CN112123741A - Light and thin 3D full-packaging plastic mobile phone shell processing system and processing technology thereof - Google Patents

Abstract

The embodiment of the invention discloses a processing system and a processing technology of a light and thin 3D full-packaging plastic mobile phone shell, wherein a flat hot-pressing mold can be shared by products with similar screen sizes, a self-adjusting arched anti-falling structure is adopted in the mold structure, the adjustable size is within 1-2mm, the mold manufacturing cost of the products is saved, and the manufacturing cost is reduced; the processing technology of the mobile phone shell product is improved by adopting a low-temperature hot-press molding technology with glue without an injection molding technology and combining a mould hot-pressing mode of 'hard + soft + hard', so that 70% of power consumption of equipment is reduced, competitiveness of the mobile phone shell manufacturing industry is favorably improved, and cost is favorably reduced; the thickness of the product is reduced to 0.15-0.4MM from the minimum value of 0.4MM of injection molding, the usage amount of the plastic material is reduced to 4-8 g from 10-30 g, the thickness and the weight of the product are reduced, the hand feeling is enhanced, the heat release of the mobile phone product is facilitated, and the interference of wireless and electromagnetic signals is reduced.

Description

Light and thin 3D full-packaging plastic mobile phone shell processing system and processing technology thereof

Technical Field

The embodiment of the invention relates to the technical field of processing of mobile phone shells, mobile phone films and tablet personal computer sheaths, in particular to a processing system and a processing technology of a light and thin 3D full-packaging plastic mobile phone shell.

Background

Current plastic material cell-phone shell all adopts injection molding process or partial injection molding process to accomplish to realize that 3D shaping wraps the structure entirely, be heat flow mold extrusion moulding because of the principle of moulding plastics, when cell-phone shell product design thickness is less than 0.4mm, the plastic raw materials flows poorly in the mould after the heat is melted, leads to unable 3D shaping. And the mobile phone shell adopting the beer-sleeving injection molding and IMD injection molding processes can only realize the reduction of the thickness of local materials or the material saving. The cell-phone shell of moulding plastics because thickness reason, the gram weight can not accomplish within 8 grams. When the surface of the mobile phone shell needs to be decorated by the injection molding process (such as printing, electroplating, lines and the like), only a single product can be decorated, and the decoration of the 3D curved surface part is difficult to achieve while the operation efficiency is low.

Disclosure of Invention

Therefore, the embodiment of the invention provides a processing system and a processing technology of a light and thin 3D full-packaging plastic mobile phone shell, and aims to solve the problem that the conventional plastic mobile phone shell is difficult to be a light and thin product with the thickness of less than 0.4mm and the gram weight of less than 8 grams.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

according to a first aspect of the embodiments of the present invention, a thin 3D full-package plastic mobile phone shell processing system is provided, the system includes:

the plastic sheet decorating equipment is used for decorating a plastic sheet by adopting a roll-to-roll or single sheet processing mode through various decorating processes, and the decorating processes comprise UV transfer printing, film coating, printing, gold stamping, laser etching, oil spraying and dyeing;

the plastic sheet gluing equipment is used for performing bubble-free gluing or glue coating on the bottom of the decorated plastic sheet and a double-sided adhesive tape and gluing a functional layer, wherein the functional layer comprises a release film layer, a heat dissipation sheet layer, a leather layer or a flannelette layer;

the low-temperature hot-press forming equipment comprises a flat hot-press machine and a flat hot-press die, and is used for placing a plastic sheet pasted with a functional layer into the flat hot-press die and carrying out hot-press forming on the flat hot-press machine, wherein the flat hot-press die comprises an upper template and a lower template, an inward concave female die is arranged in the lower template, an outward convex male die matched with the female die is arranged in the upper template, the female die comprises a bottom plate part matched with the size of a mobile phone bottom plate and an anti-falling frame groove part connected with the bottom plate part, the bottom plate part and the anti-falling frame groove part are connected through a bending groove, and at least one anti-falling arch groove is arranged on each of the bottom plate part;

the punching forming equipment is used for cutting through the area corresponding to the mobile phone function hole site on the plastic mobile phone shell after hot press forming at one time, removing redundant waste materials, and bending the anti-falling frame groove part along the bending groove to obtain a finished product.

Further, to the cell-phone shell of folding cell-phone, the bed die includes first bottom plate portion and second bottom plate portion, the outside of first bottom plate portion is connected with the first frame slot portion of preventing falling through the groove of bending, the outside of second bottom plate portion is connected with the second through the groove of bending and prevents falling the frame slot portion, all connect the third frame slot portion of preventing falling through the groove of bending between first bottom plate portion and the second bottom plate portion.

Further, to membrane shell integral type cell-phone shell, the bed die includes bottom plate portion and screen protection lamina portion, connect the fourth through the groove of bending between bottom plate portion and the screen protection lamina portion and prevent falling the frame tank part respectively, the outside of bottom plate portion is connected the fifth through the groove of bending and is prevented falling the frame tank part.

Furthermore, the plastic sheet decoration equipment comprises a printing machine, a film coating machine, a transfer printing machine and an oil spraying gun.

Further, the plastic piece rubberizing equipment includes laminating machine and spreading machine.

Further, die-cut former includes punch press, cross cutting machine, laser machine and cnc engraving and milling machine.

Further, when the plastic sheet pasted with the functional layer is placed in a flat plate hot-pressing mould and hot-pressed and formed on a flat plate hot-pressing machine, a layer of silicon rubber sheet with the thickness of 0.3-5mm is placed on the surface of the plastic sheet pasted with the functional layer, and then hot-pressing forming is carried out.

According to a second aspect of the embodiments of the present invention, a processing technology of a thin 3D full-package plastic mobile phone shell processing system is provided, where the processing technology includes:

plastic sheet decoration: decorating the plastic sheet by adopting a roll-to-roll or single sheet processing mode through various decoration processes, wherein the decoration processes comprise UV transfer printing, film coating, printing, gold stamping, laser carving, oil spraying and dyeing;

and (3) rubberizing of the plastic sheet: carrying out bubble-free type laminating or glue coating on the bottom of the decorated plastic sheet and a double-sided adhesive tape and laminating a functional layer, wherein the functional layer comprises a release film layer, a heat dissipation sheet layer, a leather layer or a flannelette layer;

and (3) low-temperature hot-press forming: putting the plastic sheet pasted with the functional layer into a flat plate hot-pressing mould and carrying out hot-pressing molding on a flat plate hot press;

punching and forming: and cutting through the area corresponding to the mobile phone function hole site on the plastic mobile phone shell subjected to hot press molding at one time, removing redundant waste materials, and bending the anti-falling frame groove part along the bending groove to obtain a finished product.

Further, the processing technology further comprises the following steps:

and placing the plastic sheet pasted with the functional layer into a flat plate hot-pressing mould, and carrying out hot-pressing forming after a layer of silicon rubber sheet with the thickness of 0.3-5mm is placed on the surface of the plastic sheet pasted with the functional layer when the plastic sheet is subjected to hot-pressing forming on a flat plate hot-pressing machine.

Further, the processing technology further comprises the following steps:

in low-temperature hot press molding, different hot press molding parameters are set for different materials, the hot press molding temperature is 65-75 ℃ for PET sheets, 55-65 ℃ for PC sheets and 55-60 ℃ for PVC and PP sheets; the flow speed of hot oil is 0.5 m/s; the molding pressure maintaining time is 2-10 seconds.

The embodiment of the invention has the following advantages:

according to the light and thin 3D full-package plastic mobile phone shell processing system and the processing technology thereof, products with the same screen size close to that of the products can share a flat hot-pressing mold, a self-adjusting arched anti-falling structure is adopted in the mold structure, the size can be adjusted within 1-2mm, the mold manufacturing cost of the products is saved, and the manufacturing cost is reduced; the low-temperature hot-press molding process which is not an injection molding process is adopted, the processing process of mobile phone shell products is improved, the electricity consumption of equipment is reduced by 70%, the competitiveness of the mobile phone shell manufacturing industry is favorably improved, and the cost is favorably reduced; the thickness of the product is reduced to 0.15-0.4MM from the minimum value of 0.4MM of injection molding, and the usage amount of the plastic material is reduced to 4-8 g from 10-30 g; the thickness and the weight of the product are reduced, the hand feeling is enhanced, the heat release of the mobile phone product is facilitated, and the interference of wireless and electromagnetic signals is reduced.

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 should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

Fig. 1 is a schematic structural diagram of an upper mold of a flat plate hot-pressing mold in a processing system of a light, thin, 3D full-plastic mobile phone shell according to embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of a lower mold of a flat plate hot-pressing mold in a processing system of a light and thin 3D fully-wrapped plastic mobile phone shell according to embodiment 1 of the present invention;

fig. 3 is a schematic cross-sectional structure view of a flat plate hot-pressing mold female mold in a thin 3D fully-wrapped plastic mobile phone shell processing system according to embodiment 1 of the present invention;

fig. 4 is a schematic cross-sectional structure view of a rear cover type mobile phone shell manufactured by a thin 3D fully-enclosed plastic mobile phone shell processing system according to embodiment 1 of the present invention;

fig. 5 is a schematic structural diagram of a rear cover type mobile phone shell manufactured by a thin 3D fully-enclosed plastic mobile phone shell processing system according to embodiment 1 of the present invention;

fig. 6 is a schematic sectional view of a mold of a foldable mobile phone shell of a thin 3D fully-enclosed plastic mobile phone shell processing system according to embodiment 1 of the present invention;

fig. 7 is a schematic structural diagram of a folding mobile phone shell of a thin 3D fully-enclosed plastic mobile phone shell processing system according to embodiment 1 of the present invention;

fig. 8 is a schematic sectional view of a mold of a film-shell integrated mobile phone shell of a thin 3D fully-enclosed plastic mobile phone shell processing system according to embodiment 1 of the present invention;

fig. 9 is a schematic structural diagram of a film-shell integrated mobile phone shell of a thin 3D fully-enclosed plastic mobile phone shell processing system according to embodiment 1 of the present invention;

fig. 10 is a plastic sheet structure diagram in a processing system of a light, thin, 3D fully-enclosed plastic mobile phone shell according to embodiment 1 of the present invention;

fig. 11 is a processing flow chart of the processing system of the light, thin, 3D fully-enclosed plastic mobile phone shell according to embodiment 1 of the present invention.

In the figure: cope match-plate pattern 1, lower bolster 2, bottom plate 21, prevent falling frame slot part 22, bend the groove 23, prevent falling arch-shaped groove 24, first bottom plate 31, second bottom plate 32, first prevent falling frame slot part 33, the second prevents falling frame slot part 34, the third prevents falling frame slot part 35, bottom plate 41, screen protection membrane portion 42, the fourth prevents falling frame slot part 43, the fifth prevents falling frame slot part 44, plastic lamella 51, decorative layer 52, glue film 53, functional layer 54.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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.

Example 1

This embodiment provides a frivolous 3D wraps plastic cell-phone shell system of processing entirely, and this system includes plastic sheet decoration equipment, plastic piece rubberizing equipment, low temperature hot briquetting equipment and die-cut former.

The plastic sheet decorating equipment is used for decorating plastic sheets in a roll-to-roll or single sheet processing mode through various decorating processes, and the decorating processes comprise UV transfer printing, film coating, printing, gold stamping, laser etching, oil spraying, dyeing and the like. The plastic sheet decorating equipment comprises a printing machine, a film coating machine, a transfer printing machine, an oil spraying gun and the like.

The plastic sheet rubberizing equipment is used for performing bubble-free type laminating or glue coating on the bottom of a decorated plastic sheet and a double-faced adhesive tape and pasting a functional layer, wherein the functional layer comprises a release film layer, a heat dissipation sheet layer, a leather layer or a flannelette layer and the like. The plastic piece rubberizing equipment comprises a film laminating machine, a glue spreading machine and the like.

The low-temperature hot-press molding equipment comprises a flat-plate hot-press machine and a flat-plate hot-press mold, and is used for placing the plastic sheet pasted with the functional layer into the flat-plate hot-press mold and carrying out hot-press molding on the flat-plate hot-press machine. Further, when the plastic sheet pasted with the functional layer is placed in a flat plate hot-pressing die and is subjected to hot-pressing forming on a flat plate hot-pressing machine, a layer of silicon rubber sheet with the thickness of 0.3-5mm is placed on the upper portion of the surface of the plastic sheet pasted with the functional layer, and then hot-pressing forming is carried out, and low-temperature forming of the plastic sheet is promoted through the extrusion filling effect of the flexible silicon rubber sheet.

Dull and stereotyped hot pressing mould includes cope match-plate pattern 1 and lower bolster 2, as shown in fig. 1 and fig. 2, be provided with the bed die of indent in the lower bolster 2, be provided with the evagination type formpiston that matches with the bed die in the cope match-plate pattern 1, as shown in fig. 3, the bed die includes the bottom plate portion 21 that matches with cell-phone bottom plate size and prevents falling frame slot part 22 of being connected with bottom plate portion 21, bottom plate portion 21 with prevent falling between the frame slot part 22 and connect through bending groove 23, all be provided with one on bottom plate portion 21 and the frame slot part 22 of preventing falling at least and prevent falling ARC groove 24. The design of the arch-shaped groove can form tension, so that the mobile phone is prevented from falling, the arch-shaped surface can deform and deform along with the curved surface of the mobile phone, the micro adjustment of the bottom plate, the frame and the distance between the bottom plate and the frame is realized, the size adjustment allowance of 1-2mm is provided, flat plate hot pressing molds can be shared for different styles of mobile phones with almost small differences in size, the mold manufacturing cost of products is saved, and the manufacturing cost is reduced. The structure of the rear cover type handset case is shown in fig. 4 and 5.

Die-cut former for to correspond on the plastic cell-phone shell after hot briquetting and listen the hole, the hole that charges, the power hole, the hole of making a video recording, the region of cell-phone function hole sites such as key hole carries out disposable cut-through, gets rid of unnecessary waste material, and will prevent falling the frame slot part and follow the recess of bending and obtain the finished product after buckling. The punching and forming equipment comprises a punch, a die-cutting machine, a laser machine, an engraving and milling machine and the like.

The 3D of this embodiment wraps plastic cell-phone shell entirely not only can regard as ordinary back lid formula cell-phone shell, still can regard as the cell-phone shell of folding cell-phone to and when using high definition material, integrated into one piece is for the integrative structure that wraps entirely that contains the screen protection film.

To the cell-phone shell of folding cell-phone, the bed die includes first bottom plate 31 and second bottom plate 32, and the outside of first bottom plate 31 is connected with first anti-falling frame slot part 33 through the groove of bending, and the outside of second bottom plate 32 is connected with second anti-falling frame slot part 34 through the groove of bending, all connects third anti-falling frame slot part 35 through the groove of bending between first bottom plate 31 and the second bottom plate 32. The plate heated press mold structure is shown in fig. 6 and the product drawing of the mobile phone case is shown in fig. 7.

For membrane shell integral type cell-phone shell, the bed die includes bottom plate 41 and screen protection lamina portion 42, connects the fourth through the bending groove respectively between bottom plate 41 and the screen protection lamina portion 42 and prevents falling frame slot portion 43, and the fifth prevents falling frame slot portion 44 is connected through the bending groove in the outside of bottom plate 41. Plate press mold structure figure 8 and product drawing of the phone case are shown in figure 9. According to the embodiment of the invention, the low-temperature hot-press molding process is adopted, so that the membrane-shell integrated mobile phone shell can be manufactured, and if the traditional high-temperature molding is adopted, the high temperature can cause the melting and deformation of the rubber material of the membrane, so that the membrane-shell integrated mobile phone shell cannot be manufactured.

The processing technology of the thin 3D full-plastic mobile phone shell processing system provided by the embodiment of the invention, referring to fig. 11, specifically includes:

plastic sheet decoration: decorating the plastic sheet by adopting a roll-to-roll or single sheet processing mode through various decoration processes such as UV transfer printing, film coating, printing, gold stamping, laser engraving, oil spraying, dyeing and the like;

and (3) rubberizing of the plastic sheet: bubble-free laminating or glue coating is carried out on the bottom of the decorated plastic sheet and a double-sided adhesive tape, and a functional layer is pasted, wherein the functional layer comprises a release film layer, a heat dissipation sheet layer, a leather layer or a flannelette layer; each layer of the manufactured plastic sheet material is as shown in fig. 10, and comprises a plastic sheet layer 51, a decoration layer 52, an adhesive layer 53 and a functional layer 54 (release film layer) which are sequentially arranged.

And (3) low-temperature hot-press forming: putting the plastic sheet pasted with the functional layer into a flat plate hot-pressing mould and carrying out hot-pressing molding on a flat plate hot press; further, when the plastic sheet pasted with the functional layer is placed in a flat plate hot-pressing mould and hot-pressed and formed on a flat plate hot-pressing machine, a layer of silicon rubber sheet with the thickness of 0.3-5mm is placed on the surface of the plastic sheet pasted with the functional layer, and then hot-pressing forming is carried out.

In low-temperature hot press molding, different hot press molding parameters are set for different materials, the hot press molding temperature is 65-75 ℃ for PET sheets, 55-65 ℃ for PC sheets and 55-60 ℃ for PVC and PP sheets; the flow speed of hot oil is 0.5 m/s; the molding pressure maintaining time is 2-10 seconds. The process is different from common infrared hot pressing, does not soften the sheet, and does not cause various deformation and flow marks.

Punching and forming: and cutting through the area corresponding to the mobile phone function hole site on the plastic mobile phone shell subjected to hot press molding at one time, removing redundant waste materials, and bending the anti-falling frame groove part along the bending groove to obtain a finished product.

The existing mobile phone shell preparation technology adopts high-temperature forming above 200 ℃, the rubberizing is generally carried out after the forming, because if rubberizing is carried out earlier, high temperature can lead to melting and deformation of glue, the embodiment is through low-temperature hot briquetting, can realize the low-temperature area of rubberizing hot briquetting technology of rubberizing hot briquetting earlier, and through when putting the plastic film between hard cope match-plate pattern and lower bolster, place the soft 0.3-5mm thick silica gel piece of one deck and carry out the hot pressing again in the plastic film top earlier, combine "hard + soft + hard" mould hot pressing mode like this, through the extrusion filling effect of flexible silica gel piece, promote the low-temperature shaping of plastic film.

For a bar phone shell, a specific processing technology includes:

1. and cutting the 0.135mm frosted PET material into required processing quantity and size.

2. Material decoration treatment: such as printing, electroplating, lines, etc., or directly using raw materials without decoration processing.

3. And (3) after the layer is processed, adhering a double-sided adhesive tape with the thickness of 0.05-0.08mm or coating glue and covering a release film layer for adhesive protection.

4. Punching through the positioning holes on the sheet.

5. Carrying out low-temperature hot pressing on the flat plate: and placing the sheet on a mold corresponding to the positioning hole, placing a layer of silicon rubber sheet with the thickness of 0.3-5mm above the sheet, and then performing 3D molding.

6. Punching and forming: cutting off the redundant materials, and simultaneously performing bending treatment on the corresponding surface.

7. And (6) inspecting and packaging.

Example two, for a foldable mobile phone case, the specific processing technique includes:

1. and cutting the 0.30mm frosted PC material into required processing quantity and size.

2. Material decoration treatment: such as printing, electroplating, lines, etc., or directly preparing raw materials without processing.

3. And (5) sticking a double-sided adhesive tape with the thickness of 0.05mm after the layer is processed, or coating glue and covering a release film layer for protecting the glue.

4. Punching through the positioning holes on the sheet.

5. Carrying out low-temperature hot pressing on the flat plate: designing a self-adjusting arch anti-falling structure at the folding position, designing the structure on a flat hot-pressing forming die, placing a sheet on the die corresponding to a positioning hole, placing a layer of silicon rubber sheet with the thickness of 0.3-5mm above the sheet, and then performing 3D forming.

6. Punching and forming: cutting off the redundant materials, and simultaneously performing bending treatment on the corresponding surface.

7. And (6) inspecting and packaging.

According to the light and thin 3D full-package plastic mobile phone shell processing system and the processing technology thereof, products with the same screen size close to that of the products can share a flat hot-pressing mold, a self-adjusting arched anti-falling structure is adopted in the mold structure, the size can be adjusted within 1-2mm, the mold manufacturing cost of the products is saved, and the manufacturing cost is reduced; the processing technology of the mobile phone shell product is improved by adopting a low-temperature hot-press molding technology without an injection molding technology and combining a mould hot-press mode of 'hard + soft + hard', so that 70% of power consumption of equipment is reduced, competitiveness of the mobile phone shell manufacturing industry is favorably improved, and cost is favorably reduced; the thickness of the product is reduced to 0.15-0.4MM from the minimum value of 0.4MM of injection molding, and the usage amount of the plastic material is reduced to 4-8 g from 10-30 g; the thickness and the weight of the product are reduced, the hand feeling is enhanced, the heat release of the mobile phone product is facilitated, and the interference of wireless and electromagnetic signals is reduced.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (10)

1. The utility model provides a frivolous 3D wraps plastic cell-phone shell system of processing entirely which characterized in that, the system includes:

the plastic sheet decorating equipment is used for decorating a plastic sheet by adopting a roll-to-roll or single sheet processing mode through various decorating processes, and the decorating processes comprise UV transfer printing, film coating, printing, gold stamping, laser etching, oil spraying and dyeing;

the plastic sheet gluing equipment is used for performing bubble-free gluing or glue coating on the bottom of the decorated plastic sheet and a double-sided adhesive tape and gluing a functional layer, wherein the functional layer comprises a release film layer, a heat dissipation sheet layer, a leather layer or a flannelette layer;

the low-temperature hot-press forming equipment comprises a flat hot-press machine and a flat hot-press die, and is used for placing a plastic sheet pasted with a functional layer into the flat hot-press die and carrying out hot-press forming on the flat hot-press machine, wherein the flat hot-press die comprises an upper template and a lower template, an inward concave female die is arranged in the lower template, an outward convex male die matched with the female die is arranged in the upper template, the female die comprises a bottom plate part matched with the size of a mobile phone bottom plate and an anti-falling frame groove part connected with the bottom plate part, the bottom plate part and the anti-falling frame groove part are connected through a bending groove, and at least one anti-falling arch groove is arranged on each of the bottom plate part;

the punching forming equipment is used for cutting through the area corresponding to the mobile phone function hole site on the plastic mobile phone shell after hot press forming at one time, removing redundant waste materials, and bending the anti-falling frame groove part along the bending groove to obtain a finished product.

2. The thin 3D all-plastic mobile phone shell processing system according to claim 1, wherein for a mobile phone shell of a folding mobile phone, the female mold comprises a first bottom plate portion and a second bottom plate portion, the outer side of the first bottom plate portion is connected with a first anti-falling frame groove portion through a bending groove, the outer side of the second bottom plate portion is connected with a second anti-falling frame groove portion through a bending groove, and the first bottom plate portion and the second bottom plate portion are connected with a third anti-falling frame groove portion through a bending groove.

3. The thin 3D all-in-one plastic mobile phone shell processing system according to claim 1, wherein for a membrane-shell integrated mobile phone shell, the female mold comprises a bottom plate portion and a screen protection layer portion, the bottom plate portion and the screen protection layer portion are connected with a fourth anti-falling frame slot portion through a bending groove, and the outer side of the bottom plate portion is connected with a fifth anti-falling frame slot portion through a bending groove.

4. The system of claim 1, wherein the plastic sheet decorating equipment comprises a printer, a coater, a transfer printer, and a fuel spray gun.

5. The thin, 3D, fully-enclosed plastic mobile phone case processing system according to claim 1, wherein the plastic piece rubberizing equipment comprises a film laminator and a glue coater.

6. The light, thin and 3D full-plastic mobile phone shell processing system according to claim 1, wherein the punching and forming equipment comprises a punch press, a die cutting machine, a laser machine and a carving machine.

7. The system of claim 1, wherein the plastic sheet with the functional layer is placed in a flat hot press mold and hot press molded on a flat hot press, and a silicone sheet with a thickness of 0.3-5mm is placed on the surface of the plastic sheet with the functional layer and then hot press molded.

8. The processing technology of the light, thin and 3D full-plastic mobile phone shell processing system according to any one of claims 1 to 7, wherein the processing technology comprises:

plastic sheet decoration: decorating the plastic sheet by adopting a roll-to-roll or single sheet processing mode through various decoration processes, wherein the decoration processes comprise UV transfer printing, film coating, printing, gold stamping, laser carving, oil spraying and dyeing;

and (3) rubberizing of the plastic sheet: carrying out bubble-free type laminating or glue coating on the bottom of the decorated plastic sheet and a double-sided adhesive tape and laminating a functional layer, wherein the functional layer comprises a release film layer, a heat dissipation sheet layer, a leather layer or a flannelette layer;

and (3) low-temperature hot-press forming: putting the plastic sheet pasted with the functional layer into a flat plate hot-pressing mould and carrying out hot-pressing molding on a flat plate hot press;

punching and forming: and cutting through the area corresponding to the mobile phone function hole site on the plastic mobile phone shell subjected to hot press molding at one time, removing redundant waste materials, and bending the anti-falling frame groove part along the bending groove to obtain a finished product.

9. The processing technology of the light, thin and 3D fully-enclosed plastic mobile phone shell processing system according to claim 8, wherein the processing technology further comprises:

and placing the plastic sheet pasted with the functional layer into a flat plate hot-pressing mould, and carrying out hot-pressing forming after a layer of silicon rubber sheet with the thickness of 0.3-5mm is placed on the surface of the plastic sheet pasted with the functional layer when the plastic sheet is subjected to hot-pressing forming on a flat plate hot-pressing machine.

10. The processing technology of the light, thin and 3D fully-enclosed plastic mobile phone shell processing system according to claim 8, wherein the processing technology further comprises:

in low-temperature hot press molding, different hot press molding parameters are set for different materials, the hot press molding temperature is 65-75 ℃ for PET sheets, 55-65 ℃ for PC sheets and 55-60 ℃ for PVC and PP sheets; the flow speed of hot oil is 0.5 m/s; the molding pressure maintaining time is 2-10 seconds.

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