CN201080496Y

CN201080496Y - Fixture for holding flexible circuit board

Info

Publication number: CN201080496Y
Application number: CNU200620145420XU
Authority: CN
Inventors: 程恩杰
Original assignee: BYD Co Ltd
Current assignee: Shenzhen Holitech Optoelectronics Co Ltd
Priority date: 2006-12-28
Filing date: 2006-12-28
Publication date: 2008-07-02
Anticipated expiration: 2016-12-28

Abstract

The utility model discloses a fixture for clamping a flexible printed circuit (FPC), comprising a hanger, hanging pieces and two groups of fixing parts. The hanger comprises a frame; first hanging arms in parallel with each other and perpendicular to the frame plane are fixed on two sides of the symmetry axis at the two opposite sides of the frame. Through holes matched with the first hanging arms are arranged on the tops of the two top corners of the hanging pieces. The first group of fixing parts is used to fix the hanging pieces on the hanging arms; the second group of fixing parts is used to fix the flexible printed circuit (FPC) on the hanging pieces. The utility model can not only effectively prevent the folding problem of the FPC in the course of chemicalizing nickel, but also effectively increase the load quantity during the chemicalizing nickel and improve work efficiency.

Description

A kind of clamping flexible circuit board tool

Technical field

The utility model relates to a kind of tool that is applied in chemical nickel and gold operation in the wiring board production, particularly is applied to the tool of chemical nickel and gold operation in the flexible circuit board production.

Background technology

Flexible circuit board, be that FPC has distribution density height, in light weight, thin thickness, less, the flexibility ratio advantages of higher of distribution space constraint, meet the compact development trend of electronic product fully, therefore be widely used in PC and fields such as peripheral product, communication product, indicating meter and consumption electronic products.

The flow process of flexible circuit board is as follows: Copper Foil severing-boring-Hei hole-copper facing-dry film lamination-exposure-development-etching-pasting protective film-press mold-surface treatment-impact briquetting.Wherein the surface treatment of flexible circuit board comprises multiple treatment processs such as plating is gold-plated, chemical nickel and gold, eleetrotinplate, spray tin, the heavy tin of chemistry.In above-mentioned treatment process, but chemical nickel and gold coating integrates multiple function such as can weld, can contact the conducting routing, can dispel the heat, and is the processing procedure that the single processing of wiring board but serves many purposes, and still contends with it without any technology at present.

The chemical nickel and gold process flow is as follows: oil removing-washing-microetch-washing-acidleach-washing-preimpregnation-activation-washing-heavy nickel-washing-turmeric-washing.The most important thing is heavy nickel in the whole flow process.

Heavy nickel reactant all needs to utilize the self-catalyzed reaction of nickel sheet to mention reactive behavior earlier before producing product in the nickel groove to hold in the palm cylinder in chemical nickel and gold, so that reaction can immediately start during products production, in the heavy nickel process of product, carry out continuously corresponsively simultaneously, need keep certain charge capacity in order to guarantee.Described charge capacity equals the copper face summation (dm2) of the required heavy nickel gold of product and the ratio of nickel cell body long-pending (L).The charge capacity of general chemical nickel and gold all requires to maintain 0.5dm2/L-2dm2/L.Flexible circuit board is after the over-protective film pressing, and the Copper Foil area that the surface need be handled becomes very little, so that the volume respective design of heavy nickel groove gets is very little, to satisfy the requirement of charge capacity in the chemical nickel and gold operation.

In order to be used fully in the space that makes heavy nickel groove, to the very high requirement of tool proposition of chemical nickel and gold.At present in the industry cycle in, the chemical nickel and gold tool of flexible circuit board is continued to use the way of printed circuit board threading, is about to flexible circuit board and makes a call to a through hole respectively at four angles, passes through hole with fishing line again, spaced apart between wiring board with plastic jacket, product is bonded to fly to cling to then and produces.Each cell body all needs to inflate on the nickel gold production line owing to change, and feasible do not have securing flexible circuit board showy indefinite in cell body, so just is easy to make wiring board to produce fold in process of production.

The utility model content

For addressing the above problem, the utility model provides a kind of clamping flexible circuit board tool, effectively prevents the fold problem that FPC causes in the chemical nickel and gold process, increases work efficiency.

The technical solution of the utility model is: a kind of clamping flexible circuit board tool, wherein, comprise hanger, lacing film and two groups of fixing parts, described hanger comprises a framework, is fixed with first and is parallel to each other and perpendicular to the extension arm of frame plane on the symmetry axis both sides on these relative both sides of framework; Described lacing film one vertical angles top is provided with and the suitable through hole of the first extension arm; Described first group of fixing part is used for lacing film is fixed on the extension arm; Described second group of fixing part is used for flexible circuit board is fixed on lacing film.

Described framework also is provided with second and hangs arm, and described second hangs arm and first hangs the central shaft symmetry of arm about framework.Another vertical angles top of described lacing film is provided with and the suitable through hole of the second extension arm;

Also be provided with at least one hook on the described hanger, be used to hang described tool.

The inboard width of described lacing film is less than the space of a whole page width of flexible circuit board, and outside width is greater than the space of a whole page width of flexible circuit board, and length is the most shallow degree of depth of cell body that is used to hold described flexible circuit board.

Further, described inboard width is less than flexible circuit board space of a whole page width 5CM, and described outside width is greater than flexible circuit board space of a whole page width 5CM.

The thickness of described lacing film is 5CM.

Compared with prior art, the beneficial effects of the utility model are as follows:

Clamping flexible circuit board of the present utility model is compared with original printed circuit board threading method (promptly fixing the method for flexible circuit board by the fishing line that uses) fixing flexible wiring board with tool, can fix wiring board preferably, effectively having avoided in process of production, four fishing line imbalances make wiring board the fold problem occur; And because lacing film has certain thickness, but make in the both sides of lacing film all fixing circuit boards, effectively improved the charge capacity in the chemical nickel and gold process of product; Disposable can hitching organized lacing films more on the extension arm, improved working efficiency effectively; This jig structure is simple simultaneously, realizes that easily with low cost, hanger and lacing film can repeatedly use, and effectively reduce production cost.

Description of drawings

Contrast accompanying drawing and the utility model is explained below in conjunction with embodiment.

Fig. 1 is an overall schematic of the present utility model;

Fig. 2 is the hanger front view of Figure 1A-A face;

Fig. 3 is the utility model hanger vertical view;

Fig. 4 is the utility model lacing film synoptic diagram.

Embodiment

As shown in Figure 1 to Figure 3, the utility model comprises hanger 1, lacing film 2 and two groups of clips (not indicating among the figure).Hanger 1 mainly comprises framework 12, hangs arm 13 and links up with 11; Hook 11 is suspended on the connection portion that flies to cling to hanger 1; Hang arm 13 and be fixed on the framework 12, be used for fixing and support lacing film.Since change the nickel gold produce in the temperature of cell body have 85 ℃, and the used liquid medicine of surface treatment has the characteristic of high potential of hydrogen, therefore hangs arm 13 and framework 12 is selected the selection Teflon for use. First group of clip used In being fixed on, hangs on the arm lacing film; Described second group of clip is used for flexible circuit board is fixed on lacing film.

Consult Fig. 4 in the lump, lacing film 2 is sleeved on the hanger 1 by the extension arm 13 on the hanger and uses, and is provided with four apertures and is slightly larger than the aperture of hanging the arm diameter around lacing film 2, makes things convenient for lacing film to be enclosed within and hangs on the arm.Lacing film is fixed on by clip (not indicating among the figure) and hangs on the arm, makes flexible circuit board fold occur in the process of chemical nickel and gold in case the mistake of lacing film moves.The surface of clip is surrounded by the glue that one deck main component is a Resins, epoxy, guarantees that clip has certain heatproof and acid-alkali-resistant degree.Lacing film is selected polypropylene material for use.Utilize the polypropylene material smooth surface to be not easy that residual liquid medicine also is not easy because lacing film surface uneven nickel gold in the liquid medicine reaction process, and the characteristic of the high temperature resistant anti-high potential of hydrogen of polypropylene material, guaranteed that lacing film can not carry out secondary pollution and can not produce nickel gold phenomenon liquid medicine.In the flexible circuitry board industry, there are two specifications in the space of a whole page wide cut of general wiring board at present, and a kind of is 250MM, and another kind is 500MM.For flexible circuit board version piece of writing width is 250CM, and the inboard width of its lacing film is 245CM, and outside width is 255CM, and is 500CM for flexible circuit board space of a whole page width, and the inboard width of its lacing film is 495CM, and outside width is 505CM.The length of lacing film is decided according to the most shallow degree of depth of each cell body on the change nickel gold production line.Have certain rigidity for simultaneously lacing film, the charge capacity of the upper limb of lacing film and following nickel cylinder is kept the reactive behavior of liquid medicine, effectively utilizes nickel cylinder space, and the two sides of lacing film is fixed with flexible circuit board, so the thickness of lacing film has certain requirement.Lacing film thickness is best results when 5CM, and liquid medicine can connect between two flexible circuit board that are fixed on the same lacing film, effectively prevents the plating leakage that flexible circuit board causes because of lamination.

First flexible circuit board is fixed on a side of lacing film by clip, and the opposite side of lacing film is also fixed second flexible circuit board of same model.For the double-faced flexible wiring board, need dislocation when placing wiring board, be beneficial to the liquid medicine infiltration, prevent the appearance of wiring board one side plating leakage phenomenon.After fixing wiring board, lacing film is enclosed within on the extension arm; A whole set of tool hangs over by hook and flies target up train operation production.Utilize above-mentioned tool, effectively reduced the appearance of flexible circuit board fold phenomenon, with respect to the threading mode, the fold rate of product reduces 90%.Disposable can hitching organized lacing films more on the extension arm, increases work efficiency.

Above content is progressive detailed description of the utility model being done in conjunction with concrete preferred implementation in detail, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field; under the prerequisite that does not break away from the utility model design; just make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the utility model is determined by claims of being submitted to.

Claims

1. clamping flexible circuit board tool, it is characterized in that: comprise hanger, lacing film and two groups of fixing parts, described hanger comprises a framework, is fixed with in the symmetry axis both sides on these relative both sides of framework to be parallel to each other and to hang arm perpendicular to first of frame plane; Described lacing film is provided with and the suitable through hole of the first extension arm; Described first group of fixing part is used for lacing film is fixed on the extension arm; Described second group of fixing part is used for flexible circuit board is fixed on lacing film.

2. clamping flexible circuit board tool according to claim 1 is characterized in that: described framework is provided with second and hangs arm, and described second hangs arm and first hangs the central shaft symmetry of arm about framework.

3. thoroughly do away with the described clamping flexible circuit board of claim 2 tool, it is characterized in that: another vertical angles top of described lacing film is provided with and the suitable through hole of second wall built-up.

4. clamping flexible circuit board tool according to claim 1 and 2, it is characterized in that: described hanger is provided with at least one hook, is used to hang described tool.

5. clamping flexible circuit board tool according to claim 1 is characterized in that: the inboard width of described lacing film is less than the space of a whole page width of flexible circuit board, and outside width is greater than the space of a whole page width of flexible circuit board.

6. clamping flexible circuit board tool according to claim 5 is characterized in that: described inboard width is less than flexible circuit board space of a whole page width 5CM, and described outside width is greater than flexible circuit board space of a whole page width 5CM.

7. clamping flexible circuit board tool according to claim 1 is characterized in that: described lacing film thickness is preferably 5CM.

8. clamping flexible circuit board tool according to claim 1 is characterized in that: described first group of fixing part and second group of fixing part adopt clip.