CN108620485B - Mold and method for forming elliptical-sphere hollow-mesh metal sound box net cover - Google Patents
Mold and method for forming elliptical-sphere hollow-mesh metal sound box net cover Download PDFInfo
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- CN108620485B CN108620485B CN201810315929.1A CN201810315929A CN108620485B CN 108620485 B CN108620485 B CN 108620485B CN 201810315929 A CN201810315929 A CN 201810315929A CN 108620485 B CN108620485 B CN 108620485B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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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
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
- B21D31/04—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/02—Local etching
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention discloses a die for forming an oval-shaped hollow reticular metal sound net cover, which comprises a lower die base, wherein a lower die is fixedly arranged on the lower die base, a forming cavity matched with the oval-shaped hollow reticular metal sound net cover structure is formed in the lower die, an elastic rubber upper die core capable of being movably implanted into the forming cavity is arranged at the upper end of the lower die, a pressure rod capable of driving the elastic rubber upper die core to move and/or extruding the elastic rubber upper die core to expand is arranged on the elastic rubber upper die core, an upper die fixedly connected with the pressure rod is arranged at the upper end of the pressure rod, and an upper die base is arranged at the; during forming, the to-be-formed sound box mesh cover is sleeved on the elastic rubber upper die core and is carried by the elastic rubber upper die core to be implanted into the forming cavity from top to bottom, the upper die vertically moves downwards to enable the pressing rod to vertically extrude the elastic rubber upper die core, the elastic rubber upper die core is pressed to expand and extrude the to-be-formed sound box mesh cover outwards, and the forming cavity of the lower die is matched to complete forming of the elliptic sphere hollow reticular metal sound box mesh cover.
Description
Technical Field
The invention relates to the field of metal material shaping, in particular to a die and a method for forming an elliptic sphere hollow reticular metal sound box mesh.
Background
In the existing technical field of metal material processing, the stamping die is used in the stamping forming process of various metal material shells due to the advantages of low stamping process cost, stability after the stamping die is formed and the like. However, the existing stamping die can only process products with relatively regular shapes such as cuboids, cylinders and the like, and the oval sphere (refer to fig. 1) can not be processed and produced directly through the stamping process. In order to meet the requirement of diversified customer structures without increasing the cost, the creators of the prior art design a die and a method for forming an oval-shaped hollow-mesh metal sound enclosure, and the oval-shaped and spherical hollow-mesh products can be processed by a stamping process.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a die and a method for forming an oval sphere hollow mesh-shaped metal sound box mesh enclosure, which solve the problem that oval and sphere hollow mesh-shaped products cannot be formed by a stamping process in the prior art.
According to the first aspect of the invention, the technical scheme adopted by the invention is that the die for forming the elliptic sphere hollow reticular metal sound net cover comprises a lower die base, a lower die is fixedly arranged on the lower die base, a forming cavity matched with the elliptic sphere hollow reticular metal sound net cover structure is formed on the lower die, an elastic rubber upper die core capable of being movably embedded into the forming cavity is arranged at the upper end of the lower die, a pressure rod capable of driving the elastic rubber upper die core to move and/or extruding the elastic rubber upper die core to expand is arranged on the elastic rubber upper die core, an upper die fixedly connected with the pressure rod is arranged at the upper end of the pressure rod, an upper die base is arranged at the upper end of the upper die, when the die is formed, the sound net cover to be formed is sleeved on the elastic rubber upper die core and is embedded into the forming cavity from top to bottom by the elastic rubber upper die core, the upper die vertically moves downwards to enable the pressure rod, the elastic rubber upper die core compresses and expands and extrudes the sound box mesh to be formed outwards, and the elastic rubber upper die core is matched with the forming cavity of the lower die to complete forming of the elliptic sphere hollow mesh-shaped metal sound box mesh.
As a further elaboration of the above technical solution,
in the technical scheme, the forming cavity comprises a first forming part and a second forming part, the first forming part is positioned at the upper part of the forming cavity, and the first forming part is a circular truncated cone-shaped cavity; the second forming part is positioned at the lower part of the forming cavity and is an elliptic platform-shaped cavity.
In the above technical scheme, the lower die and the upper die are respectively a steel lower die and a steel upper die.
According to the die, the upper die core of the existing stamping die adopts the elastic expansion rubber body, after the cylindrical blank to be stamped is pressed into the forming cavity of the lower die, the elastic expansion rubber body is pressed into the elastic expansion rubber body in a matching manner by the aid of the pressure rod, so that the acoustic screen to be formed is extruded outwards by the elastic expansion rubber body, and the elliptical hollow reticular metal acoustic screen is formed by the aid of the forming cavity of the lower die.
According to the second aspect of the invention, the technical scheme adopted by the invention is that the method for forming the elliptic sphere hollow reticular metal sound box cover comprises the following steps:
step A. cutting
Cutting the metal blank into a sheet blank to be formed by using a punch;
step B etching
Cleaning, namely cleaning the cut sheet blank to be formed by utilizing an ultrasonic cleaner in combination with a cleaning solution to remove oil stains on the surface of the sheet blank;
ii, pretreatment in etching: sequentially coating photosensitive ink, pre-drying, exposing and developing the sheet blank to be formed;
conveying the sheet blank to be formed after the etching pretreatment to a chemical etching machine, and etching and forming hollow mesh holes with matched shapes and numbers on the sheet blank to be formed by matching chemical etching liquid;
iv, etching post-treatment, namely soaking the sheet blank to be formed, etched with the hollow mesh holes, into a deinking solution to remove ink, and then drying by adopting hot air;
step C, primary forming semi-circular truncated cone-shaped sound box mesh enclosure
Stamping and bending the to-be-formed sheet blank etched with the hollow mesh holes into a cylindrical sound net cover by using a stamping machine matched with a stamping die;
carrying out seamless welding on the joint seam of the cylindrical sound net cover placed on the matched fixed jig by using a seamless welding machine, and forming the cylindrical sound net cover formed by stamping and bending into an integral cylindrical sound net cover;
step D, expansion punch forming
Sleeving the cylindrical sound net cover which is formed into a whole in the beginning on an elastic rubber upper die core of the die for forming the elliptic sphere hollow reticular metal sound net cover in the first aspect;
and ii, starting a punching machine provided with a die for forming the elliptical sphere hollow reticular metal sound net cover, driving the upper die, the pressure rod and the elastic rubber upper die core to vertically move by the punching machine, implanting the cylindrical sound net cover which is formed into a whole body in the forming cavity, driving the pressure rod to extrude the elastic rubber upper die core by the punching machine so as to press and expand the elastic rubber upper die core and extrude the cylindrical sound net cover outwards, and extruding the cylindrical sound net cover outwards and clinging to the forming cavity to complete the expansion punch forming of the elliptical sphere hollow reticular metal sound net cover.
As a further elaboration of the above technical solution,
in the technical scheme, in the step B, the cleaning liquid injected into the ultrasonic cleaning machine is alkaline cleaning liquid comprising sodium hydroxide, sodium carbonate and sodium dodecyl benzene sulfonate, and the cleaning time is 280-320 s.
In the technical scheme, in the step B, the pre-drying is performed by hot air pre-drying or a vulcanizing machine, the drying temperature is 30-40 ℃, and the drying time is 10-15 min.
In the above technical scheme, in the step B, the chemical etching solution is an alkaline copper chloride etching solution or an acidic copper chloride etching solution, and the temperature of the etching bath of the chemical etching machine and the chemical etching solution is set to 30-45 ℃ during etching.
In the above technical scheme, in the step B, the deinking solution is 20% sodium hydroxide solution, and in the etching post-treatment step, the time for immersing the sheet blank to be formed, in which the hollow mesh holes are etched, into the deinking solution is 8min to 10min, and the temperature of the deinking solution is set to 50 ℃ to 60 ℃.
In the technical scheme, in the step D, the impact pressure of the pressing rod pressed into the upper die core of the elastic rubber by the punching machine is 60-80 tons, the punching stroke is 100-120 mm, and the impact speed is 3-5 cm/s.
In the technical scheme, the metal blank is a precise SPCC nickel-plated steel strip with the thickness of 0.5-0.8 mm
Compared with the prior art, the method for forming the elliptical hollow reticular metal sound box net cover has the advantages that continuous automatic stamping is realized by matching a stamping process with an expansion die, so that the elliptical hollow reticular metal sound box net cover is formed, the forming efficiency is high, and the elliptical hollow reticular metal sound box net cover processed by the expansion die is attractive in appearance, uniform in mesh and high in stability.
Drawings
FIG. 1 is a schematic view of an elliptic hollow metal mesh sound enclosure formed by the mold and method of the present invention;
FIG. 2 is a perspective view of a mold for molding an oval-shaped hollow metal mesh enclosure for an audio device according to the present invention;
FIG. 3 is an exploded view of FIG. 2;
FIG. 4 is a cross-sectional view of FIG. 3;
FIG. 5 is a flow chart illustrating a method for forming an oval hollow metal mesh sound enclosure according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
Referring to fig. 1-4, a mold for forming an oval hollow metal mesh acoustic enclosure comprises a lower mold base 001, wherein a lower mold 002 is fixedly arranged on the lower mold base 001, a forming cavity 003 structurally matched with the oval hollow metal mesh acoustic enclosure (not shown in the drawings) is formed on the lower mold 002, an elastic rubber upper mold core 004 movably embedded in the forming cavity 003 is arranged at the upper end of the lower mold 002, a pressure rod 005 capable of driving the elastic rubber upper mold core 004 to move and/or extrude the elastic rubber upper mold core 004 to expand is arranged on the elastic rubber upper mold core 004, an upper mold 006 fixedly connected with the pressure rod 005 is arranged at the upper end of the upper mold 006, in practice, the upper mold base 007 is connected with a punching machine and can be driven by the punching machine to move, the lower mold base 001 and the lower mold 002 are fixed relative to the punching machine, and the elastic rubber upper mold core 004 is connected with the pressure rod 005, the punching machine drives the pressing rod 005 to vertically move downwards through the upper die base 007 and the upper die 006 to drive the elastic rubber upper die core 004 to vertically move downwards in a matching manner, the bottom of the elastic rubber upper die core 004 firstly contacts and abuts against the lower die 002 and the forming cavity 003, the pressing rod 005 further moves downwards along with the downward movement of the pressing rod, the pressing rod 005 acts on the elastic rubber upper die core 004 to extrude the elastic rubber upper die core 004, the elastic rubber upper die core 004 is compressed and then transversely and uniformly extends outwards and expands in a direction vertical to the axis, when the expansion die is used for machining and forming, a to-be-formed sound box cover 000 (cylindrical sound box cover) is sleeved on the elastic rubber upper die core 004 and is carried by the elastic rubber upper die core 004 to be implanted into the forming cavity 003 from top to bottom, the upper die 006 vertically moves downwards to enable the pressing rod 005 to vertically press the elastic rubber upper die core 004 downwards, the elastic rubber upper die core 004 compresses, the molding cavity 003 of the lower mold 002 is matched (in the molding process, the inner side wall of the molding cavity 003 is molded into a matched shape by blocking the wall of the sound net cover from expanding outwards continuously) to complete the molding of the elliptic sphere hollow reticular metal sound net cover.
Referring to fig. 1 to 4, in the present embodiment, it is preferable that the molding cavity 003 includes a first molding portion 31 and a second molding portion 32, the first molding portion 31 is located at an upper portion of the molding cavity 003, the first molding portion 31 is a circular truncated cone-shaped cavity, the second molding portion 32 is located at a lower portion of the molding cavity 003, the second molding portion 32 is an elliptical truncated cone-shaped cavity, and in the present embodiment, the lower mold 002 and the upper mold 006 are a steel lower mold and a steel upper mold, respectively.
Example 2
Referring to fig. 4, a method for forming an oval-shaped hollow mesh-shaped metal acoustic mesh enclosure, comprising the steps of:
step S21, cutting
Cutting the metal blank into a sheet blank to be formed by using a punch;
step S22, etching
Cleaning, namely cleaning the cut sheet blank to be formed by utilizing an ultrasonic cleaner in combination with a cleaning solution to remove oil stains on the surface of the sheet blank;
ii, pretreatment in etching: sequentially coating photosensitive ink, pre-drying, exposing and developing the sheet blank to be formed;
conveying the sheet blank to be formed after the etching pretreatment to a chemical etching machine, and etching and forming hollow mesh holes with matched shapes and numbers on the sheet blank to be formed by matching chemical etching liquid;
iv, etching post-treatment, namely soaking the sheet blank to be formed, etched with the hollow mesh holes, into a deinking solution to remove ink, and then drying by adopting hot air;
step 23, preliminarily forming a semi-circular truncated cone-shaped sound box mesh enclosure
Stamping and bending the to-be-formed sheet blank etched with the hollow mesh holes into a cylindrical sound net cover by using a stamping machine matched with a stamping die;
carrying out seamless welding on the joint seam of the cylindrical sound net cover placed on the matched fixed jig by using a seamless welding machine, and forming the cylindrical sound net cover formed by stamping and bending into an integral cylindrical sound net cover;
step 24, expansion punch forming
Sleeving the cylindrical sound net cover which is formed into a whole in the beginning on an elastic rubber upper die core of the die for forming the elliptic sphere hollow reticular metal sound net cover in the first aspect;
and ii, starting a punching machine provided with a die for forming the elliptical sphere hollow reticular metal sound net cover, driving the upper die, the pressure rod and the elastic rubber upper die core to vertically move by the punching machine, implanting the cylindrical sound net cover which is formed into a whole body in the forming cavity, driving the pressure rod to extrude the elastic rubber upper die core by the punching machine so as to press and expand the elastic rubber upper die core and extrude the cylindrical sound net cover outwards, and extruding the cylindrical sound net cover outwards and clinging to the forming cavity to complete the expansion punch forming of the elliptical sphere hollow reticular metal sound net cover.
As a further illustration of this embodiment, in step S22, the cleaning solution injected into the ultrasonic cleaning machine is an alkaline cleaning solution including sodium hydroxide, sodium carbonate and sodium dodecylbenzenesulfonate, and the cleaning time is 280S-320S.
As a further explanation of this embodiment, in step S22, the pre-drying is performed by hot air pre-drying or by a vulcanizer, the drying temperature is 30 to 40 ℃, and the drying time is 10 to 15 min.
As a further description of this embodiment, in step S22, in step B, the chemical etching solution is an alkaline copper chloride etching solution or an acidic copper chloride etching solution, and the temperature of the etching bath of the chemical etching machine and the chemical etching solution is set to 30 ℃ to 45 ℃ during etching.
As a further illustration of this embodiment, in step S22, the deinking solution is 20% sodium hydroxide solution, and in the post-etching treatment step, the time for immersing the sheet-like blank to be formed, in which the hollow mesh holes are etched, in the deinking solution is 8min to 10min, and the temperature of the deinking solution is set to 50 ℃ to 60 ℃.
As a further illustration of the embodiment, in step S24, the impact pressure of the press rod pressed into the upper die core of the elastic rubber by the press machine is 60 to 80 tons, the press stroke is 100mm to 120mm, and the impact speed is 3cm/S to 5 cm/S.
As a further illustration of the embodiment, the metal blank is a precision SPCC nickel-plated steel strip, and the thickness of the metal blank is 0.5-0.8 mm.
According to the method in the embodiment, continuous automatic stamping is realized by matching a stamping process with an expansion die, so that the oval hollow meshed metal sound box net cover is formed, the forming efficiency is high, and the oval hollow meshed metal sound box net cover processed by the bulging die is attractive in appearance, uniform in mesh and high in stability.
The technical scope of the present invention is not limited to the above embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.
Claims (5)
1. The utility model provides a method for shaping hollow netted metal sound net cover of ellipsoid, its characterized in that, includes the mould, the mould includes the die holder, a lower mould has set firmly on the die holder, the system has the shaping chamber that matches on the hollow netted metal sound net cover structure of ellipsoid on the lower mould, the lower mould upper end is established and is able to move the implantation mould benevolence on the elasticity rubber in shaping chamber, be equipped with the depression bar that can drive mould benevolence removal on the elasticity rubber and/or the inflation of mould benevolence on the extrusion elasticity rubber on the mould benevolence on the elasticity rubber, the last mould of rigid coupling with it is established to the depression bar upper end, go up the mould upper end and establish the upper die base, still include:
step A. cutting
Cutting the metal blank into a sheet blank to be formed by using a punch;
step B etching
Cleaning, namely cleaning the cut sheet blank to be formed by using an ultrasonic cleaner in combination with a cleaning solution to remove oil stains on the surface of the sheet blank, wherein the cleaning solution is an alkaline cleaning solution comprising sodium hydroxide, sodium carbonate and sodium dodecyl benzene sulfonate, and the cleaning time is 280-320 s;
ii, pretreatment in etching: the sheet blank to be formed is sequentially coated with photosensitive ink, pre-dried, exposed and developed,
the pre-drying is carried out by hot air pre-drying or drying by a vulcanizing machine, the drying temperature is 30-40 ℃, and the drying time is 10-15 min;
and iii, etching the hollow reticular pores, namely conveying the sheet blank to be formed after the etching pretreatment into a chemical etching machine, etching and forming the hollow reticular pores with the matched shape and the matched number on the sheet blank to be formed by matching chemical etching liquid,
the chemical etching solution is alkaline copper chloride etching solution or acidic copper chloride etching solution, and the temperature of an etching groove of a chemical etching machine and the chemical etching solution is set to be 30-45 ℃ during etching;
iv, etching post-treatment, namely immersing the sheet blank to be formed, of which the hollow reticular pores are etched, into deinking solution to remove ink, drying by adopting hot air,
the deinking solution is 20% sodium hydroxide solution, and in the etching post-treatment step, the time for immersing the sheet blank to be formed, in which the hollow reticular pores are etched, into the deinking solution is 8-10 min, and the temperature of the deinking solution is set to be 50-60 ℃;
step C, primary forming semi-circular truncated cone-shaped sound box mesh enclosure
Stamping and bending the to-be-formed sheet blank etched with the hollow mesh holes into a cylindrical sound net cover by using a stamping machine matched with a stamping die;
carrying out seamless welding on the joint seam of the cylindrical sound net cover placed on the matched fixed jig by using a seamless welding machine, and forming the cylindrical sound net cover formed by stamping and bending into an integral cylindrical sound net cover;
step D, expansion punch forming
Sleeving a cylindrical sound box mesh enclosure which is formed into a whole body in advance on an elastic rubber upper die core of the die;
and ii, starting a punching machine provided with a die for forming the elliptical sphere hollow reticular metal sound net cover, driving the upper die, the pressure rod and the elastic rubber upper die core to vertically move by the punching machine, implanting the cylindrical sound net cover which is formed into a whole body in the forming cavity, driving the pressure rod to extrude the elastic rubber upper die core by the punching machine so as to press and expand the elastic rubber upper die core and extrude the cylindrical sound net cover outwards, and extruding the cylindrical sound net cover outwards and clinging to the forming cavity to complete the expansion punch forming of the elliptical sphere hollow reticular metal sound net cover.
2. The method for forming an ellipsoidal hollow mesh metal acoustic screen according to claim 1, wherein the forming cavity comprises a first forming portion and a second forming portion, the first forming portion is located at an upper portion of the forming cavity, and the first forming portion is a truncated cone-shaped cavity; the second forming part is positioned at the lower part of the forming cavity and is an elliptic platform-shaped cavity.
3. The method as claimed in claim 1, wherein the lower mold and the upper mold are a steel lower mold and a steel upper mold, respectively.
4. The method as claimed in claim 1, wherein in the step D, the impact pressure of the punch pressing the pressing rod into the upper mold core of the elastic rubber is 60 to 80 tons, the punching stroke is 100 to 120mm, and the impact speed is 3 to 5 cm/s.
5. The method of claim 1, wherein the metal blank is a precision SPCC nickel plated steel strip with a thickness of 0.5-0.8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810315929.1A CN108620485B (en) | 2018-04-10 | 2018-04-10 | Mold and method for forming elliptical-sphere hollow-mesh metal sound box net cover |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810315929.1A CN108620485B (en) | 2018-04-10 | 2018-04-10 | Mold and method for forming elliptical-sphere hollow-mesh metal sound box net cover |
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| CN108620485A CN108620485A (en) | 2018-10-09 |
| CN108620485B true CN108620485B (en) | 2020-01-07 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1264326A (en) * | 1997-07-18 | 2000-08-23 | 科西马国际公司 | Hydroforming of tubular blank having oval cross section and hydroforming apparatus |
| CN101069610A (en) * | 2007-05-24 | 2007-11-14 | 林其添 | Technology for producing stainless-steel plane-bit |
| CN101722408A (en) * | 2008-10-17 | 2010-06-09 | 日立电线株式会社 | Radiator plate, perforated plate and methods of making the same |
| CN203649090U (en) * | 2013-12-05 | 2014-06-18 | 奇瑞重工股份有限公司 | Engine air inlet pipe compression tool |
| CN105127285A (en) * | 2015-07-02 | 2015-12-09 | 北京灵隆科技有限公司 | Speaker mesh processing device and processing method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170043515A1 (en) * | 2015-08-13 | 2017-02-16 | Chih-Chia WEI | Thermoplastic Shell Assembly Formed Integrally by Embedding and Injection and Method for Manufacturing the Shell Assembly |
-
2018
- 2018-04-10 CN CN201810315929.1A patent/CN108620485B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1264326A (en) * | 1997-07-18 | 2000-08-23 | 科西马国际公司 | Hydroforming of tubular blank having oval cross section and hydroforming apparatus |
| CN101069610A (en) * | 2007-05-24 | 2007-11-14 | 林其添 | Technology for producing stainless-steel plane-bit |
| CN101722408A (en) * | 2008-10-17 | 2010-06-09 | 日立电线株式会社 | Radiator plate, perforated plate and methods of making the same |
| CN203649090U (en) * | 2013-12-05 | 2014-06-18 | 奇瑞重工股份有限公司 | Engine air inlet pipe compression tool |
| CN105127285A (en) * | 2015-07-02 | 2015-12-09 | 北京灵隆科技有限公司 | Speaker mesh processing device and processing method |
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|---|---|
| CN108620485A (en) | 2018-10-09 |
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