JPH06233972A - Cleaning device - Google Patents

Abstract

PURPOSE:To provide a cleaning device which is suited for continuous cleaning of a large quantity of small pieces. CONSTITUTION:This cleaning device is provided with a cylindrical part 1 composed of a porous sheet and, lath metal or wire netting with both ends opened, and a center shaft which is inclined from a horizontal surface and supported by a bearing 2 in rotatable manner, and pipes 7, 8, 9 for transferring a cleaning medium fixed in the cylindrical part. In a addition, each pipe has a nozzle facing downward for each cleaning area, and a hopper 10 for works to be cleaned is provided at a higher positional end of the cylindrical part with a storage container 11 for cleaned works provided at the other positional end.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning device suitable for continuously cleaning a large amount of small objects (workpieces).

[0002]

2. Description of the Related Art When cleaning a large amount of small objects, it is necessary to put a work to be cleaned in a cleaning basket or the like and put it in a cleaning device.
Alternatively, it is generally placed on a mesh-like moving belt and passed through the cleaning device. In addition, the container shape is made special so that the work to be cleaned will avalanche in the closed container, and a solid much smaller than the work to be cleaned is added to the container.
Not only simple cleaning but also barrel polishing cleaning, which enables deburring, is well known.

[0003]

When a large number of small works to be cleaned are put in the cleaning basket and cleaned, the cleaning work in the central portion of the space inside the car is difficult to be sufficiently cleaned. Further, when the work to be cleaned is continuously transferred from the previous process and at a remarkably short time interval, the switching procedure for putting the work to be cleaned into the next car becomes complicated.

On the other hand, in the system in which the work to be cleaned is placed on the reticulated moving belt and passed through the cleaning device, the cleaning medium acts from the outside of the reticulated belt, so that the portion of the work to be cleaned that is in contact with the reticulated net is cleaned. Hateful. Alternatively, the cleaning medium tends to adhere and remain. Further, there is a problem that the ultrasonic vibration added to enhance the cleaning effect and the forced flow of the cleaning medium are attenuated by the mesh. Further, since the work to be cleaned is cleaned while keeping almost the same posture, the work to be cleaned having the concave portion is likely to cause uneven cleaning and residual cleaning medium.

Next, barrel polishing cleaning can solve some of the problems described so far, but in batch processing in a closed container, a large amount of workpieces to be cleaned that are moved at short intervals are cleaned. However, and there are difficulties in automating it. Further rough cleaning, finish cleaning, rough rinse,
There is a problem that it is difficult to apply it when finishing rinse, draining and drying and washing in multiple steps.

[0006]

In order to solve the above-mentioned problems, the present invention supports a cylindrical body made of a perforated plate, lath metal or wire netting with its both ends rotatably supported by bearings with its central axis inclined from a horizontal plane. Then, the outer side of the tubular body in the radial direction is surrounded by a casing, and a pipe having a nozzle obliquely downward in the radial direction at the tip is fixedly arranged on the central axis of the tubular body, and the tubular body is rotated while rotating the tubular body. , The workpiece to be cleaned is put into the cylindrical body from the side end having a higher position, the cleaning medium is supplied to the pipe, and the cleaning medium is sprayed from the nozzle to clean the workpiece, and the cylinder of the workpiece. A cleaning device characterized in that the work is transferred to the lower position side of the cylindrical body by rolling and avalanche flow in the cylindrical body, and the cleaning work is discharged from the side end of the lower position side of the cylindrical body. That is what I got.

[0007]

Since the cylindrical body made of the perforated plate, the lath metal or the wire net rotates, if the size of the work to be cleaned is larger than the opening size of the perforated plate or the metal net, the work to be cleaned avalanches and flows in the cylindrical body. In this state, the cleaning medium is directly sprayed onto the workpiece to be cleaned (not through the perforated plate or the wire mesh), so that cleaning is performed if the cleaning medium contains detergent, and if the cleaning medium is water, rinse is performed. If the cleaning medium is gas, it is drained and dried.

Each cleaning medium is discharged into the casing through the openings of the perforated plate, lath metal or wire mesh,
It may be regenerated by a generally well-known method for recycling, or may be discarded. The work to be cleaned is composed of a longitudinal component of the tubular body due to gravity when the central axis of the rotating tubular body is not horizontal and a longitudinal component of the tubular body due to the fluid force when the cleaning medium is jetted obliquely downward. It moves in the tubular body toward the outlet side and is discharged from the tubular body, that is, the cleaning device.

The position and direction of the workpiece to be cleaned change every moment due to avalanche flow and movement in the lengthwise direction of the cylindrical body.
Even if the workpieces to be cleaned have concave portions or have a high density such as contact with each other, the entire surface is uniformly washed, drained and dried. That is, a large amount of small objects can be continuously and automatically cleaned even when the workpieces to be cleaned are supplied at extremely short intervals.

Further, although the workpiece to be cleaned is positioned in the lower half side of the cross section of the cylindrical body for a long time, the cleaning medium is directly sprayed to the area, not through the perforated plate, the lath metal or the metal net, so that the fluid force is exerted. Effectively acts to remove and move dirt. Further, since the workpieces to be cleaned come into contact with each other and the cylindrical body many times, they also have a deburring action.

[0011]

FIG. 1 shows an embodiment of the present invention. In this embodiment, the tubular body 1 is a cylinder made of a perforated plate, and the central axis of the cylinder is tilted from the horizontal direction, and as the cleaning medium, cleaning water in which a water-soluble detergent is dissolved, tap water for rinsing, draining and drying are used. 3 types of air are used for each nozzle 71, 81, 9
1 is directed downward in the radial direction of the tubular body 1, and a cleaning medium supply pipe is arranged at the center of the tubular body.

The tubular body 1 is open at both ends and has no hole 12 for assembling the bearing 2 and the rotating pulley 4 at both ends.
There is a trumpet-shaped portion 13 on the outlet side of the workpiece to be cleaned, and a drainage plate 14 for washing water and rinsing tap water, which also serves as a reinforcing ring, is integrated with the tubular body. The casing 3 supports the bearing 2, the leg 33, and the wash water outlet 3
4, a rinse tap water outlet 35, a blow air outlet 36, and a partition 31 between the cleaning media are attached. The nozzles 71, 81, 91 are respectively connected to the pipes 7, 8, 9 for supplying the cleaning medium, and the three pipes are fixed to the casing or the legs by the metal fittings 72, 92 fixed to each other.

Further, 6 is a motor fixed by a bracket 61, 5 is a drive belt, 10 is a loading hopper for the workpiece to be cleaned fixed by the bracket 101, and 11 is a container for storing the cleaned workpiece. While rotating the tubular body 1 with the motor 6, as shown by arrows A, B, and C, the pipes 7, 8, and 9 respectively.
Is supplied with wash water, rinse tap water, and air.

The workpiece to be cleaned introduced from the hopper 10 is moved to the area f side by avalanche flow and gravity while being cleaned by spraying cleaning water in the area e. The cleaning water enters the region k through the opening of the perforated plate, is discharged from the discharge port 34, is transferred to the cleaning water treatment device D including a pump, a filter, an oil remover, a temperature controller, and the like, and is reused. . Similarly, the area f is formed by rinsing tap water sent by the pipe 8.
The rinse tap water is discharged from the area l, the air sent from the pipe 9 drains the area g to dry the area, and part of the air is sucked or naturally discharged from the area m.

The cleaned work is dropped and stored in the storage container 11 via the trumpet-shaped portion 13. The tubular body 1 made of a perforated plate, lath metal or wire mesh is not limited to a cylinder and may have any shape of 4 to 10 polygons. The rinse area (corresponding to f in the figure) may be removed. Further, if the inclination of the central axis of the cleaning device with respect to the horizontal plane is not fixed and the inclination can be changed as needed, it can be adjusted according to the size and shape of the workpiece to be cleaned and the required cleaning degree (or cleaning time). Can be washed.

[0016]

EFFECTS OF THE INVENTION The cleaning apparatus of the present invention has the above-described structure, and since the workpieces to be cleaned are avalanche, the density of the workpieces becomes higher as they come into contact with each other or become clumped. Even if it is possible to perform uniform cleaning, a large amount of cleaning is possible, and even if the supply time interval between the workpieces to be cleaned is extremely short, it is possible to perform automatic cleaning without a special work transfer device.

Further, since the cleaning medium is directly sprayed not through the perforated plate, the lath metal or the wire mesh, and is intensively sprayed to the portion where the workpiece to be cleaned is located (the lower half of the cross section of the cylindrical body),
High cleaning efficiency. Further, it can be applied to a single-step washing with simple washing water to a multi-step washing such as washing, rinsing, draining and drying.

[Brief description of drawings]

FIG. 1 is a side sectional view of an embodiment of the present invention.

[Explanation of symbols]

 1 Cylindrical body made of perforated plate or wire net 2 Bearing 3 Casing 4 Pulley 5 Drive belt 6 Motor 7 Wash water supply pipe 8 Rinse tap water supply pipe 9 Air supply pipe 10 Hopper 11 Washed work container

Claims (8)

[Claims] 1. A cylindrical body made of a perforated plate, lath metal or wire mesh is supported by bearings at both ends so that the central axis is tilted from a horizontal plane and rotatably supported, and the radially outer side of the cylindrical body is surrounded by a casing. A pipe having nozzles directed obliquely downward in the radial direction is fixedly arranged on the central axis of the tubular body, and while rotating the tubular body, the workpiece to be cleaned is fed from the side end of the tubular body having a higher position to the tubular body. The work is cleaned by supplying the cleaning medium to the pipe, supplying the cleaning medium to the pipe, and spraying the cleaning medium from the nozzle, and rolling the work in the cylindrical body causes the work to move to the lower side of the cylindrical body. The cleaning device is characterized in that the cleaning work is discharged from the side end of the tubular body on the low position side. 2. A tubular body made of a perforated plate, lath metal or wire mesh is divided into at least three or more regions in the length direction,
At least three pipes each having a nozzle are fixedly arranged in the central portion of the tubular body in each region, and a cleaning liquid is supplied to a pipe having a nozzle in at least one region near the work inlet, The rinsing liquid is supplied to the pipe having the nozzle in at least one area of the portion, and the pressurized air or gas is supplied to the pipe having the nozzle in at least one area near the discharge port of the work. The cleaning device according to claim 1, wherein the cleaning device is a cleaning device. 3. A cleaning device according to claim 2, wherein the rinse area and the pipe for the rinse are removed. 4. Each of the nozzles is arranged obliquely forward from the center axis of the pipe, and the cylindrical body made of the perforated plate, lath metal or wire mesh and the tubular body pipe are arranged horizontally. The cleaning device according to any one of claims 2 and 3, which is characterized. 5. The cleaning apparatus according to claim 4, wherein the central axis of each of the pipes having the nozzles, the porous plate, the lath metal or the metal net is variable with respect to the horizontal plane. 6. The pipe having the nozzle is eccentrically arranged upward from a central axis of a tubular body made of a perforated plate, lath metal or wire mesh.
The cleaning device according to any one of to 4. 7. The cleaning apparatus according to claim 1, wherein the cylindrical body made of the perforated plate or the wire net is a cylinder. 8. The cleaning apparatus according to claim 1, wherein the cylindrical body made of the perforated plate, lath metal or wire mesh has a quadrilateral to decagonal shape.