Printing plate roller welding device

Abstract

The invention is suitable for the technical field of welding devices, and provides a printing plate roller welding device which comprises a device body, a movable sliding base, a first supporting frame, a second supporting frame, a welding machine table and welding equipment and further comprises a rotating mechanism, a centering clamping mechanism and a centering alignment mechanism. The centering and aligning mechanism comprises a mounting assembly, a mounting support, a centering and aligning assembly and an adjusting assembly, and the centering and aligning mechanism can complete rapid centering of the printing plate roller and the roller core, ensure the coaxiality of the printing plate roller and the roller core and reduce manual intervention through a movable sliding seat and a rotating mechanism, and can also drive the end cover and the printing plate roller to intermittently rotate, so that the precision of the printing plate roller is improved. The centering and clamping mechanism can complete centering and clamping of the printing plate roller and ensure that the two ends of the printing plate roller are located at the concentric position through a movable sliding base and a rotating mechanism, and the clamped printing plate roller can be driven to rotate circumferentially. And circumferential continuous welding of the end part of the printing plate roller by welding equipment is realized.

Description

Technical Field

[0001] The invention belongs to the technical field of welding devices, and in particular relates to a printing plate roller welding device. Background Art

[0002] The printing plate roller is a key component in the printing machine. It is directly involved in the transfer of ink during the printing process. The roller body of the printing plate roller is generally made of metal materials, such as steel or aluminum alloy, which has good strength and rigidity and can maintain a stable shape under high-speed rotation and pressure. The printing plate roller is usually composed of multiple parts, such as the roller body, the sleeve and the roller core, and these parts generally need to be welded together by a welding device to form an integral structure.

[0003] The existing printing plate roller welding device includes a base, side plates, a top plate, a welding machine and an automatic welding gun. A steel roller is arranged between two groups of automatic welding guns. The bottom of the steel roller abuts against an arc-shaped support plate. The steel roller is placed on the arc-shaped support plate, and the pull block is pulled to drive the arc-shaped clamping plate to move. One end of the roller core is inserted into the positioning hole, and the pull block is released. The anti-slip pad fixes it. At this time, the center of the steel roller and the center of the roller core are located on the same horizontal line. The output shaft of the second motor rotates to drive the threaded block to move so that the two groups of movable plates are close to each other, so that one end of the roller core abuts against one end of the steel roller, and the automatic welding gun welds them. The output shaft of the first motor rotates to drive the fixed plate to rotate so that the steel roller and the roller core rotate synchronously for welding.

[0004] Although the existing device can realize continuous welding of steel rollers and roller cores, when centering the steel rollers and roller cores, positioning holes and anti-slip pads are used to fix the roller cores, and arc-shaped support plates are used to support the steel rollers; however, this structure cannot ensure that the axis between the two is in the same position; therefore, in actual operation, workers are required to manually adjust the height of the arc-shaped support plate many times to achieve the ideal centering effect, which is not only time-consuming and labor-intensive, but also easily causes eccentricity between the steel rollers and the roller cores, thereby affecting the welding quality.

[0005] Therefore, in view of the above situation, it is urgent to develop a printing plate roller welding device to overcome the shortcomings in current practical applications. Summary of the invention

[0006] In view of the shortcomings of the prior art, an object of the embodiments of the present invention is to provide a printing plate roller welding device to solve the problems in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A printing plate roller welding device, comprising a device body, on which two movable slides are symmetrically slidably mounted, and both ends of the two movable slides are vertically fixed with a first support frame and a second support frame, a welding machine is slidably mounted on one side of the device body, and a welding device is mounted on the welding machine, and further comprising:

[0009] A rotating mechanism, wherein the rotating mechanism is mounted on the movable slide, and one end of the rotating mechanism is rotatably connected to the first support frame and the second support frame respectively;

[0010] A centering clamping mechanism, wherein the centering clamping mechanism is rotatably mounted on two support frames 2, and the two support frames 2 and the centering clamping mechanisms thereon are close to each other, one side of the centering clamping mechanism and the support frame 2 are both provided with openings, and the centering clamping mechanism is connected to one end of the rotating mechanism;

[0011] A centering and alignment mechanism, the centering and alignment mechanism comprises a mounting assembly, a mounting support, a centering and alignment assembly and an adjustment assembly, the mounting assembly is rotatably mounted on a support frame one and is connected to one end of a rotating mechanism, the mounting assembly is concentric with the centering clamping mechanism, the two support frames one and the mounting assemblies thereon are far away from each other, three mounting supports are equidistantly distributed on the inner circumference of the mounting assembly, the three mounting supports are rotatably mounted with centering and alignment assemblies, and the centering and alignment assemblies are inclined to the support frame one, the two ends of the centering and alignment assembly extend to the left and right sides of the mounting assembly respectively, one ends of the three centering and alignment assemblies are close to each other, the other ends of the three centering and alignment assemblies are far away from each other, and the ends of the three centering and alignment assemblies far away from each other are all mounted with adjustment assemblies.

[0012] As a further technical solution of the present invention, the centering and alignment assembly includes a leg one, a mounting shaft, a roller and a leg two, one end of the leg one is rotatably mounted on the mounting support via the mounting shaft, a torsion spring is installed between the mounting shaft and the inner wall of the mounting assembly, a roller is movably mounted on the other end of the leg one, the roller is in contact with the outer wall of the roller core, one end of the leg two is connected to one end of the leg one, and an adjustment assembly is installed on the other end of the leg two.

[0013] As a further technical solution of the present invention, the length of leg one is smaller than that of leg two, and the ends of leg one and leg two that are connected to each other are circumferentially provided with connecting holes, and leg two is connected to leg one as a whole through the connecting holes and connecting screws.

[0014] As a further technical solution of the present invention, the mounting assembly includes an annular plate 2, an annular rack 2 and a gear 2. The annular plate 2 is rotatably mounted on a support frame 1. Mounting supports are circumferentially equidistantly fixed on the inner wall of the annular plate 2. An annular rack 2 is fixed on the outer wall of one end of the annular plate 2. The annular rack 2 is meshed with a gear 2 rotatably mounted on the support frame 1, and the gear 2 is connected to a rotating mechanism.

[0015] As a further technical solution of the present invention, the adjustment assembly includes a connecting shaft, an adjustment column, a sliding column, a second splint and a spring. The connecting shaft is rotatably installed on the second leg, an adjustment column is vertically fixed to the middle of the connecting shaft, a sliding column is vertically slidably installed on one end of the adjustment column, a second splint is fixed on one end of the sliding column, a spring is sleeved on the outer wall of the sliding column, and both ends of the spring are respectively connected to the second splint and the adjustment column.

[0016] As a further technical solution of the present invention, the centering clamping mechanism includes an annular plate 1, an annular rack 1, a gear 1, a pneumatic telescopic member, a clamping plate 1 and a mounting groove, the annular plate 1 is rotatably mounted on the support frame 2, an annular rack 1 is fixed on the outer wall of the annular plate 1, one side of the annular plate 1 and the annular rack 1 are both provided with openings, the gear 1 is symmetrically and rotatably arranged on one side of the support frame 2, the two gears 1 are respectively meshed with the two sides of the reversing rack 1, and the two gears 1 are both connected to the rotating mechanism, the annular plate is equidistantly provided with mounting grooves in a circumferential direction, a pneumatic telescopic member is vertically mounted in the mounting groove, the output end of the pneumatic telescopic member faces the center of the annular plate 1, and a clamping plate 1 is fixed on the output end of the pneumatic telescopic member.

[0017] As a further technical solution of the present invention, the arc length between the meshing points of the annular rack 1 and the two gears 1 is greater than the arc length of the opening of the arc rack 1.

[0018] As a further technical solution of the present invention, the rotating mechanism includes a rotating motor, a transmission member and a transmission shaft. The rotating motor is fixed on a movable slide. The transmission shaft is symmetrically mounted on support frame one and support frame two for rotation. One end of the two transmission shafts are respectively fixedly connected to two gear ones, and the other end of one transmission shaft is fixedly connected to gear two. The other ends of the two transmission shafts are connected to the output end of the rotating motor through the transmission member.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The centering clamping mechanism can not only complete the centering clamping of the printing plate roller by working in coordination with the movable slide and the rotating mechanism, ensuring that the two ends of the printing plate roller are in concentric positions, but also ensure that the position on the printing plate roller that needs to be welded is exposed within the overlapping opening range of the support frame 2 and the centering clamping mechanism, so that the welding equipment can weld the printing plate roller in the axial direction through the opening, thereby improving the welding quality and welding efficiency; it can also drive the clamped printing plate roller to rotate in a circle, so as to realize the continuous circumferential welding of the end of the printing plate roller by the welding equipment, thereby ensuring the welding quality of the end cover and the printing plate roller, thereby improving the welding efficiency and welding quality of the welding device;

[0021] The centering and alignment mechanism, through the coordinated work with the movable slide and the rotating mechanism, can not only complete the rapid centering of the printing plate roller and the roller core, ensure the coaxiality of the printing plate roller and the roller core, reduce manual intervention, and shorten the centering time of the roller core and the printing plate roller; it can also drive the end cover and the printing plate roller located inside it to rotate intermittently, so that the welding equipment can achieve preliminary spot welding of the end cover and the end of the printing plate roller, ensuring that the end cover can be preliminarily connected to the end of the printing plate roller, and facilitating the subsequent welding equipment to complete the circumferential continuous welding of the end of the printing plate roller with the cooperation of the centering clamping mechanism, thereby further improving the welding efficiency and welding quality of the welding device.

[0022] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a printing plate roller welding device from a first viewing angle provided in an embodiment of the present invention.

[0024] Figure 2 A schematic structural diagram of a printing plate roller welding device from a second viewing angle provided in an embodiment of the present invention.

[0025] Figure 3 for Figure 1 Schematic diagram of the structure of the movable slide, rotating mechanism, centering clamping mechanism and centering alignment mechanism.

[0026] Figure 4 for Figure 3 Structural side view of the movable slide, rotating mechanism, centering clamping mechanism and centering alignment mechanism.

[0027] Figure 5 for Figure 3 Schematic diagram of the structure of the mounting assembly, mounting support, centering and alignment assembly and adjustment assembly.

[0028] Figure 6 for Figure 5 Schematic diagram of the structure of the centering and alignment components and the adjustment components.

[0029] Figure 7 for Figure 6 Structural exploded view of the centering alignment component and the adjustment component.

[0030] Figure 8 for Figure 3 Structural exploded diagram of the centering clamping mechanism.

[0031] Figure numerals: 100-device body, 200-welding machine, 300-welding equipment, 400-movable slide, 410-support frame 1, 420-support frame 2, 500-rotating mechanism, 510-rotating motor, 520-transmission member, 530-transmission shaft, 600-centering clamping mechanism, 610-annular plate 1, 620-annular rack 1, 630-gear 1, 640-pneumatic telescopic member, 650-clamping plate 1, 660-mounting groove, 670-opening , 700-centering and alignment mechanism, 710-installation assembly, 711-annular plate two, 712-annular rack two, 713-gear two, 720-installation support, 730-centering and alignment assembly, 731-leg one, 732-installation shaft, 733-roller, 734-leg two, 735-connecting hole, 736-connecting screw, 740-adjustment assembly, 741-connecting shaft, 742-adjustment column, 743-sliding column, 744-plywood two, 745-spring. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0034] like Figures 1 to 8 As shown, a printing plate roller welding device provided as an embodiment of the present invention includes a device body 100, on which two movable slides 400 are symmetrically slidably installed, and the two movable slides 400 are connected to each other through a mobile device, and both ends of the two movable slides 400 are vertically fixed with a support frame 1 410 and a support frame 2 420, and the mobile device can simultaneously drive the two movable slides 400 to approach or move away from each other, and a welding machine 200 is slidably installed on one side of the device body 100, and a regulating mechanism for adjusting the welding position and welding angle of the welding device 300 is installed on the welding machine 200, and the regulating mechanism can adopt a robot arm to realize multi-dimensional and multi-angle adjustment of the welding device 300, and also includes:

[0035] A rotating mechanism 500, wherein the rotating mechanism 500 is mounted on the movable slide 400, and one end of the rotating mechanism 500 is rotatably connected to the support frame 1 410 and the support frame 2 420 respectively;

[0036] A centering clamping mechanism 600, wherein the centering clamping mechanism 600 is rotatably mounted on two support frames 420, and the two support frames 420 and the centering clamping mechanisms 600 thereon are close to each other, one side of the centering clamping mechanism 600 and the support frame 420 is provided with an opening 670, and the centering clamping mechanism 600 is connected to one end of the rotating mechanism 500;

[0037] A centering and alignment mechanism 700, the centering and alignment mechanism 700 comprises a mounting assembly 710, a mounting support 720, a centering and alignment assembly 730 and an adjustment assembly 740, the mounting assembly 710 is rotatably mounted on a support frame 410 and is connected to one end of a rotating mechanism 500, the mounting assembly 710 is concentric with a centering and clamping mechanism 600, the two support frames 410 and the mounting assemblies 710 thereon are far away from each other, three mounting supports 720 are equidistantly distributed in the inner circumferential direction of the mounting assembly 710, the three mounting supports 720 are all rotatably mounted with a centering and alignment assembly 730, and the centering and alignment assembly 730 is inclined to the support frame 410, the two ends of the centering and alignment assembly 730 extend to the left and right sides of the mounting assembly 710 respectively, one end of the three centering and alignment assemblies 730 are close to each other, the other ends of the three centering and alignment assemblies 730 are far away from each other, and the ends of the three centering and alignment assemblies 730 far away from each other are all mounted with an adjustment assembly 740;

[0038] When the printing plate roller needs to be welded in the axial direction, the centering clamping mechanisms 600 on the two movable slides 400 can be close to each other and center the outer walls of the two ends of the printing plate roller to ensure that the two ends of the printing plate roller are in a concentric position, ensure the coaxiality of the printing plate roller during welding, improve the welding efficiency and welding quality of the printing plate roller, and at the same time, ensure that the position on the printing plate roller that needs to be welded is exposed within the range of the overlapping opening 670 on the support frame 2 420 and the centering clamping mechanism 600, so that the welding equipment 300 can weld the printing plate roller in the axial direction through the opening 670, thereby improving the welding quality and welding efficiency;

[0039] When it is necessary to weld the end cap with the roller core to the end portions of the printing plate roller as a whole, the two centering clamping mechanisms 600 release the clamping of the printing plate roller and support it, and the centering alignment components 730 and the adjustment components 740 on the two movable slides 400 are close to each other. When the ends of the three centering alignment components 730 on the same movable slide 400 that are close to each other are in contact with the roller core at the same time, the roller core will drive one ends of the three centering alignment components 730 to move away from each other at the same time and complete the deflection work, and one end of the three centering alignment components 730 drives their respective other ends to approach each other, and the other ends of the three centering alignment components 730 drive their respective adjustment components 740 to approach each other. The adjustment components 740 can complete the centering clamping of the outer wall of the printing plate roller by approaching each other, so that the printing plate roller can be quickly adjusted to a position that is concentric with the roller core, thereby completing the rapid centering of the printing plate roller and the roller core, ensuring the coaxiality of the printing plate roller and the roller core, reducing manual intervention, shortening the centering time of the roller core and the printing plate roller, and improving the welding efficiency of the welding device, and one end of the three centering and alignment components 730 can resist the end cover, so that the end cover can fit with the end of the printing plate roller, and the concentricity of the printing plate roller and the roller core can ensure that the outer wall of the end cover can fully and effectively block the end of the printing plate roller, ensuring the connection quality between the two;

[0040] Since the end of the printing plate roller needs to be welded continuously in the circumference, and although the three centering and alignment components 730 can cooperate with the rotating mechanism 500 to drive the printing plate roller and the roller core to rotate synchronously, they will hinder the full welding of the end of the printing plate roller. Therefore, before the end of the printing plate roller is welded in the circumference, the rotating mechanism 500 drives the installation component 710 to rotate intermittently, and the installation component 710 drives the centering and alignment components 730 and the adjustment components 740 to rotate intermittently through the installation support 720, so that the welding equipment 300 can perform preliminary spot welding on the end cover and the end of the printing plate roller to ensure that the end cover can be preliminarily connected to the end of the printing plate roller; at this time By changing the distance between the two movable slides 400, the centering and alignment components 730 on the two movable slides 400 are moved away from each other, so that the end of the printing plate roller and the end cover can be moved to the outside of the centering and alignment component 730, and the centering clamping mechanism 600 releases the support state of the printing plate roller and completes the centering clamping of the printing plate roller. The rotating mechanism 500 drives the centering clamping mechanism 600 to rotate in a circle on the support frame 420, and the centering clamping mechanism 600 drives the printing plate roller and the end cover to rotate in a circle, so that the welding equipment 300 can achieve continuous circumferential welding of the end of the printing plate roller, ensuring the welding quality of the end cover and the printing plate roller;

[0041] Moreover, during the welding process, the printing plate roller does not need to be removed, and continuous welding of the ends of the axis of the printing plate roller can be completed, thereby realizing the versatility of the welding device, reducing the welding time of the printing plate roller, and improving the welding efficiency and welding quality of the welding device.

[0042] In a preferred embodiment, the mobile device preferentially adopts a moving structure composed of a servo motor and a double-rotation screw and other components. The double-rotation screw can drive the two moving slides 400 to move closer to or away from each other by rotating, which not only allows the centering clamping mechanism 600 to center and clamp the two ends of the printing plate roller, so that the welding equipment 300 can continuously weld the axial direction of the printing plate roller, but also allows the centering alignment mechanism 700 to complete the centering of the roller core and the printing plate roller, so that the welding equipment 300 can perform preliminary spot welding and circumferential continuous welding on the end of the printing plate roller.

[0043] like Figures 3 to 7 As shown, as a preferred embodiment of the present invention, the centering and alignment assembly 730 includes a leg 1 731, a mounting shaft 732, a roller 733 and a leg 2 734, one end of the leg 1 731 is rotatably mounted on the mounting support 720 via the mounting shaft 732, a torsion spring is installed between the mounting shaft 732 and the inner wall of the mounting assembly 710, a roller 733 is movably installed on the other end of the leg 1 731, the roller 733 is in contact with the outer wall of the roller core, one end of the leg 2 734 is connected to one end of the leg 1 731, and an adjustment assembly 740 is installed on the other end of the leg 2 734.

[0044] The length of the leg one 731 is smaller than that of the leg two 734, and the ends of the leg one 731 and the leg two 734 that are connected to each other are circumferentially provided with connecting holes 735, and the leg two 734 is connected to the leg one 731 as a whole through the connecting hole 735 and the connecting screw 736, and the connecting screw 736 can not only connect the leg two 734 and the leg one 731 as a whole by cooperating with the connecting hole 735, but also change the angle between the leg two 734 and the leg one 731 in the initial state according to actual needs, so that when the leg one 731 drives the leg two 734 and the adjustment component 740 thereon to deflect, the adjustment component 740 can fully and effectively contact the outer wall of the printing plate roller, so as to meet the requirements of fast and accurate centering of different types of roller cores and printing plate rollers, expand the application range of the welding device, and improve the welding efficiency and welding quality of the welding device.

[0045] In the initial state, the torsion spring drives the installation shaft 732 to rotate through its own elastic force, so that the overall structure of the support leg 1 731 and the support leg 2 734 is inclined to the support frame 1 410, the three rollers 733 on the same movable slide 400 are close to each other, and the three adjustment components 740 on the same movable slide 400 are away from each other;

[0046] When the roller core is located between the three rollers 733 and its outer walls are in conflict with the outer walls of the three rollers 733, the three rollers 733 can drive the three legs 1 731 to deflect synchronously through the elastic cooperation with the torsion spring, and can also complete the centering clamping of the roller core. The three legs 1 731 drive the three legs 2 734 to deflect synchronously, so that the adjustment components 740 on the three legs 2 734 all move toward the direction close to the outer wall of the printing plate roller and clamp its outer wall. Due to the supporting effect of the centering clamping mechanism 600 on the printing plate roller at this time, the three adjustment components 740 can make the three The adjustment component 740 completes the centering clamping of the printing plate roller, so that the printing plate roller can be quickly adjusted to a position that is concentric with the roller core, thereby completing the rapid centering of the printing plate roller and the roller core, ensuring the coaxiality of the printing plate roller and the roller core, reducing manual intervention, shortening the centering time of the roller core and the printing plate roller, and improving the welding efficiency of the welding device. In addition, one end of the three centering and alignment components 730 can resist the end cover, so that the end cover can fit with the end of the printing plate roller, and the concentricity of the printing plate roller and the roller core can ensure that the outer wall of the end cover can fully and effectively block the end of the printing plate roller, ensuring the connection quality between the two.

[0047] like Figures 3 to 7 As shown, as a preferred embodiment of the present invention, the mounting assembly 710 includes an annular plate 711, an annular rack 712 and a gear 713. The annular plate 711 is rotatably mounted on the support frame 410. The inner wall of the annular plate 711 is circumferentially equidistantly fixed with mounting supports 720. An annular rack 712 is fixed on the outer wall of one end of the annular plate 711. The annular rack 712 is meshed with a gear 713 rotatably mounted on the support frame 410. The gear 713 is connected to the rotating mechanism 500.

[0048] When the welding equipment 300 needs to perform spot welding on the end of the printing plate roller, the rotating mechanism 500 drives the gear 2 713 to rotate intermittently, the gear 2 713 drives the annular rack 2 712 and the annular plate 2 711 to rotate intermittently, and the annular plate 2 711 drives the centering and alignment assembly 730 and the adjustment seat assembly to rotate intermittently through the mounting support 720, so that the welding equipment 300 can achieve preliminary spot welding on the end of the printing plate roller, which is convenient for the subsequent withdrawal of the centering and alignment assembly 730 for continuous circumferential welding.

[0049] like Figures 3 to 7As shown, as a preferred embodiment of the present invention, the adjustment assembly 740 includes a connecting shaft 741, an adjustment column 742, a sliding column 743, a second splint 744 and a spring 745. The connecting shaft 741 is rotatably installed on the second leg 734. An adjustment column 742 is vertically fixed to the middle of the connecting shaft 741. A sliding column 743 is vertically slidably installed at one end of the adjustment column 742. A second splint 744 is fixed at one end of the sliding column 743. A spring 745 is sleeved on the outer wall of the sliding column 743. The two ends of the spring 745 are respectively connected to the second splint 744 and the adjustment column 742.

[0050] The three legs 2 734 simultaneously drive their respective clamping plates 2 744 to move toward the outer wall of the printing plate roller. The three clamping plates 2 744 can center and clamp the outer wall of the printing plate roller by synchronous movement, so that the printing plate roller and the roller core are concentric, ensuring the coaxiality between the two.

[0051] During the movement of the second clamping plate 744, one side of the second clamping plate 744 will first contact the outer wall of the printing plate roller, and the rotation design of the connecting shaft 741 can help the second clamping plate 744 to deflect during the contact with the printing plate roller, so that it can effectively contact the outer wall of the printing plate roller, thereby increasing the contact area between the two, improving the connection strength between the two, and thus improving the coaxiality between the printing plate roller and the roller core;

[0052] The spring 745 can buffer the clamping force of the second clamp plate 744, so that while the second clamp plate 744 effectively clamps the outer wall of the printing plate roller, the three rollers 733 can also effectively clamp the outer wall of the roller core, further ensuring the coaxiality between the two.

[0053] In a preferred embodiment, the second clamping plate 744 preferably adopts an arc-shaped plate structure.

[0054] like Figure 3 , Figure 4 and Figure 8As shown, as a preferred embodiment of the present invention, the centering clamping mechanism 600 includes an annular plate 610, an annular rack 620, a gear 630, a pneumatic telescopic member 640, a clamping plate 650 and a mounting groove 660. The annular plate 610 is rotatably mounted on the support frame 420. An annular rack 620 is fixed on the outer wall of the annular plate 610. An opening 670 is provided on one side of the annular plate 610 and the annular rack 620. The gear 630 is opposite to the centering clamping mechanism 600. It is rotatably arranged on one side of the support frame 420, the two gears 630 are respectively meshed with the two sides of the reversing rack 1, and the two gears 630 are connected to the rotating mechanism 500, the annular plate 610 is circumferentially equidistantly provided with mounting grooves 660, and a pneumatic telescopic member 640 is vertically installed in the mounting groove 660, the output end of the pneumatic telescopic member 640 faces the center of the annular plate 610, and a clamping plate 650 is fixed on the output end of the pneumatic telescopic member 640.

[0055] The arc length between the meshing points of the annular rack 620 and the two gears 630 is greater than the arc length of the arc rack opening 670. In this way, during the rotation of the annular rack 620, it can be ensured that at least one gear 630 can effectively mesh with the annular rack 620, ensuring the continuous circumferential movement of the annular rack 620, thereby realizing continuous circumferential welding of the printing plate roller.

[0056] When the printing plate roller needs to be centered and clamped, the three pneumatic telescopic parts 640 are synchronously telescoped and driven to synchronously move the three clamping plates 650 toward the printing plate roller. Due to the principle of three-point contact centering, the three clamping plates 650 on the two movable slides 400 can center and clamp the outer walls of the two ends of the printing plate roller, ensuring that the two ends of the printing plate roller are in a concentric position, ensuring the coaxiality of the printing plate roller during welding, and improving the welding efficiency and welding quality of the printing plate roller. At the same time, it is ensured that the position on the printing plate roller that needs to be welded is exposed within the range of the overlapping openings 670 on the support frame 2 420, the annular plate 1 610 and the annular rack 1 620, so that the welding equipment 300 can weld the printing plate roller in the axial direction through the opening 670, thereby improving the welding quality and welding efficiency.

[0057] When it is necessary to continuously weld the end of the printing plate roller, the centering clamping mechanism 600 first releases the support state of the printing plate roller, and then completes the centering clamping of the printing plate roller, and the rotating mechanism 500 drives the two gears 630 to rotate synchronously in the same direction. The two gears 630 can drive the annular plate 610 to rotate continuously on the support frame 420 through the annular rack 620, so that the annular plate 610 drives the printing plate roller and the end cover to rotate in a circle through the pneumatic telescopic part 640 and the clamping plate 650, thereby realizing the continuous circumferential welding of the end of the printing plate roller by the welding equipment 300, ensuring the welding quality of the end cover and the printing plate roller.

[0058] In a preferred embodiment, the pneumatic telescopic member 640 preferably adopts a pneumatic telescopic cylinder and a telescopic rod;

[0059] The clamping plate 650 preferably adopts an arc-shaped plate structure.

[0060] like Figures 3 to 8 As shown, as a preferred embodiment of the present invention, the rotating mechanism 500 includes a rotating motor 510, a transmission member 520 and a transmission shaft 530, the rotating motor 510 is fixed on the movable slide 400, the transmission shaft 530 is symmetrically rotatably mounted on the support frame 1 410 and the support frame 2 420, one end of the two transmission shafts 530 are respectively fixedly connected to the two gears 1 630, the other end of one transmission shaft 530 is fixedly connected to the gear 2 713, and the other ends of the two transmission shafts 530 are connected to the output end of the rotating motor 510 through the transmission member 520.

[0061] The rotating motor 510 drives the transmission shaft 530 to rotate intermittently or continuously through the transmission member 520, so that the transmission shaft 530 can not only drive the gear 2 713 to rotate intermittently, thereby driving the printing plate roller located in the centering and alignment component 730 to rotate intermittently, and realize the preliminary spot welding of the end of the printing plate roller by the welding equipment 300, but also drive the two gears 1 630 to rotate continuously, thereby driving the printing plate roller located inside the centering clamping mechanism 600 to rotate continuously, and realize the circumferential continuous welding of the end of the printing plate roller by the welding equipment 300, thereby meeting the welding requirements of the printing plate roller and improving the welding efficiency of the printing plate roller.

[0062] In a preferred embodiment, the transmission member 520 preferably adopts a transmission structure composed of three synchronous wheels and a synchronous belt.

[0063] The working principle of the present invention is:

[0064] When the printing plate roller needs to be welded in the axial direction, the centering clamping mechanisms 600 on the two movable slides 400 can approach each other and center the outer walls of the two ends of the printing plate roller to ensure that the two ends of the printing plate roller are in concentric positions, ensuring the coaxiality of the printing plate roller during welding, and at the same time, ensuring that the position on the printing plate roller that needs to be welded is exposed within the range of the overlapping opening 670 on the support frame 2 420 and the centering clamping mechanism 600, so that the welding equipment 300 can weld the printing plate roller in the axial direction through the opening 670;

[0065] In the initial state, the torsion spring drives the installation shaft 732 to rotate through its own elastic force, so that the overall structure of the support leg 1 731 and the support leg 2 734 is inclined to the support frame 1 410, the three rollers 733 on the same movable slide 400 are close to each other, and the three adjustment components 740 on the same movable slide 400 are away from each other; when it is necessary to weld the end cap with the roller core to the end portions of the printing plate roller as a whole, the two centering clamping mechanisms 600 release the clamping of the printing plate roller and support it, and the centering alignment components 730 and the adjustment components 740 on the two movable slides 400 are close to each other;

[0066] When the roller core is located between the three rollers 733 and its outer walls are in conflict with the outer walls of the three rollers 733, the three rollers 733 can drive the three legs 1 731 to deflect synchronously through the elastic cooperation with the torsion spring, and can also complete the centering clamping of the roller core, and the three legs 1 731 drive the three legs 2 734 to deflect synchronously, so that the adjustment components 740 on the three legs 2 734 are all moved in the direction close to the outer wall of the printing plate roller and clamp its outer wall, and because the centering clamping mechanism 600 supports the printing plate roller at this time, the three adjustment components 740 can complete the centering clamping of the printing plate roller through synchronous deflection, so that the printing plate roller can be quickly adjusted to the same center position as the roller core, thereby completing the rapid centering of the printing plate roller and the roller core, ensuring the coaxiality of the printing plate roller and the roller core, reducing manual intervention, and shortening the centering time of the roller core and the printing plate roller;

[0067] Since the end of the printing plate roller needs to be circumferentially welded continuously, and although the three centering and alignment components 730 can cooperate with the rotating mechanism 500 to drive the printing plate roller and the roller core to rotate synchronously, they will hinder the full welding of the end of the printing plate roller. Therefore, before the circumferential welding of the end of the printing plate roller is performed, the rotating mechanism 500 drives the second gear 713 to rotate intermittently, and the second gear 713 drives the second ring rack 712 and the second ring plate 711 to rotate intermittently, and the second ring plate 711 drives the centering and alignment components 730 and the adjustment seat components to rotate intermittently through the mounting support 720, so that the welding equipment 300 can perform preliminary spot welding on the end cover and the end of the printing plate roller to ensure that the end cover can be preliminarily connected to the end of the printing plate roller;

[0068] At this time, by changing the distance between the two movable slides 400, the centering and alignment components 730 on the two movable slides 400 are moved away from each other, so that the end of the printing plate roller and the end cover can be moved to the outside of the centering and alignment component 730, and the centering clamping mechanism 600 first releases the support state of the printing plate roller, and then completes the centering clamping of the printing plate roller, and the rotating mechanism 500 drives the two gears 1 630 to rotate synchronously in the same direction. The two gears 1 630 can drive the annular plate 1 610 to rotate continuously on the support frame 2 420 through the annular rack 1 620, so that the annular plate 1 610 drives the printing plate roller and the end cover to rotate in a circle through the pneumatic telescopic member 640 and the clamping plate 1 650, thereby realizing the continuous circumferential welding of the end of the printing plate roller by the welding equipment 300, ensuring the welding quality of the end cover and the printing plate roller;

[0069] In addition, during the welding process, the printing plate roller does not need to be dismantled, and the ends of the axis of the printing plate roller can be continuously welded, thereby realizing the multifunctionality of the welding device and reducing the welding time of the printing plate roller.

[0070] The above is the working principle of the printing plate roller welding device.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A printing plate roller welding device, comprising a device body, on which two movable slides are symmetrically slidably mounted, and both ends of the two movable slides are vertically fixed with a support frame 1 and a support frame 2, a welding machine is slidably mounted on one side of the device body, and a welding device is mounted on the welding machine, characterized in that: Also includes: A rotating mechanism, wherein the rotating mechanism is mounted on the movable slide, and one end of the rotating mechanism is rotatably connected to the first support frame and the second support frame respectively; A centering clamping mechanism, wherein the centering clamping mechanism is rotatably mounted on two support frames 2, and the two support frames 2 and the centering clamping mechanisms thereon are close to each other, one side of the centering clamping mechanism and the support frame 2 are both provided with openings, and the centering clamping mechanism is connected to one end of the rotating mechanism; A centering and alignment mechanism, the centering and alignment mechanism comprises a mounting assembly, a mounting support, a centering and alignment assembly and an adjustment assembly, the mounting assembly is rotatably mounted on a support frame one and is connected to one end of a rotating mechanism, the mounting assembly is concentric with the centering clamping mechanism, the two support frames one and the mounting assemblies thereon are far away from each other, three mounting supports are equidistantly distributed on the inner circumference of the mounting assembly, the three mounting supports are rotatably mounted with centering and alignment assemblies, and the centering and alignment assemblies are inclined to the support frame one, the two ends of the centering and alignment assembly extend to the left and right sides of the mounting assembly respectively, one ends of the three centering and alignment assemblies are close to each other, the other ends of the three centering and alignment assemblies are far away from each other, and the ends of the three centering and alignment assemblies far away from each other are all mounted with adjustment assemblies.

2. The printing plate roller welding device according to claim 1, characterized in that: The centering and alignment assembly includes a first leg, a mounting shaft, a roller and a second leg. One end of the first leg is rotatably mounted on a mounting support via the mounting shaft. A torsion spring is installed between the mounting shaft and the inner wall of the mounting assembly. A roller is movably installed on the other end of the first leg. The roller contacts the outer wall of the roller core. One end of the second leg is connected to one end of the first leg, and an adjustment assembly is installed on the other end of the second leg.

3. The printing plate roller welding device according to claim 2, characterized in that: The length of the first leg is smaller than that of the second leg. The ends of the first leg and the second leg connected to each other are circumferentially provided with connecting holes. The second leg is connected to the first leg as a whole through the connecting holes and connecting screws.

4. The printing plate roller welding device according to claim 2, characterized in that: The mounting assembly includes an annular plate 2, an annular rack 2 and a gear 2. The annular plate 2 is rotatably mounted on a support frame 1. Mounting supports are equidistantly fixed to the inner wall of the annular plate 2 at circumferential angles. An annular rack 2 is fixed to the outer wall of one end of the annular plate 2. The annular rack 2 is meshed with a gear 2 rotatably mounted on the support frame 1, and the gear 2 is connected to a rotating mechanism.

5. The printing plate roller welding device according to claim 2, characterized in that: The adjustment assembly includes a connecting shaft, an adjustment column, a sliding column, a second splint and a spring. The connecting shaft is rotatably mounted on the second leg, an adjustment column is vertically fixed to the middle of the connecting shaft, a sliding column is vertically slidably mounted on one end of the adjustment column, a second splint is fixed on one end of the sliding column, a spring is sleeved on the outer wall of the sliding column, and both ends of the spring are respectively connected to the second splint and the adjustment column.

6. The printing plate roller welding device according to claim 1, characterized in that: The centering clamping mechanism includes an annular plate 1, an annular rack 1, a gear 1, a pneumatic telescopic member, a clamping plate 1 and a mounting groove. The annular plate 1 is rotatably mounted on a support frame 2. An annular rack 1 is fixed to the outer wall of the annular plate 1. One side of the annular plate 1 and the annular rack 1 is provided with an opening. The gear 1 is symmetrically and rotatably arranged on one side of the support frame 2. The two gears 1 are respectively meshed with the two sides of the reversing rack 1, and the two gears 1 are connected to the rotating mechanism. The annular plate is equidistantly provided with mounting grooves in a circumferential direction. A pneumatic telescopic member is vertically mounted in the mounting groove. The output end of the pneumatic telescopic member faces the center of the annular plate 1, and a clamping plate 1 is fixed to the output end of the pneumatic telescopic member.

7. The printing plate roller welding device according to claim 6, characterized in that: The arc length between the meshing points of the annular rack 1 and the two gears 1 is greater than the arc length of the opening of the arc rack 1.

8. The printing plate roller welding device according to claim 6, characterized in that: The rotating mechanism includes a rotating motor, a transmission member and a transmission shaft. The rotating motor is fixed on a movable slide. The transmission shaft is symmetrically mounted on support frame 1 and support frame 2 for rotation. One end of the two transmission shafts are respectively fixedly connected to two gears 1, and the other end of one transmission shaft is fixedly connected to gear 2. The other ends of the two transmission shafts are connected to the output end of the rotating motor through the transmission member.

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