41results about How to "Improve coiling quality" patented technology

The invention relates to a mechanical transmission method, in particular to a driving mechanism of a multi-head scroll recoiling machine which satisfies special requirements of belt material coiling or cord winding. The driving mechanism comprises an electromotor and a decelerator. The driving mechanism is characterized in that an output shaft of the decelerator (2) which is connected with an electromotor (1) is engaged with a plurality of coupling transmission ladles (4) by a distribution gear (3); each transmission ladle (4) transmits kinetic moment and velocity to two scrolls (5) connected thereon; and rotation speed of each scroll can be self-adjusted according to length of the recoiled stripe. The driving mechanism changes traditional strip-by-stripe recoiling technique of belt material, thereby compacting machine unit distribution, reducing equipment investment, simplifying operation and improving recoiling quality. The driving mechanism further realizes flexible winding of multi-head cords.

A roller guiding system for thin strips (20) at a rolling system outlet which allows a safe guiding without take-off and consequent tipping/folding of the head of the strip and without cobbles even at high feeding speeds. The system of the invention prevents the strip from impacting or sliding on the upper containment devices (8) or on the rollers (4′) by its upwards or downwards movement, thus avoiding possible damages to the surface, such as scratches or lines. Furthermore, such a guiding system acts on the mechanical-aerodynamic phenomenon which causes instability in the head moving by making a self-centering guiding system which is thus suitable for improving the winding quality of the coil itself.

The invention relates to a winding, cutting and beginning device for a coating machine, which comprises a rotating mechanism and a cutting mechanism, wherein the rotating mechanism is arranged on the coating machine to be in a state rotationally corresponding to a receiving roller; and the cutting mechanism is arranged on the rotating mechanism to be in a state that while feeding to a feed roller, the coating machine for cutting is jointed with and feeds to another receiving roller. The winding, cutting and beginning device has the benefits that the structure is simple, the operation is convenient, stable cutting and winding can be performed, and the beginning of new winding is ensured to be level.

The invention relates to a machining process of a high-strength steel coil pipe. The machining process of the high-strength steel coil pipe sequentially comprises the following steps of blanking, edgemilling and beveling, pre-bending, three-roller type plate rolling machine roller bending, straight seam welding and ring welding; before the plate rolling machine roller bending is carried out, theresilience of a steel plate is measured firstly, then the pipe coiling diameter is calculated when an actual pipe forming is carried out, the total lower displacement amount of an upper working rolleris calculated in the pipe coiling forming process, the pass displacement of the upper working roller is determined, and the pipe coiling machining is completed through a plurality of plate rolling; the pass displacement of the upper working roller is gradually decreased, and the first-pass displacement amount accounts for 50% or above of the total lower displacement amount, and the first three pass total displacement finishes 90% or above of the total lower displacement amount, and the upper working roller is basically in place when at least the antepenultimate pass is carried out. Accordingto the process, the displacement of the working roller can be effectively controlled, so that a high-strength steel plate with a proper size can prepare a dredging pipe with good straightness on a plate rolling machine, the gap of a pipe body does not exceed 3 mm at the end of the plate rolling, and welding can be carried out without circle rolling is performed, and the ovality of the pipe body isless than or equal to 2 mm.

The invention relates to a coiling method of an oriented silicon steel MgO coated steel coil. The method comprises the following steps: 1, carrying out initial coiling on the steel coil on a coiler mandrel in a constant tension control coiling mode; 2, switching the tension control mode to a gradual decrease tension linear control mode; 3, switching the tension control mode to the constant tension control coiling mode; 4, switching the tension control mode to a gradual increase tension linear tension control mode; and 5, switching the tension control mode to the constant tension control coiling mode. The coiling method can effectively prevent the occurrence of coil collapse, inner and outer ring mandrel sideslip and other defects.

The present invention discloses a method for improving the solenoid dispensing water resistance, comprising a base, said base top surface of the fixed mounting support column slidably mounted threaded rod of the boom, the bottom of the threaded rod fixedly mounted may coil for dispensing of the dispensing head, when the dispensing start lifting the motor, the lifting motor drives a first gear, a first gear rotatably drives the second gear, the second gear rotates the threaded rod may be down to the coil dispensing improved dispensing manner, increasing the efficiency of dispensing can be generated after a significant reduction dispensing bubbles, to improve the quality of the coil, glue extrusion by pressurizing the way, bubbles in the glue are deposited After the dispensing is completed, use the vibration method to shake the air bubbles in the coil to make the coil have better quality.

The invention relates to an automatic pipe coiling machine. A motor is fixed below a platform, a rotary table is arranged on the platform, and an output shaft of the motor is connected with the centerof the rotary table; a spiral gradual groove is formed in the rotary table, clamping buckle grooves are formed in the spiral gradual groove, clamping buckles can be embedded in the clamping buckle grooves, and the surface of each clamping buckle and the spiral gradual groove form a continuous groove shape; a downward-press bounce mechanism is arranged on the rotary table and comprises three or more elastic parts, each elastic part comprises a low segment, a fixed segment and a high segment, and each fixed segment is fixed on the rotary table; each low segment extends into the spiral gradual groove, through holes for containing the low segments are formed in the spiral gradual groove, the surface of each low segment and the spiral gradual groove form a continuous groove shape, and a downward-press block is fixed to the end of each high segment; a support is fixed on the platform, a downward-press air cylinder is fixed on the support, the retractable end of the downward-press air cylinder is downwards connected with an upward-press block, and the upward-press block is located over the downward-press block. By means of the automatic pipe coiling machine, automatic pipe coiling can beachieved, and the pipe coiling quality is high.

The invention provides a method and device for reducing reeling resistance of a reeling machine. The prior reeling device is unreasonable in structure, and can generate larger resistance in the reeling process. The technical proposal of the invention comprises: a structural shape of a second holding frame in the prior reeling device is improved from the original straight line type to the parabola type, so that the forced directions of a reeling wheel are separated to reduce the reeling resistance. The method and the device have the advantages that the parabola type holding frame replaces the straight line type holding frame, force applied to the face is partially separated to the holding frame, thereby avoiding the force from being completely applied to the reeling wheel, reducing the reeling resistance, effectively utilizing dynamic force, reducing probability of damaging the reeling wheel, improving reeling quality and prolonging service life of the equipment.

The invention discloses an integrated control method for additional shape waves in a steel coil unloading and cooling process. According to the method, features of devices and technologies in a steel coil coiling process are fully combined, anisotropy of the steel coil is considered for the first time, and a polynomial curve fitting mode is adopted to set a radial stress distribution of the inside of the steel coil, and then a circumferential stress, a friction stress and compactness coefficients of the interior of the steel coil are deduced. A rapid calculation method for thermal stress in the steel coil unloading and cooling process is established by means of a yield condition judgment. The method has the advantages that by means of a solving of a stress field of the steel coil cooling, and possible additional shape waves in the steel coil cooling process are forecasted, thereby by means of adjusting coiling process, producing of the additional shape waves of the steel coil can be controlled and the steel coil coiling quality can be improved.

The invention belongs to the field of thin-strip continuous casting, and relates to an edge quality control technology of thin strip steel produced through thin-strip continuous casting, in particular to a production control method for improving flanging of a thin-strip continuous casting thin strip steel coil. By controlling the H content of continuous casting molten steel and the baking time of various refractory materials before casting, the H content of the molten steel in a molten pool in the continuous casting process of thin strip steel is controlled, the heat conduction efficiency between the molten steel on the edge of the molten pool and a crystallization roller is improved, the thickness of a blank shell obtained by molten steel solidification is increased, and the influence of static pressure of the molten steel on the edge thickness of the continuous casting thin strip steel is reduced. Meanwhile, by measuring the difference value between the maximum value and the minimum value of the thickness of the thick area of the edge area of the thin strip steel, a mathematical model of the edge pressure of the crystallization roller and the difference value is established, and the control value of the edge pressure of the crystallization roller is adjusted in real time. The problem of flanging of the strip steel coil in the thin-strip continuous casting thin strip steel production process can be solved, so that the edge quality of the thin strip steel coil and the product percent of pass are improved.

The invention discloses a plate rolling machine capable of achieving circulating lubrication, and belongs to the technical field of plate rolling machines. According to the scheme, an upper rolling wheel is filled with lubricating liquid, and the lubricating liquid flows to a self-lubricating rotating shaft to lubricate the upper rolling wheel in the rotating process of the upper rolling wheel; meanwhile, redundant lubricating liquid is transferred to first-stage liquid collecting cavities in collecting rings on the two sides through a liquid storage channel formed in the self-lubricating rotating shaft, then the lubricating liquid is transferred to second-stage liquid collecting cavities in the rotating rings through guide pipes in the rotating rings, the lubricating liquid is guided into the upper rolling wheel through the second-stage liquid collecting cavities, and complete lubricating liquid circulation is formed; the lubricating effect is improved, the lubricating liquid is saved, meanwhile, the heat dissipation effect is improved, and the quality of produced rolled plates is further improved.

The invention provides a rubber roller auxiliary rolling machine and an auxiliary rolling device. The rubber roller auxiliary rolling machine comprises a base, wherein a main machine is slidably arranged on the base, a driving cylinder is fixedly arranged on the base, a piston rod of the driving cylinder is connected with the main machine, an upper swing arm and a lower swing arm are hinged to the main machine, a space for containing a coiling block is formed between the upper swing arm and the lower swing arm, a plurality of rubber rollers protruding the inner wall are movably arranged on each of the upper swing arm and the lower swing arm, and a plurality of guide plates are movably arranged among the rubber rollers and the outer side end of the upper swing arm. The invention provides the rubber roller auxiliary rolling machine and the auxiliary rolling device, and the rubber rollers arranged on the upper swing arm and the lower swing arm are used for replacing belt auxiliary rolling structures in the prior art, so that the structure is simplified, processing and manufacturing are convenient, and the maintenance is also very convenient. After the structure is adopted, the wrap angle of the coiling block is also increased, and the coiling quality is improved. The guide plates are arranged, so that interference to the ends of belt materials among the rubber rollers is overcome, and the full-wrap-angle compressing of the belt materials on the coiling block is realized.