6results about How to "Precise Width Control" patented technology

The invention discloses stainless steel wire straightening, calendering and automatic winding equipment which comprises a rack and further comprises a steel wire coil pay-off mechanism, a first tension guide wheel mechanism, a stress straightening mechanism, a calendering mechanism, a second tension guide wheel mechanism, a wire arranging wheel mechanism and a flat wire winding mechanism which are arranged on the rack. The steel wire coil pay-off mechanism is used for outputting a whole coil of stainless steel wires; the tension guide wheel mechanism I is used for adjusting tension and guiding the steel wire to be conveyed to the stress straightening mechanism; the stress straightening mechanism is used for circumferentially twisting the conveyed steel wire so as to release the multi-dimensional stress of the steel wire; the calendaring mechanism is used for calendaring the steel wire subjected to stress straightening into a flat shape; the second tension guide wheel mechanism is used for adjusting tension and guiding the rolled flat steel wire to be conveyed to the wire arranging wheel mechanism. The wire arranging wheel mechanism is used for guiding the steel wire to be wound neatly and tightly in the winding process. And the flat wire winding mechanism is used for winding the calendered flat steel wire.

The invention discloses a preparation method and application of a one-step molded wiredrawing film, and relates to the technical field of film production. According to the preparation method of the one-time formed wiredrawing film, the embossing roller with the Shore A hardness of 60-80 degrees and the surface pattern width of 0.05-0.10 mm is selected for calendaring, meanwhile, various parameters when the embossing roller and the cooling roller are matched with each other during casting are adjusted, the wiredrawing film is successfully prepared through one-time forming, and the excellent embossing effect is achieved.

The utility model belongs to secondary battery technical field discloses a kind of sodium metal negative electrode film coating devices, it includes support component, first adjusting component and second adjusting component.First sliding plate is set to support component, first adjusting plate is slidably connected in first direction adjustablely in first sliding plate, two first adjusting plates and first sliding plate form adjustable length coating port between, second sliding plate is slidably connected in second direction adjustablely in support component, second adjusting plate is slidably connected in first direction adjustablely in second sliding plate, and it is detachably connected in first adjusting plate by connecting plate, first sliding plate, first adjusting plate, second sliding plate, second adjusting plate and connecting plate are enclosed to form volume adjustable material chamber, material chamber is communicated with outside by coating port.Through above-mentioned setting, the sodium metal negative electrode film coating device of the application can flexibly adjust coating port size and the volume of material chamber, satisfies the coating demand of diversification.

This invention discloses a refueling pipe assembly with a throttling structure in the field of automotive fuel supply system technology. The assembly includes a refueling pipe and a circulation pipe. The circulation pipe has a throttling structure, which is a locally extruded deformation portion formed on the side wall of the circulation pipe. This deformation portion protrudes inward, forming a throttling orifice with a concave lens-shaped cross-section on the inner side of the pipe wall. An arc-shaped buffer section is provided between the throttling orifice and the outlet end of the circulation pipe. This invention can reduce refueling noise, simplify the throttling orifice process, and improve the reliability of the ORVR system.

The utility model relates to a ditcher cutter head applied to double-output shaft indexing box, including tool rest disc and blade, the tool rest disc is installed on the drive shaft, be arranged with the connection extension body on the tool rest disc, the connection extension body is away from the disc surface direction of the tool rest disc and extends, one end of the blade is fixed in the extension end of the connection extension body, when starting the double cutter head ditcher, the double cutter head rotates, makes the blade far away from the box of indexing box close, further makes the ditching width of double cutter head as narrow as possible, makes the soil far away from the frame below between two groups of cutter heads and be thrown out, avoids the soil gathering in the frame below between two groups of cutter heads, makes the double cutter head ditcher ditching operation smaller resistance, is fit for the use scene of small horse power double cutter head ditching.

The invention relates to the technical field of machining, in particular to a method and device for machining grooves in the end face and the edges of a hard and brittle material structural body, according to the method, a rotary cutter is used for grinding and machining the grooves in the end face and the edges of the hard and brittle material structural body, and the thickness of the rotary cutter is the width T of the grooves. The characteristic that hard and brittle materials are difficult to machine is solved, the hard and brittle materials can be effectively ground away through the rotary cutter, large mechanical stress cannot be generated, the rotary cutter is suitable for treating high-hardness and brittle materials, and grooves can be directly machined in the end face and the edges of a structural body; grooves with different depths are obtained through accurate control according to different feeding depths and machining paths of the rotary cutter, the universality is high, the process adaptability is higher due to the flexibility, and the device is suitable for products of various specifications; the size of the rotary cutter determines the size of the final groove, so that the width and the depth of the groove can be accurately controlled, an additional finishing step or secondary machining is not needed, the technological process is reduced, and the production efficiency is improved; and automatic processing is easy to realize.