21results about How to "Avoid grinding" patented technology

The invention discloses a burn wound eschar abrading device for surgical debridement, which relates to the technical field of eschar abrading devices and comprises a shell, an arc eschar abrading surface fixed at the bottom of the shell, a motor arranged at the top of the shell and a partition plate fixedly connected in the shell. The scab abrading tool bit is exposed out of the scab abrading face and can adjust the contraction angle of the tool bit in a self-adaptive mode, the oil pressure control assembly contracts the scab abrading tool bit in a self-adaptive mode based on the radian of the wound scab, the scab abrading driving structure starts and stops rotation of the scab abrading tool bit through the oil pressure control assembly, and the dust collection assembly is fixed to the center of the bottom of the partition plate. The eschar abrading tool bits are distributed in the circular array and rotate oppositely in pairs, the rotating directions of the opposite eschar abrading tool bits are opposite, the eschar abrading tool bits counteract and reduce shaking of the skin and the wound eschar in the friction direction of the eschar abrading tool bits, continuous tearing between the wound eschar and skin tissue is effectively avoided, and the healing effect of the skin is improved. And the discomfort of the patient and the risk of secondary injury of the wound surface caused by tearing the connection between the wound surface scab and the tissue due to high-speed shaking are reduced.

Provided is a structural member capable of preventing the surface of a protective film from being polished at or above necessary during manufacturing. A structural member (10) is provided with: a base material (100); and a protective film (200) that covers the surface (110) of the substrate (100). Particles (300) having a higher hardness than the protective film (200) are dispersed inside the protective film (200).

According to the semiconductor packaging structure and the preparation method thereof provided by the invention, the diffusion barrier layer is formed on the upper surface of the first packaging chip, and the diffusion barrier layer is only ground in the process of grinding and thinning the first packaging layer, so that a Cu metal column and the first packaging chip are prevented from being ground at the same time, and therefore, Cu metal can be prevented from remaining on the first packaging chip; therefore, the first packaging chip is prevented from being polluted by diffusion of Cu metal, and the problems of function failure, such as breakdown voltage reduction and electric leakage, of a chip sensitive to Cu caused by diffusion of Cu metal are avoided.

The present application relates to vertical sand mill technical field, specifically to a kind of closed circulation vertical sand mill, using the stirring tank, feed pump and vertical grinding device communicated in turn, vertical grinding device includes vertical grinding body, overflow shell, driving spindle, static ring, dynamic ring, centrifugal rotor and screen, when using, material is stirred in stirring tank, pumped into vertical grinding device by feed pump, material flows into overflow shell by screen and dynamic ring, without mechanical seal, avoid the problem that material easily leaks by using mechanical seal setting, screen, dynamic ring and static ring are used to prevent grinding medium from entering overflow shell, and grinding medium is thrown to periphery under the action of centrifugal rotor to avoid grinding medium and screen friction and cause screen damage, material is overflowed into stirring tank by the high-low liquid level difference of stirring tank, form closed circulation, ensure the stability of product quality.

The utility model discloses an intergranular corrosion test bending method frock, including testing machine, press bending frock and upper pressure head. Press bending frock contains frock mesa, its upper end is connected two groups of support sliding table, and is equipped with press bending seat on the upper end of support sliding table, and the lower end of side edge is fixed rack piece, and the lower end of mesa is penetrated with driving shaft and driven shaft, and the first gear and second gear are fixed on the shaft respectively, and the end of driving shaft has adjusting handle, and the both sides of mesa are equipped with guide rod support and guide rod. Rotating adjusting handle, driving shaft drives rack piece through gear, makes both sides support sliding table synchronous reverse movement, and guide rod and sliding groove ensure the moving accuracy, realize the accurate alignment of support center and upper pressure head. The semicircular smooth surface of press bending seat avoids sample grinding. This frock solves the problem of big traditional manual adjustment error and low efficiency, and the support spacing adjustment error is less than or equal to 0.1mm, and is convenient to operate, is applicable to different specifications sample, and improves intergranular corrosion test precision and efficiency.

The utility model discloses a refractory brick grinding auxiliary device, and belongs to the technical field of refractory brick production. The device comprises two transverse plates, an adjusting groove is formed in one side of each transverse plate, first sliding grooves are formed in the two sides of the inner wall of each adjusting groove, first sliding blocks are connected into the first sliding grooves in a sliding mode, the same moving plate is connected between the two first sliding blocks, a nut is embedded in the moving plate, a threaded rod is connected into the nut in a threaded mode, and the threaded rod is connected with the adjusting groove in a threaded mode. One end of the threaded rod extends out of the adjusting groove and is connected with a rotating disc, and a moving block is slidably connected into the adjusting groove. According to the conveying device, the threaded rod is arranged, the rotary disc drives the threaded rod to rotate, then the threaded rod drives the movable plate to move through the nut, the movable plate enables the movable blocks to move through the elastic force of the spring, and then the two movable blocks keep the tension of the conveying belt through the rolling wheels; and the conveying belt is prevented from slipping due to insufficient tension to influence the conveying of refractory bricks.

The utility model relates to the technical field of refrigerator's cover plate's production device, more specifically discloses a kind of punching device for processing cold storage air duct cover plate, it includes: workbench, for cover plate placement;Several positioning blocks, set on workbench, for the side of cover plate is contacted;Several through holes, along vertical direction, penetrate workbench;Carrying plate part, slidably set below workbench;Several universal ball, for rollable support cover plate, corresponding each through hole is installed on carrying plate part;Elastic support component, for elastically supporting carrying component, universal ball protrudes carrying plate part fixed height;Pressing assembly, set on workbench, in the top of cover plate, for pressing cover plate;Punching assembly, for punching to cover plate;Through universal ball to roll contact cover plate, it can facilitate to move cover plate and slide on universal ball, until the side of cover plate is abutted positioning block, complete positioning, can effectively prevent the side of cover plate is ground, guarantee product quality.

The present invention relates to a packaging pad and a mobile phone box suitable for a mobile phone and its accessories. The mobile phone box comprises a box body and a packaging pad, wherein the packaging pad comprises a bottom liner, a middle partition seat and an upper partition seat; the bottom liner is formed by folding a lining cardboard, and the bottom liner has a first accommodation space for accommodating a data cable, a second accommodation space for accommodating an adapter, and a third accommodation space for accommodating an earphone cable; the middle partition seat is formed by folding a middle partition cardboard, and the middle partition seat is arranged between the first accommodation space and the second accommodation space; the upper partition seat is formed by folding a flat partition cardboard, and the upper partition seat is arranged above the bottom liner and the middle partition seat, and the upper partition seat has a fourth accommodation space for accommodating a mobile phone, and the fourth accommodation space has a first avoidance hole for avoiding a mobile phone camera; the present invention has a simple structure, is conducive to automatic assembly, reduces packaging costs, effectively avoids the occurrence of the phenomenon of abrasion on the surface of accessories, has higher reliability, is conducive to recycling, and is more environmentally friendly.

This invention discloses a nuclear magnetic resonance (NMR) method for measuring the solid phase deposition of crude oil in porous media, belonging to the field of oil and gas reservoir development technology. By using a single saturation of crude oil in a core sample and leveraging the characteristics of online NMR technology, the method employs a comparison of experimental and NMR measurements, along with a 1:1 standard line reference, to determine the standard echo interval T in the transverse relaxation time T2 measurement acquisition parameters. E This method directly measures the amount of solid phase deposition in pore fluids in situ, solving the technical problems of existing technologies that cannot maintain the original characteristics of the sample, effectively avoid the interference of solid skeleton response and solid phase deposition particles, and are difficult to measure the solid phase deposition content of active oil in situ. It achieves the technical effect of rapid, efficient and accurate measurement of the amount of crude oil solid phase precipitation in cores under specific temperature and pressure conditions. The method is reliable in principle, simple to operate and highly applicable, and the test results are accurate and reliable, making it more suitable for the fine characterization needs of complex oil and gas reservoirs.

The present invention relates to the technical field of optical fiber sensors, and proposes an optical fiber grinding method and a grinding processing device, wherein an optical fiber FP sensor is clamped by a designed optical fiber clamping mechanism, and is driven to move through a three-axis displacement mechanism and a grinding disc to perform optical fiber grinding. A host computer electrically controls the three-axis displacement mechanism and the grinding disc, and during the grinding process, a demodulation system is composed of a broadband light source, an optical circulator, and a spectrometer to detect optical fiber spectrum information and convert it into an electrical signal, which is transmitted to the host computer. The host computer monitors the grinding thickness in real time through a demodulation algorithm, and establishes communication with the three-axis displacement mechanism and the grinding disc through a hardware module, and then controls the action of the three-axis displacement mechanism and the grinding disc according to the grinding thickness detection information. This method uses a demodulation algorithm and a spectral signal detection technology to realize online monitoring of cavity length thickness during the grinding process, which is conducive to ensuring processing accuracy and efficiency.

The invention discloses a machining device for a high-temperature quick-opening spherical sealing stop valve, and relates to the technical field of valve machining, the machining device comprises a working table, a driving assembly and a clamping assembly, a bearing disc is fixedly arranged in the middle of the top end of the working table, the driving assembly is arranged on one side of the top end of the working table, and the driving assembly comprises a driving shaft; one end of the driving shaft is fixedly connected with a mounting rod; the expanding and supporting assembly comprises a plurality of supporting rods which are uniformly arranged on the periphery of the mounting rod and can be used for expanding and fixing the ball body; and the positioning assembly can be used for positioning when the ball body is mounted. Through cooperative use of the expanding and supporting assembly and the positioning assembly, the positioning assembly limits the ball body, transverse centering of the ball body is achieved, the expanding and supporting assembly conducts expanding and supporting fixing on the ball body, longitudinal centering of the ball body is achieved, all-directional centering and expanding and supporting fixing on the ball body are achieved, and the machining precision and effect of the valve ball body are improved.

The utility model discloses an alloy steel plate surface flatness quality inspection device, which belongs to the technical field of flatness detection, and comprises a flatness detector body, the lower part of the flatness detector body is slidably provided with a graduated scale, the side part of the graduated scale is symmetrically and fixedly connected with threaded seats, and the threaded seats are fixedly connected with the graduated scale. And a magnetic bolt is mounted in the threaded seat in a threaded manner. And the lower end of the threaded seat is fixedly connected with a leather cushion. The graduated scale comprises a scale body and a filler strip, and the filler strip is fixedly connected to the outer end of the scale body. The magnetic attraction bolt comprises a rotating block, a threaded shell and a magnet block, the rotating block is fixedly connected to the upper end of the threaded shell, the threaded seat is placed on a target alloy steel plate, the alloy steel plate is tightly attracted through the magnetic attraction bolt, the threaded seat stably stands on the alloy steel plate, and then the flatness detector body is positioned in a sliding mode for testing. And through a magnetic bolt adsorption standing mode, the overall thickness is reduced, and storage is convenient.

The utility model discloses a zinc alloy coding device, and relates to the technical field of zinc alloy processing. The zinc alloy conveying device comprises a base, a mounting frame and a fixing frame are arranged at the top of the base, a rotating shaft is arranged on the inner side of the fixing frame, a rotating roller is arranged on the outer surface of the rotating shaft, and a crawler belt is arranged on the outer surface of the rotating roller. The cleaning brush can wipe dust on the surface of the zinc alloy, after the exhaust fan is started, the dust can be sucked into the dust collection box through the air entraining cover, the dust suction pipe and the dust suction pipe, the dust removal effect is achieved, the adhesiveness of ink is guaranteed, after code printing is completed, air exhausted by the exhaust fan enters the heating box, the air is heated by the electric heating wire, and the dust removal effect is improved. And generated hot air is sprayed out through a hot air pipe, an air distributing pipe and a spray head, then ink on the zinc alloy is dried, the situation that the ink is abraded in the later period is avoided, and the code printing effect is improved.

The wandering star wheel comprises a body, the body is provided with a liquid flowing hole and a space ring hole, a space ring is arranged in the space ring hole, the space ring is provided with a fixing hole used for containing the quartz plate, and the outer edge of the space ring is provided with a fixing protrusion to abut against the opening edge of the space ring hole. The space ring hole is round so that the space ring can rotate relative to the body, and a rubber strip is arranged on the opening edge of the fixing hole so as to abut against the quartz plate. According to the wandering star wheel for grinding the double faces of the quartz plate, smooth circulation of liquid is guaranteed through the liquid flowing holes, and the stable machining environment is maintained; the circular space ring hole allows the space ring to rotate relatively, the quartz plate is promoted to rotate automatically, and the surface uniformity and precision are improved; fixing protrusions on the outer edges of the space rings reduce friction and increase the autorotation speed; the rubber strip at the edge of the fixing hole provides buffering, vibration and impact are reduced, the defect occurrence rate is reduced, and the product yield is remarkably improved.

The utility model relates to the technical field of ball mills, one embodiment of the utility model provides a ball mill for stone raw material grinding, the ball mill comprises a ball milling barrel and a driving mechanism, the driving mechanism is used for driving the ball milling barrel to rotate, the ball mill further comprises a collecting outer barrel, a filtering mechanism and a discharging assembly, and the collecting outer barrel is rotationally arranged outside the ball milling barrel in a sleeving mode; the filtering mechanism is arranged on the side wall of the ball-milling cylinder and used for outwards filtering and discharging the ground stones which can pass through the aperture of the filtering mechanism into the collecting outer cylinder, and the discharging assembly is arranged on the collecting outer cylinder and used for discharging the ground stones. The technical problems that in the prior art, due to the randomness of the motion trail and the collision mode of steel balls in a ball mill, some stones are collided and ground too many times, some stones are not ground, and secondary machining needs to be conducted are solved.

The invention relates to the technical field of optical glass lens cutting, in particular to an optical glass lens multi-wire cutting device and method.The optical glass lens multi-wire cutting device comprises a mounting shell, a cutting platform is fixedly connected to the lower portion of one side of the mounting shell, a first motor is fixedly mounted at the top of the mounting shell, and a wire winding barrel is fixedly connected to an output shaft of the first motor; the surface of the wire winding cylinder is connected with a wire positioning mechanism; the diamond wire is guided in a multi-section mode through the guide wheels at the two ends of the multiple installation frames, optical glass lenses are cut in a multi-section mode, and therefore the cutting efficiency of the optical glass lenses is improved, the distances between the multiple installation frames are synchronously adjusted through the action of the distance adjusting mechanism, and the cutting efficiency of the optical glass lenses is improved. The distance between the multiple sections of the diamond wire can be synchronously adjusted according to the cutting thickness, and the cutting flexibility degree is improved.

This utility model relates to a vertebral anchoring and positioning reaming device, comprising: a working sleeve, which includes a sleeve body and a first cylindrical channel disposed within the sleeve body and extending axially; the lower end of the sleeve body has an arc-shaped serrated structure surrounding the end face of the first cylindrical channel; and an eccentric reamer for insertion within the first cylindrical channel, comprising a cylindrical drill rod, a second cylindrical channel disposed within the drill rod, and a drill bit disposed at the lower end of the drill rod and connected to the second cylindrical channel; the second cylindrical channel and the central axis of the drill rod are not on the same straight line. Compared with the prior art, this utility model has advantages such as reliable anchoring and precise bone removal.

The invention discloses a hemispherical harmonic oscillator processing device and method, and the device comprises a base which comprises a first sliding table and a second sliding table which are in sliding connection; the sliding body is in sliding connection with the first sliding table and can slide in the third direction close to or away from the second sliding table, and the first sliding table, the second sliding table and the sliding body are perpendicular to one another; the first rotating shaft is fixedly connected to the side wall of the sliding body, and the side wall of the sliding body is perpendicular to the first sliding table and close to the side wall of the second sliding table; the first fixer is arranged on the first rotating shaft and is used for fixing a to-be-processed hemispherical harmonic oscillator; the second rotating shaft is fixedly connected to the second sliding table; the second fixer is arranged on the second rotating shaft and is used for fixing the ball head grinding wheel; and one side of the ball head grinding wheel is fixed to the second fixator, the other side of the ball head grinding wheel extends to be close to the first fixator, and when the to-be-machined hemispherical harmonic oscillator is fixed to the first fixator, the other side of the ball head grinding wheel can extend to be in contact with the to-be-machined hemispherical harmonic oscillator.

The invention relates to the technical field of hygienic products, and discloses a hygienic product arc-shaped ear sticker cutting mechanism which comprises a main body assembly and a conveying belt, mounting frames are arranged on the two sides of the conveying belt, and knife rollers are arranged on the mounting frames; the cleaning assembly is arranged on one side of the knife roll and comprises a supporting column, the two ends of the supporting column are fixed to the two mounting frames correspondingly, a movable block is movably connected to the outer side of the supporting column, a sleeve is rotationally connected to one side of the movable block through a bearing, a cleaning block is fixed to one end of the sleeve, and a connecting sleeve is rotationally connected to the outer side of the sleeve; the connecting sleeve is fixed to the movable block through a connecting column, and a discharging hole is formed in the sleeve. The device has the beneficial effects that the blades on the knife roll can be continuously cleaned through the arrangement of the cleaning assembly, and the blades on the knife roll can be regularly ground through the arrangement of the grinding assembly, so that the situation that the knife roll needs to be treated after shutdown is avoided, and the production efficiency can be improved.

The invention relates to the field of speed reducers, and discloses a composite push rod type oscillating tooth speed reducer with a double uniform load structure, which comprises a wave exciter assembly, an oscillating tooth frame assembly, an inner gear ring assembly and a plurality of composite push rod type oscillating tooth assemblies. The oscillating tooth assembly comprises a deformable push rod made of a low-elasticity-modulus material, a first semicircular groove and a second semicircular groove are formed in the two ends of the deformable push rod respectively and used for containing tooth top and tooth bottom roller pins to form a double-arc-surface sliding pair, the side face of the deformable push rod and an oscillating tooth frame radial groove form plane sliding contact, and friction loss is remarkably reduced. Linear contact rolling friction is formed between the roller pins, the tooth shape of the inner gear ring and the outer ring of the shock wave device, and the transmission efficiency is improved. The inner gear ring is of a thin-wall steel annular tooth profile and engineering plastic base body composite structure, controllable radial elastic deformation is generated under the action of meshing force of the multiple movable teeth, and second heavy loads are evenly distributed. According to the design, high-precision, high-efficiency and low-cost precision speed reduction transmission is realized through cooperation of material elastic deformation and a structure.

The present invention relates to the field of feed detection technology, and discloses a clean feed microorganism detection device and method, the device comprises a detector, a support is provided on the top of the detector, a detection head is provided on the top of the detector, an opening is provided in the middle of the support, the detection head corresponds to the position of the opening, an annular frame is provided in the opening, and a measuring cup is provided inside the annular frame. The present invention can realize the replacement of the measuring cup, and after the replacement, by adjusting the position of the measuring cup, it is possible to achieve a comprehensive detection of the feed in the measuring cup, and by replacing a large measuring cup with a bottom radius greater than the measuring range of the detection head, the number of operations is greatly reduced, manpower is saved, and in the process of adjusting the position of the measuring cup, the bottom of the measuring cup can be protected to avoid the bottom of the measuring cup from being worn, and it can be ensured that the measuring cup can be smoothly lowered and reset during the adjustment process, so that it fits with the detection head, thereby ensuring the smooth progress of subsequent detection.