JPS643668Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a slitter for cutting long roll-shaped objects, and in particular, the cutting blade is adjusted appropriately for each number of cuts while cutting a roll-shaped long object into round slices. The present invention relates to a slitter equipped with a grinding wheel operating means for grinding.

(Prior art) When cutting a large number of small-width laser tapes from conventionally large-width rolls of laser cloth, the cutting blade must cut the tightly wound laser cloth and the hard core into rounds. The sharpness of the blade deteriorated relatively quickly, and in order to restore the sharpness, correction polishing was carried out as needed by holding the whetstone by hand. Also, even when cutting tape from cotton cloth, which is relatively easy to cut, the cutting blade becomes dull and the cut ends become dull, so correction grinding is carried out using a whetstone by hand. .

(Problem that the invention aims to solve) When performing correction polishing to restore the sharpness of the cutting blade, the cutting machine is rotated by leaning out while holding the whetstone in hand and moving back and forth or moving across the width. Because it was placed against the cutting edge of the blade, there was a safety issue during work.

The present invention was developed in view of the above-mentioned problems, and it performs corrective polishing to safely and automatically restore the sharpness of the cutting blade by polishing and removing burrs so as not to distort the cutting blade. It is equipped with a polishing means that can remove fine particles from the whetstone so as not to adversely affect the finish of the cut end, and when a polishing command is issued, the polishing operation is carried out after the cutting blade starts to move back for the next cutting operation. To provide a slitter for cutting a roll-shaped long object in which the cutting operation is completed before the width dimension movement for the next cutting operation is completed, and the polishing operation does not interfere with the cutting operation.

(Means for solving problems) This idea will be explained below using the drawings.

FIG. 3 is a plan view of the grindstone operating mechanism of the slitter for cutting roll-shaped long objects of the present invention. In Fig. 3, the slitter SL for cutting roll-shaped long objects of the present invention fixes a roll-shaped long object A wound on a winding core a such as a paper tube to a rotary gripping tool C such as a chuck. While rotationally driving the long object A, the drive mechanism D1 is moved in the cutting direction perpendicular to the longitudinal axis of the long object A.
The cutting blade 1 is reciprocated by the cutting blade 1 and moved in the longitudinal direction by a set width dimension to cut into circular slices, and the polishing execution setting device presets the number of cuts that require polishing of the cutting blade 1. The slitter SL is a slitter SL that is polished by a Jizuka polishing means that is controlled by an ST, and the polishing means approaches the cutting blade 1 from both sides via a grindstone operating mechanism D2 and polishes the cutting blade 1 with a large rotary whetstone 2a; Burr removal small grindstone 2b and cutting blade 1
The grindstone particle removal cleaner SW is in contact with the grindstone particle removal cleaner SW, and the grindstone operating mechanism D2 is connected to the polishing execution setting device ST.
In addition to the polishing input signal from the cutting blade 1, the polishing operation is started by receiving an output signal from the switch L1 for starting the backward motion of the cutting blade 1. It is characterized by

(Function) The slitter SL according to the present invention is a rotary gripping tool C having a chuck function, for example, by horizontally passing through a roll-shaped long object A wound on a winding core a with a guide support rod G. to fix it and drive it to rotate.
The drive mechanism D1 reciprocates the cutting blade 1 in the cutting direction of the long object A to cut it into small pieces, and also moves the cutting blade 1 in the longitudinal direction up to a set width with each reciprocating movement. The grinding wheel operating mechanism D2 inputs a backward movement start signal from the backward movement start limit switch L1 and a polishing execution signal from the polishing execution setting device ST during the movement of the cutting blade 1 from the start of the backward movement to the completion of the width dimension movement. Then, the grindstones 2a and 2b are applied to the blade 1 to perform correction polishing until a width movement completion signal or a predetermined time elapsed signal (not exceeding the time until the width movement is completed) from a timer is received. The fine particles of the grindstone adhering to the cutting blade 1 are removed by the grindstone particle removal cleaner SW, so that they do not adversely affect the finish of the cut end of the roll-shaped long article A.

(Example) The present invention will be explained below with reference to an example shown in the drawings.

Fig. 1 is a perspective view showing a slitter for cutting roll-shaped long objects according to the present invention, Fig. 2 is a perspective view of the main parts of the grindstone operating mechanism, and Fig. 3 is a perspective view of the main parts of the grindstone action mechanism. FIG.

In FIGS. 1 to 3, the slitter SL for cutting roll-shaped long objects of the present invention rotates a roll-shaped long object A with a large width wound on a winding core a made of a paper tube. It is gripped by a gripping tool C and cut into rounds with a rotating cutting blade 1 to a small set width while being rotated. It is rotatably supported on a reciprocating table t so that it can be moved close to a guide support rod G having a D-shaped cross section to a distance that allows the winding core to be sliced, and then separated and returned to a predetermined position. It is characterized by having a grindstone operating mechanism D2 that grinds the round cutting blade 1, which is rotationally driven by a suspended motor M, from the start of return to the completion of width movement.

The roll-shaped long article A has a hollow part of its core a,
After removing the strut g and inserting the guide support rod G, the strut g is restored and supported in a horizontal state, and the motor case B
It is rotated by being locked to a rotary gripping tool C that is rotationally driven by a rotational drive source such as a motor installed inside.

The cutting blade 1 is moved in a direction perpendicular to the guide support rod G by a reciprocating drive means d1 forming the drive mechanism D1 so that the cutting edge enters the D-shaped cut portion thereof, and then moved to a predetermined position. After returning to the slitter, move the control panel along the long object A in the longitudinal direction of the slitter.
It is rotatably supported on a table t which is moved in width by a longitudinal drive means d2 of a drive mechanism D1 by a preset cutting width dimension on the CB,
It is rotationally driven by a motor M on a stand suspended from the table t. The reciprocating drive means d1 includes a nut n1 fixed to the lower surface of the table T, a ball screw S1 screwed to the nut and pivotally supported in the transverse direction on the longitudinal movement table T, and a ball screw S1 directly connected to the ball screw to move the ball screw. Reversible motor m1 installed on stand T
It is composed of. Longitudinal drive means d2
is a nut n2 fixed to the longitudinal moving table T.
, a ball screw S2 screwed into the nut and pivotally supported by the machine base F in the longitudinal direction, and a rotational drive source m2 in the motor case B that reversibly drives this ball screw.

The grindstone operating mechanism D2 is reciprocated between a polishing operating position and a non-operating position by a reciprocating working fluid cylinder 11 such as an air cylinder, and is mounted on a sliding table 12 whose position can be finely adjusted with respect to the machine base F. A bowl-shaped grindstone 2a fixed to the rotating shaft of the installed motor 13
and a rack 16 which is reciprocated by a reciprocating working fluid cylinder 15 such as an air cylinder.
A rod-shaped rod is held by a rocking table 18 supported by an arm 19 from the machine base so as to be able to finely adjust its position so as to be able to slide between a polishing operation position and a non-operation position by a pinion 17 that engages with and rotates. The grindstone 2b, a switching valve SV such as a solenoid valve that controls the supply of pressurized fluid such as compressed air to the working fluid cylinders 11 and 15, and a switch for starting double action such as a limit switch that starts the double action of the cutting blade 1. Double-acting signal from L1 and control panel
Upon receiving the polishing execution signal from the polishing execution setting device ST in the CB, the switching valve SV is conducted in the operating direction of the grinding wheels 2a and 2b, and the width dimension movement is processed by the electronic counter in the control panel CB. It is comprised of a control means such as a counter that conducts in the non-operating direction of the grindstones 2a and 2b upon receiving the width dimension movement completion signal from the completion transmitter TD. The bowl-shaped grindstone 2a is connected to the motor 1
3, the blade 1 is polished in a very short time, and the bar-shaped grindstone 2b functions to remove burrs caused by polishing. The amount of polishing of the blade 1 is finely adjusted by a position adjusting screw 20 which is screwed onto the slide table 12 and whose tip abuts against a protrusion t1 on the table t, and its return movement is limited by a stopper 21. has been done. The position of the bar-shaped grindstone 2b relative to the blade 1 is finely adjusted by loosening the hexagon socket head screw 22. In addition to the above, the width dimension movement completion signal can also be a predetermined time elapsed signal of a timer activated by the backward movement start signal and the polishing execution signal from the backward movement start switch L1. Further, a cleaner SW having a felt attached to the tip to remove fine particles of the grindstone attached to the blade is installed on the near side where the long object A is to be cut.

(Effects of the invention) As described above, according to the slitter SL for cutting roll-shaped long objects of the invention, the polishing setting device ST
Correction polishing to restore the sharpness of the cutting blade 1 is performed by the grindstone operating mechanism D2 every time the number of rings set is set to , instead of manually, at least from the start of the backward movement to the completion of the width movement. The safety in use of the slitter can be greatly improved, and its practical effects are remarkable.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a slitter for cutting roll-shaped long objects according to the present invention, Fig. 2 is a perspective view of the main parts of the grindstone operating mechanism, and Fig. 3 is a perspective view of the main parts of the grindstone action mechanism. FIG. Explanation of symbols, 1... Cutting blade, 2a, 2b... Grindstone, A... Roll-shaped long object, a... Winding core, C...
... Rotating gripping tool, D1... Cutting blade movement drive mechanism,
D2... Grindstone operating mechanism, G... Guide support rod, L1
...Return start switch, SL...slitter,
ST... Polishing setting device, SW... Grinding wheel particle removal cleaner.

Claims (1)

[Scope of utility model registration request] A drive mechanism D1 is moved in the cutting direction of the long object A while the roll-shaped long object A wound on the winding core a is penetrated by a guide support rod G, fixed by a rotary gripping tool C, and rotated. The cutting blade 1 is reciprocated by the cutting blade 1 and moved in the longitudinal direction by a set width dimension to cut into circular slices, and the cutting blade 1 is cut in a preset number of cuts that require polishing. In the slitter SL, which is polished by an automatic polishing means controlled by a machine ST, the polishing means approaches the cutting blade 1 from both sides via a grindstone actuating mechanism D2,
It has a rotating large grindstone 2a and a small burr removal grindstone 2b for polishing, and a cleaner SW for removing grindstone particles that comes into contact with the cutting blade 1, and the grindstone operating mechanism D2 further cuts in response to the polishing input signal from the polishing execution setting device ST. A slitter for cutting a roll-shaped long object, characterized in that the polishing operation starts upon receiving an output signal from a switch L1 for starting the backward movement of the blade 1, and finishes the polishing operation by the time the width dimension movement is completed.