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128results about How to "Gap stability" patented technology

Novel slit type spray head and spray coating machine head

The invention discloses a novel slit type spray head, which comprises a spray head main body, a constant-pressure gas supply system, a slurry supply control system and a slit type spray nozzle switch control device, wherein an accommodation cavity and a slit type spray nozzle are formed in the spray head main body; the accommodation cavity is communicated with the slit type spray nozzle; the constant-pressure gas supply system is used for providing constant-pressure gas for the accommodating cavity; the slurry supply control system comprises a slurry supply device and a liquid level control system; the liquid level control system is used for controlling the operating condition of the slurry supply device according to the liquid level of slurry in the accommodation cavity to keep the liquid level of the slurry in the accommodation cavity constant; and the slit type spray nozzle switch control device is used for opening or closing the slit type spray nozzle according to signals of a main control device. By the novel slit type spray head, the problems of thick starting heads and stripe existence of the original spray coating machine are solved, and the stability and the consistency of gaps among coated electrodes can be ensured. In addition, the invention has the advantages that the novel slit type spray head is easy to manufacture and has low cost.
Owner:SHENZHEN XINYUREN TECH

Hot press for processing dots on surface of light guide plate

The invention relates to the technical field of plastic product production, and particularly discloses a hot press for processing dots on the surface of a light guide plate. The hot press comprises a rack, a manipulator, a transmission mechanism, a roller set, an output tape, a triaxial mechanism and a transmission supporting frame, wherein a base, a roller supporting frame and a lifting block are arranged in the rack; a hydraulic device is arranged in the roller supporting frame; the bottom of the lifting block is in contact with the top of the hydraulic device; die tapes are arranged on the outer sides of rollers in the roller set, and are made of an inert material with high rigidity, high strength, high thermal conductivity and low expansivity; the using times of the die tapes is maintained to be more than 100,000; the interiors of roller shafts are heated automatically, the temperature monitoring is carried out through a monitoring system, and the technical indexes need maintaining through accurate constant temperature; pressure required in product processing is ensured through adopting the linear scale of the product to finely adjust and set equipment distances, and two-stage adjustment of coarse adjustment and fine adjustment are realized; the technical indexes can be adjusted after the equipment distances are stably maintained.
Owner:苏州亿光源光电科技股份有限公司

Disc type scanning electrode mask film microelectrolysis electrical discharge machining system and machining method

The invention discloses a disc type scanning electrode mask film microelectrolysis electrical discharge machining system. The system comprises a workpiece, a disc type electrode and working fluid, the machining surface of the workpiece is covered with a mask film, machining windows are formed in the mask film, the workpiece is placed in the working fluid, the disc type electrode is located in the part, above the workpiece, of the working fluid, and the workpiece and the disc type electrode are connected with a power source through wires. The machining system and machining method have the advantages that the workpiece is covered with the structurally-insulating mask film, the mask film shape can be precisely copied, the large-scale textured microstructure machining is conducted, the machining is only conducted in areas which are uncovered by the mask film, and the high locality is achieved; the tool electrode which is used is a large-area electrode, and relative movement exists between the tool electrode and the workpiece; losses of all areas of the tool electrode can be made to tend to be balanced by planning a special movement curve, and all machining gaps are made to maintain unified; the electrolysis only serves for the polishing effect, and the main removal form is spark discharge removal; the working fluid is supplied in a mode from top to bottom and sprayed out of the center of the disc type electrode from inside to outside, so that the working fluid renewal is made to be more effective.
Owner:GUANGDONG UNIV OF TECH +1

Conductive member, and charging roller, process cartridge and image forming apparatus using same

A conductive member forming a charging roller having high durability which maintains a stable gap with respect to an abutting member, comprising a long conductive supporting body, an electrical resistance adjusting layer, and gap maintaining members, wherein, taking X2 to be the thickness of the portions of the gap maintaining members which oppose the end faces of the electrical resistance adjusting layer, the relationship 1 mm≦X2≦3 mm is satisfied, taking X3 to be the interval between the end faces of the electrical resistance adjusting layer and the gap maintaining members which oppose these end faces, the relationship 0.1≦X3≦1 mm is satisfied, and taking X4 to be the interval from the faces of the gap maintaining members opposing the end faces of the electrical resistance adjusting layer, to the step difference faces of the reduced diameter sections of the electrical resistance adjusting layer, then X4 is 5 mm or greater, and is shorter than the length from the faces of the gap maintaining members which oppose the end faces of the electrical resistance adjusting layer to the positions on the electrical resistance adjusting layer opposing the end sections which correspond to the image forming region of the photosensitive body.
Owner:RICOH KK

Reshaping die of urban rail vehicle door corner part

InactiveCN108568474AGap stabilityEliminate defects of poor flatnessShaping toolsVehicle componentsEngineeringUrban rail
The invention provides a reshaping die of a door corner part. The reshaping die is used for reshaping an urban rail vehicle door corner part. The reshaping die of the door corner part comprises a lower die plate, an upper die plate, a guide column, a guide sleeve, a convex die, a concave die, a fixed wedge block, a sliding wedge block, a side compressing block and a door corner, wherein a groove is formed in the lower die plate and can reshape the door corner part arranged at a door corner, the plane of the fixed wedge block is in contact with the side compressing block when the door corner part reshaping die is closed and the fixed wedge block goes down, the oblique plane is in contact with the sliding wedge block, and the side compressing block is fixed, so that the fixed wedge block pushes the sliding wedge block to slide towards the concave die and clamp the door corner. Compared with the prior art, the door corner part reshaping die effectively overcomes the two defects of poor planeness and large 90-degree angle resilience occurred in door corner stamping formation, the defect problem which cannot be solved by adopting a traditional door corner reshaping method is eliminated,the product quality and precision of door corners can be effectively improved, and accordingly the forming precision of like members is remarkably improved.
Owner:JILIN UNIV

Screw down device of working rolls of four-roll rolling mill

The invention relates to a screw down device of working rolls of a four-roll rolling mill. The device comprises rolling mill memorial archways and bearing blocks arranged between the rolling mill memorial archways of upper supporting rolls. The device is characterized in that the rolling mill memorial archways are respectively provided with a round suspender hole corresponding to the centers of the gearing blocks of the left upper supporting rolls and the right supporting rolls; each round suspender hole is internally provided with a hydraulic cylinder hollow suspender, and the upper end of each hydraulic cylinder hollow suspender passes through a press cover at the top of the round suspender hole and is connected through a nut; the lower end of each hydraulic cylinder hollow suspender is connected with a screw down oil cylinder; and a piston of the screw down oil cylinder is in contact with the upper sides of the bearing blocks of the upper supporting rolls. The invention has the advantages that a hydraulic cylinder is used for replacing a worm gear-worm screw mechanism screw down device, thus not only the space can be saved, but also the gap of the working rolls can be automatically regulated and adjusted by utilizing a sensor to stably maintain the gap of the working rolls.
Owner:TIANJIN JINZHONG HEAVY MACHINE & EQUIP MFG

Intelligent support sliding bearing device with adjustable clearance and clearance adjustment method

The invention discloses an intelligent support sliding bearing device with adjustable clearance and a clearance adjustment method. The intelligent support sliding bearing device comprises a support sliding bearing, an inclined block is arranged under the support sliding bearing, a guide rail is arranged under the inclined block, the bottom surface of the inclined block is matched with the guide rail in a sliding mode, the inclined block moves in the axial direction of the guide rail, the top surface of the inclined block is an inclined plane with a taper of 1 to 125, a pushing mechanism is arranged at one end of the inclined block, the other end of the inclined block is connected with a reset spring, and a vertical displacement sensor and a horizontal displacement sensor are respectively used for detecting the vertical radial displacement and the horizontal radial displacement of a rotor; the vertical displacement sensor and the horizontal displacement sensor are connected with the input end of a monitoring controller, and the output end of the controller is further connected with the control signal input end of a servo motor; when the rotor vibration is too large, signals collected by the sensors are sent to the controller, the controller controls the servo motor to make a certain action, and the clearance between the bearing and the shaft neck is changed, so that the elliptical bearing play a role, the rotor amplitude is reduced, and the whole system has a good effect of vibration reduction and suppression.
Owner:XI AN JIAOTONG UNIV

Capacitive grating-type digital caliper with sensor and digital circuit separated and making method thereof

The invention discloses a capacitive grating-type digital caliper with a sensor and a digital circuit separated and a making method thereof. The capacitive grating-type digital caliper comprises a caliper blank, a moving grating assembly and an integrated circuit assembly, wherein the moving grating assembly comprises an ITO moving grating sensor and a flexible circuit board; the caliper blank comprises an ITO static grating and a caliper frame capable of moving on the ITO static grating; the integrated circuit assembly comprises a digital integrated circuit board, a display and a battery; the ITO static grating, the ITO moving grating sensor, the digital integrated circuit board and the display are sequentially and fixedly sleeve the caliper frame; a gap is preserved between the ITO static grating and the ITO moving grating sensor; the battery is electrically connected with the digital integrated circuit board; the ITO moving grating sensor is electrically connected with an input port of the digital integrated circuit board via a flexible circuit board; and the output port of the digital integrated circuit board is electrically connected with the display. After the ITO moving grating sensor collects caliper frame moving signals, the signals are transferred to the digital integrated circuit board, and after processed by the digital integrated circuit board, the signals are displayed via the display.
Owner:UNITED PRECISION MACHINE
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