Roller printing ink adjusting mechanism

Abstract

The utility model provides a roller printing ink adjusting mechanism which comprises a printing roller rotationally connected to a rack, and an ink distributing mechanism is arranged in the printing roller and used for distributing ink to the printing roller. The ink distributing mechanism comprises a mounting support, an ink distributing roller, an ink roller and a distance adjusting assembly, the mounting support is connected to the rack, the ink distributing roller and the ink roller are rotationally connected to the mounting support and are arranged in parallel, and an ink storage groove for containing ink is formed between the ink distributing roller and the ink roller; the distance adjusting assembly is connected to the mounting support and used for adjusting the distance between the ink distributing roller and the ink roller, and then the ink outlet amount is adjusted. The distance adjusting assembly is arranged on the installation support, the distance between the ink distributing roller and the ink roller can be properly adjusted according to the specific environment temperature, and therefore the ink distributing device can adapt to the viscosity of ink in different environments, and it is guaranteed that the ink outlet amount is stable.

Description

Technical Field

[0001] This utility model relates to the technical field of high-speed printing machine accessories, specifically to a roller ink adjustment mechanism. Background Technology

[0002] A high-speed printing press first creates a printing plate from the text and images to be printed. Then, the plate is mounted on the printing cylinder of the printing press. An ink distribution device evenly coats the printing cylinder with the plate, and finally, the ink is directly or indirectly transferred to paper, thus replicating the printed product identical to the plate. Commercially available ink distribution devices typically consist of an ink tank, an ink distribution pipe, an ink distribution roller, and an ink roller. The ink distribution pipe evenly delivers ink from the ink tank to the ink reservoir between the ink distribution roller and the ink roller. The rotating printing cylinder then evenly coats the printing plate with ink from the ink roller.

[0003] Because ink is viscous, its viscosity changes with temperature variations between winter and summer. However, the ink outlet gap between the existing ink distribution roller and ink roller is fixed, which makes it difficult to control the ink output. This can easily lead to insufficient ink output resulting in incomplete printing or excessive ink output resulting in ink waste. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a roller ink adjustment mechanism that can adjust the ink output.

[0005] The technical solution of this utility model is to provide a roller ink adjusting mechanism with the following structure:

[0006] The device includes a printing cylinder rotatably connected to a frame, and an ink-spreading mechanism inside the printing cylinder for spreading ink evenly on the printing cylinder. The ink-spreading mechanism includes a mounting bracket, an ink-spreading roller, an ink roller, and a spacing adjustment component. The mounting bracket is connected to the frame, and the ink-spreading roller and ink roller are rotatably connected to the mounting bracket. The ink-spreading roller and ink roller are arranged parallel to each other, and an ink storage tank for accommodating ink is formed between them. The spacing adjustment component is connected to the mounting bracket and is used to adjust the spacing between the ink-spreading roller and the ink roller, thereby adjusting the ink output.

[0007] After adopting the above structure, the roller ink adjusting mechanism of this utility model has the following advantages compared with the prior art:

[0008] This invention features a spacing adjustment component on the mounting bracket. Depending on the specific ambient temperature, the spacing between the ink distribution roller and the ink roller can be adjusted appropriately to adapt to the viscosity of the ink under different environments and ensure stable ink output.

[0009] Preferably, the spacing adjustment assembly includes a fixed base, an adjusting screw block, an adjusting bolt, and a fine-tuning block. The fixed base is connected to the mounting bracket, the adjusting screw block is connected to the end of the rotating shaft of the ink distribution roller, and the end of the adjusting screw block facing the fixed base has a screw hole that matches the adjusting bolt. The fixed base has a through hole at a position corresponding to the screw hole. The connecting end of the adjusting bolt passes through the through hole on the fixed base and is threadedly connected to the adjusting screw block. The fine-tuning block is fixedly connected to the adjusting bolt and rotates circumferentially synchronously with the adjusting bolt.

[0010] Rotating the fine-tuning block causes the adjusting bolt to rotate, thereby adjusting the depth of the adjusting bolt connection end within the adjusting screw block. Since the fixed base cannot move, the adjusting screw block will move as the adjusting bolt rotates, thereby causing the ink distribution roller to move closer to or further away from the ink roller, ultimately achieving the adjustment of the ink output.

[0011] Preferably, a return spring is fitted onto the adjusting bolt, with one end of the return spring abutting against the fixed seat and the other end abutting against the adjusting screw block. When the adjusting bolt is screwed into the adjusting screw block, the return spring is compressed; when the adjusting bolt is screwed out in the opposite direction, the return spring assists the adjusting screw block in returning to its original position.

[0012] Preferably, the upper and lower ends of the fine-tuning block extend radially to form a pushing part.

[0013] Since the fine-tuning block is located inside the device and is inconvenient to rotate, two pushing parts extend radially from its upper and lower ends. When adjustment is needed, simply insert a long, thin tool such as a screwdriver into the gap on the side of the device, press it against one of the pushing parts, and the adjusting bolt can be adjusted.

[0014] Preferably, the outer end face of the pushing part is provided with a toothed groove, and the fixing seat is provided with an elastic pin, the elastic pin abutting against the end face of one of the toothed grooves.

[0015] The engagement between the elastic pin and the toothed groove allows the fine-tuning block to rotate with a slight jolt, making it easier for users to make fine adjustments.

[0016] Preferably, the ink distribution mechanism further includes an infrared beam sensor connected to the mounting bracket for detecting the ink level in the ink reservoir between the ink distribution roller and the ink roller.

[0017] Preferably, the system also includes an ink delivery assembly, which comprises an ink pump bracket, an ink pump motor, an ink distribution pipe, and an ink tank. The ink pump bracket is connected to the frame, and the ink pump motor is fixedly mounted on the ink pump bracket. Both ends of the ink pump motor are connected to the ink distribution pipe and the ink tank respectively through oil delivery pipes. The ink is used to deliver the ink in the ink tank to the ink distribution pipe and then evenly inject it into the ink storage tank between the ink distribution roller and the ink roller through the ink distribution pipe. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0020] Figure 3 This is another cross-sectional view of the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of the mid-gap adjustment component of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Frame, 2. Printing cylinder, 3. Ink distribution mechanism, 31. Mounting bracket, 32. Ink distribution roller, 33. Ink roller, 34. Spacing adjustment assembly, 341. Fixing base, 342. Adjusting screw, 343. Adjusting bolt, 344. Fine adjustment block, 3441. Pushing part, 3442. Gear part, 345. Return spring, 346. Elastic pin, 35. Infrared beam sensor, 4. Ink delivery assembly, 41. Ink pump bracket, 42. Ink diverter pipe, 43. Ink tank. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. At the same time, the terms "first", "second", etc. are only used to distinguish the names of each component and do not have a primary or secondary relationship. Therefore, they should not be construed as limitations on this utility model.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model discloses a roller ink adjustment mechanism: including a printing roller 2 rotatably connected to a frame 1, and an ink equalization mechanism 3 provided inside the printing roller 2 for equalizing ink on the printing roller 2.

[0027] The ink distribution mechanism 3 includes a mounting bracket 31, an ink distribution roller 32, an ink roller 33, and a spacing adjustment component 34. The mounting bracket 31 is connected to the frame 1. The ink distribution roller 32 and the ink roller 33 are rotatably connected to the mounting bracket 31. The ink distribution roller 32 and the ink roller 33 are arranged parallel to each other, and an ink storage tank for holding ink is formed between them. The spacing adjustment component 34 is connected to the mounting bracket 31 and can adjust the spacing between the ink distribution roller 32 and the ink roller 33 to adapt to the viscosity of ink under different environments and ensure stable ink output.

[0028] Since the viscosity of ink changes with different ambient temperatures, it can easily lead to unstable ink output. In order to ensure stable ink output when the ambient temperature changes, the ink distribution mechanism 3 of this utility model adds a spacing adjustment component 34, which can appropriately adjust the spacing between the ink distribution roller and the ink roller according to the specific ambient temperature, thereby adapting to the viscosity of ink under different environments.

[0029] The spacing adjustment assembly 34 includes a fixed base 341, an adjusting screw block 342, an adjusting bolt 343, and a fine-tuning block 344. The fixed base 341 is connected to the mounting bracket 31. The adjusting screw block 342 is connected to the end of the rotating shaft of the ink distribution roller 32. The end of the adjusting screw block 342 facing the fixed base 341 is provided with a screw hole that matches the adjusting bolt 343. The fixed base 341 is provided with a through hole at the position corresponding to the screw hole. The connecting end of the adjusting bolt 343 passes through the through hole on the fixed base 341 and is threadedly connected to the adjusting screw block 342. The fine-tuning block 344 is fixedly connected to the adjusting bolt 343 and rotates circumferentially synchronously with the adjusting bolt 343. Rotating the fine-tuning block 344 causes the adjusting bolt 343 to rotate, thereby adjusting the depth of the connecting end of the adjusting bolt 343 within the adjusting screw block 342. Since the fixed seat 341 cannot move, the adjusting screw block 342 will move with the rotation of the adjusting bolt 343, thereby causing the ink roller 32 to move closer to or further away from the ink roller 33, ultimately achieving the adjustment of the ink output.

[0030] A return spring 345 is fitted onto the adjusting bolt 343. One end of the return spring 345 abuts against the fixed seat 341, and the other end abuts against the adjusting screw block 342. When the adjusting bolt 343 is screwed into the adjusting screw block 342, the return spring 345 is compressed. When the adjusting bolt 343 is screwed out in the opposite direction, the return spring 345 can assist the adjusting screw block 342 in resetting.

[0031] Since the fine adjustment block 344 is located inside the equipment and is inconvenient to rotate, two pushing parts 3441 are formed by radially extending from the upper and lower ends of the fine adjustment block 344. When adjustment is needed, simply insert a slender tool such as a screwdriver from the gap on the side of the equipment, press it against one of the pushing parts 3441, and the adjusting bolt 343 can be rotated and adjusted.

[0032] The outer end face of the pushing part 3441 is provided with a toothed part 3442, and the fixed base 341 is provided with a spring pin 346. The end face of the toothed part 3442 below the fine-tuning block 344 abuts against the spring pin 346. The cooperation between the spring pin 346 and the toothed part 3442 can make the fine-tuning block 344 rotate with a tactile feedback, which is convenient for the user to make fine adjustments.

[0033] The spacing adjustment components 34 are in two sets, respectively set on both sides of the ink distribution mechanism 3, and the adjustment angles of the fine-tuning blocks 344 of the two sets of spacing adjustment components 34 are the same.

[0034] This utility model also includes an ink delivery assembly 4, which includes an oil pump bracket 41, an oil pump motor (not shown in the figure), an ink distribution pipe 42, and an ink tank 43. The oil pump bracket 41 is connected to the frame 1, and the oil pump motor is fixedly installed on the oil pump bracket 41. Both ends of the oil pump motor are connected to the ink distribution pipe 42 and the ink tank 43 respectively through oil delivery pipes. The oil pump motor is used to deliver the ink in the ink tank 43 to the ink distribution pipe 42 and then evenly inject it into the ink storage tank between the ink distribution roller 32 and the ink roller 33 through the ink distribution pipe 42.

[0035] The ink distribution mechanism 3 also includes an infrared beam sensor 35 connected to the mounting bracket 31, used to detect the ink level in the ink reservoir between the ink distribution roller 32 and the ink roller 33. The infrared beam sensor 35 is electrically connected to the controller of the oil pump motor, and can control the delivery of ink according to the detected information to prevent ink overflow.

[0036] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A roller ink regulating mechanism, comprising a printing roller (2) rotatably connected to a frame (1), wherein an ink-distributing mechanism (3) is arranged in the printing roller (2) for distributing ink on the printing roller (2); characterized in that: The ink uniformizing mechanism (3) comprises a mounting bracket (31), an ink uniformizing roller (32), an ink roller (33) and a distance adjusting assembly (34), the mounting bracket (31) is connected to the rack (1), the ink uniformizing roller (32) and the ink roller (33) are rotatably connected to the mounting bracket (31), the ink uniformizing roller (32) and the ink roller (33) are arranged in parallel to each other, and an ink storage groove is formed between the ink uniformizing roller (32) and the ink roller (33) for containing ink; the distance adjusting assembly (34) is connected to the mounting bracket (31) and used for adjusting the distance between the ink uniformizing roller (32) and the ink roller (33) and then adjusting the ink output.

2. The drum ink conditioning mechanism of claim 1, wherein: The distance adjusting assembly (34) comprises a fixing seat (341), an adjusting screw block (342), an adjusting screw bolt (343) and a fine adjustment block (344), the fixing seat (341) is connected to the mounting bracket (31), the adjusting screw block (342) is connected to the end of the rotating shaft of the ink uniformizing roller (32), one end of the adjusting screw block (342) towards the fixing seat (341) is provided with a screw hole matched with the adjusting screw bolt (343), a through hole is formed in the fixing seat (341) at a position corresponding to the screw hole, and the connecting end of the adjusting screw bolt (343) passes through the through hole of the fixing seat (341) and is threadedly connected with the adjusting screw block (342); the fine adjustment block (344) is fixedly connected to the adjusting screw bolt (343) and rotates synchronously with the adjusting screw bolt (343) in the circumferential direction.

3. The drum ink conditioning mechanism of claim 2, wherein: The adjusting screw bolt (343) is sleeved with a reset spring (345), one end of the reset spring (345) abuts against the fixing seat (341), and the other end abuts against the adjusting screw block (342).

4. The drum ink conditioning mechanism of claim 3, wherein: The upper and lower ends of the fine adjustment block (344) extend radially to form a pushing portion (3441).

5. The drum ink conditioning mechanism of claim 4, wherein: A tooth groove portion (3442) is arranged on the outer end surface of the pushing portion (3441), an elastic pin (346) is arranged on the fixing seat (341), and the elastic pin (346) abuts against the end surface of one of the tooth groove portions (3442).

6. The drum ink conditioning mechanism of claim 5, wherein: The ink uniformizing mechanism (3) further comprises an infrared opposite-acting sensor (35) connected to the mounting bracket (31) and used for detecting the ink liquid level of the ink storage groove between the ink uniformizing roller (32) and the ink roller (33).

7. The drum ink conditioning mechanism of claim 1, wherein: The ink conveying assembly (4) comprises an oil pump bracket (41), an oil pump motor, an ink shunt pipe (42) and an ink tank (43), the oil pump bracket (41) is connected to the rack (1), the oil pump motor is fixedly installed on the oil pump bracket (41), and the two ends of the oil pump motor are connected with the ink shunt pipe (42) and the ink tank (43) through oil conveying pipes respectively, so as to convey the ink in the ink tank (43) to the ink shunt pipe (42) and then uniformly inject the ink into the ink storage groove between the ink uniformizing roller (32) and the ink roller (33) through the ink shunt pipe (42).

Images