Circuit board pattern exposure machine

Abstract

The utility model relates to the technical field of circuit board pattern transfer processing, and discloses a circuit board pattern exposure machine which comprises an exposure machine body, an exposure area is arranged on the exposure machine body, a hollow rubber frame is arranged on the exposure area, a lifting structure is arranged on the exposure area, the lifting structure is movably connected with the hollow rubber frame, and the hollow rubber frame is arranged on the lifting structure. The exposure area and the lifting structure are respectively provided with a camera, the cameras are used for automatically measuring expansion and contraction of a target grabbing hole and automatically aligning, the bottom surface of the exposure area is provided with a lower liquid crystal glass table top, the lower liquid crystal glass table top is located in the middle of the hollow rubber frame, and the cameras are located below the lower liquid crystal glass table top. The surface of the lower liquid crystal glass table top is wrapped with a tempered film, a fixing hole is formed in the bottom face of the exposure area, and the bottom wall of an inner cavity of the fixing hole is fixedly connected with the lifting structure. According to the utility model, the exposure efficiency can be improved, film tools are saved, and the precision of mechanical holes and patterns can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board pattern transfer processing, in particular to a circuit board pattern exposure machine. Background Art

[0002] An exposure machine is a device used in the production of PCBs, printed circuit boards, and image printing industries. Its main function is to form a pattern by projecting light onto photosensitive materials, partially exposing the photosensitive materials to light, and then further processing them to form the desired pattern or circuit.

[0003] At present, there are two main types of graphic transfer exposure machine technology development:

[0004] Traditional old-style LED light source exposure machines require film for production, but they have the following disadvantages: 1) The material replacement process takes a long time; 2) The film is prone to expansion and contraction during storage, which results in high costs; 3) The expansion and contraction of incoming materials from the previous process needs to be measured in advance by two-dimensional measurement; 4) The process exposure is prone to film movement and exposure deviation; 5) The alignment time is long;

[0005] The more advanced laser LDI exposure machines currently have defects in production: 1) they use tabletop vacuum suction, and when the board thickness is greater than 2.0mm and the single piece is greater than 4 feet, it is easy to have poor vacuum suction and exposure deviation; 2) they can only expose on one side, which is inefficient. Therefore, we proposed a circuit board graphic exposure machine. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the utility model provides a circuit board graphic exposure machine, which has the advantages of improving exposure efficiency, saving film tools, and improving mechanical hole and graphic accuracy, thereby solving the above problems.

[0008] (II) Technical solution

[0009] In order to achieve the above-mentioned purpose of improving exposure efficiency, saving film tools, and improving mechanical holes and graphic accuracy, the utility model provides the following technical solutions: a circuit board graphic exposure machine, including an exposure machine, the exposure machine is provided with an exposure area, the exposure area is provided with a hollow rubber frame, the exposure area is provided with a lifting structure, the lifting structure and the hollow rubber frame are movably connected, and cameras are provided on the exposure area and the lifting structure, the camera is used to capture the target hole, automatically measure the expansion and contraction, and automatically align, and move closer to the exposure area through the lifting structure until the lifting structure contacts the hollow rubber frame. At this time, the camera captures the target hole, automatically measures the expansion and contraction, and automatically aligns, and then starts the exposure machine to work, so as to improve the exposure efficiency, save film tools, and improve the mechanical holes and graphic accuracy.

[0010] As a preferred technical solution of the present utility model, a lower liquid crystal glass tabletop is provided on the bottom surface of the exposure area. The lower liquid crystal glass tabletop is located at the middle position of the hollow rubber frame, and the camera is located below the lower liquid crystal glass tabletop.

[0011] As a preferred technical solution of the present utility model, a tempered film is wrapped on the surface of the lower liquid crystal glass tabletop to facilitate the protection of the lower liquid crystal glass tabletop.

[0012] As a preferred technical solution of the present utility model, fixing holes are formed on the bottom surface of the exposure area. The inner cavity bottom wall of the fixing holes is fixedly connected to the lifting structure, so as to facilitate the installation and fixation of the lifting structure.

[0013] As a preferred technical solution of the present utility model, the lifting structure includes an electric push rod. The bottom end of the electric push rod is fixedly connected to the inner cavity bottom wall of the fixing hole. The top end of the electric push rod is fixedly installed with an adapter block. The inner side of the adapter block is fixedly installed with an upper frame. The inner cavity top wall of the upper frame is fixedly connected to the camera. The upper frame is movably connected to the hollow rubber frame. An upper liquid crystal glass tabletop is fixedly installed on the bottom end surface of the inner cavity of the upper frame. By starting the electric push rod, at this time, the electric push rod drives the adapter block to move, the adapter block drives the upper frame to move, and drives the upper liquid crystal glass tabletop to move towards the direction of the lower liquid crystal glass tabletop until the upper frame contacts the hollow rubber frame. At the same time, the camera automatically measures the expansion and contraction of the target hole and automatically aligns. Then, the exposure machine is started. At this time, the lower liquid crystal glass tabletop and the upper liquid crystal glass tabletop automatically form a pattern, vacuum press the flat surface, and can perform double-sided exposure, so as to facilitate improving the exposure efficiency, saving the film tool, and improving the mechanical hole and pattern accuracy.

[0014] As a preferred technical solution of the present utility model, a tempered film is wrapped on the surface of the upper liquid crystal glass tabletop to facilitate the protection of the upper liquid crystal glass tabletop.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present utility model provides a circuit board pattern exposure machine, which has the following

[0017] Beneficial effects:

[0018] The circuit board pattern exposure machine starts the electric push rod. At this time, the electric push rod drives the connecting block to move. The connecting block drives the upper frame to move and drives the upper liquid crystal glass table to move towards the lower liquid crystal glass table until the upper frame contacts the hollow rubber frame. At the same time, the upper and lower cameras automatically measure the expansion and contraction of the target holes and automatically align. Then, the exposure machine is started. At this time, the lower liquid crystal glass table and the upper liquid crystal glass table automatically form a pattern, and the vacuum pressing flat surface can perform double-sided exposure, thereby improving the exposure efficiency, saving the film tool, and improving the mechanical hole and pattern accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the front perspective view of the present utility model;

[0020] Figure 2 is the bottom perspective view of the present utility model.

[0021] In the figure: 1. Exposure machine; 2. Exposure area; 21. Fixed hole; 22. Lower liquid crystal glass table; 3. Hollow rubber frame; 4. Lifting structure; 41. Electric push rod; 42. Connecting block; 43. Upper frame; 44. Upper liquid crystal glass table. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be made with reference to the accompanying drawings of the specification.

[0023] Referring to Figure 1-2 , a circuit board pattern exposure machine is provided, including an exposure machine 1. An exposure area 2 is provided on the exposure machine 1. A hollow rubber frame 3 is provided on the exposure area 2. A lifting structure 4 is provided on the exposure area 2. The lifting structure 4 is movably connected to the hollow rubber frame 3. Cameras are provided on both the exposure area 2 and the lifting structure 4. The cameras are used for automatically measuring the expansion and contraction of the target holes and automatically aligning.

[0024] A lower liquid crystal glass table 22 is provided on the bottom surface of the exposure area 2. The lower liquid crystal glass table 22 is located in the middle of the hollow rubber frame 3, and the camera is located below the lower liquid crystal glass table 22.

[0025] The surface of the lower liquid crystal glass table 22 is wrapped with a tempered film.

[0026] Fixing holes 21 are formed on the bottom surface of the exposure area 2. The inner cavity bottom wall of the fixing holes 21 is fixedly connected to the lifting structure 4.

[0027] The lifting structure 4 includes an electric push rod 41. The bottom end of the electric push rod 41 is fixedly connected to the inner bottom wall of the fixing hole 21. The top end of the electric push rod 41 is fixedly installed with an adapter block 42. The inner side of the adapter block 42 is fixedly installed with an upper frame 43. The inner top wall of the upper frame 43 is fixedly connected to the camera. The upper frame 43 is movably connected to the hollow rubber frame 3. The bottom end surface of the inner cavity of the upper frame 43 is fixedly installed with an upper liquid crystal glass tabletop 44.

[0028] The surface of the upper liquid crystal glass tabletop 44 is wrapped with a tempered film.

[0029] Working principle: During the use process, by starting the electric push rod 41 fixed on the fixing hole 21, at this time, the electric push rod 41 drives the adapter block 42 fixed on the top end of the electric push rod 41 to move. The adapter block 42 drives the upper frame 43 to move, and drives the upper liquid crystal glass tabletop 44 to move in the direction of the lower liquid crystal glass tabletop 22 until the upper frame 43 contacts the hollow rubber frame 3. At the same time, the upper and lower cameras automatically measure the expansion and contraction of the target holes and automatically align. Then start the exposure machine 1. At this time, the lower liquid crystal glass tabletop 22 and the upper liquid crystal glass tabletop 44 automatically form a pattern, vacuum press the flat surface, and can perform double-sided exposure, thereby improving the exposure efficiency, saving the film tool, and improving the mechanical hole and pattern accuracy. This device can not only improve the exposure efficiency and save the film tool, but also improve the mechanical hole and pattern accuracy.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limitations. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A circuit board pattern exposure machine, comprising an exposure machine (1), characterized in that: The exposure machine (1) is provided with an exposure area (2), the exposure area (2) is provided with a hollow rubber frame (3), the exposure area (2) is provided with a lifting structure (4), the lifting structure (4) and the hollow rubber frame (3) are movably connected, and cameras are provided on the exposure area (2) and the lifting structure (4), and the cameras are used to capture the target hole, automatically measure the expansion and contraction, and automatically align.

2. A circuit board pattern exposure machine according to claim 1, characterized in that: A lower liquid crystal glass table (22) is provided on the bottom surface of the exposure area (2), the lower liquid crystal glass table (22) is located in the middle of the hollow rubber frame (3), and the camera is located below the lower liquid crystal glass table (22).

3. A circuit board pattern exposure machine according to claim 2, characterized in that: The surface of the lower liquid crystal glass table (22) is wrapped with a tempered film.

4. A circuit board pattern exposure machine according to claim 1, characterized in that: A fixing hole (21) is provided on the bottom surface of the exposure area (2), and the inner cavity bottom wall of the fixing hole (21) is fixedly connected to the lifting structure (4).

5. A circuit board pattern exposure machine according to claim 4, characterized in that: The lifting structure (4) comprises an electric push rod (41), the bottom end of the electric push rod (41) is fixedly connected to the bottom wall of the inner cavity of the fixing hole (21), a connecting block (42) is fixedly installed on the top end of the electric push rod (41), an upper frame (43) is fixedly installed on the inner side of the connecting block (42), the inner cavity top wall of the upper frame (43) is fixedly connected to the camera, the upper frame (43) is movably connected to the hollow rubber frame (3), and an upper liquid crystal glass table (44) is fixedly installed on the bottom end surface of the inner cavity of the upper frame (43).

6. A circuit board pattern exposure machine according to claim 5, characterized in that: The surface of the upper liquid crystal glass table (44) is wrapped with a tempered film.

Images