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40results about How to "Effective contraction" patented technology

High performance WPU superfine fiber synthetic leather and clean production method thereof

Provided are a high performance WPU superfine fiber synthetic leather and a clean production method thereof; superfine fiber synthetic leather base cloth is impregnated through an impregnating tank filled with a shrinkage and rubbing liquid and then enters a continuous graining machine, and the superfine fiber synthetic leather base cloth is dried to obtain shrinkage-rubbed base cloth; a synthetic leather dry-process production line provided with a PUR scraping device is adopted, a WPU coating is scraped on release paper and is dried, a WPU film is formed on the release paper, then the WPU film is coated with PUR, then the coated WPU film is fitted with the shrinkage-rubbed base cloth, and the obtained productt is cooled and coiled and is placed and cured; after the release paper is stripped, the high performance WPU superfine fiber synthetic leather is obtained. With adoption of the shrinkage rubbing technology, the softness, air permeability and water vapor permeability of the superfine fiber synthetic leather base cloth are greatly improved; then through the composite technology of coating layer transferring with release paper and PUR scrapping, the WPU coating layer is composited on the superfine fiber synthetic leather substrate, and the WPU superfine fiber synthetic leather with soft hand feeling and good mechanical properties and use performance is obtained.
Owner:JIANGSU KEMEI NEW MATERIALS

Suede simulation type superfine fiber synthetic leather and clean production method thereof

The invention relates to suede simulation type superfine fiber synthetic leather and a clean production method thereof. The method comprises the steps of impregnating superfine fiber synthetic leather base cloth through an impregnating tank full of shrinking and kneading liquid, entering a continuous graining machine, drying the superfine fiber synthetic leather base cloth, and obtaining shrinking and kneading base cloth; adopting a flocking production line provided with PUR lattice roller coating equipment, coating PUR on the shrinking and kneading base cloth, sprinkling collagen fiber, adhering on the shrinking and kneading base cloth, cooling and winding, and placing to obtain flocking base cloth; adopting a brushing machine for removing the collagen fiber which is not firmly adhered onto the flocking base cloth, and obtaining the suede simulation type superfine fiber synthetic leather. According to the suede simulation type superfine fiber synthetic leather and the clean production method thereof provided by the invention, a shrinking and kneading technology is adopted, so that the softness, the air permeability and the water vapor permeability of the superfine fiber synthetic leather base cloth are greatly improved; a PUR lattice roller coating composite technology is adopted, so that the collagen fiber is compounded onto the superfine fiber synthetic leather base cloth, and the suede simulation type superfine fiber synthetic leather with the appearance being similar to the appearance of natural suede leather, and the mechanical property and the hygiene property being superior to the mechanical property and the hygiene property of the natural suede leather is obtained.
Owner:JIANGSU KEMEI NEW MATERIALS

Self-energized bladder pacemaker

The invention provides a self-energized bladder pacemaker, which is characterized by comprising a pulse generator, an exciting electrode, and a power generation portion. The power generation portion comprises a power generation main body, an output unit, an electric energy storage unit, a fixing unit, and a packaged layer. The power generation main body is in a multilayered film structure, comprising a piezoelectric material layer on the center of the power generation main body and electrode layers on two sides of the piezoelectric material layer. The power generation main body is adhered to the surface of a heart to acquire energy of the heart to generate electric energy. The output unit is connected with the electrode layers, and the output unit is used to output current generated by the power generation main body to the electric energy storage unit. The electric energy storage unit is used to store electric energy and supply power for the pulse generator. The fixing unit is on the edge of the power generation main body, and is used to fix the power generation main body on the epicardium. The packaged layer covers the surfaces of the power generation main body, the output unit, the electric energy storage unit, and the fixing unit. The self-energized bladder pacemaker does not need to change batteries, and can be used for whole life.
Owner:SECOND MILITARY MEDICAL UNIV OF THE PEOPLES LIBERATION ARMY

Guiding type semi-automatic massager

The invention belongs to the field of massagers, and particularly relates to a guiding type semi-automatic massager. The guiding type semi-automatic massager comprises a main body; a back cushion is arranged on the rear part of the main body; side plates are arranged on the left side and the right side of the main body; a sitting cavity is formed between the side plates; a middle plate is fixedlyconnected to the part, between the two side plates, of the main body; the length of the middle plate is smaller than that of the side plates; a pair of clamping bags is arranged between the side plates and the middle plate; the clamping bags are slidably connected with the side plates and the middle plate; the clamping bags communicate with air pumps through air pipes and control valves; side groove are formed in the sides, away from the clamping bags, of the side plates; driving wheels and driven wheels are rotationally connected with the side grooves; the driving wheels and the driven wheelsare sleeved with conveying belts; and baffles are fixedly connected to the outer sides of the conveying belts. By inflating the clamping bags and controlling sliding blocks to drive the clamping bagsto slide at the same time, the clamping bags clamp a leg and then drag the leg, muscles of the leg are effectively contracted and relaxed, and meanwhile the flexibility of the clamping bags can improve the leg relaxing effect, eliminate fatigue and improve comfort.
Owner:杭州黎桂电子商务有限公司

Novel cable retracting device

The invention relates to the field of cables, and discloses a novel cable retracting device. The novel cable retracting device comprises a cable placement box body, the cable placement box body comprises a bottom plate, front and rear side plates and left and right side plates, a cable is placed inside the cable placement box body, a wire supplying hole is formed in the left side plate of the cable placement box body, a wire outlet hole is formed in the right side plate of the cable placement box body, a rotary through hole is formed in the bottom plate of the cable placement box body, an external thread rotary rod is inserted in the rotary through hole, the outer end of the external thread rotary rod is connected with an inner thread screw sleeve in a threaded mode, the inner thread screwsleeve is located on the lower side of the bottom plate of the cable placement box body, a handle is fixedly connected to the lower end of the external thread rotary rod, a limiting plate is fixedlyconnected to the upper end of the external thread rotary rod, the limiting plate is located in the cable placement box body, a gear is fixedly connected to the upper end of the limiting plate, and racks are connected to the left end and the right end of the gear in an engaged mode correspondingly. The cable can be effectively retracted, the required length of the cable when in use is effectively controlled, and the phenomenon of cable winding or knotting is decreased.
Owner:迅立达电梯有限公司

Processing method of high-compactness concrete precast slab capable of preventing surface cracking

The invention discloses a processing method of a high-compactness concrete precast slab capable of preventing surface cracking, and belongs to the technical field of concrete precast slabs. Accordingto the processing method, defoaming net-forming rods can be innovatively introduced and are uniformly distributed through a uniform magnetic field before being solidified, then the defoaming net-forming rods are forced to move from the middle of concrete to the surfaces of the two sides, bubbles in the concrete can be effectively eliminated, so that the compactness of the formed concrete is improved, and the air hole defect is greatly improved; after the defoaming net-forming rods are migrated to the surface of the concrete, the splitting action of the defoaming net-forming rods is triggered in a heating mode, so that the defoaming net-forming rods are in contact with the adjacent defoaming net-forming rods and are combined to form a net; and through melting and re-curing of phase change nodes, a high-strength connecting surface is formed, a net-shaped reinforcing structure is formed on the surface of the concrete, and the contraction force is triggered when the temperature is reduced,so that the phenomena of water seepage and cracking of the surface of the concrete are prevented, and the forming strength and the compactness of the concrete are effectively improved.
Owner:郭冰晨

A kind of high-performance tpu superfine fiber synthetic leather and its clean production method

The invention provides high performance TPU superfine fiber synthetic leather and a cleaner production method thereof. The method comprises the following steps: a piece of superfine fiber synthetic leather base cloth is dipped by a dipping tank which contains shrinking and boarding liquid, the synthetic leather base cloth enters a continuous type boarding machine, and a piece of boarding base cloth is obtained; a calendering production line is used, calendering materials are thrown into a high speed kneader for mixing, after mixing, plastication and calendering of the materials, the materials and a piece of release paper are laminated, in order to obtain a release paper laminated TPU film; a synthetic leather dry method production line with a piece of PUR scraping equipment is used, PUR is scraped on the release paper laminated TPU film, the boarding base cloth is attached, the release paper is peeled, and the product is obtained. Shrinking and boarding technology is used, in order to greatly improve flexibility, permeability and moisture permeability of the superfine fiber synthetic leather base cloth; the scraping and lamination technology of release paper transferred coating and reaction type polyurethane hot melt adhesive is used, the thermoplastic polyurethane calendering film is laminated on the superfine fiber synthetic leather base material in order to obtain the TPU superfine fiber synthetic leather with soft hand feeling, mechanical properties and good usage performance.
Owner:JIANGSU KEMEI NEW MATERIALS

Arc-shaped sheet metal workpiece stamping mold

PendingCN113953384AReduce resource consumptionStamping and demoulding are orderly and efficientShaping toolsMetal-working feeding devicesPhysicsEngineering
The invention relates to the field of molds, in particular to an arc-shaped sheet metal workpiece stamping mold which comprises a bottom plate, wherein a side plate is fixedly connected to the side edge of one end of the bottom plate, a transverse plate is fixedly connected to the center of one side of the side plate, the transverse plate and the bottom plate are located on the same side of the side plate, a sliding seat is slidably connected to the top of the transverse plate, a cutting assembly is arranged at the joint of the sliding seat and the transverse plate, and a top plate is fixedly connected to one side of the top of the side plate. The stamping mold is used for overcoming the defect exists under the special condition that an existing stamping mold for the arc-shaped metal plate workpiece is inconvenient for technicians to demold manually, the existing stamping mold used in the environment has the defect of low machining efficiency, on one hand, due to the fact that the procedures of feeding, cutting and demolding are carried out separately, the machining efficiency is reduced, and on the other hand, the workpiece is processed into the sleeve and then sleeved on the mold, so that the demolding is very inconvenient, and the sleeve is easily clamped on the mold.
Owner:周于昊

High performance TPU superfine fiber synthetic leather and cleaner production method thereof

The invention provides high performance TPU superfine fiber synthetic leather and a cleaner production method thereof. The method comprises the following steps: a piece of superfine fiber synthetic leather base cloth is dipped by a dipping tank which contains shrinking and boarding liquid, the synthetic leather base cloth enters a continuous type boarding machine, and a piece of boarding base cloth is obtained; a calendering production line is used, calendering materials are thrown into a high speed kneader for mixing, after mixing, plastication and calendering of the materials, the materials and a piece of release paper are laminated, in order to obtain a release paper laminated TPU film; a synthetic leather dry method production line with a piece of PUR scraping equipment is used, PUR is scraped on the release paper laminated TPU film, the boarding base cloth is attached, the release paper is peeled, and the product is obtained. Shrinking and boarding technology is used, in order to greatly improve flexibility, permeability and moisture permeability of the superfine fiber synthetic leather base cloth; the scraping and lamination technology of release paper transferred coating and reaction type polyurethane hot melt adhesive is used, the thermoplastic polyurethane calendering film is laminated on the superfine fiber synthetic leather base material in order to obtain the TPU superfine fiber synthetic leather with soft hand feeling, mechanical properties and good usage performance.
Owner:JIANGSU KEMEI NEW MATERIALS

Foam cutting machine

The invention provides a foam cutting machine. The foam cutting machine comprises a shell, a funnel, a hydraulic pump and a controller, wherein the top end of the shell is fixedly connected with a funnel through a sleeving groove, and hydraulic pumps are separately fixedly connected to the middle parts of the front end and the rear end of the shell; the controller is embedded in the middle of thefront end of the shell; supporting plates are integrally arranged at the bottoms of the front end and the rear end of the shell; and a movable inner plate is integrally arranged on the inner wall of the funnel; an elastic traction rope is fixedly connected to the bottom end of the movable inner plate; a top groove is embedded in the middle of the top end of the funnel; correcting wheels are fixedly connected to the front side and the rear side of the bottom end of the inner wall of the funnel; small motors are embedded in the middles of the left end and the right end of the funnel respectively; a rotating shaft is movably connected to the middle of the inner wall of the correcting wheels; a friction wheel body is fixedly connected to the outer wall of the rotating shaft; transverse limiting plates are movably connected to the front end and the rear end of the inner wall of the outer shell separately; and a connecting button is connected to the top end of each transverse limiting platein a threaded mode. The whole device is stable in structure and convenient to use and operate; the cutting efficiency of a foam plate is high; the cutting precision is high; and the time and labor aresaved during cutting.
Owner:湖北世丰新材料有限公司

A configuration optimization method for reactive power compensation in power system

The invention provides a reactive power compensation configuration optimization method for a power system, and belongs to the field of reactive power compensation configuration of the power system. The method comprises the following steps: firstly, establishing an electromechanical transient simulation model of a to-be-optimized power system, and acquiring power flow data and short-circuit currentof each node in the to-be-optimized power system; after the nodes are classified, with consideration of a node load rate, obtaining an initial alternative node configured with reactive compensation,and with consideration of the effect of a reactive voltage source and a multi-infeed interaction factor, performing aggregation to finally obtain a reactive compensation alternative node of the to-be-optimized power system; and optimizing the reactive power capacity required to be configured for each reactive power compensation alternative node by adopting a genetic algorithm to obtain a reactivepower capacity optimization compensation result of each reactive power compensation alternative node. The method is easy to implement and high in accuracy, and is a practical reactive compensation configuration optimization method for the power system.
Owner:TSINGHUA UNIV +2

A New Type of Cable Shrinking Device

The invention relates to the field of cables, and discloses a novel cable retracting device. The novel cable retracting device comprises a cable placement box body, the cable placement box body comprises a bottom plate, front and rear side plates and left and right side plates, a cable is placed inside the cable placement box body, a wire supplying hole is formed in the left side plate of the cable placement box body, a wire outlet hole is formed in the right side plate of the cable placement box body, a rotary through hole is formed in the bottom plate of the cable placement box body, an external thread rotary rod is inserted in the rotary through hole, the outer end of the external thread rotary rod is connected with an inner thread screw sleeve in a threaded mode, the inner thread screwsleeve is located on the lower side of the bottom plate of the cable placement box body, a handle is fixedly connected to the lower end of the external thread rotary rod, a limiting plate is fixedlyconnected to the upper end of the external thread rotary rod, the limiting plate is located in the cable placement box body, a gear is fixedly connected to the upper end of the limiting plate, and racks are connected to the left end and the right end of the gear in an engaged mode correspondingly. The cable can be effectively retracted, the required length of the cable when in use is effectively controlled, and the phenomenon of cable winding or knotting is decreased.
Owner:迅立达电梯有限公司

A kind of suede artificial superfine fiber synthetic leather and its clean production method

The invention relates to suede simulation type superfine fiber synthetic leather and a clean production method thereof. The method comprises the steps of impregnating superfine fiber synthetic leather base cloth through an impregnating tank full of shrinking and kneading liquid, entering a continuous graining machine, drying the superfine fiber synthetic leather base cloth, and obtaining shrinking and kneading base cloth; adopting a flocking production line provided with PUR lattice roller coating equipment, coating PUR on the shrinking and kneading base cloth, sprinkling collagen fiber, adhering on the shrinking and kneading base cloth, cooling and winding, and placing to obtain flocking base cloth; adopting a brushing machine for removing the collagen fiber which is not firmly adhered onto the flocking base cloth, and obtaining the suede simulation type superfine fiber synthetic leather. According to the suede simulation type superfine fiber synthetic leather and the clean production method thereof provided by the invention, a shrinking and kneading technology is adopted, so that the softness, the air permeability and the water vapor permeability of the superfine fiber synthetic leather base cloth are greatly improved; a PUR lattice roller coating composite technology is adopted, so that the collagen fiber is compounded onto the superfine fiber synthetic leather base cloth, and the suede simulation type superfine fiber synthetic leather with the appearance being similar to the appearance of natural suede leather, and the mechanical property and the hygiene property being superior to the mechanical property and the hygiene property of the natural suede leather is obtained.
Owner:JIANGSU KEMEI NEW MATERIALS
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