JPH0718557Y2 - Cutting device for cutting plotter - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention, when the cutter is moved from the non-cutting position to the cutting operating position to perform the cutting operation,
In a cutting plotter in which the direction of the blade edge of the cutter is made to follow the movement direction of the carriage head as the carriage head moves, when the cutter is moved from the cutting operation position to the cutting inoperative position, it is held in the direction of the cutting edge. Cutting device

[Prior Art] As this type of cutting plotter, for example, a sheet-shaped member such as an adhesive sheet is used, and characters or the like are cut out in a bag-like shape in the form of an XY plotter and used for display. It has been known.

This cutting plotter supports a cutter on a carriage head that moves a sheet-shaped member along X and Y directions so as to be able to move up and down relatively with respect to the carriage head along an axis, and around the axis. It is supported so that it can rotate relative to the carriage head, and the blade edge is offset with respect to its axis, that is, the rotation axis of the cutter, and the cutter moves from the cutting inoperative position to the cutting operating position. When performing the cutting operation to cut the sheet-shaped member, the cutting axis of the cutter precedes the cutting edge of the cutter, and the cutting edge of the cutter follows the moving direction of the carriage head to perform the cutting process on the sheet-shaped member. It is supposed to be given.

Here, for example, as shown in FIG. 3, a housing 22 that forms a uniaxial line 20 along the vertical direction and rotatably supports a cutter 21 is locked to a holder 23 so that the holder 23 can be raised and lowered. The rotating magnetic member 25 is provided on one side of the cutter 21 while being supported by the carriage head 24, and the holder 23 is provided with a pair of opposite surfaces facing each other with the cutter 21 interposed therebetween, each facing surface having a different polarity. The fixed magnetic members 26 and 27 are provided by using a mounting member 28 that surrounds the cutter 21 in a U-shape, and a rotating magnetic member.
The surface side of 25 is an S pole, and the facing surfaces of the fixed magnetic members 26 and 27 are S poles and N poles, respectively, and the rotating magnetic member 25 is always fixed by a magnetic force acting between these magnetic members. The member 26 is repulsed, and the fixed magnetic member 27 is attracted to the position (the position shown in FIG. 3) by turning, that is, the cutting edge 29 of the cutter 21 is directed in a predetermined direction. What has been done is conventionally known.

According to this, when the cutting operation is performed by lowering the cutter 21, the direction of the blade tip 29 of the cutter 21 follows the moving direction of the carriage head 24 against the bias based on the cutting resistance with the sheet-shaped member. On the other hand, when the cutter 21 is raised and moved from the cutting operation position to the cutting inoperative position and the cutting edge 29 is separated from the sheet-like member to stop the cutting operation, the cutting edge 29 is directed in the predetermined direction, and the direction thereof is changed. Is held to correspond to the next cutting operation.

For example, it is described in detail in JP-A-61-109692.

[Problems to be Solved by the Invention] In the conventional cutting plotter described above, since the cutter 21 is constantly urged by a magnetic force in a predetermined direction, the cutting operation is performed by lowering the cutter 21. At this time, when the moving direction of the carriage head 24 is different from the predetermined direction, the cutting edge 29 is a sheet-shaped member due to the unevenness generated on the base plate due to the limit of the plane accuracy of the base plate on which the sheet-shaped member is placed. In the case of floating from above, the cutting resistance between the cutting edge 29 and the sheet-shaped member that causes the direction of the cutting edge 29 of the cutter 21 to follow the moving direction of the carriage head 24 is lost, and the cutting edge 29 is different from the moving direction of the carriage head 24. The careless rotation of the cutter causes blind movement of the cutter, making it difficult to continue the cutting process. When the cutter 21 is frequently raised and lowered, for example, when a cutting process for forming stitches such as perforations formed by repeating cutting lines is to be performed, the cutter 21 is raised and the cutting edge 29 is a sheet-shaped member. Each time the tool is moved away from and the cutting operation is stopped, the cutting edge 29 faces a direction different from the moving direction of the carriage head, and therefore the cutting operation is performed for the cutting operation.
Each time 21 is lowered, the sheet-shaped member is cut with the cutting edge 29 facing the different direction, in other words, the direction of the cutting edge 29 at the end point of the cutting line and the cutting edge at the starting point of the next cutting line. Therefore, the cutting line is different from the direction of 29, and the cutting line is inclined with respect to the moving direction of the carriage head 24, and the cutting process cannot be performed well, which is a problem.

The present invention has been made in view of the above conventional problems, and an object thereof is to move a cutting edge from a cutting inoperative position to a cutting operating position to perform a cutting operation so that a cutting edge of a carriage head When the cutter is moved from the cutting operation position to the cutting non-operation position and the cutting operation is stopped without applying a force to the cutter in a direction different from the moving direction, the cutting edge is not changed in direction. Even if the blade edge is lifted from the sheet-shaped member by holding the orientation and affecting the unevenness of the base plate on which the sheet-shaped member is placed, the blade edge is inadvertently turned in a direction different from the moving direction of the carriage head. The cutting process can be continued smoothly without causing the so-called blind movement of the cutter, and
The frequency of movement of the cutter along the axial direction is high compared to the movement distance of the carriage head, for example, when performing cutting processing for stitch formation such as perforations formed by repeating short cutting lines, Cutting that secures the cutting line along the moving direction of the carriage head without making the direction of the cutting edge at the end point of the cutting line and the direction of the cutting edge at the start point of the next cutting line the same, and can perform good cutting processing It is to provide a cutting device for a plotter.

[Means for Solving the Problems] In the present invention, in order to solve the above-mentioned conventional problems,
The carriage head is supported by a carriage head that moves along a sheet-shaped member to be cut so as to be able to move relative to the carriage head along one axis, and the carriage head has the carriage around the axis. A carriage supported so as to be rotatable relative to the head is provided, and when the cutter is moved along the axis from the cutting inoperative position to the cutting operating position to perform the cutting operation, In a cutting plotter in which the direction of the blade edge of the cutter is made to follow the movement direction of the carriage head along with the movement, the cutter is between the carriage head and the cutter is inoperative from the cutting operation position along the axis line to the cutting operation position. As it moves to the position, frictional force is applied to control the blind movement of the cutter. A cutting plotter characterized by comprising friction applying means for releasing the restriction as the cutter is moved from the inoperative position to the inoperative position along the axis for the cutting operation of the cutter. It proposes a cutting device.

[Operation] With the above configuration, the present invention exerts a frictional force between the cutter and the carriage head as the cutter moves from the cutting operation position to the cutting non-operation position along the axis line. And a friction imparting means for releasing the restriction as the blind movement of the cutter is moved along the axis from the cutting inoperative position to the cutting operating position for the cutting operation of the cutter. When performing the cutting operation by moving the cutter from the cutting inoperative position to the cutting operating position, a force that directs the blade edge in a direction different from the moving direction of the carriage head is not applied to the cutter, while
When moving the cutter from the cutting operation position to the cutting non-operation position and stopping the cutting operation, hold the direction without changing the direction of the cutting edge, and be affected by the unevenness of the base plate on which the sheet-shaped member is placed. Even when the blade edge rises from the sheet-shaped member, the cutting process can be continued smoothly without the blade edge pointing in a direction different from the moving direction of the carriage head. The frequency of movement along the axis direction is high, for example, when performing cutting processing for stitch formation such as perforations formed by repeating short cutting lines, the direction of the cutting edge at the end point of the cutting line Make sure that the cutting line is the same as the direction of the cutting edge at the start point of the next cutting line, and that the cutting line is the same direction as the carriage head movement direction. It can make the cutting process better.

[Embodiment] An embodiment of a cutting device in a cutting plotter according to the present invention will be described in detail with reference to the drawings.

Here, the cutting plotter, for example, by moving the carriage head 3 in the X and Y directions along a sheet-like member 2 such as an adhesive sheet horizontally placed on the substrate 1,
The cutter 4 supported by the carriage head 3 cuts out characters and the like in the shape of a bag character in the form of an XY plotter, and uses this for display.

The carriage head 3 is provided with a holder 5 which can be moved up and down by a solenoid 3a, which is an actuator (not shown), so that the holder 5 can be moved up and down. The holder 5 can rotate a mounting shaft 6 of a cutter 4 extending in the vertical direction. Thus, the cutter 4 is detachably attached to the housing 7, so that the cutter 4 is integrated with the holder 5 and the housing 7, and the rotation axis of the attachment shaft 6 is defined as one axis 8 along the axis 8. And is supported so as to be able to move up and down relatively with respect to the carriage head 3, and is also rotatable integrally with the mounting shaft 6 about the axis 8 relative to the holder 5 and the housing 7. The cutting edge 9 of the cutter 4 is deviated by an eccentric amount e with respect to the axis 8, that is, the rotation axis of the cutter 3. The cutter 4 is attached to the mounting shaft 6 by a chuck 10 so as to be replaceable.

In performing the cutting operation for cutting the sheet-like member 2, the cutter 4 is lowered integrally with the holder 5 and the housing 7 by the solenoid 3a with respect to the carriage head 3 in the direction shown by the arrow A in FIG. When the cutting inoperative position shown by the solid line in the figure is moved to the cutting operating position shown by the chain line, as the carriage head 3 moves,
The turning axis of the cutter 4 is set ahead of the cutting edge 9 and the direction of the cutting edge 9 of the cutter 4 is made to follow the moving direction of the carriage head 3 to perform the cutting process on the sheet-like member 2. In FIG. 1, the state where the cutter 4 is moved to the cutting position is shown by a chain line, but the holder 5 and the housing 7 that move integrally with the cutter 4 are shown by solid lines only when they are in the inactive position. Illustration of the operating position is omitted.

Reference numeral 11 is a disc fitted to the base end portion of the cutter 4, and is fixed so as to move up and down integrally with the cutter 4, and 12 is
It is a plate-shaped disc retainer fixed to the carriage head 2. At the tip of the disc retainer 12, as shown in FIG.
A substantially semicircular cutout 13 is formed, and the cutter 4 is formed there.
Is to be inserted.

That is, when the cutter 4 rises in the direction opposite to the arrow A shown in FIG. 1 and moves from the cutting operating position shown by the chain line in FIG. 1 to the cutting inactive position shown by the solid line, the disc 11 is moved accordingly. Ascends and presses against the disc holder 12
A frictional force is applied between the disc holder 12 and the disc retainer 12, so that the cutter 3 cannot freely rotate and its blind movement is restricted. On the other hand, as shown by the solid line in the figure, the cutter 4 descends due to the cutting operation of the cutter 4, and the disc 11 descends as the cutter 4 moves from the non-cutting position to the cutting operating position. The regulation is lifted away from 12.

Thus, the disc 11 and the disc retainer 12 constitute a friction applying means between the cutter 4 and the carriage head 3.

A rubber member 12a is bonded to the lower surface of the disc retainer 12 in order to increase the frictional force with the disc 11.

With the above structure, the disc 11 and the disc retainer 12 are formed, and friction is generated between the cutter 4 and the carriage head 3 as the cutter 4 moves from the cutting operation position to the cutting non-operation position along the axis 8. Friction is applied to exert a force to restrict the blind movement of the cutter 4 and to release the restriction as the cutter 4 moves from the non-cutting position to the cutting operating position along the axis 8 for the cutting operation of the cutter 4. When the cutting operation is performed by moving the cutter 4 from the cutting inoperative position to the cutting operating position, the cutter 4 exerts a force for directing the cutting edge 9 in a direction different from the moving direction of the carriage head 3. 4 on the other hand, move the cutter 4 from the cutting operation position to the cutting non-operation position and stop the cutting operation. In this case, the base plate 1 on which the sheet-shaped member 2 is placed is maintained without changing the direction of the cutting edge 9
Even when the cutting edge 9 is lifted from the sheet-like member 2 due to the unevenness of the cutting edge, the cutting processing can be smoothly continued without the cutting edge 9 pointing in a direction different from the moving direction of the carriage head 3. The cutting frequency of the cutter 4 along the axis 8 is higher than that of the carriage head 3. For example, a cutting process for forming stitches such as perforations formed by repeating short cutting lines is attempted. Even when the cutting edge is at the end point and the cutting edge at the start point of the next cutting line is the same direction, the cutting line is secured along the moving direction of the carriage head, and the cutting process is good. You can do it.

Here, at the end point of the cutting line and the starting point of the next cutting line,
Since the directions of the cutting edges 9 are not different and are the same, the rotational axis of the mounting shaft 6 of the cutter 4 or the position of the cutting edges 9 with respect to the axis 8 is the same, and therefore the starting point of the next cutting line is the same. Is also obtained accurately.

The present invention has been described above with reference to the embodiments, but the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the invention.

For example, in the above-described embodiment, the sheet-shaped member 2 is positioned horizontally, and the cutter 4 is moved up and down with the one axis 8 as the vertical direction to move from the cutting operation position to the cutting non-operation position. Although the cutting process is explained from, it is not limited to this.
The present invention is also applicable to a sheet-like member 2 which is vertically placed and is vertically positioned so that the uniaxial line 8 is lateral, and a sheet-like member 2 which is cut from below.

[Advantage of the Invention] As described above, according to the present invention, the frictional force is increased between the cutter and the carriage head as the cutter moves from the cutting operation position to the cutting non-operation position along the axis. A friction applying means for restricting the blind motion of the cutter and releasing the restriction as the cutter moves along the axis from the cutting inoperative position to the cutting operating position for the cutting operation of the cutter. As it is provided, when the cutter is moved from the cutting inoperative position to the cutting operating position to perform the cutting operation, the force for directing the blade edge in a direction different from the moving direction of the carriage head is not applied to the cutter,
On the other hand, when moving the cutter from the cutting operation position to the cutting non-operation position and stopping the cutting operation, hold the direction without changing the direction of the cutting edge, and it will affect the unevenness of the base plate on which the sheet-shaped member is placed. Even if the blade edge is lifted from the sheet-shaped member, the cutting process can be continued smoothly without the blade edge pointing in a direction different from the moving direction of the carriage head. The frequency of movement of the cutter along the axial direction is high, for example, when an attempt is made to perform a cutting process for forming stitches such as perforations formed by repeating short cutting lines, the cutting edge at the end of the cutting line The direction of the cutting edge is the same as the direction of the cutting edge at the start point of the next cutting line. Securing, etc. that can make cutting process well, it exhibits various effects.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of an essential part of an embodiment of a cutting device in a cutting plotter according to the present invention, FIG. 2 is a sectional view taken along line 2-2 of FIG. 1, and FIG. 3 is a perspective view showing a conventional one. Is. 2 ... Sheet-shaped member, 3 ... Carriage head 4 ... Cutter, 8 ... Uniaxial line 9 ... Blade edge, 11 ... Disk 12 ... Disk holder

Claims (1)

[Scope of utility model registration request] 1. A carriage head that moves along a sheet-shaped member to be cut is supported so as to be movable relative to the carriage head along one axis, and the carriage head has the axis. A cutter supported so as to be rotatable relative to the carriage head about the carriage head, when the cutter is moved along the axis from the inoperative position to the inoperative position to perform the cutting operation. In a cutting plotter in which the direction of the blade edge of the cutter is made to follow the movement direction of the carriage head as the carriage head moves, a cutting operation is performed along the axis between the cutter and the carriage head. From the position to the non-cutting position, a frictional force is applied to control the blind movement of the cutter. And a friction imparting means for releasing the regulation as the cutter moves from the inoperative position to the cutting operation position along the axis for the cutting operation of the cutter. Cutting device for plotter.