754 results about "Serration" patented technology

The invention discloses a totally-closed exchange platform laser cutting machine and a using method, and belongs to the technical field of cutting machines, the totally-closed exchange platform laser cutting machine comprises a cutting machine tool body, a cross beam horizontally moving in the length direction of the cutting machine tool body, a laser cutting head installed on the side edge of the cross beam, and a protective shell fixed to the end of the cutting machine tool body and used for protecting a cutting area. Liftable universal balls are arranged between the ends of the adjacent sawtooth plates and are used in cooperation with a lifting mechanism composed of a supporting frame, a first rack, a rotating shaft, a first gear, a second rack, a hollow box, a sliding rod and a first spring, so that after a plate is cut and moved to the position of the end plate, the universal balls can be automatically controlled to ascend, and the plate cutting efficiency is improved. According to the feeding device, the cut plates are jacked up, separation of workpieces and waste materials is facilitated, the plates can be supported in the feeding process, in addition, position adjustment is conducted in cooperation with the centering and correcting mechanism, and the precision of the plates in the placing process is guaranteed.

The invention relates to the technical field of milling cutters, in particular to a multi-tooth micro-blade milling cutter and a manufacturing method and application thereof. The multi-tooth micro-blade milling cutter comprises a cutter handle and a cutter head body, wherein the cutter head body is fixedly connected to one end of the cutter handle; the multiple cutter teeth are arranged on the outer side face of the cutter head body, and each cutter tooth extends to the tail end, close to the cutter handle, of the cutter head body from the top end, away from the cutter handle, of the cutter head body; each cutter tooth comprises a front cutter face, a rear cutter face and a cutting edge, the cutting edge is provided with a plurality of continuously-distributed micron-sized protruding micro-blades, the micro-blades form an arc-shaped sawtooth structure, the micro-blades extend to the front cutter faces and form micro grooves in the front cutter faces, the micro-blades extend to the front cutter faces and form micro grooves in the front cutter faces, and the micro-blades extend to the rear cutter faces and form micro grooves in the front cutter faces. The multi-tooth micro-blade milling cutter has the structure of the front angle of the front cutter face of the milling cutter tooth and the rear angle of the rear cutter face of the milling cutter tooth, the linear cutting blade of the traditional cutter tooth is dispersed into micro blades, the stress concentration of the cutter is reduced, a plurality of convex micro blades are in grinding motion on the machining face in the milling process, and the milling and grinding combined machining effect is formed. Unification of machining efficiency and machining precision is achieved.

The invention discloses double-face longitudinal submerged arc welding steel pipe manufacturing equipment, and relates to the technical field of longitudinal submerged arc welding, the double-face longitudinal submerged arc welding steel pipe manufacturing equipment comprises a base and a storage rack, the top of the base is provided with two second sliding rails and two walking mechanisms, the tops of the two walking mechanisms are fixedly connected through a portal frame, and the inner side of the portal frame is provided with a welding flux recycling structure; the welding flux recycling structure comprises a hollow storage box, the hollow storage box is fixedly connected with the portal frame through a plurality of mounting frames, two notches are formed in the inner side of the hollow storage box, a conveying belt is arranged in the hollow storage box, and a sawtooth belt is fixedly connected to the outer portion of the conveying belt. And a motor I is arranged outside one mounting frame. By means of the double-face longitudinal submerged arc welding steel pipe manufacturing equipment, the problem that welding flux or welding slag pieces cannot be completely recycled can be solved, and meanwhile the problem that two end areas of a steel pipe need secondary supplementary welding can be solved.

The invention relates to the technical field of ultrasonic cutting, in particular to a sawtooth-shaped circular knife ultrasonic cutting acoustic system which comprises a main shaft, an ultrasonic vibrator and an ultrasonic cutting tool, the ultrasonic vibrator is connected with the main shaft, the ultrasonic cutting tool is installed on the side, away from the main shaft, of the ultrasonic vibrator, and a plurality of sawtooth grooves are formed in the peripheral face of the ultrasonic cutting tool. The sawtooth grooves are annularly distributed at equal intervals, and sawteeth are formed between every two adjacent sawtooth grooves. According to the ultrasonic cutting tool, the sawtooth grooves are formed in the peripheral surface of the ultrasonic cutting tool, so that the machining mode of the workpiece is intermittent cutting, the contact time of the ultrasonic cutting tool and the workpiece is shortened, and then friction resistance generated by contact between the ultrasonic cutting tool and the workpiece is reduced; heat generated between an ultrasonic cutting tool and a workpiece in the workpiece machining process can be greatly reduced, heat is released through non-contact gaps, and cutting force is reduced by reducing friction resistance.

The invention discloses easy-open lid punch forming equipment, which relates to the technical field of punching equipment, and comprises a machine body, a punch forming part and a conveying part, the unwinding component is arranged at the front end of the machine body and is used for releasing an aluminum coiled material; the blanking part is mounted at the front part of the machine body and is used for cutting the released aluminum coiled material into aluminum sheets with the same size; the slicing component is mounted at the rear part of the machine body and is used for prefabricating the sheets into wafers with the same shape; and the stress relieving part is mounted in the middle of the machine body and used for releasing the stress of the aluminum coiled material. According to the invention, the blanking component is arranged to blank the released aluminum coil into the aluminum sheets with the same size, and the die for blanking the aluminum coil is arranged to be of a structure with sawteeth on one side, so that the aluminum sheets with the sawtoothed edges can be blanked, and the protruding parts of the outermost edges of the front and rear sides of the sheet with the shape can be cut into complete round sheets; therefore, the areas of non-stamping parts on the front side and the rear side of each aluminum material are reduced, and the waste amount of the aluminum materials is reduced.

An agricultural mixer knife for use with an agricultural mixer apparatus may include a plate with opposite sides and opposite faces and a perimeter between the sides. The plate has a cutting edge which is serrated with primary and secondary edge sections. The primary edge sections may have a sharp tip formed by a first converging surface and a second converging surface. The second converging surface may have a first region and a second region, with the first region being concave and depressed into the plate with respect to the second region. In some embodiments, the first region may be elongated along a first axis extending substantially parallel to the sharp tip of the primary edge section. In some embodiments, the first converging surface may be substantially planar, and may have a cladding material applied thereto.

The MPP cable protection pipe positioning and cutting equipment comprises a base, a moving assembly, a first fixing assembly, a cutting assembly and a positioning assembly, wherein the moving assembly, the first fixing assembly and the cutting assembly are sequentially arranged on the base; the positioning assembly comprises a positioning plate, a blocking strip rotationally installed on the positioning plate and an extension rod. The mounting rod of the positioning plate is detachably and fixedly connected with the extension rods, and the extension rods are detachably and fixedly connected with one another; the cutting assembly comprises a cutting knife, a transmission shaft, a rotation driving device, a connecting shaft which is slidably and elastically installed on the transmission shaft and slidably installed on the lifting plate, a driving friction plate fixedly installed on the connecting shaft, a driven friction plate intermittently attached to the driving friction plate, a lifting mechanism and a first reciprocating mechanism driven by the connecting shaft. The reciprocating mechanism II is driven by the driven friction plate; accurate positioning and automatic cutting are achieved, and it is guaranteed that the lengths of the cut protection pipes are uniform; and the cutting knife adopts a serrated knife, so that the required working space is small during cutting, and the safety coefficient is high.

A refrigerant compressor includes an impeller including vanes having a trailing edge with one or more serrations.

The present invention relates to the technical field of knives, and specifically relates to a knife structure with side serrations and a manufacturing process therefor, to ensure the strength and impact resistance of a knife body, preventing the blade thereof from easily rolling or chipping during chopping and mincing, thus making it suitable for cutting and chopping. Strip-shaped side serrations have a pulsed compression effect on food ingredients; and the fluctuation generated when pulling the strip-shaped serrations back and forth accelerates the transverse splitting of the food ingredients, forcing the food ingredients to tear apart on two sides perpendicular to the direction of cutting; thus, cutting force that acts on the blade is reduced, providing protection for the blade, and thereby extending the durability of the sharpness of the blade. After being used for a period of time, the blade wears off upwards, such that the strip-shaped serrations are exposed, enabling the blade to still maintain good cutting performance; in addition, a user can restore the blade into the original state of having a cutting edge through sharpening. Thus, the present invention effectively solves the technical problem in the prior art of a serrated knife being unable to chop and mince, unsuitable for peeling, and difficult to sharpen.

A self-sharpening alloy pasture serrated knife belongs to the technical field of pasture machinery and comprises a knife body, a first reinforcing layer is arranged at the front end of the back of a cutting edge of the knife body, and a plurality of second reinforcing layers are evenly distributed on the back of the cutting edge of the knife body behind the first reinforcing layer. A sawtooth structure is formed after the cutter body cutting edges between the adjacent second reinforcing layers or between the second reinforcing layers and the adjacent first reinforcing layers are abraded. Through the novel design, the wear resistance and the cutting efficiency of the cut-off tool are integrally improved, and the characteristics of high efficiency and low resistance in the cutting process are also realized. The raw materials are saved, the power output of the harvesting machine is reduced, the replacement frequency of the cut-off tool is reduced, meanwhile, the method can be applied to other agricultural straw cut-off, smashing and mowing tools, and great social and economic benefits are achieved.

The invention discloses an assembly type adjustable pipeline supporting and hanging frame which comprises an upper U-shaped frame, the upper U-shaped frame comprises two vertical rods, the bottoms of the two vertical rods are connected together through a bottom cross arm, a middle cross arm is arranged in the middles of the two vertical rods, the two vertical rods are connected together through a connecting piece and an L-shaped corner connector, and the vertical rods are of a rectangular pipe structure. An opening groove is formed in the end face of the inner side of the rectangular pipe in the length direction of the rectangular pipe, inclined clamping teeth are arranged on the portion, at the opening groove, of the inner wall of the rectangular pipe, a connecting piece is clamped into the rectangular pipe and comprises a connecting block, inclined sawteeth and a bolt are arranged on the surface of one side of the connecting block, and the inclined clamping teeth and the inclined sawteeth are opposite in inclined direction and meshed together. The bolt extends out of the opening groove, penetrates through an L-shaped corner brace arranged on the outer wall of the vertical rod and is locked and fixed through a locking nut, and the horizontal section of the L-shaped corner brace is fixedly connected with the middle cross arm. The support hanger structure is convenient to adjust, and can be conveniently expanded to add other components.

The portable saw blade assembly comprises a saw blade and a saw blade protection shell, the saw blade is provided with a knife handle used for being held and a knife body connected to the knife handle, sawteeth are arranged on one side of the knife body, the saw blade protection shell is provided with a containing cavity with an opening in the side portion, and the containing cavity is provided with a first side wall capable of being attached to the knife body and a second side wall arranged corresponding to the sawteeth. The knife body can enter the containing cavity from a side opening of the containing cavity in the direction perpendicular to the first side wall or in the direction inclined to the first side wall, a locking structure is arranged between the knife handle and the saw blade protection shell, and when the knife body is placed in the containing cavity, the locking structure can lock the knife handle and the saw blade protection shell so as to limit the knife body to be separated from the containing cavity. By means of the structure, the blade body of the saw blade can enter or leave from the side opening of the containing cavity, blade installing and pulling operation is convenient and fast, when the blade body is placed in the containing cavity, locking can be conducted through the locking structure, the possibility that the blade body is separated from the saw blade protection shell is reduced, and carrying is convenient.

An ultrasonic scalpel bit, comprising a bit body in a flat structure, two symmetrical end faces being respectively provided in the thickness direction. At least one side of each end face is provided with a cutting part in the axial direction thereof; the cutting part comprises a surface, at least two saw tooth rows being provided on the surface, and each saw tooth row being formed by arranging a row of saw teeth in the axial direction of the bit body; and a cutting direction of the saw teeth is parallel to the axial direction of the bit body, and the saw tooth rows are arranged side by side at intervals; a cooling channel is provided between the adjacent saw tooth rows. The cooling channels having a flow guide effect extend from the proximal end of the bit body to a tip part at the distal end, thus guaranteeing that cooling water can be effectively transferred to the tip so as to achieve a good cooling effect on tissue at a deep position. The cooling channels are close to the saw teeth so that heat exchange can be performed quickly.

A turbine blade includes a root section extending from a bottom side of a platform. The root section includes a first end and a second end aft of the first end. A first plurality of serrations is formed on a pressure side of the root section. A second plurality of serrations is formed on a suction side of the root section. Each serration of the second plurality of serrations extends on the suction side from the first end to the second end of the root section. A first scarf cut is formed on each serration of the second plurality of serrations such that each serration of the second plurality of serrations is tapered at the first end of the root section.

A building facade system is provided with a unified anchor assembly having an anchor member. The anchor member has a blade portion, an anchor fist and an anchor fork. The blade portion has a head at the proximal end, a lateral surface having serrations and a slotted opening. The anchor fist has a channel and a flange, the channel receives the head of the blade portion to slide within the channel. The anchor fork has tines defining a slot with an opening therebetween and a serrated surface to engage the serrations of the blade portion. Upon installation onto a building, the anchor fork is seated on an upwardly extending flange of a structural member affixed to a building floor slab. The anchor fist is secured to a vertical mullion by shear connection made by fasteners coupling the flange of the anchor fist to a lateral surface of the mullion.

The invention provides a winding device and pole piece rolling equipment, the winding device comprises a winding drum assembly and a cutting assembly, the winding drum assembly is provided with a winding drum, the winding drum is configured to rotate and wind a pole piece belt, and the axis of the winding drum is arranged in the first direction; the cutting assembly is arranged on the upstream of the winding drum assembly, the cutting assembly is configured to cut off the pole piece belt, and the cutting assembly comprises a moving mechanism and a cutting blade arranged on the moving mechanism; and the moving mechanism drives the cutting blade to the end, in the first direction, of the pole piece belt to be cut and slides in the first direction to cut the pole piece belt. The moving mechanism can drive the cutting blade to slide in the first direction so as to cut the pole piece belt, the pole piece belt is cut off in a cutting-up mode, a formed fracture is smooth and free of sawteeth, extrusion of the fracture on the next circle of pole piece belt after the fracture enters an empty winding drum can be reduced, the surface quality of the pole piece belt is improved, waste is reduced, and therefore the production yield of pole piece belt winding is improved.

The utility model relates to a riveting piece, in particular to a thin plate pressing rivet lining which comprises a body, a first pressing rivet and a second pressing rivet, the body is arranged to be in an annular shape extending in the axial direction, and the body is provided with a first face and a second face which are oppositely arranged in the axial direction; the riveting part is connected to the first surface of the body, the outer diameter of the riveting part is smaller than that of the body, so that the riveting part and the body form a step-shaped structure, and the outer diameter of the riveting part is smaller than the inner diameter of the mounting hole; wherein a sawtooth part is arranged on the peripheral annular wall of the riveting part, a gap is formed between the sawtooth part and the body, and the gap is used for containing at least part of the deformed mounting plate. By means of the structure, the sawtooth part used for extruding the mounting plate can be arranged on the periphery of the riveting part, machining is easy, and the sunken condition of the riveted plate can be avoided.

The invention discloses a steel pipe piece vertical plate multi-angle cutting rapid positioning device which comprises a plurality of cutting workbenches, connecting plates are arranged in the cutting workbenches, a plurality of cutting sawtooth plates are connected to the connecting plates in a clamped mode, waste grooves are formed among the cutting sawtooth plates, and waste boxes are arranged at the bottoms of the cutting workbenches. An angle adjusting piece is arranged on the cutting workbench, the vertical plate is positioned on the cutting sawtooth plate through the angle adjusting piece, a cutting mechanical arm is arranged on the front side of the cutting workbench, and a laser cutting head is arranged on the cutting mechanical arm. The vertical plate is placed on the cutting sawtooth plate, meanwhile, the angle adjusting piece is used for positioning the vertical plate, when bevel angles of different angles need to be cut, only the connecting plate needs to be rotated, then the vertical plate is driven to rotate, then the laser cutting head is used for cutting the vertical plate at the corresponding angle, and the structure can be adjusted through the angle adjusting piece; and the vertical plate is positioned at different angles and is matched with cutting of the laser cutting head, so that different oblique angles are cut, and the applicability is improved.

A structural beam and deck assembly containing portions of beam members interconnected by a deck assembly. Beam members have horizontal top and bottom flange elements interconnected by one or more vertical web member. The top flange of the beam members is serrated such that a series of serrations protrude horizontally in at least one direction from a top of the one or more vertical web member or are cut-out from the flange of a rolled shape. Adjacent beam and deck assemblies are installed such that attachment of one portion of a beam member to another results in the completed cross section of the beam member. In one embodiment, the serrated top flange and at least a portion of the web member are intended to be encased by a horizontal concrete slab. The slab material is capable of encasing all exposed surfaces of and curing around each serration to transfer horizontal shear forces between the serrated top flange and the slab material such that the beam members and slab behave compositely.

The utility model relates to the technical field of garden pruning instruments, and particularly discloses a cylindrical pruning cutter which comprises a cutter holder and a blade, the cutter holder is arranged in a circular ring shape, a fixing part is arranged at one end of the cutter holder, a mounting part is arranged at the other end of the cutter holder, the blade is in a circular ring shape, one end of the blade is fixedly connected with the mounting part, and sawteeth are arranged at the other end of the blade in a surrounding mode. The utility model further discloses a trimming device with the trimming cutter. The cylindrical shape trimming cutter and the trimming device are simple in structure and high in trimming efficiency.

The utility model relates to the technical field of saw blades, in particular to a saw blade convenient to mount and dismount, which is simple in structure, adopts a split type, can directly replace part of the saw blade with damaged saw teeth, and does not enable an output shaft of a cutting machine to rotate in the replacement process. Comprising a mounting ring fixed to an output shaft, a plurality of mounting grooves are formed in the outer surface of the mounting ring in a circumferential array shape, a saw blade is placed in each mounting groove, a fixing ring is fixed to one side of the mounting ring, a driving mechanism is arranged in the fixing ring, and a driving block moving in the radial direction of the mounting ring is arranged at the output end of the driving mechanism; a through hole is formed in the mounting groove and communicates with the fixing ring, a pressing plate is slidably connected into the through hole and fixedly connected with a connecting plate, a guide hole is formed in the connecting plate, and a guide shaft penetrating through the guide hole is fixed to the driving block.

The present invention relates to the technical field of slitting machines, and discloses a fully automatic wood precision slitting machine, including a table top, the top of which is provided with a vertical clamping mechanism, the vertical clamping mechanism including: a telescopic cylinder 1, and a connecting rod fixed to the top of the table top. The fully automatic wood precision slitting machine is provided with a vertical clamping mechanism, the telescopic cylinder 1 drives the motor 1 to move downward, the motor 1 drives the slide block to move downward, the slide block drives the conical block to move downward through the serrated groove, the conical block drives the I-shaped block to move downward, the I-shaped block drives the spring 2 to move downward, the spring 2 drives the clamping column to move downward until the bottom of the clamping column contacts the wood, and if the contact force is too large, the spring 2 is over-extruded, the spring 2 causes the conical block to squeeze the spring 1, and the conical block moves upward on the serrated groove, so that the contact force on the wood is not too large, and the wood is vertically clamped during cutting.

The invention relates to the technical field of cross-flow wind wheels, in particular to a cross-flow fan blade tail edge sawtooth structure and a cross-flow wind wheel applying the cross-flow fan blade tail edge sawtooth structure. The sawtooth structure comprises a fan blade body, and the peripheral contour of the fan blade body is defined by a fan blade root edge, a fan blade tail edge, a fan blade top edge and a fan blade front edge; the fan blade main body is provided with a pressure surface and a suction surface, the pressure surface and the suction surface are oppositely arranged, the pressure surface is concavely arranged towards the suction surface, so that the suction surface is convexly arranged, and the section shape of the pressure surface, the section shape of the suction surface, the fan blade root edge and the fan blade top edge are arranged in an arc shape; a plurality of notches are formed in the tail edge of the fan blade in an inwards-concave mode, and the adjacent notches are different. By means of the innovative structural design, noise is effectively reduced, and meanwhile it is guaranteed that the core aerodynamic performance of the fan blade is stable.

The present invention discloses a saw blade sawtooth welding device, comprising a device body, a box body is provided in the middle of the bottom end of the device body, and fans are fixedly connected to the left side wall of the box body with uniform distribution, and the fans are all provided on the left side of the filter screen, and a dust collecting bin is provided on the right side of the filter screen, and a dust suction pipe is provided on the right side of the top of the box body, and the end of the dust suction pipe away from the box body passes through a fixed block and is fixedly connected to a dust hood, and a welding mechanism is provided on the rear side of the middle of the top of the workbench. In the present invention, a box body is provided inside the device body, and a fan is provided inside the box body. By starting the fan, negative pressure can be formed inside the box body, so that when in use, dust generated during welding can be concentrated through the dust suction pipe and the dust hood, and the sucked dust will fall into the dust collecting bin under the obstruction of the filter screen and the action of gravity, making it convenient for people to use.

To provide a door closer allowing work load of attachment work of the door closer to be reduced.SOLUTION: A door closer is provided with: a first bracket piece 11; a second bracket piece 12 attached on a door frame or a door together with the first bracket piece 11 to be allowed to rotate around a specific axis line 3 relative to the first bracket 11, on which a first serration 35 is arranged; a stop member 50 on which a second serration 51 engaging with the first serration 35; an operation member 60 operated in a first direction and a second direction by an operator; and a linkage part 22 integrating the first bracket piece 11 and the second bracket piece 12 such that those are not allowed to rotate relatively when the operation member 60 is operated in the first direction.SELECTED DRAWING: Figure 1

A transmission includes a shaft-hub connection designed as a serration and having an axial extent along a shaft axis, and an oil supply line to the serration in order to lubricate a relative movement in the serration between a shaft side and a hub side of the shaft-hub connection. The oil supply line is designed to open from radially inward directly into a cavity on the serration to enable supply of oil to the serration at an oil pressure that prevails in the cavity.

The present application relates to a formwork construction device for a serrated cantilevered eave on a building facade, and relates to the technical field of cantilevered eave construction, including a formwork body, a serrated block, and a connecting device including: a connecting block, a connecting groove is provided on the formwork body, the connecting block is slidably arranged on the connecting groove and plugged with the serrated block; a driving mechanism is arranged on the formwork body and connected to the connecting block; a locking assembly is arranged on the serrated block and is used to connect and position the connecting block. The present application connects a plurality of formwork bodies together for casting to form a serrated wall surface, and when casting an ordinary wall surface, the locking assembly is unlocked, and then the driving mechanism is started to drive the connecting block to move into the connecting groove, and then a plurality of formwork bodies are connected together for casting construction of the ordinary wall surface; therefore, only one set of formwork is needed to realize the casting of different wall surfaces, and the formwork disassembled in the front can also be applied to the subsequent construction, thereby reducing the construction cost and improving the construction efficiency.

The invention relates to the field of saw blades, in particular to an efficient sawing band saw blade and sawing machining equipment. According to the band saw blade, the special arc liquid storage groove structure is arranged on the tooth groove outline, so that cutting liquid can effectively enter saw seams and infiltrate the rake face of the saw teeth, the cutting temperature is reduced, adhesive abrasion is delayed, and the saw cutting service life is remarkably prolonged. The tooth-shaped structure of the band saw blade comprises a plurality of continuous arc sections, the optimized cutter angle and the optimized diversion trench design, and the cooling effect and the cutting performance are further enhanced. Practical application shows that the efficient sawing band saw blade shows excellent cooling and wear-resisting performance under the high-linear-speed sawing working condition.

The utility model relates to fire fighting equipment, concretely relates to a fire axe, including axe handle and the axe body that sets up in the one end of axe handle, the hollow structure of axe handle, is set with a folding mechanism in the axe handle, the folding mechanism includes the moving pipe of the sleeve setting in the inside of axe handle, the first sawtooth blade of rotation folding is embedded on the moving pipe, the first sawtooth blade is through the rotation pin of hollow structure and is rotationally arranged in the moving pipe end, is set with the connecting hole of a plurality of hole structure on the axe body, and the second sawtooth blade is rotationally arranged on the axe body, the utility model not only has the function that the traditional fire axe breaks and dismantles, but also has the function that assists the rope drop of fireman.

A chopper blade for use in an agricultural harvester chopper to chop crop residue includes a blade body and a hard face. The blade body includes a cutting edge of the chopper blade. The hard face is applied to a surface of the blade body and is harder than the blade body. The hard face includes a sawtooth pattern along the cutting edge such that during use of the chopper blade, the cutting edge wears to the sawtooth pattern to match the sawtooth pattern, thereby forming corresponding sawteeth in the cutting edge, and the sawtooth pattern becomes part of the cutting edge of the chopper blade.