JP2660625B2 - Equipment for manufacturing Sinai rulers for steel frame processing - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a Sinai ruler used in the production and processing of steel frames for construction, and more particularly, to cutting, drilling, welding, etc. of steel frames as materials based on design specifications in advance. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ruler manufacturing apparatus for manufacturing a strip steel work instruction gauge called a Sinai ruler, which is used for work instructions when writing a simple mark.

[0002]

2. Description of the Related Art Conventionally, when a ruler of this type is produced, as shown in FIG. 6, a pair of upper and lower feed rollers 1 and 2 which are pressure-bonded with a strong pressure by a hydraulic pressure or a spring, and a ruler strip 3 is used. The steel strip 3 is sent out from the introduction side A in the direction of the feed side B while the steel strip 3 is sandwiched, and characters, graphics, and symbols necessary for cutting, drilling, welding, etc. on the surface of the steel strip 3 on the feed side B. By writing marks such as at predetermined intervals, a Shinai ruler having a predetermined length has been manufactured.

FIG. 5 is a diagram showing in detail the configuration of the above-mentioned conventional apparatus. The ruler strip 3 is arranged by a roller 2 rotated by a servomotor 4 from the introduction side A to the mark writing apparatus 5. The required length is sent toward the sending side B, and necessary marks such as characters, figures, and symbols are written at predetermined intervals by the pen 6 of the mark writing device 5. The required feed amount of the strip 3 is checked by a read sensor 8 provided at a predetermined distance from a length control marker 7 disposed behind the roller 2, and the feed length is checked via an interface 9. A feedback mechanism is provided to obtain the feed control amount by the personal computer 10 and to control the servo motor 4 through the pulse generation interface 11 and the high-power conversion interface 12 to correct the slip amount generated when the steel strip 3 is fed. It has a configuration.

[0004]

However, in the conventional apparatus as described above, the strip 3 is fed by the point contact frictional force between the pair of upper and lower feed rollers 1 and 2, so that when the strip 3 is fed at a high speed, the roller and There is a problem that a slip occurs between the steel strip and the steel strip. Therefore, the feed mechanism must be provided with a feedback mechanism as described above, and the steel strip must be fed at a very low speed. Even if the feed length control marker 7
And the reading sensor 8 must be arranged at a position at a predetermined distance from the marker 7 to check the feed length of the steel strip, so that the feed form of the steel strip is an intermittent fixed-size feed. There is a drawback in that it takes time to manufacture the product and that efficient production cannot be expected.

Furthermore, it is necessary that marks such as necessary characters, figures, symbols, and the like to be written on the steel strip are written with a pen of a mark writing device in a state where the steel strip is arranged in a completely straight line. However, in the system in which the mark is written after the strip is fed by the feed roller of the line contact type as in the above-mentioned conventional apparatus, as shown in FIG. 5, sometimes the strip 3 is fed. When a mark such as a character, figure, or symbol is written in such a state, the distance between the marks may become inaccurate and the mark may not be accurate. There was a drawback that no entry was made and a Sinai ruler with poor entry position accuracy was created.

[0006]

SUMMARY OF THE INVENTION In view of the above-mentioned problems of the conventional feeder, the present invention can stably hold a long strip of the Shinai ruler strip at a relatively low pressure without slippage. With a feed drive unit, it is possible to transfer while repeating high-speed and accurate movement and stop, and to provide a manufacturing apparatus for a Sinai ruler provided with a strip feed mechanism that can produce a high-precision ruler with few errors. It was done.

[0007] As a specific means for achieving the above object, a manufacturing apparatus for a Sinai ruler according to the present invention includes marks, such as characters, figures, and symbols, on a long steel strip used as a Sinai ruler at predetermined intervals. A strip feed mechanism for filling in each of the strip feed drive, a strip feed reel disposed on the strip introduction side of the strip feed drive, the strip feed drive and the strip; A mark writing device movable along the length direction of the steel strip provided on the steel strip transfer path between the steel supply reel,
A reel for winding the steel strip introduced from the side of the mark writing device on the outer peripheral surface, comprising a steel strip take-up reel arranged on the steel strip feed side of the steel strip feed drive section; The driving roller and the driving roller are pressed against the outer peripheral surface of the driving roller around which the steel strip is wound by a pressure from a support plate fixed to a frame or the like of the driving roller via a spring or the like. And a plurality of tension pulleys radially arranged with respect to the output shaft.

[0008]

According to the apparatus for manufacturing a ruler of the present invention, a driving roller for feeding a steel strip and a plurality of radially arranged pressure rollers which are respectively pressed against the outer peripheral surface of the driving roller by spring pressure or the like. The tension pulley is used to feed the drive roller so that a large surface contact due to a plurality of linear contact pressures is given to the drive roller, so that the steel strip can be transferred between the drive roller and the drive roller without slipping due to a large frictional force. It is possible to manufacture a high-accuracy ruler having no error while repeatedly moving and stopping at a relatively high speed.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the Sinai ruler manufacturing apparatus of the present invention will be described with reference to the embodiment shown in the drawings. FIG. 1 is an overall configuration diagram of the apparatus. An input control mechanism unit 20 for giving an instruction as to whether a mark is to be written, and an input control mechanism unit 20 for writing a mark such as a character, a figure or a symbol on the surface of the long steel strip at predetermined intervals while moving the long steel strip. And a steel strip feed mechanism 30.

An input control mechanism section 20 shown in FIG. 1 uses a display 22, a keyboard 23, and a roller ball 24 to input information required for manufacturing a ruler and to control a personal computer 21 for controlling the entire mechanism. , A hard disk 26 storing input data, and a personal computer 2
An interface 27 for generating a predetermined pulse to the drive motor in the steel strip feed mechanism 30 in accordance with a command from the interface 1 and an interface 28 for converting a signal from the interface 27 into a strong current. If necessary, the input data of the personal computer 21 can be printed out on a paper by the printer 25 and can be confirmed.

FIG. 2 shows the structure of the steel strip feed mechanism 30. As shown in FIG. The mechanism includes a steel strip supply reel 33 provided on a side surface of the frame 31 for feeding a long steel strip 32, and a steel strip 32 fed from the supply reel 33.
And a mark for characters, graphics, symbols, etc., on a steel strip 32 provided on a steel strip transfer path between the supply reel 33 and the feed drive part 34. It comprises a mark writing device 35 and a steel strip take-up reel 36 for winding the steel strip 32 fed from the feed drive unit 34.

The feed drive unit 34 of the steel strip feed mechanism 30
Is the input control mechanism 2 as shown in FIGS.
A reel-shaped drive roller 40 having a relatively large outer diameter rotated by a command from 0, and a peripheral surface of the drive roller 40 on at least a quarter on a side facing the steel strip introduction side A, preferably It is composed of a plurality of tension pulleys 41a to 41n that are radially arranged and pressed against a substantially half circumferential surface by a spring pressure or the like.

As shown in FIG. 4, the drive roller 40 forming the feed drive unit 34 has a flange 51 for guiding the steel strip 32 on the outer periphery and is provided on the back surface of the frame 31. Stepping motor 52 with reduction gear
Is mounted on the output shaft 53. The motor 52
Is fixed to a fixing plate 54 via a bolt 55, and the fixing plate 54 is fixed via a bolt 57 to the front surface of the frame 31 having a hole 56 through which the motor 52 can be inserted.

On the other hand, the plurality of tension pulleys 41a to 41n in the feed driving unit 34 are provided at the lower ends of the plurality of movable blocks 42a to 42n arranged on the front surface of the motor fixing plate 54 which forms a part of the frame. Is provided. Each of the movable blocks 42a to 42n includes:
The center lines are arranged radially with respect to the output shaft 53 of the drive roller 40, and the tension pulleys 41a to 41n are provided at the lower ends of these movable blocks 42a to 42n in parallel with the output shaft 53. It is rotatably mounted on a shaft 44 via a bearing 43. At the upper ends of the movable blocks 42a to 42n, guide shafts 46a to 46n each having a predetermined length with coil springs 45a to 45n fitted on the outer periphery thereof are protruded, and the guide shafts 46a to 46n are The upper end is provided on the front surface of the motor fixing plate 54 with the drive roller output shaft 53, respectively.
Support plates 47a to 47 protruding radially with respect to
n and slidably supported by the springs 45a to 45
The respective tension pulleys 41a to 41n are pressed against the outer peripheral surface of the driving roller 40 with a predetermined pressure through the elasticity of n.

The steel strip 32 fed from the steel strip supply reel 33 of the steel strip feed mechanism 30 is interposed on a guide pulley 48 having a detection sensor, and then passes through the mark writing device 35 above. Sent to the feed drive unit 34,
The plurality of tension pulleys which are wound around the driving roller 40 at a large angle so as to come into contact with substantially the half-peripheral surface of the driving roller 40 from the steel strip introduction side A, and in which state pressure is applied by springs 45a to 45n respectively. 41a
To 41n to give a predetermined driving force,
Thereafter, on the strip feeding side B, the belt is wound on the strip winding reel 36 after being interposed on a guide pulley 70 with a detection sensor similar to the guide pulley 48.

The marking device 35 includes a steel strip supply reel 3.
A support table 74 on which a predetermined length of the strip 32 sent from the frame 3 is placed, and a guide plate 75 provided on the upper surface of the frame 31
And a writing tool 76 that can move along the length direction of the strip 32 in a state of protruding from the guide groove 77 of the guide plate 75 toward the support table 74, and the strip 32 is driven by a feed drive unit. When moving the upper surface of the support base 74 in the direction of the drive unit 34 by receiving the driving force by the
In response to a command from 0, the writing implement 76 writes marks such as characters, figures, and symbols on the surface of the steel strip 32 at predetermined intervals.

In the above embodiment, the stepping motor 52 is used as the motor for rotating the drive roller 40, but a servo motor may be used. Further, in the above embodiment, as means for pressing the tension pulleys 41a to 41n against the outer peripheral surface of the drive roller 40, a coil spring interposed between the respective movable blocks 42a to 42n and the support plates 47a to 47n. 45a to 45n
However, a means other than a spring, such as a hydraulic device, may be used as a pressing means for the tension pulleys 41a to 41n.

[0018]

According to the Sinai ruler manufacturing apparatus of the present invention, a feed drive section for pinching and feeding a steel strip is disposed radially around a reel-type drive roller and an outer periphery of the drive roller. Since it is composed of a plurality of tension pulleys that are compressed by spring pressure, etc., a plurality of tension pulleys that can be crimped toward the output shaft direction of the drive roller by their own spring pressure, etc. They can be evenly spaced at relatively short intervals, respectively, over a long circumferential surface which extends over substantially a half circumferential surface. As a result, the strip steel wound around the outer peripheral surface of the drive roller is given a large number of linear contact-type pinching forces by the respective tension pulleys to the contact surface in a large area of the outer peripheral surface of the drive roller, and The steel can always be sent out at a stable contact pressure where slippage does not easily occur, and the steel strip can be reliably transferred while repeatedly moving and stopping at a high speed as compared with a conventional apparatus of this type.

Further, in the Sinai ruler manufacturing apparatus of the present invention,
A mark marking device is provided in the strip transfer path between the strip supply reel and the feed drive, and the strip is fed only under the pulling force from the feed drive before the strip is fed into the feed drive. Since the steel strip is marked with characters, figures, symbols, etc., the steel strip is always kept in a straight line at this mark-marking device. As in the conventional device to be filled, there is no trouble that the steel strip bends at the mark writing device in the form of a mountain, and in combination with receiving a stable transfer force that is less likely to slip by the feed drive unit. In addition, it is possible to efficiently manufacture a high-precision Shinai ruler having no error even if the transfer is repeated while moving and stopping at a high speed without providing a feedback control device in the feed mechanism.

Further, in this Sinai ruler manufacturing apparatus, as described above, the pinching pressure of each of the tension pulleys on the drive roller is partially scattered in a large area extending over substantially a half circumferential surface of the drive roller. So you can
Even if the contact pressure of each tension pulley against the steel strip is reduced by the spring or the like, the steel strip can be sent out with a stable force that does not easily cause slip. As a result, a mark writing device is provided on the introduction side in front of the feed drive unit. After the marks such as characters, graphic symbols, etc. are written on the steel strip, even if the steel strips pass through the feed drive unit, the marks of the characters, figures, symbols, etc. written on the steel strips are not The problem of disappearing or bleeding in the portion of the image does not occur.

Although the above-described embodiment has been described with reference to the case of a Sinai ruler used for processing a steel frame, the apparatus of the present invention is applicable to the case of manufacturing a ruler having the same purpose using a steel strip other than the Sinai ruler as a material. It is also possible to apply to.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the overall structure of a Sinai ruler manufacturing apparatus according to the present invention.

FIG. 2 is a perspective view showing a configuration of a strip feeding mechanism in FIG. 1;

FIG. 3 is a front view showing a configuration of a steel strip feed drive unit in FIG. 2;

FIG. 4 is a sectional view taken along line DD in FIG. 3;

FIG. 5 is a front view showing a configuration of a conventional Sinai ruler manufacturing apparatus.

FIG. 6 is a perspective view showing a configuration of a steel strip feed drive unit in the conventional device.

[Explanation of symbols]

20: Input control mechanism, 30: Strip feed mechanism, 3
1: Frame, 32: Strip, 33: Strip supply reel,
34: Feed drive unit, 35: Mark writing device, 36:
Strip take-up reel, 40: drive roller, 41a ...
41n: tension pulley, 42a... 42n: movable block, 43: bearing, 44: shaft 45a
..45n: spring, 46a... 46n: guide shaft, 4
47a: Support plate, 48: Guide pulley, 5
1: flange, 52: motor with reduction gear, 53: output shaft, 54: fixed plate, 56: hole, 70: guide pulley, 74: support base, 75: guide plate, 76: writing implement,
77: guide groove,

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Katsuhiko Yoshida 230, Tenkawa Oshimacho, Maebashi, Gunma Co., Ltd. Inside Yoshida Tekkosho Co., Ltd.

Claims (2)

(57) [Claims] A strip feed mechanism for writing marks, such as characters, figures, and symbols, at predetermined intervals on a long strip used as a Sinai ruler, comprises: a strip drive; A steel strip supply reel disposed on the steel strip introduction side of the steel strip feed drive section, and a length direction of the steel strip provided on the steel strip transfer path between the steel strip feed drive section and the steel strip supply reel. And a strip take-up reel arranged on the strip feeding side of the strip feeding drive section, the strip feeding drive being introduced from the mark writing apparatus side. A roller-type drive roller for winding a steel strip around an outer peripheral surface thereof, and a pressure from a support plate fixed to a frame or the like of the drive roller via a pressure of a spring or the like, with respect to the outer peripheral surface of the drive roller wound with the steel strip. Against the output shaft of the drive roller so that An apparatus for manufacturing a steelwork processing Sinai rule, comprising a plurality of tension pulleys arranged radially. 2. The belt feeding drive unit according to claim 1, wherein the plurality of tension pulleys are radially arranged on at least one-fourth of a peripheral surface of the driving roller on a side facing the steel band introduction side. The manufacturing apparatus of the steelwork processing ruler according to the above.