1931 results about "Limit switch" patented technology

Provided in the present disclosure are a roller shutter tail cover and a roller shutter cover with the same. The roller shutter tail cover includes a cover body, a limit switch, and a limit device, where the limit switch is disposed on the cover body, and the limit device is connected to the limit switch. During motion of the roller shutter tail cover, when the limit switch is touched, the limit switch starts the limit device, and the limit device works to limit the motion of the roller shutter tail cover. During motion of the roller shutter tail cover, if the roller shutter tail cover touches other objects, the limit switch starts the limit device, and the limit device limits the motion of the roller shutter tail cover, thereby preventing the roller shutter tail cover from pinching other objects and lowering the safety risk.

The invention relates to a bidirectional automatic seedbed and potted flower transfer device and method. The bidirectional automatic seedbed and potted flower transfer device comprises a conveying mechanism, a lifting mechanism, a push-pull mechanism, a grabbing mechanism, a conveying mechanism and a control system. The conveying mechanism comprises a seedbed frame, a motor, a chain, a transverse conveying supporting wheel and a chain wheel, the lifting mechanism comprises an air cylinder, a telescopic rod and a supporting rod supported on an air cylinder shaft and the telescopic rod, the push-pull mechanism comprises a push plate, a small air cylinder, a moving frame, a rail and a motor, and the grabbing mechanism comprises a portal frame and a mechanical arm. The conveying mechanism comprises a guide frame, an angle iron rail and a belt conveyor; the control system comprises a controller, a limit switch, a proximity switch, a magnetic reed switch and a photoelectric counter and is used for monitoring the position of the seedbed, accurately starting and stopping the seedbed and counting flowers. Bidirectional orderly automatic transfer of potted flowers entering and moving out of a cultivation greenhouse can be achieved, the working efficiency is improved, and the labor intensity is reduced.

The invention relates to the technical field of safety limit switch testing, in particular to a safety limit switch testing method, system and device and a medium. The method comprises the steps that firstly, model information of a to-be-tested switch is acquired, and test parameters are called from a preset evaluation model; by analyzing historical test data of elevator switches of the same batch, a test sequence of actual action point dispersion analysis and target interval dense sampling is established, and a reference action point and a sampling frequency are determined; the system drives the limit switch to move according to the called reference action point and the sampling frequency, the actual action point of the switch is measured, and the system carries out reciprocating motion test at the position of the actual action point to obtain action stability data; meanwhile, high-frequency continuous sampling is carried out in a switch on state to obtain time sequence changes of on-resistance values; and finally, according to the time sequence characteristics of the on-resistance and a preset calculation method, calculating a switch performance index, generating a test result and printing a unique SN label, thereby realizing whole-course tracing of the product.

The utility model relates to the technical field of food processing, in particular to an automatic dough mixer which comprises a rack and further comprises a dough hopper, a stirring mechanism, a dough mixer, a dough mixer and a control system, one end of the flour hopper is connected with a worm gear which is meshed with a horizontal worm, and one end part of the worm is connected with a tipping bucket belt wheel; the switch baffle is fixedly mounted at the upper end of the side of the worm gear; the two limiting switches are installed on the machine frame and comprise the limiting switch a and the limiting switch b, the limiting switch a and the limiting switch b are located on the two sides of the switch blocking piece respectively, and when the switch blocking piece makes contact with the limiting switches, the noodle hopper stops overturning; the proximity switch catch is fixedly mounted at the lower end of the side of the worm gear; the two proximity switches are respectively a proximity switch a and a proximity switch b, the proximity switch a and the proximity switch b are fixed on the arc-shaped mounting plate, and after the proximity switch separation blade is in contact with the proximity switches, the noodle hopper stops overturning. According to the utility model, the overturning and aligning of the flour hopper can be accurately controlled.

The invention relates to the field of energy storage loop monitoring, and particularly discloses an innovative energy storage loop system for an operating mechanism of a medium-voltage switch cabinet, which realizes soft start and contactless control of an energy storage motor by introducing a dynamic motor control circuit. The multistage stroke detection device replaces a mechanical limit switch, provides real-time and continuous position monitoring for the energy storage mechanism, and thoroughly eliminates feedback lag and inaccuracy. The core energy storage state analysis unit can identify abnormal working conditions in the energy storage process in real time through intelligent acquisition, analysis and decision making of signals. Besides, the power supply unit provides a stable operation basis, and the bidirectional communication interface ensures information interaction between the system and the external environment, so that an intelligent energy storage ecological system with controllable closed loop, feedback of state and early warning of fault is jointly constructed, and the response speed and the operation stability of the medium-voltage switch cabinet operating mechanism are comprehensively improved.

The invention discloses a transformer coil winding device which comprises a winding machine body, a knocking device, a pressing device and an auxiliary rod, and an iron core is arranged on the winding machine body; the flat copper conductor penetrates through the winding machine body and is wound on the iron core; the knocking device is arranged on the winding machine body; the pressing device comprises a rotating shaft, an elastic pressing structure, a first spring and a driving structure, and the rotating shaft is arranged on the winding machine body and connected with the driving structure; the elastic pressing structure is arranged on the rotating shaft in a sliding manner; the two first springs are arranged on the two sides of the elastic pressing structure correspondingly. The auxiliary rod is arranged above the pressing device, limiting switches are arranged at the two ends of the auxiliary rod respectively, and the pressing structure makes contact with the limiting switches when moving. According to the application, the flat copper wires are knocked through the knocking device, so that the flat copper wires are more attached to the surface of the iron core, the flat copper wires can be dynamically pressed through the pressing device, the flat copper wires wound on the iron core are tighter, and the electrical performance is improved.

The utility model relates to a multifunctional construction operation vehicle which comprises a vehicle body and a carriage, a traffic cone storage device and a collecting and releasing device are arranged in the carriage, and the traffic cone storage device comprises a transportation mechanism and a support. The conveying mechanism comprises a conveying chain, and the support is fixedly connected with the conveying chain. A plurality of layers of supports are arranged in the vertical direction, a plurality of traffic cones which are horizontally stacked can be placed on each layer, the supports and the conveying chains can support the conical parts and the base parts of the traffic cones on the bottommost layer respectively, and an empty limit switch and a full limit switch are arranged at the front end and the rear end of the conveying mechanism. And the bracket is provided with a switch shifting plate corresponding to the empty limit switch and the full limit switch.

The invention discloses a cleaning mop overturning mechanism with clutch and limit switch functions, and relates to the technical field of commercial cleaning robots, the cleaning mop overturning mechanism comprises a main body, a rotating mechanism is arranged on the main body, the rotating mechanism is connected with a mop swing arm through a rotating shaft, the other end of the mop swing arm is provided with a mop assembly, and the mop assembly is connected with the main body. A driving mechanism capable of driving the rotating mechanism to rotate is arranged on the main body, and a limit switch triggering piece and a clutch are arranged on the rotating mechanism. The cleaning robot has the beneficial effects that the up-and-down smooth overturning mechanism of the mop mechanism realizes that the cleaning robot is in a working state and a non-working state, and a motor for controlling the mop to overturn due to the position change of the mop does not cause permanent damage to a telephone in a stuck state.

The invention discloses an automatic protective door device for a cylinder of a vertical machining center, which relates to the technical field of machine tools and comprises a protective door arranged at an opening of a protective room in a sliding manner; the air cylinder transmission assembly is arranged above the protective door and comprises a three-position five-way middle-discharging electromagnetic valve and a telescopic air cylinder, an exhaust hole is formed in one end of the three-position five-way middle-discharging electromagnetic valve, the other end of the three-position five-way middle-discharging electromagnetic valve is connected with the telescopic air cylinder, and the output end of the telescopic air cylinder is connected with the protective door; the limiting switch assembly is arranged above the protective door and comprises a pair of limiting switches and a limiting block, the limiting block is arranged on the protective door, when the protective door reaches the door opening position, the limiting block abuts against one limiting switch, and when the protective door reaches the door closing position, the limiting block abuts against the other limiting switch; the control unit is in control connection with the two assemblies; the device solves the problems that the cylinder protection automatic door is loosened and easy to damage, the door opening and closing signal acquisition is unsafe and inaccurate, and the power-off operation and maintenance are difficult.

The invention relates to the technical field of stability tests in optical systems, in particular to an omni-directional adjusting mechanism suitable for a welded corrugated pipe in an optical system, which comprises a vacuum cavity, a plurality of connecting pipes are uniformly mounted outside the vacuum cavity, and one end, far away from the vacuum cavity, of each connecting pipe is fixedly connected with a connecting flange plate; a welding corrugated pipe body is fixedly connected to the connecting flange plate through bolts, optical equipment is fixedly installed at the end, away from the vacuum cavity, of the welding corrugated pipe body, and a limiting mechanism is arranged on the welding corrugated pipe body. When the welded corrugated pipe is excessively twisted, a limiting switch is used for generating signal feedback, a six-axis adjusting platform conducts reverse adjustment, the situation that a welded corrugated pipe body exceeds the yield limit is avoided, integrated synchronous locking of a plurality of second locking screws is achieved through a tightening assembly, and the problem of eccentricity caused by inconsistent tightening degrees is avoided.

The present invention discloses a brick transfer device for a brick paving machine, which consists of a brick clamping mechanism and a grabbing trigger switch; the brick clamping mechanism comprises a first horizontal moving mechanism horizontally spanned above a material table and a first brick conveyor belt, and two groups of vertical moving mechanisms are connected to its bottom; two groups of second horizontal moving mechanisms are arranged on a connecting beam between the two groups of vertical moving mechanisms, and two clamping grasps are arranged at the bottom of both; the grabbing trigger switch comprises a switch device body and a trigger mechanism; the switch device body comprises a limit switch arranged in a protective shell; the trigger mechanism comprises a base bracket and a trigger bracket; the base bracket is rotatably connected to the protective shell to rotate a collision contact; the trigger bracket is rotatably connected to the bottom end of the base bracket, and a synchronization plate is arranged in its triggering direction; while the device completes the transfer of each row of brick groups on the material table to the first brick conveyor belt, its grabbing trigger mechanism can also effectively avoid false triggering activities and avoid damage to the trigger mechanism.

According to the integrated gate position and limit acquisition method and device, linear motion of the gate is converted into rotation of the gears through the accurate transmission ratio between the gears, then tiny displacement changes are amplified or reduced, the sensitivity and accuracy of gate position monitoring are improved, and the problem that a traditional device is not high in precision is solved. The position of the gate is adjusted according to the height and actual requirements of the gate, a traditional gate level meter and a limiting switch are combined to form an integrated device, the transformation ratio gear, the PLC and the resistance strain type linear displacement sensor work cooperatively, all-directional and high-precision monitoring and control over the position of the gate are achieved, and the safety of the gate is improved. The integrated design not only reduces the size and complexity of the device, but also improves the stability and reliability of the device by optimizing the connection and communication among the parts, and in the aspect of installation, the integrated design enables the overall structure of the device to be more compact, and reduces the installation steps and required space.

The invention discloses a trigger type low-power-consumption awakening valve opening and closing state online monitoring system, and relates to the technical field of petroleum drilling and production equipment safety, and the system comprises a valve state monitor, a data acquisition and distribution module, a cloud platform and a monitoring terminal; the valve state monitor comprises a limit switch, a main control chip and a Zigbee communication module. Two low-power-consumption modes, namely a power-down mode and a shutdown mode, of the main control chip are adopted, two external interrupts are provided, and the chip can be awakened by the rising edge and the falling edge of the external interrupts. The low-power-consumption Zigbee communication module is used as a dormant terminal, when data needs to be sent, the main control chip pulls down the pin awakening module and sends the data, after sending is completed, the pin is pulled up, the module continues to be dormant, and the low power consumption is further reduced. Therefore, the valve state monitoring instrument can be used for a long time, and the service life of state monitoring equipment is prolonged. In consideration of the requirements of low power consumption and transmission distance, Zigbee communication is used as wireless communication.

The invention provides an automatic windproof zipper device of a grab ship unloader, and belongs to windproof devices of ship unloaders. The device comprises an automatic windproof zipper structure and a driving mechanism, the automatic windproof zipper structure comprises an upper pull rod, a bracket, a limit switch, a lower pull rod and a zipper seat, the automatic windproof zipper device is arranged on a sill beam of the ship unloader, the upper portion of the automatic windproof zipper device is connected with lifting lugs on the two sides of the sill beam, and the zipper base is installed on the wharf ground through flange bolts. The upper pull rod is connected with the driving mechanism through a flange bolt, and the driving mechanism is connected with the lower pull rod through a flange bolt; the other end of the lower pull rod is inserted into the zipper seat; a bracket is also arranged on the upper pull rod; and a limit switch is arranged between the upper pull rod and the lower pull rod. According to the device, various problems of tedious manual operation, long operation time and the like of grab ship unloader equipment are solved; the lifting, falling and tensioning positions of the automatic windproof device are detected through limiting, and the positions are accurate.

The present invention discloses a timed automatic cabinet door closing device, comprising a cabinet body and a cabinet door, wherein the cabinet door is rotatably connected to the cabinet body, a rotating kit for closing the cabinet body is provided in the cabinet body, the rotating kit is fixedly connected to the cabinet body through a fixing frame, the rotating kit comprises a driving motor, a reel, a transmission belt, and a clutch device, the fixed end of the reel is rotatably connected to the fixing frame, one end of the transmission belt is fixedly wound around the reel shaft body, and the other end is fixedly connected to the inner side of the cabinet door; when the driving motor is working, the output shaft of the driving motor is connected to the free end of the reel through the clutch device; when the driving motor is not working, the clutch device has no transmission connection with the reel; a limit switch and a timing device connected to the control circuit of the rotating kit are also provided in the cabinet body.

The invention discloses a pastry forming machine convenient to demould. The device comprises a base, and a lower die capable of moving up and down through a lower die lifting device and an upper die capable of moving up and down through an upper die lifting device are arranged on the base; the lower die lifting device comprises a power device which is installed on the side face of the base and provided with a telescopic rod, and the telescopic rod is connected with a push plate with a guide inclined face on the upper surface. A guide stand column is arranged at the bottom of the lower die and makes contact with the guide inclined face. The device has the advantages that the whole lower mold is lifted and descended through the contact and position relation change of the guide stand columns and the guide slopes, the structure is compact and simple, the lower mold is taken out and replaced more easily, the demolding process is more convenient, and the efficiency is greatly improved; due to the limiting switches which are oppositely arranged inwards in the vertical direction, the upper mold can automatically stop after reaching the preset position, the positions of the limiting switches are adjustable, the requirements for making various different pastries can be better met, and the adaptability is higher.

The utility model relates to a limit protection device of a dry quenching elevator, which belongs to the technical field of coking dry quenching equipment and is used for protecting the limit of the dry quenching elevator. According to the technical scheme, a base is a rectangular plate, a fixing support is perpendicularly welded to the plate face of the base, an adjusting movable plate is connected with the fixing support through an adjusting fastening bolt, a limiting fixing plate is perpendicularly welded to the front end of the adjusting movable plate, and a U-shaped limiting plate is fixed to the plate face of the limiting fixing plate through a limiting fixing bolt; the two upper limiting guide plates and the two lower limiting guide plates are located on the two sides of the U-shaped limiting device respectively and are perpendicularly connected with the plate face of the limiting fixing plate in a welded mode respectively, and the upper limiting guide plates and the lower limiting guide plates on the two sides of the U-shaped limiting device respectively form two V-shaped guide grooves. The elevator limiting device is simple in structure and reliable in work, the elevator can be protected from being damaged due to the fact that the elevator is scratched by the running elevator, safety and equipment hidden dangers are effectively eliminated, and normal running of the elevator is guaranteed.

An anti-fall mechanism and a lifting transport apparatus are disclosed. The anti-fall mechanism includes a conveying platform, a linkage, an elastic mechanism, a limit switch and a self-locking mechanism. The conveying platform is installed on a lifting belt. The linkage includes a first coupler, a second coupler and two rockers, where two ends of the first coupler are rotationally coupled to two ends of the second coupler, respectively, via the rockers. The elastic mechanism is arranged between the conveying platform and the lifting belt, where one end of the elastic mechanism is connected to the first coupler, and the other end of the elastic mechanism is pressed by the lifting belt. The limit switch is arranged on the second coupler. The self-locking mechanism is arranged on the conveying platform and capable of locking and securing the conveying platform to a frame of the lifting transport apparatus.

The utility model relates to an elevator steel wire rope swing protection device which comprises a fixing assembly installed on an elevator car and provided with a limiting switch. The guide device is mounted on the fixing assembly; the movable assembly is installed on the guide device and can move in the direction close to the fixed assembly under the guide of the guide device, and the steel wire rope moves in the movable assembly in the vertical direction; when the swing amplitude of the steel wire rope is larger than a threshold value, the movable assembly is pushed to make contact with the limiting switch, and the limiting switch is triggered. The elevator steel wire rope swing protection device can effectively monitor the swing conditions of the steel wire rope under various working conditions in a super high-rise building, and measures can be taken to protect elevator parts when the swing amplitude is large.

The utility model belongs to the technical field of construction safety ropes, and particularly relates to a safety rope fixing structure for building construction, which comprises an anti-falling fixing box, a locking structure for fixing a safety rope is arranged in the anti-falling fixing box in a limiting and sliding manner, and a fixing and locking table is mounted on one side of the locking structure. The other side of the locking structure is in driving connection with a movable locking table sliding on the locking structure through an electric telescopic rod, and the bottom of the locking structure is connected with a clamping convex block and a clamping concave block through telescopic springs. The locking structure moves downwards along the limiting guide rod under the pulling force of the safety rope, the electric telescopic rod is started through the contact type stroke limiting switch to drive the movable locking table to be matched with the fixed locking table, the safety rope is seized through the locking block and cannot slip off, and then the locking protection effect on the safety rope is achieved; and meanwhile, the clamping convex block and the clamping concave block slide downwards along the inclined guide sliding table and are mutually extruded and close to each other, the safety rope is firmly locked through the clamping convex strip, and the safety guarantee capacity of constructors is improved.

The invention discloses an intelligent material cabinet and a safe and accurate material distribution method. The intelligent material cabinet further comprises an anti-theft unit, a material recognition unit and a safety interlocking mechanism on the basis of a conventional cabinet body. The anti-theft unit seals a blue opening by arranging a long turning plate and a short turning plate at the blue opening of a lifting blue and is linked with a material taking turning plate of a material taking opening; the material identification unit is provided with an intelligent camera, a wide-angle camera and a pressure sensor for detecting material information; the safety interlocking mechanism is provided with a limiting switch, an electronic bolt door lock and a material taking indicator lamp, and limiting of the lifting basket, locking of a material taking opening material taking turning plate and material taking prompting are achieved. According to the method, safe and accurate material distribution is achieved through material management, material identification and safety linkage. According to the material cabinet and the method, the defects of traditional material warehouse management are overcome, the accuracy of material distribution and the anomaly detection processing capacity are improved, the vulnerability of theft is eradicated, the safety of material extraction operation is ensured, and then the adaptability, automation and intelligence of material warehouse management are improved.

The utility model relates to the technical field of conveyors, in particular to a steel wire rope tensioning device in a telescopic system of a telescopic movable conveyor, which comprises a movable truss, a fixed truss, a movable frame, a fixed frame, a pressing rod, a spring, a screw rod, a locking nut, a guide shaft, a guide rail, a limit switch, a fixing nut, a cylindrical pin and a safety baffle, a telescopic system is mounted between the movable truss and the fixed truss and comprises a hoisting mechanism, a steel wire rope I, a steel wire rope II, a pulley I, a pulley II, a pulley III, a guide wheel and a steel wire rope tensioning device; two steel wire ropes can be tensioned at the same time, the two steel wire ropes can keep pretightening force needed by the sagging degree requirement of the steel wire ropes within the adjusting range of the spring through the action of the spring, and automatic looseness prevention is achieved; the spring can push the pressing rod to trigger the limiting switch to feed back signals to the control system and prompt maintenance, and the operation stability of the telescopic system is improved.

The invention provides a cam limiting external fixing spiral clutch device for lifting opening and closing of a grab ship unloader, and relates to the technical field of bulk cargo wharf grab ship unloaders, which comprises a pinion in clearance fit with a planetary reducer shaft, a bull gear connected with a cam limiting switch through a bolt, and an adjusting bolt in threaded fit with a shaft hole at the end part of the pinion. A shaft shoulder unthreaded hole is formed in the center of the planetary reducer shaft to limit axial movement of the adjusting bolt. The small gear is driven to slide in the axial direction by twisting the adjusting bolt so as to be meshed with or separated from the large gear, the adjusting bolt is reversely rotated before rope replacement to enable the gear to be separated, the large gear is prevented from being driven by rotation of the small gear, and therefore the cam limiting switch shaft is fixed; after the rope is replaced, the gears are meshed through reverse rotation again, and connection is recovered. The device is simple in structure, realizes fixation and reconnection of the limit switch shaft through mechanical transmission, does not need manual disassembly, assembly and debugging, saves manpower and time cost, is low in failure rate, and is suitable for the scene of replacing the steel wire rope of the four-drum grab ship unloader.

The utility model discloses an operation and maintenance device for a liquid cooling server. The operation and maintenance device comprises a liquid cooling cabinet, a lifting driving assembly, the liquid cooling server and a limit switch, the lifting driving assembly and the liquid cooling server are movably arranged in the liquid cooling cabinet; the limiting switch is arranged in the liquid cooling cabinet and located above the lifting driving assembly and the liquid cooling server, gaps are formed between the limiting switch and the lifting driving assembly and between the limiting switch and the liquid cooling server, and the limiting switch is electrically connected with the lifting driving assembly; the liquid cooling server is connected to one end of the lifting driving assembly; and when the liquid cooling server breaks down, the lifting driving assembly drives the liquid cooling server to lift and move, and the lifting driving assembly stops driving the liquid cooling server to lift and move until the lifting driving assembly and / or the liquid cooling server abut against the limiting switch. The operation and maintenance personnel can quickly position the abnormal liquid cooling servers and perform operation and maintenance, so that the step of taking out the liquid cooling servers one by one for inspection is omitted, the operation complexity is reduced, and the operation and maintenance efficiency is improved.

An aerial work platform, and a method and apparatus for safety control of an aerial work platform, said method comprising: determining whether a work platform (100) is located at an upper limit position or a lower limit position; acquiring a first angle value of a scissor frame (200) corresponding to the upper limit position, and using the first angle value as an upper limit calibration value; or acquiring a second angle value of the scissor frame (200) corresponding to the lower limit position, and using the second angle value as a lower limit calibration value; acquiring a current angle value of the scissor frame (200) and a current inclination angle value of a chassis (300); and, on the basis of the current angle value of the scissor frame (200) and the current inclination angle value of the chassis (300), determining an angle compensation value for the work platform (100), and, on the basis of the difference between the angle compensation value and the upper limit calibration value or the lower limit calibration value, determining a limit position of the work platform (100). Thus, a limiting structure or a limiting switch can be replaced for limiting, operation is intelligent, the reliability is high, and fault alarms caused by a stroke switch being stuck can be prevented, so as to save operation costs.

The invention provides a cam limiting internal fixing spiral clutch device for lifting opening and closing of a grab ship unloader, which relates to the technical field of bulk cargo wharf grab ship unloaders and comprises a pinion in clearance fit with a planetary reducer shaft, a cam limiting switch in bolted connection with a bull gear and an adjusting bolt. An end shaft hole of the pinion is provided with internal threads, a threaded hole is formed in the center of a planetary reducer shaft, and the adjusting bolt is matched with the threaded hole; the small gear is driven to slide in the axial direction to be engaged with or disengaged from the large gear by rotating the bolt cap. When the steel wire rope is replaced, the disengagement gear can avoid contact deviation caused by rotation of the cam limit switch shaft; the gear is directly meshed after the rope is replaced, and secondary contact adjustment is not needed. The structure of the device adopts a pure mechanical mode, operation is simplified, stability is high, and debugging time of about one day is saved for single maintenance.

The invention provides a high-power line-driven mechanical arm and a control method thereof.Two driving motors are connected with two rope winding mechanisms correspondingly, rope tightness limiting switches are arranged at the front ends of the rope winding mechanisms, a driving motor control line and a tightness limiting switch signal line are connected to an embedded control system, and the two rope winding mechanisms pull the same load oppositely; the dual-drive motor drives the two winding drums to wind or unwind ropes so as to achieve load dragging. When the embedded control system detects that the limit switch is triggered, the rope releasing speed is automatically adjusted so as to tension the driving rope; the angle encoder measures the joint angle; according to the rope-driven mechanical arm, only the tightness limiting switch needs to be installed at the rope winding and unwinding end, the feedback requirement of the mechanism for the motor is reduced, and the problem that the driving rope is loosened in the rope-driven mechanical arm is effectively solved.

The invention discloses an automatic control system for a railway curved line wheel-rail lubrication device, which relates to the technical field of railway maintenance, and includes an oil pump assembly, a driving mechanism, a sensing piece, an extension limit switch, a retraction limit switch, a PLC, and a photoelectric sensing switch; the oil pump assembly includes an oil storage tank and a piston rod; an oil storage cavity is provided inside the oil storage tank; the driving mechanism can drive the piston rod to reciprocate, and squeeze the grease in the oil storage cavity out of the oil storage cavity; the sensing piece is fixedly connected to the driving mechanism or the piston rod, the extension limit switch corresponds to the extension limit position of the piston rod, and the retraction limit switch corresponds to the retraction limit position of the piston rod; the PLC can control the driving mechanism to rotate forward or reverse; the sensing piece is used to limit the moving position of the piston rod between the extension limit switch and the retraction limit switch; and the photoelectric sensing switch is used to detect that the locomotive vehicle passes through the detection area. The advantages of the invention are: it can realize intelligent automatic operation.

An aperture assembly for use with a subsurface ejection vessel includes an electromagnet, a first dynamic aperture, a second dynamic aperture, a hollow shaft injection drill bit, a third dynamic aperture, collar perforations, and closed window apertures. The electromagnet actuates a closing of the first dynamic aperture. The electromagnet actuates an opening of the second dynamic aperture. The third dynamic aperture dynamically opens when triggered by a first pre-determined depth achievement counting by the encoder of the lead screw or distance traveled by a platform (505A) triggered by the limit switch that are communicated to the AI robot, the computer, and the PLC. The third dynamic aperture dynamically opens when the camera lens has a second pre-determined depth penetration of the hollow shaft injection drill bit and that the limit switch information is communicated to the computer, or the PLC.

The invention provides a textile fabric winding device, and relates to the technical field of fabric processing, the textile fabric winding device comprises a fabric winding device body, a plurality of contact type thickness control mechanisms are rotatably mounted on the inner side of the fabric winding device body, each contact type thickness control mechanism comprises a threaded rod, and a connecting plate is mounted on the circumferential surface of each threaded rod in a threaded manner; a side plate is fixedly installed on the side wall of each connecting plate, a limiting switch assembly is installed in each side plate in an embedded mode, the limiting switch assemblies are arranged on the side plates, the thickness of the winding drum can be increased along with winding of cloth of the winding drum, and when the thickness is increased to meet the technological requirement, the limiting switch assemblies are arranged on the limiting switch assemblies. The cloth wound by the winding drum can extrude the limiting switch assembly, so that the limiting switch assembly can send a signal to the control unit in time, and the control unit controls the driving unit to stop; the problem of insufficient winding quality caused by large difference between the winding size and the winding size required by the process can be avoided, and the winding quality is improved.