The present disclosure relates to, in a technical field of production lines for continuously-processed materials such as steel pipe and profile steel, a novel method of cutting off materials with a fixed length in the state that cutting-off machine has a same moving speed as the production line, and specifically relates to a novel method for synchronous and fixed-length cutting-off of continuously-processed materials through multiple cutter holders arranged in series.
Most existing cutting-off machines on production lines for continuously-processed materials such as steel pipes and profile steel are single-cutter holder synchronous and fixed-length cutting-off machines. For such cutting-off machines, only one cutter holder provided with a cutter is available. When a material has moved across a preset length, the cutter holder begins to move from an original point on a track parallel to the material, following the material. When a moving speed of the cutter holder becomes the same as that of the material, a cutter on the cutter holder cuts off the material and then the cutter holder returns back to the original point and prepares for next cutting-off. A travelling distance of the cutter holder is smaller than a fixed length of the material, to ensure that there is enough time for the cutter holder to return back to the original point after one cutting-off process is completed. As a speed of the production line is higher, the fixed length of the material is smaller and thus the time for the cutter tool to cut off the material is shorter. Such cutting-off machine is not suitable for producing short fixed-length products and not suitable for a high-speed production line either, since quality of notches is bad and service life of the cutters is short due to the short time for cutting off the material. Therefore, it is necessary to develop a novel method of cutting-off materials.
In order to overcome the defects of the prior art, the present disclosure proposes a novel method for synchronous and fixed-length cutting-off of continuously-processed materials through multiple cutter holders arranged in series. The specific technical solutions are described as follows: providing two or more cutter holders each provided with a cutter, wherein the cutter holders are installed in series on tracks parallel to a material, and are driven by their respective driving devices to move back and forth according to a set procedure; and in the case that a moving speed of the cutter holders becomes the same as that of the material, the cutters on the cutter holder cut off the material according to a set length. For convenience of description, working process is described by taking a double-cutter holder series-arrangement synchronous and fixed-length cutting-off machine as shown in
The double-cutter holder series-arrangement synchronous and fixed-length cutting-off machine is shown in
The double-cutter holder series-arrangement synchronous and fixed-length cutting-off machine is provided with two cutter holders, wherein cutter holder 1 and cutter holder 2 are installed in series on tracks 4 parallel to a material 3, and can be installed on the same track or on their respective tracks. As shown in
as shown in
The multi-cutter holder series-arrangement synchronous and fixed-length cutting-off machine has the similar operating principle as the double-cutter holder series-arrangement synchronous and fixed-length cutting-off machine, and has two or more cutter holders. These cutter holders are installed in series on the tracks which parallel to the material. The cutter holders may be 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 devices to move back and forth in a set procedure, 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 have more time to cut off the material. Such a cutting-off machine can thus be adapted to a high production line speed, allow smaller minimum fixed length, longer service life of the cutters, better quality of notches and less number of times of halts to replace the cutters.
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
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.
Number | Date | Country | Kind |
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201610018663.5 | Jan 2016 | CN | national |
Filing Document | Filing Date | Country | Kind |
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PCT/CN2016/074532 | 2/25/2016 | WO | 00 |