Shielding device of printing-down machine
By designing a double-layer structure shielding cloth and shielding plate, staggered side plates and counterweight plates in the platen machine, the light leakage caused by the creases and gaps of the shielding cloth is solved, and a more efficient light-shading effect is achieved.
Patent Information
- Application Number
- CN202420654634.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-01
AI Technical Summary
The shielding cloth of the existing platen machine will create creases during repeated folding and unfolding, resulting in gaps between the shielding cloth and the frame, causing light leakage.
A shielding device including a frame, a shielding cloth, a shielding plate, a guide rail, a moving piece and a driving mechanism is designed. Through the staggered distribution of the support of the shielding plate and the side plate, the shielding cloth can avoid the occurrence of creases and gaps, ensure the light-shading performance, and The shielding cloth is kept in a tensioned state by fitting the counterweight plate and the spring.
It effectively avoids light leakage in the shielding cloth, improves the light shading performance, ensures complete shading around the light source, and enhances the light source utilization efficiency of the dryer.
Smart Images
Figure CN222167408U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of plate exposure machines, in particular to a shielding device of a plate exposure machine. Background Art
[0002] Due to the large size of photovoltaic screens, a customized large-size screen printer is required for exposure. This type of screen printer does not use a shell to shield the light source, but installs a shielding cloth around the light source for shielding, and the shielding cloth is rolled along the track by rollers to retract and extend.
[0003] After the masking cloth is repeatedly folded and unfolded, creases will be generated in the masking cloth, resulting in a gap between the masking cloth and the frame, causing light leakage. In order for the roller to roll smoothly, there is a gap between the masking cloth and the track, which will cause light leakage.
[0004] How to solve this problem becomes crucial. Summary of the invention
[0005] In view of the shortcomings of the above-mentioned prior art, the purpose of the utility model is to provide a shielding device for a platemaking machine to solve the problem in the prior art that after the shielding cloth is repeatedly folded and unfolded, creases will be generated in the shielding cloth, thereby causing a gap between the shielding cloth and the frame, causing light leakage.
[0006] To achieve the above purpose, the technical solution of the utility model is as follows:
[0007] A shielding device for a plate exposure machine;
[0008] It includes a frame, which is arranged around the light source; a shielding cloth, which is movably arranged on the frame; shielding plates, which are arranged in parallel inside the shielding cloth; a guide rail, which is arranged on the frame along the moving direction of the shielding cloth; and a moving member, which is movably arranged on the guide rail;
[0009] The driving mechanism is arranged on the frame; wherein one end of the moving member is respectively connected to the shielding cloth and the shielding plate; and the other end of the moving member is connected to the driving mechanism.
[0010] A further technical solution is that it also includes: side panels, which are arranged in the shielding cloth; wherein adjacent side panels are relatively staggered.
[0011] A further technical solution is that the moving part includes: a moving frame; a roller rotatably arranged on the moving frame; a rotating frame rotatably connected to the moving frame; wherein the roller rolls along the guide rail; a connecting rod is arranged on the rotating frame, and the connecting rod passes through the shielding cloth and the shielding plate.
[0012] A further technical solution is that the guide rail includes: a track frame; side pieces, which are swingably arranged on both sides of the track frame; and springs, which are sleeved on the swinging positions of the side pieces; wherein the rollers roll along the track frame; and the springs push the side pieces against the shielding cloth.
[0013] A further technical solution is that a bending piece is arranged in the track frame; and the bending piece is arranged around the roller.
[0014] A further technical solution is that the driving mechanism includes: a driving wheel, rotatably arranged on the frame; a driving member, wound around the driving wheel; a power device, arranged on the frame; wherein the driving member connects the shielding cloth and the shielding plate; and the power device drives the driving wheel to rotate.
[0015] A further technical solution is that a connecting block is arranged on the driving member; a rotating member is rotatably arranged on the connecting block; a connecting shaft is arranged on the rotating member; and the connecting shaft passes through the shielding cloth and the shielding plate.
[0016] A further technical solution is that the frame comprises: a plane frame; and supporting legs connected to the plane frame; wherein the supporting legs shield between adjacent shielding cloths.
[0017] A further technical solution is that it also includes: a counterweight plate, which is arranged in parallel inside the shielding cloth; wherein the counterweight plate is located at the bottom of the shielding plate.
[0018] Compared with the prior art, the beneficial technical effects of the utility model are as follows: (1) the shielding cloth of the shielding device of the platemaking machine is a double-layer structure, and a shielding plate is installed inside the shielding cloth. The shielding plate and the shielding cloth work together to ensure the shading performance; the shielding plate is supported to avoid creases on the shielding cloth and prevent light leakage from the shielding cloth; the driving mechanism drives the moving part to keep the shielding cloth in a tensioned state, and the shielding plate can be distributed along a straight line, thereby avoiding the shrinkage of the shielding cloth and improving the shading performance of the shielding cloth and the shielding plate.
[0019] (2) The side panels are set at the gap position. When the shielding device of the plate exposure machine is closed, the side panels completely block the gap to prevent light leakage from the shielding cloth. Through the support of the side panels, the shielding cloth at the gap position is prevented from creases and light leakage.
[0020] (3) The counterweight plate pulls the shielding cloth downward due to its own weight, so that the shielding cloth not only bears the horizontal pulling force generated by the driving mechanism, but also bears the downward pulling force generated by the counterweight plate, so that the shielding cloth is in a tensioned state after being unfolded to prevent light leakage.
[0021] (4) The shielding plate supports the shielding cloth to prevent the side parts from squeezing and deforming the shielding cloth; when the shielding cloth is expanded or contracted, the side parts always rest against the shielding cloth; when the shielding cloth is expanded, the side parts rest against the shielding cloth, and the side parts shield the position between the shielding cloth and the track frame to avoid light leakage, thereby improving the light shielding performance of the shielding device of the platemaking machine. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 The schematic diagram of the structure of the shielding device of the plate exposure machine according to the embodiment of the utility model is shown.
[0023] Figure 2 Shows Figure 1 Enlarged structural diagram of point A in the middle.
[0024] Figure 3 Shows Figure 1 Structural diagram at point B in the figure.
[0025] Figure 4 A side structural diagram of the guide rail according to an embodiment of the utility model is shown.
[0026] Markings in the accompanying drawings: 1. frame; 11. plane frame; 12. support leg; 13. bottom frame; 2. shielding cloth; 3. shielding plate; 4. guide rail; 41. track frame; 411. bending part; 42. side part; 43. spring; 5. moving part; 51. moving frame; 52. roller; 53. rotating frame; 531. connecting rod; 54. connecting block; 6. driving mechanism; 61. driving wheel; 62. driving part; 63. power unit; 7. side plate; 8. counterweight plate. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical scheme and advantages of the utility model clearer, the device proposed in the utility model is further described in detail below in combination with the accompanying drawings and specific implementation methods. According to the following description, the advantages and features of the utility model will be clearer. It should be noted that the accompanying drawings adopt a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation method of the utility model. In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated by the accompanying drawings of this specification are only used to match the content disclosed in the specification, so that people familiar with this technology can understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so it has no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect that the utility model can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the utility model.
[0028] Figure 1 The schematic diagram of the structure of the shielding device of the plate exposure machine according to the embodiment of the utility model is shown. Figure 2 Shows Figure 1 Enlarged structural diagram of point A in the middle. Figure 3 Shows Figure 1 Structural diagram at B in the figure. Figure 4 The side view of the guide rail of the utility model embodiment is shown. Figure 1-Figure 4 As shown, the utility model discloses a shielding device for a plate exposure machine.
[0029] The shielding device of the plate exposure machine includes a frame 1 arranged around the light source, a shielding cloth 2 movably arranged on the frame 1, a shielding plate 3 arranged in parallel inside the shielding cloth 2, a guide rail 4 arranged on the frame 1 along the moving direction of the shielding cloth 2, a moving member 5 movably arranged on the guide rail 4, and a driving mechanism 6 arranged on the frame 1. Among them, one end of the moving member 5 is connected to the shielding cloth 2 and the shielding plate 3 respectively. The other end of the moving member 5 is connected to the driving mechanism 6.
[0030] Exemplarily, the shielding cloth 2 is four groups. The shielding cloth 2 is movably arranged at the edge position of the upper end of the frame 1. Exemplarily, the shielding cloth 2 is a double-layer structure. The shielding plate 3 is arranged in the double-layer structure. The guide rail 4 is arranged at the edge position of the upper end of the frame 1. The lower end of the moving member 5 is respectively connected to the shielding cloth 2 and the shielding plate 3. The upper end of the moving member 5 is connected to the driving mechanism 6.
[0031] When the shielding device of the plate-making machine is opened, the driving mechanism 6 drives the moving member 5 to move along the guide rail 4, and the moving member 5 drives the shielding cloth 2 to shrink and the shielding plate 3 to be folded and distributed.
[0032] When the shielding device of the plate exposure machine is closed, the driving mechanism 6 drives the moving member 5 to return along the guide rail 4, and the moving member 5 drives the shielding cloth 2 to unfold, and the shielding plates 3 are distributed along a straight line.
[0033] The shielding cloth 2 of the shielding device of the plate exposure machine is a double-layer structure, and a shielding plate 3 is installed inside the shielding cloth 2. The shielding plate 3 and the shielding cloth 2 work together to ensure the light-shielding performance. At the same time, the support of the shielding plate 3 prevents the shielding cloth 2 from creases and light leakage.
[0034] The driving mechanism 6 drives the moving part 5 to keep the shielding cloth 2 in a tensioned state, and the shielding plates 3 can be distributed along a straight line, thereby avoiding the shrinkage of the shielding cloth 2 and improving the shading performance of the shielding cloth 2 and the shielding plates 3.
[0035] The shielding device of the plate exposure machine further includes: side panels 7 arranged in the shielding cloth 2. The adjacent side panels 7 are relatively staggered.
[0036] In order to allow the shielding plates 3 to be folded and distributed, there are gaps between adjacent shielding plates 3, and the light shielding performance at the gap positions is relatively poor.
[0037] The side plate 7 is arranged at the gap position, and when the shielding device of the plate exposure machine is closed, the side plate 7 completely blocks the gap, thereby preventing light leakage from the shielding cloth 2. Through the support of the side plate 7, the shielding cloth 2 at the gap position is prevented from generating creases to cause light leakage.
[0038] The frame 1 comprises: a plane frame 11, a support leg 12 connected to the plane frame 11, and a bottom frame 13 connected to the support leg 12. The support leg 12 shields between adjacent shielding cloths 2. The bottom frame 13 shields the bottom of the shielding cloth 2.
[0039] The plane frame 11 is horizontally arranged. There are four sets of legs 12. The upper ends of the legs 12 are connected to the corners of the plane frame 11. The bottom frame 13 is horizontally arranged. The lower ends of the legs 12 are connected to the corners of the bottom frame 13. The cross section of the legs 12 is L-shaped. The bottom frame 13 shields the bottom of the shielding cloth 2 and the ground.
[0040] When the shielding device of the plate exposure machine is closed, after the shielding cloth 2 is unfolded, there is a gap between adjacent shielding cloths 2, and the support legs 12 shield the gap to prevent light leakage between adjacent shielding cloths 2. There is a gap between the shielding cloth 2 and the ground, and the bottom frame 13 shields the gap to prevent light leakage between the shielding cloth 2 and the ground.
[0041] The shielding device of the plate exposure machine also includes: a counterweight plate 8 arranged in parallel in the shielding cloth 2. The counterweight plate 8 is located at the bottom of the shielding plate 3.
[0042] If the shielding plate 3 is heavy, the driving load of the driving mechanism 6 will be increased. In order to ensure that the driving mechanism 6 stably drives the shielding cloth 2 to be smoothly retracted and extended, the shielding plate 3 is light. However, this will cause the shielding cloth 2 to be unable to be in a tensioned state after being unfolded.
[0043] The counterweight plate 8 is heavy, and the counterweight plate 8 pulls the shielding cloth 2 downward due to its own weight, so that the shielding cloth 2 not only bears the horizontal pulling force generated by the driving mechanism 6, but also bears the downward pulling force generated by the counterweight plate 8, so that the shielding cloth 2 is in a tensioned state after being unfolded to avoid light leakage.
[0044] The moving member 5 includes a moving frame 51, a roller 52 rotatably arranged on the moving frame 51, and a rotating frame 53 rotatably connected to the moving frame 51. The roller 52 rolls along the guide rail 4. A connecting rod 531 is arranged on the rotating frame 53, and the connecting rod 531 passes through the shielding cloth 2 and the shielding plate 3.
[0045] The rollers 52 are rotatably arranged in parallel at the upper end of the moving frame 51. The rotating frame 53 is rotatably connected to the lower end of the moving frame 51. The upper end of the moving frame 51 is placed in the guide rail 4, and the rollers 52 roll along the guide rail 4. The rotating frame 53 is connected to the shielding cloth 2 and the shielding plate 3 by the connecting rod 531 passing through the shielding cloth 2 and the shielding plate 3.
[0046] The shielding plate 3 has a folded distribution state and a straight distribution state. The movable member 5 can adapt to different states by rotating the rotating frame 53 to connect the movable frame 51 .
[0047] The guide rail 4 includes a track frame 41, side pieces 42 swingably arranged on both sides of the track frame 41, and springs 43 sleeved on the swinging positions of the side pieces 42. The roller 52 rolls along the track frame 41. The springs 43 push the side pieces 42 against the shielding cloth 2.
[0048] The upper end of the moving frame 51 is placed in the track frame 41, and the roller 52 rolls along the track frame 41. Swing shafts are arranged at both ends of the side member 42, and the swing shafts are placed in the track frame 41 and rotate to make the side member 42 swing. The spring 43 is sleeved on the swing shaft of the side member 42. The spring 43 pushes the side member 42 to swing inward.
[0049] The shielding plate 3 supports the shielding cloth 2 to prevent the side piece 42 from squeezing and deforming the shielding cloth 2. When the shielding cloth 2 is expanded or retracted, the side piece 42 always abuts against the shielding cloth 2. When the shielding cloth 2 is expanded, the side piece 42 abuts against the shielding cloth 2, and the side piece 42 shields the position between the shielding cloth 2 and the track frame 41 to prevent light leakage, thereby improving the light shielding performance of the shielding device of the plate exposure machine.
[0050] A bending member 411 is disposed in the track frame 41 , and the bending member 411 is disposed around the roller 52 .
[0051] The bending member 411 is relatively disposed in the track frame 41. The bending member 411 limits the range of motion of the roller 52, so that the roller 52 can roll smoothly.
[0052] The driving mechanism 6 comprises: a driving wheel 61 rotatably arranged on the frame 1, a driving member 62 arranged around the driving wheel 61, and a power device 63 arranged on the frame 1. The driving member 62 is connected to the moving member 5. The power device 63 drives the driving wheel 61 to rotate.
[0053] The driving wheels 61 are located at both ends of the track frame 41. For example, the driving member 62 is a steel wire rope. For example, the power device 63 is a motor.
[0054] The moving member 5 is provided with a connecting block 54 . The driving member 62 is connected to the connecting block 54 .
[0055] The lower end of the connecting block 54 is connected to the moving frame 51 near the position of the power device 63. The driving member 62 passes through and is connected to the upper end of the connecting block 54.
[0056] The power device 63 drives the driving wheel 61 to rotate, the driving wheel 61 drives the driving member 62 and the connecting block 54 to move, and the connecting block 54 drives the moving member 5, the shielding cloth 2 and the shielding plate 3 to move, thereby completing the retraction and extension of the shielding cloth 2.
[0057] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0058] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A shielding device for a plate exposure machine, characterized in that: include A frame (1) is arranged around the light source; A shielding cloth (2) movably arranged on the frame (1); Shielding plates (3) are arranged in parallel inside the shielding cloth (2); A guide rail (4) is arranged on the frame (1) along the moving direction of the shielding cloth (2); A moving member (5) movably arranged on the guide rail (4); A driving mechanism (6) is arranged on the frame (1); One end of the moving member (5) is respectively connected to the shielding cloth (2) and the shielding plate (3); the other end of the moving member (5) is connected to the driving mechanism (6).
2. The shielding device of the plate exposure machine according to claim 1, characterized in that: Also includes: A side plate (7) arranged inside the shielding cloth (2); Wherein, the adjacent side panels (7) are relatively staggered.
3. The shielding device of the plate exposure machine according to claim 1, characterized in that: The moving part (5) comprises: Mobile rack (51); A roller (52) rotatably disposed on the movable frame (51); A rotating frame (53) rotatably connected to the movable frame (51); The roller (52) rolls along the guide rail (4); a connecting rod (531) is provided on the rotating frame (53), and the connecting rod (531) passes through the shielding cloth (2) and the shielding plate (3).
4. The shielding device of the plate exposure machine according to claim 3, characterized in that: The guide rail (4) comprises: a track frame (41); Side pieces (42) are swingably arranged on both sides of the track frame (41); A spring (43) is sleeved on the swinging position of the side member (42); The roller (52) rolls along the track frame (41); and the spring (43) pushes the side piece (42) to abut against the shielding cloth (2).
5. The shielding device of the plate exposure machine according to claim 4, characterized in that: A bending piece (411) is arranged in the track frame (41); the bending piece (411) is arranged around the roller (52).
6. The shielding device of the plate exposure machine according to claim 1, characterized in that: The driving mechanism (6) comprises: A driving wheel (61) rotatably mounted on the frame (1); A driving member (62) is wound around the driving wheel (61); A power device (63) is arranged on the frame (1); Wherein, the driving member (62) is connected to the moving member (5); and the power device (63) drives the driving wheel (61) to rotate.
7. The shielding device of the plate exposure machine according to claim 6, characterized in that: A connecting block (54) is provided on the moving member (5); the connecting block (54) is connected to the driving member (62).
8. The shielding device of the plate exposure machine according to claim 1, characterized in that: The frame (1) comprises: a plane frame (11); A support leg (12) connected to the plane frame (11); A bottom frame (13) connected to the supporting legs (12); The supporting legs (12) shield the space between adjacent shielding cloths (2); and the bottom frame (13) shields the bottom of the shielding cloth (2).
9. The shielding device of the plate exposure machine according to claim 1, characterized in that: Also includes: A counterweight plate (8) is arranged in parallel inside the shielding cloth (2); Wherein, the counterweight plate (8) is located at the bottom of the shielding plate (3).