CN114308449A

CN114308449A - Keycap paint spraying jig and using method thereof

Info

Publication number: CN114308449A
Application number: CN202011051268.XA
Authority: CN
Inventors: 戴兴泉; 周长水; 李炳缘
Original assignee: Suzhou New Continent Precision Technology Co ltd
Current assignee: Suzhou New Continent Precision Technology Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2022-04-12

Abstract

The key cap paint spraying jig comprises a connecting plate, the connecting plate comprises a plurality of sub-connecting plates which are mutually overlapped, each sub-connecting plate is provided with an installation boss for fixing a key cap, the installation boss is provided with a key cap installation groove, the installation boss is connected with the key cap through the key cap installation groove, the key cap installation groove comprises a side groove and a surface groove, the groove wall of the surface groove is provided with a clamping shaft, the key cap is provided with a clamping structure matched with the key cap installation groove, and the clamping structure comprises a clamping hook matched with the side groove and a clamping seat matched with the surface groove. The key cap paint spraying jig is fixedly connected with the key cap through the key cap mounting groove in the mounting boss, so that the whole key cap paint spraying jig is firmly fixed, the problem of inclination and falling off is not easy to generate in the paint spraying process, the paint spraying process is ensured to be smoothly carried out, the paint spraying reject ratio is reduced, and the production efficiency is improved.

Description

Keycap paint spraying jig and using method thereof

Technical Field

The invention relates to the technical field of key cap paint spraying on a keyboard, in particular to a key cap paint spraying jig and a using method thereof.

Background

When the key cap sprays paint, need install the key cap and spray paint on the anchor clamps of simulation keyboard. The existing jig for painting the keycaps comprises a substrate, wherein a connecting plate structure is arranged on the substrate, the connecting plate structure comprises a plurality of connecting plates which are spliced and laid on the substrate, bosses for installing the keycaps are arranged on the connecting plates, the rigidity of the keycaps and the boss are large, the elasticity of the keycaps and the boss are insufficient, the keycaps are all plastic products, the pressure is too large when painting, or the painting angle is not normal, the keycaps are damaged, or the painting precision is insufficient.

Moreover, when spraying paint to the key cap, the pressure of spraying paint is great, and it is not firm to fix between the anchor clamps of key cap and installation key cap for in-process key cap that sprays paint drops or the slope, influences the efficiency of spraying paint, increases the defective rate of production.

Therefore, a new technical solution is needed to solve the above problems.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and on one hand, the invention provides a keycap paint spraying jig which adopts the following technical scheme:

the utility model provides a key cap tool that sprays paint, its includes the connecting plate, the connecting plate includes a plurality of mutual overlap joint sub-connecting plate, every be provided with the installation base that is used for fixed key cap on the sub-connecting plate, be provided with the key cap mounting groove on the installation base, the installation base passes through the key cap mounting groove is connected with the key cap, the key cap with the installation base block is connected.

According to the preferable technical scheme, the connecting plates comprise a first sub-connecting plate, a second sub-connecting plate, a third sub-connecting plate, a fourth sub-connecting plate and a fifth sub-connecting plate, wherein the first sub-connecting plate and the second sub-connecting plate are in left-right lap joint, the fifth sub-connecting plate and the fourth sub-connecting plate are in left-right lap joint, the first sub-connecting plate and the fifth sub-connecting plate are in up-down lap joint, the second sub-connecting plate and the fourth sub-connecting plate are in up-down lap joint, and the second sub-connecting plate and the fourth sub-connecting plate are in left-right lap joint with the third sub-connecting plate respectively.

Preferably, two sub-connecting plates are overlapped, the edge of one sub-connecting plate is provided with a convex edge, the thickness of the convex edge is smaller than that of the side wall of the sub-connecting plate, the edge of the other sub-connecting plate is provided with a groove matched with the convex edge, and the convex edge is embedded into the groove, so that the surfaces of the two sub-connecting plates are basically flush.

Preferably, one surface of the connecting plate, which is provided with the mounting boss, is provided with a paint blocking strip, the paint blocking strip is wound on the connecting plate for one circle, the part of the connecting plate, which is positioned at the inner side of the paint blocking strip for one circle, forms a paint spraying area, the part of the connecting plate, which is positioned at the outer side of the paint blocking strip for one circle, forms a fixing area,

preferably, the mounting boss is disposed within the painting zone,

preferably, the height of the paint stop strip is lower than that of the mounting boss.

Preferably, a plurality of stacking columns are arranged in the fixing area of the connecting plate, the stacking columns are close to the edge of the connecting plate, and the stacking columns are uniformly distributed around the connecting plate;

preferably, the total height of the mounting boss and the keycap mounted on the mounting boss is smaller than the height of the stacking column;

preferably, the number of the stacking columns is equal to or greater than three.

Preferably, a circle of flanges are arranged at the edge of the connecting plate, the flanges extend from the connecting plate to the direction back to the mounting boss, a substrate is accommodated in the circle of flanges, and the height of each flange is greater than the thickness of the substrate.

Preferably, the connecting plate is provided with a plurality of mounting bosses which are arranged on the connecting plate in multiple rows, each row comprises a plurality of mounting bosses, and upper paint through holes are formed between every two adjacent mounting bosses in each row and between every two adjacent rows of mounting bosses;

preferably, the base plate is provided with a lower paint penetration hole which is opposite to the upper paint penetration hole, the shape of the lower paint penetration hole is consistent with that of the upper paint penetration hole, the aperture size of the lower paint penetration hole is larger than that of the upper paint penetration hole,

preferably, go up to pass through the lacquer hole have certainly the connecting plate orientation the pore wall that the base plate direction extends, the pore wall of going up to pass through the lacquer hole hold in it is downthehole to pass through lacquer down on the base plate, go up to pass through the lacquer hole with it passes through down to pass through the pore wall intercommunication and form and lead the lacquer passageway.

Preferably, the connecting plate is integrally formed with a disassembling protection sheet which is used for abutting against a disassembling table supporting part when the connecting plate is disassembled, the disassembling protection sheets are arranged at four top corners of the connecting plate,

preferably, the surface of the disassembling protection sheet is substantially flush with the surface of the connecting plate, a circle of limiting groove is arranged at the edge of the disassembling protection sheet, and the depth of the limiting groove is smaller than the thickness of the connecting plate.

Preferably, be provided with the key cap on the installation base and dodge the groove, the key cap dodges the groove and sets up between two parties the upper surface of installation base, the key cap dodges the groove certainly upper surface undercut forms the trough-shaped, have on the key cap with the key cap dodges groove complex arch.

Preferably, the bottom of the keycap avoiding groove on the mounting boss is provided with a connecting column, one end of the connecting column is connected with the bottom of the keycap avoiding groove, the other end extends towards the direction opposite to the direction of the groove opening of the keycap avoiding groove,

preferably, the side wall of the connecting column is provided with a plurality of guide strips, the guide strips are distributed in parallel along the central axis direction of the connecting column, the connecting column is aligned and inserted with the small positioning hole on the substrate, the connecting column is in interference fit with the small positioning hole on the substrate,

preferably, the length of the connecting column is greater than the thickness of the substrate, one end of the connecting column, which is connected with the bottom of the keycap avoiding groove, is accommodated in the small positioning hole, the other end of the connecting column extends outwards from the small positioning hole, the extending end part is fixed on the surface of the substrate in a hot melting mode, the extending end part is formed into a flat cake-shaped end part in a hot melting mode, and the diameter of the flat cake-shaped end part is greater than the inner diameter of the small positioning hole.

Preferably, the connecting plate is further provided with a positioning column, the positioning column comprises a through hole formed in the connecting plate, the through hole is provided with a hole wall extending from the connecting plate to a first direction and a second direction, the through hole and the hole wall form a positioning hole of the positioning column, the first direction is opposite to the second direction, and the first direction and the second direction are both perpendicular to the plate surface of the connecting plate,

preferably, a cover plate is arranged at one end of the through hole wall, the cover plate is positioned at one side of the connecting plate provided with the mounting boss, a central hole is formed in the cover plate and communicated with the through hole, the through hole wall and the cover plate form the positioning column on the connecting plate,

preferably, the mounting height of the cover plate is greater than the height of the mounting boss,

preferably, the other end of the wall of the through hole penetrates through a main positioning hole in the substrate, and the height of the end part of the through hole is smaller than the thickness of the substrate or is consistent with the thickness of the substrate;

preferably, the connecting plate is provided with at least two positioning columns, and the two positioning columns are respectively arranged at two ends of the connecting plate.

Preferably, still be provided with a plurality of preformed holes on the installation boss, the pore wall of going up the preformed hole certainly installation boss surface downwardly extending is in order to run through the lower preformed hole on the base plate, the pore wall of going up the preformed hole hold in the preformed hole down, the aperture of going up the preformed hole is less than the aperture of preformed hole down.

Preferably, the installation boss is further provided with a key cap installation groove, the key cap installation groove comprises a side groove and a surface groove, and the key cap and the installation boss are connected in a clamping manner through the side groove and the surface groove;

preferably, the side groove is formed on the surface of the mounting boss and is formed along the side wall of the mounting boss, the height of a side wall, superposed with the side wall of the mounting boss, of the side groove is smaller than that of the mounting boss, a concave hole is formed in the side wall, and the concave hole is clamped with the reinforcing body of the clamping hook on the keycap;

preferably, the surface groove is formed in the surface of the mounting boss, a clamping shaft is arranged on the groove wall of the surface groove, the mounting height of the clamping shaft is lower than the upper surface of the mounting boss, and the clamping shaft is clamped with the clamping seat on the keycap.

Preferably, the mounting boss is provided with two side grooves, two surface grooves and three upper preformed holes which are arranged in a triangular manner,

preferably, the side grooves and the surface grooves are provided on the peripheries of the three upper prepared holes.

In another aspect, the invention further provides a use method of the keycap paint spraying jig, which includes:

the keycap paint spraying jig is fixedly connected on the substrate,

installing the keycap on the installation boss of the keycap paint spraying jig,

a press column of an automatic machine table is arranged in a positioning hole of a positioning column of the keycap paint spraying jig,

the side, provided with the mounting boss, of the keycap paint spraying jig faces paint spraying equipment, and paint is sprayed on the surface of the keycap by the paint spraying equipment;

and after the surface of the keycap is painted, the keycap is detached from the mounting boss, and the substrate is detached from the keycap painting jig.

Above-mentioned technical scheme is further, it is right to utilize paint spraying apparatus the key cap sprays paint, specifically includes:

the spray head of the paint spraying equipment is aligned to the side, provided with the mounting boss, of the key cap paint spraying jig, when paint is sprayed, negative pressure is formed on the side, provided with the substrate, of the key cap paint spraying jig, and the atomized paint which is not attached to the key cap is sucked out through the upper paint through holes of the key cap paint spraying jig by the negative pressure.

Further, will the base plate with the keycap jig split specifically includes:

the key cap paint spraying jig is placed on four ejector pins of a machine table in a mode that a substrate faces upwards, the four ejector pins are respectively correspondingly supported with the disassembling protection sheets on four corners of the key cap paint spraying jig,

and applying impact force from the upper part of the substrate of the key cap paint spraying jig, wherein the ejector pin penetrates through the disassembled protective sheet, and the key cap paint spraying jig is separated from the substrate.

Compared with the prior art, the invention has one or more of the following beneficial effects:

1. the key cap paint spraying jig is fixedly connected with the key cap through the key cap mounting groove in the mounting boss, so that the whole key cap paint spraying jig is firmly fixed, the problem of inclination and falling off is not easy to generate in the paint spraying process, the paint spraying process is ensured to be smoothly carried out, the paint spraying reject ratio is reduced, and the production efficiency is improved.

2. The key cap paint spraying jig is provided with the paint penetrating holes, the atomized paint which is not attached to the key cap is sucked away from the paint penetrating holes by negative pressure, and the hole walls of the paint penetrating holes penetrate through the lower paint penetrating holes in the substrate, so that the substrate cannot be polluted by the atomized paint.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic perspective view of a keycap painting jig according to an embodiment of the present invention, wherein a substrate is nested on the back of the keycap painting jig (the substrate is on the back of the jig, and the substrate is not shown due to the angle problem);

FIG. 2 is a rear view of FIG. 1 at an angle showing the base plate nested behind the key cap painting jig;

FIG. 3 is an exploded view of the key cap paint spraying jig obtained after the key cap paint spraying jig is detached from the substrate;

FIG. 4 is a schematic plan view of a key cap painting jig according to an embodiment of the invention;

FIG. 5 is an exploded view of the keycap painting jig of FIG. 1, wherein the web of the keycap painting jig is broken down into five sub-webs;

FIG. 6 is a schematic bottom view of the key cap painting jig of FIG. 4;

FIG. 7 is an enlarged view of a portion of the mounting boss of FIG. 1 at section A;

fig. 8 is a partially enlarged view of a portion B in fig. 7;

FIG. 9 is a perspective view of a mounting boss according to one embodiment of the present invention;

fig. 10 is a partially enlarged view of a portion C in fig. 3;

FIG. 11 is a schematic perspective view of the connecting column of the present invention mounted on the connecting plate;

FIG. 12 is a schematic perspective view of the connecting column of the present invention;

FIG. 13 is a schematic perspective view of a key cap of the present invention in one embodiment;

FIG. 14 is a schematic perspective view of the key cap mounted on the mounting boss.

Wherein, 100-connecting plate, 101-first sub-connecting plate, 102-second sub-connecting plate, 103-third sub-connecting plate, 104-fourth sub-connecting plate, 105-fifth sub-connecting plate, 110-convex edge; 120-grooves; 130-paint stop strip; 140-stacking columns; 150-a rib; 160-paint through holes; 170-disassembling the protective sheet; 171-a limiting groove; 180-positioning columns; 181-cover plate;

200-installation boss, 210-key cap installation groove, 211-side groove; 212-surface grooves; 213-a clamping shaft; 220-key cap avoidance groove; 221-a first avoidance hole; 222-a second avoidance slot; 223-connecting column; 224-a guide bar; 230-upper preformed hole;

300-a keycap; 310-a bump; 320-a snap-fit structure; 321-hook; 3211-a support column; 3212-top plate; 3213-a reinforcement; 322-a card seat; 3221-seat hole;

400-a substrate; 410-lower lacquer through holes; 420-small positioning holes; 430-main positioning hole; 440-lower preformed hole.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The gist of the present invention will be further explained below with reference to the accompanying drawings and examples.

Example (b):

referring to fig. 1 to 12, aiming at the problems in the prior art, the invention provides a keycap paint spraying jig, which includes a connecting plate 100, where the connecting plate 100 includes a plurality of sub-connecting plates that are overlapped with each other, each sub-connecting plate is provided with a mounting boss 200 for fixing a keycap, the mounting boss 200 is provided with a keycap mounting groove 210, the mounting boss 200 is connected with the keycap through the keycap mounting groove 210, and the keycap 300 is connected with the mounting boss 200 in a clamping manner.

In one embodiment, referring to fig. 5, the connection board 100 of the present invention may be divided into a first sub-connection board 101, a second sub-connection board 102, a third sub-connection board 103, a fourth sub-connection board 104 and a fifth sub-connection board 105, wherein the first sub-connection board 101 and the second sub-connection board 102 are overlapped left and right, the fifth sub-connection board 105 and the fourth sub-connection board 104 are overlapped left and right, the first sub-connection board 101 and the fifth sub-connection board 105 are overlapped up and down, the second sub-connection board 102 and the fourth sub-connection board 104 are overlapped up and down, and the second sub-connection board 102 and the fourth sub-connection board 104 are overlapped left and right with the third sub-connection board 103, respectively. The base plate is embedded in the connecting plate formed by splicing the five sub-connecting plates, the plurality of sub-connecting plates formed after the connecting plate is split are independently processed, the overall precision can be improved, and the method has a precision advantage compared with the original large plate overall processing.

In one embodiment, referring to fig. 9, two sub-connection boards overlap each other in the present invention, wherein the edge of one sub-connection board has a convex edge 110, the thickness of the convex edge 110 is smaller than the thickness of the side wall of the sub-connection board, and the edge of the other sub-connection board has a groove 120 matching with the convex edge 110, and the convex edge 110 is embedded in the groove 120, so that the surfaces of the two sub-connection boards are substantially flush. The mode of mutual lap joint can effectively ensure the sealing performance of the surface of the connecting plate, and the vaporous paint can not permeate into the substrate at the back of the connecting plate through the connecting gap of the two sub-connecting plates, thereby ensuring the cleanliness of the substrate and prolonging the service life of the substrate.

In one embodiment, referring to fig. 1 and 4, a paint blocking strip 130 is disposed on one side of the connecting plate 100 where the mounting boss 200 is disposed, the paint blocking strip 130 is wound in a circle on the connecting plate 100, a portion of the connecting plate 100 located inside the circle of the paint blocking strip 130 forms a paint spraying area, a portion of the connecting plate 100 located outside the circle of the paint blocking strip 130 forms a fixing area, and the mounting boss 200 is disposed in the paint spraying area. Keep off lacquer strip 130 and can divide into paint spraying area and fixed area with connecting plate 100 around the round on connecting plate 100, when the shower nozzle of paint spraying equipment sprays paint for key cap 300 on the installation base plate 200, vaporific lacquer in the shower nozzle can not reach the fixed area, it only sprays paint in the paint spraying area, and the fixed area can be fixed with the board, guarantee that the key cap paint spraying tool can not take place to remove at the in-process that sprays paint, and nested base plate also can play the effect of support to the key cap paint spraying tool in the key cap paint spraying tool, this kind of supporting role can make the key cap paint spraying tool withstand the paint pressure of the in-process that sprays paint, guarantee the precision that the key cap sprays paint.

In one embodiment, referring to fig. 6, the height of the paint stop strip 130 of the present invention is lower than the height of the mounting boss 200. The function of the paint blocking strip comprises that the atomized paint sprayed by the paint spraying equipment is blocked from reaching the fixed area of the connecting plate, so that the paint blocking strip does not need too high height, and the production requirement is met as long as the paint blocking strip can block the atomized paint from spreading.

In one embodiment, with continued reference to fig. 1, the paint stop strip 130 extends vertically away from the surface of the connection plate 100. The paint blocking strip 130 comprises four sections, a circle of the paint blocking strip 130 is wound on the connecting plate 100, and the paint spraying area is formed by the paint blocking strip 130 on the surface of the connecting plate 100 in an enclosing mode. The four paint blocking strips 130 are not connected, or the four paint blocking strips 130 are all connected end to end in sequence, or two or three adjacent paint blocking strips 130 are connected. A plurality of stacking columns 140 are arranged in the fixing area of the connecting plate 100, the stacking columns 140 are close to the edge of the connecting plate 100, and the stacking columns 140 are uniformly distributed around the connecting plate 100. The total height of the mounting boss 200 and the key cap 300 mounted on the mounting boss 200 is less than the height of the stacking column 140. The number of the stacking columns 140 is equal to or greater than three. Still be provided with a plurality of recesses in the fixed area of connecting plate 100, the recess is for certainly connecting plate 100 edge to the inside sunken rectangular channel or the semicircular groove of connecting plate 100. Still be provided with the dismantlement in the fixed area of connecting plate 100 be used for during connecting plate 100 with disassemble the dismantling protection sheet 170 of a supporting part conflict, dismantle protection sheet 170 sets up four apex angle departments of connecting plate 100, disassemble the surface of protection sheet 170 with the surface parallel and level of connecting plate 100 basically, the edge of dismantling protection sheet 170 is provided with round spacing groove 171, the degree of depth of spacing groove 171 is less than the thickness of connecting plate 100.

In one embodiment, referring to fig. 1, a plurality of stacking columns 140 are disposed in the fixing region of the connecting plate 100 according to the present invention, the stacking columns 140 are near the edge of the connecting plate 100, and the plurality of stacking columns 140 are uniformly distributed around the connecting plate 100; the total height of the mounting boss 200 and the keycap mounted on the mounting boss 200 is less than the height of the stacking column 140. The stacking column 140 extends from the plate surface of the connecting plate 100 in a direction vertically away from the connecting plate 100. The stacking column 140 is in a long strip shape, a circle of the stacking column 140 is wound around the plate surface of the connecting plate 100, and the mounting boss 200 is arranged at the inner side of the circle of the stacking column 140. The stacking columns 140 are disposed on the surface of the connecting plate 100 at intervals, and a circle of the stacking columns 140 is wound on the surface of the connecting plate 100. Connecting plate 100 is the rectangular shaped plate, is provided with four on two long edges of this rectangular shaped plate respectively pile post 140, this four pile post 140 along the long edge direction evenly distributed of this rectangular shaped plate, be provided with two on two short edges of this rectangular shaped plate respectively pile post 140, this two pile post 140 along the short edge direction evenly distributed of this rectangular shaped plate. The stacking column is multiple the keycap paint spraying jigs can be supported and separated when being stacked and placed, the keycaps are guaranteed to be mounted on the mounting bosses and cannot rub the bottom of another keycap paint spraying jig, or the bottom of the substrate nested in another keycap paint spraying jig is not rubbed, and at the moment, the top of the stacking column is supported to the bottom of the substrate, and a safety space is lifted up for the mounting bosses provided with the keycaps.

In one embodiment, the number of the stacking columns 140 is greater than or equal to three, the stacking columns play a role of supporting and separating on the connecting plate, so that the supporting is stable enough, therefore, two or one stacking column has the hidden trouble of insufficient supporting stability, and two large stacking columns occupy space, so that the scheme of a plurality of small stacking columns is adopted, the supporting stability is ensured, and the stacking columns can be dispersed to occupy no space. Set up the pile post on the fixed area, pile up the edge that the post is close to the tool, play the supporting role when it is used for the coincide tool, prevent the upper and lower tool contact of coincide, during the coincide, between two adjacent tools, go up tool aluminum plate and lower tool and support the height that the clearance between the boss is greater than the key cap, key cap contact wear on the tool of preventing upper and lower coincide.

In one embodiment, referring to fig. 1, the edge of the connecting plate 100 of the present invention is provided with a ring of ribs 150, the ribs 150 extend from the connecting plate 100 in a direction away from the mounting boss 200, the ring of ribs 150 accommodates a substrate 400 therein, and the height of the ribs 150 is greater than the thickness of the substrate 400. The rib of the invention encloses the back of the keycap paint spraying jig into an accommodating groove which can accommodate the substrate, the accommodating groove can play a role in limiting when a plurality of jigs are stacked, when the keycap paint spraying jig is fixed on a machine table, the keycap paint spraying jig is supported by the substrate, the plastic keycap paint spraying jig can be ensured not to deform, and the same rib can also protect the substrate from abrasion, thereby prolonging the service life of the substrate.

In one embodiment, referring to fig. 1 to 5 and 7, the connecting plate 100 of the present invention is provided with a plurality of mounting bosses 200, the mounting bosses 200 are arranged on the connecting plate 100 in a plurality of rows, each row includes a plurality of mounting bosses 200, wherein upper paint through holes 160 are formed between two adjacent mounting bosses 200 in each row and between two adjacent rows of mounting bosses 200; be provided with on the base plate 400 with go up the lower hole 410 that passes through lacquer that passes through the lacquer hole 160 counterpoint set up, down pass through the lacquer hole 410 the shape with it is unanimous to go up the shape of passing through lacquer hole 160, the aperture size of passing through lacquer hole 410 down is greater than go up the aperture size of passing through lacquer hole 160, it has certainly to go up pass through lacquer hole 160 the connecting plate 100 orientation the pore wall that the base plate 400 direction extends, go up pass through lacquer hole 160 the pore wall hold in the lower hole 410 that passes through lacquer on the base plate 400, go up pass through lacquer hole 160 with pass through down pass through lacquer hole 410 the pore wall intercommunication forms and leads the lacquer passageway. The upper paint-permeable hole can guide the redundant atomized paint out during paint spraying, when the keycap is painted from the upper side of the front side of the jig, negative pressure is arranged below the substrate, the upper paint-permeable hole can release the sprayed paint, the atomized paint is sucked away by the negative pressure through the upper paint-permeable hole in the connecting plate, atomized paint rebounding is reduced, and the paint spraying uniformity of the keycap is improved.

In one embodiment, the upper paint-through holes 160 include one or more of round holes, oblong holes, and rectangular holes. The upper paint through hole 160 is a long circular hole, a reinforcing connecting plate is arranged on the hole wall of the long circular hole, the center positions of two long edges of the long circular hole are connected through the reinforcing connecting plate, and the reinforcing connecting plate is arranged at one end, deviating from the mounting boss, of the upper paint through hole 160. The end of the upper paint hole 160 facing away from the mounting boss is substantially flush with the side of the substrate 400 facing away from the mounting boss. A gap is formed between the hole wall of the lower paint penetration hole 410 of the substrate 400 and the hole wall of the upper paint penetration hole 160, and the width range of the gap is 1mm-2 mm.

In one embodiment, referring to fig. 1 to 5, the connecting plate 100 of the present invention is integrally formed with a release protection sheet 170 for abutting against a support portion of a release table when the connecting plate 100 is released, the release protection sheets 170 are disposed at four corners of the connecting plate 100, a surface of the release protection sheet 170 is substantially flush with a surface of the connecting plate 100, an edge of the release protection sheet 170 is provided with a circle of limiting grooves 171, the limiting grooves 171 are recessed downward from the surface of the connecting plate 100 to form grooves, and a depth of the limiting grooves 171 is smaller than a thickness of the connecting plate 100. The width of the limiting groove 171 is 1 mm; the outer diameter of the limiting groove 171 is 1 cm. The connecting plate 100 is a strip-shaped plate, four corners of the strip-shaped plate are respectively provided with a piece of the protective dismantling plate 170, and the distance range from the edge of the limiting groove 171 of the protective dismantling plate 170 to the edge of the connecting plate 100 is 0.5cm-1 cm. When the key cap paint spraying jig is disassembled, the key cap paint spraying jig is placed on four ejector pins of a machine table in a mode that a base plate faces upwards, the four ejector pins are respectively supported corresponding to the disassembling protection plates on four corners of the key cap paint spraying jig, then impact force is applied to the upper portion of the base plate of the key cap paint spraying jig, the ejector pins penetrate through the disassembling protection plates, and the key cap paint spraying jig is separated from the base plate. In the disassembling process of the jig, the disassembling protection sheet plays a supporting role, so that when a certain sub-connecting plate is disassembled, the position of one of 4 corners of the base plate is in a suspended state, the base plate is prevented from deforming, and the base plate is easy to deform due to downward disassembling pressure; when the jig is disassembled, the ejector pin props against the disassembling protection sheet and cuts off the disassembling protection sheet, and the jig is disassembled while the substrate is protected (the substrate is prevented from deforming); and the disassembly protection plate is arranged on the connecting plate and is integrated with the jig, so that no leak exists, paint leakage can be prevented, and the disassembly protection plate is arranged in a fixing area of the connecting plate.

In an embodiment, referring to fig. 7 and 8, a key cap avoiding groove 220 is formed in the mounting boss 200, the key cap avoiding groove 220 is centrally formed in the upper surface of the mounting boss 200, the key cap avoiding groove 220 is recessed downward from the upper surface to form a groove shape, a protrusion 310 matched with the key cap avoiding groove 220 is formed in the key cap, and the key cap is positioned by matching the protrusion with the key cap avoiding groove.

In an embodiment, with continued reference to fig. 7 and 8, the key cap avoidance groove 220 includes a first avoidance hole 221, and a second avoidance groove 222 communicated with the first avoidance hole 221, the first avoidance hole 221 and the second avoidance groove 222 are coaxially disposed, the first avoidance hole 221 has a hole diameter larger than the inner diameter of the second avoidance groove 222, the first avoidance hole 221 has one end flush with the upper surface of the mounting boss 200. Promptly first dodge the hole with the second dodges the flute and forms a ladder groove, and the spacing effect in this kind of ladder groove is better, and positioning accuracy improves.

In one embodiment, the first avoiding hole 221 is a through hole, the depth of the first avoiding hole 221 is not less than 1mm, and the inner diameter of the first avoiding hole 221 is 0.5-0.7 cm. First dodge hole 221 with the second dodges groove 222 and is linked together, first dodge hole 221 have first end and with the second end that the first end is relative, first end with the upper surface parallel and level of installation boss 200, the second end with the second dodges the groove top in groove 222 and is connected. The inner diameter of the second avoiding groove 222 is smaller than the aperture of the first avoiding hole 221, the plane of the groove top of the second avoiding groove 222 coincides with the plane of the end face of the second end of the first avoiding hole 221, and the second end of the first avoiding hole 221 is connected with the groove top of the second avoiding groove 222 through a connecting plate. The depth of the second avoiding groove 222 is not less than 1mm, and the inner diameter of the second avoiding groove 222 is 0.6-0.4 cm.

In one embodiment, the depth of the key cap avoiding groove 220 is greater than or equal to 2mm, and if the depth of the key cap avoiding groove is insufficient, the key cap may slide in the key cap avoiding groove, so that the depth is also an important index for positioning and limiting.

In an embodiment, referring to fig. 3, 6 and 9, a connection column 223 is disposed at the bottom of the keycap avoiding groove 220 on the installation boss 200, one end of the connection column 223 is connected to the bottom of the keycap avoiding groove 220, the other end extends in a direction opposite to the direction of the notch of the keycap avoiding groove 220, a plurality of guide bars 224 are disposed on the side wall of the connection column 223, the plurality of guide bars 224 are distributed in parallel along the central axis direction of the connection column 223, the connection column 223 is aligned and inserted to the small positioning hole 420 on the substrate 400, and the connection column 223 is in interference fit with the small positioning hole 420 on the substrate 400. Of course, for the fixture to be more firmly fixed with the substrate, the connection post 223 may be disposed not only behind the key cap avoiding groove 220 of the installation boss 200, but also at the back of the fixture connection plate. The guide strip on the connecting column can play a guiding role, and when the small positioning holes on the connecting column and the substrate are aligned and inserted, the guide strip can be scraped by the small positioning holes on the substrate in the inserting process to form interference fit. The spliced pole on the tool is fixed tool and base plate, has guaranteed the base plate and to the holistic supporting role of tool, makes the base plate with the tool is whole more stable, and the holistic stability of tool when further guaranteeing to spray paint guarantees the precision of spraying paint, improves the yields and the machining efficiency of processing.

In an embodiment, referring to fig. 6, the length of the connecting column 223 of the present invention is greater than the thickness of the substrate 400 (the substrate is not shown in fig. 6, and thus cannot be compared from the drawings, and fig. 6 is only a schematic view, which is not to be construed as a limitation of the present invention), one end of the connecting column 223 connected to the bottom of the key cap avoiding groove 220 is accommodated in the small positioning hole 420, the other end of the connecting column 223 extends outward from the small positioning hole 420, the extending end is thermally fused to the surface of the substrate 400, and the extending end is thermally fused to form a flat-pancake-shaped end, and the diameter of the flat-pancake-shaped end is greater than the inner diameter of the small positioning hole 420. The end parts of the connecting columns are hot-melted into a flat cake shape, so that the fixing degree of the jig and the substrate is further ensured, and the stability is ensured.

In an embodiment, the connecting plate 100 of the invention has a first plate surface and a second plate surface, the first plate surface and the second plate surface are arranged oppositely, the first plate surface is provided with an installation boss 200 for fixing the keycap 300, the second plate surface is provided with a connecting column 223, one end of the connecting column 223 is connected with the connecting plate 100, the other end extends in a direction away from the first plate surface, and the connecting column 223 is inserted in alignment with the small positioning hole 420 on the substrate 400. The side wall of the connecting column 223 is provided with a plurality of guide strips 224, the plurality of guide strips 224 are distributed in parallel along the central axis direction of the connecting column 223, and the connecting column 223 is in interference fit with the small positioning hole 420 on the substrate 400; the length of the connection posts 223 is greater than the thickness of the substrate 400. The guide bars 224 extend from one end of the connecting column 223 connected with the keycap avoiding groove 220 to the middle of the connecting column 223, and the guide bars 224 are uniformly distributed on the side wall of the connecting column 223 at intervals. Be provided with the key cap on the installation base 200 and dodge groove 220, the tank bottom that the key cap on the installation base 200 dodged groove 220 is provided with spliced pole 223, spliced pole 223 one end with the key cap dodges the tank bottom of groove 220 and links to each other, the other end court with the key cap dodges the opposite direction of notch direction of groove 220 and extends. The spliced pole 223 with the key cap dodges the one end that groove 220 tank bottom links to each other and holds in the aperture 420, the other end of spliced pole 223 certainly aperture 420 stretches out outward, and this overhanging tip hot melt is fixed base plate 400 surface, this overhanging tip is formed flat cake form tip by the hot melt, and the diameter of this flat cake form tip is greater than aperture 420 internal diameter. The connecting column 223 is arranged at the center of the bottom of the keycap avoiding groove 220; the outer diameter of the connecting column 223 may be between 1.8mm and 2.5 mm.

In an embodiment, referring to fig. 1 to 5, the connection plate 100 of the present invention is further provided with a positioning column 180, the positioning column 180 includes a through hole formed on the connection plate 100, the through hole has a hole wall extending from the connection plate 100 to a first direction and a second direction simultaneously, the first direction is opposite to the second direction, and the first direction and the second direction are both perpendicular to the plate surface of the connection plate 100. A cover plate 181 is arranged at one end of the through hole wall, the cover plate 181 is positioned at one side of the connecting plate 100 where the mounting boss 200 is arranged, a central hole is formed in the cover plate 181 and communicated with the through hole, and the through hole wall and the cover plate 181 form the positioning column 180 on the connecting plate 100. The positioning column penetrates through a main positioning hole on the substrate, which corresponds to the positioning column, and the main positioning hole is clamped on the periphery of the positioning column. Can carry out the direct positioning to the reference column on the key cap paint spraying tool through the compression leg on the automatic machine when spraying paint, prevent that the locating lever from wearing and tearing aluminum plate, extension aluminum plate's life.

In an embodiment, the mounting height of the cover plate 181 is greater than the height of the mounting boss 200, which substantially ensures the positioning accuracy when the press pillar on the machine directly positions the positioning post on the key cap paint spraying jig, because the press pillar is inserted into the hole of the positioning post, if the hole of the positioning post is too shallow, the jig may deflect during the paint spraying process, resulting in an insecure fixation. The cover plate is provided with a center hole, the center hole is communicated with the through hole, so that the inserting condition of the compression column can be seen from the center hole of the cover plate, the installation is further confirmed to be in place, and the reject ratio caused by poor installation is reduced.

In one embodiment, the end of the through hole wall not provided with the cover plate 181 penetrates through the main positioning hole 430 of the substrate 400, and the height of the end of the through hole wall not provided with the cover plate 181 is smaller than the thickness of the substrate 400 or is consistent with the thickness of the substrate 400. Therefore, the main positioning hole of the substrate can be sleeved on the periphery of the hole wall of the positioning column, and the main positioning hole of the substrate is protected from being abraded by the pressing column of the automatic equipment.

In an embodiment, referring to fig. 3, at least two positioning pillars 180 are disposed on the connecting plate 100 of the present invention, and the two positioning pillars 180 are disposed at two ends of the connecting plate 100 respectively. Fixed stationarity of tool can be guaranteed to two reference columns, and the reference column is with automation equipment's compression leg complex, consequently also considers with automation equipment's compression leg quantity, moreover, preferably two the reference column sets up respectively the both ends of connecting plate, and two reference columns are not on a water flat line, and two reference columns are asymmetric in the both sides of connecting plate promptly.

In one embodiment, the positioning column 180 is a hollow cylinder, and an opening is formed at one end of the through hole wall in the first direction, the opening is communicated with the through hole, and the fixing column of the automation equipment is accommodated in the through hole from the opening. The main positioning hole 430 on the substrate 400 is located at the edge of the substrate 400, the inner diameter of the main positioning hole 430 is larger than the outer diameter of the through hole wall, and the end surface of one end of the main positioning hole 430, which is far away from the mounting boss 200, is substantially flush with the end surface of the through hole wall of the positioning column 180 in the second direction. The connecting plate 100 is at least provided with two positioning columns 180, and the two positioning columns 180 are respectively arranged at two ends of the connecting plate 100. The two positioning columns 180 are diagonally distributed on the connecting plate 100.

In an embodiment, referring to fig. 7, the mounting boss 200 of the present invention is further provided with a plurality of upper preformed holes 230, the hole walls of the upper preformed holes 230 extend downward from the surface of the mounting boss 200 to penetrate through the lower preformed holes 440 on the substrate 400, the hole walls of the upper preformed holes 230 are accommodated in the lower preformed holes 440, and the hole diameter of the upper preformed holes 230 is smaller than the hole diameter of the lower preformed holes 440. Go up preformed hole and lower preformed hole and can expose lacquer, and when spraying paint, the tool below forms the negative pressure, and the negative pressure can further fix the key cap on the installation boss through last preformed hole and lower preformed hole.

In one embodiment, referring to fig. 7 and 8, a key cap mounting groove 210 is further disposed on the mounting boss 200, the key cap mounting groove 210 includes a lateral groove 211 and a surface groove 212, and the key cap 300 is connected with the mounting boss 200 through the lateral groove 211 and the surface groove 212 in a snap-fit manner; the side recess 211 is seted up the surface of installation base 200, just the side recess 211 is followed the lateral wall of installation base 200 is seted up, side recess 211 with the height of a lateral wall of the coincidence of the lateral wall of installation base 200 is less than the height of installation base 200, this kind of difference in height make things convenient for the fixed screens of key cap and installation base more, the installation of being convenient for, also be convenient for disassemble, and be provided with the shrinkage pool on this lateral wall, the shrinkage pool cooperatees with the reinforcement 3213 of pothook 321 on the key cap 300, the reinforcement 3213 card of pothook 321 is established in the shrinkage pool.

In an embodiment, with reference to fig. 6, the surface groove 212 is formed on the surface of the mounting boss 200, a clamping shaft is disposed on a wall of the surface groove 212, a mounting height of the clamping shaft is lower than an upper surface of the mounting boss 200, the clamping shaft and the clamping seat on the key cap are aligned and mounted to ensure connection and fixation, and the clamping shaft and the clamping seat are matched to allow a slight rotation angle, so that the design is more reasonable, an error buffer is reserved, that is, the rotation within the deviation angle does not affect the painting precision, and the connection is relatively rigid, so that the key cap is not easily damaged due to the connection mode allowing slight deflection. And the clamping shaft clamping seat is connected to prevent paint from flowing into the seat hole of the clamping seat, abnormal sound is prevented from being generated when the keyboard is knocked after the key cap with the paint in the seat hole is installed into the keyboard, the service life of the keyboard is shortened, and user experience is also influenced.

In an embodiment, with continued reference to fig. 8, the mounting boss 200 of the present invention is provided with two side grooves 211, two surface grooves 212 and three upper preformed holes 230, the three upper preformed holes 230 are arranged in a triangular manner, and the side grooves 211 and the surface grooves 212 are disposed at the peripheries of the three upper preformed holes 230. Such design makes surface utilization on the mounting boss higher, and the setting of side recess, surface recess and last preformed hole can guarantee the installation stability of key cap, guarantees the precision of spraying paint.

The invention also provides a key cap fixed on the key cap paint spraying jig, which can be seen in fig. 7, 8 and 9, and fig. 13 and 14, the key cap paint spraying jig is provided with an installation boss 200 for fixing the key cap 300, the installation boss 200 is provided with a key cap installation groove 210, the key cap 300 is provided with a buckle structure 320 matched with the key cap installation groove 210, and the key cap 300 is fixedly connected with the key cap paint spraying jig through the buckle structure 320.

In one embodiment, the key cap mounting groove 210 of the mounting boss 200 includes a lateral groove 211 and a surface groove 212, and the key cap 300 is snap-connected with the lateral groove 211 and the surface groove 212 through a snap structure 320.

In an embodiment, the side recess 211 is seted up the surface of mounting boss 200, just the side recess 211 is followed the lateral wall of mounting boss 200 is seted up, the side recess 211 with a lateral wall of the coincidence of the lateral wall of mounting boss 200 highly is less than the height of mounting boss 200, and this kind of difference in height makes things convenient for the key cap and the fixed screens of mounting boss, the installation of being convenient for, also is convenient for disassemble, and is provided with the shrinkage pool on this lateral wall, the shrinkage pool cooperatees with the reinforcement 3213 of pothook 321 on the key cap 300, the reinforcement 3213 card of pothook 321 is established in the shrinkage pool. The surface groove 212 is formed on the surface of the mounting boss 200, a clamping shaft 213 is arranged on the wall of the surface groove 212, and the mounting height of the clamping shaft 213 is lower than the upper surface of the mounting boss 200; the fastening structure 320 of the key cap 300 includes a hook 321 engaged with the side groove 211, and a fastening seat 322 engaged with the surface groove 212. The card axle with the cassette on the key cap is counterpointed the installation and can be guaranteed to be connected fixedly, and its permission a little turned angle of cooperation of card axle and cassette, and the design is more reasonable, has reserved the error buffering, and the rotation in the deviation angle does not influence the precision of spraying paint promptly, and relative rigid connection, and such connected mode that allows a little deflection is difficult for causing the key cap to damage. And the clamping shaft clamping seat is connected to prevent paint from flowing into the seat hole of the clamping seat, abnormal sound is prevented from being generated when the keyboard is knocked after the key cap with the paint in the seat hole is installed into the keyboard, the service life of the keyboard is shortened, and user experience is also influenced.

In one embodiment, the hook 321 of the fastening structure 320 has a reinforcement 3213, and the reinforcement 3213 is received in a recess on a sidewall of the lateral groove 211; a clamping shaft 213 is disposed on a wall of the surface groove 212, and the key cap 300 is fixedly connected to the clamping shaft 213 of the surface groove 212 through the clamping seat 322. The reinforcing body is arranged on the side surface of the supporting column and connects the supporting column with the edge of the keycap, so that the clamping hook is higher in strength and is not easy to break. Through the structural design, the supporting column and the top plate form a clamping hook matched with the side groove of the mounting boss.

In one embodiment, the hook 321 includes a supporting column 3211 and a top plate 3212 connected to the supporting column 3211, one end of the supporting column 3211 is connected to the back of the keycap 300, and the other end is connected to the top plate 3212, the cross-sectional shape of the supporting column 3211 is "L" shaped, the top plate 3212 is rectangular, the top plate 3212 covers the plate surface of the supporting plate, and the reinforcing body 3213 is disposed on the side wall of the supporting column 3211; the clamping seat 322 has a seat hole 3221 matching with the clamping shaft 213, a central axis direction of the seat hole 3221 is the same as the central axis direction of the clamping shaft 213, a hole wall of the seat hole 3221 has an opening, and the clamping shaft 213 is accommodated in the seat hole 3221 from the opening. The card axle with the cassette on the key cap is counterpointed the installation and can be guaranteed to be connected fixedly, and its permission a little turned angle of cooperation of card axle and cassette, and the design is more reasonable, has reserved the error buffering, and the rotation in the deviation angle does not influence the precision of spraying paint promptly, and relative rigid connection, and such connected mode that allows a little deflection is difficult for causing the key cap to damage.

In one embodiment, the seating hole 3221 is a circular through hole, and the width of an opening on the wall of the seating hole 3221 is smaller than the length of the diameter of the seating hole 3221; the cross section of the clamping shaft 213 is a combination of a rectangle and a semicircle, the diameter of the semicircle is larger than the side length of the rectangle, the rectangle and the semicircle are in transitional connection through a bevel edge, the rectangle is close to the bottom of the mounting boss 200, the semicircle is close to the surface of the mounting boss 200, the clamping shaft 213 is accommodated in the seating hole 3221 from the opening of the seating hole 3221, the semicircular section part of the clamping shaft 213 is accommodated in the seating hole 3221, and the rectangular section part of the clamping shaft 213 is located at the opening of the seating hole 3221.

In an embodiment, referring to fig. 6 and 7, the diameter of the semicircular cross-section of the fastening shaft 213 of the present invention is larger than the width of the opening on the hole wall of the seating hole 3221, and the fastening seat 322 of the key cap 300 is fastened on the fastening shaft 213 from the opening of the seating hole 3221.

In one embodiment, a key cap avoiding groove 220 is formed in the middle of the upper surface of the mounting boss 200, the key cap avoiding groove 220 is recessed downward from the upper surface to form a groove shape, the key cap 300 has a protrusion 310 matched with the key cap avoiding groove 220, and the key cap is positioned by matching the protrusion with the key cap avoiding groove. The depth of the keycap avoiding groove 220 can be greater than or equal to 2mm, and if the depth of the keycap avoiding groove is insufficient, the keycap can slide in the keycap avoiding groove, so that the depth is also an important index for positioning and limiting.

In an embodiment, the key cap dodges still around groove 220 and has last preformed hole 230, it can be three to go up preformed hole 230, the key cap dodges the central point that groove 220 is located this three preformed hole 230 and puts, it has the pore wall that extends to the base plate direction from installation boss 200 surface to go up preformed hole 230, go up preformed hole 230 and can assist the lacquer of permeating to be unlikely to have foggy lacquer to permeate into the buckle structure of key cap when spraying paint to the key cap, have the guard action.

The invention also provides a use method of the keycap paint spraying jig, which comprises the following steps:

the keycap paint spraying jig is fixedly connected to the substrate 400,

the key cap 300 is mounted on the mounting boss 200 of the key cap painting jig,

a pressing column of an automatic machine table is arranged in a through hole of a positioning column 180 of the key cap paint spraying jig,

facing the surface of the key cap paint spraying jig provided with the mounting boss 200 to paint spraying equipment, and spraying paint on the surface of the key cap 300 by using the paint spraying equipment;

after the surface of the key cap 300 is painted, the key cap 300 is detached from the installation boss 200, and the substrate 400 and the key cap painting jig are detached.

The jig is fixedly connected with the base plate through the connecting columns, the connecting columns penetrate through the corresponding small positioning holes in the base plate, the end parts of the connecting columns extend out of the small positioning holes, the guide strips at the root parts of the connecting columns are cut by the small positioning holes, so that the root parts of the connecting columns are in interference fit with the small positioning holes in the aluminum plate, the end parts of the extending connecting columns are subjected to hot melting on the back surface of the aluminum plate, the fixing is further performed, and the stability of fixing the connecting blocks on the aluminum plate is improved. The positioning column penetrates through the main positioning hole, corresponding to the positioning column, in the aluminum plate, the main positioning hole is clamped at the periphery of the positioning column, the positioning column on the paint spraying jig can be directly positioned through the upper pressing column of the automatic machine, and the aluminum plate is prevented from being abraded by the positioning rod. The automatic machine presses the fixed area of the jig, so that the jig can be further fixed, and the multiple fixing effects can ensure the precision of the applied jig during paint spraying.

In one embodiment, the painting of the keycap by using the painting equipment includes:

the spray head of the paint spraying equipment is aligned to the side, provided with the mounting boss, of the key cap paint spraying jig, when paint is sprayed, negative pressure is formed on the side, provided with the substrate, of the key cap paint spraying jig, and the atomized paint which is not attached to the key cap is sucked out through the upper paint through holes of the key cap paint spraying jig by the negative pressure. The mode can ensure the uniformity of paint spraying and improve the yield of products.

In an embodiment, the detaching the substrate 400 from the key cap painting jig specifically includes:

The jig can be applied for 3 times in production application, and if the jig is further applied, the potential risk that the precision requirement does not meet the standard exists, so that in order to ensure that the processing precision of the product meets the requirement, the jig needs to be disassembled and replaced after being used for 3 times, the corresponding substrate does not need to be replaced, the substrate is used all the time until the substrate does not meet the processing requirement, and therefore the substrate serving as a durable product is protected everywhere by the jig so as to prolong the service life of the substrate, not only in view of cost, but also in view of continuous utilization of resources.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

While embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications and variations may be made therein by those of ordinary skill in the art within the scope of the present invention.

Claims

1. The utility model provides a key cap tool that sprays paint, its characterized in that, it includes connecting plate (100), connecting plate (100) include a plurality of mutual overlap joint sub-connecting plate, every be provided with installation base (200) for fixed key cap (300) on the sub-connecting plate, be provided with key cap mounting groove (210) on installation base (200), installation base (200) pass through key cap mounting groove (210) are connected with key cap (300), key cap (300) with installation base (200) block is connected.

2. A key cap paint spraying jig according to claim 1,

the key cap mounting groove (210) arranged on the mounting boss (200) comprises a side groove (211) and a surface groove (212), and the key cap (300) is connected with the mounting boss (200) in a clamping manner through the side groove (211) and the surface groove (212);

the side edge groove (211) is formed in the surface of the mounting boss (200), the side edge groove (211) is formed along the side wall of the mounting boss (200), the height of one side wall, superposed with the side wall of the mounting boss (200), of the side edge groove (211) is smaller than that of the mounting boss (200), a concave hole is formed in the side wall, and the concave hole is clamped with a reinforcing body (3213) of a clamping hook on the keycap (300);

the surface groove (212) is formed in the surface of the mounting boss (200), a clamping shaft (213) is arranged on the groove wall of the surface groove (212), the mounting height of the clamping shaft (213) is lower than the upper surface of the mounting boss (200), and the clamping shaft (213) is clamped with a clamping seat (322) on the keycap (300).

3. A key cap paint spraying jig according to claim 1,

the connecting plate (100) comprises a first sub-connecting plate (101), a second sub-connecting plate (102), a third sub-connecting plate (103), a fourth sub-connecting plate (104) and a fifth sub-connecting plate (105), wherein the first sub-connecting plate (101) and the second sub-connecting plate (102) are in left-right lap joint, the fifth sub-connecting plate (105) and the fourth sub-connecting plate (104) are in left-right lap joint, the first sub-connecting plate (101) and the fifth sub-connecting plate (105) are in up-down lap joint, the second sub-connecting plate (102) and the fourth sub-connecting plate (104) are in up-down lap joint, and the second sub-connecting plate (102) and the fourth sub-connecting plate (104) are in left-right lap joint with the third sub-connecting plate (103) respectively.

4. A key cap paint spraying jig according to claim 1,

still be provided with on installation base plate (200) a plurality of preformed holes (230) of going up, the pore wall of going up preformed hole (230) certainly installation base plate (200) surface downwardly extending is in order to run through lower preformed hole (440) on base plate (400), the pore wall of going up preformed hole (230) hold in lower preformed hole (440), the aperture of going up preformed hole (230) is less than the aperture of lower preformed hole (440).

5. A key cap paint spraying jig according to claim 1,

one surface of the connecting plate (100) provided with the mounting boss (200) is provided with a paint blocking strip (130), a circle of the paint blocking strip (130) is wound on the connecting plate (100), the part of the connecting plate (100) positioned at the inner side of the circle of the paint blocking strip (130) forms a paint spraying area, the part of the connecting plate (100) positioned at the outer side of the circle of the paint blocking strip (130) forms a fixed area,

the mounting boss (200) is disposed within the spray painting zone.

6. A key cap paint spraying jig according to claim 5,

a plurality of stacking columns (140) are arranged in the fixing area of the connecting plate (100), the stacking columns (140) are close to the edge of the connecting plate (100), and the stacking columns (140) are uniformly distributed around the connecting plate (100);

the total height of the mounting boss (200) and the keycap (300) mounted on the mounting boss (200) is less than the height of the stacking column (140).

7. A key cap paint spraying jig according to claim 6,

the edge of the connecting plate (100) is provided with a circle of flanges (150), the flanges (150) extend from the connecting plate (100) to the direction away from the mounting boss (200), and a substrate (400) is accommodated in the circle of flanges (150).

8. A key cap paint spraying jig according to claim 7,

the connecting plate (100) is provided with a plurality of mounting bosses (200), the mounting bosses (200) are arranged on the connecting plate (100) in multiple rows, each row comprises a plurality of mounting bosses (200), and upper paint through holes (160) are formed between every two adjacent mounting bosses (200) in each row and between every two adjacent rows of mounting bosses (200);

a lower paint penetration hole (410) which is arranged in an alignment way with the upper paint penetration hole (160) is arranged on the base plate (400),

go up to pass through lacquer hole (160) have certainly connecting plate (100) orientation the pore wall that base plate (400) direction extended, the pore wall of going up to pass through lacquer hole (160) hold in lower lacquer hole (410) on base plate (400), go up to pass through lacquer hole (160) with lower lacquer hole (410) pass through the pore wall intercommunication forms and leads the lacquer passageway.

9. A key cap paint spraying jig according to claim 1,

the connecting plate (100) is integrally formed with a disassembling protection sheet (170) which is used for abutting against a disassembling platform support part when the connecting plate (100) is disassembled, the disassembling protection sheets (170) are arranged at four top corners of the connecting plate (100),

the surface of the disassembling protection plate (170) is basically flush with the surface of the connecting plate (100), the edge of the disassembling protection plate (170) is provided with a circle of limiting groove (171), and the depth of the limiting groove (171) is smaller than the thickness of the connecting plate (100).

10. A key cap paint spraying jig according to claim 1,

be provided with the key cap on installation base (200) and dodge groove (220), the key cap is dodged groove (220) and is seted up between two parties the upper surface of installation base (200), the key cap dodges groove (220) certainly upper surface undercut forms the trough-shaped, have on key cap (300) with the key cap dodges groove (220) complex arch (310).

11. A key cap paint spraying jig according to claim 1,

a connecting column (223) is arranged at the bottom of the keycap avoiding groove (220) on the mounting boss (200), one end of the connecting column (223) is connected with the bottom of the keycap avoiding groove (220), the other end extends towards the direction opposite to the direction of the notch of the keycap avoiding groove (220),

the side wall of the connecting column (223) is provided with a plurality of guide strips (224), the connecting column (223) is inserted and connected with the small positioning hole (420) on the substrate (400) in an aligning way, the connecting column (223) is in interference fit with the small positioning hole (420) on the substrate (400),

the length of spliced pole (223) is greater than the thickness of base plate (400), spliced pole (223) with the key cap dodges the one end that groove (220) tank bottom links to each other and holds in little locating hole (420), the other end of spliced pole (223) certainly little locating hole (420) are outwards stretched out, and this overhanging tip hot melt is fixed base plate (400) surface.

12. A key cap paint spraying jig according to claim 1,

the connecting plate (100) is further provided with a positioning column (180), the positioning column (180) comprises a through hole formed in the connecting plate (100), the through hole is provided with a hole wall extending from the connecting plate (100) to a first direction and a second direction, the through hole and the hole wall form a positioning hole of the positioning column (180), the first direction is opposite to the second direction, and the first direction and the second direction are both vertical to the plate surface of the connecting plate (100),

a cover plate (181) is arranged at one end of the through hole wall, the cover plate (181) is positioned at one side of the connecting plate (100) provided with the mounting boss (200), the through hole wall and the cover plate (181) form the positioning column (180) on the connecting plate (100),

the other end of the through hole wall penetrates through a main positioning hole (430) in the substrate (400).

13. The use method of the keycap paint spraying jig is characterized by comprising the following steps:

the keycap paint spraying jig is fixedly connected on a substrate (400),

installing a key cap (300) on the installation boss (200) of the key cap paint spraying jig,

a press column of an automatic machine table is arranged in a positioning hole of a positioning column (180) of the keycap paint spraying jig,

the side, provided with the mounting boss (200), of the keycap paint spraying jig faces paint spraying equipment, and paint is sprayed on the surface of the keycap (300) by the paint spraying equipment;

after the surface of the key cap (300) is painted, the key cap (300) is detached from the mounting boss (200), and the substrate (400) and the key cap painting jig are detached.

14. The use method of the keycap painting jig according to claim 13, wherein painting the keycap (300) by using a painting device specifically comprises:

the spray head of the paint spraying equipment is aligned to one side, provided with the mounting boss (200), of the key cap paint spraying jig, when paint is sprayed, negative pressure is formed on the side, provided with the substrate (400), of the key cap paint spraying jig, and the atomized paint which is not attached to the key cap (300) is sucked out through the upper paint through hole (160) of the key cap paint spraying jig by the negative pressure.

15. The method for using the key cap painting jig according to claim 13, wherein the step of detaching the substrate (400) from the key cap painting jig specifically comprises:

the key cap paint spraying jig is placed on four thimbles of a machine table in a mode that a substrate (400) faces upwards, the four thimbles are respectively correspondingly supported with disassembling protection plates (170) on four corners of the key cap paint spraying jig,

and applying impact force above a substrate (400) of the keycap paint spraying jig, wherein the ejector pin penetrates through the disassembling protection sheet (170), and the keycap paint spraying jig is separated from the substrate (400).