JPH0375319B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a slitter machine that cuts wide roll paper or other sheet materials into narrow widths, and the present invention relates to a slitter machine that cuts wide roll paper or other sheet-like materials into narrow widths. It pertains to a device for fixing.

[Prior art and problems to be solved by the invention]

Slitter machines, especially those that cut paper, resin films, etc., use rollers to guide a wide roll-shaped material while sequentially unwinding it, and cut between a pair of cutting blades consisting of an upper blade and a lower blade. There is one that is passed through, cut into narrow pieces, and then wound up again.

For such items, the most primitive method for changing the cutting width of roll paper, etc. is to operate the cutting blades one by one by hand, but the cutting blades are extremely sharp, so there is a risk of injury. It is expensive and difficult to operate. As an improvement to this, in recent years, an electromagnetic clutch or motor is attached to each moving table equipped with a cutting blade, and the electromagnetic clutch is turned on and off one by one, and the motor is controlled by a magnetic scale. be. However, with such a device, electricity or air must be supplied to each mobile platform,
Not only does this complicate the structure, but when a motor is attached, the width of the moving table must be at least as wide as the motor, which makes it difficult to arrange the cutting blades at narrow intervals. On the other hand, with a movable table, it is necessary to change the fixing positions of the upper and lower blades depending on the cutting width of the roll paper, etc., and in the case of a slitter machine, accurate positioning is strongly required.

[Means for solving problems]

The present invention solves the above-mentioned drawbacks, and in stopping the upper blade or the upper blade and the lower blade at a predetermined position,
The purpose is to enable more accurate positioning, and in order to achieve this purpose, only the upper blade 1 is attached to the upper blade holder 2, and this upper blade holder 2
A locking cam is attached to a pair of left and right shafts 6a, 6a rotatably attached to the upper blade holder 2. 6b are both installed eccentrically, and the left and right 2 on the upper blade side
This device is equipped with a locking device that fixes the upper blade holder 2 to the shaft or rail on the upper blade side when the eccentric lock cams 6b, 6b press the shaft or rail on the upper blade side at two places on the left and right. .

Also, on the lower blade 1' side corresponding to the upper blade 1,
As in the case of the upper blade 1, it is equipped with a gripping device that grips the lower blade holder 2' and moves it to a predetermined position, and a lock cam is attached to a pair of left and right shafts 6a, 6a rotatably attached to the lower blade holder 2'. 6b are both installed eccentrically, and when the two eccentric lock cams 6b, 6b on the left and right sides on the lower blade side press the shaft or rail on the lower blade side at two places on the left and right, the lower blade holder 2' is attached to the lower blade side. It is equipped with a locking device that fixes it to the shaft or rail.

[Effect]

The upper blade holder 2 equipped with the upper blade 1 is slidably attached to the shaft or rail on the upper blade side arranged in the left-right direction in Fig. 1. A gripping device movable along is arranged. This gripping device can grip the upper blade holder 2 from both the left and right sides as shown by the solid line in Figure 4, and while maintaining this state, the
When the upper blade holder 2 is moved in the left-right direction in the figure, the upper blade holder 2 is moved along the axis or rail on the upper blade side.
It is moved by a predetermined distance in the left-right direction in the figure.
Therefore, the upper blade 1 can be moved to a predetermined position on the shaft or rail on the upper blade side. Moreover,
Two eccentric locking cams 6b, 6b on the left and right sides, which are locking devices, press the shaft or rail on the upper blade side at two places on the left and right, thereby fixing the upper blade holder 2 to the shaft or rail on the upper blade side. Thus, 1
The upper blade 1 is set at a predetermined position on the shaft or rail on the upper blade side, and its positioning can be performed extremely accurately. By performing this operation on each of the required upper blade holders 2 out of the many upper blade holders on the upper blade side shaft or rail, it is possible to set each of the required plurality of upper blades 1 in a predetermined position. . And this upper blade 1
By engaging the lower blade and passing a wide sheet-like material between them, it is possible to cut the material into narrower widths. When moving the upper blade 1 to another position, first unlock the locking device.
That is, the pressing forces of the two left and right lock cams 6b, 6b pressing the shaft or rail on the upper blade side at two positions on the left and right sides are both released. Then, the engagement between the upper blade holder 2 and the shaft or rail on the upper blade side to which it is attached is released, so the upper blade holder 2 is gripped by a pair of left and right gripping devices, and the gripping devices are attached to the upper blade holder 2. Move the upper blade holder 2 to a predetermined position by moving it along the shaft or rail on the attached upper blade side. After that, the two eccentric lock cams 6 on the left and right sides, which are lock devices,
b and 6b are activated again to fix the upper blade holder 2 to the shaft or rail on the upper blade side.

In the above case, a large number of lower blades are arranged as receiving blades on the shaft or rail on the lower blade side that is parallel to the shaft or rail on the upper blade side to which the upper blade holder 2 is attached, and any one of them The upper blade and the lower blade can be engaged by making one of the upper blades 1 correspond to the blade, but one upper blade 1
A lower blade 1' that engages with the upper blade holder 2 is attached to a lower blade holder 2' that is slidable relative to another shaft or rail arranged parallel to the shaft or rail of the upper blade holder 2, and the lower blade side shaft or rail When the lower blade holder 2' is moved together with the upper blade holder 2 by another gripping device movable along the upper blade 1 and the lower blade 1'
It is possible to move both to a predetermined position while keeping them engaged. That is, the gripping device appearing on the lower side of FIG. 1 can be the same as the one for gripping the upper blade holder 2, and thereby grips the lower blade holder 2' and removes the attached lower blade holder 2'. The gripping device is moved together with the gripping device on the upper blade holder 2 along the shaft or rail on the lower blade side, and the lower blade holder 2' is moved to the same place as the upper blade holder 2. On top of that, there are two eccentric lock cams 6b on the left and right, which are lock devices,
The lower blade holder 2' is fixed to the shaft or rail on the lower blade side by pressing the shaft or rail on the lower blade side at two places on the left and right sides. In this way, when the upper blade holder 2 and the lower blade holder 2' are moved to the same place at the same time by their respective gripping devices, the upper blade 1 and the lower blade 1' remain engaged and are moved to the predetermined position. The upper blade 1 can be moved at that position.
and the lower blade 1' can be accurately fixed.

〔Example〕

Embodiments of the present invention will be described based on the accompanying drawings.

FIG. 1 is a front view schematically showing the slitter machine of the present invention.

The upper blade 1 is rotatably attached to an upper blade holder 2. The upper blade holder 2 is slidably attached to a rail 3 arranged in the left-right direction in FIG. It may also be slidably attached to a shaft instead of the rail 3.

A shaft 4 is arranged above and parallel to this rail 3, to which a moving platform 7 with a gripping device 5 is attached. The movable table 7 is slidable along the rail 3 on the shaft 4 in the left-right direction in FIG. In the embodiment, the shaft 4 is a ball screw shaft,
A case is shown in which a moving table 7 is screwed onto this. When the shaft 4 is rotated forward or reverse by the servo motor 8,
The movable platform 7 screwed thereon moves along the rail 3 to the left or right in FIG. 1.

A gripping device 5 provided on the moving table 7 grips the upper blade holder 2 and moves it to a predetermined position. The gripping device 5 in the embodiment consists of a pair of left and right gripping arms 5b, 5b pivoted to two left and right shafts 5a, 5a, and both gripping arms 5b, 5b change from the state shown by the chain line in FIG. 4 to the state shown by the solid line in the same figure. By closing the upper blade holder 2, the upper blade holder 2 is held from both the left and right sides. In opening and closing the pair of left and right gripping arms 5b, 5b, in the embodiment, as shown in FIG. Gripping arm 5
b, 5b can be opened and closed.

Further, the upper blade holder 2 is provided with a locking device 6 for fixing it to the rail 3. This locking device 6 has a rotatable locking cam 6b attached to the upper blade holder 2 eccentrically arranged. That is, as shown in FIGS. 2 and 3, the lock cam 6b is eccentrically attached to the rear end (right end in FIG. 2) of a shaft 6a rotatably attached to the upper blade holder 2. To explain this in more detail,
As shown in FIG. 5, the lock cam 6b is eccentric with respect to the shaft 6a so that its center of rotation is O, and when a force is applied to the shaft 6a in the direction of the arrow in the figure, the lock cam 6b moves to the back side of the rail 3. (On the right side in Figure 2)
The upper surface 3a of the rail attachment beam 3b located at is pressed. In the present invention, there are two shafts 6a on the left and right in FIG.
Lock cams 6b, 6b are attached to the. In the embodiment, both of these lock cams 6b,
In order to apply a force to 6b to press the portion 3a on the back side of the rail 3, a spring shown at 10 in FIGS. 3 and 5 is provided. That is, Fig. 2, Fig. 3,
As shown in FIG. 5, members 6c, 6c are concentrically attached to the front ends (left end in FIG. 2) of the two shafts 6a, 6a, and the springs 10 are attached to both members 6c, 6c.
The end is hooked. Therefore, due to the tensile force of the spring 10, a force acts on the left member 6c to rotate it counterclockwise, and a force acts on the right side member 6c to rotate it clockwise. This force is transmitted to the two left and right shafts 6a, 6a, respectively. That is, a force in the direction of the arrow in FIG. 5 is transmitted to the two left and right shafts 6a, 6a, respectively, and the force is further transmitted to the lock cams 6b, 6b attached to the shafts 6a, 6a. However, the two left and right lock cams 6b, 6b
Since both lock cams 6b and 6b are eccentrically attached to the shaft 6a, both the lock cams 6b press the upper surface 3a of the rail attachment beam 3b located on the back side of the rail 3. In this way, the upper blade holder 2 can be fixed at a predetermined position on the rail 3. This member 6c is also used to release the locking device 6. That is, when the members 6c, 6c are forcibly rotated slightly in the opposite direction to the arrow direction of the shaft 6a against the tensile force of the spring 10, the lock cam 6b, which is eccentric with respect to the shaft 6a, is rotated. , 6b rotate slightly in the opposite direction. Therefore, until now, rail 3
The upper surface 3a of the rail attachment beam 3b located on the back side of
The pressing force of the lock cam 6b is released. In addition, as a means for forcibly rotating the two members 6c and 6c against the tensile force of the spring 10, in the embodiment, a cylinder shown by 11 in FIGS. 2, 3, and 5 is used. shows. That is, the cylinder 11 is attached to the movable table 7, and when the cylinder 11 is actuated to project the rod 11a from the position indicated by the chain line in FIG. Member 6 by force
The shafts 6a, 6c rotate slightly in the opposite direction to the arrow direction of the shafts 6a, 6a in FIG. 5 against the tensile force of the spring 10.

On the other hand, the lower blade that engages with the upper blade 1 is the upper blade holder 1.
A large number of receiving blades (for example, at intervals of 5 mm) may be arranged on another rail parallel to the rail 3 on which the receiving blades are attached, so that any of the upper blades 1 can correspond to any lower blade. However, in the present invention, as shown in FIG. 1, the lower blade 1' is attached to a lower blade holder 2' that is slidable on a rail 3' parallel to the rail 3 of the upper blade holder 2 or on a shaft, and the upper blade 1' and the lower blade 1' constitute a pair of cutting blades.
A shaft 4' is arranged below the rail 3' in exactly the same manner as on the upper blade 1 side, and a moving table 7' is attached to this shaft. The moving platform 7' also extends along the rail 3' to the shaft 4'.
The top can be slid in the left and right directions in FIG. In the embodiment, the shaft 4' is a ball screw shaft as in the case of the shaft 4, and the movable table 7' on the lower blade 1' side is screwed onto this shaft, and the shaft 4' is driven by a servo motor 8'. The fact that the movable table 7' can be moved in the left-right direction in FIG. 1 along the rail 3' by rotating forward or reverse is exactly the same as on the upper blade side. In addition, this movable base 7' includes a movable base 7 on the upper blade side.
The same gripping device 5 is attached to the lower blade holder 2', and the same locking device to the upper blade holder 2 is attached to the lower blade holder 2'. This gripping device can grip the lower blade holder 2' and move it on the rail 3', and two eccentric locking cams 6b on the left and right as locking devices,
6b can fix the lower blade holder 2' to the rail 3' by pressing the shaft or rail on the lower blade side at two places on the left and right, which is exactly the same as the case on the upper blade side, so the explanation thereof will be omitted. do.

Note that when the servo motors 8, 8' are connected to a computer and the servo motors 8, 8' are controlled thereby, the upper blade 1 is placed at a position specified by the computer.
and the lower blade 1' can be moved.

On the other hand, in the embodiment, in order to release the engagement between the upper blade 1 and the lower blade 1', the entire holder 2, rail 3, shaft 4, locking device 6, moving table 7, servo motor 8, etc. on the upper blade 1 side is used. It is designed so that it can be lifted in one piece. That is, as shown in FIG. 1, when the shaft 12 supporting the entire assembly is forcibly rotated in the direction of the arrow, the entire assembly is lifted up. For example, by driving the motor 13, the ball screw 1
Turn 4 and see Natsu 1 screwed onto it.
5 is moved to swing the lever 16 connecting this and the shaft 12. Then, the shaft 12 rotates in the direction of the arrow in FIG. 1, thereby lifting the entire blade and disengaging the upper blade 1 and the lower blade 1'. This is done when the upper blade 1 and the lower blade 1' are moved to the desired position when changing the cutting width of roll paper or the like. To engage the upper blade 1 and the lower blade 1' again, the shaft 12 is rotated in the opposite direction to return the entire blade to its old position.

In addition, in the embodiment, in order to press the upper blade 1 against the lower blade 1', a holder 2 on the upper blade 1 side, a rail 3,
Axis 4, lock device 6, moving table 7, servo motor 8
etc. can be moved slightly in the left-right direction in FIG. For example, as shown in FIG. 1, another motor 17 is driven to drive the ball screw 18.
Natsu 19 is turned and screwed onto this.
Move to the right side of Figure 1. Then, the shaft 12 is connected via the lever 20 connecting this and the shaft 12.
can be moved to the right in FIG. 1, thereby pressing the upper blade 1 against the lower blade 1'. This is when cutting a rolled material with the upper blade 1 and lower blade 1'.
This is to apply lateral pressure to the upper blade 1. Upper blade 1
To disengage the lower blade 1' from the lower blade 1', the lateral pressure of the upper blade 1 is released and then the shaft 12 is rotated in the direction of the arrow in FIG. Note that the upper blade 1 has 2 in Fig. 6.
A spring 3 is provided, and its elastic force applies lateral pressure to the upper blade 1.

Furthermore, in this embodiment, the movable tables 7 and 7' including the gripping device 5 are moved around the shafts 4 and 4' to the second position.
It is designed so that it can be tilted from the state shown in the figure as shown in FIG. 7 and returned to its original normal state (the state shown in FIG. 2). This is because when the gripping device 5 grips either the upper blade holder 2 or the lower blade holder 2' on the rail 3 or 3', the upper blade side moving table 7 or the lower blade side moving table 7 ’ as the seventh
The purpose is to move them to a predetermined position while keeping them tilted as shown in the figure, and return them to their normal positions when they reach that position. In order to make this possible, in this embodiment, as shown in FIG. Mounting beams 24a, 24
Place a′. The upper blade side movable base 7 is attached to the rail 24 attached to the upper blade side rail attachment beam 24a.
, the lower blade side movable base 7' is engaged with the rail 24' attached to the lower blade side rail attachment beam 24a'. To explain the movable table 7 on the upper blade side in more detail, a rail 24 is provided above the shaft 4 as shown in FIG.
and the rail mounting beam 24a are located, and this rail 2
4 is engaged with the upper part of the movable table 7 to prevent the movable table 7 from accidentally turning on the shaft 4 when moving on the shaft 4. On the other hand, in the case of the moving table 7' on the lower blade side, it is the same as the case on the upper blade side except that the vertical positional relationship is opposite to that on the upper blade side, so it is not shown in the figure, but it is located below the rail 3'. A rail 24' is located below the shaft 4', and in the same way that the upper blade side movable table 7 engages with the upper blade side rail 24, the lower blade side The lower part of the moving table 7' is engaged.

A pair of left and right frames 21, 21, 21', 21' supporting the shafts 4 and 4' can be swung by air cylinders 22, 22'. When the pair of left and right frames 21, 21 are swung by the operation of the air cylinder 22, the rail attachment beam 24a, which is arranged to straddle both the frames 21, 21, the rail 24 attached to this, As shown in FIG.
1 and 21, it can be tilted about the axis 4, or it can be returned to its normal state (the state shown in FIG. 2). On the other hand, when the pair of left and right frames 21', 21' are swung by the operation of the air cylinder 22', the movable table 7' including the gripping device 5 is pivoted as in the case of the upper frames 21, 21. It can be tilted around 4' or returned to its normal position. In this way, the pair of left and right frames 21,
By swinging 21, 21', 21', the movable tables 7, 7' including the gripping device 5 can be tilted about the shafts 4, 4' or returned to their original normal positions.

Next, the operation of the slitter machine having the above configuration will be explained.

Under normal operating conditions, as shown in Fig. 1, an object to be cut, such as a roll of paper, passes between the upper blade 1 and lower blade 1' which are engaged, and is cut into narrow pieces. .

When changing the cutting width of roll paper, etc.,
First, the shaft 12 is moved slightly to the left in FIG. 1 by the motor 17 to release the lateral pressure on the upper blade 1. Then, the motor 13 rotates the shaft 12 in the direction of the arrow in FIG. and the lower blade 1' are disengaged.

Then, the air cylinder 21 is operated to rotate the movable table 7 on the upper blade 1 side including the gripping device 5 about the shaft 4 (tilt it from the state shown in FIG. 2 to the state shown in FIG. 7), and Activate the cylinder 11, push the members 6c, 6c of the lock device 6 with the rod 11a, and turn the two lock cams 6b, 6b in the direction opposite to the arrow direction of the shaft 6a in FIG. Rail mounting beam 3b located
The lock state with the upper surface 3a is released. Thereafter, the servo motor 8 is driven to move the movable table 7 to the upper blade holder 2 to be gripped. Then,
The cylinder 21 is operated again and the moving table 7 is moved to the seventh position.
Return from the state shown in the figure to the original position (solid line in Figure 2). Then, the cylinder 9 is actuated to open the left and right pair of gripping arms 5b, 5b of the gripping device 5 as shown by the chain lines in FIG. Close as shown in the solid line.
Then, the upper blade holder 2 is gripped by the tips of the pair of left and right gripping arms 5b, 5b. Next, when the servo motor 8 is activated and the shaft 4 is rotated, the moving table 7 screwed thereon moves to either the left or right direction in FIG. 1, and the upper blade holder 2 should be changed. Move it to the specified position. Therefore, cylinder 1
1 again to retract the rod 11a,
The two locking cams 6b of the locking device 6 are springs 10.
Due to the tensile force, the shaft 6a rotates slightly in the direction of the arrow, and presses the upper surface 3a of the rail attachment beam 3b located on the back side of the rail 3 (on the right side in FIG. 2). In this way, the upper blade holder 2 that has been moved to the predetermined position to be changed is fixed at that position and can be made to correspond to any lower blade. By performing the same operation as described above for other upper blade holders 2 on the rail 3, they can be moved to predetermined positions to be changed. That is, when moving a plurality of upper blade holders 2, one gripping device is prepared, and with this, all the upper blade holders 2 are moved.
can be moved, and each upper blade 1 can be made to correspond to an arbitrary lower blade.

On the other hand, if the same devices as the upper blade 1 are provided on the lower blade 1' side, the upper blade 1 will also be installed on the lower blade 1' side.
Perform almost the same operation as the side. The operations on the lower blade 1' side are different from those on the upper blade 1 side, such as not lifting the entire holder 2, rail 3, shaft 4, movable table 7, servo motor 8, etc. on the upper blade 1 side. Blade 1
The only thing to do is to move the shaft 12 slightly to the right in FIG. 1 in order to apply lateral pressure to the upper blade 1, and the other operations are exactly the same as those for the upper blade 1 side. Thereby, the lower blade holder 2' is moved to a predetermined position to be changed and is fixed in that position by the locking device 6. In this case, the upper blade 1 side and the lower blade 1' side may be operated separately, but the upper blade 1 side and lower blade 1' side may be operated separately.
It is also possible to operate the upper blade 1 side and the lower blade 1' side simultaneously with the entire side lowered to its original state. In this way, it is possible to move the upper blade 1 and the lower blade 1' to the desired position while keeping them engaged. In addition, when applying lateral pressure to the upper blade 1,
The nut 19 screwed onto the ball screw 18 is moved slightly to the right in FIG. 1 by driving the motor 17, and the shaft 12 is moved slightly to the right in FIG. 1 via the lever 20. Then, lateral pressure is applied to the upper blade 1 by the elastic force of the spring 23 (FIG. 6) of the upper blade 1.

〔Effect of the invention〕

According to the invention described in claim 1, when the upper blade holder 2 and the upper blade 1 are moved to a predetermined position and stopped at that position, more accurate positioning is possible.

Further, according to the invention described in claim 2, when moving the upper blade 1 and the lower blade 1' while being engaged to a predetermined position to be changed and stopping at that position, This has the effect of allowing more accurate positioning.

[Brief explanation of drawings]

The attached drawings show an embodiment of the present invention, and FIG. 1 is a schematic front view of the case where moving means are arranged on the upper blade side and the lower blade side, and FIG. 2 is a schematic front view of the upper blade in that case. An enlarged side view of a portion of the side, Figure 3, is
FIG. 4 is a partially longitudinal front view showing the state in which the upper blade holder is gripped by the gripping device, and FIG. FIG. 6 is a front view showing a state in which the upper blade and lower blade are engaged, and FIG. 7 is an enlarged side view showing a state in which the movable table including the gripping device is tilted together with the frame and the like. 1...Upper blade, 1'...Lower blade, 2...Upper blade holder, 2'...Lower blade holder, 3, 3'...Rail,
4, 4'... shaft, 5... gripping device, 6... locking device.

Claims (1)

[Claims] 1. An upper blade holder 2 equipped with an upper blade 1 is slidably attached to a shaft or rail on the upper blade side arranged in the left-right direction, and when the upper blade 1 is used, the upper blade holder 2 is fixed at a predetermined position on the shaft or rail on the upper blade side, the upper blade 1 and the lower blade are engaged, and a wide sheet-like object is passed between the upper blade 1 and the lower blade to form a thin A slitting machine for cutting into widths is equipped with a gripping device that is movable along the shaft or rail on the upper blade side and that grips the upper blade holder 2 and moves it to a predetermined position, and also has a A pair of left and right shafts 6a mounted movably,
The lock cams 6b are mounted eccentrically on the upper blade 6a, and when the two eccentric lock cams 6b, 6b on the upper blade side press the shaft or rail on the upper blade side at two places on the left and right, the upper blade holder 2 is attached to the upper blade. A cutting blade moving device for a slitter machine, characterized by being equipped with a locking device for fixing to a side shaft or rail. 2 The upper blade holder 2 equipped with the upper blade 1 is slidably attached to the shaft or rail on the upper blade side arranged in the left-right direction, and when the upper blade 1 is used, the upper blade holder 2 is attached to the shaft or rail on the upper blade side. Alternatively, it is fixed at a predetermined position on the rail, the upper blade 1 and the lower blade 1' are engaged, and a wide sheet-like object is passed between the upper blade 1 and the lower blade 1' to make it narrower. The slitter machine for cutting is equipped with a gripping device for gripping the upper blade holder 2 and moving it to a predetermined position, and a pair of left and right shafts 6 rotatably attached to the upper blade holder 2.
The lock cams 6b are mounted eccentrically on the upper blade side a, 6a, and when the two eccentric lock cams 6b, 6b on the left and right sides on the upper blade side press the shaft or rail on the upper blade side at two places on the left and right, the upper blade holder 2 is A lower blade 1' that engages with the upper blade 1 is provided with a locking device to be fixed to the shaft or rail on the upper blade side.
The lower blade holder 2' is slidably attached to the shaft or rail on the lower blade side, which is arranged parallel to the shaft or rail on the upper blade side, and is movable along the shaft or rail on the lower blade side. It is equipped with a gripping device for gripping and moving the lower blade holder 2' to a predetermined position, and a lock cam 6b is eccentrically attached to a pair of left and right shafts 6a, 6a rotatably attached to the lower blade holder 2'. Installed with two eccentric lock cams 6 on the left and right sides on the lower blade side.
A slitter machine characterized in that b and 6b are equipped with a locking device that fixes the lower blade holder 2' to the shaft or rail on the lower blade side when the shaft or rail on the lower blade side is pressed at two places on the left and right. Cutting blade moving device.