Creasing machine, creasing cylinder for the creasing machine and method for creasing sheets
An indentation machine and indentation technology, which is applied to indentation of sheets made of cardboard or foil, especially in the field of cartons, can solve problems such as short life, achieve long service life, small wear, and reduce manufacturing the effect of time
Active Publication Date: 2020-03-06
BOBST MEX SA
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, the lifetime of such creasing tools is significantly shorter than that of creasing tools including etched steel plates
Method used
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[0068] exist figure 1 , schematically shows the creasing machine. It comprises a conveyor system 10 for advancing a sheet material 12 through a creasing area 14 in which folding creases can be applied to the sheet material 12 .
[0069] Additional processing stations 16, 18 may be provided as part of or associated with the creasing machine. The processing stations 16, 18 may be used to cut, fold, glue, or otherwise process the sheet 12 or articles produced therefrom.
[0070] The sheet 12 may be made of cardboard, carton or foil, and may subsequently be processed to cut blanks from the sheet to form packages, boxes, bags, envelopes or similar products.
[0071] The sheet material 12 may be supplied to the creasing area 14 individually as shown in the figures or in the form of a continuous web guided through the creasing area 14 .
[0072] It is also possible to integrate a cutting system into the creasing area 14 which allows the individual blanks to be separated from the s...
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Abstract
The invention relates to a creasing machine having a creasing tool (14, 20, 21), a counter element (22, 23) cooperating with the creasing tool, and a transportation system (10) for advancing sheets (12) through a creasing area between the creasing tool (14, 20, 21) and the counter element (22, 23), the creasing tool having a creasing plate (24) provided with at least one creasing projection (26),characterized in that the creasing projection (26) on the creasing plate is constituted by a plurality of small, plastically deformed areas which merge into each other so as to form the creasing projection (26). The invention also relates to a creasing plate (24) adapted for being used in a creasing machine according to any of the preceding claims, the creasing plate (24) being made from sheet metal and comprising at least one creasing projection (26) formed from a plurality of small, plastically deformed areas which merge into each other so as to form the creasing projection. Further, the invention relates to a method for creasing sheets (12), in particular made from paper, cardboard or foil, comprising the following steps: data regarding folding creases (30) to be applied to the sheet (12) is provided. A control (60) determines if a suitable creasing plate (24) is available in an inventory or if a new creasing plate (24) is to be manufactured. Based on the determination of the control (60), either an existing creasing plate (24) is retrieved from the inventory (62) or a new creasing plate (24) is manufactured by using a punching module (40) for applying a plurality of small deformations to a creasing plate blank (24'), the deformations constituting at least one creasing projection (26). The creasing plate (24) is mounted on a creasing tool (20, 21), and the creasing tool (20,21) cooperates with a counter element (22, 23) for applying folding creases (30) to sheets (12) advanced through a creasing area between the creasing tool (20, 21) and the counter element (22, 23).
Description
technical field [0001] The invention relates to a creasing machine having a creasing tool, a counter element cooperating with the creasing tool and means for advancing a sheet through the creasing area between the creasing tool and the counter element Conveyor system, the creasing tool has a creasing plate provided with at least one creasing protrusion. The invention also relates to a creasing plate suitable for use in a creasing machine, and to a method of creasing a sheet, in particular of carton, cardboard or foil. Background technique [0002] A creasing machine is used to create one or more indentations in a sheet, from which a folded blank is cut. Each indentation forms a sort of "hinge" that allows the later-formed blank to fold at well-defined locations. [0003] A creasing machine can be formed as a device or system, which can be a stand-alone unit or integrated into a larger machine or system such as a printing press or a finishing machine. [0004] Sheets can b...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B31F1/10B31B50/25
CPCB31F1/10B31B50/256B31F1/08B31B50/252B31B50/56
Inventor R·瓦尔特里奥Y·鲁兰
Owner BOBST MEX SA