Four-side pressing plate mechanism of exposure machine

Abstract

The utility model relates to the technical field of exposure machines, and discloses a four-side pressing plate mechanism of an exposure machine, which comprises an exposure table and pressing plate assemblies arranged on the exposure table and used for pressing and fixing a pcb (printed circuit board), and is characterized in that the four pressing plate assemblies are arranged on the exposure table in a rectangular shape; wherein two of the pressing plate assemblies are in transmission connection with a first-direction moving assembly and a second-direction moving assembly respectively, the other two pressing plate assemblies are fixedly installed on the exposure table, and under the driving of the first-direction moving assembly and the second-direction moving assembly, the exposure table is driven by the first-direction moving assembly and the second-direction moving assembly. The two pressing plate assemblies can move along the length and width directions of the exposure table. According to the utility model, the pcb can be conveniently and rapidly pressed and fixed, the pressing and fixing position of the pcb can be rapidly adjusted, the processing efficiency is improved, and the pcb can be comprehensively pressed and fixed on the whole.

Description

Technical Field

[0001] The utility model relates to the technical field of exposure machines, in particular to a four-sided pressing plate mechanism of an exposure machine. Background Art

[0002] When PCB circuit boards are produced, circuit board exposure machines are usually used to perform light treatment on the circuit boards. In order to ensure the exposure quality, the circuit boards need to be stably positioned before exposure processing. This is mainly due to the fact that in the process of producing thin boards / small boards in the ink process and pattern formation process of the inner and outer layers of the PCB, the dry and wet process processing of the previous process will cause the PCB to have different degrees of expansion and contraction and strain, resulting in different degrees of warping / twisting / bow deformation of the PCB; at the same time, if the PCB size is too small to cover the entire exposure table, the vacuum suction plate will not have enough adsorption force on the PCB, which will also cause the corners of the PCB to warp; and the warping of the PCB will cause the exposure focal plane of the PCB to be inconsistent, which will eventually cause poor PCB exposure and defects, affecting product quality. The traditional positioning method, through the manual addition of fasteners such as bolts or nuts to achieve the locking and fixing of the circuit board, is inconvenient to quickly position the PCB board and quickly adjust the positioning position, affecting the processing efficiency; at the same time, there is a lack of comprehensive locking and fixing of the PCB board. During the processing, the PCB board still has warping, twisting, bowing or other types of deformation, which is easy to affect the quality of the formed product. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a four-sided pressure plate mechanism for an exposure machine, which solves the problem that it is inconvenient to quickly lock and position the board and quickly adjust the positioning position during the processing of PCB boards by the existing exposure machines, and the effect of PCB locking and positioning needs to be enhanced.

[0005] (II) Technical solution

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A four-sided pressure plate mechanism of an exposure machine comprises an exposure platform and a pressure plate assembly arranged on the exposure platform for pressing and fixing a PCB board, wherein four pressure plate assemblies are arranged on the exposure platform in a rectangular shape, wherein two of the pressure plate assemblies are respectively connected to a first direction moving assembly and a second direction moving assembly in a transmission manner, and the other two pressure plate assemblies are fixedly mounted on the exposure platform, and driven by the first direction moving assembly and the second direction moving assembly, the two pressure plate assemblies can move along the length and width directions of the exposure platform.

[0008] Preferably, the pressure plate assembly includes a rotating cylinder and a rotating beam fixedly connected to the piston end of the rotating cylinder, a plurality of clamping blocks are arranged at equal intervals on the rotating beam, and a connecting base fixedly connected to the rotating cylinder and a matching base rotatably connected to the rotating beam are respectively installed on the side walls of the exposure platform. The rotating cylinder can drive the rotating beam to rotate forward or reverse, so that the clamping blocks press or move away from the PCB board.

[0009] Preferably, the first-direction moving component includes a first linear module fixedly arranged on the lower end surface of the exposure platform and two first moving frames transmission-connected to the first linear module, the first moving frame is fixedly connected to a first connecting frame, one of the first connecting frames is fixedly connected to the rotating cylinder, and the other first connecting frame is rotationally connected to one end of the rotating beam via an extension frame.

[0010] Preferably, a through slot matching the extension frame is provided on the exposure platform, the through slot is arranged along the width direction of the exposure platform, and the extension frame can slide in the through slot.

[0011] Preferably, the second-direction moving component includes a second linear module fixedly arranged on the lower end surface of the exposure platform and a second movable frame transmission-connected to the second linear module, the lower portion of the second movable frame is fixedly connected to a connecting plate, both ends of the connecting plate are fixedly connected to second connecting frames, two second connecting frames are respectively fixedly connected to the rotating cylinder and rotatably connected to one end of the rotating beam, and the second connecting frames are respectively located on both sides of the exposure platform.

[0012] (III) Beneficial effects

[0013] The utility model has the following beneficial effects:

[0014] The four-sided pressing plate mechanism of the exposure machine can quickly press and fix the PCB board through the pressing plate assembly set on the exposure table, thereby improving the processing efficiency. At the same time, due to the use of multiple pressing plate assemblies arranged in a rectangular shape, the PCB board can be fully pressed and fixed, effectively avoiding the sudden deformation of the PCB board during the exposure process, thereby affecting the quality of the product after molding; at the same time, due to the first-direction moving assembly and the second-direction moving assembly set on the pressing plate assembly, the position of the PCB board being pressed and fixed can be conveniently adjusted in real time according to the processing needs, effectively improving the actual processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the main view of the utility model;

[0016] Figure 2 This is a schematic diagram of the through-notch layout structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the overall structure of the utility model when viewed from above;

[0018] Figure 4 This is a schematic diagram of the layout structure of the extension frame of the utility model;

[0019] Figure 5 This is a schematic diagram of the layout structure of the connecting plate of the utility model.

[0020] In the figure: 1. exposure platform; 2. pressure plate assembly; 21. rotating cylinder; 22. rotating beam; 23. clamping block; 3. first moving assembly; 31. first linear module; 32. first moving frame; 33. first connecting frame; 34. extension frame; 4. second moving assembly; 41. second linear module; 42. second moving frame; 43. connecting plate; 44. second connecting frame; 5. through slot; 6. connecting base; 7. matching base. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 The utility model provides a technical solution: a four-sided pressing plate mechanism of an exposure machine, comprising an exposure platform 1 and a pressing plate assembly 2 arranged on the exposure platform 1 to press and fix a PCB board, wherein four pressing plate assemblies 2 are arranged on the exposure platform 1 in a rectangular shape, wherein two pressing plate assemblies 2 are respectively connected to a first direction moving assembly 3 and a second direction moving assembly 4 by transmission, and the other two pressing plate assemblies 2 are fixedly installed on the exposure platform 1, and driven by the first direction moving assembly 3 and the second direction moving assembly 4, the two pressing plate assemblies 2 can move along the length and width directions of the exposure platform 1.

[0023] The utility model can quickly clamp and fix the PCB board by setting the pressure plate assembly 2 on the exposure platform 1, thereby improving the processing efficiency. At the same time, since multiple pressure plate assemblies 2 are arranged in a rectangular shape, the PCB board can be fully clamped and fixed, effectively avoiding the sudden deformation of the PCB board during the exposure process, thereby affecting the quality of the product after molding; at the same time, since the first moving assembly 3 and the second moving assembly 4 are set on the pressure plate assembly 2, the position of clamping and fixing the PCB board can be conveniently adjusted in real time according to the processing needs, effectively improving the actual processing efficiency.

[0024] Reference Figure 1 and 5As shown, in this embodiment, the pressure plate assembly 2 includes a rotating cylinder 21 and a rotating beam 22 fixedly connected to the piston end of the rotating cylinder 21, and a plurality of clamping blocks 23 are arranged at equal intervals on the rotating beam 22. The side walls of the exposure platform 1 are respectively installed with a connecting base 6 fixedly connected to the rotating cylinder 21 and a matching base 7 rotatably connected to the rotating beam 22. The rotating cylinder 21 can drive the rotating beam 22 to rotate forward or reverse, so that the clamping block 23 presses or moves away from the PCB board. When it is necessary to fully limit the PCB board, the rotating cylinder 21 is started, thereby driving the rotating beam 22 to rotate, so that the clamping block 23 presses and fixes the PCB board. By setting the first-direction moving assembly 3 and the second-direction moving assembly 4, it is convenient to quickly adjust the clamping and fixing position of the pressure plate assembly 2 for the PCB board, so as to improve the processing efficiency.

[0025] Reference Figure 3 and 4 As shown, in this embodiment, the first directional moving assembly 3 includes a first linear module 31 fixedly arranged on the lower end surface of the exposure platform 1 and two first moving frames 32 connected to the first linear module 31 in a transmission manner. The first moving frame 32 is fixedly connected to a first connecting frame 33, one first connecting frame 33 is fixedly connected to the rotating cylinder 21, and the other first connecting frame 33 is rotatably connected to one end of the rotating beam 22 through an extension frame 34. By setting the first linear module 31, when the position of the pressing plate assembly 2 needs to be adjusted, the first linear module 31 can drive the first moving frame 32 to move, thereby causing the first connecting frame 33 and the extension frame 34 to drive the entire pressing plate assembly 2 to move in a directional manner. When it moves to the required position, the rotating cylinder 21 is started, so that the pressing plate can press and fix the PCB board.

[0026] Reference Figure 2 and 4 As shown, in this embodiment, the exposure platform 1 is provided with a through slot 5 matching the extension frame 34, the through slot 5 is arranged along the width direction of the exposure platform 1, and the extension frame 34 can slide in the through slot 5. By providing the through slot 5, the exposure platform 1 can avoid limiting the travel of one end of the pressing plate assembly 2, and there is no need to use an overly long extension frame 34 to connect the end of the rotating beam 22 away from the rotating cylinder 21, which effectively reduces the size of the transmission structure between the first linear module 31 and the pressing plate assembly 2, effectively saving costs and reducing occupied space.

[0027] Reference Figure 3 and 5As shown, in this embodiment, the second moving assembly 4 includes a second linear module 41 fixedly arranged on the lower end surface of the exposure platform 1 and a second moving frame 42 drivingly connected to the second linear module 41, a connecting plate 43 is fixedly connected to the lower part of the second moving frame 42, and second connecting frames 44 are fixedly connected to both ends of the connecting plate 43. The two second connecting frames 44 are respectively fixedly connected to the rotating cylinder 21 and rotatably connected to one end of the rotating beam 22, and the second connecting frames 44 are respectively located on both sides of the exposure platform 1. When it is necessary to adjust the position of the pressing plate assembly 2 along the length direction of the PCB board, the second linear module 41 drives the second moving frame 42 to move, and then the connecting plate 43 drives the pressing plate assembly 2 between the second connecting frames 44 to move in a directional manner, so that the pressing plate assembly 2 can press and fix the PCB boards at different length positions.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0029] 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 four-sided pressing plate mechanism of an exposure machine, comprising an exposure platform and a pressing plate assembly arranged on the exposure platform to press and fix a PCB board, characterized in that: The four pressure plate assemblies are arranged in a rectangular shape on the exposure platform, two of which are respectively connected to the first-direction moving assembly and the second-direction moving assembly, and the other two pressure plate assemblies are fixedly installed on the exposure platform. Driven by the first-direction moving assembly and the second-direction moving assembly, the two pressure plate assemblies can move along the length and width directions of the exposure platform.

2. The four-side pressing plate mechanism of an exposure machine according to claim 1, characterized in that: The pressure plate assembly includes a rotating cylinder and a rotating beam fixedly connected to the piston end of the rotating cylinder, a plurality of clamping blocks are arranged at equal intervals on the rotating beam, and a connecting base fixedly connected to the rotating cylinder and a matching base rotatably connected to the rotating beam are respectively installed on the side walls of the exposure platform. The rotating cylinder can drive the rotating beam to rotate forward or reverse, so that the clamping blocks press or move away from the PCB board.

3. The four-side pressing plate mechanism of an exposure machine according to claim 2, characterized in that: The first-direction moving component includes a first linear module fixedly arranged on the lower end surface of the exposure platform and two first moving frames transmission-connected to the first linear module, the first moving frame is fixedly connected to a first connecting frame, one of the first connecting frames is fixedly connected to the rotating cylinder, and the other first connecting frame is rotationally connected to one end of the rotating beam via an extension frame.

4. The four-side pressing plate mechanism of an exposure machine according to claim 3, characterized in that: The exposure platform is provided with a through slot matching the extension frame. The through slot is arranged along the width direction of the exposure platform, and the extension frame can slide in the through slot.

5. The four-side pressing plate mechanism of an exposure machine according to claim 3 or 4, characterized in that: The second-direction moving component includes a second linear module fixedly arranged on the lower end surface of the exposure platform and a second moving frame transmission-connected to the second linear module, the lower part of the second moving frame is fixedly connected to a connecting plate, both ends of the connecting plate are fixedly connected to second connecting frames, two second connecting frames are respectively fixedly connected to the rotating cylinder and rotatably connected to one end of the rotating beam, and the second connecting frames are respectively located on both sides of the exposure platform.

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