JPH0314158Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a dehydrating device that dehydrates washed clothes, etc. by compression.

(Prior art) Fig. 4 shows an example of a conventional dehydrator (patent application 1973-
25594), and FIG. 5 is a cross-sectional view of the cylinder shown in FIG. 4. In the figure, 1 is the main body base, which is installed on the work floor. 2 is an air cylinder for positioning the truck 3, which presses the cylinder part to the main body base 1 and the conical part to the lower conical recess of the truck 3;
4 is a bottomless cylinder jacket having many small holes in its body; 6 is a piston rod 1 of cylinder 5;
4 is a press disk fixed to the press disk; 7 is an air cylinder attached to the main body (not shown); 8 is a pin that serves as a swinging fulcrum for suspending the cylinder 7 from the main body (not shown); 9 is attached to the main body (not shown). 10 is a pin serving as a swinging fulcrum for suspending the cylinder 9 from a main body (not shown), and 11 is a hinge pin that is locked to the cylinder 7 and the cylinder 9.

12 is an air cylinder fixed to the main body (not shown); 13 is laundry to be dehydrated or a collection thereof; 15 is hydraulic oil which acts as a pressure medium to move the piston rod 14 up and down; 16 is cylinder 5 and a rubber gasket for sealing the piston rod 14, 17 is a holding plate for the rubber gasket 16, and 18 is a dust seal attached to the holding plate 17.

Now, the trolley 3 loaded with the cylinder jacket 4 and laundry 13 is moved to the main body base 1 as shown in FIG.
It moves upward and comes into contact with a stopper (not shown). Next, when the cylinder 2 is actuated to raise the conical part fixed to the tip of the piston rod, the conical part is moved to the bogie 3.
Position and fix the trolley by pressing it against the conical recess on the lower surface. Next, when the cylinder 5 is operated and the press plate 6 is lowered from the state shown in FIG. 4, the cart 3 is pressed through the laundry 13, and the cushion device of the cart 3 is bent to contact the upper surface of the main body base 1. At this time, the conical portion of the cylinder 2 also descends while being pressed upward. The dehydration action progresses in this step.

Next, the cylinder 9 is actuated to make the cylinder 7 vertical, and then the cylinder 7 is actuated to engage the tip of the piston rod with the ear portion 4a of the cylinder jacket 4. Next, operate the cylinder 5 to press the press plate 6.
By slightly moving the cylinder jacket 4 upward, the relative displacement between the cylinder jacket 4 and the laundry 13 is facilitated. At this time, the contact between the upper surface of the main body base 1 and the lower surface of the trolley 3 is also released. The cylinder 7 is also actuated, and the cylinder jacket 4 that engages the cylinder 7 is lifted until its lower end is aligned with or slightly above the press plate 6.

Next, the cylinder 12 is operated to push the laundry 13 out of the machine, the cylinder is restored later, and the cylinder 7 is then operated to push the laundry 13 out of the machine.
is placed on the truck 3, and then the engagement between the cylinder 7 and the cylinder jacket 4 is released. Next cylinder 7
is activated to retract the piston rod, and the cylinder 9 is activated to restore the state shown in FIG. 4. At the same time, the cylinder 5 is operated and the press plate 6 is pulled out above the cylinder jacket 4. Next, the laundry 13 is replaced with another trolley, and the series of dewatering operations described above are repeated.

Now, in FIG. 4, the piston rod 14 of the cylinder 5 makes one reciprocation together with the press plate 6 during one dewatering process. When the piston rod 14 is up, it is in contact with the hydraulic oil 15 inside the cylinder 5, and the hydraulic oil 15
A rubber packing 16 is attached by a presser plate 17 to prevent leakage from between the cylinder 5 and the piston rod 14 to the outside. The rubber gasket 16 is held down by a holding plate 17 to the extent that the piston rod 14 moves up and down smoothly.In order to minimize the amount of hydraulic oil that adheres when the piston rod 14 descends, the holding force of the holding plate 17 is reduced. If it was raised, there was a problem that the rubber packing 16 would wear out prematurely. For this reason, the rubber packing 16 needed to be tightened to a level that would prevent it from wearing out prematurely.

Further, the holding plate 17 has a dust seal 18 to prevent foreign matter adhering to the piston rod 14 from entering the cylinder 5, and the hydraulic oil 15 is squeezed out by the dust seal and remains outside. As the piston rod 14 repeats reciprocating motion, the hydraulic oil adhering to the outer periphery of the piston rod 14 cannot be completely sealed by the rubber packing 16 and the dust seal 18, so it flows downward along the piston rod 14. If the accumulated oil is left on the press plate 6, it will adhere to the inner surface of the cylinder jacket 4 and wash the laundry 1.
3 was contaminated, so it was necessary to clean it regularly.

(Problems that the invention attempts to solve) This invention attempts to solve problems such as laundry being soiled by oil that leaks from the cylinder in conventional dehydrators and adheres to the inner surface of the cylinder jacket. It is something.

(Means for Solving the Problems) Therefore, the present invention provides a dewatering device for dewatering laundry such as clothes after washing by compressing the water. An oil receiver fixed to the upper surface of a pressing member for squeezing laundry is fixed to the lower end of the piston rod of the hydraulic cylinder, and a nozzle that opens downward toward the oil receiver is connected to a vacuum pump via a hose. Further, the nozzle is arranged such that the downwardly facing opening of the nozzle enters the oil receiver at the upper limit position of the piston rod, and this is a means for solving the problem.

(Operation) The hydraulic oil adhering to the piston rod, which moves up and down repeatedly, gradually becomes oil droplets and accumulates in the oil pan. When the piston rod is raised to the upper limit position, the vacuum pump is activated, and the oil accumulated in the oil reservoir is sucked through the nozzle and hose, and is stored in the bottle.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. Figs. 1 to 3 show an embodiment of the present invention. In the figure, reference numeral 35 denotes a pedestal, which is installed on the work floor.
Reference numeral 36 denotes an upper pedestal, which is fixed to the pedestal 35 by a plurality of pillars 37. 38 is pedestal 3
Deck as a grid-like member fixed to 5, 39
Reference numeral 40 indicates a deck plate which is a perforated plate fixed to the deck 38; 40 indicates a wide endless conveying belt having porous or mesh shapes through which water can pass; and 41 indicates a roll for driving the conveyor belt 40.

42 is a basket whose lower half is formed into a cylindrical shape with a perforated plate, 43 is an opening formed in the upper part of the basket for loading laundry, and 44 is fixed to the basket 42 and engages with the pillar 37. A guide 45 is a plate-shaped skirt fixed close to the side facing the input port 43 of the basket 42 via a spacer, and 46 is a lift fixed to the upper frame 36 and engaged with the basket 42 by a chain or the like. drive unit for
47 is a hydraulic cylinder fixed to the upper frame 36;
48 is a hydraulic system consisting of an oil tank and a hydraulic circuit for the hydraulic cylinder 47; 49 is a hydraulic pump for the hydraulic system 48; 50 is a drive motor for the pump 49;
51 is a piston rod of the cylinder 47.

Reference numeral 52 denotes a bowl-shaped member that constitutes a pressing member for compressing laundry together with a membrane 53, and a piston rod 51
is fixed to. The membrane 53 is the bowl-shaped member 5
2 and an elastic membrane that seals water in close contact with the opening. 54 is a water supply port attached to the bowl-shaped member 52, 55 is an air vent attached to the bowl-shaped member 52, and 56 is a liquid such as water sealed between the bowl-shaped member 52 and the membrane 53. 57 is a bowl-shaped member 5
2 is a ring-shaped fixture that holds the membrane 53 in close contact with the bowl-shaped member 52 and is bolted to the bowl-shaped member 52.
58 is a continuous water washer placed before the dehydration process, 5
Reference numeral 9 is a discharge conveyor which is disposed after the dewatering process and is connected to a dryer, etc.; 60 is the laundry to be dehydrated, such as clothes or a collection thereof; 61 is fixed to the piston rod 51 together with the bowl-shaped member 52; The oil pan 62 is a nozzle that is fixed to the upper frame 36 and sucks out oil and water from the oil pan.

A filter 63 is a liquid/gas separator fixed to the pedestal 35. The liquid is collected in the bottle 65, and the gas is sucked in by the vacuum pump 66.
A hose 64 connects the nozzle 62 and the filter 63. A bottle 65 is a liquid reservoir attached to the filter 63 and can be easily attached and detached. 66 is a vacuum pump, which is fixed to the filter 63, sucks up the liquid accumulated in the oil receiver 61 with a nozzle 62 by vacuuming, and sends it through the hose 64 to the bottle 6.
Save it to 5. Further, the gas is exhausted to the outside through a muffler 67 attached to the vacuum pump 66. The muffler 67 is attached to the vacuum pump 66 and is configured to muffle the gas separated from the liquid by the filter 63 and discharge it to the outside.

Next, to explain the operation, when the dehydrator is in the state shown in FIG. 1, that is, the belt 40 is stopped, the basket 42 is in the lowered position, and the piston rod is in the raised position, a substantially fixed amount of laundry 60 is removed from the continuous water washer 58.
is thrown into the basket 42. At this time, the skirt 45 blocks the water flowing out from the basket 42 and prevents it from scattering to the surrounding area, and also prevents the water from flowing out, thereby reducing the unevenness of the laundry 60 due to the water flowing out.

Next, when the hydraulic system 48 is activated upon receiving a signal from the continuous water washer 58 indicating the completion of loading, the piston rod 51
is lowered, and the membrane 53 pressurizes the laundry 60, but when the pressure from the pressurization and the hydraulic pressure are balanced, it comes to rest in the state shown in FIG. 2. Applying pressure slowly at first and expelling air from the laundry during this process is effective in protecting the laundry. The piston rod 51 pressurizes the laundry and continues to dehydrate it during the time required for dehydration.

Next, when a timer (not shown) set in consideration of sufficient dewatering and a dewatering cycle times out, the circuit of the hydraulic device 48 is switched and the piston rod 5
1 rises slightly and maintains the intermediate position as shown in Figure 3.
Or rise to the upper limit. Next, when the pressurized state by the membrane 53 is released by a timer or the like (not shown) and the elevating device 46 is operated, the basket 42, which is engaged by a chain or the like, is raised as shown in FIG. When the drive roll 41 is rotated in the direction of the arrow in response to a signal detected by a limit switch (not shown) or the like to raise the basket 42, the laundry 60 is moved toward the conveyor 59 and discharged as the belt 40 rotates.

Next, the gong conveyor 59 transports the dewatered laundry 60 to a dryer (not shown), etc., while stopping the rotation of the drive roll 41 in response to a signal detected by a timer (not shown), a phototube, etc. (not shown). In response to the stop signal of the drive roll 41, the basket 42 is lowered to the lowered position on the belt 40 in the same manner as described above, and the piston rod 51 is raised to the raised position to restore the state shown in FIG. Next, the rise of the piston rod 51 is detected by a limit switch (not shown), and this signal causes the laundry 60 to be loaded from the continuous water washer 58, and the above-mentioned actions are repeated in cycles of 1.5 to 2 minutes, thereby causing intermittent operation. Perform dehydration.

In this case, the hydraulic oil adhering to the piston rod 51, which repeatedly moves up and down in cycles of 1.5 to 2 minutes as described above, gradually becomes oil droplets and accumulates in the oil receiver 61. Further, in the state shown in FIG. 2, flying water from the continuous water washer 58 may adhere to the piston rod 51 and the oil pan 61, and become an oil-water mixture and accumulate in the oil pan 61. Further, when the piston rod 51 is raised to the raised position and restored to the state shown in FIG. 1, the raising is detected by a limit switch (not shown), etc., and the vacuum pump 66 is operated in response to this signal.

When the vacuum pump 66 operates, the filter 63,
A vacuum is generated inside the bottle 65, hose 64, and nozzle 62. In the state shown in FIG. 1, the nozzle 62 is inserted into the oil-water mixture collected in the oil receiver 61, so the oil-water mixture is sucked by the vacuum generated by the vacuum pump 66, passes through the hose 64 and filter 63, and flows into the bottle. Move to 65. Next, upon receiving a loading completion signal from the continuous washing machine 58 indicating that the laundry 60 has been discharged into the basket 42, the piston rod 51 is lowered, and then the operation of the vacuum pump 66 is stopped.

(Effects of the Invention) Since the present invention is structured as described in detail above, clothes etc. after washing are not stained with hydraulic oil during the dehydration process. Furthermore, by using the device of the present invention, the mixed liquid of oil and water can be automatically discharged from the oil pan, making maintenance extremely easy.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional side view of a dewatering device showing a first embodiment of the present invention; FIGS. 2 and 3 are side sectional views showing different operating states of the main parts of the dewatering device of FIG. 1; FIG. 4 is a side sectional view showing a conventional dehydrator, and FIG. 5 is a detailed longitudinal sectional view of the cylinder in FIG. 4. Explanation of main parts of the figure, 47...Cylinder, 51
...Piston rod, 58...Continuous water washer, 60...
...Clothing, etc., 61...Oil pan, 62...Nozzle, 6
3...filter, 64...hose, 65...bottle, 66...vacuum pump, etc.

Claims (1)

[Scope of utility model registration request] A dewatering device that dewaters laundry such as clothes after washing by compressing the water, the dehydrating device has a hydraulic cylinder as a compressing means, and a compressing member for compressing the laundry is attached to the lower end of the piston rod of the hydraulic cylinder. An oil receiver fixed to the upper surface is fixed, a nozzle opening downward toward the oil receiver is connected to a vacuum pump via a hose, and the downward opening of the nozzle is connected to the upper limit position of the piston rod. A dewatering device characterized by being arranged so as to fit into an oil pan.