A diffusion film printing exposure machine

Abstract

The present invention relates to the technical field of printing exposure machines, and discloses a diffusion film printing exposure machine, including a box body, the inner wall of the box body is fixedly connected to an exposure lamp, the inner wall of the box body is rotatably connected to a rotating plate, and the upper and lower surfaces of the rotating plate are provided with a clearance groove, the inner wall of the clearance groove is fixedly connected to an elastic light shielding film, and the inner wall of the clearance groove is rotatably connected to a frame, and the inner wall of the frame is fixedly connected to a transparent plate. In the present invention, by providing a clearance groove on the upper and lower surfaces of the rotating plate of the rotating plate, when in use, the product to be exposed can be placed in the upper clearance groove, and then through a driving mechanism, the product to be exposed is turned over to the bottom for exposure, and the original lower clearance groove is turned over to the top, so that when exposing, the clearance groove turned over to the top can be unloaded and loaded, so that the loading and unloading of the device will not delay the exposure of the device, so as to improve the efficiency of the device.

Description

Technical Field

[0001] The invention relates to the technical field of printing exposure machines, and in particular to a diffusion film printing exposure machine. Background Art

[0002] The diffusion film printing exposure machine is a device used in the printing industry. It is mainly used in the printing process of making circuit boards, printed electronic components and other microstructures. It uses special exposure technology to project light onto the diffusion film coated with photosensitive agent to form the required pattern or image. After exposure, the photosensitive agent on the diffusion film will react chemically to form a solidified pattern, which can then be used for printing or manufacturing other microstructures.

[0003] A diffusion film printing exposure machine usually consists of a light source, an exposure device and a control system. The light source can be an ultraviolet lamp or a laser, which is used to generate a high-energy light beam. The exposure device is used to focus the light beam and project it onto the diffusion film to achieve pattern exposure. The control system is used to set parameters such as exposure time and light intensity to ensure the accuracy and consistency of the exposure effect. When the exposure machine is in use, the exposure time generally takes tens of seconds, which makes the exposure machine inefficient.

[0004] To this end, we propose a diffusion film printing exposure machine to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art, and to propose a diffusion film printing exposure machine that can load and unload materials during exposure, so that the loading and unloading of the device will not delay the exposure of the device, thereby improving the efficiency of the device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A diffusion film printing exposure machine comprises a box body, an exposure lamp is fixedly connected to the inner wall of the box body, a rotating plate is rotatably connected to the inner wall of the box body, and a clearance groove is opened on the upper and lower surfaces of the rotating plate, an elastic light-shielding film is fixedly connected to the inner wall of the clearance groove, and a frame is rotatably connected to the inner wall of the clearance groove, a transparent plate is fixedly connected to the inner wall of the frame, a rotating shaft is fixedly connected to one side wall of the rotating plate, and one end of the rotating shaft passes through the box body and extends to the outside of the box body, the outer wall of the box body is fixedly connected to a driving mechanism, and a vacuum mechanism is fixedly connected to the side wall of the box body away from the driving mechanism.

[0008] Preferably, the driving mechanism includes a motor fixedly connected to the outer wall of the box body, and the driving end of the motor is fixedly sleeved with a missing gear, one end of the rotating shaft located outside the box body is fixedly connected to a full gear, a cavity is opened inside the box body, and a plug rod is slidably connected to the inner wall of the cavity, one side wall of the rotating plate is fixedly connected to two holes, both ends of the plug rod pass through the box body, and one end of the plug rod extends to the inside of the hole, and the other end of the plug rod is fixedly connected to an iron block, a semi-annular groove is opened on one side side wall of the missing gear, and a magnet plate is fixedly connected to the inner wall of the semi-annular groove, the outer wall of the plug rod is sleeved with a spring, and one end of the spring is fixedly connected to the plug rod.

[0009] Preferably, the vacuum mechanism includes an vacuum pump fixedly connected to the box body, an annular groove is provided at one end of the rotating plate away from the rotating shaft, and the inner wall of the annular groove is rotatably connected to a fixed shaft, one end of the fixed shaft passes through the box body and extends to the outside of the box body, and an air intake hole and an exhaust hole are provided inside the fixed shaft, a hole connecting the annular groove and the yield groove is provided inside the rotating plate, a soft sleeve is provided on the outer wall of the fixed shaft, and the outer wall of the soft sleeve is interference fit with the inner wall of the annular groove, a connecting hole is provided on the outer wall of the soft sleeve, and one end of the vacuum pump is connected to the exhaust hole.

[0010] Preferably, a T-shaped groove is provided on one side wall of the frame, and a counterweight slider is slidably connected to the inner wall of the T-shaped groove, a fixed rod is fixedly connected to one side wall of the counterweight slider, and a wiping block is detachably connected to one side wall of the fixed rod, and a wiping block is in contact with the transparent plate.

[0011] Preferably, a gusset plate is fixedly connected to one side wall of the frame.

[0012] Preferably, the outer wall fixing sleeve of the frame is provided with a rubber sleeve, and the outer wall of the rubber sleeve is interference fit with the inner wall of the clearance groove.

[0013] Preferably, a protrusion is fixedly connected to one side wall of the insertion rod.

[0014] Preferably, the upper surface of the box body is hingedly connected with a cover cap.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention provides clearance grooves on both the upper and lower surfaces of the rotating plate. When in use, the product to be exposed can be placed in the upper clearance groove, and then the product to be exposed can be flipped to the bottom for exposure through a driving mechanism, and the original lower clearance groove is flipped to the top. In this way, when exposing, the clearance groove flipped to the top can be unloaded and loaded, so that the loading and unloading of the device will not delay the exposure of the device, thereby improving the efficiency of the device.

[0017] 2. The present invention, by setting up the missing gear, the insertion rod and the insertion hole, etc. for use together, the motor and the missing gear can not only drive the rotating shaft and the rotating plate to flip the rotating plate, but also ensure the stability of the flipping angle and position of the rotating plate, and at the same time can limit the rotating plate, maintain the position of the rotating plate, and prevent the rotating plate from rotating at will.

[0018] 3. The present invention sets an air pump for use in conjunction with a fixed shaft, etc. When the lower give way groove is flipped to the upper side, the upper give way groove is connected to the air suction hole through the hole and the annular groove, and the outside air can enter the upper give way groove through the air suction hole, so that the upper give way groove can inhale air to relieve the negative pressure of the upper give way groove; when the upper give way groove is flipped to the lower side, the lower give way groove is connected to the exhaust hole through the hole and the annular groove, and the air pump can be directly started at this time, so that the air pump can extract the gas in the lower give way groove through the exhaust hole, etc., which is simple and convenient.

[0019] 4. The present invention sets a counterweight slider, a fixed rod and a wiping block for use together. When the rotating plate flips, the flipped rotating plate drives the frame to flip. When the frame flips, the counterweight slider moves due to the influence of gravity. The moving counterweight slider drives the fixed rod and the wiping block to move, so that the wiping block wipes the transparent plate to prevent dust on the transparent plate from affecting the light transmittance of the transparent plate.

[0020] 5. The present invention provides a protrusion so that when the rod and the iron block move to a certain position, the protrusion can block them so that the rod and the iron block no longer move, thereby preventing the magnet plate from contacting the iron block. When the magnet plate rotates, the magnet plate will not rub against the iron block, thereby reducing resistance and facilitating the operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a diffusion film printing exposure machine proposed by the present invention;

[0022] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0023] Figure 3 It is a schematic diagram of the front cross-section structure of a diffusion film printing exposure machine proposed by the present invention;

[0024] Figure 4 for Figure 3 The enlarged structural diagram at B in the middle;

[0025] Figure 5 for Figure 4 The enlarged structural diagram at C in the middle;

[0026] Figure 6 A schematic diagram of the side cross-section structure of a diffusion film printing exposure machine proposed by the present invention;

[0027] Figure 7 This is a schematic cross-sectional structural diagram of the rotating plate proposed by the present invention;

[0028] Figure 8 The figure is a schematic diagram of the partial structure of a diffusion film printing exposure machine proposed by the present invention.

[0029] In the figure: 1. box body; 2. exposure lamp; 3. rotating plate; 4. giving way groove; 5. elastic shading film; 6. frame; 7. transparent plate; 8. rotating shaft; 9. motor; 10. missing gear; 11. full gear; 12. cavity; 13. plug rod; 14. plug hole; 15. iron block; 16. magnet plate; 17. spring; 18. vacuum pump; 19. annular groove; 20. fixed shaft; 21. suction hole; 22. exhaust hole; 23. hole; 24. soft cover; 25. connecting hole; 26. T-slot; 27. counterweight slider; 28. fixed rod; 29. ​​wiping block; 30. buckle plate; 31. bump; 32. cap. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0031] See also Figure 1-Figure 8 A diffusion film printing exposure machine includes a box body 1, an exposure lamp 2 is fixedly connected to the inner wall of the box body 1, a rotating plate 3 is rotatably connected to the inner wall of the box body 1, and a clearance groove 4 is opened on the upper and lower surfaces of the rotating plate 3, an elastic light-shielding film 5 is fixedly connected to the inner wall of the clearance groove 4, and a frame 6 is rotatably connected to the inner wall of the clearance groove 4, a transparent plate 7 is fixedly connected to the inner wall of the frame 6, a rotating shaft 8 is fixedly connected to one side wall of the rotating plate 3, and one end of the rotating shaft 8 passes through the box body 1 and extends to the outside of the box body 1, the outer wall of the box body 1 is fixedly connected to a driving mechanism, and a side wall of the box body 1 away from the driving mechanism is fixedly connected to an exhaust mechanism.

[0032] It can be seen from the above structure that: by opening the yield groove 4 on the upper and lower surfaces of the rotating plate 3 of the rotating plate, when in use, the product to be exposed can be placed in the upper yield groove 4, and then through the driving mechanism, the product to be exposed is flipped to the bottom for exposure, and the original yield groove 4 at the bottom is flipped to the top. In this way, when exposing, the yield groove 4 flipped to the top can be unloaded and loaded, so that the loading and unloading of the device will not delay the exposure of the device, thereby improving the efficiency of the device.

[0033] Furthermore, the driving mechanism includes a motor 9 fixedly connected to the outer wall of the box body 1, and the driving end of the motor 9 is fixedly sleeved with a missing gear 10, one end of the rotating shaft 8 located outside the box body 1 is fixedly connected to a full gear 11, a cavity 12 is opened inside the box body 1, and a plug rod 13 is slidably connected to the inner wall of the cavity 12, and one side wall of the rotating plate 3 is fixedly connected to two holes 14, both ends of the plug rod 13 pass through the box body 1, and one end of the plug rod 13 extends to the inside of the hole 14, and the other end of the plug rod 13 is fixedly connected to an iron block 15, a semi-annular groove is opened on one side wall of the missing gear 10, and a magnet plate 16 is fixedly connected to the inner wall of the semi-annular groove, the outer wall of the plug rod 13 is sleeved with a spring 17, and one end of the spring 17 is fixedly connected to the plug rod 13; by setting The missing gear 10, the plug rod 13 and the socket 14 are used in conjunction with each other, so that the motor 9 and the missing gear 10 can not only drive the rotating shaft 8 and the rotating plate 3 to flip the rotating plate 3, but also ensure the stability of the flipping angle and position of the rotating plate 3, and at the same time limit the rotating plate 3 to maintain the position of the rotating plate 3 and prevent the rotating plate 3 from rotating at will; when in use, start the motor 9 so that the motor 9 drives the missing gear 10 to rotate, and the rotating missing gear 10 drives the magnet plate 16 to rotate. After the magnet plate 16 rotates to one side of the iron block 15, the magnet plate 16 attracts the iron block 15, thereby causing the iron block 15 to move, and the moving iron block 15 drives the plug rod 13 to move, thereby causing one end of the plug rod 13 to disengage from the socket 14, so that the plug rod 13 releases the limit on the rotating plate 3;

[0034] After one end of the insertion rod 13 is disengaged from the insertion hole 14, the missing gear 10 rotates to a position meshing with the full gear 11, so that the missing gear 10 that continues to rotate drives the full gear 11 to rotate, the rotating full gear 11 drives the rotating shaft 8 to rotate, and the rotating rotating shaft 8 drives the rotating plate 3 to rotate, so that the rotating plate 3 flips over;

[0035] Before the rotating plate 3 flips over half a circle, the magnet plate 16 rotates to a position away from the iron block 15. At this time, the spring 17 will push the plug rod 13 to move, so that one end of the plug rod 13 is against the rotating plate 3. When the rotating plate 3 rotates half a circle, the missing gear 10 disengages from the full gear 11. At the same time, the spring 17 pushes the plug rod 13, so that one end of the plug rod 13 is inserted into another socket 14. At this time, the plug rod 13 can limit the rotating plate 3 to prevent the rotating plate 3 from rotating at will. At the same time, the plug rod 13 cooperates with the socket 14 to increase the accuracy of the position of the rotating plate 3 when it stops.

[0036] Furthermore, the air extraction mechanism includes an air extraction pump 18 fixedly connected to the box body 1, an annular groove 19 is provided at one end of the rotating plate 3 away from the rotating shaft 8, and a fixed shaft 20 is rotatably connected to the inner wall of the annular groove 19, one end of the fixed shaft 20 passes through the box body 1 and extends to the outside of the box body 1, and an air suction hole 21 and an air exhaust hole 22 are provided inside the fixed shaft 20, a hole 23 connecting the annular groove 19 and the giving way groove 4 is provided inside the rotating plate 3, a soft sleeve 24 is fixedly provided on the outer wall of the fixed shaft 20, and the outer wall of the soft sleeve 24 is interference fit with the inner wall of the annular groove 19, a connecting hole 25 is provided on the outer wall of the soft sleeve 24, one end of the air extraction pump 18 is connected to the exhaust hole 22 is connected; by setting the vacuum pump 18 for use with the fixed shaft 20, etc., when the lower give way groove 4 is flipped to the upper side, the upper give way groove 4 is connected with the suction hole 21 through the hole 23 and the annular groove 19, and the outside air can enter the upper give way groove 4 through the suction hole 21, so that the upper give way groove 4 can inhale to relieve the negative pressure of the upper give way groove 4; when the upper give way groove 4 is flipped to the lower side, the lower give way groove 4 is connected with the exhaust hole 22 through the hole 23 and the annular groove 19, and the vacuum pump 18 can be directly started at this time, so that the vacuum pump 18 can extract the gas in the lower give way groove 4 through the exhaust hole 22, etc., which is simple and convenient.

[0037] Furthermore, a T-shaped groove 26 is provided on one side wall of the frame 6, and a counterweight slider 27 is slidably connected to the inner wall of the T-shaped groove 26, and a fixing rod 28 is fixedly connected to one side wall of the counterweight slider 27, and a wiping block 29 is detachably connected to one side wall of the fixing rod 28, and one side wall of the wiping block 29 is in contact with the transparent plate 7; by setting the counterweight slider 27, the fixing rod 28 and the wiping block 29 for use together, when the rotating plate 3 is flipped, the flipped rotating plate 3 drives the frame 6 to flip, and when the frame 6 is flipped, the counterweight slider 27 is affected by gravity and moves, and the moving counterweight slider 27 drives the fixing rod 28 and the wiping block 29 to move, so that the wiping block 29 wipes the transparent plate 7 to prevent dust on the transparent plate 7 from affecting the light transmittance of the transparent plate 7.

[0038] Furthermore, a buckle plate 30 is fixedly connected to one side wall of the frame 6 ; by providing the buckle plate 30 , when the frame 6 and the transparent plate 7 are rotated, the frame 6 can be rotated by buckling the buckle plate 30 .

[0039] Furthermore, a rubber sleeve is provided on the outer wall fixing sleeve of the frame 6, and the outer wall of the rubber sleeve is interference fit with the inner wall of the easing groove 4; by providing the rubber sleeve, the air tightness between the frame 6 and the easing groove 4 can be increased, and at the same time, the tightness between the frame 6 and the easing groove 4 can be increased. When the frame 6 is buckled in the easing groove 4, the frame 6 will not open automatically without the action of external force.

[0040] Furthermore, a protrusion 31 is fixedly connected to a side wall of the insertion rod 13; by providing the protrusion 31, when the insertion rod 13 and the iron block 15 move to a certain position, the protrusion 31 can block them, so that the insertion rod 13 and the iron block 15 no longer move, and the magnet plate 16 will not contact the iron block 15. When the magnet plate 16 rotates, the magnet plate 16 will not rub against the iron block 15, so as to reduce resistance and facilitate the operation of the device.

[0041] Furthermore, a cover cap 32 is hingedly connected to the upper surface of the box body 1; through the cover cap 32, when the device is not used for a long time, the cover cap 32 can be covered to prevent dust from the outside from falling into the device.

[0042] In the present invention, when in use, by pressing the buckle plate 30, the upper frame 6 and the transparent plate 7 are turned open, and then the screen coated with photosensitive glue is placed on the upper elastic light-shielding film 5, and the film negative is placed on the screen coated with photosensitive glue, and then the frame 6 and the transparent plate 7 are covered, and the covered transparent plate 7 presses down the film negative and the screen, so that the pressed film negative and the screen are clamped between the upper elastic light-shielding film 5 and the transparent plate 7, and then the upper elastic light-shielding film 5 and the transparent plate 7 cooperate to clamp and fix the film negative and the screen;

[0043] Then, the motor 9 is started, so that the motor 9 drives the missing gear 10 to rotate, and the rotating missing gear 10 drives the magnet plate 16 to rotate. After the magnet plate 16 rotates to the side of the iron block 15, the magnet plate 16 attracts the iron block 15, thereby causing the iron block 15 to move. The moving iron block 15 drives the plug rod 13 to move, thereby causing one end of the plug rod 13 to disengage from the socket 14, so that the plug rod 13 releases the limit on the rotating plate 3;

[0044] After one end of the insertion rod 13 is disengaged from the insertion hole 14, the missing gear 10 rotates to a position meshing with the full gear 11, so that the missing gear 10 that continues to rotate drives the full gear 11 to rotate, the rotating full gear 11 drives the rotating shaft 8 to rotate, and the rotating rotating shaft 8 drives the rotating plate 3 to rotate, so that the rotating plate 3 flips over;

[0045] Before the rotating plate 3 turns over half a circle, the magnet plate 16 rotates to a position away from the iron block 15, and the spring 17 pushes the plug rod 13 to move, so that one end of the plug rod 13 abuts against the rotating plate 3. When the rotating plate 3 rotates half a circle, the missing gear 10 disengages from the meshing with the full gear 11, and the spring 17 pushes the plug rod 13, so that one end of the plug rod 13 is inserted into another insertion hole 14. At this time, the plug rod 13 can limit the rotating plate 3 to prevent the rotating plate 3 from rotating at will. At the same time, the plug rod 13 cooperates with the insertion hole 14, which can also increase the accuracy of the position of the rotating plate 3 when it stops.

[0046] After the rotating plate 3 turns over half a circle, the film and the screen also turn over to the bottom of the rotating plate 3. When the product after the previous exposure is turned over to the top of the rotating plate 3, the upper clearance groove 4 is connected with the suction hole 21 through the hole 23 and the annular groove 19, and the outside air can enter the upper clearance groove 4 through the suction hole 21, so that the upper clearance groove 4 can be inhaled to relieve the negative pressure of the upper clearance groove 4; the lower clearance groove 4 is connected with the exhaust hole 22 through the hole 23 and the annular groove 19, and the vacuum pump 18 can be started at this time, so that the vacuum pump 18 extracts the gas in the lower clearance groove 4 through the exhaust hole 22, etc., and after the vacuuming is completed, the exposure lamp 2 can be turned on for exposure;

[0047] During exposure, the upper frame 6 and transparent plate 7 can be turned open, the screen and film after exposure are removed, and then the next screen and film to be exposed are placed on the upper elastic shading film 5, and then covered with transparent plate 7 for the next exposure. In this way, when exposing below the rotating plate 3, loading and unloading can be completed above the rotating plate 3, so that the loading and unloading of the device will not delay the exposure of the device, thereby improving the efficiency of the device.

[0048] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A diffusion film printing exposure machine, comprising a housing (1), an exposure lamp (2) being fixedly connected to the inner wall of the housing (1), characterized in that: The inner wall of the box body (1) is rotatably connected to a rotating plate (3), and the upper surface and the lower surface of the rotating plate (3) are both provided with a clearance groove (4), the inner wall of the clearance groove (4) is fixedly connected to an elastic light-shielding film (5), and the inner wall of the clearance groove (4) is rotatably connected to a frame (6), the inner wall of the frame (6) is fixedly connected to a transparent plate (7), one side wall of the rotating plate (3) is fixedly connected to a rotating shaft (8), and one end of the rotating shaft (8) passes through the box body (1) and extends to the outside of the box body (1), the outer wall of the box body (1) is fixedly connected to a driving mechanism, and the side wall of the box body (1) away from the driving mechanism is fixedly connected to an exhaust mechanism; The driving mechanism comprises a motor (9) fixedly connected to the outer wall of the box body (1), and the driving end of the motor (9) is fixedly sleeved with a missing gear (10), one end of the rotating shaft (8) located outside the box body (1) is fixedly connected with a full gear (11), the interior of the box body (1) is provided with a cavity (12), and the inner wall of the cavity (12) is slidably connected with an insertion rod (13), one side wall of the rotating plate (3) is fixedly connected with two insertion holes (14), both ends of the insertion rod (13) pass through the box body (1), and one end of the insertion rod (13) extends to the inside of the insertion hole (14), and the other end of the insertion rod (13) is fixedly connected with an iron block (15), one side wall of the missing gear (10) is provided with a semi-annular groove, and the inner wall of the semi-annular groove is fixedly connected with a magnet plate (16), the outer wall of the insertion rod (13) is sleeved with a spring (17), and one end of the spring (17) is fixedly connected to the insertion rod (13); The air extraction mechanism comprises an air extraction pump (18) fixedly connected to the housing (1); an annular groove (19) is formed at one end of the rotating plate (3) away from the rotating shaft (8); and a fixed shaft (20) is rotatably connected to the inner wall of the annular groove (19); one end of the fixed shaft (20) penetrates the housing (1) and extends to the outside of the housing (1); and an air suction hole (21) and an air exhaust hole (22) are formed inside the fixed shaft (20); a hole (23) communicating with the annular groove (19) and the clearance groove (4) is formed inside the rotating plate (3); a soft sleeve (24) is fixedly provided on the outer wall of the fixed shaft (20); and the outer wall of the soft sleeve (24) is interference-fitted with the inner wall of the annular groove (19); a connecting hole (25) is formed on the outer wall of the soft sleeve (24); and one end of the air extraction pump (18) is connected to the air exhaust hole (22).

2. A diffusion film printing exposure machine according to claim 1, characterized in that: A T-shaped groove (26) is formed on one side wall of the frame (6), and a counterweight slider (27) is slidably connected to the inner wall of the T-shaped groove (26), a fixing rod (28) is fixedly connected to one side wall of the counterweight slider (27), and a wiping block (29) is detachably connected to one side wall of the fixing rod (28), and one side wall of the wiping block (29) is in contact with the transparent plate (7).

3. The diffusion film printing exposure machine according to claim 1, characterized in that: A buckle plate (30) is fixedly connected to one side wall of the frame (6).

4. The diffusion film printing exposure machine according to claim 1, characterized in that: The outer wall fixing sleeve of the frame (6) is provided with a rubber sleeve, and the outer wall of the rubber sleeve is interference fit with the inner wall of the clearance groove (4).

5. The diffusion film printing exposure machine according to claim 1, characterized in that: A protrusion (31) is fixedly connected to a side wall of the insertion rod (13).

6. The diffusion film printing exposure machine according to claim 1, characterized in that: The upper surface of the box body (1) is hingedly connected to a cover cap (32).

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