JPS62185659A - Supply of long sheet and device thereof - Google Patents

Abstract

PURPOSE:To permit a sheet to be supplied continuously for a long time, by making a group of rolls comprising piled many rolls, by connecting the sheet winding end edge at the outermost periphery of a roller positioned above to the sheet winding start edge at the inside of a roll positioned below successively, extracting the sheet from the winding start end edge at the inside of the uppermost roller for supply. CONSTITUTION:A group of rolls comprises of piled rolls of a long wound sheet 4 and the winding end edge 5 of the outermost periphery of an uppermost roll 1 is connected to the winding start edge 6 of the sheet at the inside of a roll 2 positioned below it by an adhesive tape or adhesive. Rolls 2 and 3 are connected successively by the same manner up to the lowermost rolls. The sheet is extracted from the winding start edge of the uppermost roll of the piled rolls to be supplied to a processing machine. Thus, the sheet can be continuously extracted up to the lowermost roll. As a result, the sheet 4 can be supplied for a long time continuously and a loss of down time for setting up can be reduced.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention
i. Many rolls of long sheet-like materials such as synthetic resin films and heat-shrinkable tubes are stacked in stacks, and the long sheets are fed out continuously from the top roll to the bottom roll. The present invention relates to a method Cl-3 and an apparatus thereof.

[Prior Art] This type of sheet feeding method and its feeding device (j
Various proposals have been made, but when sheets are continuously fed to one processing device, one roll is set in the processing device, and once all the rolled sheets have been drawn out from the roll, a new It is necessary to set the appropriate rolls, and the work must be interrupted while the rolls are being installed. Furthermore, even if an automatic splicing device is installed, while the sheet is being fed from a new roll, the operator must remove the used roll support that has been fed and set another new roll. For this reason, Japanese Unexamined Patent Application Publication No. 58-17
Publication No. 7843 discloses that a large number of rolls with sheets wound around a roll holder are stacked in stacks, and from the top roll to the bottom roll, the winding start end of the top roll, that is, the innermost periphery of the sheet wound around the roll, is stacked. The end of the sheet being positioned is connected to the end of the winding of the lower roll adjacent to this roll, and the end of the sheet is connected to the end of the winding of the lower roll, and the end of the sheet is connected sequentially to the end of the winding of the uppermost roll. A method of feeding sheets is shown. Furthermore, in order to supply sheets, a large number of rolls wound around a roll holter are stacked on a rotary plate, rotated by a drive source, and a roll of the same diameter is placed upright in the center supported by the rotary plate. A feeding device is shown in which the rolls stacked in multiple stages are passed through a support rod, placed on the upper surface of a rotary plate, and fed from the winding end of the outer periphery of the uppermost roll.

[Problems to be Solved by the Invention] In the conventional method and device described above, it is possible to continuously feed sheets from a large number of stacked rolls, and it is necessary to stop the processing device for a long time and feed the rolls. It has the advantage that no work is required, and there is no downtime for the processing equipment, improving work efficiency. However, since the sheet is fed from the end of the outer circumferential winding of the top roll, it is limited to feeding the sheet almost horizontally from the outside of the roll, so there is a limit to the feeding direction, and each time the roll ends, the sheet moves downward sequentially. This makes it difficult to maintain uniform tension, and if the roll overruns, the sheet will fall from the roll holder and prevent it from getting tangled.If you apply the brake, the roll will clump, which may cause the sheet to break.1
This may be a problem requiring a tllI control device.

Therefore, in order to eliminate the above-mentioned conventional problems, the present invention feeds the sheet from the winding start end of the uppermost roll of the stacked rolls and feeds the sheet from the winding end of the outer periphery of the uppermost roll. The purpose of this is to improve work efficiency by connecting the rolls to the starting end and supplying the rolls sequentially, so that the work of supplying the rolls takes four long days.

[Means for Solving the Problems] The structure of the present invention for achieving the above object will be explained using FIGS. 1 to 7 corresponding to the embodiments. The rolls are stacked to form a stacked roll group, and between the vertically adjacent rolls, a sheet winding end located at the outermost periphery of the upper roll is located at the inner periphery of the lower roll. The sheets from the upper and lower rolls of the stacked roll group are connected by connecting the sheet winding start ends, and the sheets are pulled out from the sheet winding start end located on the inner periphery of the roll located at the top stage and supplied to the processing equipment. A sheet feeding method is necessarily a sheet feeding device that includes a rotating plate on which the stacked roll group is placed, a rotating shaft to which the rotating plate is attached, and a drive source for driving the rotating shaft.

[Function 1] The present invention uses the above-mentioned means to start supplying the sheet from the inside of the uppermost roll, thereby rotating the rolls at 1-pe around the axes of the plurality of rolls, thereby eliminating twisting. . In addition, if the sheets on each roll are connected with adhesive or adhesive tape, the supply of sheets to the top roll ends, and at the same time, the supply continues from the roll below, and the same goes for the bottom roll. The supply can be carried out continuously without interruption.

If the axes of the rolls are misaligned due to the tightness of the winding of each roll, problems with sheet feeding can be resolved by aligning the axes so as not to impair the stability of the stacked rolls during rotation. Does not occur.

In addition, in order to increase the stability of the stacked rolls, it is sufficient to install a roll holding frame that can be separated from the rotating plate.In this case, the rotation of the rotating plate is significantly faster than the weight of the stacked rolls. In such cases, the roll holding frame can prevent the stacked rolls from falling from the rotary plate and collapsing due to centrifugal force.

In addition, as shown in Figure 4, the sheet is unwound from the inside of the uppermost roll of the stacking roll in the six directions of arrows, and since the sheet is twisted when being fed, the entire stacking roll is rotated at a certain speed in the direction of arrow B in the figure. , the twist can be removed. Even if the stacking roller overruns, there is no problem, and since the rolls do not close, the sheets are not cut, making handling easier.

Also, since the sheet is pulled out directly above the inside of the roll,
Even if the feeding speed in the sheet processing step changes in a short time, the sheet material can be fed without immediately increasing or decreasing the rotation of the stacking rolls. Furthermore, the feeding device of the present invention includes a sheet winding rod 20 having a large diameter portion with a reverse tapered portion on a rotating shaft supporting a rotating plate on which stacked rolls of sheets to be fed are placed. When the sheet is pulled by the sheet supply, the sheet coming out from the inside of the uppermost roll wraps around the reverse tapered part 19 and slides around the fixed roller 23 and the slack detection roller 29.
It is then supplied to processing equipment. In addition, the sheet is tightly wound around the reverse tapered portion 19, the slip resistance of the sheet is increased or locked, and the sheet is no longer fed, and the slack detection roller 29 moves upward (in the C direction).This movement is detected by the displacement detector 30. The rotational drive sources 13 and 14 are accelerated according to the amount of movement of the slack detection row 529. Due to this speed increase, the lock of the sheet at the reverse tapered portion 19 is released and the sheet supply is restarted. Since the speed of the rotating plate and the roll is increased, the winding of the sheet around the reverse tapered portion becomes looser, and the slipping resistance between the sheet and the reverse tapered portion is reduced, so that the slack detection roller 29 moves downward ( Arrow D)/\Move. This downward movement is detected by the displacement detector 30, and the rotary drive sources 13 and 14 are decelerated in accordance with the amount of slack movement of the slack detection roller 29. By repeating the above-described operations, the sheet can be smoothly fed from the uppermost roll to the lowermost roll to the processing device. When the slack detection roller 29 reaches the lowest position of the rail 34, the rotational drive source 5.6 stops. When using this device to feed the sheet from the inside of the roll and wrap it around the reverse taper part to control the rotational drive source using the edge resistance, rotating the reverse taper rotating shaft 7 quickly will loosen the sheet at once. Although it is sent out from a roll, the response of the rotational drive source is fast even if an extra amount is sent out from the roll, and the on/off control of the rotational drive source can be sufficiently performed. In addition, in addition to the rotary plate 15, a drive source 24.25, a rotary shaft 262, and a rotary plate 27 are provided at two locations on the rotary shafts connected to the drive sources 13 and 14, respectively, so that the rotation from the stacked rolls on one of the rotary plates is While the sheets are being continuously fed, stacking operations on the other rotary plate and connection operations of the sheets between the rollers are performed. Since the inversely tapered rod can be removed from the rotary plate and reattached, the preparation work described above can be done easily. In this way, in the method and apparatus of the present invention, since the sheets are sent out one after another from the stacked rolls, for example, sheets of paper with a width of 40 mm can be fed out per minute from a rolled up roll of paper with a width of 40 mm. When feeding to a processing device, such as a press device, at a feeding speed of 34 m, assuming an 8-hour operating time per day, the required length is 16,000 m, and if each roll is 1 OOOM, 16 rolls are required. However, if the rolls are attached and supplied one by one, setup work is required to attach the rolls as many as 16 times a day, but with the present invention, if 16 rolls are stacked, the rolls can be supplied all day long. There is no need to replace. Even if a minimum of eight rolls are stacked, productivity can be improved by only having to replace the rolls once during the day. Moreover, in the method of the present invention, the processing loss of the material that occurs every time the rolls are replaced is reduced, and the only place where the material loss occurs is at the joints of the sheets between the rolls.

[Examples] Examples of the method and apparatus of the present invention will be described below with reference to the drawings. - In Figure 1, 1 is the roll located at the top stage,
The connection of the sheet 4 from this roll 1 to the roll 2 located at the lower stage and similarly to the roll 3 is shown. In addition, rolls 1 to 3 are made of separators made of, for example, kraft paper with a width of 40 mm coated with a starch agent for dry cell batteries and dried.
It was rolled up. Note that the sheet 4 in the present invention is not limited to the above-mentioned paper, but may also include a nonwoven fabric made of synthetic fibers, a synthetic resin film, or a tube made by folding a heat-shrinkable vinyl chloride or vinylidene chloride tube into a flattened tube. A flexible sheet of material that can only be fed from a roll for feeding into processing equipment (not shown) such as press punching or dimensional cutting. The connection of the sheets 4 is between the sheet 1 located at the outermost periphery of the stacked uppermost roll, that is, the winding end portion 5 of the sheet, and the lower surface of the uppermost roll 1, that is, the inside of the next roll 2 located at the lower stage. Each sheet is connected to the winding start end 6 of the sheets located on the periphery using an adhesive tape (not shown) or an adhesive (not shown). Note that for both rolls 2 and 3, each sheet between the rolls located at the lowest stage is connected in the same manner as described above. In addition, high-frequency welding other than the above, interlocking pressure welding, or other methods other than adhesive may be used, and the number of stacked rolls may vary depending on the winding length per roll and the processing equipment to which the sheet-like material is fed. It is determined by the capacity speed and the required length of the sheet material.

FIG. 2 shows a state in which the blank space 7 of the sheet between the stacked rolls of the present invention is exposed between each roll.
It is preferable that the end 9 of the sheet at the outermost periphery of the roll 8 located at the lowest stage is fixedly covered with adhesive tape on the surface of the sheet to prevent displacement during rotation. Then, the winding start end 10 of the roll located at the top of the stacked rolls is pulled out in the upward direction (arrow A). If the material is sequentially supplied from the top roll to the processing equipment, it can be continuously fed to the bottom roll. In this example, the rolls are simply stacked in a fixed state and the sheet is fed out, but the stacked rolls are placed on a rotary plate connected to a rotational drive source as shown in FIG. A rotation direction indicated by an arrow in the B direction in the figure may be given.

FIG. 3 shows a sectional view of the stacked rolls, and shows a state in which the axes between the uppermost roll 1 and the lowermost roll 8 are offset. In this case, the axes of adjacent rolls are placed on a rotating plate so that they almost coincide, and the axes must be shifted depending on how tightly the rolls are wound, but the multiple rolls as a whole The axes of the rolls must be approximately aligned, so that the stacking behavior on the rolls and the stability during rotation are not compromised.

FIG. 4 shows a cross-sectional view of a main part of an embodiment of the present invention. and 14 and a rotating plate 1 that maintains a horizontal state attached to the rotating shaft 12
5, a large number of stacked rolls are placed on this rotary plate 15 with each roll connected as shown in FIG. .

Figure 5 shows that when the stacked rolls in Figure 4 are rotated at an extremely high rotational speed, centrifugal force causes the stacked rolls to become misaligned, causing the stacked rolls to collapse and the sheets to be cut. It is also possible to provide a roll presser 16 made of a cylindrical frame or net having a size that matches the height and a wall diameter that matches or has a slightly larger outer dimension than the roll.

FIG. 6 shows a sectional view of a main part of a supply device in another embodiment of the present invention. 'g, that is, drive sources 13 and 14 for driving the rotating shaft 12 supported on the frame 11.
and a rotating plate 15 attached to a rotating shaft 12 to maintain a horizontal state, and a large-diameter portion at the top of the rotating shaft that stands upright through the central hollow part 17 of the roll group stacked on the rotating plate 15. A sheet wrapping rod 20 having a diameter of 18 and a reverse tapered portion 19 extending downward is provided. Roughly speaking, an a-rad 21 is attached to the frame 11 at a position apart from the rotary plate, an arm 22 is fixed to the upper end, and a fixed row 523 on which the seat moves once is attached to this arm. A rotary plate 27 is installed in parallel with the rotary plate 15 and mounted horizontally on a rotary shaft 26 which is rotated by drive sources 24 and 25 and the drive source 25 in the same manner as described above.

The winding start end Iot of the sheet sent out from the top roll of the roll group is pulled out upright and wound around the reverse tapered part 19 of the winding rod 20, and the sheet is slid onto the fixed roller 23 and rolled A slack detection row 529 attached to the fixed arm 28 mounted on the frame 11
It has a slack detector 30 that detects the vertical position of the detection roller 29 in conjunction with the detection roller 29, and fixed rollers 31, 32, 33 are attached to the upper left and right sides of the upper part of the fixed arm 28, respectively. From the fixed roller 23 of the rod 21,
Further, the leading end of the sheet is stretched between fixed rows 531, 32, slack detection rollers 29, and fixed rollers 33, and is sent out in the direction (arrow A) of a processing device (not shown). In this embodiment, when the sheet is sent out in the direction of the arrow, the sheet is first wound around the reverse tapered portion 19 and is fed while sliding on the large diameter portion 18 of the winding rod. If this state continues, the sheet will tightly wrap around the inverted tapered portion 19, increasing or locking the sliding resistance, and the sheet will no longer be fed, and the slack detection roller 29 will move upward (in the direction of arrow C in the figure). This is detected by the displacement detector 30, and the rotational drive source 13.
14 is accelerated. This speed increase releases the locking or tightly wrapping of the sheet at the reverse tapered portion 19, and the feeding of the sheet is restarted. Rotating plate 15 and roll u1
6 is accelerated, the winding of the sheet around the reverse tapered portion is relaxed, the sliding resistance is reduced, and the slack detection roller 29 moves downward (indicated by the arrow in the figure).

Since the displacement detector 30 detects this movement, when the slack detection roller 29 reaches the lowest end position 35 of the rail 34 of the fixed arm 28, the rotational drive sources 13 and 14 stop.

FIG. 7 also shows a sectional view of a main part of a supply device according to another embodiment of the present invention. That is, it has drive sources 13 and 14 for driving a rotating shaft 12 supported by a frame 11, and a rotating plate 15 attached to the rotating shaft 12 to keep it in a horizontal state. As shown in FIG. 2, a large number of roll groups are placed with each roll connected to each other. The rod 36 is installed close to the rotary plate 15 kept in a horizontal state, and the arm 37 is fixed to the upper end.
7 is provided with a fixed roller 38 on which the sheet 4 slides.

In addition, an arm 39 is installed at the target position of the rod 36, and a parallel beam irradiation part of a laser beam and an image sensor using a light-receiving camera or a photoelectric switch and a counter are installed to detect the feeding speed of the sheet to the processing equipment. A speed detection unit 40 detects the sheet feeding speed.
A speed detecting section 41 for the above-mentioned supply speed is provided opposite to this speed detecting section 40 and the target position. In addition, a rotary plate 45 is installed horizontally on a rotary shaft 44 which is rotated by drive sources 42 and 43 in parallel with the rod 36, so that the next rotation is carried out during feeding from the stacked roll group. It may also be possible to perform setup work for the stacked rolls. In this case, another rod 46 is provided upright in parallel with the rod 36, and detection parts 47 and 48 are attached to the rods 36 and 46, respectively, and a fixed roller 50 is attached to the arm 49 of the rod 46, and the sheet 4
is stretched and sent in the direction (arrow A) to the processing equipment.

Further, the rotational drive speed (in the direction of arrow B in the figure) of the stacking rolls is substantially synchronized by the above-mentioned image sensors, photoelectric switches, counters, and other detection units.

[Effects of the Invention] As described above, according to the present invention, it is possible to continuously supply sheets from rolls over a long period of time, and moreover, it is possible to provide a method and apparatus without the need for downtime during setup work. .

[Brief explanation of drawings]

FIG. 1 is a perspective view of a method of connecting sheets according to an embodiment of the present invention, FIGS. 2 and 3 are perspective views of feeding sheets from stacked rolls of the present invention, and FIG. 4 is an apparatus of the present invention. 5 is a sectional view of the main part of the apparatus of the present invention with the roll presser frame attached, and FIG. 6 is a sectional view of the main part of the apparatus of the present invention shown in FIG. FIG. 7 is a cross-sectional view of a main part of the apparatus according to the present invention, and FIG. 7 is a cross-sectional view of a main part showing another embodiment of the present invention.

Claims (6)

[Claims] (1) A large number of rolls wound with long sheets are stacked in multiple stages to form a stacked roll group, and the end of the sheet winding is located at the outermost periphery of the roll located in the upper stage between vertically adjacent rolls. is connected to the seal winding start end located on the inner periphery of the roll located at the lower stage to connect the long sheet of each of the upper and lower rolls of the stacked roll group, and at the same time, the seal is located at the inner periphery of the roll located at the top stage. A method for supplying a long sheet, characterized in that the long sheet is pulled out from the winding start end and fed to a processing device. (2) Between the vertically adjacent rolls of a stacked roll group in which rolls wound with long sheets are stacked in multiple stages, the winding end of the long sheet located at the outermost periphery of the upper roll is The winding start end of the sheet located at the innermost periphery of the roll located at the lower stage is connected to connect the sheet on each upper and lower roll, and the sheet winding start end located at the innermost periphery of the roll located at the uppermost stage is connected. A sheet feeding device that supplies sheets from a processing unit to a processing device, the sheet feeding device comprising a rotating plate on which the stacking rolls are placed, a rotating shaft to which the rotating plate is attached, and a drive source for driving the rotating shaft. (3) The sheet feeding device according to claim 2, wherein the rotating shaft is attached with a sheet winding rod having a large diameter portion having an inverted tapered portion at the upper portion. (4) The sheet feeding device according to claim 2, wherein a roll presser frame is attached to the rotary plate. (5) The sheet according to claim 3, further comprising a sheet winding rod having a large diameter portion having the reverse tapered portion, a detection roller for adjusting the sheet feeding speed, and a displacement detector. Feeding device. (6) The sheet feeding apparatus according to claim 2, further comprising a detection device for detecting the feeding speed of the roll on the rotary plate.