JPH0337756Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The invention has a plurality of dipping tanks containing an organic solvent, and the cleaning items such as mechanical parts and electrical parts are sequentially sent to these dipping tanks for cleaning. It relates to industrial cleaning equipment.

<Conventional technology> Conventionally, as a device for cleaning various industrial products using organic solvents, multiple immersion tanks such as an ultrasonic cleaning tank, a hot liquid tank, and a steam tank are installed in parallel, and these immersion tanks are An apparatus for cleaning a net container containing cleaning items while sequentially immersing them in the cleaning apparatus has been proposed in Japanese Utility Model Application Publication No. 51-53765. This cleaning device has a divided roller conveyor installed above each dipping tank with an open top, a divided roller conveyor attached to the arm of a lifter provided for each dipping tank, and further rollers. The conveyor is configured so that the cleaning items placed on the conveyor are pushed by the feed pawl and advanced one by one. Further, since a chlorine-based organic solvent is placed in each immersion tank, a cooling pipe is provided on the inner peripheral surface of the upper part of each immersion tank in order to sink the chlorine-based gas.

<Problems to be solved by the invention> However, in this type of conventional cleaning device, when each item to be washed is moved in and out of each soaking tank by a lifter, it completely protrudes above the soaking tank.
There was a problem in that toxic chlorine-based gas was released from the organic solvents that adhered to the cleaning items, worsening the atmosphere in the workplace.

<Means for solving the problems> The present invention was developed in consideration of the above points, and prevents the release of harmful gases when washing items are put in and taken out of the soaking tanks arranged in parallel. It is an object of the present invention to provide a cleaning device capable of cleaning using an organic solvent without deteriorating the atmosphere of a workplace.

For this purpose, the cleaning device of the present invention has a plurality of soaking tanks arranged side by side, and is provided with an elevating device that lowers the net container containing the cleaning material into each soaking tank, so that the mesh container is moved in sequence above each soaking tank. In a cleaning device that cleans by immersing it in each tank while being transferred, a mounting part is provided immediately before the first immersion tank and immediately after the last immersion tank, and the upper part of all immersion tanks including this mounting part is covered with a cooling wall. A carry-in device is provided for carrying in the cleaning items to the loading section on the entrance side, a carrying-out device is provided for carrying out the cleaning items from the loading section on the exit side, and the area below the upper edge of the cooling wall is provided. The net container is configured to be transferred to each dipping tank.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

FIG. 1 shows a cross-sectional view of the cleaning device, 1a, 1
b and 1c are dipping tanks installed in parallel for cleaning, and these dipping tanks contain a chlorinated organic solvent such as trichlorethylene, and each tank is appropriately equipped with an ultrasonic generator, a heater, etc. This can be a generation tank, hot liquid tank, etc. Two L-shaped cross-section rails 2 that support the washed items are laid in the open upper part of these soaking tanks 1a, 1b, 1c in the longitudinal direction. It is divided at a portion and its front and rear portions to form divided rails 2a to 2c. The dividing rails 2a, 2b, and 2c are each fixed to the lifting frame 11 of the lifting device 10. Reference numeral 3 denotes a net container that moves on the rails 2, and cleaning items such as mechanical parts and electrical parts are stored inside.
Reference numeral 6 denotes a ladder-shaped transfer device disposed above the rail 2 along the rail, and a horizontal push rod 6a that pushes the net container 3 on the rail 2 is placed within the frame 6b at a fixed interval (approximately equal to the width of the dipping tank). This ladder-shaped transfer device 6 is supported by guide rollers 7 so as to be horizontally reciprocating. The base of the ladder-shaped transfer device 6 is bent downward through a cooling wall 23, which will be described later, and is connected to a fluid pressure cylinder 8 as a horizontal reciprocating drive device fixed on a support stand on the left side of FIG. It is connected to and driven horizontally reciprocating with a constant width. The height position of the ladder-shaped transfer device 6 is set at an intermediate position of the net container so that when the horizontal push rod 6a pushes the net container 3, the net container 3 slides smoothly on the rail 2 without falling down. It is set slightly lower than

The lifting device 10 has a frame 12 installed above each immersion tank 1a, 1b, 1c,
A gate-shaped lifting frame 11 is installed inside each immersion tank 1.
a, 1b, 1c so as to be vertically slidable, and a suspension chain 13 connected to the upper part of the elevating frame 11 is fixed to the side of the frame 12 via chain wheels 14, 15. It is configured by being connected to.
Therefore, the elevating frame 11 is lowered by the pushing operation of the fluid pressure cylinder 16, and the dividing rails 2a to 2c supported at the lower part of the elevating frame 11 are lowered, so that the net container 3 located above is lowered.
enters the immersion tanks 1a to 1c. In addition, the lifting device 1
0, the hydraulic cylinder 16 is connected to the frame 1
It is also possible to omit the suspension chain 13 by installing it downward on the upper part of the chain 2.

Immediately before the first immersion tank 1a, a carrying-in side loading section 21 for temporarily placing the washed items is provided so as to extend horizontally along the wall of the immersion tank, and the last immersion tank 1c
Immediately after, a loading section 22 on the carry-out side for placing the cleaning items is provided so as to extend laterally along the wall of the soaking tank. These placing parts 21 and 22 are connected to the entire immersion tank 1.
The placing parts 21 and 22 and the upper parts of all the immersion tanks 1a to 1c are surrounded by a vertical cooling wall 23 having a cooling pipe 23a arranged inside. That is, the net container 3 is connected to each dipping tank 1.
The net container 3 is transferred above the walls a to 1c and taken in and out of each tank, but is configured so that the net container 3 is transferred below the upper edge of the cooling wall 23.

Note that a net container 3 for cleaning items is placed in the placing parts 21 and 22.
It does not have to be placed completely, but may be placed in the space of the placing section.

The carry-in device 30 that carries the net container 3 for cleaning items to the loading section 21 is configured as follows. That is, a rail 32 that supports the net container 3 is provided horizontally at the upper end of the cooling wall 23, and the rail 32 is divided into front and rear sections to form divided rails 32a and 32b. The frame 33 is erected so as to cover the upper side of the rail 32, and a gate-shaped elevating frame 31 is disposed inside the frame 33 so as to be vertically slidable with each dividing rail 32a, 32b fixed to the lower part. A chain wheel 34 is pivotally supported on the frame 33, a hydraulic cylinder 35 is fixed upwardly on the side of the frame 33, and a suspension chain 36 has one end connected to the piston rod of this cylinder and the other end supports the chain wheel. Elevating frame 3 through
Connected to the center of 1.

Therefore, the elevating frame 31 is lowered by the pushing operation of the fluid pressure cylinder 35, and the dividing rails 32a and 3 supported at the lower part of the elevating frame 31 are
2b is lowered, so that the net container 3 located thereon enters the placement section 21 immediately in front of the roller conveyor 19 for carrying in and inside the cooling wall 23.

Reference numeral 37 denotes a fluid pressure cylinder for horizontally pushing the mesh container, which is arranged horizontally above the roller conveyor 19, and has a horizontal pushing member 38 attached to its tip to push and move the mesh container 3 on the dividing rail 32a onto the dividing rail 32b. .

On the other hand, a carry-out device 40 is arranged on the carry-out side of the immersion tank. That is, this unloading device 40 is configured almost the same as the above-mentioned loading device 30, and a rail 42 for supporting the net container 3 is provided horizontally at the upper end of the cooling wall 23 on the unloading side, and the rail 42 is divided into front and rear parts. The rails are divided into divided rails 42a and 42b. The frame 43 is erected so as to cover the upper side of the rail 42, and a gate-shaped elevating frame 41 is disposed inside the frame 43 so as to be vertically slidable with each divided rail 42a, 42b fixed to the lower part. A chain wheel 44 is pivotally supported on the frame 43, a hydraulic cylinder 45 is fixed upwardly on the side of the frame 43, and a suspension chain 46 has one end connected to the piston rod of this cylinder and the other end supports the chain wheel. It is connected to the center of the elevating frame 41 via the elevating frame 41 .

Therefore, the elevating frame 41 is lowered by the pushing operation of the fluid pressure cylinder 45, and the dividing rails 42a and 4 supported at the lower part of the elevating frame 41 are moved downward.
2b is lowered, so that the net container 3 located thereon enters the placement section 22 immediately in front of the roller conveyor 18 for carrying in and inside the cooling wall 23.

47 is a fluid pressure cylinder for horizontally moving the net container, which is disposed horizontally above the roller conveyor 18;
A pull member 48 on a frame surrounding the mesh container 3 at the tip
is attached, and the net container 3 on the dividing rail 42a is pulled and moved onto the dividing rail 42b.

Next, the operation of the cleaning device having the above configuration will be explained. First, the net container 3 of cleaning items carried in by the roller conveyor 19 on the carry-in side is placed on the dividing rail 32a of the carrying-in device 30 located at the lower end. placed. Next, the dividing rail 32a is raised to a predetermined position above by the operation of the fluid pressure cylinder 35, and is horizontally connected to the upper rail 32. Next, the fluid pressure cylinder 37 for horizontal extrusion is activated, and the horizontal extrusion member 3
8 is pushed out, and the net container 3 on the dividing rail 32a is moved onto the next dividing rail 32b. Then, when the fluid pressure cylinder 35 performs a pushing operation and lowers the elevating frame 31, the dividing rail 32b and the net container 3 thereon are placed in the mounting portion 21 within the cooling wall 23. At this time, the hydraulic cylinder 8 is in the position where its piston rod has been pushed out, as shown in FIG.

Subsequently, when the hydraulic cylinder 8 performs a pullback operation, the ladder-shaped transfer device 6 is horizontally moved rightward from the state shown in FIG. 1 by approximately the width of the immersion tank. By this movement of the ladder-shaped transfer device 6, the net container 3 on the dividing rail 2a is pushed by the horizontal push rod 6a and then advances onto the dividing rail 2b, and the net container 3 on the dividing rail 2b is next moved. to the dividing rail 2c, and to the dividing rail 2
The net container 3 on top c is moved to the lowering unloading device 4.
0 dividing rails 42a.

Next, when the lifting frame 11 is lowered by the pushing operation of the fluid pressure cylinder 16 of the lifting device 10, each dividing rail 2a to 2c fixed thereto lowers while holding each net container 3, and each immersion tank 1a
Each mesh container 3 is placed in ~1c. The items to be cleaned in each net container 3 are immersed in each of the immersion tanks 1a to 1c, and subjected to ultrasonic cleaning or the like using an organic solvent.

On the other hand, the mesh container 3 sent onto the dividing rail 42a of the unloading device 40 is raised to the position of the rail 42 together with the dividing rail 42a by the hydraulic cylinder 45 pulling back the piston rod, and the pulling member 48 in the protruding state Go inside. Then, when the hydraulic cylinder 47 for horizontal movement is operated to pull back, the pulling member 48 pulls and moves the net container 3 on the dividing rail 42a onto the dividing rail 42b. Next, when the lifting frame 41 is lowered by the operation of the lifting cylinder 45, the net container 3 on the dividing rail 42b is lowered to the position of the carrying-out conveyor 18 at the lower end, and is transferred onto this conveyor 18 and carried out. . Note that while the ladder-shaped transfer device 6 is being cleaned, it is moved to the left by the pushing operation of the fluid pressure cylinder 8 and returns to the initial position in FIG. 1.

When this cleaning process is completed, the lifting device 10
The hydraulic cylinder 16 performs a retracting operation,
The elevating frame 11 is raised via the suspension chain 13, and each divided rail 2a, 2b, 2c is connected to the rail 2.
It rises to the position and stops, and the dividing rails 2a, 2
The net container 3 on b, 2c returns to the ladder-shaped transfer device 6 again, as shown in FIG.

Then, again, the dividing rail 32b of the carrying-in device 30 on which the new net container 3 is placed is transferred to the fluid pressure cylinder 35.
When it is lowered to the position of the rail 2 and the net container 3 above it enters the inside of the ladder-shaped transfer device 6, next,
The fluid pressure cylinder 8 performs the pullback operation again,
The ladder-shaped transfer tool 6 horizontally moves rightward by approximately the width of the dipping tank, and each net container 3 is similarly moved by being pushed by the horizontal push rod 6a. Then, the lifting device 10 is operated again to put each mesh container 3 into the soaking tank and perform the respective cleaning process, and by repeating the same operation as above, the cleaning items that have entered into the mesh container 3 are sequentially cleaned. It is being washed.

In the above embodiment, the fluid pressure cylinder 8 is used as the horizontal reciprocating drive device for the ladder-shaped transfer tool 6, but a motor-driven crank mechanism, link mechanism, etc. may also be used. The hydraulic cylinders used in the carrying-in device 30 and the carrying-out device 40 can also be horizontally moved or moved up and down using other motor-driven crank mechanisms or link mechanisms. Further, in the carry-in device 30 and the carry-out device 40, the net container 3 is connected to the cooling wall 2.
3, but it is also possible to have a structure in which the mesh container for cleaning items is moved horizontally above the cooling wall and is directly lowered inside the cooling wall.

<Effects of the invention> As explained above, according to the cleaning device of the invention, a placing section for placing the items to be cleaned is provided immediately before the first soaking tank and immediately after the last soaking tank, and The upper part of all the immersing tanks, including the parts, is surrounded by a cooling wall, and the net container is transferred to each immersing tank below the upper edge of the cooling wall. When the washed items are transferred to the next soaking tank, harmful gases that are heavier than air, such as chlorine-based gases emitted from organic solvents adhering to the washed items, are retained inside the cooling wall and are prevented from being released into the surroundings. Also,
When the washed items are carried out, they are temporarily placed on a mounting section within the cooling wall, so that droplets of organic solvent are dropped there, and the release of gas after being carried out is also suppressed.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention; FIG. 1 is a sectional view of a cleaning device, and FIG. 2 is an enlarged sectional view of FIG. 1. 1a, 1b, 1c...Immersion tank, 2...Rail,
2a, 2b, 2c...Dividing rail, 3...Net container, 6...Ladder type transfer tool, 8...Fluid pressure cylinder, 10...Elevating device, 11...Elevating frame,
21, 22... Placement section, 23... Cooling wall, 30...
... Carrying-in device, 40... Carrying-out device.

Claims (1)

[Scope of Claim for Utility Model Registration] A plurality of soaking tanks are arranged side by side, a lifting device is provided to lower a net container containing cleaning material into each soaking tank, and the net container is sequentially transferred above each soaking tank. In a cleaning device that cleans items by immersing them in each tank, a placing section is provided for placing the items to be cleaned immediately before the first immersion tank and immediately after the last immersion tank, and all immersion tanks including these placing sections are installed. The upper part of the container is surrounded by a cooling wall, and a carry-in device is provided for carrying the washing article into the loading section on the inlet side, and a carrying-out device is provided for carrying out the washing article from the loading section on the exit side. A cleaning device characterized in that the net container is transferred to each dipping tank below the upper edge of the cooling wall.