CN105521913A - Film formation method - Google Patents

Abstract

The invention relates to a film formation method. The film formation method includes the steps that a film formation device is provided, wherein the film formation device comprises a containing jig and a fixing jig, and a containing groove is formed in the containing jig; a part to be subject to film formation is fixed to the fixing jig; the part to be subject to film formation is contained and suspended in the containing groove to enable a gap to be formed between the part to be subject to film formation and the side wall and the bottom of the corresponding containing groove; the vacuum state is formed in the gap, and the gap is filled with fluid-shaped film formation materials; the film formation materials are cured, and a film layer is formed on the surface of the part to be subject to film formation; and the part to be subject to film formation and the surface film layer of the part to be subject to film formation are separated from the containing jig.

Description

Film build method

Technical field

The present invention relates to a kind of film build method.

Background technology

Usually, protective film is formed by spraying method at the component surface of electronic product.But the evenness of membranous layer that spraying is formed is poor, and easily produces dead angle (namely component surface subregion does not form rete).Moreover the spray equipment volume ratio of spraying required for film forming is huger, and required investment amount is also larger.Spraying generally uses the filmogen that can be dissolved in solvent, and the volatilization of solvent also can cause environmental pollution.

Summary of the invention

In view of this, be necessary to provide a kind of uniformity better, the lower and film build method of environmental protection of cost.

The invention provides a kind of film build method, for forming rete at least one part to be filmed, it comprises step: provide a film formation device, and described film formation device comprises collecting tool and fixed jig, is formed with at least one storage tank in described collecting tool; Described at least one part to be filmed is fixed on described fixed jig; By accommodating for described at least one part to be filmed and be suspended in described at least one storage tank, make to form gap between the sidewall of each part to be filmed and corresponding storage tank and bottom; Vacuum state is formed in described gap, and to the filmogen of fill fluid shape in described gap; Solidify described filmogen, form rete on the surface of described at least one part to be filmed; And described at least one part to be filmed and superficial film thereof are separated from described collecting tool.

Compared to prior art, the film build method of the technical program establishes part to be filmed by outstanding in this collecting tool, the mode adopting vacuum to inject is filled to membrane material in the gap between described collecting tool and described part to be filmed, thus form a uniform rete on the surface of described part to be filmed, and be not easy to produce dead angle.Moreover filmogen is under the effect of negative pressure of vacuum, and flowing velocity increases, be conducive to shortening film formation time; And easily release bubble is also attached to piece surface to be filmed securely, produces surperficial bag gas phenomenon after avoiding part film forming to be filmed.Finally, the film formation device structure of the technical program is simple, and film build method step is simple, is conducive to reducing production cost.

Accompanying drawing explanation

The schematic flow sheet of the film build method that Fig. 1 provides for a preferred embodiment of the present invention.

The generalized section of film formation device of Fig. 2 for using in the film build method shown in Fig. 1.

Fig. 3 adsorbs for film formation device in the film build method shown in Fig. 1 and accommodates the generalized section after part to be filmed.

Fig. 4 in the film build method shown in Fig. 1 to the generalized section after injecting glue in the storage tank of film formation device.

Fig. 5 is the generalized section after part demoulding to be filmed in the film build method shown in Fig. 1.

Main element symbol description

Film formation device	10
		UV light source	12
Collecting tool	111
		Fixed jig	112
Upper surface	1111
		Lower surface	1112
Storage tank	1113
		Through hole	1114
End face	1121
		Bottom surface	1122
Side	1120
		Binding domain	110
Absorption through hole	1123
		To bleed through hole	1124
Gummosis through hole	1125
		Lead	1126
Part to be filmed	20
		Gap	21
For the formation of the material of rete, filmogen	30
		Rete	40

Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.

Detailed description of the invention

Fig. 1 illustrates the film build method in the present invention one better embodiment, and it comprises the steps:

Step one, please also refer to Fig. 2, provides a film formation device 10.Described film formation device 10 comprises collecting tool 111, fixed jig 112 and a UV light source 12.

Described collecting tool 111 adopts transparent material to make, as transparent plastic or clear glass etc., to make described collecting tool 111 can through UV light.Described collecting tool 111 comprises the upper surface 1111 and lower surface 1112 that are oppositely arranged.Described upper surface 1111 offers a storage tank 1113, it please refer to Fig. 3 for accommodating a part 20(to be filmed).Described collecting tool 111 also offers at least one through hole 1114, the through described upper surface 1111 of described through hole 1114 and described lower surface 1112 and and described storage tank 1113 interval arrange.

Wherein, the shape of described storage tank 1113 is identical with the shape of part 20 to be filmed.The size of described storage tank 1113 is greater than the size of described part to be filmed 20, make when described part 20 to be filmed accommodating and be suspended in described storage tank 1113 time, between the bottom of described part 20 to be filmed and described storage tank 1113 and sidewall, all there is certain gap 21(and please refer to Fig. 3).The width in described gap 21 is suitable with the thickness to be filmed preset.For ease of explanation, roughly be described in rectangular shape with part 20 to be filmed in the present embodiment, namely part 20 to be filmed has six surfaces, and the surface to be filmed of part 20 to be filmed is five surfaces wherein, and another surface defining described part to be filmed 20 is by absorption surface.Described storage tank 1113 is also roughly in rectangular shape.In the present embodiment, described collecting tool 111 adopts different materials to make from part 20 to be filmed, and for the formation of material 30(and the filmogen of rete, please refer to Fig. 4) and described part to be filmed 20 between adhesion be greater than this filmogen 30 and the adhesion of described collecting tool 111, after film forming, more easily depart from described storage tank 1113 to make part 20 to be filmed.In other embodiments, the bottom of described storage tank 1113 and sidewall are formed with a release layer (not shown), described release layer can be formed by carrying out storage tank 1113 mode such as plating or spraying mould release, more easily departs from described storage tank 1113 for making part 20 to be filmed after film forming.

Described fixed jig 112 is for fixing part 20 to be filmed.In the present embodiment, fixed jig 112 fixes this part 20 to be filmed by the mode of vacuum suction.Described fixed jig 112 comprises the end face 1121 and bottom surface 1122 and the side 1120 being connected end face 1121 and bottom surface 1122 that are oppositely arranged.Described bottom surface 1122 comprises a binding domain 110.The position of described binding domain 110 is corresponding with the position of described storage tank 1113.More specifically, the shape of described binding domain 110 and part to be filmed 20 by the mating shapes of absorption surface.Be appreciated that in other embodiments, described collecting tool 111 also can arrange multiple storage tank 1113, and for multiple part 20 to be filmed film forming simultaneously, the quantity of described binding domain 110 is identical with the quantity of described storage tank 1113.

Be formed with multiple absorption through hole 1123, in described fixed jig 112 to bleed through hole 1124 and two gummosis through holes 1125.The through described binding domain 110 of described absorption through hole 1123 also extends to described end face 1121.Described through hole 1124 of bleeding all is communicated with described absorption through hole 1123, and through described side 1120 being connected with one first vavuum pump (not shown).Described first vavuum pump is used for producing vacuum state in described bleed through hole 1124 and absorption through hole 1123, can be adsorbed on described binding domain 110 to make part 20 to be filmed.The through described bottom surface 1122 of described gummosis through hole 1125 and described side 1120.The opening that described two gummosis through holes 1125 are formed in described side 1120 is connected with one second vavuum pump (not shown) and a glue injection machine (not shown) respectively.Described gummosis through hole 1125 is positioned at outside described binding domain 110 at the opening that described bottom surface 1122 is formed.When described upper surface 1111 is affixed with described bottom surface 1122, described gummosis through hole 1125 is connected with described storage tank 1113.Described second vavuum pump is used for producing vacuum state in coupled gummosis through hole 1125 and described storage tank 1113.The gummosis through hole 1125 be connected with described glue injection machine, as the runner being injected into membrane material 30 to described storage tank 1113, makes the filmogen 30 injected from this glue injection machine can flow down through the sidewall of described gummosis through hole 1125 along storage tank 1113.

Certainly, described in bleed through hole 1124 and described gummosis through hole 1125 also can be positioned at described end face 1121 in the one end away from described bottom surface 1122, only need and be interlinked to the outside.Described bottom surface 1122 is convexly equipped with at least one lead 1126.Described lead 1126 and described through hole 1114 one_to_one corresponding, and be arranged in respectively in corresponding through hole 1114, thus described collecting tool 111 is detachably connected to described fixed jig 112.Wherein, by a fastening bolt (not shown), described collecting tool 111 can be fixed on described fixed jig 112.

Described UV light source 12 is arranged towards the lower surface 1112 of described collecting tool 111, and it is for launching UV light.When described filmogen 30 is UV light curable material, described UV light can make the filmogen 30 in described storage tank 1113 solidify.Certainly, filmogen 30 can also be thermoplastic or thermosets (being such as heat-curable glue).Now, described UV light source 12 can omit, and described collecting tool 111 does not need to adopt transparent material to make yet.

Step 2, please refer to Fig. 3, is fixed on described fixed jig 112 by described part 20 to be filmed.Concrete, open described first vavuum pump, by being adsorbed on the binding domain 110 of this fixed jig 112 by absorption surface of part 20 to be filmed.

Step 3, by accommodating for described part 20 to be filmed and be suspended in described storage tank 1113.Concrete, be arranged in described through hole 1114 by by described lead 1126, thus described fixed jig 112 is connected on described collecting tool 111, and the bottom surface 1122 of described fixed jig 112 is affixed with the upper surface 1111 of described collecting tool 111.Thus described part 20 to be filmed is accommodating and be suspended in described storage tank 1113, form gap 21 between the bottom of itself and described storage tank 1113 and sidewall, the width in described gap 21 is all suitable with the thickness to be filmed preset.Now, fixed jig 112 and described collecting tool 111 are fixed.

Step 4, please refer to Fig. 4, opens described second vavuum pump, forms vacuum state, in described gap 21, then injected the filmogen 30 of flow-like by described gummosis through hole 1125 in described storage tank 1113.Described filmogen 30 is inhaled into gummosis through hole 1125 fast under vacuum conditions and sidewall along storage tank 1113 flows down and evenly fills up described gap 21.In the present embodiment, described filmogen 30 is UV optic-solidified adhesive, and the adhesion between described filmogen 30 and part to be filmed 20 is greater than the adhesion between filmogen 30 and collecting tool 111.

Step 5, please refer to Fig. 4, Fig. 5, controls described UV light source 12 and launches UV light to described collecting tool 111.When described filmogen 30 is UV light curable material, due to described collecting tool 111 for transparent material is made, therefore UV light can irradiate the filmogen 30 in described storage tank 1113 through described collecting tool 111, make filmogen 30 solidify and form a rete 40 on the surface of described part 20 to be filmed.When filmogen 30 be thermoplastic or thermosets time, this step 5 can be omitted, or can adopt the mode of heating replace UV irradiate make filmogen 30 solidify to form rete 40.

Step 6, is separated described part 20 to be filmed and superficial film 40 thereof, obtains the part that surface is formed with rete 40 from described collecting tool 111.

In sum, the film build method of the technical program establishes part 20 to be filmed by outstanding in collecting tool 111, the mode adopting vacuum to inject is filled to membrane material 30 in the gap 21 between described collecting tool 111 and described part to be filmed 20, thus form a uniform rete 40 on the surface of described part 20 to be filmed, and be not easy to produce dead angle.Moreover filmogen 30 is under the effect of negative pressure of vacuum, and flowing velocity increases, be conducive to shortening film formation time; And easily release bubble is also attached to part 20 to be filmed surface securely, produces surperficial bag gas phenomenon after avoiding part 20 film forming to be filmed.Finally, film formation device 10 structure of the technical program is simple, and film build method step is simple, is conducive to reducing production cost.

In a word; those skilled in the art will be appreciated that; above embodiment is only used to the present invention is described; and be not used as limitation of the invention; as long as within spirit of the present invention, the suitable change do above embodiment and change all drop within the scope of protection of present invention.

Claims (10)

1. a film build method, for forming rete at least one part to be filmed, is characterized in that, comprise step:

There is provided a film formation device, described film formation device comprises collecting tool and fixed jig, is formed with at least one storage tank in described collecting tool;

Described at least one part to be filmed is fixed on described fixed jig;

By accommodating for described at least one part to be filmed and be suspended in described at least one storage tank, make to form gap between the sidewall of each part to be filmed and corresponding storage tank and bottom;

Vacuum state is formed in described gap, and to the filmogen of fill fluid shape in described gap;

Solidify described filmogen, form rete on the surface of described at least one part to be filmed; And

Described at least one part to be filmed and superficial film thereof are separated from described collecting tool.

2. film build method as claimed in claim 1, it is characterized in that: described filmogen is UV light curable material, described collecting tool adopts transparent material to make, described film formation device also comprises a UV light source further, it for launching UV light to described collecting tool, thus solidifies the UV photocuring glue in described gap.

3. film build method as claimed in claim 2, it is characterized in that: described collecting tool and part to be filmed adopt different materials to make, be greater than the adhesion of UV photocuring glue and described collecting tool for the adhesion between the UV photocuring glue of shaping rete and described part to be filmed.

4. film build method as claimed in claim 2, is characterized in that: described transparent material is transparent plastic or clear glass.

5. film build method as claimed in claim 1, is characterized in that: bottom and the sidewall of described at least one storage tank are formed with a release layer, and described release layer is formed by the bottom of described at least one storage tank and sidewall plating or spraying mould release.

6. film build method as claimed in claim 1, it is characterized in that: described fixed jig comprises the end face and bottom surface that are oppositely arranged, described bottom surface comprises at least one binding domain, described at least one part to be filmed is adsorbed at least one binding domain respectively, thus being fixed on described fixed jig, the quantity of described at least one binding domain is identical with the quantity of described at least one storage tank and position is corresponding.

7. film build method as claimed in claim 6, it is characterized in that: be formed with multiple absorption through hole and in described fixed jig and bleed through hole, the through described at least one binding domain of described absorption through hole also extends to described end face, described in through hole of bleeding all be communicated with described absorption through hole and be connected with one first vavuum pump.

8. film build method as claimed in claim 7, it is characterized in that: in described fixed jig, be also formed with two gummosis through holes, described two gummosis through holes extend to the side of described fixed jig from described bottom surface and are connected with one second vavuum pump and a glue injection machine respectively, described two gummosis through holes are positioned at outside described binding domain at the opening that described bottom surface is formed, the described gummosis through hole be connected with glue injection machine is as the runner injecting described filmogen in described at least one storage tank, described second vavuum pump is used for producing vacuum state in coupled gummosis through hole and described gap.

9. film build method as claimed in claim 6, it is characterized in that: described collecting tool comprises the upper surface and lower surface that are oppositely arranged, described at least one storage tank is opened in described upper surface; At least one through hole of through described upper surface and described lower surface is formed in described collecting tool; Described bottom surface is convexly equipped with at least one lead, and it is arranged in described through hole, thus described collecting tool and described fixed jig is connected and described upper surface and described bottom surface are affixed.

10. film build method as claimed in claim 1, is characterized in that: the width in described gap is identical with the thickness of described rete.