Laser engraving roller

Abstract

The utility model relates to the technical field of plate roller processing equipment discloses a laser plate roller, including support frame, the laser processing head is slidably connected to support frame on the transverse, support frame is slidably connected with two self -centering fixing mechanism of opposite arrangement on the sliding direction of laser processing head, and the transverse drive mechanism is connected between self -centering fixing mechanism and support frame, the intermediate seat is movably connected to support frame on the transverse, and the sliding direction of laser processing head is perpendicular to the activity direction of intermediate seat, and the support seat is movably connected to intermediate seat on the vertical, and the vertical elastic piece is connected between support seat and intermediate seat, and the top surface of support seat is equipped with the placing groove that cooperates with plate roller. The utility model patent solves the problem that the precision is low and the stability is poor when installing and fixing plate roller in the prior art.

Description

Technical Field

[0001] This utility model relates to the technical field of printing roller processing equipment, specifically to a laser engraving roller. Background Technology

[0002] A printing roller, also known as a steel roller, is a cylinder component used in printing presses. It plays a crucial role in the printing process. When the printing film material passes through the printing roller, the roller rolls and carries out the ink, thus printing the corresponding pattern onto the material. Currently, printing rollers are processed in laser printing roller engraving machines. During laser engraving, the printing roller is rotatably connected to a support frame, and a laser processing head is laterally slidably connected to the support frame. During processing, the laser processing head slides along the length of the printing roller, and the printing roller rotates relative to the support frame, causing the laser processing head to act on the printing roller according to the trajectory of the printing plate pattern to complete the processing.

[0003] Although printing rollers in existing technologies can be installed and processed, during the processing, both ends of the printing roller need to be connected to support frames. Due to the diverse forms of printing rollers, with different models having varying lengths and diameters, the current method of manually fixing the ends of the printing roller for ease of installation and positioning typically involves using opposing plate-like clamps to laterally press and fix the printing roller, with the plate structure designed to be adjustable to fix printing rollers of different diameters and lengths. While this clamping method can fix the printing roller, in actual production, due to the rotation of the printing roller and mechanical vibrations during processing, the ends of the printing roller are prone to shifting relative to the clamps or even loosening and falling off, affecting the accuracy of printing roller processing. To prevent the printing roller from loosening or shifting from the clamps, some processing equipment fixes anti-slip pads to the clamps. These anti-slip pads can reduce the risk of shifting or loosening to some extent. However, the anti-slip pads themselves have a certain degree of deformation under pressure. When the ends of the printing roller are pressed and fixed against the anti-slip pads, unevenness or bending at the front and back sides can easily occur, affecting the processing quality of the printing roller. Therefore, it is necessary to improve the structure used for mounting and fixing the printing roller in the existing laser engraving equipment for printing rollers in order to improve the accuracy and stability of the mounting and fixing of the printing rollers. Utility Model Content

[0004] The present invention aims to provide a laser engraving roller to solve the problems of low accuracy and poor stability when installing and fixing the printing roller in the prior art.

[0005] To solve the above problems, the present invention adopts the following technical solution: a laser engraving roller, including a support frame, a laser processing head slidably connected to the support frame, two opposing self-centering fixing mechanisms slidably connected to the support frame along the sliding direction of the laser processing head, and a transverse driving mechanism connected between the self-centering fixing mechanisms and the support frame; a middle seat movably connected to the support frame, the movement direction of the middle seat being perpendicular to the sliding direction of the laser processing head, a support base movably connected to the middle seat vertically, a vertical elastic element connected between the support base and the middle seat, and a placement groove for cooperating with the engraving roller provided on the top surface of the support base.

[0006] The principle of this application is based on: In this application, when it is necessary to install and fix the printing roller, the printing roller is simply placed manually in the placement groove on the top surface of the support base. The two ends of the printing roller extend to both sides of the support base, and the printing roller is located between two self-centering fixing mechanisms. The two ends of the printing roller are respectively located at the positions of the two self-centering fixing mechanisms. Then, the two self-centering fixing mechanisms are driven to move closer to each other using a transverse drive mechanism, so that the self-centering fixing mechanisms contact the ends of the printing roller. The self-centering fixing mechanisms are used to automatically center the printing roller. The two ends of the printing roller are respectively fixed to the two self-centering fixing mechanisms. During the fixing process, even if the printing roller is tilted or deviated in the vertical direction or the front-to-back direction, the self-centering fixing mechanisms can automatically correct the position of the printing roller, so that the printing roller is fixed so that the two ends are at the same horizontal height, and the axial direction of the printing roller is the same as the sliding direction of the laser processing head.

[0007] In addition, the intermediate seat and the support frame in this solution are laterally movable, and the support seat and the intermediate seat are vertically movable. Furthermore, a vertically arranged elastic element connects the support seat and the intermediate seat. Therefore, when the printing roller is manually placed in the placement slot of the support seat, the printing roller can follow the support seat in the vertical direction and also move in the front-back direction. This ensures that even if there is a certain deviation between the position of the printing roller and the final fixed position when the self-centering fixing unit fixes the printing roller, the position of the printing roller can be adjusted and changed when the printing roller is subjected to the fixing force of the self-centering fixing mechanism, thus ensuring the accuracy of the printing roller installation and fixing.

[0008] The beneficial effects of this utility model are as follows: 1. The printing roller can be installed and fixed more precisely: Compared to the existing technology where anti-slip pads are used to press and fix the printing roller, the two ends of the printing roller may be at different heights, or the axis of the printing roller may form an angle with the sliding direction of the laser processing head. This results in positional deviation after the printing roller is installed and fixed, affecting the processing quality of the printing roller. In this application, two self-centering fixing mechanisms are used to fix the two ends of the printing roller respectively. The self-centering fixing mechanisms can automatically center the printing roller, ensuring the accuracy of the printing roller installation and fixing.

[0009] 2. Capable of installing and fixing printing rollers of different diameters and lengths: In this application, since the two self-centering fixing mechanisms slide along the support frame, the distance between the two self-centering fixing mechanisms can be adjusted, thereby facilitating the installation and fixing of printing rollers of different lengths. Moreover, the self-centering fixing mechanism fixes the printing roller by radial positioning, so in the actual fixing process, printing rollers of different diameters can be centered and fixed.

[0010] 3. Convenient manual handling of the printing roller: This application includes an intermediate seat and a support seat. The top of the support seat has a placement groove, which allows for easy manual handling of the printing roller, making the roller placement process more convenient and stable. Simultaneously, the intermediate seat and support frame are horizontally movable, and the support seat and intermediate seat are vertically movable. When the printing roller is manually placed on the placement groove of the support seat, the two self-centering fixing mechanisms move closer together to fix the roller. The roller's position is adjustable in both the front-to-back and vertical directions. During the centering and fixing process by the self-centering fixing mechanisms, the roller is not only stable in the vertical direction and will not fall, but its position is also automatically adjusted and precisely fixed.

[0011] 4. More stable printing roller processing: In this application, since the printing roller is still fixed by the self-centering fixing mechanism during processing, displacement or even loosening and falling off of the printing roller can be avoided during processing, effectively ensuring the accuracy and stability of printing roller processing.

[0012] Preferably, as an improvement, the self-centering fixing mechanism includes a slide, a rotating seat, an end plate, and an extrusion seat. The slide is slidably engaged with the support frame, the rotating seat is rotatably connected to the slide, the end plate is fixedly connected to the rotating seat, and the number of extrusion seats is at least three. All extrusion seats are slidably connected along the radial direction of the end plate. A locking unit that drives all extrusion seats to slide synchronously is connected to the rotating seat, and a rotating unit that drives the rotating seat to rotate is connected to the slide.

[0013] In this design, the rotating seat and the sliding seat are rotatably connected, and the sliding seat is connected to a rotating unit that drives the rotating seat to rotate. During the printing roller processing, the rotating unit drives the rotating seat to rotate, which in turn drives the end plate and the extrusion seat to rotate, causing the printing roller fixed on the extrusion seat to rotate. The laser processing head can then process the printing roller circumferentially. In addition, this design has at least three extrusion seats. All extrusion seats slide along the radial direction of the end plate and are located on a circle with the center of the end plate as the center. When the locking unit drives all extrusion seats to slide synchronously along the radial direction of the end plate, all extrusion seats move closer to each other and can clamp and fix printing rollers of different diameters, resulting in a wide range of printing roller processing sizes.

[0014] Preferably, as an improvement, the locking unit includes a locking drive and a locking shaft fixedly connected to the locking drive, the locking drive being fixedly connected to the rotating seat; the locking shaft is provided with a driving oblique protrusion, and the pressing seat is provided with a mating oblique groove that mates with the wedge surface of the driving oblique protrusion.

[0015] In this solution, when the locking drive unit drives the locking shaft to approach or move away from the end plate, the drive cam and drive groove slide together, causing the extrusion seat to slide along the radial direction of the end plate. This allows all the extrusion seats to approach each other and press and fix the printing roller, resulting in a stable structure that can reliably press and fix the printing roller.

[0016] Preferably, as an improvement, the rotating unit includes a rotating motor, a gear, and a gear ring. The rotating motor is fixedly connected to the slide, the gear is fixedly connected to the rotating motor, and the gear ring is fixedly connected to the rotating seat and meshes with the gear.

[0017] Preferably, as an improvement, an extrusion block is fixedly connected to one end of the extrusion seat facing the center of the end plate.

[0018] In this solution, the extrusion block is fixed on the extrusion seat. When it is pressed against the fixed printing roller, the extrusion block and the printing roller are in contact and pressed together. In actual application, the contact end face of the extrusion block and the printing roller can be treated separately, such as by spraying wear-resistant and anti-corrosion coatings, so that the extrusion block can press against the fixed printing roller more stably for a long time.

[0019] Preferably, as an improvement, the end plate is provided with a guide groove that slides with the extrusion seat, and the extrusion seat is fixedly connected with a first limiting seat and a second limiting seat, which slide with the two sides of the end plate respectively.

[0020] In this scheme, the first and second limiting seats are slidably engaged with the two sides of the end plate, respectively, to ensure that the extrusion seat can only slide along the radial direction of the end plate during use, and cannot slide along the axial direction of the end plate, thus ensuring the accuracy and stability of the extrusion seat in pressing and fixing the printing roller.

[0021] Preferably, as an improvement, the lateral drive mechanism includes a lateral electric cylinder fixedly connected between the support frame and the slide block; a lateral slide is fixedly connected to the support frame, and the slide block is connected to the lateral slide block.

[0022] Compared to using a hydraulic cylinder to drive the slide block to slide laterally, this solution uses an electric cylinder to drive the slide block to slide laterally relative to the support frame. The electric cylinder can control the sliding distance more precisely and conveniently, thereby accurately fixing the printing rollers of different lengths. At the same time, a horizontal slide table is fixed on the support frame, and the slide block is connected to the horizontal slide table. The horizontal electric cylinder can drive the slide block to slide laterally more smoothly and precisely.

[0023] Preferably, as an improvement, a vertical drive component is fixedly connected to the support frame, and a base is fixedly connected to the vertical drive component, with the intermediate seat movably connected to the base.

[0024] In this solution, when processing printing rollers of different diameters, the vertical drive component drives the base to slide vertically. The base drives the intermediate seat and the support seat to move vertically, which can adjust the printing roller placed on the placement groove to a position approximately at the same height as the two self-centering fixing mechanisms, so that the self-centering fixing mechanisms can accurately and quickly fix the printing roller.

[0025] Preferably, as an improvement, a transverse guide shaft is fixedly connected to the intermediate seat, and a transverse guide hole is opened on the base to slide with the transverse guide shaft; two transverse support springs are sleeved on the transverse guide shaft, and the two transverse support springs are respectively located at both ends of the transverse guide shaft, with one end of the transverse support spring abutting against the intermediate seat and the other end abutting against the base.

[0026] In this design, the cooperation between the transverse guide shaft and the transverse guide hole allows the intermediate seat to move more smoothly and laterally relative to the base. Furthermore, transverse support springs are provided at both ends of the transverse guide shaft to ensure that the intermediate seat can slide laterally relative to the base when the self-centering fixing mechanism clamps and fixes the printing roller, so that the printing roller can be self-centered and fixed.

[0027] Preferably, as an improvement, a vertical guide shaft is fixedly connected to the intermediate seat, and a vertical guide hole is opened on the support seat to slide with the vertical guide shaft; the vertical elastic element includes a vertical support spring sleeved on the vertical guide shaft, one end of the vertical support spring abutting against the intermediate seat and the other end abutting against the support seat.

[0028] In this design, the vertical guide shaft and the vertical guide hole slide together to make the vertical movement of the support seat relative to the middle seat more stable and smooth. The vertical support spring is sleeved on the vertical guide shaft so that the vertical support spring can more stably support the support seat vertically. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the front side of a laser engraving roller in Embodiment 1 of this utility model.

[0030] Figure 2 This is a schematic diagram of the self-centering fixing mechanism in Embodiment 1 of this utility model.

[0031] Figure 3 This is a schematic diagram of the connection between the locking shaft and the extrusion seat in Embodiment 1 of this utility model (one of the extrusion seats is in an exploded state).

[0032] Figure 4 This is a schematic diagram of the connection between the intermediate seat and the support seat in Embodiment 1 of this utility model.

[0033] Figure 5 This is a front view of the front side of a laser engraving roller according to Embodiment 2 of this utility model. Detailed Implementation

[0034] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: support frame 1, laser processing head 2, transverse guide rod 3, lead screw 4, laser seat 5, drive motor 6, slide 7, rotating seat 8, end plate 9, extrusion seat 10, extrusion block 1001, mating groove 1002, transverse slide table 11, transverse electric cylinder 12, rotating motor 13, gear 14, gear ring 15, first limit seat 16, second limit seat 17, locking shaft 18, drive inclined cam 1801, locking hydraulic cylinder 19, intermediate seat 20, support seat 21, placement groove 2101, transverse guide shaft 22, foot seat 23, transverse support spring 24, vertical guide shaft 25, vertical support spring 26, vertical electric cylinder 27, base 28, printing roller 1000. Example

[0035] This embodiment is as shown in the appendix. Figure 1 As shown: A laser engraving roller includes a support frame 1, on which a laser processing head 2 is laterally slidably connected. Specifically, a transverse guide rod 3 is fixedly connected to the support frame 1 by screws, and a lead screw 4, parallel to the transverse guide rod 3, is rotatably connected to the support frame 1 via bearings. A laser base 5 is laterally slidably connected to the transverse guide rod 3, and the laser base 5 is threadedly engaged with the lead screw 4. A drive motor 6 is fixedly connected to the support frame 1 by screws, and the output shaft of the drive motor 6 is connected to the lead screw 4 via a coupling. The laser processing head 2 is fixedly connected to the laser base 5 by screws. The drive motor 6 drives the lead screw 4 to rotate, which causes the laser base 5 to slide laterally, thereby causing the laser processing head 2 to move laterally and process the printing roller 1000.

[0036] Combination Figure 1 and Figure 2 Two self-centering fixing mechanisms are slidably connected to the support frame 1 along a direction parallel to the transverse sliding direction of the laser processing head 2. The self-centering fixing mechanisms are used for automatic centering and alignment of the end of the printing roller 1000. A transverse drive mechanism is connected between the self-centering fixing mechanisms and the support frame 1. Specifically, the self-centering fixing mechanism includes a slide 7, a rotating seat 8, an end plate 9, and an extrusion seat 10. The slide 7 is L-shaped. The rotating seat 8 is rotatably connected to the side of the vertical section of the slide 7 via bearings. A transverse slide 11 is fixedly connected to the support frame 1 by screws. The transverse section at the bottom of the slide 7 slides in cooperation with the transverse slide 11. The transverse drive mechanism includes a transverse electric cylinder 12 fixedly connected between the support frame 1 and the slide 7 by screws.

[0037] A rotating unit for driving the rotating seat 8 is connected to the slide 7. The rotating unit includes a rotating motor 13, a gear 14, and a gear ring 15. The rotating motor 13 is fixedly connected to the vertical section of the slide 7 by screws. The gear 14 is fixedly connected to the output shaft of the rotating motor 13 by a flat key. The gear ring 15 is fixedly connected to the outer wall of the rotating seat 8 by a flat key, and the gear ring 15 and the gear 14 mesh with each other. When the output shaft of the rotating motor 13 rotates, the rotating seat 8 is driven to rotate through the transmission of the gear 14 and the gear ring 15. When the printing roller 1000 is installed and fixed on the self-centering fixing mechanism, the printing roller 1000 can rotate with the rotating seat 8 so that the laser processing head 2 can process the circumference of the printing roller 1000. To control costs and ensure the stability of the drive, in this embodiment, the rotating unit is connected to only one self-centering fixing mechanism, and no rotating unit is provided on the other self-centering fixing mechanism.

[0038] Combination Figure 2 and Figure 3 The end plate 9 is fixedly connected to the end of the rotating seat 8 away from the slide 7 by screws. The number of extrusion seats 10 is at least three. In this embodiment, three extrusion seats 10 are used as an example. The three extrusion seats 10 are evenly distributed on the circumference with the center of the end plate 9 as the center. The end plate 9 has a guide groove arranged radially along the end plate 9. The extrusion seat 10 slides with the guide groove. At the same time, a first limiting seat 16 and a second limiting seat 17 are fixedly connected to the extrusion seat 10. The first limiting seat 16 is integrally formed on the extrusion seat 10. The second limiting seat 17 is fixedly connected to the side wall of the extrusion seat 10 by screws. The first limiting seat 16 and the second limiting seat 17 are located on both sides of the end plate 9 and slide with the side of the end plate 9. Under the limiting action of the first limiting seat 16 and the second limiting seat 17, the extrusion seat 10 can only slide radially relative to the end plate 9 and cannot move along the axial direction of the end plate 9. To facilitate more convenient and stable extrusion of the printing roller 1000 by the extrusion seat 10, in this embodiment, an extrusion block 1001 is fixedly connected to the extrusion seat 10 by an integral molding method. In actual processing, a wear-resistant and rust-proof coating can be applied to the contact surface between the extrusion block 1001 and the printing roller 1000.

[0039] like Figure 3As shown, the rotating seat 8 is hollow inside. A locking unit is connected to the rotating seat 8 to drive all the extrusion seats 10 to slide synchronously. The locking unit includes a locking drive and a locking shaft 18 fixedly connected to the locking drive. In this embodiment, the locking drive includes a locking hydraulic cylinder 19. The locking shaft 18 is fixedly connected to the output shaft of the locking hydraulic cylinder 19 through a coupling. The locking shaft 18 is laterally slidably connected inside the rotating seat 8. The locking shaft 18 has an integrally formed or machined driving oblique protrusion 1801. The extrusion seat 10 has an integrally formed or machined mating oblique groove 1002 that mates with the wedge surface of the driving oblique protrusion 1801. When the locking shaft 18 slides laterally under the pushing action of the locking hydraulic cylinder 19, the mating of the driving oblique protrusion 1801 and the mating oblique groove 1002 can drive the extrusion seat 10 to slide relative to the end plate 9, thereby clamping or releasing the extrusion block 1001 on the extrusion seat 10.

[0040] Combination Figure 1 and Figure 4 A middle seat 20 is laterally movably connected to the support frame 1. The direction of movement of the middle seat 20 is perpendicular to the sliding direction of the laser processing head 2. A support seat 21 is vertically movably connected to the middle seat 20. A vertical elastic element connects the support seat 21 and the middle seat 20. The top surface of the support seat 21 has a horizontally arranged placement groove 2101, in which the printing roller 1000 can be placed during use. Specifically, a horizontally arranged transverse guide shaft 22 is connected to the middle seat 20. A transverse guide hole is opened on the middle seat 20 to slide with the transverse guide shaft 22, allowing the middle seat 20 to move relative to the support frame 1 through the transverse guide shaft 22. There are two transverse guide shafts 22, which are located on the left and right sides of the middle seat 20 respectively. The support frame 1 is fixedly connected to the foot seat 23 by screws. The two ends of the transverse guide shaft 22 protrude from the front and rear sides of the middle seat 20 respectively, and the two ends of the transverse guide shaft 22 are fixedly connected to the foot seat 23 by screws. Transverse support springs 24 are sleeved on both ends of the transverse guide shaft 22. One end of the transverse support spring 24 abuts against the foot seat 23 and the other end abuts against the middle seat 20.

[0041] A vertical guide shaft 25 is fixedly connected to the intermediate seat 20 by screws. There are four vertical guide shafts 25, which are located at the four corners of the intermediate seat 20. The support seat 21 has vertical guide holes of the same number as the vertical guide shafts 25. The vertical elastic element includes a vertical support spring 26 sleeved on the vertical guide shaft 25. The bottom end of the vertical support spring 26 abuts against the intermediate seat 20 and the top end abuts against the bottom surface of the support seat 21. In order to prevent the support seat 21 from sliding upward out of the vertical guide shaft 25, in this embodiment, a limit block is fixedly connected to the top surface of the vertical guide shaft 25 by screws. The diameter of the limit block is larger than the inner diameter of the vertical guide hole.

[0042] The specific implementation process is as follows: In this embodiment, when the printing roller 1000 needs to be processed, the printing roller 1000 is first placed on the placement groove 2101. Then, the transverse electric cylinder 12 pushes the two slide blocks 7 to slide along the transverse slide table 11 and move closer to each other until the end of the printing roller 1000 contacts the end plate 9. At this time, the end of the printing roller 1000 is located between the extrusion blocks 1001. Then, the locking hydraulic cylinder 19 pulls the locking shaft 18 to slide relative to the rotating seat 8, so that the locking shaft 18 pulls all the extrusion blocks 10 closer to each other, and finally the extrusion blocks 1001 press and fix the end of the printing roller 1000, thus achieving... The installation and fixing of the printing roller 1000 is achieved because all the extrusion seats 10 slide synchronously. Therefore, the printing roller 1000 can be automatically centered and aligned when it is fixed, so that the printing roller 1000 can be automatically and accurately installed and fixed. Even if there is a deviation in the position of the printing roller 1000 before fixing, the intermediate seat 20 can move laterally back and forth, and the support seat 21 can move vertically. During the process of the extrusion block 1001 pressing against and fixing the printing roller 1000, the support seat 21 can be squeezed and moved, so that the position of the printing roller 1000 is automatically adjusted to the predetermined state, ensuring the accuracy of the installation and fixing of the printing roller 1000.

[0043] After the printing roller 1000 is installed and fixed, the drive motor 6 drives the lead screw 4 to rotate. The lead screw 4 drives the laser seat 5 and the laser processing head 2 to move laterally to process the printing roller 1000. During the processing, the rotating motor 13 drives the gear 14 to rotate. The gear 14 drives the printing roller 1000, which is installed and fixed between the extrusion blocks 1001, to rotate through the transmission of the gear ring 15 and the rotating seat 8, so that the laser processing head 2 can complete the circumferential processing of the printing roller 1000. Example

[0044] The difference between Example 2 and Example 1 is as follows: Figure 5 As shown, a vertical drive component is fixedly connected to the support frame 1. The vertical drive component includes a vertical electric cylinder 27 fixedly connected to the support frame 1 by screws. The vertical electric cylinder 27 is arranged vertically and there are two vertical electric cylinders 27. A base 28 is fixedly connected to the output shaft at the top of the vertical electric cylinder 27 by screws. The intermediate seat 20 is movably connected to the base 28 laterally. Specifically, the two ends of the horizontal guide shaft 22 are fixedly connected to the top of the base 28 by screws respectively.

[0045] In this embodiment, by setting a vertical electric cylinder 27 and a base 28, the height of the intermediate seat 20 and the support seat 21 in the vertical direction can be adjusted. When processing printing rollers 1000 of different diameters, the vertical electric cylinder 27 can drive the printing roller 1000 to move vertically. When installing the printing roller 1000, the printing roller 1000 can be moved upward to a position approximately equal to the height of the self-centering fixing mechanism, so that the self-centering fixing mechanism can quickly and accurately clamp and fix the printing roller 1000. When the laser processing head 2 processes the printing roller 1000, the vertical electric cylinder 27 can drive the base 28, the intermediate seat 20, and the support seat 21 downward away from the printing roller 1000 to avoid obstructing the processing of the printing roller 1000. After the printing roller 1000 is processed, the support seat 21 is pushed upward to support the processed printing roller 1000, thereby improving the stability and safety of the printing roller 1000 during installation and processing.

[0046] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A laser engraving roller, comprising a support frame, wherein a laser processing head is laterally slidably connected to the support frame, characterized in that: Two self-centering fixing mechanisms are slidably connected to the support frame along the sliding direction of the laser processing head. A transverse driving mechanism is connected between the self-centering fixing mechanism and the support frame. A middle seat is movably connected to the support frame laterally. The movement direction of the middle seat is perpendicular to the sliding direction of the laser processing head. A support base is movably connected to the middle seat vertically. A vertical elastic element is connected between the support base and the middle seat. The top surface of the support base is provided with a placement groove that cooperates with the printing roller.

2. The laser engraving roller according to claim 1, characterized in that: The self-centering fixing mechanism includes a slide, a rotating seat, an end plate, and an extrusion seat. The slide is slidably engaged with the support frame, the rotating seat is rotatably connected to the slide, the end plate is fixedly connected to the rotating seat, and the number of extrusion seats is at least three. All extrusion seats are slidably connected along the radial direction of the end plate. A locking unit that drives all extrusion seats to slide synchronously is connected to the rotating seat, and a rotating unit that drives the rotating seat to rotate is connected to the slide.

3. A laser engraving roller according to claim 2, characterized in that: The locking unit includes a locking drive and a locking shaft fixedly connected to the locking drive. The locking drive is fixedly connected to the rotating seat. The locking shaft is provided with a driving oblique protrusion, and the pressing seat is provided with a mating oblique groove that mates with the wedge surface of the driving oblique protrusion.

4. A laser engraving roller according to claim 2, characterized in that: The rotating unit includes a rotating motor, a gear, and a gear ring. The rotating motor is fixedly connected to the slide, the gear is fixedly connected to the rotating motor, and the gear ring is fixedly connected to the rotating seat and meshes with the gear.

5. A laser engraving roller according to claim 2, characterized in that: An extrusion block is fixedly connected to one end of the extrusion seat facing the center of the end plate.

6. A laser engraving roller according to claim 2, characterized in that: The end plate is provided with a guide groove that slides with the extrusion seat. The extrusion seat is fixedly connected with a first limiting seat and a second limiting seat, which slide with the two sides of the end plate respectively.

7. A laser engraving roller according to claim 2, characterized in that: The lateral drive mechanism includes a lateral electric cylinder fixedly connected between the support frame and the slide block; a lateral slide is fixedly connected to the support frame, and the slide block is connected to the lateral slide block.

8. A laser engraving roller according to any one of claims 1-7, characterized in that: A vertical drive component is fixedly connected to the support frame, and a base is fixedly connected to the vertical drive component. The intermediate seat is movably connected to the base.

9. A laser engraving roller according to claim 8, characterized in that: A transverse guide shaft is fixedly connected to the intermediate seat, and a transverse guide hole is opened on the base to slide with the transverse guide shaft; two transverse support springs are sleeved on the transverse guide shaft, and the two transverse support springs are respectively located at both ends of the transverse guide shaft, with one end of the transverse support spring abutting against the intermediate seat and the other end abutting against the base.

10. A laser engraving roller according to claim 9, characterized in that: A vertical guide shaft is fixedly connected to the intermediate seat, and a vertical guide hole is opened on the support seat to slide with the vertical guide shaft; the vertical elastic element includes a vertical support spring sleeved on the vertical guide shaft, one end of the vertical support spring abutting against the intermediate seat and the other end abutting against the support seat.

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