JPH05331671A - Washing device for work - Google Patents

Abstract

PURPOSE:To provide the washing device for work which can efficiently remove fat and oil components without adversely affecting adjacent implements, apparatus and operators while minimizing a floor area and operators. CONSTITUTION:This device has a line 1 which is formed to a U shape in plane view having both ends in proximity to each other and transports works B stuck with the fat and oil components and a washing water spouting device 2 which isolates a curved part 1' for changing direction in the line 1 with a housing 12 from the outside and continuously spouts washing water toward the works B on the curved part 1' at the time of the passage in the housing 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work cleaning device for cleaning components (work) disassembled during maintenance and overhaul of machinery, vehicles, etc. to remove oil and fat adhered thereto. ..

[0002]

2. Description of the Related Art Conventionally, parts such as bearings for axles, which are often used in vehicles, to which a large amount of oil and fat have adhered, have been installed in a yard for maintenance and overhaul. While individually transporting it, they rely on so-called human naval tactics to remove oils and fats by artificially spraying high-pressure water.

[0003]

In such a man-in-the-water tactic, not only the labor cost increases because it is necessary to secure a transfer line and a space beside the transfer line in which workers are juxtaposed, but also an occupied space is required. Is unnecessarily widened, and the cleaning water containing the scattered oil and fat is contaminated not only by the worker but also by the adjacent equipment and facilities, which adversely affects environmental hygiene.
It causes various problems.

The present invention has been made in view of the conventional circumstances, and the object thereof is to keep the worker and the installation space to the minimum necessary limit, while keeping the equipment, equipments and workers next to each other environmentally friendly. An object of the present invention is to provide a work cleaning device capable of removing oil and fat without adversely affecting the above.

[0005]

The technical means taken to achieve the above-mentioned object are a line for transferring a work to which oil and fat are adhered, the line being formed in a U-shape in plan view with both ends approaching each other. A cleaning water spouting device is provided that isolates a curved portion that changes direction in the line from the outside with a housing and continuously spouts cleaning water toward a workpiece on the curved portion when passing through the housing. To do. Further, it is effective that the line is composed of a chain conveyor composed of a group of a large number of parallel chains. In addition, the washing water jetting device controls continuous jetting by turning the switch ON and 0FF, operates in synchronism with the operation of the line, and further, the sensor means provided near the inlet of the housing For example, it is automatically controlled through a control unit so that when the approach is detected, it continues to operate automatically, and when it is no longer sensed by the sensor means for a predetermined time or longer, the operation is stopped.

[0006]

According to the above technical means, there are the following actions. (Claim 1) An operator located between both ends of the line places the work to be cleaned on the inlet end of the line,
The oil and fat are forcibly removed by the washing water ejected in the housing, and returned to the same operator's hand from the exit end of the line. (Claim 2) A work to be conveyed on a curved portion of a line,
The inner and outer chains are made to rotate by the difference in peripheral speed, whereby the cleaning water is spouted evenly over the entire work.

[0007]

As described above, according to the present invention, the housing is provided with a line which is formed in a U-shape in a plan view with both ends approaching each other and which conveys a work to which oil and fat is attached, and a curved portion which changes the direction in the line. And a cleaning water spraying device that continuously sprays cleaning water toward the workpiece on the curved portion when passing through the housing, and prevents the scattering of cleaning water containing oil and fat to the outside. In addition, the U-shaped line configuration in plan view allows the work to return to the hand of the operator who holds the work at one end of the line for cleaning. And the installation space can be used to effectively clean the work, and the workers and adjacent equipment and facilities are sprayed with water (cleaning water containing oil and fat).
It is possible to provide a work cleaning device that is excellent in environmental hygiene and is not contaminated by.

Further, according to the second aspect, as a result of eliminating the jetting blind spot of the washing water on the work, the efficiency of washing off the oil and fat is further improved.

[0009]

Embodiments of the present invention will now be described with reference to the drawings. FIGS. 1 to 8 show a cleaning device for a work of this embodiment. Reference numeral A is a cleaning device, B is a work, 1 is a line, 2 is a cleaning water jetting device, and 12 is an intermediate part of the line from the outside. A housing, 11 is a chain conveyor constituting a line, 3 is a water receiver for cleaning drainage, 4 is a water receiving tank for cleaning drainage, and 5 is a portion for removing fats and oils.

The line 1 spans a large number of chains 21 over the driven shafts 1a, 1a which support a large number of driven sprockets at both ends so as to form a U-shape in a plan view, and one driven shaft. 1a is associated with the drive motor 1b and is viewed in plan view U
A chain that constitutes the bending portion 1'which is a letter-shaped direction changing portion.
21 ... A chain conveyor 11 formed so that each chain 21 ... rotates in one direction while maintaining a curved shape by stably supporting a portion with a slide guide 31 that gradually increases the curvature from the inside. Conveyor machine stand that looks like a U
Supported above 41. In this embodiment, a free roller conveyor 51 is connected to the downstream end as shown in the figure. Reference numeral 61 is a tension device, which has a function of varying the tension of the chain conveyor. FIG. 6 shows the slide guide 31 portion, and the curved portions 21a ... Of the chains 21 ...
The outer surface of the curved vertical plate 31a having the arm pieces 31b protruding from the inner side surface, which are in contact with the upper surfaces of the protruding pieces 21b protruding horizontally from the outer surface of each chain 21 at appropriate intervals. Is formed by fixing rails 31c that support adjacent chains 21, and the slide guides 31 are arranged between the curved portions 21a of the chains 21 ... It is possible to rotate in a stable state while keeping the shape.

The washing water jetting device 2 is a housing for isolating a curved portion 1'which is a direction changing portion of the line 1 from the outside.
12 and a cleaning mechanism 22 for spraying cleaning water onto the work B conveyed in the housing 12.

The housing 12 is formed in the shape of a hollow box having a curved portion 1'covered therein so as not to hinder the conveyance of the work B on the line 1, and the inlet 12a of the line 1 is formed.
And an outlet 12b are opened at both ends, and the inlet 12a and the outlet 12 are provided.
In b, a fin-shaped curtain 12c formed of a material having high flexibility and flexibility such as rubber is hung so that the inside of the curtain 12c is isolated from the outside by the scattering prevention effect of the curtain 12c. Yes (Figs. 4 and 5).

The cleaning mechanism 22 uses low-pressure water or high-pressure water, and as shown in FIG. 4, jets low-pressure water (high-temperature hot water) in opposition to both upper and lower positions that divide the housing 12 into six equal parts. High-pressure cleaning pipes 32a, 32a for ejecting high-pressure water (high-temperature hot water) and a large number of low-pressure cleaning pipes 32a, 32a for ejecting high-pressure water (high-temperature hot water). The pipes 42a, 42a are alternately arranged, and the low pressure type washing pipes 32a, 32a and the high pressure type washing pipes 42a, 42a are respectively placed in the water receiving tank 4 via the low pressure water pump 32c and the high pressure water pump 42c. The cleaning drainage collected in the water receiving tank 4 can be pumped up by contacting.

The chain conveyor 11 is for the inner and outer chains 2
The work B conveyed is configured to rotate due to the difference in peripheral speed between 1 and 21 (the peripheral speed of the outer chain is large), thereby eliminating the blind spot where the cleaning water is not jetted, and the work B The entire area can be washed evenly.

The low-pressure water and high-pressure water jetted toward the work B by the cleaning mechanism 22 are crushed into mist by the impact of collision with the work B and the chain 21, but as described above, the fin-shaped curtain 12c. It is prevented from scattering to the outside, and is sucked by the mist collector 52 communicating with the inside. Reference numeral 52a is the suction tube.

The cleaning water ejected from the cleaning mechanism 22 is
After receiving water as washing drainage in the water receiving tank 4 through the water receiver 3 and being heated, and after removing oil and fats and the like in an excluding portion 5 provided in the water receiving tank 4 for purification, low-pressure water Low-pressure washing pipe 32a, high-pressure washing pipe from the receiving tank 4 via the pump 32c, high-pressure water pump 42c
Water is supplied to 42a.

The water receiver 3 has a bottom surface of the housing 12 having a downward slope toward the central portion, and has a falling port 3a opened at the lowermost portion thereof to wash and drain the washing oil and dust mixed therein. Is drained to the water receiving tank 4 disposed further below.

As shown in FIG. 7 and FIG. 8, the water receiving tank 4 is in the shape of a horizontal box which communicates with the drop port 3a of the water receiver 3 and has a communication port 4a opened on the upper surface. A flowing water generating means 15 for compressing the stored water in a desired range including it, and an intermediate partition wall 25 for guide that circulates the stored water that is erected in the water receiving tank 4 and is moved by the flowing water generating means 15 in the receiving water tank 4.
Further, there is provided an oil / fat removing section 5 comprising an oil / fat collecting means 45 and a dust filtering means 55 arranged in the circulation flow path 35 partitioned by the intermediate partition wall 25.

As shown in FIG. 7, the intermediate partition wall 25 is composed of a main wall 25a having an inverted L shape in a plan view and a horizontal wall 25a-2 half of a vertical wall 25a-1. And a desired range including immediately below the drop port 3a is located in front of the outer half of the horizontal wall 25a-2 and the free end of the horizontal wall 25a-2 and the water receiving tank are formed. The vertical wall 25a-1 free end (lower end of the slanted wall 25b) and the lower wall 4c of the vertical wall 25a-1 and the lower wall 4c of the vertical wall 25a-1 are vertically arranged. , The horizontal wall 25a-2, the vertical wall 25a-1 and the horizontal wall 25a-2, which communicates with the circulation path 35a secured between the surface of the water receiving tank 4 and the left side wall 4b of the water receiving tank 4 A circulation return path 35b is formed between the rear surface of the wall 25a-1 and the right side wall 4d of the water receiving tank 4 and the upper side wall 4e of the water receiving tank 4 to form a circulation return path 35b. Luo both road 35a, and a circulation flow path 35 at 35b. In the present embodiment, as shown in FIG. 7, the lower wall 4c of the water receiving tank 4 is provided with the inclined wall 25b, the outlet 35c in a hopper shape in plan view, the circulation passage 35a and the circulation return passage.
A guide wall 4f formed at the boundary with 35b is provided in a protruding manner.

The flowing water generating means 15 uses air pressure and is connected to an air tank 15a containing compressed air or a compressed air generator (air compressor) and has blow nozzles 15c ... As shown in the drawing, a large number of air supply pipes 15b are provided in the vicinity of the surface area of the cleaning drainage collected at the position along the left side wall 4b of the water receiving tank 4 and at the position close to the outlet 35c. , The intermediate partition wall 25 while exerting air pressure from the lateral direction on the cleaning wastewater that falls from the drop opening 3a into the water receiving tank
In particular, the stored water can be pressed toward the outlet 35c by the guiding action of the slanted wall 25b.

The fat and oil recovery means 45 has one end having the outlet 35.
Wire conveyor belt 45a immersed in the water storage area of c
And a recovery container 45b provided below the other end of the wire conveyor belt 45a, and an outlet 35c for collecting oil and fat components (grease or the like) which is pressed by the flowing water generating means 45a.
The part is effectively scraped up and collected in a collecting container 45b adjacent to the water receiving tank 4.

In the filtering means 55, filter nets 55a are arranged side by side in the middle of the circulation return path 35b so as to be able to be inserted and removed at intervals of several layers, and the oil and fat collecting means 45 circulates without being collected and sinks. It is designed to filter dust.

Reference numeral 6 is a heating means of the collected cleaning waste water, and a predetermined steam source (not shown) so that high temperature steam can be jetted into the water receiving tank 4 to raise the temperature of the stored water to a predetermined temperature. , And a pipe 6a having a large number of ejection nozzles 6b at its tip is immersed in the stored water.

In the work cleaning apparatus of the present embodiment, a work detection sensor (not shown) is arranged at a portion of the housing 12a surrounding the inlet 12b or a portion adjacent thereto, and the work detection sensor (see FIG. (Not shown)
Continues to operate as long as it senses the work B entering the housing 12, and the work detection sensor (not shown) does not spray the washing water only when the work sensing sensor (not shown) does not sense the work. It is controlled by a control unit (not shown). Further, the flowing water generating means 15 and the collecting means 45 are
The heating unit 6 is controlled by a control unit (not shown) so as to operate in synchronization with the cleaning water jetting device 2, and the heating unit 6 is predetermined based on the detection by a temperature detection sensor (not shown) provided in the water receiving tank 4. It is linked to the same control unit (not shown) so that the heated steam is automatically supplied continuously until the temperature is reached. Reference numeral 7 is an inspection lid, and 8 is an operation panel.

Next, the operation of the work cleaning device of this embodiment will be briefly described. Chain conveyor with U-shape in plan view
When a worker (not shown) stands between both ends of 11 and the work B to be cleaned is placed on one end on the inlet 12a side,
The work B is conveyed into the housing 12. housing
When the 12 work detection sensors (not shown) detect the conveyed work B, the cleaning mechanism 22 is activated, and low-pressure water and high-pressure water are alternately ejected toward the work B, effectively adhering oils and fats. To remove. At that time, the work B rotates from the outlet 12b of the housing 12 while being uniformly sprinkled with the washing water because the peripheral speed of each chain 21 forming the chain conveyor 11 increases toward the outside. It is transported to the worker. On the other hand, the wash water is received by the water receiver 3 which is the bottom surface of the housing 12, and the falling outlet 3a.
Water is collected from the water receiving tank 4. A running water generating means 15 is provided in the water receiving tank 4, the stored water is circulated in one direction by the action of the running water generating means 15 and the intermediate partition wall 25, and the oil and fat component floating in the water surface area by the oil and fat recovery means 45. (Grease) is collected and dust is filtered from the stored water which is circulated by the blowing force by the filtering means 55, and the low pressure water pump 32c and the high pressure water pump 42c connected to the circulation return path 35b downstream of the filtering means 55. The purified cleaning waste water is permanently pumped as cleaning water.

The feature of the work cleaning device of this embodiment is that the cleaning water having a low water pressure and a high water pressure is jetted to the work B alternately with strength before and after passing through the housing 12, so that the cleaning efficiency is high. In order to be able to generate a circulation flow in the water receiving tank 4 in which the cleaning waste water containing oil and fat and dust is received, and to collect and filter the oil and fat and dust from the circulation flow to recycle it as cleaning water. Since it is not wasteful and is very economical, the collection and filtration of oil and fat / dust is performed by circulating the stored water in the water receiving tank 4, thus requiring a dedicated drive source individually. First, it can contribute to the simplification of the structure and the low cost of the equipment.

[Brief description of drawings]

FIG. 1 is a plan view of a cleaning device for workpieces according to this embodiment.

FIG. 2 is a front view of FIG.

FIG. 3 is a sectional view taken along line (3)-(3) of FIG.

4 is a sectional view taken along line (4)-(4) of FIG.

5 is a sectional view taken along line (5)-(5) of FIG.

6 is an enlarged sectional view taken along line (6)-(6) of FIG.

FIG. 7 is an enlarged transverse sectional view of the water receiving tank.

8 is a sectional view taken along line (8)-(8) of FIG.

[Explanation of symbols]

A: Cleaning device 1: Line 1 ': Curved part of line 12: Housing B: Work piece 2: Cleaning water jetting device 11: Chain conveyor

Claims (2)

[Claims] 1. A line which is formed in a U-shape in plan view with both ends approaching each other and which conveys a work to which oil and fat has adhered, and a curved portion which changes direction in the line are isolated from the outside by a housing and pass through the housing. And a cleaning water spraying device for continuously spraying cleaning water toward the workpiece on the curved portion at the same time. 2. A cleaning device for a work, wherein the line is composed of a chain conveyor composed of a group of a large number of parallel chains.