Parts supply device

Abstract

The present invention comprises: a belt conveying path, which has a second conveying path for the carrier belt to travel and a first conveying path located above the second conveying path on the upstream side, and the second conveying path merges with the first conveying path to guide the carrier belt to travel in the downstream direction; a first belt conveying part, which positions the carrier belt on the downstream side of the belt conveying path than the position where the second conveying path merges with the first conveying path at a component removal position of the belt conveying path; a belt holding part, which holds the carrier belt in at least a portion of the first conveying path; a second belt conveying part, which transports the carrier belt held by the belt holding part in the downstream direction of the belt conveying path; and a belt holding release mechanism, which causes the carrier belt held by the belt holding part to fall toward the second conveying path, and the belt holding release mechanism operates by using the power of the driving source of the second belt conveying part.

Description

Technical Field

[0001] The present invention relates to a component supply device for supplying components to a component assembly device. Background Art

[0002] Conventionally, there is known a tape feeder that can continuously supply a subsequent carrier tape (subsequent tape) to a component removal position after a preceding carrier tape (previous tape) storing components.

[0003] For example, the tape feeder described in Patent Document 1 includes a tape holding unit on the upstream side of the tape conveying path for holding a subsequent tape whose front end is inserted into the tape inlet. The tape holding unit includes a tape holding portion that can be displaced in the vertical direction by an operator's operation, and is configured so that the held subsequent tape can fall downward by displacing the tape holding portion in the vertical direction.

[0004] In this tape feeder, when the preceding tape is discharged and the succeeding tape becomes the preceding tape, and component supply begins, the operator manipulates the tape holding unit to drop the preceding tape from the unit, thereby adjusting the position of the preceding tape. This allows the succeeding tape to be replenished. The operator then holds the new succeeding tape in the tape holding unit and inserts its leading end into the tape insertion port, completing the carrier tape replenishment operation.

[0005] Prior art literature

[0006] Patent Literature

[0007] Patent Document 1: Japanese Patent Application Publication No. 2019-117820 Summary of the Invention

[0008] Problems to be solved by the invention

[0009] However, in conventional tape feeders, the operator manually releases the preceding tape downward, which can lead to the operator forgetting to release the tape. In this case, when all the components on the preceding tape have been installed, the component assembly device cannot be supplied with components, forcing the assembly process to stop, resulting in reduced productivity. Furthermore, since the operator manually switches from the preceding tape to the succeeding tape, it is difficult to automate the supply of components to the component assembly device or to save labor.

[0010] Therefore, an object of the present invention is to solve the above-mentioned conventional problems and to provide a component supply device that can improve productivity and automate or save manpower in the supply of components to a component assembly device.

[0011] Solutions to Problems

[0012] The component supply device of the present invention comprises: a belt conveying path, which has a first conveying path for inserting the carrier belt and a second conveying path located below the first conveying path on the upstream side, and the first conveying path and the second conveying path merge to guide the movement of the carrier belt in the downstream direction; a first belt conveying part, which conveys the carrier belt on the downstream side of the belt conveying path than the position where the first conveying path and the second conveying path merge to the component removal position of the belt conveying path in sequence; a belt holding part, which holds the carrier belt in at least a part of the first conveying path; a second belt conveying part, which conveys the carrier belt held by the belt holding part in the downstream direction of the belt conveying path; and a belt holding release mechanism, which causes the carrier belt held by the belt holding part to fall from the first conveying path to the second conveying path, and the belt holding release mechanism operates by using the power of the driving source of the second belt conveying part.

[0013] Effects of the Invention

[0014] According to the present invention, it is possible to provide a component supplying device that can improve productivity and automate or save manpower in the supply of components to a component mounting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of a component mounting device according to one embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of a component supply device according to one embodiment of the present invention.

[0017] Figure 3 This is a partial enlarged view of the parts supply device.

[0018] Figure 4 It is a partial cross-sectional view of the component supply device.

[0019] Figure 5 This is a bottom view of the tape holding portion of the component supply device.

[0020] Figure 6 It is a side view showing the structure of the second tape conveying portion and the tape holding release mechanism of the component supply device.

[0021] Figure 7 It is a side view showing the structure of the second tape conveying portion and the tape holding release mechanism of the component supply device.

[0022] Figure 8 It is a side view showing the structure of the second tape conveying portion and the tape holding release mechanism of the component supply device.

[0023] Figure 9 It is a side view showing the structure of the second tape conveying portion and the tape holding release mechanism of the component supply device.

[0024] Figure 10 It is a side view showing the structure of the second tape conveying portion and the tape holding release mechanism of the component supply device.

[0025] Figure 11 This is an illustration of how to release the carrier tape. Figure 11 (a) is an explanatory diagram showing a state where the belt is held, Figure 11 (b) and (c) are explanatory diagrams showing a state where the movable member is displaced upward. Figure 11 (d) is an explanatory diagram showing a state where the carrier tape falls due to displacement of the movable member. Figure 11 (e) is an explanatory diagram showing a state where the movable member has returned to its original position.

[0026] Figure 12 This is a partial enlarged view of the area around the gate of the parts supply device.

[0027] Figure 13 It is a side view showing the structure of a shutter and a locking portion of the component supply device.

[0028] Figure 14 It is a side view showing the operation of the shutter and the locking portion of the component supply device.

[0029] Figure 15 It is a side view showing the operation of the shutter and the locking portion of the component supply device.

[0030] Figure 16 This is a partial enlarged view of the limiting portion of the component supply device.

[0031] Figure 17 This is a side view showing the operation of the belt stopper of the component supply device.

[0032] Figure 18 This is a side view showing the operation of the belt stopper of the component supply device.

[0033] Figure 19 This is a block diagram showing the configuration of a control system of a component supply device.

[0034] Figure 20 This is a flowchart showing the flow of tape supply by the component supply device.

[0035] Figure 21 This is a side view showing a modified example of the tape holding and releasing mechanism of the component supply device.

[0036] Figure 22 This is a side view showing a modified example of the tape holding and releasing mechanism of the component supply device.

[0037] Figure 23 This is an explanatory diagram for explaining the unwinding of the carrier tape in a modified example. Figure 23 (a) is an explanatory diagram showing a state in which the side wall portion holds the carrier tape at the tape holding position, Figure 23 (b) is an explanatory diagram showing a state where the carrier tape falls due to displacement of the side wall portion to the release position. Figure 23 (c) is an explanatory diagram showing a state in which the side wall portion returns to the belt holding position. DETAILED DESCRIPTION

[0038] According to a first embodiment of the present invention, a component supply device is provided, which comprises: a belt conveying path, which has a first conveying path for inserting a carrier belt and a second conveying path located below the first conveying path on the upstream side, and the first conveying path and the second conveying path merge to guide the movement of the carrier belt in the downstream direction; a first belt conveying part, which conveys the carrier belt on the downstream side of the belt conveying path than the position where the first conveying path and the second conveying path merge to the component removal position of the belt conveying path in sequence; a belt holding part, which holds the carrier belt in at least a part of the first conveying path; a second belt conveying part, which conveys the carrier belt held by the belt holding part in the downstream direction of the belt conveying path; and a belt holding release mechanism, which causes the carrier belt held by the belt holding part to fall from the first conveying path to the second conveying path, and the belt holding release mechanism operates using the power of the driving source of the second belt conveying part.

[0039] According to the second embodiment of the present invention, a component supply device is provided on the basis of the component supply device described in the first embodiment, wherein the second belt conveying unit has a motor capable of forward and reverse rotation as a driving source, and when the motor rotates forward, the second belt conveying unit conveys the carrier belt toward the downstream direction of the belt conveying path, and when the motor reverses, the belt holding release mechanism is driven.

[0040] According to a third aspect of the present invention, based on the component supply device described in the second aspect, a component supply device is provided, wherein the belt holding portion can be displaced from a holding position for holding the carrier belt to a release position for releasing the carrier belt, and the belt holding release mechanism displaces the belt holding portion to the release position.

[0041] According to the fourth embodiment of the present invention, a component supply device is provided on the basis of the component supply device described in any one of the first to third embodiments, wherein the belt retaining release mechanism includes a ratchet mechanism that rotates under the action of the driving force of the motor and a rod that swings under the action of the ratchet mechanism, and the belt retaining portion is displaced to a retaining position or a release position under the action of the swing of the rod.

[0042] According to a fifth aspect of the present invention, in addition to the component supply device according to the fourth aspect, there is provided a component supply device, wherein the release position is a position separated upward from the first transport path.

[0043] According to the sixth embodiment of the present invention, based on the component supply device described in the fifth embodiment, a component supply device is provided, wherein the belt holding portion comprises: a movable member capable of swinging under the action of a belt holding release mechanism; a first support portion supporting the lower portion of one side in the width direction of the carrying belt; and a second support portion supporting the lower portion of the other side in the width direction of the carrying belt and being fixed to the movable member, wherein the belt holding release mechanism causes the movable member to swing, thereby displacing the second support portion to a position separated upward from the first conveying path.

[0044] According to the seventh embodiment of the present invention, based on the component supply device described in the sixth embodiment, a component supply device is provided, wherein the ratchet mechanism comprises a ratchet gear that rotates under the driving force of the motor and a rod having a pawl that engages with the ratchet gear, the rod being connected to the downstream end of the movable component, and when the motor is reversed, the ratchet gear engages with the pawl to cause the rod to swing, thereby causing the movable component to swing.

[0045] According to an eighth aspect of the present invention, in addition to the component supply device according to the fourth aspect, there is provided a component supply device, wherein the release position is a position separated in the lateral direction from the first conveying path.

[0046] According to the ninth embodiment of the present invention, based on the component supply device described in the eighth embodiment, a component supply device is provided, wherein the belt holding portion comprises: a first side wall and a second side wall, which can be displaced in the horizontal direction under the action of a belt holding release mechanism; a first support portion, which supports the lower portion of one side in the width direction of the carrying belt and is fixed to the first side wall; and a second support portion, which supports the lower portion of the other side in the width direction of the carrying belt and is fixed to the second side wall, and the belt holding release mechanism displaces the first side wall and the second side wall, thereby displacing the first support portion and the second support portion to a position separated from the first conveying path in the horizontal direction.

[0047] According to the tenth embodiment of the present invention, a component supply device is provided based on the component supply device described in the ninth embodiment, wherein the ratchet mechanism comprises a ratchet gear that rotates under the driving force of the motor and a rod having a pawl that engages with the ratchet gear, and when the motor is reversed, the ratchet gear engages with the pawl to cause the rod to swing, thereby displacing the first side wall and the second side wall.

[0048] Hereinafter, exemplary embodiments of the component assembly device of the present invention will be described with reference to the accompanying drawings. The present invention is not limited to the specific configurations of the following embodiments, and configurations based on the same technical concept are encompassed by the present invention.

[0049] (Implementation Method)

[0050] Reference Figure 1 The structure of the component assembly device 1 according to the embodiment of the present invention will be described. Figure 1 In FIG, the X direction ( Figure 1 The vertical direction of the paper), the Y direction perpendicular to the substrate conveying direction ( Figure 1 In addition, the Z direction is shown as a height direction perpendicular to the horizontal plane ( Figure 1 up and down directions in the .

[0051] Reference Figure 1 The structure of the component assembly apparatus 1 will be described. The component assembly apparatus 1 manufactures a mounted substrate with components mounted thereon. A substrate transport mechanism 2, mounted on the upper surface of a base 1a, transports, positions, and holds a substrate 3 in the X direction. An assembly head 4 is mounted above the substrate transport mechanism 2, which is moved horizontally (in the X and Y directions) by a head movement mechanism (not shown). Multiple tape feeders 6 are mounted on top of a trolley 5 coupled to the base 1a to the side of the substrate transport mechanism 2 and arranged in the X direction.

[0052] A reel holder 9 is provided on the front side of the carriage 5 and below the tape feeder 6, rotatably supporting a reel 8. The reel 8 is wound with a carrier tape 7 for storing components to be supplied to the component assembly apparatus 1. The tape feeder 6 conveys the carrier tape 7 stored on the reel 8 in the tape feed direction and supplies the components to the component removal position P1, where the assembly head 4 removes the components. An identifier 8a is attached to the reel 8 to identify the components stored on the carrier tape 7. The identifier 8a is, for example, a two-dimensional barcode or an RFID tag.

[0053] The component assembly device 1 includes an assembly control unit 10 that controls the substrate conveying mechanism 2, the assembly head 4, and the head moving mechanism. The assembly control unit 10 sends a component supply instruction to the tape feeder 6, controls the assembly head 4 and the head moving mechanism, and performs a component assembly operation in which the assembly head 4 removes the component supplied by the tape feeder 6 to the component removal position and transfers the mounted component to the assembly point of the substrate 3 held by the substrate conveying mechanism 2. In this way, the tape feeder 6 is a component supply device that supplies components stored on the carrier tape 7 to the component assembly device 1. The components stored on the carrier tape 7 are, for example, chip-type electronic components. A main body cover 11 is provided above the trolley 5 to prevent the operator from coming into contact with the movable mechanism such as the assembly head 4 during operation and to be opened and closed freely.

[0054] The component assembly device 1 further includes a reader 15 for reading information from the identifier 8a. The reader 15 is, for example, a two-dimensional barcode reader or an RFID reader. The information from the identifier 8a read by the reader 15 is transmitted to the assembly control unit 10. The assembly control unit 10 includes a comparison unit 10a and a storage unit 10b. The assembly control unit 10 is composed of, for example, a processor or a computing device such as an FPGA, and a memory or an SSD.

[0055] The storage unit 10b stores information about components to be supplied to the tape feeder 6. The comparison unit 10a compares the information about the identifier 8a read by the reader 15 with the information about the components to be supplied stored in the storage unit 10b. When the comparison unit 10a determines that the information about the identifier 8a matches the information about the components to be supplied, it transmits a signal indicating the match to the feeder control unit 28 as a comparison result. Furthermore, when the comparison unit 10a determines that the information about the identifier 8a does not match the information about the components to be supplied, it transmits a signal indicating the match to the feeder control unit 28 as a comparison result.

[0056] exist Figure 1 In the embodiment, a collection box 12 is provided at the bottom of the trolley 5. This collection box 12 collects the empty carrier tape 7 discharged from the rear of the tape feeder 6 after the assembly head 4 removes the components. A discharge chute 13 is provided on the rear side of the trolley 5 to guide the empty carrier tape 7 discharged from the tape feeder 6 to the collection box 12. The discharge chute 13 is provided with a cutting unit 14 that cuts the empty carrier tape 7 into a predetermined length. The empty carrier tape 7 discharged from the tape feeder 6 is cut by the cutting unit 14 and collected in the collection box 12.

[0057] With Feeder

[0058] Next, refer to Figure 2 as well as Figure 3 The structure of the tape feeder 6 will be described. Figure 2 It is a schematic diagram of the tape feeder 6 according to the embodiment. Figure 3 It is a partial enlarged view of the tape feeder 6.

[0059] The tape feeder 6 includes a tape conveying path 20, a first tape conveying portion 21, a second tape conveying portion 23, a tape holding portion 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 conveying path 20 and an ejection port 20b for ejecting the carrier tape 7 from the tape conveying path 20.

[0060] The tape conveyance path 20 guides the carrier tape 7 pulled out from the reel 8 and inserted into the tape feeder 6 from the insertion port 20 a to the component removal position P1 inside the tape feeder 6 and further to the discharge port 20 b.

[0061] The insertion port 20a is on the upstream side of the tape feeding direction in the tape feeder 6 ( Figure 2 The outlet 20b is on the downstream side of the belt feeding direction ( Figure 2 The tape conveying path 20 is connected from the insertion port 20a to the discharge port 20b. At the component removal position P1 provided midway in the tape conveying path 20, the assembly head 4 removes the component.

[0062] In the process of continuously performing the component assembly operation, the carrier tapes 7 stored in one reel 8 are grouped as a unit batch and a plurality of carrier tapes 7 are sequentially inserted from the insertion port 20a and fed to the tape feeder 6. Hereinafter, the carrier tape 7 fed first of the two carrier tapes 7 introduced from the insertion port 20a and fed on the tape conveying path 20 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 for inserting the carrier tape 7 on the upstream side, a second transport path 20d located below the first transport path 20c, and a third transport path 20e extending from a merging position P2 of the second transport path 20d and the first transport path 20c to the discharge port 20b.

[0063] The first tape conveyor 21 conveys the carrier tape 7 to the component removal position P1 on the downstream side of the tape conveyor path 20. The first tape conveyor 21 includes a first sprocket 21a that engages with the carrier tape 7 and a first motor 21b that rotates the first sprocket 21a. A tape cover 22 is mounted above the first tape conveyor 21, which presses the carrier tape 7 from above and includes a stripping blade for exposing the components contained within the carrier tape 7. An opening is formed in the tape cover 22 at a position corresponding to the component removal position P1. As the carrier tape 7 is moved along the lower surface of the tape cover 22 by the first sprocket 21a, the stripping blade exposes the components, which are then conveyed to the opening formed downstream thereof, namely the component removal position P1. It should be noted that the components contained within the carrier tape 7 can be exposed by arranging a pair of rollers (not shown) downstream of the component removal position P1 on the tape conveyor path 20, and using these rollers to peel off the top tape that seals the components within the carrier tape 7 (a full stripping method). In the case of the full peeling method, the tape cover 22 does not need to be provided with a peeling blade.

[0064] The second tape conveying unit 23 feeds the carrier tape 7 inserted into the first conveying path 20c from the insertion port 20a toward the first tape conveying unit 21. The second tape conveying unit 23 is arranged on the upstream side of the tape conveying path 20. The second tape conveying 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.

[0065] The output gear 23aa of the second motor 23a engages with the first gear 23b. The second gear 23c is configured to rotate coaxially with the first gear 23b and engages with the third gear 23d. The third gear 23d engages with the fourth gear 23e, which in turn 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. Thus, 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.

[0066] The tape conveyor path 20 includes a first conveyor path 20c and a second conveyor path 20d on the upstream side. The first conveyor path 20c and the second conveyor path 20d merge at position P2. The carrier tape 7 supplied to the tape feeder 6 is first conveyed along the first conveyor path 20c by the second tape conveyor unit 23 toward the downstream side of the tape conveyor path 20. Finally, when the carrier tape 7 is conveyed by the first tape conveyor unit 21, the carrier tape 7 moves from the first conveyor path 20c to the second conveyor path 20d as the preceding first tape 7p. As a result, the first tape 7p is conveyed from the second conveyor path 20d to the downstream side of the tape conveyor path 20 via the third conveyor path 20e, allowing the subsequent second tape 7s to be inserted into the first conveyor path 20c.

[0067] The tape feeder 6 includes a tape stopper 24, a shutter unit 27, and a lock portion 45, each of which is disposed below the second tape conveying portion 23. The tape feeder 6 also includes a first sensor Sa1, a second sensor Sa2, and a third sensor Sa3.

[0068] The first sensor Sa1 detects that the carrier tape 7 inserted into the tape feeder 6 reaches a predetermined position of the third transport path 20e downstream of the position P2 where the second transport path 20d merges with the first transport path 20c.

[0069] The second sensor Sa2 detects when the carrier tape 7 traveling along the tape conveyance path 20 reaches the component removal position P1. Therefore, the second sensor Sa2 is located downstream of the first sensor Sa1 and upstream of the third sensor Sa3.

[0070] The third sensor Sa3 detects when the carrier tape 7 traveling along the tape conveyor 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 conveyor. Each of the first through third sensors Sa1 and Sa3 is an optical sensor that detects the presence of the carrier tape 7, such as a color sensor or a photoelectric sensor.

[0071] The tape holding portion 26 supports the carrier tape 7 at least in a portion of the first conveying path 20c and holds the carrier tape 7 in a conveyed posture. Figure 4 The belt holding portion 26 includes a first support portion 30, a second support portion 31, a plate-shaped member 32, and a movable member 33. Figure 4 As shown, in the tape feeder 6, one side is referred to as the left side, and the other side is referred to as the right side, in the downstream direction in which the carrier tape 7 is conveyed.

[0072] The first support portion 30 supports one side portion in the width direction of the carrier belt 7 from below. The first support portion 30 is formed on the right side surface of the plate-shaped member 32. The second support portion 31 supports the other side portion of the carrier belt 7 from below.

[0073] The plate-shaped member 32 extends in the tape feeding direction and the vertical direction (Z direction). The inner side surface (right side surface) of the plate-shaped member 32 is a guide surface for guiding 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.

[0074] The movable member 33 has a plate-like shape and is connected so as to be able to swing in the vertical direction around the rotation shaft 26a. The inner side surface of the movable member 33 serves as a guide surface for guiding the right side surface of the carrier tape 7.

[0075] A handle 38 having a lever for the operator to operate with a finger is formed on the upper portion of the movable member 33. The operator lifts the handle 38 upward to lift the upstream side of the movable member 33 upward (see FIG. Figure 9 ). In this way, the movable member 33 can be displaced in the vertical direction relative to the fixed plate-shaped member 32 (refer to Figure 11 ).

[0076] exist Figure 4 In the embodiment, a rotating shaft 39 having a rotation center 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. Multiple pins 41a are provided on the left side of the outer peripheral surface of the second sprocket 23g (i.e., on the side closer to the plate-shaped member 32). When the movable member 33 is in the initial position, the pins 41a of the second sprocket 23g engage with feed holes 7h formed in the lower surface of the carrier tape 7 supported by the first support portion 30 and the second support portion 31.

[0077] The first support portion 30 supports the side portion of the carrier tape 7 where the feed hole 7h is formed from below. The second sprocket 23g, which is mounted on the horizontal rotating shaft 39 via a one-way clutch 40, engages with the feed hole 7h of the carrier tape 7, thereby forming a locking portion that locks the carrier tape 7 to the first support portion 30.

[0078] 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 holder 26 toward the insertion port 20a, but does not allow rotation in the opposite direction. This prevents the carrier tape 7 from falling off the tape feeder 6. Thus, the second sprocket 23g is mounted on the movable member 33 via the one-way clutch 40 to the rotating shaft 39, which rotates horizontally.

[0079] A protrusion 42 is formed on the inner side of the plate-like member 32 at a position spaced above the first support portion 30. The protrusion 42 has a tapered portion 42a formed at its lower end. The tapered portion 42a has a slope that slopes downward toward the inner side of the plate-like member 32 (and slopes upward away from the right side of the plate-like member 32). In other words, the lower end of the protrusion 42 narrows in horizontal width as it approaches downward.

[0080] exist Figure 5 In the embodiment, the downstream end of the second support portion 31 is positioned upstream of the downstream end of the first support portion 30. Furthermore, a notch portion 31a is formed on the downstream side of the second support portion 31, having an inclined surface 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 portion 31 on the insertion port 20a side (downstream side) narrows as it approaches the insertion port 20a.

[0081] Next, refer to Figures 6 to 10 The structure of the belt holding release mechanism 34 will be described. Figures 6 to 10 It is a side view showing the structure of the second tape conveying portion 23 and the tape holding release mechanism 34 of the tape feeder 6 .

[0082] The tape retaining release mechanism 34 causes the carrier tape 7 held by the tape retaining portion 26 in the first conveying path 20c to drop toward the second conveying path 20d. The tape retaining release mechanism 34 is operated by the power of the second motor 23a of the second tape conveying portion 23. The tape retaining release mechanism 34 includes a ratchet mechanism 35 that rotates under the driving force of the second motor 23a and a lever 36 that swings under the action of the ratchet mechanism 35.

[0083] The ratchet mechanism 35 is composed of a ratchet gear 35a and a ratchet pawl 35b. The ratchet gear 35a is attached to the third gear 23d so as to be rotatable coaxially with the third gear 23d. Therefore, the ratchet gear 35a rotates together with the third gear.

[0084] The lever 36 is, for example, L-shaped, has a ratchet 35b formed at one end thereof, and is connected at the other end to the downstream end portion of the movable member 33 of the tape holding portion 26. The lever 36 has a rotation shaft 36a provided at its center portion, and is attached to the tape feeder 6 via the second motor 23a so as to be swingable about the rotation shaft 36a.

[0085] like Figure 6 as well as Figure 7 As shown, when the second motor 23a rotates forward, the second motor 23a and the ratchet gear 35a rotate counterclockwise. In this case, the ratchet gear 35a acts by lifting the pawl 35b of the lever 36, so the pawl 35b does not engage with the ratchet gear 35a and continues to rotate idly.

[0086] like Figure 8 As shown, when the second motor 23a is reversed, the second motor 23a and the ratchet gear 35a rotate clockwise. In this case, the ratchet gear 35a works by pressing the pawl 35b of the rod 36, so the pawl 35b engages with the ratchet gear 35a, and the rod 36 starts to rotate counterclockwise.

[0087] When the second motor 23a is further reversed, as shown in FIG. Figure 9 As shown, the ratchet gear 35a depresses the pawl 35b of the lever 36, causing the lever 36 to rotate counterclockwise. This causes the lever 36 to depress the downstream end of the movable member 33 of the belt retaining portion 26 downward. As a result, the movable member 33 rotates clockwise about the rotation axis 26a, and the second support portion 31 moves upward to the released position P3.

[0088] Furthermore, when the second motor 23a continues to reverse, as shown in FIG. Figure 10 As shown, the ratchet gear 35a continues to press down the pawl 35b of the lever 36, so the pawl 35b of the lever 36 does not engage with the ratchet gear 35a. Therefore, the lever 36 is maintained in a state of pressing down the downstream end of the movable member 33 of the belt holding portion 26, and the state in which the second support portion 31 of the belt holding portion 26 is located at the upper release position P3 continues.

[0089] Next, when the second motor 23a rotates forward, the ratchet gear 35a acts to lift the pawl 35b of the lever 36, so that the ratchet gear 35a engages with the pawl 35b of the lever 36, and the lever rotates clockwise. As a result, the lever 36 lifts the downstream end of the movable member 33 of the belt holding portion 26 upward, and the second support portion 31 moves to its original position and the belt holding position.

[0090] Next, refer to Figure 11 The function of releasing the carrier tape 7 located in the first conveying path 20c from the tape holding portion 26 will be described. Figure 11 As shown in (a), when the movable member 33 is in the initial position and the second support portion 31 is at the same height as the first support portion 30, the carrier tape 7 is held by the tape holding portion 26. When the carrier tape 7 located on the first conveying path 20c is released from the tape holding portion 26, the feeder control unit 28 reverses the second motor 23a of the second tape conveying portion 23. As a result, the movable member 33, the second support portion 31, and the second sprocket 23g are integrated and rise. It should be noted that when the operator manually holds the handle 38 and lifts it upward, the movable member 33 also rises.

[0091] like Figure 11As shown in (b), as the movable member 33 rises, the lower surface of the right side of the carrier tape 7 is supported by the second support portion 31 and moves upward, and the upper surface of the left side of the carrier tape 7 abuts against the protrusion 42. When 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. Figure 11 As shown in (c), when the carrier tape 7 further rises together with the movable member 33, the carrier tape 7 is pressed by the tapered portion 42a of the protrusion 42 and displaced to a position (right side) not overlapping with the first support portion 30 and twisted counterclockwise.

[0092] like Figure 11 As shown in (d), as movable member 33 rises further, the twist of carrier tape 7 increases, eventually causing the right end of carrier tape 7 to slide downward from second support portion 31. At this point, the right end of carrier tape 7 reliably slides downward, starting from notch 31a on the downstream side of second support portion 31. Furthermore, the left end of carrier tape 7 is displaced rightward by protrusion 42, allowing carrier tape 7 to fall downward without getting caught on first support portion 30 (indicated by the dashed line in the figure).

[0093] The carrier tape 7 fed out from the tape holding portion 26 moves as the first tape 7p to the second conveyance path 20d formed below the first conveyance path 20c (see Figure 3 The carrier tape 7 is removed from the tape holder 26, for example, before the carrier tape 7 is inserted into the tape feeder 6 and the component is removed from the component removal position P1. When the carrier tape 7 (first tape 7p) is removed from the tape holder 26, the next carrier tape 7 (second tape 7s) can be inserted into the tape holder 26 at any time.

[0094] Gate Unit

[0095] Next, refer to Figure 14 as well as Figure 15 The gate unit 27 will be described. Figure 14 This is a partial enlarged view of the periphery of the gate unit. Figure 15 It is a side view showing the structure of the shutter unit 27 and the locking portion 45.

[0096] Shutter unit 27 prevents carrier tape 7 from advancing until the components of carrier tape 7 inserted into first conveyance lane 20c are collated. Shutter unit 27 includes a shutter 27a, a pin 27b, a coil spring 27c, and a fourth sensor Sa4.

[0097] The shutter 27a comes into contact with the carrier tape 7 to stop the travel of the carrier tape 7. The shutter 27a includes a shutter body 27e and a plate-shaped member 27f.

[0098] The shutter body 27e includes an inclined portion 27ea for contacting the carrier tape 7, a vertically extending long hole 27eb, and a stepped portion 27ec for engaging with the locking portion 45. The pin 27b is inserted into the long hole 27eb, and the shutter 27a is vertically displaceable along the long hole 27eb.

[0099] The plate-shaped member 27f extends upward from the gate body 27e. The fourth sensor Sa4 detects whether the gate 27a is at the tape stop position P4, which stops the movement of the carrier tape 7, or at the avoidance position P5, which is above the tape stop position P4. The fourth sensor Sa4 is, for example, an optical sensor. When the gate 27a is at the tape stop position P4, the gate 27a descends toward the first transport path 20c, so the fourth sensor Sa4 cannot detect the plate-shaped member 27f. Furthermore, when the gate 27a is at the avoidance position P5, the gate 27a ascends from the first transport path 20c, so the fourth sensor Sa4 detects the plate-shaped member 27f.

[0100] Coil spring 27c biases gate body 27e to press gate 27a downward, causing the lower end of gate body 27e to contact first conveying path 20c. When carrier tape 7 is conveyed downstream by second tape conveyor 23, carrier tape 7 overcomes the force of coil spring 27c, lifting gate 27a and allowing it to advance.

[0101] The lock portion 45 locks the displacement of the shutter 27a according to the control of the feeder control portion 28. The lock portion 45 includes a solenoid 46, a rod 47, and a coil spring 48.

[0102] The solenoid 46 attracts the rod 47 that prevents the displacement of the gate 27a toward the downstream side so that the gate 27a can be displaced from the avoidance position P5 to the belt stop position P4. The solenoid 46 includes a plunger 46a and a circular plate member 46b fixed to the front end of the plunger 46a. The plate member 46b of the solenoid 46 engages with the end 47b on the downstream side of the rod 47. When the solenoid 46 receives an instruction to attract from the feeder control unit 28, the plunger 46a is displaced to the attraction position and the rod 47 is displaced toward the downstream side. When there is no instruction to attract from the feeder control unit 28, the solenoid 46 displaces the plunger 46a to the original release position.

[0103] The rod 47 is biased upstream, i.e., toward the gate 27a, by a coil spring 48. When the plunger 46a of the solenoid 46 is released, the upstream end 47a of the rod 47 engages with the step 27ec of the gate body 27e. This prevents the gate 27a from rising toward the retracted position P5, locking the movement of the gate 27a.

[0104] When the result of the comparison of the components by the assembly control unit 10 is that the components are identical to the components to be supplied, the feeder control unit 28 sends an instruction to suck to the solenoid 46. Figure 14 As shown, the solenoid 46 attracts the plunger 46a, displacing the rod 47 downstream. As a result, the upstream end 47a of the rod 47 is disengaged from the step 27ec of the gate body 27e, thereby releasing the lock of the gate 27a.

[0105] Even if the gate 27a is unlocked, the gate 27a is biased downward by the coil spring 27c. However, after the feeder control unit 28 instructs the solenoid 46 to stop suction, it instructs the second tape conveying unit 23 to continue conveying the tape, so that the carrier tape 7 is conveyed downstream. As a result, the front end of the carrier tape 7 overcomes the elastic force of the coil spring 27c and pushes up the inclined portion of the gate body 27e.

[0106] When gate body 27e is pushed upward by the front end of carrier tape 7, plate-shaped member 27f of gate 27a also moves upward, and fourth sensor Sa4g detects plate-shaped member 27f. This allows detection of carrier tape 7 passing under gate 27a, i.e., the transfer of carrier tape 7 from first transport path 20c to third transport path 20e.

[0107] It should be noted that, if the result of the component comparison performed by the assembly control unit 10 indicates that the component does not match the component to be supplied, the feeder control unit 28 notifies the operator, for example, through the operation display panel 29, that the installed reel 8 is incorrect. When the operator realizes that the reel 8 is incorrect, he lifts the handle 38 of the tape holding unit 26 and removes the incorrectly inserted carrier tape 7 from the first conveying path 20c.

[0108] With limiter

[0109] Next, refer to Figures 16 to 18 The structure of the tape stopper 24 will be described. The tape stopper 24 stops the second tape 7s inserted into the first conveying path 20c from moving toward the third conveying path 20e when the first tape 7p is conveyed on the second conveying path 20d and the third conveying path 20e.

[0110] The belt stopper 24 includes a stopper 24 a , a rod 24 b , and a fifth sensor Sa5 .

[0111] The stopper 24a is, for example, a plate-shaped member and can be moved to a stop position P6 (see FIG. Figure 17 ) and the limit release position P7 (refer to Figure 18) displacement. The stopper 24a includes an abutment portion 24aa, a front end portion 24ab, and a fulcrum 24ac. When the stopper 24a is located at a predetermined position on the first conveying path 20c, namely, the stop position P6, the abutment portion 24aa abuts the front end of the second belt 7s, preventing the second belt 7s from moving downstream along the first conveying path 20c.

[0112] The front end portion 24ab is a downstream side portion of the stopper 24a, and is a portion to which power for displacement from the stop position P6 to the limit release position P7 is transmitted from the rod 24b.

[0113] The fulcrum 24ac is a fulcrum that serves as a rotation center for the stopper 24a to rotate toward the stop position P6 and the limit release position P7. The fulcrum 24ac is located upstream of the contact portion 24aa above the first transport path 20c.

[0114] The lever 24b functions as a driving unit for moving the stopper 24a to the stop position P6 and the limit release position P7. The lever 24b itself is a link and includes a belt pressing portion 24ba, a front end portion 24bb, a claw portion 24bc, and a fulcrum 24bd.

[0115] The belt pressing portion 24ba presses the first belt 7p conveyed on the third conveyance path 20e from above. The coil spring 24c urges the belt pressing portion 24ba downward. As the first belt 7p travels downstream, the elastic force of the coil spring 24c overcomes the belt pressing portion 24ba, lifting it.

[0116] When the first belt 7p lifts the belt pressing portion 24ba, the fifth sensor Sa5 detects the claw portion 24bc extending upward from the upper portion of the rod 24b. In this state, the front end portion 24bb on the upstream side of the rod 24b is in a downwardly descending state, and the front end portion 24bb supports the weight of the front end portion 24ab of the stopper 24a.

[0117] like Figure 18As shown, when the first belt 7p is completely transported downstream, the belt pressing portion 24ba rotates clockwise under the elastic force of the coil spring 24c and contacts the third transport path 20e. As a result, the rod 24b rotates clockwise about the fulcrum 24bd, and the front end 24bb of the rod 24b causes the front end 24ab of the stopper 24a to rotate counterclockwise. The front end 24bb functions as a power transmission unit that transmits rotational power to the front end 24ab of the stopper 24a. As a result, the stopper 24a rotates from the stop position P6 to the limit release position P7, thereby releasing the contact portion 24aa from the second belt 7s. At this time, the direction in which the contact portion 24aa opens from the stop position P6 to the limit release position P7 corresponds to the travel direction of the second belt 7s. In other words, the abutment portion 24aa rotates from the stop position P6 to the limit release position P7 in a direction away from the front end of the second belt 7s, thereby preventing the front end of the second belt 7s from being sunk by the abutment portion 24aa and preventing the second belt 7s from being blocked when the limiter 24a is released.

[0118] In addition, due to the rotation of the lever 24b, the detection signal from the fifth sensor Sa5 is not sent to the feeder control unit 28. When the feeder control unit 28 does not receive the detection signal from the fifth sensor Sa5, it recognizes that the first tape 7p is completely conveyed to the downstream side and the stopper 24a is located at the limit release position P7.

[0119] The feeder control unit 28 then drives the second tape conveying unit 23 to convey the second tape 7s downstream so as to convey the second tape 7s to the third conveying path 20e. In this way, the second tape 7s can be conveyed continuously following the first tape 7p.

[0120] Next, refer to Figure 19 The structure of the control system of the tape feeder 6 will be described. The tape feeder control unit 28 included in the tape feeder 6 includes a computing device such as a processor or semiconductor device such as an FPGA, a storage device such as a hard disk drive (HDD), a memory, or an SSD, and a communication unit 28a. The functions of the feeder control unit 28 can be implemented solely by hardware or by combining hardware and software. The feeder control unit 28 can perform various calculations by reading data and programs stored in the storage device, thereby realizing predetermined functions. The communication unit 28a is a communication interface that transmits and receives signals and data to and from the assembly control unit 10 included in the component assembly 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, and executes the tape conveying operation of the carrier tape 7 and the tape releasing operation of the tape retaining release mechanism 34 according to a predetermined control pattern.

[0121] The feeder control unit 28 drives and controls the solenoid 46 based on the comparison result of the identifier 8a of the reel 8 from the assembly control unit 10. When the feeder control unit 28 receives the detection signal from the fourth sensor Sa4, it recognizes that the gate 27a is open and conveys the second tape 7s below the gate 27a along the first conveying path 20c.

[0122] In addition, when the feeder control section 28 cannot receive the detection signal from the fifth sensor Sa5, it recognizes that the first tape 7p has been entirely conveyed from the second conveyance path 20d to the downstream side.

[0123] Next, refer to Figure 2 as well as Figure 20 The tape conveying operation in the tape feeder 6 will be described. Figure 20 1 is a flowchart showing the flow of tape supply by the tape feeder 6 .

[0124] In step S1 , in a state where the carrier tape 7 is not supplied to the tape feeder 6 , the operator inserts the carrier tape 7 into the first transport path 20 c from the insertion port 20 a .

[0125] Simultaneously with step S1, the comparison unit 10a of the assembly control unit 10 compares the identifier 8a of the reel 8 read from the reading device 15 with the component information stored in the storage unit 10b, and determines whether the component inserted into the carrier tape 7 of the first transport path 20c is the correct component. The assembly control unit 10 transmits the comparison result obtained by the comparison unit 10a to the feeder control unit 28.

[0126] In step S2, upon receiving a comparison result (a signal indicating a match) from the assembly control unit 10 indicating that the components on the carrier tape 7 are correct, the feeder control unit 28 drives the solenoid 46 to unlock the locking unit 45. Once unlocked, the operator inserts the carrier tape 7 further into the tape conveyance path 20 via the first conveyance path 20c. Upon detecting the leading end of the carrier tape 7, the first sensor Sa1 transmits a detection signal to the feeder control unit 28. Furthermore, upon receiving a comparison result (a signal indicating a match) from the assembly control unit 10 indicating that the components on the carrier tape 7 are not correct, the feeder control unit 28 displays the incorrect component on the operation display panel 29 and notifies the operator.

[0127] In step S3, upon receiving a detection signal from the first sensor Sa1, the feeder control unit 28 causes the second motor 23a to rotate forward. This causes the second sprocket 23g to rotate, transporting the carrier tape 7 downstream. It should be noted that the feeder control unit 28 may also execute step S3 when the locking unit 45 is unlocked, causing the second motor 23a to rotate forward and transporting the carrier tape 7 downstream.

[0128] When the carrier tape 7 is conveyed in the downstream direction in the tape conveyance path 20 and the second sensor Sa2 detects the leading end of the carrier tape 7 , it transmits a detection signal to the feeder control unit 28 .

[0129] In step S4, when the feeder control unit 28 receives a detection signal from the second sensor Sa2, it reduces the rotation speed of the second motor 23a and stops the second motor 23a after a predetermined time. As a result, the carrier tape 7 reaches the first sprocket 21a. Next, when the feeder control unit 28 rotates the first motor 21b in the forward direction to rotate the first sprocket 21a, the first sprocket 21a engages with the carrier tape 7. Thus, the carrier tape 7 is handed over to the first sprocket 21a. The feeder control unit 28 drives the first motor 21b to rotate and uses the first sprocket 21a to feed the carrier tape 7 at a predetermined interval. In this way, the feeder control unit 28 implements the switching of the sprockets that transport the carrier tape 7.

[0130] When the carrier tape 7 is fed by the first sprocket 21a and the third sensor Sa3 detects the leading end of the carrier tape 7, the detection signal is sent 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.

[0131] Next, in step S5, the feeder control unit 28 reverses the second motor 23a to rotate the ratchet gear 35a clockwise. This causes the lever 36 of the tape holding release mechanism 34 to swing, and the second support 31 of the tape holding unit 26 moves upward, causing the carrier tape 7 to fall toward the second conveyance path 20d.

[0132] Next, in step S6, the feeder control unit 28 reverses the second motor 23a 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.

[0133] 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 retaining release mechanism 34 to swing and return to its original position, and the second support portion 31 of the tape retaining unit 26 to move downward and return to its original position, i.e., the tape retaining position. As a result, the first tape 7p previously inserted into the tape feeder 6 passes from the second conveying path 20d through the tape conveying path 20 and engages with the first sprocket 21a. Therefore, the second tape 7s, which is the next component to be supplied, can be inserted into the tape retaining unit 26 at any time while the components of the first tape 7p are being removed by the assembly head 4 of the component assembly device 1.

[0134] The tape feeder 6 of this embodiment includes a tape conveying path 20 having a first conveying path 20c on the upstream side for inserting the carrier tape 7 and a second conveying path 20d located below the first conveying path 20c. The second conveying path 20d merges with the first conveying path 20c and guides the carrier tape 7 downstream. The tape feeder 6 further includes a first tape conveying portion 21 that sequentially conveys the carrier tape 7 downstream of a position P2 where the first conveying path 20c and the second conveying path 20d merge in the tape conveying path 20 to a component removal position P1 of the tape conveying path 20; and a tape holding portion 26 that holds the carrier tape 7 in at least a portion of the first conveying path 20c. The tape feeder 6 further includes: a second tape conveying portion 23 that conveys the carrier tape 7 held by the tape holding portion 26 toward the downstream of the tape conveying path 20; and a tape holding release mechanism 34 that causes the carrier tape 7 held by the tape holding portion 26 to drop from the first conveying path 20c to the second conveying path 20d. The tape holding release mechanism 34 is operated by the power of the driving source of the second tape conveying portion 23.

[0135] Thus, in the tape feeder 6 of this embodiment, the tape holding release mechanism 34 automatically drops the carrier tape 7 inserted into the first conveying path 20c to the second conveying path 20d, thereby preventing the component supply from being stopped due to the operator forgetting to release the tape. This improves the productivity of the mounting substrate and automates the supply of components to the component assembly device or saves manpower.

[0136] In addition, the second belt conveying unit 23 of this embodiment has a second motor 23a that can rotate forward and reverse as a driving source. When the second motor 23a rotates forward, the second belt conveying unit 23 conveys the carrier belt 7 toward the downstream direction of the belt conveying path 20. When the second motor 23a reverses, it drives the belt holding release mechanism 34.

[0137] Thus, since the second motor 23 a of the second tape conveying portion 23 that conveys the carrier tape 7 is used as the driving source of the tape holding release mechanism 34 , space saving in the tape feeder 6 can be achieved.

[0138] The tape holding portion 26 of this embodiment is displaceable from the holding position for holding the carrier tape 7 to the release position P3 for releasing the carrier tape 7 , and the tape hold release mechanism 34 displaces the tape holding portion 26 to the release position P3 .

[0139] In addition, the belt retaining release mechanism 34 of this embodiment includes a ratchet mechanism 35 that rotates under the action of the driving force of the second motor 23a and a rod 36 that swings under the action of the ratchet mechanism 35. The belt retaining portion 26 is displaced to the retaining position or release position P3 under the action of the swing of the rod 36.

[0140] As a result, the lever 36 is swung by the ratchet mechanism 35 , and therefore, the belt holding portion 26 can be maintained at the holding position or the release position P3 unless the rotation direction of the second motor 23 a is changed.

[0141] Furthermore, the tape feeder 6 according to the present embodiment includes the feeder control section 28 that drives the tape hold release mechanism 34 at a timing after the carrier tape 7 conveyed by the second tape conveying section 23 is delivered to the first tape conveying section 21 .

[0142] Thus, even when carrier tape 7 is unwound from first conveyor path 20c to second conveyor path 20d, it is after carrier tape 7 has been transferred to first tape conveyor 21. Therefore, the carrier tape of the second conveyor path can be fed as the preceding tape by first tape conveyor 21. Furthermore, since carrier tape 7 can be inserted as the following tape into tape holding portion 26, which is part of first conveyor path 20c, the productivity of mounting substrates can be improved. It should be noted that the transfer of carrier tape 7 from second tape conveyor 23 to first tape conveyor 21 can be done with both first sprocket 21a and second sprocket 23g of first tape conveyor 21 engaged on the downstream and upstream sides of carrier tape 7, respectively, or with only first sprocket 21a of first tape conveyor 21 engaged with carrier tape 7.

[0143] Furthermore, the tape feeder 6 of this embodiment includes a first sensor Sa1 that detects the insertion of the carrier tape 7 into the tape conveyance path 20, and a second sensor Sa2 located downstream of the first sensor Sa1 on the tape conveyance path 20 to detect the arrival of the carrier tape 7. The tape feeder 6 also includes a third sensor Sa3 located downstream of the second sensor Sa2 on the tape conveyance path 20 to detect the arrival of the carrier tape 7 at the component removal position P1. The feeder control unit 28 activates the second tape conveyance unit 23 based on the detection result of the carrier tape 7 by the first sensor Sa1, stops the second tape conveyance unit 23 at a predetermined timing after the second sensor Sa2 detects the carrier tape 7, and then activates the first tape conveyance unit 21.

[0144] Thus, the position of the carrier tape 7 being conveyed along the conveyance path 20 can be detected, and the carrier tape 7 can be accurately transferred from the second tape conveyance unit 23 to the first tape conveyance unit 21 .

[0145] Furthermore, the feeder control unit 28 of this embodiment stops the first tape conveying unit 21 and activates the tape hold release mechanism 34 based on the detection result of the third sensor Sa3 detecting the carrier tape 7. Thus, after the downstream side of the carrier tape 7 is delivered to the first tape conveying unit 21, the first tape conveying unit 21 stops and the tape hold release mechanism 34 is activated, thereby preventing the carrier tape 7 from being released during conveyance and enabling the path of the carrier tape 7 to be changed with high precision.

[0146] Furthermore, the tape feeder 6 of this embodiment conveys a carrier tape 7 containing components and supplies the components to the component assembly device 1. The tape feeder 6 includes a gate 27a, which is located downstream of the second sprocket 23g in the first conveyance path 20c and prevents the carrier tape 7 from being conveyed downstream from a predetermined position; and a feeder control unit 28, which controls the driving of the second tape conveying unit 23 based on the result of comparing information about the components contained on the carrier tape 7 with information about pre-determined components to be supplied. The gate 27a moves from a tape stop position P4, where the carrier tape 7 stops moving, to a retracted position P5, which is spaced apart from the tape stop position P4, in response to the carrier tape 7 conveyed by the second tape conveying unit 23.

[0147] Thus, the feeder control unit 28 can control the transportation of the carrier 7 based on the comparison result of the information of the components stored in the carrier 7 and the information of the components to be supplied. Therefore, the operator does not need to further insert the carrier 7 after comparison, which can reduce the operator's waiting time and improve work efficiency.

[0148] The tape feeder 6 of this embodiment includes a lock portion 45 that locks the gate 27 a . Based on the comparison result, the feeder control portion 28 releases the gate 27 a locked by the lock portion 45 and causes the second tape conveying portion 23 to convey the carrier tape 7 .

[0149] Thus, the feeder control unit 28 releases the lock of the gate 27a by the lock unit 45 based on the comparison result, so that only the carrier tape 7 storing the correct components can be conveyed.

[0150] In addition, the tape feeder 6 of this embodiment is equipped with a fourth sensor Sa4 for detecting the displacement of the gate 27a. The unlocked gate 27a is displaced by the carrier tape 7 conveyed on the first conveying path 20c. The feeder control unit 28 recognizes that the carrier tape 7 is being supplied to the tape feeder 6 based on the detection of the displacement of the gate 27a by the fourth sensor Sa4.

[0151] Thus, the feeder control section 28 recognizes that the second tape 7 s has been attached after all the components of the first tape 7 p have been supplied, and thus the components can be continuously supplied to the component mounting apparatus 1 .

[0152] Furthermore, the tape feeder 6 according to this embodiment includes: a stopper 24a having a contact portion 24aa that contacts the front end of the second tape 7s at a predetermined position on the first conveying path 20c, the stopper 24a being movable toward a stop position P6 for stopping the second tape 7s at a predetermined position and a limit release position P7 for conveying the second tape 7s downstream from the stop position P6; and a rod 24b for moving the stopper 24a toward the stop position P6 and the limit release position P7. When the contact portion 24aa moves from the stop position P6 to the limit release position P7, the stopper 24aa separates from the front end of the second tape 7s along the conveying direction of the second tape 7s.

[0153] This prevents the contact portion 24aa from being caught in the second belt 7s when moving to the limit release position P7, and enables smooth conveyance of the second belt 7s.

[0154] The tape feeder 6 of this embodiment has a fulcrum 24ac that rotatably supports the stopper 24a. The contact portion 24aa is located downstream of the fulcrum 24ac in the conveying direction of the second tape 7s. The lever 24b rotates the stopper 24a upward.

[0155] Thus, when the contact portion 24aa moves from the predetermined position to the limit release position P7, it can be appropriately separated from the leading end of the second tape 7s along the conveyance direction of the second tape 7s.

[0156] Furthermore, according to the tape feeder 6 of the present embodiment, the rod 24b has the front end portion 24bb including the link, and the stopper 24a has the front end portion 24ab receiving power from the front end portion 24bb.

[0157] Thereby, the driving force of the rod 24b can be appropriately transmitted to the stopper 24a.

[0158] While the present invention has been fully described with reference to the accompanying drawings, various variations and modifications will be apparent to those skilled in the art. Such variations and modifications should be understood to be encompassed within the scope of the present invention as long as they do not depart from the scope of the accompanying technical solutions. Furthermore, variations in the combination and order of elements of the various embodiments may be implemented without departing from the scope and spirit of the present invention.

[0159] (1) In the above embodiment, the belt holding release mechanism 34 uses the rod 36 to press down the movable member 33, but the present invention is not limited to this. Figure 21 as well as Figure 22 As shown, the movable member 33 can also be suspended by using a rod 36 and a link mechanism. Figure 21 In FIG, the movable member 33 is the position where the carrier tape 7 is held at the second support portion 31. Figure 22In the embodiment, the movable member is suspended by the rod 36 and is in a position dropped from the second support portion 31 .

[0160] (2) In the above embodiment, the movable member moves upward to release the carrier tape 7 held by the tape holding portion 26, but the present invention is not limited thereto. For example, a cam mechanism may be used to convert the vertical movement of the rod 36 into a lateral movement. Figure 23 As shown, the belt holding portion 26A includes a left side wall 32 a to which the first support portion 30 is fixed, and a right side wall 32 b to which the second support portion 31 is fixed. Figure 23 This is an explanatory diagram for explaining the unwinding of the carrier tape 7 according to a modified example. Figure 23 (a) shows the state of holding the carrier tape 7, Figure 23 (b) shows a state where the carrier tape 7 falls due to the displacement of the left side wall 32a and the right side wall 32b. Figure 23 (c) shows the state where the left side wall 32a and the right side wall 32b have returned to their original positions, i.e., the belt holding position. The belt holding release mechanism 34 displaces the left side wall 32a and the right side wall 32b, thereby displacing the first support portion 30 and the second support portion 31 to the release position P3, which is separated laterally from the first conveying path 20c.

[0161] Thus, when tape holding portion 26A drops carrier tape 7 due to displacement of left side wall 32a and right side wall 32b, the lengths of first support portion 30 and second support portion 31 can be increased, making it suitable for conveying wide carrier tape 7.

[0162] It should be noted that by appropriately combining any of the various embodiments and modifications described above, the effects possessed by each can be achieved.

[0163] Industrial Applicability

[0164] The component supply device of the present invention can be applied to a component supply device that supplies components to a component mounting device that mounts components on a substrate.

[0165] Description of Reference Numerals

[0166] 1: Component assembly device, 1a: Base, 2: Substrate transport mechanism, 3: Substrate, 4: Assembly head, 5: Carriage, 6: Tape feeder, 6a: Base portion, 7: Carrier tape, 7e: Empty tape, 7h: Hole, 7p: First tape, 7s: Second tape, 7t: Terminal portion, 8: Reel, 8a: Identifier, 9: Reel holding portion, 10: Assembly control portion, 10a: Comparison portion, 10b: Storage portion, 11: Main body cover, 12: Recovery box, 13: Discharge chute, 14: Cutting portion, 15: Reading device, 20: Tape transport path, 20a: Insertion port, 20b: Discharge port, 20c: First transport path, 20 d: Second conveying path, 20e: Third conveying path, 21: First belt conveying portion, 21a: First sprocket, 21b: First motor, 22: Belt cover, 23: Second belt conveying portion, 23a: Second motor, 23b: First gear, 23c: Second gear, 23d: Third gear, 23e: Fourth gear, 23f: Fifth gear, 23g: Second sprocket, 24: Belt stopper, 24a: Stopper, 24aa: Abutment, 24ab: Front end portion, 24ac: Support point, 24b: Rod, 24ba: Belt pressing portion, 24bb: Front end portion, 24bd: Support point, 24c: Spiral spring Spring, 26, 26A: Belt holding portion, 26a: Rotating shaft, 27: Gate unit, 27a: Gate, 27b: Pin, 27c: Coil spring, 27e: Gate body, 27ea: Inclined portion, 27eb: Long hole, 27f: Plate-shaped member, 28: Feeder control portion, 28a: Communication portion, 29: Operation display panel, 30: First supporting portion, 31: Second supporting portion, 31a: Notch portion, 32a: Left side wall, 32b: Right side wall, 33: Movable member, 33a: Long hole, 34: Belt holding release mechanism, 35: Ratchet mechanism, 35a: Ratchet gear, 35b: Pawl, 36: Rod , 38: Handle, 39: Rotating shaft, 40: One-way clutch, 41: Pin, 42: Protrusion, 42a: Cone, 43: Side cover, 45: Locking portion, 46: Solenoid, 46a: Plunger, 46b: Plate member, 47: Rod, 47a, 47b: End, 48: Coil spring, P1: Component removal position, P2: Confluence position, P3: Release position, P4: Belt stop position, P5: Avoidance position, P6: Stop position, P7: Limit release position, Sa1: First sensor, Sa2: Second sensor, Sa3: Third sensor, Sa4: Fourth sensor, Sa5: Fifth sensor.

Claims

1. A component supply device, wherein: The component supply device comprises: A tape conveying path having a first conveying path for inserting a carrier tape and a second conveying path located below the first conveying path on the upstream side, wherein the first conveying path and the second conveying path merge to guide the carrier tape in the downstream direction; a first tape conveying section that sequentially conveys the carrier tapes located downstream of a position where the first conveying path and the second conveying path merge into the tape conveying path toward a component removal position of the tape conveying path; a tape holding portion that holds the carrier tape in at least a portion of the first transport path; a second tape conveying portion that conveys the carrier tape held by the tape holding portion toward a downstream direction of the tape conveying path; as well as a tape holding release mechanism that causes the carrier tape held by the tape holding portion to drop from the first conveying path to the second conveying path; The belt holding release mechanism is operated by the power of the driving source of the second belt conveying portion.

2. The component supply device according to claim 1, wherein The second belt conveying portion includes a motor capable of forward and reverse rotation as the driving source. When the motor rotates forward, the second tape conveying unit conveys the carrier tape in the downstream direction of the tape conveying path. The belt holding release mechanism is driven when the motor rotates in reverse.

3. The component supplying device according to claim 2, wherein: The tape holding portion is movable from a holding position for holding the carrier tape to a releasing position for releasing the holding of the carrier tape. The belt holding release mechanism displaces the belt holding portion toward the release position.

4. The component supplying device according to claim 3, wherein: The belt holding release mechanism includes a ratchet mechanism that rotates under the driving force of the motor and a lever that swings under the action of the ratchet mechanism. The belt holding portion is displaced to the holding position or the releasing position by the swinging of the lever.

5. The component supplying device according to claim 4, wherein: The release position is a position separated upward from the first transport path.

6. The component supplying device according to claim 5, wherein: The belt holding portion includes: a movable member capable of swinging under the action of the belt retaining release mechanism; a first supporting portion supporting a lower portion of one side in the width direction of the carrier tape; as well as a second supporting portion that supports the other lower portion of the carrier tape in the width direction and is fixed to the movable member; The belt hold release mechanism displaces the second support portion to a position separated upward from the first conveyance path by swinging the movable member.

7. The component supplying device according to claim 6, wherein: The ratchet mechanism includes a ratchet gear that rotates under the driving force of the motor and a ratchet pawl formed at one end of the rod and engaged with the ratchet gear. The rod is connected to the downstream end of the movable member. When the motor rotates in the reverse direction, the ratchet gear engages with the pawl to swing the lever, thereby swinging the movable member.

8. The component supplying device according to claim 4, wherein The release position is a position separated from the first transport path in the lateral direction.

9. The component supplying device according to claim 8, wherein: The belt holding portion includes: a first side wall and a second side wall capable of being displaced in a horizontal direction under the action of the belt retaining release mechanism; a first supporting portion supporting a lower portion of one side in the width direction of the carrier tape and fixed to the first side wall; as well as a second supporting portion that supports the other lower portion of the carrier tape in the width direction and is fixed to the second side wall; The belt hold release mechanism displaces the first side wall and the second side wall to displace the first support portion and the second support portion to positions separated in the transverse direction from the first conveyance path.

10. The component supplying device according to claim 9, wherein The ratchet mechanism includes a ratchet gear that rotates under the driving force of the motor and a pawl formed at one end of the rod and engaged with the ratchet gear. When the motor rotates reversely, the ratchet gear engages with the pawl to swing the lever, thereby displacing the first side wall and the second side wall.

Images