JPS62213997A - Method and device for cutting sheet of paper or film to various rectangular size - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Application The present invention relates to a method and apparatus for cutting sheets of paper or film into various rectangular sizes.

[Prior art]

Particularly in the case of printed sheets on which drawings, graphs, etc. are printed using a plotter, it is necessary to secure the sheets on the sheet and cut them to the correct size using a machine to a size that can be obtained at will for each size. Such situations require longitudinal and transverse cutting of the paper sheet at various positions depending on the size. In the past, it was common to cut to size manually or with simple cutting equipment.

[Problem of invention]

The problem to be solved by the present invention is to cut a relatively long sheet of paper by mechanically cutting it in the longitudinal and transverse directions to fit various rectangular sizes contained on the paper sheet. The object of the present invention is to obtain a method and apparatus that can be used.

In particular, in this case, so that only the cut size remains,
The resulting paper or film waste must be automatically rejected.

[Summary of the invention]

The object of the invention is achieved by a method according to the characterizing part of patent claim 1 and a device according to the % minute part of claim 3.

According to the present invention, various sizes can be obtained in any order, and drawings, which can be organized, for example, with a plotter, can be produced immediately in the format from a sheet of paper or film that provides continuity, while avoiding manual work. It can then be cut.

〔Example〕

Hereinafter, with reference to figures showing one embodiment according to the present invention, the following will be described.
The present invention will now be described in detail.

This device is useful for cutting a continuous "paper sheet 1" into various rectangular sizes in a longitudinal cutting 9 and a transverse υ manner.The size of this food is continuously displayed on the paper sheet by means of a plotter or the like. The various independent sizes will then come together in a random arrangement.

In Figure 1, A3 (297X420mm), A2
(420x594mmJ, AO(841Xl189m
m), A4 (210 x 297 mm). To ensure that each size is cut to the correct size from the paper sheet 1, a transverse cut 22 is carried out on the one hand, and longitudinal cuts 24a, 24b, 24c are carried out on the other hand. The control of the cutting device, which performs such longitudinal and transverse cutting, is carried out by a code 20 applied to the edge of the nine paper sheets 1 by the plotter for each size.

The apparatus in which such longitudinal and transverse cutting is carried out is illustrated in FIG. The paper sheet 1 coming from the plotter is guided into the guiding slit 2 and is also captured by two mutually opposed suppression rolls 3.4. For transport, the paper sheet 1 is guided in the horizontal channel 6 in the direction of the arrow and past the sensor 5 . This sensor reads the code 20 stamped on the edge of the sheet 1 by the plotter.

Subsequent pressure roll T or 8 and electrical clock generator 2
1 is connected. This clock oscillator is dependent on the rotational movement of the suppression roll 7.8 and thereby sends a signal to the control device in response to the feeding movement of the paper sheet 1. The paper sheet 1 then reaches a transverse cutting machine 9. This transverse cutting machine has nine transverse cutters fixed firmly on the cutter shaft.
1 with a cutter shaft 10. and a mating cutter 12 held vertically on a static holder 18. The cutter shaft 10 pivots in the direction of arrow B as soon as a corresponding control command is issued from the control device. When a transverse cut is performed, known removable joints clamp. This transverse cutter 9 spans the entire length of the paper sheet 1, and the cutter shaft 10 performs the transverse cutting action 22 shown in FIG. Directly connected to this transverse cutting machine 9 there is a selectively actuated sorting gate 13 by means of which the strip-shaped intermediate pieces 23 - waste - cut by the transverse cutting machine 9 are carried out in the longitudinal direction. It is not guided by the direction cutting device, but is sent in the direction of the arrow.

Across the entire width of the paper sheet 1, there is an electromagnetic mechanism 43 with a tensioning rod 45 for pivoting the sorting gate 13, which is wedge-shaped in cross section. The tensioning rod is interlocked with a connecting piece 4T which is rotatable around the shaft 51. Electromagnetic machine $111
43 is fully attractive, the tensioning rod 45 returns to the spring 53.
moves downward against the force of the sorting gate 13.
The tip of the cross-cutting machine moves upwards, thereby deflecting the cut intermediate piece 23 downwards, in the direction of the arrow, into the transverse cutter. The cutting machine with the cutting edge further reaches a longitudinal cutting unit 26, which is described in detail below with reference to FIGS. 3 to 5. A plurality of selectively used longitudinal cutting units 26
are distributed over the width of the sheet 1°.

Longitudinal cut to size 2 e.g. 24a or 24b
These units are selectively utilized when cuts such as 25c to 25c are made. Of course, these three longitudinal cuts 24a-24c as shown in FIG.
should be taken only as an example, and its corresponding interval can be adjusted to a desired size.

According to the diagrams in FIGS. 3 to 5, such longitudinal cutting scissors fl! 26 has one upper circular cutter 36 and one lower circular cutter 56, which interlock within the cutting cavity [49]. As a result, the rectangular regular paper cut on all four sides is delayed between the other press rolls 14 and '15, and is sent to the second sorting gate. This sorting gate is operated so that the descending waste material 25 is reversed and guided, and the marked sheets cut to the correct size are sent as they are to the remainder, and then to a folding device, for example. do.

The transverse cutter 9 is driven by a drive belt 19, which is particularly advantageously constructed as a toothed belt and which is connected to a drive motor, which is not explicitly shown in FIGS. 1 and 2. It is in a linked state. The drive belt 19 is
The cutting cutter is guided through an axis, by which rotational movement is transferred via a further toothed belt 16 to the pusher belt 4.
, 8 and 15. Various shafts are supported at both ends of side 1117.

Hereinafter, the structure and operation of each longitudinal cutting unit 26 will be explained in detail with reference to FIGS. 3 to 5. A plurality of such longitudinal units 26 are distributed across the entire width of the paper sheet 1.

The spacing is selected in particular in such a way that it can be cut to DIN standard sizes. These units are arranged on a transverse rail 28 at a distance from each other so that the longitudinal cuts 24a-24c are made at the predetermined locations. The electromagnetic mechanism 27 is screwed to a transverse rail 28, and this rail has a vertical direction of 11#.
40.

Such a cutting unit 26 can be slid along the transverse rail 28 at will and fixed in a desired position. Granger 29 inserted into electromagnetic mechanism 27 is moved in the direction of arrow C when energized.

The return is effected by a spring 30 arranged at the end of the coil, the deforming force of which can be adjusted by means of an adjusting nut 31. ! The connection between the magnetic mechanism 27 and the tumbler 33 is made by a double-shaped holder 55. The plunger 29 is hingedly connected to a bolt 32, which bolt is screwed onto the bolt side with a tumbler shaft 34 and projects radially from this tumbler shaft. The tumbler shaft 34 is held by a U-shaped holder 39, and the tumbler 33 is rotatably held in the K position. It has support rolls 38 disposed on both sides of. Support roll 3
8 and the circular cutter 36 are mounted on ball bearings 50 according to FIG.
It is rotatably viewed from the shaft 41 via the shaft 41. Gripping of the shaft 41 takes place by means of screws 52, which pass through one support carrier on each side. The other end of such support carrier 37 is connected to the collar 4.
2, and the collar 42 is rotatable relative to the tumbler shaft 34. The tumbler 33 is pushed upward by a wire spring 35 mounted laterally. Furthermore, a helical spring 44 is arranged in the interior space surrounding the tumbler shaft 34 of the collar 42 and is arranged in the direction of the arrow E (fourth Figure) acts so that a force is exerted in the direction. Thereby, the pin 46 projecting radially from the tumbler 4i1t134 at the end comes into contact with a cam plate 48 fixed to the side of the holder 39.

When the electromagnetic mechanism 27 is energized, the plunger 29 moves in the direction of arrow C.
direction, and in the process exerts a forward impact on the bolt 32, whereby the tumbler 33 performs a downward pivoting movement.

As a result, the supporting roll 38 comes into contact with the mating pressure roll 54 on the driven shaft 60. On the shaft 60 is a lower circular cutter 56 which is adapted to rotate with the shaft 60. The upper circular cutter 36 on the tumbler 33 is slightly lowered to the side of the circular cutter 56 when the tumbler is lowered, as is clear from FIG.

When the tumbler 33 is lowered, the tumbler 33 is
After the lowering of , an axial movement of the upper circular cutter 36 towards the lower circular cutter 56 is planned in the direction of the arrow E. After the support roll 38 comes into contact with the mating pressure roll 54, the pivoting movement of the tumbler shaft 34 causes the t&ftpcf bin 46 to move between the tumbler shaft 34 and the cam plate 4.
8 (Fig. 4), and thereby the tumbler shaft 3
4 performs an axial movement in the direction of arrow E, whereby the cutting cutter 36 acts under the low pressure of the spring 14 against the adjacent front end surfaces of the circular cutters 56. According to this method, when the tumbler 33 swings, the 100-round cutter 36
．． 56 injuries avoided.

The control of the longitudinal cutting unit used is carried out by means of a code 20 plotted on the edge of the paper sheet 1 by means of a plotter. This code 20 is preferably constructed in the known barcode format and is read by the sensor 5 and converted into a corresponding control signal in the control unit. The cord 20 thus controls both the transverse cutting machine 9 and also the selection of at least one longitudinal cutting unit 26 . Instead of two codes 20 corresponding to the beginning and end of each drawing size, it is possible to have a single code containing all the necessary information.

The code 20 present at the edge of the sheet has equally spaced black and white lines, fields t or columns tW, which is known from FIG. Such a field is scanned by a sensor 5 during the course of the transport movement and a corresponding signal is sent to the control device. The first field 29 in the 6th position is always painted black and connects the connection for the transverse cutter 9, so that the first cut across the entire width of the paper sheet 1 is made. The next field 30 of codes is sent to the first sorting gate 13. When this field 30 is in a solar eclipse, the electromagnetic mechanism 43 is not excited, and the sorting gate 13 is placed in the static state shown in FIG. is sent to the longitudinal cutter 26. If, instead, this field 30 is painted black, the electromagnetic mechanism 43 is energized throughout the control device, which causes the intermediate piece 23 to be guided as waste downwards in the direction of the arrow. and then guided into the container. Directly connecting fields 29.30 correspond to individual longitudinal cutting units 26;
Longitudinal cutting unit 2 with 7 total control commands
Exists for 6.

However, other numbers of such field or longitudinal cutting units 26 are also possible.

As can be seen from FIG. 7, the first hot field 29 corresponding to the transverse cutter is in a position coinciding with the front edge 22 of the piece to be cut.

The cutting at the rear edge is effected by the presence of the cord at the sheet end in the form of a black field 29. The front edge 22 of the next sheet is made by making the next transverse cut 22 at a short distance, e.g. about 5-6 mm. Again, the aforementioned code 20 is marked on the edge, and this code 20 is clearly seen in FIG.

When measured in the longitudinal direction of the sheet, the width of the coding field 29 or 30 should obtain a dimension of approximately 1.8 mm, or 16 mm for a total of 9 fields.
This results in a total barcode length of 2 mm.

When the trailing edge of the sheet and the leading edge of the trailing sheet are simultaneously formed by cutting with the transverse cutter 9, the waste strip 23 is separated and lowered, and the tumbler 13 remains in its lowered, inactive position.

Viewed in the direction of movement of the paper sheet 1, the fir direction cutting unit 2
The second sorting gate, VK inkstone 6, acts to guide the waste, leaving labeled cut rectangular paper pieces of the intended size to avoid manual waste sorting.

As can be seen in FIG. 8, the second sorting gates 62 following the longitudinal cutting unit take the form of sorting gates, each fixed and pivotable about nine horizontal shafts 64. In each space between two adjacent longitudinal cutting units 26 there is a sorting gate 82, which sorting gates can be pivoted independently of one another. The rocking movement of each sorting gate 62 is performed by an electromagnetic mechanism 66 arranged inside the growing object T1. The plunger 6B of the electromagnetic mechanism 66 is in contact with a tensioning block 70 which is rigid with respect to the shaft 64, and is connected to the tensioning block 70 by means of a transverse pin T2. The foot of the electromagnetic mechanism 66 facing the plunger 68 is supported by a plate 74. When the electromagnetic mechanism 6B receives a current, the plunger 68 works to send out the electromagnetic mechanism 6B. Since the plunger 68 is supported by a link against the stationary tension block 70, the foot of the electromagnetic mechanism 66 presses the sorting gate 62i upwardly to the position shown in broken lines. In such a position, the mold tip 78 enters the horizontal movement path of the paper sheet 1;
It serves to invert the waste material 25 during WIF. When the electromagnetic mechanism 66 is retracted, the tension spring 82 serves to return the selection gate 62 to the inactive position shown in solid lines.

The swinging of the sorting gate 62 can also be effected, in some applications, by a direct mechanical connection with the rotatable cutting cutter 36.

In FIG. 9, an embodiment of the sorting gate operation is shown. The electromagnetic mechanism 66 of the second sorting gate is
It rests on a tangible rail 6T that penetrates and exhibits static behavior and assumes a horizontal state, which is rigidly fixed to the machine frame. The sorting gate 62 and the two plates 73 are firmly in contact and pass through the fixed horizontal shaft 64 with a slight clearance, so that each sorting rail 62
It is designed to be able to turn in 164 turns. The plunger 68 of the electromagnetic mechanism 66 fits in a link in the slit of the plate 73 under υ@64 by the pin T5. The electromagnetic mechanism 66 is located at the bottom of the tank so as to exhibit traction, so that the current is abruptly switched on.
The plunger moves in the direction of arrow G. As a result, the tip T8 is rotated to the position shown by the solid line in the opposite direction of the arrow N.

The tension spring 82 is placed in the open state when the sorting gate 62 is de-energized by the electromagnetic mechanism 66, so as to assume the high pivot position shown at the break line in FIG. At this high rotation position, the waste 25 is guided downward in the direction of arrow F and reaches the waste container. When the electromagnetic mechanism 66 receives current, the sorting gate 62 accepts the position shown in solid lines in FIG. 9, and the fed rectangular sign sheet cut on all sides reaches the platform T9;
From the and\, it is further processed and can be sent to a folding machine, for example.

1, the magnetic mechanism 66 is in particular arranged parallel to the electromagnetic mechanism 27 of the respective longitudinal cutting unit 26, so that an associated control mechanism is dispensed with. This is because one line sorting gate 62 must be provided for each swinging tumble 33.

In FIG. 10, seven longitudinal cutting units 26a, 26b, 26c, '26d are shown as an example.

2fie, 26f, and 26g are shown. These longitudinal cutting units correspond to the longitudinal cutting units illustrated in FIGS. 3 to 5, and if a longitudinal cutting operation is to be performed, the upper circular cutter 36 can be selectively guided to the lowered position by operation of a corresponding electromagnetic mechanism 27. In the embodiment shown in FIG. 10, longitudinal cutting units 26a, 26f
, 26g are placed in the lowered, active cutting position, while the other cutting units are subject to non-cutting position agitation. Since the regular paper 65 to be cut needs to have a width B, the paper sheet 1 is separated into strips 86 and 25 on the left and right sides, and is separated in the direction of the arrow F by the high-turn sorting gate 62. be guided. As a result, the identification paper 65, which has been cut on all four sides, generally reaches the delivery table T9.

When a narrower standard paper 65 is to be cut, this width is determined by the other longitudinal cutting units 26;
Correspondingly wider or narrower debris is then conducted through the further high-swivel selection gate 62. The actuation of the second selection gate 62 can take place in direct connection therewith, simultaneously and parallel to the longitudinal cutting cutter 26 brought into the cutting position, but as a result there is a further effect on the actuation of this selection gate. (added code), no modification of the control mechanism is required.

Since a narrow edge band must always be separated from the sheet 1, at least on the side that is provided with the cord 20, such an external screening gate is statically configured and always located in the high-swivel position.

Since the vertical cutting unit 26 can be configured in various ways in the horizontal direction, it is possible to cut a size having any desired width, but it is usually limited to a fixed size according to a standard.

By skillfully combining various sizes, it is possible to make the waste relatively small, for example, by combining style A3 with style A4 arranged laterally.

Instead of paper sheets, basically rigid plastic films can also be used.

[Brief explanation of drawings]

Figure 1 is a top view of a paper sheet that is to be cut to size, Figure 2 is an upright sectional view of the device, and Figure 3 is a longitudinal cutting unit. FIG. 4 is a top view of the longitudinal cutting unit shown in FIG. 3, and FIG. 5 is a cross-sectional view of the longitudinal cutting unit shown in FIG. 6 is a diagram showing a cord attached to the edge of a sheet, FIG. 7 is a diagram showing a sheet of paper or film to which a cord is attached, and FIG. 9 is an upright sectional view of a variant of the selection gate following the longitudinal cutting unit, and FIG. 10 is a top view of the longitudinal cutting device. 1 ・ ・ ・ ・ Sea), 3.4, 7, 8, 14° 15... Press roll, 9... Lateral cutting machine, 1
3... Sorting gate, 20... Code, 26...
...Longitudinal cutting unit.

Claims (13)

[Claims] (1) A method of cutting sheets of paper or film into various rectangular sizes.
From 1), cut transversely to the longitudinal direction of the sheet (22
), the partial pieces with the desired length are separated; by using at least one of a plurality of longitudinal cutters (36, 56) distributed over the width of this sheet. , this separated partial piece is subsequently cut in the longitudinal direction of the sheet by cutting (24a to 24c); the control of the longitudinal and transverse cutting is controlled by the cords (20) corresponding to the respective sizes. and the reversal guidance of the waste material after transverse and longitudinal cutting is likewise operated by a cord (20); characterized in that the edge of the sheet 1 is marked with a cord (20) How to cut sheets into various rectangular sizes. (2) The code (20) is configured as a barcode; the first mark (29) controls the transverse cutter (9); the subsequent mark controls the first sorting gate (13), A method according to claim 1, characterized in that a reversal guidance is carried out; and the subsequent marking (30) is utilized for controlling the longitudinal cutting unit and the second waste sorting gate (62). . (3) In a device for cutting sheets of paper or film into various rectangular sizes, a transverse cutting unit (9) spanning the entire width of the sheet (1) is used for cutting transverse cutting (22
) are present for carrying out longitudinal cuts (24a, 24b, 24c); longitudinal cutting units (26) distributed distributed over the width of the sheet are present;
These cutting units can be selectively moved between a cutting position and a non-cutting position; there is a control device comprising a sensor (5) that scans a code on the sheet (1); such a control device cutting sheets of paper or film into various rectangular sizes, characterized in that the function is to influence the use of the transverse cutting unit (9) and to select at least one longitudinal cutting unit to be used; Device. (4) There are a plurality of longitudinal cutting units (26); all of these cutting units are in the same cross section with the sheet (1), and this longitudinal cutting unit (26) is in the sheet conveying direction (D). 4. Device according to claim 3, characterized in that it is followed by a transverse cutting unit (9) at. (5) The longitudinal cutting unit (26) has a circular cutter (3
6), each having one tumbler (33) by which the circular cutter (36) can be swiveled into the cutting position; and a mechanical adjustment mechanism (34, 46,
48); this adjustment mechanism causes an axial sliding (E) of the circular cutter (36) in contact with the counter cutter (56).
Apparatus according to paragraph or paragraph 4. (6) The first circular cutter (56) is set so as not to rotate on the driven shaft (60); the second circular cutter (36) disposed on the tumbler (33) has a parallel rotation axis and has an electromagnetic mechanism (27); in the pivoting position of the tumbler (33), both circular cutters (36, 56) operate in the cutting gap (
49) and fit together; the shaft adjustment mechanism (46,
6. Device according to claim 5, characterized in that 48) is on the tumbler (33). (7) At least one support roll (38) on the side of the upper circular cutter (36) resting on the tumbler (33).
is present; this support roll (38) has a lower circular cutter (
on the shaft (60) of the tumbler shaft (34), and is determined to exhibit interlocking properties with at least one mating support roll; There is a bolt (32) facing towards it; the tumbler shaft (34) is in contact with a cam plate (48); this cam plate is on the counter support roll (54) after contacting the support roll (38); , tumbler shaft (34
) and an axial movement (E) of a circular cutter (36) resting on a tumbler (33). (8) the first spring (35) attempts to force the tumbler (33) into the non-cutting position; the second spring (44) forces the axially movable tumbler shaft (34) against the cam plate (48); ; The cam plate (18) is penetrated by the tumbler shaft (34); and a pin (46) protruding from the tumbler shaft (34) and interlockingly connected to the electromagnetic mechanism (27) is connected to the cam plate (48). 8. A device according to claim 7, characterized in that: (9) Longitudinal and horizontal cutting units (26, 9)
In addition to the code (20) that controls the waste (23,
8. According to any one of claims 3 to 8, there is a separate code (20) for controlling at least one sorting gate that guides in a different direction (25, 86). equipment. (10) The first sorting gate (13)
) following the transverse cutting unit (9); and a second set of individually movable sorting gates (62) following the longitudinal cutting unit (26) to cut from the cut sheets (65) of the predetermined size. Claim 9, characterized in that the waste material (23, 25, 86) is separated.
Equipment described in Section. (11) The electromagnetic mechanism (66) is controlled in proportion to the electromagnetic mechanism (27) for at least some of the second sorting gates (62), and the longitudinal cutting unit (26) is cut by this latter electromagnetic mechanism. 11. Device according to claim 10, characterized in that it can be moved into position. (12) There are a plurality of second sorting gates (62), each of which is connected to the adjacent longitudinal cutting unit (62).
26) are located between and behind each other; and this second
The sorting gates (62) each have a tip (78) which can be actuated by an electromagnetic mechanism (66); this tip swings into the path of movement of the sheet (1) or waste (25, 86). 12. Device according to claim 10 or 11, characterized in that it is accessible by means of a computer. (13) A second sorting gate (62) following the longitudinal cutting unit (26) is open when the electromagnetic mechanism (86) is not energized and serves to divert the waste (25) downwards. 13. Apparatus according to claim 12, characterized in that: