JPH0116663B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a tool positioning device for cutting a sheet-like material such as a corrugated cardboard sheet in its running direction or for forming ruled lines thereon.

[Conventional technology]

A corrugator machine for manufacturing corrugated sheets is equipped with a plurality of slitters and a plurality of scorers arranged in the width direction of the sheet. It is designed to include a number of ruled lines.

Since the positions of such slivers and scorers need to be changed depending on the width of the corrugated sheet to be formed, they are supported so that their positions can be adjusted in the width direction of the corrugated sheet, and each can be adjusted independently. There is.

A conventional technique for positioning devices for slivers and scorers (hereinafter referred to as tools) is disclosed, for example, in Japanese Patent Publication No. 57-34091 by the same applicant.

The tool positioning device disclosed in the above publication is
A plurality of holders equipped with tools are slidably fitted on the outside of a rotating shaft, and a shifter is removably provided in a holder groove formed in the circumferential direction of each holder.
The shifter is engaged with the holder groove, and the position of the tool is adjusted by moving the shifter along the rotation axis.

[Problem that the invention attempts to solve]

By the way, as mentioned above, in the tool positioning device using shifters, in addition to the tool rotation drive device, there is also a moving device that moves each shifter independently parallel to the rotation axis and a holder that moves all the shifters. A moving device is required to move the device to a position where it fits into the holder groove, which is disadvantageous in that the device becomes complicated and large.

In addition, the shifter is placed in a position that does not interfere with the movement of the cardboard sheet, so when adjusting the tool position, it is necessary to move the tool in the opposite direction to the shifter installation position. There are also disadvantages in that the support structure becomes complicated and a device for moving the rotation axis must be provided.

Furthermore, if the conventional positioning device has a configuration in which multiple tool holders are fitted onto a single rotating shaft that is rotatably supported by a side frame, the tool must be split into two pieces. If the tool cannot be replaced,
Since it is necessary to maintain an appropriate mutual positional relationship, it is very time-consuming to attach the tools to the holder, and there is a disadvantage that it is difficult to obtain dimensional accuracy of the tools themselves.

Therefore, the present invention solves the above-mentioned disadvantages and simplifies the configuration by using a single motor to rotate a tool for processing sheet-like materials such as corrugated cardboard sheets and to position the tool. The technical problem is to be able to accurately adjust the positions of multiple tools in a very short time.

[Means for solving problems]

In order to solve the above problems, the present invention provides a horizontal guide member that extends long in a direction perpendicular to the running direction of the sheet-like object, and cuts or scores the sheet-like object along the running direction. A plurality of tool units equipped with tools for machining are mounted so that their positions can be adjusted along the guide member, and a member for position adjustment extending in the parallel direction of the tool units is provided, and the tool units are attached to the guide member. a support plate slidably provided along the support plate; a rotating body rotatably attached to the support plate and engaged with the position adjustment member; and a tool support holder rotatably attached to the support plate. and a single drive motor which is attached to the support plate and rotates the holder during cutting or creasing, and rotates the rotating body when adjusting the position of the tool unit.

[Effect]

As mentioned above, by attaching the support plate constituting the tool unit so that it can slide along the guide member, and providing the support plate with the motor, the holder and the rotating body that are rotationally driven by the motor,
When the motor is driven to rotate the rotating body, the tool unit moves along the guide member due to the engagement between the rotating body and the position adjustment member, and the position of the tool can be adjusted as desired. can. Further, by rotating the tool supporting holder with the motor, the sheet-like object can be cut or scored in the running direction by rotating the tool supported by the holder.

〔Example〕

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in Figures 1 to 3, two rails 4, 4 having guide grooves 3 on both sides are laid in parallel on the upper surface of a horizontal slide beam 2 whose end is supported by the side frame 1 of the machine. A tool unit 10 is provided along the rail 4 so that its position can be adjusted.

In the embodiment shown in FIGS. 1 to 3, one tool unit 10 is shown, but in reality, a fourth tool unit 10 is shown.
As shown in the figure, a plurality of tool units 10 are arranged in parallel so that their positions can be adjusted individually.

The tool unit 10 described above includes a support plate 11, and a pair of linear bearings 12, 12 for supporting the rail 4 are attached to the lower part of the support plate 11. A shaft 14 of a tool holder 13 is rotatably supported on the upper part of the support plate 11, and a circular tool 15 is detachably attached to the tool holder 13 by means such as bolting.

Further, a nut 16, which is a rotating body, is rotatably supported at the lower part of the support plate 11, and the nut 16 and the tool holder 13 are rotationally driven at the same time by a motor 17 supported by the support plate 11.

Here, the means for transmitting the rotation of the motor 17 to the tool holder 13 and the nut 16 is the rotation shaft of the motor 17, the shaft 14 of the tool holder 13, and the nut 1.
A toothed pulley 18 is attached to each of the pulleys 18, and an endless toothed belt 19 is installed between the plurality of pulleys 18.
Although the structure is such that a chain-sprocket mechanism is adopted, the rotation transmission means is not limited to this.

The tool unit 10 constructed as described above is reliably held at the adjusted position by the action of the holding device 20. This holding device 20 is capable of rotating a camshaft 22 arranged parallel to the rail 4 using a bearing 21 fixed on the slide beam 2 so that a plurality of tool units 10 arranged on the slide beam 2 can be fixed simultaneously. The camshaft 22 is supported by an arcuate pressing portion 23 and a flat non-pressing portion 24 on the outer periphery of the camshaft 22.
As the tool unit 10 is rotated, the pressing portion 23 is engaged with the center portion of the lower side of the support plate 11 to hold the tool unit 10.

Note that the holding device 20 is not limited to the above configuration, and for example, a tube-like object that can be expanded and contracted is arranged in place of the camshaft 22, and a fluid such as air is supplied to the inside of the tube-like object. Alternatively, the tube-shaped member may be inflated and the tube-shaped member may be engaged with the support plate 11 when the tube is inflated.

Further, the nut 16 of the tool unit 10 is engaged with a screw shaft 30. This screw shaft 30 is threadedly engaged with each nut 16 of a plurality of tool units 10 arranged in parallel, and its end is rotatably supported by the side frame 1, as shown in FIG. It is a member for adjusting the position of the tool unit 10. Further, an electromagnetic brake 31 is connected to the end of the screw shaft 30, and by operating the electromagnetic brake 31, the screw shaft 30 can be stopped from rotating.

The tool positioning device shown in the embodiment has the above-mentioned structure, and this positioning device is arranged upside down so that the lower tool 15 and the upper tool (indicated by chain lines in FIGS. 1 and 2) are arranged in opposite directions. The pair of tools 15 are rotated in opposite directions to perform appropriate processing on a sheet-like object such as a corrugated cardboard sheet that is conveyed between the two tools 15.

Now rotate the camshaft 22 and press the pressing part 23.
is engaged with the center of the lower side of the support plate 11 to hold the tool unit 10, and the electromagnetic brake 31 is released to release the rotation of the screw shaft 30, and in this state, the motor 17 of the tool unit 10 is driven. , the tool holder 13 rotates, and the tool holder 1
Appropriate processing can be performed using the tool 15 supported by 3. At this time, the nut 16 also rotates at the same time, but since the screw shaft 30 that threadably engages with the nut 16 is in a rotatable state, the nut 16
At the same time, the screw shaft 30 rotates and the tool unit 10 does not move. In this way, the holding device 20 is not necessarily required since the tool unit does not move.

In addition, the camshaft 22 is rotated, and the non-pressing part 2
4 facing the lower side of the support plate 11 and the tool unit 1
0 is released, the electromagnetic brake 31 is actuated to prevent the screw shaft 30 from rotating, and in this state, when the motor 17 is driven, the nut 16 rotates with respect to the screw shaft 30 that has been prevented from rotating. The tool unit 10 can be moved along the rail 4 and the position of the tool 15 can be adjusted. in this case,
Since the support plates 11 of the plurality of tool units 10 are each provided with a motor 17, the positions of the plurality of tools 15 can be adjusted individually to the right or left of the rail 4 at the same time.

In the embodiment shown in FIGS. 1 to 3, the screw shaft 30 is stopped from rotating by an electromagnetic brake 31, but as shown in FIG. 4, the screw shaft 30 is stopped from rotating by a motor 32 with a brake. You may.

Generally, a sheet-like object such as a cardboard sheet is conveyed with the center of the machine as a reference, and on the other hand, the position of the tool 15 for processing the sheet-like object is adjusted according to the sheet-like object. Even if the unit 10 is accurately positioned, if the sheet-like object is not conveyed accurately, the sheet-like object cannot be accurately processed. In such a case, a plurality of tool units 10 whose positions have been adjusted
When adjusting the spacing, it becomes necessary to change the overall position.

As shown in FIG. 4, when the motor 17 is stopped and the motor 32 with a brake, which is capable of braking when the screw shaft 30 is stopped, is driven to rotate the screw shaft 30, a plurality of tool units are rotated. Since the tools 10 move simultaneously along the rail 4 while maintaining their respective intervals, it is possible to adjust the position of the entire tool unit relative to the sheet-like object.

Figures 5 to 8 show the tool holder 13 and the nut 1.
6 are rotated independently by one motor 17, so that only the tool holder 13 is rotated when cutting or scribing a sheet-like object, and only the nut 16 is rotated when adjusting the position of the tool 15. A device is shown and the positioning device will be described below. In addition, in the figure, the first
Components that are the same as those in FIGS. 3 to 3 are designated by the same reference numerals, and their explanations will be omitted.

As shown, a cylinder 40 is attached to one side of the support plate 11, and a block 42 is connected to a piston rod 41 of the cylinder 40.
This block 42 is supported so as to be slidable in the vertical direction along one side edge of the support plate 11, and a toothed switching pulley 43 supported by the block 42 and a motor 17 arranged on the other side of the support plate 11 An endless double-sided toothed belt 19' is inserted between the toothed pulleys 18.
is being passed over.

The double-sided toothed belt 19' is attached to the tool holder 13
When the block 42 is lowered by the operation of the cylinder 40, the double-sided toothed belt 19' passes between the toothed pulley 18 provided on the shaft 14 of the nut 16 and the toothed pulley 18 provided on the nut 16. When the toothed pulley 18 is engaged and the block 42 is raised, the double-sided toothed belt 19' engages the toothed pulley 18 of the tool holder 13.

Therefore, when adjusting the position of the tool unit 10, the double-sided toothed belt 19' is engaged with the toothed pulley 18 of the nut 16 to drive the motor 17, as shown in FIG. At this time, as shown in FIG. 8, the double-sided toothed belt 19' is engaged with the toothed pulley 18 of the tool holder 13 to drive the motor 17.

In addition, in adjusting the position of the tool unit 10,
In order to reduce the distance between adjacent tools 15, it is preferable to shift the motors 17 of adjacent tool units 10 in the vertical direction as shown in FIG.

As shown in FIGS. 5 to 8, the tool holder 1
3 and the nut 16 are each driven independently, the nut 16 is held in a stopped state when the tool 15 rotates, so the holding device 20 can be omitted.

Further, as shown in FIGS. 5 to 8, in a tool positioning device in which the rotation of the tool 15 and the position adjustment of the tool unit 10 are performed by replacing the belt 19', the screw shaft 30 and the nut 16 threadedly engaged therewith, a unit moving device as shown in FIGS. 9 and 10 can be adopted.

The unit moving device shown in FIGS. 9 and 10 moves the tool unit 10 onto the rail 4 in the following manner.
It was designed to move along the

That is, a rack 50 is mounted on the slide beam 2 parallel to the rail 4 as a member for adjusting the position of the tool unit 10, a rotating body that engages with the rack 50, a pinion 51 that meshes with the rack 50,
A shaft 53 of the pinion 51 supported by a bearing 52 attached to the support plate 11, a bevel gear 54 attached to the end of this shaft 53, and a bevel gear supported by the support plate 11 and meshing with the bevel gear 54. 55, the toothed pulley 18 mounted coaxially with the bevel gear 55 is rotated by engagement with the double-sided toothed belt 19', and this rotation operates the rotating body of the above configuration, and the tool is rotated. unit 10
I'm trying to move it.

In addition, in the case of the above embodiment, a slitter is shown as a tool, but a scorer may also be used.

〔effect〕

As described above, according to the present invention, it is not necessary to use different motors to drive the rotation of the tool and position the tool, so the entire device can be simplified. In addition, since a motor is attached to each of the support plates in the plurality of tool units, by rotating the rotating body by driving the motor, the plurality of support plates can be individually moved to the right or left along the guide member. can be moved in the direction. Therefore, when adjusting the position of multiple tools, even if the tools move in different directions and amounts, each tool can be moved simultaneously in the position adjustment direction, and the accuracy of stopping the tools can be improved. Therefore, even if the motor is rotated at a reduced speed before the tool adjustment position, the movement of other tools is not affected, and therefore, the positions of a plurality of tools can be adjusted in an extremely short time.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional front view showing one embodiment of the tool positioning device according to the present invention, Fig. 2 is a longitudinal sectional side view of the same, Fig. 3 is a perspective view of the same, and Fig. 4 is another embodiment of the same. FIG. 5 is a perspective view showing still another embodiment of the same, FIG. 6 is a partially cutaway side view of the same, and FIGS. 7 and 8 are longitudinal front views showing the same operating state. FIG. 9 is a longitudinal sectional front view showing still another embodiment of the tool positioning device, and FIG. 10 is a longitudinal sectional side view of the same. 4...Rail, 10...Tool unit, 11...
... Support plate, 13 ... Tool holder, 16 ... Nut (rotating body), 17 ... Motor, 30 ... Screw shaft (position adjustment member).

Claims (1)

[Claims] 1. A horizontal guide member that extends long in a direction perpendicular to the running direction of the sheet-like object, and is provided so that its position can be adjusted along the guide member, and is used to cut or score the sheet-like object in the running direction. a support plate comprising a plurality of tool units having tools, and a member for position adjustment extending in a parallel direction of the tool units, and each of the tool units is provided so as to be slidable along the guide member; a rotating body attached to the support plate and engaged with the position adjustment member; a tool support holder rotatably attached to the support plate;
Rotate the above holder during cutting or creasing processing,
A tool positioning device comprising: a single drive motor that rotates the rotating body during position adjustment of the tool unit.