8results about How to "Reduce loose" patented technology

The present application belongs to the field of wool fabric finishing, and provides a wool top raw fabric and a preparation method thereof. The present application forms wool fibers with controlled scale reduction and a keratin grafting layer by low-damage scale cutting of a hydrogen peroxide aqueous solution and sodium bicarbonate, removal of residual peroxide, and hydrolysis of keratin under the participation of carbodiimide hydrochloride and N-hydroxysuccinimide, and then the wool fibers are subjected to top preparation, spinning and weaving to obtain the fabric. The fabric can improve anti-felting, anti-pilling, dimensional stability and processing stability while maintaining the strength and air permeability of the wool fibers, solves the problem that it is difficult to balance the strength retention and anti-felting, and the processing stability and anti-pilling, and is suitable for the preparation and finishing of wool top raw fabric.

The utility model discloses a yarn winding forming device relates to yarn winding technical field, including bottom plate, support block, first fixed plate, first motor and winding roller, the right side of bottom plate top is provided with second fixed plate, the top of winding roller is provided with the apron, the right side fixed connection of apron has the connecting block, the top of second fixed plate left side has established first sliding slot, the right side fixed connection of connecting block has the first sliding block. The utility model discloses through setting up second fixed plate, apron, connecting block, first sliding slot and first sliding block, make connecting block with second fixed plate left side top first sliding slot in first sliding block link to each other, make apron can slide up and down along first sliding slot, carry out pressure to the yarn of different thickness, solved in the current yarn winding forming process, when completing winding, cut off the operation to yarn end, will make the yarn in the package body lose inherent tension, and then cause the problem of loose yarn structure.

The application discloses a kind of anti-chlorine salt erosion rubber modified asphalt pavement pit slot repair composite process, in view of the interface peeling caused by chlorine salt erosion in traditional repair process, short repair life problem, innovatively proposes the three-stage repair system of "debridement-interface activation-bionic filling": (1) rough interface is formed by using high-pressure cyclone debridement device to remove loose debris;(2) spray anti-chloride bonding layer containing nano-silane coupling agent, the depth of penetration reaches 3-5mm, forms chemical barrier;(3) layered filling rubber modified asphalt mixture, the gradient compaction is implemented in 30-50Hz of adjustable frequency vibrating road roller.The application improves the interface strength by molecular bonding and mechanical interlocking dual action, realizes the dual anchoring of chemical bonding and mechanical engagement effect of repair layer and original pavement, improves the interface bonding strength, prolongs the service life of repair layer, effectively solves the technical problem that pit slot repair layer is easy to debond and fails in chlorine salt environment, and is suitable for the rapid repair of pavement diseases in coastal areas and road sections where deicing agent is used a lot in winter.

This disclosure provides a dust collection device, cleaning equipment, and control method, belonging to the field of cleaning equipment. The dust collection device includes a dust cup, a cleaning assembly, and a drive assembly. The cleaning assembly can move between an initial position away from the bottom of the dust cup and a cleaning position near the bottom of the dust cup. Before or when the dust cup enters the cleaning state, the drive assembly drives the cleaning assembly to the cleaning position and holds it there. After the dust cup returns to the dust collection state, the drive assembly drives the cleaning assembly back to the initial position. The dust collection device, cleaning equipment, and control method provided by this disclosure can reduce the disturbance of the bottom dust caused by the reverse movement of the cleaning assembly, reducing the possibility of dust re-loosening, being stirred up, or escaping from the dust discharge area.

This application relates to a strip steel scrap collection device, including a frame and a winding device mounted on the frame. The winding device includes winding rollers, a drive assembly, and a scrap hopper. Two winding rollers are rotatably mounted on the frame, distributed along the width direction of the strip steel. The length direction of the two winding rollers is consistent with the width direction of the strip steel. The drive assembly is mounted on the frame and drives the two winding rollers to rotate on the frame. The scrap hopper is mounted on the frame and located below the two winding rollers, holding the wound strip steel scrap. This application uses the drive assembly to drive the winding rollers to wind up the strip steel scrap and collect the wound scrap in the scrap hopper, thereby reducing the amount of scrap accumulating on both sides of the conveyor belt and occupying a large space, and also reducing the possibility of workers being scratched during cleaning after winding.

The application relates to a heating device for a coaxial line high-frequency winding machine and relates to the technical field of coaxial line heating, which comprises an oven, two end walls of the oven are provided with wire passing holes for the coaxial line to pass through the inside of the oven, the axes of the two wire passing holes coincide, a plurality of heating pipes are arranged in the oven, the heating pipes are parallel to the axes of the wire passing holes, all the heating pipes are uniformly and intervally distributed in the circumferential direction of the axes of the wire passing holes, and an air circulation mechanism is further arranged on the oven and used for making the air in the oven flow. The application has the effects of improving the heating uniformity of the outer wrapping tape of the coaxial line and improving the production quality of the coaxial line.

This utility model discloses a steel coil unwinding and rewinding device for exterior wall insulation boards in factories, belonging to the technical field of unwinding and rewinding devices. It includes an unwinding motor and an expansion shaft. The expansion shaft is mounted on the output shaft of the unwinding motor. A transfer assembly for conveying the steel coil is installed at the bottom of the expansion shaft. Correction plates are installed on both sides of the expansion shaft. A support tail seat for rotating and supporting the expansion shaft is installed on the side of the expansion shaft away from the unwinding motor. An anti-loosening component is installed on the transfer assembly. During unwinding, the contact area between the correction strips and the steel coil is small, ensuring smooth unwinding while maintaining the correction effect. The pressure roller, pushed by the elastic element, always abuts against the outer ring of the steel coil, reducing loosening caused by tension. Due to the large weight of the steel coil, the support shaft seat supports the expansion shaft to ensure a stable center of gravity. This results in the production of high-quality steel plates for insulation boards.

This application discloses a stacking feed roller conveyor for cutting profile steel, comprising a drawing machine, a blanking frame, a feeding frame, a limiting assembly, and a cutting device. The feeding frame and the drawing machine are respectively disposed on both sides of the blanking frame in the width direction. The length direction of the drawing machine is parallel to the length direction of the blanking frame. The cutting device is disposed at one end of the feeding frame in the length direction. A guide bar is disposed on the drawing machine along its width direction. A support platform is disposed below the blanking frame. The side of the blanking frame away from the drawing machine is rotatably connected to the support platform. The higher side of the blanking frame is disposed corresponding to the drawing machine. A plurality of feeding rollers are horizontally rotatably disposed on the feeding frame in its width direction. The limiting assembly includes a first limiting vertical plate, which is vertically disposed along the length direction of the feeding frame and disposed above the feeding frame. This application has the effect of improving the cutting efficiency of metal profiles and realizing multi-layer stacking of metal profiles in the feeding structure.