39results about How to "Won't cut off" patented technology

A cold precision forging process for a bevel gear is disclosed, and comprises the steps of: cutting the blanking by cylindrical bars; cutting a conical degree on a segmental length of the blank as segmental pre-form for positioning the blank in a die; performing spheroidization for the machined blank to reduce the hardness, then scouring and descaling, phosphorizing, saponifying and lubricating; the first cold precision forging step comprises: upsetting-extruding segmental tooth form in an extrusion mould to obtain a first extrusion which is used as the blank of the second first cold precision forging step; performing spheroidization again for the first extrusion, then scouring and descaling, phosphorizing, saponifying and lubricating; the second cold precision forging step comprises: upsetting-extruding all tooth forms in the extrusion mould to obtain the coarse material of the bevel gear; machining and shaping the coarse material of the bevel gear and cutting unnecessary materials on the end surface to obtain finished products of the bevel gear. The invention further provides an extrusion mould. The invention has higher production efficiency, reduces the material waste, lowers the cost and improves the mechanical property.

The invention provides a sewing machine, comprising a thread cutting mechanism. The thread cutting mechanism is provided with a thread cutting cam and a roller component. The roller component clamps with the thread cutting cam plate. The thread cutting cam plate is fixed at the mains haft of the sewing machine. The roller component is disposed at a driving rod, the driving rod moves between a clamping position and a preventing position, at the clamping position, the roller member clamps with the thread cutting cam plate, at the preventing position, the roller component deviates from the thread cutting cam plate. The driving rod moves between the clamping position and the preventing under the effect of an oscillating force generating mechanism. The driving rod oscillates at the clamping position via movement of the roller member. Oscillation of the driving rod is transmitted to a moveable knife via a thread cutting collecting rod mechanism. The moveable knife is in a reciprocating rotation, and stopped when approaching to a fixed knife. The oscillating force generating mechanism and a cloth pressing member upper-lower driving mechanism driving a cloth-pressing piece are driving by a driving pulse motor. The driving pulse motor, the cloth pressing member upper-lower driving mechanism, and the oscillating generating mechanism are configured in a vertical column part of the sewingmachine. The main shaft of the sewing machine is driven by a motor of the sewing machine.

Disclosed is a mesh sheet wherein a metal mesh composed of metal bands is layered on the surface of a support substrate, and which is used by way of being adhesively attached to the surface of any component having a curved section. The metal mesh is structured such that the narrow bands located between the contact points of adjacent narrow bands have portions formed from curves, so that the mesh can absorb the stress of deformation and follow the shape of highly curved sections without breaking.

The invention discloses a forming die and machining technology of an oblique channel forge piece. The forming die and the machining technology of the oblique channel forge piece are characterized in that the forming die of the oblique channel forge piece comprises a punch, an upper die body, a segmental die pressing block, a lower die body, a positioning block and a radial extruding segmental diebody; the segmental die pressing block is divided into six equal parts to be fixed to the upper die body; an oblique surface is arranged on the inner side of the lower end of the segmental die pressing block; the radial extruding segmental die body is divided into six equal parts to be horizontally placed on the lower die body; the tail end of the radial extruding segmental die body is provided with an oblique surface with the same angle as the oblique surface at the lower end of the segmental die pressing block; a spring is arranged on a lower die main body of the radial extruding segmental die body, and the radial extruding segmental die body is positioned through the positioning block; and the positioning block is fixed to the lower die body through two positioning pins and a screw. According to the forming die and machining technology of the oblique channel forge piece, oblique channel parts are machined through a forging method, the cutting machining quantity is greatly reduced, materials are saved, the technology process is reduced, occupied equipment is little, and the cost is reduced.

The invention discloses a display, which comprises a display panel and an image acquisition device, wherein the display panel is provided with a display area, a peripheral area enclosing the display area and a through hole positioned in the peripheral area; the image acquisition device is assembled on the display panel, and comprises a signal transmission element and an image acquisition element positioned in the through hole; and the image acquisition element is connected with the signal transmission element.

The invention discloses an automatic towing device for a coal mining machine. The automatic towing device comprises a first fixed pulley, a second fixed pulley, a pulling rope and a mobile towing rack, wherein a movable pulley is mounted on the mobile towing rack; a guide roller is arranged on the mobile towing rack; a cable clamping plate of the coal mining machine goes around the guide roller and is connected to the coal mining machine; one end of the pulling rope is fixed on a conveyor head, while the other end of the pulling rope goes around the movable pulley, the first fixed pulley and the second fixed pulley, and is fixed on the coal mining machine. The automatic towing device can avoid the multi-layer stacking problem of the cable clamping plate of the coal mining machine. The invention further discloses an automatic towing method for a coal mining machine. The automatic towing method comprises the following steps: when the coal mining machine moves from a conveyor tail to the conveyor head, the coal mining machine pulls the pulling rope, the pulling rope pulls the mobile towing rack to move toward the conveyor head along a conveyor cable groove. The automatic towing method is simple in operation and convenient for promotion and application.

The invention discloses a manufacturing method for a similar-disc cross-section forge piece with the height-diameter ratio smaller than 0.3. The manufacturing method includes the steps that an alloy ingot is heated to 1,150 DEG C to 1,180 DEG C, and through upsetting, the punching and chambering processes, a rolled blank is manufactured; the rolled blank is put into a furnace and heated to 1,150 DEG C to 1,180 DEG C, the obtained rolled blank is taken out and put on a ring rolling machine, a main roller bushing and a core roller bushing sleeve a main roller and a core roller respectively, thering rolling machine is started, and starts to rotate under driving of the main roller and the core roller, a conical roller is pressed on the end face of the blank, rolling is started, the size is inplace, and then the ring rolling machine is closed; an abnormal-shape ring piece after ring rolling is obtained, a small balance amount of machining is carried out after heat treatment, and the similar-disc cross-section forge piece can be obtained. According to the manufacturing method, the material utilization rate is greatly increased, metal filters cannot be cut off through a small balance amount of machining, the service life of a product is prolonged, the comprehensive performance of the product is improved, and the manufacturing period is short; through the technical advantages of thelocal, continuous and the small deformation amount of ring rolling, if a large-tonnage hydraulic machine is manufactured through small-tonnage equipment, the forge piece can be manufactured, and the equipment cost and loss are greatly reduced.

The invention belongs to the technical field of medical instruments, and discloses a knotting-free anchor and an anchor implantation instrument. The knotting-free anchor comprises an anchor body, an axial center hole axially penetrating through the anchor body is formed in the anchor body, and the anchor body comprises a threaded connection section. At least one notch is formed in the edge of theexternal thread of the threaded connection section. The knotting-free anchor has the advantages that sutures can be prevented from being cut off by the knotting-free anchor, and accordingly the fixingeffect of the knotting-free anchor is improved.

The invention discloses a paper cutting device for rolled-up sketching paper/vegetable parchment. The paper cutting device is mainly characterized in that a fan-shaped shaft seat plate is arranged at the right end of a handle; a hollow shaft for being sleeved with and inserted in cylinder core inner holes of rolled-up sketching paper/vegetable parchment is arranged on the inner end face of the fan-shaped shaft seat plate; the axis of the hollow shaft, the left horizontal central axis of a semicircular inner hole of the handle and the right horizontal central axis of the semicircular inner hole of the handle coincide together; an external thread connected with a butterfly nut is arranged at the left end of the hollow shaft; a horizontal boss protruding forwards is arranged at the front end of the handle in the left-right direction; a lug base is arranged at the left end of the horizontal boss, and a lug base is arranged at the right end of the horizontal boss; a pull rod is arranged between the lug bases at the left end and the right end; the pull rod is fastened on the lug bases at the left end and the right end through nuts; a cutter used for cutting off sketching paper/vegetable parchment is arranged on the front end inclined face of the horizontal boss; and zigzag sharp edges evenly distributed are arranged on the lower portion of the cutter in the left-right length direction. The paper cutting device can rapidly cut off sketching paper/vegetable parchment, and is convenient to use. The work efficiency is remarkably improved.

A rolling forming method of a C-shaped section forge piece includes the following steps that an alloy ingot is heated to 1150-1180 DEG C, and then the alloy ingot is subjected to upsetting and drawingto improve a cast-state structure of the alloy ingot; then punching, hole expanding and rounding procedures are carried out to manufacture a prefabricated blank; the prefabricated blank is heated to1150-1180 DEG C in a furnace, and the prefabricated blank is taken out and placed on a ring rolling mill; a main roller bush sleeves a main roller, and a core roller bush sleeves a core roller; the ring rolling mill is started and starts to rotate under the driving of the main roller and the core roller, a conical roller a and a conical roller b are pressed on the two end faces of the prefabricated blank respectively, rolling is started, and after the required size is achieved, the ring rolling mill is shut down to obtain the C-shaped forged piece obtained after ring rolling. By the adoption of the method, the material utilization rate is greatly improved, only small allowance machining is needed after heat treatment, and metal fiber cannot be cut off, so that the service life of a productis prolonged, the comprehensive performance of the product is improved, and the manufacturing period is short.

The invention discloses a solar-powered road line drawing machine. The machine comprises a device body of a solar cell panel device capable of tracking the sun irradiation direction by adjusting is arranged on the top end surface of the machine; a lifting cavity is formed in the position, close to the left side, in the bottom end face of the device body, a cleaning box capable of moving up and down is arranged in the lifting cavity, and a cleaning device capable of cleaning a road surface needing paint spraying in advance is arranged in the cleaning box. According to the invention, an angle-adjustable solar cell panel is arranged, the power source is cleaner, by arranging the cleaning device capable of cleaning the road surface needing to be drawn in advance in the left end of the device body, it is guaranteed that line drawing of the line drawing machine on the road surface is not separated by sundries on the ground, meanwhile, the cleaned road surface is more beneficial to combination of paint and the road surface, and the paint surface is not prone to falling off.

The invention discloses flocked yarn gluing equipment. The flocked yarn gluing equipment comprises a first roller, a second roller, a third roller, a fourth roller, a glue containing tank, a low-pressure nozzle, a pneumatic lifting scraper, a width-adjustable Teflon foam material and an ultrasonic micro-nano bubble generating device; the pneumatic lifting scraper utilizes scraper pressure to reinforce the soaking of a materials by glue; the low-pressure nozzle is used for blowing off redundant glue on the surface of a yarn; the width-adjustable Teflon foam material is used for adjusting the width of a gap between the upper layer and lower layer of the foam material so as to control the thickness of a glue material layer; and the ultrasonic micro-nano bubble generating device is used for generating micro-nano bubbles in the glue. The invention further discloses a gluing method of the flocked yarn gluing equipment. With the flocked yarn gluing equipment and the gluing method of the invention adopted, accurate control over the thickness of the glue material layer in a gluing process and control over the size of air holes in the glue material layer can be achieved, and therefore, it isguaranteed that a flocked product has good air permeability, hand feeling and high flexibility; and the flocked product manufactured in subsequent processes can be used as a high-grade fabric.

The invention discloses a color spinning fiber dyeing device, which includes a cleaning box, an upper cover, a heat preservation shell, a lower pressing plate, a dye box, a warm air box, a resistance plate, a movable groove, a limit groove, a scraper, an observation mirror, a housing Slots, imports and exports. The beneficial effects of the invention are: the observation mirror is a concave lens structure, which can enlarge the dyeing condition of the fiber to the human eye, so that the dyeing effect can be observed accurately; Avoid being scraped off; the scraper is a right-angled triangle structure with a right angle on the right side, which ensures that the dye is hung when going out, so that the fiber will not be cut when the dye is scraped off; the insulation shell is electrically connected to the lower pressure plate, the resistance plate and the heater box. All parts are easy to be controlled uniformly; the bottom of the scraper, the limit groove, the inlet and the outlet are located at the same vertical height, so that the fiber running process is smooth.

The invention relates to the field of safety inspection equipment, in particular to safety inspection identifying tag gluing equipment. The safety inspection identifying tag gluing equipment comprisesa first wheel, a second wheel, an auxiliary tag, a main tag, nodes, shearing mechanisms, pushing mechanisms and a safety inspection instrument. Each shearing mechanism is provided with a motor, a cam, a rotating wheel, a lifting rod, a first cutter, a second cutter and a spring. Each pushing mechanism comprises an electric push rod and a support. By means of the equipment, tags can be glued to parcels with problems detected by a safety inspection instrument, and identification and extraction by safety inspection staff are convenient.

The invention discloses a heavy pipeline hoisting mechanism for highway engineering construction. The heavy pipeline hoisting mechanism comprises a hoisting vehicle, a first hoisting device, a second hoisting device, an inverted-U-shaped electromagnetic fastening assembly, a bilateral one-way fastening chain and an expansion type chain expander. The first hoisting device is arranged on the hoisting vehicle, the second hoisting device is arranged on the hoisting vehicle, the first hoisting device and the second hoisting device are arranged side by side, the inverted-U-shaped electromagnetic fastening assembly is movably arranged on the first hoisting device, the bilateral one-way fastening chain is movably arranged on the second hoisting device, and the inverted-U-shaped electromagnetic fastening assembly is movably arranged on the second hoisting device. And the expansion type chain expander is movably arranged on the bilateral one-way fastening chain. The invention belongs to the technical field of heavy pipeline hoisting equipment for highway engineering construction, and particularly relates to a heavy pipeline hoisting mechanism for highway engineering construction, which can easily clamp and release pipelines, can support the pipelines, is not easy to bend the pipelines and is convenient to align the pipelines.