555 results about "Linear displacement" patented technology

The invention provides a method and a system for detecting gas concentration in an epitaxial growth reaction cavity, computer equipment and a storage medium. The method comprises the following steps: acquiring a reflected light signal, a reference signal and a reaction cavity environment signal; carrying out wavelength calibration and intensity baseline calibration on the reflected light signal according to the reference signal, and generating an experimental absorption spectral line according to the calibrated reflected light signal; according to the reaction cavity environment signal, fitting the experimental absorption spectral line and a target absorption spectral line obtained by querying a preset database, and performing inversion to obtain concentration information of the gas to be detected. According to the invention, through double calibration of a reference channel, an experimental spectral line and a database target spectrum are strictly aligned on a frequency scale and an amplitude scale, interference of linear displacement and baseline fluctuation on fitting is reduced, and quantitative precision is improved; and meanwhile, an environmental condition is introduced as a physical constraint, so that parameter coupling is weakened, the identifiability and robustness of inversion are improved, the dependence on pure empirical correction is reduced, and the stability of detection data is improved.

A linear displacement sensor based on electric field self-coupling, comprising a moving scale base (1) and a fixed scale base (2). One or more paired electrode units are provided on the side surface of the moving scale base (1) facing the fixed scale base (2); each paired electrode unit comprises at least three sensing electrode groups spaced in the length direction of the moving scale base (1); each sensing electrode group comprises one excitation electrode (1-1) and one sensing electrode (1-2) spaced in the length direction of the moving scale base (1). A plurality of modulation unit groups arranged in the length direction of the fixed scale base (2) are provided on the side surface of the fixed scale base (2) facing the moving scale base (1); in the length direction of the fixed scale base (2), all the paired electrode units on the moving scale base (1) can respectively correspond to the same number of adjacent modulation unit groups on the fixed scale base (2); each modulation unit group comprises one modulation unit F(2-1) and one modulation unit G(2-2); the modulation unit F(2-1) can correspond to at least one sensing electrode group in the paired electrode units in the length direction of the fixed scale base (2).

The invention relates to the technical field of industrial water treatment equipment, and discloses an intelligent flushing self-cleaning filter system for industrial water treatment. A dynamic suspended matter monitoring module of the system collects three-dimensional distribution data of deposits on the surface of a filtering medium in real time, and mixed deposition characteristics of suspended solids and oil stains are recognized through a multispectral imaging technology; the differential pressure trigger control module establishes a mapping relation between sediment thickness and fluid resistance according to the three-dimensional distribution data, and generates a cleaning trigger instruction when the real-time differential pressure data reaches a dynamic threshold interval; the spiral trajectory planning module analyzes the cleaning trigger instruction, and generates a composite motion trajectory containing a rotation angular velocity and an axial displacement rate in combination with the current position of a suction nozzle and a filter screen topological structure; the multi-mode flushing execution module synchronously adjusts torque output of a hydraulic motor and linear displacement of a piston cylinder based on the composite motion trail, so that a suction nozzle covers the whole effective filtering area of a filter screen along a spiral path.

The utility model relates to the technical field of bonding wire production, in particular to a wire breakage prevention traction device for bonding wire drawing equipment. The wire feeding device is reasonable in structural design and mainly comprises the base, the vertical plate, the guide sliding groove, the transverse push rod, the movable blocks and the guide sliding plate, the transverse push rod is used for driving the movable blocks and the guide sliding plate to linearly move in the length direction of the guide sliding groove, and the two movable blocks on the outermost side are provided with the wire feeding block and the wire discharging block respectively. In this way, the traction position of the wire feeding block can be correspondingly adjusted according to the position of a bonding thick wire on the discharging roll, and the position of the wire discharging block can be correspondingly adjusted according to the position of drawing equipment. And meanwhile, the positions of the wire guide blocks can be adjusted according to the bottom end positions of the wire block and the wire outlet block, the rotating directions of the wire guide blocks are correspondingly adjusted, the traction resistance is reduced, and the wire breaking prevention traction effect is good.

The invention discloses an electromagnetic actuator with a rigidity compensation function. The end face of the inner side of a stator iron core of a C-shaped structure is provided with a trapezoidal slope notch, and the working face of a rotor is a slope matched with the notch of the stator iron core; the N pole and the S pole of the permanent magnet are attracted to the upper end arm of the stator core, the coil winding is wound on the yoke portion of the stator core, the flexible guide mechanism is connected with the rotor and the base, the lower end arm of the stator core is connected with the base through a fastener, and the fastener is screwed to adjust the relative distance between the end face of the stator core and the working face of the rotor. According to the invention, the rotor and the stator core form an inclined air gap, and the linear displacement of the rotor is not equal to the normal thickness of the air gap any more, but is amplified in geometrical relationship. The fundamental contradiction of strong coupling of the stroke and the thickness in a traditional plane air gap is overcome, on the premise that a small initial normal air gap is maintained, the macroscopic motion stroke several times of the thickness is achieved, and the problem that large stroke and high linearity are difficult to consider at the same time is solved from the structural principle.

The invention belongs to the technical field of valve executing parts, and discloses an executing mechanism driven by shape memory alloy, which comprises a supporting disc and a guide cylinder, a first binding post, a second binding post and a plurality of groups of positioning columns are arranged on the top surface of the supporting disc, the plurality of groups of positioning columns are spirally distributed, and a memory alloy wire is arranged on the top surface of the supporting disc. One end of a memory alloy wire is connected with the second binding post, the memory alloy wire is in sliding contact with the surface of the positioning column, and finally the memory alloy wire is in contact with the surface of the first binding post and then penetrates through a through hole in the center of the supporting disc to penetrate into a guide cylinder, and a connecting cylinder at the top end of the guide cylinder penetrates into the through hole in the center of the supporting disc; a positioning spring and a sliding block are arranged in the guide cylinder in a penetrating mode, the sliding block is connected with the tail end of the memory alloy wire, and a mandrel is arranged at the bottom end of the sliding block. The memory alloy wire is arranged in a spiral mode and occupies a smaller space, when the memory alloy wire is heated and integrally contracts, the memory alloy wire pulls the sliding block to move, longer linear displacement is achieved, and the executing mechanism is more compact in structure.

The invention discloses a high-precision dynamic linear displacement metering device based on laser scattering suppression, and relates to the related technical field of displacement monitoring, and the device comprises a host, rails, a stabilizing mechanism, supporting legs, a measuring mechanism, a data processing mechanism, a data processing mechanism, a data processing mechanism, a data processing mechanism, a data processing mechanism and a data processing mechanism, the host is slidably installed above the rails and is used for horizontally moving the host; the stabilizing mechanism is installed between the rails and is used for keeping the host in a horizontal state; the stabilizing mechanism is connected between the track and the main machine, the two adjusting mechanisms are installed between the stabilizing mechanism and the main machine and used for adjusting the horizontal angle and the inclination angle of the main machine, and the track, the stabilizing mechanism, the supporting feet and the adjusting mechanisms are arranged to cooperate with each other. The invention relates to a multi-dimensional angle adjusting device, in particular to a multi-dimensional angle adjusting device, which solves the problem that existing equipment cannot realize horizontal movement, autonomous leveling and multi-dimensional angle adjustment in industrial field application. The problems that an existing dynamic linear displacement metering device is insufficient in environmental adaptability and weak in anti-interference capacity, and the measurement stability is limited by external conditions are solved.

The invention relates to an intelligent temperature control rock heat-water-force-sound-light multi-field coupling disturbance shearing device and a use method of the intelligent temperature control rock heat-water-force-sound-light multi-field coupling disturbance shearing device. A disturbance shearing mechanism composed of a trapezoid pressing rod, a constant damper and a spring is additionally arranged on the driving side of the lower shearing box. When the tangential loading shaft is propelled at a constant speed, the mechanism can convert stable linear displacement into disturbance shear load of periodic loading and unloading, so that engineering power disturbance is simulated. According to the device and the method, periodic shear disturbance is synchronously applied to a rock sample in a high-temperature seepage environment, mechanical response, seepage characteristic change, internal micro-fracture and surface full-field deformation of the rock sample are comprehensively observed, and an advanced test means is provided for researching a catastrophe mechanism of a deep rock mass under the action of multi-field coupling and dynamic disturbance.

A planetary roller screw adapted for solving insufficient structural strength of the conventional planetary roller screw while proceeding with precise motion control is disclosed. The planetary roller screw includes a main screw having an external thread, a nut having an internal thread, and a planetary assembly having rollers. Each roller includes an outer periphery having an external thread. The pitches of the external thread of the main screw, the internal thread of the nut, and the external thread of each roller are identical. The helix direction of the external thread of the main screw is opposite to that of the internal thread of the nut. When one of the main screw, the nut, and the planetary assembly acting as a driving member rotates, a linear displacement direction of the planetary assembly relative to the nut is opposite to that of the main screw relative to the planetary assembly.

The utility model belongs to the technical field of conveyer belt calendering equipment, and discloses an automatic trimming knife device for a conveyer belt calender. The two servo motors respectively drive the two sets of ball screws to respectively drive the cutters to move, and the cutters are aligned with the edges of the canvas; the two sets of infrared detectors are arranged on one side of the roller; the infrared detector is connected with the servo controller, and the servo controller is connected to the servo motor; the linear displacement sensor measures the moving value of the cutter. The servo motor is connected with the ball screw through a key and a coupler to transmit torque; the other end of the flange sleeve is fixed with the left mounting bracket; the two ends of the ball screw are supported and mounted in the left mounting bracket and the right mounting bracket through bearings respectively; and a nut on the ball screw is connected with a cutter. According to the device, the cutter always tracks the detection position constantly, it is guaranteed that the tracking position of the cutter is consistent with the position of the detected canvas, and therefore it is guaranteed that the edge of a cut film completely coincides with the edge of the canvas.

Systems and methods are disclosed herein for performing a milling operation within a wellbore in an oil-and-gas setting. An example system can include a milling tool, which can include a cutting head, a linear actuator configured to advance the cutting head, and a linear displacement measurement sensor associated with the linear actuator. The sensor can be configured to measure linear displacement of the linear actuator. The system can also include a cable to lower the milling tool, a control unit that receives data from the sensor, and a display device that displays a visualization of the data from the sensor. The control unit can analyze the data to determine a location of a milling target, a status of the milling operation, and undesirable milling conditions down hole. The control unit can perform a remedial action, such as by turning on a pump to remove debris from the wellbore.

Systems, devices, and methods are disclosed for pen that distributes viscous plant material, such as rosin, from a cartridge. The pen receives, from a button, input corresponding to a first control instruction. The pen has a motor configured to receive the first control instruction from the controller and, in response, drive a spindle that linearly displaces a plunger, wherein the linear displacement of the plunger causes plant material to be pushed out of a nozzle of the pen. The pen cartridge includes a rubber plug configured to be linearly displaced by the plunger to cause rosin to be disturbed from the cartridge.

The displacement reduction type precise piezoelectric displacement table comprises an integrated guide base, a displacement reduction mechanism is arranged in the integrated guide base in a matched mode, a piezoelectric ceramic driver is arranged in the displacement reduction mechanism, and the piezoelectric ceramic driver serves as a power source to drive the displacement reduction mechanism to deform. The reduced displacement is generated and is conducted to the integrated guide base, so that nanoscale linear displacement is generated; according to the invention, through the integrated displacement reduction mechanism, the high resolution of the piezoelectric ceramic driver is further improved. Any tiny stroke of the driving source can be accurately reduced to sub-nanometer level output displacement. The design of controlling precision with precision provides a more stable and more controllable technical path for applications requiring extreme precision, such as scanning probe microscopes and quantum dot positioning.

The invention discloses a two-dimensional flexible displacement sensor and a displacement measurement modeling method thereof, and the sensor comprises a fixed ruler which is provided with two columns of excitation electrodes and at least one column of receiving electrodes; the movable ruler is provided with two columns of sensing electrodes and at least one column of reflecting electrodes with the same column number as the receiving electrodes; after an excitation signal is introduced into the excitation electrode, if the movable ruler generates relative displacement relative to the fixed ruler, an induction signal is generated on the induction electrode, and the induction signal is reflected to the receiving electrode through the reflection electrode; the movable ruler and the fixed ruler are both of a multi-layer board structure made of flexible printed circuit (FPC) materials. Linear displacement measurement and angular displacement measurement can be realized, the complexity of equipment caused by mutual cooperation of a plurality of sensors is effectively reduced, and the sensors are further miniaturized.

The invention relates to a sample collection auxiliary device for groundwater resource investigation, which belongs to the technical field of groundwater sample collection, is configured and connected to the bottom of a sampler, and comprises a tank body vertically arranged at the bottom of the sampler, and a conical balancing weight arranged right below the bottom of the tank body, the plurality of impact columns vertically penetrate through the bottom of the tank body in a surrounding manner at equal intervals by taking the center line of the tank body as the center, the connecting plate is horizontally arranged in the tank body, the lower side of the connecting plate is fixedly connected with the tops of the impact columns, and the linear displacement mechanism is arranged on the tank body. The linear displacement mechanism is used for driving the impact column to impact the top of the conical balancing weight from top to bottom, so that the conical balancing weight obtains larger potential energy, a rope between the sampler and a wellhead is straightened in an auxiliary manner, and a distance mark on the rope conforms to the actual depth of the sampler; the specific depth of the monitoring sampling well is accurately sampled, so that a sample of a specific layer of underground water is obtained.

The invention belongs to the technical field of aircraft assembly, and discloses an aircraft front wheel turning angle monitoring device and method, and the device comprises a mechanical sensing module, a signal processing module and a signal receiving device. The mechanical sensing module is detachably mounted on a shock strut of a nose landing gear of an aircraft, and the rotary motion of the shock strut is converted into a linear displacement signal through a gear transmission mechanism in the mechanical sensing module; the signal processing module analyzes the displacement signal into a front wheel turning angle electric signal; and the signal receiving device receives and displays the angle value. The invention further discloses a corresponding monitoring method. The device adopts a modular and non-invasive design, solves the problems that the turning angle of the front wheel cannot be monitored in real time and the over-limit risk exists in the aircraft traction process, has the advantages of being convenient and fast to install, accurate in measurement and wide in applicability, and remarkably improves the safety and the working efficiency of flight guarantee.

The invention provides a profile plate mounting device which is used for adjusting the position of a first profile plate relative to a second profile plate, a rectangular hole is formed in the second profile plate, and the first profile plate penetrates through the rectangular hole. The linear displacement device comprises a shell, a linear displacement assembly and a limiting block. The linear displacement assembly is installed on the shell, a pushing top is installed at the displacement output end of the linear displacement assembly, and the displacement output direction is in the first direction. The limiting block is installed on the shell, a groove extending in the second direction is formed in the limiting block, and the opening direction of the groove is opposite to the advancing direction of the pushing ejector head; the first direction is perpendicular to the second direction. During use, one end of the pushing head is pushed to abut against the surface of the first profile plate, and the groove of the limiting block hooks one side of the rectangular hole of the second profile plate. According to the sectional material plate mounting device, the position adjustment of the sectional material plate can be completed through an independent device, the adjustment difficulty of the ship sectional material plate is reduced, the working load is reduced, the mounting efficiency of the ship sectional material plate is improved, and the danger of construction can be reduced.

The invention discloses a machine tool cutter head fault detection method and device, an electromagnetic type linear displacement sensor is arranged at the corresponding position of a machine tool cutter head, and the method comprises the steps that based on electromagnetic type linear displacement sensing, a displacement signal sequence of the machine tool cutter head is collected in real time; performing adaptive signal decomposition on the displacement signal sequence to obtain at least one first intrinsic mode component and one second intrinsic mode component; calculating a first energy value sequence of the first intrinsic mode component in the continuous time interval, and calculating a second energy value sequence of the second intrinsic mode component; based on the first energy value sequence and the second energy value sequence, the fault type of the machine tool cutter head is judged; the fault types comprise a tool bit deflection fault and a main shaft chip clamping fault. By adopting the electromagnetic linear displacement sensor and combining a self-adaptive signal decomposition technology, the interference of a complex industrial environment on detection is effectively overcome, and accurate distinguishing and reliable detection of a machine tool cutter bit deflection fault and a main shaft chip clamping fault are realized.

The utility model relates to mechanical adjusting equipment technical field especially relates to a universal adjusting electric sliding platform. Its technical scheme includes: base, adjusting mechanism, rotating mechanism and installation groove, the base inside is provided with installation groove, is provided with the rotating mechanism of gear drive in the installation groove, and is provided with multiple adjusting mechanisms on the rotating mechanism, and adjusting mechanism includes adjusting frame, and multiple adjusting frames between x, y and z axle settings, adjusting mechanism is driven screw rod and thread bushing cooperation through first drive motor, and the realization installation board is along the linear displacement of corresponding axle, rotating mechanism is driven transmission wheel and rotation gear engagement through second drive motor, and the movable connection of cooperation universal ball axle and rotating seat drives carousel rotation and multi -angle inclination, makes adjusting mechanism realize multi -angle rotation with carousel, through the cooperation of linear adjustment and universal rotation, can realize the compound adjustment of linear displacement and multi -angle rotation in three -dimensional space of load.

The utility model belongs to the technical field of barometers, and particularly relates to a barometer which comprises a meter shell, an air inlet, a meter cover, a dial plate and a pointer, the air inlet is arranged on the meter shell, air transmits pressure to a piston through the air inlet, the piston converts the air pressure into linear displacement, and the pointer is arranged on the meter shell. The piston transmits power to the gear output piece through the two-stage transmission mechanism, the gear output piece is connected with the pointer and drives the pointer to deflect on the dial plate, the piston is further connected with a reset piece, and the reset piece acts on the piston and provides pressure opposite to gas acting force. By means of a two-stage transmission mechanism composed of the double sector gears, the rack frame and the cylindrical gear, tiny linear displacement of the piston is amplified and converted into remarkable deflection of the pointer, the detection sensitivity of tiny air pressure changes is remarkably improved, the reading range is expanded, and reading is more accurate and visual.

The invention provides a linear encoder and a control system and method. The linear encoder comprises a carrier; the plurality of first conductive pieces extend along the first direction and are arranged on one surface of the carrier at intervals along the second direction; the first direction intersects with the second direction; at least one first conductive piece comprises two sub conductive pieces; the two sub-conductive pieces extend along a first direction and are arranged on one surface of the carrier at intervals along the first direction; the second conductive part is provided with a plurality of metal contact parts which are mutually spaced, so that at least two metal contact parts in the plurality of metal contact parts are conducted with the plurality of first conductive parts through the second conductive part under the condition that the plurality of metal contact parts are in sliding contact with the plurality of first conductive parts from the first point to the second point along the first direction; and the interval between the two sub-conductive pieces is between the first point and the second point. The linear encoder can be applied to a linear displacement scene and is used for measuring the absolute position of a linear displacement object.

The invention relates to the technical field of waste heat recovery, and discloses a power plant cooling water waste heat recycling device which comprises a cylinder. At least two hot water pipes; at least two water gathering rings; the dirt cleaning part comprises a cleaning belt, the cleaning belt wraps the heat exchange pipe through a limiting frame, the cleaning belt is driven by a driving mechanism, and the driving mechanism has driving force for driving the cleaning belt to be attached to the heat exchange pipe for circumferential transmission and linear displacement force for driving the cleaning belt to move in the radial direction of the heat exchange pipe; according to the design, through dual driving force of the driving mechanism, the cleaning belt is in circumferential fit transmission and radial movement along the heat exchange tubes, can be tightly attached to the outer walls of the bent and parallel heat exchange tubes and scrapes CaCO3 scale layers of all the tube sections, the cleaning problem of the heat exchange tubes of complex structures is solved, and the situation that dirt is attached to the outer walls of the heat exchange tubes, consequently, heat resistance is increased, and the service life of the heat exchange tubes is prolonged is avoided. And the heat exchange efficiency is reduced.

The utility model relates to a clutch handle for rapid stay wire adjustment, which comprises a handle connecting seat, a handle, a stay wire joint and an adjusting nut, a rotary mounting part is arranged at one end of the handle connecting seat far away from the handle, the adjusting nut is rotatably connected onto the rotary mounting part, and the stay wire joint is in threaded connection with the inner wall of the adjusting nut and rotates along with the adjusting nut. The adjusting nut and the handle connecting seat form a revolute pair through the rotary mounting portion, so that the adjusting nut can freely rotate around the axis of the rotary mounting portion, and the stay wire connector is embedded into the inner wall of the adjusting nut in a threaded fit mode. Threads on the inner wall drive the stay wire connector to generate linear displacement in the axial direction (namely the direction parallel to the axis of the rotary installation part), so that the telescopic position of the stay wire connector is directly changed, and linear adjustment of tensioning or loosening of the stay wire is achieved.

The invention discloses a wide-range absolute type linear displacement sensor based on photoelectric linear coding and a measuring method. The upper surface of a sizing base body is provided with a row of excitation electrodes and covered with a light absorption insulating layer covering all the excitation electrodes, and the light absorption insulating layer is provided with two columns of reflective patterns; and the two columns of reflective patterns are different and coprime in quantity. The area corresponding to the unit length of each reflective pattern changes in a function relation mode in the length direction. The lower surface of the movable ruler base body is provided with an induction electrode, a light-emitting module and two rows of photoelectric sensors, the two rows of photoelectric sensors directly face the two rows of reflective patterns, and the number of each row of photoelectric sensors is two. The light emitting module sends light beams to the two columns of reflective patterns, and the photoelectric sensor collects light intensity reflected by the reflective patterns and outputs obtained photoelectric signals to the signal processing circuit. The photoelectric sensing principle is adopted for rough measurement, the transverse size of the sensor can be greatly reduced, fine measurement and rough measurement do not interfere with each other, the measurement precision is high, and implementation is easy.

The invention belongs to the technical field of track detection equipment, discloses a wheel set lifting and leveling device of a vehicle wheel set full-size measuring machine, and solves the problems that in the prior art, the wheel set lifting precision is insufficient, and the reference height cannot be accurately determined. The device comprises a movable box body, a lifting mechanism, a wheel set supporting and driving mechanism, a lifting displacement detection mechanism and a rim measurement mechanism, the lifting mechanism drives a lifting frame to ascend and descend through a lifting oil cylinder, a linear displacement sensor detects lifting displacement in real time, it is guaranteed that the heights of four driving wheels are consistent, and horizontal lifting of a wheel set is achieved; the wheel rim measuring mechanism accurately measures and calculates the diameter of a wheel rim through a three-point method in cooperation with a displacement sensor, the height of the center line of a wheel set is determined, and unification of measuring references is achieved. The device is compact in structure, high in lifting and leveling precision and stable in detection data, can greatly improve the accuracy of full-size measurement of the motor train unit wheel set, and meets the use requirements of a mobile measuring machine.

The invention relates to a distributed electric drive system and a control method thereof. The distributed electric drive system comprises a first output assembly; a second output assembly; the gear sleeve assembly comprises a meshing sleeve, a sliding sleeve and a gear sleeve spring; the executing mechanism is connected with the gear sleeve assembly; the first displacement detection assembly is configured to detect the linear displacement of the sliding sleeve and generate first displacement; the second displacement detection assembly is configured to detect the linear displacement of the meshing sleeve and generate second displacement; the controller is configured to control the executing mechanism to drive the gear sleeve assembly to move; and the controller is configured to control the first output assembly and / or the second output assembly to increase the output torque when the first displacement is greater than or equal to a first threshold value and the second displacement is greater than or equal to a second threshold value. According to the method, the accuracy of judging whether the power on the two sides is successfully coupled or not can be improved, the misjudgment phenomenon is avoided, the whole control process is quick in response, hysteresis does not exist, and then the probability that the vehicle gets out of trouble can be improved.

The invention provides a three-redundancy LVDT (Linear Variable Differential Transformer) consistency adjusting device, and belongs to the technical field of airborne servo sensors. The connecting plate is used for fixing the LVDT rotor; the three springs are respectively arranged on the three LVDT rotors in a sleeving manner; a housing; a pressing plate; the three adjusting ejector rods are used for adjusting the positions of the three LVDT stators; and the three scribing turntables are fixed to the three adjusting ejector rods respectively and used for determining the adjusting distances of the three adjusting ejector rods, angle scales are engraved on the outer sides of the side plates, indicating lines are arranged on the scribing turntables, and the indicating lines are matched with the angle scales to read the rotating angles of the adjusting ejector rods. According to the adjusting device, linear displacement is converted into angular displacement, angle scribed lines and screw pitch conversion, accurate quantitative adjustment of the consistency of the three-redundancy LVDT is achieved, and the output precision of the three-redundancy LVDT is improved.

The utility model relates to the technical field of bipolar plate press machines, in particular to a dynamic error control and compensation mechanism of a bipolar plate press machine, which comprises a main servo motor direct drive transmission gear shaft and a driven eccentric gear, a connecting rod mechanism adopts a toggle rod type structure and comprises a connecting rod, a corner bracket and a lower connecting rod, and the lower connecting rod is connected with a sliding block adjusting screw rod. A sliding block adjusting servo motor drives a worm and a worm gear transmission mechanism, an adjusting nut structure is arranged in a worm gear and forms a connecting pair with an adjusting screw rod, the worm gear rotates to drive the sliding block adjusting screw rod to move up and down so as to adjust the die height of the sliding block, and the sliding block is provided with an inductance type linear displacement sensor. The main servo motor and the sliding block adjusting servo motor are connected with the displacement sensor through the PLC, the mold closing speed and the mold closing position of the mold are monitored and accurately controlled in real time, high-precision adjustment of mold closing of the mold is achieved, and the position of a bottom dead center can be accurately controlled and compensated in real time.

The automobile ornament electroplating device with the good safety comprises a bottom plate, an electroplating pool, a hot air dryer and a collecting disc, the electroplating pool is connected with the bottom plate, the hot air dryer is arranged on the side, away from the electroplating pool, of the bottom plate, the collecting disc is arranged between the electroplating pool and the hot air dryer, and the collecting disc is connected with the bottom plate. Through cooperative work of the linear displacement device and the dislocation translation device, the hanging rack device can be stably driven to linearly move between the electroplating pool and the collecting disc, the linear moving path is the shortest path, and in the moving process of the hanging rack device, the hanging rack device is not prone to falling off. The flow guide plate can guide electrolyte dripped from the hanger device and the workpiece into the electroplating pool and the collecting disc respectively, so that the electroplating liquid carried by the hanger device and the workpiece is effectively prevented from dripping on the outer side of the automobile ornament electroplating device; the technical problems that waste is caused by spattering of the electroplating liquid, and the working environment of the automobile ornament electroplating device is affected badly are solved.

The invention discloses a dynamic and stable warp tension output device of a weaving machine, which relates to the technical field of textile machinery and comprises a rack, pan head shafts used for placing warp pan heads are rotatably connected onto the rack, and the pan head shafts are arranged at intervals; the resistance disc is rotationally installed in the rack and located on one side of the disc head shaft; the mounting brackets are detachably and symmetrically mounted on the side wall of the rack; the two ends of the fixed roller are rotationally connected between the two mounting brackets; the tension assembly comprises a pair of rotating plates rotationally mounted on the outer side of the mounting bracket through a pin shaft, and a tension roller and a guide roller which are rotationally connected between the two rotating plates; a resistance rope is fixed on the guide roller, and the other end of the resistance rope bypasses the resistance disc and the fixed roller and is wound on the tension roller. By utilizing the characteristic of high transmission precision of the screw rod, rotary motion is converted into accurate linear displacement, so that the pre-tightening force of the spring can be slightly and controllably adjusted, and the tension adjusting precision and the adjusting stability are improved.