JP6445592B2 - Carrier tape cutting device, cutting method, and carrier tape supply method - Google Patents

Description

  The present invention relates to a carrier tape cutting device, a cutting method, and a carrier tape supply method for cutting a carrier tape at a predetermined position.

  The base tape of the carrier tape sent by the tape feeder has a large number of component storage portions for storing components, and a cover tape for closing these component storage portions is bonded to the base tape. For this reason, the tape feeder is provided with a peeling device for peeling the cover tape from the base tape. Then, the cover tape is peeled off by the peeling device to open the component storage portion, so that the component supplied to the component supply position can be sucked by the suction nozzle. This type of tape feeder is described in Patent Document 1, for example.

  Generally, the peeling device is designed to peel the cover tape from the base tape by inserting a peeling member between the cover tape and the base tape from the front end side of the moving carrier tape. When peeling the cover tape, the leading edge of the peeling member does not enter well between the base tape and the cover tape, and the carrier tape is sent without peeling the cover tape, or the leading edge of the peeling member bites into the base tape. May occur.

  That is, as shown in FIG. 15, since the carrier tape 100 is cut in the direction of the arrow by the cutting blade of the cutting device, the edge portion 100a on the cover tape 102 side adhered to the surface of the base tape 101 is cut by this cutting. It will be crushed in the shape of an arc, and for this reason, the leading end of the peeling member cannot be entered well between the base tape 101 and the cover tape 102.

  As described in Patent Document 2, as a solution to such a problem, by using a cutting device having a special configuration including the pressing member 20, the base tape 304 is plastically deformed into a concave shape, It is known that a recess (gap) 304e into which a peeling member enters is formed between a base tape 304 and a top tape (cover tape) 306.

JP 2014-127517 A JP 2014-157932 A

  However, in the thing of patent document 2, there exists a problem which the structure of a cutting device becomes complicated, and also there exists a problem which cannot respond to the carrier tape from which the pitch of a components storage part differs.

  The present invention has been made in order to solve the above-described problems. By improving the cutting method for cutting the carrier tape, the peeling member can smoothly enter between the base tape and the cover tape. It is an object of the present invention to provide a carrier tape cutting device, a cutting method, and a carrier tape supply method.

In order to solve the above problems, the present invention is characterized in that a component storage portion for storing a component and a base tape in which feed holes are formed at regular intervals, and a surface side of the base tape so as to cover the component storage portion A carrier tape cutting device having a cutting portion for cutting a carrier tape having a cover tape bonded to a predetermined position, wherein the cutting portions are relatively movable in a direction perpendicular to the longitudinal direction of the tape. A cutting blade portion, one of the cutting blade portions exerts a shearing force from the base tape side of the carrier tape on the side to be used after cutting, and the other is the carrier on the side discarded after cutting. A shearing force is applied from the cover tape side of the tape, and the carrier tape is attached to the positioning holding member provided on one of the pair of cutting blade portions. A swiveling member for positioning and holding the tape is supported so as to be able to swivel about an axis parallel to the longitudinal direction of the tape, and the swiveling member includes a plurality of positioning pins that engage with a feed hole formed in the base tape, The positioning tape is used to position and hold the carrier tape so that the cover tape faces upward, and when the carrier tape is cut, the turning member is turned 180 degrees so that the cover tape faces downward. .

  According to the above-described invention, the edge portion on the cover tape side is cut in a direction perpendicular to the longitudinal direction of the tape without being crushed in an arc shape, and the base tape and the cover of the carrier tape fed by the tape feeder It becomes possible to allow the peeling member of the peeling device to smoothly enter between the tape and the tape.

It is a figure which shows the tape feeder suitable for implementation of this invention. It is an enlarged view which shows the tape insertion part of a tape feeder. It is a figure which shows the operation state of FIG. It is a figure which shows the peeling apparatus attached to the tape feeder. It is a top view of the carrier tape inserted in a tape feeder. It is a figure which shows the cutting | disconnection site | part of a carrier tape. It is a figure which shows the cutting device which cut | disconnects a carrier tape. It is a figure which shows the operation state of FIG. It is a figure which shows the positioning holding | maintenance part of a cutting device. It is a figure which shows the state which attached the carrier tape to the positioning holding | maintenance part. It is a figure which shows the blade edge | tip of the blade part of a cutting device. It is a figure which shows the cut surface of the carrier tape cut | disconnected by the cutting device. It is a schematic diagram which shows the cutting device of another embodiment of this invention. In another embodiment, it is explanatory drawing which positions the cutting site | part of a carrier tape in a tape cutting position. It is a figure which shows the cut surface of the conventional carrier tape.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a tape feeder 21 that is detachably attached to a component supply device of a component mounting machine, and a carrier tape 100 (see FIGS. 2 and 3) is conveyed by the tape feeder 21.

  The carrier tape 100 is in the form of a strip formed with a predetermined width, and a large number of components such as electronic components are stored at intervals. As shown in FIG. 5, the carrier tape 100 is composed of a base tape 101 and a cover tape 102.

  The base tape 101 is made of a flexible material such as paper or resin. In the center portion of the base tape 101 in the width direction, there is formed a component storage portion 101a that stores components with a constant interval in the tape longitudinal direction. On one end side in the width direction of the base tape 101, feed holes 101b are formed at a constant pitch interval, and these feed holes 101b are arranged in a fixed positional relationship with the component storage portion 101a.

  Both side portions of the cover tape 102 in the width direction are bonded to both side portions of the upper surface of the base tape 101 by adhesive materials 102a and 102b, and normally the upper portion of the component storage portion 101a is closed to prevent components from popping out. The cover tape 102 is made of a transparent polymer film.

  As shown in FIGS. 1 and 2, the tape feeder 21 mainly includes a feeder body 21b, a first servo motor 22, a second servo motor 23, a first gear 24, a second gear 25, a third gear 26, a first gear 26, and a second gear 26. Four gears 27, levitation preventing member 28, torsion spring 29, stopper member 31, upstream side pressing member 32, downstream side pressing member 33, first sprocket 61, second sprocket 62, third sprocket 63, fourth sprocket 64, rail 38, the control part 39, and the peeling apparatus 70 are comprised. The tape feeder 21 is detachably attached to a component supply device of a component mounting machine. FIG. 1 is a view in which the side wall of the feeder main body 21b is removed so that the internal structure of the tape feeder 21 can be visually recognized.

  The rail 38 is provided from the rear insertion portion 21d of the feeder main body 21b to the front component supply position 21a. The upper surface of the rail 38 forms a conveyance path for the carrier tape 100. The front portion 38a of the rail 38 is formed horizontally. The rail 38 is inclined so as to gradually increase from the rear part to the front part of the front part 38a. Although not shown, guide members are provided on both sides of the rail 38 so as to be separated by a dimension slightly larger than the width dimension of the carrier tape 100.

  The first sprocket is located in the feeder main body 21b below the front portion 38a of the rail 38, that is, at a position adjacent to the component supply position 21a of the feeder main body 21b from the front to the rear (from the downstream side in the transport direction to the upstream side). 61 and the second sprocket 62 are rotatably provided. A third sprocket 63 and a fourth sprocket 64 are rotatably provided on the feeder main body 21b below the rear portion of the rail 38 from the front to the rear, respectively. A first engagement protrusion 61a, a second engagement protrusion 62a, and a third engagement protrusion 63a are formed on the outer periphery of each of the first sprocket 61, the second sprocket 62, and the third sprocket 63 at a predetermined angle. Has been. A fourth engagement protrusion 64 a is provided at a certain angle on a part of the outer periphery of the fourth sprocket 64. Each of the engagement protrusions 61 a to 64 a engages with the feed hole 101 b of the carrier tape 100.

  A first sprocket gear 61b, a second sprocket gear 62b, a third sprocket gear 63b, and a fourth sprocket gear 64b are formed inside the outer periphery of the first sprocket 61 to the fourth sprocket 64, respectively. A window hole 38b (see FIG. 2) is provided above the sprockets 61 to 64 of the rail 38. The engagement protrusions 61a to 64a protrude from the rail 38 from the window hole 38b.

  The first servo motor 22 is a servo motor that rotates the first sprocket 61 and the second sprocket 62. A first drive gear 22 b is provided on the rotation shaft 22 a of the first servo motor 22. The first gear 24 is rotatably provided on the feeder body 21 b below the first sprocket 61 and the second sprocket 62. A first outer gear 24 a that meshes with the first drive gear 22 b is formed on the outer periphery of the first gear 24. A first inner gear 24 b is formed inside the outer periphery of the first gear 24.

  The second gear 25 is rotatably provided in the feeder body 21 b between the first sprocket 61 and the second sprocket 62 and the first gear 24. The second gear 25 meshes with the first sprocket gear 61b, the second sprocket gear 62b, and the first inner gear 24b. With such a configuration, the rotation of the first servo motor 22 is decelerated and transmitted to the first sprocket 61 and the second sprocket 62, and the first sprocket 61 and the second sprocket 62 rotate in synchronization.

  The second servomotor 23 is a servomotor that rotates the third sprocket 63 and the fourth sprocket 64. A second drive gear 23 b is provided on the rotation shaft 23 a of the second servomotor 23. The third gear 26 is rotatably provided on the feeder main body 21 b below the third sprocket 63 and the fourth sprocket 64. A third outer gear 26 a that meshes with the second drive gear 23 b is formed on the outer periphery of the third gear 26. A third inner gear 26 b is formed inside the outer periphery of the third gear 26.

  The fourth gear 27 is rotatably provided on the third sprocket 63 and the feeder body 21 b between the fourth sprocket 64 and the third gear 26. The fourth gear 27 meshes with the third sprocket gear 63b, the fourth sprocket gear 64b, and the third inner gear 26b. With such a configuration, the rotation of the second servo motor 23 is decelerated and transmitted to the third sprocket 63 and the fourth sprocket 64, and the third sprocket 63 and the fourth sprocket 64 and the like rotate in synchronization.

  The downstream pressing member 33 is provided in the insertion portion 21d of the feeder main body 21b above the rear portion of the rail 38. The downstream pressing member 33 is attached to the first support member 30-1 and the second support member 30-2 attached to the feeder main body 21b via the shaft 34-1 so as to be movable in the vertical direction. A coil spring 35-1 that urges the downstream pressing member 33 downward is attached to the shaft 34-1. In front of the downstream pressing member 33, a pressing portion 33 d that contacts the rail 38 on the third sprocket 63 is formed. With such a configuration, the pressing portion 33d is separated from the rail 38. As shown in FIG. 2, an intrusion portion 33b is formed in the lower portion of the rear end of the pressing portion 33d.

  The upstream pressing member 32 is provided along the upper surface of the rear portion of the rail 38. The upstream side pressing member 32 is attached to the lower side pressing member 33 from the rear part downward via a shaft 34-2 so as to be movable in the vertical direction. The upstream pressing member 32 is adjacent to the rear of the pressing portion 33d. A coil spring 35-2 that urges the upstream pressing member 32 downward is attached to the shaft 34-2. With such a configuration, the upstream holding member 32 is separated from the rail 38. An insertion recess 32 a is formed in the lower part of the rear end of the upstream holding member 32.

  As shown in FIG. 2, the stopper member 31 is provided adjacent to the downstream side of the upstream pressing member 32. The stopper member 31 is swingable with a shaft support portion 31b formed at an intermediate portion thereof being pivotally supported by the downstream pressing member 33. An abutting portion 31a that protrudes downward is formed at a lower portion of the stopper member 31 in front of the shaft support portion 31b. The rear end of the lower portion of the stopper member 31 is a stop portion 31c.

  A spring 36 that urges the stopper member 31 in a direction in which the contact portion 31 a approaches the rail 38 is attached to the downstream pressing member 33. The top part of the fourth sprocket 64 is located between the front end of the downstream pressing member 33 and the rear end of the stopper member 31 (see FIG. 2).

  The levitation preventing member 28 is provided along the rail 38 between the third sprocket 63 and the second sprocket 62. A shaft support portion 28a is formed at the front end of the levitation prevention member 28. The shaft support portion 28a is supported by a shaft portion 21c provided in the feeder main body 21b so that the levitation prevention member 28 can swing. Is attached. A guide portion 28 b bent upward is formed at the rear end of the levitation preventing member 28. The torsion spring 29 is attached to the feeder main body 21b above the anti-floating member 28 and urges the anti-floating member 28 downward. By this torsion spring 29, the lower surface of the levitation preventing member 28 is in close contact with the upper surface of the rail 38. A space 38 c is formed on the rail 38 between the second sprocket 62 and the third sprocket 63.

  The control unit 39 controls the tape feeder 21 and controls the rotation of the first servo motor 22 and the second servo motor 23. The control unit 39 includes a microprocessor and a driver that supplies a drive current to the servo motors 22 and 23.

  A feeder main body 21 b on the downstream side of the third sprocket 63 is provided with a first sensor 65 that detects the presence or absence of the carrier tape 100 and outputs a detection signal to the control unit 39. The first sensor 65 is a sensor that detects a boundary portion between the two carrier tapes 100. The feeder main body 21 b on the upstream side of the second sprocket 62 is provided with a second sensor 66 that detects the presence or absence of the carrier tape 100 and outputs a detection signal to the control unit 39.

  The carrier tape 100 includes a plurality of types having different pitches of the component storage portions 101a, and the pitch interval of the component storage portions 101a differs depending on the type of the carrier tape 100, as will be described later. Therefore, the type of the carrier tape 100 can be determined by detecting the pitch interval of the component storage unit 101a.

  As shown in FIG. 4, an attachment block 71 having a peeling device 70 for peeling the cover tape 102 from the base tape 101 of the carrier tape 100 sent to the component supply position 21a is provided at the tip of the feeder body 21b. It is detachably attached to the feeder main body 21b. The peeling device 70 includes a peeling member 72 that peels the cover tape 102 and a folding member 73 that raises one end of the peeled cover tape 102 and turns it back. The peeling device 70 can peel the cover tape 102 from the base tape 101 by the peeling member 72, supply the cut end portion (cut portion CU) of the carrier tape 100 to the component supply position 21a, and take out the component from the component storage portion 101a. Set as follows.

  Next, the operation of the tape feeder 21 will be described. The operator inserts the carrier tape 100 between the insertion recess 32a and the rear end of the rail 38 shown in FIG. Then, the fourth engagement protrusion 64 a engages with the feed hole 101 b formed at the tip of the inserted carrier tape 100, and the carrier tape 100 is conveyed to the third sprocket 63 by the fourth sprocket 64. Since the fourth engagement protrusion 64a is formed only on a part of the outer periphery of the fourth sprocket 64, the fourth engagement protrusion 64a is engaged with the feed hole 101b formed at the tip of the inserted carrier tape 100. When this occurs, the carrier tape 100 intermittently moves to the third sprocket 63 side. For this reason, since the carrier tape 100 is not suddenly pulled into the third sprocket 63 side, it is safe.

  The tip of the carrier tape 100 fed downstream by the fourth sprocket 64 enters the lower part of the pressing part 33d from the intrusion part 33b. Then, when the feed hole 101 b formed in the leading portion of the carrier tape 100 is engaged with the third engagement protrusion 63 a, the carrier tape 100 is conveyed to the second sprocket 62 by the third sprocket 63. Since the third engagement protrusion 63a is formed on the entire outer periphery of the third sprocket 63, the carrier tape 100 is transported to the second sprocket 62 side in a short time. The carrier tape 100 is pressed from above by the pressing portion 33d so that the engagement between the feed hole 101b and the third engagement protrusion 36a is not released.

  The leading end of the carrier tape 100 enters under the levitation preventing member 28 from between the guide portion 28 b and the rail 38. The tip of the carrier tape 100 is transported to the second sprocket 62 with the floating prevention member 28 restraining the lift from the rail 38.

  When the second sensor 66 detects the head of the carrier tape 100 conveyed by the third sprocket 63, the first servo motor 22 and the second servo motor 23 rotate the sprockets 61 to 64 intermittently by the component pitch. When the feed hole 101b formed in the leading portion of the carrier tape 100 is engaged with the second engagement protrusion 62a, the carrier tape 100 is fed to the peeling device 70 by the second sprocket 62, and the carrier by the peeling member 72 of the peeling device 70. The cover tape 102 is peeled from the tape 100. When the feed hole 101b formed at the top of the carrier tape 100 is engaged with the first engagement protrusion 61a, the components stored in the carrier tape 100 are sequentially positioned and supplied to the component supply position 21a by the first sprocket 61. Is done.

  When the carrier tape 100 being transported (preceding) is transported by the tape feeder 21, the carrier tape 100 presses the contact portion 31a as shown in FIG. The stop portion 31 c swings in the direction approaching the rail 38 against the urging force, and the rear lower end of the stopper member 31 contacts the upper surface of the carrier tape 100.

  The operator inserts the subsequent carrier tape 100 between the insertion recess 32a and the upper surface of the carrier tape 100 to be punched. Then, since the rear lower end of the stopper member 31 is in contact with the upper surface of the preceding carrier tape 100, the leading end of the subsequent carrier tape 100 comes into contact with the stop portion 31c of the stopper member 31, as shown in FIG. The downstream carrier tape 100 is prevented from being conveyed downstream, and the subsequent carrier tape 100 waits on the preceding carrier tape 100.

  The subsequent carrier tape 100 is pressed against the preceding carrier tape 100 by the upstream pressing member 32. For this reason, the leading edge of the subsequent carrier tape 100 is prevented from being lifted from the preceding carrier tape 100, and the leading edge of the upstream carrier member 100 at the leading edge of the subsequent carrier tape 100 and the rear end of the stopper member 31 are prevented. Intrusion is prevented.

  As shown in FIG. 3, when the trailing end of the preceding carrier tape 100 is transported downstream from the leading end of the succeeding carrier tape 100, the succeeding carrier tape 100 is placed on the rail 38. A feed hole 101b formed in the leading portion of the subsequent carrier tape 100 engages with the fourth engagement protrusion 64a. And the front-end | tip of the carrier tape 100 fed with the 4th sprocket 64 penetrate | invades below the holding | suppressing part 33d from the penetration part 33b. When the feed hole 101b formed in the leading portion of the carrier tape 100 is engaged with the third engagement protrusion 63a, the carrier tape 100 is conveyed to the second sprocket 62 by the third sprocket 63, and the parts are supplied as described above. It is conveyed to position 21a.

  When the leading end of the carrier tape 100 in standby presses the contact portion 31a, the stopper member 31 resists the biasing force of the spring 36, and the stop portion 31c swings in the direction approaching the upper surface of the rail 38, thereby stopping the stopper member. The rear lower end of 31 comes into contact with a new carrier tape 100 (old standby tape 920).

  Next, an example of the cutting device 130 that cuts the leading end portion of the carrier tape 100 at a predetermined position will be described with reference to FIGS. As shown in FIGS. 7 and 8, the cutting device 130 includes a scissor-shaped cutting portion having a first member 133 and a second member 134 that are pivotally supported by a pivot shaft 131. The cutting portion includes a pair of cutting blade portions 135 and 136 formed at the tip portions of the first and second members 133 and 134, and the carrier tape 100 is positioned on one of the cutting blade portions 135 and 136 (136). A positioning / holding portion 137 to be held is integrally attached by a bolt or the like.

  As shown in detail in FIG. 11, the pair of cutting blade portions 135 and 136 are respectively provided with blade edges 135a and 136a having acute angles at their tips, and are slidably movable at one end in the tape longitudinal direction of the blade edges 135a and 136a. The contacting vertical surfaces 135a1 and 136a1 are formed perpendicular to the tape longitudinal direction.

  As shown in detail in FIGS. 9 and 10, the positioning holding portion 137 includes a base block 138 fixed to the outer surface of the cutting blade portion 136, and an axis line of the pivot shaft 139 parallel to the pivot block 131 on the base block 138. And a turning member 140 supported so as to be able to turn around the head. In addition, the base block 138 has a support surface 138a perpendicular to the relative movement direction of the pair of cutting blade portions 135 and 136, and at the tip of the support surface 138a, that is, on the tip side of the cutting blade portions 135 and 136, A shaft support portion 138b that supports the pivot shaft 139 is provided.

  The swivel member 140 is supported so as to be rotatable around the pivot shaft 139 and movable in the axial direction of the pivot shaft 139, and is normally deployed on the front end side of the cutting blade portions 135 and 136. A tape placement surface 140a for placing the tape 100 face up with the cover tape 102 facing upward is formed. Two positioning pins 141 for positioning the carrier tape 100 in the tape longitudinal direction by engaging with the feed hole 101b of the carrier tape 100 are provided on the tape placement surface 140a with a predetermined interval.

  The swivel member 140 is moved in the axial direction along the pivot shaft 139 so that the cutting part CU can be changed according to the type of the carrier tape 100 (pitch of the component storage unit 101a), and can be positioned at two positions. Yes. Specifically, in the case of the carrier tape 100 having a pitch of 4 mm (P = 4), which is the same as the pitch of the feed holes 101b, as shown in FIG. It is positioned so as to be at the center position of the component storage portion 101a and the feed hole 101b. In the case of the carrier tape 100 in which the pitch of the component storage portion 101a is ½ the pitch (P = 2) of the pitch of the feed holes 101b, as shown in FIG. Positioned so as to be an intermediate position of the portion 101a.

  On the tape placement surface 140a of the swivel member 140, characters P = 2 and P = 4 indicating the switching position corresponding to the pitch of the component storage unit 101a are engraved. Then, as shown in FIG. 10, if the turning member 140 is positioned at a position where P = 2 is aligned with the mark M given to the base block 138 side, the carrier tape 100 is cut at the cutting site shown in FIG. The CU is positioned at a position corresponding to the vertical surfaces 135a1 and 136a1 of the cutting blade portions 135 and 136. Further, if the swiveling member 140 is positioned at a position where P = 4 matches the mark M, the carrier tape 100 has the cutting portion CU shown in FIG. 6A on the vertical surfaces 135a1 and 136a1 of the cutting blade portions 135 and 136. Positioned at the corresponding position.

  Although not shown, the pivot member 140 can be positioned and held at two positions by engaging a notch biased by a spring with an engagement recess of the pivot shaft 139.

  When cutting the front end portion of the carrier tape 100 at a predetermined position, the carrier tape 100 is positioned on the tape placement surface 140a of the turning member 140 with the front side (the cover tape 102 side) of the carrier tape 100 facing upward. The pins 141 are positioned and placed. At this time, the front end side discarded by cutting is placed on the tape mounting surface 140a of the turning member 140, and the side to be used after cutting extends to the opposite side of the turning member 140 with the cutting blade portions 135 and 136 interposed therebetween. Mounted.

  The swiveling member 140 is swung upward (in the direction of the arrow in FIG. 8) about the pivot shaft 139 with the carrier tape 100 positioned and held on the tape placement surface 140a. Then, when the turning member 140 is turned 180 degrees, the carrier tape 100 is changed in posture so that the cover tape 102 faces downward and is sandwiched between the base block 138 and the turning member 140. At the same time, the cutting portion CU of the carrier tape 100 is positioned between the pair of cutting blade portions 135 and 136.

  By operating the grip portions 143 and 144 provided at the other end portions of the first and second members 133 and 134 in a state where the carrier tape 100 is sandwiched between the base block 138 and the turning member 140, a cutting blade The portions 135 and 136 are relatively moved in a direction intersecting the tape longitudinal direction, and the leading end portions of the carrier tape 100 are cut at the cutting portion CU by the blade edges 135a and 135b of the cutting blade portions 135 and 136. That is, the end of the carrier tape 100x to be used after cutting (see FIG. 11B) is cut by the vertical surface 135a1 of the cutting edge 135a of one cutting blade 135 that moves downward from the upper position of the carrier tape 100. The end of the carrier tape 100y (see FIG. 11B) on the side discarded after cutting is cut by the vertical surface 136a1 of the cutting edge 136a of the other cutting blade 136 that moves upward from the lower position of the carrier tape 100. Disconnected.

  At this time, as shown in FIG. 11A, the vertical surface 135a1 of the cutting edge 135a of the cutting blade portion 135 that moves downward coincides with the cutting portion of the carrier tape 100x on the side to be used after cutting, and the carrier tape 100 Since it moves in the direction perpendicular to the longitudinal direction of the tape so as to enter from the back surface side (base tape 101 side opposite to the cover tape 102) of the (base tape 101), the cut surface of the carrier tape 100x on the side used after cutting 11B and FIG. 12, the edge portion 100b on the back surface side of the carrier tape 100 is crushed and formed into an arc shape, but the edge on the front surface side (the cover tape 102 side) of the carrier tape 100 The part 100a is cut perpendicular to the longitudinal direction of the tape.

  That is, one cutting blade portion 135 of the cutting device 130 has a strong shearing force from the base tape 101 side to the cover tape 102 side on the cut surface of the carrier tape 100x to be used after cutting, and the other is discarded after cutting. The carrier tape 100 has a structure in which a shearing force can be applied from the cover tape 102 side, so that the edge portion 100a on the cover tape 102 side is not crushed in an arc shape, but in the longitudinal direction of the tape. Cut vertically.

  In the carrier tape 100 purchased from the component manufacturer, there are empty portions where no components are stored in the plurality of component storage portions 101a arranged at the tip portion. For this reason, the carrier tape 100 can be positioned and held on the tape placement surface 140a of the swivel member 140 face up, so that the component storage portion 101a in which the component is stored and the component storage portion in which the component is not stored are visually observed by the operator. It can be easily attached so as to be a cutting part CU between 101a. Thereafter, the carrier tape 100 is inverted for cutting.

  In the above-described embodiment, the example in which the cutting device 130 for cutting the carrier tape 100 is configured by the scissor-type cutting portion having the pair of cutting blade portions 135 and 136 is described. The cutting device 130 can also be configured by at least one cutting blade that is movable in the direction. In this case, in a state where the front surface side (the cover tape 102 side) of the carrier tape 100 is seated on the fixed base, one cutting blade portion enters from the back surface side opposite to the front surface side of the carrier tape 100. do it.

  FIG. 13 and FIG. 14 show another embodiment of the cutting device 130, and shows an example in which the cutting device 130 is applied to a splicing device 200 that automatically loads and splices the carrier tape 100. .

In FIG. 13, the splicing device 200 includes a tape insertion slot 184 for inserting two carrier tapes 100 from both sides, and the inserted carrier tape 100 is cut at the tape cutting position Lc and sent to the splicing position Ls. Yes. In FIG. 13, only the configuration in which one carrier tape 100 is cut and sent to the splicing position Ls is shown, but although not shown on the right side of FIG. 13, the other carrier tape 100 is cut. A similar configuration is provided for sending to the splicing position Ls.
The splicing device 200 includes a tape transport path 160 from the tape insertion port 184 toward the splicing position Ls, and a tape feeding device 151 that transports the carrier tape 100 along the tape transport path 160. On the tape conveyance path 160, the component detection position Ld is disposed between the tape insertion port 184 and the tape cutting position Lc.

  A tape cutting position Lc is disposed on the tape conveyance path 160 between the component detection position Ld and the splicing position Ls. At the tape cutting position Lc, a cutting device 130 that cuts the leading end portion of the carrier tape 100 at a predetermined position and a take-in device 157 that takes in an unnecessary portion at the leading end are provided.

  The component detection device 153 includes, for example, a photo sensor, and includes a component storage unit 101a of the carrier tape 100 conveyed through the tape conveyance path 160, a tape portion between the component storage units 101a, and a component e in the component storage unit 101a (see FIG. 14). ) Is detected by a change in the amount of light. The detection signal of the component detection device 153 is sent to the control device 185, and the control device 185 controls the tape feeding device 151, the cutting device 130, the take-in device 157, and the like. Note that a camera can be used as the component detection device 153 instead of the photosensor.

  The tape feeder 151 includes a sprocket 161 disposed below the tape transport path 160, a stepping motor 162 as a rotating device coupled to the sprocket 161, a sprocket tooth detector 163 disposed in the vicinity of the sprocket 161, The tape detection device 164 and the like disposed above the tape conveyance path 160 are configured.

  The tape feeder 151 transports the carrier tape 100 along the tape transport path 160, and sequentially positions the carrier tape 100 at the tape cutting position Lc and the splicing position Ls.

  In the sprocket 161, a plurality of teeth 167 having the same pitch as the pitch of the feed holes 101b are formed over the entire circumference. The sprocket 161 is disposed below the tape conveyance path 160 so that the uppermost tooth 167 can mesh with the feed hole 101b of the carrier tape 100 inserted from the tape insertion port 184.

  The sprocket tooth detection device 163 detects that the sprocket 161 is positioned at the origin position by reading a mark or the like attached to the side surface of the sprocket 161. The tape detection device 164 detects that the carrier tape 100 has been inserted from the tape insertion port 184.

  The cutting device 130 includes one cutting blade portion 235 provided at the tape cutting position Lc, a cam 169 that can be slidably contacted with the cutting blade portion 235, a motor 170 connected to the cam 169, and one end of the cutting blade portion 235. Is attached, the other end is attached to the fixed part, the pressing member 172 provided adjacent to the cutting blade part 235, one end is attached to the cutting blade part 235, and the other end is the pressing member. A spring 173 and the like attached to 172 are included.

  The cutting blade portion 235 cuts the cutting portion CU of the carrier tape 100 positioned at the tape cutting position Lc, has the same configuration as the cutting blade portion 135 described above, and has a cutting edge that forms an acute angle at the tip. A vertical surface 235a1 perpendicular to the tape longitudinal direction is formed at one end of the blade edge in the tape longitudinal direction. The cutting blade portion 235 is mounted so as to be movable upward from the back surface side (base tape 101 side) of the carrier tape 100. The cam 169 of the cutting device 130 is rotated by the motor 170 to move the cutting blade portion 235 in the vertical direction. The pressing member 172 is provided so as to be movable upward so that the vicinity of the cutting portion CU of the carrier tape 100 positioned at the tape cutting position Lc is pressed from below and is seated on the fixed base 174.

  The take-in device 157 includes a take-up member 175 including a movable member 177 and a fixed member 178 that rotatably supports the moveable member 177, a drive device 176 including a solenoid that drives the moveable member 177, and the like. The movable member 177 is formed with a movable conveyance path 179 forming a part of the tape conveyance path 160 and an opening 180 for taking in an unnecessary portion at the tip of the carrier tape 100 conveyed on the tape conveyance path 160. . The movable member 177 is formed with a duct 182 for guiding the taken-in unnecessary portion to the disposal location.

  The movable member 177 is normally held at an angular position where the opening 180 is aligned with the tape conveyance path 160 (a state indicated by a two-dot chain line in FIG. 13). 179 is rotated to an angular position (a state indicated by a solid line in FIG. 13) aligned with the tape transport path 160.

  The carrier tape 100 is cut at the cutting site CU by the cutting device 130 and is transported by a predetermined amount from the tape cutting position Lc, thereby being positioned at the splicing position Ls and splicing. In addition, about the splicing of the carrier tape 100, the thing of the structure as described in the international publication 2013/157107 which concerns on this application, for example can be employ | adopted.

  Next, the operation of automatically positioning the cutting part CU of the carrier tape 100 at the tape cutting position Lc will be described. When the carrier tape 100 is inserted from the tape insertion slot 184, the insertion of the carrier tape 100 is detected by the tape detection device 164, and the stepping motor 162 is started based on this detection signal. Thus, the sprocket 161 is rotated, and the carrier tape 100 engaged with the feed hole 101b in the teeth 167 of the sprocket 161 is conveyed on the tape conveyance path 160 toward the component detection position Ld.

  When the carrier tape 100 is transported to the component detection position Ld, the type of the carrier tape 100 and the cut portion CU of the carrier tape 100 are calculated based on the detection signal of the component detection device 153.

  That is, if the detection signal (light quantity) S from the component detection device 153 including a photosensor indicates So in the tape portion between the component storage portions 101a of the carrier tape 100 as shown in FIG. In the empty component storage unit 101a, the amount of transmitted light is increased to Sa, and in the component storage unit 101a having the component e, the amount of transmitted light is decreased to Sb.

  Therefore, the rising timing t1 of the detection signal S when moving from the tape portion to the first empty component storage portion 101a and the detection signal S when moving from the tape portion to the second empty component storage portion 101a. Is detected, and the number of pulses of the stepping motor 162 that drives the sprocket 161 between time t1 and time t2 is counted. Then, by calculating the feed amount of the carrier tape 100 based on this pulse count, the pitch between the component storage portions 101a can be calculated. From this calculation result, the type of the carrier tape 100 can be grasped, and the cutting part CU of the carrier tape 100 is obtained.

  Next, the number of pulses of the stepping motor 162 between the rising time t3 and the current time t4 of the detection signal S when the component storage unit 101a storing the component e is transferred from the empty component storage unit 101a is counted. Then, by determining the feed amount of the carrier tape 100 based on this pulse count, the distance d1 between the illustrated right end position Lct of the component storage portion 101a storing the component e and the component detection position Ld can be determined. Further, the distance d2 between the illustrated right end position Lct of the component storage unit 101a in which the component e is stored and the cut portion CU of the carrier tape 100 can be obtained from the pitch Pc between the component storage units 101a.

  As a result, the carrier tape 100 is conveyed by a distance D2-d1-d2 obtained by subtracting the distances d1 and d2 from a known (designed) distance D2 between the component detection position Ld and the tape cutting position Lc. The cutting part CU of the tape 100 can be positioned at the tape cutting position Lc. As a result, the cutting portion CU of the carrier tape 100 is automatically cut by the cutting blade portion 235 of the cutting device 130.

  Also in this case, the vertical surface 235a1 of the cutting blade portion 235 moving upward coincides with the cutting portion of the carrier tape 100 on the side to be used after cutting, and enters from the back surface side (base tape 101 side) of the carrier tape 100. Thus, as in the embodiment described above, the shearing force is generated from the base tape 101 side of the carrier tape 100 to be used after cutting from the base tape 101 side to the cover tape 102 side. As shown in FIG. 12, the edge 100a on the cover tape 102 side is cut perpendicularly to the longitudinal direction of the tape, as shown in FIG.

  The carrier tape 100 cut at a predetermined position is transported to the splicing position Ls, and is automatically spliced to the leading end of the carrier tape that is inserted from the other tape insertion opening (not shown) and cut in the same manner as above. .

  According to the above-described embodiment, the base of the carrier tape 100 on the side to be used after cutting when the carrier tape 100 is cut by the cutting portion of the cutting device 130 that cuts the end of the carrier tape 100 at a predetermined position. Shearing force was applied from the tape 101 side.

  As a result, the edge portion 100a on the cover tape 102 side is cut perpendicularly to the longitudinal direction of the tape without being crushed in an arc shape, so the cover tape 102 and the base tape of the carrier tape 100 fed by the tape feeder 21 are cut. Thus, the tip of the peeling member 72 of the peeling device 70 can smoothly enter between 101 and 101.

  Further, according to the above-described embodiment, the cutting portion of the cutting device 130 includes the pair of cutting blade portions 135 and 136, and one of the cutting blade portions (135) of the carrier tape 100 on the side to be used after cutting. A shear force is applied from the base tape 101 side, and the other (136) is applied a shear force from the cover tape 102 side of the carrier tape 100 on the side discarded after cutting.

  Thereby, the edge part 100a by the side of the cover tape 102 is cut | disconnected perpendicularly | vertically with respect to a tape longitudinal direction, without crushed in circular arc shape. Accordingly, the tip of the peeling member 72 of the peeling device 70 can be smoothly entered between the cover tape 102 and the base tape 101 of the carrier tape 100 fed by the tape feeder 21, and the cover tape is not peeled off successfully. In addition, it is possible to suppress the problem that the tip of the peeling member 72 bites into the base tape 101.

  In addition, according to the above-described embodiment, the cutting unit of the cutting device 130 includes the pair of cutting blade parts 135 and 136 that can move relative to each other in the direction perpendicular to the longitudinal direction of the tape. A positioning holding portion 137 is provided on one side of 136, and a turning member 140 for positioning and holding the carrier tape 100 is supported on the positioning holding portion 137 so as to be turnable about an axis parallel to the longitudinal direction of the tape.

  As a result, when the carrier tape 100 is positioned and held on the turning member 140 face up, the operator visually observes the gap between the component storage portion 101a in which the component is stored and the component storage portion 101a in which the component is not stored. It can be easily positioned and held so as to be a cutting site.

  Furthermore, according to the above-described embodiment, the turning member 140 includes the plurality of positioning pins 141 that engage with the feed holes 101 b formed in the base tape 101, and the carrier tape 100 is moved upward by the positioning pins 141. In order to cut the carrier tape 100, the turning member 140 is turned 180 degrees so that the cover tape 102 faces downward.

  Thus, the carrier tape 100 can be accurately positioned in the longitudinal direction of the tape by the positioning pins 141, and the cutting blade portion 135 that is moved downward when the carrier tape 100 is cut is provided on the back surface of the carrier tape 100. It is possible to enter from the side (base tape 101 side).

  Further, according to the above-described embodiment, the turning member 140 is provided so as to be movable by a predetermined amount in the tape longitudinal direction with respect to the base block 138 of the positioning holding portion 137, and the carrier tape 100 according to the pitch of the component storage portion 101a. Since the cutting site can be changed, the carrier tape can be positioned at the cutting site corresponding to the plurality of types of carrier tapes 100.

  Furthermore, according to the above-described embodiment, the sprocket 161 that engages with the feed hole 101 b of the carrier tape 100, the stepping motor (rotating device) 162 that rotates the sprocket 161, and the component in the component storage portion 101 a of the carrier tape 100 And a control device 185 for controlling the stepping motor 162 so as to position the carrier tape 100 at the cutting site CU based on a detection signal from the component detection device 153.

  Thereby, based on the detection signal of the component detection apparatus 153, the carrier tape 100 can be automatically positioned so that the space between the empty component storage unit 101a and the component storage unit 101a in which the component is stored is the cut portion CU. At the same time, the carrier tape 100 can be automatically cut by the cutting device 130.

  Furthermore, according to the above-described embodiment, the carrier tape 100 is cut by applying a shearing force from the base tape 101 side of the carrier tape 100 to be used after cutting.

  As a result, the edge portion 100a on the cover tape 102 side is cut perpendicularly to the longitudinal direction of the tape without being crushed in an arc shape, so the cover tape 102 and the base tape of the carrier tape 100 fed by the tape feeder 21 are cut. The tip of the peeling member 72 of the peeling device 70 can smoothly enter between 101 and 101.

  Furthermore, according to the above-described embodiment, the carrier tape 100 is cut so that a shearing force is applied from the base tape side of the carrier tape 100 to be used after cutting, and the cut end portion of the cut carrier tape 100 is cut. Is set at the component supply position 21 a of the tape feeder 21.

  Thus, the component storage portion 101a storing the components can be reliably set in the component supply position 21a in a state where the cover tape 102 of the carrier tape 100 is securely peeled off by the peeling member 72 of the peeling device 70.

  Although the present invention has been described with reference to the embodiments, the present invention is not limited to the configurations described in the above embodiments, and does not depart from the gist of the present invention described in the claims. Various forms can be adopted within the range.

  The carrier tape cutting device, the cutting method, and the carrier tape supply method according to the present invention are suitable for use in cutting an end portion of a carrier tape fed by a tape feeder at a predetermined position.

  DESCRIPTION OF SYMBOLS 21 ... Tape feeder, 21a ... Component supply position, 70 ... Peeling device, 72 ... Peeling member, 100 ... Carrier tape, 101 ... Base tape, 101a ... Component storage part, 101b ... Feed hole, 102 ... Cover tape, 130 ... Cutting Device, 135, 136, 235 ... Cutting blade, 135a1, 136a1, 235a1 ... Vertical surface, 137 ... Positioning holding part, 138 ... Base block, 140 ... Swing member, 141 ... Positioning pin, 153 ... Component detection device, 161 ... Sprocket, 162, rotating device (stepping motor), 185, control device, 200, splicing device 200, CU, cutting site.

Claims (3)

A carrier tape comprising a base tape in which parts storage portions for storing parts and feed holes are formed at regular intervals, and a cover tape bonded to the surface side of the base tape so as to cover the parts storage portion; A carrier tape cutting device having a cutting part for cutting at a predetermined position,
The cutting part is
A pair of cutting blades that can move in a direction perpendicular to the longitudinal direction of the tape is provided, and one of the cutting blades exerts a shearing force from the base tape side of the carrier tape on the side to be used after cutting. And the other is to apply a shearing force from the cover tape side of the carrier tape on the side discarded after cutting, and
The positioning holding member provided on one of the pair of cutting blades supports a turning member for positioning and holding the carrier tape so as to be turnable about an axis parallel to the tape longitudinal direction,
The swivel member includes a plurality of positioning pins that engage with feed holes formed in the base tape, and the positioning tape holds the carrier tape so that the cover tape faces upward, and cuts the carrier tape. Sometimes, the carrier tape cutting device in which the turning member is turned 180 degrees so that the cover tape faces downward . The pivot member is disposed a predetermined amount movable with respect to the base block of the positioning holding member in the longitudinal direction of the tape, the claim was possible to change the cleavage site of the carrier tape according to the pitch of the component storages 1 The carrier tape cutting device according to 1.   A sprocket that engages with the feed hole of the carrier tape, a rotating device that rotates the sprocket, a component detection device that detects whether or not a component is stored in the component storage portion of the carrier tape, and the component The carrier tape cutting device according to claim 1, further comprising a control device that controls the rotating device so as to position a cutting portion of the carrier tape based on a detection signal of a detection device.

Images