382results about How to "No skew" patented technology

A frame of large pellicle comprising a polygonal frame having a plurality of sides, a pellicle film bonded to the upper edge surface of the frame, and an adhesive material applied on the lower edge surface of the frame wherein upon grasping the frame of a large-sized pellicle the longest side of which frame is 1m or longer, the frame has protrusions or recesses for grasping on all sides of the frame. The frame is grasped surely by grasping the protrusions or recesses for grasping at at least one position or more on each side of the frame simultaneously, and the pellicle can be taken out easilyfrom a container without causing distortion or flexure when it is stuck on a photomask, or the like.

The invention relates to the field of machining, in particular to an automatic chip feeding device for printed circuit board welding. The automatic chip feeding device comprises a base, and further comprises a feeding mechanism, a clamping mechanism and a material moving mechanism, wherein the feeding mechanism comprises a conveyor and a pushing and separating assembly; the material moving mechanism comprises a driving assembly, a feeding assembly, a pushing assembly and two symmetrically-arranged guide rails, wherein the two guide rails are both arranged right above the base through first supporting rods, the driving assembly is vertically arranged between two workbenches through a first fixing plate, the pushing assembly is horizontally arranged at the end, close to the pushing and separating assembly, of one of the workbenches, and is perpendicular to the workbenches; and the feeding assembly is horizontally arranged at the end, close to the workbenches, of the pushing assembly through a first supporting plate and is perpendicular to the workbenches. The automatic chip feeding device for printed circuit board welding has the advantages that the structure is simple, the use is convenient, the automation degree is high, the fatigue degree of workers is reduced, and the production efficiency is improved.

The invention discloses a cascade connected thyristor valve section in jacking connection, which comprises a framework, wherein one end of the framework is provided with an elastic clamping device while the other end is provided with a jacking device, a valve bank consisting of thyristors and heat radiators are arranged alternately between the elastic clamping device and the jacking device, the cascade connected thyristor valve section in jacking connection has a horizontal structure, the heat radiators in the horizontal valve section are positioned and hung in the framework through tension springs connected between the heat radiators and valve section fixing plates, and positioning pins aiming at the thyristors are fixed on two lateral surfaces of each heat radiator along the axial direction of the valve section respectively; and the positioning pins make the thyristors and the heat radiators concentric. By adopting the structure, the central connecting lines of the heat radiators and the thyristors are coincided with the central line of the valve section through the positioning pins on the tension springs and the heat radiators in the horizontal cascade connected thyristor valve section in jacking connection, the stress of each thyristor is ensured to be even, and the mechanical stability of the whole valve section is improved.

The invention discloses an inclination detection device for a tubular pipe and an inclinometer tube centring and locating assembly thereof. The inclination detection device for the tubular pipe comprises an inclination detection reading device, an inclination detection probe, the inclinometer tube and a cable used for lifting and pulling the inclination detection probe, and further comprises the inclinometer tube centring and locating assembly, wherein the inclination detection probe slides along a tubular groove in the inclinometer tube through rollers; and the inclination detection probe is connected with the inclination detection reading device through the cable. The inclinometer tube centring and locating assembly is characterized by comprising a locating sleeve, four locating rods, pulleys and springs, wherein the locating sleeve is mounted on the inclinometer tube in a sleeving manner; and the four locating rods are distributed in the circumferential direction of the locating sleeve to form a cross-shaped structure. The inclinometer tube centring and locating assembly guarantees that central positions of the inclinometer tube and the tubular pipe overlap, guarantees that the inclination detection probe does not twist and incline in the horizontal direction inside the inclination detection probe, guarantees that the detection data of the inclination of the tubular pipe is accurate and reliable, and has the characteristics of high measurement accuracy and convenient operation.

The invention provides a complex-wave type harmonic drive speed reducer, which comprises a wave generator, a flexible gear, a fixed rigid gear and an output rigid gear, wherein the wave generator is provided with cams, a first flexible bearing and a second flexible bearing; the flexible gear is provided with a first external gear and a second external gear which are respectively arranged at two ends of the flexible gear; a first external gear of the flexible gear is meshed with the fixed rigid gear through the cam via the first flexible bearing, and the second external gear of the flexible gear is meshed with the output rigid gear through the cam via the second flexible bearing. The complex-wave type harmonic drive speed reducer has the advantages of realization of two-stage harmonic-drive speed reduction in the form of complex waves, compact structure, small volume, large transmission ratio, high transmission precision and wide range of application.

The invention discloses an automatic inner plug locating and installing mechanism. The automatic inner plug locating and installing mechanism comprises a mechanical hand system, a bottle opening locating system, a transporting system and a control system, wherein the mechanical hand system comprises an inner plug sucking hand, a lifting air cylinder, a transverse moving air cylinder, a guide rail which is arranged on a rack and a sliding block, and the middle upper part of the inner plug sucking hand is provided with a vacuum pipe which is communicated with a vacuum generator; the bottle opening locating system comprises a locating clamping block, a locating air cylinder and a locating and supporting seat which is used for fixing the locating air cylinder; the transporting system comprises a rotating disc which is used for transferring a bottle from a bottle installing station to a plug installing station, a supporting block, a guardrail and an inner plug transporting guide rail; the control system is electrically connected with the mechanical hand system, the bottle opening locating system and the transporting system. According to the automatic inner plug locating and installing mechanism disclosed by the invention, the problem of low working efficiency caused as an inner plug is manually installed by a person is overcome, the automation degree is strong, and the working efficiency can be greatly increased; each system sequentially works, strictness and coordination are realized, the inner plug can be conveniently installed, the stability of the automatic inner plug locating and installing mechanism is ensured from the structure design, and the reliability is strong.

The invention discloses a soil sampler for biological soil enzyme activity determination. The soil sampler comprises a handheld rod and a limiting frame; the lower end of the handheld rod is fixedly connected with the limiting frame; a movable sleeve is fixedly connected to the middle of the limiting frame; the lower end of the handheld rod is symmetrically connected with one ends of two telescopic rods; when a motor rotates, a rotating shaft can be driven to rotate, so that a sampling cylinder is driven to move downwards; the sampling cylinder can move downwards better due to the existence ofa spiral blade, so that the sampling can be performed better, the manual sampling is facilitated, and the labor force is reduced; the lower end of the spiral blade and the lower end of the sampling cylinder adopt conical structures, and in the sampling process, the sampling cylinder can enter the soil more easily, so that the sampling efficiency is improved; after the sampling is finished, in theprocess that a scraping plate moves downwards, a soil sample is pushed downwards, so that the soil sample is pushed out; and meanwhile, the inner side wall of the sampling cylinder is scraped by thescraping plate so as to ensure that the next sampling can be very smooth.

The invention provides a flexible wearable lower limb assistant exoskeleton suit. The suit is characterized by comprising high waist short pants, knee caps, shoes, a controller, a traction belt and two drive devices. The left and right hips joints and sacrum position of the high waist short pants are all provided with gyroscope sensors. The waist position of the high waist short pants is fixedly provided with an adjustable belt. The two drive devices are symmetrically installed at the adjustable belt located at front side of the high waist short pants in a left-right mode. Each drive device is connected with the upper end of a traction belt. The lower end of the traction belt penetrates through the kneed caps to be connected with the shores. Each drive device is used for driving the corresponding ankle joint move; the three gyroscope sensors and two drive devices are all connected with the controller; the controller is used for processing the data of three gyroscope sensors and controlling the motion of power elements of the drive devices, the knee caps are located at the knee joints and is provided with a plurality of magic sticker pasting points of different lengths, and the knee caps are also provided with knee dents.

The invention relates to a bearing mounting tool with a centering function; the bearing mounting tool comprises a pressure head (1), a guide shaft (2) and a spring (3); the guide shaft (2) is installed inside the pressure head and is capable of moving axially inside the pressure head (1); the spring (3) is arranged at one end of the guide shaft (2); the other end of the spring (3) is pressed against the internal wall of the pressure head (1); the other end of the guide shaft (2) is capable of being stretched out of the end part of the pressure head (1); the external diameter of the part of the guide shaft (2) stretched out of the pressure head (1) is equal to the internal diameter of the hollow part of a shaft equipped with a bearing; and the internal diameter of the pressure head (1) matches with the external diameter clearance of the shaft to be mounted with the bearing. The centering function during installation is realized; no deflection of the bearing during installation is guaranteed and the requirement without damaging the bearing, the shaft and the bearing seat is satisfied.

The invention discloses a security camera convenient in maintenance. The security camera convenient in maintenance comprises a mounting plate and a mounting base; one side surface of the mounting plate is fixedly connected with a round rod; a blind hole is formed in one side surface of the mounting base; the round rod is movably connected into the blind hole; a first cavity is formed in the mounting base; a through groove is formed in the inner wall of the blind hole, and communicates with the first cavity; the bottom of the inner wall of the first cavity is fixedly connected with an extension sleeve; the top of the extension sleeve is fixedly connected with a movable plate; the movable plate is movably connected into the through groove; the surface of the extension sleeve is movably sleeved with a spring; one end of the spring is fixedly connected with the bottom of the inner wall of the first cavity; and the other end of the spring is fixedly connected with the lower surface of the movable plate. Through arrangement of the mounting base, the movable plate, a semicircular clamping block and a gear, the security camera convenient in maintenance solves the problems of difficult manual disassembly and increment of the working danger of workers on climbing tools after traditional cameras are broken down.

The invention provides balance shoes special for the elderly. Each balance shoe comprises an upper, a sole and an insole. The middle portion of the insole is provided with a balance sensor and balance air bags at the location corresponding to the arch of the foot, the balance sensor is connected to the balance air bag, the location of the insole arch is lightly higher than the locations of the heel and the sole of the insole, the middle portion of the insole heel is slightly recessed, the middle portion of the insole sole is slightly uneven, the bottom of the rear-middle portion of a sole is provided with an antiskid bottom layer, a damping device is arranged between the antiskid bottom layer and the sole, the damping device comprises an air bag and a damping column arranged in the air bag, the bottom of the antiskid bottom layer is provided with protruding circular antiskid loops, and the antiskid loop is provided with antiskid lines in the interior. The balance shoes special for the elderly are simple in structure, a balance air bag at one side of each insole can appropriately adjust the height to keep balance when the disposed balance sensor detects that forces on the left and the right are nonuniform, the sensitivity is high, and the damping devices are disposed at the same time, dual balance can be kept.

A horizontal type cigarette carton sorting mechanism comprises a sorting device and a main conveyor belt. The sorting device comprises a rack, and a conveying rolling way is arranged on the rack. A replenishment tipper hopper is arranged at the front end of the conveying rolling way, and a separation rolling way is connected to the tail end of the conveying rolling way. A sorting bin is arranged at an outlet end of the separation rolling way, and a pusher mechanism for pushing a stack of cigarettes into the sorting bin is arranged above the separation rolling way, and the pusher mechanism comprises a pusher plate, a power device and a guide rail which are capable of moving up and down and moving horizontally. The horizontal type cigarette carton sorting mechanism has the advantages that the drawing speed of cigarette cartons and the speed of the main conveyor belt are homodromous and synchronous by means of arranging the cigarette outlet direction of the cigarette outlet and the main conveyor belt in parallel. Phenomena of rolling, inclination, overlapping and the like of cigarette cartons cannot occur even when the cigarette cartons are drawn rapidly, and not only the sorted orderly and dense cigarette cartons are convenient for subsequent stacking packaging, but also the cigarette carton capacity per unit length of the main conveyor belt is increased; besides, the main conveyor belt is long, accordingly, the capacity is larger, and the efficiency is higher than the prior art.

The invention discloses a pipe unloading and translation mechanism, and belongs to the field of building material machining mechanical equipment. A reciprocating driving mechanism is vertically fixedon one side of the upper side of a fixed base; a connecting bracket is vertically fixed between the reciprocating driving mechanism and a pushing mechanism; an unloading mechanism is arranged on the upper side of the pushing mechanism; the connecting bracket is horizontally and rotationally connected with an electromagnetic clutch; one end of a one-way clutch on one side of a rotating gear is horizontally arranged in the electromagnetic clutch; a pushing rotating shaft above a pushing bracket is horizontally arranged in the electromagnetic clutch; a damping mechanism is arranged at one end ofthe pushing rotating shaft; pipe pushing support rods are symmetrically arranged on the outer side of a pushing chain; and an unloading mechanism comprises a pipe guide inclined plate, a pipe stop rotating rod, a lower pipe cylinder and a lower pipe baffle plate. The pipe unloading and translation mechanism is reasonable in structural design, can gradually and stably unload pipes, and can flatly shift the pipes as needed efficiently and accurately to meet the machining and use demands.

The invention relates to a multi-roller mill backing roller integral repairing method, which includes steps of: selecting, assembling and grinding, wherein bottom surface of a base plate (26) of a backing roller is used as installation standard, the backing roller to be repaired is integrally installed on a grinding processing standard surface of a reconditioning mold. The invention also relates to a multi-roller mill backing roller integral repairing device, which includes a mold arranged on a workbench (21). The mold comprises a fixed base (1) for supporting the backing roller to be repaired, the fixed base is provided with a compaction roller driving device with a power machine and a transmission mechanism and compaction devices which has same number with bearing roller on the backing roller and are arranged at one side or two sides of the backing roller to be repaired, a groove (29) which is adapted with shape of the base plate of the backing roller is arranged at upper end of the fixed base (1), and the groove is in V shape or circular arc shape. The invention can carry out integral gapless grinding for the backing roller to be repaired, realizes integral moulding grinding, and has advantages of simple process, high precision and low cost.

The invention discloses an unreeling and shearing device for bolt machining. The unreeling and shearing device for bolt machining comprises a base, a feed rack, an unreeling mechanism, a shearing mechanism, a collection barrel and a control mechanism. The unreeling mechanism comprises a feeding roller couple, a conveying block and straightening roller couples. The shearing mechanism comprises a shearing workbench, a fixed platform, a cutter, a connecting sliding block and a driving cylinder. The connecting sliding block can be driven by the driving cylinder to vertically slidably mounted on the sidewall of the fixed platform. The cutter is arranged below the connecting sliding block. Through mutual cooperation of the feeding roller couple, the conveying block and the straightening roller couples, a wire rod is ensured not to deflect through a locating through hole in the conveying process. The wire rod is straightened through the straightening roller couples. The surface smoothness andthe size uniformity of the wire rod are improved. Convenience is provided for subsequent machining. The machining quality of bolts is improved. The rejection rate is reduced. The working efficiency is improved. Through mutual cooperation of a meter counter and the cutter, the unreeling and shearing device for bolt machining meets the requirement for machining of bolts with different lengths, is accurate in shearing and increases the material utilization rate.

The invention discloses a sewing machine edge cutting presser foot which comprises a presser foot plate, a cutter plate and a swing handle. The presser foot plate comprises a cloth pressing foot, a guide plate and a supporting plate, wherein the supporting plate is perpendicular to the cloth pressing foot and the guide plate. One end of the cloth pressing foot is bent to form a stitch moving groove. One lateral side of the guide plate extends to form a lifting plate. The cutter plate comprises a vertical plate, a cutter and a slide rod, wherein the cutter is installed on the vertical plate, the vertical plate and the supporting plate are fixed through a cylindrical pin, and the cutter is placed above the guide plate. The swing handle comprises a pull handle and a fixed plate. A fork opening is formed in the pull handle. A slide groove corresponding to the slide rod is formed in the fixed plate. The fixed plate is installed on the other side face of the supporting plate through a cylindrical pin. By means of the sewing machine edge cutting presser foot, the deckle edge can be cut while lockstitch is conducted.

The invention provides a solar street lamp with a cleaning device. The solar street lamp comprises a lamp pole, a street lamp body, a solar battery panel, a power device, a power device frame, a stirring type power device for providing power, a shell, an installation shaft and a stirring wheel, wherein the solar battery panel covers the top of the street lamp body; the power device is fixed on the lamp pole, the street lamp body or the solar battery panel; the power device frame surrounds the solar battery panel; two sides of the solar battery panel are provided with guide rails; the shell and the installation shaft are fixed on the position of the power device; the stirring wheel is driven by the power device for a traction belt to proceed; the stirring wheel is provided with stirring wheel teeth matched with traction belt holes. By use of the solar street lamp, the volume and the cost of a power device are reduced while the cleaning problem of a high altitude solar panel is solved, and therefore, the solar battery panel also can perform a function of a top cover and a lampshade so as to block the lamp body and the power device.

The invention provides a novel tension adjustment mechanism of a multi-wire diamond wire saw. The novel tension adjustment mechanism comprises a plurality of tension adjustment units, and the tension adjustment units comprise tensioning wheels and tension driving devices. Two wire grooves are evenly formed in each tensioning wheel. Each tension adjustment unit is tabular. The tension adjustment units are arranged in rows, the rows of tension adjustment units are arranged in a staggered mode, tension adjustment units in interval rows are in one-to-one correspondence mutually, and the distances between planes where the adjacent wire grooves are located are equal. Therefore, one or two wire grooves of each tension adjustment unit can be selected and used by people, and the positions of beaded wires can be conveniently adjusted. The tension adjustment units are tabular so as to be conveniently and densely arranged in a regular and reasonable mode, space is saved, and regular beaded wire arrangement and aligning are facilitated. Tension adjustment can be conducted on beaded wires respectively or simultaneously, and therefore the beaded wires are strong in flexibility. The number of the beaded wires can be increased or reduced, beaded wire distribution forms can be changed, and distances between the beaded wires can be adjusted to adapt to all kinds of cutting thicknesses.

The invention provides a driving device for a lifting platform of a stereo garage. The driving device for the lifting platform of the stereo garage comprises four power gears, two vertical double-faced racks and four hydraulic motors, two hydraulic motors are mounted at the left end of a steel truss of the lifting platform, the other two hydraulic motors are mounted at the right end of the steel truss of the lifting platform, the power gears are mounted on the output shafts of the hydraulic motors, the vertical double-faced racks are mounted on the walls of the stereo garage, the faces of the vertical double-faced racks are engaged with the power gears, and driven gears witch are engaged with the vertical double-faced racks are mounted on the steel truss of the lifting platform. According to the driving device for the lifting platform of the stereo garage, the hydraulic motors, the power gears and the driven gears are arranged both at the left end and the right end of the steel truss of the lifting platform, each face of the vertical double-faced racks is engaged with one power gear and one driven gear, therefore, the driving device for the lifting platform of the stereo garage is balanced vertically and is symmetrical laterally, and the lifting platform is table and does not incline or swing in the lifting operation and when a car is parked or picked up. The hydraulic motors, the power gears and the driven gears are all arranged in the lifting platform, the vertical double-faced racks are mounted in the garage, and thus the driving device for the lifting platform of the stereo garage has the advantages that the structure is compact, no additional machine room needs to be built on the ground, and the land surface area is saved.

The invention discloses a text sorting machine which comprises a collecting device, a paper feeding device, a scanning device, a storing device, a sorting device and a bottom plate. The sorting device is fixed on the bottom plate, the storing device is fixed on the sorting device, the paper feeding device sleeves the storing device, the collecting device is fixed obliquely above the top of the paper feeding device, the scanning device is fixed at the top of the paper feeding device, and the sorting device is located at the bottom of the storing device. By the arrangement, the dumping problem of paper sheets is solved through a slider-crank mechanism; the paper sheets rolled in can be enabled to vertically fall into corresponding case cells through a paper twisting wheel mechanism, and deflection and jamming never occur; sorting of large batches can be realized through a storage box mechanism by the aid of simple concept of sub-areas.

The invention discloses a manufacturing method of radiating device and auxiliary treating device with support device and radiating device with better leveling degree, which comprises the following steps: setting multiple locating grooves on the bottom brink of support device to chuck multiple fin apical margins; supplying support for device and base; pressing heavy pressure on two ends of base to clamp fin; making fin possess excellent flatness; producing even air-flow and excellent radiation efficiency for radiation device.