JPH0240520B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a paper feed direction and paper width direction for continuously drawing clothing patterns divided by scissoring on full-length marking paper using a flatbed type automatic drafting/pattern cutting machine. This invention relates to an edge control device for full scale marking.

Conventionally, various edge control devices have been used to control the width direction of paper, but all of these devices are used for the purpose of aligning the paper edges at a certain point during paper feeding, and the edge control device is used to align the paper edges at a certain point during paper feeding. It generally has a sensor and an edge control mechanism.

Therefore, in order to match the edges in the paper width direction at two points in the paper feeding direction, it is necessary to provide an edge sensor and an edge control mechanism independently at each point, which requires a complicated and large mechanical structure. It has the drawbacks of large scale and high initial cost.

The present invention has been made in consideration of the above-mentioned points, and in addition to solving the above-mentioned drawbacks, it is not only used as an edge control device in a paper winding mechanism, but also as an edge control device that can be divided by scissoring using an automatic drafting/pattern cutting device. The present invention provides an edge control device for continuously drawing a pattern on a sheet of paper.

The present invention will be explained in detail below based on the drawings.
FIG. 1 is a plan view showing an embodiment of an edge control device for full scale marking according to the present invention, and FIG. 2 is a cross-sectional view of the sensor portion taken along the line A--A in FIG. In FIG. 1, reference numeral 2 denotes a table on which paper 1, which is a winding medium, travels, and this table 2 is held by a pedestal 3. Furthermore, a supply roller 4 is held at one end of the pedestal 3 by a feeding device 5. A take-up roller 6 is held at the other end by a take-up device 7. The take-up roller 6 further comprises an edge control drive device 8 provided on the sensor side and a fulcrum 9 provided on the side opposite to the sensor. . Regardless of the movement of the edge control drive device 8, the take-up roller 6 can rotate about the fulcrum 9. A take-up roller drive device 10 is connected to the take-up roller 6, and not only controls the winding operation of the paper 1, but also controls the supply roller 4 by the supply roller drive device 11 to properly distribute the paper 1 on the table 2. It provides tension and assists the winding operation. Supply side sensor 12 (first
sensor) and the winding-side sensor 13 (second sensor) are installed so as not to obstruct the running of the paper 1, and a lamp 14 is provided directly above. Two lamps 14 may be provided and fixed to each sensor 12 and 13, but a track formed by a combination of a rail, a rack, a ball screw, etc. extending in the longitudinal direction of the paper 1 on the sensor side of the pedestal 3 may be used. If a lamp 15 and a moving table 16 for moving the lamp 15 are provided, and the lamp 14 is mounted on the tower, one lamp can be used for both purposes.

That is, as shown in FIG.
It is above. At this time, the paper 1 should be placed approximately in the center of the sensor 12. Lamp 1 of sensor 12
The output value received from sensor 4 changes depending on the area of paper 1 covering sensor 12, but this does not have any effect on the later results. That is, the paper 1 obtained here
Assuming that the point on the sensor 12 is point A,
Sample and hold the output value.

Next, the lamp 14 is moved onto the sensor 13. If this point is designated as point B, the output value at point B is compared with the output value at point A, and the edge control drive device 8 is controlled so that the output deviation between the two becomes zero. It is. Therefore, the present apparatus is configured so that the edge point at point A can be matched with the edge point at point B.

Furthermore, positioning in the paper feeding direction is performed by a mark sensor 17. The paper 1 passes over this mark sensor 17. A lamp 18 facing this mark sensor 17 is installed on a moving table 19, which will be described later.

Therefore, the movable table 16 is provided with a track 20 perpendicular to the track 15, and the movable table 19 is further provided with a drawing instrument 21 using a black ballpoint pen.
9 and the drawing instrument 21 are operated by a control device (not shown) and have a structure that allows drawing on the paper 1.
Drawing can be performed in combination with the edge control drive device 8 described above. This drawing device 21 marks the outermost end (unwinding side) of the effective drawing range (mark 22 shown in FIG. 3, that is, the host
Based on the data from the CPU, the lines are drawn one by one with a black ballpoint pen and filled in to a width of 5 mm and length of 35 mm), and then the lamp 18 provided on the moving table 19 comes directly above the mark sensor 17. Move it like this. Next, by winding up the paper 1 while controlling the edge and stopping the feeding of the paper 1 when the previous marking point comes directly above the mark sensor 17, it is possible to control the paper feeding direction and the paper width direction.

In other words, the effective range that can be drawn on table 2 is
Since it is restricted by the range of the table surface itself and the movement range of the movable tables 16 and 19, when the content of the drawing 23 extends over one table surface (No. 1 scissoring area) as shown in FIG. , feed paper 1 by the specified amount, and then move the next drawing (No. 2 scissoring area) to No. 1.
If you start from the rear of the scissoring area, you can draw continuously.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of the edge control device for full scale marking according to the present invention, and FIG.
The figure is a cross-sectional view of the sensor section taken along the line A--A in FIG. 1, and FIG. 3 is a diagram showing an example of scissoring drawing. 1... Paper, 2... Table, 3... Mount, 4
... Supply roller, 5 ... Supply device, 6 ... Take-up roller, 7 ... Winding device, 8 ... Edge control drive device, 9 ... Fulcrum, 10 ... Take-up roller drive device, 11 ... Supply roller drive device, 12...
Supply side sensor, 13... Winding side sensor, 1
4, 18... lamp, 15, 20... orbit, 1
6, 19...Moving table, 17...Mark sensor,
21...Drawing equipment, 22...Mark, 23...Drawing.

Claims (1)

[Scope of Claims] 1. On a flatbed type automatic drafting and cutting machine, (1) a first device for controlling the edge of the full-length marking paper;
(2) a mark sensor that detects the mark position; (3) at least one lamp; and (4) a drawing device that marks the full-length marking paper. After drawing the full-scale marking pattern for one scissoring area, the edge of the full-scale marking paper is drawn using the lamp.
an edge control device that detects the edge of the full-length marking paper with the second sensor, samples and holds the output, and then moves the lamp to detect the edge of the full-length marking paper with the second sensor, and makes the output deviation value of both of them zero. While controlling, the edge point of the full-length marking paper at a predetermined position on the first sensor is moved to a predetermined position (mark sensor detection point) on the second sensor by the paper feeding mechanism.
When the full scale marking paper is fed to a predetermined position, the edge point of the full scale marking paper is aligned with the edge point of the full scale marking paper, and before the full scale marking paper is fed, the outermost edge of the effective drawing range is marked by the drawing instrument,
Thereafter, after the full-length marking paper runs, the mark detected by the lamp is detected by the mark sensor, and the feeding of the full-length marking paper is stopped.