ES2676069T3 - Method to cut a stack of labels - Google Patents

Abstract

Procedure for cutting initial label stack 5 (5) for the manufacture of design cutting labels for a complete stack (2) of sheet-shaped material, including the following steps: a) Supply of a complete stack (2 ) of sheet-shaped material of printed thematic labels (7), in which the thematic labels (7) are printed in rows of uniform lines and rows in the sheet-shaped material (1) and oriented towards a reference edge (R) of the sheet-shaped material (1); b) Cutting the entire stack (2) into several strip stacks (3) by cutting (4) respectively of the entire stack (2) between the rows in a first cutting direction perpendicular to the reference edge (R); c) Trimming several initial label stacks (5) of the strip stack (3) by cutting (6) respectively of the strip stack (3) in a cutting direction parallel to the reference edge (R), using the reference edge (R) as the positioning side (A).

Description

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Description Technical sector

The present invention relates to a process for trimming initial label piles for the production of cutting labels to design a complete stack formed of sheet-shaped material.

Technical background

In the production of cut-to-design labels, that is, non-rectangular labels, the roll or sheet material is printed with the theme of the label, and is joined in a complete stack formed by printed sheet-shaped material. The entire stack is cut in a flat cutting machine into strip piles, and the piles of strips are cut into piles of initial labels, which are then punched out into a die-cutting device to become a stack of usable labels.

Label printing on roll or sheet material is normally oriented at the reference edge of the roll or sheet material, which also serves as a reference edge for joining the entire stack. In a traditional cutting process, the part opposite the reference edge of the entire stack is cut in a first phase, parallel to the reference edge at a certain distance from the printing of the label, which then serves as the reference side for the Cut the various stacks of initial labels. The distance generally corresponds to half the distance between two adjacent thematic tags. In this way, later, stacks of initial labels of the same dimension can be cut. In a second phase, the entire stack is cut with a cut in the direction perpendicular to the direction of the reference edge in several stacks of strips.

Then, in a third phase, the strip batteries are cut, using the placement side previously cut to the battery stop, cutting the stack of strips in a cutting direction parallel to the placement side, in several initial label piles. The placement side serves in each case as a reference for each cut. When you cut the initial label stack of the strip stack, you start with the initial label stack that is further away from the placement side. The initial label stacks are then converted into the device for punching into usable label stacks.

10 A flat cutting machine for trimming initial label stacks of a complete stack is known for example in EP1018408. In EP1018408, the entire stack of sheet-shaped material is first cut into its four edges, and then divided into strips and initial label stacks. Also in this case, the positioning side is defined for the subsequent cutting of the initial label stack by cutting the entire stack.

A problem that exists in traditional processes is the inaccuracy of the cutting of the placement side, which influences the subsequent cutting 20 of the initial label stacks, causing higher deviations in the stack of usable stamped labels.

Explanation of the invention.

A task of the invention is to indicate a method of cutting piles of 25 initial labels respectively of stacked usable label piles, in which deviations in the initial label piles are minimized and the cutting tolerance is optimized.

This is achieved with a method according to claim 1. The process for trimming the initial label piles for the manufacture of design cutting labels, formed of material

in sheet form, it comprises the following phases: a) Preparation of a complete stack in printed sheet material with thematic labels. So that the thematic labels are printed in rows of uniform lines and columns in the material in the form of a printed sheet, and that it is oriented towards a reference edge of the sheet-shaped material; b) Cutting the entire stack into several strip piles by cutting the entire stack between rows with cutting direction perpendicular to the reference edge; c) Cutting several stacks of initial labels of the strip stack with a cut of the stack of strips with cutting direction parallel to a reference edge, so that the reference edge serves as the placement side.

When stamping the sheet-shaped material, a reference border is used where the thematic labels are oriented in an exact position. For the stamping of the sheet-shaped material and 15 for trimming the initial label stacks of the strip stack, the same side is used respectively as a reference, or as a placement side. This means that the reference edge is used as the placement side for all cuts, to form the initial label stacks. Cutting errors, common in the traditional process, which arise when making a first cut of a placement side, are avoided because the print reference edge is used directly as the placement side for cutting the batteries initial tags In this way the cutting tolerance is optimized.

25 Thematic labels can be printed on the sheet-shaped material, within a uniform and rectangular grid, preferably in uniform lines and rows. These thematic labels on the sheet-shaped material are in the entire stack, matching one on top of the other so that each stack of

Initial tags have a stack of thematic tags matching one on top of the other.

The cuts to trim the initial label stack are made with a precisely defined distance to the thematic labels, to facilitate an exact die cut later. In some designs, cutting to cut the entire stack can be done in rows piles midway between adjacent lines of thematic labels. Also, in some designs, the stack of strips can be cut in the label stack at the midpoint between the 10 adjacent lines of the thematic labels.

In some designs, it is possible, before cutting a first initial label stack, according to phase c), to make a cut parallel to the reference edge and with a predetermined distance to the thematic labels 15 of the first initial label stack. In this way, stacks of initial labels of the same dimension can be cut later. Generally, the default distance corresponds to half the distance between two adjacent thematic tags.

In accordance with the present invention, the reference edge is maintained, which defines the exact position of the thematic label as the placement side for all cuts to form the initial label stack, in which the last initial label stack It differs in the size of each stack of strips from the distance of the reference edge width compared to the remaining initial label stack. If the distance of the reference edge is large enough, a final cut can also be made to cut a stack of row stack labels between the last thematic label and the reference edge, so that all the label stacks have the same length.

Stacks of cut labels, with or without distance from the reference edge, can then be transformed into a die-cutting device, into usable label stacks. To do this, the initial cut-off label stack is transported to a die-cut channel of a die-cutting machine for the manufacture of usable label stacks, having to place at least one movable treadmill against the stops of the initial label stack. facilitate the orientation and direction of the initial label stack. The movable treadmill, which moves diagonally to a die cutting machine, makes an orientation of the initial label stacks possible, which are cut with different lengths, that is, with or without distance from the reference edge of the stacking stack. strips The side opposite the reference edge of each initial label stack, which has the same distance to the thematic label in all the initial label stacks, is used as the fixing side for the tracer.

The present invention also has a device for manufacturing initial label stacks of a complete stack including a flat cutting machine, formed in such a way that it is capable of performing the cutting method according to the present invention, as well as a device to punch The die-cutting device has a movable treadmill for the orientation and direction of the initial label stacks within a die-cutting channel. The movable treadmill is designed in such a way that it is movable and can be placed against the tops of initial label stacks of different lengths. The abutment side of the initial label stack is the side opposite the reference edge of the initial label stack, which shows the same distance to the thematic label on all initial label stacks.

Brief description of the drawings

In the accompanying drawings, an embodiment of the present invention is illustrated by way of example. It shows:

Fig. 1 is a schematic representation of the traditional procedure;

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Fig. 2 is a schematic representation of the method according to the present invention;

Fig. 3 is a schematic representation of the strip stack cut;

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Fig. 4 is a schematic representation of a stamping device for initial label stacks of different length.

20 Preferred Embodiment of the Invention

Figures 1 (a) to 1 (e) show the traditional procedure for trimming the initial label stacks 5 of a complete stack 2 of printed sheet material 1. Figure 25 1 (a) shows the sheet-shaped material 1, with thematic labels

7 printed on uniform lines and columns, forming rows, in which the printing is oriented along a reference edge R of the sheet-shaped material 1. Therefore, the printing maintains a certain distance (edge distance of reference X) of the reference edge R, indicated with a dashed line. This zone

It is also known as margin of desmallado. Label printing can be done on a roll (figure 1 a.1) - printing on rolls) which is then cut into sheets, or directly on sheet material (Fig. 1 (a.2) - sheet printing). Several sheets of the sheet-shaped material 1 are joined together to form a complete stack 2. The respective thematic labels are arranged in congruent successive layers. In a first phase (Figure 1 (b)) of the traditional procedure, the opposite side 8 is cut (cut 9) to the reference edge R of the complete stack 2 parallel to the reference edge R with a predetermined distance of the impression of labels 7. This trimmed side serves at a later stage as placement side A for trimming the initial label stacks 5, as will be explained later.

In a second phase (Fig. 1 (c)) the entire stack 2 is cut into several 15 stacks of strips 3. For this, a cut 4 is made respectively between two adjacent rows along the direction of perpendicular cutting towards the edge reference R.

Then, in a third and fourth phase (Figure 1 (d) and Figure 1 (e)) the stacks of strips 3 are cut respectively in several stacks of 20 initial labels 5. For this, a cut 9 is first made on the side from the reference edge R at a predetermined distance towards the printing of labels 7 (Fig. 1 (d)). As the positioning side A for cutting 9, the previously cut side is used, that is, the side opposite the reference edge. The cutting 9 is carried out along the cutting direction, parallel to the positioning side A.

The initial label piles 5 (Fig. 1 (e)) are then cut by means of the cut-outs 6, which are transported to a stamping device for punching the usable label piles, starting with the stack farthest from the placement side A. For the cut 6, the trimmed side 8 of the entire stack is also used in

the first phase (Fig. 1 (b)) as placement side A. The cut 6 is made along a cutting direction, parallel to the positioning side A.

Figures 2 (a) through 2 (d) show a representation

5 schematic of the process according to the present invention for cutting the initial label stack 5 of a complete stack 2 of printed sheet-shaped material 1. The printing of the sheet-shaped material 1 is performed, as explained in Fig. 1 (a), with alignment on the reference side R.

In contrast to the traditional procedure, in the process according to the present invention, the entire stack 2 is cut in a first phase (Fig. 2 (a)) directly into several stacks of strips 3. In addition, a cut 4 is made between the rows in the direction of cut perpendicular to the reference edge R. The cut 4 is preferably made midway between two rows of adjacent thematic tags. In a second and third phase (Fig. 2 (b) and Fig. 2 (c)) the stacks of strips 3 are cut into several stacks of initial labels 5. For this a first cut 9 is first performed. This is found in the reference edge R, or on the opposite side 8 of the positioning side at a predetermined distance towards the printing of labels 7 (Figure 2 (b)). This predetermined distance preferably corresponds to half of the distance between two thematic labels 7. The reference edge R. is now used as placement side A for cutting 9. Cutting 9 is carried out along a parallel, parallel direction of cut. 25 next to the positioning side A, respectively to the reference edge R.

By using the reference edge R as the positioning side A, the cut can be dispensed with for the definition of a positioning side A, usual in the traditional procedure. In this way the cutting tolerance is optimized for the following cuts of the initial label piles 30.

The initial label piles 5 (Fig. 2 (c)) are then cut by means of the cuts 6, which are then transported to a die-cutting device for the stamping of the stack of usable labels. For cutting 6, the reference edge R 5 is also used as the positioning side A. The cutting 6 is carried out along a second cutting direction, parallel to the reference edge R and preferably midway between the labels adjacent themes.

In the procedure of Fig. 2, the edge of reference R is therefore maintained, which defines the exact position of the thematic labels 7 as placement side A for all the cuts for the formation of the initial label stack 5, 5 ', in which the last initial label stack 5' varies from each stack of strips 3 in size, compared to the initial label stack 5, in the width of the difference 15 of a reference edge X. Fig. 2 (d) shows, next to each other, an initial label stack with and without distance from the reference edge X.

In Fig. 3 the second and third phase according to Fig. 2 (b) and Fig. 2 (c) are shown in a simplified cutting system. The cutting system 20 shows a cutting blade 10 and a stack stop 11. The stack of strips 3 is placed with the reference edge R, respectively with the positioning side A next to the stack stop 11, which moves after each cut 9, 6 in the direction of advance of the cut B, until all the initial label piles 5, 5 'are cut from the stack of strips 25 3. After cutting, all the label piles 5 have the same

length d, except the last stack of labels 5 '. The last stack of labels 5 has the length d plus the width of the cut of the reference edge X.

Fig. 4 shows, in a rather simplified representation, a die cutting system for the manufacture of label stacks

Usable (dashed line in the stack of start labels 5, 5 '). The die-cutting system includes a lifting device system 12 for pushing the initial label stack 5, 5 'for die-cutting in the direction of die-cutting C by means of a sharp blade 13. 5 In addition, it includes a movable ram 14 to support the label stack Initial 5, 5 'with different lengths d, d + x (Fig. 2 (d)) in a die-cutting channel 15 and to align it for the die-cutting. The treadmill is movable (arrow D). In Fig. 4 (a) the die cutting system is shown with a stack of labels 5 of length d (without cutting 10 of the reference edge X). In Fig. 4 (b) the die cutting system is shown with a stack of labels 5 'of length d plus the cutting of the reference edge X, this corresponds to the last initial label stack 5' respectively of a stack of strips 3, as explained above.

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Naming list

1 sheet-shaped material

2 full battery

20 3 stack of strips

4 cut perpendicular to the reference edge 5, 5 initial label stack

6 parallel cut to placement side A

7 label printing

25 8 opposite sides

9 first cut

10 cutting blade

11 stack stop

12 lifting device

30 13 perforating blades

14 treadmill

15 die cutting channel Beside placement

B cutting feed direction system 5 C die direction

d initial label stack length R reference edge X reference edge cut

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Claims (7)

Claims 5 1. Procedure for initial label stack trimming (5) to the manufacture of cutting labels to design a complete stack (2) of sheet-shaped material, including the following steps: a) Supply of a complete stack (2) of material in the form of 10 sheet of thematic labels (7) printed, in which the thematic labels (7) are printed in rows of uniform lines and rows in the sheet-shaped material (1) and oriented towards a reference edge (R) of the sheet-shaped material (1); 15 b) Cut the entire battery (2) into several strip batteries (3) by cutting (4) respectively of the entire stack (2) between the rows in a first cutting direction perpendicular to the reference edge (R); c) Trimming several stacks of initial labels (5) from the stack of 20 strips (3) by cutting (6) respectively of the stack of strips (3) in a cutting direction parallel to the reference edge (R), using the reference edge (R) as the positioning side (A). 2. Method according to one of the preceding claims, characterized in that the cut (4) is made to cut the stack complete (2) at the midpoint between two adjacent rows of thematic labels (7). Method according to one of the preceding claims, characterized in that the cut (6) of the stack of strips is made. (3) at the midpoint between two adjacent rows of thematic labels (7). 4. Method according to one of the preceding claims, characterized in that a first cut (9) is made parallel to the reference border (R), with a predetermined distance to the thematic labels (7), before cutting a first stack of initial labels (5). Method according to claim 6, characterized by the fact if the default distance corresponds to half the distance between two thematic tags (7). Method according to one of the preceding claims, characterized in that the label stack is cut in phase c) initials (5) furthest from the reference edge (R) of the strip stack (3) or the remaining strip stack. Method according to one of the preceding claims, characterized in that the stack of cut labels has been transported. (5, 5 ') in a die-cutting system (15) for the manufacture of usable label stacks, where a movable tracer (13) is placed against the stops to hold and direct the initial label stack 5, 5 'with the initial label stack (5, 5'). 25 8. Device for manufacturing initial label piles of a complete stack (2) including a flat cutting machine, where it develops the method according to one of claims 1 to 7, the flat cutting machine having a cutting knife (10) and 30 a stack stop (11), which can be moved after each cut 5 10 fifteen twenty 25 30 (9; 6) by means of a cutting advance direction system (B), as well as a die cutting system, arranged by a movable treadmill (14) for orientation and guidance of the initial label stack (5, 5 ') of different lengths (d, d + x).