40results about How to "Not prone to bending deformation" patented technology

The invention discloses an integral push-lead type method for the installation of a tunnel anchor cable anchoring agent. The method comprises the following steps: connecting multiple anchoring agent cartridges filled with the anchoring agent integrally; installing the integrally connected anchoring agent cartridges in a push-lead mechanism; propping an anchor cable against a base plate at the rear end of the push-lead mechanism, and then inserting the push-lead mechanism equipped with the anchoring agent cartridges into a drilled hole formed in rock or coal; pushing the anchor cable toward a drilling direction, so that the push-lead mechanism reaches the top of the drilled hole, using a roof bolter for continuing to push and stir the anchor cable correspondingly, so that the multiple anchoring agent cartridges in the push-lead mechanism are broken, and the anchor cable is anchored in the stable rock or coal by using the anchoring agent. In addition, the invention further provides a device for the method; the device has the advantages of simple structure and good stability, and can effectively solve the problems of multiple-time installation of the anchoring agent cartridges, high probability of blockage of drilled holes, complicated installation process, long support time, high labor intensity of workers and other difficulties restricting the development of the tunnel support technology in the installation process of the existing anchoring agent cartridges.

The invention provides a retractor for a safety belt. A retractor frame comprises two opposite side walls, and corresponding positions of the two opposite side walls are provided with round holes with inner tooth sections. The tooth sections are arranged at a position corresponding to the outward traction direction of a braided belt. A retraction shaft comprises a core shaft which is provided with a though hole along the central axis and is used for winding the braided belt, and two separating end covers which are respectively installed at two ends of the core shaft. The periphery of each end cover is provided with outer teeth matched with inner teeth on the frame. A torsion bar is bar-shaped, the axial middle of the torsion bar is provided with a middle section of outer teeth, and the inner teeth matched with the outer teeth are installed in the though hole of the core shaft. Connection between the torsion bar and the two separating end covers at two ends is achieved at a crossing position between the torsion bar and the two separating end covers through a gear installed at the crossing position and gears correspondingly installed at the end covers. The retractor for the safety belt overcomes the shortcoming that the position of the locking of a retractor is unfixed, and improvement of control accuracy of the retractor is benefited. The invention further provides a safety belt assembly.

The invention relates to the technical field of dies and discloses a continuous die structure for square washers. The continuous die structure is characterized in that an upper die plate is sequentially connected with upper backing plates, fixed plates, stripping pads and stripping plates through guide posts. The fixed plates and the stripping pads are spaced. A middle hole stamping die, a pressure corner stamping die and a nail stamping die are sequentially disposed between the upper die plate and a lower die plate. The middle hole stamping die is used for stamping a middle hole of a square washer. The pressure corner stamping die is used for stamping two face pressure corners of the middle hole of the square washer. The nail stamping die is used for stamping a stamp nail of the square washer. The middle hole stamping die comprises a middle hole finish stamping male die disposed at the lower end of the upper die plate and a middle hole finish stamping female die which is disposed on a cavity plate and which corresponds to the middle hole finish stamping male die. The pressure corner stamping die is disposed on the cavity plate and provided with tilt angles. The nail stamping die comprises a nail stamping female die disposed at the lower ends of the stripping plates and a nail stamping male die which is disposed on the cavity plate and which corresponds to the nail stamping female die. The continuous die structure for square washers has the advantages that stripping is easier, blanks are convenient to remove, and bending deformation occurs rarely.

The invention relates to an internally-enhanced lightweight composite plate and a production method thereof; the internally-enhanced lightweight composite plate is composed of a micro-foamed plastic-wood composite layer and a hollow fiber-reinforced plastic internal enhancement layer; the micro-foamed plastic-wood layer is made by mixing modified plastic particles, wood powder, chitosan, chlorinated polyethylene, stearic acid, azodicarbonamide, baking soda and citric acid, and calendering. The hollow fiber-reinforced plastic internal enhancement layer is formed of hollow pillar tubes and connection plates arranged among the hollow pillar tubes, and the hollow pillar tubes are provided with a hollow tube in the center and V-shaped grooves in the outer surface. The internally-enhanced lightweight composite plate is reasonable in design, simple in structure, unique in shape, and convenient to produce and manufacture, and can be produced and processed just by using traditional fiber-reinforced plastic hand lay-up and plastic mixing as well as die pressing process, the production process is highly mechanized, less labor is reduced, and the internally-enhanced lightweight composite plate is low in production cost, good in strength, high in modulus, high in rigidity and creep-resistant, rarely deforms and bends during usage, and is higher in bearing capacity; the internally-enhanced lightweight composite plate is suitable for the manufacture of products, such as trays, packaging boxes, floor plates, shelving boards, car sheds, roofs, and building forms.

The invention provides a boring cutter installing shaft, a boring assembly and a boring mill. The boring mill comprises a rack and the boring assembly. The boring assembly comprises a boring cutter rotating relative to a workpiece, and the boring cutter installing shaft. The boring cutter installing shaft comprises a shaft body, the shaft body is used for stretching into a to-be-machined hole of the workpiece during using, and the two ends of the shaft body extend out of the two ends of the to-be-machined hole to form two supporting ends. A guiding structure used for guiding moving assembly of the boring cutter so as to enable the boring cutter to machine the to-be-machined hole into a needed forming hole is arranged on the shaft body in the length direction in an extending manner. The boring mill further comprises a driving mechanism used for driving the boring cutter to move along the guiding structure in a guiding manner. When the boring assembly is used for conducting boring, due to the fact that the two ends of the shaft body are the supporting ends and are stably supported, the whole boring cutter installing shaft is good in stability and not prone to bending or deforming, the boring cutter moves along the shaft body in the guiding manner and rotates relative to the workpiece, the boring cutter is stable and reliable when boring the inner circumferential face of the to-be-machined hole, vibration cannot happen, the inner hole machining precision is greatly improved, and the machining quality is guaranteed.

The invention provides a workpiece storage mechanism and workpiece picking and placing equipment. The workpiece storage mechanism comprises a rack, a first tray and a first reinforcing structure, wherein the first tray is used for bearing a workpiece, and the first end and the second end, which are oppositely arranged in a first preset direction, of the first tray, are in sliding fit with the rack, so that the first tray is slidably arranged on the rack in the second preset direction; the second preset direction is perpendicular to the first preset direction; the first reinforcing structure isin sliding fit with the first tray, so that when the first tray slides relative to the rack, the first reinforcing structure exerts upward force on the first tray; and the position between the firstreinforcing structure and the first tray is located between the first end and the second end of the first tray. The workpiece storage mechanism solves the problem of poor bearing capacity of the traystructure in the prior art.

The invention relates to a metal plate machining workbench. The metal plate machining workbench comprises a pedestal; four clamping mechanisms and a rubber base are further arranged on the periphery and in the middle of the pedestal respectively; four pull ropes are arranged on the rubber base; the other ends of the pull ropes are connected to the clamping mechanisms; a cross beam is further arranged between two supporting rods at the bottom of the pedestal; a rotating shaft is arranged in the middle of the cross beam; a pedal is installed on the rotating shaft; the pedal is connected with therubber base through a steel chain arranged on the pedal, so that when the pedal is pressed downwards, the four clamping mechanisms are driven by the ropes to clamp a metal plate through the pull-downaction; the four clamping mechanisms are sequentially connected with the pedal in a pull rope connection mode; and in the actual use process, an operator only needs to step on the pedal to enable theround metal plate to be clamped in four directions; stress is concentrated after clamping; the metal plate clamped in the four directions is not prone to bending deformation when punched by punchingequipment; and therefore the metal plate machining workbench is suitable for clamping the round metal plate and is more reasonable in clamping structure.

The invention provides a manufacturing method of a circuit board, and relates to the technical field of electronic circuits. The manufacturing method of the circuit board provided by the invention comprises the following steps: S1, forming a first conductive circuit on a first surface of a flexible first substrate in a direct printing manner; and S2, forming a second substrate on the second surface of the first substrate, wherein the second substrate is used for improving the hardness of the circuit board. According to the technical scheme, the manufacturing process of the circuit board can besimplified, and the structural stability of the circuit board is improved.

The invention discloses an ultrathin heat sublimation transfer paper. The ultrathin heat sublimation transfer paper comprises a base material, a binding agent and a coating coated on the surface of the base material, wherein the coating comprises carboxymethyl cellulose, sucrose, glycerol, starch, polyvinyl chloride resin, polyethylene glycol fatty acid ester, fumed silica, aluminum oxide, calciumcarbonate, a bactericide, a polysaccharide derivative, kaolin, titanium dioxide, sodium polyacrylate, bentonite powder and a dispersing agent. The invention further discloses a preparation method ofthe ultrathin heat sublimation transfer paper, the preparation method is that the materials of all the components is carried out dissolving, mixing, heating, uniformly stirring, and discharging by steps. According to the method, the polysaccharide derivative and glycerol are added, so that the paper surface is smooth, the phenomenon of bending deformation is not easy to occur, and the heat sublimation printing quality is improved, so that the application of the ultrathin heat sublimation transfer paper is realized, and the transfer rate of the produced paper is improved, and the application ofthe ultrathin paper in the field of thermal sublimation is improved.