Secondary printing device of printing machine

Abstract

The utility model relates to the technical field of printing machines, in particular to a secondary printing device of a printing machine, which comprises printing equipment, an ink box is fixedly connected to the inner bottom wall of the printing equipment, two groups of first ink guide rollers which are symmetrically distributed left and right are arranged on the upper side of the ink box, and second ink guide rollers are arranged on the side surfaces of the two groups of first ink guide rollers. Printing rollers are arranged on the upper sides of the two sets of second ink guide rollers, mounting assemblies are arranged at the front end and the rear end of each printing roller, and each mounting assembly comprises a connecting shaft, a mounting block, an inserting groove, a rotating shaft, an inserting hole, a limiting groove, a limiting spring, a limiting block, an adjusting groove, an adjusting block, a locking plate, a locking rod and a locking groove. The mounting assembly improves the dismounting speed of the printing roller, patterns on the surface of the printing roller can be conveniently and rapidly replaced, the equipment can be put into use as soon as possible, and the printing efficiency of the equipment is effectively improved; in addition, the dryer rapidly dries the ink printed by the first group of printing rollers, the ink on the surfaces of the two groups of printing rollers is prevented from being mixed together, and the printing quality is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to a secondary printing device of a printing machine. Background Art

[0002] Printing is a technology that transfers ink from originals such as text, pictures, photos, anti-counterfeiting, etc. to the surface of paper, fabrics, plastics, leather and other materials through processes such as plate making, inking and pressurization, in order to batch reproduce the content of the originals.

[0003] Among them, announcement number CN205467823U discloses a secondary printing mechanism, which belongs to the field of printing equipment, including a first printing plate roller, a second printing plate roller, a main drive roller and a secondary drive roller; the main drive roller and the secondary drive roller are driven by a motor to drive the printing belt; the first printing plate roller and the second printing plate roller are respectively arranged at the left and right ends of the main drive roller to perform two printings; the secondary drive roller is located at the lower end of the main drive roller to pull the material out. This secondary printing mechanism can directly perform secondary printing with good printing effect.

[0004] In actual use, printing different patterns requires different printing rollers, which need to be replaced. During the use of this device, it is inconvenient to replace the printing roller, resulting in a slow replacement speed of the printing roller, which in turn makes the printing efficiency of the equipment low.

[0005] Therefore, it is necessary to invent a secondary printing device for a printing press to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a secondary printing device of a printing press, so as to solve the problem that it is inconvenient to replace the printing roller in the technology, resulting in a slow speed of replacing the printing roller and thus making the printing efficiency of the equipment low.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a secondary printing device of a printing press, comprising a printing device, an inner bottom wall of the printing device is fixedly connected to an ink cartridge, two groups of first ink guide rollers symmetrically distributed on the upper side of the ink cartridge are arranged, the sides of the two groups of the first ink guide rollers are arranged with second ink guide rollers, the upper sides of the two groups of the second ink guide rollers are arranged with printing rollers, the front and rear ends of the printing rollers are arranged with mounting components, the mounting components include a connecting shaft, a mounting block, a plug-in slot, a rotating shaft, a plug-in hole, a limit slot, a limit spring, a limit block, an adjustment slot, an adjustment block, a locking plate, a locking rod and a locking slot, and the upper side of the printing device is fixedly connected to a printing platform.

[0008] By adopting the above technical solution, two groups of printing rollers cooperate to perform secondary printing on the substrate. At the same time, when the pattern on the surface of the printing roller needs to be replaced, the installation component facilitates the rapid disassembly of the printing roller and the replacement of the pattern on the surface of the printing roller.

[0009] Optionally, the connecting shaft is fixedly connected to the front and rear ends of the printing roller, the plug-in slot is opened in the middle position of the mounting block, the connecting shaft is plugged into the inside of the plug-in slot, the rotating shaft is fixedly connected to the surface of the mounting block away from the connecting shaft, and the rotating shaft is rotatably connected to the inner walls on the front and rear sides of the printing equipment respectively.

[0010] By adopting the above technical solution, the connecting shaft is inserted into the inside of the inserting groove to fix the printing roller, and the printing roller is rotated inside the printing device through the rotating shaft.

[0011] Optionally, one end of the front rotating shaft located on the outside of the printing device is fixedly connected to a transmission disk, and a transmission belt is connected between the two sets of transmission disks. The front and rear surfaces of the printing device are fixedly connected to device boxes, and the transmission disk is located inside the front device box. An electric motor is fixedly installed on the surface of the front device box, and the output end of the electric motor is coaxially fixedly connected to the right transmission disk.

[0012] By adopting the above technical solution, the electric motor drives the right transmission disc to rotate, and drives the left transmission disc to rotate through the transmission belt, so that the two groups of printing rollers keep rotating synchronously, avoiding deviation in pattern printing.

[0013] Optionally, two groups of plug-in holes are provided, and the two groups of plug-in holes are respectively opened on the front and rear sides of the mounting block, the locking rod is inserted into the plug-in hole, the upper end of the locking rod is fixedly connected to the locking plate, and the locking groove is opened on the side of the locking rod.

[0014] Optionally, the limiting groove is opened on the side wall of the plug-in hole, the limiting block is slidably connected to the limiting groove, the limiting spring is arranged inside the limiting groove, and the two ends of the limiting spring are respectively fixedly connected to the limiting block and the side wall of the limiting groove.

[0015] By adopting the above technical solution, the locking rod is inserted into the inside of the plug-in hole. At this time, the limit spring pushes the limit block to one side of the locking rod, and inserts the limit block into the inside of the locking groove to fix the locking rod, thereby quickly fixing the connecting shaft inside the plug-in groove.

[0016] Optionally, the adjustment grooves are respectively opened on the front and rear surfaces of the mounting block, the adjustment block is slidably connected to the inside of the adjustment groove, and one inner end of the adjustment block is fixedly connected to the limit block.

[0017] By adopting the above technical solution, the adjusting block slides inside the adjusting groove, sliding the limiting block inwards. At this time, the limiting block is separated from the locking groove, and the locking rod can be pushed upward.

[0018] Optionally, a support frame is provided on the upper side of the two groups of printing rollers, a positioning rod is fixedly connected to the upper surface of the equipment box, and the lower end of the support frame is slidably connected to the positioning rod.

[0019] By adopting the above technical solution, the support frame can slide left and right on the upper side of the printing device.

[0020] Optionally, a hydraulic cylinder is fixedly mounted on the upper surface of the support frame, an output end of the hydraulic cylinder is fixedly connected to a mounting plate, a pressing shaft is rotatably connected to the lower side of the mounting plate, and a dryer is fixedly connected to a position between two groups of printing rollers on the upper side of the printing equipment.

[0021] By adopting the above technical solution, the hydraulic cylinder pushes the pressing shaft downward, so that the substrate and the printing roller fit closely together, improving the printing clarity. At the same time, after the first set of printing rollers completes printing, the dryer dries the ink on the surface of the substrate to prevent the inks on the surfaces of the two sets of printing rollers from mixing together.

[0022] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0023] 1. The utility model slides the limit block inwardly by the adjusting block in the adjusting groove, at which time the limit block is disengaged from the locking groove, and then the locking rod can be pushed upward; in addition, the locking rod is inserted into the inside of the plug-in hole, at which time the limit spring pushes the limit block to one side of the locking rod, and the limit block is inserted into the inside of the locking groove, the locking rod is fixed, and then the connecting shaft is quickly fixed in the inside of the plug-in groove, which is convenient for quickly disassembling and installing the printing roller, and is convenient for quickly replacing the pattern on the surface of the printing roller, thereby effectively improving the printing efficiency of the equipment, and solving the problem that it is inconvenient to replace the printing roller in the technology, resulting in a slow replacement speed of the printing roller, and then making the printing efficiency of the equipment low;

[0024] 2. The utility model pushes the pressing shaft downward by the hydraulic cylinder, so that the substrate and the printing roller are closely fitted, thereby improving the printing clarity. At the same time, after the first group of printing rollers completes printing, the dryer dries the ink on the surface of the substrate to avoid mixing the inks on the surfaces of the two groups of printing rollers, thereby further improving the printing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the printing roller of the utility model;

[0028] Figure 4This is a schematic diagram of the outer structure of the mounting block of the utility model;

[0029] Figure 5 This is a schematic diagram of the inner structure of the mounting block of the utility model;

[0030] Figure 6 This is a schematic diagram of the support frame structure of the utility model.

[0031] Description of reference numerals:

[0032] 1. Printing equipment; 11. Printing platform; 12. Equipment box; 13. Positioning rod; 14. Electric motor; 2. Support frame; 21. Mounting plate; 22. Pressing shaft; 23. Hydraulic cylinder; 24. Dryer; 3. Ink cartridge; 31. First ink guide roller; 32. Second ink guide roller; 33. Printing roller; 34. Connecting shaft; 4. Mounting block; 41. Plug-in slot; 42. Rotating shaft; 43. Drive disc; 44. Drive belt; 45. Plug-in hole; 46. Limiting slot; 47. Limiting spring; 48. Limiting block; 49. Adjusting slot; 410. Adjusting block; 5. Locking plate; 51. Locking rod; 52. Locking slot. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0034] The utility model provides Figures 1 to 5 A secondary printing device of a printing press shown in the figure comprises a printing device 1, an inner bottom wall of the printing device 1 is fixedly connected to an ink cartridge 3, two groups of first ink guide rollers 31 symmetrically distributed on the upper side of the ink cartridge 3 are arranged, the sides of the two groups of first ink guide rollers 31 are arranged with second ink guide rollers 32, the upper sides of the two groups of second ink guide rollers 32 are arranged with printing rollers 33, and the front and rear ends of the printing roller 33 are arranged with mounting components, the mounting components include a connecting shaft 34, a mounting block 4, a plug-in slot 41, a rotating shaft 42, a plug-in hole 45, a limit slot 46, a limit spring 47, a limit block 48, an adjustment slot 49, an adjustment block 410, a locking plate 5, a locking rod 51 and a locking slot 52, the upper side of the printing device 1 is fixedly connected to a printing platform 11, and the front and rear side surfaces of the printing device 1 are fixedly connected to a device box 12.

[0035] Among them, the paper is laid on the upper side of the printing platform 11, and the paper is moved by being pulled by the outer winding mechanism. At the same time, the two groups of first ink guide rollers 31 rotate to transfer the ink inside the ink cartridge 3 to the surface of the second ink guide roller 32, and then the second ink guide roller 32 transfers the ink to the surface of the printing roller 33, and the two groups of printing rollers 33 cooperate to print the paper; in addition, when it is necessary to replace the surface pattern of the printing roller 33, the printing roller 33 is quickly disassembled through the installation assembly to improve the efficiency of replacing the surface pattern of the printing roller 33.

[0036] See also Figures 3 to 5 The connecting shaft 34 is fixedly connected to the front and rear ends of the printing roller 33, the plug-in slot 41 is opened in the middle of the mounting block 4, the connecting shaft 34 is plugged into the inside of the plug-in slot 41, the rotating shaft 42 is fixedly connected to the surface of the mounting block 4 on the side away from the connecting shaft 34, the rotating shaft 42 is respectively rotatably connected to the inner walls of the front and rear sides of the printing device 1, the end of the front rotating shaft 42 located on the outside of the printing device 1 is fixedly connected to a transmission disk 43, and a transmission belt 44 is connected between the two sets of transmission disks 43. The transmission disk 43 is located inside the front device box 12, and an electric motor 14 is fixedly installed on the surface of the front device box 12. The output end of the electric motor 14 is coaxially fixedly connected to the right transmission disk 43, and the plug-in hole 4 Two groups of plug holes 45 are provided, and the two groups of plug holes 45 are respectively provided at the front and rear sides of the interior of the mounting block 4. The locking rod 51 is plugged into the interior of the plug hole 45. The upper end of the locking rod 51 is fixedly connected to the locking plate 5. The locking groove 52 is provided on the side of the locking rod 51. The limiting groove 46 is provided on the side wall of the plug hole 45. The limiting block 48 is slidably connected to the limiting groove 46. The limiting spring 47 is provided inside the limiting groove 46. The two ends of the limiting spring 47 are respectively fixedly connected to the limiting block 48 and the side wall of the limiting groove 46. The adjusting grooves 49 are respectively provided on the front and rear side surfaces of the mounting block 4. The adjusting block 410 is slidably connected to the interior of the adjusting groove 49. One inner end of the adjusting block 410 is fixedly connected to the limiting block 48.

[0037] Specifically, the output end of the electric motor 14 drives the right transmission disc 43 to rotate, and the right transmission disc 43 cooperates with the transmission belt 44 to drive the left transmission disc 43 to rotate, thereby making the two groups of printing rollers 33 rotate synchronously to avoid misalignment of the printed pattern.

[0038] In addition, during the disassembly and assembly of the printing roller 33, the limit block 48 is slid to one side by the two sets of adjustment blocks 410, so that the limit block 48 is separated from the locking groove 52. At this time, the locking rod 51 can be quickly pulled out of the plug hole 45, and then the connecting shaft 34 can be taken out from the plug groove 41, so that the printing roller 33 can be quickly disassembled; when the printing roller 33 is installed, the connecting shafts 34 at both ends of the printing roller 33 are inserted into the interior of the plug groove 41, and then the locking rod 51 is inserted into the interior of the plug hole 45. Since the lower end of the locking rod 51 and the outer end of the limit block 48 are both inclined, the limit block 48 will be pushed to one side during the downward movement of the locking rod 51. After the locking rod 51 is completely inserted into the plug hole 45, the limit spring 47 pushes the limit block 48 outward so that it is inserted into the interior of the locking groove 52, quickly fixes the locking rod 51, and then quickly locks the printing roller 33, thereby improving the disassembly and assembly efficiency of the printing roller 33.

[0039] See also Figure 1 and Figure 6A support frame 2 is provided on the upper side of the two groups of printing rollers 33, a positioning rod 13 is fixedly connected to the upper surface of the equipment box 12, and the lower end of the support frame 2 is slidably connected to the positioning rod 13. A hydraulic cylinder 23 is fixedly installed on the upper surface of the support frame 2, and a mounting plate 21 is fixedly connected to the output end of the hydraulic cylinder 23. A pressing shaft 22 is rotatably connected to the lower side of the mounting plate 21. A dryer 24 is fixedly connected to the position between the two groups of printing rollers 33 on the upper side of the printing device 1.

[0040] At the same time, during the printing process, the hydraulic cylinder 23 pushes the pressure shaft 22 downward, so that the paper support and the printing roller 33 fit closely, improving the printing clarity. At the same time, after the first group of printing rollers 33 completes printing, the dryer 24 quickly dries the ink on the surface of the paper to avoid the ink on the surface of the two groups of printing rollers 33 from mixing together, further improving the printing quality.

[0041] The working principle of the utility model is as follows: the adjusting block 49 slides inside the adjusting groove 410, and the limit block 48 slides inwardly. At this time, the limit block 48 disengages from the locking groove 52, and then the locking rod 51 can be pushed upward; in addition, the locking rod 51 is inserted into the inside of the plug-in hole 45. At this time, the limit spring 47 pushes the limit block 48 to one side of the locking rod 51, and inserts the limit block 48 into the inside of the locking groove 52, fixes the locking rod 51, and then quickly fixes the connecting shaft 34 inside the plug-in groove 41, so as to facilitate the rapid disassembly and installation of the printing roller 33, and then facilitate the rapid replacement of the pattern on the surface of the printing roller 33, so that the equipment can be put into use as soon as possible, and the printing efficiency of the equipment is effectively improved.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only preferred examples of the utility model, and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A secondary printing device of a printing press, comprising a printing device (1), characterized in that: The inner bottom wall of the printing device (1) is fixedly connected to an ink cartridge (3); two groups of first ink guide rollers (31) symmetrically distributed on the upper side of the ink cartridge (3); second ink guide rollers (32) are arranged on the side surfaces of the two groups of the first ink guide rollers (31); printing rollers (33) are arranged on the upper sides of the two groups of the second ink guide rollers (32); mounting components are arranged at both the front and rear ends of the printing roller (33); the mounting components include a connecting shaft (34), a mounting block (4), a plug-in slot (41), a rotating shaft (42), a plug-in hole (45), a limit slot (46), a limit spring (47), a limit block (48), an adjustment slot (49), an adjustment block (410), a locking plate (5), a locking rod (51) and a locking slot (52); and the upper side of the printing device (1) is fixedly connected to a printing platform (11).

2. A secondary printing device for a printing press according to claim 1, characterized in that: The connecting shaft (34) is fixedly connected to the front and rear ends of the printing roller (33); the plug-in slot (41) is provided in the middle of the mounting block (4); the connecting shaft (34) is plugged into the inside of the plug-in slot (41); the rotating shaft (42) is fixedly connected to the surface of the mounting block (4) on a side away from the connecting shaft (34); and the rotating shaft (42) is rotatably connected to the inner walls of the front and rear sides of the printing device (1) respectively.

3. A secondary printing device for a printing press according to claim 2, characterized in that: One end of the rotating shaft (42) on the front side located outside the printing device (1) is fixedly connected to a transmission disc (43), and a transmission belt (44) is transmission-connected between the two sets of transmission discs (43). The front and rear surfaces of the printing device (1) are both fixedly connected to a device box (12), and the transmission disc (43) is located inside the front device box (12). An electric motor (14) is fixedly mounted on the surface of the front device box (12), and the output end of the electric motor (14) is coaxially fixedly connected to the right transmission disc (43).

4. A secondary printing device for a printing press according to claim 1, characterized in that: The plug holes (45) are provided in two groups, and the two groups of plug holes (45) are respectively opened at the front and rear sides of the interior of the mounting block (4), the locking rod (51) is inserted into the interior of the plug holes (45), the upper end of the locking rod (51) is fixedly connected to the locking plate (5), and the locking groove (52) is opened on the side of the locking rod (51).

5. A secondary printing device for a printing press according to claim 4, characterized in that: The limiting groove (46) is formed on a side wall of the plug hole (45); the limiting block (48) is slidably connected to the limiting groove (46); the limiting spring (47) is arranged inside the limiting groove (46); and two ends of the limiting spring (47) are respectively fixedly connected to the limiting block (48) and the side wall of the limiting groove (46).

6. A secondary printing device for a printing press according to claim 5, characterized in that: The adjustment grooves (49) are respectively provided on the front and rear surfaces of the mounting block (4); the adjustment block (410) is slidably connected to the inside of the adjustment groove (49); and one inner end of the adjustment block (410) is fixedly connected to the limit block (48).

7. The secondary printing device of a printing press according to claim 3, characterized in that: A support frame (2) is provided on the upper side of the two groups of printing rollers (33); a positioning rod (13) is fixedly connected to the upper surface of the device box (12); and the lower end of the support frame (2) is slidably connected to the positioning rod (13).

8. A secondary printing device for a printing press according to claim 7, characterized in that: A hydraulic cylinder (23) is fixedly mounted on the upper surface of the support frame (2); an output end of the hydraulic cylinder (23) is fixedly connected to a mounting plate (21); a pressing shaft (22) is rotatably connected to the lower side of the mounting plate (21); and a drying machine (24) is fixedly connected to a position between two groups of printing rollers (33) on the upper side of the printing device (1).

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