Parts Mounting Equipment

Abstract

A component loading device of the present disclosure, which is equipped with a tape feeder and a loading head, comprises: a storage cassette (22B) that stores a roll of carrier tape and that allows the roll to be inserted and removed through an opening; and a receiving cassette (22A) that stores a roll (RT) of carrier tape (CT), that allows the roll (RT) to be inserted and removed through an opening, and that stores the roll (RT) supplied from the storage cassette (22B), which is mounted in a storage-cassette mounting unit (39). The tape feeder supplies components to the loading head by pulling the carrier tape (CT) from the roll (RT) of the receiving cassette (22A) mounted in a receiving-cassette mounting unit (38), and following this carrier tape (CT), the tape feeder supplies components to the loading head by pulling the carrier tape (CT) from the roll (RT) of the storage cassette (22B) mounted in the storage-cassette mounting unit (39).

Description

[Technical Field]

[0001] The present disclosure relates to a component mounting device that picks up components from a carrier tape containing the components and mounts them on a substrate. [Background technology]

[0002] A tape feeder is a component supply unit used in a component mounting device that mounts components on a substrate. The tape feeder transports a carrier tape containing components and supplies the components to a predetermined component supply port. The carrier tape is wound around a core of a reel that serves as a tape holder. The carrier tape is transported, stored, and set in the tape feeder while remaining wound around the reel.

[0003] It has also been proposed to eliminate the tape holder such as the reel and transport, store, and set in a tape feeder in the form of a roll in which the carrier tape is wound into a disk shape without a core (for example, Patent Document 1 below).In Patent Document 1, the roll is stored in a case-like storage device with a partial opening, and the storage device that stores the roll can be installed next to the tape feeder. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. 2020 / 202737 Summary of the Invention

[0005] However, in the above-mentioned Patent Document 1, the refill carrier tape (refill tape) is attached to the carriage of the storage device for the roll body by being attached in a cantilevered manner to the end of the storage device for the roll body of the carrier tape (current tape feeder) currently being transported by the tape feeder. Therefore, it was difficult to accommodate larger roll bodies due to insufficient strength and rigidity of the storage device.

[0006] An object of the present disclosure is to provide a component mounting device that can accommodate larger roll bodies.

[0007] The component mounting device of the present disclosure is a component mounting device that picks up components from a carrier tape containing the components and mounts them on a substrate, and includes: a mounting head that picks up the components and mounts them on the substrate; a storage cassette having a first storage space for storing a roll of carrier tape and having a first opening at the front through which the roll can be inserted and removed; a storage cassette mounting section to which the storage cassette is attached; a receiving cassette having a second storage space for storing the roll of carrier tape and having a second opening at the front through which the roll can be inserted and removed, and storing the roll supplied from the storage cassette mounted in the storage cassette mounting section; the receiving cassette mounting section to which the receiving cassette is attached; and a component supply unit that pulls out the carrier tape from the roll of the receiving cassette mounted in the receiving cassette mounting section to supply components to the mounting head, and pulls out the carrier tape from the roll of the storage cassette mounted in the storage cassette mounting section following the carrier tape, and supplies components to the mounting head.

[0008] According to the present disclosure, it is possible to easily accommodate an increase in the size of the roll body. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a side view of a main portion of a component mounting device equipped with a tape cassette according to an embodiment of the present disclosure. [Figure 2] FIG. 2 is a side view of a component supply unit of the component mounting device according to the embodiment of the present disclosure. [Figure 3] FIG. 3 is a perspective view showing a tape cassette provided in a component mounting device according to an embodiment of the present disclosure, together with a roll of carrier tape stored therein. [Figure 4] FIG. 4 is an enlarged perspective view of a portion of a carrier tape unwound from a roll used in a component mounting device according to an embodiment of the present disclosure. [Figure 5]FIG. 5 is a side view showing components of a component supply unit of a component mounting device according to an embodiment of the present disclosure. [Figure 6] FIG. 6 is a perspective view of a tape cassette according to an embodiment of the present disclosure. [Figure 7] FIG. 7 is a side view of a tape cassette according to an embodiment of the present disclosure. [Figure 8] FIG. 8 is a front view of a tape cassette according to an embodiment of the present disclosure. [Figure 9] FIG. 9 is an exploded perspective view of a tape cassette according to an embodiment of the present disclosure. [Figure 10] FIG. 10 is a side view of a frame included in a tape cassette according to an embodiment of the present disclosure. [Figure 11] FIG. 11 is a side cross-sectional view of a portion of a component mounting device according to an embodiment of the present disclosure. [Figure 12] FIG. 12 is a side cross-sectional view of a portion of a component mounting device according to an embodiment of the present disclosure. [Figure 13] FIG. 13 is a side cross-sectional view of a tape cassette according to one embodiment of the present disclosure. [Figure 14] FIG. 14 is a side cross-sectional view of a tape cassette according to one embodiment of the present disclosure. [Figure 15] FIG. 15 is a side view of a shutter provided in a tape cassette according to an embodiment of the present disclosure. [Figure 16A] FIG. 16A is a cross-sectional view of a tape cassette according to an embodiment of the present disclosure. [Figure 16B] FIG. 16B is a cross-sectional view of the tape cassette according to the embodiment of the present disclosure. [Figure 16C] FIG. 16C is a cross-sectional view of a tape cassette according to an embodiment of the present disclosure. [Figure 16D] FIG. 16D is a cross-sectional view of a tape cassette according to an embodiment of the present disclosure. [Figure 16E] FIG. 16E is a cross-sectional view of a tape cassette according to an embodiment of the present disclosure. [Figure 16F]FIG. 16F is a cross-sectional view of a tape cassette according to an embodiment of the present disclosure. [Figure 16G] FIG. 16G is a cross-sectional view of a tape cassette according to an embodiment of the present disclosure. [Figure 17A] FIG. 17A is a side view of a tape cassette showing how a roll of carrier tape is inserted into and removed from a storage cassette according to an embodiment of the present disclosure. [Figure 17B] FIG. 17B is a side view of the tape cassette showing how a roll of carrier tape is inserted into and removed from the storage cassette according to the embodiment of the present disclosure. [Figure 17C] FIG. 17C is a side view of the tape cassette showing how a roll of carrier tape is inserted into and removed from the storage cassette in one embodiment of the present disclosure. [Figure 18A] FIG. 18A is a front view of a plurality of types of tape cassettes having different width dimensions according to an embodiment of the present disclosure. [Figure 18B] FIG. 18B is a front view of a plurality of types of tape cassettes having different width dimensions according to the embodiment of the present disclosure. [Figure 18C] FIG. 18C is a front view of a plurality of types of tape cassettes having different width dimensions according to an embodiment of the present disclosure. [Figure 19] FIG. 19 is a perspective view of an example of a tape cassette having the largest width dimension according to an embodiment of the present disclosure. [Figure 20A] FIG. 20A is a side cross-sectional view of a portion of the component mounting device illustrating a procedure for attaching a tape cassette according to an embodiment of the present disclosure. [Figure 20B] FIG. 20B is a side cross-sectional view of a portion of the component mounting device illustrating a procedure for attaching a tape cassette according to the embodiment of the present disclosure. [Figure 21A] FIG. 21A is a side cross-sectional view of a portion of a component mounting device illustrating movement of a roll body in an embodiment of the present disclosure. [Figure 21B] FIG. 21B is a side cross-sectional view of a portion of the component mounting device illustrating movement of the roll body according to the embodiment of the present disclosure. [Figure 22A] FIG. 22A is a side cross-sectional view of a portion of the component mounting device illustrating a procedure for removing a tape cassette according to an embodiment of the present disclosure. [Figure 22B] FIG. 22B is a side cross-sectional view of a portion of the component mounting device illustrating a procedure for removing the tape cassette according to the embodiment of the present disclosure. [Figure 23A] FIG. 23A is a side cross-sectional view of a portion of the component mounting device illustrating a procedure for attaching a tape cassette according to an embodiment of the present disclosure. [Figure 23B] FIG. 23B is a side cross-sectional view of a portion of the component mounting device illustrating a procedure for attaching a tape cassette according to the embodiment of the present disclosure. [Figure 24A] FIG. 24A is a side cross-sectional view of a portion of a component mounting device illustrating movement of a roll body in an embodiment of the present disclosure. [Figure 24B] FIG. 24B is a side cross-sectional view of a portion of the component mounting device illustrating movement of the roll body according to the embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. Fig. 1 shows a side view of a main portion of a component mounting apparatus 1T according to one embodiment of the present disclosure. The component mounting apparatus 1T is an apparatus that repeatedly performs a series of component mounting operations, in which components BH are mounted on a board KB carried in from another apparatus in an upstream process and then carried out to another apparatus in a downstream process, and includes a component mounting apparatus main body 1A and a component supply unit 1B.

[0011] 1, component mounting device main body 1A includes base 11, substrate transport unit 12, mounting head 13, and head movement mechanism 14. Substrate transport unit 12 is made up of a conveyor mechanism, which transports substrate KB received from an upstream process device horizontally and positions it at a predetermined working position. In this embodiment, the transport direction of substrate KB in component mounting device 1T is defined as the X direction (horizontal direction), the up-down direction is defined as the Z direction, and the direction perpendicular to both the X direction and the Z direction is defined as the Y direction (front-rear direction).

[0012] 1, the mounting head 13 has multiple nozzles 13N extending downward, and the lower end of each nozzle 13N can generate a vacuum suction force that picks up a component BH. The head movement mechanism 14 is composed of, for example, an XY table, and moves the mounting head 13 within the XY plane.

[0013] FIG. 2 is a side view of the component supply unit 1B of the component mounting device 1T. FIG. 3 is a perspective view showing a tape cassette 22 provided in the component mounting device 1T together with a roll RT of carrier tape CT stored therein. FIG. 4 is an enlarged perspective view of a portion of the carrier tape CT pulled out from the roll RT used in the component mounting device 1T. FIG. 5 is a side view showing the components of the component supply unit 1B of the component mounting device 1T. In FIGS. 1 and 2, the component supply unit 1B includes a carriage 21, a tape cassette 22, and a tape feeder 23. The tape cassette 22 is configured to store a roll RT of carrier tape CT (hereinafter simply referred to as roll RT) in which the carrier tape CT is wound in a disc shape without a core (see also FIG. 3). In other words, the tape cassette 22 handles a roll RT that is not wound on a reel.

[0014] As shown in Figure 4 (Figure 4 is an enlarged view of area AR in Figure 3), carrier tape CT is composed of base tape BT and top tape TT. The base tape BT has a number of pockets PK that open upward and are arranged in a row at equal intervals along the length of the base tape BT. Each pocket PK contains a component BH. The top tape TT is attached to the top surface of the base tape BT and seals the component BH inside the pocket PK. A number of feed holes SH are arranged in a row at equal intervals in a position parallel to the row of pockets PK on the base tape BT.

[0015] 1 and 2, the base 11 is provided with a pair of carriage guide portions 11G that extend rearward and are arranged opposite each other in the X direction, and a pair of carriage holders 11H that also extend rearward and are arranged opposite each other in the X direction. The pair of carriage guide portions 11G are members that guide the left and right sides of the lower part of the carriage 21 when the carriage 21 is connected to the base 11. The pair of carriage holders 11H are members that lift up and support the left and right sides of the carriage 21 that is guided by the carriage guide portions 11G and comes close to the base 11.

[0016] In Fig. 5, a feeder base 31 is provided on the top of the carriage 21. A feeder mounting slot 31S for mounting a tape feeder 23 is provided on the top surface of the feeder base 31, extending in the Y direction. The tape feeder 23 functions as a component supply unit that supplies components BH to the component mounting device main body 1A, and can be mounted on the feeder base 31 by sliding a slide protrusion 23T (Fig. 5) provided on the bottom surface into the feeder mounting slot 31S of the feeder base 31. The feeder base 31 has a plurality of feeder mounting slots 31S arranged side by side in the X direction. Therefore, a plurality of tape feeders 23 can be mounted on the feeder base 31 side by side in the X direction.

[0017] 1, 2 and 5, the carriage 21 is provided with a cassette mounting section 33 formed in a generally flat plate shape at the rear (left side in each of these figures) of a carriage base 32 that is movable on a floor FL. As shown in Fig. 5, a pair of lower brackets 34 that extend upward are provided opposite each other in the X direction at the middle portion in the front-to-rear direction on the carriage base 32. The pair of lower brackets 34 support both ends of a lower support bar 35 that extends in the X direction.

[0018] 5, a pair of upper brackets 36 extending downward are provided facing each other in the X direction below the feeder base 31. Both ends of an upper support bar 37 extending in the X direction are supported by the pair of upper brackets 36. The upper support bar 37 extends above the lower support bar 35 and parallel to the lower support bar 35 (FIG. 5).

[0019] Figure 6 is a perspective view of the tape cassette 22. In Figures 3 and 6, the tape cassette 22 has a case-shaped storage section 41 and a shutter 42 serving as a regulating section provided within the storage section 41. The roll RT is stored in a vertical position within the storage section 41 of the tape cassette 22. Here, the "vertical position" refers to a position in which the central axis CJ of the disk-shaped roll RT is approximately horizontal.

[0020] In this embodiment, tape cassette 22 is used in two ways. In the first way, tape cassette 22 is used as a receiving portion for roll RT of carrier tape CT (current tape) currently being transported by tape feeder 23, and is mounted across carriage base 32 and cassette mounting portion 33. Such a tape cassette 22 used as a receiving portion for roll RT of current tape will be referred to as "receiving cassette 22A" hereinafter (FIGS. 2 and 5).

[0021] In a second use mode, tape cassette 22 is used as a storage device for storing a roll RT of carrier tape CT (refill tape) to be used when the current tape runs out, and is attached to carriage base 32. A tape cassette 22 used as a storage device for such a roll RT of refill tape will be referred to as a "storage cassette 22B" hereinafter (FIGS. 2 and 5). In this way, receiving cassette 22A and storage cassette 22B are tape cassettes 22 having the same structure.

[0022] Each tape feeder 23 mounted on the feeder base 31 is a so-called autoload feeder, which detects the insertion of the leading edge of the carrier tape CT through a tape inlet 23G (FIG. 2) provided at the rear end and feeds the carrier tape CT forward to supply components BH to a predetermined component supply port 23K. At this time, the tape feeder 23 feeds the carrier tape CT while drawing it out as the current tape from the roll RT in the receiving cassette 22A.

[0023] The leading end of a carrier tape CT (replenisher tape) pulled out from the roll RT in the storage cassette 22B can be inserted into the tape inlet 23G of the tape feeder 23 even before the current tape runs out of components. When the tape feeder 23 detects that the tail end of the current tape has passed a predetermined position within the tape feeder 23, it starts feeding the refill tape. This allows multiple carrier tapes CT to be fed continuously without interruption, and components BH are supplied to the component mounting device 1T without running out of components. The tape feeder 23 is a component supply unit that pulls out the carrier tape CT from the roll RT in the receiving cassette 22A and supplies the components BH to the mounting head 13, and then pulls out the carrier tape CT from the roll RT in the storage cassette 22B and supplies the components BH to the mounting head 13 following the carrier tape CT.

[0024] When component mounting device 1T performs a component mounting operation, first, board conveying unit 12 operates to carry in board KB from outside and position it at a predetermined work position. After board KB has been positioned at the work position by board conveying unit 12, tape feeder 23 repeatedly performs a mounting turn by supplying components BH to component supply port 23K and moving mounting head 13 with head moving mechanism 14.

[0025] In one mounting turn, the mounting head 13 moves to a position above the tape feeder 23 and picks up (picks up) components BH with the nozzle 13N, then moves to a position above the board KB and performs a series of operations to mount the components BH onto the board KB. By repeatedly performing mounting turns, once all the components BH to be mounted on the board KB have been mounted, the board transport unit 12 operates and transports the board KB to a downstream process device. This completes the component mounting operation for one board KB.

[0026] Next, the configuration of the tape cassette 22 used as the receiving cassette 22A or the storage cassette 22B for the roll RT of the carrier tape CT and the procedure for mounting it on the carriage 21 will be described.

[0027] FIG. 7 is a side view of the tape cassette 22. FIG. 8 is a front view of the tape cassette 22. FIG. 9 is an exploded perspective view of the tape cassette 22. FIG. 10 is a side view of a frame 43 included in the tape cassette 22. In FIGS. 6, 7, and 8, the tape cassette 22 has a storage section 41 and a shutter 42 serving as a regulating section provided within the storage section 41. The storage section 41 has a U-shaped frame 43 and a pair of plate members (side plates 44) attached to both sides of the frame 43 in the width direction. The space enclosed by the U-shaped frame 43 and the pair of side plates 44 forms a storage space 41S for storing the roll RT. The opening of the U-shaped frame 43 faces forward, and therefore a front opening 41K is formed in front of the storage section 41 as an opening.

[0028] As described above, in this embodiment, the storage unit 41 has a U-shaped frame 43 that surrounds the storage space 41S, and a pair of side plates 44 (plate members) that are fixed to the frame 43 and cover the sides of the storage space 41S. The storage unit 41 is configured to have a front opening 41K in front of it, facing the outer circumferential surface of the roll body RT.

[0029] 6, 8, and 9, frame 43 is composed of two frame members 43Z arranged side by side in the width direction. As shown in Figures 9 and 10, the upper side of frame 43 with its opening facing horizontally is upper frame 43a, and the lower side is lower frame 43b. An arc-shaped guide portion 43c is formed between upper frame 43a and lower frame 43b.

[0030] 6 and 8, when the frame 43 is sandwiched between the pair of side plates 44, the upper frame portion 43a of the frame 43 is positioned facing the upper edge of the side plate 44. The lower frame portion 43b of the frame 43 is positioned facing the lower edge of the side plate 44. As shown in Fig. 10, a shutter guide portion 43g (guide portion) that protrudes toward the center of the arc of the frame 43 is formed on the inner peripheral surface of the guide portion 43c. A guide surface 43F that slopes upward toward the front is provided on the lower surface of the front end portion of the upper frame portion 43a.

[0031] 6 and 10, the upper frame portion 43a is provided with an engagement groove 43M, a gripped portion 45, and a lower support bar engagement portion 43P, in this order from the front end side. The engagement groove 43M is provided facing the upper surface of the upper frame portion 43a and is open to the front. The gripped portion 45 is made of a block-shaped member.

[0032] 6 and 10, the frame lower portion 43b is provided with three pin insertion portions 43S aligned in the Y direction. An upper support bar engagement portion 43Q is formed in the region between the two front pin insertion portions 43S and the rear pin insertion portion 43S of the three pin insertion portions 43S.

[0033] 5, three storage cassette holding pins 33P are arranged in a row in the Y direction on the top surface of the cassette mounting section 33. These three storage cassette holding pins 33P constitute one cassette holding pin row 33L. A plurality of cassette holding pin rows 33L are arranged in a row in the X direction on the top surface of the cassette mounting section 33.

[0034] 5, one receiving cassette holding pin 33Q is provided in front of each cassette holding pin row 33L and coaxially with that cassette holding pin row 33L. That is, on the upper surface of the cassette mounting section 33, multiple pin rows are provided lined up in the X direction, each pin row including three storage cassette holding pins 33P (cassette holding pin row 33L) and one receiving cassette holding pin 33Q.

[0035] 11 and 12 are side cross-sectional views of a part of the component mounting device 1T. Figure 12 As shown in Fig. 10, the storage cassette 22B is mounted on the carriage 21 upside down, i.e., inverted. When the receiving cassette 22A is mounted on the carriage 21, as shown in Fig. 11, the lower support bar engaging portion 43P engages with the lower support bar 35, the upper support bar engaging portion 43Q engages with the upper support bar 37, and the engaging groove 43M engages with the receiving cassette holding pin 33Q. In this manner, in this embodiment, one receiving cassette holding pin 33Q, the lower support bar 35, and the upper support bar 37 form a receiving cassette mounting portion 38 (receiving portion mounting portion) in which the receiving cassette 22A is mounted. The tape cassette 22 has a secondary mounting portion 43R constituted by the upper support bar engaging portion 43Q of the frame upper portion 43a and the frame lower portion 43b (Figs. 10 and 11). By mounting the sub-mounting portion 43R to the receiving cassette mounting portion 38, the tape cassette 22 is mounted to the component mounting device 1T as the receiving cassette 22A. In this manner, the receiving cassette mounting portion 38 mounts the tape cassette 22 in an upside-down position.

[0036] As shown in Fig. 12, the storage cassette 22B is mounted on the carriage 21 by inserting three storage cassette holding pins 33P constituting one cassette holding pin row 33L into three pin insertion portions 43S provided on the frame lower portion 43b. In this manner, in this embodiment, the cassette holding pin row 33L (three storage cassette holding pins 33P aligned in a row in the Y direction) serves as a storage cassette mounting portion 39 (storage device mounting portion) to which the storage cassette 22B is mounted. The tape cassette 22 has a main mounting portion 43U (mounting portion) formed by the frame lower portion 43b (Figs. 10 and 12). By mounting the main mounting portion 43U to the storage cassette mounting portion 39, the tape cassette 22 is mounted on the component mounting device 1T as the storage cassette 22B.

[0037] 11 and 12, the receiving cassette mounting section 38 mounts the receiving cassette 22A with the front opening 41K of the receiving cassette 22A facing the storage cassette mounting section 39. The storage cassette mounting section 39 also mounts the storage cassette 22B with the front opening 41K of the storage cassette 22B facing the receiving cassette 22A mounted in the receiving cassette mounting section 38. In this manner, the receiving cassettes 22A and 22B are mounted on the carriage 21 with the front opening 41K of the receiving cassette 22A facing the front opening 41K of the storage cassette 22B. This makes it possible to move the roll RT stored in the storage cassette 22B to the receiving cassette 22A.

[0038] Furthermore, the receiving cassette mounting section 38 mounts the receiving cassette 22A at a lower position than the storage cassette 22B mounted in the storage cassette mounting section 39. This allows the roll RT to move smoothly from the storage cassette 22B to the receiving cassette 22A, and also prevents the roll RT stored in the receiving cassette 22A from moving to the storage cassette 22B.

[0039] Furthermore, the receiving cassette mounting section 38 mounts the receiving cassette 22A in an inclined position that becomes lower as it moves away from the storage cassette mounting section 39. This allows the roll RT to move smoothly from the storage cassette 22B to the receiving cassette 22A, and prevents the roll RT stored in the receiving cassette 22A from moving to the storage cassette 22B.

[0040] 13 and 14 are side cross-sectional views of the tape cassette 22. FIG. 15 is a side view of the shutter 42 provided in the tape cassette 22. In FIGS. 6, 13, and 14, the shutter 42 is provided in the storage space 41S of the storage section 41. As also shown in FIG. 15, the shutter 42 has an overall J-shape and includes an arc-shaped slider section 51 and a shutter tip section 52 that extends linearly from one end of the slider section 51. An operating lever 53 that extends outward (away from the center) of the arc-shaped slider section 51 is connected to the slider section 51 and is positioned so as to protrude toward the rear of the storage section 41.

[0041] 6, 7, and 8, a tape holding portion 54 is provided at the tip of the shutter 42 (the end of the shutter tip 52). The tape holding portion 54 is a plate-like portion that extends in the direction in which the shutter tip 52 extends. Two tape locking projections 55 extend protrudingly from the tip of the tape holding portion 54 as feed hole engagement portions. These two tape locking projections 55 are arranged parallel to one another in a plane perpendicular to the width direction of the storage section 41.

[0042] The outer peripheral surface of the arc-shaped slider portion 51 of the shutter 42 is guided by the aforementioned arc-shaped shutter guide portion 43g provided on the frame 43. When the operating lever 53 is operated, the shutter 42 is guided by the shutter guide portion 43g and slides within the inner region of the frame 43 in a rotational direction about an axis parallel to the X direction.

[0043] The shutter 42 assumes a closed position (first position) in which the shutter tip 52 extends in the up-down direction (Z direction) at the front of the storage space 41S to close the front opening 41K of the storage section 41 (FIG. 13). The shutter 42 also assumes an open position (second position) in which the shutter tip 52 extends in the front-to-back direction (Y direction) at the bottom of the storage space 41S to open the front opening 41K of the storage section 41 (FIG. 14). When the shutter 42 is in the closed position, the roll RT in the storage space 41S cannot pass through the front opening 41K and move out of the storage section 41. However, when the shutter 42 is in the open position, the roll RT in the storage space 41S can pass through the front opening 41K and move out of the storage section 41.

[0044] 10, 13, and 14, an opening-side stopper surface 43T is formed at the front end of the frame lower portion 43b. An abutment surface 52T, which is the end face of the shutter tip portion 52, is formed at the boundary between the slider portion 51 of the shutter 42 and the shutter tip portion 52 (FIG. 13). When the operating lever 53 is moved from the lower position to the upper position, the shutter 42 rotates clockwise in FIG. 13 (FIG. 13 → FIG. 14), and is positioned in the closed position when the abutment surface 52T abuts against the opening-side stopper surface 43T (FIG. 14).

[0045] 16A to 16F are cross-sections of various parts of the tape cassette 22 when the shutter 42 is in the closed position (cross-sections AA, BB, CC, DD, EE, and FF shown in FIG. 13), and FIG. 16G is a cross-section of part of the tape cassette 22 when the shutter 42 is in the open position (cross-section GG shown in FIG. 14).

[0046] 10 and 14, a closing-side stopper surface 43K is formed at the upper end (rear end) of the frame lower portion 43b. When the operating lever 53 is moved from the upper position to the lower position, the shutter 42 rotates counterclockwise in FIG. 14 (FIG. 14 → FIG. 13), and is positioned at the closed position when the operating lever 53 abuts against the closing-side stopper surface 43K (FIG. 13). In this way, in this embodiment, the operating lever 53 is an operating part that operates to displace the shutter 42 between the closed position (first position) and the open position (second position).

[0047] 17A to 17C are side views of the tape cassette 22 showing how a roll RT of carrier tape CT is inserted into and removed from the storage cassette 22B. To store the roll RT in the tape cassette 22, with the shutter 42 in the open position, the roll RT is inserted through the front opening 41K of the storage section 41 (arrow M1 shown in FIG. 17A), and the operation lever 53 is moved downward (arrow N1 shown in FIG. 17B). This moves the shutter 42 from the open position to the closed position, closing the front opening 41K of the storage section 41, and the roll RT is stored in the tape cassette 22 (FIG. 17B).

[0048] On the other hand, when removing the roll RT stored in the tape cassette 22, the operating lever 53 is moved upward (arrow N2 shown in FIG. 17C), which moves the shutter 42 from the closed position to the open position, opening the front opening 41K of the storage section 41, making it possible to remove the roll RT from the storage section 41 (arrow M2 shown in FIG. 17C).

[0049] As described above, in the present embodiment, tape cassette 22 as a storage device includes storage section 41 having storage space 41S for storing roll RT and provided with front opening 41K at the front through which roll RT can be taken in and out, and shutter 42 as a restricting section that moves between a first position (closed position) that blocks at least a part of front opening 41K to restrict roll RT stored in storage space 41S from moving through front opening 41K to the outside of storage section 41, and a second position (open position) that allows roll RT stored in the storage space to move through front opening 41K to the outside of storage section 41. Shutter 42 also includes slider section 51 that slides while being guided by shutter tip section 52 located at front opening 41K and shutter guide section 43g provided on frame 43 when shutter 42 is displaced to the closed position.

[0050] Incidentally, multiple types of tape cassettes 22 with different width dimensions are required to accommodate different width dimensions of the roll RT. As described above, the frame 43 is composed of two frame members 43Z (FIGS. 6 and 8). Therefore, by making one of the frame members 43Z have a thickness corresponding to the width dimension of the roll RT and making the other frame member 43Z common to all width dimensions of the roll RT, it is possible to standardize the components and reduce the manufacturing costs of multiple types of tape cassettes 22. FIGS. 18A, 18B, and 18C are front views showing examples of multiple types of tape cassettes 22 with different width dimensions. FIG. 19 is a perspective view of an example of a tape cassette 22 with the largest width dimension.

[0051] 18A shows a configuration in which one of the two frame members 43Z is removed and a single frame member 43Z is used in common, which can accommodate a case in which the width dimension of the roll RT (i.e., the carrier tape CT) is smaller than the case described above. FIG. 18B shows a configuration in which the width dimension of one of the two frame members 43Z is increased, which can accommodate a case in which the width dimension of the roll RT is larger than the case described above.

[0052] FIG. 18C shows two frame members 43Z connected by a rod-shaped spacer SP, which allows for a roll RT with an even larger width dimension than the case of FIG. 18B (see also FIG. 19). The two frame members 43Z connected by the spacer SP are used in common. In the cases of FIGS. 18B and 18C, a gripped portion 45 is provided on each of the two frame members 43Z. This is because, when the tape cassette 22 is lifted by gripping the gripped portion 45, if the gripped portion 45 is provided on only one of the two frame members 43Z, the tape cassette 22 will tilt from the vertical position due to the position of its overall center of gravity, making it difficult to install it on the dolly 21. Furthermore, if one gripped portion 45 is gripped to forcibly bring the tape cassette 22 into the vertical position, an excessive bending moment may act on the gripped portion 45, potentially damaging the gripped portion 45.

[0053] Next, a procedure for attaching the tape cassette 22 to the component supply unit 1B of the component mounting device 1T will be described. When attaching the tape cassette 22 to the component supply unit 1B, first, the receiving cassette 22A is attached to the receiving cassette attachment portion 38 of the cart 21, which is the receiving portion attachment portion.

[0054] When loading the receiving cassette 22A into the receiving cassette loading section 38, the operator first positions the shutter 42 in the open position (second position) using the operating lever 53, then turns the tape cassette 22 upside down. Then, the lower support bar engaging portion 43P provided on the frame upper portion 43a engages with the lower support bar 35, the upper support bar engaging portion 43Q provided on the frame lower portion 43b engages with the upper support bar 37, and the engaging groove 43M provided on the frame upper portion 43a engages with the receiving cassette holding pin 33Q (FIGS. 11 and 12). When the receiving cassette 22A is loaded on the dolly 21, the tape cassette 22 is tilted slightly forward and downward, and the guide surface 43F provided on the frame upper portion 43a is substantially horizontal (FIG. 12). The shutter 42 of the receiving cassette 22A loaded on the dolly 21 is also in the open position (second position).

[0055] After the receiving cassette 22A is mounted in the receiving cassette mounting portion 38 of the carriage 21 as described above, the storage cassette 22B storing the roll RT is mounted in the storage cassette mounting portion 39 of the carriage 21. The shutter 42 of the storage cassette 22B is positioned in the closed position until immediately before the storage cassette 22B is mounted in the storage cassette mounting portion 39, and the leading end of the carrier tape CT pulled out from the roll RT is held by the tape holding portion 54 of the shutter 42 positioned in the closed position ( FIG. 12 ).

[0056] Here, the leading end of the carrier tape CT is held by the tape holding portion 54 when two tape locking projections 55 provided on the tape holding portion 54 are locked from below into two of the multiple feed holes SH provided in the leading end of the carrier tape CT pulled out from the roll RT (FIGS. 6 and 12). In this state, the leading end of the carrier tape CT is in a substantially horizontal position.

[0057] As described above, in this embodiment, the tape holding portion 54 provided at the tip of the shutter 42 (shutter tip portion 52) has two tape locking projections 55 as sprocket hole engaging portions that can engage with the sprocket holes SH of the carrier tape CT. These tape locking projections 55 are configured to hold the carrier tape CT pulled out from the roll RT. At this time, the leading edge of the carrier tape CT is in a horizontal position. In other words, when the shutter 42 is positioned (displaced) to the closed position (first position), the tape holding portion 54 holds the carrier tape CT horizontally.

[0058] When loading the storage cassette 22B into the storage cassette loading section 39, the worker grips the gripped parts 45 provided on the frame upper part 43a of the frame 43 (if there are two gripped parts 45, the worker grips both gripped parts 45), and then lifts up the storage cassette 22B. Then, the worker pinches the leading end of the carrier tape CT held by the tape holding part 54 with his / her fingers and inserts it into the tape inlet 23G at the rear end of the tape feeder 23.

[0059] When the tape feeder 23 with the carrier tape CT inserted detects that the leading end of the carrier tape CT has been inserted into the tape inlet 23G, it starts to pull in the carrier tape CT. Once the tape feeder 23 starts to pull in the carrier tape CT, the operator moves the operating lever 53 upward to move the shutter 42 from the closed position to the open position, thereby opening the front opening 41K of the storage cassette 22B.

[0060] 20A and 20B are side cross-sectional views of a portion of the component mounting device 1T showing the procedure for installing the tape cassette 22. After inserting the leading end of the carrier tape CT pulled out from the roll RT into the tape inlet 23G of the tape feeder 23, the operator operates the operating lever 53 to position the shutter 42 in the open position. This opens the front opening 41K of the storage cassette 22B, and then the operator moves the storage cassette 22B above the storage cassette mounting portion 39 (FIG. 20A). The storage cassette 22B is then lowered so that the three storage cassette holding pins 33P constituting the cassette holding pin row 33L of the storage cassette mounting portion 39 are inserted into the three pin insertion portions 43S provided on the frame lower portion 43b of the storage cassette 22B, thereby mounting the storage cassette 22B on the storage cassette mounting portion 39 (i.e., on the carriage 21) (FIG. 20B).

[0061] When the worker mounts the storage cassette 22B in the storage cassette mounting portion 39, the worker ensures that the front end 43E of the lower portion (frame lower portion 43b) of the storage cassette 22B passes between the pair of protruding portions 44H of the receiving cassette 22A mounted in the receiving cassette mounting portion 38 (FIG. 20A → FIG. 20B). As shown in FIG. 8, the lower end of the frame lower portion 43b is formed with a tapered surface 43D shaped (narrowing downward) to make it easier for the frame lower portion 43b to be guided between the pair of protruding portions 44H.

[0062] When the storage cassette 22B is attached to the storage cassette attachment portion 39 as described above (with the front end 43E of the lower portion passing between the pair of protruding portions 44H of the receiving cassette 22A), the pair of side plates 44 of the storage cassette 22B are positioned inside the pair of side plates 44 of the receiving cassette 22A ( FIG. 20B ). Therefore, the storage cassette 22B is sandwiched between the pair of side plates 44 of the receiving cassette 22A located in front of it, and movement in the X direction (the direction in which it falls sideways) is suppressed, thereby stabilizing its posture on the cart 21.

[0063] Furthermore, at least a portion of the front opening 41K of the storage cassette 22B is inserted into the front opening 41K of the receiving cassette 22A. In other words, the storage cassette mounting unit 39 mounts the storage cassette 22B in a state in which at least a portion of the front opening 41K of the storage cassette 22B is inserted into the front opening 41K of the receiving cassette 22A. This positions the side plates 44 of the storage cassette 22B more inward than the side plates 44 of the receiving cassette 22A, thereby preventing a problem such as the roll RT moving from the storage cassette 22B to the receiving cassette 22A getting caught on the edges of the side plates 44.

[0064] As described above, in this embodiment, the storage section 41 of the tape cassette 22 (storage cassette 22B) is configured to include pin insertion sections 43S, which are engaged sections that can engage with the cassette holding pin row 33L (three storage cassette holding pins 33P), which are positioning sections of the carriage 21 (i.e., of the component mounting device 1T). The storage cassette 22B is positioned and held by the storage cassette mounting section 39, which is made up of the cassette holding pin row 33L (three storage cassette holding pins 33P). The storage cassette 22B held in the storage cassette mounting section 39 is sandwiched between a pair of side plates 44 of the receiving cassette 22A located in front of it, thereby preventing movement in the X direction (the direction in which it falls sideways).

[0065] 21A and 21B are side cross-sectional views of a portion of the component mounting device 1T showing the movement of the roll RT. FIGS. 22A and 22B are side cross-sectional views of a portion of the component mounting device 1T showing the procedure for removing the tape cassette 22. When the tape feeder 23 draws in the carrier tape CT during the process of loading the storage cassette 22B into the storage cassette loading section 39, if the drawn-in carrier tape CT is the current tape, it continues to feed the carrier tape CT and supplies components BH. If the drawn-in carrier tape CT is a refill tape, it keeps the refill tape waiting until it detects that the tail of the current tape has passed a predetermined position within the tape feeder 23. When the tape feeder 23 starts feeding the refill tape, the roll RT stored in the storage cassette 22B is pulled by the carrier tape CT being fed by the tape feeder 23 and rolls forward, moving into the storage section 41 of the receiving cassette 22A located in front of it (FIG. 21A → FIG. 21B → FIG. 22A).

[0066] As described above, when the roll RT moves from the storage cassette 22B into the receiving cassette 22A, the roll RT is guided by the guide surface 43F of the receiving cassette 22A. Furthermore, the pair of side plates 44 of the storage cassette 22B are located inside the pair of side plates 44 of the receiving cassette 22A located in front of them. Therefore, the roll RT moves smoothly into and is stored in the receiving cassette 22A (FIG. 21B → FIG. 22A).

[0067] 23A and 23B are side cross-sectional views of a portion of the component mounting device 1T showing the procedure for installing the tape cassette 22. When the roll RT stored in the storage cassette 22B moves into the receiving cassette 22A, the storage cassette 22B becomes empty. The empty storage cassette 22B is removed from the cart 21 (cassette mounting unit 33) so that the next refill tape roll RT (storage cassette 22B) can be mounted on the cart 21 (FIG. 22B). Then, when the tape feeder 23 has progressed in supplying components BH, the operator mounts a new tape cassette 22 in the cassette mounting unit 33 in the manner described above (FIG. 23A → FIG. 23B).

[0068] 24A and 24B are side cross-sectional views of a part of the component mounting device 1T showing the movement of the roll RT. As the transport of the carrier tape CT by the tape feeder 23 progresses, the roll RT in the receiving cassette 22A moves. of When it is detected that the tail of the carrier tape CT has passed a predetermined position within the tape feeder 23, the tape feeder 23 feeds the replenishment tape (carrier tape CT in the storage cassette 22B) that had been in a standby state as the new current tape (FIG. 24A), and continues to supply components BH. When the tape feeder 23 starts to feed the carrier tape CT from the roll RT stored in the storage cassette 22B, the roll RT of the carrier tape CT is pulled and rolled forward into the storage section 41 of the receiving cassette 22A attached in front of it (FIG. 24A → FIG. 24B). This empties the storage cassette 22B and returns it to the state shown in FIG. 22A. The process of FIG. 22A → FIG. 22B → FIG. 23A → FIG. 23B → FIG. 24A → FIG. 24B → FIG. 22A is then repeated. Therefore, the component mounting device 1T can continue to supply components BH via the tape feeder 23 while receiving a replenishment of the roll RT (i.e., carrier tape CT).

[0069] After the component mounting device 1T finishes mounting components, the receiving cassette 22A may contain the carrier tape CT and its roll RT that were not used by the component mounting device 1T. The remaining roll RT is either stored or used by another component mounting device 1T that produces a different mounted board. In this case, the receiving cassette 22A is a tape cassette 22 that can be used as a storage cassette 22B. Therefore, the receiving cassette 22A containing the remaining roll RT can be removed from the receiving cassette mounting section 38 and stored as is. When used with the component mounting device 1T, the removed receiving cassette 22A is used as the storage cassette 22B. In this case, because the receiving cassette 22A is a tape cassette 22 that is used upside down, the winding direction of the roll RT stored in the receiving cassette 22A is the same as the winding direction when used as the storage cassette 22B. Therefore, when using the receiving cassette 22A as the storage cassette 22B, the work of removing the roll RT, reversing its orientation, and storing it again can be omitted.

[0070] As explained above, the tape cassette 22 (storage device) in this embodiment supplies the roll RT of carrier tape CT containing components BH to the component mounting device 1T, and is configured to include a storage section 41 and a shutter 42. The storage section 41 has a storage space 41S for storing the roll RT, and also has a front opening 41K at the front through which the roll RT can be taken in and out. The shutter 42 is displaceable between a closed position (first position) that blocks at least a portion of the front opening 41K to prevent the roll RT from passing through the front opening 41K and moving out of the storage section 41, and an open position (second position) that allows the roll RT to pass through the front opening 41K and move out of the storage section 41. The tape cassette 22 as a storage device (storage cassette 22B) is mounted on the cart 21 with the front opening 41K of the storage section 41 facing the component mounting device 1T, and with the shutter 42 positioned in the open position, the tape cassette 22 supplies the roll body RT to the component mounting device 1T.

[0071] In the tape cassette 22 of the present embodiment, when the shutter 42 is positioned in the closed position (first position), the roll RT stored in the storage space 41S does not fly out of the storage space 41S. On the other hand, by positioning the shutter 42 in the open position (second position), the stored roll RT can be removed from the storage space 41S. Therefore, with the tape cassette 22 of the present embodiment, the stored roll RT can be prevented from unexpectedly flying out, and the roll RT can be reliably supplied to the component mounting device 1T.

[0072] The component mounting device 1T of this embodiment is also configured to include a storage cassette mounting section 39 (storage device mounting section) into which a storage cassette 22B (storage device) storing a roll RT of carrier tape CT (refill tape) is mounted, and a receiving cassette mounting section 38 (receiving section mounting section) into which a receiving cassette 22A (receiving section) is mounted, which receives the roll RT supplied from the storage cassette 22B mounted in the storage cassette mounting section 39 through its front opening 41K. That is, in the component mounting device 1T of this embodiment, the storage device (storage cassette 22B) that stores the refill tape roll RT is mounted directly to the carriage 21, rather than being mounted on the storage device (receiving cassette 22A) that holds the current tape roll RT. Therefore, the component mounting device 1T of this embodiment can stably hold not only small rolls RT but also large rolls RT to perform component mounting operations. That is, the component mounting device 1T of this embodiment can easily accommodate larger rolls.

[0073] As described above, the component mounting device 1T in this embodiment can easily accommodate an increase in the size of the roll body.

[0074] Although the embodiments of the present disclosure have been described above, the present disclosure is not limited to the above and various modifications are possible. For example, in the above-described embodiments, the shutter 42 of the tape cassette 22 has an overall J-shape, but it need not be J-shaped as long as it is displaceable between a closed position (first position) that closes the front opening 41K of the storage section 41 and an open position (second position) that opens the front opening 41K. [Industrial Applicability]

[0075] It is possible to provide a component mounting device that can accommodate larger roll bodies. [Explanation of symbols]

[0076] 1T parts mounting equipment 13 Mounting head 22 Tape Cassette 22A Receptor Cassette 22B storage cassette (storage device) 23 Tape feeder (component supply unit) 33P Storage cassette holding pin (positioning part) 38 Receiving cassette mounting part (receiving part mounting part) 39 Storage cassette mounting section (storage device mounting section) 41 Storage area 41K Front opening (opening) 41S Storage Space 42 Shutter (regulating part) 43 frames 43g Shutter guide (guide) 43S Pin insertion part (engaged part) 43U Main mounting part (mounting part) 43R Sub-mounting part 44 Side plate (plate member) 51 Slider section 52 Shutter tip (tip) 53 Operating lever 54 Tape holding part 55 Tape retaining protrusion (feed hole engaging portion) CT carrier tape SH feed hole RT Roll Body CJ center axis BH parts

Claims

1. A component mounting device that picks up components from a carrier tape containing the components and mounts the components on a substrate, a mounting head that picks up the component and mounts it on the substrate; a storage cassette having a first storage space for storing the roll of carrier tape and having a first opening at the front through which the roll can be inserted and removed; a storage cassette mounting portion to which the storage cassette is mounted; a receiving cassette having a second storage space for storing the roll of the carrier tape, the receiving cassette having a second opening at the front through which the roll can be inserted and removed, the receiving cassette storing the roll supplied from the storage cassette attached to the storage cassette attachment section; a receiving cassette mounting portion to which the receiving cassette is mounted; a component supply unit that pulls out the carrier tape from the roll of the receiving cassette that is attached to the receiving cassette attachment section, and supplies the components to the mounting head, and pulls out the carrier tape from the roll of the storage cassette that is attached to the storage cassette attachment section, following the carrier tape, and supplies the components to the mounting head; Equipped with The storage cassette includes a storage section having the first storage space for storing the roll body and provided with the first opening, and a first restriction section that is displaceable between a first position that restricts the roll body from passing through the first opening to the outside of the first storage space by blocking at least a part of the first opening, and a second position that allows the roll body to pass through the first opening to the outside of the first storage space. Parts mounting device.

2. the receiving cassette mounting portion mounts the receiving cassette with the second opening of the receiving cassette facing the storage cassette mounting portion; the storage cassette mounting section mounts the storage cassette with the first opening of the storage cassette facing the receiving cassette mounted in the receiving cassette mounting section; The component mounting device according to claim 1 .

3. the storage cassette mounting section mounts the storage cassette in a state in which at least a portion of the first opening of the storage cassette is inserted into the second opening of the receiving cassette; 3. The component mounting device according to claim 1 or 2.

4. the receiving cassette mounting portion mounts the receiving cassette at a position lower than the storage cassette mounted in the storage cassette mounting portion; The component mounting device according to any one of claims 1 to 3.

5. the receiving cassette mounting portion mounts the receiving cassette in an inclined position that becomes lower as it moves away from the storage cassette mounting portion; The component mounting device according to any one of claims 1 to 4.

6. the storage cassette and the receiving cassette are tape cassettes having the same structure; The component mounting device according to any one of claims 1 to 5.

7. The receiving cassette mounting portion mounts the tape cassette in an upside-down position. The component mounting device according to claim 6.

8. the receiving cassette has a second restricting portion that is displaceable between a third position that restricts the roll body from passing through the second opening to the outside of the second storage space by blocking at least a part of the second opening, and a fourth position that allows the roll body to pass through the second opening to the outside of the second storage space, the second restricting portion of the receiving cassette attached to the receiving cassette attachment portion is located at the fourth position, and the first restricting portion of the storage cassette attached to the storage cassette attachment portion is located at the first position; The component mounting device according to claim 1 .

9. a component mounting device body having the mounting head; and a carriage that is detachably attached to the component mounting device body; the storage cassette mounting portion and the receiving cassette mounting portion are provided on the carriage; The component mounting device according to any one of claims 1 to 8.

Images