Device for the formation of a pattern on a flat product
(57) Abstract:Usage: for the application of the pattern on the glass stream of abrasive material through the stencil and is aimed at improving product quality, usability and productivity. The device comprises a support plate mounted on it with a magnet, a plate of ferromagnetic material and mounted on the support pins of the flat product, located against the electromagnet and the ferromagnetic plate. On the base plate on an axis that is held in working position by a spring arm fixed square plate with a framework on which the retaining pins fixed stencils with Windows for the application of the pattern. Each stencil is made of a multilayer. The outer layers are made of resistant abrasive material, and the inner one as inextensible Mylar nonwoven material, and the other in the form of a ferromagnetic material, such as foil. 9 C.p. f-crystals, 5 Il. The invention relates to installations for the application of the pattern on the sheet product stream of abrasive material through the open stencil and can be used for drawing patterns on sheets of glass or mirrors.A device for the CLASS="ptx2">A disadvantage of the known device is the low quality of the pattern due to its blur the contour.This is due to the fact that the stencil is made of rigid material, does not provide a snug fit its edges along the contour of the window pattern to the surface of the product.The aim of the invention is to improve the quality generated from the product of the pattern due to the tight fit thereto edges of the window stencil regardless of the life of the device. Another goal is to increase the service life of the stencil, as well as increasing comfort and productivity.This objective is achieved in that the device for formation of a pattern on a flat product stream of abrasive material containing the stencil with Windows corresponding to the circuit pattern, and a base plate with clamps for installation of sheet products and stencil in the base plate under the product installed plate of a ferromagnetic material, under which the base plate is mounted a tool for guidance in ferromagnetic plate of the magnetic field, and the stencil is placed a layer of ferromagnetic material. Each stencil is installed in a fixed rotary on Osnova in the working position. The layer of ferromagnetic material placed between layers of the stencil. Means for creating a magnetic field in the form of an electromagnet. Means for creating a magnetic field can be made in the form of a set of permanent magnets. One of the layers of the stencil is made of polymer and the other of the pet nonwoven fabric, a polymer layer is metallized ferromagnetic material. The outer layers of the stencil is made of a polymeric material, such as PVC film, and the inside of the Mylar paper, and the outer surface of one of the polymer layers are metallized ferromagnetic material. One of the layers of the stencil is made of polymer film, and the other foil of ferromagnetic material. Stencils are equipped with beacons to combine their drawings made at least two matching holes located on opposite edges of the drawing pattern.The combination set forth the essential features allows you to get high-quality patterns, to extend the life of the device and increase convenience.Significant new features in similar devices not found, which could indicate compliance created t device for formation of a pattern on a flat product, front view of Fig.2 - section a-a in Fig.1 (arm twist beam frame); Fig.3 - stencil, top view; Fig.4 - section b-B in Fig. 3; Fig.5 - section b-b of Fig.1 (mounting frame beam of the frame and installation of the stencil).Device for the formation of a pattern on a flat product stream of abrasive material consists of a base plate 1 and the stencil 2.The base plate is made in the form of horizontal boards with window 3, which is fixed to the plate 4 is made of ferromagnetic material. From the bottom of the window and with one of its sides secured the support pins 5 for flat products (glass) 6 mounted on the surface of the support plate and with a gap 7 0.5 - 1 mm above the ferromagnetic plate.On the one side of the Board is formed through the Central 8 and 9 radial holes. Under the Board on the brackets 10 is an electromagnet 11 for guidance in the plate 4 of the magnetic field. In an embodiment, the means for guidance in ferromagnetic plate of the magnetic field made in the form of annular permanent magnets 12 mounted from the rear side of the said plate.On the base plate in its Central hole is set to axis 13 and a handle 14 on the front end and HVO is On the axis of the fixed square plate 18 with locking tenon 19, within one of the radial holes of the base plate, and flanging 20 with a longitudinal hole 21, in which the bolts 22 secured to the frame 23 of the radial carcass.Longitudinal holes are used for mounting surface of the frame, which adjoins the stencil in the same plane with the surface of the product during their variable thickness.Each beam frame, which depending on the complexity of the drawing may be from three to six, made in the form of a rectangular frame of angle profile with vertical shelves on the outer contour.On the horizontal shelves secured the locking pins 24 for the installation of the stencil 2, fixed on them quick washers 25.The stencil is made of several still interconnected, for example by means of a polymeric adhesive layers.The outer layers 26 made of resistant abrasive material, such as PVC film, and the middle is one of the inextensible 27 material, such as Mylar nonwoven material, and the other in the form of foil 28 of ferromagnetic material.At all layers of the stencil cut or punched window 29 for processing through the product stream abrasi the La precise alignment of Windows of different stencils.Variants of the foil can be fixed in the formation area of the Windows on the outer surface polihlorvinilovogo material or its surface may be metallized layer 32.The device is used as follows.On screen 3 of the base plate 1 mounted on its rear side electromagnet 11 sets with relatively small it gap (0.25 - 0.5 mm) plate 4 is made of ferromagnetic material, and the plate on the supporting pins 5 to the glass sheet (product) for application to pattern. The base plate is set at an acute angle (25 - 30about) to the vertical. Then the operator sets on the locking pins 24 of part 23 of the radial carcass holes 30 stencils 2 with the corresponding figures of the Windows 29 and fixes them quick washers 25.Stencils set so that the ferromagnetic layer located on the surface of the product, and three stencils, where it is located between the layers closer to the product. After this statement, according to the sequence of drawing the pattern on the product, sets the appropriate frame with stencil against the window of the base plate. To do this, grasp the handle 14, overcoming the resistance of the springs 16, he pulls the axle 13 is fixed on a rotating axis, sets up a frame with a corresponding frame in the working position and enters the spike 19 into the opening 9 of the plate.After which comprises an electromagnet, which generates in the plate 4 and the area of the pattern of the magnetic field that attracts the ferromagnetic layer 28 or 32, and with it the entire stencil to the glass. The stencil adheres smoothly, tightly without any gaps. The device is then placed in the chamber is hermetically closed and by means of a manipulator (not shown) or automatically produce handling products through the window 29 of the stencil by a stream of abrasive material. After processing on the first stencil electromagnet 11 switch to reverse polarity, resulting in the plate 4 is induced repulsive magnetic field.Then similarly to the above-described rotate around the axis of the handle 14 and the plate 18 with the part 23 and assign it, and in its place establish the following frame with the second stencil and switch the polarity of the electromagnet. The process of drawing (halftone or new elements on the same sheet) continues.After drawing figure through the last stencil product is removed and set a new one.When working with permanent magnets, first assign the magnets, and sootnesenie pattern in number from 500 to 2000 gaskets drawings on the same stencil.Work is done quickly, conveniently and efficiently. 1. DEVICE FOR the FORMATION of a PATTERN ON a FLAT PRODUCT mainly stream of abrasive material containing at least one mounted on the basis of a multi-layer stencil with the corresponding contour of the pattern Windows and a support plate with clamps for installation on it products and stencil, characterized in that, with the aim of improving the quality formed on the product pattern by providing a snug fit to the product of the edges of the Windows of the stencil, convenience and performance, the anchor plate has a plate of ferromagnetic material, under which is mounted a tool for guidance in the plate of the magnetic field, and one of the layers of the stencil is made of a ferromagnetic material.2. The device under item 1, characterized in that the stencil is mounted on the base by means of a frame in the form of radiation frame provided with a drive rotation and position lock.3. The device according to PP.1 and 2, characterized in that the layer of ferromagnetic material placed between other layers of the stencil.4. The device according to PP.1 to 3, characterized in that the means for bringing in a plate of a magnetic field to perform gitogo field is done in the form of permanent magnets.6. The device according to PP.1, 2 and 5, wherein one of the layers of the stencil is made of a polymeric material, and the second of the pet nonwoven fabric, a polymer layer is metallized ferromagnetic material.7. The device according to PP.1 - 6, characterized in that the outer layers of the stencil is made of a polymeric material, such as PVC film, and the inside of the Mylar paper, and the outer surface of one of the polymer layers are metallized ferromagnetic material.8. The device according to PP.1 to 7, characterized in that one of the layers of the stencil is made of polymer film, and the second foil.9. The device according to PP.1 to 8, characterized in that on the opposite edges of the stencil is made of at least two signal holes.10. The device according to PP.1 and 6, characterized in that the ferromagnetic layer deposited on a Mylar material.
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