45results about How to "High precision in sizing" patented technology

The invention relates to the technical field of bar production, in particular to a high-precision and high-efficiency fixed-length shearing control method and device for bars. The method comprises thefollowing process flows that a first shearing device and a second shearing device are installed above a bar conveying rail, the distance between a shearing tool of the first shearing device and a shearing tool of the second shearing device is set between 9.02 m to 9.03 m; a first material blocking plate and a second material blocking plate are hinged to the front of the first shearing device andthe front of the second shearing device, touch switches are installed on the two material blocking plates correspondingly, the distance between the first material blocking plate and the shearing toolof the second shearing device is set between 9.02 m and 9.03 m, and the distance between the second material blocking plate and the shearing tool of the second shearing device is set between 12.02 m and 12.04 m. The method and the device provided by the invention have the advantages that the fixed-length shearing precision and efficiency are higher, and the production cost of enterprises is effectively reduced.

The invention discloses a continuous casting billet laser sizing system. The continuous casting billet laser sizing system comprises a PLC unit, a laser detection unit, a display unit and a calculation unit, wherein the PLC unit controls a roller bed of a continuous casting machine and a flame cutting machine; the laser detection unit is connected with the PLC unit and is used for detecting relative positions of continuous casting billets; the display unit is connected with the PLC unit and is used for monitoring operating conditions of the whole system and allowing workers to input necessary data during debugging; the calculation unit is connected with the PLC unit and is used for converting the relative positions, detected by the laser detection unit, of end surfaces of the continuous casting billets into actual lengths of the continuous casting billets. The continuous casting billet laser sizing system has the advantages of being high in sizing precision, stable and simple in calibration, easy to install, debug, operate and maintain, low in operation cost and accurate in cutting, improves sizing rate and yield and reduces rejection rate.

The invention discloses an automatic scale measure mechanism for steel bar straightening and cutoff equipment, belonging to the technical field of automatic strengthening and cutoff of disc steel bars. A scale measure wheel of the automatic scale measure mechanism is connected in a flexible fixation manner, the selection direction of a single steel material at the present stage is abandoned, the habitual thoughts about material selection of the traditional scale measure wheel are overcome, and a dismountable structure which adopts combination of a soft nonmetal material friction sleeve belt and a hard base wheel is creatively provided; during work, the friction sleeve belt can be rapidly replaced in the case of abrasion, which is not like the manner that the overall traditional scale measure wheel needs to be replaced in the case of abrasion, thus the use cost of the scale measure wheel is greatly lowered; when the friction sleeve belt is in contact with a steel bar moving at high speed, a high friction coefficient between the friction sleeve belt and the steel bar can be guaranteed, thus slip phenomenon is farthest reduced, and the automatic scale measure mechanism has a quite high sizing accuracy. The automatic scale measure mechanism disclosed by the invention solves the problems of abrasion, slip and sizing accuracy that cannot be solved by the existing high-cost technologies with low cost, and changes the development direction of the technical field of the current steel bar strengthening and cutoff.

The invention relates to a device for improving the precision of special steel bar grouping and sizing, which includes a sizing frame, a sizing baffle mounted on the sizing frame, a baffle lifting device and a baffle displacement device, the baffle lifts The device includes a lifting hydraulic cylinder and a crank connecting rod. One end of the crank connecting rod is hinged with the piston rod of the lifting hydraulic rod, and the other end is hinged with the baffle plate. Hinged; the baffle plate displacement device includes two push mechanisms, both of which are hinged with the fixed-length baffle, and the push mechanism includes a displacement hydraulic cylinder and a connecting rod, and one end of the connecting rod is connected to the displacement hydraulic cylinder The piston rod is hinged, and the other end is hinged with the fixed-length baffle; both the lifting hydraulic cylinder and the displacement hydraulic cylinder are controlled by a PLC control system. The invention compensates the transverse temperature deviation and the longitudinal temperature deviation of the grouped multiple-length parent materials, and greatly improves the length-setting accuracy of the length-setting machine.

The embodiment of the invention discloses a fixed size machine and an application method thereof. According to the fixed size machine, a sliding screw pair structure comprising a sliding spiral lead screw and a sliding spiral nut is adopted, the parameters of a thread, the screw pitch and the like of a sliding spiral pair are set in a matched manner, and it is guaranteed that the fixed size machine cannot move when bearing the large axial horizontal impact load, so that the fixed size accuracy is high, and the sliding screw pair has the beneficial effects of being simple in structure, stable in operation, low in noise, high in screwing accuracy, large in transmission ratio and the like. A guide device is arranged, a feeding workbench can be supported effectively through the guide device, and the situation that the fixed size machine rotates along with rotation of the sliding spiral lead screw is prevented, so that flexibility deformation is lowered; and in addition, a pneumatic device is adopted for the fixed size machine and arranged on the top face of the feeding workbench, the compactness of the fixed size machine is further guaranteed, space is saved, and the fixed size machine has the beneficial effects of being simple in structure, convenient to maintain, high in automatic control level and short in response time.

The invention relates to a shear gauge system and a use method thereof. The shear gauge system comprises a feeding worktable, a chain wheel mechanism, a bearing mechanism, sliding screw mechanisms and a shear gauge, wherein the bearing mechanism comprises a guide groove, supporting plates and an upper friction plate; the feeding worktable is arranged on the guide groove in a slidable manner through vertical roll assemblies; a lower pressing plate is fixedly connected onto the feeding worktable; the upper surface of the lower pressing plate is in contact with the lower surface of the upper friction plate; each sliding screw mechanism comprises a welding nut fixed on the feeding worktable and a fastening bolt which are matched with each other, and the bottom of the fastening bolt is in contact with the corresponding supporting plate; the chain wheel mechanism comprises a roller chain and a first chain wheel and a second chain wheel which are meshed with the roller chain; and the shear gauge is fixedly connected onto the feeding worktable. During a use process, the sliding screw mechanisms are adjusted, so that the upper friction plate is matched with the lower pressing plate; high static friction force is provided, so that the shear gauge does not deflect under high-load impact, and the sizing precision is improved; and furthermore, the chain wheel mechanism has the advantages of high precision, abrasion-resistance, small spatial size and the like.

The invention relates to a sizing mechanism of aluminum bar hot shears. The sizing mechanism comprises a sizing rack (10.1). The sizing rack (10.1) is provided with a sizing frame (10.2) which can move forward and backward, a fixed support base (10.3) is arranged on the front side of the sizing frame (10.2), a sizing stop bar assembly (10.4) is hinged to the fixed support base (10.3), a cylinder frame (10.5) is arranged on the back side of the sizing frame (10.2) and provided with a cylinder base (10.6), a first cylinder (10.7) is hinged to the cylinder base (10.6), and the first cylinder (10.7) and the sizing stop bar assembly (10.4) are connected through a connecting rod mechanism (10.8). When the sizing stop bar assembly is collided by an aluminum bar, and a first connecting rod and a second connecting rod are located at dead point positions so that the sizing stop bar assembly in the sizing process can be effectively prevented from being deflected, and the positioning accuracy of aluminum bar sizing is greatly improved.

The invention relates to a sawing machine with automatic cut-to-length control function. The sawing machine comprises a sawing machine workbench, a sawing machine support arm, a photoelectric encoder, a sawing machine feed frame, a guiding rule and a control circuit, wherein a workpiece to be detected is arranged on a roll of the sawing machine feed frame, the front end of the workpiece passes through the sawing machine support arm and is placed on the workbench; the guiding rule is arranged at the front end of the workpiece to be detected; an encoder bracket is fixed at the radial side of the workpiece on the workbench; the photoelectric encoder and a depended wheel are fixed on the cantilever at the front end of the encoder bracket; the photoelectric encoder and the depended wheel are coaxially arranged, and the depended wheel is arranged on the top end of the periphery of the workpiece to be detected. The cut-to-length device is controlled by a counter and detected by adopting the photoelectric encoder, and is assisted by the guiding rule, so that the cut-to-length accuracy of the sawing machine is greatly improved, the production efficiency is improved, and the rejection rate is reduced.

The invention relates to the technical field of cutting and processing of sections, and discloses a device for improving production efficiency of a section cutting machine and a use method thereof. The device is matched with the section cutting machine, and comprises a charging bracket and a sizing mechanism, wherein the charging bracket is positioned at the material inlet end of the section cutting machine, and comprises a bracket base and two parallel symmetric rib plates; the two parallel symmetric rib plates are fixedly connected with the bracket base, and two support trays are arranged between the two rib plates; the sizing mechanism is positioned at the material outlet end of the section cutting machine, and comprises a sizing base and a baffle plate, the baffle plate is fixedly connected with the sizing base, the sizing base is provided with a scale, one end of the scale is fixedly connected with the section cutting machine, and the other end of the scale is connected with the sizing base through a bolt. The device has the advantages that the two pipes can be sequentially cut and processed, and the pipe positioning type of the section cutting machine is improved; the problem of difficult clamping due to the overlong material is solved, the verticality and processing accuracy of cutting surfaces are guaranteed, and the size accuracy is increased to 0.5mm.