CN118404205A - Marking device - Google Patents

Abstract

The invention discloses marking equipment which comprises a conveying assembly, a positioning assembly and a marking assembly, wherein the conveying assembly is provided with a conveying channel, the conveying channel is provided with a marking position, the conveying channel is used for conveying tires, the positioning assembly is arranged at the marking position, the positioning assembly comprises a first driving piece and a clamping device, the clamping device is arranged at the output end of the first driving piece, the clamping device encloses to form a clamping space, the clamping space is communicated with the conveying channel, the clamping space is regulated by the first driving assembly to clamp or release the tires, and the marking assembly is arranged corresponding to the marking position. The technical scheme of the invention aims at limiting and fixing the tire and adjusting the position before marking, and improving the stability of limiting and fixing the tire and the speed of adjusting the position.

Description

Marking device

Technical Field

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

Background

Currently, tires on the market are often marked by laser marking, and when laser marking is performed, the tires are often transported and marked by a pipeline.

However, before the tire is transported to the marking position from the transportation line, the tire is required to be subjected to limit fixing and position adjustment, so that the marking assembly is used for marking the position to be marked of the tire, and the tire is positioned and adjusted in a mode of a baffle or a manipulator at present, so that the limit fixing effect of the tire is poor, the tire is easy to slip, the positioning speed is low, and the marking efficiency is influenced.

Disclosure of Invention

The invention mainly aims to provide marking equipment, which aims to limit and fix and adjust positions before marking a tire and improve the stability of limit and fix the tire and the speed of position adjustment.

In order to achieve the above object, the present invention provides a marking apparatus for tire marking, the marking apparatus comprising:

The conveying assembly is provided with a conveying channel, the conveying channel is provided with marking positions, and the conveying channel is used for conveying tires;

the positioning assembly is arranged at the marking position and comprises a first driving piece and a clamping device, the clamping device is arranged at the output end of the first driving piece and surrounds to form a clamping space, the clamping space is communicated with the conveying channel, and the first driving piece drives the clamping device to clamp or release the tire and adjust the clamping space; and

And the marking assembly is arranged corresponding to the marking position.

In an embodiment, the first driving member has at least two first output ends disposed opposite to each other, and the clamping device includes at least two clamping members, each of which is disposed at a corresponding one of the first output ends to enclose and form the clamping space.

In an embodiment, the clamping member includes a connecting plate, at least two positioning columns and a movable roller, the connecting plate is disposed at the first output end, the positioning columns are disposed at intervals on the connecting plate, and the movable roller is rotatably connected to the positioning columns.

In an embodiment, the positioning assembly further comprises a guide rail, the guide rail is parallel to the first driving piece, one end of the connecting plate is connected to the first output end, and the other end of the connecting plate is slidably arranged on the guide rail.

In an embodiment, the positioning assembly further comprises a transfer device, the conveying channel comprises a feeding channel and a discharging channel, a marking position is formed between the feeding channel and the discharging channel, the transfer device is provided with a transfer channel communicated with the feeding channel and the discharging channel and a gap communicated with the transfer channel, and part of the clamping device penetrates through the gap and stretches into the transfer channel to form the clamping space.

In an embodiment, the transfer device includes a support, a second driving member and a plurality of groups of wheel sets, the support is disposed at the marking position, the second driving member is disposed at the support, the plurality of groups of wheel sets are disposed at intervals at the output end of the second driving member, and form the transfer channel, and adjacent wheel sets are formed with the gaps.

In an embodiment, the wheel set includes a connecting rod and a plurality of mecanum wheels, the connecting rod is connected to the output end of the second driving member, and the plurality of mecanum wheels are sleeved on the connecting rod at intervals.

In an embodiment, the second driving member includes a plurality of wheel sets, each of which is correspondingly disposed on the second driving member, and each of the wheel sets is connected to an output end of the second driving member.

In an embodiment, the conveying assembly comprises a feeding device and a discharging device, the feeding device is provided with a feeding channel and a feeding port communicated with the feeding channel, the feeding port is provided with a guiding chute, and the discharging device is provided with a discharging channel and a discharging port communicated with the discharging channel.

In an embodiment, the marking assembly is provided with a position sensor, and the position sensor is arranged at the marking position corresponding to the positioning assembly.

According to the technical scheme, the tire to be marked is conveyed to the marking position through the conveying channel in the conveying assembly, the clamping space is formed by the clamping device in the positioning assembly to limit the tire, the clamping device is driven by the first driving piece in the positioning assembly to clamp the tire, after the tire is clamped by the clamping device, the position of the clamping space can be adjusted by the first driving piece in a mode of driving the clamping device, so that the position of the tire is adjusted, after the tire is located at the marking preset position, the tire is marked by the marking assembly, after marking is completed, the tire is loosened by the clamping device, and the tire leaves the marking position through the conveying channel. The tire can be limited and fixed in the clamping space through the cooperation of the first driving piece and the clamping device, the stability of tire limiting and fixing is improved, after the tire is limited and fixed, the first driving piece continuously drives the clamping device to adjust the position of the clamping space so as to adjust the tire to any position, and therefore the efficiency of tire position adjustment is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a marking apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view of a conveying assembly and a positioning assembly according to an embodiment of the present invention;

FIG. 3 is a schematic view of a positioning assembly according to an embodiment of the invention;

FIG. 4 is a schematic view of a transport assembly and positioning assembly from another perspective in accordance with one embodiment of the present invention;

FIG. 5 is a schematic view of a transport assembly and positioning assembly removal transfer device according to an embodiment of the present invention.

Reference numerals illustrate:

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

Referring to fig. 1 to 5, the present invention proposes a marking apparatus 100 for tire marking, where the marking apparatus 100 includes a conveying component 1, a positioning component 2 and a marking component 3, the conveying component 1 is provided with a conveying channel 11, the conveying channel 11 has a marking position 111, the conveying channel 11 is used for conveying a tire, the positioning component 2 is disposed at the marking position 111, the positioning component 2 includes a first driving member 21 and a clamping device 22, the clamping device 22 is disposed at an output end of the first driving member 21, the clamping device 22 encloses to form a clamping space 221, the clamping space 221 is communicated with the conveying channel 11, the first driving member 21 drives the clamping device 22 to clamp or release the tire, and adjusts a position of the clamping space 221, and the marking component 3 is disposed corresponding to the marking position 111.

In this embodiment, as shown in fig. 1,2 and5, the marking apparatus 100 includes a conveying component 1, a positioning component 2 and a marking component 3, where the conveying component 1 is used to convey a tire, when the tire is conveyed to a marking position 111 through a conveying channel 11 of the conveying component 1, the positioning component 2 positions the tire before marking the tire at the marking position 111, the positioning component 2 adjusts the position of the tire through a first driving member 21 and a clamping device 22 connected to an output end of the first driving member 21, and when the tire is located in a clamping space 221 formed by encircling the clamping device 22, the first driving member drives the clamping device 22 according to a preset stroke to adjust the clamping space 221, so that the clamping device 22 abuts against the tire, and the tire is fixed in the clamping space 221 in a limited manner, and at this time, the tire can move along with the clamping device 22, so as to adjust the position of the tire located at the marking position 111 corresponds to the marking component 3, and achieve rapid adjustment and positioning of the tire position.

In practical implementation, the first driving member 21 may be an electric cylinder or an air cylinder, and the arrangement direction of the first driving member 21 is perpendicular to the conveying direction of the conveying channel 11, so that the tire can be conveyed to the marking position 111 by the conveying assembly 1 without being blocked by the first driving member 21 and the clamping device 22, the marking assembly 3 is arranged above the positioning assembly 2, and when the tire is positioned at the marking position 111 by the positioning assembly 2, the marking assembly 3 marks the tire.

In an embodiment, the first driving member 21 has at least two first output ends disposed opposite to each other, and the clamping device 22 includes at least two clamping members 222, and each clamping member 222 is disposed at a first output end to form a clamping space 221.

In this embodiment, as shown in fig. 2, 3 and 5, at least two clamping members 222 are respectively disposed at least two first output ends of the first driving member 21, where the at least two first output ends are disposed opposite to each other, so that the clamping members 222 can be close to or far away from each other, and adjustment of a clamping space 221 formed by encircling the clamping members 222 is achieved, when the tire is located in the conveying channel 11 and is not conveyed to the marking position 111, the clamping members 222 are in a state of being far away from each other, so that the tire enters the clamping space 221 after conveyed to the marking position 111, and when the tire enters the clamping space 221, the first driving member 21 drives the first output ends to be close to each other, so that the clamping space 221 is reduced, and the tire is abutted against the clamping member 222, so that the positioning assembly 2 can drive the tire through the clamping member 222 to adjust the position of the tire to be marked 111, so that the position of the tire to be marked is aligned to the marking assembly 3.

In practical implementation, the first driving member 21 may include a plurality of first output ends, where the plurality of first output ends are disposed opposite to each other, each first output end is correspondingly connected with a clamping member 222, and the strokes of each output end may be relatively independent and not affected by each other, and when the tire is located in the clamping space 221, and the clamping space 221 is contracted, each clamping member 222 abuts against the tire, so as to improve the accuracy of adjusting the tire position by the clamping member 222.

In an embodiment, the clamping member 222 includes a connecting plate 2221, at least two positioning columns 2222 and a movable roller 2223, the connecting plate 2221 is disposed at the first output end, the positioning columns 2222 are disposed at intervals on the connecting plate 2221, and the movable roller 2223 is rotatably connected to the positioning columns 2222.

In this embodiment, as shown in fig. 3 and 5, the positioning column 2222 and the movable roller 2223 of the clamping member 222 are disposed at the first output end of the first driving member 21 through the connection plate 2221, the positioning column 2222 is configured such that the clamping member 222 can enclose to form the clamping space 221, when the first driving member 21 drives the first output end to move relatively, the positioning column 2222 moves along with the connection plate 2221 connected to the first output end to clamp or loosen the tire to be processed in the clamping space 221, the positioning columns 2222 are disposed at intervals on the connection plate 2221, when the clamping space 221 is reduced, the tire is limited between at least two positioning columns 2222 of the clamping member 222, and each positioning column 2222 applies pressure in different directions to the tire, so that the stability of limiting and fixing the tire is greatly improved; the movable roller 2223 is rotationally arranged on the positioning columns 2222, when the clamping space 221 is reduced and the tire enters between the two positioning columns 2222, the movable roller 2223 can rotate along with the movement of the tire, so that the friction force of the tire when the tire moves between the pressing direction of the positioning columns 2222 is reduced, the tire is prevented from being worn when the tire is pressed and positioned by the positioning columns 2222, and the appearance quality of the tire is influenced.

In practical implementation, the connecting plate 2221 can be provided with a threaded hole, the positioning column 2222 can be provided with a threaded section, and through the cooperation of threaded hole and threaded section, so that the detachable connection of the positioning column 2222 and the connecting plate 2221 can be realized, a plurality of threaded holes can be arranged on the connecting plate 2221, so that the positioning column 2222 can adjust the distance according to the model of the tire to be processed, the tire can be better limited in the clamping space 221, the movable roller 2223 can be provided with a cavity, the positioning column 2222 is arranged in the cavity in a penetrating way, and the rotary connection of the movable roller 2223 and the positioning column 2222 is realized.

In practical implementation, the connecting plate 2221 can be provided with a limit groove, the positioning column 2222 is slidably arranged in the limit groove and is connected with one end of the limit groove, which is far away from the clamping space 221, through an elastic piece, so that the movable roller 2223 can be better attached to the tire when clamping the tire, and the tire is better limited.

In an embodiment, the positioning assembly 2 further includes a guide rail 23, where the guide rail 23 is disposed parallel to the first driving element 21, one end of the connecting plate 2221 is connected to the first output end, and the other end of the connecting plate 2221 is slidably disposed on the guide rail 23.

In this embodiment, as shown in fig. 3 and 5, the positioning assembly 2 further includes a guide rail 23, one end of the connecting plate 2221 is connected with the first output end of the first driving member 21, the other end of the connecting plate 2221 is slidably connected with the guide rail 23, and the clamping member 222 is driven by the first driving member 21 and slides on the guide rail 23, so as to reduce the load of the first driving member 21, improve the stability of the movement of the clamping member 222, and ensure the speed of adjusting the tire position.

In practical implementation, the guide rail 23 and the first driving element 21 are arranged in parallel, the guide rail 23 may be provided with a guide groove, the connecting plate 2221 may be provided with a guide wheel corresponding to the guide groove, and the guide wheel is limited in the guide groove and rolls in the guide groove, so as to realize sliding connection between the connecting plate 2221 and the guide rail 23.

In an embodiment, the positioning assembly 2 further includes a transferring device 24, the conveying channel 11 includes a feeding channel 123 and a discharging channel 131, a marking position 111 is formed between the feeding channel 123 and the discharging channel 131, the transferring device 24 is provided with a transferring channel 241 communicating with the feeding channel 123 and the discharging channel 131 and a gap 242 communicating with the transferring channel 241, and a part of the clamping device 22 passes through the gap 242 and extends into the transferring channel 241 to form a clamping space 221.

In this embodiment, as shown in fig. 4 and 5, the positioning assembly 2 further includes a transfer device 24, the transfer device 24 is provided with a transfer channel 241, the transfer device 24 provides power for the tire, so that the tire enters the marking position 111 from the feeding channel 123 through the transfer channel 241, and is continuously transported from the marking position 111 to the discharging channel 131, and part of the clamping device 22 extends into the transfer channel 241 through a gap 242 communicated with the transfer channel 241, so that the clamping space 221 is formed to adjust the position of the tire in the transfer channel 241 while the movement of the tire in the transfer channel 241 by the transfer device 24 is not affected.

In actual implementation, the transportation direction of the transfer channel 241 to the tire is perpendicular to the travel of the clamping space 221, so that the adjustment of the plane position of the tire is realized, and the position 111 to be marked of the tire is ensured to be aligned with the marking assembly 3; the clamping device 22 is located in the middle of the transfer channel 241, the positioning column 2222 and the movable roller 2223 in the clamping device 22 pass through the gap 242 to form the clamping space 221, and the positioning column 2222 and the movable roller 2223 move along the gap 242 to clamp the tire or drive the tire to adjust the position or release the tire.

In an embodiment, the transferring device 24 includes a support 243, a second driving member 244 and a plurality of sets of wheel sets 245, the support 243 is disposed at the marking location 111, the second driving member 244 is disposed at the support 243, the plurality of sets of wheel sets 245 are disposed at intervals at the output end of the second driving member 244, and form a transferring channel 241, and adjacent sets of wheel sets 245 are formed with gaps 242.

In this embodiment, as shown in fig. 4 and 5, the bracket 243 is disposed at the marking position 111, the plurality of sets of wheel sets 245 are disposed on the bracket 243 through the second driving member 244 and form the transferring channel 241, the plurality of sets of wheel sets 245 are all disposed at the output end of the second driving member 244, the second driving member 244 drives the plurality of sets of wheel sets 245 to rotate so that the tire located in the transferring channel 241 can move along the transferring channel 241, and meanwhile, a gap 242 is formed between adjacent sets of wheel sets 245 for the part of the clamping device 22 to pass through and form the clamping space 221.

In practical implementation, the second driving member 244 can drive the multiple groups of wheel groups 245 to rotate through gears or chains, and the distance between the wheel groups 245 can be adjusted to change the size of the formed gap 242, so that the size of the gap 242 can be adjusted according to tires to be marked of different types, the clamping device 22 can be conveniently used for adjusting the size of the formed clamping space 221, and the positioning requirements of tires of different types can be met.

In an embodiment, the wheel set 245 includes a connecting rod 2451 and a plurality of mecanum wheels 2452, the connecting rod 2451 is connected to the output end of the second driving member 244, and the plurality of mecanum wheels 2452 are sleeved on the connecting rod 2451 at intervals.

In this embodiment, as shown in fig. 3 and 4, the wheel set 245 is formed by a connecting rod 2451 and a mecanum wheel 2452, a plurality of mecanum wheels 2452 are sleeved on the connecting rod 2451 at intervals, and are connected to the output end of the second driving member 244 through the connecting rod 2451, the second driving member 244 drives the connecting rod 2451 to rotate so as to drive the mecanum wheel 2452 sleeved on the connecting rod 2451 to rotate, so that the tire located in the transfer channel 241 can follow the mecanum wheel 2452, and meanwhile, because the rim of the mecanum wheel 2452 is provided with a roller shaft arranged obliquely, when the tire is located on the transfer channel 241 formed by the mecanum wheel 2452, the roller shaft on the mecanum wheel 2452 can rotate along with the movement of the tire when the tire is clamped or moved by the positioning post 2222 of the clamping device 22, thereby reducing the friction force of the tire by the transfer device 24, and avoiding the tire from being worn by the excessive friction force of the tire by the transfer device 24 when the clamping device 22 positions the tire.

In practical implementation, the direction of the driving force of the tire receiving the mecanum wheel 2452 can be decomposed into a transfer direction of the transfer channel 241 and a direction perpendicular to the transfer direction, the roller shafts of the mecanum wheel 2452 can be inclined in the same direction, and a mirror-symmetrical mecanum wheel 2452 can be arranged between the mecanum wheels 2452 with the roller shafts inclined in the same direction, so that when the wheel set 245 rotates in the same direction, the component force of the tire receiving the mecanum wheel 2452 perpendicular to the transfer direction of the transfer channel 241 is counteracted, and the tire moves directly along the transfer direction of the transfer channel 241 without deviation.

In one embodiment, the second driving member 244 includes a plurality of wheel sets 245, each of which corresponds to a second driving member 244, and each wheel set 245 is connected to an output end of the second driving member 244.

In this embodiment, the second driving member 244 may include a plurality of sets of wheels 245, so that each set of wheels 245 is correspondingly disposed at an output end of the second driving member 244, each set of wheels 245 is independently operated, so that the rotation direction of each set of wheels 2452 is controllable, when the rollers of the wheels 2452 in the sets of wheels 245 are all inclined in the same direction, the plurality of sets of wheels 245 are two sets of wheels 245 along the transfer direction of the transfer channel 241, when the tire enters the transfer channel 241, the two sets of wheels 245 are controllable to rotate in the same direction, so as to adjust the position of the tire along the transfer direction in the transfer channel 241, when the position of the tire is adjusted to the clamping space 221, the clamping device 22 can perform abutting limiting on the tire, and the tire is simultaneously positioned in the two sets of wheels 245, and when the two sets of wheels 245 are adjusted to rotate in opposite directions at the same speed, the rotation of the rollers of the wheels 2452 can rotate the tire at the marking position 111, so that the position 111 of the tire is ready to mark the tire.

In practice, the clamping device 22 is located in the middle of the wheel set 245, and the two-part wheel set 245 covered by the tire is symmetrical when the tire is located in the clamping space 221 and clamped by the clamping device 22.

In an embodiment, the conveying assembly 1 includes a feeding device 12 and a discharging device 13, the feeding device 12 is provided with a feeding channel 123 and a feeding port 121 communicated with the feeding channel 123, the feeding port 121 is formed with a guiding chute 122, and the discharging device 13 is provided with a discharging channel 131 and a discharging port communicated with the discharging channel 131.

In this embodiment, as shown in fig. 2, the feeding device 12 is provided with a feeding channel 123 for feeding and conveying the tire, the discharging device 13 is provided with a discharging channel 131 for feeding and conveying the tire, and meanwhile, the feeding channel 123 is provided with a guiding chute 122 at the feeding port 121, and the guiding chute 122 is inclined from the feeding channel 123 to the ground so as to transfer the tire to the feeding channel 123, thereby reducing the feeding burden of workers.

In practical implementation, the feeding device 12 and the discharging device 13 are both provided with power components, so that automatic transportation of tires on the conveying channel 11 is realized.

In one embodiment, the marking assembly 3 is provided with a position sensor, and the position sensor is provided at the marking position 111 corresponding to the positioning assembly 2.

In this embodiment, the marking assembly 3 is provided with a position sensor for detecting whether the tire to be processed is in place, and if the tire to be processed is already in place by the positioning assembly 2, the position sensor senses a tire in place signal, and the marking assembly 3 starts marking the position 111 to be marked of the tire.

In practical implementation, the position sensor may be an infrared sensor or a visual sensor, which is not specifically limited herein.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.

Claims (10)

1.A marking apparatus for tire marking, the marking apparatus comprising:

The conveying assembly is provided with a conveying channel, the conveying channel is provided with marking positions, and the conveying channel is used for conveying tires;

The positioning assembly is arranged at the marking position and comprises a first driving piece and a clamping device, the clamping device is arranged at the output end of the first driving piece, the clamping device is enclosed to form a clamping space, the clamping space is communicated with the conveying channel, and the first driving piece drives the clamping device to clamp or release the tire and adjust the position of the clamping space; and

And the marking assembly is arranged corresponding to the marking position.

2. The marking apparatus as claimed in claim 1, wherein the first driving member has at least two first output ends disposed opposite to each other, and the clamping device includes at least two clamping members, each of which is disposed at one of the first output ends, so as to form the clamping space.

3. The marking apparatus of claim 2, wherein the clamping member includes a connecting plate, at least two positioning posts and a movable roller, the connecting plate is disposed at the first output end, the positioning posts are disposed at intervals on the connecting plate, and the movable roller is rotatably connected to the positioning posts.

4. A marking apparatus as claimed in claim 3 wherein the positioning assembly further comprises a guide rail arranged parallel to the first drive member, one end of the connecting plate being connected to the first output end, the other end of the connecting plate being slidably disposed on the guide rail.

5. The marking apparatus of claim 1, wherein the positioning assembly further comprises a transfer device, the transport channel comprises a loading channel and a unloading channel, the marking station is formed between the loading channel and the unloading channel, the transfer device is provided with a transfer channel communicated with the loading channel and the unloading channel and a gap communicated with the transfer channel, and a part of the clamping device penetrates through the gap and stretches into the transfer channel to form the clamping space.

6. The marking apparatus of claim 5, wherein the transfer device includes a frame, a second driving member and a plurality of sets of wheel sets, the frame being disposed at the marking location, the second driving member being disposed at the frame, the plurality of sets of wheel sets being disposed at intervals at an output end of the second driving member and forming the transfer channel, adjacent sets of wheel sets being formed with the gap.

7. The marking apparatus of claim 6, wherein the wheel set includes a link and a plurality of mecanum wheels, the link being connected to the output end of the second driving member, the plurality of mecanum wheels being spaced apart from the link.

8. The marking apparatus of claim 7, wherein said second driving member includes a plurality of said wheel sets, each of said wheel sets being correspondingly disposed with one of said second driving members, each of said wheel sets being coupled to an output of one of said second driving members.

9. The marking apparatus of claim 5, wherein the conveying assembly comprises a loading device and a unloading device, the loading device is provided with the loading channel and a loading opening communicated with the loading channel, the loading opening is provided with a guiding chute, and the unloading device is provided with the unloading channel and a unloading opening communicated with the unloading channel.

10. Marking apparatus as claimed in any one of claims 1 to 9, wherein the marking assembly is provided with a position sensor provided in the marking station in correspondence with the positioning assembly.