Energy-saving and environment-friendly vacuum etching device

Abstract

An energy-saving and environment-friendly vacuum etching device comprises a machining table, an upper frame, a bearing assembly, a vacuum assembly and a spraying etching assembly, a machining groove with an opening in the upper end is formed in the machining table, the upper frame stands on the machining table and is located above the machining groove, the bearing assembly is arranged in the machining groove, and the spraying etching assembly is arranged in the machining groove. The vacuum assembly is arranged on the upper frame and located above the bearing assembly. The spraying and etching assembly is arranged at the lower end of the vacuum assembly. The bearing assembly comprises a motor, a rotating shaft and a bearing plate. According to the utility model, the circuit board in etching processing is driven to rotate by designing the bearing assembly capable of moving and rotating, the water pit effect in the etching process is weakened and even eliminated by centrifugal force generated by the rotation of the circuit board, and compared with the traditional vacuum suction operation, more work is saved, so that the purposes of energy conservation and environmental protection of the etching device are achieved; the utility model has the advantages of strong practicability and strong popularization significance.

Description

Technical Field

[0001] The utility model relates to a circuit board processing device, in particular to an energy-saving and environment-friendly vacuum etching device. Background Art

[0002] Etching is one of the basic processes in the production process of circuit boards. Its main principle is to cover the base copper with an anti-corrosion layer, and the copper that is not protected by the anti-corrosion layer reacts with the etchant and is etched away, eventually forming the designed circuit pattern and pad. The current mainstream etching method is horizontal transmission spray, which can achieve the greatest degree of production automation and reduce costs, but this method will cause the "pool effect". The "pool effect" refers to the phenomenon caused by the accumulation of etchant on the top of the circuit board when spraying the etchant: when the circuit board is placed horizontally, the etching liquid under the board and on the edge of the board is easy to flow away, and the new and old etching liquids are easier to exchange; while the center of the board is prone to form a "pool", the flow of the etching liquid is restricted, and the exchange of the new and old etching liquids is difficult. Therefore, the etching effect of the circuit in the middle of the circuit board will be worse than that of other positions, resulting in uneven etching.

[0003] A common practice is to install a suction unit between the nozzles at a relatively close distance to the circuit board surface. The suction unit creates a negative pressure in the operating area and sucks away the "water pool" produced by the etching liquid through suction. However, in the actual production process, the "water pool" produced by the etching liquid is relatively thick. When the suction force of the suction unit is increased to quickly suck away the "water pool", the power consumption of the suction unit also increases exponentially, greatly increasing the cost burden of the etching process. Utility Model Content

[0004] Based on this, it is necessary to provide an energy-saving and environmentally friendly vacuum etching device to address the deficiencies in the prior art.

[0005] An energy-saving and environmentally friendly vacuum etching device, comprising a processing table, an upper frame, a bearing assembly, a vacuum assembly and a spray etching assembly, wherein the processing table is provided with a processing groove with an upper end opening, the upper frame is erected on the processing table and is located above the processing groove, the bearing assembly is installed in the processing groove, the vacuum assembly is installed on the upper frame and is located above the bearing assembly, and the spray etching assembly is installed at the lower end of the vacuum assembly. The bearing assembly comprises a motor, a rotating shaft and a bearing plate, wherein the motor is installed at the bottom of the processing groove, the lower end of the rotating shaft is connected to the motor power, and the rotating shaft is designed with a movable telescopic structure, the bearing plate is fixedly installed at the upper end of the rotating shaft, and the bearing plate can be driven by the motor and the rotating shaft to rotate.

[0006] Furthermore, a bearing groove and a plurality of overflow openings are provided on the upper surface of the bearing plate. The plurality of overflow openings are respectively provided on four sides of the bearing groove, and two ends of the plurality of overflow openings are respectively connected to the inner side of the bearing groove and the outer side of the bearing plate.

[0007] Furthermore, the bottoms of the plurality of overflow openings are arranged to be inclined downward from the inside to the outside, and the bottom of the bearing groove is also provided with a plurality of overflow holes penetrating upward and downward.

[0008] Furthermore, the vacuum assembly includes a lifting cylinder, a vacuum upper cover and a suction pipe. The upper end of the lifting cylinder is fixedly mounted on the upper frame, the vacuum upper cover is designed as a slot cover structure with an open lower end, which is fixedly mounted on the lower end of the lifting cylinder and can be moved up and down by the lifting cylinder, and the suction pipe is connected to the inner side of the vacuum upper cover.

[0009] Furthermore, a sealing ring is provided on the vacuum upper cover, and the sealing ring is annular and integrally provided on the outer side of the vacuum upper cover.

[0010] Furthermore, the spray etching assembly includes a spray rack and a plurality of spray heads. The spray rack is fixedly mounted on the inner top of the vacuum upper cover, and the plurality of spray heads are sequentially arranged and mounted on the lower end of the spray rack.

[0011] Furthermore, an adjustment slide rail is provided at the lower end of the spray rack, and the plurality of spray heads are mounted on the adjustment slide rail and can slide horizontally, and the spacing between the plurality of spray heads gradually increases from the middle to both sides.

[0012] To sum up, the beneficial effects of the energy-saving and environmentally friendly vacuum etching device of the utility model are: by designing a movable and rotatable carrying component to drive the circuit board in the etching process to rotate, the centrifugal force generated by the rotation of the circuit board is used to weaken or even eliminate the puddle effect in the etching process, which saves more work than the traditional vacuum suction operation, thereby achieving the energy-saving and environmental protection purpose of the etching device; a variety of overflow structures are designed on the carrying plate, which makes it easier to discharge the etching waste liquid from the circuit board and the carrying plate during the etching process, thereby avoiding its adverse effects on the etching effect of the circuit board; the vacuum component is designed to keep the circuit board in a vacuum state during the etching process, which is not only conducive to improving the etching efficiency and effect, but also can effectively prevent the pollution of the circuit board by external dirt; the spray etching component is designed as an adjustable structure design, which can further balance the etching effect of the middle and edge of the circuit board; the utility model is highly practical and has a strong promotion significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of an energy-saving and environmentally friendly vacuum etching device of the utility model;

[0014] Figure 2 for Figure 1 Schematic diagram of the decomposition structure;

[0015] Figure 3 for Figure 2 Schematic diagram of the decomposed structure of the load-bearing components;

[0016] Figure 4 for Figure 2 Schematic diagram of the exploded structure of the vacuum assembly;

[0017] Figure 5 for Figure 2 Schematic diagram of the exploded structure of the spray etching component. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] like Figures 1 to 5 As shown, the utility model provides an energy-saving and environmentally friendly vacuum etching device 100, which includes a processing table 10, an upper frame 20, a supporting component 30, a vacuum component 40 and a spray etching component 50. The processing table 10 is provided with a processing tank 11 with an upper end opening, the upper frame 20 stands on the processing table 10 and is located above the processing tank 11, the supporting component 30 is installed in the processing tank 11, the vacuum component 40 is installed on the upper frame 20 and is located above the supporting component 30, and the spray etching component 50 is installed at the lower end of the vacuum component 40.

[0020] The bearing assembly 30 includes a motor 31, a rotating shaft 32 and a bearing plate 33. The motor 31 is installed at the bottom of the processing tank 11. The lower end of the rotating shaft 32 is connected to the motor 31, and the rotating shaft 32 is designed to be a movable telescopic structure. The bearing plate 33 is fixedly installed at the upper end of the rotating shaft 32, and the bearing plate 33 can be driven by the motor 31 and the rotating shaft 32 to rotate. When the circuit board starts to be spray-etched, it only needs to be placed on the bearing plate 33, and the circuit board will rotate with the rotating shaft 32 and the bearing plate 33 under the drive of the motor 31. At this time, the etching liquid sprayed on the upper surface of the circuit board will also rotate with the circuit board, thereby generating a centrifugal force to make the etching liquid overflow to the edge of the circuit board, and finally achieve the purpose of weakening or even eliminating the puddle effect.

[0021] The upper surface of the carrier plate 33 is provided with a carrier groove 331 and a plurality of overflow openings 332. The plurality of overflow openings 332 are respectively provided at four sides of the carrier groove 331, and the two ends of the plurality of overflow openings 332 are respectively connected to the inner side of the carrier groove 331 and the outer side of the carrier plate 33. Specifically, in the present embodiment, the bottoms of the plurality of overflow openings 332 are arranged to be inclined downward from the inner side to the outer side, and the bottom of the carrier groove 331 is also provided with a plurality of overflow holes 333 that penetrate up and down. The overflow openings 332 that connect the inner side and the outer side of the carrier plate 33 are more convenient for the etching liquid on the upper surface of the circuit board to be discharged, while the overflow holes 333 at the bottom of the carrier groove 331 are more convenient for the etching liquid at the bottom of the circuit board to be discharged, thereby preventing the aged etching liquid from accumulating on the surface of the circuit board and affecting the etching effect.

[0022] The vacuum assembly 40 includes a lifting cylinder 41, a vacuum cover 42 and a suction pipe 43. The upper end of the lifting cylinder 41 is fixedly mounted on the upper frame 20, and the vacuum cover 42 is designed as a slot cover structure with an opening at the lower end. It is fixedly mounted on the lower end of the lifting cylinder 41 and can be moved up and down by the lifting cylinder 41. The suction pipe 43 is connected to the inner side of the vacuum cover 42. Specifically, in this embodiment, a sealing ring 44 is also provided on the vacuum cover 42, and the sealing ring 44 is annular and integrally arranged on the outer side of the vacuum cover 42. During the etching process, the vacuum cover 42 covers the processing groove 11 to form a closed space, and then the gas in the closed space is extracted through the suction pipe 43 to put the circuit board in a vacuum environment. Etching in a vacuum state is not only efficient and of good quality, but also can prevent many external interferences.

[0023] The spray etching assembly 50 includes a spray rack 51 and a plurality of spray heads 52. The spray rack 51 is fixedly mounted on the inner top of the vacuum upper cover 42, and a plurality of the spray heads 52 are arranged in sequence at the lower end of the spray rack 51. Specifically, in the present embodiment, an adjustment slide rail (not shown) is further provided at the lower end of the spray rack 51, and a plurality of the spray heads 52 are all mounted on the adjustment slide rail and can be adjusted to slide horizontally, and the spacing between the plurality of the spray heads 52 gradually increases from the middle to both sides. The plurality of spray heads 52 arranged in sequence can ensure that the surface of the circuit board receives the full spray of the etching liquid, and the spray heads 52 with adjustable spacing are designed to gradually increase from the middle to both sides, so that the center of the circuit board surface can receive more etching liquid etching, further balancing the adverse effects of the puddle effect.

[0024] In summary, the beneficial effects of the energy-saving and environmentally friendly vacuum etching device 100 of the utility model are: by designing a movable and rotatable supporting component 30 to drive the circuit board in the etching process to rotate, the centrifugal force generated by the rotation of the circuit board is used to weaken or even eliminate the puddle effect in the etching process, which saves more work than the traditional vacuum suction operation, thereby achieving the energy-saving and environmental protection purpose of the etching device; a variety of overflow structures are designed on the supporting plate 33, which makes it easier to discharge the etching waste liquid from the circuit board and the supporting plate 33 during the etching process, thereby avoiding its adverse effects on the etching effect of the circuit board; the vacuum component 40 is designed to keep the circuit board in a vacuum state during the etching process, which is not only beneficial to improving the etching efficiency and effect, but also can effectively prevent the pollution of the circuit board by external dirt; the spray etching component 50 is designed as an adjustable structure design, which can further balance the etching effect of the middle and edge of the circuit board; the utility model is highly practical and has a strong promotion significance.

[0025] The above-mentioned embodiment only expresses one implementation method of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An energy-saving and environmentally friendly vacuum etching device, characterized in that: It includes a processing table, an upper frame, a bearing assembly, a vacuum assembly and a spray etching assembly. The processing table is provided with a processing groove with an upper end opening. The upper frame is erected on the processing table and is located above the processing groove. The bearing assembly is installed in the processing groove. The vacuum assembly is installed on the upper frame and is located above the bearing assembly. The spray etching assembly is installed at the lower end of the vacuum assembly. The bearing assembly includes a motor, a rotating shaft and a bearing plate. The motor is installed at the bottom of the processing groove. The lower end of the rotating shaft is connected to the motor power, and the rotating shaft is designed with a movable telescopic structure. The bearing plate is fixedly installed at the upper end of the rotating shaft, and the bearing plate can be driven by the motor and the rotating shaft to rotate.

2. The energy-saving and environmentally friendly vacuum etching device according to claim 1, characterized in that: The upper surface of the bearing plate is provided with a bearing groove and a plurality of overflow openings, the plurality of overflow openings are respectively arranged on four sides of the bearing groove, and the two ends of the plurality of overflow openings are respectively connected with the inner side of the bearing groove and the outer side of the bearing plate.

3. The energy-saving and environmentally friendly vacuum etching device according to claim 2, characterized in that: The bottoms of the plurality of overflow openings are arranged to be inclined downward from the inside to the outside, and the bottom of the bearing groove is also provided with a plurality of overflow holes penetrating up and down.

4. The energy-saving and environmentally friendly vacuum etching device according to claim 1, characterized in that: The vacuum assembly includes a lifting cylinder, a vacuum upper cover and a suction pipe; the upper end of the lifting cylinder is fixedly mounted on the upper frame, and the vacuum upper cover is designed as a slot cover structure with an open lower end. It is fixedly mounted on the lower end of the lifting cylinder and can be moved up and down by the lifting cylinder. The suction pipe is connected to the inner side of the vacuum upper cover.

5. The energy-saving and environmentally friendly vacuum etching device according to claim 4, characterized in that: The vacuum upper cover is also provided with a sealing ring, which is annular and integrally arranged on the outer side of the vacuum upper cover.

6. The energy-saving and environmentally friendly vacuum etching device according to claim 1, characterized in that: The spray etching assembly comprises a spray frame and a plurality of spray heads; the spray frame is fixedly mounted on the inner top of the vacuum upper cover, and the plurality of spray heads are arranged in sequence and mounted on the lower end of the spray frame.

7. The energy-saving and environmentally friendly vacuum etching device according to claim 6, characterized in that: The lower end of the spray rack is also provided with an adjustment slide rail, and the plurality of spray heads are mounted on the adjustment slide rail and can slide horizontally, and the spacing between the plurality of spray heads gradually increases from the middle to both sides.

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