摘要:
The invention relates to a method for welding laminate-like packaging materials (4a, 4b, 5) which have a plastic material on the surfaces to be joined by welding, without contacting said surfaces with welding tools. To be able to interrupt the welding abruptly and resume it thereafter without spoilage, whereby the thermal energy required to provide the welding temperature is preferably generated by economically feasible means, the invention provides for a laser beam to be used as welding energy. The laser beam preferably has a constant output power and the surfaces to be welded are moved in the form of packaging material webs (5) in relation to the fixed point of incidence where the laser beam strikes the at least one material web.
摘要:
Es wird ein Verfahren zum flächigen, dichten Verbinden verschiedener Lagen (1,1') eines flächigen Materials (2) vorgestellt, welches Energie einspart, und dennoch ohne Verarbeitung zusätzlicher Materialien auskommt. Dieses Verfahren dient zum flächigen, dichten Verbinden wenigstens zweier Lagen eines flächigen, flexiblen Materials, insbesondere eines Verpackungsmaterials (1,1'), ohne primäre Wärmezufuhr. Hierbei geschieht die Versiegelung des Materials mittels Beaufschlagung der Kontaktfläche (6) zwischen den Lagen mit Ultraschall-Wellenstrahlung und gleichzeitigem Aufbringen von Druck quer zur Kontaktfläche (6).
摘要翻译:该方法使扁平,柔性材料层之间的平坦,密封连接,尤其是。 包装,没有原料。 供热。 材料(2)通过用超声处理接触表面,在与它们成直角作用的压力下被密封。 县。 材料不膨胀,容易燃烧,特别是。 纸。 它具有可以如上焊接的涂层。 超声波与兼容的或兼容的涂层结合在一起。 合适的材料包括60-80g / m 2的纸,涂覆有15-20μm的聚乙烯或20μm的聚丙烯。 使用20-40kHz的超声波,长度为300-130mm,超声波尖端为30-40kp / cm 2。
摘要:
An embodiment of the present invention discloses a method and a machine for realising containers (900), comprising at least steps of: impressing a shape in relief on a sheet (905) of deformable material, enveloping the sheet about itself and reciprocally joining lateral flaps thereof in order to form a tubular blank(915), and closing a bottom end of the tubular blank.
摘要:
The invention relates to a method for producing packaging (18) from paper material (5), in particular paper, cardboard or paperboard, said method comprising the following steps: forming packaging (18) from a blank (19) made of paper material (5), which paper material overlaps at at least one joining site (21); positioning the at least one joining site (21) between a sonotrode (2) and an anvil (3); applying the joining site (21) with a joining force in a joining force direction (6); and making the sonotrode (2) ultrasonically vibrate in order to ultrasonically weld the paper material (5) at the joining site (21), which method is characterised in that the paper material (5) is moistened, preferably on the inner sides of the joining sites (21), before forming the packaging (18) and/or while forming the packaging (18) and/or after forming the packaging (18) and/or during the ultrasonic welding.
摘要:
The present invention relates to improvements in the manufacture of packaging, in particular of tubes for containing viscous fluids such as toothpaste, hair gel, cosmetic creams, food paste or the like. There is provided in a first aspect a method of manufacturing a tube having an elongate tube body (1) and a polygonal cross section comprising the steps of:
a) forming creases in sheet material (15); b) using the creases in the sheet material (15) to locate and orient the sheet material during manufacture of the tube; c) forming the tube body (1) in a polygonal form from said sheet material (15) such that the creases form edges (3) of the tube; and d) applying a pre-formed shoulder (5) and a cap (4) to a first end of the tube body (1).
摘要:
A method and a device for pasting a strip tape (2) onto a packaging web (1) includes a liquid pouring hole (5) wherein the edges of said liquid pouring hole are overlapped by an area of said strip tape and air is blown to said area in order to loosen said strip tape from said edges and to deposite said strip tape only onto said packaging web.
摘要:
An embodiment of the present invention discloses a method and a machine for realising containers (900), comprising at least steps of: impressing a shape in relief on a sheet (905) of deformable material, enveloping the sheet about itself and reciprocally joining lateral flaps thereof in order to form a tubular blank(915), and closing a bottom end of the tubular blank.
摘要:
An embodiment of the present invention discloses a method and a machine for realising containers (900), comprising at least steps of: impressing a shape in relief on a sheet (905) of deformable material, enveloping the sheet about itself and reciprocally joining lateral flaps thereof in order to form a tubular blank(915), and closing a bottom end of the tubular blank.
摘要:
The present invention relates to improvements in the manufacture of packaging, in particular of tubes for containing viscous fluids such as toothpaste, hair gel, cosmetic creams, food paste or the like. There is provided in a first aspect a method of manufacturing a tube having an elongate tube body (1) and a polygonal cross section comprising the steps of:
a) forming creases in sheet material (15); b) using the creases in the sheet material (15) to locate and orient the sheet material during manufacture of the tube; c) forming the tube body (1) in a polygonal form from said sheet material (15) such that the creases form edges (3) of the tube; and d) applying a pre-formed shoulder (5) and a cap (4) to a first end of the tube body (1).