JPH0111377Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention relates to a slitting blade changing device for changing the slitting blade in a slitting machine used for cutting multiple strips of steel plates, etc. .

(Prior Art) Generally, the above-mentioned slitting machine has a large number of slitting blades fitted onto two rotating main shafts alternately with spacer tubes, and cuts a steel plate or the like in multiple strips using the large number of slitting blades on the two shafts. .

The slitter blade and spacer tube need to be replaced with another one when changing the width and thickness of the cut plate or when the slitter blade becomes worn.

Although such blade replacement work is an important job, conventionally, each of the slitter blades and spacer tubes are individually taken out from the rotating main shaft of the slitter machine and inserted individually.

(Problems to be solved by the invention) In the past, a large number of slitting blades and spacer tubes were handled individually by hand, which required heavy labor, a lot of working time, and skill.
There is a risk that the slitting blades and spacer tubes may be placed out of order. Additionally, there is a risk of dropping the slitting blade underfoot during work, which is unsafe.

An object of the present invention is to provide a slitter blade changing device that allows the slitter blade to be replaced easily, quickly and safely.

[Structure of the idea]

(Means for Solving the Problems) The slitter blade changing device of the present invention comprises a large number of slitter blades 4 with key grooves, spacer tubes 5 with key grooves and spacer tubes 5 with key grooves and a large number of slitter blades 4 with key grooves fitted onto two rotating main shafts 2 and 3 with keys. It is located near the slitting machine that cuts sheet materials into multiple strips. It is used when replacing the series of slitter blades 4 and spacer tubes 5.

This slitting blade changing device has an inner tube shaft 22 erected on a fixed base 21, and an elevator shaft 23 is fitted to the outer peripheral surface of the inner tube shaft 22 so as to be able to move up and down.
The upper and lower outer tube shafts 24 and 25 are independently rotatably fitted to the upper and lower portions of the outer circumferential surfaces of the upper and lower outer tube shafts 2 and 2, respectively.
5 and four keyed horizontal shafts 31, 32, 33, which can face the two rotating main shafts 2, 3 of the slitting machine.
34 are provided in sets of two.

Furthermore, the two upper horizontal shafts 31 and 32 are at a height opposite to the two rotating main shafts 2 and 3, and the lower two horizontal shafts 33 and 34 are opposite to the two rotating main shafts 2 and 3. An elevating drive mechanism 42 is provided for elevating and lowering the elevating tube shaft 23 between opposing height positions.

Between the key 54 on the opposing horizontal axis and the key 55 on the rotating main shaft, a transfer key 51 for guiding the series of slitter blades 4 and the slide between the two opposing axes of the spacer tube 5 is detachably attached. It is fitted.

(Function) The present invention consists of a series of slitter blades 4 and a spacer tube 5 fitted on the two rotating main shafts 2 and 3.
For example, when replacing the upper two horizontal shafts 3
1, 32 and two rotating main shafts 2, 3 are made to face each other,
The above-mentioned delivery key 5 is located between the keys 54 and 55 of each axis.
1, and transfer this delivery key 5 from the rotating main shafts 2 and 3.
The series of slitter blades 4 and spacer tube 5 are slid onto the horizontal shafts 31 and 32 through the slitter 1 and taken out.

Then, the delivery key 51 is removed, the elevator shaft 23 is raised by the elevator drive mechanism 42, and the two lower horizontal shafts 33, 34 are opposed to the two rotating main shafts 2, 3; The delivery key 51 is fitted between the keys of each shaft, and the new slitting blade 4a and spacer tube 5a that have been fitted in advance to the lower horizontal shafts 33, 34 are attached to the delivery key 51.
1 into the rotating main shafts 2 and 3. after that,
Remove the delivery key 51.

The upper or lower horizontal shafts 31, 32 or 33, 34 can be rotated together with the outer tube shafts 24, 25, respectively. When removing used slitting blades and spacer tubes from the horizontal shaft, the above work can be carried out by swinging the horizontal shaft to remove it from the slitting machine and rotating the upper and lower stages separately. can.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

Reference numeral 1 denotes a slitter body in a slitting machine, and a large number of slitter blades 4 with key grooves and spacer tubes 5 with key grooves are alternately fitted to two upper and lower keyed rotating main shafts 2 and 3 provided on this slitter body 1. Then, the upper and lower slitter blades 4 cut the steel plate into multiple strips.

When the slitting machine is in operation, the shaft ends of the two rotating main shafts 2 and 3 are rotatably held by a bearing stand 11 provided on the slitting main body 1. On the other hand, when replacing the slitting blade, this bearing stand 11
, the X direction feed screw 1 along the X direction guide 12
3 to pull it out from the rotating main shafts 2 and 3, and
The slitter blade is moved along the direction guide 14 by the Y direction feed screw 15 to a location where it does not become an obstacle to replacing the slitter blade.

The slitter blade changing device according to the present invention is installed near the slitter main body 1 and used when exchanging the series of slitter blades 4 and spacer tubes 5.

This slitting blade changing device has three
An inner tube shaft 22 located at the center of the heavy tube shaft is fixedly erected, and an elevator shaft 23 is fitted to the outer circumferential surface of the inner tube shaft 22 so as to be able to rise and fall freely. At the bottom, upper and lower outer tube shafts 24,
25 are fitted by thrust ball bearings 26 at three locations so that they can each rotate independently, and secured with nuts. These upper and lower outer tube shafts 24, 25
moves up and down together with the elevator shaft 23.

Further, the two rotating main shafts 2 and 3 of the slitting machine are connected to the upper outer tube shaft 24 and the lower outer tube shaft 25 via respective horizontal shaft mounting seats 27 and 28.
4 keyed horizontal shafts 31, 32,
33 and 34 are provided in sets of two each.

Furthermore, the two horizontal shafts 3 with keys on the upper row
1 and 32 are located at a height opposite to the two rotating main shafts 2 and 3, and the two lower horizontal shafts 33 and 34 have keys.
An elevating drive mechanism is provided for elevating and lowering the elevating tube shaft 23 between a height position facing the two rotating main shafts 2 and 3.

In this elevating drive mechanism, a base end of a fluid pressure cylinder 42 is pivotally supported on a mounting member 41 on the fixed base 21 inside the inner tube shaft 22, and a slider 44 is attached to the distal end of a piston rod 43 of the cylinder 42. The slider 44 is screwed to the upper end of the elevator shaft 23. The slider 44 is fitted into a guide groove 45 provided in the upper part of the inner tube shaft 22 so as to be movable up and down, and moves up and down along the guide groove 45 .

And the above-mentioned opposing horizontal shafts 31, 3 with keys.
A delivery key 51 is continuously fitted between the key 54 of No. 2, 33 or 34 and the key 55 of the rotating main shaft 2 or 3 when replacing the slitter blade. This delivery key 5
1 fits into the key grooves of the series of slitter blades 4 and spacer tubes 5 when replacing the slitter blades, and guides the interaxial sliding of these slitter blades 4 and spacer tubes 5. This delivery key 51 is connected to the horizontal axis 3
Key receiving metal fitting 5 supported on the shaft end portions 1 to 34
2 and a key receiving metal fitting 53 supported on the shaft ends of the rotating main shafts 2 and 3.

Next, the operation of this embodiment will be explained.

When replacing the series of slitting blades 4 and spacer tubes 5 fitted to the two rotating main shafts 2 and 3, first, as described above, remove the bearing stand 11 from the two rotating main shafts 2 and 3. and move it to the evacuation position.

Then, as shown in the figure, the upper two keyed horizontal shafts 31 and 32 are made to face the two rotating main shafts 2 and 3, and the upper keyed horizontal shaft 31
A delivery key 51 is suspended continuously between the ends of the upper rotating main shaft 2 via the key receiving metal fittings 52 and 53, and the keys 54 and 55 of each shaft.

Then, the series of old slitter blades 4 and spacer tubes 5 are manually slid and delivered from the rotating main shaft 2 to the keyed horizontal shaft 31 via the delivery key 51.

Similarly, the delivery key 51 is suspended between the ends of the lower horizontal shaft 32 and the rotating main shaft 3 in the upper stage, and the slitting blade etc. provided on the lower main shaft 3 is delivered to the horizontal shaft 32.

Then, once the delivery key 51 is removed, the elevator shaft 23 is raised by the cylinder 42, and the lower two keyed horizontal shafts 33, 34 are opposed to the two rotating main shafts 2, 3. Insert the new slitting blade 4a and spacer tube 5a, which have been previously fitted onto the keyed horizontal shafts 33, 34, into the rotating main shafts 2, 3 using the delivery key 51 in the reverse manner of the above-mentioned unloading. do.

In this way, after replacing the slitter blade, the key receiving metal fitting 53 is removed from the end of the rotating main shaft, and the bearing stand 11 is returned to its normal position.

Above upper or lower horizontal shaft with key 31, 3
2 or 33, 34 are each manually,
Since it can swing in any direction of 360 degrees, the new slitting blade 4a can be installed on the keyed horizontal shafts 33 and 34.
When storing the slitter blades 4 and spacer tubes 5a together in advance, or when taking out the used slitter blades 4 and spacer tubes 5 from the keyed horizontal shafts 31 and 32, the pair of keyed horizontal shafts are It rotates around the lift tube shaft 23 together with the outer tube shaft 24 or 25 so as to be retracted from the slitter main body 1, and at a position with sufficient space is used for filling and rearranging spare blades for the secondary process and for replacing worn blades. Make sure to take out the items in advance.

[Effect of idea]

According to the present invention, two sets of horizontal shafts (upper and lower) are provided so that they can be raised and lowered and rotated freely, and a delivery key is removably fitted between the key of the horizontal shaft and the key of the rotating main shaft of the slitting machine. Therefore, rotate one set of horizontal shafts to the position where they are retracted from the slitting machine.
The slitter blades to be used next are stored in advance on this horizontal shaft, and following the removal of the old slitter blades from the rotating main shaft to the other set of horizontal shafts, the horizontal shaft of one set is raised, lowered, and rotated. The next slitting blade can be immediately inserted from this horizontal axis into the rotating main shaft via the above-mentioned delivery key, and even an ordinary worker can easily replace the slitting blade in a short time. be able to. In addition, since the slitting blade mentioned above is replaced through the delivery key,
You don't have to worry about the sliving blades falling under your feet, and there's no risk of them getting out of order.

[Brief explanation of the drawing]

The figure is a sectional view showing an embodiment of the slitter blade changing device of the present invention. 2, 3... Rotating main shaft, 4, 4a... Slipper blade, 5, 5a... Spacer tube, 21... Fixing base,
22... Inner tube shaft, 23... Lifting tube shaft, 24, 25
... Outer tube shaft, 31, 32, 33, 34 ... Horizontal axis, 42 ... Fluid pressure cylinder of lifting drive mechanism, 5
1... Delivery key, 54, 55... Key.

Claims (1)

[Scope of utility model registration request] The above-mentioned series of slitter blades and spacer tubes is located near a slitting machine that cuts a plate-like material in multiple strips using a large number of slitter blades with key grooves fitted alternately with spacer tubes with key grooves on two rotating main shafts with keys. This is a slitting blade changing device used when replacing a slitter blade, in which an inner tube shaft is set upright on a fixed base, an elevator shaft is fitted to the outer circumferential surface of this inner tube shaft so that it can be raised and lowered, and this elevator shaft The upper and lower outer tube shafts are independently rotatably fitted to the upper and lower parts of the outer peripheral surface of the
The upper outer tube shaft and the lower outer tube shaft are each provided with a set of four keyed horizontal shafts that can face the two keyed rotating main shafts of the slitting machine, and the upper two an elevating drive mechanism that raises and lowers the elevator shaft between a height position where the horizontal axis of the bottom tier faces the two rotating main shafts and a height position where the two lower horizontal axes face the two rotating main shafts; A delivery key for guiding slides between the series of slitter blades and spacer tubes between the opposing axes is removably fitted between the key on the opposing horizontal shaft and the key on the rotating main shaft. Slitter blade changing device.