US 2018/0169890 A1Published application

Cutting line positioning apparatus, cutting system, non-transitory computer-readable storage medium storing cutting line positioning computer program, and cutting line positioning method

AssigneeRoland Dg Corporation

InventorsTakeshi TOZUKA, Kazutoshi FUNAKOSHI

Life of this patent

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Abstract

A candidate point selection processor selects, as candidate points, vertices on an outline. A search point selection processor selects, from the candidate points, a reference search point to be used to search for a point that serves as a cutting line endpoint. A reference line setting processor sets a reference line connecting a reference point with the search point. A candidate line setting processor sets candidate lines connecting the search point with the candidate points other than the search point. A candidate line selection processor selects, as a selected candidate line, the candidate line located only within a non-effective region. An angle calculation processor calculates an angle between the reference line and the selected candidate line. A cutting line setting processor sets a cutting line connecting the search point with the candidate point of the selected candidate line defining an angle with the reference line that is the smallest angle calculated.

Claims8

Dependent claims

A cutting line positioning apparatus to decide a location of a cutting line on a sheet, the sheet including a base sheet and a top sheet affixed with an adhesive material to a surface of the base sheet and including a target object located thereon, the cutting line serving as a reference line when a cut is made on the top sheet, the top sheet being cut along an outline of the target object on the top sheet by a cutting apparatus, wherein the top sheet includes an effective region that is a region of the top sheet to be left on the base sheet, and a non-effective region that is a region of the top sheet to be removed from the base sheet, the cutting line positioning apparatus comprising:

a storage processor configured or programmed to store a reference point defined in advance on the top sheet;
a candidate point selection processor configured or programmed to select a plurality of vertices on the outline obtained when the outline is represented as a polyline, the vertices each being selected as a candidate point that serves as an endpoint of the cutting line;
a search point selection processor configured or programmed to select, from the candidate points, a reference search point to be used to search for a point that serves as an endpoint of the cutting line;
a reference line setting processor configured or programmed to set a reference line connecting the reference point with the search point;
a candidate line setting processor configured or programmed to set candidate lines including a plurality of lines each connecting the search point with an associated one of the candidate points other than the search point;
a candidate line selection processor configured or programmed to select, as a selected candidate line, the candidate line located only within the non-effective region, and select, as the selected candidate line, the candidate line on the outline when none of the candidate lines is located only within the non-effective region;
an angle calculation processor configured or programmed to calculate an angle between the reference line and the selected candidate line;
and
a cutting line setting processor configured or programmed to set the cutting line connecting the search point with the candidate point of the selected candidate line defining an angle with the reference line that is a smallest angle calculated by the angle calculation processor.

6 more elements

A cutting line positioning method for deciding a location of a cutting line on a sheet, the sheet including a base sheet and a top sheet affixed with an adhesive material to a surface of the base sheet and having a target object located thereon, the cutting line serving as a reference line when a cut is made on the top sheet, the top sheet being cut along an outline of the target object on the top sheet by a cutting apparatus, wherein the top sheet includes an effective region that is a region of the top sheet to be left on the base sheet, and a non-effective region that is a region of the top sheet to be removed from the base sheet, the method comprising:

a candidate point selection step including selecting a plurality of vertices on the outline obtained when the outline is represented as a polyline, the vertices each being selected as a candidate point that serves as an endpoint of the cutting line;
a search point selection step including selecting, from the candidate points, a reference search point to be used to search for a point that serves as an endpoint of the cutting line;
a reference line setting step including setting a reference line connecting the search point with a reference point defined in advance on the top sheet;
a candidate line setting step including setting candidate lines including a plurality of lines each connecting the search point with an associated one of the candidate points other than the search point;
a candidate line selection step including selecting, as a selected candidate line, the candidate line located only within the non-effective region, and selecting, as the selected candidate line, the candidate line on the outline when none of the candidate lines is located only within the non-effective region;
an angle calculation step including calculating an angle between the reference line and the selected candidate line;
and
a cutting line setting step including setting the cutting line connecting the search point with the candidate point of the selected candidate line defining an angle with the reference line that is a smallest angle calculated in the angle calculation step.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/848,214Filed 20 Dec 2017
Priority: JP 2016-24763321 Dec 2016
Published: 21 Jun 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

B26F 1/3806
Cutting-out; Stamping-out: wherein relative movements of tool head and work during cutting have a component tangential to the work surface
B26D 3/085
Making a superficial cut in the surface of the work without removal of material, e.g. scoring, incising: on sheet material
B26D 5/005
Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by…
B26F 1/18
Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor: perforating by slitting, i.e. forming cuts closed at their ends without…