JPS6331274B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cleaning device for a transparent plate of a color sorter.

This type of color sorter irradiates a bundle of different-colored particles flowing down from a gutter from a light source of a photoelectric detection unit, and a light receiving element receives the reflected or transmitted light, and detects the difference in light intensity. This device operates a spray nozzle based on the detection signal to scatter and sort out different colored particles.

The transparent plate attached to the front surface of the photoelectric sorting unit equipped with the light receiving element, light source, etc. is filled with dust adhering to the sorted particles in a diffused manner due to the blast action of the spray nozzle, and the transparent plate The transparent plate needs to be cleaned frequently because scattered dust sticks or adheres to the surface, reducing the amount of light emitted from the light source to the particles, and also reduces the light receiving sensitivity of the light receiving element, causing malfunctions in the sorting action. Conventionally, a window was provided in a part of the photoelectric sorting chamber, and cleaning was performed by inserting a hand through the window, and a cleaning plate was movably suspended from a guide rail installed horizontally on the upper part of the transparent plate. Since the cleaning plate is cleaned by moving a wire, if the former type of fenestration is provided, the photoelectric sorting chamber becomes large, requires a lot of materials, and has the disadvantages of high manufacturing costs. However, when suspending the cleaning board from the latter guide rail, the structure becomes complicated and the assembly and
This method requires a lot of effort to install, and it is difficult to install the device in which the opposing transparent plates are parallel to the inclination angle of the gutter.

In view of the above-mentioned drawbacks, the present invention provides a wiper body,
By mounting a cleaning tool frame with an integrated wiper operating mechanism etc. inside the photoelectric sorting chamber, the wiper bodies that are linked to each other slide on the opposite transparent plate surfaces to remove adhering dust, etc. To provide a cleaning device for a transparent plate of a color sorting machine that completely removes the transparent plate, automates the cleaning work of the transparent plate, and has a structure in which constituent members of the cleaning device do not interfere with sorting operation.

The present invention will be explained with reference to embodiment figures. Figure 1,
In FIG. 2, reference numeral 1 denotes a sorting gutter tube that houses a downflow gutter 2 inside, a photoelectric sorting chamber 3 is provided in the lower half of the gutter tube, and a grain feeding device 4 is provided at the upper end of the gutter tube 1.
In addition, a control box 6 containing a control device 5, a heating device, etc. is connected and fixed to the center of the bottom wall of the gutter tube 1, and the box 6 is fixed to a support 7 to form an integral structure. This is a color sorting machine installed.

The grain feeding device 4 has a supply hopper 9 mounted on the upper half of the box frame 8, and a vibrating grain feeding gutter 11 equipped with a vibrating device 10 at the lower part thereof.
Photoelectric detection openings 12, 12 are provided in the cylindrical wall of the cylindrical wall to face the falling trajectory A of the grains flowing out from the downflow gutter 2, and a light source 15 and a light receiving device are installed inside the machine frame 14, which has a transparent plate 13 on the front side. A photoelectric detection section 18 in which an element 16 and a reference color plate 17 are arranged in relation to each other is formed, and the photoelectric detection section 18 is removably attached to the opening 12. In addition to providing a nozzle device 19, a grain collecting pipe 0 communicating with the flow trajectory A is provided at the lower end of the gutter pipe 1, and a different color grain discharge port 21 is provided on the side thereof, and 22 is a scattering particle prevention wall. .

Next, in the transparent plate cleaning device of the present invention, the wiper bodies 23 and 23 are attached to the transparent plates 13 and 13 of the photoelectric detection units 18 and 18 provided oppositely (see FIG. 3).
are slidably provided and both wiper bodies 23, 23 are integrally connected by a connecting rod 24, and a cleaning tool machine frame 25 is installed horizontally on the upper side of the transparent plate 13 on one side thereof. A rotary support rod 27 which is fixedly installed and connected to a rotating device 26 is rotatably attached to the machine frame 25, and a fulcrum shaft 8 provided at an upwardly extending portion 25' of the machine frame 25
The upper end portion of a rotating rod 29 bent in a dogleg shape is rotatably attached to the upper portion 29A and the lower portion 9B, and both wiper bodies 23, 23 are attached to the lower end portion of the rotating rod 29.
The connecting rod 24 is fixed, and the bent portion of the rotating rod 29 and the rod end of the rotating support rod 27 are connected by a connecting rod 30. The wiper body 23 supports a wiper plate made of rubber or a brush that slides on the surface of the transparent plate 13 made of a glass plate.
3A and is integrally formed.

With the above-mentioned configuration, particles mixed with different color grains of the raw material flowing down from the supply hopper 9 to the vibrating grain feeder 11 are transferred to the lower flow gutter 2 by the vibration action of the vibration device 10.
The liquid flows down and flows out inside the photoelectric sorting chamber 3 in a flight shape along a predetermined flow trajectory A. Inside the sorting room 3,
The light-receiving element 16 receives the transmitted or reflected light beam from the different-color particles and generates a signal, and the detection signal activates the spray nozzle device 19 to spray air at a timely time. Due to the blast action, the different colored particles are separated from the flow path A, the separated particles flow down from the different color particle outlet 21 and are removed, and the regular particles flowing out along the flow path A are left as they are in the grain collection tube. 20 and taken out of the machine for the next process. When cleaning the dust adhering to the transparent plate 13 of the photoelectric detection unit 18, when the rotating device 26 is operated for an arbitrary predetermined time, the rotating support rod 27 provided on the machine frame 25 rotates. The support rod 27 reciprocates the connecting rod 24 provided at the lower end of the rotating rod 29 via the connecting rod 30, and both wiper bodies 23, 23 provided at both ends of the connecting rod 24 move back and forth. The transparent plates 13 and 13 surfaces are slid and reciprocated to completely clean the adhered dust.

At this time, since the rotation center of the rotation rod 29 is the fulcrum shaft 28 provided on the upwardly extending portion 25' of the cleaning implement frame 25, the distance to the connecting rod to which the wiper body 23 is attached is large. The wiper body 25 moves largely within a small rotation range of the rod 29 and cleans a wide area. In addition, since the rotating rod 29 is bent in a dogleg shape, the rotating device 2 disposed at the center of the gutter tube 1 in the width direction
At 6, the lower part 29B of the rotating rod 29 is moved to the side of the transparent plate 13.

Claim 2 provides that the rotating device includes a rotating electric motor 31 mounted on the cleaning tool machine frame.
Therefore, all of the cleaning equipment is integrally mounted on the machine frame, and the assembly, repair, attachment and detachment work, etc. thereof can be easily and easily carried out.

According to the third aspect of the present invention, since the rotation device is formed to stop rotation in response to a detection signal from a position detection sensor 32 that detects the position of the wiper body, each wiper body is always stopped at a predetermined position on one side of the plate surface, for example, on the side where the lower part 29B of the rotating rod 29 is removed from the transparent plate 13, so that the sorting action can be performed without interfering with the photoelectric sorting action. This has the effect of smoothing the start and improving work efficiency.

According to claim 4, the rotating device is configured to rotate intermittently during an arbitrary pause time set in the timer 33.
For example, if the downtime is 30 minutes, the rotating device turns on every 30 minutes and makes one rotation of the rotating support rod, so that dust, etc. adhering to each transparent wall surface is cleaned in a timely manner, and high-precision color sorting is always performed. This method can be carried out continuously and has the effect of automating the cleaning work of the transparent plate.

The installation location of the position detection sensor is as follows:
Of course, the detection position of the wiper body or the rotation support rod is not limited to the illustrated detection position, and the wiper body or the rotation support rod can be appropriately selected and mounted.

The cleaning device for a transparent plate of a color sorter according to the present invention exhibits the following effects.

The wiper body can clean a wide area with a slight rotation of the rotary body, making the device more compact. Further, since the rotating device is mounted on the cleaning tool frame, the cleaning device has good balance.

When the wiper body is stopped, the mechanism for driving the wiper body (such as a rotating rod) can be retracted to the side of the transparent plate.

As a result of the above, highly accurate color sorting operation can be carried out stably and continuously at all times.

[Brief explanation of the drawing]

The drawings are illustrations of embodiments of the present invention. FIG. 1 is a partially cutaway side view of the color sorting machine, FIG. 2 is a sectional view of its photoelectric sorting chamber, and FIG. 3 is a perspective view of its cleaning device. DESCRIPTION OF SYMBOLS 1... Sorting gutter tube, 2... Downflow gutter, 3... Photoelectric sorting room, 4... Grain feeding device, 5... Control device, 6...
...control box, 7...post, 8...box frame, 9...
... Supply hopper, 10 ... Vibration device, 11 ... Vibrating grain feeder, 12 ... Photoelectric detection opening, 13 ...
Transparent plate, 14...Machine frame, 15...Light source, 16...
Light receiving element, 17... Reference color plate, 18... Photoelectric detection unit, 19... Injection nozzle device, 20... Grain collection tube,
21...Unusual particle discharge port, 22...Scattered particle prevention plate, 23...Wiper body, 23A...Support, 2
4... Continuous rod, 25... Machine frame for cleaning tool, 26... Rotating device, 27... Rotating support rod, 28... Fulcrum shaft, 2
9... Rotating rod, 30... Connecting rod, 31... Rotating electric motor, 32... Position detection sensor, 33... Timer.

Claims (1)

[Scope of Claims] 1. A wiper body is slidably provided on both transparent plates of the photoelectric detection unit provided oppositely, and both wiper bodies are integrally connected by a connecting rod, and the side of the transparent plate A machine frame for a cleaning tool is hung horizontally on one side, and a rotary support rod is rotatably attached to a rotating device attached to the machine frame, and
One end of a rotating rod bent in a dogleg shape is rotatably attached to a fulcrum shaft provided on the machine frame on the side of the rotating device, and the connecting rod is attached to the other end of the rotating rod. At the same time, the rotating rod and the rod end of the rotating support rod are connected by a connecting rod, so that the entire rotating rod retracts to the side of the transparent plate when the wiper body is stopped. A cleaning device for a transparent plate of a color sorter, characterized by: 2. The cleaning device for a transparent plate of a color sorting machine according to claim 1, wherein the rotating device is a rotating electric motor mounted on the cleaning tool frame. 3. The color sorting device according to claim 1 or 2, wherein the rotating device is configured to stop rotating in response to a detection signal from a position detection sensor that detects the full-out position of the wiper body. Cleaning device for the machine's transparent plate. 4. The cleaning device for a transparent plate of a color sorting machine according to claim 1, wherein the rotating device is configured to rotate intermittently during an arbitrary pause time set on a timer.