JP2020074472A - Multi feeder device - Google Patents

Abstract

To provide a multi feeder device that can improve the production efficiency by streamlining a setup change method.SOLUTION: A multi feeder device includes a first loading drive unit capable of feeding a first carrier tape inserted into a first insertion opening to a supply position by forward rotation, a second loading drive unit capable of feeding a second carrier tape inserted into a second insertion opening to the supply position by forward rotation, and a feeder control unit capable of feeding the first carrier tape out to the supply position by controlling the forward rotation and the reverse rotation of the first loading drive unit, and pulling the first carrier tape back when the second carrier tape is used.SELECTED DRAWING: Figure 2

Description

  The present specification relates to a multi-feeder device that selectively feeds two carrier tapes to a supply position to supply components.

  Equipment for producing boards on which a large number of components are mounted include a solder printer, a component mounter, a reflow machine, and a board inspection machine. It has become common to connect these facilities to form a substrate production line. Of these, the component mounter includes a board transfer device, a component supply device, a component transfer device, and a control device. As a typical example of the component supply device, there is a feeder device of a type that feeds a carrier tape holding components in respective cavity portions formed side by side in the tape length direction. In recent years, a multi-feeder device has been developed that selectively feeds two carrier tapes to a supply position to supply components, and a technical example thereof is disclosed in Patent Document 1.

  The component tape feeder of Patent Document 1 has two feeding modules that advance separate component tapes, one component exposure module that exposes the components contained in the component tapes that are advanced, and the advanced components. An output module for advancing the tape from the feeder. According to this, while a component accommodated in a certain component tape is conveyed and supplied to the component placement machine (component transfer device), another component accommodated in another component tape can be put on standby. It is said that you can.

Japanese Patent No. 48576761

  By the way, the multi-feeder device including the component tape feeder of Patent Document 1 has an advantage that the number of types of components to be supplied can be increased, so that it is possible to produce a substrate having a large number of types of components. When a board is produced while switching the board type (board type) based on the production plan, the board production efficiency varies depending on the operation mode of the multi-feeder device and the setup change method. However, Patent Document 1 does not disclose specific contents such as an efficient operation mode of the multi-feeder device when a substrate is produced while switching substrate types, and setup change work performed by an operator.

  This specification makes it a subject which should be solved to provide the multi-feeder apparatus which can improve the production efficiency by making the setup change method efficient.

  The present specification describes a first loading drive unit that makes it possible to feed out the first carrier tape inserted in the first insertion port to the supply position by rotating in the normal direction, and a first loading drive unit in the second insertion port by rotating in the normal direction. The second loading drive unit that allows the inserted second carrier tape to be fed out to the supply position and the forward and reverse rotations of the first loading drive unit are controlled to move the first carrier tape to the supply position. A multi-feeder device is provided, which includes a feeder control unit that feeds the first carrier tape back when the second carrier tape is used.

  The multi-feeder device disclosed in this specification feeds out one carrier tape for current production holding the components of the current production type to supply the components of the current production type, and the next production holding the components of the next production type. When the carrier tape for use is loaded, it is initially held and one carrier tape is automatically pulled back. According to this, the multi-feeder device performs an efficient operation of preparing the parts of the next production type in advance while supplying the parts of the current production type. The time required for switching is reduced. On the other hand, the operator can load the carrier tape for the next production at an arbitrary time while the multi-feeder device is supplying the components of the current production type, so that the degree of freedom of the setup change operation is large. Furthermore, the production operation of the substrate is not interrupted by the replacement work of the unused carrier tape, and the replacement work of the carrier tape is facilitated. These improve the production efficiency of the substrate.

It is a plan view of a component mounter using the multi-feeder device of the embodiment. It is a perspective view which illustrates typically the structure of a multi-feeder apparatus. It is a block diagram which shows the control structure of a multi-feeder apparatus. It is a figure of a processing flow which illustrates and explains a manufacturing method of a substrate using a multi feeder device of an embodiment. It is a figure explaining the process of the multi-job line balance which a production management system performs. It is the figure which showed the modification of the feeder serving list.

(1. Configuration of component mounter 1)
First, the configuration of the component mounter 1 using the multi-feeder device 8 of the embodiment will be described with reference to FIG. The direction from the left side to the right side in the drawing of FIG. 1 is the X-axis direction in which the substrate K is loaded and unloaded, and the direction from the rear on the lower side of the paper toward the front on the upper side of the paper is the Y-axis direction. The component mounter 1 is configured by assembling a board transfer device 2, a component supply device 3, a component transfer device 4, a component camera 5, a control device 6 and the like on a machine base 9. The board transfer device 2, the component supply device 3, the component transfer device 4, and the component camera 5 are controlled by the control device 6 and each perform a predetermined work.

  The board transfer device 2 carries in the board K to the mounting position, positions it, and carries it out. The substrate transfer device 2 includes a transfer unit 25 and a backup unit 26. The transport unit 25 includes a pair of guide rails (21, 22), a pair of conveyor belts, and the like. The pair of guide rails (21, 22) extend in the transport direction (X-axis direction) across the center of the upper surface of the machine base 9 and are attached to the machine base 9 in parallel with each other. Inside the pair of guide rails (21, 22) facing each other, a pair of endless annular conveyor belts (not shown) are arranged in parallel. The pair of conveyor belts rotates with both edges of the board K placed, and carries the board K into and out of the mounting position set in the center of the machine base 9. The backup unit 26 is arranged below the mounting position. The backup unit 26 pushes up the board K and clamps it in a horizontal posture to position it at the mounting position. As a result, the component transfer device 4 can perform the component mounting operation at the mounting position.

  The component supply device 3 includes a pallet table 31 and a plurality of feeder devices. The pallet base 31 has a substantially rectangular plate shape and is detachably mounted on the upper surface of the machine base 9 toward the rear side. A plurality of thin feeder devices are arranged side by side in a plurality of slots formed in parallel with the upper surface of the pallet base 31. In FIG. 1, seven single feeder devices 7 and two multi-feeder devices 8 are illustrated, and in reality, a larger number of feeder devices are arranged in a row.

  The single feeder device 7 is composed of a main body 71, a tape reel 72 that is replaceably set on the rear of the main body 71, and the like. A supply position 73 is set on the upper portion of the main body 71 near the front end. The carrier tape 7T is wound and held on the tape reel 72. The carrier tape 7T is composed of a bottom tape having cavity parts for holding components formed at a constant pitch, and a cover tape attached to the bottom tape to cover the cavity parts. The single feeder device 7 feeds the carrier tape 7T at a constant pitch and sequentially supplies the components to the supply position 73.

  The multi-feeder device 8 is composed of a main body 81 and two tape reels (821, 822) which are set on the rear part of the main body 81 in an exchangeable manner. Carrier tapes (8T1, 8T2) (shown in FIG. 2) are wound and held on the tape reels (821, 822), respectively. A supply position 83 is set in the upper portion near the front end of the main body 81. The detailed configuration of the multi-feeder device 8 will be described later.

  The multi-feeder device 8 and the single-feeder device 7 have compatibility with tape reels (72, 821, 822) and carrier tapes (7T, 8T1, 8T2). The positions of the slots of the multi-feeder device 8 and the single-feeder device 7 can be changed, and they can be replaced with other feeder devices. Furthermore, the entire component supply device 3 is also replaceable. Further, the multi-feeder device 8 and the single-feeder device 7 may have separate reel loading sections for setting the tape reels (72, 821, 822).

  The component transfer device 4 is an XY robot type device that can move horizontally in the X-axis direction and the Y-axis direction. The component transfer device 4 includes a pair of Y-axis rails (41, 42), a Y-axis slider 43, a mounting head 44, a nozzle tool 45, a suction nozzle 46, a substrate camera 47, and the like. The pair of Y-axis rails (41, 42) are arranged on both sides of the machine base 9 and extend in the Y-axis direction. A Y-axis slider 43 is movably mounted on the Y-axis rails (41, 42). The Y-axis slider 43 is driven in the Y-axis direction by a Y-axis ball screw mechanism (not shown).

  The mounting head 44 is movably mounted on the Y-axis slider 43. The mounting head 44 is driven in the X-axis direction by an X-axis ball screw mechanism (not shown). The nozzle tool 45 is replaceably held by the mounting head 44. The nozzle tool 45 has one or a plurality of suction nozzles 46 that suction and collect components by using negative pressure. The suction nozzle 46 moves up and down to pick up components from the supply position 73 of the single feeder device 7 and the supply position 83 of the multi-feeder device 8 and mount them on the board K at the mounting position. The board camera 47 is provided on the mounting head 44 along with the nozzle tool 45. The board camera 47 images the position reference mark attached to the board K to detect the accurate position of the board K.

  The component camera 5 is provided upward on the upper surface of the machine base 9 between the substrate transfer device 2 and the component supply device 3. The component camera 5 images the state of the component sucked by the suction nozzle 46 while the mounting head 44 is moving from the component supply device 3 onto the substrate K. When an error in the suction posture of the component, a shift in the rotation angle, or the like is found from the image data of the component camera 5, the control device 6 finely adjusts the component mounting operation as necessary, and if the component is difficult to mount, the component is removed. Control to discard.

  The control device 6 is assembled to the machine base 9, and the position where it is arranged is not particularly limited. The control device 6 is a computer device having a CPU and operating by software. The control device 6 includes an input unit for input setting by an operator, a display unit for displaying information to the operator, and a storage unit for storing various programs and data. The control device 6 controls the component mounting operation based on the image data of the board camera 47 and the component camera 5, the detection data of the sensor (not shown), and the like. Further, the control device 6 sequentially collects and updates operation status data such as the number of production of the completed boards K, the mounting time required for mounting the components, and the number of occurrences of component suction errors. Further, the control device 6 is communicatively connected to a production management system 10 described later.

(2. Configuration of the multi-feeder device 8 of the embodiment)
FIG. 2 is a perspective view schematically illustrating the configuration of the multi-feeder device 8 of the embodiment. In FIG. 2, the first carrier tape 8T1 and the second carrier tape 8T2 pulled out from the tape reels (821, 822) are indicated by broken lines. Further, FIG. 3 is a block diagram showing a control configuration of the multi-feeder device 8. In FIGS. 2 and 3, the driving unit is schematically shown by a black circle and a broken circle, and the sensor is schematically shown by a white circle.

  The multi-feeder device 8 has a first insertion opening 841 near the middle height of the rear end of the main body 81, and a second insertion opening 842 above the first insertion opening 841. The front end of the first carrier tape 8T1 pulled out from the front tape reel 821 is inserted into the first insertion slot 841. The tip of the second carrier tape 8T2 that is pulled out from the rear tape reel 822 and passes through the front tape reel 821 is inserted into the second insertion slot 842.

  A first feeding rail 843 is arranged from the first insertion opening 841 toward the upper front part of the main body 81. The tape peeling mechanism 845 is arranged in front of the first feeding rail 843, and the supply position 83 is set in front of the tape peeling mechanism 845. A second feeding rail (not shown) is arranged from the second insertion opening 842 toward the front upper portion of the main body 81. The tip of the second feeding rail is interrupted above the middle position of the first feeding rail 843.

  The first loading drive unit 851 is arranged at a position near the first insertion opening 841 of the first feeding rail 843. A first loading position sensor 861 is provided at the first loading position on the front side of the first loading drive unit 851. Similarly, the second loading drive unit 852 is arranged at a position near the second insertion opening 842 of the second feeding rail. A second loading position sensor 862 is arranged at the second loading position on the front side of the second loading driving unit 852.

  A second standby position sensor 864 is provided at a second standby position near the tip of the second feeding rail. The first standby position sensor 863 is arranged at a first standby position corresponding to the lower side of the second standby position sensor 864 of the first feeding rail 843. Further, below the supply position 83, a feeding drive unit 853 is arranged. On the other hand, the first winding drive unit 855 and the second winding drive unit 856 are arranged on the back surface side of the bearing portions of the tape reels (821, 822) which are not visible in FIG.

  The first loading drive unit 851, the second loading drive unit 852, and the feeding drive unit 853 are configured to include a step motor, a speed reduction mechanism, and a sprocket. The step motor rotates normally or reversely under the control of the feeder controller 89. The reduction mechanism reduces the rotation of the step motor and transmits it to the sprocket. The sprocket is supported by the main body 81 and engages with the sprocket holes formed in the side edges of the carrier tapes (8T1, 8T2). The sprocket is rotatably driven by a step motor to feed and pull back the carrier tape (8T1, 8T2).

  The first winding drive unit 855 and the second winding drive unit 856 drive the tape reels (821, 822) in reverse according to the control from the feeder control unit 89 to wind the carrier tape (8T1, 8T2). I do. The first take-up drive unit 855 and the second take-up drive unit 856 make the forward rotation of the tape reels (821, 822) free except during winding so as not to obstruct the feeding of the carrier tape (8T1, 8T2). ing.

  The first loading position sensor 861 detects the presence / absence of the first carrier tape 8T1 at the first loading position. The first standby position sensor 863 detects the presence / absence of the first carrier tape 8T1 at the first standby position. Similarly, the second loading position sensor 862 detects the presence / absence of the second carrier tape 8T2 at the second loading position. The second standby position sensor 864 detects the presence or absence of the second carrier tape 8T2 at the second standby position.

  An operation panel 87 is arranged on the upper surface of the main body 81 near the rear. The operation panel 87 has a display lamp for displaying the state of the multi-feeder device 8. Further, the operation panel 87 has a setting switch for setting feeding conditions such as the feeding speed and the feeding pitch of the carrier tape (8T1, 8T2).

  The feeder control section 89 is assembled to the main body section 81, and the arrangement position thereof is not particularly limited. The feeder control unit 89 is a computer device having a CPU and operating by software. As shown in FIG. 3, the feeder control unit 89 receives detection signals from the four sensors (861 to 864), respectively. Further, the feeder control unit 89 controls five driving units (851, 852, 853, 855, 856) to control the feeding, pulling back, and pitch feeding of the carrier tape (8T1, 8T2). Further, the feeder control unit 89 exchanges information with the connected operation panel 87. Further, the feeder control unit 89 is communicatively connected to the control device 6 and controls the component supply operation in cooperation with the control device 6.

  A tape cutter 91 supported by a machine base 9 is provided on the front side of the multi-feeder device 8. The tape cutter 91 extends in the width direction of the pallet table 31 and is shared by all the feeder devices (7, 8). The carrier tape (7T, 8T1, 8T2) of each feeder device (7, 8) is fed forward from the supply position (73, 83) and passes between the fixed blade and the movable blade of the tape cutter 91. The tape cutter 91 operates according to a command from the control device 6 and collectively cuts the part of each carrier tape (7T, 8T1, 8T2) that has been fed to the front side of the tape cutter 91.

(3. Board production method)
Next, a method of manufacturing a substrate using the multi-feeder device 8 will be described. FIG. 4 is a process flow diagram illustrating a substrate production method. This production method is advanced by the cooperation of the component mounter 1 and the production management system 10, and also requires the work of the operator. The production management system 10 is a computer system including a storage device 11, and can be accessed by a worker.

  In step S1 of FIG. 4, the operator inputs the type of the board K to be produced (board type) based on the production plan into the production management system 10. In the example of FIG. 4, the worker firstly produces the substrate K of the first substrate type, secondly produces the substrate K of the second substrate type, and finally produces the substrate K of the Nth substrate type. Enter. At this time, the operator also inputs the production information necessary for producing each board K of the first to Nth board types. However, in the second and subsequent productions of the same board type, since the production information is already stored in the storage device 11, the input operation is not necessary again.

  In the next step S2, the production management system 10 performs multi-job line balance processing, and stores the processing result in the storage device 11 as a feeder distribution list 12. The multi-job line balance is a simulation technique for optimizing the production method when the substrate K is produced while switching the substrate type based on the production plan. The multi-job line balance targets a component mounting line in which a plurality of component mounting machines are arranged in a row, but in this embodiment, one component mounting machine 1 is assumed as a simple example. The optimization simulation includes a process of reducing the number of times the feeder devices 7 and 8 are replaced when switching the substrate type, a process of optimizing the arrangement order of the feeder devices 7 and 8 and shortening the movement distance of the mounting head 44, and the like. Is included.

  The production management system 10 preferentially allocates the carrier tape holding the common components mounted on a large number of types of substrates K to the single feeder device 7 in the multi-job line balance process, and also mounts the carrier tape on a small number of types of substrates K. The carrier tape holding the specific parts is preferentially assigned to the multi-feeder device 8.

  In the following, a multi-job line balance in the case where one single feeder device 7 and two multi-feeder devices 8 are used together to produce the substrates K of the first to third substrate types will be described. FIG. 5 is a diagram illustrating a multi-job line balance process performed by the production management system 10. In FIG. 5, the upper table shows the initial production information, and the lower table shows the feeder serving list 12 of the processing result.

  In the initial production information, the types of components to be mounted on each board K of the first to third board types are defined. That is, the components A, B, and C are mounted on the board K of the first board type, the components A, C, and D are mounted on the board K of the second board type, and the board of the third board type is mounted. Parts K, B, and E are attached to K. According to this, the component A is mounted on all three board types. Further, the components B and C are mounted on two types of board types, and the components D and E are mounted on only one type of board types.

  Therefore, the common component mounted on the largest number of types of boards K is the component A. The production management system 10 preferentially allocates the carrier tape holding the common part A to the single feeder device 7. Further, the unique parts mounted on the smallest number of types of boards K are the parts D and E. The production management system 10 preferentially allocates the carrier tape holding the unique component D and the carrier tape holding the unique component E to the two multi-feeder devices 8. At this point, the allocation to one single feeder device 7 has already been completed. Therefore, the production management system 10 allocates the carrier tape holding the part B and the carrier tape holding the part C to the two multi-feeder devices 8.

  Finally, the parts shown in the feeder distribution list 12 are allocated. That is, the slot number. The carrier tape 7T holding the common part A is assigned to the single feeder device 7 installed in the No. 1 unit. In addition, the slot number. The first carrier tape 8T1 holding the component B and the second carrier tape 8T2 holding the unique component D are assigned to the first multi-feeder device 8 equipped in the No. 2 unit. Further, the slot number. The first carrier tape 8T1 holding the component C and the second carrier tape 8T2 holding the unique component E are assigned to the second multi-feeder device 8 equipped in the No. 3 unit.

  By the way, the five kinds of parts A to E can be supplied by using three single feeder devices 7 and one multifeeder device 8 together. In this case, the production management system 10 preferentially assigns the carrier tape holding the common component A to the single feeder device 7, and the carrier tape holding the unique component D and the carrier tape holding the unique component E are assigned to the multi-feeder device. 8 is assigned preferentially. At this point, the allocation to one multi-feeder device 8 has already been completed. Therefore, the production management system 10 allocates the carrier tape holding the part B and the carrier tape holding the part C to the remaining two single feeder devices 7.

  Further, the five types of parts A to E can be supplied by using the five single feeder devices 7. From another point of view, the number of slots used can be reduced by using the multi-feeder device 8.

  After the feeder distribution list 12 is stored, the production of the board K by the component mounter 1 is started. The production of the substrate K proceeds by repeating steps S4 to S11 between steps S3 to S12 in FIG. In step S4, the control device 6 of the component mounter 1 sets a board type to be produced according to a command from the production management system 10. In step S4 of the first time, the control device 6 sets the first first substrate type. After that, the first substrate type becomes the substrate K currently being produced (current substrate type), and the second substrate type becomes the substrate K to be produced next (next substrate type). Further, the common part A, the part B, and the part C are parts of the current production type, and the common part A, the part C, and the specific part D are parts of the next production type.

  Only for the first type of the first substrate, the worker refers to the feeder distribution list 12 to perform the setup work of the feeder device before starting the production. That is, the worker loads the carrier tape 7T holding the common component A into the single feeder device 7. Further, the operator loads the first carrier tape 8T1 holding the component B into the first multi-feeder device 8 and the first carrier tape 8T1 holding the component C into the second multi-feeder device 8. To do. In the multi-feeder device 8, the tape reel 821 on which the first carrier tape 8T1 is wound first is set on the front side, and the tape reel 822 on which the second carrier tape 8T2 is wound next is set on the rear side. As described below.

  When loading the first carrier tape 8T1 into the multi-feeder device 8, the operator inserts the tip of the carrier tape 8T1 from the first insertion port 841 to the first loading position sensor 861. As a result, the first loading position sensor 861 detects the insertion of the tip of the carrier tape 8T1. At this time, the first loading drive unit 851 initially holds the carrier tape 8T1 with the sprocket engaged with the carrier tape 8T1.

  Then, the feeder control unit 89 drives the first loading drive unit 851 to automatically feed out the initially held carrier tape 8T1. Then, since the first standby position sensor 863 detects the arrival of the tip of the carrier tape 8T1 at a certain point, the feeder control unit 89 stops the first loading drive unit 851. Thus, the multi-feeder device 8 can automatically feed the first carrier tape 8T1 to the standby position.

  In step S5, the component mounter 1 starts production of the board K of the current board type, but the processing of steps S6 and S7 corresponds to the setup change operation. In step S6, the component mounter 1 operates the tape cutter 91 to cut each carrier tape (7T, 8T1, 8T2). However, in the first type of the first substrate, since none of the carrier tapes (7T, 8T1, 8T2) has been fed to the tape cutter 91, the process of step S6 is unnecessary.

  In the next step S7, the components to be mounted on the current board type are automatically switched. However, in the first type of the first board, the common component A, the component B, and the component C are prepared so as to be supplied. More specifically, the single feeder device 7 feeds the carrier tape 7T to the feeding position 73 to enable the feeding of the common component A. Further, in the two multi-feeder devices 8, the first loading drive unit 851 feeds the first carrier tape 8T1 from the standby position to the supply position 83. At this time, the sprocket of the feeding drive unit 853 also engages with the carrier tape 8T1. Accordingly, the pitch feeding of the first carrier tape 8T1 can be performed by the cooperation of the first loading driving unit 851 and the feeding driving unit 853.

  With the above, the setup change operation is completed, and the production of the board K of the current board type is actually started. That is, the production operation by the supply of components by the single feeder device 7 and the two multi-feeder devices 8 and the collection and mounting of components by the component transfer device 4 is repeated, and the substrates K of the current substrate type are sequentially produced. .. In parallel with the production operation of the substrate K of the current substrate type, the processes of steps S8 to S10 are performed. In the processing of steps S8 to S10, the feeder serving list 12 is referred to.

  In step S8, the multi-feeder device 8 automatically ejects the unnecessary carrier tape that is no longer used. The unused carrier tape means a carrier tape which is a component that has been supplied to the substrate type for which production has been completed and which holds a component that is not mounted after the current substrate type and the next substrate type. The control device 6 determines whether the carrier tape is unnecessary. In the present embodiment, the process of step S8 is unnecessary, and the discharging operation is actually performed as follows.

  That is, the feeding drive unit 853 engaged with the unused carrier tape and one of the first loading drive unit 851 and the second loading drive unit 852 reversely rotate to pull back the carrier tape. Furthermore, one of the first winding drive unit 855 and the second winding drive unit 856 reversely drives the tape reel (821 or 822) to wind the carrier tape. As a result, the tip of the unused carrier tape is discharged rearward from the first insertion opening 841 or the second insertion opening 842. Therefore, the worker can remove the tape reel (821 or 822) wound with the unused carrier tape without interrupting the production operation of the component mounter 1.

  The operation of ejecting the carrier tape that is no longer used can also be performed by a command from the operation panel 87. Further, if the carrier tape is short and the end of the carrier tape is already extended to the front side of the first loading drive unit 851 and the second loading drive unit 852, the automatic ejection operation cannot be performed. In this case, the multi-feeder device 8 is removed from the component mounter 1, and the short carrier tape is manually collected outside the machine.

  In the next step S9, the control device 6 of the component mounter 1 guides and displays on the display unit that the new component which is not mounted on the board K of the current board type and is mounted on the board K of the next board type is to be replenished. .. In the first step S9, the control device 6 refers to the feeder serving list 12 shown in FIG. 5 and recognizes that the unique part D corresponds to a new part. Therefore, the control device 6 guides and displays that the unique part D is to be supplied to the first multi-feeder device 8.

  In the next step S10, the operator supplies new parts to be mounted on the board K of the next board type according to the guidance display. In the first step S10, the worker sets the tape reel 822, around which the second carrier tape 8T2 holding the unique component D is wound, on the rear side of the first multi-feeder device 8.

  Next, the operator inserts the tip of the carrier tape 8T2 from the second insertion port 842 to the second loading position sensor 862. As a result, the second loading position sensor 862 detects the insertion of the tip of the carrier tape 8T2. At this time, the second loading drive unit 852 initially holds the carrier tape 8T2 with the sprocket engaged with the carrier tape 8T2. Then, the feeder control unit 89 drives the second loading drive unit 852 to feed out the initially held carrier tape 8T2. Then, the second standby position sensor 864 detects the arrival of the tip of the carrier tape 8T2 at a certain point in time, and the feeder control unit 89 stops the second loading drive unit 852.

  The component replenishment work described above can be performed at any time while the multi-feeder device 8 is supplying the component B. The loading operation of the second carrier tape 8T2 holding the unique component D to the standby position is performed in parallel with the component feeding operation in which the first carrier tape 8T1 holding the component B is pitch-fed to the feeding position 83. It is done automatically. According to this, the preparation of the unique component D to be mounted on the board K of the second board type is completed at the time when the board K of the first board type is being produced.

  After that, when the production of the substrate K of the first substrate type which is the current substrate type is completed in step S11, the process returns to step S4. In step S4 of the second time, the control device 6 of the mounter 1 changes and sets the board type to be produced from the first board type to the second board type in accordance with a command from the production management system 10. After that, the second substrate type becomes the substrate K currently being produced (current substrate type), and the third substrate type becomes the substrate K (next substrate type) produced next.

  In the second step S5, the component mounter 1 starts the production of the board K of the second board type. In the second step S6, the component mounter 1 operates the tape cutter 91. As a result, the carrier tape 7T holding the common component A of the single feeder device 7 is cut. Similarly, the first carrier tape 8T1 holding the component B of the first multi-feeder device 8 and the first carrier tape 8T1 holding the component C of the second multi-feeder device 8 are cut.

  In the second step S7, the components to be mounted on the second board type which is the current board type are automatically switched. At this time, in the first multi-feeder device 8, the unique component D to be mounted on the board K of the second board type has already been prepared in the first step S10. Therefore, substantially, only the setting change for supplying the unique component D instead of the component B is performed inside the feeder control unit 89. With the above, the setup change operation is completed, and the production of the substrate K of the second substrate type is actually started.

  In step S9 of the second time, the control device 6 of the mounter 1 mounts the unique component E as the second component that is not mounted on the board K of the second board type and is mounted on the board K of the third board type. The multi-feeder device 8 is displayed with a guide to the effect that it will be replenished. In step S10 for the second time, the worker sets the tape reel 822, around which the second carrier tape 8T2 holding the unique component E is wound, on the rear side of the second multi-feeder device 8 according to the guidance display. .. Next, the operator inserts the tip of the carrier tape 8T2 from the second insertion port 842 to the second loading position sensor 862. Then, as in the case of the first multi-feeder device 8, the second carrier tape 8T2 holding the unique component E is automatically loaded to the standby position.

  The loading operation of the second carrier tape 8T2 holding the unique component E to the standby position is automatically performed in parallel with the component feeding operation in which the first carrier tape 8T1 holding the component C is pitch-fed to the feeding position 83. Done. According to this, the preparation of the unique component E to be mounted on the board K of the third board type is completed at the time when the board K of the second board type is being produced.

  In the present embodiment, the feeder serving list 12A shown in FIG. 6 can be used. FIG. 6 is a diagram showing a modified example of the feeder serving list 12A. In this modification, the slot number. The carrier tape 7T holding the common part A is assigned to the single feeder device 7 installed in the No. 1 unit. The first carrier tape 8T1 holding the component B and the second carrier tape 8T2 holding the unique component E are assigned to the first multi-feeder device 8. Furthermore, the first carrier tape 8T1 holding the component C and the second carrier tape 8T2 holding the unique component D are assigned to the second multi-feeder device 8.

  In the case of the feeder serving list 12A shown in FIG. 6, when the substrate K of the second substrate type is produced, the first multi-feeder device 8 is stopped. Then, the common component A is supplied from the single feeder device 7, and the component C and the unique component D are supplied from the second multi-feeder device 8. At this time, the second multi-feeder device 8 automatically and alternately selects the first carrier tape 8T1 holding the component C and the second carrier tape 8T2 holding the unique component D and feeds it to the supply position 83. ..

  More specifically, when the second multi-feeder device 8 is prepared, the tip of the first carrier tape 8T1 and the tip of the second carrier tape 8T2 are both held at the standby position. Then, when the component C is supplied, the first carrier tape 8T1 is fed to the supply position 83, and the second carrier tape 8T2 remains at the standby position. Next, when the unique component D is supplied, the first carrier tape 8T1 is pulled back, and it is confirmed by the first standby position sensor 863 that it has been pulled back to the standby position. Then, the second carrier tape 8T2 is delivered to the supply position 83. Next, when the component C is supplied again, the second carrier tape 8T2 is pulled back, and it is confirmed by the second standby position sensor 864 that the second carrier tape 8T2 has been pulled back to the standby position. Then, the first carrier tape 8T1 is again fed to the supply position 83. Hereinafter, similarly, the first carrier tape 8T1 and the second carrier tape 8T2 are selectively delivered from the standby position to the supply position 83, and this operation is repeated.

  In the case of the feeder serving list 12A shown in FIG. 6, when the substrate K of the third substrate type is produced, the slot number. The second multi-feeder device 8 mounted on the No. 3 is stopped. Therefore, in parallel with the production operation of the board K of the third board type, new components to be mounted on the board K of the board type 4 can be prepared in the second multi-feeder device 8. Further, the second multi-feeder device 8 can be removed from the component mounter 1 or can be re-installed during the production operation of the substrate K of the third substrate type.

(4. Aspects and Effects of Multi-Feeder Device 8 of Embodiment)
The multi-feeder device 8 according to the embodiment rotates in the normal direction, and rotates in the normal direction together with the first loading drive unit 851 that allows the first carrier tape 8T1 inserted in the first insertion opening 841 to be fed to the supply position 83. By doing so, the forward and reverse rotations of the second loading drive unit 852 and the first loading drive unit 851 that allow the second carrier tape 8T2 inserted in the second insertion port 842 to be extended to the supply position 83 are controlled. , A feeder control unit 89 for feeding out the first carrier tape 8T1 to the supply position 83 and pulling back the first carrier tape 8T1 when the second carrier tape 8T2 is used.

  According to this, the multi-feeder device 8 performs the efficient operation of preparing the peculiar component D of the next production type in advance in parallel with the supply of the component B of the current production type. The time required for switching when switching types is shortened. On the other hand, the operator can load the carrier tape 8T2 for the next production at any time while the multi-feeder device 8 is supplying the component B of the current production type, so that the degree of freedom of the setup change work is high. large. These two points improve the production efficiency of the substrate K.

  Further, the multi-feeder device 8 automatically feeds the initially held carrier tape 8T2 for the next production to the standby position. According to this, when the type of the board K to be produced is switched, only the setting change for supplying the unique component D instead of the component B is performed, so that the time required for switching is significantly shortened and the operator is required to switch at the time of switching. You don't have to be present.

  Further, the multi-feeder device 8 automatically pulls back the unused carrier tapes (8T1, 8T2), and the carrier tapes (8T1, 8T2) that are no longer used when the multi-feeder device 8 is mounted on the component mounter 1 are removed. ) Can be discharged. According to this, the production operation of the substrate K is not interrupted by the replacement work of the carrier tapes (8T1, 8T2), and the replacement work of the carrier tapes (8T1, 8T2) is facilitated.

  Further, in the method for producing a substrate, two carrier tapes (8T1, 8T2) each having cavity parts for holding components formed in line are held individually so as to be capable of being drawn out and pulled back, and one of the carrier tapes ( The component mounter 1 is equipped with a multi-feeder device 8 that selectively feeds 8T1, 8T2) from the standby position to the feeding position 83 and a single feeder device 7 that can feed one carrier tape 7T to the feeding position 73. , A plurality of types of components are respectively supplied to the supply positions (83, 73), and the components are collected at the respective supply positions (83, 73) by using the component transfer device 4 equipped in the component mounter 1. The production operation of mounting the board K conveyed to the mounting position of the mounting machine 1 is repeated, and the kinds of the board K (first board type, second board type, ..., A method of producing a board K by switching board types), in which a carrier tape holding a common component A mounted on a large number of boards K is preferentially assigned to a single feeder device 7 and a small number of boards K The carrier tape holding the unique parts D and E attached to the multi-feeder device 8 is preferentially assigned to the multi-feeder device 8.

  According to this, it is possible to effectively use the multi-feeder device 8 and supply the predetermined types of components A to E with a small number of slots.

  Further, two carrier tapes (8T1, 8T2) each having a cavity portion for holding components arranged in line are held so that they can be individually drawn out and pulled back, and one of the carrier tapes (8T1, 8T2) is selected. The component mounter 1 is equipped with the multi-feeder device 8 that is fed from the standby position to the supply position 83, the component is supplied to the supply position 83, and the component transfer device 4 provided in the component mounter 1 is used to supply the component. The multi-feeder device 8 which repeats the production operation of picking up the component at the position 83 and mounting it on the substrate K transported to the mounting position of the component mounting machine 1 for producing the second substrate type in the feeder serving list 12A of FIG. At times, the second multi-feeder device 8 automatically loads the first carrier tape 8T1 holding the component C and the second carrier tape 8T2 holding the unique component D. In select alternately feeding to the supply position 83.

  Similarly, during the production of the third substrate type in the serving list 12A of FIG. 6, the first multi-feeder device 8 uses the first carrier tape 8T1 holding the component B and the second carrier tape holding the unique component E. The tapes 8T2 are automatically and alternately selected and delivered to the supply position 83.

  According to these, since the number of types of components that can be supplied can be increased by using the multi-feeder device 8 as compared with the case where only the conventional single feeder device 7 is used, the number of types of boards K that can be produced can be increased. On the other hand, when a plurality of component mounters 1 are arranged in a row to form a component mounting line, by using the multi-feeder device 8, even if the number of mounted component mounters 1 is reduced, the number of components that can be supplied is reduced. The number of types can be secured.

(5. Application and modification of embodiment)
In addition, although the case where the single feeder device 7 and the multi-feeder device 8 are used in combination has been described in the embodiment, the present invention is not limited to this. That is, the component supply device 3 may be composed of only a plurality of multi-feeder devices 8. Further, when the slack when the carrier tape (8T1, 8T2) is discharged is allowed, the first winding drive unit 855 and the second winding drive unit 856 can be omitted. The present embodiment can be applied and modified in various other ways.

1: Component mounter 2: Substrate transport device 3: Component supply device 4: Component transfer device 5: Component camera 6: Control device 7: Single feeder device 72: Tape reel 73: Supply position 7T: Carrier tape 8: Multi feeder Devices 821, 822: Tape reel 83: Supply position 841: First insertion port 842: Second insertion port 851: First loading drive unit 852: Second loading drive unit 853: Feeding drive unit 861: First loading position sensor ( First loading position) 862: Second loading position sensor (second loading position) 863: First standby position sensor (first standby position) 864: Second standby position sensor (second standby position) 89: Feeder controller 8T1 : First carrier tape 8T2: Second carrier tape 91: Tape cutter 10: Production management system 12, 12A: Feeder serving list

Claims (7)

A first loading drive unit capable of feeding out the first carrier tape inserted into the first insertion port to the supply position by rotating in the forward direction;
A second loading drive unit capable of feeding the second carrier tape inserted into the second insertion opening to the supply position by rotating in the normal direction;
By controlling the forward rotation and the reverse rotation of the first loading drive unit, the first carrier tape is fed out to the supply position, and when the second carrier tape is used, the first carrier tape is pulled back. A feeder control unit that
Multi-feeder device equipped with.   The feeder control unit controls the forward rotation and the reverse rotation of the second loading drive unit to feed the second carrier tape to the supply position, and when the first carrier tape is no longer used. The multi-feeder device according to claim 1, wherein the multi-feeder device is pulled back to a loading position, and is made to stand by at a waiting position when the first carrier tape is used again.   Further comprising a feeding drive unit disposed below the supply position, which cooperates with a selected one of the first loading drive unit and the second loading drive unit under the control of the feeder control unit. The multi-feeder device according to claim 1.   The multi-feeder device according to any one of claims 1 to 3, further comprising a tape cutter that is disposed on the front side of the supply position and that cuts the carrier tape at least before being pulled back.   The multi-feeder device according to any one of claims 1 to 4, wherein the first carrier tape and the second carrier tape have different types of components to be held.   The multi-feeder device according to claim 5, wherein the first carrier tape is used for a substrate of a current substrate type, and the second carrier tape is used for the substrate of a next substrate type. The multi-feeder device according to claim 5, wherein the first carrier tape and the second carrier tape are used for the substrate of the current substrate type.

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