106 results about "Foam rubber" patented technology

The invention discloses anti-shrinkage directional conductive supercritical foaming rubber and a preparation method thereof, and relates to the technical field of conductive rubber foam, raw materials comprise a rubber matrix, a modified fiber forming polymer and an auxiliary agent system, and the modified fiber forming polymer is prepared from a fiber forming polymer and a conductive filler. The preparation method comprises the following steps: extruding and granulating the fiber-forming polymer and the conductive filler to obtain modified granules, blending the modified fiber-forming polymer granules and the rubber matrix, carrying out extrusion and traction processes to obtain an in-situ fiber-forming modified rubber material, carrying out directional open milling, adding an auxiliary agent system, carrying out vulcanization molding, and foaming in a supercritical fluid to obtain the rubber foam material. The directional conductive fiber is constructed in the rubber matrix in situ, the rubber foaming material with directional conductivity and shrinkage resistance is prepared, the conductive efficiency is high, the problem that a rubber supercritical foaming material is prone to shrinkage is solved, and the rubber foaming material has the characteristics of heat insulation, light weight, high strength and the like and can be used for buffering and damping, heat insulation, electromagnetic shielding, flexible sensing and other scenes.

The invention relates to a head and neck tumor radiotherapy auxiliary supporting and positioning device which comprises a bed body, a movable rack, a base plate, a foaming rubber pad, a thermoplastic positioning film, a protective cover and a positioning mechanism, the movable rack is connected with the bed body in an inserted mode, the base plate is arranged on the movable rack, and the positioning mechanism is arranged at the bottom of the movable rack and comprises a lifting plate, a connecting sleeve, a supporting rod and a spring I; the supporting rod can penetrate through the hole position to support the head in advance, and the fixing assembly can lock the position of the supporting rod. The lifting plate is driven by a screw I to ascend and descend, a step rod is matched with a spring II to lock the position of the step rod, and emergency unlocking can be achieved through a traction rope between a baffle strip and the step rod. The device can realize accurate positioning of the head and the neck, improves the comfort level of a patient, is suitable for auxiliary positioning during radiotherapy of head and neck tumors, and solves the problems that an existing radiotherapy auxiliary device is complex in pre-fixing adjustment, poor in adaptability after a patient is emaciated, difficult to disassemble quickly in an emergency situation and the like.

The utility model discloses a vehicle rubber foam gluing device which comprises a bottom plate, the left side of the top of the bottom plate is fixedly connected with a vertical plate, and the top of the vertical plate is fixedly connected with a box body. The first motor, the rotating rod and the stirring rod are matched to stir colloid so as to prevent the colloid from being solidified, the pressurizing pump can pressurize the interior of the box body, the internal pressure intensity of the box body is larger than the external pressure intensity, so that the colloid is conveniently discharged, and the one-way valve sleeves the surface of the conveying pipe between the pressurizing pump and the box body so as to prevent the colloid from being solidified. The surface of a glue outlet pipe is sleeved with an adjusting valve, the glue outlet speed can be adjusted, the surface of the vehicle rubber foam can be coated with glue through cooperation of a second motor, a first belt wheel, a support, a glue coating roller and a second belt wheel, redundant glue can be scraped and collected through cooperation of a glue scraping plate and a collecting groove, and the glue coating efficiency is improved. Therefore, the colloid can be reused.

To provide a composition for manufacturing a foam layer of a foam rubber roller, and to provide a foam rubber roller having the foam layer.SOLUTION: A composition for manufacturing a foam layer comprises silicone rubber, water, a water-absorbing polymer, and a surfactant, and is characterized in that a weight ratio (X) of the water-absorbing polymer to the silicone rubber and a weight ratio (Y) of the surfactant to the silicone rubber satisfy the following conditions: 2.5 wt.%≤X≤20 wt.%, 0 wt.%<Y<2 wt.%. A foam rubber roller comprises a core material and a foam layer provided on the outer periphery of the core material, and is characterized in that the foam layer contains the silicone rubber, the water-absorbing polymer, and the surfactant, and that the weight ratio (X) of the water-absorbing polymer to the silicone rubber and the weight ratio (Y) of the surfactant to the silicone rubber satisfy the following conditions: 2.5 wt.%≤X≤20 wt.%, 0 wt.%<Y<2 wt.%.SELECTED DRAWING: Figure 1

The invention discloses a foamed rubber asphalt formula determination method. The method comprises the following steps: S1, constructing a molecular model of a foamed rubber asphalt composite system; s2, performing molecular dynamics simulation on the molecular model to obtain a balanced stable structure configuration; s3, based on the stable structure configuration, under the conditions of different rubber mixing amounts, foaming medium mixing amounts and temperatures, calculating the shear modulus, interface adhesion work and fracture energy of the foam rubber asphalt system; and S4, performing multi-objective optimization by taking the shear modulus, the interface adhesion work and the fracture energy as performance indexes, and determining a combination of the temperature, the foaming medium mixing amount and the rubber mixing amount of the optimal formula of the foamed rubber asphalt. According to the method, the combination of the foaming temperature, the foaming medium mixing amount and the rubber mixing amount is determined through molecular modeling and a multi-objective optimization algorithm, and performance prediction and parameter optimization of the foamed rubber asphalt are achieved.

The utility model provides a kind of dustproof liquid seal structure of power distribution cabinet, belong to distribution cabinet field, including distribution cabinet body, dustproof liquid mechanism of dust and liquid invasion is prevented is provided on the distribution cabinet body, the fixed component of fixed equipment is provided in the distribution cabinet body inside.The utility model is provided with dustproof liquid mechanism and foam rubber strip, when using, dust and liquid collecting groove is directly fallen into dust and liquid collecting groove place by door gap when liquid invasion, liquid will be discharged from dust and liquid collecting groove, foam rubber strip can be tightly attached with the counter eaves welded on outer extension door frame, foam rubber strip generates deformation, sealing performance is outstanding, completely prevents dust from entering cabinet body inside, under the condition that liquid flow rate is not enough when dust and liquid collecting groove discharges liquid, liquid can also be prevented from entering distribution box inside.

The invention relates to the technical field of assembly type formworks, in particular to a non-truss standardized assembly type formwork and a construction technology thereof.The non-truss standardized assembly type formwork comprises a plate face body, transverse angle steel and vertical angle steel, the transverse angle steel and the vertical angle steel are installed on the lower portion and the side edge of the plate face body correspondingly, and the rear side of the plate face body is connected with a rib plate; the plate face body and the rib plates located on the rear side of the plate face body are combined into linear plate pieces, a gap between every two adjacent linear plate pieces is filled with foam double-faced adhesive tape, a reinforcing assembly is installed on the rear sides of the linear plate pieces, and special-shaped plate pieces are connected to the outer sides of the linear plate pieces. According to the non-truss and standardized assembly type formwork and the construction technology thereof, through standardization and assembly of non-truss linear plate pieces, standardization and assembly of transverse walings and vertical walings and assembly type connection modes between the transverse walings and the linear plate pieces and between the vertical walings and the linear plate pieces, the specifications and types need to be overall controlled during manufacturing of the new formwork; the standardization degree and the assembly efficiency are improved, and then the turnover performance and the utilization rate of the formwork are improved.

The utility model relates to the technical field of nail making machines, in particular to a feeding structure of a screw processing nail making machine, which comprises a nail making machine, a fixed pulley and a sponge block, one end of the nail making machine is provided with a mounting shell, a wrapping post is mounted in the mounting shell, and a screw blank is wound on the outer side of the wrapping post; one side of the feeding channel is connected with a blank protecting sleeve, the blank protecting sleeve is made of a polyurethane foaming rubber material, a sponge block is arranged at the position, located on the periphery of the wire passing hole, of the inner side of the blank protecting sleeve, and the wire passing hole is formed in the sponge block; the novel feeding structure is provided with a structure for lubricating the screw blank, the friction resistance borne by the screw blank in the machining process can be reduced, and then the feeding effect can be effectively improved.

The invention relates to the related technical field of aluminum alloy door and window frames, and discloses an assembly type energy-saving aluminum alloy door and window frame structure which comprises a main profile frame and an auxiliary profile frame which are attached to each other, and a plurality of independent heat preservation cavities and an energy-saving sealing assembly are formed in the main profile frame in the length direction. The auxiliary profile frame is arranged on the inner side of the main profile frame, an EPDM foaming rubber strip, a silicone rubber sealing rubber strip and a sponge rubber strip are sequentially arranged on the inner side of the main profile frame from inside to outside, and a plurality of corner connecting pieces are symmetrically arranged on the front side and the rear side of the joint of the main profile frame and the auxiliary profile frame. According to the assembly type energy-saving aluminum alloy door and window frame structure, through the energy-saving sealing assembly and the multiple corner connecting pieces arranged at the corners where the main profile frame and the auxiliary profile frame are connected, the heat insulation and energy saving performance, the structural stability and the assembly convenience of an aluminum alloy door and window are improved, meanwhile, durability and functional diversity are considered, the heat insulation effect is good, and the service life of the aluminum alloy door and window is prolonged. Multiple sealing is achieved, and building energy saving is assisted to reach the standard.

The utility model discloses a bubble eliminating device in foam rubber die cutting processing, which comprises a tank body, a plurality of circumferentially arranged supporting rods are arranged at the lower end of the tank body, a feeding pipe is arranged at the upper end of the tank body, a discharging pipe is arranged at the lower end of the tank body, sleeves are arranged at the upper end and the lower end of the tank body in a penetrating manner, and a rotating pipe is slidably connected between the two sleeves in a penetrating manner. A plurality of stirring rods arranged at equal intervals are arranged on the outer wall of the rotating pipe and communicate with the rotating pipe, and a heating mechanism used for heating the rotating pipe and the stirring rods is arranged at the upper end of the tank body. The gear ring rotates to drive the rotating pipe and the stirring rods to rotate, raw materials are stirred, gas is discharged from the raw materials, the connecting plate is connected with the rotating pipe, and the rotating pipe is slidably connected with the two sleeves, so that the rotating pipe drives the stirring rods to vibrate in the tank body, and the raw materials are stirred. Bubbles in the raw materials are shattered through vibration.

The invention involves a triangular prismatic tuned mass damper suitable for large-span or cantilever structures, including a triangular prism box, particle damping units inside the triangular prism box, and a steel mass block. Below the triangular prism box are high-damping springs. The particle damping unit consists of a particle damping cavity, particles of three different sizes, and foam rubber pads. When the structural vibration amplitude is small, the particles dissipate energy by compressing the foam rubber pads and rolling. When the amplitude of structural vibration is large, the energy is dissipated by the collision of particles and the compression of the foam rubber.

The invention provides a method for estimating thermal expansion molding process parameters of a foam sandwich composite material, the foam sandwich composite material and a preparation method of the foam sandwich composite material. The estimation method comprises the following steps: testing an expansion pressure-time relation curve of the expandable foam rubber under the conditions of different temperatures and different expansion rates, and when the maximum value of the expansion pressure exceeds 100 kPa, recording a corresponding expansion rate range and a temperature range; testing a viscosity-curing time relation curve of resin in the prepreg at different temperatures, and recording a corresponding temperature range when the curing time does not exceed 10 minutes and the viscosity is not lower than 100 Pa.s; and taking the overlapped part of the recorded temperature range of the expandable foam rubber and the recorded temperature range of the resin as an estimated temperature range of thermal expansion mold pressing, and taking the recorded expansion rate range as an estimated expansion rate range of a thermal expansion mold pressing process. According to the estimation method, the production process stability of the sandwich composite material is improved.

A front bearing beam structure of a sunlight room comprises a first cross beam and a second cross beam, the side portion of the first cross beam is connected with the side portion of the second cross beam through two heat insulation strips, the second cross beam is located on the right side of the first cross beam side by side, and a rectangular first cavity is defined by the first cross beam, the second cross beam and the two heat insulation strips; in conclusion, the front bearing beam structure mainly bears the overall weight of the sunlight room, the front bearing beam structure is connected with the stand columns and the corners through groove type corner connectors, the overall strength of the sunlight room is guaranteed, the conversion angle between the front bearing beam structure and the main beam ranges from 90 degrees to 150 degrees, the installation flexibility is high, the two steel plates are arranged in the second cavity in a penetrating mode, and installation is convenient. The supporting strength of the first cross beam is improved, the foaming rubber strip is arranged on the circular tube cross beam, and the sealing performance between the circular tube cross beam and the steel structure body is guaranteed.

The tool comprises a bottom plate, a product supporting plate and a pressing plate, the pressing plate is installed on the bottom plate through an elastic mechanism, sliding rails matched with the product supporting plate in a sliding mode are arranged on the portions, on the two sides of the product supporting plate, of the bottom plate, and a drawing opening of the product supporting plate is formed between the front ends of the sliding rails. A baffle of the product supporting plate is arranged on the bottom plate at the rear end of the sliding rail; the product supporting plate is provided with a double-step groove used for containing a product and a foam double-faced adhesive tape, a colloid pressing needle is arranged on the pressing plate right opposite to the double-step groove, and the foam double-faced adhesive tape is attached to the product under the action of the colloid pressing needle. According to the utility model, the product supporting plate with the double-step groove and the sliding rail are arranged, so that the product supporting plate slides back and forth in the vertical direction of the sliding rail, a product and a foam double-sided adhesive tape are convenient to place, the product and the foam double-sided adhesive tape do not move in the laminating process, and the positioning effect is good; and by arranging the pressing plate and the spring mechanism, fitting of the product and the foam double-faced adhesive tape and stripping of the foam double-faced adhesive tape are achieved, and the working efficiency is high.

The invention discloses a liquid rubber foaming product and a preparation method thereof, and belongs to the field of foaming rubber. The liquid rubber foaming product comprises the following raw materials in parts by mass: 100 parts of hydrophilic modified polybutadiene rubber, 3-5 parts of a plasticizer, 0.5-2 parts of a crosslinking aid, 5-8 parts of an acrylamide-acrylic acid copolymer, 3-8 parts of a foaming agent, 1-3 parts of a surfactant and 10-20 parts of filler, wherein a molecular chain of the hydrophilic modified polybutadiene rubber is grafted with a polyethylene glycol chain segment. Through hydrophilic modification, the polybutadiene rubber can directly take water as a dispersion medium, and the use of organic solvents such as benzene or gasoline is avoided in the preparation process of a foamed product, so that the effect of eliminating volatile organic compounds is achieved. The liquid-state rubber foaming agent has good mechanical properties and can cooperate with an acrylamide-acrylic acid copolymer to form a hydrogen bond-covalent bond double-crosslinking network, so that a vulcanization process and a foaming process can be better matched, and a liquid-state rubber foaming product with excellent performance is obtained.

The invention relates to a method for filling a cavity between an R angle and a right angle matching surface, which comprises the following steps: fitting a part with an R angle with a side pressing plate, and enabling the top end of the part with the R angle to be flush with the top end of the side pressing plate so as to form a cavity similar to a triangle; polystyrene foam is cut into a uniform-section cylinder with the same length as the triangular-like cavity; the sectional area of the polystyrene foam is calculated, and the polystyrene foam is cut according to the calculation result so that the polystyrene foam can be matched with the triangle-like cavity; the foaming rubber is stuffed into the similar triangular cavity, and the top pressing plate covers the top ends of the part with the R angle and the side pressing plate; feeding the combined part with the R angle, the side pressing plate, the top pressing plate and the polystyrene foam into a drying oven for curing the polystyrene foam; and the two ends of the cured polystyrene foam are cut, so that the cured polystyrene foam is as long as the triangle-like cavity. According to the invention, twisted strips are not needed, a good filling effect is ensured, the production cost is reduced, the production period is shortened, and the filling efficiency is improved.

The invention relates to the technical field of vehicle-mounted backlight module structures, and discloses an ultrathin vehicle-mounted backlight module structure which comprises a die-casting shell and a display module, a groove body is formed in one side of the die-casting shell, and a step surface is arranged on the inner side of a port of the groove body; the display module comprises a reflecting film, a light guide plate, a diffusion film, a lower intensifying light, an upper intensifying light and a liquid crystal glass cover plate which are sequentially distributed from bottom to top, a middle rubber frame is bonded to the step face and wraps the outer side of the cover plate, and meanwhile the cover plate and the middle rubber frame are fixed through foam rubber. A traditional plastic rear shell is replaced by the die-casting shell, the die-casting shell is made of hard metal materials, the module die-casting piece and the plastic rear shell are combined into a whole, the die-casting piece is integrated, the front face bears the diaphragm, the back face structure is provided with a connecting structure to be connected with a vehicle body, and the die-casting shell guarantees the product strength and improves the overall heat dissipation effect.

The utility model discloses a heat preservation type heating and ventilation pipeline for heating and ventilation engineering, which comprises an inner conveying pipe, a composite heat preservation layer, a vapor barrier layer and an outer protective sleeve which are sequentially and fixedly arranged from inside to outside, the composite heat preservation layer is formed by alternately laminating aerogel felt layers and closed-cell foaming rubber layers, and a connecting flange is fixedly arranged at the end part of the pipeline. Compared with the prior art, the composite heat preservation layer has the advantages that the composite heat preservation layer is formed by alternately stacking the aerogel felt layers and the closed-cell foaming rubber layers, heat loss in the heat energy conveying process is greatly reduced, and the energy utilization efficiency is improved; the vapor barrier layer is of a double-sided barrier structure formed by hot-pressing and compounding an aluminum foil layer and a polyethylene film, water vapor invasion is effectively prevented, the heat preservation layer is prevented from being affected with damp, the outer protective sleeve is provided with a rapid detection opening and a temperature and humidity sensor is arranged in the outer protective sleeve, real-time monitoring of the temperature, humidity and other states in the pipeline is achieved, and potential problems can be found and handled in time.

The utility model relates to the technical field of new energy storage systems, and discloses a high-temperature-resistant adhesive tape for a new energy storage system, which comprises an energy storage assembly and a shell, a plurality of energy storage assemblies are arranged in the shell, a plurality of energy storage battery cells are adjacently arranged in each energy storage assembly, epoxy plates are fixed on the energy storage battery cells at the two ends, and the high-temperature-resistant adhesive tape is double-sided foam rubber with high-performance components; a heat-conducting plate and a heat-insulating plate; the heat insulation plate is arranged between two adjacent energy storage battery cells, the pair of heat conduction plates are respectively arranged between the two energy storage battery cells and the heat insulation plate, and the heat conduction plates are adhered and fixed on the heat insulation plate and the energy storage battery cells through high-temperature-resistant adhesive tapes. Compared with the prior art, the energy storage battery has the advantages that the two adjacent energy storage battery cells and all parts are connected through the high-temperature-resistant adhesive tape, and through strong adhesive force, part of impact or vibration can be absorbed while the structural firmness is kept, the durability and safety of a product are enhanced, and the structural stability of the product is enhanced.

The utility model discloses a kind of anti-deformation aluminium alloy sliding door rear stand columns, including supporting column, the top and bottom of the supporting column are threadedly connected with blocking end cap.Ordinary aluminium alloy material rear stand column section structure simple structure, lack of torsion, bending strengthening structure, will lead to stress concentration, prone to local deformation, and then by installing anti-deformation reinforcing cylinder inside supporting column, and anti-deformation reinforcing cylinder inside is equipped with the anti-deformation buffer layer of material EPDM foamed rubber, and the longitudinal reinforcing rib and transverse reinforcing rib of material aluminium magnesium silicon alloy, when supporting column is impacted by door leaf sliding force, impact force can be dispersed and consumed, improve the anti-deformation strength, prolong service life, in addition, user can use the positioning assembly structure formed by assembly sliding groove and assembly slide, it is convenient to disassemble and recycle maintenance supporting column and anti-deformation reinforcing cylinder.

The utility model discloses a high-leakproofness water-blocking foam rubber for a precise electronic component, which belongs to the technical field of high-leakproofness water-blocking foam rubber, and is characterized in that the high-leakproofness water-blocking foam rubber comprises two fixing frames, a gluing mechanism is arranged between the opposite sides of the two fixing frames, and a first adjusting frame and an adjusting mechanism are arranged on the surface of the gluing mechanism; the glue pasting mechanism comprises a cotton glue body, two pieces of dustproof glue, gap cotton glue, a glue blocking pad, a plurality of notches and pressing cotton, and the problems that due to the fact that the viscosity of existing part of foam glue in the initial pasting stage is not high enough, electronic components can be displaced in the initial installation or use stage, the sealing effect is affected, the foam glue is difficult to completely fit, and the sealing effect is affected are solved. The problems that bubbles or gaps are prone to being generated, the sealing performance is reduced, foam rubber is usually soft and large in viscidity, the foam rubber is prone to being adhered to a mounting tool or fingers of an operator in the mounting process, positioning is inaccurate, and the mounting efficiency and the sealing effect are affected are solved.

The utility model discloses an oil-resistant foaming end cover type filter element which comprises a barrel-shaped filter layer, the barrel-shaped filter layer is provided with a central hole, two axial ends of the barrel-shaped filter layer are respectively connected with an upper end cover and a lower end cover, the upper end cover and the lower end cover are foaming rubber sheets, an upper rubber sheet gasket is embedded in the center of the upper surface of the upper end cover, and a lower rubber sheet gasket is embedded in the center of the lower surface of the barrel-shaped filter layer. A lower film gasket is embedded in the center of the lower surface of the lower end cover. The utility model further provides a corresponding foaming mold which comprises a middle lower mold part and a top mold part and is used for producing the oil-resistant foaming end cover type filter element. The film gasket can reduce the internal stress of the film caused by temperature change, reduce the probability of cracking of the end cover due to material shrinkage in the cooling process after heating, improve the yield in the manufacturing process, and provide important support for light weight of the filter element. The foaming mold is simple in structure, and the middle lower mold part and the top mold part are divided, so that combination and disassembly are convenient, and foaming production is facilitated.

The utility model discloses a modular efficient heat tracing pipe which comprises a pipe fitting and a heat tracing pipe body, a heat medium is arranged in the heat tracing pipe body, an attaching plate matched with the pipe fitting is fixedly installed between the two sides of an inner cavity of the heat tracing pipe body, and a heat preservation layer is arranged on the surface of the pipe fitting. The surface of the heat preservation layer is provided with an installation opening matched with the attaching plate. The heat tracing pipe relates to the technical field of heat tracing pipes. According to the modular efficient heat tracing pipe, heat in the heat medium is transmitted to the attaching plate, the attaching plate heats the pipe fitting, the heat tracing pipe can well reduce the gap between the heat tracing pipe and the pipe fitting, the heat transfer mode is mainly heat conduction, the heat transfer area is large, the heat transfer efficiency is high, the pipe fitting is wrapped with the heat preservation layer, and heat preservation can be well conducted on the pipe fitting; the glass wool board layers, the rock wool board layers and the foaming rubber and plastic insulation board layers of the first insulation layer, the second insulation layer and the third insulation layer can effectively insulate heat of the pipe fitting and reduce loss of heat of the pipe fitting.

The present application discloses a double-layer tire and a uniformity detection device thereof, relating to the technical field of tire manufacturing, comprising a double-layer tire, a rotating column and a mounting seat for mounting the double-layer tire, the mounting seat being provided with a sealing clamping member that clamps the upper and lower edges of the double-layer tire, and the mounting seat being provided with an inflation component that acts on the inner side of the double-layer tire, the inflation component being provided with a pressure gauge, and the rotating column being provided with a pressing box and a crimping member. The technical advantages of the present application are: a tire made of a formula of an outer layer of wear-resistant rubber material and an inner layer of foaming rubber material does not need to be assembled with an inner tube or inflated before being used directly, thereby solving the problem of inner tube leakage or blowout affecting use; the inflation component inflates the inside of the double-layer tire, and uses the rotating column to drive the pressing box and the crimping member to rotate around the double-layer tire, during which the crimping member presses the double-layer tire to cause deformation, and uses the pressure gauge to perform real-time detection of the pressure value generated by the deformation during the circumferential rotation, thereby realizing uniformity detection inside the double-layer tire.

The utility model discloses a release film for assisting exhaust of foam rubber, which relates to the technical field of release films and comprises a combined film, the combined film comprises a base layer, a corona layer, a heavy fluorosiloxane release layer and an ultra-light fluorosiloxane release layer are sequentially arranged on the surface of the base layer from inside to outside, a plurality of exhaust channels are arranged on the surface of the combined film, and the exhaust channels are communicated with the corona layer. The exhaust channel is in a long and thin strip shape, the length direction of the exhaust channel is consistent with the length direction of the combined film, the cross section of the exhaust channel is trapezoidal, a guide strip is arranged on the edge of one side of the combined film, and anti-skid protrusions on the guide strip can increase friction force between an operator and the combined film. The combined film can be conveniently and accurately pulled by an operator in the pasting process, foam rubber and a pasted object can be better attached, discharging of bubbles is further promoted, and when pressure is applied by the operator, the foam rubber and the combined film can be conveniently separated by arranging a plurality of grooves.

The invention provides foamed rubber as well as a preparation method and application thereof. The foamed rubber is prepared from the following raw materials in parts by weight: 80-100 parts of brominated butyl rubber, 10-30 parts of liquid rubber, 10-30 parts of carbon black, 3-5 parts of a vulcanization system, 0.5-2 parts of zinc stearate, 2-5 parts of zinc oxide, 1.5-3 parts of a protection system, 2-5 parts of a foaming system and 5-10 parts of a tackifying system. According to the foamed rubber provided by the invention, the high-adhesion foamed rubber is prepared by synergistically compounding the raw materials, the density of the high-adhesion foamed rubber can be stabilized at 0.654-0.718 g / cm < 3 >, the peel strength range of the high-adhesion foamed rubber is 1.1-1.65 N / mm no matter water-based glue or silica gel glue is used in a bonding scene of a metal piece and rubber, the strength of the high-adhesion foamed rubber is improved by about 52%, and the service life of the high-adhesion foamed rubber is prolonged. The elongation at break is 298%-354%, and the use requirement is met.

The utility model discloses an electronic product packing box with a protection component, which comprises a box body and a game machine product, the top of the box body is provided with an upper cover convenient to close and open, the inner bottom of the box body is fitted with a rubber cushion seat, and the top of the rubber cushion seat is provided with a placing shell used for placing the game machine; a placement groove is formed in the top of the placement shell, positioning grooves are formed in the two ends in the placement groove, and foam rubber plates are installed in the centers of the front face and the back face in the placement groove; a game machine product is clamped in the positioning groove, and the front face and the back face of the game machine product abut against the inner side of the foam rubber plate. The box body, the rubber pad seat, the placing shell, the positioning groove, the foam rubber plate and other parts are arranged to be used in cooperation, so that the game machine product stored in the box body can be conveniently buffered and protected, the stability and the protection effect in the transportation process are improved, and then the loss is reduced; and meanwhile, the game machine product can be conveniently positioned and placed.

The utility model discloses a double-light-source background screen with an intelligent display function, and aims to provide the double-light-source background screen with the intelligent display function, which can improve the practicability and the use comfort. The device comprises a bracket, the functional light guide plates are connected with the support in an embedded mode, each functional light guide plate comprises a first side light-emitting lamp strip and a first circuit board, and the first side light-emitting lamp strips emit light through the first circuit boards; the functional color membrane is connected with the support, and the functional color membrane is connected with a one-way membrane; the foam rubber sheet is connected with the functional color film sheet; the pattern color film is arranged above the foam film, and the pattern color film is connected with the foam film; each pattern light guide plate comprises a second side light-emitting lamp strip and a second circuit board, and the second circuit boards are connected with the pattern light guide plates. The beneficial effects of the utility model are that the background screen enables the operation to have flexible directivity, thereby enhancing the practicability of the function operation; the double light sources are personalized, attractive and interesting, and stimulation to eyes is reduced; and the use experience and convenience are improved.

The utility model provides an auxiliary device for seedling cultivation, which relates to the technical field of seedling cultivation and comprises a semicircular supporting ring, a rotating shaft is rotatably connected to the top of the semicircular supporting ring close to the edge of one side, an arc-shaped supporting plate is fixed on the outer surface of the rotating shaft, and the inner side of the arc-shaped supporting plate is opposite to the inner side of the semicircular supporting ring. When a branch is trimmed, a branch supporting rod only needs to be placed in the crescent grooves in the two foaming sponge rubber pads from the opening parts of the semicircular supporting ring and the arc-shaped supporting plate, the treetop part of the branch faces one side of the foaming sponge rubber pads, and then the cutting blade can be driven to cut the branch by pressing the arc-shaped pressing plate; the cut-off branches can be limited between the semicircular supporting ring and the arc-shaped supporting plate under the mutual extrusion of the two foaming sponge rubber pads, the cut branches are prevented from falling off, and meanwhile people can conveniently take out the cut-off branches with hands to be collected.

The application provides an engineering machinery intelligent operation display platform, which comprises an upper cover, a lower cover, a key panel, a key circuit board and a display installed on the upper cover; the application adopts a light guide cavity structure to realize no light stringing, adopts an external USB interface to realize intelligent upgrading and charging functions; the key panel, the metal installation plate and the press-in stud are assembled with the upper cover, are connected through internal screws, realize a screw-free appearance, and the installation plate and the upper cover are tightly pressed through a polyurethane foam rubber strip to realize a high protection level; a direction knob, a speed knob and a handle operation are installed on the operation platform, and the state can be displayed through the intelligent display; the display protection cover can be flipped at any angle through a damping gasket, and the protection cover and the upper cover are opened and closed through a cylindrical buckle.