CN217307990U

CN217307990U - Coating film shielding jig

Info

Publication number: CN217307990U
Application number: CN202123388978.4U
Authority: CN
Inventors: 毕凌锋; 杨瑞; 蔡书磊; 向儒龙; 石昂; 卢仕恭; 郝杰
Original assignee: Lixin Technology Kunshan Co ltd
Current assignee: Lixin Technology Kunshan Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-08-26
Anticipated expiration: 2031-12-30

Abstract

The utility model belongs to the technical field of the coating film tool, a tool is shielded to coating film is related to, include by the lower supreme tool lower cover that sets gradually down, the silica gel lower cover, shield the piece, silica gel upper cover and tool upper cover, the silica gel lower cover has a plurality of profile modeling holes that are used for fixing a position the product, the tool lower cover has the low groove that matches the silica gel lower cover profile, the silica gel upper cover is equipped with a plurality of under spacious trompils that are used for letting the product part expose, the tool upper cover has the upper groove that matches the silica gel upper cover profile and corresponds the last open hole that opens the position down, the tool lower cover is inhaled with tool upper cover mutual magnetism and is connected. The utility model discloses can utilize silica gel upper cover and silica gel lower cover to carry out more thorough coveing to the coating film part to compress tightly the coating film product through last positioning disk and lower compression leg, just so can only carry out the coating film operation to exposing the part, can not cause the damage to the product, guaranteed product coating film quality.

Description

Coating film shielding jig

Technical Field

The utility model relates to a coating film tool technical field, in particular to tool is shielded in coating film.

Background

A plurality of non-coating areas and elements on a circuit board need to be shielded, the problems of incomplete shielding and excessive shielding exist in conventional shielding, the relevant functional tests of products can be influenced by incomplete shielding, and the damage of the flexible circuit board circuit caused by excessive shielding risks can cause quality problems. Currently, for such component masking, SMT factories basically adopt a Pressure Sensitive Adhesive (PSA) masking method. However, System In a Package (SIP) components are In an irregular arc shape, and a jig made of a fully hard material cannot perfectly match the structure of each product, so that the product is damaged by slight extrusion. Because the fit clearance of the product is small, the problem of incomplete shielding exists, and the improvement of the yield of the product is restricted.

Therefore, there is a need for an improved shielding jig structure to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a coating film shields tool can form to SIP component product and shield completely, guarantees the product yield.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a coating film shielding jig comprises a jig lower cover, a silica gel lower cover, a shielding piece, a silica gel upper cover and a jig upper cover which are sequentially arranged from bottom to top, wherein the silica gel lower cover is provided with a plurality of profiling cavities for positioning a product, the jig lower cover is provided with a lower groove matched with the outline of the silica gel lower cover, the silica gel upper cover is provided with a plurality of lower open holes for exposing the local part of the product, and the jig upper cover is provided with an upper groove matched with the outline of the silica gel upper cover and an upper open hole corresponding to the position of the lower open hole; wherein, tool lower cover and tool upper cover magnetism inhale mutual absorption and be connected.

Specifically, be equipped with two in every profile modeling cavity and go up the draining hole, cover under the tool and be equipped with the lower draining hole that corresponds last draining hole position.

Specifically, the silica gel lower cover is equipped with a plurality of lower compression posts that penetrate lower positioning hole including being located the peripheral a plurality of positioning hole of profile modeling cavity in the lower recess, and the silica gel upper cover is equipped with a plurality of last positioning hole that correspond lower positioning hole position, is equipped with a plurality of last compression posts that penetrate upper positioning hole in the upper groove.

Furthermore, the four corners of the silica gel upper cover are provided with an upper special-shaped positioning hole and an upper fool-proof positioning hole, and the jig upper cover is provided with an upper fool-proof block matched with the upper fool-proof positioning hole.

Furthermore, special-shaped locating holes and lower fool-proof locating holes are arranged at four corners of the silica gel lower cover, and the jig lower cover is provided with lower fool-proof blocks matched with the lower fool-proof locating holes.

Specifically, one of the silica gel lower cover and the silica gel upper cover is provided with a clip-shaped groove surrounding all the profiling cavities, and the other is provided with a clip-shaped convex ridge matched with the clip-shaped groove.

Specifically, the three corners of the shielding sheet are respectively provided with an angle hole, the jig lower cover is provided with three lower through holes matched with the angle hole positions, the silica gel upper cover is provided with three upper through holes matched with the angle hole positions, and the angle holes, the lower through holes and the upper through holes are connected through positioning pins capable of penetrating through the silica gel lower cover.

Specifically, the lower jig cover is provided with a magnetic part in the part outside the lower groove, and the upper jig cover is provided with a magnetic part in the part outside the upper groove.

The utility model discloses technical scheme's beneficial effect is:

the utility model discloses can utilize silica gel upper cover and silica gel lower cover to carry out more thorough coveing to the coating film part to compress tightly the coating film product through last positioning disk and lower compression leg, just so can only carry out the coating film operation to exposing the part, can not cause the damage to the product, guaranteed product coating film quality.

Drawings

FIG. 1 is a perspective view of a film-coating shielding jig according to an embodiment;

FIG. 2 is an exploded view of a coating mask jig according to an embodiment;

FIG. 3 is a perspective view of the lower cover of the jig;

FIG. 4 is a perspective view of a silicone lower cover;

FIG. 5 is a perspective view of a shield plate;

FIG. 6 is a perspective view of the silicone cover;

fig. 7 is a perspective view of the jig upper cover.

The figures in the drawings represent:

1-a lower jig cover, 11-a lower groove, 12-a lower compression column, 121-a lower fool-proof block, 13-a lower oil leakage hole and 14-a lower through hole;

2-a lower silica gel cover, 21-a profiling cavity, 211-an upper oil drainage hole, 22-a lower positioning through hole, 221-a lower special-shaped positioning hole, 222-a lower fool-proof positioning hole and 23-a clip groove;

3-a silica gel upper cover, 31-a lower open hole, 32-an upper positioning through hole, 321-an upper special-shaped positioning hole, 322-an upper foolproof positioning hole, 33-a square-shaped convex ridge and 34-an upper through hole;

4-jig upper cover, 41-upper groove, 42-upper open hole, 43-upper compression column, 431-upper fool-proof block;

5-shielding piece, 51-gap, 52-angle hole;

6-products.

Detailed Description

The present invention will be described in further detail with reference to specific examples.

Example (b):

as shown in fig. 1 to 7, the utility model discloses a coating film shields tool, include by lower supreme tool lower cover 1 that sets gradually, silica gel lower cover 2, shield piece 5, silica gel upper cover 3 and tool upper cover 4, silica gel lower cover 2 has a plurality of profile modeling holes 21 that are used for fixing a position product 6, tool lower cover 1 has the low groove 11 that matches 2 outlines of silica gel lower cover, silica gel upper cover 3 is equipped with a plurality of lower open pores 31 that are used for letting the local product expose, tool upper cover 4 has the upper groove 41 that matches 3 outlines of silica gel upper cover and corresponds the upper open pore 42 that opens the pore 31 position down, tool lower cover 1 and tool upper cover 4 mutual magnetism are inhaled and are connected. The magnetic part can be fixed on the upper cover 4 of the jig and also can be fixed on the lower cover 1 of the jig.

When the tool is used, the lower groove 11 of the lower tool cover 1 faces upwards, the lower silica gel cover 2 is placed in the lower groove 11, the products 6 are placed at the position of the profiling cavity 21 one by one, the shielding sheet 5 is placed, the upper silica gel cover 3 is covered above the shielding sheet 5, then the upper tool cover 4 is buckled on the upper silica gel cover 3, the upper silica gel cover 3 and the upper tool cover 4 are limited by the lower groove 11, the lower tool cover 1 and the upper tool cover 4 are limited and fixed by the magnetic absorption piece, the upper silica gel cover 3 and the lower silica gel cover 2 are clamped by the lower tool cover 3 and the lower tool cover 4, so that the positions of the products 6 are stable, meanwhile, the shielding sheet 5 is arranged through the gap 51, so that the products 6 are divided into independent areas, the elasticity of the silica gel can enable the silica gel to be clung to the non-shielding position of the products 6 and the surface of the shielding sheet 5, the coating part of the products 6 can only be exposed, and thus the coating operation can be carried out only aiming at the exposed part, the product 6 can not be damaged, and the coating quality of the product is ensured. In the embodiment, the lower cover 4 of the jig is provided with a magnetic element (not shown) in a portion outside the lower groove 12, and the upper cover 4 of the jig is provided with a magnetic element (not shown) in a portion outside the upper groove 41, wherein the magnetic element can be, but not limited to, a strong magnet.

As shown in fig. 2 to 4, two upper oil drain holes 211 are provided in each of the profiling cavities 21, and the lower oil drain hole 13 corresponding to the upper oil drain hole 211 is provided on the jig lower cover 1. After the fluid for forming the coating is injected into the profiling cavity 21, a part of the fluid is left on the surface of the product 6 to form a film for sealing the surface of the product 6, and the redundant part of the fluid is discharged from a channel formed by the upper oil drainage hole 211 and the lower oil drainage hole 13, so that the phenomenon that the film thickness is too thick and materials are wasted is avoided.

As shown in fig. 2 to 4, the lower silica gel cap 2 includes a plurality of lower positioning through holes 22 located at the periphery of the profiling cavity 21, a plurality of lower press pillars 12 penetrating into the lower positioning through holes 22 are provided in the lower groove 11, a plurality of upper positioning through holes 32 corresponding to the lower positioning through holes 22 are provided in the upper silica gel cap 3, and a plurality of upper press pillars 43 penetrating into the upper positioning through holes 32 are provided in the upper groove 41. Because the upper silicon cover 3 and the lower silicon cover 2 are both flexible, a plurality of lower pressing columns 12 and upper pressing columns 43 are required to be used for local positioning, and the upper pressing columns 43 and the lower pressing columns 12 are also in opposite directions, so that the upper silicon cover 3 and the lower silicon cover 2 can be promoted to clamp the product 6 and the shielding plate 5.

As shown in fig. 2, 3, 4, 6 and 7, three upper irregular-shaped positioning holes 321 and one upper fool-proof positioning hole 322 are formed at four corners of the silicone upper cover 3, and the jig upper cover 4 has an upper fool-proof block 431 matching with the upper fool-proof positioning hole 322. The upper irregular-shaped positioning hole 321 and the upper fool-proof positioning hole 322 have a limiting function of the upper positioning through hole 32, but the structures are non-circular, but the structures of the two are different. Since the middle part of the silicon upper cover 3 is not a strict central symmetrical structure, the sealing fails once the cover is put back. Through preventing slow-witted setting and can avoiding the dislocation of silica gel upper cover 3 relative tool upper cover 4180 to lay, guarantee that silica gel face and product 6 are normally attached. The four corners of the silica gel lower cover 2 are provided with three lower special-shaped positioning holes 221 and one lower fool-proof positioning hole 222, the jig lower cover 1 is provided with a lower fool-proof block 121 matched with the lower fool-proof positioning hole 222, the lower fool-proof block 121 is used for being correspondingly inserted into the lower fool-proof positioning hole 222 during assembling, so that the jig lower cover 1 and the silica gel lower cover 2 can be accurately assembled correspondingly, and the reverse arrangement of the silica gel lower cover 1 can be avoided.

As shown in fig. 4 and 6, the silicone lower cover 2 is provided with a square-shaped groove 23 surrounding all the profiling cavities 21, and the silicone upper cover 3 is provided with a square-shaped ridge 33 matching with the square-shaped groove 23. The positions of the circular groove 23 and the circular ridge 33 can be reversed. This enables the alignment of the lower silicone rubber cover 2 and the upper silicone rubber cover 3.

As shown in fig. 3 to 6, three corners of the shielding sheet 5 are respectively provided with an angle hole 52, the jig lower cover 1 is provided with three lower through holes 14 matching the position of the angle hole 52, the silica gel upper cover 3 is provided with three upper through holes 34 matching the position of the angle hole 52, and the angle hole 52, the lower through holes 14 and the upper through holes 34 are connected by a positioning pin (not shown) capable of passing through the silica gel lower cover 2. The tool lower cover 1 can prevent slow-witted location to silica gel lower cover 2, shielding piece 5 and silica gel upper cover 3 simultaneously like this.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which all fall within the scope of the invention.

Claims

1. The utility model provides a coating film shields tool which characterized in that: the jig comprises a lower jig cover (1), a lower silica gel cover (2), a shielding piece (5), an upper silica gel cover (3) and an upper jig cover (4) which are sequentially arranged from bottom to top, wherein the lower silica gel cover (2) is provided with a plurality of profiling cavities (21) for positioning a product (6), the lower jig cover () is provided with a lower groove (11) matched with the outline of the lower silica gel cover (2), the upper silica gel cover (3) is provided with a plurality of lower open holes (31) for partially exposing the product (6), and the upper jig cover (4) is provided with an upper groove (41) matched with the outline of the upper silica gel cover (3) and an upper open hole (42) corresponding to the position of the lower open hole (31); the jig lower cover (1) and the jig upper cover (4) are connected in a magnetic attraction mode.

2. The plating film shielding jig of claim 1, wherein: each profiling cavity (21) is internally provided with a plurality of upper oil drainage holes (211), and the lower oil drainage hole (13) corresponding to the upper oil drainage hole (211) is formed in the jig lower cover (1).

3. The plating film shielding jig of claim 1, wherein: the lower silica gel cover (2) comprises a plurality of lower positioning through holes (22) which are located at the periphery of the profiling cavity (21), a plurality of lower pressing columns (12) which penetrate into the lower positioning through holes (22) are arranged in the lower groove (11), a plurality of upper positioning through holes (32) which correspond to the lower positioning through holes (22) are arranged on the upper silica gel cover (3), and a plurality of upper pressing columns (43) which penetrate into the upper positioning through holes (32) are arranged in the upper groove (41).

4. The coating shielding jig according to claim 3, wherein: the four corners of silicon rubber upper cover (3) are equipped with special-shaped locating hole (321) and last fool-proof locating hole (322), tool upper cover (4) have match go up fool-proof piece (431) of preventing fool-proof locating hole (322).

5. The coating shielding jig according to claim 3, wherein: the four corners of the silica gel lower cover (2) are provided with lower special-shaped positioning holes (221) and lower fool-proof positioning holes (222), and the jig lower cover (1) is provided with lower fool-proof blocks (121) matched with the lower fool-proof positioning holes (222).

6. The coating masking jig according to any one of claims 1 to 5, wherein: one of the silica gel lower cover (2) and the silica gel upper cover (3) is provided with a clip-shaped groove (23) surrounding all the profiling cavities (21), and the other is provided with a clip-shaped convex ridge (33) matched with the clip-shaped groove (23).

7. The plating film shielding jig of claim 1, wherein: the three corners of the shielding sheet (5) are respectively provided with an angle hole (52), the jig lower cover (1) is provided with three lower through holes (14) matched with the positions of the angle holes (52), the silicon upper cover (3) is provided with three upper through holes (34) matched with the positions of the angle holes (52), and the angle holes (52), the lower through holes (14) and the upper through holes (34) are connected through positioning pins penetrating through the silicon lower cover (2).

8. The coating masking jig according to any one of claims 1 to 5, wherein: the magnetic part is arranged in the part of the lower jig cover (1) outside the lower groove (11), and the magnetic part is arranged in the part of the upper jig cover (4) outside the upper groove (41).