is engaged with an engagement hole formed at a predetermined interval in a tape, and the sprocket is rotated by a motor to feed the tape to a component pick-up unit. Recognition means capable of recognizing the position of the engagement hole of the tape sent to the section, and control means for performing feedback control of driving of the motor based on the recognition result of the engagement hole by the recognition means. Tape feeder characterized by the following. 2. The apparatus according to claim 1, wherein the recognition unit includes a light-emitting unit and a light-receiving unit disposed opposite to each other with the tape interposed therebetween, and based on a position of light received by the light-receiving unit through an engagement hole. 2. The tape feeder according to claim 1, wherein the position of the engagement hole is recognized by using the tape feeder. 3. The tape feeder according to claim 1, wherein the light receiving section is provided with an image sensor so that the position of the engagement hole can be recognized two-dimensionally. 4. A surface mounter provided with the tape feeder according to claim 1, wherein the head unit is capable of taking out a component from a component take-out part of the tape feeder, and a driving unit of the head unit. And head drive control means for controlling the drive means in order to correct the position at which the head unit removes components from the tape feeder based on the recognition result of the position of the engagement hole by the recognition means. Characterized surface mounting machine. 5. A surface mounter equipped with a tape feeder having a tape feeder for engaging a sprocket in an engagement hole formed at a predetermined interval in the tape and rotating the sprocket to feed the tape to a component take-out part. So,
Recognition means capable of recognizing the position of the engagement hole of the tape to be sent to the component pick-up unit, a movable head unit for picking up a component from the component pick-up unit of the tape feeder, and a driving unit for the head unit; A head drive control means for controlling the drive means to correct a component take-out position from the tape feeder by the head unit based on a recognition result of the position of the engagement hole by the recognition means. Surface mounter.