JPH09214175A - Tape feeder and component mounting equipment using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tape feeder and a component mounting equipment using it wherein an excessive load is not applied to a working head, the component mounting equipment can be miniaturized, high speed process of component mounting is enabled, and assembly allowing some arrangement irregularity of driving sources is easy. SOLUTION: A tape feeder 30 is installed on an installation stand 44 fixed to an equipment main body 46. A piston 55-1 of a cylinder 55 of the insulation stand 44 presses a pin 45-2 of a tape feeder 30. An under arm 38-3 pivotally rotates in the counterclockwise direction, abuts against a stopper 53 and halts. A vertical arm 32-3, a latch pawl 49, a latch gear 33, etc., operate, and a tape is fed out. A lateral arm 38-2, a clutch plate 39, a reel 22, etc., operate and a cover tape is wound up. When the pressing force is excessive on account of front and rear irregularity of cylinder arrangement, a vertical shaft 45-1 pivotally rotates in the counterclockwise direction against the energizing force of an energizing member, and absorbs the excessive pressing force.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape feeder which drives a feeding mechanism by a drive source provided on a mounting table to supply a taping electronic component to a pick position, and a component mounting apparatus using the tape feeder.

[0002]

2. Description of the Related Art Conventionally, there has been a production line for automatically mounting a large number of chip-shaped electronic components such as ICs, resistors and capacitors on a circuit board and soldering the mounted electronic components to manufacture a board unit. is there. In such a production line, there is a component mounting device (or also called a component mounting device or mounter) as a device for mounting an electronic component on a circuit board. This component mounting apparatus is equipped with a working head for mounting electronic components on a circuit board.

FIG. 7 is a perspective view of such a working head. As shown in the figure, the work head 1 is connected to a central control section of an apparatus main body (component mounting apparatus) by a flexible belt-shaped cord 2. Electric power and control signals are supplied from the central control unit by the band-shaped code 2, and recognition data such as a target position to be worked on the circuit board is transmitted to the central control unit. The working head 1 is provided with two light emitting portions 3 (3a, 3b) at its tip, and diffusion plates 4 (4a, 4b) are provided below them. The suction nozzles 5 (5a, 5b) are shown below them, respectively. However, in the perspective view of FIG. 7, the suction nozzle 5a can be seen in a partially cut-away perspective view of the diffusion plate 4a, but the suction nozzle 5b is shaded by the diffusion plate 4b. It remains invisible and is invisible).

The work head 1 sucks and holds a predetermined electronic component from the component supply base of the apparatus main body by the suction nozzle 5.
The light emitted from the light emitting unit 3 and the emitted light are diffused by the diffusion plate 4 to form a uniform clear background above the sucked electronic component, and the shape of the electronic component is imaged from below to determine the position of the suction position. After correction, the circuit board is freely moved up and down, left and right, or front and back, and the position-corrected electronic component is mounted at a predetermined position on the circuit board.

Electronic components mounted on a circuit board by this component mounting apparatus include those mounted on a plate and supplied, and those held on a carrier tape and supplied. The carrier tape holds a large number of identical electronic components and is attached to a reel-shaped cassette. This cassette is attached to the tape feeder. The work head 1 has a push rod 6 (6a, 6b, provided that the push rod 6b is provided near the suction nozzles 5a and 5b) for driving the tape feeder when sucking desired electronic components from the tape feeder. Invisible to each other). These push rods (pushers) 6 are driven back and forth by cylinders 7 (7a, 7b) arranged parallel to the vertical axis direction of the work head 1.

FIG. 8 is a perspective view of a tape feeder driven by the working head 1 to supply electronic components to the working head 1 and a mounting table on which the tape feeder is mounted. As shown in the figure, the tape feeder 10 has a component supply unit 11 formed at one end and a cassette support pin 12 at the other end. The cassette supporting pin 12 holds a cassette (not shown in the figure) to which a carrier tape is attached. Usually, a plurality of tape feeders 10 are prepared according to the number of types of electronic components mounted on the circuit board, and these tape feeders 10 are mounted on a mounting base (a component supply base of a component mounting device, a feeder table) 13. .

In this tape feeder 10, a tape feed rotating member 15, a drive swing rod 16 and a winding clutch plate 17 are arranged between the above-mentioned component supply section 11 and cassette supporting pin 12. . Driving swing rod 16
Has a substantially central portion supported by a support shaft 16-1 and swings left and right end portions up and down to rotate like a seesaw. One end (the end on the left side in the figure) of the drive swing rod 16 is connected to the arm-shaped projecting portion 15-1 of the tape feeding / rotating member 15 via a rod-shaped connecting member 18, and the other end. Is connected to the winding clutch plate 17 via another rod-shaped connecting member 19. Working head 1 shown in FIG.
However, when picking up electronic components from the tape feeder 10 shown in FIG.
The tape feeder 10 is driven to descend, and is pushed down from one end of the driving rocking rod 16 of the tape feeder 10 to push it down. As a result, the drive rod 16 for driving is rotated so that one end thereof is lowered and the other end thereof is raised.

The tape feeding / rotating member 15 includes a support shaft 15-
It is supported by 2 so as to be rotatable in the clockwise direction and the counterclockwise direction. The tape feeding / rotating member 15 is pushed clockwise by the projecting portion 15-1 from one end of the driving rocking rod 16 via the connecting member 18, and is rotated in the clockwise direction. By this rotation, the component supply unit 11
In detail, the sealing of the sealing claw 14-1 of the slide plate 14 described later is released. At the same time, when the pushing drive of the drive swing rod 16 is released, it is restored to the position before being pushed by the biasing force of the biasing member (not shown). By this restoration, the latch gear 21 that rotates coaxially with the support shaft 15-2 is rotated by a predetermined pitch. This rotation drives a winding mechanism (not shown) that engages with the latch gear 21, and the used end of the transport tape, which will be described in detail later, drawn from the cassette held by the cassette support pin 12 is moved to the left in the drawing. It is sent out, and thereby the unused portion is drawn into the component supply unit 11.

On the other hand, the take-up clutch plate 17 is also supported by a support shaft 17-1 so as to be rotatable in the clockwise direction and the counterclockwise direction. Take-up clutch plate 1
7 is pushed and driven upward from the other end of the drive swing rod 16 via the connecting member 19 to rotate clockwise.
On the other side of the drawing of the winding clutch plate 17, the reel 2
2 is detachably engaged. Take-up clutch plate 17
When is rotated in the clockwise direction by the pushing drive of the driving swing rod 16, the reel 22 rotates by a predetermined amount and successively winds the cover tape 24-2 of the transport tape described later. When restoring the pushing drive of the drive rocking rod 16,
The take-up clutch plate 17 idles counterclockwise.

FIG. 9 is an enlarged view of the tape feeder 10 in the vicinity of the component supply section 11 described above. As shown in the figure,
Into the component supply unit (component pick point) 11, the transport tape 24 pulled out from the cassette is fed from the right side to the left side indicated by arrow A in the figure. The transport tape 24 includes a base tape 24-1 and a cover tape 24-2. A large number of storage holes 24-3 are continuously provided in the base tape 24-1, and the electronic components 25 are stored in the storage holes 24-3. A play is provided between the storage hole 24-3 and the electronic component 25 so that the electronic component 25 can be easily taken out, and a cover is provided so that the electronic component 25 does not escape from the storage hole 24-3 due to, for example, vibration. A tape 24-2 is attached to the base tape 24-1 to seal the opening of the storage hole 24-3.

Stop pins 27 (27a, 27b) are provided at the front and rear of the base of the component supply section 11 of the tape feeder 10, and a holding plate 28 is fixed to the stop pins 27.
The slide plate 14 described above is provided between the holding plate 28 and the base portion.
Are sandwiched in a slidable manner in the front and back (from the diagonal upper left to the diagonal lower right in the figure). The slide plate 14 has a notch 14-
2 is formed, and the projection 15-3 provided on the tape feed rotating member 15 is fitted into and engaged with the notch 14-2.

As described above, the tape feed rotation member 15
When the projecting portion 15-1 receives a push drive from the driving swing rod 16 and rotates in the clockwise direction, the protruding portion 15-1
-3 also rotates in the clockwise direction to slide the slide plate 14 rearward through the notch 14-2 engaging with the same. Due to this sliding, the sealing claw 14-1 moves to release the sealing of the component pick point. By this release, the storage hole 2 from which the adhesive tape of the cover tape 24-2 has been peeled off
The electronic component 25 is exposed to the component supply unit 11 through the opening 4-3. This electronic component 25 is a work head 1 shown in FIG.
Are adsorbed by the adsorption nozzle 5.

[0013]

However, the above-mentioned taping component feeding device for driving the feeding member of the tape feeder by the push rod of the working head requires the push rod and the cylinder for driving the push rod on the working head side. Therefore, there is a problem that the structure of the working head becomes complicated and the apparatus price increases. In addition, there is also a problem that the efficiency of assembly and maintenance work is reduced due to the complicated structure. Not only that, but because of these mechanisms, the increase in the weight of the work head and the pipe arrangement for driving the cylinder become a bottleneck, and the work head cannot be operated at high speed. There was also a problem that the speeding up of component mounting work was hindered. In addition, until the work head moves to the position of the component feeder of the tape feeder and then the driving swing rod is pushed and driven, the electronic components are not picked up by the work head and mounted on the circuit board. This stagnation time is a wasteful time that cannot be ignored and is accumulated, and this aspect also has a problem that speeding up of electronic component mounting work is hindered.

However, in order to solve the problems of the excessive load of the work head and the stagnation time of the mounting operation and to increase the speed, it is known to provide a drive mechanism for the transport tape independently of the work head. Has been. This is because each tape feeder is provided with a cylinder and a push rod mechanism, and cylinder drive valves corresponding to these cylinders are arranged on the tape feeder mounting base side, and these cylinder drive valves and the cylinders are connected to each tape feeder. To communicate with each other through the cavity formed in the positioning pin, and individually control the cylinder drive valves so that the work head is driven before moving to pick up the electronic component. The transport tape of the tape feeder is driven by the cylinder and push rod mechanism. But this is
Since the communication part between the positioning pin and the cylinder drive valve has to be airtightly coupled by the engagement when the tape feeder is mounted, there is a problem that a high precision technique is required and therefore an expensive device is required. Further, since the tape feeder is provided with the cylinder and the push rod mechanism, there is a problem that the structure of the tape feeder becomes complicated and becomes large in size.

Further, in order to solve the above-mentioned various problems, there is also known one in which a drive mechanism for a conveying tape is provided independently of the working head and the tape feeder.
This is a transport tape drive mechanism in which the work head mounts the electronic components on the circuit board and the tape feeder to be driven next, together with the mounting base, is arranged independently of the work head and the tape feeder. Is moved at high speed to the position, and before the work head moves to the same position to start the operation of sucking the electronic component, the feeding of the transport tape of the tape feeder is completed. But this is
Since the mounting table on which a large number (usually 25 to 50) of tape feeders are mounted is moved, there is a problem that an extremely large drive source is required and power consumption becomes large, and the mounting table is moved. Requires a working space corresponding to twice the length of the mounting table in the moving direction, the size of the apparatus main body (component mounting apparatus) becomes large, and therefore,
On the one hand, there was a problem of pushing up the price, and on the other hand, reducing the installation area efficiency.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional circumstances,
A tape feeder capable of performing component mounting processing at high speed without overloading the working head, preventing obstruction to miniaturization of the component mounting apparatus, and permitting a slight variation in the arrangement of the drive source, and an easy assembly It is to provide a component mounting apparatus to be used.

[0017]

A first aspect of the present invention is to provide a holding section for holding tapes for accommodating electronic components at predetermined intervals, a component supplying section for supplying the electronic components, and a component supplying section for supplying the electronic components. A tape feeder comprising a feeding mechanism for intermittently feeding the tape from the holding section, and the feeding mechanism being driven by a driving source provided on a mounting table, the tape feeder being disposed on a rotating member of the feeding mechanism. Provided between the protruding arm and the protruding arm, which is arranged vertically and protrudes downward from the lower surface of the tape feeder, a holding shaft which rotatably holds the upper end of the protruding arm, and the rotating member and the protruding arm. A biasing member that biases the protruding arm in a direction in which the rotating member rotates in a direction opposite to the driven rotation direction of the rotating member, and the protruding arm causes the protruding arm to move. The protruding arm is placed on the rotating member in the rotating direction. When the protruding arm is pressed in the drive rotation direction of the rotating member by an external drive mechanism, the protruding arm has a stopper protruding from the rotating member to stop at the reference position. When the pressing is appropriate, the pressing member is rotated in the drive rotation direction together with the rotating member while being in contact with the stopper by the urging force of the urging member, and when the pressing is excessive, the urging force is applied. It is configured to rotate in a direction away from the stopper against the biasing force of the biasing member, and absorb the excessive pressure without transmitting to the rotating member.

Next, a second aspect of the present invention is a holding part for holding a tape for accommodating electronic parts at predetermined intervals, a part supplying part for supplying the electronic part, and a holding part for holding the tape to the part supplying part. A component mounting apparatus using a tape feeder provided with a feeding mechanism that intermittently feeds the tape from the apparatus, the mounting table being fixed to the apparatus main body and mounting a plurality of the tape feeders, and the mounting table disposed on the mounting table. A plurality of cylinders corresponding to the plurality of tape feeders mounted on the disk, and a plurality of solenoid valves disposed on the mounting table corresponding to the plurality of cylinders to selectively drive the plurality of cylinders. The tape feeder is arranged on the rotating member of the feeding mechanism, is arranged substantially vertically so as to project downward from the lower surface of the tape feeder, and the tape feeder is mounted on the mounting table. A holding shaft which holds the projecting arm is pressed, the upper end of the projecting Deude rotatably by the cylinder,
A biasing member that is provided between the rotating member and the projecting arm and that biases the projecting arm in a direction in which the projecting arm is rotated in a direction opposite to the driven rotating direction of the rotating member, A stopper projecting from the rotating member to stop the protruding arm at a reference position on the rotating member in a direction in which the protruding arm is rotated by the urging force of the urging member. When the projecting arm is pressed by the cylinder in the drive rotation direction of the rotating member, the projecting arm remains in contact with the stopper by the urging force of the urging member when the pressing is appropriate. When the pressing member is rotated in the driving rotation direction together with the rotating member and the pressing force is excessive, the rotating member is rotated in a direction away from the stopper against the urging force of the urging member, and the excess amount is increased. It is configured to absorb the pressure without transmitting it to the rotating member.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a drive source is provided on the side of a mounting table (fixed table) on which the tape feeder is mounted, independently of the work head and the tape feeder, to drive a desired tape feeder feeding mechanism. In addition, even if there is some variation in the arrangement of the driving source, the driving is not hindered. Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of a tape feeder used in a component mounting apparatus according to one embodiment and a mounting table on which the tape feeder is mounted. As shown in the figure, the tape feeder 30 has a component supply section 31 formed at one end and a cassette support pin 37 at the other end. To the cassette support pins 37, a cassette on which component transfer tapes that store predetermined electronic components (taping components) at predetermined intervals are attached is detachably mounted.

The component supply unit 31 includes a tape feed rotating member 32 rotatably supported by a support shaft 32-1 and a support shaft 32.
−1, a latch gear 33 that rotates coaxially with −1 at a predetermined pitch, and a protrusion 32 formed on the upper end of the tape feed rotation member 32 −
2, the slide plate 34 that engages with the protrusion 32-2 by the notch 34-1, the sealing claw 34-2 integrally formed with the slide plate 34, and the slide plate 34 as the base of the component supply unit 31. The pressing plate 35 that is slidably clamped by the stopper pin 36 (36a, which fixes the pressing plate 35 to the base).
36b) and the like.

The tape feeding / rotating member 32 and the support shaft 3
2-1, protrusion 32-2, latch gear 33, slide plate 34, notch 34-1, sealing claw 34-2, presser plate 3
5, the stopper pins 36a and 36b, including the portions not shown, are the tape feed rotation member 15, the support shaft 15-2, the protrusion 15-3, the latch gear 21, the slide plate 14, and the cut plate described in FIG. The notch portion 14-2, the sealing claw 14-1, the pressing plate 28, and the stop pins 27a and 27b have the same functions, respectively.

The component supply section 31 and the cassette support pin 3
7, a drive rotating member 38 rotatably supported by a support shaft 38-1 and a winding plate 39 rotatably supported by a support shaft 39-1 are disposed. This winding plate 39 also has the same function as the winding clutch plate 17 shown in FIG.

The drive rotating member 38 has a key-type drive arm, and the lateral arm 38-2 extending substantially horizontally from the support shaft 38-1 rearward (to the right in the drawing) has an end portion. It is connected to the lower end of a rod-shaped connecting member 41 arranged substantially vertically. The upper end of the connecting member 41 is connected to a winding clutch plate described later. Then, the lower arm 38-3 extending downward from the support shaft 38-1 is connected to the tape feeding / rotating member 32 via another rod-shaped connecting member 42 in which a substantially central portion of its side portion is arranged slightly horizontally. Is connected to a vertical arm 32-3 protruding in the vertical direction. A drive engagement member 45 is attached to the lower end of the lower arm 38-3. Drive engagement member 45
Has a vertical shaft 45-1 that locks to the lower end of the lower arm 38-3, and the tip of the vertical shaft 45-1 projects downward from the lower surface of the tape feeder 30. A pin 45-2 is projectingly provided at the tip of the vertical shaft 45-1 so as to wrap around the lower part of the main body of the tape feeder 30 at a right angle to the vertical shaft 45-1.

When the drive rotating member 38 rotates counterclockwise or clockwise, the operation of each of the above-described parts driven in association with the rotation is the same as that of the tape feeder shown in FIG. The driving swing rod 16 of 10 is the push rod 6
The operation is the same as that of each unit having the same function as described above in FIG. 8, which is driven in conjunction with the rocking in the counterclockwise direction or the clockwise direction by the driving of FIG.

However, in the present embodiment, the structure and operation of the drive rotating member 38 are different from those of the drive swing rod 16 shown in FIG. That is, the driving rotating member 38
The push drive against the mounting table 44 fixed to the main body of the device.
When the tape feeder 30 is mounted on the positioning rails 44-1a and 44-1b, it is performed by a cylinder, which will be described later, arranged on the lower surface of the rail connecting plate 44-2 of the mounting table 44. The cylinder includes a driving rotating member 38.
Pin 45-2 of the drive engagement member 45 of the lower arm 38-3
Engage.

FIG. 2A shows the tape feeder 30 with the tape feeder 30 mounted on the mounting table 44.
The side view and the cross-sectional view of the mounting table 44 are shown in FIG.
Only the mounting table 44 is shown in a plan view in (b). The figure
In (a) and (b), for simplification in FIG. 1, components not shown in the drawing are given new numbers, and the same components as those shown in FIG. The same number is given and shown. The numbers are omitted for some of them. The structure of this embodiment will be further described with reference to FIGS. 2 (a) and 2 (b).

A rotating member 38 for driving the tape feeder 30.
Is near the end of the lateral arm 38-2 and the tape feeder 30.
The spiral spring 47 having both ends locked to the main body constantly urges the support shaft 38-1 in the clockwise direction around the support shaft 38-1. The clockwise rotation due to this urging force causes the connecting member 42, the vertical arm 32-3, and the protrusion 32 to rotate.
2 (hereinafter, refer to FIG. 1), the notch portion 34-1, and the slide plate 34 to move the sealing claw 34-2 to the rearward direction of the tape feeder 30 to seal the sealing claw 34-2. At the position, the protruding portion 32-2 is configured to come into contact with the pressing plate 28 and stop. FIG. 2A shows the stopped state (reference state). Further, the driving rotating member 38
Is rotated by a cylinder, which will be described later, to stop at a predetermined tape feed amount when it rotates in a counterclockwise direction, the stopper 53 rotates the counterclockwise direction of the lower arm 38-3 on the side surface of the tape feeder 30. It is arranged in the moving direction. The upper end of the connecting member 41 is connected to the connecting arm 39-1 of the winding clutch plate 39, and the reel 22 is engaged with the winding clutch plate 39.

Latch claws 48 and 49 are engaged with the latch gear 33 of the component supply section 31. The latch claw 48 is
The rear end is supported by the tape feeder 30 main body, and the rear end is biased by the pulling biasing force of the spiral spring 51, and the claw at the front end meshes with the latch gear 33. Further, the latch claw 49 is supported by the vertical arm 32-3 of the tape feeding rotation member 32, and the winding spring 5
It is urged counterclockwise by the return urging force of 2, and the claw at the tip engages with the latch gear 33.

On the other hand, the mounting base 44 is a base 46 of the apparatus main body.
The number of cylinders 55 corresponding to the tape feeders fixed and mounted (mounted) on the bottom surface of the rail connecting plate 44-2 are provided. In these cylinders 55, the rear portion of the cylinder faces the front of the tape feeder 30, and the piston 55-
1 is arranged so that the front end of the tape feeder 1 faces the rearward direction of the tape feeder 30. Further, as many solenoid valves 56 as the number of cylinders 55 are arranged on the device base 44, and each joint 55-1 and joint 56-1 are arranged as indicated by a chain double-dashed line B in FIG. 2 (b). , Connected by a connecting pipe. The positioning rails 44-1a and 44-1b of the mounting table 44 are provided with positioning fitting holes 44-3a and 44-3b corresponding to the tape feeders 30 to be mounted, respectively.

The tape feeder 30 has positioning pins 57a and 57 for properly mounting and fitting the mounting table 44.
b are arranged at both ends of the lower surface (front end and rear end). As shown in FIG. 2A, when the tape feeder 30 is mounted on the mounting base 44, the tip of the piston 55-1 of the cylinder 55 drives the feeding mechanism of the tape feeder 30 by these positioning pins 57a and 57b. Pin 4 which is the engaging part
Face 5-2.

The pin 45-2, that is, the tip of the drive engagement member 45 is formed so as to project downward from the lower surface of the tape feeder 30 as described above.
As shown in FIG. 5, the positioning pins 57a and 57b are recessed upward by an appropriate step C so as not to project downward from the tips. As a result, when the tape feeder 30 is removed from the mounting table and stored in a storage shelf or the like, the tip of the positioning pin can be directly brought into contact with the storage shelf and can be stored in a stable posture with two-point support. It is convenient because there is no need to prepare a holding table etc. In addition, since it can be mounted on a flat surface by two-point support in this way, and even if it is mounted on a flat surface in this way, there is no risk of damaging the drive engagement member 45 protruding to the lower surface, so in actual operation Frequent tape feeder 30
Even in the replacement work, it is easy to temporarily mount the tape feeder 30 on an appropriate table or floor near the work position, which improves work efficiency.

The operation of taping component supply in the present embodiment in which the taping component supply device is constituted by the engagement of the tape feeder 30 and the mounting table 44 as described above will be described.

FIG. 3 is a state diagram of the taping component supply operation in the present embodiment, and is a side view of the same configuration as FIG. 2 (a). The taping component feeding operation will be described with reference to FIG. 3 and FIG. 2 (a) again. still,
In FIG. 3, only the parts necessary for explanation are shown with the same numbers as in FIG. 2 (a). Further, the illustration of the carrier tape (see FIG. 9) drawn from the cassette supported by the cassette support pin 37 (see FIG. 1) (not shown) to the component supply unit 31 is omitted. Also, although this is not particularly shown,
The work head of the component mounting apparatus according to the present embodiment does not include the push rod 6 and the cylinder 7 as shown in FIG. 7, and is accordingly simpler and lighter in weight, and can be driven at a high speed with a smaller driving force. It can be moved.

First, in the standard stop state shown in FIG. 2A, a desired tape feeder 30 is selected by a control unit (not shown) based on the electronic component mounting processing specification, and the component supply unit of the tape feeder 30 is selected. While the work head moves to the position 31, the solenoid valve 56 corresponding to the tape feeder 30 is driven to open. As a result, the piston 55-1 of the cylinder 55 advances, and the tip of the piston 55-1 of the drive rotation member 38 is pin 4 of the drive engagement member 45.
Abut on 5-2.

The piston 55-1 is, as shown in FIG.
Further advance, via pin 45-2, vertical shaft 45-1,
The entire drive rotation member 38 is rotated counterclockwise until the lower arm 38-3 of the drive rotation member 38 comes into contact with the stopper 53 and stops. As a result, the take-up clutch plate 39 is rotated in the clockwise direction by the horizontal arm 38-2 to rotate the reel 22 by a predetermined pitch, and this rotation causes the reel 22 to convey in the component supply unit 31 not shown. The cover tape of the tape is wound up (see FIG. 9), and the cover tape is separated from the base tape by one electronic component.

On the other hand, similarly, by rotating in the counterclockwise direction, the tape feed rotating member 3 is moved by the lower arm 38-3.
2 rotates counterclockwise. By this rotation, the latch claw 49 provided on the vertical arm 32-3 moves in the counterclockwise direction together with the vertical arm 32-3 with the tip of the latch gear 33 engaged with the latch gear 33, and the latch gear 33 is moved by a predetermined pitch. Rotate counterclockwise. The latch claw 48 on the main body side of the tape feeder 30 slides on the back of the teeth of the latch gear 33,
When the latch gear 33 is stopped, the toes of the latch gear 33 are meshed with the roots of the teeth so that the reverse rotation of the latch gear 33 is prohibited.

By the rotation of the latch gear 33, a tape feeding member (not shown) engaged with the latch gear 33 is driven, and the tape feeding member feeds the carrier tape by one electronic component forward of the tape feeder 30 and the cover tape. The electronic component stored in the storage hole of the base tape peeled off is positioned at the component pick position of the component supply unit 31. Also,
At the same time, the protrusion 32-2 of the vertical arm 32-3 moves the slide plate 34 in the front direction of the tape feeder 30 to release the sealing of the component pick position by the sealing claw 34-2. As a result, the electronic parts housed in the housing hole of the base tape from which the cover tape has been peeled off are transferred to the parts supply unit 3.
It is exposed to the outside at the part pick position of 1. The work head that has moved to this component pick position adsorbs the electronic component.

Then, the solenoid valve 56 is closed and the drive of the piston 55-1 of the cylinder 55 is released. As a result, as shown in FIG. 2 (a), the spiral spring 47
The driving rotating member 38 is rotated in the clockwise direction to the reference stop position by the urging force of. By this rotation, the take-up clutch plate 39 makes an idle rotation in the counterclockwise direction, returns to the reference stop, and waits for the next drive, and the latch claw 49 causes the back of the latch gear 33 whose reverse rotation is prohibited. While sliding, it moves counterclockwise with the vertical arm 32-3 and stops at the reference position to wait for the next drive.

The overall basic structure and the basic operation thereof in the present embodiment have been described above, but the portions of the above embodiments, which are not shown and described, will be described. FIG. 4A is a diagram showing in detail the configuration of the vertical shaft 45-1 in the tape feeder 30 described above. As shown in the figure, the vertical shaft 45-1 is not integrally fixed to the drive engagement member 45, but is loosely attached to the drive engagement member 45 and fixed in position by the biasing member. FIG. 6B is a diagram showing the operation state of the taping component supply. 1A and 1B, the components having the same functions as those shown in FIGS. 1 to 3 are given the same numbers as those in FIGS. 1 to 3. .

As shown in FIG. 4A, the connecting member 4 is provided at the side.
Lower arm 38-
At the lower end of 3, the vertical shaft 45-1 is rotatably supported by the support pin 61, is urged in the counterclockwise direction by the spring 62, and is in contact with the stopper 63. The position is fixed as the reference position. As shown in (b) of the figure, when the rear portion of the cylinder 55 is arranged with a slight gap from the positioning rail 44-1a due to variations in arrangement at the time of arrangement, etc. In the standard stop state shown in FIG. 2 (a), since there is no clearance between the tip of the piston 55-1 and the pin 45-2 of the drive engagement member 45, the cylinder 55 is operated at a predetermined air pressure. When driven, piston 5 against pin 45-2
The advancing pressure of 5-1 may be too strong, causing a problem.

Even in such a case, with the structure shown in FIG. 4 (a), as shown in FIG. 4 (b), the cylinder 55 is driven to advance the piston 55-1 and move the pin 45-2. Also, the drive rotating member 38 can be rotated counterclockwise to the stop position by the stopper 53 via the vertical shaft 45-1. In this case, the spring 62 shown in FIG.
It has an urging force enough to press the vertical shaft 45-1 against the stopper 63 against the pressing of the piston 55-1.
As a result, the drive rotating member 38 rotates to the stop position of the stopper 53 in response to the advance of the piston 55-1. After this stop, the piston 55-1 continues to advance relative to the pin 45-2 due to the above-mentioned variation in the arrangement position, but the pressing of the piston 55-1 is performed by the spring 6
Only the vertical shaft 45-1 overcomes the biasing force of 2 and the supporting shaft 6
Rotate counterclockwise about 1. As a result, the excessive advance of the piston 55-1 is absorbed.

In each of the above-described embodiments, the case where the small taping component is supplied is given. However, the electronic component has lead wires arranged on four sides of the chip, for example, a width of 3 cm. There are large chip parts that are more than the above. These large electronic components are also supplied as taping components. The component mounting apparatus of the present invention can also supply such a large taping component.

FIG. 5 is a side view of a large-sized tape feeder for supplying such a large-sized taping component, and is shown together with the mounting table 44. In addition, FIG. 6 is a diagram showing an operating state of the large tape feeder. The structures of the mounting base 44 of FIGS. 5 and 6, the cylinder 55 disposed therein, and the solenoid valve 56 for driving the cylinder 55 are the same as those shown in FIG. 2 (a).

As shown in FIG. 5, the large tape feeder 65 is composed of a mounting portion 67 having a component supply portion 66 shown on the left side of the figure and a cassette support portion 68 shown on the right side of the figure. . The cassette support portion 68 includes a pin 71 that supports a cassette on which a transport tape is attached, a reel 72 that winds a cover tape separated from the transport tape, and a large cylinder that drives a supply mechanism of the component supply portion 68 with a piston 73-1. 73, a mechanical valve 74 for driving the large cylinder 73, and the like are provided, and have substantially the same configuration as the cassette support portion of a commonly used large tape feeder. The mechanical valve 74 is operated by a switch 75 being mechanically pressed from the outside to supply high-pressure air injected from a pneumatic pipe of the apparatus main body through the joint 70 to the large cylinder 73.

The component supply unit 66 of the mounting unit 67 has the same structure as the component supply unit of a general large tape feeder. The component supply unit is intermittently driven by the latch gear 76. The latch gear 76 includes a tape feed rotation member 77 and a vertical arm 77-1 of the tape feed rotation member 77.
And the other latch claw 79 provided on the side surface of the mounting portion 67 engages. The functions of the latch gear 76, the tape feed rotation member 77, the vertical arm 77-1, the latch claws 78, and 79 are the same as those of the latch gear 33, the tape feed rotation member 32, and the vertical arm 32- shown in FIG.
3, the function of the latch claws 49 and 48 is similar.

A driving rotating member 81 arranged vertically in the substantial center of the mounting portion 67 is supported at its upper end by a support shaft 82 so that its lower end can rotate left and right. Drive rotation member 8
As in the case of the vertical shaft 45-1 of the tape feeder 30 shown in FIG. 2 (a), the lower end of 1 protrudes below the lower surface of the mounting portion 67, and in this case as well, it is mounted in the direction perpendicular to the shaft. A pin 83 is provided so as to surround the lower surface of the portion 67. This pin 83 is similar to the pin 45-2 shown in FIG. 2 (a) and is the piston 55- of the cylinder 55 on the mounting base 44 side.
Face up to 1.

A rod-shaped connecting member 84 extending to the cassette supporting portion 68 is disposed in the approximate center of the driving rotating member 81.
The left end of is engaged. The right end of the connecting member 84 engages with the left end of a V-shaped switching member 85 arranged on the cassette supporting portion 68. The V-shaped lower part of the switching member 85 is rotatably supported by the support shaft 86, and the right end outside is in contact with the head part of the switch 75.

On the other hand, the piston 73- of the large cylinder 73
1 is connected to the right end of a rod-shaped connecting member 89 arranged substantially horizontally on the mounting portion 67 via the rotating member 87. The left end of the connecting member 89 is connected to the vertical arm 77-1 of the tape feeding rotating member 77 of the mounting portion 67 described above.

As described above, the drive rotating member 81 includes the connecting member 84, the switching member 85, the switch 75, the mechanical valve 74, the large cylinder 73, and the piston 73.
-1, mechanically communicates with the vertical arm 77-1 of the tape feeding rotational member 77 via the rotational member 87 and the connecting member 89.

In this structure, when the cylinder 55 is driven by the solenoid valve 56, as shown in FIG. 6, the piston 55-1 of the cylinder 55 advances to the right and the pin 83 of the driving rotary member 81. Press. As a result, the drive rotating member 81 rotates counterclockwise about the support shaft 82. By this rotation, the connecting member 84
Moves to the right to rotate the switching member 85 in the clockwise direction. By this rotation, the switch 75 is pressed and the mechanical valve 74 is opened. By this opening, the large cylinder 73 is driven and the piston 73-1 advances. With this advance, the rotating member 87 rotates counterclockwise around the support shaft 88. This rotation causes the connecting member 87 to move to the left, and this movement causes the tape feed rotating member 77 to rotate in the clockwise direction by a predetermined angle. As a result, the large-scale taping component is supplied to the component supply unit 66.

[0052]

As described above, according to the present invention,
Conveyance of tape feeder When the tape feeding mechanism is driven by the drive unit installed on the mounting table side, the driven vertical shaft on the tape feeder side is loosely attached to the drive rotation member and the position is fixed by the biasing member. As a result, even if there are variations in the arrangement of the drive sources installed on the mounting table, variations in the drive pressure due to variations in the arrangement can be absorbed by the floating vertical shaft to be driven. Since it is easy and the driving is not unreasonable, the component supplying operation can be performed at high speed.

[Brief description of drawings]

FIG. 1 is a perspective view showing a basic configuration of a tape feeder used in a component mounting apparatus according to an embodiment and a mounting table on which the tape feeder is mounted.

FIG. 2A is a side view of the tape feeder in a state where the tape feeder is mounted on the mounting table and a sectional view of the mounting table, and FIG. 2B is a plan view of only the mounting table.

FIG. 3 is a diagram showing an operation state of supplying a taping component of the component mounting apparatus.

FIG. 4A is a diagram showing a detailed configuration of a vertical shaft and a driving engagement member, and FIG. 4B is a state diagram of a feeding operation of the taping component.

FIG. 5 is a diagram showing a large-sized tape feeder for supplying a large-sized taping component.

FIG. 6 is a diagram showing an operating state of a large tape feeder.

FIG. 7 is a perspective view of a conventional working head.

FIG. 8 is a perspective view of a conventional tape feeder and a mounting table.

FIG. 9: Parts feeder of tape feeder (part pick point)
It is an enlarged view of the vicinity.

[Explanation of symbols]

 1 Working Head 2 Belt-shaped Cord 3 (3a, 3b) Light Emitting Part 4 (4a, 4b) Diffusion Plate 5 (5a, 5b) Suction Nozzle 6 (6a, 6b) Push Rod (Pusher) 7 (7a, 7b) Cylinder 10 Tape Feeder 11 Component supply unit 12 Cassette support pin 13 Mounting table (component supply table, feeder table) 14 Slide plate 14-1 Sealing claw 14-2 Cutout section 15 Tape feed rotating member 15-1 Overhanging section 15-2 Support Shaft 15-3 Protrusion 16 Drive oscillating rod 16-1 Support shaft 17 Winding clutch plate 17-1 Support shaft 18, 19 Connecting member 21 Latch gear 22 Reel 24 Transport tape 24-1 Base tape 24-2 Cover tape 24 -3 Storage hole 25 Electronic component 27 (27a, 27b) Fixing pin 28 Holding plate 30 Tape feeder 31 parts Item supply section 32 Tape feed rotation member 32-1 Support shaft 32-2 Projection section 32-3 Vertical arm 33 Latch gear 34 Sliding plate 34-1 Notch section 34-2 Sealing claw 35 Pressing plate 36a, 36b Stopping pin 37 Cassette support pin 38 Rotating member for driving 38-1 Support shaft 38-2 Horizontal arm 38-3 Lower arm 39 Take-up clutch plate 39-1 Support shaft 41, 42 Connecting member 44 Mounting base 44-1a, 44-1b Positioning Rail 44-2 Connection plate 44-3a, 44-3b Fitting hole 45 Drive engagement member 45-1 Vertical shaft 45-2 Pin 46 Base of device body 47 Spiral spring 48, 49 Latch claw 51 Spiral spring 52 Winding Spring 53 Stopper 55 Cylinder 55-1 Piston 55-1, 56-1 Joint 56 Solenoid valve 57a, 57b Positioning pin 6 1 Support Pin 62 Spring 65 Large Tape Feeder 66 Component Supply Section 67 Mounting Section 68 Cassette Support Section 70 Joint 71 Pin 72 Reel 73 Large Cylinder 73-1 Piston 74 Mechanical Valve 75 Switch 76 Latch Gear 77 Tape Feed Rotating Member 77-1 Vertical Arms 78, 79 Latch claws 81 Driven rotating member 82 Support shaft 83 Pins 84, 89 Connecting member 85 Switching member 86, 88 Support shaft 87 Rotating member

Claims (2)

[Claims] 1. A holding part for holding tapes for accommodating electronic parts at predetermined intervals, a part supplying part for supplying the electronic parts, and a feeding for intermittently feeding the tape from the holding parts to the part supplying part. And a mechanism for driving the feed mechanism by a drive source provided on a mounting table, the tape feeder being disposed on a rotating member of the feed mechanism and protruding downward from a lower surface of the tape feeder. A substantially vertically arranged protruding arm, a holding shaft that rotatably holds the upper end of the protruding arm, and a protruding arm that is provided between the rotating member and the protruding arm and that has the protruding arm as the center. An urging member that urges the rotating member in a direction in which it rotates in a direction opposite to the driven rotation direction, and the protruding arm rotates in the direction in which the protruding arm rotates due to the urging force of the urging member. This time to stop at the reference position on the moving member A stopper provided on the member, and when the protruding arm is pressed in the drive rotation direction of the rotating member by an external drive mechanism, the protruding arm is pressed when the pressing is appropriate. Is rotated in the drive rotation direction together with the rotation member while being in contact with the stopper by the urging force of the urging member, and resists the urging force of the urging member when the pressing is excessive. The tape feeder is configured to rotate in a direction away from the stopper so as to absorb the excessive pressure without being transmitted to the rotating member. 2. A holding section for holding a tape for accommodating electronic components at predetermined intervals, a component supplying section for supplying the electronic component, and a feeding for intermittently feeding the tape from the retaining section to the component supplying section. A component mounting apparatus using a tape feeder including a mechanism, comprising: a mounting base fixed to the apparatus main body and mounting a plurality of the tape feeders; and a plurality of mounting bases mounted on the mounting base. A plurality of cylinders corresponding to the tape feeder, and a plurality of solenoid valves disposed on the mounting table corresponding to the plurality of cylinders to selectively drive the plurality of cylinders. Is arranged on the rotating member of the feeding mechanism and is arranged substantially vertically so as to project downward from the lower surface of the tape feeder, and when the tape feeder is mounted on the mounting table, the cylinder A protruding arm that is pressed by a dam, a holding shaft that rotatably holds the upper end of the protruding arm, and a rotating shaft that is provided between the rotating member and the protruding arm and that has the protruding arm as the center. A biasing member that biases the moving member in a direction in which it rotates in a direction opposite to the driven rotation direction, and the rotating member that rotates the projecting arm in a direction in which the projecting arm rotates by the biasing force of the biasing member. A stopper projecting from the rotating member so as to stop at the upper reference position; and when the protruding arm is pressed by the cylinder in the drive rotating direction of the rotating member, the protruding arm Is rotated in the drive rotation direction together with the rotation member while being in contact with the stopper by the urging force of the urging member when the pressing is appropriate, and when the pressing is excessive, It rotates in the direction away from the stopper against the urging force of the urging member. Component mounting apparatus characterized by being configured to absorb without transmitting the pressure of the excess to the rotary member.