6results about How to "Prevent shape deformation" patented technology

The invention discloses an elastic double-filament core-spun yarn fabric and a production method thereof, and belongs to the technical field of textiles. According to the elastic double-filament core-spun yarn fabric, pure cotton siro-spun yarns are selected as warps A, slub yarns are selected as warps B, and elastic double core-spun yarns are selected as wefts. In addition, the invention further provides a production method of the elastic double-filament core-spun yarn fabric, and the elastic double-filament core-spun yarn fabric is obtained through a warping process, a slashing process, a denting process and a weaving process in sequence. In the sizing process, warp beams of two kinds of warp yarns, namely warp yarns A C36.4 tex and warp yarns B C41.6 tex bamboo, are simultaneously adjusted on a beam creel, and the warp yarns A separated from one beam for common warping are combined with the warp yarns A on other beams. The tensile strength of the double-core-spun fabric is remarkably improved, meanwhile, the double-core-spun fabric has the characteristic of rapid moisture absorption, and the common problems of elasticity weakening and shape deformation of traditional cotton core-spun elastic fabric are effectively solved.

The present invention relates to a power conversion device. The power conversion device includes: a bus bar through which current flows, a current sensor having a magnetic core surrounding the bus bar, and a power module case having a receiving recess for receiving the magnetic core, and the power conversion device includes an embedded fixture that embeds a part of the receiving recess and fixes the magnetic core to the power module case in a state where a part of the magnetic core is exposed.

This invention discloses a rapid prototyping system for porcelain insulators, relating to the field of porcelain insulator technology. It includes a workbench with a lifting assembly fixedly connected above it via a mounting bracket. An upper mold is fixed to the movable part at the bottom of the lifting assembly. A lower mold is fixed directly below the upper mold on the workbench. Vertical guide rods are provided at the four corners of the lower mold, with guide cones at the top (narrower at the top, wider at the bottom) and the same size as the guide rods at the bottom. Vertical through-type limiting tubes are provided at the four corners of the upper mold, with the inner wall of the limiting tubes slidingly fitting against the outer wall of the guide rods. Both the upper and lower molds are equipped with temperature control mechanisms, including heating grids and temperature sensors. The temperature sensors detect the temperature of the heating grids, and the power of the heating grids is controlled by a first control unit according to a preset temperature. The two first control units communicate in real time via a wireless communication unit to ensure that the heating grid temperatures are the same. The upper and lower molds and their heating grids are the same size. This invention allows for rapid preliminary shaping, accurate positioning, and uniform heating.

This invention provides an injection mold for forming external threads, including an upper fixed mold assembly, a lower moving mold assembly, a screw forming assembly, and a drive assembly. The upper fixed mold assembly has a rectangular head forming groove; the screw forming assembly includes an integrally formed forming shaft, which has a screw forming part, a rotating gear part, and a moving thread part; the drive assembly drives a spur rack through a single drive cylinder, which in turn drives the rotating gear part to rotate, causing the forming shaft to move axially while rotating, thus achieving thread demolding. This mold adopts a single-drive structure, avoiding the synchronization problem of dual drives, reducing debugging difficulty and cost, improving thread forming accuracy and demolding reliability, and is suitable for the mass production of high-precision plastic screws.

The utility model belongs to the technical field of food processing equipment, and discloses a fabric shaping device for making fried sea sedge rolls, which comprises a working table, a shaping mechanism is mounted on the upper surface of the working table, an oil control mechanism and a frying pan are mounted in the working table, the shaping mechanism comprises two fixing frames, a guide component is arranged between the two fixing frames, and the oil control mechanism is connected with the oil control mechanism. One end of the guide assembly is connected with a first motor, a mounting plate is further arranged on the guide assembly, an electric push rod is mounted on the mounting plate, and the end of a telescopic rod of the electric push rod is connected with a clamping assembly; the device is simple in structure, nori rolls are clamped through the clamping assemblies of the shaping mechanism, shape deformation caused by loosening or rolling of the nori rolls in the moving and frying process can be avoided, it is guaranteed that the appearance of finished products is neat and consistent, it is guaranteed that the nori rolls are evenly heated in the frying process, and use is convenient.

The invention discloses a pit pressing tool matched with a pit type connector and a pit making device. The pit pressing tool comprises a pit pressing body, a driving mechanism, a plurality of piston assemblies and an extrusion part. The pit pressing body is detachably connected to the outer side of the continuous pipe. A plurality of piston assemblies are uniformly arranged in the circumferential direction of the pit pressing body; the piston assembly comprises a piston cylinder and a piston body; the first end of the piston cylinder is connected to the outer side of the pit pressing body, and an opening is formed in the first end of the piston cylinder; a piston body is slidably arranged in an inner cavity of the piston cylinder; the first end of the piston body is connected with the extrusion part, the first end of the piston body and the extrusion part extend out of the opening, and the extrusion part can abut against the coiled tubing; the piston body is connected with the driving mechanism and slides towards the continuous pipe under the action of the driving mechanism, so that the extrusion part extrudes the outer surface of the continuous pipe and is matched with the pit type connector to form a pit. And the quality and precision of continuous pipe pit pressing are effectively improved, and the working efficiency is improved.