Storage device

Abstract

To provide a storage device that can prevent the stored roll from unexpectedly flying out. [Solution] The tape cassette 22 of this disclosure, which stores a roll of carrier tape RT, comprises a storage section 41 and a shutter 42. The storage section 41 has a storage space 41S for storing the roll of tape RT, and is provided with a front opening 41K through which the roll of tape RT can be inserted and removed. The shutter 42 is displaceable between a closed position that restricts the roll of tape RT from passing through the front opening 41K and moving outside the storage section 41 by blocking at least a portion of the front opening 41K, and an open position that allows the roll of tape RT to pass through the front opening 41K and move outside the storage section 41. The storage section 41 is mounted on a component mounting device with the front opening 41K facing the component mounting device, and the roll of tape RT is supplied to the component mounting device with the shutter 42 in the open position.

Description

Technical Field

[0001] The present disclosure relates to a storage device for storing a roll of a carrier tape storing components.

Background Art

[0002] Conventionally, as a component supply unit used in a component mounting device for mounting components on a substrate, a tape feeder that conveys a carrier tape storing components and supplies the components to a predetermined component supply port is known. The carrier tape is wound around a core of a reel as a tape holding body, and transportation, storage, setting for the tape feeder, etc. of the carrier tape are performed while being wound around the reel.

[0003] In addition, it has also been proposed to eliminate a tape holding body such as the above reel and perform transportation, storage, setting for the tape feeder, etc. in a state of a roll body obtained by winding the carrier tape in a disk shape without a core (for example, Patent Document 1). In Patent Document 1, a roll body is stored in a case-shaped storage device with a part thereof being open, and the storage device storing the roll body can be provided together with a tape feeder.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the storage device described in Patent Document 1 above, when the posture of the storage device is changed, the roll body may unexpectedly jump out of the storage unit. Therefore, when carrying the storage unit with the roll body stored, it has been necessary to pay attention to the jump-out of the roll body.

[0006] The purpose of this disclosure is to provide a storage device that can prevent the stored roll from unexpectedly flying out. [Means for solving the problem]

[0007] The storage device of the present disclosure is a storage device for storing a roll of carrier tape containing components and for supplying the roll to a component mounting device, comprising: a storage section having a storage space for storing the roll and an opening at the front through which the roll can be inserted and removed; a restricting section that is displaced between a first position that restricts the roll from passing through the opening and moving outside the storage space by closing at least a part of the opening, and a second position that allows the roll to pass through the opening and move outside the storage space, and further comprising a mounting section that is attached to a storage device mounting section of a component mounting device, wherein when the mounting section is attached to the storage device mounting section, the storage device is mounted on the component mounting device with the opening facing the component mounting device, and the roll is supplied to the component mounting device with the restricting section in the second position. [Effects of the Invention]

[0008] According to the present invention, it is possible to prevent the stored roll from unexpectedly flying out. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a side view of the main part of a component mounting device equipped with a tape cassette in one embodiment of the present disclosure. [Figure 2] Figure 2 is a side view of the component supply section of a component mounting device in one embodiment of the present disclosure. [Figure 3] Figure 3 is a perspective view showing a tape cassette, along with a roll of carrier tape stored therein, in a component mounting device according to one embodiment of the present disclosure. [Figure 4] Figure 4 is an enlarged perspective view of a portion of the carrier tape pulled from a roll used in a component mounting device in one embodiment of the present disclosure. [Figure 5] Figure 5 is a side view showing the components of a component supply unit in a component mounting device according to one embodiment of the present disclosure. [Figure 6] Figure 6 is a perspective view of a tape cassette in one embodiment of the present disclosure. [Figure 7] Figure 7 is a side view of a tape cassette in one embodiment of the present disclosure. [Figure 8] Figure 8 is a front view of a tape cassette in one embodiment of the present disclosure. [Figure 9] Figure 9 is an exploded perspective view of a tape cassette in one embodiment of the present disclosure. [Figure 10] Figure 10 is a side view of the frame of a tape cassette in one embodiment of the present disclosure. [Figure 11] Figure 11 is a side cross-sectional view of a part of a component mounting device in one embodiment of the present disclosure. [Figure 12] Figure 12 is a side cross-sectional view of a part of a component mounting device in one embodiment of the present disclosure. [Figure 13] Figure 13 is a side cross-sectional view of a tape cassette in one embodiment of the present disclosure. [Figure 14] Figure 14 is a side cross-sectional view of a tape cassette in one embodiment of the present disclosure. [Figure 15] Figure 15 is a side view of a shutter provided in a tape cassette according to one embodiment of the present disclosure. [Figure 16A] Figure 16A is a cross-sectional view of a tape cassette in one embodiment of the present disclosure. [Figure 16B] Figure 16B is a cross-sectional view of a tape cassette in one embodiment of the present disclosure. [Figure 16C] Figure 16C is a cross-sectional view of a tape cassette in one embodiment of the present disclosure. [Figure 16D] Figure 16D is a cross-sectional view of a tape cassette in one embodiment of the present disclosure. [Figure 16E] Figure 16E is a cross-sectional view of a tape cassette in one embodiment of the present disclosure. [Figure 16F] FIG. 16F is a cross-sectional view of a tape cassette in one embodiment of the present disclosure. [Figure 16G] FIG. 16G is a cross-sectional view of a tape cassette in one embodiment of the present disclosure. [Figure 17A] FIG. 17A is a side view of a tape cassette showing a state of inserting and removing a roll body of a carrier tape into and from a storage cassette in one embodiment of the present disclosure. [Figure 17B] FIG. 17B is a side view of a tape cassette showing a state of inserting and removing a roll body of a carrier tape into and from a storage cassette in one embodiment of the present disclosure. [Figure 17C] FIG. 17C is a side view of a tape cassette showing a state of inserting and removing a roll body of a carrier tape into and from a 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 widthwise dimensions in one embodiment of the present disclosure. [Figure 18B] FIG. 18B is a front view of a plurality of types of tape cassettes having different widthwise dimensions in one embodiment of the present disclosure. [Figure 18C] FIG. 18C is a front view of a plurality of types of tape cassettes having different widthwise dimensions in one embodiment of the present disclosure. [Figure 19] FIG. 19 is a perspective view of an example of a tape cassette having the largest widthwise dimension in one embodiment of the present disclosure. [Figure 20A] FIG. 20A is a partial side cross-sectional view of a component mounting apparatus showing an attachment procedure of a tape cassette in one embodiment of the present disclosure. [Figure 20B] FIG. 20B is a partial side cross-sectional view of a component mounting apparatus showing an attachment procedure of a tape cassette in one embodiment of the present disclosure. [Figure 21A] FIG. 21A is a partial side cross-sectional view of a component mounting apparatus showing a state of movement of a roll body in one embodiment of the present disclosure. [Figure 21B]Figure 21B is a side cross-sectional view of a part of a component mounting device showing the movement of a roll body in one embodiment of the present disclosure. [Figure 22A] Figure 22A is a side cross-sectional view of a part of a component mounting device showing the procedure for removing a tape cassette in one embodiment of the present disclosure. [Figure 22B] Figure 22B is a side cross-sectional view of a part of a component mounting device showing the procedure for removing a tape cassette in one embodiment of the present disclosure. [Figure 23A] Figure 23A is a side cross-sectional view of a part of a component mounting device showing the procedure for mounting a tape cassette in one embodiment of the present disclosure. [Figure 23B] Figure 23B is a side cross-sectional view of a part of a component mounting device showing the procedure for mounting a tape cassette in one embodiment of the present disclosure. [Figure 24A] Figure 24A is a side cross-sectional view of a part of a component mounting device showing the movement of a roll body in one embodiment of the present disclosure. [Figure 24B] Figure 24B is a side cross-sectional view of a part of a component mounting device showing the movement of a roll body in one embodiment of the present disclosure. [Modes for carrying out the invention]

[0010] Embodiments of the present disclosure will be described below with reference to the drawings. Figure 1 shows a side view of the main part of a component mounting device 1T in one embodiment of the present disclosure. The component mounting device 1T is a device that repeatedly performs a series of component mounting operations, mounting components BH onto a substrate KB brought in from another device in the upstream process and transporting it to another device in the downstream process, and comprises a component mounting device main body 1A and a component supply unit 1B.

[0011] In Figure 1, the main body 1A of the component mounting device comprises a base 11, a substrate transport unit 12, a mounting head 13, and a head movement mechanism 14. The substrate transport unit 12 consists of a conveyor mechanism and transports the substrate KB received from the upstream process equipment horizontally to position it at a predetermined work position. In this embodiment, the transport direction of the substrate KB in the component mounting device 1T is the X direction (lateral direction), and the vertical direction is the Z direction. The direction perpendicular to both the X and Z directions is the Y direction (front-back direction).

[0012] In Figure 1, the mounting head 13 is equipped with multiple nozzles 13N extending downward, and a vacuum suction force can be generated at the lower end of each nozzle 13N to attract the component BH. The head movement mechanism 14 consists of, for example, an XY table and moves the mounting head 13 in the XY plane.

[0013] Figure 2 is a side view of the parts supply unit 1B of the parts loading device 1T. Figure 3 is a perspective view showing the tape cassette 22 of the parts loading device 1T together with the roll body RT of the carrier tape CT stored therein. Figure 4 is an enlarged perspective view of a portion of the carrier tape CT pulled out from the roll body RT used in the parts loading device 1T. Figure 5 is a side view showing the components of the parts supply unit 1B of the parts loading device 1T. In Figures 1 and 2, the parts supply unit 1B includes a trolley 21, a tape cassette 22, and a tape feeder 23. The tape cassette 22 is configured to store a roll body RT of the carrier tape CT (hereinafter simply referred to as the roll body RT), in which the carrier tape CT is wound in a disc shape without a core (see also Figure 3). In other words, the tape cassette 22 handles the roll body 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), the carrier tape CT is composed of a base tape BT and a top tape TT. The base tape BT has numerous pockets PK that open upwards, arranged in a row at equal intervals along the longitudinal direction of the base tape BT, and each pocket PK houses a component BH. The top tape TT is attached to the upper surface of the base tape BT and encloses the component BH in the pockets PK. Multiple feed holes SH are arranged in a row at equal intervals parallel to the row of pockets PK on the base tape BT.

[0015] In Figures 1 and 2, the base 11 is provided with a pair of trolley guide sections 11G extending to the rear and positioned opposite each other in the X direction, and a pair of trolley holding sections 11H also extending to the rear and positioned opposite each other in the X direction. The pair of trolley guide sections 11G are members that guide the left and right sides of the lower part of the trolley 21 when the trolley 21 is connected to the base 11. The pair of trolley holding sections 11H are members that lift and support the left and right sides of the trolley 21 when it is guided by the trolley guide sections 11G and approaches the base 11.

[0016] In Figure 5, a feeder base 31 is provided on the upper part of the trolley 21. A feeder mounting slot 31S for mounting a tape feeder 23 is provided on the upper surface of the feeder base 31, extending in the Y direction. The tape feeder 23 functions as a parts supply unit that supplies parts BH to the main body 1A of the parts mounting device. The tape feeder 23 can be mounted on the feeder base 31 by sliding the sliding projection 23T (Figure 5) provided on the lower surface into the feeder mounting slot 31S of the feeder base 31. Multiple feeder mounting slots 31S are provided on the feeder base 31 in the X direction. Therefore, multiple tape feeders 23 can be mounted on the feeder base 31 in the X direction.

[0017] In Figures 1, 2, and 5, the trolley 21 has a cassette mounting section 33, which is formed as a flat plate overall, at the rear of the trolley base 32 (on the left side in each of these figures), which is movable on the floor FL. As shown in Figure 5, a pair of lower brackets 34 that protrude upward are provided on the middle of the trolley base 32 in the front-rear direction, facing each other in the X direction. The ends of a lower support bar 35 that extends in the X direction are supported by this pair of lower brackets 34.

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

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

[0020] In this embodiment, the tape cassette 22 is used in two ways. The first way of using it is as a receiving part for the roll body RT of the carrier tape CT (current tape) that the tape feeder 23 is currently transporting, and it is mounted spanning the trolley base 32 and the cassette mounting part 33. A tape cassette 22 used as a receiving part for the roll body RT of the current tape in this way will be hereinafter referred to as "receiving cassette 22A" (Figures 2 and 5).

[0021] A second use of the tape cassette 22 is as a storage device for storing a roll of carrier tape CT (replacement tape) used as a replacement when the current tape runs out of parts, and it is mounted on the trolley base 32. A tape cassette 22 used as a storage device for such a roll of replacement tape RT will be hereinafter referred to as "storage cassette 22B" (Figures 2 and 5). Thus, the receiving cassette 22A and the 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 auto-load feeder. When the leading edge of the carrier tape CT is inserted through the tape inlet 23G (Figure 2) located at the rear end of each tape feeder 23, it detects this and transports the carrier tape CT forward, supplying parts BH to a predetermined parts supply port 23K. At this time, the tape feeder 23 transports the carrier tape CT as the current tape while pulling it out from the roll RT in the receiving cassette 22A.

[0023] The tape feeder 23's tape inlet 23G allows the leading edge of a carrier tape CT (refill tape) pulled from the roll RT in the storage cassette 22B to be inserted before the current tape runs out of parts. The tape feeder 23 starts transporting the refill tape when it detects that the trailing edge of the current tape has passed a predetermined position within the tape feeder 23. This ensures that multiple carrier tapes CT are transported continuously without interruption, and parts BH are supplied to the parts mounting device 1T without any parts running out. The tape feeder 23 is a parts supply unit that pulls a carrier tape CT from the roll RT of the receiving cassette 22A and supplies parts BH to the mounting head 13, and then pulls a carrier tape CT from the roll RT of the storage cassette 22B and supplies parts BH to the mounting head 13.

[0024] When the component mounting device 1T performs component mounting work, first the substrate transport unit 12 operates to bring in the substrate KB from the outside and position it at a predetermined work position. Once the substrate KB is positioned at the work position by the substrate transport unit 12, the tape feeder 23 repeatedly performs a mounting turn by coordinating the operation of supplying component BH to the component supply port 23K with the operation of the head moving mechanism 14 moving the mounting head 13.

[0025] In one mounting turn, the mounting head 13 moves to a position above the tape feeder 23, picks up the component BH with the nozzle 13N, then moves to a position above the substrate KB, and performs a series of operations to mount the component BH onto the substrate KB. The mounting turns are repeated until all the component BH to be mounted on the substrate KB is mounted, at which point the substrate transport unit 12 operates to transport the substrate KB to the downstream process equipment. This completes the component mounting work for one substrate KB.

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

[0027] Figure 7 is a side view of the tape cassette 22. Figure 8 is a front view of the tape cassette 22. Figure 9 is an exploded perspective view of the tape cassette 22. Figure 10 is a side view of the frame 43 of the tape cassette 22. In Figures 6, 7, and 8, the tape cassette 22 has a storage section 41 and a shutter 42 as a restricting section provided within the storage section 41. The storage section 41 comprises 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 is a storage space 41S for storing the roll body RT. The U-shaped frame 43 has its opening facing forward. Therefore, a front opening 41K is formed in front of the storage section 41.

[0028] In this embodiment, the storage unit 41 has a U-shaped frame 43 surrounding the storage space 41S, and a pair of side plates 44 (plate members) fixed to the frame 43 that cover the sides of the storage space 41S. The storage unit 41 has a front opening 41K facing the outer circumferential surface of the roll body RT.

[0029] In Figures 6, 8, and 9, the frame 43 is composed of two frame members 43Z aligned in the width direction. As shown in Figures 9 and 10, the upper part of the frame 43 with the opening oriented laterally is the upper frame section 43a, and the lower part is the lower frame section 43b. An arc-shaped guide section 43c is located between the upper frame section 43a and the lower frame section 43b.

[0030] In Figures 6 and 8, when the frame 43 is sandwiched between a pair of side plates 44, the upper part 43a of the frame 43 faces the upper edge of the side plate 44, and the lower part 43b of the frame 43 faces the lower edge of the side plate 44. As shown in Figure 10, a shutter guide portion 43g (guide portion) is formed on the inner circumferential surface of the guide portion 43c, projecting toward the center of the arc of the frame 43. A guide surface 43F with an upward slope toward the front is provided on the lower front end of the upper part 43a of the frame.

[0031] In Figures 6 and 10, the upper part 43a of the frame is provided with an engagement groove 43M, a gripping portion 45, and a lower support bar engagement portion 43P in that order from the front end. The engagement groove 43M is provided facing the upper surface of the upper part 43a of the frame and opens forward. The gripping portion 45 consists of a block-shaped member.

[0032] In Figures 6 and 10, three pin insertion sections 43S are provided in the lower part 43b of the frame, aligned in the Y direction. In addition, an upper support bar engagement section 43Q is formed in the region between the two front pin insertion sections 43S and the one rear pin insertion section 43S.

[0033] In Figure 5, three cassette retention pins 33P are arranged in a single row in the Y direction on the upper surface of the cassette mounting section 33. These three cassette retention pins 33P constitute one cassette retention pin row 33L. Multiple cassette retention pin rows 33L are arranged in a single row in the X direction on the upper surface of the cassette mounting section 33.

[0034] In Figure 5, one receiving cassette retaining pin 33Q is provided coaxially with each cassette retaining pin row 33L in front of it. That is, on the upper surface of the cassette mounting section 33, multiple rows of pins are arranged in the X direction, each row consisting of three stored cassette retaining pins 33P (cassette retaining pin row 33L) and one receiving cassette retaining pin 33Q.

[0035] Figures 11 and 12 are side cross-sectional views of a part of the component mounting device 1T. As shown in Figures 2 and 12, the receiving cassette 22A is mounted on the trolley 21 with the top and bottom of the storage cassette 22B reversed, i.e., upside down. When the receiving cassette 22A is mounted on the trolley 21, as shown in Figure 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. Thus, 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) on which the receiving cassette 22A is mounted. The tape cassette 22 has a sub-mounting portion 43R composed of the upper support bar engaging portion 43Q of the upper part 43a and lower part 43b of the frame (Figures 10 and 11). By attaching the auxiliary mounting section 43R to the receiving cassette mounting section 38, the tape cassette 22 is mounted on the component mounting device 1T as a receiving cassette 22A. In this way, the receiving cassette mounting section 38 mounts the tape cassette 22 in an inverted position.

[0036] As shown in Figure 12, the storage cassette 22B is mounted on the trolley 21 by inserting three storage cassette retaining pins 33P, which constitute one cassette retaining pin row 33L, into three pin insertion parts 43S provided on the lower part 43b of the frame. In this embodiment, the cassette retaining pin row 33L (three storage cassette retaining pins 33P arranged in a row in the Y direction) forms the storage cassette mounting part 39 (storage device mounting part) on which the storage cassette 22B is mounted. The tape cassette 22 has a main mounting part 43U (mounting part) formed on the lower part 43b of the frame (Figures 10 and 12). By mounting the main mounting part 43U to the storage cassette mounting part 39, the tape cassette 22 is mounted on the component mounting device 1T as the storage cassette 22B.

[0037] In Figures 11 and 12, the receiving cassette mounting section 38 mounts the receiving cassette 22A with its front opening 41K facing the storage cassette mounting section 39. Similarly, the storage cassette mounting section 39 mounts the storage cassette 22B with its front opening 41K facing the receiving cassette 22A mounted on the receiving cassette mounting section 38. In this way, the receiving cassette 22A and the storage cassette 22B are mounted on the trolley 21 with their front openings 41K facing each other. This makes it possible to move the roll body 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 for smooth movement of the roll body RT from the storage cassette 22B to the receiving cassette 22A, while also preventing the roll body RT stored in the receiving cassette 22A from moving back 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 for smooth movement of the roll body RT from the storage cassette 22B to the receiving cassette 22A, while also preventing the roll body RT stored in the receiving cassette 22A from moving back to the storage cassette 22B.

[0040] Figures 13 and 14 are side cross-sectional views of the tape cassette 22. Figure 15 is a side view of the shutter 42 provided on the tape cassette 22. In Figures 6, 13, and 14, the shutter 42 is located within the storage space 41S of the storage unit 41. As shown in Figure 15, the shutter 42 has an overall J-shape and includes an arc-shaped slider portion 51 and a shutter tip portion 52 that extends linearly from one end of the slider portion 51. An operating lever 53 is connected to the slider portion 51, protruding outwards (away from the center) from the arc-shaped slider portion 51, and is positioned protruding to the rear of the storage unit 41.

[0041] In Figures 6, 7, and 8, a tape holding portion 54 is provided at the tip of the shutter 42 (the end of the shutter tip portion 52). The tape holding portion 54 is a plate-shaped portion that extends in the direction in which the shutter tip portion 52 extends. Two tape locking protrusions 55, which serve as feed hole engagement portions, protrude from the tip of the tape holding portion 54. These two tape locking protrusions 55 are arranged parallel to each other in a plane perpendicular to the width direction of the storage portion 41.

[0042] The shutter 42 is guided by the aforementioned arc-shaped shutter guide portion 43g, which is provided on the frame 43, and whose outer circumferential surface is that of the arc-shaped slider portion 51. 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 with an axis parallel to the X direction as the axis of rotation.

[0043] The shutter 42 takes a closed position (first position) where the shutter tip 52 extends vertically (Z direction) at the front of the storage space 41S, closing the front opening 41K of the storage unit 41 (Figure 13). It also takes an open position (second position) where the shutter tip 52 extends vertically (Y direction) at the bottom of the storage space 41S, opening the front opening 41K of the storage unit 41 (Figure 14). When the shutter 42 is in the closed position, the roll body RT inside the storage space 41S cannot pass through the front opening 41K and move out of the storage unit 41. However, when the shutter 42 is in the open position, the roll body RT inside the storage space 41S can pass through the front opening 41K and move out of the storage unit 41.

[0044] In Figures 10, 13, and 14, an open-side stopper surface 43T is formed at the front end of the lower part 43b of the frame. At the boundary between the slider portion 51 and the shutter tip portion 52 of the shutter 42, a contact surface 52T, which is the end face of the shutter tip portion 52, is formed (Figure 13). When the operating lever 53 is moved from the lower position to the upper position, the shutter 42 rotates clockwise in Figure 13 (Figure 13 → Figure 14), and when the contact surface 52T contacts the open-side stopper surface 43T, it is positioned in the closed position (Figure 14).

[0045] Figures 16A to 16F show 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 Figure 13). Figure 16G shows a cross-section of a part of the tape cassette 22 when the shutter 42 is in the open position (cross-section GG shown in Figure 14).

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

[0047] Figures 17A and 17C are side views of the tape cassette 22 showing how the roll of carrier tape CT RT is inserted into and removed from the storage cassette 22B. When storing the roll of tape RT in the tape cassette 22, the shutter 42 is positioned in the open position, the roll of tape RT is inserted through the front opening 41K of the storage section 41 (arrow M1 shown in Figure 17A), and the operating lever 53 is moved downward (arrow N1 shown in Figure 17B). This moves the shutter 42 from the open position to the closed position. Then, the front opening 41K of the storage section 41 is closed by the shutter 42, and the roll of tape RT is stored in the tape cassette 22 (Figure 17B).

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

[0049] In this embodiment, the tape cassette 22 as a storage device has a storage space 41S for storing a roll of tape RT, and a storage section 41 with a front opening 41K through which the roll of tape RT can be inserted and removed. The storage section also has a shutter 42 that displaces between a first position (closed position) that restricts the roll of tape RT stored in the storage space 41S from passing through the front opening 41K and moving outside the storage section 41 by closing at least a part of the front opening 41K, and a second position (open position) that allows the roll of tape RT stored in the storage space to pass through the front opening 41K and move outside the storage section 41. The shutter 42 has a shutter tip 52 that is located in the front opening 41K when displaced to the closed position, and a slider 51 that slides guided by a shutter guide 43g provided on the frame 43.

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

[0051] Figure 18A shows a configuration in which one of the two frame members 43Z is removed, leaving only one frame member 43Z for common use, which can accommodate cases where the width dimension of the roll body RT (i.e., the carrier tape CT) is smaller than in the aforementioned case. Figure 18B shows a configuration in which the width dimension of one of the two frame members 43Z is increased, which can accommodate cases where the width dimension of the roll body RT is larger than in the aforementioned case.

[0052] Figure 18C shows two frame members 43Z connected by a rod-shaped spacer SP, allowing for a roll body RT with a larger width dimension than in Figure 18B (see also Figure 19). The two frame members 43Z connected by the spacer SP are used in common. In both Figure 18B and Figure 18C, the gripping portion 45 is provided on each of the two frame members 43Z. This is because if the gripping portion 45 were only provided on one of the two frame members 43Z, the tape cassette 22 would tilt from a vertical position due to the position of its overall center of gravity, making it difficult to mount on the trolley 21. Furthermore, attempting to force the tape cassette 22 into a vertical position by gripping only one gripping portion 45 could cause excessive bending moment to act on the gripping portion 45, potentially damaging it.

[0053] Next, the procedure for attaching the tape cassette 22 to the parts supply unit 1B of the parts mounting device 1T will be explained. In attaching the tape cassette 22 to the parts supply unit 1B, first, the receiving cassette 22A is attached to the receiving cassette mounting unit 38 of the trolley 21, which is the receiving unit mounting unit.

[0054] When mounting the receiving cassette 22A to the receiving cassette mounting section 38, the operator first positions the shutter 42 in the open position (second position) using the operating lever 53, and then inverts the tape cassette 22. Then, the operator engages the lower support bar engaging section 43P provided on the upper part 43a of the frame with the lower support bar 35, engages the upper support bar engaging section 43Q provided on the lower part 43b of the frame with the upper support bar 37, and engages the engaging groove 43M provided on the upper part 43a of the frame with the receiving cassette holding pin 33Q (Figure 11 → Figure 12). When the receiving cassette 22A is mounted on the trolley 21, the tape cassette 22 is tilted slightly forward and downward. The guide surface 43F provided on the upper part 43a of the frame is in an almost horizontal position (Figure 12). Also, the shutter 42 of the receiving cassette 22A mounted on the trolley 21 is in the open position (second position).

[0055] Once the receiving cassette 22A is mounted on the receiving cassette mounting section 38 of the trolley 21 as described above, the storage cassette 22B containing the roll body RT is mounted on the storage cassette mounting section 39 of the trolley 21. The shutter 42 of the storage cassette 22B is in the closed position until just before the storage cassette 22B is mounted on the storage cassette mounting section 39. The tape holding section 54 of the shutter 42, in the closed position, holds the leading edge of the carrier tape CT pulled out from the roll body RT (Figure 12).

[0056] Here, the leading edge of the carrier tape CT is held by the tape holding section 54 when two tape locking protrusions 55 provided on the tape holding section 54 lock from below into two of the multiple feed holes SH provided on the leading edge of the carrier tape CT pulled out from the roll body RT (Figures 6 and 12). In this state, the leading edge of the carrier tape CT is in a nearly horizontal position.

[0057] In this embodiment, the tape holding portion 54 provided at the tip of the shutter 42 (shutter tip portion 52) has two tape locking protrusions 55 that can engage with the feed holes SH of the carrier tape CT. These tape locking protrusions 55 hold the carrier tape CT as it is pulled out from the roll RT. At this time, the leading edge of the carrier tape CT is in a horizontal position. That is, when the shutter 42 is in the closed position (first position), the tape holding portion 54 holds the carrier tape CT horizontally.

[0058] When the operator installs the storage cassette 22B into the storage cassette mounting section 39, they grasp the gripping section 45 provided on the upper part 43a of the frame 43 (if there are two gripping sections 45, they grasp both gripping sections 45), and then lift the storage cassette 22B. Then, they pinch the leading end of the carrier tape CT held in the tape holding section 54 with their fingers and insert it into the tape inlet 23G at the rear end of the tape feeder 23.

[0059] When the tape feeder 23, into which the carrier tape CT has been inserted, detects that the leading edge of the carrier tape CT has been inserted into the tape inlet 23G, it begins to retract the carrier tape CT. Once the tape feeder 23 has begun to retract 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] Figures 20A and 20B are side cross-sectional views of a part of the component mounting device 1T showing the procedure for mounting the tape cassette 22. After inserting the leading end of the carrier tape CT pulled 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. Once the front opening 41K of the storage cassette 22B is open, the storage cassette 22B is moved above the storage cassette mounting section 39 (Figure 20A). Then, the storage cassette 22B is lowered so that the three storage cassette retaining pins 33P that constitute the cassette retaining pin row 33L, which is the storage cassette mounting section 39, are inserted into the three pin insertion sections 43S provided on the lower part 43b of the frame of the storage cassette 22B, thereby mounting the storage cassette 22B to the storage cassette mounting section 39 (i.e., to the trolley 21) (Figure 20B).

[0061] When the operator installs the storage cassette 22B into the storage cassette mounting section 39, the operator ensures that the front end 43E of the lower part (lower part of the frame 43b) of the storage cassette 22B passes between the pair of protruding parts 44H of the receiving cassette 22A which is mounted in the receiving cassette mounting section 38 (Figure 20A → Figure 20B). As shown in Figure 8, the lower end of the lower part of the frame 43b has a tapered surface 43D formed thereon, which is shaped to facilitate the guidance of the lower part of the frame 43b between the pair of protruding parts 44H (a shape that narrows downwards).

[0062] When the storage cassette 22B is mounted on the storage cassette mounting section 39 in the manner described above (with the lower front end 43E passing between the pair of protruding parts 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 (Figure 20B). As a result, 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 (lateral tilting direction) is suppressed, thus stabilizing its posture on the trolley 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 section 39 mounts the storage cassette 22B with at least a portion of the front opening 41K of the storage cassette 22B inserted into the front opening 41K of the receiving cassette 22A. As a result, the side plate 44 of the storage cassette 22B is positioned inward from the side plate 44 of the receiving cassette 22A, which helps to prevent problems such as the roll body RT moving from the storage cassette 22B to the receiving cassette 22A getting caught on the edge of the side plate 44.

[0064] In this embodiment, the storage section 41 of the tape cassette 22 (storage cassette 22B) is configured to have a pin insertion section 43S which is an engaged section that can engage with the cassette holding pin row 33L (three storage cassette holding pins 33P), which is the positioning section of the trolley 21 (i.e., the component mounting device 1T). The storage cassette 22B is positioned and held by the storage cassette mounting section 39, which consists of the cassette holding pin row 33L (three storage cassette holding pins 33P). When the storage cassette 22B is held in the storage cassette mounting section 39, it is sandwiched between a pair of side plates 44 of the receiving cassette 22A located in front of it, thereby suppressing movement in the X direction (lateral tilting direction).

[0065] Figures 21A and 21B are side cross-sectional views of a part of the component mounting device 1T showing the movement of the roll body RT. Figures 22A and 22B are side cross-sectional views of a part of the component mounting device 1T showing the procedure for removing the tape cassette 22. When the tape feeder 23 pulls in the carrier tape CT during the process of mounting the storage cassette 22B into the storage cassette mounting section 39, if the pulled-in carrier tape CT is the current tape, it continues to transport the carrier tape CT to supply the component BH. If the pulled-in carrier tape CT is a replenishment tape, the tape feeder 23 keeps the replenishment tape in wait until it detects that the trailing end of the current tape has passed a predetermined position in the tape feeder 23. When the tape feeder 23 starts transporting the replenishment tape, the roll body RT stored in the storage cassette 22B is pulled forward by the carrier tape CT transported by the tape feeder 23 and rolls into the storage section 41 of the receiving cassette 22A located in front of it (Figure 21A → Figure 21B → Figure 22A).

[0066] As described above, when the roll body RT moves from the storage cassette 22B into the receiving cassette 22A, the roll body RT is guided by the guiding surface 43F of the receiving cassette 22A. Furthermore, since 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 which is located in front of it, the roll body RT moves smoothly into the receiving cassette 22A and is stored there (Figure 21B → Figure 22A).

[0067] Figures 23A and 23B are side cross-sectional views of a part of the component mounting device 1T showing the procedure for installing the tape cassette 22. Once the roll body RT that was stored in the storage cassette 22B has moved into the receiving cassette 22A, the storage cassette 22B becomes empty. The empty storage cassette 22B is removed from the trolley 21 (cassette mounting section 33) in order to mount the next roll body RT (storage cassette 22B) of replenishment tape onto the trolley 21 (Figure 22B). Then, once the supply of component BH by the tape feeder 23 has progressed, the worker installs the new tape cassette 22 into the cassette mounting section 33 in the manner described above (Figure 23A → Figure 23B).

[0068] Figures 24A and 24B are side cross-sectional views of a part of the component mounting device 1T showing the movement of the roll body RT. When the tape feeder 23 has progressed in transporting the carrier tape CT and it is detected that the rear end of the carrier tape CT of the roll body RT in the receiving cassette 22A has passed a predetermined position within the tape feeder 23, the tape feeder 23 transports the replenishment tape (carrier tape CT in the storage cassette 22B) that had been in standby mode as the new current tape (Figure 24A) and continues to supply the component BH. When the tape feeder 23 starts transporting the carrier tape CT from the roll body RT stored in the storage cassette 22B, the roll body RT of the carrier tape CT is pulled and rolls forward, entering the storage section 41 of the receiving cassette 22A mounted in front of it (Figure 24A → Figure 24B). As a result, the storage cassette 22B becomes empty, returning to the same state as in Figure 22A, and the process of Figure 22A → Figure 22B → Figure 23A → Figure 23B → Figure 24A → Figure 24B → Figure 22A is repeated. Therefore, the component loading device 1T can continue to supply components BH by the tape feeder 23 while receiving replenishment of the roll body RT (i.e., the carrier tape CT).

[0069] Incidentally, when component mounting by component mounting device 1T is completed, the receiving cassette 22A may contain carrier tape CT and its roll body RT that were not used by component mounting device 1T. The remaining roll body RT will be stored or used by component mounting device 1T to produce another mounted board. In this case, since the receiving cassette 22A is a tape cassette 22 that can be used as a storage cassette 22B, the receiving cassette 22A containing the remaining roll body RT can be removed from the receiving cassette mounting section 38 and stored as is. Also, when using it in component mounting device 1T, the removed receiving cassette 22A is used as a storage cassette 22B. In this case, since the receiving cassette 22A is used by inverting the tape cassette 22, the winding direction of the roll body RT stored in the receiving cassette 22A will be the same as the winding direction when used as a storage cassette 22B. Therefore, when using the receiving cassette 22A as a storage cassette 22B, the work of removing the roll body RT, reversing its orientation, and storing it again can be avoided.

[0070] As described above, the tape cassette 22 (storage device) in this embodiment supplies a roll 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 of tape RT, and a front opening 41K is provided at the front from which the roll of tape RT can be inserted and removed. The shutter 42 is displaceable between a closed position (first position) that restricts the roll of tape RT from passing through the front opening 41K and moving outside the storage section 41 by blocking at least a part of the front opening 41K, and an open position (second position) that allows the roll of tape RT to pass through the front opening 41K and move outside the storage section 41. The tape cassette 22 as a storage device (storage cassette 22B) is mounted on the trolley 21 with the front opening 41K of the storage section 41 facing the component mounting device 1T, and is configured to supply its roll of tape RT to the component mounting device 1T with the shutter 42 in the open position.

[0071] In the tape cassette 22 of this embodiment, when the shutter 42 is in the closed position (first position), the roll body RT stored in the storage space 41S will not fly out of the storage space 41S. On the other hand, by positioning the shutter 42 in the open position (second position), it is possible to remove the stored roll body RT from the storage space 41S. Therefore, with the tape cassette 22 of this embodiment, it is possible to reliably supply the stored roll body RT to the component mounting device 1T while suppressing the roll body RT from unexpectedly flying out.

[0072] Furthermore, the component mounting device 1T in this embodiment is configured to include a storage cassette mounting section 39 (storage device mounting section) on which a storage cassette 22B (storage device) containing a roll of carrier tape CT (refill tape) is mounted, and a receiving cassette mounting section 38 (receiving section mounting section) on which a receiving cassette 22A (receiving section) is mounted to receive the roll of tape RT supplied from the storage cassette 22B mounted on the storage cassette mounting section 39 through its front opening 41K. In other words, in the component mounting device 1T in this embodiment, the storage device (storage cassette 22B) that stores the roll of replenishment tape RT is not attached to the storage device (receiving cassette 22A) that holds the roll of current tape RT, but is attached directly to the trolley 21. For this reason, the component mounting device 1T in this embodiment can stably hold not only small rolls of tape RT but also large rolls of tape RT and perform component mounting work. In other words, the component mounting device 1T in this embodiment can easily accommodate larger rolls of tape.

[0073] As described above, the tape cassette 22 in this embodiment can prevent the stored roll RT from unexpectedly flying out.

[0074] While embodiments of the present disclosure have been described above, the present disclosure is not limited to those described above, and various modifications are possible. For example, in the above-described embodiment, the shutter 42 of the tape cassette 22 had a J-shape overall, but it does not have to 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] As a storage device that can prevent the stored roll from unexpectedly flying out, it is suitably applicable to a component supply unit used in a component mounting device that mounts components onto a substrate. [Explanation of symbols]

[0076] 1T component mounting device 13 Mounted Heads 22 Tape Cassettes 22A Receiving Cassette 22B Storage Cassette (Storage Device) 23 Tape feeder (component supply unit) 33P Storage cassette retention pin (positioning part) 38. Receiving cassette mounting section (receiving section mounting section) 39 Cassette storage unit (storage device mounting unit) 41 Storage Unit 41K Front opening (opening) 41S Storage Space 42 Shutter (regulating part) 43 frames 43g Shutter guide section (guide section) 43S Pin insertion part (engaged part) 43U Main mounting section (mounting section) 43R Sub-mounting section 44 Side plate (plate component) 51 Slider section 52 Shutter tip (tip) 53 Operating lever 54 Tape holding section 55 Tape locking projection (feed hole engagement part) CT Carrier Tape SH feed hole RT Roll CJ center axis BH parts

Claims

1. A storage device for storing rolls of carrier tape containing components and for supplying the rolls to a component mounting device, A storage section having a storage space for storing the roll body, and having an opening at the front from which the roll body can be inserted and removed, A restricting portion that displaces between a first position that restricts the roll body from passing through the opening and moving outside the storage space by blocking at least a portion of the opening, and a second position that allows the roll body to pass through the opening and move outside the storage space, Equipped with, The aforementioned component mounting device further includes a mounting portion that is attached to the storage device mounting portion, The storage device is such that when the mounting portion is attached to the storage device mounting portion, the storage device is mounted on the component mounting device with the opening facing the component mounting device, and the roll body is supplied to the component mounting device with the restricting portion positioned at the second position.

2. The storage unit stores the roll body in a vertical position where the central axis of the roll body is approximately horizontal. The storage device according to claim 1.

3. The storage section has the opening provided in front of the outer circumferential surface of the roll body, The storage device according to claim 1 or 2.

4. The restricting portion is displaced between the first position and the second position by sliding relative to the storage portion. A storage device according to any one of claims 1 to 3.

5. The storage unit comprises a U-shaped frame surrounding the storage space and a pair of plate members fixed to the frame that cover the sides of the storage space. A storage device according to any one of claims 1 to 4.

6. The restricting portion has a tip portion that is located in the opening when displaced to the first position, and a slider portion that slides guided by a guide portion provided on the frame. The storage device according to claim 5.

7. The operating lever further comprises displacing the regulating portion between the first position and the second position, The aforementioned operating lever is connected to the slider section. The storage device according to claim 6.

8. The aforementioned operating lever protrudes from the rear of the storage compartment. The storage device according to claim 7.

9. The system includes a tape holding section that holds the carrier tape pulled out from the roll body, A storage device according to any one of claims 1 to 8.

10. The tape holding portion has a feed hole engaging portion that can engage with the feed hole of the carrier tape. The storage device according to claim 9.

11. The tape holding portion is provided at the tip of the restricting portion. The storage device according to claim 10.

12. When the restricting portion is displaced to the first position, the tape holding portion holds the carrier tape horizontally. The storage device according to claim 11.

13. The storage section has an engaged portion that can engage with the positioning portion of the component mounting device. The storage device according to claim 1.

Images