29results about How to "Less scratches" patented technology

The invention belongs to the technical field of modification of ultra-high molecular weight polyethylene, and particularly relates to special resin for a modified ultra-high molecular weight polyethylene lining oil pipe and a preparation method of the special resin. The special resin for the modified ultra-high molecular weight polyethylene lining oil pipe is prepared from the following raw materials in parts by mass: 65 to 80 parts of ultra-high molecular weight polyethylene, 5 to 10 parts of high-density polyethylene, 8 to 12 parts of modified polyaryletherketone, 4 to 7 parts of modified hyperbranched polyester, 0.3 to 2 parts of silicone master batch and 0.1 to 0.5 part of antioxidant. The lining oil pipe prepared from the special resin for the modified ultra-high molecular weight polyethylene lining oil pipe has excellent wear resistance and high temperature resistance, and also has good mechanical properties such as tensile strength and impact strength.

The utility model relates to the technical field of steel belt slitting processing, in particular to a steel belt slitting waste collecting device which comprises a bottom plate and an arranging device, a servo motor is fixedly connected to the upper surface of the bottom plate, a box is fixedly connected to the upper surface of the bottom plate, a recycling barrel is fixedly connected to one end of the box, and a wire inlet is formed in the surface of the recycling barrel. The driving end of the servo motor penetrates through the box and the recycling barrel and is fixedly connected with a rolling rod, the arranging device is arranged on the surface of the recycling barrel and comprises a guide rail, the guide rail is fixedly connected with the recycling barrel, a clamping groove is formed in the surface of the guide rail, a sliding sleeve is slidably connected to the surface of the guide rail, and a support is fixedly connected to the surface of the sliding sleeve. A blocking frame is fixedly connected to the surface of the support, a guiding part of the blocking frame is composed of two rotating pulleys, the pulleys of the blocking frame are symmetrically arranged up and down, and the sliding sleeve further comprises a driving mechanism used for driving the sliding sleeve to move in a reciprocating mode. And the rolling effect is optimized, follow-up carrying of the steel bars is facilitated, and deformation and scraping caused by disordered winding of the steel bars are reduced.

The utility model discloses code detecting and positioning equipment with an adjustable fixing structure, which comprises a code detecting and positioning device, a protective shell is fixedly mounted at the bottom of the code detecting and positioning device, a chuck structure is slidably mounted at the bottom of the protective shell, a binding device is detachably mounted at the bottom of the chuck structure, and the binding device is detachably mounted at the bottom of the protective shell. The utility model relates to the technical field of code detection positioning. According to the code detecting and positioning equipment with the adjustable fixing structure, the purposes that the code detecting and positioning equipment can be conveniently and rapidly disassembled by a worker and can be firmly and conveniently carried in special terrains such as jungles and mountainous regions and in the strenuous exercise process, meanwhile, the code detecting and positioning equipment can be protected against collision and buffering in the special environment, and the service life of the code detecting and positioning equipment is prolonged are achieved.

The large granary corrugated plate flexible automatic production line comprises a feeding table, a machining table and a stacking table, the top of the feeding table is provided with a pneumatic tensioning discharging machine and an uncoiling leveling machine, the top of the feeding table is provided with a cutting device, the top of the machining table is provided with a rolling forming machine, and the top of the machining table is provided with a conveying device. A punching device is arranged between the machining table and the stacking table, a conveyor is mounted at the top of the stacking table, a first mounting table is fixedly connected to the front face of the stacking table, and a first mechanical arm is mounted at the top of the first mounting table. According to the corrugated plate machining device, in the corrugated plate machining process, a full-automatic mode is adopted, plates do not need to be transferred during machining, the machining efficiency is effectively improved, and the expenditure of manpower and material resources is saved.

The utility model relates to the technical field of left rear mudguard supports, in particular to a left rear mudguard support assembly which comprises a top beam, a bottom beam arranged below the top beam, a protection side beam and an installation side beam arranged between the top beam and the bottom beam respectively, and a plurality of high-position air inlet support installation holes formed in the top of the top beam. A plurality of left fender support base mounting holes are formed in the two sides of the top beam, left protection front fixing support assembly mounting holes are formed in one end of the top of the protection side beam and the top beam, a connecting plate is arranged on one side of the protection side beam, an extension plate is arranged at one end of the bottom of the bottom beam, and a plurality of wiring harness mounting via holes are formed in the extension plate. Strength and durability are improved, a vehicle body is protected against erosion of the external environment, the service life of the vehicle body is prolonged, splashing of muddy water, gravel, snow and other substances is effectively prevented, damage to rear wheels and other parts of the vehicle body is reduced, safety is high, installation and replacement are easy, compatibility is good, and maintenance cost is reduced.

The invention discloses a gas-liquid mixing type clothes surface stain self-cleaning device and a method thereof, and relates to the field of clothes cleaning. A gas-liquid mixing type clothes surface stain self-cleaning device comprises a water storage shell, a working cavity is formed in the lower end of the interior of the water storage shell, the gas-liquid mixing type clothes surface stain self-cleaning device further comprises ultrasonic transducers, the ultrasonic transducers are fixedly connected to the interior of the working cavity circumferentially at equal intervals, and the input ends of the ultrasonic transducers are electrically connected with the output end of an ultrasonic generator through cables; by means of the cavitation effect, stains such as oil stains and sweat stains are efficiently broken and stripped, stubborn stains on necklines and cuffs, juice stains and coffee stains and the like are well cleaned, strong rubbing is replaced with flexible liquid disturbance, an interception filter plate is matched, clothes fiber pulling and hardware scraping are reduced, the use amount of a detergent is reduced, clothes materials are protected, and the service life is prolonged.

The utility model discloses a clamp for an unstacking robot, and relates to the technical field of robot clamps. The clamp for the unstacking robot comprises a clamp fixing base, a clamping jaw fixing assembly and a clamping assembly, the clamping jaw fixing assembly comprises two connecting columns, and the two connecting columns are fixedly connected to the lower end of the clamp fixing base; a clamping jaw seat is arranged below the clamp fixing seat, two connecting rods are rotationally connected to the ends, close to the connecting columns, of the clamping jaw seat, and the two connecting rods are rotationally connected with the corresponding connecting columns correspondingly, a clamping jaw is detached through tools such as an electric wrench, the clamping jaw is conveniently detached through the hexagonal prism shape of the fixing block, and the detaching efficiency of the clamping jaw is improved; according to the bagged material clamping device, clamping instability or failure caused by serious damage of the clamping jaws is avoided, the safety of the device is improved, the risk of industrial accidents is reduced, the number of the clamping jaws is increased or decreased according to the specifications of different bagged materials, the bagged materials of different specifications can be clamped conveniently, and the practicability of the device is improved.

The invention relates to the technical field of conductivity testers, in particular to a rapid detection device for the content of harmful ions in sand for roads, bridges and tunnels and a use method.The rapid detection device comprises a detector used for measuring the conductivity of a solution and a detection barrel used for containing the solution to be detected, and a partition plate is fixed to the bottom of the inner side of the detection barrel; a partition plate is arranged in the detection barrel, two symmetrically distributed electrodes are arranged on the partition plate, the electrodes are two-electrode type conductivity electrodes, a stirring mechanism used for stirring a solution to be detected and eliminating vortexes at the same time is arranged on the inner side of the detection barrel, and a liquid discharging assembly used for discharging the measured solution is arranged at the bottom of the partition plate. Vortex generated in the stirring process can be eliminated, deviation of a conductivity detection result when the to-be-detected solution is stirred is avoided, the accuracy of the solution detection result is improved, in addition, the situation that stirring equipment makes contact with an electrode can be avoided, and the condition that the electrode is damaged due to the fact that particles in the solution scrape the electrode is reduced.

This utility model relates to the field of aluminum strip processing technology and discloses an aluminum strip feeding device with an anti-scratch buffer mechanism. The device includes a hopper containing several aluminum strips. Several guide plates are staggered within the hopper, arranged at an angle. The aluminum strips can slide between the guide plates and are arranged along them. A first conveyor belt is positioned below the hopper, and a second conveyor belt is positioned in the same direction as the first conveyor belt. A gap exists between the second and first conveyor belts, and a return belt is positioned below the gap, moving in the opposite direction to the first conveyor belt. This device solves the problems of aluminum strips scraping against each other in the hopper and the inability to guarantee the feeding direction. The guide plates reduce scratches on the aluminum strips, and the dual conveyor belt structure enables selection of the feeding direction, facilitating subsequent processing and improving the quality of the finished product.

The application belongs to the technical field of additive manufacturing, and particularly relates to a metal 3D printing fine wire feeding device and an additive manufacturing equipment comprising the same. The fine wire feeding device comprises a shell assembly, a metal wire guiding assembly and a metal wire driving assembly. The shell assembly surrounds the metal wire driving assembly. The metal wire guiding assembly is installed in the shell assembly along the longitudinal direction. The metal wire penetrates through the metal wire guiding assembly and is fed by the metal wire driving assembly. The metal wire driving assembly comprises a driving wheel assembly, a driven wheel assembly and an anti-rolling assembly. The driving wheel assembly and the driven wheel assembly jointly constitute a clamping and conveying mechanism for the metal wire. The anti-rolling assembly comprises two side wall supporting discs which are symmetrically arranged on both sides of the metal wire and used for limiting the rolling of the metal wire in the horizontal plane. The problems of poor stability of fine metal wire conveying and difficulty in guaranteeing the quality of finished parts are solved.

The utility model discloses a kind of transport equipment of medicine box finished product packaging, belong to transport equipment technical field, including sequentially arranged conveying mechanism, stacking mechanism and film sealing mechanism;The stacking mechanism includes guide plate and the shaft plate slidingly connected with the guide plate by guide rail, the shaft plate is connected with spacer plate by clamping, and the second telescopic link is arranged below the shaft plate.The guide plate is arranged at the both sides of the spacer plate, and the guide rail is longitudinally penetrated on the guide plate.The spacer plate is provided with the ball that is conducive to packaging movement, and the side of the spacer plate away from the shaft plate is provided as slope face.The utility model solves the problem of low stacking efficiency and poor process synergy in the prior art by the above structure, integrated design, self-adapting stacking, improve production efficiency.

The utility model belongs to the technical field of lithium battery production, and particularly relates to lithium battery processing equipment which comprises a workbench. A pair of fixing frames are symmetrically arranged and fixedly connected to the side wall of the workbench. One side wall of the pair of fixing frames is fixedly connected with a servo motor. The output end of the servo motor is fixedly connected with a screw rod; the lead screw penetrates through the side wall of the fixing frame, and the other end of the lead screw is rotationally connected with the fixing frame on the other side of the workbench. A pair of guide rods are fixedly connected to the middle parts of the pair of fixing frames; the middle part of the screw rod is in threaded connection with a sliding seat; the sliding seat is in sliding fit with the pair of guide rods; a first electric cylinder is fixedly connected to the bottom of the sliding seat; the output end of the first electric cylinder is fixedly connected with an air guide block; the top of the sliding seat is fixedly connected with a piston cylinder; by means of the structure, the lithium battery cell can be held through adsorption, then the lithium battery cell is driven to be transferred, and damage to the cell when the cell is clamped is reduced.

This invention discloses a high-performance automated composite material laying and transfer system, belonging to the field of composite material processing equipment technology. The system is equipped with a layup forming module, a material transfer module, a pre-pressing orientation adjustment module, a molding and curing module, and a finished product receiving module along the material flow direction. The pre-pressing orientation adjustment module includes a pre-arching compensation alignment platform, which limits the conveying position of the elastic bearing base plate through positioning and limiting components, and uses lateral clamping components in conjunction with pre-arching guide components to complete horizontal centering and oblique guidance, causing the elastic bearing base plate to form an out-of-plane elastic pre-arch. During mold closing, the molding and curing module flattens the elastic bearing base plate, causing it to generate in-plane compensation displacement to offset or reduce the curing shrinkage of the composite preform. The system can also adjust the conveying height according to the material specifications and divert the material to the corresponding press station, realizing continuous operation of layup, transfer, orientation adjustment, curing, and receiving, reducing the risk of product dimensional deviation, warping, and interlayer misalignment.

The application discloses a kind of for producing aluminium buckle plate's aggregate stacking device, comprising: the supporting platform, the righting member for making aluminium buckle plate keep standing state is provided on the supporting platform, the push-pull piece for assisting the multiple groups aluminium buckle plate is taken out is provided on the supporting platform, the insert piece for making aluminium buckle plate from lying state to standing state is provided on the supporting platform;The automatic turnover feeding structure of the insert piece is directly connected with the lying output state of upstream production line, and the posture conversion of aluminium buckle plate from lying to standing is automatically completed and pushed to the stacking station, effectively reduces the manual operation intensity and feeding alignment error, improves the continuous operation efficiency of aggregate stacking;By single inclined plane bottom plate cooperation lateral righting structure, avoid plate bidirectional extrusion deformation, guarantee stacking regularity;By whole pile translation discharge structure cooperation face contact type abutment support, it can be completed in work station Packing and smooth discharge, guarantee the appearance forming quality of aluminium buckle plate.

The present application relates to the technical field of surgical knives, and discloses a trabeculectomy knife with adjustable knife distance, which comprises a knife handle, a knife rod connected with the knife handle, and a knife head connected at the end of the knife rod, wherein the knife head is boat-shaped, has a knife tip and two side edges, the rear sections of the two side edges are connected and the front ends thereof meet at the knife tip, the knife head has a concave cavity, the concave cavity is provided with a chevron-shaped gap for separating the knife tip, a pair of parallel first sliding grooves are arranged in the side wall of the concave cavity, an arc-shaped plate is slidably arranged in the first sliding grooves, and the two parallel edges of the arc-shaped plate are respectively clamped in the two first sliding grooves. The trabeculectomy knife can realize mode switching of the knife head and width adjustment of the side edges by single-handed holding, the big thumb can accurately control power transmission by rotating the knob, the friction fit of the threaded transmission and the wedge structure ensures smooth movement without slipping, and the operation difficulty is reduced without the need for additional instrument assistance or double-handed operation.

The present application relates to the technical field of pole piece drying equipment, and in particular to a coating pole piece drying box and drying method, wherein the coating pole piece drying box comprises a box body, a transmission device and a hot air drying device are arranged in the box body, and a magnetic drying device is also arranged in the box body, and the magnetic drying device comprises a plurality of magnetic drying groups installed in the box body, and the plurality of magnetic drying groups are laid and extended along the transmission direction of the transmission device, and the magnetic drying group comprises a plurality of magnetic drying units rotatably connected to the box body, and the plurality of magnetic drying units are laid and extended along the transmission direction perpendicular to the transmission device, and the magnetic drying unit comprises a permanent magnet. When the magnetic drying unit approaches the pole piece and rotates, the substrate of the pole piece will cut the magnetic flux lines emitted by the permanent magnet inside the magnetic drying unit, so that a certain current is generated inside the substrate for heating, and the hot air drying device is cooperated to realize the synchronous heating of the inside and outside of the slurry.

The invention relates to the technical field of hydraulic engineering smashing, and discloses an impurity smashing and flood drainage device for hydraulic engineering, which comprises a cylinder body, the cylinder body is fixedly mounted on a frame body, a feeding pipe is fixedly connected to the outer side of the cylinder body, a limiting assembly is located in the feeding pipe, and a discharging pipe is fixedly connected to one end, away from the feeding pipe, of the cylinder body. The end, away from the barrel, of the discharging pipe is fixedly connected with the connecting piece, an elastic plate is fixedly connected into the barrel, contact between the smashing assembly and materials can be softer through elastic deformation of the elastic plate, direct friction and abrasion between the smashing assembly and the materials are reduced, and a protruding strip is fixedly connected to the end, away from the inner wall of the barrel, of the elastic plate. According to the sundry smashing and flood drainage equipment for the water conservancy project, the rotating shaft drives the outer side fixing plate to rotate, so that the inclined grooves in the outer side of the fixing plate are meshed with the convex strips on the elastic plates, sundries are smashed, and the situation that the sundries directly enter the flood drainage equipment, and consequently equipment working faults are caused is avoided.

This utility model discloses a sugarcane feeding device designed to solve the problem of uneven feeding in sugarcane processing. The device includes a base frame, a feeding cylinder, a power unit, and a receiving plate. The feeding cylinder has multiple rows of parallel, evenly distributed lifting teeth on its surface, which can efficiently pick up sugarcane and reduce stem damage. The receiving plate is obliquely hinged to the base frame, and its tilt angle can be adjusted. The power unit uses an electromagnetic speed-regulating motor to drive the feeding cylinder to rotate at a uniform speed, and the feeding frequency is controlled by adjusting the speed. After the sugarcane is gathered by the receiving plate, the lifting teeth pass through the appropriate gaps on the plate to pick up the material, and the material is discharged to the conveyor belt as the cylinder rotates to the other side. Side baffles on the conveyor belt ensure stable material transport. Through a coordinated design of quantitative picking, frequency release, adjustable angle, and controllable speed, the device achieves precise control of the sugarcane feeding amount, speed, and interval, improving the processing stability of subsequent equipment, reducing equipment load fluctuations and raw material loss. It has advantages such as simple structure, flexible adjustment, and strong applicability.

This utility model relates to a spring feeding machine and its wire feeding mechanism, including a frame, a sliding frame, a feeding box, and a discharging component. A support plate is fixed to the upper part of the frame, and the sliding frame is slidably mounted on the support plate. A motor A is fixed to the lower part of the support plate, with its shaft passing through the support plate and a disc fixed on the shaft. A protruding post A is eccentrically mounted on the disc. A protruding post B is also provided at the bottom of the sliding frame. A connecting rod A is provided between protruding posts A and B, with both ends of the connecting rod rotatably connected to protruding posts A and B, respectively. The feeding box is fixed to the sliding frame, and the discharging component is located at the front end of the sliding frame, with its rear end connected to the front end of the feeding box. A mounting plate is fixed to the frame, with a through hole in the middle of the mounting plate. Motor A drives the sliding frame to move via connecting rod A, thereby causing the discharging component to extend and retract within the through hole. The wire feeding mechanism of this utility model features smoother movement, more precise control, and synchronous movement of the feeding box and the discharging component, reducing damage and improving product quality.

The utility model discloses an environmental protection type zinc oxide calcining kiln, and the utility model relates to zinc oxide calcining technical field, the utility model discloses a bottom plate is installed with calcining kiln on the bottom plate, the calcining kiln all is provided with the observation port around, install the mounting plate on any one observation port, install glass in any one mounting plate, install two symmetrical slide rails on any one mounting plate, the one end of any one slide rail first all is provided with sliding slot, install fixed plate between two slide rails, the utility model discloses one is to the cleaning structure directly installed in glass outer end, need not operating personnel to carry the tool personally, reduced the operation burden, and can clean in time, avoid the time of tool use and delay, two can automatically extrude cleaning agent when cleaning, ensure that cleaning agent evenly covers glass surface, promote cleaning effect, guarantee observation visual field clear, be convenient for operating personnel accurate judgement calcining state in the kiln.

The utility model discloses a shared electric motor car storage and transportation system, including device body, the device body contains the pedal, the pedal one end is connected the frame and is equipped with the seat and handle on the pedal top, the frame top is equipped with the car, the car one end is provided with the mounting seat and is equipped with the auxiliary board and the limiting seat in the car, the auxiliary board below is equipped with the connecting buckle, the connecting buckle is fixed with the pivot, the pivot rotation is installed in the mounting seat, the pivot one end is connected the worm wheel, the worm wheel one side engages the worm, the limiting seat is equipped with the baffle and is equipped with the clamping slot in the limiting seat, can according to the need of user to the device angle adjustment, the user is convenient to the device and is loaded, reduces manual operation intensity, also can carry out the protection to electric motor car, reduces the collision and the scratch, reduces the vehicle physical damage risk, reduces the repair and the replacement expenditure, prevents the battery extrusion, avoids the spare part to loosen or lose.

This invention discloses a split-type drilling tool, comprising a tool body circumferential surface, a shank, a cutting tool section, and a tool body circumferential surface. The cutting tool section, at its end away from the shank, has a tool body end face, a peripheral groove, and a central groove. The peripheral groove includes a peripheral insert positioning groove and a peripheral chip-receiving groove, and the central groove includes a central insert positioning groove and a central chip-receiving groove. The tool body circumferential surface has a peripheral chip-removing groove and a central chip-removing groove, connected to the central chip-receiving groove. The peripheral chip-receiving groove includes a peripheral chip-removing groove sidewall and a peripheral chip-removing groove bottom surface. The peripheral chip-removing groove sidewall has a groove, which is arc-shaped with a radius of R1. The maximum cutting width of the peripheral insert is L, satisfying: 0.6L ≥ R1 ≥ 0.3L. The maximum distance between the groove and the peripheral insert on the side adjacent to the tool body circumferential surface is L1, satisfying: 1.8L ≥ L1 ≥ 1.2L. This split-type drilling tool improves chip removal performance and versatility, meeting the processing requirements of different processing parameters and materials, and extending its service life.

The present invention relates to the technical field of composite film preparation, and in particular to an anti-oxidation transparent high-barrier composite film, a preparation device and a method. The composite film comprises a first outer film, a middle film and a second outer film which are arranged in sequence, wherein the thickness of the first outer film is 25 μm to 150 μm; the thickness of the middle film is 50 μm to 100 μm; the thickness of the second outer film is 50 μm to 150 μm; when the first outer film, the middle film and the second outer film are extruded from a co-extrusion die head of a casting machine, ultraviolet rays are irradiated on both sides of the middle film, and the wavelength of the ultraviolet rays is 350 nm to 380 nm, and the light intensity is 15 mw / cm 2 Up to 25mw / cm 2 The irradiation time is 2s to 8s. The anti-oxidation transparent high-barrier composite film prepared by the present invention has not only high mechanical strength but also high light transmittance.

The utility model discloses a tray for long valve plate processing, including positioning mechanism and tray main part, and positioning mechanism is by first locating seat, first connecting plate, second locating seat, and first connecting plate forms U -shaped groove with first locating seat and second locating seat are connected, and at least two first locating pins are fixed to first locating seat and set up upwards along the inside and outside direction, and the outside of first locating seat is fixed to set up upwards first limit baffle with, and at least two second locating pins are fixed to second locating seat and set up upwards along the inside and outside direction, and the outside of second locating seat is fixed to set up upwards second limit baffle with, and tray main part includes tray and support leg, and two rows of clamps are set up symmetrically upwards in the both sides of tray respectively, and support leg sets up in the bottom both sides of tray respectively, and the bottom both sides of tray still are provided with first locating hole with the position of first locating pin corresponds and second locating hole with the position of second locating pin corresponds, and tray main part is positioned and places in U -shaped groove.

This utility model relates to the field of welding slag removal technology and discloses a device for removing welding slag from the bottom slide rail of an automobile seat. The device includes a main shell with a movable opening slot at the top and a welding slag collection bin at the bottom. An arc-shaped groove plate is fixedly connected to the inner wall of the main shell. A movable slide rod is fixedly connected to the inner wall of the main shell. A cylinder slider is movably connected to the outer side wall of the movable slide rod. A rotary motor is fixedly connected to the top of the cylinder slider, and a grinding steel wire wheel is fixedly connected to the top of the rotary motor. This utility model, by incorporating a slide rod and a cylinder slider, provides a more compact structure compared to other types of cylinders, which helps save installation space and enables efficient pneumatic control even in limited spaces. The installation and disassembly process of the sliding cylinder is relatively simple, reducing installation costs and time and improving work efficiency.

The utility model relates to a PVC (polyvinyl chloride) transparent line pipe sizing sleeve which is characterized by comprising a main body and a cooling device sleeved on the main body, a through hole for a pipe to pass through is formed in the center of the main body, and the main body comprises a cooling section connected with a cooling device and an adsorption section connected with the cooling section; a plurality of adsorption hole groups are uniformly formed in the circumference of the outer surface of the adsorption section, and each adsorption hole group comprises a plurality of adsorption holes which are spirally distributed along the outer surface of the adsorption section. A PVC transparent pipe enters the main body from the cooling section to be primarily cooled and then enters the adsorption section to be fully cooled, a plurality of adsorption hole groups are uniformly formed in the circumference of the adsorption section, and each adsorption hole group comprises a plurality of adsorption holes spirally distributed along the outer surface of the adsorption section, so that the adsorption holes are distributed all over the cooling section in a spiral arrangement manner; the number of times of frequent contact between the same position of the pipe surface and the adsorption holes in the same straight line is reduced, friction and scraping are reduced, the probability of line marks on the pipe surface is reduced, and production quality is improved.

The application provides a hull cutting device for karting ship production, and relates to the technical field of cutting devices.The hull cutting device comprises a base, a supporting seat and a cutting structure are arranged on the top of the base, the cutting structure comprises a supporting piece arranged on the top of the base, the supporting piece is connected with a connecting arm, a main protective cover is connected to the connecting arm, a motor is arranged on one side of the main protective cover, an output shaft of the motor extends into the main protective cover and is provided with a saw blade, a third threaded groove is arranged on the side of the main protective cover, a third hand screw bolt is threadedly connected to the inner wall of the third threaded groove, an auxiliary protective cover is arranged on the outer surface of the third hand screw bolt, and the auxiliary protective cover can rotate around the third hand screw bolt and cover the exposed area of the saw blade.The auxiliary protective cover and the main protective cover can protect the saw blade, reduce the collision and scraping of the saw blade, and prolong the service life of the saw blade.

The utility model provides photovoltaic power generation equipment with a photovoltaic power generation panel cleaning function, which belongs to the technical field of photovoltaic power generation equipment, and comprises a side frame, the side frame is connected onto a photovoltaic power generation panel, and the side end of the side frame is rotatably connected with a polished rod; the directional wheel is fixedly connected to the circumferential surface of the polished rod, and the directional wheel is matched with the photovoltaic power generation panel; the connecting rod is rotationally connected to the side end of the side frame, one side end of the connecting rod is fixedly connected with a first chain wheel, the cleaning brush is matched with the photovoltaic power generation panel, through rotation of the rotating roller on the side frame and rolling or sliding of the cleaning sleeve, cleaning force can be distributed more evenly, and the cleaning efficiency of the surface of the photovoltaic power generation panel is improved; and the manual cleaning time and labor cost are reduced.

The utility model relates to the field of forming die, concretely to a bilateral rotary bending die mechanism with reset, including upper die assembly and lower die assembly and rotary bending mechanism, rotary bending mechanism sets up between upper die assembly and lower die assembly, and rotary bending mechanism includes punch, forming swing block, dowel, material removal die, punch is provided with two and symmetrically sets up, punch top connects upper die assembly, and punch outside is provided with material removal die, and material removal die bottom fixedly connects lower die assembly, and punch inside corresponds and is provided with two forming swing blocks, and forming swing block connects lower die assembly through dowel. The utility model cleverly uses the punch forced reset lower die forming die, reduces the situation that spring reset is not in place when high -speed stamping, and rotary bending can reduce the scratch of forming part to product surface, promotes the surface quality of product, and this rotary bending mechanism is simple and compact, is applicable to the product that the slider cannot form in smaller space, and has reduced the die cost.