70results about How to "Shorten return time" patented technology

A conveyor for a pouch-filling machine has an endless track with a working stretch and a return stretch extending from a downstream end of the working stretch to an upstream end of the working stretch. A plurality of carriages each carrying at least one permanent magnet and a clamp ride on the track for movement through the stations on the working stretch and for movement from the downstream end of the working stretch along the return stretch back to the upstream end of the working stretch. An array of electromagnets on the track only along the working stretch and an electronic controller connected to the electromagnets together constitute a frequency-controlled linear direct drive that advances the carriages downstream through the working stretch while varying the travel speeds of at least half of the carriages in the working stretch. A mechanical or frequency-driven conveyor is provided in the return stretch.

A standalone packaging manipulation apparatus performing predetermined packaging manipulation operations on bags being transported along an arcuate transportation path of a rotary-type bag transportation apparatus, the standalone packaging manipulation apparatus including a main arm that pivots and also extends and retracts in a horizontal plane, a sub-arm provided at a distal end portion of the main arm so as to ascend and descend and to rotate in the horizontal plane, and filling nozzle provided on the sub-arm with a predetermined spacing therebetween and simultaneously filling a plurality of bags with liquid. The operation of these elements is performed by mutually independent servomotors.

The invention discloses a horizontal broaching machine. The invention mainly has the following technical points: a speed-difference valve is arranged between a hydraulic cylinder and a reversing valve; the moving speed of a piston of the hydraulic cylinder can be raised by more than two times when a high-pressure oil is fed into a non-rod cavity of the hydraulic cylinder and then the return time of a broach can be largely shortened and the work efficiency of the broaching machine can be enhanced. One the other hand, a manual reversing valve is adopted, and a mechanical operation device is arranged between the manual reversing valve and a sliding seat. The operation device can drive a valve rod of the manual reversing valve to move when the sliding seat moves to a corresponding position so as to realize an automatic reversing of the hydraulic cylinder. Compared with a reversing device formed by a solenoid directional valve and a stroke switch, the invention has the advantages that the use is reliable; the regulation is convenient; the structure is simple and the manufacturing cost is low.

A vibration-type inertia force sensor includes: an oscillator; a driving section for oscillating the oscillator; a sensing section for sensing a strain caused in the oscillator due to an inertia force; and a power supply section for supplying power to the driving section and the sensing section in a normal state and for supplying power to one of the driving section and the sensing section and not supplying power to the other of the driving section and the sensing section in a power-saving state.

A sheet skew feed correcting apparatus is provided which includes: a driving rotation member that is driven to rotate; a first driven rotation member that is pressure contacted against the driving rotation member; a first holder rotatably holding the first driven rotation member; a second driven rotation member that is pressure contacted against the driving rotation member; a second holder rotatably holding the second driven rotation member; and a shutter portion with which a leading end of a sheet comes into contact for skew feed correction, the shutter portion moving pivotally with one end portion thereof supported by the first holder and another end portion thereof supported by the second holder; wherein the shutter portion has abutting portions with which the leading end comes into contact, and a coupling portion extending so as to couple the abutting portions together between the first and the second driven rotation members.

The invention discloses a sheet metal folding production line. The sheet metal folding production line comprises a feeding unit, a long folding unit and a short folding unit arranged successively fromfront to back. The long folding unit comprises a base A, the base A is provided with a long folding machine I and a long folding machine II having the same structure and oppositely arranged, and thelong folding machine I and the long folding machine II are movably disposed on a linear guide A above the base A and connected to a ball screw A.A longitudinally set linear module table is arranged inside a frame A, a clamp and a clamp movement mechanism are arranged on the upper part of the linear module table, and a lifting cylinder is connected to the lower part of the linear module table. Theshort folding unit comprises a base B. The base B is provided with a fixing short folding machine and a moving short folding machine having the same structure and oppositely arranged, the fixing shortfolding machine is fixed on the base B, and the base B is provided with a linear guide B and a ball screw B, the moving short folding machine is movably disposed on the linear guide B and connected to the ball screw B, and the base B is further provided with a belt conveying mechanism.

The invention discloses a differential valve. The main technical point is that a first flow circuit and a second flow circuit which are not mutually communicated are arranged on a slide valve core. When the slide valve is located on a first working position, a first pilot-controlled port of a valve body is communicated with a first flowing liquid port of the valve body through the first flow circuit, and a second pilot-controlled port of the valve body is communicated with a second flowing liquid port of the valve body through the second flow circuit. When the slide valve is located on a second working position, the second pilot-controlled port is directly communicated with the second flowing liquid port of the valve body, and the second pilot-controlled port of the valve body is communicated with the first flowing liquid port of the valve body through the second flow circuit of the slide valve. The moving speed of a hydraulic cylinder piston is increased over two times under the situation of no changing the flow of a hydraulic pump. If the differential valve is installed on a horizontal broaching machine, which will greatly reduce the return time of a broaching tool, and increase the working efficiency of the broaching machine.

The invention discloses a novel propelling mechanism with a quick-return characteristic and relates to a four-rod mechanism. The novel propelling mechanism with the quick-return characteristic comprises a machine frame, a motor, a lower disk, a connection rod slider, a first guide rail, a pushing claw, a first gear, a second gear, a propelling rack, a rotating rack and an upper disk. The motor is fixedly connected with the machine frame; a motor rotating shaft is connected with the lower disk; the rotating rack is fixed to the connection rod slider; one end of the connection rod slider is connected with the lower disk; the other end of the connection rod slider is installed on the guide rail, moves on the guide rail and meanwhile rotates along with the lower disk; the guide rail is fixed to the upper disk so that the guide rail can run around the circle center of a simultaneous gear; the first gear is engaged with the rotating rack; the first gear and the second gear are connected through a rotating shaft; the shaft is provided with the upper disk which is located between the first gear and the machine frame; the second gear is engaged with the propelling rack, and the propelling rack slides on a second guide rail through a slider; and the second guide rail is fixedly connected with a support which is fixedly connected with the machine frame, and a propelling gear is fixedly connected with the pushing claw.

The invention discloses a method for returning straws to a field. According to the method, straws are collected, naturally dried and crushed; the crushed straw is soaked in a treatment solution; filtering is carried out, and the soaking solution is removed; the straw is steamed; the steamed straw is buried in field ditches; an organic fertilizer is applied, and soil is used for covering and is compacted. According to the invention, the straw is crushed, soaked in the treatment solution and is steamed; a composite synergist (o-nitro phenol sodium, polyaspartic acid, potentilla anserine, gibberellin, hydroxyacetamide, and sodium tripolyphosphate) is added to the organic fertilizer; with microbes in the soil, lignin in the straw can be fully degraded, and straw decomposition efficiency is greatly improved. Therefore, straw returning time is shortened, and the occurrence of wheat root diseases under a corn straw returning condition is reduced.

The invention discloses an aluminum section forming device. The aluminum section forming device comprises an extruding machine, a shearing machine, a pulling machine and a storage rack, wherein the shearing machine is positioned between the extruding machine and the pulling machine, the pulling machine is positioned behind the shearing machine, and the storage rack is positioned behind the pulling machine. The aluminum section forming device is characterized in that the pulling machine comprises a rack, a conveying belt, a driving roller, a driven roller, a driving roller driving device and two clamping heads, wherein the conveying belt is in an annular shape and sleeves the driving roller and the driven roller, the driving roller driving device is connected with the driving roller, the two clamping heads are respectively installed on both ends of the conveying belt, the clamping heads comprise two electromagnets and electromagnet fixing seats, the electromagnets are fixed in the electromagnet fixing seats, and the electromagnet fixing seats are installed on both sides of the conveying belt through sliding tracks which are vertically laid on the conveying belt. According to the aluminum section forming device, potential safety hazards are eliminated, and additionally, the pulling efficiency is greatly improved.

The invention discloses a big data query return method and device. The big data query return method comprises the steps of obtaining a corresponding start record number and a termination record numberbased on a query start time and a query termination time, wherein each query record has a corresponding record number, and the record number has an auto-increment attribute; determining a differencevalue of the termination record number and the start record number as the total number of the query records, and determining a quotient of the total number of the query records to the preset single-page number as the number of total pages; and returning to the corresponding query records in a paging mode from the start record number to the termination record number on basis of the single-page number and the number of the total pages. This method makes use of the auto-increment attribute of the record number to obtain the total number of the query records by means of the difference value of thetermination record number and the start record number, then determines the number of the total pages according to the total number of the query records and the preset single-page number, and returnsto all the query records that are queried in the paging mode so that the query return speed of tens of millions of the big data is effectively improved so as to better satisfy the user experience.

The invention relates to a vortex spinning broken yarn detection method based on image features. The vortex spinning broken yarn detection method adopts a broken end detection device comprising an image acquisition unit for detection, and the signal output end of an industrial camera is electrically connected with the signal input end of an operation processing module. The operation processing module is connected with a controller through a communication module, and the signal output end of the controller is connected with an broken yarn alarm device. According to the vortex spinning broken yarn detection method, yarn images in a detection area in the vortex spinning process are directly collected, the yarn breaking situation is judged in time, and yarn breaking warning and positioning information is sent out at the moment when defects are generated. The position of the broken yarn can be rapidly determined, the detection efficiency is improved, and the rework time is shortened.

The invention belongs to the technical field of automobiles, and discloses a braking device and an anti-lock braking system. The braking device comprises an ABS solenoid valve and a brake air chamber,the ABS solenoid valve comprises an air inlet and an exhaust port, and the air inlet and the exhaust port can be selectively opened and closed; the brake air chamber is arranged on the ABS solenoid valve, a vent is formed in the brake air chamber, and the vent can be respectively communicated with the air inlet and the exhaust port. The braking device forms the brake air chamber integrated with the ABS solenoid valve, has a compact overall structure, and is convenient to install and arrange. The braking response time is greatly reduced, and the braking performance is improved. In addition, when the braking is released, the remaining compressed gas in the braking air chamber can be discharged through the exhaust port at the fastest speed to quickly release the braking, and the decompression process of the ABS solenoid valve and the brake return time are greatly reduced, thereby reducing the rate at which a brake heats up and improving the performance of the ABS solenoid valve.

The invention discloses an HRTF personalization based on sparse principal component analysis. The method comprises the following steps: firstly, performing dimension reduction on HRTF by applying a principal component analysis method; carrying out dimensionality reduction on the physiological parameters by using a sparse principal component analysis method; and finally, taking the physiological parameters subjected to dimension reduction as input, taking the HRTF subjected to dimension reduction as output, and performing nonlinear fitting by applying a generalized regression neural network. According to the method, dimension reduction of three-dimensional physiological parameters can be realized by applying sparse principal component analysis, original dozens of-dimensional physiological parameters are reduced to several dimensions, and the structure of the data is not influenced. Local convergence of data is avoided when a correlation method is applied to dimensionality reduction processing, and the dimensionality reduction effect is improved. And regression is performed on the HRTF principal component coefficient by using the dimension-reduced data, so that the regression time isshortened, and the over-fitting risk is avoided. And HRTF personalization can be better realized by applying the three-dimensional physiological parameters after dimension reduction.

The invention discloses a tablet personal computer control method and system applied to education. The tablet personal computer control method includes the steps that through a camera device, a face image of a student user is obtained; the face image is sent to an operation management platform, and a feedback result of an application management platform is received; when the feedback result represents that the student user is a legal user, a tablet personal computer chamber of a charging cabinet is controlled to open; when it is detected that the student user takes out a tablet personal computer, a door of the chamber is closed. According to the tablet personal computer control method and system applied to education, an enterprise invests to customize the tablet personal computers specialfor education in batch and provides services such as management, maintenance and upgrading, parents rent the tablet personal computers as required, and the government (schools) provides subsidies; inthis way, co-construction and sharing of the three sides can be achieved, key problems can be solved, and popularization of the tablet personal computers for education is promoted.

The invention relates to the field of buildings, in particular to building cement mixing equipment. Large-particle cement and impurities can be screened out, and the quality of the screened cement after being mixed and stirred is improved. The equipment comprises a screening device, a water pipe, a stirring device, a base, and a skip car. Air cylinders the screening device retract to drive a sliding rail to move, the sliding rail moves to enable a connecting rod fixing base A to move, meanwhile a connecting rod fixing shaft A is driven to move, through the pulling effect of the connecting rodfixing shaft A on a connecting rod, the connecting rod moves and inclines, the connecting rod drives a connecting rod fixing shaft B to move, meanwhile a connecting rod fixing base B is driven to move, through movement of the connecting rod fixing base B, a mud injection opening is pulled to incline, so that a material baffle is opened, the large cement particles and impurities on a screen slide into a waste material frame along the screen, and the effects that the screening device screens the large cement particles and the impurities, and the quality of the stirred cement is improved are achieved.