JPH02131178A - Sorting device for ring work - Google Patents

Abstract

PURPOSE:To sort automatically by conveying ring works by means of a conveyor, feeding spheres of different diameters successively and providing a measuring stage for sensing whether the inner diameter of the ring work is passed through or not and also a sorting discharge section for sorting by means of sending output. CONSTITUTION:Ring works 2 are lined up on a conveyor 1 by means of guides 11 and 12 and conveyed. The works 2 are stopped by the up and down movement of stoppers 13, 14 and 15, clamped by recessed sections of a work supporting section 22 moving forward and backward and also left and right of a transfer unit 21 and placed on a measuring stage 3. In said position, small, medium and large spheres are fallen from above down to three positions of recessed sections and sensors mounted in respective positions sense if the spheres are not passed and also the positions to lower one of cylinders 31, 32 and 33 for stopping a soring discharge stage 4 based on signals of a transfer number sensor 23, operate one of discharge cylinders 34, 35 and 36 and sort and discharge the works to chutes 51, 52 and 53. Thus, sorting of inner diameters of ring works is automated and made manless.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for sorting annular magnetic cores, which is suitable for application to an apparatus for classifying annular magnetic cores having the same thickness and outer diameter but different inner diameters.

Conventionally, in sorting out this kind of annular cores with different inner diameters, there are two methods: manually measuring the inner diameter of the annular flap 7 with a caliper or a micrometer, and measuring and sorting using image processing; however, the former method requires simple labor. The latter method is time-consuming, and although the processing speed is fast, the device itself is complicated and costs are high.

In view of this, the present invention is designed to drop measuring balls from small to large into the inner diameter of the annular core, and when the balls do not fall, it is determined whether the inner diameter of the annular core is large. The main purpose of this invention is to propose a relatively simple and inexpensive sorting device for annular workpieces.

The present invention comprises a conveyor for aligning and conveying workpieces, a unit for supplying balls to the workpieces for sorting the inner diameter of the workpieces, and a transfer unit for moving the workpieces at a fixed pitch so that the balls enter the inner diameter of the workpieces. It consists of an actuator that sorts the sorted workpieces, and a sensor that detects whether the ball has passed through the inner diameter of the workpiece after falling.It is characterized by dropping the ball onto the inner diameter of the workpiece and sorting it according to the size of the inner diameter. do.

An embodiment of the present invention will be described in detail below with reference to the drawings.

FIGS. 1 and 2 are a plan view and a front view showing an example of the present invention. Reference numeral 1 denotes a conveyor, on which workpieces 22 having different inner diameters, different thicknesses, and the same outer diameter are conveyed. conveyor 1
In the measurement stage 3, the workpiece 22 is once guided out of the measurement stage 3, and then the measured workpiece 22 is conveyed to the selective discharge stage 4 again. S, 6.7.8 indicates a pulley for once guiding the conveyor 1 out of the measurement stage 3.

The workpiece 2 is supplied from the upstream side by the 4-conveyor 1,
As shown in FIG. 1, left and right id 11 and 12 are provided to arrange the workpieces 2 in one vertical line. In order to facilitate the operation of the transfer unit 21 that moves the workpiece 2 from the conveyor 1 to the measurement stay 73, the first, second and third stoppers 1 3.1 4.1 temporarily stop the workpiece 2.
5 is provided. First and second stoppers 1 3
．． 1 4 is for temporarily stopping the work 2 before being transferred by the transfer unit for measurement,
The third stopper 15 is for temporarily stopping the wire 22 located between the conveyor 1 and the measurement stage 3.

An actuator is connected to each stopper 13, 14, 15, and a pair of actuators are provided at intervals narrower than the outer diameter of the workpiece 2.

A transformer 77 for transferring the work 2 carried by the conveyor 1 to the measurement stage 3 is driven forward, backward, left and right. A work support part 22 formed with three four parts that supports a plurality of works 2 is attached to the tip of the piston of the transfer unit 21 . Each concave portion of the workpiece support portion 22 is set to match the outer diameter of the workpiece 2 . The transformer 7 unit 21 sequentially moves forward, backward, left and right through the supply position shown in Figure 1, the measurement position shown in Figure 3A, the work release position shown in Figure 3B, and the supply standby position shown in Figure 3C. controlled to do so. A 21f1 function sensor 23 is provided to detect the number of times when the feed position shown in FIG. 1 is reached. The output of the second functional sensor 23 is the 18th! It is processed by the control circuit together with the performance sensor.

Furthermore, as shown in FIG. 2, after the workpiece 2 is transferred to the measurement stage 3 by the transfer unit 21, there is a ball supply pipe 25, into which the first, second and third measuring balls fall.
2 6.2 7 are provided on the measurement stage 3.

The center of each pipe 2 5 , 2 6 , 2 7 coincides with the center of each recess of the workpiece support 22 . And the first and second
The outer diameters of the third pipes 25, 26, and 27 are set larger in this order. The balls falling from each pipe 25, 26, 27 pass through a long hole 28 drilled in the table of the measurement stage 3 and are collected in a ball collection box 29 provided at the bottom, and are returned to each pipe 25 depending on the size. , 2 6. 2 7.

As shown in FIG. 4, between each pipe 25, 26, 27 and the collection box 29, there is a conveyor 1 for detecting falling balls.
18th in between! A pair of upper and lower first, second and third sensors 4 1 , 4 2.43, 4 4, 4
5.46 is provided, and when the ball falling from the first pipe 25 is smaller than the inner diameter of the workpiece 2, each sensor 41, 42
A pulse is generated so that both are turned on, and when the fallen ball is larger than the inner diameter of the warp 22, a pulse is generated so that the sensor 41 is turned on and the sensor 42 is turned off. Second and third sensors 43, 44, 45.4
6 is also set in the same relationship as the first sensors 41 and 42.

After the measurement, the workpiece 2 is transferred to the transfer unit 2 again.
1 to the conveyor 1, and is discharged by a selective discharge section provided on the downstream side of the conveyor 1 according to the selected measurement dimension. The selective discharge section provided on the measurement stage 4 is composed of three sets of work stop cylinders 31, 32, 33 and cylinders 34, 35, 36 that transport the measured work 2 to the respective shoes 51, 52, 53. be done.

Next, the operation of the present invention will be explained in detail. As shown in FIG. 2, first, the first, second and third stoppers 13.
1 4. 1 5 is placed on standby in a state close to the conveyor 1. Therefore, the first workpiece 2 conveyed by the first stopper 13 is initially stopped. As shown in FIGS. 5A and 6, the first stopper 13 is driven upward by the operation of the actuator, so the first welder 22 is stopped at the second stopper 14, and as shown in FIGS. As shown in the figure, the first stopper 13 returns to its original position and stops the subsequent workpiece 2, and the second stopper 14 is driven upward, so that it is stopped at the third stopper 15. .

Then, as shown in FIG. 5C and FIG. 6, the first stopper 13 is driven upward again, so that the subsequent workpiece 2 is
It is stopped at the stopper 14. At this time,
The transfer unit 21 is in a supply standby state as shown in FIG. 3C. Next, as shown in FIG. 5D, the third stopper 15 is driven upward, and the transfer unit 2
1 is driven, the workpiece 2 is supported by the workpiece support section 22, and is transferred to the measurement stage 3, as shown in FIG. 3A.

In the measurement stage 3, the inner diameter is measured using a sphere, the details of which will be described later.

After measuring the fall of the ball from the first pipe 25, as shown in FIG. 3B, the work supporting part 22 is released from the work by driving the transformer 77 unit 21, and then as shown in FIG. 3C. Driven to standby state. Meanwhile, the next work 22
As shown in FIGS. 5A and 6 again, the third stopper 15 is returned to its original position by the operation of the actuator, and the above operation is repeated.

After repeating the above operation and all the workpieces 2 to be measured are held in the four parts of the workpiece support part 22, as shown in FIG. 3H.
As shown in FIG. 3I, when the fourth workpiece 2 is supported, the workpiece 2 on which the first measurement has been completed is released from the workpiece support 22, and as shown in FIG. By the transfer, the first workpiece 2 is pushed out from the measurement stage 3 toward the conveyor 1 side.

Next, to explain the details of measurement using a sphere, first, the fourth
As shown in FIG. A, when the warp 22 is located at the first pipe 25 of the measurement stage 3, a command to drop the ball is activated and the ball falls as shown in FIG. In this case, work 2a
When the inner diameter of the ball is smaller than the outer diameter of the ball supplied from the first vibrator 25, the first sensor 41 is on and the sensor 42 is off. Therefore, the workpiece 2a has been measured and is sequentially transferred to the downstream side by the workpiece support section 22.

At this point, the sensor 23 of the transfer unit 21 counts the number of times the transfer unit 21 has moved, and when the first sensor 41 is on, the sensor 42 is off, and the sensor 23 counts three times, the stop cylinder 31, 32, 33 and extrusion cylinder 3 4,
3, 5.3 Of the selective ejection parts 6, only the stop cylinder 31 moves downward, and the extrusion cylinder 34
Therefore, the measured workpiece 2a is selectively discharged to the first shooter 51.

Next, as shown in FIG. 4B, the inner diameter of the next worm 22b is the first
larger than the outer diameter of the sphere supplied from the pipe 25, and the second
When the diameter is smaller than the outer diameter of the sphere supplied from the pipe 26,
The first sensor 41, 42 are both on, the second sensor 43
is on, and the sensor 44 is off. Therefore, the workpiece 2b has been measured and is sequentially transferred to the downstream side by the workpiece support section 22. At this time, the sensor 23 of the transfer unit 21 counts the number of times the transformer 77 unit 21 has moved, and the first sensor 41 and 42 are both on, the second sensor 43 is on, and the sensor 42 is off.
When the sensor 23 counts twice, only the stop cylinder 32 moves downward for the first time, and only the extrusion cylinder 35 moves to extend, allowing the measured workpiece 2b to be selectively discharged to the second chute 52. Become. Note that a ball falls from the pipe 26, but since there is already a ball supplied from the pipe 25, that ball will be collected in the box 29.

Furthermore, as shown in FIG. 4C, the inner diameter of the workpiece 2c is larger than the outer diameter of the balls supplied from the first and second pipes 25 and 26, and larger than the outer diameter of the balls supplied from the third pipe 27. The first and second sensors 4 1 . 4 2,4
3.4 4 are both on, the third sensor 45 is on, and the sensor 46 is off.

Therefore, the workpiece 2c has been measured and is transferred to the downstream side by the workpiece support section 22. At this time, the number of movements of the transfer unit 21 is counted by the sensor 23 of the transformer 77 unit 21, the first and second sensors 41, 42, 43, and 44 are both on, the third sensor 45 is on, and the sensor 23 is on. 46 is turned off and once counted by the sensor 23, only the stop cylinder 33 moves downward for the first time, and only the extrusion cylinder 36 moves to extend.
12- Then, the measured workpiece 2C is selectively discharged to the third shaker 53.

As shown in FIG. 4D, when the inner diameter of the workpiece 2g is larger than the outer diameter of the balls supplied from the first, second and third pipes 25, 26. sensor 41,
42, 43, 44, and 45.46 are all turned on. Therefore, the workpiece 2g becomes unmeasurable and is transferred to the downstream side by the workpiece support section 22. At this time, all the stop cylinders 31, 3 2.3 3 and the extrusion cylinders 3 4, 3 5.36 do not operate, and the workpiece 2g is delivered by the conveyor 1. In addition, each cylinder 3
1, 32.3 3, 3 4, 3 5. 3 6 are controlled by the control circuit 40 to return to their original state after a certain period of time after being activated.

Therefore, the inner diameters of the workpieces 22 to be measured that are sequentially supplied are selectively classified into four types.

To further increase the number of selection categories, the workpiece support 22
This becomes possible by increasing the number of concave portions, selective ejection portions, etc. as necessary.

As described above, according to the present invention, a measuring stage is used, which sequentially supplies balls with different outer diameters to fall onto an annular workpiece, and uses a sensor to detect whether a particular ball passes or does not pass through the inner diameter of the annular workpiece, and a detection output. It is constructed with a sorting and discharging section that sorts the annular workpieces according to their inner diameters after measurement, so there is no need to manually manually inspect each workpiece as in the past, and this type of measurement can be performed accurately and quickly. .

Therefore, it is possible to provide a sorting device that is simpler and cheaper than an image processing system.

Further, according to the present invention, a measurement stage is used, which sequentially supplies balls with different outer diameters falling onto the annular workpiece, and detects whether a particular ball passes or does not pass through the inner diameter of the annular workpiece, using a first functional sensor, and the detection output. In the sorting device for circular workpieces, the apparatus includes a sorting and discharging section that sorts the circular workpieces according to their inner diameter after measurement. A transformer 77 unit that transfers the annular workpiece to be measured between a plurality of measuring ball supply pipes, a second functional sensor that counts the number of reciprocations of the transfer unit, and a second functional sensor that detects the presence of the unmeasured annular workpiece that has been inspected by the above-mentioned balls. A control circuit outputs outputs of the first functional sensor and the second functional sensor to be detected, and only a cylinder specified from among the plurality of cylinders of the sorting and discharging section is operated by the control circuit to sort the workpieces. Therefore, even when workpieces to be measured with different inner diameters are supplied randomly on a conveyor, they are reliably and automatically sorted according to the preset inner diameter selection classification, making it possible to unmanned this type of work. have an effect.

Further, according to the present invention, there is provided a measurement stage that sequentially supplies balls with different outer diameters to fall onto the annular workpiece and uses a sensor to detect whether a particular ball passes or does not pass through the inner diameter of the annular workpiece, and a measurement stage that uses the detection output. In a sorting device for annular workpieces, which includes a sorting/discharging section that sorts the later annular workpieces according to their inner diameters, the first,! @2 and 3rd stoppers are provided on the conveyor, and selective operation of the stoppers = 15- The workpieces that are continuously supplied via the control circuit are temporarily stopped and then supplied one by one to the measurement stage. Since the continuously supplied workpiece to be measured is transferred intermittently, automation of the intermittent transfer can be achieved by adopting a method of intermittently measuring various measurements.

[Brief explanation of drawings]

1 and 2 are a plan view and a side view showing an embodiment of the present invention, and FIG. 3 is a transfer 7 unit? } and the workpiece to be measured, Fig. 4 is an explanatory diagram of the process of measuring the inner diameter of the workpiece to be measured, Fig. 5 is a diagram showing an example of the supply structure for the workpiece to be measured, and Fig. 6 is the control FIG. 3 is a diagram showing an example of a circuit. 1...Conveyor, 2...Work to be measured, 3...Measurement stage, 4...Selection discharge stage, 1 3,1
4.1 5...first, second and third stoppers, 21
...Transfer unit, 22...Work support section, 23...1 21+! ! function sensor, 2 5, 2 6.
2 7...first, second and third ball supply pipes, 31
, 32.33...first, second and third stop cylinders, 3 4.3 5.3 6...first, second and third
ejection cylinder, 41, 42, 43, 44.45.46
...No. 18! function sensor.

Claims (1)

[Claims] 1. A measurement stage that sequentially supplies balls with different outer diameters to fall onto an annular workpiece and detects whether a particular ball passes or does not pass through the inner diameter of the annular workpiece using a first functional sensor; What is claimed is: 1. A sorting device for annular workpieces, comprising a sorting/discharging section for sorting the annular workpieces according to their inner diameters after measurement. 2. A measurement stage that sequentially supplies balls with different outer diameters that fall onto the annular workpiece and uses a sensor to detect whether a particular ball passes or does not pass through the inner diameter of the annular workpiece, and uses the detection output to detect the annular workpiece after measurement. A sorting device for annular workpieces is composed of a sorting and discharging section that sorts by inner diameter, and includes a conveyor that sequentially supplies annular workpieces to be measured, a measurement stage installed in the middle of the conveyor, and a measuring stage that separates multiple annular workpieces to be measured. a transfer unit that transfers the measurement sphere between the supply pipes; a second function sensor that counts the number of reciprocations of the transfer unit; a first function sensor that detects the presence of a non-measurement annular work that has been inspected by the ball; Sorting of annular workpieces characterized by a control circuit that outputs an output from a second functional sensor, and only a cylinder specified by the control circuit from among the plurality of cylinders of the sorting and discharging section is operated to sort the workpieces. Device. 3. The control circuit sends ON and OFF signals of the pair of first functional sensors that detect the presence of the balls supplied from the first measuring ball supply pipe, and a specific number of times of the second functional sensor. ON and OFF signals of a pair of first functional sensors controlling the first selective ejector to be operated only at each output and detecting the presence of the sphere supplied from the second measuring sphere supply pipe; controlling the second selective discharge unit to be operated only in response to a signal and each output of the second functional sensor a specific number of times;
Only when the ON signal and OFF signal of the pair of first functional sensors that detect the presence of the sphere supplied from the third measuring sphere supply pipe, and the output of the second functional sensor a certain number of times, the third measuring sphere is detected. 3. The annular workpiece sorting apparatus according to claim 2, wherein the selective discharge section is controlled to be moved. 4. A measurement stage that sequentially supplies balls with different outer diameters that fall onto the annular workpiece and uses a sensor to detect whether a particular ball passes or does not pass through the inner diameter of the annular workpiece, and uses the detection output to detect the annular workpiece after measurement. In a sorting device for annular workpieces, which is composed of a sorting and discharging section that sorts by inner diameter, first, second, and third stoppers are provided on the conveyor to supply pieces one by one to a measuring stage, and selective operation control of the stoppers is provided. A sorting device for annular workpieces, characterized in that the workpieces that are continuously fed through a circuit are temporarily stopped and then fed one by one to a measurement stage. 5. The selective actuation control circuit raises the first stopper and raises the second stopper.
The workpiece being conveyed is stopped by the first stopper, the subsequent workpiece is stopped by the first stopper, one workpiece is stopped by the third stopper, and the subsequent workpiece is stopped by the second stopper. Claim 4: The actuators of the first, second, and third stoppers are controlled so that the third stopper can be raised and transferred to the measurement stage.
A sorting device for annular workpieces as described in Section 1.