Device for applying a pattern on the product
(57) Abstract:Usage: for drawing a pattern on a product stream of abrasive material. The inventive device includes a base with a conveyor for the plates which are installed clamps for fixing the product. The latch mask stencil is made in the form of a carriage with a rack fixed on the rod with an electromagnet and a shank for mounting the mask or stencil. The carriage is moved by a pneumatic cylinder and return spring. on the rack adjustably mounted plate with an electromagnet and a screen with nozzles communicated with the supply jet of abrasive material. The plate is vertically moved by a pneumatic cylinder and return spring. The mask is a stencil made of a ferromagnetic material and is placed between the electromagnet and the product, on the other hand which also has an electromagnet. The electromagnets are connected with the possibility of changing the direction of the magnetic field lines. In the working position of the mask stencil under the action of the magnetic field is closely attached to the surface of the product, and changing the direction of the magnetic lines after application of the pattern departs from the product. 1 C.p. f-crystals, 5 Il.
broad application in sand drawing a pattern on the glass, mirrors and products.A device for applying a pattern on a sheet article containing the stencil, the support plate and clamps for installation of it products and stencil .However, the known device does not provide a high quality pattern caused by the jet of abrasive material, and has a limited service life.These drawbacks are due to the fact that the hard stencil loosely attached to the product, and the resulting gaps penetrate the abrasive particles, the resulting pattern is blurry at the edges.In Fig. 1 shows a diagram of the device in side view; Fig.2 - the same, top view; Fig.3 - node I in Fig.1 (installation template mask and electromagnet), and Fig.4 is a view along arrow b of Fig.1 (lever with tooth unilateral action of the drive unit of Fig.5 - section a-a in Fig.4.The device consists of a base 1, on which the bearings 2 mounted plate conveyor 3. On the plate 4 of the fixed conveyor grippers 5 for fixing of bulk products.The edges of the plates of the conveyor on the one hand made the grooves 6.Perpendicular to the axis of the conveyor on the basis of posted by transverse rails 7, in which the mouth is oterom installed the electromagnet 12, and before him mask stencil 13 with guide sleeve 14, loosely mounted on the shank 15 of the rod can move relative to it.Stand on the guides 16 are installed with possibility of vertical movement of the plate 17, and it fixed the electromagnet 18 and the screen 19 with spaced around the circumference of the nozzles 20 connected to a source of supply of air and abrasive material (not shown) for sandblasting unprotected mask stencil surface.The electromagnet 18 is located on the plate so that its working surface is at a minimum distance from the inner surface of the walls of the product.Both of the electromagnet 12 and 18 connected with the possibility of changing the direction of the magnetic field.The carriage is connected with placed under the base of the cylinder 21 with the return spring 22 and one of the shoulders 23 of the two shoulders of the lever mounted on the base on an axis 24. The second shoulder 25 provided with a hinged spring-loaded tooth 26 unilateral steps to log into the slots of the plates of the lower branch of the conveyor for step motion.On the vertical rack carriage fixed p the response.The stencil mask is made in the form of a thin stamped sheet metal (0.1-0.15 mm) of a ferromagnetic material, and from your side, it caused the wear resistant carbon coating.When the pneumatic system and the power cylinders 21 and 27, overcoming the resistance of the springs 22 and 28, placing the plate 17 with the electromagnet 18 upwards, and then the carriage 9 with the electromagnet 12 is at the off position. At this hour 10 clicks on the shoulder 23 of the lever and turn mounted on the axis of the two shoulders 24 of the lever. The second arm 25 of the lever first selects the free running in order to bring the carriage with the electromagnet 12 and the shank 15 of the rod 11 from the working area, and then a spring-loaded tooth 26 of the shoulder 25 is included in the groove 6 of the plate 4 of the conveyor 3 and moves it installed in the capture of 5 product at the working position.Thereafter, the shank 15 of the rod sleeve 14 set the mask stencil 13, in which the result of the action of the magnetic force of the electromagnet 12 and ferromagnetic properties of its material is moved along the shank 15 and adjacent to the surface of electromagnet 12. After that relieve pressure in the pneumatic cylinders 21 and 27, under the action of return springs 22 and 28, the plate 17 standpipe shall ulozhenie, while the shanks 15 are placed with a gap of 2.0-2.5 mm from the wall of the workpiece.Mask stencil 13 magnetic field is moved to the product and tightly to him. This also contributes to the magnetic field generated by the electromagnet 18.After that, the nozzle 20 of the screen 19 is fed a stream of abrasive material, which handles unprotected mask stencil surface. At the end of the treatment process is similar to that described at the beginning of the operation.The operation of pneumatic cylinders, solenoids, nozzles and conveyor can be carried out by the microprocessor according to a given program, providing semi-automatic or automatic operation.The application of the proposed device in the process of drawing a pattern on the glass surfaces allows to mechanize the work, to ensure the process is isolated from the working space with high quality drawing pattern using a stencil mask. 1. DEVICE FOR APPLYING a PATTERN ON a PRODUCT containing base mounted stencil, support and clamps for installation of products and stencil, characterized in that it has Montero imennyh on the plate conveyor grippers, and the latch stencil are installed on a support with the possibility of lateral movement relative to the longitudinal axis of the conveyor vertical rack with at least one cantilever horizontally positioned rod at the free end which can move along it has the stencil, and a plate mounted on the rack with the possibility of vertical movement, with the end plates and the horizontal rod installed with clearances, respectively, for placement of the stencil and wall of workpiece electromagnets connected with the possibility of moving the magnetic field direction, and the stencil is made in the form of a mask of the at least one wear-resistant and ferromagnetism layer of material.2. The device under item 1, characterized in that it has a drive rack and rod, made in the form of pneumatic cylinders, and the conveyor drive, made in the form of two shoulders of the lever, one arm of which is connected with a rack, and the second has a hook unilateral action, which is performed on each plate conveyor groove.
FIELD: technology for producing thermo-sensitive material for stencil printing forms, engineering of device for producing said material, engineering of stencil printing machines.
SUBSTANCE: material for printing forms is made only from film of thermo-plastic resin by usage of polyether film in such a way, that aperture, through which paint may permeate, can be thermally perforated without increasing power of thermo-printing head. Film is a thermo-sensitive material for stencil printing forms 12, having given thickness, and consists of stretched mylar film or stretched film with low melting point, produced by copolymerization of polyethylene therephthalate and polybutylene therephthalate. A set of smallest raster cells 14 is formed on one side of film by transfer of template. Transfer of template may be performed under working pressure 104·102(m-t)/(m-g) Pascals or higher, when working temperature is t°C, melting point temperature of film is m(°C), and temperature of film vitrifying is g(°C).
EFFECT: decreased power of thermo-printing head, facilitated operations with film.
7 cl, 13 dwg, 1 tbl
FIELD: technological processes.
SUBSTANCE: invention is related to galvanoplastics. Matrix for galvanoplastics of printing screens includes matrix plate, on which metal is deposited for moulding of printing screen. Matrix plate includes the main surface of deposition, on which metal deposited to create the main body of printing screen, at least one pair of edge segments at the opposite borders of the main deposition surface, which include edge segments of deposition, which come out from plane produced by the main deposition surface, on which metal is deposited to create fastening elements of printing screen, and angular sections in appropriate angles of deposition surface. Matrix also includes non-conducting elements in the form of edge elements, which are located at edge sections so that they create length of these edge sections, and non-conducting elements in the form of angular elements, which are located near angle sections so that they protect them and create length of the main deposition surface near these angular sections.
EFFECT: expansion of assortment of produced items.
67 cl, 37 dwg
SUBSTANCE: invention relates to stencil master for use in printing conductive paste for simultaneous generation of bus electrode and a plurality of finger electrodes on solar element. Said stencil master includes an opening for bus electrode and multiple openings for finger electrodes, and the hole widths for finger electrodes is less than 80 mcm, and the stencil master has multiple blocked zones in the hole for bus electrode, formed only in positions aligned with holes for finger electrodes.
EFFECT: use of this stencil master for stencil screen printing method allows to cut the cost of solar cells, to protect connection between the bus electrode and a finger electrode against damage causing no increase of loss because of solar cells shadowing or loss of its aesthetic quality, and to make high-reliable solar cells of high capacity.
7 cl, 13 dwg, 1 tbl