Tape processing device, feeder trolley, and component mounting system

Abstract

To provide a tape processing device, a feeder trolley, and a component mounting system that can reliably cut a used portion of a tape discharged from a tape feeder to a short length.SOLUTION: A tape processing device 23 includes a first tape cutting unit 31 that cuts a used portion of a tape CTZ discharged from a tape feeder 14 that transports a carrier tape CT containing parts BH and supplies the parts BH to a part supply position 14K, a chute 32 that passes a cut piece SD of the used portion of the tape CTZ that is cut by the first tape cutting unit 31 and falls, and a second tape cutting unit 33 that cuts the cut piece that has passed through the chute 32.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a tape processing device, a feeder carriage, and a component mounting system that cut off a used portion of a tape discharged from a tape feeder. [Background technology]

[0002] Conventionally, a component mounting system is configured to include a transport conveyor that is provided on a base and positions a board, a tape feeder that transports a tape containing components and supplies the components to a component supply position, and a mounting head that picks up the components supplied by the tape feeder and mounts them on a board. A used portion of the tape transported by the tape feeder after the components are picked up by the mounting head (used portion of the tape) is discharged from the tape feeder and cut by a tape processing device provided in the component mounting system. A tape cutting device that cuts the used portion of the tape to a predetermined length by intermittently reciprocating (advancing and retreating) a cutter in accordance with the pitch feed operation of the tape is often used (for example, see Patent Document 1 below), and the scraps of the tape cut by the tape processing device are sometimes collected through a collection path (for example, see Patent Document 2 below). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 7-226599 [Patent Document 2] JP 2022-185987 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the component mounting system described above, among the used portion of the tape discharged from the tape feeder, the portion that has disengaged from the sprocket of the tape feeder, including the end of the carrier tape, falls and is discharged by its own weight. Since this used portion of the tape that falls and is discharged proceeds at a faster speed than the used portion of the tape that is discharged while being pitch-fed while engaged with the sprocket of the tape feeder, if the used portion of the tape that has fallen and is not cut into a short length by the cutter enters the recovery path, there is a risk that the recovery path will be blocked and the tape will become jammed.

[0005] SUMMARY OF THE PRESENT DISCLOSURE An object of the present invention is to provide a tape processing device, a feeder carriage, and a component mounting system that can reliably cut a used portion of a tape discharged from a tape feeder to a short length. [Means for solving the problem]

[0006] The tape processing device of the present invention includes a first tape processing unit that cuts off a used portion of the tape discharged from a tape feeder that transports a tape containing components and supplies the components to a component supply position, a chute that passes through a cut piece of the used portion of the tape that is cut and falls by the first tape processing unit, and a second tape processing unit that cuts off the cut piece that has passed through the chute.

[0007] The feeder cart of the present invention includes a feeder mounting section to which a tape feeder that transports a tape containing components and supplies the components is mounted, and the tape processing device of the present invention described above.

[0008] The component mounting system of the present invention comprises a tape feeder that transports a tape containing components to supply the components, a component mounting section that picks up the components supplied by the tape feeder and mounts them on a substrate, and the tape processing device of the present invention described above.

[0009] Another component mounting system of the present invention comprises a tape feeder that transports a tape containing components to supply the components, a component mounting section that picks up the components supplied by the tape feeder and mounts them on a board, and the feeder cart of the present invention described above. Effect of the Invention

[0010] According to the present invention, the used portion of the tape discharged from the tape feeder can be reliably cut to a short length. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a side view of a component mounting system according to an embodiment of the present invention. [Diagram 2] FIG. 1 is a diagram showing a tape processing device provided in a component mounting system according to an embodiment of the present invention together with a part of a tape feeder. [Diagram 3] FIG. 2 is a block diagram showing a control system of the component mounting system according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 shows a component mounting system 1 in one embodiment of the present invention. The component mounting system 1 is an apparatus for mounting (mounting) components BH on the surface of a board KB, and includes a base 11, a transport conveyor 12, a feeder cart 13, a tape feeder 14, and a mounting head 15.

[0013] In Fig. 1, the transport conveyor 12 is provided on a base 11, receives the board KB sent from the upstream process side, transports it in a horizontal direction perpendicular to the plane of the paper in Fig. 1, and positions it at a predetermined work position. Hereinafter, the direction in which the transport conveyor 12 transports the board KB (left-right direction as seen from the worker OP) is referred to as the X direction, the direction perpendicular to the X direction in the horizontal plane (front-rear direction as seen from the worker OP) is referred to as the Y direction, and the up-down direction is referred to as the Z direction. In addition, within the front-rear direction (Y direction), the direction in which the board KB is located across the feeder cart 13 from the worker OP (rear direction) is referred to as the "front", and the opposite direction is referred to as the "rear".

[0014] In Fig. 1, feeder cart 13 is connected to the end of base 11 in the Y direction. Feeder cart 13 has feeder base 13F as a feeder mounting section on which a tape feeder is mounted at its upper part, and tape feeder 14 is detachably mounted to feeder base 13F. A plurality of tape feeders 14 can be mounted on feeder base 13F in an array in the X direction.

[0015] In Fig. 1, a reel RL is held on a feeder cart 13. A carrier tape CT, which is a tape containing components BH, is wound around the reel RL. The carrier tape CT has multiple component storage pockets (not shown) arranged at regular intervals, and each of the component storage pockets contains one component BH.

[0016] 1 and 2, tape feeder 14 incorporates sprocket 14S. Sprocket 14S has multiple feed pins 14P on its outer periphery (FIG. 2). A transport path (not shown) for carrier tape CT is provided within tape feeder 14, extending in the front-to-rear direction, and a tape entrance 14A, which is an entrance to the transport path, is provided at the rear end of tape feeder 14. Carrier tape CT pulled out from reel RL is inserted into the transport path from tape entrance 14A.

[0017] The tape feeder 14 intermittently rotates the sprocket 14S with the feed pins 14P engaged with the feed holes (not shown) of the carrier tape CT inserted from the tape inlet 14A. This causes the carrier tape CT to advance forward by a pitch, and the components BH stored on the carrier tape CT are sequentially positioned at a component supply position 14K set at the upper front part of the tape feeder 14. In this manner, the tape feeder 14 is configured to continuously supply the components BH to the component supply position 14K by intermittently rotating the sprocket 14S to pitch feed the carrier tape CT.

[0018] 1, mounting head 15 functions as a component mounting unit in component mounting system 1, and is equipped with nozzle 15a extending downward. Mounting head 15 is moved in a horizontal plane direction by head moving mechanism 16, which is, for example, an XY gantry mechanism, and picks up components BH supplied to component supply position 14K by tape feeder 14 by vacuum adsorbing them to the lower end of nozzle 15a, and then moves to above board KB positioned at the work position, and mounts the components BH on board KB.

[0019] The operations of the transport conveyor 12, tape feeder 14, mounting head 15, and head moving mechanism 16 in the component mounting system 1 are controlled by a mounting operation control unit 17a (FIG. 3) provided in a control device 17 provided in the base 11. When the feeder cart 13 is connected to the base 11, a device provided in the feeder cart 13 (a tape processing device 23 described later) and each tape feeder 14 attached to the feeder base 13F are electrically connected to the control device 17 and for signal transmission.

[0020] As described above, the carrier tape CT is transported by the tape feeder 14, and the used portion of the carrier tape CT after the components BH are taken out (picked up) by the mounting head 15 at the component supply position 14K is fed and discharged as a "used tape portion CTZ" from the tape outlet 14B located at the front end of the tape feeder 14 (FIG. 2). Then, when the feed hole located at the end of the carrier tape CT being transported passes through an engagement position 14G (FIG. 2) with the feed pin 14P of the sprocket 14S, the carrier tape CT disengages from the sprocket 14S and falls and is discharged from the tape outlet 14B due to its own weight.

[0021] 2, the component supply position 14K is located behind the engagement position 14G. Therefore, the carrier tape CT including the end of the carrier tape CT falls and is discharged by its own weight after all the components BH stored in the carrier tape CT have been taken out by the nozzle 15a, and the carrier tape CT that falls and is discharged becomes the used tape portion CTZ.

[0022] 2, an end detection sensor 40 that detects the end of the carrier tape CT transported by the sprocket 14S is provided inside the tape feeder 14. When the end detection sensor 40 detects the end of the transported carrier tape CT, it outputs an end detection signal to the control device 17 (FIG. 3).

[0023] When the control device 17 receives an end detection signal output from the end detection sensor 40, it calculates the number of pitch feed operations performed from the time of reception until the end of the carrier tape CT reaches the engagement position 14G and the carrier tape CT is dropped and discharged. This calculation of the number of pitch feed operations refers to the relationship between the distance from the position of the end detection sensor 40 to the engagement position 14G and the travel distance of the carrier tape CT per pitch feed. The control device 17 counts the number of pitch feed operations of the carrier tape CT performed after receiving the end detection signal from the end detection sensor 40, and determines that the carrier tape CT has been dropped and discharged from the tape feeder 14 when the counted number of pitch feed operations reaches the calculated number of pitch feeds.

[0024] 1 and 2, a tape guide plate 21 extending in the XZ plane is located in front of the tape outlet 14B. A duct 22 is provided below the tape guide plate 21 to guide the used tape portion CTZ discharged from the tape outlet 14B to directly below the tape outlet 14B, and a tape processing device 23 is provided below the duct 22. The tape guide plate 21, duct 22, and tape processing device 23 are provided on the feeder cart 13 in this embodiment.

[0025] The tape processing device 23 is a device that cuts a used tape portion CTZ discharged from a tape feeder 14 that transports a carrier tape CT and supplies components BH to a component supply position 14K. As shown in Fig. 2, the tape processing device 23 includes a first tape cutting unit 31, a chute 32, and a second tape cutting unit 33, which is a second tape processing unit, in a case 23C installed on the feeder cart 13. The chute 32 is provided below the first tape cutting unit 31, and the second tape cutting unit 33 is provided below the chute 32. A storage unit 34 that opens upward is provided below the second tape cutting unit 33.

[0026] 2, the first tape cutting section 31 is equipped with a fixed blade 31P and a movable blade 31Q. The fixed blade 31P and the movable blade 31Q are positioned opposite each other in the front-rear direction (Y direction) and are both positioned in a horizontal plane. The movable blade 31Q is reciprocated in the Y direction by the operation of a movable blade driving section 31S formed of, for example, an air cylinder.

[0027] The movable blade drive unit 31S is controlled by a cutting operation control unit 17b (FIG. 3) provided in the control device 17. The movable blade 31Q is reciprocated in the Y direction by the movable blade drive unit 31S, thereby repeatedly executing a cutting operation consisting of approaching and moving away from the fixed blade 31P, and cutting the used portion of the tape CTZ discharged from the tape outlet 14B of the tape feeder 14 through the duct 22 at intermittent timing.

[0028] Here, the speed at which the used tape portion CTZ sent and discharged from the tape feeder 14 descends (descent speed) is the same as the transport speed (pitch feed speed) of the carrier tape CT by the tape feeder 14, and the cutting operation control section 17b of the control device 17 cuts the used tape portion CTZ at a timing according to the transport speed of the carrier tape CT (for example, every time the pitch feed operation is performed once or several times), or cuts the used tape portion CTZ at a predetermined time interval. As a result, the used tape portion CTZ sent and discharged from the tape feeder 14 passes downward through the first tape cutting section 31 in a state where it is cut into cut pieces SD of a certain short length (about 3 to 4 cm).

[0029] On the other hand, the descent speed (fall speed) of the used tape portion CTZ dropped and discharged from the tape feeder 14 is faster than the transport speed of the carrier tape CT by the tape feeder 14 (i.e., the advancement speed of the used tape portion CTZ being fed and discharged). Therefore, there is a possibility that the used tape portion CTZ dropped and discharged from the tape feeder 14 passes directly between the fixed blade 31P and the movable blade 31Q of the first tape cutting section 31, and the length of the used tape portion CTZ has a length (approximately 30 cm) equivalent to the distance from the engagement position 14G to the position between the fixed blade 31P and the movable blade 31Q of the first tape cutting section 31, so that the length of the used tape portion CTZ after passing through the first tape cutting section 31 is much longer than the length of the cut piece SD generated when the used tape portion CTZ fed and discharged from the tape feeder 14 is cut.

[0030] The chute 32 has a shape that narrows downward as it goes down. The chute 32 has a function of passing downward the cut piece SD of the used tape portion CTZ that is cut by the first tape cutting unit 31 and falls under its own weight.

[0031] The second tape cutting unit 33 has a configuration in which two closely arranged cylindrical rotary blades 33R are rotated in opposite directions (counter-rotated) by a drive motor 33M. While rotating the two rotary blades 33R counter-rotatingly, the second tape cutting unit 33 pinches a cut piece SD of the used tape portion CTZ that has fallen through the chute 32 between the two rotary blades 33R, thereby cutting the cut piece SD into strips SH of shorter length. The strips SH that are generated by being cut by the two rotary blades 33R fall under their own weight.

[0032] The operation of the drive motor 33M, i.e., the rotational operation of the two rotary blades 33R, is controlled by the cutting operation control section 17b of the control device 17. Since the second tape cutting section 33 cuts the cut piece SD of the used tape portion CTZ, the resulting strip SH naturally has a length shorter than the cut piece SD.

[0033] A large number of small pieces SH generated when the cut pieces SD of the used tape portion CTZ are cut by the second tape cutting unit 33 each fall by its own weight and are stored in a storage unit 34 located below the second tape cutting unit 33. The storage unit 34 may be a box-shaped member that is detachable from the feeder cart 13, or may be a space that forms part of a recovery path (not shown) that extends outside the feeder cart 13 along the floor surface.

[0034] In this manner, the tape processing device 23 provided in the component mounting system 1 (feeder cart 13) in this embodiment includes a first tape cutting unit 31 as a first tape processing unit, a chute 32, and a second tape cutting unit 33 as a second tape processing unit, and the used tape portion CTZ, which is the used portion of the carrier tape CT discharged from the tape feeder 14, is cut by the first tape cutting unit 31 into a cut piece SD, and the cut piece SD that has passed downward through the chute 32 is cut by the second tape cutting unit 33 into a shorter strip SH. Therefore, according to the tape processing device 23 in this embodiment, the used tape portion CTZ discharged from the tape feeder 14 can be reliably cut to a short length, and when cuttings of the used tape portion CTZ are sent to another location through the recovery path, a situation in which tape clogging occurs in the recovery path can be prevented.

[0035] Incidentally, in the tape processing device 23 configured as described above, the second tape cutting unit 33 further cuts the cut piece SD generated when the first tape cutting unit 31 cuts the used tape portion CTZ after the cut piece SD has passed the chute 32, so the first tape cutting unit 31 and the second tape cutting unit 33 do not necessarily need to operate in conjunction with each other. For this reason, the cutting operation control unit 17b of the control device 17 can operate the first tape cutting unit 31 and the second tape cutting unit 33 independently of each other.

[0036] When the first tape cutting unit 31 and the second tape cutting unit 33 are operated independently of each other, the first tape cutting unit 31 can be operated continuously while the used tape portion CTZ is being discharged from the tape feeder 14, and the second tape cutting unit 33 can be operated temporarily. In this way, the second tape cutting unit 33 does not need to be operated all the time, and electricity usage costs can be reduced.

[0037] Furthermore, in the case where the second tape cutting unit 33 is operated temporarily as described above, the second tape cutting unit 33 may start operation (cutting operation) when a portion including the end of the carrier tape CT of the used tape portion CTZ is discharged from the tape feeder 14. As described above, the control device 17 can grasp the state in which the carrier tape CT has dropped and been discharged from the tape feeder 14 based on information from the end detection sensor 40, and therefore the above control can be realized by starting the cutting operation by the second tape cutting unit 33 using the time when the carrier tape CT has dropped and been discharged as a trigger.

[0038] As described above, the tape processing device 23 included in the component mounting system 1 (feeder cart 13) in this embodiment can reliably cut the used tape portion CTZ discharged from the tape feeder 14 to a short length. This also makes it possible to prevent the tape from clogging in the recovery path when cuttings of the used tape portion CTZ are sent to another location through the recovery path.

[0039] Although the embodiment of the present invention has been described so far, the present invention is not limited to the above, and various modifications are possible. For example, in the above embodiment, the tape processing device 23 is provided on the feeder cart 13, but it may be provided in a place other than the feeder cart 13 of the component mounting system 1 (for example, as a part of a device in the base 11, or as a device separate from the base 11). That is, the component mounting system 1 may be configured to include a tape feeder 14 that conveys the carrier tape CT containing the components BH and supplies the components BH, a component mounting unit (mounting head 15) that picks up the components BH supplied by the tape feeder 14 and mounts them on the board KB, and the tape processing device 23. If the tape processing device 23 is provided on the feeder cart 13, the component mounting system 1 will be configured to include the tape feeder 14, the component mounting unit, and the feeder cart 13.

[0040] In the above embodiment, the second tape cutting section 33 is configured with two cylindrical rotary blades 33R arranged close to each other and rotated in opposite directions by the drive motor 33M, but it may be configured with a fixed blade and a movable blade, like the first tape cutting section 31. However, if the second tape cutting section 33 is configured with a fixed blade and a movable blade, there is a risk that the cut piece SD that has passed through the chute 32 and fallen will fall directly (without being cut) between the fixed blade and the movable blade. In contrast, if the second tape cutting section 33 is configured with two rotary blades 33R, the cut piece SD will not fall between the two rotary blades 33R without being cut. For this reason, it is more preferable that the second tape cutting section 33 is configured with two adjacent rotary blades 33R. [Industrial Applicability]

[0041] A tape processing device, a feeder carriage, and a component mounting system are provided that can reliably cut a used portion of a tape discharged from a tape feeder to a short length. [Explanation of symbols]

[0042] 1 Component mounting system 12 Transport Conveyor 13 Feeder cart 13F Feeder base (feeder mounting part) 14 Tape Feeder 14K Parts supply position 14A Tape inlet 14B Tape exit 14S sprocket 14P Feed pin 15 Mounting head (part mounting section) 16 Head movement mechanism 17 Control device 17a Mounting operation control section 17b Cutting operation control section 21 Tape guide plate 22 Duct 23 Tape processing device 23C Case 31 First tape cutting unit (first tape processing unit) 31P fixed blade 31Q movable blade 31S Movable blade drive unit 32 Shooter 33 Second tape cutting unit (second tape processing unit) 33R Rotary blade 34 Storage unit 40 End detection sensor CT carrier tape (tape) CTZ Tape Used Part SD section SH Strips BH Parts KB board

Claims

1. a first tape processing unit that cuts off a used portion of the tape discharged from a tape feeder that transports a tape containing components and supplies the components to a component supply position; a chute through which a cut piece of the used portion of the tape that is cut and dropped by the first tape processing section passes; a second tape processing section for cutting the cut piece that has passed through the chute; A tape processing device comprising:

2. 2. The tape processing apparatus of claim 1, wherein the first tape processing section and the second tape processing section operate independently of each other.

3. 3. The tape processing apparatus according to claim 2, wherein the first tape processing section operates continuously while the used portion of the tape is being discharged from the tape feeder, and the second tape processing section operates temporarily.

4. 4. The tape processing apparatus according to claim 3, wherein the second tape processing section starts operation when a portion of the used portion of the tape that includes the end of the tape is discharged from the tape feeder.

5. 2 . The tape processing apparatus according to claim 1 , wherein the second tape processing section rotates two cylindrical rotary blades arranged adjacent to each other in opposite directions to sandwich the cut piece between the two rotary blades and cuts the cut piece.

6. a feeder mounting section to which a tape feeder is mounted for feeding a tape containing components and supplying the components; A tape processing device according to claim 1 ; A feeder cart equipped with

7. a tape feeder that conveys a tape containing components and supplies the components; a component mounting section that picks up the components supplied by the tape feeder and mounts them on a substrate; A tape processing device according to claim 1 ; A component mounting system comprising:

8. a tape feeder that conveys a tape containing components and supplies the components; a component mounting section that picks up the components supplied by the tape feeder and mounts them on a substrate; A feeder carriage according to claim 6; A component mounting system comprising:

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