30results about How to "Uniform and stable tension" patented technology

The invention discloses a heat-resistant seamless lapped aviation cable and a preparation method thereof. The heat-resistant seamless lapped aviation cable comprises a conductive core wire formed by twisting a plurality of insulating core wires, and a sheathing layer wrapping the conductive core wire; each insulating core wire comprises a conductor core and an insulating layer wrapping the conductor core; each insulating layer sequentially comprises a polytetrafluoroethylene modified turning belt, a polyimide film and a polytetrafluoroethylene sealing tape in sequence from the inside out. According to the invention, a seamless lapping and sintering technology is utilized and three-layer combination insulation is adopted, so that the heat-resistant seamless lapped aviation cable can be obtained, and favorable electrical performance and mechanical strength of the cable can be ensured. The heat-resistant seamless lapped aviation cable provided by the invention can resist the temperature ranging from minus 65 DEG C to 280 DEG C and can satisfy the requirement of being used under the high-temperature environment of 280 DEG C for a long time.

The invention discloses a partition comber board for jacquard weaving and a mounting method, and belongs to the technical field of jacquard weaving machinery. The partition comber board is characterized in that a partition comber board body (5) is divided into a comber board front region (501) and a comber board rear region (502) by a lateral center line; meshes in the partition comber board body (5) are numbered according to natural numbers from the left part to the right part in sequence; meshes numbered according to odd numbers are odd number meshes (3); meshes numbered according to even numbers are even number meshes (4); the odd number meshes (3) are formed in the comber board rear region (502); the even number meshes (4) are formed in the comber board front region (501); earth beam warp yarns (1) are drafted in the comber board rear region (502); warp beam warp yarns (2) are drafted in the comber board front region (501). The partition comber board can ensure that the earth beam warp yarns and the warp beam warp yarns are arranged according to a 1:1 sequence, and meanwhile can keep uniform and stable tension of the earth beam warp yarns and the warp beam warp yarns.

The invention discloses an orthopedic surgery aid in the technical field of medical auxiliary devices. The orthopedic surgery aid comprises a sliding rod, a slideway is arranged on the inner wall of the sliding rod, trench teeth are arranged at the bottom of the sliding rod, a supporting block is slidably arranged in the middle of the sliding rod, a sliding plate is arranged at the bottom of the supporting block and slidably connected with an adjusting rod, an annular connection block is fixedly connected at the end of the adjusting rod, an oval ring is fixedly connected in the middle of the annular connection block, four rubber blocks are uniformly connected on the outer wall of the connection block slidably, the top of each rubber block is slidably connected with a pulling hook handle, the side wall of each pulling hook handle is fixedly connected with a linear limiting plate, a pulling hook plate is fixedly connected at the end of each pulling hook handle, and a thread is connectedin the middle of each pulling hook plate in a threaded manner. The orthopedic surgery aid can quickly adjust and position pull hooks and is balanced and stable in tension, manpower-saving, free of blocking doctor's operation and sight and capable of cooperating with multiple groups of pull hooks to realize good effect.

The present application relates to a fabric and a device for producing the fabric, comprising a plurality of loop-shaped yarns distributed along the weft direction of the fabric, the loop-shaped yarns are interlocked with each other, a part of the yarns are made of real silk, and the yarns are made of real silk. The remainder of the thread is made of less expensive materials, with yarns made from silk and yarns made from less expensive materials staggered along the weft of the fabric. The present application has the advantages of blending silk and lower-priced materials into fabrics, so that the woven fabrics are less expensive than pure silk fabrics, and have a similar touch and appearance to silk fabrics, making the fabrics easier to sell , thereby increasing the proportion of fabrics in the market.

The invention discloses a scraper type dung cleaner for use in a hog house, which comprises a driving mechanism, a detecting device, a traction rope, a steering wheel, a dung scraping device and a control electric cabinet, wherein the dung scraping device comprises a traction regulating frame, a pull rod device, a dung scrapping plate and a side plate mechanism; the traction regulating frame is fixedly connected with the side plate mechanism and is in sliding connection with the pull rod device; the pull rode device comprises a traction ring, a pull rod, a limiting shaft, a deflector rod, anda pawl device; the traction ring and the pawl device are arranged at the two ends of the pull rod respectively and are connected with the traction rope; the deflector rod, and the limiting shaft are arranged on the pull rod; a sliding connector which connects the pull rod and the traction regulating frame is in contacted connection with the limiting shaft; the upper end of the dung scraping plateis in contacted connection with the deflector rod,; and a scraper rotating shaft arranged on the dung scraping plate is connected with a supporting stub on the side plate mechanism. The scraper type dung cleaner with a reasonable structure can realize mechanical dung cleaning, lower labor intensity and improve production efficiency.

The invention discloses an air-jet loom. The air-jet loom comprises a frame, a let-off mechanism, a shedding mechanism, a weft insertion mechanism, a beating-up mechanism, a winding mechanism, a warp loosening mechanism and a pneumatic tuck-in mechanism. The frame comprises wall plates, a supporting retainer and a middle support. By reasonable allocation of the wall plates, integrality of the air-jet loom can be improved beneficially; by reasonable allocation of the beating-up mechanism, balancing performance of the beating-up mechanism can be beneficially improved so as to increase beating-up speed of the beating-up mechanism; by reasonable allocation of the winding mechanism, an upper winding pressure roller and a lower winding pressure roller can be lift up at the same time; by reasonable allocation of the warp loosening mechanism, an eccentric adjusting block can slide along a horizontal side groove in an eccentric adjusting seat so as to change eccentricity, and warp loosening quantity can be adjusted according to different fabric requirements; by reasonable allocation of the pneumatic tuck-in mechanism, wefts can be smoothly guided into a stretch nozzle and accurately and stably fed into a cutter opening of the air-jet loom, and excellent tuck-in effects are achieved.

The invention relates to a resistance-free balanced-type ripple compensator. The resistance-free balanced-type ripple compensator comprises a work corrugated pipe assembly with the two ends connected with main pipes and a balanced corrugated pipe assembly perpendicularly connected with the main pipes. Connecting pull ropes are arranged between the work corrugated pipe assembly and the balanced corrugated pipe assembly, the two ends of the connecting pull ropes are connected with the work corrugated pipe assembly and the balanced corrugated pipe assembly respectively, and the connecting pull ropes are bent through a turning fixed pulley. The resistance-free balanced-type ripple compensator has the advantages that tension is transmitted between the work corrugated pipe assembly and the balanced corrugated pipe assembly through the connecting pull ropes, and swinging generated during pulling is eliminated; the multiple pull ropes equal in length are adopted and have same elastic deformation, the pull ropes and the turning fixed pulley are simple in structure and high in reliability, and tension is even and stable. External-pressure type ripper compensator bodies are adopted for the work corrugated pipe assembly and the balanced corrugated pipe assembly, and the instability of a ripple compensator during large expansion is avoided. The resistance-free balanced-type ripple compensator can be suitable for a pipe with large expansion.

THRE IS PROVIDED A PLATE FOR SCREEN PRINTING, COMPRISING: A SCREEN STRETCHED OVER A FRAME; AND AN IMAGE LAYER, FORMED OF A PHOTO-CURED RESIN, PROVIDED ON THE SURFACE OF THE SCREEN, THE SCREEN COMPRISING A METALLIC SCREEN HAVING CONCAVES WITH A DEPTH OF 0.05 TO 20µm.THERE IS ALSO PROVIDED A PROCESS FOR PRODUCING A PLATE FOR SCREEN PRINTING, COMPRISING THE STEPS OF:FORMING A PHOTO-SENSITIVE RESIN LAYER ON THE SURFACE OF A METALLIC SCREEN STRETCHED OVER A FRAME; EXPOSING THE PHOTO-SENSITIVE RESION LAYER THROUGH A MASK TO FORM A LATENT IMAGE; AND DEVELOPING THE EXPOSED RESIN LAYER TO FORM AN IMAGE LAYER,THE SURFACE OF THE METALLIC SCREEN HAVING BEEN ROUGHENED BY BLOWING GRAINS HAVING A SIZE OF 100 TO 2,000 MESH AGAINST THE SURFACE OF THE METALLIC SCREEN AND / OR BY BUFFING.

The invention discloses a partition comber board for jacquard weaving and a mounting method, and belongs to the technical field of jacquard weaving machinery. The partition comber board is characterized in that a partition comber board body (5) is divided into a comber board front region (501) and a comber board rear region (502) by a lateral center line; meshes in the partition comber board body (5) are numbered according to natural numbers from the left part to the right part in sequence; meshes numbered according to odd numbers are odd number meshes (3); meshes numbered according to even numbers are even number meshes (4); the odd number meshes (3) are formed in the comber board rear region (502); the even number meshes (4) are formed in the comber board front region (501); earth beam warp yarns (1) are drafted in the comber board rear region (502); warp beam warp yarns (2) are drafted in the comber board front region (501). The partition comber board can ensure that the earth beam warp yarns and the warp beam warp yarns are arranged according to a 1:1 sequence, and meanwhile can keep uniform and stable tension of the earth beam warp yarns and the warp beam warp yarns.

The invention relates to an automatic T-shaped framework small motor rotor winding device. A winding feeding mechanism and a winding driving mechanism are arranged on a working bed plate; the winding feeding mechanism has a secondary feeding structure and comprises a feeding motor and a flying fork head driven by the secondary feeding structure, and the feeding motor drives the flying fork head towards the right to realize primary feeding by a first compression spring and continuously drives the flying fork head towards the right to realize secondary feeding by a second compression spring; a winding end air cylinder is arranged on an outer frame of the working bed plate, a piston of the winding end air cylinder is connected to a tooling fixing plate, a winding end guide pin is arranged on the tooling fixing plate, and the winding end guide pin is adaptive to a metal reversing sheet of a small motor rotor. In the invention, the winding end guide pin is utilized to wrap the front end of the metal reversing sheet and is combined with the secondary feeding of the flying fork head to realize the full-automatic winding of a T-shaped framework of the small motor rotor, and artificial winding is not needed, so that the labor intensity of workers is reduced, the production efficiency is greatly improved, and the pulling force of a tensioner in the winding process is uniform and stable, therefore, the winding quality is stable and unified.

The invention discloses a lift-type high-speed doubling process, which is mainly completed by a lift-type high-speed doubling machine. The lift-type high-speed doubling machine includes a doubling machine body and a winding tube. The doubling machine body One side of the doubling machine body is fixedly connected with an electrical box, and the top of the inner cavity of the doubling machine body is fixedly connected with a forming part, and the forming part includes a stepping motor, a first fixing plate and a second fixing plate, and the stepping motor The output end is fixedly connected with the synchronous wheel of the stepper motor, and the first guide rail and the second guide rail are fixedly connected between one side of the first fixed plate and the second fixed plate. Under the cooperation of the first guide rail, the stepping motor drives the slider to move up and down, and the winding motion of the spindle DC motor forms the spiral winding motion of the yarn.

The present invention discloses a tension and anchor device for prestressed concrete poles, which comprises tension brace, tension rod, tension head and tension and anchor plate and uses steel mould and tension jack. In the direction of circular degree of the said tension brace, four uniform support legs are set and welded with stiffening plate and end plate, and screws are set inside the end plate. At the head of the said tension rod, a tension claw is set, and at the tail connection screws are set to match with the jack piston rod. At the said tension head, prestressed steel holes are drilled, in the head a slope plate is set, and on the other end, connection screws are set to match with the anchor plate. Screws are set in the said tension and anchor plate to match with the tension head. Such tension and anchor device has a simple structure and safe and reliable connection. Steel Mould