CN112919144A

CN112919144A - Marking device

Info

Publication number: CN112919144A
Application number: CN202110305377.8A
Authority: CN
Inventors: 申昌辉; 李建平; 徐兆华; 汪平; 颜广文; 叶凯云; 杨勇; 盛辉; 张凯
Original assignee: Ted Laser Huizhou Co ltd
Current assignee: Ted Laser Huizhou Co ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2021-06-08

Abstract

The invention discloses a marking device which comprises a conveying mechanism, two loading mechanisms and a marking mechanism. The conveying mechanism comprises a conveying track extending horizontally, the two charging mechanisms are respectively arranged at two ends of the conveying track and used for feeding, the other charging mechanism is used for receiving materials, and the charging mechanisms comprise lifting devices and first lifting devices. The lifting device is located above the conveying track and used for lifting a plurality of stacked material boxes, and the lifting device can also stretch and move along the horizontal direction to be separated from the material boxes. The first lifting device is positioned below the conveying track and can extend to the upper part of the conveying track to support the material box so as to drive the material box to do lifting motion. The marking mechanism is arranged between the two loading mechanisms and located above the transportation track, and the marking mechanism is used for marking a product. The marking device can improve the marking efficiency.

Description

Marking device

Technical Field

The invention relates to the technical field of automatic marking, in particular to marking equipment.

Background

In beating the mark technical field, some products beat mark equipment and beat mark because be not convenient for directly put to beat because of being not convenient for, for example the product structure is not convenient for the clamping, perhaps circulation in-process needs protection etc. and then need through the first clamping of clamping tool (or magazine), then go up unloading, circulation, location, beat mark etc. through the clamping tool on beat mark equipment. However, some conventional marking devices are low in efficiency, and time are long when products and adopted clamping jigs are more.

The above is only for the purpose of assisting understanding of the technical solutions of the present invention, and does not represent an admission that the above is the prior art.

Disclosure of Invention

The invention mainly aims to provide marking equipment and aims to solve the technical problem that existing marking equipment is low in efficiency.

In order to achieve the purpose, the marking device provided by the invention comprises a conveying mechanism, two loading mechanisms and a marking mechanism. The conveying mechanism comprises a conveying track extending horizontally, the two charging mechanisms are respectively arranged at two ends of the conveying track and used for feeding, the other charging mechanism is used for receiving materials, and the charging mechanisms comprise lifting devices and first lifting devices. The lifting device is located above the conveying track and used for lifting a plurality of stacked material boxes, and the lifting device can also stretch and move along the horizontal direction to be separated from the material boxes. The first lifting device is positioned below the conveying track and can extend to the upper part of the conveying track to support the material box so as to drive the material box to do lifting motion. The marking mechanism is arranged between the two loading mechanisms and located above the transportation track, and the marking mechanism is used for marking a product.

In one embodiment, the lifting device comprises a lifting plate, a sliding block, a sliding rail and a first cylinder, wherein the lifting plate is connected with the first cylinder through the sliding block, and the sliding block is slidably mounted on the sliding rail; and/or each charging mechanism is provided with a plurality of lifting devices which lift the material box together.

In an embodiment, the bottom surface of the magazine is provided with a positioning hole, the first lifting device comprises a first electric cylinder and a supporting plate connected to the first electric cylinder, and the supporting plate is provided with a positioning protrusion which is matched and inserted with the positioning hole.

In an embodiment, the loading mechanism further comprises a plurality of limiting stoppers, the limiting stoppers extend along the stacking direction of the material box and jointly enclose a limiting through groove, and the limiting through groove is used for limiting the displacement of the material box in the horizontal direction.

In an embodiment, the charging mechanism further comprises a plurality of material sensors arranged at intervals along the stacking direction of the cartridges and configured to sense the cartridges.

In one embodiment, the transportation rail is provided with a plurality of rollers for supporting the material box, and the rollers are arranged along the extension direction of the transportation rail; the conveying mechanism further comprises a first pushing block and a second air cylinder for driving the first pushing block to move along the conveying track, and the first pushing block is used for pushing the material box to move on the conveying track.

In an embodiment, the marking device further comprises a first positioning mechanism, and the first positioning mechanism is aligned with the marking mechanism and used for positioning the material box on the transportation track below the marking mechanism; and/or, the marking device further comprises a second positioning mechanism, the second positioning mechanism is arranged in a contraposition mode with the charging mechanism for receiving materials, and the second positioning mechanism is used for positioning the material box on the conveying track at the charging mechanism for receiving the materials.

In an embodiment, the transportation mechanism further comprises a second pushing block and a third cylinder for driving the second pushing block to move along the transportation track, and the second pushing block is used for pushing the magazine from the first positioning mechanism to the second positioning mechanism.

In an embodiment, the transportation mechanism further comprises a rotating cylinder, the second pushing block is connected with the third cylinder through the rotating cylinder, and the third cylinder can drive the rotating cylinder to move along the transportation track; the rotating shaft of the rotating cylinder extends along the extending direction of the conveying track, and the rotating cylinder can drive the second pushing block to turn over around the rotating shaft of the second pushing block.

In one embodiment, the marking mechanism comprises a CCD camera used for acquiring the marking information of the product and a laser emitting device used for laser marking.

When the marking device marks a product, the product to be marked can be clamped in a plurality of material boxes firstly, the material feeding mechanism for feeding lifts a plurality of material boxes which are stacked mutually through the lifting device, and simultaneously the material feeding mechanism for feeding brings the plurality of material boxes on the lifting device to the conveying track of the conveying mechanism one by one through the first lifting device, so that the compact, orderly and accurate one-by-one feeding of the material boxes is realized. After the material boxes are marked and transferred to the material charging mechanisms for receiving materials, the material charging mechanisms for receiving the materials can lift the material boxes to the lifting devices one by one through the first lifting devices, so that the marking device can automatically stack the material boxes when receiving the materials. Therefore, the marking device can realize compact, orderly and accurate feeding of the material boxes one by one during feeding, and does not need manual feeding one by one. And can pile up a plurality of magazines automatically when receiving the material, do not need follow-up manual work to arrange in order or pile up, very big improvement marking device's machining efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of one embodiment of a marking apparatus of the present invention;

FIG. 2 is a schematic structural view of one embodiment of a charging mechanism of the marking apparatus of the present invention;

FIG. 3 is a schematic structural diagram of an embodiment of a lifting device of the marking apparatus of the present invention;

FIG. 4 is a schematic structural diagram of an embodiment of a first lifting device in the marking apparatus according to the present invention;

FIG. 5 is a schematic structural diagram of an embodiment of a support plate of a first lifting device in the marking apparatus according to the present invention;

FIG. 6 is a schematic structural view of an embodiment of the magazine;

FIG. 7 is a schematic bottom view of the magazine of FIG. 6;

FIG. 8 is a schematic structural diagram of an embodiment of a transport mechanism in a marking device of the present invention.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a marking device.

As shown in fig. 1, the marking device 10 is mainly used for loading, transporting, discharging a material box 90 (or a tool fixture), and marking a product in the material box 90. Of course, when the product is convenient to clamp and position and does not need to clamp the material box 90, the marking device 10 can be directly used for feeding, discharging, transporting, marking and the like of the product, so that stacked feeding and stacked receiving of the product are realized, and the marking efficiency of the marking device 10 is improved.

In an embodiment of the present invention, as shown in FIG. 1, the marking device 10 includes a transport mechanism 20, two loading mechanisms 30, and a marking mechanism 40. Wherein, the transportation mechanism 20 is mainly used for transporting the material box 90 so as to bring the material box 90 from the previous station to the next station. The transport mechanism 20 may thus be a conveyor belt, a transfer cart, or the like. In the embodiment, please refer to fig. 1 and 8, the transportation mechanism 20 at least includes a transportation rail 21 extending horizontally, and when the magazine 90 is placed on the transportation rail 21, the transportation mechanism 20 can push the magazine 90 through the pushing block, thereby realizing transportation of the magazine 90. Or a roller can be arranged on the surface of the conveying track 21, so that the roller drives the material box 90 to move along the conveying track 21, and the material box 90 can be transferred between different stations.

Referring to fig. 1 and 8, the two loading mechanisms 30 are respectively disposed at two ends of the transportation rail 21, and one of the two loading mechanisms is used for feeding and the other is used for receiving materials. Specifically, the charging mechanism 30 for feeding can automatically place the magazine 90 on the transportation rail 21, and the charging mechanism 30 for receiving can automatically collect the magazine 90 on the transportation rail 21. And the marking mechanism 40 is arranged between the two loading mechanisms 30 and above the transportation track 21, and the marking mechanism 40 is used for marking the product. Therefore, when the feeding mechanism 30 for feeding places the magazine 90 on the transport rail 21, the transport mechanism 20 transports the magazine 90 to the lower side of the marking mechanism 40, and the marking mechanism 40 can laser mark the product in the magazine 90. And after marking, the transport mechanism 20 continues to transport the material box 90 to the loading mechanism 30 for receiving the material, so that the material box 90 is automatically collected. Meanwhile, the loading mechanism 30 for feeding continues to place new material boxes 90 on the conveying track 21, and the process is circulated until all the products are marked.

In the embodiment, in order to improve the marking efficiency of the marking device 10, as shown in fig. 2, the loading mechanism 30 includes a lifting device 31 and a first lifting device 32. The lifting device 31 is located above the transportation rail 21 and is used for lifting a plurality of stacked material boxes 90, specifically, for enabling the material boxes 90 to be stacked stably, as shown in fig. 6 and 7, a stacking boss 92 and a stacking hole 93 on the lower surface (bottom surface) of each material box 90 may be provided on the upper surface of each material box 90, and the stacking hole 93 of the previous material box 90 is embedded with the stacking boss 92 of the next material box 90, so as to prevent the material boxes 90 from toppling over in the stacking process. In addition, a gap can be left between two adjacent material boxes 90, so that the lifting device 31 can extend into the space between any two adjacent material boxes 90 and lift the material box 90 on the lifting device 31.

The lifting device 31 can also move telescopically in the horizontal direction to be separated from the magazine 90. The first lifting device 32 is located below the transportation rail 21 and can extend above the transportation rail 21 to support the magazine 90, so as to drive the magazine 90 to perform lifting movement. In the marking apparatus 10 of the present invention, the lifting device 31 is not lifted from the cassette 90 until the first lifting mechanism abuts against and supports the cassette 90. In order to prevent the magazine 90 from moving along with the lifting device 31 when the lifting device 31 extends and retracts in the horizontal direction, a limit stopper 33 may be disposed around the magazine 90 to limit the movement of the magazine 90 in the horizontal direction.

For example, in an embodiment, as shown in fig. 2, the loading mechanism 30 further includes a plurality of limit stoppers 33, the limit stoppers 33 extend along the stacking direction of the magazine 90 and together enclose a limit through slot 331, and the limit through slot 331 is used for limiting the displacement of the magazine 90 in the horizontal direction. Specifically, for example, the magazine 90 is approximately square box-shaped, the four limit stoppers 33 are provided, the four limit stoppers 33 are respectively disposed corresponding to four corners of the magazine 90, each limit stopper 33 is a bent long plate-shaped structure, and an included angle formed by bending is matched with a corner of the magazine 90, so as to enclose the square-cylindrical limit through groove 331, and the plurality of magazines 90 are stacked in the limit through groove 331.

It can be understood that when the plurality of limiting blocking pieces 33 enclose the limiting through grooves 331 and limit the material box 90, the stacked material box 90 can be prevented from falling down, and the material box 90 can be prevented from moving along with the lifting device 31 when the lifting device 31 makes telescopic motion.

Of course, the material box 90 can be limited by the first lifting device 32, so that the material box 90 is prevented from moving when the lifting device 31 does telescopic motion. Specifically, in an embodiment, as shown in fig. 4 and 5, the magazine 90 and the magazine 90 are stacked on each other through the stacking bosses 92 and the stacking holes 93, and meanwhile, the bottom surface (lower surface) of the magazine 90 is further provided with the positioning holes 91, the first lifting device 32 includes a first electric cylinder 321 and a support plate 322 connected to the first electric cylinder 321, and the support plate 322 is provided with positioning protrusions 323 adapted to be inserted into the positioning holes 91. When the first lifting device 32 supports the magazine 90, the positioning protrusion 323 on the supporting plate 322 is inserted into the positioning hole 91 of the magazine 90 at the lowest layer, so that the first lifting device 32 can stably drive the magazine 90 to perform lifting motion, and the magazine 90 is prevented from sliding on the supporting plate 322. But also prevent the material box 90 from moving when the lifting device 31 makes telescopic movement.

The loading mechanism 30 for feeding may stack a plurality of cartridges 90 on the lifting device 31 and lift the cartridges by the lifting device 31. When the feeding is started, the first lifting device 32 is lifted and supports the magazine 90, and then the lifting device 31 is retracted in the horizontal direction, thereby disengaging from lifting the magazine 90. Then the first lifting device 32 drives the plurality of material boxes 90 to descend together until the gap between the lowest material box 90 and the last material box 90 corresponds to the lifting device 31, and at this time, the lifting device 31 extends out in the horizontal direction and lifts all the material boxes 90 except the lowest material box 90. The first lifting device 32 continues to drive the lowest material box 90 to descend until the material box 90 falls on the transportation rail 21 of the transportation mechanism 20, and the material box 90 is taken to the station by the transportation mechanism 20 for processing. The first lifting device 32 is raised again to continue bringing the next magazine 90 onto the transport track 21.

When the loading mechanism 30 for receiving materials receives materials, the first lifting device 32 is lifted and jacks up the material boxes 90 on the conveying track 21 until the material boxes 90 abut against the material boxes 90 stacked on the lifting device 31. The lifting device 31 is then retracted horizontally, releasing the lifting of the magazine 90 above it. The first lifting device 32 continues to lift, and simultaneously drives all the material boxes 90 to lift together until the bottom surface of the lowest material box 90 corresponds to the lifting device 31. Then the lifting device 31 extends again to lift the material box 90, and the first lifting device 32 descends to continuously lift and collect the next marked material box 90.

Therefore, the marking device 10 of the present invention can realize compact, orderly and accurate feeding of the material boxes 90 one by one during feeding without manual feeding one by one. And can pile up a plurality of magazines 90 automatically when receiving the material, do not need follow-up manual work to arrange in order or pile up, very big improvement marking device 10's machining efficiency.

In an embodiment, as shown in fig. 3, the lifting device 31 includes a lifting plate 311, a sliding block 312, a sliding rail 313 and a first cylinder 314, the lifting plate 311 is connected to the first cylinder 314 through the sliding block 312, and the sliding block 312 is slidably mounted on the sliding rail 313. It can be understood that the lifting plate 311 has a smaller thickness, and thus can well extend into between any two adjacent magazines 90 to lift the magazines 90. Simultaneously, the lifting plate 311 is connected with the first cylinder 314 through the sliding block 312 and the sliding rail 313, so that the telescopic motion of the lifting plate 311 is more stable, the sliding block 312 can also increase the strength of the lifting plate 311, and the large bending deformation of the lifting plate 311 when the weight of the material box 90 is too large is avoided.

In addition, in an embodiment, as shown in fig. 3, in order to avoid the situation that the magazine 90 cannot be lifted well by the lifting device 31 due to the excessive weight of the plurality of magazines 90 stacked on top of each other, each of the loading mechanisms 30 is provided with a plurality of lifting devices 31, and the plurality of lifting devices 31 lift the magazine 90 together. For example, two lifting devices 31 may be provided, and the two lifting devices 31 are respectively provided at two opposite sides of the material box 90, so as to balance the material box 90.

In one embodiment, as shown in fig. 2, the charging mechanism 30 further includes a plurality of material sensors 34, and the plurality of material sensors 34 are arranged at intervals along the stacking direction of the cartridges 90 and are configured to sense the cartridges 90. Specifically, a plurality of material sensors 34 may be mounted on the limiting stopper 33 and arranged at intervals from top to bottom, so as to detect the number of the material cartridges 90 in the charging mechanism 30. For example, when the uppermost material sensor 34 senses the material cartridge 90, a signal that the material cartridge 90 has filled the charging mechanism 30 may be output, and when the lowermost material sensor 34 does not sense the material cartridge 90, a signal that the material cartridge 90 in the charging mechanism 30 has not been filled may be output, so that the material cartridge 90 may be timely replenished or the material cartridge 90 may be unloaded.

In one embodiment, as shown in fig. 8, a plurality of rollers 22 for supporting the magazine 90 are disposed on the transportation rail 21, and the plurality of rollers 22 are arranged along the extending direction of the transportation rail 21; the transportation mechanism 20 further comprises a first pushing block 23 and a second air cylinder 24 for driving the first pushing block 23 to move along the transportation track 21, wherein the first pushing block 23 is used for pushing the magazine 90 to move on the transportation track 21.

In this embodiment, it should be noted that the rollers 22 on the transportation rail 21 may be universal wheels, and when there is no external force driving, the rollers 22 do not rotate. Compared with the structure of conveying by a conveyor belt, the roller 22 and the push block are matched with each other, so that the material box 90 can be placed on the conveying track 21 stably and then pushed by the first push block to move. The situation that the material box 90 is not separated from the last material box 90 or the first lifting device 32 which is clamped with the material box and is driven by the conveyor belt to move is avoided.

In order to avoid the overall size of the marking device 10 being too large, the first cylinder 314, the second cylinder 24 and the third cylinder 26 can be rodless cylinders, so that the space occupied by the cylinders during telescopic motion is reduced.

In one embodiment, as shown in fig. 8, the marking device 10 further includes a first positioning mechanism 50, and the first positioning mechanism 50 is aligned with the marking mechanism 40 and is used for positioning the magazine 90 on the transportation rail 21 below the marking mechanism 40. Specifically, in the present embodiment, the first positioning mechanism 50 includes a telescopic stopper 51, and the telescopic stopper 51 is disposed on one side of the transportation rail 21 and extends into the transportation rail 21 to stop the magazine 90 from advancing further when the magazine 90 is pushed below the marking mechanism 40. After the marking mechanism 40 marks the product in the material box 90, the telescopic blocking member 51 retracts, so that the material box 90 can be continuously pushed to the charging mechanism 30 for receiving the material.

In other embodiments, as shown in fig. 8, in order to prevent the magazine 90 from moving when the marking mechanism 40 marks the product in the magazine 90, the positioning mechanism further includes a second lifting device 52, and the second lifting device 52 is disposed below the transportation rail 21 and corresponding to the marking mechanism 40. When the magazine 90 is positioned on the transport rail 21 by the telescopic stopper 51, the second lifting device 52 is lifted and ejects the magazine 90, and then the marking mechanism 40 marks the product in the magazine 90 again. The second lifting device 52 may also comprise a second electric cylinder and a support plate 322, the support plate 322 being provided with positioning protrusions 323 to prevent the magazine 90 from being displaced on the support plate 322.

Of course, the marking device 10 may further include a dust extraction mechanism, and the dust extraction mechanism is disposed corresponding to the marking mechanism 40, so that the dust generated during marking can be extracted, and the environmental cleanliness of the device can be ensured.

In one embodiment, as shown in fig. 8, the marking device 10 further includes a second positioning mechanism 60, and the second positioning mechanism 60 is aligned with the loading mechanism 30 for receiving material and is used for positioning the magazine 90 on the transportation rail 21 at the loading mechanism 30 for receiving material. The first positioning mechanism 50 may be a positioning block fixedly installed at one side of the transportation rail 21 and at least partially extending into the transportation rail 21 to prevent the magazine 90 from further advancing.

In an embodiment, as shown in fig. 8, in order to further improve the marking efficiency of the marking device 10, the transporting mechanism 20 further includes a second pushing block 25 and a third cylinder 26 for driving the second pushing block 25 to move along the transporting track 21, wherein the second pushing block 25 is used for pushing the magazine 90 from the first positioning mechanism 50 to the second positioning mechanism 60. It can be understood that, due to the second pushing block 25, when the first pushing block 23 pushes the material box 90 to the first positioning mechanism 50, the material box can directly return to the charging mechanism 30 for feeding to continue to push the next material box 90 without waiting for the marking of the product on the material box 90 to be finished. After the marking of the material box 90 at the marking mechanism 40 is finished, the material box 90 can be continuously pushed to the loading mechanism 30 for receiving material by the second pushing block 25.

Therefore, compared with a transportation mode that the material box 90 is pushed from the loading mechanism 30 to another loading mechanism 30 and then returns to the starting point through only one push block, the first push block and the second push block are matched with each other in the embodiment, the waiting time of each push block is reduced, the operation of the material box 90 is more compact, and the efficiency of the marking device 10 is greatly improved.

In addition, in order to avoid mutual interference of the first push block and the second push block, or in order to enable the action between the first push block and the second push block to be more smoothly matched, the first push block and the second push block can be respectively arranged on two opposite sides of the conveying track 21, so that the strokes of the first push block and the second push block can have opposite parallel sections, mutual interference during handover is avoided, and the action connection is smoother.

Taking the direction of the first positioning mechanism 50 pointing to the second positioning mechanism 60 as the forward direction, when the second pushing block moves backward from the second positioning mechanism 60 to prepare to push the magazine 90, the mechanism part for pushing the magazine 90 needs to avoid the magazine 90 and bypass the rear of the magazine 90. Therefore, in an embodiment, as shown in fig. 8, the transportation mechanism 20 further includes a rotating cylinder 27, the second pushing block 25 is connected to the third cylinder 26 through the rotating cylinder 27, and the third cylinder 26 can drive the rotating cylinder 27 to move along the transportation rail 21; the rotation axis of the rotation cylinder 27 extends along the extending direction of the transportation rail 21, and the rotation cylinder 27 can drive the second pushing block 25 to turn around the rotation axis thereof. And then avoiding the material box 90, and turning back through the rotary cylinder 27 after the second pushing block continuously moves to the rear of the material box 90, so that the material box 90 can be pushed to the second positioning mechanism 60 from the first positioning mechanism 50.

In one embodiment, as shown in fig. 1, the marking mechanism 40 includes a CCD camera 70 for acquiring product marking information, and a laser emitting device 80 for laser marking. Specifically, at the charging mechanism 30 for feeding, when a plurality of cartridges 90 are stacked on the lifting device 31, the lowermost cartridge 90 may be made to be loaded with a signboard carrying product information to be marked, marking information, and the like. After the CCD camera 70 shoots the signboard and obtains corresponding product information, marking information, and the like, the products in the magazine 90 are marked one by the laser device.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A marking apparatus, comprising:

a transport mechanism comprising a horizontally extending transport track;

the two charging mechanisms are respectively arranged at two ends of the conveying track, one charging mechanism is used for feeding materials, the other charging mechanism is used for receiving materials, and the charging mechanisms comprise lifting devices and first lifting devices;

the lifting device is positioned above the conveying track and used for lifting a plurality of stacked material boxes, and the lifting device can also do telescopic motion along the horizontal direction to be separated from the material boxes;

the first lifting device is positioned below the conveying track and can extend to the upper part of the conveying track to support the material box so as to drive the material box to do lifting motion; and the number of the first and second groups,

and the marking mechanism is arranged between the two loading mechanisms and positioned above the transportation track, and the marking mechanism is used for marking the product.

2. The marking device as claimed in claim 1, wherein the lifting device comprises a lifting plate, a sliding block, a sliding rail and a first cylinder, the lifting plate is connected with the first cylinder through the sliding block, and the sliding block is slidably mounted on the sliding rail;

and/or each charging mechanism is provided with a plurality of lifting devices which lift the material box together.

3. The marking device as claimed in claim 2, wherein a positioning hole is formed in the bottom surface of the magazine, the first lifting device comprises a first electric cylinder and a supporting plate connected to the first electric cylinder, and a positioning protrusion which is matched and inserted into the positioning hole is formed in the supporting plate.

4. The marking device of claim 3, wherein the loading mechanism further comprises a plurality of limiting stoppers, the limiting stoppers extending along the stacking direction of the magazine and collectively enclosing a limiting through groove for limiting the displacement of the magazine in the horizontal direction.

5. The marking apparatus of claim 4, wherein the charging mechanism further includes a plurality of material sensors spaced along the stacking direction of the cassettes and configured to sense the cassettes.

6. The marking device as claimed in any one of claims 1 to 5, wherein a plurality of rollers for supporting the magazine are arranged on the transportation rail, and the rollers are arranged along the extension direction of the transportation rail;

the conveying mechanism further comprises a first pushing block and a second air cylinder for driving the first pushing block to move along the conveying track, and the first pushing block is used for pushing the material box to move on the conveying track.

7. The marking device as claimed in claim 6, further comprising a first positioning mechanism, wherein the first positioning mechanism is aligned with the marking mechanism and is used for positioning the magazine on the transportation rail below the marking mechanism;

and/or, the marking device further comprises a second positioning mechanism, the second positioning mechanism is arranged in a contraposition mode with the charging mechanism for receiving materials, and the second positioning mechanism is used for positioning the material box on the conveying track at the charging mechanism for receiving the materials.

8. The marking device as claimed in claim 7, wherein the transporting mechanism further comprises a second pushing block and a third cylinder for driving the second pushing block to move along the transporting track, and the second pushing block is used for pushing the magazine from the first positioning mechanism to the second positioning mechanism.

9. The marking device as claimed in claim 8, wherein the transportation mechanism further comprises a rotary cylinder, the second pushing block is connected with the third cylinder through the rotary cylinder, and the third cylinder can drive the rotary cylinder to move along the transportation track;

the rotating shaft of the rotating cylinder extends along the extending direction of the conveying track, and the rotating cylinder can drive the second pushing block to turn over around the rotating shaft of the second pushing block.

10. Marking device according to any one of claims 1 to 5, wherein the marking mechanism comprises a CCD camera for acquiring marking information of the product, and a laser emitting device for laser marking.