A laser-based plate making apparatus

Abstract

The application relates to the technical field of laser plate making, and provides a laser plate making equipment, which comprises a machine table and a laser engraving assembly arranged on the machine table, two sliding seats are slidably arranged on the machine table, a plate roller is arranged between the two sliding seats, and the side walls of the two sliding seats which are close to each other are each provided with a three-jaw chuck used for clamping the plate roller; two lifting seats are slidably arranged on the machine table, and the two lifting seats are respectively used for supporting two ends of the plate roller; and the sliding seat is provided with a lifting assembly used for driving the lifting seat to lift. The laser plate making equipment can improve the installation convenience between the plate roller and the machine table.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser plate making, in particular to a laser plate making equipment. BACKGROUND

[0002] In recent years, laser plate making technology has become a relatively advanced plate making method, and its main working principle is: using laser to act on the protective layer (mainly photosensitive glue, etc.) pre-coated on the surface of the plate roller according to the plate pattern track, and the part of the plate roller surface where the protective layer falls off is exposed to form the plate pattern, and then the plate roller is subjected to corrosion, cleaning and other treatments, and finally the plate pattern is formed.

[0003] In the prior art, the laser plate making equipment includes a machine table and a laser engraving assembly arranged on the machine table, and a clamping piece for clamping the plate roller is arranged on the machine table. After the surface of the plate roller is coated with a protective layer, the two ends of the plate roller are clamped and fixed on the machine table through the clamping piece, and then the laser engraving assembly is used to perform laser plate making on the plate roller. However, when the plate roller is connected with the clamping piece, it is necessary to ensure that the plate roller and the clamping piece are aligned to a certain extent, so that the clamping piece can clamp the plate roller. For large-size plate rollers, such plate rollers have a certain weight, which makes it time-consuming and laborious to adjust the position of the plate roller, increases the installation difficulty between the plate roller and the machine table, and thus reduces the working efficiency of plate making. Therefore, further improvement is needed. SUMMARY

[0004] In order to improve the installation convenience between the plate roller and the machine table, the present application provides a laser plate making equipment.

[0005] The laser plate making equipment provided by the present application adopts the following technical scheme:

[0006] A laser plate making equipment includes a machine table and a laser engraving assembly arranged on the machine table, and two sliding seats are slidably installed on the machine table. A plate roller is arranged between the two sliding seats, and the side walls of the two sliding seats that are close to each other are each provided with a three-jaw chuck for clamping the plate roller. Two lifting seats are slidably installed on the machine table, and the two lifting seats are respectively used to support the two ends of the plate roller. The sliding seat is provided with a lifting assembly for driving the lifting seat to lift.

[0007] By adopting the above technical scheme, by the arrangement of the lifting seat and the lifting assembly, when the plate roller is installed, the two ends of the plate roller are respectively overlapped on the two lifting seats, the lifting assembly drives the lifting seat to lift, the plate roller is lifted to align with the three-jaw chuck of the sliding seat, then the two sliding seats are driven to approach each other, and the three-jaw chuck clamps and limits the plate roller. Then the lifting seat is driven to move downward, so that the plate roller is separated from the lifting seat, and finally the laser engraving assembly is used to perform laser plate making on the plate roller. The arrangement of the lifting seat can facilitate the alignment between the plate roller and the three-jaw chuck, thereby facilitating the disassembly and assembly of the plate roller and improving the working efficiency of plate making.

[0008] Optionally, the three-jaw chuck has a clamping channel for the plate roller to extend into, the lifting assembly comprises a guide block and a push rod, the guide block is arranged at the bottom of the lifting seat, one end of the push rod is connected to the sliding seat, and the free end of the push rod abuts against the bottom wall of the guide block; the bottom wall of the guide block is sequentially formed with a first horizontal plane, a second horizontal plane and a third horizontal plane from the side close to the sliding seat to the side away from the sliding seat, the first horizontal plane and the third horizontal plane are at the same height, and the height of the first horizontal plane is higher than that of the second horizontal plane; when the free end of the push rod is displaced to the second horizontal plane, the lifting seat is lifted and drives the plate roller to be lifted to be flush with the clamping channel.

[0009] By adopting the technical scheme, under normal circumstances, the push rod is displaced to the first horizontal plane of the guide block by the sliding seat, the two ends of the plate roller are overlapped on the two lifting seats, the sliding seat is displaced towards the plate roller, the sliding seat can drive the free end of the push rod to be transferred from the first horizontal plane to the second horizontal plane, in this process, the push rod can push the lifting seat, forcing the lifting seat to be lifted and the plate roller to be lifted to be flush with the clamping channel; the sliding seat is continuously displaced, so that the plate roller is inserted into the clamping channel (at this time, the free end of the push rod is still located at the second horizontal plane); the sliding seat is continuously displaced again, so that the free end of the push rod is transferred from the second horizontal plane to the third horizontal plane, in this process, the lifting seat can be lowered to be separated from the plate roller, so that the plate roller is transferred from the lifting seat to the sliding seat. When disassembling, the push rod is transferred from the third horizontal plane to the second horizontal plane, so that the lifting seat can be lifted again to butt against the plate roller, after butt joint, the push rod is transferred from the second horizontal plane to the first horizontal plane, so that the lifting seat can be lowered, thereby lowering the plate roller, greatly improving the convenience of disassembling and assembling the plate roller.

[0010] Optionally, the guide block comprises a first guide part and a second guide part, the first guide part is arranged at the bottom of the lifting seat, and the second guide part is arranged at the bottom wall of the first guide part; the first horizontal plane and the third horizontal plane are both located at the bottom wall of the first guide part and symmetrically distributed on the two sides of the second guide part, and the second horizontal plane is located at the bottom wall of the second guide part; the second guide part gradually decreases in width from top to bottom and forms a first guide surface and a second guide surface, respectively; the two sides of the first guide surface are connected to the first horizontal plane and the second horizontal plane, respectively, and the two sides of the second guide surface are connected to the second horizontal plane and the third horizontal plane, respectively.

[0011] By adopting the technical scheme, the first guide surface and the second guide surface are arranged, so that the first horizontal plane, the second horizontal plane and the third horizontal plane can form a continuous surface, so as to drive the lifting seat to be lifted when the push rod is displaced along the bottom wall of the guide block.

[0012] Optionally, a support plate is mounted on the top wall of the lifting seat, a support groove is formed in the top wall of the support plate for embedding the plate roller, and the lifting seat supports the plate roller through the support plate; the support plate is provided with a centering assembly, and when the free end of the push rod is displaced to the second horizontal plane, the centering assembly is used to force the central axis of the plate roller to coincide with the central axis of the clamping channel.

[0013] By adopting the technical scheme, after the plate roller is embedded in the support groove, the support plate supports the plate roller; when the free end of the push rod is displaced to the second horizontal plane (i.e., the plate roller is lifted to be flush with the clamping channel), at this time, the centering assembly is used to force the central axis of the plate roller to coincide with the central axis of the clamping channel, so as to improve the alignment accuracy between the plate roller and the clamping channel, so as to facilitate the clamping and fixing of the plate roller by the three-jaw chuck and improve the installation convenience.

[0014] Optionally, the centering assembly comprises a centering block and a limiting bolt, the centering block is inserted into the support groove, a centering groove is formed in the top wall of the centering block, and the inner wall of the centering groove is attached to the peripheral wall of the plate roller; a first limiting hole is formed in the side wall of the support plate and communicates with the support groove, a second limiting hole is formed in the side wall of the centering block, the limiting bolt is sequentially inserted into the first limiting hole and the second limiting hole and is threadedly connected with the second limiting hole, and the centering block is detachably mounted on the support plate through the limiting bolt.

[0015] By adopting the technical scheme, the centering groove of the centering block is used to embed the plate roller, so as to limit the axis of the plate roller, so that when the lifting seat is lifted, the central axis of the plate roller and the central axis of the clamping channel can coincide, so as to facilitate the clamping and fixing of the plate roller by the three-jaw chuck; when the diameter of the plate roller changes, the centering block can be disassembled through the limiting bolt, and the centering block with a different arc centering groove is replaced, so as to adapt to the diameter change of the plate roller, and the adaptability of the overall structure is greatly improved.

[0016] Optionally, the centering assembly comprises a push bar, an oscillating bar, a linkage and a driving member, the push bar is slidably mounted on the support plate and can be lifted, the oscillating bar is provided with two and is symmetrically distributed on the two sides of the push bar, each oscillating bar is hinged to the support plate, and the upper end of the push bar, the upper end of the two oscillating bars form a centering area for embedding the plate roller; the linkage is arranged between the push bar and the two oscillating bars, and the linkage is used to drive the push bar and the two oscillating bars to act synchronously to expand or reduce the centering area; the driving member is arranged between the lifting seat and the machine table, and when the lifting seat is lifted, the driving member drives the push bar to be lifted to reduce the centering area.

[0017] By adopting the technical scheme, after one end of the plate roller is placed into the supporting groove and embedded into the centering area, the lifting seat is lifted, the driving member drives the pushing strip to lift, and under the action of the linkage member, the two swinging strips can simultaneously swing towards the centering area, so as to reduce the centering area, that is, to force the upper end of the pushing strip and the upper end of the two swinging strips to abut against the peripheral wall of the plate roller; the two swinging strips simultaneously swing to quickly position the plate roller, so that the position of the plate roller is adjusted to the center position of the centering area, and then when the lifting action of the lifting seat is completed, the central axis of the plate roller can coincide with the central axis of the clamping channel, thereby improving the operation convenience of plate roller centering.

[0018] Optionally, the linkage member comprises first abutting wheels and a tension spring, the first abutting wheels are provided in pairs and correspond to the two swinging strips, each first abutting wheel is rotationally connected to the lower end of the corresponding swinging strip; the pushing strip is provided with abutting blocks on both sides, the two abutting blocks correspond to the two swinging strips, and each abutting block has an abutting surface; the two ends of the tension spring are connected to the two swinging strips, respectively, and the tension spring forces the first abutting wheels of the two swinging strips to abut against the abutting surfaces of the corresponding abutting blocks; when the pushing strip is lifted relative to the support plate, the upper ends of the two swinging strips move close to each other to reduce the centering area; and when the pushing strip is lowered relative to the support plate, the upper ends of the two swinging strips move away from each other to expand the centering area.

[0019] By adopting the technical scheme, through the arrangement of the first abutting wheels and the tension spring, the action of the tension spring causes the first abutting wheels to abut against the abutting surfaces of the corresponding abutting blocks, so that when the pushing strip is lifted, the pushing strip can push the first abutting wheels through the abutting surfaces, forcing the two swinging strips to swing simultaneously to realize the synchronous action of the pushing strip and the two swinging strips, and to achieve the effect of expanding or reducing the centering area to position the central axis of the plate roller.

[0020] Optionally, the upper end of the pushing strip and the upper end of the two swinging strips are rotationally connected with second abutting wheels, and when the centering area is reduced, each second abutting wheel abuts against the peripheral wall of the plate roller.

[0021] By adopting the technical scheme, when the pushing strip lifts and simultaneously drives the upper ends of the two swinging strips to swing towards the centering area, the swinging strips abut against and push the plate roller through the second abutting wheels, reducing the friction between the swinging strips and the plate roller, so as to facilitate the swinging strips to quickly correct the plate roller more easily, and keep the central axis of the plate roller aligned with the central axis of the clamping channel.

[0022] Optionally, the driving member comprises a rotating gear, a first rack and a second rack, the rotating gear is rotationally connected to the lifting seat; the first rack and the second rack are vertically arranged, the first rack is connected to the pushing bar, and the second rack is connected to the machine table; the first rack and the rotating gear and the second rack and the rotating gear are in mesh transmission; when the lifting seat is lifted, the first rack is lifted relative to the support plate; when the lifting seat is lowered, the first rack is lowered relative to the support plate.

[0023] By adopting the above technical scheme, when the lifting seat is lifted, the first rack can be lifted relative to the support plate to force the pushing bar to be lifted relative to the support plate, so as to reduce the centering area to quickly position the central axis of the plate roller; when the lifting seat is lowered, the first rack can drive the pushing bar to be lowered relative to the support plate to force the swing bar to swing in the opposite direction and be separated from the peripheral wall of the plate roller, so that the lifting seat can be lowered, and the operation convenience of the overall structure is improved.

[0024] Optionally, a side wall of the pushing bar is provided with an adjusting groove, two ends of the adjusting groove extend in the height direction, a side wall of the first rack is provided with an adjusting block which is slidingly connected to the adjusting groove, and the first rack is slidingly installed on the pushing bar through the adjusting block; the pushing bar is provided with an adjusting bolt, a side wall of the pushing bar is provided with a plurality of adjusting holes which are in communication with the adjusting groove, the adjusting holes are arranged in the height direction at intervals, the adjusting bolt is arranged in the adjusting hole and is in threaded connection with the adjusting hole, one end of the adjusting bolt extends into the adjusting groove, and a peripheral wall of the adjusting bolt is used for abutting against a top wall of the adjusting block to limit the maximum displacement of the adjusting block in the adjusting groove.

[0025] By adopting the above technical scheme, when the diameter of the plate roller changes, the maximum displacement of the adjusting block in the adjusting groove is limited by controlling the height of the adjusting bolt (i.e., controlling the distance between the adjusting bolt and the adjusting block), if there is a gap between the adjusting block and the adjusting bolt in the initial state (the lifting seat is not lifted), the lifting seat lifts the first rack, and the adjusting block can slide in the adjusting groove for a distance (at this time, the first rack cannot lift the pushing bar), so that the swing amplitude of the swing bar can be controlled. In other words, the lifting distance of the lifting seat is fixed, when the diameter of the plate roller changes, the maximum displacement of the adjusting block is controlled by the adjusting bolt, so that the final swing amplitude of the swing bar is controlled to adapt to the diameter change of the plate roller, and the adaptability of the overall structure is improved.

[0026] In summary, the present application has at least one of the following beneficial technical effects:

[0027] 1. Through the setting of the lifting seat and the lifting assembly, when the plate roller is installed, the two ends of the plate roller are respectively overlapped on the two lifting seats, the lifting seat is driven to lift by the lifting assembly, the plate roller is lifted to align with the three-jaw chuck of the sliding seat, then the two sliding seats are driven to approach each other, and the plate roller is clamped and limited by the three-jaw chuck. Then the lifting seat is driven to move down, the plate roller is separated from the lifting seat, and finally the plate roller is engraved with a laser plate pattern by the laser engraving assembly. The setting of the lifting seat can facilitate the alignment between the plate roller and the three-jaw chuck, thereby facilitating the disassembly and assembly of the plate roller and improving the work efficiency of plate making;

[0028] 2. Through the setting of the push strip, the swing strip, the linkage and the driving piece, one end of the plate roller is embedded into the centering area after being placed into the supporting groove, the lifting seat is driven to lift, at this time the driving piece can drive the push strip to lift, under the action of the linkage, the two swing strips can simultaneously swing towards the centering area, thereby narrowing the centering area, i.e. forcing the upper end of the push strip and the upper end of the two swing strips to abut against the peripheral wall of the plate roller; the two swing strips are simultaneously swung to quickly position the plate roller, so that the position of the plate roller is adjusted to the center position of the centering area, thereby the central axis of the plate roller can coincide with the central axis of the clamping channel after the lifting action of the lifting seat is completed, improving the operation convenience of plate centering;

[0029] 3. Through the setting of the adjusting block and the adjusting bolt, when the diameter of the plate roller changes, the height of the adjusting bolt is controlled (i.e. the distance between the adjusting bolt and the adjusting block is controlled), so as to limit the maximum displacement of the adjusting block in the adjusting groove. If there is a gap between the adjusting block and the adjusting bolt in the initial state (the lifting seat is not lifted), at this time the lifting seat drives the first rack to lift, the adjusting block can slide a distance in the adjusting groove (at this time the first rack cannot drive the push strip to lift), thereby the swing of the swing strip can be controlled. In other words, the lifting distance of the lifting seat is fixed, when the diameter of the plate roller changes, the maximum displacement of the adjusting block is controlled by the adjusting bolt, thereby the final swing amplitude of the swing strip is controlled to adapt to the diameter change of the plate roller, improving the adaptability of the overall structure. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is the overall structure schematic diagram of embodiment 1;

[0031] Figure 2 is Figure 1 is the enlarged view of A in figure 1;

[0032] Figure 3 is the partial sectional view of embodiment 1 embodying the centering assembly;

[0033] Figure 4 is the partial sectional view of embodiment 1 embodying the lifting assembly;

[0034] Figure 5is a structural schematic diagram of the centering assembly embodied in embodiment 2;

[0035] Figure 6 is a partial sectional view of the driving member embodied in embodiment 2;

[0036] Figure 7 is a partial sectional view of the adjusting block embodied in embodiment 2.

[0037] BRIEF DESCRIPTION OF DRAWINGS 1, machine table; 11, processing station; 12, sliding rail; 2, laser engraving assembly; 3, sliding seat; 31, three-jaw chuck; 311, clamping channel; 32, mounting bracket; 4, plate roller; 5, lifting seat; 51, support plate; 511, support groove; 52, first mounting groove; 53, second mounting groove; 54, avoidance space; 6, lifting assembly; 61, guide block; 611, first horizontal surface; 612, second horizontal surface; 613, third horizontal surface; 614, first guide portion; 615, second guide portion; 616, first guide surface; 617, second guide surface; 62, push rod; 621, third abutting wheel; 7, centering assembly; 71, centering block; 711, centering groove; 72, limiting bolt; 73, push bar; 731, abutting block; 732, abutting surface; 733, adjusting groove; 734, adjusting bolt; 735, adjusting hole; 74, swing bar; 741, first abutting wheel; 742, tension spring; 743, second abutting wheel; 75, centering area; 76, rotating gear; 77, first rack; 771, adjusting block; 78, second rack. DETAILED DESCRIPTION

[0038] The following will be described in detail below with reference to the accompanying drawings. Figure 1 - the accompanying drawings Figure 7 The present application will be described in further detail.

[0039] Embodiment 1:

[0040] The embodiment of the present application discloses a laser plate making equipment.

[0041] Reference will be made to Figure 1 , Figure 2 A laser plate making equipment, comprising a machine table 1 and a laser engraving assembly 2, the machine table 1 is provided with a processing station 11, and the laser engraving assembly 2 (the laser engraving assembly 2 is a prior art structure, and its specific structure will not be described here) is installed in the processing station 11 of the machine table 1, so as to engrave a laser plate pattern on the surface of a plate roller 4.

[0042] Reference will be made to Figure 1 , Figure 2The processing station 11 of the machine tool 1 is equipped with a slide rail 12, and two sliding seats 3 are installed on the slide rail 12. The printing roller 4 is located between the two sliding seats 3. The side walls of the two sliding seats 3 that are close to each other are equipped with three-jaw chucks 31 for clamping the printing roller 4 (the three-jaw chuck 31 is a prior art structure, and its specific structure will not be described in detail here). The three-jaw chuck 31 has a clamping channel 311 for the printing roller 4 to extend into. Both ends of the printing roller 4 are connected to the two sliding seats 3 through the three-jaw chuck 31. The machine tool 1 is equipped with a cylinder (not shown in the figure) for driving the two sliding seats 3 to move closer or further apart. In other embodiments, the sliding seats 3 can also be driven by a linear motor to move.

[0043] It should be noted that, in order to cooperate with the laser engraving component 2, the three-jaw chuck 31 and the sliding seat 3 are rotatably connected in this embodiment. The sliding seat 3 is provided with a drive motor (not shown in the figure) for driving the three-jaw chuck 31 to rotate around the central axis of the clamping channel 311.

[0044] Reference Figure 2 , Figure 3 Two lifting seats 5 are installed in the processing station 11 of the machine tool 1. The two lifting seats 5 are correspondingly set with two sliding seats 3. The two lifting seats 5 are used to support the two end peripheral walls of the printing roller 4 respectively. The top wall of the two lifting seats 5 is integrally formed with a support plate 51. The top wall of the support plate 51 is provided with a support groove 511 for the printing roller 4 to be embedded. The lifting seats 5 support the printing roller 4 through the support plate 51.

[0045] Reference Figure 2 , Figure 4 Both lifting seats 5 are installed in the processing station 11 of the machine tool 1 and can slide along the height direction. Each sliding seat 3 is provided with a lifting component 6 between it and the corresponding lifting seat 5. The lifting component 6 is used to drive the lifting seat 5 to move up and down. In this embodiment, the lifting component 6 includes a guide block 61 and a push rod 62. The bottom wall of the lifting seat 5 is provided with a first mounting groove 52. The guide block 61 is fixedly installed in the inner wall of the first mounting groove 52. The sliding seat 3 is provided with a mounting bracket near the side wall of the corresponding lifting seat 5. 32. The mounting bracket 32 ​​and the sliding seat 3 are connected by bolts. The push rod 62 is set vertically. The lower end of the push rod 62 is fixedly installed on the end of the mounting bracket 32 ​​away from the sliding seat 3. The free end of the push rod 62 (i.e. the upper end of the push rod 62) is rotatably connected to the third abutment wheel 621. The peripheral wall of the third abutment wheel 621 abuts against the bottom wall of the guide block 61. The free end of the push rod 62 abuts against the bottom wall of the guide block 61 through the third abutment wheel 621 to support the guide block 61.

[0046] Reference Figure 4The bottom wall of the guide block 61 is sequentially formed with a first horizontal surface 611, a second horizontal surface 612 and a third horizontal surface 613 from the side close to the corresponding sliding seat 3 to the side away from the corresponding sliding seat 3; the guide block 61 comprises a first guide portion 614 and a second guide portion 615 which are integrally formed, the first guide portion 614 is fixedly installed on the inner wall of the first installation groove 52, and the second guide portion 615 is fixedly installed on the bottom wall of the first guide portion 614; in the embodiment, the first horizontal surface 611 and the third horizontal surface 613 are both located on the bottom wall of the first guide portion 614 (i.e., the first horizontal surface 611 and the third horizontal surface 613 are located at the same height), the first horizontal surface 611 and the third horizontal surface 613 are symmetrically distributed on both sides of the second guide portion 615, and the second horizontal surface 612 is located on the bottom wall of the second guide portion 615 (i.e., the first horizontal surface 611 and the third horizontal surface 613 are higher than the height of the second horizontal surface 612).

[0047] The second guide portion 615 gradually decreases in width from top to bottom and forms a first guide surface 616 and a second guide surface 617, respectively, the first guide surface 616 is connected to the first horizontal surface 611 and the second horizontal surface 612 on both sides, respectively, and the second guide surface 617 is connected to the second horizontal surface 612 and the third horizontal surface 613 on both sides, respectively; when the third abutting wheel 621 of the push rod 62 abuts against the second horizontal surface 612, the lifting seat 5 is lifted and drives the plate roller 4 to be lifted to be flush with the clamping channel 311.

[0048] Referring to Figure 2 , Figure 3 The support plate 51 is provided with a centering assembly 7, which is used to force the central axis of the plate roller 4 to coincide with the central axis of the clamping channel 311 when the third abutting wheel 621 of the push rod 62 abuts against the second horizontal surface 612; in the embodiment, the centering assembly 7 comprises a centering block 71 and a limiting bolt 72, the centering block 71 is inserted into the support groove 511, and the top wall of the centering block 71 is provided with a centering groove 711 which is a circular arc groove for fitting the peripheral wall of the plate roller 4.

[0049] Referring to Figure 3 The side wall of the support plate 51 is provided with a first limiting hole communicating with the support groove 511, the side wall of the centering block 71 is provided with a second limiting hole, and the limiting bolt 72 is sequentially threaded into the first limiting hole and the second limiting hole and is threadedly connected with the second limiting hole; in the embodiment, the number of limiting bolts 72 is two, and the centering block 71 is detachably installed on the support plate 51 by the plurality of limiting bolts 72.

[0050] It should be noted that the setting of the centering assembly 7 is for the laser engraving operation of the plate roller 4 of different sizes. In actual operation, if the workshop only needs to perform laser engraving operation on a plate roller 4 of a fixed size, the centering assembly 7 is not needed, and the shape of the support groove 511 can be set to adapt to the arc groove of the plate roller 4.

[0051] The implementation principle of the embodiment 1 of the present application is as follows: before the plate roller 4 is installed, the two sliding seats 3 are driven to move away from each other, so that the third abutting wheel 621 of the push rod 62 is displaced to the first horizontal plane 611. Then, the two ends of the plate roller 4 are respectively overlapped in the centering grooves 711 of the corresponding centering blocks 71 of the two lifting seats 5. Then, the sliding seat 3 is driven to move towards the plate roller 4. The sliding seat 3 can drive the third abutting wheel 621 of the push rod 62 to move from the first horizontal plane 611 to the second horizontal plane 612, so that the plate roller 4 is forced to be lifted to be flush with the clamping channel 311. The sliding seat 3 is continuously displaced, so that the plate roller 4 is inserted into the clamping channel 311 (at this time, the third abutting wheel 621 of the push rod 62 is still located at the second horizontal plane 612). The sliding seat 3 is continuously displaced again, so that the third abutting wheel 621 of the push rod 62 is moved from the second horizontal plane 612 to the third horizontal plane 613. In this process, the lifting seat 5 can be lowered to be separated from the plate roller 4, so that the plate roller 4 is transferred from the lifting seat 5 to the sliding seat 3.

[0052] When disassembling, the clamping force of the three-jaw chuck 31 on the plate roller 4 is released, so that the third abutting wheel 621 of the push rod 62 is moved from the third horizontal plane 613 to the second horizontal plane 612. Then, the lifting seat 5 can be lifted again to abut the plate roller 4. After abutting, the push rod 62 is moved from the second horizontal plane 612 to the first horizontal plane 611. Then, the lifting seat 5 can be driven to move downward, so that the plate roller 4 is lowered. The convenience of disassembling and assembling the plate roller 4 is greatly improved, and the working efficiency of plate making is improved.

[0053] The centering groove 711 of the centering block 71 is used for embedding the plate roller 4, so that the axis of the plate roller 4 is limited. When the lifting seat 5 is lifted, the central axis of the plate roller 4 and the central axis of the clamping channel 311 can be kept coincident, so that the three-jaw chuck 31 can clamp and fix the plate roller 4. When the diameter of the plate roller 4 changes, the centering block 71 can be disassembled by the limiting bolt 72, and the centering block 71 with a different arc centering groove 711 can be replaced, so as to adapt to the diameter change of the plate roller 4. The adaptability of the overall structure is greatly improved.

[0054] Embodiment 2

[0055] The embodiment of the present application discloses a laser plate making equipment.

[0056] With reference to Figure 5 The laser plate making equipment disclosed by the embodiment of the present application is different from the embodiment 1 in that:

[0057] In the embodiment, the centering assembly 7 comprises a pushing strip 73, two swing strips 74, a linkage and a driving member. The pushing strip 73 is vertically arranged and is slidably installed on the side wall of the support plate 51 close to the sliding seat 3 and can be lifted and lowered. The swing strips 74 are symmetrically arranged on both sides of the pushing strip 73 and are each hingedly connected to the side wall of the support plate 51 close to the sliding seat 3. The upper end of the pushing strip 73 and the upper ends of the swing strips 74 form a centering area 75 for the plate roller 4. The upper end of the pushing strip 73 and the upper ends of the swing strips 74 are each rotatably connected with a second abutting wheel 743. When the centering area 75 is reduced, each second abutting wheel 743 abuts against the peripheral wall of the plate roller 4.

[0058] With reference to Figure 5 , the linkage is arranged between the pushing strip 73 and the swing strips 74 and is used to drive the pushing strip 73 and the swing strips 74 to synchronously act to expand or reduce the centering area 75. The linkage comprises a first abutting wheel 741 and a tension spring 742. The first abutting wheels 741 are arranged in two and are arranged in correspondence with the swing strips 74. Each first abutting wheel 741 is rotatably connected to the lower end of the corresponding swing strip 74. The pushing strip 73 is fixedly installed with an abutting block 731 on each side. The abutting blocks 731 are arranged in correspondence with the swing strips 74. Each abutting block 731 has an abutting surface 732. The two ends of the tension spring 742 are respectively connected to the swing strips 74. The tension spring 742 forces the first abutting wheels 741 of the swing strips 74 to abut against the abutting surfaces 732 of the corresponding abutting blocks 731. When the pushing strip 73 is lifted relative to the support plate 51, the upper ends of the swing strips 74 are close to each other to reduce the centering area 75. When the pushing strip 73 is lowered relative to the support plate 51, the upper ends of the swing strips 74 are away from each other to expand the centering area 75.

[0059] With reference to Figure 5 , Figure 6The driving member is arranged between the lifting seat 5 and the machine table 1, and when the lifting seat 5 is lifted, the driving member drives the pushing strip 73 to be lifted to reduce the centering area 75. The driving member comprises a rotating gear 76, a first gear rack 77 and a second gear rack 78. The top wall of the lifting seat 5 is provided with a second mounting groove 53 communicating with the first mounting groove 52, and the rotating gear 76 is rotationally connected to the inner wall of the second mounting groove 53. The first gear rack 77 and the second gear rack 78 are both vertically arranged. In this embodiment, the first gear rack 77 is slidingly mounted to the inner wall of the second mounting groove 53, one end of the first gear rack 77 extends out of the second mounting groove 53 and is connected to the pushing strip 73, and the second gear rack 78 is slidingly mounted to the inner wall of the second mounting groove 53, the lower end of the second gear rack 78 extends out of the second mounting groove 53 and is fixedly connected to the bottom wall of the machining station 11 of the machine table 1, and the other end extends into the second mounting groove 53. The first gear rack 77 and the rotating gear 76 are in meshing transmission, and the second gear rack 78 and the rotating gear 76 are also in meshing transmission. When the lifting seat 5 is lifted, the first gear rack 77 is lifted relative to the supporting plate 51, and when the lifting seat 5 is lowered, the first gear rack 77 is lowered relative to the supporting plate 51.

[0060] With reference to Figure 5 It should be noted that the number of guide blocks 61 in this embodiment is two, the two guide blocks 61 are arranged side by side and form an avoiding space 54 for avoiding the second gear rack 78 between the two guide blocks 61, and the number of pushing rods 62 corresponds to the number of guide blocks 61. In this way, on the one hand, the avoiding space 54 provides installation space for the installation of the second gear rack 78, and on the other hand, by arranging two guide blocks 61 and two pushing rods 62, the supporting effect of the pushing rods 62 on the lifting seat 5 can be improved.

[0061] With reference to Figure 7 In this embodiment, the side wall of the pushing strip 73 close to the side wall of the first gear rack 77 is provided with an adjusting groove 733 extending in the height direction at both ends, the side wall of the first gear rack 77 is fixedly provided with an adjusting block 771, the adjusting block 771 is slidingly mounted in the adjusting groove 733, and the first gear rack 77 is slidingly mounted in the pushing strip 73 through the adjusting block 771. The side wall of the pushing strip 73 away from the first gear rack 77 is provided with a plurality of adjusting holes 735 communicating with the adjusting groove 733, the plurality of adjusting holes 735 are arranged in the height direction at intervals, the side wall of the pushing strip 73 away from the first gear rack 77 is provided with a communicating groove extending in the height direction at both ends, the communicating groove communicates all the adjusting holes 735, the pushing strip 73 is provided with an adjusting bolt 734, the adjusting bolt 734 is arranged in the adjusting hole 735 and is threadedly connected with the adjusting hole 735, one end of the adjusting bolt 734 extends into the adjusting groove 733, and the peripheral wall of the adjusting bolt 734 is used for abutting against the top wall of the adjusting block 771 to limit the maximum displacement of the adjusting block 771 in the adjusting groove 733.

[0062] The implementation principle of the embodiment 2 of the present application is that one end of the plate roller 4 is embedded into the centering area 75 after being placed into the supporting groove 511, the lifting seat 5 is driven to lift, in the process of lifting of the lifting seat 5, under the meshing of the rotating gear 76, the first rack 77 and the second rack 78, the pushing bar 73 can be lifted relative to the supporting plate 51, so that the two swing bars 74 can swing towards the centering area 75 at the same time, so as to reduce the centering area 75, that is, to force the upper end of the pushing bar 73 and the upper end of the two swing bars 74 to abut against the peripheral wall of the plate roller 4; the two swing bars 74 swing at the same time to quickly position the plate roller 4, so that the position of the plate roller 4 is adjusted to the center position of the centering area 75, and then when the lifting action of the lifting seat 5 is completed, the central axis of the plate roller 4 can coincide with the central axis of the clamping channel 311, thereby improving the operation convenience of the centering of the plate roller 4.

[0063] When the diameter of the plate roller 4 changes, by controlling the height of the adjusting bolt 734 (that is, controlling the distance between the adjusting bolt 734 and the adjusting block 771), the maximum displacement of the adjusting block 771 in the adjusting groove 733 is limited, if there is a gap between the adjusting block 771 and the adjusting bolt 734 in the initial state (the lifting seat 5 is not lifted), at this time, the lifting seat 5 drives the first rack 77 to lift, the adjusting block 771 can slide a distance in the adjusting groove 733 (at this time, the first rack 77 cannot drive the pushing bar 73 to lift), so as to control the swing amplitude of the swing bar 74. In other words, the lifting distance of the lifting seat 5 is fixed, when the diameter of the plate roller 4 changes, the maximum displacement of the adjusting block 771 is controlled by the adjusting bolt 734, so as to control the final lifting distance of the pushing bar 73 and the final swing amplitude of the swing bar 74 (that is, the size of the centering area 75), so as to adapt to the diameter change of the plate roller 4, and improve the adaptability of the overall structure.

[0064] The above is the preferred embodiment of the present application, which does not limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A laser-based imaging apparatus, comprising: The utility model provides a laser engraving machine, including machine table (1) and set up on machine table (1) laser engraving component (2), two sliding seats (3) are slidably installed on the machine table (1), plate roller (4) is set up between two sliding seats (3), the side wall of two sliding seats (3) is equipped with three jaw chuck (31) for clamping plate roller (4) and approaches each other, two lifting seats (5) are slidably installed on the machine table (1), and two lifting seats (5) are used for supporting the both ends of plate roller (4) respectively, and the sliding seat (3) is equipped with lifting assembly (6) for driving lifting seat (5) to lift, three jaw chuck (31) has the clamping channel (311) for plate roller (4) to extend into, and lifting assembly (6) includes guide block (61) and push rod (62), the bottom of lifting seat (5) is provided with guide block (61), one end of push rod (62) is connected to sliding seat (3), and the free end of push rod (62) is butt joint to the bottom wall of guide block (61), the bottom wall of guide block (61) is formed successively from the side close to sliding seat (3) to the side away from sliding seat (3) first horizontal plane (611), second horizontal plane (612) and third horizontal plane (613), first horizontal plane (611) and third horizontal plane (613) are located at the same height, and the height of first horizontal plane (611) is higher than second horizontal plane (612), when the free end of push rod (62) is displaced to second horizontal plane (612), lifting seat (5) is lifted and drives plate roller (4) to lift and is kept flush with clamping channel (311), the top wall of lifting seat (5) is installed with support plate (51), and the top wall of support plate (51) is provided with support groove (511) for plate roller (4) to embed, and lifting seat (5) supports plate roller (4) through support plate (51), support plate (51) is equipped with centering assembly (7), when the free end of push rod (62) is displaced to second horizontal plane (612), centering assembly (7) is used to force the central axis of plate roller (4) and the central axis of clamping channel (311) coincide, centering assembly (7) includes push bar (73), swing bar (74), linkage and drive, push bar (73) is slidably installed on support plate (51) and can be lifted, swing bar (74) is provided with two and is symmetrically distributed on the both sides of push bar (73), and each swing bar (74) is hinged to support plate (51), and the upper end of push bar (73) and the upper end of two swing bars (74) form the centering area (75) for plate roller (4) to embed, linkage is arranged between push bar (73) and two swing bars (74), and linkage is used to drive push bar (73) and two swing bars (74) synchronous action to expand or reduce centering area (75), drive is arranged between lifting seat (5) and machine table (1), when lifting seat (5) is lifted, drive makes push bar (73) lift to reduce centering area (75).

2. The laser-based plate making apparatus of claim 1, wherein: The guide block (61) comprises a first guide part (614) and a second guide part (615), the first guide part (614) is arranged on the bottom of the lifting seat (5), the second guide part (615) is arranged on the bottom wall of the first guide part (614), the first horizontal plane (611) and the third horizontal plane (613) are both located on the bottom wall of the first guide part (614) and symmetrically distributed on the two sides of the second guide part (615), and the second horizontal plane (612) is located on the bottom wall of the second guide part (615); the second guide part (615) gradually decreases in width from top to bottom and forms a first guide surface (616) and a second guide surface (617) respectively, the two sides of the first guide surface (616) are connected with the first horizontal plane (611) and the second horizontal plane (612) respectively, and the two sides of the second guide surface (617) are connected with the second horizontal plane (612) and the third horizontal plane (613) respectively.

3. The laser-based plate making apparatus of claim 1, wherein: The linkage comprises first abutting wheels (741) and a tension spring (742), the first abutting wheels (741) are provided with two and correspondingly arranged with two swing bars (74), each first abutting wheel (741) is rotationally connected to the lower end of the corresponding swing bar (74); the two sides of the push bar (73) are provided with abutting blocks (731), the two abutting blocks (731) are correspondingly arranged with the two swing bars (74), and each abutting block (731) has an abutting surface (732); the two ends of the tension spring (742) are connected with the two swing bars (74) respectively, the tension spring (742) forces the first abutting wheels (741) of the two swing bars (74) to abut on the abutting surfaces (732) of the corresponding abutting blocks (731) respectively, when the push bar (73) is lifted relative to the support plate (51), the upper ends of the two swing bars (74) are close to each other to reduce the centering area (75), and when the push bar (73) is lowered relative to the support plate (51), the upper ends of the two swing bars (74) are away from each other to expand the centering area (75).

4. The laser-based plate making apparatus of claim 1, wherein: The upper end of the push bar (73) and the upper ends of the two swing bars (74) are rotationally connected with second abutting wheels (743), when the centering area (75) is reduced, each second abutting wheel (743) abuts on the peripheral wall of the plate roller (4).

5. The laser-based plate making apparatus of claim 1, wherein: The driving member comprises a rotating gear (76), a first rack (77) and a second rack (78), the rotating gear (76) is rotationally connected to the lifting seat (5); the first rack (77) and the second rack (78) are both vertically arranged, the first rack (77) is connected to the push bar (73), and the second rack (78) is connected to the machine table (1); the first rack (77) and the second rack (78) are both in meshing transmission with the rotating gear (76); when the lifting seat (5) is lifted, the first rack (77) is lifted relative to the support plate (51), and when the lifting seat (5) is lowered, the first rack (77) is lowered relative to the support plate (51).

6. A laser-based plate making apparatus as claimed in claim 5, wherein: The side wall of the pushing strip (73) is provided with an adjusting groove (733), both ends of the adjusting groove (733) extend along the height direction, the side wall of the first rack (77) is provided with an adjusting block (771) which is slidably connected to the adjusting groove (733), and the first rack (77) is slidably installed on the pushing strip (73) through the adjusting block (771); the pushing strip (73) is provided with an adjusting bolt (734), the side wall of the pushing strip (73) is provided with a plurality of adjusting holes (735) which are in communication with the adjusting groove (733), the plurality of adjusting holes (735) are arranged at intervals along the height direction, the adjusting bolt (734) is arranged in the adjusting hole (735) and is in threaded connection with the adjusting hole (735), one end of the adjusting bolt (734) extends into the adjusting groove (733), and the peripheral wall of the adjusting bolt (734) is used for abutting against the top wall of the adjusting block (771) so as to limit the maximum displacement of the adjusting block (771) in the adjusting groove (733).

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