176results about How to "Reduce changeover time" patented technology

The invention discloses a safety control method for fast revolution of a flat machine, which comprises the following steps: firstly, a coder of a servo motor of the machine head of the flat machine is simultaneously connected with a main control panel and a server, the servo motor is in control connection with the server, and the main control panel is in communication connection with the server; then, the main control panel obtains both the operation start point and the operation end point of each line before operation, and the maximum coder value which the operation of each line reaches through reading and analyzing design information of a product, then the main control panel is combined with the acceleration and deceleration performance control parameter to calculate the coder values corresponding to each deceleration position point and each acceleration position point; the main control panel sends the positions of each deceleration position point and each acceleration position point, the corresponding coder values and target speed to the server; finally, in the process of operation of each line, the server directly monitors the output value of the coder to enable the servo motor to operate at each deceleration position point and each acceleration position point according to destined coder values, so that optimal revolution control is realized.

The invention discloses a swing mechanism. The swing mechanism is used for driving a distributing valve of a concrete pumping device to swing and comprises a swing arm for driving the distributing valve and two hydraulic oil cylinders for driving the swing arm to swing from side to side. Ends of the two hydraulic oil cylinders are respectively connected with the left side and the right side of the swing arm, and the hydraulic oil cylinders are two-stage hydraulic oil cylinders. The invention further discloses the concrete pumping device comprising the swing mechanism. According to the swing mechanism and the concrete pumping device with the swing mechanism, the reversing speed is quick, impact is small, reversing time of the swing mechanism is close to reversing time of a main oil cylinder of the concrete pumping device, and pumping continuity is greatly improved.

A control method for sensitive load broadband constant amplitude alternating rectangular wave current is especially for alternating rectangular wave current generated by electromagnetic transmitting loop in frequency domain electromagnetic method which is applied to the geophysical prospecting and the nondestructive examination field. The method of the invention, comprising: regulating the voltage of an output current frequency, a voltage reference and an embedding voltage source to generate cyclic load current waveform with same shape and constant amplitude value, to calculate a reversing slope of the rectangular wave current, reversing time and amplitude value of the current. The device of the invention comprises a DC power supply, an alternating current rectangular wave current generator, an alternating current rectangular wave current control circuit, a sensitive load, an energy supplementing circuit, a hysteresis loop control circuit, an embedding circuit and an embedding voltage source. The invention improves gradient of reversing side of the alternating rectangular wave current, accomplishes reversing side linearity, and solves problems of improvement and invariableness of current amplitude value and expansion of frequency range and so on.

The invention belongs to the technical field of welding machines, and particularly relates to a full-automatic welder device and an operation method. The device comprises a cabinet, a turntable fixture, a feeding mechanism, a prepressing mechanism, a loading mechanism, a leveling mechanism, a welding mechanism, a discharging mechanism, a spot welder and a controller, wherein the turntable fixture is arranged on the cabinet, a workpiece is transferred onto the turntable fixture by the feeding mechanism, the prepressing mechanism is arranged on the cabinet, the loading mechanism is positioned on one side of the turntable fixture, the leveling mechanism is placed above the turntable fixture, the welding mechanism is arranged above the turntable fixture, the discharging mechanism is arranged on one side of the turntable fixture, the spot welder is disposed on one side of the loading mechanism, and the controller is arranged above the welding mechanism. The full-automatic welder device has the advantages that the device is high in compatibility, and is applicable to various types of products only by means of increasing or reducing assorted cushion blocks with proper heights, accordingly, fine adjustment is omitted, debugging difficulty is reduced, and type changing time is saved; and labor is saved, one person can operate multiple machines, and the quality of products, the qualified rate of the products, the consistency of the products and work efficiency are improved.

The invention discloses a self-compensation type floating three-jaw power chuck for a cylindrical grinding machine. The self-compensation type floating three-jaw power chuck comprises a shell, a bearing connecting unit and a floating clamping unit. The shell comprises a center sleeve axially provided with a center through hole and an outer shell arranged outside the center sleeve in a sleeving manner. A containing cavity is formed between the center sleeve and the outer shell. The bearing connecting unit is arranged in the containing cavity and comprises a roller pin one-way bearing, a middle bearing sleeve and a rolling bearing. The roller pin one-way bearing is arranged on the outer circle of the center sleeve in a sleeving manner, the middle bearing sleeve is fixed to the outer circle of the roller pin one-way bearing, and the rolling bearing is arranged on the outer circle of the middling bearing sleeve in a sleeving manner and connected with the inner circle of the outer shell. The floating clamping unit comprises a floating disc and clamping jaws arranged on the outer end face of the floating disc and used for clamping a workpiece. The floating disc is arranged on the end face of the outer shell through a gland in a floating manner. The design of sealing structures is achieved on the front portion and the rear portion of the containing cavity, and accordingly cutting fluid and other pollutants are prevented from entering the containing cavity during using. According to the self-compensation type floating three-jaw power chuck, a machine tool and robot automatic feeding and discharging system can conveniently conduct production exchange adjustment, the production exchange time is saved, and production exchange errors are avoided.

The invention discloses a kind of pure water electromagnetic ball valve. It includes electromagnet, mechanism of force amplification, ball valve core in the hole of valve body, rest spring, valve cap and push bar. On the upper of valve body there is water inlet, water outlet and back water gap connected by channel; through leaving and covering of ceramic ball and valve seat, forming open and closed circuit to change the direction of fluid flow. The ceramic ball is generated by driving force of the dry-type DC electromagnet and spring force of the reset spring, and transmitted by the push bar. The proper layout of flow channel balance hydraulic pressure of the push bar and the ceramic ball. The invention achieves zero leakage by sealing directly valve plug and valve cover, valve cover and valve body, the core of ceramic ball and valve seat; improves static performance of the electromagnetic ball valve by add valve port dampers; switch fast by electromagnets with larger thrust and mechanism of force amplification. This valve is versatile and fit to work under conditions of middle and high pressure water medium.

The invention provides a thin film cutting mechanism of a vertical type glass film laminating machine. The thin film cutting mechanism comprises a vertical type machine frame, a synchronous belt transmission mechanism, a thin film cutting knife wheel set and a knife wheel movement guide rail mechanism, wherein the synchronous belt transmission mechanism and the knife wheel movement guide rail mechanism are installed on the vertical type machine frame; the synchronous belt transmission mechanism is used for moving the knife wheel set and comprises a servo motor, a driving synchronous pulley, a driven synchronous pulley, synchronous belts and a synchronous belt driving shaft; the thin film cutting knife wheel set comprises a front face cutting knife wheel set body and a back face cutting knife wheel set body which are fixed to the two synchronous belts respectively; knife wheel movement guide rails are used for movement supporting and guiding of the knife wheel set and comprise the front face cutting knife wheel movement guide rail and back face cutting knife wheel movement guide rail. By means of the thin film cutting mechanism, the thin film cutting knife wheel set is controlled through servo control, the cutting size is accurate, manual operation of an operator is not needed, the remodeling time is saved, and the working efficiency is greatly improved.

The invention discloses an automatic space key assembling system. The automatic space key assembling system comprises a rack, and further comprises a space key lining feeding device, a four-axis mechanical arm, a CCD detecting device, a station rotating platform device, a roller press discharging device, a receiving device and a PLC which are arranged on the rack. By means of the above manner, theautomatic space key assembling system is characterized in that a tray feeding manner is adopted for automatic feeding, the mechanical arm is used for taking a material, CCD automatic detection is carried out, qualified space key linings are placed into key caps on positioning jigs, the linings and the key caps enter a roller press station to be subject to roller press after move loading and overturning, and pressed space keys are placed into the receiving device through the discharging device; in addition, the positioning jigs in multiple models are arranged in equipment, the procedure is orderly switched when model changing is needed without replacement of the jigs, and the model changing time is shortened; and meanwhile, errors generated by manual participation are reduced, the production efficiency is improved, and the advantages of being high in reliability, accurate in positioning, compact in structure, high in transposition speed, small in noise and the like are achieved.

The invention relates to a novel dual-channel peritoneal dialysis catheter suitable for operation under an endoscope. The peritoneal dialysis catheter comprises a peritoneal dialysis catheter body, the peritoneal dialysis catheter body comprises an external abdominal section, a gooseneck section and an abdominal cavity section, dacron buckles are disposed at two ends of the gooseneck section respectively, the abdominal cavity section comprises a first channel pipe and a second channel pipe, the first channel pipe and the second channel pipe are communicated with the peritoneal dialysis catheter body, drainage holes are formed in the first channel pipe and the second channel pipe, and the drainage holes are uniformly distributed. The novel dual-channel peritoneal dialysis catheter suitable for operation under the endoscope has the advantages that the dual-channel structural design is applied, catheter floating and blocking is not prone to occur, and the service life is long; more drainage holes are formed in the peritoneal dialysis catheter than those of single channel, the abdominal permeability is good, liquid replacing time is reduced, removing capacity of metabolic waste is increased, the efficiency is high, the peritoneal dialysis catheter is put under the endoscope, the positioning is accurate, operations are safe, reliable and low in price, and the cut part is small.

A fluid processing system has a plurality of segments configured to receive flow of a fluid product. Each of the plurality of segments has a line input, a line output, a cleaning input valve, and a cleaning discharge valve. The cleaning input valve connects to the line input and the cleaning discharge valve connects to the line output. A cleaning medium is provided wherein the cleaning medium is injected into a respective cleaning input valve and drained through a respective cleaning discharge valve, such that each segment can be cleaned independently of each other.

The invention provides a flexible printed circuit (FPC) feeding mechanism and a prepressing addition suction nozzle. The feeding mechanism comprises a prepressing head, the prepressing addition suction nozzle, a conveying plate, a motor, a quartz strip and sliding rails, wherein the prepressing addition suction nozzle is fixed on the prepressing head, and the prepressing addition suction nozzle and the prepressing head share the same vacuum and act together to be used for adsorbing an FPC; the motor provides power for the mechanism. The prepressing addition suction nozzle is provided with joints capable of rotating flexibly, the positions of vacuum suction nozzle bodies can be adjusted at will, and FPCs of different lengths can be adsorbed conveniently. A flexible rotating mechanism is adopted for the FPC feeding mechanism, replacement can be achieved rapidly during product replacement, line change time is shortened, stability of all components is improved, and production efficiency is further improved.

The invention discloses a film combining machine, which comprises a forming device, a glue coating device, a material driving device, an electric control device and a speed synchronization device, wherein the forming device, the glue coating device, the material driving device, the electric control device and the speed synchronization device are arranged on a machine frame, the glue coating device comprises a glue outlet mechanism and a glue extruding mechanism for supplying glue to the glue outlet mechanism, the glue outlet mechanism is directly connected with a glue outlet of the glue extruding mechanism, and the glue extruding mechanism is arranged on a horizontal driving mechanism so that the glue outlet mechanism only moves in the horizontal direction for coating the glue. The film combining machine has the advantages that the structure is simple, the cost is low, the reliability and the harmony are high, the installation and the debugging are convenient, the production capacity and the production efficiency are greatly improved, and the like.

The invention provides a processing device for an elevator steel cable groove which can renovate and process the steel cable groove used for driving a steel cable wheel in a short time, and can prevent the service quality of the elevator from decreasing. The invention is provided with a mounting part (8) which is demountably arranged on a fixing rack (5) of the elevator, a processing part (9) which is arranged at the opposite position of the steel cable groove part of a main steel cable (2) being used for suspension hanging the case of the elevator and being positioned inside the steel cable groove (4a) of a driving steel cable wheel (4), and a movable bearing part (13) which is arranged on the mounting part and used for bearing the processing part and which can move along the rotating axle direction and the radius direction of the driving steel cable wheel. The processing part is provided with a rotary grinding wheel (10) which is used for grinding and processing the steel cable groove. The rotary axle (16) of grinding wheel forms an angle of about 30 degrees with a tangent (17) starting from the processing point of the driving steel cable wheel.

The invention provides an incubator for medical experiments that can automatically replace the culture solution, comprising a liquid storage room, a culture room, a lifting device, a liquid changing device, a carrying device, and a PLC controller; the lifting device includes a column, a fixed plate, Lifting motor, guide column, sliding seat, screw joint block, screw rod and support; the liquid changing device includes a liquid discharge pipe, a liquid discharge head, a liquid discharge pump, a liquid filling pipe, a liquid filling head, a liquid filling valve, an electronic flow meter and drip plate; the carrying device is located at the bottom of the liquid changing device; the carrying device includes a drive motor, a reduction gear set, a bevel gear set, a base, a bearing, a carrier plate, a petri dish, a positioning block and a positioning groove; The present invention realizes the automatic replacement of the culture solution in the cell culture process through the setting of the lifting device, the liquid changing device and the carrying device, avoids the problems of inaccurate timing of the manual replacement of the culture liquid and the problems that are easy to cause errors in the liquid changing, and significantly reduces the The liquid exchange time reduces the difficulty of liquid exchange.

The invention discloses an electromagnetic directional valve which comprises a valve body, a main valve core, an electromagnet and a main restoring spring, wherein the main valve core is positioned in the valve body and can move back and force along an axial channel of the valve body. The electromagnetic directional valve is characterized by also comprising a side cover, a pilot valve core and a pilot restoring spring, wherein the side cover is arranged on one side of the valve body; the pilot valve core can move back and force in an axial duct; the electromagnet is arranged on the other side of the side cover; and a push rod of the electromagnet pushes against the pilot valve core. Compared with the prior art, the electromagnetic directional valve provided by the invention has the advantages that with adoption of a hydraulic amplification principle and combination of a pilot control structure, an original working stroke is greatly shortened, and thus the miniaturization design on the electromagnetic directional valve is favorable; and meanwhile, the working stroke is shortened, and thus power can be greatly reduced.

The invention provides an automatic pneumatic saw web replacing device which comprises a rack. The rack is provided with a saw web base pushing mechanism, a saw web rotating mechanism and a finished product hanging rod and further provided with a swing arm mechanism. The swing arm mechanism comprises a swing arm, one end of the swing arm is connected with the rack through a rotary shaft, and the other end of the swing arm is provided with a first suction cup and a second suction cup. When the swing arm mechanism swings to one side, the first suction cup corresponds to the saw web base pushing mechanism in position, and the second suction cup corresponds to the saw web rotating mechanism in position; and when the swing arm mechanism swings to the other side, the first suction cup corresponds to the saw web rotating mechanism in position, and the second suction cup corresponds to the finished product hanging rod in position. The automatic pneumatic saw web replacing device is low in fault rate, small in occupied space, high in execution efficiency and good in machining accuracy.