JPH0247872B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is an electronic component supply device that sequentially supplies electronic components that have been aligned and held on a tape to predetermined positions in automatic mounting equipment that mounts electronic components on printed circuit boards. It is related to the device.

Structure of a conventional example and its problems A conventional electronic component supply device will be explained with reference to FIG. In FIG. 1, 1 is an electronic component, 2 is a tape that holds the electronic components in alignment, 2a is a top tape pasted on the top surface of the tape 2, 3 is a parts cassette that holds the tape 2, and 4 is a parts cassette that holds the tape 2 in order.
5 is a tape presser A that holds the tape 2 from above; 6 is a feed lever that presses the feed wheel 4; 7 is a reel that winds up the top tape 2a; 8 is a drive shaft that rotates the reel 7 by friction; Reference numeral 9 denotes a nozzle for sucking the electronic component 1.

The operation will be explained below. First, the feed lever 6 is lowered, and the tape 2 is fed one pitch by the feed wheel 4 rotatably attached to the parts cassette 3. In parallel with this, the top tape 2a is wound onto the reel 7 due to the friction between the drive shaft 8 and the reel 7, and the nozzle 9 descends to suction the electronic component 1 from the notch of the tape presser 5. However, with the above configuration, the static electricity generated when winding the top tape 2a may lift the electronic components,
If the electronic component 1 is damaged due to vibration when the tape 2 is fed one pitch by the feed wheel 4, or if the top tape 2a is peeled off poorly, the winding may be delayed.
This has disadvantages in that an unfavorable condition occurs at the same time, such as when the nozzle 9 is lowered and the winding is not completed yet, and the supply state of the electronic component 1 is unstable.

OBJECTS OF THE INVENTION In view of the above drawbacks, the present invention provides an electronic component feeding device that stabilizes the feeding state of electronic components aligned and held on a tape.

Composition of the Invention The present invention includes a parts cassette holding a tape holding a plurality of electronic components in alignment, a window for electronic component suction, and an upper surface of the tape located behind the window for holding down the top surface of the tape included in the parts cassette. a winding slit smaller than the dimensions of the electronic component for winding up the top tape affixed to the top tape, a tape presser equipped with two guide pins for the top tape, a feed lever that feeds the parts cassette one pitch at a time, and the feed lever. It consists of a pusher that is fixed to the feed lever and moves in synchronization with the feed lever to forcefully press the top tape, a reel that winds up the top tape, and a drive shaft that rotates the reel using frictional force. Since the electronic component is forcibly wound through a winding slit which is located behind the component suction position and has a size smaller than the electronic component size, it has the effect of stabilizing the supply state at the electronic component suction position.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. 10 is a tape presser B that holds the tape 2 from above; 10a is a winding slit 11 and 12 is a winding slit for winding the top tape 2a;
The guide pin 13 of a is attached to the feed lever 6 and is a pusher that moves up and down in synchronization with the feed lever 6.

The operation will be explained below. Tape foot B
A winding slit 10a for the top tape 2a provided at 10 is located behind the suction position, and the top tape 2a is wound onto the reel 7 via the guide pin 11 and the fulcrum pin 12, and is in a tensioned state. First, the feed lever is lowered, and the tape 2 is fed one pitch by the feed wheel 4 rotatably attached to the parts cassette 3. At this time, the pusher 13 fixed to the feed lever 6 descends in synchronization and pushes down the top tape 2a under tension. Since a force is constantly applied to the reel 7 in the direction A due to friction by the drive shaft 8, the top tape 2a is forcibly wound up. Moreover, since the dimensions of the winding slit 10a are smaller than the dimensions of the electronic component 1, even if static electricity is generated, it will not float up. Then, when the feed lever 6 is raised and the pusher 13 is raised accordingly, the forcibly wound top tape 2a is transferred to the reel 7.
The top tape 2a is then wound into a tensioned state.

As described above, according to this embodiment, the tape 2 is
It is possible to separate the instability of the supply state of the electronic component 1 due to vibration during pitch feeding from the instability of the supply state of the electronic component 1 due to static electricity generated when winding up the top tape 2a. The dimensions of the slit A are
Since the size of the electronic component 1 is smaller than that of the electronic component 1, the electronic component does not become unstable due to the generation of static electricity, and the electronic component can be stably supplied.

Effects of the Invention As described above, the present invention includes a parts cassette holding a tape holding a plurality of electronic components aligned, a part cassette containing a tape holding a top surface of the tape, and an electronic component suction window and a tape located behind the window. , a winding slit smaller than the size of the electronic component for winding up the top tape attached to the top surface of the tape, a tape presser equipped with two guide pins for the top tape, and a feed lever for feeding the parts cassette one pitch at a time. and fixed to the feed lever,
It includes a pusher that moves in synchronization with the feed lever and forcibly presses the top tape, a reel that winds up the top tape, and a drive shaft that rotates the reel by frictional force, and the top tape is moved behind the electronic component suction hole. Moreover, since the electronic parts are forcibly wound through a winding slit smaller in size than the electronic parts, the electronic parts can be supplied in a very stable manner and have great practical effects.

[Brief explanation of the drawing]

FIG. 1 is a side view of a conventional electronic component supply apparatus, and FIG. 2 is a side view of an electronic component supply apparatus according to an embodiment of the present invention. 1... Electronic parts, 2... Tape, 2a... Top tape, 3... Parts cassette, 6... Feed lever, 7... Reel, 8... Drive shaft, 10... Tape holder, 10a... Winding up Slits, 11...
... Guide pin, 12 ... Guide pin, 13 ... Pusher.

Claims (1)

[Claims] 1. A parts cassette with a tape holding a plurality of electronic components in alignment, a window included in this parts cassette for adsorbing electronic components and configured to press down on the top surface of the tape, and a window located behind the window and configured to press the top surface of the tape. a winding slit smaller than the dimensions of the electronic component for winding the pasted top tape;
a tape presser having two guide pins for the top tape; a feed lever for feeding the parts cassette one pitch at a time; a pusher fixed to the feed lever and moving in synchronization with the feed lever to forcibly press the top tape; An electronic component supply device comprising a reel for winding a top tape and a drive shaft for rotating the reel by frictional force, and configured to forcibly wind up the top tape behind a window for adsorbing electronic components.