NOVEL METHOD FOR SYNCHRONOUS AND FIXED-LENGTH CUTTING-OFF OF CONTINUOUSLY-PROCESSED MATERIALS THROUGH MULTIPLE CUTTER HOLDERS ARRANGED IN SERIES

Abstract

A method for synchronous and specified-length cutting of continuously-formed materials by multiple lathes connected in series in production lines of continuously-formed materials, such as steel pipes and steel sections. A synchronous and specified-length cutting machine having multiple lathes connected in series is provided with two or more lathes that are separately equipped with a cutting tool. The lathes are installed in series on a rail parallel to a material and are driven by respective driver means to move back and forth according to a set procedure; in the case that the speed of the lathe is synchronous with that of the material, the cutting tool on the lathe cuts the material according to a specified length. The cutting machine can be adapted to high-speed production lines, allows a small minimum specified length, possesses cutting tools having a long service life, and achieves smooth cuts.

Claims

1. A method for synchronous and fixed-length cutting-off of continuously-processed material through multiple cutter holders arranged in series, comprises: installing in series multiple cutter holders on tracks parallel to the continuously-processed material, the multiple cutter holders are driven by their respective driving devices to move back and forth on the tracks; when the continuously-processed material sequentially enters into a cutting-off range of each of the multiple cutter holders with a preset length in a feeding direction, said each of the multiple cutter holders cuts off the continuously-processed material according to a set length upon that a moving speed of said each of the multiple cutter holders becomes the same as that of the continuously-processed material.

2. According to the cutting-off method of claim 1, wherein, said each of the multiple cutter holders is accelerated from a starting point to a state of having the same moving speed as the continuously-processed material.

3. According to the cutting-off method of claim 2, wherein, said each of the multiple cutter holders returns back to the starting point after cutting off the continuously-processed material.

4. According to the cutting-off method of claim 1, wherein, said each of the multiple cutter holders is provided with a cutter for cutting off the continuously-processed material.

5. According to the cutting-off method of claim 1, wherein, the multiple cutter holders are installed on the same track or on different tracks.

6. According to the cutting-off method of claim 1, wherein, the tracks are disposed on a same side of the continuously-processed material or on two opposite sides of the continuously-processed material.

7. A multi-cutter holder series-arrangement synchronous and fixed-length cutting-off machine for continuously-processed material, comprising: tracks, which are disposed parallel to the continuously-processed material; multiple cutter holders, installed in series on the tracks; driving devices, being capable of driving their respective one of the multiple cutter holders to move back and forth on the tracks; and a control device, which is configured to control the driving devices to drive each of the multiple cutter holders to move on the tracks, so that when the continuously-processed material sequentially enters into a cutting-off range of said each of the multiple cutter holders with a preset length in a feeding direction, said each of the multiple cutter holders cuts off the continuously-processed material according to a set length upon that a moving speed of said each of the multiple cutter holders becomes the same as that of the continuously-processed material.

8. According to the cutting-off machine of claim 7, wherein, said each of the multiple cutter holders is accelerated from a starting point to a state of having the same moving speed as the continuously-processed material.

9. According to the cutting-off machine of claim 8, wherein, said each of the multiple cutter holders returns back to the starting point after cutting off the continuously-processed material.

10. According to the cutting-off machine of claim 7, wherein, said each of the multiple cutter holders is provided with a cutter for cutting off the continuously-processed material.

11. According to the cutting-off method of claim 7, wherein, the multiple cutter holders are installed on the same track or on different tracks.

12. According to the cutting-off machine of claim 7, wherein, the tracks are disposed on a same side of the continuously-processed material or on two opposite sides of the continuously-processed material.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0008] FIG. 1 is a schematic diagram showing that a cutter holder 1 is at a starting point and a cutter holder 2 follows and cuts off a material 3 in a specific embodiment of the present disclosure.

[0009] FIG. 2 is a schematic diagram showing that the cutter holder 1 and the cutter holder 2 follow and cut off the material 3 in a specific embodiment of the present disclosure.

[0010] FIG. 3 is a schematic diagram showing that the cutter holder 1 follows and cuts off the material 3 and the cutter holder 2 returns back after the cutting-off is completed in a specific embodiment of the present invention.

[0011] FIG. 4 is a schematic diagram showing that the cutter holder 1 and the cutter holder 2 return back after completing the cutting-off in a specific embodiment of the present disclosure.

[0012] FIG. 5 is a schematic diagram showing that there are different tracks in the present disclosure.

[0013] FIG. 6 is a schematic diagram showing that a cutter on the cutter holder 1 is not cutting.

[0014] FIG. 7 is a schematic diagram showing that the cutter on the cutter holder 1 is cutting.

DETAILED DESCRIPTION

[0015] Now, the implementations of the present disclosure will be further described by reference to a double-cutter holder series-arrangement synchronous and fixed-length cutting-off machine, which is one implementation of the multi-cutter holder series-arrangement synchronous and fixed-length cutting-off machine. The double-cutter holder series-arrangement synchronous and fixed-length cutting-off machine mainly includes cutter holders 1, 2, tracks 4, a base 8, driving devices 5 and 6, and cutters 7 and 9. The cutter holders 1, 2 are installed in series on the tracks 4 parallel to a material 3. The cutter holders 1, 2 may be install on a same track 4, or installed on their respective tracks 4. The cutter holders 1, 2 are driven by driving devices 5, 6 to move back and forth on their respective tracks 4 according to a set procedure. In the case that a moving speed of the cutter holders becomes the same as that of the material, cutters on the cutter holders cut off the material 3 alternatively in accordance with a set length. As shown in FIG. 1, the cutter holder 1 stops at its starting point; when the material 3 enters into a cutting-off range of the cutter holder 2 with a preset length, the driving device 6 is started to accelerate the cutter holder 2 from a starting point thereof; in the case that the moving speed of the cutter holder 2 becomes the same as that of the material 3, the cutter 9 on the cutter holder 2 begins to cut the material 3. As shown in FIG. 2, the material 3 continues moving, and in the case that the material 3 enters into a cutting-off range of the cutter holder 1 with a preset length, the driving device 5 is started to accelerate the cutter holder 1 from the starting point; and in the case that the moving speed of the cutter holder 1 becomes the same as that of the material 3, the cutter 7 on the cutter holder 1 begins to cut the material 3. As shown in FIG. 3, the cutter holder 2 returns back to the starting point thereof after the material 3 is cut off. As shown in FIG. 4, the cutter holder 1 returns back to the starting point thereof after the material is cut off. The double-cutter holder series-arrangement synchronous and fixed-length cutting-off machine repeats the above working process and cuts off the material in accordance with a set length, as long as the material on the production line is continuously processed.

[0016] Similarly, a multi-cutter holder series-arrangement synchronous and fixed-length cutting-off machine has two or more cutter holders. These cutter holders are installed in series on tracks parallel to a material. The cutter holders are installed on a same track, or installed on their respective tracks. The tracks can be disposed on a same side of the material or on two opposite sides of the material. These cutter holders are driven by their respective driving device to move back and forth in a preset sequence, and in the case that a moving speed of these cutter holders becomes the same as that of the material, the cutter holders cut off the material according to a set length. As the number of the cutter holders is greater, travelling distance of the cutter holders can be made to be longer and thus the cutters will have more time to cut off the material. Such a cutting-off machine can thus be adapted to a production line with a higher speed, allow smaller minimum fixed length, longer service life of the cutters, better quality of notches and less number of times for halts to replacement the cutters.