JPH05287B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sorting device that separates, aligns, and transports components having recesses such as impellers that are likely to get entangled with each other.

``Prior art'' In conventional parts sorting devices, parts are transferred using a spiral feed path, and the parts are separated and sorted based on the difference in weight of the parts and an air jet, but they tend to get entangled with each other. Complex-shaped parts with such recesses become intertwined and difficult to align during transportation in a spiral feed path. When attempting to separate the parts using an air blowing jet or the like, since the parts in the alignment direction and in the other direction are entangled, both are removed from the spiral feed path, resulting in a reduction in transfer performance. For example, the conventional Utsukai Showa 55-167920
The component feeding device according to the above method uses a detector to check the length of the tangled components and returns them to the bowl using an air nozzle, so there is a problem in that the transfer performance is low.

Previous Utility Application No. 171195 (1983)
The parts sorting device described in the micro film of No.
a component storage container 14 that is vibrated to accommodate the ring-shaped components and transfer the ring-shaped components; and a release gate 1 that is provided in the ring-shaped component movement path 16 in the component storage container and separates the ring-shaped components w entangled with each other.
7, an air blow gate 19 that is provided in the middle of the component alignment and transfer track 16 formed in the component storage container 14 and corrects the ring-shaped component w moving on the track to a predetermined posture; and a terminal end on the track. A ring-shaped part installed on the side and in a predetermined posture w
This is merely a parts sorting device that is equipped with a full-form dropping gate 20 provided with a protrusion 21a to take out the parts outside the parts storage container 14. Since the shaped track 16 is not provided with a steep slope 32 at the front end, a large number of entangled and/or overlapping parts w that have not been released by the entangling release gate 17 pass through the track 16 and are finally disassembled. Bowl 1 is blocked from passing through at the entrance of drop gate 20.
There is a drawback that the transfer capacity is extremely low because many of the particles fall at the bottom of the container.

Further, the invention described in Japanese Patent Application Laid-Open No. 58-125519 generates component force A of component force A and component force B that are perpendicular to each other by a plurality of magnetic pieces 22 arranged in cooperation with the conveyor 18, Component force B is conveyor 18,1
9, the two magnetic pieces 22,
Parts magnetically attracted over 22 hours (Blank 1)
This is just a device for sorting by blowing it away with air, and since the device uses conveyors 18 and 19, it has the disadvantage that the overall length of the device is long.
In addition, the invention described in Japanese Utility Model Publication No. 58-3770 is a parts feeder in which a plurality of air outlets 4 whose outlet side is slightly wider than the suction side and air escape is formed are arranged diagonally with respect to the track surface. The installed inclined plate 6 is attached to the pole side wall 8 so as to be able to slide up and down to accommodate various parts and adjust as appropriate. The air nozzle 9 is only a special part 1 in which the depths of the grooves A and B are different on the front and back sides. The disadvantage is that it is not possible to distinguish between the front and back sides. Moreover, the air nozzle 9 only performs front-back separation, and cannot separate entangled or overlapping parts, which is very inconvenient and has the drawback of low transfer capacity.

"Problems to be Solved by the Invention" The present invention has been made to solve the above problems, and is small in size, has high transfer ability, and can separate entangled and overlapping parts. The purpose of the present invention is to provide an easy-to-use sorting device.

"Means for Solving the Problems" For the above purpose, according to the present invention, there is provided a parts feeder vibration source 1 for generating rotary vibration using an electromagnetic vibrator, and an upper part of the parts feeder vibration source 1. A component having a rotating vibrating bowl 2 for transferring a component 9 fed to a conical bottom surface to the upper part via a cylindrical middle part by being fixed and being pivotally vibrated by the vibration source. In the feeding device, a first spiral feeding path and a second spiral feeding path are provided inside the cylindrical intermediate portion of the bowl 2 so as to form a spiral shape with a gentle upward slope as a whole, and
A falling portion 31 is provided between the first spiral feeding path and a second spiral feeding path, and after the falling portion 31, the second spiral feeding path has a steeply ascending slope 32 at the front end. A suction drum 4 is provided on the outer periphery of the rotary vibrating bowl 2 so as to be rotatable by a drive source 6, and the parts 9 in the alignment direction are separated and advanced onto the second spiral feed path. A suction drum 4 is provided with a magnet 5 for intermittently suctioning parts 9 at predetermined intervals, and a take-out passage is installed at the end of the second spiral passage and is provided with an inlet and a baffle plate 81. Take-out route 8
and an air blowing jet 12 provided through the upper wall of the rotary vibrating bowl 2 to avoid interference with the suction drum 4 immediately before the take-out feeding path 8. be done.

"Function" According to the above configuration of the present invention, the entangled parts 9 are separated by dropping the parts 9 from the first spiral feeding path onto the falling component 31, and the components 9 are immediately dropped from the first spiral feeding path. The parts 9 are intermittently attracted by the magnets 5 arranged at predetermined intervals and are transported up the steep slope 32 at the front end of the second spiral feed path, thereby preventing continuous entanglement of the parts 9. Separated into blocks. In addition, parts 9 of the same shape and weight that are difficult to align due to differences in shape or weight.
is sent along the second spiral feed path by utilizing the difference in the attraction force of the magnet 5 due to the difference in distance from the inner wall of the bowl 2. Further, in the present invention, the suction drum 4 is rotatably provided on the outer periphery of the rotary vibrating bowl 2, and the magnets 5 are arranged on the suction drum 4 at predetermined intervals. The component 9 on the spiral conveyance path can be attracted from the outside of the bowl 2 by the magnetic force of the magnet 5 and moved onto the second spiral conveyance path. In addition, by utilizing the fact that the adsorption force of the magnet 5 differs depending on the adsorption posture of the parts 9, the air blowing jet 12 separates items that are not in the alignment direction and items that are overlapping each other, and furthermore, the inlet and baffle plate of the take-out and delivery path 8 are used. 81, the parts 9 only in the feeding direction are taken out. The air blowing jet 12 is provided just before the take-out feed path 8, and is also provided through the upper wall of the rotating vibrating bowl 2 to avoid interference with the suction drum 4, so that the stationary air blowing jet 12 and the rotating suction The functions of both drums 4 and 4 can be fully demonstrated without causing interference with each other.

"Example" Next, embodiments of the present invention will be described with reference to the drawings.

In FIGS. 1 to 3, reference numeral 1 denotes a parts feeder vibration source for generating rotational vibration, and a commercially available electromagnetic vibrator is used (FIG. 2). The rotating vibration bowl 2 is bolted to the upper part of the parts feeder vibration source 1, and has a conical shape at the bottom and a cylindrical outer circumference, and has a falling part 31 in the middle inside as shown in FIG. A spiral feed path 3 having a steeply sloped surface 32 continuing to the falling portion is spirally formed from the bottom to the upper take-out feed path 8.
The width of the spiral feeding path 3 is the same as the width of the parts 9 in the feeding direction. The component 9 is an impeller in this embodiment (FIG. 1). The spiral feed path 3 is welded to the rotating vibrating bowl 2, and both are made of stainless steel. The slope angle of the spiral feed path 3 is preferably 3 degrees, and the steeply sloped surface 3
1 is 25° in this embodiment. The suction drum 4 is located outside the rotary vibrating bowl 2, and the height of the suction drum 4 is from the bottom of the rotary vibrating bowl 2 to the bottom of the take-out passage 8, and a driven chain (not shown) is provided outside the lower part. The material is cold rolled steel. The magnet 5 has approximately the same height as the suction drum 4, and is fixed to the inner peripheral surface of the suction drum 4 with an adhesive. The spacing between the magnets 5 is approximately twice or more the size of the component 9 in the spiral feed path 3. The magnetic force generated by the magnet 5 is such that the parts 9 in the alignment direction do not fall from the second spiral feed path during transportation. The drive motor 6 and rollers 7a, 7b are connected to each stay 11 attached to the base plate 10.
is fixed. The drive motor 6 has a sprocket 61 on its shaft, and the sprocket 61 meshes with the chain of the suction drum 4. Note that the suction drum 4 can also be rotated by the vibration force from the parts feeder vibration source 1. but,
In terms of stabilizing the supply capacity and reducing noise, it is preferable to provide a separate rotary drive device as in this embodiment. The rollers 7a and 7b are in contact with the suction drum 4, with the roller 7a receiving the suction drum 4 in the horizontal direction and the roller 7b receiving the suction drum 4 in the vertical direction. roller 7a,
The material of both rollers 7b is carbon steel for mechanical structures, and the surface of the roller 7b is baked with urethane rubber having a hardness of 80°. An air blowing jet 12 is provided on the rotating vibrating bowl 2 immediately before the take-out and feeding path 8 to avoid interference with the suction drum 4.

"Operation" The parts 9 placed in the rotating vibrating bowl 2 gather on the outside of the rotating vibrating bowl 2 along the cone on the bottom due to the electromagnetic rotating vibration of the parts feeder vibration source 1. The rotating vibrating bowl 2 has a spiral feed path 3 on the outer part 9.
It climbs along the first spiral feed path and falls at a falling portion 31 provided at the end of the first spiral feed path.
At this time, the component 9 is attached to the magnet 5 of the suction drum 4.
It is attracted to the side wall of the rotating vibrating bowl 2 by the magnetic force. Then, the component 9 attracted by the magnetic force of the magnet 5 climbs the steep slope 32 at the front end of the second spiral feed path and reaches the second spiral feed path. The component 9 in a bad posture and the component 9 between the magnets 5 are not attracted due to the difference in attraction force and return to the original bottom surface of the rotating vibrating bowl 2. The component 9 attracted by the magnetic force of the magnet 5 further ascends the second spiral feed path in the feed path 3 due to the rotational vibration of the rotating vibrating bowl 2 and the magnetic force of the magnet 5. The spacing between the parts 9 at this time is the same as the arrangement spacing of the magnets 5, and the parts without the magnets 5 are not attracted, resulting in a blank state, and the intertwined parts 9 are separated into small blocks. The parts 9 separated into each block are those in the feeding direction and those in the other direction.
Alternatively, in order to separate two and three overlapping objects, the air-blown jet 1 is applied by utilizing the fact that the adsorption force of the magnet 5 differs depending on the adsorption posture of the part 9.
2, and further separated into parts 9 only in the feeding direction by the entrance and baffle plate 81 of the take-out and feeding path 8.
Each separated component 9 is transferred via a take-out path 8. In the take-out path 8, the parts 9 move away from the magnet 5, so that they are no longer subjected to the magnetic force of the magnet 5, and are ejected by the rotational vibration of the parts feeder vibration source 1. The rotation of the suction drum 4 is determined by the speed of the drive motor 6, and in this embodiment, the rotation speed of the suction drum 4 is 10.5 m/min.
Also, in order to center the rotary vibrating bowl 2 and the suction drum 4, the horizontal roller 7a is used, and in the same way, the vertical roller 7b is used to receive the weight of the rotary vibrating bowl 2. are doing. These rollers 7a and 7b are one set, and three or four sets are used to assist in rotation.

"Effect" As described above, according to the device of the present invention, the rotating vibration bowl 2 with the parts feeder vibration source 1 and the suction drum 4 with the magnet 5 initially reduce the rotational vibration of the parts feeder vibration source 1. The parts 9 are transferred by the bowl 2, and in the middle, the parts 9 that have fallen from the first spiral feeding path are intermittently attracted by the magnetic force of the magnet 5 by the suction drum 4, and the vibrations of the suction drum 4 and rotational vibrations are generated. By adopting a structure in which the parts are transferred powerfully by the bowl 2, and finally transferred again by the rotary vibration bowl 2 with the parts feeder vibration source 1, the magnet 5 in the middle is
By intermittent suction of parts 9, continuous parts 9
It is possible to separate the entanglements into small blocks, and the separation can be reliably performed.Therefore, there is an excellent effect that a small-sized transfer device with high transfer capacity can be provided. Further, according to the device of the present invention, by providing the steeply inclined surface 32 at the front end of the second spiral feed path, entanglement and overlapping of the parts 9 can be reduced at an early stage, and the suction drum 4 can be rotated and vibrated. Since it is arranged around the outer periphery of the bowl 2, the magnet 5 provided on the suction drum 4
Both the magnetic force caused by the rotary vibration bowl 2 and the transfer force caused by the second spiral feed path of the rotating vibrating bowl 2 can be applied to the component 9,
Furthermore, by providing the inlet and baffle plate 81 in the take-out passage 8, entangled parts can be separated at the entrance of the take-out passage 8, so the device is made compact, and the air-blown jet 12 can be taken out. Road 8
By providing the rotating vibration bowl 2 immediately before the air blowing jet 12, there are excellent effects such as being able to avoid interference between the air blowing jet 12 and the suction drum 4.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of the apparatus of the present invention, FIG. 2 is a cross-sectional view, and FIG. 3 is an exploded view showing a state in which the take-out feed path and the spiral feed path inside the rotary vibrating bowl are connected. DESCRIPTION OF SYMBOLS 1... Parts feeder vibration source, 2... Rotating vibration bowl, 3... Spiral feed path, 31... Falling part, 32... Steep slope, 4... Adsorption drum, 5... Magnet, 6... Drive motor (drive source), 8... Take-out passage, 81... Inlet and baffle plate, 9... Parts, 12... Air blow jet.

Claims (1)

[Scope of Claims] 1. A parts feeder vibration source for generating rotary vibration using an electromagnetic vibrator, and a conical part fixed to the upper part of the parts feeder vibration source and rotated by the vibration source. In a parts conveying device having a rotating vibrating bowl for transferring parts fed to the bottom of the bowl to the upper part via a cylindrical intermediate part, the entire part is gently disposed inside the cylindrical intermediate part of the bowl. A first spiral feed path and a second spiral feed path are provided so as to form a spiral shape with an upward slope, and a falling portion is provided between the first spiral feed path and the second spiral feed path, and After the falling part, the second spiral feed path is provided with a steep slope at the front end thereof, and a suction drum is provided on the outer periphery of the rotary vibration bowl so as to be rotatable by a drive source. a suction drum provided with magnets to intermittently attract parts at predetermined intervals so as to separate and advance the parts in the alignment direction onto the second spiral transport path; and at the end of the second spiral transport path. An air-blowing jet installed through the upper wall of the rotary vibrating bowl to avoid interference with the suction drum immediately before the ejecting and feeding path, which is equipped with an inlet and a baffle plate. A parts sorting device comprising: .