JPS599755Y2 - Initial resistance measurement and classification device for resistors - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device that measures the initial resistance of a resistor and classifies each resistance value.

Resistors are classified by resistance value by measuring the initial resistance of the resistor before attaching lead wires, and conventionally there are two types of devices of this type.

In other words, the initial resistance of the resistor is measured at a fixed position, and the resistor after the measurement is sorted into a sorting chute. There is one that measures the resistance value during transportation and sorts and drops them according to the resistance value.

However, in any device, for example, the diameter is Q.
It is not suitable for measuring and classifying extremely small resistors with a length of about 2 mm in gmm.

That is, in the former case, if the resistor is small and lightweight as described above, the falling state of the resistor is unstable and it is difficult to perform the classification work reliably.

Furthermore, in the latter case, when the resistor is small as described above, it is difficult to transfer the resistor itself reliably.

The purpose of this invention is to classify the initial resistance measurement of resistors so that not only large resistors but also extremely small resistors can be reliably measured and classified by resistance value. We are in the process of providing equipment.

In order to achieve the above object, the present invention closes the lower side of the inspection hole of the inspection plywood with a lower inspection member, and after closing, inserts the resistor into the inspection hole from the supply chute, and inserts the resistor into the inspection hole. After that, the upper test member is moved onto the test hole, and the resistance value is measured by sandwiching the upper and lower resistor between the upper test member and the lower test member, and after the measurement, the storage device is The desired discharge chute is advanced to the bottom of the inspection hole according to the command, and then the lower inspection member is moved back and the resistor in the inspection hole is dropped into the receiving box from the discharge chute located directly below. It is characterized by being constructed as follows.

Hereinafter, one embodiment of the present invention will be specifically described based on the drawings.

As shown in FIGS. 1 and 2, the top plate 2 of the box-shaped pedestal 1
A hole 3 is bored in the center of the hole.

A support 4 is fixed on the upper surface plate 2, and a base of an inspection base plate 5 is fixed on the support 4.

This test base plate 5 consists of an insulating plate 6 on the lower surface and an abrasion-resistant plate 7 on the upper surface, and the front side protrudes above the hole 3 in a substantially horizontal state, and the resistor a is mounted vertically in the center of the front side. A test hole 8 that can be inserted into the test hole 8 is bored, and the axis of the test hole 8 is substantially aligned with the hole 3.

A support stand 10 is fixed on the top plate 2 on the opposite side of the support column 4 across the hole 3.

A pair of shafts 11, 12, and 13 are slidably inserted through the support base 10 in three vertical stages in the horizontal direction with bearings 14 interposed therebetween.

The tips and rear ends of the shafts 11, 12.13 in each stage are connected in a frame shape by connecting members 15, 16, 17, 18, 19.20, respectively, and each of the rear connecting members 16, 18.20 Bearings 21, 22, and 23 are pivotally supported at the center of the rear end.

A support plate 24 is fixed approximately horizontally to the upper end of the support base 10, and each shaft 11, 1 is connected to the support plate 24 and the top plate 2 of the pedestal 1.
2.13, a camshaft 25 is vertically supported via bearings 26 and 27.

A motor 28 is fixed on the support plate 24, and the motor 2
The output shaft 30 of No. 8 passes through the support plate 24, and a small gear 31 is fixed to the protruding end of the output shaft 30.

This small gear 31 is meshed with a large gear 32 fixed to the upper end of the camshaft 25.

By driving the motor 28, the camshaft 25 can be rotated at a reduced speed via the gears 31 and 32.

On the camshaft 25, cams 33, 34, . 35 is fixed.

A spring hook 36 is provided protruding from the shafts 11, 12, 13 of each stage, and a tension spring 38 is tensioned between the spring hook 36 and a spring catch 37 protruding from the support base 10. axis 1 of
1, 12, and 13 are energized rearward, and each bearing 21
, 22.23 are in contact with the cams 33, 34.35.

Therefore, the rotation of the camshaft 25 and the cams 33, 34.35 allows the shafts 11, 12.13 of each stage to move forward or backward intermittently.

A connecting member 19 between the tips of the lower shafts 13 is made of an insulating material, and a measuring plate 40 serving as a negative electrode is fixed horizontally to this connecting member 19 as a lower measuring member. is slid together with the shaft 13 along the lower surface of the inspection base plate 5 by the rotation of the cam 35, and is moved forward or backward to the closed position and open position of the inspection hole 8.

A nozzle 42 at the lower end of a resistor supplying chute 41 vertically penetrates and is fixed to a connecting member 17 between the tips of the middle shaft 12, and the lower end of the nozzle 42 is close to the top plate 2.

The supply chute 41 includes a nozzle 42 and a coil chute 43 having one end connected to the inside of the upper end of the nozzle 42 .

A support column 44 is erected on the upper surface plate 2, a support stand 45 is fixed on the support stand 44, and a parts feeder 46 for supplying resistors is placed on the support stand 45.

The other end of the coil chute 43 is connected to the parts feeder 46.

Thus, the resistor a in the parts feeder 46 is continuously stored in the supply chute 41.

This supply chute 41 moves forward onto the inspection hole 8 together with the shaft 12 by the rotation of the cam 34, or
It is set further back so that the resistors a can be sequentially inserted into the test hole 8 one by one.

The upper end of an arm 47 is vertically connected to the lower end of the connecting member 15 between the ends of the upper shaft 11, and the lower end of the arm 47 has a measuring roller 48 serving as a positive electrode as an upper measuring member. is rotatably supported.

Spring hooks 49, 50 are provided protruding from the connecting member 15 and the shaft 11, respectively. 50 is a tension spring 51
is tensioned, and an inspection roller 48 is energized on the inspection base plate 5 using the connection between the connection member 15 and the shaft 11 as a fulcrum (instead of the tension spring 51, a A weight may be provided.

). This inspection roller 48 is connected to the supply chute 41.
and the inspection hole 8, and by rotation of the cam 33, it can move forward together with the shaft 11 onto the inspection hole 8, or move back and forth from the inspection hole 8.

The timing for advancing or retracting the inspection plate 40, supply chute 41, and inspection roller 48 is determined by each cam 33.
, 34.35.

That is, first, the inspection plate 40 advances from the retracted position to the closing position of the inspection hole 8 (see FIG. 4A), and in this state, the supply chute 41 advances onto the inspection hole 8 and closes the resistor a. One piece is put into the test hole 8 (see Fig. 4B), and after the supply chute 41 retreats, the test roller 48 moves forward onto the test hole 8, that is, over the resistor a, and the resistor The top and bottom of a are held between the inspection roller 48 and the inspection plate 40 (see FIG. 4C).

After that, the inspection plate 40 and the inspection roller 48 are both moved back from the inspection hole 8 to release the resistor a (see FIG. 4E).

Each cam 33, 34 . 35 is determined and installed on the camshaft 25.

An inspection lead 52 is provided on the arm 47 of the inspection roller 48 and the inspection plate 40, respectively. One end of each test lead 52 . The other end of 53 is connected to a resistance value measuring device (not shown), and the resistance value measuring device is connected to a measurement value storage device (not shown).

Therefore, as mentioned above, the inspection hole 8 is
By holding the upper and lower portions of the resistor a inserted therein between the test roller 48 and the test plate 40, its resistance value can be measured and stored.

A support stand 54 is provided on the upper surface plate 2 of the pedestal 1 on the rear side of the support column 4.
A rotary shaft 58 is supported in the horizontal direction by bearings 56 and 57 fixed to the top plate 55 of the support base 54 and the support plate 24, respectively. ．． 60 is fixed.

One heli force Lugia 59 is engaged with a heli force Lugia 61 fixed to the upper protruding end of the camshaft 25, and the other heli force Lugia 60 is connected to the upper surface plate 55 and intermediate plate 62 of the support base 54. It is meshed with a helical gear 64 on a rotating shaft 63 supported in the vertical direction.

Therefore, due to the rotation of the camshaft 25, the heli force is applied to the gear 61.
．． 59, rotating shaft 58 and helical force Luger 60. 64
The rotary shaft 63 is rotated via.

The collar of a bell crank 66 is attached to a vertical shaft 65 rotatably supported by the top plate 55 and intermediate plate 62 of the support base 54, and a roller 67 is attached to one end of the bell crank 66.
is rotatably supported, and an air nozzle 68 is attached to the other end as shown in FIG.

Spring hooks 70.71 are provided protruding from the top plate 55 and the side of the bell crank 66 on which the air nozzle 68 is attached, respectively, and a tension spring 72 is tensioned on these spring hooks 70.71.

The tension of the tension spring 72 urges the roller 67 into contact with the cam 73 mounted on the rotating shaft 63.

Then, the bell crank 66 rotates due to the rotation of the cam 73, and the air nozzle 68 advances onto the inspection hole 8 in a direction perpendicular to the line connecting the supply chute 41 and the inspection roller 48, Alternatively, it can be moved back from the inspection hole 8.

As described above, this cam 73 is operated after the inspection plate 40 retreats from the inspection hole 8, the air nozzle 68 advances onto the inspection hole 8, and before the supply chute 41 advances onto the inspection hole 8. The air nozzle 68 is set to be retracted from the inspection hole 8.

One end of an air hose 74 is connected to the air nozzle 68, and the other end of the air hose 74 is connected to an air compressor (not shown).
When the air nozzle 68 moves forward onto the inspection hole 8, compressed air can be ejected from the air nozzle 68.

Bearings 75 are attached to the lower surface of the top plate 2 of the pedestal 1 at a plurality of locations (seven locations in this embodiment) radially surrounding the hole 3, and each bearing 75 is provided with a pair of bearings 75 radially arranged so as to surround the hole 3. A shaft 76 is slidably inserted therethrough.

An arm 77 is fixed to the tip of each shaft 76, and a pipe-shaped resistor discharge chute 78 is inserted through and fixed to each arm 77.

Each of the discharge chutes 78 is inclined so that the upper part passes through the hole 3 and faces the inspection hole 8, and the upper end opening edge approaches the inspection hole 8 as much as possible, and the lower part thereof spreads out radially. There is.

The rear ends of each shaft 76 are connected by a connecting member 79, and a shaft 81 of a solenoid 80 attached to the lower surface of the top plate 2 is connected to each connecting member 79.

Spring hooks 82 attached to each shaft 81 and top plate 2. 8
A tension spring 84 is tensioned at 3, so that each shaft 81 and 76 is normally biased rearward, and each discharge chute 78 is retracted from the inspection hole 8.

When the solenoid 80 at a predetermined location is energized by a command from the storage device, its shafts 81 and 76 protrude forward against the elasticity of the tension spring 84, and the ejection chute 78 moves forward. The upper opening edge of the chute 78 can be located below the inspection hole 8 .

Further, when the solenoid 80 is demagnetized by a command from the storage device, its shafts 81 and 76 move rearward due to the elasticity of the tension spring 84, and the discharge chute 78 retreats from the inspection hole 8.

A shaft 86 extends vertically at the center of the intermediate plate 85 of the pedestal 1.
A turntable 88 is rotatably supported on the shaft 86 via a bearing 87.

On the turntable 88, a plurality of receiving boxes 90 (seven in this embodiment) are placed radially for receiving the resistors a discharged from the respective discharge chutes 78.

An outlet and a door (not shown) for taking out the receiving box 90 are provided at one location on the side plate 91 of the gantry 1.

Next, the operation of the present invention will be explained.

When the motor 28 is driven and the camshaft 25 is rotated as described above, the lower cam 35 moves the inspection plate 40 forward as shown in FIG. 4A to close the lower side of the inspection hole 8.

Subsequently, the supply chute 41 is advanced by the middle cam 34 onto the test hole 8 as shown in FIG. 4B, and one resistor a falls into the test hole 8.

After falling, the middle cam 34 and the upper cam 33 cause the fourth
As shown in FIG. C, the supply chute 41 retreats from the test hole 8, and the test roller 48 moves forward onto the test hole 8, that is, onto the resistor a.

Therefore, the resistor a is held between the top and bottom by the test roller 48 and the test plate 40, its resistance is measured by a measuring device, and the resistance is stored in a storage device.

At this time, the inspection roller 48 is energized by the tension spring 51 or the weight on the top surface of the inspection base plate 5, so it can move up and down according to the size of the resistor a. The resistance value can be measured by reliably supporting the top and bottom of a by the testing roller 48 and the testing plate 40.

After the measurement, a desired solenoid 80 is energized according to a command from the storage device as shown in FIG.

At about the same time, the lower cam 35 and the upper cam 33 move the inspection plate 40 and the inspection roller 48 back from the inspection hole 8 as shown in FIG. 4E, releasing the resistor a.

Due to this release, the resistor a falls due to its own weight, or the rotating shaft 63 and cam 7 that rotate in conjunction with the cam shaft 25
3, the air nozzle 68 attached to the bell crank 66 advances onto the inspection hole 8 at the same time as the resistor a is released, and the resistor a is forcibly dropped by jetting out compressed air.

The fallen resistor a passes through a discharge chute 78 located directly below it and is thrown into a receiving box 90.

After blowing out the compressed air, the air nozzle 68 is moved back from the inspection hole 8 by the rotation of the cam 73.

Thereafter, by repeating the above operation, the resistors a are sorted by each resistance value and placed in each receiving box 90.

When the resistor a is stored in each receiving box 90, the turntable 88 is rotated to take out the receiving box 90 from the outlet of the side plate 91, and the resistor a is placed in another receiving box 90 or in another container. Then, the receiving box 90 is placed on the turntable 88, and the measurement and classification work can be performed again.

In the above embodiment, when resistor a is released after measuring the resistance value of resistor a, a large resistor will fall from the test hole 8 due to its own weight, but as mentioned above, a very small resistor will fall down from the test hole 8. In this case, it may not fall due to the frictional resistance with the measurement hole 8, so an air blowing device is provided as an auxiliary device. In addition, even in the case of a very small resistor, it is not necessary to provide the test hole 8 if the shape of the test hole 8 is designed so that the resistor can easily fall.

Further, as a device for operating the inspection plate 40, the supply chute 41, and the inspection roller 48, an air cylinder device or the like may be used instead of the mechanism such as a cam as in the above embodiment.

Further, the device for operating the discharge chute 78 may also be an air cylinder device or the like instead of the solenoid as in the above embodiment.

Further, the upper measuring member may use a leaf spring instead of the roller 48, and the lower measuring member may use a roller instead of the plate 40.

Further, the number of discharge chutes 78 and receiving boxes 90 can be increased or decreased as desired.

Further, in the illustrated example, the resistor a has caps fitted to both ends of the insulator, but it goes without saying that resistors having various shapes can be implemented without caps.

As is clear from the above, according to the present invention, the lower side of the inspection hole of the inspection plywood is closed with the inspection member, and after closing, the resistor is introduced into the inspection hole from the supply chute. , move the test member onto the test hole, measure the resistance value by supporting the resistor above and below with these lower and upper test members, and after measurement, test the desired discharge chute according to the command from the storage device. The resistor in the test hole is moved forward toward the bottom of the hole, and then the lower test member is retreated to drop the resistor in the test hole into the receiving box from the discharge chute directly below.

Therefore, it is possible to reliably measure the resistance value of not only a large resistor but also an extremely small resistor and classify it into each resistance value.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway plan view showing an embodiment of the initial resistance measurement and classification device of the present invention, Fig. 2 is a partially cutaway front view thereof, and Fig. 3 is a sectional view of the air nozzle used in the present invention. 4A to 4E are explanatory diagrams of the operation of the present invention. 1... Frame, 3... Hole, 5...
・Inspection base plate, 8...Inspection hole, 10...
... Support stand, 21 , 22. 23 ... Bearing, 25 ... Camshaft, 28 ... Motor, 33 , 34 . 35...cam, 40.
...Inspection plate, 41...Resistor supply chute, 46...Parts feeder, 48...
...Inspection roller, 66...Bell crank, 67...Roller, 68...Air nozzle, 73...Cam, 78... ... Resistor discharge chute, 80 ... Solenoid, 88
...Turntable, 90...Receiver box,
a...Resistor.

Claims (1)

[Scope of utility model registration request] A pedestal with a hole on the top surface, a plywood for inspection that is fixed to the pedestal above the hole and has an inspection hole into which a resistor can be vertically inserted, and a plywood for inspection on the bottom surface of the pedestal for inspection. an upper inspection member that is movable along the inspection hole and that can advance to a closed position of the inspection hole or retreat to an open position of the inspection hole;
a resistor supplying chute whose lower end is close to the upper surface of the inspection plywood and is supported so as to be able to move forward onto the inspection hole or retreat from the inspection hole; A lower inspection member which is movably provided on the upper surface and which can move forward onto or retreat from the inspection hole, and which inspects the lower inspection member, the supply chute and the upper inspection member. A device for moving the supply chute and the upper measuring member forward or backward relative to the measuring hole and selectively advancing the supply chute and the upper measuring member onto the inspection hole while the lower measuring member is blocking the inspection side hole; A resistance value measuring device and its memory device are connected to the test member and the upper test member, and the mount is supported so as to be movable forward or backward relative to the test hole in the radial direction, and the upper end is connected to the hole of the mount. a plurality of resistor discharge chutes that protrude further and whose upper end openings are located below the inspection hole at the position; a device that moves the discharge chutes forward or backward according to instructions from the storage device; and a device that is supported by the mount. 1. An apparatus for measuring and sorting the initial resistance of resistors, characterized in that the apparatus comprises a plurality of receiving boxes each receiving a resistor discharged from each discharge chute.