JP2021122069A - Carrier tape loading method - Google Patents

Abstract

To provide a multi-feeder device capable of improving the efficiency of a setup change method and improving the production efficiency.SOLUTION: A multi-feeder device includes a first loading drive unit that enables a first carrier tape inserted into a first insertion port to be fed out to a supply position by rotating in the forward direction, a second loading drive unit that enables a second carrier tape inserted into a second insertion port to be fed out to the supply position by rotating in the forward direction, and a feeder control unit that controls the forward rotation and reverse rotation of the first loading drive unit to feed the first carrier tape to the supply position, and pulls back the first carrier tape 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 parts.

Equipment for producing substrates on which a large number of components are mounted includes solder printing machines, component mounting machines, reflow machines, and board inspection machines. It has become common to connect these facilities to form a substrate production line. Of these, the component mounting machine 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 in which carrier tapes holding components are fed out into cavities formed side by side in the tape length direction. In recent years, a multi-feeder device has been developed in which two carrier tapes are selectively fed to a supply position to supply parts, and a technical example thereof is disclosed in Patent Document 1.

The component tape feeder of Patent Document 1 includes two input modules for advancing separate component tapes, one component exposure module for exposing the components contained in the advancing component tape, and an advancing component. It has an output module that advances the tape from the feeder. According to this, while the parts housed in one part tape are transported and supplied to the part arranging machine (part transfer device), another part housed in another part tape can be made to stand by. It is said that it can be done.

Japanese Patent No. 4856761

By the way, a multi-feeder device such as 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 a substrate having a large number of types of components can be produced. 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 producing a substrate while switching the substrate type and a setup change work performed by an operator.

The problem to be solved in the present specification is to provide a multi-feeder device capable of improving the efficiency of the setup change method and improving the production efficiency.

The present specification includes a first loading drive unit that enables the first carrier tape inserted into the first insertion slot to be fed out to a supply position by rotating forward, and a second insertion slot by rotating forward. The second loading drive unit that enables the inserted second carrier tape to be fed to the supply position and the forward rotation and reverse rotation of the first loading drive unit are controlled to move the first carrier tape to the supply position. Disclosed is a multi-feeder device including a feeder control unit for feeding back the first carrier tape and pulling back the first carrier tape when the second carrier tape is used.

In the multi-feeder apparatus disclosed in the present specification, one carrier tape for the current production that holds the parts of the current production type is fed out to supply the parts of the current production type, and the next production that holds the parts of the next production type. When the carrier tape for use 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 the parts of the next production type in advance in parallel with supplying the parts of the current production type, so that when switching the type of the substrate to be produced. The time required for switching is shortened. On the other hand, since the operator may load the carrier tape for the next production at an arbitrary time while the multi-feeder device is supplying the parts of the current production type, the degree of freedom of the setup change work is large. Further, the replacement work of the carrier tape that is no longer used does not interrupt the production operation of the substrate, and the replacement work of the carrier tape becomes easy. As a result, the production efficiency of the substrate is improved.

It is a top view of the component mounting machine which uses the multi-feeder device of embodiment. It is a perspective view schematically explaining the structure of the multi-feeder device. It is a block diagram which shows the control structure of a multi-feeder device. It is a figure of the processing flow which illustrates and explains the production method of the substrate using the multi-feeder apparatus of embodiment. It is a figure explaining the process of multi-job line balance performed by a production control system. It is a figure which showed the modification of the feeder serving list.

(1. Configuration of component mounting machine 1)
First, the configuration of the component mounting machine 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 the paper surface in FIG. 1 is the X-axis direction in which the substrate K is carried in and out, and the direction from the rear on the lower side of the paper surface to the front on the upper side of the paper surface is the Y-axis direction. The component mounting machine 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 the 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 of them performs a predetermined operation.

The board transfer device 2 carries the board K into the mounting position, positions it, and carries it out. The board transfer device 2 includes 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. The pair of guide rails (21, 22) extend across the center of the upper surface of the machine base 9 in the transport direction (X-axis direction), and are assembled 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 side by side. The pair of conveyor belts rotate in a state where both edges of the substrate K are placed, and the substrate K is carried in and out to the mounting position set in the central portion of the machine base 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 parts supply device 3 is composed of a pallet stand 31 and a plurality of feeder devices. The pallet base 31 has a substantially rectangular plate shape, and is detachably mounted on the rear side of the upper surface of the machine base 9. A plurality of thinly formed feeder devices are arranged side by side in a plurality of slots carved parallel to the upper surface of the pallet base 31. FIG. 1 illustrates seven single feeder devices 7 and two multi-feeder devices 8, and in reality, a larger number of feeder devices are arranged in a row.

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

The multi-feeder device 8 includes a main body 81 and two tape reels (821, 822) that are interchangeably set on the rear of the main body 81. Carrier tapes (8T1, 8T2) (shown in FIG. 2) are wound and held on the tape reels (821, 822), respectively. The supply position 83 is set in the upper part 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 performance of tape reels (72, 821, 822) and carrier tapes (7T, 8T1, 8T2). The multi-feeder device 8 and the single feeder device 7 are capable of changing the position of the slot and can be replaced with other feeder devices. Furthermore, the entire parts supply device 3 is also replaceable. Further, the multi-feeder device 8 and the single-feeder device 7 may have a separate reel loading section 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 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). The nozzle tool 45 is held interchangeably by the mounting head 44. The nozzle tool 45 has one or a plurality of suction nozzles 46 for sucking and collecting parts by using negative pressure. The suction nozzle 46 moves up and down to collect parts from the supply position 73 of the single feeder device 7 and the supply position 83 of the multi-feeder device 8 and mounts them on the substrate K at the mounting position. The board camera 47 is provided on the mounting head 44 along with the nozzle tool 45. The substrate camera 47 captures an image of a position reference mark attached to the substrate K to detect an accurate position of the substrate K.

The component camera 5 is provided upward on the upper surface of the machine base 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 substrate K. When the image pickup data of the component camera 5 reveals an error in the suction posture of the component, a deviation in the rotation angle, or the like, the control device 6 fine-tunes the component mounting operation as necessary, and if mounting is difficult, the component concerned Control to discard.

The control device 6 is assembled to the machine base 9, and the arrangement position thereof 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 setting input by the operator, a display unit for displaying information to the operator, a storage unit for storing various programs and data, and the like. The control device 6 controls the component mounting operation based on the imaging data of the board camera 47 and the component camera 5, the detection data of the sensor shown in the figure, and the like. Further, the control device 6 sequentially collects and updates operation status data such as the number of production of the board K whose production has been completed, the mounting time required for mounting the component, and the number of occurrences of the component suction error. Further, the control device 6 is communicatively connected to the production control 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 drawn from the tape reels (821, 822) are shown 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 drive unit is outlined with black circles and broken circles, and the sensor is outlined with white circles.

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

The first feeding rail 843 is arranged from the first insertion port 841 toward the front upper portion of the main body 81. A tape peeling mechanism 845 is arranged in front of the first feeding rail 843, and a 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 port 842 toward the front upper part of the main body 81. The tip of the second feeding rail is interrupted above the intermediate position of the first feeding rail 843.

The first loading drive unit 851 is arranged at a position close to the first insertion port 841 of the first feeding rail 843. The first loading position sensor 861 is arranged 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 close to the second insertion port 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 drive unit 852.

A second standby position sensor 864 is arranged at a second standby position near the tip of the second feed rail. The first standby position sensor 863 is arranged at the first standby position corresponding to the lower side of the second standby position sensor 864 of the first feed rail 843. Further, a feeding drive unit 853 is arranged below the supply position 83. On the other hand, the first take-up drive unit 855 and the second take-up drive unit 856 are arranged on the back surface side of the bearing portion of the tape reels (821, 822) which cannot be seen in FIG. 2, respectively.

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 forward and reverse according to the control from the feeder control unit 89. The reduction mechanism decelerates the rotation of the step motor and transmits it to the sprocket. The sprocket is bearing on the main body 81 and engages with the sprocket holes formed on the side edges of the carrier tapes (8T1, 8T2). The sprocket is rotationally driven by a step motor to feed and pull back the carrier tapes (8T1, 8T2).

The first take-up drive unit 855 and the second take-up drive unit 856 reversely drive the tape reels (821, 822) according to the control from the feeder control unit 89, and take up the carrier tape (8T1, 8T2). I do. The first take-up drive unit 855 and the second take-up drive unit 856 free the forward rotation of the tape reel (821, 822) except during winding so as not to hinder the feeding of the carrier tape (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 in 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. The second standby position sensor 864 detects the presence or absence of the second carrier tape 8T2 in the second standby position.

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

The feeder control unit 89 is assembled to the main body unit 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 each of the four sensors (861 to 864). Further, the feeder control unit 89 controls five drive units (851, 852, 853, 855, 856) to control 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 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 base 31, and is shared by all feeder devices (7, 8). The carrier tapes (7T, 8T1, 8T2) of each feeder device (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 in response to a command from the control device 6, and collectively cuts the portions of each carrier tape (7T, 8T1, 8T2) that have been extended to the front side of the tape cutter 91.

(3. Substrate production method)
Next, a method of producing a substrate using the multi-feeder device 8 will be described. FIG. 4 is a diagram of a processing flow illustrating a method of producing a substrate. This production method is advanced in collaboration with the component mounting machine 1 and the production management system 10, and also requires the work of an operator. The production control system 10 is a computer system provided with a storage device 11 and can be accessed by an operator.

In step S1 of FIG. 4, the operator inputs the type (board type) of the substrate K to be produced based on the production plan into the production control system 10. In the example of FIG. 4, the operator first 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 substrate K of the first to Nth substrate types. However, in the second and subsequent productions of the same substrate type, since the production information is already stored in the storage device 11, it is not necessary to perform the input operation again.

In the next step S2, the production control system 10 performs the multi-job line balance processing, and stores the processing result in the storage device 11 as the feeder serving 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 types 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 the present embodiment, one component mounting machine 1 is assumed as a simple example. The optimization simulation includes a process of reducing the number of replacements of the feeder devices 7 and 8 when switching the substrate type, a process of optimizing the arrangement order of the feeder devices 7 and 8, and a process of shortening the moving distance of the mounting head 44. Is included.

In the multi-job line balance process, the production control system 10 preferentially allocates a carrier tape holding common parts mounted on a large number of types of boards K to the single feeder device 7, and is mounted on a small number of types of boards K. The carrier tape holding the unique parts is preferentially assigned to the multi-feeder device 8.

Hereinafter, the multi-job line balance in the case where one single feeder device 7 and two multi-feeder devices 8 are used in combination to produce the substrate K of the first to third substrate types will be described. FIG. 5 is a diagram illustrating a process of multi-job line balance performed by the production control system 10. 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 parts to be mounted on each board K of the first to third board types are defined. 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. Parts A, B, and E are mounted on K. According to this, the component A is mounted on all three types of substrates. Further, the component B and the component C are mounted on two types of substrates, and the component D and the component E are mounted on only one type of substrate.

Therefore, the common component mounted on the most types of substrates K is component A. The production control system 10 preferentially allocates the carrier tape holding the common component A to the single feeder device 7. Further, the unique components mounted on the smallest number of types of substrates K are the component D and the component E. The production control 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 control system 10 allocates the carrier tape holding the component B and the carrier tape holding the component C to the two multi-feeder devices 8.

Finally, the parts shown in the feeder serving list 12 are assigned. That is, the slot No. A carrier tape 7T holding the common component A is assigned to the single feeder device 7 equipped in 1. In addition, slot No. 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 mounted on the 2. Further, slot No. A first carrier tape 8T1 holding the component C and a second carrier tape 8T2 holding the unique component E are assigned to the second multi-feeder device 8 mounted on the third.

By the way, the five types of parts A to E can be supplied in combination with the three single feeder devices 7 and the one multi-feeder device 8. In this case, the production control system 10 preferentially allocates the carrier tape holding the common component A to the single feeder device 7, and assigns the carrier tape holding the unique component D and the carrier tape holding the unique component E to the multi-feeder device. Priority is given to 8. At this point, the 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 be supplied by using the five single feeder devices 7. From another point of view, the number of slots used can be reduced by the amount of using the multi-feeder device 8.

After the feeder serving list 12 is stored, the production of the substrate K by the component mounting machine 1 is started. The production of the substrate K is advanced by repeating each step S4 to S11 between steps S3 to S12 of FIG. In step S4, the control device 6 of the component mounting machine 1 sets the board type to be produced according to the command from the production control system 10. In the first step S4, the control device 6 sets the first first substrate type. After that, the first substrate type becomes the substrate K (current substrate type) currently being produced, and the second substrate type becomes the substrate K (next substrate type) to be produced next. Further, the common part A, the part B, and the part C become the parts of the current production type, and the common part A, the part C, and the unique part D become the parts of the next production type.

Only for the first type of the first substrate, the worker sets up the feeder device with reference to the feeder serving list 12 before starting the production. That is, the operator 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 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 first, and then the tape reel 822 on which the second carrier tape 8T2 is wound is set on the rear side. It is explained as.

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 in a state where the sprocket is engaged with the carrier tape 8T1.

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

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

In the next step S7, the parts to be mounted on the current board type are automatically switched. However, in the first first substrate type, the common component A, the component B, and the component C are prepared so that they can be supplied. Specifically, the single feeder device 7 feeds the carrier tape 7T to the supply position 73 to enable the supply 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. As a result, the pitch feed of the first carrier tape 8T1 becomes possible by the cooperation of the first loading drive unit 851 and the feeding drive unit 853.

With the above, the setup change operation is completed, and the production of the substrate K of the current substrate type actually starts. That is, the production operation by supplying the parts by the single feeder device 7 and the two multi-feeder devices 8 and collecting and mounting the parts by the parts transfer device 4 is repeated, and the board K of the current board type is sequentially produced. .. The processes from step S8 to step S10 are performed in parallel with the production operation of the substrate K of the current substrate type. In the processes of steps S8 to S10, the feeder serving list 12 is referred to.

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

That is, the feeding drive unit 853 engaged with the carrier tape that is no longer used and one of the first loading drive unit 851 and the second loading drive unit 852 are reversed, and the carrier tape is pulled back. Further, 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 carrier tape that is no longer used is discharged rearward from the first insertion port 841 or the second insertion port 842. Therefore, the operator can remove the tape reel (821 or 822) around which the carrier tape that is no longer used is wound without interrupting the production operation of the component mounting machine 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 shortened and its end is already extended to the front side of the first loading drive unit 851 and the second loading drive unit 852, the automatic discharge 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 collected outside the machine.

In the next step S9, the control device 6 of the component mounting machine 1 guides and displays on the display unit that new components to be mounted on the board K of the current board type are to be replenished without being mounted on the board K of the current board type. .. 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 component D corresponds to a new component. Therefore, the control device 6 guides and displays 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 parts to be mounted on the board K of the next board type according to the guidance display. In the first step S10, 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.

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 in a state where the sprocket is engaged with the carrier tape 8T2. Subsequently, the feeder control unit 89 drives the second loading drive unit 852 to pay out the carrier tape 8T2 initially held. Then, at a certain point in time, the second standby position sensor 864 detects the arrival of the tip of the carrier tape 8T2, so that 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. Then, 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. It is done automatically. According to this, the preparation of the unique component D to be mounted on the substrate K of the second substrate type is completed at the time when the substrate K of the first substrate 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 the second step S4, the control device 6 of the component mounting machine 1 changes and sets the board type to be produced from the first board type to the second board type according to the command from the production control system 10. After that, the second substrate type becomes the substrate K (current substrate type) currently being produced, and the third substrate type becomes the substrate K (next substrate type) to be produced next.

In the second step S5, the component mounting machine 1 starts the production of the substrate K of the second substrate type. In the second step S6, the component mounting machine 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 parts 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 substrate K of the second substrate type is already prepared in the first step S10. Therefore, substantially, only the setting change to supply 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 second substrate type substrate K actually starts.

In the second step S9, the control device 6 of the component mounting machine 1 adds the unique component E as a new 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. Guidance is displayed to the effect that the multi-feeder device 8 of the above is to be replenished. In the second step S10, the operator sets the tape reel 822 wound with the second carrier tape 8T2 holding the unique component E 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 up 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. Will be done. According to this, the preparation of the unique component E to be mounted on the substrate K of the third substrate type is completed at the time when the substrate K of the second substrate type is being produced.

In this 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 No. A carrier tape 7T holding the common component A is assigned to the single feeder device 7 equipped in 1. Further, 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. Further, the second 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, the first multi-feeder device 8 is suspended when the substrate K of the second substrate type is produced. 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 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. ..

More specifically, in the state where 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 in the standby position. Then, when the component C is supplied, the first carrier tape 8T1 is extended to the supply position 83, and the second carrier tape 8T2 stays in the standby position. Next, when the unique component D is supplied, it is confirmed by the first standby position sensor 863 that the first carrier tape 8T1 is pulled back and pulled back to the standby position. Then, the second carrier tape 8T2 is fed to the supply position 83. Next, when the component C is supplied again, it is confirmed by the second standby position sensor 864 that the second carrier tape 8T2 is pulled back and pulled back to the standby position. Then, the first carrier tape 8T1 is fed out to the supply position 83 again. Hereinafter, similarly, the first carrier tape 8T1 and the second carrier tape 8T2 are selectively fed 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 No. The second multi-feeder device 8 equipped in 3 is suspended. Therefore, in parallel with the production operation of the substrate K of the third substrate type, a new component to be mounted on the substrate K of the substrate 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 mounting machine 1 or 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 forward with the first loading drive unit 851 that enables the first carrier tape 8T1 inserted into the first insertion port 841 to be fed out to the supply position 83 by rotating forward. As a result, the forward rotation and reverse rotation of the second loading drive unit 852 that enables the second carrier tape 8T2 inserted into the second insertion port 842 to be fed out to the supply position 83 and the forward rotation and reverse rotation of the first loading drive unit 851 are controlled. A feeder control unit 89 is provided, which feeds the first carrier tape 8T1 to the supply position 83 and pulls back the first carrier tape 8T1 when the second carrier tape 8T2 is used.

According to this, the multi-feeder device 8 performs an efficient operation of preparing the unique component D of the next production type in advance in parallel with supplying the component B of the current production type, so that the substrate K to be produced The time required for switching when switching the type of is shortened. On the other hand, since the operator may load the carrier tape 8T2 for the next production at an arbitrary time while the multi-feeder device 8 is supplying the component B of the current production type, the degree of freedom of the setup change work is increased. big. 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 next production to the standby position. According to this, when the type of the substrate K to be produced is switched, the setting for supplying the unique component D instead of the component B is only changed, so that the time required for switching is significantly shortened and the operator can perform the switching at the time of switching. You don't have to be present.

Further, the multi-feeder device 8 automatically pulls back the carrier tapes (8T1, 8T2) that are no longer used, and the carrier tapes (8T1, 8T2) that are no longer used while the multi-feeder device 8 is mounted on the component mounting machine 1. ) Allows discharge. 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) becomes easy.

Further, in the method of producing a substrate, two carrier tapes (8T1 and 8T2) in which cavities for holding parts are formed in a row are individually held so as to be able to be fed out and pulled back, and one of the carrier tapes (8T1 and 8T2) is held. The component mounting machine 1 is equipped with a multi-feeder device 8 that selectively feeds 8T1 and 8T2) from the standby position to the supply position 83 and a single feeder device 7 that can feed one carrier tape 7T to the supply position 73. , A plurality of types of parts are supplied to the supply positions (83, 73), and the parts are collected at each supply position (83, 73) by using the parts transfer device 4 equipped in the component mounting machine 1. The production operation of mounting on the board K conveyed to the mounting position of the mounting machine 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. However, it is a method of producing a substrate K, in which a carrier tape holding a common component A mounted on a large number of types of substrates K is preferentially assigned to the single feeder device 7, and is uniquely mounted on a small number of types of substrates K. The carrier tape holding the parts D and E is preferentially assigned to the multi-feeder device 8.

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 the cavity portions for holding the parts are formed side by side are individually held so that they can be fed out and pulled back, and one of the carrier tapes (8T1, 8T2) is selected. The component mounting machine 1 is equipped with a multi-feeder device 8 for feeding from the standby position to the supply position 83, parts are supplied to the supply position 83, and the components are supplied using the component transfer device 4 equipped in the component mounting machine 1. A multi-feeder device 8 that repeats the production operation of collecting parts at position 83 and mounting them on the board K conveyed to the mounting position of the component mounting machine 1. Production of the second board type in the feeder serving list 12A of FIG. Occasionally, 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 the production of the third substrate type in the serving list 12A of FIG. 6, the first multi-feeder device 8 holds the first carrier tape 8T1 holding the component B and the second carrier holding the unique component E. The tape 8T2 is automatically and alternately selected and fed to the supply position 83.

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

(5. Application and modification of the embodiment)
In the embodiment, the case where the single feeder device 7 and the multi-feeder device 8 are used in combination has been described, but 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, if slack when the carrier tapes (8T1, 8T2) are discharged is allowed, the first take-up drive unit 855 and the second take-up drive unit 856 can be omitted. The present embodiment can be applied and modified in various other ways.

1: Parts mounting machine 2: Board transfer device 3: Parts supply device 4: Parts transfer device 5: Parts 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: Delivery drive unit 861: First loading position sensor ( 1st loading position) 862: 2nd loading position sensor (2nd loading position) 863: 1st standby position sensor (1st standby position) 864: 2nd standby position sensor (2nd standby position) 89: Feeder control unit 8T1 : 1st carrier tape 8T2: 2nd carrier tape 91: Tape cutter 10: Production control system 12, 12A: Feeder serving list

The present specification includes a first step of feeding the first carrier tape from the standby position to the supply position, and a second step of pulling the first carrier tape back to the standby position when the second carrier tape is used. Discloses a carrier tape loading method including a third step of detecting the presence or absence of the first carrier tape in the standby position.

Claims (7)

A first loading drive unit that enables the first carrier tape inserted into the first insertion port to be fed out to the supply position by rotating in the normal direction.
A second loading drive unit that enables the second carrier tape inserted into the second insertion port to be fed out to the supply position by rotating in the normal direction.
The forward rotation and reverse rotation of the first loading drive unit are controlled to feed the first carrier tape to the supply position, and when the second carrier tape is used, the first carrier tape is pulled back. Feeder control unit and
Multi-feeder device with. The feeder control unit controls the forward rotation and 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 the loading position and waits in the standby position when the first carrier tape is used again. It is further provided with a feeding drive unit which is arranged below the supply position and cooperates with a selected one of the first loading drive unit and the second loading drive unit according to the control from the feeder control unit. The multi-feeder device according to claim 1 or 2. The multi-feeder device according to any one of claims 1 to 3, further comprising a tape cutter arranged on the front side of the supply position and cutting 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 parts to be held. The multi-feeder device according to claim 5, wherein the first carrier tape is used for the substrate of the current substrate type, and the second carrier tape is used for the substrate of the 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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