259results about How to "Precise length control" patented technology

The invention discloses an automatic tin staining device for a connection line, which comprises a conveying mechanism, a tin furnace and a controller. The controller is used for coordinating the work of a pneumatic or/and electric device; the conveying mechanism is provided with a fixed guide rail mechanism matched with a connection line fixing mechanism, a connection line drive mechanism and a movable guide rail mechanism smoothly connected with the fixed guide rail mechanism; the movable guide rail mechanism is movably connected with a frame and is in transmission connection with a turning mechanism; and the tin furnace is movably arranged on the frame at one side of the movable guide rail mechanism. When the connection line fixed mechanism is moved to a tin staining position during the work, the movable guide rail is turned by the movable guide rail turning mechanism, so that the connection line on the connection line fixed mechanism is reset after being contacted with soldering tin in the tin furnace. The automatic tin staining device is simple in structure, and can accurately control the tin staining length through properly controlling the liquid surface of the soldering tin; simultaneously, the staining of the tin is automatically controlled, so that the efficiency of the staining of the tin can be improved, the low efficiency of the manual staining of the tin is avoided so as not to easily cause scalding phenomenon.

The invention relates to a pile column type concrete hollow pile pier structure. The pile column type concrete hollow pile pier structure is characterized by comprising a concrete hollow pile pier, a bridge support, a pier cover beam and a base bearing platform, a flange disc is arranged at the lower end of the concrete hollow pile pier, a reserved bolt hole is formed in the flange disc, the flange disc is connected with the base bearing platform, the flange disc and the base bearing platform are arranged in cast-in-place concrete, an upper bridge support steel plate is arranged at the upper surface of the bridge support while a lower bridge support steel plate is arranged at the lower surface of the bridge support, a flange disc is arranged at the upper end of the concrete hollow pile pier and connected with the lower bridge support steel plate, and the upper bridge support steel plate is connected with the pier cover beam. The pile column type concrete hollow pile pier structure has beneficial effects that the concrete hollow pile pier can be prefabricated in a factory, the pier length can be controlled precisely, the bearing ability of the pier is improved, the concrete hollow pile pier is connected with the base bearing platform through using the flange discs and an insert core reinforcing cage and casting concrete in place, the connecting intensity of the pier can be guaranteed, and the stability thereof is improved.

The invention discloses a single welding and series welding integrity device of solar cell slices. The provided single welding and series welding integrity device of the solar cell slices is good in positioning accuracy and compatible in the solar cell slices with different specifications, and can improve the single welding and series welding production efficiency of the solar cell slices. The device comprises a device rack, the device rack is provided with a feed mechanism, a transmission and positioning mechanism, a welding and temperature control mechanism, a blanking mechanism, a control mechanism and a power supply and control mechanism. According to the single welding and series welding integrity device of the solar cell slices, a full manual welding mode is replaced by a full automatic mechanical welding mode, the production efficiency is remarkably increased, the cell slice failure rate during a welding process is reduced, and the device is suitable for cell slice welding of the solar cells.

The invention relates to an automatic shirt under fly sewing machine which comprises a worktable and an edge folding mechanism. The edge folding mechanism comprises a table top plate, the table top plate is provided with a first low air suction area formed by multiple lower air suction through holes, a column of side air suction through holes is formed in the right side of the first low air suction area on the face plate, a cover plate capable of covering the side air suction through holes is arranged on the upper surface of the table top plate, grooves are formed in the lower surface of the cover plate, the groove openings of the grooves face the side air suction through holes and cover the side air suction through holes, one end of each groove extends to the edge of the cover plate close to the center of the table face plate, and a transverse cloth dragging device and a sewing machine head are further installed on the worktable. The automatic shirt under fly sewing machine is provided with the cover plate with the grooves formed in the lower surface on the table with the holes, so that lower air suction is changed into side air suction, the edge of a fabric is folded, and the fabric is erected at the position provided with the grooves at the edge position of the cover plate to form a folded edge.

The invention relates to a mooring-type firefighting aerial reconnaissance platform which comprises a suspended unmanned aerial vehicle firefighting reconnaissance platform, a mooring cable, a cable automatic release and retraction system, a high-voltage power source supply system and a ground control center. A reconnaissance platform control system, a multifunctional sensor obstacle-avoiding system, an unmanned aerial vehicle laser positioning takeoff and landing system, a temperature sensor and a load mounting platform are mounted on the suspended unmanned aerial vehicle firefighting reconnaissance platform, and various firefighting task loads are mounted on the load mounting platform. The high-voltage power source supply system comprises a ground power supply system and an onboard powersupply system, the mooring cable is connected between the onboard power supply system and the cable automatic release and retraction system, and the ground control center is connected with the cableautomatic release and retraction system through an optical cable. The mooring-type firefighting aerial reconnaissance platform can constantly work for 24h, so that working ability is improved greatly.The platform can carry more than 5 firefighting task loads for simultaneous working and can complete various firefighting work tasks, so that functions are expanded greatly.

In the method, a counter-trapeziodal structure with wide top edge and narrow bottom edge is formed by utilizing etching technique to etch grid stack structure after a gate oxide layer and grid stack structure of polysilicon layer are formed at the surface of a substrate. A vertical implanting step of shallow ion doping is carried on by utilizing the grid stack structure as shield to form a shallow ion doping region in the substrate at two sides of the grid stack stracture so the shallow ion doping region can be diffused horizontally to substrate under bottom periphery of the grid stack structure to form lightly doped drain structure in the following heat preparation process.

The invention provides a full-automatic assembling system for an adjusting pin of a cupboard, relates to an assembling system, and aims at solving the problems that when an existing adjusting pin is assembled by a manual manner, the manual assembling is low in efficiency, costs lots of time and force and is high in cost, and meanwhile, a large length difference occurs when manually assembling and screwing a T-shaped part into a cylindrical part, the standardization and unification cannot be reached, and as a result, the packaging and transportation are difficult. The full-automatic adjusting system for the adjusting pin of the cupboard is characterized in that a cylindrical part lifting machine is positioned at one side of an overturning mechanism; a discharging opening in the cylindrical part lifting machine is formed above a conveyor belt in the overturning mechanism; a four-shaft coupling assembling device is positioned at the other side of the overturning mechanism, and a clearance exists between the four-shaft coupling assembling device and the overturning mechanism; two conveyor belts of a T-shaped part arranging machine are positioned at one side of the double-shaft coupling assembling device and a clearance exists between the conveyor belts and a rotating plate mechanism in the four-shaft coupling assembling device; the overturning mechanism and the four-shaft coupling assembling device are respectively electrically connected with a system controller. The full-automatic adjusting system for the adjusting pin of the cupboard is used for assembling the T-shaped part and the cylindrical part.

The invention provides a novel automatic cable cutting device. The novel automatic cable cutting device comprises a base, wherein a dragging device, a cutting device and a distance fixing device are successively arranged on the base; the dragging device comprises a fixed frame, a transmission belt and a motor; the fixed frame is fixed on the base; a driven wheel and a driving wheel are arranged at the top and the bottom of the fixed frame; the driving wheel is connected with the motor via the transmission belt; the cutting device comprises a bracket and a cutting cylinder arranged on a bracket top plate; the output end of the cutting cylinder passes through the bracket top plate and is connected with a cutter; the distance fixing device comprises a sliding rail, a sliding block and a distance fixing cylinder; the sliding rail is arranged on the base in the length direction of the base; the sliding block is slidably arranged on the sliding rail; the output end of the distance fixing cylinder is fixedly connected with the sliding block; a cable clamping mechanism used for clamping cables is fixedly arranged on the side of the sliding block. The novel automatic cable cutting device has the beneficial effects that data cables can be cut at a fixed distance, the novel automatic cable cutting device is convenient to operate, and the production efficiency of the data cables is improved.

The invention discloses an automatic magnetic strip passing machine. The automatic magnetic strip passing machine comprises a rack and a magnetic strip tractor, wherein the magnetic strip tractor is positioned on the rack, a magnetic strip passes through a guide rod, a pressing wheel and the magnetic strip tractor in sequence, the magnetic strip tractor comprises two conveying machines respectively including an upper conveying machine positioned on the top and a lower conveying machine positioned at the bottom, an upper guide groove is formed in one surface, which is opposite to the lower conveying machine, of the upper conveying machine, a lower guide groove which is opposite to the upper guide groove is formed in the lower conveying machine, a conveying belt of the upper conveying machine is arranged in the upper guide groove, a conveying belt of the lower conveying machine is arranged in the lower guide groove, the magnetic strip is positioned in a gap formed by the conveying belts of the upper conveying machine and the lower conveying machine and is clamped to move forward by the conveying belts of the upper conveying machine and the lower conveying machine, and the gap is positioned in the upper guide groove or the lower guide groove. According to the automatic magnetic strip passing machine, whether the magnetic force of the magnetic strip is qualified can be automatically detected, the traction of the magnetic strip does not slip, the cutting length of the magnetic strip is accurate, the qualified rate of products is increased, and the cost is reduced.

The invention discloses a belly pad folding machine, which comprises a frame, a material discharging device, a material feeding device, a material cutting traction device and a folding and discharging device arranged on the frame in sequence; the folding and discharging device includes a transverse folding mechanism And the longitudinal folding mechanism, the horizontal folding mechanism includes two folding shafts parallel to each other, the folding shafts are provided with a plurality of folding rods, and the folding rods are perpendicular to the folding shaft; the longitudinal folding mechanism includes vertical The half-folding plate is set and perpendicular to the folding shaft, and the position corresponding to the horizontal platform and the half-folding plate is provided with a plate-passing groove, and two side-by-side double-folding transfer rollers are arranged below the plate-passing groove. The invention eliminates the labor cost, has the advantages of accurate material cutting, rapid folding and high efficiency, low equipment cost, compact structure and small occupied space.

The invention relates to a variable frequency steel strand cable penetrating machine. The machine comprises a machine shell, wherein a steel strand inlet pipe and a steel strand outlet pipe are arranged on two side plates of the machine shell; a driving mechanism, a clamping mechanism and an adjusting screw rod are arranged in the machine shell; the driving mechanism comprises a reduction gear set and a carrier gear; the clamping mechanism comprises two upper occupied plates and two lower occupied plates which are symmetrically arranged; movable connection plates are correspondingly arranged at the two sides of the upper and lower occupied plates; upper pressure gears are arranged on the upper occupied plates; lower pressure gears are arranged on the lower occupied plates; the upper pressure gears are meshed with the lower pressure gears; the reduction gear set and the carrier gear are simultaneously meshed with the lower pressure gears; semicircular slots are arranged in the middle of the outer edges of the teeth of the upper and lower pressure gears; one end of each of the lower occupied plates extends upwards to form a support plate of the adjusting screw rod; support shafts are arranged between the support plates; threaded holes are arranged in the middle of the support shafts; the adjusting screw rod penetrates through the threaded holes; and the end of the adjusting screw rod is movably connected with a locking pendulum shaft. The machine has the following beneficial effects: the machine can succeed in cable releasing and cable penetrating once, can proceed or step back freely, can accurately control the length of the steel strands conveyed into prestressed ducts and can solve the problem of long-distance cable penetrating.

The invention provides a novel wire cutting machine which comprises a wire feeding mechanism, a straightening mechanism, a wire cutting mechanism and a control system. The wire feeding mechanism, the straightening mechanism and the wire cutting mechanism are arranged in sequence. The control system controls the wire feeding mechanism and the wire cutting mechanism. The wire cutting mechanism comprises a pneumatic control device, an impact hammer, a spring, an air cylinder, a collision block, a fixed cutter, a moving cutter, a guide rod and a plate support. The impact hammer, the spring and the collision block are sequentially connected and are arranged in the air cylinder. The pneumatic control device is connected with the air cylinder. The moving cutter is arranged under the collision block. The fixed cutter is provided with a wire passing hole. The moving cutter is provided with a cutter hole. When the pneumatic control device is switched off, the wire passing hole and the cutter hole are coaxial. According to the novel wire cutting machine, the impact hammer in the wire cutting mechanism drives the cutter to move at a high speed under the action of air pressure, cut-off motion can be instantly completed, and the quality of cross sections is guaranteed. Meanwhile, wire feeding wheels in the wire feeding mechanism press metal wires tightly through the air cylinder and are driven by a servo motor to feed the metal wires. The control system is used for automatically and accurately controlling the feeding length of the wires.

The invention puts forward an interferometer cascaded by two Fabry-Perot cavities on the basis of an optical fiber line. The interferometer comprises a broadband light source, a circulator, a sensinghead and a spectrum analyzer, wherein the sensing head is manufactured by a single-mode optical fiber or a multimode optical fiber. The interferometer is characterized in that femtosecond laser is used for inscribing four reflecting mirror surfaces which vertically penetrate through a fiber core and have the same size, wherein the end surface of the optical fiber is cut into a wedge shape to eliminate end surface reflection interference, and all reflecting mirrors and the optical fiber form the sensing head of the Fabry-Perot cavity interferometer. Light from the broadband light source is received by the circulator and is transmitted to the sensing head, then, the sensing head returns the light to the circulator, and the light is transmitted to the spectrum analyzer through the circulatorso as to form the cascade Fabry-Perot cavity interferometer. The interferometer has the characteristics of being simple in structure, simple in manufacture, low in cost, high in sensitivity and the like.

The invention relates to a flexible rule, which comprises the following parts: a shell; a handle seat (4) arranged on the shell; a handle handgrip (1) of which one end is connected with the handle seat (4); a rule core plate (11) for driving rule strip to be drawn out and coiled; and a driving mechanism which is used for transmitting the driving force of the handle handgrip (1) to the rule core plate (11) and is arranged in the shell and positioned between the handle seat (4) and the rule core plate (11). The flexible rule is characterized by further comprising a damping mechanism which can instantaneously stop the rule core plate (11) from rotating continuously when the rule strip is in the drawn out state or in the coiled state. Compared with the prior art, the flexible rule has the following advantages that: the increased damping mechanism can stop the rule core plate instantaneously without being influenced by the inertia force and the elastic force of the stretching of the rule strip so that the rule core plate stops rotating; the flexible rule not only can prevent expansible band and dispersion, but also can reduce the impacts caused by the self-rotation of the rule core plate, and prolong the service life of the flexible life; besides, when the rule strip is drawn out, the length can be controlled accurately.