30results about How to "Improve profile quality" patented technology

The invention relates to the technical field of glass molding, in particular to equipment for bending of a glass panel, and particularly provides a ceramic die for bending molding of the glass panel.The ceramic die comprises a ceramic terrace die and multiple electric heating elements, the ceramic terrace die is provided with side walls and a bottom wall, the electric heating elements are arranged in the bottom wall, the outer surface of the bottom wall is provided with a convex molded surface, a vacuum cavity is formed in the ceramic terrace die, and negative pressure can be generated in thevacuum cavity; at least one partition vacuum mechanism is further additionally arranged in the vacuum cavity, each partition vacuum mechanism is provided with a partition vacuum cavity, and partitionnegative pressure can be generated in the partition vacuum cavities. The ceramic die can meet the requirement of front windshields with HUD areas, installing areas of rainwater sensors or light sensors or other optical elements and installing areas of cameras bending molding, and can lower the glass molded surface fluctuation, and finally, the glass panel with higher-quality molded surfaces is obtained; moreover, the bending molding quality of peripheral sides with higher molding difficulty can be guaranteed.

The invention relates to a method for vacuum supply of a calibration tool (4a, 4b; 5a, 5b), comprising at least one dry calibration tool (4a, 4b) and at least one calibration tank (5a, 5b). According to the method described, at least one vacuum pump (17a, 17b, 17c, 17d) is required to be connected to the calibration tool (4a, 4b; 5a, 5b) in order to extract air from the calibration tool (4a, 4b; 5a, 5b), Adjust the pressure in the calibration tool (4a, 4b; 5a, 5b) to the nominal value through the regulating valve (13, 15). The purpose of the invention is to reduce energy consumption and improve the quality of produced profiles. In order to achieve this purpose, a plurality of vacuum pumps (17a, 17b, 17c, 17d) extract air from a common pressure vessel (16) and draw air from at least one dry in said common pressure vessel (16) through a first regulating valve (13). The calibration tool (4a, 4b) extracts air and, in addition, air is extracted from at least one calibration tank (5a, 5b) in the common pressure vessel (16) via a second regulating valve (15). Furthermore, the invention relates to a device for carrying out said method.

The invention relates to an absorbable bone plate profiling shaping structure and a method thereof, which belong to the technical field of absorbable bone plates. The plate fixing jig includes a plurality of jig joint units connected end to end and a connecting shaft arranged between every two adjacent jig joint units, and every two adjacent jig joint units are hingedly connected by the connecting shaft, and the bone plate fixing jig The body of the absorbable bone plate is relatively fixed on the top, and the frame is fixed with a plurality of driving parts. Each driving part is fixed to one end of the corresponding connecting shaft to drive the connecting shaft to move upward. A heating device is installed inside the connecting shaft, which can A cooling system for cooling is installed on the upper part of the absorbable bone plate to overcome the limitations of the absorbable bone plate in the curved surface environment of the fracture site, greatly reduce or eliminate the internal stress of the absorbable bone plate, and improve the performance of the absorbable bone plate. strength and longevity.

The invention discloses a process for strengthening the milling rigidity of an aluminum-alloy ultrathin-blade integral impeller. The process comprises the following steps: firstly layering the ultrathin blade of the integral impeller; reserving rough machining allowance; and carrying out layered finish machining on the ultrathin blade. According to the invention, resonance of the whole blade is reduced via non-uniform allowance and transition fillets between each layer, so vibration of the ultrathin-blade integral impeller caused by influence of cutting force in cutting can be effectively reduced, the molded surface quality and curved surface precision of the blade milled by a cutter and dimensional stability of the impeller are improved, and cutting efficiency is significantly enhanced.

The invention relates to an improved mould for out-of-furnace press forming of an automobile laminated glass. The improved mold comprises a convex mold (6) and a concave mold (20). The mold is characterized in that the concave mold (20) is provided with a side pre-press forming mechanism (21) and a glass following positioning mechanism (22), the side pre-press forming mechanism (21) comprises a side pre-press cylinder (31), a pre-press rotating shaft structure (32) and a concave mold side structure (18), and the glass following positioning mechanism (22) comprises a positioner rotating shaft (24), a positioning servo motor (25), a positioning speed reducer (26), a positioning coupler (27), a transmission gear (28), a rack (29), a positioner bracket (30), a positioning cylinder (33) and a positioning stop (34). Compared with the prior art, the mold has the advantages of meeting the quality and property requirements for the molded surface, goodness of fit, optical properties of glass products with a large spherical surface, a large span, high large arch rise and great side contour curvature change, improving the yield and the like.

The invention relates to a copper bar roller alignment device for a motor rotor coil edgewise-winding machine, and belongs to the technical field of generator rotor coil edgewise-winding. The copper bar roller alignment device for the motor rotor coil edgewise-winding machine is characterized by comprising a bottom plate, baffle plates, a single support, an integrated support, side pressure plates, positioning plates, support plates, floating pressure blocks and roller rotating shafts, wherein the single support and the integrated support are provided with adjustable notches and the floating pressure blocks which are connected together with the roller rotating shafts, and are fastened on a working platform by bolts; the side pressure plates are fastened on the two sides of each of the single support and the integrated support by the bolts; and the baffle plates, the positioning plates and the support plates are arranged at left and right ends by the bolts. The device has the advantages of saving cost, reducing consumption and widening the working range of the edgewise-winding machine, along with simple structure, high processibility, convenience of manufacture, copper bar stressing uniformity, high profiling quality and the like.

A control method for heat-insulating layer structural uniformity belongs to the technical field of solid rocket motor heat-insulating layer manufacturing, The method sequentially includes the steps: preparation, evacuation, inflation and exhausting, inflation and rotation. The structural uniformity of the heat-insulating layer can be improved through the above steps. Due to the conversion between the inflation and the exhausting of a rubber air bag and the speed controlling of the inflation and exhausting, uniform bulge of each portion of the rubber air bag can be ensured, and the displacement of a sinker arranged on the upper portion of the rubber air bag can be avoided. After the basic bulge of the rubber air bag, rotation and adjustment are conducted, the influence on the thickness of the heat-insulating layer sinker by the gravity can be solved, and thus the purpose of the complete structure and the uniform thickness of the heat-insulating layer can be achieved. The control method for the heat-insulating layer structural uniformity is applied to products in various models, remarkably improves the profile quality of the heat-insulating layer, solves the quality problem that the thickness of the heat-insulating layer is not uniform, and passes the ground test of motors.

The present invention relates to double curvature plate cold pressing formation method and apparatus. The formation process includes the following steps: determining the rebound elasticity of cold pressed steel plate, determining the curvature radius and size of upper and lower working plates, setting plate material, cutting, pressing, etc. The formation apparatus includes upper pressing mold, lower pressing mold, reinforcing ribbed plates welded onto the top plate, upper working plate, lower working plate and bottom plate, and oil press. The present invention makes it possible to produce high quality double curvature plate with smooth surface.

The invention relates to the technical field of glass forming, particularly to glass plate bending equipment and provides a glass plate bending ceramic die. The glass plate bending ceramic die comprises a ceramic terrace die, a cover plate and a plurality of electric heating elements, wherein the ceramic terrace die comprises a side wall and a bottom wall; the glass plate bending ceramic die also comprises at least three hanging devices, the outer surface of the side wall is provided with at least three positioning blind holes, every hanging mechanism comprises a fixing device and an inserting device, the top end of the fixing device is fixedly connected to the lower surface of the cover plate, the outer end of the inserting device is fixed onto the fixing device, and the inner end of the inserting device can be inserted into the corresponding positioning blind hole. The glass plate bending ceramic die can avoid the problems of expansion, breakage and the like in local connected parts during application and reduce fluctuation of low glass profiles to produce finished glass plates with higher profile quality and meanwhile to ensure the bending quality of circumferential edges which are higher in forming difficulty.

The invention relates to a core mold and a shaping method for a shaping strip annular internal reinforced rib rotary body thin-wall part, wherein a base mold is composed of a base mold main body and a mold withdrawing end; a swallow tail groove and a positioning groove are formed on the base mold main body; a shape mold is wholly of an annular structure; the shape mold is uniformly divided into a plurality of split molds of same shapes; shaping arc grooves for annular internal reinforced ribs are formed on the shaping plane of the split molds; swallow tail tenons matched with the wallow tail groove and the positioning groove are formed on the inner surfaces of the split molds. By adopting the mode of combined core mold, the problem of hard demolding during the shaping process of the rotary body thin-wall part internal reinforced rib is solved. By virtue of the positioning on the base mold swallow tail groove, the movement of the shaping mold is prevented effectively; and the shaping precision of the rotary body thin-wall part internal reinforced rib is improved. The base mold, the shaping mold and the fixing pin of the core mold can be made of different metal materials according to respective strength requirements; only the mold needs to be replaced for rotary body thin-wall pieces of which the inner diameters are the same and the internal reinforcing ribs are different, so that the cost of the mold is reduced greatly.

The invention relates to a forming tool for a composite fan blade laminate unit body, the forming tool includes a laying platform (1) and a laying working surface (2) arranged on the laying platform (1), during the laying work Both sides of the surface (2) are provided with lay-up reference blocks (3) as lay-up references, and the number of lay-up working faces (2) is the same as the number of lay-up units in the tenons of composite fan blades. Adopting the tooling described in the present invention can use the ply unit body to form in batches in advance, and at the same time, when laying up the ply unit body, the symmetrical concave surface and convex surface unit body can be formed on the same molding die surface at one time, which improves the profile of the unit body quality. The pre-formed ply units are then placed on the blade forming tooling as integral laminate blocks during the composite fan blade layup process. Under the premise of ensuring the accuracy of the surface of the ply unit, the operation time of blade ply laying can be greatly shortened, and the production efficiency of the blade can be improved.