JPH0730622Y2 - Seat frame winding device - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is used for manufacturing a flat sheet of a certain length from a continuous sheet wound around a raw roll,
The present invention relates to a sheet frame winding device for winding a continuous sheet in multiple layers around the outer periphery of a drum having a predetermined diameter.

(Background of the invention and prior art) A certain length from the original roll (for example, length is 4500 to 7000 mm)
When manufacturing a flat sheet of, conventionally, by using a sheet frame winding device, after the sheet that is unwound from the original roll is wound around the outer periphery of the drum in multiple layers (for example, 50 to 100 times), By cutting one part of the multilayer wound sheet in a direction parallel to the drum rotation axis with a blade, a large number of flat sheets having the same shape are manufactured at one time. By the way, when a continuous sheet is wound around the outer periphery of a drum in multiple layers, if the outer diameter of the drum is kept constant, the sheets to be wound on the outer side of the drum are sequentially laminated, and the sheets are wound on the outer layer side. The longer the sheet is, the longer the circumference is.
When the sheet is cut once, the flat sheet length of the portion on the inner layer side and the flat sheet length of the portion on the outer layer side become uneven. Therefore, in order to manufacture a flat sheet of the same length using this type of sheet frame winding device, the outer diameter of the drum is gradually reduced as the continuous sheet wound around the outer circumference of the drum becomes thicker, and a new wound sheet is newly wound. It was necessary to always keep the outer peripheral length of the outer layer portion of the sheet constant. Since it is necessary to successively reduce the outer diameter of the drum as the continuous sheet becomes thicker on the outer periphery of the drum in this way, in this type of sheet frame winding device, the drum is extended radially from the center position of the drum. Each of the book support frames is slidably mounted along the support frame, and as the continuous sheets wind up on the outer circumference of the drum, the sheet support frames are successively slid simultaneously in the direction of the center of rotation. I am trying to get it.

By the way, in this type of conventional sheet frame winding device,
As a means for sequentially reducing the outer diameter of the drum, as the continuous sheet wound around the outer circumference of the drum becomes thicker, the operation is stopped each time (for example, each time the drum rotates about 5 to 10 times), and each sheet is wound. There are two types, one that manually slides the hanging frame toward the center of rotation, and one that automatically slides each sheet hanging frame gradually from the fixed position toward the center of rotation in conjunction with the rotation of the drum. . In the conventional sheet frame winding device in which the sheet winding frame is slid in association with the rotation of the drum, each sheet winding frame always starts at a fixed position separated from the center of rotation at the start of operation. Moreover, it slides toward the center of rotation at a speed proportional to the rotation speed of the drum. In this type of sheet frame winding device, when the sheet thickness of the original roll used changes, the outer diameter (circumferential circumference) of the continuous sheet wound around the drum per rotation when the drum rotates once. There is a property that the increase rate of the length changes (the increase rate increases as the sheet thickness increases, and conversely the decrease rate decreases when the sheet thickness decreases).

(Problems to be Solved by the Invention) However, in the conventional sheet frame winding device, when the outer diameter of the drum is reduced, the method of manually sliding each sheet winding frame in the direction of the rotation center is to wind each sheet winding device. Since the frame can be freely slid along the support frame and over a large length range, a single sheet frame winding device can cover a wide range of flat sheets (for example, a length in the range of 4500 to 7000 mm). Although it has the advantage of being applicable to manufacturing
Many flat sheets are manufactured at one time (eg 50-100
When attempting to manufacture one flat sheet, it is necessary to stop the operation many times during one manufacturing process and sequentially adjust the position of each sheet winding frame. There is a problem that the adjusting operation is troublesome and inefficient. Further, in the case where each sheet winding frame is automatically slid (positional adjustment) with respect to the support frame in association with the rotation of the drum, there is an advantage that the position adjustment of the sheet winding frame does not require time and labor. However, since each sheet winding frame is slid in association with the rotation of the drum, the sliding amount of the sheet winding frame with respect to the number of rotations of the drum is always constant, and the sheet thickness is different in one sheet frame winding device. When the original rolls are used, the length dimensions of each flat sheet to be manufactured are not uniform, and it is not possible to manufacture flat sheets having different lengths by one sheet frame winding device, which means that the applicable range is small. There was a problem.

In view of the above-mentioned problems of the conventional sheet frame winding device, the present invention makes it possible to automatically adjust the outer diameter of the drum and to use a single roll having different sheet thicknesses in one sheet frame winding device. Even in this case, the flat sheet having the same length can be manufactured, and further, the flat sheet having various lengths can be manufactured with one sheet frame winding device.

(Means for Solving the Problem) According to the present invention, a large number of support frames are radially attached around a rotary shaft at equal intervals, and the rotary shafts are respectively equidistant from the center of the rotary shaft in each of the support frames. A sheet frame winding device in which a sheet winding frame is attached in parallel with the above to form a drum, and the sheet wound around the original roll can be wound around the drum by rotating the drum by a drive source, The rotary shaft is a hollow shaft having a hollow interior, and an inner shaft driven by a differential gear so that the rotational speed is variable is inserted into the hollow rotary shaft, while each of the support frames is a long screw bolt and the screw bolt. And a bolt holding member for holding the sheet immovably in the lengthwise direction. Further, female screws are provided at the end portions of the sheet winding frames to attach the female screws to the screens. The screw bolts are screwed together, and the screw bolts are simultaneously and at a constant speed when a rotation speed difference occurs between the hollow shaft and the hollow shaft between the hollow shaft and the screw shafts. It is characterized in that a screw bolt rotation driving means for rotating the screw bolt is provided.

(Operation) According to the seat frame winding device of the present invention, the center shaft inserted into the hollow rotary shaft of the drum can be rotated independently of the drum by the differential machine and the rotation speed can be changed. When the rotation speed difference between the center shaft and the hollow rotation shaft is generated by the bolt rotation drive means, the screw bolts of each support frame can be rotated at a constant speed, so that the rotation speed of the center shaft can be changed by the differential gear. By adjusting, each sheet winding frame can be automatically slid as the drum rotates, and the slide width of each sheet winding frame when the drum rotates once can be freely adjusted. Is possible. Further, according to this sheet frame winding device, each sheet winding frame is operated in a state in which the length of the long screw bolt is set at an arbitrary position, that is, an outer diameter of the drum is set to an arbitrary size. It is possible to start.

(Effect of the Invention) Therefore, the seat frame winding device of the present invention has the following effects.

(1) Simply adjust the rotation speed of the center shaft with a differential machine,
Each of the sheet winding frames can be automatically slid in the direction of the rotation center according to the rotation speed of the drum, and further, the sheet length per one rotation of the drum wound around the outer circumference of the drum can be made uniform.

(2) Since the sliding speed (reduction speed of the outer diameter of the drum) of each sheet winding frame with respect to the drum rotation speed can be changed by adjusting the rotation speed of the center shaft with the differential gear, the original sheets having different sheet thicknesses can be changed. When using a roll, by adjusting the drum outer diameter reduction speed relative to the drum rotation speed according to the sheet thickness, the circumference of the outermost continuous sheet wound around the drum is always kept constant. Therefore, a single sheet frame winding device can accurately manufacture flat sheets having the same length dimension from original rolls having different sheet thicknesses.

(3) The sheet winding operation on the outer circumference of the drum can be started in a state where each sheet winding frame is aligned with an arbitrary position in the length direction of the screw bolt of the support frame. Therefore, a single sheet frame winding device can produce flat sheets of various lengths.

(Embodiment) An embodiment of the present invention will be described with reference to FIGS. 1 to 3. The seat frame winding apparatus according to this embodiment has two left and right bearings.
A continuous sheet Q, which is sequentially unwound from a raw roll (paper roll in this embodiment) P around the outer periphery of the drum 1 rotatably supported by 6, 6 a predetermined number of times (for example, 50
The sheet take-up action is stopped after winding only up to 100 times), and one position of the wound sheet R wound on the outer periphery of the drum is cut in the direction parallel to the central axis of rotation over the entire laminated thickness. It is configured such that a large number of flat sheets can be manufactured at one time by cutting with.

The drum 1 comprises a pair of left and right hollow rotary shafts 11, 11 which are relatively short.
On the outer circumference of the disk 30, support frame units (3A, 3B) each having a total of eight support frames 31, 31 ... Radially attached to the disk 30 at equal angular intervals (45 ° intervals) are fixed, and A total of four connecting rods 39, 39 ... With a predetermined interval (for example, 2560 mm) between each support frame unit 3A, 3B.
The sheet winding frame 1 is connected between the pair of supporting frames 31, 31 facing each other of the supporting frame units 3A, 3B.
It is constructed by installing 5,15 ...

The hollow rotary shafts 11, 11 are positioned concentrically with each other and are rotatably supported by bearings 6, 6, respectively.

Each of the support frames 31, 31 ... Of the support frame units 3A, 3B has a screw bolt 33 and a bolt holding member 32 that rotatably holds the screw bolt 33. Bolt holding member 32
Is a fairly long pipe material with a total length of about 1000 mm.
A notch groove 35 is formed on one side surface over a relatively long range in the length direction of the pipe material. Each of the bolt holding members 32, 32, ... Has a notch groove 35 facing inwardly on the mutually facing side surfaces of the left and right disks 30, 30 with an equal angular interval between them (on the left and right sides, respectively). The notch grooves 35 of the bolt holding members 32, 32 are fixed so as to face each other. Further, the screw bolt 33 has a length (for example, 950 mm) that is slightly shorter than the bolt holding member 32.
(About) is used. This screw bolt
33 is installed so as to be rotatable within the bolt holding member 32 (pipe member 34) and not to be displaced in the longitudinal direction with respect to the bolt holding member 32. As will be described later, the pair of screw bolts 33, 33 on the left and right sides facing each other.
Both screw bolts 3 by rotating
The sheet winding frame 15 installed between 3, 33 is slid along the screw bolts 33, 33, but in this embodiment, the screw bolts 33, 33 on each side are mutually rotated in reverse. Therefore, the screw bolts 33, 33 on each side are engraved with screws of opposite pitch (in Fig. 2, the right screw bolt 33 is the left screw, the left screw bolt 33 is the right screw). Are using.

The support frame units 3A and 3B on the left and right sides are
Are connected by a connecting rod 39 so that 1,31 ..

Each of the sheet winding frames 15, 15 ... Attaches the frame member 18 around which the continuous sheet Q is wound to the outside of the horizontal member 17 that is installed between the pair of screw bolts 33, 33 at the left and right opposite positions. Is forming. The thickness of the horizontal member 17 is the cutout groove of the bolt holding member 32.
It is formed to be slightly smaller than the width of 35, and each end of the horizontal member 17 can slide in the notch groove 35 in the length direction of the bolt holding member 32. The frame member 18 has a length (for example, 2400 mm) slightly longer than the width of the original roll P used, and the outer surface side is formed into a convex arc surface shape. Further, at both ends of each horizontal member 17, screw bolts 33, 3 on each side are respectively provided.
Female screws 16 and 16 that are screwed into 3 (a female screw on the right side is a left screw and a female screw on the left side is a right screw) are formed. .. through the notch grooves 35, 35 of the two support frames 31, 31 at positions where the ends of the horizontal members 17, 17 face each other. It is mounted by screwing the female screws 16, 16 at both ends of the horizontal member to the screw bolts 33, 33 on each side. Also, each sheet winding frame 15,15 ...
In the mounted state, the sheet winding frames 15, 15, ... Are arranged so as to be equidistant from the center of rotation of the hollow rotary shafts 11, 11 and parallel to the center of rotation. Therefore, in the drum 1, the line connecting the outer surfaces of the frame members 18, 18, ... Of the respective sheet winding frames 15, 15, ... Has a regular octagonal shape in a side view (the state of FIG. 1). . A groove 19 (FIG. 3) for guiding a sheet cutting blade over the entire length of the frame member 18 in any one of the frame members 18, 18 ...
Is formed, and the cut edges of the flat sheet to be cut by moving the blade along the groove 19 can be aligned in a straight line. The groove 19 may be formed in all the frame members 18.

On the other hand, the hollow rotary shaft (the hollow rotary shaft on the right side in FIG. 2) 11
A sprocket 21 is attached to the sprocket 21. By driving the sprocket 21 with a drive source (motor) 2, the drum 1 can be rotated.

The screw bolts 33, 33 ... In the support frame units 3A, 3B on the left and right sides are the screw bolt rotation driving means 4
By this, they can be rotated simultaneously and at the same speed. This screw bolt rotation drive means 4
Is a single inner shaft 41 inserted into both hollow rotary shafts 11, 11.
And two left and right large bevel gears 42, 4 mounted on the center shaft 41.
2 and small screw bevel gears 43, 43 ··· that are attached to the base ends of the screw bolts 33, 33 · · 1 respectively and mesh with the large bevel gears 42, 42 on each side, and the center shaft 41 The drum 1
And a differential gear 9 for rotating so that the rotation speed is variable with respect to the rotation speed.

The center shaft 41 has the hollow rotary shafts 11 and 1 on both sides thereof.
It is rotatably supported by 1 and mounted.

The two large-diameter bevel gears 42, 42 on the left and right are fixed to one center shaft 41 with their tooth surfaces facing outward.

The small-diameter bevel gears 43, 43 ... Attached to the base ends of the screw bolts 33, 33 ... mesh with the large-bevel gear 42 on the left side support frame unit 3A side from the left side, On the side of the support frame unit 3B, it meshes with the large bevel gear from the right side. Therefore, when the center shaft 41 is rotated with a rotational speed difference from the hollow rotary shafts 11, 11, a total of eight screw bolts 33, 33 ...
Will be rotated at the same speed in opposite directions.
By the way, the left and right screw bolts 33, 33 ...
Since they are mutually reverse screws (in this embodiment, each screw bolt of the left side support frame unit 3A is a right screw, each screw bolt of the right side support frame unit 3B is a left screw), the screw bolts on each side are opposite to each other. When rotated in the same direction at a constant speed, the two opposite screw bolts 33, 33
Each of the sheet hanging frames 15,15 ...
While keeping the horizontal posture, they slide at the same time and at the same speed in the direction toward and away from the center of rotation of the drum.

The one end side (left side) of the center shaft 41 is connected via the clutch 45 to the center shaft 41.
A sprocket 46 that is brought into contact with or separated from is provided. The sprocket 6 is driven by the power from the differential 9.

In this embodiment, the differential 9 is driven by receiving power from the drive source 2 for rotating the drum 1.
Further, the differential gear 9 can change the rotation speed of the center shaft 41 steplessly.

Further, the center shaft 41 can be manually rotated by the handle 50 independently while the operation is stopped.

The original roll P is unwound by the sheet unwinding device 7, and the sheet unwinding device 7 is driven by a drive source 2 for rotating the drum 1. Further, the drive speed of the sheet unwinding device 7 (sheet feeding speed from the original roll P) can be adjusted to match the sheet winding speed on the drum 1 side. That is, the sheet winding speed on the drum 1 side is
Rotational speed of drum 1 and drum outer peripheral length (each sheet winding frame
(Length per lap of continuous sheet wound around 15,15 ...)
However, when changing the length of the flat sheet to be manufactured, the outer peripheral length of the drum 1 (each sheet winding frame
(Determined by the distance from the center of rotation of 15,15 ...)
The sheet winding speed on the drum 1 side changes when the drum outer peripheral length is changed in such a manner. At that time, the sheet feeding speed on the original roll P side on the drum 1 side changes. Adjustment is required to match the sheet winding speed.

The method of use and the operation of the illustrated sheet frame winding device will be described. When this sheet frame winding device is used, each sheet winding frame 1 according to the length of the flat sheet to be manufactured in advance is used.
The position of 5,15 ... Is adjusted and the sheet feeding speed on the original roll P side is adjusted according to the sheet winding speed on the drum 1 side, and the sheet thickness of the original roll P to be used is further adjusted. The rotational speed of the center shaft 41 by the differential 9 is adjusted. That is, according to this sheet frame winding device, the outer peripheral length of the drum 1 can be adjusted by sliding the sheet winding frames 15, 15, ... In the radial direction of the drum along the screw bolts 33, 33. However, since the screw bolts 33 are long ones, it is possible to make the slide width of each sheet winding frame 15, 15, .. The outer circumference can be adjusted infinitely within the range of about 7,000 mm at maximum and about 4500 mm at minimum. When adjusting the outer peripheral length of the drum 1, while the operation is stopped (the rotation of the drum 1 is stopped), the center shaft 41 is handled with respect to the drum 1.
When manually rotated by 50, the left and right bevel gear mechanisms (4
2,43) screw bolts 33,33 ...
Are rotated at the same time (the screw bolts at the left and right opposite positions rotate in opposite directions), resulting in a total of 8
.. can be slid inward or outward in the radial direction of the drum at the same time and at a constant speed, and each sheet wrapping frame 15, 15, .. do it. In the illustrated sheet frame winding device, when the handle 50 is fitted to the center shaft end portion and rotated rightward, the sheet winding frames 15, 15, ... Are slid outward, and vice versa. If you rotate the handle 50 to the left, each seat frame 1
5,15 .. will slide inward. or,
In the illustrated sheet frame winding device, each sheet winding frame 15, 15, ...
When the drum is slid outwardly to the outermost position (the position shown by the solid line 15 in FIGS. 2 and 3), the outer peripheral length of the drum can be extended to about 7000 mm, and each sheet winding When the frames 15, 15 ... Are slid inward to the innermost position as shown by the chain line 15 ', the drum outer peripheral length can be tightened to about 4500 mm (about 4500 with one unit).
Flat sheets of various lengths in the range of ~ 7000 mm can be produced).
Next, according to the set drum outer peripheral length, the drive speed of the sheet unwinding device 7 is set so that the sheet unwinding speed on the drum 1 side and the sheet unwinding speed on the original roll P side match. adjust. Further, the rotation speed of the center shaft 41 is adjusted with respect to the drum rotation speed by the differential gear 9 in accordance with the sheet thickness of the used raw roll P. That is, in the illustrated sheet frame winding device, during operation, the drum 1 is adapted to wind the continuous sheet Q while rotating counterclockwise in FIGS. 1 and 3, and the center shaft 41 also rotates counterclockwise like the drum 1. However, if the rotation speed of the center shaft 41 is set to be slightly higher than the rotation speed of the drum 1 by the differential machine 9, the center shaft 41 gradually moves in the left rotation direction with respect to the drum 1. The positions of the respective sheet winding frames 15, 15 ... Can be gradually slid toward the drum rotation center. The sliding speed of each of the sheet winding frames 15, 15 ... In the direction of the center of rotation of the drum is inward by the thickness of the continuous sheet Q while the continuous sheet Q is wound once around the outer circumference of the drum. The rotation speed of the center shaft 41 is adjusted so that it can slide. Further, before starting the operation, the leading end side of the continuous sheet Q is manually wound around the outer periphery of the drum 1 once or more. If the drive source 2 is operated in this state, the continuous sheet Q unwound from the original roll P by the sheet unwinding device 7 is sequentially wound around the outer periphery of the drum, and at that time, while the drum 1 makes one revolution. .. are slid inward by the thickness of the continuous sheet Q wound around the outer periphery of the drum. Therefore, the wound sheet R wound around the drum 1
The perimeter of the outermost layer portion (see FIG. 1) is always constant, and the length per revolution of the continuous sheet Q wound around the outer periphery of the drum is constant. In this way, the continuous sheet Q is wound around the drum 1 a proper number of times (for example, 50 to 100 times) and then the operation is stopped (at this time, each sheet winding frame is shown by a chain line 15 "in FIG. 1). A single sheet is wound around the outer periphery of the drum at a single position over the entire width of the sheet with a blade to manufacture a large number of flat sheets at a time. When the wound sheet R is cut with, if the blade is moved along the groove 19 formed in the one frame member 18 of the sheet winding frame 15, the cut edges can be aligned accurately in a straight line. The flat sheets manufactured in this way have the same length dimension as each other, and when the operation is restarted next, the center shaft 41 is rotated from the initial alignment state to the drum 1 to the left rotation speed. The center shaft 41 is turned in the opposite direction by the handle 50 only within the range displaced in the direction. .. are slid outward to slide the respective sheet winding frames 15,15 ..
The drive source 2 may be operated after winding around the outer periphery of the.
When manufacturing flat sheets with different lengths,
. Can be manually rotated (by the handle 50) to slide the respective sheet winding frames 15, 15 ... to a predetermined position to adjust the sheet length per one rotation wound around the outer circumference of the drum. When the original rolls P having different sheet thicknesses are used, the rotational speed of the center shaft 41 is adjusted by the differential machine 9 and the sheet winding frames 15, 15, ... Adjust the amount of slide.

Thus, according to the illustrated sheet frame winding device, the differential 9
By the rotation speed of the drum 1, each sheet winding frame 15,1
By adjusting the slide speed of 5 ..., it is possible to manufacture flat sheets with uniform length dimensions, and it is possible to manufacture flat sheets with different length dimensions with a single sheet frame winding device. Even when the original rolls having different sheet thicknesses are used, flat sheets having the same length can be manufactured.

[Brief description of drawings]

1 is a schematic side view of a seat frame winding device according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG.
It is a III-III sectional view of a figure. 1 ... Drum 2 ... Drive source 3 ... Support frame unit 4 ... Screw bolt rotation drive means 7 ... Sheet unwinding device 9 ... Differential machine 11 ... Hollow rotary shaft 15 ... Sheet winding frame 16 ... … Female screw 31 …… Support frame 32 …… Bolt holding member 33 …… Screw bolt 41 …… Center shaft

Claims (1)

[Scope of utility model registration request] 1. A plurality of support frames (3) around a rotating shaft (11).
1, 31 ··· are radially attached at equal intervals, and the seats are arranged parallel to the rotary shaft (11) at positions equidistant from the center of the rotary shaft (11) in each of the support frames (31, 31 · ·). A sheet wound around a raw roll (P) by attaching a winding frame (15, 15 ...) To form a drum (1) and rotating the drum (1) by a drive source (2). A sheet frame winding device capable of winding (Q) around a drum (1), wherein the rotating shaft (11) is a hollow shaft having a hollow inside and a differential ( 9) is inserted through the center shaft (41) driven so that the rotation speed is variable, while the support frames (31, 31 ...) Rotate the long screw bolt (33) and the screw bolt (33). It has a bolt holding member (32) that is movable and that does not move in the longitudinal direction. Female thread on the end portion (15a) of each sheet wrapping frame (15,15 ...) (1
6) is provided so that the female screw (16) is screwed into each of the screw bolts (33, 33 ...) And the inner shaft (4
Between 1) and each screw bolt (33, 33 ...)
When a difference in rotational speed occurs between the center shaft (41) and the hollow rotating shaft (11), the screw bolts (33, 33.
A sheet frame winding device characterized in that it is provided with a screw bolt rotation driving means (4) for simultaneously rotating (.