• 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 present invention relates to a method for manufacturing an adhesive closing element comprising a plurality of hook members connected to a backing (10) forming a single portion and placed symmetrically thereon. The elements are provided in the form of a stem portion 17 with a head portion 16, wherein the deformable material is introduced into the forming region between the manufacturing master 3 and the forming tool 5. At least, when viewed in the longitudinal section of each mold cavity 12, the opposing confinement walls have a continuous convex path, whereby a continuous transition between the cross sections forms the stem portion 17 and the head portion ( 16 is provided for the hook means of the backing 10 so that the shim is removed.
    公开号:KR20030031977A
    申请号:KR10-2003-7002192
    申请日:2001-07-31
    公开日:2003-04-23
    发明作者:얀 투마
    申请人:고트립 빈데어 게엠베하 운트 코；
    IPC主号:
    专利说明:

    Method for producing an adhesive closing element
    [2] WO 00/00053 A1 relates to a method for producing an adhesive closing portion having a plurality of interlocking means integrally formed in a backing in the form of a stem part having a thick end region, wherein , The plastic or liquid moldable plastic material is supplied to the gap between the pressure roller and the mold roller and the plurality of interlocking means are driven such that a backing is formed in the gap as the forming area and conveyed in the conveying direction, wherein the molding tool The forming element of the phase is a screen with a continuous cavity, the interlocking means being formed by a moldable material at least partially set in the cavity of the screen.
    [3] The second forming element, inside the first forming screen, is a second screen inside. Since the size of the cross section of the opening of the inner second screen is chosen to be somewhat larger than the cross section size of the cavity of the first screen, when plastic is added, a thick area on the end side of the stem is formed. The stem cross section thus produced is generally rotationally symmetrical and the stems form cylindrical elements, which move with the base portion into the backing material and are provided on a free end having a head portion, the head portion being Formed by a second screen having a forming cavity. As a result of the size of the cross section between the mold cavity of the first screen to the stem portion and the mold cavity of the second screen to the head portion, between the indication portions associated with the high adhesion of at least the head portion in the mold cavity of the second screen. Has an edged transition, and as a result, the backing with interlocking means is removed from the mold, and when the process continuity is not accurately adjusted, the high adhesion that can at least partially destroy the molded head portion must be overcome. do. The head parts produced by the above-described process are essentially cylindrical and / or have corner end segments, and the head parts in the same manner as the stem parts are made relatively rigid and less flexible; This creates a difficulty if, for example, head parts of the same type are desired to fit into each intermediate space of the interlocking means of the other closing portions, where the intermediate spaces are used to produce a complete closure. The intermediate spaces, which remain open and which are preferred for interlocking due to the rigidity of the interlocking means, are not eliminated above all.
    [4] The interlocking means produced by using the process described above, as already presented, have a stem cross section of rotational symmetry, the stems themselves first forming cylindrical elements. If the stems undergo a calender process in which a calender roller presses the closure material against the action of a counterstay roller, the free stem ends are widened on their head side; This supports the desired forming head for each interlocking means and the stem takes its own concave paths in the cross section, as described in WO 99/60880 A1. Here only the concave path is produced by an independent calendar manufacturing process, not by a screen manufacturing process according to WO 00/00053 A1 with known mold removal problems.
    [5] It is an object of the present invention, practiced from the above prior art, to further improve the known processes so that a good discharge of the interlocking means after the molding process is achieved at a very high speed, and because of the interlocking means produced in this way, Closing parts that can be connected and attached well are obtained. This object is achieved with a process having the form of claim 1.
    [1] The present invention relates to a method for manufacturing an adhesive closing portion having a plurality of interlocking means integrally connected to a backing in the form of a stem part having a head portion and having a symmetrical structure, Here, a moldable material is supplied to the forming region between the pressure tool and the molding tool, and the plurality of interlocking means are driven such that a backing is formed in the forming region and is conveyed in the conveying direction and has a mold cavity having opposing peripheral walls. Is used as a molding element in molding tools.
    [15] BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic illustration of a partial cut away of an apparatus for carrying out the method of the present invention in a very schematic way.
    [16] FIG. 2 is an enlarged longitudinal section of the mold cavity shown in FIG. 1. FIG.
    [17] FIG. 3 shows an interlocking means that can be manufactured using the mold cavity shown in FIG. 2. FIG.
    [18] 4 shows a backing strip material made from the apparatus of FIG. 1 with the various interlocking means shown in FIG. 3;
    [6] When viewed in at least the longitudinal section of each mold cavity, the opposing peripheral wall has a convex path in series, with a transition that continuously moves between the cross-sectional shape of the stem portion and the head portion for the interlocking means of the backing. Is done. The continuous transition along the convex path is then directed to a mold removal process that is essentially unobstructed without the risk of tearing the head portions from the assigned stem portion for sharp edge shaped variations. In addition, the head portions can be formed with a decreasing height towards their outer peripheral edge such that a type of interlocking lip is formed, as a result of which the head portions are elastically very flexible on the edge side and between each other or Easy interlocking is achieved with the assigned loop material. By appropriately installing one type of interlocking means into the middle space of another or the same type of interlocking means, the ribs of the head parts are resiliently retracted to their original position immediately after joining to re-block the first clear intermediate space again. Pressed to the side. Here, very good closing properties can be achieved between the two adhesive closing parts forming the closure.
    [7] In one preferred embodiment of the method described in the claims of the present invention, the curvature of each path in the direction of the head portion to be molded is produced so as to protrude more severely than the direction of the base portion. The curve has proved particularly desirable both for removal from the mold and for producing the desired geometry of the interlocking means. Preferably, each path, with a more severely curved bend when viewed in the longitudinal direction of the stem part in the direction of the head part, begins at the middle part, preferably the third top.
    [8] In one particularly preferred embodiment of the method described in the claims of the present invention, some longitudinal sections with convex paths are formed so that the cross section of the stem portion and / or the cross section of the head portion is formed into a polygon, in particular a hexagonal shape, of the peripheral walls. Move inside corner Although as a result of the convex paths, the interlocking means can be made rotationally symmetrical, it has proved advantageous to manufacture the interlocking means in hexagons or other polygons. In particular, in the region of the head portion, as a result of the edge configuration, a major deviation occurs in the outer peripheral region; This makes it easier to manufacture for the interlocking means, in the form of a coating of other closing parts forming the closure with the closing parts described earlier in order to achieve an effective interlocking. Due to the indicated hexagons or polygons, in particular, the peeling strength of the closure can be greatly increased.
    [9] In another preferred embodiment of the method described in the claims of the present invention, each mold cavity is made by part of a mold screen or by mold grating of a molding tool.
    [10] However, in a method of different nature, each part of the interlocking means, preferably the head part and the stem part, has a mold grating having its own mold screen or other cross section. In this way, a plurality of configuration possibilities are obtained in the manufacture of the interlocking means.
    [11] Subsequent to the method described in the claims of the present invention, since the mold cavity to be produced has a complicated structure, it has proved particularly good to manufacture a mold cavity having paths using a laser or a galvanic coating process.
    [12] In another preferred embodiment of the method described in the claims of the invention, the mold screen or mold grating is made of a jacket portion arranged around and connected to the forming tool in the form of a roll body. Thus, if necessary, the mold screen or mold grating can be easily replaced with a closing portion and the roller-shaped forming tool is essentially maintained for the continuous manufacturing method.
    [13] By the method described in the claims of the present invention, interlocking means having a geometrically very small structure can be produced so that microadhesion to the closure can be easily performed. Also. The density of the interlocking means proportional to the unit area (cm 2 ) of the backing material can be increased very dramatically, resulting in adhesion between the adhesive closing portions of the closure. Here, it has proved to be particularly good to manufacture the mold cavity and interlocking means in the form of rotationally symmetrical parts, in particular hyperbolic surfaces.
    [14] The method described in the claims of the present invention is described below using one embodiment. The drawings are schematically illustrated and have not been accumulated.
    [19] 1 shows an extruder head as a supply means for plastic, which is supplied in the gap between the molding tool and the pressure tool as a strip in a plastic or liquid state, in particular in a thermoplastic state and having a width corresponding to that of the adhesive closing element to be produced; The parts of the apparatus for carrying out the process according to the invention with 1) are schematically illustrated. The pressure tool is a pressure roller 3. The molding tool is a mold roller designated generally by the designation "5". The two rollers are driven in the rotational direction given in FIG. 1 by curved arrows 7, 9 so that a conveyor gap is formed between these rollers, and the plastic strip is conveyed in the conveying direction through the conveyor gap, and at the same time In the gap as the forming region, the plastic strip is molded into the backing 10 of the adhesive closing portion and the backing 10 is interlocked on the side adjacent to the mold roller 5 by the forming elements of the mold roller 5. Obtain the form required to form
    [20] For this purpose, the mold roller 5 on the periphery is provided with a screen 11 with individual mold cavities 12. One said mold cavity 12 is shown enlarged by the example of FIG. In addition, the mold cavity 12, which is not shown in detail, is regularly distributed with respect to the mold roller 5 having the screen 11 on the outer periphery side, the distribution and number of which can be freely selected. 2 shows a longitudinal cross section of the mold cavity 12 used when the longitudinally opposed peripheral walls 13 are provided with convex paths 14 in series. It is no longer that the two peripheral walls 13, indicated for the rotationally symmetrical structure of the mold cavity 12, are the basic parts of the end forming wall 15 bounded by the screen material 11 of the mold roller 5. There is no need to explain. As the mold cavity 12, interlocking means in the form of a stem portion 17 with a head portion 16 can be produced.
    [21] As further shown in FIG. 2, the curvature of each path 14 in the direction of the molded head portion 16 is made to bend more severely than the direction of the base portion 18, and the stem portion 17 Is connected to the backing 10 through the base portion 18. Viewed in the longitudinal direction of the stem portion 17 in the direction of the head portion 16, it has been found to be particularly good if the path 14 with severely curved curves starts at the middle, preferably the third top.
    [22] In order to obtain the marked cavity 12 with a rotationally symmetrical structure in the form of a hyperboloid, a galvanic coating process has proved effective, where the first cylindrical cavity (not shown) is until the convex path 14 results. Coated with a coating material. In addition, the optically convex path 14 can be fabricated by a laser process from a rigid screen or grating material.
    [23] The interlocking means shown in FIG. 3 can be manufactured by the above process. The symmetrical structure is directly formed by manufacture in the mold cavity 12, as shown in FIG. Possible interlocking means can have a geometrically very small structure, for example, a height of only 0.4 mm and a width of the closure head of about 0.6 mm. In this embodiment, the cross section of the stem portion 17 is about 0.25 mm. In addition, as shown in FIG. 4A, the plurality of interlocking means may be located on the backing 10. The head shape of the head portion 16 need not be further reworked; However, it may be provided in any process, and the head of the interlocking means is processed in a calender process or the like and hung on a calender in that process. It can also be cut at the outer contour of the closed annular head portion 16 in order to obtain a plurality of interlocking means along the head portion 16 in this manner. The interlocking means shown in FIGS. 3 and 4 may in particular have a different contour with respect to the head portion 16, for example with a head geometry, as shown in PCT / WO 00/00053. can do. If, in this case, there is a risk of inadvertently flipping over the edge side free end of the head portion 16 with a hexagonal cross section, each head portion of the arcuate region convex upwards ( The head portions 16 pass through a calender roller such that the intermediate region 20 of 16 takes the form shown in FIG. 3 under conditions such that it arches inwardly (not shown) in the direction of the stem portion 17. The calendar can be hung from the top again. The intermediate region 20, which is surrounded by the hexagonal edge shape of the head portion 16 and shown in FIG. 4 from the upper end, becomes arcuate in the figure when viewed in the perspective direction of FIG. 4 and in this way in contrast to FIG. 3. Form.
    [24] Biologically degradable materials (BAW) are possible as moldable materials for carrying out the process described in the claims of the present invention, and potential materials are also renewable or raw petrochemical materials or a combination of both materials. It can be prepared based on.
    权利要求:
    Claims (10)
    [1" claim-type="Currently amended] In a method for manufacturing an adhesive closing portion having a plurality of interlocking means integrally connected to a backing (10) in the form of a stem portion (17) with a head portion (16) and having a symmetrical structure, the molding Possible material is supplied to the forming region between the pressure tool 3 and the molding tool 5, the plurality of interlocking means being driven such that the backing 10 is formed in the forming region and conveyed in the conveying direction, and facing each other. In the method in which a mold cavity 12 having peripheral walls 13 is used as a forming element in the molding tool 5,
    Viewed in at least the longitudinal section of each mold cavity (12), the opposing peripheral wall (13) is provided with a convex path (14) continuously.
    [2" claim-type="Currently amended] 2. The curved portion of each of the paths 14 in the direction of the molded head portion 16 is produced so as to protrude more severely than the direction of the base portion 18, the stem portion 17 being the base. A method of making an adhesive closing element connected to a backing (10) through a portion (18).
    [3" claim-type="Currently amended] 3. The path (14) according to claim 2, wherein the path (14), with a more severely curved bend when viewed in the longitudinal direction of the stem portion (17) in the direction of the head portion (16), begins at the middle portion, preferably the third top portion. A method of making an adhesive closing element.
    [4" claim-type="Currently amended] 4. The longitudinal section of any one of the preceding claims, wherein some longitudinal sections with convex paths are formed such that the cross section of the stem portion 17 and / or the cross section of the head portion 16 is formed into a polygon, in particular a hexagonal shape. 13) A method of making an adhesive closing element that moves into the corners of 13).
    [5" claim-type="Currently amended] Method according to any one of the preceding claims, wherein each mold cavity (12) is made of a part of the screen (11) or a mold grating of a molding tool (5).
    [6" claim-type="Currently amended] 6. The manufacturing of an adhesive closing element according to claim 5, wherein each part of the interlocking means, preferably the head part 16 and the stem part 17, has a mold grating with its own mold screen 11 or other cross section. Way.
    [7" claim-type="Currently amended] 7. Method according to claim 5 or 6, wherein the mold screen (11) or mold grating is made of a jacket portion arranged around the forming tool (5) in the form of a roll body and connected to the tool.
    [8" claim-type="Currently amended] 8. A method according to any one of the preceding claims, wherein the mold cavity (12) with paths (14) is produced using a laser or by a galvanic coating process.
    [9" claim-type="Currently amended] 9. The size of the mold cavity 12 is selected so that the height and / or width of the interlocking means is between 0.05 mm and 1 cm and the unit area of the backing 10 in cm 2. A method of making an adhesive closing element with up to 500 interlocking means in proportion to
    [10" claim-type="Currently amended] 10. A method according to any one of the preceding claims, wherein the mold cavity (12) and the interlocking means are formed in the form of a rotationally symmetrical part, in particular in the form of a hyperboloid.
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    同族专利:
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    BR0113223A|2003-07-08|
    BR0113223B1|2010-09-08|
    ZA200300780B|2004-02-19|
    CN100358450C|2008-01-02|
    US20040020591A1|2004-02-05|
    DE50110276D1|2006-08-03|
    CA2417227A1|2003-01-29|
    PL362505A1|2004-11-02|
    DE10039937A1|2002-03-07|
    PL202353B1|2009-06-30|
    PT1309257E|2006-10-31|
    CZ300919B6|2009-09-09|
    JP2004505703A|2004-02-26|
    KR100733737B1|2007-07-02|
    CA2417227C|2008-06-03|
    US7198743B2|2007-04-03|
    DK1309257T3|2006-10-16|
    CN1447658A|2003-10-08|
    WO2002013647A2|2002-02-21|
    WO2002013647A3|2002-07-25|
    CZ2003264A3|2003-09-17|
    EP1309257A2|2003-05-14|
    EP1309257B1|2006-06-21|
    AT330500T|2006-07-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2000-08-16|Priority to DE10039937A
    2000-08-16|Priority to DE10039937.1
    2001-07-31|Application filed by 고트립 빈데어 게엠베하 운트 코
    2001-07-31|Priority to PCT/EP2001/008834
    2003-04-23|Publication of KR20030031977A
    2007-07-02|Application granted
    2007-07-02|Publication of KR100733737B1
    优先权:
    申请号 | 申请日 | 专利标题
    DE10039937A|DE10039937A1|2000-08-16|2000-08-16|Method of making an adhesive fastener part|
    DE10039937.1|2000-08-16|
    PCT/EP2001/008834|WO2002013647A2|2000-08-16|2001-07-31|Method for producing an adhesive closing element|
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