JP2000174492A - Electronic component mounting apparatus and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic component mounting apparatus and method, in which a empty tape is accommodated depending on the type thereof and which does not require classification work after collection. SOLUTION: In an electronic component mounting apparatus for picking up electronic components with a shifting head 13 from a supply part 16 and then moving the components to a substrate 12, a plurality of feeder bases 17 loading a tape feeder 18 for supplying electronic components to a pickup position through pitch feeding of the tape holding the electronic components to the supply part 16 are installed, and each feeder base 17 is provided with a collection box, which is provided with the tape feeder 18 of the same type for discriminating and collecting the empty tape ejected from the tape feeder 17 depending on the type of vacant tape. Thereby, the discriminating work for discriminating the various types of vacant tape after the vacant tape being cut can be dispensed with.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component mounting apparatus and method for mounting an electronic component on a substrate.

[0002]

2. Description of the Related Art As a method for supplying electronic components in an electronic component mounting apparatus, a method using a tape feeder is known. In this method, electronic components such as semiconductor chips are held at a constant pitch on a tape, stored in a state wound on a supply reel, and the tape is fed out at the time of mounting, so that the electronic components are transferred to a transfer head. It supplies to the pickup position. The empty tape after the electronic components have been picked up is sent out from the tape feeder by continuously feeding the tape at a constant pitch.

[0003]

This empty tape is cut out after being discharged from the tape feeder and collected in a collection box. However, in a conventional electronic component mounting apparatus, empty tapes made of paper or resin are collected in a collection box in a mixed state. For this reason, it was necessary to separate paper and resin at the time when they were finally collected as waste. At present, there is no other way than to perform this sorting process manually, and this sorting operation requires a great deal of labor and time.

Accordingly, an object of the present invention is to provide a mounting apparatus and a mounting method for an electronic component in which empty tapes are collected according to the type, and sorting work after collection is not required.

[0005]

According to a first aspect of the present invention, there is provided an electronic component mounting apparatus for picking up an electronic component from a supply section of the electronic component by a transfer head and transferring the electronic component to a substrate. A plurality of tape feeders for feeding electronic components to the pickup position of the transfer head by feeding the tape holding the electronic components to the supply unit at a pitch are arranged in parallel, and these tape feeders are set according to the type of tape. Separating means for separating and arranging the empty tapes from the tape feeder, and separating and collecting means for separating and collecting the empty tape discharged from the tape feeder according to the type of the empty tape.

According to a second aspect of the present invention, there is provided the electronic component mounting apparatus according to the first aspect, further comprising cutting means for cutting the empty tape in accordance with the type of the empty tape.

According to a third aspect of the present invention, there is provided a method of mounting an electronic component, wherein the electronic component is picked up from a supply section of the electronic component by a transfer head and transferred to a substrate. A tape feeder that feeds electronic components to the pick-up position of the transfer head by pitch-feeding the tapes holding the electronic components arranged side by side is arranged separately according to the type of the tape, and the empty space discharged from the tape feeder is separated. Tapes were sorted and collected according to the type of empty tape.

According to the present invention, the tape feeder for supplying the electronic components is separated and arranged according to the type of the tape, and the empty tape discharged from the tape feeder is separated and collected according to the type of the empty tape. In addition, the sorting work after the collection can be made unnecessary.

[0009]

Embodiments of the present invention will now be described with reference to the drawings. 1 is a perspective view of an electronic component mounting apparatus according to an embodiment of the present invention, FIG. 2 is a side sectional view of the electronic component mounting apparatus, and FIG. 3 is a perspective view of an empty tape cutting device of the electronic component mounting apparatus. 4 is an air circuit diagram of the empty tape cutting device of the electronic component mounting apparatus, FIGS. 5A, 5B and 5C are explanatory diagrams of the operation of the empty tape cutting device of the electronic component mounting device, FIG.
3A and 3B are partial cross-sectional views of an empty tape discharge unit of the electronic component mounting apparatus.

First, the structure of the electronic component mounting apparatus will be described with reference to FIGS. In FIG. 1, a substrate 12 is placed on a transport path 11. A supply unit 16 for electronic components is provided on the side of the transport path 11, and a plurality of tape feeders 18 are arranged in the supply unit 16. The tape feeder 18 feeds the electronic component to the pickup position of the transfer head 13 by feeding the tape holding the electronic component at a pitch. The transfer head 13 is moved in the horizontal direction by a driving means (not shown), and the nozzle 1 attached to the lower end is moved.
The electronic component is picked up by 4 and transferred to the substrate 12. A recognition unit 15 is provided between the supply unit 16 and the transport path 11. The recognition unit 15 recognizes the electronic component held by the transfer head 13.

Next, the supply section 16 will be described. The supply unit 16 includes a plurality of (two in the present embodiment) feeder bases 17. As shown in FIG. 1, the feeder base 17 is slidably provided along the guide rail 21, and reciprocates in the direction of the arrow by driving the cylinder 20. A plurality of tape feeders 18 are mounted on the feeder base 17, and when any of the electronic components has run out of any of the tape feeders 18, the feeder base 17 is slid to move the tape feeder 18.
Can be pulled out to the electronic component supply position. At this time, the plurality of feeder bases 17 can be individually pulled out.

The front of the tip of the tape feeder 18 (FIG. 1)
A discharge duct 22 for guiding an empty tape (tape after electronic components have been picked up) is provided on the transport path 1 side in FIG. The discharge duct 22 is a duct having a large opening on the upper surface as shown in FIG. 2, and guides the empty tape 19 discharged from the tip of the tape feeder 18 downward (see also FIG. 6).

An empty tape cutting device 23, which is a means for cutting the empty tape 19, is provided at the lower outlet side of the discharge duct 22. The empty tape cutting device 23 includes the discharge duct 22.
Cuts the empty tape 19 guided downward. As shown in FIG. 6B, even when the feeder base 17 is pulled out to supply the electronic components to the tape feeder 18, the empty tape 19 is not completely pulled out from the discharge duct 22 as shown in FIG. Is set at a position such that the cut end portion 19a remains within the discharge duct 22. With such a position setting, the feeder base 1
It is not necessary to insert the cut end 19a of the leading end of the empty tape of the other tape feeder 18 into the discharge duct 22 each time the electronic component 7 is pulled out to supply electronic components.

A guide member 24 is provided below the empty tape cutting device 23. The guide member 24 guides the cut empty tape 19 obliquely downward and drops it into the empty tape collection box 25 disposed below the supply unit 6. Collection box 2
Reference numeral 5 denotes a collecting means for collecting the empty tape 19.

Next, referring to FIG.
Will be described. In FIG. 3, a plate-like holding member 28 is provided upright on a base member 27. A fixed blade 30 for cutting an empty tape is fixed to the holding member 28. The length B of the fixed blade 30 is determined by the feeder base 17.
, That is, the width of the tape feeders 18 arranged side by side.

A movable blade 31 is disposed opposite to the fixed blade 30. At the time of cutting the empty tape, the fixed blade 30 is at a position sandwiching the empty tape 19 to be cut. The movable blade 31 is configured by fixing a blade edge member 31a to a plate 32, and both ends of the plate 32 have two pivot points. That is, the first pivot point is the pin 33 provided on the right side of the plate 32, and the pin 33 is connected to the plate 34. The plate 34 is slidable in the direction of the arrow by a slider 35a and a guide rail 35b provided on the base member 27. The plate 34 is connected to a rod 36 a of a cylinder 36 fixed to the bracket 29, and the pin 33 connected to the plate 34 advances and retreats with respect to the fixed blade 30 when the rod 36 a protrudes and retracts.

A pin 38a of a rod end part 38 is connected to the left end of the plate 32, and the rod end part 38 is connected to a rod 39a of a cylinder 39. The rear end of the cylinder 39 is supported by a clevis fulcrum 41 pin-connected to a support member 40 extending rearward from the bracket 29. The pin 38a moves forward and backward with respect to the fixed blade 30 by the rod 39a protruding and retracting.

Next, referring to FIG.
The air circuit will be described. As shown in FIG. 4, an air pipe is connected to each port of the cylinders 36 and 39 via a variable throttle 45 as a speed controller, and the outlet port and the inlet port of each cylinder are a 5-port solenoid valve. 46 ports B and A. The P port of the solenoid valve 46 is connected to the air supply 4
The R1 port and the R2 port are each opened to the atmosphere via a silencer 47.

In the state shown in FIG. 4, air is supplied from the A port to the inlet ports of the cylinders 36 and 39, and the rod 36
The movable blade 31 is at the retracted position as both a and 39a are immersed. By switching the solenoid valve 46 in the direction of the arrow, air is supplied to the outlet ports of the cylinders 36 and 39 via the B port. Accordingly, the rods 36a and 39a perform the protruding operation, and the movable blade 31 advances to the fixed blade 30. In this advancing operation, the projection speed of the rods 36a, 39a can be adjusted by adjusting the opening degree of the variable throttles 45 mounted on the cylinders 36, 39, respectively. The part and the left end can advance at different speeds.

A cutting operation for cutting the empty tape 19 by moving the movable blade 31 forward will now be described with reference to FIG. FIG. 5A shows a state before cutting, in which the rods 36a and 39a of the cylinders 36 and 39 are both at the retracted position, the movable blade 31 is at the retracted position, and the cutting edge is fixed blade 30 with a space C therebetween. And almost in parallel. In this state, a large number of empty tapes 19 are guided to the discharge duct 22 and fall in the interval C, and cutting is performed at a predetermined timing.

The cutting operation is started by switching the solenoid valve 46 (FIG. 4). At this time, as shown in FIG. 5B, the rod 36a protrudes ahead (see arrow a),
The rod 39a projects later than this operation (see arrow b). This operation delay is performed by adjusting the opening degree of the variable throttle 45 of the cylinders 36 and 39 so that the operation speed of the rod 36a is higher than the operation speed of the rod 39a.
According to such a method, the above-described operation can be performed by one electromagnetic valve, and the control system of the cutting device 23 can be simplified.

In the above operation, the right end of the movable blade 31 is connected to the plate 24 via the pin 33, the left end is connected to the rod 39a via the pin 38a, and the cylinder 39 is connected to the clevis. Since the rods 36a and 39a protrude at different speeds because the rods 36a and 39a protrude at different speeds, the rotation of the movable blade 31 in a plane including the movable blade 31 and the fixed blade 30 (see arrow c) and Rotation of the cylinder 39 around the clevis fulcrum 41 (see arrow d)
Is acceptable. That is, the movable blade 31 performs an advance operation with respect to the fixed blade 30 and a rotation around the pin 33, and in this operation, cuts the empty tape 19 sandwiched between the fixed blade 30 and the movable blade 31.

At this time, the empty tape 19 near the range A shown in FIG. 3B is cut first, and then the empty tape 19 is sequentially cut with the projection of the rod 39a. Therefore, even if a large number of tape feeders 18 are arranged side by side and a large number of empty tapes 19 are to be cut, the number of empty tapes 19 actually cut at the same time is small. Therefore, the cylinders 36 and 39, which are the driving sources for generating the cutting load, need only have the required capacity to cut the small number of empty tapes, and the cutting mechanism can be downsized. That is, even when a large number of empty tapes are to be cut, a large number of empty tapes can be sequentially cut from the end with a small cutting load, and a large number of empty tapes can be efficiently cut with a single cutting operation. .

FIG. 5C shows a state in which the rod 39a has completed the projection, the cutting edge of the movable blade 31 has overlapped with the fixed blade 30, and the cutting of the empty tape 19 has been completed. Thereafter, the rod 36a, 39a of the cylinder 36, 39 is retracted, whereby the cutting operation of the empty tape 19 is completed. In the empty tape cutting device 23, by setting the sizes of the cylinders 36 and 39 and the operating speed of the rods 36a and 39a appropriately, it is possible to perform efficient cutting according to the characteristics of the cutting target.

In this embodiment, a tape feeder 18 for paper tape is mounted on one feeder base 17 and a tape feeder 18 for tape made of resin is mounted on the other feeder base 17. The empty tape cutting devices 23 provided on the respective feeder bases 17 include:
Cylinders 36, 39 of different sizes (and thus different cutting load capacities) are provided, which are suitable for cutting empty paper and resin tapes.

This electronic component mounting apparatus is configured as described above, and the operation will be described below. First, the tape feeder 18 is mounted on the supply unit 16 before the mounting apparatus is started to start mounting electronic components on the substrate 12. In this mounting operation, the arrangement of the tape feeders 18 on the feeder base 17 is determined in consideration of the type of electronic components as well as the material of the tape holding the electronic components. That is, there are two types of normal tape, paper and resin, depending on the material, but the arrangement is determined so that the tape feeders 18 using the same type of tape are mounted on the same feeder base 17.

As described above, the tape feeder 18 of the same type of tape is provided for each separately provided feeder base 17.
In this way, the tape feeder 18 can be easily separated and arranged according to the type of tape. Therefore, the plurality of feeder bases 17 serve as sorting and arranging means for the tape feeder 18.

When the mounting of the tape feeder 18 to the supply unit 16 is completed, the mounting operation is started. The electronic components supplied from each tape feeder 18 are picked up by the transfer head 13 and mounted on the substrate 12 after the position is recognized by the recognition unit 15. When this operation is continued according to a predetermined mounting program, each tape feeder 18
Of electronic components are consumed and parts are sequentially cut.

In the event that a component has run out, an operation of replenishing electronic components is performed. This supply operation is performed by exchanging the reel around which the tape is wound in a state where the feeder base 17 on which the tape feeder 18 containing the electronic component is mounted is pulled out to the electronic component supply position. At this time, of the plurality of feeder bases 17, only the feeder base 17 on which the tape feeder 18 with the out-of-parts is mounted may be pulled out. The supply of electronic components can be continued. Therefore, there is no need to interrupt the mounting operation of the electronic components even during the component supply work,
The operation rate of the electronic component mounting apparatus can be improved.

During the mounting operation, each tape feeder 1
Empty tape 19 after electronic components are picked up from 8
Is discharged. The empty tape 19 is guided to the discharge duct 22 and cut by the empty tape cutting device 23, slides down on the guide member 24, falls into the collection box 25, and is collected. This collection box 25 is provided for each feeder base 17. Since the tape feeders 18 of the same tape type are collectively arranged on each feeder base 17, each collection box 25 has the same type of empty tape. Only 19 are recovered. That is, the collection box 25 is a sorting and collecting unit that collects the empty tape 19 for each tape type. Therefore, there is no need for a sorting operation for separating the cut empty tape 19 for each tape type, which has been conventionally required.

Further, as described above, the cutting position of the empty tape 19 is set so that the leading end 19a is in the discharge duct 22 even when the feeder base 17 is pulled out at the time of replenishment of components. After empty tape 1
The replenishment operation can be performed quickly and in a short time without the need to return the distal end portion 19a of the 9 to the discharge duct 22.

In the present embodiment, a plurality of feeder bases are provided as sorting and arranging means for sorting and arranging a tape feeder for each type of tape, but the feeder base itself is a single common one. age,
By configuring the tape feeder arrangement software to automatically arrange the tape feeders on the feeder base according to the type of tape, tape feeders using the same type of tape can be arranged together. In this case, the tape feeder arrangement software serves as the sorting arrangement means.

[0033]

According to the present invention, a tape feeder for supplying an electronic component is arranged separately according to the type of tape.
Since the empty tape discharged from the tape feeder is sorted and collected according to the type of the empty tape, it is not necessary to sort the cut empty tape by type after collection.

[Brief description of the drawings]

FIG. 1 is a perspective view of an electronic component mounting apparatus according to an embodiment of the present invention.

FIG. 2 is a side sectional view of the electronic component mounting apparatus according to the embodiment of the present invention;

FIG. 3 is a perspective view of an empty tape cutting device of the electronic component mounting apparatus according to the embodiment of the present invention;

FIG. 4 is an air circuit diagram of an empty tape cutting device of the electronic component mounting device according to one embodiment of the present invention;

FIG. 5 (a) is a diagram illustrating the operation of an empty tape cutting device of the electronic component mounting apparatus according to one embodiment of the present invention; and (b) the operation of the empty tape cutting device of the electronic component mounting device according to one embodiment of the present invention. Explanatory diagram (c) Operation explanatory diagram of the empty tape cutting device of the electronic component mounting device according to one embodiment of the present invention.

FIG. 6A is a partial cross-sectional view of an empty tape ejection unit of the electronic component mounting apparatus according to one embodiment of the present invention; FIG. Sectional view

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 12 Substrate 13 Transfer head 16 Supply part 17 Feeder base 18 Tape feeder 19 Empty tape 22 Discharge duct 23 Empty tape cutting device 24 Guide member 25 Collection box

Claims (3)

[Claims] An electronic component mounting apparatus for picking up an electronic component from a supply unit of the electronic component by a transfer head and transferring the electronic component to a substrate, wherein a tape holding the electronic component is pitch-fed to the supply unit. A plurality of tape feeders for supplying the electronic components to the pickup position of the transfer head are arranged side by side. Sorting and arranging means for sorting and arranging these tape feeders according to the type of tape, and discharging the tapes from the tape feeder. An electronic component mounting apparatus, comprising: a separating and collecting unit that separates and collects an empty tape according to the type of the empty tape. 2. The electronic component mounting apparatus according to claim 1, wherein a cutting means for cutting the empty tape is provided according to the type of the empty tape. 3. A method for mounting electronic components, wherein electronic components are picked up by a transfer head from a supply unit of the electronic components and transferred to a substrate, wherein a plurality of tapes are arranged in parallel in the supply unit and hold the electronic components. The tape feeder that feeds electronic components to the pick-up position of the transfer head by pitch feeding is separated and arranged according to the type of tape, and the empty tape discharged from the tape feeder is sorted according to the type of empty tape. A method for mounting electronic components, which is separated and collected.