JP3153415B2 - Sheet cutting device for winder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet cutting device for a winding machine which can simplify the structure.

[0002]

2. Description of the Related Art A sheet made of vinyl or plastic continuously supplied from a calendar roll machine or the like is generally continuously wound around a winding shaft by a multi-axis turret winding machine.

FIG. 4 shows a two-shaft turret winder a. The turret winder a has a turret plate d rotatably arranged with respect to a shaft c of a base b, and a winding shaft e is rotatably supported at both ends of the turret plate d so as to be rotatable. .

[0004] However, the continuously supplied sheet S is
It is wound around the winding shaft e, which is guided and rotated by the pressing roll f, and is wound. When the winding is completed, the turret plate d is rotated by approximately 180 ° to move the full wound material g to the other side (not shown), and then the cutting device h is operated to wind the sheet S with the supply side. Cut between things.

[0005] The cutting device h includes first and second arm members j and k that can swing on cylinders i and i on both surfaces of the sheet S, respectively.
The first arm j is provided with a cutting blade m, and the second arm k is provided with a receiving plate n.

As is apparent from FIG. 5, which is a schematic view seen from the direction A in FIG. 4, the cutting blade m is arranged movably in the axial direction of the winding shaft along the guide o, and is not shown. It is fixed to a blade holder p fixed to a belt q that rotates by a motor or the like. Further, the cutting blade m is fixed at an angle θ1 with respect to the cutting direction B in which the sheet is cut, in such a manner that the cutting edge m2 precedes the cutting edge m1 at an angle θ1.

The receiving plate n is formed in a long plate shape extending in the width direction of the sheet S. When cutting the sheet with the cutting blade m, the cutting portion of the sheet S is cut by the cutting resistance. 4 and 5 reduces the upward deformation in FIGS. 4 and 5, and as a result, tension is applied to the sheet S to facilitate cutting, and the cut edge of the sheet S is substantially perpendicular to the sheet length direction. Good cutting is possible.

[0008]

However, in such a conventional sheet cutting apparatus h, as is apparent from FIG. 4, the first and second rockers swinging on the upper surface and the lower surface, respectively, sandwiching the sheet s. As a result of the provision of the arm members j and k, the structure is complicated. In particular, the space on the lower surface side of the sheet S is intended to automate the winding operation and to be inserted into the winding shaft e. There has been a strong demand from users for laying a conveyor or the like capable of supplying a sheet, and there has been a demand for simplification of the structure without impairing the original function of the sheet cutting apparatus.

The present invention has been devised in view of the above problems, and solves the aforementioned problems by simplifying the structure based on providing the cutting blade and the receiving plate in one moving frame. It is an object of the present invention to provide a sheet cutting device of a winder that can be used.

[0010]

SUMMARY OF THE INVENTION The present invention relates to a sheet cutting device for a winding machine, which cuts a sheet between an end of winding and a supply side together with the end of winding on a winding shaft of the winding machine. A moving frame approaching one surface of the sheet from a position separated from the sheet, moving in the axial direction of the winding shaft to cut the sheet, and cutting the sheet on the other surface side from the cutting edge on the one surface side. the cutting resistance during cutting by installing an additional cutting tool having a cutting edge inclined to the preceding orientations in the moving direction of the cutting edge
A cutting tool moving unit that the sheet is deformed into the cutting edge side of the one surface, the sheets this variant is supported by one side
Te, suppress sheet deformation due to the cutting resistance during the cutting
With winding end of the winding shaft of the sheet cutting device winder winding machine winder to cut between the sheet and the winding completion end and the supply side to the to reduce receiving plate, characterized in that the provided It is a sheet cutting device.

[0011]

According to the sheet cutting apparatus of the present invention, the moving frame approaching one surface of the sheet from the position separated from the sheet is
While moving in the axial direction of the winding shaft to cut the sheet,
By providing a cutting tool moving tool equipped with a cutting tool having a cutting blade in which the cutting edge of the other surface side is inclined in a direction preceding the moving direction with respect to the cutting edge of the one surface side, cutting by cutting resistance at the time of cutting The sheet of the section is deformed toward the blade side of the one surface, and a receiving plate for supporting the deformed sheet on the one surface side to reduce the deformation of the sheet is provided on the moving frame, thereby cutting the sheet. The cutting blade and the receiving plate can be provided on one surface of the sheet without impairing the cutting function such that the cutting is performed reliably and with good appearance.

[0012]

An embodiment of the present invention will be described below with reference to the drawings. The sheet cutting device 1 of the winding machine of the present invention can cut the sheet between the winding end end E and the supply side C at the same time as the winding of the winding machine 3 around the winding shaft 3, and is separated from the sheet S. A cutting tool moving tool 7 having a cutting blade 5 and a receiving plate 9 are provided on a moving frame 4 approaching one surface of the sheet S from a position.

The winding machine 2 is exemplified by a well-known two-axis turret winding machine 2 in the present embodiment. The guide roll R1 is supported at the tip by projecting the body 10A. The winding shaft 3 is fitted with a hollow core made of paper, plastic, or the like, and the sheet S is continuously wound around the core. Further, in this example, the winding of the sheet S is performed by the winding shaft on the sheet cutting device 1 side.
0 rotates clockwise approximately 180 ° in FIG.
Are located on the sheet cutting device 1 side.

The cutting device 1 includes a base 11 fixed on the ground.
On the upper side, in this example, the movable frame 4 which swings by the expansion and contraction of the cylinder 12 arranged substantially vertically and approaches one surface of the sheet S, in this example, approaches the upper surface, is provided, and the other surface of the sheet S, That is, a space is formed on the lower surface. Note that the moving frame 4 includes one that achieves various movements, such as one that moves up and down instead of the above-mentioned swing and approaches one surface of the sheet from the side.

As shown in FIG. 2, the moving frame 4 is composed of a pair of left and right frame plates 4A and a case body 4B connecting the front ends between the frame plates and opening the lower surface.

In the case body 4B, pulleys P1 and P2 around which belts 14 circling around both ends are supported, and one pulley P1 has a torque of a motor M fixed to the frame plate 4A. Is configured to be transmitted.

Further, the blade moving tool 7 is fixed to the belt 14 via a mounting 13 capable of holding the belt from both sides. The blade moving tool 7 has a guide receiving portion 15 guided by a guide 16 fixed to the case body 4B along the axial direction of the winding shaft 3. The belt moving around when the motor M rotates. Accordingly, the cutting direction B from the initial position shown in FIG.
, And can be returned to the initial position again by rotating the motor M in the reverse direction.

The cutting tool moving tool 7 includes a cutting tool 6 having a cutting blade 5.
In this example, the angle is adjustable by a screw means N.

The cutting tool 6 comprises a holder 19, a pressing plate 20 which presses the holder with screws, and a cutting blade 5 sandwiched between them. In this embodiment, the cutting blade 5 has a cutting edge more than the cutting edge 5A. Inclination angle θ2 in which 5B precedes cutting direction B
Have been fixed.

The receiving plate 9 is formed of a long plate having substantially the same size as the case 4B fixed to the bent edge 4C of the case 4B via a bracket 21 having a substantially L-shaped cross section. As shown in FIG. 3, the lower end 9 </ b> A
Of the blade base 5A.

Further, in this embodiment, the sheet cutting device 1
The winding start end S on the supply side of the sheet S cut into the moving frame 4
A sheet edge pressing tool 25 is provided for pressing I around the winding core of the winding shaft 3. The sheet end pressing tool 25 is
A bracket 30 which can be moved toward and away from the sheet S is provided with an arm 27 which can swing by a cylinder 29 and supports a roll 26 at the lower end. After cutting the sheet, the roll 26 is wound as shown by a dashed line in FIG. By arranging the sheet along the contour of the take-up shaft 3, the winding start end of the sheet can be wound around the take-up shaft 3.

The operation of the present invention configured as described above will be described. As shown in FIG. 1, the sheet S is continuously fed from a supply side C such as a calendar roll machine (not shown).
The guide roll R2 and the pressing roll R3 are wound around the winding shaft 3 located on the sheet cutting device 1 side of the pair of winding shafts.

When the winding shaft 3 is fully wound, the turret plate 10 is rotated approximately 180 ° clockwise about the pivot,
A new winding shaft 3 is positioned on the sheet cutting device 1 side. The rotation of the pair of winding shafts 3 and the supply of the sheet S are stopped and locked, and the roll 26 of the sheet end pressing tool 25 is pressed against the winding shaft 3 to sandwich the sheet S, thereby feeding the sheet. Side C
, And an appropriate tension is applied to the sheet S between the fully wound rolls.

However, the moving frame 4 can be approached to the upper surface of the sheet in this embodiment by contracting the cylinder 12 from a position (shown by a dashed line in FIG. 1) separated from the sheet S. The blade 5B can be located on the lower surface of the sheet S, and the cutting edge 5A can be located on the upper surface of the sheet S.

In this state, the motor M is driven to rotate, and the cutting tool moving tool 5 is moved in the axial direction of the winding shaft and in the cutting direction B.
The sheet S can be cut. At this time, the cutting edge 5 is arranged so that the cutting edge 5B precedes the cutting edge 5A with respect to the cutting direction B for cutting the sheet, so that the cutting portion of the sheet S causes the cutting edge 5A due to the cutting resistance. Deforms to the side.

The sheet S (shown by a dashed line in FIG. 3) deformed toward the blade base 5A is placed on the lower end 9 of the receiving plate 9 as shown in FIG.
As a result of suppressing the deformation by abutting on A,
The sheet tension increases, and cutting by the cutting blade 5 can be facilitated.

After the sheet S has been cut, the sheet end presser 25 provided with a roller 26 which can move along the contour of the winding shaft 3 is acted on, so that the end of the sheet is applied to the new winding shaft 3. Can be wound.

As described in detail above, according to the present invention, in addition to the above-described embodiment, the moving frame 4 may be able to approach the lower surface of the sheet S from a position separated from the sheet S. The upper surface of the sheet of the sheet cutting device can be opened,
In addition, the present invention can be modified into various modes, such as the receiving plate 9 disposed on the side opposite to the winder 2 with respect to the cutting blade 5, and is also suitable for winders other than the multi-axis turret winder. Can be adopted.

[0029]

As described above, according to the sheet cutting device of the winding machine of the present invention, the structure can be simplified without impairing the function of the sheet cutting device, and an increase in cost can be prevented. Other devices may be easily incorporated into the space created.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing an embodiment of a blade moving device.

FIG. 3 is an enlarged side view showing one embodiment of a blade moving device.

FIG. 4 is a side view of a sheet cutting device for explaining a conventional technique.

FIG. 5 is a view for explaining details of a conventional cutting blade as viewed in a direction A in FIG. 4;

[Explanation of symbols]

 2 Winding machine 3 Winding shaft 4 Moving frame 5 Cutting blade 6 Cutting tool 7 Cutting tool moving tool 9 Receiving plate

Claims (1)

(57) [Claims] 1. A sheet cutting device for a winding machine for cutting a sheet between an end of winding and a supply side together with the end of winding on a winding shaft of the winding machine, wherein the sheet is cut from a position separated from the sheet. In the moving frame approaching one surface, while moving in the axial direction of the winding shaft to cut the sheet, the cutting edge on the other surface side precedes the cutting edge on the other surface side in the moving direction with respect to the cutting edge on the one surface side. Sea cleavage resistance upon cleavage by <br/> with Rukoto preparative cutting tool having a cutting edge inclined to the direction
A cutting tool moving tool that deforms the sheet to the blade edge side of the one surface, and a receiving plate that supports the deformed sheet on one surface side and suppresses and reduces the deformation of the sheet due to cutting resistance at the time of cutting. A sheet cutting device for a winding machine, wherein the sheet cutting device is provided.