12results about How to "Avoid uneven surfaces" patented technology

The invention provides a porous membrane as well as a preparation method and application thereof. The preparation method of the porous membrane provided by the invention comprises the step of performing laser drilling treatment on a base membrane by adopting a laser light source in an ultraviolet light band to obtain the porous membrane. According to the method, the ultraviolet laser light source which is short in wavelength, high in light source absorptivity of the membrane material and low in heat effect is adopted for punching, and the porous membrane which is small in average aperture, high in surface flatness and high in mechanical strength can be obtained.

The invention relates to the technical field of endoscope lens machining, and discloses endoscope lens finish machining equipment which comprises an operation table, a machining part arranged on the top of the operation table, a synchronous moving part arranged on the machining part and a synchronous transferring part arranged on the top of the operation table. The machining component comprises a movable fixing assembly arranged in an inner cavity of the operation table, a rotary fixing assembly arranged on the movable fixing assembly and a grinding assembly arranged on the top of the operation table. According to the endoscope lens finish machining equipment, through movable arrangement of the two sets of side mounting plates, three sets of endoscope lenses can be clamped and subjected to finish machining at a time, simultaneous machining of the multiple sets of lenses is achieved, the idle time of the equipment after waiting for machining of the single set of lenses is shortened due to simultaneous machining of the multiple sets of lenses, the equipment can operate continuously, and the machining efficiency is improved. Therefore, the production efficiency is improved.

The utility model provides a kind of tubular object manufacturing device, the device of the utility model includes: the first slitting assembly of original strip material is divided into at least one wide strip and at least two narrow strips;The glue assembly of one strip surface of the wide strip or narrow strip is coated with glue;The glue coating surface of each wide strip is bonded with at least two adjacent narrow strips with the way that narrow strip is in the same plane through glue coating surface to be double-layer bonded strip bonding assembly;The second slitting assembly of double-layer bonded strip is divided into double-layer strip along the gap between adjacent narrow strips;Forming assembly is curled into continuous double-layer tubular object with the axis parallel to the conveying direction of double-layer strip.This utility model's device effectively improves tubular object roundness, hardness, reduces raw material consumption, and the two layers of double-layer tubular object are completely consistent, can reduce product difference rate, improve product quality, while multi-channel parallel forming can multiply production efficiency.

The utility model relates to road construction technical field, concretely is a kind of semi-flexible composite pavement construction equipment, including mounting seat, the bottom of mounting seat is rotatably equipped with trowelling mechanism, the outer surface of mounting bracket is fixedly installed with the protective cover for covering trowelling mechanism outside, the rear side of mounting seat top is fixedly installed with handle, the top of mounting seat is fixedly installed with the driving mechanism for controlling trowelling mechanism rotation;Trowelling mechanism includes trowelling disc and the cover plate of fixed installation in trowelling disc top, the inside longitudinal sliding of trowelling disc is equipped with multiple loose components;By setting loose component and guide component, loose component is automatically extended downward when rotating to the front side of guide component with trowelling disc, can carry out mechanical loose to caked material, break hard knot structure, make material particle distribution more uniform;Loose component is retracted when rotating to the rear side of guide component, by trowelling disc is flattened and compacted, avoid the uneven surface caused by caking, improve pavement flatness and compactness.

This utility model relates to the field of valve processing technology, and in particular to a polishing and grinding device for valve cavities. It includes a processing table with a vertical platform fixed to its top rear end. Electric slides are installed on both sides of the top of the processing table and on the front upper side of the vertical platform. A polishing mechanism is installed on the electric slides for polishing and grinding valve cavities. The polishing mechanism includes: a drive assembly, including a mounting base installed on the electric slide, with a transmission mechanism fixed inside the mounting base; and an execution assembly, including a cylindrical seat fixed to the output end of the transmission mechanism. A housing is fixed to the bottom of the cylindrical seat, and three circumferentially distributed grooves are opened at the lower end of the housing. Bushings are slidably installed inside the grooves, and shaft heads are rotatably installed inside the bushings. A grinding head is fixed to the bottom of the shaft head. Through the radial adaptive adjustment function of the grinding head, it can accurately adapt to the internal cavity dimensions of valves of different specifications. Combined with a composite motion mode of revolution and rotation, a uniform and efficient polishing effect is achieved.

The application discloses a vertical air conditioner indoor unit, which comprises a shell, the shell is provided with a fresh air inlet and a fresh air outlet, and a fresh air outlet member is rotatably connected to the fresh air outlet. The fresh air outlet member comprises a first side wall and a second side wall. The first side wall is provided with an air outlet structure configured to allow fresh air to pass through the first side wall to be rectified. The second side wall is a closed structure and is connected to the first side wall along the circumference of the fresh air outlet member. When the fresh air outlet member is rotated to an open state, the first side wall is located at the fresh air outlet to allow the fresh air to be sent out after being rectified by the air outlet structure. When the fresh air outlet member is in a closed state, the second side wall is located at the fresh air outlet to close the fresh air outlet. The application can open or close the fresh air outlet, and can prevent foreign matters from entering the fresh air duct when the fresh air outlet is closed.

This utility model relates to the technical field of grinding devices, specifically disclosing a grinding device for sheet metal processing. It includes a wide-surface grinding mechanism for the sheet metal, a long-side grinding mechanism for the sheet metal on one side of the wide-surface grinding mechanism, and a sheet metal conveying mechanism at the end of the wide-surface grinding mechanism away from the long-side grinding mechanism. The wide-surface grinding mechanism of this design uses adjustable grinding rollers arranged symmetrically. The height of the lifting frame is precisely controlled by a cylinder, ensuring close contact between the grinding rollers and sheets of different thicknesses, guaranteeing uniform grinding pressure distribution. Simultaneously, the high-speed rotation of the grinding rollers driven by dual motors, combined with the continuous feeding of the conveyor belt, allows for fine grinding of the entire wide-surface area in one pass, avoiding the surface unevenness caused by uneven force in traditional manual grinding. For the long-side, a linkage structure between a threaded sleeve and a limiting rod allows the two grinding discs to adaptively adjust their spacing, precisely clamping the edge of the sheet metal and grinding it synchronously.

The invention discloses an MEMS device manufacturing method for improving surface flatness and an MEMS device. The method comprises the following steps: obtaining a basic SOI sheet, and constructing a substrate by sequentially depositing a metal bottom electrode, a piezoelectric material and a metal top electrode; the metal layer is etched by ion beams, the piezoelectric material is etched by a wet method, and accurate patterning is ensured. And then, growing an insulation protection layer, depositing a metal wiring layer after inductively coupled plasma etching, and then finely etching the wiring layer. The top silicon oxide, the top silicon, the buried oxide layer and the bottom silicon oxide are sequentially processed by utilizing reactive ion etching and deep reactive ion etching technologies, so that the fine structure is ensured. And finally, performing deep reactive ion etching on the bottom silicon twice, releasing a mirror surface structure, and completing manufacturing of the high-flatness MEMS device. By designing and accurately etching the support structure on the bottom silicon, the mirror surface structure can be ensured to stably suspend in the release cavity after being released, and the problem of uneven surface caused by uneven support is avoided.

The invention discloses a self-adaptive discretization method for a segmented equal-angle cutter spiral line path, and belongs to the technical field of optical product machining. Firstly, a spiral path of a cutter is planned according to a designed curved surface; initial parameters including a bow height error range and an increment angle are set, and a discrete angle of the first segmented area is obtained; adding the discrete angle of the current segmented area to the increment angle to obtain a discrete angle of a next segmented area; the bow height error is updated based on the discrete angle of the next segmented area, and the radius value of the next segmented area is obtained by adopting the dichotomy with the bow height error range as the constraint; and finally, iteratively acquiring a discrete angle and a radius value of each segmented region by segmented regions, and discretizing the spiral path by using the discrete angle and the radius value of each segmented region. Under the constraint of the bow height error range, the discrete angle is dynamically adjusted, and the machining precision of the complex curved surface can be effectively improved.

The invention relates to the technical field of embankment construction, in particular to a concrete paver and a side slope concrete lining method.The concrete paver comprises an embankment body, and the embankment body is provided with an inclined face; a bottom concrete precast slab and an upper concrete precast slab are fixedly arranged on the slope of the embankment body, a paving part is slidably arranged at the top of the embankment body, the slopes are combined to form a triangular circulation area, and the two sides of the precast slabs are fixed through cast-in-place concrete; in order to solve the problem that in the traditional embankment concrete construction process, due to the fact that concrete flows in the drying and shaping process due to an embankment slope, the inclination angle of the slope is changed, the construction method adopts the mode that cast-in-place concrete is combined with a prefabricated slab; the cast-in-place concrete is limited and fixed through the prefabricated plates, so that the cast-in-place concrete is prevented from inclining and flowing, and the accuracy of the inclination angle of the embankment slope is ensured.

According to the technical scheme, the polishing device is characterized by comprising a supporting plate, two mounting grooves are formed in one side of the supporting plate, inner frames are arranged in the mounting grooves, and driving motors are fixedly mounted in the inner frames; during use, the driving motor can be started to drive the polishing abrasive paper to rotate, a shell to be polished is placed between the two rotating polishing abrasive paper to be polished, meanwhile, the spring can contract according to the thickness of the shell, the two polishing abrasive paper is driven to be separated and attached to the surface of the shell, and the double-face uniform polishing effect is achieved; during use, the position of an inner plate can be adjusted by rotating a hand-screwing bolt and through cooperation of a threaded ring, the effect of adjusting the elastic force of a spring can be achieved, adjustment can be conducted according to the thickness of a shell to be ground in actual use, and vibration of the equipment in the grinding process is relieved by arranging a side frame and an anti-vibration pad; and the polishing uniformity of the shell is further improved.

This utility model relates to the field of road and bridge construction technology, and in particular to a road paving device for road and bridge construction. The device includes a vehicle body, a mixing tank fixedly installed on the upper front side of the vehicle body, a discharge mechanism on the lower front side of the vehicle body, a material cylinder rotatably installed at the middle position of the upper end of the vehicle body, a curing film wound onto the material cylinder, and compaction mechanisms on the front and rear sides of the material cylinder. A connecting rod rotatably installs at the end of the vehicle body, and a first roller is rotatably connected to the lower end of the connecting rod. The first roller is driven by a third servo motor mounted on the connecting rod, and its direction of travel is opposite to that of the vehicle body. This application, through the design of mixing, discharge control, and multi-roller operation, achieves a comprehensive improvement in the uniformity, flatness, and curing quality of concrete paving. The mixing system prevents concrete from solidifying, the discharge mechanism precisely controls the amount of material used, and the multiple rollers sequentially complete the paving, film covering, and air bubble elimination, forming a continuous and efficient construction process.