7results about How to "Precise design" patented technology

The invention relates to the technical field of wire and cable processing equipment, in particular to a wire and cable copper wire drawing machine which comprises a machine table and the like, a pay-off device, a fixing plate and a pull rod are sequentially and fixedly mounted on the machine table from left to right, a wire drawing box is slidably connected to the position, close to the pull rod, of the machine table, and a fixed wire drawing module is fixedly connected to a side plate of the wire drawing box; the top end of the wire drawing box is fixedly connected with a lubricating liquid box, a hand pressure valve is installed between the wire drawing box and the lubricating liquid box, the hand pressure valve is connected with the fixed wire drawing module through a liquid pipe, and the hand pressure valve makes contact with the pull rod. Through the cooperative design of the hand pressure valve and the pull rod, automatic conveying control over lubricating liquid is achieved, in the wire drawing process, along with movement of the wire drawing box, the hand pressure valve is automatically opened, the lubricating liquid is accurately conveyed to the position where the wire drawing module is fixed, timely and effective lubrication is provided for a copper wire, and friction and abrasion between the copper wire and the wire drawing module are reduced.

This utility model discloses a lockable sliding switch, comprising: an upper shell and a lower shell, the upper shell and the lower shell being connected to form a closed outer shell structure; a rotary lock seat, rotatably disposed within the upper shell and the lower shell; and a fixed lock seat, fixedly disposed within the upper shell and the lower shell, forming a relative rotational relationship with the rotary lock seat; the rotary lock seat is provided with a first locking plate, and the fixed lock seat is provided with a second locking plate; when the rotary lock seat is rotated to the locked position, the first locking plate and the second locking plate abut face to face, blocking the rotation of the rotary lock seat; the rotary lock seat is provided with a lock hole, and when the rotary lock seat is in the locked position, an external lock can be inserted into the lock hole and locked. This lockable sliding switch has the characteristics of double locking to prevent misoperation, stable gear switching, and reliable contact.

The invention relates to a matting material and a preparation method thereof. The preparation method comprises the following steps: (1) directional arrangement: bonding a fiber bundle and an uncured adhesive film according to an orientation angle theta to obtain a unit layer; (2) fixed-height cutting: carrying out fixed-height cutting on the unit layers in the step (1) by adopting cutting equipment to obtain'fiber bundle-adhesive film 'structural units; (3) laminating and laying: laying a plurality of layers of'fiber bundle-adhesive film 'structural units in the step (2) together to obtain a laminated structure; and (4) curing and forming: curing the laminated structure in the step (3) to obtain the extinction material. The orientation angle of the extinction fiber array can be precisely designed and controlled, and therefore efficient absorption of incident light at a specific angle is achieved.

The utility model relates to the field of SF6 gas micro-water density, and discloses auxiliary calibration equipment for an SF6 gas micro-water density sensor, which comprises a sensor, the sensor is placed in a box body, the inner bottom surface of the box body is fixedly connected with a mounting seat, the sensor is clamped in the mounting seat, an additional box is fixedly connected to one side, corresponding to a gas inlet pipe of the sensor, outside the box body, and the additional box is connected with the sensor. A multi-parameter gas calibration structure is arranged in the additional box, a sealing connection structure is arranged between a gas inlet pipe of the sensor and the multi-parameter gas calibration structure, a data collecting and processing system is installed on one side in the box body, and the top end of the sensor is connected with the data collecting and processing system in a wiring mode. A temperature control system is installed on the side, opposite to the data collecting and processing system, in the box body, multi-parameter gas calibration structures such as the humidity generator, the standard gas tank and the pressure calibration instrument are integrated in the additional box, the gas input pipeline layout, the precise pipeline design and the sealing connection structure are optimized, and gas leakage is effectively avoided.

The rotor blade tip profiling design method comprises the following steps that a scraping and grinding coating is arranged on the side, facing a rotor blade, of a casing, a plurality of bosses are arranged at the blade tip of the rotor blade in the chord length direction, and all the bosses are scraped and ground with the casing in the initial state; the engine is operated, so that rotor blades are in a working state and are scraped and abraded with the casing; after the working state is finished, scraping and grinding data of the scraping and grinding coating in the chord length direction of the blade are obtained; and reversely designing the radial size of the rotor blade tip according to the scraping and grinding data. According to the method, on the basis of the relation between the blade tip shape and the blade tip gap, flexible, accurate and multi-point design and control can be reversely carried out on the gap in the chord length direction of the blade through the scraping and grinding data of the scraping and grinding coating. The invention further provides a rotor blade and a gas compressor.

This invention relates to the field of slitting machine technology, and in particular discloses an intelligent slitting and tape-sealing device for roll materials. The device includes a slitting machine, a slitting assembly mounted on the slitting machine for slitting externally unrolled roll materials, and a first frame for carrying the external roll materials. It also includes a cutting mechanism for cutting the unrolled roll materials, a rolling mechanism, and a tape-sealing mechanism used in conjunction with the cutting mechanism. By integrating the slitting, cutting, rolling, and tape-sealing mechanisms, the device achieves automatic slitting, cutting, winding, and tape-sealing of the unrolled roll materials, greatly improving production efficiency and automation. The slitting and cutting mechanisms used in conjunction enable precise slitting and cutting of the unrolled roll materials, ensuring accurate dimensions of the processed small roll materials. The tape-sealing mechanism compresses and cuts the tape, ensuring that the tape adheres to the roll material and seals it, providing a high-quality sealing effect and improving roll material production efficiency.

The application discloses a kind of high-dispersion cobalt-based catalyst and its preparation method and application, belong to cobalt-based catalyst technical field, the present application with four carboxyl phthalocyanine cobalt and nitrogen defect carbon nanotube as raw material, through molecular self-assembly in organic solvent and form pre-assembly complex, then the pre-assembly complex is programmed microwave heating, obtain the high-dispersion cobalt-based catalyst, the present application utilizes the means that specificity molecular precursor and carrier defect engineering are combined, by liquid phase pre-assembly constructs "molecular anchor-anchor position" pre-connection system, again with the principle of programmed microwave energy precise input, successfully solve the key technical problems that existing microwave method preparation cobalt-based catalyst when metal atom is easy to gather, active site structure is uncontrollable and catalytic performance is mediocre etc..