532results about How to "Avoid chipping" patented technology

The invention relates to the field of glass product processing, in particular to an automatic feeding and discharging device and process for a glass product press. The technical problem is that heat on the upper surface of a glass product is rapidly taken away by high-speed airflow, and the heat at the bottom of the glass product changes slowly, so that the glass product is easier to crack. Comprising a base, a first supporting column is fixedly connected to the base, the device further comprises a downward pressing mechanism and a clamping mechanism, the downward pressing mechanism is installed on the top of the first supporting column, the clamping mechanism is installed on the outer wall of the first supporting column, and a buffering mechanism is installed on the clamping mechanism. Cold air is driven by the first air blower and the second air blower to enter the first heat exchange channel and the second heat exchange channel respectively, the temperature of the glass product is reduced through heat exchange to shape the glass product, the top and the bottom of the glass product are simultaneously cooled, and the internal stress of the glass product is reduced. And fragmentation caused by overlarge internal stress during cooling and shaping of the glass product is prevented.

The invention discloses a temperature control method, electronic equipment and semiconductor process equipment, and belongs to the technical field of semiconductors. The method comprises the following steps: acquiring a current temperature set value; according to the current temperature set value, temperature control is conducted on all the temperature control areas, and heat preservation is conducted on the temperature control areas reaching the current temperature set value till the temperature difference between the temperature of all the temperature control areas and the current temperature set value is within a preset range; and repeating the steps of acquiring a next temperature set value, controlling the temperature of each temperature control area according to the next temperature set value, and preserving the temperature of the temperature control area reaching the next temperature set value until the temperature difference between the temperatures of all the temperature control areas and the next temperature set value is within a preset range. And the wafer bearing surface reaches the target temperature.

The utility model relates to the technical field of silicon wafer transportation, in particular to a silicon wafer guiding and normalizing device which comprises a workbench, mounting seats, a driving wheel, a normalizing wheel, a conveying mechanism and a normalizing belt, the two sides of the top end of the workbench are each provided with one mounting seat in a sliding mode, the output ends of transmission mechanisms on the mounting seats are connected with the driving wheel, and the workbench is provided with the conveying mechanism. A plurality of regulating wheels are arranged on the two sides of the conveying mechanism, the regulating wheels are rotationally connected with the mounting base, the driving wheel is in transmission connection with the regulating wheels through a regulating belt, and the regulating wheels and the regulating belt are arranged, so that silicon wafers can be guided, and the silicon wafers are kept in a proper stress state in the moving process; subfissure, edge breakage, corner breakage and breakage of the silicon wafer in the moving process are prevented.

The invention relates to the technical field of protective film cutting, in particular to an automatic cutting device for protective film machining, which comprises a bottom plate and a cutting laser head, a lower sliding plate is movably arranged above the bottom plate, a top block is arranged on the upper side of the lower sliding plate in a lifting manner, and a soaking mechanism is arranged in the top block; and an adsorption positioning mechanism is arranged on the upper side of the top block. Through the soaking mechanism and the follow-up jetting mechanism in the soaking mechanism, when the cutting laser head moves to cut the protective film, water can be continuously jetted to the edge cutting position after cutting, so that the water forms a water film at the edge cutting position, and the water film conducts a large amount of heat generated during cutting of the edge cutting position to the area nearby the protective film; and heat can be prevented from being concentrated at the edge cutting position, so that deformation or fragmentation of the edge cutting position caused by excessive concentration of heat at the edge cutting position can be prevented, the flatness of the edge cutting position of the protective film is further improved, and the cutting quality is improved.

The embodiment of the invention provides a solar cell and a photovoltaic module. The solar cell comprises a silicon substrate, the silicon substrate is provided with a first surface, the first surface comprises metalized areas and non-metalized areas which are alternately distributed in the first direction, the non-metalized areas located in the edge area of the first surface are edge non-metalized areas, and the edge non-metalized areas are edge non-metalized areas; the non-metallization area in the central area of the first surface is a central non-metallization area; the dielectric layer is arranged on the surface of the metallization region; the doped conductive layer is arranged on one side, deviating from the silicon substrate, of the dielectric layer; wherein the depth of the edge non-metallization area is smaller than that of the central non-metallization area. According to the embodiment of the invention, the damage to the edge area of the solar cell in the cleaning process can be reduced, the phenomenon of edge breakage is avoided, and the yield of the solar cell is improved.

An optical lens provided by the present invention comprises a lens barrel, and a lens group and a spacer element group which are assembled in the lens barrel, the spacer element group at least comprises a first spacer element and a second spacer element, the first spacer element is located between a first lens and a second lens and is in partial contact with the image side surface of the first lens, and the second spacer element is located between the second lens and the second lens. The second spacing element is positioned between the second lens and the third lens and is in contact with the image side surface part of the second lens; the maximum height L of the lens cone and the effective focal length f of the optical lens meet the following conditions: 2.44 lt; l / flt; 3.15, 3.15; the effective focal length f2 of the second lens, the spacing distance EP12 between the first spacing element and the second spacing element in the direction of the optical axis, and the center thickness CT2 of the second lens meet the following conditions: 2.90 mm <-1 > lt; (CT2 / EP12) / f2lt; 6.56 mm <-1 >. According to the invention, the problem that miniaturization and assembly stability of an optical lens in the prior art are difficult to consider at the same time is solved.

The utility model provides a horizontal oral liquid bottle arranging and conveying device which comprises a feeding device and a conveying line, a distribution disc device is arranged between the feeding device and the conveying line, the conveying line comprises a line body base frame, rotatable chain wheels are arranged at the two ends of the line body base frame respectively, a chain is further arranged, and the chain winds around the chain wheels. A plurality of round rollers which are arranged in parallel at intervals are arranged on the outer side of the chain, a rotating shaft of each round roller is connected with the chain, the distribution disc device comprises a rotatable round retaining wall, a rotating disc is arranged in the round retaining wall, a plurality of semi-cylindrical grooves are evenly distributed in the outer edge of the rotating disc in the circumferential direction, and a distribution disc feeding port and a distribution disc discharging port are formed in the upper end and the lower end of the round retaining wall respectively. The lower portion of the discharging port of the distribution disc faces the gap between the adjacent round rollers, and the problem that oral liquid bottles are prone to toppling during conveying is solved.

The invention relates to the technical field of liquid crystal glass cutting, in particular to a liquid crystal glass double-cutter cutting machine and a cutting method. Comprising a mounting frame, a controller, a positioning rod, a sliding plate, guide rails, a servo driving system, a cutting tool bit and the like, the controller is mounted on the mounting frame, the positioning rod is connected to the top face of the mounting frame, the sliding plate is slidably connected to the mounting frame, a square hole is formed in the sliding plate, the two guide rails are connected to the top face and the bottom face of the sliding plate respectively, and the servo driving system is mounted on the guide rails. The cutting tool bits are installed on the servo driving system and located on the two sides of the square hole correspondingly. Through cooperation of the cutting tool bits on the upper side and the lower side, the top face and the bottom face of liquid crystal glass can be cut at the same time, the cutting efficiency is improved, the two cutting tool bits are designed in a staggered mode, and the same positions of the top face and the bottom face of the liquid crystal glass can be prevented from being subjected to cutting pressure at the same time; therefore, the liquid crystal glass can be prevented from being broken due to overlarge pressure in the cutting process, and the cutting effect is guaranteed.

The invention relates to the technical field of surfaces, in particular to a special shaft sleeve and bearing bush for an aluminum-silicon wire, a preparation method and application of the special shaft sleeve and bearing bush for the aluminum-silicon wire, a composite coating covers a grinding part on a base material of the shaft sleeve and bearing bush, other parts are coated with silicon-based resin, and the base material of the shaft sleeve and bearing bush is cobalt-based heat-resistant alloy or 316L stainless steel. The material system of the composite coating at the opposite-grinding part of the shaft sleeve is CoCrAlY / Y2O3-Si / SiC, the thickness of the coating is 0.4-1.0 mm, the material system of the composite coating at the opposite-grinding part of the bearing bush is CoCrAlY-YSZ, and the thickness of the coating is 0.5-1.5 mm. The high-temperature-resistant, corrosion-resistant, wear-resistant and fragmentation-resistant shaft sleeve bearing bush suitable for the aluminum-silicon wire has good lubricity at a high temperature, and the service life of the shaft sleeve bearing bush is prolonged. Abrasion of the shaft sleeve bearing bush can be greatly reduced, fragmentation of the bearing bush is avoided, the service life of the shaft sleeve bearing bush is further prolonged, and it is guaranteed that the actual service life of the shaft sleeve bearing bush is stable.

The invention relates to the technical field of tablet presses, and discloses a tablet press for pharmaceutical tablets, comprising a support frame, wherein a middle die is arranged on the support frame, and an upper die and a lower die are slidably arranged on the support frame at upper and lower sides of the middle die, respectively; the upper die and the lower die are both provided with tablet pressing components for tablet pressing; the upper die is provided with a pre-pressing component for pre-pressing the tablet and a feeding component for ejecting the tablet out of the middle die; the lower die is provided with a screening component corresponding to the feeding component; the middle die comprises a positioning table, a rotating table which rotates with the movement of the upper die is provided in the positioning table, and a tablet pressing cavity is provided on the rotating table. Compared with the prior art, the invention has the following beneficial effects: the upper die and the lower die are synchronously close to the middle die, so as to avoid the tablets from being broken during the tablet pressing process; the pre-pressing component pre-presses the medicine powder, so as to avoid the flying powder during the compaction process, so as to prevent the tablet press and the tablets from being polluted, and to improve the production quality of the finished tablets.

The invention relates to the technical field of heavy metal ion detection equipment, in particular to chitosan heavy metal ion detection equipment and a detection method.The chitosan heavy metal ion detection equipment comprises a base, the base is provided with a moving assembly, the moving assembly comprises a moving seat horizontally arranged in a sliding mode and a lifting seat vertically arranged on the moving seat in a sliding mode, and the lifting seat is rotationally provided with a clamping seat; a deflection wheel rotating synchronously with the clamping seat is arranged in the lifting seat, abutting parts are symmetrically arranged on the deflection wheel, and protruding parts located on the two sides of the deflection wheel respectively are vertically arranged on the moving seat in a staggered mode. A sample pool, a cleaning pool and a detection pool. According to the chitosan heavy metal ion detection equipment and the detection method provided by the invention, the movable seat, the lifting seat and the clamping seat are utilized to realize clamping and constant-speed movement of the detection electrode so as to carry out soaking, movable cleaning and detection processes; and the problem that the gel-like chitosan film is broken and falls off due to unstable change of the moving speed when the detection electrode is manually taken is avoided.

The invention provides a sintered brick containing iron ore tailing mud and a preparation method of the sintered brick. The sintered brick comprises the following components in parts by weight: 50-70 parts of iron ore tailing mud, 10-15 parts of concrete mixing plant sludge, 10-15 parts of coal gangue, 6-10 parts of fly ash, 10-15 parts of akermanite, 5-7 parts of magnesium cordierite and 2-4 parts of an auxiliary agent. The preparation method comprises the following steps: (1) uniformly stirring akermanite and magnesium cordierite, and carrying out hot-pressing treatment to obtain a first hot-pressed mixture; (2) pre-sintering the iron ore tailing mud and the concrete mixing plant sludge to obtain a pre-sintered material; (3) uniformly stirring coal gangue, fly ash, the first hot-pressed mixture and the pre-sintered material, adding water until the water content is 40-50wt%, and aging to obtain a mixture; (4) adding an auxiliary agent into the mixture, uniformly stirring, aging, and carrying out compression molding to obtain a green brick; and (5) drying and firing the green brick to obtain the sintered brick. The prepared sintered brick is high in yield, harmless and resource utilization of the iron ore tailing mud is achieved, and the obtained sintered brick is light in dead weight, high in compressive strength and good in weather resistance.

The utility model discloses a waste photovoltaic panel glass dismantling device which comprises a working table and supporting legs arranged at the four corners of the lower side of the working table, a conveying belt is arranged in the middle of the upper side of the working table, sliding rails are arranged in the two sides of the middle of the working table respectively, and the sliding rails are arranged in the middle of the working table. Connecting blocks are arranged on the inner sides of the sliding rails, a device frame is arranged in the middles of the upper sides of the two connecting blocks, fixing plates are arranged on the outer portions of the left side and the right side of the device frame correspondingly, spring sleeve rods are arranged on the lower sides of the fixing plates, and pressing rods are arranged on the lower sides of the spring sleeve rods. By means of the arrangement of the abutting block and the sliding groove, the photovoltaic panel can move towards the right side more stably after being cut, fragmentation is prevented, smooth proceeding of the disassembling process is guaranteed, the laser heater is used for replacing a traditional heat conduction oil heating plate, the photovoltaic panel can be heated more efficiently, the disassembling efficiency is improved, and time and energy cost are saved.

The invention relates to the technical field of alloy smelting, heat treatment and machining, and discloses a machining process of a stainless steel gear for a small-tooth-difference planet gear transmission mechanism, which comprises the following steps: S1, refining a stainless steel ingot, carrying out desulfurization and dephosphorization treatment, and then pouring into a stainless steel rod; s2, roughly turning the stainless steel rod and dividing the stainless steel rod into gear blank sections; s3, the gear blank section is subjected to heat treatment, after solution treatment and heat preservation of the gear blank section are completed, the gear blank section is rapidly cooled to 32 DEG C or below in a water quenching or oil quenching or air cooling mode, then precipitation hardening aging treatment is conducted on the gear blank section, and then the gear blank section is air-cooled to the room temperature; s4, finish turning of the gear blank section; s5, gear manufacturing is conducted, specifically, the gear blank section is machined into a gear through a gear shaping or gear hobbing machining method; s6, low-temperature annealing is conducted, and then the gear is air-cooled to the room temperature; s7, accurate grinding is conducted, specifically, the surface except the tooth part is accurately ground to the design size; and S8, gear grinding is conducted, specifically, the tooth profile of the gear is ground to the finished product size.

The invention discloses a garlic deep processing and drying device, which relates to the technical field of fruit and vegetable drying. The main points of the technical scheme are as follows: the bracket is installed in a swinging component, a knocking component is arranged at the bottom of the bracket, and the swinging component is used to pull the bracket to swing so that the knocking component knocks the bottom of a tray to turn over the garlic slices and improve the evaporation efficiency. The effect is that the swinging component is arranged to pull the bracket to swing, so that the knocking component at the bottom of the bracket knocks the bottom of the tray on the bracket under the swinging, so that the garlic slices on the tray are vibrated, the gas circulation effect is improved, and thus the drying efficiency is improved. An elastic supporting component is also arranged. When the moisture of the garlic slices on the tray is continuously evaporated, the overall gravity of the tray becomes lighter, the pressure on the spring becomes smaller, and the spring lifts the tray, so that the knocking force of the knocking component on the bottom of the tray gradually becomes smaller, thereby avoiding the garlic slices from being broken due to excessive shaking when they are close to a shriveled state, thereby ensuring the appearance of the garlic slice products.

The utility model discloses a knuckle bearing installation mechanism, including installation seat and hydraulic cylinder, the inside of installation seat is fixed with the stop collar, and the inner wall top end of stop collar is provided with oil storage tank no. 1, the inner wall bottom end of stop collar is provided with oil storage tank no. 2, and the top end of oil storage tank no. An oil injection opening is formed in one end of the top wall of the limiting sleeve, and a limiting column is slidably connected into the limiting sleeve. Compared with an existing knuckle bearing mounting mechanism, the knuckle bearing mounting mechanism is provided with the radial limiting mechanism, radial limiting can be conducted on the downward pressing mechanism, the situation that in the downward pressing process of the downward pressing mechanism, a hydraulic cylinder deflects due to the counter-acting force of a workpiece or the uneven surface of the workpiece is avoided, and the practicability of the device is improved advantageously; and meanwhile, the device is provided with the shielding mechanism, shielding can be provided during the working period of the device, so that the situation that fragments fallen when the workpiece is broken injure nearby personnel is avoided, and the safety of the device is improved advantageously.

The invention discloses a flotation mineral separation device for mining, comprising a screening drum, a plurality of support frames are fixedly installed at the bottom of the screening drum, a driving motor is arranged between the support frames, and the driving motor is fixedly installed at the bottom of the screening drum, a pair of fixed pipes are fixedly connected to the side wall of the screening drum, and the fixed through pipes are symmetrically arranged, a collecting frame is installed at the top of the side wall of the screening drum, a drainage pipe is fixedly connected to the bottom of the collecting frame, and a screening drum is arranged inside the screening drum; compared with the prior art, the invention can make the transmission rod move under the action of the driving ring through the rotation of the driving shaft, so that the transmission shaft can swing up and down, the screening drum can cooperate with the internal water flow impact to clean and screen the raw coal blocks, small particles of impurities can float on the water surface under the action of the water flow impact and buoyancy, can enter the inside of the collecting frame along the water flow, can avoid the raw coal blocks from being broken during the screening process as much as possible, and can facilitate subsequent processing and screening.

The invention discloses a surface processing method of an irregular large-size tellurium-zinc-cadmium substrate slice. The surface processing method comprises the following steps: S1, cleaning an irregular large-size tellurium-zinc-cadmium wafer with an A surface and a B surface; s2, using a sapphire wafer as a substrate; s3, waxing and pasting are carried out, so that the tellurium-zinc-cadmium wafer and the sapphire wafer are attached and fixedly bonded together; s4, single-side thinning is conducted through a thinning machine, specifically, S41, the tellurium-zinc-cadmium wafer and the sapphire wafer which are attached, bonded and fixed together are placed on a workbench of the thinning machine, the inclination angle of the end face of a grinding wheel relative to the workbench is 0.0057 degrees, and S42, multi-step machining is conducted through the grinding wheel; s5, CMP polishing is conducted through a single polishing machine; s6, waxing: taking down the tellurium-zinc-cadmium wafer and the sapphire wafer from the single polishing machine, and removing white paraffin between the A surface of the tellurium-zinc-cadmium wafer and the sapphire wafer; and S7, the step S1 to the step S6 are repeated, surface processing is conducted on the A face of the tellurium-zinc-cadmium wafer, and finally the tellurium-zinc-cadmium wafer with TTV smaller than or equal to 2 micrometers and Ra smaller than or equal to 1 nm is obtained.

The invention relates to a back-illuminated semiconductor structure bonding method and a back-illuminated image sensor. The method comprises the following steps: providing a device wafer and a bearing wafer; the device wafer comprises a device layer and an epitaxial layer located between the device layer and the substrate; the device layer comprises a photodiode array; a first dielectric layer is deposited on the top surface of the device layer, and after the top surface of the first dielectric layer is planarized, the height difference between a middle area of the top surface of the planarized first dielectric layer and a peripheral area surrounding the middle area is obtained; depositing a fourth dielectric layer with a first thickness on the top surface of the ground third dielectric layer; the fourth dielectric layer is subjected to chemical mechanical grinding treatment, the fourth dielectric layer with a second thickness is removed, and the second thickness is smaller than the first thickness; and the top surface of the ground fourth dielectric layer is bonded with the front surface of the bearing wafer, so that at least the warping degree of the bonded wafer can be reduced, the number of bubbles on a bonding interface is reduced, and the device yield is improved.

The preparation method comprises the following steps: crushing raw materials, carrying out dual-frequency ultrasonic extraction in combination with a solvent to obtain a high-activity and high-oxidation-resistance component, filtering through a micro-filtration membrane, mixing an extracting solution and crushed filter residue raw materials according to a ratio, sterilizing, adding modified microcrystalline cellulose and other auxiliary materials, and mixing, so as to obtain the anti-aging body-consolidating and life-prolonging pill. And refining honey and pelleting to prepare the life-prolonging pill with high stability, good pill quality and high oxidation resistance.

The invention relates to a zero-dripping flame-retardant flexible cable and a preparation method thereof. The zero-dripping flame-retardant sheath material comprises the following components in percentage by weight: 10%-30% of EVA (Ethylene Vinyl Acetate), 1%-10% of POE (Polyolefin Elastomer), 1%-10% of LLDPE (Linear Low Density Polyethylene), 1%-10% of HDPE (High-Density Polyethylene), 1%-10% of a compatilizer, 0.1%-0.5% of an antioxidant, 20%-50% of an inorganic flame retardant, 0.2%-1% of carbon black, 0.5%-1% of silicone, 0.15%-0.5% of EBS (Ethylene Butylene Styrene), 0.01%-0.6% of TAIC (Triallyl The inorganic flame retardant comprises 10%-40% of magnesium hydroxide and 10%-40% of aluminum hydroxide, ethylene-methacrylic acid is selected as the compatilizer, a hindered phenol type antioxidant is selected as the antioxidant, and sepiolite is selected as the charring agent. The flame-retardant sheath prepared from the zero-dripping flame-retardant sheath material designed by the invention has excellent mechanical property and flame-retardant property, good flame-retardant effect, high carbon shell strength after combustion and no dripping phenomenon.

The invention relates to the technical field of waste resource recycling and automatic processing, and discloses a waste household appliance disassembling process parameter adaptive control method and system, and the method comprises the steps: carrying out the registration fusion of multi-view surface data, and obtaining a complete point cloud model; identifying a high-deformation area based on curvature features and fitting cutting reference surface parameters; performing smooth adjustment on the reference plane parameters according to the pose difference of the adjacent areas to obtain a coordinated reference plane set; generating an initial compensation vector in combination with the discrete points of the cutting path, and correcting direction mutation to obtain a preliminary compensation instruction; and real-time cutting feedback data are collected in the disassembling process, if the machining state is abnormal, the compensation vector of the follow-up path is corrected, and a target self-adaptive control instruction is obtained. According to the invention, self-adaptive precise cutting of waste household appliance parts with complex deformation and uneven material characteristics can be realized.

The utility model relates to the technical field of glass laser coding machines, and discloses a clamping device of a glass laser coding machine, which solves the problem that the glass laser coding machine is not easy to stably clamp glass when clamping the glass, and comprises a processing table, the upper surface of the processing table is fixedly connected with a mounting frame, and the mounting frame is fixedly connected with the glass laser coding machine. A laser machining mechanism used for laser machining is arranged on one side of the mounting frame, a clamping mechanism used for clamping glass is arranged on the upper surface of the machining table and comprises a motor A fixedly connected to one side of the machining table, the output end of the motor A is fixedly connected with a double-threaded rod, and the outer side of the double-threaded rod is in threaded connection with a connecting plate. The upper surface of each connecting plate is fixedly connected with a clamping plate, one side of each clamping plate is fixedly connected with a buffering pad, a sliding groove A is formed in the upper surface of the machining table, the connecting plates are connected into the sliding grooves A in a sliding mode, the number of the connecting plates is two, the two connecting plates are symmetrically arranged, and the purpose of stably and firmly clamping glass is achieved.

The invention discloses an automatic steel ball feeding machine for a ball mill, which comprises a ball storage unit, a push plate feeding machine and an inclined L-shaped conveying groove, the device further comprises an overload protection unit, the overload protection unit can automatically discharge excessive steel balls added into the ball storage chamber and store the steel balls additionally, and after a certain number of steel balls in the ball storage chamber are discharged from the discharging opening, the additionally stored steel balls can be automatically added into the ball storage chamber. According to the automatic ball feeding machine, the overload protection unit is arranged, overload discharging can be automatically conducted, unloaded steel balls are automatically added into the ball storage chamber through the height change of the ball storage chamber in the working process, overload of the ball storage chamber can be effectively avoided, and meanwhile unnecessary troubles caused by the fact that additionally stored steel balls are manually added into the ball storage chamber again are avoided.

The invention relates to a material mixing packaging bottle and a using method, the material mixing packaging bottle comprises a liquid material barrel and a solid material barrel, the solid material barrel is inserted into the liquid material barrel in a sliding mode, the inner wall of the solid material barrel is provided with a plurality of limiting supporting pieces, and the limiting supporting pieces are distributed around the axis of the solid material barrel at intervals; a gap is formed between every two adjacent limiting supporting pieces to form a liquid flowing groove, a freeze-drying bin is formed between the upper surfaces of the limiting supporting pieces and an inner cavity in the upper portion of the solid material barrel, freeze-drying balls are arranged in the freeze-drying bins, the lower end face of the solid material barrel is fixedly covered with a diaphragm, the inner wall of the bottom of the liquid material barrel is fixedly connected with a puncturing piece, and an inner cavity in the lower portion of the liquid material barrel is filled with essence. A mixed liquid flowing opening is formed in the bottom wall of the liquid material barrel in a penetrating mode, a bottom cover is detachably connected to the bottom face of the liquid material barrel, and a detachable limiting piece for limiting the solid material barrel to move downwards relative to the liquid material barrel is detachably connected to the outer wall of the upper portion of the solid material barrel. The freeze-drying device has the advantage that the possibility of freeze-drying ball fragmentation is reduced.

The utility model relates to electronic signature technical field, specifically disclose a kind of electromagnetic signature device, including signature equipment main part and signing pen, the one side of signature equipment main part is fixedly installed with connecting frame, the outer wall one side of connecting frame is fixedly installed with servo motor, the output of servo motor is fixedly connected with installation shaft, the surface of signature equipment main part is slidably installed with protective shell, the surface of installation shaft is rotatably installed with take-up drum, the surface of installation shaft is fixedly installed with hollow block, line rope can prevent signing pen from falling and losing when using, outwardly pulling signing pen can make line rope length increase, facilitate personnel to write signature, servo motor drives installation shaft rotation can be overlength line rope is reeled, avoid line rope too long or too short influence signing pen's writing experience, protective shell can cover signature equipment main part surface and protect, and cleaning cloth can wipe and clean screen when sliding.

The utility model relates to the technical field of doors and windows and discloses a high-strength broken bridge aluminum alloy door and window which comprises a frame body, hinges and a window body, the window body is installed on the frame body through the hinges, the front side surface of the frame body is fixedly connected with a semi-circular-ring-shaped fixing ring, the upper surface of the fixing ring is provided with a plurality of fixing grooves, and the fixing grooves are arranged in the frame body. The high-strength bridge-cut-off aluminum alloy door and window have the advantages that the window bodies are positioned by the aid of the fixing rods, accordingly, the window bodies cannot rotate, the window bodies can be prevented from rotating, the window bodies can be prevented from rotating, the window bodies can be prevented from rotating, and the high-strength bridge-cut-off aluminum alloy door and window can be prevented from being damaged by high-strength bridge-cut-off aluminum alloy door and window can be prevented from being damaged by the high-strength bridge-cut-off aluminum alloy door and window. The window body cannot be affected by wind power to repeatedly shake or collide with the frame body under the conditions of strong wind power and the like, so that the window body is prevented from being broken and damaged due to collision, the safety of the broken bridge aluminum alloy door and window is improved, and the practicability of the broken bridge aluminum alloy door and window is guaranteed.

This utility model relates to the field of wood ear mushroom packaging technology and discloses a wood ear mushroom packaging vacuum coating machine, including a worktable, a vacuum chamber hinged to the top of the worktable, a connecting pipe connecting the worktable and the vacuum chamber, multiple material feeders rotatably arranged at the bottom of the vacuum chamber, and a spreading component movably arranged inside the worktable. The spreading component includes a placement platform, a moving shaft, and a lifting column. The lifting column is fixedly arranged at the bottom of the placement platform, and the moving shaft is rotatably arranged inside the worktable. The lifting column is sleeved on the moving shaft. The placement platform clamps the wood ear mushroom product through the four-sided abutment plates. The disc eccentrically arranged on the moving shaft pushes the lifting column, and the lifting column pushes the placement platform. The placement platform, through the up and down vibration of the vibration spring, drives the packaging to vibrate and spread the wood ear mushroom evenly, so that the wood ear mushroom particles are evenly distributed in the packaging, avoiding the particles from breaking the packaging and solving the problems of poor sealing and easy moisture oxidation caused by the gaps between particles.

The utility model relates to a damping buffering packaging bag which comprises a bag body, a buffering sleeve is fixedly connected in the bag body, the lower end of the buffering sleeve is fixedly connected with a plurality of sliding pipes, the lower ends of the sliding pipes penetrate through and extend to the lower portion of the bag body, and a base plate is arranged below the buffering sleeve. A plurality of buffering mechanisms are movably connected between the base plate and the sliding pipe, an intermediate plate is fixedly connected to the lower end of the bag body, and a plurality of stable air bags are fixedly connected between the lower end face of the intermediate plate and the upper end face of the base plate. Buffering and damping are conducted on the bag body through the buffering sleeve and the buffering mechanism, and therefore dry goods in the bag body are prevented from being broken.

The utility model relates to the technical field of medical tools, in particular to a medical out-call first-aid kit. The utility model provides a medical out-call first-aid kit capable of fixing a kit cover. The medical out-call first-aid kit comprises a protective shell, a protective cover, a handle, a connecting block, a fixing block, a first elastic piece, a clamping block and the like. A protective cover is rotatably mounted on the protective shell, handles are arranged on the front sides of the protective shell and the protective cover, a left connecting block and a right connecting block are arranged on the front side of the protective cover, a fixing block is slidably connected to the bottom of each connecting block and sleeved with two first elastic pieces, and the two ends of each first elastic piece are connected with the corresponding fixing block and the corresponding connecting block respectively. A left clamping block and a right clamping block are arranged on the front side of the protective shell. According to the first-aid kit, the pawl is pulled through the second elastic piece and can clamp the ratchet wheel, so that the ratchet wheel cannot rotate, the protective cover is prevented from toppling over, and the effect that the protective cover can be fixed through the first-aid kit is achieved.