Vacuum suction etching tool

Abstract

The present application relates to a kind of etching liquid vacuum suction knife, including: a long strip-shaped cover, top is provided with several suction joints;A long strip-shaped air chamber cover, top is arranged in the cover inside, the air chamber cover inside is separated into several air chambers by several partition blocks, the air chamber is communicated with the suction joint matched;A liquid suction disc assembly has several long strip-shaped liquid suction discs, each liquid suction disc is matched with an air chamber and is air-tightly combined below the air chamber cover, the bottom plate of each liquid suction disc has several through suction holes;And at least one roller is arranged at the adjacent end of each liquid suction disc.Thereby, a kind of etching liquid vacuum suction knife is provided, and the effect that the liquid suction capacity does not weaken and is consistent is provided.

Description

Technical Field

[0001] This utility model relates to an etching solution vacuum suction knife, and more particularly to a design that separates the axle segments without inserting them into the suction chamber without compromising the vacuum level. Background Technology

[0002] The widely used horizontal PCB etching production line is simple to operate and has a large capacity. This type of production line sprays etching solution on both the top and bottom surfaces of the PCB board. During the etching process, because the etching solution in the middle of the upper surface of the PCB board flows away more slowly than the etching solution at the edges, some of the reacted etching solution accumulates in the middle. The amount of fresh etching solution replenished is reduced, and the etching speed is correspondingly slower. This is what the industry calls the pool effect. In order to solve the pool effect, etching solution suction blades are usually installed close to the surface of the PCB board to remove the reacted etching solution in real time, thereby making the etching rate in the middle and the edges of the board the same.

[0003] like Figure 1 As shown, the conventional etching solution suction knife 90 has several suction boxes 91, and a long wheel shaft 92 passes through each suction box 91, and several rollers 93 are arranged at intervals on the long wheel shaft 92; however, because the long wheel shaft 92 passes through each suction box 91, the vacuum degree of each suction box 91 is destroyed by the long wheel shaft 92, resulting in a weakened liquid suction capacity or / and inconsistent liquid suction capacity, and unstable etching quality. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum suction knife for etching solution, which has the effect of maintaining consistent and undiminished suction capacity.

[0005] To achieve the above objectives, the specific technical solution of this utility model for an etching solution vacuum suction knife is as follows: A long, narrow cover with several suction connectors at the top; a long, narrow air chamber shroud located inside the cover, the air chamber shroud being divided into several air chambers by several partitions, the air chambers being connected to the corresponding suction connectors; a liquid suction tray assembly having several long, narrow liquid suction trays, each liquid suction tray being airtightly connected to one of the air chambers below the air chamber shroud, the base of each liquid suction tray having several through suction holes; and at least one roller located at the adjacent end of each liquid suction tray.

[0006] Furthermore, the suction tray is U-shaped, with concave axle positioning spaces formed at both ends. The axle of the roller is placed into these axle positioning spaces and positioned using axle positioning blocks locked within them. A pair of suction knife positioning blocks, each with an outwardly extending positioning rod, are also locked at both ends of the housing. A pair of outer rollers are also provided at both ends of the suction tray assembly. Each outer roller has an outwardly extending axle, and an axle positioning sleeve is fitted onto it. This sleeve is locked to the suction knife positioning block and the housing. The axle is placed into the axle positioning space and positioned using the axle positioning blocks locked within it. The partition block is recessed at both ends of the suction plate to form a suction plate positioning space, the partition block is recessed at the roller / outer end roller to form a roller rotation space, and the suction knife positioning block is recessed at the wheel axle positioning sleeve block to form a wheel axle positioning sleeve block positioning space. Attached Figure Description

[0007] Figure 1 An external view of the existing etchant suction knife structure; Figure 2 This is a structural appearance drawing of the present invention; Figure 3 This is an anatomical view of the structure of this utility model; Figure 4 This is a partial structural anatomical view of the present invention; Figure 5 This is a cross-sectional view of the structure of this utility model; Figure 6 This is an enlarged cross-sectional view of part of the structure of this utility model; Explanation of markings in the diagram: 10: Shell; 11: Air extraction connector; 12: Suction knife positioning block; 13: Positioning rod; 14: Axle positioning sleeve positioning space; 20: Air chamber diaphragm; 21: partition; 22: Air chamber; 23: Suction tray positioning space; 24: Roller rotation space; 30: Suction plate assembly; 31: Suction tray; 32: Through suction hole; 33: Axle positioning space; 40: Roller; 41: Axle; 42: Axle positioning block; 50: Outer end roller; 51: Axle; 52: Axle positioning sleeve; 90: Etching fluid suction knife; 91: Suction box; 92: Long wheel shaft; 93: Roller; Detailed Implementation

[0008] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0009] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0010] The following is a reference to the appendix. Figure 2 To be continued Figure 6 This utility model describes the following: A long, narrow cover 10 has several air extraction connectors 11 on its top. A pair of suction knife positioning blocks 12 are also locked at both ends of the cover 10. Each suction knife positioning block 12 has an outwardly extending positioning rod 13. A long strip-shaped air chamber cover 20 is disposed inside the cover 10. The air chamber cover 20 is divided into several air chambers 22 by several partitions 21. The air chambers 22 are connected to the matching air extraction connector 11. A liquid suction tray assembly 30 has several elongated liquid suction trays 31, each of which is fitted with an air chamber 11 and is airtightly connected to the bottom of the air chamber cover 20. The base of each liquid suction tray 31 has several through suction holes 32. The liquid suction tray 31 is a U-shaped liquid suction tray, and the two ends of the liquid suction tray 31 are recessed to form a wheel axle positioning space 33. Two rollers 40 are disposed at the adjacent ends of each suction tray 31. The axle 41 of the rollers 40 is placed into the axle positioning space 33, and the axle 41 is positioned by the axle positioning block 42 locked in the axle positioning space 33; and A pair of outer end rollers 50 are disposed at both ends of the suction tray assembly 30. Each outer end roller 50 has an outwardly extending axle 51. The axle 51 is fitted with an axle positioning sleeve 52. The axle positioning sleeve 52 is locked to the suction knife positioning block 12 and the cover 10. The axle 51 is placed into the axle positioning space 33 and positioned by the axle positioning block 42 locked in the axle positioning space 33.

[0011] Furthermore, the partition block 21 has a concave suction plate positioning space 23 at both ends relative to the suction plate 31, and a concave roller rotation space 24 relative to the roller 40 / outer roller 50. The suction knife positioning block 12 has a concave wheel axle positioning sleeve positioning space 14 relative to the wheel axle positioning sleeve block 52. The suction knife positioning block 13 is fixed to the cover 10 with screws to the air chamber shroud 20, the wheel axle positioning block 42 is fixed to the suction plate 31 with screws, and the wheel axle positioning sleeve block 52 is fixed to the suction knife positioning block 12 and the cover 10 with screws.

[0012] Based on this configuration, the present invention first locks the top of the air chamber shroud 20 and the pair of suction knife positioning blocks 12 inside the cover 10, and then hermetically seals each of the suction trays 31 of the suction tray assembly 30 to the bottom of the air chamber shroud 20. Each suction tray 31 can be hermetically sealed to the bottom of the air chamber shroud 20 by heat fusion (e.g., Figure 4 (As shown), finally, lock each roller 40 and the outer end roller 50 to the suction tray assembly 30 (as shown). Figure 5 (As shown); thereby, the present invention adopts a segmented design for the axle 41 of the roller 40 and the axle 51 of the outer roller 50. The axles 41 and 51 will not penetrate (insert) the suction plate 31, the airtight relationship between the suction plate 31 and the air chamber shroud 20 will not be damaged, and the vacuum degree of the suction plate 31 can be maintained consistently, thus having the effect of not weakening and maintaining the same suction capacity.

[0013] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A vacuum suction tool for etching solution, characterized in that, Including: A long, narrow cover with several air extraction ports on the top; A long, narrow air chamber shroud is positioned inside the housing. The air chamber shroud is divided into several air chambers by several partitions, and each air chamber is connected to a matching air extraction connector. A liquid suction tray assembly comprising several elongated liquid suction trays, each of which is fitted with an air chamber and airtightly connected to the lower part of the air chamber cover; the base of each liquid suction tray has several through suction holes; and At least one roller is located at the adjacent end of each suction tray.

2. The etching solution vacuum suction knife according to claim 1, characterized in that, The suction tray is a U-shaped suction tray, and the two ends of the suction tray are recessed to form axle positioning spaces. The axle of the roller is placed into the axle positioning space, and the axle is positioned by the axle positioning block locked in the axle positioning space.

3. The etching solution vacuum suction knife according to claim 1, characterized in that, The cover is also locked at both ends with a pair of suction knife positioning blocks, which have a positioning rod extending outward.

4. The etching solution vacuum suction tool according to claim 3, characterized in that, The suction plate assembly is also provided with a pair of outer end rollers at both ends. Each outer end roller has an outwardly extending axle. An axle positioning sleeve is fitted onto the axle. The axle positioning sleeve is locked to the suction knife positioning block and the cover. The axle is placed into the axle positioning space and positioned by the axle positioning block locked in the axle positioning space.

5. The etching solution vacuum suction tool according to claim 4, characterized in that, The partition block is recessed at both ends of the suction plate to form a suction plate positioning space, the partition block is recessed at the roller / outer end roller to form a roller rotation space, and the suction knife positioning block is recessed at the wheel axle positioning sleeve block to form a wheel axle positioning sleeve block positioning space.

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