Process and apparatus for connecting material webs
AssigneeFocke & Co. (GmbH & Co.)
InventorsHeinz Focke, Jens Renken, Harald Freudenberg
Life of this patent
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Abstract
Process and apparatus for connecting material webs, namely one end of a new web (34) to one end of a runoff web (58). The new web (34), on the one hand, and run-off web (29), on the other hand, are each gripped individually, and stopped, by clamping parts (49, 50; 51, 52). The run-off web (29) and new web (34) are then severed. The fixed web ends--run-off end (58) and new, initial portion (59)--are positioned in a common plane by the clamping parts (49, 50; 51, 52) and connected to one another by a tape (60).
Claims22
A process for connecting material webs made of packaging material or the like, namely a new, initial portion (59) of a new web (34) to a run-off end (58) of a run-off web (29), by adhesive bonding or by a tape (60), wherein the run-off web (29) and the new web (34) are gripped by clamping means and severed, and the resulting run-off end (58) is connected to the new, initial portion (59), said process comprising the steps of:
- individually gripping in clamping means the run-off web (29), on the one hand, and the new web (34) on the other hand, and severing an initial part (35) and an end part (36) from the new web (34) and the run-off web (29), respectively;
- and
- positioning the resulting web ends, namely the run-off end (58) and the new, initial portion (59), adjacent to one another in a common plane for the purpose of connecting the web ends or attaching the tape (60).
An apparatus for connecting material webs made of packaging material or the like, namely a new, initial portion (59) of a new web (34), wound on a new reel, to a run-off end (58) of a run-off web (29) wound on a run-off reel, wherein the run-off web (29) and the new web (34) are gripped by clamping parts (49, 50;
- 51, 52) and the run-off web (29) and new web (34) are severed by a severing cutter (56) for the purpose of forming ends--the run-off end (58) and the new initial portion (59)--which are adapted to be connected to one another by a tape (60), characterized in that the clamping parts (49, 50) and (51, 52) are respectively assigned to the run-off web (29) and the new web (34), are actuatable independently of one another for the purpose of fixing the run-off web (29) and new web (34), respectively, said apparatus comprising:
- means for severing the run-off web (29) and the new web (34) one after the other and
- means for moving the clamping parts with the severed webs into a common plane for the purpose of attaching the tape (60).
An apparatus for gripping an initial portion of a new web (34) wound as a new reel, characterized in that a web pickup (44) has a gripper (67), which is movable back and forth, for griping an initial part (35) of the new web (34), wherein the gripper (67) has at least two web-retaining elements (69, 70), into which, when open, is introduced a formed loop (73) of the new web (34) in order to be gripped in a clamping manner;
- and
- in that, for the purpose of gripping the new web (34) by the gripper (67), the apparatus comprises means for pushing together sections of the web to form a sideways-directed loop (73) in a region of the retaining elements (69, 70), said retaining elements being located on the gripper (67) for the purpose of gripping the new web (34).
An apparatus for gripping a free end of a new material web (34) wound as a reel, said apparatus comprising
- a web pickup (44) for gripping the material web and having a gripper (67), said web pickup being movable back and forth, and said new web being transported away by a corresponding movement of the gripper (67)
- said web pickup comprising means for pushing together a section of the web, thereby forming a sideways-directed loop (73);
- and
- means for inserting said loop (73) into a position between two clamping jaws (69, 70) of the gripper (67).
Dependencies are inferred from the claim text.