JP4332871B2 - Touch roller support arm mounting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an attachment device for attaching a pair of rotatable support arms, to which a touch roller for holding a take-up roll wound around a take-up shaft in a slitter is attached, to a support shaft.
[0002]
[Prior art]
The slitter is a device that vertically slits a wide web such as paper or plastic film and takes out the slit narrow web as a winding roll on a winding shaft. 7 and 8 are schematic views of the slitter 101 provided with the touch roller 11. That is, a supply roller 103 for a wide web 102 made of a plastic film, a cutter 104 for slitting the wide web 102 in the vertical direction, and upper and lower take-up rollers for winding the narrow web 105 slit by the cutter 104 106. The wide web 102 and the narrow web 105 pass through these members and a plurality of guide rollers. In this slitter 101, the cutter 104 slits the wide web 102 into four narrow webs 105 of equal width. The slit narrow web 105 is divided into upper and lower stages by a guide roller 107, and is wound around the take-up roll 16 by two at intervals. Thus, the structure which distributes to an up-and-down stage and winds up with a space | interval is performed conventionally, since the edge parts of the winding roll 16 are wound up without interfering.
[0003]
At this time, in order to prevent air from being caught between the layers of the take-up roll 16 and to obtain an appropriate hoisting hardness, the touch roller 11 is brought into contact with the take-up roll 16 during take-up and is taken up. I am doing so. The touch roller 11 applies contact pressure to the take-up roll 16 by adjusting its own weight or load, and the width of the touch roller 11 is taken up so that the width direction of the take-up roll 16 can be uniformly pressed. A roll slightly longer than the width of the roll 16 is used. Therefore, the touch roller 11 is usually used by replacing it with one corresponding to the product width every time the product is different.
[0004]
In many cases, the touch roller 11 has a configuration in which the support arm is attached to the tip of a support arm that rotates about a support shaft via rotation shafts provided at both ends of the touch roller 11. Usually attached to the shaft.
As a specific method, for example, as shown in FIG. 9, the support arm 12 is installed on a specific base 108, and the base 108 can move along a guide rail 110 provided on the machine frame 109. However, the number of parts is high and the cost is high, and the attaching / detaching work is complicated, so that it is difficult to cope with variations in the width and number of the touch rollers 11.
[0005]
Further, as a device with a small number of parts that solves the above-described complexity, as shown in FIG. 10, a through-hole 111 provided at an end of the support arm 12 is fitted to a rotary support shaft 112 to press screws. In this method, it is easy to move the support arm 12 in the axial direction corresponding to the width of the touch roller 11, but the touch roller 11 that is required is fixed. The rotating support shaft 112 has to be removed every time it is necessary to attach and detach the support arm 12 depending on the number, which is complicated and time-consuming, and causes a reduction in the operating rate of the slitter.
[0006]
[Problems to be solved by the invention]
In view of the above circumstances, the present invention can easily attach and detach a support arm to which a touch roller is attached to a support shaft, and can easily move in the axial direction of the support shaft, and can quickly change the number and width of touch rollers. It is an object of the present invention to provide a mounting device for a touch roller support arm that can be used.
[0007]
[Means for Solving the Problems]
As a means for solving the above-described problems, the present invention provides a mounting device for mounting a pair of rotatable support arms, to which a touch roller for holding a winding roll wound around a winding shaft in a slitter is mounted, to a supporting shaft. It is composed of a boss that fits on the shaft and the support shaft, a support arm that fits rotatably on the boss, and a collar that fits on the boss.
The support shaft is provided with a two-chamfered flat portion on a part of the shaft, and the boss is a cylindrical body having a large-diameter portion and a small-diameter portion connected to the outer periphery, and the flat portion is provided on the outer periphery of the cylindrical body. An opening that can pass through the portion, and a large-diameter portion is provided with one pin projecting in the direction of the small-diameter portion, and the support arm is a plate-like body, and an end portion of the small-diameter portion of the boss Provided with a through hole to be fitted to the outer periphery of the through hole, and an opening that allows the flat portion to pass through the outer periphery of the through hole, and a long hole that allows the support arm to turn freely by loosely fitting the pin around the through hole. The collar has a through hole that fits into the small diameter portion of the boss, and has an opening that can pass through the flat portion on the outer periphery of the through hole. Thus, the above problem is solved.
Further, a rotating rod is attached to the end of the support shaft, and the free end of the rotating rod can be connected to the drive cylinder.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1A is a plan sectional view of the touch roller support arm mounting device 10 according to the present invention. FIG. 1B is a side view of the touch roller support arm mounting device 10 attached to the support shaft 13. It shows the state that has been. The touch roller 11 is a roller having bearings 15 at both ends of the rotary shaft 14 and rotated by the bearing 15 around the rotary shaft 14. The touch roller 11 abuts on the take-up roll 16 by its own weight from above and rotates the take-up roll 16. It is designed to rotate. The touch roller 11 is attached to the distal end portions 17 of the pair of support arms 12 via the rotation shaft 14.
[0009]
The support arm 12 is formed of a plate-like body, and has a parallel flat surface at the tip end portion 17 into which a flat portion 19 having a chamfer shape provided on the inner side of the rotating shaft 14 of the touch roller 11 can be fitted. A concave groove 20 is provided, and the flat portion 19 of the touch roller 11 is fitted into the concave groove 20 and fixed with a screw 21 to attach the touch roller 11.
[0010]
The base end portion 18 of the support arm 12 is attached to the support shaft 13 via an attachment device, and the distal end portion 17 is rotatable about the support shaft 13. The touch roller 11 is supported by the rotating support arm 12 and abuts on the take-up roll 16 by its own weight from above, and rotates upward together with the support arm 12 as the take-up roll 16 gets thicker. The winding roll 16 is pressed with a load due to its own weight. The width of the touch roller 11 is slightly longer than the width of the winding roll 16 so that the width direction of the winding roll 16 can be uniformly pressed. Therefore, it is preferable that the touch roller 11 is used by being replaced with one corresponding to the product width every time the product is different.
[0011]
The touch roller support arm mounting device 10 according to the present invention includes a support shaft 13, a boss 22 that fits on the support shaft 13, a support arm 12 that fits rotatably on the boss 22, and a collar 23 that fits on the boss 22. The details will be described in more detail with reference to FIGS. 2, 3, 4, and 5. FIG.
FIG. 2 is an explanatory view schematically showing the support shaft 13 to which the touch roller support arm 12 is attached, and the support shaft 13 to which the two touch rollers 11 that press the upper winding roll 16 in the slitter are attached. Shows the state. A dotted line indicates the touch roller 11 provided on the lower support shaft 13. The support shaft 13 is a shaft having a circular cross section, supports the two touch rollers 11 with an interval in the middle portion, and both ends are rotatably supported by the frame 24. A two-chamfered flat portion 25 is provided inside the left end of the support shaft 13 in the figure, and the flat portion 25 is formed so that a pair of planes are parallel to each other with a constant width. A single key groove 26 is cut along the axial direction of the surface of the support shaft 13.
Further, a rotation rod 27 is attached to the right end portion of the support shaft 13 in the figure, the free end portion of the rotation rod 27 is connected to the drive cylinder 28, and the operation of the drive cylinder 28 causes the support shaft 13 to be centered. Can be rotated as. (See Figure 6)
[0012]
FIG. 3 is a perspective view of the boss 22, and the boss 22 is formed of a cylindrical body 31 in which a large diameter portion 29 and a small diameter portion 30 are continuously provided on the outer periphery. An inner diameter of the cylindrical body 31 can be fitted to the support shaft 13, and an opening 32 having a plane parallel to the large diameter portion 29 from the small diameter portion 30 is provided on the outer periphery of the cylindrical body 31. It has been. The opening 32 can pass through the flat portion 25 provided on the support shaft 13, and the boss 22 allows the opening 32 to pass through the flat portion 25 of the support shaft 13, and then the boss 22 is inserted into the shaft of the support shaft 13. The cylindrical body 31 can be fitted to the support shaft 13 by moving in the direction. A single keyway 42 is provided along the axial direction on the inner periphery of the cylindrical body 31. A key can be inserted into the key groove 42 and the key groove 26 provided on the support shaft 13 to fix relative movement in the circumferential direction. Further, a wing screw 33 is provided through the key groove 42 provided in the boss 22 to the outer periphery, and the boss 22 can be fixed at an arbitrary position in the axial direction of the support shaft 13 by pressing the key with the wing screw 33. I can do it.
Further, a single pin 34 is provided on the side face of the large diameter portion 29 in the direction of the small diameter portion 30, and is loosely fitted in a long hole 35 provided in the support arm 12 described later. The support arm 12 is pivotable within the range of movement. The position where the pin 34 is provided is a position opposite to the center of the opening 32 and is disposed at a position where it can be loosely fitted in correspondence with the long hole 35.
[0013]
FIG. 4 is a perspective view of the base end portion 18 of the support arm 12 and includes a wide portion 36 having an outer diameter that can be superimposed on the large diameter portion 29 of the boss 22 at the end portion of the plate-like support arm 12. A through-hole 37 that can be fitted to the small-diameter portion 30 of the boss 22 is provided at the center of the wide-width portion 36, and the flat portion 25 provided on the support shaft 13 from the through-hole 37 toward the end of the support arm 12. An opening 38 having a parallel plane that can pass through is provided. A long hole 35 is provided at a position slightly spaced from the inner periphery of the through hole 37 and extending concentrically with the inner periphery. The long hole 35 has a width in which the pin 34 provided in the boss 22 can be loosely fitted, and the length is １ ／ or more and ¼ of the concentric circular length from the facing position of the opening 38. The following ranges are preferred. However, the length of the long hole 35 is not limited to this, and is set by the range of the angle of the support arm 12 in which the winding roll 16 rotates in conjunction with the touch roller 11 from the start to the end of winding. Is.
[0014]
FIG. 5 is a perspective view of the collar 23, which has an outer diameter that can be superimposed on the large diameter portion 29 of the boss 22, has a through hole 39 that fits into the small diameter portion 30 of the boss 22, and has a through hole 39. Is provided with an opening 40 having a parallel plane that can pass through the flat portion 25 provided on the support shaft 13. Furthermore, fixing screws 41 penetrating in the radial direction are provided at two locations on the outer periphery, and can be fixed to the small diameter portion 30 of the fitted boss 22 with the fixing screws 41. The number of fixing screws 41 is not limited to this.
[0015]
Next, the operation will be described.
First, the through hole 37 of the support arm 12 is fitted into the small diameter portion 30 of the boss 22, and the pin 34 protruding from the large diameter portion 29 of the boss 22 is loosely fitted into the long hole 35 provided in the support arm 12. Fit so that. Next, the through hole 39 of the collar 23 is fitted to the small diameter portion 30 of the boss 22 so as to overlap the support arm 12, and the collar 23 is fitted and fixed to the small diameter portion 30 of the boss 22 with the fixing screw 41. At this time, the boss 22, the support arm 12, and the openings 32, 38, and 40 of the collar 23 are overlapped to pass the flat portion 25 provided on the support shaft 13, and then the boss 22 is moved in the direction of the support shaft 13. The boss 22 is fitted to the support shaft 13. Next, the key groove 26 provided on the support shaft 13 and the key groove 42 provided on the boss 22 are combined to insert a key, and the relative movement in the circumferential direction between the boss 22 and the support shaft 13 is fixed. Next, the boss 22 fitted with the support arm 12 is moved in the axial direction, and the axial position is fixed by the thumbscrew 33 at a predetermined position.
[0016]
With this configuration, the support arm 12 that supports the touch roller 11 having a predetermined width can be fixed at a predetermined position in the axial direction of the support shaft 13, and the winding roll 16 can be wound from the start of winding. In the range where the touch roller 11 in contact with the winding roll 16 moves until the end, the support arm 12 is in a range where the long hole 35 provided in the support arm 12 is restricted by the pin 34 provided in the boss 22. It can be rotated.
[0017]
A rotation rod 27 is attached to the end of the support shaft 13, and the free end of the rotation rod 27 is connected to the drive cylinder 28, and the support shaft 13 can be rotated about the axis by the operation of the drive cylinder 28. It has become. When the winding roll 16 has been wound, the support shaft 13 is rotated by the operation of the rotary rod 27 to separate the tip 17 of the support arm 12 from the winding roll 16, and the touch roller 11 carries out the winding roll 16. So as not to interfere.
[0018]
【The invention's effect】
As described above, the present invention is an inexpensive touch roller support arm mounting device that can be easily attached to and detached from the support shaft and can be set at an arbitrary position, and has a small number of parts.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a touch roller support arm mounting device according to the present invention, in which (A) is a plan sectional view and (B) is a side view.
FIG. 2 is an explanatory diagram for explaining the outline of the support shaft in FIG. 1;
FIG. 3 is an explanatory diagram for explaining the outline of the boss in FIG. 1;
4 is an explanatory diagram for explaining the outline of an end portion of a support arm in FIG. 1; FIG.
FIG. 5 is an explanatory diagram for explaining the outline of the color in FIG. 1;
6 is an explanatory diagram for explaining a pivoting operation of the support shaft in FIG. 2; FIG.
FIG. 7 is an explanatory diagram showing an outline of a slitter.
FIG. 8 is an explanatory diagram showing a state of the touch roller according to FIG. 7;
FIG. 9 is an explanatory diagram for explaining a mounting state of a conventional touch roller support arm.
FIG. 10 is an explanatory diagram for explaining a mounting state of another conventional touch roller support arm.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Touch roller support arm attachment apparatus 11 Touch roller 12 Support arm 13 Support shaft 16 Winding roll 17 (Support arm) Tip part 18 (Support arm) Base end part 19 (Touch roller) Flat part 20 Concave groove 22 Boss 23 Color 25 (support shaft) flat portion 26 (support shaft) key groove 27 rotating rod 29 large diameter portion 30 small diameter portion 31 cylindrical body 32 (boss) opening 33 thumb screw 34 pin 35 long hole 36 (support arm) wide portion 37 (support arm) through hole 38 (support arm) opening 39 (collar) through hole 40 (collar) opening 41 fixing screw 42 (boss) keyway

Claims (2)

  In a mounting device for attaching a pair of rotatable support arms to which a touch roller for holding a take-up roll wound around a take-up shaft in a slitter is attached to a support shaft, It is composed of a support arm that is rotatably fitted and a collar that is fitted to the boss. The support shaft is provided with a flat portion having a two-chamfered shape on a part of the shaft, and the boss has a large-diameter portion and a small-diameter portion. Is provided with an opening that can pass through the flat portion on the outer periphery of the cylindrical body, and a large-diameter portion is provided with one pin projecting in the direction of the small-diameter portion, The support arm is a plate-like body, and a through hole that fits into a small diameter portion of the boss is provided at an end of the support arm, and an opening that can pass through the flat portion is provided on the outer periphery of the through hole. It has a long hole that allows the support arm to turn freely by loosely fitting the pin around the periphery, Ra is, the mounting device of the touch roller support arms, wherein the provided with an opening capable of passing through the flat portion, in which the outer periphery of the through hole and has a through hole to be fitted to the small diameter portion of the boss. 2. The touch roller support arm mounting apparatus according to claim 1, wherein an end portion of the support shaft is provided with a rotating rod, and a free end portion of the rotating rod is connected to a drive cylinder.

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