JPH0626257U - Electronic component supply device - Google Patents

Abstract

(57) [Summary] [Purpose] When electronic parts stop due to friction, jams, etc. in the chute inside the thermostat, the electronic parts can be slid from the outside without opening the thermostat. [Structure] A chute 5 and a jam eliminating rod 42, which is movable substantially in parallel with the chute 5 and is capable of advancing and retracting and rotating, are arranged in a thermostatic chamber 16. One end of the jam eliminating rod 42 is projected to the outside of the constant temperature bath 16, and the other end is integrally provided with a blade 44. When the electronic component 2 stops in the middle of the chute 5, the jam eliminating rod 42 is operated from the outside to pivotally insert the blade 44 into the long hole 47 of the chute 5 and hit the stopped electronic component 2, The part 2 slides along the chute 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for supplying electronic components suitable for use in inspection, sorting, and marking devices for electronic components such as ICs, capacitors, and discrete devices.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, in a device for inspecting, sorting, marking, etc. of a mold type electronic component (hereinafter collectively referred to as an electronic component) such as an IC, a condenser, a discrete device, etc. A fixed number is stored in a storage container such as a magazine. The sticks containing the devices are stacked and waiting in the stocker, and at the time of inspection, the sticks at the bottom are sequentially moved 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 on the chute by its own weight, and are slid on the chute and guided to the measuring section.

FIG. 5 shows a conventional example of such an electronic component inspection apparatus. 1 is a stick for aligning and storing a large number of electronic components 2 and 3 is a loading unit 4 for storing a large number of sticks 1. A stocker (device storage unit) 5 is a seat for transporting the device 2, and its inclination angle 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 their characteristics are measured by the tester 7. A reversing device 8 which is rotatable in the vertical direction is provided above the measuring unit 6, whereby the front and rear of the electronic component 2 are reversed and the leads are directed to the tester 7 side so that the measurement by the tester 7 can be performed. In addition to making it easier, the relationship between the upward and downward directions during unloading and the position of the device inside the stick and the stick outlet is the same as during loading. The electronic components 2 whose characteristics have been measured by the tester 7 are classified into each category according to their performances, pass through the sorting chute 9 and are sequentially stored in the empty stick 11 installed in the unloading section 10, and are conveyed to the next process. It

By the way, the electronic component 2 is easy to stop in the chute 5 due to device jam (bonding of electronic components due to interference of mold burr), friction, etc. The electronic component 2 is struck, or compressed air is blown to force it to move downwards in the chute. In this case, the chute 5 and the measuring unit 6 are housed and placed in a constant temperature bath to perform a low temperature test (about -55 ° C to 0 ° C) and a high temperature test (about 50 ° C to 150 ° C) of the electronic component 2. In the supply device, every time the electronic component 2 stops in the chute 5, the cover or window of the thermostatic chamber is opened to eliminate the jam, or the peripheral wall of the thermostatic chamber is provided with a stopper to close the jam. The plug of the hole is removed, an appropriate rod is inserted from here, and the electronic component 2 is pushed and moved.

[0005]

[Problems to be solved by the device]

 However, in the conventional device that is configured to inspect the electronic component 2 in such a low temperature or high temperature environment, whenever a jam of the electronic component 2 occurs, the cover or the window is opened to eliminate the jam. Therefore, the temperature inside the thermostatic chamber changes, and the inspection must be interrupted until the internal temperature returns to the predetermined temperature after the jam is eliminated, which reduces the operating rate and reliability of the equipment. There was a problem. In the case of low-temperature inspection, if the thermostat is left open for a long time, moisture may enter the inside, causing frost, frequent jams, and influence on the temperature characteristics of the electronic component 2. Note that there is a problem in that if a hole is made in the peripheral wall of the thermostatic chamber, only jams in the vicinity can be resolved, and the use of compressed air requires a supply source and piping, which requires large equipment and is expensive. It was

Therefore, the present invention has been made in view of the above-mentioned conventional problems, and an object thereof is a jam of electronic parts from outside without opening a constant temperature bath with a relatively simple structure. An object of the present invention is to provide a device for supplying electronic components that can easily solve the above problem.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention has a shoot for transferring electronic parts inside a thermostat, and a turnable shaft, one end of which protrudes outside the thermostat and is substantially parallel to the chute and substantially the entire length of the chute. A jam eliminating rod that is moved back and forth over the above is disposed, and a blade that slides by hitting an electronic component that is stopped by being caught in the chute at the other end of the jam eliminating rod is provided. Is.

[0008]

[Action]

 In the present invention, the jam eliminating rod is moved forward and backward substantially parallel to the chute and is rotated around the axis by operating one end of the jam eliminating rod which is always projected to the outside of the thermostat, and the blade is stopped midway through the chute. Tap or push the moving electronic component to move it.

[0009]

【Example】

 Hereinafter, the present invention will 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 a main part 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 is a main body of the inspection apparatus, 16 is a constant temperature bath in which the chute 5 is built-in and the inside is set and maintained at a predetermined temperature (eg, + 150 ° C. to −50 ° C.), and 17 is an operation. A box, 18 is a storage container for the empty stick 11, 19 is a supply chute arranged in the device supply position 20, 21 and 22 are cross chutes arranged corresponding to the supply chute 19, and 23 is a measuring unit 6. It is a constant temperature bath that keeps the temperature set to a predetermined temperature.

The thermostat 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 sends it from the cross chutes 21 and 22 via a fixed chute 24. The received electronic component 2 at room temperature is cooled or heated to a predetermined temperature. As shown in FIG. 1, the fixed chute 24 is provided so as to penetrate through 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 rotatably held by shaft holding members 28, 28 arranged in the constant temperature bath 16 via bearings 29, and protrudes from the upstream side wall surface 16 a of the constant temperature bath 16 to the outside. The rotation of the motor 30 is transmitted to the end through the index drive device 31, the belt 32 and the pulleys 33a to 33c that form the rotation transmission mechanism, so that the motor 30 is intermittently rotated at a constant angle at regular intervals. The chute 5 is 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 is Guided by the shoot 5. Then, the electronic component 2 is housed in the chute 5 for a fixed time and heated or cooled to a predetermined temperature. A heater is generally used as a heating means for the electronic component 2, and the air inside the thermostat 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 operates every one rotation of the rotating shaft 26 to open the chute 5. Then, when the short 5 is opened, the internal electronic component 2 is sent to the measuring unit 6 through the transport chute 34. In the present embodiment, the chute 5 is constituted by a multi-chute, but in the case of the electronic component 2 having a small device size and a small heat capacity, it can be cooled or heated in a short time, and thus it is not necessary to use the multi-chute. 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 for characteristic measurement by the tester 7, and then stored based on the measurement results by the classification shuttle (not shown). It is similar to the conventional device in that it is housed in the stick 11 of the designated classification category in the container 18.

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. The device has the same length, and the end on the constant temperature bath 16 side forms the device inlet / outlet and the other end is closed. These cross chutes 21, 22 are sandwiched by a horizontal rotary shaft 38 which is intermittently rotated by 180 degrees in a clockwise and counterclockwise direction alternately by a rotary actuator (not shown) and the like. On the side and in the vertical plane, they are arranged in point symmetry so as to intersect with the axis at substantially the same angle. Then, when the rotary 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 thereof are alternately exchanged. By tilting the device inlet / outlet 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 is lowered at the device ejecting position. By tilting toward each other, 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 is projected 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 is A blade 44 that eliminates a jam of the electronic component 2 is integrally provided. The blade 44 is provided so as to be orthogonal to the jam eliminating rod 42, and has an L-shaped end portion bent downward at a substantially right angle. Normally, the rest is provided on the downstream side of the chute 5. It is locked to 45. 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 shoot 5. Further, a peep window 48 is formed on the upper surface of the constant temperature bath 16 corresponding to the chute 5, so that it is possible to check at a glance whether the electronic component 2 is stopped during the chute 5. You can The viewing window 48 is hermetically closed by a transparent glass 49. When the electronic component 2 is caught in the middle of the chute 5, the outer edge of the jam eliminating rod 42 is grasped, the blade 44 is removed from the rest 45, and the jam eliminating rod 42 is pulled out while looking through the peep window 48. 44 is moved to a position where the electronic component 2 is stopped, and then the jam eliminating rod 42 is rotated clockwise in FIG. 3 to insert the tip of the blade 44 into the long hole 47 and stop. The jam can be easily cleared by tapping the upper surface of the electronic component 2 that is present or by pushing it to the downstream side. After clearing the jam, return the jam clearing rod 42 to its original position and hook the blade 44 on the rest 45. The jam eliminating rod 42 as the jam eliminating means having such a structure is also provided in the constant temperature bath 23 for keeping the measuring unit 6 at a predetermined temperature as shown in FIG.

Thus, in the electronic component supply device having such a configuration, 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 supplied from the outside. Since the elimination rod 42 is moved back and forth and rotated and the stopped electronic component 2 only has to be hit with 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. Measurement can be restarted quickly without intrusion. Also, the structure of the jam elimination means is simple.

[0015]

[Effect of device]

 As described above, in the electronic component supply apparatus according to the present invention, the jam eliminating rod is arranged in substantially parallel to the chute so as to be movable back and forth and rotatably in the thermostatic chamber in which the chute is arranged. If one end of the electronic component stops outside the thermostatic chamber and electronic parts stop in the chute due to device jam, wear, etc., the jam eliminating rod is operated from the outside to hit (or push) the stopped electronic part. ), It is possible to easily move the stopped electronic parts without opening the constant temperature bath. Therefore, the internal temperature of the thermostatic chamber does not change, and there is no risk of outside air entering, 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 Section 16 Constant Temperature Bath 42 Jam Clearing Rod 44 Blade 45 Stopper 47 Long Hole 48 Viewing Window

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 disposed, and a blade for striking and sliding the electronic component which is caught in the chute and is stopped is provided at the other end of the jam eliminating rod. Supply device.