![]() Device for multilayer printed circuit board manufacturing
专利摘要:
The invention relates to an apparatus for the continuous making of multilayer printed circuit boards, with a double-belt press, having two endless pressing belts arranged one above the other in a press frame and each led over two deflecting rollers, for the compression of multilayer inner layers at the edges of which fixing holes are made. Arranged ahead of the double-belt press are successive unwinding units for the multilayer inner-layer webs, on a roller, with unwinding units in between for the prepreg webs, or depositing means for the multilayer inner layers, as sheets, with unwinding units in between for the prepreg webs. At least one pressing belt of the double-belt press has projections attached at regular intervals on the outside of the pressing belt on at least one edge, which projections correspond to the fixing holes in order to allow accurately matching superposing of the multilayer inner layers to form a layered structure representing the multilayer arrangement and to allow a fixing of the multilayer inner layers of this layered structure during the compression in the double-belt press. <IMAGE> 公开号:SU1713451A3 申请号:SU894613240 申请日:1989-01-11 公开日:1992-02-15 发明作者:Хельд Курт 申请人:Held Kurt; IPC主号:
专利说明:
This invention relates to an apparatus for the continuous manufacture of multilayer printed circuit boards, Electronic and electrical industries use printed circuit boards for mounting structural elements and electrically connecting them together. The starting material for such printed circuit boards are laminates laminated with copper. The purpose of the invention is to improve the quality of products. FIG. 1 shows an apparatus for the continuous manufacture of laminates (substrates) laminated with copper; in fig. 2 shows a sheet of the inner layers of a multilayer structure with locking holes, top view; in fig. 3 — a device for the continuous manufacture of multilayer printed circuit boards from the webs of the inner layers of a multilayer structure; in fig. 4 — apparatus for the continuous manufacture of multilayer printed circuit boards from inner layers multilayer structure, in FIG. 5 - pin blade; in fig. 6 - two-belt press with pin web, cut. The device contains a two-belt press 1, a punching mechanism 2, coilers 3 and 4 with coils 5 and coils 6 and 7 of the winding mechanism 8, coils 9, scissors 10, plates 11, pallets 12, control bus 13, display 14, laminated structures 15, laminate blades 16 with locking holes 17 along the perforated edge 18 of the web 16, etching surface 19. The device may contain a two-belt press 20, winders 21-26, cooling mechanisms 27, saws 28, computer 29 with display 30, pressure plates 31 and 32, guide drums 33-36, support points 37 and 38, part of the frame 39, protrusions 40 in the form of short teeth, coils 41-47 cleaning mechanism 48, multi-layer fabric 49. In addition, the device may contain a winder 50, support plates 51. piles 52. mechanism 53, coils 54. canvas 55, lantern tooth 56, weld 57. cylinder 58, adhesive seam 59. lantern tooth 60. through hole 61, screw 62 , threaded hole 63, pin tooth 64, cylindrical shank 65, hole 66. hydraulic cylinder 67, laminated formation 68, pressure plates 69 and 70, seals 71, pressure chamber 72, rollers 73. The device works as follows. Copper-laminated laminated canvases are wound onto coils 9 at the winding position, in the case of a thin flexible laminated sheet laminated with copper. The laminate web 16, laminated with copper, is cut by scissors 10 into plates 11. laminated with copper, which are laid on pallets 12. Copper laminated laminated webs 16 that can be wound on reels 9, or copper laminated 11 plates can be processed longer to produce multi-layer printed circuit boards. The laminated canvases 16, lined with copper, are made with locking holes 17, made with a punching device on both sides. The fixing holes 17, the centers of which are at the same distance from each other, are located along the perforated edge 18. In accordance with the fixing holes 17, the etching surfaces 19 are determined to obtain the desired pattern of conductive paths. On each of these etched surfaces, they are printed in a known manner or applied to photographic or similar means by a desired pattern of conductive tracks in multi-layer printed circuit boards. During the final etching process on a laminated web 16 laminated with copper, a layer of copper is removed such that only conductive tracks remain. It is preferable to produce on the laminated web lined with copper always the same pattern of conductive tracks of one inner layer of the multilayered structure of etched etching sections 19, while obtaining a corresponding web of the inner layers of the multilayered structure. The apparatus for making multi-layer printed circuit boards shown in FIG. 3, may also include a two-belt press 20, several coilers 21-26 located in front of this two-belt press, a cooling and cleaning mechanism 27 behind the two-belt press, and a cross-cut saw 28. The entire workflow represented in FIG. 3 of the installation is controlled from the computer 29. located in the control cabinet. The data for the computer is entered by the operator through the display 30. The dual-band press 20 has two endless pressing webs 31 and 32. located one above the other on the press frame. These canvases are continuously circulated through the drums 33, 34 or 35. 36. The pressure canvases 31 and 32 are tensioned with 5 using a hydraulic cylinder. The drums 33-36 are rotatably disposed on the support webs 37 and 38, also mounted on the press bed. The lower press fabric 32 protrudes forward from 0 of a two-belt press 20. wherein the lower support web 38 and the relative to-it part of the press frame are elongated in the horizontal direction to the entrance to the two-belt press 20. A tension drum 36 for 5, the press fabric 32 is located at the outermost end of this extension. Due to this arrangement, the part of the pressure sheet 32. located on the outside of the two-belt press 20, forms a transporting sheet for internal interlayers of the multilayer structure and prepreg cloths transported to the two-belt press 20. The lower pressure sheet 32 is provided with lugs 40 along its edges. 5 made in the form of spike teeth spaced apart from each other. equal to the distance between the fixing holes of the 17 perforated edges 18 of the laminated web 16. the laminated 0 with copper and having a diameter equal to the diameter of the fixing holes 17. i.e. projection i40 interact with retaining apertures 17. In front of the drum 36 is located mo: 5, a talk 21 comprising a coil 41 for producing an electrolytically copper foil and a coil 42 for prepreg. The copper foil is continuously unwound from the coil 41 and guided through the tension 0 a drum 36 onto the press fabric 32. A prepreg web that is unwound from the reel 42 is applied to this copper foil. and they, together with the press web, are fed in a direction to a two-belt press 20. In 5, the time of this movement of the first web of the inner layer of the multilayer structure of the mat, from the coil 43 of the coiler 22, and with the help of the fixing holes 17 is superimposed on the pinion teeth of the pressure bar 32. a layer of a multilayer structure is superimposed on a prepreg web unrolled from coil 44 of winder 23. Next, the next webs of inner layers of a multilayer structure go and wrinkled off (coils 45 of coilers 24 and separated from prepreg coils of 46 coils 25. The number of these canvases of inner layers the multilayer structure, as well as the coilers 24 and 25, is determined by the required construction of the multilayer printed circuit boards. The centering of the individual inner layers relative to each other is ensured with high precision from with the help of bolt teeth, which fit into the corresponding holes 17 on the perforated edges of the canvases of the inner layers of the multilayer structure. In this case, the inner layer of the multilayer structure should be applied to the underlying canvas of the first roller in accordance with the pattern of the conducting tracks, with a certain orientation relative to the fixing holes, since the pattern of conductive paths is superimposed on each web of the inner layer of the layered structure at the same distance. A copper foil is finally applied to the topmost layer of the prepreg, which is fed from the coil 47 of the coiler 26 through the tension drum 34. The tension drums 34 and 36 are heated on the inlet side, they heat the copper foil to prevent wrinkling. To clean the surface of the copper foil, cleaning mechanisms 48 can be located on the entry side of the tension drums 34 and 36, through which dust and dirt are removed from the copper foil. Instead of the upper and lower copper foils, the finished outer layers of the multilayer structure, also having fixing holes, can also be superimposed. The layered formation 68 is obtained from the canvases of the inner layers of a multilayer structure separated by prepreg webs and from copper foil adjacent to the prepreg webs pressed in a two-belt press 20 between pressure plates T1 and 32 under the effect of pressure on the surface and heat while moving through a two-band press 20 In order to exert surface pressure on the formation 68 on the back side of the press webs 31 and 32, pressure plates 69 and 70 are located, the pressing pressure from which is transmitted through dkoe mechanical means to the pressing blade 31, 32 (FIG. 6). When transferring pressure by means of liquid means pressure nlite 69 ring-shaped seals 71 are arranged in a ring-shaped manner, which slidly contact with the surface of the inner side of the pressure bed 3.1. 5 Between the seals 71, the pressure plate 69 and the inner side of the pressure sheet 31, a pressure chamber 72 is provided in which a liquid medium is under pressure. On the pressure plate 70, there are stationary fixed rollers 73 which transfer pressure from the pressure plate 70 to the inner side of the pressure sheet 32. Sewing teeth of the pressure sheet 32 entering into the fixing holes 17, 15- fix the webs of the inner layers of the multilayer structure upon application of pressure, as a result of which moving or squeezing of the individual inner layers is prevented and they are arranged 0 relative to a friend absolutely. If necessary, a cooling zone may be located at the end of the double band gress, in which the layered formation 68 under pressure is cooled. 5 At the exit of the two-belt press 20, the resin of the prepreg webs hardens and binds the individual laminate webs together with each other into a compact web 49 of a multi-layer structure in which the individual multi-layer printed circuit boards are arranged one relative to the other at an equal distance. The multi-layer web 49 is passed through a cooling mechanism 27 in which the surfaces of the multi-layer web made of copper foil are cleaned with a solvent. Behind the cooling mechanism 27 there is a cross-cutting saw, by means of which individual multilayer printed circuit boards are cut from web 49 with a multi-layer structure. Multi-layer printed circuit boards are stacked on pallets for unloading. Conductive track patterns on the outer layers of a multilayer structure 5 can be made behind the cooling mechanism 27 at the processing station in accordance with the fixing holes 17. The patterns of the conductive tracks on the outer layer of the multilayer structure can be made when the multilayer sheet 49 is already divided by a cross-cut saw 28 into separate multilayer plates of printed circuit boards. Perforated edges 18, it is advisable to cut 5 only after the outer layer of the multilayer structure is finally processed. FIG. 4 shows an apparatus for manufacturing multilayer printed circuit boards, an embodiment according to which the double belt press 20 is identical to the press shown in FIG. 3 or 6, however, instead of the canvases of the inner layers of the multilayer structure, separate inner layers are pressed into the multilayer printed circuit boards. To do this, base plates 51 are located on the lower support web 38. On which there is one stack of identical inner layers of the multilayer structure. The order in stack 52 corresponds to the desired order of the inner layers of the multilayer structure in the multilayer printed circuit boards. On the side of the web 32 located opposite the base plates 51, there is a winder 50 with coils 54 for pre-webs. In the device shown in FIG. 4, a copper foil is rolled up from the coil 41 of the coiler 21, which is superimposed on the press fabric 32. A prepreg sheet is applied to this copper foil and coiled from the coil 52 of the coiler 21. 52, wherein the spike teeth enter the fixing holes 17 at the perforated edge. The mechanism 53 may consist, for example, of a relocatable sucker. On the first inner layer of the multilayer structure, a layer of the npeTipera web unwinding from the reel 54 of the winder 50 is applied. Then, from the next stack 52, the next inner layer of the multilayer structure is applied to the prepreg cloth using the mechanism 53, the second inner layer being centered on the first inner layer using fixing holes 17. The helical teeth are also included in the fixing holes 17 of the second inner layer. Then other pre-cloth webs are fed from the coils 54 of the coilers 50; alternate with the rest of the inner layers of the pre-strip from stack 52. A pre-strip canvas is again applied to the uppermost inner layer of the multilayer structure, and finally the copper foil from the coil 47 of the coil 46 is received. the web 32 into the two-belt press 20 and is pressed there with the application of pressure on its surface and heat supply to the multi-layer web 55, the clamping teeth of the pressure web being fixed inside thin layers relative to each other. Thereafter, the multi-layer web 55 exits the double-belt press, is cut by a cross-cut saw 28 into separate multi-layered plates, and the fixing holes 17 again serve as a guide. After that, in accordance with the fixing holes 17, a pattern of conductive tracks is applied to the copper foil on the surface of the multilayer plates. Then, the perforated edges with locking holes 17 are cut. Multilayer plates are stacked on a pallet for transport. FIG. 5 shows several embodiments of the protrusions 40 of the pressure sheet 32 interacting with the fixing holes 17. According to the first embodiment, the pinnut 56, which has a generally cylindrical body with a conical pointed upper end, is connected to the pressure plate by the welding stick 57. Similarly, reliably The pinnacle can be priped to the gusset. The pointed end of the pinnacle facilitates the application of the inner layers of the multilayer structure onto the pinnacles in the fixing holes 17. A spike tooth may also have another shape, for example a cylinder 58 without a sharp point at the end. Such a pin tooth is fastened on the pressure sheet 32 with a layer of glue. Spanner 60 is screwed to the press blade. To this end, the press fabric has a through hole 61 at the attachment point, and the pinion tooth 60 has a threaded hole 63. With the countersunk head screw 62, the pinnut 60 is screwed to the pressure plate on the opposite side of the fabric, with the screw head flush with the surface of the pressure plate . In other mounting options, the cylindrical shank 65 is welded to the pressing web. The spike tooth 64 has a circular cross section hole 66, the diameter of which exactly corresponds to the diameter of the shank 65. and is put on this shank hole by the shank 65. Both of the latter embodiments have the advantage, since the spike teeth 60 and 64 can be replaced by others. having a different height, with different thickness of manufactured multilayer printed circuit boards.
权利要求:
Claims (9) [1] The protruding lower gusset plate 32 facilitates the application of the inner layers of the multilayer structure. But it is also possible to use a normal clamping blade with pinch teeth, which do not protrude from the double-belt press. Instead of the lower pressing fabric, it is also possible to use an upper pressing fabric with pinning teeth or both pressing blades 31 and 32 with pinning teeth. It is essential that at least one pressure sheet of a double-belt press has protrusions associated with it, which are located at the same distance and interact with the fixing holes 17 of the perforated edges of the first sheet 16 laminated with copper. Invention Formula 1. A device for the continuous manufacture of multilayer printed circuit boards containing a two-belt press with pressure elements, between which are placed endless pressure plates mounted on the drive drums, the rewinding mechanism of the multilayer structures with locking holes, in that , in order to improve the quality of the products, protrusions are made on at least one pressure sheet of the two-belt press with the possibility of interaction with the fixing holes of the multilayer structures, 2. The device according to claim 1, in that the distance between the pressure drums of one of the endless pressure canvases is greater than the distance of the drive drums of the other endless pressure canopy. [2] 3. The device according to paragraphs. 1 and 2, that is, so that the protrusions corresponding to the fixing holes are made on the lower pressure sheet. [3] 4. The device according to claim 1 or 2, is apt to such that the protrusions corresponding to the fixing holes are made on the upper pressing web. [4] 5. The device according to clause I or 2, is specified so that the protrusions corresponding to the fixing holes are made on both the upper and the lower pressure sheet. [5] 6. The device according to one of paragraphs. 1 to 5, characterized in that the protrusions are made in the form of pinching teeth located on the pressing fabric. [6] 7. The device according to claim 6, of which is that the spike teeth are cylindrical. [7] 8. The device according to claim 7, characterized in that the spike teeth are made conical. [8] 9. The device according to one of paragraphs. 1-8. 5 of those and with the fact that the protrusions [9] The corresponding fixing holes, are rigidly mounted on the pressure belt. lOi The device according to claim 9, that is to say that the protrusions corresponding to the fixing holes are connected to the pressure plate by welding. ; 11. The device according to claim 9, which is based on the fact that the protrusion corresponding to the fixing holes is connected to the pressure soldering. 12. The device according to claim 9, of which is that the protrusions corresponding to the fixing holes are attached to the pressure sheet by an adhesive joint. 13. The device according to paragraphs. 1 - 8, that is, so that the protrusions corresponding to the fixing holes are installed with the possibility of replacement on the pressure plate 5; ,not:.:, ::.-".; ; , .. 14. The device according to claim 13, of which it, the protrusions corresponding to the fixing holes, are attached to the pressure plate by a screw connection. . 15. The device according to claim 14, in connection with the fact that the protrusion is made with a threaded hole rotated to the pressure sheet, to displace the screw with a secret 5 head from the side of the pressure fabric, turned away from speaking 16. The device according to claim 13, wherein it is so that in the protrusion is made a groove rotated to the pressure sheet to accommodate 0 it on the pin, attached to the pressure belt. 17. The device according to claim 16, is distinguished by the fact that (the pin is connected to the pressure plate by welding or soldering. 5 18. The device according to claim 16 or 17, of which is made with the fact that the pin and the groove are made with a circular cross section with approximately the same diameters. M1Y. It i in .i 1 1817 nineteen sixteen 2827 29 37 203Ue 47 26 25 b 4933 35 2. BO 34 40 32 38 4524 23 44 22 A3 21 42 36 4B 41 39 cm 56 57 58 59 60 Y / Y X / 61 6232 5 64 65 / X; 3171 20 72 / I / / / UCHF to 67 70 73 36
类似技术:
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同族专利:
公开号 | 公开日 JPH0634456B2|1994-05-02| CN1010276B|1990-10-31| EP0327838A2|1989-08-16| JPH01239898A|1989-09-25| DE3803997A1|1989-08-24| EP0327838A3|1991-10-30| CN1035410A|1989-09-06|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 DE2215618A1|1972-03-30|1973-10-11|Draiswerke Gmbh|Continuous chipboard press - has two endless belts running along roller paths| AU538120B2|1979-07-31|1984-08-02|Bennik, Anthony Nicolas|Twin belt conveyor| US4443995A|1981-06-23|1984-04-24|Federal Paper Board Co., Inc.|Metering device and method| DE3307057C2|1983-03-01|1991-02-14|Held, Kurt, 7218 Trossingen|Device for the continuous production of copper-clad electrical laminates| DE3835027A1|1988-10-14|1990-04-19|Held Kurt|Method and device for the continuous production of multilayer circuits|FR2569724B1|1984-09-04|1991-02-08|Chisso Corp|PROCESS FOR THE PREPARATION OF HYALURONIC ACID| DE4009182A1|1990-03-22|1991-09-26|Bayer Ag|LAMINATED AREA| TW244340B|1992-07-21|1995-04-01|Akzo Nv| DE19523363B4|1995-05-24|2006-06-14|Fa. Theodor Hymmen|Method and device for continuous laying of individual sheets on a strand of successive plates or on a carrier web| JP4728671B2|2005-03-11|2011-07-20|日本メクトロン株式会社|Flexible printed circuit board transfer device| DE102011010984B4|2011-02-10|2012-12-27|Heraeus Materials Technology Gmbh & Co. Kg|Method for partially laminating flexible substrates| GB2498994B|2012-02-02|2014-03-19|Trackwise Designs Ltd|Method of making a flexible circuit| RU2551929C2|2012-10-31|2015-06-10|Общество с ограниченной ответственностью "Тегас Электрик"|Substrate for printed circuit board assembly| CN103600571A|2013-10-30|2014-02-26|苏州米达思精密电子有限公司|Coiled band-shaped glue-coated metal structure| CN105416984B|2015-12-08|2018-11-23|中山市信立富机械科技有限公司|A kind of melt material transport establishment| WO2018166787A1|2017-03-13|2018-09-20|Hexcel Composites Limited|Method and apparatus for impregnating reinforcement material|
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申请号 | 申请日 | 专利标题 DE19883803997|DE3803997A1|1988-02-10|1988-02-10|DEVICE FOR THE CONTINUOUS PRODUCTION OF MULTILAYER BOARDS| 相关专利
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