226results about How to "Improve production environment" patented technology

The invention relates to the technical field of metal surface treatment, and discloses sheet metal part spraying and plastic spraying equipment and a technological method.The sheet metal part spraying and plastic spraying equipment comprises a spraying chamber and a conveying mechanism, the spraying chamber is arranged in the middle of the conveying mechanism, and a material distributing plate is installed at the top of the spraying chamber; two spraying mechanisms are arranged on the side, close to the material distributing plate, of the interior of the spraying chamber, a plurality of evenly-distributed spraying guns are arranged in the two spraying mechanisms, an air pressure tank and a conveying pipe are installed on the side, close to the material distributing plate, of each spraying gun, and a pump body is installed on the side, away from the spraying guns, of each conveying pipe; and a paint storage tank is arranged on the rear side of the spraying chamber. The position and the angle of the spraying gun are accurately controlled, and the automatic adjusting device is utilized, so that the spraying gun can be dynamically adjusted according to the surface shape and the size of the sheet metal part, and all corners of a workpiece are uniformly and comprehensively covered with paint.

The invention provides a composite material winding machine and a winding method, and belongs to the technical field of dry winding, the composite material winding machine comprises an underframe, a clamping mechanism mounted on the underframe, a walking trolley mounted on the underframe, and an angle control mechanism and a tension control mechanism mounted on the walking trolley; the winding angle of the composite material strip is strictly controlled through the angle control mechanism, the tension of the composite material strip is adjusted through the tension control mechanism, it is guaranteed that the tension and the wall thickness are uniform when the composite material strip is wound, and it is guaranteed that a product obtained after winding forming is stable in performance and attractive in appearance.

The invention discloses a water turbine runner welding device which comprises a transfer positioning assembly and a welding assembly. The transfer positioning assembly is composed of an indexing rotary disc A and an indexing rotary disc B. Two sets of evenly-distributed positioning chucks A are arranged on the indexing rotary disc A and used for fixing a positioning ring. And the indexing turntable B is provided with three groups of uniformly distributed positioning chucks B for fixing the runner main body or the positioning table, and the positioning chucks B are used for uniformly arranging and positioning the blades. The welding assembly is matched with the indexing rotary table A and the indexing rotary table B and comprises a rotating ring A and a rotating ring B which are provided with a laser welding gun A and a laser welding gun B correspondingly. The laser welding gun A is responsible for welding the connecting position of the positioning ring and the blade, and the laser welding gun B is responsible for welding the connecting position of the rotating wheel body and the blade. The welding precision and efficiency are remarkably improved, risks caused by manual operation are reduced, meanwhile, the production environment is improved, and the requirement for modern water turbine manufacturing is fully met. High-quality welding can be achieved, the production process is optimized, and the overall production efficiency is improved.

The invention relates to a novel disassembling method and equipment for a metal section steel stack bundle, and belongs to the technical field of section steel stack bundle disassembling in the hot galvanizing industry. According to the technical scheme, the grouping and spacing equipment comprises a multi-section chain bed (230), a grouping device (250), a jacking device (240) and a spacing changing device (260), the multi-section chain bed is close to a stack bundle conveying roller way (140) and an unpacking robot (210), the center line of the multi-section chain bed is perpendicular to the center line of the stack bundle conveying roller way, and the jacking device, the grouping device and the spacing changing device are all arranged below the multi-section chain bed. The automatic section steel assembly line has the positive effects that batched section steel stack bundles can be disassembled layer by layer one by one, then grouping and fixed-distance treatment are automatically conducted according to the required number, the defects of a production mode in the prior art are overcome, the work of disassembling heavy section steel and feeding according to requirements can be completed, automatic production is completely achieved, and the production efficiency is improved; the whole process does not need personnel participation, and the workshop production environment is improved.

The invention discloses an integrally-formed multifunctional shoe sole and a preparation method thereof, and belongs to the field of shoe products, the method comprises the following steps: carrying out primary ejection on a first insole material and a second insole material by adopting double-color ejection equipment to obtain an insole parison; in the first insole material, an ethylene-vinyl acetate copolymer, an ethylene-butyl acrylate copolymer, random polyolefin, a styrene-butadiene-styrene block copolymer and an ethylene-butyl acrylate-maleic anhydride copolymer are used as matrix resin; carrying out molding and mold pressing on the insole blank and the laminated sheet rubber, so that the insole blank is foamed and crosslinked at a high temperature, and meanwhile, the sheet rubber is vulcanized and crosslinked at the same temperature; the coated raw rubber sheet is a mixed rubber sheet mainly taking rare earth butadiene rubber, natural rubber, polyacrylate rubber and brominated butyl rubber as main bodies. According to the invention, double-color sole foaming cross-linking and raw rubber vulcanization are integrally combined and molded, the process is simplified, the cost is reduced, and the production environment is improved.

The utility model provides a carrier tape feeder material film recovery mechanism, which comprises a guide module, a material film recovery module and a material film recovery module, and the film collecting module is arranged below the guide module and is used for dragging and recycling the material film. According to the recovery mechanism, the trend of the material film is accurately changed through the guide module, the problem that the material film is disorderly drooped and randomly stacked after a traditional carrier tape feeder is stripped is effectively solved, and the material film can be orderly pulled and recovered; due to the design of the triangular reversing mechanism, stable transition of a material film in the steering process is guaranteed, deviation of the material film in the conveying process can be prevented through matched use of a film pressing rod and a limiting block, and the operation stability of the whole system is improved; through the design of the roller driven by the motor and the pressing assembly, it is ensured that the material film is clamped by uniform and adjustable pressure from the upper side and the lower side in the recycling process, continuous and stable traction is facilitated, the pressure can be automatically adjusted according to the thickness change of the material film, and therefore the compatibility and the processing efficiency of the material films of different specifications are improved.

The invention discloses an axle housing casting device of a dumper, which belongs to the field of axle housing casting and comprises a base, a gantry support for supporting is fixedly mounted on the upper surface of the base, a casting part for casting an axle housing is arranged in the middle of the inside of the gantry support, and a moving plate is arranged above the casting part. The movable plate is used for changing the state of a casting part, a cooling part used for cooling is fixedly installed on the upper surface of the base, the casting part comprises a center mold, mold cover plates are arranged on the upper side and the lower side of the center mold, and a plurality of evenly-distributed guide rods are fixedly installed on the upper side and the lower side of the center mold. According to the device, the casting part is arranged, so that cooling and casting work can be carried out at the same time, automatic switching of casting and cooling is achieved, the working efficiency of the device is improved, the operation time is shortened, the production process is optimized, and then the yield is improved.

The utility model discloses a lithium ion battery pyrolysis carbonization system, and belongs to the technical field of waste lithium ion battery recovery. The lithium ion battery pyrolysis carbonization system comprises an electromagnetic heating pyrolysis device, a secondary combustion chamber and a waste gas treatment device which are connected in sequence. The technical problems that a conventional lithium ion battery pyrolysis carbonization process is large in waste gas generation amount and poor in treatment effect are solved or at least partially solved.

Surface treatment equipment before injection molding part coating comprises an equipment mounting frame (1), a working platform (4) is arranged at the bottom of the equipment mounting frame (1), a positioning tire film structure (2) is mounted on the working platform (4), a six-axis mechanical arm (3) is mounted at the top of the equipment mounting frame (1), and a plasma flame gun (5) is mounted at the tail end of the six-axis mechanical arm (3). The device is simple in structure, and can be used for improving the surface tension of a complex angle surface, so that the surface paint adhesive force is stronger, a coating paint film is thicker and better in quality, a bulge at a parting line part of an injection molding part can be treated during coating, the coating appearance is smooth, and the consumption of a large amount of grinding tool cost and labor cost is avoided.

The utility model belongs to the technical field of mycelium stimulation equipment, and particularly relates to an edible mushroom mycelium stimulation device. Comprising a conveyor and a support, guide rods are installed on the two sides of the conveyor, the conveyor penetrates through the interior of the support, at least one air cylinder is installed above the support, the output ends of the air cylinders are fixedly connected with a driving box, a plurality of output ends of the driving box are connected with mycelium stimulation knives through flanges, and material suction heads and water spray nozzles are detachably installed on the outer walls of the mycelium stimulation knives. The material suction head is connected with a collecting tank through a material suction pipe, a gate valve is installed at the output end of the collecting tank, a vacuum valve and an air inlet valve are installed above the collecting tank, and a feeding valve is installed on the material suction pipe. Only the cap removing station and the fungus scratching station are needed, the occupied area is small, the equipment investment is low, and the production environment is improved.

The invention relates to the technical field of coking, in particular to a closed coke field material stacking and taking system and method. The stacking belt conveyor is arranged on the composite foundation support platform in the X direction, and the rack type discharging car is arranged on an X-direction support rail of the stacking belt conveyor. The bridge type crown block coke distributor is arranged between the composite foundation support platform and the single-row foundation support in the Y direction, the bridge type crown block coke distributor comprises a material distribution device and a crown block, the material distribution device is arranged on a Y-direction track on the crown block, and the crown block is arranged on an X-direction walking track fixedly connected to the composite foundation support platform and the single-row foundation support; the semi-gate type scraper reclaimer is arranged on an X-direction track fixedly connected to the ground of the coke field and the composite foundation support platform in the Y direction, and the reclaiming belt conveyor is arranged on the ground of the coke field in the X direction and located below a discharge port of the semi-gate type scraper reclaimer. And surface stacking material taking can be achieved in the coke field, the volume of the effectively utilized space is large, the coke storage amount in unit area is high, and the coke storage cost per ton is low.

The utility model relates to the technical field of resin sand, and discloses a resin sand block crushing device which comprises a crusher, an extrusion crushing mechanism is fixedly installed in an inner cavity of the crusher, and the extrusion crushing mechanism comprises an extrusion box, an extrusion motor, an extrusion rotating shaft, a rotating disc, a connecting rod, a driving rod, a connecting frame, a first extrusion plate and a second extrusion plate. According to the resin sand block crushing device, a resin block is poured into the feeding hopper and enters the crushing machine through the feeding hopper, the resin block firstly passes through the extrusion crushing mechanism, an extrusion motor rotates through an extrusion rotating shaft, and then the resin block is extruded into the crushing machine; and the extrusion rotating shaft drives the connecting rod to rotate through the rotating disc, the connecting rod drives the connecting frame to move through the driving rod, the connecting frame drives the first extrusion plate to do reciprocating motion, and the resin sand blocks are extruded into small fragments.

The utility model provides an alloy grading screening device, which belongs to the technical field of alloy screening and comprises a screening box, and a feed inlet and an exhaust inlet are arranged at the top of the screening box. A screen plate assembly and a screen mesh assembly which are obliquely arranged are installed in the screening box. The oblique low end of the screen plate assembly is connected with a screen plate discharging table. The inclined low end of the screen assembly is connected with the screen discharging table. A material collecting cavity is formed by the screen assembly and the bottom of the screening box, and one side of the material collecting cavity is connected with a material collecting and discharging table; a material pushing mechanism is arranged in the material collecting cavity and comprises a reciprocating screw rod and a guide rod which are parallel to the bottom of the screening box, the reciprocating screw rod and the guide rod are sleeved with a push plate, and the bottom of the push plate abuts against the bottom of the screening box; a servo motor is arranged outside the side wall of the screening box, and the output end of the servo motor is connected with the reciprocating lead screw. When the device runs, materials are in a relatively sealed environment, raised dust is not easy to generate, the working environment is improved, the screening and grading effects of the materials are improved through the design of the multi-stage screen, and the waste rate of products is reduced.

The invention relates to the technical field of plastic forming, and discloses a plastic leftover material forming process of a layered compaction structure, which comprises the following steps: S1, raw material pretreatment: selecting a new plastic material meeting performance requirements, drying, mixing with pretreated recycled material particles in proportion, uniformly stirring, and feeding into a raw material storage tank for later use; s2, melting and injection molding: feeding the mixed raw materials into an injection molding machine, heating in different areas through a charging barrel, and stirring and melting into a melt through a screw rod; the die set is arranged, through an immediate leftover material separation and recovery system, the cut leftover materials can be rapidly recycled, soil and water pollution caused by leftover material accumulation is avoided, meanwhile, waste of plastic raw materials is reduced, and the development concepts of green manufacturing and circular economy are met. Due to the sealing protection design of the die set, pollution caused by melt leakage is avoided, and diffusion of dust and harmful gas is reduced through the sealing structure of the movable groove.

The utility model discloses an automatic fuse machine, which relates to the technical field of fuse machines and comprises a support frame and a mounting platform arranged on the support frame, an opening is arranged on the mounting platform and serves as a processing station, and a workpiece lifting device is arranged below the processing station; a hot melting jig and a motion adjusting mechanism connected with the hot melting jig are arranged above the mounting platform, a vertical guide rail is arranged on the supporting rack, and the motion adjusting mechanism is in sliding connection with the vertical guide rail; a cooling pipe is arranged on one side of the hot melting jig; a dust collecting pipe is arranged on one side of the supporting rack, one end of the dust collecting pipe is connected with the dust collector, and the other end is close to the hot melting jig; full-automatic machining in the hot melting process can be achieved, and the machining efficiency is effectively improved; and meanwhile, the dust collecting pipe and the cooling pipe are integrally arranged and can be connected with a dust collector, machining pollution is reduced, the hot melting quality of workpieces is improved, and adhesion is avoided.

The utility model relates to the technical field of recycling devices, and discloses a cutting fluid purifying and recycling device which comprises a cabinet, and a filtering assembly, a vacuum box, a diaphragm pump, an oil collector and a bubble generator are installed in the cabinet. A liquid inlet is formed in the top of the vacuum box, a liquid outlet is formed in the side wall of the vacuum box, the bottom end of the filtering assembly is communicated with the liquid inlet of the vacuum box through a hose, a liquid inlet pipe and a liquid outlet pipe are arranged on the side wall of the oil collector, the liquid inlet end of the diaphragm pump is communicated with the liquid outlet of the vacuum box through a hose, and the liquid outlet end of the diaphragm pump is communicated with the liquid inlet pipe of the oil collector through a hose. The output end of the bubble generator penetrates into the oil collector from the bottom end of the oil collector through a connecting assembly; through cooperation of the filter assembly, the oil collector and the bubble generator, cutting fluid can be separated from cutting oil and scraps, impurities in the cutting fluid are removed, the service life of the cutting fluid is longer, the stink condition of the cutting fluid is improved, the field production environment is improved, and meanwhile the service life of the cutting fluid is prolonged.

The utility model relates to a rack of a single-head embroidery machine. Relates to the technical field of embroidery machines. The device specifically comprises a mounting base, a connected shuttle box body fixedly mounted on the mounting base, a supporting suspension arm fixedly mounted on the connected shuttle box body and a machine head detachably connected with the supporting suspension arm, the machine head is used for mounting a needle bar frame, and the connected shuttle box body is used for guiding knitting threads to be collected; and the section range of the mounting base in the horizontal direction is larger than that of the connected shuttle box body, the supporting suspension arm and the machine head in the horizontal direction. The section range of the mounting base in the horizontal direction is larger than the section range of the connected shuttle box body, the supporting suspension arm and the machine head in the horizontal direction, so that the contact area of the rack and a workbench is increased, the gravity center of the rack is lowered, the stability of the rack structure is improved, and the service life of the rack is prolonged. Shaking and noise generated during high-speed operation of the embroidery machine are reduced, the quality of embroidery is guaranteed, and a good production environment is provided.

The present invention belongs to a mixed, graded and layer-by-layer filtered composite grinder processing fluid treatment device, including a composite grinder fluid tank, characterized in that a filter paper box is installed on the upper left rear part of the fluid tank, the filter paper is transported to the top of the waste paper box by a TCCT50L paper belt filter conveyor, a TCCF‑150 magnetic separator is installed on the front side of the TCCT50L paper belt filter conveyor, a plurality of pumps are installed on the rear end of the middle and right side of the fluid tank, and filter liquid tank one, filter liquid tank two and filter liquid tank three are installed in front of the pump from left to right; drain pipe four is connected to the composite grinder fluid tank. The present invention has high filtering accuracy for grinder processing fluid, is beneficial to improving the quality of workpieces, prolongs the service life of the filter, saves lubricating fluid, reduces processing costs, and improves the production environment.

The utility model relates to the technical field of corrugated paper production, and particularly discloses a paper production workshop high-altitude anti-water-drop structure which comprises flow baffles and an exhaust pipe, the flow baffles are arranged below a ceiling of a workshop at intervals, the exhaust pipe is arranged at one ends of the flow baffles, one end of the exhaust pipe faces heat production equipment in the workshop, and the other end of the exhaust pipe faces the heat production equipment in the workshop. The other end of the exhaust pipe faces the upper portion of the flow baffle so that hot air in the workshop can flow into the position between the flow baffle and the ceiling through the exhaust pipe. The flow baffle and the exhaust pipe are arranged at the high altitude of the workshop, hot air in the workshop is guided to the position above the flow baffle, condensate water generated after heat exchange of the hot air and cold air can fall onto the flow baffle, water drops are prevented from directly dripping onto the ground, equipment and raw materials of the workshop, and the production environment can be improved.

The present invention discloses a glue powder coating device and glue powder coating method for water drill grinding and polishing, and belongs to the technical field of water drill processing. The device includes a frame, a support on the frame that can move up and down, a lifting structure between the support and the frame, a powder tray on the support, a powder scraping structure on the support, and a servo advance and retreat structure between the support and the powder tray; the powder scraping structure is fixed on the support, and the powder tray can reciprocate back and forth on the support; when applying powder, the servo advance and retreat structure drives the powder tray to step backward from the starting position, and after each stepping movement, the lifting structure drives the powder tray to reciprocate up and down once to apply powder, and at this time the powder scraping structure is in a scraping state; after a predetermined number of powder applications, the servo advance and retreat structure drives the powder tray to move forward to the starting position, and the powder scraping structure moves from the front of the powder tray to the back of the powder tray, and at this time the powder scraping structure is in a powder pushing state. This patent adopts a method in which the powder scraping structure does not move and the powder tray moves, which can reduce dust in the powder application process and reduce the amount of glue powder used.

The invention relates to the technical field of semi-autogenous mills, in particular to a semi-autogenous mill feeding system which comprises a feeding belt, a belt blanking hopper, a V-shaped receiving hopper, a square rubber flexible connector, a feeding trolley, a horn-shaped flow guide bushing, a rubber sealing ring and two spiral spray heads used for spraying ore feeding water. The V-shaped material receiving hopper is located in the belt blanking hopper and located on a material falling route, the square rubber flexible connector is connected between a discharging port of the belt blanking hopper and a feeding port of the feeding trolley, and the joint of the square rubber flexible connector and the feeding trolley is fixed through a clamp. And the trumpet-shaped flow guide bushing is arranged at the feed port of the semi-autogenous mill and is connected with the discharge port of the feeding trolley. The feeding system of the semi-autogenous mill can operate efficiently and stably, the fault downtime is obviously shortened, the production efficiency is improved, meanwhile, flying dust generated during blanking can be effectively restrained, water leakage and material leakage are prevented, and the production environment is greatly improved.

The utility model discloses a heat recovery system for rapeseed steaming and frying hot air, which is characterized in that a hot air outlet of a horizontal roller softening pot is connected with a top hot side inlet of an air-water heat exchanger through a fan, and a lower overflow port of the air-water heat exchanger is connected with an overflow pipe; a cold side outlet of the air-water heat exchanger is connected with a side wall inlet of the vacuum flash tank; a bottom outlet of the vacuum flash tank is connected with a cold side inlet of the heat exchanger through a forced circulation pump; a top outlet of the vacuum flash tank is connected with an inlet of the steam compressor, an outlet of the steam compressor is connected with a suction port of the steam jet pump, a main inlet of the steam jet pump is connected with the live steam pipe, an outlet of the steam jet pump is connected with a tube pass inlet of the steam superheater, and a shell pass inlet of the steam superheater is connected with the live steam pipe. A tube pass outlet of the steam superheater is connected with a direct steam layer steam inlet of the evapo-separated machine; a spraying opening is formed in the top of the air-water heat exchanger. The system can efficiently recover high-quality waste heat generated in the process of extracting grease from rapeseeds, and the environment is improved.

An automatic cleaning device for water-based coatings includes a mixing tank (1), a drive motor (2), a base box (3), a feed inlet (4), a water inlet (5), a hollow mixing shaft (6), mixing blades with spray nozzles (7), spray nozzles (7a), a sound insulation and heat preservation layer (8), an annular air duct (9), an air inlet pipe (10), a tank wall spray ring (11), a nozzle (11a), a discharge port (12), a liquid discharge port (13), a water pump (14), a cleaning agent tank (15), a liquid level sensor (16), a control system (17), and a base (18). This device utilizes a rotating mixing shaft and blades to effectively carry the cleaning solution through high-pressure rotary spraying, reducing the consumption of cleaning solvents and water, thus saving resources. The cleaning is thorough, ensuring no residue remains on the tank, mixing shaft, and blades, greatly reducing the risk of cross-contamination between different batches or colors of coatings.

The utility model relates to a cold bed waste heat recovery technical field especially relates to a kind of steel rolling cold bed composite heat recovery system. Steel rolling cold bed composite heat recovery system includes heat exchange structure and drive structure. Heat exchange structure includes heat preservation cover, heat exchange component and air door component, heat preservation cover cover is located in the high temperature area of cold bed, heat preservation cover has the installation cavity towards high temperature area, heat exchange component is set in installation cavity, and heat exchange component inside flows through heat exchange medium;At least one opening is provided on heat preservation cover, an air door component is provided at one opening, and the air door component is used to partially cover or entirely cover opening;Drive structure includes support and driving part, support includes stand and rotating frame, heat exchange structure is rotationally arranged on stand by rotating frame, driving part drives rotating frame to rotate relative to stand, to drive heat exchange structure to be located at maintenance position or heat recovery position;Heat recovery position has multiple, heat exchange structure is located at different heat recovery position, and the spacing of heat exchange structure and cold bed in vertical direction is different.

The utility model discloses oil-removing powder production equipment, which comprises a stirring device, the stirring device comprises a base and a horizontal stirring barrel mounted on the base, a spiral stirring blade is arranged in the horizontal stirring barrel, and a feed port and a discharge port are respectively arranged at two ends of the horizontal stirring barrel; the feeding device is arranged at the feeding end of the horizontal stirring barrel, the feeding device comprises an inclined feeding groove, and the discharging end of the feeding groove is connected with a feeding port of the horizontal stirring barrel; the discharging device is arranged at the discharging end of the horizontal stirring barrel and comprises a dustproof box and a vibrator arranged at the bottom of the dustproof box, the bottom of the dustproof box is obliquely arranged in the powder discharging direction, the feeding end of the dustproof box is connected with a discharging opening of the horizontal stirring barrel, and a movable door is arranged at the discharging end of the dustproof box.

The invention provides fungus bag production and inoculation treatment integrated equipment using liquid strains. The fungus bag production and inoculation treatment integrated equipment comprises a material storage bin, a crusher, sterilization equipment, a spiral feeder, a bagging machine, multi-station inoculation automation equipment, a collection frame, a strain shaking table and a lifting conveying belt. A discharging port of the lifting conveying belt is in butt joint with the upper portion of a feeding bin of the crusher, a stirring bin of the crusher is in butt joint with the lower end of a plane conveying belt assembly of the sterilization equipment, the higher end of the plane conveying belt assembly is in butt joint with the upper portion of a feeding port of the spiral feeder, and a discharging port of the spiral feeder is in butt joint with a feeding port of the bagging machine. A discharging port of the bagging machine is in butt joint with the front end of the circular groove conveying belt assembly, and the tail end of the circular groove conveying belt assembly is in butt joint with the collecting frame. The method is high in efficiency, and farmers can be helped to quickly produce fungus bags to accelerate production; automation is high, and labor cost is reduced; integration is high, production steps are reduced, and development of the edible mushroom industry is promoted.

The utility model relates to the technical field of granulators, and discloses a dry type granulator capable of preventing dust from escaping, which comprises a machine body, the machine body is hollow inside, the upper surface of the machine body is fixedly connected with a feed hopper communicated with the inside of the machine body, and the right side surface of the machine body is fixedly connected with a discharge frame communicated with the inside of the machine body. A first connecting groove communicated with the interior of the machine body is formed in the upper surface of the machine body, a dust collecting box is fixedly connected to the upper surface of the machine body, the interior of the dust collecting box is hollow, the dust collecting box is communicated with the interior of the first connecting groove, and a granulating mechanism is arranged on the machine body. On one hand, most of powder and chippings can be collected and recycled, the powder and the chippings cannot escape in the recycling process, then the environmental protection performance of the granulator is improved, the practicability of the granulator is improved, on the other hand, the situation that the powder and the chippings escape to pollute the working environment in the discharging process of the granulator can be avoided, and the production cost is reduced. And thus, the body health of workers is ensured.

This utility model discloses a tool grinding machine robotic arm loading and unloading device, including a grinding machine, a vertical plate fixedly connected to the upper side of the grinding machine, a grinding component disposed on one side of the vertical plate, and a support block fixedly connected to the upper side of the grinding machine and outside the grinding component. A sliding groove is formed on the upper side of the support block, and a protective frame is slidably fitted onto the inner wall of the sliding groove. This utility model, by incorporating a loading front arm, a limiting rod, a force-generating toothed plate, and a linkage component, allows the rotation of the loading front arm during loading to open the protective frame without affecting the movement of the clamping component. After loading is complete, the rotation of the loading rear arm during unloading again controls the seal between the protective frame and the sealing plate, achieving a sealed grinding space. This reduces dust generated during grinding, maintains a good working environment, reduces damage to the loading front and rear arms from debris, and improves the service life of the structure and the production environment.

The present invention discloses a belt conveyor reciprocating dust removal device, belonging to the technical field of dust removal. The dust removal broom of the dust removal device is hinged with a connecting rod, the connecting rod is hinged with a rotating connecting rod, the driving wheel group of the driving mechanism includes a driving wheel and a driving wheel, the driving wheel obtains power by contacting with the conveyor belt of the belt conveyor, the driving wheel and the driving wheel are arranged in parallel and fixedly connected by a connecting shaft, the driving wheel and the driven wheel are transmitted by a transmission belt, the central axis of the connecting shaft and the driven wheel are respectively movably connected with the adjusting rod, one end of the central axis of the driven wheel is connected with the rotating connecting rod, the other end of the central axis of the driven wheel is connected with a support frame through a first bearing, and the support frame is fixed on the ground. The power source of the dust removal device of the present invention comes from the friction between the driving wheel and the conveyor belt of the belt conveyor to obtain power, the circumferential motion is converted into the reciprocating motion of the dust removal broom through a crank connecting rod mechanism, and the dust on both sides of the conveyor belt of the belt conveyor is collected and conveniently processed.

The utility model discloses a dustproof cap fixing structure and a loudspeaker, the dustproof cap fixing structure comprises a voice coil, a voice cone and a dustproof cap, and the voice cone is connected with the outer side wall of the voice coil; the dustproof cap is buckled on the top of the voice coil. According to the utility model, the dustproof cap is buckled and fixed on the voice coil, adhesive is not needed between the dustproof cap and the voice coil, the connection is firm and reliable, various experimental requirements of the current loudspeaker are completely met, cooperative operation of multiple persons is not needed during installation, the production efficiency is obviously improved, particularly, the use of the adhesive is reduced, the production environment can be improved, and the production cost is reduced. And human health and personal and property safety are guaranteed.