• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The screen printing machine according to the invention consisting of a stencil which is moved backwards and forwards and an adjustable doctor blade unit in addition to a stationary counter-printing roller or a counter-printing cylinder, features a stencil which is guided at an angle to the horizontal and mounted so as to be capable of moving upwards and downwards. This stencil with its frame can rest in a carriage which is then itself mounted so as to be capable of moving upwards and downwards but the stencil can also carry the guide means itself, at the side of the frame. The web guidance is such that the member moving in the positive direction to the counter-printing cylinder or counter-printing roller is easily observed by an inspector. Beneath the stencil which is capable of moving upwards and downwards and is positioned at an angle, a drier is preferably arranged through which the web of material is first fed in reverse and then, only after the drying process, passed on to the next station or the like. …<IMAGE>…
    公开号:SU1762744A3
    申请号:SU884355893
    申请日:1988-06-06
    公开日:1992-09-15
    发明作者:Клемм Герхард
    申请人:Герхард Клемм (DE)；
    IPC主号:
    专利说明:

    This invention relates to a screen printing machine for the restrictive part of paragraph 1.
    The purpose of the invention is to provide ease of maintenance while reducing the size of the machine.
    Graphic materials provide exemplary embodiments of the invention.
    Fig, 1 - device at the beginning of the gasket phase; FIG. 2 — device at the beginning of the printing phase; FIG. 3 is a top view of the carriage with the template; FIG. 4 and 5 - individual parts; FIG. 6 is another exemplary embodiment; FIG. 7 and 8 is a template, as seen from above and in section VIII-VIII of FIG. 7
    Figures 1 through 3 very schematically show a partially dissected screen printing section. A series of such screen printing sections can be installed next to each other.
    The template (stencil) 1 itself known in the present embodiment is located in the carriage 2 for templates which moves in the direction or along the guides 3. The position of the guides can be changed in the directions indicated by the arrow A, and two directions opposite each other T, which have a predominantly T shape, can change their position by turning around axis 4. Opposite guide rails change their position together. Axis 4 can be adjusted in height in the directions indicated by arrow B.
    p4
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    The template carriage 2 is provided with a drive 5, for example, with a drive gear 6 reversible in its direction of rotation. In order to be able to adjust angularly, the position of the drive gear 6 can be changed, for example, by displacing the housing 7 in the directions indicated by the arrow.
    The drive gear 6 in the present embodiment is a coupling with a toothed rack 8 located below the template carriage 2. The position of the template 1 in the carriage 2 can be fixed in any way, for example, strips 9 and 10.
    The template 11 is connected with the mechanism 11 of the knife, which can be performed in any way, but mostly this mechanism of the squeegee is made of squeegee 12 and the associated feed squeegee 13 (Schlopprakel). The movable rod 14 not only allows the doctor unit 11 to be raised (in the direction of arrow C), but also allows the blades to be moved with respect to each other and with respect to the counter-pressure cylinder 15, parallel to the pattern grid 16. In the general position of the doctor device 1, during the printing process, it is set in such a way that the doctor blade 12 after printing contacts precisely along the tangential line of contact of the mesh 16 with the surface of the shell of the counter-pressure cylinder 16.
    The design of the template 1 will be described later. In FIG. 1, the paint supply system 17 can be seen, and, as already stated at the beginning, the term paint should not be understood as a limiting term. The paint supply system 17 in the present example of execution consists of a circulation pump 18 with a supply hose 19 and transporting the hose 20, and thanks to the latter, the circulating ink is again supplied to the doctor unit. Connection (hose) occurs on the frame 21 of the template 1.
    The ribbon feed or web feed is also shown only schematically. In the direction of the arrow D, the web is fed by means of the guide rolls 22, 23 and the feed roller 24. A web 25 for centering the web, which can be changed in its position by turning around a vertical point (axis)
    26, turning, carries guide rollers
    27. Such web centering devices are known. They are designed to bring flawlessly the web 28 or belt to the backpressure cylinder 15 and
    to its suction segment 29, which is located inside the cylinder, namely, already aligned with the rapport in width. Using a tension sensor 30, consisting of three rolls and a control device 31, the web, controlled by its position and tension, is fed to the backpressure cylinder 15, passes it and then goes to the drying unit and to the nearest section. The vertical branch can be controlled through the entrance window 32. The ascending branch of the web to the counterpressure cylinder 15 and the descending web branch from the back pressure cylinder 15 to the guide roller 33 extend predominantly vertically and both branches, preferably parallel to each other. The directions of movement of E and F can also be at an angle to each other.
    From the named window 32, maintenance personnel can observe the downward branch F in the web path on the sealed side and state whether paint is applied smoothly or the like, is the width consistent and the length is consistent and the painted surfaces are evenly sealed raster points are highlighted.
    By reversing the squeegee-holding cylinder 34 and adjusting the supply of the webs, by changing the amount of the dyed mass, etc., the service personnel can immediately apply measures if something does not agree in the process of applying paint.
    Instead of the doctor blade, a device with spray heads, etc. can also be used, which allows applying gloss or the like to the web through the pattern grid, as well as through coarse patterns or the like. Consequently, the term rakl (radical apparatus) also should not rise in a limiting sense.
    FIG. 1 shows the position of the device shortly before the so-called pickup phase. In this phase, the feed squeegee 21 moves down and spreads the paint, as it does not touch the pattern over the surface, in a layer of desired and predetermined thickness.
    FIG. 2 shows the beginning of the so-called sealing phase. In this position, rakl 12 moves down and the slave doctor device 13 is in the upper position. In front of the scraper 12, a paint swamp is linearly displaced across the sealing width and moving up the entire carriage 2 for the template in the direction of the arrow G, i.e., when moving, the sealing is performed while the counterpressure cylinder 15 performs its intermittent feed movement and
    progressively moves the web in the direction of arrows E and F. During the push-up stroke in the so-called layout phase when the carriage 21 moves for the template in the direction of arrow G (Fig. 1), the web is left and the non-production template does not touch the surface of the web or the surface of the backpressure cylinder 15 . This cannot be seen in FIG. 1, since the distance is so minimal that, with the reduced image presented, this distance cannot be seen. It is significant that the downward movement in the direction of the arrow G occurs so that no contact of the template 1 with the web on the backpressure cylinder 15 occurs. The template moves down in the direction of the arrow G freely sagging down, completely not in contact with the web 29 and its surface or with the outer surface of the cylinder 15, if any web should not be stretched over it, for example, in the mounting position or the like. .
    The controlled reciprocating drive for moving up and down the carriage 2 for the pattern is carried out by switching the drive 5, i.e. by changing the direction of rotation of the drive gear 6. The displacement stroke can be adjusted, for example, by adjusting the cue mark.
    During the sealing phase, due to the downward movement of the doctor unit 12, a paint swamp forms in front of it and, at the same time as the paint is pressed through, the paint swamp also moves due to the downward inclined position of the pattern or tends to move downwards and directly goes through supply line 19 to the compass the stationary pump 18 and again along the transport line 20 is laid in the doctor device in front of the driven feed blade 13. Due to this, the paint is evenly mixed, OMe that paint on the template may not age, and for instance, with addition of metal particles or m. p., they can not be deposited. This is just one example showing the benefits of such circulation, which is greatly facilitated by the oblique pattern when the natural force of land attraction is used. This ensures that the paint tends to move down the sloping pattern, uniformly wetting the pattern, in order to then reach the circulation pump by jointly moving the pattern and transporting through the supply line 19. This eliminates the significant drawbacks associated with drying the paint and similar difficulties arising from horizontal patterns.
    FIG. 3, 4 and 5 show the installation features of the templates.
    FIG. 3, the housing parts 35, which are also marked in FIG. 1, with vertical supports 36 and horizontal arms 37 in the lower zone and with upper horizontal arms 38. Here, too, is the axis 4 for hinging the connection of the guides 3. Next, in FIG. 3, view5, but, as drive units 5 for those shown in FIG. The 1 and 2 drive gears 6 are integrated with each other by the axis 39. The gears 6 are meshed into the right and left below, respectively.
    0 by the carriage 2 for the template, the racks 8, so that the whole carriage 2 can move up and down.
    Using FIG. 4, representing a section along line IV-IV of FIG. 3. It can be seen how the guide 3 3 engages in the carriage 2 for the template and how the template 1 is attached to the lower shoulder 40 of the carriage 2 by its frame 21 (stencil) with the frame 1. Under the carriage 2 is fixed gear rack 8.
    0Fig. 5 shows another top view of
    corner frame with the location of the strap 41 at the end of the template for fixing. FIG. 6 shows an embodiment with two working sections for printing.
    5 which can also be further application sections (paint), if, for example, there is no template or, instead of doctor blades, 11 they work with spray heads or the like, for example, also through
    0 large stencils.
    The web 29 is guided in two sections, as already described in connection with FIG. 1 and 2, and moves in the directions indicated by the arrows, using counter-pressure cylinders 3 that are mainly intermittent, which can be performed according to the German patent No. 2943894 or according to the German patent No. 2857766. In all the working sections H included 1 and in the case of
    It is also necessary for others to rationally bring back-pressure cylinders supplied with a suction segment synchronously to each other. But decisive in this case is
    5 of the template and the free variation of this inclined position in the so-called inclined sections.
    Further, it is essential that if several sections H, 1 are located one after the other, it is possible to direct
    the web below the obliquely arranged templates 1 or below the obliquely arranged carriage 2 for the template, which can be displaced up and down along the guides 3, that any drying device 8 can be matched with the web movement path. Due to this, it is possible to apply directly to the nearest section where the paint is applied, the just-sealed web. In the device, the drying device can also follow only one section for sealing or applying paint, but it is especially rational when several sections of the drying device are installed one after the other in order, for example, to be able to perform multi-color printing. FIG. 6, only two sections are shown; more than two sections, for example, four, with repeated or variable design can also be performed.
    Drying device 42 can be performed in any way. The device shown in the exemplary embodiment shown is a dual drying device, which on one side consists of a contact drying plate 43, which is installed on the unsealed side of the web and with which the fan dryer 44 is associated on the opposite side, i.e. on the sealed (coated) side of the canvas. It goes without saying that this fan dryer does not touch the surface of the web.
    The canvas in this embodiment is supplied to the dryer inlet, V-shaped is directed further and then directly under the step 32, which can also be located here and from which it can be located here and from which the branch F of the downwardly moving web can be observed. After the tension sensor 45, the web passes the roller 56 and is fed directly thereafter into the centering web of the device 25, which can be made of any previously known construction. This blade centering device 25 can be made of a swivel unit that precisely sets the web relative to the width of the repeat.
    Before entering the next section, the web passes the tension sensor 31, consisting of three rolls, and then moves, then covers at any angle, preferably 180 °, the backpressure cylinder 15.
    Like the second section, all sequentially installed sections can have
    dryer 42 as a conjugate device. Here again, too, this drying device 42 is made up of two parts consisting, on the one hand, of a plate-type contact dryer 43 adjacent to the back side of the web, and a ventilation dryer 44, which is again installed without contact with the web. The transition again occurs on step 32. The canvas can
    0 is further fed to the next section for screen printing or for applying ink.
    FIG. Figure 7 shows a top view of the template instead of the carriage for the template, which bears two longitudinal guides 46 directly fastened thereto with grooves 47, which may respectively be engaged with gear 4 in the embodiment of figure 4.
    0 Thus, these longitudinal guides 46 are fastened on both sides of the template frame. The frame 21 of the template has in its lower part an angled strip 48, the inner walls of which are cut out at the no-corner to make it possible to access the paint in the directions indicated by arrows. These inner walls 49 thus allow the outflow of the template, which is displaced forward to
    0 time of the process of sealing paint or other liquid mass to the pipe 50, to which is connected the supply line 19, leading to the circulation pump 18. Transported by the line 20 paint,
    5, a liquid mass, foam or other chemicals are placed in front of the feeding doctor 13, with which the blade 12 is associated (see Fig. 8).
    Corner area of frame slats 48 can
    0 to be closed at the top, but can also be open, for example, for the purpose of cleaning, especially considering that the paint or liquid mass is kept only in the lower zone and does not create any danger for injection
    5 under pressure. It is important that with the help of the inner walls 49 of the lower laths of the frame 48, which are located at an obtuse angle to each other, inflow ramps are created that guide the paint or liquid substance.
    0 in the direction of the nozzle 50 or supply line 19. When the template is inclined and, therefore, understandably, the frames 21 of the template of the strip 48 of the frame are always at the bottom.
    5 Shown in FIG. 1, the alpha angle of the position of the template with respect to the horizontal is approximately 43 ° and may vary, for example, from 5 to 85 °. The required angle is approximately 60 ° or 20 °, from 45 ° to 70 °. The position of the doctor device 11 is also variable depending on the angular position of the template 1 to the horizontal and, accordingly, is adjusted so that the doctor blade 12 is preferably at a right angle to the tangentially adjacent template 16.
    It goes without saying that the idea of the invention is not limited to the embodiments presented, since other variants are conceivable and possible.
    The features presented separately and in combination are considered essential to the invention because they are new in relation to the current technical level.
    权利要求:
    Claims (18)
    [1]
    1. Screen printing machine on a web containing a base mounted on it at least one printing unit including a frame in a frame installed at an angle to the horizontal plane with the possibility of reciprocating movement in the plane of its installation from the top to the bottom position device and stationary mounted backpressure cylinder, characterized in that, in order to provide ease of maintenance while reducing the size of the machine, the angle of installation of the template to the horizontal It corresponds to 20-70 °.
    [2]
    2. The machine according to claim 1, characterized in that it is provided with a carriage mounted with the possibility of reciprocating movement, wherein the template with its frame is fixed on the carriage.
    [3]
    3. Machine on PP. 1 and 2, characterized in that it has a drive for reciprocating movement of the template or carriage.
    [4]
    4. Machine on PP. 1-3, characterized in that it has means for adjusting the angle of inclination of the template or its carriage.
    [5]
    5. Machine on PP. 1-4, characterized in that the doctor blade device is installed with the possibility of reciprocating movement by means of a rod in a plane tangentially located relative to the counter-pressure cylinder, and adjustable relative to the surface of the template.
    [6]
    6. Machine on PP. 1-5, characterized in that it is provided with guide rollers for a sealed pot that are installed with respect to a back pressure cylinder at levels that allow movement of the web that envelops this cylinder in vertical parallel planes.
    [7]
    7. Machine according to paragraphs. 1-6, characterized in that it is provided with a control bridge or step located in the zone of movement of the web in the vertical
    plane.
    [8]
    8. Machine on PP. 1-8, characterized in that the template or its carriage has guides rotatably mounted on the base.
    [9]
    9. Machine on PP. 1-9, characterized in that the template or carriage drive is a rack-and-pinion pair, the staff of which is located on the underside of the template frame or its carriage, and the gear is mounted on the base so that its position can be adjusted.
    [10]
    10. Machine on PP. 1-9, characterized in that it is provided with a device for
    ink circulation, consisting of a pump, a supply line connected to it, connected to a template frame, and a transport line connected to a pump and doctor device.
    [11]
    11. Machine on PP. 1-10, characterized in that it has several sections installed in a row, and in at least one of the sections the template or its carriage are angled to the horizontal with the possibility of reciprocating movement in the installation plane from the upper to the lower position.
    [12]
    12.Mashina on PP. 1-12, characterized in that it has tension and centering devices for a web disposed between the printing sections.
    [13]
    13. The machine according to claim 8, wherein the template frame has a longitudinal groove for mounting on rails.
    [14]
    14. Machine on PP. 1-10, characterized in that the template frame is provided with a bar mounted in its lower part with a recess for connection by means of a nipple to the supply line.
    [15]
    15. Machine on PP. 1, 10 and 14, characterized in that the connection section of the supply line with the template frame is located in front of the doctor unit in the opposite direction to the template movement.
    [16]
    16.Mashina on PP. 1-15. different with that. that is equipped with a drying device located under the template or the carriage in the zone of movement of the canvas.
    [17]
    17. The machine according to claim 16, wherein the drying device comprises a contact drying plate and a fan drying apparatus located on the sides of the path of movement of the web.
    [18]
    18. A machine according to claim 12, wherein the tensioning and centering devices for the web have a tension sensor and a monitoring element, the counter-pressure cylinder being provided with a suction segment.
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    同族专利:
    公开号 | 公开日
    EP0294640A3|1990-01-17|
    DE3719059A1|1988-12-22|
    DE3886100D1|1994-01-20|
    US4998470A|1991-03-12|
    EP0294640B1|1993-12-08|
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    DE2943894C3|1979-03-19|1982-08-05|Gerhard Ing. 4800 Bielefeld Klemm|Device for transporting air-impermeable material webs, such as paper or film webs|
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    DE3103421C2|1981-02-02|1984-07-12|Gerhard Ing. 4800 Bielefeld Klemm|Device for drying by means of screen printing printed webs|
    JPS57184544A|1981-05-08|1982-11-13|Mitsubishi Heavy Ind Ltd|Molding method for helical groove|
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    DE3306241A1|1983-02-23|1984-08-23|Gerhard Ing. 4800 Bielefeld Klemm|PRINTING MACHINE WORKING WITH COUNTERPRESS ROLLER, PREFERABLY SCREENPRINTING MACHINE|
    DE8304988U1|1983-02-23|1991-11-07|Klemm, Gerhard, Ing., 4800 Bielefeld, De|
    DE3334444A1|1983-09-23|1985-04-11|Gerhard 4800 Bielefeld Klemm|SCREEN PRINTING MACHINE|
    DE3335235A1|1983-09-29|1985-04-11|M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach|PRINTER FOR A ROLL ROTATION PRINTING MACHINE|
    DE3506520C2|1984-10-27|1986-11-27|Gerhard 4800 Bielefeld Klemm|Device for drying individual pieces, consisting of a number of box-like vacuum chambers|SE468504B|1990-04-25|1993-02-01|Svecia Screen Printing Systems|STONE PRINTING MACHINE WITH A PRINTING TABLE AND WITH COMPENSATION FOR PATTERN SCREWING|
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    US5611274A|1993-05-19|1997-03-18|Tani Denkikogyo Co., Ltd.|Apparatus for screen printing of viscous materials|
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    US5553536A|1994-10-03|1996-09-10|Van Os Enterprises|Screen printing apparatus with vacuum conveyor belt|
    JPH10114135A|1996-10-12|1998-05-06|Riso Kagaku Corp|Pressure reducing stencil printer and printing method|
    IT1294648B1|1997-09-05|1999-04-12|Ianua Spa|SCREEN PRINTING MACHINE WITH PERFECTED DEVICE FOR SUCTION OF EXCESS INK.|
    DE19940073B4|1999-08-24|2012-04-12|Jürgen Fromm|Screen printing method, a doctor blade system, in particular for such a screen printing method, and a screen printing apparatus, in particular for carrying out such a method|
    DE10134132A1|2001-07-13|2003-01-30|Siemens Ag|Device and method for the continuous printing of organic light emitting diodes|
    CN105500902B|2016-02-02|2017-04-26|张永胜|Screen printing machine for conveying materials in inclined rotating manner|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3719059A|DE3719059C2|1987-06-06|1987-06-06|Screen printing machine for printing on a web|
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