90results about How to "Will not cause scratches" patented technology

The invention relates to the field of toys for children, in particular to a three-claw manipulator for a doll catcher. The manipulator comprises a cylinder and further comprises a bottom plate, a pushing mechanism, clamping claws and connection rods. The pushing mechanism can be a micro hydraulic cylinder or a micro pneumatic cylinder or a pen type electric push rod or an electromagnetic element. The clamping claws can be rigid elastic clamping claws or air bag type elastic clamping claws. A layer of foaming cotton can be wound around each clamping claw, each clamping claw can be wrapped by a layer of pure cotton soft cloth, and clamping electromagnets can be installed on the clamping claws. The clamping claws can be various combinations of rigid clamping claws, elastic clamping claws and electromagnetic clamping claws. The three-claw manipulator for the doll catcher can be suitable for clamping toys made from one of or various materials such as common stuffing, hard plastic, soft plastic, wood and iron, and can greatly enrich the varieties of toys in the doll catcher.

The invention discloses an automatic pipe cutter. The automatic pipe cutter comprises a machine frame (1), wherein a cutting device (3) for cutting off pipe fittings (2) is arranged on the machine frame (1). The automatic pipe cutter disclosed by the invention is characterized in that a guiding mechanism (4) for lifting the pipe fittings (2) is arranged at the feeding end, which is close to the machine frame (1), of the machine frame (1), and a feeding mechanism (5) which pulls the ends to be cut of the pipe fittings (2) to move in the axial direction to a position to be processed when the cutting device (3) resets is arranged at the discharging end, which is close to the cutting device (3), of the machine frame (1). The automatic pipe cutter provided by the invention can automatically feed the pipe fittings after the pipe fittings are cut off in a disposable manner, so that the automatic continuous cutting-off processing of the pipe fittings is realized.

The invention relates to a CMP (Chemical-Mechanical Polishing) polishing liquid with mixed grinding materials for an alkaline sapphire substrate and a preparation method thereof. The CMP polishing liquid consists of the following components in percentage by weight: 0.5-35% of a main grinding material, 0.015-0.09% of an auxiliary grinding material, 0.005-0.05% of a chelating agent, 0.005-0.05% of a surfactant, 0.01-0.5% of a pH adjustor, and the balance of deionized water, wherein the main grinding material is a nano SiO2 sol and the auxiliary grinding material is an Al2O3 sol. The auxiliary grinding material, the chelating agent, the surfactant and the alkaline pH adjustor are sequentially added into a nanosilicon sol suspension. In the polishing liquid, as the content of the main grinding material SiO2 sol is reduced, the phenomenon that the polishing liquid residue on the surface of the substrate after CMP is relatively severe is reduced to facilitate subsequent cleaning. A less amount of the auxiliary grinding material Al2O3 is added, so that the polishing speed is remarkably increased, and the roughness of the substrate after CMP is reduced.

The invention relates to a ball separating device of a bearing ball separating retainer assembly machine, and is characterized in that the ball separating device comprises a frame and an electric control system; a cylinder is arranged above the frame, a piston rod of the cylinder passes through a hole of a support plate, the front end of the piston rod is provided with a lifting and pulling head, the lower end of a mandrel is provided with a ball separating head, the upper end thereof is provided with an axle cap, a lower die of a locating bearing is arranged on the frame below the mandrel; the ball separating head includes a base which is arranged at the lower end of the mandrel, and a plurality of ball separating pins are sequentially arranged on the base by a sleeve chuck; the outer layer of the ball separating pin is made of metaformaldehyde or nylon, and the center thereof is embedded with a metal strip. By adopting the deadweight of the mandrel and a guide block to realize ball separating, the ball separating device does not cause damage to steel balls and the grooves on inner and outer rings and has high work efficiency. In addition, with the structure, the ball separating pin is not likely to snap, bend or deform during use, thus prolonging the service life of the ball separating pin and causing no scratch to the surfaces of the steel balls.

The invention discloses a non-contact special-shaped surface detection device, which belongs to the technical field of parts detection device design, including a foot, a base, a horizontal scanning stepping motor, a worm, a worm wheel, a longitudinal scanning stepping motor, a pinion and a large gear 1. Laser length measuring instrument. There are three legs connected to the lower end of the base. The worm is fixedly connected to the motor shaft of the horizontal scanning motor. Fixedly connected with the big gear, the non-contact special-shaped surface detection device designed by the present invention can ensure that the whole device is horizontal before measurement, and the horizontal and longitudinal scanning angles are controlled accurately. It is non-contact measurement and will not cause surface tissue damage Being squeezed and scratched has guiding significance for the adjustment of the processing technology of special-shaped parts.

The invention relates to an automatic adhesive tape device. The automatic adhesive tape device comprises a shell, wherein an adhesive tape outlet is arranged on one side of the shell; a cavity for assembling an adhesive tape is formed in the shell; the automatic adhesive tape device further comprises an adhesive tape cutting mechanism and an adhesive tape output mechanism; the adhesive tape cutting mechanism comprises a cutter arranged in the shell and a cutter driving mechanism which drives the cutter to move to cut off the adhesive tape; and the adhesive tape output mechanism is arranged at the adhesive tape outlet and is in contact with the adhesive tape, so that the adhesive tape is output through the adhesive tape outlet. According to the automatic adhesive tape device, the adhesive tape output mechanism is adopted for outputting the adhesive tape; manual pulling is not needed; the adhesive tape is output more accurately; meanwhile, the adhesive tape cutting mechanism is internally arranged; use is convenient; and a safe protection effect is realized for users.

The invention relates to a magnetic adsorption device and a searchlight comprising the magnetic adsorption device. The magnetic adsorption device comprises a magnet, a fixing base and a magnetic switch for enabling/disabling the magnet to produce adsorptive force; the searchlight comprises a lamp cap, a main body, a chassis and at least a magnet arranged on the chassis, at least a part of the magnet is equipped with a magnetic switch for enabling/disabling the magnet to produce adsorptive force. The magnetic switch comprises two magnetic conductors fixed on the fixing base and a rotary member arranged on the magnet for rotating the magnet; a non-closed loop which has circular inner wall with two symmetrical notches is formed by arranging symmetrically the two magnetic conductors at a certain distance; the magnet, being cylindrical, is capable of rotatably being installed on the fixing base and positioned in a cavity formed by the inner wall of the non-closed ring. The invention is capable of disassembling the magnetic adsorption device or the searchlight from a carrier without scratching or deforming the surface of the carrier.

The invention discloses a semi-automatic motor vehicle unloading and lifting device, belonging to motor vehicle unloading and lifting equipment on a coating production line. The semi-automatic motor vehicle unloading and lifting device is designed through optimal combination by adopting the lever principle. The semi-automatic motor vehicle unloading and lifting device comprises a lifting hook, a movable rod, an upper position-limiting block, a guide sleeve, a small lifting frame, a spring, a lower position-limiting block, a connecting lug, a pin shaft, a large support arm, a center shaft, a small support arm, a rubber protective pad, a support foot, a large lifting frame and a screw nut. The semi-automatic motor vehicle unloading and lifting device is applicable to the unloading and the lifting of different motor vehicles, and has the advantages of good bearing load, simplicity in manufacture, convenience and rapidness for unloading and lifting, safe operation and saved labor; the appearance of a vehicle body is not damaged through being scratched by a lifting device, the product quality is ensured, and the production efficiency is also improved.

The present invention relates to a dust collector, in particular to a front-cover opening two-gear spacing structure of a vacuum dust collector, which solves the problem of a dust collecting box and the universalization of a dust collecting bag of the dust collector, and the problem is also that the front cover is easily damaged when screws are fastened in the production and assembling of the dust collector. The collector comprises a main body which is provided with a sucking fan arranged inside; caster wheels are arranged on the two sides of a main body; a sucking nozzle is communicated with the inner part of the main body by a hose and an expansion pipe; an upper-part shell, a lower-part shell, a front cover and a rear cover form the appearance of the main body; a dust collecting part is caved to the inner part of the main body; a fixing clip of the dust collecting bag is blocked on the front edge of the dust collecting part; and the dust collecting bag or the dust collecting box is arranged in the dust collecting part. The dust collector is characterized in that in order to lead the loading and unloading of the dust collecting box and the production and assembling of the dust collecting box to be convenient and not damage the front cover, the front cover and the rear cover of the main body are designed as that a convex shaft of a shaft rack is rotationally connected with an axle hole and the front cover and the rear cover of the main body are provided with a double spacing and a blocking boss of the front-cover opening two-gear spacing structure. The dust collector achieves the universality of the dust collecting device of the dust collector and increases the convenience of product assembling and use and the market competitiveness.

The invention provides a chlorine stop valve which relates to a valve. The chlorine stop valve comprises a valve body, and an inlet passage and an outlet passage at the lower end of the valve body, wherein a valve cover is arranged at the upper end of the valve body; a valve rod penetrates through the valve cover; the upper end of the valve rod is connected with a hand wheel assembly; the lower end of the valve rod is connected with a valve clack assembly; a gland packing and a pressing plate are arranged between the valve rod and the valve cover; a corrugated pipe is arranged at the lower section of the valve rod; one end of the corrugated pipe is welded on the valve cover and the other end thereof is welded on the valve rod; and a valve clack is matched with a valve port sealing surface between the inlet passage and the outlet passage. The chlorine stop valve is characterized in that the valve cover is short; the valve body adopts a long neck design; the total height of the short valve cover is less than the maximum outside diameter of the valve cover; and the vertical distance from an upper plane of a middle flange of the long neck valve body to the highest point of a side flange of the valve body exceeds 1.5 times the diameter of a flow passage. The chlorine stop valve has the advantages that the chlorine stop valve is self-cleaning, long in service life, higher in overall safety, and convenient to dismount, maintain and replace.

The invention relates to a production process of an aluminum alloy liquid tank truck. The process mainly comprises the steps of automatic welding of jointed boards, tank wrapping, tank body ring seamwelding, manufacturing of a sedimentation tank plug, assembling of a steel truck frame and an auxiliary truck frame, steel frame assembling, manufacturing of an end socket and an anti-wave plate and final assembly. The tank wrapping process adopts automatic welding of the jointed boards, the welding speed is high, the welding quality is good, the weld seam is attractive after molding, the problemsof assembling gaps and misalignment of a tank body and the end socket and attaching gaps of partition plates and cylinder plates are solved, and the welded tank body is better in straightness and more attractive in appearance.

The invention discloses a chip ball mounting tool and method based on a whole computer manufacturing process, and relates to the technical field of chip ball mounting. The tool comprises a chip positioning jig used for positioning a chip to be subjected to ball mounting, the chip positioning jig comprises a positioning frame, sliding holes are formed in the two sides of the positioning frame, a supporting table used for placing the chip is arranged in the positioning frame, at least two sliding rods are movably arranged in the positioning frame, and movable grooves, movable cavities and movable holes are sequentially formed in the sliding rods. The chip positioning jig, the height adjusting block and the chip ball mounting jig are arranged, the chip positioning jig is used for clamping and positioning a chip, the height adjusting block is used for adjusting according to the thickness of the chip, and finally, the chip ball mounting jig is used for assisting in solder paste coating and ball mounting operation on the chip, so that the operation mode is simple and rapid. In the process, the chip is not scratched, tin paste coating is uniform and rapid, and the method has a wide application prospect.

The invention discloses a universal type plate placing machine. The universal type plate placing machine comprises a machine frame, a drive mechanism and a conveying turnover mechanism, wherein the drive mechanism and the conveying turnover mechanism are fixed on the machine frame. The conveying turnover mechanism comprises two driven rollers and a drive roller which are fixed on the machine frame, a conveying belt which are connected with the driven roller and the drive roller, and a turnover clamping plate which are detachably connected with the conveying belt. The drive roller is located between the two driven rollers, and a first motor is connected to one end of the drive roller. A plurality of clamping blocks are arranged on the peripheral surface of the conveying belt, and the lengthdirection of the clamping blocks is parallel to the width direction of the conveying belt. Clamping grooves connected with the clamping blocks in a clamping mode are formed in the lower end of the turnover clamping plate, anti-skid structures are arranged on the left and right side walls of the turnover clamping plate separately, and the anti-skid structures are formed by connecting a plurality of anti-skid protruded strips in sequence. The universal type plate placing machine can realize efficient and stable conveying of PCB with different thickness and perform 180 degrees turnover, and canfurther avoid the scratch of PCB surface.

The invention relates to a fixing frame of an electronic device. The fixing frame comprises a fixing seat, a sucker device and a supporting frame, wherein the sucker device is arranged on the fixing seat and comprises at least one sucker used for fixing the electronic device; and the fixing seat can rotate relative to the supporting frame by a proper angle, wherein the rotation movement of the fixing seat can provide required power for absorbing the electronic device.

The invention discloses an automatic and on-line method for weighing and measuring thickness of plate glass. The automatic and on-line method comprises the following steps of arranging a parallel beamweighing sensor between a glass split table support rack and a glass split table; arranging three upper measurement air cylinders, and connecting the three upper measurement air cylinders to an upperdisplacement sensor; arranging three lower measurement air cylinders, and connecting the three lower measurement air cylinders to a lower displacement sensor; controlling a glass split table supportair cylinder to ascend by a glass production line PLC when glass runs at the glass split table so that the glass is raised from a transmission roller; sending acquired weight data to the glass production line PLC by the parallel beam weighing sensor, subtracting weight of the split table from the weight data to obtain glass weight by the glass production line PLC; and controlling the three upper measurement air cylinders to descend and simultaneously controlling the three lower measurement air cylinders to ascend by the glass production line PLC, and performing calculation to obtain glass thickness of a measurement point by the glass production line PLC according to displacement data fed back by a displacement sensor. By the automatic and on-line method, the working efficiency is improved,the labor cost is reduced, and the detection accuracy is improved.

The invention discloses a photovoltaic agricultural science and technology greenhouse with a roof cleaning device. The greenhouse comprises skeletons and supporting pillars, the ten or more skeletonsare distributed at equal intervals, the supporting pillars are arranged among the skeletons, the skeletons are arranged to be of semicircular structures, first spraying nozzles are arranged at the topends inside the skeletons and connected with water pumps through pipelines, the water pumps are connected with an external water source through pipelines, and an installing plates is rotatably connected to the top ends of the supporting pillars. When the photovoltaic agricultural science and technology greenhouse with the roof cleaning device is cleaned, a user only needs to control the work of second electric telescopic rods through a PLC, the spraying nozzles move, the water pumps work, and then water is jetted from the spraying nozzles to clean solar panels; the photovoltaic agricultural science and technology greenhouse with the roof cleaning device is easy to operate, will not scratch the surfaces of the solar panels, and is quite convenient to use for users.

The invention discloses a double-roller hoisting device suitable for a multi-roller rolling mill. The double-roller hoisting device comprises hoisting fasteners (1A-1B), a spacer bar (2) and a lifting rope (3), wherein one hoisting fastener (1A) and one hoisting fastener (1B) form a group of movable fasteners; two groups of movable fasteners form a pair of sling; an inner diameter of a cylinder (12) of each of the hoisting fastener (1A) and the hoisting fastener (1B) is 10-20 percent larger than the diameter of each roller neck of a roller to be hoisted; the hoisting fastener (1A) and the hoisting fastener (1B) are connected with roller necks at two ends of the hoisted roller; the spacer bar (2) is fixedly connected with the hoisting fastener (1A); two ends of the lifting rope (3) are respectively and fixedly connected with the hoisting fastener (1A) and the hoisting fastener (1B); the middle of the lifting rope (3) is connected with a crane hook. The hoisting fasteners with the spacer bar and the hoisting fasteners are used in pairs, and a pair of working rollers can be hoisted for one time, so that the hosting efficiency can be multiplied. The device is simple in structure, flexible to separate, stable to operate and easy and convenient to operate, and the rollers can be safely and efficiently hoisted.

The invention provides a cylindrical cabin pre-compression tensioning heat dissipation structure and a sealed cabin and relates to the technical field of underwater sealed cabins, and aims at solvingthe problems that in the prior art, a heat dissipation plate cannot be in complete contact with a cylinder wall, and the cylinder wall is scratched. According to the characteristics of a cylindrical cabin body, a pre-compression mechanism and a tensioning mechanism are additionally arranged in an internal cabin structural part, and the tensioning mechanism can push out a heat dissipation plate ina radial direction; in the pre-compression mechanism, a wedge-shaped base and a pre-compression rod are installed at the tail end and the head end of the internal cabin structural part respectively, the heat dissipation plate is arranged between the wedge-shaped base and the pre-compression rod, the pre-compression rod can move in the axial direction, and the head end of a pre-compression push rodis connected with the pre-compression rod and can move in the radial direction. The tail end of the pre-pressing push rod is a wedge-shaped head, and the pre-pressing push rod is movably connected with the heat dissipation face of the heat dissipation plate in a pressing mode. When the pre-pressing rod moves towards the wedge-shaped base, the wedge-shaped head inclined face of the pre-pressing push rod can be matched with the wedge-shaped base, and the pre-pressing push rod and the heat dissipation plate can move inwards in the radial direction. The heat dissipation plate can be reasonably arranged to improve the heat dissipation efficiency, and the heat dissipation plate is prevented from scratching the cylinder wall.

The invention discloses a double-station hoisting suction manipulator. The double-station hoisting suction manipulator comprises a rack spanning two parallel stations, a hoisting suction frame arranged on the rack, a hoisting mechanism for driving vacuum suckers to move in the horizontal direction perpendicular to the rack and a walking mechanism for driving the hoisting suction frame to horizontally move along the rack, wherein the multiple vacuum suckers are arranged on the hoisting suction frame, and first position sensors for judging the hoisting heights of the vacuum suckers are arrangedon the hoisting mechanism. Buffer elastic pieces are correspondingly arranged at the two ends of the rack in the horizontal direction. The whole manipulator is easy and reliable to operate, good in stability and the like, the scratches, caused by the manipulator, on the surfaces of plates are avoided.