JPH0217829Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial field of application) The present invention relates to a sliver for slicing a rotating roll-shaped long object. This invention relates to a slit that can be fixed and attached.

(Prior Art) Conventionally, as a slitter for slicing this type of rotating roll-shaped long object into rings, there has been a fully automatic slitter (for example, a fully automatic slitter that cuts by rotationally driving or locking a round blade (for example, Utility Model Application No. See application documents No. 47933 (Jikko Sho 59
-17596 Publication)) and semi-automatic slitters that pivotly support one end of a straight knife and cut while rotating it with a manual lever.

(Problem that the invention aims to solve) However, conventional slivers have only round blades or only straight blades, and with the recent diversification of tapes,
In other words, due to the diversification of materials for long roll-shaped objects, there are cases where it is possible to cut more efficiently and neatly using a round blade, and there are cases where it is possible to cut neatly and efficiently without welding using a straight blade. Slitter users also began to make various types of tapes, creating the uneconomical need to prepare round-blade slitters and straight-blade slitters for each type of tape.

In particular, a straight blade that can be easily processed into various shapes is suitable for long objects in the form of adhesive-coated rolls, rolls of nonwoven vinyl sheets, and tightly wound rolls.

However, because cutting is always performed at a fixed cutting point, the blade tends to lose its sharpness in a relatively short period of time.
In this respect, a round blade has the advantage of being able to continue cutting while moving the cutting point, but has the disadvantage that it is difficult to process the shape of the cutting edge into various shapes and is expensive.

The present invention has been developed in view of the problems of the prior art described above, and allows a single slitter to use either a round blade or a straight blade depending on the material of the long roll-shaped object. Another object of the present invention is to provide a slitter whose round blade and straight blade can be exchanged, and which can easily prevent the cutting quality from becoming dull by appropriately moving the cutting point when using the straight blade.

(Means for Solving the Problems) The means of the present invention for achieving the above object is to support a rotating long roll-shaped object with a guide support rod inserted into a hollow winding core, and to In a slitter that cuts the above-mentioned material into circular slices with a cutting blade supported on a table that moves at predetermined width intervals in the longitudinal direction of a support rod, a round blade is removably mounted on the table. A stand is provided that supports a rotatable support shaft, and the straight blade can be detached and mounted so that the straight blade can be freely moved in the longitudinal direction so that the cutting edge aligns with the position near the guide support rod of the round blade when installed. This is a slitter with an interchangeable round blade and straight blade, which is characterized by a mounting seat that allows the blade to be replaced with a straight blade.

(Function) The material of the long object to be cut or A round blade or a straight blade can be selected and installed depending on the density of the winding.
Furthermore, when a straight blade is installed, good sharpness can be easily maintained by moving the straight blade in the longitudinal direction of the straight blade and moving the cutting point.

(Example) An example of the present invention will be described below with reference to the drawings.

1 and 2 showing an embodiment of the present invention, roll-shaped elongated articles A made of various materials ranging from natural fiber woven fabrics such as cotton cloth to plastic non-woven fabrics are shown.
is inserted into the hollow part of the winding core a made of paper tube at the center, and is rotated by a metal guide support rod G installed on the machine base 10 of the slitter 1 by a support g almost horizontally. It is freely supported, and is rotated by a motor M1 in a motor box B via a chuck C that is engaged with one end of the elongated object A.

The guide support rod G is a stationary shaft that passes through the chuck C and is fixed by a stop plate 14, and has a D-shaped cross section and a cut surface G1 that extends about 5 mm inward from the outer surface. . The cutting surface G1 faces toward the rear where the cutting blade is installed. The movable table 20 on which the cutting blade is mounted moves in a precise straight line, such as a linear way, on a movable cart 30 that reciprocates in the longitudinal direction on the machine base 10, in a direction perpendicular to the longitudinal direction of the machine base, and immediately in the front and back direction. It is mounted so that it can reciprocate back and forth via a guide means 21. Also table 2
A frame 27 is fixed to the top surface of the rotary shaft 27, which is equipped with a round blade 25 and supports a rotary shaft 26 that is rotatably driven, and a motor M2 that rotatably drives the rotary shaft 26 via a timing belt and a pulley is fixed to the bottom. A supporting stand 28 on which is mounted is suspended from both sides. The back and forth movement of the table 20 is achieved by fixing a nut (not shown) to the lower surface of the table 20, which is moved back and forth by the rotation of a ball screw 31 that is rotatably supported in the back and forth direction of the cart 30. executed for.
The return limit switch L1 moves forward and switches to reverse at a predetermined position where cutting is completed, and along with the safety limit switch L2, the return limit switch L1 moves backward via the proximity switch S1 and the moving means 22 in accordance with the reduction in diameter due to wear of the round blade. It is installed on a pedestal 23 that is A limit switch L3 that commands the table to move forward is installed at the rear end of the cart 30, and when pushed by a dog D1 fixed to the rear end of the table, the limit switch L3 moves the cart 30 in the longitudinal direction of the machine by the cutting width. After the inching movement, the table 20 is commanded to move forward. That is, the limit switches L1 and L3 command the rotation and rotation direction of the motor M3 suspended from the rear end of the truck 30 that rotationally drives the ball screw 31.

The movable trolley 30 is mounted parallel to the guide support rod G.
A nut 35 screwed onto the long ball screw 15, which is rotatably supported in the longitudinal direction of the cutter 0 and rotated by the motor M4 in the motor box B, is fixed to the lower surface of the cutter. Platform rail 1
1 and 12 inching toward the chuck side. The limit switch L3 commands the rotation of the motor M4, and the transducer 16 directly connected to the ball screw 15 stops the motor after counting the number of rotations corresponding to a predetermined cutting width. Further, the limit switch L1 hits the stopper 29 at a position where the cutting blade approaches the cutting surface G1 of the guide support rod by a predetermined distance (approximately 3 mm), and issues a signal to return the table 20.

Safety limit switch L2 activates motors M2 and M3 when the cutting blade approaches the cutting surface G1 abnormally (approximately 1.5 mm) when return limit switch L1 fails.
Turn off the power.

Note that 13 in the figure is a monolever, which manually controls the movement of the table 20 and the trolley 30. m is a motor that rotates a whetstone that grinds the round blade 25;
L4 is a limit switch that determines the return position of the truck 30 to the left, and L5 is a limit switch that limits movement of the truck 30 at the right end. or
CB is a control box equipped with a cutting width setter, automatic means changeover switch, motor operation indicator lamps, etc.

The round blade 25 as a cutting blade, which is preferably used when the roll-shaped long article A to be cut is a woven fabric of natural fibers or chemical fibers, has a diameter formed at the end of the rotating shaft 26. It is fastened to a large mounting seat 26a by a bolt 26b and a nut 26c protruding from the center thereof. The direction of rotation is selected to cut the long object A from top to bottom (arrow view Z), and the thread direction of the bolt 26b and nut 26c is set in the direction of tightening by this rotation. There is.

On the other hand, the straight blade 24, which is a cutting blade suitable for cutting a long material A of nonwoven fabric such as plastic, has a wave-shaped blade on one side and a straight blade on the other side, as shown in FIG. It is now possible to use different cages depending on the material.

The lower mounting hole 24a is an elongated hole, and the cutting point can be changed by pulling upward at the appropriate time. Fixture 40 for straight blade 24
These include a mounting plate 41 fixed to the mounting seat 27a on the front surface of the frame 27 with bolts, and an upright piece 41 of this mounting plate that comes into contact with the round blade mounting seat 26a.
A frame 42 is vertically welded to the frame 42, a pair of arms 43 and 44 each having a long hole bolted to the upper and lower ends of the frame 42 to be movable in the front and back directions, and a front end of the upper arm 43. It is composed of a straight blade extension piece 45 that is suspended so as to be movable in the vertical direction. Mounting hole 4 for straight blade tensioning piece 45
5a is also an elongated hole with a length corresponding to the straight blade mounting hole 24a. The straight blade 24 is attached to the lower arm 44 by a bolt 46 to the straight blade extension piece 45.
7, and tensioned between the arms 43 and 44 with a jack bolt 48 via a tensioning piece 45. The position of the cutting edge of the straight blade 24 is adjusted in the longitudinal direction by the long holes of the arms 43 and 44 so that it is in the same position as the cutting edge of the round blade 25, and the position of the return limit switch L1 and the safety limit switch L2 is adjusted ( (performed by the stopper 29) is omitted to the minimum.

In addition, spring washers are interposed on the mounting bolts 46 and 47 of the straight blade 24 to elastically support the straight blade 24, and the frame 4
It is also possible to apply high frequency vibration to the straight blade 24 by a high frequency oscillator (not shown) attached to the straight blade 24. In addition, the straight blade 24 can be adjusted with shims or bolts 46, 47, etc. so as to adjust its wavy shape and the cutting angle of the straight cutting edge with respect to the long object A.
By tightening the arms 43 and 44, the direction of the elongated object A can be adjusted slightly (up to about 5 degrees left and right).

(Effects of the invention) As described above, according to the slitter of the present invention, which can have interchangeable round blades and straight blades, one slitter can cut either the round blade or the straight blade into a roll-shaped long object. It can be used depending on the material of the blade, and when using a straight blade, the cutting point can be moved appropriately to easily prevent the sharpness from becoming dull.Furthermore, the economic burden on the user can be reduced, making it practical. The effect is significant.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the slitter with interchangeable round blades and straight blades of the present invention, Fig. 2 is a partial perspective view showing the installation state of the round blade in the same embodiment, and Fig. 3
The figure is a partial perspective view showing the installed state of the straight blade in the same embodiment. 1... Slipper with interchangeable round blade and straight blade, 20
...Moving table, 24...Straight blade, 25...Round blade, 26...Spindle for round blade, 27...Rest, 27a
... Straight blade mounting seat, A ... Roll-shaped long object, a
... Winding core, G ... Guide support rod.

Claims (1)

[Scope of utility model registration request] A rotating roll-shaped long object is supported by a guide support rod inserted into the hollow winding core, and is moved toward and backward in a direction perpendicular to the guide support rod, and is set in the longitudinal direction of the guide support rod. In a slitter that cuts the long object into circular slices using a cutting blade supported on a table that moves at predetermined width intervals, a rotatable support shaft on which the round blade is removably mounted on the table. In addition, a mounting seat is provided for attaching the straight blade so that the straight blade can be freely removed and moved in the longitudinal direction of the straight blade so that the cutting edge aligns with the position near the guide support rod of the round blade when installed. A sliver with interchangeable round blades and straight blades.