Bilateral pressing plate mechanism of exposure machine

Abstract

The utility model relates to the technical field of exposure machines, and discloses a double-side pressing plate mechanism of an exposure machine, which comprises an exposure table and two groups of pressing plate components for pressing and positioning a pcb (printed circuit board) on the exposure table, one group of pressing plate components is fixedly arranged on the exposure table, and the other group of pressing plate components is fixedly arranged on the exposure table. One group of pressing plate assemblies can be used for pressing and positioning pcb plates at different positions along the length direction of the exposure table; the pressing plate assembly comprises a pressing plate, and when the pcb is pressed and positioned, the pressing plate elastically presses the pcb. According to the utility model, the pcb can be quickly pressed and positioned, and meanwhile, the pressing and positioning position of the pcb can be conveniently adjusted in real time according to processing requirements, so that the processing efficiency of the exposure machine is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of exposure machines, in particular to a double-side 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 board needs to be stably positioned before the exposure process. This is mainly because in the process of producing thin boards / small boards in the ink process and graphic 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 vacuum 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, ultimately resulting in poor PCB exposure and defects, affecting product quality. The traditional positioning method is to manually add fasteners such as bolts or nuts to achieve the locking and fixation of the circuit board. The traditional positioning method is not only inefficient, but also inconvenient to quickly adjust the fixed position, affecting the exposure quality and processing efficiency. 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 double-sided pressure plate mechanism for an exposure machine, which solves the problem that when the prior exposure machine positions a PCB board on an exposure table, the working efficiency is low and it is inconvenient to quickly adjust the positioning position of the PCB board according to processing requirements.

[0005] (II) Technical solution

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

[0007] A double-sided pressure plate mechanism of an exposure machine comprises an exposure platform and two groups of pressure plate assemblies for pressing and positioning a PCB on the exposure platform, one group of the pressure plate assemblies is fixedly arranged on the exposure platform, and the other group of the pressure plate assemblies can press and position PCBs at different positions along the length direction of the exposure platform; the pressure plate assemblies comprise a pressing plate, and when the PCB is pressed and positioned, the pressing plate elastically presses the PCB.

[0008] Preferably, the pressure plate assembly includes a rotating cylinder, one side of the rotating cylinder is fixedly connected to a mounting base, the piston end of the rotating cylinder is fixedly connected to a transmission beam, the end of the transmission beam away from the rotating cylinder is rotatably connected to a matching base, a group of the mounting base and the matching base are respectively fixedly arranged on both sides of the exposure platform, the transmission beam is fixedly connected to a mounting beam, and a plurality of the pressure plates are arranged on the mounting beam at equal intervals.

[0009] Preferably, connecting pieces are symmetrically and slidably arranged on the clamping plate, the connecting pieces are fixedly connected to the mounting beam, and an elastic piece is sleeved on the outside of the connecting piece and located between the clamping plate and the mounting beam.

[0010] Preferably, the connecting member is a polished bolt, and the polished bolt is threadedly connected to the mounting beam.

[0011] Preferably, a linear module is symmetrically arranged on the lower end surface of the exposure platform, a movable frame is transmission-connected to the linear module, and the movable frame is fixedly connected to a group of the mounting base and the matching base.

[0012] Preferably, the lower end surface of the exposure platform is located at one end of one of the linear modules and is transmission-connected to a driving motor, and the output shaft end of the driving motor drives the other linear module to move synchronously through a synchronous shaft.

[0013] (III) Beneficial effects

[0014] The utility model has the following beneficial effects:

[0015] The double-sided pressure plate mechanism of the exposure machine is equipped with a pressure plate assembly that can move along the length direction of the exposure platform, so that the pressing position of the PCB board can be adjusted in real time according to actual needs, so as to facilitate efficient exposure processing without stopping the machine; at the same time, since elastic pressure is adopted between the pressure plate and the PCB board, the entire pressure plate assembly can adapt to PCB boards of different thicknesses, effectively improving the applicability of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the main view of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the utility model when viewed from above;

[0018] Figure 3 This is a schematic diagram of the installation structure of the pressure plate assembly and the linear module of the utility model.

[0019] In the figure: 1. exposure platform; 2. pressure plate assembly; 21. mounting base; 22. rotating cylinder; 23. matching base; 24. transmission beam; 25. mounting beam; 26. clamping plate; 27. connecting part; 28. elastic part; 3. moving frame; 4. driving motor; 5. linear module; 6. synchronous axis. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1 The utility model provides a technical solution: a double-sided pressure plate mechanism of an exposure machine, comprising an exposure platform 1 and two groups of pressure plate assemblies 2 for pressing and positioning a PCB on the exposure platform 1, one group of pressure plate assemblies 2 is fixedly arranged on the exposure platform 1, and one group of pressure plate assemblies 2 can press and position a PCB board at different positions along the length direction of the exposure platform 1; the pressure plate assembly 2 includes a pressing plate 26, and when the PCB board is pressed and positioned, the pressing plate 26 elastically presses the PCB board.

[0022] The utility model, by providing a pressing plate assembly 2 that can move along the length direction of the exposure platform 1, can adjust the pressing position of the PCB board in real time according to actual needs, so as to facilitate efficient exposure processing without stopping the machine; at the same time, since elastic pressing is adopted between the pressing plate 26 and the PCB board, the entire pressing plate assembly 2 can adapt to PCB boards of different thicknesses, effectively improving the applicability of the entire device.

[0023] Reference Figure 1 and 3 As shown, in this embodiment, the pressing plate assembly 2 includes a rotating cylinder 22, one side of the rotating cylinder 22 is fixedly connected to a mounting base 21, the piston end of the rotating cylinder 22 is fixedly connected to a transmission beam 24, one end of the transmission beam 24 away from the rotating cylinder 22 is rotatably connected to a matching base 23, a group of mounting bases 21 and matching bases 23 are respectively fixedly arranged on both sides of the exposure platform 1, the transmission beam 24 is fixedly connected to a mounting beam 25, and a plurality of pressing plates 26 are arranged on the mounting beam 25 at equal intervals. When the PCB needs to be pressed and positioned, the rotating cylinder 22 drives the transmission beam 24 and the mounting beam 25 to rotate at a fixed angle, so that the pressing plate 26 squeezes and positions the PCB.

[0024] Reference Figure 3As shown, in this embodiment, the clamping plate 26 is symmetrically and slidably arranged with connecting members 27, the connecting members 27 are fixedly connected to the mounting beam 25, and an elastic member 28 is sleeved outside the connecting member 27 and located between the clamping plate 26 and the mounting beam 25. By providing the elastic member 28, the clamping plate 26 can have a certain movement space when clamping and positioning the PCB board, thereby enabling the clamping plate 26 to adapt to the clamping and positioning of PCB boards of different thicknesses. At the same time, by controlling the depth of the connecting member 27 installed on the mounting beam 25, the elastic force of the elastic member 28 on the clamping plate 26 is adjusted, thereby ensuring the stability of the clamping plate 26 in clamping and positioning the PCB board.

[0025] Reference Figure 3 As shown, in this embodiment, the connecting member 27 is a polished bolt, which is threadedly connected to the mounting beam 25. By setting the polished bolt, it is convenient to control the screwing depth of the polished bolt on the mounting beam 25 on a daily basis, thereby tightening or loosening the elastic member, facilitating the daily adjustment of the extrusion force of the clamping plate 26 and improving the working efficiency.

[0026] Reference Figure 2 As shown, in this embodiment, the lower end surface of the exposure platform 1 is symmetrically provided with a linear module 5, and the linear module 5 is transmission-connected with a mobile frame 3, and the mobile frame 3 is fixedly connected with a set of mounting bases 21 and a matching base 23. In the daily exposure process, the linear module 5 can be controlled to drive the mobile frame 3 to move, so that a set of clamping plates 26 can move along the length direction of the exposure platform 1, and then the rotating cylinder 22 can be controlled again to drive the clamping plates 26 to clamp and fix the PCB board at the required position. The overall adjustment efficiency is high, and there is no need to stop the machine for adjustment, which is conducive to improving the overall processing efficiency.

[0027] In this embodiment, the lower end surface of the exposure platform 1 is located at one end of a linear module 5 and is transmission-connected to a driving motor 4 , and the output shaft end of the driving motor 4 drives another linear module 5 to move synchronously through a synchronous shaft 6 .

[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 the 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 double-sided pressing plate mechanism of an exposure machine, comprising an exposure platform and two sets of pressing plate assemblies for pressing and positioning a PCB on the exposure platform, characterized in that: A group of the pressure plate assemblies are fixedly arranged on the exposure platform, and a group of the pressure plate assemblies can press and position the PCB board at different positions along the length direction of the exposure platform; the pressure plate assembly includes a pressing plate, and when the PCB board is pressed and positioned, the pressing plate elastically presses the PCB board.

2. The double-side pressing plate mechanism of an exposure machine according to claim 1, characterized in that: The pressure plate assembly includes a rotating cylinder, one side of the rotating cylinder is fixedly connected to a mounting base, the piston end of the rotating cylinder is fixedly connected to a transmission beam, the end of the transmission beam away from the rotating cylinder is rotatably connected to a matching base, a group of the mounting base and the matching base are respectively fixedly arranged on both sides of the exposure platform, the transmission beam is fixedly connected to a mounting beam, and a plurality of the pressure plates are arranged on the mounting beam at equal intervals.

3. The double-side pressing plate mechanism of an exposure machine according to claim 2, characterized in that: Connecting pieces are symmetrically and slidably arranged on the clamping plate, the connecting pieces are fixedly connected to the mounting beam, and an elastic piece is sleeved on the outside of the connecting piece and located between the clamping plate and the mounting beam.

4. The double-side pressing plate mechanism of an exposure machine according to claim 3, characterized in that: The connecting piece is a polished bolt, and the polished bolt is threadedly connected to the mounting beam.

5. The double-side pressing plate mechanism of an exposure machine according to any one of claims 2 to 4, characterized in that: A linear module is symmetrically arranged on the lower end surface of the exposure platform, a moving frame is transmission-connected to the linear module, and the moving frame is fixedly connected to a group of the mounting base and the matching base.

6. The double-side pressing plate mechanism of an exposure machine according to claim 5, characterized in that: The lower end surface of the exposure platform is located at one end of one of the linear modules and is transmission-connected to a driving motor, and the output shaft end of the driving motor drives another linear module to move synchronously through a synchronous shaft.

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