24results about How to "Adjust flatness" patented technology

The invention provides a polishing head, a polishing system and a control method of the polishing system. The polishing head comprises a retaining ring and a back film, the retaining ring and the back film are both installed on the body, the retaining ring surrounds the periphery of the back film, the polishing head further comprises a shape compensation plate, the shape compensation plate is installed on the bottom face of the back film and comprises a plurality of control point positions, and a wafer fixing cavity is formed between the shape compensation plate and the retaining ring. The shape compensation plate is used for being electrically connected with a deformation controller, and the deformation controller can control at least one control point to stimulate the shape compensation plate, so that the shape compensation plate deforms at the local part where the control point is located. The polishing system is provided with the polishing head, the invention further provides a working method of the polishing system, the polishing head can ensure the flatness of the wafer during polishing, the polishing thickness of the wafer is uniform, and the product yield is improved.

The utility model relates to the technical field of prestress tension, and discloses a prestress tension trolley which comprises a trolley body with wheels, and four corners of the trolley body are respectively provided with a hydraulic oil cylinder extending downwards. The transverse tilt angle sensor, the longitudinal tilt angle sensor and the first PLC are arranged on the vehicle body, and the hydraulic oil cylinder, the transverse tilt angle sensor and the longitudinal tilt angle sensor are electrically connected with the first PLC. The moving assembly is arranged on the vehicle body and can move transversely and longitudinally, and the tensioning jack is arranged on the moving assembly. The levelness of the tensioning trolley is detected through the transverse tilt angle sensor and the longitudinal tilt angle sensor, and then the first PLC is matched with the four hydraulic oil cylinders to ascend and descend respectively, so that the flatness of the tensioning trolley body is rapidly and accurately adjusted, and inclination of the tensioning angle of a steel strand is avoided.

The invention discloses an anti-static floor, and particularly relates to the field of floors, the anti-static floor comprises a supporting frame and a floor body located in the middle of the supporting frame, and the corners of the periphery of the bottom of the supporting frame are each provided with a supporting mechanism which is supported by a plurality of supporting frames in a suspended mode and can adjust the height of the supporting frames; and fixing mechanisms for fixing the floor body and leading out current are arranged in the middle of the periphery of the supporting frame. Firstly, through cooperation of the arranged conductive net and the metal frame, the overall strength of the floor base body can be improved through the conductive net when the floor body is poured and manufactured, static electricity generated on the surface of the panel can be transmitted to the metal frame through the conductive net through a conductive rod, and meanwhile, mounting clamping blocks of the fixing mechanisms are attached to the metal frame; the current can be conducted to the supporting frame and grounded through the multiple conductive belts and the conductive plates, a complete electrostatic discharge path is achieved, the anti-static effect is improved, the anti-static performance is prevented from being reduced, and the anti-static effect is made to be more durable.

The invention relates to the technical field of air floating structure manufacturing, in particular to a dynamic inclination compensation double-shaft air floating platform which comprises a substrate platform used for placing and positioning a glass substrate, a micro-motion device arranged at the bottom end of the substrate platform, and an X-axis dynamic compensation adjusting device and a Y-axis dynamic compensation adjusting device which are used for adjusting the flatness of an air floating mechanism, a plurality of air floating pads are densely distributed between the contact surfaces of the Y-axis dynamic compensation adjusting device and the micro-motion device and between the Y-axis dynamic compensation adjusting device and the X-axis dynamic compensation adjusting device, and the air floating pads are mutually spliced through fixing screws to form an air floating guide rail; a pressure equalizing groove is formed in the top end of each air floating cushion, and air pressure sensors used for detecting air film pressure changes are arranged in the pressure equalizing grooves and distributed at the four corners and the center of the air floating cushions at equal intervals. The double-shaft air floating platform can automatically carry out dynamic inclination compensation, the pitching inclination and the rolling inclination of the air floating platform are reduced, the motion precision of the air floating platform is improved, and therefore the machining precision of the exposure machine is improved.

The utility model discloses drying equipment for printing processing of valve bags, and relates to the technical field of drying equipment. The drying device comprises a mounting plate, a drying assembly is fixedly mounted at the top end of the mounting plate, a supporting assembly is fixedly mounted at the bottom end of the mounting plate, a lifting assembly is fixedly mounted on one side of the supporting assembly, a transmission assembly is fixedly mounted on one side of the supporting assembly, and one side of the transmission assembly is fixedly connected with one side of the lifting assembly. And universal wheels are fixedly mounted at the bottom ends of the lifting assemblies. The lifting assembly is rotated to drive the universal wheels fixedly installed at the bottom end of the lifting assembly to move upwards, then the lifting assembly can be matched with the transmission assembly to drive the supporting assembly to move downwards and make contact with the ground, shaking of the supporting assembly is avoided, the flatness of the installation plate can be adjusted by adjusting the different lifting assemblies, and the installation efficiency is improved. And therefore, the drying assembly fixedly mounted at the top end of the drying assembly is kept in a horizontal state, and the stability of the drying equipment for self-sealing bag printing processing is improved.

The utility model discloses an assembly type indoor curtain wall structure which comprises a wall body, a fixing groove is formed in the bottom end of the wall body, preformed holes are formed in the top end and the two sides of the interior of the fixing groove, positioning bolts are installed in the preformed holes, a fixing block is arranged in the fixing groove, a fixing strip is fixed to the bottom end of the mounting block, and the fixing strip is fixed to the bottom end of the mounting block. A positioning piece is fixed to the bottom end of the fixing strip, and connecting pieces are fixed to the top ends of the two sides of the fixing strip. By arranging the threaded cylinder, the threaded cylinder can rotate on the outer side of the threaded column by rotating the threaded cylinder during adjustment, at the moment, the threaded cylinder can move outwards, the length of the threaded cylinder and the length of the threaded column can be increased, the length of the threaded cylinder and the length of the threaded column can be adjusted, the flatness during installation can be adjusted conveniently, and the functionality during installation is improved; and then by rotating a fixing block, the fixing block can drive a connecting column to rotate in a threaded cylinder, and the fixing block is installed in a fixing groove after being rotated by a certain angle.

The invention discloses a sleeve-type underwater pile positioning frame device with auxiliary piles and a construction method. The pile positioning frame includes an intermediate sleeve, which is an upright hollow cylinder structure for sleeve connection with the auxiliary piles; a positioning frame connected to the outer periphery of the bottom end of the intermediate sleeve; an engineering pile sleeve, which has at least three and is connected to the positioning frame, and has a columnar space for inserting the engineering piles, and the geometric centers of at least three engineering pile sleeves are located on the axis of the intermediate sleeve; a leveling device, which is arranged in multiple groups along the axial direction of the intermediate sleeve, and each group of leveling devices includes multiple leveling oil cylinders uniformly arranged on the peripheral wall of the intermediate sleeve along the circumference of the auxiliary piles; the fixed ends of the multiple leveling oil cylinders are fixed to the intermediate sleeve, and the telescopic ends act on the auxiliary piles in the intermediate sleeve. This sleeve-type underwater pile positioning frame device has a light structure, low requirements on ship machinery and equipment, low construction difficulty, and high leveling accuracy of the pile positioning frame, and can be applied to the pile construction of the positioning frame foundation in deeper sea areas.

The invention relates to an electrochemical device and an electronic device comprising the same. The electrochemical device comprises a positive electrode, a negative electrode and an electrolyte, the positive electrode comprises a positive electrode current collector and a positive electrode active material layer located on the positive electrode current collector, the positive electrode active material layer comprises a positive electrode active material, based on the mass of the positive electrode active material layer, the mass percentage of the positive electrode active material is M%, the value range of M is 95-99, the cracking width of the surface of the positive electrode active material layer is W mm, and M and W meet the condition that M / W is larger than or equal to 47.5. The electrochemical device provided by the invention has reduced DC internal resistance and improved capacity retention rate, low temperature performance and floating charge performance.

The present application relates to an electrochemical device and an electronic device comprising the same. The electrochemical device of the present application comprises: a positive electrode, a negative electrode and an electrolyte, the positive electrode comprising a positive electrode current collector and a positive electrode active material layer on the positive electrode current collector, the positive electrode active material layer comprising a positive electrode active material, wherein the mass percentage of the positive electrode active material is M% based on the mass of the positive electrode active material layer, M ranges from 95 to 99, and the cracking width of the surface of the positive electrode active material layer is W mm, wherein M and W satisfy: M / W≥47.5. The electrochemical device provided by the present application has reduced direct current internal resistance and improved capacity retention rate, low temperature performance and floating performance.

The utility model relates to the technical field of wood floor structures, in particular to a suspended physical exercise wood floor structure which comprises a ground, a moisture-proof film is fixedly installed on the surface of the ground, a cushion pad is fixedly installed on the surface of the moisture-proof film, a thread sleeve is rotatably connected to the surface of the cushion pad, and a hexagon head is fixedly installed on the surface of the thread sleeve. And a threaded rod is in threaded connection with the interior of the threaded sleeve, a first keel is fixedly installed at the end of the threaded rod, a cushion block is fixedly installed on the surface of the first keel, and a second keel is fixedly installed on the surface of the cushion block. According to the floor structure, the buffer pad provides buffer support to reduce the influence of sports impact on the floor, the risk of sports injury is reduced, the flatness of the floor is adjusted, the comfort level and the performance stability are improved, the screw rod and the screw sleeve form a connecting part of the floor structure, firm connection among all parts of the floor is ensured, and the floor structure is simple in structure and convenient to use. Displacement and deformation of the floor are reduced, and stability is improved.

The utility model discloses a concrete slab hanging structure which comprises a concrete slab and a hanging part arranged on the outer side of the concrete slab, two concave parts are arranged on the surface of the concrete slab in a spaced mode, a plurality of bosses are arranged on the outer side faces of the two concave parts respectively, and the hanging part comprises a first transverse rod and a second transverse rod which are located on the upper side and the lower side of the concave parts respectively. A mounting frame is arranged between the first cross rod and the second cross rod and movably connected with the first cross rod and the second cross rod, a mounting cavity allowing the concave part to penetrate through is formed in the middle of the mounting frame, the mounting frame can be fixedly connected with the concrete slab through the boss, and a rotating device is arranged on the side, close to the mounting frame, of the second cross rod. When the concrete slab module is hung, the flatness of the curtain wall can be rapidly adjusted, the installation efficiency and the overall splicing precision are further improved, and the concrete slab module hanging device belongs to the field of building curtain walls.

This application relates to a spacing adjustment device, a cabinet, and a refrigerator, specifically in the field of refrigerator technology, and aims to provide a device for facilitating the adjustment of the spacing between the door and the cabinet when closed. The spacing adjustment device includes a housing, a support assembly, and an adjustment assembly. The housing has an adjustment cavity, and a first insertion hole and a second insertion hole communicating with the adjustment cavity. A portion of the support assembly is located within the adjustment cavity, and another portion of the support assembly extends out of the adjustment cavity via the first insertion hole. A portion of the adjustment assembly is inserted into the second insertion hole, and a portion of the adjustment assembly is located within the adjustment cavity. The adjustment assembly is configured to have a switchable first state and a second state. When the adjustment assembly is in the first state, the portion of the adjustment assembly located in the adjustment cavity is drively connected to the support assembly to adjust the insertion depth of the support assembly within the first insertion hole. When the adjustment assembly is in the second state, it prevents the adjustment assembly from driving the support assembly to adjust the insertion depth within the first insertion hole.

The utility model relates to the technical field of building construction, and discloses an internal corner template. The internal corner template comprises a template main body with a right triangle-shaped cross section, wherein the template main body comprises a side inclined surface and two side right-angle surfaces; the internal corner formwork further comprises a butt joint piece, a connecting assembly and a driving assembly, and the butt joint piece is movably arranged on the side inclined face in the extending direction of the side inclined face and can be connected with the plane formwork. The connecting assembly comprises a first connecting piece and a second connecting piece, the first connecting piece penetrates through the formwork body in the vertical direction, the position of the first connecting piece in the vertical direction is adjustable, one end of the second connecting piece is hinged to the first connecting piece, and the other end of the second connecting piece is hinged to the butt joint piece; the driving assembly is detachably arranged on the formwork body, and the driving assembly is connected with the first connecting piece and used for driving the first connecting piece to move vertically. By using the internal corner template, the overall stability of a template system after the plane template and the internal corner template are closed can be ensured, the difficulty of mold closing operation is reduced, and the mold closing speed is increased.

The invention relates to the technical field of wind turbine generator equipment, in particular to a wind power tower sealing platform welding protection device which comprises a protection frame and at least three fixing assemblies. The protection frame is horizontally placed on the ground, and the protection frame is configured to be located at the bottom of the vertically-arranged cylinder section; the fixing assemblies are installed on the protection frame at intervals and are configured to fix the bottom of the barrel section. The structural strength of the cylinder section in the welding process is enhanced, so that the deformation quantity generated in the welding process of the cylinder section is reduced, and the performance of the welded cylinder section is guaranteed.

The invention discloses a curtain wall force transmission system and a construction method thereof. The force transmission system comprises a building body and a reserved window opening, a curtain wall keel is fixed to the building body, a curtain wall plate is fixed to the curtain wall keel, a window opening auxiliary frame is fixed in the reserved window opening, an adjustable supporting piece is arranged between the bottom of the window opening auxiliary frame and the reserved window opening, and a force transmission rod is connected between the curtain wall keel and the window opening auxiliary frame. The construction method comprises the following steps: fixing a curtain wall keel on a building main body; an adjustable supporting piece is arranged at the bottom of the reserved window opening of the building body; a window opening auxiliary frame is temporarily positioned and installed in the reserved window opening; the adjustable supporting piece is supported between the bottom of the window opening auxiliary frame and the reserved window opening. A dowel bar is connected between the curtain wall keel and the window opening auxiliary frame; a curtain wall wallboard is installed on the curtain wall keel; a window body is installed on the inner side of the window opening auxiliary frame. The building curtain wall has the beneficial effects that force on the curtain wall glass, the curtain wall keel and the curtain wall plate is effectively transmitted to a building main body structure, and the structural safety of the building curtain wall is improved.

This application provides an air blowing mechanism and a conveying mechanism, relating to the technical field of conveying mechanisms. The air blowing mechanism of this application includes: a base, a first air nozzle disposed on the base, and a second air nozzle disposed on the base; the base has a gas outlet, and the gas outlet has a first reflective wall and a second reflective wall on both sides; the first air nozzle faces the second reflective wall, and the second air nozzle faces the first reflective wall, so as to form a vortex between the first reflective wall and the second reflective wall.

The invention relates to a liquid tank transverse supporting structure which comprises a first metal structure arranged on a liquid tank, a liquid tank laminated wood fixing structure fixed to the first metal structure and liquid tank part laminated wood fixed to the liquid tank laminated wood fixing structure through a first bolt. The ship body supporting part comprises a second metal structure fixed to the ship body of the liquefied gas carrier and ship body part laminated wood connected to the second metal structure through a second bolt, and the end face of the ship body part laminated wood abuts against the end face of the liquid tank part laminated wood in the transverse direction. The gap adjusting function of the liquid tank transverse supporting structure is carried by the ship body side, so that all components at the liquid tank end can be completed before being assembled on the ship. Therefore, the high stress risk of epoxy is avoided, and the integrity of the liquid tank and insulation is ensured. The ship body part laminated wood is further used for adjusting the straightness and flatness between the ship body and the liquid tank, installation can be carried out after the liquid tank is assembled on the ship or the main deck is closed, and installation is convenient.

The invention relates to the technical field of pipe jacking construction, in particular to an adjustable base structure for pipe jacking construction and an adjusting method. Comprising a supporting plate, a bottom plate and a supporting groove, the bottom plate is of a plate-shaped structure located below the supporting plate, and an adjusting structure used for adjusting the two vertical distances is arranged between the bottom plate and the supporting plate; the supporting groove is of a plate-shaped structure with the upper end provided with an arc-shaped groove used for containing the jacking pipe, and the supporting groove is fixed to the supporting plate. The pipe jacking device can be applied to pipe jacking construction, the height and flatness of a jacking pipe can be conveniently adjusted, butt joint of the jacking pipe and a soft hole is easier, the whole device is quite convenient to use, a large amount of manpower and material resource cost is saved, and the efficiency and safety of pipe jacking construction are improved.

The utility model discloses an adjustable combined decorative plate connecting structure which comprises a decorative plate body, a plate head is arranged on one side of the upper end of the decorative plate body, a transverse clamping base is fixedly connected to one side of the plate head through a screw, the transverse clamping base is connected with a movable connecting assembly, and the transverse clamping base is connected with a longitudinal clamping base through the movable connecting assembly. The decorative plate has the advantages that the decorative plate main body is clamped on the movable connecting assembly through the transverse clamping seat, so that the decorative plate main body can be connected to the longitudinal clamping seat of the wall surface, the wall surface cannot be damaged when the decorative plate main body is disassembled and replaced in the later period, and the movable connecting assembly can move up and down along the longitudinal clamping seat; the transverse clamping seat can move left and right along the movable connecting assembly, so that the decorative plate body can be conveniently moved up and down or left and right to a proper position, the clamping sleeve can stretch and retract along the guide rod, and the flatness of the decorative plate body can be adjusted.

The utility model relates to an assembly type building prefabricated part laminated slab mould, which belongs to the technical field of laminated slab moulds and comprises a frame body, a cover plate and a steel plate, the steel plate is fixed on the lower surface of the cover plate, the cover plate is placed on the upper surface of the frame body, and clamping mechanisms are arranged on the left side and the right side of the frame body. According to the split mounting type building prefabricated part laminated slab mold, a certain amount of pouring materials can be poured into the frame body, a certain amount of steel bars are placed in the frame body, handles on the left side and the right side are pulled to move in the opposite directions, clamping columns on the left side and the right side are driven to move in the opposite directions, and after the clamping columns move by a certain distance, the pouring materials are poured into the frame body; the cover plate can cover the upper surface of the frame body, the steel plate is located in the frame body, then the handles on the left side and the right side are loosened, the spring telescopic rods on the left side and the right side are reset and drive the clamping columns on the left side and the right side to be slidably inserted into the clamping grooves in the left side and the right side, then fixing is convenient, and meanwhile the cover plate can be conveniently detached from the upper surface of the frame body.

The application discloses a sewing machine cloth feeding flatness adjusting system and method and a sewing machine. The adjusting system comprises a first visual sensor, a second visual sensor, a third visual sensor, a sewing machine control system, a track control module, a time sequence control module, a stitch control module, a tension control module and a cloth dragging wheel control module. The first visual sensor is arranged above a thread storage groove of a presser foot and avoids a needle. The second visual sensor is arranged above a left side or a right side of the presser foot. The third visual sensor is arranged above a front side of the presser foot. The first visual sensor, the second visual sensor and the third visual sensor are in communication connection with a signal input end of the sewing machine control system. Signal output ends of the sewing machine control system are in communication connection with the track control module, the time sequence control module, the stitch control module, the tension control module and the cloth dragging wheel control module. The application can adjust the cloth feeding flatness of the sewing machine.

The invention relates to an organic solar cell device quaternary polymer donor and preparation and application thereof, the donor has the following basic unit structure:-[D1-A1-D2-A2] n-, D1 and D2 are donor groups, and A1 and A2 are acceptor groups; according to the present invention, two donor units F-BDT and Si-BDT and two acceptor units 2Br-BDD and DFQ are synthesized through a Stille coupling reaction by using a one-pot method so as to obtain the quadripolymer with excellent performance; by adjusting the donor and acceptor groups introduced into the polymer, the structure of the polymer donor is effectively regulated, the device performance is remarkably improved, the molecular flatness is regulated, the morphology of an active layer is optimized, the Voc of the device is 0.828 V, the Jsc is 27.79 mA cm <-2 >, the filling factor is 78.78, the power conversion efficiency is 18.13%, and the donor is simple and convenient in process, high in cost benefit and very high in feasibility.

The utility model discloses a flatness-adjustable base for a five-axis processing machine, and belongs to the technical field of five-axis processing machines, the flatness-adjustable base comprises a box body with an open top surface and an open side surface, the top surface of the box body is hinged with a box cover for covering, four corners of the bottom surface of the box body are provided with sliding holes, a cavity is arranged right above the sliding holes, and the sliding holes are communicated with the cavity. A threaded rod is rotationally arranged in the sliding hole, the upper end of the threaded rod extends into the cavity, the lower end of the threaded rod is in threaded connection with a sleeve in a sleeved mode, and the sleeve is slidably connected into the sliding hole. According to the flatness-adjustable base for the five-axis machining machine, the worm gear is driven to rotate through the driving assembly, then the sleeve is driven to move, the flatness is adjusted in cooperation with the foot support, meanwhile, the flatness of the base is judged in cooperation with pigment water in the L-shaped water tank, and compared with an existing device, the situation that the base is adjusted in order to achieve accurate adjustment is avoided; and a professional gradienter is often needed for operation, so that the operation is complicated, and the processing efficiency is improved.

The utility model relates to the technical field of air -setting felt structure discloses self -locking heat preservation composite board structure of heat preservation layer, including the heat preservation layer formed by aerogel heat preservation material, the first board spare and the wrapping layer of setting in the both sides of heat preservation layer, card piece, card piece includes the snap ring and the card cylinder, the crown cap is set to card cylinder end, the snap ring is provided with the card slot corresponding to the crown cap, and the card cylinder passes through the first board spare and heat preservation layer in proper order and is connected with the snap ring, and the snap ring is connected with the screw rod simultaneously with the card cylinder. Make aerogel heat preservation material not appear dust drop in the use process, do not harm health.