JP7731091B2 - Parts supply device - Google Patents

Description

The present disclosure relates to a component supply device that supplies components to a component mounting device.

2. Description of the Related Art Conventionally, there is known a tape feeder that can continuously supply a succeeding carrier tape (a succeeding tape) to a component removal position after a preceding carrier tape (a preceding tape) that stores components.

For example, the tape feeder described in Patent Document 1 is equipped with a tape holding unit on the upstream side of the tape running path that holds the following tape whose leading edge is inserted into the tape inlet. The tape holding unit has a tape holding portion that can be displaced vertically by the operator, and is configured so that the following tape it is holding can fall downward by displacing the tape holding portion vertically.

When the leading tape is discharged from this tape feeder and the trailing tape becomes the leading tape, and the supply of components begins, the operator operates the tape holding unit to drop the leading tape from the tape holding unit and correct its position. This makes it possible to replenish the trailing tape. Then, the operator holds a new trailing tape in the tape holding unit and inserts its leading end into the tape inlet, completing the carrier tape replenishment process.

Japanese Patent Application Laid-Open No. 2019-117820

However, with conventional tape feeders, the operator manually releases the trailing tape downward, which can lead to the operator forgetting to release the tape. In this case, the component mounting device's mounting operations must be stopped while components cannot be replenished, potentially reducing productivity. Furthermore, because switching from the leading tape to the trailing tape is manually performed by the operator, it is difficult to automate or reduce the labor required for component supply to the component mounting device.

Therefore, the object of the present disclosure is to solve the above-mentioned conventional problems and to provide a component supply device that can improve productivity and automate or reduce the labor required to supply components to a component mounting device.

The component supply device disclosed herein has a first transport path, into which the carrier tape is inserted, and a second transport path located below the first transport path, each located upstream. The component supply device is equipped with a tape transport path where the first transport path and the second transport path converge to guide the carrier tape in a downstream direction; a first tape transport unit that sequentially transports the carrier tape in the tape transport path downstream of the position where the first transport path and the second transport path converge to a component removal position on the tape transport path; a tape holding unit that holds the carrier tape in at least a portion of the first transport path; a second tape transport unit that transports the carrier tape held in the tape holding unit in a downstream direction of the tape transport path; a tape retention release mechanism that drops the carrier tape held in the tape holding unit onto the second transport path; and a control unit that activates the tape retention release mechanism after the carrier tape transported by the second tape transport unit has been handed over to the first tape transport unit.

This disclosure makes it possible to provide a component supply device that can improve productivity and automate or reduce the labor required to supply components to a component mounting device.

1 is a schematic diagram of a component mounting apparatus according to an embodiment of the present disclosure; 1 is a schematic diagram of a component supply device according to an embodiment of the present disclosure; Enlarged view of the parts supply device Partial cross-sectional view of the parts supply device Bottom view of the tape holding unit of the component supply device FIG. 10 is a side view showing the configuration of a second tape transport unit and a tape holding release mechanism of the component supply device; FIG. 10 is a side view showing the configuration of a second tape transport unit and a tape holding release mechanism of the component supply device; FIG. 10 is a side view showing the configuration of a second tape transport unit and a tape holding release mechanism of the component supply device; FIG. 10 is a side view showing the configuration of a second tape transport unit and a tape holding release mechanism of the component supply device; FIG. 10 is a side view showing the configuration of a second tape transport unit and a tape holding release mechanism of the component supply device; 1A and 1B are explanatory diagrams illustrating the release of a carrier tape, in which (a) shows a state in which the carrier tape is held, (b) and (c) show states in which the movable member is displaced upward, (d) shows a state in which the carrier tape falls due to the displacement of the movable member, and (e) shows a state in which the movable member has returned to its original position. Enlarged view of the area around the shutter of the parts supply device FIG. 10 is a side view showing the configuration of the shutter and locking unit of the component supply device; 10A and 10B are side views showing the operation of the shutter and the locking portion of the component supply device; 10A and 10B are side views showing the operation of the shutter and the locking portion of the component supply device; Enlarged view of the tape stopper part of the component supply device 10 is a side view showing the operation of the tape stopper portion of the component supply device. 10 is a side view showing the operation of the tape stopper portion of the component supply device. Block diagram showing the configuration of the control system of the component supply device Flowchart showing the flow of tape supply by the component supply device FIG. 10 is a side view showing a modified example of the tape holding release mechanism of the component supply device; FIG. 10 is a side view showing a modified example of the tape holding release mechanism of the component supply device; 10A and 10B are explanatory diagrams illustrating the release of a carrier tape in a modified example, in which FIG. 10A shows a state in which the side wall portion holds the carrier tape at the tape holding position, FIG. 10B shows a state in which the carrier tape falls due to the displacement of the side wall portion to the release position, and FIG. 10C shows a state in which the side wall portion has returned to the tape holding position.

According to a first aspect of the present disclosure, a component supply device is provided, which includes a first transport path into which a carrier tape is inserted and a second transport path located below the first transport path, each located upstream of the first transport path, where the first transport path and the second transport path converge to guide the carrier tape in a downstream direction; a first tape transport unit that sequentially transports the carrier tape in the tape transport path downstream of the convergence of the first transport path and the second transport path to a component removal position on the tape transport path; a tape holding unit that holds the carrier tape in at least a portion of the first transport path; a second tape transport unit that transports the carrier tape held in the tape holding unit in a downstream direction of the tape transport path; a tape retention release mechanism that drops the carrier tape held in the tape holding unit onto the second transport path; and a control unit that drives the tape retention release mechanism after the carrier tape transported by the second tape transport unit has been handed over to the first tape transport unit.

According to a second aspect of the present disclosure, there is provided a component supply device as described in the first aspect, comprising: a first detection sensor that detects that a carrier tape has been inserted into a tape transport path; a second detection sensor that is positioned downstream of the first detection sensor in the tape transport path and detects that the carrier tape has arrived; and a third detection sensor that is positioned downstream of the second detection sensor in the tape transport path and detects that the carrier tape has arrived at a component removal position; and a control unit that activates the second tape transport unit based on the detection result of the first detection sensor detecting the carrier tape, stops the second tape transport unit at a predetermined timing after the second detection sensor detects the carrier tape, and further activates the first tape transport unit.

According to a third aspect of the present disclosure, a component supply device as described in the second aspect is provided, in which the control unit stops the first tape transport unit and drives the tape holding release mechanism based on the detection result of the third detection sensor detecting the carrier tape.

According to a fourth aspect of the present disclosure, there is provided a component supply device described in any one of the first to third aspects, wherein the tape holding portion is displaceable from a holding position where it holds the carrier tape to a release position where it releases its hold on the carrier tape, and the tape holding release mechanism displaces the tape holding portion to the release position.

According to a fifth aspect of the present disclosure, there is provided a component supply device as described in the fourth aspect, wherein the release position is a position above and away from the second conveying path.

According to a sixth aspect of the present disclosure, there is provided a component supply device as described in the fifth aspect, wherein the release position is a position laterally separated from the second conveying path.

According to a seventh aspect of the present disclosure, there is provided a component supply device described in any one of the first to sixth aspects, wherein the tape retention release mechanism operates using power from the drive source of the second tape transport unit.

According to an eighth aspect of the present disclosure, there is provided a component supply device as described in the seventh aspect, in which the second tape transport unit is provided with a motor capable of rotating forward and reverse as a drive source, and the control unit causes the second tape transport unit to transport the carrier tape in the downstream direction of the tape transport path when the motor is rotated forward, and the control unit drives the tape holding release mechanism by rotating the motor reversely.

The following describes exemplary embodiments of a component mounting device according to the present disclosure, with reference to the accompanying drawings. The present disclosure is not limited to the specific configurations of the following embodiments, and includes configurations based on similar technical concepts.

(Embodiment)
The configuration of a component mounting apparatus 1 according to an embodiment of the present disclosure will be described with reference to Fig. 1. In Fig. 1, two axial directions perpendicular to each other in a horizontal plane are shown: an X direction (a direction perpendicular to the plane of the paper in Fig. 1 ) in which the board is transported; and a Y direction (a direction perpendicular to the board transport direction in Fig. 1 ) in which the board is transported. In addition, a Z direction (a direction perpendicular to the horizontal plane in Fig. 1 ) is shown in which the height direction is perpendicular to the horizontal plane.

The configuration of the component mounting device 1 will be described with reference to Figure 1. The component mounting device 1 manufactures mounted boards with components mounted on them. A board transport mechanism 2 provided on the upper surface of the base 1a transports, positions, and holds a board 3 in the X direction. A mounting head 4 is installed above the board transport mechanism 2 and moves horizontally (X direction, Y direction) by a head movement mechanism (not shown). A carriage 5 is connected to the base 1a to the side of the board transport mechanism 2, and a plurality of tape feeders 6 are attached to the top of the carriage 5, lined up in the X direction.

A reel holder 9 is installed at the front of the carriage 5, below the tape feeder 6, to rotatably support a reel 8 around which a carrier tape 7 is wound, which stores components to be supplied to the component mounting device 1. The tape feeder 6 transports the carrier tape 7 stored on the reel 8 in the tape feed direction, supplying the components to the component pick-up position P1 by the mounting head 4. An identifier 8a that identifies the component stored on the carrier tape 7 is affixed to the reel 8. The identifier 8a is, for example, a two-dimensional barcode or an RFID tag.

The component mounting device 1 is equipped with a mounting control unit 10 that controls the board transport mechanism 2, mounting head 4, and head movement mechanism. The mounting control unit 10 sends component supply commands to the tape feeder 6 and controls the mounting head 4 and head movement mechanism to perform a component mounting operation in which the mounting head 4 retrieves components supplied to the component removal position by the tape feeder 6 and transfers and mounts them at the mounting point on the board 3 held by the board transport mechanism 2. In this way, the tape feeder 6 is a component supply device that supplies components stored on a carrier tape 7 to the component mounting device 1. The components stored on the carrier tape 7 are, for example, chip-type electronic components. A freely closable main body cover 11 is installed above the cart 5 to prevent workers from touching the moving mechanisms, such as the mounting head 4, during operation.

The component mounting device 1 further includes a reader device 15 that reads the information of the identifier 8a. The reader device 15 is, for example, a two-dimensional barcode reader or an RFID reader. The information of the identifier 8a read by the reader device 15 is sent to the mounting control unit 10. The mounting control unit 10 includes a matching unit 10a and a memory unit 10b. The mounting control unit 10 is composed of, for example, an arithmetic unit such as a processor or FPGA, and a memory or SSD.

The memory unit 10b stores information about parts to be replenished to the tape feeder 6. The comparison unit 10a compares the information about the identifier 8a read by the reader device 15 with the information about the parts to be replenished stored in the memory unit 10b. If the comparison unit 10a determines that the information about the identifier 8a matches the information about the parts to be replenished, it transmits a signal indicating a match to the feeder control unit 28 as a comparison result. If the comparison unit 10a determines that the information about the identifier 8a does not match the information about the parts to be replenished, it transmits a signal indicating a mismatch to the feeder control unit 28 as a comparison result.

In Figure 1, a collection box 12 is installed below the carriage 5 to collect empty carrier tapes 7 that have had components removed by the mounting head 4 and are discharged from the rear of the tape feeder 6. A discharge chute 13 is installed at the rear of the carriage 5 to guide the empty carrier tapes 7 discharged from the tape feeder 6 to the collection box 12. The discharge chute 13 is equipped with a cutting unit 14 that cuts the empty carrier tapes 7 to a predetermined length. The empty carrier tapes 7 discharged from the tape feeder 6 are cut by the cutting unit 14 and collected in the collection box 12.

<Tape feeder>
Next, the configuration of the tape feeder 6 will be described with reference to Figures 2 and 3. Figure 2 is a schematic diagram of the tape feeder 6 according to the embodiment. Figure 3 is a partially enlarged view of the tape feeder 6.

The tape feeder 6 includes a tape transport path 20, a first tape transport section 21, a second tape transport section 23, a tape holding section 26, and a tape holding release mechanism 34. The tape feeder 6 also includes an insertion port 20a for inserting the carrier tape 7 into the tape transport path 20, and an ejection port 20b for ejecting the carrier tape 7 from the tape transport path 20.

The tape transport path 20 guides the carrier tape 7, which is pulled out from the reel 8 and inserted into the tape feeder 6 through the insertion port 20a, to the component removal position P1 inside the tape feeder 6, and then to the ejection port 20b.

The insertion port 20a opens upstream in the tape feed direction of the tape feeder 6 (left side in Figure 2). The discharge port 20b opens downstream in the tape feed direction (right side in Figure 2). The tape transport path 20 is connected from the insertion port 20a to the discharge port 20b. The mounting head 4 removes components at a component removal position P1 located midway along the tape transport path 20.

During the continuous component mounting process, multiple carrier tapes 7, each stored on a single reel 8, are sequentially inserted through the insertion port 20a and supplied to the tape feeder 6, with each unit lot consisting of a carrier tape 7. Hereinafter, of the two carrier tapes 7 introduced through the insertion port 20a and fed along the tape transport path 20, the carrier tape 7 fed first will be referred to as the first tape 7p, and the carrier tape 7 fed after the first tape 7p will be referred to as the second tape 7s (see Figure 3). The tape transport path 20 includes a first transport path 20c, into which the carrier tape 7 is inserted on the upstream side, a second transport path 20d located below the first transport path 20c, and a third transport path 20e extending from the junction P2 of the second transport path 20d and the first transport path 20c to the discharge port 20b.

The first tape transport unit 21 transports the carrier tape 7 to the component removal position P1 on the downstream side of the tape transport path 20. The first tape transport unit 21 includes a first sprocket 21a that engages with the carrier tape 7 and a first motor 21b that rotates and drives the first sprocket 21a. A tape cover 22 is attached above the first tape transport unit 21, which holds the carrier tape 7 from above and is equipped with a peeling blade that exposes the components stored on the carrier tape 7. An opening is formed in the tape cover 22 at a position corresponding to the component removal position P1. When the first sprocket 21a causes the carrier tape 7 to run along the underside of the tape cover 22, the peeling blade exposes the components, and the exposed components are transported to an opening formed downstream, i.e., the component removal position P1. The method for exposing the components stored in the carrier tape 7 may be a method (full peeling method) in which a pair of rollers (not shown) is arranged downstream of the component removal position P1 on the tape transport path 20, and these rollers peel off the top tape sealing the components in the carrier tape 7. In the case of the full peeling method, it is not necessary to provide a peeling blade on the tape cover 22.

The second tape transport unit 23 feeds the carrier tape 7 inserted into the first transport path 20c from the insertion port 20a to the first tape transport unit 21. The second tape transport unit 23 is arranged upstream in the tape transport path 20. The second tape transport unit 23 includes, for example, a second motor 23a, a first gear 23b, a second gear 23c, a third gear 23d, a fourth gear 23e, a fifth gear 23f, and a second sprocket 23g.

The output gear 23aa of the second motor 23a engages with the first gear 23b. The second gear 23c is rotatably arranged coaxially with the first gear 23b and engages with the third gear 23d. The third gear 23d engages with the fourth gear 23e, which engages with the fifth gear 23f. The fifth gear 23f is rotatably fixed to the second sprocket 23g, which engages with the carrier tape 7. Therefore, the rotational driving force of the second motor 23a is transmitted from the first gear 23b to the second sprocket 23g via the fifth gear 23f.

On the upstream side, the tape transport path 20 has a first transport path 20c and a second transport path 20d. The first transport path 20c and the second transport path 20d converge at position P2. The carrier tape 7 supplied to the tape feeder 6 is first transported downstream of the tape transport path 20 along the first transport path 20c by the second tape transport unit 23. Eventually, when the carrier tape 7 is transported to the first tape transport unit 21, the carrier tape 7 is moved from the first transport path 20c to the second transport path 20d as the preceding first tape 7p. As a result, the first tape 7p is transported downstream of the tape transport path 20 from the second transport path 20d through the third transport path 20e, allowing the next second tape 7s to be inserted into the first transport path 20c.

The tape feeder 6 includes a tape stopper section 24, a shutter unit 27, and a lock section 45, each of which is disposed below the second tape transport section 23. The tape feeder 6 also includes a first sensor Sa1, a second sensor Sa2, and a third sensor Sa3.

The first sensor Sa1 detects that the carrier tape 7 inserted into the tape feeder 6 has reached a predetermined position on the third conveying path 20e downstream of the position P2 where the second conveying path 20d and the first conveying path 20c converge.

The second sensor Sa2 detects when the carrier tape 7 traveling along the tape transport path 20 reaches just before the component removal position P1. Therefore, the second sensor Sa2 is located downstream of the tape transport path 20 from the first sensor Sa1 and upstream of the third sensor Sa3.

The third sensor Sa3 detects when the carrier tape 7 traveling along the tape transport path 20 reaches the component removal position P1. The third sensor Sa3 is positioned, for example, downstream of the second sensor Sa2 and the first sprocket 21a of the first tape transport section. The first sensor Sa1 to the third sensor Sa3 are each optical sensors that detect the presence or absence of the carrier tape 7, such as a color sensor or a photo sensor.

The tape holding unit 26 supports the carrier tape 7 in at least a portion of the first transport path 20c and maintains the orientation of the carrier tape 7 as it is transported. See Figure 4. The tape holding unit 26 includes a first support unit 30, a second support unit 31, a plate-like member 32, and a movable member 33. For convenience, as shown in Figure 4, one side will be referred to as the left and the other as the right, facing the downstream direction in which the carrier tape 7 is transported in the tape feeder 6.

The first support portion 30 supports one side of the carrier tape 7 in the width direction from below. The first support portion 30 is formed on the right side of the plate-shaped member 32. The second support portion 31 supports the other side of the carrier tape 7 from below.

The plate-shaped member 32 extends in the tape feed direction and the vertical direction (Z direction). The inner surface (right side surface) of the plate-shaped member 32 is a guide surface that guides the left side surface of the carrier tape 7. The plate-shaped member 32 is fixed to the side wall of the tape feeder 6.

The movable member 33 has a plate-like shape and is connected so that it can swing up and down around the rotation axis 26a. The inner surface of the movable member 33 is a guide surface that guides the right side of the carrier tape 7.

A handle 38 equipped with a lever that can be operated by the operator's finger is formed on the top of the movable member 33. By lifting the handle 38 upward, the operator can lift the upstream side of the movable member 33 upward (see Figure 9). In this way, the movable member 33 can be displaced in the vertical direction relative to the plate-like member 32 to which it is fixed (see Figure 11).

In Figure 4, a rotating shaft 39 having a center of rotation parallel to the width direction of the carrier tape 7 is attached to the movable member 33. A second sprocket 23g is rotatably attached to the rotating shaft 39 via a one-way clutch 40. A plurality of pins 41a are provided on the left side of the outer circumferential surface of the second sprocket 23g (i.e., the side closer to the plate-shaped member 32). When the movable member 33 is in its initial position, the pins 41a of the second sprocket 23g engage with feed holes 7h formed in the carrier tape 7, whose underside is supported by the first support portion 30 and the second support portion 31.

The first support part 30 supports the side of the carrier tape 7 on which the feed holes 7h are formed from below. The second sprocket 23g, attached to the horizontal rotating shaft 39 via a one-way clutch 40, forms a locking part that engages with the feed holes 7h of the carrier tape 7 to lock the carrier tape 7 to the first support part 30.

The one-way clutch 40 allows the second sprocket 23g to rotate when the carrier tape 7 engaged with the second sprocket 23g moves on the tape holding portion 26 toward the insertion opening 20a, but does not allow rotation in the opposite direction. This prevents the carrier tape 7 from falling off the tape feeder 6. In this way, the movable member 33 is fitted with the second sprocket 23g, which is attached to a rotation shaft 39 whose rotation axis is horizontal via the one-way clutch 40.

A protrusion 42 protruding inward from the plate-shaped member 32 is formed on the inner surface of the plate-shaped member 32 at a position above the first support portion 30. The lower end of the protrusion 42 is formed with a taper 42a having a slope that approaches the inner surface of the plate-shaped member 32 downward (a slope that moves away from the right side surface of the plate-shaped member 32 upward). In other words, the horizontal width of the lower end of the protrusion 42 narrows as it extends downward.

In Figure 5, the downstream end of the second support part 31 is located upstream of the downstream end of the first support part 30. Furthermore, on the downstream side of the second support part 31, a notch 31a is formed, the side of which has a slope that approaches the inner surface of the movable member 33 as it approaches the downstream side. In other words, the horizontal width of one end of the second support part 31 on the insertion opening 20a side (downstream side) narrows as it approaches the insertion opening 20a side.

Next, the configuration of the tape holding release mechanism 34 will be described with reference to Figures 6 to 10. Figures 6 to 10 are side views showing the configuration of the second tape transport section 23 of the tape feeder 6 and the tape holding release mechanism 34.

The tape retention release mechanism 34 drops the carrier tape 7 held by the tape holding unit 26 on the first transport path 20c onto the second transport path 20d. The tape retention release mechanism 34 operates using the power of the second motor 23a of the second tape transport unit 23. The tape retention release mechanism 34 includes a ratchet mechanism 35 that rotates by the driving force of the second motor 23a, and a lever 36 that swings due to the ratchet mechanism 35.

The ratchet mechanism 35 consists of a ratchet gear 35a and a ratchet pawl 35b. The ratchet gear 35a is rotatably attached to the third gear 23d coaxially with the third gear 23d. Therefore, the ratchet gear 35a rotates together with the third gear.

The lever 36 is, for example, L-shaped, with a ratchet pawl 35b formed at one end and the other end connected to the downstream end of the movable member 33 of the tape holding unit 26. A rotation shaft 36a is provided in the center of the lever 36, and the lever 36 is attached to the tape feeder 6 via the second motor 23a so as to be swingable around the rotation shaft 36a.

6 and 7, when the second motor 23a rotates forward, the second motor 23a and ratchet gear 35a rotate counterclockwise. In this case, the ratchet gear 35a acts to lift the ratchet pawl 35b of the lever 36, so the ratchet pawl 35b continues to rotate freely without engaging with the ratchet gear 35a.

As shown in Figure 8, when the second motor 23a rotates in the reverse direction, the second motor 23a and the ratchet gear 35a rotate clockwise. In this case, the ratchet gear 35a acts to push down the ratchet pawl 35b of the lever 36, causing the ratchet pawl 35b to engage with the ratchet gear 35a and causing the lever 36 to rotate counterclockwise.

When the second motor 23a further rotates in the reverse direction, as shown in Figure 9, the ratchet gear 35a pushes down the ratchet pawl 35b of the lever 36, causing the lever 36 to rotate counterclockwise. This causes the lever 36 to push down the downstream end of the movable member 33 of the tape holding portion 26. As a result, the movable member 33 rotates clockwise around the rotation axis 26a, and the second support portion 31 moves upward to the release position P3.

Furthermore, as the second motor 23a continues to rotate in the reverse direction, as shown in Figure 10, the ratchet gear 35a continues to act to press down the ratchet pawl 35b of the lever 36, preventing the ratchet pawl 35b of the lever 36 from engaging with the ratchet gear 35a. Therefore, the lever 36 remains pressed downward on the downstream end of the movable member 33 of the tape holding portion 26, and the second support portion 31 of the tape holding portion 26 remains in the upper release position P3.

Next, when the second motor 23a rotates forward, the ratchet gear 35a acts to lift the ratchet pawl 35b of the lever 36, causing the ratchet gear 35a to engage with the ratchet pawl 35b of the lever 36 and rotate the lever clockwise. As a result, the lever 36 lifts the downstream end of the movable member 33 of the tape holding portion 26 upward, and the second support portion 31 moves back to its original position, the tape holding position.

Next, referring to Figure 11, the function of releasing the carrier tape 7 on the first transport path 20c from the tape holding unit 26 will be described. As shown in Figure 11(a), the carrier tape 7 is held by the tape holding unit 26 when the movable member 33 is located in its initial position and the second support member 31 is at the same height as the first support member 30. When releasing the carrier tape 7 on the first transport path 20c from the tape holding unit 26, the feeder control unit 28 reverses the rotation of the second motor 23a of the second tape transport unit 23. This causes the movable member 33 to rise together with the second support member 31 and the second sprocket 23g. The movable member 33 can also be raised by manually holding the handle 38 and lifting it upward.

As shown in Figure 11(b), as the movable member 33 rises, the carrier tape 7 moves upward while the lower surface of its right side is supported by the second support portion 31, and the upper surface of its left side comes into contact with the protrusion 42. As the movable member 33 rises further, the pin 41a of the second sprocket 23g disengages from the feed hole 7h of the carrier tape 7. As shown in Figure 11(c), as the carrier tape 7 rises further together with the movable member 33, the carrier tape 7 is pushed by the taper 42a of the protrusion 42 and twists counterclockwise while being displaced to a position (to the right) where it does not overlap with the first support portion 30.

As shown in Figure 11 (d), as the movable member 33 rises further, the twist in the carrier tape 7 increases, and eventually the right end of the carrier tape 7 slips off the second support portion 31. At this time, the right end of the carrier tape 7 slips off reliably, starting from the notch 31a on the downstream side of the second support portion 31. Furthermore, because the left end of the carrier tape 7 has been displaced to the right by the protrusion 42, the carrier tape 7 falls downward without getting caught on the first support portion 30 (shown by the dotted line in the figure).

The carrier tape 7 released from the tape holding unit 26 moves as the first tape 7p to the second transport path 20d formed below the first transport path 20c (see Figure 3). The carrier tape 7 is released from the tape holding unit 26, for example, before the carrier tape 7 is inserted into the tape feeder 6 and a component is removed from the component removal position P1. Once the carrier tape 7 (first tape 7p) has been released from the tape holding unit 26, the next carrier tape 7 (second tape 7s) can be inserted into the tape holding unit 26 at any time.

<Shutter unit>
Next, the shutter unit 27 will be described with reference to Figures 14 and 15. Figure 14 is a partially enlarged view of the shutter unit and its periphery. Figure 15 is a side view showing the configuration of the shutter unit 27 and the locking portion 45.

The shutter unit 27 prevents the carrier tape 7 inserted into the first transport path 20c from advancing until verification of the components on the carrier tape 7 is complete. The shutter unit 27 includes a shutter 27a, a pin 27b, a coil spring 27c, and a fourth sensor Sa4.

The shutter 27a contacts the carrier tape 7 to stop the advancement of the carrier tape 7. The shutter 27a comprises a shutter body 27e and a plate-shaped member 27f.

The shutter body 27e has an inclined portion 27ea against which the carrier tape 7 abuts, an elongated hole 27eb extending in the vertical direction, and a stepped portion 27ec that engages with the locking portion 45. A pin 27b is inserted into the elongated hole 27eb, and the shutter 27a can be displaced in the vertical direction along the elongated hole 27eb.

The plate-like member 27f extends upward from the shutter main body 27e. The fourth sensor Sa4 detects whether the shutter 27a is located at the tape stop position P4, where the advancement of the carrier tape 7 is stopped, or at the retracted position P5 above the tape stop position P4. The fourth sensor Sa4 is, for example, an optical sensor. When the shutter 27a is located at the tape stop position P4, the shutter 27a is lowered to the first transport path 20c, and therefore the fourth sensor Sa4 cannot detect the plate-like member 27f. When the shutter 27a is located at the retracted position P5, the shutter 27a is raised above the first transport path 20c, and therefore the fourth sensor Sa4 detects the plate-like member 27f.

The coil spring 27c biases the shutter 27a downward, i.e., the shutter body 27e so that the lower end of the shutter body 27e contacts the first transport path 20c. When the carrier tape 7 is transported downstream by the second tape transport unit 23, the carrier tape 7 lifts the shutter 27a against the spring force of the coil spring 27c and advances.

The locking unit 45 locks the displacement of the shutter 27a in accordance with the control of the feeder control unit 28. The locking unit 45 includes a solenoid 46, a lever 47, and a coil spring 48.

The solenoid 46 attracts the lever 47, which prevents the shutter 27a from moving, downstream, allowing the shutter 27a to move from the retracted position P5 to the tape stop position P4. The solenoid 46 includes a plunger 46a and a disc-shaped plate member 46b fixed to the tip of the plunger 46a. The plate member 46b of the solenoid 46 engages with the downstream end 47b of the lever 47. When the solenoid 46 receives a suction command from the feeder control unit 28, it displaces the plunger 46a to the suction position and displaces the lever 47 downstream. When the suction command from the feeder control unit 28 is removed, the solenoid 46 displaces the plunger 46a to its original release position.

The lever 47 is biased upstream, i.e., toward the shutter 27a, by a coil spring 48. When the plunger 46a of the solenoid 46 is in the released state, the upstream end 47a of the lever 47 engages with the stepped portion 27ec of the shutter body 27e. This prevents the shutter 27a from rising to the retracted position P5 and locks the movement of the shutter 27a.

When the placement control unit 10 verifies the component and finds that the component matches the component that should be supplied, the feeder control unit 28 sends a suction command to the solenoid 46. As a result, as shown in Figure 14, the solenoid 46 attracts the plunger 46a, displacing the lever 47 downstream. As a result, the upstream end 47a of the lever 47 disengages from the stepped portion 27ec of the shutter body 27e, unlocking the shutter 27a.

Even when the shutter 27a is unlocked, the shutter 27a is still biased downward by the coil spring 27c. However, the feeder control unit 28 stops issuing a suction command to the solenoid 46 and then sends a tape transport command to the second tape transport unit 23, causing the carrier tape 7 to be transported downstream. As a result, the leading edge of the carrier tape 7 pushes up the inclined portion of the shutter body 27e against the spring force of the coil spring 27c.

When the leading edge of the carrier tape 7 pushes the shutter body 27e upward, the plate-like member 27f of the shutter 27a also moves upward, and the fourth sensor Sa4g detects the plate-like member 27f. This makes it possible to detect that the carrier tape 7 is passing under the shutter 27a, i.e., that the carrier tape 7 is being transported from the first transport path 20c toward the third transport path 20e.

If the component matching performed by the mounting control unit 10 indicates that the component does not match the component that should be supplied, the feeder control unit 28 notifies the operator, for example, via the operation display panel 29, that the set reel 8 is incorrect. When the operator recognizes that the reel 8 is incorrect, they lift the handle 38 of the tape holding unit 26 and remove the incorrectly inserted carrier tape 7 from the first transport path 20c.

<Tape stopper part>
16 to 18, the configuration of the tape stopper unit 24 will be described. The tape stopper unit 24 stops the second tape 7s inserted in the first transport path 20c from advancing into the third transport path 20e when the first tape 7p is being transported along the second transport path 20d and the third transport path 20e.

The tape stopper portion 24 comprises a stopper 24a, a lever 24b, and a fifth sensor Sa5.

The stopper 24a is, for example, a plate-shaped member that can be displaced between a stop position P6 (see FIG. 17) that stops the advancement of the second tape 7s and a stopper release position P7 (see FIG. 18) that releases the stoppage of the advancement of the second tape 7s. The stopper 24a includes a contact portion 24aa, a tip portion 24ab, and a fulcrum 24ac. The contact portion 24aa contacts the tip of the second tape 7s when the stopper 24a is at stop position P6, a predetermined position on the first transport path 20c, and prevents the second tape 7s from moving downstream along the first transport path 20c.

The tip portion 24ab is the downstream portion of the stopper 24a and is the transmitted part that receives the power from the lever 24b to displace it from the stop position P6 to the stopper release position P7.

The fulcrum 24ac is the center of rotation for rotating the stopper 24a to the stop position P6 and the stopper release position P7. The fulcrum 24ac is located above the first conveying path 20c and upstream of the contact portion 24aa.

The lever 24b functions as a drive unit that moves the stopper 24a between the stop position P6 and the stopper release position P7. The lever 24b itself is a link and includes a tape pressing portion 24ba, a tip portion 24bb, a claw portion 24bc, and a fulcrum 24bd.

The tape pressing portion 24ba presses down the first tape 7p transported along the third transport path 20e from above. The coil spring 24c is biased so that the tape pressing portion 24ba pushes it downward. As the first tape 7p advances downstream, it lifts the tape pressing portion 24ba against the spring force of the coil spring 24c.

When the first tape 7p is lifting the tape pressing portion 24ba, the claw portion 24bc extending upward from the top of the lever 24b is detected by the fifth sensor Sa5. In this state, the upstream tip portion 24bb of the lever 24b is lowered, and tip portion 24bb supports the weight of the tip portion 24ab of the stopper 24a.

As shown in FIG. 18, when the first tape 7p is completely transported downstream, the tape pressing portion 24ba rotates clockwise due to the spring force of the coil spring 24c and contacts the third transport path 20e. This causes the lever 24b to rotate clockwise around the fulcrum 24bd, and the tip portion 24bb of the lever 24b rotates the tip portion 24ab of the stopper 24a counterclockwise. The tip portion 24bb functions as a power transmission portion that transmits rotational power to the tip portion 24ab of the stopper 24a. As a result, the stopper 24a rotates from the stop position P6 to the stopper release position P7, and the abutment portion 24aa is released from contact with the second tape 7s. At this time, the direction in which the abutment portion 24aa is released from the stop position P6 to the stopper release position P7 is the direction in which the second tape 7s advances. In other words, the abutment portion 24aa rotates in a direction away from the tip of the second tape 7s from the stop position P6 to the stopper release position P7, thereby preventing the abutment portion 24aa from digging into the tip of the second tape 7s and preventing the second tape 7s from getting stuck when the stopper 24a is released.

Furthermore, the rotation of lever 24b causes the detection signal from fifth sensor Sa5 to stop being sent to feeder control unit 28. When feeder control unit 28 no longer receives a detection signal from fifth sensor Sa5, it recognizes that all of first tape 7p has been transported downstream and stopper 24a is located at stopper release position P7.

The feeder control unit 28 then drives the second tape transport unit 23 to transport the second tape 7s downstream to transport the second tape 7s to the third transport path 20e. In this way, the second tape 7s can be transported continuously following the first tape 7p.

Next, the configuration of the control system of the tape feeder 6 will be described with reference to FIG. 19. The feeder control unit 28 provided in the tape feeder 6 includes a computing device configured with semiconductor elements such as a processor or FPGA, a storage device configured with a hard disk (HDD), memory, or SSD, and a communication unit 28a. The functions of the feeder control unit 28 may be implemented solely by hardware or by a combination of hardware and software. The feeder control unit 28 may implement predetermined functions by reading data and programs stored in the storage device and performing various calculation processes. The communication unit 28a is a communications interface that transmits and receives signals and data to and from the mounting control unit 10 provided in the component mounting device 1. Based on the detection results of the first sensor Sa1, the second sensor Sa2, and the third sensor Sa3, the feeder control unit 28 controls the first motor 21b and the second motor 23a to perform the tape transport operation of the carrier tape 7 and the tape release operation of the tape holding release mechanism 34 according to a predetermined control pattern.

The feeder control unit 28 also controls the drive of the solenoid 46 based on the result of matching the identifier 8a of the reel 8 from the mounting control unit 10. Furthermore, when the feeder control unit 28 receives a detection signal from the fourth sensor Sa4, it recognizes that the shutter 27a has been opened and the second tape 7s is being transported below the shutter 27a along the first transport path 20c.

In addition, when the feeder control unit 28 is no longer able to receive a detection signal from the fifth sensor Sa5, it recognizes that the first tape 7p has been completely transported downstream from the second transport path 20d.

Next, the tape transport operation in the tape feeder 6 will be explained with reference to Figures 2 and 20. Figure 20 is a flowchart showing the flow of tape supply in the tape feeder 6.

In step S1, with no carrier tape 7 supplied to the tape feeder 6, the worker inserts the carrier tape 7 into the first conveying path 20c through the insertion port 20a.

In parallel with step S1, the matching unit 10a of the mounting control unit 10 matches the identifier 8a of the reel 8 read from the reader device 15 with the component information stored in the memory unit 10b to determine whether the component on the carrier tape 7 inserted into the first transport path 20c is the correct component. The mounting control unit 10 transmits the matching result from the matching unit 10a to the feeder control unit 28.

In step S2, when the feeder control unit 28 receives a comparison result (a signal indicating a match) from the mounting control unit 10 indicating that the component on the carrier tape 7 is the correct component, it activates the solenoid 46 to unlock the lock unit 45. Once the lock is released, the worker further inserts the carrier tape 7 into the tape transport path 20 via the first transport path 20c, and when the first sensor Sa1 detects the leading end of the carrier tape 7, it sends a detection signal to the feeder control unit 28. Furthermore, when the feeder control unit 28 receives a comparison result (a signal indicating a mismatch) from the mounting control unit 10 indicating that the component on the carrier tape 7 is not the correct component, it displays the fact that it is not the correct component on the operation display panel 29 to notify the worker.

In step S3, when the feeder control unit 28 receives a detection signal from the first sensor Sa1, it rotates the second motor 23a in the forward direction. This rotates the second sprocket 23g, transporting the carrier tape 7 downstream. Note that the feeder control unit 28 may also perform step S3 at the timing when it releases the lock of the lock unit 45, thereby rotating the second motor 23a in the forward direction and transporting the carrier tape 7 downstream.

When the carrier tape 7 is transported downstream within the tape transport path 20 and the second sensor Sa2 detects the leading end of the carrier tape 7, it sends a detection signal to the feeder control unit 28.

In step S4, upon receiving a detection signal from the second sensor Sa2, the feeder control unit 28 reduces the rotational speed of the second motor 23a and stops the second motor 23a after a predetermined time has elapsed. This allows the carrier tape 7 to reach the first sprocket 21a. Next, the feeder control unit 28 rotates the first motor 21b in the forward direction to rotate the first sprocket 21a, causing the first sprocket 21a to engage with the carrier tape 7. Thus, the carrier tape 7 is delivered to the first sprocket 21a. The feeder control unit 28 drives the first motor 21b to rotate, causing the first sprocket 21a to feed the carrier tape 7 at a predetermined pitch. In this way, the feeder control unit 28 switches the sprocket that transports the carrier tape 7.

When the carrier tape 7 is pitch-fed by the first sprocket 21a and the third sensor Sa3 detects the leading edge of the carrier tape 7, it sends a detection signal to the feeder control unit 28. Upon receiving the detection signal from the third sensor Sa3, the feeder control unit 28 stops the first motor 21b.

Next, in step S5, the feeder control unit 28 rotates the second motor 23a in the reverse direction, causing the ratchet gear 35a to rotate clockwise. This causes the lever 36 of the tape holding release mechanism 34 to swing, causing the second support portion 31 of the tape holding unit 26 to move upward, causing the carrier tape 7 to fall onto the second transport path 20d.

Next, in step S6, the feeder control unit 28 rotates the second motor 23a in the reverse direction for a predetermined time, and then stops the second motor 23a. At this timing, the feeder control unit 28 performs the peeling operation of the carrier tape 7.

Next, in step S7, the feeder control unit 28 rotates the second motor 23a in the forward direction, causing the ratchet gear 35a to rotate clockwise. This causes the lever 36 of the tape retention release mechanism 34 to swing back to its original position, and the second support portion 31 of the tape retention unit 26 to move downward and return to its original tape retention position. As a result, the first tape 7p previously inserted into the tape feeder 6 travels from the second transport path 20d through the tape transport path 20 and engages with the first sprocket 21a. Therefore, while the component on the first tape 7p is being removed by the mounting head 4 of the component mounting device 1, the second tape 7s to supply the next component can be inserted into the tape retention unit 26 at any time.

The tape feeder 6 of this embodiment includes a tape transport path 20 having a first transport path 20c, into which the carrier tape 7 is inserted, and a second transport path 20d located below the first transport path 20c, both located upstream of the first transport path 20c, where the second transport path 20d and the first transport path 20c converge to guide the running of the carrier tape 7 downstream. The tape feeder 6 further includes a first tape transport unit 21 that sequentially transports the carrier tape 7 on the tape transport path 20 downstream of position P2 where the first transport path 20c and the second transport path 20d converge to component removal position P1 on the tape transport path 20, and a tape holding unit 26 that holds the carrier tape 7 in at least a portion of the first transport path 20c. The tape feeder 6 further includes a second tape transport unit 23 that transports the carrier tape 7 held by the tape holding unit 26 in the downstream direction of the tape transport path 20, and a tape retention release mechanism 34 that drops the carrier tape 7 held by the tape holding unit 26 from the first transport path 20c to the second transport path 20d. The tape retention release mechanism 34 operates by utilizing the power of the drive source of the second tape transport unit 23.

In this way, the tape feeder 6 of this embodiment uses the tape retention release mechanism 34 to automatically drop the carrier tape 7 inserted into the first transport path 20c onto the second transport path 20d, preventing component supply interruptions due to an operator forgetting to release the tape. This improves the productivity of mounted boards and enables automation or labor-saving of component supply to component mounting devices.

In addition, the second tape transport unit 23 in this embodiment is equipped with a second motor 23a that can rotate forward and reverse as a drive source, and when the second motor 23a rotates forward, the second tape transport unit 23 transports the carrier tape 7 in the downstream direction of the tape transport path 20, and when the second motor 23a rotates reversely, it drives the tape holding release mechanism 34.

As a result, the second motor 23a of the second tape transport section 23 that transports the carrier tape 7 is used as the driving source for the tape hold release mechanism 34, thereby enabling space to be saved within the tape feeder 6.

In addition, in this embodiment, the tape holding portion 26 can be displaced from a holding position where it holds the carrier tape 7 to a release position P3 where it releases the hold on the carrier tape 7, and the tape holding release mechanism 34 displaces the tape holding portion 26 to the release position P3.

In addition, the tape holding release mechanism 34 in this embodiment is equipped with a ratchet mechanism 35 that rotates by the driving force of the second motor 23a and a lever 36 that swings by the ratchet mechanism 35, and the tape holding portion 26 is displaced to the holding position or release position P3 by the swing of the lever 36.

This causes the lever 36 to swing by the ratchet mechanism 35, so that the tape holding portion 26 can be maintained in the holding position or release position P3 as long as the rotation direction of the second motor 23a does not change.

In addition, according to the tape feeder 6 of this embodiment, it is equipped with a feeder control unit 28 that drives the tape holding release mechanism 34 at a timing after the carrier tape 7 transported by the second tape transport unit 23 is handed over to the first tape transport unit 21.

As a result, even if the carrier tape 7 is released from the first transport path 20c to the second transport path 20d, the carrier tape 7 has already been delivered to the first tape transport unit 21, so the carrier tape on the second transport path can be pitch-fed by the first tape transport unit 21 as a leading tape. Furthermore, since the carrier tape 7 can be inserted as a trailing tape into the tape holding unit 26, which is part of the first transport path 20c, productivity of mounted boards can be improved and component supply to the component mounting device can be automated or labor-saving. Note that the delivery of the carrier tape 7 from the second tape transport unit 23 to the first tape transport unit 21 may involve both the first sprocket 21a and the second sprocket 23g of the first tape transport unit 21 engaging with the carrier tape 7 on the downstream and upstream sides, respectively, or only the first sprocket 21a of the first tape transport unit 21 engaging with the carrier tape 7.

The tape feeder 6 of this embodiment also includes a first sensor Sa1 that detects when the carrier tape 7 is inserted into the tape transport path 20, and a second sensor Sa2 that is located downstream of the first sensor Sa1 on the tape transport path 20 and detects when the carrier tape 7 has arrived. The tape feeder 6 further includes a third sensor Sa3 that is located downstream of the second sensor Sa2 on the tape transport path 20 and detects when the carrier tape 7 has arrived at the component removal position P1. The feeder control unit 28 activates the second tape transport unit 23 based on the detection result of the carrier tape 7 by the first sensor Sa1, stops the second tape transport unit 23 at a predetermined timing after the second sensor Sa2 detects the carrier tape 7, and then activates the first tape transport unit 21.

This allows the position of the carrier tape 7 being transported along the transport path 20 to be detected, and the carrier tape 7 can be accurately transferred from the second tape transport unit 23 to the first tape transport unit 21.

Furthermore, the feeder control unit 28 in this embodiment stops the first tape transport unit 21 and drives the tape retention release mechanism 34 based on the detection result of the third sensor Sa3 detecting the carrier tape 7. As a result, after the downstream side of the carrier tape 7 is handed over to the first tape transport unit 21, the first tape transport unit 21 stops and the tape retention release mechanism 34 is driven, so that the carrier tape 7 can be prevented from being released during transport and the path of the carrier tape 7 can be changed with precision.

The tape feeder 6 of this embodiment transports the carrier tape 7 containing components to supply the components to the component mounting device 1. The tape feeder 6 is provided with a shutter 27a located downstream of the second sprocket 23g on the first transport path 20c, which prevents the carrier tape 7 from being transported downstream from a predetermined position, and a feeder control unit 28 that controls the drive of the second tape transport unit 23 based on the results of comparing information on the components stored on the carrier tape 7 with information on the predetermined components to be supplied. The shutter 27a moves with the carrier tape 7 transported by the second tape transport unit 23 from a tape stop position P4, where the advance of the carrier tape 7 stops, to a waiting position P5 away from the tape stop position P4.

This allows the feeder control unit 28 to control the transport of the carrier tape 7 based on the results of comparing the information on the parts stored on the carrier tape 7 with the information on the parts to be supplied, eliminating the need for the worker to further insert the carrier tape 7 after comparison, reducing the worker's waiting time and improving work efficiency.

In addition, the tape feeder 6 of this embodiment is equipped with a locking unit 45 that locks the shutter 27a, and the feeder control unit 28 unlocks the shutter 27a by the locking unit 45 based on the result of the comparison, and causes the second tape transport unit 23 to transport the carrier tape 7.

As a result, the feeder control unit 28 unlocks the shutter 27a by the locking unit 45 based on the result of the comparison, so that only the carrier tape 7 containing the correct components can be transported.

The tape feeder 6 of this embodiment is also provided with a fourth sensor Sa4 that detects the displacement of the shutter 27a. The unlocked shutter 27a is displaced by the carrier tape 7 transported along the first transport path 20c, and the feeder control unit 28 recognizes that the carrier tape 7 has been replenished into the tape feeder 6 based on the fourth sensor Sa4 detecting the displacement of the shutter 27a.

As a result, the feeder control unit 28 recognizes that the second tape 7s has already been set even after all the components on the first tape 7p have been supplied, so it can continuously supply components to the component mounting device 1.

The tape feeder 6 of this embodiment also includes a contact portion 24aa that contacts the leading edge of the second tape 7s at a predetermined position on the first transport path 20c, a stop position P6 that stops the second tape 7s at the predetermined position, a stopper 24a that can move from the stop position P6 to a stopper release position P7 that allows the second tape 7s to be transported downstream, and a lever 24b that moves the stopper 24a to the stop position P6 and the stopper release position P7. When the contact portion 24aa moves from the stop position P6 to the stopper release position P7, it moves away from the leading edge of the second tape 7s in the transport direction of the second tape 7s.

This prevents the abutment portion 24aa from digging into the second tape 7s when it moves to the stopper release position P7, allowing the second tape 7s to be transported smoothly.

Furthermore, according to the tape feeder 6 of this embodiment, it has a fulcrum 24ac that rotatably supports the stopper 24a, the abutment portion 24aa is positioned downstream of the fulcrum 24ac in the feed direction of the second tape 7s, and the lever 24b rotates the stopper 24a upward.

This allows the abutment portion 24aa to properly separate from the tip of the second tape 7s along the feed direction of the second tape 7s when it moves from the specified position to the stopper release position P7.

Furthermore, according to the tape feeder 6 of this embodiment, the lever 24b has a tip portion 24bb including a link, and the stopper 24a has a tip portion 24ab that receives power from the tip portion 24bb.

This allows the driving force of lever 24b to be properly transmitted to stopper 24a.

While the present disclosure has been fully described in connection with preferred embodiments with reference to the accompanying drawings, various variations and modifications will be apparent to those skilled in the art. Such variations and modifications are to be understood as included within the scope of the present disclosure as defined by the appended claims, unless they depart therefrom. Furthermore, changes in the combination and order of elements in each embodiment may be made without departing from the scope and spirit of the present disclosure.

(1) In the above embodiment, the tape holding release mechanism 34 presses down the movable member 33 using the lever 36, but this is not limited to this. As shown in Figures 21 and 22, the movable member 33 may be lifted by the lever 36 using a link mechanism. In Figure 21, the movable member 33 is in a position where the carrier tape 7 is held by the second support portion 31. In Figure 22, the movable member is lifted by the lever 36 and is in a position where it will drop from the second support portion 31.

(2) In the above embodiment, the carrier tape 7 held by the tape holding portion 26 is released by the upward movement of the movable member, but this is not limited to this. The up-and-down movement of the lever 36 may be converted into lateral movement, for example, using a cam mechanism. As shown in FIG. 23 , the tape holding portion 26A includes a left side wall 32a to which the first support portion 30 is fixed and a right side wall 32b to which the second support portion 31 is fixed. FIG. 23 is an explanatory diagram illustrating the release of the carrier tape 7 in a modified example. (a) shows the state in which the carrier tape 7 is being held, (b) shows the state in which the carrier tape 7 falls due to the displacement of the left side wall 32a and the right side wall 32b, and (c) shows the state in which the left side wall 32a and the right side wall 32b have returned to their original tape holding positions. The tape retention release mechanism 34 displaces the left side wall 32a and the right side wall 32b to displace the first support portion 30 and the second support portion 31 to a release position P3 laterally separated from the first transport path 20c.

In this way, when the tape holding portion 26A causes the carrier tape 7 to fall due to displacement of the left side wall 32a and the right side wall 32b, the length of the first support portion 30 and the second support portion 31 can be increased, making it suitable for transporting a wide carrier tape 7.

In addition, by appropriately combining any of the various embodiments and modifications described above, it is possible to achieve the effects of each.

The component supply device disclosed herein can be applied to a component supply device that supplies components to a component mounting device that mounts components on a board.

1 Component mounting device 1a Base
2 Substrate transport mechanism 3 Substrate 4 Placement head 5 Cart 6 Tape feeder 6a Base section 7 Carrier tape 7e Empty tape 7h Hole 7p First tape 7s Second tape 7t End section 8 Reel 8a Identifier 9 Reel holding section 10 Placement control section 10a Collation section 10b Memory section 11 Body cover 12 Recovery box 13 Discharge chute 14 Cutting section 15 Reader device 20 Tape transport path 20a Insertion opening 20b Discharge opening 20c First transport path 20d Second transport path 20e Third transport path 21 First tape transport section 21a First sprocket 21b First motor 22 Tape cover 23 Second tape transport section 23a Second motor 23b First gear 23c Second gear 23d Third gear 23e Fourth gear 23f Fifth gear 23g Second sprocket 24 Tape stopper portion 24a Stopper 24aa Contact portion 24ab Tip portion 24ac Fulcrum 24b Lever 24ba Tape pressing portion 24bb Tip portion 24bd Fulcrum 24c Coil spring 26, 26A Tape holding portion 26a Rotation shaft 27 Shutter unit 27a Shutter 27b Pin 27c Coil spring 27e Shutter body 27ea Inclined portion 27eb Elongated hole 27f Plate-shaped member 28 Feeder control portion 28a Communication portion 29 Operation display panel 30 First support portion 31 Second support portion 31a Cutout portion 32a Left side wall 32b Right side wall 33 Movable member 33a Long hole 34 Tape retention release mechanism 35 Ratchet mechanism 35a Ratchet gear 35b Ratchet pawl 36 Lever 38 Handle 39 Rotating shaft 40 One-way clutch 41 Pin 42 Protrusion 42a Taper 43 Side cover 45 Locking portion 46 Solenoid 46a Plunger 46b Plate member 47 Levers 47a, 47b End portion 48 Coil spring P1 Component removal position P2 Merging position P3 Release position P4 Tape stop position P5 Waiting position P6 Stop position P7 Stopper release position Sa1 First sensor Sa2 Second sensor Sa3 Third sensor Sa4 Fourth sensor Sa5 Fifth sensor

Claims (8)

a tape transport path including a first transport path into which a carrier tape is inserted and a second transport path located below the first transport path, both on the upstream side, where the first transport path and the second transport path join together to guide the running of the carrier tape in a downstream direction;
a first tape transport unit that sequentially transports the carrier tape of the tape transport path downstream of a position where the first transport path and the second transport path join to a component removal position of the tape transport path;
a tape holding unit that holds the carrier tape in at least a portion of the first transport path;
a second tape transport unit disposed upstream of the first tape transport unit and configured to transport the carrier tape held by the tape holding unit in a downstream direction of the tape transport path;
a tape holding release mechanism that drops the carrier tape held by the tape holding portion from the first transport path to the second transport path;
a first detection sensor provided downstream of the second tape transport unit, the first detection sensor detecting that the carrier tape has been inserted into the tape transport path downstream of the joining position;
a second detection sensor that is disposed downstream of the first detection sensor in the tape transport path and upstream of the first tape transport unit, and that detects that the carrier tape has arrived;
a control unit that stops the second tape transport unit at a predetermined timing after the second detection sensor detects the carrier tape being transported by the second tape transport unit, and further starts the first tape transport unit to drive the tape holding release mechanism at a timing after the carrier tape has been handed over to the first tape transport unit;
A parts supply device comprising: a third detection sensor disposed downstream of the second detection sensor in the tape transport path, the third detection sensor detecting that the carrier tape has reached the component removal position;
the control unit activates the second tape transport unit based on a detection result of the first detection sensor detecting the carrier tape.
The component supply device according to claim 1 . the control unit stops the first tape transport unit and drives the tape holding release mechanism based on a detection result that the third detection sensor detects the carrier tape.
3. The component supply device according to claim 2. the tape holding portion is displaceable from a holding position that holds the carrier tape to a release position that releases the holding of the carrier tape,
the tape holding release mechanism displaces the tape holding portion to the release position;
4. The component supply device according to claim 1. the release position is a position spaced above the first transport path;
5. The component supply device according to claim 4. the release position is a position laterally spaced apart from the first transport path;
5. The component supply device according to claim 4. the tape holding release mechanism is actuated by utilizing power from a drive source of the second tape transport unit.
7. A component supplying device according to claim 1. the second tape transport unit includes, as the drive source, a motor that can rotate forward and backward,
the control unit causes the second tape transport unit to transport the carrier tape in a downstream direction of the tape transport path when the motor is rotated forward;
the control unit drives the tape holding release mechanism by rotating the motor in a reverse direction.
8. The component supply device according to claim 7.