A PCB circuit board production line

Abstract

The application belongs to the technical field of circuit board preparation, in particular to a PCB circuit board production line, which comprises a cutting machine for cutting and opening fixed holes of an insulating substrate, a copper deposition tank for depositing a conductive layer on the surface of the substrate, a film laminating machine for laminating a film on the substrate and using a solution to produce a circuit pattern on the substrate, an electroplating device for tinning the copper foil of the substrate to prevent damage during etching, a tin stripping machine for cleaning and removing the protective tin on the surface of the substrate, a screen printing device for screen printing text on the PCB, and a rack for loading and transferring the PCB circuit board during processing. The rack can maintain better balance during transfer and will not have the problem of "head heavy and foot light". In addition, the distance between the moving plate and the moving plate and the distance between the moving plate and the fixed plate can be adjusted by the bidirectional screw rod, so that PCB circuit boards of various thicknesses can be loaded and transferred, improving the applicability of the device.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of circuit board preparation, and particularly relates to a PCB circuit board production line. BACKGROUND

[0002] The PCB circuit board generally refers to a printed circuit board, which is a provider of electrical connection of electronic components, and is usually made of an insulating plate as a base material, which is cut into fixed use sizes, and at least one conductive pattern on the base material is used to replace the bottom disc of the previous device electronic component and realize the mutual connection between the electronic components.

[0003] At present, the preparation process of the PCB circuit board is as follows: cutting, drilling, copper plating, dry film, exposure, development etching, film removal, AOI detection, solder mask, text, surface treatment, forming and flying probe test, etc. When the PCB board is silk-screen printed, a shelf is usually used for transfer work, the shelf is welded by a plurality of equidistantly arranged isolation plates, in use, the PCB board is inserted into the gap between the isolation plates, and then the shelf is taken away after the shelf is full.

[0004] When the shelf in the prior art is used to load the PCB circuit board, the PCB board needs to be aligned with the gap between the isolation plates and inserted into the inside. However, in order to ensure the loading stability of the shelf for the PCB board, the distance between the isolation plates should be as same as the thickness of the PCB circuit board as much as possible. When the distance between the isolation plates is too close, the PCB circuit board is easily damaged when being inserted. When the distance between the isolation plates is too far, the PCB circuit board is easily shaken during the transfer process, and is damaged by the shaking. SUMMARY

[0005] In order to solve the problem that the PCB board needs to be aligned with the gap between the isolation plates and inserted into the inside when the shelf in the prior art is used to load the PCB circuit board, and in order to ensure the loading stability of the shelf for the PCB board, the distance between the isolation plates should be as same as the thickness of the PCB circuit board as much as possible, which leads to that the PCB circuit board is easily damaged when being inserted when the distance between the isolation plates is too close, and the PCB circuit board is easily shaken during the transfer process when the distance between the isolation plates is too far, and the PCB circuit board is damaged by the shaking, the application provides a PCB circuit board production line.

[0006] The technical scheme adopted by the application to solve the technical problem is that the application provides a PCB circuit board production line, which comprises:

[0007] A cutting machine is used to cut and open fixed holes in the insulating base plate.

[0008] A copper deposition tank is used to deposit a conductive layer on the surface of the base plate.

[0009] A coating machine is used to coat substrates with a film and to create circuit patterns on the substrate using a solution.

[0010] Electroplating equipment is used to tin-plate the copper foil of a substrate to prevent accidental damage during etching.

[0011] A desoldering machine is used to clean and remove the protective tin from the surface of a substrate.

[0012] Screen printing equipment is used to screen print text on PCB boards;

[0013] Shelves are used for loading and transferring PCB circuit boards during the processing.

[0014] It also includes a first I-beam symmetrically arranged on the shelf; each of the first I-beams has a slide groove; a fixed plate is fixedly connected to the center of each slide groove; multiple movable plates are slidably connected to each side of the fixed plate in the slide groove; a first spring is fixedly connected between each movable plate, and the movable plate and the fixed plate are fixedly connected by the first spring; an adjustment component is fixedly connected to each of the outermost movable plates, and the adjustment component includes a two-way lead screw.

[0015] Preferably, the adjustment assembly includes a fixed block fixedly connected to the outermost movable plate; each of the fixed blocks is threadedly connected to a bidirectional lead screw, and the middle part of the bidirectional lead screw is rotatably connected to the fixed plate; each end of the bidirectional lead screw is fixedly connected to an adjustment handwheel.

[0016] Preferably, the first I-beam has limit grooves on both its upper and lower surfaces; the movable plate is fixedly connected with protrusions at positions corresponding to the limit grooves, and the protrusions are slidably connected inside the limit grooves.

[0017] Preferably, two telescopic connecting rods are provided between the first I-beams, and the telescopic connecting rods are located at both ends of the first I-beams; the telescopic connecting rods are provided with fixing parts, and the fixing parts are used to adjust the telescopic length of the telescopic connecting rods; both ends of the telescopic connecting rods are fixedly connected with fixing plates, and the fixing plates are fixedly connected to the corresponding first I-beams by screws.

[0018] Preferably, a second I-beam is fixedly connected to the bottom of each of the first I-beams; a guide rod is fixedly connected to both ends of each of the second I-beams; a pad is slidably connected to the guide rod; and a plurality of equidistant second springs are fixedly connected to the bottom of each pad, with the lower ends of each second spring fixedly connected to the second I-beam.

[0019] Preferably, a scale is provided on the upper surface of the first I-beam plate, and the scale is used to assist in adjusting the position of the moving plate.

[0020] Preferably, a hand grip bar is fixed to the outer side of the first I-beam.

[0021] Preferably, the edges of the moving plate and the fixed plate are smooth curved surfaces.

[0022] The present application has the following advantages:

[0023] 1. The present application provides a PCB circuit board production line, first, according to the PCB circuit board to be transferred, the adjusting assembly is adjusted, the moving plate is driven to the fixed plate by manually rotating the bidirectional screw, and enough distance is reserved to ensure that the inserted PCB circuit board will not be damaged due to local friction caused by being too tight, after all the PCB circuit boards are inserted, the moving plate and the moving plate are moved again by manually rotating the bidirectional screw, the distance between the moving plate and the fixed plate is reduced, and the PCB circuit board is further clamped, which will not be damaged due to local friction between the PCB circuit board and the moving plate and the fixed plate caused by bumping during transfer, during this process, the outermost two moving plates are simultaneously moved towards the fixed plate, all the moving plates move the same distance, the fixing effect on the PCB circuit board is realized, and all the moving plates are moved towards the moving plate, which balances the stress on both ends of the first I-beam, and better balance can be maintained during transfer, and the situation of "head heavy and foot light" will not occur; in addition, the distance between the moving plate and the moving plate and the distance between the moving plate and the fixed plate are adjusted by the bidirectional screw, which can load and transfer PCB circuit boards of various thicknesses, and the applicability of the equipment is improved.

[0024] 2. The present application provides a PCB circuit board production line, by manually rotating the adjusting hand wheel, the corresponding bidirectional screw is rotated, when the bidirectional screw is rotated, the outermost two moving plates are simultaneously moved towards the middle fixed plate, under the action of the spring, all the moving plates are subjected to the same force, synchronous horizontal movement occurs, the distance between the moving plate and the moving plate, and the distance between the moving plate and the fixed plate are always kept the same size, and the purpose of adjusting the distance between them is achieved, and the purpose of loading and transferring PCB circuit boards of various specifications is achieved.

[0025] 3. The present application provides a PCB circuit board production line, by manually rotating the adjusting hand wheel, the corresponding bidirectional screw is rotated, when the bidirectional screw is rotated, the outermost two moving plates are simultaneously moved towards the middle fixed plate, under the action of the spring, all the moving plates are subjected to the same force, synchronous horizontal movement occurs, the distance between the moving plate and the moving plate, and the distance between the moving plate and the fixed plate are always kept the same size, and the purpose of adjusting the distance between them is achieved, and the purpose of loading and transferring PCB circuit boards of various specifications is achieved.

[0026] 4. The PCB circuit board production line is capable of loosening the fixing part through simultaneous rotation, loosening the telescopic adjusting rod, then adjusting the length of the telescopic adjusting rod according to the PCB circuit board, and fixing the length of the telescopic adjusting rod again after the length is adjusted to the required length, so that the purpose of loading and transferring the PCB circuit boards of various sizes is achieved, and the versatility of the loading and transferring equipment is further improved under the cooperation of the adjusting assembly. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application. In the drawings:

[0028] Figure 1 is a perspective view of the application;

[0029] Figure 2 is a partial enlarged view of A; Figure 1

[0030] Figure 3 is a top view of the application;

[0031] Figure 4 is an exploded view of the adjusting assembly structure of the application;

[0032] Figure 5 is a perspective view of the base plate structure of the application;

[0033] Figure 6 is a perspective view of the telescopic adjusting rod structure of the application;

[0034] Figure 7 is a perspective view of the moving plate structure of the application;

[0035] LEGEND

[0036] 1, first I-shaped plate; 2, sliding groove; 21, protrusion; 22, limiting groove; 3, fixed plate; 4, moving plate; 5, fixed block; 6, first spring; 7, bidirectional screw rod; 8, adjusting hand wheel; 9, telescopic connecting rod; 10, fixed piece; 11, fixing part; 12, second I-shaped plate; 13, guide rod; 14, base plate; 15, second spring; 16, hand holding rod; 17, scale. DETAILED DESCRIPTION

[0037] ​With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0038] Please refer to Figure 1 Figure 7 The present application provides a PCB circuit board production line, comprising:

[0039] A cutting machine is used for cutting and opening fixed holes on the insulating substrate;

[0040] A copper deposition tank is used for depositing a conductive layer on the surface of the substrate;

[0041] A laminating machine is used for laminating the substrate and making a circuit pattern on the substrate by using a solution;

[0042] A plating device is used for plating tin on the copper foil of the substrate to prevent damage during etching;

[0043] A tin stripping machine is used for cleaning and removing the protective tin on the surface of the substrate;

[0044] A silk-screen device is used for silk-screening text on the PCB;

[0045] A shelf is used for loading and transferring the PCB circuit board during processing;

[0046] ​The system also includes first I-beams 1 symmetrically arranged on the shelf; each of the first I-beams 1 has a sliding groove 2; a fixed plate 3 is fixedly connected to the center of each sliding groove 2; multiple movable plates 4 are slidably connected to each side of the fixed plate 3 within each sliding groove 2; a first spring 6 is fixedly connected between each movable plate 4, and each movable plate 4 is fixedly connected to the fixed plate 3 via the first spring 6; an adjustment assembly is fixedly connected to each of the outermost movable plates 4, and the adjustment assembly includes a bidirectional lead screw 7. To prevent damage to the PCB circuit board during transport, the adjustment assembly is first adjusted according to the PCB circuit board to be transported. By manually rotating the bidirectional lead screw 7, the movable plates 4 are moved closer to the fixed plate 3, leaving sufficient distance to ensure that the inserted PCB circuit board will not be damaged due to excessive tightness and local friction. After the PCB circuit board is fully inserted, the bidirectional lead screw 7 is manually rotated again to reduce the distance between the movable plates 4 and between the movable plates 4 and the fixed plate 3, thereby maintaining the clamping of the PCB circuit board and preventing damage due to bumps during transport. Friction between the circuit board and the moving plate 4 and the fixed plate 3 causes local damage. During this process, the two outermost moving plates 4 move towards the fixed plate 3 at the same time, and all moving plates 4 move the same distance to fix the PCB circuit board. At the same time, all moving plates 4 move towards the moving plate 4, which balances the force on both ends of the first I-beam 1. It can maintain better balance during transportation and will not be "top-heavy". In addition, the distance between moving plates 4 and between moving plates 4 and fixed plate 3 can be adjusted by the bidirectional lead screw 7, which can load and transport PCB circuit boards of various thicknesses, improving the applicability of the equipment.

[0047] Furthermore, such as Figure 2 and Figure 4 As shown, the adjustment assembly includes fixed blocks 5 fixed to the outermost movable plate 4; each fixed block 5 is threaded with a bidirectional lead screw 7, and the middle of the bidirectional lead screw 7 is rotatably connected to the fixed plate 3; each end of the bidirectional lead screw 7 is fixed with an adjustment handwheel 8. To achieve the effect of adjusting the distance between movable plates 4 and between movable plates 4 and the fixed plate 3, in actual operation, the adjustment handwheel 8 is manually rotated, which in turn rotates the corresponding bidirectional lead screw 7. When the bidirectional lead screw 7 rotates, it drives the two outermost movable plates 4 to move synchronously towards the middle fixed plate 3. Under the action of the spring, all movable plates 4 are subjected to equal force and move horizontally synchronously, thereby maintaining the same distance between movable plates 4 and between movable plates 4 and the fixed plate 3, and achieving the purpose of adjusting the distance between them, thus realizing the loading and transportation of PCB circuit boards of various specifications.

[0048] Furthermore, such as Figure 4 andFigure 7 As shown in the figure, the first I-shaped plate 1 is provided with a limiting groove 22 on both upper and lower surfaces; the mobile plate 4 is provided with a protrusion 21 corresponding to the position of the limiting groove 22, and the protrusion 21 is slidingly connected inside the limiting groove 22. In order to realize the stable sliding effect of the mobile plate 4, during the specific operation, the mobile plate 4 is preliminarily positioned by the sliding groove 2, so that the mobile plate 4 moves along the fixed track, and then the position of the mobile plate 4 is further positioned by the cooperation of the protrusion 21 and the limiting groove 22, so as to avoid the mobile plate 4 from falling off and causing damage to the mobile plate 4 during use, thereby improving the stability of the transfer equipment.

[0049] Further, as shown in the figure, Figure 6 As shown in the figure, the first I-shaped plate 1 is provided with two telescopic connecting rods 9, and the telescopic connecting rods 9 are located at both ends of the first I-shaped plate 1; the telescopic connecting rod 9 is provided with a fixing part 11, and the fixing part 11 is used for adjusting the telescopic length of the telescopic connecting rod 9; the both ends of the telescopic connecting rod 9 are fixedly connected with a fixing sheet 10, and the fixing sheet 10 is fixedly connected with the corresponding first I-shaped plate 1 by screws. In order to realize the effect of adjusting the distance between the first I-shaped plates 1 and adapting to PCB circuit boards of different sizes, during the specific operation, the fixing part 11 is loosened by rotating at the same time, so that the telescopic adjusting rod is loosened, and then the length of the telescopic adjusting rod is adjusted according to the PCB circuit board, and when the length required is reached, the length of the telescopic adjusting rod is fixed by rotating the adjusting part again, thereby improving the purpose of loading and transferring PCB circuit boards of different sizes, and further increasing the versatility of the loading and transferring equipment under the cooperation of the adjusting assembly.

[0050] Further, as shown in the figure, Figure 5 As shown in the figure, the first I-shaped plate 1 is provided with a second I-shaped plate 12 at the bottom; the both ends of the second I-shaped plate 12 are fixedly connected with a guide rod 13; the guide rod 13 is slidingly connected with a pad 14; the bottom of the pad 14 is fixedly connected with a plurality of equidistantly arranged second springs 15, and the lower ends of the second springs 15 are fixedly connected with the second I-shaped plate 12. In order to avoid the hard direct contact between the bottom of the PCB circuit board and the bottom of the equipment when the PCB circuit board is inserted, which causes local damage to the bottom of the PCB circuit board, when the PCB circuit board is inserted, the bottom of the PCB circuit board directly contacts with the pad 14, and the pad 14 slightly moves under the action of the second spring 15 when stressed, so that the pad 14 does not directly contact with the PCB circuit board, which avoids local damage. The position of the pad 14 can be positioned by the cooperation of the second I-shaped plate 12 and the guide rod 13, and the pad 14 slightly moves vertically on the guide rod 13 when stressed, so that the pad 14 is uniformly stressed and does not occur lateral inclination.

[0051] Further, as shown in the figure, Figure 7As shown, the first I-beam 1 upper surface is provided with a scale 17, and the scale 17 is used to assist in adjusting the position of the moving plate 4. In order to realize the human rotation of the two adjusting hand wheels 8, the moving plate 4 located on the two first I-beams 1 can be moved by the same distance, so that the loading effect is better. In the specific operation, first, one of the adjusting hand wheels 8 is rotated, and then the moving distance of the moving plate 4 corresponding to the adjusting hand wheel 8 is marked according to the scale 17. According to the reading of the mark, the other moving adjusting hand wheel 8 is rotated to realize the adjustment of the two moving plates 4 to the same distance.

[0052] Further, as shown in the figure, Figure 7 As shown, the first I-beam 1 outside is fixed with a hand rod 16.

[0053] Further, as shown in the figure, Figure 3 As shown, the moving plate 4 and the corner of the fixed plate 3 are smooth curved surfaces. By setting the corner of the moving plate 4 and the fixed plate 3 as a smooth curved surface, when the moving plate 4 is loaded, the PCB circuit board will not be scratched between the moving plate 4 and the fixed plate 3, which will cause product damage and reduce product yield.

[0054] Working principle:

[0055] First, adjust the adjusting assembly according to the PCB circuit board to be transported. The moving plate 4 is driven by the human rotation of the double screw rod 7 to approach the fixed plate 3, and enough distance is reserved to ensure that the PCB circuit board will not be damaged due to local friction caused by being too tight. After all the PCB circuit boards are inserted, the moving plate 4 is again driven by the human rotation of the double screw rod 7 to make the distance between the moving plate 4 and the moving plate 4 and the distance between the moving plate 4 and the fixed plate 3 smaller, thereby realizing the continued clamping of the PCB circuit board. The PCB circuit board will not be damaged due to friction between the moving plate 4 and the fixed plate 3 caused by jolting during transportation. In this process, since the two outermost moving plates 4 approach the fixed plate 3 at the same time, all the moving plates 4 move the same distance, realizing the fixing effect on the PCB circuit board. At the same time, all the moving plates 4 approach the moving plate 4, balancing the stress on both ends of the first I-beam 1, which can maintain better balance during transportation and will not occur "head heavy feet light". In addition, by adjusting the distance between the moving plate 4 and the moving plate 4 and the distance between the moving plate 4 and the fixed plate 3 through the double screw rod 7, PCB circuit boards of various thicknesses can be loaded and transported, improving the applicability of the equipment.

[0056] By manually rotating the adjusting hand wheel 8, the corresponding bidirectional screw rod 7 is rotated, when the bidirectional screw rod 7 rotates, the two outermost moving plates 4 are driven to move synchronously towards the middle fixed plate 3, under the action of the spring, all the moving plates 4 are subjected to equal force, synchronous horizontal movement occurs, the distance between the moving plates 4 and the distance between the moving plates 4 and the fixed plate 3 always remain the same size, and the purpose of adjusting the distance between them is achieved, realizing the purpose of loading and transferring PCB circuit boards of various specifications.

[0057] By manually rotating the adjusting hand wheel 8, the corresponding bidirectional screw rod 7 is rotated, when the bidirectional screw rod 7 rotates, the two outermost moving plates 4 are driven to move synchronously towards the middle fixed plate 3, under the action of the spring, all the moving plates 4 are subjected to equal force, synchronous horizontal movement occurs, the distance between the moving plates 4 and the distance between the moving plates 4 and the fixed plate 3 always remain the same size, and the purpose of adjusting the distance between them is achieved, realizing the purpose of loading and transferring PCB circuit boards of various specifications.

[0058] The moving plate 4 is preliminarily position-limited by the chute 2, so that the moving plate 4 moves along a fixed track, and the position of the moving plate 4 is further limited by the cooperation of the protrusion 21 and the limiting groove 22, so as to avoid the moving plate 4 from falling off and causing damage to the moving plate 4 during use, thereby improving the stability of the transfer equipment.

[0059] By simultaneously rotating, the fixed part 11 is loosened, then the length of the telescopic adjusting rod is adjusted according to the PCB circuit board, when the length required is reached, the adjusting part is rotated again, and the length of the telescopic adjusting rod is fixed, thereby improving the purpose of loading and transferring PCB circuit boards of various sizes, and further increasing the versatility of the loading and transferring equipment under the cooperation of the adjusting assembly.

[0060] When the PCB circuit board is inserted, the bottom of the PCB circuit board directly contacts the pad plate 14, and under the action of the second spring 15, the pad plate 14 slightly moves when subjected to force, so that the pad plate 14 does not directly contact the PCB circuit board and cause local damage, the position of the pad plate 14 can be limited by the cooperation of the second I-beam 12 and the guide rod 13, and when the pad plate 14 is subjected to force, the guide rod 13 slightly moves vertically, and the pad plate 14 is subjected to uniform force and does not occur lateral inclination.

[0061] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A PCB circuit board production line, comprising: a cutting machine for cutting and opening a fixed hole on an insulating substrate; a copper plating tank for depositing a conductive layer on the surface of the substrate; a film laminating machine for laminating the substrate and making a circuit pattern on the substrate using a solution; a tin plating device for tin plating the copper foil of the substrate to prevent damage during etching; a tin stripping machine for cleaning and removing the protective tin on the surface of the substrate; a silk screen printing device for silk screen printing text on the PCB board; a rack for loading and transferring the PCB circuit board during processing; characterized in that it further comprises a first I-shaped plate (1) symmetrically arranged on the rack; the first I-shaped plate (1) is provided with a sliding groove (2); the middle part of the sliding groove (2) is fixedly connected with a fixed plate (3); a plurality of movable plates (4) are slidably connected on both sides of the fixed plate (3) in the sliding groove (2); the movable plates (4) are fixedly connected with the first springs (6) between them, and the movable plates (4) and the fixed plate (3) are fixedly connected through the first springs (6); the outermost movable plates (4) are fixedly connected with adjusting assemblies, and the adjusting assemblies comprise bidirectional lead screws (7); the bottom of the first I-shaped plate (1) is fixedly connected with a second I-shaped plate (12); the two ends of the second I-shaped plate (12) are fixedly connected with guide rods (13); the guide rods (13) are slidably connected with base plates (14); the bottom of the base plate (14) is fixedly connected with a plurality of equidistantly arranged second springs (15), and the lower ends of the second springs (15) are fixedly connected with the second I-shaped plate (12).

2. A PCB circuit board production line according to claim 1, characterized in that: The adjusting assembly comprises a fixed block (5) fixedly connected to the outermost movable plate (4); the fixed blocks (5) are threadedly connected with the bidirectional lead screws (7), and the middle parts of the bidirectional lead screws (7) are rotatably connected with the fixed plate (3); the end parts of the bidirectional lead screws (7) are fixedly connected with adjusting handwheels (8).

3. A PCB circuit board production line according to claim 2, characterized in that: The upper and lower surfaces of the first I-shaped plate (1) are provided with limiting grooves (22); the movable plates (4) are fixedly connected with protrusions (21) corresponding to the positions of the limiting grooves (22), and the protrusions (21) are slidably connected in the limiting grooves (22).

4. A PCB circuit board production line according to claim 3, characterized in that: Two telescopic connecting rods (9) are arranged between the first I-shaped plates (1), and the telescopic connecting rods (9) are located at the two ends of the first I-shaped plates (1); the telescopic connecting rods (9) are provided with fixed parts (11) for adjusting the telescopic length of the telescopic connecting rods (9); the two ends of the telescopic connecting rods (9) are fixedly connected with fixed plates (10), and the fixed plates (10) are fixedly connected with the corresponding first I-shaped plates (1) through screws.

5. The PCB circuit board production line of claim 1, wherein: The upper surfaces of the first I-shaped plates (1) are provided with scale rulers (17) for assisting in adjusting the positions of the movable plates (4).

6. A PCB circuit board production line according to claim 5, characterized in that: The outer sides of the first I-shaped plates (1) are fixedly connected with handgrip rods (16).

7. A PCB circuit board production line according to claim 6, characterized in that: The corners of the movable plates (4) and the fixed plate (3) are smooth curved surfaces.

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