Take-up drums, tape feeders, and component mounting machines

Abstract

The present invention provides a take-up drum that allows easy removal of a wound tape even when it is tightly wound, a tape feeder equipped with the take-up drum, and a component mounting machine capable of mounting the tape feeder. The take-up drum includes a tape holding member having an insertion hole for inserting a support shaft of a rotating device, which holds the wound tape; and a wound component mounted on the tape holding member. The component winds up the tape by rotating the support shaft with the support shaft mounted thereon using a rotating device, and includes a rotating member that rotates in contact with the support shaft when the wound tape is removed from the support shaft.

Description

Technical Field

[0001] The present disclosure relates to a technology of a take-up drum for taking up a tape, a tape feeder including the take-up drum, and a component mounting machine capable of mounting the tape feeder. Background Art

[0002] Various take-up drums for taking up tape have been proposed. For example, the take-up reel disclosed in Patent Document 1 below winds up the cover tape of a component supply tape used in an electronic component supply device. The component supply tape comprises a carrier tape that stores electronic components at predetermined intervals, and a cover tape adhered to the surface of the carrier tape to block the storage area for the electronic components. The take-up reel is attached to a tape take-up device that feeds electronic components one by one from the component supply tape. The tape take-up device peels the cover tape from the carrier tape and winds the peeled cover tape onto the take-up reel.

[0003] Prior art literature

[0004] Patent Document 1: Japanese Patent Application Laid-Open No. 9-2743 Summary of the Invention

[0005] Problems to be solved by the invention

[0006] When the take-up reel peels the cover tape from the carrier tape and winds it up, it applies a certain tension to the cover tape, peeling it from the carrier tape while winding it up. As a result, the cover tape can become tightly wound around the take-up reel. When the cover tape is discarded, removing the take-up reel from the tape take-up device can be difficult due to the tightness of the tape, which can be a problem.

[0007] The present disclosure has been made in view of such actual circumstances, and an object of the present disclosure is to provide a take-up drum that is easy to remove even when the wound tape is tightly wound, a tape feeder including the take-up drum, and a component mounting machine capable of mounting the tape feeder.

[0008] In order to solve the above-mentioned problems, the present invention discloses a winding drum, comprising: a belt holding component, having an insertion hole for inserting a support shaft of a rotating device, for holding the wound belt; and a wound component, which is installed on the above-mentioned belt holding component, and is used to rotate the above-mentioned support shaft by the above-mentioned rotating device when the above-mentioned support shaft is installed to wind up the above-mentioned belt, and has a rotating component that contacts and rotates with the above-mentioned support shaft when the support shaft is removed from the above-mentioned support shaft in a state where the above-mentioned belt is wound.

[0009] Furthermore, the present disclosure is extremely effective not only when implemented as a take-up drum but also when implemented as a tape feeder to which a take-up drum can be mounted and a component mounting machine to which the tape feeder can be mounted.

[0010] Effects of the Invention

[0011] According to the winding drum and tape feeder disclosed herein, the tape is wound onto the wound component by rotating the support shaft using a rotating device. The wound component is provided with a rotating component that contacts the support shaft. When the winding drum is removed from the support shaft while the tape is wound, the rotating component contacts the support shaft and rotates. Thus, even if the tape is wound tightly around the wound component, causing the wound component to be fastened to the support shaft by the tape, the rotating component can be rotated to facilitate smooth movement of the winding drum relative to the support shaft. Therefore, the winding drum can be easily removed from the support shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a plan view showing a schematic configuration of a component mounting system according to this embodiment.

[0013] Figure 2 This is a perspective view showing the schematic structure of a component mounting machine and a loader.

[0014] Figure 3 This is a perspective view showing a tape feeder.

[0015] Figure 4 This is a top view of the front end of the tape feeder.

[0016] Figure 5 It is a perspective view showing a state in which the winding drum is removed from the support member.

[0017] Figure 6 It is a plan view showing the inside of the winding drum.

[0018] Figure 7 It is a perspective view showing the inside of the winding drum.

[0019] Figure 8 This is a cross-sectional view obtained by cutting the support member and the winding drum along a plane along the axial direction.

[0020] Figure 9 The cross section is obtained by cutting the support member and the winding drum along the axial direction, and is a diagram showing a state in which the winding drum is removed.

[0021] Figure 10 It is a plan view showing the inner side of a winding drum of another example. DETAILED DESCRIPTION

[0022] Hereinafter, one embodiment of the present disclosure will be described with reference to the drawings. Figure 1 It is a plan view showing a schematic configuration of a component mounting system 10 according to the present embodiment. Figure 2 1 is a perspective view showing the schematic structure of the component mounting machine 20 and the loader 13. Figure 1The left-right direction is referred to as an X direction, the front-back direction is referred to as a Y direction, and the direction perpendicular to the X and Y directions is referred to as a Z direction (up-down direction) for description.

[0023] like Figure 1 As shown, the component mounting system 10 includes: a production line 11, a loader 13 and a management computer 15. The production line 11 has a plurality of component mounting machines 20 arranged in the X direction, and performs the mounting of electronic components on a substrate 17. The substrate 17 is, for example, Figure 1 The component mounting machine 20 on the left side shown is unloaded toward the component mounting machine 20 on the right side, and mounting of electronic components and the like are performed during the conveyance.

[0024] like Figure 2 As shown, the component mounting machine 20 includes a base 21 and a module 22. The base 21 is a roughly rectangular box-shaped structure that is elongated in the Y direction and is placed on the floor of a factory where the component mounting machine 20 is installed. The base 21 is adjusted vertically, for example, to match the position of the substrate conveyor 23 of an adjacent module 22, and is fixed to the base 21 of an adjacent component mounting machine 20. The module 22 is a device that performs, for example, mounting electronic components on the substrate 17 and is placed on the base 21. The module 22 can be pulled out toward the front of the base 21 in the front-rear direction and can be exchanged with another module 22.

[0025] The module 22 includes a substrate transport device 23, a tray 24, a head 25, and a head moving mechanism 27. The substrate transport device 23 is provided within the module 22 and transports the substrate 17 in the X direction. The substrate transport device 23 includes a conveyor belt for transporting the substrate 17 and an electromagnetic motor as a driving source for rotating the conveyor belt.

[0026] The tray 24 is provided on the front surface of the module 22 and is an L-shaped table when viewed from the side. The tray 24 has a plurality of slots (not shown) arranged in the X direction. A tape feeder 29 for supplying electronic components is installed in each slot of the tray 24. The tape feeder 29 supplies electronic components from a component supply tape that stores electronic components at a predetermined pitch, for example. Details of the tape feeder 29 will be described later. In addition, as Figure 1 As shown, a touch panel 26 for performing operation input on the component mounting machine 20 is provided on the upper cover of the module 22 . Figure 2 The diagram shows a state where the upper cover and the touch panel 26 are removed.

[0027] The head 25 has a suction nozzle 28 for sucking electronic components supplied from a tape feeder 29, and mounts the electronic components sucked by the suction nozzle 28 on the substrate 17. As a driving source for changing the positions of the multiple suction nozzles 28 and the position of each suction nozzle 28, the head 25 has, for example, an electromagnetic motor (not shown). The head moving mechanism 27 moves the head 25 to any position in the X direction and the Y direction in the upper part of the module 22. In detail, the head moving mechanism 27 has an X-axis sliding mechanism 27A for moving the head 25 along the X direction and a Y-axis sliding mechanism 27B for moving the head 25 along the Y direction. The X-axis sliding mechanism 27A is mounted on the Y-axis sliding mechanism 27B.

[0028] The Y-axis sliding mechanism 27B includes a linear motor (not shown) as a driving source. The X-axis sliding mechanism 27A moves to any position in the Y direction based on the drive of the linear motor of the Y-axis sliding mechanism 27B. Furthermore, the X-axis sliding mechanism 27A includes a linear motor (not shown) as a driving source. The head 25 is mounted on the X-axis sliding mechanism 27A and moves to any position in the X direction based on the drive of the linear motor of the X-axis sliding mechanism 27A. Therefore, the head 25 moves to any position in the upper portion of the module 22 as the X-axis sliding mechanism 27A and the Y-axis sliding mechanism 27B are driven.

[0029] In addition, a marking camera (not shown) for photographing the substrate 17 is provided on the head 25. In addition, a parts camera 30 (see FIG. 1 ) is provided between the tray 24 and the substrate conveyor 23 in the front-back direction in the module 22. Figure 2 The parts camera 30 is disposed in an upward direction and captures an image of the electronic component held by the suction nozzle 28 .

[0030] In addition, if Figure 2 As shown, an upper guide rail 31, a lower guide rail 33, a rack 35, and a contactless power supply coil 37 are provided on the front surface of the base 21. The upper guide rail 31 is a U-shaped cross-section guide rail extending in the X-direction, with its opening facing downward. The lower guide rail 33 is an L-shaped cross-section guide rail extending in the X-direction. Its vertical surface is attached to the front surface of the base 21, and its horizontal surface extends forward. The rack 35 is provided below the lower guide rail 33 and extends in the X-direction. It is a gear with multiple longitudinal grooves engraved on its front surface. The upper guide rail 31, lower guide rail 33, and rack 35 of the base 21 can be detachably connected to the upper guide rail 31, lower guide rail 33, and rack 35 of an adjacent base 21. Therefore, the number of component mounters 20 arranged side by side on the production line 11 can be increased or decreased. The non-contact power supply coil 37 is provided on the upper portion of the upper guide rail 31 , is a coil arranged along the X direction, and supplies electric power to the loader 13 .

[0031] The loader 13 is a device that automatically replenishes and retrieves the tape feeder 29 from the component mounting machine 20. It has a gripper (not shown) that clamps the tape feeder 29. The loader 13 is equipped with an upper roller (not shown) inserted into the upper guide rail 31 and a lower roller (not shown) inserted into the lower guide rail 33. The loader 13 also has a motor as a drive source. A gear that meshes with a rack 35 is mounted on the motor's output shaft. The loader 13 has a power receiving coil that receives power from the contactless power supply coil 37 of the component mounting machine 20. The loader 13 supplies power received from the contactless power supply coil 37 to the motor. Thus, the loader 13 can move in the X direction (left-right direction) by rotating the gears using the motor. Furthermore, the loader 13 can rotate the rollers within the upper guide rail 31 and lower guide rail 33, moving in the X direction while maintaining its position in the vertical and front-back directions.

[0032] Figure 1 The management computer 15 shown is a device that centrally manages the component mounting system 10. For example, the management computer 15 is connected to each component mounting machine 20 on the production line 11 via a wired LAN or wireless LAN. Based on the management of the management computer 15, the component mounting machine 20 begins mounting electronic components. The component mounting machine 20 conveys a substrate 17 and performs electronic component mounting operations using a head 25. Furthermore, the management computer 15 monitors the number of remaining electronic components in the tape feeder 29. For example, if the management computer 15 determines that the tape feeder 29 needs to be replenished, it displays an instruction on the screen to install the tape feeder 29 containing the required component types on the loader 13. The user confirms the display and installs the tape feeder 29 on the loader 13. Upon detecting that the desired tape feeder 29 has been installed on the loader 13, the management computer 15 instructs the loader 13 to start the replenishment operation. The loader 13 moves in front of the component mounting machine 20 that has received the instruction, and uses its gripping section to grip the tape feeder 29 installed by the user and install it in the slot of the tray 24. This replenishes the component mounting machine 20 with a new tape feeder 29. Furthermore, the loader 13 uses its gripping section to grip a tape feeder 29 that has run out of components, pulls it out of the tray 24, and retrieves it. In this way, the loader 13 can automatically replenish new tape feeders 29 and retrieve depleted tape feeders 29.

[0033] Next, the details of the tape feeder 29 will be described. Figure 3 2 is a perspective view showing the tape feeder 29. Figure 3As shown, the tape feeder 29 includes a tape reel 41, a delivery device 43, a peeling device 45, and a take-up drum 47. The tape feeder 29 supplies electronic components at the end of its upper surface. Specifically, a component supply tape 51 is wound around the tape reel 41. The component supply tape 51 is pulled from the tape reel 41 along a conveying direction 53 onto a tape guide 54.

[0034] Figure 4 Indicates the front end portion of the tape feeder 29 in the conveying direction 53. Figure 4 As shown, component supply tape 51 includes a carrier tape 59 and a cover tape 63 attached to carrier tape 59. Component storage portions 55 are formed on carrier tape 59 at predetermined intervals along conveyance direction 53. Electronic components 61 are stored in component storage portions 55. Cover tape 63 is attached to the top surface of carrier tape 59. Component storage portions 55 are formed as recessed portions with an upper opening, and the upper opening is closed by cover tape 63. Therefore, component supply tape 51 is a tape made by weaving electronic components.

[0035] Feed holes 57 are formed on the carrier tape 59 at predetermined intervals (equal intervals) along the conveying direction 53. Figure 3 As shown, the feeding device 43 includes a sprocket 65 having a generally circular plate shape and an electromagnetic motor 67 serving as a driving source. Protrusions 65A are formed on the outer periphery of the sprocket 65 at predetermined intervals in the circumferential direction. The protrusions 65A of the sprocket 65 engage with the feed holes 57 of the component supply tape 51. The output shaft of the electromagnetic motor 67 is connected to the sprocket 65 via a gear or the like. Therefore, the sprocket 65 rotates based on the drive of the electromagnetic motor 67, feeding the component supply tape 51 in a state where the cover tape 63 is attached to the carrier tape 59. The sprocket 65 feeds the component supply tape 51 along the conveying direction 53 at the upper end surface of the tape feeder 29.

[0036] like Figure 3 and Figure 4 As shown, the peeling device 45 includes a frame 69 and a gear mechanism 71. The frame 69 is provided at the front end portion of the upper surface of the tape feeder 29. The frame 69 is formed into a thin plate shape that extends along the conveying direction 53 to match the shape of the component supply tape 51. The frame 69 has an opening 69A formed in the upper portion of the front end in the conveying direction 53, corresponding to the supply position of the electronic components 61.

[0037] The take-up drum 47 is arranged above the tape reel 41 and further back (upstream) than the sprocket 65 in the conveying direction 53. The take-up drum 47 rotates to take up the cover tape 63. The details will be described later. The take-up drum 47 is mounted on a support member 111 (see FIG. 1 ) provided on the tape feeder 29. Figure 5). In addition, an electromagnetic motor 112 is provided on the tape feeder 29 as a driving source for rotating the support member 111. The output shaft of the electromagnetic motor 112 is connected to the support member 111 via gears, etc. The support member 111 rotates based on the drive of the electromagnetic motor 112. As a result, the take-up roller 47 rotates along with the rotation of the support member 111 to take up the cover tape 63. In addition, a door portion 29A that can be opened and closed corresponding to the installation position of the take-up roller 47 is formed on the tape feeder 29. By opening and closing the door portion 29A, the user can install the take-up roller 47 on the support member 111 and remove the take-up roller 47 after taking up the cover tape 63. In addition, the electromagnetic motor 112 that rotates the support member 111 (take-up roller 47) and the electromagnetic motor 67 that rotates the sprocket 65 can also be the same (used in common) electromagnetic motor. That is, the take-up roller 47 can also be rotated by the electromagnetic motor 67 that rotates the sprocket 65. In this case, the tape feeder 29 does not need to include a dedicated drive source (electromagnetic motor 112) for rotating the support member 111. Furthermore, the method for rotating the take-up drum 47 is not limited to rotating the support member 111 using the electromagnetic motor 112. For example, the take-up drum 47 may be rotated by applying a force in the rotational direction (winding direction) to the take-up drum 47 using a spring or the like. Alternatively, the take-up drum 47 may be driven to rotate by rotating the gear mechanism 71 (described later).

[0038] The gear mechanism 71 is arranged between the take-up roller 47 and the frame 69, and feeds (pulls) the cover tape 63 from the frame 69 to the take-up roller 47. The cover tape 63 is pulled from the carrier tape 59 by the take-up roller 47 so that the front end side engages with a part of the opening 69A of the frame 69. In other words, when the take-up roller 47 takes up the cover tape 63 from the carrier tape 59, it applies a certain tension to the cover tape 63 to take it up. The electronic components 61 stored in the component storage portion 55 are exposed at the opening 69A (the upper surface is open) corresponding to the feeding of the component supply tape 51. With such a structure, the component supply tape 51 supplies the electronic components 61 at the opening 69A. The head 25 uses the suction nozzle 28 (refer to Figure 2 ) The electronic component 61 is sucked from the component storage portion 55 opened at the opening 69A. That is, the position where the opening 69A is exposed becomes the position where the tape feeder 29 supplies electronic components.

[0039] In addition, if Figure 4 As shown, the frame 69 has a plurality of claws 69B at the front end side of the opening 69A, which are arranged on the upper part of the carrier tape 59 after the cover tape 63 is peeled off. The plurality of claws 69B are arranged above the feed hole 57 side of the carrier tape 59, and are engaged when the carrier tape 59 moves upward to restrict the upward movement of the carrier tape 59. Figure 3As shown, a tape guide path 73 is formed downwardly on the side surface of the tape feeder 29 on the downstream (front end) side in the conveying direction 53. The carrier tape 59 with the electronic components 61 adsorbed thereon is discharged through the tape guide path 73, cut by a cutter provided in the tray 24, and collected in a dust box.

[0040] Next, the details of the take-up drum 47 will be described. Figures 5 to 8 As shown in FIG. 1 , the take-up drum 47 has a tape holding member 81 and a core 83. In addition, a support member 111 for mounting and supporting the take-up drum 47 is provided at the mounting position of the take-up drum 47 in the tape feeder 29. In the following description, Figure 8 As shown, the description will be made using the axial direction of the support member 111 .

[0041] The belt holding member 81 of the winding drum 47 is formed in the shape of a thin circular plate. An insertion hole 81A for inserting the support member 111 is formed in the center of the belt holding member 81. The cross section of the insertion hole 81A is formed in a circular shape, and is formed in a manner that penetrates the plate-shaped belt holding member 81 in the axial direction. A core 83 is provided in the central part of the belt holding member 81 in a manner that surrounds the insertion hole 81A. In addition, the shape of the belt holding member 81 is not particularly limited as long as it can hold the cover tape 63 wound on the core 83. For example, the belt holding member 81 may be in the shape of an elliptical or polygonal plate, or may be composed of a plurality of plates or rods extending in the radial direction from the center of rotation (a shape other than a plate).

[0042] The core 83 is wound around the cover tape 63. When the take-up drum 47 is viewed from above, the core 83 is formed into a roughly cylindrical (cylindrical) shape surrounding the insertion hole 81A. The core 83 includes a plurality of (three in this embodiment) wound components 84. In other words, the core 83 is divided into three wound components 84. The three cores 83 have the same shape and structure. In addition, the three wound components 84 may also have different structures (such as a structure without the rotating component 101 described later).

[0043] The wound member 84 is substantially fan-shaped and has a predetermined thickness in the axial direction when viewed from above the winding drum 47. The three wound members 84 are arranged at equal intervals with gaps 86 provided therebetween in the direction in which the cover tape 63 is wound on the winding drum 47, i.e., in the rotational direction 85 of the winding drum 47. Figure 6 The outer peripheral surface 84A on the outer side in the radial direction 87 indicated by the middle arrow (see Figure 7) is formed by a surface curved along the circumferential direction 85. The radial direction 87 is, for example, the radial direction of the disk-shaped tape holding member 81. The cover tape 63 is wound around the outer circumferential surface 84A of the wound member 84 and is stacked in the radial direction 87. When the take-up drum 47 takes up the cover tape 63 from the carrier tape 59, it takes up the cover tape 63 while applying a certain tension to the cover tape 63. Therefore, the wound cover tape 63 applies a force to tighten the wound member 84 (core 83) toward the inside in the radial direction 87.

[0044] An extension member 89 (see FIG. 1 ) is attached to one of the three wound members 84. Figure 7 The extension member 89 is a member for attaching the front end of the cover tape 63 to the take-up drum 47. The wound member 84 is divided into two parts in the axial direction, and the two divided parts are fixed to each other by screws 91. By removing the screws 91, the front end of the extension member 89 can be attached to the inside of the wound member 84. The wound member 84 is rotated by the support member 111, thereby winding the cover tape 63 attached to the extension member 89 onto the outer peripheral surface 84A.

[0045] The wound member 84 is attached to the belt holding member 81 via a fitting 93. The fitting 93 is inserted into a slide groove 95 (see FIG. 1 ) formed in the belt holding member 81. Figure 8 ), the wound member 84 is held so as to be able to slide in the slide groove 95. In addition, the wound member 84 is formed with a restriction protrusion 97 (see Figure 5 The limiting protrusion 97 protrudes in the axial direction and is inserted into the sliding groove 99 formed in the belt holding member 81. As a result, the three wound members 84 are each held in the belt holding member 81 by the fitting 93 and the limiting protrusion 97 and can slide along the radial direction 87.

[0046] In addition, a rotating member 101 is mounted on each of the three wound members 84. The rotating member 101 is a metal member, for example, and is housed in the housing portion 84B of the wound member 84. The rotating member 101 can rotate in a direction perpendicular to the axial direction ( Figure 8 The rotating member 101 is provided, for example, in the circumferential direction 85 in the central portion of the fan-shaped wound member 84 and in the inner end portion in the radial direction 87 within the housing portion 84B.

[0047] The rotating member 101 is, for example, Figure 8 In the mounted state shown, the support member 111 is formed into a plate having a predetermined thickness in the axial direction of the support member 111, and has a pair of flat surfaces 103 facing each other in the thickness direction. In addition, the support member 111 has a pair of curved surfaces 107 facing each other in a direction perpendicular to the thickness direction in which the flat surfaces 103 face each other. The curved ends of the curved surface 107 are connected to the pair of flat surfaces 103, respectively. Figure 8As shown, in the state where the winding drum 47 is mounted on the support member 111, the cross section obtained by cutting the rotating member 101 along the axial plane becomes a cross section in which a pair of flat surfaces 103 face each other in the axial direction and the cross section is perpendicular to the axial direction ( Figure 8 In other words, assuming a sphere formed with a predetermined curvature along the curved surface 107, the cross-sectional shape of the rotating member 101 is such that the rotating member 101 is perpendicular to the axial direction ( Figure 8 The shape is formed by cutting the ball with a flat surface 103 (in the vertical direction). Figures 5 to 8 The shape of the rotating member 101 shown is an example.

[0048] On the other hand, the support member 111 includes a base member 113, a support shaft 115, and a metal plate 117. Figure 5 The metal plate 117 is omitted from the illustration. The base member 113 is formed at the base end of the support shaft 115 in the axial direction and supports the base end of the support shaft 115 at a predetermined position. The base member 113 is based on the electromagnetic motor 112 (see Figure 3 ) and rotates integrally with the support shaft 115 and the metal plate 117.

[0049] The support shaft 115 is a columnar member extending in the axial direction, and its base end portion is fixed to the base member 113. The support shaft 115 is in the shape of a substantially triangular prism surrounded by three outer peripheral surfaces 115A formed of planes (see FIG. Figure 5 and Figure 6 When the take-up drum 47 is attached to the support member 111 , the support shaft 115 is inserted into the insertion hole 81A of the belt holding member 81 .

[0050] In addition, a magnet 109 is provided on the inner side (base end side) of each of the three wound parts 84 in the axial direction. The magnet 109 is provided, for example, on the outer side of the radial direction 87 of the central portion of the fan-shaped wound part 84 in the circumferential direction 85. Therefore, the magnet 109 is provided at a position moved from the rotating part 101 to the outer side in the radial direction 87. In addition, the metal plate 117 is, for example, a circular plate-shaped metal (iron, etc.) plate surrounding the base part 113. The metal plate 117 is, for example, a circular plate having the same radius as the radius of the belt retaining part 81. As shown in FIG. Figure 8 As shown, when the winding drum 47 is attached to the support shaft 115, the magnet 109 is attracted to the metal plate 117 by magnetic attraction. Thus, the rotational position of the winding drum 47 relative to the support member 111 in the circumferential direction 85 is maintained.

[0051] In addition, a protrusion 113A is formed at the base end of the outer peripheral surface 115A of the base member 113. The protrusion 113A protrudes from the base member 113 toward the front end side in the axial direction, and contacts the rotating member 101 when the winding drum 47 is installed. In other words, the protrusion 113A is formed at a position that contacts the rotating member 101 in the circumferential direction 85 when the winding drum 47 is installed. The protrusion 113A contacts the flat surface 103 (the flat surface 103 on the base end side) of the rotating member 101 in the axial direction, so that the rotating member 101 rotates to Figure 8 Therefore, the protrusion 113A rotates the rotating member 101 to the predetermined installation position ( Figure 8 status).

[0052] Next, the operation of attaching the take-up drum 47 to the support member 111 will be described. First, when the take-up drum 47 is removed from the support member 111 and the cover tape 63 is not wound around it, the wound member 84 can freely move in the radial direction 87. The wound member 84 can move to any position depending on its rotational position, its own weight, the weight of the extension member 89, and the like.

[0053] Next, when the take-up drum 47 is mounted on the support member 111, the support shaft 115 is inserted into the insertion hole 81A, and the take-up drum 47 is moved axially from the distal end side to the proximal end side. At this time, the support shaft 115 is inserted into the take-up drum 47 (see FIG. 1 ) with the outer peripheral surfaces 115A of the support shaft 115 arranged (adjusted) at positions facing the rotating member 101 in the circumferential direction 85. Figure 6 In this embodiment, when the wound member 84 is slidably moved to the outermost side in the radial direction 87, a gap 119 is formed between the rotating member 101 and the outer peripheral surface 115A in the radial direction 87 (see Figure 6 ) is set so that the sliding range of the wound member 84 is adjusted. Specifically, the positions and lengths of the slide grooves 95 and 99 are set so that a gap 119 is formed between the rotating member 101 and the support shaft 115 when the winding drum 47 is mounted. Thus, when the winding drum 47 is mounted on the support member 111, a gap 119 can be provided between the wound member 84 and the outer peripheral surface 115A, making it easier to mount the winding drum 47 on the support shaft 115. Alternatively, the sliding range of the wound member 84 can be adjusted so that no gap 119 is formed between the outer peripheral surface 115A and the wound member 84.

[0054] When the support shaft 115 is inserted into the insertion hole 81A and the winding drum 47 is moved in the axial direction, the rotating member 101 contacts the protrusion 113A. The rotating member 101 rotates from a state tilted to an arbitrary rotation position to a state where the flat surface 103 on the base end side contacts the protrusion 113A (so that the rotating member 101 is tilted to an arbitrary rotation position). Figure 8 The flat surface 103 is shown in a rotational position along the up-down direction).

[0055] Therefore, when the take-up drum 47 is mounted on the support shaft 115, the base member 113 of this embodiment contacts the rotating member 101, causing the rotating member 101 to rotate to the predetermined mounting position. This prevents the rotating member 101 from shifting in its mounting position (rotational position) each time it is mounted, and allows the rotating member 101 to be positioned at the predetermined mounting position with high precision.

[0056] In addition, if Figure 8 As shown, for example, the rotating member 101 brings the curved surface 107 on the outside in the radial direction 87 into contact with the inner wall of the storage portion 84B (the inner wall on the inside in the radial direction 87). The wound member 84 is pressed against the inner wall by the curved surface 107, and moves outward in the radial direction 87 as the rotating member 101 rotates. As described above, when installing the take-up drum 47, the gap 119 is formed between the rotating member 101 and the outer peripheral surface 115A, making installation easier. Furthermore, as will be described later, this gap 119 is not formed by the wound member 84 being pressed inward in the radial direction 87 by the wound cover tape 63. Therefore, since the gap 119 is formed in the initial installation state when the cover tape 63 is not wound, there is a possibility that the rotational force of the support member 111 may not be efficiently transmitted to the take-up drum 47.

[0057] In this embodiment, each of the three wound members 84 is provided with a magnet 109. The take-up drum 47 maintains its rotational position (relative position) relative to the support member 111 in the circumferential direction 85 by the magnetic attraction between the magnet 109 and the metal plate 117. Thus, even in a state where the winding tension is low enough to form the gap 119, the rotational force of the support member 111 can be efficiently transmitted to the take-up drum 47 via the magnet 109 and the metal plate 117.

[0058] Therefore, the support member 111 of this embodiment includes a metal plate 117. The winding drum 47 includes a magnet 109 that, when mounted on the support shaft 115, generates a magnetic attraction force between the metal plate 117 and the winding drum 47, thereby maintaining the rotational position of the winding drum 47 relative to the support shaft 115. Consequently, even when the cover tape 63 is not being wound and is not being secured to the wound member 84, the magnet 109 can suppress any displacement of the rotational position of the winding drum 47 relative to the support shaft 115. Therefore, even when the gap 119 is provided between the wound member 84 and the support shaft 115 when the winding drum 47 is mounted on the support shaft 115, the magnet 109 can maintain the rotational position. In other words, the gap 119 can be provided between the wound member 84 and the support shaft 115, making it easier to mount the winding drum 47 on the support shaft 115.

[0059] When the electronic component 61 (refer to Figure 4 ) When the supply operation is performed, the take-up drum 47 rotates along with the rotation of the support member 111, and takes up the cover tape 63 from the carrier tape 59. The cover tape 63 is taken up while being wound with a certain tension applied thereto, and thereby the wound member 84 is tightened inwardly in the radial direction 87 by the wound carrier tape 59. The gap 119 is no longer formed, and the rotating member 101 brings the curved surface 107 into contact (presses) with the outer peripheral surface 115A of the support shaft 115. The wound member 84 is tightened by the cover tape 63 from the outside in the radial direction 87, and the rotating member 101 is brought into contact with the support shaft 115 from the inside in the radial direction 87, thereby being fixed at a predetermined sliding position in the radial direction 87.

[0060] As described above, the support shaft 115 of this embodiment is a prism having an outer peripheral surface 115A that contacts the rotating member 101 provided on each of the plurality of wound members 84. Thus, the rotational force of the support shaft 115 can be efficiently transmitted to the winding drum 47 via the outer peripheral surface 115A.

[0061] Next, the operation of removing the winding drum 47 from the support member 111 will be described. Figure 8 In the state shown, the cover tape 63 is wound on the outer peripheral surface 84A of the wound member 84 in a superposed manner in the radial direction 87 (see FIG. Figure 9 ). When the winding drum 47 is moved toward the front end side in the axial direction in this state, the rotating member 101 makes the curved surface 107 contact the outer peripheral surface 115A due to the tightening force of the cover tape 63, and thus rotates while making the curved surface 107 contact the outer peripheral surface 115A. Figure 9 As shown by the arrow in FIG. , the rotating component 101 is rotated along the Figure 9 Thus, even when the wound cover tape 63 is wound tightly, the winding drum 47 can be smoothly moved relative to the support shaft 115 by rotating the rotating member 101 while the curved surface 107 contacts the outer peripheral surface 115A, making it easy to remove the winding drum 47.

[0062] The rotating member 101 is tilted by the rotation, and rotates from a state where the curved surface 107 is in contact with the outer peripheral surface 115A to a state where the flat surface 103 is facing the outer peripheral surface 115A. Figure 9 As shown, the rotating member 101 is formed so that one of the two flat surfaces 103 faces the outer peripheral surface 115A (facing the outer peripheral surface 115A). Figure 9The curved surface 107 on the outside in the radial direction 87 is separated from the inner wall of the wound member 84 on the inside in the radial direction 87. The wound member 84 moves inward in the radial direction 87 as the rotating member 101 rotates (see Figure 9 The rotating member 101 can be, for example, Figure 8 The rotation position shown to Figure 9 The rotation range is limited by the method of rotating within the predetermined range of the rotation position shown. In addition, the rotating member 101 can also be a structure that can rotate freely 360 degrees. In addition, Figure 9 The rotational position of the rotating member 101 shown is an example. For example, the rotating member 101 can be rotated until the outer peripheral surface 115A and the flat surface 103 are parallel to each other (facing each other with a gap therebetween) or until the outer peripheral surface 115A and the flat surface 103 are in surface contact.

[0063] Therefore, the wound member 84 of this embodiment overlaps and winds up the cover tape 63 in the radial direction 87 as the support shaft 115 rotates. The wound member 84 is configured to be movable in the radial direction 87, which is the direction toward the rotation center of the tape holding member 81. It is moved inward in the radial direction 87 by an external force applied by the cover tape 63 in accordance with the rotational position of the rotating member 101. Thus, by moving the wound member 84 inward in the radial direction 87, the shaft diameter (radius) of the wound member 84 (core 83) can be shortened. This can alleviate the tightening of the cover tape 63 around the wound member 84. Therefore, the take-up drum 47 can be easily removed from the support shaft 115.

[0064] In addition, the wound members 84 are provided with predetermined intervals 86 in the circumferential direction 85 in the direction of winding the cover tape 63 (see FIG. Figure 6 ) are arranged in a plurality (three in the present embodiment). As a result, the plurality of wound components 84 can be moved inward in the radial direction 87 in conjunction with the rotation position of the rotating component 101 (simultaneously). The axial diameter of the core 83 can be uniformly and significantly shortened, and the tightening of the cover tape 63 on the wound components 84 can be effectively alleviated. In particular, the three wound components 84 of the present embodiment are arranged at the same rotation angle (every 120 degrees) in the circumferential direction 85. Therefore, the axial diameter of the core 83 can be shortened more uniformly (suppressing deviation in the circumferential direction 85).

[0065] The rotating member 101 also includes a curved surface 107 that contacts the support shaft 115, and a flat surface 103 that is formed so as to be connected to the curved surface 107 and is disposed away from the support shaft 115 with the curved surface 107 in contact with the support shaft 115. When the rotating member 101 is removed from the support shaft 115, the curved surface 107 is in contact with the support shaft 115 while the rotating member 101 rotates, with the flat surface 103 facing the support shaft 115.

[0066] Thus, the rotating member 101 causes the curved surface 107 to contact the support shaft 115, while the flat surface 103 is separated from the support shaft 115 (see Figure 8 Furthermore, when removing the wound member 84 from the support shaft 115, the rotating member 101 rotates while bringing the curved surface 107 into contact with the support shaft 115, so that the flat surface 103 faces the support shaft 115. Thus, when the rotating member 101 rotates to a predetermined rotational position, a gap is formed between the flat surface 103 and the support shaft 115, that is, between the rotating member 101 and the support shaft 115. This can alleviate the tightening of the cover tape 63 around the wound member 84, making it easier to remove the take-up drum 47 from the support shaft 115.

[0067] The tape feeder 29 of this embodiment also includes a support shaft 115 on which the take-up drum 47 is mounted, and a support member 111 having a base member 113 that supports the support shaft 115. With this structure, the tape feeder 29 in which the take-up drum 47 is supported by the support member 111 can easily remove the take-up drum 47.

[0068] Incidentally, in the above embodiment, the tray 24 is an example of a feeder mounting device. The head 25 is an example of a mounting head. The cover tape 63 is an example of a tape. The support member 111 and the electromagnetic motor 112 are examples of a rotating device.

[0069] As described above, according to the present embodiment described above, the following effects are achieved.

[0070] In one aspect of this embodiment, the wound member 84 of the take-up drum 47 includes a rotating member 101. When the take-up drum 47 is removed from the support shaft 115 with the cover tape 63 wound on it, the rotating member 101 rotates by bringing its curved surface 107 into contact with the support shaft 115. The take-up drum 47 is mounted on the support shaft 115 with the support shaft 115 inserted into the insertion hole 81A of the tape holding member 81. The take-up drum 47 rotates the support shaft 115 via the electromagnetic motor 112, thereby winding the cover tape 63 onto the wound member 84. Furthermore, when the take-up drum 47 is removed from the support shaft 115, the rotating member 101 rotates by contacting the outer peripheral surface 115A. This allows the take-up drum 47 to move smoothly relative to the support shaft 115 even when the cover tape 63 is wound tightly around the wound member 84, causing the wound member 84 to be secured to the support shaft 115 by the cover tape 63. Therefore, the winding drum 47 can be easily removed from the support shaft 115 .

[0071] In addition, the contents of the present disclosure are not limited to the above-described embodiment, and can be implemented in various forms with various changes and improvements made based on the knowledge of those skilled in the art.

[0072] For example, the tape feeder 29 may include a driving source (spring or the like) other than the electromagnetic motors 67 and 112 .

[0073] In addition, the shape of the support shaft 115 is not limited to a triangular prism, and may also be a polygonal prism with four or more prisms. Figure 10 As shown, the support shaft 115 may be a hexagonal prism having an outer peripheral surface 115A in contact with the rotating member 101. The support shaft 115 is not limited to a polygonal prism, and may be a cylinder or the like.

[0074] In addition, the wound member 84 having the rotating member 101 may be one.

[0075] In addition, the wound member 84 may be configured not to slide in the radial direction 87. In this case, the winding drum 47 can be relatively easily detached from the supporting member 111 by rotating the rotating member 101.

[0076] Alternatively, the core portion 83 may be a single cylindrical member that is not divided into a plurality of wound members 84 .

[0077] The shape of the rotating member 101 is not particularly limited. For example, the rotating member 101 may be a simple sphere, a structure having a plurality of curved surfaces 107 with different curvatures, or a rectangular parallelepiped surrounded by flat surfaces 103 .

[0078] In addition, the wound member 84 does not need to include the magnet 109 . In addition, the supporting member 111 does not need to include the metal plate 117 .

[0079] The tape feeder equipped with the winding drum of the present disclosure is not limited to the cassette-type tape feeder 29 automatically replaced by the loader 13 as in the above embodiment. For example, the winding drum of the present disclosure can also be installed in a tape feeder that is manually unlocked and replaced.

[0080] Furthermore, the winding drum of the present disclosure is not limited to the winding drum 47 for winding the cover tape 63 of the component supply tape 51 storing electronic components 61, but can also be applied to winding drums for winding other tapes.

[0081] Description of Reference Numerals

[0082] 10. Component mounting system; 20. Component mounting machine; 24. Pallet (feeder mounting device); 25. Head (mounting head); 29. Tape feeder; 47. Winding roller; 63. Cover tape (tape); 112. Electromagnetic motor (rotating device); 84. Winding member; 86. Spacing; 87. Radial direction; 81. Tape holding member; 81A. Insertion hole; 86. Spacing; 101. Rotating member; 103. Flat surface; 107. Curved surface; 111. Support member (rotating device); 112. Electromagnetic motor (rotating device); 113. Base member; 115. Support shaft; 115A. Outer peripheral surface; 117. Metal plate.

Claims

1. A take-up drum comprising: a belt holding member having an insertion hole into which the support shaft of the rotating device is inserted, and holding the wound belt; and The wound component is installed on the belt holding component, and uses the rotating device to rotate the support shaft to wind up the belt when the support shaft is installed, and has a rotating component that contacts the support shaft and rotates in a direction with the circumferential direction as the axis when the support shaft is removed from the support shaft in a state where the belt is wound.

2. The take-up drum according to claim 1, wherein: The wound member is configured to be movable in a radial direction, which is a direction toward the rotation center of the belt holding member, and is moved inward in the radial direction by an external force applied from the belt in accordance with a rotational position of the rotating member.

3. The take-up drum according to claim 2, wherein: A plurality of the wound members are arranged at predetermined intervals in the circumferential direction, which is the direction in which the tape is wound.

4. A take-up drum comprising: a belt holding member having an insertion hole into which the support shaft of the rotating device is inserted, and holding the wound belt; and The wound member is mounted on the belt holding member, and when the support shaft is mounted thereon, the support shaft is rotated by the rotating device to wind up the belt, and the wound member has a rotating member that contacts and rotates with the support shaft when the support shaft is removed from the support shaft in a state where the belt is wound up. The rotating component includes: a curved surface that contacts the support shaft; and a flat surface that is formed in connection with the curved surface, and is configured to be separated from the support shaft in a state where the curved surface is in contact with the support shaft. When the wound component is removed from the support shaft, the rotating component rotates while contacting the curved surface with the support shaft, so that the flat surface faces the support shaft.

5. The take-up drum according to claim 4, wherein: The wound member is configured to be movable in a radial direction, which is a direction toward the rotation center of the belt holding member, and is moved inward in the radial direction by an external force applied from the belt in accordance with a rotational position of the rotating member.

6. The take-up drum according to claim 5, wherein: A plurality of the wound members are arranged at predetermined intervals in the circumferential direction, which is the direction in which the tape is wound. 7 . A tape feeder comprising: the support shaft to which the take-up drum according to claim 1 is mounted; and the rotating device having a base member that supports the support shaft.

8. The tape feeder according to claim 7, wherein When the winding drum is mounted on the support shaft, the base member comes into contact with the rotating member to rotate the rotating member to a predetermined mounting position.

9. The tape feeder according to claim 7, wherein The wound member is provided with a plurality of members in the direction of winding the belt, that is, in the circumferential direction. The support shaft is a rectangular column having an outer peripheral surface that contacts the rotating member of each of the plurality of wound members in a flat surface.

10. The tape feeder according to claim 8, wherein The wound member is provided with a plurality of members in the direction of winding the belt, that is, in the circumferential direction. The support shaft is a rectangular column having an outer peripheral surface that contacts the rotating member of each of the plurality of wound members in a flat surface.

11. The tape feeder according to claim 7, wherein The rotating device has a metal plate, The winding drum has a magnet, and when the winding drum is mounted on the support shaft, a magnetic attraction force is generated between the magnet and the metal plate, thereby maintaining a rotational position of the winding drum relative to the support shaft.

12. The tape feeder according to any one of claims 8 to 10, wherein The rotating device has a metal plate, The winding drum has a magnet, and when the winding drum is mounted on the support shaft, a magnetic attraction force is generated between the magnet and the metal plate, thereby maintaining a rotational position of the winding drum relative to the support shaft.

13. A component mounting machine comprising: A feeder mounting device capable of attaching and detaching the tape feeder according to any one of claims 7 to 12; and Mounting head, The belt is a component supply belt that stores electronic components at predetermined intervals. The mounting head mounts the electronic components supplied from the tape feeder.

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