Reel storage device and component mounting system

Abstract

To provide a reel storage device and a component mounting system, capable of improving reading accuracy of reel identification information.SOLUTION: A reel storage device includes: a storage section 32 which stores components therein and in which a plurality of reels RL each having an identifier on a side face thereof is stored while being lined up in one direction; and a reading unit 38 provided in the storage section 32 and reading identification information from an identifier MK of each reel RL that moves in an arrangement direction of the plurality of reels RL to be stored in the storage section 32. The reading unit 38 includes: an undulation arm 42 moving one reel RL trying to read identification information from the identifier MK such that the one reel projects from other reel RL arrangements; and a reading sensor 44 reading identification information from an identifier MK of the one reel RL that is moved to protrude from the other reel RL arrangements by the undulation arm 42.SELECTED DRAWING: Figure 8

Description

Technical Field

[0001] The present invention relates to a reel storage device for storing a reel containing components and a component mounting system for manufacturing a mounted substrate by mounting components on a substrate.

Background Art

[0002] Conventionally, a component mounting device that manufactures a mounted substrate by picking up components with a mounting head and mounting them on a substrate, and a component mounting system including a replenishing unit that replenishes components to a component supply unit of the component mounting device are known (for example, see Patent Document 1 below). In this component mounting system, a reel around which a carrier tape containing components is wound is stored in a cassette, and the identification information of the reel is recorded in an identifier (RFID) attached to the cassette. When the reel is replenished to the replenishing unit, the identification information is acquired from the identifier attached to the cassette during the movement process of the reel at the time of replenishment, and the consistency between the reel and the production data is confirmed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the above conventional configuration, since the identification information of the reel is read during the movement process of the reel (cassette), there is a problem that the reading accuracy of the identification information may become unstable.

[0005] Therefore, an object of the present invention is to provide a reel storage device and a component mounting system that can improve the reading accuracy of the identification information of the reel.

Means for Solving the Problems

[0006] The reel storage device of the present invention comprises a storage section for storing components and storing a plurality of reels, each having an identifier on its side, arranged in a single direction; and a reading unit provided within the storage section, which moves in the direction of the arrangement of the plurality of reels to read identification information from the identifiers of the reels stored in the storage section, wherein the reading unit includes a reel moving section that moves one reel from which identification information is to be read from the identifier so that it protrudes from the arrangement of the other reels. A reel rotating unit is attached to the reel moving unit and rotates the one reel moved by the reel moving unit to move the identifier attached to that one reel to a position where it is not obscured by the other reels. The reel moving part moves the reels so as to protrude from the arrangement of the other reels. The state in which the reel is being rotated by the aforementioned reel rotation part. The system includes a reading unit that reads identification information from the identifier of the aforementioned reel.

[0007] The component mounting system of the present invention comprises a component mounting device that picks up components supplied from a component supply unit using a mounting head and mounts them on a circuit board, and a reel storage device of the present invention described above, wherein the reel storage device moves the reels stored in the storage unit using a reel moving unit and supplies them to the component supply unit. [Effects of the Invention]

[0008] According to the present invention, the accuracy of reading the identification information of the reel can be improved. [Brief explanation of the drawing]

[0009] [Figure 1] Side view of a key part of a component mounting system in one embodiment of the present invention. [Figure 2] Side view of a reel storage device included in a component mounting system according to one embodiment of the present invention. [Figure 3] Perspective view of a reel storage device included in a component mounting system according to one embodiment of the present invention. [Figure 4] Rear view of the reel storage device included in a component mounting system according to one embodiment of the present invention. [Figure 5] A perspective view of the reel storage device included in a component mounting system according to one embodiment of the present invention. [Figure 6]Perspective view of a reading unit included in a reel storage device according to one embodiment of the present invention [Figure 7] Block diagram showing the control system of a reel storage device in one embodiment of the present invention. [Figure 8] (a)(b)(c) Diagram illustrating the operation of the reading unit of the reel storage device in one embodiment of the present invention. [Figure 9] This figure shows the relationship between the storage slots and reels in a reel storage device according to one embodiment of the present invention, and the correspondence between the display state of the lamp pair corresponding to the storage slot. [Figure 10] A flowchart illustrating the flow of the reel check operation performed by the reel storage device in one embodiment of the present invention. [Figure 11] (a)(b) Diagram illustrating the operation of the reading unit included in a reel storage device according to one embodiment of the present invention. [Modes for carrying out the invention]

[0010] Embodiments of the present invention will be described below with reference to the drawings. Figure 1 shows a component mounting system 1 according to one embodiment of the present invention. The component mounting system 1 comprises a component mounting device 2 and a reel storage device 3. The component mounting device 2 is a device that repeatedly performs a component mounting operation in which component BH is mounted on a substrate KB that has been brought in and then discharged. The reel storage device 3 is a device that supplies (replenishes) reels RL containing component BH to the component mounting device 2.

[0011] In Figure 1, the component mounting device 2 comprises a base 11, a substrate transport unit 12, a component supply unit 13, a head moving mechanism 14, and a mounting head 15. The base 11 is installed on the floor surface FL, and the substrate transport unit 12 is provided on the base 11. The substrate transport unit 12 consists of a pair of conveyor mechanisms 12a extending horizontally, and is used for loading, positioning, and unloading substrates KB. For the sake of explanation, the direction in which the substrate transport unit 12 transports the substrates KB will be referred to as the X direction (left-right direction as seen from the operator OP), the horizontal direction perpendicular to the X direction will be referred to as the Y direction (front-back direction as seen from the operator OP), and the up-down direction will be referred to as the Z direction.

[0012] In FIG. 1, the component supply unit 13 includes a feeder cart 21, a plurality of tape feeders 22, and a plurality of reel holders 23. The feeder cart 21 can travel on the floor surface FL and is operated by an operator OP to be connected to the base 11. The feeder cart 21 has a block-shaped feeder base 21F at the upper part, and the plurality of tape feeders 22 are arranged side by side in the X direction on the feeder base 21F.

[0013] In FIG. 1, the plurality of reel holders 23 are arranged side by side in the X direction at a position below the feeder base 21F of the feeder cart 21. Each of the plurality of reel holders 23 consists of a current reel holder 23A and a replenishment reel holder 23B.

[0014] Each of the current reel holder 23A and the replenishment reel holder 23B holds a reel RL around which a carrier tape CT containing components BH is wound. The leading end of the carrier tape CT drawn from the reel RL held by the current reel holder 23A is inserted into a tape insertion port 22G provided at the rear part of the tape feeder 22. The tape feeder 22 conveys the carrier tape CT forward (toward the substrate KB positioned by the substrate conveyance unit 12) by a built-in sprocket (not shown) and continuously supplies the components BH to a component supply port 22K. <�

[0015] A replenishment reel RL is held by the replenishment reel holder 23B, and the leading end of the replenishment reel RL is also inserted into the tape insertion port 22G of the tape feeder 22. The insertion of the leading end of the reel RL into the tape insertion port 22G of the tape feeder 22 is performed by a tape insertion mechanism (not shown).

[0016] When the reel RL held by the current reel holding part 23A becomes empty, the tape feeder 22 continues the component supply operation by conveying the carrier tape CT supplied by the reel RL held by the replenishment reel holding part 23B. When the reel RL held by the current reel holding part 23A becomes empty, the empty reel RL drops downward from the current reel holding part 23A, and the reel RL held by the replenishment reel holding part 23B moves to the current reel holding part 23A.

[0017] In FIG. 1, the head movement mechanism 14 is provided on the base 11 and, for example, consists of an XY table. The head movement mechanism 14 moves the mounting head 15 horizontally above the base 11. The mounting head 15 includes a plurality of nozzles 15N extending downward. The mounting head 15 can vacuum-adsorb the component BH at the lower end of the nozzle 15N and pick up the component BH.

[0018] The reel storage device 3 is driven by an operator OP to travel on the floor surface FL and is connected to the component supply unit 13 (specifically, the feeder carriage 21) of the component mounting device 2 from the rear. The reel storage device 3 stores the replenishment reel RL and supplies (replenishes) the reel RL to the reel holding part 23 (specifically, the replenishment reel holding part 23B) provided in the component supply unit 13 when required by the component mounting device 2. Details of the configuration of the reel storage device 3 will be described later.

[0019] When the component mounting device 2 of the component mounting system 1 performs a component mounting operation of mounting the component BH on the substrate KB, first, the substrate transfer unit 12 is operated to carry in the substrate KB from the outside and position it at a predetermined working position. After positioning the substrate KB at the working position, while the tape feeder 22 supplies the component BH to the component supply port 22K, the head movement mechanism 14 repeatedly moves the mounting head 15 between the tape feeder 22 and the substrate KB. The mounting head 15 alternately performs an operation of adsorbing the component BH to the nozzle 15N (component pickup operation) and an operation of detaching the component BH on the substrate KB (component mounting operation) to mount the component BH on the substrate KB.

[0020] The component mounting device 2 detects that all components BH to be mounted on the circuit board KB have been mounted by repeatedly performing component pickup and component mounting operations with the mounting head 15. Once detected, the circuit board transport unit 12 is activated to transport the circuit board KB to the outside. This completes the component mounting work for one circuit board KB.

[0021] Next, the reel storage device 3 will be described. As shown in Figures 2, 3, and 4, the reel storage device 3 comprises a vehicle body 31 equipped with multiple wheels 31H that can travel on the floor surface FL, and a storage unit 32 consisting of a housing mounted on the vehicle body 31. Inside the storage unit 32, two support rods 33 extending in the X direction are arranged side by side in the Y direction (front-to-back direction).

[0022] In Figures 2 and 3, an upper opening 32K is provided at the top of the front wall 32F of the storage unit 32, and a lower opening 32M is provided at the bottom of the front wall 32F. The upper opening 32K functions as an outlet for reels RL when supplying (replenishing) reels RL from the storage unit 32 to the current reel holding unit 23A of the parts supply unit 13. The lower opening 32M is connected to the discharge reel storage space 32J (Figure 2) formed inside the storage unit 32. The lower opening 32M functions as an inlet for reels RL when they are discharged from the current reel holding unit 23A of the parts mounting device 2 into the discharge reel storage space 32J.

[0023] Multiple partition plates 34 extending along the YZ plane are attached to the two support rods 33 at regular intervals in the X direction. In the upper region of the two support rods 33, each space sandwiched between two adjacent partition plates 34 is a storage slot 35 for individually storing a reel RL. Thus, the reel storage device 3 in this embodiment includes a storage section 32 in which multiple reels RL containing component BH are stored in a line in one direction (here, the X direction), and within the storage section 32, multiple storage slots 35 for individually storing each of the multiple reels RL are arranged in a line in one direction (here, the X direction).

[0024] In Figures 2, 3, and 4, a door 32T that can be opened and closed vertically is provided at the rear of the storage unit 32. By opening the door 32T upwards to open the inside of the storage unit 32, the operator OP can insert and remove the reel RL into each of the multiple storage slots 35.

[0025] The reel RL is inserted into the storage slot 35 with the correct orientation being that the leading edge of the carrier tape CT extends forward from the top of the reel RL, parallel to the YZ plane. As shown in Figures 2, 3, and 5, the center of gravity GV of the reel RL inserted into the storage slot 35 is located between the two support rods 33 in a plan view (Figure 2). Therefore, the reel RL in the storage slot 35 is stably supported by the two support rods 33.

[0026] In Figure 2, each reel RL has an identifier MK on its side, which contains the identification information of the reel RL. The identifier MK here consists of a two-dimensional barcode. The identifier MK is positioned on the right side of the reel RL when it is inserted into the storage slot 35 in the correct orientation.

[0027] In Figures 3 and 4, multiple pairs of lamps 36, each consisting of a blue lamp 36a and a red lamp 36b, are arranged in the X direction at the lower rear surface of the storage unit 32. These lamp pairs 36 are positioned corresponding to each of the multiple storage slots 35.

[0028] In Figures 2, 3, 4, and 5, a movable guide 37 is provided inside the storage section 32. The movable guide 37 extends in the X direction in front of the two support rods 33 (more specifically, in front of the front support rod 33).

[0029] A reading unit 38 is provided on the moving guide 37. The reading unit 38 is attached to the moving guide 37 via a unit movement mechanism 39 (Figures 5 and 6), which consists of, for example, a linear motor. The reading unit 38 can be moved along the moving guide 37 (i.e., in the X direction) by operating the unit movement mechanism 39.

[0030] In Figure 6, the reading unit 38 is mounted on the moving guide 37. The reading unit 38 comprises a base portion 41 that can move freely on the moving guide 37, a retractable arm 42, a reel rotating roller 43, and a reading sensor 44 mounted on the base portion 41. It is a device that moves in the direction of the arrangement of multiple reels RL (storage slots 35) (X direction) and has the function of reading identification information from the identifier MK of the reel RL stored in the storage portion 32 (directly in the storage slots 35).

[0031] The luffing arm 42 consists of a rod-shaped member that extends in a straight line, with its base end attached to the base portion 41. The tip of the luffing arm 42 faces backward, and the reel rotating roller 43 is attached to the tip of the luffing arm 42.

[0032] The luffing arm 42 is capable of luffing along the YZ plane with its base end as a pivot point, and can be raised and lowered by a luffing motor 51 provided in the base portion 41. Specifically, the standby position is a horizontal position with the tip facing rearward, and from that position, it can be raised and lowered to a predetermined elevation angle.

[0033] The reel rotating roller 43 consists of a roller member that can rotate freely in the YZ plane. A roller drive motor 52 is provided in the base portion 41, and the reel rotating roller 43 is connected to the roller drive motor 52 by a belt mechanism (not shown) provided in the luffing arm 42. When the roller drive motor 52 rotates, its power is transmitted to the belt mechanism, and the reel rotating roller 43 is driven to rotate.

[0034] The reading sensor 44 is supported by a sensor support portion 44S that extends upward from the upper surface of the base portion 41. The reading sensor 44 is located to the side of the luffing surface 42P of the luffing arm 42 (a surface passing through the axis of the luffing arm 42 and parallel to the YZ plane; Figure 4).

[0035] The reading sensor 44 in this embodiment consists of a two-dimensional barcode reader, with its reading surface 44M facing the lifting / lowering surface 42P of the lifting / lowering arm 42. In this embodiment, the reading sensor 44 is located on the right side when viewed from the operator OP (i.e., from the rear of the reel storage device 3), and the reading surface 44M of the reading sensor 44 faces to the left (Figure 4). The reading sensor 44 is equipped with an illumination unit 44L (Figure 6), and illumination light is emitted from the illumination unit 44L when performing a reading operation.

[0036] In Figures 5 and 6, a reel detection sensor 45 is provided on the upper surface of the luffing arm 42. The reel detection sensor 45 here consists of a non-contact type sensor (e.g., an optical sensor) with its detection surface facing upward. The reel detection sensor 45 detects the reel RL when it is stored in the storage slot 35.

[0037] Figure 7 shows the control system of the reel storage device 3. The control device 60 of the reel storage device 3 controls the operation of the unit movement mechanism 39, the luffing motor 51, the roller drive motor 52, the lighting unit 44L, and the multiple lamp pairs 36. The control device 60 moves the reading unit 38 on the movement guide 37 by operating the unit movement mechanism 39. As a result, the reading unit 38 moves in the direction of the arrangement of the multiple reels RL (X direction) in the forward area of ​​the arrangement of the multiple storage slots 35.

[0038] The control device 60 operates the luffing motor 51 to raise or lower the luffing arm 42 from its standby position. The control device 60 also operates the roller drive motor 52 to rotate the reel rotating roller 43 in the YZ plane. Thus, in this embodiment, the reel rotating roller 43 is the reel rotating part that rotates the reel RL moved by the luffing arm 42.

[0039] The reel detection sensor 45 detects whether or not a reel RL is stored in the storage slot 35 when the luffing arm 42 is positioned below the storage slot 35 in which the reel RL is stored, and transmits the detection information to the control device 60. In other words, in this embodiment, the reel detection sensor 45 is a reel detection unit that detects the presence or absence of a reel RL in each of the multiple storage slots 35.

[0040] When reading the identification information of a reel RL stored in the storage slot 35 from the identifier MK of that reel RL, the control device 60 moves the reading unit 38 in the X direction with the luffing arm 42 in the standby position to position the luffing arm 42 below the storage slot 35 (Figure 8(a)). Then, the luffing motor 51 is activated to raise the luffing arm 42 from the standby position (Figure 8(a) → Figure 8(b)), and the luffing arm 42 is set to a position where its elevation angle is a predetermined elevation angle (referred to as the "first elevation position") (Figure 8(b)).

[0041] When the luffing arm 42 is raised from a horizontal position to a first raised position, the reel rotating roller 43 comes into contact with the lower edge of the reel RL during this process, and the reel RL is lifted by the luffing arm 42. As a result, the reel RL separates from the rear support rod 33 and is supported by the front support rod 33 and the reel rotating roller 43. Then, as the reel rotating roller 43 rises in conjunction with the luffing arm 42's movement, the reel RL moves upward and forward (Figure 8(a) → Figure 8(b)).

[0042] The reel RL, lifted by the ripple arm 42, moves in a direction perpendicular to the arrangement of other reel RLs stored in other storage slots 35 (in the YZ plane), and a portion of it is positioned to protrude laterally from the arrangement of other reel RLs (see the reel RLs shown by the dashed lines in Figure 8(b)) (Figure 8(b)). The portion of the reel RL that is positioned to protrude from the arrangement of other reel RLs due to being lifted by the ripple arm 42 is positioned opposite the reading surface 44M of the reading sensor 44 in the X direction, and comes into the reading field of view of the reading sensor 44.

[0043] As described above, when a portion of the reel RL that has been lifted by the luffing arm 42 extends beyond the arrangement of the other reels RL, the control device 60 illuminates the reel RL from the illumination unit 44L of the reading sensor 44 and then drives the roller drive motor 52 to rotate the reel rotating roller 43 (arrow R1 shown in Figure 8(c)). Since the reel RL that has been lifted by the luffing arm 42 is in contact with the reel rotating roller 43, when the reel rotating roller 43 rotates, the reel RL rotates in the opposite direction to the rotation of the reel rotating roller 43 (arrow R2 shown in Figure 8(c)).

[0044] When the reel rotation roller 43 is rotated, the reel RL rotates with almost no movement of its center position while being supported by the front support rod 33 and the reel rotation roller 43. As a result, the identifier MK attached to the reel RL moves in the direction of the reel RL's rotation along a circular orbit in the YZ plane centered on the center of the reel RL. This causes the identifier MK attached to the reel RL to move within the reading field of the reading sensor 44 (i.e., move relative to the reading sensor 44), and the reading sensor 44 can read the identification information of the reel RL from the identifier MK of the reel RL, which consists of a two-dimensional barcode.

[0045] When the reel RL starts rotating due to the reel rotation roller 43, the control device 60 causes the reading sensor 44 to read the identification information of the reel RL from the identifier MK. In other words, in this embodiment, the reading sensor 44 reads the identification information from the identifier MK of the reel RL while it is rotating due to the reel rotation roller 43.

[0046] The reading sensor 44 transmits the identification information of reel RL, read from the identifier MK of reel RL, to the control device 60. Once the control device 60 has acquired the identification information of reel RL, it stops the rotation of the reel rotating roller 43 to stop the rotation of reel RL, and lowers the luffing arm 42 to the standby position to lower reel RL (Figure 8(b) → Figure 8(a)). As a result, reel RL is once again supported by the two support rods 33 (Figure 8(a)).

[0047] In this embodiment, the reel storage device 3 moves one of the multiple reels RL arranged in one direction (in this case, the X direction) within the storage unit 32 using the ripple arm 42, causing that one reel RL to protrude laterally from the arrangement of the other reels RL before the identification information is read. This allows the identification information of each individual reel RL, which are arranged in one direction, to be read. Therefore, the identification information of the reels RL can be read while the reels RL are stored in the storage unit 32 (storage slot 35), improving the accuracy of reading the identification information of the reels RL.

[0048] In this case, when reading the identification information of reel RL with the reading sensor 44, it is sufficient to rotate reel RL at least once. However, even if the reading sensor 44 fails to read the identification information during one rotation of reel RL, the identification information can be reliably read by rotating reel RL further.

[0049] Furthermore, if the reel detection sensor 45 detects that reel RL is stored in the storage slot 35, but the reading sensor 44 cannot read the identification information, it can be determined that reel RL stored in the storage slot 35 is stored in the opposite direction to the correct orientation, thus detecting a human error that occurred when storing reel RL in the storage slot 35.

[0050] The control device 60 controls the illumination state (on, blinking, or off) of each of the blue lamps 36a and red lamps 36b that make up the multiple lamp pairs 36, thereby informing the operator OP of the relationship between each storage slot 35 and the reel RL stored in that storage slot 35. The control unit (not shown) of the component mounting device 2 manages the types of components BH supplied by each of the multiple tape feeders 22 based on the production data when manufacturing the mounting substrate.

[0051] The control device 60 of the reel storage device 3 works in conjunction with the control unit of the component mounting device 2 to control (on, blinking, or off) the lamp pairs 36 (blue lamp 36a and red lamp 36b) corresponding to each storage slot 35 so that the replenishment reels RL required by the component mounting device 2 (specifically the tape feeder 22) are stored correctly in the designated storage slots 35. This provides the operator OP with the necessary notifications, enabling the operator OP to perform the work appropriately.

[0052] Specifically, if the storage slot 35 is not requesting the storage of reel RL, the control device 60 turns off both the blue lamp 36a and the red lamp 36b corresponding to that storage slot 35 (column (a) in Figure 9) to inform the operator OP that the storage slot 35 is not affecting production operations. Furthermore, if the storage slot 35 is requesting the storage of reel RL but the reel RL has not yet been stored, the control device 60 turns on the blue lamp 36a corresponding to that storage slot 35 (the red lamp 36b is turned off) (column (b) in Figure 9) to inform the operator OP that the storage slot 35 is in an abnormal state and prompts them to store the reel RL.

[0053] Furthermore, if the storage slot 35 is requesting the storage of a reel RL, and the correct reel RL, consistent with the production data, is actually stored in the correct orientation, the control device 60 illuminates the blue lamp 36a corresponding to the storage slot 35 (the red lamp 36b is turned off) (column (c) in Figure 9) to inform the operator OP that the storage slot 35 is in a normal state.

[0054] Furthermore, if the storage slot 35 has requested the storage of reel RL, and reel RL is actually stored, but the orientation of reel RL is incorrect, the control device 60 will flash the red lamp 36b corresponding to the storage slot 35 (the blue lamp 36a will be turned off) (column (d) in Figure 9) to inform the operator OP that the storage slot 35 is in an abnormal state.

[0055] Furthermore, if the storage slot 35 is in a state where the reel RL is stored even though the storage slot 35 has not requested the storage of the reel RL, the control device 60 will light up the red lamp 36b corresponding to that storage slot 35 (the blue lamp 36a will be turned off) (column (e) in Figure 9), and then, after a certain period of time has elapsed or when the system transitions from a series of checks to production operation, both the blue lamp 36a and the red lamp 36b will be turned off (column (a) in Figure 9). The state in which the reel RL is stored in a storage slot 35 that has not requested the storage of the reel RL is not according to the production data, but it is not of a nature that affects production, so the lighting of the red lamp 36b is intended to be temporary, merely to give the operator OP a warning.

[0056] In this embodiment, the lamp pairs 36 provided in relation to each storage slot 35 serve as notification units that notify the storage slot 35 whose correspondence with the reel RL is determined to be correct by the determination unit 60a, and that which storage slot 35 whose correspondence with the reel RL is determined to be incorrect.

[0057] Figure 10 is a flowchart showing the flow of the reel check operation performed by the reel storage device 3. The reel check operation is a process performed by the control device 60 when it detects that the door 32T has been closed by the operator OP, in which the device checks the correspondence between the storage slot 35 and the reel RL.

[0058] When the control device 60 detects that the door 32T has been closed by the operator OP, it first moves the reading unit 38, with the luffing arm 42 in the standby position, to a storage slot 35 located at one end of the row of storage slots 35 (step ST1), and checks for the presence or absence of a reel RL in that storage slot 35 (whether or not a reel RL is stored there) (step ST2). If it detects that there is no reel RL in the storage slot 35 (no reel RL is stored in the storage slot 35), it checks, based on the production data, whether or not a request for a reel RL had been made for that storage slot 35 (step ST3).

[0059] If the control device 60 determines in step ST3 that no request for reel RL has been made for the storage slot 35, it determines that the correspondence between the storage slot 35 and reel RL is normal (step ST4), and controls the lamp pair 36 corresponding to the storage slot 35 (step ST5). Here, according to column (a) of Figure 9, both the blue lamp 36a and the red lamp 36b corresponding to the storage slot 35 are turned off (or kept off) to inform the operator OP that the storage slot 35 is in a normal state.

[0060] On the other hand, if the control device 60 finds in step ST3 that a request for reel RL has been made for the storage slot 35, it determines that the correspondence between the storage slot 35 and reel RL is abnormal (step ST6) and controls the lamp pair 36 corresponding to the storage slot 35 (step ST5). Here, according to column (b) of Figure 9, the blue lamp 36a corresponding to the storage slot 35 is set to blink (the red lamp 36b is turned off) to inform the operator OP that the storage slot 35 is in an abnormal state and prompt the operator OP to store the reel RL.

[0061] In step ST2, if the control device 60 detects that there is a reel RL in the storage slot 35 (that the reel RL is stored in the storage slot 35), it checks, based on the production data, whether a request for the reel RL had been made for that storage slot 35 (step ST7). If the control device 60 finds that no request for the reel RL had been made for that storage slot 35, it determines that it is necessary to alert the operator OP (step ST8) and controls the lamp pair 36 corresponding to that storage slot 35 (step ST5). Here, the red lamp 36b corresponding to that storage slot 35 is turned on (the blue lamp 36a is turned off) (column (e) in Figure 9), and then, after a certain period of time has elapsed, both the blue lamp 36a and the red lamp 36b are turned off (column (a) in Figure 9).

[0062] Meanwhile, in step ST7, if the control device 60 determines, based on the production data, that a request for reel RL has been made for its storage slot 35, it reads the identification information of the reel RL stored in the storage slot 35. In reading the identification information of the reel RL, as described above, the control device 60 first raises the luffing arm 42 to lift the reel RL (step ST9). Then, it operates the reel rotating roller 43 to rotate the reel RL (step ST10), and reads the identification information from the identifier MK attached to the reel RL using the reading sensor 44 (step ST11).

[0063] When the control device 60 reads the identification information of the reel RL, it stops the rotation of the reel rotating roller 43 and lowers the luffing arm 42 to the standby position. It then determines whether the read identification information matches the production data (step ST12). If it detects that the read identification information matches the production data and that the correct reel RL is stored in the correct orientation in the storage slot 35 that is requesting the reel RL, it determines that the correspondence between the storage slot 35 and the reel RL is normal (step ST13), and controls the lamp pair 36 in accordance with that determination (step ST5). Here, according to column (c) of Figure 9, the blue lamp 36a corresponding to the storage slot 35 is turned on (the red lamp 36b is turned off) to notify the operator OP that the storage slot 35 is in a normal state.

[0064] In response, in step ST12, if the control device 60 detects that the identification information read in step ST11 does not match the production data, and that the wrong reel RL is stored in the storage slot 35 requesting the reel RL, or that the reel RL is stored in the wrong direction, it determines that the correspondence between the storage slot 35 and the reel RL is abnormal (step ST14), and controls the lamp pair 36 in accordance with that determination (step ST5). Here, according to column (d) in Figure 9, the red lamp 36b corresponding to the storage slot 35 is set to blink (the blue lamp 36a is turned off) to notify the operator OP that the storage slot 35 is in an abnormal state.

[0065] After the control device 60 has performed the control of the lamp pair 36 in step ST5 via steps ST4, ST6, ST8, ST13, or ST14, it determines whether the reading unit 38 has reached the storage slot 35 located at the other end of the row of storage slots 35 (step ST15). If the control device 60 determines that the reading unit 38 has not reached the storage slot 35 located at the other end of the row of storage slots 35, it moves the reading unit 38 to the adjacent storage slot 35 (step ST16) and then repeats the process from steps ST2 to ST15. On the other hand, if the reading unit 38 has reached the storage slot 35 located at the other end of the row of storage slots 35 in step ST15, it considers that the check for all storage slots 35 is complete and terminates the series of reel check operations.

[0066] In this embodiment, the reading unit 38 reads identification information from the identifier MK of the reel RL in the storage slot 35 in which the reel RL has been detected by the reel detection sensor 45 (step ST2 → step ST7 → step ST9 → step ST10 → step ST11). Then, the determination unit 60a of the control device 60 makes a determination based on the identification information read by the reading sensor 44 of the reading unit 38 whether the correspondence between the reel RL and the storage slot 35 in which the reel RL is stored is correct (whether the relationship between the storage slot 35 and the reel RL is consistent with the production data) (step ST12).

[0067] Therefore, in the reel storage device 3 of this embodiment, whenever a reel RL is inserted into or removed from the storage unit 32, including when a new reel RL is stored in the storage unit 32 by the operator OP, it is automatically determined whether the operation performed by the operator OP was correct, thus preventing human error by the operator OP.

[0068] After performing the reel check operation described above, if the component mounting device 2 requests the supply (replenishment) of a reel RL, the control device 60 of the reel storage device 3 first moves the reading unit 38 to the storage slot 35 where the requested reel RL is stored. Then, it operates the luffing motor 51 to raise the luffing arm 42 (Figure 11(a) → Figure 11(b)), and raises it to a predetermined luffing position (referred to as the "second luffing position") that exceeds the first luffing position (Figure 11(b)).

[0069] As the luffing arm 42 is raised from a horizontal position to a second raised position, the reel RL is lifted by the luffing arm 42 via the reel rotating roller 43. At this time, the reel RL separates from the rear support rod 33 and is supported by the front support rod 33 and the reel rotating roller 43. Then, as the reel rotating roller 43 rises in conjunction with the luffing arm 42's raising and lowering movement, the reel RL moves upward and forward.

[0070] As the luffing arm 42 moves beyond the first raised position and the reel rotating roller 43 approaches the front support rod 33, the center of gravity GV of the reel RL, which is lifted by the luffing arm 42, approaches the front support rod 33. When the center of gravity GV of the reel RL is positioned in front of the front support rod 33, the reel RL rolls forward of the front support rod 33 (Figure 11(b)) and moves from the upper opening 32K of the storage unit 32 to the current reel holding unit 23A located in front of the storage unit 32. As a result, the reel RL is supplied (replenished) to the parts supply unit 13 of the parts mounting device 2.

[0071] As described above, in the reel storage device 3 of the component mounting system 1 in this embodiment, one of the multiple reels RL arranged in one direction (X direction) within the storage section 32 is moved by the luffing arm 42, and the identification information is read after that one reel RL is made to protrude laterally from the arrangement of the other reels RL. Therefore, the identification information of each individual reel RL, which is arranged in one direction, can be read. As a result, the identification information of the reels RL can be read while the reels RL are stored in the storage section 32 (storage slot 35), and the accuracy of reading the identification information of the reels RL can be improved.

[0072] Furthermore, in the reel storage device 3 of this embodiment, the reading unit 38 reads identification information from the identifier MK of the reel RL in the storage slot 35 in which the reel RL has been detected by the reel detection sensor 45. The determination unit 60a of the control device 60 determines whether the correspondence between the reel RL and the storage slot 35 in which the reel RL is stored is correct, based on the identification information read by the reading sensor 44 of the reading unit 38. Therefore, when a reel RL is inserted into or removed from the storage unit 32, including when a new reel RL is stored in the storage unit 32 by the operator OP, it is automatically determined whether the operation performed by the operator OP was correct, thereby preventing human error by the operator OP.

[0073] While embodiments of the present invention have been described above, the present invention is not limited to those described above, and various modifications are possible. For example, in the above-described embodiment, the identifier MK consisted of a two-dimensional barcode, and the reading sensor 44 consisted of a two-dimensional barcode reader, but this is just an example, and the identifier MK only needs to have the identification information of the reel RL recorded on it, and the reading sensor 44 only needs to be capable of reading the identification information recorded on the identifier MK. Also, in the above-described embodiment, because the identifier MK was a two-dimensional barcode, the reading sensor 44 read the identification information while the reel RL was rotating, that is, while moving it relative to the reading sensor 44, but if the reading sensor 44 has an imaging function, it is not necessary to read the identification information while rotating the reel RL (it is necessary to rotate the reel RL to move the identifier MK hidden by another reel RL to a position where it is not hidden by the other reel RL).

[0074] Furthermore, in the above-described embodiment, the reading unit 38 was configured to read identification information only from the reel RL identifier MK in the storage slot 35 in which the reel RL was detected to be stored by the reel detection sensor 45. However, it is also possible to configure the reading unit 38 to read identification information from the identifier MK of all reel RLs stored in the storage slots 35, regardless of whether a reel RL is present or not (at least perform an operation to read the information, i.e., raise and lower the lifting arm 42). In this case, the reel RL will not be lifted in the storage slot 35 in which no reel RL is stored, and the reading sensor 44 will not read the identification information, resulting in wasted operation. However, this has the advantage of eliminating the need for a reel detection unit (reel detection sensor 45). [Industrial applicability]

[0075] The present invention provides a reel storage device and a component mounting system that can improve the accuracy of reading the identification information of the reels. [Explanation of symbols]

[0076] 1. Component mounting system 2. Component mounting device 3. Reel storage device 13. Parts Supply Department 15 Mounting Head 32 Storage Unit 33 Support rod 34 partition plates 35 storage slots 36 Lamp vs. (News Department) 36a Blue light 36b Red light 37 Travel Guide 38 Reading Unit 42. Retractable arm (reel movement section) 43 Reel Rotating Roller (Reel Rotating Part) 44 Reading sensor (reading unit) 45 Reel detection sensor (reel detection unit) 60 Control device 60a Judgment Unit RL Reel MK identifier BH parts KB board

Claims

1. A storage section in which parts are stored, and multiple reels with identifiers on their sides are arranged in one direction, The storage unit includes a reading unit provided within the storage unit that moves in the direction of the arrangement of the plurality of reels to read identification information from the identifiers of the reels stored in the storage unit, The aforementioned reading unit is A reel moving unit moves one reel that attempts to read identification information from the aforementioned identifier so that it protrudes from the arrangement of the other reels, A reel rotating unit is attached to the reel moving unit and rotates the one reel moved by the reel moving unit to move the identifier attached to that one reel to a position where it is not obscured by the other reels. A reading unit reads identification information from the identifier of one reel that is moved by the reel moving unit so as to protrude from the arrangement of the other reels and is being rotated by the reel rotating unit, A reel storage device equipped with [a specific feature].

2. The reel storage device according to claim 1, wherein a plurality of storage slots for individually storing each of the plurality of reels are provided in the storage unit, arranged in the same direction, the reading unit comprises a reel detection unit for detecting the presence or absence of a reel in each of the plurality of storage slots, and reads identification information from the identifier of the reel in the storage slot in which the reel has been detected by the reel detection unit to be stored.

3. The reel storage device according to claim 2, wherein the reading unit reads identification information from the identifiers of all reels stored in the plurality of storage slots.

4. The reel storage device according to claim 2, further comprising a determination unit that determines whether the correspondence between a reel and the storage slot in which the reel is stored is correct, based on the identification information read by the reading unit.

5. The reel storage device according to claim 4, further comprising a notification unit that notifies the user of a storage slot in which the determination unit has determined that the correspondence with the reel is incorrect.

6. A component mounting device that picks up components supplied from a component supply unit using a mounting head and mounts them onto a circuit board, A reel storage device according to any one of claims 1 to 5, comprising: The reel storage device is a component mounting system that moves the reels stored in the storage section using the reel moving section and supplies them to the component supply section.

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