Double-sided exposure machine with good exposure effect

Abstract

The utility model provides a double-sided exposure machine with a good exposure effect, which relates to the technical field of exposure machines, and comprises symmetrically arranged L-shaped moving frames, first sliding rails are arranged at the tops of the opposite sides of the two L-shaped moving frames, a sliding shading plate is slidably connected to the outer sides of the first sliding rails, and the outgoing end part of the sliding shading plate is connected with an L-shaped combination block; the rear end of the L-shaped combination block is connected with an electric telescopic rod, and the top and the bottom of the L-shaped movable frame are connected with a top exposure machine and a bottom exposure machine respectively. In the prior art, UV light may not completely pass through high-transmittance exposure between a top exposure machine and a bottom exposure machine, and the non-penetrating UV light may be refracted to a flexible resin plate to cause secondary exposure to influence the thickness of the bottom of the flexible resin plate and the plate making precision, and the existing shading mechanism mostly adopts a fixed or manual adjustment mode. And the production efficiency is reduced.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to the exposure machine technical field, concretely relates to a double -sided exposure machine of good exposure effect. BACKGROUND

[0002] In the field of PCB (printed circuit board), FPC (flexible circuit board) and semiconductor manufacturing, double -sided exposure machine is a kind of key equipment, is used to carry out ultraviolet (UV) light exposure to the upper and lower two sides of substrate simultaneously to complete pattern transfer.The traditional double -sided exposure machine usually adopts two groups of UV light source to the double -sided exposure of substrate respectively, but in actual operation process, there are following technical problems:

[0003] Light shielding interference when bottom exposure: part of equipment when bottom exposure, light shield still keeps the state of extension, although it can reduce the influence of stray light, but will shield part UV light, reduce exposure efficiency, even cause uneven exposure.

[0004] Light reflection problem when top exposure: when top exposure, if light shield is not completely closed or design is unreasonable, UV light can not completely penetrate the high light transmittance exposure between top exposure machine and bottom exposure machine, and the UV light that does not penetrate will be refracted to the flexible resin plate, causing secondary exposure to affect the thickness of flexible resin plate bottom and plate making precision.

[0005] Mechanical structure is complex: the existing light shielding mechanism adopts fixed type or manual adjustment mode, is difficult to switch quickly between upper and lower exposure mode, leads to the reduction of production efficiency, and light shielding effect is easily influenced by mechanical wear.

[0006] It should be noted that the above content belongs to the technical cognition of the inventor, and since the technical content in the art is vast and complex, the above content of the present application does not necessarily constitute the prior art. UTILITY MODEL CONTENT

[0007] 1. The technical problem to be solved by the utility model:

[0008] The utility model provides a double -sided exposure machine of good exposure effect to solve the technical problems in the above background technology.

[0009] 2. Technical scheme:

[0010] In order to achieve the above object, the utility model provides technical scheme for: a double -sided exposure machine of good exposure effect, including the L shape moving frame of symmetrical arrangement, one side top of two L shape moving frames is equipped with first sliding rail, the first sliding rail outside slide connection sliding light shield, the sliding light shield outer end part is connected L shape combination block, the L shape combination block rear end is connected electric telescopic handle, the L shape moving frame top and bottom are connected top exposure machine and bottom exposure machine respectively, when the device is exposed to light operation, the bottom exposure machine starts work first, the electric telescopic handle is retracted state when the bottom exposure machine works, the light shield is in the closed state, when the bottom exposure machine work is finished, need carry out top exposure, the bottom exposure machine stops operation, then top exposure machine starts operation, before top exposure machine operation, the electric telescopic handle drives L shape combination block and moves outward, in turn drive sliding light shield and cover bottom exposure machine panel, in this way, when top exposure machine works, its exposure light source will not be reflected by the panel of bottom exposure machine, improve exposure effect, after top exposure ends, the electric telescopic handle drives sliding light shield and retracts, the device can prevent its light from being reflected by the panel of bottom and reduce exposure uniformity when top exposure machine works through the setting sliding light shield that can freely telescopic cover, the mode of electric telescopic handle can also realize automatic operation well, improve exposure efficiency.

[0011] Further, the first sliding rail bottom side is equipped with a fixed light shield, the sliding light shield is overlapped with the fixed light shield when retracted, and the fixed light shield is detachably connected with the L-shaped moving frame on both sides.

[0012] Further, the outer surface of the fixed light shield and the sliding light shield is black.

[0013] Further, the L-shaped moving frame groove side is equipped with a first sliding block, the first sliding block is matched and connected with a second sliding rail, the second sliding rail is arranged on the side of the exposure workbench, the second sliding rail bottom is equipped with a rack, the L-shaped moving frame is equipped with a drive motor, the drive motor rotating shaft is connected with a rotating gear, and the rotating gear is engaged with the rack.

[0014] Further, the side of the top exposure machine is connected with a side support frame, and the top of the side support frame is connected with a cooling fan.

[0015] Further, the bottom surface of the exposure workbench is equipped with universal rollers at four corners, and the side of the universal rollers is equipped with a liftable support rubber pad.

[0016] Further, the light source of the top exposure machine and the bottom exposure machine is an adjustable LED array.

[0017] 3. Beneficial effects:

[0018] Compared with the prior art, the technical scheme has the beneficial effects that:

[0019] The utility model discloses the rationality of design, first through the synergistic effect of sliding sunshading board and fixed sunshading board, effectively prevent the light source of top exposure machine from being reflected by bottom panel, significantly improve the exposure uniformity and precision, and black matte material further reduces light scattering, and ensure exposure quality.

[0020] Secondly, the design of driving sunshading board by electric telescopic rod and driving motor and moving frame realizes the automatic control of exposure process, improves the operation efficiency, and can adapt to the moving exposure demand, and enhances the flexibility and applicability of equipment.

[0021] Finally, the modular design (such as adjustable LED light source, heat dissipation system and liftable support structure) not only optimizes exposure effect, but also considers energy consumption control and operation convenience, and improves the stability and practicality of equipment as a whole.

[0022] It should be noted that the structures not introduced in the utility model are the same as the prior art or can be realized by using the prior art, and do not involve the design points and improvement direction of the utility model, and details are not repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the structural schematic diagram of the utility model;

[0024] Figure 2 It is the A place enlarged structural schematic diagram of the utility model Figure 1 ;

[0025] Figure 3 It is the L shape moving frame structural schematic diagram of the utility model;

[0026] Figure 4 It is the B place enlarged structural schematic diagram of the utility model Figure 3 ;

[0027] Figure 5 It is the structural schematic diagram of the utility model;

[0028] Figure 6 It is the C place enlarged structural schematic diagram of the utility model Figure 5 ;

[0029] Markings:

[0030] 1, L-shaped moving frame; 11, first slider; 2, first sliding rail; 21, fixed light shield; 3, sliding light shield; 4, L-shaped connecting block; 5, electric telescopic rod; 6, top exposure machine; 61, side support frame; 62, cooling fan; 7, bottom exposure machine; 8, exposure workbench; 81, universal roller; 82, support rubber pad; 12, second sliding rail; 13, rack; 14, driving motor; 15, rotating gear. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings, in which several embodiments of the present application are given. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0032] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description. Therefore, it cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0033] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0034] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing", "provided with", "provided in" and the like should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] It should be noted that the structures not introduced in the present application do not involve the design points and improvement direction of the present application, and can adopt the existing technology known to those skilled in the art.

[0036] The specific implementation of the present application is described in detail below in connection with specific embodiments.

[0037] Referring to the drawings Figures 1-6 A double-sided exposure machine with good exposure effect, comprising two L-shaped moving frames 1 arranged symmetrically, a first sliding rail 2 is arranged on the top of the opposite side of each L-shaped moving frame 1, a sliding light shield 3 is slidably connected to the outer side of the first sliding rail 2, an L-shaped connecting block 4 is connected to the outer end of the sliding light shield 3, an electric telescopic rod 5 is connected to the rear end of the L-shaped connecting block 4, and a top exposure machine 6 and a bottom exposure machine 7 are respectively connected to the top and bottom of the L-shaped moving frame 1. When the device is used for exposure operation, a flexible resin plate is placed on the transparent placing glass in the middle of the exposure machine 7, the bottom exposure machine 7 works, and the electric telescopic rod 5 is in a retracted state when the bottom exposure machine 7 works, and the light shield is in a closed state. When the bottom exposure machine 7 stops working, the top exposure machine 6 starts working, and before the top exposure machine 6 works, the electric telescopic rod 5 drives the L-shaped connecting block 4 to move outward, thereby driving the sliding light shield 3 to cover the panel of the bottom exposure machine 7. In this way, when the top exposure machine 6 works, the exposure light source thereof will not be reflected by the panel of the bottom exposure machine 7, thereby improving the exposure effect. After the top exposure is completed, the electric telescopic rod 5 drives the sliding light shield 3 to retract. The device can prevent the light of the top exposure machine 6 from being reflected by the panel of the bottom exposure machine 7 and reduce the uniformity of exposure by setting the sliding light shield 3 that can freely extend and retract. The electric telescopic rod 5 can also be used to realize automatic operation and improve the exposure efficiency.

[0038] A fixed light shield 21 is arranged on one side of the bottom of the first sliding rail 2, and the fixed light shield 21 is coincident with the sliding light shield 3 when the sliding light shield 3 retracts. The fixed light shield 21 is detachably connected to the L-shaped moving frame 1 on both sides. The cooperation of the fixed light shield 21 and the sliding light shield 3 can improve the shielding range, thereby enabling the top exposure machine 6 with a large exposure range to be installed on the top, and improving the exposure area. When the top exposure machine 6 works, the sliding light shield 3 slides outward to achieve the light shielding effect.

[0039] The outer surfaces of the fixed light shield 21 and the sliding light shield 3 are black. Black material has very low reflectivity, and matte black material is preferably used to effectively absorb UV light and prevent light from penetrating or scattering to non-target areas.

[0040] The L-shaped moving frame 1 is provided with a first sliding block 11 on the groove side, the first sliding block 11 is matched and connected with a second sliding rail 12, the second sliding rail 12 is arranged on the side of the exposure workbench 8, the bottom of the second sliding rail 12 is provided with a rack 13, a driving motor 14 is arranged on the L-shaped moving frame 1, a rotating gear 15 is connected with the rotating shaft of the driving motor 14, the rotating gear 15 is engaged with the rack 13, the device can be moved for exposure operation, when working, the substrate to be exposed is placed on the transparent plate in the middle of the exposure workbench 8, when continuous exposure operation is needed, the driving motor 14 starts to work and drives the rotating gear 15 to rotate, since the rotating gear 15 is engaged with the rack 13, the L-shaped moving frame 1 can be moved on the exposure workbench 8 to meet the requirement of moving exposure.

[0041] The side surface of the top exposure machine 6 is connected with a side surface support frame 61, the top of the side surface support frame 61 is connected with a heat dissipation fan 62, the air outlet of the heat dissipation fan 62 is aligned with the bottom exposure workbench 8, and the substrate after exposure is timely heat-dissipated.

[0042] The bottom surface of the exposure workbench 8 is provided with universal rollers 81 at four corners, the universal rollers 81 are provided with liftable support rubber pads 82 on the side surface, the universal rollers 81 facilitate the movement operation of the whole device, and the support rubber pads 82 can be lifted to position the exposure workbench 8 after the exposure workbench 8 is moved to the preset position.

[0043] The light source of the top exposure machine 6 and the bottom exposure machine 7 is an adjustable LED array, the wavelength and intensity of the adjustable LED array are adjusted through an independent controller, different exposure intensities are set according to the exposure condition, the exposure effect is improved, and the power is saved.

[0044] The above-mentioned embodiments only express certain implementation manners of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application; it should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application; therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A double-sided exposure machine with good exposure effect, characterized in that: The device includes symmetrically arranged L-shaped moving frames (1), with a first slide rail (2) on the top of one side of each of the two L-shaped moving frames (1). A sliding light shield (3) is slidably connected to the outside of the first slide rail (2). An L-shaped connecting block (4) is connected to the outer end of the sliding light shield (3). An electric telescopic rod (5) is connected to the rear end of the L-shaped connecting block (4). A top exposure machine (6) and a bottom exposure machine (7) are respectively connected to the top and bottom of the L-shaped moving frames (1).

2. The double-sided exposure machine with good exposure effect according to claim 1, characterized in that: The bottom side of the first slide rail (2) is provided with a fixed light shield (21). When the sliding light shield (3) retracts, it overlaps with the fixed light shield (21). The fixed light shield (21) is detachably connected to the L-shaped moving frame (1) on both sides.

3. The double-sided exposure machine with good exposure effect according to claim 2, characterized in that: The outer surfaces of the fixed light-shielding plate (21) and the sliding light-shielding plate (3) are black.

4. The double-sided exposure machine with good exposure effect according to claim 1, characterized in that: The L-shaped moving frame (1) has a first slider (11) on the groove side, the first slider (11) is matched and connected to the second slide rail (12), the second slide rail (12) is located on the side of the exposure worktable (8), the bottom of the second slide rail (12) is provided with a rack (13), the L-shaped moving frame (1) is provided with a drive motor (14), the drive motor (14) is connected to a rotating gear (15) on the rotating shaft, and the rotating gear (15) meshes with the rack (13).

5. A double-sided exposure machine with good exposure effect according to claim 1, characterized in that: The top exposure machine (6) is connected to a side support frame (61) on the side, and a cooling fan (62) is connected to the top of the side support frame (61).

6. A double-sided exposure machine with good exposure effect according to claim 4, characterized in that: The exposure worktable (8) has universal rollers (81) at the four corners of its bottom surface, and the universal rollers (81) have adjustable support pads (82) on their sides.

7. A double-sided exposure machine with good exposure effect according to claim 1, characterized in that: The light sources of the top exposure machine (6) and the bottom exposure machine (7) are adjustable LED arrays.

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