A gravure printing roller processing equipment and processing technology

Abstract

This application relates to the field of printing roller production technology, and discloses a gravure printing roller processing equipment and process, which includes a loading rack, a hoisting device, a welding and plugging device, a precision turning device, and a grinding device. The loading rack, welding and plugging device, precision turning device, and grinding device are sequentially arranged on the ground. The welding and plugging device is used to weld plugs onto steel pipes. The precision turning device is used to perform precision turning on the printing roller blank. The grinding device is used to grind the printing roller blank. The hoisting device includes a support frame, a moving plate, a power mechanism, and a clamping mechanism. The support frame is fixedly connected to the ground, the moving plate is slidably connected to the support frame, the power mechanism is connected to the support frame and connected to the moving plate to drive the moving plate to slide, and the clamping mechanism is connected to the moving plate and is used to clamp the printing roller blank. This application has the effect of automating the processing of printing roller blanks, reducing labor costs in printing roller processing, and improving printing roller processing efficiency.

Description

Technical Field

[0001] This application relates to the field of printing roller production technology, and in particular to a gravure printing roller processing equipment and processing technology. Background Technology

[0002] Gravure printing, as a printing process, occupies an important position in the printing, packaging, and graphic publishing fields due to its advantages such as thick ink layers, high saturation, stable print quality, and fast printing speed. Gravure printing uses gravure printing rollers for rolling printing. Gravure printing rollers are a type of printing roller and one of the core components of the gravure printing process.

[0003] The processing of gravure printing rollers mainly includes multiple processes such as steel pipe blank forming, rounding, welding, precision turning, and grinding. During the processing of gravure printing rollers, after the completion of one process, the rollers need to be transported to the next process by handcart or manual handling, and then the rollers will be processed in the next process.

[0004] Regarding the aforementioned technologies, the inventors discovered that during the processing of printing rollers, manual handling and transfer of the rollers are required. Due to the heavy weight of the printing rollers, the handling process is time-consuming, labor-intensive, and inefficient. Consequently, the processing of gravure printing rollers suffers from low automation, resulting in high labor costs. Summary of the Invention

[0005] To alleviate the problem of high labor costs due to low automation in the gravure printing roller processing, this application provides a gravure printing roller processing equipment and process.

[0006] Firstly, this application provides a gravure printing roller processing equipment, which adopts the following technical solution:

[0007] A gravure printing roller processing device includes a feeding rack, a hoisting device, a welding and plugging device, a precision turning device, and a grinding device. The feeding rack, welding and plugging device, precision turning device, and grinding device are sequentially arranged on the ground. The feeding rack feeds and positions a steel pipe. The welding and plugging device welds a plug onto the steel pipe. The precision turning device performs precision turning on the roller blank. The grinding device grinds the roller blank. The hoisting device includes a support frame, a moving plate, a power mechanism, and a clamping mechanism. The support frame is fixedly connected to the ground. The moving plate is slidably connected to the support frame. The power mechanism is connected to the support frame and connected to the moving plate to drive the moving plate to slide. The clamping mechanism is connected to the moving plate and is used to clamp the roller blank.

[0008] By adopting the above technical solution, during the processing of the printing roller, the steel pipe is first placed on the loading rack, and the end caps are clamped at both ends of the steel pipe using a clamping mechanism. Then, the welding and plugging device is activated to weld the two end caps to both ends of the steel pipe, thus forming the printing roller blank. Next, the clamping mechanism clamps the printing roller blank and moves it to the precision turning device. The precision turning device is then activated to perform precision turning on the printing roller. After the precision turning is completed, the printing roller blank continues to move to the grinding position under the clamping mechanism. Then, the grinding device is activated to grind the printing roller blank held by the clamping mechanism. After the grinding is completed, the hoisting device hoists the printing roller blank to a temporary storage position, awaiting subsequent electroplating. This achieves automated processing of the printing roller blank, reduces the possibility of manual handling of the printing roller, reduces labor costs in printing roller processing, and improves the processing efficiency of the printing roller.

[0009] Preferably, the feeding rack has a feeding groove for clamping the steel pipe, the welding plug device is connected to the feeding rack, and the clamping mechanism is used to clamp the two plugs at both ends of the steel pipe respectively.

[0010] By adopting the above technical solution, the setting of the feeding trough enables the steel pipe to be placed smoothly and accurately in the feeding position, thereby ensuring the accuracy of the automatic clamping of the clamping mechanism and the accuracy of the plug welding.

[0011] Preferably, the clamping mechanism includes a lifting assembly, a support rod, and a clamping assembly. The lifting assembly includes an electric cylinder, which is fixedly connected to the movable plate. The support rod is connected to the piston rod of the electric cylinder. The electric cylinder is used to drive the support rod to rise and fall. The clamping assembly is connected to the support rod.

[0012] By adopting the above technical solution, the height of the clamping roller blank can be adjusted by using the lifting component to drive the clamping component to lift and lower, which makes it easier to lift the roller blank to the precision turning position and the grinding position, and improves the convenience of adjusting the height of the roller blank.

[0013] Preferably, the clamping assembly includes a third motor, a bidirectional lead screw, and two clamping plates. The bidirectional lead screw is rotatably connected to the support rod, and the third motor is fixedly connected to the support rod. The third motor is driven by the bidirectional lead screw. Both clamping plates are slidably connected to the support rod and are threadedly connected to the bidirectional lead screw. The threads connecting the two clamping plates to the bidirectional lead screw have opposite directions. Each clamping plate is rotatably connected to a clamping head, which is used to clamp the printing roller. A second motor is fixedly connected to one of the clamping plates, and the second motor is driven by the clamping head connected to the same clamping plate.

[0014] By adopting the above technical solution, when welding plugs onto steel pipes, the two plugs are first placed on the two clamping heads respectively. Then, driven by the power mechanism and lifting assembly, the two plugs are moved to both sides of the steel pipe. Then, the third motor is started, and the bidirectional lead screw is driven to rotate, which drives the two clamping plates to slide, so that the two clamping plates drive the two plugs to cover the two ends of the steel pipe respectively. Then, the welding plugging device is driven to weld the plugs. During the welding process, the second motor is started to drive the steel pipe and the two plugs to rotate, which can realize the comprehensive welding around the two plugs. At the same time, during the precision turning and grinding process, the second motor is used to drive the plate roll blank to rotate, which can realize the comprehensive precision turning and grinding of the plate roll blank.

[0015] Preferably, the grinding device includes a grinding box, a grinding mechanism, and multiple sets of receiving blocks. The grinding mechanism is connected to the grinding box and is used to grind the printing plate blank placed in the grinding box. The multiple sets of receiving blocks are all connected to the grinding box. The support rod is detachably connected to the electric push cylinder. Each set of receiving blocks can support and fix the support rod.

[0016] By adopting the above technical solution, the support rod is detached from the electric pusher cylinder. During the processing of the printing roller, the grinding time is often long. If the printing roller blank is ground under the drive of the hoisting device, it will seriously affect the processing efficiency of the printing roller. Therefore, after the printing roller is welded and precision-machined, the support rod can be detached from the electric pusher cylinder, so that the clamping assembly holding the printing roller blank is fixed to a set of receiving blocks, and then the printing roller blank is ground. Then the electric pusher cylinder is connected to another support rod equipped with a clamping assembly, and then another set of clamping assemblies is used to weld and precision-machine a new printing roller blank. By using multiple sets of clamping assemblies alternately, the processing efficiency of the printing roller can be significantly improved.

[0017] Preferably, a connecting block is fixedly connected to the piston rod of the electric cylinder, and a insertion groove is provided on the connecting block. A insertion block adapted to the insertion groove is fixedly connected to the support rod. A locking mechanism is provided on the support rod. The locking mechanism is used to lock the support rod onto the connecting block, and the locking mechanism can lock the support rod onto one of the sets of the support blocks.

[0018] By adopting the above technical solution, the support rod can be locked and fixed to the connecting block by using the locking mechanism. When the support rod is placed on one of the set of receiving blocks, the locking mechanism releases the support rod from the connecting block and simultaneously fixes the support rod to the set of receiving blocks on which it is placed, thereby realizing the automatic locking of the support rod.

[0019] Preferably, the locking mechanism includes a sixth motor, a rotating rod, a first gear, a second gear, a first rack, and a second rack. The sixth motor is fixedly connected to the support rod, and the rotating rod is rotatably connected to the support rod. The sixth motor is drively connected to the rotating rod. The first gear and the second gear are both coaxially fixedly connected to the rotating rod. The first rack is slidably connected to the insertion block and meshes with the first gear. The connection block has a locking hole for inserting the first rack. The second rack is slidably connected to the support rod and meshes with the second gear. The support block has a locking hole for inserting the second rack. When the first rack is inserted into the locking hole, the second rack retracts into the support rod.

[0020] By adopting the above technical solution, the rotation of the rotating rod driven by the sixth motor can drive the first gear and the second gear to rotate. The first rack, pushed by the first gear, is inserted into the locking hole of the connecting block, thus fixing the support rod to the connecting block. At this time, the second rack retracts into the support rod. When the support rod is engaged with a set of receiving blocks, the sixth motor is started, causing the main shaft of the sixth motor to rotate in the opposite direction, which in turn drives the first rack to be pulled out of the locking hole. At the same time, the second rack slides outward and is inserted into the locking hole of the receiving block, thus locking the support rod to the receiving block and improving the convenience of locking the support rod.

[0021] Preferably, a pushing mechanism is installed on the grinding box, each set of receiving blocks is slidably connected to the grinding box, and each set of receiving blocks is connected to the pushing mechanism. The grinding mechanism includes multiple sets of grinding components, which are spaced apart along the interval direction of the multiple sets of receiving blocks. Each set of grinding components includes an eighth motor and a grinding wheel. The eighth motor is connected to the grinding box, and the grinding wheel is coaxially fixedly connected to the eighth motor. The roughness of the grinding wheel increases sequentially along the pushing direction of the multiple sets of receiving blocks.

[0022] By adopting the above technical solution, after the printing roller blank is precision machined, the hoisting device first places the clamped printing roller blank on the receiving block above the grinding wheel with the highest roughness, so that the grinding wheel with the highest roughness first performs rough grinding on the printing roller blank. Then, driven by the pushing mechanism, it moves to the top of other grinding wheels for fine grinding in sequence. At the same time, empty receiving blocks are circulated on the grinding wheel with the highest roughness to fill the gap. While ensuring the grinding quality, the grinding efficiency is effectively improved, thereby improving the processing efficiency of the printing roller.

[0023] Preferably, each group of receiving blocks includes two receiving blocks, and the two receiving blocks in the same group are located near the two sides of the grinding box. The pushing mechanism includes two belt conveyors, which are respectively connected to the two inner walls of the grinding box. Multiple receiving blocks near the same inner wall of the grinding box are fixedly connected to the belt conveyors located on the same inner wall of the grinding box.

[0024] By adopting the above technical solution, the receiving blocks located on both sides of the grinding box are fixedly connected to two belt conveyors. The rotation of the belts on the belt conveyors can drive multiple sets of receiving blocks to move in a cycle, thereby achieving cyclic support for the support rod and ensuring the synchronous grinding of multiple printing plate blanks.

[0025] Secondly, this application provides a gravure printing roller processing technology, including the following steps:

[0026] S1: Pipe sawing; according to the design dimensions, cut the steel pipe to be processed.

[0027] S2: Plug processing, pre-forming the plug according to the design dimensions;

[0028] S3: Welding plug. The plug is clamped at both ends of the steel pipe using a hoisting device and then welded using a welding plug device to form the plate roll blank.

[0029] S4: Fine turning. The welded and plugged printing plate blank is directly lifted to the fine turning position using a hoisting device, and then the printing plate blank is fine turned using a fine turning device.

[0030] S5: Grinding. The precision-machined roller blank is directly hoisted to the grinding position using a hoisting device, and the roller blank is ground.

[0031] S6: Electroplating. After cleaning the polished printing roller blank, nickel plating is performed on the outside of the printing roller blank using electroplating equipment, followed by copper plating.

[0032] S7: Engraving, transport the printing roller blank to the electronic engraving machine, and use the electronic engraving machine to engrave the printing roller blank;

[0033] S8: Chrome plating and polishing. Chrome plating is performed on the surface of the engraved printing roller blank using electroplating equipment, and the printing roller is obtained after polishing.

[0034] By adopting the above technical solution, the long steel pipe is first cut to the required length according to the design requirements. After rounding, it is placed on the loading rack. Then, the hoisting device is started to clamp a plug at each end of the steel pipe. Then, the plug welding device is started to weld the two plugs to the two ends of the steel pipe to form the printing roller blank. Then, the hoisting device moves the printing roller blank to the precision turning position and the grinding position respectively for precision turning and grinding. After the processing is completed, the printing roller blank is placed in the temporary storage position. Then, electroplating, engraving and chrome plating are performed respectively. After polishing, the processing of the printing roller is completed.

[0035] In summary, this application includes at least the following beneficial technical effects:

[0036] 1. By setting up the support frame above the welding plug device, the precision turning device, and the grinding device, when processing the printing roller, the plug is first welded to the steel pipe using the clamping of the hoisting device to form the printing roller blank. Then, the hoisting device sequentially lifts the printing roller blank into the precision turning device and the grinding device for precision turning and grinding respectively. This achieves automated processing of the printing roller blank, reduces the possibility of manual handling of the printing roller, reduces the labor cost of printing roller processing, and improves the processing efficiency of the printing roller.

[0037] 2. By disassembling and connecting the support rod to the electric push cylinder, after the printing roller is welded and precision-machined, the support rod can be removed from the electric push cylinder, so that the clamping assembly holding the printing roller blank is fixed to a set of receiving blocks, and then the printing roller blank is ground; then the electric push cylinder is connected to another support rod equipped with a clamping assembly, and then another set of clamping assemblies is used to weld and precision-machine a new printing roller blank. By using multiple sets of clamping assemblies alternately, the processing efficiency of the printing roller can be significantly improved.

[0038] 3. By setting the roughness of each grinding wheel to decrease sequentially, when grinding the printing roller blank, the hoisting device first places the clamped printing roller blank on the receiving block above the grinding wheel with the highest roughness, so that the grinding wheel with the highest roughness first performs rough grinding on the printing roller blank. Then, driven by the pushing mechanism, it moves to the top of other grinding wheels for fine grinding in sequence. At the same time, empty receiving blocks circulate on the grinding wheel with the highest roughness to fill the gap. This effectively improves grinding efficiency while ensuring grinding quality, thereby improving the processing efficiency of the printing roller. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0040] Figure 2 This is a schematic diagram of the hoisting device in an embodiment of this application;

[0041] Figure 3This is a schematic diagram of the clamping mechanism in the embodiments of this application;

[0042] Figure 4 This is a schematic diagram of the precision machining mechanism in the embodiments of this application;

[0043] Figure 5 This is a schematic diagram of the grinding mechanism in the embodiments of this application;

[0044] Figure 6 This is a schematic diagram of the grinding mechanism in the embodiments of this application;

[0045] Figure 7 This is a schematic diagram of the support rod in an embodiment of this application;

[0046] Figure 8 This is a schematic diagram of the locking mechanism in the embodiments of this application;

[0047] Figure 9 This is a schematic diagram of the grinding assembly in an embodiment of this application.

[0048] Reference numerals: 100, Loading rack; 200, Hoisting device; 210, Support frame; 220, Moving plate; 230, Power mechanism; 231, First motor; 232, Third gear; 233, Third rack; 240, Clamping mechanism; 250, Lifting assembly; 251, Electric push cylinder; 252, Connecting block; 260, Support rod; 261, Insertion block; 262, Insertion slot; 270, Clamping assembly; 271, Clamping plate; 272, Third motor; 273, Bidirectional lead screw; 274, Clamping head; 275, Second motor; 300, Welding plug device; 310, Welding seat; 320, First cylinder; 400, Precision turning device; 410, Turning head; 411, Turning disc; 412, Cutting tool; 413, Fifth motor; 420, Moving mechanism; 421, Sliding mechanism 422. Fourth motor; 423. First lead screw; 430. Machine base; 500. Grinding device; 510. Grinding box; 520. Grinding mechanism; 530. Spraying mechanism; 531. Water pump; 532. Inlet pipe; 533. Outlet pipe; 534. Nozzle; 540. Transverse component; 541. Transverse plate; 542. Second lead screw; 543. Seventh motor; 550. Grinding component; 551. Eighth motor; 552. Grinding wheel; 600. Locking mechanism; 610. Sixth motor; 620. Rotating rod; 630. First gear; 640. First rack; 650. Locking hole; 660. Second gear; 670. Second rack; 700. Receiving block; 710. Receiving groove; 720. Locking hole; 800. Pushing mechanism; 810. Belt conveyor. Detailed Implementation

[0049] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0050] This application discloses a gravure printing roller processing equipment.

[0051] Reference Figure 1 A gravure printing roller processing device includes a feeding rack 100, a welding plug device 300, a precision machining device 400, and a grinding device 500 sequentially arranged on the ground. A hoisting device 200 is installed on the ground to hoist the printing rollers sequentially to the processing positions of each process. The feeding rack 100 is fixedly connected to the ground and has a feeding trough, which is used to support and place steel pipe blanks. The feeding trough is a V-shaped groove.

[0052] Reference Figure 1 and Figure 2 The hoisting device 200 includes a support frame 210, which is fixedly connected to the ground. A movable plate 220 is slidably connected to the support frame 210. The movable plate 220 slides along the length of the support frame 210. A power mechanism 230 is installed on the support frame 210. The power mechanism 230 is used to drive the movable plate 220 to slide.

[0053] The power mechanism 230 includes a third rack 233 fixedly connected to the support frame 210, the length direction of the third rack 233 being parallel to the length direction of the support frame 210. A first motor 231 is fixedly connected to the movable plate 220, and a third gear 232 is coaxially fixedly connected to the main shaft of the first motor 231, the third gear 232 meshing with the third rack 233. By driving the third gear 232 to rotate using the first motor 231, the movable plate 220 can be driven in conjunction with the third rack 233.

[0054] Reference Figure 2 and Figure 3 A clamping mechanism 240 is installed on the movable plate 220. The clamping mechanism 240 includes a lifting assembly 250 installed on the movable plate 220. The lifting assembly 250 includes two electric push cylinders 251. The cylinder bodies of the two electric push cylinders 251 are fixedly connected to the movable plate 220. A connecting block 252 is fixedly connected to the piston rod of the two electric push cylinders 251. A support rod 260 is installed on the connecting block 252. The support rod 260 is horizontally arranged, and the length direction of the support rod 260 is parallel to the length direction of the feeding trough.

[0055] The support rod 260 is equipped with a clamping assembly 270, which includes two clamping plates 271 slidably connected to the bottom of the support rod 260. Both clamping plates 271 slide along the length of the support rod 260. A third motor 272 is fixedly connected to the support rod 260. The main shaft of the third motor 272 is coaxially fixedly connected to a bidirectional lead screw 273, which is rotatably connected to the support rod 260. Both clamping plates 271 are threadedly connected to the bidirectional lead screw 273, and the threads connecting the two clamping plates 271 to the bidirectional lead screw 273 have opposite directions of rotation.

[0056] Each clamping plate 271 is rotatably connected to a clamping head 274. The clamping head 274 is located on the side of the clamping plate 271 connected to it that is closer to the other clamping plate 271. The rotation axes of the two clamping heads 274 are parallel to the length direction of the support rod 260. A plug can be placed on each clamping head 274. A second motor 275 is fixedly connected to one of the clamping plates 271. The spindle of the second motor 275 is fixedly connected to the clamping head 274 located on the same clamping plate 271. When processing the gravure printing roller, the steel pipe is first placed in the feeding trough. Then, the operator puts a plug on each of the two clamping heads 274. Then, the piston rods of the two electric push cylinders 251 extend, so that the two clamping heads 274 with plugs are lowered to both ends of the steel pipe in the feeding trough. Then, the third motor 272 drives the bidirectional lead screw 273 to rotate, which drives the two clamping plates 271 to move closer to each other, so that the two clamping plates 271 and the plugs on the two clamping heads 274 are fastened to both ends of the steel pipe. Then, the plug welding device 300 welds the plugs.

[0057] Reference Figure 1 and Figure 2 The welding plug device 300 includes two welding seats 310, located on either side of the loading rack 100. Both welding seats 310 are slidably connected to the loading rack 100, and each welding seat 310 slides along the length of the support frame 210. Two first cylinders 320 are fixedly connected to the loading rack 100, corresponding one-to-one with the two welding seats 310. The piston rod of each first cylinder 320 is fixedly connected to its corresponding welding seat 310. Each welding seat 310 is fixedly connected to a welding torch. Two plugs are clamped at both ends of the steel pipe blank by two clamping plates 271. Then, the two first cylinders 320 are activated, driving the two welding seats 310 to move, which in turn moves the two welding torches to the welding position, thereby welding the plugs onto the steel pipe to form a roll blank.

[0058] Reference Figure 1 and Figure 4The precision turning device 400 includes a base 430, on which a turning head 410 and a moving mechanism 420 are mounted. The moving mechanism 420 includes a sliding seat 421 slidably connected to the base 430. The sliding seat 421 slides along the length of the base 430. A fourth motor 422 is fixedly connected to the base 430. The main shaft of the fourth motor 422 is coaxially fixedly connected to a first lead screw 423. The first lead screw 423 is rotatably connected to the base 430. The rotation axis of the first lead screw 423 is parallel to the length of the base 430. The sliding seat 421 is threadedly connected to the first lead screw 423. The first lead screw 423 drives the sliding seat 421 to move. The turning head 410 is mounted on the sliding seat 421.

[0059] Reference Figure 4 The turning head 410 includes a turning disc 411 rotatably connected to a slide block 421. The rotation axis of the turning disc 411 is parallel to the sliding direction of the slide block 421. Multiple different cutting tools 412 are fixedly connected to the turning disc 411, and the multiple cutting tools 412 are spaced apart along the circumference of the turning disc 411. A fifth motor 413 is fixedly connected to the slide block 421, and the spindle of the fifth motor 413 is fixedly connected to the turning disc 411. After the end cap is welded onto the steel pipe to form the printing roller blank, the piston rods of the two electric push cylinders 251 retract to clamp and lift the printing roller blank. Then, driven by the power mechanism 230, it moves to the turning position. Then, the second motor 275 drives the printing roller blank to rotate, so that the cutting tool 412 on the turning disc 411 can perform precision turning on the printing roller blank. By driving the turning disc 411 to rotate through the fifth motor 413, different cutting tools 412 can be used to turn the printing roller. Depending on the cutting tool 412, the end of the printing roller blank, the rounded corners, and the circumference of the printing roller blank can be turned separately.

[0060] Reference Figure 1 , Figure 5 and Figure 6 The grinding device 500 includes a grinding box 510 with an opening at the top. A grinding mechanism 520 and a spraying mechanism are installed inside the grinding box 510. The grinding mechanism 520 is used to grind the turned roller blank, and the spraying mechanism is used to spray grinding fluid onto the grinding area.

[0061] Reference Figure 3 , Figure 7 and Figure 8When grinding the printing roller blank, the grinding time is often quite long. If the hoisting device 200 keeps the printing roller blank in the grinding position, subsequent welding and turning processes cannot be performed simultaneously, which will seriously reduce the processing efficiency of the printing roller processing equipment. In order to improve the processing efficiency of the printing roller processing equipment, the support rod 260 is detachably connected to the connecting block 252. The support rod 260 is fixedly connected to the insertion block 261, and the connecting block 252 is provided with an insertion groove 262 that matches the insertion block 261. A locking mechanism 600 is installed on the support rod 260. The locking mechanism 600 includes a sixth motor 610 fixedly connected to the support rod 260. The main shaft of the sixth motor 610 is coaxially fixedly connected to a rotating rod 620. The rotating rod 620 is vertically arranged and rotatably connected to the support rod 260 and the insertion block 261. A first gear 630 is coaxially fixedly connected to the rotating rod 620. Two first racks 640 are slidably connected in the insertion block 261. The two first racks 640 are located on opposite sides of the first gear 630 and are meshed with the first gear 630. Two locking holes 650 are opened in the insertion groove 262. The two locking holes 650 are arranged one-to-one with the two first racks 640, and the first rack 640 can be inserted into its corresponding locking hole 650.

[0062] Reference Figure 3 , Figure 5 and Figure 8The grinding box 510 is equipped with multiple sets of receiving blocks 700. The multiple sets of receiving blocks 700 are spaced apart along the length of the grinding roller. Each set of receiving blocks 700 includes two receiving blocks 700. The two receiving blocks 700 in the same set are located near the two sides of the grinding box 510. Each receiving block 700 is provided with a receiving groove 710 for receiving the support rod 260, and each receiving block 700 is provided with a locking hole 720. A second gear 660 is coaxially fixedly connected to the rotating rod 620. Two second gears 660 are slidably connected inside the support rod 260. Two second racks 670 are located on opposite sides of the second gears 660. Both second racks 670 are meshed with the second gears 660. The two second racks 670 are correspondingly set with the locking holes 650 on the two receiving blocks 700 in the same group. The second racks 670 can be inserted into their corresponding locking holes 650. When the two second racks 670 slide outward, the two first racks 640 retract into the insertion block 261. During other processes before grinding the printing roller blank, the two first racks 640, driven by the sixth motor 610, are respectively inserted into the two locking holes 650 of the connecting block 252, so that the support rod 260 is fixedly connected to the connecting block 252, ensuring the clamping and transporting capacity of the printing roller blank. When grinding is required, the roller is moved above one of the receiving blocks 700 by the drive of the power mechanism 230. Then, the support rod 260 is moved down by the drive of the electric push cylinder 251, so that the support rod 260 is engaged into the receiving groove 710 of one of the receiving blocks 700. Then, the sixth motor 610 is started, and the main shaft of the sixth motor 610 rotates to drive the first gear. The first gear 630 and the second gear 660 rotate synchronously, causing the two first racks 640 to be pulled out from the two locking holes 650 under the drive of the first gear 630. At the same time, the two second racks 670 are respectively inserted into the locking holes 720 of the two receiving blocks 700 of the receiving support rod 260 under the drive of the second gear 660. Then, the clamping mechanism 240 is installed on a set of receiving blocks 700, which enables the printing plate blank to be ground. Meanwhile, the power mechanism 230 drives the connecting block 252 to connect with the clamping mechanism 240 on another set of receiving blocks 700, so that the other set of clamping mechanisms 240 can perform welding and precision machining on the new printing plate blank, thereby improving the processing efficiency of the gravure printing plate roller.

[0063] Reference Figure 5 , Figure 6 and Figure 9 In order to further improve the grinding efficiency of the printing plate blank, the grinding box 510 is equipped with a pushing mechanism 800. The pushing mechanism 800 includes two belt conveyors 810. The two belt conveyors 810 are located near the opposite walls of the grinding box 510. Multiple receiving blocks 700 near the same inner wall of the grinding box 510 are fixedly connected to the conveyor belts of the belt conveyors 810.

[0064] The grinding mechanism 520 includes a transverse component 540, which includes a transverse plate 541 slidably connected inside the grinding box 510. The transverse plate 541 slides along the width direction of the grinding box 510. The grinding box 510 is fixedly connected to two seventh motors 543. The main shaft of each seventh motor 543 is coaxially fixedly connected to a second lead screw 542. Both second lead screws 542 are threaded onto the transverse plate 541.

[0065] Multiple grinding components 550 are installed on the transverse plate 541. In this embodiment, three grinding components 550 are provided. The three grinding components 550 are installed at intervals in the grinding box 510. The three grinding components 550 are arranged at intervals along the length direction of the transverse plate 541. The three grinding components 550 correspond one-to-one with three of the multiple sets of receiving blocks 700. Each grinding component 550 includes an eighth motor 551 fixedly connected in the transverse plate 541. The spindle of the eighth motor 551 is coaxially fixedly connected to a grinding wheel 552. The roughness of the three grinding wheels 552 decreases sequentially. When grinding the printing roller blank, the printing roller is first placed on the grinding wheel 552 with the highest roughness. The printing roller blank is first ground using the grinding wheel 552 with the highest roughness. Then, driven by two belt conveyors 810, it passes through the grinding wheels 552 with lower roughness in sequence, so that the grinding wheels 552 with higher roughness perform coarse grinding first, and then fine grinding in sequence. At the same time, it is ensured that each grinding wheel 552 can grind one printing roller blank. While ensuring grinding quality, the grinding efficiency is effectively improved, thereby improving the processing efficiency of the printing roller.

[0066] Reference Figure 6 and Figure 9 The grinding chamber 510 contains grinding fluid. A spraying mechanism 530 is installed on the transverse plate 541. The spraying mechanism 530 is fixedly connected to a water pump 531 on the transverse plate 541. The inlet of the water pump 531 is connected to an inlet pipe 532. The end of the inlet pipe 532 away from the water pump 531 extends into the grinding fluid in the grinding chamber 510. An outlet pipe 533 is fixedly connected to the transverse plate 541 and is connected to the outlet of the water pump 531. Three nozzles 534 are connected to the outlet pipe 533. The three nozzles 534 are arranged one-to-one with three grinding wheels 552. The nozzles 534 are used to spray grinding fluid onto the grinding wheels 552. During the grinding of the printing roller blank, the water pump 531 draws the grinding fluid and then sprays it out from the three nozzles 534 to spray the grinding wheels 552.

[0067] This application also discloses a gravure printing roller processing technology, including the following steps:

[0068] S1: Pipe sawing; according to the design dimensions, cut the steel pipe to be processed.

[0069] S2: Plug processing: Pre-form the plug according to the set dimensions for later use;

[0070] S3: Welding plug: The plug is clamped at both ends of the steel pipe using the hoisting device 200 and welded using the welding plug device 300 to form the plate roll blank;

[0071] S4: Fine machining. The welded and plugged printing plate blank is directly hoisted to the fine machining position using the hoisting device 200. Then, the printing plate blank is carefully machined using various cutting tools 412 on the fine machining device 400.

[0072] S5: Grinding. The precision-machined roller blank is directly lifted to the grinding position using the hoisting device 200, and the roller blank is ground.

[0073] S6: Electroplating. After cleaning the polished printing roller blank, nickel is plated on the outside of the printing roller blank using electroplating equipment, and then copper plating is performed.

[0074] S7: Engraving. Move the printing roller blank to the electronic engraving machine and engrave the printing roller blank using the electronic engraving machine.

[0075] S8: Chrome plating. Chrome plating is performed on the surface of the engraved printing roller blank using electroplating equipment. After polishing, the printing roller is obtained.

[0076] First, the required steel pipes are cut according to the design requirements. After rounding, they are placed on the loading rack 100. Then, the workers place two end caps on the hoisting device 200. The hoisting device 200 is then activated to cover the two end caps on both ends of the steel pipe. Next, the welding device 300 is activated to weld the two end caps to both ends of the steel pipe, thus obtaining the printing roller blank. Then, the hoisting device 200 moves the printing roller blank to the precision turning position and the grinding position for precision turning and grinding respectively. After processing, the printing roller blank is placed in a temporary storage position, and then electroplating, engraving, and chrome plating are performed. After polishing, the finished printing roller is obtained.

[0077] The implementation principle of the gravure printing roller processing equipment and process in this application embodiment is as follows: When processing the printing roller, the sawn steel pipe is first placed in the V-groove on the loading rack 100. Then, the first motor 231 is started, which drives the moving plate 220 to move to the top of the loading rack 100. Then, the operator places two end caps on the two clamping heads 274 respectively. Then, the third motor 272 is started, which drives the two clamping plates 271 to move closer to each other, so that the two welding heads cover the two ends of the steel pipe respectively. Then, the welding guns 330 on the two welding seats 310 are used to weld the two end caps. A printing roller blank is formed by attaching it to a steel pipe. Then, the electric push cylinder 251 drives the printing roller blank to rise. Then, the first motor 231 starts and moves the printing roller blank to the precision turning position. Then, the precision turning device 400 turns the printing roller blank. After the turning is completed, the moving plate 220 is driven to the top of the grinding box 510 so that the grinding mechanism 520 grinds the printing roller blank. The printing roller blank is then processed by the hoisting device 200. Then, the hoisting device 200 lifts the printing roller blank to the placement position to wait for the subsequent electroplating process. This realizes the automated processing of the printing roller blank, reduces the possibility of personnel handling the printing roller, reduces the workload of the staff, and improves the processing efficiency of the printing roller.

[0078] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An engraver for processing a gravure roll, characterized by: The device comprises a feeding frame (100), a lifting device (200), a welding device (300), a finishing device (400) and a grinding device (500), the feeding frame (100), the welding device (300), the finishing device (400) and the grinding device (500) are sequentially arranged on the ground, the feeding frame (100) positions the steel pipe, the welding device (300) is used for welding the plug on the steel pipe, the finishing device (400) is used for finishing the plate roller blank, and the grinding device (500) is used for grinding the plate roller blank; the lifting device (200) comprises a support frame (210), a moving plate (220), a power mechanism (230) and a clamping mechanism (240), the support frame (210) is fixedly connected to the ground, the moving plate (220) is slidably connected to the support frame (210), the power mechanism (230) is connected to the support frame (210), the power mechanism (230) is connected with the moving plate (220) to drive the moving plate (220) to slide, and the clamping mechanism (240) is connected to the moving plate (220); the clamping mechanism (240) is used for clamping two plugs on two ends of the steel pipe; The clamping mechanism (240) is used for clamping two plugs on two ends of the steel pipe; The clamping mechanism (240) comprises a lifting assembly (250), a supporting rod (260) and a clamping assembly (270), the lifting assembly (250) comprises an electric push cylinder (251), the electric push cylinder (251) is fixedly connected to the moving plate (220), the supporting rod (260) is connected with a piston rod of the electric push cylinder (251), the electric push cylinder (251) is used for driving the supporting rod (260) to lift, and the clamping assembly (270) is connected to the supporting rod (260); The grinding device (500) comprises a grinding box (510), a grinding mechanism (520) and a plurality of supporting blocks (700), the grinding mechanism (520) is connected to the grinding box (510), the grinding mechanism (520) is used for grinding the plate roller blank placed in the grinding box (510), and the plurality of supporting blocks (700) are all connected to the grinding box (510); the supporting rod (260) is detachably connected to the electric push cylinder (251), and each group of supporting blocks (700) can support and fix the supporting rod (260); A connecting block (252) is fixedly connected to the piston rod of the electric push cylinder (251), a plug-in groove (262) is formed in the connecting block (252), a plug-in block (261) matched with the plug-in groove (262) is fixedly connected to the supporting rod (260), a locking mechanism (600) is arranged on the supporting rod (260), the locking mechanism (600) is used for locking the supporting rod (260) on the connecting block (252), and the locking mechanism (600) can lock the supporting rod (260) on one group of the supporting blocks (700). The locking mechanism (600) comprises a sixth motor (610), a rotating rod (620), a first gear (630), a second gear (660), a first rack (640) and a second rack (670), the sixth motor (610) is fixedly connected to the supporting rod (260), the rotating rod (620) is rotatably connected to the supporting rod (260), the sixth motor (610) is in transmission connection with the rotating rod (620), the first gear (630) and the second gear (660) are coaxially fixedly connected with the rotating rod (620), the first rack (640) is slidably connected to the plug-in block (261), the first rack (640) is in meshing connection with the first gear (630), the connecting block (252) is provided with a locking hole (650) for inserting the first rack (640), the second rack (670) is slidably connected to the supporting rod (260), the second rack (670) is in meshing connection with the second gear (660), the receiving block (700) is provided with a locking hole (720) for inserting the second rack (670), when the first rack (640) is inserted into the locking hole (650), the second rack (670) is retracted into the supporting rod (260).

2. A processing apparatus for a gravure roll according to claim 1, characterized in that: The upper feeding frame (100) is provided with an upper feeding groove for clamping a steel pipe, and the welding plug device (300) is connected with the upper feeding frame (100).

3. A processing apparatus for a gravure roll according to claim 1, characterized in that: The clamping assembly (270) comprises a third motor (272), a bidirectional screw rod (273) and two clamping plates (271), the bidirectional screw rod (273) is rotatably connected to the supporting rod (260), the third motor (272) is fixedly connected to the supporting rod (260), the third motor (272) is in transmission connection with the bidirectional screw rod (273), two clamping plates (271) are slidably connected to the supporting rod (260), the two clamping plates (271) are in threaded connection with the bidirectional screw rod (273), the threads connected between the two clamping plates (271) and the bidirectional screw rod (273) are in opposite directions, each clamping plate (271) is rotatably connected with a clamping head (274), the two clamping heads (274) are used for clamping the plate roller, one of the clamping plates (271) is fixedly connected with a second motor (275), and the second motor (275) is in transmission connection with the clamping head (274) of the same clamping plate (271).

4. A processing apparatus for a gravure roll according to claim 1, characterized in that: The pushing mechanism (800) is installed on the grinding box (510), each group of the receiving blocks (700) is slidably connected to the grinding box (510), each group of the receiving blocks (700) is connected to the pushing mechanism (800), the grinding mechanism (520) comprises a plurality of groups of grinding assemblies (550), the plurality of groups of grinding assemblies (550) are arranged in the interval direction of the plurality of groups of receiving blocks (700), each group of the grinding assemblies (550) comprises an eighth motor (551) and a grinding wheel (552), the eighth motor (551) is connected to the grinding box (510), the grinding wheel (552) is coaxially fixedly connected to the eighth motor (551), and the grinding wheel (552) increases in roughness in the advancing direction of the plurality of groups of receiving blocks (700).

5. A processing apparatus for a gravure roll according to claim 4, characterized in that: Each group of the receiving blocks (700) comprises two receiving blocks (700), the two receiving blocks (700) in the same group are located near the two sides of the grinding box (510), the pushing mechanism (800) comprises two belt conveyors (810), the two belt conveyors (810) are connected to the two inner walls of the grinding box (510), respectively, and the plurality of receiving blocks (700) near the same inner wall of the grinding box (510) are fixedly connected to the belt conveyor (810) on the same inner wall of the grinding box (510).

6. A process for processing a gravure roll characterized by: The method comprises the following steps: S1: sawing pipe, according to the design size, sawing the steel pipe to be processed; S2: plug processing, according to the design size, the plug is prefabricated; S3: welding, using the lifting device (200) to clamp the plug at both ends of the steel pipe, and welding through the welding device (300) to form the roller blank; S4: finish turning, using the lifting device (200) to directly lift the welded roller blank to the finish turning position, and then using the finish turning device (400) to finish turning the roller blank; S5: grinding, using the lifting device (200) to directly lift the finished roller blank to the grinding position, and grinding the roller blank; S6: electroplating, after cleaning the ground roller blank, using the electroplating equipment to perform nickel plating treatment on the outside of the roller blank, and then performing copper plating treatment; S7: engraving, transporting the roller blank to the electronic engraver, and using the electronic engraver to engrave the roller blank; S8: chrome plating and polishing, using the electroplating equipment to perform chrome plating treatment on the surface of the engraved roller blank, and obtaining the roller after polishing.

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