1011results about "Screen printing" patented technology

The invention discloses a full-automatic high-precision double-printing-platform screen printing machine. The full-automatic high-precision double-printing-platform screen printing machine comprises a machine frame, material conveying mechanism, a screen printing plate mounting and alignment mechanism and a screen printing mechanism and further comprises a double-printing-platform transfer assembly located on the machine frame, wherein the material conveying mechanism is located on the machine frame; the double-printing-platform transfer assembly comprises a positioning position, a printing position, a lifting printing platform and a printing platform, the lifting printing platform and the printing platform are located in the positioning position or the printing position alternately and switched between the positioning position or the printing position; the material conveying mechanism is used for conveying to-be-printed materials to the positioning position; and the screen printing plate mounting and alignment mechanism and the screen printing mechanism are arranged above the printing position for printing the to-be-printed materials located in the printing position. By means of the full-automatic high-precision double-printing-platform screen printing machine, while one to-be-printed material is printed, another to-be-printed material is automatically fed onto the printing platform and photographed and positioned, and the technical problems that most of existing full-automatic flexible-plate screen printing machine adopts single-platform linear material conveying, and consequently the system efficiency is low are solved.

The printing machine comprises at least one transfer system (5) for conveying a substrate (1) onto an impression cylinder (6) and at least one screen (7, 8) of cylindrical or flat shape, with a doctor blade, said screen collaborating with the impression cylinder (6) and intended to print the substrate with an ink containing pigments that can be orientated by a magnetic field and an unloading system (9) for carrying the substrate (1) away. The impression cylinder comprises at least one magnetic element on its impression surface, said magnetic element being positioned at a point corresponding to said impression performed by said screen (7, 8) on said substrate.

An electronic device is provided. The electronic device includes a foldable housing. The foldable housing includes a first housing including a first display and an illuminance sensor on a front surface, and a second housing, adjacent to the first housing, including a hole formed through a front surface and a rear surface of the second housing. The front surface of the first housing faces the front surface of the second housing when the second housing is folded in a first direction with respect to the first housing, and a rear surface of the first housing faces the rear surface of the second housing when the second housing is folded in a second direction with respect to the first housing.

Disclosed is a print technology in which a solder pool staying on the surface of a mask is driven by means of a squeegee, and solder is applied onto a substrate onto which the lower surface of a mask is placed. A forward print process where solder is applied by driving a squeegee in a predetermined forward direction relative to a mask, and a backward print process where the solder is applied by driving the squeegee in a returning direction opposite to the forward direction are switched alternately. When the squeegee passes through the solder pool on the downstream side in a moving direction before switching in the course of switching from any one of the forward and backward print processes to the other one of these processes, the amount of solder in the solder pool is measured. Based on the amount of solder thus measured, the necessity of replenishing solder is determined The solder pool is supplemented with solder, based on the result of the decision on whether solder replenishment is required.

Multicolor image, formed from at least two component images, are printed on non-planar surfaces of edible pieces by maintaining registration of the pieces from one printing station to another. The registration is maintained by firmly securing the pieces to the transporting surface by applying a pressure differential, by a combination of a pressure differential with a resilient surface, or by trapping the pieces between a retaining member and a recess portion.

A stencil printer for depositing solder paste onto an electronic substrate includes a frame and a stencil coupled to the frame. A dispenser is coupled to the frame, with the dispenser and the stencil being configured to deposit solder paste onto the plurality of pads of the electronic substrate. An imaging system is configured to capture images of regions of interest of at least one of the electronic substrate and the stencil. The stencil printer further includes a controller coupled to the imaging system, with the controller being configured to control movement of the imaging system to capture images of regions of interest of at least one of the electronic substrate and the stencil extending generally along a first axis before moving the imaging system in another direction. A method for dispensing material on a substrate is further disclosed.

The invention relates to a solar net plate, in particular to a polyimide solar net plate. The polyimide solar net plate comprises a net frame and a polyester wire net. The polyester wire net is tied to the bottom of the net frame. A silk screen printing hole is formed in the center of the polyester wire net, and the polyester wire net is in a concentric square shape. A stainless steel wire net anda polyimide film are further included. The polyimide film is fixed to the bottom face of the stainless steel wire net. A high-temperature glue layer is arranged between the polyimide film and the stainless steel wire net. The polyimide film is provided with a plurality of wire grooves, and a printing pattern is composed of the wire grooves. The top face of the stainless steel wire net is fixed tothe polyester wire net. The stainless steel wire net is larger than the silk screen printing hole and covers the silk screen printing hole, and a hot melt glue layer is arranged between the stainlesssteel wire net and the polyester wire net. The net plate manufacturing technology is simple, the manufacturing cost is low, the yield is high, the service life of the net plate is long, and frictionresistance and cross section sharpness are obviously improved; and the service life reaches 100,000 times or more, and the purchasing cost of printing net plates is reduced for battery piece manufacturers.

A stencil printer is provided for depositing solder paste onto a surface of an electronic substrate. The stencil printer includes a frame and a stencil coupled to the frame. The stencil has a plurality of apertures formed therein. The stencil printer further includes a dispenser coupled to the frame. The stencil and the dispenser are adapted to deposit solder paste onto the electronic substrate. The stencil printer further includes an imaging system constructed and arranged to capture an image of the electronic substrate. The imaging system includes a camera assembly, an on-axis illumination assembly adapted to generate light substantially along a first axis generally perpendicular to the surface of the electronic substrate, and an off-axis illumination assembly adapted to generate rays of light substantially along a second axis extending at an angle with respect to the first axis. A controller is coupled to the imaging system to control movement of the imaging system to capture an image.

The invention provides a PCB circuit board printing process and a production line thereof, comprising: the step 1 of printing the side A of a circuit board using a mixed ink; the step 2 of drying theside A by using a UV lamp; the step 3 of flipping the circuit board; the step 4 of printing the side B of the circuit board using the mixed ink; the step 5 of drying the side B using the UV lamp; andthe step 6 of drying the sides A and B using a dryer. The invention includes circuit board printers, a flipper and a dryer, wherein there are two circuit board printers; the flipper is arranged between the two circuit board printers; and the dryer is set on the back end of the second circuit board printer. The printing process is to dry the surface of one side of the printed circuit board, and start the printing on the other side for surface drying then, and both sides are put into the dryer for drying after the surfaces are dried with the surface drying time of only 5-8 seconds. Moreover, theentire printing process costs 30-40 minutes, which is half the original time.

The invention discloses a screen printer machine capable of improving printing and dyeing effect. The screen printer machine comprises a box body, the inner wall of the box body is fixedly connected with first hydraulic rods, the top ends of the two first hydraulic rods are fixedly connected with an electricalmotor box and a fixed box correspondingly, and sliding blocks are fixedly connected to one side of the motor box and one side of the fixed box; sliding rails are slidably connected to the surfaces of the sliding blocks, the surfaces of the sliding rails are fixedly connected with the inner wall of the box body, and a sliding rod is fixedly connected between the surface of the electrical motor box and thefixed box; and theelectrical motor is fixedly connected to the inner wall of the electrical motor box. The invention relates to the technical field of screen printer machines. The screen printer machine capable of improving the printing and dyeing effect has the capability of rapidand accurate printing and dyeing, the printing and dyeing screen cleaning capacity is improved, and the printing and dyeing screen is convenient to install and dismount;and the printing and dyeing machine has the capability of automatically sensing and controlling the printing and dyeing pressure in the printing and dyeing process, the condition that printing and dyeing are not sufficient and theprinting and dyeing screen plate is pressed is avoided, and the printing and dyeing quality and effect are greatly improved.

The invention relates to a palette for supporting articles such as CDs, DVDs or the like, which is adapted to be guided forward on a conveyor path (2) on a device according to any of the proceeding claims, which comprises a wheel (44) or the like arranged to interact with a rail (3) along the conveyor path (2); a first pin (41) arranged to engage with a first driving element (22) on a first driving device (20) to drive the palette (4) forward along the rail (3) of the conveyor path (2); a second pin (42, 42′) arranged to engage with a second driving element (32, 32′) on a second driving device (30, 30′). The engagement of the first pin (41) with the first driving element (22) includes an allowance, which by means of the engagement between the second driving element (32, 32′) on the second driving device (30, 30′) allows the palette (4) to be displaced in respect of the first driving element (22), such that the palette may be driven forward by the second driving element (32, 32′) within said allowance. The invention relates also to a device for processing of articles, wherein the articles are guided forward on such a palette.

A screen printing method and a printing device thereof are revealed. The printing device consists of a printing table, a screen and a printing head. The printing head includes at least one driving member that moves upward and downward so as to drive at least one squeegee moving upward and downward. By precise control of relative distance between the screen and a printed substrate on a surface of the printing table, the squeegee applies a constant pressure to the screen for printing under the condition that the screen doesn't contact with the printed substrate. As to the printed substrate made from fragile and compact materials such as silicon wafer, the thickness and evenness of the ink are precisely controlled.

A method is provided for automatically and sequentially loading objects onto a feed system, each having a respective axis of rotation and respective first and second indices of rotation about the respective axes. The loading of each object onto the feed system causes an orientation in a predetermined relative position. The method consists in particular in selectively operating a relative rotation of the object and of the handling device about their axis of rotation to achieve the orientation.

An ink residue lifting and transfer mechanism is provided on a printing mechanism of a screen printing machine to pneumatically horizontally drive an ink reclaiming blade, so that the ink reclaiming blade is in complete contact with a scraper of the printing mechanism to hold ink residue after one printing in a space contained between the closely contacted scraper and the ink reclaiming blade, preventing the ink residue from dripping off from the scraper to the screen plate to smudge the printed object in the course of ink reclaiming. And, the ink residue is lifted and transferred by the closely contacted scraper and ink reclaiming blade to an initial position for reuse in the next printing without being wasted. Therefore, an improved accuracy of printing can be achieved at reduced cost.

The invention discloses a bearing device of a silk screen. The bearing device of the silk screen comprises the silk screen, a bearing mechanism and a tensioning mechanism, wherein the bearing mechanism is pressed to the periphery of the silk screen; the tensioning mechanism is used for fixing the bearing mechanism and tensioning the silk screen, and comprises a plurality of framework elements andsecond connection corner pieces; a movable rod is arranged in each framework element, and the upper end of each movable rod is used for clamping the bearing mechanism; one side of the lower end of each movable rod is provided with a first pressure device for tensioning the silk screen; the other side of the lower end of each movable rod is provided with a second pressure device for releasing the silk screen; lifting rods and pressing blocks connected with the lifting rods and used for clamping the bearing mechanism are arranged in the second connection corner pieces; the tensioning mechanism further comprises a first gas flow channel and a second gas flow channel penetrating the framework elements and the second connection corner pieces; the first gas flow channel is used for driving the lifting rods to vertically ascend; and the second gas flow channel is used for driving the second pressure devices to generate second pressure. According to the bearing device of the silk screen, the silk screen is easy to move and store, and the silk screen is convenient to replace.

A pressing mechanism that presses a dam member 30 against a screen mask 12 has a guide shaft 32 that guides a direction of movement of the dam member 30 during pressing operation and a compression spring 33 that forces the dam member 30 in an axial direction of the guide shaft 32. A printing pressure value at which the dam member 30 is pressed against the screen mask 12 is made stable, to thus make stable an effect of preventing effluence of the paste to the outside of a print width on the screen mask 12.

A method of detecting the alignment of a substrate during a sequence of printing steps, comprises detecting in a detection unit a position of at least one printing track that forms a printed pattern onto a surface of the substrate in a first printing station, determining a reference point in at least a portion of the printing track, comparing the actual position of the reference point with an expected or previously detected position of the reference point, determining an offset between the actual position and the expected or previously detected position of the reference point, adjusting the reciprocal position between the printing head of a second printing station and the substrate to account for the determined offset, and then printing a second pattern over the first pattern.