Illuminating device for high-speed printing machine

Abstract

The invention belongs to the technical field of printing lighting, and discloses a lighting device for a high-speed printer, the lighting device comprises a machine body, the machine body is provided with a printing cavity, and the top of the printing cavity is provided with a lighting structure; the lighting structure comprises a lampshade, a mounting plate, a mounting frame, a lighting lamp, a moving plate, an adjusting structure, a moving structure and a light supplementing lamp, the lampshade is arranged at the bottom of the printing cavity, the mounting plate is fixedly mounted in the lampshade, and the mounting frame is arranged at the bottom of the mounting plate. A first motor drives a rotating rod, a first fixing plate and a fixing rod to rotate, so that a lampshade drives an illuminating lamp to rotate to adjust the angle, the illuminating angle can be adjusted in time during printing operation, meanwhile, light of the illuminating lamp is partially shielded by adjusting the angle of a baffle, and the light is focused on a key position through an adjusting opening; through local illumination, corresponding conditions can be observed more clearly and carefully to find out problems occurring in printing, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of printing lighting, and particularly relates to a lighting device for a high-speed printing press. Background Art

[0002] A high-speed printing press is a device designed to quickly and efficiently complete printing tasks. They usually have a high printing speed and can complete a large amount of printing work in a short time. A printing press generally consists of mechanisms such as plate loading, inking, impression, and paper feeding. The text and images to be printed are made into printing plates and installed on the printing press. Then, ink is applied to the areas with text and images on the printing plate manually or by the printing press, and then directly or indirectly transferred to paper or other printing substrates (such as textiles, metal plates, plastics, leather, wood boards, glass, and ceramics), thereby replicating the same printed matter as the printing plate. During operation, lighting equipment provides sufficient lighting for the operation of the printing press to ensure that the operator can clearly see the details during the printing process, thereby improving work efficiency and printing quality.

[0003] However, in the prior art, the lighting angle cannot be adjusted in time during printing operation to focus on the key parts of printing, and it is easy to be distracted by the light in other non-key areas, which is not conducive to timely discovering and solving problems occurring during the printing process, reducing printing quality and work efficiency. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention proposes the following technical solution: A lighting device for a high-speed printing press, including a machine body, the machine body is provided with a printing cavity, and a lighting structure is arranged at the top of the printing cavity;

[0005] The lighting structure includes a lamp cover, a mounting plate, a mounting frame, a lighting lamp, a moving plate, an adjusting structure, a moving structure, and a supplementary light. The lamp cover is arranged at the bottom of the printing cavity, the mounting plate is fixedly installed inside the lamp cover, the mounting frame is arranged at the bottom of the mounting plate, the lighting lamp is fixedly installed at the bottom end of the mounting frame, an adjusting structure is arranged between the top of the mounting frame and the top of the lamp cover, an adjusting opening is formed at the top of the lamp cover, the moving plate is arranged at the top of the adjusting opening, a moving structure is arranged on one side of the moving plate, and supplementary lights are arranged on both sides of the lamp cover and are fixedly installed on the inner wall of the top of the printing cavity.

[0006] Preferably, as the above technical solution, a moving groove is formed at the top of the printing cavity and inside the machine body, the adjusting structure is located inside the moving groove, both the lamp cover and the moving plate are made of transparent materials, a protective door is arranged on one side of the lamp cover, there are two moving plates, and connecting blocks are fixedly installed on the sides of the two moving plates away from the moving structure, and one side of the connecting block is slidably connected to the inner wall of the lamp cover.

[0007] Preferably, as the above technical solution, the adjustment structure includes a first motor, a rotating rod, a first fixing plate, a fixed rod, an electric push rod, a second fixing plate, a baffle, a second motor and a movable rod;

[0008] On one inner wall of the moving groove, a first motor is fixedly installed. The output end of the first motor is drivingly connected to a rotating rod. One side of the rotating rod is rotatably connected to the inner wall of the moving groove. A first fixing plate is fixedly installed on the rotating rod. Two electric push rods are fixedly installed at the bottom of the first fixing plate. A second fixing plate is fixedly installed at the bottoms of the two electric push rods. Four corners at the bottom of the first fixing plate are fixedly installed with fixed rods. The fixed rods pass through the second fixing plate and are fixedly installed with the top of the lamp cover. Both ends of the bottom of the second fixing plate are rotatably connected to movable rods. A second motor is fixedly installed on one side of the movable rod. A baffle is fixedly connected to the bottom of the movable rod.

[0009] Preferably, as the above technical solution, a first telescopic plate is fixedly installed on one side of the second motor. A second telescopic plate is rotatably connected to one side of the movable rod. The bottom end of the first telescopic plate is fixedly installed with the rotating rod. The top of the second telescopic plate is fixedly installed with the bottom of the first fixing plate. Both the second motor and the movable rod are located on one side of the fixed rod. One sides of the first telescopic plate and the second telescopic plate are both movably connected to the inner wall of the moving groove.

[0010] Preferably, as the above technical solution, the moving structure includes a third motor, a threaded rod, a limiting plate, a movable plate and a pushing plate. A third motor is fixedly installed on one inner wall of the lamp cover. The output end of the third motor is drivingly connected to a threaded rod. One side of the threaded rod is rotatably connected to a limiting plate. A movable plate is threadedly connected to one end of the threaded rod close to the third motor. The bottom of the movable plate is slidably connected to the inner bottom wall of the lamp cover. Pushing plates are hinged to both sides of the movable plate. One end of the pushing plate is hinged to one side of the moving plate.

[0011] Preferably, as the above technical solution, the bottom of the limiting plate is fixedly installed with the inner bottom wall of the lamp cover. The moving plate is movably connected to the inner top wall of the lamp cover. The third motor, the threaded rod, the limiting plate, the movable plate and the pushing plate are all located on one side of the moving plate away from the connecting block. The threaded rod, the limiting plate, the movable plate, the pushing plate and the moving plate are all located on the top of the mounting frame.

[0012] Preferably, as the above technical solution, the mounting plate, the mounting frame and the lighting lamp are located in the middle of the lamp cover. The baffle is located on both sides of the top of the mounting frame. A cold air box is fixedly installed on the top of the second fixing plate. The cold air box is located between the two electric push rods. Cold air is provided inside the cold air box. A delivery pipe is fixedly installed at the bottom of the cold air box. One end of the delivery pipe passes through the second fixing plate and is fixedly installed with a storage block. One side of the storage block is fixedly installed with the baffle. A cooling pipe is fixedly installed on one side of the storage block and is distributed in a linear array on one side of the storage block. A control valve is fixedly installed at one end of the cooling pipe. The storage block, the baffle and the cooling pipe are symmetrically arranged with the center of the second fixing plate as the center.

[0013] As a preference of the above technical solution, limiting structures are provided on both sides of the mounting frame. The limiting structure includes an adjusting plate, a limiting rod, a moving rod and a pulling block;

[0014] Adjusting plates are provided on both sides of the mounting frame. Two limiting rods are fixedly installed on one side of the adjusting plate. The upper limiting rod passes through one side of the mounting frame and extends to the top of the lighting lamp. The lower limiting rod is inserted into one side of the mounting frame. A moving rod is fixedly installed on the side of the adjusting plate away from the limiting rod. One end of the moving rod passes through the lamp shade and is fixedly installed with a pulling block.

[0015] As a preference of the above technical solution, a limiting block is fixedly installed on the top of the mounting frame. The limiting block is inserted into the bottom of the mounting plate. A compression spring is sleeved on the outer side of the moving rod. One end of the compression spring is fixedly installed with the adjusting plate, and the other side is fixedly installed with the inner wall of the lamp shade. The top of the adjusting plate is movably connected to the bottom of the second fixing plate. The adjusting plate, the limiting rod, the moving rod and the pulling block are symmetrically arranged with the center of the mounting frame as the center.

[0016] The beneficial effects of the present invention are as follows:

[0017] (1) In the present invention, the first motor drives the rotation of the rotating rod, the first fixing plate and the fixing rod, so that the lamp shade drives the lighting lamp to rotate and adjust the angle. The lighting angle can be adjusted in time during the printing operation. At the same time, the light of the lighting lamp is partially blocked by adjusting the angle of the baffle, and it is focused on the key part through the adjusting port. Through local illumination, the corresponding situation can be observed more clearly and carefully to find problems in printing, and the attention will not be distracted by the light in other non-key areas, which helps to accurately control the printing quality and improve work efficiency;

[0018] (2) In the present invention, the outside of the lighting lamp is cooled to prevent deformation of components caused by the high temperature of the just-turned-off lighting lamp during disassembly when the lighting lamp is damaged and needs to be replaced, thereby facilitating the timely replacement of the damaged lighting lamp and improving the replacement efficiency. At the same time, through the action of the limiting rod and the inserting block, the stability of disassembly and replacement is improved. Description of the Drawings

[0019] Figure 1 Shows the overall structural schematic diagram of the embodiment;

[0020] Figure 2 Shows the internal structural diagram of the printing cavity of the embodiment;

[0021] Figure 3 Shows the sectional view of the body of the embodiment;

[0022] Figure 4 Shows the structural diagram of the adjusting structure and the lamp shade of the embodiment;

[0023] Figure 5Shown is the structural diagram of the second fixing plate, electric push rod, baffle and lamp cover in the embodiment;

[0024] Figure 6 Shown is the sectional view of the lamp cover in the embodiment;

[0025] Figure 7 Shown is the structural diagram of the top of the second fixing plate in the embodiment;

[0026] Figure 8 Shown is the internal structural diagram of the lamp cover in the embodiment;

[0027] Figure 9 Shown is the structural diagram of the moving structure in the embodiment.

[0028] In the figure: 1, body; 2, lamp cover; 3, mounting plate; 4, mounting bracket; 5, illuminating lamp; 6, moving plate; 7, supplementary light; 8, protective door; 9, first motor; 10, rotating rod; 11, first fixing plate; 12, fixing rod; 13, electric push rod; 14, second fixing plate; 15, baffle; 16, second motor; 17, movable rod; 18, first telescopic plate; 19, second telescopic plate; 20, third motor; 21, threaded rod; 22, movable plate; 23, pushing plate; 24, cold air box; 25, delivery pipe; 26, storage block; 27, cooling pipe; 28, adjusting plate; 29, limiting rod; 30, moving rod; 31, pulling block; 32, limiting block. Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0030] The present invention provides an illumination device for a high-speed printing machine, as Figure 1 , Figure 2 , Figure 3 , Figure 8 shown, including a body 1. The body 1 is provided with a printing cavity, and an illumination structure is arranged at the top of the printing cavity;

[0031] The illumination structure includes a lamp cover 2, a mounting plate 3, a mounting bracket 4, an illuminating lamp 5, a moving plate 6, an adjusting structure, a moving structure and a supplementary light 7. The lamp cover 2 is arranged at the bottom of the printing cavity. The mounting plate 3 is fixedly installed inside the lamp cover 2. The mounting bracket 4 is arranged at the bottom of the mounting plate 3. The illuminating lamp 5 is fixedly installed at the bottom end of the mounting bracket 4. An adjusting structure is arranged between the top of the mounting bracket 4 and the top of the lamp cover 2. An adjusting opening is formed at the top of the lamp cover 2. The moving plate 6 is arranged at the top of the adjusting opening. A moving structure is arranged on one side of the moving plate 6. Supplementary lights 7 are arranged on both sides of the lamp cover 2. The supplementary lights 7 are fixedly installed on the inner wall of the top of the printing cavity.

[0032] It is connected to the mounting frame 4 through the mounting plate 3, so that the lighting lamp 5 on the mounting frame 4 can be installed inside the lamp shade 2 through the mounting plate 3. The lamp shade 2 can protect the lighting lamp 5 from being damaged and reduce the adhesion of dust. When the machine body 1 performs printing, the use effect of the lighting lamp 5 inside the printing cavity can be improved. The moving structure drives the moving plate 6 to move towards both sides inside the lamp shade 2 to expose the adjustment opening. At the same time, through the movement of the adjustment structure, the lamp shade 2 drives the lighting lamp 5 to be adjusted to different angles, and the light beam of the lighting lamp 5 can be focused on the key parts through the adjustment opening, enabling the operator to observe the corresponding situation more clearly and carefully, and timely discover problems such as uneven ink and deviation in overprinting during printing, without being distracted by the light in other non-critical areas, which helps to accurately control the printing quality and improve work efficiency. After the lighting lamp 5 focuses on a specific part, by adjusting the brightness of the supplementary lighting lamp 7, other parts can still be clearly seen during printing, without affecting the printing operation.

[0033] As Figures 2 to 3 shown, a moving groove is opened at the top of the printing cavity and inside the machine body 1. The adjustment structure is located inside the moving groove. Both the lamp shade 2 and the moving plate 6 are made of transparent materials. A protective door 8 is provided on one side of the lamp shade 2. The number of moving plates 6 is two. Connecting blocks are fixedly installed on the sides of the two moving plates 6 away from the moving structure, and one side of the connecting block is slidably connected to the inner wall of the lamp shade 2.

[0034] By opening the protective door 8, it is convenient to take out the damaged lighting lamp 5 inside the lamp shade 2 for replacement. Through the moving groove, it is convenient for the adjustment structure to move, so as to drive the lamp shade 2 and the lighting lamp 5 to rotate and adjust the angle according to different parts. When the moving structure moves, it drives the moving plate and the connecting block to move along the inner wall of the lamp shade 2, improving the stability of the movement of the moving plate 6 and exposing the adjustment opening, so that the lighting lamp 5 can be focused on the key parts and illuminate the local area that is currently being operated and needs to be focused on. Especially during long-term continuous printing operations, it can reduce the power consumption of lighting to a certain extent, helping to reduce the printing cost. At the same time, while protecting the lighting lamp 5 through the transparent lamp shade 2 and the moving plate 6, it will not affect the lighting effect of the lighting lamp 5 under normal circumstances.

[0035] As Figure 3 、 Figure 4 、 Figure 5 、 Figure 8 shown, the adjustment structure includes a first motor 9, a rotating rod 10, a first fixing plate 11, a fixing rod 12, an electric push rod 13, a second fixing plate 14, a baffle 15, a second motor 16 and a movable rod 17;

[0036] A first motor 9 is fixedly installed on the inner wall of one side of the moving groove. The output end of the first motor 9 is drivingly connected to a rotating rod 10. One side of the rotating rod 10 is rotatably connected to the inner wall of the moving groove. A first fixing plate 11 is fixedly installed on the rotating rod 10. Two electric push rods 13 are fixedly installed at the bottom of the first fixing plate 11. A second fixing plate 14 is fixedly installed at the bottom of the two electric push rods 13. Fixing rods 12 are fixedly installed at the four corners of the bottom of the first fixing plate 11. The fixing rods 12 pass through the second fixing plate 14 and are fixedly installed with the top of the lamp cover 2. Rotating rods 17 are rotatably connected to the bottoms of both ends of the second fixing plate 14. A second motor 16 is fixedly installed on one side of the rotating rod 17. A baffle 15 is fixedly connected to the bottom of the rotating rod 17.

[0037] When it is necessary to adjust the angle of the lighting lamp 5, start the first motor 9 to drive the rotating rod 10 to rotate along the inside of the moving groove, so that the rotating rod 10 drives the first fixing plate 11, the two electric push rods 13, the second fixing plate 14 and the baffle 15 to rotate simultaneously. Through the action of the fixing rod 12, the lamp cover 2 can also rotate together with the first motor 9, so that the lighting lamp 5 inside the lamp cover 2 rotates to a suitable position. Then start the electric push rod 13 to push the second fixing plate 14, the second motor 16, the rotating rod 17 and the baffle 15 to move downward, so that the baffle 15 moves into the lamp cover 2 and is located on both sides of the mounting frame 4 and the lighting lamp 5. Then start the two second motors 16 respectively to drive the rotating rods 17 to rotate, so that the rotating rods 17 drive the baffle 15 to rotate simultaneously, and the two baffles 15 are rotated to be inclined on both sides of the lamp cover 2 to block the light of the lighting lamp 5. Then drive the moving plate 6 to move through the moving structure to expose the adjustment opening, so that the lighting lamp 5 can adjust the angle according to different parts, and the light beam of the lighting lamp 5 is focused on the key part, and the corresponding situation can be observed more clearly and carefully to find the problems occurring in printing, and the printing effect is improved.

[0038] As Figures 3 to 5 shown, a first telescopic plate 18 is fixedly installed on one side of the second motor 16. A second telescopic plate 19 is rotatably connected to one side of the rotating rod 17. The bottom end of the first telescopic plate 18 is fixedly installed with the rotating rod 10. The top of the second telescopic plate 19 is fixedly installed with the bottom of the first fixing plate 11. The second motor 16 and the rotating rod 17 are both located on one side of the fixing rod 12. One sides of the first telescopic plate 18 and the second telescopic plate 19 are both movably connected to the inner wall of the moving groove.

[0039] The first connecting plate facilitates the installation of the second motor 16. The first connecting plate, the second connecting plate and the first fixing plate 11 are connected, thereby improving the stability of the second motor 16 during installation. And when the second motor 16 drives the movable rod 17 and the baffle 15 to rotate, the movable rod 17 can rotate along the second connecting plate, improving the stability of the rotation of the first fixing plate 14. When the angle of the lighting lamp 5 does not need to be adjusted, the electric push rod 13 is used to push the second fixing plate 14 downward, so that the first telescopic plate 18 and the second telescopic plate 19 extend and move downward along the inner wall of the moving groove, so that the baffle 15 can move from the moving groove to the inside of the lamp cover 2 and move to both sides of the lighting lamp 5. Then, the second motor 16 drives the movable rod 17 and the baffle 15 to rotate, adjusting the angle of the baffle 15, thereby blocking the lighting lamp 5 and adjusting the light of the lighting lamp 5 so that it can gather on the key parts from the adjustment port, facilitating the observation of the printing situation.

[0040] As Figure 5 , Figure 8 , Figure 9 shown, the moving structure includes a third motor 20, a threaded rod 21, a limiting plate, a movable plate 22 and a pushing plate 23. A third motor 20 is fixedly installed on the inner wall of one side of the lamp cover 2. The output end of the third motor 20 is drivingly connected with a threaded rod 21. One side of the threaded rod 21 is rotationally connected with a limiting plate. The threaded rod 21 is threadedly connected with a movable plate 22 near one end of the third motor 20. The bottom of the movable plate 22 is slidably connected with the inner wall of the bottom of the lamp cover 2. Pushing plates 23 are hinged on both sides of the movable plate 22. One end of the pushing plate 23 is hinged with one side of the moving plate 6. The bottom of the limiting plate is fixedly installed on the inner wall of the bottom of the lamp cover 2. The moving plate 6 is movably connected with the inner wall of the top of the lamp cover 2. The third motor 20, the threaded rod 21, the limiting plate, the movable plate 22 and the pushing plate 23 are all located on the side of the moving plate 6 away from the connecting block. The threaded rod 21, the limiting plate, the movable plate 22, the pushing plate 23 and the moving plate 6 are all located on the top of the mounting frame 4.

[0041] After the baffle 15 moves into the lamp cover 2 and the angle adjustment is completed, the third motor 20 is started to drive the threaded rod 21 to rotate along the limiting plate, so that the movable plate 22 moves along the bottom of the lamp cover 2 in a direction away from the third motor 20, and the pushing plate 23 is pushed to rotate. The pushing plate 23 drives the moving plate 6 to move to both sides of the adjustment port, exposing the adjustment port. Thus, it is convenient for the light blocked by the lighting lamp 5 to be focused on the key parts from the adjustment port, and according to the actual observation needs, unnecessary direct light can be avoided from shining into the eyes to produce glare, creating a relatively comfortable visual observation environment, enabling the operator to perform printing operations and quality control more attentively and efficiently.

[0042] As Figure 4 , Figure 5 , Figure 7As shown, the mounting plate 3, the mounting bracket 4 and the lighting lamp 5 are located in the middle of the lamp cover 2. The baffle 15 is located on both sides of the top of the mounting bracket 4. A cold air box 24 is fixedly installed at the top of the second fixing plate 14. The cold air box 24 is located between the two electric push rods 13. Cold air is provided inside the cold air box 24. A delivery pipe 25 is fixedly installed at the bottom of the cold air box 24. One end of the delivery pipe 25 passes through the second fixing plate 14 and is fixedly installed with a storage block 26. One side of the storage block 26 is fixedly installed with the baffle 15. A cooling pipe 27 is fixedly installed on one side of the storage block 26. The cooling pipes 27 are linearly arrayed on one side of the storage block 26. A control valve is fixedly installed at one end of the cooling pipe 27. The storage block 26, the baffle 15 and the cooling pipes 27 are symmetrically arranged with the center of the second fixing plate 14 as the center.

[0043] When the lighting lamp 5 is damaged and needs to be replaced, start the electric push rod 13 to drive the first fixing plate 11 and the baffle 15 to move downward, so that the baffle 15 moves to both sides of the lighting lamp 5. Then start the control valve to deliver the cold air inside the cold air box 24 to the inside of the storage block 26 through the delivery pipe 25, and then blow it to the lighting lamp 5 through the cooling pipes 27 to cool down the lighting lamp 5, preventing the just-turned-off lighting lamp 5 from being in a high temperature state. Direct contact or operation may cause burns, and it is easy to cause damage such as component deformation when disassembling at a high temperature state, thus facilitating quick replacement and improving the replacement efficiency.

[0044] As Figures 4 to 6 shown, limiting structures are provided on both sides of the mounting bracket 4. The limiting structures include adjusting plates 28, limiting rods 29, moving rods 30 and pulling blocks 31;

[0045] Adjusting plates 28 are provided on both sides of the mounting bracket 4. Two limiting rods 29 are fixedly installed on one side of the adjusting plate 28. The upper limiting rod 29 passes through one side of the mounting bracket 4 and extends to the top of the lighting lamp 5. The lower limiting rod 29 is inserted into one side of the mounting bracket 4. A moving rod 30 is fixedly installed on the side of the adjusting plate 28 away from the limiting rod 29. One end of the moving rod 30 passes through the lamp cover 2 and is fixedly installed with a pulling block 31. A limiting block 32 is fixedly installed at the top of the mounting bracket 4. The limiting block 32 is inserted into the bottom of the mounting plate 3. A compression spring is sleeved on the outside of the moving rod 30. One end of the compression spring is fixedly installed with the adjusting plate 28, and the other side is fixedly installed with the inner wall of the lamp cover 2. The top of the adjusting plate 28 is movably connected to the bottom of the second fixing plate 14. The adjusting plates 28, the limiting rods 29, the moving rods 30 and the pulling blocks 31 are symmetrically arranged with the center of the mounting bracket 4 as the center.

[0046] When disassembly is required, open the protective door 8, move the pull blocks 31 to both sides away from the lamp shade 2, so that the pull blocks 31 drive the moving rods 30 and the adjusting plate 28 to move, stretching the compression spring. At the same time, the adjusting plate 28 drives the two limiting rods 29 away from the mounting bracket 4, no longer limiting the mounting bracket 4. Then move the mounting bracket 4 downward, so that the mounting bracket 4 drives the limiting block 32 to separate from the mounting plate 3. Then move the mounting bracket 4 with the cooled lighting lamp 5 out of the lamp shade 2 for replacement. After replacement, move the pull blocks 31 to both sides away from the lamp shade 2 again, so that the pull blocks 31 drive the moving rods 30 and the adjusting plate 28 to move, stretching the compression spring. At the same time, the adjusting plate 28 drives the two limiting rods 29 away from the mounting bracket 4, and put the replaced mounting bracket 4 and the lighting lamp 5 into the interior of the lamp shade 2, so that the limiting block 32 is inserted into the mounting plate 3, and the mounting bracket 4 and the lighting lamp 5 are installed inside the lamp shade 2. At the same time, release the pull blocks 31. Under the action of the compression spring, the adjusting plate 28 and the limiting rods 29 move to their original positions to limit the mounting bracket 4, improving the stability of the installation of the mounting bracket 4 and the lighting lamp 5.

[0047] Working principle: During use, when the machine body 1 is printing, turn on the lighting lamp 5 to facilitate observing the printing effect inside the printing chamber. When the angle of the lighting lamp 5 needs to be adjusted, start the first motor 9 to drive the rotating rod 10 to rotate along the inside of the moving groove, so that the rotating rod 10 drives the first fixing plate 11, the two electric push rods 13, the second fixing plate 14 and the baffle 15 to rotate simultaneously. Through the action of the fixing rod 12, the lamp shade 2 can also rotate together with the first motor 9, so that the lighting lamp 5 inside the lamp shade 2 rotates to a suitable position. Then start the electric push rod 13 to push the second fixing plate 14, the second motor 16, the movable rod 17 and the baffle 15 downward, so that the first telescopic plate 18 and the second telescopic plate 19 extend, and the baffle 15 moves into the interior of the lamp shade 2 and is located on both sides of the mounting bracket 4 and the lighting lamp 5. Then start the two second motors 16 respectively to drive the movable rods 17 to rotate, so that the movable rods 17 drive the baffle 15 to rotate simultaneously, and rotate the two baffles 15 to an inclined state on both sides of the lamp shade 2 to block part of the light of the lighting lamp 5. Start the third motor 20 to drive the threaded rod 21 to rotate along the limiting plate, so that the movable plate 22 moves along the bottom of the lamp shade 2 away from the third motor 20 and pushes the push plate 23 to rotate. The push plate 23 drives the movable plate 6 to move to both sides of the adjustment opening, exposing the adjustment opening, so that the light blocked by the lighting lamp 5 can be focused on the key parts from the adjustment opening, thus facilitating the observation of the relevant parts.

[0048] When the lighting lamp 5 is damaged and needs to be replaced, start the electric push rod 13 to drive the first fixing plate 11 and the baffle 15 to move downward, so that the baffle 15 moves to both sides of the lighting lamp 5. Then start the control valve to convey the cold air inside the cold air box 24 to the inside of the storage block 26 through the delivery pipe 25, and then blow it to the lighting lamp 5 through the cooling pipe 27 to cool down the lighting lamp 5. Then open the protective door 8 and move the pull block 31 to both sides away from the lamp shade 2, so that the pull block 31 drives the moving rod 30 and the adjusting plate 28 to move, stretching the compression spring. At the same time, the adjusting plate 28 drives the two limiting rods 29 away from the mounting bracket 4, no longer limiting the mounting bracket 4. Then move the mounting bracket 4 downward, so that the mounting bracket 4 drives the limiting block 32 to separate from the mounting plate 3, and then move the mounting bracket 4 with the cooled lighting lamp 5 out of the lamp shade 2 for replacement. After the replacement is completed, move the pull block 31 to both sides away from the lamp shade 2 again, so that the pull block 31 drives the moving rod 30 and the adjusting plate 28 to move, stretching the compression spring. At the same time, the adjusting plate 28 drives the two limiting rods 29 away from the mounting bracket 4 to put the replaced mounting bracket 4 and the lighting lamp 5 into the inside of the lamp shade 2, so that the limiting block 32 is inserted into the mounting plate 3, and the mounting bracket 4 and the lighting lamp 5 are installed inside the lamp shade 2. At the same time, release the pull block 31, and under the action of the compression spring, the adjusting plate 28 and the limiting rod 29 move to their original positions to limit the mounting bracket 4, improving the stability of the installation of the mounting bracket 4 and the lighting lamp 5.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.

Claims

1. A lighting device for a high-speed printing machine, comprising a machine body (1), characterized in that: The machine body (1) is provided with a printing cavity, and a lighting structure is provided on the top of the printing cavity; The lighting structure comprises a lampshade (2), a mounting plate (3), a mounting frame (4), a lighting lamp (5), a movable plate (6), an adjustment structure, a movable structure and a fill light (7); the lampshade (2) is arranged at the bottom of the printing cavity; the mounting plate (3) is fixedly mounted inside the lampshade (2); the mounting frame (4) is arranged at the bottom of the mounting plate (3); the lighting lamp (5) is fixedly mounted at the bottom of the mounting frame (4); the adjustment structure is arranged at the top of the mounting frame (4) and the top of the lampshade (2); an adjustment opening is opened at the top of the lampshade (2); a movable plate (6) is arranged at the top of the adjustment opening; a movable structure is arranged on one side of the movable plate (6); fill lights (7) are arranged on both sides of the lampshade (2); and the fill lights (7) are fixedly mounted on the inner wall of the top of the printing cavity.

2. The lighting device for a high-speed printing press according to claim 1, characterized in that: A movable groove is provided at the top of the printing cavity and inside the machine body (1); the adjustment structure is located inside the movable groove; the lampshade (2) and the movable plate (6) are both made of transparent material; a protective door (8) is provided on one side of the lampshade (2); there are two movable plates (6); a connecting block is fixedly installed on one side of the two movable plates (6) away from the movable structure; one side of the connecting block is slidably connected to the inner wall of the lampshade (2).

3. The lighting device for a high-speed printing press according to claim 1, characterized in that: The adjustment structure comprises a first motor (9), a rotating rod (10), a first fixed plate (11), a fixed rod (12), an electric push rod (13), a second fixed plate (14), a baffle (15), a second motor (16) and a movable rod (17); A first motor (9) is fixedly mounted on the inner wall of one side of the movable groove, and a rotating rod (10) is transmission-connected to the output end of the first motor (9), and one side of the rotating rod (10) is rotationally connected to the inner wall of the movable groove. A first fixed plate (11) is fixedly mounted on the rotating rod (10), and two electric push rods (13) are fixedly mounted on the bottom of the first fixed plate (11), and a second fixed plate (14) is fixedly mounted on the bottom of the two electric push rods (13). Fixed rods (12) are fixedly mounted at the four corners of the bottom of the first fixed plate (11), and the fixed rods (12) pass through the second fixed plate (14) and are fixedly mounted on the top of the lampshade (2). The bottoms of both ends of the second fixed plate (14) are rotationally connected to movable rods (17), and a second motor (16) is fixedly mounted on one side of the movable rod (17), and a baffle (15) is fixedly connected to the bottom of the movable rod (17).

4. The lighting device for a high-speed printing press according to claim 3, characterized in that: A first telescopic plate (18) is fixedly mounted on one side of the second motor (16); a second telescopic plate (19) is rotatably connected to one side of the movable rod (17); the bottom end of the first telescopic plate (18) is fixedly mounted on the rotating rod (10); the top of the second telescopic plate (19) is fixedly mounted on the bottom of the first fixed plate (11); the second motor (16) and the movable rod (17) are both located on one side of the fixed rod (12); and one side of the first telescopic plate (18) and the second telescopic plate (19) are both movably connected to the inner wall of the movable groove.

5. The lighting device for a high-speed printing press according to claim 1, characterized in that: The movable structure comprises a third motor (20), a threaded rod (21), a limiting plate, a movable plate (22) and a pushing plate (23); the third motor (20) is fixedly mounted on the inner wall of one side of the lampshade (2); the output end of the third motor (20) is drivingly connected to the threaded rod (21); one side of the threaded rod (21) is rotatably connected to the limiting plate; one end of the threaded rod (21) close to the third motor (20) is threadedly connected to the movable plate (22); the bottom of the movable plate (22) is slidably connected to the inner wall of the bottom of the lampshade (2); both sides of the movable plate (22) are hinged to the pushing plates (23); one end of the pushing plate (23) is hinged to one side of the movable plate (6).

6. The lighting device for a high-speed printing press according to claim 5, characterized in that: The bottom of the limiting plate is fixedly mounted on the bottom inner wall of the lampshade (2); the movable plate (6) is movably connected to the top inner wall of the lampshade (2); the third motor (20), the threaded rod (21), the limiting plate, the movable plate (22) and the pushing plate (23) are all located on a side of the movable plate (6) away from the connecting block; and the threaded rod (21), the limiting plate, the movable plate (22), the pushing plate (23) and the movable plate (6) are all located on the top of the mounting frame (4).

7. The lighting device for a high-speed printing press according to claim 1, characterized in that: The mounting plate (3), the mounting frame (4) and the lighting lamp (5) are located in the middle of the lampshade (2); the baffle (15) is located on both sides of the top of the mounting frame (4); a cold air box (24) is fixedly installed on the top of the second fixed plate (14); the cold air box (24) is located between the two electric push rods (13); cold air is arranged inside the cold air box (24); a delivery pipe (25) is fixedly installed at the bottom of the cold air box (24); one end of the delivery pipe (25) passes through the second fixed plate (14) and is fixedly installed with a storage block (26); one side of the storage block (26) is fixedly installed with the baffle (15); a cooling pipe (27) is fixedly installed on one side of the storage block (26); the cooling pipe (27) is located on one side of the storage block (26) and is distributed in a linear array; one end of the cooling pipe (27) is fixedly installed with a control valve; the storage block (26), the baffle (15) and the cooling pipe (27) are symmetrically arranged around the center of the second fixed plate (14).

8. The lighting device for a high-speed printing press according to claim 1, characterized in that: Both sides of the mounting frame (4) are provided with limiting structures, and the limiting structures include an adjustment plate (28), a limiting rod (29), a moving rod (30) and a pulling block (31); Adjustment plates (28) are provided on both sides of the mounting frame (4), and two limiting rods (29) are fixedly installed on one side of the adjustment plate (28). The limiting rod (29) located at the top passes through one side of the mounting frame (4) and extends to the top of the lighting lamp (5), and the limiting rod (29) located at the bottom is plugged into one side of the mounting frame (4). A moving rod (30) is fixedly installed on the side of the adjustment plate (28) away from the limiting rod (29), and a pull block (31) is fixedly installed on one end of the moving rod (30) passing through the lampshade (2).

9. The lighting device for a high-speed printing press according to claim 8, characterized in that: A limiting block (32) is fixedly mounted on the top of the mounting frame (4), and the limiting block (32) is plugged into the bottom of the mounting plate (3). A compression spring is sleeved on the outer side of the moving rod (30), and one end of the compression spring is fixedly mounted on the adjustment plate (28), and the other end is fixedly mounted on the inner wall of the lampshade (2). The top of the adjustment plate (28) is movably connected to the bottom of the second fixed plate (14), and the adjustment plate (28), the limiting rod (29), the moving rod (30) and the pulling block (31) are symmetrically arranged around the center of the mounting frame (4).

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