A printing frame with a shielding device

Abstract

The utility model relates to a sun -exposed machine shielding device technical field, and disclose a sun -exposed machine with shielding device, and the both ends of the top of two sliding frames are all swing through the limited position post, the top of limited position post rotatably connects with the connecting sleeve, and the outside of limited position post swing sleeve has the extension spring, and the bottom of connecting sleeve is located the one side fixed connection of sliding frame with the limited position board, the utility model discloses through the upward pull connecting sleeve movement, make connecting sleeve drive limited position post move on the sliding frame, the extension spring force generates the stretching, and the one end of limited position post is separated from the inside of limited position hole simultaneously, then rotates connecting sleeve, make connecting sleeve drive limited position board and move to the top of fixed frame, can be positioned to the position of limited position post, in turn with other limited position post separated from the inside of limited position hole, can pull fixed frame and move, and fixed frame moves out the inside of two sliding frames, can complete the disassembly of fixed frame to the replacement of sun -exposed rubber cloth, guarantee sun -exposed machine's shading and vacuum adsorption effect.

Description

Technical Field

[0001] This utility model relates to the technical field of plate exposure machine shielding devices, specifically a plate exposure machine with a shielding device. Background Technology

[0002] A plate-making machine is a contact exposure imaging device used to create printing plates (PS plates, screen printing plates, etc.). It uses pressure to force the original plate and the photosensitive plate into close contact, and utilizes a photochemical reaction to precisely transfer the image onto the photosensitive plate. It consists of a light source, exposure chamber, vacuum chamber, electrical components, and a base, and is widely used in printing, screen printing, and other fields. Early light sources used high-pressure mercury lamps, but now metal halide lamps—iodine-gallium lamps—are more commonly used, achieving an illumination uniformity of no less than 86%. The vacuum system must reach a vacuum level of 80 kPa within 60 seconds, and a PLC control system is used to improve the vacuum quality and exposure time accuracy.

[0003] Exposure machines typically use a large rubber sheet covering the entire screen to form a sealed cavity. The rubber sheet is usually mounted on a frame, which is fixed by hinged installation. When the light-shielding rubber sheet needs to be replaced due to aging or damage, the traditional structure usually requires disassembling a large number of fasteners from the frame and disassembling the rubber sheet. The process is cumbersome and time-consuming. Therefore, an exposure machine with a shielding device is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a plate exposure machine with a shielding device to solve the problem mentioned in the background art that plate exposure machines generally use a large rubber cloth covering the entire screen to form a closed cavity. The rubber cloth is usually installed on a frame, and the frame is fixed by a hinged installation method. When the light-shielding rubber cloth needs to be replaced due to aging or damage, the traditional structure usually requires the removal of a large number of fasteners from the frame and the disassembly of the rubber cloth. The process is cumbersome and complicated and takes a long time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plate-exposing machine with a shielding device, comprising... The box has an opening at the top, and shielding components are provided on both sides of the box. An exposure assembly is provided inside the box. The shielding assembly includes two fixed frames, two guide rods, and a mounting plate. The two fixed frames are fixedly connected to both sides of the housing, and the two guide rods are fixedly connected to the inside of the fixed frames. The two ends of the mounting plate are movably sleeved on the outside of the two guide rods. Slides are fixedly connected to both ends of the bottom of the mounting plate. Fixed frames are provided on the inner sides of the two slides. Sealing rings are fixedly connected to the bottom of the fixed frames. Light-blocking rubber sheets are fixedly connected to the inner sides of the fixed frames. Limiting posts movably pass through both ends of the top of the two slides. Connecting sleeves are rotatably connected to the top of the limiting posts. Tension springs are movably sleeved on the outside of the limiting posts. A limiting plate is fixedly connected to the bottom of the connecting sleeve on one side of the slide.

[0006] Preferably, one end of the tension spring is fixedly connected to the inner bottom of the connecting sleeve, and the other end of the tension spring is fixedly connected to the outer side of the limiting post.

[0007] Preferably, the top two ends of the fixed frame are provided with limiting holes, and one end of the limiting post is inserted into the limiting hole.

[0008] Preferably, both ends of the fixed frame are provided with sliding grooves, and the inner bottom of the slide is fixedly connected to a slide rail, which is slidably connected to the inside of the sliding groove.

[0009] Preferably, the exposure assembly includes a glass plate, an exposure lamp, and a cover. The glass plate is fixedly connected to the top of the housing, the exposure lamp is installed on the bottom inner side of the housing, and the cover is installed between the exposure lamp and the glass plate.

[0010] Preferably, a heat dissipation hole is provided on the rear side of the housing, and a cooling fan is installed inside the housing on one side of the heat dissipation hole.

[0011] Preferably, a support plate is fixedly connected to the top of the two fixing frames, and an electric push rod is installed on the top of the support plate.

[0012] Preferably, the push rod end of the electric push rod extends through the top of the support plate, and the push rod end of the electric push rod is fixedly connected to the top of the mounting plate.

[0013] Preferably, a vacuum pump is installed on the top of the support plate, and a connecting pipe is installed at one end of the vacuum pump, which is installed on the top of the light-shielding rubber sheet.

[0014] Preferably, an exhaust valve is installed on the top of the light-shielding rubber sheet, and a positioning block is provided on the rear top side of the box.

[0015] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects: This invention allows the connecting sleeve to be pulled upwards, causing it to move the limiting post on the slide. At this time, the tension spring is stretched, and one end of the limiting post disengages from the limiting hole. Then, the connecting sleeve is rotated, causing it to move the limiting plate to the top of the fixed frame, thus limiting the position of the limiting post. By sequentially disengaging the other limiting posts from the limiting holes, the fixed frame can be pulled to move. Once the fixed frame moves out of the two slides, it can be disassembled to facilitate the replacement of the light-shielding rubber sheet, ensuring the light-shielding and vacuum adsorption effects of the exposure machine. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 For the present utility model Figure 2 Enlarged structural diagram of area A in the middle; Figure 4 This is a schematic diagram of the right-side structure of this utility model; Figure 5 This is a schematic diagram of the rear structure of this utility model; Figure 6 This is a top view of the structure of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Housing; 2. Fixing frame; 3. Guide rod; 4. Mounting plate; 5. Slide; 6. Fixing frame; 7. Sealing ring; 8. Light-shielding rubber sheet; 9. Limiting post; 10. Connecting sleeve; 11. Tension spring; 12. Limiting plate; 13. Limiting hole; 14. Slide rail; 15. Slide groove; 16. Glass plate; 17. Exposure lamp; 18. Cover; 19. Support plate; 20. Electric push rod; 21. Vacuum pump; 22. Connecting pipe; 23. Heat dissipation hole; 24. Cooling fan; 25. Exhaust valve. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0021] Example Please see Figure 1-6 This utility model provides a technical solution: a plate exposure machine with a shielding device, including a box 1 with a top opening, shielding components on both sides of the box 1, and a plate exposure component inside the box 1.

[0022] By setting up a shielding component, the replacement of the light-shielding rubber sheet 8 can be facilitated, ensuring the light-shielding and vacuum adsorption effects of the exposure machine. The shielding component includes two fixed frames 2, two guide rods 3, and a mounting plate 4. The two fixed frames 2 are respectively fixedly connected to both sides of the housing 1. The two guide rods 3 are fixedly connected to the inside of the fixed frames 2. The two ends of the mounting plate 4 are movably sleeved on the outside of the two guide rods 3. The bottom ends of the mounting plate 4 are fixedly connected to the slides 5. The inner side of the two slides 5 is provided with a fixed frame 6. The bottom of the fixed frame 6 is fixedly connected with a sealing ring 7. The light-shielding rubber sheet 8 is fixedly connected to the inner side of the fixed frame 6. The top ends of the two slides 5 are movably connected to limit posts 9. The top of the limit posts 9 is rotatably connected to a connecting sleeve 10. The outer side of the limit posts 9 is movably sleeved with a tension spring 11. 1 is a consumable part that requires regular maintenance and replacement. The bottom of the connecting sleeve 10 is fixedly connected to the limiting plate 12 on one side of the slide 5. Limiting holes 13 are opened at both ends of the top of the fixed frame 6. One end of the limiting post 9 is inserted into the limiting hole 13. By pulling the connecting sleeve 10 upward, the connecting sleeve 10 drives the limiting post 9 to move on the slide 5. At this time, the tension spring 11 is stretched by force, and one end of the limiting post 9 is disengaged from the limiting hole 13. Then, the connecting sleeve 10 is rotated, so that the connecting sleeve 10 drives the limiting plate 12 to move to the top of the fixed frame 6, which can limit the position of the limiting post 9. By sequentially disengaging the other limiting posts 9 from the limiting holes 13, the fixed frame 6 can be pulled to move. The fixed frame 6 moves out of the interior of the two slides 5, and the disassembly of the fixed frame 6 can be completed.

[0023] To facilitate the installation of the fixed frame 6, one end of the tension spring 11 is fixedly connected to the inner bottom of the connecting sleeve 10, and the other end of the tension spring 11 is fixedly connected to the outer side of the limiting post 9. Both ends of the fixed frame 6 are provided with sliding grooves 15. The inner bottom of the slide 5 is fixedly connected to the slide rail 14, which is slidably connected to the inside of the sliding groove 15. A positioning block is provided on the rear top side of the housing 1. When installing the fixed frame 6, the fixed frame 6 is inserted between the two slides 5. The slide rail 14 is located inside the sliding groove 15, which can ensure the stability of the fixed frame 6. The fixed frame 6 abuts against one side of the positioning block, thereby limiting the fixed frame 6. Then, the connecting sleeve 10 is rotated so that the limiting plate 12 on the connecting sleeve 10 is disengaged from the top of the slide 5. The tension spring 11 drives the limiting post 9 to reset, so that the limiting post 9 is inserted into the inside of the limiting hole 13, thus completing the installation of the fixed frame 6.

[0024] By setting up an exposure assembly, the printing plate processing can be completed quickly. The exposure assembly includes a glass plate 16, an exposure lamp 17, and a cover 18. The glass plate 16 is fixedly connected to the top of the housing 1. The exposure lamp 17 is installed at the bottom inner side of the housing 1. The cover 18 is installed between the exposure lamp 17 and the glass plate 16. A heat dissipation hole 23 is provided on the rear side of the housing 1. A cooling fan 24 is installed inside the housing 1 on one side of the heat dissipation hole 23. A support plate 19 is fixedly connected to the top of the two fixing brackets 2. An electric push rod 20 is installed on the top of the support plate 19. The push rod end of the electric push rod 20 passes through the top of the support plate 19 and is fixed. Connected to the top of the mounting plate 4; by placing the film on top of the glass plate 16, and then placing the screen printing plate coated with photosensitive emulsion on the film, the push rod of the electric push rod 20 extends, and the push rod of the electric push rod 20 drives the mounting plate 4 to move downward, so that the mounting plate 4 drives the fixing frame 6 to move downward through the two slides 5, the sealing ring 7 abuts against the top of the glass plate 16, and at the same time the light-shielding rubber cloth 8 moves above the screen printing plate, then vacuuming is performed, and then the exposure lamp 17 and the cooling fan 24 are controlled to start. The exposure process can be completed through the exposure lamp 17 and the cover 18, and the cooling fan 24 can dissipate heat from the exposure lamp 17.

[0025] A vacuum pump 21 is installed on the top of the support plate 19. A connecting pipe 22 is installed at one end of the vacuum pump 21. The connecting pipe 22 is installed on the top of the light-shielding rubber sheet 8. By controlling the start of the vacuum pump 21, the vacuum pump 21 evacuates the inside of the light-shielding rubber sheet 8 through the connecting pipe 22, so that the screen printing plate is tightly attached to the film, reducing or eliminating gaps, thereby avoiding shadows caused by light projection and ensuring clear image reproduction. An exhaust valve 25 is installed on the top of the light-shielding rubber sheet 8. After the plate exposure is completed, the exhaust valve 25 is opened to allow air to enter between the light-shielding rubber sheet 8 and the glass plate 16, thereby releasing the vacuum state. Then, the electric push rod 20 can drive the mounting plate 4 to move upward, so that the sealing ring 7 on the fixing frame 6 is disengaged from the top of the glass plate 16, and the screen printing plate and the film can be removed.

[0026] The working principle or structural principle is as follows: When using the exposure machine, the film is placed on top of the glass plate 16, and then the screen printing stencil coated with photosensitive emulsion is placed on the film. The electric push rod 20 is extended by the switch group, causing the mounting plate 4 to move downwards. This causes the mounting plate 4 to move downwards via the two slides 5, moving the fixing frame 6 downwards. The sealing ring 7 abuts against the top of the glass plate 16. Simultaneously, the light-shielding rubber blanket 8 moves above the screen printing stencil. At this point, the vacuum pump 21 is started by the switch group. The vacuum pump 21 evacuates the interior of the light-shielding rubber blanket 8 through the connecting pipe 22, causing the screen printing stencil to... The plate is placed tightly against the film to reduce or eliminate gaps, thereby avoiding shadows caused by light projection and ensuring clear image reproduction. Then, the exposure lamp 17 and cooling fan 24 are started by controlling the switch group. The exposure process can be completed by the exposure lamp 17 and the cover 18. At the same time, the cooling fan 24 can dissipate heat from the exposure lamp 17. After the exposure is completed, the exhaust valve 25 is opened to allow air to enter between the light-shielding rubber cloth 8 and the glass plate 16, thus releasing the vacuum state. The electric push rod 20 can then drive the mounting plate 4 upward, causing the sealing ring 7 on the fixing frame 6 to disengage from the top of the glass plate 16, and the screen printing plate and film can be removed.

[0027] When the fixed frame 6 and the light-shielding rubber sheet 8 need to be replaced, the connecting sleeve 10 is pulled upwards to move it, causing the connecting sleeve 10 to move the limiting post 9 on the slide 5. At this time, the tension spring 11 is stretched, and one end of the limiting post 9 disengages from the interior of the limiting hole 13. Then, the connecting sleeve 10 is rotated to move the limiting plate 12 to the top of the fixed frame 6, which can limit the position of the limiting post 9. The other limiting posts 9 are disengaged from the interior of the limiting hole 13 in sequence, and the fixed frame 6 can be pulled to move. The fixed frame 6 moves out of the interior of the two slides 5, and the fixed frame 6 can be disassembled. Thus, the fixed frame 6 and the light-shielding rubber sheet 8 can be replaced as a whole, ensuring the light-shielding and vacuum adsorption effect of the exposure machine, while improving the replacement efficiency of the light-shielding rubber sheet 8.

[0028] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A plate-exposing machine with a shielding device, characterized in that, include A box (1) with an opening at the top, with shielding components on both sides of the box (1), and an exposure assembly inside the box (1); The shielding assembly includes two fixed frames (2), two guide rods (3), and a mounting plate (4). The two fixed frames (2) are fixedly connected to both sides of the housing (1). The two guide rods (3) are fixedly connected to the inside of the fixed frames (2). The two ends of the mounting plate (4) are movably sleeved on the outside of the two guide rods (3). The bottom ends of the mounting plate (4) are fixedly connected to the slides (5). The inner side of the two slides (5) is provided with a fixed frame (6). The bottom of the fixed frame (6) is fixedly connected with a sealing ring (7). The inner side of the fixed frame (6) is fixedly connected with a light-shielding rubber cloth (8). The top ends of the two slides (5) are movably connected to a limiting post (9). The top of the limiting post (9) is rotatably connected to a connecting sleeve (10). The outer side of the limiting post (9) is movably sleeved with a tension spring (11). The bottom of the connecting sleeve (10) is located on one side of the slide (5) and is fixedly connected to a limiting plate (12).

2. The plate-exposing machine with a shielding device according to claim 1, characterized in that, One end of the tension spring (11) is fixedly connected to the inner bottom of the connecting sleeve (10), and the other end of the tension spring (11) is fixedly connected to the outer side of the limiting post (9).

3. The plate-exposing machine with a shielding device according to claim 1, characterized in that, Limiting holes (13) are provided at both ends of the top of the fixed frame (6), and one end of the limiting post (9) is inserted into the limiting hole (13).

4. A plate-exposing machine with a shielding device according to claim 1, characterized in that, Both ends of the fixed frame (6) are provided with sliding grooves (15), and the inner bottom of the slide frame (5) is fixedly connected with a slide rail (14), which is slidably connected to the inside of the sliding groove (15).

5. A plate-exposing machine with a shielding device according to claim 1, characterized in that, The exposure assembly includes a glass plate (16), an exposure lamp (17), and a cover (18). The glass plate (16) is fixedly connected to the top of the housing (1), the exposure lamp (17) is installed on the inner bottom of the housing (1), and the cover (18) is installed between the exposure lamp (17) and the glass plate (16).

6. A plate-exposing machine with a shielding device according to claim 1, characterized in that, The rear side of the housing (1) is provided with a heat dissipation hole (23), and a cooling fan (24) is installed inside the housing (1) on one side of the heat dissipation hole (23).

7. A plate-exposing machine with a shielding device according to claim 1, characterized in that, The top of the two fixed brackets (2) is fixedly connected to a support plate (19), and an electric push rod (20) is installed on the top of the support plate (19).

8. A plate-making machine with a shielding device according to claim 7, characterized in that, The push rod end of the electric push rod (20) passes through the top of the support plate (19), and the push rod end of the electric push rod (20) is fixedly connected to the top of the mounting plate (4).

9. A plate-exposing machine with a shielding device according to claim 8, characterized in that, A vacuum pump (21) is installed on the top of the support plate (19), and a connecting pipe (22) is installed at one end of the vacuum pump (21). The connecting pipe (22) is installed on the top of the light-shielding rubber sheet (8).

10. A plate-exposing machine with a shielding device according to claim 1, characterized in that, An exhaust valve (25) is installed on the top of the light-shielding rubber sheet (8), and a positioning block is provided on the rear side of the top of the box (1).

Images