Laser beam splitting and cutting equipment for embroidery machine

Abstract

The utility model discloses laser beam splitting and cutting equipment for an embroidery machine, and aims to provide the laser beam splitting and cutting equipment for the embroidery machine, which can simultaneously cut cloth on a plurality of stations on the embroidery machine by using a single laser under the condition that the power of the laser is not increased, so that the manufacturing cost is reduced. The device comprises a laser, a light splitting device and at least two focusing lenses, and the light splitting device comprises dimming units which are in one-to-one correspondence with the focusing lenses and comprise upper lenses; the upper lenses of the dimming units are located above the swing mirror, laser of the laser device is emitted to the swing mirror, the swing mirror swings in a reciprocating mode to sequentially reflect the laser to the upper lenses of the dimming units, and the laser is reflected to the corresponding focus lenses through the upper lenses; the driving mechanism is used for driving the swinging mirror to swing back and forth at a set frequency H, so that the focusing mirrors can cut the cloth on the embroidery machine at the same time when the laser works.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser cutting device technical field, concretely relates to a laser beam splitting cutting equipment for embroidery machine. BACKGROUND

[0002] Laser cutting is used for cloth cutting, does not have contact with cloth, does not exist blade wear problem, has no burr, size standard, error small etc. characteristics, and is widely used in embroidery machine. In embroidery machine, often need to cut the cloth of two or more stations, for this condition, the current embroidery machine generally adopts the following mode: adopt two or more lasers, each laser cuts the cloth of one station, this mode exists laser consumption, increases the manufacturing cost of embroidery machine.

[0003] In order to solve the above problem, at present some embroidery machines adopt a mobile laser, that is, one laser reciprocates in two or more stations to cut the cloth of two or more stations, this mode can effectively reduce the consumption of laser, thereby reducing the manufacturing cost of embroidery machine, but it has low laser moving efficiency, especially when the distance between two cutting stations is large, it will affect the cutting efficiency of the cloth of two stations, and the cloth cutting of each station can only be carried out in turn at different times, and the cloth of multiple stations cannot be cut at the same time.

[0004] Further, in order to solve the problem of mobile laser, some inventors have made improvements, for example, Chinese patent publication No. CN 111843242 A, the name of invention is double-head laser cutting machine, which comprises a laser, a beam splitter, a first cutting galvanometer and a second cutting galvanometer, the beam splitter divides a beam of laser emitted by the laser into two beams of laser transmitted to the first cutting galvanometer and the second cutting galvanometer, so that one beam of light emitted by the laser can be divided into two beams by the beam splitter for cutting. The application divides one beam of light into two beams for cutting by the beam splitter, so that one laser can cut multiple stations of cloth at the same time, but it needs to increase the power of the laser (to two times or more of the original), which also increases the manufacturing cost of the embroidery machine, specifically,

[0005] The current beam splitter is composed of incident and exit slits, mirrors and dispersion elements, which can divide one incident beam of light into two or more beams of light, but the sum of the power of each beam of light divided by the beam splitter is the same as the power of the incident light, for example, a 30W laser emits a 30W beam of light, which is divided into two beams by the beam splitter, each beam of light is 15W (the power of each beam of light divided by the beam splitter is reduced by half); if 30W of laser is needed for cloth cutting, then the power of the laser needs to be increased from 30W to 60W after the incident beam of light is divided into two beams by the beam splitter, which increases the manufacturing cost. Utility model content

[0006] The utility model discloses a kind of laser beam splitting cutting equipment for embroidery machine, which can cut the cloth on multiple workstations of embroidery machine simultaneously using a single laser without increasing the power of the laser, thereby reducing the production cost.

[0007] The technical scheme of the utility model is:

[0008] A kind of laser beam splitting cutting equipment for embroidery machine, comprising a laser and at least two focusing mirrors, further comprising a light splitting device, which comprises:

[0009] A light adjusting unit corresponding to each focusing mirror, comprising an upper lens;

[0010] A swing mirror, the upper lens of each light adjusting unit is located above the swing mirror, the laser of the laser is incident on the swing mirror, and the swing mirror reciprocally swings to reflect the laser to the upper lens of each light adjusting unit in turn, and to the corresponding focusing mirror through the upper lens;

[0011] A driving mechanism drives the swing mirror to reciprocally swing at a set frequency H, so that each focusing mirror can cut the cloth on the embroidery machine simultaneously when the laser works.

[0012] The laser beam splitting cutting equipment for embroidery machine of the present scheme reflects a beam of laser emitted by the laser to the upper lens of each light adjusting unit in turn through the reciprocating swing of the swing mirror, and reflects to the corresponding focusing mirror through the upper lens (the laser forms a laser spot on the cloth after being focused by the focusing mirror). Meanwhile, the swing mirror reciprocally swings at a high speed at a set frequency H, so that each focusing mirror generates intermittent laser spots with a set frequency of H, and the laser spots have a certain diameter (generally 0.1-0.5 mm). For example, each focusing mirror generates H laser spots per second. In this way, when cutting the cloth on the embroidery machine, the intermittent laser spots on the cloth irradiated by the focusing mirror can be made to bite each other by controlling the moving speed of the cloth, thereby realizing continuous cutting of the cloth. Each focusing mirror can cut the cloth on one workstation, and the laser of each focusing mirror can cut the cloth on the embroidery machine simultaneously.

[0013] Meanwhile, due to the arrangement of the light adjusting unit, the upper lenses of each light adjusting unit are arranged above the swing mirror, so that the laser emitted by the laser can be reflected to the upper lens of each light adjusting unit in turn through the reciprocating swing of the swing mirror with a small angle each time, and then reflected to the corresponding focusing mirror through the upper lens. Based on this, the present scheme can effectively reduce the angle of each swing of the swing mirror, thereby facilitating the increase of the swing frequency of the swing mirror and reducing the requirement for the performance of the driving mechanism, and further reducing the production difficulty and cost.

[0014] In another aspect, the laser beam splitting and cutting device for embroidery machine of the present application reflects the laser beam emitted by the laser through the swing mirror to each focusing mirror in turn, so that each focusing mirror generates intermittent laser spots with a set frequency of H. Therefore, the laser power entering each focusing mirror each time remains consistent with the laser power emitted by the laser, and the laser can cut the cloth at multiple stations on the embroidery machine simultaneously without increasing the power of the laser, thereby reducing the production cost.

[0015] As a preferred embodiment, the light guide unit corresponding to each light adjusting unit comprises at least one mirror, and the laser reflected by the swing mirror to the upper lens of each light adjusting unit is reflected to the corresponding focusing mirror through the mirror of the corresponding light guide unit. In this way, the path of the laser can be adjusted through the mirror of the light guide unit, and the position of the focusing mirror and the cutting position can be adjusted to meet the needs of different cutting.

[0016] As a preferred embodiment, the focusing mirror is two, the light guide unit is two, and the upper lens of each light adjusting unit is located between the two light guide units. The present application can cut the cloth at two stations on the embroidery machine. At the same time, the upper lens of the light adjusting unit can be arranged between the two light guide units to meet the needs of actual production arrangement.

[0017] As a preferred embodiment, the light guide unit further comprises a protective tube arranged along the laser path in the corresponding light guide unit. In this way, the laser entering the light guide unit will pass through the corresponding protective tube, thereby effectively avoiding the contact between the object or person and the laser to protect the object and the operator.

[0018] As a preferred embodiment, the upper lenses of each light adjusting unit are close to each other, and the angle of each swing of the swing mirror is C, and C is 2-40 degrees. Due to the arrangement of the light adjusting unit, the upper lenses of each light adjusting unit are arranged above the swing mirror, so that the swing mirror can reflect the laser emitted by the laser to the upper lenses of each light adjusting unit in turn by swinging a small angle C (set to an angle between 2-40 degrees according to needs), and then reflected to the corresponding focusing mirror through the upper lenses. Based on this, the present application can effectively reduce the angle of each swing of the swing mirror, thereby facilitating the increase of the swing frequency of the swing mirror and reducing the requirement for the performance of the driving mechanism, thereby further reducing the production difficulty and cost.

[0019] As a preferred embodiment, the light adjusting unit is located below the laser, and the laser emitted by the laser enters the swing mirror from top to bottom. In this way, the laser and the swing mirror can be arranged on the embroidery machine.

[0020] A laser beam splitting and cutting device for embroidery machine, comprising:

[0021] a laser;

[0022] At least two focusing mirrors;

[0023] The light splitting device comprises:

[0024] The light adjusting unit corresponding to the focusing mirror comprises an upper lens and a lower lens;

[0025] The swing mirror is above the upper lens of each light adjusting unit, and the laser emitted by the laser generator is reflected to each light adjusting unit in turn through the swing mirror, and then reflected to the corresponding focusing mirror through the corresponding upper lens and lower lens.

[0026] The driving mechanism drives the swing mirror to swing back and forth at a set frequency H, so that each focusing mirror can cut the cloth on the embroidery machine at the same time when the laser generator is working. The laser beam emitted by the laser generator is reflected to each light adjusting unit in turn through the swing mirror, and then reflected to the corresponding focusing mirror through the corresponding upper lens and lower lens. The laser beam is focused on the cloth through the focusing mirror to form a laser spot. At the same time, the swing mirror swings back and forth at a high speed at a set frequency H, so that each focusing mirror generates intermittent laser spots at a set frequency H, and the laser spots have a certain diameter (generally 0.1-0.5mm). For example, each focusing mirror generates H laser spots per second. In this way, when cutting the cloth on the embroidery machine, the intermittent laser spots on the cloth can be controlled by controlling the moving speed of the cloth, so as to realize continuous cutting of the cloth. Each focusing mirror can cut the cloth at one station, and the laser of each focusing mirror can cut the cloth on the embroidery machine at the same time.

[0027] At the same time, due to the arrangement of the light adjusting unit, the upper lenses of each light adjusting unit are arranged above the swing mirror, so that the laser emitted by the laser generator can be reflected to the upper lenses of each light adjusting unit in turn through the swing mirror, and then reflected to the corresponding focusing mirror through the corresponding upper lens and lower lens. Based on this, the angle of each swing of the swing mirror can be effectively reduced, which is conducive to improving the swing frequency of the swing mirror and reducing the performance requirements of the driving mechanism, thereby further reducing the manufacturing difficulty and cost.

[0028] On the other hand, the laser beam emitted by the laser generator is reflected to each focusing mirror in turn through the swing mirror, so that each focusing mirror generates intermittent laser spots at a set frequency H. Therefore, the laser power of each focusing mirror is consistent with the laser power of the laser generator, so that a single laser generator can be used to cut the cloth at multiple stations on the embroidery machine at the same time without increasing the power of the laser generator, thereby reducing the manufacturing cost.

[0029] As preferred, the light guide unit corresponding to each light adjusting unit comprises at least one mirror, the laser reflected by the swing mirror is sequentially reflected by the corresponding upper lens, lower lens and mirror to the corresponding focusing mirror. In this way, the path of the laser can be adjusted by the mirror of the light guide unit, and the position of the focusing mirror and the cutting position can be adjusted to meet the needs of different cutting.

[0030] As preferred, the focusing mirror is two, the light guide unit is two, and the lower lens of each light adjusting unit is located between the two light guide units. This scheme can cut the cloth on two workstations of the embroidery machine. At the same time, the lower lens of the light adjusting unit can be arranged between the two light guide units to meet the needs of actual production arrangement.

[0031] As preferred, the light guide unit further comprises a protective tube arranged along the laser path in the corresponding light guide unit. In this way, the laser entering the light guide unit will pass in the corresponding protective tube, thereby effectively avoiding the contact between the object or person and the laser to protect the object and the operator.

[0032] As preferred, the upper lenses of each light adjusting unit are close to each other, the lower lenses of each light adjusting unit are close to each other, and the angle of each swing of the swing mirror is C, C is 2-40 degrees. Due to the arrangement of the light adjusting unit, the upper lenses of each light adjusting unit are arranged above the swing mirror, so that the laser emitted by the laser can be reflected to the upper lenses of each light adjusting unit by the swing mirror swinging a small angle C (set to an angle between 2-40 degrees according to needs) each time, and then reflected to the corresponding focusing mirror through the upper lens. Based on this, the angle of each swing of the swing mirror can be effectively reduced, thereby facilitating the increase of the swing frequency of the swing mirror and reducing the requirement for the performance of the driving mechanism, thereby further reducing the manufacturing difficulty and cost.

[0033] As preferred, the lower lenses of each light adjusting unit are located below the swing mirror. In this way, the installation and arrangement of the lower lens can be facilitated, and the position of the lower lens can be adjusted according to actual needs to correspondingly adjust the position of the light guide unit.

[0034] As preferred, the light adjusting unit is located below the laser, and the laser of the laser is shot from top to bottom on the swing mirror. In this way, the laser and the swing mirror can be arranged on the embroidery machine.

[0035] The beneficial effects of the utility model are: without increasing the power of the laser, a single laser can be used to cut the cloth on multiple workstations of the embroidery machine, thereby reducing the manufacturing cost. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1It is a kind of main view of laser beam splitting cutting equipment for embroidery machine of the specific embodiment one of the utility model.

[0037] Figure 2 It is a kind of main view of laser beam splitting cutting equipment for embroidery machine of the specific embodiment three of the utility model.

[0038] Figure 3 It is a kind of three-dimensional structure schematic view of laser beam splitting cutting equipment for embroidery machine of the specific embodiment three of the utility model.

[0039] In the drawing,

[0040] Laser 1;

[0041] Focusing mirror 2;

[0042] Light adjusting unit 3, upper lens 3.1, lower lens 3.2;

[0043] Light splitting device 4, swing mirror 4.1, drive motor 4.2;

[0044] Light guide unit 5, reflecting mirror 5.1, protective tube 5.2. Specific embodiment

[0045] Specific embodiment one, as Figure 1 Shown, a kind of laser beam splitting cutting equipment for embroidery machine, including laser 1, light splitting device 4, at least two light adjusting units 3 and at least two focusing mirrors 2.In this embodiment, laser 1 is installed on the rack of embroidery machine by mounting bracket.

[0046] Light adjusting unit 3 and focusing mirror 2 correspond one by one.Light adjusting unit 3 includes upper lens 3.1.Upper lens 3.1 is directly or indirectly arranged on the rack of embroidery machine.

[0047] Light splitting device 4 is directly or indirectly arranged on the rack of embroidery machine.In this embodiment, light splitting device 4 is installed on the rack of embroidery machine by mounting bracket.Light splitting device 4 includes swing mirror 4.1 that can reciprocating swing and drive mechanism.The drive mechanism is used to drive swing mirror 4.1 reciprocating swing.The drive mechanism is drive motor 4.2.In this embodiment, drive motor 4.2 is galvanometer motor.Of course drive motor 4.2 can also be direct current motor or servo motor or other types of motor.

[0048] In an example, drive motor 4.2 is fixed on mounting bracket, swing mirror 4.1 is directly fixed on the output shaft of drive motor 4.2.

[0049] In another example, swing mirror 4.1 is arranged on mounting bracket by rotating shaft rotation, drive motor 4.2 is fixed on mounting bracket, the output shaft of drive motor 4.2 is connected with the rotating shaft of swing mirror 4.1.

[0050] The upper lens 3.1 of each light adjusting unit 3 is located above the swing mirror 4.1. The laser emitted by the laser 1 is incident on the swing mirror 4.1. The swing mirror 4.1 swings back and forth to reflect the laser to the upper lens 3.1 of each light adjusting unit 3 in turn, and then to the corresponding focusing mirror 2 through the upper lens 3.1.

[0051] The driving mechanism drives the swing mirror 4.1 to swing back and forth at a set frequency H, so that each focusing mirror 2 can cut the cloth on the embroidery machine at the same time when the laser 1 is working.

[0052] The laser beam emitted by the laser 1 is reflected to the upper lens 3.1 of each light adjusting unit 3 in turn through the swing mirror 4.1 swinging back and forth, and then to the corresponding focusing mirror 2 through the upper lens 3.1. At the same time, the swing mirror 4.1 swings back and forth at a high speed at a set frequency H, so that each focusing mirror 2 generates intermittent laser spots with a set frequency H, and the laser spots have a certain diameter (generally 0.1-0.5mm). For example, each focusing mirror 2 generates H laser spots per second. In this way, when cutting the cloth on the embroidery machine, the moving speed of the cloth can be controlled to make the intermittent laser spots emitted by the focusing mirror 2 on the cloth bite each other, thereby realizing continuous cutting of the cloth. Each focusing mirror 2 can cut the cloth at one station, and the lasers of each focusing mirror 2 can cut the cloth on the embroidery machine at the same time.

[0053] At the same time, due to the arrangement of the light adjusting unit 3, the upper lenses 3.1 of each light adjusting unit 3 are arranged above the swing mirror 4.1, so that the swing mirror 4.1 can reflect the laser emitted by the laser 1 to the upper lens 3.1 of each light adjusting unit 3 in turn through a small angle each time, and then to the corresponding focusing mirror 2 through the upper lens 3.1. Based on this, the embodiment can effectively reduce the angle of each swing of the swing mirror 4.1, thereby facilitating the increase of the swing frequency of the swing mirror 4.1 and the reduction of the performance requirement of the driving mechanism, thereby further reducing the manufacturing difficulty and cost.

[0054] On the other hand, since the laser beam emitted by the laser 1 is reflected to each focusing mirror 2 in turn through the swing mirror 4.1, each focusing mirror 2 generates intermittent laser spots with a set frequency H, so that the laser power incident on each focusing mirror 2 each time is consistent with the laser power emitted by the laser 1. Therefore, without increasing the power of the laser 1, the laser beam emitted by a single laser 1 can be used to cut the cloth at multiple stations on the embroidery machine at the same time, thereby reducing the manufacturing cost.

[0055] Specifically, as shown in FIG. 2, the laser beam emitted by the laser 1 is incident on the swing mirror 4.1, and then the swing mirror 4.1 swings back and forth to reflect the laser beam to the upper lens 3.1 of each light adjusting unit 3 in turn, and then to the corresponding focusing mirror 2 through the upper lens 3.1. At the same time, the swing mirror 4.1 swings back and forth at a high speed at a set frequency H, so that each focusing mirror 2 generates intermittent laser spots with a set frequency H, and the laser spots have a certain diameter (generally 0.1-0.5mm). For example, each focusing mirror 2 generates H laser spots per second. In this way, when cutting the cloth on the embroidery machine, the moving speed of the cloth can be controlled to make the intermittent laser spots emitted by the focusing mirror 2 on the cloth bite each other, thereby realizing continuous cutting of the cloth. Each focusing mirror 2 can cut the cloth at one station, and the lasers of each focusing mirror 2 can cut the cloth on the embroidery machine at the same time. Figure 1As shown, the light adjusting unit 3 is located below the laser 1. The laser emitted from the laser 1 is reflected on the swing mirror 4.1 from top to bottom. In this way, the laser 1 and the swing mirror 4.1 can be arranged on the embroidery machine.

[0056] In this embodiment, the frequency H is set as H times per second, and H is greater than or equal to 10. In this way, during the swing of the swing mirror 4.1 at the set frequency H, each focusing mirror 2 can generate at least 10 laser spots per second. When cutting the cloth on the embroidery machine, the moving speed of the cloth can be controlled so that the intermittent laser spots focused on the cloth by the focusing mirror 2 can bite each other, thereby realizing continuous cutting of the cloth.

[0057] Further, H is set as 80-400 times, for example, H is set as 100 or 150 or 200 or 250 or 300 times. In this way, during the swing of the swing mirror 4.1 at the set frequency H, each focusing mirror 2 can generate 80-400 laser spots per second. Although the higher the swing frequency of the swing mirror 4.1, the more laser spots each focusing mirror 2 can generate per second, which is more conducive to realizing continuous cutting of the cloth; but the higher the swing frequency of the swing mirror 4.1, the higher the performance requirement of the driving mechanism, which will increase the production cost. Therefore, in this embodiment, H is set as 80-400 times, so that it can well adapt to the cutting needs of various cloth materials of different materials, and the performance requirement of the driving mechanism is not too high, which is conducive to controlling the production cost.

[0058] In this embodiment, during the swing of the swing mirror 4.1 at the set frequency H by the driving mechanism, each time the swing mirror 4.1 reflects the laser emitted by the laser 1 to one of the focusing mirrors 2, the swing mirror 4.1 stops for a set time T (i.e. the driving mechanism stops for a set time T), and the set time T is 1-5 milliseconds, for example, the set time T is 1 millisecond or 1.5 milliseconds or 2 milliseconds. Then, the swing mirror 4.1 continues to swing.

[0059] Further, the diameter of the laser spot focused by the focusing mirror 2 is 0.1-0.5 millimeters. For example, the diameter of the laser spot focused by the focusing mirror 2 is 0.3 millimeters. The larger the diameter of the laser spot focused by the focusing mirror 2, the more conducive it is to make the intermittent laser spots focused on the cloth by the focusing mirror 2 bite each other; but the larger the diameter of the laser spot focused by the focusing mirror 2, the more dispersed the energy of the laser spot, which is not conducive to cutting the cloth; therefore, in this embodiment, the diameter of the laser spot focused by the focusing mirror 2 is set to 0.1-0.5 millimeters, so that the ability of the intermittent laser spots focused on the cloth by the focusing mirror 2 to bite each other and the ability of the focused laser spot to cut the cloth can be considered.

[0060] Further, as shown in FIG. 2, the swing mirror 4.1 is located below the focusing mirror 2. The laser emitted from the laser 1 is reflected on the focusing mirror 2 from top to bottom. In this way, the laser 1 and the focusing mirror 2 can be arranged on the embroidery machine. Figure 1As shown, the upper lenses 3.1 of each light adjusting unit 3 are close to each other. The angle of each swing of the swing mirror 4.1 is C, and C is 2-40 degrees, for example, the angle of each swing of the swing mirror 4.1 is 10 degrees or 16 degrees or 20 degrees or 30 degrees. Due to the arrangement of the light adjusting unit 3, the upper lenses 3.1 of each light adjusting unit 3 are arranged above the swing mirror 4.1, so that the swing mirror 4.1 can reflect the laser emitted by the laser 1 to the upper lenses 3.1 of each light adjusting unit 3 in turn by swinging a small angle C (set to an angle between 2-40 degrees as needed), and then reflected to the corresponding focusing lens 2 through the upper lens 3.1. Based on this, the embodiment can effectively reduce the angle of each swing of the swing mirror 4.1, thereby facilitating the increase of the swing frequency of the swing mirror 4.1, reducing the requirement for the performance of the driving mechanism, and further reducing the manufacturing difficulty and cost.

[0061] Further, as shown in Figure 1 A laser beam splitting and cutting device for an embroidery machine further includes a light guiding unit 5 corresponding to each light adjusting unit 3. The light guiding unit 5 includes at least one mirror 5.1. The laser reflected by the swing mirror 4.1 to the upper lens 3.1 of each light adjusting unit 3 is reflected by the mirror 5.1 of the corresponding light guiding unit 5 to the corresponding focusing lens 2 for focusing. Specifically, the driving mechanism drives the swing mirror 4.1 to swing back and forth, and the laser emitted by the laser 1 is reflected to the upper lens 3.1 of each light adjusting unit 3 in turn. The laser is then reflected to the mirror 5.1 of the corresponding light guiding unit 5 through the upper lens 3.1, and then reflected to the corresponding focusing lens 2 through the mirror 5.1 for focusing. In this way, the path of the laser can be adjusted through the mirror 5.1 of the light guiding unit 5, and the position of the focusing lens 2 and the cutting position can be adjusted to meet the needs of different cutting.

[0062] Further, as shown in Figure 1 The light guiding unit 5 further includes a protective tube 5.2 arranged along the laser path in the corresponding light guiding unit 5. In this way, the laser entering the light guiding unit 5 will pass through the corresponding protective tube 5.2, thereby effectively avoiding the contact between the object or person and the laser, and protecting the object and the operator.

[0063] The number of mirrors 5.1 of the light guiding unit 5 can be set according to actual needs, for example, the mirror 5.1 of the same light guiding unit 5 is one or two or three or more. In actual production, the path of the laser can be adjusted through the mirror 5.1 of the light guiding unit 5, and the position of the focusing lens 2 and the cutting position can be adjusted to meet the needs of different cutting.

[0064] In an embodiment, as shown in Figure 1As shown, the same light guide unit 5 includes two mirrors 5.1, one of which is located above the focusing mirror 2. The laser light reflected by the wobble mirror 4.1 to the upper lens 3.1 of each light adjusting unit 3 is reflected twice by the two mirrors 5.1 of the corresponding light guide unit 5, and then enters the focusing mirror 2 from top to bottom for focusing. In this embodiment, the protective tube 5.2 of the light guide unit 5 is two, one of which is located between the two mirrors 5.1, and the other is located between the wobble mirror 4.1 and the adjacent mirror 5.1.

[0065] In another embodiment, the same light guide unit 5 includes one mirror 5.1, which is located above the focusing mirror 2. The laser light reflected by the wobble mirror 4.1 to the upper lens 3.1 of each light adjusting unit 3 is reflected by the one mirror 5.1 of the corresponding light guide unit 5, and then enters the focusing mirror 2 from top to bottom for focusing. In this embodiment, the protective tube 5.2 of the light guide unit 5 is one, which is located between the wobble mirror 4.1 and the mirror 5.1.

[0066] In a third embodiment, the same light guide unit 5 includes three mirrors 5.1 (not shown in the figure), one of which is located above the focusing mirror 2. The laser light reflected by the wobble mirror 4.1 to the upper lens 3.1 of each light adjusting unit 3 is reflected three times by the three mirrors 5.1 of the corresponding light guide unit 5, and then enters the focusing mirror 2 from top to bottom for focusing. In this embodiment, the protective tube 5.2 of the light guide unit 5 is three.

[0067] In a second embodiment, the remaining structure of this embodiment is referred to the first embodiment, and the difference is that,

[0068] In this embodiment, as shown, Figure 1 the focusing mirror 2 is two, the light guide unit 5 is two, and the light adjusting unit 3 is two.

[0069] As shown, Figure 1 the upper lens 3.1 of each light adjusting unit 3 is located between the two light guide units 5. The laser light emitted by the laser 1 is vertically downwardly incident on the wobble mirror 4.1. In this embodiment, the upper lenses 3.1 of the two light adjusting units 3 are symmetrically distributed along the laser path between the laser 1 and the wobble mirror 4.1. Of course, it should be noted that the upper lenses 3.1 of the two light adjusting units 3 can also be asymmetrically distributed.

[0070] In this embodiment, the swinging mirror 4.1 swings by an angle of C degrees each time. Specifically, when the swinging mirror 4.1 swings clockwise from a horizontal state by C / 2 degrees (at this time, the swinging mirror 4.1 is at a positive C / 2 degree angle), the laser emitted by the laser 1 is reflected by the corresponding dimming unit 3 and the light guiding unit 5 to one of the focusing mirrors 2; when the swinging mirror 4.1 swings counterclockwise from a horizontal state by C / 2 degrees (at this time, the swinging mirror 4.1 is at a negative C / 2 degree angle), the laser emitted by the laser 1 is reflected by the corresponding dimming unit 3 and the light guiding unit 5 to the other focusing mirror 2.

[0071] In actual operation, the drive mechanism causes the swing mirror 4.1 to swing at a set frequency H. During this process, when the swing mirror 4.1 rotates to a positive C / 2 degree angle and reflects the laser emitted by the laser 1 to one of the focusing mirrors 2, the swing mirror 4.1 stops for a set time T. The set time T is 1-5 milliseconds, for example, the set time T is 1 millisecond, 1.5 milliseconds or 2 milliseconds.

[0072] When the oscillating mirror 4.1 rotates to a negative C / 2 degree angle, reflecting the laser emitted by the laser 1 to one of the focusing mirrors 2, the oscillating mirror 4.1 stops for a set time T, which is 1-5 milliseconds, for example, 1 millisecond, 1.5 milliseconds, or 2 milliseconds.

[0073] Specific embodiment three, such as Figure 2 , Figure 3 As shown, a laser beam splitting and cutting device for an embroidery machine includes a laser 1, a beam splitting device 4, at least two dimming units 3, and at least two focusing lenses 2. In this embodiment, the laser 1 is mounted on the frame of the embroidery machine via a mounting bracket.

[0074] The dimming unit 3 corresponds one-to-one with the focusing lens 2. The dimming unit 3 includes an upper lens 3.1 and a lower lens 3.2. The lower lens 3.2 is located below the upper lens 3.1. The upper lens 3.1 and the lower lens 3.2 are directly or indirectly mounted on the frame of the embroidery machine.

[0075] The beam splitter 4 is mounted directly or indirectly on the frame of the embroidery machine. In this embodiment, the beam splitter 4 is mounted on the frame of the embroidery machine via a mounting bracket. The beam splitter 4 includes a reciprocating oscillating mirror 4.1 and a drive mechanism. The drive mechanism drives the oscillating mirror 4.1 to reciprocate. The drive mechanism is a drive motor 4.2. In this embodiment, the drive motor 4.2 is a galvanometer motor. Of course, the drive motor 4.2 can also be a DC motor, a servo motor, or other types of motor.

[0076] In one example, the drive motor 4.2 is fixed to the mounting bracket, and the swing mirror 4.1 is directly fixed to the output shaft of the drive motor 4.2.

[0077] In another example, the swing mirror 4.1 is arranged on a mounting bracket through a rotating shaft, and the driving motor 4.2 is fixed on the mounting bracket, and the output shaft of the driving motor 4.2 is connected with the rotating shaft of the swing mirror 4.1.

[0078] The upper lens 3.1 of each light adjusting unit 3 is located above the swing mirror 4.1. The laser emitted by the laser 1 is incident on the swing mirror 4.1. The swing mirror 4.1 reciprocatingly swings to reflect the laser to each light adjusting unit 3 in turn, and the laser is reflected to the corresponding focusing mirror 2 through the upper lens 3.1 and the lower lens 3.2 of the corresponding light adjusting unit 3. Specifically, the laser reflected by the swing mirror 4.1 to each light adjusting unit 3 is reflected to the corresponding focusing mirror 2 through the corresponding upper lens 3.1 and lower lens 3.2 in turn for focusing.

[0079] The driving mechanism drives the swing mirror 4.1 to reciprocate at a set frequency H, so that each focusing mirror 2 can simultaneously cut the cloth on the embroidery machine when the laser 1 is working.

[0080] The laser beam splitting and cutting equipment for the embroidery machine in the embodiment reciprocatingly swings the swing mirror 4.1 to reflect a laser beam emitted by the laser 1 to each light adjusting unit 3 in turn, and the laser beam is reflected to the corresponding focusing mirror 2 through the corresponding upper lens 3.1 and lower lens 3.2 (the laser is focused by the focusing mirror 2 to form a laser spot on the cloth), and at the same time, the swing mirror 4.1 reciprocates at a high speed at a set frequency H, so that each focusing mirror 2 generates intermittent laser spots at a set frequency H, and the laser spots have a certain diameter (generally 0.1-0.5 mm), for example, each focusing mirror 2 generates H laser spots per second, so that when cutting the cloth on the embroidery machine, the moving speed of the cloth can be controlled to make the intermittent laser spots irradiated on the cloth by the focusing mirror 2 bite each other, thereby realizing continuous cutting of the cloth. Each focusing mirror 2 can cut the cloth at one station, and the lasers of each focusing mirror 2 can simultaneously cut the cloth on the embroidery machine.

[0081] At the same time, due to the arrangement of the light adjusting unit 3, the upper lenses 3.1 of each light adjusting unit 3 are arranged above the swing mirror 4.1, so that the swing mirror 4.1 can reflect the laser emitted by the laser 1 to the upper lenses 3.1 of each light adjusting unit 3 in turn through a small angle each time, and the laser is reflected to the corresponding focusing mirror 2 through the corresponding upper lens 3.1 and lower lens 3.2. Based on this, the embodiment can effectively reduce the angle of each swing of the swing mirror 4.1, thereby facilitating to improve the swing frequency of the swing mirror 4.1 and reducing the requirement for the performance of the driving mechanism, thereby further reducing the manufacturing difficulty and cost.

[0082] On the other hand, since the laser beam splitting and cutting device for embroidery machine of the embodiment reflects the laser beam emitted by the laser 1 to each focusing mirror 2 in turn through the swing mirror 4.1 to make each focusing mirror 2 generate intermittent laser spots with a set frequency H, the laser power of each focusing mirror 2 is consistent with the laser power emitted by the laser 1, so that the power of the laser 1 can be used to cut the cloth on multiple workstations of the embroidery machine at the same time, thereby reducing the production cost.

[0083] Specifically, as shown in Figure 2 、 Figure 3 , the light adjusting unit 3 is located below the laser 1. The laser emitted by the laser 1 is downwardly incident on the swing mirror 4.1. In this way, the laser 1 and the swing mirror 4.1 are conveniently arranged on the embroidery machine.

[0084] In the embodiment, the set frequency H is set to swing H times per second, and H is greater than or equal to 10. In this way, during the swinging of the swing mirror 4.1 at the set frequency H, each focusing mirror 2 can generate at least 10 laser spots per second, and when cutting the cloth on the embroidery machine, the moving speed of the cloth can be controlled to make the intermittent laser spots focused by the focusing mirror 2 on the cloth bite each other, thereby realizing continuous cutting of the cloth.

[0085] Further, H is 80-400 times, for example, H is 100 or 150 or 200 or 250 or 300 times. In this way, during the swinging of the swing mirror 4.1 at the set frequency H, each focusing mirror 2 can generate 80-400 laser spots per second; although the higher the swinging frequency of the swing mirror 4.1, the more laser spots each focusing mirror 2 generates per second, which is more conducive to realizing continuous cutting of the cloth; but the higher the swinging frequency of the swing mirror 4.1, the higher the performance requirement of the driving mechanism, which will increase the production cost, so the embodiment sets H to be 80-400 times, which can well adapt to the cutting needs of various different materials of cloth, and will not have too high performance requirements on the driving mechanism, which is conducive to controlling the production cost.

[0086] In the embodiment, during the swinging of the swing mirror 4.1 at the set frequency H, each time the swing mirror 4.1 reflects the laser emitted by the laser 1 to one of the focusing mirrors 2, the swing mirror 4.1 stops for a set time T (i.e. the driving mechanism stops for a set time T), and the set time T is 1-5 milliseconds, for example, the set time T is 1 millisecond or 1.5 milliseconds or 2 milliseconds; then the swing mirror 4.1 continues to swing.

[0087] In the embodiment, the lower lens 3.2 of each light adjusting unit 3 is located below the swing mirror 4.1. In this way, not only the installation and arrangement of the lower lens 3.2 can be facilitated, but also the position of the lower lens 3.2 can be adjusted according to actual needs, so as to correspondingly adjust the position of the light guide unit 5.

[0088] Of course, it should be noted that the position of the lower lens 3.2 of the light adjusting unit 3 can also be higher than the swing mirror 4.1.

[0089] Further, the diameter of the laser spot focused by the focusing mirror 2 is 0.1-0.5 mm. For example, the diameter of the laser spot focused by the focusing mirror 2 is 0.3 mm. The larger the diameter of the laser spot focused by the focusing mirror 2, the more conducive it is to make the intermittent laser spots focused by the focusing mirror 2 on the cloth to bite each other; but the larger the diameter of the laser spot focused by the focusing mirror 2, the more dispersed the energy of the laser spot, which is not conducive to cutting the cloth; therefore, in the embodiment, the diameter of the laser spot focused by the focusing mirror 2 is set to 0.1-0.5 mm, so that the ability of the intermittent laser spots focused by the focusing mirror 2 on the cloth to bite each other and the ability of the focused laser spot to cut the cloth can be taken into account.

[0090] Further, as shown in Figure 2 、 Figure 3 , the upper lenses 3.1 of each light adjusting unit 3 are close to each other. The angle of each swing of the swing mirror 4.1 is C, and C is 2-40 degrees, for example, the angle of each swing of the swing mirror 4.1 is 10 degrees or 16 degrees or 20 degrees or 30 degrees. Due to the arrangement of the light adjusting unit 3, the upper lenses 3.1 of each light adjusting unit 3 are arranged above the swing mirror 4.1, so that the swing mirror 4.1 can reflect the laser emitted by the laser 1 to the upper lenses 3.1 of each light adjusting unit 3 in turn by swinging a small angle C (which is set to a certain angle between 2-40 degrees according to needs), and then to the corresponding focusing mirror 2 through the upper lens 3.1. Based on this, the embodiment can effectively reduce the angle of each swing of the swing mirror 4.1, thereby facilitating the increase of the swing frequency of the swing mirror 4.1, reducing the requirement for the performance of the driving mechanism, and further reducing the manufacturing difficulty and cost.

[0091] Further, as shown in Figure 2 、 Figure 3As shown in FIG. 1, the laser beam splitting and cutting device for embroidery machine further comprises a light guide unit 5 corresponding to each light adjusting unit 3. The light guide unit 5 comprises at least one mirror 5.1. The laser beam reflected by the swing mirror 4.1 is reflected to the corresponding focusing mirror 2 through the corresponding upper mirror 3.1, lower mirror 3.2 and mirror 5.1 in sequence. Specifically, the driving mechanism drives the swing mirror 4.1 to reciprocate, and the laser beam emitted by the laser 1 is reflected to the upper mirror 3.1 of each light adjusting unit 3 in sequence, and then reflected to the lower mirror 3.2, and then reflected to the mirror 5.1 of the corresponding light guide unit 5, and then reflected to the corresponding focusing mirror 2 through the mirror 5.1 for focusing. In this way, the path of the laser beam can be adjusted through the mirror 5.1 of the light guide unit 5, and then the position of the focusing mirror 2 and the cutting position can be adjusted to adapt to different cutting needs.

[0092] Further, as shown in FIG. 1, Figure 2 、 Figure 3 the light guide unit 5 further comprises a protective tube 5.2 arranged along the laser beam path in the corresponding light guide unit 5. In this way, the laser beam entering the light guide unit 5 will pass in the corresponding protective tube 5.2, thereby effectively avoiding the contact between the object or person and the laser beam to protect the object and the operator.

[0093] The number of mirrors 5.1 of the light guide unit 5 can be set according to actual needs, for example, one or two or three or more mirrors 5.1 in the same light guide unit 5. In actual production, the path of the laser beam can be adjusted through the mirror 5.1 of the light guide unit 5, and then the position of the focusing mirror 2 and the cutting position can be adjusted to adapt to different cutting needs.

[0094] In an embodiment, as shown in FIG. 1, Figure 2 、 Figure 3 the same light guide unit 5 comprises two mirrors 5.1, one of which is located above the focusing mirror 2. The laser beam reflected by the swing mirror 4.1 is reflected to the corresponding focusing mirror 2 through two reflections of the two mirrors 5.1 of the corresponding light guide unit 5 after passing through the corresponding upper mirror 3.1 and lower mirror 3.2, and then enters the focusing mirror 2 from top to bottom for focusing. The protective tube 5.2 of the light guide unit 5 in this embodiment is two, one of which is located between the two mirrors 5.1, and the other is located between the swing mirror 4.1 and the adjacent mirror 5.1.

[0095] In another embodiment, the same light guide unit 5 includes a reflector 5.1, which is located above the focusing lens 2. The laser light reflected by the oscillating mirror 4.1 to each dimming unit 3, after passing through the corresponding upper lens 3.1 and lower lens 3.2, is reflected again by the reflector 5.1 of the corresponding light guide unit 5, and then enters the focusing lens 2 from top to bottom for focusing. In this embodiment, the protective tube 5.2 of the light guide unit 5 is a single tube, which is located between the oscillating mirror 4.1 and the reflector 5.1.

[0096] In the third embodiment, the same light guide unit 5 includes three reflectors 5.1 (not shown in the figure), one of which is located above the focusing lens 2. The laser light reflected by the oscillating mirror 4.1 to each dimming unit 3, after passing through the corresponding upper lens 3.1 and lower lens 3.2, is reflected three times by the three reflectors 5.1 of the corresponding light guide unit 5, and then enters the focusing lens 2 from top to bottom for focusing. In this embodiment, the light guide unit 5 has three protective tubes 5.2.

[0097] In this specific embodiment four, the remaining structure is the same as in specific embodiment three, except that...

[0098] In this embodiment, as Figure 2 , Figure 3 As shown, there are two focusing lenses 2, two light guide units 5, and two dimming units 3.

[0099] like Figure 2 , Figure 3 As shown, the lower lens 3.2 of each dimming unit 3 is located between two light guide units 5. The laser emitted by the laser 1 is directed vertically downwards into the oscillating mirror 4.1. In this embodiment, the upper lenses 3.1 of the two dimming units 3 are symmetrically distributed along the laser path between the laser 1 and the oscillating mirror 4.1, and the angle between the upper lens 3.1 and the horizontal plane is C / 2 degrees. It should be noted that the upper lenses 3.1 of the two dimming units 3 can also be asymmetrically distributed.

[0100] In this embodiment, the swinging mirror 4.1 swings by an angle of C degrees each time. Specifically, when the swinging mirror 4.1 swings clockwise from a horizontal state by C / 2 degrees (at this time, the swinging mirror 4.1 is at a positive C / 2 degree angle), the laser emitted by the laser 1 is reflected by the corresponding dimming unit 3 and the light guiding unit 5 to one of the focusing mirrors 2; when the swinging mirror 4.1 swings counterclockwise from a horizontal state by C / 2 degrees (at this time, the swinging mirror 4.1 is at a negative C / 2 degree angle), the laser emitted by the laser 1 is reflected by the corresponding dimming unit 3 and the light guiding unit 5 to the other focusing mirror 2.

[0101] In the specific work, the driving mechanism obtains the swing mirror 4.1 to set the frequency H swing, in the process, when the swing mirror 4.1 rotates to present positive C / 2 degree angle, the laser emitted by the laser 1 is reflected to one of the focusing mirrors 2, the swing mirror 4.1 stops setting time T, the setting time T is 1-5 milliseconds, for example, the setting time T is 1 millisecond or 1.5 milliseconds or 2 milliseconds;

[0102] When the swing mirror 4.1 rotates to present negative C / 2 degree angle, the laser emitted by the laser 1 is reflected to one of the focusing mirrors 2, the swing mirror 4.1 stops setting time T, the setting time T is 1-5 milliseconds, for example, the setting time T is 1 millisecond or 1.5 milliseconds or 2 milliseconds.

[0103] In the fifth embodiment, the rest of the structure of the embodiment refers to the first embodiment or the third embodiment, the difference is that,

[0104] In the embodiment, the focusing mirror 2 is three or four (not shown in the figure). The light guide unit 5 corresponds to three or four, and the light adjusting unit 3 corresponds to three or four. In the working process of the light splitting type laser cutting device for the embroidery machine, each focusing mirror 2 can cut the cloth of one work position, and the laser of each focusing mirror 2 can simultaneously cut the cloth on the embroidery machine, so as to realize cutting the cloth of three or four work positions on the embroidery machine by using a single laser 1.

[0105] The above is only the preferred embodiment of the utility model, not any limitation on the utility model, any simple modification, change and equivalent transformation according to the technical essence of the utility model to the above embodiment still belongs to the protection scope of the technical scheme of the utility model.

Claims

1. A laser beam splitting and cutting device for embroidery machines, comprising a laser and at least two focusing lenses, characterized in that, It also includes a beam splitter, which comprises: A dimming unit corresponding to each focusing lens, including the upper lens; The upper mirror of each dimming unit is located above the oscillating mirror. The laser beam from the laser is shone into the oscillating mirror. The oscillating mirror oscillates back and forth, reflecting the laser beam sequentially to the upper mirror of each dimming unit, and then reflecting it through the upper mirror to the corresponding focusing lens. The drive mechanism drives the swing mirror to swing back and forth at a set frequency H, so that each focusing lens can simultaneously cut the fabric on the embroidery machine when the laser is working.

2. The laser beam splitting and cutting device for an embroidery machine according to claim 1, characterized in that, It also includes a light guide unit that corresponds to each dimming unit. The light guide unit includes at least one reflector. The laser light reflected by the oscillating mirror to the upper lens of each dimming unit is then reflected by the reflector of the corresponding light guide unit to the corresponding focusing lens for focusing.

3. The laser beam splitting and cutting device for an embroidery machine according to claim 2, characterized in that, There are two focusing lenses and two light guide units, with the upper lens of each dimming unit located between the two light guide units.

4. A laser beam splitting and cutting device for an embroidery machine according to claim 2 or 3, characterized in that, The light guide unit also includes a protective tube, which is arranged along the laser path within the corresponding light guide unit.

5. A laser beam splitting and cutting device for an embroidery machine according to claim 1, 2, or 3, characterized in that, The upper lenses of each dimming unit are close to each other, and the angle of each swing of the oscillating mirror is C, with C ranging from 2 to 60 degrees.

6. A laser beam splitting and cutting device for an embroidery machine according to claim 1, 2, or 3, characterized in that, The dimming unit is located below the laser, and the laser beam from the laser is directed from top to bottom onto the oscillating mirror.

7. A laser beam splitting and cutting device for an embroidery machine, characterized in that, include: Laser; At least two focusing lenses; The beam splitter includes: A dimming unit corresponding to a focusing lens, including an upper lens and a lower lens; The upper mirror of each dimming unit is located above the oscillating mirror. The laser beam from the laser is shone into the oscillating mirror. The oscillating mirror oscillates back and forth, reflecting the laser beam to each dimming unit in sequence. The laser beam is then reflected to the corresponding focusing lens through the corresponding upper and lower mirrors. The drive mechanism drives the swing mirror to swing back and forth at a set frequency H, so that each focusing lens can cut the fabric on the embroidery machine simultaneously when the laser is working.

8. The laser beam splitting and cutting device for an embroidery machine according to claim 7, characterized in that, It also includes a light guide unit corresponding to each dimming unit. The light guide unit includes at least one reflector. The laser light reflected by the oscillating mirror to each dimming unit is then reflected by the corresponding upper lens, lower lens and reflector to the corresponding focusing lens for focusing.

9. The laser beam splitting and cutting device for an embroidery machine according to claim 7, characterized in that, There are two focusing lenses and two light guide units, with the lower lens of each dimming unit located between the two light guide units.

10. A laser beam splitting and cutting device for an embroidery machine according to claim 8 or 9, characterized in that, The light guide unit also includes a protective tube, which is arranged along the laser path within the corresponding light guide unit.

11. A laser beam splitting and cutting device for an embroidery machine according to claim 7, 8, or 9, characterized in that, The upper lenses of each dimming unit are close to each other, and the lower lenses of each dimming unit are close to each other. The angle of each swing of the oscillating mirror is C, and the value of C is 2-40 degrees.

12. A laser beam splitting and cutting device for an embroidery machine according to claim 7, 8, or 9, characterized in that, The lower lens of each dimming unit is located below the swing mirror.

13. A laser beam splitting and cutting device for an embroidery machine according to claim 7, 8, or 9, characterized in that, The dimming unit is located below the laser, and the laser beam from the laser is directed from top to bottom onto the oscillating mirror.

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