Printing plate roller lubricating device for gravure press

Abstract

The printing plate roller lubricating device comprises multiple sets of racks, a manual pump, a first high-temperature oil pipe, a second high-temperature oil pipe, a third high-temperature oil pipe and an oil distributing valve, multiple sets of adjusting valves are arranged on one side of the oil distributing valve, an oil outlet is formed in the other side of the oil distributing valve, an oil inlet is formed in one end of the oil distributing valve, and an oil outlet is formed in the other end of the oil distributing valve. The manual pump is installed on one side of the rack and detachably connected with the rack, the oil distributing valve is installed on the portion, on one side of the manual pump, of the rack and detachably connected with the rack, and the two ends of the first high-temperature oil pipe are installed on an oil inlet of the manual pump and an oil inlet of the oil distributing valve respectively. The multiple sets of oil outlets are provided with corresponding second high-temperature oil pipes and third high-temperature oil pipes correspondingly. The paper guide roller has the technical effect that sufficient lubrication is achieved between the paper guide roller and the bearing.

Description

Technical Field

[0001] This application relates to the technical field of printing equipment manufacturing, and in particular to a printing plate roller lubrication device for a gravure printing machine. Background Technology

[0002] In modern packaging, publishing and other industries, gravure printing presses have become one of the mainstream printing equipment due to their advantages such as high printing quality, bright colors and thick ink layers.

[0003] Currently, in the operation of gravure printing machines, the guide rollers of the frame need to rotate continuously and stably to transport paper. The original machine was not equipped with an automatic lubrication device, and it has long relied on manual lubrication at irregular intervals. This has led to insufficient lubrication between the guide rollers and bearings, aggravated wear, and frequent equipment failures. This not only increases maintenance costs but also seriously affects production continuity and reduces the effective operating rate of the equipment.

[0004] Regarding the aforementioned technologies, the applicant believes that there is a defect in the lack of lubrication between the paper guide roller and the bearing due to irregular manual lubrication. Utility Model Content

[0005] To solve the above-mentioned technical problems, this application provides a printing plate roller lubrication device for a gravure printing machine.

[0006] This application provides a printing plate roller lubrication device for a gravure printing machine, which adopts the following technical solution:

[0007] A printing plate roller lubrication device for a gravure printing machine includes multiple sets of frames, a manual pump, a first high-temperature oil pipe, a second high-temperature oil pipe, a third high-temperature oil pipe, and an oil distribution valve. The oil distribution valve has multiple sets of regulating valves on one side and an oil outlet on the other side. One end of the oil distribution valve has an oil inlet. The manual pump is mounted on one side of the frame and is detachably connected to the frame. The oil distribution valve is mounted on the frame on the side of the manual pump and is detachably connected to the frame. The two ends of the first high-temperature oil pipe are respectively installed on the inlet of the manual pump and the oil distribution valve. The multiple sets of oil outlets are respectively connected to the corresponding second and third high-temperature oil pipes.

[0008] By adopting the above technical solution, the manual pump, the oil distribution valve and the frame are all detachably connected, as are the first high-temperature oil pipe, the second high-temperature oil pipe and the third high-temperature oil pipe and the inlet and outlet of the manual pump and the oil distribution valve. The oil distribution valve is equipped with multiple sets of regulating valves on one side, an oil outlet on the other side and an oil inlet at one end, integrating the distribution and regulation functions of the oil circuit into one. The multiple sets of regulating valves on the oil distribution valve can adjust the oil volume and oil pressure of each set of oil outlets respectively, accurately controlling the oil volume distribution of each lubrication point, avoiding waste due to excessive oil volume or insufficient lubrication due to insufficient oil volume, improving lubrication efficiency and targeting, and ensuring sufficient lubrication between the paper guide roller and the bearing.

[0009] Preferably, the regulating valve and the oil outlet are both integrated on the oil distribution valve, and each regulating valve independently controls a dedicated flow channel directly connected to the corresponding oil outlet.

[0010] By adopting the above technical solution, each group of regulating valves corresponds to an independent flow channel, directly controlling the oil volume of the corresponding oil outlet. When adjusting a certain regulating valve, it will not affect the oil pressure and flow rate of other flow channels, thus avoiding uneven lubrication caused by mutual interference of multiple oil channels.

[0011] Preferably, the other end of both the second and third high-temperature oil pipes is provided with a skeleton oil seal, and the skeleton oil seal is detachably connected to the second and third high-temperature oil pipes.

[0012] By adopting the above technical solution, the skeleton oil seal usually contains a metal skeleton and an elastic sealing lip, which can closely fit the surface of the interface and oil outlet of the second and third high-temperature oil pipes to form a dynamic or static seal.

[0013] Preferably, sealing gaskets are provided at the connection points of the first high-temperature oil pipe, the second high-temperature oil pipe, and the third high-temperature oil pipe, and the sealing gaskets are fixedly connected to the first high-temperature oil pipe, the second high-temperature oil pipe, and the third high-temperature oil pipe.

[0014] By adopting the above technical solution, the sealing gasket can tightly fill the tiny gaps between the first, second, and third high-temperature oil pipes and components such as the oil distributor and manual pump, forming a static sealing barrier to prevent lubricating oil from leaking from the connection.

[0015] Preferably, it also includes a base plate, with the two sets of frames mounted on both sides of the base plate, the frames being fixedly connected to the base plate, the frames having multiple bearing holes, one end of the skeleton oil seal being installed on the outside of the bearing hole, and the skeleton oil seal being connected to the bearing hole.

[0016] Preferably, the two sets of frames are provided with bearing devices, paper guide rollers and motors at the corresponding bearing holes. The two ends of the paper guide rollers are mounted on the two sets of frames through the bearing devices. The bearing devices are rotatably connected to the paper guide rollers and are directly connected to the bearing holes. The motors are mounted on the frame at one end of the paper guide rollers and are directly connected to the paper guide rollers. The motors provide rotational power to the paper guide rollers.

[0017] By adopting the above technical solution, the paper guide roller, bearing device and motor are directly installed at the bearing hole of the frame. The bearing device is directly installed in the bearing hole of the frame. The machining accuracy of the bearing hole can ensure the coaxiality of the bearings at both ends of the paper guide roller, avoid vibration or abnormal noise caused by eccentricity when the paper guide roller rotates, and ensure the stability of paper feeding.

[0018] Preferably, an oil storage device is provided between the skeleton oil seal and the bearing hole. One end of the oil storage device is installed on the bearing hole, and the oil storage device is detachably connected to the bearing hole. The bearing hole is detachably connected to the oil storage device, and the skeleton oil seal is installed on the top of the oil storage device. The skeleton oil seal is detachably connected to the oil storage device.

[0019] By adopting the above technical solution, the oil storage device is installed between the bearing hole and the skeleton oil seal. The oil storage device can store a certain amount of lubricating oil, and the lubricating oil in the oil storage device can still provide continuous lubrication for the bearing.

[0020] Preferably, the shaft of the paper guide roller passes through the oil storage device and is connected to the motor. An auxiliary bearing is provided between the oil storage device and the paper guide roller. The paper guide roller and the oil storage device are rotatably connected. An oil drain valve is provided at the bottom of the oil storage device and is fixedly connected to the oil storage device.

[0021] By adopting the above technical solution, the paper guide roller is connected to the motor through bearings and an oil storage device. The oil storage device can store lubricating oil to form an independent closed lubrication chamber. The lubricating oil continuously wets the paper guide roller shaft and auxiliary bearing. The oil drain valve at the bottom of the oil storage device can quickly drain the old oil inside, which is convenient for regular replacement of lubricating oil and avoids lubrication failure caused by oil aging and contamination.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The manual pump, oil distributor valve and frame are connected in a detachable manner, as are the first high-temperature oil pipe, the second high-temperature oil pipe and the third high-temperature oil pipe and the inlet and outlet of the manual pump and oil distributor valve. The oil distributor valve is equipped with multiple sets of regulating valves on one side, an outlet on the other side and an inlet at one end, integrating the distribution and regulation functions of the oil circuit. The multiple sets of regulating valves on the oil distributor valve can adjust the oil volume and oil pressure of each outlet separately, accurately controlling the oil volume distribution of each lubrication point, avoiding waste due to excessive oil volume or insufficient lubrication due to insufficient oil volume, improving lubrication efficiency and targeting, and ensuring sufficient lubrication between the paper guide roller and the bearing.

[0024] 2. The paper guide roller is connected to the motor through bearings and an oil storage device. The oil storage device can store lubricating oil to form an independent closed lubrication chamber. The lubricating oil continuously wets the paper guide roller shaft and auxiliary bearing. The oil drain valve at the bottom of the oil storage device can quickly drain the old oil inside, which is convenient for regular replacement of lubricating oil and avoids lubrication failure caused by oil aging and contamination. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall mechanism in the embodiment.

[0026] Figure 2 This is a schematic diagram of the oil separator valve and bearing hole structure in the embodiment.

[0027] Figure 3 This is a schematic diagram of the oil storage device and auxiliary bearing structure in the embodiment.

[0028] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Bearing hole; 111. Oil storage device; 1111. Auxiliary bearing; 1112. Oil drain valve; 12. Bearing assembly; 13. Guide roller; 14. Electric motor; 2. Manual pump; 3. First high-temperature oil pipe; 4. Second high-temperature oil pipe; 5. Third high-temperature oil pipe; 6. Oil distributor valve; 61. Regulating valve; 62. Oil outlet; 63. Oil inlet; 7. Skeleton oil seal; 8. Sealing gasket; 9. Base plate. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0030] This application discloses a lubrication device for a printing plate roller in a gravure printing machine. (Refer to...) Figure 1-3 The system includes multiple sets of frames 1, a manual pump 2, a first high-temperature oil pipe 3, a second high-temperature oil pipe 4, a third high-temperature oil pipe 5, and an oil distributor 6. Multiple regulating valves 61 are installed on one side of the oil distributor 6, and an oil outlet 62 is installed on the other side. Both the regulating valves 61 and the oil outlet 62 are integrated into the oil distributor 6. Each regulating valve 61 independently controls a dedicated flow channel directly connected to the corresponding oil outlet 62. An oil inlet 63 is installed at one end of the oil distributor 6 and is fixedly connected to it. Both ends of the first high-temperature oil pipe 3 are respectively threaded to the manual pump 2 and the oil inlet 63 of the oil distributor 6. At the oil outlet 62, multiple sets of oil outlets 62 are respectively connected to the corresponding second high-temperature oil pipe 4 and third high-temperature oil pipe 5 by thread. The regulating valve 61 regulates the oil volume and oil pressure of the oil outlet 62, and precisely controls the oil volume distribution of each lubrication point, so that the paper guide roller 13 and the bearing device 12 are sufficiently lubricated. At the other end of the second high-temperature oil pipe 4 and the third high-temperature oil pipe 5 installed at the oil outlet 62, a skeleton oil seal 7 is provided. The skeleton oil seal 7 is connected to the second high-temperature oil pipe 4 and the third high-temperature oil pipe 5 by thread. A sealing gasket 8 is fixedly connected at the connection of the first high-temperature oil pipe 3, the second high-temperature oil pipe 4 and the third high-temperature oil pipe 5.

[0031] It also includes a base plate 9, with two sets of frames 1 mounted on both sides of the base plate 9. The frames 1 are fixedly connected to the base plate 9. Multiple bearing holes 11 are provided on the frames 1. Bearing devices 12, guide rollers 13, and motors 14 are installed at the corresponding bearing holes 11 of the two sets of frames 1. The guide rollers 13 are mounted on the bearing holes 11 via the bearing devices 12 and are rotatably connected to the frames 1. Two sets of oil storage devices 111 are provided on the outside of the bearing holes 11 of the frames 1. One end of one set of oil storage devices 111 is bolted to the bearing hole 11, and the upper end of the oil storage device 111 is connected to the skeleton oil seal 7, allowing lubricating oil to enter the oil storage device 111 to lubricate the bearing devices 12. An oil drain valve 1112 is provided on the lower side of the device 111. The oil drain valve 1112 is fixedly connected to the oil storage device 111. On the other side of the frame 1, the shaft of the guide roller 13 passes through another set of oil storage devices 111, so that the outer side of the oil storage device 111 is provided with an auxiliary bearing 1111, which is rotatably connected to the guide roller 13. The base of the motor 14 is bolted to the frame 1. The working end of the motor 14 is directly connected to the guide roller 13. The motor 14 provides rotation for the guide roller 13. The oil storage device 111 can store lubricating oil inside, which continuously wets the bearing device 12 and the auxiliary bearing 1111. The oil drain valve 1112 at the bottom of the oil storage device 111 can quickly drain the old oil inside.

[0032] The working principle of the printing plate roller lubrication device for a gravure printing machine in this application is as follows: A manual pump 2 is installed on one side of the frame 1. Oil pressure is generated through manual operation, drawing lubricating oil from the oil tank. The lubricating oil is delivered from the manual pump 2 to the oil inlet 63 of the oil distribution valve 6 via a first high-temperature oil pipe 3. The first high-temperature oil pipe 3 is threadedly connected to the manual pump 2 and the oil inlet 63. A sealing gasket 8 is provided at the connection of the first high-temperature oil pipe 3 to prevent oil leakage and ensure the oil circuit is sealed. The lubricating oil reaches the internal flow channel through the oil inlet 63. Multiple sets of regulating valves 61 are provided on one side of the oil distribution valve 6, each independently controlling a dedicated flow channel directly connected to the corresponding oil outlet 62. The flow rate of the lubricating oil is precisely controlled by adjusting the regulating valves 61. The ends of the first high-temperature oil pipe 3 and the second high-temperature oil pipe 4, which are connected to the oil outlet 62, are equipped with… A skeleton oil seal 7 is provided, and a sealing gasket 8 is also provided at the connection between the first high-temperature oil pipe 3 and the second high-temperature oil pipe 4. The skeleton oil seal 7 is installed on the oil storage device 111 on the outside of the bearing hole 11 of the frame 1. The oil storage device 111 is installed between the bearing hole 11 and the skeleton oil seal 7, and can store a certain amount of lubricating oil to continuously lubricate the bearing device 12. The two ends of the guide roller 13 are installed in the bearing hole 11 of the frame 1 through the bearing device 12. The motor 14 directly drives the guide roller 13 to rotate. At the connection between the guide roller 13 and the motor 14, the shaft of the guide roller 13 passes through the oil storage device 111 and is connected to the motor 14. An auxiliary bearing 1111 is installed on the outside of the oil storage device 111 to support the rotation of the guide roller 13. At the same time, the oil drain at the bottom of the oil storage device 111 can discharge excess lubricating oil and impurities.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A printing plate cylinder lubricating device for a gravure printing press, characterized by: The system includes multiple sets of frames (1), a manual pump (2), a first high-temperature oil pipe (3), a second high-temperature oil pipe (4), a third high-temperature oil pipe (5), and an oil distribution valve (6). The oil distribution valve (6) has multiple sets of regulating valves (61) on one side and an oil outlet (62) on the other side. The oil distribution valve (6) has an oil inlet (63) at one end. The manual pump (2) is installed on one side of the frame (1) and is detachably connected to the frame (1). The oil distribution valve (6) is installed on the frame (1) on one side of the manual pump (2) and is detachably connected to the frame (1). The two ends of the first high-temperature oil pipe (3) are respectively installed on the oil inlet (63) of the manual pump (2) and the oil distribution valve (6). The multiple sets of oil outlets (62) are respectively installed on the corresponding second high-temperature oil pipe (4) and third high-temperature oil pipe (5).

2. The printing plate roller lubrication device for a gravure printing machine according to claim 1, characterized in that: The regulating valve (61) and the oil outlet (62) are both integrated on the oil distribution valve (6). Each regulating valve (61) independently controls a dedicated flow channel directly connected to the corresponding oil outlet (62).

3. A printing plate cylinder lubricating device for a gravure printing press according to claim 1, characterized in that: The other end of the second high-temperature oil pipe (4) and the third high-temperature oil pipe (5) are provided with a skeleton oil seal (7), and the skeleton oil seal (7) is detachably connected to the second high-temperature oil pipe (4) and the third high-temperature oil pipe (5).

4. The printing plate cylinder lubricating apparatus for a gravure printing machine according to claim 1, wherein: Sealing gaskets (8) are provided at the connection points of the first high-temperature oil pipe (3), the second high-temperature oil pipe (4), and the third high-temperature oil pipe (5). The sealing gaskets (8) are fixedly connected to the first high-temperature oil pipe (3), the second high-temperature oil pipe (4), and the third high-temperature oil pipe (5).

5. A printing plate roller lubrication device for a gravure printing machine according to claim 3, characterized in that: It also includes a base plate (9), two sets of the frame (1) are installed on both sides of the base plate (9), the frame (1) is fixedly connected to the base plate (9), the frame (1) is provided with multiple bearing holes (11), one end of the skeleton oil seal (7) is installed on the outside of the bearing hole (11), and the skeleton oil seal (7) is connected to the bearing hole (11).

6. A printing plate roller lubrication device for a gravure printing machine according to claim 5, characterized in that: Bearing devices (12), paper guide rollers (13), and motors (14) are provided at the corresponding bearing holes (11) of the two sets of frames (1). The two ends of the paper guide rollers (13) are mounted on the two sets of frames (1) through the bearing devices (12). The bearing devices (12) are rotatably connected to the paper guide rollers (13). The bearing devices (12) are directly connected in the bearing holes (11). The motors (14) are mounted on the frame (1) at one end of the paper guide rollers (13). The motors (14) are directly connected to the paper guide rollers (13). The motors (14) provide rotational power to the paper guide rollers (13).

7. A printing plate roller lubrication device for a gravure printing machine according to claim 5, characterized in that: An oil storage device (111) is provided between the skeleton oil seal (7) and the bearing hole (11). One end of the oil storage device (111) is installed on the bearing hole (11). The oil storage device (111) and the bearing hole (11) are detachably connected. The bearing hole (11) and the oil storage device (111) are detachably connected. The skeleton oil seal (7) is installed on the top of the oil storage device (111). The skeleton oil seal (7) and the oil storage device (111) are detachably connected.

8. A printing plate cylinder lubricating device for a gravure printing press according to claim 6, characterized in that: The shaft of the guide roller (13) passes through the oil storage device (111) and is connected to the motor (14). An auxiliary bearing (1111) is provided between the oil storage device (111) and the guide roller (13). The guide roller (13) and the oil storage device (111) are rotatably connected. An oil drain valve (1112) is provided at the bottom of the oil storage device (111), and the oil drain valve (1112) is fixedly connected to the oil storage device (111).

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