A leather laser marking machine

Abstract

The present invention discloses a leather laser marking machine, comprising: a marking machine body, provided with a working space; a laser head assembly, used for marking the leather in the working space; a feeding structure, used for placing a feeding roll; a first roller structure, used for conveying the leather of the feeding structure into the working space; a wetting and cleaning structure, used for wetting the leather in the first roller structure; a receiving structure, used for receiving the marked leather; a second roller structure, used for conveying the marked leather to the receiving structure, provided with a working area; wherein a driving mechanism is provided in the feeding structure. In the above manner, the leather laser marking machine disclosed in the present invention is provided with a wetting and cleaning structure, which can wet and clean the leather, and improve the leather marking effect; the feeding roll of the feeding structure can be slidably arranged, and the position of the feeding roll can be adjusted to realize the deviation correction of the leather; a working area is also provided, and maintenance can be carried out without stopping the machine, and work efficiency is effectively guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of laser marking, in particular to a leather laser marking machine. Background Art

[0002] The leather laser marking machine is an optical and mechatronic device that integrates laser technology and computer technology. Its working principle is that the laser generates laser, which is focused by the focusing lens and then irradiated to the surface of the marking object to form a mark on the marking object.

[0003] However, the overall performance of leather laser marking machines on the market is relatively poor. Specifically, the feeding rolls of the feeding structure of the leather laser marking machine are fixed and inflexible, and manual adjustment is required for deviation correction. The deviation correction is relatively troublesome and the correction effect is not very good. In addition, the leather laser marking machines on the market have poor marking effects on leather. For example, the leather surface is prone to adhesion of some debris or dirt, which will affect the marking effect. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a leather laser marking machine that can solve the above technical problems.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: a leather laser marking machine, characterized in that it includes: a marking machine body, which is provided with a working space; a laser head assembly, which is arranged in the working space and is used to mark the leather in the working space; a feeding structure, which is used to place a feeding roll, wherein the feeding roll is wound with leather; a first roller structure, which is used to transport the leather of the feeding structure into the working space; a wetting and cleaning structure, which is arranged in the first roller structure and is used to wet and clean the leather in the first roller structure; a receiving structure, which is used to receive the marked leather; a second roller structure, which is used to transport the marked leather to the receiving structure, wherein the second roller structure is provided with a working area for the staff to inspect the working space and leather; wherein the feeding structure is provided with a driving mechanism for driving the feeding roll of the feeding structure to move.

[0006] Furthermore, a first red light detector and a second red light detector are respectively provided on both sides above the working space of the marking machine body, the first red light detector is used to emit a first red light vertically downward, and the second red light detector is used to emit a second red light vertically downward, wherein, when it is detected that the leather in the working space is not between the first red light emitted by the first red light detector and the second red light emitted by the second red light detector, an alarm is generated, and the feeding reel of the feeding structure is driven to move by the driving mechanism so that the leather in the working space is between the first red light emitted by the first red light detector and the second red light emitted by the second red light detector.

[0007] Further, the first red light detector includes a first red light base plate, a first red light guide rail, a first red light block, a first red light screw rod, a first red light mounting plate, a first universal structure and a first red light sensor arranged on a side wall of the working space, wherein the first red light guide rail is arranged on the bottom surface of the first red light base plate, the first red light block is slidably arranged in the first red light guide rail, one end of the first red light screw rod is rotatably arranged at one end of the first red light guide rail through a first red light bearing seat, the other end of the first red light screw rod is penetrated in a side wall of the working space, the first red light screw rod is threadedly connected with the first red light block, the first red light mounting plate is arranged in the first red light block, the top end of the first universal structure is fixedly arranged in the first red light mounting plate, the first universal structure can rotate in different directions, the emission port of the first red light sensor is downward and fixedly arranged at the bottom end of the first universal structure, so that the first red light block can be driven to move along the first red light screw rod by rotating the first red light screw rod to drive the first red light block to move, so as to adjust the position of the first red light sensor. The second red light detector includes a second red light base plate, a second red light guide rail, a second red light block, a second red light lead screw, a second red light mounting plate, a second universal structure and a second red light sensor, wherein the second red light guide rail is arranged on the bottom surface of the second red light base plate, the second red light block is slidably arranged in the second red light guide rail, one end of the second red light lead screw is rotatably arranged at one end of the second red light guide rail through a second red light bearing seat, the other end of the second red light lead screw is passed through the other side wall of the working space, the second red light lead screw is threadedly connected with the second red light block, the second red light mounting plate is arranged in the second red light block, the top end of the second universal structure is fixedly arranged in the second red light mounting plate, the second universal structure can rotate in different directions, the emission port of the second red light sensor is downward and fixedly arranged at the bottom end of the second universal structure, so that the second red light block can be driven to move along the second red light lead screw by rotating the second red light lead screw to drive the second red light block to move, so as to adjust the position of the second red light sensor.

[0008] Furthermore, the feeding structure includes a feeding support frame and a feeding coil, the feeding support frame is provided with a feeding accommodating space, the feeding coil is accommodated in the feeding accommodating space, the driving mechanism includes a first feeding profile, a second feeding profile, a first feeding slide bar, a second feeding slide bar, a third feeding slide bar, a fourth feeding slide bar, a first feeding mounting plate, a second feeding mounting plate, a feeding fixing plate, a feeding motor, a feeding connecting block and a feeding screw, wherein the first feeding profile and the second feeding profile are arranged in parallel and spaced apart on the bottom wall of the feeding accommodating space, the first feeding slide bar is arranged at one end of the first feeding profile, and the third feeding slide bar is arranged at one end of the first feeding profile. A first feeding slider is slidably provided on a feeding slide bar, the second feeding slide bar is arranged at one end of the second feeding profile, the second feeding slide bar is slidably provided on the second feeding slide bar, the third feeding slide bar is arranged at the other end of the first feeding profile, the third feeding slider is slidably provided on the third feeding slide bar, the fourth feeding slide bar is arranged at the other end of the second feeding profile, and the fourth feeding slider is slidably provided on the fourth feeding slide bar, the bottom wall of one end of the first feeding mounting plate is connected to the first feeding slider, the bottom wall of the other end of the first feeding mounting plate is connected to the second feeding slider, and the second feeding The bottom wall of one end of the mounting plate is connected to the third feeding slider, the bottom wall of the other end of the second feeding mounting plate is connected to the fourth feeding slider, the bottom of the feeding roll is fixedly connected to the first feeding mounting plate and the second feeding mounting plate respectively, the feeding fixing plate is arranged between the first feeding profile and the second feeding profile, the feeding motor is arranged on the feeding fixing plate, the feeding connecting block is fixedly arranged on the bottom wall of the first feeding mounting plate, the feeding screw is threadedly connected to the feeding connecting block, and the feeding motor is connected to the feeding screw, so as to drive the feeding screw to rotate through the feeding motor; When it is detected that the leather in the working space is not between the first red light emitted by the first red light sensor and the second red light emitted by the second red light sensor, the feeding motor is controlled to drive the feeding screw to rotate, so as to drive the first feeding mounting plate to move, so as to drive the feeding roll to slide in the feeding receiving space along the length direction of the first feeding profile and the second feeding profile, thereby adjusting the position of the feeding roll to correct the leather, so that the leather in the working space is between the first red light emitted by the first red light sensor and the second red light emitted by the second red light sensor.

[0009] Furthermore, the first roller structure includes a first roller bracket, a first roller is rotatably arranged on one side of the top of the first roller bracket, and a second roller is rotatably arranged on the other side of the top of the first roller bracket, the wet cleaning structure includes a water tank for containing water, a third roller and a fourth roller, the water tank is arranged in the first roller bracket, the third roller is rotatably arranged on one side of the bottom of the inner cavity of the water tank, and the third roller is rotatably arranged on the other side of the bottom of the inner cavity of the water tank, wherein the leather output by the feeding roll of the feeding structure is first wound around the first roller, bypasses the third roller and the third roller, and is then transported to the working space after passing through the second roller.

[0010] Furthermore, a water inlet pipe is provided at the top of the water tank trough, a drain pipe is provided at the bottom of the water tank trough, and a first inclined plate is extended from the top of the water tank trough away from the feeding structure to collect water droplets dripping from the leather through the first inclined plate, wherein a second inclined plate is provided between the input port of the working space of the marking machine body and the end of the first inclined plate away from the feeding structure.

[0011] Furthermore, the laser head assembly includes a laser for generating a laser beam, a first optical path transmission module for receiving the laser beam emitted by the laser, a second optical path transmission module for receiving the laser beam emitted by the first optical path transmission module, a laser head for receiving the laser beam emitted by the second optical path transmission module, a support frame, a first optical path driving mechanism, a first protective box, a second optical path driving mechanism and a second protective box, wherein the support frame is arranged in the working space of the marking machine body, the first optical path driving mechanism is arranged on the support frame, the first protective box is slidably arranged on the first optical path driving mechanism in a horizontal direction, and the laser and the first optical path transmission module are arranged on the first Inside the protective box, the second optical path driving mechanism is fixedly arranged in the first protective box, the second protective box can be raised and lowered in the vertical direction on the second optical path driving mechanism, the second optical path transmission module and the laser head are arranged in the second protective box, wherein the bottom surface of one end of the first protective box is provided with a first projection hole, the light exit hole of the first optical path transmission module is arranged in the first projection hole, the top surface of one end of the second protective box is provided with a second projection hole corresponding to the first projection hole, the light entrance hole of the second optical path transmission module is arranged in the second projection hole, the bottom surface of the other end of the second protective box is provided with a laser light exit hole, and the light exit hole of the laser head is arranged in the laser light exit hole.

[0012] Furthermore, the laser head assembly also includes a retractable optical path accordion shield, one end of the optical path accordion shield is arranged outside the first projection hole, and the other end of the optical path accordion shield is arranged outside the second projection hole, wherein the bottom surface of one end of the first protective box is fixedly provided with a first optical path slide bar and a second optical path slide bar at intervals, and the top surface of one end of the second protective box is provided with a first optical path slide hole and a second optical path slide hole at intervals, the first optical path slide bar is passed through the first optical path slide hole, and the second optical path slide bar is passed through the second optical path slide hole.

[0013] Furthermore, the first optical path driving mechanism includes: a first optical path slide rail, which is arranged on the support frame along the horizontal direction, wherein a first optical path slider is slidably arranged on the first optical path slide rail; a second optical path slide rail, which is symmetrically arranged with respect to the first optical path slide rail and is arranged on the support frame along the horizontal direction, wherein a second optical path slider is slidably arranged on the second optical path slide rail; a first optical path lead rod, which is arranged between the first optical path slide rail and the second optical path slide rail along the horizontal direction; a first optical path driving motor, which is arranged between the first optical path slide rail and the second optical path slide rail, wherein the first optical path driving motor is connected to one end of the first optical path lead rod to drive the first optical path lead rod to rotate through the first optical path driving motor; wherein the bottom surface of the first protective box is fixedly connected to the first optical path slider and the second optical path slider, wherein a first optical path connecting block is fixedly arranged on the bottom surface of the first protective box, the first optical path connecting block is provided with a first optical path threaded hole, and the first optical path lead rod is threadedly connected in the first optical path threaded hole; The second optical path driving mechanism includes: a supporting back plate, the top of which is fixedly arranged on the side wall of the first protective box; a third optical path slide rail, which is arranged at one side end of the front of the supporting back plate in the vertical direction, wherein a third optical path slider is slidably arranged in the third optical path slide rail; a fourth optical path slide rail, which is arranged at the other side end of the front of the supporting back plate in the vertical direction, wherein a fourth optical path slider is slidably arranged in the fourth optical path slide rail; a second optical path screw rod, which is arranged on the front of the supporting back plate in the vertical direction; a second optical path driving motor, which is fixedly arranged at the top of the front of the supporting back plate, wherein the second optical path driving motor is connected to one end of the second optical path screw rod to drive the second optical path screw rod to rotate through the second optical path driving motor; wherein the side wall of the second protective box is fixedly connected to the third optical path slider and the fourth optical path slider, wherein the side wall of the second protective box is fixedly arranged with a second optical path connecting block, the second optical path connecting block is provided with a second optical path threaded hole, and the second optical path screw rod is threadedly connected in the second optical path threaded hole.

[0014] Furthermore, the second roller structure includes: a material receiving support frame, one end of which is arranged at the discharge port of the working space of the marking machine body; a first guide roller mechanism, which is arranged at one end of the material receiving support frame, and is used to guide and convey the marked leather output from the discharge port of the working space; a second guide roller mechanism, which is arranged at the other end of the material receiving support frame, and is used to guide and convey the marked leather; a third guide roller mechanism, which is arranged at the bottom between the first guide roller mechanism and the second guide roller mechanism, and is used to guide and convey the marked leather; wherein the material receiving structure is arranged at the other end of the material receiving support frame, and is used to receive the cloth conveyed from the second guide roller mechanism, and the working area is formed between the first guide roller mechanism and the second guide roller mechanism, and the third guide roller mechanism is arranged below the working area, wherein the marked leather output from the discharge port of the working space flows through the first guide roller mechanism, flows to the third guide roller mechanism, and is finally conveyed to the material receiving structure after passing through the second guide roller mechanism.

[0015] Compared with the prior art, the present invention provides a leather laser marking machine, which has the following beneficial effects: the leather laser marking machine disclosed in the present invention includes: a marking machine body, a laser head assembly, a feeding structure, a first roller structure, a wetting and cleaning structure, a receiving structure and a second roller structure. In the above manner, the leather laser marking machine disclosed in the present invention is provided with a wetting and cleaning structure, which can wet the leather to be marked, and effectively improve the leather marking effect; the feeding roll of the feeding structure of the leather laser marking machine of the present invention can be slidably arranged, and the position of the feeding roll can be automatically adjusted to achieve the correction of the leather, and the correction effect is relatively good; the leather laser marking machine of the present invention is also provided with a working area, which is convenient for the staff to detect and repair the marking status in the marking machine body when the leather laser marking machine is operating, without stopping for maintenance, and effectively ensuring work efficiency; when the laser head assembly of the leather laser marking machine of the present invention is adjusted in the vertical direction, it only needs to adjust the second protective box to achieve the lifting and lowering of the laser head, without overall adjustment, and the required driving power will be relatively small. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the feed roll deviation correction structure of the leather laser marking machine of the present invention;

[0017] Figure 2 for Figure 1 A schematic diagram of the first partial structure of the center feed roll deviation correction structure;

[0018] Figure 3 for Figure 1 A second partial structural diagram of the center feed roll deviation correction structure;

[0019] Figure 4 for Figure 1 A third partial structural diagram of the center feed roll deviation correction structure;

[0020] Figure 5 for Figure 1 A fourth partial structural diagram of the center feed roll deviation correction structure;

[0021] Figure 6 for Figure 1 A fifth partial structural diagram of the center feed roll deviation correction structure;

[0022] Figure 7 for Figure 1 The first partial structural diagram of the leather laser marking machine;

[0023] Figure 8 for Figure 1 The second partial structural diagram of the leather laser marking machine;

[0024] Fig. 9 for Figure 1 The third partial structure diagram of the leather laser marking machine;

[0025] Fig.10 for Figure 1 The fourth partial structure diagram of the leather laser marking machine;

[0026] Fig.11 for Figure 1 The fifth partial structure diagram of the leather laser marking machine;

[0027] Fig.12 for Figure 1 The sixth partial structural diagram of the leather laser marking machine;

[0028] Fig.13 for Figure 1 The seventh partial structural diagram of the leather laser marking machine;

[0029] Fig.14 for Figure 1 The eighth partial structure diagram of the leather laser marking machine;

[0030] Fig.15 for Figure 1 The ninth partial structure diagram of the leather laser marking machine;

[0031] Fig.16 for Figure 1 The tenth partial structural diagram of the leather laser marking machine;

[0032] Fig.17 for Figure 1 Schematic diagram of the eleventh partial structure of the leather laser marking machine. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figure 1-17 As shown, the present invention provides a leather laser marking machine, which includes a marking machine body 10, a laser head assembly 20, a feeding structure 30, a first roller structure 40, a wet cleaning structure 50, a second roller structure 60 and a material receiving structure 70.

[0035] The marking machine body 10 is provided with a working space.

[0036] The laser head assembly 20 is disposed in the working space and is used for marking the leather in the working space.

[0037] The feeding structure 30 is used to place a feeding roll 301 , wherein leather is wound in the feeding roll 301 .

[0038] In this embodiment, the feeding structure 30 is provided with a driving mechanism for driving the feeding roll 301 of the feeding structure 30 to move, so that the position of the feeding roll 301 can be controlled, so that the position of the feeding roll 301 can be automatically adjusted to achieve leather correction, and the correction effect is relatively good.

[0039] The first roller structure 40 is used to transport the leather from the feeding structure 30 into the working space.

[0040] The wetting and cleaning structure 50 is disposed in the first drum structure 40 , and is used for wetting and cleaning the leather in the first drum structure 40 .

[0041] The receiving structure 70 is used to receive the marked leather.

[0042] The second roller structure 60 is used to transport the marked leather to the receiving structure 70 .

[0043] Preferably, the second roller structure 60 is provided with a working area 604 for the staff to conveniently inspect the working space and leather.

[0044] In this embodiment, a first red light detector 101 and a second red light detector 102 are respectively provided on both sides above the working space of the marking machine body 10, wherein the first red light detector 101 is used to emit a first red light vertically downward, and the second red light detector 102 is used to emit a second red light vertically downward. It should be understood that the first red light detector 101 and the second red light detector 102 are used to detect whether the leather in the working space is deviated, that is, under normal circumstances, the leather is transported between the first red light and the second red light in the working space.

[0045] Preferably, when it is detected that the leather in the working space is not between the first red light emitted by the first red light detector 101 and the second red light emitted by the second red light detector 102, an alarm is generated, and the feeding roll 301 of the feeding structure 30 is driven to move by the driving mechanism so that the leather in the working space is between the first red light emitted by the first red light detector 101 and the second red light emitted by the second red light detector 102.

[0046] Specifically, the first red light detector 101 includes a first red light base plate 1011, a first red light guide rail 1012, a first red slider 1013, a first red light screw rod 1014, a first red light mounting plate 1015, a first universal structure 1016 and a first red light sensor 1017, wherein the first red light guide rail 1012 is arranged on the bottom surface of the first red light base plate 1011, the first red slider 1013 is slidably arranged in the first red light guide rail 1012, one end of the first red light screw rod 1014 is rotatably arranged at one end of the first red light guide rail 1012 through a first red light bearing seat 1018, and the other end of the first red light screw rod 1014 is penetrated in a side wall of the working space, and the first The red light screw rod 1014 is threadedly connected to the first red light slider 1013, the first red light mounting plate 1015 is arranged in the first red light slider 1013, the top end of the first universal structure 1016 is fixedly arranged in the first red light mounting plate 1015, the first universal structure 1016 can rotate in different directions, and the emission port of the first red light sensor 1017 is downwardly facing and fixedly arranged at the bottom end of the first universal structure 1016, so that the first red light slider 1013 can be driven to move along the first red light screw rod 1014 by rotating the first red light screw rod 1014, so as to drive the first red light slider 1013 to move, thereby driving the first red light mounting plate 1015 to move, so as to adjust the position of the first red light sensor 1017.

[0047] Furthermore, the second red light detector 102 includes a second red light base plate 1021, a second red light guide rail 1022, a second red light slider, a second red light lead screw 1024, a second red light mounting plate 1025, a second universal structure 1026, and a second red light sensor 1027, wherein the second red light guide rail 1022 is arranged on the bottom surface of the second red light base plate 1021, the second red light slider is slidably arranged in the second red light guide rail 1022, one end of the second red light lead screw 1024 is rotatably arranged at one end of the second red light guide rail 1022 through a second red light bearing seat 1028, and the other end of the second red light lead screw 1024 is passed through the other side of the working space. In the side wall, the second red light screw rod 1024 is threadedly connected to the second red slider, the second red light mounting plate 1025 is arranged in the second red slider, the top end of the second universal structure 1026 is fixedly arranged in the second red light mounting plate 1025, the second universal structure 1026 can rotate in different directions, and the emission port of the second red light sensor 1027 is downward and fixedly arranged at the bottom end of the second universal structure 1026, so that the second red light slider can be driven to move along the second red light screw rod 1024 by rotating the second red light screw rod 1024, so as to drive the second red slider to move, thereby driving the second red light mounting plate 1025 to move, so as to adjust the position of the second red light sensor 1027.

[0048] It should be understood that since the positions of the first red light sensor 1017 and the second red light sensor 1027 are adjustable, the conveying range of the leather can be adjusted as needed.

[0049] In this embodiment, the feeding structure 30 includes a feeding support frame 302 and a feeding roll 301 . The feeding support frame 302 is provided with a feeding accommodating space, wherein the feeding roll 301 is accommodated in the feeding accommodating space.

[0050] Preferably, the driving mechanism includes a first feeding profile 311, a second feeding profile 312, a first feeding slide bar 313, a second feeding slide bar 314, a third feeding slide bar 315, a fourth feeding slide bar 316, a first feeding mounting plate 317, a second feeding mounting plate 318, a feeding fixing plate 319, a feeding motor 320, a feeding connecting block 321 and a feeding screw 322.

[0051] The first feeding profile 311 and the second feeding profile 312 are arranged in parallel and spaced apart on the bottom wall of the feeding accommodating space, the first feeding slide bar 313 is arranged at one end of the first feeding profile 311, and the first feeding slide bar 3131 is slidably arranged on the first feeding slide bar 313, the second feeding slide bar 314 is arranged at one end of the second feeding profile 312, and the second feeding slide bar 3141 is slidably arranged on the second feeding slide bar 314, the third feeding slide bar 315 is arranged at the other end of the first feeding profile 311, and the third feeding slide bar 3151 is slidably arranged on the third feeding slide bar 315, the fourth feeding slide bar 316 is arranged at the other end of the second feeding profile 312, and the fourth feeding A fourth feeding slider 3161 is slidably arranged on the slide bar 316, and the bottom wall of one end of the first feeding mounting plate 317 is connected to the first feeding slider 3131, and the bottom wall of the other end of the first feeding mounting plate 317 is connected to the second feeding slider 3141, so that the first feeding mounting plate 317 is slidably arranged on the first feeding slide bar 313 and the second feeding slide bar 314, the bottom wall of one end of the second feeding mounting plate 318 is connected to the third feeding slider 3151, and the bottom wall of the other end of the second feeding mounting plate 318 is connected to the fourth feeding slider 3161, so that the second feeding mounting plate 318 is slidably arranged on the third feeding slide bar 315 and the fourth feeding slide bar 316.

[0052] Preferably, the bottom of the feed roll 301 is fixedly connected to the first feed mounting plate 317 and the second feed mounting plate 318, respectively, so that the feed roll 301 moves synchronously with the first feed mounting plate 317 and the second feed mounting plate 318. It should be understood that the bottom of the feed roll 301 is provided with a corresponding support structure, that is, the feed roll 301 is rotatably arranged on the support structure, and the support structure is fixedly connected to the first feed mounting plate 317 and the second feed mounting plate 318.

[0053] Furthermore, the feeding fixing plate 319 is arranged between the first feeding profile 311 and the second feeding profile 312, the feeding motor 320 is arranged on the feeding fixing plate 319, the feeding connecting block 321 is fixedly arranged on the bottom wall of the first feeding mounting plate 317, the feeding screw 322 is threadedly connected to the feeding connecting block 321, and the feeding motor 320 is connected to the feeding screw 322, so that the feeding screw 322 is driven to rotate by the feeding motor 320, so as to drive the feeding connecting block 321 to move along the feeding screw 322, thereby driving the first feeding mounting plate 317 to move, so as to drive the feeding roll 301 to move, and to adjust the position of the feeding roll 301, so as to realize rapid deviation correction of the leather.

[0054] Preferably, when it is detected that the leather in the working space is not between the first red light emitted by the first red light sensor 1017 and the second red light emitted by the second red light sensor 1027, the feeding motor 320 is controlled to drive the feeding screw 322 to rotate, so as to drive the first feeding mounting plate 317 to move, so as to drive the feeding roll 301 to slide in the feeding receiving space along the length direction of the first feeding profile 311 and the second feeding profile 312, thereby adjusting the position of the feeding roll 301 to correct the leather, so that the leather in the working space is between the first red light emitted by the first red light sensor 1017 and the second red light emitted by the second red light sensor 1027.

[0055] In this embodiment, the first roller structure 40 includes a first roller support 401, a first roller 402 is rotatably provided on one side of the top of the first roller support 401, and a second roller 403 is rotatably provided on the other side of the top of the first roller support 401. Further, the wet cleaning structure 50 includes a water tank 501 for receiving water, a third roller 502 and a fourth roller 503, wherein the water tank 501 is provided in the first roller support 401, the third roller 502 is rotatably provided on one side of the bottom of the inner cavity of the water tank 501, and the fourth roller 503 is rotatably provided on the other side of the bottom of the inner cavity of the water tank 501, and the leather output by the feeding roll 301 of the feeding structure 30 is firstly wound around the first roller 402, and after passing through the third roller 502 and the fourth roller 503, it is transported to the working space after passing through the second roller 403. That is to say, the leather outputted from the feeding roll 301 of the feeding structure 30 will enter the water tank 501 for wetting and cleaning, and the cleaned leather will then enter the working space for marking.

[0056] Preferably, a water inlet pipe 5011 is provided at the top of the water tank 501, and a drain pipe 5012 is provided at the bottom of the water tank 501, so that clean water can be transported to the water tank 501 through the water inlet pipe 5011, and water at the bottom can be discharged through the drain pipe 5012.

[0057] Furthermore, a first inclined plate 504 is provided at an angle extending from one end of the top of the water tank 501 away from the feeding structure 30 , so that water drops dropped from the leather can be collected by the first inclined plate 504 .

[0058] Furthermore, a second inclined plate 505 is arranged at an angle between the input port of the working space of the marking machine body 10 and one end of the first inclined plate 504 away from the feeding structure 30, so that water droplets dripping from the leather between the input port of the working space and one end of the first inclined plate 504 are collected in the second inclined plate 505.

[0059] Preferably, one end of the second inclined plate 505 away from the input port of the workspace is connected to one end of the first inclined plate 504, and the other end of the second inclined plate 505 close to the input port of the workspace is located at a higher level than the level of one end of the first inclined plate 504. It should be understood that the first inclined plate 504 and the second inclined plate 505 can collect water drops from the leather output from the water tank 501.

[0060] In addition, in some embodiments, the third roller 502 and the fourth roller 503 are arranged in the water tank 501 in a lifting manner, so that the third roller 502 and the fourth roller 503 can be controlled to be in or out of the water of the water tank 501 as needed. Specifically, when it is detected that the leather needs to be wetted and cleaned, the third roller 502 and the fourth roller 503 are controlled to descend into the water of the water tank 501 to wet and clean the leather with the water in the water tank 501. When it is detected that the leather does not need to be wetted and cleaned, the third roller 502 and the fourth roller 503 are controlled to rise to be above the water surface of the water tank 501, so that the leather flowing into the first roller structure 40 is not wetted and cleaned.

[0061] Specifically, a visual camera is provided above the feed roll 301 of the feed structure 30, and the visual camera is used to detect whether the leather output from the feed roll 301 of the feed structure 30 needs to be cleaned. When the visual camera detects that the leather output from the feed roll 301 of the feed structure 30 needs to be cleaned, the third roller 502 and the fourth roller 503 are controlled to descend into the water in the water tank 501 to wet and clean the leather with the water in the water tank 501; when the visual camera detects that the leather output from the feed roll 301 of the feed structure 30 does not need to be cleaned, the third roller 502 and the fourth roller 503 are controlled to rise to be above the water surface of the water tank 501, so that the leather flowing into the first roller structure 40 is not wetted and cleaned.

[0062] Furthermore, a liquid level sensor for detecting the liquid level of the water tank 501 is provided in the water tank 501. When the liquid level sensor detects that the water level in the water tank 501 reaches a first preset value, the third roller 502 and the fourth roller 503 are controlled to descend so that the third roller 502 and the fourth roller 503 are at a second preset value, wherein the second preset value is below the first preset value, so that when the water in the water tank 501 is relatively small, the third roller 502 and the fourth roller 503 are still in the water in the water tank 501.

[0063] Furthermore, an agitator is provided in the water tank 501. When the third roller 502 and the fourth roller 503 are in the water of the water tank 501 and it is detected that the leather is in the water of the water tank 501, the agitator is controlled to drive the water in the water tank 501 to move, thereby achieving a better cleaning effect.

[0064] Furthermore, a spray head is provided in the water tank 501 for spraying high-pressure water on the leather that has not entered the water tank 501, so that the leather can be cleaned with high pressure by the spray head, and the cleaning effect is better. It should be understood that the spray head is used to spray and clean the top surface (i.e., the side facing upward) of the leather, which can achieve a better marking effect.

[0065] Specifically, the first and second water tank slide rails are respectively provided at both ends of one side of the bottom of the inner cavity of the water tank 501 in the vertical direction, the first water tank slide rail is provided with a first water tank slider for sliding, the second water tank slide rail is provided with a second water tank slider for sliding, and the third roller 502 is rotatably provided in the first and second water tank sliders. Furthermore, a first lifting cylinder is provided in the water tank 501, and the telescopic rod of the first lifting cylinder is connected to the first water tank slider, so as to drive the third roller 502 to rise and fall through the first lifting cylinder.

[0066] Specifically, the other two ends of the bottom of the inner cavity of the water tank 501 are respectively provided with a third water tank rail and a fourth water tank rail in the vertical direction, a third water tank slider is slidably provided on the third water tank rail, a fourth water tank slider is slidably provided on the fourth water tank rail, and the fourth roller 503 is rotatably provided in the third water tank slider and the fourth water tank slider. Furthermore, a second lifting cylinder is provided in the water tank 501, and the telescopic rod of the second lifting cylinder is connected to the third water tank slider, so as to drive the fourth roller 503 to rise and fall through the second lifting cylinder.

[0067] In this embodiment, the laser head assembly 20 includes a laser 201 for generating a laser beam, a first optical path transport module 202 for receiving the laser beam emitted by the laser 201, a second optical path transport module 203 for receiving the laser beam emitted by the first optical path transport module 22, a laser head 200 for receiving the laser beam emitted by the second optical path transport module 202, a support frame 204, a first optical path driving mechanism 205, a first protective box 206, a second optical path driving mechanism 207 and a second protective box 208.

[0068] The support frame 204 is arranged in the working space of the marking machine body 10, the first optical path driving mechanism 205 is arranged on the support frame 204, the first protective box 206 is arranged on the first optical path driving mechanism 205 for sliding in the horizontal direction, and the laser 201 and the first optical path transmission module 202 are arranged in the first protective box 206, so that the laser 201 and the first optical path transmission module 202 follow the first protective box 206 and move horizontally on the first optical path driving mechanism 205 synchronously.

[0069] The second optical path driving mechanism 207 is fixedly arranged in the first protective box 206, and the second protective box 208 can be raised and lowered on the second optical path driving mechanism 207 in the vertical direction. The second optical path transmission module 203 and the laser head 200 are arranged in the second protective box 208, so that the second optical path transmission module 203 and the laser head 200 follow the second protective box 208 to rise and fall on the second optical path driving mechanism 207.

[0070] In this embodiment, a first projection hole is provided on the bottom surface of one end of the first protective box 206, and a light exit hole of the first optical path transport module 202 is arranged in the first projection hole, so that the first optical path transport module 202 can emit a laser beam through the first projection hole. Furthermore, a second projection hole corresponding to the first projection hole is provided on the top surface of one end of the second protective box 208 (that is, during the lifting process, the first projection hole is directly above the second projection hole), and a light entrance hole of the second optical path transport module 203 is arranged in the second projection hole, so that the laser beam emitted by the first optical path transport module 202 can enter the second optical path transport module 203 through the second projection hole. It should be understood that one end of the first protective box 206 is directly above one end of the second protective box 208.

[0071] It should be understood that since the second optical path transport module 203 and the laser head 200 are arranged in the second protective box 208, when the first optical path driving mechanism 205 drives the first protective box 206 to move horizontally, the second optical path transport module 203 and the laser head 200 also move horizontally with the second protective box 208. In other words, when it is necessary to drive the laser head 200 to move horizontally, it is necessary to drive the entire optical path assembly to move horizontally. In addition, since the second protective box 208 can be raised and lowered in the vertical direction on the second optical path driving mechanism 207, when it is necessary to drive the laser head 200 to move up and down, it is necessary to drive the second protective box 208 to move up and down to realize the control of the laser head 200 to move up and down, without the need to raise and lower the entire laser assembly, that is, without the need for overall adjustment, and the required driving power will be relatively small.

[0072] Furthermore, a laser light exit hole 2081 is provided on the bottom surface of the other end of the second protective box 208, and the light exit hole of the laser head 200 is arranged in the laser light exit hole 2081, so that the laser beam emitted by the laser head 200 is projected onto the marked object in the working space through the laser light exit hole 2081.

[0073] In this embodiment, the laser head assembly also includes a retractable optical path accordion shield 209, wherein one end of the optical path accordion shield 209 is disposed outside the first projection hole, and the other end of the optical path accordion shield 209 is disposed outside the second projection hole. It should be understood that the retractable optical path accordion shield 209 is mainly used to protect the laser beam.

[0074] Further, the bottom surface of one end of the first protective box 206 is fixedly provided with a first optical path slide bar 2061 and a second optical path slide bar 2062 at intervals, and the top surface of one end of the second protective box 208 is provided with a first optical path slide hole and a second optical path slide hole at intervals, the first optical path slide bar 2061 is inserted into the first optical path slide hole, and the second optical path slide bar 2062 is inserted into the second optical path slide hole. It should be understood that the first optical path slide bar 2061 and the second optical path slide bar 2062 are provided mainly to assist the lifting of the second protective box 208.

[0075] Specifically, the first optical path driving mechanism 205 includes a first optical path slide rail 2051 , a second optical path slide rail 2052 , a first optical path lead screw 2053 and a first optical path driving motor 2054 . Among them, the first optical path slide rail 2051 is arranged on the support frame 204 in the horizontal direction, the first optical path slider 2055 is slidably arranged on the first optical path slide rail 2051, the second optical path slide rail 2052 is symmetrically arranged with the first optical path slide rail 2051, the second optical path slide rail 2052 is arranged on the support frame 204 in the horizontal direction, the second optical path slider 2056 is slidably arranged on the second optical path slide rail 2052, the first optical path lead rod 2053 is arranged between the first optical path slide rail 2051 and the second optical path slide rail 2052 in the horizontal direction, the first optical path driving motor 2054 is arranged between the first optical path slide rail 2051 and the second optical path slide rail 2052, and the first optical path driving motor 2054 is connected to one end of the first optical path lead rod 2053 to drive the first optical path lead rod 2053 to rotate through the first optical path driving motor 2054.

[0076] Furthermore, the bottom surface of the first protective box 206 is fixedly connected to the first optical path slider 2055 and the second optical path slider 2056, wherein the bottom surface of the first protective box 206 is fixedly provided with a first optical path connecting block 2057, the first optical path connecting block 2057 is provided with a first optical path threaded hole, and the first optical path screw rod 2053 is threadedly connected in the first optical path threaded hole, so that when the first optical path screw rod 2053 rotates, the first optical path connecting block 2057 rotates along the first optical path screw rod 2053, thereby driving the first protective box 206 to slide on the first optical path slide rail 2051 and the second optical path slide rail 2052, and then the first protective box 206 and the second protective box 208 slide synchronously on the first optical path slide rail 2051 and the second optical path slide rail 2052.

[0077] The second optical path driving mechanism 207 includes a supporting back plate 2071 , a third optical path slide rail 2072 , a fourth optical path slide rail 2073 , a second optical path lead screw 2074 and a second optical path driving motor 2075 . The top end of the support back plate 2071 is fixedly set on the side wall of the first protective box 206 to move synchronously with the first protective box 206, the third optical path slide rail 2072 is set at one side end of the front side of the support back plate 2071 in the vertical direction, and the third optical path slider 2076 is slidably set in the third optical path slide rail 2072, the fourth optical path slide rail 2073 is set at the other side end of the front side of the support back plate 2071 in the vertical direction, and the fourth optical path slider 2077 is slidably set in the fourth optical path slide rail 2073, the second optical path lead rod 2074 is set on the front side of the support back plate 2071 in the vertical direction, and the second optical path driving motor 2075 is fixedly set at the top end of the front side of the support back plate 2071, wherein the second optical path driving motor 2075 is connected to one end of the second optical path lead rod 2074 to drive the second optical path lead rod 2074 to rotate through the second optical path driving motor 2075.

[0078] Furthermore, the side wall of the second protective box 208 is fixedly connected to the third optical path slider 2076 and the fourth optical path slider 2077, wherein the side wall of the second protective box 208 is fixedly provided with a second optical path connecting block 2080, the second optical path connecting block 2080 is provided with a second optical path threaded hole, and the second optical path screw rod 2074 is threadedly connected to the second optical path threaded hole, so that when the second optical path screw rod 2074 rotates, the second optical path connecting block 2080 moves along the second optical path screw rod 2074, thereby driving the second protective box 208 to slide on the third optical path slide rail 2072 and the fourth optical path slide rail 2073.

[0079] In this embodiment, the second roller structure 60 includes a receiving support frame 600, a first guide roller mechanism 601, a second guide roller mechanism 602 and a third guide roller mechanism 603. Among them, one end of the receiving support frame 600 is arranged at the discharge port of the working space of the marking machine body 10, the first guide roller mechanism 601 is arranged at one end of the receiving support frame 600, and is used to guide and convey the marked leather output from the discharge port of the working space, the second guide roller mechanism 602 is arranged at the other end of the receiving support frame 600, and is used to guide and convey the marked leather, and the third guide roller mechanism 603 is arranged at the bottom between the first guide roller mechanism 601 and the second guide roller mechanism 602, and is used to guide and convey the marked leather.

[0080] The material receiving structure 70 is disposed at the other end of the material receiving support frame 600, and is used to receive the cloth conveyed from the second guide roller mechanism 602. Preferably, the marked leather output from the material outlet of the working space flows through the first guide roller mechanism 601, flows to the third guide roller mechanism 603, and finally passes through the second guide roller mechanism 602 and is conveyed to the material receiving structure 70.

[0081] In this embodiment, a working area 604 is formed between the first guide roller mechanism 601 and the second guide roller mechanism 602, wherein the third guide roller mechanism 603 is arranged below the working area 604. It should be understood that the staff can stand in the working area 604 to perform non-stop maintenance on the laser marking machine, including maintenance of the marking condition in the marking machine body 10, and can also inspect the leather on the guide roller, while the leather is transported from the third guide roller mechanism 603, which does not affect the work efficiency.

[0082] Furthermore, the working area 604 includes a rectangular support pad 6041 disposed between the first guide roller mechanism 601 and the second guide roller mechanism 602, so that the staff can step on it for maintenance.

[0083] In this embodiment, the third guide roller mechanism 603 includes a first bottom roller 6031 and a second bottom roller 6032 rotatably arranged below the support block 6041, wherein the leather output from the first guide roller mechanism 601 is wound around the first bottom roller 6031, transported to the second bottom roller 6032 and wound around the second bottom roller 6032, and then transported to the second guide roller mechanism 602, so that the leather flows from under the support block 6041, and the staff can stand on the support block 6041 to carry out maintenance without stopping the machine.

[0084] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0085] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A leather laser marking machine, characterized in that: include: The marking machine body is equipped with a working space; A laser head assembly is arranged in the working space and is used for marking the leather in the working space; A feeding structure, used for placing a feeding roll, wherein the feeding roll is wound with leather; A first roller structure, used for conveying the leather of the feeding structure into the working space; A wetting and cleaning structure, disposed in the first drum structure, for wetting and cleaning the leather in the first drum structure; A receiving structure, used for receiving the marked leather; The second roller structure is used to convey the marked leather to the receiving structure, wherein the second roller structure is provided with a work area for the staff to inspect the working space and the leather; Wherein, the feeding structure is provided with a driving mechanism for driving the feeding roll of the feeding structure to move; A first red light detector and a second red light detector are respectively provided on both sides above the working space of the marking machine body, the first red light detector is used to emit a first red light vertically downward, and the second red light detector is used to emit a second red light vertically downward, wherein, when it is detected that the leather in the working space is not between the first red light emitted by the first red light detector and the second red light emitted by the second red light detector, an alarm is generated, and the feeding reel of the feeding structure is driven to move by the driving mechanism so that the leather in the working space is between the first red light emitted by the first red light detector and the second red light emitted by the second red light detector; The first red light detector comprises a first red light bottom plate, a first red light guide rail, a first red light block, a first red light lead screw, a first red light mounting plate, a first universal structure and a first red light sensor, wherein the first red light guide rail is arranged on the bottom surface of the first red light bottom plate, the first red light block is slidably arranged in the first red light guide rail, one end of the first red light lead screw is rotatably arranged at one end of the first red light guide rail through a first red light bearing seat, the other end of the first red light lead screw is penetrated in a side wall of the working space, the first red light lead screw is threadedly connected with the first red light block, the first red light mounting plate is arranged in the first red light block, the top end of the first universal structure is fixedly arranged in the first red light mounting plate, the first universal structure can rotate in different directions, the emission port of the first red light sensor is downwardly facing and fixedly arranged at the bottom end of the first universal structure, so that the first red light block can be driven to move along the first red light lead screw by rotating the first red light lead screw to drive the first red light block to move, so as to adjust the position of the first red light sensor; The second red light detector includes a second red light base plate, a second red light guide rail, a second red light block, a second red light lead screw, a second red light mounting plate, a second universal structure and a second red light sensor arranged on the other side wall of the working space, wherein the second red light guide rail is arranged on the bottom surface of the second red light base plate, the second red light block is slidably arranged in the second red light guide rail, one end of the second red light lead screw is rotatably arranged at one end of the second red light guide rail through a second red light bearing seat, the other end of the second red light lead screw is penetrated in the other side wall of the working space, the second red light lead screw is threadedly connected with the second red light block, the second red light mounting plate is arranged in the second red light block, the top end of the second universal structure is fixedly arranged in the second red light mounting plate, the second universal structure can rotate in different directions, the emission port of the second red light sensor is downward and fixedly arranged at the bottom end of the second universal structure, so that the second red light block can be driven to move along the second red light lead screw by rotating the second red light lead screw to drive the second red light block to move, so as to adjust the position of the second red light sensor.

2. The leather laser marking machine according to claim 1, characterized in that: The feeding structure comprises a feeding support frame and a feeding coil, the feeding support frame is provided with a feeding accommodating space, the feeding coil is accommodated in the feeding accommodating space, and the driving mechanism comprises a first feeding profile, a second feeding profile, a first feeding slide bar, a second feeding slide bar, a third feeding slide bar, a fourth feeding slide bar, a first feeding mounting plate, a second feeding mounting plate, a feeding fixing plate, a feeding motor, a feeding connecting block and a feeding screw rod, wherein the first feeding profile and the second feeding profile are arranged in parallel and spaced apart on the bottom wall of the feeding accommodating space, the first feeding slide bar is arranged at one end of the first feeding profile, a first feeding slider is slidably arranged on the first feeding slide bar, the second feeding slide bar is arranged at one end of the second feeding profile, a second feeding slider is slidably arranged on the second feeding slide bar, the third feeding slide bar is arranged at the other end of the first feeding profile, and a third feeding slider is slidably arranged on the third feeding slide bar. The fourth feeding slide bar is arranged on the other end of the second feeding profile, and a fourth feeding slide bar is slidably arranged on the fourth feeding slide bar, and a bottom wall of one end of the first feeding mounting plate is connected to the first feeding slide bar, and the bottom wall of the other end of the first feeding mounting plate is connected to the second feeding slide bar, and the bottom wall of one end of the second feeding mounting plate is connected to the third feeding slide bar, and the bottom wall of the other end of the second feeding mounting plate is connected to the fourth feeding slide bar, and the bottom of the feeding roll is fixedly connected to the first feeding mounting plate and the second feeding mounting plate respectively, and the feeding fixing plate is arranged between the first feeding profile and the second feeding profile, and the feeding motor is arranged on the feeding fixing plate, and the feeding connecting block is fixedly arranged on the bottom wall of the first feeding mounting plate, the feeding screw rod is threadedly connected to the feeding connecting block, and the feeding motor is connected to the feeding screw rod to drive the feeding screw rod to rotate through the feeding motor; When it is detected that the leather in the working space is not between the first red light emitted by the first red light sensor and the second red light emitted by the second red light sensor, the feeding motor is controlled to drive the feeding screw to rotate, so as to drive the first feeding mounting plate to move, so as to drive the feeding roll to slide in the feeding receiving space along the length direction of the first feeding profile and the second feeding profile, thereby adjusting the position of the feeding roll to correct the leather, so that the leather in the working space is between the first red light emitted by the first red light sensor and the second red light emitted by the second red light sensor.

3. The leather laser marking machine according to claim 1, characterized in that: The first roller structure includes a first roller bracket, a first roller is rotatably arranged on one side of the top of the first roller bracket, and a second roller is rotatably arranged on the other side of the top of the first roller bracket, the wet cleaning structure includes a water tank for containing water, a third roller and a fourth roller, the water tank is arranged in the first roller bracket, the third roller is rotatably arranged on one side of the bottom of the inner cavity of the water tank, and the third roller is rotatably arranged on the other side of the bottom of the inner cavity of the water tank, wherein the leather output by the feeding roll of the feeding structure is first wound around the first roller, bypasses the third roller and the third roller, and is then transported to the working space after passing through the second roller.

4. The leather laser marking machine according to claim 3, characterized in that: A water inlet pipe is provided at the top of the water tank trough, a drain pipe is provided at the bottom of the water tank trough, a first inclined plate is provided at an angle extending from one end of the top of the water tank trough away from the feeding structure to collect water droplets dripping from the leather through the first inclined plate, and a second inclined plate is provided at an angle between the input port of the working space of the marking machine body and the end of the first inclined plate away from the feeding structure.

5. The leather laser marking machine according to claim 3, characterized in that: The laser head assembly includes a laser for generating a laser beam, a first optical path transmission module for receiving the laser beam emitted by the laser, a second optical path transmission module for receiving the laser beam emitted by the first optical path transmission module, a laser head for receiving the laser beam emitted by the second optical path transmission module, a support frame, a first optical path driving mechanism, a first protective box, a second optical path driving mechanism and a second protective box, wherein the support frame is arranged in the working space of the marking machine body, the first optical path driving mechanism is arranged on the support frame, the first protective box is slidably arranged on the first optical path driving mechanism in a horizontal direction, and the laser and the first optical path transmission module are arranged in the first protective box The second optical path driving mechanism is fixedly arranged in the first protective box, the second protective box can be raised and lowered on the second optical path driving mechanism in the vertical direction, the second optical path transmission module and the laser head are arranged in the second protective box, wherein the bottom surface of one end of the first protective box is provided with a first projection hole, the light outlet hole of the first optical path transmission module is arranged in the first projection hole, the top surface of one end of the second protective box is provided with a second projection hole corresponding to the first projection hole, the light entrance hole of the second optical path transmission module is arranged in the second projection hole, the bottom surface of the other end of the second protective box is provided with a laser light outlet hole, and the light outlet hole of the laser head is arranged in the laser light outlet hole.

6. The leather laser marking machine according to claim 5, characterized in that: The laser head assembly also includes a retractable optical path accordion shield, one end of which is arranged outside the first projection hole, and the other end of which is arranged outside the second projection hole, wherein a first optical path sliding rod and a second optical path sliding rod are fixedly arranged on the bottom surface of one end of the first protective box at intervals, and a first optical path sliding hole and a second optical path sliding hole are arranged on the top surface of one end of the second protective box at intervals, the first optical path sliding rod is inserted into the first optical path sliding hole, and the second optical path sliding rod is inserted into the second optical path sliding hole.

7. The leather laser marking machine according to claim 6, characterized in that: The first optical path driving mechanism comprises: A first optical path slide rail is arranged on the support frame along a horizontal direction, wherein a first optical path slider is slidably arranged on the first optical path slide rail; A second optical path slide rail is symmetrically arranged with respect to the first optical path slide rail and is arranged on the support frame along a horizontal direction, wherein a second optical path slider is slidably arranged on the second optical path slide rail; A first optical path lead screw rod is arranged between the first optical path slide rail and the second optical path slide rail in a horizontal direction; A first optical path driving motor is arranged between the first optical path slide rail and the second optical path slide rail, wherein the first optical path driving motor is connected to one end of the first optical path lead screw to drive the first optical path lead screw to rotate through the first optical path driving motor; Wherein, the bottom surface of the first protective box is fixedly connected to the first optical path slider and the second optical path slider, wherein the bottom surface of the first protective box is fixedly provided with a first optical path connecting block, the first optical path connecting block is provided with a first optical path threaded hole, and the first optical path lead screw is threadedly connected in the first optical path threaded hole; The second optical path driving mechanism comprises: A supporting back plate, the top end of which is fixedly mounted on the side wall of the first protective box; A third optical path slide rail is arranged at one side end of the front surface of the supporting back plate in the vertical direction, wherein a third optical path slider is slidably arranged in the third optical path slide rail; A fourth optical path slide rail is arranged at the other side end of the front surface of the supporting back plate in the vertical direction, wherein a fourth optical path slider is slidably arranged in the fourth optical path slide rail; A second optical path screw rod is arranged on the front side of the supporting back plate along the vertical direction; A second optical path driving motor is fixedly arranged at the top end of the front surface of the supporting back plate, wherein the second optical path driving motor is connected to one end of the second optical path screw rod, so as to drive the second optical path screw rod to rotate through the second optical path driving motor; Among them, the side wall of the second protective box is fixedly connected to the third optical path slider and the fourth optical path slider, and the side wall of the second protective box is fixedly provided with a second optical path connecting block, the second optical path connecting block is provided with a second optical path threaded hole, and the second optical path lead screw is threadedly connected in the second optical path threaded hole.

8. The leather laser marking machine according to claim 3, characterized in that: The second roller structure comprises: A material receiving support frame, one end of which is arranged at the material outlet of the working space of the marking machine body; A first guide roller mechanism is provided at one end of the material receiving support frame and is used for guiding and conveying the marked leather output from the material output port of the working space; A second guide roller mechanism is arranged at the other end of the receiving support frame and is used for guiding and conveying the marked leather; A third guide roller mechanism, disposed at the bottom between the first guide roller mechanism and the second guide roller mechanism, and used for guiding and conveying the marked leather; Wherein, the material receiving structure is arranged at the other end of the material receiving support frame, and is used for receiving the cloth transported from the second guide roller mechanism, and the working area is formed between the first guide roller mechanism and the second guide roller mechanism, and the third guide roller mechanism is arranged below the working area, wherein the marked leather output from the discharge port of the working space flows through the first guide roller mechanism, flows to the third guide roller mechanism, and is finally transported to the material receiving structure after passing through the second guide roller mechanism.

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