6results about How to "Cut off accurately" patented technology

The application discloses a novel electric buffering circuit for an electric motorcycle, which is connected in series between a battery pack and a motor controller, and comprises a high-temperature fuse resistor assembly, a controlled switch, a detection circuit and a processing circuit. The high-temperature fuse resistor assembly is composed of a high-power wire-wound resistor and a constant-temperature thermal fuse, and the controlled switch is connected in parallel with the high-temperature fuse resistor assembly. The processing circuit disconnects the controlled switch to perform current-limiting pre-charging when the circuit is initially powered on. When an abnormal signal is monitored, the controlled switch is disconnected and a preset time window is started to verify the anti-mis-triggering. If the abnormality disappears within the window, it is determined to be a transient disturbance and the switch is re-closed. If the abnormality persists, the switch is locked off, and the high-temperature fuse resistor assembly is irreversibly fused by actively using a large fault current. The application effectively filters out transient disturbances under complex road conditions, avoids unexpected vehicle breakdown, and realizes absolute safe physical-level electrical isolation at low cost in the case of hard failure.

The present application relates to a kind of reversible immunomagnetic beads for quickly separating target cells and its preparation method. Specifically, the present application provides a kind of reversible immunomagnetic beads, which includes magnetic carrier, affinity ligand and the connecting arm of the connection between the two, wherein the connecting arm contains a nucleotide sequence that can be specifically recognized by enzyme cutting, preferably containing deoxyinosine (dI) base.The present application also provides a kit comprising the magnetic beads and specific cleavage enzyme (such as endonuclease V).The magnetic beads of the present application can be cleaved by enzyme to achieve mild and rapid dissociation of the magnetic beads and target cells, with high separation efficiency and good cell viability, solving the problem of cell damage caused by irreversible binding of traditional immunomagnetic beads.The present application is simple to operate, does not require complex equipment, and the separated cells can be directly used for in vitro expansion, differentiation or cell therapy, and has wide research and clinical application prospects.

This invention discloses an in-mold gate cutting device for logo injection molds, relating to the field of injection molding, and solves the problem of deformation and whitening at the shearing opening of symmetrical logo injection molds. The in-mold gate cutting device for logo injection molds includes a support frame, with a force-applying component mounted at the top of the support frame. This force-applying component cuts the logo injection mold. A positioning component is mounted on one side of the force-applying component, and the positioning component is aligned with a positioning template. The force-applying component includes a drive motor, a first clamping plate, and a second clamping plate. The drive motor drives the first and second clamping plates to move relative to each other in the horizontal direction through a transmission structure. The positioning component includes a first positioning template, a second positioning template, and a logo body. The first and second positioning templates are aligned to cut the logo body. In this invention, the force-applying component and the positioning component work together to apply force from both sides of the logo body, preventing the product from deflecting or shifting at the moment of cutting. After cutting, the product automatically falls from the opening.

This invention addresses the shortcomings of existing chemical fiber cutting devices, which, except for short cuts of carbon fiber and glass fiber where length precision is not critical, typically employ fixed-length cutting mechanisms and guillotine-type cutters, requiring manual feeding of the cutter after each cut. To reduce the repetitive process of manually pulling the fiber bundle from the cut surface to the fixed end after cutting, this invention designs a cutting disc mechanism for chemical fiber cutting, comprising: a circulating clamping device for conveying the chemical fiber to a fixed length; clamping and tightening rails located on both sides of the clamping part of the circulating clamping device for adjusting the clamping part; a movable cutting disc device located inside the circulating clamping device, on the upper side of the conveying plane; and a movable support device located inside the circulating clamping device, on the lower side of the conveying plane, cooperating with the movable cutting disc device to cut the chemical fiber held by the circulating clamping device.

The utility model discloses a kind of aluminium tape winding disc devices, which is used for winding packaging of aluminium tape;First winding disc, second winding disc are set in mounting disc, first driving member is installed in mounting disc, for driving first winding disc rotation;Second driving member is installed in mounting disc, for driving second winding disc rotation;First auxiliary roller, second auxiliary roller are respectively set in mounting disc, and rotate with mounting disc;First winding disc is formed with first cutting part, and second winding disc is formed with second cutting part;Third driving member is fixed with rack, cutter is installed in the driving end of third driving member;When third driving member drives, cutter can enter first cutting part or second cutting part;Rotary assembly is installed in rack, and is connected with mounting disc;Rotary assembly is used to drive mounting disc rotation, to make first winding disc and second winding disc automatically complete station interchanging.The utility model technical scheme aims at improving production efficiency, and realizes the uninterrupted operation of aluminium tape winding packaging.

The invention discloses an automatic high-precision positioning pipe cutting machine and belongs to the technical field of cutting machines, the automatic high-precision positioning pipe cutting machine comprises a machine tool table and a working chamber, a discharging cavity is formed in the machine tool table, a discharging cavity is formed in the top of the machine tool table, and a reciprocating cutting assembly is connected to the top of the machine tool table; a positioning assembly is connected to the top of the machine tool table and comprises a supporting frame, a pressing block, a plurality of sets of driving wheels and a conveying strip. Through the close fit of the conveying strip and the driving wheel, the stable movement of the pipeline in the detection process is ensured, the automatic rotation of the pipeline is realized, and great convenience is provided for all-directional welding seam detection. The stability and safety of the pipeline in the pushing, rotating and detecting processes are guaranteed, sliding and deviation of the pipeline are prevented, and therefore the grinding and detecting accuracy and efficiency are guaranteed. By means of the design, the stability and reliability of the production process are improved, and the cost for maintaining and replacing equipment is saved for enterprises.