KR102020763B1 - Web cutting apparatus and method with improved process efficiency - Google Patents

Abstract

The present invention relates to a web cutting apparatus and method with improved process efficiency, and more particularly, after removing curls from a plurality of paper sheets supplied from a plurality of unwinder parts using a plurality of decolor parts, using a slitter part. The present invention relates to a web cutting apparatus and a method for improving process efficiency of cutting in a width direction and cutting a paper sheet cut in the width direction in a length direction using a cutter part.

Description

Web cutting apparatus and method with improved process efficiency

The present invention relates to a web cutting apparatus and method with improved process efficiency, and more particularly, after removing curls from a plurality of paper sheets supplied from a plurality of unwinder parts using a plurality of decolor parts, using a slitter part. The present invention relates to a web cutting apparatus and a method for improving process efficiency of cutting in a width direction and cutting a paper sheet cut in the width direction in a length direction using a cutter part.

The web cutting device is a device for cutting the paper sheet supplied from the paper web to the length and width required by the customer. Here, the paper web refers to a rolled paper produced in the papermaking process in the form of a roll, and has various widths and is not uniform in thickness and weight.

In general, the paper web is supplied by unwinding the paper sheet by using the unwinder. As a result, the thickness and weight of the paper web are gradually reduced, and the paper sheet is released faster and the paper sheet is released. Vibration is severely generated, and there is a disadvantage that defective products may occur.

On the other hand, the paper sheet released from the paper web is curled, the web cutting device uses a decolor to remove the curl. In general, the decolor is disposed as a single before cutting the paper sheet, there is a disadvantage that the single decolor is not enough to remove the curl of the paper sheet.

In the present invention, while solving the above problems, to propose a web cutting apparatus and method with improved process efficiency that can be cut more precisely than the prior art for the longitudinal cutting of the paper sheet.

Korea Patent Publication (B1) No. 10-0875278 (Registration Date: 2008.12.15.) Korea Patent Publication (B1) No. 10-0916833 (Registration Date: 2009.09.03.)

The present invention has been made to solve the above problems,

It is intended to form a plurality of unwinders so that a plurality of paper sheets can be supplied.

In addition, the present invention intends to form a plurality of decolored portions to control the shaking of the plurality of paper sheets supplied from the plurality of unwinder portions.

In addition, the present invention is to form a rotation axis of the cutter portion including the knife drum to be inclined at least 10 ° or more relative to the rotation axis of the feed portion to enable precise cutting in the longitudinal direction of the paper sheet.

In addition, the present invention is to form a knife along the longitudinal direction of the knife drum to enable precise cutting in the longitudinal direction of the paper sheet, to be formed to be inclined at least 10 ° relative to the axis of rotation of the knife drum.

Web cutting device with improved process efficiency according to the present invention for achieving this object,

In a preferred embodiment of the present invention, a plurality of unwinder unit for supplying a paper sheet from a plurality of paper web; A plurality of decolor unit for removing the curl of the paper sheet supplied from the plurality of unwinder unit; A slitter unit for cutting the paper sheet from which curl is removed using the decolor unit in a width direction; A feed unit for supplying a paper sheet cut using the slitter unit to a knife drum; And a cutter part for cutting the paper sheet supplied from the feed part in the longitudinal direction using the knife drum.

Further, in a preferred embodiment of the present invention, the decolor unit further includes a potential sensor for controlling the shaking of the paper sheet.

In addition, in a preferred embodiment of the present invention, the knife drum is composed of a pair.

In addition, in a preferred embodiment of the present invention, the rotary shaft of the knife drum is formed to be inclined at least 10 ° relative to the rotary axis of the feed portion.

Further, in a preferred embodiment of the present invention, a knife is formed along the longitudinal direction of the knife drum.

In addition, in a preferred embodiment of the present invention, the knife is formed to be inclined at least 10 ° relative to the axis of rotation of the knife drum.

In addition, a preferred embodiment of the present invention, the conveyor unit for conveying the paper sheet cut from the cutter unit; further includes.

On the other hand, the web cutting method improved process efficiency according to the present invention for achieving this object,

In the method of using a web cutting device according to an embodiment of the present invention, Paper sheet supply step of supplying a paper sheet from a paper web using a plurality of unwinder; A curl removing step of removing curls of the paper sheets supplied from the plurality of unwinders using a decolor unit; A first cutting step of cutting the curled paper sheet in a width direction by using a slitter part; A cutting paper supplying step of supplying a paper sheet cut in the width direction to a knife drum using a feed unit; And a second cutting step of cutting the paper sheet supplied to the knife drum in the longitudinal direction by using the cutter unit.

In addition, in one preferred embodiment of the present invention, the curl removing step is characterized in that the vibration of the paper sheet supplied from the plurality of unwinder unit is controlled using a potential sensor included in the decolor unit.

In addition, in a preferred embodiment of the present invention, after the second cutting step, a conveying step of transferring the paper sheet cut from the cutter unit using a conveyor unit; further includes.

As described above, the web cutter device and method with improved process efficiency according to the present invention,

By forming a plurality of unwinders in the web cutting device, a plurality of paper sheets may be supplied, thereby improving process efficiency.

In addition, the present invention can control the shaking of the plurality of paper sheets supplied from the plurality of unwinder units by forming a plurality of decolor units in the web cutting device, thereby reducing the defective products and improving the process efficiency.

In addition, the present invention is formed in the web cutting device to rotate the rotary shaft of the cutter portion including the knife drum at least 10 ° relative to the rotation axis of the feed portion to accurately cut the longitudinal direction of the paper sheet to improve the process efficiency There is.

In addition, the present invention is formed in the web cutting device along the longitudinal direction of the knife drum, the knife is formed to be inclined at least 10 ° relative to the rotation axis of the knife drum can be precisely cut the longitudinal direction of the paper sheet process There is an effect of improving the efficiency.

1 is a view schematically showing a web cutting apparatus with improved process efficiency according to an embodiment of the present invention.
2 is a view schematically showing a state in which an unwinder unit having improved process efficiency according to an embodiment of the present invention.
3 is a view schematically showing a plane of a cutter unit according to an embodiment of the present invention.
4 is a view schematically showing a knife drum of the cutter unit according to an embodiment of the present invention.
5 is a flowchart schematically illustrating a web cutting method having improved process efficiency according to an embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will be apparent with reference to the embodiments described below in detail. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the embodiments are to make the disclosure of the present invention complete, and those of ordinary skill in the art to which the present invention belongs. It is provided to fully inform the scope of the invention, and the invention is defined only by the scope of the claims.

Shapes, sizes, ratios, angles, numbers, and the like for describing the embodiments of the present invention are exemplary and the present invention is not limited. In addition, in describing the present invention, if it is determined that the detailed description of the related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In the case where 'comprises', 'haves', 'consists of' and the like mentioned in the present specification are used, other parts may be added unless 'only' is used. In the case where the component is expressed in the singular, the plural includes the plural unless specifically stated otherwise.

In interpreting a component, it is interpreted to include an error range even if there is no separate description.

In addition, in the case of the description of the positional relationship, for example, when the positional relationship between the two parts is described as 'on', 'upper', 'upper', 'next to' and the like, One or more other parts may be located between the two parts unless a 'direct' or 'direct' is used.

And, in the case of the description of the time relationship, for example, when the temporal after-term relationship is described as' after ',' following ',' after ',' before ', or the like,' right 'or' It may also include cases that are not continuous unless direct 'is used.

In addition, although the first, second, etc. are used to describe various components, these components are not limited by these terms. These terms are only used to distinguish one component from another. Therefore, the first component mentioned below may be a second component within the technical spirit of the present invention.

In addition, the 'X-axis direction', 'Y-axis direction' and 'Z-axis direction' should not be interpreted only as geometric relationships in which the relations are perpendicular to each other, and within the range in which the configuration of the present invention can function. It may mean having a wider directionality.

Also, it is to be understood that the term 'at least one' includes all possible combinations that can be presented from one or more related items. For example, the meaning of "at least one of the first item, the second item, and the third item" means not only the first item, the second item, or the third item, but also two of the first item, the second item, and the third item, respectively. It can mean a combination of all items that can be presented from more than one.

The features of the various embodiments of the present invention may be combined or combined with each other, partly or wholly, and various technically interlocking and driving are possible, and each of the embodiments may be independently implemented with respect to each other, It may be.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view schematically showing a web cutting apparatus with improved process efficiency according to an embodiment of the present invention, Figure 2 is a schematic view of the state of use of the unwinder with improved process efficiency according to an embodiment of the present invention It is a figure shown.

Referring to FIG. 1, a web cutting apparatus having improved process efficiency may include a plurality of unwinders 100 supplying paper sheets from a plurality of paper webs 10; A plurality of decolor unit 200 for removing the curl of the paper sheet supplied from the plurality of unwinder unit 100; A slitter unit 300 which cuts the paper sheet from which curl is removed using the decolor unit 200 in the width direction; A feed unit 400 for supplying a paper sheet cut using the slitter unit 300 to the knife drum 510; It includes; and a cutter unit 500 for cutting the paper sheet supplied from the feed unit 400 in the longitudinal direction using the knife drum 510.

The unwinder unit 100 is a device for releasing and supplying a paper sheet rolled up by mounting the paper web 10 through rotation, and a plurality of unwinder units 100 are formed in a web cutting device having improved process efficiency.

The decolor unit 200 is a device for removing curls formed by the paper sheet being curled with the paper web 10. The paper sheet supplied from the unwinder unit 100 is transferred to the decolor unit 200 to remove curls. In the web cutting apparatus having improved process efficiency, a plurality of decolor units 200 are formed to correspond to the number of the unwinder units 100. Therefore, the paper sheet is transferred to the slitter unit 300 through the decolor unit 200, in which a plurality of paper sheets are overlapped and transferred to the slitter unit 300.

In addition, the decolor unit 200 further includes a potential sensor 210 for controlling the shaking of the paper sheet. The paper web 10 is supplied to the paper sheet by the unwinder unit 100, and as shown in FIG. 2, the paper web 10 is gradually reduced to reduce the diameter, and the weight is also light. As the diameter of the paper web 10 is reduced and the weight is lighter, the rotation becomes faster and faster, and thus, when the paper sheet is supplied, a shaking phenomenon occurs. The potential sensor 210 can adjust the tension of the paper by changing the position up or down or left and right, thereby controlling the shaking of the paper sheet.

The slitter unit 300 is a device for cutting the paper sheet from which curl is removed using the decolor unit 200 in the width direction. The width to be cut may be adjusted by the set interval of the roll cutter (not shown) mounted on the slitter part 300. For example, it may be cut at intervals of 400 mm to 1700 mm. In addition, it is natural that the number cut in the width direction can be adjusted according to the number of the roll cutters.

The feed unit 400 is a device for supplying a paper sheet cut using the slitter unit 300 to the knife drum 510. Since the paper cut in the width direction is divided into a plurality of paper sheets, they may not be uniformly aligned. The feed unit 400 is to align the paper cut in the width direction to supply to the knife drum 510.

The cutter unit 500 is a device for cutting the paper sheet supplied from the feed unit 400 in the longitudinal direction using the knife drum 510. At this time, the knife drum 510 is composed of a pair, each time a pair of knife drum 510 is rotated to cut the paper sheet supplied from the feed unit 400 in the longitudinal direction. A detailed description of the cutter unit 500 will be described later with reference to FIGS. 3 and 4.

On the other hand, the web cutting apparatus with improved process efficiency further comprises a conveyor unit 600 for transferring the paper sheet cut from the cutter unit 500.

The conveyor unit 600 is a device for conveying a sheet of paper cut in the width direction and the length direction by the slitter unit 300 and the cutter unit 500. The conveyor unit 600 is important to align and transport the sheet of paper without disturbing. Therefore, in order to prevent the sheet from being disturbed, a nip roll unit (not shown) is installed, and the nip roll unit is capable of increasing or decreasing the pressure, thereby pressing the sheet of paper to prevent it from being disturbed and transported. .

On the other hand, the conveyor unit 600 is provided with a self vacuum unit (not shown). This is a device capable of generating a pressure difference between the sheets of paper, and by using them, the sheets of paper can be overlapped and transferred.

3 is a view schematically showing a plane of the cutter unit 500 according to an embodiment of the present invention, Figure 4 is a knife drum 510 of the cutter unit 500, according to an embodiment of the present invention It is a schematic drawing.

Referring to FIG. 3, a knife 511 is formed along the lengthwise direction of the knife drum 510. Such a knife drum 510 is configured in a pair, as shown in FIG. 4, and the knife drum 510. The knife 511 is brought into contact with each turn of the paper, thereby cutting the paper sheet.

On the other hand, the axis of rotation of the cutter unit 500 is inclined at least 10 ° relative to the axis of rotation of the feed unit 400. Therefore, the rotation axis of the knife drum 510 is formed to be inclined at least 10 degrees or more relative to the rotation axis of the feed unit 400, and the knife 511 is at least 10 degrees or more based on the rotation axis of the knife drum 510. It is formed to be inclined.

As such, the rotation axis of the knife drum 510 is formed to be inclined at least 10 ° based on the rotation axis of the feed unit 400, and the knife 511 is inclined at least 10 ° based on the rotation axis of the knife drum 510. When it is formed, the upper and lower surfaces of the paper sheet supplied from the feed unit 400 are obliquely applied to pressure, thereby cutting the paper while reducing the precision and defects.

5 is a flowchart schematically illustrating a web cutting method having improved process efficiency according to an embodiment of the present invention.

Referring to FIG. 5, a web cutting method having improved process efficiency may include a paper from a paper web 10 using a plurality of unwinder units 100 in a method of using a web cutting apparatus according to an embodiment of the present invention. Paper sheet supply step (S10) for supplying a sheet; Curl removal step (S20) for removing the curl of the paper sheet supplied from the plurality of unwinder unit 100 using the decolor unit 200; A first cutting step S30 of cutting the paper sheet from which the curl is removed using a slitter unit 300 in a width direction; Cutting paper supply step (S40) for supplying the paper sheet cut in the width direction using the feed unit 400 to the knife drum (510); And a second cutting step S50 of cutting the paper sheet supplied to the knife drum 510 in the longitudinal direction using the cutter unit 500.

Paper sheet supply step (S10) is a step of supplying a paper sheet from the paper web 10 using a plurality of unwinder unit 100, can be supplied by mounting a plurality of paper web 10 to improve the process efficiency Can be.

The curl removing step (S20) is a step of removing curls of the paper sheets supplied from the plurality of unwinder units 100 using the decolor unit 200, and the decolor unit 200 includes the unwinder unit 100. It may be formed to correspond to the number of. Therefore, the paper sheet is transferred to the slitter unit 300 through the decolor unit 200, in which a plurality of paper sheets are overlapped and transferred to the slitter unit 300.

On the other hand, the curl removal step (S20) is characterized in that the vibration of the paper sheet supplied from the plurality of unwinder unit 100 is controlled using the potential sensor 210 included in the decolor unit 200. Technical features thereof have been described above with reference to FIGS. 1 and 2.

The first cutting step S30 is a step of cutting the paper sheet from which the curl is removed using the slitter part 300 in the width direction, and a set interval of a roll cutter (not shown) mounted on the slitter part 300. You can adjust the width to be cut by. In addition, the number cut in the width direction can be adjusted according to the number of the roll cutter.

Cutting paper supply step (S40) is a step of supplying the paper sheet cut in the width direction by using the feed unit 400 to the knife drum 510.

The second cutting step S50 is a step of cutting the paper sheet supplied to the knife drum 510 in the longitudinal direction by using the cutter unit 500. Technical features thereof have been described above with reference to FIGS. 3 and 4.

On the other hand, after the second cutting step (S50), the conveying step (S60) for transferring the paper sheet cut from the cutter unit 500 using the conveyor unit 600; further includes.

The transfer step S60 is a step of transferring the paper sheet cut from the cutter unit 500 using the conveyor unit 600, and is a step that is performed after the second cutting step S50.

While the embodiments of the present invention have been described in more detail, the present invention is not necessarily limited to these embodiments, and various modifications can be made without departing from the spirit of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments.

Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. The scope of protection of the present invention should be interpreted by the claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

10: paper web 100: unwinder
200: decolor unit 210: potential sensor
300: slitter part 400: feed part
500: cutter 510: knife drum
511: knife 600: conveyor

Claims (10)

A plurality of unwinders for supplying paper sheets from the plurality of paper webs;
A plurality of decolor parts including a potential sensor for controlling the shaking of the paper sheets supplied from the plurality of unwinders by a position change, and removing curls of the paper sheets;
A slitter unit for cutting the paper sheet from which curl is removed using the decolor unit in a width direction;
A feed unit for supplying a paper sheet cut using the slitter unit to a knife drum;
A cutter unit for cutting the paper sheet supplied from the feed unit in the longitudinal direction using the knife drum; And
A conveyor unit which includes a nip roll unit which prevents the paper sheet from being disturbed and a self-vacuum unit which generates an air pressure difference between the paper, and which conveys the paper sheet cut from the cutter unit;
Process cutting efficiency improved web cutting apparatus comprising a.
delete The method of claim 1,
The knife drum is a pair of web cutting apparatus improved process efficiency, characterized in that consisting of a pair.
The method of claim 1,
The rotating shaft of the knife drum is formed to be inclined at least 10 ° or more relative to the rotation axis of the feed unit web cutting apparatus characterized in that the improved process efficiency.
The method of claim 1,
Process cutting device with improved efficiency, characterized in that the knife is formed along the longitudinal direction of the knife drum.
The method of claim 5,
Wherein the knife is formed to be inclined at least 10 ° relative to the axis of rotation of the knife drum Web cutting apparatus improved process efficiency, characterized in that.
delete In the method of using the web cutting device according to any one of claims 1, 3 to 6,
A paper sheet supplying step of supplying a paper sheet from a paper web using a plurality of unwinders;
A curl removing step of removing curls of the paper sheets supplied from the plurality of unwinders using a decolor unit;
A first cutting step of cutting the curled paper sheet in a width direction by using a slitter part;
A cutting paper supplying step of supplying a paper sheet cut in the width direction to a knife drum using a feed unit;
A second cutting step of cutting the paper sheet supplied to the knife drum in a longitudinal direction by using a cutter unit; And
A conveying step of conveying a paper sheet cut from the cutter part using a conveyor part; Web cutting method with improved process efficiency comprising a. delete delete

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