807results about How to "Avoid drifting" patented technology

The invention provides a bulk acoustic wave resonator, a filter and a manufacturing method thereof. The bulk acoustic wave resonator comprises a bulk acoustic wave resonator carrier with a first resonant cavity, a first electrode layer, a piezoelectric layer, a second electrode layer and a bulk acoustic wave resonator cover body with a second resonant cavity and a heat dissipation layer, the heat dissipation layer is provided with at least one protrusion. The second electrode layer covers a first area of the first surface of the piezoelectric layer, and the first area is the surface, close to one side of the bulk acoustic resonator cover body, of the piezoelectric layer; the first electrode layer covers a second area of the second surface of the piezoelectric layer, and the second area is the surface, close to one side of the bulk acoustic resonator carrier, of the piezoelectric layer; the orthographic projection of the second area on the bulk acoustic wave resonator carrier is at least partially overlapped with the orthographic projection of the first area on the bulk acoustic wave resonator carrier. The heat dissipation layer with a special structure is arranged at a proper position, so that the heat dissipation area can be increased, the heat dissipation efficiency is improved, and the problems of poor heat dissipation effect, poor performance and the like of the bulk acoustic wave resonator are solved.

The invention relates to the field of elevator door change gear detection, in particular to an elevator door change gear detection device, which solves the problem that a door change gear can be automatically replaced while the elevator door change gear detection device is suitable for simultaneous detection of various door change gears with different sizes, and comprises a cabinet body and a driving motor, and an output shaft is fixedly installed at the output end of the driving motor, a plurality of driving wheels are fixedly installed on the outer wall of the output shaft, and the driving wheels are installed at equal intervals. According to the device, the function of automatically adjusting the height of the change gear seat can be achieved, the device can be conveniently suitable for door change gears with different sizes and diameters, the device can conveniently detect the door change gears with different sizes at the same time, a replacement box of the device can achieve automatic replacement when the door change gears descend after detection is completed, and the detection efficiency is improved. Manual operation is not needed, and the detection efficiency of the device can be improved on the premise of ensuring safety.

The invention discloses a stabilizing device for steel plate welding, and relates to the technical field of welding, the stabilizing device for steel plate welding comprises a machine body, and further comprises a moving device, a fixing device and a butt joint device; wherein welding equipment is fixedly connected to the top of the machine body, a long groove is formed in the bottom of the inner wall of the machine body, the moving device comprises a storage rack, a welding plate, a vertical plate, a winding roller, a supporting rod, a steel cable, a rack, a rotating rod, an incomplete gear, a U-shaped plate, a rubber column, a handle, a long rod and wheels, and the wheels are movably connected to the inner side of the long groove; according to the stabilizing device for steel plate welding, when a third spring moves downwards, the third spring can drive a pressing plate to move downwards, at the moment, the pressing plate makes contact with a welding plate, when the pressing plate makes contact with the welding plate, the pressing plate can fix the welding plate, and the phenomenon that the welding plate deviates when welding equipment conducts welding can be effectively prevented.

The invention provides an edge sealing strip jet printing machine which comprises a support and a jet printing machine body, the support is provided with a conveying assembly, the conveying assembly comprises a first motor and a rotating roller, the support is provided with a protection assembly, the protection assembly comprises a box body and a gate plate, the support is provided with a stopping assembly, the stopping assembly comprises a pressing sleeve and a stopping roller, and the pressing sleeve and the stopping roller are arranged on the support. According to the edge sealing strip jet printing machine, an electric heating lamp and a fan can heat an edge sealing strip on the two sides of a blocking roller at first, then the edge sealing strip is cooled, the edge sealing strip is completely straightened in cooperation with the pulling force of the pulling roller, and therefore the edge sealing strip is completely straightened; the edge sealing strip spray printing device is simple in structure and convenient to use, unevenness such as wrinkles and curved surfaces on the edge sealing strip is eliminated, the edge sealing strip is effectively guaranteed to be completely flat, the quality of spray printing processing of the edge sealing strip is effectively guaranteed, ink volatile matter is prevented from drifting away, environment safety is guaranteed, and the edge sealing strip spray printing device is suitable for spray printing processing of the edge sealing strip.

The invention relates to the technical field of machine vision, in particular to an image segmentation method and system for liquid crystal screen display. The method comprises the following steps: acquiring basic data of the liquid crystal screen; performing screen response characteristic analysis according to the basic data of the liquid crystal screen to obtain screen response characteristic data; performing multi-scale image acquisition according to the basic data of the liquid crystal screen to generate multi-scale image data; performing characteristic classification on the liquid crystal display according to the screen response characteristic data, and performing edge compensation analysis on the multi-scale image data to obtain edge characteristic compensation data; acquiring real-time data of the touch screen; and performing touch interference identification analysis on the real-time data of the touch screen according to the edge feature compensation data to generate touch interference mask data. By analyzing the screen response characteristics and performing edge compensation analysis, the phenomenon of edge blurring caused by liquid crystal response time limitation is reduced, and the accuracy of edge detection is improved.

The invention discloses an indoor energy-saving and environment-friendly decoration device, and relates to the technical field of air purification, the indoor energy-saving and environment-friendly decoration device comprises an anti-leakage mechanism, and further comprises a dust pumping and filtering mechanism connected with the anti-leakage mechanism and used for pumping dust in a sealed space of the anti-leakage mechanism; the rotary dust extraction mechanism communicates with the dust extraction filtering mechanism and is used for extracting indoor dust in multiple directions; the waste dust raising mechanism is connected with the rotary dust pumping mechanism; the anti-leakage mechanism is installed to cover a locally renovated room door, dust generated during indoor construction is prevented from drifting to a living room and other bedrooms, the problem that cleanliness of other positions is affected by local renovation is solved, the self-cleaning mechanism is installed to clean dust of a structure in contact with the dust, and the service life of the structure is prolonged. And through self dust cleaning, the influence of dust adsorbed on the structure in the dismounting process on the indoor environment is avoided, pollution to indoor air is avoided, the cleanliness of indoor furniture is protected, and the purpose of low-dust local renovation is achieved.

The invention relates to the technical field of casting equipment, and discloses aviation metal part casting machining equipment which comprises a bottom frame, a water tank is arranged on the inner side of the bottom frame, a mounting top frame is fixedly connected to the top of the bottom frame, a heat dissipation mechanism is arranged on the inner side of the bottom frame, and a die casting mechanism is arranged in the mounting top frame. The die-casting mechanism is used for casting aviation metal parts, a protection mechanism is arranged at the top end of the interior of the bottom frame, heat dissipation can be conducted on water-cooled liquid through the heat dissipation mechanism, spraying dust falling is conducted on the die-casting mechanism through the protection mechanism, the heat dissipation mechanism comprises a fixing box, and an impeller is rotationally connected to the interior of the fixing box. The water-cooling liquid can be stirred through the heat dissipation mechanism, so that heat dissipation of the water-cooling liquid can be accelerated, heat dissipation of the water-cooling liquid can be accelerated through heat conduction and heat dissipation, heat dissipation of the water-cooling liquid can be accelerated through combination of heat conduction and heat dissipation, then temperature rise of the water-cooling liquid can be prevented, and the water-cooling effect is improved.

The invention discloses conveying equipment for graphene powder, and belongs to the technical field of graphene processing.The conveying equipment comprises a first limiting bearing metal plate, and a deformable conveying mechanism is arranged on the upper surface of the first limiting bearing metal plate; the deformable conveying mechanism comprises a deformable conveying assembly used for drying and conveying materials and a feeding pressurizing assembly used for supporting and feeding the deformable conveying assembly, the deformable conveying assembly is arranged at one end of the feeding pressurizing assembly, and the deformable conveying assembly comprises a second hollow material conveying pipe. A rotatable conveying barrel is arranged at the top of the second hollow material conveying pipe and is rotationally connected with the second hollow material conveying pipe; and through mutual cooperation of multiple structures, closed pipeline conveying is conducted on the graphene powder, the situation that the graphene powder drifts away in the conveying process is avoided, and the conveying effect of the conveying equipment on the graphene powder is better.

The floor grinding machine comprises a bottom plate, a protection frame is fixedly connected to the rear end of the top of the bottom plate, trundles are installed at the four corners of the bottom of the bottom plate, a push handle is installed on the protection frame, an opening is formed in the front portion of the bottom plate, a fixing frame is arranged at the position, above the opening, of the top of the bottom plate, and a grinding assembly is arranged on the inner side of the fixing frame. A cleaning assembly is arranged on the rear side of the polishing assembly, an equipment box is arranged at the position, on the inner side of the protection frame, of the top of the bottom plate, a dust collection assembly is arranged above the equipment box, a storage battery is arranged in the equipment box, and an inverter and a circuit board are arranged on the two sides of the storage battery correspondingly. The protection ring is matched with the dust collection assembly, so that dust on the inner side of the protection ring can be conveyed into the dust collection box in time, dust generated during grinding is effectively prevented from drifting into air, and the dust is prevented from polluting the working environment; and a second electric cylinder is matched with a cleaning strip to achieve automatic cleaning of the ground floor, labor is saved, and practicability is high.

The invention provides a textile fabric anti-ultraviolet performance detection device, and relates to the technical field of fabric detection, the textile fabric anti-ultraviolet performance detection device comprises an unwinding mechanism, a first traversing mechanism, a second traversing mechanism and an adjusting traversing mechanism. The unwinding mechanism is used for unwinding and winding the to-be-detected cloth; cloth horizontally penetrates through the first transverse penetrating mechanism and the second transverse penetrating mechanism. The adjusting and penetrating mechanism has a first state and a second state which can be switched, so that the cloth can horizontally extend in the first state, and a downward arc-shaped recess and an upward arc-shaped bulge are formed in the second state. The linear ultraviolet sensor detection mechanism is used for detecting the ultraviolet transmittance of the cloth in the horizontal state; and the arc ultraviolet sensor detection mechanism is used for detecting the ultraviolet transmittance of the arc part of the cloth. The method can accurately detect the ultraviolet permeability of the fabric in different forms, is suitable for quality evaluation of anti-ultraviolet functional textiles, and reduces the quality defects after the textile fabric leaves a factory.

The invention relates to the field of bag-type dust collectors, in particular to a bag-type dust collector for fiberboard production, which comprises a dust collector body, a top cover mounted at the top of the dust collector body, a dust collecting box mounted at the bottom of the dust collector body, a bag mounting plate mounted on the inner side of the dust collector body, and a dust collecting bag mounted at the bottom of the bag mounting plate. An air inlet pipe is mounted on the side face of the bottom end of the dust remover body, an air outlet pipe is mounted on the side face of the top cover, back-blowing dust removal mechanisms capable of moving up and down are mounted on the inner side and the outer side of the dust removal cloth bag, and a back-blowing lifting mechanism located on the inner side of the dust removal cloth bag is mounted at the bottom of the cloth bag mounting plate; a cloth bag bottom plate is installed at the bottom of the dust collection cloth bag, a bottom plate connecting rod is connected between the cloth bag bottom plate and the inner wall of the dust collector body, and a beating vibration mechanism located on the inner side of the dust collection cloth bag is installed at the top of the cloth bag bottom plate. While back-blowing dust removal is carried out, the primary layer can be repaired, and the situation that the primary layer is damaged and the filtering effect is affected is avoided.

The invention belongs to the field of tea production, and particularly relates to a conveying device for tea production and a conveying method thereof.The conveying device comprises a conveyor, a conveying box is arranged at the top of the conveyor, two supporting plates are symmetrically and fixedly connected to the bottom of the conveying box, and two guide plates are symmetrically and fixedly connected to the top of the conveying box; according to the conveying device for tea production and the conveying method of the conveying device, hot air is discharged from a plurality of first air outlets through the arranged first flow guide plate, the hot air makes better contact with tea leaves while the tea leaves are stirred through the stirring plate, the hot air is discharged from a plurality of second air outlets through the arranged second flow guide plate, and the tea leaves are better in contact with the tea leaves. Through wrapping of the gas gathering plate and the stirring plate, hot gas is prevented from floating upwards too fast, the contact time of the hot gas and the tea leaves is longer, when the stirred tea leaves slide to the included angle between the gas gathering plate and the stirring plate, the double faces of the tea leaves can be dried at the same time, and the drying effect is higher and more uniform.

The utility model discloses a valve pressure testing machine, and belongs to the technical field of pressure testing. A valve pressure testing machine comprises a fixing seat and a clamping circular plate, a screw motor is arranged at the bottom of an inner cavity of a fixing table, a clamping assembly is arranged on the inner wall of a moving frame and comprises a fixing plate, a fixing frame is arranged on the outer wall of the rear portion of a water tank, a fixing circular plate is arranged at the bottom of a metal mesh plate, and a clamping block is clamped in the fixing circular plate. The sealing rubber sleeve I and the sealing rubber sleeve II can be matched with the rubber circular pad and the rubber pad to form a double-sealing mode to seal the two ends of the valve, the sealing effect is prevented from being influenced by gas leakage, the valves of various sizes can be tested, the use flexibility of the valve is effectively improved, and due to the arrangement of the metal mesh plate, the sealing effect is improved. The injury to personnel caused by splashed fragments can be effectively prevented, and the use safety of the device is improved.

The utility model discloses magnetic powder spraying equipment for magnetic powder detection, which comprises a magnetic powder spraying table, a magnetic powder uniform dispersion adjusting mechanism is arranged on the front side of the magnetic powder spraying table, and the magnetic powder uniform dispersion adjusting mechanism comprises an outer support arm, a rotating lead screw, an adjusting sliding block, a sliding arm, a limiting plate and a clamping arm. In the process of spraying magnetic powder on a metal material, a motor controls a rotating lead screw to rotate, after the rotating lead screw rotates, two adjusting sliding blocks in threaded connection with the outer side of the rotating lead screw move on the surface of the magnetic powder spraying table through sliding arms and clamping arms, and in the moving process of the clamping arms, the magnetic powder is sprayed on the surface of the magnetic powder spraying table. The metal material located between the two clamping arms can pass to the lower side of the powder outlet spray head at a constant speed, when different positions of the metal material moving at the constant speed pass through the powder outlet spray head, magnetic powder can be evenly adsorbed to the surface of the metal material, and therefore the problem that at present, the magnetic powder is sprayed to different positions of the metal material and distributed unevenly is solved.

The invention discloses a full-automatic grooving machine for a PVC wood-plastic plate, and relates to the technical field of wood-plastic plate processing, the full-automatic grooving machine comprises a processing table, and the processing table is provided with a positioning module for positioning a plate body; a sealing cover is arranged on the machining table, a through groove is formed in the end, facing the machining table, of the sealing cover, a servo motor is arranged in the sealing cover, the output end of the servo motor is fixed to a cutting end, and the cutting end extends to the outer side of the sealing cover along the through groove; a dust collection module is further arranged in the sealing cover and used for conducting adsorption treatment on wood chips generated during cutting. The machining table is further provided with a driving module, and the driving module is used for driving the sealing cover to linearly move in the grooving direction. By arranging the sealing cover, wood chips generated during cutting can be isolated, the wood chips are prevented from being splashed into air, and the wood chips are collected in cooperation with the dust collection module.

The utility model provides a multi-layer board cutting device, belongs to the technical field of multi-layer board processing, and solves the problems that a multi-layer board is made of wood, chippings are generated in the cutting process, workers need to manually clean the chippings, and the working efficiency is reduced. The multilayer board cutting device comprises a mounting plate, a plurality of supporting columns are fixed to the lower end of the mounting plate, a support is fixed to the mounting plate, an electric telescopic rod is fixed to the support, the output shaft end of the electric telescopic rod is slidably connected with a supporting plate, a first motor is fixed to the supporting plate, a cutter is fixed to the output shaft end of the first motor, and a dust collecting box is fixed to the supporting plate. Dust collection assemblies are fixed to the front side and the rear side of the dust collection box, a draught fan is fixed to the dust collection box, a dustproof net is fixed between the dust collection box and the draught fan, and a push plate is slidably connected to the mounting plate. The multi-layer board cutting machine has the advantage that chips generated in the cutting process of a multi-layer board can be automatically cleaned.

The utility model relates to the technical field of feed processing, and discloses a dustproof crushing device for feed processing, which comprises a crushing tank, a cover plate is clamped on the top surface of the crushing tank, an A motor cabin is fixedly mounted on the top surface of the cover plate, and a linkage mechanism is fixedly mounted in the A motor cabin. And two sets of smashing rods are fixedly arranged on the bottom face of the linkage mechanism, a screen is fixedly installed on the inner wall of the smashing tank, and an anti-blocking mechanism is fixedly installed at the bottom of the inner wall of the smashing tank. According to the dustproof crushing equipment for feed processing, through the arrangement of the dustproof mechanism and the protection mechanism, when feed is put in, an elastic sleeve belt is sleeved with a raw material container, when feed raw materials are poured, a dustproof cloth bag prevents feed dust from drifting away, during discharging, a protection cloth bag is placed in a packaging bag, during charging, the protection cloth bag is lifted slowly, and the height difference during discharging is reduced; and therefore, the dustproof effect is achieved during feed feeding and discharging, and the situation that dust drifts away and influences the working environment and personnel health is avoided.

The utility model discloses an aerosol can filling machine which comprises a first supporting frame, hydraulic cylinders are arranged on the two sides of the upper end of the first supporting frame, the lower portions of the two hydraulic cylinders are fixedly connected with a mounting plate, a plurality of threaded rods which are arranged at equal intervals are inserted in a mounting groove, nuts are arranged at the upper ends of the threaded rods, and the threaded rods are connected with the first supporting frame. The lower end of the threaded rod is sleeved with an outer pipe, the lower portion of the outer pipe is fixedly connected with a filling head, a conveying assembly is arranged at the lower end of the first supporting frame, fixing bases are arranged on the two sides of the upper end of the conveying assembly, guide rods are inserted into the upper ends of the fixing bases, and pressing plates are arranged on the sides, close to the conveying assembly, of the guide rods. Two symmetrical push rods are arranged on the side, away from the guide rods, of the pressing plate. The filling machine is simple in structure and good in limiting effect, the phenomenon that an aerosol can deviates when moving is avoided, the distance between the filling heads is adjustable, the universality of the filling machine is improved, and meanwhile the production efficiency is effectively guaranteed.

The invention relates to the technical field of batteries, and discloses battery bipolar plate processing equipment which comprises a storage rack, a pressing mechanism and a positioning mechanism, and raw materials are wound on the storage rack; the pressing mechanism comprises a plurality of thinning assemblies and an embossing assembly, and the thinning assemblies and the embossing assembly are both provided with pressing gaps allowing the raw materials to penetrate through; the positioning mechanism is arranged on the side, close to the thinning assembly, of the embossing assembly. The positioning mechanism is arranged between the thinning assembly and the embossing assembly, so that the problem that plates deviate in the conveying process of existing rolling equipment is effectively solved; in the positioning mechanism, the pushing piece and the guide part can adjust and fix the position of the raw material, so that the raw material is ensured to be in an accurate position before entering the embossing assembly, and the offset phenomenon is avoided, thereby improving the processing precision and the production stability of the bipolar plate, ensuring that the runner embossing of each bipolar plate is consistent, and optimizing and improving the overall performance of the fuel cell.

The utility model discloses a spinning production device which comprises a machine frame, the machine frame comprises at least four supporting columns, a box body is arranged on the machine frame, a discharging port is formed in the bottom of the box body, and the discharging port is connected with a spinneret plate. A flow guide plate is arranged below the box body, and baffles extend upwards from the edges of the two opposite sides; the size of the flow guide plate is larger than that of the spinneret plate, the flow guide plate is obliquely arranged, and the upwards-inclined end of the flow guide plate is movably connected with the rack. The spinning box has the advantages that when varieties and raw materials of the spinning box are replaced, melting needs to be carried out, a solution pipeline is completely discharged, and a guide plate is arranged to prevent the solution from flowing into other production devices in the solution discharging process to cause pollution to the production environment; 2, through cooperation of the rotating shaft and the connecting rod, the flow guide plate is rotated out when flow guide is needed, and the inclination angle is changed by adjusting the connecting hole position of the connecting rod and the supporting rod; and 3, when the space is narrow and the flow guide plate cannot rotate, the flow guide plate is movably connected with the supporting column through the hook and is pulled out during use.

The movable dust removal device for workshop production comprises a moving mechanism, a recognition mechanism and a dust removal mechanism, the recognition mechanism is fixedly connected to the top of the moving mechanism, the dust removal mechanism is fixedly connected to the top of the recognition mechanism, and the moving mechanism comprises a transmission unit and a control unit. The control unit is fixedly connected to the top of the transmission unit, the dust removal mechanism comprises an air inlet unit and an exhaust unit, the air inlet unit is fixedly connected to the top of the recognition mechanism, and the exhaust unit is fixedly connected to the top of the recognition mechanism. According to the system, the programmable control module is arranged as a core, centralized control over roller driving, a steering motor, radar navigation and a suction system is achieved, the speed and direction of rollers are automatically adjusted, obstacle avoidance and path planning are achieved, and the effect of automatic cruise dust removal in a workshop is achieved; and a blind area possibly existing in a traditional single suction mode is avoided.

The utility model provides a papermaking felt flat net splicer, and belongs to the technical field of papermaking felt flat net processing. Comprising a machining table, supporting frames are fixed to the two sides of the middle of the upper portion of the machining table, an upper top frame is fixed to the top ends of the two supporting frames, and a connector adjusting mechanism is installed in the middle of the upper top frame. By arranging the deviation preventing mechanism, a worker places two to-be-jointed papermaking felt flat nets on the two sides of the upper portion of the machining table in advance in an opposite mode, so that the joint of two broken ends of the two to-be-jointed papermaking felt flat nets is right located on the middle line of the table, and then the worker can start a second motor to enable a rotating rod and second bevel gears fixed to the two sides of the middle of the rotating rod to rotate; in the process, two groups of bevel gears II are in meshed transmission to enable two corresponding bevel gears I and a transmission screw rod II in the middle to rotate, and at the moment, two corresponding screw rod sliding sleeves II acting with the two transmission screw rods II can drive fixed edge guide frames on the two sides to be matched with guide grooves to vertically descend; the anti-deflection pressing plates are fixedly arranged on the two sides of the fixed edge guide frame.

The utility model relates to the technical field of burr removing devices, in particular to a forging burr removing device with a dust falling function. The burr removing device with the dust falling function for forging machining aims at solving the technical problems that in the prior art, waste chips are easily sucked in by workers, harm to the body is large, and the waste chips drift around and are difficult to clean. According to the technical scheme, the burr removing device with the dust falling function for forging machining comprises a dustproof machining box; the device further comprises a filter screen, a water tank, a lifting control assembly, a dustproof baffle, a feeding and discharging control assembly, a connecting plate, a lifting rotating assembly, a grinding piece, a dust falling spraying pipe and a vacuum suction cup. The dust falling fence device is arranged on the outer side of the machining table, waste chips are prevented from drifting around, the dust falling effect is achieved by being used in cooperation with the spraying mechanism, the situation that the waste chips float and are sucked by workers is avoided, harm to the body is reduced, the surrounding environment cannot be polluted, and the waste chips are more convenient to clean.

The utility model discloses an ash removal device for hollow brick processing, relates to the field of hollow brick processing, and solves the problems that an existing ash removal device adopts a brush for cleaning, hollow bricks with different lengths are difficult to clean by the brush, cleaning omission easily exists in the cleaning process, the ash removal work is difficult to complete in the actual use process, and the cleaning efficiency is high. The device comprises a bottom plate, a conveying assembly is fixedly installed at the top of the bottom plate, and a cleaning assembly is fixedly installed at the top of the bottom plate; and the cleaning assembly comprises an air compressor and a hose, the air compressor is fixedly installed at the top of the bottom plate, and the hose is fixedly connected with the output end of the air compressor. According to the hollow brick cleaning device, hollow bricks can be cleaned, so that the surfaces of the hollow bricks are cleaner, the hollow bricks can be cleaned repeatedly, the situation that residues exist is prevented, the surfaces of the hollow bricks are cleaner, harm of dust to respiratory tracts or eyes of workers is reduced, and the using effect is improved accordingly.

The invention relates to the field of unmanned underwater vehicles, in particular to an unmanned underwater vehicle load rapid installation device which comprises a rack, a guide rail, a pushing assembly and a pushing head assembly, the rack is used for placing a load, the pushing assembly is arranged on the guide rail, the pushing assembly is in sliding connection with the guide rail, and the pushing head assembly is arranged on the rack. The pushing head assembly is detachably arranged at one end of the pushing assembly, and the pushing assembly drives the pushing head assembly to do reciprocating motion on the guide rail so as to push the load. The pushing assembly is in sliding connection with the guide rail, so that the pushing head assembly reciprocates on the guide rail, the detachable pushing head assembly can adapt to loads of different sizes and shapes, diversified installation requirements are met, the preparation time of the underwater vehicle can be shortened, the installation efficiency and safety are improved, and the application range of the underwater vehicle is widened. And the method also has good adaptability and expansibility.

The utility model belongs to the technical field of optical equipment, and particularly provides a lens bonding device which comprises a pitching adjusting assembly used for adjusting the pitching angle of a lens and a height adjusting assembly used for adjusting the height of the lens. The adjusting end of the pitching adjusting assembly is provided with a lens reference surface; one side of the lens datum plane is provided with a pressing assembly used for pressing the lens on the lens datum plane; the lens clamping area of the height adjusting assembly is located between the lens datum plane and the pressing assembly. According to the lens bonding device provided by the utility model, the lens height adjusting component is used for controlling the thickness of the glue layer, and the glue dispensing standardization can be realized by matching with the glue dispenser, so that the thickness of the glue layer meets the requirement, and the lens bonding device serves as a buffer layer in an extreme environment to prevent the lens base from deforming and fracturing the lens. In the curing process, angle drift of the lens is prevented through pre-compression, the precision of a finished product is improved, the lens bonding process standard is improved, and follow-up laser automatic production is achieved.

The invention relates to the technical field of water conservancy projects, in particular to a J-shaped side groove spillway structure with a backflow type energy dissipation structure, which comprises an arc-shaped side groove overflow weir, an arc-shaped side groove bottom plate, an arc-shaped side groove side wall, a 7-shaped energy dissipation top plate, a trapezoidal energy dissipation pier, an arc-shaped side groove upstream retaining wall, a discharge chute front adjusting section and a discharge chute section, the upstream end of the discharge chute front adjusting section is tangent to the arc-shaped side chute, the 7-shaped energy dissipation top plate is located on the top of the side chute side wall, the J-shaped arrangement can well adapt to steep bank slope terrains, the overflow front edge length is increased while excavation of a high slope is avoided, and the discharge amount of the side chute spillway is increased. The brand-new 7-shaped energy dissipation top plate backflow type energy dissipation structure can effectively reduce the depth of the side groove and reduce the height of the side wall of the side groove on the backing side, energy is counteracted after returned water flow and water flow discharged by the arc-shaped side groove overflow weir face each other, the effects of dissipating energy and adjusting the flow state of water flow out of the groove are achieved, bias flow of the water flow out of the groove is avoided, and the service life of the water flow is prolonged. And water flow can enter the discharge chute more smoothly.

The utility model relates to the technical field of rotary laser carving machines, in particular to a vacuum coating rotary laser carving mechanism convenient to operate, which comprises a laser carving machine body, the surface of the laser carving machine body is rotatably connected with a display screen, the inner wall of the laser carving machine body is fixedly connected with a motor, and the output end of the motor is fixedly connected with a rotary disc. A field lens is installed on the surface of the laser carving machine body, a clamping device is arranged on the surface of the rotating disc and comprises an L-shaped plate, the L-shaped plate is fixedly connected with the rotating disc, a rectangular hole is formed in the surface of the rotating disc, a sliding plate is slidably connected to a short arm of the L-shaped plate, and a V-shaped clamp is fixedly connected to the surface of the sliding plate. The V-shaped clamp is slidably connected with the inner wall of the rectangular hole, and the surface of the sliding plate is in threaded connection with a screw rod. According to the laser engraving machine, the problem that most existing laser engraving machines do not fix an object, and consequently the object is prone to deviating in the rotating process is solved.

The utility model relates to the technical field of glass production, and discloses an injection molding glass trimming tool which comprises a base, a grid plate used for supporting glass and a clamping plate used for fixing the glass are arranged on the base, an installation box body capable of moving in the direction of the base is arranged above the base, two polishing rollers are arranged below the installation box body, and the two polishing rollers are arranged on the base. Water flow is introduced into the base and matched with the baffles, so that part of dust generated by polishing falls into the water, the dust is prevented from drifting away in the air, a good working environment is provided for production, follow-up cleaning is facilitated, the production efficiency is improved, and the production cost is reduced. Glass is polished and trimmed by controlling the polishing rollers to rotate and move at the same time, the polishing efficiency is improved, glass of different sizes is conveniently polished by adjusting the distance between the two polishing rollers, the two polishing rollers can be attached to the side edges of the glass in cooperation with the fixing mechanism, and the polishing quality is guaranteed.

The utility model relates to a novel pneumatic vibrator which comprises a base and an inner sleeve, an air inlet hole and an air outlet hole are formed in the two end faces of the inner sleeve respectively, a fixing block is coaxially installed in the inner sleeve, a center shaft is coaxially installed between the end, away from the air inlet hole, of the fixing block and the inner sleeve, and a spiral strip is further installed on the fixing block in a sleeved mode. A spiral channel communicated with the air inlet hole can be formed between the spiral strip and the inner sleeve, and the center shaft is sleeved with an impacting ring capable of impacting the inner sleeve. A machine shell coaxial with the inner sleeve is installed on the base, one end of the machine shell is open and sleeves the inner sleeve, the other end of the machine shell is close to the exhaust hole and is coaxially provided with an exhaust port, the exhaust hole and the exhaust port are arranged in a staggered mode, and a gap exists between the end, provided with the exhaust port, of the machine shell and the inner sleeve to form a buffer chamber. When the dust removal device is used, the situation that discharged high-pressure gas blows dust can be reduced, so that the working environment is improved.