210results about How to "Avoid Quality Accidents" patented technology

The invention discloses a digital-bus-based automatic small-U-shaped-pipe inserting system of a fin assembly. The digital-bus-based automatic small-U-shaped-pipe inserting system comprises a mechanical arm (1), a mechanical hand (2), a bracket and small U-shaped pipe bearing tray assembly (3) capable of supplying small U-shaped pipes circularly and an electric control device (4). The mechanical arm is fixedly mounted on the ground and comprises an X-coordinate driving mechanism, a Y-coordinate driving mechanism and a Z-coordinate driving mechanism. The mechanical hand comprises a body (21), clamping fingers (22) and a supporting finger (23). The bracket and small U-shaped pipe bearing tray assembly capable of supplying the small U-shaped pipes circularly comprises a multilayer bracket (31), small U-shaped pipe bearing trays (32), a power device (33) and an electric control mechanism (34). The electric control mechanism comprises an industrial control computer, a power supply loop, a mode identification loop, a counting loop, a small U-shaped pipe grabbing loop, a pipe insertion control loop and the like. The digital-bus-based automatic small-U-shaped-pipe inserting system has the advantages that automatic operation can be achieved, influence of human factors on production progress is reduced, and quality of products obtained through pipe insertion processes can be guaranteed.

The invention discloses a clamping manipulator for a tobacco dedicated charging basket, comprising a paw guide rail, two paw clamping sheets, a rotary servo motor, a swinging servo motor and a three-dimensional rectangular coordinate robot, wherein two paw clamping sheets can slide along with the paw guide rail and are mutually connected via a cylinder; the rotary servo motor is fixed on the supporting seat of a first motor and can drive the paw guide rail to rotate; the swinging servo motor is fixed on the supporting seat of a second motor and can drive the supporting seat of the first motorto rotate; and the three-dimensional rectangular coordinate robot is connected with the supporting seat of the second motor. The scheme controls clamping, dumping, shaking, transporting and releasingof the charging basket by the clamping paw by controlling the components of the cylinder, the servo motor, the rectangular coordinate robot and the like, thus realizing automation control, improving feed liquor preparing efficiency, avoiding quality accident of artificially missending material, lowering raw material consumption and worker labor intensity to the utmost, and improving workshop sanitary environment.

A novel non-preheated immersed Al-C-Zr sprue and its manufacture technology are disclosed. Its advantages are high heat shock stability and impact resistance, no need of preheating, long service lifeand low cost.

The invention discloses a construction method for a round underground continuous wall two-in-one structure. The construction method includes the following steps that (1) bracket steel sheet piles are prefabricated, and round steel reinforced concrete enclosing purlins are prefabricated in a segmented mode; (2) pile sinking is carried out; (3) a foundation pit is excavated; (4) gaps in locking positions of the steel plate piles are blocked; (5) the round steel reinforced concrete enclosing purlins are assembled; (6) the foundation pit continues to be excavated downwards until the design depth is reached, and the gaps in the locking positions of the steel plate piles are continuously blocked through waterstop steel strips; (7) a bottom plate waterstop steel plate is welded to the inner side faces of the steel plate piles, and the bottom plate waterstop steel plate surrounds the inner side of a support in the circumferential direction in an endless shape; and (8) a cushion layer is laid, then a bottom plate is cast to reach a set thickness, and the bottom plate waterstop steel plate is made to stretch into the bottom plate. Through the construction method, the support cost for the foundation pit of an underground building can be reduced effectively; on the basis, the support is used as an outer wall of the underground building, the novel structure that the support and the outer wall are integrated is formed, and a foundation is laid for reducing the overall construction cost of the underground building.

The invention discloses an unordered automatic pipe grabbing and inserting manipulator for small U-shaped pipes of a fin assembly. The unordered automatic pipe grabbing and inserting manipulator comprises a body (1), two clamping fingers (2) and two lifting fingers (3), the top end of the body is connected with the tail end of a mechanical arm (4) through a mounting seat (11), a C coordinate rotating mechanism is arranged in the mounting seat, arc-shaped grooves I (11) and arc-shaped grooves II (21) matched with outer diameter and U-shaped radian size of the small U-shaped pipes are formed in the bottom end face of the body and the inner side faces of the clamping fingers respectively, a position sensor and a distance sensor are arranged on the body, the clamping fingers and the lifting fingers are arranged in a mutually perpendicular manner and connected with a transmission connection mechanism respectively, and distance size from the upper surface of the finger end of each lifting finger to the groove bottom of the corresponding arc-shaped groove I is matched with diameter size of each small U-shaped pipe. The unordered automatic pipe grabbing and inserting manipulator can realize automated operation, influence, on production progress, of human factors can be lowered, and product quality in the pipe inserting process can be guaranteed.

The invention provides a multichannel calibration and verification device and method for multiple sections of electric-quantity management ICs. The method mainly controls a plurality of channel test boards through a main control board to test the multiple sections of electric-quantity management ICs and in a test process, a localized closed-loop correction method is adopted to calibrate voltage and current precision of the multiple sections of electric-quantity management ICs. Moreover, through adoption of a channel self-detection module, precision calibration is carried out on cell boards and current boards of the channels of the device so that precision calibration of a voltage and current reference source of the device is realized and stability of the reference source of the device is ensured. The method also uses a channel combination module according to practical needs to combine the plurality of channels into large channels so as to meet test demands of the multiple sections of electric-quantity management ICs. The method uses a method of using the plurality of channels to carry out parallel tests simultaneously so that test efficiency of the multiple sections of electric-quantity management ICs is improved, expandability of the multichannel calibration and verification device is strengthened, demands that users configure the channels flexibly according to practical conditions can be met and user use cost is reduced.

The invention relates to a nitrogen spring, in particular to a directional anti-rotating nitrogen spring. The directional anti-rotating nitrogen spring consists of a cylinder barrel, a guide seat, a piston rod and a sealing piece, wherein a guide groove is formed in the inner wall of the cylinder barrel, and a boss matched with the guide groove in the inner wall of the cylinder barrel is arranged at one end of the piston rod. By adopting the technical scheme provided by the invention, when the nitrogen spring works, the piston rod and the cylinder barrel can be prevented from relatively rotating, the piston rod can be guaranteed to linearly move in the cylinder barrel, the orientation of the nitrogen spring can be effectively guaranteed, the piston rod and the cylinder barrel are prevented from relatively rotating, thus the use stability of a die is guaranteed, quality accidents are prevented from occurring, the safety of the die is improved and the service life of the die is prolonged.

The invention discloses an abrasive belt grinder capable of improving the grinding quality of the abrasive belt grinder, comprising a PLC control system, a grinding head, an executive cylinder, an electric push rod, and a pull pressure sensor controller, the executive cylinder and the electric push rod The tension and pressure sensor controller are connected as a whole and connected with the grinding head. The execution cylinder, electric push rod and tension pressure sensor controller are respectively connected with the PLC control system. The PLC control system is connected with the feed speed sensor and the rotary speed sensor. The invention can realize precise control of the pressure of the abrasive belt on the workpiece during normal operation, and can quickly separate the abrasive belt from the workpiece when the system fails, thereby protecting the workpiece and reducing quality accidents.

The invention discloses a multi-segment graded testing technology for a full-automatic aging machine, and the technology employs a multi-segment measurement mode for multiple measurement of the electrical performance parameters of each capacitor, can achieve the flexible setting of quality grading standards according to the mean value of the measurement data of a database while judging whether each capacitor is qualified and avoiding quality accidents, and effectively improves the testing efficiency of the capacitors.

The invention provides a dynamic water amount adjustment method for laminar flow cooling of a medium-thickness plate and a wide and thick plate considering head-tail temperature deviation. The steel sheet temperature is detected dynamically according to a certain cycle period by considering the advancing speed of a steel sheet in laminar flow cooling, and the flow of the required cooling water is dynamically calculated according to the newly detected temperature; then, the group number N of valves with the opening degree being 100% and the valve opening degree K of the last group of flow adjustment valves are determined according to the flow, wherein the K is larger than or equal to zero and smaller than or equal to one; and the delay time delta t of flow adjustment is determined according to the valve group number. By means of the dynamic water amount adjustment method, it can be guaranteed that the head and the tail of the steel sheet can be the same in temperature after being cooled, uniformity of product performance is guaranteed, the situation that the head performance is qualified while the tail performance is unqualified, or the tail performance is qualified while the head performance is unqualified is avoided, and controversy about quality is avoided as much as possible.

The invention relates to a tobacco shred mark distribution station, which comprises a manual mark distribution station, an automatic mark distribution station and a control station, wherein the manual mark distribution station comprises a connecting pipeline connected with tobacco shred delivery pipelines from a cigarette making machine and a pneumatic shred matching machine respectively; the connecting pipeline comprises a plurality of switching elbows, straight switching pipes and straight positioning pipes; the automatic mark distribution station comprises an S-shaped elbow; the S-shaped elbow can be driven by a speed reducer or an electric (pneumatic) executer to rotate 360 degrees in a way of taking one end as the centre of a circle; barcodes are pasted on the straight switching pipes and the S-shaped elbow; the control station acquires and detects the position information of the pipelines by utilizing various methods, such as a photoelectric switch, an approach switch, a barcode scanner and the like, after the pipelines are switched and jointed; and the mark distribution station has error correction and alarming functions. The tobacco shred mark distribution station reduces crushing in a tobacco shred delivery process and improves production efficiency and product quality.

The invention discloses a method for testing color fastness (light/chlorinated water composite color fastness) of textiles. The method comprises the following technical processes: immersing fabric into available-chlorine chlorinated water with a concentration of 20 mg/L for 30 min, enabling the fabric to absorb the liquid completely, controlling a mangle expression of the fabric, and enabling a liquid rate of the fabric to be 100%; and performing a light fastness test under an illumination condition with an irradiation amount of 85 KJ/m <2>.nm, and determining the performance of light/chlorinated water composite color fastness of the fabric according to sample color-change situations. According to the method disclosed by the invention, the influences on the color fastness of the textiles from the chlorinated water and illumination are comprehensively considered, and a stage test method comprising the steps of immersing by the chlorinated water and performing the light fastness test is adopted, so that the limited situation that the color fastness standard at home and aboard is only determined by light color fastness or chlorinated water color fastness is broken through.

The invention discloses a corrugated board production line real-time monitoring method, which comprises the following steps: to begin with, mounting a length meter at the end portion of a paper guideroll at a paper exit of each original paper frame on a production line and at the entrance of each overbridge elevator above a corresponding corrugated host; mounting a finished product meter at an entrance of a drying tunnel; and connecting an electromagnetic induction head on each meter to a displayer arranged on a production line master control station correspondingly, so that paper feed lengthof lining paper, tile paper and face paper and paper output length of semi-finished product and finished product paperboards and the like can be displayed on a counter of the displayer; meanwhile, shrinkage ratio of the lining paper and shrinkage ratio of the tile paper are displayed on a paper shrinkage window in real time synchronously; and current corrugation height data of a corrugated rolleris displayed on the displayer in real time synchronously after calculation of a single-chip microcomputer. Through fine collection and calculation of such parameters, real-time states of lining paperand tile paper on the production line can be reflected in real time correctly and reasonably, thereby providing possible quality problems analyzed based on the collected data for managers in real time.

The invention discloses an efficient logistics trolley. The efficient logistics trolley comprises a trolley main body, wherein the trolley main body is provided with a handle, a base plate, rollers and a control main plate; the handle is fixedly connected with side walls of the base plate; the rollers are detachably connected with the lower surface of the base plate; the control main plate is arranged in the base plate; and the trolley body is provided with a weight displaying and alarming device. According to the technical scheme, the trolley body is provided with the weight displaying and alarming device, the weight displaying and alarming device comprises a weighing displaying device and a quantifying alarming device; the weighing displaying device can automatically weigh trolley-mounted materials and display the weight value on a display; the work efficiency is improved; the labor intensity of an operator is reduced; and the quantifying alarming device gives an alarm when the weight of the trolley-mounted materials reaches a designated value. The weight of the trolley-mounted materials is effectively prevented from exceeding maximum trolley-mounted load; quality accidents due to the fact that the logistics trolley is collapsed is avoided; the safety performance is improved; the operator can set everyday conveyed materials; frequent counting processes are omitted; and the time and the labor are saved.

The invention belongs to the field of automobile manufacturing, and particularly provides a cantilever beam supporting device and a preparation method thereof. The cantilever beam supporting device comprises a base and a rod piece connected with the base, wherein the base and the rod piece are made of fiber-reinforced resin-based composite materials. The cantilever beam supporting device has the characteristic of lightweight so that the weight of a vehicle can be reduced, and the energy-saving and emission-reducing effects can be achieved. Meanwhile, the cantilever beam supporting device can effectively reduce the resonance effect of the cantilever beam supporting device and a vehicle frame, breaking can be prevented, quality risks are avoided, and the preparation method is simple and feasible.

The invention belongs to the technical field of laying methods for refractory bricks of rotary kilns, and particularly discloses a construction method for laying refractory bricks of a rotary kiln through a bricklaying supporting device. The construction method comprises the following construction steps that S1, the construction portion of the inner wall of a kiln shell of the rotary kiln is cleaned; S2, a plurality of longitudinal straight lines and circumferential lines are drawn on the inner wall of the kiln shell of the rotary kiln; S3, the bottoms of the refractory bricks are laid, namely the lower semicircles are laid; S4, the bricklaying supporting device is mounted; S5, the tops, namely the upper semicircles, of the refractory bricks are laid; S6, opening sealing and seam sealing work is prepared; S7, after sealing is completed, a lead screw is tightened, and the bricklaying supporting device is contracted, so that brickwork of the circle is made to automatically draw close to the center of the circular ring in a centralized mode; S8, seams in the brickwork and the inner wall of a cylinder are checked; S9, after the refractory bricks of the first circle are laid, the lead screw is tightened, and the bricklaying supporting device is contracted for withdrawing from the first circle; and S10, the steps from the step S3 to the step S9 are repeated for laying of the next circle. By the adoption of the construction method, quality accidents, such as falling and breaking of the refractory bricks, frequently occur during operation of the rotary kiln are avoided to a great extent.

The invention relates to a cigarette weight control calibration system which is applied to the technical field of cigarette mechanical equipment and comprises a cigarette sampling and conveying device, a weight detection table and a weight control device. The cigarette sampling and conveying device is used for receiving a sampling signal sent by the weight control device, extracting a cigarette and transmitting the cigarette to the weight detection table; the weight detection table is used for detecting the weight of the cigarette to obtain a second weight value and sending the second weight value to the weight control device; and the weight control device is used for receiving the second weight value, detecting the weight of the cigarette to obtain a first weight value, and calibrating the weight control device according to the second weight value and the first weight value.