JP2882246B2 - Work cleaning equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning apparatus for performing immersion cleaning, spray cleaning, and the like when cleaning a workpiece that requires cleaning, such as a mechanical part.

[0002]

2. Description of the Related Art Oil quenching is sometimes performed as a part of carburizing treatment on steel parts such as engine drive system gears and shafts. In oil quenching, since a work heated to a predetermined temperature is immersed in quenching oil, a large amount of quenching oil adheres to the work surface after quenching.
However, it may be inconvenient if the quenching oil remains on the surface of the work, so the oil on the surface of the work is removed by performing a cleaning step after quenching.

[0003] In the equipment for performing the above cleaning,
In order to enhance the cleaning effect, there is a case where after the work is immersed in an immersion tank containing an inorganic alkaline cleaning liquid, the work is taken out of the immersion tank and spray cleaning such as spraying a cleaning liquid or water onto the work is performed. . In the spray chamber for performing the spray cleaning, the work is temporarily stopped, and a cleaning liquid or the like spouting from a nozzle is sprayed on the work for a predetermined time, and then is conveyed to the next step. On the other hand, in the immersion chamber for immersion cleaning, the work is immersed in the immersion tank for a certain period of time by lowering the work toward the immersion tank, then the work is raised again and the work is transported to the next process. Will be moved.

[0004]

In the above-mentioned spray chamber, since it is only necessary to move the work in the horizontal direction, it is possible to use an existing roller conveyor or a hanger type transfer mechanism. It is necessary to move the work in the vertical direction, so the conventional transport mechanism has a poor connection between the work lifting and lowering operation and the horizontal feed operation.
When the immersion chamber and the spray chamber are provided adjacent to each other, there is a possibility that a mechanism for raising and lowering the work in the immersion chamber and a mechanism for horizontally moving the work in the spray chamber interfere with each other.

Accordingly, an object of the present invention is to rationally combine the raising / lowering operation of a workpiece in an immersion chamber and the horizontal feeding of a workpiece in a spray chamber when the immersion chamber and the spray chamber are adjacent to each other. An object of the present invention is to provide a work cleaning facility that can perform the work.

[0006]

SUMMARY OF THE INVENTION The present invention, which has been developed to achieve the above object, has an object to immerse a workpiece to be cleaned.
First immersion having a first immersion tank (20) containing a first cleaning liquid
Chamber (11) and the first immersion chamber (11)
It has a first work supporting part (40) on which
And position of the first dipping tank (20)
The first movable up and down over the position to remove from
Of the lifting unit (21) and the first lifting unit (21)
Elevating drive mechanism (22) for raising and lowering and containing the second cleaning liquid
Second immersion chamber having a second dip tank (70) and (13), the second immersion
A second work support provided in the pickling room (13) and on which a work is placed.
A holding section (90) and the above-mentioned work in a second immersion tank (70)
And the position to be taken out of the second immersion tank (70).
Second lifting unit (71) movable vertically
When the lifting drive for raising and lowering said second lifting unit (71)
The mechanism (72) is connected to the first immersion chamber (11) and the second immersion chamber (13).
Provided between the first and second elevating units (21,
71) is in the raised position when the first and second wires
A third work horizontally continuous with the work support (40, 90)
And a third support for the third workpiece.
Cleaning solution or water is sprayed on the work placed in section (111).
A spray chamber (12) having a nozzle unit (55) to be attached,
The spray chamber (12) provided in the spray chamber (12)
Reciprocally movable between and the first immersion chamber (11)
Sometimes only standing up to a height that can push the work
When the vehicle is moving backwards,
With front and rear retrievers (116) that can move behind
And the reciprocating motion of these retrievers (116).
When the retriever (116) moves backward,
Retriever (116) is located in spray chamber (12)
Then, the rear retriever (116) enters the first immersion chamber (11),
When the retriever (116) moves forward, the front retriever (116)
Moves the work in the spray chamber (12) to the second immersion chamber (13).
And the rear retriever (116) is in the first immersion chamber (11).
Work feeder to move the work inside to the spray chamber (12)
Device. In addition, reference numerals in this sentence indicate the invention.
Only to help understand
It does not do.

[0007]

The work placed on the work supporting portion of the first elevating unit is immersed in the first immersion tank as the elevating unit descends. In the first immersion tank, the work is washed by using a jet jet or bubbling in the tank. After that, the lifting unit goes up,
The work is taken out of the first immersion tank. Then, the retriever of the work feeder moves backward toward the work. When the retriever moves backward, the retriever can move to the rear side of the work by falling down on the work, and can push the work by raising the retriever when the tip of the retriever comes out to the rear side of the work. Becomes The drive mechanism moves the retriever forward .
With this, the work is moved from the first immersion chamber together with the retriever.
Advance one stroke horizontally in the play room
You. A cleaning liquid or hot water is sprayed on the work placed on the third work supporting portion of the spray chamber, and the work is shower-washed. In addition, the retriever is
By moving forward by the stroke,
Is sent to the work support of the second lifting unit,
This work is performed by lowering the second lifting unit.
It is inserted into the second immersion tank.

According to the above-mentioned work feeder, each immersion chamber is provided.
When the workpiece moves up and down in
Spray movable parts such as bars and drive mechanisms from each immersion chamber
Since the workpiece can be retracted into the chamber and the workpiece feeder does not interfere with the workpiece, the lifting / lowering operation of the lifting unit when the workpiece is immersed in the immersion tank can be performed without any problem. Since the work only needs to move in the spray chamber in the horizontal direction, by installing a retriever type work feeder in the spray chamber, the work elevating operation and spraying operation in each immersion chamber can be performed. Horizontal movement of workpiece in room
Can be rationally combined.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. 1 to 13 show an example of a cleaning facility 10 for performing a cleaning step. FIG. 14 shows the outline of the process of the cleaning step.
FIG. 15 shows an example of the work W to be cleaned. The cleaning equipment 10 is for removing quenching oil adhering to the work W.

An example of the work W is one in which a number of gear members G are neatly arranged on a pallet P as shown in FIG. 15, and strictly speaking, the gear members G are cleaned. Since the gear member G and the pallet P are handled together in the process, in this specification, the entirety including the pallet P and the gear member G is referred to as a work W for convenience.

In FIG. 14, the work W subjected to the oil quenching in the heat treatment step S0 has its own heat of 100 ° C. or more after the heat treatment. By dipping the high-temperature work W in warm water in a first step (surface boiling cleaning step) S1, most of the oil adhering to the surface of the work W due to the boiling generated on the surface of the work W is removed.

Then, in a second step S2, the surface of the work W is further cleaned by spraying hot water on the work W, and then in a third step (degreasing step) S3, the work W is immersed in an alkaline cleaning tank. In the fourth step S4, an alkaline cleaning liquid is sprayed on the work W taken out of the alkaline cleaning tank. In a fifth step (finish cleaning step) S5, hot water is sprayed on the work W, and then in a sixth step S6, the work W
The water droplets adhering to the surface are blown off by air blow, and drying is performed in a seventh step S7.

The cleaning equipment 10 shown in FIGS. 2 and 3 is adapted to sequentially carry out the above-mentioned steps S1 to S7 while intermittently transferring the work W from left to right in the figure. That is, along the transfer route of the workpiece W, the hot water immersion chamber 11 for performing the step S1
And a hot water spray chamber 12 for performing step S2.
And an alkali immersion chamber 13 for performing Step S3
And an alkali spray chamber 14 for performing step S4 and a finishing hot water washing chamber 1 for performing step S5.
5 and an air blow chamber 16 for performing step S6.
And a drying chamber 17 for carrying out step S7.

As shown in FIGS. 1 and 5, the first immersion chamber
Hot water immersion chamber 11 that functions as includes a <br/> hot water immersion tank 20 as a first immersion bath, a first lift unit 21 is movable in the vertical direction, the first raising and lowering the lifting unit 21
And a lifting drive mechanism 22 as lifting means . This immersion tank 20 contains hot water as a first cleaning liquid.
Is done. A water jet nozzle 25 for generating a water flow, an air nozzle 26 for generating bubbles, and the like are provided inside the immersion tank 20. The upper part of the immersion tank 20 is configured to drain the overflowed water. The hot water immersion chamber 11 is covered with a cover 28, and a door 29 is provided at the entrance. The door 29 is opened and closed when the work W is carried into the hot water immersion chamber 11.

[0015] As shown in FIG.
The hot water supplied from the water storage tank 32 by the circulation pump 31 is jetted into the water of the immersion tank 20 through the on-off valve 33. Heat exchanger 35 in water storage tank 32
Is provided. The heat exchanger 35 uses the heat of the oil tank of the oil quenching equipment to heat the water in the water storage tank 32 from 60 ° C.
It is kept at around 80 ° C. Air nozzle 2
Reference numeral 6 indicates that compressed air sent from an air source 36 such as factory air is jetted into the water of the immersion tank 20 via an on-off valve 37. The water in the immersion tank 20 is purified by an oil / water separator 38 (a part of which is shown in FIG. 3).

As shown in FIG.
1, a first workpiece support for supporting a lower surface of the workpiece W
A pair of left and right horizontal sliding guides 40 having an L-shaped cross section, an elevating frame 41 for supporting the sliding guides 40, and a column 42 extending above the elevating frame 41
And the column 4 so that the column 42 can move up and down straight.
2, a guide member 43 for connecting the upper ends of the columns 42 to each other, a guide rod 46 extending above the horizontal member 45, and a guide rod for allowing the guide rod 46 to move up and down straight. It is provided with a guide wheel 47 that guides 46 and the like. Lifting frame 41
Are provided with a pair of left and right rails 48.

The lifting drive mechanism 22 has a cylinder mechanism 50 provided on the upper surface side of the cover 28, and when the rod 51 of the cylinder mechanism 50 moves to the extension side as shown in FIG. By descending,
The work W on the lifting unit 21 is immersed in the immersion tank 20. Also, as shown in FIG. 1, when the rod 51 of the cylinder mechanism 50 moves to the contraction side, the lifting unit 21 moves up, so that the work W
Is taken out of the immersion tank 20. In addition,
A fixed-side slide guide 53 is provided near the door 29 at the same height as the slide guide 40.

On the other hand, the hot water spray chamber 12 is used as a cleaning liquid.
Function as spraying means for injecting all hot water
The nozzle unit 55 that can move up and down is provided. The nozzle unit 55 can be moved up and down by a cylinder mechanism 57 for driving up and down provided on the cover 56. The nozzle unit 55 repeats the operation of descending from above the work W so as to surround the work W, and rising again, while moving the nozzle 58 provided on the inner surface side of the nozzle unit 55 and the fixed nozzle 59 therebelow. Hot water is sprayed toward the work W. As shown in FIG. 8, the nozzles 58 and 59 are connected to the water storage tank 32 via a water pipe 60 and a pump 61, and the hot water taken from the water storage tank 32 is supplied to the nozzles 58 and 59.
It is configured to eject from 59. Fixed nozzle 5
9 is provided near the bottom 62 of the hot water spray chamber 12.

The alkaline immersion chamber 13 functioning as a second immersion chamber includes an alkaline immersion tank 70 as a second immersion chamber in which an inorganic alkaline cleaning agent as a second cleaning liquid is contained.
A second elevating unit 71 and an elevating drive mechanism 72 as second elevating means for vertically moving the elevating unit 71
And so on. Inside the alkali immersion tank 70, a cleaning liquid injection nozzle 75 and an air nozzle 76 for generating bubbles (see FIG. 9) are provided. The alkali immersion chamber 13 is covered with a cover 77, and a door 79 is provided at the entrance.

As shown in FIG. 9, the cleaning liquid injection nozzle 75 receives the cleaning liquid supplied from the storage tank 82 by the circulation pump 81 through the on-off valve 83 and supplies the alkaline immersion tank 70 with the cleaning liquid.
To spout into the liquid. Liquid storage tank 82
Is provided with a heat exchanger 85. This heat exchanger 85
Uses the heat of oil quenching equipment to keep the cleaning liquid in the storage tank 82 at a temperature suitable for cleaning. The air nozzle 76 compresses the compressed air sent from the air source 36,
The liquid is ejected into the liquid in the alkali immersion tank 70 via the on-off valve 87. The cleaning liquid in the alkali immersion tank 70 is purified by an oil / water separator 88 (a part of which is shown in FIG. 3).

Elevating unit 71 of alkali immersion chamber 13
Is a second work supporting portion for supporting the lower surface of the work W.
A pair of left and right horizontal sliding guides 90 having an L-shaped cross section, and a lifting frame 91 supporting the sliding guides 90
A column 92 extending above the lifting frame 91;
A guide wheel 93 for guiding the elevating operation of the support 92, and a support 9
2, a guide rod 96 extending above the horizontal member 95, and a guide rod 96 extending upward from the horizontal member 95.
6 is provided with a guide wheel 97 for guiding the elevating operation.

The lifting drive mechanism 72 includes a cylinder mechanism 100 provided on the upper surface side of the cover 77. When the rod 101 of the cylinder mechanism 100 moves to the extension side as shown in FIG. Is lowered, so that the work W on the lifting unit 71 is immersed in the alkaline immersion tank 70. Further, as shown in FIG. 1, when the rod 101 of the cylinder mechanism 100 moves to the contraction side, the work W is taken out from the alkali immersion tank 70 by raising the elevating unit 71.

A work feeding device 110 is provided from the above-mentioned hot water washing / immersion chamber 11 to the hot water washing spray chamber 12 and the alkali immersion chamber 13.
Thereby, the workpiece W is intermittently moved in the horizontal direction. The configuration of the work feeding device 110 is as follows.

As shown in FIG. 6 and the like, a third work support for supporting the lower surface of the work W in the hot water spray chamber 12 is provided.
A pair of left and right horizontal sliding guides 111 having an L-shaped cross section and a pair of left and right rails 112 are provided. Wheels 115 of a retriever truck 114 are in rolling contact with the rail 112, so that the retriever truck 114 can move in the left-right direction in FIG.

The front and rear of the retriever truck 114
A side retriever 116 and a rear retriever 116 are provided.
Have been. These front and rear retrievers 116 are shown in FIG.
As schematically shown in FIG.
17 and is configured to be rotatable between a position where the distal end portion 118 of the retriever 116 projects obliquely upward and a position where the distal end portion 118 rotates downward.
In a free state where no external force is applied, the retriever 116 and the elasticity of the torsion spring (not shown)
Due to its own weight, the retriever distal end portion 118 rotates to a position where it projects diagonally upward.

The retriever truck 114 is reciprocally driven in the left-right direction in the figure by an appropriate drive mechanism 120 such as a rack and pinion. In the case of the illustrated example, a rack 121 is provided on the retriever trolley 114, and the retriever trolley 114 can be moved forward or backward by rotating a pinion 122 meshing with the rack 121 by a motor 123. .

For example, as shown in FIG. 10, it is assumed that works W1, W2 and W3 are arranged in order from the front. here,
When the retriever truck 114 moves backward (to the left in the figure) as shown by the arrow in FIG. 11, the retriever 116 slides down on the lower surface side of the workpieces W1 to W3 and falls down, and the retriever truck 114 moves to the position shown in FIG. Stop. At the position shown in FIG. 12, the retriever tip 118 is pivoted up, so that the retriever 116 is ready to push the back of the workpieces W1 to W3.

Thereafter, when the retriever truck 114 moves forward by one stroke, the works W2 and W3 move forward to a predetermined position while being pushed by the retriever 116, and the work W1 which has been located in the front row up to that point is Since it is advanced by one stroke by the retriever trolley 191 on the alkali immersion chamber side, a state as shown in FIG. 13 is obtained. At this time, a new work W4 is sent onto the slide guide 40 of the hot water immersion chamber 11.

As shown in FIG. 7, the alkali spray chamber 14 has a nozzle unit 140 inside a cover 139 that reciprocates around a vertical axis. The nozzle unit 140 has a gate shape facing both sides of the work W, and is rotated by the rotation drive mechanism 141. Nozzle 145 provided on the inner surface side of nozzle unit 140
The fixed nozzle 147 provided near the bottom 146 of the spray chamber 14 is connected to the liquid storage tank 82 via a water supply pipe 150 and a pump 151 as shown in FIG.
The cleaning liquid taken from the liquid storage tank 82 is supplied to the nozzles 145, 1
It is configured to squirt from 47. This nozzle 1
An air source 36 is connected to 45 via an on-off valve 155. The washing liquid used here is the oil-water separator 156.
(Partly shown in FIG. 3).

The finishing hot water washing chamber 15 is also provided with a nozzle unit 160 which rotates around a vertical axis. The nozzle unit 160 has a gate shape facing both side surfaces of the work W, and is rotated by the rotation drive mechanism 161. Nozzle 165 provided on the inner surface side of nozzle unit 160
The fixed nozzle 167 provided in the vicinity of the bottom 166 of the hot water washing chamber 15 is connected to a pump 16 through a water pipe (not shown).
4 (shown in FIG. 3), and is configured to jet clean hot water sent from the water storage tank from the nozzles 165 and 167.

The finishing hot water washing room 15 is covered with a cover 168, and a door 169 is provided at the entrance. Door 1
69 is opened and closed when the work W is carried into the finishing hot water washing room 15. The hot water used in the hot water washing room 15 is purified by an oil / water separator 163 (a part of which is shown in FIG. 3).

The air blow chamber 16 has a nozzle unit 170 that can be moved up and down. This nozzle unit 170
Can be moved up and down by a lifting drive mechanism 171 using an air cylinder or the like. The nozzle unit 170 repeats the operation of descending from above the work W so as to surround the work W and ascending again, while the air nozzle 1 provided on the inner surface side of the nozzle unit 170 is repeated.
Warm air is blown from 72 to the work W. Further, hot air is also blown from a fixed nozzle 174 provided near the bottom 173 of the air blow chamber 16. The air blow chamber 16 is also covered with a cover 175, and a door 176 is provided at the entrance. The door 176 is opened and closed when the work W is carried into the air blow chamber 16.

The drying chamber 17 is provided with a blower 181 for blowing hot air to the work W housed inside the chamber 180. A door 182 is also provided at the entrance of the drying chamber 17. The door 182 is opened and closed when the work W is carried into the drying chamber 17.

A work feeder 190 is provided from the above-described alkali spray chamber 14 to the finishing hot water washing chamber 15, the air blow chamber 16, and the drying chamber 17. The work feeder 190 includes a retriever trolley 191 similar to the work feeder 110 described above. The retriever 192 provided on the retriever 191 intermittently moves the work W by one stroke in the horizontal direction. I have to. The retriever truck 191 is reciprocally driven by the motor of a reciprocating drive mechanism 193 (partially shown in FIG. 3) in the direction of arrow F in FIG.

Next, the operation of the embodiment having the above-described cleaning equipment 10 will be described. For example, 150 ° C to 160
The work W oil quenched at a temperature of ° C. is introduced into the hot water immersion chamber 11 and placed on the slide guide 40 of the lifting unit 21. And when the lifting unit 21 descends,
The work W is immersed in the immersion tank 20. The immersion tank 20 contains warm water of 60 ° C. to 90 ° C., and the temperature of the work W is 100 ° C. or higher. Therefore, the work W boils violently on the surface of the work W to generate bubbles on the surface of the work W.

In addition, the air nozzle 26 in the immersion tank 20
And the stirring effect by the water jet amount by the water injection nozzle 25 are obtained. Therefore, the work W
Most of the oil adhering to the surface is removed. Since the oil separated from the surface of the work W in the hot water washing and immersion tank 20 floats on the water surface of the immersion tank 20, the oil-containing water is removed by overflow, and then the elevating unit 21 rises to the original height. The work W is pulled up from the immersion tank 20.

Then, when the retriever truck 114 moves backward by one stroke, reaches the state shown in FIG. 12, and then moves forward again, each work W becomes one as shown in FIG.
Move forward by the stroke. Then, the next work W moves to the immersion chamber 11, and the work W which has been in the immersion chamber 11 is sent to the hot water spray chamber 12.

In the hot water spray chamber 12, hot water is sprayed on the work W while the nozzle unit 55 moves up and down, so that residual oil on the surface of the work W is more sufficiently dropped. Thereafter, the work W is sent to the alkali immersion chamber 13 by the reciprocating motion of the retriever cart 114 similar to the above. Then, the work W is immersed in the alkali immersion tank 70 by lowering the elevating unit 71 of the alkali immersion chamber 13, and the surface of the work W is sufficiently degreased and washed by the stirring action of the nozzle 75 and the like. After that, the lifting unit 71 moves up to the original height.

The work W sent to the alkali immersion chamber 13 has most of the oil removed in the hot water immersion chamber 11 and the hot water spray chamber 12, so that the amount of oil brought into the alkali immersion tank 70 is Since the amount of the cleaning solution in the alkaline immersion tank 70 is extremely long and the solution hardly deteriorates, the necessity of changing the solution is greatly reduced as compared with the related art.

The work W washed in the alkali immersion tank 70 is sent to the alkali spray chamber 14 by the work feeder 190 shown in FIG. Then, the alkaline cleaning liquid is sprayed toward the work W by the nozzle unit 140, and after the oil on the surface of the work W is more sufficiently removed, the work W is sent to the finishing hot water washing chamber 15. Then, the workpiece W is sent to the air blow chamber 16 after finishing washing is performed by spraying hot water on the workpiece W. In the air blow chamber 16, the nozzles 172, 174
The warm air is blown onto the work W, and water droplets and the like are blown off from the surface of the work W. The work W sent to the drying chamber 17 is sufficiently dried by being exposed to dry hot air or warm air at an appropriate temperature.

[0041]

According to the present invention, when the work moves in the first and second immersion chambers in the vertical direction , the work feeding device is provided.
Since the movable part of the apparatus can be retracted from these immersion chambers into the spray chamber and does not interfere with the elevating operation of the work in each immersion chamber, the first and second for immersing the work in the immersion tank are not required . The lifting operation of the lifting unit can be performed without any problem. Since the workpiece is fed only in the horizontal direction in the spray chamber, the spray chamber accommodates a retriever-type workpiece feeder and the first and second immersion apparatuses.
By providing the respective lift units to漬室, the
The lifting and lowering operation of the work in the first and second immersion chambers and the horizontal movement in the spray chamber are rationally performed. First
The first cleaning liquid adhering to the work in the immersion tank is transferred to the spray chamber.
The second cleaning in the second immersion tank
The liquid is unlikely to deteriorate, and the work is
From the downstream to the downstream side without waiting time.
Cleaning is performed while cleaning, so mass production is extremely high
It is.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a part of a cleaning facility showing one embodiment of the present invention.

FIG. 2 is a front view of the entire equipment including the cleaning equipment shown in FIG.

FIG. 3 is a plan view of the entire equipment including the cleaning equipment shown in FIG. 1;

FIG. 4 is a sectional view showing an operation mode of a lifting unit and the like in the cleaning facility shown in FIG. 1;

FIG. 5 is a sectional view taken along the line aa in FIG. 1;

FIG. 6 is a sectional view taken along the line bb in FIG. 1;

FIG. 7 is a sectional view showing an alkali spray chamber, a finishing hot-water washing chamber, a drying chamber, and the like in the cleaning equipment shown in FIG. 2;

FIG. 8 is a diagram showing a piping system of a hot water immersion chamber and a hot water spray chamber in the cleaning equipment shown in FIG. 2;

9 is a diagram showing a piping system of an alkali immersion chamber and an alkali spray chamber in the cleaning equipment shown in FIG.

FIG. 10 is a schematic diagram of a work feeding device used in the cleaning equipment shown in FIG. 2;

FIG. 11 is a schematic view showing an operation mode of the retriever truck of the feeder shown in FIG. 10;

FIG. 12 is a schematic diagram of a state in which a retriever truck of the feeder shown in FIG. 10 is retracted.

FIG. 13 is a schematic view showing a state where a retriever truck of the feeder shown in FIG. 10 has moved forward.

FIG. 14 is a process explanatory view showing a cleaning process.

FIG. 15 is a perspective view showing an example of a work.

[Explanation of symbols]

W: Workpiece, 10: Cleaning equipment, 11: Hot water immersion chamber, 12
... hot water spraying chamber, 13 ... alkali immersion chamber, 14 ... alkali spray chamber, 15 ... finishing hot water washing chamber, 16 ... air blow chamber, 17 ... warm air drying chamber, 20 ... hot water washing immersion tank, 21 ... elevating unit, 22 ... Elevating drive mechanism, 55 ... Nozzle unit, 70 ... Alkaline immersion tank, 71 ... Elevating unit, 72
... A lifting drive mechanism, 110 a work feeder, 114 a retriever truck, 116 a retriever.

Claims (1)

(57) [Claims] 1. A method for pickling a workpiece to be cleaned.First wash
A first immersion chamber having a first immersion tank containing a liquid; A first immersion chamber provided with the work and
The work support portion of the first
Take out the position and work to be immersed in the immersion tank from the first immersion tank
A first lifting and lowering unit movable vertically
And The first A lifting drive mechanism for raising and lowering the lifting unit,Second immersion chamber having a second immersion tank containing a second cleaning liquid
When, A second immersion chamber that is provided in the second immersion chamber and on which the work is placed;
And the work is supported by the second
Take out the position and work to be immersed in the immersion tank from the second immersion tank
Second lifting and lowering unit movable up and down over the position
And An elevating drive mechanism for raising and lowering the second elevating unit; The first immersion chamber and the second immersion chamber are provided between the first immersion chamber and the second immersion chamber.
When the first and second lifting units are in the raised position
Continuous with the first and second work support parts in a horizontal direction
And a third work supporting portion for
Placed on the network support Cleaning solution or water on the above work
A spray chamber having a nozzle unit for spraying; and a spray chamber provided in the spray chamber.And the above
It can reciprocate over one immersion chamber and move forwardWa
Standing at a height that can push the
After the work in a posture that falls down by touching the work
Movable to the sideWith front and rear retriever and this
LaHas a drive mechanism to reciprocate the retrieverAnd these
When the retriever moves backward, the front retriever sprays
And the rear retriever is located in the first immersion chamber.
Approach, and when the retriever advances, the front retriever
After moving the work in the chamber to the second immersion chamber
Retriever transfers work in first immersion chamber to spray chamber
MoveA workpiece cleaning device, comprising: a workpiece feeding device;