45results about How to "Avoid damage phenomenon" patented technology

The invention provides a control method and system of a wafer UV film sticking machine. The control method comprises the steps that a preset material rolling mechanism is driven to discharge a film material; a preset film cutting mechanism is driven to cut the film material around a preset profiling jig; transferring the cut film to a preset attaching head; a preset film tearing mechanism is driven to tear off waste films in the cut films; the attaching film is attached to a wafer on a preset attaching platform; driving a preset easy-to-tear tape mechanism to attach the easy-to-tear tape to the wafer to obtain a wafer finished product; and discharging the wafer finished product to a preset placing rack. According to the automatic film pasting machine, after the film material is discharged through the film rolling mechanism and cut, the waste film is torn off through the film tearing mechanism, the attached film is attached to the wafer, and the easy-to-tear tape is attached, so that film rolling, film cutting, film tearing, film pasting and easy-to-tear tape attaching can be integrated, a traditional manual film pasting mode is replaced, automatic film pasting is achieved, and the production efficiency is improved. The intelligent degree and the working efficiency are greatly improved, and the phenomenon of pollution or damage to the UV film is avoided.

The invention discloses engine oil seal and production detection equipment and method, the engine oil seal and production detection equipment comprises a fixed base and a lifting frame, the lifting frame is fixedly mounted on the outer surface of the upper end of the fixed base, and a butt joint base is fixedly mounted in the middle of the upper end of the fixed base; a sealing cover is movably installed at the position, located above the butt joint base, of the inner side of the lifting frame, the lifting frame and the sealing cover are driven through a lifting rod, an installation base used for installing an oil seal is arranged on one side of the lifting frame, and the sealing cover is connected and fixed through the lifting rod and a lifting plate. Four groups of lifting guide rods are arranged between the lifting frame and the lifting plate, and a pressure measuring pump is fixedly mounted at the upper end of the lifting frame; the tool can be suitable for installation operation between the oil seal and annular metal pieces with different calibers, the installation step during oil seal detection operation is rapidly completed, the phenomenon that the oil seal structure is damaged during installation is avoided, and meanwhile the tool can be flexibly suitable for installation of oil seal structures with different calibers.

The invention discloses a precision stamping device and a stamping method, and relates to the technical field of stamping dies, the precision stamping device comprises a body mechanism, the body mechanism comprises a base, a placing frame is fixedly mounted on the upper surface of the base, a lower die body is fixedly mounted on the upper surface of the placing frame, and an upper die body is arranged above the lower die body; a cleaning mechanism is arranged on one side of the placing frame; the cleaning mechanism comprises a knocking unit, and the knocking unit is located on one side of the containing frame and used for knocking and vibrating the containing frame. The cleaning mechanism further comprises an adsorption unit, the adsorption unit is located in the containing frame, the knocking unit is used in cooperation with the adsorption unit, and the adsorption unit is used for adsorbing and leading out blocked waste materials. And waste materials are prevented from being clamped in the discharging pipeline, damage to the die is avoided, and normal operation of the stamping process is guaranteed.

The invention discloses assembling equipment for an electric tricycle plate spring assembly, and relates to the technical field of plate spring assembling, the assembling equipment comprises a base, a first carrying mechanism used for carrying a steel plate is arranged on the upper side of the base, and an assembling mechanism used for assembling the steel plate is arranged on one side of the first carrying mechanism; a second carrying mechanism used for carrying screws and nuts is arranged on one side of the assembling mechanism, all steel plates are pressed through a first pressing block and a second pressing block, and meanwhile electric push rods and locking motors in the first pressing block and the second pressing block control the screws and the nuts to be automatically locked. The semi-arc plate is used for positioning rolling lugs for protecting the steel plates, so that the steel plates are effectively prevented from deviating when being pressed, and the assembling efficiency of the plate spring is high, and the semi-arc plate is used for positioning the rolling lugs for protecting the steel plates, so that the steel plates are positioned in the centers of the first pressing block and the second pressing block when being pressed, and the assembling efficiency of the plate spring is improved. And the effect of high plate spring assembling accuracy is achieved.

The utility model relates to the technical field of floor glass windows, and discloses a floor glass window mounting structure which comprises a window frame and a glass body, and square grooves are formed in the centers of the periphery of an inner cavity of the window frame; the double-head motor is arranged in the center of an inner cavity of the square groove, the two ends of the double-head motor are coaxially connected with threaded lead screws, and the surfaces of the threaded lead screws are evenly sleeved with conical sliding blocks; and the fixed insertion rods are arranged at the corresponding positions of the inner cavities of the square grooves, arc-shaped plates are installed at the inner ends of the fixed insertion rods correspondingly, and the surfaces of the fixed insertion rods are sleeved with reset springs correspondingly. According to the floor glass window mounting structure, a double-end motor drives a corresponding threaded lead screw to rotate, a conical sliding block moves in the opposite direction, a fixed insertion rod is driven to extrude towards the outer side and be inserted into a wall, and after the conical sliding block is disconnected from an arc-shaped plate, the fixed insertion rod is driven to reset under the action of a reset spring. And the phenomenon that the wall body is damaged during disassembly and assembly is avoided.

This utility model relates to the field of food processing equipment manufacturing technology, and in particular to a composite motion drive mechanism for a gluten roll winding device, which consists of a torque output unit and a drag force output unit. The winding assembly performs circumferential rotation under the drive of the torque output unit; the unloading cylinder, driven by the drag force output unit, completes axial reciprocating movement, causing the formed gluten to detach. The drag force output unit uses a transmission shaft as its power source, and through the cooperation of a cam mechanism, a multi-component transmission mechanism, a rocking component, and an elastic reset component, converts the power into the reciprocating rocking motion of the rocking component, thereby driving the unloading cylinder to move synchronously. Thus, on the one hand, the composite motion drive mechanism has a relatively simple design structure, and thanks to the operating characteristics of the cam mechanism, the unloading cylinder can achieve non-rigid unloading force application; on the other hand, by adjusting the contour curve of the cam mechanism and the parameters of the multi-component transmission mechanism, and with the assistance of the elastic reset component, the gluten roll winding device can adapt to various unloading requirements.

The utility model provides a fermentation tank beneficial to improving the density of halophilic strains, belongs to the technical field of halophilic strain fermentation, and aims to solve the problems that the inner wall of the conventional fermentation tank is relatively smooth and the halophilic strains are inconvenient to adhere. Comprising a tank body; a control module is fixedly arranged at the top of the tank cover; a ventilation structure is fixedly arranged between the outer side of the tank body and the interior of the tank cover, a stirring assembly is rotationally arranged in the bottom side of the tank body, and an automatic pressure relief structure is fixedly arranged in the top side of the tank cover; by means of the annular array type attachment protrusions and the attachment grooves, a microstructure can be formed on the inner wall of the tank body, and attachment and growth of halophilic bacteria are facilitated; meanwhile, a ventilation structure and an oxygen sensor are utilized, so that sufficient supply of oxygen in the culture solution can be ensured; a fermentation environment capable of improving the density of halophilic bacteria is provided.

The utility model belongs to the technical field of surface treatment of hot forgings, and particularly relates to a surface treatment device for hot forgings, which comprises a frame, a protective cover is fixedly connected to the top side of the frame, a discharge port is arranged on one side of the protective cover, a feed port is arranged on the protective cover, two limiting slide rails are fixedly connected to two sides of a port of the feed port, and the limiting slide rails are fixedly connected to the top side of the frame. The two limiting sliding rails are matched and slidably provided with a plugging plate, supporting bases are fixedly connected to the two sides of the protective cover, and first pneumatic cylinders are installed on the two supporting bases. When the device is used, oxide skin chippings can be prevented from splashing by arranging the protective cover, and the oxide skin chippings intercepted by the protective cover can fall into the waste residue collecting box by arranging the waste residue collecting box, so that the oxide skin chippings can be effectively collected, the phenomenon that the oxide skin chippings are scattered everywhere is avoided, and the service life of the device is prolonged. The cleanness of the ground and the surrounding environment of the equipment is ensured, and meanwhile, the pollution to the working environment is reduced.

The plastic uptake heating forming device comprises a control cleaning assembly and a pressurizing component, a lower forming assembly connected with a bolt in a sleeving mode is arranged on the inner edge side of the control cleaning assembly, and a demolding mechanism installed in a sleeving mode is arranged on the inner edge side of the lower forming assembly; a blister box product body is arranged above the lower forming assembly, and a lifting output mechanism assembled through bolts is arranged above the side of the control cleaning assembly. According to the device, after an air valve outputs power to drive an output end to operate, a pressurizing air pump outputs power to drive the output end to operate, and the air valve, an air inlet nozzle, the pressurizing air pump, a connecting pipe and a sealing cover input power to drive air pressure to be input into a pressing forming assembly; and through elastic output of the inner partition plate, the pneumatic telescopic rod, the opening and closing piece, the spring rod set and the pushing and pressing plate, the effect of pneumatically pushing out the product through air pressure is achieved, and therefore the phenomenon that the product is damaged due to manual demolding can be prevented.

The utility model relates to the technical field of motor vehicle accessories, and specifically discloses a waterproof and dustproof protection type ignition coil, which comprises an ignition coil body, a protective cover is installed on the outer ring surface of the ignition coil body, a lower end of the protective cover is provided with a matching cover, and a sealing cover is hingedly connected to the upper end of the protective cover. In the utility model, the casing, the matching cover and the protective cover form a relatively sealed space, and the ignition coil body is located in the space, which effectively plays a waterproof and dustproof effect on the sealing element of the ignition coil body, thereby avoiding damage to the sealing element of the ignition coil body caused by external water and dust. In addition, the upper side of the protective cover is provided with a sealing cover, so that the upper end of the ignition coil body can be sealed and protected by the sealing cover, thereby avoiding damage to the upper end device and bolts of the ignition coil body caused by external dust and water, and further improving the service life and stability of the ignition coil when used in harsh environments.

The present invention relates to the structure and construction of a highway bridge expansion device, and in particular to a connecting mechanism of a highway bridge expansion device. It includes embedded parts that are embedded at intervals in the concrete structure at the bottom of a reserved groove opened at the beam end or the bridge head, and assembled with the anchor bars of the expansion device through overlapping bars; the embedded parts are embedded as a whole in the concrete structure at the bottom of the reserved groove, the top of the embedded parts is not higher than the bottom surface of the inner cavity of the reserved groove, the top of the embedded parts includes an assembly part that can be fixedly assembled with the anchor bars and / or a connecting plate that can be fixedly assembled with the anchor bars, the overlapping bars are rectangular, and the overlapping parts of the overlapping bars and the anchor bars of the expansion device are penetrated by horizontal steel bars. The present invention effectively solves the problems of long construction period and great construction difficulty of highway bridge expansion devices in the prior art, and has the advantages of low construction difficulty and strength, fast construction speed, and convenience for standardized production.

An agricultural fertilization sprinkler device and method, belonging to the technical field of agricultural machinery and equipment, in order to solve the problem that the fertilization sprinkler device cannot perform root fertilization, and in the case of strong winds during the sprinkler irrigation process, water and fertilizer are blown to places outside the crops, resulting in water and fertilizer waste, the agricultural fertilization sprinkler device comprises a gantry and a traveling component fixedly arranged at the lower end of the gantry, a placement component is arranged at the middle of the upper end of the gantry, a mixing box and an air pump are fixedly installed on the top surface of the placement component respectively, a grinding component is arranged on the mixing box, a fertilizer box is fixedly installed on the top surface of the mixing box, a lifting component is arranged on the top surface of the inner cavity of the gantry, a plurality of sprinkler assemblies are slidably arranged on the lifting component, and a windproof component is arranged on the sprinkler assembly. No matter what the wind direction is, the first windproof plate and the second windproof plate can block and collect the blown water and fertilizer. In addition, the present invention can also perform sprinkler irrigation under the soil.

The anti-overheating device for the automobile repair part surface decoration machining robot comprises the machining robot, and a fixing plate is fixedly connected to the bottom of the machining robot. The cooling assembly is adsorbed to the surface of the machining robot through the magnetic block, meanwhile, the refrigeration assembly is started, the temperature guide block is cooled through the refrigeration piece, the interior of the water tank is cooled through the temperature guide block, meanwhile, the cooling fan is started to cool the cooling block, and the cooling block conducts heat dissipation on the right side of the refrigeration piece; and meanwhile, a submersible pump is started, water is supplied to a water supply box through the submersible pump, then water is conveyed into a copper pipe through a connector, then the copper pipe cools a copper block, the machining robot is cooled through a temperature conduction piece, and the functionality of the machining robot can be guaranteed. And an existing mode that heat dissipation is not carried out on the machining robot is replaced, and therefore heat dissipation can be conveniently carried out on the machining robot.

The present invention discloses an inner ear canal lighting device for deafness and nasal medicine, comprising a connecting tube and a battery, a rotating shaft is installed inside the connecting tube, a rotating handle is fixedly installed on the top of the rotating shaft, and a traction line is wound around the middle upper part of the rotating handle, a lighting lamp holder is installed and connected below the battery, a lighting lamp is arranged below the lighting lamp holder, and a first outer cover is fixed to the bottom of the lighting lamp holder, the lower part of the inner part of the first outer cover is connected to the second outer cover through a compression spring, a traction line is connected above the second outer cover, and a slider is fixed to the bottom of the second outer cover, the bottom of the slider is arranged inside the bearing, and the bearing is embedded inside the upper part of the bottom frame. The inner ear canal lighting device for deafness and nasal medicine is provided with a first outer cover and a second outer cover, and the first outer cover and the second outer cover can be telescopically connected, so that the degree of light diffusion of the entire lighting device can be well adjusted.

The invention belongs to the technical field of sealing, and particularly relates to a self-pressurization energy storage type seal and high-pressure pneumatic seal combined sealing assembly which comprises a self-pressurization energy storage type seal and a high-pressure pneumatic seal. The self-pressurization energy storage type seal and the high-pressure pneumatic seal are combined in series to be used for a working environment needing to isolate high-pressure liquid and high-pressure gas media, an ideal sealing state is achieved, the self-pressurization energy storage type seal is arranged on the side facing the liquid, and the high-pressure pneumatic seal is arranged on the side facing the gas. The self-pressurization energy storage type seal comprises a sealed shaft (1), a swallow-tail-shaped clamping sleeve (2), a V-shaped spring (3), a triangular block (4) and a sealing cavity (5). The high-pressure pneumatic seal comprises a pneumatic base body (6), an X-shaped ring (8), a large O-shaped ring (9) and a small O-shaped ring (10). Compared with a traditional sealing structure, the sealing assembly has a better high-pressure-resistant sealing effect.

The invention discloses an ips cell culture medium and a culture method, and aims to solve the technical problems that the current ips cell culture medium is slow in growth speed and relatively low in activity in the ips cell culture process, and the ips cells are easily damaged due to osmotic pressure change, shear force, oxidation and bubble action in the culture process. Comprising the following raw materials in percentage by weight: 90%-91% of water; the mass part of amino acid is 1%-2%; the mass part of vitamins is 1%-2%; 2%-5% of carbohydrate by mass; and the mass part of the inorganic salt is 1-3%. The ips cell culture medium provided by the invention can provide a necessary energy source, support cell energy metabolism, maintain osmotic pressure and pH value of cells, maintain the pH value of a culture solution in a range suitable for cell growth, supplement amino acids in the cell culture medium, promote cell growth and activity, and improve cell quality. And moreover, the phenomenon that the ips cells are damaged due to osmotic pressure change, shearing force, oxidation and bubble action in the culture process is avoided.

The utility model relates to the technical field of novel smoke exhaust fireproof valves, in particular to a novel smoke exhaust fireproof valve which comprises a valve body, a controller used for external control is arranged on the valve body, a plurality of control blades used for opening, closing and releasing smoke are arranged on the valve body, arc-shaped metal pieces used for limiting the control blades are symmetrically arranged on the valve body, and the arc-shaped metal pieces are arranged on the valve body. The arc-shaped metal piece is provided with a first rotating shaft used for controlling the blades in a rotating mode. Through the arrangement of the first rotating shaft and the connecting pieces, the controller can adjust all the blades only by rotating the middle control blade, the opening and closing time of the blades can be effectively saved, the first rotating shaft can effectively improve the rotating efficiency of the blades under the connection of the control piece, and compared with the prior art, the rotating efficiency of the blades is improved. The problems that a pressing device is complex in process and high in cost can be effectively solved, the sealing performance of the valve body can be achieved, and meanwhile installation inconvenience of a control blade control component can be reduced.

A method for forming a semiconductor structure comprises the steps that a substrate is provided, the substrate is provided with at least two selection grids, openings are formed between the adjacent selection grids, the selection grids are arranged in the first direction, and the first direction is parallel to the surface of the substrate; forming a floating gate layer on the surface of the opening and the top surface of the selection gate; forming a first sacrificial layer in the opening and on the surface of the floating gate layer at the top of the selection gate; and forming a second sacrificial layer on the first sacrificial layer. The first sacrificial layer and the second sacrificial layer are adopted as the sacrificial layers for forming the floating gate, compared with the scheme that only the first sacrificial layer is adopted as the sacrificial layer for forming the floating gate in the prior art, the thickness of the first sacrificial layer is reduced, and the second sacrificial layer with good step coverage rate and gap filling capability is formed on the first sacrificial layer; the possibility of hole occurrence is reduced, and the performance of the semiconductor device is improved.

The invention discloses a deburring device for stamping part manufacturing, and particularly relates to the field of stamping part manufacturing, the deburring device comprises a machining base, and a mounting frame is detachably mounted in the middle of the outer surface of the machining base. According to the device, the mounting groove, the hydraulic lifting rod, a liquid storage box and a filter screen are arranged, after a stamping part is cooled, cooling liquid on the surface of the stamping part can fall into the liquid storage box through the filter screen under the action of gravity, when the cooling liquid passes through the interior of the filter screen, the filter screen can filter waste chips in the cooling liquid, and the cooling liquid is cooled; according to the cooling liquid recycling device, the cooling liquid can be recycled to guarantee the quality of the cooling liquid falling into the liquid storage box, then a deburring assembly, a rotary positioning assembly and a filter screen are disassembled, and then a hydraulic lifting rod is started to drive the liquid storage box to move upwards until the liquid storage box is ejected out of a mounting groove, so that the cooling liquid can be recycled conveniently, loss of the cooling liquid is reduced, and the service life of the cooling liquid is prolonged. The processing cost is reduced.

The utility model discloses environment-friendly treatment and recycling auxiliary equipment for metallurgical waste residues, and relates to the technical field of metallurgical waste residue treatment devices, the environment-friendly treatment and recycling auxiliary equipment comprises an equipment support, a crushing bin is arranged at the upper end of the equipment support, and a feeding bin is arranged at the upper end of the crushing bin; according to the metallurgical waste residue environment-friendly treatment and recycling auxiliary equipment, a protective cover automatic opening and closing assembly is arranged at the upper end of a feeding bin, when a protective cover body needs to be opened, the output end of an electric telescopic rod is controlled by a control cabinet to reset, a pull rope is pulled, and meanwhile the protective cover body is driven to turn over along the interior of the feeding bin; the top of the feeding bin is opened, waste residues are poured into the feeding bin, and after the waste residues are poured, the output end of an electric telescopic rod is controlled by a control cabinet to extend, so that under the elastic potential energy of a supporting spring, a protective cover body is reset, and a pull rope is driven to move out along the interior of a communicating groove; therefore, the protective cover main body is automatically opened and closed.

The utility model provides a multi-temperature-zone pattern layer drying machine for PCB processing, which comprises a box body, a cover plate is hinged to an opening in the front side of the box body through a hinge, partition plates are evenly distributed in the box body, a base plate is arranged in the box body in a sliding mode through sliding strips fixedly arranged on the inner wall of the box body, and the partition plates and the base plate are arranged at intervals. Square openings are formed in the rear portion of the box body, protective covers are arranged in the square openings formed in the rear portion of the box body, draught fans and electric heating wires are arranged in the protective covers, clamping mechanisms which are evenly distributed are arranged on the upper portion of the base plate, each clamping mechanism comprises a U-shaped base, the U-shaped bases are evenly arranged on the upper portion of the base plate, and square bases are fixedly arranged at the two ends of the inner walls of the two side edges of each U-shaped base. According to the PCB clamping mechanism, the U-shaped seat is arranged on the base plate, and the clamping seat and the push block are arranged in the U-shaped seat, so that when the PCB is clamped, friction between the PCB and the clamping seat can be reduced while rapid clamping of the PCB can be ensured, and the phenomenon of damage caused by friction between the PCB and the clamping mechanism is avoided.

The utility model relates to the technical field of pallet forks, in particular to a single-drive bidirectional double-extending pallet fork which comprises a frame body, a middle movable frame and an upper movable frame, a driving gear and two primary driven gears are rotationally arranged on the frame body, the driving gear is in meshed connection with the two primary driven gears, and a driving part is arranged on one side of the frame body. A rack II is also fixedly arranged on the frame body; the middle movable frame is located above the frame body, a synchronous gear and two second-stage driven gears are rotationally arranged on the middle movable frame, the second-stage driven gears are connected with the synchronous gear and a second rack in a meshed mode, a first rack is fixedly arranged on the lower portion of the middle movable frame, and the first rack is connected with two first-stage driven gears in a meshed mode; a roller assembly is arranged on the lower portion of the upper movable frame, a third rack is fixedly arranged on the lower portion of the upper movable frame, and the third rack is connected with the two secondary driven gears in an engaged mode. According to the utility model, the telescopic stroke distance is effectively increased, and the application range is greatly widened; and meanwhile, bidirectional stretching can be performed.

The utility model discloses a position calibration device for implanting an insert terminal plug-in, which comprises a plate body assembly, a first positioning plate and a second positioning plate, at least two positioning holes are arranged on the plate body assembly, the first positioning plate and the second positioning plate are respectively arranged on two sides of the plate body assembly, and the first positioning plate and the second positioning plate are arranged on the plate body assembly. The first positioning plate is provided with at least two first positioning faces, the second positioning plate is provided with at least two second positioning faces, the two first positioning faces correspond to the two second positioning faces respectively, and the first positioning faces and the second positioning faces are planes. The two first positioning surfaces and the two second positioning surfaces respectively form an angle with the sliding direction of the first positioning plate, the angle is an acute angle, and the driving assembly is respectively in transmission connection with the first positioning plate and the second positioning plate. The insert machining device is easy to operate and low in cost, and the precision of insert machining is greatly improved.

The utility model provides an embedding type finned condenser for commercial display cabinet, relates to condenser field, include: shell subassembly and fin plate, shell subassembly includes side plate and bottom plate, and the front side and back side of side plate are equipped with side protective net, and the top of side plate is equipped with top protective net simultaneously, and the outer end of side plate is connected with ear plate, and the fin plate is connected with the top protective net. The fin plate is arranged between the side plates and wraps and clamps the outer walls of the condensation pipes arranged on the inner sides of the side plates, the upper side of the fin plate is connected with a bridging plate, convex teeth and tooth grooves are arranged on the edge of the inner side of the fin plate, a butt joint groove and a butt joint block are arranged on the inner edge of the top of the fin plate, and the butt joint groove and the butt joint block are connected in an inserted mode in a matched mode. And the convex teeth are matched and embedded with the tooth grooves. The air-cooled fin type condenser solves the problems that in the prior art, fins of an air-cooled fin type condenser are not convenient to disassemble, clean, replace and maintain, and the anti-collision and dustproof effects on the fins are not achieved.

The utility model discloses an auxiliary clamping device for lighting appliance manufacturing, include: transmission cover, both sides of transmission cover inner wall all is provided with connecting rod, the bottom of connecting rod is through to the bottom of transmission cover and is fixedly connected with the sleeve, the inside of sleeve is inserted with the limit sleeve, the opposite side of limit sleeve is mutual contact, the inside fixed connection of connecting rod has the rotation rod, the front side of rotation rod and the back all extend to the inside of transmission cover and with transmission cover's inner wall swing joint, the top fixed connection of transmission cover has the support rod, the top fixed connection of support rod has the handle, the inside of support rod has been seted up the sliding slot. The utility model can effectively hold the bulb and take, avoid the phenomenon that the user will cause the damage to the bulb when holding the bulb, has strengthened the practicality of the bulb, prevents appearing the phenomenon of manually taking the bulb to carry out the detection when needing the detection.

The utility model relates to aluminium foil rolling mill technical field, concretely relates to a rolling mill quick roll changing device, including rolling mill trolley body and setting trolley side plate in rolling mill trolley body both sides, the trolley side plate is opened and has the opening, the fixed setting of opening in the hydraulic cylinder of jacking, the telescopic end of jacking hydraulic cylinder is connected with the lifting side plate, two lifting side plate upper end all are provided with support mechanism, and support mechanism includes mounting seat and with the support subassembly of mounting seat connection, the mounting seat cover is set in lifting side plate's upper end, the support subassembly includes support frame, support block and baffle, the upper and lower both ends of support frame are connected with support block and mounting seat respectively, the top of support block is opened and has the arc slot, and the both ends of support block all are provided with baffle. The utility model is convenient for replacing aluminium foil rolling mill ironing roller, and the time of ironing roller process is saved, and the time of replacing ironing roller is shortened, thereby the downtime of aluminium foil rolling mill is shortened.

This application relates to the field of relays and discloses a relay closing control method and a three-phase energy meter. The method includes: acquiring the three-phase voltage values ​​of the relay, wherein the three-phase voltage values ​​include the first-phase voltage value of the first voltage phase, the second-phase voltage value of the second voltage phase, and the third-phase voltage value of the third voltage phase on the three-phase circuit connected to the relay; selecting a detection phase to determine the voltage zero-crossing detection phase based on the first-phase voltage value, the second-phase voltage value, the third-phase voltage value, and a preset voltage; and controlling the relay to close based on the voltage zero-crossing detection phase, so as to realize the relay closing at the voltage zero-crossing point. This application improves the service life of the relay.

The utility model discloses a high-pressure hot-pressing composite structure of a multilayer PE film, which comprises a box body and a tension assembly of the box body, the tension assembly comprises a guide rod fixedly arranged in the box body, a U-shaped frame is arranged on the guide rod in a sliding manner, a tensioning roller is rotatably arranged in the U-shaped frame, a guide roller A is rotatably arranged above the tensioning roller, and a guide roller B is rotatably arranged above the guide roller A; the lower part of the U-shaped frame is fixedly connected with an air cylinder, the air cylinder is provided with a pressure gauge, and one side of the air cylinder is fixedly provided with an air pump. According to the high-pressure hot-pressing composite structure of the multi-layer PE film, air pressure generated by the air pump is conveyed into the air cylinder through the air conveying pipe, so that the U-shaped frame at the end of the air cylinder is driven to move, the pressure in the air cylinder is adjusted through the pressure gauge on the air cylinder, and then the tensioning force of the tensioning roller can be observed; and therefore, the tension degree of the film can be adjusted according to different materials, and the hot pressing quality of the film is guaranteed.

This utility model discloses a handling device, including a support frame. First guide rails are provided on both sides of the upper part of the support frame, and first sliders are provided on the first guide rails. A movable plate is fixedly connected above the first sliders on both sides of the upper part of the support frame. A second drive wheel is provided on one side of a second mounting base. A second motor rotating shaft passes through the second mounting base and is fixedly connected to the second drive wheel. The two second drive wheels are connected by a second drive belt. Two vertical transmission components are provided on the movable plate, and the lower part of each vertical transmission component is fixedly connected to the mounting plate. Multiple equidistant connecting rods are provided on both sides of the mounting plate, and suction cups are fixedly installed below each connecting rod. This handling device is easy to move, has good handling stability, and can effectively avoid damage to the sheet metal during handling, effectively ensuring the quality of sheet metal processing.

The utility model discloses a pressure detection device for aviation mechanical part processing, comprising a detection bench, the bottom of the detection bench is provided with a group of pressure display meters capable of displaying pressure, the surface of the detection bench is provided with a group of control assemblies, and a group of display panels are installed above the control assemblies; the device is characterized in that two side supporting rods are fixed to the side wall of the detection table, the tops of the supporting rods are fixed to the bottom of a mounting table, a set of air conveying pumps are fixed to the top of the mounting table, and the output ends of the air conveying pumps extend into the mounting table and are connected to the connecting ends of a plurality of connecting hoses in a forked mode. The pressure detection device for aviation mechanical part machining is provided with the connecting hose, gas is conveyed into the connecting hose through the gas conveying pump, the connecting hose can be expanded, the connecting hose is attached to an aviation mechanical part body for circulation treatment, and the sealing effect of gas detection is guaranteed.