58results about How to "Tightly bonded" patented technology

The invention discloses a full-automatic paperboard gluing and laminating system which comprises a rack as well as a lifting and transferring mechanism, a connecting and conveying mechanism, a gluing mechanism, a laminating mechanism and a pressing mechanism which are arranged on the rack, and a paperboard on a lifting seat can be driven to the connecting and conveying mechanism through a suction cup; the connecting conveying mechanism can feed paperboards into the gluing mechanism, the paperboards can be coated with glue through the space between the upper glue roller and the lower glue roller, and the film covering mechanism comprises a paperboard transferring mechanism and a film conveying mechanism located below the paperboard transferring mechanism. The side edge of the paperboard coated with the glue is located in the conveying groove and conveyed to the film conveying belt through the conveying wheel, a film is driven to the film conveying belt through the film conveying mechanism to be bonded with the paperboard on the film conveying belt, and the bonded paperboard is tightly pressed after passing through the upper pressing roller and the lower pressing roller.

The invention belongs to the technical field of backfill materials, and particularly discloses a road shallow wet and soft foundation backfill material and a preparation method thereof. The road shallow wet and soft foundation backfill material is prepared from the following raw materials in parts by weight: 40 to 50 parts of building residue soil, 10 to 15 parts of modified diatomite, 15 to 20 parts of cement, 7 to 10 parts of modified chitosan, 60 to 70 parts of water and 5 to 9 parts of sodium carbonate. The road shallow wet and soft foundation backfill material prepared in the invention has relatively good strength, crack resistance and tensile strength, so that the bonding force between the building residue soil and other components is relatively good, and the structural strength and stability of the backfill material are improved.

The full-automatic film laminating machine comprises a rack, a motor supporting plate is fixedly connected to any side of the lower surface of the rack, a motor is fixedly connected to the interior of the motor supporting plate in a penetrating mode, and a threaded rod is fixedly connected to the driving end of the motor; the end, away from the motor supporting plate, of the lower surface of the rack is fixedly connected with a supporting plate, and the end, away from the motor, of the threaded rod is rotationally connected into the supporting plate in a penetrating mode. By arranging the threaded rod and the threaded sleeve, the mounting plate moves along the guide rail groove, the flexibility of the film laminating machine in the operation process is improved, inspection and maintenance are easy, by arranging the damper and the tensioning roller, the film roller is more stable in the plastic film conveying process, wrinkles of the plastic film are avoided, deviation is prevented, and the service life of the film laminating machine is prolonged. By arranging the pneumatic mechanism, uniform pressure is applied to the film laminating roller in the film laminating process, and it is avoided that no bubble exists between a plastic film and a printed matter and the plastic film and the printed matter are tightly attached.

The invention discloses a conductive film anti-bending durability testing device and method, and relates to the technical field of anti-bending durability testing, the conductive film anti-bending durability testing device comprises a machine body and a control panel fixedly mounted on the machine body; and the clamping test part is mounted on the machine body and is used for clamping and fixing the two ends of the conductive film and carrying out bending durability test on the two sides of the conductive film. The device has the advantages that the testing efficiency is improved by simultaneously carrying out three-point bending testing on the conductive film, constant tension of the conductive film is ensured during testing, multi-tension testing can be carried out, the testing accuracy is improved, in addition, centrifugal force generated by rotation of a second gear is used for compensating a gap generated by frictional wear, and the testing precision is improved. The second toothed plate and the second gear are kept in a tight meshing state, the transmission response speed of the gear and the toothed plate is increased, the tension stability of the conductive film is ensured, the test accuracy is further improved, the test result is more representative, and the bending resistance of the conductive film can be better indicated.

The present invention relates to the technical field of target materials and target material manufacturing, and specifically to a high-conductivity lithium phosphate sputtering target material for solid-state batteries and a preparation method thereof. The high-conductivity lithium phosphate sputtering target material for solid-state batteries of the present invention comprises the following preparation steps: raw material powder mixing, primary ball milling, calcination, secondary ball milling, and hot pressing sintering. The composite powder obtained in the preparation process has excellent sphericity, and the target material finally obtained has high density and low resistivity. When the target material is used as a sputtering target material to prepare a thin film, it can meet the requirements of solid-state batteries for the thin film in terms of conductivity.

The invention relates to the technical field of composite material preparation, and specifically discloses a composite preparation process for enhancing the mechanical properties of marine laminated wood. Wood powder, epoxy resin, antibacterial modified basalt fiber-titanium dioxide, a stabilizer and a curing agent are uniformly mixed, kneaded in an open mill, and hot-pressed in a hot press to obtain the marine laminated wood. The antibacterial modified basalt fiber-titanium dioxide contains a large number of active groups, which can form a three-dimensional staggered support network in a matrix, generate a cross-linked network structure, and effectively improve the mechanical properties of the matrix. The epoxy resin is used as an adhesive with strong bonding force, and can tightly bond the wood powder and other materials together, thereby reducing the waste of wood and improving the utilization rate of wood to achieve environmental benefits, forming a laminated wood with stable structure and high strength. Through a curing cross-linking reaction, a mesh structure can be formed, which further enhances the overall mechanical strength of the laminated wood and prolongs its service life.

The invention discloses a high-rate high-nickel cobalt-free positive electrode material and a preparation method and application thereof, the chemical formula of the positive electrode material is LiNi < x > Mn < 1-x-y-z > M < y > N < z > O < 2 >, M is one or more of Al, Zr, Y, W, Nb, Ce, Ti, Mg, Sr, B, P or Si, and N is an MBene material coating layer, 0.5 lt; xlt; 1.0, 0 lt; yt; Yt; 0.1, 0 lt; zlt, zlt; 0.1, 0 lt; x + y + zlt; the preparation method comprises the following steps: 1, selecting a porous precursor, carrying out lithium matching and sintering to obtain a positive electrode material matrix, polishing the positive electrode material matrix, separating out a polishing agent and fine powder generated by polishing, coating an MBene material, and annealing and sintering to obtain the high-nickel cobalt-free positive electrode material with a porous structure inside and a coating layer with stable chemical properties and high conductivity on the surface; when the composite material is used for a lithium ion battery, the pulping viscosity change is small, the rate capability is good, and the cycling stability is remarkably improved.

The utility model relates to a wear-resistant acid and alkali-resistant paint coating structure which comprises a primer layer, a waterproof layer, a purification and adsorption layer, an acid and alkali resistant layer, a temperature change resistant layer, an antibacterial layer and a wear-resistant layer which are sequentially arranged from bottom to top, wherein the purification and adsorption layer comprises a ceramic particle layer; the acid and alkali resistant layer comprises a polytetrafluoroethylene layer; particles in the ceramic particle layer are embedded into the polytetrafluoroethylene layer; the method has the technical effect of double adsorption of acid and alkali.

The utility model relates to the technical field of automobile seat fabric processing, and discloses an automobile seat fabric compounding device which comprises a processing table, the right end of the processing table is fixedly connected with a bonding mechanism, and the top of the bonding mechanism is fixedly connected with an adjusting mechanism; the bonding mechanism comprises a motor, the motor is fixedly connected to the right end of the machining table, one end of the motor is fixedly connected with a lead screw, the surface of the lead screw is in threaded connection with a threaded block, the left side and the right side of the threaded block are fixedly connected with supporting blocks correspondingly, and long rods are slidably connected into the supporting blocks. The top of the threaded block and the top of the supporting block are fixedly connected with a U-shaped frame. According to the automobile seat fabric compounding device, the flattening rods extrude fabrics, so that air possibly existing between the fabrics is exhausted, the phenomena of gaps and bumps between multiple layers of fabrics are avoided, glue in the fabrics is uniformly distributed, the fabrics are bonded more tightly, and the compounding forming quality of the automobile seat fabrics is improved.

The present application discloses a high-strength plastic pallet and a preparation method, wherein the high-strength plastic pallet comprises the following raw materials by weight: 70-95 parts of high-density polypropylene, 5-10 parts of epoxidized soybean oil, 1-3 parts of polytetrafluoroethylene, 4-8 parts of hydroxypropyl methylcellulose, 2-5 parts of silane coupling agent, 20-30 parts of filler, 14-20 parts of styrene-butadiene rubber, 10-15 parts of polyaromatic oxadiazole fiber, 5-10 parts of calcium carbonate whisker, and 1-2 parts of antioxidant. The high-strength plastic pallet provided by the present application has strong tensile strength and high temperature resistance.

The utility model provides a kind of mutual inductor automatic annular sticker machine, including support, draw belt mechanism, gluing wheel, press belt mechanism, cut belt mechanism and manipulator, when sticking, first by the clamp on draw belt mechanism with the insulating paper tape is clamped to mutual inductor and press belt mechanism between, then the gap of two press belt pieces is aligned mutual inductor edge and moves to mutual inductor center, simultaneously two press belt pieces can follow the action of openable rotating arm, to insulating paper tape with glue is pressed and combined on mutual inductor outer wall, finally by cut belt mechanism, insulating paper tape is cut, after press belt mechanism exits from inside to outside, press belt mechanism rotates a certain angle around mutual inductor center, continue to repeat above-mentioned stick action, to complete the insulating paper coating to mutual inductor periphery, compared with prior art, realize automatic sticking in this way, greatly reduce labor cost, improve production efficiency.

The invention discloses a common-bottom bearing / heat insulation integrated heat insulation structure for a low-temperature storage tank and a forming method and application of the common-bottom bearing / heat insulation integrated heat insulation structure. The heat insulation layer structure comprises an epoxy resin low-temperature adhesive, a polyurethane low-temperature adhesive, a high-pressure-bearing light polyurethane foam layer, a closed prime coat, varnish and a polyurea protective layer. Results show that the density of the high-pressure-bearing polyurethane foam of the common-bottom furnace test piece is not more than 90 kg / m < 3 >, the compression strength is not less than 0.50 MPa, the thermal conductivity is about 0.022 W / (m.K), and the key performance meets design indexes. Compared with an existing model common-bottom PMI core material interlayer scheme, the machining period is shortened by about 85%, the manufacturing cost is reduced by about 94%, the weight of a heat insulation layer is reduced by about 38%, and cost reduction and efficiency improvement are achieved. And meanwhile, by controlling the sweeping speed of the spray gun during spraying operation, the envelope range is determined, the process allowance is guaranteed, and the quality stability of common-bottom products is effectively improved.

The utility model discloses an anti-aging heat-shrinkable sleeve, which comprises an inner layer, and a hot melt adhesive layer, a supporting layer and an outer layer which are sequentially arranged on the outer surface wall of the inner layer, and a plurality of uniformly distributed bonding mechanisms are arranged in the inner layer; the bonding mechanism comprises an extrusion film arranged in the inner layer and a filling cavity arranged between the extrusion film and the inner layer; according to the utility model, through the arrangement of the extrusion film and the supporting ribs, when the sleeve is heated and shrunk, extrusion is generated between the inner layer and the cable, and an adhesive can flow out to fill a gap, thereby ensuring tight bonding between the inner layer and the cable, forming a good protection and sealing layer, preventing external substances such as moisture, dust and the like from invading, improving the safety and reliability of the cable, and prolonging the service life of the cable. And due to the use of the supporting ribs, the overall structural stability of the sleeve is not affected, a good shape can be kept, and the integrity and stability of a connecting part are ensured.

The utility model provides a support-free lens module and a car lamp. The support-free lens module comprises a lens, a substrate, a light source and a heat dissipation assembly. The lens is composed of a lens part and a supporting leg which are integrally formed and are both made of PC materials. The lens part is mounted above the substrate through the supporting legs, and the light source is mounted on the substrate below the lens part; the heat dissipation assembly comprises a fan erected on the back face of the substrate and a plurality of heat dissipation columns installed between the substrate and the fan, and the heat dissipation columns are arranged on the substrate in a matrix mode. The lens is composed of the lens part and the supporting legs which are integrally formed, the lens part and the supporting legs are both made of PC materials, the crystal is directly installed on the substrate through the supporting legs, an additional installation support is not needed, the structure is simplified, the overall size is reduced, and connection between the lens part and the supporting legs is more stable.

The invention discloses a method for preparing asphalt concrete by using surface modified ceramsite, and belongs to the field of composite materials. The ceramsite is modified by the oleic acid / coupling agent, and then the ceramsite is used for preparing the asphalt concrete. According to the method disclosed by the invention, tight combination of the ceramsite and the asphalt concrete is realized, so that the adhesion and the water damage property of the asphalt mixture are improved. The ceramsite modification process of the method is simple and controllable, industrial production can be performed after simple modification, and the obtained asphalt concrete treated by the oleic acid / coupling agent has the advantages of light weight, good mechanical properties, aging resistance, heat preservation, heat resistance and noise reduction, and has wide application potential in the fields of bridges, high-quality roads, environmental protection and the like. The method is low in process requirement, simple, easy to implement and suitable for large-scale engineering application.

The utility model provides an automatic bonding jig for 3C electronic products, which relates to the technical field of electronic products and comprises a control box seat, a mounting plate and a conveying mechanism, and a plurality of lateral pushing mechanisms and a plurality of double-pressure bonding mechanisms are fixedly mounted on the upper side of the mounting plate. The double-pressure bonding mechanism and the lateral pushing mechanism are respectively distributed on two sides of the conveying mechanism, and the upper side of the conveying mechanism is movably connected with a plurality of groups of single template mechanisms. The movable end of the first electric cylinder extends downwards and drives the upper pressing plate to press downwards, the movable end of the second electric cylinder extends upwards and drives the lower pressing plate to press upwards, the upper pressing plate and the lower pressing plate are vertically close to each other under the limitation of the positioning column, and the side, needing to be packaged, of a rechargeable battery of a tablet personal computer or a mobile phone is subjected to two-way press fit; and under the action of upper and lower pressures, the packaging end is pressed and shaped, air at the bonding part is discharged, and meanwhile, glue is uniformly dispersed, so that the bonding is tighter, and the sealing property of the bonding is improved.

The utility model discloses a kind of connecting structure in compliance with lever state drop test, comprising: at least three inserts, each the end of the insert is set as inverted cone;At least two bosses, the boss is located at the inverted cone end of insert, inverted cone groove is formed between adjacent two bosses, the connecting structure in compliance with lever state drop test, by the end of insert is set as inverted cone, and inverted cone groove is formed between boss, when frame body wraps inverted cone end of insert and boss, it will increase the connecting area and connecting point of frame body and insert, boss is embedded in frame body, form the connecting mode similar to mortise and tenon structure, make the combination of both more closely and firmly, the design of this multiple connecting point and larger connecting area can more evenly disperse external force, when being subjected to drop impact, force can be conducted and dispersed through multiple paths, thereby reducing the stress of single point at connecting place, reduce the risk of fracture at the connecting place of insert and frame body.

The application provides a new type of gasket material for intelligent self-lubricating joint bearings and a preparation method and application thereof, and belongs to the technical field of composite materials, self-lubrication and intelligent monitoring, in particular, the preparation method of the new type of gasket material for intelligent self-lubricating joint bearings comprises the following steps: S1: preparing a conductive synergistic material; S2: preparing a modified performance reinforcing material; S3: preparing a phenolic resin diluent; S4: preparing a conductive modified phenolic resin adhesive film; S5: preparing an insulating modified phenolic resin adhesive film; S6: preparing a pretreated fabric; and S7: preparing a new type of gasket material. The new type of gasket material for intelligent self-lubricating joint bearings prepared by the above method can realize the integration of "material-function", intelligently monitor the wear state of the bearing according to the step change of the electrical conductivity, has the advantages of excellent friction-reducing and wear-resistant performance and high sensitivity, can significantly simplify the structure of the bearing system and reduce the maintenance cost, and is suitable for the fields of aerospace and the like.

The invention provides a flexible humidity photoluminescent fiber as well as a preparation method and application thereof, and relates to the technical field of photoluminescent fiber preparation, the preparation method comprises the following steps: S1, firstly, preparing a 2-aminoterephthalic acid solution by taking N, N-dimethylformamide as a solvent; then, adding a rare earth metal organic framework precursor to obtain a precursor mixed solution; s2, performing ultrasonic treatment on the precursor mixed solution; s3, putting the pretreated fiber into the precursor mixed solution subjected to ultrasonic treatment, and carrying out hydrothermal reaction; and S4, after the hydrothermal reaction is finished and the solution is cooled to room temperature, taking out the fiber, and carrying out cleaning and drying post-treatment to obtain the flexible humidity photoluminescent fiber. The obtained flexible humidity photoluminescent fiber has good flexibility, fast response time, excellent stability and luminescence brightness, and has good application prospects in the field of intelligent wearable and the field of visual intelligent fibers.

The invention relates to a preparation method of an adhesive-free polylactic acid double-layer food packaging film. The preparation method comprises the following steps: S1, preparing an anthocyanin solution; s2, preparing a chitosan solution; s3, preparing a polylactic acid solution; and S4, preparing the double-layer film. According to the prepared polylactic acid double-layer food packaging film, on one hand, the prepared packaging film integrates the advantages of a polylactic acid film and a chitosan film in a double-layer composite mode, the surface waterproof performance is improved, meanwhile, the air permeability of the film is reduced, and anthocyanin is successfully applied to the polylactic acid film; on the other hand, the prepared packaging film is sensitive to pH response, the double-layer film can display obvious color change when the food contained in the packaging film goes bad, and more convenient and visual commodity quality information can be provided for consumers.

The present invention relates to the field of multi-color pen barrel injection molds, and discloses a multi-color pen barrel injection mold, including a mounting frame, a movable mold is arranged inside the mounting frame, a mounting groove is opened on the right side of the movable mold, and the upper and lower side walls of the mounting groove are both opened with T-shaped limit grooves, a cooling water reflux groove is opened inside the movable mold, and a hollow mold core is fixedly arranged on the right side of the movable mold. Compared with the prior art, the present application wraps the multi-color pen barrel that is first injection molded by a multi-color pen barrel protective component, so that dust cannot adhere to the surface of the multi-color pen barrel, avoiding the adhesion of different color raw materials caused by dust adhesion, thereby avoiding cracks at the connection of different color raw materials, and the first injection molded pen barrel is kept warm by heating after the two wedge blocks are in contact, avoiding the temperature drop during the movement of the pen barrel, resulting in a decrease in the bonding effect, so that the bonding between the different color raw materials of the multi-color pen barrel is tighter.

The utility model discloses a multilayer composite food packaging film, which relates to the technical field of packaging films and comprises a packaging film main body, a protective layer, a barrier layer, an adding layer and a contact layer are respectively arranged in the packaging film main body, the protective layer is arranged at the top of the barrier layer, the barrier layer is arranged at the top of the adding layer, and the adding layer is arranged at the top of the contact layer. An adhesive is arranged between every two of the protective layer, the barrier layer, the adding layer and the contact layer, and the interior of the protective layer is made of a high-density polyethylene material. According to the multi-layer composite food packaging film disclosed by the utility model, a plurality of functional layers are arranged in the packaging film main body and comprise the protective layer, the barrier layer, the adding layer and the contact layer, and the layers are tightly adhered by adopting the water-based adhesive; by adopting a multi-layer composite structure, multiple functions of physical protection, gas and moisture barrier, antibacterial protection, food safety and the like are realized, and the storage safety and freshness of food are effectively improved.

The utility model relates to a water stop strip mounting structure between new concrete and old concrete of a gate culvert. The device is installed between an old concrete structure and a new concrete structure. Comprising a cutting groove formed in the middle of the vertical face of the old concrete structure, a water-swelling water stop belt is installed in the cutting groove, a water stop piece is arranged in the cutting groove, the inner end edge of the water stop piece makes contact with the water-swelling water stop belt, a left pressing plate and a right pressing plate are installed on the vertical face of the old concrete structure, and the two pressing plates clamp the water stop piece. The interior of the cutting groove is grouted to form a grouting body, an epoxy mortar layer covering the pressing plate is arranged on the vertical face of the old concrete structure, a polyethylene high-pressure closed-pore plate is arranged on the outer side of the epoxy mortar layer, and the outer side edge of the polyethylene high-pressure closed-pore plate makes contact with the water stop piece. The part, located outside, of the water stop strip is integrally poured and formed in the new concrete structure, and the polyethylene high-pressure closed-pore plate is located between the epoxy mortar layer and the vertical face of the new concrete structure. The installation structure overcomes the defects that a water stop piece is not firmly installed, the water stop effect is poor, and construction is inconvenient in an existing installation structure.

The utility model relates to sealing equipment technical field, and disclose a kind of glove vacuum packaging temperature control sealing machine, including: stand, the top of the stand is fixedly installed with fixed plate.This kind of glove vacuum packaging temperature control sealing machine, while completing vacuum extraction and exiting packaging bag in suction pipe, automatically drive two heat sealing plates to realize sealing by moving towards each other, optimize the operation of vacuum extraction and sealing in traditional equipment as coherent action, simplify overall packaging process, reduce mechanical equipment operation link, improve production efficiency, while reducing the complexity of equipment mechanical structure, save design, manufacturing and maintenance cost, and heat sealing plate adopts wave shape design, will increase the contact area of heat sealing plate and packaging bag, make the combination of sealing part more tightly firm, effectively prevent the problems such as air leakage, cracking at sealing, further improve the quality of vacuum packaging, ensure that glove and other products are better protected during storage and transportation.

The invention discloses a micro-deformation high-wear-resistant shock-resistant plasma nitriding method for a titanium alloy transmission part, which belongs to the technical field of titanium alloy material surface treatment, and comprises the working procedures of ultrasonic cleaning, heating cleaning, glow ion cleaning activation, plasma nitriding, furnace cooling and the like. Through a glow discharge plasma process, an N element is bombarded and infiltrated into the surface layer of a Ti alloy matrix in the form of active microparticles. And the adjusting interval of the component proportion of the process gas is 1: 9-3: 7. The plasma nitriding layer prepared through the method does not affect the dimensional precision of the part, meanwhile, the abrasion resistance of the titanium alloy transmission part can be greatly improved, the impact resistance of the titanium alloy transmission part can be remarkably improved, and therefore the service life of the titanium alloy transmission part is greatly prolonged.

The utility model discloses an edge pressing device for hollow glass production, which comprises a device table body, a device frame body, a central pressing plate, a rectangular pressing frame and an adjusting mechanism, the device frame body is arranged above the device table body, the central pressing plate is arranged below the device frame body, the rectangular pressing frame is arranged on the outer side of the central pressing plate, and the adjusting mechanism is arranged on the rectangular pressing frame. A first telescopic driving part is installed at the center position of the top end of the device frame body, second telescopic driving parts are installed at the positions, on the two sides of the first telescopic driving part, of the top end of the device frame body, the adjusting mechanism is arranged on the outer side of the device table body, and the adjusting mechanism comprises a movable frame, a threaded rod, a push rod, a threaded sliding block and a rotary driving part; the threaded rod is installed in the movable frame through a bearing, and the outer wall of the threaded rod is sleeved with the threaded sliding block. The hollow glass centering device is convenient for automatically centering hollow glass, high in adjustment accuracy, labor-saving, convenient, high in edge pressing efficiency and good in effect.

The present invention relates to the field of surfboards, and in particular to a reciprocating surfboard core fiber cloth laminating and bonding device. The technical problem is: after the fiber composite surfboard core is cut, a large number of fiber filaments will appear on the edges around it, which are difficult to bond. At the same time, when bonding the basalt fiber cloth, the resin is difficult to penetrate the basalt fiber cloth, resulting in the quality of the surfboard being affected. The technical solution is: a reciprocating surfboard core fiber cloth laminating and bonding device, a support frame and a scraping unit, etc.; the middle of the two support frames is connected with a scraping unit. The present invention realizes the laminating and laying of the surfboard core fiber cloth, and makes the surfboard and the fiber cloth bond more tightly in a reciprocating manner. At the same time, the fiber filaments that appear on the edge of the surfboard after cutting are pressed and bonded, and the excess resin from the bonding of the surfboard and the fiber cloth is reinforced, so that the fiber filaments and the edge of the surfboard are more firmly bonded to prevent looseness.

The invention relates to polyimide slurry and a polyimide film which can be coated on a glass substrate and amorphous silicon glass used by an integrated passive device, and a preparation method of the polyimide slurry and the polyimide film. The preparation of the polyimide slurry comprises the following steps: mixing dianhydride, aromatic carboxylic acid and diamine in an organic solvent, reacting at room temperature, reacting the obtained polyimide prepolymer solution under a heating temperature condition, cooling, adding the organic solvent again, and fully stirring to obtain the polyimide slurry; wherein diamine comprises a main monomer and an auxiliary monomer, the main monomer is aromatic diamine, and the auxiliary monomer is aromatic diamine containing a trifluoromethyl group; and coating the prepared polyimide slurry on a flat plate, carrying out gradient curing in a nitrogen or argon atmosphere, finally cooling to room temperature, and stripping to obtain the polyimide film. The film prepared by the method has good thermal performance, mechanical performance and smoothness.

The invention discloses a preparation method of a recombinant collagen hydrogel tissue adhesive for suture-free wound healing, which comprises the following steps: 1, dissolving carboxymethyl chitosan and polylysine in deionized water, adjusting the pH value to be neutral, and adding glutamine transaminase to obtain a solution A; 2, dissolving the recombinant collagen and the four-arm-polyethylene glycol-aldehyde group in deionized water to obtain a solution B; and 3, uniformly mixing the solution A and the solution B to obtain the recombinant collagen hydrogel tissue adhesive for suture-free wound healing. According to the invention, the recombinant collagen is taken as a main component, the hydrogel is rapidly formed by utilizing the synergistic effect of various high-molecular polymers, and the hydrogel has the advantages of good adhesion, antibacterial property, promotion of wound collagen deposition, controllable biodegradation and the like, and the prepared dual-network hydrogel tissue adhesive can be injected into a deep wound and has a good application prospect. The suture line and the suturing nail are replaced to be applied to the aspect of wound suturing, and good application prospects are achieved.