13results about How to "Fix the tear" patented technology

The utility model relates to a vertical storage battery frame mould pressing device which comprises a pre-impregnation device, a cantilever lifting appliance, a cutting and stacking device, a grabbing mechanical arm and a mould pressing main machine, the mould pressing main machine comprises a bearing bottom plate, a linear guide rail, a left mould pressing assembly, a right mould pressing assembly and a lead screw motor assembly, and a base for installing an inner mould is arranged between the left mould pressing assembly and the right mould pressing assembly. The inner mold is used for containing pre-pressing raw materials to be formed, the left mold pressing assembly and the right mold pressing assembly are used for pressing and forming the pre-pressing raw materials on the two sides of the inner mold, and the upper mold assembly is arranged between the left mold pressing assembly and the right mold pressing assembly and used for pressing and forming the pre-pressing raw materials on the upper end face of the inner mold. An ejection mechanism is arranged on the side, close to the lead screw motor assembly, of the inner mold, and a frame demolding mechanism is arranged on the side, away from the lead screw motor assembly, of the inner mold; the device has the advantages of being short in takt, high in efficiency, small in number of auxiliary devices, small in number of operators and low in production cost.

The invention provides a hot stamping forming die and a hot stamping forming method, belongs to the technical field of hot stamping, solves the problems of wrinkling and stacking of stamped plates, and adopts the scheme that the hot stamping forming die comprises a die steel block 2 used for hot stamping forming, the die steel block 2 is further provided with air blowing holes 1, and the air blowing holes 1 are communicated with the die steel block 2. The blowing hole 1 is a risk area determined according to the hot stamping forming of the plate 7, and the risk area refers to a small-range thinning excessive out-of-tolerance area or a cracking area of the plate 7 in the hot stamping forming process or a risk area determined when the hot stamping forming plate is subjected to simulation analysis in the early stage; and one end of the air channel pipe 4 penetrates through the die steel block 2 to be connected with the air blowing hole 1, and the air channel pipe 4 is used for cooling the hot stamping forming plate 7 through the air blowing hole. The cooling system is added for the risk area, so that the local temperature of the plate is lower than that of other parts, the austenite conversion rate is higher than that of other parts, and the tensile strength of the area is improved.

The present application relates to a kind of vertical battery frame mould pressing equipment and its mould pressing forming method, comprising: prepreg equipment, cantilever spreader, cutting and stacking equipment, grabbing manipulator and mould pressing host, mould pressing host includes: bearing base plate, linear guide, left mould pressing assembly, right mould pressing assembly, screw motor assembly, bottom plate for installing inner mould is arranged between left mould pressing assembly and right mould pressing assembly, inner mould is used to place the pre-press raw material to be formed, left mould pressing assembly and right mould pressing assembly are used to compress the pre-press raw material on the two sides of inner mould and form, upper mould assembly is arranged between left mould pressing assembly and right mould pressing assembly, upper mould assembly is used to compress the pre-press raw material on the upper end surface of inner mould and form, the side of inner mould close to screw motor assembly is provided with material pushing mechanism, the side of inner mould away from screw motor assembly is provided with frame body demoulding mechanism;The present application has the characteristics of short beat, high efficiency, less auxiliary equipment, less operator and low production cost.

The invention discloses an air column welding structure, a welding method and an inflatable tent framework, the air column welding structure comprises a plurality of pipe bodies, the plurality of pipe bodies are butted together to form a multi-way pipe joint, a first welding area for hermetically connecting the adjacent pipe bodies is arranged at the butted part of the adjacent pipe bodies, a first reinforcing sheet is welded on the first welding area, and a second reinforcing sheet is welded on the second welding area. Center holes are formed in the top center and the bottom center of the multi-way pipe joint, and sealing pieces and second reinforcing pieces are welded to the inner sides and the outer sides of the peripheries of the center holes correspondingly. The method has the advantages that the manufacturing process can be optimized, the production efficiency is improved, the product quality is ensured, and the production cost is reduced.

The invention discloses an ultrathin back-drilled base plate and a preparation method thereof, and a circuit board and a processing method thereof, and the ultrathin back-drilled base plate comprises a structural layer, a first adhesive layer disposed on one side of the structural layer, and a second adhesive layer disposed on one side, opposite to the structural layer, of the first adhesive layer. Wherein the structural layer is made of a composite material containing a first high-heat-resistance polymer and a reinforcing filler; the material of the first adhesive layer comprises high-molecular resin, and the high-molecular resin contains at least one of a second high-heat-resistance polymer and a hot-melt adhesive, wherein the main chain of the second high-heat-resistance polymer contains an aromatic ring and / or a heterocyclic ring; and the material of the second adhesive layer comprises a hot melt adhesive. According to the invention, extremely high physical rigidity and chemical barrier capability can be maintained in circuit board hot pressing and wet processing processes, and the defects of back drilling hole flashing and orifice retreating are effectively inhibited; and the controlled interface stripping force is utilized in the plate stripping stage, so that the integral pure physical tearing of the base plate is realized, the secondary erosion of chemical film stripping liquid is avoided, and the residual glue on the surface of the base plate is eliminated.

The utility model relates to the technical field of synthetic leather processing, and discloses superfine fiber polyurethane synthetic leather kneading and softening equipment which comprises an equipment bottom plate, a feeding seat is fixedly connected to the upper surface of the equipment bottom plate, and a feeding roller, an operation box, a driving motor and a front eccentric seat are rotationally connected into the feeding seat. The synthetic leather softening device is reasonable in structure, steam is discharged into the pipeline in the cover plate through the fan, the steam is sprayed to the surface of synthetic leather through the spray head, the synthetic leather is torn or deformed when softening operation is conducted on the synthetic leather due to the fact that the surface toughness of the synthetic leather is reduced due to the too low temperature of the synthetic leather, and the lifting roller rotates continuously through the lifting motor; and burrs, scraps, dust and the like generated after the surface of the synthetic leather is polished are sucked into the adsorption box from an opening in the lower portion of the adsorption box, the problem that subsequent processing and production are prone to being affected by burrs, dust and the like left on the surface of the synthetic leather is solved, the fixed roller is made to rotate continuously through the fixed motor, the synthetic leather can be extruded, and warped edges generated by the synthetic leather can be flattened.

The present application discloses a gamma voltage adjustment method, a gamma voltage adjustment circuit and a display device. The gamma voltage adjustment method is used for displaying a picture after entering a variable refresh rate mode, and includes the following steps: when displaying the current frame, pre-storing the original driving data of the next frame, and calculating the refresh rate of the next frame; obtaining the target refresh rate in the variable refresh rate mode; obtaining the gamma compensation voltage corresponding to the next frame refresh rate; calculating the gamma driving voltage of the next frame according to the gamma compensation voltage and the gamma reference voltage of the next frame, and writing the compensated gamma driving voltage in the vertical blanking period of the current frame to drive the display of the next frame of the display panel. Under the same gray scale, the gamma driving voltage compensated by the gamma compensation voltage makes the brightness of the next frame refresh rate consistent with the brightness of the target refresh rate, thereby improving the problem of large brightness difference or flickering when the display panel displays at different refresh rates.

The utility model relates to an axial fan for a high-speed motor, which comprises an iron hub positioned in the center, an aluminum hub is mounted on the outer circumferential surface of the iron hub in a matched manner, a balance block mounting groove is formed between the inner circumferential surface of the aluminum hub and the iron hub, and a plurality of aluminum fan blades are uniformly distributed on the outer circumferential surface of the aluminum hub at intervals. And the outermost parts of the plurality of aluminum fan blades are simultaneously provided with aluminum air ducts. The iron hub and the aluminum hub which are specially designed are combined and formed through casting, the characteristic that the melting point of iron is higher than that of aluminum is utilized, the cast aluminum part of the structure has the advantages of being easy to form and light in weight, meanwhile, the iron hub is made of iron and has the advantages of being high in strength, the problem of fan blade tearing can be effectively solved, and the service life of the fan blade is prolonged. And the overall reliability and the service life of the axial fan are greatly improved.

Film pasting equipment comprises a conveying line and a film pasting device, the conveying line comprises a first transmission assembly and is suitable for conveying a piece to be pasted with a film, the film pasting device is arranged on the conveying line and comprises a second transmission assembly, and the second transmission assembly is in transmission connection with the first transmission assembly. The first transmission assembly and the second transmission assembly are suitable for synchronously rotating and have the same rotating speed, the film pasting device is suitable for pasting a film on the surface of the to-be-pasted film piece, and the first transmission assembly and the second transmission assembly are arranged to synchronously rotate and have the same rotating speed, so that the moving speed and the film pasting speed of the to-be-pasted film piece are the same; and the part to be subjected to film pasting cannot be torn or bent.

The invention relates to the field of three-dimensional printing equipment, in particular to DLP three-dimensional printing equipment for customized product production. The 3D printer comprises a printing box, a lifting moving table, a DLP projector, a scraper assembly and a forming platform structure. A printing pool for containing liquid photosensitive resin is arranged at the upper end of the printing box; the lifting moving table is arranged on the mounting frame; the DLP projector is arranged on the lifting mobile station; the scraper assembly is located on the lifting moving table. The forming platform structure is arranged in the printing pool. The bending forming table is arranged, and the elastic body is prevented from being damaged in the stripping process through a flexible stripping mechanism for guiding the edge of a product to be curled. And meanwhile, the dynamic liquid supplementing system driven by the piston plate and the leveling and scraping system achieve the synergistic effect, an inherent stable environment is provided for high-precision printing, and the overall efficiency is improved in combination with modular operation.

The invention belongs to the technical field of steel strip trimming, and particularly relates to a cold-rolled steel strip trimming device which comprises a trimming device body, a collecting cavity is formed in the upper end of the trimming device body, a collecting frame is slidably connected to the bottom of an inner cavity of the collecting cavity, and a steel strip width adjusting assembly is arranged in the inner cavity of the collecting cavity. The steel belt width adjusting assembly comprises a fixing frame fixedly connected to the inner wall of the collecting cavity, a two-way threaded rod is rotationally connected to an inner cavity of the fixing frame, one end of the two-way threaded rod penetrates through the edge cutting device body and is fixedly connected with a crank, and the outer portion of the two-way threaded rod is in threaded connection with two T-shaped sliding blocks. The problems that a cutter is fixed, redundant corners of a steel belt make contact with the cutter to achieve edge cutting in the process that the steel belt is pulled by rolling equipment to move, if the cutter cannot cut all the redundant corners of the steel belt at a time, the cutter pulls the redundant corners to tear the whole steel belt, and the edge cutting efficiency is high are solved. And the problem that the steel belt is torn is solved.

The invention relates to the technical field of target tracking of computer vision, and provides an ORB feature matching tracking method based on an FPGA, and the method comprises the steps: detecting FAST feature points, carrying out FAST corner detection, response value calculation and maximum suppression on a 7 * 7 sliding pixel matrix, and outputting effective signals of the FAST feature points; feature point descriptors are generated, BRIEF descriptors are calculated on a 31 * 31 sliding pixel matrix, and combined output of the BRIEF descriptors and pixel coordinates is enabled through FAST feature point effective signals; and feature point matching and updating: storing feature point data of the target, the current state and the secondary state, traversing and matching the target feature points and the current state feature points, and updating the target feature point data. According to the target tracking method based on ORB feature point matching, the target tracking method based on ORB feature point matching is applied to an FPGA platform through software and hardware collaborative design, the resource limitation of an embedded platform and the requirement for processing mass image data in real time are considered, the target template is updated in real time, outdated features are removed, new features are introduced, the effectiveness of the template is ensured, and the reliability of matching tracking is improved.

The utility model relates to the technical field of electrolytic copper foil, in particular to a cathode roller surface treatment device capable of reducing edge tearing, which comprises a base, fixing boxes are respectively arranged on the left side and the right side of the top end of the base, lifting assemblies are arranged in inner cavities of the two fixing boxes, a machine shell is arranged between the two lifting assemblies, and a plurality of grooves are formed in the machine shell. An adjusting assembly is arranged in an inner cavity of the machine shell, the left side and the right side of the rear end of the adjusting assembly extend to the left side and the right side of the rear end of the machine shell correspondingly and are fixedly connected with spray heads correspondingly, and the two spray heads are both connected with a storage tank containing weak hydrochloric acid. According to the cathode roller surface treatment device capable of reducing edge tearing, through the arrangement of the spray heads, a weak hydrochloric acid solution can be sprayed on the left side and the right side of the cathode roller, oxidation of the left side and the right side of the cathode roller is accelerated, the binding force between edge deposition copper foil and the cathode roller surface is reduced, the edge tearing probability during lithium battery copper foil stripping is reduced, and the yield is increased; the problem that when the foil is stripped from the surface of the cathode roller, the binding force between the copper foil and the edge of the cathode roller is too large and is torn is solved.