JPH071798Y2 - Electronic component supply device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for supplying electronic parts suitable for use in inspection, selection, and marking devices for electronic parts such as ICs, capacitors, and discrete devices.

[0002]

2. Description of the Related Art Conventionally, in an apparatus for inspecting, selecting, marking, etc., a mold type electronic component (hereinafter collectively referred to as an electronic component) such as an IC, a capacitor, a discrete device, etc. A predetermined number is stored in a storage container such as a stick or magazine that opens.
The sticks containing the devices are stacked and waiting in the stocker, and at the time of inspection, the sticks are sequentially moved from the bottommost one to the device supply position and tilted at a predetermined angle with the opening end side facing downward. Then, the electronic components in the stick are sequentially discharged and supplied onto the chute by its own weight, and slide on the chute to be guided to the measuring unit.

FIG. 5 shows a conventional example of such an electronic component inspection apparatus. Reference numeral 1 is a stick for aligning and storing a large number of electronic components 2 and 3 is installed in a loading section 4 for storing a large number of sticks 1. Stocker (device storage),
The chute 5 conveys the device 2, and the inclination angle thereof is determined by the inspection time for each electronic component. The stick 1 in the stocker 3 is rotated counterclockwise so that the opening end faces downward and is set and held at the same inclination angle as the chute 5, so that the electronic component 2 is ejected onto the chute 5. The electronic components 2 are discharged onto the chute 5 with their leads facing downward, are slid by their own weight, are sequentially guided one by one to the substantially vertical measuring unit 6, and the characteristics are measured by the tester 7. A reversing device 8 which is rotatable in the vertical direction is provided above the measuring section 6, whereby the front and rear of the electronic component 2 are reversed and the leads are directed to the tester 7 side, thereby facilitating the measurement by the tester 7. In addition, the vertical direction at the time of unloading and the relationship between the position of the device in the stick and the stick outlet are the same as those at the time of loading. The electronic components 2 whose characteristics have been measured by the tester 7 are classified into respective categories according to their performances, passed through the sorting chute 9 and sequentially stored in the empty stick 11 installed in the unloading section 10, and are conveyed to the next process. .

By the way, the electronic component 2 is easily stopped in the chute 5 due to device jam (bonding of electronic components due to interference of mold burr), friction, etc. In order to eliminate this, an appropriate jam eliminating member or hand is usually used. The electronic component 2 is struck or compressed air is blown to forcefully move the electronic component 2 below the chute. In this case, the chute 5 and the measuring unit 6 are housed and arranged in a thermostatic chamber, and the electronic component 2
In the supply device that performs the low temperature test (about -55 ° C to 0 ° C) and the high temperature test (about 50 ° C to 150 ° C), the thermostatic bath is used every time the electronic component 2 stops in the chute 5. Open the cover or window to eliminate the jam, or remove the plug of the hole that is usually provided on the peripheral wall of the thermostatic chamber and closed by the plug, insert an appropriate rod from here, and poke the electronic component 2 I try to move it.

[0005]

However, in the conventional apparatus which inspects the electronic component 2 in such a low temperature or high temperature environment, when a jam of the electronic component 2 occurs, a cover or a cover is required each time. Since the window is opened to eliminate the jam, the temperature inside the thermostatic chamber changes, and the inspection must be interrupted until the internal temperature returns to the specified temperature after the jam is eliminated, and therefore the operating rate and reliability of the device. There was a problem that it lowered. Further, in the case of low-temperature inspection, if the constant temperature bath is opened for a long time, moisture may enter the inside, causing frost, frequent occurrence of jams, and influence on the temperature characteristics of the electronic component 2. In addition, there is a problem that if you make a hole in the peripheral wall of the constant temperature tank, only the jam in the vicinity can be resolved, and the use of compressed air requires a supply source and piping, so the equipment is large and expensive. It was

Therefore, the present invention has been made in view of the above-mentioned conventional problems, and its purpose is to have a relatively simple structure and to jam electronic parts from the outside without opening a constant temperature bath. An object of the present invention is to provide an electronic component supply device capable of easily solving the above problems.

[0007]

In order to achieve the above object, the present invention provides a chute for transferring electronic parts inside a thermostatic chamber, and a chute that is rotatable around an axis and has one end protruding outside the thermostatic chamber. A jam eliminating rod that is moved back and forth over substantially the entire length of the chute is arranged, and the electronic component that is stopped by being caught in the chute at the other end of the jam eliminating rod is hit. It is provided with a sliding blade.

[0008]

In the present invention, the jam eliminating rod is moved forwards and backwards substantially parallel to the chute and rotated around the axis by operating the one end portion which constantly projects to the outside of the constant temperature bath.
The blade strikes or pushes an electronic component that is stopped mid-shoot to move it.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the embodiments shown in the drawings. FIG. 1 is a sectional view of a thermostatic chamber, FIG. 2 is a plan view of essential parts of a chute and a jam eliminating rod, FIG. 3 is a sectional view of the chute and a jam eliminating rod, and FIG. 4 is a front view showing a supply device for electronic parts. . In the figure, the same components as those in FIG. 5 are designated by the same reference numerals and the description thereof will be omitted.

In FIG. 4, reference numeral 15 denotes an inspection apparatus main body, and 16
Has a built-in chute 5 and has a predetermined temperature inside (eg: + 150 °
C to −50 ° C.), a constant temperature bath, 17 is an operation box, 18 is a storage container for the empty stick 11, 19 is a supply chute arranged at the device supply position 20, and 21 and 22 are A cross chute arranged corresponding to the supply chute 19 and a constant temperature bath 23 for holding the measuring unit 6 at a predetermined temperature.

The constant temperature chamber 16 is provided to perform a low temperature test and a high temperature test of the electronic component 2, and keeps the internal air temperature constant, and the cross shoots 21 and 22.
The electronic component 2 at room temperature sent from the fixed chute 24 through the fixed chute 24 is cooled or heated to a predetermined temperature. As shown in FIG. 1, the fixed chute 24 is provided so as to penetrate an insertion hole 25 formed in the upstream side wall surface 16a of the constant temperature bath 16. The chute 5 forms a multi-chute, and a plurality of chute 5 are arranged at equal intervals in the circumferential direction on the outer circumferences of the disks 27a and 27b provided on the rotary shaft 26 provided in the constant temperature bath 16. ing. The rotary shaft 26 is the constant temperature bath 1.
The bearing 2 is attached to the shaft holding members 28, 28 arranged in
9 is rotatably held via the motor 9, and the motor 30
Rotation of the index drive device 31 and the belt 32 and pulleys 33a to 33c that form the rotation transmission mechanism.
By being transmitted via the motor, the chutes 5 are intermittently rotated by a constant angle at regular intervals, and the chute 5 is sequentially stopped at the receiving position of the electronic component 2. This receiving position is a position where the upstream opening end of the chute 5 closely faces the downstream opening end of the chute 24 on the same axis as the fixed chute 24, whereby the electronic component 2 in the fixed chute 24 shoots. Guided to 5. Then, the electronic component 2 is housed in the chute 5 for a certain period of time and heated or cooled to a predetermined temperature. A heater is generally used as a heating means of the electronic component 2, and the air inside the constant temperature bath 16 is heated and agitated by a fan to make the internal temperature uniform. In the case of cooling, a low temperature gas in which liquid nitrogen is vaporized is jetted into the constant temperature bath 16. A stopper (not shown) is provided at the downstream opening end of the chute 5, and the stopper is the rotating shaft 26.
Moves every one revolution to open the chute 5. And
When the chute 5 is opened, the internal electronic component 2 is sent to the measuring unit 6 through the transfer chute 34. Although the chute 5 is configured by a multi-shoot in the present embodiment, the electronic component 2 having a small device size and a small heat capacity is cooled or heated in a short time, and thus it is not necessary to use the multi-shoot. In any case, the electronic components 2 that have reached the predetermined temperature are separated one by one and sent to the measurement unit 6 and the characteristics are measured by the tester 7, and then stored based on the measurement results by the classification shuttle (not shown). Container 18
It is stored in the stick 11 of the designated classification category in the same as the conventional device.

In FIG. 4, the two cross chutes 21 and 22 are the same as those disclosed in detail in Japanese Patent Application No. 2-321159 already filed by the present applicant, and have the same shape, It has the same length and each is in a constant temperature bath 1.
The 6-side end portion forms a device inlet / outlet port, and the other end is closed. Also, these cross shoots 21, 22
Is a horizontal rotary shaft 38 that is intermittently rotated by 180 degrees in a clockwise and counterclockwise direction alternately by a rotary actuator (not shown) or the like, with its axis sandwiched between both sides,
Moreover, they are arranged point-symmetrically so as to intersect with the axis at substantially the same angle in the vertical plane. Then, when the rotating shaft 38 makes a half rotation, one cross chute, for example, 21 is moved to the device receiving position and the other cross chute 22 is moved to the device ejecting position, and the positions are alternately exchanged. By tilting the inlet / outlet port upward, a predetermined number of electronic components 2 are dropped and stored from the stick 1 through the supply chute 19, and the device inlet / outlet port is directed downward at the device ejection position. By being inclined, the internal electronic components 2 are discharged one by one to the fixed chute 24 by their own weight.

A jam eliminating rod 42 is provided inside the constant temperature bath 16 for eliminating the electronic component 2 guided to the chute 5 when it stops for some reason. As shown in FIGS. 1 to 4, the jam eliminating rod 42 is formed to be longer than the chute 5 and is disposed substantially parallel to the chute 5, and is rotatably and reciprocally moved by the guide member 43. It is held, one end of which protrudes to the outside through an airtight bearing (not shown) from an insertion hole (not shown) formed in the upstream side wall surface 16a of the thermostat 16, and the other end has an electron. A blade 44 that eliminates a jam of the component 2 is integrally provided. The blade 44 is
The jam eliminating rod 42 is provided so as to be orthogonal to the jam eliminating rod 42, and the tip end thereof is bent downward at a substantially right angle to form an L-shape, which is normally locked to a rest 45 provided on the downstream side of the chute 5. Has been done. A continuous (or discontinuous) long hole 47 extending over substantially the entire length in the longitudinal direction is formed on the upper surface of the chute 5. A viewing window 48 is formed on the upper surface of the constant temperature bath 16 corresponding to the chute 5, so that it can be checked at a glance whether the electronic component 2 is stopped in the middle of the chute 5. .
The viewing window 48 is hermetically closed by a transparent glass 49. If the electronic component 2 is caught in the middle of the chute 5, the outer end of the jam eliminating rod 42 is grasped and the rest 45 is held.
Remove the blade 44 from the above, pull out the jam eliminating rod 42 while looking through the peep window 48, move the blade 44 to the position where the electronic component 2 is stopped, and then rotate the jam eliminating rod 42 clockwise in FIG. Let the blade 44
The jam can be easily eliminated by inserting the tip of the above into the long hole 47 and tapping the top surface of the stopped electronic component 2 or pushing it to the downstream side. After clearing the jam, the jam clearing rod 42 is returned to the original position and the blade 44 is hooked on the rest 45. The jam eliminating rod 42 as the jam eliminating means having the above-described structure is used in the constant temperature bath 23 for keeping the measuring unit 6 at a predetermined temperature as shown in FIG.
Is also provided.

Thus, in the electronic component supplying apparatus having such a structure, when the electronic component is stopped in the middle of the chute 5 due to jam, friction or the like, it is not necessary to open the thermostatic chamber 16 and the jam is eliminated from the outside. Since the rod 42 is moved back and forth and rotated and the stopped electronic component 2 is only hit by the blade 44, the internal temperature of the constant temperature chamber 16 changes, and the outside air, particularly humidity enters the constant temperature chamber 16. The measurement can be promptly restarted without any trouble. Moreover, the configuration of the jam eliminating means is also simple.

[0015]

As described above, in the electronic component supplying apparatus according to the present invention, the jam eliminating rod is movably and reciprocally movable substantially parallel to the chute in the thermostatic chamber in which the chute is arranged. When the electronic parts are stopped in the chute due to device jam, wear, etc., one end of the electronic parts is operated to stop the electronic parts which are stopped by operating the jam eliminating rod from the outside. Since it is configured to be tapped (or pushed), it is possible to easily move the stopped electronic component without opening the constant temperature bath. Therefore, the internal temperature of the constant temperature bath does not change, and there is no risk of invasion of outside air, and the operating rate and reliability of the device can be improved.

[Brief description of drawings]

FIG. 1 is a sectional view of a constant temperature bath.

FIG. 2 is a plan view of essential parts of a chute and a jam clearing rod.

FIG. 3 is a cross-sectional view of the chute and the jam clearing rod.

FIG. 4 is a front view showing a device for supplying electronic components.

FIG. 5 is a schematic front view showing a conventional electronic component inspection apparatus.

[Explanation of symbols] 1 stick 2 electronic parts 5 chute 6 measuring part 16 constant temperature bath 42 jam clearing rod 44 blade 45 stopper 47 long hole 48 viewing window

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location H01L 21/66 G 7630-4M 23/00 A

Claims (1)

[Scope of utility model registration request] 1. A chute for transferring electronic parts into a thermostat, and a chute that is rotatable around an axis and has one end protruding outside the thermostat and is moved back and forth substantially parallel to the chute and substantially the entire length of the chute. A jam eliminating rod is provided, and a blade for hitting and sliding an electronic component which is caught in the chute and stopped is provided at the other end of the jam eliminating rod. Supply device.