Cutting device

Patent metadata

Field	Value
Publication number	US-11213966-B2
Application number	US-201916580971-A
Country	US
Kind code	B2
Filing date	Sep 24, 2019
Priority date	Mar 31, 2017
Publication date	Jan 4, 2022
Grant date	Jan 4, 2022

Abstract

A cutting device includes a platen, a mounting portion, a first movement mechanism, a second movement mechanism, a detector, a processor, and a memory. The memory is configured to store computer-readable instructions that, when executed by the processor, instruct the processor to perform processes. The processes include acquiring cutting data, acquiring a contact position output by the detector when the cutting blade comes into contact with the holding member, and controlling the first movement mechanism in accordance with the cutting data to move the mounting portion and the holding member to a cutting start position. The processes include controlling the second movement mechanism, at the cutting start position, to move the mounting portion in the third direction to a cutting position set on the basis of the contact position, and controlling the first movement mechanism in accordance with the acquired cutting data to perform cutting processing.

First claim

What is claimed is:

1. A cutting device comprising:
a platen configured to support a holding member, the holding member being configured to hold a cutting object to be cut;
a mounting portion mounted with a cutting blade;
first movement mechanisms, one of the first movement mechanisms having a first motor configured to move the holding member placed on the platen and the mounting portion relative to each other in a first direction, another of the first movement mechanisms having a second motor configured to move the holding member placed on the platen and the mounting portion relative to each other in a second direction intersecting the first direction;
a second movement mechanism having a third motor configured to move the mounting portion in a third direction causing the mounting portion to approach the platen and a fourth direction causing the mounting portion to separate from the platen, the third and fourth directions being directions intersecting the first and second directions;
a detector configured to output a position of the mounting portion in the third direction;
a processor configured to control the first movement mechanisms and the second movement mechanism; and
a memory configured to store computer-readable instructions that, when executed by the processor, instruct the processor to perform processes comprising:
acquiring cutting data;
controlling the first movement mechanisms to move the mounting portion relative to the holding member in the first direction and the second direction to a predetermined position, in a state in which the cutting blade mounted on the mounting portion and the holding member placed on the platen are separated from each other;
controlling the second movement mechanism, at the predetermined position, to cause the mounting portion to approach the platen, and acquiring a contact position, the contact position being a position of the mounting portion in the third direction output by the detector when the cutting blade comes into contact with the holding member;
after controlling the second movement mechanism to cause the cutting blade mounted on the mounting portion and the holding member to be separated, controlling the first movement mechanisms in accordance with the acquired cutting data to move the mounting portion and the holding member relative to each other to a cutting start position at which the mounting portion faces the cutting object held by the holding member, the cutting start position being a different position from the predetermined position;
controlling the second movement mechanism, at the cutting start position, to move the mounting portion in the third direction to a cutting position set on the basis of the acquired contact position; and
performing cutting processing to cut the cutting object using the cutting blade mounted on the mounting portion by controlling the first movement mechanisms in accordance with the acquired cutting data to move the holding member placed on the platen and the mounting portion relative to each other in the first direction and the second direction.

2. The cutting device according to claim 1 , wherein
the computer-readable instructions further instruct the processor to perform processes comprising:
adjusting an orientation of the cutting blade by cutting the holding member at the predetermined position; and

the acquiring the contact position includes performing processing that acquires the contact position during a period in which processing to adjust the orientation of the cutting blade is being performed.

3. The cutting device according to claim 1 , wherein
the computer-readable instructions further instruct the processor to perform a process comprising:
setting, as the cutting position, a position at which the mounting portion is moved in the third direction from the acquired contact position by a predetermined distance that is less than a thickness of the holding member.

4. The cutting device according to claim 1 , wherein
the computer-readable instructions further instruct the processor to perform processes comprising:
determining, during a period in which the cutting object is being cut on the basis of the cutting data, whether the position output by the detector is a separated position that is further in the fourth direction than the contact position; and
when the position output by the detector is the separated position, re-cutting the cutting object using the cutting blade, on the basis of the acquired cutting data.

5. The cutting device according to claim 1 , wherein
the computer-readable instructions further instruct the processor to perform processes comprising:
determining, during a period in which the cutting object is being cut on the basis of the cutting data, whether the position output by the detector is a separated position that is further in the fourth direction than the contact position, for each cutting line segment represented by the cutting data, and
performing the cutting processing relating to a re-cutting line segment, which is the cutting line segment determined to have a portion for which the position output by the detector is the separated position.

6. The cutting device according to claim 5 , wherein
the performing the cutting processing relating to the re-cutting line segment includes, after controlling the first movement mechanisms in accordance with the cutting data and relatively moving the mounting portion to a cutting start position of the re-cutting line segment, controlling the second movement mechanism, moving the mounting portion in the third direction to the cutting position, and performing the cutting processing relating to the re-cutting line segment.

7. The cutting device according to claim 1 , wherein
the second movement mechanism is provided with a pressure changing member configured to change a pressure applied to the mounting portion in the third direction, and
the computer-readable instructions further instruct the processor to perform processes comprising:
identifying a pressure correspondence value corresponding to the pressure applied to the mounting portion when the mounting portion is moved in the third direction to the contact position; and

the performing the cutting processing includes controlling the second movement mechanism on the basis of the identified pressure correspondence value and cutting the cutting object using the cutting blade mounted on the mounting portion.

8. The cutting device according to claim 7 , wherein
the computer-readable instructions further instruct the processor to perform processes comprising:
cancelling execution of the cutting processing when, at the cutting start position, the mounting portion is not able to move in the third direction to the cutting position even when the predetermined pressure in the third direction is applied to the mounting portion by the pressure changing member, and
issuing a warning when the execution of the cutting processing is cancelled.

9. The cutting device according to claim 8 , wherein
the cancelling the execution of the cutting processing includes cancelling the execution of the cutting processing on the basis of a change amount of the position detected by the detector corresponding to the pressure correspondence value applied to the cutting blade.

10. The cutting device according to claim 7 , wherein
the computer-readable instructions further instruct the processor to perform a process comprising:
when, at the cutting start position, the mounting portion is not able to move in the third direction to the cutting position even when a predetermined pressure in the third direction is applied to the mounting portion by the pressure changing member, repeating the cutti

Assignees

• Brother Ind Ltd

Inventors

• Sugiyama Kentaro
• Nakamura Yoshinori
• Niizeki Tomoyasu

Classifications

• B26D5/00

  Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting · CPC title

• B26D5/06 Primary

  by electrical means · CPC title

• B26D2007/2678

  for cutting pens mounting in a cutting plotter · CPC title

• B26D7/2628

  Means for adjusting the position of the cutting member · CPC title

• B26D2005/002

  Performing a pattern matching operation · CPC title