SU1061890A1 - Apparatus for cutting integrated circuit from lead frame - Google Patents

Abstract

A DEVICE FOR CUTTING INTEGRAL SCHEME FROM THE OUTPUT FRAME, containing a movable plate, a carrier cutting punch, mounted on the base of the lower plate, a carrier matrix, a multi-position loading tray, cassettes with lead frames in the cutting area, under the matrix, the unloading tray, having slots for displaced frames, moved to the cutting zone, under the matrix, the unloading tray, having grooves of the displaced frames, moved to the cutting area, under the matrix, the unloading tray, having the slots for the displacement of the frames of the unloading tray circuits, guides, a replaceable cassette. an integrated circuit receiving circuit from an unloading tray, a lever, an orientation node; integral circuits in slots of a replaceable cassette, characterized in that and production of the cutting process, the device is equipped with mechanisms for loading and unloading multi-cassettes placed on both sides of the matrix, and made in the form of sliders, carrying paws installed with the possibility of alternate interaction with multi-cassettes and located between them drive rollers levers are pivotally mounted on a carriage, a replaceable cassette is mounted on a lever that carries bars arranged perpendicular to the direction of movement of the integral The stranded circuits are in a replaceable cassette, and are made in the form of a frame carrying a lid, having grooves g for moving integrated circuits, perpendicular to the slats, a / L orientation unit is made in the form of flags hinged on the frame and having grooves for the passage of the slats , and electromagnets attached to the lever with the ability to interact with t flags. O5 00 QD

Description

The invention relates to the processing of metals by pressure, and in particular, is intended to cut down integrated circuits from a lead frame.

A device for cutting an integrated circuit from a lead frame, comprising a top bar associated with a press slider, on which dies and a loading tray are mounted, a base and discharging trays fixed thereto and a mechanism for removing an integrated circuit from a cutting area, as well as a punch and a fixing mechanism. lead frame on the cutting position 1.

A disadvantage of this device is the poor cutting performance.

The closest to the invention in essence and the achieved effect is a device for cutting an integrated circuit out of a lead frame containing a movable plate carrying a cutting punch mounted On the base of the bottom plate carrying a matrix, a tray of multi-compartment cassettes with lead frames in the cutting zone located under matrix unloading tray, having grooves for moving the cut-out integrated circuits, guides, removable cassette for receiving integrated circuits from the unloading tray, lever, orientation unit integral circuits in the slots of the removable cassette 2.

A disadvantage of the known device is the low productivity of the cutting process.

The aim of the invention is to increase the productivity of the process of cutting the integrated circuit out of the cutting frame.

The goal is achieved. The device for cutting the integrated circuit out of the lead frame contains a movable plate carrying a cutting punch mounted On the base of the bottom plate carrying the matrix, a loading tray of multi-compartment cassettes with lead frames in the cutting area located under the matrix the unloading tray, having grooves for moving the cut-out integrated circuits, guiding, replaceable cassette for receiving integrated circuits from the discharge tray, lever, integral orientation unit of integrated circuits in the slots of the replaceable cassette, with packed with loading and unloading mechanisms for multi-seat cash-. set, placed on both sides, and made in the form of movable sliders, carrying pawns mounted with the possibility of alternate interaction with multi-seat cassettes and drive rollers located between them, and a carriage movably mounted in guides, the lever is hinged on the carriage, the replaceable cassette is mounted on the lever carrying the straps located perpendicular to the direction of movement of the integrated circuits in the removable cassette is made in the form of a frame carrying a lid having slots for moving the integral s circuits arranged perpendicularly to the strips and orienting assembly is in the form of flags, hinged on the frame and having slots for the passage of slats, and electromagnets mounted on the arm, to cooperate with 1I flag.

FIG. 1 shows a device for punching an integrated circuit from a lead frame, general view; in fig. 2 - section A-A ya of FIG. one; in fig. 3 - carriage with receiving cassette, incision; in fig. 4 shows a section BB in FIG. 3; FIG. 5 is a view of B in FIG. I;

 in fig. b - section GGD in Fig..5; in fig.

7- multi-cassette with lead frames; in fig. 8 - receiving cassette; in fig. 9 is a section d-d in fig. eight; in fig. Yu - checkbox.

0 A device for cutting an integrated circuit out of the lead frame contains base 1, press 2 installed on it, loading mechanism 3, mechanisms for moving 4 containers 5, unloading mechanism €, located under the press 2 mechanisms,

.i unloading 7.

The press 2 comprises a slider 8 driven by a drive shaft 9 through a double-arm lever 10 connected to the slider.

8 upper plate 11, carrying the punch 12, the lower plate 13 with the matrix 14, the tray 15.

 Plates 8 and 13 are interconnected by guiding columns 16. Loading mechanism 3 contains a shaft 17, carrying dogs 18 and 19, shaft 20 with rollers 21 and 22 (rubberized), burning drive rollers 23 and 24, fitted with springs 25 , electric motor 26 (drive); . Photocell 27, crank 28 coupled to electric motor 26, connecting rod 29 connecting crank 28 to carriage 17.

The unloading mechanism 6 is similar to the mechanism 0 at the bottom of the load 3.

The unloading mechanism 7 comprises a fixed inclined tray 30 having slots a, which coincide with the openings of the die 14.

Under the tray 30, a frame 31 is fixed with the possibility of removal, fixed on the base 32, the base 32 is mounted on the carriage 33.

In box 31, flags 34 are installed in two rows, turned from electromagnets

35. The frame 31 is closed by a lid 36 having slots b, which are a continuation of the slots a. Flags 34 are transverse with respect to the grooves b slots, into which the female 37, mounted on the base 32, enter. A cam is mounted on the drive shaft 9

5 38. Tray 15 is set in motion in the vertical plane from the cam 38 through the lever 39. The position 40 designates the chips.

 Device for cutting integrated circuits works as follows.

The cassette with chips from the containers 5 is gripped by the pawl 18 when the carriage 17 is moving, is fed to the rollers 21 and 22.

The rollers 21 and 22 feed the cassette into the working press 2, and the dog 19 pushes the hasset through tray 15 into the working area of press 2. The cam 38 lowers the tray 15 through the lever 39 and the cassette rests on the working surface of the matrix 14. When the upper plate 11 moves down, the punch 12 enters the apertures of the matrix 14 and cuts down the integrated circuits (microcircuits). Cut down integral

the diagrams fall into the tray 30 and move along the slots a and b up to the stop into the frame 31. The lower electromagnet 35 operates and rotates the lower flag 34, which protrudes above the frame 31.

After filling one half of the frame with 3 microcircuits 40, the carriage 17 moves under the tray 30 the other half of the frame 31. The filled frame 31 (with microcircuits 40) is removed from the base 32, and the microcircuits

40 places in the slots of the flags 34.

The effect of using the device is to increase the productivity of the process of cutting the integrated circuit out of the output frame.

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Claims (1)

DEVICE FOR CUTTING AN INTEGRAL SCHEME FROM THE OUTPUT FRAME, containing a movable plate carrying a die cutting punch, a bottom plate mounted on a base, a carrier matrix, a multi-seat loading tray, cartridges with output frames in the cutting area, located under the matrix of the unloading tray having integral grooves for moving circuits, guides, removable cartridge for receiving integrated circuits from the unloading tray, lever, integrated circuit orientation unit in the grooves of the removable cartridge, characterized in that, in order to increase watering of the cutting process, the device is equipped with mechanisms for loading and unloading multi-seat cassettes located on both sides of the matrix and made in the form of sliders carrying installed with the possibility of alternating interaction with multi-seat cassettes of the dog and drive rollers located between them, and a carriage movably mounted in the rails, the lever is pivotally mounted on the carriage, the removable cartridge is mounted on the lever supporting the strips located perpendicular to the direction of movement of the integrated circuits in interchangeable cartridge, and is made in the form of a frame carrying a cover having grooves for moving integrated circuits located perpendicular to the strips, and the orientation unit is made in the form of flags pivotally mounted on the frame and having grooves for the passage of the strips, and electromagnets mounted on the lever with the possibility interactions with t flags.