JPH071252A - Manufacturing device for spline for processing steel frame - Google Patents

Abstract

PURPOSE:To feed a band steel under a constant contact pressure at which a slip hardly occurs by a method wherein a plurality of tension pulleys are radially arranged and brought into pressure adhesion to the outer periphery of a reel type drive roller through their own spring pressures. CONSTITUTION:A band steel unreeled from the band steel feed reel 33 of a band steel feed mechanism part 30 is fed to a feed drive part 34 through an upper mark forming device 35 after the passage of it through a guide pulley 48 having a detecting sensor. The band steel is wound around a drive roller 40 at a high angle enough for contact with approximately the half peripheral surface of a drive roller 40 from the band steel introduction side A. With this state, the band steel is nipped by means of a plurality of tension pulleys 41a-41n on which pressures by respective springs are applied and a given drive force is exerted. Thereafter, on the band steel feed side B, the band steel is wound around a band steel winding reel 36 after the passage of it through the same guide pulley with a detecting sensor as the guide pulley 48.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is necessary for a Sinai ruler used for manufacturing and processing a steel frame for construction, more specifically, for a cutting point, a piercing point, a welding point, etc. based on design specifications of a steel frame as a material. The present invention relates to a ruler manufacturing apparatus for manufacturing a band steel work instruction gauge called a Sinai ruler, which is used for a work instruction when writing a special mark.

[0002]

2. Description of the Related Art Conventionally, when making a ruler of this type, as shown in FIG. 6, a ruler strip 3 is formed by a pair of upper and lower feed rollers 1 and 2 which are pressed by a hydraulic pressure or a strong pressure by a spring. The strip steel 3 is fed from the introduction side A in the direction of the feed side B while sandwiching it, and characters, figures, symbols necessary for cutting points, punching points, welding points, etc. on the surface of the strip steel 3 on the feed side B. The Sinai ruler having a predetermined length was manufactured by writing marks such as "" at predetermined intervals.

FIG. 5 is a diagram showing in detail the construction of the above-mentioned conventional device, in which the mark writing device 5 is arranged from the introduction side A by the roller 2 in which the ruler steel strip 3 is rotated by the servomotor 4. Then, the marks are sent to the sending side B for a required length, and marks such as necessary characters, figures and symbols are written at predetermined intervals by the pen 6 of the mark writing device 5. The required feeding amount of the strip steel 3 is checked by the reading sensor 8 provided at a predetermined distance from the length control marker 7 arranged at the rear of the roller 2, and the feeding length is checked, and then the interface 9 is used. The computer 10 calculates the feed control amount and controls the servomotor 4 through the pulse generation interface 11 and the high-electricity conversion interface 12 to provide a feedback mechanism for correcting the slip amount generated when the strip steel 3 is fed. It is composed.

[0004]

However, in the conventional apparatus as described above, since the strip steel 3 is delivered by the point contact frictional force of the pair of upper and lower feed rollers 1, 2, when the strip steel 3 is delivered at a high speed, There is a problem that slippage occurs with the steel strip, and therefore the feed mechanism must be provided with the feedback mechanism as described above, and the steel strip must be delivered at a very low speed, and the feedback mechanism is provided. Even if it is, the feed length control marker 7
Then, since the reading sensor 8 must be arranged at a position separated from the marker 7 by a predetermined distance to check the feeding length of the strip steel, the feeding mode of the strip steel becomes an intermittent constant size feed, and the ruler is used. It took a long time to produce, and there was a drawback that efficient production could not be expected.

Further, necessary characters, figures, symbols and the like marks to be written on the strip steel must be written by a pen of a mark writing device in a state where the strip steel is arranged in a completely straight line. However, in the system in which the mark is written after the strip steel is sent out by the line-contact type feed roller as in the above-mentioned conventional apparatus, as shown in FIG. 5, sometimes when the strip steel 3 is sent out. It may be curved like a mountain as shown by the chain line.If marks such as letters, figures, and symbols are written under such a condition, the distance between the marks will be incorrect and accurate marks will not be displayed. There is a drawback that a Sinai ruler that does not have the accuracy of the writing position is formed because the writing is not performed.

[0006]

SUMMARY OF THE INVENTION In view of the problems of the conventional feeder as described above, the present invention can stably clamp a long strip of Sinai ruler steel with a relatively low pressure that does not cause slippage. With the feeding drive unit, it is possible to transfer at high speed while repeating accurate movement and stop, and it is an object of the present invention to provide a Sinai ruler manufacturing apparatus equipped with a steel strip feeding mechanism unit capable of manufacturing a highly accurate ruler with few errors. It was done.

The apparatus for manufacturing a Sinai ruler according to the present invention is, as a concrete means for achieving the above-mentioned object, a mark such as a character, a figure or a symbol on a long strip steel used as a Sinai ruler at predetermined intervals. The strip feeding mechanism for filling in each of the strips is composed of a strip feeding drive, a strip feeding reel arranged on the strip introduction side of the strip feeding drive, and the strip feeding drive and 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 and the steel supply reel,
A strip steel take-up reel arranged on the strip steel delivery side of the strip steel feed drive unit, wherein the strip steel feed drive unit winds the strip steel introduced from the mark writing device side onto the outer peripheral surface. The driving roller and the driving roller wound around the strip steel are pressed against the outer peripheral surface of the driving roller from a support plate fixed to a frame of the driving roller via pressures such as springs. It is characterized by comprising a plurality of tension pulleys arranged radially with respect to the output shaft of.

[0008]

In the apparatus for manufacturing the Sinai ruler of the present invention, the strip steel is driven by the drive roller of the drive unit, and a plurality of radially arranged members are pressed against the outer peripheral surface of the drive roller by spring pressure or the like. Since the tension pulley and the drive roller feed and move the drive roller so that a large amount of line contact pressure is applied to the drive roller, the strip steel can be transferred between the drive roller and the drive roller without slippage due to a large frictional force. It is possible to manufacture a high-precision ruler with no error while repeatedly moving and stopping at a relatively high speed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a Sinai ruler manufacturing apparatus of the present invention will be described with reference to an embodiment shown in the drawings. FIG. 1 is an overall constitutional view of the apparatus. An input control mechanism unit 20 for giving an instruction as to whether or not to write a mark, and a unit for writing a mark such as a character, a figure, or a symbol on the surface of a long strip steel at predetermined intervals while moving the strip steel. It is composed of a strip steel feeding mechanism section 30.

The input control mechanism unit 20 shown in FIG. 1 uses a display 22, a keyboard 23, and a roller ball 24 to input information necessary for producing a Sinai ruler and a personal computer 21 for controlling the entire mechanism. , The hard disk 26 storing the input data and the personal computer 2
1 comprises an interface 27 for generating a predetermined pulse in the drive motor in the steel strip feed mechanism section 30 according to a command from 1, and an interface 28 for converting a signal from the interface 27 into a high electric power. If necessary, the printer 25 can print the input data of the personal computer 21 on a sheet for confirmation.

FIG. 2 shows the structure of the steel strip feeding mechanism section 30. The mechanism portion is provided with a strip steel supply reel 33 provided on the side surface of the frame 31 for feeding a long strip steel 32, and a strip steel 32 fed from the supply reel 33.
For writing characters, figures, symbols, etc. on the feed drive unit 34 for giving a driving force to the strip and the strip steel 32 provided on the strip steel transfer path between the supply reel 33 and the feed drive unit 34. It comprises a mark writing device 35 and a steel strip winding reel 36 for winding the steel strip 32 delivered from the feed drive section 34.

The feed drive section 34 of the band steel feed mechanism section 30.
2 and 3, as shown in FIG. 2 and FIG.
A reel-shaped drive roller 40 having a relatively large outer diameter that is rotated by a command from 0, and a peripheral surface of at least one-quarter of the drive roller 40 facing the strip-steel introduction side A, preferably at least one-fourth. It is composed of a plurality of radially arranged tension pulleys 41a to 41n, which are pressed against each other by a spring pressure or the like with respect to a substantially half circumferential surface.

As shown in FIG. 4, the drive roller 40 forming the feed drive unit 34 has a flange 51 for guiding the strip steel 32 on the outer periphery and is provided on the back surface of the frame 31. Stepping motor 52 with reduction gear
Is attached to the output shaft 53 of the. In addition, the motor 52
Is fixed to a fixed plate 54 with a bolt 55, and the fixed plate 54 is fixed with 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 drive 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 forming a part of the frame. It is provided. The movable blocks 42a to 42n are
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 the movable blocks 42a to 42n in parallel with the output shaft 53. A shaft 44 is rotatably mounted via a bearing 43. Further, guide shafts 46a to 46n each having a predetermined length and having coil springs 45a to 45n fitted to the outer periphery thereof are provided at the upper ends of the movable blocks 42a to 42n so as to project from the guide shafts 46a to 46n. The upper ends of the drive roller output shaft 53 and the front surface of the motor fixing plate 54, respectively.
Support plates 47a to 47 that are arranged to project radially with respect to
n is slidably supported through the springs 45a to 45a.
The respective tension pulleys 41a to 41n are pressed against the outer peripheral surface of the drive roller 40 by a predetermined pressure via elasticity of n.

The strip steel 32 fed from the strip steel supply reel 33 of the strip feeding mechanism 30 is inserted into 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 are wound around the drive roller 40 at a large angle so as to come into contact with the substantially half circumferential surface of the drive roller 40 from the strip steel introduction side A, and in that state, pressure is applied by the springs 45a to 45n, respectively. 41a
To 41n, and given a predetermined driving force,
Then, on the strip-steel feed-out side B, the strip is wound around the strip-steel take-up reel 36 after being interposed by a guide pulley 70 with a detection sensor similar to the guide pulley 48.

The mark writing device 35 is used for the steel strip supply reel 3
3 and a support plate 74 on which a predetermined length of the steel strip 32 is placed, and a guide plate 75 provided on the upper surface of the frame 31.
And a writing instrument 76 that can move along the length direction of the strip steel 32 in a state of protruding from the guide groove 77 of the guide plate 75 toward the support base 74. When the upper surface of the support base 74 is moved toward the drive unit 34 under the drive force of the personal computer 2,
In response to a command from 0, the writing instrument 76 writes marks such as characters, figures and symbols on the surface of the steel strip 32 at predetermined intervals.

Although the stepping motor 52 is used as the motor for rotating the drive roller 40 in the above embodiment, 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, coil springs interposed between the movable blocks 42a to 42n and the support plates 47a to 47n, respectively. 45a to 45n
However, as the pressing means for the tension pulleys 41a to 41n, for example, a hydraulic device other than a spring may be used.

[0018]

In the Sinai ruler manufacturing apparatus of the present invention, the feed driving unit for sandwiching and feeding the strip steel is radially arranged around the reel type driving roller and the outer circumference of the driving roller, and each has its own. Since it is composed of a plurality of tension pulleys that are crimped by spring pressure, etc., each of the tension pulleys that can be crimped in the output shaft direction of the drive roller by its own spring pressure They can be evenly arranged at relatively short intervals, respectively, over a long circumferential surface extending over almost 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 line contact-like precise clamping forces by the respective tension pulleys against the contact surface of the large area of the drive roller outer peripheral surface, The steel can always be sent out with a stable contact pressure that is unlikely to cause slippage, and the steel strip can be reliably moved while repeatedly moving and stopping at a high speed as compared with a conventional device of this type.

Further, in the Sinai ruler manufacturing apparatus of the present invention,
A mark writing device is provided in the steel strip transfer path between the steel strip supply reel and the feed drive section so that the strip steel is supplied with a pulling force from the feed drive section before being fed into the feed drive section. Marks such as letters, figures, symbols, etc. are written on the strip steel, so that the strip steel is always kept in a straight line state in the part of the mark writing device, and therefore the mark is written by the writing instrument after the strip steel is sent out. There is no trouble that the strip steel bends at the mark writing device like the conventional device that is used for filling, and it is coupled with the stable transfer force that is unlikely to cause slippage due to the feed drive unit. It is possible to efficiently manufacture a highly accurate Sinai ruler that does not have an error even if it is transferred while repeatedly moving and stopping at high speed without providing a feedback control device in the feeding mechanism section.

Further, in this Sinai ruler manufacturing apparatus, as described above, the clamping pressure by the tension pulleys for the drive roller is partially scattered over a large area extending substantially over the half circumferential surface of the drive roller. Because you can
Even if the contact pressure of each tension pulley spring on the steel strip is lowered, the steel strip can be sent out with a stable force that is unlikely to slip, and as a result, a mark writing device is installed on the introduction side in front of the feed drive unit. Even if the strip steel passes through the feed drive unit after the marks such as letters and graphic symbols are written on the strip steel, the marks such as the letters, figures, and symbols written on the strip steel are The problem of disappearing or bleeding does not occur in the area.

In the above-mentioned embodiment, the case of the Sinai ruler used for processing the steel frame has been described, but the apparatus of the present invention is used in the case of manufacturing a ruler of the same purpose using a strip steel other than the Sinai ruler as a raw material. Can also be applied to.

[Brief description of 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 steel feeding mechanism section in FIG.

FIG. 3 is a front view showing a configuration of a strip feeding drive unit in FIG.

FIG. 4 is a cross-sectional view taken along the line DD of FIG.

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

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

[Explanation of symbols]

20: Input control mechanism unit, 30: Steel strip feeding mechanism unit, 3
1: frame, 32: strip steel, 33: strip steel supply reel,
34: feed drive unit, 35: mark writing device, 36:
Strip steel 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
7a ... 47n: 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 instrument,
77: guide groove,

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsuhiko Yoshida 230 Amakawa Oshima-cho Maebashi Gunma Prefecture Yoshida Iron Works Co., Ltd. In-house

Claims (2)

[Claims] 1. A strip steel feed mechanism unit for writing marks such as characters, figures and symbols at predetermined intervals on a long strip steel used as a Sinai ruler, and a strip steel feed drive unit, A strip steel supply reel arranged on the strip steel introduction side of the strip steel feed drive unit, and in the length direction of the strip steel provided on the strip steel transfer path between the strip steel feed drive unit and the strip steel supply reel. A mark writing device that can move along, and a steel strip take-up reel arranged on the steel strip feeding side of the steel strip feeding drive unit, wherein the steel strip feeding drive unit is introduced from the mark writing device side. A reel-shaped drive roller for winding the strip steel around the outer peripheral surface, and a support plate fixed to the frame of the drive roller to the outer peripheral surface of the drive roller around which the strip steel is wound through pressures such as springs, respectively. To the output shaft of the drive roller An apparatus for manufacturing a Sinai ruler for steel frame processing, comprising: a plurality of tension pulleys arranged in a radial pattern. 2. A plurality of tension pulleys in a strip steel feed drive section are radially arranged on a peripheral surface of at least one quarter of the side of the drive roller facing the strip steel introduction side. Equipment for manufacturing the Sinai ruler for steel frame processing described.