6results about How to "Spin easily" patented technology

The utility model discloses a transmission device for a labeling machine, which comprises a labeling machine body, the top of the labeling machine body is fixedly provided with a transmission belt, and the top of the transmission belt is fixedly provided with a support. The twisting disc is firstly rotated, the twisting disc drives the round rod to rotate, the round rod drives the winding wheel to rotate, the winding wheel rotates to drive the steel rope to wind, the steel rope is wound to drive the transverse plate to move upwards, the transverse plate drives the limiting block to move, the pressing roller can move upwards, and then an object is placed at the bottom of the pressing roller. Then a hollow screw sleeve is rotated, meanwhile, a hollow screw rod is controlled by a single hand to avoid rotation, the hollow screw sleeve drives the hollow screw rod to move downwards, the pressing force of a pressing roller can be adjusted through a pressing ring, the label can be conveniently fixed, an existing mode that the label is not fixed and pressed is replaced, and therefore the label can be fixed and pressed; and the tightness between the label and the article is ensured.

This invention discloses a silicon carbide fiber precursor polycarbosilane and its preparation method, belonging to the field of polycarbosilane preparation technology. The preparation method of the silicon carbide fiber precursor polycarbosilane includes the following steps: Step 1: Preparing a Grignard reagent; Step 2: Adding an organic alkane to tetrahydrofuran, stirring and mixing, then slowly adding it to the Grignard reagent, stirring and reacting; after the reaction is complete, heating to room temperature, adding a composite organic auxiliary agent, stirring and reacting; after the reaction is complete, quenching the reaction, separating the liquids, washing, and drying to obtain a prepolymer; Step 3: After vacuum distillation of the prepolymer, transferring it to a reaction vessel, heating and polymerizing it under argon atmosphere; after the reaction is complete, adding it to toluene, dissolving, filtering, precipitating, and drying to obtain the silicon carbide fiber precursor polycarbosilane. The polycarbosilane prepared by the above method has excellent thermal stability and high-temperature mechanical properties.

This invention discloses an electric-assisted rotation method, apparatus, computer device, and readable storage medium, comprising: continuously acquiring the torque direction and torque value of a central control screen; if the torque value is determined to meet a preset torque condition, generating target rotation information in at least one degree of freedom based on the torque direction and the torque value; rotating the central control screen according to the target rotation information; and stopping the rotation of the central control screen if the torque value is determined not to exceed a torque threshold. This invention detects the force applied by the user during manual rotation using a torque sensor, and the motor intelligently provides a corresponding angular velocity based on the torque, enabling the central control screen to rotate easily and quickly to the target angle. Simultaneously, the user can rotate the central control screen to their ideal and comfortable angle based on their feel.

The application provides an imidazole ring-containing polyimide / ZIF-8 composite nanofiber membrane and a preparation method and application thereof, and the preparation method comprises the following steps: preparing an imidazole ring-containing polyamide acid spinning solution; preparing an imidazole ring-containing polyamide acid nanofiber membrane by using the imidazole ring-containing polyamide acid spinning solution through an electrostatic spinning method; performing thermal imidization treatment on the imidazole ring-containing polyamide acid nanofiber membrane to obtain an imidazole ring-containing polyimide nanofiber membrane; and repeatedly immersing the imidazole ring-containing polyimide nanofiber membrane in a ZIF-8 solution for several times, and then drying to obtain the imidazole ring-containing polyimide / ZIF-8 composite nanofiber membrane. The imidazole ring-containing polyimide / ZIF-8 composite nanofiber membrane anchors ZIF-8 on the polyimide fiber through cation-π interaction, and effectively improves the binding force between the polyimide and ZIF-8.

This utility model discloses a lifting device, including a base and a top support mechanism. The top support mechanism is disposed on the base and includes a first support plate that can be raised and lowered relative to the base and a second support plate disposed on the first support plate that can rotate relative to the first support plate. The base includes a support and a platform. The support is composed of several branch pipes, which are detachably connected by connecting buckles. The platform is detachably disposed on the upper end of the support for mounting the top support mechanism. This utility model uses lean pipes to replace traditional aluminum and square steel to reduce material costs. The base branch pipes are detachable by connecting buckles with protrusions and screw holes. The platform and support are also detachable, reducing transportation and disassembly costs, eliminating welding during installation, and requiring only the replacement of a single component for maintenance. The composite structure of the support enhances the strength of the lean pipes. The height of the top support cylinder is adjusted, and the second support plate rotates via a protruding column, equipped with track rollers and a protruding edge. The support legs are adjustable to adapt to the site, meeting the requirements of cost, stability, and flexibility.

The utility model discloses a spin-coating suction cup of an optical product, which comprises a sleeve, the sleeve is provided with a clamping groove, one side of the clamping groove is connected with a rotary supporting column of a spin-coating machine, the other side of the sleeve is connected with a suction cup base, a tooth-shaped groove is arranged in the suction cup base, a sliding rail is arranged in the tooth-shaped groove, a square sliding block is arranged on the sliding rail, and the square sliding block is connected with the clamping groove. A cylindrical supporting column is arranged on one side of the square sliding block and embedded in the edge of the square sliding block, a T-shaped ejector rod is further arranged on the cylindrical supporting column, a spherical round head is arranged on the top of the T-shaped ejector rod and embedded in the middle of the cylindrical supporting column, and an optical product is placed in the center of the suction cup base. An optical product is clamped by the four cylindrical supporting columns, so that the rectangular sheets with different sizes are spin-coated, are convenient to take and place, are convenient to fix and spin-coat and have other related purposes, are convenient for personnel to spin-coat the products, have effective appearance protection of flying sheets, knocking and breaking and the like on the products, realize spin-coating of the rectangular sheets with different sizes, and reduce the investment of equipment.