6results about How to "Little flow fluctuation" patented technology

The application discloses an intelligent monitoring infusion pump, and particularly relates to the technical field of infusion pumps, which comprises a connecting cylinder, a flow guide monitoring assembly is arranged on the connecting cylinder, the flow guide monitoring assembly comprises a gathering ring embedded in the connecting cylinder, a center block is arranged in the middle of the gathering ring, a baffle is arranged at the bottom of the center block, and a storage cavity is formed between the center block and the baffle. The application can realize manual fine adjustment of the flow of the liquid medicine, rapidly block the air path when the liquid level is abnormal or emergency liquid stopping is needed, realize automatic emergency adjustment of pressure and flow, solve the problem that the prior art can only detect pressure but cannot quickly adjust, meanwhile, the storage cavity formed by the center block and the baffle can temporarily store the liquid medicine, so that the bubbles rise and escape under the action of buoyancy, the bubbles are prevented from entering the blood vessels of a patient along with the liquid medicine, and the defect that bubbles are difficult to eliminate in the prior art is solved.

This invention proposes a liquid supply device and a substrate cleaning method. The liquid supply device includes a nozzle, the liquid inlet of which can adopt a tangential liquid inlet to promote gas-liquid separation using centrifugal force; a plate-shaped separation section or a cylindrical separation section can be provided above the liquid outlet of the nozzle to suppress the discharge of air bubbles from the liquid outlet; the nozzle can have an upper and lower chamber structure, with exhaust ports in both chambers to achieve secondary exhaust; both chambers can also be equipped with liquid inlets to allow the processing liquid to be mixed twice, which reduces the amount and rate of gas generation compared to single mixing; it also includes a control unit and a liquid level sensor. The control unit adjusts the opening of the regulating valve on the exhaust line of the nozzle based on the liquid level detection signal obtained by the liquid level sensor, so as to maintain a stable liquid level in the nozzle, which helps to reduce the flow fluctuation when the nozzle supplies liquid to the substrate and improves the uniformity and reliability of liquid treatment.

The utility model belongs to tobacco processing technical field discloses a kind of material uniform conveying device, material uniform conveying device includes conveying belt, support frame, first movable seat, material uniform main part and driving part, first movable seat is located on support frame, and the height position of first movable seat is adjustable along vertical direction relative to support frame;Material uniform main part is located above conveying belt, material uniform main part includes roller and the multiple material uniform plates that are intervalled along the circumferential direction of roller, roller rotation is located on first movable seat, and the length direction of material uniform plate extends and is arranged along the rotation direction of roller;Driving part is located on support frame.The utility model provides material uniform conveying device, driving part drives roller rotation and drives material uniform plate to push and scrape on conveying belt Cut tobacco, it is favorable to the distribution of Cut tobacco on conveying belt even, in turn, it is favorable to reduce the flow fluctuation of Cut tobacco before conveying, it is favorable to improve the quality of Cut tobacco.

This utility model discloses a valve sleeve integrated hot nozzle, relating to the field of hot runner technology. It includes a hot nozzle body with a hot runner channel inside. The hot runner channel has a main flow channel, a primary flow channel, and secondary flow channels connected sequentially. The main flow channel is arranged along the central axis of the hot nozzle body. Multiple secondary flow channels are arranged in a ring around the central axis of the hot nozzle body. Multiple primary flow channels are arranged, each corresponding to one of the secondary flow channels, and flow obliquely or branching from the main flow channel to guide and divert molten plastic in the main flow channel to the secondary flow channels. Each secondary flow channel is equipped with a valve control assembly, which includes a valve needle and a valve sleeve. The valve needle is movably inserted into the valve sleeve, and the opening and closing of the discharge hole at the bottom of the secondary flow channel is controlled by the axial sliding of the valve needle relative to the valve sleeve. This helps to reduce the dimensional tolerances of multi-cavity injection molded parts.

The utility model relates to be used for powder transmission multistage transmission device, including the storage tank for storing powder, with the storage tank connection first grade screw conveyer, its contained spiral blade one adopts variable diameter structure, from the feed end to the discharge end blade diameter gradually reduces, and the first grade screw conveyer with horizontal plane inclination angle theta <=15 DEG, the drive motor of first grade screw conveyer one passes through frequency changer control rotating speed, with the second grade metering conveyer of first grade screw conveyer connection, the second grade metering conveyer's body has at least installed three weighing sensors, controller, weighing sensor and controller electric connection, the controller passes through communication module with frequency changer two -way communication, through the utility model can constant blade and the clearance between casing avoid material stagnation, ensure the continuity of conveying, automatic regulation first grade conveyer rotating speed, make material flow fluctuation be smaller, satisfy high -precision metering demand.

The utility model discloses a pump head of a peristaltic pump, which belongs to the technical field of peristaltic pumps and comprises a fixed seat, a rotating component is arranged on the front side of the fixed seat, a driving component is arranged behind the fixed seat and connected with the rotating component, an upper pressing block is arranged on one side of the rotating component, and a lower pressing block is arranged on the other side of the rotating component. One side of the upper pressing block is connected with the fixing base, an elastic assembly is arranged above the other side of the upper pressing block, a hose is arranged between the upper pressing block and the rotating assembly, and a fixing assembly is arranged on the side, away from the upper pressing block, of the rotating assembly. The pump head of the peristaltic pump is not affected by tolerance and is high in coaxiality.