JPH08103734A - Part assoring device - Google Patents

Abstract

PURPOSE: To provide an assorting device of no change with time in which unnecessary movement is eliminated, although the device is of a simple structure and obviates the necessity of development of progress for registration. CONSTITUTION: A device consists of a distribution section 2 for distributing parts 5 while rotating, a driving section 3 for controlling the rotation of the distribution section 2 in compliance with the measurement result of a measuring section 6 and a storing section 4 for storing the distributed parts 5 according to the respective ranking. The distribution section 2 consists of a cylindrical chute 2a in which parts 5 are pressed while sliding and a cam 2b for rotating the chute 2a, while the driving section 3 consists of a plurality of cylinders 3a, 3b and 3c with shafts expanding and contracting by air pressure or the like, a shaft 35 for driving the cam 2b of the distribution section 2, a slider 3d fixing the cylinders 3a and 3b and moving by the expansion and contraction of the shaft of the cylinder 3c and a support stand 3e for supporting the abvove- said components. Also the storing section 4 consists of a plurity of assoring cases 4a-4h for storing the distributed parts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for classifying parts,
Specifically, it relates to a drive mechanism of the classification device.

[0002]

2. Description of the Related Art Conventionally, when classifying (ranking) electronic parts and the like according to their electrical characteristics, a classifying apparatus whose main part is shown in FIG. 2 has been used. Figure 2
The sorting apparatus in 1) distributes the parts 5 while rotating, the drive unit 7 that controls the rotation of the distribution unit 2 according to the measurement result of the measuring unit 6, and the distributed parts for each rank. It comprises a storage part 4 for storing. The distribution unit 2 is composed of a cylindrical shooter 2a through which the component 5 slides, and a gear 2e fixed to the shooter 2a to rotate the shooter 2a. The drive unit 7 measures at the measurement unit 6. A pulse motor (also referred to as a stepping motor) 7a rotated at a rotation angle corresponding to the number of pulses input based on the result, and a gear 7b for transmitting the rotation of the pulse motor 7a to the distribution unit 2. Further, the storage unit 4 has a plurality of sorting boxes 4 for storing the sorted parts 5.
It consists of a to 4h.

Next, the operation will be described. The parts 5 whose characteristics have been measured by the measurement unit 6 such as a tester are the distribution units 2
Is thrown into the shooter 2a and then falls into each sorting box from the other opening 2d. Before the component 5 is put into the shooter 2a, the pulse motor 7a rotates according to the measurement result from the measuring unit 6, and the gear 7b and the gear 2d are rotated.
By rotating the shooter 2a via the
Are guided to the classification box according to each measurement result and classified.

[0004]

In the above-described parts sorting apparatus, a special program for controlling the number of pulses must be developed in order to align the positions of the openings 2d of the shooter 2a and the sorting boxes. In addition to the problem that it does not occur, unless the shooter 2a is returned to the reference position (origin) in a timely manner to perform the alignment, the positional relationship between the opening 2d of the shooter 2a and each classification box is displaced during repeated rotation. However, it may be put in a classification box different from the classification based on the measurement result, and even if there are parts of the same rank, it will return to the origin once, so the sorting operation is wasteful and takes time. There is also. In addition, in order to prevent positional deviation, classification may be performed while detecting the position using a sensor, etc., but in this case, a sensor circuit for position detection is required separately in addition to the motor, and for control There is a problem that the program of becomes complicated.

Therefore, the present invention solves these problems, and provides a parts classifying device which has a simple structure, has no unnecessary movement, does not require the development of a program for alignment, and does not change with time. To aim.

[0006]

In order to solve the above problems, a parts classifying apparatus according to a first aspect of the present invention comprises a reciprocally rotatable shooter part for moving parts while sliding them. In a classifying device that classifies parts into a plurality of classes by rotating a shooter part according to a characteristic, the turning angle of the shooter part is controlled by combining a plurality of cylinders and changing a stroke distance.

[0007]

According to the parts classifying apparatus of the present invention, since the rotation of the shooter portion is digitally controlled, the rotation angle does not change with time and deviate.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A parts classifying apparatus which is an embodiment of the present invention will be described in detail below with reference to FIG. In the present specification, the same or similar parts will be denoted by the same reference symbols throughout the drawings. FIG. 1 shows a main part of a device for classifying parts according to the present invention. The classification device in FIG. 1 includes a distribution unit 2 that distributes components 5 while rotating, and a drive unit 3 that controls the rotation of the distribution unit 2 according to the measurement result of the measurement unit 6.
And a storage section 4 including a plurality of classification boxes 4a to 4h for storing the sorted parts 5 for each rank. The distribution unit 2 is composed of a cylindrical shooter 2a through which the component 5 passes while sliding, and a cam 2b fixed to the shooter 2a so as to rotate the shooter 2a. A plurality of cylinders 3a, 3b, 3c whose shafts expand and contract due to the above, and a shaft 3f connected to the cylinders for driving the cam 2b of the distribution unit 2,
The cylinder 3a and the cylinder 3b are fixed, and the shaft of the cylinder 3c is expanded / contracted so that the slider 3d moves in parallel on a support base, which will be described later, and a support base 3e that supports these. Further, the storage unit 4 is composed of a plurality of classification boxes 4a to 4h for storing the sorted parts.

As a method for smoothly moving the slider 3d, there are methods such as inserting wheels and rollers into the slider 3d and the support 3e, making the slider float by air pressure, and sandwiching a lubricant. . Further, the shape of the shooter 2a is not limited to the cylindrical shape as long as it can slide the component 5 without jumping out. Next, the operation will be described. A component 5 such as a light emitting diode whose luminance (brightness) characteristic is measured by a measuring unit 6 such as a tester is put into the opening 2c of the shooter 2a, slides down in the shooter 2a, and corresponds to the measurement result from the other opening 2d. Drop into each classification box. Before the component 5 is put into the shooter 2a or while sliding down in the shooter 2a, the shaft of each cylinder expands and contracts according to the measurement result of the measuring unit 6, so that the cam 2b moves through the shaft 3f. Since the shooter 2a is rotated, the parts 5 are guided to the classification boxes 4a to 4h according to the respective measurement results and classified according to the brightness of the light emitting diodes.

Table 1 shows an example of setting the rotation angle of the sorting unit 2 of the sorting apparatus of the present invention.

[0011]

[Table 1]

In Table 1, the cylinder name represents each cylinder used in the drive unit 3, the rank represents the number of the classification box shown in FIG. 1, and the short mark in the table indicates that the shaft of each cylinder is pulled in. It means that the shaft is getting shorter, and the indication of the length means that the shaft is extending. Cylinder 3
Based on the stroke distance of “a” and the rotation angle of the distribution unit 2 based on the stroke distance (20 degrees), the rotation angles of the cylinders 3b and 3c are twice and four times that of the cylinder 3a, respectively, as shown in the remarks column. I am trying. Further, the combination angle indicates the total rotation angle when the expansion and contraction of each cylinder are combined, based on the rotation angle of the distribution unit 2 when only the shaft of the cylinder 3a extends.

As can be seen from Table 1, since the rotation angle of the distributing portion 2 can be changed only by expanding and contracting the shafts of the cylinders, if three types of cylinders are used, they can be rotated at evenly spaced angles.
Classification of types can be done digitally. Therefore,
Since the rotation angle does not change with time, control can be performed at high speed, and position detection and the like need not be performed. Although the cylinders having different stroke distances are used in the present embodiment, the cylinders having the same stroke distance may be combined and the rotation angle may be changed according to the characteristics. Further, the expansion and contraction of the cylinder may be performed not only by pneumatic pressure but also by hydraulic pressure or magnetic force. The signal for controlling the drive unit 3 can perform the distribution operation by simply decoding the measurement result of the measurement unit 6 and driving the cylinders so as to expand and contract. May be driven. As for the rank, not only the difference in electrical characteristics but also the case where all the cylinders are short may be regarded as a defective product.

In this embodiment, the classification according to the brightness of the light emitting diode is shown.
It can be used to classify electronic parts such as semiconductor devices according to various electrical characteristics, and also to classify according to size and weight. In addition, the sorting boxes are not limited to the box-like one as shown in FIG. 1, but the sorted parts may be sequentially packed in a cylindrical container, or may be sequentially attached to a tape or the like. .

[0015]

As described above in detail, according to the present invention, since the drive unit 3 operates digitally, the rotation angle does not change with time, and the alignment between the shooter 2a and each classification box is first performed. The effect is that classification can be performed with high reliability simply by performing it, and maintenance is unnecessary. Further, since unnecessary operation such as position detection is not required, there is an effect that classification can be performed at high speed. Furthermore, since an inexpensive cylinder can be used, there is an effect that the equipment cost can be reduced.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a main part of a device for classifying parts according to the present invention.

FIG. 2 is an explanatory diagram showing a main part of a conventional device for classifying parts.

[Explanation of symbols]

 2: Distribution unit 3: Drive unit 3a, 3b, 3c: Cylinder 3d: Slider 3e: Support base 4: Storage unit 5: Parts 6: Measuring unit

Claims (1)

[Claims] 1. A sorting apparatus, comprising a shooter unit capable of reciprocatingly rotating a component while sliding the component, and rotating the shooter unit according to the characteristics of the component to sort the component into a plurality of categories. A device for classifying parts, wherein the turning angle of the shooter portion is controlled by changing the stroke distance in combination.