51results about How to "Efficient punching" patented technology

Methods and devices are provided for preparing and separating biological analytes. In one embodiment, one or more filtration devices or filter plate wells can be formed by clamping a filter sheet between first and second plates having at least one connecting cavity. First and second moveable core pins positioned on opposed sides of the sheet can be moved to remove portions of the sheet. A molten plastic can be injected to fill the volume between the cores and cavities and to form a liquid-impermeable sleeve wall or walls, each being separately sealed at the bottom to the perimeter of the sheet portion, each having liquid permeable regions of said removed and sealed sheet portion, and each remaining open at the top. Various exemplary configurations for filtration devices or filter plate wells are also disclosed.

A heat sink characterized in that it has a structure in which layers of a silicone composition containing aluminum oxide are laminated on both sides of a glass cloth of a reinforcing layer, and the inside of the glass cloth contains a silicone composition, wherein the average sphericity of aluminum oxide is 0.85 or more, in the frequency particle size distribution of alumina, there are extremely large peaks in the region of 15-50 μm, 1-7 μm and 0.1-0.8 μm, the average particle size of alumina is 7-50 μm, the organic silicon composition The content of alumina in the glass is 62-78% by volume, the content of silicone resin is in the range of 22-38% by volume, and the glass cloth is a woven glass fiber bundle made of bundled glass filaments. The impregnation rate of the silicon composition to the glass fiber bundle is 20% or more.

The invention discloses n-shaped steel beam two-end synchronous punching equipment. The n-shaped steel beam two-end synchronous punching equipment comprises a machine frame, two punching mechanisms, amaterial placing frame, a material passing control mechanism, a material blocking control mechanism and a material receiving frame; the two punching mechanisms are arranged on the two sides of the machine frame in the length direction correspondingly; the material placing frame and the material receiving frame are positioned on the two sides of the machine frame in the width direction correspondingly; the material placing frame is provided with an inclined discharging support; the material passing control mechanism is used for performing blocking and passing control on an n-shaped steel beamat the lowest position of the inclined discharging support; the two ends of the n-shaped steel beam slide on the workbenches of the two punching mechanism correspondingly after the material passing control mechanism allows to pass; the material blocking control mechanism is used for performing positioning blocking during processing of the n-shaped steel beam on the machine frame and performing passing control after processing; and the material receiving frame is provided with a material receiving support. The n-shaped steel beam two-end synchronous punching equipment can perform punching processing on the two ends of the n-shaped steel beam simultaneously, can perform secondary positioning processing without turning 180 degrees and can realize automatic continuous production.

The invention discloses a micro-laser beam precision machining optical device, and relates to a precision machining device. The invention provides the micro-laser beam precision machining optical device for laser precision machining, which is provided with visible light coaxial positioning indication and can conveniently realize direct coupling of diffraction-free beams and nozzle micropores. Themicro-laser beam precision machining optical device is provided with a laser, a visible light source, a flat mirror, a beam expanding collimator, an axicon, an optical window, a pressure fluid chamber and nozzle micropores, wherein the flat mirror is positioned in front of the laser and the visible light source; laser beams emitted by the laser are coupled with beams of the visible light source through the flat mirror; the beam expanding collimator is positioned in front of the flat mirror; the axicon is positioned in front of the beam expanding collimator; the pressure fluid chamber is positioned in front of the axicon; the optical window is arranged on the top of the pressure fluid chamber; the bottom of the pressure fluid chamber is provided with the nozzle micropores; and the beams coupled through the flat mirror are coaxial with the beam expanding collimator, the axicon, the optical window and the nozzle micropores.

The invention discloses a punching device with adjustable punching depth, which comprises a bottom plate, a support plate is arranged on the top of the bottom plate, and a first mounting plate and a second mounting plate are symmetrically arranged on the supporting plate, and the first mounting plate The side close to the second mounting plate is provided with a shutter 1 and a shutter 2 respectively, a rotating rod is arranged between the shutter 1 and the shutter 2, and one end of the rotating rod penetrates through the shutter. The second plate is connected with the rotating shaft. One side of the rotating shaft is provided with the first motor. The first side of the rotating shaft and close to the second mounting plate is provided with a gear ring one. A second gear ring is provided on the side, and the first gear ring and the second gear ring are meshed with the corresponding gear one and the second gear respectively. The top ends of the first screw and the second screw penetrate through the top plate and extend away from the top plate. Beneficial effects: adjusting the depth of the punching hole, changing the position of the punching hole, improving the work efficiency and strong practicability.