63 results about "Scriber" patented technology

The application relates to the technical field of wafer dicing, and provides an adsorption work disc for a dicing machine, a wafer adsorption control method and the dicing machine. The adsorption work disc comprises a disc body and a sealing support. The disc body comprises a base and an adsorption part. The adsorption part is located above the base and is connected with the base to form a gas guide channel. The adsorption part comprises a plurality of adsorption units. The adsorption units are communicated with the gas guide channel. An installation groove is arranged at the edge area of the adsorption part. The installation groove is arranged at the edge of the adsorption work disc, and the sealing support is arranged in the groove. The sealing support supports the edge of the wafer. The sealing support has certain flexibility. When the wafer is adsorbed, the edge of the wafer will not be warped due to the reverse abutting force. Meanwhile, a relatively closed space is formed between the wafer and the adsorption part of the adsorption work disc and the sealing support, so that the adsorption efficiency and adsorption effect of the adsorption units on the middle area of the wafer are improved.

The cutter damage detection mechanism for the scribing machine comprises a machine body, a scribing cutter is installed in the machine body through a scribing base, a detection base is fixed to the front end of the scribing base, and the detection base is located at the upper left corner of the scribing cutter; the device further comprises a hydraulic rod, the hydraulic rod is fixed to the top of the inner cavity of the detection base, the output end of the bottom of the hydraulic rod is connected with a mounting base, the two sides of the mounting base are connected with L-shaped rods through damping assemblies, and a laser transmitter and a laser receiver are oppositely fixed to the inner sides of the vertical areas of the two L-shaped rods correspondingly. The bottom of the mounting base is connected with a stop lever through a second elastic telescopic rod, and a movable assembly is arranged between the interior of the mounting base and the stop lever and used for pushing the stop lever to move up and down. According to the cutter damage detection mechanism for the scribing machine, a cutter with heat dissipation holes is stably detected, and meanwhile long-acting detection can be kept.

The present invention relates to a MEMS inertial device structure and manufacturing method; the structure comprises an upper cover plate, a device layer, and a substrate bonded sequentially from top to bottom, the device layer having a sensitive etching area and a non-sensitive area, the sensitive etching area being etched to form a sensitive structure of the inertial device, the non-sensitive area being provided with a scribe line, the scribe line being etched to form a first cut-through area, the substrate being provided with a plurality of test PADs, the first cut-through area being located directly above the plurality of test PADs. The present invention pre-opens the first cut-through area, and after the device layer is bonded to the substrate, the device layer above the substrate does not need to be scratched, and the test PADs on the substrate can be exposed, thereby avoiding the risk of the scriber contacting the substrate metal wires and improving the manufacturing yield of the MEMS inertial device.

The utility model discloses an accurate blanking box of a scribing machine. The accurate blanking box comprises a blanking box body and a blanking assembly, the discharging box body comprises a base plate fixedly installed at the bottom of the discharging box body. The discharging assembly comprises an electric sliding rail fixedly installed on one side of the chassis, a sliding block movably installed on the electric sliding rail, and a first motor fixedly installed at the outer end of the sliding block. According to the accurate blanking box of the scribing machine, when a blanking workpiece in the scribing machine is conveyed to the blanking box body, the blanking workpiece is firstly conveyed to the upper end of the supporting disc at the top of the blanking box body, and after the blanking workpiece is clamped and positioned at the upper end of the supporting disc through the right positioning ring and the left positioning ring which rotate in an opening and closing mode on the two sides, the blanking workpiece is discharged. According to the blanking box, the workpiece is arranged in the blanking box body, then the supporting disc driven by the electric sliding rail moves downwards for blanking so as to guarantee the accuracy in the blanking of the workpiece, meanwhile, the supporting disc driven by the electric sliding rail moves downwards to drive the blanking of the workpiece, collision between the workpiece and other workpieces in the blanking box body in the blanking process can also be avoided, protection in the blanking process of the workpiece is achieved, and the problem that the workpiece is collided and damaged is avoided.

1. The name of the design product: dough magnetic line marking knife (K320). 2. The use of the design product: for dough magnetic line marking knife. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

A multi-use hand tool assembly includes a body having a bottom portion, at least one flange extending from the bottom portion, a central portion, and an end with a plurality of holes. Each hole of the plurality of holes includes a narrowing bore extending to and ending at the central portion of the body and configured to secure a scribe and / or mark material at a marking distance. A snap-on spacer is removably coupled to the bottom portion to change at least one marking distance of at least one hole of the plurality of holes.

The utility model relates to the technical field of building scribing equipment, and particularly discloses an earth and rockfill dam surface scriber which comprises an alignment plate, fixing pieces are installed at the two ends of the alignment plate, a connecting plate is hinged to the alignment plate, and a connecting hole used for being connected with an ink fountain line is formed in the connecting plate. The lower end of the vertical rod is connected to the alignment plate, and a top plate is mounted at the top of the vertical rod; one end of the positioning rod is connected to the upper end of the vertical rod through a rotating ring, the other end of the positioning rod is provided with a through hole, a sliding rod is slidably connected into the through hole, the lower end of the sliding rod is connected with a fixing rod, and the fixing rod is hinged to a pair of clamping blocks through a rotating rod and used for clamping an ink fountain line. The device further comprises an inserting rod, the inserting rod penetrates through the positioning rod, the upper end of the inserting rod is connected with the top plate, a butt joint groove is formed in the connecting plate, and the lower end of the inserting rod is connected with the butt joint groove in a clamped mode. A sliding sleeve is further included and slidably connected to the outer portion of the sliding rod, pull ropes are arranged on the left side and the right side of the sliding sleeve respectively, and the pull ropes on the left side and the right side are connected to the left ends and the right ends of the clamping blocks respectively, so that the clamping blocks are separated when the sliding sleeve moves upwards. And errors generated when lines are snapped on the earth and rockfill dam face are reduced.

The utility model relates to a pipe scriber, and relates to the technical field of pipe machining equipment, the pipe scriber comprises a supporting block and a pressing rod, the supporting block is provided with a limiting groove, and the limiting groove is used for limiting a pipe; a communicating groove is formed in the supporting block; the pressing rod is arranged in the communicating groove, one end of the pressing rod is hinged to the groove bottom of the communicating groove, and the pressing rod is used for limiting the pipe in the limiting groove; the end, away from the groove bottom of the communicating groove, of the pressing rod is fixedly connected with a transverse rod. The two ends of the transverse rod are each provided with a scribing wheel. And the scribing wheel is fixedly sleeved with a sliding knife. The pipe scriber can effectively limit pipes and accurately scribe lines on the surfaces of the pipes.

The utility model relates to cold-rolled stainless steel production technical field, specifically disclose a kind of cold-rolled stainless steel strip surface defect on-line detection marking system, including X-axis linear motor, Y-axis linear motor and X-axis double-cavity air cylinder, first scribe, pass through Z-axis screw rod driving assembly installation in the rotor of Y-axis linear motor, first scribe is vertically arranged in the nut pair of Z-axis transmission screw rod assembly;Two second scribes are respectively arranged in the two ends of the same side of Y-axis linear motor and Z-axis screw rod driving assembly, and second scribe is connected with rotating motor;Z-axis screw rod driving assembly and rotating motor synchronous drive first scribe and second scribe work, and first scribe contacts the surface of target defect of cold-rolled stainless steel, and second scribe contacts the side of cold-rolled stainless steel.The utility model can mark surface and side in the surface defect of cold-rolled stainless steel production process, facilitate the positioning of the fast defect position in subsequent stainless steel processing.

The utility model discloses a scribing machine's half-piece cutting mechanism, including scribing support, manipulator and half-piece output module, be equipped with jacking motor and jacking frame on scribing support, jacking motor moves back and forth along scribing support, the drive end of jacking motor is connected with cam, the cam is located in the middle of jacking frame, and the cam is located in the middle of jacking frame. A scribing laser head and a scribing detection camera are arranged in the middle of the scribing support, the half-wafer output module comprises a half-wafer transverse moving module, a half-wafer vertical moving module and a half-wafer suction rod, the half-wafer vertical moving module is installed at the driving end of the half-wafer transverse moving module, the half-wafer suction rod is installed at the driving end of the half-wafer vertical moving module, and a half-wafer suction nozzle is fixed to the half-wafer suction rod. According to the half-wafer cutting mechanism of the scribing machine, the whole silicon wafer is placed in the scribing area through the mechanical arm, laser cutting is carried out on the whole silicon wafer from the middle through laser, and preparation is made for follow-up series welding of the half silicon wafer.

The invention discloses an auxiliary drawing device for interior design, and belongs to the related technical field of interior design, the auxiliary drawing device comprises a storage box, a telescopic part and a lifting top cover, the lifting top cover is movably mounted above the storage box, and the telescopic part is movably mounted between the storage box and the lifting top cover; a side rotating back plate is movably installed at the upper end of the lifting top cover, a drawing board is installed on the outer surface of one side of the side rotating back plate in a spliced mode, a scriber is movably installed on the inner side of the drawing board, the whole scriber is of a cross-shaped structure, and the scriber comprises a movable ruler and a sliding ruler plate; the movable ruler is movably mounted on the outer surface of the sliding ruler plate; the line drawing auxiliary device has a line drawing auxiliary function, can be randomly adjusted along with the line position, enables line body drawing to be straight, improves line drawing attractiveness and accuracy of a plane house type drawing, can be carried about, can be randomly adjusted according to use requirements, and improves flexibility during use.

The utility model provides a wheel eyebrow scriber, and belongs to the field of scribers. The utility model relates to a wheel eyebrow scriber, in particular to a wheel eyebrow scriber, which solves the problems that a traditional wheel eyebrow scriber fixes the position of a middle barrel through a bolt, the bolt needs to extrude a screw main body to lock the middle barrel, and the screw may be damaged after being used for a long time, and comprises a screw, the middle barrel capable of moving up and down on the screw and a pen container arranged above the screw. An adjusting knob is arranged below the middle cylinder, a sliding groove is formed in the adjusting knob, a sliding block capable of sliding up and down is arranged in the sliding groove, and an inner cylinder surrounding the outer ring of the screw rod is arranged at the upper end of the sliding block; the upper end and the lower end of the inner cylinder are each provided with a limiting disc used for being matched with the middle cylinder in a limiting mode, a groove channel used for allowing the limiting discs to rotate is formed in the middle cylinder, and the upper end of the screw is provided with a locking nut used for locking the inner cylinder together with the adjusting knob.

This invention provides a digital legacy recording device that can be configured at a low cost, addresses the complexities of inheriting digital assets that may arise unexpectedly, and enables long-term recording and maintenance of digital assets using physical long-term storage media. [Solution] The digital legacy recording device using a physical long-term storage medium records information by hand on the surfaces of opposing metal plates 1 and 2 with a scriber pen, and provides physical protection in the card-sized storage space of the frame 3 that holds the information in place. It responds immediately to the need for inheritance risk management and provides tamper detection and difficulty of destructive access by sealing with an adhesive that contains fragments that are difficult to reproduce in a unique way, using inexpensive means, and maintains security through the freedom of configuration and the originality of the sealing.

The utility model discloses a back cover type scriber which comprises a hollow scriber body, a wire coil arranged in the scriber body, a powder adding cover assembly and a back cover, wherein the powder adding cover assembly and the back cover are arranged at the front end of the scriber body. The hollow scriber body is composed of an upper cover assembly and a lower cover. The upper cover assembly comprises a mechanism used for driving a wire coil to rotate. A hollow area is arranged in the middle of the lower cover, and the back cover covers the hollow area; according to the scriber provided by the utility model, the split back cover is additionally arranged in the middle of the lower cover, so that lines can be quickly and conveniently arranged and replaced if the situations of line jamming, knotting and abrasion occur in the use process, and the scriber is lighter under the condition that the overall strength is not influenced.

The application discloses a dynamic compensation method for full closed loop control of a grating ruler-based driver of a scriber, and comprises the following steps: realizing closed loop control positioning of the scriber through motor self-rotation encoder signals and grating ruler signals; long-term monitoring of position difference value data, comparison and analysis of data after grating ruler and rotation encoder failure with factory laser interferometer data to obtain changes of the scriber in service life; and dynamic compensation of precision and rigidity of the scriber. The application takes rotation encoders and grating rulers as main measuring devices, has higher data precision, realizes closed loop control, and improves the precision and reliability of the scriber; the dynamic compensation of precision and rigidity of the scriber can effectively prolong the service life of the scriber, and when the scriber approaches the designed service time and the precision deteriorates, the required precision can be effectively achieved.

The utility model discloses a main shaft sealing structure and a scribing machine. The main shaft sealing structure comprises a fixed assembly, a sliding assembly, an elastic sealing ring and a shape supplementing plate. The fixing assembly is provided with a sliding groove. The sliding assembly is arranged in the sliding groove in a sliding mode and provided with a mounting hole. The elastic sealing ring is arranged in the mounting hole, and the elastic sealing ring is used for being arranged on the periphery of the main shaft in a sleeving mode and is tightly attached to the arc-shaped part of the main shaft; the shape supplementing plate is arranged on the inner ring of the elastic sealing ring and provided with a first attaching face attached to the inner wall of the elastic sealing ring and a second attaching face used for being attached to the plane part of the main shaft. According to the utility model, the shape of the main shaft is compensated through the shape compensating plate, so that the waterproof sealing of the main shaft can be realized through the elastic sealing ring, and the processing cost of parts is greatly reduced; besides, under the elastic force action of the elastic sealing ring, even if the shape supplementing plate is abraded, the shape supplementing plate can be tightly attached to the main shaft, the sealing effect is guaranteed, and the abrasion service life is greatly prolonged.

The invention relates to the technical field of calibration devices, and discloses a laser height measurement calibration device which comprises a dicing saw main shaft, a cutter head is installed at one end of the dicing saw main shaft, a blade is installed in the cutter head, a working disc is arranged below the blade, and a water spraying frame is fixedly connected to the side, close to the blade, of the outer wall of the dicing saw main shaft. And a laser distance measuring sensor is arranged on the side close to the water spraying frame, a buffer cushion is attached to one side of the outer wall of the laser distance measuring sensor, a mounting frame is fixedly connected to one side of the outer wall of the buffer cushion, and a quick mounting assembly is mounted in the mounting frame. Through the plugging cooperation of the housing and the plugging block, the sleeve is used for pushing the sliding block to compress the first spring, the rack plate is driven to be engaged with the gear, the first clamping block on the rotating shaft is enabled to rapidly clamp and fix the housing, and the rapid assembly of the laser distance measuring sensor is realized. The structure can be installed without tools, the problem that a traditional calibration device is tedious in installation is solved, and use convenience is remarkably improved.

The utility model provides a scriber which comprises a base, a telescopic plate and a clamping plate. The base is L-shaped, a base strip hole is formed in the back side of the base, the base strip hole is vertically formed, a telescopic plate and a clamping plate are slidably connected to the base strip hole so that the telescopic plate and the clamping plate can move up and down along the base strip hole, and the base, the telescopic plate and the clamping plate are connected to form an E-shaped structure; a vertical clamping seat is slidably connected to the front side of the clamping plate and moves front and back along the clamping plate, and a pen fixing plate is arranged at the front end of the vertical clamping seat or the front end of the telescopic plate; the pen fixing plate is provided with a pen sleeve used for inserting a pen, and a clamping assembly used for clamping the pen is arranged in the pen sleeve. According to the scriber, scribing can be conducted with one hand through the scriber, and therefore the problem that scribing is difficult to conduct through cooperation of the two hands in a narrow working space is solved.

The utility model relates to a pipeline intersecting line scriber which comprises a main shaft pipe, one end of the main shaft pipe is detachably connected with an ejector pin, the end, close to the ejector pin, of the main shaft pipe is connected with a bottom plate, a connecting part and an angle scale are fixed to the bottom plate, and the connecting part, the main shaft pipe and the angle scale are in threaded connection through the same screw. An angle scale is arranged on one side, back to the connecting part, of the angle scale; an angle positioning block is fixed on a pipeline, close to the angle scale, of the main shaft pipe; a pipeline of the main shaft pipe is also in sliding connection with a sliding block; a swing arm is further fixed to the sliding block, and a length scale is arranged on the surface of the swing arm. A diameter positioning column is further connected to the swing arm in a sliding mode. The side, close to the bottom plate, of the diameter positioning column is detachably connected with a line drawing pipe and a line drawing pen. By utilizing the pipeline intersecting line scriber designed by the utility model, the problems that the traditional intersecting line scribing process is complicated, the production cycle is prolonged, a large amount of time and resources are wasted, errors are easy to occur, and the production efficiency is low can be solved.

This invention discloses a constant-speed, constant-load coating scratch resistance tester and method, belonging to the technical field of ink coating scratch resistance testing. It includes a base, a cantilever frame, a cantilever rod, a scriber, and a sliding stage. The cantilever frame is fixedly connected to the left side of the top surface of the base, and the cantilever rod is hinged to the cantilever frame. The scriber is vertically fixed to the bottom right side of the cantilever rod. The sliding stage is connected to the right side of the base via a horizontal sliding drive mechanism and is located above the base. A fixing mechanism for fixing the sample is provided on the upper surface of the sliding stage, and a loading mechanism is provided on the upper side of the cantilever rod. This invention uses a scriber against the coating, and a set weight is applied to the scriber via the loading mechanism to fix the sample on the upper surface of the sliding stage. By controlling the movement of the sliding stage, the scratching operation on the coating on the sample is achieved. Using a set weight and constant speed ensures consistent force and more accurate scratch resistance assessment.

The utility model relates to the technical field of engraving, and discloses an engraving scriber convenient for marking, which comprises a concave frame, the right side of the concave frame is in threaded connection with a screw rod, the left end of the screw rod penetrates through the concave frame and is rotatably connected with a linear module sliding table through a bearing, and the moving end of the linear module sliding table is fixedly connected with a positioning frame. By arranging the convex disc, the electric air cylinder, the driving frame, the rotating motor and the pressing disc, carving materials can be conveniently pressed, held and limited, meanwhile, the carving materials can be conveniently rotated, and by arranging the concave frame, the screw rod, the linear module sliding table, the positioning frame, the sliding plate, the positioning pipe, the marking pen, the spring and the guide assembly, the carving materials can be conveniently positioned. The marking height of the marking pen can be conveniently and vertically adjusted, meanwhile, the marking pen is buffered when being subjected to concave-convex extrusion of materials, the marking pen is prevented from being damaged, and by arranging the structure, marking use can be facilitated, so that the use requirements of customers can be met, and the carving precision is prevented from being influenced.

The utility model relates to the technical field of pipeline machining auxiliary tools, and discloses a pipeline groove edge distance rapid positioning scriber which comprises a supporting plate, groove rotating rollers are rotationally connected to the left side and the right side of the front end of the bottom of the supporting plate, and mounting bases are fixedly connected to the left side and the right side of the bottom of the supporting plate. Rollers are rotatably connected to the front ends and the rear ends of the two mounting bases correspondingly, a reserved opening is formed in the top of the supporting plate, a supporting rod is fixedly connected to the top of the supporting plate, limiting grooves are formed in the left side and the right side of the outer wall of the supporting rod correspondingly, and the inner walls of the two limiting grooves are slidably connected with the same adjusting base. According to the pipeline marking device, the idler wheel is matched with the groove rotating roller, so that the device can smoothly do circular motion on the surface of a pipeline, the adjusting seat moves along the limiting groove and is fixed through the first fastening screw, the height of the marking pen is fixed through the second fastening screw, the pipeline marking device flexibly adapts to different construction scenes, marking is accurate, and construction efficiency and quality are improved.

The utility model relates to the technical field of silicon wafer scriber, concretely is a kind of waste collection assembly for full-automatic silicon wafer scriber, including scriber body, the top of scriber body is fixedly installed with control screen, scriber body's side is equipped with control button, the top of scriber is fixedly equipped with laser equipment, the top of scriber body is fixedly installed with working plate, and scriber body's side is equipped with cabinet door;Beneficial effects are that: using lifting motor structure, the thread design of cleaning broom side surface can sweep the waste debris connected with silicon wafer, cleaning comb is pasted to cleaning broom, can clean the silicon wafer waste pasted on the side surface of cleaning broom, compact structure, clean quickly, improve work efficiency, additionally, still be equipped with rotating motor and move plate activity driven by screw rod, automatically enter collection box, carry out cleaning work, reduce manual cleaning operation, improve equipment automation, convenient operation.

The utility model discloses a building arc-shaped beam sideline scriber, belongs to the field of building engineering surveying and setting-out, and solves the problems that the surveying and setting-out of complex wall beam template sidelines, control lines and the like are slow in speed and prone to errors. A guide wheel frame is arranged at the front end of the counterweight base, a guide wheel is arranged on the guide wheel frame, through grooves are correspondingly formed in the two sides of the guide wheel frame, a scale plate penetrates through the through grooves in a sliding mode, and a mounting base is arranged on one side of the guide wheel frame; a locking device for fixing the scale plate is arranged on the mounting seat, an ink box bracket is arranged at one end of the scale plate, a scribing wheel is mounted at the bottom of the ink box bracket, an ink box is arranged on the ink box bracket, an ink absorption material is placed in the ink box, an opening is formed in the bottom of the ink box, and the scribing wheel penetrates through the opening to be in contact with the ink absorption material. Through a manual pushing mode, the guide wheel is kept to coincide with the existing axis, so that straight lines and arc lines parallel to the axis can be easily drawn, and simplicity and high efficiency are achieved.

The utility model discloses a scriber suitable for different landforms, which is characterized in that a roller component is arranged at the bottom of a scribing vehicle body, a storage barrel is arranged on the scribing vehicle body, a mounting plate is arranged at the front end of the scribing vehicle body, and a scribing mechanism comprises a scribing frame body and a rotary scribing body arranged in the scribing frame body; the rotary scribing body is connected with the storage barrel through a connecting piece, a vertical sliding groove is formed in the mounting plate, a sliding piece is arranged on the scribing frame and slidably connected into the vertical sliding groove, a driving unit is further arranged on the mounting plate, and the scribing frame is driven by the driving unit to move up and down along the mounting plate. According to the scriber suitable for different landforms, the scribing frame body can move up and down along the mounting plate under the driving of the driving unit, so that the scribing frame body and the rotary scribing body can be adjusted to proper positions, and the scribing operation can be carried out on different landforms and undulating sand.

The application discloses a kind of gradual multi-section cutting method, system and equipment of scriber, it is related to cutting management relevant field, this method includes: identifying cutting task sheet, determine cutting structure diagram;Obtain target material characteristics, trigger first decision maker, with controllable stress distribution executes one section cutting decision based on cutting structure diagram, determine first cutting scheme;With minimum idle stroke ratio as constraint, introduce cutting auxiliary mode, trigger second decision maker to execute gradual segmentation decision and cutting drive decision based on cutting structure diagram, determine second cutting scheme;Timing integration first cutting scheme and second cutting scheme, respond to the cutting management under the multi-axis driving of the central control system of scriber.Solve the technical problem that material damage, cutting efficiency is low due to uneven stress distribution in the cutting process of existing scriber, reaches through gradual multi-section cutting and realizes controllable stress distribution optimization, improves the technical effect of cutting precision and efficiency.

A groove is transversely formed in the lower end of a mounting plate, a sliding rod is transversely and fixedly arranged in the groove, four sliding blocks are arranged on the surface of the sliding rod in a sliding mode, round rods are fixedly arranged at the rear ends of the four sliding blocks, and round plates are fixedly arranged at the outer ends of the four round rods; the rotating disc is rotated to conveniently drive the threaded rod to rotate, the threaded rod rotates to conveniently drive the threaded block to move up and down, the threaded block moves up and down to conveniently drive the moving plate to move up and down, and the moving plate moves up and down to conveniently drive the four round rods and the four circular rings to gather and scatter in the four inclined grooves. The four round rods are gathered and scattered to conveniently drive the four sliding blocks to move close to or away from each other, so that the distance between the four pieces of chalk at the front ends of the four sliding blocks can be conveniently adjusted, lines with different distances can be conveniently drawn, and the distance between the four pieces of chalk can be conveniently adjusted according to the size of written English.

The invention relates to the technical field of scribing machines, and discloses an adjustable water spraying cover device suitable for a scribing machine and the scribing machine. The adjustable water spraying cover device comprises a mounting frame, a workbench is arranged at the bottom of an inner cavity of the mounting frame, a storage box body is arranged above the workbench, a placement table is arranged in an inner cavity of the storage box body, and a water inlet is formed in the placement table; a water outlet is formed in the water inlet and penetrates through the workbench, a water spraying cover body is further arranged above the workbench, and a cutting assembly is arranged in an inner cavity of the water spraying cover body. According to the cutting device, the angles of the first overturning plate and the second overturning plate can be adjusted through the driving assembly, and it can be guaranteed that sprayed water is guided to the cutting center of the cutting assembly and the workpiece body by adjusting the angle of the first overturning plate; therefore, the temperature in the cutting process can be controlled within a reasonable range, workpiece material deformation and performance change caused by high temperature are avoided, meanwhile, abrasion and passivation caused by overheating of the cutting assembly are reduced, and the service life of the cutting assembly is remarkably prolonged.

1. Name of the product in this design: Multipurpose marking tool. 2. Purpose of this design: to draw positioning lines, circles, and contour lines. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.