118results about How to "Avoid Bubble Problems" patented technology

The invention relates to the field of copper-clad plate press-fit processing, in particular to a copper-clad plate forming processing device and method.The copper-clad plate forming processing device comprises a supporting table of a hollow structure, a lower layer pressing plate is fixedly connected to the top of the supporting table, and a portal frame stretching across the front side and the rear side of the lower layer pressing plate is fixedly installed at the top of the supporting table; a hydraulic mechanism located above the supporting table is installed at the bottom of the portal frame, and a correction mechanism located on the side face of the lower pressing plate and a multi-stage laminating mechanism located on the top of the lower pressing plate are installed at the bottom of the hydraulic mechanism. According to the invention, the first-stage lamination mechanism and the second-stage lamination mechanism are matched to carry out multi-stage lamination on each layer of stacked copper-clad plates, and the second-stage lamination mechanism is firstly utilized to carry out multi-point pre-compaction on the copper-clad plates, so that air among the layers can be discharged from gaps among compaction points; and then the primary laminating mechanism performs high-temperature heating lamination on the copper-clad plate, so that bubbles are prevented from appearing in the copper-clad plate, and the firmness and quality of lamination molding of the copper-clad plate are improved.

The invention relates to the technical field of welding devices, in particular to an aluminum alloy door and window welding machine which comprises a mounting support, an air cylinder is mounted at the upper end of the mounting support, an output shaft of the air cylinder penetrates through the mounting support, and a welding mechanism is mounted on the output shaft of the air cylinder and comprises a first mounting plate fixedly connected with the output shaft of the air cylinder. An exhaust mechanism is mounted on the other side of the first mounting plate, four sets of first electric telescopic rods are mounted on the inner side of the mounting support, clamping mechanisms are mounted on output shafts of the first electric telescopic rods, and welding seams between arc-shaped window frames can be welded through mutual cooperation of second electric telescopic rods and first welding heads; and welding can be conducted on inner side welding seams of the assembling grooves, welding is more comprehensive, connection between the arc-shaped window frames is more stable, through mutual cooperation of a fourth gear and a third electric telescopic rod, comprehensive cleaning is conducted on the peripheries of the welding seams, cracks and bubbles during welding are avoided, and the welding seams are firmer.

The invention discloses a multilayer circuit board preparation method and system based on via hole filling optimization and a multilayer circuit board, and relates to the technical field of circuit board preparation, and the method comprises the steps: obtaining the size of a via hole, calculating the depth-to-width ratio, constructing a viscosity gradient function, taking a via hole filling quality evaluation index as a first optimization target, and solving an optimal ratio; designing a vacuum degree control strategy; the current capillary pressure is obtained, differential pressure driving force is calculated according to the current through hole gas pressure intensity, the time needed for filling and the preset ultrasonic vibration duration are calculated in combination with the through hole diameter, the hole depth and the viscosity gradient function, and ultrasonic auxiliary filling is carried out while through hole filling is carried out; filling the via hole, and controlling the vacuum degree according to the vacuum degree adjusting curve; and the real-time filling rate and the cavity volume are obtained, a second target function is constructed with the difference between the minimum target filling rate and the actual filling rate and the filling cost as a second optimization target, and the optimal filling step number and the optimal single injection material volume are solved.

The present invention relates to a weather-resistant and anti-aging polyethylene pipeline and a preparation method thereof, and belongs to the technical field of polymer materials. The pipeline adopts high-density polyethylene resin, linear low-density polyethylene resin, polyimide resin powder, nano silicon dioxide, nano hexagonal boron nitride, polybenzimidazole fiber, carnosic acid, zinc glycyrrhetinate, antioxidant 1010, hindered amine light stabilizer, polydimethylsiloxane titanate cross-linked polymer, 3-methacryloxypropyl triethoxysilane as raw materials; wherein, polyimide resin powder, carnosic acid and zinc glycyrrhetinate are uniformly mixed, and then modified at 300°C to 350°C for 30min to 60min to obtain a modified product, which can better improve the weather resistance and aging resistance of the pipeline. Each component is compatible with each other, and a special modified preparation method is adopted to better play the synergistic effect of the components, and greatly improve the weather resistance and aging resistance of the polyethylene pipeline.

The invention relates to the technical field of reinforcing steel bar node reinforcement, in particular to a modular reinforcing steel bar node reinforcement method, which comprises the following steps: S1, carrying out field investigation and node analysis, recording the conditions of the existing node, including the diameter, spacing and corrosion degree of a reinforcing steel bar, carrying out accurate measurement by using a laser scanner, and simulating the stress state of the node by using ANSYS or SAP2000; determining positions and degrees of nodes needing to be reinforced; s2, standardized modularized steel bar assemblies are designed and machined, the steel bar materials are HRB500, the specifications are 12 mm, 16 mm and 20 mm, the module width is 300 mm, the length is 500 mm, standardized connectors are connected through bolts or quick connecting plugs, the size error is controlled to be + / -1 mm, epoxy coating or hot galvanizing is adopted for rust prevention treatment, and the coating thickness is larger than or equal to 100 micrometers; s3, a node area needing to be reinforced is cleaned, a surface rusted and loosened concrete layer is removed, and a structural layer is exposed; the modularized steel bar assemblies and the standardized construction process are adopted, the construction efficiency is improved, and the site construction period and the labor cost are reduced.

The invention discloses an enameled round aluminum wire production line suitable for an energy storage inverter, and belongs to the technical field of enameled round aluminum wire production.The enameled round aluminum wire production line suitable for the energy storage inverter comprises a paint box and a baking oven, and the two sides of the top of the paint box are fixedly connected with annular blowing mechanisms; and one side of one annular air blowing mechanism is fixedly connected with a baking box, and the interior of the paint box is fixedly connected with a splashing and coating mechanism. By adopting the splashing coating mechanism and the annular air blowing mechanism, the coating process can be continuously carried out in the linear movement process of the aluminum wire, it is ensured that the aluminum wire on a production line obtains a continuous and stable coating, frequent pause or adjustment is not needed, the overall production efficiency is improved, and through uniform blowing of annular air flow, the production efficiency is improved. The paint can be prevented from being accumulated too thick or non-uniformly at some positions, and the uniformity of the coating is ensured.

The invention discloses a double transition metal / chitosan-based carbon aerogel composite material and a preparation method and application thereof.The method comprises the steps that a nitrogen source and transition metal salt are added into a hydrochloric acid solution of chitosan, stirred, dissolved and evenly dispersed to prepare a mixed solution, the mixed solution is subjected to freeze drying, and the double transition metal / chitosan-based carbon aerogel composite material is obtained. Chitosan aerogel containing transition metal and a nitrogen source is prepared; the transition metal salt is any two of ferric salt, cobalt salt and nickel salt; the chitosan aerogel containing the transition metal and the nitrogen source is placed in a methanol solution of 2-methylimidazole, after vibration treatment and drying, the chitosan aerogel is placed in a nitrogen atmosphere to be subjected to heat treatment, and the double-transition-metal / chitosan-based carbon aerogel composite material is prepared. The preparation method is simple and reasonable in design, the prepared material has good specific surface area and porosity, the formed metal-nitrogen double active center effectively improves the adsorption performance of the material, and the material has good catalytic performance.

The invention discloses an underwater connector oil charging device and method based on cock sealing, and the oil charging device comprises a socket end oil charging device for charging oil to a connector socket end and a plug end oil charging device for charging oil to a connector plug end. The socket end oil charging device can be connected with the connector socket end and enables the two first oil charging passages to be communicated with the sealed accommodating cavity of the connector socket end, so that the connector socket end can be charged with oil through the first oil charging passages, and oil charging can be realized only by installing the connector socket end oil charging device and the socket end in place and opening an oil charging pump; the plug end oil charging device can be connected with the connector plug end and enables the two second oil charging passages to be communicated with the sealed cavity of the connector plug end, so that the connector plug end can be charged with oil through the second oil charging passages, and oil charging can be performed only by installing the connector plug end oil charging device and the plug end in place and opening an oil charging pump. The oil filling operation is simple, the oil filling efficiency is improved, the oil filling amount can be ensured, and bubbles are avoided.

The present invention discloses a flexible rolling device suitable for a square-shell lithium battery coating machine. The flexible rolling device of the square-shell lithium battery coating machine of the present invention has concave-shaped covers at both ends of the roller, a layer of elastic lining is wrapped on the surface of the rigid roller, the lining is flush with the concave-shaped cover, a layer of modified nylon mesh is stretched between the covers at both ends, and a layer of silicone foam layer is coated on the outer layer of the nylon mesh. Through the structural form of the flexible roller itself, the battery shell and the flexible roller are closely fitted, and the force is evenly applied, so that the flexible silicone foam layer can be closely fitted on the coated battery, fully squeezing the blue film and the battery aluminum shell, and the gas between the two is rolled out, and finally the battery coating is free of bubbles and wrinkles.

The invention discloses a high-strength concrete pole production process, and relates to the technical field of concrete pole production, and the high-strength concrete pole production process comprises the following steps: S1, uniformly mixing prepared cement, aggregate and a mixed material according to a certain proportion; s2, steel bars are cut, bent and bound according to a design drawing, and a steel reinforcement cage meeting the requirements is manufactured and placed in a mold; according to the high-strength concrete pole production process, the power piece drives the movable rod arranged at the output end of the power piece to move, the adjusting rod is rotationally installed on the outer surface of the movable rod, and the end of the adjusting rod is rotationally connected with the lining of the arc-shaped plate, so that when the movable rod moves, the arc-shaped plate can be adjusted; and the arc-shaped plates can be pushed to expand outwards or contract inwards in cooperation with the adjusting rods. And after the inner wall of the reinforcement cage is attached to the arc-shaped plates, the movable rods are matched with the adjusting rods to drive the arc-shaped plates to move outwards, and then the reinforcement cage is pushed to be attached to the inner wall of the lantern ring, so that fixation of the reinforcement cage is further enhanced.

The invention discloses a bending-resistant insulating hot-pressed film for a liquid cooling plate and a preparation method of the bending-resistant insulating hot-pressed film. The insulating hot-pressed film comprises a first adhesive layer, an insulating base film layer, a second adhesive layer and a hot melt adhesive layer which are sequentially stacked. According to the insulating hot-pressing film provided by the invention, the adhesive layer is formed through double-sided coating, so that the hot melt adhesive layer and the insulating film are more firmly adhered together, and the adhesive force of the hot melt adhesive and the insulating film can be improved when the liquid cooling plate is wrapped in an overlapping manner; the hot melt adhesive layer is an adhesive layer modified by a formula, so that the bonding force between the hot melt adhesive layer and the liquid cooling plate can be greatly enhanced, the hot melt adhesive layer has excellent high temperature resistance, and the hot melt adhesive layer can still have very high bonding force with the liquid cooling plate after an aging test; the extrusion and drawing deformation force on the adhesive film when the liquid cooling plate is bent and deformed can be resisted by improving the bonding force of the hot melt adhesive and matching and combining the bending-resistant base material, so that layering and bubbles are avoided.

The utility model discloses a roller type film pasting device which comprises a positioning box body, and a containing groove and a rolling shaft assembly arranged on the positioning box body in a sliding mode are arranged on the positioning box body. Wherein the positioning box body is internally provided with an elastic cushion block which enables the rolling shaft assembly to be transited from the positioning box body to the electronic equipment screen in the placing groove, and the elastic cushion block is arranged in a lifting mode; the elastic cushion block is arranged on the positioning box body, one end of the elastic cushion block is integrally connected to the positioning box body, the elastic cushion block with certain elasticity is manufactured, the elastic cushion block can generate upward reset force when bearing downward pressing force in the film pasting process, the elastic cushion block is matched with the rolling shaft assembly, and when the electronic equipment is subjected to film pasting, the elastic cushion block is not prone to falling off. The rolling shaft assembly slides, so that the protective film in the film pasting assembly is more tightly attached to the screen of the electronic equipment, and white edges and bubbles are effectively prevented.

The utility model relates to the technical field of injection molds, and discloses a large complex plastic product sectional type injection mold which comprises a base, a lower mold is fixedly connected to the middle of the upper end of the base, a water tank is arranged at the lower end in the lower mold, and a refrigerator is arranged on the end face of one side of the water tank. A heat absorbing plate is arranged on the outer side of the upper end in the lower die, and heat pipes are evenly arranged at the lower end in the heat absorbing plate at intervals. When the mold is used, the arranged servo motor drives the spiral blades at the four corners to rotate, plastic can be uniformly conveyed into the injection molding cavity, full filling is ensured, bubbles or cavities are avoided, the quality and appearance of products are improved, meanwhile, the filling speed in the injection molding process can be increased, and the production efficiency is improved. The production efficiency is improved, the period is shortened, the yield is increased, stress and deformation in the plastic filling process are reduced, process defects are reduced, and the product quality stability is improved.

The invention belongs to the field of engines, and particularly relates to an underwater gas-liquid two-phase ramjet engine based on phase change and a working method thereof.The underwater gas-liquid two-phase ramjet engine based on phase change comprises a liquid nitrogen injector, a diffusion cavity and a spraying cavity, the spraying cavity is of a gradually-shrunk structure, one end of an inlet of the spraying cavity communicates with the diffusion cavity, and the sectional area of the inlet of the spraying cavity is smaller than that of the diffusion cavity; a water inlet is formed in the diffusion cavity; the liquid nitrogen injector is used for injecting liquid nitrogen into the spraying cavity, and the range of the mass ratio of water entering from the water inlet to the liquid nitrogen injected by the liquid nitrogen injector is 1000-300000. The underwater gas-liquid two-phase ramjet engine based on phase change is a novel thrust driving mode based on phase change, and has the characteristics of high specific impulse, low energy consumption, cost saving and environmental protection.

The utility model belongs to the technical field of cable production, and discloses a labeling device for pasting a cable label, which comprises a rack assembly for supporting and stripping the label to extend outwards, and a rolling assembly arranged in the middle of the rack assembly and used for elastically clamping and rolling the label to paste the cable, a discharging assembly used for gathering the cables to sequentially and horizontally fall to be labeled is arranged above the rolling assembly. The rolling assembly comprises a fixed pressing roller and a movable pressing roller; the discharging assembly comprises a discharging frame, a discharging hopper is arranged at the top of the discharging frame, the discharging frame and the discharging hopper are both of a two-half type, a cable passing channel is formed in the middle of the discharging frame, a material distributing mechanism used for separating single discharging of the cables is arranged on one side of the discharging frame, and a pulling mechanism used for pulling the cables to fall and be labeled is arranged below the material distributing mechanism. According to the labeling device for pasting the cable labels, through linkage of the rotary shifting wheel and the pulling wheel, automatic sorting, positioning and conveying of the cables are achieved, manual intervention is reduced, and the labeling speed is increased.

The utility model discloses a 2.5 D laminating mechanism, which is used for laminating 2.5 D glass, and is characterized by comprising a box body, and one end of a pipeline port 41 of the box body is connected with an exhaust fan; the screen plate 2 is connected with the screen frame 1 of the box body, the screen plate 2 and the box body form a closed structure, the driving mechanism is located in the closed structure and connected with the roller 3, the axial direction of the roller 3 is parallel to the short edge of the screen plate 2, and the roller 3 is attached to the side, located on the box body, of the screen plate 2. The driving mechanism can drive the roller 3 to move in the extending direction of the screen 2 and rotate around the axis of the roller 3 at the same time. When the membrane is grabbed, the exhaust fan vacuumizes the interior of the closed structure, so that the membrane is adsorbed on the screen plate 2, the membrane is aligned and contacted with 2.5 D glass to be laminated, and the driving mechanism drives the roller 3 to move around the axis of the roller 3 while moving in the extending direction of the screen plate 2, so that the laminating processing of the 2.5 D glass and the membrane is realized.

The invention provides a wood-plastic-based composite material with 3D textures and a preparation process thereof, belongs to the technical field of 3D wood-plastic material preparation, and solves the technical problems that an existing wood-plastic composite material is single in function, material textures cannot be customized and the like. The structure of the wood-plastic based composite material with the 3D textures sequentially comprises a functional protection layer, an additive printing texture layer and a wood-plastic base material layer from the surface to the core, and interlayer compounding is achieved through surface heating melting and interlayer mutual pressing. The preparation process comprises the following steps: extruding to prepare a wood-plastic base material, shaping, performing 3D texture printing, laminating and treating a finished product. The composite material is prepared through the processes of extrusion preparation of the wood-plastic base material, cooling and shaping, 3D texture printing, conveying and positioning, synchronous film releasing, film relaxation and oscillation, hot air circulation preheating, multi-angle dynamic air pressure film covering, cold air circulation cooling, film cutting and heat sealing and finished product treatment, the preparation process is high in efficiency and low in energy consumption, and the prepared composite material is good in structure effect and good in application prospect. The multifunctional requirement is met, and the finished product is more stable.

The present application relates to the technical field of polymer material recycling, and particularly relates to a battery PP diaphragm recycling and reprocessing device and a preparation method, which comprises a shell, an extrusion screw rod is installed in the shell, and a power assembly is connected to the end of the extrusion screw rod; a feeding hopper is installed on the shell and is close to one side of the power assembly; an air inlet assembly is installed on the lower side of the shell and is communicated with the inside of the shell, and an air outlet hole is arranged on the upper side of the shell; a heating assembly is sleeved on the outside of the shell; a discharging assembly is installed on the end of the shell and is arranged opposite to the power assembly, and a filter screen assembly is installed in the discharging assembly; and a detection assembly is installed on the shell and is used for detecting the temperature and pressure of the material in the shell.

The utility model relates to the technical field of unmanned aerial vehicle battery production, in particular to a slurry batching device for unmanned aerial vehicle battery production. The utility model provides the slurry batching device for unmanned aerial vehicle battery production, which can prevent air from entering the stirring barrel to be mixed with the battery slurry during sampling and prevent the battery slurry from generating bubbles and being oxidized. A slurry batching device for unmanned aerial vehicle battery production comprises a support, a stirring barrel, a barrel cover, a dust pipe, a first motor and the like, the stirring barrel is connected to the upper portion of the support, the barrel cover is connected to the top of the stirring barrel, the dust pipe is arranged on the upper side of the right front portion of the barrel cover, and the first motor is connected to the upper side of the left front portion of the barrel cover. According to the utility model, the baffle block is pulled upwards to insert the sampling tube, then the sampling tube is taken out, and the baffle block is used for closing and plugging, so that air can be prevented from entering the stirring barrel to be mixed with battery slurry during sampling, and the battery slurry is prevented from generating bubbles and being oxidized.

The invention provides a compressor oil injection structure and a compressor oil injection method, and belongs to the technical field of compressor production, the oil injection structure comprises a gun body, an oil injection needle is arranged in the gun body, the oil injection needle can move in the gun body in the axis direction of the oil injection needle, and an oil outlet is formed in one end of the oil injection needle. A vacuumizing opening and an oil filling opening are formed in the gun body, and the vacuumizing opening is externally connected with vacuumizing equipment; when the oil injection needle moves, the oil outlet can be communicated with the vacuumizing opening or the oil injection opening. According to the structure, oil can be injected into the compressor after the compressor is vacuumized, so that the oil injection efficiency of the compressor can be improved, the oil injection phenomenon in the oil injection process is avoided, and a powerful guarantee is provided for efficient production and stable operation of the compressor.

The application discloses an injection molding method for a toy light guide pipe, which can avoid the occurrence of flow lines and bubbles in the toy light guide pipe after injection molding. The technical scheme is as follows: an injection molding method for a toy light guide pipe, which comprises a mold provided with a cavity, and the cavity is provided with a gate through which glue is injected into the cavity, and the glue injection is divided into five stages, i.e., a first glue injection stage, a second glue injection stage, a third glue injection stage, a fourth glue injection stage and a fifth glue injection stage. The glue injection speed of the first glue injection stage is the largest, the glue injection speed of the third glue injection stage is larger than that of the second glue injection stage and the fourth glue injection stage, and the glue injection speed of the fifth glue injection stage is the smallest. The glue injection pressure of the first glue injection stage is smaller than that of the second glue injection stage, and the glue injection pressure of the second glue injection stage is smaller than that of the third glue injection stage. The application belongs to the technical field of injection molding.

The utility model provides a multi-pipeline automatic water feeding, water discharging and air exhausting device which comprises a plurality of water inlet valves connected to a water outlet pipe of a water supply pump in parallel, a plurality of water outlet valves connected to a water return pipe of a water tank in parallel, and pipelines to be tested which are connected with the water inlet valves and the water outlet valves in a one-to-one correspondence mode. One end, connected with the to-be-tested pipeline, of each water inlet valve is communicated with a water feeding and discharging unit, one end, connected with the to-be-tested pipeline, of each water outlet valve is communicated with an exhaust unit, each water feeding and discharging unit is connected to a water feeding / discharging pipeline connected with a water tank in parallel, and each exhaust unit is connected to an exhaust pipeline connected with the water tank in parallel. A water feeding pump used for feeding water to the water feeding and discharging units and a water discharging pump used for discharging water to the water feeding and discharging units are connected to the water feeding / discharging pipeline in parallel. According to the utility model, the verification period of multiple pipelines is saved, the operation time of the water supply pump is shortened, the production cost caused by refrigeration is reduced, and the accuracy of metering is ensured not to be interfered by bubbles in the to-be-tested pipeline.

The utility model discloses a lithium battery enveloping device which comprises a base, an unwinding mechanism, a roller passing mechanism and an enveloping mechanism, and the unwinding mechanism, the roller passing mechanism and the enveloping mechanism are sequentially arranged on the base. The unwinding mechanism is used for unwinding the coating film; the roller passing mechanism is used for guiding the coating film to the film coating mechanism; and the film wrapping mechanism comprises film wrapping seats and smoothing rollers, the two film wrapping seats are arranged on the base, a gap is formed between the two film wrapping seats, and the smoothing rollers capable of rotating are arranged on the opposite sides of the two film wrapping seats. The lithium battery coating device has the advantages that the structure is simple, the operation is convenient, and the coating efficiency and quality of the lithium battery are improved.

The invention relates to a method for replicating a hologram in a photosensitive composite web. The method according to the invention preferably comprises providing a master element comprising a substrate body and at least one master hologram, applying a photosensitive composite web on a surface of the master element, exposing the master element to copy the at least one master hologram into the photosensitive composite web, and separating the exposed composite web from the master element. The method further includes temporarily applying an optical adhesive film between the photosensitive composite web and a surface of the master element. The optical adhesive film enables optical contact between the master element and the photosensitive composite web during exposure. In another aspect, the invention relates to a method of replicating a hologram in a photosensitive composite web using an input coupling element wherein an optical adhesive film is introduced between the composite web and the input coupling element.

The utility model relates to a precast beam casting mould, including base, template subassembly, vibration subassembly and moving subassembly, base has transverse direction, template subassembly includes the first template and the second template that are provided base top and can slide towards the transverse direction, the moving subassembly is provided the second template far away from the first template side, and the vibration subassembly is provided with the vibration subassembly. The second template can be pushed by the moving assembly to move towards the first template so that the template assembly can be closed. According to the utility model, the vibration component can transmit the vibration force to the side edge of the template component, and then the vibration force is transmitted to the concrete material through the side edge of the template component to vibrate and compact the concrete material, so that particles in the concrete are mutually extruded and tightly arranged, and the density and the strength of the concrete are improved; therefore, uniform distribution of the concrete is ensured, gaps and bubbles are avoided, and the quality of the formed and fixed concrete material is ensured.

The utility model provides a reinforcement cage stock bin convenient to observe, relates to the technical field of reinforcement cage pouring, and solves the problems that bubbles contained in cement are difficult to observe in the process of transferring and using the cement, and the generation of the bubbles during retreatment is difficult to guarantee. A cushion block is arranged at the bottom of the stock bin, a grouting pipe is connected to the bottom of the stock bin, a transmission fluted disc is connected to one side of the interior of the cushion block, a rotating fluted disc is arranged on the side wall of the top of the grouting pipe, a lifting pipeline is connected to the bottom of the grouting pipe, and the lifting pipeline ascends and descends along the grouting pipe through rotation of the grouting pipe. The device is further provided with the stock bin, the stock bin is made of transparent materials such as glass, bubbles in cement and the mixing condition can be better observed, meanwhile, the bubbles can be directly mixed and removed on site, and the problem that the bubbles are generated again in the transferring process is solved.

The utility model provides a general type film pasting device, specifically including base, adjusting piece, press roll and traction piece, be equipped with the placing groove of placing electronic equipment on the base, the adjusting piece can be installed in the one end of placing groove in sliding mode and is used for fixing the electronic equipment of different size, and the adjusting piece is equipped with the tail plug locating piece of fixing the electronic equipment charging port. The pressing roller is installed on the traction piece through a rotating shaft, the traction piece is slidably installed on a guide rail at the top of the base, the two ends of the pressing roller are curved surface parts, the diameter is gradually increased from inside to outside, and the pressing roller extrudes the edges of different types of protective films; a positioning column for fixing the membrane group is arranged on the adjusting piece; and a barb for fixing the membrane group is arranged at one end, far away from the adjusting piece, of the base. The film pasting device is simple in structure and convenient to use, is not only suitable for screens of different sizes, but also suitable for protective films such as tempered films, soft films and curved films, the film pasting process is simplified, the user operation difficulty is reduced, and the user experience is improved.

The rolling film pasting equipment comprises a track rod, two storage boxes are installed at the top end of the track rod in a sliding mode, a fixing plate is movably installed in the center of the top end of each storage box, two movable guide rails are arranged in each storage box, and the two movable guide rails are arranged in the track rod. Sliding plates are movably installed at the top ends of the moving guide rails, lifting plates are movably installed at the top ends of the sliding plates, roller fixing tables are fixedly installed on the two sides of the top end of each lifting plate, rollers are rotatably installed between the two roller fixing tables, and the surfaces of the rollers are attached to the surfaces of the bottom ends of the fixing plates. According to the automatic film attaching device, the rollers abut against the surface of a product at the bottom end of the fixing plate to move, then a film on the surface of the product is rolled, automatic attaching of the film of the product is achieved, and scratches, bubbles and wrinkles caused by excessive contact friction of the product and insufficient manual operation methods in the existing manual rolling attaching process are avoided.

The invention provides an interlayer rear windshield and a vehicle. The interlayer rear windshield comprises a glass body, a low-radiation layer, a heating function layer, a first conductive element and a second conductive element. The glass body comprises an outer glass plate, a bonding layer and an inner glass plate which are stacked. The outer glass plate comprises a first surface and a second surface which are oppositely arranged, the inner glass plate comprises a third surface and a fourth surface which are oppositely arranged, and the bonding layer is located between the second surface and the third surface. The low-radiation layer is arranged on the fourth surface. The heating function layer is arranged in the glass body and located between the second surface and the third surface, and the heating function layer is used for generating heat when powered on. The first conductive element and the second conductive element are arranged between the second surface and the third surface, one of the first conductive element and the second conductive element is used for being electrically connected with a positive electrode of an external power supply, the other one is used for being electrically connected with a negative electrode of the external power supply, and the first conductive element and the second conductive element are electrically connected with the heating function layer.

The present invention relates to an imaging sonar and a matching layer potting method. The imaging sonar comprises: an intermediate body, an integrated circuit module, a panel assembly, a backplane assembly and a sealing assembly. The panel assembly comprises a panel covering the front opening of the intermediate body and a plurality of transducers integrated in the panel. The transducer comprises a matching layer, a transducer positioning member and a transducer body. The transducer positioning member is fixed to the transducer mounting hole, and the transducer body is fixed to the transducer positioning member. The matching layer is bonded to the front side of the panel and wraps the transducer positioning member and the transducer body therein. The rear side of the matching layer has a heat dissipation port to expose the rear side of the transducer body. By reserving a heat dissipation port on the rear side of the matching layer, the rear side of the transducer body is connected to the mounting cavity of the intermediate body through the heat dissipation port, so that the transducer can dissipate heat in the form of heat convection such as air or liquid, thereby improving the heat dissipation performance of the integrated circuit.