611results about "Screen printing" patented technology

The invention discloses an electronic component solder paste printing device, and belongs to the technical field of electronic component production and processing equipment. The device comprises a shell, a steel mesh is fixedly connected to the interior of the shell, a fixed sliding rod is fixedly connected to the top of the steel mesh, a sliding groove is formed in the side wall of the steel mesh, a feeding mechanism is arranged on the outer wall of the fixed sliding rod, solder paste is stirred and automatically fed during printing work, a scraper mechanism is arranged on the inner wall of the sliding groove, and the scraper mechanism is arranged on the inner wall of the sliding groove. According to the tin paste recycling device, the tin paste can be automatically recycled during printing work, a storage mechanism is arranged on the top of the steel mesh, and when the tin paste is recycled, the tin paste can be stored in a sealed mode. The feeding box slidably extrudes the sealing block to relieve sealing of the feeding groove, automatic feeding is achieved, it is avoided that a large amount of solder paste is placed in a machining area at a time, the oxidation or deterioration risk caused by the fact that the solder paste is exposed to air for a long time is reduced, and therefore the printing work effect of electronic components is guaranteed.

The invention provides top frame equipment applied to an etching process and a silk screen processing process, and relates to the technical field of silk screen processing. The invention discloses top frame equipment applied to an etching process. The top frame equipment comprises a rack, a mounting groove body, a jacking assembly, a moving mechanism, a gluing nozzle and a rolling assembly, the mounting groove body is connected with the rack and is used for mounting the stretching auxiliary screen printing plate; the jacking assembly is connected with the rack and used for installing a target screen frame, and the jacking assembly drives the target screen frame to abut against the screen cloth; the gluing nozzle is connected with the moving mechanism, and the moving mechanism drives the gluing nozzle to move, so that the gluing nozzle coats glue to the screen cloth along the outline of the target screen frame; the rolling assembly comprises a supporting shell and a compaction roller, the supporting shell is connected with the moving end of the moving mechanism, the compaction roller is rotationally connected with the supporting shell, and the moving mechanism drives the compaction roller to move, so that the compaction roller rolls glue on the screen cloth along the outline of the target screen frame. The screen cloth and the target screen frame can be bonded more compactly through glue.

The invention relates to the technical field of screen printing, in particular to circuit board screen printing equipment and a screen printing process. The invention discloses circuit board screen printing equipment and a screen printing process. The equipment comprises a screen printing machine body, a mounting plate, a clamp, a silk screen, an ink scraping assembly and the like, a mounting plate is mounted at the rear part of the screen printer body through an electric guide rail; a plurality of clamps are connected to the mounting plate; the plurality of clamps are jointly provided with a silk screen; an ink scraping assembly used for scraping ink is arranged on the mounting plate; the electric drive guide rail drives the mounting plate, the clamp, the silk screen and the ink scraping assembly to ascend and descend. The maximum stroke positions of movement of the scraper and the ink returning blade are set to be located above the intercepting faces on the left side and the right side respectively, movement of the ink is intercepted, limited and guided through the intercepting faces, and in the subsequent process that the scraper and the ink returning blade scrape the ink along the intercepting faces, in the coining process and the ink returning process, it is guaranteed that the ink is located on a working area all the time; and the problem of waste caused by ink moving out of a working area due to pushing of the scraper and the ink return blade is avoided.

The invention provides a curved surface screen printing control method and system and electronic equipment. According to the technical scheme, the corresponding relation between the curved surface rotation angle and the curved surface arc length is obtained according to the pre-obtained corresponding relation between the curved surface rotation angle and the curved surface radius; according to the corresponding relation, the maximum height of the to-be-printed curved surface under different rotation angles is determined, the corresponding curved surface rotation angle is determined by restraining the maximum height value, and then the optimal contact angle of the silk screen and the to-be-printed curved surface is determined; determining the horizontal and vertical coordinates of the corresponding optimal contact point according to the optimal contact angle; according to the horizontal and vertical coordinates, determining a four-axis position relation based on a corresponding relation between a curved surface rotation angle and a curved surface arc length; according to the four-axis position relation, the difference value between the abscissa of the screen and the abscissa of the optimal contact point serves as a constant control quantity, four-axis movement is simulated to obtain a four-axis movement curve, and then four axes of the curved surface screen printing machine are controlled to conduct corresponding movement. According to the method and the device, the problems that the efficiency of an acquisition mode of an existing curved surface silk-screen printing control scheme is low and the printing quality of the obtained curved surface silk-screen printing control scheme is relatively low can be solved.

The invention relates to the technical field of printing screens, in particular to a screen and a manufacturing method thereof, a solar cell and a production method thereof, and a photovoltaic module. The screen printing plate comprises a film body, graphical grid line printing holes are formed in the film body, the grid line printing holes comprise grid line main body printing holes and lap joint printing holes which are communicated, and the grid line main body printing holes are configured to be consistent with an auxiliary grid printing area or a main grid printing area in graph. The lap joint printing hole is configured to be consistent with the pattern of the lap joint printing area; in the thickness direction of the film body, one end of each grid line main body printing hole is exposed out of the first surface, and the other end of each grid line main body printing hole is positioned in the film body; the lap joint printing hole penetrates through the film body, and the two ends of the lap joint printing hole are exposed out of the first face and the second face respectively. When the screen printing plate is used for printing, not only can the slurry cost be reduced, but also higher printing quality can be achieved.

The invention discloses a flat suction device for curved vehicle-mounted glass screen printing, and relates to the technical field of vehicle-mounted glass screen printing, the flat suction device comprises a base, a positioning mechanism for positioning curved glass and an air pressure bag supporting assembly for supporting the curved glass, and the positioning mechanism and the air pressure bag supporting assembly are both arranged on the base. According to the device, the action height of the suction cups is increased or decreased through the electric telescopic rods, curved glass is placed on the four sets of suction cups, and at the moment, the supporting soft plates can automatically adjust the action angle between the suction cups and the curved glass, so that the suction cups and the curved glass maintain the optimal attaching angle, and the fixing effect of the suction cups is improved; the rear booster pump inflates the air pressure bag supporting assembly, the size of the air pressure bag supporting assembly is increased after the air pressure bag supporting assembly is inflated so that the air pressure bag supporting assembly can be matched with the arc-shaped bottom face of the curved glass, the air pressure bag supporting assembly is responsible for pushing the curved glass upwards, the suction cup is responsible for fixing the position of the curved glass, static balance is maintained between the air pressure bag supporting assembly and the suction cup, and therefore the stable effect of the curved glass is guaranteed.

The invention relates to the technical field of circuit board processing, in particular to a manufacturing process of a high-performance inner-layer ultra-thick copper circuit board which comprises a bearing table, a back plate and the like. A back plate is arranged on the bearing table. Printing ink is stored through the storage box, the situation that printing ink is not evenly printed due to printing ink diffusion is avoided, and the printing ink printing effect of equipment is improved; through the structure that the middle of the flow dividing rod is high and the two sides of the flow dividing rod are low, ink is slowly collected into the storage box along the flow dividing rod in cooperation with flowability of the ink, the problem that the ink utilization rate is low is solved, and meanwhile the situation that the ink is accumulated and hardened for a long time is avoided. The circuit board is ejected upwards through the ejector rod, then a worker can hold the lower side of the circuit board with hands to take out the circuit board, and the circuit board is prevented from being damaged while the worker conducts discharging conveniently. And the circuit board is accurately placed on the upper side of the fixing frame through cooperation of a guide plate and a limiting block, so that feeding by workers is more convenient.

The invention relates to the field of photovoltaic technology, in particular to a solar cell, a photovoltaic module and a printing screen. The solar cell comprises a substrate, the substrate is provided with a fine grid, a first connecting point and a second connecting point, the first connecting point comprises a first connecting part, the second connecting point comprises a second connecting part, the width of the first connecting part is L1, the width of the second connecting part is L2 in the second direction y, and L1 and L2 meet the condition that L1 / L2 is larger than or equal to 1.02 and smaller than or equal to 1.5. In the process of assembling the solar cell and the solder strip to form the photovoltaic module, the contact area between the first connection point and the solder strip is increased by arranging the first connection part with a larger size along the second direction y, so that the connection strength between the first connection point and the solder strip is improved; therefore, the first connection point can be preferentially arranged in the high-risk area on the substrate, so that the possibility of relative displacement or mutual separation of the first connection point and the second connection point in the high-risk area is reduced, and the stability and the reliability of the solar cell and the photovoltaic module in the working process are improved.

The invention relates to the technical field of semiconductor chip mounting equipment, in particular to a solder paste printing mechanism applied to a semiconductor die bonder and clamping and welding equipment, which comprises a jacking assembly, and the jacking assembly is responsible for jacking a lead frame to a certain height from a chip passing track mechanism; the printing assembly is responsible for completing the solder paste printing action on the jacked lead frame; through cooperation of the jacking assembly and the printing assembly, the jacking assembly is responsible for jacking the lead frame to a certain height from the inside of the sheet passing track mechanism, the printing assembly is responsible for completing the solder paste printing action on the jacked lead frame, and after the printing is completed, the lead frame is printed on the sheet passing track mechanism. The lead frame is lowered into the sheet passing track through the jacking assembly and is clamped and conveyed to the next working procedure through the clamping jaw, the precision of UPH and tin paste points on the lead frame is effectively improved, meanwhile, the device can be used for tin paste printing and can also be used for printing of conductive adhesive or silver paste, and the universality of the device is improved.

The invention discloses a full-automatic silk-screen printing production line for narrow sheets, particularly relates to the field of printing equipment, and comprises a narrow sheet printing machine, a sheet arranging conveyor, a drying machine box and an air cooling machine. The narrow sheet printing machine is formed by combining a feeding rack, a screen clamping part, a printing large arm part, a printing machine head part, a screen lifting frame part, a conveying part, a table top part and an operation panel, the feeding rack is installed at the front end of the sheet arranging conveying machine, and the drying machine box is installed on one side of the sheet arranging conveying machine. The air cooling machine is installed on one side of the drying machine box, the table top part is provided with a table top bottom frame, the table top bottom frame is installed at the top end of the feeding rack, and three supporting table tops are movably installed at the top end of the table top bottom frame; according to the invention, manual adjustment of the screen printing plate for printing by a person with shallow experience is not needed, large errors are avoided, the method has the advantages of good stability and high accuracy, and meanwhile, the processing efficiency is improved.

The invention provides a colored glazed glass screen printing device, method and device, a controller and a medium, and the device comprises a workbench which is used for placing a glass assembly to be subjected to screen printing; the ink storage box is used for storing ink to be used; the stirring module communicates with the printing ink storage box and is used for stirring the printing ink; the screen printing module communicates with the stirring module and is arranged on the workbench; the flat coating module is used for carrying out laminated flat coating on the screen-printed glass assembly and flatly coating texture patterns on the glass assembly; the controller is electrically connected with the stirring module, the screen printing module and the flat coating module, obtains screen printing pattern information and glass information of the glass assembly, and generates stirring control parameters corresponding to the stirring module, screen printing control parameters corresponding to the screen printing module and flat coating control parameters corresponding to the flat coating module according to the screen printing pattern information and the glass information; the stirring module, the screen printing module and the flat coating module are controlled to complete screen printing of the glass assembly, and the colored glazed glass obtained after screen printing is completed is obtained.

The invention provides intelligent sensing high-precision solder paste printing equipment and a control system, and relates to the technical field of circuit board printing, the intelligent sensing high-precision solder paste printing equipment comprises an outer protective frame, a conveyor and a main controller, a control main system is implanted in the main controller, the main controller is installed on one side of the front face of the outer protective frame, and a material box is placed on the side, close to the conveyor, in the outer protective frame; a plate shell is placed in the material box, a circuit board is placed in the plate shell, side holes are formed in the two sides of the plate shell, clamping controllers are installed on the two sides in the plate shell, and high-precision detection and solder paste brushing on the circuit board are achieved through advanced technologies such as a high-definition camera, an image recognition algorithm and a thickness detector. For example, a high-definition camera can capture fine defects and characteristics on the circuit board, the accuracy of marking and paste brushing is ensured, and meanwhile, various sensors and a control system can accurately control the use amount, thickness and position of the solder paste.

The invention provides a printing process support system capable of contributing to improvement of printing quality. The printing process assistance system includes: a printing unit that performs a printing process of printing a coating material on a substrate through an opening formed in a mask and a cleaning process of cleaning a lower surface of the mask at predetermined cleaning intervals and a number of times; a control unit that controls the actions of the printing process and the cleaning process; an inspection unit that inspects the bleeding state of the coating material on the printed substrate; and an information output unit that outputs auxiliary information for improving bleeding to at least one of the control unit and a notification unit capable of notifying an operator when bleeding occurs continuously as a result of the inspection. The information output unit outputs, as the auxiliary information, information for improving the frequency of the cleaning process.

The screen printing machine comprises a feeding mechanism, a printing machine table and a discharging mechanism which are arranged in sequence, and the feeding mechanism is used for conveying battery pieces to be printed to a feeding position; the printing machine table comprises a machine frame, a transferring mechanism and at least two printing parts, each printing part comprises a mounting machine frame, a printing table and a printing mechanism, the mounting machine frames extend in the second horizontal direction, and the printing tables can move to the material receiving station, the printing station and the discharging station in the second horizontal direction to be mounted on the mounting machine frames; the printing mechanism is used for printing the battery pieces on the printing table on the printing station; the transfer mechanism is used for picking up the battery pieces at the feeding position, conveying the picked battery pieces to the positions above the material receiving stations of all the printing parts in the first horizontal direction and then releasing the battery pieces to the printing tables located on the material receiving stations. According to the screen printing machine, the overall length of the machine table is greatly shortened, and equipment can be conveniently placed in a workshop.

The invention discloses a silk-screen printing device capable of reducing silver paste consumption. The silk-screen printing device comprises a rack; a vibration assembly and a printing table; a leveling assembly; the silk screen assembly comprises a silk screen plate, the printing assembly comprises a translation assembly and a paste scraping assembly, the paste scraping assembly comprises a paste scraping unit, the paste scraping unit comprises a roller and a roller sleeve, and the translation assembly drives the paste scraping assembly to reciprocate in the length direction of the silk screen plate; the movable assembly comprises a lifting unit and an elastic connecting unit; and a butt joint assembly. According to the silk-screen printing device capable of reducing silver paste consumption, the elastic roller sleeve is supported through the rigid roller, silver paste is extruded to penetrate through meshes in the silk-screen plate through the roller sleeve rotating around the axis of the roller sleeve, abrasion of the silk-screen plate is reduced, it is guaranteed that the silver paste is attached to a battery piece after being pressed, the printing quality is improved, and the printing efficiency is improved. The roller sleeve extrudes slurry attached to the surface of the roller sleeve through rotation, the residual amount is reduced, and therefore silver slurry on the silk screen plate can be fully used, and the use amount of the silver slurry is reduced.

Disclosed in the present disclosure is a printing screen, comprising a screen body and a surface treatment layer. The screen body comprises a printing side, a bottom side and several penetratingly-arranged grid lines, the printing side and the bottom side being arranged opposite each other. The surface treatment layer is arranged on the printing side and / or the bottom side or in the grid lines, the surface treatment layer comprising micro-nano structures or coating structures. The surface treatment layer is provided on the printing side and / or bottom side of the screen body, so that the resistance of a squeegee on the printing side during printing can be controlled, thereby controlling the amount of ink, improving the uniformity and ink discharge performance; the surface energy of the bottom side can be changed, improving the quality of the printing screen; the scratch resistance of the bottom side can be improved; and the hardness of a lower surface can be changed, improving the performance of the screen body.

A screen printing plate comprises a screen frame and screen cloth. The screen cloth is arranged in the screen frame and comprises a metal plate, and the metal plate is provided with a scraper face and a pasting and printing face. The surface of the blade surface is roughened to have an average roughness of between 20 nm and 5 [mu] m.

The invention provides a printing screen capable of improving the ink penetration effect. The screen printing plate comprises a screen frame and screen cloth arranged in the screen frame, the screen cloth comprises a graphic area and a peripheral area annularly arranged outside the graphic area, the graphic area comprises a metal support, the two ends of the metal support are connected with the peripheral area, and the thickness of the metal support is smaller than that of the peripheral area.

The present invention discloses a four-position full-cell solar silicon wafer printer, including a base, an infeed guide rail, a detection camera assembly, a turntable assembly, a lifting module, a UVW correction alignment mechanism, and an outfeed guide rail. The UVW mechanism comprises two Y-axis modules, one X-axis module, a printing platform, a steel mesh frame, and a printing squeegee kit. The Y / X-axis modules are under the platform, their drive ends connected to the steel mesh frame. The squeegee kit moves left-right on the platform. It uses the Y / X-axis modules and detection camera to realize X, Y, θ three-axis motion, ensuring steel mesh-silicon wafer alignment and optimizing printing directions.

The invention discloses a photovoltaic solar silicon wafer silk-screen printing positioning device and a using method, the photovoltaic solar silicon wafer silk-screen printing positioning device comprises a printing table and a positioning seat, the positioning seat is installed at the top of the printing table, a silicon wafer silk screen is placed in the positioning seat, and a lifting scraper frame is installed at the top of the printing table. During printing processing, a driving assembly drives a positioning seat to move to the position below a lifting scraper frame for printing, in the process, air pushing piston rods slide into an air cylinder A, air in the air cylinder A enters an exhaust cylinder B through an air channel, the multiple positioning piston rods push clamping plates A to move, and the two sides of a silicon wafer silk screen are clamped; and meanwhile, the bevel push block can also move to enable the clamping plate B to move, finally, after the silicon wafer silk screen moves to the printing position, the four sides of the silicon wafer silk screen are tightly attached to the clamping plate B, the clamping plate A and the inner wall of the positioning base correspondingly to complete clamping, manual operation is not needed for positioning, automatic clamping is achieved, and inconvenience caused by using electric equipment is avoided.

A work device according to the present disclosure is provided with: a substrate support member that supports a substrate; a table on which the substrate support member is placed; and a control device. The substrate support member has: a substrate placement surface on which the substrate is placed; a contact surface which is a surface opposite to the substrate placement surface and comes into contact with the table when placed on the table; a suction port which is disposed on the substrate placement surface and sucks the substrate; a connection port which communicates with the suction port and opens toward a side opposite to the substrate placement surface; and a held part which is held by a conveyance jig. The table has: a support member placement surface on which the substrate support member is placed; and a negative pressure supply port which is disposed at a position communicating with the connection port in a state in which the substrate support member is placed, and supplies negative pressure to the substrate support member. The control device performs support member replacement processing including support member carry-out processing and support member carry-in processing.

The present invention relates to the field of screen printing technology, and in particular to a circuit board screen printing device and a screen printing process. A circuit board screen printing device and a screen printing process, including a screen printing body, a mounting plate, a fixture, a screen and an ink scraping assembly, etc.; a mounting plate is installed on the rear of the screen printing body through an electric drive rail; a plurality of fixtures are connected to the mounting plate; a screen is installed on the plurality of fixtures; an ink scraping assembly for scraping ink on the mounting plate; the mounting plate, the fixture, the screen and the ink scraping assembly are driven up and down by the electric drive rail. By setting the maximum travel position of the scraper and the ink return knife to be located above the intercepting surfaces on the left and right sides respectively, the movement of the ink is intercepted, limited and guided by the intercepting surface, and the scraper and the ink return knife subsequently scrape the ink along the intercepting surface. During the printing process and the ink return process, it is ensured that the ink is always located on the working area, avoiding the problem of ink moving outside the working area due to the push of the scraper and the ink return knife, causing waste.

The invention relates to the electronic circuit manufacturing technology, and discloses automatic printing equipment for PCBA board processing and a printing technology thereof.The automatic printing equipment comprises a rack and conveying tables located on the two sides of the rack, a printing table and a printing table are arranged on the rack, the printing table and the two conveying tables are located on the same horizontal line, the printing table is located over the printing table, and the printing table is located above the printing table; a screen printing steel mesh and a solder paste dipping mechanism are arranged on the printing table, an identification probe is arranged at the bottom of the printing table in a sliding mode, a lifting mechanism is arranged in the rack and comprises a driving block, a jacking piece and a multi-stage air cylinder driving the driving block to slide, and a plurality of guide columns vertically penetrating through the bottom plate in a sliding mode are distributed at the bottom of the printing table. The supporting piece is connected to the bottom of the printing table, a conveying platform, a verification platform and a tin coating platform are sequentially arranged on the driving block in the sliding direction, the conveying platform and the verification platform are in transition connection through an inclined face, and the verification platform and the tin coating platform are in transition connection through an inclined face. The device has the effect of improving the production efficiency of the PCBA silk-screen solder paste.

The invention relates to the technical field of printing screens, in particular to a printing screen and a manufacturing method thereof. The printing screen comprises a screen body and a filiform structure. A printing groove is formed in the screen printing plate body and penetrates through the screen printing plate body in the thickness direction of the screen printing plate body, and the length direction of the printing groove is the first direction. The filamentous structure is arranged at the position of the printing groove on the screen printing plate main body; in the first direction, the filiform structure corresponds to a local area of the printing groove; the filiform structure extends along a second direction, and the second direction intersects with the first direction. According to the screen printing plate, the silk-shaped structure is locally arranged, so that the screen printing plate body has high structural strength and long service life, the rest area, not provided with the silk-shaped structure, of the printing groove has good slurry passing ability, and the printing appearance of grid lines is good.

The invention relates to the technical field of screen printing, and discloses a screen frame capable of reducing distortion of screen wires, the screen frame comprises a plurality of bevel gears, the bevel gears are rotatably connected to the four corners of the interior of an outer frame, the bevel gears are connected in a meshed mode, the outer sides of the bevel gears are fixedly connected with first threaded blocks, and the first threaded blocks are fixedly connected with second threaded blocks. The outer side of the first threaded block is in threaded connection with a moving block, the upper side and the lower side of the exterior of the moving block are rotationally connected with first telescopic plates, the outer sides of the first telescopic plates are rotationally connected with scrapers, a steel wire mesh is arranged in the middle of the inner side of the outer frame, and the outer side of the steel wire mesh is fixedly connected with an inner frame. The structural strength of the net wires is enhanced through the inner frame and the steel wire net, the distance between the net wires and the outer frame is kept consistent through arc-shaped clamps, the distortion influence is reduced, a rotating bevel gear drives a component to rotate synchronously through meshing, a first telescopic plate and a scraper are pushed to scrape coating, the device can be repeatedly used, and the distortion degree of the net wires in use is reduced.

The invention provides a safety control and early warning system for silk-screen printing, and belongs to the technical field of control and early warning. The demand module is used for determining a target function of silk-screen printing and a printing parameter type needing to be monitored based on the target function according to a silk-screen printing process; the data acquisition module is used for acquiring real-time printing data in the printing process in real time on the basis of installing a sensor consistent with the printing parameter type; the analysis module is used for analyzing safety risk scores of silk-screen printing after standardizing the real-time printing data, and the safety risk scores comprise a precision safety risk score and an operation safety risk score; the control module is used for judging the early warning level of the safety risk score and generating a control instruction; and the optimization module is used for executing the control instruction to obtain a silk-screen printing safety control result, comparing the silk-screen printing safety control result with a preset control result and optimizing the control process. Printing stability and product quality are improved, production efficiency is optimized, and faults and cost are reduced.

The invention relates to the technical field of industrial Internet of Things, edge calculation, silk-screen and the like, and provides a substrate silk-screen method and equipment based on an intelligent silk-screen unit, and the method comprises the steps: configuring a feeding mechanism, a dust removal mechanism, a pre-printing alignment mechanism and a printing mechanism which are connected in sequence, and establishing an industrial Internet of Things information sensing layer and an edge gateway which are in two-way communication with the feeding mechanism, the dust removal mechanism, the pre-printing alignment mechanism and the printing mechanism. Order and formula data are received through a gateway, multi-source sensing point location real-time data are fused, a production model with a unified time reference and batch identification is constructed, and process parameters are dynamically issued. And during feeding, the model and the warping degree of the substrate are automatically recognized, and dust removal parameters are synchronously adjusted. In the printing process, screen tension, scraper stress, motor current and printing ink rheological property are monitored in real time and fused to obtain a printing ink comprehensive rheological characteristic value, scraper parameters and an ink return time sequence are cooperatively regulated according to the printing ink comprehensive rheological characteristic value, and a printing quality estimated value is output. According to the method, collaborative optimization and quality estimation of the whole printing process are achieved, and the production adaptability and consistency of product printing are improved.

The invention belongs to the technical field of printing equipment, and provides a breadth-adjustable lifting type screen printing machine which comprises a supporting groove, and a placing table is mounted at the upper end of the supporting groove; the number of the lifting grooves is two, the two lifting grooves are oppositely installed at the upper end of the supporting groove, reciprocating threaded rods are rotatably installed in the two supporting grooves, lifting plates are slidably installed in the two lifting grooves, and threaded rings are arranged in the two lifting plates in a penetrating mode; lifting is achieved through cooperation of the reciprocating threaded rod and the threaded ring, so that lifting type printing operation of the printing screen frame and the screen body is achieved, compared with a traditional rotary printing screen frame and screen body, the screen body vertically acts on the surface of a printing stock through lifting, local pressure nonuniformity and pattern deformation caused by angle deviation during rotation can be avoided, and the printing quality is improved. Printed patterns are more accurate and clear, and the printing quality is improved. In the lifting process, the contact area and pressure of the net body and the printing stock are easy to control.

A transport target object is positioned more reliably at a predetermined position. A transport device includes a pair of rails extending parallel to each other in a horizontal direction, and transports the transport target object used in a production line on the pair of rails and positions the transport target object at a predetermined position. The transport device includes: a pressing member having an attraction portion configured to attract an attraction target portion of the transport target object on a surface orthogonal to an extending direction of the rails; a lifting and lowering portion configured to lift and lower the pressing member; a moving portion configured to move the pressing member in the extending direction of the pair of rails;a clamping section configured to clamp the transport target object on the pair of rails against the pair of rails; and a control section configured to control the raising and lowering section and the moving section so that the pressing member is lowered and the attraction portion of the pressing member is attracted to the attraction target portion of the transport target object, control the moving section so that the transport target object is transported to the predetermined position, and after controlling the clamping section so that the transport target object is clamped at the predetermined position, control the raising and lowering section and the moving section so that the pressing member is retracted from the transport target object.

The embodiment of the invention relates to the photovoltaic field, and provides a battery piece, a photovoltaic module and a glue printing screen printing plate, the battery piece comprises a substrate, the substrate comprises two edge areas arranged along a first direction and a central area located in the middle of the edge areas; the multiple rows of glue point structures are arranged in the first direction, each row of glue point structures comprises a plurality of glue points arranged at intervals in the second direction, and the glue points in each row of glue point structures are used for being in fixed contact with the same welding strip; wherein the total area of orthographic projections of all the glue points in each row of edge glue point structures on the surface of the substrate is larger than the total area of orthographic projections of all the glue points in each row of center glue point structures on the surface of the substrate, and in the first direction, the length of the glue points in the edge glue point structures is larger than or equal to the length of the glue points in the center glue point structures, and / or the length of the glue points in the center glue point structures is larger than or equal to the length of the glue points in the center glue point structures. In the second direction, the width of the glue points in the edge glue point structures is larger than or equal to the width of the glue points in the center glue point structure, and the reliability of the battery piece can be improved.