JP2022031976A - Tape feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tape feeder which can reliably drop a component adhered to cover tape before the cover tape is removed.

SOLUTION: A tape feeder comprises: a conveyance path into which carrier tape made up of bottom tape, having a plurality of cavity parts each for housing a component, and cover tape, adhered to the bottom tape and covering the cavity parts, is inserted, and which guides at least the bottom tape to a component supply position; a tape feeding part which feeds the carrier tape along the conveyance path; a tape removing part which removes the cover tape from the bottom tape and opens the cavity parts at a removal position in front of the component supply position of the conveyance path; and a single magnetic member which is disposed under the tape removing part and changes a magnetic flux acting on the component in accordance with the position of the component in an advancing direction of the carrier tape.

SELECTED DRAWING: Figure 6

COPYRIGHT: (C)2022,JPO&INPIT

Description

The present specification relates to a tape feeder that supplies parts using carrier tape.

As anti-board working machines that produce boards on which a large number of parts are mounted, there are solder printing machines, component mounting machines, reflow machines, board inspection machines, and the like. It is common to connect these anti-board working machines to form a board production line. Many of these component mounting machines are equipped with a tape feeder that supplies components using carrier tape. The carrier tape is formed by adhering a cover tape to a bottom tape having a cavity portion. The parts housed in the cavity occasionally adhere to the cover tape. Then, when the cover tape is peeled off from the bottom tape to open the cavity portion, there is an adverse effect that the parts are damaged or the parts are dissipated. Patent Document 1 discloses a technical example relating to posture stabilization of a component housed in a cavity portion.

In the component supply device of Patent Document 1, a permanent magnet is arranged at a lower position of the component between the peeling position of the cover tape and the component supply position so that the S magnetic pole and the N magnetic pole face the component. As a result, it is said that the suction posture of the component can be stabilized at the position after the cavity portion is opened.

Japanese Unexamined Patent Publication No. 2006-186078

By the way, the technique of Patent Document 1 is preferable in that it can stabilize the suction posture of the component at the component supply position. However, in the technique of Patent Document 1, it is not possible to drop the parts attached to the cover tape before the cover tape is peeled off. In particular, if the carrier tape is stored for a long period of time, the adhesive force of the component to the cover tape tends to increase, and the component does not fall and becomes a problem.

The above-mentioned problem occurs in the structure in which only the adhesive portion on one side of the cover tape in the tape width direction is peeled off at the peeling position and the cover tape is folded back to the adhesive portion on the other side. In this structure, the parts attached to the cover tape may be damaged by the collision of the peeling blade. Further, the above-mentioned problem also occurs in the structure in which the cover tape is pulled back in the reverse direction at the peeling position to completely peel it from the bottom tape. In this structure, the parts attached to the cover tape may be dissipated when the cover tape is peeled off.

In the present specification, it is an object to be solved to provide a tape feeder capable of surely dropping a part attached to the cover tape before the cover tape is peeled off.

In the present specification, a carrier tape composed of a bottom tape having a plurality of cavities for accommodating parts and a cover tape which is adhered to the bottom tape and covers the cavities is inserted, and at least the bottom tape is provided at a component supply position. The cover tape is peeled off from the bottom tape at a transport path that guides the carrier tape to, a tape feed section that feeds the carrier tape along the transport path, and a peeling position on the front side of the component supply position of the transport path. A single magnetism that is arranged below the tape peeling portion that opens the cavity portion and changes the magnetic flux acting on the component according to the position of the component in the traveling direction of the carrier tape. Disclose a member and a tape feeder comprising.

In the tape feeder disclosed herein, a single magnetic member located below the tape peeling portion changes the magnetic flux acting on the component. Therefore, the parts attached to the cover tape are shaken by the change of the magnetic flux, and fall surely before the cover tape is peeled off at the peeling position.

It is a top view schematically showing the whole structure of the component mounting machine provided with the tape feeder of 1st Embodiment. It is a side view which shows typically the tape feeder. It is a top view explaining the structure of the tape peeling part and the peeling operation. It is a top view which showed only the carrier tape in FIG. It is sectional drawing of the carrier tape seen from the VV direction of FIG. It is a perspective view which shows the structure of the magnetic flux change part schematically. It is a side sectional view which shows the state which the component attached to the cover tape is located right above the N magnetic pole. FIG. 3 is a side sectional view showing a state in which a component attached to the cover tape is located at a position slightly past directly above the N magnetic pole. It is a side sectional view which shows the state which the component attached to a cover tape is located just above the magnetic pole boundary. It is a side sectional view which shows the state which the component attached to a cover tape is located at the position slightly passing a magnetic pole boundary. It is a top view schematically showing the magnetic flux change part of the tape feeder of 2nd Embodiment. It is a top view schematically showing the magnetic flux change part and the magnetic flux stabilization part of the tape feeder of 3rd Embodiment.

1. 1. Overall Configuration of the Component Mounting Machine 1 The tape feeder 3 of the first embodiment will be described with reference to FIGS. 1 to 10. FIG. 1 is a plan view schematically showing an overall configuration of a component mounting machine 1 including the tape feeder 3 of the first embodiment. The direction from the left side to the right side of the paper surface in FIG. 1 is the X-axis direction for transporting the substrate K, and the direction from the lower side of the paper surface to the upper side of the paper surface is the Y-axis direction (front-back direction). The component mounting machine 1 is configured by assembling a board transfer device 2, a plurality of tape feeders 3, a component transfer device 4, a component camera 51, a control device 52, and the like to the machine base 10. The board transfer device 2, each tape feeder 3, the component transfer device 4, and the component camera 51 are controlled by the control device 52, and each performs a predetermined operation.

The substrate transfer device 2 is composed of a pair of guide rails 21 and 22, a pair of conveyor belts, a substrate clamp mechanism, and the like. The conveyor belt carries the substrate K to the mounting implementation position by rotating along the guide rails 21 and 22 with the substrate K mounted. The board clamping mechanism pushes up the board K at the mounting position, clamps it, and positions it.

The plurality of tape feeders 3 are mounted side by side on the pallet base 11 on the upper surface of the machine base 10. The tape feeder 3 holds the tape reel 39 on the front side of the main body 31. The component supply position 32 is set in the upper part near the rear side of the main body portion 31. A carrier tape 8 (see FIGS. 4 and 5) is wound around the tape reel 39.

The component transfer device 4 is an XY robot type device that can move horizontally in the X-axis direction and the Y-axis direction. The component transfer device 4 includes a head drive mechanism 40, a mounting head 44, a nozzle tool 45, a suction nozzle 46, a substrate camera 47, and the like. The head drive mechanism 40 includes a pair of Y-axis rails 41 and 42, a Y-axis slider 43, and a drive motor (not shown). The Y-axis slider 43 is provided with a mounting head 44. The head drive mechanism 40 drives the mounting head 44 in the horizontal direction, that is, in the X-axis direction and the Y-axis direction.

The nozzle tool 45 is held by the mounting head 44. The nozzle tool 45 has one or more suction nozzles 46. The suction nozzle 46 uses negative pressure to suck parts. The board camera 47 is provided on the mounting head 44 alongside the nozzle tool 45. The board camera 47 captures a position reference mark attached to the board K and detects an accurate mounting position of the positioned board K.

The component camera 51 is provided upward on the upper surface of the machine base 10 between the substrate transfer device 2 and the tape feeder 3. The component camera 51 captures the state of the component sucked by the suction nozzle 46 while the mounting head 44 is moving from the tape feeder 3 to the substrate K. The control device 52 is assembled to the machine base 10, and the arrangement position thereof is not particularly limited. The control device 52 is composed of a computer device having a CPU and operating by software. The control device 52 controls the mounting operation according to the mounting sequence stored in advance.

2. 2. Configuration of Tape Feeder 3 of the First Embodiment Next, a detailed configuration of the tape feeder 3 will be described. FIG. 2 is a side view schematically showing the tape feeder 3. The tape feeder 3 includes a main body portion 31, a transport path 34, a tape feed portion 35, a tape peeling portion 7, and a magnetic flux changing portion 6. A tape insertion port 33 is arranged near an intermediate height on the front side of the main body portion 31. The transport path 34 extends from the tape insertion port 33 to the component supply position 32. The transport path 34 is formed in a rail shape having a rectangular groove that opens upward. As the material for forming the transport path 34, a non-magnetic material such as copper or resin that is not affected by the magnetic flux is used. The transport path 34 guides at least the bottom tape 82 (see FIGS. 4 and 5) to the component supply position 32.

The tape feeding unit 35 feeds the carrier tape 8 along the transport path 34. The tape feeding portion 35 is arranged on the lower side of the transport path 34. The tape feed unit 35 is composed of four sprockets, two servomotors (not shown), and the like. More specifically, the first sprocket 351 and the second sprocket 352 are rotatably provided on the lower side of the transport path 34 near the component supply position 32. The teeth of the first sprocket 351 and the second sprocket 352 project from the holes formed in the bottom surface of the transport path 34 and are fitted into the sprocket holes 84 of the carrier tape 8. The first sprocket 351 and the second sprocket 352 are driven synchronously by the front servomotor, and can be switched between forward rotation and reverse rotation.

The third sprocket 353 and the fourth sprocket 354 are rotatably provided on the lower side of the transport path 34 near the tape insertion port 33 toward the front side. The teeth of the third sprocket 353 and the fourth sprocket 354 project from the holes formed in the bottom surface of the transport path 34 and are fitted into the sprocket holes 84 of the carrier tape 8. The third sprocket 353 and the fourth sprocket 354 are driven synchronously by the rear servomotor (not shown), and can be switched between forward rotation and reverse rotation.

A tape reel 39 around which the carrier tape 8 is wound is rotatably supported on the front side of the tape insertion port 33. The four sprockets (351, 352, 353, 354) perform an automatic loading function when driven in the forward direction. As a result, the tip of the carrier tape 8 is fed to the component supply position 32. Further, the four sprockets (351, 352, 353, 354) perform an automatic ejection function when driven in reverse. As a result, the tip of the carrier tape 8 is returned to the front side of the fourth sprocket 354.

FIG. 3 is a plan view illustrating the configuration and peeling operation of the tape peeling portion 7. Further, FIG. 4 is a plan view showing only the carrier tape 8 in FIG. In FIGS. 3 and 4, the cover tape 81 constituting the carrier tape 8 is shown with hatching for convenience. Further, the adhesive portion 85, the adhesive portion 86, and the component 89 are shown in black for convenience. FIG. 5 is a cross-sectional view of the carrier tape 8 as seen from the VV direction of FIG.

The carrier tape 8 is composed of a cover tape 81 and a bottom tape 82. At a position closer to one side edge from the center of the bottom tape 82 in the tape width direction, a large number of rectangular hole-shaped cavity portions 83 are provided at equal pitches in the tape length direction. A component 89 is housed in each cavity 83. Many types of component 89 are manufactured containing iron and are attracted by the acting magnetic flux. A large number of sprocket holes 84 are formed at equal pitches in the tape length direction at positions closer to the other side edge of the bottom tape 82.

A cover tape 81 is detachably adhered to the upper surface of the bottom tape 82. More specifically, an adhesive portion 85 extending in the tape length direction is set between the cavity portion 83 of the bottom tape 82 and one side edge. Further, an adhesive portion 86 extending in the tape length direction is set between the cavity portion 83 of the bottom tape 82 and the sprocket hole 84. Both sides of the cover tape 81 in the tape width direction are adhered to the two adhesive portions 85 and 86. The width dimension of the cover tape 81 is smaller than the width dimension of the bottom tape 82. The cover tape 81 covers the cavity 83 but does not cover the sprocket hole 84.

There is a margin in the size of the component 89 with respect to the internal size of the cavity portion 83. Therefore, the component 89 can move back and forth and left and right in the cavity portion 83. Further, there is a margin in the height of the component 89 with respect to the height inside the cavity portion 83. Therefore, the component 89 can move up and down in the cavity portion 83. The component 89 occasionally adheres to the cover tape 81. Examples of the cause of adhesion include the influence of a load when the tape reel 39 is stored, static electricity generated on the cover tape 81, and the like.

The tape peeling portion 7 is arranged from the front side to the rear side of the component supply position 32. The tape peeling portion 7 is composed of two side plates 77 and 78, a first tape guide 71, a second tape guide 72, a peeling blade 73, a tape folding plate 74 and the like. The two side plates 77 and 78 are erected with the transport path 34 interposed therebetween. The first tape guide 71 and the second tape guide 72 are thin plate-shaped members. The first tape guide 71 and the second tape guide 72 are separated and arranged in parallel on the upper side of the transport path 34. The separation dimension between the first tape guide 71 and the second tape guide 72 and the transport path 34 is slightly larger than the thickness of the carrier tape 8. The carrier tape 8 passes between the separation dimensions.

The front portion of the first tape guide 71 is bridged between the two side plates 77 and 78. The rear portion of the first tape guide 71 is arranged closer to the other side plate 78. An oval sprocket hole window 711 is formed near the rear of the first tape guide 71. The sprocket hole window 711 makes the sprocket hole 84 of the carrier tape 8 visible. Notched windows with abbreviations are also formed at a plurality of other positions of the first tape guide 71. The notched window makes the carrier tape 8 visible.

The second tape guide 72 is arranged side by side toward the rear of the first tape guide 71, and is attached to one side plate 77. The second tape guide 72 is notched at a portion corresponding to the component supply position 32. An opening 75 extending in the front-rear direction is formed between the first tape guide 71 and the second tape guide 72. The front side of the opening 75 is formed between the first tape guide 71 and one side plate 77, and is wide open in the width direction. The rear side of the opening 75 is formed between the first tape guide 71 and the second tape guide 72, and is narrowly opened in the width direction. The rear side of the opening 75 leads to the component supply position 32.

The peeling blade 73 is attached so as to project from one side plate 77 in the width direction, and is arranged closer to the front side of the opening 75. The peeling blade 73 is formed so that the width of the tip is narrow and thin in the vertical direction, and the width of the tail is wide and thick in the vertical direction. The peeling blade 73 is arranged so that the tip thereof faces forward and faces the carrier tape 8. Further, the height of the peeling blade 73 is adjusted so that the tip thereof enters between the bottom tape 82 and the cover tape 81.

The tape folding plate 74 is arranged so as to be connected to the tail of the peeling blade 73. The tape folding plate 74 projects from one side plate 77 in the width direction. The tape folding plate 74 is separated and parallel to the upper side of the first tape guide 71 and the second tape guide 72. The tape folding plate 74 is gradually widened toward the rear away from the peeling blade 73. That is, the tape folding plate 74 has a tapered side edge 741. The side edge 741 folds back the sent cover tape 81 to open the cavity portion 83. The separation dimension between the tape folding plate 74 and the first tape guide 71 is adjusted so that the cover tape 81 can be folded well. The tape folding plate 74 is cut out at a portion corresponding to the component supply position 32.

Next, the peeling operation of the tape peeling portion 7 will be described. When the carrier tape 8 is sent toward the tape peeling portion 7, the tip of the carrier tape 8 and the peeling blade 73 face each other. Further, when the carrier tape 8 is fed, the release blade 73 enters between the bottom tape 82 and the cover tape 81, and advances between the tapes. In the present embodiment, the peeling blade 73 peels off the adhesive portion 85 on one side of the cover tape 81 in the tape width direction, and does not peel off the adhesive portion 86 on the other side. Therefore, the cover tape 81 is sent in a state where one adhesive portion 85 is peeled off and the other adhesive portion 86 is adhered.

As the cover tape 81 advances from the rear side to the front side of the opening 75, it rises above the other adhesive portion 86 along the side surface of the peeling blade 73. Further, the cover tape 81 is folded back in the direction of the other side plate 78 along the tapered side edge 741 of the tape folded plate 74. Finally, the cavity 83 is opened, and the component 89 can be sucked at the component supply position 32. After the component 89 is sucked, the carrier tape 8 is discharged to the front of the tape feeder 3 with the cover tape 81 still adhered to the bottom tape 82.

The magnetic flux changing portion 6 is arranged at a position on the lower side of the transport path 34 and on the front side of the peeling position of the tape peeling portion 7 (the position of the peeling blade 73). FIG. 6 is a perspective view schematically showing the configuration of the magnetic flux changing portion 6. As shown, the magnetic flux changing portion 6 is formed by alternately arranging N magnetic poles and S magnetic poles in the traveling direction of the carrier tape 8 (hereinafter abbreviated as the tape traveling direction).

Specifically, the magnetic flux changing portion 6 is composed of a single magnetic member formed by magnetizing a plurality of sets (4 sets in the example of FIG. 6) of N magnetic poles and S magnetic poles. This type of magnetic member is commercially available under the name of a magnet sheet or the like, and the cost is low. The magnetic flux changing unit 6 changes the magnetic flux acting on the component 89 according to the position of the component 89 in the traveling direction of the carrier tape 8. The change in magnetic flux changes at least one of the magnitude and direction of the attractive force acting on the component 89.

The magnetic flux changing unit 6 may be configured by arranging a plurality of permanent magnets in a row. Further, the magnetic flux changing unit 6 can also be configured by using an electromagnet. By changing the applied voltage, the magnetic flux changing unit 6 made of an electromagnet can change the magnetic flux acting on the component 89 without moving the component 89. However, in consideration of cost, workability of assembly, ease of handling, and the like, the magnetic flux changing portion 6 made of a single magnetic member is superior to the configuration in which a plurality of permanent magnets are arranged in a row or the configuration in which an electromagnet is used.

3. 3. Actions and effects of the tape feeder 3 of the first embodiment Next, the actions and effects of the magnetic flux changing portion 6 of the tape feeder 3 of the first embodiment will be described. When the carrier tape 8 is fed by the tape feeding unit 35, the relative positional relationship between the component 89 and the magnetic flux changing unit 6 changes in the tape traveling direction. For example, the relative positional relationship changes from FIG. 7 through FIGS. 8 and 9 to FIG. 10 in chronological order.

FIG. 7 is a side sectional view showing a state in which the component 89 attached to the cover tape 81 is located directly above the N magnetic pole. FIG. 8 is a side sectional view showing a state in which the component 89 attached to the cover tape 81 is located at a position slightly past directly above the N magnetic pole. FIG. 9 is a side sectional view showing a state in which the component 89 attached to the cover tape 81 is located directly above the magnetic pole boundary. FIG. 10 is a side sectional view showing a state in which the component 89 attached to the cover tape 81 is located at a position slightly past the magnetic pole boundary. In the following description, of the three parts 89 shown in FIGS. 7 to 10, the central part 89 attached to the cover tape 81 will be focused on.

In the state shown in FIG. 7, the component 89 receives the attractive force F1 in the downward direction from the N magnetic pole directly below. At the same time, the component 89 receives the attractive force F2 in the diagonally downward direction and the attractive force F3 in the diagonally downward direction from the two S magnetic poles before and after the tape traveling direction. The suction force F2 and the suction force F3 have the same magnitude and opposite directions. As shown in the figure, the total suction force FT1 obtained by vector-synthesizing the suction force F1, the suction force F2, and the suction force F3 cancels the suction force component in the horizontal direction and goes straight downward. As a result, the component 89 is sucked in the downward direction. If the total suction force FT1 is larger than the adhesive force of the component 89 to the cover tape 81, the component 89 will fall.

In the state shown in FIG. 8, the component 89 receives the attractive force F4 in the diagonally downward direction from the N magnetic pole on the rear side in the tape traveling direction, and the attractive force F5 in the diagonally downward direction from the S magnetic pole on the front side in the tape traveling direction. The suction force F4 is larger than the suction force F5 and has a direction opposite to that of the suction force F5. As shown, the total suction force FT2 obtained by vector-synthesizing the suction force F4 and the suction force F5 has not only a downward suction force component but also a backward suction force component in the tape traveling direction.

In the state shown in FIG. 9, the component 89 receives the attractive force F6 in the diagonally downward direction from the N magnetic pole on the rear side in the tape traveling direction, and the attractive force F7 in the diagonally downward direction from the S magnetic pole on the front side in the tape traveling direction. The suction force F6 and the suction force F7 have the same magnitude and opposite directions. As shown in the figure, the total suction force FT3 obtained by vector-synthesizing the suction force F7 and the suction force F8 cancels the suction force component in the horizontal direction and heads straight downward.

In the state shown in FIG. 10, the component 89 receives the attractive force F8 in the diagonally downward direction from the N magnetic pole on the rear side in the tape traveling direction, and the attractive force F9 in the diagonally downward direction from the S magnetic pole on the front side in the tape traveling direction. The suction force F8 is smaller than the suction force F9 and has a direction opposite to that of the suction force F9. As shown in the figure, the total suction force FT4 obtained by vector-synthesizing the suction force F8 and the suction force F9 has not only a downward suction force component but also a forward suction force component in the tape traveling direction.

After that, the same operation as in FIGS. 7 to 10 is repeated. The component 89 receives not only the downward attractive force component but also the backward and forward attractive force components in the tape traveling direction alternately. As a result, the component 89 is swung back and forth in the tape traveling direction, and the adhesion surface with the cover tape 81 is opened from the end. Therefore, even when the total suction force FT1 is smaller than the adhesive force of the component 89, the component 89 swings and falls away from the cover tape 81.

That is, the component 89 attached to the cover tape 81 is shaken by the change of the magnetic flux, and is surely dropped before the cover tape 81 is peeled off at the peeling position. As a result, the component 89 does not collide with the peeling blade 73 in a state of being attached to the cover tape 81, and is not damaged by the peeling blade 73. Strictly speaking, the attractive force of the magnetic pole far away from the component 89 is also related. Nevertheless, there is no change in the action in which the backward and forward suction force components in the tape traveling direction are alternately generated.

Further, adhesion to the cover tape 81 is likely to occur in the small part 89. Therefore, it is preferable that the arrangement pitch Pm of the N magnetic pole and the S magnetic pole shown in FIG. 6 is set based on the minimum value of the sizes of various large and small parts 89. Further, the formation pitch Pc of the cavity portion 83 changes according to the size of the component 89. Therefore, the arrangement pitch Pm may be set based on the formation pitch Pc of the cavity portion 83. In the example of FIG. 5, the arrangement pitch Pm is set to be substantially equal to the formation pitch Pc.

If the arrangement pitch Pm is too small, a large number of magnetic poles face one component 89. In this case, the suction force component in the tape traveling direction is not remarkably generated, and the above-mentioned action does not occur. Further, if the arrangement pitch Pm is excessive, the number of magnetic poles constituting the magnetic flux changing portion 6 is limited. In this case, the number of swings of the component 89 attached to the cover tape 81 is reduced, and the chance of falling is reduced.

Further, the magnetic flux changing portion 6 is removable. As a result, the magnetic flux changing portion 6 can be removed to deal with the component 89 that dislikes the influence of the magnetic flux. Further, the magnetic flux changing portion 6 can be retrofitted to the existing tape feeder. As a result, the embodiment of the first embodiment can be implemented even in the tape feeder 3 operating at the delivery destination.

4. The tape feeder of the second embodiment Next, the tape feeder of the second embodiment will be described. The tape feeder of the second embodiment has a configuration of the magnetic flux changing portion 6A different from that of the first embodiment, and other configurations are the same as those of the first embodiment. FIG. 11 is a plan view schematically showing the magnetic flux changing portion 6A of the tape feeder of the second embodiment.

As shown in the figure, the magnetic flux changing portion 6A is arranged at a position on the lower side of the transport path 34 and on the front side in the tape traveling direction from the peeling position of the tape peeling portion 7 (the position of the peeling blade 73). To. The magnetic flux changing portion 6A is formed so that only a plurality of N magnetic poles are separated from each other in the tape traveling direction. The magnetic flux changing portion 6A is formed, for example, by arranging the N magnetic poles of a plurality of permanent magnets in a separated manner while facing upward.

In the second embodiment, the absolute value of the attractive force that the magnetic flux changing portion 6A attracts the component 89 is smaller than that in the first embodiment. Nevertheless, the action of alternating backward and forward suction components in the tape traveling direction occurs as well. Therefore, also in the second embodiment, the component 89 attached to the cover tape 81 is shaken by the change of the magnetic flux, and is surely dropped before the cover tape 81 is peeled off at the peeling position. The magnetic flux changing portion 6A may be formed such that only a plurality of S magnetic poles are separated from each other in the tape traveling direction.

5. The tape feeder of the third embodiment Next, the tape feeder of the third embodiment will be described. In the tape feeder of the third embodiment, the magnetic flux stabilizing unit 9 is added to the tape feeder 3 of the first embodiment. FIG. 12 is a plan view schematically showing the magnetic flux changing portion 6 and the magnetic flux stabilizing portion 9 of the tape feeder of the third embodiment. As shown, the magnetic flux stabilizing portion 9 is arranged below the transport path 34 between the peeling position (position of the peeling blade 73) of the tape peeling portion 7 and the magnetic flux changing portion 6.

The magnetic flux stabilizing portion 9 is formed by arranging N magnetic poles and S magnetic poles long in the tape traveling direction in the width direction of the transport path 34. The magnetic flux stabilizing unit 9 stabilizes the magnetic flux acting on the component 89 regardless of the position of the component 89 in the tape traveling direction. The stable magnetic flux exerts a downward attractive force on the component 89. Therefore, the posture of the component 89 that has fallen to the bottom surface of the cavity portion 83 when passing through the magnetic flux changing portion 6 and the component 89 that is located on the bottom surface of the cavity portion 83 from the beginning is stabilized by the magnetic flux of the magnetic flux stabilizing portion 9. Further, the reattachment of the dropped component 89 to the cover tape 81 is prevented. The magnetic flux stabilizing unit 9 can also be extended to the component supply position 32.

6. Application and Modification of the Embodiment The arrangement position of the magnetic flux changing portion (6, 6A) is not limited to the lower side of the transport path 34. For example, even if the magnetic flux changing portion is provided on the side surface of the transport path 34, the component 89 swings due to the change in the acting magnetic flux, so that the same operation as that of the embodiment can be obtained. Further, the tape peeling portion 7 of the embodiment peels off only the adhesive portion 85 on one side, but may have a structure in which the adhesive portions (85, 86) on both sides are peeled off and the cover tape 81 is pulled back in the opposite direction. The first to third embodiments can be applied and modified in various ways.

1: Parts mounting machine 3: Tape feeder 31: Main body 32: Parts supply position 33: Tape insertion port 34: Conveyance path 35: Tape feed part 6, 6A: Magnetic flux change part 7: Tape peeling part 73: Peeling blade 8: Carrier tape 81: Cover tape 82: Bottom tape 83: Cavity part 85, 86: Adhesive part 89: Part 9: Magnetic flux stabilizing part F1 to F9: Suction force FT1 to FT4: Total suction force Pm: Arrangement pitch Pc: Formation pitch

Claims (1)

A carrier tape composed of a bottom tape having a plurality of cavities for accommodating parts and a cover tape adhered to the bottom tape and covering the cavities is inserted, and at least a transport path for guiding the bottom tape to a part supply position. When,
A tape feeding unit that feeds the carrier tape along the transport path,
A tape peeling portion that peels the cover tape from the bottom tape to open the cavity portion at a peeling position on the front side of the component supply position of the transport path.
A single magnetic member arranged under the tape peeling portion and changing the magnetic flux acting on the component according to the position of the component in the traveling direction of the carrier tape.
A tape feeder equipped with.

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