40results about How to "Small cutting resistance" patented technology

The invention discloses a silicon carbide crystal cutting liquid supply device and a silicon carbide crystal cutting process, and relates to the technical field of silicon carbide machining.The silicon carbide crystal cutting liquid supply device comprises a liquid supply system, a control module and a first liquid supply pipeline used for spraying mortar to a cutting wire net; the second liquid supply pipeline is used for spraying mortar to the silicon carbide crystals; the nozzles B of the second liquid supply pipeline are positioned obliquely above the two sides of the cutting crystal; wherein the radius of the silicon carbide crystal is R, the transverse distance from the nozzle B of the second liquid supply pipeline to the cutting center is R + 20 mm to R + 200 mm, and the distance from the nozzle B of the second liquid supply pipeline to the vertical direction of the cutting center is R + 20 mm to R + 150 mm; and the first liquid supply pipeline and the second liquid supply pipeline are separately and independently controlled by the control module. The problems that in the existing silicon carbide crystal cutting process, the temperature control capability is insufficient, abrasive supply is insufficient, the cutting surface type quality is poor, and the productivity efficiency is low are solved.

The invention relates to a rice blanket seedling throwing machine dicing device and a dicing method thereof.The rice blanket seedling throwing machine dicing device comprises a support stretching across a seedling box, cutter mechanisms and a driving mechanism are arranged on the support, and the driving mechanism is used for driving the cutter mechanisms to act so as to cut a seedling blanket longitudinally conveyed from the upper portion of the seedling box to the lower portion of the seedling box; the multiple sets of cutter mechanisms are arranged on the support in the transverse direction in an up-down moving and rotating mode, the driving mechanism comprises a cutter downward-pressing driving assembly and a cutter steering driving assembly, and the driving end of the cutter downward-pressing driving assembly and the driving end of the cutter steering driving assembly are both connected with the multiple sets of cutter mechanisms. All the cutter mechanisms can be driven by the cutter downward pressing driving assembly to move up and down at the same time so as to longitudinally cut the seedling blanket into strips, and can be driven by the cutter steering driving assembly to steer by 90 degrees at the same time so as to transversely cut the longitudinal strips of the seedling blanket into blocks. The device has the advantages of being simple and compact in structure, high in cutting efficiency, good in seedling block soil bowl integrity, small in root damage and the like.

The invention relates to the technical field of diamond tools, in particular to a diamond saw blade with bidirectional tooth protection tool bits and a production process of the diamond saw blade. The plurality of groups of tool bits convexly extend to the outer side of the base body and are distributed in an annular array by taking the base body as the center; the chip grooves are formed between the adjacent groups of tool bits and comprise first groove bodies for separating the adjacent groups of tool bits and second groove bodies formed by sinking from the first groove bodies to the interior of the base body; wherein the second groove body is concaved towards the cutter head side from the connecting position of the second groove body and the first groove body to form protection teeth, each group of cutter heads is provided with two groups of protection teeth, and the two groups of protection teeth are distributed on the two sides of the group of cutter heads. The tool bit is specially designed to be in the two-way tooth protection shape, so that more chip grooves are formed in the saw blade cutting and contact face, the two-way tooth protection can effectively protect a base body and prevent the base body from being worn too fast and thinned, the large U-shaped chip grooves of the tool bit can take away more gravel and chips when concrete granite is cut, cutting resistance is reduced, and working efficiency is improved.

The invention relates to the technical field of reactors, and specifically discloses a pesticide processing suspension mixing reactor, comprising a mounting frame and a reactor body fixedly mounted on the mounting frame, wherein a self-adjusting stirring and cutting mechanism and a grinding auxiliary crushing mechanism are arranged in the reactor body, wherein the self-adjusting stirring and cutting mechanism comprises a plurality of stirring and chopping components evenly spaced, a driving component for driving the stirring and chopping components, an adjusting component and a hollow rotating shaft rotatably mounted between the top inner wall and the bottom inner wall of the reactor body, wherein the stirring and cutting blades rotate at high speed to rapidly dissolve soluble solid pesticide original drug particles in a solvent, thereby increasing the dissolution rate, and the high-speed rotating stirring and cutting blades generate strong shearing force, which can effectively break the attraction between solid pesticide original drug particles, prevent particle agglomeration, and simultaneously cut larger particles into smaller particles, so that the particles are rapidly and evenly dispersed in water, thereby ensuring the consistency of particle size, and forming a uniform and stable pesticide suspension.

The invention discloses a cutting knife mechanism of a rotary weeding machine, and relates to the technical field of plant protection equipment, the cutting knife mechanism comprises a cutter head and a plurality of cutting knives, the plurality of cutting knives are uniformly mounted on the cutter head, the cutting knives are of a symmetrical structure, the longitudinal symmetrical line of the cutting knives is the central axis of the cutting knives, and the central axis of the cutting knives passes through the circle center of a circle where the cutter head is located. Energy consumption can be reduced, the grass winding rate can be reduced, and the weeding efficiency can be improved.

This utility model discloses a rubber hose cutting device, relating to the field of rubber hose processing technology. The utility model includes: an operating table, sleeper strips, a lifting component, a lower pressure roller, and an electric lifting rod; support columns are fixedly connected to the four corners of the lower surface of the operating table. This utility model ensures stable conveying of the rubber hose through the operating table, sleeper strips, and conveying rollers. The lifting component and the lower pressure roller form an adjustable clamping mechanism, achieving synchronous lifting and lowering via a hydraulic rod, adapting to the fixing requirements of different pipe diameters. The electric lifting rod drives the cutting wheel for automated cutting, guide rollers guide the pipe positioning, and the cutting groove reduces cutting resistance and prevents debris from splashing. A buffer mechanism consisting of an insertion rod and a spring, combined with a sliding rod, enables the vertical lifting and lowering of the lower pressure roller, avoiding damage to the pipe during the clamping process. The cutting debris is guided through a slide rail into a waste storage box for centralized processing, improving operational convenience. The overall structure, through a multi-stage linkage design, balances cutting accuracy and safety, significantly improving processing efficiency.

The utility model discloses a kind of anti-winding cutterhead structures of water-cooled granulator, including cutterhead body, the surface of cutterhead body is provided with four fixed shells, the inside of fixed shell is provided with blade, fixed assembly is provided on the fixed shell, the fixed assembly is used to dismounting operation to the blade, anti-winding assembly is provided on the fixed shell, the anti-winding assembly is used for the blade anti-winding, between fixed shell and cutterhead body is connected by spacing connecting component. The drainage plate of the utility model blade both sides can actively dredge molten material flow direction, avoid material to accumulate and wind in the blade root, cutterhead surface, reduce cutting resistance from source, make blade always maintain efficient cutting state, drainage plate is rigidly connected with fixed shell by reinforcing block, avoid drainage plate deformation or displacement when cutterhead high-speed rotation, ensure that anti-winding effect is long-term stable.

The application discloses a positive and reverse meshing tooth combined type bionic stubble device, which comprises a moving frame, a transmission shaft, a movable stubble cutter, a positive rolling type passive stubble cutter and a reverse rolling type active stubble cutter; a first side cutting blade and a fourth side cutting blade adopt a left mandible structure of a leaf-cutting ant, a second side cutting blade and a third side cutting blade adopt a right mandible structure of a leaf-cutting ant, the third side cutting blade of the positive rolling type passive stubble cutter and the fourth side cutting blade of the reverse rolling type active stubble cutter are rotationally engaged to realize first shearing operation, the second side cutting blade and the fourth side cutting blade are engaged to realize second shearing operation, and the first side cutting blade and the third side cutting blade are engaged to realize third shearing operation; the application realizes dynamic bionics of the leaf-cutting ant mandible cutting leaf movement form, has high stubble cutting rate, small cutting resistance, low energy consumption, high operation efficiency, long service life and suitability for root-soil complex farmland operation environment.

The utility model relates to the technical field of film cutting, and discloses a cutting device for polypropylene film production, which comprises a working table, a cutting mechanism is arranged at the top of the working table, a transmission mechanism is arranged outside the working table, the cutting mechanism comprises a cutting frame, a first motor is fixedly connected outside the cutting frame, and a second motor is fixedly connected outside the first motor. An adjusting shell is installed at one end of the first motor, a cutting assembly is arranged in the adjusting shell, a preheating shell is fixedly connected to the outer portion of the adjusting shell, a first electric telescopic rod is fixedly connected to the interior of the preheating shell, a preheating plate is fixedly connected to one end of the first electric telescopic rod, and the cutting assembly comprises two air cylinders. According to the cutting device for polypropylene film production, different cutting knives are adjusted to correspond to different polypropylene films through the cutting mechanism, so that the operation of conveniently adjusting the cutting knives is completed, and the effect of improving the cutting efficiency is achieved.

The application discloses a single-knife digital three-side cutting paper cutting machine and belongs to the technical field of paper cutting machines. The paper cutting machine comprises a rack, a first conveying belt, a second conveying belt, a clamping assembly and a cutting assembly. The cutting assembly, the first conveying belt and the second conveying belt are arranged in the same direction and in a three-side half-enclosed layout, and a horizontal moving channel is formed in the middle. The clamping assembly is arranged in the horizontal moving channel and comprises a material taking sliding rail, a material taking screw rod, a sliding seat, a rotating mechanism and a material taking mechanism. The material taking mechanism can move along the horizontal moving channel and clamp materials. The rotating mechanism drives the material taking mechanism to rotate the materials by 90 degrees. The cutting assembly is used for sequentially completing three-edge cutting. The application solves the problems of poor positioning precision, low efficiency of manual rotation of the existing single-knife paper cutting machine, high cost and poor adaptability of traditional three-side cutting knives, realizes sequential cutting of books in a three-edge full-automatic, high-precision and high-quality mode, and has compact structure and is suitable for multi-variety batch production.

The utility model relates to the field of cutting equipment, in particular to furnace tube cutting equipment with a dust collecting function. The technical problems that when an existing furnace tube cutting device cuts a furnace tube, dust freely drifts away in a cutting space, too much dust is accumulated in the space, explosion is generated when the furnace tube cutting device encounters open fire and the like, serious consequences are caused, and meanwhile after the dust is inhaled by a human body, the health of the human body is affected are solved. According to the technical scheme, the furnace tube cutting equipment with the dust collecting function comprises a collecting assembly, a water spraying assembly, a moving assembly, a cutting assembly, a supporting assembly and a clamping assembly. According to the furnace tube cutting device, the moving structure is arranged, displacement work is facilitated, meanwhile, the fixed concave type water tank structure is arranged above the moving structure, water storage and filtering work is conducted, dust collection is facilitated, and meanwhile the fixed water spraying structure is arranged on one side of the water tank structure, and side face water spraying sedimentation work is conducted.

The utility model discloses a kind of blood vessel and tissue separation knives, relate to scalpel technical field, including: handle and blade, the side of the blade is provided with cutting edge, the both sides of the cutting edge are asymmetric structure;The utility model makes the both sides of cutting edge asymmetric structure, makes both sides stress uneven when cutting, cutting resistance is smaller, and it is not easy to tear tissue;Because two sides are asymmetric, wear will not concentrate in the cutting edge of cutting edge, prolongs the service life of tool;And adapt to the composite cutting scene of different hardness tissue.

The utility model discloses a solanum rostratum clearing device which comprises a vehicle seat, universal wheels are fixedly installed on the periphery of the bottom face of the vehicle seat respectively, a handrail is fixedly connected to the surface of the rear end of the upper end of the vehicle seat, and a connecting box, a water tank and a protection box are fixedly installed on the surface of the upper end of the vehicle seat in sequence. The lifting device is correspondingly arranged in the connecting box and is used for pushing solanum rostratum; the cleaning assembly is correspondingly arranged in the protection box and used for cutting and cleaning the roots of the solanum rostratum, the stems of the solanum rostratum are accurately pushed over through the lifting assembly, the cleaning assembly guarantees the stability and high efficiency of the cutting process, and compared with traditional manual cleaning or simple mechanical cleaning, the cleaning efficiency is improved by combining high-pressure water flow spraying. And the working efficiency can be greatly improved, and the labor intensity of operators is relieved.

The invention discloses a slitting device for margarine processing and a slitting method thereof, and relates to the technical field of cream processing.The slitting device comprises a conveying belt, a transmission part, an angle adjusting mechanism, a cutting part, a mounting frame, a first fixing rod, a third mounting box and a spraying mechanism, and the transmission part is fixedly connected to the front end of the top of the conveying belt; the transmission part is fixedly connected with the left end and the right end of the angle adjusting mechanism, the angle adjusting mechanism and the cutting part are magnetically attracted, the angle adjusting mechanism is arranged, a first toothed plate drives a gear to intermittently rotate, intermittent rotation of the cutting part is achieved, the requirements of margarine of different types are met, and heat generated during adjustment is reduced; the situation that due to the fact that the temperature is too high, the texture and taste of cream are changed, and the product quality is affected is prevented, adhesion between the cutting piece and the cream is reduced, cutting resistance is reduced, the cutting speed and production efficiency are improved, and the ceramic coating is comprehensively sprayed in the later period through rotation of the cutting piece.

The invention relates to the technical field of dispersing agents, in particular to a silicon powder dispersing agent based on natural phenolic compound modification and a preparation method of the silicon powder dispersing agent. According to the dispersing agent, the problems that a large amount of chippings and silicon powder are generated in the cutting process by diamond wire cutting liquid, dispersion is insufficient, the chippings and the silicon powder are prone to being attached to the surface of diamond wires or crystalline silicon, then the chippings and the silicon powder are bonded together, and the cutting precision is reduced are solved, and the prepared silicon powder dispersing agent and the composite dispersing composition are good in dispersing effect and high in dispersing speed; the stability is good.

The invention relates to the technical field of plant dye extraction devices, in particular to a textile plant dye raw material extraction device which comprises a horizontal tank body and further comprises a rotating assembly, a driving assembly and an abutting assembly, and the rotating assembly comprises a rotatable connecting shaft piece arranged in the horizontal tank body in the length direction; a plurality of stirring and cutting blades are arranged outside the connecting shaft piece, the stirring and cutting blades comprise movable blades and fixed blades, and the driving assembly is used for driving the movable blades to transversely move. In the initial stage of dipping, the movable blades and the fixed blades are located on the same circumferential surface, at the moment, the distance between the transverse stirring and cutting blades is large, and the cutting resistance can be reduced; the motor load is prevented from being increased, the interaction between the blades can be reduced, the abrasion of the blades is prevented from being aggravated, the service life of the blades can be prolonged, the positions of the movable blades can be adjusted, the space between the transverse stirring and cutting blades can be reduced, fragmentation operation can be carried out, and the impregnation effect is improved in the middle and later periods of impregnation.

The utility model discloses a self-adaptive adjustment vegetable cutter which solves the problems that a traditional device is uneven in cutting, cumbersome in cutter replacement and potential safety hazards exist. According to the technical scheme, an adjustable-speed motor drives an anti-skid conveying belt, a transparent vegetable cutting frame, a built-in sliding rail knife rest, a magnetic attraction type spaced tooth blade knife body and a cam connecting rod driving mechanism are arranged in the middle, and a double-distance sensor and an induction column are staggered to detect the knife position; a hydraulic buffering elastic pressing roller and a guide wheel are arranged on the feeding side, and the pressure and the transverse position are adjusted by a cylinder; the controller synchronously regulates and controls the cutting frequency, the stroke and the conveying speed according to data of the sensor, and self-adaptive cutting of food materials is achieved; the safety module is in linkage with the emergency stop switch through the infrared sensor, and emergency stop is conducted within 0.1 second. According to the scheme, cutting uniformity is improved, rapid cutter changing is supported, food material damage is reduced, operation safety is guaranteed, and the device is suitable for food industrial processing.

The grinding wheel for the automobile steel plate roller is provided with a grinding wheel body, an inner core grinding wheel and an outer layer grinding wheel are arranged on the grinding wheel body, the outer layer grinding wheel is arranged outside the inner core grinding wheel, the outer layer grinding wheel is a wear-resistant alloy powder layer grinding wheel, and an assembly part is arranged on the inner core grinding wheel. The assembling part is an assembling hollow part, the abrasion resistance is remarkably improved, the service life of the grinding wheel is prolonged, the frequent replacement cost is reduced, the inner core grinding wheel and the outer layer grinding wheel are of a layered structure, the supporting performance of the interior and the functionality of the outer layer are both considered, maintenance and upgrading are convenient, and the assembling valve body is embedded into the grinding wheel body through an external groove. Through cooperation of a side boss threaded hole and an assembly screw, multi-dimensional tight fixing is achieved, the stability of the grinding wheel in high-speed rotation is ensured, wear-resisting gaskets are arranged in a top groove and a bottom groove, and friction loss between an assembly valve body and an assembly transmission shaft is reduced.

The flattening mechanism comprises a base, a discharging roller, a heating assembly and a feeding roller, supporting rods are arranged on the right side of the upper end face of the base, the discharging roller is arranged at the upper end between the two sets of supporting rods, a conveying belt is arranged on the outer surfaces of a plurality of sets of transmission rollers, a first motor is arranged on the outer side of one set of fixing plates, and a second motor is arranged on the outer side of the other set of fixing plates. The heating assemblies are arranged on the two sides of the upper end face of the conveying belt, the feeding rollers are arranged on the opposite faces of the upper ends of the bearing rods, and a second motor is arranged on the outer side of one bearing rod. According to the flattening mechanism for the splitting machine, the heating assembly is arranged, so that the flattening mechanism for the splitting machine has a heating effect, fabric can be heated, the fabric heated by the heating assembly is softer and is more easily cut by a cutter of the splitting machine, the cutting resistance is reduced, and the cutting precision and accuracy are improved; it is ensured that the size and the shape of the cut fabric meet the requirements, and the fabric can be effectively prevented from curling through heating and then flattening.

The utility model relates to a kind of cutting circular saw blade special for high-pressure composite pipe, including saw blade body, the circumferential side of saw blade body is evenly distributed with several groups of tooth profile, the tooth profile is designed as periodic combination, it is arranged in order as flat tooth-left helical tooth-right helical tooth-left helical tooth-right helical tooth, every 5 teeth a group, the whole circular saw blade is made of 16 groups of teeth total tooth number 80 teeth, the circumferential side of saw blade body is evenly provided with 80 recesses for the insertion of cutter head, the cutter head is welded in the recess by three sides. The main deflection angle ε of left helical tooth and right helical tooth is designed as 5 °, the radial difference Hd of flat tooth, left helical tooth and right helical tooth is designed as 0.2mm. It is mainly used for cutting of high-pressure steel wire winding high-pressure composite pipe (such as mine hydraulic support, oilfield development, engineering construction and other high-pressure hydraulic system in conveying pipeline), significantly reduce cutting resistance, eliminate cutter head fracture, shedding, jam and cracking risk, improve service life and safety.

This invention relates to the field of centrifugal separation technology, specifically to a cold precipitate centrifugal separation device and its application in the production of instant tea powder. The device includes: a base plate and a centrifugal tank fixed to the base plate, with a cover plate hinged to the top of the centrifugal tank; a filter tank rotatably installed inside the centrifugal tank, the outer circumferential wall of the filter tank having multiple circumferentially equidistant filter holes; a centrifugal assembly connected to the filter tank on the base plate; a rotary feeding mechanism disposed on the cover plate for guiding the cold precipitate into the filter tank for centrifugal separation; and a scraping assembly disposed on the cover plate, with a scraper connected to the scraper. The scraping assembly can control the movement of the scraper to break the continuous adhesive surface of the tea polysaccharide-containing filter cake and guide the material away from the filter tank, preventing the material from being re-adsorbed onto the screen due to residual centrifugal force or airflow disturbance.

The utility model discloses a cutting device for meat product processing, which comprises a base and is characterized by further comprising a cutting mechanism, the cutting mechanism comprises a cutting frame, a driving shaft, a cutter holder, a dividing cutter, a rotating shaft, a cam and a lower pressing disc, the adjustable cutting frame is arranged at the left end of the base, the top wall of the cutting frame is rotationally connected with the driving shaft, the cutter holder is arranged at the lower end of the driving shaft, the dividing cutter is arranged on the outer arc surface of the cutter holder, and the lower pressing disc is arranged at the upper end of the outer arc surface of the cutter holder; the inner wall of the left side of the cutting frame is rotationally connected with a cam through a rotating shaft, the cam and the lower pressing disc are installed in a matched mode, a control switch set is arranged on the front side face of the base, and the input end of the control switch set is electrically connected with an external power source. Friction force between meat products and the cutter can be effectively reduced, cutting resistance is reduced, raw beef is prevented from being deformed and torn due to large friction force, and therefore product quality is improved.

The invention discloses silicon carbide crystal bar slicing equipment, and relates to the technical field of silicon carbide crystal bar slicing. Comprising a base, a crystal bar fixing rack, a winding rack and a cutting rack, a rotary three-jaw chuck is installed on the crystal bar fixing rack, a winding roller and a take-up roller are rotatably installed on the winding rack, and a cutting wire breaking clamping device, a tensioning wheel device, a guide wheel device and a slice cooling device are arranged on the cutting rack. The diamond wire can be clamped at the moment when the diamond wire is broken, an operator can conveniently track the wire and reinstall the wire, the shutdown maintenance time is shortened, in addition, the position of a silicon carbide crystal bar can be rotationally adjusted during slicing, the diamond wire cutting contact area and cutting resistance are reduced, and diamond wire abrasion is reduced; the slicing device and the cooling device are in cooperative linkage, accurate liquid spraying is achieved, in the slicing process, the tensioning force of the diamond wire can be monitored and adjusted in real time, and the wire breaking risk is reduced.

The utility model discloses a cutting device used in a silicone rubber production process, which belongs to the technical field of silicone rubber production and comprises a transmission frame, a cutting fixing frame is fixedly connected onto the transmission frame, and a moving module is fixedly connected onto one side, close to the transmission frame, of the cutting fixing frame. A sliding seat of the moving module is connected with a positioning plate through a bolt, a telescopic cylinder is fixedly connected to the lower portion of the positioning plate, and a cutting structure is installed at the end of a telescopic rod of the telescopic cylinder. Meanwhile, a jacking roller in the jacking structure moves upwards to jack the silicone rubber, the silicone rubber is in a tensioned state through cooperation of the jacking roller and the jacking roller, the rebound phenomenon of the silicone rubber caused by self elasticity can be effectively reduced through the tensioned state, and it is guaranteed that the silicone rubber can be stably and accurately cut in a sliding mode in the transverse moving process of the cutting knife.

An automated grooving device for a tool pliers includes linearly fixedly arranged grooving dies. The grooving dies include a fixed-tooth die, a single-variable die, and a double-variable die. The single-variable die is located below the fixed-tooth die, and the double-variable die is located below the single-variable die. The cross-sectional shape of the fixed-tooth die remains constant. The cross-sectional height of the single-variable die is constant, but its cross-sectional width gradually narrows along its length. Both the height and width of the double-variable die gradually narrow along its length. Oil nozzles are spaced apart in the middle of the grooving dies. In this invention, the cross-section of the grooving dies is designed with a gradual change. By gradually increasing the feed rate during grooving and cutting the jaws, cutting resistance and cutting chips are reduced. The oil nozzles apply lubricating oil to the jaw teeth during the grooving process, improving the smoothness of grooving and reducing problems such as tooth surface roughness and dulling.

The invention relates to the technical field of edible mushroom production equipment, and discloses an automatic bag cultivation pilose antler mushroom cutting machine which comprises a rack, a main conveying line is installed at an inlet of the front face of the rack, a belt conveying unit installed in the rack is arranged above the main conveying line, and the belt conveying unit extends to the outer side of the rack from the side face of the rack; a band saw cutting mechanism is arranged on the side, located in the rack, of the belt conveying unit and located over the main conveying line. By arranging the main conveying line and the belt output unit and arranging the band saw cutting mechanism at the space intersection of the main conveying line and the belt output unit, automatic cutting of the bag-cultivated velvet antler mushrooms can be achieved, cutting-off and transferring of the bag-cultivated velvet antler mushrooms can also be achieved, the harvesting efficiency of the bag-cultivated velvet antler mushrooms is greatly improved, the labor intensity of workers is reduced, and the labor intensity of workers is reduced. Meanwhile, the contact between a human body and a cutting tool can be reduced, and the safety of production operation is improved.

The utility model relates to the technical field of diamond saw blades, in particular to a multi-notch diamond saw blade. According to the saw blade, the open grooves formed between the adjacent diamond tool bits extend towards the center of the saw blade base body, chippings generated in the cutting process can be effectively contained, chipping discharging is smoother, cutting resistance caused by chipping accumulation is reduced, and therefore the cutting efficiency is improved. The lengths of the adjacent open grooves are different, stress generated in the cutting process is effectively dispersed, the stress is prevented from being concentrated in a specific area, and therefore the influence on the strength of the saw blade base body is reduced, the structural stability of the saw blade base body is enhanced, and the service life of the saw blade is prolonged.

The application discloses a kind of adhesive tape cutting processes, comprising the following steps: S1: the adhesive tape to be cut in roll is installed on unwinding roller;S2: by unwinding roller make the base material layer of adhesive tape upward, release paper layer downward, and be sent to pre-cutting station along predetermined path;S3: when unwinding adhesive tape reaches pre-cutting station, first cutting device is not cut to the adhesive tape positioned at this time;S5: under the action of unwinding roller, the adhesive tape segment that has completed pre-cutting is sent to stretch separation station.Compared with prior art, the application uses first cutting device to cut incompletely by pre-cutting, then stretch separation uses stretch separation mechanism to break adhesive tape by tension, at the same time, due to release paper layer as support, adhesive layer will not be deformed or adhere to tool during cutting, the whole process avoids traditional one-time cutting-through process, cutting resistance is smaller, reduces plastic deformation and fiber pull-out, and also avoids the generation of burr.

The utility model discloses a hard alloy circular saw blade for a trephine, which relates to the technical field of cutting and comprises a trephine body, a plurality of groups of saw teeth arranged circumferentially at equal intervals are arranged on the trephine body, each saw tooth consists of a left helical tooth, a right helical tooth and a sharp tooth, the right helical tooth is positioned between the left helical tooth and the sharp tooth, and the cutting edge angle epsilon of the left helical tooth and the right helical tooth is 5 degrees. The tool cutting edge angle epsilon of the sharp teeth is 15 degrees, the sharp teeth are in left-right inclined symmetrical design, centripetal angles with Tp being 1 degree are designed on the side faces of the left inclined teeth, the right inclined teeth and the sharp teeth, and circumferential angles with Tr being 3 degrees are designed on the side faces of the left inclined teeth, the side faces of the right inclined teeth and the side faces of the sharp teeth. Due to the design of the tool cutting edge angle, the cutting amount can be uniformly distributed during cutting, the cutting efficiency is improved, meanwhile, tipping during cutting is avoided to the greatest extent, and the service life of a product is prolonged; due to the design of the centripetal angle and the circumferential angle, the friction of the tooth side face to the workpiece is reduced, the cutting resistance is remarkably reduced, the temperature of the workpiece is reduced, and it is guaranteed that the cutting face of the workpiece such as wood, aluminum and plastic is smooth and free of focal marks.

The utility model relates to the field of pipeline construction, in particular to a portable chamfering mechanism tool bit for pipeline auxiliary installation, which comprises a protective sliding barrel and a chamfering tool bit, a chamfering tool bit main body is positioned in the protective sliding barrel, a rectangular long hole is arranged on the side wall of the protective sliding barrel, and the chamfering tool bit main body is positioned in the protective sliding barrel. The two ends of the chamfering tool bit are hinged to and slidably arranged at the rectangular long hole of the protective sliding barrel, the chamfering tool bit is a combined tool bit, through the combined tool bit structure, the angle of the tool bit can be adjusted, the adjusting range is large, the chamfering requirements of various angles can be met, the construction efficiency is improved, and the construction quality is guaranteed.