A printing press ink path cleaning device

Abstract

The present application relates to the technical field of printing machine, and particularly relates to a printing machine ink path cleaning device, which comprises a scraper assembly, a pressure regulating assembly, a liquid spraying assembly, a waste liquid collecting assembly, a pneumatic clutch pressure assembly, a mounting frame, a detection assembly and a control assembly; the scraper assembly comprises a scraper, which is attached to the surface of an ink roller during pressure combination; the scraper assembly is installed below the ink path, and the pneumatic clutch pressure assembly is connected to the scraper assembly; the pressure regulating assembly is connected to the pneumatic clutch pressure assembly and regulates the pressure between the scraper and the ink roller; the liquid spraying assembly is installed above the ink path, and the liquid spraying angle of the liquid spraying assembly can be adjusted. The present application changes the previous manual ink path cleaning structure, highly automates the liquid spraying, cleaning and waste liquid recycling, realizes one-key cleaning operation, achieves high-efficiency and rapid cleaning effect, and is not only convenient to operate, but also greatly saves the post-printing maintenance time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of printing machines, in particular to a printing machine ink path cleaning device. BACKGROUND

[0002] The printing machine ink path cleaning is a process that must be carried out after changing ink and stopping printing. The ink path cleaning device applied on the printing machine has a manual type and a pneumatic type. For the manual type ink cleaning device, as described in the patent [200620098662.8] ink roller cleaner of the offset printing machine, the scraper is integrated on the ink collecting box and placed below the ink transfer roller for cleaning. This kind of mode has a simple structure, but needs manual liquid spraying, and each time the ink path needs to be installed and adjusted, and the waste liquid also needs to be manually recycled and treated, which brings inconvenience to workers. Another kind of pneumatic type ink cleaning device is applied in commercial printing machines, and the clutch action is realized through a pneumatic cylinder, so that the degree of automation is improved, but the waste liquid needs to be manually recycled. SUMMARY

[0003] The present application solves the problem of low degree of automation of liquid spraying, cleaning and waste liquid recycling in the related art, and proposes a printing machine ink path cleaning device. The scraper assembly is installed below the ink path, the pneumatic clutch and pressure assembly is connected with the scraper assembly, the scraper is attached to the surface of the ink roller when the pressure is combined, the pressure adjusting assembly is connected with the pneumatic clutch and pressure assembly to adjust the pressure of the scraper and the ink roller, and the liquid spraying assembly is installed above the ink path and can adjust the liquid spraying angle. The present application changes the structure form of the previous manual ink path cleaning, highly automates the liquid spraying, cleaning and waste liquid recycling, realizes one-key cleaning operation, achieves high-efficiency and fast cleaning effect, is convenient to operate, and greatly saves the post-printing maintenance time.

[0004] In order to solve the above technical problems, the present application is realized by the following technical scheme: a printing machine ink path cleaning device, comprising a scraper assembly, a pressure adjusting assembly, a liquid spraying assembly, a waste liquid collecting assembly, a pneumatic clutch and pressure assembly, a mounting frame, a detection assembly and a control assembly; the scraper assembly comprises a scraper, the scraper is attached to the surface of the ink roller when the pressure is combined; the scraper assembly is installed below the ink path, the pneumatic clutch and pressure assembly is connected with the scraper assembly; the pressure adjusting assembly is connected with the pneumatic clutch and pressure assembly and adjusts the pressure of the scraper and the ink roller, the liquid spraying assembly is installed above the ink path, and the liquid spraying assembly can adjust the liquid spraying angle.

[0005] As a preferred scheme, the scraper is fixed through a pressing plate and a scraper bottom plate, left and right sliding plates are respectively installed at both ends of the scraper bottom plate, the scraper bottom plate is fixed on a scraper rotating shaft through safety lock pins on both sides, an error prevention block is installed on one side of the scraper rotating shaft, and a groove is formed in the left sliding plate.

[0006] As a preferred solution, the pressure regulating assembly comprises a gear and a cam, the gear is installed on a camshaft, the cam is installed on one end of the camshaft through a retaining ring, the gear is engaged with the gear shaft, and the gear shaft is installed on a gear shaft seat.

[0007] As a preferred solution, the pneumatic clutch pressure assembly comprises a swing arm and a cylinder, the cylinder is installed on the mounting frame through a cylinder support, one end of the swing arm is connected with the cylinder, and the other end is connected with the scraper shaft.

[0008] As a preferred solution, when the cylinder is pressed, the swing arm is in contact with the highest point of the cam, and a pad plate is installed on the side of the swing arm in contact with the cam.

[0009] As a preferred solution, the liquid spraying assembly comprises a solution tank and a liquid spraying pipe, a plurality of nozzles are installed on the liquid spraying pipe, fixed blocks are installed at both ends of the liquid spraying pipe through screws, a liquid pipe mounting seat is slidingly installed on the fixed blocks, and a locking pin is installed on the liquid pipe mounting seat and inserted into the waist-shaped hole of the fixed block.

[0010] As a preferred solution, the waste liquid collecting assembly comprises a waste liquid pipeline, a waste liquid tank, and a waste liquid tank, the waste liquid pipeline is connected with the waste liquid tank and the waste liquid tank, and the waste liquid tank is installed on the lower side of the scraper assembly.

[0011] As a preferred solution, the mounting frame comprises a left mounting plate, a right mounting plate, and a support column, and positioning steps are arranged on the left mounting plate, the right mounting plate, and the support column.

[0012] As a preferred solution, the detection assembly comprises waste liquid tank liquid level detection, clutch pressure detection, liquid tank liquid level detection, and safety lock pin detection, the waste liquid tank liquid level detection is installed in the waste liquid tank, the clutch pressure detection is installed on the cylinder for detecting the action of the cylinder, the liquid tank liquid level detection is installed in the waste liquid tank, and the safety lock pin detection is installed on the scraper shaft.

[0013] As a preferred solution, the control assembly comprises a water pump, a liquid path electromagnetic valve, a manual valve, a gas path electromagnetic valve, a pressure gauge, a controller, and an upper computer, the water pump, the pressure gauge, the liquid path electromagnetic valve, and the manual valve are sequentially installed on the liquid spraying pipeline of the solution tank outlet, the water pump and the liquid path electromagnetic valve are sequentially installed on the waste liquid pipeline of the waste liquid tank inlet, the gas path electromagnetic valve is installed on the gas path for controlling the clutch pressure of the scraper assembly, and the controller and the upper computer are used for collecting detection information, controlling the action of the entire device, setting the cleaning program, and prompting faults.

[0014] Compared with the prior art, the present application has the beneficial effects that: the present application completes liquid spraying and cleaning through the liquid spraying assembly and completes waste liquid recovery through the waste liquid collecting assembly; the structure form of the previous manual ink path cleaning is changed, liquid spraying, cleaning and waste liquid recovery are highly automated, one-key cleaning operation is realized, high efficient and fast cleaning effect is achieved, the operation is convenient, and the post-printing maintenance time is greatly saved; in addition, the angle of the nozzle can be adjusted, the nozzle can be conveniently sprayed with liquid at the best angle; the waste liquid tank and the waste liquid groove are respectively provided with liquid tank liquid level detection and waste liquid groove liquid level detection, and alarm is given when the liquid is full, so as to prevent waste liquid overflow and environmental pollution. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present application;

[0016] Figure 2 is a schematic diagram of the structure of the liquid spraying assembly of the present application;

[0017] Figure 3 is a sectional view of the liquid spraying assembly of the present application;

[0018] Figure 4 is a partial schematic diagram of the structure of the scraper assembly of the present application;

[0019] Figure 5 is a transverse sectional view of the scraper assembly of the present application;

[0020] Figure 6 is a side view of the present application Figure 5 ;

[0021] Figure 7 is a schematic diagram of the positional relationship of the dynamic clutch pressure assembly, the pressure regulating assembly and the scraper assembly of the present application;

[0022] Figure 8 is a schematic diagram of the structure of the pressure regulating assembly of the present application.

[0023] In the drawings:

[0024] 1- solution tank; 2- water pump; 3- pressure gauge; 4- liquid path electromagnetic valve; 5- manual valve; 6- pneumatic clutch pressure assembly; 7- waste liquid collection assembly; 8- pressure regulating assembly; 9- scraper assembly; 10- printing ink path; 11- liquid spraying assembly; 12- lock pin detection; 13- waste liquid tank liquid level detection; 14- clutch pressure detection; 15- gas path electromagnetic valve; 16- solution tank liquid level detection; 17- waste liquid tank; 18- left mounting plate; 19- waste liquid tank; 20- right mounting plate; 21- support column; 22- scraper body; 81- gear shaft; 82- cam shaft; 83- gear shaft seat; 84- gear; 85- retainer ring; 86- cam; 61- backing plate; 62- swing arm; 63- air cylinder; 64- air cylinder support; 91- scraper rotating shaft; 92- left slide plate; 93- error prevention block; 94- right slide plate; 95- safety lock pin; 96- pressure plate; 97- scraper; 98- scraper bottom plate; 99- sensor support; 910- safety lock pin detection; 111- fixing seat; 112- lock pin; 113- fixing block; 114- liquid spraying pipe; 115- joint; 116- liquid pipe mounting seat; 117- liquid pipe mounting seat bottom plate; 118- nozzle. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative, but not intended to limit the present application and its application or use in any way. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0026] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of a feature, step, operation, device, component and / or combination thereof.

[0027] The foregoing is considered as illustrative only of the principles of the application. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the application to the exact construction and practice described. Accordingly, all such variations are intended to be included within the scope of the present application as defined in the following claims, along with full equivalents thereof.

[0028] In the description of the present application, it is to be understood that the orientation or positional relationships indicated by terms such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "horizontal", "top", "bottom", and the like are generally based on the orientation or positional relationships shown in the drawings, and are merely intended to facilitate the description and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the scope of protection of the present application. The orientation terms "inner", "outer" refer to the inner and outer relative to the contour of the components themselves.

[0029] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper", and the like can be used herein to describe the spatial positional relationship of one device or feature with respect to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device as described in the drawings. For example, if the device in the drawings is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0030] In addition, it should be noted that the use of the terms "first", "second", and the like do not have a special meaning, and therefore cannot be construed as limiting the scope of protection of the present application, unless otherwise stated.

[0031] As Figures 1 to 8As shown, a printing machine ink path cleaning device includes a scraper assembly 9, a pressure adjusting assembly 8, a liquid spraying assembly 11, a waste liquid collecting assembly 7, a pneumatic clutch pressure assembly 6, a mounting frame, a detection assembly and a control assembly; the scraper assembly 9 includes a scraper 97, which is attached to the surface of an ink roller when pressure is applied; the scraper assembly 9 is installed below the ink path 10, and the pneumatic clutch pressure assembly 6 is connected to the scraper assembly 9; the pressure adjusting assembly 8 is connected to the pneumatic clutch pressure assembly 6 and adjusts the pressure between the scraper 97 and the ink roller; the liquid spraying assembly 11 is installed above the ink path 10, and the liquid spraying assembly 11 can adjust the liquid spraying angle.

[0032] In one embodiment, as shown in Figures 4-6 The scraper 97 is fixed by a pressing plate 96 and a scraper bottom plate 98, the ends of the scraper bottom plate 98 are respectively provided with a left sliding plate 92 and a right sliding plate 94, the scraper bottom plate 98 is fixed on the scraper rotating shaft 91 through safety lock pins 95 on both sides to prevent loosening, and the safety lock pins 95 can be pulled out for removal during maintenance; the scraper assembly 9 has an error prevention design, the left side of the scraper rotating shaft 91 is provided with an error prevention block 93, and the right side is not provided with the error prevention block 93; the left sliding plate 92 is designed as a groove, and the right sliding plate 94 is not designed as a groove; the safety lock pins 95 can be inserted when the scraper assembly 9 is correctly installed, and the safety lock pins 95 cannot be inserted when the scraper assembly 9 is incorrectly installed.

[0033] In one embodiment, as shown in Figure 7 The pressure adjusting assembly 8 is a mechanism for adjusting the pressure between the scraper 97 and the ink roller; the pressure adjusting assembly 8 includes a gear 84 and a cam 86, the gear 84 is installed on a cam shaft 82, the cam 86 is installed on one end of the cam shaft 82 through a retaining ring 85, the gear 84 is engaged with a gear shaft 81, and the gear shaft 81 is installed on a gear shaft seat 83; the angle of the cam 86 is adjusted by manually rotating the gear shaft 81.

[0034] In one embodiment, as shown in Figure 8 The pneumatic clutch pressure assembly 6 includes a swing arm 62 and a pneumatic cylinder 63, the pneumatic cylinder 63 is installed on the mounting frame through a pneumatic cylinder support 64, one end of the swing arm 62 is connected to the pneumatic cylinder 63, and the other end of the swing arm 62 is connected to the scraper rotating shaft 91; the rotation of the scraper rotating shaft 91 is controlled by the pneumatic cylinder 63 to realize the clutching and disengaging of the scraper 97 and the ink roller.

[0035] In one embodiment, when the pneumatic cylinder 63 is under pressure, the swing arm 62 is in contact with the highest point of the cam 86, and a backing plate 61 is installed on the side of the swing arm 62 in contact with the cam 86; the angle of the cam 86 is adjusted by manually rotating the gear shaft 81 to control the angle of the swing arm 62, i.e., the pressure between the scraper 97 and the ink roller.

[0036] In one embodiment, as shown in Figures 2-3As shown, the liquid spraying assembly 11 comprises a solution tank 1 and a liquid spraying pipe 114, and a plurality of nozzles 118 are mounted on the liquid spraying pipe 114. Half-cylindrical fixing blocks 113 are mounted on both ends of the liquid spraying pipe 114, and the fixing blocks 113 are provided with a waist-shaped hole. The fixing blocks 113 are locked with the liquid spraying pipe 114 by screws. The screws can be loosened to adjust the angle between the fixing blocks 113 and the nozzles 118, so that the nozzles 118 can spray liquid at the best angle. The fixing blocks 113 are slidingly mounted on liquid pipe mounting seats 116. Specifically, the liquid pipe mounting seats 116 are provided with sliding grooves, and the fixing blocks 113 are mounted in the sliding grooves. The liquid pipe mounting seats 116 are provided with locking pins 112, and the locking pins 112 are inserted into the waist-shaped holes of the fixing blocks 113.

[0037] In one embodiment, the waste liquid collecting assembly 7 comprises a waste liquid pipe, a waste liquid tank 17 and a waste liquid tank 19. The waste liquid pipe connects the waste liquid tank 17 and the waste liquid tank 19. The waste liquid tank 19 is mounted on the lower side of the scraper assembly 9.

[0038] In one embodiment, the mounting frame comprises a left mounting plate 18, a right mounting plate 20 and a plurality of struts 21. The scraper assembly 9, the waste liquid tank 19, the pneumatic clutch and pressure assembly 6 and the pressure regulating assembly 8 are mounted on the mounting frame. The plurality of struts 21 are respectively mounted on the outer sides of the left mounting plate 18 and the right mounting plate 20. Specifically, the scraper assembly 9 and the waste liquid tank 19 are mounted between the left mounting plate 18 and the right mounting plate 20. The pneumatic clutch and pressure assembly 6 and the pressure regulating assembly 8 are mounted on the right mounting plate 20. Positioning steps are arranged on the left mounting plate 18, the right mounting plate 20 and the struts 21. The mounting frame is mounted on the printing machine through the struts 21.

[0039] In one embodiment, the detection assembly comprises a waste liquid tank liquid level detection 13, a clutch pressure detection 14, a liquid tank liquid level detection 16 and a safety locking pin detection 910. The waste liquid tank liquid level detection 13 is mounted in the waste liquid tank 19 to alarm when the waste liquid tank 19 is full, so as to prevent the waste liquid from overflowing and polluting the environment. The clutch pressure detection 14 is mounted on the air cylinder 63 to detect the action of the air cylinder 63. The liquid tank liquid level detection 16 is mounted in the waste liquid tank 17 to alarm when the waste liquid tank 17 is full, so as to prevent the waste liquid from overflowing and polluting the environment. The safety locking pin detection 910 is mounted on the scraper shaft 91 to detect the state of the safety locking pin 95, so as to prevent the scraper body 22 from falling and damaging the ink roller due to the scraper assembly not being locked.

[0040] In one embodiment, the control assembly comprises the water pump 2, the liquid circuit electromagnetic valve 4, the manual valve 5, the gas circuit electromagnetic valve 15, the pressure gauge 3, the controller, the host computer, the water pump 2, the pressure gauge 3, the liquid circuit electromagnetic valve 4 and the manual valve 5 are sequentially installed on the liquid spraying pipeline at the outlet of the solution tank 1; the water pump 2 and the liquid circuit electromagnetic valve 4 are sequentially installed on the waste liquid pipeline at the inlet of the waste liquid tank 17, the gas circuit electromagnetic valve 15 is installed on the gas circuit and is used for controlling the clutch pressure of the scraper assembly 9, the liquid circuit electromagnetic valve 4 is used for controlling the liquid spraying action and the waste liquid collection, the controller and the host computer are used for collecting detection information, controlling the whole device action, setting the cleaning program, and prompting the fault.

[0041] In the embodiment, the number of ink circuits in the schematic diagram is only for illustration and is not limited by the number of ink circuits of the printing machine. In the case of a large number of ink circuits, the number of components can be increased accordingly.

[0042] The above is the preferred embodiment of the present application, and the skilled in the art can make changes and modifications to the above embodiment, therefore, the present application is not limited to the above specific embodiments, any obvious improvement, replacement or modification made by the skilled in the art on the basis of the present application shall fall within the protection scope of the present application.

Claims

1. A printing press ink path cleaning apparatus characterized by: The device comprises a scraper assembly (9), a pressure regulating assembly (8), a liquid spraying assembly (11), a waste liquid collecting assembly (7), a pneumatic clutch pressure assembly (6), a mounting frame, a detection assembly and a control assembly; the scraper assembly (9) comprises a scraper (97), which is attached to the surface of the ink roller during pressure combination; the scraper assembly (9) is installed below the ink path (10), the pneumatic clutch pressure assembly (6) is connected to the scraper assembly (9); the pressure regulating assembly (8) is connected to the pneumatic clutch pressure assembly (6) and adjusts the pressure between the scraper (97) and the ink roller, the liquid spraying assembly (11) is installed above the ink path (10), and the liquid spraying angle of the liquid spraying assembly (11) can be adjusted. The scraper (97) is fixed by a pressing plate (96) and a scraper bottom plate (98), the two ends of the scraper bottom plate (98) are respectively provided with a left sliding plate (92) and a right sliding plate (94), the scraper bottom plate (98) is fixed on the scraper rotating shaft (91) through safety lock pins (95) on the two sides, one side of the scraper rotating shaft (91) is provided with an error prevention block (93), and a groove is formed in the left sliding plate (92). The pressure regulating assembly (8) comprises a gear (84) and a cam (86), the gear (84) is installed on the cam shaft (82), the cam (86) is installed on one end of the cam shaft (82) through a retaining ring (85), the gear (84) is engaged with a gear shaft (81), and the gear shaft (81) is installed on a gear shaft seat (83). The pneumatic clutch pressure assembly (6) comprises a swing arm (62) and a pneumatic cylinder (63), the pneumatic cylinder (63) is installed on the mounting frame through a pneumatic cylinder support (64), one end of the swing arm (62) is connected with the pneumatic cylinder (63), and the other end of the swing arm (62) is connected with the scraper rotating shaft (91). When the pneumatic cylinder (63) is combined, the swing arm (62) is in contact with the highest point of the cam (86), and a backing plate (61) is installed on the side of the swing arm (62) in contact with the cam (86). The liquid spraying assembly (11) comprises a solution tank (1) and a liquid spraying pipe (114), a plurality of nozzles (118) are installed on the liquid spraying pipe (114), fixed blocks (113) are installed at the two ends of the liquid spraying pipe (114) through screws, a liquid pipe mounting seat (116) is slidably installed on the fixed blocks (113), lock pins (112) are installed on the liquid pipe mounting seat (116), and the lock pins (112) are inserted into the waist-shaped holes of the fixed blocks (113). The waste liquid collecting assembly (7) comprises a waste liquid pipeline, a waste liquid tank (17) and a waste liquid tank (19), the waste liquid pipeline is connected with the waste liquid tank (17) and the waste liquid tank (19), and the waste liquid tank (19) is installed below the scraper assembly (9).

2. The printing press ink path cleaning apparatus of claim 1, wherein: The mounting frame comprises a left mounting plate (18), a right mounting plate (20) and a support column (21), and positioning steps are arranged on the left mounting plate (18), the right mounting plate (20) and the support column (21).

3. The printing press ink path cleaning apparatus of claim 1, wherein: The detection assembly comprises waste liquid tank liquid level detection (13), clutch pressure detection (14), liquid tank liquid level detection (16) and safety lock detection (910). The waste liquid tank liquid level detection (13) is installed in the waste liquid tank (19), the clutch pressure detection (14) is installed on the air cylinder (63) and used for detecting the action of the air cylinder (63), the liquid tank liquid level detection (16) is installed in the waste liquid tank (17), and the safety lock detection (910) is installed on the scraper rotating shaft (91).

4. The printing press ink path cleaning apparatus of claim 1, wherein: The control assembly comprises a water pump (2), a liquid path electromagnetic valve (4), a manual valve (5), an air path electromagnetic valve (15), a pressure gauge (3), a controller and an upper computer. The water pump (2), the pressure gauge (3), the liquid path electromagnetic valve (4) and the manual valve (5) are sequentially installed on the liquid spraying pipeline at the outlet of the solution tank (1). The water pump (2) and the liquid path electromagnetic valve (4) are sequentially installed on the waste liquid pipeline at the inlet of the waste liquid tank (17). The air path electromagnetic valve (15) is installed on the air path and used for controlling the clutch pressure of the scraper assembly (9). The controller and the upper computer are used for collecting detection information, controlling the action of the whole device, setting a cleaning program, and prompting faults.

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