Abstract: When changing product specifications in the existing longitudinal seam steel pipe production lines, manual operations on line are generally used to replace an entire set of rollers that need to be replaced while the production lines are shut down, or robots are used to replace rollers in a fully automatic manner, but the equipment for roller replacement by robot takes up a lot of space and is expensive. The present implementations provide a three-dimensional quick replacement machine for a production line, which completes the entire operation of specification change by providing a first unit, a second unit, a three-dimensional frame, a forming base, and a switching device, the switching device drives the first or second unit to move up and down in the three-dimensional frame, and the first and second units are alternately installed on the forming base to achieve the change of specification in the production line.

Abstract: Provided is a plate material edge trimming machine. By means of providing a lifting component that is capable of adjusting the position of a working cutting edge of an edge trimming cutter and a swinging device that is capable of changing the working angle of the edge trimming cutter, the cutter changing period of the edge trimming cutter is prolonged, and the usage and machining range of a production line is expanded, thereby improving the working efficiency of the production line.

Abstract: Disclosed is a flattening device, comprising: a rack; a material-pressing component, which is provided on the rack and has a material-pressing part; a material-guiding component, which is provided on the rack and has a material-guiding part corresponding to the material-pressing part, the material-pressing part and the material-guiding part being configured to be able to bear against two sides of a sheet material respectively, so as to form a flattening channel between the material-guiding part and the material-pressing part; and an adjusting component, which drives at least one of the material-pressing component and the material-guiding component to move, so as to adjust the distance between the material-pressing part and the material-guiding part. Further disclosed are a material-conveying apparatus including the flattening device and a sheet material processing system comprising the material-conveying apparatus.

Abstract: Disclosed is a flattening device, comprising: a rack; a material-pressing component, which is provided on the rack and has a material-pressing part; a material-guiding component, which is provided on the rack and has a material-guiding part corresponding to the material-pressing part, the material-pressing part and the material-guiding part being configured to be able to bear against two sides of a sheet material respectively, so as to form a flattening channel between the material-guiding part and the material-pressing part; and an adjusting component, which drives at least one of the material-pressing component and the material-guiding component to move, so as to adjust the distance between the material-pressing part and the material-guiding part. Further disclosed are a material-conveying apparatus including the flattening device and a sheet material processing system comprising the material-conveying apparatus.

Abstract: The steel strapping machine without using joint currently available from the market has three shortcomings. Firstly, packages cannot be strapped tightly. Secondly, a steel strap may get caught on a lower mold when the lower mold is taken out from underside of the steel strap. Thirdly, the strapping machine is not available for small packages. To overcome the shortcomings of the prior arts, the present disclosure proposes a separatable lower mold of the steel strapping machine without using a joint, which is formed as two parts being able to be closed together or separated from each other. The separatable lower mold has advantages that packages can be strapped tightly, the steel strap will not get caught on the lower mold when the lower mold is taken out from the underside of the steel strap and it is possible for the strapping machine to strap small packages.

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.

Abstract: The steel strapping machine without using joint currently available from the market has three shortcomings. Firstly, packages cannot be strapped tightly. Secondly, a steel strap may get caught on a lower mold when the lower mold is taken out from underside of the steel strap. Thirdly, the strapping machine is not available for small packages. To overcome the shortcomings of the prior arts, the present disclosure proposes a separatable lower mold of the steel strapping machine without using a joint, which is formed as two parts being able to be closed together or separated from each other. The separatable lower mold has advantages that packages can be strapped tightly, the steel strap will not get caught on the lower mold when the lower mold is taken out from the underside of the steel strap and it is possible for the strapping machine to strap small packages.