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56results about How to "Solve the skew" patented technology

Hydraulic dynamic synchronization control and position compensation system

The invention relates to a hydraulic dynamic synchronization control and position compensation system which comprises a detection unit, an electrical control unit and a hydraulic control unit, wherein the detection unit is composed of four displacement sensors positioned on four lifting oil cylinders; the hydraulic control unit is composed of a speed regulating valve, a general-way electromagnetic valve and four shunt electromagnetic valves; the four shunt electromagnetic valves are respectively communicated with a rodless cavity of each lifting oil cylinder through a check valve; a rod cavity of each lifting oil cylinder is connected to an oil return pipeline through a pipeline; the displacement sensors are connected with the electrical control unit through electric cables; and the electrical control unit is respectively connected with the general-way electromagnetic valve and each shunt electromagnetic valve. During the ascending and descending processes of a tundish car, the displacement sensors and the electromagnetic valves constitute a dynamic closed-loop control system, the real-time position of the oil cylinders is dynamically maintained within an allowed error range, the synchronization control and position compensation functions of the tundish car in a long-time loading state as well as static and dynamic states can be realized, and the system has the advantages of low cost, low fault rate and low maintaining expense.
Owner:CHINA NAT HEAVY MACHINERY RES INSTCO

Manufacturing method of short slot hole of circuit board

The invention relates to a manufacturing method of a short slot hole of a circuit board. The manufacturing method comprises the following steps of firstly, printing a to-be-manufactured short slot hole pattern on the circuit board; then, drilling circular guide holes respectively in the two ends of the to-be-manufactured short slot hole pattern, wherein the circle center of each circuit guide hole is positioned in the centerline of the short slot hole pattern, and is internally tangential with the tail end of the short slot hole pattern; finally, selecting a second drill bit which has the same diameter with the short slot hole to drill holes. The manufacturing method has the advantages that by adjusting the drilling point of the drill bit, the deflection angle caused by the rotation of the drill bit is compensated, the deflection force and lateral movement of overlapping part during drilling are reduced, the accuracy of the short slot hole is improved, the problem of skewing of the short slot hole is effectively solved, the defect rate of the short slot hole is reduced, the quality problem caused by deformation of the short slot hole during processing is solved, the discard rate of the circuit board is reduced, the production cost of enterprises is reduced, the production efficiency is improved, and the competitiveness of enterprise is improved.
Owner:南通胜宏科技有限公司

Anti-floating and anti-tilt tool in circuit board wave soldering process

The invention relates to an anti-floating and anti-tilt tool in a circuit board wave soldering process. The anti-floating and anti-tilt tool comprises a wave soldering tool supporter used for placing PCB (Printed circuit board). The invention is characterized in that the wave soldering tool supporter is provided with a press apparatus used for pressing DIP components, the press apparatus comprises a fixed mount arranged in the wave soldering tool supporter, a press strip and a plurality of press mechanisms arranged on the press strip, and the two ends of the press strip is fixed on the fixed mount through a clamp mechanism. When the DIP components pass across a furnace, each DIP component is pressed by the press mechanisms to prevent the problems of skew of components and high floating ofthe DIP components caused by that tin blocks fall off by the vibration of the wave soldering tool supporter in a wave soldering track in the transmission process. The anti-floating and anti-tilt toolin circuit board wave soldering process provided in the invention has the advantages of saving manpower, raising production efficiency and stabilizing the DIP components. Thus the enterprise production cost is reduced.
Owner:昆山元崧电子科技有限公司

Design-improved permanent magnetic synchronous servo motor structure

The invention relates to a design-improved permanent magnetic synchronous servo motor structure. The design-improved permanent magnetic synchronous servo motor structure comprises a rotor shaft (1), abearing end cover (3) and an angular contact ball bearing (4), wherein the rotor shaft (1) is mounted in a casing (5), a permanent magnet (7) is mounted at the central portion of the rotor shaft (1),a stator (6) is sleeved with the permanent magnet (7) and is in the casing (5), the angular contact ball bearing (4) is mounted at one end of the rotor shaft (1), the bearing end cover (3) is mountedat one end of the casing (5), an outer ring of the angular contact ball bearing (4) is fixed, a deep groove ball bearing (8) and a rotary transformer (9) are sequentially mounted at the other end ofthe rotor shaft (1), the rotary transformer (9) is close to an end portion of the rotor shaft (1), and a socket connector (11) is mounted on the casing (5). The design-improved permanent magnetic synchronous servo motor structure is advantaged in that coaxiality of a center hole of the end cover and the casing is guaranteed, external structure strength of a motor is improved, and a problem of rotor skewing caused by coaxiality of a split type motor and a local vibration problem caused by bolt connection are solved.
Owner:SHANGHAI AEROSPACE CONTROL TECH INST

Protection device for nickel/chromium composite plating

The invention discloses a protection device for nickel/chromium composite plating, belonging to the field of hydraulic cylinder plating. The protection device comprises an outer protection sleeve and an inner protection sleeve, wherein the inner protection sleeve is arranged at one end of the outer protection sleeve and is provided with a shoulder; the outer diameter of the inner protection sleeve is matched with the inner diameter of the outer protection sleeve; the inner diameter of the inner protection sleeve is matched with a cylinder piston rod; the outer protection sleeve is provided with an outer sleeve liquid discharge hole; the inner protection sleeve is provided with an inner sleeve liquid discharge hole and a liquid discharge groove; the outer protection sleeve and the inner protection sleeve are combined through bolts; the inner wall of the inner protection sleeve is provided with a thread; and the whole protection device is fixed on a non-plating position of the cylinder piston rod through the thread of the inner protection sleeve and a thread of a workpiece. According to the invention, the protection device is high in corrosion resistance, favorable in reusability, quick to replace, convenient to operate and good in protection effect, saves the cost, avoids the cross contamination of plating bath solutions and improves the production efficiency.
Owner:XCMG HYDRAULICS CO LTD

Paper conveying mechanism

The invention relates to a paper conveying mechanism, which is characterized by comprising a machine frame, a paper feeding mechanism, a deviation correcting adsorption paper feeding mechanism and a paper discharge mechanism, wherein the paper feeding mechanism, the deviation correcting adsorption paper feeding mechanism and the paper discharge mechanism are sequentially arranged on the machine frame, the paper feeding edge of the deviation correcting adsorption paper feeding mechanism is connected with the paper discharge edge of the paper feeding mechanism, and the paper discharge edge of the deviation correcting adsorption paper feeding mechanism is connected with the paper feeding edge of the paper discharge mechanism. Therefore, the paper conveying mechanism has the advantages that in the paper conveying process, the problem of paper skewing or deviation generated in the conveying process is solved through the deviation correction treatment by the deviation correcting adsorption paper feeding mechanism so that the paper can be orderly forwards conveyed, the paper can be stably and reliably forwards conveyed through the adsorption positioning of the deviation correcting adsorption paper feeding mechanism so that the printing or processing accuracy of paper printing processing equipment is ensured, and the quality detection accuracy of printed products and the detection accuracy of code spraying equipment are ensured. The paper conveying mechanism can be applied to paper processing equipment such as paper printing processing equipment, printed product quality detection equipment and code spraying equipment.
Owner:陈晓滨

Cutting seedling method for efficient propagation of North America redwoods

The invention relates to a cutting seedling method for efficient propagation of North America redwoods. The cutting seedling method for efficient propagation of North America redwoods is characterized by comprising the following steps of cutting slips, cutting seedbeds, preparing light substrate containers, cuttage and transplanting. Based on the conventional cutting seedling method, combining cutting seedling of the light substrate containers, by conducting substrate allocation, cultivation on the seedbeds, unwanted sprout removing and strong seedling remaining, and other technique measures, the cutting seedling method for efficient propagation of North America redwoods has the advantages of being simple and fast to operate, low in cost, and easy in operating procedures, solves the problems of skewing, crown inclining and growing slowly in cutting seedling of the North America redwoods, and improves the survival rate of afforestation of cutting seedling of the North America redwoods, thereby improving the quality of cutting seedling plants of the North America redwoods and the afforestation effect; furthermore, the cutting seedling method for efficient propagation of North America redwoods has the advantages of being long in afforestation period, free of growth delaying periods, and suitable for popularization in actual production.
Owner:恩施土家族苗族自治州林科所

Secondary rectifying mechanism for combined bag supplier

The invention discloses a secondary rectifying mechanism for a combined bag supplier. The mechanism comprises a frame, a vertical bag supply mechanism and a horizontal bag supply mechanism, a vertical bag taking cylinder and a horizontal bag taking cylinder, a conveying chain and a conveying belt module, and a motor; the frame is provided with a baffle plate in front of a discharge end of the conveying chain; two position sensors are oppositely mounted on the frame near the discharge end of the conveying chain; two rectifying sensors are oppositely mounted on the frame near the end of the baffle plate; a controller is mounted on the frame; on the one hand, the controller is electrically connected with the two position sensors and the two rectifying sensors; and on the other hand, the controller is electrically connected with the motor. The mechanism is simple in structure, solves the problem that material bags are supplied aslant or not in place, needs no manual intervention, is high in reliability, and guarantees normal actuation of a subsequent filling procedure.
Owner:ANHUI YONGCHENG ELECTRONICS & MECHANICAL TECH

Conveyor belt intermittent conveying mechanism

ActiveCN109230222AChange the way you exerciseSolve the skewConveyorsFood coatingGear wheelDrive shaft
The invention discloses a conveyor belt intermittent conveying mechanism. The conveyor belt intermittent conveying mechanism includes a support belt mechanism, a conveyor belt, a bull gear, a bevel gear, a synchronous belt driven wheel, a pinion, a synchronous belt driving wheel, a synchronous belt, a left bracket, a tension spring, a pinch roller combination, a conveyor belt roller, a right bracket, a cam, a fixed shaft and a driving shaft, wherein two ends of the driving shaft are supported by the left and right brackets; one end of the driving shaft is coaxially fixed with the bevel gear and the bull gear, and the other end of the driving shaft is connected with the cam through a key; the conveyor belt roller is hinged to the driving shaft through a bearing; the synchronous belt drivenwheel is fixed at one end of the conveyor belt roller; the synchronous belt driving wheel and the pinion are coaxially fixed on the fixed shaft; the synchronous belt driving wheel drives the synchronous belt driven wheel through the synchronous belt to drive the conveyor belt roller to rotate; and two ends of the pinch roller combination are hinged to the left and right brackets respectively, andare pressed on the synchronous belt by the tension spring. The conveyor belt intermittent conveying mechanism changes the movement mode of the conveyor belt, and solves the problem that the top of a steaming package is skewed and the appearance is not beautiful due to the movement of the conveyor belt.
Owner:SHANDONG YINYING COOKING MACHINERY

Open installation inspection well and pavement engineering connecting structure and method in municipal administration pavement engineering

The invention discloses an open installation inspection well and pavement engineering connecting structure and method in municipal administration pavement engineering. The open installation inspection well and pavement engineering connecting structure comprises an inspection well and a pavement engineering road surface; the inspection well comprises a well bottom, a well chamber and a well ring, the upper edge of the well chamber is matched with the lower edge of the well ring, and the lower edge of the well chamber is matched with the well bottom, wherein a well ring strengthening layer is arranged on the outer wall of the upper portion of the well chamber, and the well chamber supports the well ring and the pavement engineering road surface through the well ring strengthening layer and is used for providing stable supporting for the inspection well and the pavement engineering road surface. According to the open installation inspection well and pavement engineering connecting structure and method, the well ring strengthening layer with the thickness not smaller than the design thickness of a roadbed is arranged, micro-adjustment is carried out on the structure of the well ring of the inspection well, the roadbed on the periphery of the lower edge of the well ring is compacted, and therefore serious sedimentation, deflection, surrounding structure loosening and cracking and the like, caused by basis unevenness and sedimentation, of a road surface well opening are solved. Meanwhile, the invention further provides a open installation inspection well and pavement engineering connecting method in the municipal administration pavement engineering.
Owner:北京城建远东建设投资集团有限公司

Gold-plated pin arrangement cutting equipment for connection of communication gateway equipment and network cable connector

The invention relates to the field of communication gateways, in particular to gold-plated pin arrangement cutting equipment for connecting a communication gateway device with a network cable connector. In order to solve the problem that in the prior art, in the processing process of gold-plated pins of a network cable connector, metal wires are arranged loosely, so that the metal wires are inclined. The gold-plated pin arrangement cutting equipment for connecting the communication gateway equipment with the network cable connector comprises a fixed bottom frame, a processing cabin body and the like, a treatment cabin is mounted at the top of the fixed underframe. According to the device, automatic arrangement and fixed-length cutting of metal wire raw materials of gold-plated array pins of the network cable connector are achieved, bulk loose and inclined metal wires are automatically gathered, the inclined metal wires are all corrected to be parallel in a gathering mode, the metal wires are spread and arranged again after being gathered, and the production efficiency is improved. And the two sides of the cutting position are pressed and fixed, and the situation that the metal wire deforms due to force in the cutting process is avoided.
Owner:HANGZHOU CCRFID MICROELECTRONICS

Image sense component and optical machine mobule using said image sense component

An image sensing component includes a component sent and several image sensors containing several sensing pels array in a same direction with that of the image sensors. The above mentioned image sensors are fixed on the sensing components, the adjacent image sensors are aligned with each other in distance, therefore when the above mentioned image sensing components are mounted on a photo module, the image sensors are not tilted nor offset oppositing to the position of the photo seat to solve the problem of tilt of every image sensor to related photo seat.
Owner:AVISION PRECISION IND (SUZHOU) CO LTD
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