CN111604649A - Laser etching process for notebook keyboard shell for electronic shell production - Google Patents
Laser etching process for notebook keyboard shell for electronic shell production Download PDFInfo
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- CN111604649A CN111604649A CN202010497205.0A CN202010497205A CN111604649A CN 111604649 A CN111604649 A CN 111604649A CN 202010497205 A CN202010497205 A CN 202010497205A CN 111604649 A CN111604649 A CN 111604649A
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- shell
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
Abstract
The invention discloses a laser etching process for notebook keyboard shells for electronic shell production, which belongs to the technical field of electronic product production and processing, and comprises the steps of surface cleaning treatment, surface polishing treatment, surface sand blasting treatment, surface paint spraying treatment, side laser etching treatment, front laser etching treatment, structure laser etching treatment, appearance detection, film pasting and packaging and the like. Saving the production cost and time and being suitable for large-scale popularization and use.
Description
Technical Field
The invention relates to the technical field of electronic product production and processing, in particular to a laser engraving process for a notebook keyboard shell for electronic shell production.
Background
A notebook computer, called a notebook for short, also called a portable computer, a laptop computer, a palmtop computer or a laptop computer, has the greatest characteristic of small and exquisite body, is a small and portable personal computer compared with a PC, and generally weighs 1-3 kg. The current trend is to have smaller and smaller sizes, lighter and lighter weights, and more powerful functions. In order to reduce the size, notebook computers today use liquid crystal displays. Some have a touch pad or touch point as a pointing device in addition to the keyboard.
The main difference between the notebook and the PC is that it is portable, and has different requirements for the motherboard, CPU, memory, graphics card, and hard disk capacity. Although the notebook computer is very portable, the applicability of the notebook computer is not suspected at all, and the notebook computer can be fully competent in daily operation and basic business, entertainment and operation. The current notebook computers are differentiating different trends according to the purposes, and the online books tend to be used in daily office and movies; the commercial book tends to be stable, low in power consumption and longer in endurance time; the household notebook has good performance and high cost performance, and the game book is specially used for catering to the outgoing game of a small number of people; the fever level configuration has good entertainment experience effect, low price and unsatisfactory battery endurance time.
In the production process of the notebook computer, the keyboard shell needs to be produced, in the processing process of the keyboard shell, the shell needs to be subjected to laser etching processing, the laser etching is a surface treatment process and can be used for printing characters, printing patterns and the like on a plastic panel, the existing laser etching processing process is lack of a pretreatment process or disordered in operation steps, or the pretreatment process is not standard, and parameters of the process are not well standardized, so that the product quality is difficult to ensure, and further improvement is needed.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a laser etching process for a notebook keyboard shell for electronic shell production.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
1. A laser etching process for notebook keyboard shells for electronic shell production is characterized in that: the method comprises the following steps:
s1, surface cleaning treatment: cleaning and degreasing the surface of the shell after the stamping forming;
s2, surface polishing treatment: polishing the surface of the shell by adopting an acid solution;
s3, surface sand blasting: the shell with the cleaned surface is subjected to sand blasting treatment, so that the surface cleanliness of the shell is improved;
s4, surface painting treatment: spraying paint on the surface of the outer shell, and putting the outer shell into a baking machine for drying after the paint is sprayed, so that the paint layer is fixed on the surface of the outer shell;
s5, side edge laser etching treatment: placing the shell after paint spraying on a side edge laser etching device, confirming the debugged first piece, starting laser etching after debugging, confirming the color of the shell after laser etching according to a sample, confirming the position degree according to a film, completing side edge laser etching, and placing the shell after laser etching on a white foam tape to enter the next process;
s6, front laser etching treatment: placing the shell with the side laser etched on a front laser etching device, confirming a debugged first piece, starting laser etching after debugging, confirming the color of the shell after laser etching according to a sample, confirming the position degree according to a film, completing front laser etching, placing the shell after laser etching on a white foam tape, and entering the next process;
s7, carrying out structural laser etching treatment: placing the shell with the front laser etching completed on a front laser etching device, confirming a debugged first piece, starting laser etching after debugging, confirming the color of the shell according to a sample after laser etching, confirming the position degree according to a film, completing the front laser etching, placing the shell with the laser etching on a white foam tape, and entering the next process;
s8, appearance detection: detecting the shell after the laser etching is finished, and checking the appearance and the side edge of the shell to determine whether the phenomena of laser etching leakage and laser etching non-etching penetration exist;
s9, film pasting and packaging: and (5) pasting films around the qualified shell and packaging.
Further, in the step S1, the shell after punch forming is placed in an ultrasonic cleaning machine, alkaline degreasing agent and water are added, the shell is soaked and cleaned for 5-10min, then the shell is placed under a high-pressure water gun for washing for 2-3 times, and the shell is taken out and drained;
the temperature of the ultrasonic wave during soaking and cleaning is 60-80 ℃, and the ultrasonic power is 180-250W.
Further, in the step S2, the acidic solution is a mixed solution of a phosphoric acid solution and a sulfuric acid solution in a mass ratio of 1-3:1, wherein the phosphoric acid solution is a phosphoric acid aqueous solution with a mass fraction of 15-18%, and the sulfuric acid solution is a sulfuric acid aqueous solution with a mass fraction of 10-15%.
Further, in the step S3, the shell is sandblasted by using a full-automatic sandblasting machine, wherein the sandblasting air pressure is controlled to be 0.5 to 0.7MPa in the sandblasting process, and one of copper ore sand, quartz sand, carborundum, iron sand and Hainan sand is selected for sandblasting.
Further, the S4 specifically includes the following steps:
s41, placing the shell on a glue spreader, and spraying a resin glue layer on the surface of the shell;
s42, placing the shell sprayed with the resin adhesive layer in a baking oven, baking for 15-30min, taking out, and naturally cooling to normal temperature to solidify the resin adhesive layer;
s43, placing the solidified shell on a paint spraying mechanism, and spraying a mirror paint layer on the surface of the resin adhesive layer;
s44, placing the shell sprayed with the mirror paint layer into a baking oven, and baking for 20-40min to solidify the mirror paint layer.
Further, in S41, the resin adhesive layer includes a tackifying resin, a curing agent, and a diluent, where the tackifying resin is one of gum rosin, tall oil rosin, and wood rosin, and the weight ratio of the tackifying resin, the curing agent, and the diluent is 30-40: 1: 1-2.
Further, the thickness of the resin glue layer is 15-25 μm.
Further, in the step S43, the mirror paint layer includes mirror ink, a curing agent and a diluent, and the mass ratio of the mirror ink, the curing agent and the diluent is 10-15: 1: 0.5-1.
Further, in S5-S7, when performing first-piece debugging, the position is controlled according to film control, and the color is controlled according to sample control.
Further, in S7, after the front laser etching is completed, the housing is wiped, specifically, dust on the surface of the laser etching area is wiped with alcohol.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) according to the laser etching process for the notebook keyboard shell, the shell is cleaned, polished and subjected to sand blasting treatment before laser etching, and step-by-step laser etching is performed during laser etching, so that the yield of the shell is effectively improved, the efficiency of laser etching can be effectively improved by reasonably standardizing the operation sequence, parameter conditions and cautions of each step, the production cost and time are saved, and the laser etching process is suitable for large-scale popularization and use.
(2) According to the laser etching process for the notebook keyboard shell, the shell is cleaned, polished and subjected to sand blasting treatment before laser etching, so that the glossiness and cleanness of the surface of the shell are greatly improved, and the quality of a finished product is effectively improved.
(3) According to the laser etching process for the notebook keyboard shell, the surface of the shell is sprayed with paint before laser etching, a mirror paint layer is sprayed on the surface of the shell, and then laser etching is performed on the mirror paint layer to form hollow patterns, so that the shell is more attractive.
(4) According to the laser carving process for the notebook keyboard shell, glue is coated on the surface of the shell and solidified during paint spraying, paint is sprayed on the solidified tackifying resin glue layer, so that the whole paint layer is stably fixed on the surface of the shell, the stability is high, the phenomenon of falling-off cannot occur, and the quality of the finished shell is guaranteed.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
Example 1:
referring to fig. 1, a laser etching process for a notebook keyboard housing for electronic housing production includes the following steps:
s1, surface cleaning treatment: cleaning and degreasing the surface of the shell after the stamping forming;
s2, surface polishing treatment: polishing the surface of the shell by adopting an acid solution;
s3, surface sand blasting: the shell with the cleaned surface is subjected to sand blasting treatment, so that the surface cleanliness of the shell is improved;
s4, surface painting treatment: spraying paint on the surface of the outer shell, and putting the outer shell into a baking machine for drying after the paint is sprayed, so that the paint layer is fixed on the surface of the outer shell;
s5, side edge laser etching treatment: placing the shell after paint spraying on a side edge laser etching device, confirming the debugged first piece, starting laser etching after debugging, confirming the color of the shell after laser etching according to a sample, confirming the position degree according to a film, completing side edge laser etching, and placing the shell after laser etching on a white foam tape to enter the next process;
s6, front laser etching treatment: placing the shell with the side laser etched on a front laser etching device, confirming a debugged first piece, starting laser etching after debugging, confirming the color of the shell after laser etching according to a sample, confirming the position degree according to a film, completing front laser etching, placing the shell after laser etching on a white foam tape, and entering the next process;
s7, carrying out structural laser etching treatment: placing the shell with the front laser etching completed on a front laser etching device, confirming a debugged first piece, starting laser etching after debugging, confirming the color of the shell according to a sample after laser etching, confirming the position degree according to a film, completing the front laser etching, placing the shell with the laser etching on a white foam tape, and entering the next process;
s8, appearance detection: detecting the shell after the laser etching is finished, and checking the appearance and the side edge of the shell to determine whether the phenomena of laser etching leakage and laser etching non-etching penetration exist;
s9, film pasting and packaging: and (5) pasting films around the qualified shell and packaging.
S1, placing the stamped shell in an ultrasonic cleaning machine, adding an alkaline degreasing agent and water, soaking and cleaning for 5-10min, placing under a high-pressure water gun for washing for 2-3 times, taking out and draining;
the temperature of the ultrasonic wave during soaking and cleaning is 60-80 ℃, and the ultrasonic power is 180-250W.
In S2, the acidic solution is a mixed solution of phosphoric acid solution and sulfuric acid solution in a mass ratio of 1-3:1, wherein the phosphoric acid solution is a phosphoric acid aqueous solution with a mass fraction of 15-18%, and the sulfuric acid solution is a sulfuric acid aqueous solution with a mass fraction of 10-15%.
And S3, performing sand blasting on the shell by using a full-automatic sand blasting machine, wherein the sand blasting air pressure is controlled to be 0.5-0.7MPa in the sand blasting process, and the sand blasting process selects one of copper ore sand, quartz sand, carborundum, iron sand and Hainan sand.
S4 specifically includes the following steps:
s41, placing the shell on a glue spreader, and spraying a resin glue layer on the surface of the shell;
s42, placing the shell sprayed with the resin adhesive layer in a baking oven, baking for 15-30min, taking out, and naturally cooling to normal temperature to solidify the resin adhesive layer;
s43, placing the solidified shell on a paint spraying mechanism, and spraying a mirror paint layer on the surface of the resin adhesive layer;
s44, placing the shell sprayed with the mirror paint layer into a baking oven, and baking for 20-40min to solidify the mirror paint layer.
In S41, the resin adhesive layer comprises tackifying resin, curing agent and diluent, wherein the tackifying resin is one of gum rosin, tall oil rosin and wood rosin, and the weight ratio of the tackifying resin, the curing agent and the diluent is 30-40: 1: 1-2.
The thickness of the resin glue layer is 15-25 μm.
In S43, the mirror paint layer comprises mirror ink, a curing agent and a diluent, wherein the mass ratio of the mirror ink to the curing agent to the diluent is 10-15: 1: 0.5-1.
In S5-S7, when the first piece is debugged, the position is controlled according to the film, and the color is controlled according to the sample.
In S7, after the front laser etching is completed, wiping the shell, and specifically wiping dust on the surface of the laser etching area by using alcohol.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (10)
1. A laser etching process for notebook keyboard shells for electronic shell production is characterized in that: the method comprises the following steps:
s1, surface cleaning treatment: cleaning and degreasing the surface of the shell after the stamping forming;
s2, surface polishing treatment: polishing the surface of the shell by adopting an acid solution;
s3, surface sand blasting: the shell with the cleaned surface is subjected to sand blasting treatment, so that the surface cleanliness of the shell is improved;
s4, surface painting treatment: spraying paint on the surface of the outer shell, and putting the outer shell into a baking machine for drying after the paint is sprayed, so that the paint layer is fixed on the surface of the outer shell;
s5, side edge laser etching treatment: placing the shell after paint spraying on a side edge laser etching device, confirming the debugged first piece, starting laser etching after debugging, confirming the color of the shell after laser etching according to a sample, confirming the position degree according to a film, completing side edge laser etching, and placing the shell after laser etching on a white foam tape to enter the next process;
s6, front laser etching treatment: placing the shell with the side laser etched on a front laser etching device, confirming a debugged first piece, starting laser etching after debugging, confirming the color of the shell after laser etching according to a sample, confirming the position degree according to a film, completing front laser etching, placing the shell after laser etching on a white foam tape, and entering the next process;
s7, carrying out structural laser etching treatment: placing the shell with the front laser etching completed on a front laser etching device, confirming a debugged first piece, starting laser etching after debugging, confirming the color of the shell according to a sample after laser etching, confirming the position degree according to a film, completing the front laser etching, placing the shell with the laser etching on a white foam tape, and entering the next process;
s8, appearance detection: detecting the shell after the laser etching is finished, and checking the appearance and the side edge of the shell to determine whether the phenomena of laser etching leakage and laser etching non-etching penetration exist;
s9, film pasting and packaging: and (5) pasting films around the qualified shell and packaging.
2. The laser etching process for the notebook keyboard shell for electronic shell production according to claim 1, characterized in that: in the step S1, placing the stamped shell in an ultrasonic cleaning machine, adding an alkaline degreasing agent and water, soaking and cleaning for 5-10min, placing under a high-pressure water gun for washing for 2-3 times, taking out and draining;
the temperature of the ultrasonic wave during soaking and cleaning is 60-80 ℃, and the ultrasonic power is 180-250W.
3. The laser etching process for the notebook keyboard shell for electronic shell production according to claim 1, characterized in that: in the S2, the acidic solution is a mixed solution of a phosphoric acid solution and a sulfuric acid solution in a mass ratio of 1-3:1, wherein the phosphoric acid solution is a phosphoric acid aqueous solution with a mass fraction of 15-18%, and the sulfuric acid solution is a sulfuric acid aqueous solution with a mass fraction of 10-15%.
4. The laser etching process for the notebook keyboard shell for electronic shell production according to claim 1, characterized in that: and in the step S3, the shell is subjected to sand blasting by using a full-automatic sand blasting machine, the sand blasting air pressure is controlled to be 0.5-0.7MPa in the sand blasting process, and one of copper ore sand, quartz sand, carborundum, iron sand and Hainan sand is selected for sand blasting processing.
5. The laser etching process for the notebook keyboard shell for electronic shell production according to claim 1, characterized in that: the S4 specifically includes the following steps:
s41, placing the shell on a glue spreader, and spraying a resin glue layer on the surface of the shell;
s42, placing the shell sprayed with the resin adhesive layer in a baking oven, baking for 15-30min, taking out, and naturally cooling to normal temperature to solidify the resin adhesive layer;
s43, placing the solidified shell on a paint spraying mechanism, and spraying a mirror paint layer on the surface of the resin adhesive layer;
s44, placing the shell sprayed with the mirror paint layer into a baking oven, and baking for 20-40min to solidify the mirror paint layer.
6. The laser etching process for the notebook keyboard shell for electronic shell production according to claim 5, characterized in that: in the S41, the resin adhesive layer comprises tackifying resin, a curing agent and a diluent, wherein the tackifying resin is one of gum rosin, tall oil rosin and wood rosin, and the weight ratio of the tackifying resin, the curing agent and the diluent is 30-40: 1: 1-2.
7. The laser etching process for the notebook keyboard shell for electronic shell production according to claim 6, characterized in that: the thickness of the resin glue layer is 15-25 μm.
8. The laser etching process for the notebook keyboard shell for electronic shell production according to claim 5, characterized in that: in S43, the mirror paint layer comprises mirror ink, a curing agent and a diluent, and the mass ratio of the mirror ink to the curing agent to the diluent is 10-15: 1: 0.5-1.
9. The laser etching process for the notebook keyboard shell for electronic shell production according to claim 1, characterized in that: in S5-S7, when the first piece is debugged, the position is controlled according to the film, and the color is controlled according to the sample.
10. The laser etching process for the notebook keyboard shell for electronic shell production according to claim 1, characterized in that: in S7, after the front laser etching is completed, wiping the shell, specifically wiping dust on the surface of the laser etching area with alcohol.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010497205.0A CN111604649A (en) | 2020-06-04 | 2020-06-04 | Laser etching process for notebook keyboard shell for electronic shell production |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010497205.0A CN111604649A (en) | 2020-06-04 | 2020-06-04 | Laser etching process for notebook keyboard shell for electronic shell production |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104559795A (en) * | 2014-12-24 | 2015-04-29 | 广西科茂林化有限公司 | High-temperature-resistant rosin tackifying resin and preparation method thereof |
| CN105072228A (en) * | 2015-09-06 | 2015-11-18 | 深圳市中联讯科技有限公司 | Mobile phone surface shell and processing method thereof |
| CN105691074A (en) * | 2016-02-18 | 2016-06-22 | 钟治超 | Pattern laser etching process for surface of TPU rubber product |
| CN106163150A (en) * | 2016-06-29 | 2016-11-23 | 深圳市金立通信设备有限公司 | The processing method of a kind of terminal shell, terminal shell and terminal |
| CN109295354A (en) * | 2018-12-06 | 2019-02-01 | 广东省材料与加工研究所 | The anodizing solution and method for oxidation of a kind of high-strength aluminum alloy and application |
| CN110539127A (en) * | 2018-05-29 | 2019-12-06 | 东莞市环力智能科技有限公司 | Laser engraving forming process |
-
2020
- 2020-06-04 CN CN202010497205.0A patent/CN111604649A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104559795A (en) * | 2014-12-24 | 2015-04-29 | 广西科茂林化有限公司 | High-temperature-resistant rosin tackifying resin and preparation method thereof |
| CN105072228A (en) * | 2015-09-06 | 2015-11-18 | 深圳市中联讯科技有限公司 | Mobile phone surface shell and processing method thereof |
| CN105691074A (en) * | 2016-02-18 | 2016-06-22 | 钟治超 | Pattern laser etching process for surface of TPU rubber product |
| CN106163150A (en) * | 2016-06-29 | 2016-11-23 | 深圳市金立通信设备有限公司 | The processing method of a kind of terminal shell, terminal shell and terminal |
| CN110539127A (en) * | 2018-05-29 | 2019-12-06 | 东莞市环力智能科技有限公司 | Laser engraving forming process |
| CN109295354A (en) * | 2018-12-06 | 2019-02-01 | 广东省材料与加工研究所 | The anodizing solution and method for oxidation of a kind of high-strength aluminum alloy and application |
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