A reversing laser cutting device for embroidery machines

Abstract

This invention discloses a reversing laser cutting device for embroidery machines, aiming to provide a device that can cut fabric from two parts of the embroidery machine using a single laser, thereby saving on embroidery machine manufacturing costs. It also avoids the problem of using a moving laser to cut fabric from two parts of the embroidery machine, where the distance between the two cutting parts is large, affecting cutting efficiency. The device includes a frame, a laser reversing device, and a laser mounted on the frame. The laser reversing device includes: a movable mirror base with two mirrors at a predetermined angle to each other; and a mirror base moving mechanism for driving the movable mirror base to move so that the laser emitted by the laser is directed onto one of the mirrors or the other mirror.

Description

Technical Field

[0001] This invention relates to a laser cutting device, specifically a reversing laser cutting device for an embroidery machine. Background Technology

[0002] Laser cutting is used for fabric cutting. It avoids contact with the fabric, eliminates blade wear, and offers advantages such as burr-free edges, standardized dimensions, and minimal error, making it widely used in embroidery machines. Embroidery machines often encounter situations where two parts of the fabric need to be cut. Current embroidery machines typically employ the following methods for this: 1. Using two lasers to cut the two parts of the fabric separately. This method requires a large number of lasers, increasing the manufacturing cost of the embroidery machine. 2. Using a single, mobile laser that moves between the two cutting points to cut the fabric. This method has low laser movement efficiency, especially when the distance between the two cutting points is large, which further affects the cutting efficiency; it may also cause laser vibration, affecting the laser's lifespan. Summary of the Invention

[0003] The purpose of this invention is to provide a reversing laser cutting device for embroidery machines that can cut fabric in two parts of an embroidery machine using a single laser, thereby saving on the manufacturing cost of the embroidery machine and avoiding the problem of reduced cutting efficiency due to the large distance between the two cutting parts when using a moving laser to cut fabric in two parts of the embroidery machine.

[0004] The technical solution of this invention is:

[0005] A laser reversing cutting device for an embroidery machine includes a frame, a laser reversing device, and a laser mounted on the frame. The laser reversing device includes:

[0006] A movable lens mount, on which two lenses are arranged at a predetermined angle to each other;

[0007] The mirror mount moving mechanism is used to drive the moving mirror mount to move so that the laser emitted by the laser is directed onto one of the mirrors or the other mirror.

[0008] Because the two lenses are at a set angle to each other, the reflected light emitted by the laser and the reflected light emitted by the laser on one lens are in different directions. Therefore, when the laser cutting equipment is working, the moving lens can be driven by the lens base moving mechanism to move the laser emitted by the laser into one lens, producing reflected light to cut the fabric in one part of the embroidery machine. Then, the moving lens can be driven by the lens base moving mechanism to move the laser emitted by the laser into the other lens, producing reflected light to cut the fabric in another part of the embroidery machine. This allows the laser to cut the fabric in two parts of the embroidery machine with one laser, which helps to save on the manufacturing cost of the embroidery machine. More importantly, this solution uses a moving mirror base to cut the fabric in two parts of the embroidery machine. Since the moving mirror base needs to move a very short distance (not limited by the distance between the two cutting parts), it can quickly switch the cutting parts of the embroidery machine and efficiently cut the fabric in two parts of the embroidery machine. This avoids the problem of the cutting efficiency being affected by the large distance between the two cutting parts of the embroidery machine.

[0009] Preferably, the laser reversing device further includes two reversing components, each corresponding to a lens. Each reversing component includes a focusing lens and at least one reflecting mirror. The laser light emitted by the laser is reflected by one of the lenses and then reflected by the corresponding reversing component to the focusing lens for focusing. In this way, the orientation of the cutting area can be adjusted using the reflecting mirror to meet actual cutting needs.

[0010] Preferably, the commutation assembly also includes a protective tube. The laser light emitted by the laser enters the protective tube of the corresponding commutation assembly after being reflected by one of the lenses. The reflected light is then reflected by the mirror of the corresponding commutation assembly, and all the reflected light is transmitted within the protective tube of the same commutation assembly. This effectively prevents objects or personnel from coming into contact with the laser, thus protecting the objects and operators.

[0011] Preferably, the same commutation assembly has two reflectors and two protective tubes. One protective tube is located between the movable mirror mount and one reflector, and the other protective tube is located between the two reflectors. The laser emitted by the laser enters one of the reflectors, and the reflected light is reflected twice by the two reflectors of the corresponding commutation assembly before entering the focusing lens. This allows for adjustment of the orientation of the cutting part using the reflectors to meet actual cutting needs.

[0012] Preferably, the two reversing components are distributed on opposite sides of the movable mirror mount.

[0013] Preferably, the laser switching device further includes a slide rail mounted on the frame and a slider that slides along the slide rail, with the movable mirror mount fixed to the slider. This ensures that the movable mirror mount and the lens can move stably.

[0014] Preferably, the mirror mount moving mechanism includes a lead screw and nut mechanism and a drive motor. The lead screw of the lead screw and nut mechanism is rotatably mounted on the frame, and the drive motor is used to drive the lead screw to rotate. The nut of the lead screw and nut mechanism is connected to the slider or the movable mirror mount through a connector.

[0015] Preferably, the mirror base moving mechanism includes a toggle member, a shift fork, and a drive motor. The toggle member is disposed on the slider, and the shift fork is provided with a U-shaped opening or a strip hole that cooperates with the toggle member. The toggle member is inserted into the U-shaped opening or the strip hole. The drive motor is disposed on the frame to drive the toggle member to rotate, so that the slider moves along the slide rail.

[0016] Preferably, the mirror base moving mechanism includes a rocker arm, a connecting rod, and a drive motor. One end of the connecting rod is hinged to the slider, and the other end of the connecting rod is hinged to the rocker arm. The drive motor is mounted on the frame to drive the rocker arm to rotate, so that the slider moves along the slide rail.

[0017] Preferably, the angle between the two lenses is set to 30-150 degrees.

[0018] The beneficial effects of this invention are: it can cut the fabric in two parts of the embroidery machine with a single laser, which helps to save the manufacturing cost of the embroidery machine. At the same time, it avoids the problem of using a moving laser to cut the fabric in two parts of the embroidery machine, which has the problem of affecting the cutting efficiency due to the large distance between the two cutting parts of the embroidery machine. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of one embodiment of the reversing laser cutting device for embroidery machines according to the present invention.

[0020] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.

[0021] Figure 3 yes Figure 1 Axonometric drawing.

[0022] Figure 4 This is a schematic diagram of another embodiment of the reversing laser cutting device for the embroidery machine of the present invention.

[0023] Figure 5 yes Figure 4 A magnified view of a section at point B in the middle.

[0024] Figure 6This is a schematic diagram of a third embodiment of the reversing laser cutting device for the embroidery machine of the present invention.

[0025] Figure 7 yes Figure 6 A magnified view of a section at point C.

[0026] In the picture:

[0027] Laser 1;

[0028] Movable lens mount 2, lens 2.1;

[0029] Slide rail 3;

[0030] Slider 4;

[0031] Commutation assembly 5, reflector 5.1, focusing lens 5.2, protective tube 5.3;

[0032] The mirror base moving mechanism 6, the shift fork 6.1, the shifting component 6.2, the U-shaped opening 6.3, the drive motor 6.4, the lead screw and nut mechanism 6.5, the connecting rod 6.6, and the swing arm 6.7. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0034] Specific Implementation Example 1: As shown in the example Figure 1 , Figure 2 As shown, a laser reversing cutting device for an embroidery machine includes a frame, a laser reversing device, and a laser 1 mounted on the frame. The laser is fixed to the frame. The laser reversing device includes a movable mirror mount 2 and a mirror mount moving mechanism 6. The movable mirror mount has two mirrors 2.1 arranged at a predetermined angle to each other. The mirrors are reflectors. The laser emits laser light towards the mirrors on the movable mirror mount. The mirror mount moving mechanism drives the movable mirror mount to move so that the laser light emitted by the laser enters one of the mirrors or the other mirror. In this embodiment, the reflected light generated by the laser light emitted by the laser entering either of the mirrors does not pass through the other mirror.

[0035] Because the two lenses are at a set angle to each other, the reflected light emitted by the laser and the reflected light emitted by the laser on one lens are in different directions. Therefore, when the laser cutting equipment is working, the moving lens can be driven by the lens base moving mechanism to move the laser emitted by the laser into one lens, producing reflected light to cut the fabric in one part of the embroidery machine. Then, the moving lens can be driven by the lens base moving mechanism to move the laser emitted by the laser into the other lens, producing reflected light to cut the fabric in another part of the embroidery machine. This allows the laser to cut the fabric in two parts of the embroidery machine with one laser, which helps to save on the manufacturing cost of the embroidery machine. More importantly, this solution uses a moving mirror base to cut the fabric in two parts of the embroidery machine. Since the moving mirror base needs to move a very short distance (not limited by the distance between the two cutting parts), it can quickly switch the cutting parts of the embroidery machine and efficiently cut the fabric in two parts of the embroidery machine. This avoids the problem of the cutting efficiency being affected by the large distance between the two cutting parts of the embroidery machine.

[0036] Specifically, the set angle between the two lenses is 30-150 degrees (i.e., the included angle between the two lenses is 30-150 degrees). For example, the set angle between the two lenses can be 30, 60, 90, 120, or 150 degrees. Of course, the set angle between the two lenses can also be 0-30 degrees or 150-180 degrees. In this embodiment, the set angle between the two lenses is 90 degrees, and the angle between the laser emitted by the laser and either lens is 45 degrees. The reflected light emitted by the laser that enters one of the lenses is in the opposite direction to the reflected light emitted by the other lens.

[0037] like Figure 1 , Figure 2 As shown, the laser switching device also includes a slide rail 3 mounted on the frame and a slider 4 that slides along the slide rail. In this embodiment, the slide rail is horizontally distributed. The movable mirror mount is fixed to the slider. Specifically, the movable mirror mount is fixed to the slider by bolts or welding. Of course, the movable mirror mount can also be fixed to the slider by other means. In this way, the movable mirror mount and the lens can move stably.

[0038] like Figure 1 , Figure 2As shown, in one embodiment of this invention, the lens mount moving mechanism 6 includes a toggle member 6.2, a shift fork 6.1, and a drive motor. The toggle member is disposed on the slider. In this embodiment, the toggle member is cylindrical, and its axis is parallel to the output shaft of the drive motor. The shift fork 6.1 has a U-shaped opening 6.3 or a strip-shaped hole that mates with the toggle member. The toggle member is inserted into the U-shaped opening or the strip-shaped hole. The toggle member is fixedly connected to the output shaft of the drive motor. The drive motor is mounted on the frame and is used to drive the toggle member to rotate, so that the slider moves along the slide rail; specifically, the drive motor drives the toggle member to rotate clockwise or counterclockwise by a set angle, so as to prevent the slider, the lens mount, and the lens from moving along the slide rail.

[0039] like Figure 4 , Figure 5 As shown, in another embodiment of this invention, the lens mount moving mechanism 6 includes a lead screw and nut mechanism 6.5 and a drive motor 6.4. The lead screw of the lead screw and nut mechanism is rotatably mounted on the frame, and the lead screw is parallel to the slide rail. The drive motor is mounted on the frame and is used to drive the lead screw to rotate. The nut of the lead screw and nut mechanism is connected to the slider or the movable lens mount through a connecting member. The drive motor drives the lead screw to rotate clockwise or counterclockwise, so as to prevent the slider, the movable lens mount, and the lens from moving along the slide rail.

[0040] like Figure 6 , Figure 7 As shown, in the third embodiment of this invention, the lens mount moving mechanism 6 includes a swing arm 6.7, a connecting rod 6.6, and a drive motor. One end of the connecting rod is hinged to the slider. The other end of the connecting rod is hinged to the swing arm. The swing arm is fixedly connected to the output shaft of the drive motor. The drive motor is mounted on the frame to drive the swing arm to rotate, so that the slider moves along the slide rail; specifically, the drive motor drives the swing arm to rotate clockwise by a set angle or counterclockwise by a set angle, so that the slider, the moving lens mount, and the lens cannot move along the slide rail.

[0041] Of course, the mirror base moving mechanism can also use other driving mechanisms to drive the slider to move back and forth along the slide rail. For example, the mirror base moving mechanism is a cylinder or an electric push rod.

[0042] In this second specific embodiment, the remaining structure is the same as in the first specific embodiment, except that...

[0043] like Figure 1 , Figure 3 As shown, the laser commutation device also includes two commutation components 5. Each commutation component corresponds one-to-one with a lens. Each commutation component includes a focusing lens 5.2 and at least one reflecting mirror 5.1. The reflecting mirrors of the same commutation component can be configured according to actual needs; for example, the same commutation component may have one, two, three, or more reflecting mirrors. In this embodiment, the same commutation component has two reflecting mirrors.

[0044] The laser beam emitted by the laser enters one of the mirrors, and the reflected light is reflected twice by the two mirrors of the corresponding commutation assembly before entering the focusing lens for focusing. Similarly, the laser beam emitted by the laser enters another mirror, and the reflected light is reflected twice by the two mirrors of the corresponding commutation assembly before entering the focusing lens for focusing. In this way, the orientation of the cutting area can be adjusted using the mirrors to suit the actual cutting needs. Specifically, the laser beam emitted by the laser enters any one of the mirrors, and after being reflected twice by the two mirrors of the corresponding commutation assembly, it enters the focusing lens downwards for focusing, thus cutting the fabric.

[0045] Furthermore, such as Figure 1 , Figure 3 As shown, the commutation assembly also includes a protective tube 5.3. In this embodiment, there are two protective tubes for the same commutation assembly. One protective tube is located between the movable mirror mount and a reflector, and the other protective tube is located between the two reflectors. The reflected light from the laser emitted by the laser, when it enters any of the mirrors, will enter the protective tube of the corresponding commutation assembly, and then be reflected by the reflector of the corresponding commutation assembly. All the reflected light is transmitted within the protective tube of the same commutation assembly. This effectively prevents objects or personnel from coming into contact with the laser, thus protecting both the objects and the operators.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, alterations, and equivalent transformations made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A reversing laser cutting device for an embroidery machine, comprising a frame and a laser mounted on the frame, characterized in that, It also includes a laser commutation device, which comprises: A movable mirror mount, on which two lenses are positioned at a predetermined angle to each other; A mirror mount moving mechanism is used to drive the moving mirror mount to move so that the laser emitted by the laser is directed onto one of the mirrors or the other mirror; Two reversing components, each corresponding to a lens, include a focusing lens and at least one reflecting mirror. The laser emitted by the laser enters one of the lenses and the reflected light is reflected by the reflecting mirror of the corresponding reversing component to the focusing lens for focusing. A slide rail is mounted on the frame and a slider slides along the slide rail; the movable mirror mount is fixed on the slider. The mirror mount moving mechanism includes a toggle element, a shift fork, and a drive motor. The toggle element is mounted on the slider, and the shift fork has a U-shaped opening that mates with the toggle element. The toggle element is inserted into the U-shaped opening.

2. The reversing laser cutting device for an embroidery machine according to claim 1, characterized in that, The commutation assembly also includes a protective tube. The laser emitted by the laser is reflected by one of the lenses and enters the protective tube of the corresponding commutation assembly. Then, it is reflected by the mirror of the corresponding commutation assembly, and the light reflected by the mirror is transmitted within the protective tube of the same commutation assembly.

3. The reversing laser cutting device for an embroidery machine according to claim 2, characterized in that, There are two reflectors in the same commutator assembly.

4. The reversing laser cutting device for an embroidery machine according to claim 3, characterized in that, The same commutation component has two protective tubes. One protective tube is located between the movable mirror mount and a reflector, and the other protective tube is located between the two reflectors. The laser emitted by the laser enters the focusing lens after being reflected twice by the two reflectors of the corresponding commutation component.

5. A reversing laser cutting device for an embroidery machine according to claim 1, 2, 3, or 4, characterized in that, Two reversing components are located on opposite sides of the movable mirror mount.

6. A reversing laser cutting device for an embroidery machine according to claim 1, 2, 3, or 4, characterized in that, The drive motor is mounted on the frame to drive the actuating component to rotate, so that the slider moves along the slide rail.

7. A reversing laser cutting device for an embroidery machine according to claim 1, 2, 3, or 4, characterized in that, The slide rails are horizontally distributed.

8. A reversing laser cutting device for an embroidery machine according to claim 1, 2, 3, or 4, characterized in that, The movable mirror mount is fixed to the slider by bolts or welding.

9. A reversing laser cutting device for an embroidery machine according to claim 1, 2, or 3, characterized in that, The angle between the two lenses is set to 30-150 degrees.

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