JPH0134633B2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is a method for washing and washing wrapping cloths such as futon covers.
The present invention relates to a reversing method for folding after dehydration and a reversing device therefor.

(Prior Art) Taking a futon cover as an example, more than 90% of the bag-like portion at the periphery is turned inside out when removed from the futon. This happens because the work is done quickly, and the condition does not change even after washing and spin-drying, so it is necessary to turn the item inside out and put it back to its original state.

Furthermore, if air accumulates in the bag-shaped portion of the futon cover, it will wrinkle when ironed and lose its commercial value, so it is necessary to remove these wrinkles and make it flat.

Conventionally, the work of restoring and flattening the bag-like portion has been carried out by human labor, consuming a great deal of time and effort, and there are no working machines known that can automatically handle the process.

(Technical Problem) The present invention has been made in view of the above-mentioned points, and its purpose is to wrap wrappings whose peripheral bag-like portions have been turned inside out to return them to their original state after washing, dehydration, etc. It is an object of the present invention to provide a cloth reversing method and a wrapping cloth reversing device that directly uses the method.

(Technical Means) The present invention which achieves the above-mentioned object is to turn a wrapping, such as a futon cover, which has a folded part on the periphery of one side and has a window on the inside from the inside out state to expose the front side. First, there is a process in which only one side of the wrapping, including the corner, is turned over to the front side, a process in which the inverted side is held in two places and the wrapping is hung in a stretched state, and a process in which the wrapping is turned inside out. This is a method for inverting wrappings, which includes the step of blowing air from the other side of the wrappings on the other side and inverting the wrappings beyond the edge of the window at the other side folding part. The invention includes a pair of claws for holding a wrapping having a folded part in a normal state on one side including a corner thereof, and an expanding mechanism for simultaneously separating these claws in the left and right direction to spread out the wrapping. This is a wrapper reversing device having a configuration including a nozzle which is provided on the upper part of the main body and blows air from the front center direction of the wrapper to the turned-over portion.

As described above, the present invention restores two of the four corners of ordinary wrappings or equivalent parts to a normal state and clamps them between a pair of claws, and the subsequent work is automatically carried out. Let's do it. If all of this were to be done automatically, it would have to become very complicated, but on the other hand, if some parts were to be done manually, it wouldn't be much of a hassle, and sometimes some parts could be returned to their original state. It is from. Moreover, the reason why the part to be held by the nails is a corner or a similar part is that even irregularly shaped wrappings can be turned over by operating the upper and lower parts.

In this way, if the side to be hung is first turned over to the front side, the remaining lower side can be turned over by blowing air from the other side, which is a feature of the present invention. There is.

(Operation of the Invention) In the present invention, the two upper left and right corners C ₁ and C ₂ of the wrapping cloth C are completely turned inside out, as shown in FIG. Then, air is blown from the back side to the side that is still turned over, and the remaining lower corners C ₃ and C ₄ are turned over, and the normal state is shown in Figure 1d. Return to state. At this time, since the top side of the wrapping is already facing out, the boundaries b ₁ and b ₂ between the top side and the bottom side of the inside-out state are
is twisted and contributes to a small amount of restoring force in the direction of the surface. Note that c ₁ to _{c 4} are the corners, and e ₁ to _{e 4} are the edges of the four corners of the window. Air is blown diagonally to the wrappings, aiming slightly inside the edges e ₃ and e ₄ . This is the most efficient method.

In the reversing device, the pair of claws that hold the normal side of the wrapping are provided so that they can be separated from each other to the left and right by an expanding mechanism, so that when the claws are brought close to each other in the middle, the two Hold the corners c ₁ and c ₂ (first
Then, by expanding each claw to the left and right, the upper part of the wrapping cloth C is evenly spread (Fig. 3), and it is in the unfolded state. The lower side is reversed by blowing air in a cross pattern from the upper front of the wrappings C (however, the wrappings are turned inside out), and blowing air into the opening edge of the wrappings C.
Corners c ₃ and c ₄ are inverted beyond e ₃ and e ₄ .

(Embodiment) To explain the following with reference to the illustrated embodiment, FIGS. 2 to 4 show a reversing device directly used for carrying out the present invention.
B is a claw for holding the wrapping C, 3 is an expansion mechanism installed at the upper front of the opening mechanism, 4 is a blower, 5A, 5B are nozzles connected to it, 6A, 6B are installed at the lower part of the front of the main body, and the expansion mechanism is installed at the front. It is a spreading belt that moves in the left-right direction, and projects slightly in front of the claw 2 so that the lower part of the wrapping cloth C touches and spreads left and right (see Fig. 5a). Reference numeral 7 denotes a feeding belt for the wrappings C that has been turned over, which has a substantially V-shaped side surface, and folds the wrappings C in cooperation with a stacking conveyor 8.

The claws 2A, 2B have a detector 11 such as a photoelectric switch for detecting the approach of the wrapping material C, and an air cylinder 12 for opening/closing. It is attached to 17. The expansion mechanism 3 includes the above-mentioned rodless cylinders 14 and 15, which are power sources, and its movable element 1.
6 and 17 are fixed, and a circumferential cable 18 that defines the amount of movement thereof. The circumferential cable 18 is connected to the left and right movers 16 and 17 by a clamp 19, and the pulley 2
By moving left and right between 0 and 21, the claws 2A and 2B are configured to be able to move equally from the center to the left and right.

The nozzles 5A, 5B are provided at the tips of ducts 22, 23 whose one ends are connected to the blower 4, and are provided diagonally above the main body so as to intersect from the left and right in front of the wrapping cloth. This means that in order to invert the lower corners c ₃ , c ₄ far from the center of the wrapping cloth C beyond the edges e ₃ , e ₄ , approximately extensions of both parts c ₃ , e ₃ and c ₄ , e ₄ are required. This is the result of finding that spraying from any direction is effective. The + mark indicates the point where air should be blown.
Slightly inside the edges e ₃ and e ₄ is better.

Note that the claws 2A and 2B can be moved in the direction of the feed belt 7 by a reciprocating mechanism (not shown) (Fig. 5a), thereby linking the part for reversing the wrappings and the part for subsequent processing. That will happen.

FIG. 5 shows an example of processing after reversal, in which 24 and 25 are rolls of the spreading belts 6A and 6B, 26, 27, 28, and 29 are rolls that define the path of the feed belt 7, and 30 31 and 32 are the drive mechanism of the belt 7, and 31 and 32 are the rolls of the stacking conveyor 8, which repeatedly move forward and backward as shown in FIG. Descend for a moment and wait. 33 indicates a lifting mechanism for this purpose.

Therefore, the wrappings C, which have been reversed by the device implementing the method of the present invention and are now in a normal state as shown in FIG. As shown in FIG. 5c, the paper is folded in three (Z-shape) or in half. In this way, the present invention allows a folding and stacking device to be connected to the device, making it possible to very easily and efficiently carry out pre-treatment of wrappings after washing and dehydration before sending them to the ironer. This opens the door to doing so.

(Effects of the Invention) Since the present invention is configured and operates as described above, it can automatically turn over a wrapping such as a futon cover whose peripheral bag-like portion is turned inside out, and restore the normal state. It has the effect of being able to return to a normal state. In particular, in the present invention, only one side of the wrapping is turned over, and then air is blown onto the other turned-over side, so the operation is simple and the wrapping can be turned over smoothly. In addition, the reversing device has a structure in which the claws held in two places are simultaneously separated in the left and right directions by the spreading mechanism, so the wrappings are spread evenly on the left and right without any undue force being applied, and the reversal is instantaneously performed by air blowing. It is efficient and does not get tangled or caught.

[Brief explanation of drawings]

The drawings relate to the reversing device for wrappings according to the present invention, and FIGS. 1 a to d are explanatory diagrams of the reversing state, FIG. 2 is a front view, FIG. 3 is a rear view of the expansion mechanism, and FIG. A perspective view of the device suspended from a claw, and FIGS. 5a to 5c are explanatory views of the device in a folded state. C...Wrappings, c ₁ to c ₄ ...Corners, 1...Main body,
2A, 2B...Claw, 3...Expansion mechanism, 5A, 5B
... Nozzle, 14, 15 ... Rodless cylinder, 18 ... Circling cable.

Claims (1)

[Scope of Claims] 1. When a wrapping, such as a futon cover, which has a folded part on one periphery and has a window on the inside, is turned over from inside out to expose the front side, the wrapping is first opened. The process of flipping only one side of the bag, including the corner, to the front side; the process of holding the flipped side in two places and hanging the bag in a stretched state; and the process of hanging the bag in a stretched state. A method for inverting wrappings, which includes the step of blowing air from one side on the other side and inverting the folded part on the other side beyond the edge of a window. 2 A pair of claws are provided to hold a wrapping having a folded portion on the periphery of one side in a normal state on one side including the corner, and these claws are simultaneously separated in the left and right direction to spread out the wrapping. A device for reversing wrappings, which has an expanding mechanism provided at the top of the main body and a nozzle that blows air from the front center direction of the wrappings to other parts that are turned inside out. 3. The wrapping reversing device according to claim 2, wherein the expansion mechanism includes a pair of cylinders with claws attached to the movable element, and a circumferential cable that defines the amount of movement of the movable element. 4. The wrapping reversing device according to claim 2, wherein two nozzles are arranged so as to blow air toward the back of the other side of the turned over wrapping.