Circuit board solder mask semi-automatic exposure machine

Abstract

The utility model discloses a circuit board solder mask semi-automatic exposure machine, which comprises an exposure machine main body and is characterized by further comprising an exposure tank, the exposure tank is arranged at the top end in the exposure machine main body, a placing table is arranged in the exposure tank, and a circuit board main body is placed on the top surface of the placing table; the lifting mechanism is arranged at the bottom end in the exposure machine main body, the lifting mechanism comprises a driving chamber and a driving shaft, the driving shaft is arranged at the central position in the driving chamber, and the top end of the driving shaft is connected with the bottom of the placing table; the cover body is arranged at the top of the exposure tank, and ultraviolet lamp tubes are uniformly distributed at the bottom end in the cover body. By installing the exposure machine main body, the exposure tank, the placing table, the circuit board main body and the lifting mechanism, the circuit board main body is convenient to place and take out, a worker does not need to stretch the hand into the exposure tank, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board solder mask exposure machines, in particular to a circuit board solder mask semi-automatic exposure machine. Background Art

[0002] A circuit board is a substrate used to connect and support electronic components, with conductive circuits and electronic component mounting locations printed on it. It is an indispensable component of electronic equipment, carrying signal transmission and power supply between electronic components.

[0003] The solder mask of the circuit board refers to brushing solder mask ink on its surface, and then exposing it to ultraviolet light in an exposure machine, causing the solder mask ink to change under the light, thereby forming a protective film in a specific area to protect the circuit from oxidation. A general exposure machine requires the circuit board to be placed in an exposure slot, and the exposure slot is deep, so the staff needs to put their hands in to place the circuit board, which is dangerous. Utility Model Content

[0004] The purpose of the utility model is to provide a semi-automatic exposure machine for solder mask of circuit board to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a circuit board solder mask semi-automatic exposure machine, comprising: an exposure machine body, characterized in that it also includes

[0006] An exposure tank, wherein the exposure tank is arranged at the top of the exposure machine body, and a placement table is arranged inside the exposure tank, and a circuit board body is placed on the top surface of the placement table;

[0007] A lifting mechanism, the lifting mechanism is arranged at the bottom end of the exposure machine body, and the lifting mechanism includes a driving chamber and a driving shaft, the driving shaft is arranged at a central position inside the driving chamber, and the top end of the driving shaft is connected to the bottom of the placement table;

[0008] The lifting mechanism further comprises a cylinder, a guide block and a guide wheel, wherein the cylinder is arranged at one side of the driving chamber, and the output end of the cylinder is provided with a guide block through a telescopic rod, and the bottom of the driving shaft is provided with a guide wheel;

[0009] The cover body is arranged on the top of the exposure tank, and ultraviolet lamp tubes are evenly distributed on the bottom end of the cover body.

[0010] Preferably, a bracket is provided at one end of the top of the exposure machine body, and a lead screw is provided inside the bracket, a driving block is sleeved on the lead screw, and one end of the driving block is connected to the cover body.

[0011] Preferably, positioning posts are provided at the four corners of the bottom of the cover body, and positioning grooves matching the positioning posts are provided at the four corners of the top of the exposure slot.

[0012] Preferably, the lifting mechanism further comprises a shaft sleeve and a spring sleeve, wherein the shaft sleeve is arranged at the top end of the driving chamber, the driving shaft passes through the shaft sleeve and extends into the exposure slot, and a spring sleeve is sleeved on the driving shaft below the shaft sleeve.

[0013] Preferably, the lifting mechanism further comprises a guide rail, and the guide rail is arranged at the bottom end inside the driving chamber, and the bottom of the guide block is slidably connected to the guide rail via a guide groove.

[0014] Preferably, a servo motor is fixed to the top of the bracket, and an output end of the servo motor is connected to the lead screw.

[0015] Preferably, sealing grooves are provided around the top of the exposure groove, and sealing strips matching the sealing grooves are provided around the bottom of the cover body.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: the circuit board solder mask semi-automatic exposure machine is equipped with an exposure machine body, an exposure slot, a placement table, a circuit board body, a lifting mechanism, a drive chamber, a guide block, a cylinder, a guide rail, a guide wheel, a spring sleeve, a shaft sleeve and a drive shaft. When the circuit board body needs to be placed, the cylinder pushes the guide block to slide along the guide rail, and the top surface of the guide block is an arc-shaped structure. When the guide block moves, it pushes the guide wheel to move upward, so that the drive shaft moves upward and the placement table is raised, so that the placement table extends to the outside of the exposure slot, which is convenient for placing the circuit board body to be exposed, and there is no need for workers to put their hands into the exposure slot, thereby improving safety. After placing the circuit board body, the cylinder drives the guide block to reset through the telescopic rod, and the drive shaft moves downward under the rebound action of the spring sleeve, so that the placement table and the circuit board body are lowered into the exposure slot for subsequent solder mask exposure work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0018] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0019] Figure 3 It is a schematic diagram of the top view structure of the exposure tank of the utility model;

[0020] Figure 4 It is a bottom view of the structure of the cover body of the present invention.

[0021] In the figure: 1. Exposure machine body; 2. Placement table; 3. Circuit board body; 4. Cover; 5. Positioning groove; 6. Lifting mechanism; 601. Drive chamber; 602. Guide block; 603. Cylinder; 604. Guide rail; 605. Guide wheel; 606. Spring sleeve; 607. Bushing; 608. Drive shaft; 7. Bracket; 8. Screw; 9. Drive block; 10. Servo motor; 11. Exposure slot; 12. Sealing slot; 13. Positioning column; 14. Sealing strip; 15. Ultraviolet lamp. DETAILED DESCRIPTION

[0022] 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. 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.

[0023] See also Figure 1-4 The utility model provides an embodiment: a circuit board solder mask semi-automatic exposure machine, comprising: an exposure machine body 1, and also comprising

[0024] An exposure tank 11, which is arranged at the top of the exposure machine body 1, and a placement table 2 is arranged inside the exposure tank 11, and a circuit board body 3 is placed on the top surface of the placement table 2;

[0025] The lifting mechanism 6 is arranged at the bottom end of the exposure machine body 1, and the lifting mechanism 6 includes a driving chamber 601 and a driving shaft 608. The driving shaft 608 is arranged at the central position of the driving chamber 601, and the top end of the driving shaft 608 is connected to the bottom of the placement table 2;

[0026] The lifting mechanism 6 further includes a cylinder 603, a guide block 602 and a guide wheel 605, and the cylinder 603 is arranged at one side of the driving chamber 601, and the output end of the cylinder 603 is provided with a guide block 602 through a telescopic rod, and the bottom of the driving shaft 608 is provided with a guide wheel 605;

[0027] The lifting mechanism 6 further includes a shaft sleeve 607 and a spring sleeve 606. The shaft sleeve 607 is disposed at the top of the driving chamber 601. The driving shaft 608 passes through the shaft sleeve 607 and extends into the exposure tank 11. The spring sleeve 606 is sleeved on the driving shaft 608 below the shaft sleeve 607.

[0028] The lifting mechanism 6 further includes a guide rail 604, and the guide rail 604 is arranged at the bottom end of the driving chamber 601, and the bottom of the guide block 602 is slidably connected to the guide rail 604 through a guide groove;

[0029] The cylinder 603 pushes the guide block 602 to slide along the guide rail 604. The top surface of the guide block 602 is an arc-shaped structure. When the guide block 602 moves, it pushes the guide wheel 605 to move upward, so that the driving shaft 608 moves upward to raise the placement table 2, so that the placement table 2 extends to the outside of the exposure tank 11;

[0030] Then, the circuit board body 3 coated with solder resist ink is placed on the placement table 2, and the worker does not need to put his hand into the exposure tank 11, which improves safety;

[0031] After placing the circuit board body 3, the cylinder 603 drives the guide block 602 to reset through the telescopic rod, and the driving shaft 608 moves downward under the rebound effect of the spring sleeve 606, so that the placement table 2 and the circuit board body 3 are lowered into the exposure slot 11;

[0032] A cover body 4, which is disposed on the top of the exposure tank 11, and ultraviolet lamp tubes 15 are evenly distributed at the bottom of the cover body 4;

[0033] A bracket 7 is provided at one end of the top of the exposure machine body 1, and a screw rod 8 is provided inside the bracket 7. A driving block 9 is sleeved on the screw rod 8, and one end of the driving block 9 is connected to the cover body 4;

[0034] A servo motor 10 is fixed to the top of the bracket 7, and the output end of the servo motor 10 is connected to the screw rod 8;

[0035] The servo motor 10 drives the screw rod 8 to rotate, so that the driving block 9 moves down along the screw rod 8 to connect the cover body 4 with the exposure slot 11. There is no need to open and close the cover manually. The worker only needs to manually place and take out the circuit board body 3, thereby realizing the semi-automation of the exposure machine body 1 and improving the work efficiency.

[0036] The four corners at the bottom of the cover body 4 are provided with positioning posts 13, and the four corners at the top of the exposure slot 11 are provided with positioning slots 5 matching the positioning posts 13;

[0037] The top of the exposure slot 11 is provided with a sealing slot 12 on all sides, and the bottom of the cover body 4 is provided with a sealing strip 14 matching the sealing slot 12 on all sides.

[0038] When the cover body 4 is connected to the exposure slot 11, the positioning column 13 is inserted into the positioning slot 5 for positioning, and the sealing strip 14 is embedded in the sealing slot 12, so as to improve the sealing performance of the connection between the cover body 4 and the exposure slot 11, and light leakage is not likely to occur;

[0039] The specific models and specifications of the cylinder 603, the servo motor 10 and the ultraviolet lamp 15 need to be determined by selection calculation based on the specification parameters of the device. The selection calculation method is existing technology, so it will not be described in detail.

[0040] Working principle: When the embodiment of the present application is in use, the cylinder 603 first pushes the guide block 602 to slide along the guide rail 604. The top surface of the guide block 602 is an arc-shaped structure. When the guide block 602 moves, it pushes the guide wheel 605 to move up, so that the drive shaft 608 moves up, thereby raising the placement table 2, so that the placement table 2 extends to the outside of the exposure tank 11, and then the circuit board body 3 coated with solder mask ink is placed on the placement table 2, without the need for workers to put their hands into the exposure tank 11, thereby improving safety. After placing the circuit board body 3, the cylinder 603 drives the guide block 602 to reset through the telescopic rod, and the drive shaft 608 moves down under the rebound action of the spring sleeve 606, so that the placement table 2 and the circuit board body 3 are lowered into the exposure slot 11, and then the servo motor 10 drives the screw rod 8 to rotate, so that the driving block 9 moves down along the screw rod 8 to connect the cover body 4 with the exposure slot 11. When connected, the positioning column 13 and the positioning slot 5 are inserted and positioned, and at the same time, the sealing strip 14 is embedded in the sealing slot 12 to improve the sealing of the connection between the cover body 4 and the exposure slot 11, and it is not easy to leak light. Then the ultraviolet lamp tube 15 is turned on to irradiate the circuit board body 3, so that the solder mask ink on its surface is cured to form a protective film. There is no need to open and close the cover manually. The worker only needs to manually place and take out the circuit board body 3, so as to realize the semi-automation of the exposure machine body 1 and improve the work efficiency.

[0041] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0042] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0043] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A semi-automatic exposure machine for solder mask of circuit board, comprising: The exposure machine body (1) is characterized by comprising: An exposure tank (11), the exposure tank (11) being arranged at the top end of an exposure machine body (1), and a placement table (2) being arranged inside the exposure tank (11), and a circuit board body (3) being placed on the top surface of the placement table (2); A lifting mechanism (6), the lifting mechanism (6) is arranged at the bottom end of the exposure machine body (1), and the lifting mechanism (6) comprises a driving chamber (601) and a driving shaft (608), the driving shaft (608) is arranged at a central position inside the driving chamber (601), and the top end of the driving shaft (608) is connected to the bottom of the placement table (2); The lifting mechanism (6) further comprises a cylinder (603), a guide block (602) and a guide wheel (605), wherein the cylinder (603) is arranged at one side inside the driving chamber (601), and the output end of the cylinder (603) is provided with a guide block (602) via a telescopic rod, and the bottom of the driving shaft (608) is provided with a guide wheel (605); A cover body (4) is arranged on the top of the exposure tank (11), and ultraviolet lamp tubes (15) are evenly distributed at the bottom of the cover body (4).

2. A circuit board solder mask semi-automatic exposure machine according to claim 1, characterized in that: A bracket (7) is provided at one end of the top of the exposure machine body (1), and a lead screw (8) is provided inside the bracket (7). A driving block (9) is sleeved on the lead screw (8), and one end of the driving block (9) is connected to the cover body (4).

3. A circuit board solder mask semi-automatic exposure machine according to claim 1, characterized in that: Positioning posts (13) are arranged at the four corners of the bottom of the cover body (4), and positioning slots (5) matching the positioning posts (13) are arranged at the four corners of the top of the exposure slot (11).

4. A circuit board solder mask semi-automatic exposure machine according to claim 1, characterized in that: The lifting mechanism (6) further comprises a shaft sleeve (607) and a spring sleeve (606), wherein the shaft sleeve (607) is arranged at the top end inside the driving chamber (601), the driving shaft (608) passes through the shaft sleeve (607) and extends into the exposure slot (11), and the spring sleeve (606) is sleeved on the driving shaft (608) below the shaft sleeve (607).

5. A circuit board solder mask semi-automatic exposure machine according to claim 1, characterized in that: The lifting mechanism (6) further comprises a guide rail (604), and the guide rail (604) is arranged at the bottom end inside the driving chamber (601), and the bottom of the guide block (602) is slidably connected to the guide rail (604) via a guide groove.

6. A circuit board solder mask semi-automatic exposure machine according to claim 2, characterized in that: A servo motor (10) is fixed on the top of the bracket (7), and the output end of the servo motor (10) is connected to the screw rod (8).

7. A circuit board solder mask semi-automatic exposure machine according to claim 1, characterized in that: The top of the exposure slot (11) is provided with sealing slots (12) on all sides, and the bottom of the cover body (4) is provided with sealing strips (14) matching the sealing slots (12) on all sides.

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