JP2522382Y2 - Electronic component storage tape reel remaining amount detection type support mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to an electronic component mounting machine for mounting an electronic component on a printed circuit board using the electronic component storage tape. The present invention relates to a support mechanism for detecting a remaining amount of an electronic component storage tape reel having a function of detecting a remaining amount of the electronic component storage tape reel of the component storage tape reel and facilitating replacement of the electronic component storage tape reel.

(Summary of the Invention) The present invention relates to a support mechanism for detecting the remaining amount of an electronic component storage tape reel, wherein the electronic component storage tape reel is wound around the electronic component storage tape reel by a detection lever in contact with the outer periphery of the electronic component storage tape. The remaining amount of the component storage tape can be detected and the reel holding plate for holding the electronic component storage tape reel can be rotated about the pivot point of the reel stand as a fulcrum to facilitate the replacement of the electronic component storage tape. It was done.

2. Description of the Related Art Conventionally, in an electronic component mounting machine proposed by the present applicant in JP-A-61-264788, a tape feeder is provided by extracting an electronic component storage tape from an electronic component storage tape reel formed by winding the electronic component storage tape. A configuration is disclosed in which the electronic component housing tape can be sucked by peeling off the cover tape of the electronic component housing tape just before the suction position by the suction pin in the tape feeder.

By the way, if the electronic component storage tape runs out during the operation of the electronic component mounting machine, it is necessary to stop the electronic component mounting machine and replace it with a new electronic component storage tape reel. If the remaining amount of tape cannot be detected, it takes time to replace the tape reel with a new electronic component storage tape reel, which tends to reduce the operation rate of the electronic component mounting machine.

In view of this, Japanese Patent Laid-Open Publication No. Hei 1-208900 proposes that a supply device be provided with a component shortage advance detection device.

(Problems to be Solved by the Invention) However, the presence of the detection lever for the pre-detection of component exhaustion tends to hinder the replacement work of the electronic component storage tape reel, and there is a need to improve the reel replacement workability. . In addition, when a large number of tape feeders are arranged in parallel, an empty space is reduced, so that it is necessary to consider the reel replacement work at this time.

Further, it is also desirable to be able to add the electronic component storage tape in order to continuously operate the electronic component mounting machine without stopping.

In view of the above, the present invention detects the remaining amount of the electronic component storage tape reel and detects the remaining amount of the electronic component storage tape reel so that the replacement operation of the electronic component storage tape reel can be performed efficiently. It is an object to provide a type support mechanism.

(Means for Solving the Problems) In order to achieve the above object, the present invention is to fix a reel stand to a tape feeder main body frame arranged on a mounting table, and attach a reel holding plate to an end of the reel stand. A fulcrum pin that pivotally supports an electronic component storage tape reel formed by winding an electronic component storage tape is provided on the reel holding plate, and a butt edge of the reel holding plate is connected to a butt edge of the reel stand. A locking means for locking the electronic component storage tape reel in a state, wherein a detection lever biased by a spring such that one end thereof is in contact with an outer periphery of the electronic component storage tape of the electronic component storage tape reel is pivotally supported on the reel stand side, and A detecting means for detecting the position of the other end of the detection lever when the remaining amount of the tape is reduced is provided on the mounting table side.

(Operation) The remaining amount detection type support mechanism of the electronic component storage tape reel of the present invention uses the detection lever that comes into contact with the outer periphery of the electronic component storage tape of the electronic component storage tape reel formed by winding the electronic component storage tape. The remaining amount can be detected, and by rotating the reel holding plate about the pivot point of the reel stand as a rotation center, the reel holding plate can be pulled out to a position where the replacement operation of the electronic component storage tape reel can be easily performed. Even when a large number of tape feeders using component storage tapes are arranged in parallel and there is not enough free space in the lateral direction, the electronic component storage tape reel can be efficiently replaced. Further, the detection means for detecting the position of the detection lever is provided on the mounting table side, and can be shared by various tape feeders, and there is an advantage that it is not necessary to provide a wiring for the detection means in the tape feeder.

(Embodiment) Hereinafter, an embodiment of a remaining amount detection type support mechanism of an electronic component storage tape reel according to the present invention will be described with reference to the drawings.

1 to 3, reference numeral 1 denotes a mounting table on the chip component mounting machine side of the electronic component. On the mounting table 1, the main body frame 3 of the tape feeder 2 mounts the main body frame hook 4 on the mounting table side of the lock pin. 5 to be mounted and fixed.

The tape feeder 2 is an electronic component storage tape shown in FIG.
Wheel 6 with intermittent feed pin for intermittent transfer of 10
It has. That is, the electronic component storage tape 10 has storage recesses 11 at equal intervals, and the chip components 12
And the opening of the storage recess 11 is closed by a cover tape 13 that is peelably attached. Also,
The wheel 6 with the intermittent feed pin is
The electronic component storage tape 10 is advanced by an arrangement interval of the storage recess 11 by having a pin which engages with the feed hole of
By a separately provided cover tape peeling means 7, the cover tape 13 is positioned just before the suction position P of the chip component 12 by the suction pin 20.
Is to be peeled off.

A reel stand 21 is connected to and fixed to the main body frame 3 of the tape feeder 2, and a reel holding plate 23 is pivotally mounted on the upper right end of the reel stand 21 by a pin 22. A fulcrum pin 24 is fixed to the reel holding plate 23,
The fulcrum pin 24 has an electronic component storage tape 1 on the reel body 25A.
The electronic component storage tape reel 25 around which 0 is wound is fitted.

Note that the reel holding plate 23 has a reinforcing piece 23A that abuts on the back surface of the reel stand 21, and the reel stand 21 has a reinforcing tongue piece 21A that abuts on the back surface of the reel holding plate 23, and the reinforcing piece Reinforcement support plate 2 that contacts the back of section 23A
1B has one. Further, a locking member 27 which engages with a pin 26 fixed to the reel holding plate 23 side is provided on the reel stand 21.
It is pivoted at the lower right end of the. The tip of the locking member 27 is a hook, and is urged by a spring 28 in a direction to engage with the pin 26. A reel retainer 29 is pivotally attached to the reel holding plate 23, and the reel retainer 29 is urged by a spring 30 in a direction in which it comes into contact with the outer peripheral edge of the reel. The reel presser 29 contacts the outer peripheral edge of the reel body 25A to generate a predetermined frictional force when the electronic component storage tape reel 25 rotates. Further, an intermediate portion of the detection lever 31 is pivotally attached to the reel stand 21 at a fulcrum Q, and a lever extension spring 32 disposed between the left end of the detection lever 31 and the reel stand 21 has a right end of the lever body 25A. It comes into contact with the outer peripheral surface of the electronic component storage tape 10 wound around. A permanent magnet 33 is provided at the left end of the detection lever 31.
Is fixed, and a Hall element 35 is arranged on the mounting table 1 side to detect a magnetic field generated by the permanent magnet 33. That is, the Hall element 35 is a mounting fixture fixed to the mounting table 1.
34 is provided on the surface facing the tip of the detection lever 31. When the diameter of the electronic component storage tape 10 of the electronic component storage tape reel 25 decreases to a set value, the Hall element 35 is at a position that is activated by the magnetic field of the corresponding permanent magnet 33 of the detection lever. Reference numeral 36 denotes a stopper pin for restricting the rotation range of the detection lever 31.

In the configuration of the above-described embodiment, the reel holding plate 23 in the normal state to which the electronic component storage tape reel 25 is mounted is locked and held by the locking tool 27 with its butting edge connected to the butting edge of the reel stand 21. The reinforcing piece 23A on the reel holding plate side is fitted between the reel stand 21 and the reel stand side reinforcing support plate 21B. Then, the fourth component pulled out from the electronic component storage tape reel 25 is
As shown, the electronic component storage tape 10 passes over the receiving guide formed by the main body frame 3 of the tape feeder 2 and is sequentially sent to the suction position P with the intermittent rotation of the wheel 6 with the intermittent feed pin. The chip portions 12 exposed by the peeling of the cover tape 13 before P are sequentially taken out by the suction pins 20 on the electronic component mounting machine side, and the mounting operation on a predetermined printed circuit board is executed. The electronic component storage tape wound on the electronic component storage tape reel 25 by repeating such mounting operation of the chip component 12.
The diameter of 10 gradually decreases. Then, when the detection lever 31 falls to a predetermined set value, the detection lever 31 becomes as shown by a virtual line R in FIG.
The Hall element 35 in the state of being in close proximity to 33 is operated, and the remaining amount of the electronic component storage tape 10, that is, the remaining amount of the chip components stored in the tape is reduced by the voltage output caused by the Hall effect of the Hall element 35. Can be detected. In this state, the operator can prepare in advance so that the electronic component storage tape reel to be refilled next can be exchanged, and when the reel is empty, the new electronic component storage tape reel 25 is quickly replaced with the reel holding plate 23. Can be attached to Furthermore, if necessary, the end of the existing electronic component storage tape 10 and the tip of the newly mounted electronic component storage tape reel 25 can be connected to continuously operate the electronic component mounting machine. .

The electronic component storage tape reel 25 must be replaced with a lock
27 is rotated as shown by the arrow S to disengage the hook at the tip and the pin 26, and the reel holding plate 23 is rotated about the pivot point of the pin 22 to the reel stand 21 as shown in FIG. In this state, the empty reel is removed and a new electronic component storage tape reel is drawn out as shown in FIGS.
Perform by attaching 25.

As shown in FIG. 5, the electronic component storage tape reel 25 can be replaced while the reel holding plate 23 is pulled out, so that there are a number of similar tape feeders 2 arranged in parallel and there is not enough free space in the lateral direction. However, the replacement work of the electronic component storage tape reel 25 can be efficiently performed.

FIG. 6 shows another embodiment of the present invention. In this case, an optical sensor 40 composed of a set of a light emitting element and a light receiving element is used instead of the Hall element. That is, the optical sensor 40 is disposed on the fixture 34 fixed to the mounting table 1, and the tip of the detection lever 31 can cross the light emitting element and the light receiving element. The height position of the optical sensor 40 is such that when the diameter of the electronic component storage tape 10 of the electronic component storage tape reel 25 decreases to a set value, the corresponding detection lever tip shuts off the light emitting element and the light receiving element. Is set to The other configuration is the same as that of the above-described embodiment.

(Effect of the Invention) As described above, according to the electronic component storage tape reel remaining amount detection type support mechanism of the present invention, the detection lever detects that the remaining amount of the electronic component storage tape reel has decreased. In addition to the above, the replacement operation of the electronic component storage tape reel can be performed extremely easily, and the operation rate of the electronic component mounting machine can be improved.

[Brief description of the drawings]

1 is a front view showing an embodiment of a support mechanism for detecting the remaining amount of the electronic component storage tape reel according to the present invention, FIG. 2 is a front view showing a state when the electronic component storage tape reel is replaced, and FIG. FIG. 4 is a plan view showing an electronic component storage tape reel and a peripheral mechanism thereof. FIG. 4 is a front sectional view showing an example of the electronic component storage tape. FIG. FIG. 6 is a plan view showing a case where a plurality of support mechanisms are arranged in parallel, and FIG. 6 is a front view showing another embodiment of the present invention. 1 mounting table 2 tape feeder 3 body frame 6 wheels with intermittent feed pins 10 electronic component storage tape 12 chip components 20 suction pins 21
…… Reel stand, 23 …… Reel holding plate, 24 …… Support pin, 25 …… Electronic component storage tape reel, 27 …… Locking tool, 29 …… Reel presser, 31 …… Detection lever, 33 …… Permanent Magnet, 35: Hall element, 40: Optical sensor.

Claims (1)

(57) [Scope of request for utility model registration] 1. An electronic component storage device comprising: a reel stand fixed to a tape feeder main body frame disposed on a mounting table; a reel holding plate pivotally attached to an end of the reel stand; and an electronic component storage tape wound thereon. A fulcrum pin for rotatably supporting a tape reel is provided on the reel holding plate, and a locking means for locking a mating edge of the reel holding plate to a mating edge of the reel stand in a connected state is provided. A detection lever biased by a spring so that one end thereof is in contact with the outer periphery of the electronic component storage tape of the reel is pivotally supported on the reel stand side, and the other end position of the detection lever when the remaining amount of the electronic component storage tape is reduced A detection mechanism for detecting the remaining amount of the electronic component storage tape reel, wherein a detection means for detecting the remaining amount is provided on the mounting table side.