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    • 2. 发明申请
    • METHOD AND DEVICE FOR WELDING PROFILED ELEMENTS MADE OF A PLASTIC MATERIAL, IN PARTICULAR PVC
    • 用于焊接塑料材料,特别是PVC的配方元件的方法和装置
    • US20150367568A1
    • 2015-12-24
    • US14765569
    • 2014-02-04
    • Andrea VACCARIGRAF SYNERGY S.R.L.
    • Andrea VACCARI
    • B29C65/00B29C65/20
    • B29C66/52431B23C3/305B29C65/2015B29C65/2061B29C65/2092B29C65/305B29C65/749B29C65/7841B29C66/0224B29C66/02245B29C66/1162B29C66/322B29C66/326B29C66/71B29C66/72523B29C66/81411B29C66/81427B29C66/81457B29C66/8167B29L2031/005E06B3/9608Y10T156/17B29K2027/06
    • The method for welding profiled elements made of a plastic material, in particular PVC, comprises the steps of: preparing two profiled elements (3) made of a plastic material, arranged with respective zones to be welded (4) facing one another; heating the zones to be welded (4); before the heating step, the step of making a groove (19) in correspondence to a peripheral edge of each of the zones to be welded (4); coupling the zones to be welded (4) to one another, by pressing the profiled elements (3) against one another to keep the zones to be welded (4) in reciprocal contact, the step of coupling the zones to be welded (4) defining a sub-step of melting the zones to be welded (4) into one another to define a welding bead and comprising the sub-steps of: arranging pressing means (27, 28) in correspondence to the grooves (19) to define, in collaboration with the grooves (19), a containing compartment (19a) of the welding bead, the pressing means (27, 28) comprising: a first work surface (62) having a protruding portion (63); and a second work surface (64) of final finishing; and displacing the pressing means (27, 28) alternately between: an idle position moved away from the profiled elements (3); a first work position wherein the first work surface (62) is abutted on the grooves (19) with the protruding portion (63) located inside the containing compartment (19a) to deviate the welding bead towards the side walls (61) of the containing compartment (19a); and a second work position wherein the second work surface (64) is abutted on the grooves (19) so as to obtain a finished welding bead.
    • 用于焊接由塑料材料(特别是PVC)制成的异型元件的方法包括以下步骤:制备两个由塑料材料制成的成型元件(3),所述成型元件(3)被布置成彼此相对的待焊接区域(4); 加热要焊接的区域(4); 在加热步骤之前,对应于要被焊接的每个区域(4)的周缘形成凹槽(19)的步骤; 将待焊接区域(4)彼此连接,通过将成型元件(3)彼此压靠以使得要被焊接的区域(4)保持往复接触,将要焊接的区域(4)连接的步骤 限定将要焊接的区域(4)熔化成彼此的子步骤,以限定焊接珠,并且包括以下子步骤:对应于所述凹槽(19)布置按压装置(27,28),以限定, 与凹槽(19),焊珠的容纳室(19a)协同工作,所述按压装置(27,28)包括:具有突出部分(63)的第一工作表面(62); 和最终精加工的第二工作表面(64); 并且在两个离开所述异形元件(3)之间的空闲位置之间交替地移动所述按压装置(27,28); 第一工作位置,其中所述第一工作表面(62)抵靠在所述凹槽(19)上,并且所述突出部分(63)位于所述容纳室(19a)内,以使所述焊接珠朝向所述容纳部分的侧壁(61)偏离 隔间(19a); 以及第二工作位置,其中第二工作表面(64)抵靠在凹槽(19)上,以便获得成品焊道。
    • 8. 发明申请
    • MACHINE FOR SEALING PLASTIC PROFILED ELEMENTS
    • US20190224923A1
    • 2019-07-25
    • US16310433
    • 2017-07-05
    • Graf Synergy S.r.l.,
    • Andrea VACCARI
    • B29C65/78B29C65/20B29C65/00
    • The machine (1) for sealing plastic profiled elements comprises: a base frame (6); retention means (7, 8) of at least a profiled element (P) of plastic material having a first main face (2), a second main face (3), a first lateral face (4), a second lateral face (5) and respective areas to seal (Z), the retention means (7, 8) being associated with the base frame (6) and comprising a first support element (7) movable along a first direction of sliding (A) and a second support element (8) mounted on the first support element (7) and movable relative thereto along a second direction of sliding (B); a heat-sealing element with heated plate (11), having two mutually opposite surfaces on which the areas to seal (Z) to be heated are placeable in contact; sliding means (9, 10) of the retention means (7, 8) adapted to shift the profiled elements (P) between a position of reciprocal moving away and a position of mutual approach wherein the heated areas to seal (Z) are joined together; wherein the machine (1) comprises positioning means (13, 14) associated with the support elements (7, 8) and adapted to receive a portion of one of the lateral faces (4, 5); locking means (15, 28) movably associated with the retention means (7, 8) and adapted to keep the profiled elements (P) in a locking configuration wherein one of the main faces (2, 3) is kept into contact with one of the support elements (7, 8) and one of the lateral faces (4, 5) is arranged into contact with the positioning means (13, 14), and wherein the locking means (15, 28) prevent the profiled elements (P) from rotating around the longitudinal axis of the profiled elements themselves.