JPH1159871A - Parts obverse/reverse aligning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a parts obverse/reverse aligning device whereby a part can be aligned to be purely conveyed at a high speed arranging its obverse/ reverse side in good order. SOLUTION: An obverse/reverse side of a part conveyed from two chutes 14 is detected in a photoelectric obverse/reveres detector 15, and these parts are alternately intermittently rotated by two sets of ring-shaped tables 16a, 16b, to be stored in a slit formed radially in an upper surface thereof. Based on an obverse/reverse detection result, the obverse facing part with the direction left as it is and the reverse facing part after inverting the obverse/reverse on the intermittently rotating table 16a, 16b are discharged. The part discharged from the two tables 16a, 16b is made in a single row in a confluent chute 17, to be 90 degrees turned by a twist chute 18, so that the obverse/reverse straightened part can be supplied to the next process at a high speed and stably.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for aligning and conveying parts at a high speed with the front and back of the parts aligned.

[0002]

2. Description of the Related Art Small components supplied to a manufacturing line or an inspection line have the same geometric dimensions on the front and back, but have different characteristics on the front and back. . FIG. 9 shows a chip resistor 1 used for a printed board as an example. This chip resistor 1 is a rectangular parallelepiped thin rectangular parallelepiped whose front surface 2 and back surface 3 have the same dimensions. Two electrodes are embedded in the front surface 2 with a resistor in between, and the back surface 3 side is attached to a printed board.

In order to supply the small components, a vibrating parts feeder is often used in which a bowl containing these components is vibrated to align and supply the components in a desired posture. However, components such as the above-described chip resistor 1 that have the same geometric dimensions on the front and back and have only the characteristics on the front and back and have directivity can be aligned with the vibrating part feeder, but the front and back are aligned. There is a problem that cannot be done.

In order to solve the above-mentioned problem, Japanese Patent Publication No. 1-3489
In Japanese Patent Application Publication No. 4 (1993) -104, a track having a V-shaped cross section is provided in a bowl of a vibrating parts feeder, and the front and back of a part arranged and conveyed along one inclined surface of the track are detected. A method is disclosed in which a component facing down is turned over to the other inclined surface with air or the like so as to be turned upside down, and the components conveyed on both inclined surfaces are merged in a single row.

Japanese Unexamined Patent Publication No. 7-206143 also discloses that a track having a V-shaped cross section detects the front and back of a part, and a part facing backward is slid on an opposing inclined surface. There is also disclosed a method of inverting the components and aligning the components on the inclined surface in a single row.

The above-described conventional method of providing a track having a V-shaped cross section on the bowl of the vibrating parts feeder and inverting the parts with this track has the following problems.

[0007] Since many target components, such as chip resistors, are very small, it is necessary to reduce the amplitude of the bowl in order to reduce the dance of the components, and the transport speed of the components is reduced. In order to increase the conveying speed, even if the vibrating parts feeder is of a high-frequency type, the maximum conveying speed that can be obtained at present is about 5 to 6 m / min. At this speed, only about 1500 parts per minute are required for chip resistors. Can not supply.

The reversing operation of the parts by the air or the like involves a delay in the response time of the front / back detection device or the reversing device. Therefore, the position at which the air or the like hits the high-speed moving parts is shifted, and the reversing operation cannot be performed reliably. The certainty of this reversal operation decreases as the transport speed increases. Also, the position and angle of the component inspection surface may fluctuate due to the above-described component dance, and the front and back detection devices such as optical sensors may detect the front and back erroneously.

SUMMARY OF THE INVENTION An object of the present invention is to provide a component front and back aligning apparatus capable of aligning and transporting a component with high speed and certainty.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a component front and back aligning apparatus according to the present invention includes means for detecting the front and back of a conveyed component, and storing the component with its front and back sideways. A ring-shaped table that rotates intermittently, a single passage that penetrates the inside of the ring of the table, and a unit that discharges the components stored in the table in one direction with the front and back aligned in the horizontal position. In the ring-shaped table, the components in the horizontal orientation are radially stored one by one, and a plurality of spaces penetrating the inner peripheral surface and the outer peripheral surface thereof are provided. Means for forming the height position and cross-sectional shape of the bottom surface in accordance with the space and discharging the components stored in the table in one direction with the front and back aligned, storing the components corresponding to the signals of the front and back detection means. I Space, when it came to one of two positions connected to both ends of the passage through the ring inner side of the table, it was adopted a structure for discharging the parts on the basis of the signal.

That is, the front and back of the conveyed parts are detected, and each of these parts is stored one by one in a plurality of radially provided spaces on a ring-shaped table that rotates intermittently. If it is determined that the space in which the component is housed comes to a position connected to a predetermined end of a passage that penetrates the inside of the ring of the ring-shaped table, and if it is determined that the space is behind, if the space is determined to be the back, When the part arrives at a position connected to the end, the part is discharged from the ring-shaped table so that the front and back of each part are aligned and supplied to the next process.

The two ring-shaped tables are arranged in parallel, these tables are rotated intermittently and alternately, and the merging chutes that merge with each other are connected to the component discharge ports of each table. The parts discharged from the ring-shaped table can be arranged in a line, and the supply speed of the parts to the next process can be doubled.

Means for intermittently rotating the two ring-shaped tables alternately include an eccentric shaft mounted on a continuously rotating rotary shaft and two eccentric shafts rotatably mounted on the eccentric shaft via bearings. It comprises a ratchet pawl and two ratchet wheels mounted coaxially with the two ring-shaped tables. The ratchet pawls are formed so as to be pressed against the teeth of the ratchet wheels with the tips of the ratchet pawls facing in opposite directions to each other. Then, it is possible to adopt a method in which the ratchet wheels are alternately rotated intermittently by the reciprocating motion of the two ratchet claws, and this motion is transmitted to the rotating shafts of the two ring-shaped tables.

That is, by continuously rotating the rotary shaft, the rotary shaft is attached to the rotary shaft via an eccentric shaft.
Two ratchet pawls reciprocate left and right, the tip of each ratchet pawl alternately engages two ratchet wheels arranged on the left and right, and intermittently rotate these ratchet wheels alternately by the pitch of their teeth. Can be.

The intermittent rotational movement of the ratchet wheel can be easily transmitted to the coaxial ring-shaped table even by engagement of a key, a pin, or the like. And the ball
It consists of a spring that presses the ball against the teeth, and adopts a method of fixing the spring to the rotating portion of each of the ring tables. When an overload is applied to the rotation shaft of the ring table, the ball is It escapes to the spring side, the engagement with the teeth of the ratchet wheel is released, and only the ratchet wheel rotates, thereby preventing the ring-shaped table from being overloaded.

In addition, the maintenance of the ring-shaped table is facilitated by opening each space of the ring-shaped table upward, and detachably attaching a lid to the opening of each space without fastening parts. Can be.

Further, by turning the component in the horizontal position by 90 degrees and connecting a torsion chute that aligns the surface of the component upward to the component discharge port of the ring-shaped table or the exit of the merging chute, The part can be turned face up and supplied to the next step.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 and FIG. 2 show a state in which a component front and back aligning device is incorporated in a vibration type part feeder. 1 is a plan view and FIG. 2 is a front view.

The front and back aligning device 6 is arranged at the outlet side of the high-frequency linear feeder 5 arranged at the component supply port of the high-frequency vibration type part feeder 4, and the front and back aligning device 6 is aligned at the outlet side. Conveyor 9 for sending parts to the next process
Is arranged. These are installed on an integrated base 7,
The base 7 is also provided with a control panel 8 for controlling the operation of each device as a whole.

The vibrating parts feeder 4 is of a normal type in which a vibrating body joined by a leaf spring is rotated and vibrated by a magnet. A bowl 10 in which the chip resistor 1 shown in FIG. Installed. The chip resistor 1 is put in the center bottom 11 of the bowl 10 and moves upward along a spiral track 12 provided on the outer peripheral side wall of the bowl 10 as the bowl 10 vibrates. The bowl 10 has a branch 2 from the bottom 11.
A track 12 is provided for each chip resistor 1
Move into the two tracks 12 and are transferred from the two supply ports 13 connected to the respective tracks 12 to the straight-ahead feeder 5 in a posture in which the front and back sides are turned sideways.

The rectilinear feeder 5 is of a type in which a vibrator, which is also connected by a leaf spring, is reciprocated by a magnet, and two chutes 14 are attached to the vibrator. The chip resistor 1 stands in the width direction, moves the chute 14 in a posture in which the front and back surfaces are laterally turned, and is transferred to the front and back alignment device 6.

FIG. 3 shows the front and back aligning device 6 in an enlarged manner. The front and back aligning device 6 is installed on the exit side of each chute 14 with a photoelectric type front and back detecting device 15 installed toward a detection hole provided near the end of each chute 14 and intermittently rotates alternately. Two ring-shaped tables 16
a, 16b, one passage passing through the inside of the ring of each table 16a, 16b,
a, 16b, which are connected to the respective outlet sides and merge with each other;
It is basically composed of a twisting chute 18 that turns 0 degrees.

The above-mentioned components are arranged on the same plane in the surface of a base plate 21 which is mounted on a mounting base 19 fixed to the base 7 with bolts 20 above.

The junction chute 17 is directly carved on the upper surface of the base plate 21, and the straight portion and the junction are covered with separate lids 22 and 23. The outlet of each chute 14 and each ring-shaped table 16
Two connection chutes 24 for connecting between the base plate 21 and the base plate 21 are also engraved and covered with a lid 25 described later.

The torsion chute 18 is fitted into a base plate 21 and is engraved on an elongated piece 26 fixed by a metal fitting 28 so that its cross section gradually turns 90 degrees. The tip of the piece 26 extends to the entrance of the guide plate 27 of the conveyor 9.

On the lower surface side of the mounting table 19,
A motor 29 for rotating the ring-shaped tables 16a and 16b intermittently is also mounted. The rotation of the motor 29 is controlled by a rotating shaft 32 by a square belt 30 and a pulley 31.
Has been transmitted to.

FIGS. 4 and 5 show details of the two ring-shaped tables 16a and 16b and a mechanism for intermittently rotating these two tables. FIG. 4 is a plan view and FIG. 5 is a longitudinal sectional view thereof.

Each of the ring tables 16a, 16b
Are formed in a cylindrical shape, and twelve slits 33 capable of accommodating the chip resistors 1 one by one in a lateral posture are radially provided at intervals of 30 degrees on an upper end surface thereof. Each of the ring tables 16a and 16b is rotatably fitted to a shaft 35 fixed to the mounting table 19 by a nut 34, and the lower end surface thereof is received by a resin seat 36 having a small coefficient of friction. Each ring-shaped table 16
a, a ring 16 with a flange on the outer peripheral surface of 16b,
Ratchet wheels 38a, 38b, brake shoe 3
9 are attached in order from the bottom.

The upper surface of each slit 33 of each of the ring tables 16a and 16b is covered with a lid 25. At the center of the lower surface of each lid 25, a boss 40 having a circular cross section that fits inside the rings of the ring tables 16a and 16b is formed, and a slit 41 penetrating the inside of the rings is provided here. This slit 41
Are the slits 3 of the ring-shaped tables 16a and 16b.
3, each of the ring-shaped tables 1
The path of the chip resistor 1 is formed with the upper surface of the shaft 35 to which 6a and 16b are fitted as a floor.

Each of the lids 25 is connected to the base plate 21.
The boss 40 is simply placed on the inside of the rings of the ring tables 16a and 16b, and can be easily attached and detached. Further, each lid 25 is provided with an air nozzle and the like to be described later for discharging the chip resistor 1.

In this embodiment, the slit 41 penetrating the inside of the ring is provided on the lid 25 side. However, the shaft 35 may be extended upward and a slit may be provided here. In this case, a pin or the like for positioning the lid 25 needs to be attached to another location.

Each of the rings 37 is pressed and fixed to the ring tables 16a and 16b by screw pins 43, and rotates together with the ring tables 16a and 16b. Its flange has twelve small holes at intervals of 30 degrees. 44 are provided. A semicircular ring-shaped leaf spring 45 is attached to the outer peripheral surface of each ring 37 with a screw 46, and a ball 47 is fixed to the distal end thereof.

The small hole 44 is provided in each ring-shaped table 16.
a, 16b for detecting the rotational positions of the optical sensors 48a and 16b.
Then, the presence or absence of the small holes 44 on the detection holes 49 and the number of the small holes 44 passing over the detection holes 49 are detected. Various methods, such as a combination of a high-frequency induction type sensor and a protruding iron piece, can be adopted as the rotational position detecting means of the ring-shaped tables 16a, 16b.

Each of the ratchet wheels 38a, 38b
Has 12 teeth each of which meshes with ratchet pawls 50a and 50b, which will be described later. A ball 47 fixed to the leaf spring 45 is pressed against each of the teeth. The ring-shaped tables 16a and 16b are rotatably fitted to the ratchet wheels 38a and 38b, and are engaged with the teeth of the ratchet wheels 38a and 38b via the leaf spring 45 and the ring 37. Thus, the rotation of the ratchet wheels 38a, 38b is transmitted. Therefore, when the ring-shaped tables 16a, 16b are overloaded, the ball 47 pushes and expands the leaf spring 45, gets over the teeth of the ratchet wheels 38a, 38b, and only the ratchet wheels 38a, 38b idle. It has become.

The base of the brake shoe 39 is fixed non-rotatably by a bolt 51, and the split part at the tip is fastened to the outer peripheral surface of the ring-shaped tables 16 a and 16 b by a bolt 53 via a coil spring 52. The ratchet pawls 50a and 50b described later are connected to the ratchet wheel 38.
a, 38b, the ring-shaped table 16
a and 16b are prevented from being reversed with the ratchet wheels 38a and 38b.

The driving shaft of the motor 29 is provided with a square belt 30.
The rotary shaft 32 connected with the pulley 31 is mounted on the mounting base 19 via a bearing 54, and an eccentric shaft 55 is provided at an upper end thereof. The two ratchet claws 50a and 50b are attached to the eccentric shaft 55 via bearings 56 in directions opposite to each other. Each ratchet pawl 50a, 50b is provided with two coil springs 5
7 are pressed against the teeth of the ratchet wheels 38a, 38b, respectively.

With the rotation of the rotary shaft 32, the eccentric shaft 55
Rotates, and the two ratchet claws 50a, 50b
The reciprocating motion is performed in the left-right direction in FIG. 5 to alternately press the teeth of the left and right ratchet wheels 38a, 38b. Therefore, the right ratchet wheel 38a rotates counterclockwise,
The ratchet wheel 38b on the left side rotates intermittently in the clockwise direction alternately by one pitch of its teeth, that is, by 30 degrees.

The left and right ring-shaped tables 16a, 16
b denotes the ball 47, the leaf spring 45 and the ring 3 described above.
This rotation is transmitted via the motor 7 and rotates intermittently by 30 degrees in the same direction as each of the ratchet wheels 38a and 38b.
When the ratchet pawls 50a, 50b retreat, the ratchet wheels 38a, 38b are slightly reversed by friction with the teeth of the ratchet wheels 38a, 38b. It does not reverse because it is braked by the brake shoe 39.

FIGS. 6 to 8 show a main section near the ring-shaped table 16b on the left side of FIG.

FIG. 6 is a sectional view taken along line VI-VI of FIG. The chute 14 is filled with the chip resistor 1 fed by the rectilinear feeder 5 in a lateral posture, and near the end of the chute 14, the opto-electric front and back for detecting the front and back of the chip resistor 1 are provided. Detection hole 58 for detection device 15
Is provided. In addition, this photoelectric type front and back detection device 15
Can easily reverse the determination of the front and back sides by switching the switch, and if necessary, the direction of the chip resistor 1 to be supplied to the next step described later can be reversed.

After each chip resistor 1 has its front and back detected and stored by the photoelectric front and back detection device 15, the chip 1
4 are passed through the connection chute 24 from the outlet, and are stored one by one in the slits 33a of the ring-shaped table 16b connected to the connection chute 24.

In this embodiment, the photoelectric type front / back detection device 1
Although the detection hole 58 is provided in the chute 14 of the linear feeder 5, the detection hole 58 is formed sufficiently larger than the amplitude of the linear feeder 5, and high front / back detection accuracy can be secured. This detection unit has only a detection function, and the front and back alignment is performed by the front and back alignment device 6 which does not vibrate, so that the front and back of the chip resistor 1 can be surely aligned. The detection hole 58 may be provided on the side of the connection chute 24 that does not vibrate, and may be configured so that both detection and alignment are separated from the vibrating portion.

A pipe joint 59 connected to a vacuum generator (not shown) is attached to the lid 25 covering each slit 33 in order to accurately and quickly take the chip resistor 1 into the slit 33a. A hole 61 communicating with the mounting hole 60 of the joint 59 and the slit 33a is provided.

FIG. 7 shows a VII-VII section rotated 30 degrees clockwise from the VI-VI section in FIG. In this cross section, the two slits 33b, 33c of the ring-shaped table 16b
Are connected to both ends of a passage formed inside the ring formed by the slit 41 provided in the lid 25 and the upper surface of the shaft 35.

Air nozzles 62 and 63 are provided on the base plate 21 on the back surface of the slit 33b rotated by 30 degrees from the connection chute 24 and the lid 25 on the back surface of the slit 33c rotated by 210 degrees connected to the other end of the passage. Have been. The lid 25 is also provided with a hole 64 connected to the slit 41 and opening on the upper surface of the lid 25.

The air nozzle 62 is connected to an air source through a pipe joint 65 shown in FIG. 5, and the tip resistor 1 housed in the slit 33b is determined to be a front side by the photoelectric front / back detection device 15. In this case, air is blown out, and the chip resistor 1 is discharged from the passage inside the ring through the slit 33c to the merging chute 17 connected to the outlet side of the ring-shaped table 16b.

The control of the air injection from the air nozzle 62 is performed by delaying the detection signal of the front / back detection device 15 an appropriate number of times by an electronic circuit incorporating a shift register. That is, since the number of chip resistors 1 housed from the detection position of the front and back detection device 15 to the position of the slit 33b is known, the number of delays of the signal is determined based on this number. The timing of jetting air from the air nozzle 62 is determined based on the output of the optical sensor 48, and the optical sensor 48 is mounted on a ring 37 that rotates integrally with the ring table 16b. When the hole 44 is detected, air is jetted.

The air nozzle 63 is connected to another air source that constantly blows air through a pipe joint 66 attached to the lid 25. Therefore, the photoelectric type front / back detection device 15 determines that the side is the back side, and the slit 3
The chip resistor 1 not discharged at the position 3b is discharged from this position toward the merging chute 17. An air nozzle 68 for rejection, which will be described later, is also connected to the mounting hole 67 of the pipe joint 66.

A hole 64 opened in the upper surface of the lid 25 is air which is constantly ejected from the nozzle 63 by the chip resistor 1 housed in the slit 33b and is sucked into the passage inside the ring by a negative pressure. This is to prevent

The chip resistor 1 discharged from the air nozzles 62 and 63 is ejected because the cross sections of the merging chute 17 and the torsion chute 18 are substantially equal to the cross section of the chip resistor 1. The air immediately passes through the merging chute 17 and the twisting chute 18 and reaches the entrance of the guide plate 27 of the conveyor 9.
When the ring-shaped table 16b is rotated and the chip resistor 1 facing up is accommodated in the slit 33b of this section and the chip resistor 1 facing down in the slit 33c, two chip resistors are accommodated. 1 continuously passes through the chutes 17 and 18 and the guide plate 27
To the entrance of.

The chip resistor 1 sent to the ring table 16a on the right side is also discharged from the ring table 16a in exactly the same manner, passes through the merge chute 17 and the twist chute 18 and reaches the conveyor 9. To reach. As described above, the ring-shaped table 16a
Since the rotation is intermittently rotated alternately with the ring-shaped table 16b, the timing at which the two opposed slits 33 come to a position connected to the passage inside the ring is alternately shifted from the timing of the ring-shaped table 16b. The chip resistor 1 is the confluence chute 17,
Chip resistor 1 discharged from ring-shaped table 16b
Does not collide with

FIG. 8 is orthogonal to the VII-VII section of FIG.
VIII-VIII section is shown. The connection chutes 24 to 30
A chute 69 for rejecting the chip resistor 1 remaining in the slit 33d is carved in the base plate 21 on the back surface of the slit 33d rotated by 0 degrees. Further, the lid 25 is provided with an air nozzle 68 for discharging the chip resistor 1 to the chute 69, and the air nozzle 68 is connected to a pipe joint 66 connected to the air source that constantly blows air. Are in communication. The reject chute 69 removes the chip resistor 1 that could not be eliminated at the position of the slit 33 b or the slit 33 c, and removes the chip resistor 1, and the slit 33 a coming to a position connected to the connection chute 24.
Secondly, the next new chip resistor 1 can be always accepted.

The above-described front and back aligning device 6 includes the chip resistors 1 housed in the ring tables 16a and 16b.
Are discharged from the slit 33b in the same direction, and the reverse is discharged from the slit 33c by inverting the front and back, so that all the liquid discharged from the ring-shaped tables 16a and 16b is discharged. Of the chip resistor 1 can be surely aligned in the same direction,
These chip resistors 1 are connected by
It is arranged in a row, turned 90 degrees by the twisting chute 18 and fed to the conveyor 9 with its surface facing upward.

In the component aligning apparatus of this embodiment, for example, chip resistors 1 having a width of 1.6 mm and a length of 3.2 mm can be stably supplied at a rate of 3000 pieces per minute.

In the embodiment described above, the motor 29
In the embodiment, only the ring-shaped tables 16a and 16b are driven. However, the configuration may be such that the conveyor 9 is also used for driving. Further, as a means for intermittently rotating the ring-shaped tables 16a and 16b, a method of directly driving these rotating shafts by a servomotor or the like can be adopted. However, in this case, the control device becomes complicated and the cost increases considerably.

[0056]

As described above, the component obverse and reverse aligning apparatus of the present invention determines the obverse and reverse of a component on its entry side, and inserts the obverse and reverse sides of the component into the slit of the ring-shaped table that rotates intermittently. It is stored and, based on the result of the determination of the front and back sides, the components facing down are turned over on the table and then discharged, so that the components discharged from this table are surely aligned and supplied to the next process. can do. Also, the two ring-shaped tables are arranged in parallel, and the two ring-shaped tables are alternately rotated intermittently so that the ejection timing of the components from each table is reliably shifted at an extremely short pitch. By connecting the joining chutes that join each other to the discharge port of each table, these ejected parts can be smoothly united with the joining chutes without colliding, and the supply speed of parts to the next process is doubled Can be done. Further, by connecting a twisting chute for turning the component in the horizontal position by 90 degrees to the discharge port of the ring-shaped table or the outlet of the merging chute, the surface of the component is aligned upward and supplied to the next step. be able to.

[Brief description of the drawings]

FIG. 1 is a plan view showing a state in which a component front and back aligning apparatus according to an embodiment is incorporated in a vibration type part feeder.

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a plan view showing the component front and back aligning apparatus of FIG. 1;

FIG. 4 is a partial cross-sectional plan view showing an enlarged main part of FIG. 3;

FIG. 5 is a sectional view taken along line VV in FIG. 4;

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 4;

FIG. 7 is a sectional view taken along the line VII-VII in FIG. 4;

8 is a sectional view taken along the line VIII-VIII in FIG.

FIG. 9 is an external perspective view of a chip resistor.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 chip resistor 2 front surface 3 back surface 4 vibrating parts feeder 5 linear feeder 6 front and back alignment device 7 base 8 control panel 9 conveyor 10 bowl 11 bottom 12 track 13 feed port 14 chute 15 front and back detection device 16a, 16b table 17 merge chute 18 Torsion chute 19 Mounting stand 20 Bolt 21 Base plate 22, 23 Lid 24 Connection chute 25 Lid 26 Piece 27 Guide plate 28 Hardware 29 Motor 30 Square belt 31 Pulley 32 Rotary shaft 33, 33a, 33b, 33c, 33d Slit 34 Nut 35 Shaft 36 seat 37 ring 38a, 38b ratchet wheel 39 brake shoe 40 boss 41 slit 42 pin 43 screw pin 44 small hole 45 leaf spring 46 screw 47 ball 48 sensor 49 detection 50a, 50b Ratchet pawl 51 Bolt 52 Coil spring 53 Bolt 54 Bearing 55 Eccentric shaft 56 Bearing 57 Coil spring 58 Detection hole 59 Pipe joint 60 Mounting hole 61 Hole 62, 63 Air nozzle 64 Hole 65, 66 Pipe joint 67 Mounting hole 68 Air Nozzle 69 shoot

Claims (6)

[Claims] 1. A means for detecting the front and back of a part to be conveyed, a ring-shaped table which stores the part with its front and back in a horizontal position and rotates intermittently, and one passage penetrating inside the ring of the table. And means for discharging the components housed in the table in the horizontal position, with the front and back aligned in one direction, and the ring-shaped table radially stores the components in the horizontal position one by one. A plurality of spaces penetrating the inner peripheral surface and the outer peripheral surface are provided, and a passage penetrating the inside of the ring of the table is formed so that a height position and a cross-sectional shape of a bottom surface thereof are adjusted to the space. The means for discharging the components stored in the front and back sides in one direction is such that the space storing the components corresponding to the signals of the front and back detection means is connected to both ends of a passage passing through the inside of the ring of the table. A component front and back aligning device configured to eject the component based on the signal when the robot arrives at one of two positions. 2. The method according to claim 1, wherein the two ring-shaped tables are arranged in parallel, and these tables rotate intermittently alternately, and a merging chute that merges with each other is connected to a component outlet of each of the tables. Parts front and back alignment device. 3. A means for intermittently rotating the two ring-shaped tables alternately includes an eccentric shaft attached to a continuously rotating rotary shaft, and a rotating shaft attached to the eccentric shaft via a bearing. Two ratchet pawls and two ratchet wheels mounted coaxially with the two ring-shaped tables, and the tips of the ratchet pawls face in opposite directions to be able to be pressed against the teeth of each ratchet wheel. The front and back part arrangement according to claim 2, wherein the ratchet wheels are formed and alternately intermittently rotated by the reciprocating motion of the two ratchet pawls, and the motion is transmitted to the two ring-shaped tables. apparatus. 4. The means for transmitting the intermittent rotational movement of each ratchet wheel to a ring-shaped table comprises a ball engaging each tooth of the ratchet wheel, and a spring pressing the ball against the tooth. 4. The component obverse and reverse aligning device according to claim 3, wherein the device is fixed to a rotating portion of each of the ring tables. 5. The ring-shaped table according to claim 1, wherein each space of the ring-shaped table is opened upward, and a lid is removably attached to an opening of each space without fastening parts. Parts front and back alignment device. 6. A torsion chute, which turns the part in the horizontal position by 90 degrees and aligns the surface of the part upward, is connected to a part discharge port of the ring-shaped table or an outlet of the merging chute. The component front and back aligning device according to any one of claims 1 to 5.