WO2014122742A1

WO2014122742A1 - Stack-type feeder and component mounting device

Info

Publication number: WO2014122742A1
Application number: PCT/JP2013/052760
Authority: WO
Inventors: 貴幸水野; 英俊川合; 伊藤　秀俊; 啓太田中
Original assignee: 富士機械製造株式会社
Priority date: 2013-02-06
Filing date: 2013-02-06
Publication date: 2014-08-14
Also published as: JP6140196B2; JPWO2014122742A1

Abstract

According to the present invention, a plurality of stack cases (13) in which components are housed in a stacked manner are housed in an upright state in a single row in a case-housing unit (12) of a stack-type feeder (11). Every time a component (14) on the top level of the stack case (13) positioned at the component pickup position is held and picked up by a holding device (43) of a component mounting device (41) from an opening at the top end of the stack case (13), a component-raising mechanism (16) raises each of the components (14) in the stack case (13) by a single-component increment. When the stack case (13) positioned at the component pickup position has run out of components, the stack case (13) is ejected by a case ejection mechanism (25), and the remaining stack cases (13) in the case-housing unit (12) are moved by a case-moving device (31) so as to fill the vacant space at the component pickup position.

Description

Stack type feeder and component mounting machine

The present invention relates to a stack type feeder and a component mounter for supplying components in a stack case in which components are stacked and accommodated to a component mounter.

As described in Patent Document 1 (Japanese Utility Model Publication No. 57-7661), a conventional stack type feeder stacks and accommodates parts in a rectangular cylindrical stack case extending in the vertical direction. The bottom part (plug body) of the stack case is configured to be movable up and down, and each time the components in the stack case are picked up and picked up by the suction device of the component mounter from the upper end opening of the stack case, There is one in which the parts stacked on the bottom are raised one by one by pushing up one part at a time with a push rod from below.

Japanese Utility Model Publication No.57-7661

However, in the configuration of Patent Document 1 described above, each time the stack case runs out of parts, an operator must perform a parts replenishment operation of replenishing the parts in the stack case or replacing the stack case. It is troublesome.

Therefore, the problem to be solved by the present invention is to provide a stack type feeder and a component mounter capable of automating the component replenishment work when the stack case is out of components.

In order to solve the above-mentioned problems, a stack type feeder according to the present invention includes a case accommodating portion for accommodating a plurality of stack cases in which components are stacked and accommodated, and a stack case positioned at a component pickup position. A component raising mechanism that raises the components in the stack case by one each time the components in the stack case are picked up and picked up from the upper end opening of the stack case by a suction device of the component mounting machine, and the stack that has run out of components A case discharging mechanism for discharging the case, and a case moving mechanism for moving the remaining stack case in the case accommodating portion so as to fill an empty space at the component pickup position each time the stack case is discharged by the case discharging mechanism. It is set as the structure provided. With this configuration, each time a stack case runs out of parts, all the stack cases housed in the case housing part run out of parts. The remaining stack case can be automatically replenished to the component pick-up position by the case moving mechanism, and the component replenishment work when the stack case is out of components can be automated, thereby improving productivity.

The stack type feeder of the present invention may accommodate a plurality of stack cases arranged in a plurality of rows in the case accommodating portion, or may accommodate a plurality of stack cases arranged in a row in the case accommodating portion. When multiple stack cases are accommodated in a row in the case accommodating section, the components in the top stack case in the row are configured to be picked up by the suction device of the component mounter, and the top stack is formed by the component lifting mechanism. A configuration may be adopted in which the components in the case are raised, and the top stack case is discharged by the case discharge mechanism when the top stack case runs out of components. In this way, components can be picked up in order from the top stack case, and the component pick-up position becomes one fixed position like the tape feeder, and the same operation as the tape feeder becomes possible.

Further, as a configuration example of the component raising mechanism, a stack case is formed of a non-magnetic material, and a movable bottom portion formed of a magnetic material is provided at the bottom of the stack case so as to be movable up and down in the stack case. The movable bottom portion may be attracted with a magnet from the outside and the magnet is raised to raise the movable bottom portion and raise the components in the stack case.

Alternatively, a slit extending in the vertical direction is formed in the stack case, an engaging member is inserted into the slit from the outside of the stack case, the movable member is engaged with the movable bottom portion of the stack case, and the engaging member is You may comprise so that the movable bottom part may be raised by raising along a slit and the components in this stack case will be raised.

Alternatively, a through hole may be formed at the bottom of the stack case, and a push-up shaft may be inserted into the stack case from below and the components in the stack case may be pushed up at the upper end of the push-up shaft. Alternatively, the bottom part of the stack case may be configured to be movable up and down, and the bottom part of the stack case may be pushed up from below and pushed up by a shaft to raise the parts stacked on the bottom part.

Further, as a configuration example of the case discharge mechanism, a drop opening for dropping the stack case is formed immediately below the stack case from which the parts are picked up in the bottom of the case housing portion, and the drop opening is opened and closed. You may comprise so that this stack case may be dropped from the said drop port by opening a shutter member. In this way, the stack case with parts cut can be dropped and discharged from the drop port at the bottom of the case housing portion, so that the case discharge mechanism can be configured compactly within the width of the case housing portion.

When the stack type feeder of the present invention is set in the feeder set unit of the component mounting machine, the stack type feeder and the cassette type feeder may be mixedly mounted.

In this case, the stack type feeder and the cassette type feeder may be configured so that the height and depth of the outer shape are the same. Thereby, the stack type feeder and the cassette type feeder can be mixedly mounted.

The cassette-type feeder includes a tape loading unit for loading a wound component supply tape, a tape feeding mechanism for feeding the component supply tape drawn from the tape loading unit to a component suction position, and the component supply before the component suction position. A top film peeling mechanism for peeling the top film from the tape to expose the components in the component supply tape, and a cassette case including the tape loading unit, the tape feeding mechanism, and the top film peeling mechanism; Good. If comprised in this way, a tape feeder can be made into a cassette type, and handling will become easy.

FIG. 1 is a perspective view showing a stack type feeder excluding a case housing portion in one embodiment of the present invention. FIG. 2 is a perspective view of the stack type feeder. FIG. 3 is a perspective view of the case discharging mechanism and its peripheral portion. FIG. 4 is a longitudinal sectional view for explaining the configuration of the component raising mechanism. FIG. 5 is a perspective view showing a state in which a plurality of stack type feeders are set on a component mounting machine. FIG. 6 is a perspective view showing a cassette type feeder.

Hereinafter, an embodiment embodying a mode for carrying out the present invention will be described.
First, the structure of the stack type feeder 11 which is a stack type component supply apparatus will be described with reference to FIGS.

As shown in FIG. 2, the case accommodating portion 12 of the stack type feeder 11 is configured in a U-shaped groove so as to accommodate a plurality of stack cases 13 arranged in a row. Each stack case 13 is formed in a rectangular tube shape extending in the vertical direction by a nonmagnetic material such as resin or aluminum, and components 14 are accommodated in a stacked state in the stack case 13 (see FIG. 3). The component 14 in the stack case 13 is picked up from the upper end opening of the case 13.

At the bottom of each stack case 13, a movable bottom 15 (see FIG. 3) formed of a magnetic material such as iron is accommodated so as to be movable up and down in the stack case 13, and components 14 are stacked on the movable bottom 15. Has been. Each time the uppermost part 14 in the stack case 13 is picked up, the part in the stack case 13 is picked up on the side of the part pickup position of the stack type feeder 11 (the head side of the stack case 13 row). A component raising mechanism 16 for raising 14 by one is provided.

The component raising mechanism 16 attracts the movable bottom 15 with the magnet 17 from the outside of the stack case 13 located at the component pickup position (the top of the row of the stack case 13) and raises the magnet 17 so that the movable bottom 15 is lifted. The components 14 stacked on the movable bottom portion 15 are raised to raise. The magnet 17 is fixed to a nut 19 of a ball screw 18 extending in the vertical direction, and the magnet 17 moves up and down integrally with the nut 19 by rotating the ball screw 18 forward / reversely by a motor 20.

At the bottom of the case housing portion 12 of the stack type feeder 11, a case discharge mechanism 25 for discharging the stack case 13 that has run out of parts is provided. As shown in FIG. 4, the case discharge mechanism 25 is formed with a drop opening 26 for dropping the stack case 13 directly below the stack case 13 located at the component pickup position in the bottom of the case housing portion 12. A shutter member 27 that opens and closes the drop opening 26 is opened and closed by an actuator 28 such as a solenoid.

As shown in FIGS. 1 and 2, a case moving mechanism 31 is provided on the side of the stack type feeder 11 opposite to the component pickup position. The case moving mechanism 31 is configured to move the remaining stack case 13 in the case accommodating portion 12 so as to fill the empty space at the component pickup position each time the stack case 13 is discharged by the case discharge mechanism 25. . The case moving mechanism 31 includes a pusher 32 that collectively moves the stack cases 13 accommodated in the case accommodating portion 12 toward the component pickup position, a ball screw 33 that extends in the vertical direction, and a nut 34 of the ball screw 33. And a link mechanism 35 connected between the pusher 32 and the ball screw 33 by rotating forward / reversely by the motor 36, thereby lowering / raising the nut 34 and moving the pusher 32 in the direction of the component pickup position. And slide in the opposite direction.

Although not shown, a communication / power supply connector connected to a communication / power supply connector on the component mounter 41 (see FIG. 5) is connected to the end surface of the stack type feeder 11 on the component pickup position side. Positioning pins for positioning with respect to the connector and the feeder set portion 44 of the component mounting machine 41 are provided. In addition, the stack type feeder 11 is provided with a control device (not shown) for controlling the motor 20 of the component raising mechanism 16, the actuator 28 of the case discharge mechanism 25, the motor 36 of the case moving mechanism 31, and the like.

Also, a component ID recording unit (not shown) that records or stores component identification information (hereinafter referred to as “component ID”) is provided at a predetermined position of the stack case 13. As the component ID recording unit, for example, a code label in which the component ID is recorded with a barcode, a two-dimensional code, or the like may be used, or an electronic tag (RF tag, IC tag, radio wave tag, (Also called a wireless tag) may be used.

Correspondingly, the stack type feeder 11 or the component mounter 41 is provided with a component ID reading unit (not shown) for reading the component ID from the component ID recording unit of the stack case 13 accommodated in the case accommodating unit 12. The component ID read by the component ID reading unit is transmitted to the control device (not shown) of the stack type feeder 11 or the component mounter 41 so as to automatically recognize the component type accommodated in the stack case 13. It has become.

A feeder ID recording unit (not shown) that records or stores feeder identification information (hereinafter referred to as “feeder ID”) is provided at a predetermined position of the stack type feeder 11, and the component mounter 41 has a stack type. A feeder ID reading unit (not shown) that reads the feeder ID from the feeder ID recording unit of the feeder 11 is provided, and the feeder ID read by the feeder ID reading unit is transmitted to the control device (not shown) of the component mounting machine 41. Thus, the type or the like of the stack type feeder 11 may be automatically recognized.

When the stack type feeder 11 configured as described above is set in the component mounter 41, as shown in FIG. 5, a plurality of stack type feeders 11 are set side by side in the feeder set unit 44 of the component mounter 41, The communication / power connector of each stack feeder 11 is connected to the communication / power connector on the component mounter 41 side. Thereby, control signals and the like are transmitted and received between the control device of each stack type feeder 11 and the control device of the component mounting machine 41, and the control device of the stack type feeder 11 is energized.

A case collection box 42 that collects a stack case 13 that has fallen from the stack feeder 11 is installed below the set area of the stack feeder 11 in the component mounter 41 so that it can be taken in and out. The case collection box 42 may be a large collection box that collects the stack cases 13 falling from the plurality of stack type feeders 11, or one case collection box 42 for each stack type feeder 11. May be installed.

During operation (production) of the component mounter 41, the uppermost component 14 in the stack case 13 located at the component pick-up position of the stack type feeder 11 is sucked from the upper end opening of the stack case 13 by the suction device of the component mounter 41. Adsorbed at 43 and picked up and mounted on a circuit board. Each time the component 14 is picked up from the upper end opening of the stack case 13, the motor 20 of the component raising mechanism 16 is operated to raise the magnet 17 that attracts the movable bottom 15 in the stack case 13 one by one, The parts 14 in the stack case 13 are raised one by one.

Thereafter, when the stack case 13 located at the parts pick-up position is out of parts, the actuator 28 of the case discharge mechanism 25 is actuated at that time, and the shutter member 27 is driven in the opening direction. The bottom drop opening 26 is opened, and the stack case 13 with its parts cut is dropped from the drop opening 26 and collected in the case collection box 42. At this time, if the stack case 13 is pressed in the direction of the component pick-up position by the pusher 32 of the case moving mechanism 31, the stack case 13 that has run out of components is unlikely to fall from the drop opening 26. Is slightly reversed to release the pressing of the stack case 13 by the pusher 32.

After the out-of-part stack case 13 falls from the drop opening 26 (after the actuator 28 of the case discharge mechanism 25 is actuated), the motor 36 of the case moving mechanism 31 is rotated forward to move the pusher 32 toward the part pick-up position. By doing so, the remaining stack cases 13 in the case accommodating portion 12 are moved so as to fill the empty space at the parts pickup position.

In this embodiment, the feeder set unit 44 of the component mounter 41 is configured so that the stack type feeder 11 and the cassette type feeder 61 (see FIG. 6) can be mixedly mounted. In this case, the stack type feeder 11 and the cassette type feeder 61 are configured such that the height and depth dimensions of the outer shape are the same. Thereby, the stack type feeder 11 and the cassette type feeder 61 can be easily mixed. In addition, automatic exchange between the component mounter 41 and the AGV by an external robot is facilitated. Note that the dimensions of the cassette type feeder 61 in the tape width direction may be different.

As shown in FIG. 6, the cassette case 62 of the cassette type feeder 61 is formed of a transparent or opaque plastic plate or metal plate, and its side surface (cover) can be opened and closed. In the cassette case 62, a tape loading unit 65 for loading a tape reel 64 around which the component supply tape 63 is wound in a removable manner (replaceable) is provided. A reel holding shaft 66 that rotatably holds the tape reel 64 is provided at the center of the tape loading unit 65.

Inside the cassette case 62, a tape feeding mechanism 68 for feeding the component supply tape 63 pulled out from the tape reel 64 to the component suction position, and the top film 70 is peeled from the component supply tape 63 before the component suction position to supply the component. A top film peeling mechanism 69 that exposes the components in the tape 63 is provided. The component suction position is located near the end of the upper surface of the cassette case 62 on the tape feed direction side. In the cassette case 62, a tape guide 71 is provided for guiding the component supply tape 63 drawn from the tape reel 64 to the component suction position.

The tape feeding mechanism 68 includes a sprocket 72 provided near the lower part of the component suction position, a motor 73 that rotates the sprocket 72, and the like, and is formed on one side edge of the component supply tape 63 at a predetermined pitch. By engaging the teeth of the sprocket 72 with the tape feed hole and rotating the sprocket 72, the component supply tape 63 is pitch-fed to the component suction position.

The top film peeling mechanism 69 includes a tape press 75 for peeling the top film 70 from the upper surface of the component supply tape 63 by pressing the component supply tape 63 before the component suction position, and the top film peeled by the tape press 75. A top film feed gear mechanism 77 that pulls 70 in a direction opposite to the tape feed direction and feeds it into a top film collection section 76 provided at the upper part of the cassette case 62, a motor 78 that drives the top film feed gear mechanism 77, and the like It is composed of

At the edge of the cassette case 62 on the tape feeding direction side, the waste tape 63a (only the carrier tape from which the top film 70 has been peeled off in this embodiment) from which the components have been taken out after passing through the component suction position is located below. A waste tape discharge passage 80 is provided so as to extend downward, and an outlet 80a of the waste tape discharge passage 80 is provided at a position below the center of the end surface of the cassette case 62 on the tape feed direction side. ing. An air inlet (not shown) is provided at an upper portion of the waste tape discharge passage 80 so as to open to an end surface of the cassette case 62 on the tape feeding direction side, and the waste tape discharge passage 80 extends from the air inlet. Air is introduced into the waste tape discharge passage 80 to cause a downward air flow.

In the cassette case 62, a control device 82 for controlling the motor 73 of the tape feeding mechanism 68 and the motor 78 of the top film peeling mechanism 69 is provided. In addition, although not shown, the cassette case 62 is provided with a communication / power connector connected to the communication / power connector on the component mounter 41 side.

Further, an identification information recording unit (not shown) that records or stores feeder identification information (hereinafter referred to as “feeder ID”) is provided at a predetermined position of the cassette case 62. As this identification information recording unit, for example, a code label in which a feeder ID is recorded with a barcode, a two-dimensional code, or the like may be used, or an electronic tag (RF tag, IC tag, radio wave tag, (Also called a wireless tag) may be used.

The cassette-type feeder 61 is not limited to the configuration shown in FIG. 6. For example, the cassette-type feeder 61 is provided with a winding unit for winding the component supply tape in the cassette case, and the component supply tape introduced from the outside into the cassette case You may make it load in a cassette case in this tape loading part by winding up in a winding part.

According to the embodiment described above, the stack case 13 located at the component pick-up position is out of components until all the plurality of stack cases 13 accommodated in the case accommodating portion 12 of the stack type feeder 11 are out of components. Each time, the case discharge mechanism 25 discharges the stack case 13 that is out of components, and the case moving mechanism 31 automatically supplies the remaining stack case 13 to the component pickup position. The parts replenishment work can be automated and productivity can be improved.

In addition, in this embodiment, a plurality of stack cases 13 are accommodated in a row in the case accommodating portion 12, and the component 14 in the top stack case 13 in the row is picked up by the suction device 43 of the component mounter 41. Thus, the parts 14 can be picked up in order from the top stack case 13, and the parts pick-up position becomes one fixed position like the tape feeder, and the same operation as the tape feeder becomes possible. .

Further, as shown in FIG. 5, since the plurality of stack type feeders 11 are set side by side in the feeder setting unit 44 of the component mounting machine 41, the interval between the stack type feeders 11 is set to the suction device of the component mounting machine 41. By setting it to be the same as the nozzle interval of 43, a plurality of parts can be picked up simultaneously by a plurality of nozzles of the suction device 43.

Further, by adjusting the number of components 14 accommodated in the stack case 13 and the number of stack cases 13 accommodated in the case accommodating portion 12, only the number of components necessary for production can be accommodated in the stack feeder 11. It is possible to perform quantitative / constant replenishment.

In addition, since the stack case 13 can be collected and reused every time it runs out of parts, there is no problem of collecting used tape such as a tape feeder.

In this embodiment, the plurality of stack cases 13 are accommodated in a row in the case accommodating portion 12, but the plurality of stack cases are accommodated in a plurality of rows in the case accommodating portion. You may do it.

Moreover, although the component raising mechanism 16 of the present embodiment is configured by using the magnet 17, a slit extending in the vertical direction is formed in the stack case, and the engaging member is inserted into the slit from the outside of the stack case. The movable bottom portion of the stack case may be engaged, and the engaging member may be raised along the slit to raise the movable bottom portion and raise the components in the stack case.

Further, the case discharge mechanism 25 of the present embodiment is configured to open and close the drop opening 26 with the shutter member 27, but may be configured to open and close the drop opening 26 with an opening and closing door that opens and closes with a hinge as a fulcrum. good.

Further, the case moving mechanism 31 of the present embodiment is configured to convert the vertical movement of the nut 34 of the ball screw 33 extending in the vertical direction into the horizontal movement of the pusher 32 via the link mechanism 35. A ball screw may be provided in parallel with the movement of the pusher 32 in the horizontal direction, and the pusher 32 may be moved directly in the horizontal direction with the ball screw.

In addition, it goes without saying that the present invention can be implemented with various modifications within a range not departing from the gist, such as storing the stack type feeder 11 in a cassette case to form a cassette.

DESCRIPTION OF SYMBOLS 11 ... Stack type feeder (part supply apparatus), 12 ... Case accommodating part, 13 ... Stack case, 14 ... Parts, 15 ... Movable bottom part, 16 ... Parts raising mechanism, 17 ... Magnet, 18 ... Ball screw, 19 ... Nut, DESCRIPTION OF SYMBOLS 20 ... Motor, 25 ... Case discharge mechanism, 26 ... Drop port, 27 ... Shutter member, 28 ... Actuator, 31 ... Case moving mechanism, 32 ... Pusher, 33 ... Ball screw, 34 ... Nut, 35 ... Link mechanism, 36 ... Motor 41, component mounting machine 42, case collection box 43, suction device 44, feeder set unit 61 cassette cassette feeder 62 cassette case 63 component supply tape 63 a waste tape 64 tape Reel, 65 ... tape loading section, 66 ... reel holding shaft, 68 ... tape feeding mechanism, 69 ... top film peeling mechanism, 71 ... tape film De, 72 ... sprocket, 75 ... tape pressing, 76 ... top film collecting section, 77 ... top film feeding gear mechanism, 78 ... motor, 80 ... disposal tape discharge passage, 82 ... controller

Claims

A case housing portion that houses a plurality of stack cases in which components are stacked and accommodated in a standing state; and
A component raising mechanism that raises the components in the stack case one by one each time the components in the stack case located at the component pickup position are picked up and picked up by the suction device of the component mounter from the upper end opening of the stack case When,
A case discharge mechanism for discharging the stack case that has run out of parts;
A case moving mechanism that moves the remaining stack case in the case housing portion so as to fill the empty space at the component pickup position each time the stack case is discharged by the case discharge mechanism. Stack type feeder.
The case accommodating portion is configured to accommodate the plurality of stack cases in a line and to pick up the components in the stack case at the top of the line by the suction device of the component mounting machine,
The component raising mechanism is configured to raise a component in the top stack case,
2. The stack type feeder according to claim 1, wherein the case discharge mechanism is configured to discharge the first stack case when the first stack case runs out of parts. 3.
The stack case is formed of a non-magnetic material, and a movable bottom formed of a magnetic material is provided at the bottom of the stack case so as to be movable up and down in the stack case.
The component raising mechanism is configured to raise the movable bottom portion and raise the components in the stack case by attracting the movable bottom portion with a magnet from the outside of the stack case and raising the magnet. The stack type feeder according to claim 1, wherein the stack type feeder is provided.
At the bottom of the case housing portion, a drop opening for dropping the stack case is formed immediately below the stack case from which components are picked up,
The case discharging mechanism includes a shutter member that opens and closes the drop port, and is configured to drop a stack case with a component cut from the drop port by opening the shutter member. The stack type feeder according to any one of 1 to 3.
A component mounting machine comprising a feeder set unit for setting the stack type feeder according to any one of claims 1 to 4, and mounting a component supplied by the stack type feeder on a circuit board.
The component mounting machine, wherein the feeder set unit is configured so that the stack type feeder and the cassette type feeder can be mixedly mounted.
6. The component mounting machine according to claim 5, wherein the stack-type feeder and the cassette-type feeder are configured to have the same height and depth.
The cassette type feeder is
A tape loading unit for loading the wound component supply tape;
A tape feeding mechanism for feeding a component supply tape drawn from the tape loading unit to a component suction position;
A top film peeling mechanism that peels off the top film from the component supply tape before the component adsorption position to expose the components in the component supply tape;
The component mounting machine according to claim 5, further comprising a cassette case including the tape loading unit, the tape feeding mechanism, and the top film peeling mechanism.