JPH0673400B2 - Polarity alignment device for polarized parts - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polar alignment device for polar parts, which is effective for use in a chip part mounting machine mainly used in printed circuit board assembly.

Structure of Conventional Example and Its Problems Conventionally, there is no chip component mounting machine capable of mounting chip components having polarity while aligning them, and as shown in FIG. I was adopting the method of doing. Moreover, as shown in FIG. 2, in the equipment for supplying in bulk, it was not possible to mount the chip component 1 having polarity at all. For these reasons, it has been strongly desired to mount the polar component on the chip component mounting machine used in the printed circuit board assembly. 1 and 2
In the figure, 2 is a reel, 3 is a tape, 4 is a component storage holding band, and 5
Is a parts cassette, and 6 is a pipe chute.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to propose a small-sized and high-performance polar alignment device for polar parts that can be mounted on a chip part mounting machine supplied in bulk. is there.

In order to achieve this object, an apparatus for aligning and supplying polar components according to the present invention comprises a supply unit for supplying polar components and a plurality of holes provided at equal intervals so as to be inserted in the radial direction. Of the polarity determination drum, which is equipped with a ring-shaped polarity determination drum that accommodates the polar parts supplied from the section and rotates intermittently, and a through hole that linearly communicates the hole provided in this polarity determination drum in the radial direction. The polarity of the fixed electrode mounting shaft that is slidably mounted in the inner peripheral portion in the axial direction and the polarity of the polar component housed in the hole of the polarity determination drum in the path in which the polarity determination drum rotates intermittently. The polarity, which is formed in the same manner as the determination unit and the polarity determination drum, is intermittently rotated synchronously, and is disposed adjacent to the lower portion of the polarity determination drum so that the polar parts intermittently conveyed by the polarity determination drum are dropped. With alignment drums , A shutter shaft axially slidably incorporated in the inner peripheral portion of the polar alignment drum with a through hole that linearly communicates the hole provided in the polar alignment drum in a radial direction,
When the polar component stored in the hole of the polarity determining drum and intermittently conveyed is dropped into the hole of the polarity aligning drum that rotates synchronously, the direction of the dropped polar component is determined by the result of the polarity determining unit. In the case of a predetermined direction, the holes of the polar alignment drum are linearly communicated with each other through the through hole provided in the shutter shaft to drop the polar component as it is into the lower part of the polar alignment drum and take it out. If the parts are in the opposite direction, slide the shutter shaft in the axial direction to shut off the communication state, and continue the intermittent rotation with the polar parts housed in the holes of the polar alignment drum. When the alignment drum rotates 180 degrees intermittently, the polar parts are dropped and taken out, so that the polar parts are aligned and taken out.

According to this configuration, since there is no useless movement in the operation of the device, it is possible to reduce the size and execute the mounting of the polar component in the bulk supply type chip component mounting machine at high speed and with high reliability. In addition, it is possible to realize the assembly of the polar component on the printed circuit board at low cost.

Description of Embodiments An embodiment of the present invention will be described below with reference to the drawings.

First, the concept of the polar alignment device for polar parts according to the present invention will be described with reference to FIGS. 3 and 4. As shown in the figure, the ring-shaped polarity determining drum 7 and the polarity aligning drum 8 each having a plurality of holes 7a, 8a radially and equally arranged in the radial direction (four in the figure) are in contact with each other. Are vertically arranged and attached to the apparatus main body 9 so as to rotate synchronously by an appropriate means. The rotations of the polarity determining drum 7 and the polarity aligning drum 8 are indexed by 90 ° at the positions shown in FIG. A fixed electrode mounting shaft 10 is inserted in the center of the polarity determining drum 7, and a fixed electrode 11 is attached to the fixed electrode mounting shaft 10 corresponding to the hole 7a at one indexing position of the polarity determining drum 7.
Installed on. The fixed electrode mounting shaft 10 and the polarity determination drum 7 are made of an insulator. A movable electrode 12 is attached to a position corresponding to the fixed electrode 11 on the outer periphery of the polarity determination drum 7 by a contact lever 13 made of an insulator, and the movable electrode 13 is a spring or the like in the direction of arrow A,
That is, it is pressed against the polarity determination drum 7 side. Further, as shown in FIG. 4, the fixed electrode mounting shaft 10 is biased in the direction of arrow B _{1 by a} spring or the like, and can be pushed in the direction of arrow B _{2 by a} finger or the like against the biasing force, The mounting shaft 10 is formed with a through hole 10a having the same size as that of the through hole 10a which linearly communicates with the hole 7a at the upper and lower positions when pushed. Further, a shutter shaft 14 is provided at the center of the polar alignment drum 8.
The shutter shaft 14 can be set in any of the directions of the arrows D ₁ and D ₂ by a solenoid or the like, and when the shutter shaft 14 is moved in the direction of the arrow D ₁ , the hole 8a at the upper and lower positions is inserted. The shutter shaft 14 is formed with a through hole 14a having the same size as that of the through hole 14a so as to communicate linearly with. Further, 15 is a chip component having a polarity such as a diode.
The sizes of 7a, 8a and through holes 10a, 14a are set. The chip parts 15 are attached in an aligned state from the holes of the supply chute block 16 through the holes 7a, 8a of the polarity determining drum 7 and the polarity aligning drum 8 and guided into the holes of the chute block 17. Reference numeral 18 is a support shaft for the contact lever 13.

Next, the operation will be described step by step. First, the chip parts 15 are stacked in a random state in the holes of the supply chute block 16, and one of the chip parts 15 falls into the hole 7a of the polarity determination drum 7 at the position a. Since the fixed electrode mounting shaft 10 is inserted through the center of the polarity determination drum 7, the chip component 15 that has entered the hole 7a is stored and retained in the hole 7a without falling, and the chip components 15 that follow are supplied. It remains inside the hole in the chute block 16. now,
The polarity judgment drum 7 and the polarity alignment drum 8 are respectively indicated by an arrow E.
When rotated by 90 ° in the F direction and the F direction, the chip component 15 located at the position a comes to the position b as it is still inside the hole 7a. At this position b, the chip component 15 is sandwiched between the fixed electrode 11 and the movable electrode 12, and the polarity is checked. At this time, the next chip component 15 is supplied from the hole of the supply chute block 16 into the next hole 7a which has come to the position of a, and the chip components 15 are successively dropped into the hole 7a and stored in the same manner. Become. Furthermore, when the polarity determination drum 7 is indexed by 90 ° from the polarity check position b, the polarity of the chip component 15 is checked by c.
Is conveyed to the position of and the polarity judgment drum 7
From the hole 7a of the polar alignment drum 8 into the hole 8a of the polar alignment drum 8. At this time, if the polarity checked at the position b of the chip component 15 is the forward direction, the shutter shaft 14 is at the position driven by a solenoid in the direction of arrow D ₁ shown in FIG. It is taken out from the hole 8a at the position e through the through hole 14a of the shaft 14 and dropped into the hole of the chute block 17.

On the other hand, if the checked polarity is in the opposite direction, the shutter shaft 14 is positioned in the direction of arrow D _{2 in the} state shown in FIG. 4 due to the electrically processed solenoid, etc., and the chip component 15 does not drop. Have the next index. And the polar alignment drum 8
Is indexed by 90 °, the chip component 15 is conveyed to the position of d while being stored in the hole 8a, and further indexed by 90 °, it reaches the position of e. At this position e, the chip component 15 falls into the hole of the take-out chute block 17. At this time, the chip component 15 is rotated 180 ° from the state at the position c to the forward direction, and the alignment of the polarities is completed.

Now, in the chip component mounting machine, the chip components are frequently switched. At this time, in FIG. 4, the shutter shaft 14 is set in the direction of arrow D ₁ , and the fixed electrode mounting shaft 10 is set in the direction of arrow B ₂
When you press it with your finger in the direction, a passage that connects in a straight line is formed,
The polarity determination drum 7 and the polarity alignment drum 8 are passed through this passage.
Also, all the chip parts 15 in the supply chute block 16 can be dropped, and the parts can be switched extremely easily.

Furthermore, a concrete embodiment of the present invention will be described in conjunction with FIG.
The same parts as those in FIG. 4 and FIG. 4 are designated by the same reference numerals for description.
First, in the supply chute block 16, a supply pipe chute 19 from which a chip component 15 falls from a supply component (not shown)
Is mounted, and the pick-up chute block 17 is mounted with a pick-up pipe chute 20 on which the chip parts 15 whose polarities are aligned fall down. Furthermore, the supply chute block 16 and the pick-up chute block 17 are chip-parts. Supply confirmation photo switch 21, which detects the presence or absence of 15,
A takeout confirmation photo switch 22 is installed. Also,
The shaft 14 for the shutter uses a solenoid 23 to stop the rotation of the lever 2.
4, driven via the compression spring 25. On the other hand, a rotation stop lever 26 is attached to the fixed electrode attachment shaft 10 so as not to rotate, and is biased by a compression spring 27.
Further, the polarity determining drum 7 and the polarity aligning drum 8 have a gear 28.
And 29 are synchronized with each other, and the gears 28 and 29 are indexed 90 ° by the pulse motor 30 via the gears 31 and 32 attached to the pulse motor 30. Reference numeral 33 is a spring that biases the contact lever 13.

Then, if the supply confirmation photoswitch 21 detects the chip component 15 and the takeout confirmation photoswitch 22 does not detect the chip component 15, the polarity confirmation is performed by the operation as described above, and the supply confirmation photoswitch 21 is the chip. If the component 15 is not detected or the takeout confirmation photoswitch 22 continues to confirm the chip component 15, the polarity alignment of the chip component 15 is stopped.

The polar alignment device for polar parts of the present invention is actually used by being mounted in large numbers on a bulk supply type chip part mounting machine. Further, in the above description, the polarity discrimination is checked using the fixed electrode 11 and the movable electrode 12, but this is performed by using the pattern recognition device and the chip component 15
It is also possible to make a distinction by the formation of, the color code display, or the like.

As described above, the polarity aligning device for polar parts in the present invention is configured, and the polarity determining drum and the polarity aligning drum which are vertically arranged so as to intermittently rotate in synchronization with each other are provided. The work can be continued without pausing and rotating in the opposite direction, and the polar parts can be sequentially taken out with the same polarity, and there is no unnecessary movement in the operation of the device, so the device can be downsized. Not only can a simple structure be achieved, but also a high-speed and highly reliable device can be provided at low cost.

Further, by mounting the polarity aligning device for polar parts on the chip part mounting machine, bulk type chip parts having a polarity, which was impossible in the past, can be mounted on the printed circuit board by the chip part mounting machine while aligning the polarities. It will be possible.

[Brief description of drawings]

FIG. 1 is a perspective view showing a conventional taping packaged product of polar parts, FIG. 2 is a perspective view showing a conventional bulk packaged state of polar parts, and FIG. 3 is a polarity of polar parts according to the present invention. FIG. 4 is a schematic sectional view showing the basic structure of the aligning device as seen from the front side, FIG.
The drawing is a perspective view showing a specific embodiment of the device of the present invention. 7 ... Polarity determination drum, 8 ... Polarity alignment drum, 7a, 8a
…… Hole, 15 …… Polar component (chip component).

Front page continued (72) Inventor Mitsuharu Nakamura 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References Y2)

Claims (1)

[Claims] 1. A ring-shaped member for supplying a polar component and a ring-shaped member for accommodating the polar component supplied from the supply unit in a plurality of holes provided at equal intervals so as to be inserted in a radial direction and rotating intermittently. Of the polarity determination drum, and a fixed electrode mounted axially slidably in the inner peripheral portion of the polarity determination drum, having a through hole that linearly communicates the hole provided in the polarity determination drum in the radial direction. A shaft, a polarity determination unit that determines the polarity of a polar component housed in the hole of the polarity determination drum in a path in which the polarity determination drum rotates intermittently, and is formed and synchronized in the same manner as the polarity determination drum. Polarity alignment drum that is placed adjacent to the lower part of the polarity determination drum so that the polar parts that are intermittently rotated by the polarity determination drum and intermittently conveyed by the polarity determination drum are dropped, and the holes provided in this polarity alignment drum are straight in the radial direction. Penetrating in the shape of A polar alignment that is composed of a shutter shaft that is axially slidably installed in the inner periphery of the polar alignment drum and that has a hole and is intermittently conveyed in the hole of the polarity determination drum. When it is dropped into the hole of the drum, if the direction of the dropped polar component is a predetermined direction according to the result of the polarity determination unit, the polarity alignment drum is inserted through the through hole provided in the shutter shaft. The linear parts are communicated with each other linearly and the polar parts are dropped as they are into the lower part of the polar alignment drum to take them out.If the polar parts are in the opposite direction, slide the shutter shaft in the axial direction. Polarity is maintained by interrupting the above-mentioned communication state and continuing the intermittent rotation with the polar parts stored in the holes of the polar alignment drum, and dropping the polar parts by gravity when the polar alignment drum rotates 180 ° intermittently. The polarity of the parts A polar alignment device for polar parts so that they can be taken out in line.