154results about How to "Quick Glue" patented technology

The invention relates to a photosensitive PRP (platelet-rich plasma) gel and a preparation method and application thereof. The preparation method comprises the following steps of mixing a biocompatible medium solution of a macromolecule modified by an o-nitrobenzyl photo response group and an extracted PRP according to a certain ratio, so as to form a gel precursor solution; then, radiating the gel precursor solution by light, and enabling the o-nitrobenzyl group in the macromolecule modified by the o-nitrobenzyl photo response group to generate photochemical reaction under the excitation action of a light source, so as to produce an aldehyde functional group; generating coupling reaction with amino distributed at the surface of the protein in the PRP to form an imine bond, so as to realize the preparation of the photosensitive PRP gel. Compared with the prior art, the photosensitive PRP gel prepared by the method has the advantages that the internal cell factors can be slowly released, and the tight and seamless bonding between the PRP gel and wounds is realized.

The invention provides a hydrogel compound, a preparation method and the application. The preparation method comprises the following steps: (1), preparing a hyaluronic acid solution; (2), preparing aldehyde-based modified hyaluronic acid; (3), preparing hydrazide derivatization hyaluronic acid; (4), mixing the aldehyde-based modified hyaluronic acid and the hydrazide derivatization hyaluronic acidinto hydrogel. The method ensures that a final product can be matched with a clinical arthroscopy on the basis of guaranteeing excellent biocompatibility through modification on hyaluronic acid, ensures that hydrogel is rapidly formed in any defective parts through one-time minimally invasive injection, can be further tightly adhered to the defective parts, so as to reduce burden of patients as far as possible, and achieve the effect of promotion of cartilage repair.

The invention belongs to the technical field of biological materials, and discloses a hydrogel material for 3D bioprinting and a preparation method and application of the hydrogel material. The hydrogel material comprises the following components in percentages by mass: 0.5-10% of gellan gum and/or derivatives, 0.1-20% of PEG and/or derivatives thereof, 0-1% of a crosslinking initiator, 0-15% of biologically active components and the balance of a solvent. The hydrogel material is double-network hydrogel based on the gellan gum and PEG; interpenetrating double-network structures are formed in a physiological environment; and the hydrogel material has good structure and dimensional stability, and has the advantages of quick gum formation under physiological conditions, excellent cell compatibility, small immunological rejection, high cell encapsulation efficiency, controllable mechanical strength, biodegradability and the like. The hydrogel material is applied to 3D bioprinting; the shortcomings of low curing speed, harsh curing conditions, limited mechanical properties, poor cell compatibility and the like are overcome; and the hydrogel material has obvious advantages and good industrialized prospect.

The invention belongs to the field of plywood processing, and particularly relates to an efficient gluing device for plywood. The efficient gluing device for the plywood aims to solve the problems that an existing gluing device is not uniform in gluing, and automatic feeding and discharging cannot be realized. The device comprises a base, a feeding conveying belt, a supporting frame and a gluing mechanism, wherein a plurality of first telescopic rods are fixed at one end of the base, and the output shaft of the first telescopic rods are connected with a feeding plate with an L-shaped verticalsection; a mounting groove is formed in the top end of the feeding plate, and a rodless air cylinder is arranged in the mounting groove; the output shaft of the rodless air cylinder is connected witha material pushing plate slidably connected to the top end of the feeding plate, one end of the feeding plate is provided with the feeding conveying belt, and one end of the feeding conveying belt isarranged on the base; the upper end face of the feeding conveying belt and the upper end face of the feeding plate are located on the same plane, and a gluing mechanism positioned on one side of the feeding plate is arranged above the feeding conveying belt; according to the device, the automation degree is high, the automatic feeding and discharging of plates can be realized, the gluing is uniform, and the gluing effect is good.

The invention discloses a glue filling device and a glue filling method thereof. The glue filling device comprises a fixed frame, a transverse push mechanism, a top push mechanism, a glue filling mechanism, a heating mechanism and a positioning mechanism, wherein the fixed frame is provided with a base plate; the transverse push mechanism is arranged on the base plate; the top push mechanism is arranged on the base plate; the glue filling mechanism is arranged on the base plate; the heating mechanism is positioned above the transverse push mechanism; the positioning mechanism is accommodated in the transverse push mechanism and is used for positioning a workpiece to be subjected to glue filling; and the mechanisms cooperate with one another, the workpiece to be subjected to glue filling ispositioned accurately, each part is conveyed stably, and rapid and safe glue filling can be realized.

The invention relates to the field of oil and gas chemical industry, and concretely relates to a liquid temporary plugging agent for rubber plugs, and a preparation method thereof. The raw materials of the liquid temporary plugging agent for rubber plugs mainly include, by mass, 10-25% of a monomer, 0.05-0.5% of a crosslinking agent, 0.1-0.5% of an initiator 1-5% of inorganic aggregates and 0.01-0.1% of an additive, wherein the additive comprises at least one of ethylenediaminetetraacetic acid, disodium ethylenediaminetetraacetate, thiourea and sodium citrate. At least one of ethylenediaminetetraacetic acid, disodium ethylenediaminetetraacetate, thiourea and sodium citrate is combined with the monomer, the crosslinking agent, the initiator and the inorganic aggregates to make the liquid temporary plugging agent for rubber plugs have the advantages of fast gel formation and high strength. The liquid temporary plugging agent can fast form a gel at a low oil reservoir temperature, and hasstable gel properties.

The invention discloses sulfhydrylated hyaluronic acid as well as a preparation method and application thereof. The sulfhydrylated hyaluronic acid is obtained by sulfhydrylation modification of hydroxyl sites of hyaluronic acid or salt thereof. According to the invention, the hyaluronic acid or salt thereof reacts with a disulfide compound to generate a hyaluronic acid disulfide compound, and then a reducing agent is added to reduce disulfide bonds into a sulfydryl group, so the sulfhydrylated hyaluronic acid is obtained. The sulfhydrylated hyaluronic acid has the characteristics of controllable sulfydryl substitution degree, fast dissolution, fast gelling and good biocompatibility, and can be applied to the fields of skin care products, joint injection, tissue filling, cell culture and the like.

The invention belongs to the technical field of leather processing, in particular relates to leather adhesion assistant gluing equipment and aims to solve the technical problem of providing the leather adhesion assistant gluing equipment which is capable of implementing rapid gluing and has an extrusion function. According to the technical scheme, the leather adhesion assistant gluing equipment comprises a base, a fixing rack, a connecting rack, and the like, wherein the fixing rack and the connecting rack are arranged on the base. The equipment is capable of implementing rapid gluing and hasthe effect of an extrusion function; according to the equipment, by pushing a mounting rack to move leftwards, the surface of leather can be scraped by a scraper till a rough state, and meanwhile, automatic gluing can be achieved; and according to the equipment, by pushing the mounting rack to move rightwards, a glue can be uniformly smeared, the glue in a cylinder can be replenished, a pressing plate can be also driven to move downwards, and two pieces of leather to be bonded can be extruded and bonded tightly.

The invention belongs to the technical field of materials, and particularly relates to a degradable core-shell type oxidized calcium alginate gel microsphere, and a preparation method and applicationthereof. According to the preparation method disclosed by the invention, the degradable core-shell type oxidized calcium alginate gel microsphere is prepared on the basis of micro-fluidic control; andan inner oil-phase fluid, a water-phase fluid and an outer oil-phase fluid form oil/water/oil double emulsion droplets, an acidic oil phase fluid containing organic acid is introduced into the downstream position of the oil/water/oil double emulsion droplets, calcium hydrochloride nanoparticles in a water phase of the oil/water/oil double emulsion droplets are rapidly dissolved, and free calciumions are released, so oxidized alginate in a water phase and the calcium ions are initiated to undergo rapid cross-linking so as to form a gelatinous oxidized alginate layer, and the degradable core-shell type oxidized calcium alginate gel microsphere is obtained. The degradable core-shell type oxidized calcium alginate gel microsphere prepared by the preparation method has the advantages that a size structure is uniform and monodispersity is high.

The invention provides a glue coating apparatus for a glued door. The glue coating apparatus comprises a base, wherein a glue rolling device is arranged on the base; a flattening and plate-feeding device is arranged above the glue rolling device; the glue rolling device comprises a glue box arranged on the base; a glue dissolving device is arranged at the bottom of the glue box; a glue roller is arranged in the glue box, and is erected on bearing seats located at the two ends of the glue box by a rotary shaft; a glue scraping rod is arranged on the front side of the glue roller; and a glue coating brush which is as high as and coaxial with the glue roller is arranged on the rear side of the glue roller. According to the glue coating apparatus, the flattening and plate-feeding device drives a fireproof plywood to be fed so the fireproof plywood is rapidly glued in a feeding process; the flattening and plate-feeding device can be used for flattening the concave-convex fireproof plywood; two adjacent glue coating devices which are arranged at the rear end of the base can be used for uniformly coating the feeding top end of the fireproof plywood with the glue; and the glue coating apparatus can be operated by only two persons for rapid and uniform coating of glue, so production efficiency is greatly improved.

The invention relates to a sealant gluing device, and particularly relates to a pipeline sealant gluing device for floor heating pipeline mounting. The pipeline sealant gluing device for floor heatingpipeline mounting aims at achieving the technical purposes that the pipeline thread position can be automatically glued, a sealant cannot flow into a pipeline, and the gluing speed is high. The pipeline sealant gluing device for floor heating pipeline mounting comprises a bottom frame, a mounting plate and the like, wherein the mounting plate is fixedly connected to one side of the bottom frame.According to the pipeline sealant gluing device, a sliding handle is pushed, a disc and a T-shaped solid rod can be driven to fix a floor heating pipeline, the floor heating pipeline can be driven torotate through a speed reduction motor, a top plate can be driven to make contact with or be separated from a rubber pipe through movement of the sliding handle, accordingly, the sealant can be discharged to the floor heating pipeline, and the floor heating pipeline thread position can be glued.

The invention relates to a laminating machine, in particular to an automatic FPC reinforcing board laminating machine. The technical problem to be solved is to provide the automatic FPC reinforcing board laminating machine which automatically glues a reinforcing board, automatically aligns an FPC board and the reinforcing board and performs full-automatic lamination. According to the technical scheme, the automatic FPC reinforcing board laminating machine comprises a rack, a pushing mechanism and material pushing mechanisms, the pushing mechanism is arranged on the rack; the machine also comprises a support frame fixed on the rack; a reinforcing board placing box which is positioned on the rack, is positioned on one side of the pushing mechanism, is mounted on the rack through a support frame and is used for placing the reinforcing board, a movable seat mechanism which is connected with the rack; and an FPC board placing box. According to the automatic FPC reinforcing board laminatingmachine, the functions of automatic feeding and rapid glue application are achieved, manual glue application on the reinforcing board and the aligned assembling of the FPC board and the reinforcing board are avoided, and the final assembling efficiency of the FPC reinforcing board can be effectively improved.

The invention belongs to the technical field of biomedical dressings and relates to an end-capped modified polyethylene glycol cross-linking agent having an ultraviolet light response function, a preparation method and a hydrogel dressing containing the cross-linking agent and a preparation method thereof. The technical problem is solved that wound pain and secondary wounds care caused by when anexisting hydrogel dressing is removed for secondary wound treatment. The modified polyethylene glycol cross-linking agent having the ultraviolet light response function is formed by adopting an injectable in-site gel forming mode, and the gel forming mode has very good adaptability to wound shapes and meanwhile has better fitting property compared with a blocky dressing to be gelled without auxiliary fixing materials. When wounds need to be further treated, regional selective irradiation can be performed through 10 mw/cm<2> ultraviolet light of 365 nm, gel softening and degradation are achieved. Compared with other dressings, the function can prevent wound pain during gel removal and prevent newly growing tissues from being physically harmed to cause secondary wounds.

Provided is a preparation method of a dexamethasone calcium phosphate hydrogel. By mixing a dexamethasone sodium phosphate solution with a Ca<2+> containing aqueous solution, the dexamethasone sodium phosphate solution and the Ca<2+> containing aqueous solution can spontaneously form the dexamethasone calcium phosphate hydrogel in a self-assembly mode. The preparation method of the dexamethasone calcium phosphate hydrogel has the advantages of being simple in preparation, quick in hydrogel forming and accurate and controllable in drug loading capacity.

The invention discloses a floor glue brushing device for construction engineering, and relates to the technical field of construction engineering. A push handle is arranged at the upper end of a casing, a sealing cover is arranged at the upper end of the casing, a liquid level window is arranged on the casing, a heater is arranged in the casing, and is connected with an operation mechanism, a glue brushing roller is arranged at the left lower end of the casing, a gear I is arranged on a rotary shaft of the glue brushing roller, a mixing roller is arranged in the casing, and a gear II is arranged on the rotary shaft of the mixing roller, and is engaged with the gear I. The floor glue brushing device has the advantages that the quick glue brushing is conveniently realized, the easiness in blockage is avoided, the operation is simple and convenient, the convenience in use is realized, and the working efficiency is high.

The invention relates to the technical field of shoe processing, especially to a rapid glue spraying device for processing of leather shoes. The rapid glue spraying device comprises a baseboard. A machining table is fixedly connected to the central position of the upper surface of the baseboard. A shifting board is arranged above the machining table. A glue storage box is fixed on the shifting board. A movable plate is arranged inside the glue storage box. Two sides of the movable plate are both provided with sealing gaskets. The central position of the upper surface of the movable plate is fixedly connected with a push rod. The central position of the lower surface of a top plate is fixedly connected with a telescopic cylinder. The bottom of the glue storage box is fixedly connected witha conduit. One end of the conduit, far from the glue storage box, penetrates through the movable plate. The conduit is provided with a valve. One end of the conduit, far from the glue storage box, isfixedly connected with a nozzle. The lower surface of the movable plate at one side of the nozzle is fixedly connected with a glue covering device. Two sides of the shifting board are both fixedly connected with connecting rods. One end of each connecting rod, far from the shifting board, is fixedly connected with a lifting device. The glue spraying device of the invention has a simple structure and is worth of promotion.

The invention relates to an intelligent fuse glue sealing machine of environment-friendly firework. The intelligent fuse glue sealing machine comprises a glue pressing bucket, a dispensing head, an X-axis mechanical arm, a Y-axis mechanical arm, a Z-axis mechanical arm, a bottom box, a worktable, a left stand column and a right stand column, wherein the Y-axis mechanical arm is arranged on the bottom box; the left stand column and the right stand column are arranged on the two sides of the bottom box respectively; the tops of the left stand column and the right stand column are connected with the X-axis mechanical arm; the Z-axis mechanical arm is arranged on the X-axis mechanical arm; and the dispensing head is arranged on the Z-axis mechanical arm and is connected with the glue pressing bucket by a hose. The intelligent fuse glue sealing machine has the advantages of uniformity in glue coating, high production efficiency, stable product quality, automation in operation and environmental friendliness.

The invention discloses a continuous multi-station gluing processing device for air-conditioning pipe fittings, which includes a frame and a rotatable turntable set on the frame and driven by a motor. One side of the fixture is connected with a rubber box for extruding glue The glue spray head is provided with a glue brush on the frame. The glue brush is rotatably connected to the reciprocating frame. The reciprocating frame can drive the glue brush to reciprocate between the glue spray head and the fixture. There is a start switch under the fixture. The start switch is connected with the motor and the reciprocating frame. Compared with the prior art, the present invention triggers the start switch by installing the pipe to be processed in the fixture, so that the clamp is controlled by the control component to complete the clamping action, so that the fixture with the newly installed pipe is rotated to the position that matches the glue brush , the glue spray head provides glue for the gluing brush, and drives the gluing brush to move to the fixture through the reciprocating frame to apply glue to the parts to be glued on the fixture, thereby realizing mechanized gluing processing and achieving fast and uniform gluing , improve processing efficiency.

The invention discloses a protein isoelectric focusing electrophoresis method and glue preparation device, and belongs to the technical field of bioseparation detection. The method comprises the stepsof glue preparation, glue filling, pre-electrophoresis, electrophoresis, gel fixing, decoloration, dyeing and the like. According to the method, the feeding mode of a sample and voltage and electrophoresis time of pre-electrophoresis and electrophoresis are changed, so that obtained protein electrophoresis bands are clear, good in separation degree and do not diffuse or trail, the problem that inthe prior art, the electrophoresis time is long, and protein diffuses and trails is effectively solved, and the glue preparation success rate is greatly increased. The glue preparation device comprises a glue preparation support, a fixed frame, glue preparation glass, a gasket, an anti-leakage pad and other components. By improving the structure of the glue preparation device, the consumption ofa reagent is reduced, glue filling is fast, no bubble is generated, glue gathering is even, the glue preparation success rate is greatly increased, and meanwhile the inspection cost is reduced.

The invention discloses TF series paper tube base paper and a preparation process thereof, and mainly relates to the technical field of papermaking, and the paper is divided into two levels of TF400 and TF500. The paper has the following technical indexes: the quantification is 450 g/m<2>, the transverse quantification allowable error range is +/-3.0%, the longitudinal quantification allowable error is +/-1.5%, the tightness is 0.74 to 0.76 g/cm<3>; the longitudinal ring crush index of TF400 is larger than or equal to 20 N*m/g, the interlayer bonding strength is larger than or equal to 400 J/m<2>, the longitudinal ring crush index of TF500 is larger than or equal to 23 N*m/g, the interlayer bonding strength is larger than or equal to 500 J/m<2>, the water absorption value (60s) is smaller than or equal to 150 g/m<2>, and the finished paper moisture content is 4-6%. The manufacturing process of the paper tube base paper comprises the steps of performing pulping, papermaking and rewinding to obtain the paper tube base paper, and then packaging the finished paper. Pulping is carried out in the pulping process, and starch in pulp is added in the paper forming process. The invention has the advantages of low cost, low water content, low possibility of moisture absorption, high glue absorption speed, high pipe forming pressure, short drying time and the like.

The invention discloses a butyl rubber coating machine which comprises first and second unreeling mechanisms, an automatic skew adjustment mechanism, a rubber scraping and coating mechanism, a compounding mechanism, a cooling forming mechanism and a rolling-up mechanism, and is characterized in that a first discharge material of the first unreeling mechanism enters the compounding mechanism after passing through the automatic skew adjustment mechanism, a first tension control roller and the rubber scraping and coating mechanism; a second discharge material of the second unreeling mechanism enters the compounding mechanism after passing through a second tension control roller; a compound material compounded by the compounding mechanism enters the rolling-up mechanism after passing through the cooling forming mechanism and a third tension control roller; the first, second and third tension control rollers are respectively arranged on first, second and third tension sensors; the first tension sensor is electrically connected with a first magnetic powder brake of the first unreeling mechanism; the second tension sensor is electrically connected with a second magnetic powder brake of the second unreeling mechanism; and the third tension sensor is electrically connected with a third magnetic powder brake of the rolling-up mechanism. The butyl rubber coating machine can be applicable to coating of poor materials of high-viscosity runners, such as butyl rubber, is good in coating quality, and can improve the production efficiency.