JP2004050346A - Scribing device equipped with rotary scriber - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a scribing device which continuously and clearly scribes the same thick scribing line at all times. <P>SOLUTION: A scriber 7 running on a plate material 9 to be scribed is rotatably retained at the top of a rotator 12. A general-purpose pencil-type scriber with a cemented carbide tip attached to the top thereof is used as the scriber 7. The pressing pressure of the scriber 7 to the plate material to be scribed 9 is always kept constant during scribing operation. The thickness of a line to be drawn is changed by adjusting the pressing pressure. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an improvement in a scoring device for scoring a processed figure on the surface of a steel plate or a nonferrous metal plate.
[0002]
[Prior art]
When processing a steel plate or a non-ferrous metal plate material, there is a process of scribing a processed figure on the surface. In this step, a scorer is used.
In the conventional scoring device, as shown in FIG. 4, while holding a pen for marking that can be run vertically and horizontally with respect to a plate material 9 to be scored by a pen holder 13, reference numerals 21a to 21b are shown in the drawing. As described above, the marking pen is pressed perpendicularly to the surface of the plate material 9 to perform marking with ink. The pressing force of the marking pen is obtained by the weight of the pen holder 13 and the weight of the bracket 14 to which the pen holder 13 is attached.
[0003]
As another method, instead of the marking pen, a metal scribe needle 7 ′ as shown in FIG. 5 is fixed to the holder 13 via the metal fitting 22, and is vertically pressed against the surface of the plate 9. Marking was done. The pressing force of the marking pen is obtained by the weight of the pen holder 13 and the bracket 14 to which the pen holder 13 is attached, as in the case shown in FIG.
[0004]
[Problems to be solved by the invention]
In the marking method using the marking pen shown in FIG. 4, when the plate material 9 is gas-cut in the next step, the line of the ink marked on the surface of the plate material 9 flows by the cooling water, and the line disappears. , Can not achieve the purpose. Further, since the marked line becomes thick as about 2 mm, the accuracy of scoring deteriorates, and there is a disadvantage that in the case of detailed marking or close marking, the line is overlapped and cannot be determined.
[0005]
In the method of fixing the scribing needle 7 'shown in FIG. 5, since the scribing needle 7' is normally fixed to the holder 13, the scribing needle 7 'is moved on the plate 9 in the direction of arrow A as shown in FIG. At this time, the stitches are caught as shown by a and the needle jump phenomenon occurs as shown by b, and a continuous line cannot be drawn on the plate material 9.
[0006]
On the other hand, as shown in FIG. 6 (b), when the scribe needle 7 'is inclined and fixed, when the scribe needle 7' moves in the direction of arrow B, the needle jump phenomenon can be prevented. When the scribe needle 7 'moves in the C direction, a force for pushing the tip of the scribe needle 7' is generated on the surface of the plate member 9, and the recoil thereof causes the scribe needle to move in the direction opposite to the own weight of the holder 13 and the bracket 14. 7 'escapes, and the needle jumping phenomenon occurs more remarkably than when the scribing needle 7' is fixed in the above-described vertical direction. Occasionally, the scribe needle 7 'was broken, leading to a failure of the holder.
[0007]
[Means for Solving the Problems]
SUMMARY OF THE INVENTION An object of the present invention is to solve such a drawback, and to provide a scriber 7 so that the scriber 7 can be moved with respect to a plate material 9 to be scribed. 12 and can be rotated. With such a configuration, a ruled line having a preferable thickness can be continuously and clearly drawn on the surface of the plate material 9. Unlike the marking pen method, replenishment of ink and replacement of the pen are not required, the lines do not disappear, and the efficiency of the scribing operation is greatly improved.
[0008]
As the scribe needle 7, it is desirable to use a general-purpose pencil-type scribe needle having a carbide tip at the tip. In this case, since the thickness of the needle tip does not easily change, it is possible to continuously draw the ruled line of the same thickness forever. It is possible to achieve a longer life and easier availability.
[0009]
It is desirable that the pressing force of the scribe needle 7 against the plate material 9 to be scribed be constantly constant during the scribe operation. In this way, the ruled lines having the same thickness can always be drawn continuously and clearly.
[0010]
It is desirable that the thickness of the line to be drawn can be changed by adjusting the pressing force of the scribing needle 7 on the plate material 9 to be scored. In this way, it is possible to cope with plate materials 9 of various materials.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
A preferred embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a schematic front view showing an example of an automatic scoring device provided with the scoring device according to the present invention, FIG. 2 is a schematic plan view of the automatic scoring device shown in FIG. 1, and FIG. FIG. 3 is an enlarged side view illustrating an example of the scorer according to the present invention as viewed from a portion A. The automatic scoring device shown here can perform two-axis automatic control in the X-axis direction in FIG. 1 and the Y-axis direction in FIG. A traveling frame 3 is mounted on a pair of left and right rails 2a, 2b supported by a pair of left and right receiving stands 1a, 1b so as to be orthogonal to each other, and the traveling frame 3 moves on the rails 2a, 2b in the Y direction of FIG. It is made to run. On the other hand, a rail 5 is fixed to the traveling frame 3, and the carriage 4 travels on the rail 5 in the X direction in FIG.
[0012]
A scoring device 6 according to the present invention is mounted on the carriage 4. The scribing device 6 holds a scribing needle 7, and can scribing an arbitrary figure on the upper surface of a plate material 9 placed on a surface plate 8. An arbitrary figure can be drawn using a keyboard on an input panel surface built in the operation panel 10, displayed on a CRT screen of a computer, and operated in XY directions by automatic control.
[0013]
As shown in FIG. 3, the scribing device 6 is held by a bracket 11 and is fixed to the carriage 4 so that it can be moved on the rails 5 and 5 in the X direction of FIG. Marking needles indicated by reference numeral 7 in FIG. 1 and reference numerals 7a and 7b in FIG. 3 are held at the tip of the rotating device 12, and rotate at high speed. Generally, a motor can be used for the rotating device 12. Further, the number of rotations can be set to 10,000 to 20,000 rpm.
[0014]
The rotating device 12 is held by a holder 13, a bracket 14, and a vertical moving plate 15, and can be moved up and down by a parent cylinder 18 along a guide rail 17 mounted along a base 16. . Here, a case where the parent cylinder 18 is an air cylinder is illustrated.
A child cylinder 19 is connected to a tip of the parent cylinder 18 by a pin 20. Both the parent cylinder 18 and the child cylinder 19 can be operated independently in the vertical direction. For example, the stroke of the parent cylinder 18 can be 200 mm, and the stroke of the child cylinder 19 can be 40 mm.
[0015]
Next, the operation of the scoring operation by the automatic scoring device having the scoring device exemplified here will be described.
(1) Before the operation, the parent cylinder 18 and the child cylinder 19 are both raised at the standby position. The position of the scribe needle in this case is indicated by reference numeral 7a in FIG.
(2) In response to the operation start command, the parent cylinder 18 descends from the standby position. At this time, the scribe needle 7 has not yet contacted the plate material 9.
(3) The pressure of the child cylinder 19 is released, the scribing needle 7 is lowered by its own weight of the holder 13, the bracket 14, and the up-and-down moving plate 15, and the tip of the needle is brought into contact with the plate material 9. The position of the scribing needle in this case is indicated by reference numeral 7b in FIG.
(4) The rotating device 12 is rotated. The scribing needle 7b held at the tip of the rotating device 12 rotates in the direction of arrow D in FIG.
(5) An arbitrary figure displayed on the CRT screen of the operation panel 10 is marked on the plate 9.
(6) In response to the operation end command, the parent cylinder 18 and the child cylinder 19 are simultaneously raised to be in a standby state.
[0016]
In this case, the contact pressure (pressing force) of the scribe needle 7 to the plate 9 can be adjusted by adjusting the air pressure of the slave cylinder 19, but usually, the work is often performed only by its own weight. When a non-ferrous metal plate material, particularly a soft material, is processed, the contact pressure (pressing force) is adjusted.
The motor used as the rotating device 12 may be either an electric motor or a pneumatic motor, and a spring may be used instead of the child cylinder 19.
[0017]
【Example】
As an example, specific numerical values when drawing a scribe line by vertically pressing a general-purpose pencil-shaped scribe needle with a carbide tip at the tip against the surface of a steel plate are given.
Pressing force of scribe needle 7: 1.0 kgf only with own weight
Number of rotations of the scribe needle 7: within the range of 10,000 to 20,000 rpm When the scribe operation was performed under these conditions, an extremely good scribe line having a thickness of 0.3 mm or less could be drawn. No needle jumping occurred. The life of the needle was 500 hours or more in terms of 8 hours of continuous operation for one day, and the life was 1.5 times longer than that of the conventional fixed type.
[0018]
The conventional scribing apparatus shown in FIGS. 4 and 5 also has a part holding the marking pens 21a and 21b (in the case of FIG. 4) and the scribing needle 7 '(in the case of FIG. 5) of the present invention. The other parts are basically the same as those illustrated in FIG. Therefore, for the members common to both, the drawing symbols shown in FIG. 3 are used in FIGS. 4 and 5 as they are.
[0019]
【The invention's effect】
According to the first aspect of the present invention, it is possible to continuously and clearly draw a ruled line having a preferable thickness on the surface of the plate material.
[0020]
According to the second aspect of the present invention, since the thickness of the needle tip is hard to change, it is possible to continuously draw a line of the same thickness continuously and clearly. It is possible to achieve a longer life and easier availability.
[0021]
According to the third aspect of the present invention, it is possible to draw a continuous line with the same thickness.
[0022]
According to the fourth aspect of the invention, the thickness of the drawn line can be changed by adjusting the pressing force of the scribing needle on the plate material to be scored, so that it is possible to cope with plate materials of various materials. .
[Brief description of the drawings]
FIG. 1 is a schematic front view showing an example of an automatic scorer provided with a scorer according to the present invention.
FIG. 2 is a schematic plan view of the automatic scoring device shown in FIG.
FIG. 3 is an enlarged side view showing an example of the scorer according to the present invention as viewed from a portion AA in FIG. 1;
FIG. 4 is a side view for explaining a scoring operation by a conventional marking pen method.
FIG. 5 is a side view for explaining a scoring operation by a conventional scoring needle method.
FIG. 6 is an explanatory diagram showing a drawback of the conventional scribing needle system.
[Explanation of symbols]
6 ... scribing device, 7, 7a, 7b ... scribing needle, 9 ... plate material, 12 ... rotating device, 13 ... holder, 14 ... bracket, 18 ... parent cylinder, 19 ... child cylinder.

Claims (4)

A rotary ruler provided with a scriber so as to be able to travel with respect to a plate material to be scribed, the scriber being held at the tip of a rotating device and being rotatable; A scoring device with a writing needle. 2. A scoring device provided with a rotary scribing needle according to claim 1, wherein a general-purpose pencil scribing needle having a carbide tip at its tip is used as the scribing needle. 2. A scoring device provided with a rotary scribing needle according to claim 1, wherein the pressing force of the scribing needle 7 on the plate material 9 to be scored is always constant during the scoring operation. 4. The rotary scribing needle according to claim 3, wherein the thickness of the drawn line can be changed by adjusting the pressing force of the scribing needle 7 against the plate material 9 to be scored. Scoring device.

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