9 results about "Tube suction" patented technology

A method and a device for preparing a fluoride glass optical fiber preform by a tube suction method are provided. The method includes following steps: S1, heating and melting glass raw materials of outer cladding, inner cladding and a fiber core; S2, sucking to prepare the outer cladding; S3, sucking to prepare the inner cladding inside the outer cladding; S4, sucking to prepare the fiber core inside the inner cladding; and S5, annealing the outer cladding, the inner cladding and the fiber core to obtain a preform product.

A kind of suction tube, suction system and powder spraying chamber;Suction tube is provided with suction inner cavity along the height extension direction;The side of suction tube is provided with multiple sections of tube suction port from low to high respectively, multiple tube suction ports are arranged in line in turn, and tube suction port is the input end of suction tube;Wherein two tube suction ports distributed in upper and lower are spaced apart to form the empty side;The side position of suction tube is provided with tube air outlet, tube air outlet is located outside the empty side, tube air outlet is horizontally aligned with the empty side, and tube air outlet is the output end of suction tube;Tube suction port, suction inner cavity and tube air outlet are communicated.This scheme can unify and quickly recycle powder of multiple height positions of powder spraying chamber, the suction volume of powder spraying chamber is smaller, power consumption is lower, and the situation that other positions are difficult to inhale powder due to excessive local air volume is prevented.

The invention relates to the technical field of sample storage, in particular to a self-guiding cryopreservation tube suction head based on a linear motor, which comprises a base, a connecting seat, the linear motor and a righting assembly, and the righting assembly comprises a gas rod, a cold guiding tube and a gas nozzle ring; the linear motor comprises a stator and a rotor, the stator is fixed to the bottom of the connecting base, the rotor is fixed to the top of the base, and the stator penetrates through the rotor in a sliding mode; the upper portion of the air rod is fixed to the connecting base, and the lower portion of the air rod sequentially penetrates through the base and the cold guide pipe and extends below the cold guide pipe. Through cooperation of the air tap ring and the cold guide pipe, the air tap ring can preliminarily correct the cryopreservation pipe when making contact with the cryopreservation pipe, the cryopreservation pipe is flexibly clamped through the air tap ring, the deflection risk caused by point contact is reduced, the cryopreservation pipe is straightened in the whole process in the lifting process through the cold guide pipe, deflection of the cryopreservation pipe in the transferring process is avoided, and the safety of the cryopreservation pipe is improved. The air channel is extended through the air rod, the air source is far away from a low-temperature area, and the influence of low temperature on the vacuum system is reduced.

This invention belongs to the field of fiber tube forming technology, and discloses a ceramic fiber filter tube vacuum forming device and forming method. The ceramic fiber filter tube vacuum forming device includes a forming component, a tube removal component, and a material distribution component. The forming component includes a support drive component, a roller, a vacuum filtration component, and a forming roller. Two rollers are spaced apart, and the support drive component can drive the rollers to rotate. The vacuum filtration component is connected to the forming roller, and the forming roller has several filtration holes. The forming roller is located above the two rollers, and the two rollers and the forming roller are triangularly distributed. The diameter of the forming roller is adjustable. The tube removal component includes a tube removal drive component, which is connected to the forming roller and can drive the forming roller to move along its axial direction. The material distribution component is configured to rotate the forming roller and distribute slurry onto the forming roller. The forming method uses the above-mentioned ceramic fiber filter tube vacuum forming device to improve the surface quality and strength of the filter tube, while also improving production efficiency.

The utility model discloses a batch type removing and cleaning auxiliary device for EP pipes. The batch type removing and cleaning auxiliary device comprises a base table, a vertical lifting unit, a batch clamping unit, a visual sensor and a removing and cleaning processing unit. After the clear liquid is completely pumped, the handle can be manually lifted, and the elastic clamping head gets close to the middle under the action of the connecting rod, so that the clamping state of the elastic clamping head and the clamping groove is released, and the disc-shaped batch body is separated from the bearing body on the base table; and then, the bearing body can be coaxially fixed on the rotating shaft of the centrifugal machine in advance, namely, the disc-shaped batch-loading body can be directly clamped on the bearing body of the centrifugal machine, so that batch-type rapid clamping is completed, and the problems that in the prior art, centrifugal operation needs to be carried out after cleaning, and a conventional operation method is that the EP pipes are mounted on a loading table of the centrifugal machine one by one; and the process consumes a large amount of transfer time. In addition, through the batch type unified supernatant suction and discarding operation achieved by means of the supernatant removal processing unit, the EP pipe suction efficiency is substantially improved.

The utility model discloses a water surface foam collecting device for a shipborne breeding cabin, and relates to the technical field of shipborne breeding. A V-shaped guide plate; a central collection tank; a negative pressure suction pipe; according to the air-liquid separation device, a fan-shaped water flow layer is formed through a forked type water spraying structure, the coverage area can be greatly increased, the requirement for complete coverage of the water surface in a single culture cabin is met, and the air-liquid separation device is simple in structure, convenient to use and high in practicability. Compared with traditional single-tube suction and the prior art, the small-area coverage efficiency is obviously improved, meanwhile, energy consumption can be reduced, in addition, a hydrophobic coating can be coated on the V-shaped flow guide plate, the foam gathering speed is further increased, the overall treatment efficiency is improved, meanwhile, no mechanical stirring design is adopted, the fish stress reaction occurrence rate is reduced, and the production cost is reduced. And an eco-friendly foam collection and treatment mode is created.

The utility model discloses a double-station metal oxide semiconductor (MOS) tube pin cutting, chamfering and assembling mechanism, which comprises two MOS tube feeding devices, two first MOS tube feeding devices, two MOS tube staggered distributing devices, two MOS tube pin cutting devices, two second MOS tube feeding devices, two MOS tube pushing devices, two MOS tube chamfering devices, an X-axis module, a Y-axis module and an MOS tube sucking and assembling device, the MOS tube feeding devices are arranged in parallel downwards in an inclined mode, the chamfering portions of the MOS tube chamfering devices are in butt joint with the pushing-out portions of the MOS tube pushing devices, the X-axis module is arranged above one sides of the two MOS tube chamfering devices in parallel, one end of the Y-axis module is installed on the translation portion of the X-axis module, and the other end of the Y-axis module is installed on the translation portion of the Y-axis module. And the MOS tube sucking and assembling device is downwards arranged on the translation part of the Y-axis module. According to the utility model, a series of automatic operations such as automatic feeding, automatic pin cutting, automatic chamfering and automatic assembling of the MOS tubes can be realized, the efficiency is high, the operation is stable and reliable, the product quality can be improved, and the high-speed production requirements of enterprises are met.

The utility model provides a carrying mechanism which comprises a base, a butt joint box is fixedly connected to the top of the base, a butt joint groove is formed in one side of the butt joint box, a movable platform body is arranged on the inner top wall of the butt joint groove, and an electric telescopic rod is fixedly connected to the bottom of the movable platform body. The bottom of the electric telescopic rod is fixedly connected with an objective table. A half part of a wafer is placed in the object carrying groove, the vacuum pump is started, the vacuum pump can extract and suck air from the air suction pipe, then the air in the vacuum groove can be extracted, the adsorption opening is formed in the inner wall of the vacuum groove, and then air in the object carrying groove can enter the vacuum groove through the adsorption opening; according to the wafer positioning device, the wafer is placed in the loading groove, so that an adsorption acting force is formed in the loading groove, when a part of the wafer is placed in the loading groove, the adsorption acting force adsorbs the wafer, the wafer is positioned in the loading groove, and a workpiece does not need to be additionally arranged on the outer wall of the wafer in the wafer positioning process of the wafer positioning device.

The application provides a platelet-rich plasma preparation method, comprising: a centrifugal assembly with an inner cavity; and a suction assembly sleeved in the inner cavity of the centrifugal assembly; wherein the centrifugal assembly comprises: a centrifugal tube; a centrifugal tube sealing piston arranged in the centrifugal tube; and a centrifugal tube suction rod connected with the centrifugal tube sealing piston through a centrifugal tube piston connecting piece; and the suction assembly comprises: an inner suction tube; an inner suction tube sealing piston arranged in the inner suction tube; and an inner suction tube core rod connected with one end of the inner suction tube sealing piston. The platelet-rich plasma preparation method provided by the application is integrated with equipment, convenient to operate, and can effectively improve the stability, precision and concentration of platelet-rich plasma.