30 results about "Draw distance" patented technology

The invention discloses a drawing and heat-setting device, which is used for producing hollow fiber membranes and comprises a frame, a drawing system, a heating system and a transmission control system, wherein the drawing system, the heating system and the transmission control system are installed on the frame. The drawing and heat-setting device is characterized in that the heating system is positioned above the drawing system; the drawing system comprises a left-hand threaded and right-hand threaded screw, three polished rods and two drawing mechanisms in bilateral symmetry; the three polished rods are distributed in an inverted triangular form, and the left-hand threaded and right-hand threaded screw is disposed at the center of the inverted triangle and connected with the transmission control system; the heating system mainly comprises a heating tank and left and right screw lifting mechanisms connected with the same; the transmission control system controls screws of the lifting mechanisms to rotate in the same direction and drives the heating tank to move up and down or pause regularly; an inverted groove is reserved in the middle of the heating tank, and an infrared heating plate is mounted at the inner top of the groove; and the depth and the width of the groove are designed to fit with the length and the diameter of a drawing guide bar, and the length of the groove fits with a largest drawing distance of the drawing guide bar.

The invention discloses a toppling-prevention drawer chest which comprises a chest body, drawers and supporting foot driving assemblies. The supporting foot driving assemblies are used for driving supporting feet to act. Any layer of drawers is provided with a connecting rod limiting device and an elastic convex block, and when the drawers are opened, the connecting rod limiting device on the layer of drawers can drive the supporting feet to extend out of the chest body; when the drawers are closed, and the finally closed drawers control retraction of the supporting feet through the elastic convex blocks. The toppling-prevention drawer chest achieves that any layer of drawers can control out-drawing of the supporting feet, the out-drawing distances of the supporting feet are controlled bythe drawers having maximum out-drawing distances; when the drawers are closed, the finally closed drawers flexibly control the supporting feet to retract through the elastic convex blocks.

According to the house type drawing method for drawing the door and window hole in the one-step dragging mode, drawing points are arranged on one wall line of the target wall, the length and the widthof the temporary mesh can be adjusted at will by dragging the drawing points, a user can conveniently copy the accurate door and window hole, and the accurate extension width and the accurate drawinglength of the door and window hole do not need to be input for multiple times; A plurality of distance prompts are set on an operation interface; in the drawing process, the extension width width fordrawing the door and window hole in the current drawing state can be prompted; drawing distance prompts of the length length and the distances between the left and right points of the door and windowhole and the starting point position start point and the end point position endpoint of the target wall respectively, so that a plurality of pieces of data can be changed at the same time without inputting the data for multiple times; According to the whole method, multiple pieces of data of the target door and window hole can be drawn through one-step simple operation, and the precise door and window hole which a user wants to draw can be drawn under the condition that precise numerical values do not need to be input.

The invention provides a wind tunnel test stand with a unilateral aerodynamic force. A handle is rocked to provide power; the handle is rocked, a middle gear drives a left gear and the right identical gear to rotate in the same direction, and rotation of the left gear and the right gear drives a first screw rod and a second screw rod to move forwardly; a rear flow guide clamping plate moves along a linear guide rail under pulling force effects of the first screw rod and the second screw rod; drawing of a thin plate is driven through the pulling force of the first screw rod and the second screw rod and the traction force of the linear guide rail; the rotation angles of the first screw rod and the second screw rod can be measured by a rotation disc; and the drawing distance of the thin plate can be obtained according to pitches of the first screw rod and the second screw rod. The wind tunnel test stand with the unilateral aerodynamic force has the advantages that reverse engagement of the gears controls movement of the first screw rod and the second screw rod to achieve high precision and high reliability, movement of the first screw rod and the second screw rod can be controlled only by rotating the handle, the operation is extremely simple, the overall structure is simple, the weight is light and the like.

The invention relates to the technical field of horizontal continuous caster control and particularly discloses an AC (alternating current) servo drive cast iron bar horizontal continuous caster control system. The system is characterized by comprising a PLC (programmable logic controller) and an AC servo system connected with the PLC, wherein the AC servo system is connected with an AC servo motor; the AC servo motor is connected with a speed reducer and a billet drawing roller; the AC servo motor and the PLC are connected through a photoelectric encoder; the photoelectric encoder is connected with the AC servo system; and the PLC is also connected with a touch screen. The system disclosed by the invention has the following advantages: the 131072P / r pulse of the servo motor is driven, the positioning accuracy of the system is high, control on uniform billet drawing step (the length of each billet drawing is consistent) is realized, and the billet drawing quality and the bar forming rate are improved. The control precision error of the drawing distance and reversing quantity does not exceed 0.1mm, and the pause time is controlled within 0.1s.

The invention discloses a stainless steel sheet wire-drawing device for controlling the wire-drawing stroke. A supporting platform is arranged in a supporting rack, a limiting rack is arranged below the supporting platform, the supporting platform is sunken inward to form a mounting groove, a supporting arm is arranged on the supporting platform, a compression spring is arranged on the supporting arm, a compression column is arranged in the compression spring, a compression disc is arranged at the bottom end of the compression column, a hydraulic box is arranged in the supporting rack, and a plurality of flexible arms are arranged in the hydraulic box; a guide rod is sleeved by a guide cover which is provided with a supporting plate, the supporting plate is fixedly provided with a motor, the supporting rack is provided with a control box, the control box is connected with the motor, an anti-collision pad is arranged on the limiting base, a distance sensor is arranged in the limiting base, a wire-drawing brush is arranged in the supporting rack, a central shaft is arranged in the wire-drawing brush, and the central shaft is provided with a belt in a sleeving manner. The device monitors and displays the wire-drawing stroke by arranging the sensor, so that people can precisely control the wire-drawing distance conveniently, the labor intensity is reduced, and the device is relatively safe.

The invention provides an expansion method for a contour line of a bulbous bow. The expansion method specifically comprises the following steps: S1, sequentially drawing distances from various points to a baseline on a middle longitudinal section plan of the bulbous bow onto a shell expansion plan, expanding transverse curvature and not expanding longitudinal curvature of a bulb in a shell expansion way, and smoothly connecting the various points on the shell expansion plan to form an expanded outer contour line of the bulb; S2, determining an inflection point between the bulb and a shell which is adjacent to the bulb, wherein the inflection point is one point at the top of the bulb; S3, for the shell bow contour line above the inflection point on the shell expansion plan, by taking the contour line above the inflection point of the bow contour line in the middle longitudinal section plan as reference, further expanding other shell parts according to the principle of only expanding the transverse curvature and not expanding the longitudinal curvature. By adopting the expansion method provided by the invention, the bulb and the adjacent shell structure can be correctly expanded, and the shape and the size of the shell can be truly reflected, thereby being conductive to determining the specification of the shell; meanwhile, typesetting, lofting, nesting and processing of the shell in the late stage are guided.

An information processing apparatus that generates a drawing command for drawing visual information by irradiating laser light on a recording medium includes a line information obtaining unit that obtains line information of a line including a starting point of the line; a line segment dividing unit that obtains a drawing distance to be drawn over a predetermined time period that must elapse before an impact of residual heat from drawing an adjacent line can be disregarded and divides at least a portion of the line from the starting point to the drawing distance into a line segment having a predetermined length; and a control factor adjusting unit that adjusts a control value of a laser control factor that affects a density of the line segment such that the control value for the line segment that is affected by a greater amount of residual heat is adjusted to a greater extent.

The invention discloses a device for detecting vacuum degree of a vacuum arc-extinguishing chamber. In the detection device, a magnetic control coil is used in the periphery of the arc-extinguishing chamber to be detected to produce a pulse magnetic field; a bracket is arranged under the arc-extinguishing chamber to be detected to play a role in supporting; a positioning mechanism is used for compacting a pipe body of the arc-extinguishing chamber to be detected on the bracket so as to realize the positioning of the arc-extinguishing chamber to be detected; an drawing mechanism is used for clamping a movable pull rod of the arc-extinguishing chamber to be detected and drawing upwards the movable pull rod to pull a movable contact and a static contact open inside the arc-extinguishing chamber to be detected after the pipe body of the arc-extinguishing chamber to be detected is compacted and positioned by the positioning mechanism; therefore, according to the detection device, through the mutual cooperation of the bracket, the positioning mechanism and the drawing mechanism, the positioning and the drawing distance of the arc-extinguishing chamber to be detected are realized; thus, after the magnetic control coil is powered, the vacuum degree of the vacuum arc-extinguishing chamber is detected. According to the detection device, the vacuum degree of the vacuum arc-extinguishing chamber is detected through the cooperation between all mechanisms and rack bodies, so that the detection efficiency of the vacuum degree of the vacuum arc-extinguishing chamber to be detected is improved.

The invention discloses a format data flow file measurement method. The method comprises the steps of marking at least two points on a format data flow file; calculating a drawing distance between themarked points under a current ratio; and according to the drawing distance and a proportional scale of the format data flow file, calculating out an actual distance between the marked points. Throughthe method, the actual distance between the required points can be calculated out, so that the user experience is improved.

The invention discloses a drawing and heat-setting device, which is used for producing hollow fiber membranes and comprises a frame, a drawing system, a heating system and a transmission control system, wherein the drawing system, the heating system and the transmission control system are installed on the frame. The drawing and heat-setting device is characterized in that the heating system is positioned above the drawing system; the drawing system comprises a left-hand threaded and right-hand threaded screw, three polished rods and two drawing mechanisms in bilateral symmetry; the three polished rods are distributed in an inverted triangular form, and the left-hand threaded and right-hand threaded screw is disposed at the center of the inverted triangle and connected with the transmission control system; the heating system mainly comprises a heating tank and left and right screw lifting mechanisms connected with the same; the transmission control system controls screws of the lifting mechanisms to rotate in the same direction and drives the heating tank to move up and down or pause regularly; an inverted groove is reserved in the middle of the heating tank, and an infrared heating plate is mounted at the inner top of the groove; and the depth and the width of the groove are designed to fit with the length and the diameter of a drawing guide bar, and the length of the groove fits with a largest drawing distance of the drawing guide bar.

The invention discloses a carbon fiber tube preparing method, which includes steps of increasing spindle number of a carbon fiber knitting machine, adjusting drawing distance and knitting carbon fibers to form a carbon fiber tube with the closed surface. The invention further discloses a baking tube and a microwave oven, which utilize the carbon fiber tube. The carbon fiber tube has excellent strength and is lower in requirements for later curing treatment of carbon filaments, and simultaneously, radiation filaments can be thinner or shorter on the premise that the closed knitted structure can keep constant radiant power. The baking tube provided with the carbon fiber tube is smaller in size, the carbon fiber tube has excellent interface property so that sparking can be reduced when the carbon fiber tube acts with microwaves and quality of the baking tube is improved further. Installing space of the baking tube in the microwave oven provided with the baking tube can be effectively reduced, so that the number of the baking tubes can be increased, and multi-directional multi-working-mode baking effect in an oven cavity is realized.

The invention discloses a drawing performance test fixture and a drawing performance test method for a full-lamination display device. According to the drawing performance test fixture, a distance measurement unit and a pressure measurement unit are integrated on a test part, constantly-increasing drawing force is applied to a cover plate of a full-lamination display panel through the test part, the adhesion state of the cover plate of the full-lamination display panel and a TFT display module is observed at the same time, and data of the distance measurement unit and data of the pressure measurement unit are read at the moment when the cover plate and the TFT display module are separated; thus, the drawing force and the drawing distance of the full-lamination display device are measured at the same time, and the working efficiency is improved while the drawing performance of the full-lamination display device is effectively tested. By means of the drawing performance test method for the full-lamination display device, the drawing force and the drawing distance of the full-lamination display device are measured at the same time, and the working efficiency is improved while the drawing performance of the full-lamination display device is effectively tested.

The invention discloses a format data flow file measurement method. The method comprises the steps of marking at least two points on a format data flow file; calculating a drawing distance between themarked points under a current ratio; and according to the drawing distance and a proportional scale of the format data flow file, calculating out an actual distance between the marked points. Throughthe method, the actual distance between the required points can be calculated out, so that the user experience is improved.