JP2003332789A - Method and apparatus for feeding component - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a method and an apparatus for feeding components provided with a convenient means for detecting the coupling part of a carrier tape for feeding the components to the component mounting apparatus. <P>SOLUTION: In the vicinity of the coupling part 20 of the carrier tape 21, a part for identifying the coupling part, 20, e.g. a cutting part 51, a protruding part 61, a bending part 62, a matting part or a bright part 95, is provided and detected by means of various sensors 50. The identifying part can be formed using a coupler 40 for coupling the carrier tapes 21 each other or a cutter 110 for cutting the carrier tapes 21 before being coupled without requiring any extra process. Alternatively, coupling of the carrier tapes 21 can be known by detecting the operation for replacing a reel 26 around which the carrier tape 21 is rolled. Replacement of the reel 26 can be detected readily by detecting the movement of a reel holder 72 rotatable or movable while holding the reel 26. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component supply method and a component supply device for supplying a component to a component mounting apparatus for mounting electronic components on a circuit formed body. More specifically, the present invention relates to a component supply method and a component supply device that include a detection procedure for detecting a connecting portion when connecting carrier tapes in which a large number of components are arranged and housed at regular intervals.

[0002]

2. Description of the Related Art Component mounting and component supply in the prior art will be described with reference to the drawings. First, FIG. 13 shows an outline of the component mounting apparatus. In the figure, the component mounting apparatus 1
Represents the components supplied by the component supply device 11 in XY
The robot is taken out by the mounting nozzle 13 mounted on the mounting head 3 conveyed by the robot 4, and mounted on the mounting position of the circuit-formed body 18 such as the electronic circuit board that is trained and held. In the process, the component held by the mounting nozzle 13 is recognized by the recognition device 5, and it is determined whether or not the component is a predetermined component. If it is a predetermined component, it is mounted as it is, but if it is determined that it is not the predetermined component, a necessary warning is issued. The overall operation of the component mounting and mounting apparatus 1 described above is controlled by the control device 7.

FIG. 14 shows an enlarged view of the component supply device 11 mounted on the component mounting device 1 shown in FIG. In FIG. 14, a component supply device (hereinafter, referred to as a “parts cassette”) 11 is provided with a reel 26 around which a carrier tape 21 having a large number of components continuously stored at regular intervals is wound. The carrier tape 21 pulled out from the reel 26 is transported in the Y direction by the counterclockwise intermittent rotation of the drive wheel 33 arranged at the left end of the parts cassette 11 in the Y direction in the drawing. Meanwhile, the carrier tape 21
The top tape 24 that covers and protects the components stored in the above is peeled off, and the top tape 24 is wound around the recovery reel 34. The uncovered parts are successively conveyed to the part taking-out position 32. This part take-out position 3
The mounting nozzle 13 of the component mounting apparatus 1 (not shown) that has moved to 2 descends to come into contact with the component, picks it up by suction, and conveys it to the mounting position of the circuit forming body 18.

Various types of drive sources for the drive wheel 33 and the recovery reel 34 are used. In the example shown in FIG. 14, the lever 31 is pushed down from the component mounting device side, and this is pushed down using a link mechanism. The force is used as the driving force for both.

FIG. 15 shows details of the reel 26 mounted on the parts cassette 11 shown in FIG. Reel 26
Is composed of a pair of disk-shaped members including a cylindrical center hole 27 for rotatably mounting to the parts cassette 11, and a carrier tape 21 is wound between both the disk-shaped members. The carrier tape 21 has many parts 1
2 are continuously stored at a constant interval 22. The carrier tape 21 has a concave embossed portion 2 for housing the component 12.
8 and a top tape 24 that prevents the component 12 from falling off and protects the component 12 from dust and the like. As mentioned above, the top tape 24
Is transported while being adhered to the base tape 23 to protect the component 12, and is peeled off from the base tape 23 when the component is supplied to the component mounting apparatus. The base tape 23 is provided with transport holes 25 that are driven by the drive wheels 33 at equal intervals when the carrier tape 21 is intermittently transported. In addition, the embossed portion 28 is not provided for the minute component, and the component may be stored while the carrier tape 21 is simply punched out. In this case, the bottom surface is covered with the cover tape.

A disk-shaped member that constitutes the reel 26 has a component 12 housed in a wound carrier tape 21.
A label 29 for displaying is attached. Bar code display is generally used. Since the top tape 24 is generally made of a transparent material, it is possible to visually see the components 12 contained in the carrier tape, but the components 12 are minute and have different specifications even if they have the same appearance. Because of this, it is almost impossible to visually distinguish the parts. Further, although the components can be judged by using the recognition device 5 of the component mounting apparatus 1 as described above, it is impossible to distinguish even the differences between the components having the same appearance. Therefore, the operator mounts the new reel 26 on the component mounting apparatus 1
When it is attached to the reel 26, the label 29 attached to the reel 26 is read by a barcode reader or the like, and it is verified whether or not the label 29 matches the predetermined component previously input to the control device 7 of the component mounting apparatus 1. To do. If they match, the mounting operation is continued, but if they do not match, a warning is issued or production is stopped.

FIG. 16 shows an outline when the carrier tape 21 pulled out from the reel 26 is conveyed inside the parts cassette 11. After being pulled out from the reel 26, the carrier tape 21 is conveyed by driving the drive wheels 33 on the conveying path 30 toward the component take-out position 32 located on the right side of the parts cassette 11 in the illustrated example. In the parts cassette 11 shown in FIG. 16, drive wheels 33 of a type driven by rotation of a motor 39 via a worm gear 49 are used. Immediately before the component take-out position 32, the top tape 24 is peeled off from the carrier tape 21 and wound around the recovery reel 34.

As shown in FIG. 16, the carrier tape 21.
Is transported on the transport path 30, so in the case of the carrier tape 21 having the embossed portion 28 shown in the figure, the bottom surface of the embossed portion 28 is transported in contact with the transport path 30. On the other hand, in the case of mainly fine parts that do not have the embossed portion 28, the carrier tape 21 is used as it is for the transport path 30.
Touch. Therefore, the carrier tape 2 is fed from the transport path 30.
1 is the distance to the surface (upper surface in the figure)
8 and the depth of the embossed portion 28.

By the way, in the component mounting apparatus 1, since the circuit forming bodies are continuously produced, the components 12 accommodated in the carrier tape 21 are sequentially consumed, and the components 12 accommodated in one reel 26 are delivered in a predetermined time. Used up. On this occasion,
Although it is possible to replace the entire parts cassette 11, the operation of the component mounting apparatus 1 is stopped in this way, and this method leads to a reduction in equipment operating rate. As a method of preventing this, the components 12 stored in one reel 26
When the remaining amount becomes low, the carrier tape 21 taken out from another reel 26 containing the same component 12 is connected to the final portion of the carrier tape 21 having the low remaining amount.

FIG. 17 shows one of the two carrier tapes 21 wound on the two reels 26, which is one of the means for joining the final end of one carrier tape 21a and the starting end of the other carrier tape 21b. Shows. A metal strip-shaped connector 35 is used to connect both carrier tapes 21, and the ends of both carrier tapes 21a and 21b are caulked to both sides of the strip-shaped connector 35 in the longitudinal direction.

The carrier tape 2 is attached to the belt-shaped connector 35.
The transport holes 36 are punched at the same pitch as the transport holes 25 of No. 1,
The caulking claw 37 stands up between the transport holes 36. The handheld coupling device 40 is provided with a coupling workbench 41, and the workbench 41 has a pitch 22 of the transport holes 25.
Four positioning pins 42 are erected at intervals of an integral multiple of. First, the connector 35 is fitted into the two positioning pins 42 at the center using the transport holes 36 and positioned.

Next, each of the carrier tapes 21a and 21b is fed into each of the two positioning pins 42 located on both sides in the X direction of the drawing from the center of the connecting work table 41, and the carrying holes 25 are formed in the two positioning pins.
Are respectively fitted and positioned by using. At this time, the front end portions of both carrier tapes 21 abut on both ends of the connector 35 so as to face each other. At this position, a pair of clamps 43 provided on the connecting work table 41 are put over the carrier tapes 21a and 21b, and the carrier tapes 21a and 21b are fixed in a positioned state. After that, the lever 44 of the coupling device 40 is tightened by the operator, the pressing portion 47 descends toward the coupling work table 41 via the toggle mechanism 46, and the carrier tapes 21a and 21b positioned and fixed and the position below them are positioned. The connectors 35 to be pressed are pressed together. By this pressing operation, the caulking claws 37 of the metallic connector 35 bite into the carrier tape 21 made of paper, resin, or the like, penetrate and are caulked at the tip end thereof, so that both carrier tapes 21a,
21b is connected by a connector 35.

The clamp 43 is released, and the positioning pin 4 is released.
The two carrier tapes 21a and 21b removed from No. 2 are connected so that the transport holes 25 have a uniform pitch 22, and the carrier tapes 21a and 21b look like one carrier tape 21. However,
As it is, the top tapes 24 (see FIG. 15) are not connected, so that the top tapes 24 of both carrier tapes 21 are connected by a connecting tape so as to straddle the top tapes 24. Figure 1
8 shows a state in which the cross section of the connecting portion of both carrier tapes 21 is seen from the longitudinal direction. In the figure, a connector 35 is located below the carrier tape 21 and the caulking claws 3 thereof are located.
7 bites into the carrier tape 21 and fixes it. Also, a top tape 24 that covers the carrier tape 21.
A connecting tape 38 is covered from above to connect the top tapes 24 to each other.

[0014]

There is room for improvement in the connection of the carrier tapes 21 according to the prior art having the above-mentioned structure. As mentioned above, each carrier tape 2
Although different components are separately stored in the component 1, different components 12 have the same external appearance, the width of the carrier tape 21, the transport hole pitch 22, and the like.
Can be stored. Therefore, when connecting a new carrier tape 21, the operator may mistakenly connect the carrier tapes 21 containing different components 12. The operator reads the label 29 attached to the reel 26 before connecting the carrier tape 21, but the control device 7 cannot determine when the component 12 is supplied from the new carrier tape 21. Further, even if the operator mistakenly forgets to read the label 29, this cannot be detected. Therefore, in the unlikely event that the wrong carrier tape 21
When these are connected, it is not possible to determine from which timing the erroneously mounted circuit forming body 18 was produced. For this reason, when collecting defective products, it is unnecessary to collect extra products (circuit-forming bodies) in anticipation of safety, or it is necessary to perform 100% inspection for each individual product. Will occur.

Japanese Patent Laid-Open No. 2000-13092 discloses a countermeasure for solving such a problem. Here, the metal connector is electrically detected at the connection part of the carrier tape, or the color, reflectance, and transparency of the connection part and the other part can be clearly distinguished from each other. It describes the means for detecting. By performing the detection, the timing of switching the carrier tape is determined.

The present invention provides a simple detecting means for detecting such a connecting portion of a carrier tape, and also provides a more specific connecting portion detecting means not disclosed in the above publication. The object is to improve the component supply method and the component supply device. A further object of the present invention is to provide a means for easily forming a detecting portion for detecting a carrier tape connecting portion on a carrier tape.

[0017]

According to the present invention, a carrier tape is provided with a deformed portion such as a notch, a protrusion, a bent portion, and the like, and the deformed portion is detected by a sensor, and the carrier tape is cut. The above problem is solved by providing a device and a device for connecting the carrier tape with means for forming these deformed portions, and specifically includes the following contents.

That is, one aspect of the present invention is
A component supply method in which a carrier tape having a large number of components arranged and stored at regular intervals is wound around a reel, the carrier tape is pulled out from the reel, and the components are sequentially supplied to a component mounting apparatus. When connecting the carrier tapes, the connecting portion can be detected by forming an identifying portion that can identify the connecting portion on at least one of the carrier tapes.

The identification portion formed on the carrier tape may be a cutout portion, a bent portion, or a protruding portion. It is also possible to twist the carrier tape transported in a substantially horizontal direction by about 90 ° with respect to the axis in the transport direction and detect the identifying portion from the substantially vertical direction. It is also possible to use a component supply device of the type which conveys a plurality of the carrier tapes in parallel. In this case, the plurality of sensors respectively detecting the identification portions of the plurality of carrier tapes,
It is preferable that the carrier tape is arranged so as to be shifted in the front-rear direction with respect to the transport direction.

When detecting the notch formed on the carrier tape, a contact may be brought into contact with the notch and the movement of the contact may be detected to detect the connecting portion. it can. When using a component supply device of the type that conveys a plurality of the carrier tapes in parallel,
It is possible to detect the movements of the plurality of contacts respectively contacting the cutout portions of the plurality of carrier tapes arranged in parallel by using one sensor.

The identification portion formed on the carrier tape may be either a matte portion or a bright portion formed on either the surface of the carrier tape or the surface of the connecting tape connecting the both carrier tapes. It is possible. In this case, the matte portion is any one of matte treatment of the surface of the connecting tape, matte coating on the surface of the carrier tape or the surface of the connecting tape, and sticking of a matte tape on the surface of the carrier tape or the surface of the connecting tape. Can be formed by. It is preferable that the connecting tape is colored in a color different from that of the carrier tape. The bright portion can be formed by either attaching a tape having a metallic reflection surface to the carrier tape surface or the connection tape surface, or by performing a metallic reflection surface treatment on the connection tape surface.

Another aspect of the present invention is a component in which a carrier tape containing a large number of components arranged at regular intervals is wound around a reel, the carrier tape is pulled out from the reel, and the components are sequentially supplied to a component mounting apparatus. A method of supplying, in which when connecting one carrier tape to another carrier tape, by detecting the operation when replacing the reel wound with each carrier tape from the component supply device, The present invention relates to a component supply method characterized in that connection can be detected.

The operation of replacing the reel can be detected by detecting the movement of the reel holder that moves or rotates while holding the reel. Alternatively, the movement of the reel cover that covers the reel may be detected while the reel is attached to the component supply device.

Still another aspect of the present invention is to drive a reel holder, to which a reel having a carrier tape for accommodating a large number of components arranged at regular intervals can be attached, and a carrier tape taken out from the reel. Conveying means for conveying and top tape collecting means for covering the carrier tape and protecting the housed parts by stripping and collecting the top tape, and collecting the parts housed in the carrier tape into a component mounting apparatus. A component supply device for sequentially supplying, when connecting one carrier tape to another carrier tape, a connecting portion for detecting an identifying portion formed on at least one of the carrier tapes capable of identifying the connecting portion. The present invention relates to a component supply device, which further comprises detection means.

The identification portion formed on the carrier tape may be any of a cutout portion, a bent portion, a protruding portion, a matte portion, and a bright portion. The connecting portion detection means for detecting the cutout portion includes a contactor formed to fit into the cutout portion, a rotatable or movable lever supporting the contactor, and a movement of the lever. And a detecting sensor, and the sensor detects the rotation or movement of the lever when the contact is fitted in the cutout portion of the carrier tape, thereby detecting the connecting portion. be able to.

Further, the connecting portion detecting means for detecting the protruding portion includes a contactor that contacts the protruding portion, a rotatable arm that supports the contactor, and a rotation of the arm. The sensor can detect the rotation of the arm when the contactor comes into contact with the protrusion of the carrier tape, and the sensor can detect the connecting portion. .

Further, the connecting portion detecting means for detecting the bent portion is composed of an optical sensor composed of a pair of a light emitting side and a light receiving side, and the bent portion of the carrier tape is an irradiation light of the optical sensor. It is possible to detect the connecting portion by cutting off.

A height adjusting mechanism for making the height of the surface of the carrier tape relative to the conveying path of the carrier tape substantially constant, regardless of the presence or absence of the embossed part for storing the parts of the carrier tape and the height of the embossed part. Is preferably provided. The height adjusting mechanism may be a pit formed in the carrier tape transport path along the carrier tape transport direction.

The connecting portion detecting means for detecting either the matte portion or the bright portion is composed of a reflection type sensor, and the distance from the reflection type sensor to the detected surface of the carrier tape is the carrier tape. It is preferable to provide an interval adjusting mechanism that automatically adjusts to a constant interval regardless of the thickness, the presence or absence of an embossed portion for housing the parts of the carrier tape, and the height of the embossed portion. The interval adjusting mechanism, a contactor that comes into contact with the surface to be detected of the carrier tape by its own weight or a biasing force,
The reflection type sensor may be fixed to the sensor holder, and the sensor holder may be configured to move in synchronization with the movement of the contactor.

Still another aspect of the present invention is to drive a reel holder capable of mounting a reel wound with a carrier tape for arranging and storing a large number of components at regular intervals, and a carrier tape taken out from the reel. Conveying means for conveying and top tape collecting means for covering the carrier tape and protecting the housed parts by stripping and collecting the top tape, and collecting the parts housed in the carrier tape into a component mounting apparatus. A component supply device for sequentially supplying, further comprising a detection means for detecting replacement of a reel wound with each of the carrier tapes when connecting one carrier tape to another carrier tape. The present invention relates to a component supply device.

The detection means for detecting the replacement of the reel is
The detection means can detect the movement of the reel holder that rotates or moves between the reel loading position and the reel replacement position while holding the reel. The reel holder part may be separated from the component supply device and arranged in proximity to the component supply device.

Still another aspect of the present invention is a workbench equipped with a positioning mechanism for positioning and holding a pair of carrier tapes to be connected, and a pressing portion for applying a pressing force to the workbench. And a pair of carrier tapes positioned and held on the workbench and a connector having a caulking claw are overlapped and pressed by the pressing portion, whereby a pair of the plurality of components arranged and housed at a constant interval are arranged. A carrier tape connecting device for connecting carrier tapes, wherein the connecting device can detect the connecting portion of the pair of carrier tapes on at least one of the pair of carrier tapes at the same time as performing the pressing operation. The present invention relates to a coupling device, which is provided with an identification portion forming mechanism that provides various identification portions.

The identifying portion forming mechanism may form any of a cutout portion, a bent portion, a protruding portion, a matte portion, and a bright portion in the vicinity of the connecting portion of the carrier tape. The identification portion forming mechanism provides a notch blade or a convex shape on either one of the work table and the pressing portion, and a notch blade corresponding to the notch blade or a concave shape corresponding to the convex shape on the other side. It can be configured by Alternatively, the identifying portion forming mechanism can be configured by providing the pressing portion with a matte coating portion and the work table with a holding table corresponding to the matte coating portion.

Still another aspect of the present invention is a pair of cutting blades for cutting a carrier tape in which a large number of components are arranged and housed at regular intervals, and a pair of cutting blades for positioning and holding the carrier tape. A cutting device for a carrier tape, which comprises a positioning mechanism provided on any one of the above, and cuts the carrier tape positioned and held by the positioning mechanism with the pair of cutting blades, wherein the cutting device is the carrier. The present invention is characterized by including an identification portion forming mechanism that forms an identification portion that can detect a connection portion at the time of connecting another carrier tape at a cut portion of the tape, on the carrier tape at the same time when the carrier tape is cut. Regarding the cutting device.

The identifying portion forming mechanism may form any one of a cutout portion, a bent portion, a protruding portion, a matte portion and a bright portion in the vicinity of the cut portion of the carrier tape. The identification portion forming mechanism, by providing a notch blade or a convex shape on either one of the pair of cutting blades, a notch blade corresponding to the notch blade or a concave shape corresponding to the convex shape on the other one. Can be configured. Alternatively, the identification portion forming mechanism may be configured such that one of the pair of cutting blades is provided with a matte coating portion, and the other is provided with a presser base corresponding to the matte coating portion.

[0036]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. In the following description, the same components as those described in the related art are designated by the same reference numerals. Further, the component mounting device and the component supply device (parts cassette) for carrying out the present invention are basically the same as those used in the prior art. Therefore, in the following description, differences from the prior art are particularly noted. The parts shall be mentioned.

FIG. 1A shows one mode of the carrier tape connecting portion detecting means according to the first embodiment of the present invention. In the figure, a carrier tape (hereinafter, referred to as “old carrier tape”) 21a currently used for supplying components to the component mounting apparatus and a carrier tape that is newly connected and used (hereinafter, “new carrier tape”) 21b are connected to each other by a connecting portion 20, and at least one of the carrier tapes 21 (new carrier tape 21b in the illustrated example) in the vicinity of the connecting portion 20 serves as a recognition portion. V-shaped notch 51
Is provided. In this case, the carrier tape 21 may be connected by using, for example, a conventional metal connector 35 (see FIG. 17). The notch 51 for recognition is formed on the carrier tape 21.
Preferably, the method described below is performed without additional work.

The reel (not shown) on which the carrier tape 21 having the cutouts 51 formed is wound is mounted on the parts cassette, and on the conveying path 30 shown by the broken line provided in the parts cassette according to the consumption of the parts. Are sequentially transported to the left side in the Y direction in the figure. Inside the transport path 30, a contact 52, a lever 53 for fixing the contact, and a lever 53.
A detection unit 50 including a transmissive sensor 54 that detects the movement of the sensor is provided. The lever 53 is rotatable about a fulcrum 56, and is constantly urged by a spring 57 to the left (clockwise) in the X direction of the drawing. The carrier tape 21 is conveyed, and the cutout portion 51 has the contact 5
When reaching the position 2, the contact 52 fits into the notch 51, and at this time, the lever 53 is rotated clockwise about the fulcrum 56 by the urging force of the spring 57. By this rotation, one end of the lever 53 shuts off the transmissive sensor 54, and thus the passage of the cutout 51 is detected. Since the distance between the cutout portion 51 and the connecting portion 20 is known in advance, the passage of the connecting portion 20 of the carrier tape 21 can be detected by this.

The operator has previously set a new carrier tape 21.
Since the reading operation of the label 29 (see FIG. 15) attached to b is completed, the control device 7 (see FIG. 13) preliminarily matches the timing when the detection unit 50 detects the passage of the connecting portion 20. Specifications and label of the specified parts that are input 2
The specifications of the parts input from the reading of 9 are compared, and it is verified whether or not they match. If they match, the mounting operation is continued. If they do not match, the mounting operation is stopped to avoid erroneous component mounting, or a warning is issued if necessary. Further, the control device 7 can store the switching time point of the reel 26 in accordance with the passage of the connecting portion 20, and can improve the traceability of the history tracking.

In the illustrated example, a light transmission type photo sensor is used as the sensor 54, but a reflection type sensor for detecting the reflected light from the surface of the lever 53 or the lever 53.
It is also possible to use other sensors such as a sensitive sensor that operates the limit switch by rotating the. The V-shaped notch portion 51 is driven by the contactor 52 being detached from the notch portion 51 by the further conveyance of the carrier tape 21 after the contactor 52 is once fitted and easily returned to the original position. It is preferable to have a shape that does not cause resistance.

FIG. 1B shows an example of the shape of the cutout portion 51 that can satisfy such requirements. In the figure, the carrier tape width (vertical direction in the figure) is 8 mm, the diameter of the transport hole 25 is 1.5 mm, and the center distance of the transport hole 25 is 4 mm.
mm, the dimension of each symbol shown in the drawing is a = 1 mm,
It is preferable that b = 3 mm, h = 1.5 mm, and w = 2 mm. Since the carrier tape 21 is conveyed to the left side of the drawing, the contact 52 (diameter 1.2 mm) is easily pushed back to the original state by the gentle slope of the notch 51.

FIG. 1 (c) shows an alternative detector 50a. In this alternative example, the contact 52 is fixed to a lever 53a that is slidable along the transport direction of the carrier tape 21. Since the movement of the lever 53a is restricted by the release pin 55 provided on the parts cassette side after sliding a certain distance, the engagement between the contact 52 and the notch 51 is released. During the movement of the lever 53a, the protrusion 53b of the lever 53a operates the limit switch 58, and it is possible to know the passage of the connecting portion 20 of the carrier tape 21 by the energization at this time.

The V-shaped notch 51 used with this alternative detector 50a differs from the previous embodiment shown in FIG. 1 (b) in that the contact 52 is notched while the contact 52 moves. It is preferable that the portion 51 does not come off. An example of the shape of the V-shaped notch 51 is shown in FIG.
It is preferable that the inclination of (b) is interchanged between left and right, and a steep inclination is arranged on the downstream side with respect to the traveling direction which is the Y direction in the figure.
In the case of an alternative method in which the lever 53a slides, the cutout 51 may be a cutout having another shape such as a rectangular shape instead of the V shape. further,
Although the limit switch (sensitive sensor) 58 is used as a sensor in the example shown in FIG.
Other types of sensors such as a transmissive sensor using the protrusion 53b of a or a reflective sensor may be used.

As described with reference to FIG. 16,
Depending on the carrier tape 21, an embossed portion 28 is provided, and depending on the presence or absence of this embossed portion 28 and the height (depth) of the embossed portion 28, the conveyance of the surface of the carrier tape 21 provided with the cutout portion 51 is performed. The height from the road 30 will be different. Therefore, when the carrier tape 21 is conveyed and moved onto the conveying path 30 in this state, it is necessary to adjust the height of the contact 52 fitted in the cutout portion 51, resulting in an inability rate.

FIG. 2 (a) shows a countermeasure for solving this problem. Here, as shown in the figure, a pit (a groove in the form of a groove) is formed in the conveying path 30 of the carrier tape 21 along the conveying direction. 59 is provided. The width L of the pit 59, which is perpendicular to the traveling direction, is set to a width in which the largest embossed portion 28 of the carrier tape 21 to be conveyed can fit. Therefore, when the carrier tape 21 is transported, all the embossed portions 28 have the pit 59.
Pass through. Therefore, the surfaces of the various carrier tapes 21 with respect to the transport path 30 are maintained at a substantially constant height, and it is not necessary to adjust the height of the contact 52.

In the parts cassette 11, a plurality of reels 26 are attached and a plurality of carrier tapes 21 for accommodating several kinds of parts (or the same parts) may be conveyed in parallel. is there. Even in such a case, the detection unit according to the present embodiment can be applied. FIG. 2B shows a state in which the two carrier tapes 21 indicated by broken lines and the notch portion 51 formed in each carrier tape 21 are seen from above the detection portion 50b capable of being detected. The contacts 52 and the levers 53 for fixing the contacts 52 are arranged corresponding to the carrier tapes 21,
Both levers 53 are biased by springs 57 so as to be rotatable about the same fulcrum 56 downward in the figure. The ends of the two levers 53 on the side opposite to the center 56 are arranged so as to substantially overlap with each other so that the transmission type sensor 54 can be blocked.

In this state, when one of the contacts 52 fits into the notch 51, the lever 53 rotates and the sensor 54 detects the movement. It is unclear which carrier tape 21 the connecting portion 20 has passed through only by this detection, but since the reading of the label 29 of the corresponding reel 26 has been input in advance, it is possible to determine which is the case. is there. Of course, it is possible to individually provide the sensor 54 corresponding to each lever 53, if necessary. Also, FIG.
Although (b) shows an example in which two carrier tapes 21 are conveyed in parallel, three or more carrier tapes 21 may be delivered in parallel.

FIG. 3A shows another mode in which the notch 51 provided on the carrier tape 21 is directly detected by using the sensor 54. The sensor 54 is arranged so as to straddle one edge of the carrier tape 21. If the sensor 54 is a transmissive sensor, the light emitted from the light emitting side is blocked by the carrier tape 21 in the normal state, and reaches the cutout portion 51 so that the light is recognized by the light receiving side. Can be detected. In addition, the notch 51 in this case is V
It may have any shape as long as it can pass or block the light emitted from the light emitting side without being shaped like a letter, or may be perforated. Carrier tape 2 for punching
It must be distinguishable from the transport hole 25 provided in 1.

In general, since various types of components are supplied to the component mounting apparatus, the gap between the plurality of parts cassettes 11 mounted on the component mounting apparatus is very limited. For this reason, it may be disadvantageous in space that the sensor 54 is arranged so as to protrude from the carrier tape 21 in the form shown in FIG. FIG. 2B shows one of the solutions in such a case. Here, the carrier tape 21 is twisted about 90 ° around the longitudinal axis, and the sensor 54 detects the notch 51 across the carrier tape 21 from above in the vertical direction. Since there are generally no obstacles above the parts cassette 11 when mounted in the component mounting apparatus 1, such a layout does not cause a space problem. Contrary to the case shown in the figure, the carrier tape 21 is twisted in the opposite direction by about 90 ° so that the cutout portion 51 faces downward, and the cutout portion is formed from below in the pit-shaped groove formed in the transport path 30. It may be configured to detect the part 51. Although the mechanism for twisting the carrier tape 21 is omitted in FIG. 3A, it is possible to use a guide roller or the like.

As described above, some parts cassettes 11 are equipped with two or more reels 26 and carry a plurality of carrier tapes 21 in parallel. Even in such a case, as shown in FIG. 3B, both carrier tapes 21 are twisted, and the notch 51 is formed by the sensor 54 in the vertical direction from above (or below).
Can be detected, and the space problem can be solved. At this time, if a plurality of sensors 54 are arranged with respect to a plurality of carrier tapes 21 arranged in parallel with each other so as to be offset from each other in the conveying direction of the carrier tapes 21 as indicated by a symbol D, there is more space. it can. Since the position of each of these sensors 54 can be known in advance, it is easy to know the connecting portion 20 that switches to the new carrier tape 21 by detecting the cutout portion 51.

In another embodiment of detecting the connecting portion of the carrier tape according to the present embodiment shown in FIG. 4A, a protrusion having a raised part of the surface of the carrier tape 21 instead of the notch 51 is formed. 61 is formed in the vicinity of the connecting portion 20. On the surface of the carrier tape 21, a detection unit 50c including a limit switch 58 as shown in the drawing is arranged, and the roller-shaped contact 52a forming the limit switch 58 is constantly brought into contact with the surface of the carrier tape 21, This can be detected when the protrusion 61 reaches.

Further, in another embodiment shown in FIG. 4B, instead of providing the cutout portion 51 or the protruding portion 61, a bent portion 62 obtained by cutting and raising a part of the carrier tape 21 is formed in the vicinity of the connecting portion 20. ing. From the light emitting side 63 to the light receiving side 64 of the detection unit provided on one side of the carrier tape 21 in the conveying direction.
By blocking the illuminating light directed at the bent portion 62, the passage of the carrier tape 21 through the connecting portion 20 can be detected. Light emitting side 63 and light receiving side 64 of the detector 50d
The light emitting side 6 is not necessarily arranged at right angles to the traveling direction of the carrier tape 21, and is preferably arranged in a direction that is orthogonal to the surface of the bent portion 62 and is opposed thereto.
It is sufficient that the light emitted from 3 is surely blocked.

The shape of the bent portion 62 is not limited to the triangular shape shown in the drawing, but may be any other shape such as a rectangular shape as long as the bent portion 62 can be detected by the detection unit 50d. Further, the detection unit 50d that detects the bent portion 62 may not be a transmissive sensor, but may be another sensor such as a reflective sensor that reflects light emitted from one side by the bent portion 62 for detection. . Furthermore, by providing the above-mentioned pit 59 in the carrier tape transport path 30, it is not necessary to adjust the position of the sensor according to the height of the embossed portion 28 of the carrier tape 21,
It is advantageous.

Next, a carrier tape connecting portion detecting means according to a second embodiment of the present invention will be described with reference to the drawings. When connecting carrier tapes, it is always necessary to replace the reels from the parts cassette. That is, the reel from which the old carrier tape is pulled out is removed from the parts cassette, and the reel on which the new carrier tape connected to the old carrier tape is wound is replaced and mounted in the parts cassette. In the present embodiment, by detecting the timing at which the reel is replaced, it is detected that the new carrier tape is connected.

FIG. 5 shows one form of means for detecting the connection of the carrier tapes of this embodiment. In the figure, the reel 26 is separated from the parts cassette body 11a and mounted in a reel box 71 separately prepared on the floor near the parts cassette body 11a. The carrier tape 21 pulled out from the reel 26 is guided to the parts-cut main body 11a, and thereafter, similarly to the parts cassette 11 shown in FIG. Supply parts. In recent years, as electronic devices have become more multifunctional and the number of parts to be mounted is large, more parts are stored in one reel 26 in order to improve productivity. Therefore, the weight of the reel 26 around which the carrier tape 21 is wound is inevitably heavy, and when the reel 26 is mounted on the parts cassette 11 as it is, an excessive load is applied to the support portion of the parts cassette 11 too much. Further, since the reel 26 is also increased in size and the amount of protrusion from the component mounting apparatus is increased to reduce workability, the reel portion is separated as shown in the drawing.

When the reel 26 is mounted in the reel box 71, the reel holder 72 is pulled out to the exchange position shown by the broken line in the figure. A new reel 26 is inserted into this and the reel holder 72 is pushed again to the left side in the Y direction to complete the reel exchange. Since a large number of reels 26 including various parts are arranged in a direction perpendicular to the drawing, the operator can pull out such a reel holder 72 to the front side (right side in the drawing) to enhance workability of reel exchange. There is. That is, in this type of parts supply,
When replacing the reel 26, be sure to use the reel holder 72
Is rotated. In this aspect, the movement of the reel holder 72 is detected to detect the reel replacement, and thereby the carrier tape is connected.

In FIG. 5, a sensor 74 arranged at the bottom of the reel box 71 detects the movement of the reel holder 72 when it is rotated. In this case, the sensor 74 can use various types other than the limit switch.
In the illustrated example, the sensor 74 is provided near the fulcrum 76 around which the reel holder 72 rotates, but this position is the fulcrum 76.
It may be provided at the tip end portion of the reel holder 72 on the opposite side to or at the central portion in the longitudinal direction of the reel holder 72.

Further, the sensor 74 operates when the reel holder 72 moves away from the mounting position or when the reel holder 72 reaches the replacement position.
It may be detected when the reel is returned to the original mounting position after replacement. Furthermore, in order to distinguish between the case of replacing the reel and the simple cleaning of the reel box 71,
It is possible to set the pull-out position of the reel holder 72 in two stages and to make the sensor 74 detect this only when it reaches the exchange position. In the illustrated example, the reel holder 72 is rotated so that the reel 26 can be replaced. However, the reel holder 72 may be slid and pulled out, and the time of pulling out may be sensed.

Alternatively, as also shown in FIG. 5, a wire 77 is extended from the tip of the reel holder 72 and is connected to one end of a lever 81 via rollers 78 and 79 provided on the parts cassette body 11a. The lever 81 is rotatable around a fulcrum 82, and the return spring 8
It is always urged clockwise by 3. When the reel holder 72 at the loading position is pulled out for the reel exchange, the reel holder 72 is temporarily moved to the parts cassette body 11a.
When the reel holder 72 is completely pulled out after the lever 81 is rotated clockwise during this time, the wire 77 pulls the lever 81 again, and rotates the lever 81 more than when it is in the loading position. By detecting this movement with the sensor 84, it is possible to detect that the reel holder 72 is at the replacement position. To this end, when the reel holder 72 is completely pulled out for the purpose of reel replacement, the replacement position of the reel holder 72 indicated by the broken line is the loading position of the reel holder 72 when the reel 26 is attached to the roller 78 provided on the parts cut body 11a. It is configured to be farther than the position (solid line).

The sensor 84 in this case may be of any type as long as it can detect the movement of the lever 81 as in the above-mentioned example. Further, although the lever 81 is of a rotating type, it may be of a type in which it is pulled by the wire 77 and slides. In either case,
A biasing force is applied to the lever 81 in a direction in which the wire 77 is pulled back by a return spring 83 or the like.

As a further alternative, as shown in FIG. 5 as well, when the rod-shaped member 85 is hung from the parts cassette body 11a located right above the reel holder 72 and the reel holder 72 is pulled out to the replacement position, the reel holder 72 is replaced.
However, the bar-shaped member 85 interferes with the bar-shaped member 85 and the bar-shaped member 85 is fulcrum 8
It arranges so that 6 may be rotated. The movement at this time may be detected by a sensor 87 arranged near the fulcrum 86 of the rod-shaped member 85.

Incidentally, FIG. 5 shows the reel holder 72 described above.
However, it is not necessary to provide all of these detection means at the same time, and at least any one of the detection means may be provided.

A further alternative way of detecting reel 26 change is shown in FIGS. 6 (a) and 6 (b). Some parts cassettes 11 in which the reel 26 is directly mounted have a reel holder 72a formed in a flip-up type as shown in FIG. 6 (a). This type of configuration is for allowing the reels to be exchanged while the parts cassette 11 is still loaded in the component mounting device without being damaged by the adjacent parts cassette 11. The reel holder 72a has a fulcrum 8 up to the position indicated by the broken line in the figure with the reel 26 still mounted.
Rotate around 8. The replacement of the reel 26 can be known by disposing the sensor 89 near the fulcrum 88 as shown in the drawing and detecting this movement by the sensor 89 using the portion of the reel holder 72a. Similar to the other examples described above, the type and the arrangement position of the sensor 89 are arbitrary as long as the movement of the reel holder 72a can be detected.

In still another type of parts cassette 11b as shown in FIG. 6B, the reel 26 can be directly fitted into the reel holder 72b attached to the parts cassette 11b from above. In the parts cassette 11b of this type, as shown in the drawing, a sensor 9 such as a limit switch is provided at the bottom of the reel holder 72b.
It is possible to know the replacement of the reel 26 by providing 0, or by providing the reel cover 91 and providing a sensor 92 such as a transmissive sensor that detects the opening / closing of the reel cover 91 when the reel 26 is replaced.

According to each detecting means for detecting the carrier tape connecting portion according to this embodiment, the carrier tape connecting portion 20 can be indirectly detected by detecting the reel exchange. Since the timing of reel exchange is directly detected, the approximate timing of connecting the carrier tape 21 is grasped. This grasp of the connection of the carrier tape 21 can be used for subsequent production history tracing. Also,
Since the reading result of the label 29 attached to the reel 26 is verified at the same time when the reel exchange is detected, at least when the wrong carrier tape 21 is connected, or when the operator forgets to read the label 29,
It is possible to reliably capture these and prevent the production of defective products.

Next, a carrier tape connecting portion detecting means according to a third embodiment of the present invention will be described with reference to the drawings. In the above-mentioned Japanese Patent Laid-Open No. 2000-13092, the reflectance of the taping connection portion and other portions is made different,
It is described that this difference is detected to detect the connection portion. Further, as a specific example thereof, it is described that the color of the carrier tape is white, which has a large amount of reflected light, and the coupling tape is black, which has a small amount of reflected light.

FIG. 7 shows the result of an experiment conducted by the inventors of the present application, in which the difference in the amount of reflected light is measured for 10 types of connecting tapes. For the measurement, a commercially available reflected light amount measuring instrument is used, and the detection distance at that time is 7 mm, and the vertical axis of the figure shows the reading of the measuring instrument. The abscissa indicates various connecting tapes used in the experiment, and various combinations of various colors and surface states (matte or gloss) are selected as shown in the figure. In two adjacent bar graphs of the same connecting tape, the right side shows the maximum value of measurement and the left side shows the minimum value. Therefore, the difference between the two shows the variation between the measurements due to uneven color. As is clear from this result, it is found that the difference in the surface state contributes to the reflected light amount much more than the difference in the color of the connecting tape.

FIG. 8A shows a dark blue / matte C connecting tape (4 from the left in FIG. 7) among the connecting tapes shown in FIG.
The second item is the result of measuring the amount of reflected light from both tapes when actually attached to various carrier tapes. The abscissa indicates the distinction between the carrier tapes used in the experiment. Of each combination, the left two are the amount of reflected light from the connecting tape,
The two lights on the right side are the amount of reflected light from each carrier tape, and the two lights show the maximum and minimum values of the respective measurements. According to this result, no matter which carrier tape 21 is used (including a translucent carrier tape), there is a clear difference between the carrier tape 21 and the dark blue matte C connecting tape 38. You can FIG. 8B shows only the minimum value (the right side) of the reflected light amount of each carrier tape 21 and the maximum value (the left side) of the reflected light amount of the connecting tape from FIG. The ones in which the amount of reflected light between the tapes is the closest are taken out and compared. Even if such measurement variations are taken into consideration, both tapes 21, 3
It can be seen that the difference in the amount of reflected light between 8 can be clearly recognized.

As described above, the surface state has a greater effect on the reflected light amount than the color of the connecting tape for the following reason. FIG. 9A shows a cross section of a commonly used connecting tape 38. In FIG. 9A, in the conventional tape, the color-coded coating layer 94 is applied to the base film 93.
Is provided, and the adhesive layer 96 is applied to the side of the color-coded coating layer 94 to form an adhesive tape. In this case, since the light is emitted from above as shown by the thick arrow in the figure, the amount of reflected light is more affected by the surface of the base film 93 than that of the color-coded coating layer 94. On the other hand, the inventors of the present application, as shown in FIG. 9B, provide a matte color-coded coating layer 97 on the surface of the base film 93, which is opposite to the matte surface on the base film 93. An adhesive layer 96 was provided on the side surface. With such a configuration, the surface of the matte coating layer 97 is exposed to light rays,
The amount of reflected light could be kept low.

FIG. 9C shows a substrate film 93a whose surface is so-called satin-finished as an alternative. By treating the base material film 93a itself in this way, the amount of reflected light can be reduced without applying matte coating. This is because it has an effect of diffusing light by diffusely reflecting the light emitted from the matte surface. Instead of the matte coating layer 97 shown in FIG.
It is also possible to superimpose another tape that has been subjected to such a satin treatment on the top surface of 3.

FIG. 9D shows another mode of the present embodiment. In this embodiment, instead of the matte layer on the surface of the substrate film 93, on the contrary, a reflective layer 98 that promotes reflection on the surface is provided. In the illustrated example, the reflective tape layer 98 having a metallic or mirror-like reflective surface.
Is attached to the surface of the substrate film 93, and the reflectance of the reflective tape layer 98 is extremely increased with respect to the carrier tape 21. Such metal-like reflective tape is available on the market, and can be increased to about 3000 on the scale of reflected light amount shown in FIGS. By attaching the connecting tape 38 having such a surface to a carrier tape having a matte surface in particular, the connecting portion 20 of the carrier tape 21 can be easily detected. In addition, in order to increase the reflectance of the surface, in addition to providing the above-described reflective tape layer 98, a mode of performing a reflection treatment such as providing a metal vapor deposition layer on the base film 93 itself is possible.

FIG. 10A shows a structural example of a sensor for detecting the connecting portion 20 of the carrier tape 21 having the above structure. A light reflection type sensor is used as the sensor 101, and the sensor 101 is arranged above and facing the surface of the carrier tape 21 that is intermittently conveyed. When any one of the above-described connecting tapes 38 attached to the surface of the carrier tape 21 moves to a position facing the sensor 101, the sensor 101
The sensor 101 detects a change in the amount of reflected light that is emitted from the laser beam, reflected by the connecting tape 38 and returned, is amplified by the amplifier 102, and then the measured value is input to the control device 7 (see FIG. 13). The controller 7 recognizes the connecting portion 20 of the carrier tape 21 based on the difference in the amount of reflected light on the connecting tape 38.

Similarly, in FIG. 10A, the connecting tape 38
Instead of this, an alternative method of directly forming the matte portion 95 on the carrier tape 21 is also shown. That is, the matte portion 95 is provided in place of the cutout portion 51, the protruding portion 61, and the like shown in the first embodiment, and the sensor 101 detects the matte portion 95, so that the connection portion 20 can be detected. The matte portion 95 may be matte paint or may be attached with a matte tape, which can be easily formed by means described later. Of course, a bright portion may be provided instead of the matte portion 95. In consideration of the transport speed of the carrier tape 21, the width s in the transport direction required for detecting the matte portion (or bright portion) 95 is about 2 to 3 mm.

FIG. 10 (b) shows an example of the mounting means of the sensor 101 at this time.
01 is fixed to the sensor holder 103, and the sensor holder 1
03 is mounted on the carrier tape 21 via a contactor 104 such as a roller. At this time, the contactor 104 may be biased downward by the spring 106 or the like, or may contact the carrier tape 21 by its own weight. Some carrier tapes 21 are provided with an embossed portion 28 for accommodating the component depending on the size of the component, and the height (depth) of this embossed portion 28 differs depending on the component 12. Further, even the carrier tape 21 not having the embossed portion 28 may have different carrier tape thicknesses. For this reason, the height of the surface to be measured of the parts cassette 11 with respect to the carrier tape transport path 30 is different for each carrier tape 21. By arranging the sensor 101 via the sensor holder 103 as shown in the figure, the distance between the sensor 101 and the measurement surface of the carrier tape 21 can be automatically adjusted so as to always be constant, and the carrier tape 21 This is efficient because it is not necessary to adjust the focus of the sensor 101 each time it is changed.

In this embodiment, the carrier tape 2
The difference in the amount of reflected light between No. 1 and the connecting tape 38 is obtained by providing a matte portion or a bright portion on the surface, but in addition to this, it is of course possible to provide a color difference between the two. Although the difference in the amount of reflected light due to the color difference is recognized to some extent, another advantage is that the operator can easily find the connecting portion 20 of the carrier tape by visual observation.

Next, a fourth embodiment according to the present invention will be described with reference to the drawings. This embodiment is the first
And the carrier tape connecting portion 2 shown in the third embodiment.
It relates to means for forming an identification part for detecting a zero. FIG. 11 shows a mode in which the connecting device 40 for connecting the carrier tape 21 shown in FIG. In FIG. 11, the new and old carrier tapes 21a, 2 are provided between the connecting work table 41 and the pressing portion 47.
1b and the connector 35 (broken line) are placed, and both carrier tapes 21a and 21b are connected by pressing these with the pressing portion 47 against the connecting work table 41. In the coupling device 40a of the present embodiment, a notch blade 107 is provided in the pressing portion 47, and a notch blade (punching hole) 108 is provided in the coupling work table 41 corresponding to the notch blade 107, as compared with the related art. It is additionally provided. When the carrier tape 21 is connected, the pressing portion 47 presses the carrier tape 21 on the connection work table 41, and at the same time, the carrier tape 21 has a V-shaped shape indicated by a broken line between the notch blade 107 and the punching hole 108. The cutout portion 51 is formed.

By constructing the connecting device 40a as described above, it is possible to easily form the notch 51 capable of detecting the connecting portion 20 at the same time as connecting the carrier tape 21 without providing an additional step. You can In the illustrated example, the notch 51 is provided on the old carrier tape 21a shown on the left side of the figure, but it may be provided on the side of the new carrier tape 21b shown on the right side of the figure, or if necessary. Carrier tape on both sides 21
It may be provided in a and 21b. Further, the cutout portion 51 is not limited to the V-shaped one, and may have another shape. Furthermore, as shown in the first embodiment,
When the bent portion 62 is formed instead of the cutout portion 51, the cutout blade 107 is configured to be capable of partially cutting and partially bending, and instead of the punching hole 108, the notch portion is lifted from below at the time of pressing. It is formed so that a link mechanism is provided. Similarly, instead of the notch 51, the protrusion 6 is formed.
When 1 is provided, a concave type is used instead of the notch blade 107,
Instead of the punching hole 108, a convex shape is formed in which the carrier tape 21 is pressed from below when pressed. These molding techniques are known in the pressing field.

The carrier tape 21 is connected to the connecting device 4
When connecting using 0 and 40a, both carrier tapes 21
Even if both a and 21b are turned to the front side on the connecting work table 41,
Both can be connected to the back side. Therefore, the arrangement of the notch blade 107, the punched hole 108, the convex type, and the concave type described above can be reversed.
In particular, the bent portion 62 and the protruding portion 61 are formed on the carrier tape 21.
If the carrier tape 21 is set to face down and the carrier tape 21 is pushed from the pressing portion 47 toward the connecting work table 41 side to form these, the above-mentioned link mechanism becomes unnecessary. , Easy. On this occasion,
The connector 35 is the carrier tape 21 set face down.
It can also be placed on top of.

FIG. 12 shows the carrier tape 21 and the connecting portion 2
Another form in which a recognition unit for recognizing 0 is provided is shown. Here, a cutting device 110 for cutting a carrier tape is shown.
To use. In general, the final portion of the carrier tape 21 wound on the reel 26 enables the reel 26 to be wound, and the carrier tape 21 up to the drive wheel 33 (see FIG. 14) of the parts cassette 11 is provided at the head portion of the carrier tape 21. In order to guide the components, a portion in which the component 12 is not housed is provided. In order to connect the new and old carrier tapes 21a and 21b, therefore, these parts must be cut by the cutting device 110 so that the parts 12 in which they are housed are continuous.

For this reason, the cutting device 110 for cutting the carrier tape is provided with a pair of cutting blades 111, 1 of the cutting device 110.
A positioning mechanism 114 including a plurality of positioning pins 113 for positioning the carrier tape 21 is fixed to one of the 12 sides (the cutting edge 111 side in the illustrated example). By fitting the transport holes 25 of the carrier tape 21 into these positioning pins 113, accurate position,
The inclination allows the carrier tape 21 to be cut.

In the cutting device 110 according to this embodiment, the frosted portion 95 (see FIG. 10) is formed on the cutting blade 112 on the side opposite to the cutting blade 111 to which the positioning mechanism 114 is fixed.
A matte portion forming mechanism 116 for forming (see (a)) on the carrier tape 21 is provided. The positioning mechanism 114 is extended from the side of the cutting blade 111 to form a pressing base 117.

The matte portion forming mechanism 116 is used for the paint container 1
18 and a coating section 119, the matte coating material stored in the coating material container 118 is guided to the coating section 119 through a conduit. The cutting device 110 is configured in this way, and when the carrier tape 21 is cut, the carrier tape 21 is sandwiched between the matting portion forming mechanism 116 and the pressing base 117, and the coating portion 119 is pressed onto the carrier tape 21 to make the matting portion 95. To form. As a result, the matte portion 95 can be formed in the vicinity of the cut portion 20 at the same time as the cutting without providing a separate process, which is efficient.

In FIG. 12, a carrier tape cutting device 11
Although an example in which the matte portion 95 is formed at 0 is shown, the notch blade 107 as shown in FIG. 11 is provided instead of the matte portion forming mechanism 116, and the punching hole 108 is also provided at the presser base 117. For example, the notch 51 can be formed in the carrier tape 21 by using the cutting device 110. The projecting portion 61 or the bent portion 61 can be formed as in the above example. On the contrary, also in the coupling device 40a shown in FIG. 11, it is possible to form the matte portion 95 instead of the notch blade 51 by including the matte portion forming mechanism 116 as shown in FIG.

Instead of using the coating section 119 as shown in FIG. 12 to apply the matte coating, the coating section 119 is modified to have a matte surface or metal on the carrier tape 21 when the carrier tape 21 is cut. A tape having a mirror surface may be attached. When the carrier tape 21 has a matte surface, the forming mechanism 1
It is preferable to use 16 to form a glossy portion on the surface of the carrier tape 21 instead of a matte portion to provide a difference in the amount of reflected light.

Note that FIG. 12 shows a cutting device 110 of the type that forms a jagged cut surface. By forming the cut surfaces in a corrugated shape in this manner, it is possible to eliminate a lateral shift when the new and old carrier tapes 21a and 21b are attached to each other. Further, if the top tape 24 in the connecting portion 20 is formed so as to be peeled off from the apex portion of the notch, the carrier tape 21 is cut linearly and the top tape 24 is peeled off simultaneously in a horizontal line at the connecting portion 20. It is also preferable because it has the advantage that it can be peeled off more easily than the start of stripping.

[0086]

By implementing the component supplying method or component supplying apparatus according to the present invention, it becomes possible to easily detect the connecting portion of the carrier tape by utilizing the identification portion provided on the carrier tape, and the wrong carrier is used. It is possible to prevent erroneous component mounting due to tape connection. Also, the replacement of the carrier tape can be easily known by detecting the replacement operation of the reel that is replaced when the carrier tape is connected.

Further, a discriminator for detecting the joint portion of the carrier tape according to the present invention is provided with a discriminator forming mechanism for forming the discriminator on the carrier tape at the same time as the joint operation, or at the same time as the carrier tape cutting operation. By implementing a cutting device having an identification forming mechanism to form, notches, protrusions, folds, frosted parts, bright parts, etc. that constitute the identification part are efficiently formed without requiring additional steps. Therefore, it is possible to realize efficient detection of the connecting portion. Further, since the identification portion is formed in the step of pressing the connector, which is always performed in the operation of connecting the carrier tapes, or the step of cutting the carrier tape, the operator forgets the work as compared with the case where the identification portion is formed in another step, Work mistakes can be eliminated, and reliable detection of the connecting portion can be realized without imposing a work burden on the operator.

[Brief description of drawings]

FIG. 1 is a perspective view showing a cutout portion formed in a carrier tape according to an embodiment of the present invention and a detection device for detecting the cutout portion, and an explanatory view showing an example of the shape of the cutout portion. .

FIG. 2 is an explanatory diagram showing another aspect of the cutout portion detection device shown in FIG.

FIG. 3 is a perspective view showing another detection device for detecting the cutout portion formed in the carrier tape according to the embodiment of the present invention.

FIG. 4 is a perspective view showing a detection device for detecting a protrusion (a) and a bent portion (b) formed on the carrier tape according to the embodiment of the present invention.

FIG. 5 is a side view showing a detection unit for detecting reel replacement according to another embodiment of the present invention.

FIG. 6 is a side view showing another detection unit for detecting reel replacement according to another embodiment of the present invention.

FIG. 7 is a graph comparing reflected light amounts of various connecting tapes for connecting carrier tapes.

FIG. 8 is a graph comparing the amounts of reflected light of the one connecting tape shown in FIG. 7 attached to various carrier tapes.

FIG. 9 is a cross-sectional view showing various configurations of a connecting tape for connecting carrier tapes.

FIG. 10 is a perspective view and a side view showing a detection device for detecting a matte portion or a bright portion formed on a carrier tape according to still another embodiment of the present invention.

FIG. 11 is a perspective view showing a carrier tape connecting device including an identification portion forming mechanism according to still another embodiment of the present invention.

FIG. 12 is a perspective view showing a carrier tape cutting device including an identification portion forming mechanism according to still another embodiment of the present invention.

FIG. 13 is a perspective view showing an outline of a component mounting apparatus.

FIG. 14 is a perspective view showing a component supply device to which a reel is attached.

FIG. 15 is a perspective view showing the configurations of a reel and a carrier tape wound on the reel.

FIG. 16 is a side view showing a carrier tape being conveyed in the component supply device.

FIG. 17 is a perspective view showing a connecting device for connecting carrier tapes.

FIG. 18 is a cross-sectional view showing the carrier tape in a connected state.

[Explanation of symbols]

11. Parts cassette, 12. Parts, 20. Connection part, 21. Carrier tape, 23. Base tape,
24. Top tape, 25. Transport hole, 26. Reel, 28. Embossing section, 29. A label, 30. Transport path, 35. Connector, 36. Transport hole, 37. Caulking claw, 38. Connecting tape, 40. Coupling device, 4
1. Connecting work table, 47. Pressing part, 50. Detection unit,
51. Notch, 59. Pit, 61. Ridge,
62. Folded portion, 71. Reel box, 7
2. Reel holder, 107. Notch blade, 108.
Punched holes, 110. Cutting device, 111. Cutting blade,
112. Cutting blade, 114. Positioning mechanism, 116.
Matte formation mechanism

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kiyoshi Imai             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. F-term (reference) 3E096 AA06 BA08 CA15 DA13 FA40                       GA14 GA20                 5E313 AA03 AA18 AB10 CC04 DD02                       DD03 DD32 DD34 EE02 EE24                       FG10

Claims (39)

[Claims] 1. A component supply method in which a carrier tape containing a large number of components arranged at regular intervals is wound on a reel, the carrier tape is pulled out from the reel, and the components are sequentially supplied to a component mounting apparatus. When connecting another carrier tape to a tape, the connecting portion can be detected by forming an identifying portion that can identify the connecting portion on at least one of the carrier tapes. Method. 2. The component supply method according to claim 1, wherein the identification portion formed on the carrier tape is any one of a cutout portion, a bent portion, and a protruding portion. 3. A carrier tape which is conveyed in a substantially horizontal shape is twisted by about 90 ° with respect to an axis in the conveying direction, and the identifying portion is detected from a substantially vertical direction.
The parts supply method described in. 4. The component according to claim 3, wherein when the carrier tape is transported toward the component mounting device, a component supply device of a type that transports a plurality of carrier tapes in parallel is used. Supply method. 5. The sensor according to claim 4, wherein a plurality of sensors respectively detecting the identification portions of the plurality of carrier tapes are arranged so as to be shifted in the front-rear direction with respect to the transport direction of the carrier tapes. Part supply method described. 6. The contact member is brought into contact with a notch portion formed in the carrier tape, and the movement of the contact member is detected so that the connecting portion can be detected. Parts supply method. 7. The component according to claim 6, wherein when the carrier tape is transported to the component mounting device, a component supply device of a type that transports a plurality of carrier tapes in parallel is used. Supply method. 8. The movement of a plurality of contacts respectively contacting the notches of the plurality of carrier tapes arranged in parallel is detected by using one sensor.
The parts supply method described in. 9. The identification portion formed on the carrier tape is either a matte portion or a bright portion formed on either the surface of the carrier tape or the surface of a connecting tape that connects the two carrier tapes. The component supply method according to claim 1, wherein the component supply method is provided. 10. The matte portion has a matte finish on the surface of the connecting tape, a matte coating on the surface of the carrier tape or the surface of the connecting tape, and a matte tape is attached to the surface of the carrier tape or the surface of the connecting tape. The component supply method according to claim 9, wherein the component supply method is performed by using one of the above. 11. The component supplying method according to claim 9, wherein the connecting tape is colored in a color different from that of the carrier tape. 12. The bright portion is formed by either sticking a tape having a metallic reflective surface to the surface of the carrier tape or the connecting tape, or treating the surface of the connecting tape with a metallic reflective surface. 10. The component supply method according to claim 9, wherein: 13. A component supply method for winding a carrier tape having a large number of components arranged and stored at regular intervals on a reel, pulling out the carrier tape from the reel, and sequentially supplying the components to a component mounting apparatus. When another carrier tape is connected to a tape, the connection between the carrier tapes can be detected by detecting the operation when the reels on which the respective carrier tapes are wound are replaced from the component supply device. Parts supply method. 14. The method according to claim 13, wherein the detection of the operation when the reel is replaced is to detect the movement of the reel holder that moves or rotates while holding the reel. Parts supply method. 15. The detection of the operation when replacing the reel is to detect a movement of a reel cover that covers the reel in a state where the reel is attached to a component supply device. Part supply method described. 16. The detection of the operation when replacing the reel detects the removal of the reel wound with the one carrier tape when the reel is removed from the reel holder, or the other when the reel is attached to the reel holder. 2. The attachment of the reel wound with the carrier tape according to claim 1 is detected.
3. The component supply method described in 3. 17. A reel holder to which a reel wound with a carrier tape for arranging and accommodating a large number of components at regular intervals can be attached, a conveying means for driving and conveying the carrier tape taken out from the reel, the carrier In a component supply device, which comprises a top tape collecting means for covering the tape and protecting the stored components by peeling off and collecting the top tape, wherein the components stored in the carrier tape are sequentially supplied to a component mounting device. When another carrier tape is connected to one carrier tape, a connecting portion detecting means for detecting an identifying portion formed on at least one of the carrier tapes capable of identifying the connecting portion is further provided. Parts supply device. 18. The identification portion formed on the carrier tape includes a cutout portion, a bent portion, a protruding portion, a matte portion,
18. The bright part is any one of the bright parts.
The component supply device described in 1. 19. A contacting portion detecting means for detecting the cutout portion, a contactor formed to fit into the cutout portion, a rotatable or movable lever supporting the contactor, and the lever. And a sensor capable of detecting the movement of the carrier tape, and detects the connecting portion by detecting the rotation or movement of the lever when the contact is fitted in the cutout portion of the carrier tape by the sensor. The component supply device according to claim 18, wherein: 20. A connecting portion detecting means for detecting the protruding portion, a contactor contacting the protruding portion, a rotatable arm supporting the contactor, and a rotation of the arm can be detected. And a sensor, wherein the sensor detects the rotation of the arm when the contactor comes into contact with the protrusion of the carrier tape, thereby detecting the connecting portion. 18. The component supply device according to item 18. 21. The connecting portion detecting means for detecting the bent portion is composed of an optical sensor composed of a pair of a light emitting side and a light receiving side, and the bent portion of the carrier tape blocks the irradiation light of the optical sensor. 19. The component supply device according to claim 18, wherein the connecting portion is detected by doing so. 22. A height at which the height of the carrier tape surface with respect to the carrier path of the carrier tape is substantially constant, regardless of the presence or absence of an embossed portion for housing the component of the carrier tape and the height of the embossed portion. 22. The component supply device according to claim 19, further comprising an adjusting mechanism. 23. The component supply device according to claim 22, wherein the height adjusting mechanism is a pit formed in the carrier tape transport path along the carrier tape transport direction. 24. The connecting portion detecting means for detecting either the matte portion or the bright portion is composed of a reflection type sensor, and the distance from the reflection type sensor to the detected surface of the carrier tape is equal to that of the carrier tape. A space adjusting mechanism is provided for adjusting the thickness, the presence or absence of an embossed portion for accommodating parts of the carrier tape, and the height of the embossed portion so that the space is always constant. 18. The component supply device according to item 18. 25. The gap adjusting mechanism comprises a contactor that comes into contact with the surface to be detected of the carrier tape by its own weight or an urging force, and a sensor holder that moves in synchronization with the movement of the contactor. 25. The component supply device connecting portion detecting means according to claim 24, wherein a type sensor is fixed to the sensor holder. 26. A reel holder capable of mounting a reel wound with a carrier tape for arranging and accommodating a large number of components arranged at regular intervals; a conveying means for driving and conveying the carrier tape taken out from the reel; In a component supply device, which comprises a top tape collecting means for covering the tape and protecting the stored components by peeling off and collecting the top tape, wherein the components stored in the carrier tape are sequentially supplied to a component mounting device. The component supply device further comprising a detection means for detecting replacement of the reel on which each of the carrier tapes is wound when connecting one carrier tape to another carrier tape. 27. The detecting means for detecting the exchange of the reel is a detecting means for detecting a movement of a reel holder which rotates or moves between a reel loading position and a reel exchange position while holding the reel. Characterized by that
The component supply device according to claim 26. 28. The detecting means for detecting the exchange of the reel either takes out the reel from a reel holder portion which holds the reel at a loading position or attaches the reel to the loading position of the reel holder portion. 27. The component supply device according to claim 26, which is a detecting means for detecting the movement of the reel. 29. The component supply device according to claim 27 or 28, wherein the reel holder part is separated from the component supply device and arranged in the vicinity of the component supply device. . 30. The means for detecting the exchange of the reels comprises a rotatable or movable lever provided on the component supply device side, a reel holder for a cart arranged in the vicinity of the component supply device, and the reel holder. A wire connecting between the lever and a sensor for detecting the movement of the lever is formed, and the movement of the reel holder is converted into rotation or movement of the lever via the wire, and the movement of the lever is 30. The component supply device according to claim 29, wherein movement of the reel holder is detected by detecting with a sensor. 31. The detection means for detecting the exchange of the reel comprises a reel cover for covering the reel in a state where the reel is loaded in the component supply device, and a sensor for detecting the movement of the reel cover. 29. The component supply device according to claim 28, wherein replacement of the reel is detected by detecting movement of the cover with the sensor. 32. A workbench including a positioning mechanism that positions and holds a pair of carrier tapes to be connected, and a pressing portion that applies a pressing force to the workbench. A carrier tape for connecting the pair of carrier tapes in which a large number of components are arranged and housed at regular intervals by stacking the pair of carrier tapes that are positioned and held and a connector having a caulking claw and pressing the connector by the pressing portion. In the connecting device, the connecting device performs the pressing operation, and at the same time, an identifying portion forming mechanism that provides an identifying portion capable of detecting the connecting portion of the pair of carrier tapes on at least one of the pair of carrier tapes. A connecting device characterized by being provided. 33. The identifying portion forming mechanism forms any of a cutout portion, a bent portion, a protruding portion, a matte portion, and a bright portion in the vicinity of the connecting portion of the carrier tape. 33. The coupling device of claim 32. 34. The discriminating portion forming mechanism includes a notch blade or a convex shape on one of the work table and the pressing portion, and a notch blade or a convex shape corresponding to the notch blade on the other side. 34. Coupling device according to claim 33, characterized in that it is provided with a corresponding recess. 35. The discriminating portion forming mechanism is characterized in that the pressing portion is provided with a matte coating portion, and the workbench is provided with a holding table corresponding to the matte coating portion.
The connection device according to item 3. 36. One of a pair of cutting blades for cutting a carrier tape in which a large number of components are arranged and housed at regular intervals and a pair of cutting blades for positioning and holding the carrier tape are provided. A carrier tape cutting device configured to include a positioning mechanism and cutting the carrier tape positioned and held by the positioning mechanism by the pair of cutting blades, wherein the cutting device is another carrier tape at a cutting position of the carrier tape. A cutting device comprising an identification part forming mechanism for forming an identification part, which can detect a connecting part at the time of connection, on the carrier tape at the same time when the carrier tape is cut. 37. The identifying portion forming mechanism forms any one of a cutout portion, a bent portion, a protruding portion, a matte portion, and a bright portion in the vicinity of the cut portion of the carrier tape. 37. The cutting device according to claim 36. 38. The identification portion forming mechanism corresponds to one of the pair of cutting blades with a notch blade or a convex shape, and to the other with a notch blade corresponding to the notch blade or the convex shape. 38. The cutting device according to claim 37, characterized in that it is provided with a concave mold. 39. The discriminating portion forming mechanism is characterized in that one of the pair of cutting blades is provided with a matte coating portion, and the other is provided with a presser base corresponding to the matte coating portion. The coupling device according to claim 37.