Component supply device, component mounting machine and curl correction method for component storage tape

Abstract

To surely correct a curl of a component storage tape in which a component is stored.SOLUTION: A correction roller 54 is brought into contact with an end portion (one end portion) at a left side Dwl of a component storage tape 8 in a width direction Dw and is not brought into contact with the component storage tape 8 at a right side Dwr (the other end side) of the end portion at the left side Dwl. The correction roller 51 is brought into contact with an end portion at the right side Dwr of the component storage tape 8 in the width direction D and is not brought into contact with the component storage tape 8 at the left side Dwl (one end side) of the end portion at the right side Dwr. A force that twists the component storage tape 8 in the width direction Dw acts on the component storage tape 8.SELECTED DRAWING: Figure 11

Description

Technical Field

[0001] This invention relates to a technique for correcting the winding distortion of a component storage tape having pockets for storing components.

Background Art

[0002] In a component mounter for mounting components on a substrate, a component storage tape having pockets for storing components is used. Specifically, a reel around which the component storage tape is wound is arranged with respect to a tape feeder. The tape feeder has a sprocket, and the component storage tape drawn out from the reel is engaged with the sprocket. Then, as the sprocket rotates, the component storage tape is conveyed in the feed direction, and the components in the pockets are supplied to the component supply position. The components thus supplied are transferred from the component supply position to the substrate by a mounting head.

[0003] Further, as shown in Patent Documents 1 to 3, the component storage tape provided in a state of being wound around a reel has a winding distortion. When attempting to discharge such a component storage tape having a winding distortion from the discharge section, the component storage tape may stay in the discharge section. Therefore, in Patent Documents 1 and 2, by providing a correction mechanism for correcting the winding distortion of the component storage tape in the discharge section, the occurrence of the stay of the component storage tape is suppressed.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0005] That is, in Patent Documents 1 and 2, when the component storage tape passes through the correction mechanism, the winding distortion of the component storage tape is corrected by the correction mechanism. However, in a configuration where the component storage tape is pushed out by a sprocket into the correction mechanism, it is sometimes difficult to reliably correct the winding distortion of the component storage tape because the component storage tape does not properly enter the correction mechanism. That is, since the correction mechanism is arranged on the downstream side of the sprocket that feeds out the component storage tape, the component storage tape that has lost its thrust is not properly discharged. As a result, there is a risk of problems such as, for example, a plurality of component storage tapes becoming jammed in the feeder in a state where they overlap in the thickness direction of the component storage tape.

[0006] The present invention has been made in view of the above problems, and an object thereof is to reliably correct the winding distortion of a component storage tape that stores components.

Means for Solving the Problems

[0007] The component supply device according to the present invention includes a sprocket that rotates while engaging with a component storage tape having pockets for storing components, and conveys the component storage tape in the feed direction, and a correction unit that corrects the winding distortion of the portion of the component storage tape that stores components on the upstream side of the sprocket in the feed direction. The correction unit includes a first contact member that contacts the lower surface of the component storage tape to bend the component storage tape, and a second contact member that contacts the upper surface of the component storage tape to bend the component storage tape. The first contact member contacts one end in the width direction of the component storage tape and does not contact the component storage tape on the other end side from the one end, and the second contact member contacts the other end in the width direction of the component storage tape and does not contact the component storage tape on the one end side from the other end.

[0008] The component mounting machine according to the present invention includes the above-described component supply device and a mounting unit that mounts the components supplied by the component supply device on a substrate.

[0009] The method for correcting the winding distortion of the component storage tape according to the present invention includes a step of conveying the component storage tape in the feed direction by a sprocket that rotates while engaging with the component storage tape having pockets for storing components, and a step of correcting the winding distortion of the portion of the component storage tape for storing components by a correcting unit on the upstream side of the sprocket in the feed direction. The correcting unit includes a first contact member that bends the component storage tape by contacting the lower surface of the component storage tape, and a second contact member that bends the component storage tape by contacting the upper surface of the component storage tape. The first contact member contacts one end portion in the width direction of the component storage tape and does not contact the component storage tape on the other end side from the one end portion. The second contact member contacts the other end portion in the width direction of the component storage tape and does not contact the component storage tape on the one end side from the other end portion.

[0010] In the present invention (component supply device, component mounting machine, and method for correcting the winding distortion of the component storage tape) configured as described above, the correcting unit provided on the upstream side in the feed direction corrects the winding distortion of the component storage tape with respect to the sprocket that conveys the component storage tape in the feed direction. Therefore, the correcting unit corrects the winding distortion of the component storage tape passing through the correcting unit by being pulled by the sprocket. In particular, the correcting unit includes a first contact member that bends the component storage tape by contacting the lower surface of the component storage tape, and a second contact member that bends the component storage tape by contacting the upper surface of the component storage tape. Also, the first contact member contacts one end portion in the width direction of the component storage tape and does not contact the component storage tape on the other end side from the one end portion. The second contact member contacts the other end portion in the width direction of the component storage tape and does not contact the component storage tape on the one end side from the other end portion. Therefore, the first contact member applies a force biased toward one end side to the component storage tape, and the second contact member applies a force biased toward the other end side to the component storage tape. As a result, a force that twists the component storage tape in the width direction acts on the component storage tape passing between the first contact member and the second contact member while being pulled by the sprocket. Thereby, it is possible to reliably correct the winding distortion of the component storage tape.

[0011] Further, the first contact member is a first contact roller that rotates following a component storage tape conveyed to a sprocket. The first contact roller has a first tape contact portion that contacts the component storage tape at one end in the width direction. Among the first contact rollers, the portion on the other end side in the width direction from the first tape contact portion has an outer shape smaller than that of the first tape contact portion and is configured to be separated from the component storage tape, thereby constituting a component supply device. In such a configuration, by using the first contact roller, it is possible to accurately apply a force biased toward one end to the component storage tape, twist the tape in the width direction, and reliably correct the curl of the component storage tape.

[0012] Further, the outer shape of the first contact roller may be configured to have a tapered shape that is maximum at the first tape contact portion and becomes smaller as it goes from the first tape contact portion toward the other end side in the width direction. When the first contact roller having such an outer shape is used, it is possible to accurately apply a force biased toward one end to the component storage tape from the first tape contact portion having the maximum diameter. In particular, since the first contact roller has a tapered shape that becomes smaller as it goes from the first tape contact portion toward the other end side, even if the component storage tape comes off from the first tape contact portion, the component storage tape can be supported by the tapered shape portion to prevent the component storage tape from completely falling off.

[0013] Further, the first contact roller may be configured to contact the component storage tape at one end that has come out of the pocket in the width direction and not to contact the pocket. In such a configuration, it is possible to suppress the first contact roller from affecting the posture of the components in the pocket.

[0014] Further, the second contact member is a second contact roller that rotates following a component storage tape conveyed to a sprocket. The second contact roller has a second tape contact portion that contacts the component storage tape at the other end in the width direction. Among the second contact rollers, the portion on one end side in the width direction from the second tape contact portion has an outer shape smaller than that of the second tape contact portion and is configured to be separated from the component storage tape, so that the component supply device may be configured. In such a configuration, by using the second contact roller, it is possible to accurately apply a force biased toward the other end side to the component storage tape, twist the tape in the width direction, and reliably correct the curl of the component storage tape.

[0015] Further, the outer shape of the second contact roller may be configured to have a tapered shape that is maximum at the second tape contact portion and decreases as it goes from the second tape contact portion toward one end side in the width direction. When the second contact roller having such an outer shape is used, it is possible to accurately apply a force biased toward the other end side to the component storage tape from the second tape contact portion having the maximum diameter. In particular, since the second contact roller has a tapered shape that decreases as it goes from the second tape contact portion toward one end side, even if the component storage tape comes off from the second tape contact portion, the component storage tape can be supported by the tapered shape portion and the complete dropout of the component storage tape can be suppressed.

[0016] Further, in the feed direction, the component supply device may be configured such that the second contact member contacts the component storage tape upstream of the first contact member. In such a configuration, a twisting force in the width direction can be applied to the component storage tape that moves from the second contact member to the first contact member while being pulled by the sprocket. Thereby, the curl of the component storage tape can be reliably corrected.

[0017] Further, a guide member is further provided which bends the component storage tape by contacting the component storage tape from below on the upstream side of the first contact member and the second contact member in the feed direction. The guide member may protrude above the second contact member, and the first contact member may protrude above the second contact member to configure the component supply device. In such a configuration, the component storage tape can be pulled by the sprocket while bending the component storage tape so as to descend from the guide member to the second contact member and then ascend from the second contact member to the first contact member. Therefore, it is advantageous for reliably correcting the winding of the component storage tape.

[0018] Also, a tape set unit that detachably supports the component storage tape at a predetermined tape set position, and a loading execution unit that executes loading to convey the component storage tape supported at the tape set position by the tape set unit toward the sprocket and engage it with the sprocket are further provided. The correction unit may configure the component supply device so as to correct the winding of the component storage tape removed from the tape set position after the loading is executed. In the component supply device configured in this way, when the remaining number of components on the component storage tape conveyed from the tape set position to the feed sprocket decreases, the component storage tape is removed from the tape set position and a new component storage tape is attached to the tape set position, so that it is possible to prepare for the exhaustion of components on the component storage tape. Then, the component storage tape that has run out of components is conveyed in the feed direction and discharged from the component supply device. On the other hand, the correction unit is configured to correct the winding of the component storage tape removed from the tape set position, and can correct the winding of the end portion of the component storage tape. As a result, the following advantages can be obtained. That is, the end portion of the component storage tape is wound around the inside of the reel, so it has a strong winding. Therefore, it is important to correct the winding of the end portion of the component storage tape, and the winding of this end portion can be reliably corrected.

[0019] Further, the sprocket conveys the component storage tape engaged with the sprocket in the feed direction by executing loading. The component storage tape supported at the tape set position is conveyed along the loading path from the tape set position toward the sprocket. The component storage tape removed from the tape set position passes through a path provided below the loading path and then merges into the loading path at a merging point in the middle of the loading path and is conveyed toward the sprocket. The correcting unit may be configured to correct the curl of the portion of the component storage tape removed from the tape set position before reaching the merging point. In such a configuration, since the correcting unit is provided separately from the loading path, during loading, the influence of the resistance generated due to the correction of the curl by the correcting unit can be eliminated, and smooth loading can be executed.

[0020] Further, it includes a device body that rotatably supports the sprocket. The tape set unit is movable forward and backward with respect to the device body. The correcting unit executes a setting operation of setting the component storage tape on the correction path and a releasing operation of releasing the component storage tape from the correction path according to the forward and backward movement of the tape set unit. The correction path may be configured such that one end of the component storage tape contacts the first contact member and the other end of the component storage tape contacts the second contact member. In such a configuration, in a scene where correction of the component storage tape is unnecessary, the correction can be appropriately released.

[0021] Further, it includes a movable part that can move forward and backward with respect to the device body together with the tape set unit. The correcting unit may be configured to execute a setting operation according to the movable part being located at the set position and execute a releasing operation according to the movable part moving from the set position to the release side away from the device body. In such a configuration, the setting operation and the releasing operation can be executed by a simple operation such as moving the movable part forward and backward.

[0022] Furthermore, it further includes a swing member supported by a movable part so as to be swingable about a swing axis, and a guide member supported by the swing member on the release side from the swing axis. As the movable part moves from the release side to the set position, the release side from the swing axis of the swing member swings upward and the guide member rises, and the guide member sandwiches the component storage tape between the tape set unit, and guides the component storage tape upstream of the first contact member and the second contact member in the feed direction. As the movable part moves from the set position to the release side, the release side from the swing axis of the swing member swings downward and the guide member descends, and the guide member separates from the tape set unit, and the component supply device may be configured to release the sandwiching of the component storage tape between the guide member and the tape set unit. In such a configuration, as the movable part moves from the set position to the release side, the guide member separates from the tape set unit. Therefore, the component storage tape sandwiched between the tape set unit and the guide member can be released from between them, and the workability of the operator with respect to the tape set unit can be ensured.

[0023] Furthermore, it further includes a push-up member attached to the apparatus main body. The push-up member may be configured to swing the guide member upward by swinging the swing member that comes into contact with the push-up member as the movable part moves to the set position. In such a configuration, by moving the movable part to the set position, the guide member can be swung upward to sandwich the component storage tape between the guide member and the tape set unit. Therefore, while stably supporting the component storage tape, a twisting force can be applied to the component storage tape to surely correct the winding distortion of the component storage tape.

[0024] Further, the second contact member is supported by the movable part, and as the movable part moves from the release side to the set position, the guide member rises from the release side of the second contact member to above the second contact member, and the second contact member contacts the component storage tape from above, thereby executing the setting operation. As the movable part moves from the set position to the release side, the guide member descends from the release side of the second contact member to below the second contact member, thereby executing the release operation, and the component supply device may be configured. In such a configuration, a correction path for correcting the component storage tape can be formed by a simple operation of moving the movable part from the release side to the set position.

[0025] Further provided with a tape discharge part for discharging the component storage tape from which components have been taken out from the pocket on the downstream side of the sprocket in the feed direction, and the tape discharge part may configure the component supply device so as not to correct the winding distortion of the component storage tape.

Advantages of the Invention

[0026] As described above, according to the present invention, it is possible to reliably correct the winding distortion of the component storage tape for storing components.

Brief Description of the Drawings

[0027]

Figure 1

Figure 2A

Figure 2B

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Figure 5D

Figure 6A

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Figure 8A

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Figure 8C

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Figure 11

Figure 12

Figure 13

Mode for Carrying Out the Invention

[0028] FIG. 1 is a plan view schematically showing an example of a component mounter according to the present invention. In this figure, the X direction which is the horizontal direction, the Y direction which is the horizontal direction orthogonal to the X direction, and the Z direction which is the vertical direction are appropriately shown. This component mounter 1 includes a pair of conveyors 12, 12 provided on a base 11. Then, the component mounter 1 mounts a component E (FIG. 2A) on a substrate B carried into a working position 13 (the position of the substrate B in FIG. 1) from the upstream side in the X direction (substrate conveyance direction) by the conveyor 12, and discharges the substrate B (component-mounted substrate B) on which the component mounting has been completed from the working position 13 to the downstream side in the X direction by the conveyor 12.

[0029] In the component mounting machine 1, a pair of Y-axis rails 21, 21 extending in the Y direction, a Y-axis ball screw 22 extending in the Y direction, and a Y-axis motor 23 for rotationally driving the Y-axis ball screw 22 are provided. An X-axis rail 24 extending in the X direction is fixed to the nut of the Y-axis ball screw 22 while being supported by the pair of Y-axis rails 21, 21 so as to be movable in the Y direction. An X-axis ball screw 25 extending in the X direction and an X-axis motor 26 for rotationally driving the X-axis ball screw 25 are attached to the X-axis rail 24. Further, the component mounting machine 1 includes a head unit 27 supported by the X-axis rail 24 so as to be movable in the X direction, and the head unit 27 is fixed to the nut of the X-axis ball screw 25. Therefore, the Y-axis motor 23 rotates the Y-axis ball screw 22 to move the head unit 27 in the Y direction, and the X-axis motor 26 rotates the X-axis ball screw 25 to move the head unit 27 in the X direction.

[0030] On both sides in the Y direction of the pair of conveyors 12, 12, two component supply units 28 are arranged side by side in the X direction, and a feeder mounting carriage 29 is detachably attached to each component supply unit 28. A plurality of tape feeders 3 arranged side by side in the X direction are detachably mounted on the feeder mounting carriage 29. The tape feeder 3 has a component supply position Lf provided at the tip end on the work position 13 side, and supplies the component E to the component supply position Lf. Further, a plurality of reel holders 6 arranged side by side in the X direction are detachably mounted on the feeder mounting carriage 29, and one tape feeder 3 and one reel holder 6 are associated with each other and arranged side by side in the Y direction. A component supply reel 7 is detachably mounted on each reel holder 6, and a component storage tape 8 (FIG. 2A) described later is wound around the component supply reel 7. Then, the tape feeder 3 supplies the component E in the component storage tape 8 to the component supply position Lf by intermittently conveying the component storage tape 8 pulled out from the component supply reel 7 mounted on the corresponding reel holder 6.

[0031] The head unit 27 has a plurality (four) of mounting heads 271 arranged in the X direction. Each mounting head 271 has an elongated shape extending in the Z direction (vertical direction), and can adsorb and hold the component E by means of a nozzle detachably attached to its lower end. That is, the mounting head 271 moves above the component supply position Lf and adsorbs the component E supplied to the component supply position Lf by the tape feeder 3. Subsequently, the mounting head 271 moves above the substrate B held at the working position 13 and releases the adsorption of the component E, thereby mounting the component E on the substrate B. In this way, the mounting head 271 executes component mounting by taking out the component E supplied to the component supply position Lf by the tape feeder 3 and mounting it on the substrate B.

[0032] FIG. 2A is a perspective view schematically showing an example of a component storage tape held on a component supply reel. In FIG. 2A, the longitudinal direction D1 of the component storage tape 8 and the width direction Dw of the component storage tape 8 are shown. Note that the longitudinal direction D1 and the width direction Dw are orthogonal to each other. The component storage tape 8 has a carrier tape 81 extending in the longitudinal direction D1, and the carrier tape 81 has a peripheral edge portion 82, a pocket forming portion 83, and a peripheral edge portion 84. The peripheral edge portion 82, the pocket forming portion 83, and the peripheral edge portion 84 each extend in the longitudinal direction D1. In the width direction Dw, the peripheral edge portion 82 is adjacent to the pocket forming portion 83, and the peripheral edge portion 84 is adjacent to the pocket forming portion 83 from the opposite side of the peripheral edge portion 82. That is, in the width direction Dw, the pocket forming portion 83 is provided between the peripheral edge portion 82 and the peripheral edge portion 84. The pocket forming portion 83 of the carrier tape 81 has a plurality of pockets 85 arranged at equal pitches in the longitudinal direction D1. The component storage tape 8 has a tape front surface 811 and a tape back surface 812 opposite to the tape front surface 811. Each pocket 85 of the carrier tape 81 opens to the tape front surface 811 side while closing on the tape back surface 812. Small piece components E (electronic components) such as integrated circuits, transistors, capacitors, etc. are stored in each pocket 85. A plurality of engagement holes 86 arranged at equal pitches in the longitudinal direction D1 are arranged in the peripheral edge portion 84 of the carrier tape 81. Each engagement hole 86 penetrates between the tape front surface 811 and the tape back surface 812 of the component storage tape 8. Further, the component storage tape 8 has a cover tape 87 extending in the longitudinal direction D1, and the cover tape 87 is attached to the carrier tape 81 so as to overlap the pocket forming portion 83 from the tape front surface 811 side, closing the openings of the respective pockets 85. This carrier tape 81 constitutes the tape front surface 811.

[0033] FIG. 2B is a diagram schematically showing an example of a component supply reel that holds a component storage tape. As shown in FIG. 2B, the component supply reel 7 has a disk-shaped shaft center 71 and two side plates 72 that sandwich the shaft center 71 from both sides, and supports the component storage tape 8 wound around the shaft center 71 from both sides by the side plates 72. The component storage tape 8 is wound such that the back surface 812 of the tape faces inward (in other words, the side of the shaft center 71), and the front surface 811 of the tape faces outward (in other words, the side opposite to the shaft center 71). Such a component storage tape 8 has a strong winding twist at the end portion of the component storage tape 8 (that is, a predetermined portion from the shaft center 71). In the portion of the component storage tape 8 where this winding twist occurs, the back surface 812 of the tape faces inward, and the front surface 811 of the tape faces outward.

[0034] As will be described later, two component storage tapes 8 can be attached to one tape feeder 3. Correspondingly, each reel holder 6 holds two component supply reels 7 arranged in the Y direction (FIG. 1). Then, the tape feeder 3 intermittently feeds out the component storage tape 8 pulled out from the component supply reel 7 in the corresponding reel holder 6 toward the head unit 27 side, thereby supplying the component E stored in the pocket 85 of the component storage tape 8 to the component supply position Lf (component supply operation).

[0035] FIG. 3 is a side view schematically showing an example of the configuration and operation of a tape feeder. In this figure and the following drawings, the feed direction Df in which the tape feeder 3 feeds out the component storage tape 8 is appropriately shown, and the arrow side of the feed direction Df is treated as the "front side" of the feed direction Df, and the side opposite to the arrow of the feed direction Df is treated as the "rear side" of the feed direction Df. Also, in order to distinguish between the two component storage tapes 8 that can be attached to the tape feeder 3, different reference numerals 8A and 8B are appropriately used for the component storage tape 8 in this figure and the following figures. Note that in this figure, the configuration of the tape feeder 3 (particularly, the conveyance path of the component storage tape 8) is schematically simplified. The specific configuration of the tape feeder 3 will be described in detail later.

[0036] The tape feeder 3 includes a feeder body 31 having a mechanical structure, a feed motor Mf provided at the front end portion of the feeder body 31 in the feed direction Df, and a loading motor Ml provided at the rear end portion of the feeder body 31. The feeder body 31 has a flat case 32 that is thin in the X direction and long in the feed direction Df. At the rear end of the case 32 in the feed direction Df, a tape insertion port 33 (shown by a dashed line) extending in the Z direction is opened, and the above-described component supply position Lf is provided on the upper surface of the front end of the case 32 in the feed direction Df. Inside the feeder body 31, a tape insertion path 34 is provided from the tape insertion port 33 to the component supply position Lf. The feeder body 31 conveys the component storage tape 8 inserted into the tape insertion path 34 from the tape insertion port 33 in the feed direction Df by the driving force of the feed motor Mf and the loading motor Ml, thereby supplying the component E to the component supply position Lf.

[0037] Further, the feeder main body 31 has, within the case 32, a loading sprocket 35 disposed adjacent to the tape insertion port 33 and a gear 36 that transmits the driving force of the loading motor Ml to the loading sprocket 35. The loading sprocket 35 rotates by the driving force generated by the loading motor Ml. Further, the tape feeder 3 has a tape set unit 41 that is detachably attached to the case 32 of the feeder main body 31. The tape set unit 41 attached to the case 32 faces the loading sprocket 35 from below, and by sandwiching the component storage tape 8 between the tape set unit 41 and the loading sprocket 35, the engagement hole 86 of the component storage tape 8 is engaged with the loading sprocket 35. That is, a tape set position Ls is provided between the tape set unit 41 attached to the case 32 and the loading sprocket 35, and by attaching the component storage tape 8 to the tape set position Ls with the tape set unit 41, the component storage tape 8 can be engaged with the loading sprocket 35. Therefore, when the loading sprocket 35 rotates, the component storage tape 8 attached to the tape set position Ls is conveyed in the feed direction Df. Note that the component storage tape 8 is attached to the tape set position Ls such that the tape surface 811 faces upward and the tape back surface 812 faces downward. As a result, with the opening of the pocket 85 of the component storage tape 8 facing upward, the component storage tape 8 is conveyed in the feed direction Df.

[0038] Furthermore, the feeder body 31 has, inside the case 32, a feed sprocket 37 disposed at its front end portion and a gear 38 that transmits the driving force of the feed motor Mf to the feed sprocket 37. The feed sprocket 37 rotates by the driving force generated by the feed motor Mf. The engagement position Le corresponding to the upper end position of the feed sprocket 37 is located between the tape set position Ls and the component supply position Lf. In the tape insertion path 34, a loading path 341 extending from the tape set position Ls to the engagement position Le is provided. The component storage tape 8 conveyed in the feed direction Df by the loading sprocket 35 moves from the tape set position Ls to the engagement position Le along the loading path 341. Then, the engagement hole 86 of the component storage tape 8 that has reached the engagement position Le engages with the feed sprocket 37. As a result, when the feed sprocket 37 rotates intermittently, the component storage tape 8 is intermittently conveyed in the feed direction Df, and the component E is supplied to the component supply position Lf.

[0039] Also, the feeder body 31 has a cutter that contacts the component storage tape 8 on the upstream side in the feed direction Df of the component supply position Lf. This cutter exposes the component E supplied to the component supply position Lf by cutting the cover tape 87 of the component storage tape 8 conveyed intermittently in the feed direction Df at the center and curling it to both sides. The configuration for exposing the component in this way is the same as that described in, for example, Japanese Unexamined Patent Application Publication No. 2015-053320. However, the configuration for exposing the component E is not limited to this example, and the component E may be exposed by peeling off the cover tape 87 from the carrier tape 81.

[0040] Note that the loading path 341 includes a confluence point 342 between the tape set position Ls and the engagement position Le, an upper introduction path 343 from the tape set position Ls to the confluence point 342, and a supply path 344 from the confluence point 342 to the engagement position Le. Further, the tape insertion path 34 has a lower introduction path 345 provided below the upper introduction path 343. This lower introduction path 345 extends from the tape insertion port 33 to the confluence point 342 and merges with the supply path 344 of the loading path 341 at the confluence point 342. When the tape set unit 41 is removed from the case 32, the component storage tape 8 held at the tape set position Ls falls from the upper introduction path 343 to the lower introduction path 345. This component storage tape 8 is conveyed in the feed direction Df by the feed sprocket 37, merges from the lower introduction path 345 into the supply path 344 at the confluence point 342, and then reaches the engagement position Le.

[0041] Step S11 corresponds to a state where the tape feeder 3 is used for component mounting by the mounting head 271. That is, the component storage tape 8A (preceding tape) is inserted along the lower introduction path 345 and the supply path 344 into the feeder body 31, and the feed sprocket 37 intermittently conveys the component storage tape 8A in the feed direction Df to supply the component E to be mounted on the substrate B to the component supply position Lf. Also, in step S11, the tip of the component storage tape 8B (subsequent tape) to be used for component mounting next is attached to the tape set position Ls between the loading sprocket 35 and the tape set unit 41. Thus, the component storage tape 8B to be used next waits at the tape set position Ls at the rear end portion of the feeder body 31.

[0042] As shown in step S12, when the parts E in the parts storage tape 8A are used up and the tape feeder 3 discharges the parts storage tape 8A from its front end in the feed direction Df, the loading shown in step S13 is executed. Specifically, the loading sprocket 35 starts rotating to feed out the parts storage tape 8B in the feed direction Df toward the engagement position Le, and engages the leading end of the parts storage tape 8B with the feed sprocket 37. Subsequently, in step S14, when the operator executes the operation of removing the tape set unit 41 from the case 32, the parts storage tape 8B disengages from the loading sprocket 35 and drops onto the lower introduction path 345. As a result, the feed sprocket 37 can intermittently convey the parts storage tape 8B in the feed direction Df to supply the parts E in the parts storage tape 8B to the parts supply position Lf. Incidentally, after step S14, the operator can attach the tape set unit 41 to the case 32 again to attach the parts storage tape 8 to be used next for parts mounting between the loading sprocket 35 and the tape set unit 41 at the tape set position Ls and wait.

[0043] In the component mounter 1 using such a tape feeder 3, the parts storage tape 8 in use is inserted into the feeder body 31 along the lower introduction path 345 and the supply path 344, while the parts storage tape 8 to be used next waits at the tape set position Ls above the lower introduction path 345. Then, each time the parts storage tape 8 is used up, steps S12 to S14 are performed to engage the waiting parts storage tape 8 at the engagement position Le (loading) so that it can be used next.

[0044] Incidentally, as described above, at the end portion of the component storage tape 8 wound around the axis 71 of the component supply reel 7, a strong winding twist occurs such that the back surface 812 of the tape faces inward and the front surface 811 of the tape faces outward. On the other hand, according to the flow shown in FIG. 3, as the subsequent component storage tape 8 scheduled to be used for component mounting is attached to the tape set position Ls, the preceding component storage tape 8 being used for component mounting is removed from the tape set position Ls and conveyed along the lower introduction path 345. As a result, the end portion of the component storage tape 8 having a strong winding twist will pass through the lower introduction path 345. Therefore, the tape feeder 3 is provided with a tape correction mechanism 5 (FIG. 4A) that corrects the winding twist of the component storage tape 8 passing through the lower introduction path 345 as it is conveyed in the feed direction Df by the feed sprocket 37.

[0045] FIG. 4A is a partial perspective view showing an example of a tape feeder provided with a tape correction mechanism, and FIGS. 4B and 4C are plan views showing an example of a tape set unit provided above the tape correction mechanism. In FIG. 4A, the inside of the tape feeder 3 with the case 32 etc. of the feeder main body 31 removed is appropriately shown. In both figures and the following figures, the right side Dwr and the left side Dwl in the width direction Dw corresponding to the X direction are appropriately shown. Here, the right side Dwr and the left side Dwl in the width direction Dw face opposite to each other.

[0046] The tape feeder 3 includes the above-described tape set unit 41 and a movable part 45 that supports the tape set unit 41. The movable part 45 is provided on the rear side of the feeder main body 31 in the feed direction Df and is movable parallel to the feed direction Df with respect to the feeder main body 31. Therefore, the tape set unit 41 moves in the feed direction Df along with the movable part 45.

[0047] The tape set unit 41 has a pair of side support members 42 and 43 that face each other in the width direction Dw. The side support member 42 is disposed on the left side Dwl of the side support member 43, and the side support member 43 is disposed on the right side Dwr of the side support member 42. The side support member 42 and the side support member 43 are supported by a movable part 45 so as to be able to approach and separate from each other in the width direction Dw. That is, by bringing the side support member 42 and the side support member 43 closer to each other, the distance between the side support member 42 and the side support member 43 can be narrowed, while by separating the side support member 42 and the side support member 43 from each other, the distance between the side support member 42 and the side support member 43 can be widened.

[0048] In FIGS. 4A and 4B, a separated state in which the side support member 42 and the side support member 43 are separated is shown. In the separated state, a gap C that allows the component storage tape 8 to fall is formed between the side support member 42 and the side support member 43. On the other hand, in a proximity state in which the side support member 42 and the side support member 43 are brought closer from the separated state, the side support member 42 and the side support member 43 support the component storage tape 8 from below. Specifically, the side support member 42 has a side plate 421 that stands upright in the proximity state and a support plate 422 that protrudes inward (that is, to the right side Dwr) from the side plate 421. Similarly, the side support member 43 has a side plate 431 that stands upright in the proximity state and a support plate 432 that protrudes inward (that is, to the left side Dwl) from the side plate 431. And in the proximity state, the support plate 422 of the side support member 42 and the support plate 432 of the side support member 43 support both ends of the component storage tape 8 in the width direction Dw from below. On the other hand, when transitioning from the proximity state to the separated state, the support plate 422 of the side support member 42 and the support plate 432 of the side support member 43 are separated from each other in the width direction Dw. Therefore, the component storage tape 8 can fall through the gap C between the support plates 422 and 432 of the side support member 42 and the side support member 43, respectively.

[0049] The movable part 45 has a pair of side plates 461, 461 facing each other in the X direction corresponding to the width direction Dw of the component storage tape 8. In Fig. 4A, only the right-side plate 461 on the right side Dwr of the pair of side plates 461, 462 is shown, and the state where the left-side plate 461 on the left side Dwl is removed is shown. The lateral support member 42 is attached to the upper end of the left-side plate 461 on the left side Dwl and is supported by the side plate 461. The lateral support member 43 is attached to the upper end of the right-side plate 461 on the right side Dwr and is supported by the side plate 461. Further, the movable part 45 has a support member 47 that is movable in the feed direction Df with respect to the feeder body 31 while supporting the pair of side plates 461, 461.

[0050] The support member 47 has a pair of shafts 471, 472 parallel to the feed direction Df, and the shafts 471, 472 are supported by the feeder body 31. Each of the shaft 471 and the shaft 472 is detachable with respect to the feeder body 31 in the feed direction Df and is rotatable about a rotation axis parallel to the feed direction Df. Further, the support member 47 has a connection plate 473 that connects the rear end of the shaft 471 and the rear end of the shaft 471. Therefore, the shafts 471, 472 move integrally in the feed direction Df.

[0051] Of the pair of shafts 471 and 472, the upper shaft 471 supports the side plate 461 of the left side Dwl, and the lower shaft 472 supports the side plate 461 of the right side Dwr. That is, the side plate 461 of the left side Dwl is attached to the rear end portion of the shaft 471 and extends rearward and upward from the shaft 471. Also, the side plate 461 of the right side Dwr is attached to the rear end portion of the shaft 472 and extends rearward and upward from the shaft 472. Then, as the side plate 461 of the left side Dwl rotates with the rotation of the shaft 471, the lateral support member 42 is displaced in the width direction Dw, and as the side plate 461 of the right side Dwr rotates with the rotation of the shaft 472, the lateral support member 43 is displaced in the width direction Dw. Therefore, by the operator rotating at least one of the shaft 471 and the shaft 472, the lateral support member 42 and the lateral support member 43 can be switched between a proximity state in which they are close to each other and a separation state in which the lateral support member 42 and the lateral support member 43 are separated from each other as compared with the proximity state. As a specific configuration for switching between the proximity state and the separation state, for example, the configuration disclosed in Japanese Patent Application Laid-Open No. 2017-199831 (US20190133008A1) can be adopted.

[0052] The tape correction mechanism 5 has a correction roller 51 rotatably attached inside the side plate 461 of the right side Dwr (that is, the left side Dwl). This correction roller 51 is disposed below the tape set unit 41. In the proximity state, the correction roller 51 faces the lateral support member 42 and the lateral support member 43 from below and is rotatable about a rotation axis 511 parallel to the width direction Dw (X direction).

[0053] Incidentally, as shown in FIG. 4A, as the transition from the proximity state to the separated state occurs, the correction roller 51 moves to the right Dwr. As a result, the correction roller 51 retracts to the right Dwr from the passing range of the component storage tape 8 that falls from the support plate 422 and the support plate 432. As a result, the component storage tape 8 can fall through between the correction roller 51 and the side plate 461 of the left Dwl. Note that the falling of the component storage tape 8 may be performed by the self-weight of the component storage tape 8 or by the operation of the operator.

[0054] Further, the tape correction mechanism 5 has a swing frame 52 that is swingably supported about a swing axis 521 parallel to the width direction Dw. Specifically, the support member 47 of the movable portion 45 has a stay 474 extending downward from the connecting plate 473, and the front end portion of the swing frame 52 in the feed direction Df is rotatably supported about the swing axis 521, and the swing frame 52 can swing up and down about the swing axis 521. The swing frame 52 has a pair of side walls 522 arranged at intervals in the width direction Dw, and the stay 474 arranged between the pair of side walls 522 supports the pair of side walls 522 rotatably about the swing axis 521.

[0055] Furthermore, the tape correction mechanism 5 has a guide roller 53 rotatably supported by the swing frame 52. Specifically, at the rear end portion of the swing frame 52 in the feed direction Df, the guide roller 53 is arranged between the pair of side walls 522. And the guide roller 53 is supported by the pair of side walls 522 so as to be rotatable about a rotation axis 531 parallel to the width direction Dw. In this way, the swing frame 52 rotatably supports the guide roller 53 about the rotation axis 531 on the rear side of the swing axis 521 of the swing frame 52 in the feed direction Df.

[0056] This rocking frame 52 is composed of a front arm 523 extending rearward from the front end of the rocking frame 52 and a rear arm 524 extending rearward while bending upward from the rear end of the front arm 523. A rocking shaft 521 is provided at the front end of the front arm 523, and a rotating shaft 531 is provided at the rear end of the rear arm 524.

[0057] Also, the tape correction mechanism 5 has a correction roller 54 supported by the feeder body 31 around a rotating shaft 541 parallel to the width direction Dw. The correction roller 54 is attached to the rear end of the feeder body 31 in the feed direction Df and is located above the support member 47. Further, the tape correction mechanism 5 has a push-up roller 55 supported by the feeder body 31 around a rotating shaft 551 parallel to the width direction Dw. The push-up roller 55 is attached to the rear end of the feeder body 31 in the feed direction Df and is located below the support member 47. In this way, the correction roller 54 and the push-up roller 55 are provided above and below the support member 47, and the above-described rocking frame 52 can move forward and backward in the feed direction Df between the correction roller 54 and the push-up roller 55.

[0058] Figures 5A to 5D are diagrams showing a series of operations of pulling out the tape set unit rearward from the feeder body. The operations in Figures 5A to 5D are executed by the operator. In Figures 5A to 5D, the inside of the tape feeder 3 with the case 32 etc. of the feeder body 31 removed is appropriately shown. In the operations described here, the operator moves the movable part 45 in the feed direction Df from the set position L1 to the pull-out position L2 behind the set position L1.

[0059] In FIG. 5A, the movable part 45 is located at the set position L1. In the state where the movable part 45 is located at the set position L1 (set state), the front arm 523 of the swing frame 52 enters between the correction roller 54 and the push-up roller 55, and the push-up roller 55 abuts against the front arm 523 from below. As a result, the front arm 523 is horizontally supported by the push-up roller 55, and the rear arm 524 extends obliquely upward rearward from the rear end of the front arm 523. Also, in the feed direction Df, the correction roller 54, the correction roller 51, and the guide roller 53 are arranged in order from the front. Particularly in the set state, each of the correction roller 54 and the guide roller 53 protrudes above the correction roller 51. Further, the upper end of the correction roller 54 is higher than the lower end of the correction roller 51, and the upper end of the guide roller 53 is higher than the lower end of the correction roller 51. Also, the rotation axis 541 of the correction roller 54 is higher than the rotation axis 511 of the correction roller 51, and the rotation axis 531 of the guide roller 53 is higher than the rotation axis 511 of the correction roller 51.

[0060] In the state of FIG. 5B (lower swing state), the movable part 45 moves rearward from the set position L1, and the push-up roller 55 abuts against the cam 525 protruding downward at the rear end of the swing frame 52 from the rear and pushes up the cam 525. As a result, on the rear side of the swing axis 521, the swing frame 52 swings downward about the swing axis 521, and the rear arm 524 moves downward along with the guide roller 53.

[0061] In the state of FIG. 5C (separation state), the movable part 45 further moves rearward from FIG. 5B, the swing frame 52 separates rearward from the push-up roller 55, and the rear arm 524 swings further downward along with the guide roller 53. Thus, in the separation state where the support from the push-up roller 55 has disappeared, the chamfered portion 526 on the upper corner at the rear end of the swing frame 52 abuts against and locks to the lower surface of the connecting plate 473. As a result, the swing of the swing frame 52 stops. In FIG. 5D, with the separation state remaining, the movable part 45 further moves rearward and is located at the pull-out position L2.

[0062] Thus, following the withdrawal of the movable part 45 to the withdrawal position L2, the operator can execute the operations of FIGS. 6A to 6D below to set the component storage tape 8 on the tape feeder 3.

[0063] FIGS. 6A to 6D are diagrams showing a series of operations for setting a component storage tape on a tape feeder by a tape setting unit. The operations of FIGS. 6A to 6D are executed by the operator. In FIGS. 6A to 6D, the inside of the tape feeder 3 with the case 32 etc. of the feeder main body 31 removed is appropriately shown. In the operations described here, the operator moves the movable part 45 supporting the tape setting unit 41 with the component storage tape 8 attached from the withdrawal position L2 to the setting position L1 in the feed direction Df.

[0064] In the state of FIG. 6A, the movable part 45 is located at the withdrawal position L2 and is in a detached state where the swing frame 52 has detached from the push-up roller 55. In the state of FIG. 6B, although the movable part 45 moves forward from the withdrawal position L2, the swing frame 52 remains in the detached state of having detached from the push-up roller 55.

[0065] In the state of FIG. 6C (upper swing state), compared with the detached state, the movable part 45 moves forward, and the push-up roller 55 abuts on the front arm 523 of the swing frame 52 from below, pushing the front arm 523 upward. As a result, behind the swing axis 521, the swing frame 52 swings upward about the swing axis 521, and the guide roller 53 rises. Further, when the movable part 45 moves forward and reaches the setting position L1 (FIG. 6D), the above-described set state is achieved. Thereby, the component storage tape 8 is attached to the tape setting position Ls.

[0066] Thus, by setting the component storage tape 8 at the tape set position Ls, the loading in step S13 can be executed. Further, after executing the loading, the operator can drop the component storage tape 8 attached to the tape set position Ls from the upper introduction path 343 shown in FIG. 3 to the lower introduction path 345 by executing the operations shown in FIGS. 7A to 7D.

[0067] FIGS. 7A to 7D are diagrams showing a series of operations for dropping the component storage tape from the tape set position. The operations shown in FIGS. 7A to 7D are executed by the operator. In FIGS. 7A to 7D, the inside of the tape feeder 3 with the case 32 etc. of the feeder body 31 removed is appropriately shown.

[0068] In the state of FIG. 7A, the movable part 45 is located at the pull-out position L2, and the swing frame 52 is in a detached state separated from the push-up roller 55. In this detached state, as described above with reference to FIGS. 4A to 4C, the operator separates the support plate 422 of the side support member 42 and the support plate 432 of the side support member 43 in the width direction Dw to form a gap C, and drops the component storage tape 8 through this gap C (FIG. 7B).

[0069] In the state of FIG. 7B (tape dropping state), the movable part 45 is located at the pull-out position L2, and the swing frame 52 is in a detached state separated rearward from the push-up roller 55. Further, the component storage tape 8 dropped from the tape set unit 41 is located below the correction roller 51 and above the guide roller 53. In other words, the component storage tape 8 pulled out rearward from the feeder body 31 passes below the correction roller 51 and reaches above the guide roller 53.

[0070] In the state of Fig. 7C (upper swing state), compared with the tape dropping state of Fig. 7B, the movable part 45 moves forward, and the push-up roller 55 contacts the front arm 523 of the swing frame 52 from below, pushing up the front arm 523 upward. As a result, behind the swing axis 521, the swing frame 52 swings upward about the swing axis 521, and the guide roller 53 rises while contacting the component storage tape 8 from below.

[0071] When the movable part 45 further moves forward and reaches the set position L1 (Fig. 7D), the above set state is achieved. In this set state, the guide roller 53 contacts the component storage tape 8 from below and bends the component storage tape 8 to wind the component storage tape 8. Further, the correction roller 51 located in front of the guide roller 53 contacts the component storage tape 8 from above below the guide roller 53 and bends the component storage tape 8 to wind the component storage tape 8. Also, the correction roller 54 located in front of the correction roller 51 contacts the component storage tape 8 from below above the correction roller 51 and bends the component storage tape 8 to wind the component storage tape 8. As a result, the component storage tape 8 is conveyed along the correction path 59 that descends from the guide roller 53 to the correction roller 51 and then rises from the correction roller 51 to the correction roller 54 from the upstream side to the downstream side in the feed direction Df. Further, downstream of the correction roller 54 in the feed direction Df, the component storage tape 8 merges with the supply path 344 at the merging point 342 and is conveyed toward the component supply position Lf.

[0072] Also, a tape support portion 411 protruding downward is provided at the rear end of the tape set unit 41. On the other hand, in the set state of Fig. 7D, the tape support portion 411 contacts the component storage tape 8 from above, and the guide roller 53 contacts the component storage tape 8 from below. That is, the component storage tape 8 is sandwiched and supported between the tape support portion 411 and the guide roller 53.

[0073] With the component storage tape 8 thus set in the correction path 59, the operator can set a new component storage tape 8 at the tape set position Ls by performing the operations shown in FIGS. 8A to 8C.

[0074] FIGS. 8A to 8C are diagrams showing a series of operations for setting a new component storage tape at the tape set position. The operations in FIGS. 8A to 8C are performed by the operator. In FIGS. 8A to 8C, the inside of the tape feeder 3 with the case 32 of the feeder main body 31 removed is appropriately shown. Also, the component storage tape 8 already loaded in the tape feeder 3 is labeled 8A, and the component storage tape 8 to be newly attached to the tape set position Ls is labeled 8B.

[0075] In the state of FIG. 8A, the movable part 45 is located at the pull-out position L2, and the swing frame 52 is in a disengaged state where it is separated from the push-up roller 55 to the rear side. Also, compared with the set state, the correction roller 51 is separated from the correction roller 54 to the rear side, and the correction path 59 is released. However, even in the state where the correction path 59 is released, the component storage tape 8A passes under the correction roller 51 and reaches above the guide roller 53. Also, the component storage tape 8B is attached to the tape set unit 41.

[0076] In the state of FIG. 8B (upper swing state), compared with the state of FIG. 8A, the movable part 45 moves forward, and the push-up roller 55 contacts the front arm 523 of the swing frame 52 from below and pushes the front arm 523 upward. As a result, behind the swing axis 521, the swing frame 52 swings upward around the swing axis 521, and the guide roller 53 rises while contacting the component storage tape 8 from below.

[0077] When the movable part 45 further moves forward and reaches the set position L1 (FIG. 8C), the above-described set state is achieved. In this set state, the component storage tape 8A is set in the correction path 59, and the component storage tape 8B is set at the tape set position Ls.

[0078] As described above, by positioning the movable part 45 at the set position L1, a setting operation for setting the component storage tape 8 on the correction path 59 can be executed, and by moving the movable part 45 rearward from the set position L1, a release operation for releasing the component storage tape 8 from the correction path 59 can be executed. Subsequently, the setting operation and the release operation will be described.

[0079] FIG. 9A is a diagram schematically showing the state during the execution of the setting operation. The guide roller 53, the correction roller 51, and the correction roller 54 are arranged in order from the upstream side to the downstream side in the feed direction Df. As shown in the figure, the guide roller 53 has a larger outer shape than the correction roller 51 and the correction roller 54. The guide roller 53 contacts the back surface 812 of the tape of the component storage tape 8 from below to bend the component storage tape 8, and winds the component storage tape 8 in the winding range W53. The correction roller 51 on the downstream side of the guide roller 53 in the feed direction Df contacts the front surface 811 of the tape of the component storage tape 8 from above to bend the component storage tape 8, and winds the component storage tape 8 in the winding range W51. The correction roller 54 on the downstream side of the correction roller 51 in the feed direction Df contacts the back surface 812 of the tape of the component storage tape 8 from below to bend the component storage tape 8, and winds the component storage tape 8 in the winding range W54.

[0080] The guide roller 53 and the correction roller 54 protrude above the correction roller 51. Then, the component storage tape 8 conveyed in the feed direction Df descends from the winding range W53 of the guide roller 53 to the winding range W51 of the correction roller 51, and then ascends from the winding range W51 of the correction roller 51 to the winding range W54. In this way, the correction path 59 by the guide roller 53, the correction roller 51, and the correction roller 54 is formed. The guide roller 53, the correction roller 51, and the correction roller 54 rotate following the component storage tape 8 conveyed in the feed direction Df along the correction path 59.

[0081] FIG. 9B is a diagram schematically showing the state when the release operation is being executed. Compared with the state of FIG. 9A, the correction roller 51 and the guide roller 53 have moved to the rear side, and further, the guide roller 53 has swung downward. Therefore, the component storage tape 8 is separated downward from the correction roller 51, and the correction path 59 is released.

[0082] Note that when the setting operation is being executed, it contacts the component storage tape 8 over the entire width direction Dw. On the other hand, each of the correction roller 51 and the correction roller 54 is an end contact roller that contacts the component storage tape 8 at the end in the width direction Dw.

[0083] FIG. 10 is a diagram showing an example of the end contact roller. In the "Perspective view" column of FIG. 10, a perspective view of the end contact roller 91 is shown, and in the "Side view" column of FIG. 10, a side view of the end contact roller 91 is shown. The end contact roller 91 has a maximum diameter portion 912 having the largest outer shape and a small diameter portion 913 having an outer shape that becomes smaller as it moves away from the maximum diameter portion 912 in the center line direction of the end contact roller 91. Both the correction roller 51 and the correction roller 54 are the end contact roller 91. However, between the correction roller 51 and the correction roller 54, the directions in the width direction Dw are reversed, and they contact the component storage tape 8 on the opposite side in the width direction Dw.

[0084] FIG. 11 is a diagram schematically showing a comparison between two correction rollers. As shown in the upper column of FIG. 11, the correction roller 54 has a maximum diameter portion 542 (maximum diameter portion 912) on the left side Dwl of the width direction Dw, and a small diameter portion 543 (small diameter portion 913) on the right side Dwr of the width direction Dw from the maximum diameter portion 542. Then, the maximum diameter portion 542 of the correction roller 54 contacts the tape back surface 812 of the component storage tape 8, and the small diameter portion 543 of the correction roller 54 is separated from the tape back surface 812 of the component storage tape 8. As a result, the component storage tape 8 bends toward the center side of the correction roller 54 as it goes toward the right side Dwr. Note that the maximum diameter portion 542 of the correction roller 54 contacts the component storage tape 8 at the peripheral portion 84 that has deviated from the pocket forming portion 83 in the component storage tape 8.

[0085] As shown in the lower column of FIG. 11, the correction roller 51 has a maximum diameter portion 512 (maximum diameter portion 912) on the right side Dwr in the width direction Dw, and a small diameter portion 513 (small diameter portion 913) on the left side Dwl in the width direction Dw from the maximum diameter portion 512. Then, the maximum diameter portion 512 of the correction roller 51 contacts the tape surface 811 of the component storage tape 8, and the small diameter portion 513 of the correction roller 51 is separated from the tape surface 811 of the component storage tape 8. As a result, the component storage tape 8 bends so as to go toward the center side of the correction roller 51 as it goes toward the left side Dwl.

[0086] In this way, by each of the correction roller 54 and the correction roller 51 contacting the component storage tape 8 at the end on the opposite side in the width direction Dw, the component storage tape 8 is bent to the opposite side. As a result, the component storage tape 8 conveyed in the feed direction Df from the correction roller 51 to the correction roller 54 is twisted in the width direction Dw. Thus, the winding distortion of the component storage tape 8 is corrected by the correction rollers 51 and 54.

[0087] In the embodiment described above, with respect to the feed sprocket 37 (sprocket) that conveys the component storage tape 8 in the feed direction Df, the correction rollers 51 and 54 (correction unit) provided upstream of the feed direction Df correct the winding distortion of the component storage tape 8. Therefore, the correction rollers 51 and 54 correct the winding distortion of the component storage tape 8 passing through the correction rollers 51 and 54 by being pulled by the feed sprocket 37. In particular, there are provided a correction roller 54 (first contact member) that bends the component storage tape 8 by contacting the tape back surface 812 (lower surface) of the component storage tape 8, and a correction roller 51 (second contact member) that bends the component storage tape 8 by contacting the tape front surface 811 (upper surface) of the component storage tape 8. Further, the correction roller 54 contacts the end portion (one end portion) on the left side Dwl in the width direction Dw of the component storage tape 8 and does not contact the component storage tape 8 on the right side Dwr (the other end side) from the end portion on the left side Dwl. Also, the correction roller 51 contacts the end portion on the right side Dwr in the width direction Dw of the component storage tape 8 and does not contact the component storage tape 8 on the left side Dwl (one end side) from the end portion on the right side Dwr. Therefore, the correction roller 54 applies a force biased to the left side Dwl to the component storage tape 8, and the correction roller 51 applies a force biased to the right side Dwr to the component storage tape 8. As a result, a force that twists the component storage tape 8 in the width direction Dw acts on the component storage tape 8 passing between the correction roller 51 and the correction roller 54 while being pulled by the feed sprocket 37. Thereby, it is possible to reliably correct the winding distortion of the component storage tape 8.

[0088] Further, the correction roller 54 (first contact roller) rotates following the component storage tape 8 conveyed to the feed sprocket 37. This correction roller 54 has a maximum diameter portion 542 (first tape contact portion) that contacts the component storage tape 8 at the end on the left side Dwl in the width direction Dw. And, among the correction rollers 54, the small diameter portion 543 on the right side Dwr in the width direction Dw from the maximum diameter portion 542 has an outer shape smaller than that of the maximum diameter portion 542 and is separated from the component storage tape 8. With such a configuration, by using the correction roller 54, a force biased to the left side Dwl can be accurately applied to the component storage tape 8 to twist the component storage tape 8 in the width direction Dw, and the winding distortion of the component storage tape 8 can be surely corrected.

[0089] Further, the outer shape of the correction roller 54 is the largest at the maximum diameter portion 542 and has a tapered shape that becomes smaller as it goes from the maximum diameter portion 542 toward the right side Dwr in the width direction Dw. When the correction roller 54 having such an outer shape is used, a force biased to the left side Dwl can be accurately applied to the component storage tape 8 from the maximum diameter portion 542 having the maximum diameter. In particular, since the correction roller 54 has a tapered shape that becomes smaller as it goes from the maximum diameter portion 542 toward the right side Dwr, even if the component storage tape 8 comes off from the maximum diameter portion 542, the component storage tape 8 can be supported by the small diameter portion 513 to prevent the component storage tape 8 from completely falling off.

[0090] Further, the correction roller 54 contacts the component storage tape 8 at the peripheral edge portion 84 (one end portion) that is out of the pocket 85 in the width direction Dw and does not contact the pocket 85. With such a configuration, it is possible to suppress the correction roller 54 from affecting the posture of the component E in the pocket 85 and the like.

[0091] Further, the correction roller 51 (first contact roller) rotates following the component storage tape 8 conveyed to the feed sprocket 37. This correction roller 51 has a maximum diameter portion 512 (second tape contact portion) that contacts the component storage tape 8 at the end of the right side Dwr in the width direction Dw. And, among the correction roller 51, the small diameter portion 513 on the left side Dwl in the width direction Dw from the maximum diameter portion 512 has an outer shape smaller than that of the maximum diameter portion 512 and is separated from the component storage tape 8. With such a configuration, by using the correction roller 51, it is possible to accurately apply a force biased to the right side Dwr to the component storage tape 8, twist the component storage tape 8 in the width direction Dw, and reliably correct the winding distortion of the component storage tape 8.

[0092] Further, the outer shape of the correction roller 51 is the largest at the maximum diameter portion 512 and has a tapered shape that becomes smaller as it goes from the maximum diameter portion 512 toward the left side Dwl in the width direction Dw. When the correction roller 51 having such an outer shape is used, it is possible to accurately apply a force biased to the right side Dwr to the component storage tape 8 from the maximum diameter portion 512 having the maximum diameter. In particular, since the correction roller 51 has a tapered shape that becomes smaller as it goes from the maximum diameter portion 512 toward the left side Dwl, even if the component storage tape 8 comes off from the maximum diameter portion 512, the small diameter portion 513 supports the component storage tape 8 and suppresses the complete dropout of the component storage tape 8.

[0093] Also, in the feed direction Df, the correction roller 51 contacts the component storage tape 8 upstream (rear side) of the correction roller 54. With such a configuration, it is possible to apply a twisting force in the width direction Dw to the component storage tape 8 that moves from the correction roller 51 to the correction roller 54 while being pulled by the feed sprocket 37. Thereby, the winding distortion of the component storage tape 8 can be reliably corrected.

[0094] Further, a guide roller 53 (guide member) is provided which curves the component storage tape 8 by contacting the component storage tape 8 from below on the upstream side (rear side) of the correction rollers 51 and 54 in the feed direction Df. This guide roller 53 protrudes above the correction roller 51, and the correction roller 54 protrudes above the correction roller 51 (when the setting operation is executed). With such a configuration, the component storage tape 8 can be pulled by the feed sprocket 37 while curving the component storage tape 8 in an S shape so as to descend from the guide roller 53 to the correction roller 51 and then ascend from the correction roller 51 to the correction roller 54. Therefore, it is advantageous for reliably correcting the winding distortion of the component storage tape 8.

[0095] Also, there are provided a tape set unit 41 that detachably supports a component storage tape 8 at a predetermined tape set position Ls, and a loading sprocket 35 (loading execution unit) that executes loading to convey the component storage tape 8 supported at the tape set position Ls by the tape set unit 41 toward a feed sprocket 37 and engage it with the feed sprocket 37. On the other hand, the correction rollers 51 and 54 correct the curl of the component storage tape 8 removed from the tape set position Ls after loading is executed. The tape feeder 3 (component supply device) configured in this way removes the component storage tape 8 from the tape set position Ls when the remaining number of components E on the component storage tape 8 conveyed from the tape set position Ls to the feed sprocket 37 decreases, and attaches a new component storage tape 8 to the tape set position Ls, thereby being able to prepare for the out-of-component situation of the component storage tape 8. Then, the component storage tape 8 that has run out of components is conveyed in the feed direction Df and discharged from the tape feeder 3. On the other hand, the correction rollers 51 and 54 are configured to correct the curl of the component storage tape 8 removed from the tape set position Ls, and can correct the curl of the end portion of the component storage tape 8. As a result, the following advantages can be obtained. That is, the end portion of the component storage tape 8 is wound around the inside of the component supply reel 7, so it has a strong curl. Therefore, it is important to correct the curl of the end portion of the component storage tape 8, and the curl of this end portion can be reliably corrected.

[0096] Further, the feed sprocket 37 conveys the component storage tape 8 engaged with the feed sprocket 37 by the execution of loading in the feed direction Df. And the component storage tape 8 supported at the tape set position Ls is conveyed along the loading path 341 from the tape set position Ls toward the feed sprocket 37. Also, the component storage tape 8 removed from the tape set position Ls passes through the lower introduction path 345 provided below the loading path 341, and then merges into the loading path 341 at the merging point 342 in the middle of the loading path 341 and heads toward the feed sprocket 37. On the other hand, the correction rollers 51 and 54 correct the curl of the portion of the component storage tape 8 removed from the tape set position Ls before reaching the merging point 342. In such a configuration, since the correction rollers 51 and 54 are provided separately from the loading path 341, during loading, the influence of the resistance generated due to the correction of the curl by the correction rollers 51 and 54 can be eliminated, and smooth loading can be executed.

[0097] Also, a feeder body 31 (apparatus body) that rotatably supports the feed sprocket 37 is provided, and the tape set unit 41 is movable forward and backward in the feed direction Df with respect to the feeder body 31. And the correction rollers 51 and 54 execute a setting operation (FIG. 9A) of setting the component storage tape 8 to the correction path 59 and a releasing operation (FIG. 9B) of releasing the component storage tape 8 from the correction path 59 in accordance with the forward and backward movement (movement in the feed direction Df) of the tape set unit 41. Here, the correction path 59 is a path in which the end of the left side Dwl of the component storage tape 8 contacts the maximum diameter portion 542 and the end of the right side Dwr of the component storage tape 8 contacts the maximum diameter portion 512. In such a configuration, in a scene where the correction of the component storage tape 8 is not required, the correction can be appropriately released.

[0098] In addition, a movable part 45 that can move forward and backward with respect to the feeder main body 31 together with the tape set unit 41 is provided. In contrast, the correction rollers 51 and 54 perform a setting operation in accordance with the movable part 45 being positioned at the tape set position Ls, and perform a release operation in accordance with the movable part 45 moving from the tape set position Ls to the rear side (release side) away from the feeder main body 31. With such a configuration, the setting operation and the release operation can be executed by a simple operation of moving the movable part 45 forward and backward.

[0099] In addition, a swing frame 52 (swing member) supported by the movable part 45 so as to be swingable about a swing shaft 521, and a guide roller 53 supported by the swing frame 52 on the rear side (release side) of the swing shaft 521 are provided. Then, in accordance with the movable part 45 moving from the rear side to the tape set position Ls, the rear side of the swing frame 52 member from the swing shaft 521 swings upward and the guide roller 53 rises. Along with this, the guide roller 53 sandwiches the component storage tape 8 between itself and the tape support portion 411 of the tape set unit 41, and guides the component storage tape 8 upstream of the correction rollers 51 and 54 in the feed direction Df. On the other hand, in accordance with the movable part 45 moving from the tape set position Ls to the rear side, the rear side of the swing frame 52 from the swing shaft 521 swings downward and the guide roller 53 descends. Along with this, the guide roller 53 separates from the tape support portion 411 of the tape set unit 41, and releases the sandwiching of the component storage tape 8 between the guide roller 53 and the tape support portion 411 of the tape set unit 41. With such a configuration, in accordance with the movable part 45 moving from the tape set position Ls to the rear side, the guide roller 53 separates from the tape support portion 411 of the tape set unit 41. Therefore, the component storage tape 8 sandwiched between the tape support portion 411 of the tape set unit 41 and the guide roller 53 can be released from between them, ensuring the workability of the operator with respect to the tape set unit 41.

[0100] In addition, a push-up roller 55 (push-up member) attached to the feeder body 31 is provided. As the movable part 45 moves to the tape set position Ls, the push-up roller 55 swings the swing frame 52 coming into contact with the push-up roller 55, thereby swinging the guide roller 53 upward. In such a configuration, by moving the movable part 45 to the tape set position Ls, the guide roller 53 can be swung upward to sandwich the component storage tape 8 between the guide roller 53 and the tape set position Ls. Therefore, while stably supporting the component storage tape 8, a twisting force can be applied to the component storage tape 8 to reliably correct the winding distortion of the component storage tape 8.

[0101] Further, the correction roller 51 is supported by the movable part 45. As the movable part 45 moves from the rear side (release side) to the set position L1, the guide roller 53 rises from behind the correction roller 51 to above the correction roller 51. Due to the upward movement of the guide roller 53, the component storage tape 8 rises in front of the guide roller 53, and the correction roller 51 contacts the component storage tape 8 from above, thereby executing the setting operation. Also, as the movable part 45 moves from the set position L1 to the rear side, the guide roller 53 descends from behind the correction roller 51 to below the correction roller 51, thereby executing the release operation. In such a configuration, a correction path 59 for correcting the component storage tape 8 can be formed by a simple operation such as moving the movable part 45 from the rear side to the set position L1.

[0102] As described above, in the present embodiment, the component mounter 1 corresponds to an example of the "component mounter" of the present invention, the head unit 27 corresponds to an example of the "mounting unit" of the present invention, the tape feeder 3 corresponds to an example of the "component supply device" of the present invention, the feeder main body 31 corresponds to an example of the "device main body" of the present invention, the loading path 341 corresponds to an example of the "loading path" of the present invention, the loading sprocket 35 corresponds to an example of the "loading execution unit" of the present invention, the feed sprocket 37 corresponds to an example of the "sprocket" of the present invention, the tape set unit 41 corresponds to an example of the "tape set unit" of the present invention, the movable part 45 corresponds to an example of the "movable part" of the present invention, the correction rollers 51 and 54 correspond to an example of the "correction part" of the present invention, the correction roller 51 corresponds to an example of the "second contact member" of the present invention, the correction roller 51 corresponds to an example of the "second contact roller" of the present invention, the maximum diameter part 512 corresponds to an example of the "second tape contact part" of the present invention, the swing frame 52 corresponds to an example of the "swing member" of the present invention, the swing shaft 521 corresponds to an example of the "swing shaft" of the present invention, the guide roller 53 corresponds to an example of the "guide member" of the present invention, the correction roller 54 corresponds to an example of the "first contact member" of the present invention, the correction roller 54 corresponds to an example of the "first contact roller" of the present invention, the maximum diameter part 542 corresponds to an example of the "first tape contact part" of the present invention, the push-up roller 55 corresponds to an example of the "push-up member" of the present invention, the component storage tape 8 corresponds to an example of the "component storage tape" of the present invention, the feed direction Df corresponds to an example of the "feed direction" of the present invention, the width direction Dw corresponds to an example of the "width direction" of the present invention, the left side Dwl corresponds to the "one end side" of the present invention, the right side Dwr corresponds to the "other end side" of the present invention, and the tape set position Ls corresponds to an example of the "tape set position" of the present invention.

[0103] Note that the present invention is not limited to the above-described embodiment, and various modifications can be made to the above-described embodiment without departing from the spirit thereof. For example, the following modification examples can be considered.

[0104] FIG. 12 is a diagram schematically showing a modified example of a tape feeder. The component storage tape 8 in the figure is provided with a tape discharge unit 39 that discharges the component storage tape 8 discharged from the front end 312 of the feeder body 31 to the waste box G. That is, this tape discharge unit 39 discharges the component storage tape 8 from which the component E has been taken out from the pocket 85 on the downstream side of the feed sprocket 37 in the feed direction Df. In particular, in this modified example, the tape discharge unit 39 only has the function of guiding the component storage tape 8 from the front end 312 of the feeder body 31 to the waste box G, and does not have the function of correcting the component storage tape 8.

[0105] In addition, various modifications can be made to the configuration of the end contact roller that can be used as the correction roller 51 or the correction roller 54. FIG. 13 is a diagram showing a modified example of the end contact roller.

[0106] The end contact roller 92 of the second example has a flange-shaped maximum diameter portion 922 having a maximum diameter, a cylindrical minimum diameter portion 923 having a reduced diameter, and a tapered diameter portion 924 whose diameter decreases in a tapered shape from the maximum diameter portion 922 toward the minimum diameter portion 923. This end contact roller 92 contacts the end of the component storage tape 8 at the maximum diameter portion 922 and is separated from the component storage tape 8 at the minimum diameter portion 923 and the tapered diameter portion 924.

[0107] The end contact roller 93 of the third example has a flange-shaped maximum diameter portion 932 provided at the end in the width direction, and a cylindrical portion 933 having a diameter smaller than the maximum diameter portion 932 and protruding in the width direction from the maximum diameter portion 932. The maximum diameter portion 932 contacts the end of the component storage tape 8, and the cylindrical portion 933 is separated from the component storage tape 8.

[0108] The end contact roller 94 of the fourth example has a maximum diameter portion 942 having the largest outer shape, and a small diameter portion 943 having an outer shape that becomes smaller as it moves away from the maximum diameter portion 942 in the center line direction of the end contact roller 94. In addition, a step is provided between the maximum diameter portion 942 and the small diameter portion 943.

[0109] Further, in the above-described embodiment, the tape support portion 411 contacts the component storage tape 8 in the set state (FIG. 7D), but it is not essential for these to contact in the set state, and they may be separated.

Explanation of Signs

[0110] 1... Component mounting machine 27... Head unit 3... Tape feeder 31... Feeder body 341... Loading path 35... Loading sprocket 37... Feed sprocket 41... Tape set unit 45... Movable part 51... Correction roller 512... Maximum diameter part 52... Swing frame 521... Swing axis 53... Guide roller 54... Correction roller 542... Maximum diameter part 55... Pushing-up roller 8... Component storage tape Df... Feed direction Dw... Width direction Dwl... Left side Dwr... Right side Ls... Tape set position

Claims

1. A sprocket that rotates while engaging with a component storage tape having a pocket for storing components, and conveys the component storage tape in the feed direction; A correcting unit that corrects the curl of the portion of the component storage tape that stores the components on the upstream side of the sprocket in the feed direction; Comprising; The correcting unit has a first contact member that bends the component storage tape by contacting the lower surface of the component storage tape, and a second contact member that bends the component storage tape by contacting the upper surface of the component storage tape; The first contact member contacts one end in the width direction of the component storage tape and does not contact the component storage tape on the other end side from the one end; The second contact member contacts the other end in the width direction of the component storage tape and does not contact the component storage tape on the one end side from the other end, a component supply device.

2. The first contact member is a first contact roller that rotates driven by the component storage tape conveyed to the sprocket; The first contact roller has a first tape contact portion that contacts the component storage tape at the one end in the width direction; The component supply device according to claim 1, wherein, among the first contact rollers, the portion on the other end side in the width direction from the first tape contact portion has an outer shape smaller than that of the first tape contact portion and is separated from the component storage tape.

3. The component supply device according to claim 2, wherein the outer shape of the first contact roller is the largest at the first tape contact portion and has a tapered shape that becomes smaller as it goes from the first tape contact portion to the other end side in the width direction.

4. The component supply device according to claim 2, wherein the first contact roller contacts the component storage tape at the one end that has come off the pocket in the width direction and does not contact the pocket.

5. The second contact member is a second contact roller that rotates driven by the component storage tape conveyed to the sprocket; The second contact roller has a second tape contact portion that contacts the component storage tape at the other end in the width direction; The component supply device according to claim 1, wherein, among the second contact rollers, the portion on the one end side in the width direction from the second tape contact portion has an outer shape smaller than that of the second tape contact portion and is separated from the component storage tape.

6. The outer shape of the second contact roller is the largest at the second tape contact portion, and has a tapered shape that becomes smaller as it goes from the second tape contact portion toward one end side in the width direction. The component supply device according to claim 5.

7. In the feed direction, the second contact member contacts the component storage tape upstream of the first contact member. The component supply device according to claim 1.

8. Further comprising a guide member that contacts the component storage tape from below upstream of the first contact member and the second contact member in the feed direction to bend the component storage tape, The guide member protrudes above the second contact member, The first contact member protrudes above the second contact member. The component supply device according to claim 7.

9. A tape set unit that detachably supports the component storage tape at a predetermined tape set position, A loading execution unit that executes loading by transporting the component storage tape supported at the tape set position by the tape set unit toward the sprocket and engaging it with the sprocket Further comprising, The correcting unit corrects the winding distortion of the component storage tape removed from the tape set position after the loading is executed. The component supply device according to claim 1.

10. The sprocket transports the component storage tape engaged with the sprocket by the execution of the loading in the feed direction, The component storage tape supported at the tape set position is transported along a loading path from the tape set position toward the sprocket, The component storage tape removed from the tape set position passes through a path provided below the loading path, and then merges into the loading path at a merging point in the middle of the loading path and is transported toward the sprocket, The correcting unit corrects the winding distortion of the portion of the component storage tape removed from the tape set position before reaching the merging point. The component supply device according to claim 9.

11. Comprising a device body that rotatably supports the sprocket, The tape set unit is movable forward and backward with respect to the device body, The correction unit executes a setting operation of setting the component storage tape on a correction path and a release operation of releasing the component storage tape from the correction path in accordance with the forward and backward movement of the tape set unit. The component supply device according to claim 9, wherein the correction path is a path in which one end of the component storage tape contacts the first contact member and the other end of the component storage tape contacts the second contact member.

12. It includes a movable part that can move forward and backward with respect to the device body together with the tape set unit. The component supply device according to claim 11, wherein the correction unit executes the setting operation in response to the movable part being located at the set position, and executes the release operation in response to the movable part moving from the set position to the release side away from the device body.

13. A swing member supported by the movable part so as to be swingable about a swing axis, A guide member supported by the swing member on the release side of the swing axis, further comprising: In response to the movable part moving from the release side to the set position, the release side of the swing member above the swing axis swings upward and the guide member rises, and the guide member sandwiches the component storage tape between the guide member and the tape set unit, and guides the component storage tape upstream of the first contact member and the second contact member in the feed direction. The component supply device according to claim 12, wherein in response to the movable part moving from the set position to the release side, the release side of the swing member above the swing axis swings downward and the guide member descends, and the guide member separates from the tape set unit, and releases the sandwiching of the component storage tape between the guide member and the tape set unit.

14. further comprising a push-up member attached to the device body, The component supply device according to claim 13, wherein the push-up member swings the guide member upward by swinging the swing member that comes into contact with the push-up member in response to the movable part moving to the set position.

15. The second contact member is supported by the movable part, In response to the movable part moving from the release side to the set position, the guide member rises above the second contact member on the release side of the second contact member and contacts the component storage tape from above, thereby executing the setting operation. The component supply device according to claim 13, wherein as the movable part moves from the set position toward the release side, the guide member descends below the second contact member on the release side of the second contact member, thereby executing the release operation.

16. The component supply device according to claim 1, further comprising a tape discharge unit that discharges a component storage tape from which a component has been taken out from the pocket on the downstream side of the sprocket in the feed direction. The tape discharge unit of the component supply device according to claim 1 does not correct the winding distortion of the component storage tape.

17. A component mounting machine comprising: the component supply device according to any one of claims 1 to 16; and a mounting unit that mounts a component supplied by the component supply device on a substrate.

18. A step of conveying the component storage tape in the feed direction by a sprocket that rotates while engaging with a component storage tape having pockets for storing components; and A step of correcting the winding distortion of a portion of the component storage tape that stores the components by a correcting unit on the upstream side of the sprocket in the feed direction. The correcting unit includes a first contact member that contacts the lower surface of the component storage tape to bend the component storage tape, and a second contact member that contacts the upper surface of the component storage tape to bend the component storage tape. The first contact member contacts one end in the width direction of the component storage tape and does not contact the component storage tape on the other end side of the one end. A method for correcting the winding distortion of a component storage tape, wherein the second contact member contacts the other end in the width direction of the component storage tape and does not contact the component storage tape on the one end side of the other end.

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