Efficient etching liquid spraying device

Abstract

The utility model discloses a high-efficiency etching liquid medicine spraying device, which relates to the technical field of printed circuit board processing equipment and comprises a machine body and a conveying assembly arranged in the machine body in a penetrating manner and used for conveying workpieces, spraying assemblies used for spraying liquid medicine are arranged above and below the conveying assembly, each spraying assembly comprises an upper spraying frame and a lower spraying frame, the upper spraying frame comprises a limiting frame connected to a frame of the conveying assembly, and a first set of spraying pieces and a second set of spraying pieces are placed on the limiting frame. According to the utility model, the lifting assembly and the transmission assembly are matched with the servo motor to adjust and change the positions of the first group of spraying pieces and the second group of spraying pieces, so that when spraying and etching operations of different types of products are carried out, the first group of spraying pieces can be moved upwards, and the second group of spraying pieces with replaced nozzles or maintained can be moved downwards to carry out spraying operations; the nozzle replacement operation can be conveniently completed in a non-stop state, and the application range and the use flexibility of the equipment can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to printed wiring board processing equipment technical field especially relates to a kind of high-efficiency etching liquid spraying device. BACKGROUND

[0002] Printed circuit board is the support body of electronic components, and also the carrier of electrical connection of electronic components. In the production process of circuit board, multiple process steps are involved, including etching process. In the production of circuit board, etching is used to remove excess copper foil to form the required circuit pattern, which requires the use of etching spraying device. The existing etching spraying device usually includes nozzle, spraying system, etching liquid circulation system, etc. The design of nozzle needs to ensure that the etching liquid can uniformly cover the surface of circuit board.

[0003] Currently, the existing liquid spraying device has low drug water update frequency, which can not directly spray fresh drug water on the production board line, increase the etching amount of the line side, reduce the etching factor of the line, and the etching efficiency is low. The water mist sprayed by the nozzle used is usually fan-shaped, and the impact force is not strong, and it is easy to atomize. Although the nozzle in some liquid spraying devices adopts a conical nozzle to perform spraying operation (such as Chinese utility model patent with application number CN202211642689.9), the spray pipe and nozzle on the liquid spraying device are not easy to replace, and disassembly and replacement need to stop the machine, which greatly reduces the production efficiency of the factory and has low practicality. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem that the spray pipe and nozzle on the existing liquid spraying device are not easy to replace, and disassembly and replacement need to stop the machine, which greatly reduces the production efficiency of the factory and has low practicality, and proposes a kind of high-efficiency etching liquid spraying device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A kind of high-efficiency etching liquid spraying device, including machine body, the conveying assembly for conveying workpiece is installed in machine body, the spraying assembly for spraying liquid is installed above and below the conveying assembly, the spraying assembly includes upper spraying frame and lower spraying frame, the upper spraying frame includes limiting frame connected to the frame of conveying assembly, the first group of spraying parts and the second group of spraying parts are respectively placed on the limiting frame, the first group of spraying parts and the second group of spraying parts are equipped with lifting assembly for lifting, the lifting assembly top is equipped with transmission assembly and servo motor for driving, the first group of spraying parts and the second group of spraying parts are equipped with conical nozzle for spraying liquid.

[0007] Further, the lifting assembly comprises a threaded slide and a screw rod, a threaded hole matched with the screw rod is formed in the threaded slide, and the top of the screw rod is connected with the through connection of the machine body through a bearing, and the bottom of the screw rod is connected with the through connection of the limiting frame through a bearing.

[0008] Further, a connecting block is arranged on the threaded slide, and a movable plate is movably connected to the side surface of the connecting block.

[0009] Further, a medicine tank for storing medicine liquid and a medicine pump for extracting medicine liquid are arranged outside the machine body, and a filter for filtering residues in the medicine liquid is connected between the medicine tank and the medicine pump through a pipeline.

[0010] Further, a medicine spraying main pipe and spraying hoses connected to the first group of spraying members and the second group of spraying members are arranged between the medicine pump and the spraying assembly.

[0011] Further, a circulating pump and a circulating pipeline are arranged on the medicine tank, and the circulating pump is connected with the medicine tank through the circulating pipeline.

[0012] Further, a liquid suction vacuum knife for sucking remaining medicine liquid is arranged on the conveying assembly, and the liquid suction vacuum knife is located above the medicine liquid etching working surface of the conveying assembly.

[0013] Further, a vacuum pump is arranged outside the medicine pump, and a vacuum pipeline and a jet device are connected between the vacuum pump and the liquid suction vacuum knife.

[0014] Further, the transmission assembly comprises a driving wheel, a driven wheel and a transmission chain, and two groups of transmission assemblies are distributed.

[0015] As described above, due to the adoption of the above technical scheme, the beneficial effects of the present application are as follows:

[0016] 1. In the present application, the lifting assembly and the transmission assembly cooperate with the servo motor to adjust and change the positions of the first group of spraying members and the second group of spraying members, so that when different types of products are subjected to spraying etching operation, the first group of spraying members can be moved upward, and the second group of spraying members with replaced nozzles or repaired can be moved downward to implement spraying operation, thereby facilitating the replacement of nozzles without stopping the machine, and improving the application range and use flexibility of the equipment.

[0017] 2. The utility model discloses, through the setting of connecting block and movable plate, make the first group of spray nozzles and / or second group of spray nozzles in the upper spray frame to the body top, open the body top cover, can be through artificial grip first group of spray nozzles and / or second group of spray nozzles to the side of connecting block transverse movement, push movable plate to turn over outward, can remove spray nozzle from connecting block, carry out the replacement or maintenance operation of first group of spray nozzles and / or second group of spray nozzles, and the structure is convenient to assemble and disassemble, convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the internal structure schematic diagram of body's inlet end in the utility model;

[0019] Figure 2 It is the internal structure schematic diagram of body's top view in the utility model;

[0020] Figure 3 It is the top view structure schematic diagram of upper spray frame in the utility model;

[0021] Figure 4 It is the structure schematic diagram of screw slide base and first group of spray nozzles in the utility model;

[0022] Figure 5 It is the internal structure schematic diagram of connecting block's front in the utility model;

[0023] Figure 6 It is the top structure schematic diagram of body in the utility model.

[0024] Legend:

[0025] 1, body, 2, conveying assembly, 3, medicine tank, 4, medicine pump, 5, medicine spray main pipe, 6, jet device, 7, filter, 8, spray assembly, 801, conical nozzle, 9, liquid suction vacuum knife, 10, vacuum pipeline, 11, vacuum pump, 12, circulating pump, 13, circulating pipeline, 14, upper spray frame, 1401, limiting frame, 1402, first group of spray nozzles, 1403, second group of spray nozzles, 1404, connecting block, 1405, spray hose, 1406, movable plate, 15, lower spray frame, 16, transmission assembly, 17, servo motor, 18, lifting assembly, 1801, screw rod, 1802, screw slide base. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0027] Reference Figures 1-6 The utility model provides a high -efficient etching liquid spraying device, including body 1, the conveying assembly 2 who is equipped for conveying work piece throughout in body 1, the spraying assembly 8 for spraying liquid is equipped above, below conveying assembly 2, the spraying assembly 8 includes upper spraying frame 14, lower spraying frame 15, upper spraying frame 14 includes the limiting frame 1401 connected on the frame of conveying assembly 2, the first group of spraying piece 1402, the second group of spraying piece 1403 are placed respectively on limiting frame 1401, the first group of spraying piece 1402 and the second group of spraying piece 1403 are equipped with the lifting assembly 18 for lifting, lifting assembly 18 top installs transmission assembly 16 and is used for the servo motor 17 of driving, the first group of spraying piece 1402 and the second group of spraying piece 1403 are equipped with the conical nozzle 801 for spraying liquid.

[0028] By adopting the above technical scheme, the first group of spraying piece 1402, the second group of spraying piece 1403 are cross interval distribution, and the first group of spraying piece 1402, the second group of spraying piece 1403 are driven through lifting assembly 18, transmission assembly 16 and servo motor 17, so that the height of the first group of spraying piece 1402, the second group of spraying piece 1403 can be adjusted, and the replacement operation of the nozzle can be completed without stopping the machine, which has high practicability.

[0029] Further, by the conical nozzle 801, a solid conical spraying method is adopted to improve the impact force on the plate surface to ensure the frequency of fresh liquid update, so that it is easier to enter the fine circuit for etching exchange, which can meet the requirements of the printed circuit board industry for high-precision and high-quality circuit boards, thereby improving the competitive advantage of customers in the market.

[0030] Further, the lower spraying frame 15 and the upper spraying frame 14 have the same structure, so that the spraying piece in the lower spraying frame 15 corresponding to the upper spraying frame 14 can be replaced, and the etching operation of the equipment on different types of products can be completed, which has high practicability.

[0031] The lifting assembly 18 includes a threaded slide 1802 and a lead screw 1801, the threaded slide 1802 is provided with a threaded hole matched with the lead screw 1801, and the top of the lead screw 1801 is connected with the through connection of the body 1, and the bottom of the lead screw 1801 is connected with the through connection of the limiting frame 1401 through a bearing.

[0032] Specifically, the section of the limiting frame 1401 is in the shape of a "D" structure, and the top of the limiting frame 1401 is in a hollow structure, for limiting the minimum distance between the first group of spray members 1402, the second group of spray members 1403 and the conveying assembly 2.

[0033] Further, the limiting frame 1401 is detachably connected with the frame of the conveying assembly 2, and the surface of the limiting frame 1401 is provided with corresponding placing grooves corresponding to the first group of spray members 1402 and the second group of spray members 1403, and the placing grooves are provided with buffer pads, so as to avoid the shaking of the conveying assembly 2 due to conveying from being transmitted to the spraying assembly 8, and affect the connection stability of each part on the spraying assembly 8.

[0034] The threaded slide 1802 is provided with a connecting block 1404, and the side surface of the connecting block 1404 is movably connected with a movable plate 1406.

[0035] Specifically, the section of the movable plate 1406 is in the shape of a "J", the inside of the connecting block 1404 is in a hollow structure, and one end is provided with a mounting through hole, so as to conveniently place the first group of spray members 1402 and / or the second group of spray members 1403.

[0036] Further, through the arrangement of the connecting block 1404 and the movable plate 1406, when the first group of spray members 1402 and / or the second group of spray members 1403 in the upper spraying frame 14 are lifted upward to the top of the machine body 1, the cover at the top of the machine body 1 is opened, the first group of spray members 1402 and / or the second group of spray members 1403 can be moved horizontally to the side of the connecting block 1404 by artificial gripping, the movable plate 1406 is pushed to flip outward, the spray members can be moved out of the connecting block 1404, and the replacement or maintenance work of the first group of spray members 1402 and / or the second group of spray members 1403 can be carried out, which is high in convenience and easy to use.

[0037] The machine body 1 is externally provided with a medicine tank 3 for storing medicine liquid and a medicine pump 4 for extracting the medicine liquid, and a filter 7 for filtering the residues in the medicine liquid is connected between the medicine tank 3 and the medicine pump 4 through a pipeline.

[0038] Specifically, the medicine pump 4 extracts the medicine liquid in the medicine tank 3, and at the same time, the impurities in the medicine liquid are filtered by the filter 7 to prevent the nozzle from being blocked; the top of the machine body 1 is provided with a cover for maintenance.

[0039] The medicine pump 4 and the spraying assembly 8 are provided with a medicine spraying main pipe 5 and a spraying hose 1405 connected to the first group of spray members 1402 and the second group of spray members 1403.

[0040] Specifically, the drug water spraying main pipe 5 is provided with a plurality of valves for controlling the drug liquid between the drug water spraying main pipe 5 and the spraying hose 1405 on the first group of spraying members 1402 and the second group of spraying members 1403. After the drug liquid is pumped by the drug water pump 4, the drug liquid enters the first group of spraying members 1402 and the second group of spraying members 1403 through the drug water spraying main pipe 5 and the spraying hose 1405, and is sprayed out through the conical nozzle 801, so that the sprayed drug water chemically reacts with the surface of the processed product to complete the etching work of the circuit board.

[0041] The drug water tank 3 is provided with a circulating pump 12 and a circulating pipeline 13. The circulating pump 12 is connected to the drug water tank 3 through the circulating pipeline 13.

[0042] Specifically, the output port of the circulating pipeline 13 is located above the liquid level in the drug water tank 3, so that the circulating pump 12 works to spray the drug liquid at the peripheral position in the drug water tank 3 through the circulating pipeline 13, thereby circulating and making the etching drug liquid fully flow to prevent crystallization.

[0043] The conveying assembly 2 is provided with a liquid suction vacuum knife 9 for sucking the remaining drug liquid. The liquid suction vacuum knife 9 is located above the drug liquid etching working surface of the conveying assembly 2.

[0044] Specifically, the liquid suction vacuum knife 9 is used to suck the drug water that has chemically reacted on the surface of the processed product, so that the subsequently sprayed drug water is fully attached to the processed product.

[0045] The outer side of the drug water pump 4 is provided with a vacuum pump 11. The vacuum pump 11 is connected to the liquid suction vacuum knife 9 through a vacuum pipeline 10 and a jet device 6.

[0046] Specifically, when the vacuum pump 11 works, negative pressure is generated when the drug liquid passes through the jet device 6, and the liquid suction vacuum knife 9 sucks the drug liquid on the surface of the processed product board, and finally returns to the drug water tank 3.

[0047] The transmission assembly 16 includes a driving wheel, a driven wheel and a transmission chain. The transmission assembly 16 is distributed in two groups.

[0048] Specifically, the driving wheel on the transmission assembly 16 is driven by a servo motor 17, so that the driven wheel rotates, and in turn drives the screw rod 1801 to rotate, which is used to adjust the position of the first group of spraying members 1402 and the second group of spraying members 1403, and facilitates the etching work of the processed product.

[0049] Working principle: in use, first, the medicine pump 4 extracts the liquid medicine in the medicine tank 3, the liquid medicine enters the filter 7 through the pipeline, the filtered liquid medicine is dispersed into each group of spray hoses 1405 from the medicine spray main pipe 5, and is sprayed from the conical nozzles 801 on the upper spray frame 14 and the lower spray frame 15, so as to spray the surface of the circuit board; the liquid suction vacuum knife 9 can suck the liquid medicine on the surface of the circuit board through the cooperation of the vacuum pump 11 and the jet device 6 to generate negative pressure; finally, the liquid medicine is returned to the medicine tank 3 to circulate, and the liquid medicine in the medicine tank 3 is circulated internally through the cooperation of the circulating pump 12 and the circulating pipeline 13, so that the etching liquid medicine fully flows to prevent the liquid medicine in the medicine tank 3 from crystallizing; then, when different types of products are sprayed and etched, the first group of spray elements 1402 and the second group of spray elements 1403 are driven by the lifting assembly 18, the transmission assembly 16 and the servo motor 17 to adjust the positions of the first group of spray elements 1402 and the second group of spray elements 1403; when the first group of spray elements 1402 rises to the top of the machine body 1, the top cover of the machine body 1 can be opened, the first group of spray elements 1402 is moved horizontally to the side of the connecting block 1404 by artificial gripping, the movable plate 1406 is turned outward, the spray element is moved out of the connecting block 1404, the first group of spray elements 1402 is replaced or repaired, which is convenient and easy to use, and the second group of spray elements 1403 moves downward to spray the product, so that the replacement of the spray element is completed without stopping the machine, which is beneficial to improve the application range and use flexibility of the equipment, the equipment can improve the convenience of maintenance, effectively reduce the downtime of the equipment, and improve the production efficiency.

[0050] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A high-efficiency etching liquid spraying device, comprising a machine body, a conveying assembly penetratingly arranged in the machine body for conveying a workpiece, characterized in that, The conveying assembly is provided with a spraying assembly above and below for spraying liquid medicine, the spraying assembly comprises an upper spraying frame and a lower spraying frame, the upper spraying frame comprises a limiting frame connected to the frame of the conveying assembly, the limiting frame is respectively provided with a first group of spraying members and a second group of spraying members, the first group of spraying members and the second group of spraying members are provided with a lifting assembly for lifting, the lifting assembly is provided at the top with a transmission assembly and a servo motor for driving, the first group of spraying members and the second group of spraying members are provided with a conical nozzle for spraying liquid medicine.

2. The high-efficiency etching liquid spraying device according to claim 1, characterized in that, The lifting assembly comprises a threaded slide and a screw rod, the threaded slide is provided with a threaded hole matched with the screw rod, the top of the screw rod is connected with the through connection of the machine body, and the bottom of the screw rod is connected with the through connection of the limiting frame through a bearing.

3. The high-efficiency etching liquid spraying device according to claim 2, characterized in that, The threaded slide is provided with a connecting block, and the side surface of the connecting block is movably connected with a movable plate.

4. The high-efficiency etching liquid spraying device according to claim 1, characterized in that, The machine body is externally provided with a medicine tank for storing liquid medicine and a medicine pump for extracting liquid medicine, and the medicine tank and the medicine pump are connected through a pipeline with a filter for filtering residues in the liquid medicine.

5. The high-efficiency etching liquid spraying device according to claim 4, characterized in that, The medicine pump and the spraying assembly are provided with a medicine spraying main pipe and a spraying hose connected to the first group of spraying members and the second group of spraying members.

6. The high-efficiency etching liquid spraying device according to claim 4, characterized in that, The medicine tank is provided with a circulating pump and a circulating pipeline, and the circulating pump is connected with the medicine tank through the circulating pipeline.

7. The high-efficiency etching liquid spraying device according to claim 1, characterized in that, The conveying assembly is provided with a liquid suction vacuum knife for sucking the remaining liquid medicine, and the liquid suction vacuum knife is located above the liquid etching working surface of the conveying assembly.

8. The high-efficiency etching liquid spraying device according to claim 4, characterized in that, The outer side of the medicine pump is provided with a vacuum pump, and the vacuum pump is connected with the liquid suction vacuum knife through a vacuum pipeline and a jet device.

9. The high-efficiency etching liquid spraying device according to claim 1, characterized in that, The transmission assembly comprises a driving wheel, a driven wheel and a transmission chain, and the transmission assembly is distributed in two groups.

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