A sub-rotary cutter device for a plotter

Abstract

The application provides a sub-rotary cutter device for a plotter, which comprises a base arranged on a plotter shell, a motor is arranged on the base, a transmission belt is arranged on a rotating shaft of the motor, a circular blade is arranged beside the motor, a rotating shaft is arranged on a side of the circular blade, one end of the transmission belt is connected with the rotating shaft of the motor, and the other end of the transmission belt is connected with the rotating shaft, the motor provides rotating power for the circular blade, and the circular blade is arranged on the base through a rocker arm. The cutter device driven by the motor to rotate at high speed is designed, the problem that the cutting edge is easy to be blunt after long-time use at the same position and the cutting edge cannot cut the printing medium after being blunt is solved. After the power device is connected, even if the cutting edge is slightly worn, the ordinary printing medium can still be easily cut, and the service life of the cutter is greatly prolonged. In addition, the electric cutter can quickly cut the high-toughness material which is difficult to cut in the traditional sense.

Description

Technical Field

[0001] This invention relates to the field of plotting equipment technology, and more particularly to a rotary cutting device for a plotter. Background Technology

[0002] When using large-format inkjet plotters to print on continuous roll paper, users may not necessarily require roll paper as the output medium. They may want to cut the printed media sheet by sheet. Currently available plotters either lack a cutting blade, requiring a separate cutting device, or use telescopic blades. These blades rely on a purely moving cutting mechanism, leading to significant wear on the cutting edge, a short lifespan, and a tendency for the blade to dull and fail to cut, causing the equipment to jam. For example, published patent 2025208489081 discloses a plotter paper-cutting device that uses a ten-sided circular blade to cut the printed product, replacing manual cutting, improving cutting accuracy, and reducing labor costs. However, this structure only uses a circular blade for cutting and still cannot quickly solve the problem of cutting failure due to blade dulling. Therefore, solving the problem of poor cutting performance caused by blade wear after a period of use with ordinary cutting blades is particularly important. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the present invention aims to provide a rotary cutting device for plotters. This device, which uses a motor to drive a circular blade to rotate at high speed, solves the problem of blades becoming dull from prolonged use in the same position, leading to an inability to cut printing media. With the addition of a power unit, even with slight blade wear, it can still easily cut ordinary printing media, significantly extending the cutting device's lifespan.

[0004] The present invention provides a rotary cutting device for a plotter, comprising a base mounted on the plotter housing, a motor mounted on the base, a transmission belt mounted on the motor shaft, a circular blade mounted next to the motor, a rotating shaft mounted on the side of the circular blade, one end of the transmission belt being connected to the motor shaft and the other end being connected to the rotating shaft, the motor providing rotational power to the circular blade, and the circular blade being mounted on the base via a rocker arm.

[0005] A further improvement is that: a mounting shaft is provided on the rocker arm, a circular blade is mounted on the mounting shaft, and the circular blade rotates about the mounting shaft as its axis; a mounting support is provided between the rocker arm and the base, and the rocker arm rotates along the mounting support.

[0006] A further improvement is that an electromagnet is installed above the rocker arm, and the rocker arm moves downward by energizing the electromagnet.

[0007] A further improvement is that a return spring is provided between the rocker arm and the electromagnet, which provides power for the rocker arm to return to its original position.

[0008] A further improvement is that a position sensor is installed next to the motor to detect the position of the circular blade and determine whether it is in the cutting position.

[0009] A further improvement is that the rotating shaft of the rocker arm on the circular blade and the rotating shaft of the motor are concentric, and the length of the transmission belt remains completely unchanged during the rotation of the rocker arm.

[0010] A further improvement is that a movable column is provided on the electromagnet. When the electromagnet is energized, the movable column moves downward under the control of magnetic force, pushing the rocker arm downward and placing the circular blade in the cutting position.

[0011] The beneficial effects of this invention are as follows: By designing a cutting device that drives a circular blade to rotate at high speed via a motor, the problem of blades becoming dull after prolonged use in the same position, and the inability to cut printing media after the blade has become dull, is solved. After connecting the power unit, even with slight wear on the blade, it can still easily cut ordinary printing media, greatly extending the lifespan of the cutting device. Furthermore, for traditionally difficult-to-cut, high-toughness materials (such as fabrics with textile fibers), the electric cutting device can quickly cut these materials. Simultaneously, the cutting position of the circular blade is controlled by an electromagnet, resulting in a rapid response and eliminating waiting time, thus improving processing efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention.

[0013] Figure 2 This is the main structural view of the present invention.

[0014] Figure 3 This is a side view of the structure of the present invention.

[0015] The components are: 1-Plotter printing carriage shell, 2-Base, 3-Motor, 4-Transmission belt, 5-Circular blade, 6-Rotating shaft, 7-Rocker arm, 8-Mounting shaft, 9-Mounting support, 10-Electromagnet, 11-Reset spring, 12-Position sensor, 13-Moving column. Detailed Implementation

[0016] To enhance understanding of the present invention, the present invention will be further described in detail below with reference to embodiments. These embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0017] like Figure 1-3As shown, this embodiment provides a rotary cutting device for a plotter, including a base 2 mounted on a plotter housing 1. A motor 3 is mounted on the base 2, and a transmission belt 4 is mounted on the shaft of the motor 3. A circular blade 5 is mounted next to the motor 3, and a rotating shaft 6 is mounted on the side of the circular blade 5. One end of the transmission belt 4 is connected to the shaft of the motor 3, and the other end is connected to the rotating shaft 6. The motor 3 provides rotational power to the circular blade 5. The circular blade 5 is mounted on the base 2 via a rocker arm 7. A mounting shaft 8 is mounted on the rocker arm 7, and the circular blade 5 is mounted on the mounting shaft 8 and rotates around the mounting shaft 8. A mounting support 9 is provided between the rocker arm 7 and the base 2, and the rocker arm 7 rotates along the mounting support 9. An electromagnet 10 is provided above the rocker arm 7, and energizing the electromagnet 10 moves the rocker arm 7 downward. A return spring 11 is provided between the rocker arm 7 and the electromagnet 10, and the return spring 11 provides power to return the rocker arm 7 to its original position. The transmission belt 4 is made of an elastic material and changes length with the circular blade 5 as the rocker arm 7 moves up and down. A position sensor 12 is installed next to the motor 3 to detect the position of the circular blade 5 and determine whether it is in the cutting position. The rotating shaft 6 of the circular blade 5 and the rotating shaft of the motor 3 are concentric, and the length of the transmission belt 4 remains unchanged during the rotation of the rocker arm 7. A moving column 13 is installed on the electromagnet 10. After the electromagnet 10 is energized, the moving column 13 moves downward under the control of magnetic force, pushing the rocker arm 7 downward, so that the circular blade 5 is in the cutting position.

[0018] The cutter is mounted on the side of the plotter's printing carriage and moves with it. During normal printing, the cutter retracts to its highest position without affecting the printing operation. When a cutting command is sent, an electromagnet drives the cutter arm to fall, and simultaneously, the motor operates, using a belt to rotate the blade. The entire cutter assembly moves with the printing carriage to cut the printing media. After cutting is complete, power is cut off, the motor stops rotating, and the arm returns to its original position under spring pressure.

[0019] By designing a cutting device that uses a motor to drive a circular blade to rotate at high speed, the problem of blades becoming dull from prolonged use in the same position, and then failing to cut the printing media, is solved. With the power unit connected, even with slight blade wear, it can still easily cut ordinary printing media, greatly extending the cutting device's lifespan. Furthermore, for traditionally difficult-to-cut, high-toughness materials (such as fabrics with textile fibers), the electric cutting device can quickly cut these materials. Simultaneously, the cutting position of the circular blade is controlled by an electromagnet 10, resulting in rapid response and no waiting time, thus improving processing efficiency.

Claims

1. A sub-rotary cutting device for a plotter, comprising a base (2) disposed on the outer shell (1) of a plotter printing carriage, characterized in that: A motor (3) is installed on the base (2). A transmission belt (4) is provided on the shaft of the motor (3). A circular blade (5) is provided next to the motor (3). A rotating shaft (6) is provided on the side of the circular blade (5). One end of the transmission belt (4) is connected to the shaft of the motor (3), and the other end is connected to the rotating shaft (6). The motor (3) provides rotational power to the circular blade (5). The circular blade (5) is mounted on the base (2) by a rocker arm (7).

2. The plotter rotary cutter device as described in claim 1, characterized in that: The rocker arm (7) is provided with an installation shaft (8), and a circular blade (5) is provided on the installation shaft (8). The circular blade (5) rotates around the installation shaft (8). An installation support (9) is provided between the rocker arm (7) and the base (2). The rocker arm (7) rotates along the installation support (9).

3. The plotter rotary cutter device as described in claim 2, characterized in that: An electromagnet (10) is provided above the rocker arm (7), and the rocker arm (7) is moved downward by energizing the electromagnet (10).

4. The plotter rotary cutter device as described in claim 4, characterized in that: A reset spring (11) is provided between the rocker arm (7) and the electromagnet (10), and the reset spring (11) provides power for the rocker arm (7) to reset.

5. The plotter rotary cutter device as described in claim 1, characterized in that: A position sensor (12) is provided next to the motor (3). The position of the circular blade (5) is detected by the position sensor (12) to determine whether it is in the cutting position.

6. The plotter rotary cutter device as described in claim 1, characterized in that: The rotating shaft (6) on the circular blade (5) and the rotating shaft of the swing arm are concentric with the rotating shaft of the motor (3), and the length of the transmission belt (4) remains completely unchanged during the rotation of the rocker arm (7).

7. The plotter rotary cutter device as described in claim 3, characterized in that: The electromagnet (10) is provided with a movable column (13). After the electromagnet (10) is energized, the movable column (13) moves downward under the control of the magnetic force, pushing the rocker arm (7) downward, so that the circular blade (5) is in the cutting position.

Images