31results about How to "Meet bonding needs" patented technology

The present invention relates to a bonding fixture for a micro-luminescent device and a bonding method thereof. It is mainly composed of several porous plates, and each porous plate is provided with perforations to accommodate thimbles that are set according to the separation points of the micro-luminescent device to be bonded. , the two ends of the thimble protrude out of the jig, which is at the end of the micro-luminescent device to be bonded, which is the contact end corresponding to the point to be separated of the micro-luminescent device to be bonded, and at the end of the needle bed, it is the spring with the needle bed. At the contact end of the needle contact, each thimble has an appropriate slope according to the point to be separated. The perforated outer edge of the perforated plate at the end of the needle bed has a positioning hole for accommodating the end of the thimble, and the depth of the positioning hole is determined according to the slope of the thimble accommodated. Make sure that the thimbles at the end of the micro-luminescence device to be bonded have the same needle length, which has the effect of improving the stability of the bonding fixture and avoiding the unevenness of the bonding arrangement of the micro-luminescence device.

The invention relates to a controllable tension film pulling device, which is characterized in that the device includes a film pulling module, a tension sensor and a telescopic module, wherein the film pulling module is used to clamp and fix a film; the telescopic module includes a screw, A nut and a fixed block, the screw rod passes through the fixed block and can move axially forward and backward relative to the fixed block, the screw rod is fixedly connected with the tension sensor on one side of the fixed block, and the screw rod is in the The other side of the fixed block is threadedly connected with the nut; the tension sensor is connected with the film pulling module. The invention can conveniently realize the tension control of the film, and can further apply multiple sets of film pulling combinations in different directions of the film, so that the tension of the film is uniform.

The invention relates to a preparation method of acrylamide-containing polymer emulsion. The preparation method comprises the steps of adding toluene, ethyl acetate and chlorinated polypropylene to a reaction kettle, stirring the materials, and controlling the temperature to be 60-80 DEG C; adding methyl methacrylate, an acrylic monomer and an acrylamide monomer; after heating to 85-95 DEG C, adding a vinyl acetate solution of benzoyl peroxide, and carrying out polymerization for 3-5 hours; carrying out reduced pressure distillation at 50-60 DEG C to remove 50-80% of solvents, then adding a neutralizing agent until the PH value of the system is 6.5-8.5, and carrying out salt forming reaction for 0.5-1 hour; gradually adding deionized water at 50-60 DEG C under high speed stirring, finally adding polyvinylpyrrolidone and stirring the materials, thus obtaining the acrylamide-containing polymer emulsion. The acrylamide-containing polymer emulsion prepared by the method has obvious bonding acceleration effects on EVA (ethylene-vinyl acetate copolymer) materials, and can meet the bonding requirements of hard EVA materials.

The invention provides a normal-temperature solidification instant-high-temperature-resistant high-flexibility epoxy adhesive and a preparing method thereof and relates to an epoxy adhesive and a preparing method thereof. The epoxy adhesive and the preparing method thereof aim at solving the problems that existing normal-temperature solidification epoxy resin is poor in flexibility and cannot resist instant high temperatures. The normal-temperature solidification instant-high-temperature-resistant high-flexibility epoxy adhesive is prepared from, by weight, 50-100 parts of polyether modified epoxide resin, 60-120 parts of flexible curing agent, 10-30 parts of phenolic resin, 1-3 parts of accelerant, 1-3 parts of coupling agent. The preparing method comprises the steps that firstly, materials are weighed; secondly, the polyether modified epoxide resin and the phenolic resin are mixed and then ground through a three-roller grinding machine, then the flexible curing agent, the accelerant and the coupling agent are added and evenly mixed, and the normal-temperature solidification instant-high-temperature-resistant high-flexibility epoxy adhesive is obtained. The normal-temperature solidification instant-high-temperature-resistant high-flexibility epoxy adhesive can be obtained.

The invention discloses sliding block bonding process equipment and a bonding method. The equipment comprises an arch clam, a first ejection block, a second ejection block, a third ejection block, a fourth ejection block, a positioning pin, a movable handle compression screw and a movable handle; a threaded hole is formed in one end of the arch clamp, and the movable handle compression screw is installed on the arch clamp through the threaded hole; a groove is formed in the other end of the arch clamp, the second ejection block is installed in the groove of the arch clamp and is welded and formed; threads and a mounting hole are formed in the movable handle compression screw, and the fourth ejection block is connected to the movable handle compression screw through the threads; the movablehandle penetrates through the mounting hole to be connected to the movable handle compression screw; the first ejection block and the second ejection block are located and connected through the positioning pin; and the third ejection block is welded to the other end of the arch clamp and is arranged in parallel with the fourth ejection block. According to the bonding process equipment and the bonding method, the equipment is located positioned through the arch clamp and the ejection blocks, and the movable handle compression screw is used for applying force and clamping, so that a product isbonded and fixedly formed with a product copper groove.

The invention discloses polyurethane, a composition with same and a method for preparing the polyurethane. The polyurethane is a random copolymer with repeat units shown as a formula I and a formula II. An R<1> in the formulas selectively represents C<2>-C<5> diol, an R<2> selectively represents R<3>CH<2>-CHR<3>-CH<2>R<3>, and the R<3> represents OCO (CH<2>) <7>CH=CHCH<2>CHOH (CH<2>) <5> CH<3>; an n<1> is selectively 1 or 2, an n<2> is selectively an integer ranging from 0 to 3, and the mass percentages of the repeat units, which are shown in the formula I, in the polyurethane range from 4% to 12%; the mass percentages of the repeat units, which are shown in the formula II, in the polyurethane range from 2% to 10%. The polyurethane, the composition and the method have the advantages that the polyurethane is doubly modified by the aid of polyester polyol modified by castor oil and bisphenol A type epoxy resin in polyurethane preparation procedures, accordingly, the cohesion strength, the water resistance and the heat resistance of adhesive can be obviously improved, and base material surface adhesive force of the adhesive can be obviously increased.

The invention provides an adhesive prepared based on amino siloxane, and a preparation and application method thereof. The amino siloxane is subjected to two-step reaction to prepare benzoxazine group-containing siloxane. The method has simple and controllable synthesis conditions and high synthesis efficiency; the benzoxazine group-containing siloxane synthesized by the method can be directly used as the adhesive, and has high bonding strength; the benzoxazine group-containing siloxane synthesized by the method can be also used as a base formula, and serves as the adhesive after other fillersare added so as to meet the different needs of various special occasions.

The invention discloses a conveyor belt edge glue bonding system, comprising a support seat, a glue storage box is fixedly connected to the middle end of the bottom of the support seat, and a stirring motor is fixedly installed at the middle end of the left side of the glue storage box. The output shaft of the stirring motor is fixedly connected with the stirring shaft, and the outer surface of the stirring shaft is fixedly connected with the stirring blade, the right end of the bottom of the inner cavity of the glue storage box is fixedly installed with a pump, and the outlet of the pump is flexibly connected with a nozzle. Through the functions of the first support plate, the electric telescopic rod, the second support plate, the upper squeeze roller bracket and the upper squeeze roller, the present invention can meet people's bonding requirements for conveyor belts of different thicknesses, and bring great benefits to people's use. Great convenience, at the same time, through the functions of the scraper, the first reserved slot, the baffle, the filter and the second reserved slot, it can meet the need for repeated use of glue, thereby avoiding the waste of glue and saving production costs. in the interests of the enterprise itself.

The invention provides a foam model bonding machine for lost foam casting. The foam model bonding machine comprises an upper model box and a lower model box, the lower model box is fixed to a worktable, a glue brushing pool is fixed to the worktable, a model box conveying mechanism is connected to the worktable through a bracket, the upper model box is clamped through a box-type fixture and then suspended on the model box conveying mechanism, and the upper model box is driven by themodel box conveying mechanism to move between the upper part of the lower model box and the upper part of thegluebrushing pool. Compared with the prior art, the foam model adhesive machine for lost foam casting has the beneficial effects that overall design is simple, integration of glue brushing, assembling and shaping of a foam model is realized, and the foam model adhesive machine has the advantages of high assembly and bonding accuracy and high speed, the bonding requirements of foam models with different shapes can be met, and the problems of low efficiency, poor quality stability, and uneven glue application in the process of glue brushing as well as the problem ofbonding precision of the upper and lower foam models are solved.