CN112109351A - Manufacturing process of shell with optical heart rate induction sensor and shell - Google Patents
Manufacturing process of shell with optical heart rate induction sensor and shell Download PDFInfo
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- CN112109351A CN112109351A CN202010841456.6A CN202010841456A CN112109351A CN 112109351 A CN112109351 A CN 112109351A CN 202010841456 A CN202010841456 A CN 202010841456A CN 112109351 A CN112109351 A CN 112109351A
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- shell
- sheet
- heart rate
- sensor
- optical heart
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/006—Producing casings, e.g. accumulator cases
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of shell processing, and discloses a manufacturing process of a shell with an optical heart rate induction sensor, which comprises the following steps: s1, preparing a sheet-shaped base material; s2, making a gradient color on the sheet-shaped base material by using an offset press; s3, transferring the texture to the offset gradient color through the UV texture mold; s4, coating the texture of the sheet by using vacuum coating equipment; s5, printing ink is printed on the film of the sheet through a screen printing machine; s6, carrying out high-pressure or hot-press molding on the sheet to obtain a profiling sheet; s7, placing the profiling sheet into an injection mold cavity for injection molding to obtain a shell; s8, arranging an optical heart rate sensing sensor with a heart rate sensing function in the shell to obtain the shell with the heart rate sensing function. For people who have the demand, the wearing equipment does not need to be purchased independently, so that the living expense is saved; when going out, the mobile phone is a necessity and is generally forgotten to be carried; meanwhile, wearing equipment except a mobile phone does not need to be carried, and extra inconvenience cannot be added to a user.
Description
Technical Field
The invention relates to a manufacturing method of an electronic product shell, in particular to a manufacturing process of a shell with an optical heart rate sensing sensor and a heart rate sensing function and a shell manufactured by the process.
Background
The shell is an indispensable component of an electronic product, the shell which is manufactured by the existing process and is adopted on the existing electronic product has a single structure and a single function, electronic components are sealed in a closed space, the electronic components have a barrier function, and the electronic components rarely have functions except the barrier function, such as a heart rate sensing function, namely, the blood volume circulating at the wrist at a specific time is detected by using an optical heart rate sensing sensor through a technology of utilizing light to measure pulse; at present, in order to realize the function, a common method is to embed an optical heart rate sensing sensor in a wearable device, for example, an optical heart rate sensing sensor is embedded in a bracelet or a watch, and for people who have the demand, the wearable devices such as a smart bracelet and a smart watch need to be purchased separately, so that the living cost of the people is additionally increased; meanwhile, most people are not used to wear equipment such as watches and bracelets, so that the wearing equipment is easy to forget when going out, and the wearing equipment means that more articles need to be carried, so that inconvenience is brought to users.
Disclosure of Invention
In view of the above, one of the objectives of the present invention is to provide a manufacturing process of a housing with an optical heart rate sensing sensor, in which the optical heart rate sensing sensor is embedded in the housing, so that the housing has a heart rate sensing function; the second purpose is to provide a shell with heart rate sensing function.
One of the technical schemes adopted by the invention is a manufacturing process of a shell with an optical heart rate induction sensor, which comprises the following steps:
s1, preparing a sheet-shaped base material;
s2, making a gradient color on the sheet-shaped base material obtained in the S1 by using an offset press;
s3, transferring textures to the offset gradient color obtained in the S2 through a UV texture mold to obtain a textured sheet;
s4, coating a film on the texture of the sheet obtained in the S3 by using vacuum coating equipment;
s5, printing ink on the plated film of the sheet obtained in the step S4 through a screen printing machine;
s6, carrying out high-pressure or hot-press molding on the sheet obtained in the step S5 to enable the sheet to be matched with the shape of an injection mold, and cutting the edge excess material of the sheet to obtain a profiling sheet;
s7, placing the profiling sheet into a cavity of an injection mold for injection molding to obtain a shell;
s8, arranging an optical heart rate sensing sensor with a heart rate sensing function in the shell to obtain the shell with the heart rate sensing function.
The optical heart rate induction sensor can be arranged in the plate by adopting the following method:
the method of implanting optics rhythm of heart inductive sensor is CNC processing method, promptly, in S8, the process of implanting optics rhythm of heart inductive sensor in the shell does, puts the shell in CNC machining center' S cutter below, cuts out the space that is used for placing optics rhythm of heart inductive sensor through the position that optics rhythm of heart inductive sensor was placed to the cutter at the shell, then implants optics rhythm of heart inductive sensor in this space through the manual work to with the fixed optics rhythm of heart inductive sensor of high-temperature resistant glue, obtain the shell that has rhythm of heart inductive function.
In order to adapt the shape of the sheet to the mold cavity, a further profiling process is required, in S6, the sheet is IR baked to soften it to a degree of ductile stretching, and then blown out at high pressure into a desired shape or extruded out in a male-female mold form to obtain a profiled sheet.
Preferably, the temperature of the IR baking is 150 ℃ to 250 ℃, and the high pressure is 50MPA to 20 MPA.
In order to realize the second purpose, the technical scheme who adopts does, a shell is equipped with the perforation of installation rhythm of the heart inductive sensor in it, rhythm of the heart inductive sensor is formed by bottom plate, body integrated into one piece, and the bottom plate is laminated with the shell inner wall mutually, and the body inlays locates in the perforation, and the surface parallel and level of the surface of body and shell.
The invention has the beneficial effects that: the optical heart rate induction sensor is implanted into the shell by adopting the process of the invention, so that the shell has a heart rate induction function, compared with the prior similar technology, the shell manufactured by adopting the process has the heart rate induction function, when in use, the mobile phone assembled with the shell can be fixed at the wrist by adopting the bridle, so that the heart rate induction sensor arranged on the shell is contacted with the human body, thereby monitoring the blood flow condition at the wrist, finding out the problems possibly related to the heart in time and guiding the exercise of fitness enthusiasts; for people who have the demand, the wearing equipment does not need to be purchased independently, so that the living expense is saved; when going out, the mobile phone is a necessity and is generally forgotten to be carried; meanwhile, wearing equipment except a mobile phone does not need to be carried, and extra inconvenience cannot be added to a user.
Drawings
FIG. 1 is a process flow diagram of an embodiment of the invention;
FIG. 2 is a schematic view of an injection mold according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an apparatus used in an embodiment of the present invention;
FIG. 4 is an exploded perspective view of a housing obtained by the process of an embodiment of the present invention;
FIG. 5 is a cross-sectional view of FIG. 4;
fig. 6 is a partially enlarged view of fig. 5.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Except as specifically noted, the materials and equipment used in this example are commercially available.
Example 1
The embodiment provides a manufacturing process of a shell with an optical heart rate sensing sensor, as shown in fig. 1, comprising the following steps:
s1, preparing a sheet-shaped base material; the base material is made of a PMMA + PC mixture; PMMA means polymethyl methacrylate, and PC means polycarbonate.
S2, making a gradient color on the sheet-shaped base material obtained in the S1 by using an offset press; the specific process comprises the following steps of a, manufacturing a CTP plate by adopting the existing process, and outputting full or partial dots; b, adjusting the proportion of the printing ink, and adding an additive in proportion, wherein the additive is gloss oil and accounts for 20-60 percent; the ink and the water are mutually balanced on the printing plate to realize the dot transfer by two rules of oil-water incompatibility, printing plate and selective adsorption, and the effects of brightening and anti-reflection of the images of the printed matters are achieved.
S3, transferring textures to the offset gradient color obtained in the S2 through a UV texture mold to obtain a textured sheet; the method comprises the specific steps of pouring UV glue on a mold with textures, placing materials, uniformly coating a layer of UV glue on the whole surface of the UV texture by using a roller press, exposing the UV glue at 350nm by using a main spectrum of a metal halogen lamp, curing the UV glue after exposing for 3 seconds, tearing the materials, and transferring the texture of the UV glue onto a sheet.
At this step, the material is polyester acid ester (PC). The texture-rendering material is UV glue (acrylate).
S4, coating a film on the texture of the sheet obtained in the S3 by using vacuum coating equipment; the specific process is that the texture surface is deposited by using a coating device in an evaporation or sputtering mode under a vacuum environment, so that a coating layer with texture effect and color brightness protection is obtained.
S5, printing ink on the plated film of the sheet obtained in the step S4 through a screen printing machine; the specific process is that a 100-mesh screen is used for printing ink silk screen (the concentration of the adopted thinner is 8-15%, and the concentration of the adopted curing agent is 5-15%); baking for 10 minutes at the temperature of 50 ℃ every time of silk-screen printing, silk-screen printing for 2 times, baking for the last 1 time at the temperature of 60 ℃, and adjusting the time to 60 minutes to completely dry the silk-screen printed sheet, so that the adhesion of ink in the later process is prevented from being reduced, and the silk-screen printed sheet is obtained.
S6, in order to enable the shape of the silk-screen sheet to be suitable for the mold cavity, profiling processing is required to be further carried out, the silk-screen sheet obtained in the step S5 is subjected to high-pressure or hot-press forming so as to enable the silk-screen sheet to be suitable for the shape of an injection mold, and the edge excess material of the silk-screen sheet is cut to obtain a profiling sheet; specifically, in S6, the sheet is IR-baked to soften the sheet to a degree of ductile stretching, and then blown out at high pressure to a desired shape or extruded in a male-female mold form to obtain a shape-tracing sheet.
The temperature of the IR baking is 150 ℃, and the high pressure is 20 MPA.
S7, placing the profiling sheet into a cavity of an injection mold for injection molding to obtain a shell; the injection molding process is the same as the prior art, injection molding material rice is injected into a mold cavity in a screw heating hydraulic mode, the temperature of the screw is 230-360 ℃, and the action sequence is as follows: placing a sheet → closing a mold → performing molding → inverting → advancing a nozzle → injecting → maintaining pressure → retreating a nozzle → cooling → opening a mold → ejecting → opening a door → taking a workpiece → placing a sheet → closing a door → closing a mold. As shown in figure 2, the injection mold cavity is formed by placing a profiling sheet in a mold cavity 4, feeding by adopting a feeding screw 5, and arranging a feeding hole 6 for feeding on the feeding screw.
S8, arranging an optical heart rate sensing sensor with a heart rate sensing function in the shell to obtain the shell with the heart rate sensing function.
The method for implanting the optical heart rate sensor is a CNC machining method, that is, in S8, the process of implanting the optical heart rate sensor 1 into the housing 2 includes placing the housing 2 under the cutter 3 of the CNC machining center, cutting out a space 201 for placing the optical heart rate sensor at a position where the optical heart rate sensor is placed on the housing by the cutter 3, then manually implanting the optical heart rate sensor into the space, and fixing the optical heart rate sensor 1 by glue to obtain the housing with the heart rate sensing function, as shown in fig. 3-4.
Example 2
Compared with example 1, S1, S2, S4, S7, S8 are completely identical, with the difference that:
s3, transferring textures to the offset gradient color obtained in the S2 through a UV texture mold to obtain a textured sheet; the method comprises the specific processes of pouring UV glue on a mold with textures, placing materials, uniformly coating a layer of UV glue on the whole surface of the mold by using a roller press, exposing by using an LED lamp with a main spectrum of 350nm, tearing the materials after exposing for 3 seconds for curing, and transferring the textures of the UV glue onto a sheet.
In this step, the material is polyethylene terephthalate (PET). The texture-rendering material is UV glue (acrylate).
S5, printing ink on the plated film of the sheet obtained in the step S4 through a screen printing machine; the specific process is that a 300-mesh screen is used for carrying out printing ink silk-screen printing on the coating surface, the screen is baked for 40 minutes at the temperature of 70 ℃ every time of silk-screen printing, the silk-screen printing is carried out for 5 times, the baking temperature is 75 degrees in the last 1 time, the time is adjusted to be 90 minutes, the sheet after silk-screen printing is completely dried, and the adhesion force of printing ink in the later process is prevented from being reduced.
S6, in order to enable the shape of the silk-screen material to be suitable for the mold cavity, profiling processing is needed to be further carried out, the silk-screen sheet material obtained in the step S5 is subjected to high-pressure or hot-press forming to enable the silk-screen sheet material to be suitable for the shape of an injection mold, and the edge excess material of the silk-screen sheet material is cut to obtain a profiling sheet material; specifically, in S6, the screen-printed sheet is baked by IR to soften the sheet to a degree of ductile stretching, and then blown out at high pressure to a desired shape or pressed out in a male-female mold form to obtain a profiling sheet.
The temperature of the IR baking is 200 ℃, and the high pressure is 35 MPA.
Example 3
Compared with example 1, S1, S2, S4, S7, S8 are completely identical, with the difference that:
s3, transferring textures to the offset gradient color obtained in the S2 through a UV texture mold to obtain a textured sheet; the method comprises the specific processes of pouring UV glue on a mold with textures, placing materials, uniformly coating a layer of UV glue on the whole surface of the mold by using a roller press, exposing by using an LED lamp with a main spectrum of 350nm, tearing the materials after exposure for 5 seconds for curing, and transferring the textures of the UV glue onto a sheet.
In this step, the material is polymethyl methacrylate (PMMA). The texture-rendering material is UV glue (acrylate).
S5, printing ink on the plated film of the sheet obtained in the step S4 through a screen printing machine; the specific process is that a 600-mesh screen is used for carrying out printing ink silk-screen printing on the coating surface, the screen printing needs to be baked for 60 minutes at the temperature of 80 ℃ every time, the silk-screen printing is carried out for 8 times, the baking temperature is 85 degrees in the last 1 time, the time is adjusted to be 120 minutes, the sheet after silk-screen printing is completely dried, and the adhesion force of printing ink in the later process is prevented from being reduced.
S6, in order to enable the shape of the silk-screen sheet to be suitable for the mold cavity, profiling processing is required to be further carried out, the silk-screen sheet obtained in the step S5 is subjected to high-pressure or hot-press forming so as to enable the silk-screen sheet to be suitable for the shape of an injection mold, and the edge excess material of the silk-screen sheet is cut to obtain a profiling sheet; specifically, in S6, the sheet is IR-baked to soften the sheet to a degree of ductile stretching, and then blown out at high pressure to a desired shape or extruded in a male-female mold form to obtain a shape-tracing sheet.
The temperature of the IR baking is 250 ℃, and the high pressure is 50 MPA.
In all of the above three embodiments, the S6 is implemented by implanting the optical heart rate sensor through CNC machining, and the S3 may also be implemented by using polyvinyl chloride (PVA) in addition to the materials used in the above three embodiments.
In summary, compared with the prior art of the same type, the shell manufactured by the process has a heart rate sensing function, when the shell is used, the mobile phone provided with the shell can be fixed at the wrist by the belt, so that the heart rate sensing sensor arranged on the shell is contacted with a human body, the blood flow condition at the wrist is monitored, problems possibly related to the heart are found in time, and exercise guidance is provided for fitness enthusiasts; for people who have the demand, the wearing equipment does not need to be purchased independently, so that the living expense is saved; when going out, the mobile phone is a necessity and is generally forgotten to be carried; meanwhile, wearing equipment except a mobile phone does not need to be carried, and extra inconvenience cannot be added to a user.
As shown in fig. 4-6, the shell 2 made by the above process is provided with a through hole 201 therein, the heart rate sensor 1 is formed by integrally forming a bottom plate 101 and a body 102, the bottom plate 101 is attached to the inner wall of the shell 2, the body 102 is embedded in the through hole 201, and the outer surface of the body 102 is flush with the outer surface of the shell 2, so that the heart rate sensor 1 and the shell 2 have good integrity, and the heart rate sensor is bonded to the shell 2 through glue, and the joint of the two has good sealing performance.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A manufacturing process of a shell with an optical heart rate induction sensor is characterized by comprising the following steps:
s1, preparing a sheet-shaped base material;
s2, making a gradient color on the sheet-shaped base material obtained in the S1 by using an offset press;
s3, transferring textures to the offset gradient color obtained in the S2 through a UV texture mold to obtain a textured sheet;
s4, coating a film on the texture of the sheet obtained in the S3 by using vacuum coating equipment;
s5, printing ink on the plated film of the sheet obtained in the step S4 through a screen printing machine;
s6, carrying out high-pressure or hot-press molding on the sheet obtained in the step S5 to enable the sheet to be matched with the shape of an injection mold, and cutting the edge excess material of the sheet to obtain a profiling sheet;
s7, placing the profiling sheet into a cavity of an injection mold for injection molding to obtain a shell;
s8, arranging an optical heart rate sensing sensor with a heart rate sensing function in the shell to obtain the shell with the heart rate sensing function.
2. The manufacturing process of the shell with the optical heart rate sensor according to claim 1, wherein in the step S8, the optical heart rate sensor is implanted into the shell by placing the shell under a cutter of a CNC machining center, cutting a space for placing the optical heart rate sensor at a position where the optical heart rate sensor is placed into the shell by the cutter, then manually implanting the optical heart rate sensor into the space, and fixing the optical heart rate sensor with high temperature resistant glue to obtain the shell with the heart rate sensing function.
3. The process of claim 1, wherein in step S6, the sheet is IR baked to soften it to a degree of stretching, and then blown at high pressure to a desired shape or extruded in a male-female mold form to obtain a profiling sheet.
4. The method as claimed in claim 3, wherein the temperature of the IR baking is 150 ℃ to 250 ℃ and the high pressure is 50MPA to 20 MPA.
5. A shell manufactured by the process as claimed in any one of claims 1 to 4, wherein a through hole for installing a heart rate sensing sensor is formed in the shell, the heart rate sensing sensor is formed by integrally molding a bottom plate and a body, the bottom plate is attached to the inner wall of the shell, the body is embedded in the through hole, and the outer surface of the body is flush with the outer surface of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010841456.6A CN112109351B (en) | 2020-08-20 | 2020-08-20 | Manufacturing process of shell with optical heart rate induction sensor and shell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010841456.6A CN112109351B (en) | 2020-08-20 | 2020-08-20 | Manufacturing process of shell with optical heart rate induction sensor and shell |
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| CN112109351A true CN112109351A (en) | 2020-12-22 |
| CN112109351B CN112109351B (en) | 2022-06-10 |
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| CN202010841456.6A Active CN112109351B (en) | 2020-08-20 | 2020-08-20 | Manufacturing process of shell with optical heart rate induction sensor and shell |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205729351U (en) * | 2016-05-19 | 2016-11-30 | 西安交通大学第一附属医院 | A kind of can position and the Intelligent heart rate alarm of two-way call |
| CN110758001A (en) * | 2018-07-27 | 2020-02-07 | Oppo广东移动通信有限公司 | Housing, electronic device, and method for manufacturing housing |
| CN111315169A (en) * | 2020-03-09 | 2020-06-19 | Oppo广东移动通信有限公司 | Shell assembly, electronic equipment and manufacturing method of shell assembly |
| CN111347703A (en) * | 2018-12-24 | 2020-06-30 | 深圳市好年璟科技有限公司 | Manufacturing method of mobile phone rear cover with 3D effect |
-
2020
- 2020-08-20 CN CN202010841456.6A patent/CN112109351B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205729351U (en) * | 2016-05-19 | 2016-11-30 | 西安交通大学第一附属医院 | A kind of can position and the Intelligent heart rate alarm of two-way call |
| CN110758001A (en) * | 2018-07-27 | 2020-02-07 | Oppo广东移动通信有限公司 | Housing, electronic device, and method for manufacturing housing |
| CN111347703A (en) * | 2018-12-24 | 2020-06-30 | 深圳市好年璟科技有限公司 | Manufacturing method of mobile phone rear cover with 3D effect |
| CN111315169A (en) * | 2020-03-09 | 2020-06-19 | Oppo广东移动通信有限公司 | Shell assembly, electronic equipment and manufacturing method of shell assembly |
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| CN112109351B (en) | 2022-06-10 |
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