45results about How to "Guaranteed printing accuracy" patented technology

The feeding mechanism of the 3D printing device comprises a liquid adding box, a C-opening isolation cover is integrally formed on the inner wall of one side of the liquid adding box, the interior of the liquid adding box is divided into a cavity and a resin groove through the C-opening isolation cover, the resin groove is used for containing photosensitive resin, a bottom plate is fixed in the cavity, and the bottom plate is used for containing the photosensitive resin; a liquid storage box is installed at the top end of the bottom plate, and a multi-layer H-shaped liquid injection structure used for forming a plurality of feeding points at different heights is installed on the inner wall of the liquid adding box. The photosensitive resin liquid simultaneously enters the resin tank from different directions, uniform concentration distribution of the resin liquid in the whole resin tank is guaranteed, the curing effect in the printing process is improved, the resin liquid enters the resin tank in a multi-point supply mode, a light source can more effectively irradiate each feeding point, and the printing efficiency is improved. Therefore, a faster photocuring process is realized, and the phenomena of insufficient illumination and incomplete curing reaction in some areas are avoided.

The utility model relates to the technical field of printing, and discloses a pad printing silica gel head for digital jet printing and a pad printing system, the pad printing silica gel head for digital jet printing comprises a pad printing silica gel head, the bottom of the pad printing silica gel head is provided with a printing surface, and the interior of the pad printing silica gel head is provided with a cavity; the shaping mold is connected in the cavity and divides the cavity into an inner cavity and an outer cavity, and a shaping surface is arranged at the bottom of the shaping mold and is a plane or a flat arc surface; a first communicating hole for communicating the inner cavity with the outer cavity is formed in the shaping surface; the negative pressure structure is communicated with the inner cavity and is used for vacuumizing the cavity; the inflating structure is communicated with the inner cavity and is used for inflating the inner cavity; wherein the printing surface is provided with a shaping position which is adsorbed on the shaping surface when the negative pressure structure is vacuumized, and a separating position which is separated from the shaping surface when the inflating structure is inflated. According to the transfer printing silica gel head for digital jet printing, the printing surface is provided with the setting position and the separation position, the jet printing precision can be improved through the setting position, and a good printing effect can be obtained through the separation position.

The invention discloses a double-head carbon fiber printing device and a printing method, and belongs to the technical field of 3D printing, the double-head carbon fiber printing device comprises a rack, a working rotary table is fixedly mounted on the rack, two Y-axis sliding rail mechanisms are symmetrically arranged on the two sides of the working rotary table, an X-axis sliding rail mechanism is slidably connected between the two Y-axis sliding rail mechanisms, and two Z-axis sliding rail mechanisms are oppositely arranged on the two sides of the X-axis sliding rail mechanism; the two Z-axis sliding rail mechanisms are synchronously arranged on the X-axis sliding rail mechanism in a sliding mode, one Z-axis sliding rail mechanism is provided with the ultrasonic printing head, the other Z-axis sliding rail mechanism is connected with the laser printing head through the swing mechanism, the double-head design is adopted, the ultrasonic printing head and the laser printing head are integrated, parallel printing of multiple materials can be achieved, and the printing efficiency is improved. Compared with the prior art, carbon fibers and other base materials can be printed synchronously, flexible switching of multiple materials and multiple processes is achieved, the printing efficiency and precision are remarkably improved, meanwhile, switching of a single printing head does not need to be conducted frequently, path planning is more reasonable, and material waste is avoided.

The invention provides a method and system for producing false teeth by using 3D printing, and relates to the field of digital design and manufacturing, and the method comprises the following steps: obtaining a 3D false tooth model of the oral cavity of a patient, generating an optimal printing path through a 3D false tooth model path optimization algorithm, automatically generating a support structure according to the 3D false tooth model, the printing path and the structural characteristics of the 3D false tooth model, and carrying out 3D printing on the 3D false tooth model. A simulation model is established, temperature distribution, mechanical properties, a supporting effect and a printing path in the 3D printing process are simulated and analyzed, according to a simulation result, possible problems are predicted, the printing technology is optimized and adjusted to obtain optimized path planning data and adjusted printing parameters, and a machining scheme is formed. Therefore, precision improvement and performance optimization of false tooth production and automatic control of the production process are realized. In combination with closed-loop control of an intelligent feedback mechanism, not only is the product quality improved, but also the production efficiency is enhanced, the cost is reduced, and a new solution is provided for technical upgrading and industrial application in the false tooth production field.

The utility model discloses an accurate positioning printing device for a corrugated color box, and relates to the technical field of printing devices, the accurate positioning printing device comprises a rack, one end of the upper surface of the rack is movably provided with two movable arms through pin shafts, the two movable arms are arranged in parallel, and the top ends of the movable arms are movably provided with movable seats through pin shafts. According to the utility model, the two movable arms which are distributed in parallel are arranged above the rack, the movable seat is arranged at the top ends of the movable arms, the movable frame is arranged on one side of the movable seat, the pressing frame is arranged below the movable frame, and the transfer printing film and the pressing roller are arranged in the pressing frame; the movable arm can drive the movable seat and the movable frame to move, so that the pressing frame is pressed above a corrugated carton, printing operation can be completed through the pressing roller and the transfer printing film, the movable arm is matched with the movable seat, so that the movable frame and the pressing frame can press and print corrugated cartons of various specifications, and the application range of the device is widened.

The utility model discloses printing equipment and a printing system, relates to the technical field of solar cell manufacturing, and is used for solving the problem of relatively poor grid line printing efficiency. The printing equipment comprises a conveying mechanism, a printing mechanism and a printing mechanism, the multiple bearing tables are arranged on the conveying mechanism, can circularly move along the conveying path and are used for bearing the sheets; the sheet feeding mechanism comprises a plurality of sheet feeding units arranged side by side, and each sheet feeding unit is used for conveying one sheet to the corresponding bearing table; the multiple printing mechanisms are arranged side by side, each printing mechanism comprises a translation assembly and a printing assembly, the printing assemblies are arranged on the translation assemblies, and the translation assemblies are used for adjusting the printing assemblies to print the sheets in the direction parallel to the conveying path of the conveying mechanism at the printing mechanisms; and the sheet discharging mechanism is used for discharging the sheets on the bearing table.

The utility model discloses packaging box printing precision alignment equipment, which relates to the technical field of packaging box printing and comprises an equipment body, a printing mechanism is arranged in the equipment body, a feeding table is mounted on the equipment body in a sliding manner, a positioning plate is mounted on the feeding table in a sliding manner, a positioning groove is formed in the positioning plate, and a fixing plate is movably mounted in the positioning groove. A fixed screw is installed in the positioning plate in a threaded mode, the bottom end of the fixed screw is rotatably installed in the fixed plate, a rotating rod is rotatably installed on the T-shaped sliding block, the positioning screw is arranged below the feeding table, the outer wall of the positioning screw is sleeved with a thread sleeve, a movable block is installed on the thread sleeve, a connecting shaft is installed on the movable block, and the other end of the rotating rod is rotatably installed on the connecting shaft. And through the design of mechanisms such as the positioning screw rod, the movable block, the rotating rod, the positioning plate, the fixing screw rod, the fixing plate and the contact pad, the packaging box paperboard is prevented from inclining and moving during printing, and the printing precision is guaranteed.

The utility model discloses a three-dimensional printer convenient to carry, which relates to the technical field of three-dimensional printers and comprises a base, a printing platform is slidably arranged on the top surface of the base, a door-shaped frame is arranged in the middle of the base, threaded holes are formed in the bottom ends of the two sides of the door-shaped frame, and two insertion holes are formed in the two sides of the outer wall of the door-shaped frame. The printing platform is located between the inner walls of the door-shaped frame, a moving rod is slidably arranged on the side wall of the door-shaped frame, and an extruder is slidably arranged on the top face of the moving rod. Fixing blocks are fixedly connected to the two sides of the base. According to the door-shaped frame, when the door-shaped frame is dismantled, only the threaded rod needs to be rotationally dismantled, the inserting rod needs to be pulled out, then the door-shaped frame can be dismantled from the base, when the door-shaped frame is installed, reverse operation is carried out, the door-shaped frame is convenient and rapid to dismantle and install and convenient to carry, and when the door-shaped frame is in a storage state, the transverse door-shaped frame can be fixed through the inserting hole by the inserting rod. Parts are prevented from being damaged due to shaking of the door-shaped frame and the parts on the door-shaped frame when the device is carried, and the safety of the device is protected.

The present application provides a screen adjustment method, system, device, equipment and medium for photovoltaic modules, the system comprising: a screen frame with a silk screen area formed therein; a photosensitive adhesive arranged in the screen frame surrounding the silk screen area; a screen fixing device arranged between the photosensitive adhesive and the screen frame; the screen fixing device comprising a cushion block, a hydraulic regulator, a clamp and a height sensor, the cushion block, the hydraulic regulator and the clamp being adjustably arranged between the photosensitive adhesive and the screen frame in cooperation, the height sensor measuring the height information corresponding to the screen fixing device; a control device acquiring the height information measured by each height sensor and the position information of each screen fixing device; and also acquiring the frame size information corresponding to the screen frame; generating height adjustment information according to the frame size information, the height information and the position information corresponding to the screen fixing device, and adjusting the height of the corresponding screen fixing device according to the height adjustment information to ensure that the center of gravity of the screen frame remains stable during the silk screen printing process.

The invention relates to the technical field of resistor printing equipment, and particularly discloses a chip resistor MK layer UV printing curing process and device, the chip resistor MK layer UV printing curing device comprises a case and a support frame, the inner surface of the case is fixedly connected with a guide plate, the outer surface of the upper end of the guide plate is fixedly connected with a driving plate, and the upper side of the driving plate is provided with a wiping assembly. The substrate on the upper side of the supporting frame can be conveyed through circulating movement of the bracket, so that the flow process of substrate printing can be achieved, the printing precision can be effectively guaranteed while the printing processing efficiency is improved, meanwhile, the labor intensity of workers can be reduced to a certain extent by achieving automatic feeding, and the production efficiency is improved. And meanwhile, the slurry on the surface of the substrate can be scraped by the scraper, so that the slurry on the surface of the substrate is kept flat, the printing processing precision can be improved, and sequential printing of the chip resistors can be completed.

The invention relates to the technical field of chip packaging, in particular to a process and a product for solving poor infiltration of small-diameter salient points on the edge of an FCQFN product chip, and the process comprises the following steps: S1, manufacturing silk screens in one-to-one correspondence of salient points and pins according to a frame drawing and salient point mounting positions, and then printing a soldering flux on the surface of a frame by utilizing silk screen printing to obtain a preprocessed frame; s2, performing first reflow soldering treatment on the pre-treated framework to obtain a framework to be subjected to chip mounting; s3, mounting a chip on the frame to be subjected to chip mounting to obtain a mounted chip; and S4, performing second reflow soldering processing on the surface-mounted chip to complete reflow soldering of the salient points and the frame pins, and obtaining a finished FCQFN product chip. According to the method, the anti-oxidation layer on the surface of the frame is removed through printing scaling powder backflow, and then reflow soldering is performed after the chip is mounted, so that the phenomenon of poor soldering infiltration in the prior art is solved, and the yield and reliability of products are improved.

The utility model discloses a split type ball head fixing structure and a parallel arm, the ball head fixing structure comprises a connector, the connector is of a split type structure, the connector comprises a first connector and a second connector, an arc-shaped section for accommodating a ball head is formed between the first connector and the second connector, and the arc-shaped section is connected with the first connector and the second connector. A groove convenient for clamping the ball head is also formed between the first connector and the second connector; the parallel connection arm comprises a first connection arm and a second connection arm which are arranged in parallel, and the first connection arm and the second connection arm are connected through a second elastic piece; the utility model has the beneficial effects that the connector is designed into a split structure, so that the ball head can be conveniently arranged in the arc-shaped section, and does not need to be pressed into the arc-shaped section by using a jacking machine, and the assembly procedures are reduced.

The utility model discloses a braille printing device which comprises a machine frame, a first rotating shaft and a first driving device used for driving the first rotating shaft to rotate are arranged on the machine frame, a female die is arranged on the first rotating shaft, and a sliding block is further connected to the machine frame in a sliding mode. An adjusting device used for driving the sliding block to slide to be close to or away from the first rotating shaft is arranged between the sliding block and the rack, a second rotating shaft and a second driving device used for driving the second rotating shaft to rotate are arranged on the sliding block, and a male die capable of being matched with the female die is arranged on the second rotating shaft; the female die comprises a rotary drum and a plurality of concave points arranged on the outer surface of the rotary drum; the male die comprises an outer clamp and an inner clamp which are detachably connected together, and a plurality of marble needles clamped between the outer clamp and the inner clamp, and the front end parts of the marble needles extend out of the outer clamp so as to be matched with the corresponding concave points when the female die and the male die rotate. The utility model has the advantages of higher efficiency, accuracy, economy and universality.

The utility model relates to a back contact battery. The back contact cell includes: a silicon substrate; the first region and the second region are alternately arranged on the back surface of the silicon substrate; the first region comprises a first tunneling oxide layer, a first doped polycrystalline silicon layer, a back passivation layer and a first metal electrode; the second region comprises a second tunneling oxide layer, a second doped polycrystalline silicon layer, a back passivation layer and a second metal electrode; the isolation region is located between the first region and the second region; a first identification point and a second identification point are arranged on the back face of the silicon substrate, the second identification point wraps the first identification point or the first identification point wraps the second identification point, and the height difference D between the first identification point and the second identification point is larger than 0 and smaller than or equal to 3 micrometers. By arranging the first identification point and the second identification point with the height difference, effective and accurate identification is facilitated, a guarantee is provided for the printing precision of subsequent overprinting, and the yield of solar cells can be improved.

The invention discloses an ultrathin digital screen and a preparation method thereof, and relates to the technical field of digital screens, and the preparation method comprises the following steps: S1, fixing a plurality of bearing sheets on the back surface of a flexible circuit jointed board to obtain a first combined circuit jointed board; s2, the first combined circuit jointed board is attached to a tray, soldering paste printing, multiple light-emitting component pasting and reflow soldering are sequentially carried out, and a second combined circuit jointed board is obtained; s3, a plurality of reflection cavities are formed in the face, where the light-emitting components are attached, of the second combined circuit jointed board, and a first assembled jointed board is obtained; s4, pasting a plurality of diaphragms on the surfaces of the plurality of reflection cavities of the first assembled jointed board to obtain a second assembled jointed board; and S5, separating a plurality of ultrathin digital screens from the second group of jointed boards. According to the invention, the ultrathin digital screen is produced and manufactured in a jointed board form, so that the production efficiency can be effectively improved; and the bearing sheet is correspondingly fixed on the back surface of the flexible circuit single board, so that the production quality of the ultrathin digital screen can be ensured.

The utility model provides a kind of 3D printer self-adapting adjustment transmission mechanism and 3D printer, by setting temperature compensation mechanism to first synchronous belt and second synchronous belt, and setting lubricating mechanism to the guide rail where each slider is, so that the 3D printer self-adapting adjustment transmission mechanism and 3D printer of the application can adapt to the change of different environment, while guaranteeing printing precision in control range, to improve the stability of printing precision, reduce the printing process affected by environment printing defective rate. At the same time, the 3D printer self-adapting adjustment transmission mechanism and 3D printer of the application do not need to configure shell to close the entire printing equipment, and obtain relatively constant printing environment by adjusting temperature and humidity in the shell, so as to also reduce manufacturing cost.

The utility model relates to the field of 3D printing, and discloses a multicolor printing head for a 3D printer, which comprises a shell (1) and a printing nozzle (2) mounted on the shell (1), a consumable channel is arranged in the shell (1) and comprises a plurality of branch channels (3) and a main channel (4), the branch channels (3) are communicated with the main channel (4), and the main channel (4) is communicated with the shell (1). And the other end of the main channel (4) is connected with the printing nozzle (2) and conveys printing supplies to the printing nozzle (2). Through the design of multi-channel switching, each channel is independently connected with one color material, automatic switching of at most 12 colors is supported, single-nozzle output is matched, the structure of the printing head is simplified, complexity of a multi-nozzle scheme is avoided, and meanwhile printing precision is ensured; in addition, the cutter part can accurately cut off the current material, the problems of trailing and blocking are avoided, and the switching efficiency is improved.

The present application relates to a device for adjusting an electric fluid nozzle before installation, comprising: an adjustment module, which includes an adjustment seat, a clamping assembly and an adjustment drive, the clamping assembly is used to clamp the needle body of the electric fluid nozzle, and the adjustment drive drives the adjustment seat to move in the first direction; an imaging module, which includes an imaging component, the imaging direction of the imaging component is set along the second direction, the imaging component is used to image the needle body, and the field of view of the imaging component includes a calibration point; a positioning module, which includes a positioning component, the positioning component includes a first reference surface, and the first reference surface is suitable for the first positioning surface of the mounting part of the electric fluid nozzle to abut. The present application uses the adjustment module to drive the tip of the needle body to move to the calibration point within the field of view of the imaging component, and then moves the mounting part to abut against the positioning component to complete the adjustment of the electric fluid nozzle. That is, the distance from the ejection point of multiple electric fluid nozzles to the positioning surface is consistent, ensuring that multiple electric fluid nozzles can be assembled to the ejection point with the same height, ensuring the printing accuracy.

The utility model relates to the technical field of corrugated carton production, in particular to printing equipment convenient for automatic feeding, which comprises a support frame, a conveying device is fixedly mounted on the inner wall of the support frame, a lifting component is fixedly mounted on one side of the support frame, and a distributing component, a limiting component and a printing equipment body are fixedly mounted at the top of the support frame. The lifting assembly comprises a first fixing plate fixedly installed on one side of the supporting frame, and a first hydraulic push rod is fixedly installed at the top of the first fixing plate. According to the improved printing equipment, the conveying device, the lifting assembly and the baffle are adopted, when the printing equipment works, automatic feeding is facilitated, and the use convenience of the printing equipment can be improved; and a second hydraulic push rod, a second push plate and a limiting assembly are adopted, so that when the printing equipment works, the corrugated carton can be corrected and limited, and the subsequent printing precision of the printing equipment body on the corrugated carton can be guaranteed.

The invention provides a screen adjusting method, system, device and equipment for a photovoltaic module and a medium, and the system comprises a screen frame which is internally provided with a screen printing area; the photo-sensitive adhesive is arranged in the screen printing plate frame and surrounds the screen printing area; the screen fixing device is arranged between the photo-sensitive adhesive and the screen frame; the screen fixing device comprises a cushion block, a hydraulic regulator, a clamp and a height sensor, the cushion block, the hydraulic regulator and the clamp are matched and adjustably arranged between the photo-sensitive adhesive and the screen frame, and the height sensor measures height information corresponding to the screen fixing device; the control equipment obtains height information measured by each height sensor and position information set by each screen fixing device; frame size information corresponding to the screen frame is also obtained; height adjusting information is generated according to the frame size information and the height information and the position information corresponding to the screen fixing device, the height of the corresponding screen fixing device is adjusted according to the height adjusting information, and it is ensured that the gravity center of the screen frame is kept stable in the screen printing process.

A printing trolley is driven by a linear motor with double cross beams and mover plates at the same time, on the premise that the number of nozzles exceeds 100, through mover plate driving, on one hand, large enough driving force is provided, and on the other hand, the two mover plates are controlled in parallel, so that the printing efficiency is improved. Synchronous driving of the two mover plates can be guaranteed, driving force is kept synchronous, meanwhile, accurate control is achieved, and printing stability and precision are effectively guaranteed; a mover on the mover plate adopts a multi-mover structure, and a plurality of movers can provide larger driving thrust for the printing trolley; meanwhile, the distance L1 between the heads of the adjacent mover plates is integer multiples of the length L2 of the stator plates, so that the thrust directions provided between the movers are consistent, and opposite thrust generated between the movers can be overcome; furthermore, the linear motor is located above the cross beam, the structure is simple, the installation precision can be easily guaranteed, and the thrust is increased; under the huge weight of the printing trolley, the running stability of the printing trolley can be improved; the first sliding rail located at the top of the cross beam can increase bearing capacity, and the first sliding rail located on the side face can improve operation precision.

The utility model discloses a silk screen film positioning and laminating device which comprises a workbench, a laminating unit is arranged in the middle of the rear end of the upper surface of the workbench, the laminating unit is composed of two sliding rods, a lifting frame, a fixing plate, an electric telescopic rod and a silk screen frame, and the sliding rods are arranged in the middle of the rear end of the upper surface of the workbench in a bilateral symmetry mode. A fixing plate is welded to the top ends of the sliding rods, an electric telescopic rod is fixedly installed in the middle of the fixing plate, the telescopic end of the electric telescopic rod is fixedly connected with a lifting frame installed on the sliding rods in a sliding mode, a silk screen frame is fixedly installed at the front end of the lifting frame, and a backing material frame is arranged under the silk screen frame. The silk-screen film positioning and laminating device has the advantages of high efficiency, accuracy and automation, the production efficiency is greatly improved, meanwhile, errors possibly caused by manual operation are reduced, and the product quality and the printing accuracy are guaranteed.

This utility model relates to a 3D printing device suitable for large-size printed parts, belonging to the technical field of 3D printing equipment. It includes a support frame, a printing assembly, a track, and a forming platform. The printing assembly includes a bracket and a sand-laying device and an inkjet printing device mounted on the bracket. The support frame has a built-in lifting drive mechanism, whose drive end is connected to the bracket to drive the bracket to move up and down. The track is located below the printing assembly. The forming platform is movably mounted on the track. This utility model replaces the previous gradually descending forming cylinder technology with a technology that controls the printing assembly to rise gradually through a lifting drive mechanism. During the printing process, the forming platform is only responsible for bearing the continuously increasing weight of the material layer. Therefore, the lifting drive mechanism does not experience the situation of continuously increasing force as the printing process progresses, as in traditional technologies. This allows for more precise control of the printing thickness and accuracy. Furthermore, unlike the high requirements of forming cylinder structure manufacturing, it effectively saves manufacturing costs.

This invention discloses an electron gun, comprising a cooling assembly and a cathode assembly. The cooling assembly includes a bottle, silicone oil, and a liquid cooling pipe. The bottle has a receiving cavity in which the silicone oil is contained. The liquid cooling pipe is disposed on the bottle and located within the receiving cavity, and the liquid cooling pipe cools the silicone oil. The cathode assembly includes a cathode cup and a filament. The filament is disposed in the cathode cup, which is connected to the bottle. The cooling assembly of this invention utilizes the liquid cooling pipe to lower the temperature of the silicone oil, thereby lowering the temperature of the bottle. Because the cathode cup in the cathode assembly is connected to the bottle, it indirectly cools the cathode cup, ultimately effectively controlling the temperature of the filament disposed in the cathode cup. This prevents the filament from overheating and deforming, ensuring the printing accuracy of the electron gun and the lifespan of the filament.

The utility model relates to the technical field of laser printing, in particular to a high-precision laser printer. According to the technical scheme, the device comprises a workbench, a lead screw body and a supporting frame, a limiting plate is installed on the outer wall of the upper end of the workbench, the lead screw body is arranged in a fixing block, a connecting block is arranged on the outer wall of one side of the lead screw body, and a connecting plate is installed on the outer wall of one side of the connecting block; a supporting frame is installed on one side of the outer wall of the lower end of the workbench, an electric push rod is installed in the supporting frame, a motor body is installed on the outer wall of the upper end of the electric push rod, a photoelectric sensor is arranged on the outer wall of the upper end of the motor body, and a baffle is installed on the outer wall of the upper end of the photoelectric sensor. And the effect of cleaning foreign matter at the upper end of the workbench is achieved, the levelness of the workpiece is prevented from being affected, and therefore the printing precision of the laser printing equipment on the workpiece is guaranteed.

The invention discloses a printing control method and system for a medical part through a 3D printer. The method comprises the steps that a to-be-printed three-dimensional model is constructed according to three-dimensional models of an abnormal part and the medical part; and building a printing information set based on the to-be-printed three-dimensional model, defining a corresponding printing mode based on the printing information set and the 3D printer, and triggering three-dimensional printing of the medical part along the printing mode. In the three-dimensional printing of the medical part, a deformation area is defined according to the real-time image of the medical part and the virtual printing image of the medical part; the deformation factors are defined based on the positioning detection of the deformation area, and the optimized printing program is constructed according to the deformation factors and the corresponding printing program, so that the accuracy of the optimized printing program is ensured, and meanwhile, the accuracy of the optimized printing program is improved. And on the basis of matching of the optimized printing program and the printing program of the 3D printer, autonomous updating of the printing program of the 3D printer is triggered, the printing precision of the medical part is guaranteed, and multi-dimensional control over the medical part is achieved.