JP7164922B2 - Carrier tape loading method - Google Patents

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 includes solder printers, component mounters, reflow machines, board inspection machines, and the like. It is common to connect these facilities to form a circuit board production line. Among them, the component mounter includes a substrate transfer device, a component supply device, a component transfer device, and a control device. As a representative example of a component supply device, there is a feeder device of a system that feeds out carrier tapes each holding components in cavities formed in the tape length direction. In recent years, a multi-feeder device has been developed that selectively feeds out two carrier tapes to a supply position to supply components.

The component tape feeder of Patent Document 1 includes two input modules for advancing separate component tapes, one component exposing module for exposing the components contained in the component tapes to be advanced, and the components being advanced. an output module for advancing the tape from the feeder. According to this, while a component contained in a certain component tape is conveyed and supplied to a component placement machine (a component transfer device), another component contained in another component tape can be made to stand by. It is said that it can be done.

Japanese Patent No. 4856761

By the way, since the multi-feeder apparatus including the component tape feeder of Patent Document 1 has the advantage of increasing the number of types of components to be supplied, it is possible to produce substrates with a large number of types of components. When substrates are produced while switching the substrate type (board type) based on the production plan, the substrate production efficiency fluctuates depending on the operation mode and setup change method of the multi-feeder apparatus. However, Patent Literature 1 does not disclose the efficient operation mode of the multi-feeder apparatus when producing boards while switching the board type, or specific contents such as setup change work performed by workers.

An object of the present specification is to provide a multi-feeder apparatus capable of improving production efficiency by streamlining the setup change method.

This specification provides a first step of feeding a first carrier tape from a first standby position to a supply position, and pulling back the first carrier tape to the first standby position when using a second carrier tape. a second step, a third step of detecting presence/absence of the first carrier tape at the standby position by a first standby position sensor, and a fourth step of feeding the second carrier tape from the second standby position to the supply position. a fifth step of pulling back the second carrier tape to the second standby position when the first carrier tape is used; and a sixth step of detecting by a sensor .

The multi-feeder device disclosed in the present specification feeds one carrier tape for current production holding the parts of the current production type to supply the parts of the current production type, and holds the parts of the next production type for the next production. When one carrier tape is loaded, it is initially held and one of the carrier tapes is automatically pulled back. According to this, the multi-feeder device performs an efficient operation of preparing in advance the parts of the next production type in parallel with supplying the parts of the current production type. The time required for switching is shortened. On the other hand, since the operator can load the carrier tape for the next production at any time while the multi-feeder device is supplying the parts of the current production type, there is a high degree of freedom in the setup change work. Further, the production operation of substrates is not interrupted by the replacement work of the unused carrier tape, and the replacement work of the carrier tape is facilitated. As a result, the production efficiency of substrates is improved.

1 is a plan view of a component mounter using the multi-feeder device of the embodiment; FIG. FIG. 2 is a perspective view schematically explaining the configuration of the multi-feeder device; FIG. 3 is a block diagram showing the control configuration of the multi-feeder device; It is a figure of the processing flow which illustrates the production method of the board|substrate using the multi-feeder apparatus of embodiment. FIG. 4 is a diagram for explaining multi-job line balancing processing performed by a production management system; It is the figure which showed the modification of the feeder serving list.

(1. Configuration of component mounter 1)
First, the configuration of a 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 of FIG. 1 is the X-axis direction along which the substrate K is loaded and unloaded, and the Y-axis direction is the direction from the lower side of the page to the upper side of the page. The component mounter 1 is constructed by assembling a substrate conveying 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 performs a predetermined operation.

The board transfer device 2 carries the board K into the mounting position, positions it, and carries it out. The substrate transfer device 2 consists of a transfer unit 25 and a backup unit 26 . The transport unit 25 is composed of a pair of guide rails (21, 22), a pair of conveyor belts, and the like. A pair of guide rails (21, 22) extend in the conveying 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. A pair of endless annular conveyor belts (not shown) are arranged side by side inside the pair of guide rails (21, 22) facing each other. The pair of conveyor belts rotates with both edges of the board K placed thereon, and carries the board K into and out of a mounting position set in the center of the machine table 9 . The backup unit 26 is arranged below the mounting position. The backup unit 26 pushes up the substrate K, clamps it in a horizontal posture, and positions 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 is composed of a pallet table 31 and a plurality of feeder devices. The pallet table 31 has a substantially rectangular plate shape and is detachably mounted on the upper surface of the machine table 9 toward the rear. A plurality of thin feeder devices are arranged side by side in a plurality of slots carved in parallel on the upper surface of the pallet table 31 . Seven single feeder devices 7 and two multi-feeder devices 8 are illustrated in FIG. 1, and in practice, more feeder devices are arranged in a row.

The single feeder device 7 is composed of a body portion 71, a tape reel 72 set replaceably in the rear portion of the body portion 71, and the like. A supply position 73 is set at the upper portion near the front end of the body portion 71 . A carrier tape 7T is wound around the tape reel 72 and held. The carrier tape 7T consists of a bottom tape in which cavities for holding components are formed at a constant pitch, and a cover tape that is attached to the bottom tape and covers the cavities. The single feeder device 7 feeds out the carrier tape 7T by a constant pitch and sequentially supplies the components to the supply position 73 .

The multi-feeder device 8 is composed of a body portion 81 and two tape reels (821, 822) exchangeably set in the rear portion of the body portion 81, and the like. 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 at the upper portion near the front end of the body portion 81 . A detailed configuration of the multi-feeder device 8 will be described later.

The multi-feeder device 8 and the single feeder device 7 have interchangeability of tape reels (72, 821, 822) and carrier tapes (7T, 8T1, 8T2). The multi-feeder device 8 and the single feeder device 7 can change slot positions and can be exchanged with other feeder devices. Furthermore, the entire component supply device 3 is also replaceable. In addition, the multi-feeder device 8 and the single feeder device 7 may have separate reel loading units for setting the tape reels (72, 821, 822).

The component transfer device 4 is an XY robot type device capable of horizontal movement 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. A pair of Y-axis rails (41, 42) are arranged near 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). A nozzle tool 45 is exchangeably held on the mounting head 44 . The nozzle tool 45 has one or a plurality of suction nozzles 46 that suck and pick up components using negative pressure. The suction nozzle 46 moves up and down to pick up a component from the supply position 73 of the single feeder device 7 or the supply position 83 of the multi-feeder device 8, and attach it to the substrate K at the mounting position. A substrate camera 47 is provided on the mounting head 44 alongside the nozzle tool 45 . The board camera 47 picks up an image of the position reference mark attached to the board K to detect the correct position of the board K. FIG.

The component camera 5 is provided facing upward on the upper surface of the machine stand 9 between the board transfer device 2 and the component supply device 3 . The component camera 5 captures 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 board K. When an error in the pickup posture of the component, a deviation in the rotation angle, or the like of the component is determined from the imaging data of the component camera 5, the control device 6 finely adjusts the component mounting operation as necessary. control to discard

The control device 6 is assembled to the machine base 9, and its arrangement position is not particularly limited. The control device 6 is a computer device having a CPU and operated by software. The control device 6 includes an input section for setting inputs by an operator, a display section for displaying information to the operator, and a storage section for storing various programs and data. The control device 6 controls the component mounting operation based on the imaging data of the substrate camera 47 and the component camera 5, the detection data of sensors (not shown), and the like. In addition, the control device 6 sequentially collects and updates operation status data such as the number of substrates K that have been produced, the mounting time required for component mounting, and the number of occurrences of component pickup errors. Furthermore, the control device 6 is connected for communication with a production control system 10, which will be described later.

(2. Configuration of multi-feeder device 8 of embodiment)
FIG. 2 is a perspective view schematically explaining 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 drawn out from the tape reels (821, 822) are indicated by broken lines. FIG. 3 is a block diagram showing the control configuration of the multi-feeder device 8. As shown in FIG. In FIGS. 2 and 3, the drives are schematically indicated by black and dashed circles and the sensors by white circles.

The multi-feeder device 8 has a first insertion opening 841 near the middle height of the rear end of the body portion 81 and a second insertion opening 842 above the first insertion opening 841 . The leading end of the first carrier tape 8T1 pulled out from the tape reel 821 on the front side is inserted into the first insertion port 841 . The leading end of the second carrier tape 8T2 pulled out from the rear tape reel 822 and passing through the front tape reel 821 is inserted into the second insertion opening 842 .

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

A first loading drive section 851 is arranged at a position near the first insertion port 841 of the first delivery rail 843 . A first loading position sensor 861 is arranged at a first loading position on the front side of the first loading drive section 851 . Similarly, a second loading drive section 852 is arranged at a position near the second insertion port 842 of the second delivery rail. A second loading position sensor 862 is provided at a second loading position on the front side of the second loading drive section 852 .

A second standby position sensor 864 is arranged at a second standby position near the tip of the second delivery rail. A 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 delivery rail 843 . Furthermore, a delivery drive unit 853 is arranged below the supply position 83 . On the other hand, a first take-up drive section 855 and a second take-up drive section 856 are arranged on the back side of the bearings of the tape reels (821, 822) not visible in FIG.

The first loading drive section 851, the second loading drive section 852, and the delivery drive section 853 are configured including a step motor, a speed reduction mechanism, and a sprocket. The step motor rotates forward and backward according to control from the feeder control section 89 . The deceleration mechanism decelerates the rotation of the step motor and transmits it to the sprocket. The sprockets are journalled on the body portion 81 and engage sprocket holes formed in the side edges of the carrier tapes (8T1, 8T2). The sprocket is rotationally driven by a step motor to feed and retract the carrier tapes (8T1, 8T2).

The first winding driving section 855 and the second winding driving section 856 reversely drive the tape reels (821, 822) under the control of the feeder control section 89 to wind the carrier tapes (8T1, 8T2). I do. The first take-up drive unit 855 and the second take-up drive unit 856 allow the tape reels (821, 822) to rotate freely except during take-up so as not to hinder the unwinding of the carrier tapes (8T1, 8T2). ing.

The first loading position sensor 861 detects the presence or absence of the first carrier tape 8T1 at the first loading position. The first standby position sensor 863 detects the presence or absence of the first carrier tape 8T1 at the first standby position. Similarly, the second loading position sensor 862 detects the presence or absence of the second carrier tape 8T2 at the second loading position. A 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 provided on the upper surface of the main body 81 near the rear. The operation panel 87 has display lamps for displaying the state of the multi-feeder device 8 . Further, the operation panel 87 has setting switches for setting feeding conditions such as the feeding speed and feeding pitch of the carrier tapes (8T1, 8T2).

The feeder control section 89 is attached to the main body section 81, and its arrangement position is not particularly limited. The feeder control unit 89 is a computer device having a CPU and operated by software. As shown in FIG. 3, the feeder controller 89 receives detection signals from four sensors (861-864). In addition, the feeder control section 89 controls five driving sections (851, 852, 853, 855, 856) to control feeding, pulling back, and pitch feeding of the carrier tapes (8T1, 8T2). Furthermore, the feeder control unit 89 exchanges information with the connected operation panel 87 . The feeder control unit 89 is also connected to the control device 6 for communication, and controls the component supply operation in cooperation with the control device 6 .

A tape cutter 91 supported by the 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 tapes (7T, 8T1, 8T2) of the feeder devices (7, 8) are fed forward from the supply positions (73, 83) and pass 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 portions of the carrier tapes (7T, 8T1, 8T2) that have been fed forward from the tape cutter 91. FIG.

(3. Substrate production method)
Next, a substrate production method using the multi-feeder device 8 will be described. FIG. 4 is a process flow diagram illustrating a method of producing a substrate. This production method proceeds through cooperation between the mounter 1 and the production control system 10, and also requires work by workers. The production control system 10 is a computer system having a storage device 11, and can be accessed by workers.

At step S1 in FIG. 4, the worker inputs the type (board type) of the board K to be produced based on the production plan to the production management system 10. FIG. In the example of FIG. 4, the operator first produces the board K of the first board type, secondly produces the board K of the second board type, and finally produces the board K of the Nth board 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, the production information has already been stored in the storage device 11, so the input operation is not required again.

In the next step S2, the production control system 10 performs multi-job line balance processing, and stores the processing result in the storage device 11 as the feeder distribution list 12. FIG. Multi-job line balance is a simulation technique for optimizing a production method when producing boards K while switching board types based on a production plan. The multi-job line balance targets a component mounting line in which a plurality of component mounters are arranged in line, but in this embodiment, one component mounter 1 is assumed as a simple example. The optimization simulation includes processing to reduce the number of exchanges of the feeder devices 7 and 8 when switching the substrate type, processing to optimize the arrangement order of the feeder devices 7 and 8 to shorten the movement distance of the mounting head 44, and the like. is included.

In the process of multi-job line balance, the production control system 10 preferentially allocates carrier tapes holding common parts to be mounted on many kinds of substrates K to the single feeder device 7, Carrier tapes holding unique parts to be assigned to the multi-feeder device 8 are preferentially assigned.

Hereinafter, multi-job line balance in the case of producing substrates K of the first to third substrate types using one single feeder device 7 and two multi-feeder devices 8 will be described. FIG. 5 is a diagram for explaining the multi-job line balancing process performed by the production management system 10. As shown in FIG. In FIG. 5, the upper table represents the initial production information, and the lower table represents the feeder serving list 12 of the processing results.

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

Therefore, the component A is the common component that is mounted on the board K, which has the largest number of types. The production management system 10 preferentially allocates the carrier tape holding the common part A to the single feeder device 7 . Also, the unique parts mounted on the board K, which is the smallest in number, are the parts D and E. FIG. The production control system 10 preferentially allocates the carrier tape holding the unique part D and the carrier tape holding the unique part 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 control 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, an allocation of the parts shown in the feeder serving list 12 is made. That is, the slot No. A carrier tape 7T holding a common part A is assigned to the single feeder device 7 installed in the 1. Also, the slot No. 2, the first carrier tape 8T1 holding the part B and the second carrier tape 8T2 holding the specific part D are assigned to the first multi-feeder device 8 installed in No. 2. Furthermore, slot No. A first carrier tape 8T1 holding the part C and a second carrier tape 8T2 holding the specific part E are assigned to the second multi-feeder device 8 installed in the 3.

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

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

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

Only for the first substrate type at the beginning, the operator refers to the feeder arrangement list 12 and performs setup work for the feeder device before starting production. That is, the operator loads the carrier tape 7T holding the common parts A into the single feeder device 7. As shown in FIG. Further, the operator loads the first carrier tape 8T1 holding the component B into the first multi-feeder device 8, and loads the first carrier tape 8T1 holding the component C into the second multi-feeder device 8. do. In the multi-feeder device 8, the tape reel 821 on which the first carrier tape 8T1 is wound is set on the front side, and the tape reel 822 on which the second carrier tape 8T2 is wound is set on the rear side. described as.

When loading the first carrier tape 8T1 into the multi-feeder device 8, the operator inserts the leading end of the carrier tape 8T1 from the first insertion opening 841 to the first loading position sensor 861. As shown in FIG. Thereby, the first loading position sensor 861 detects the insertion of the leading end 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.

Subsequently, the feeder control section 89 drives the first loading drive section 851 to automatically feed out the initially held carrier tape 8T1. At some point, the first standby position sensor 863 detects the arrival of the leading edge of the carrier tape 8T1, so the feeder control section 89 stops the first loading drive section 851. FIG. Thereby, the multi-feeder device 8 can automatically feed out the first carrier tape 8T1 to the standby position.

At step S5, the mounter 1 starts to produce the board K of the current board type, but the processing at steps S6 and S7 corresponds to a changeover operation. In step S6, the mounter 1 operates the tape cutter 91 to cut each carrier tape (7T, 8T1, 8T2). However, for the first substrate type, none of the carrier tapes (7T, 8T1, 8T2) has been fed out to the tape cutter 91, so 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, for the first board type, common parts A, B, and C are prepared so that they can be supplied. Specifically, the single feeder device 7 lets out the carrier tape 7T to the supply position 73 and enables the supply of the common component A. As shown in FIG. Also, in the two multi-feeder devices 8, the first loading drive section 851 feeds out the first carrier tape 8T1 from the standby position to the supply position 83. As shown in FIG. At this time, the sprocket of the delivery driving portion 853 also engages with the carrier tape 8T1. As a result, the first carrier tape 8T1 can be pitch-fed by cooperation between the first loading drive section 851 and the delivery drive section 853. FIG.

The changeover operation is completed as described above, and the actual production of the board K of the current board type is started. That is, the production operation of supplying components by the single feeder device 7 and two multi-feeder devices 8 and picking and mounting components by the component transfer device 4 is repeated, and the substrates K of the current substrate type are produced sequentially. . The processes from step S8 to step S10 are performed in parallel with the production operation of the board K of the current board type. In the processing of steps S8 to S10, the feeder catering list 12 is referred to.

In step S8, the multi-feeder device 8 automatically ejects unnecessary carrier tapes that are no longer used. A carrier tape that is no longer used means a carrier tape that holds components that have been supplied to a board type whose production has been completed and that are not mounted on the current board type or the next board type or later. The control device 6 determines whether the carrier tape is unnecessary. In this embodiment, the process of step S8 is unnecessary, and the discharge operation is actually performed as follows.

That is, the delivery driving portion 853 engaged with the unused carrier tape and one of the first loading driving portion 851 and the second loading driving portion 852 are reversed to pull back the carrier tape. Further, one of the first winding driving section 855 and the second winding driving section 856 reversely drives the tape reel (821 or 822) to wind the carrier tape. As a result, the leading end of the carrier tape that is no longer used is ejected rearward from the first insertion opening 841 or the second insertion opening 842 . Therefore, the operator can remove the tape reel (821 or 822) on which the unused carrier tape is wound without interrupting the production operation of the mounter 1. FIG.

It should be noted that the operation of ejecting the carrier tape that is no longer used can also be performed by a command from the operation panel 87. FIG. Also, if the carrier tape is short and the terminal end thereof has already been extended to the front side of the first loading drive section 851 and the second loading drive section 852, the automatic ejection operation cannot be performed. In this case, the multi-feeder device 8 is removed from the component mounting machine 1, and the short carrier tape is manually recovered outside the machine.

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

In the next step S10, the operator replenishes new components to be mounted on the board K of the next board type according to the guide display. In step S10 of the first time, the operator 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. As shown in FIG.

Next, the operator inserts the tip of this carrier tape 8T2 from the second insertion opening 842 to the second loading position sensor 862. As shown in FIG. Thereby, the second loading position sensor 862 detects insertion of the leading end of the carrier tape 8T2. At this time, the second loading drive section 852 is in a state where the sprocket is engaged with the carrier tape 8T2, and initially holds the carrier tape 8T2. Subsequently, the feeder control section 89 drives the second loading drive section 852 to let out the initially held carrier tape 8T2. At some point, the second standby position sensor 864 detects the arrival of the leading edge of the carrier tape 8T2, so the feeder control section 89 stops the second loading drive section 852. FIG.

The component replenishment work described above can be performed at any time while the multi-feeder device 8 is supplying the component B. FIG. The loading operation of the second carrier tape 8T2 holding the unique component D up to the standby position is parallel to the component supply operation in which the first carrier tape 8T1 holding the component B is pitch-fed to the supply position 83. 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 point where the board K of the first board type is being produced.

After that, in step S11, when the production of the board K of the first board type, which is the current board type, is completed, the process returns to step S4. In the second step S4, the controller 6 of the mounter 1 changes the type of board to be produced from the first board type to the second board type according to the command from the production management system 10. FIG. Thereafter, the second board type becomes the board K currently being produced (current board type), and the third board type becomes the board K to be produced next (next board type).

In step S5 for the second time, the mounter 1 starts producing the board K of the second board type. In step S<b>6 for the second time, the mounter 1 operates the tape cutter 91 . As a result, the carrier tape 7T holding the common parts 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 to the effect that the specific part D is supplied instead of the part B is performed inside the feeder control unit 89 . Thus, the changeover operation is completed, and the actual production of the board K of the second board type is started.

In step S9 for the second time, the controller 6 of the mounter 1 selects the unique component E as a new component that is not mounted on the board K of the second board type but is mounted on the board K of the third board type. A guidance display indicating that the multi-feeder device 8 is to be replenished is displayed. In step S10 for the second time, the operator sets the tape reel 822 around which the second carrier tape 8T2 holding the unique part 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 this carrier tape 8T2 from the second insertion opening 842 to the second loading position sensor 862. As shown in FIG. 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 up 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 supply operation in which the first carrier tape 8T1 holding the component C is pitch-fed to the supply 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 point in time when the board K of the second board type is being produced.

In addition, in this embodiment, the feeder catering list 12A shown in FIG. 6 can be used. FIG. 6 is a diagram showing a modification of the feeder catering list 12A. In this modification, the slot No. A carrier tape 7T holding a common part A is assigned to the single feeder device 7 installed in the 1. Also, the first carrier tape 8T1 holding the component B and the second carrier tape 8T2 holding the specific component E are assigned to the first multi-feeder device 8. FIG. 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. FIG.

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

Specifically, when the second multi-feeder device 8 is prepared, both the leading edge of the first carrier tape 8T1 and the leading edge of the second carrier tape 8T2 are held at the standby position. Then, when supplying the component C, the first carrier tape 8T1 is let out to the supply position 83, and the second carrier tape 8T2 remains at the standby position. Next, when supplying the unique part D, the first carrier tape 8T1 is pulled back, and the first standby position sensor 863 confirms that it has been pulled back to the standby position. Then, the second carrier tape 8T2 is let out to the supply position 83. As shown in FIG. Next, when the component C is supplied again, the second carrier tape 8T2 is pulled back, and the second standby position sensor 864 confirms that it has been pulled back to the standby position. Then, the first carrier tape 8T1 is let out to the supply position 83 again. Thereafter, similarly, the first carrier tape 8T1 and the second carrier tape 8T2 are selectively let out 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 producing the board K of the third board type, slot No. The second multi-feeder device 8 equipped with 3 is deactivated. Therefore, new components to be mounted on the board K of the board type 4 can be prepared in the second multi-feeder device 8 in parallel with the production operation of the board K of the third board type. Furthermore, the second multi-feeder device 8 can be removed from the component mounter 1 and re-equipped during the production operation of the board K of the third board type.

(4. Aspects and effects of the multi-feeder device 8 of the embodiment)
The multi-feeder device 8 of the embodiment rotates in the forward direction with the first loading drive section 851 that allows the first carrier tape 8T1 inserted into the first insertion port 841 to be fed out to the supply position 83 by forward rotation. As a result, the forward and reverse rotations of the second loading drive section 852 and the first loading drive section 851, which allow the second carrier tape 8T2 inserted into the second insertion port 842 to be fed out to the supply position 83, are controlled. , and a feeder control unit 89 that feeds the first carrier tape 8T1 to the supply position 83 and pulls back the first carrier tape 8T1 when using the second carrier tape 8T2.

According to this, the multi-feeder device 8 performs an efficient operation of preparing in advance the specific component D of the next production type in parallel with supplying the component B of the current production type. The time required for switching when switching the type of is shortened. On the other hand, since the operator can load the carrier tape 8T2 for the next production at any time while the multi-feeder device 8 is supplying the part B of the current production type, the degree of freedom in the setup change operation is increased. big. Due to these two points, the production efficiency of the substrate K is improved.

Further, the multi-feeder device 8 automatically feeds out the initially held carrier tape 8T2 for the next production to the standby position. According to this, when switching the type of substrate K to be produced, only the setting change to supply the specific component D instead of the component B is performed, so the time required for switching is greatly shortened, and the operator can perform the switching. No need to meet.

Further, the multi-feeder device 8 automatically pulls back the unused carrier tapes (8T1, 8T2), and the unused carrier tapes (8T1, 8T2) are pulled back while the multi-feeder device 8 is mounted on the mounter 1. ) can be discharged. According to this, the production operation of the board 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 substrate production method, two carrier tapes (8T1, 8T2) having cavities for holding components formed in a row are individually held so as to be able to be extended and retracted, and one of the carrier tapes ( 8T1, 8T2) from a standby position to a supply position 83, and a single feeder device 7 capable of feeding one carrier tape 7T to the supply position 73. , a plurality of types of components are supplied to supply positions (83, 73), respectively, and components are collected at each supply position (83, 73) using a component transfer device 4 equipped in the component mounter 1, and the components are The production operation of mounting the board K transported to the mounting position of the mounter 1 is repeated, and the type of the board K (first board type, second board type, . . . , Nth board type) is switched based on the production plan. In this method, a carrier tape holding common parts A mounted on many types of boards K is preferentially assigned to the single feeder device 7, and a unique part mounted on a few types of boards K is assigned. The carrier tape holding the parts D and E is preferentially assigned to the multi-feeder device 8. - 特許庁

According to this, the multi-feeder device 8 can be effectively used to supply predetermined types of parts A to E with a small number of slots.

In addition, two carrier tapes (8T1, 8T2) in which cavities for holding components are formed in a row are individually held so as to be able to be extended and retracted, and one of the carrier tapes (8T1, 8T2) is selected. The component mounter 1 is equipped with a multi-feeder device 8 that feeds out the components from the stand-by position to the supply position 83, supplies the components to the supply position 83, and supplies the components using the component transfer device 4 equipped in the component mounter 1. A multi-feeder device 8 that repeats the production operation of picking up a component at a position 83 and mounting it on a board K conveyed to the mounting position of the component mounter 1, producing the second board type in the feeder placement list 12A of FIG. At times, the second multi-feeder device 8 automatically alternately selects the first carrier tape 8T1 holding the component C and the second carrier tape 8T2 holding the unique component D and feeds them to the supply position 83.

Similarly, during production of the third board type in the catering list 12A of FIG. The tape 8T2 is automatically alternately selected and delivered to the supply position 83. - 特許庁

According to these, by using the multi-feeder device 8, it is possible to increase the number of kinds of parts that can be supplied compared to the case where only the conventional single feeder device 7 is used, so that the number of kinds of substrates K that can be produced can be increased. On the other hand, when a plurality of component mounters 1 are arranged in line to form a component mounting line, the use of the multi-feeder device 8 reduces the number of components that can be supplied even if the number of component mounters 1 arranged in line is reduced. The number of types can be secured.

(5. Applications and Modifications of Embodiments)
In addition, although the case where the single feeder device 7 and the multi-feeder device 8 are used together has been described in the embodiment, the present invention is not limited to this. In other words, the component supply device 3 may be composed only of a plurality of multi-feeder devices 8 . Also, if the carrier tapes (8T1, 8T2) are permitted to be slack when discharged, the first winding driving section 855 and the second winding driving section 856 can be omitted. Various other applications and modifications are possible for this embodiment.

1: Component mounter 2: Substrate transfer 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 Device 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 control section 8T1 : First carrier tape 8T2: Second carrier tape 91: Tape cutter 10: Production control system 12, 12A: Feeder serving list

Claims (1)

a first step of feeding the first carrier tape from the first standby position to the supply position;
a second step of pulling back the first carrier tape to the first standby position when using the second carrier tape;
a third step of detecting presence/absence of the first carrier tape at the first standby position with a first standby position sensor ;
a fourth step of feeding the second carrier tape from the second standby position to the supply position;
a fifth step of pulling back the second carrier tape to the second standby position when using the first carrier tape;
a sixth step of detecting presence/absence of the second carrier tape at the second standby position by a second standby position sensor;
Carrier tape loading method including.

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