CN117261104A - Nano injection molding manufacturing process for composite deep frame shell and composite deep frame shell - Google Patents
Nano injection molding manufacturing process for composite deep frame shell and composite deep frame shell Download PDFInfo
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- CN117261104A CN117261104A CN202311229609.1A CN202311229609A CN117261104A CN 117261104 A CN117261104 A CN 117261104A CN 202311229609 A CN202311229609 A CN 202311229609A CN 117261104 A CN117261104 A CN 117261104A
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- deep frame
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 80
- 239000002131 composite material Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 23
- 238000005498 polishing Methods 0.000 claims abstract description 19
- 238000004506 ultrasonic cleaning Methods 0.000 claims abstract description 18
- 238000005491 wire drawing Methods 0.000 claims abstract description 17
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 6
- 239000003814 drug Substances 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 32
- 239000003292 glue Substances 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 22
- 238000007493 shaping process Methods 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 230000001965 increasing effect Effects 0.000 claims description 7
- 238000003754 machining Methods 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 20
- 229920003023 plastic Polymers 0.000 description 36
- 239000004033 plastic Substances 0.000 description 36
- 238000007731 hot pressing Methods 0.000 description 21
- 238000007789 sealing Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 229920001887 crystalline plastic Polymers 0.000 description 6
- 238000005065 mining Methods 0.000 description 5
- 239000000084 colloidal system Substances 0.000 description 4
- 230000008602 contraction Effects 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000007517 polishing process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002991 molded plastic Substances 0.000 description 2
- 239000001632 sodium acetate Substances 0.000 description 2
- 235000017281 sodium acetate Nutrition 0.000 description 2
- 239000001488 sodium phosphate Substances 0.000 description 2
- 229910000162 sodium phosphate Inorganic materials 0.000 description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- FRTNIYVUDIHXPG-UHFFFAOYSA-N acetic acid;ethane-1,2-diamine Chemical compound CC(O)=O.CC(O)=O.CC(O)=O.CC(O)=O.NCCN FRTNIYVUDIHXPG-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- XZUAPPXGIFNDRA-UHFFFAOYSA-N ethane-1,2-diamine;hydrate Chemical compound O.NCCN XZUAPPXGIFNDRA-UHFFFAOYSA-N 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
-
- 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
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/03—Covers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/069—Other details of the casing, e.g. wall structure, passage for a connector, a cable, a shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C2045/1486—Details, accessories and auxiliary operations
- B29C2045/14868—Pretreatment of the insert, e.g. etching, cleaning
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of injection molding, in particular to a composite deep frame shell nano injection molding manufacturing process and a composite deep frame shell, wherein the composite deep frame shell nano injection molding manufacturing process comprises the following steps: s1, stamping, namely stamping a metal plate to obtain an outer shell; s2, chemical treatment, namely treating the inner surface of the outer shell through treatment liquid medicine to form nanoscale holes; s3, preheating, namely placing the outer shell into a die, and preheating through the die; s4, injection molding is carried out on the inner surface of the outer shell to obtain an inner shell; s5, demolding, and taking the outer shell out of the mold; s6, polishing, namely polishing and wiredrawing the outer shell; s7, cleaning, namely performing ultrasonic cleaning on the outer shell. The outer shell is obtained through stamping, and the obtained outer shell is high in strength. The surface polishing wire drawing and ultrasonic cleaning post-treatment procedures are utilized, so that the appearance of the outer shell can be ensured, the long-time high-temperature baking procedure in the traditional nano injection molding process can be omitted, and the production efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of mining shells, in particular to a nano injection molding manufacturing process of a composite deep frame shell and the composite deep frame shell.
Background
The use environment of the mine electronic equipment is bad, and the complex underground coal mine environment provides challenges for the performances of IP protection, strength, electromagnetic shielding and the like of the electronic equipment shell. In addition, GB/T3836-2021 also puts stringent test requirements on equipment housings in explosive environments, including impact resistance, drop, flame retardance, heat resistance, cold resistance, high and low temperature impact and the like.
The mining metal shell generally adopts stainless steel welding or stretching technology, the internal waterproof sealing structure is poor in technological consistency with the installation stud, the protection performance is difficult to guarantee, and the metal shell is required to guarantee a certain wall thickness to meet the strength requirement, so that the weight is heavier. The mining plastic shell has the defects of low structural strength, poor electromagnetic shielding performance, flame retardant modification and the like. Along with the increasing requirement of coal mine safety production on the stability of mining equipment, a composite waterproof housing suitable for mining electronic equipment is urgently needed, and the advantages of strength, protection, light weight, good consistency, stability, reliability, strong environmental adaptability and the like are taken into consideration.
The nanometer injection molding process is a new technology for realizing the strong combination of plastic and metal, the injection molding needs to form nanometer holes on the surface of the metal by using a T treatment process, then the plastic is injected into the nanometer holes, and the plastic-metal combination is realized by using an anchor bolt effect.
The nano injection molding process requires that the nano plastic has high fluidity and low shrinkage, injection molding conditions adopt high mold temperature and high pressure, and the metal part needs to be preheated before injection molding so as to ensure that the injection molding colloid can be rapidly filled into the nano cavity before injection cooling. In addition, a glue pulling structure is needed to be reserved on the metal piece so as to strengthen the combination of plastic and metal. After injection molding, the product needs to be annealed and baked for a long time to eliminate the internal stress of metal and plastic. In summary, the nano injection molding process has complex process, multiple working procedures and higher cost, and affects the wide popularization of the process.
At present, the nano injection molding process is mainly applied to planar thin-wall structures such as lithium battery cover plates, mobile phone shells and the like. The product has small injection glue amount, injection shrinkage is limited in two-dimensional directions, metal and plastic combination is enhanced through a glue pulling structure, and combination molding is simpler. The large deep frame waterproof shell is complex in structure, and besides the simple installation studs are formed, the complex sealing protection structure is required to be formed, so that the whole process is complex, and the efficiency is low.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a nano injection molding manufacturing process of a composite deep frame shell and the composite deep frame shell.
The technical scheme adopted for solving the technical problems is as follows: the composite deep frame shell nano injection molding manufacturing process comprises the following steps of:
s1, stamping, namely stamping a metal plate to obtain an outer shell;
s2, chemical treatment, namely treating the inner surface of the outer shell through treatment liquid medicine to form nanoscale holes;
s3, preheating, namely placing the outer shell into a die, and preheating through the die;
s4, injection molding is carried out on the inner surface of the outer shell to obtain an inner shell;
s5, demolding, and taking the outer shell out of the mold;
s6, polishing, namely polishing and wiredrawing the outer shell;
s7, cleaning, namely performing ultrasonic cleaning on the outer shell.
Through above-mentioned technical scheme, directly obtain the shell body through the punching press, production efficiency is higher, and the shell body intensity of obtaining is higher. The nanoscale holes are formed on the inner surface of the outer shell by chemical treatment, so that plastic can be better combined with the outer shell during injection molding. And after the inner shell is molded and cooled, carrying out surface wire drawing and polishing, and then carrying out ultrasonic cleaning in warm water. In the surface wire drawing polishing process, local instantaneous high temperature on the outer surface of the outer shell can be conducted into the nanometer holes on the inner wall from the outside, but the plastic main body of the inner shell is not affected. The local instantaneous high temperature can help to eliminate the surface stress of the metal substrate and the plastic. After wire drawing and polishing, ultrasonic cleaning was performed in warm water. The crystallinity of the nano-scale crystalline plastic (PBT or PPS) can be increased by ultrasonic vibration in the ultrasonic cleaning process, and the dimensional stability of the nano-scale crystalline plastic is improved. The surface polishing wire drawing and ultrasonic cleaning post-treatment procedures are utilized, so that the appearance of the outer shell can be ensured, the long-time high-temperature baking procedure in the traditional nano injection molding process can be omitted, and the production efficiency is greatly improved.
Further, the inner shell is provided with round corner parts, when in injection molding, the glue inlet is formed in the round corner parts, each round corner part is correspondingly provided with a glue inlet, and after the inner shell is molded, the glue inlet is cut off.
Through the technical scheme, the glue inlet is arranged near the round corner parts around, so that the binding force between the round corner parts and the outer shell is enhanced, and the glue inlet is helpful to resist the shrinkage stress conducted by the side wall of the inner shell. The mobility requirement of nano injection molding on plastic is very high, so as to ensure that the injection molding colloid fills nano cavities rapidly before injection cooling. The plastic at the glue inlet is not cooled by the mold temperature as the plastic just enters the outer shell, and the fluidity is stronger, so that the bonding strength at the pouring gate is better. Meanwhile, the round corner parts are provided with a plurality of glue inlets, and the design of the plurality of glue inlets can reduce the filling and plastic cooling time and improve the plastic fluidity and the bonding strength.
Further, during injection molding, the die is provided with a limiting rod, the limiting rod is arranged on the end face of the outer shell along the circumferential direction of the outer shell, and the limiting rod is suitable for limiting the outer shell.
Through the technical scheme, when nanometer is moulded plastics, the shell body needs to be put into the mould and then is moulded plastics, and the position deviation can lead to the separation problem of moulding plastics. And the limiting rod is arranged on the end face of the outer shell along the circumferential direction of the outer shell, so that the positioning precision between the outer shell and the inner shell can be ensured as much as possible. The limit rod can also help exhaust, so that trapped air in the nano holes is avoided, and the bonding strength is enhanced.
Further, during injection molding, the mold is provided with an ejector rod, the ejector rod is arranged on the end face of the outer shell along the circumferential direction of the outer shell, and the ejector rod is suitable for ejecting the outer shell from the mold.
Through above-mentioned technical scheme, the ejector rod can assist and support the shell body, further promotes the positioning accuracy between shell body and the interior casing, is convenient for simultaneously with the shell body that the completion of moulding plastics ejecting in the mould, the setting of ejector rod can also help the exhaust simultaneously, avoids appearing stranded gas in the nanometer hole, reinforcing joint strength.
Further, after the outer shell is taken out of the die, the outer shell and the inner shell are subjected to uniform temperature shaping.
Further, after the outer shell body is taken out of the die, the outer shell body is subjected to uniform temperature shaping through a uniform temperature cooling shaping tool, the uniform temperature cooling shaping tool comprises a uniform temperature inner core and a uniform temperature cover, the uniform temperature inner core and the uniform temperature cover are inserted into the inner shell body and are in fit with the inner shell body, the uniform temperature cover is in hard contact with the bottom surface of the main shell body, and the uniform temperature cover is connected with the uniform temperature inner core through bolts.
Through above-mentioned technical scheme, after shell body and the demolding of inner shell body, holistic temperature is higher, and in the cooling process, the shell body is metal, and the heat conductivity is good, and big with air contact area, so the cooling is fast, and the inner shell body is the plastic, and the heat conductivity is poor, and small with air contact area, so the cooling is slow. Meanwhile, the side wall of the inner shell with small glue amount is cooled fast, and the round corner part with large glue amount is cooled slowly. The difference of cooling speed can lead to the difference of shrinkage, and then causes the holistic indent deformation of casing, has aggravated the shrinkage force that the fillet department bore. Therefore, after the inner shell is sleeved into the uniform Wen Naxin, the uniform-temperature inner core, the outer shell and the uniform-temperature cover are fixedly connected by bolts, and the cooling of the inner shell is accelerated by the uniform-temperature inner core, so that the cooling speed of the outer shell and the cooling speed of the inner shell are ensured to be consistent, and the shrinkage stress is reduced. In addition, the uniform temperature plastic frock can also guarantee the holistic stable in size of shell body and interior casing, provides the holding power.
In a second aspect, the present invention discloses a composite deep frame housing.
A composite deep frame shell, comprising an outer shell; the inner shell is injection molded in the outer shell, and a round corner part is arranged on the inner shell; the arc supporting part is concavely arranged and corresponds to the round corner part of the inner shell; the reinforcing bottom plate is connected with the arc supporting part and the bottom surface of the outer shell at the same time, and is not connected with the inner shell; the inner support piece is arranged between the arc supporting part and the inner shell and is positioned at the bottom of the arc supporting part, and the inner support piece is connected with the inner shell, the arc supporting part and the outer shell at the same time; the inner support sheet is connected with a cover closing stud, a first embedded nut is arranged in the cover closing stud, and the first embedded nut is suitable for being connected with the cover plate; the closing cap stud is connected with the arc supporting part through a reinforcing rib; the reinforcing ribs are arranged in pairs; an ejection part is arranged on the side surface of the reinforced bottom sheet and is connected with the bottom surface of the outer shell; the waterproof ribs are arranged on the end face of the inner shell, are circumferentially arranged along the inner shell and are in a closed state, and are suitable for being matched with the cover plate; the reinforcing bottom plate is provided with an injection molding nut part, a second embedded nut is arranged in the injection molding nut part and is in hard contact with the inner bottom surface of the outer shell, and the second embedded nut is suitable for being connected with a circuit board.
Through above-mentioned technical scheme, circular arc supporting part can support the inner shell, helps the fillet portion to resist the contractile force that inner shell lateral wall conducted. The binding force between the reinforcing bottom plate and the bottom surface of the outer shell can be matched with the arc supporting part and is dispersed on the round corner part along the height direction, so that the shrinkage force conducted by the side wall of the inner shell is further resisted. Meanwhile, the reinforcing bottom plate is not connected with the inner shell, so that the possibility that the self shrinkage stress on the reinforcing bottom plate is transmitted to the inner shell can be avoided, and the shrinkage force of the arc supporting part is aggravated. The circular arc supporting part can resist the shrinkage force born by the circular arc supporting part by utilizing the whole binding force of the reinforced bottom plate plastic. In addition, the inner supporting piece can strengthen the arc supporting part on one hand, increase the cohesion of arc supporting part and shell body, on the other hand can support arc supporting part and fillet portion, help fillet portion to resist the shrinkage force of inner shell body lateral wall, reduce the fillet portion and appear cracking or with the possibility of shell body separation.
The strengthening rib can support circular arc supporting part, strengthens the structural strength who closes the lid double-screw bolt simultaneously, and because the strengthening rib is not connected with fillet portion, so can not aggravate the contractile force that the fillet portion born.
The ejector part can increase the binding force of strengthening the film and the inner bottom surface of the outer shell on one hand, is convenient for the ejector pin to push against on the other hand, compared with the ejector pin which directly pushes against on the inner bottom surface of the outer shell, the bearing capacity of the ejector part and the inner bottom surface of the outer shell after being combined is stronger, and the outer shell is not easy to deform.
The waterproof rib is convenient for cooperate with the apron, promotes stability and the leakproofness that the shell body is connected with the apron.
The injection molding nut portion is convenient for fix the second mosaic nut and the shell body relatively through injection molding, the second mosaic nut is in hard contact with the inner bottom surface of the shell body, so that the conduction between the shell body and the second mosaic nut is convenient to realize, and the second mosaic nut is used for installing a circuit board in the later period, so that the conduction between the shell body and the circuit board is convenient to realize, the circuit board is convenient to realize grounding through the metal shell body, and the electromagnetic compatibility of an internal electronic device can be improved.
The invention has the advantages that,
1. the shell body is directly obtained through stamping, the production efficiency is higher, and the strength of the obtained shell body is higher. The nanoscale holes are formed on the inner surface of the outer shell by chemical treatment, so that plastic can be better combined with the outer shell during injection molding. And after the inner shell is molded and cooled, carrying out surface wire drawing and polishing, and then carrying out ultrasonic cleaning in warm water. In the surface wire drawing polishing process, local instantaneous high temperature on the outer surface of the outer shell can be conducted into the nanometer holes on the inner wall from the outside, but the plastic main body of the inner shell is not affected. The local instantaneous high temperature can help to eliminate the surface stress of the metal substrate and the plastic. After wire drawing and polishing, ultrasonic cleaning was performed in warm water. The crystallinity of the nano-scale crystalline plastic (PBT or PPS) can be increased by ultrasonic vibration in the ultrasonic cleaning process, and the dimensional stability of the nano-scale crystalline plastic is improved. The surface polishing wire drawing and ultrasonic cleaning post-treatment procedures are utilized, so that the appearance of the outer shell can be ensured, the long-time high-temperature baking procedure in the traditional nano injection molding process can be omitted, and the production efficiency is greatly improved. The method comprises the steps of carrying out a first treatment on the surface of the
2. The composite double-layer shell based on nano injection molding has the advantages of high strength, light weight, good protective performance, good production consistency, excellent electromagnetic shielding performance, simple production process and the like, and is very suitable for underground coal mine electronic equipment;
3. the combination of preheating in a die, cooling and shaping at uniform temperature, wiredrawing and polishing and ultrasonic cleaning is utilized, so that the bonding strength is ensured, the flow of the nano injection molding process is simplified, the working procedures of preheating an external metal part, baking at high temperature and the like are included, and the processing period and the processing difficulty are shortened.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of an overall composite deep frame housing embodying the present invention.
Fig. 2 is a schematic diagram of an exploded structure of a see-through viewing window embodying the present invention.
Fig. 3 is a schematic view showing a structure of a hot press cylinder according to the present invention after being hot pressed.
Fig. 4 is a schematic cross-sectional view of a first wrapper embodying the present invention.
FIG. 5 is a flow chart of the nano injection molding manufacturing process of the composite deep frame shell.
FIG. 6 is a schematic view of a structure embodying a barrel and a thimble in the present invention.
Fig. 7 is a schematic view of a structure of a stopper rod embodied in the present invention.
Fig. 8 is a schematic view of a structure of an ejector rod embodying the present invention.
Fig. 9 is a schematic view of a structure embodying a first parting line in the present invention.
Fig. 10 is a schematic structural view of a cartridge embodying the present invention.
Fig. 11 is a schematic structural diagram of a uniform temperature cooling shaping tool according to the present invention.
In the figure, 1, an outer shell; 11. a perspective window; 12. hot pressing the hole site; 13. a perspective observation window; 131. sealing the groove; 132. an observation window sealing ring; 133. hot pressing the cylinder; 2. an inner housing; 31. a rounded corner portion; 311. a reduction groove; 32. a circular arc support part; 33. reinforcing the bottom sheet; 331. an ejection part; 332. injection molding the nut part; 333. a second insert nut; 34. an inner support sheet; 341. closing the stud; 342. a first insert nut; 343. reinforcing ribs; 35. a first wrapping layer; 36. waterproof ribs; 37. a window-penetrating support sheet; 38. a window-penetrating attaching ring; 4. a cover plate body; 41. a side edge; 411. screw holes; 42. a plastic skeleton; 421. a second wrapping layer; 422. a screw connection portion; 4221. a connection hole; 4222. countersink; 423. a reinforcing block; 424. sealing grooves; 425. a seal ring; 4251. avoidance holes; 5. a limit rod; 51. a first step; 52. a second step; 53. a third step; 6. an ejector rod; 61. a fourth step; 62. a fifth step; 63. a sixth step; 7. a thimble; 71. a barrel; 72. a first parting line; 73. wen Naxin all; 74. a temperature equalizing cover; 75. a second parting line; 761. a push plate; 762. a top block; 763. pushing needles; 771. a first ejection rod; 772. a second ejection rod; 78. and (5) pouring gate.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
In a first aspect, the present invention discloses a composite deep frame housing.
Referring to fig. 1 to 4, a composite deep frame casing includes an outer casing 1 and an inner casing 2, the inner casing 2 is injection molded in the outer casing 1, a rounded corner portion 31 and a circular arc supporting portion 32 are disposed on the inner casing 2, and the circular arc supporting portion 32 is concavely disposed and is disposed opposite to the rounded corner portion 31. The rounded corner portion 31 and the circular arc supporting portion 32 are provided with four groups. The bottom of the arc support portion 32 is integrally formed with a reinforcing bottom piece 33, and the inner bottom surface of the outer case 1 of the reinforcing bottom piece 33 is bonded by injection molding, but is not connected with the side wall of the inner case 2. An inner supporting piece 34 is integrally formed between the arc supporting part 32 and the inner shell 2, the inner supporting piece 34 is positioned at the bottom of the arc supporting part 32, and the inner supporting piece 34 is combined with the inner bottom surface of the outer shell 1 through injection molding. The material of the outer shell 1 may be 304 with a wall thickness of 1-1.5mm.
The circular arc support portion 32 can support the inner housing 2, and helps the rounded portion 31 resist the contraction force conducted from the side wall of the inner housing 2. The bonding force between the reinforcing bottom piece 33 and the bottom surface of the outer shell 1 can be matched with the circular arc supporting portion 32, and the bonding force is dispersed on the round corner portion 31 along the height direction, so that the shrinkage force conducted by the side wall of the inner shell 2 is further resisted. Meanwhile, the reinforcing bottom plate 33 is not connected with the inner shell 2, so that the possibility that the own shrinkage stress on the reinforcing bottom plate 33 is transmitted to the inner shell 2 can be avoided, and further the shrinkage force suffered by the arc supporting part 32 is avoided being increased. The circular arc supporting portion 32 can resist the shrinkage force born by itself by utilizing the whole binding force of the reinforcing bottom piece 33 and the outer shell 1. In addition, the inner support piece 34 can strengthen the arc supporting portion 32 on one hand, increase the binding force between the arc supporting portion 32 and the outer shell 1, and can support the arc supporting portion 32 and the round corner portion 31 on the other hand, help the round corner portion 31 resist the contraction force of the side wall of the inner shell 2, and reduce the possibility that the round corner portion 31 is cracked or separated from the outer shell 1.
The inner supporting piece 34 is integrally formed with a cap closing stud 341, and a first inlay nut 342 is arranged in the cap closing stud 341, and the first inlay nut 342 is suitable for being connected with a cover plate. During injection molding, the positions of the outer shell 1 and the first inlay nut 342 are determined through a mold, and then the cap closing stud 341 is molded through injection molding, and at the moment, the first inlay nut 342 is also covered and fixed by the cap closing stud 341. The cap closing stud 341 and the arc supporting portion 32 are connected by a reinforcing rib 343, and the reinforcing ribs 343 are provided in pairs. The reinforcing rib 343 can support the arc support portion 32 while enhancing the structural strength of the cap closing stud 341, and since the reinforcing rib 343 is not connected to the rounded portion 31, the contraction force received by the rounded portion 31 is not emphasized. In this embodiment, four sets of cap studs 341 and first insert nuts 342 are provided and located at four corner points of the inner housing 2.
The integrated into one piece has first parcel layer 35 on the inner housing 2, first parcel layer 35 combines with the terminal surface of shell body 1 moulding plastics, utilize first parcel layer 35 to increase the bonding area of metal and plastic, provide the tensile stress who resists shrinkage force for fillet portion 31 all around, in addition, first parcel layer 35 can be as the installation fixed surface with the apron connection, plastic fashioned first parcel layer 35 is compared in the planarization of shell body 1 terminal surface as the plane degree of fixed surface high, can reduce the requirement to shell body 1 terminal surface plane degree of flatness, reduce the processing degree of difficulty of shell body 1.
The tapered groove 311 is formed in the inner side of the rounded portion 31, and the tapered groove 311 is provided in the height direction. The partial reduction of the wall thickness of the rounded portion 31 by the reduction groove 311 does not affect the bonding force at the bonding surface of the outer case 1 and the inner case 2, but can reduce the inherent shrinkage force generated by injection molding at this point, because the bonding force is only effective at the bonding surface of the outer case 1 and the inner case 2.
The reinforcing bottom sheet 33 has an ejector 331 integrally formed on a side surface thereof, and the ejector 331 is connected to the bottom surface of the outer case 1. The ejector 331 can increase the binding force between the reinforcing bottom plate 33 and the inner bottom surface of the outer casing 1, and is convenient for the ejector pin 7 to push against, compared with the ejector pin 7 which directly pushes against the inner bottom surface of the outer casing 1, the ejector 331 has stronger bearing capacity after being combined with the inner bottom surface of the outer casing 1, and the outer casing 1 is not easy to deform. The ejector 331 is provided with a plurality of ejector pins 7 to synchronize the tops, and to improve the stability of movement when the outer casing 1 and the inner casing 2 are ejected.
The waterproof rib 36 is integrally formed on the end face of the inner shell 2, the waterproof rib 36 is circumferentially arranged along the inner shell 2 and is in a closed state, the waterproof rib 36 is suitable for being matched with a cover plate, and therefore stability and tightness of connection between the outer shell 1 and the cover plate are improved.
The reinforcing base plate 33 is integrally formed with an injection-molded nut portion 332, and a second insert nut 333 is provided in the injection-molded nut portion 332, and the second insert nut 333 is in hard contact with the bottom surface of the outer case 1. The injection molding nut portion 332 is convenient for relatively fix the second embedded nut 333 and the outer shell 1 through injection molding, and the second embedded nut 333 is in hard contact with the inner bottom surface of the outer shell 1, so that the conduction between the outer shell 1 and the second embedded nut 333 is facilitated, and the second embedded nut 333 is used for installing a circuit board in the later stage, so that the conduction between the outer shell 1 and the circuit board is facilitated, the circuit board is facilitated to be grounded through the metal outer shell 1, and the electromagnetic compatibility of an internal electronic device can be improved. In this embodiment, four reinforcing bottom plates 33, injection molding nut portions 332 and second insert nuts 333 are provided, and a set of injection molding nut portions 332 and second insert nuts 333 are provided on each reinforcing bottom plate 33.
Referring to fig. 1 to 3, a perspective window 11 is formed in the outer casing 1, a perspective observation window 13 is attached to the outer bottom surface of the outer casing 1, the perspective observation window 13 covers the perspective window 11, a sealing groove 131 is formed in the perspective observation window 13, and an observation window sealing ring 132 is arranged in the sealing groove 131. The perspective observation window 13 is integrally provided with a hot pressing cylinder 133, and the hot pressing cylinder 133 is provided with a plurality of hot pressing cylinders along the circumferential array of the perspective window 11. The bottom surface of the outer shell 1 is provided with hot pressing hole sites 12 for the hot pressing cylinders 133 to pass through, and the hot pressing hole sites 12 are arranged in a plurality of arrays along the circumferential direction of the perspective window 11 and are in one-to-one correspondence with the hot pressing cylinders 133. When the device is installed, the perspective observation window 13 is attached to the outer bottom surface of the outer shell 1, at this time, the front end of the hot pressing cylinder 133 passes through the hot pressing hole site 12, then the part of the hot pressing cylinder 133 passing through the hot pressing hole site 12 is anchored on the inner surface of the outer shell 1 by being deformed by hot pressing, and the perspective observation window 13 is fixed with the outer shell 1.
In another embodiment, the first inlay nut 342 may be welded to the inner bottom surface of the outer case 1. The first insert nut 342 is welded to the inner surface of the outer case 1, and the cap stud 341 is supported by the first insert nut 342, so that the arc support portion 32 and the rounded portion 31 are supported, the shrinkage force received by the rounded portion 31 is assisted, and the shrinkage force received by the rounded portion 31 is not greater than the bonding force between the rounded portion 31 and the outer case 1.
In a second aspect, the invention discloses a nano injection molding manufacturing process of a composite deep frame shell.
The nano injection molding manufacturing process of the composite deep frame shell is based on the composite deep frame shell, and referring to fig. 5, the nano injection molding manufacturing process comprises the following steps:
s1, stamping, namely stamping the metal plate to obtain the outer shell 1.
S2, performing chemical treatment, namely performing alkali washing and acid washing on the outer shell 1, and then performing treatment on the inner surface of the outer shell 1 through treatment liquid medicine to form nanoscale holes. The treatment liquid medicine comprises sodium acetate, sodium phosphate, disodium hydrogen phosphate, ethylenediamine tetraacetic acid and water, wherein the content of the sodium acetate is 20-40 g/L, the content of the sodium phosphate is 5-30 g/L, the content of the disodium hydrogen phosphate is 10-30 g/L, the content of the ethylenediamine tetraacetic acid is 1-20 g/L, and the rest is water.
S3, preheating, namely placing the outer shell 1 into a die, and preheating through the die.
Referring to fig. 6, the glue inlets are formed at the round corner portions 31 during injection molding, and four glue inlets are formed at the round corner portions 31. The glue inlet is arranged near the round corner part 31 around, so that the binding force between the round corner part 31 and the outer shell 1 is enhanced, and the glue inlet is helpful to resist the contraction stress conducted by the side wall of the inner shell 2. The mobility requirement of nano injection molding on plastic is very high, so as to ensure that the injection molding colloid fills nano cavities rapidly before injection cooling. The plastic at the glue inlet is not cooled by the mold temperature as the plastic just enters the outer shell 1, and the fluidity is stronger, so the bonding strength at the pouring gate is better. Meanwhile, due to the design of multiple glue inlets, the time for filling and cooling plastic can be reduced, and the fluidity and the bonding strength of the plastic can be improved. After the inner housing 2 is injection molded, the gate 78 formed by the glue inlet can be cut off by CNC.
Specifically, referring to fig. 1, 6 to 8, a limit rod 5 is provided on the mold, and the limit rod 5 is arranged on the end surface of the outer casing 1 along the circumferential direction of the outer casing 1; the limiting rod 5 is provided with a first step 51, a second step 52 and a third step 53, the first step 51 is abutted against the end face of the outer shell 1, the second step 52 is suitable for being inserted into the inner shell 2, the third step 53 is suitable for being abutted against the end face of the waterproof rib 36, and after the inner shell 2 is molded, when the second step 52 is pulled out from the inner shell 2, an empty groove 79 is formed in the inner shell 2. The mold is provided with an ejector rod 6, and the ejector rod 6 is arranged on the end surface of the outer shell 1 along the circumferential direction of the outer shell 1; the ejector rod 6 is provided with a fourth step 61, a fifth step 62 and a sixth step 63, the fourth step 61 is abutted against the end face of the outer shell 1, the fifth step 62 is suitable for being abutted against the first wrapping layer 35, and the sixth step 63 is suitable for being abutted against the end face of the waterproof rib 36. When nano injection molding is performed, the outer shell 1 needs to be put into a mold for injection molding, and the problem of injection molding separation can be caused by position deviation. The limit rod 5 is arranged on the end face of the outer shell 1 along the circumferential direction of the outer shell 1, so that the positioning precision between the outer shell 1 and the inner shell 2 can be ensured as much as possible. The ejector rod 6 can assist in supporting the outer shell 1, and further improves positioning accuracy between the outer shell 1 and the inner shell 2.
The ejector pin 7 is also arranged in the die, and the ejector pin 7 is suitable for being abutted against the ejection part 331, so that the outer shell 1 and the inner shell 2 can be ejected out of the die together during die stripping.
Referring to fig. 9, the first parting line 72 of the mold is disposed along the sidewall of the inner housing 2, the rounded corner portion 31 and the arc supporting portion 32, so as to provide more exhaust area for residual gas in the cavity of the outer housing 1 as much as possible, and the residual gas in the cavity of the outer housing 1 can be smoothly exhausted along the flowing direction of plastic injection molding, thereby avoiding the occurrence of air trapping problem, ensuring the tight combination of injection molding colloid and nano holes and enhancing the bonding strength.
Referring to fig. 6 and 10, a driver 71 matched with a second embedded nut 333 is arranged on the mold, when the mold is closed, the driver 71 abuts against the second embedded nut 333, so that the second embedded nut 333 abuts against the outer shell 1, and then the outer shell 1 abuts against the mold core in the mold, so that the mold core with higher heat is used for rapidly heating the outer shell 1, preheating of the outer shell 1 through the mold is realized, a process that a metal piece needs to be independently preheated outside the mold in the traditional nano injection molding process can be omitted, and the production efficiency is greatly improved.
During injection molding, the outer shell 1 is positioned and limited by the mold through the limiting rod 5 and the ejection rod 6, and then the limit of the first embedded nut 342 and the second embedded nut 333 is realized through the barrel 71, each first embedded nut 342 and each second embedded nut 333 corresponds to one barrel 71, and the barrel 71 can adopt a stepped barrel 71. Then, the mold is closed, and when the mold is closed, the driver 71 abuts against the second embedded nut 333, so that the second embedded nut 333 abuts against the outer shell 1, and further the outer shell 1 abuts against the mold core in the mold, so that the mold core with higher heat is used for rapidly heating the outer shell 1, and preheating of the outer shell 1 through the mold is realized.
S4, injection molding is carried out through a glue inlet after preheating is finished, injection molding is stopped after the mold cavity between the outer shell 1 and the mold core is filled, and the inner shell 2 is waited to solidify.
The nano injection molding material adopted in injection molding can be modified nanoscale PBT or PPS.
S5, demolding, namely separating the mold after the inner shell 2 is solidified and molded, ejecting the outer shell 1 from the mold core through the ejector pins 7, and then taking away the outer shell 1 and the inner shell 2 which are integrated into a whole.
S6, machining, namely removing a gate left by the glue inlet on the inner shell 2 through machining;
s7, performing uniform temperature cooling shaping, namely performing uniform temperature shaping on the outer shell 1 through a uniform temperature cooling shaping tool after the outer shell 1 is taken out of the die.
Specifically, referring to fig. 11, the temperature equalizing cooling shaping tool includes a temperature equalizing cover 74 and a temperature equalizing cover Wen Naxin, wherein the temperature equalizing cover Wen Naxin is inserted in the inner housing 2 and is attached to the inner housing 2, the temperature equalizing cover 74 is in hard contact with the bottom surface of the main housing, passes through the perspective window 11 through bolts and is connected with the temperature equalizing cover Wen Naxin, and the temperature equalizing cover Wen Naxin is attached to the inner housing 2 reliably. In order to ensure that each part of the inner shell 2 can be uniformly cooled, the side wall of the uniform temperature heat core is matched with the inner shell 2, so that the round corner part 31, the injection molding nut part 332 and the like on the inner shell 2 can be bonded with the uniform temperature heat core, the uniformity of cooling is ensured, and the generation of stress is reduced. In addition, the uniform temperature plastic frock can also provide holding power, guarantees outer casing 1 and the holistic stable in size of interior casing 2.
S8, polishing, namely polishing and wiredrawing the outer shell 1. In the surface wire drawing polishing process, local instantaneous high temperature on the outer surface of the outer shell 1 can be conducted into the nano holes on the inner wall from the outside, but the plastic main body of the inner shell 2 is not affected. The local instantaneous high temperature can help to eliminate the surface stress of the metal substrate and the plastic.
S9, cleaning, namely performing ultrasonic cleaning on the outer shell 1. After wire drawing and polishing, ultrasonic cleaning was performed in warm water. The crystallinity of the nano-scale crystalline plastic (PBT or PPS) can be increased by ultrasonic vibration in the ultrasonic cleaning process, and the dimensional stability of the nano-scale crystalline plastic is improved. The surface polishing wire drawing and ultrasonic cleaning post-treatment procedures are utilized, so that the appearance of the outer shell 1 can be ensured, the long-time high-temperature baking procedure in the traditional nano injection molding process can be omitted, and the production efficiency is greatly improved.
S10, hot melting assembly of the perspective observation window 13, referring to fig. 1 and 2, placing an observation window sealing ring 132 in a sealing groove 131, enabling a hot pressing cylinder 133 to pass through a hot pressing hole site 12 reserved on the outer shell 1 and enabling the perspective observation window 13 to be attached to the outer shell 1, and then pressing the part of the hot pressing cylinder 133 passing through the hot pressing hole site 12 through a hot pressing plate, so that the diameter of the part of the hot pressing cylinder 133 passing through the hot pressing hole site 12 is increased and is in hard contact with the inner bottom surface of the outer shell 1, and fixing the perspective observation window 13 on the outer shell 1.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (10)
1. The nano injection molding manufacturing process for the composite deep frame shell is characterized by comprising an outer shell and an inner shell injection molded in the outer shell, and comprises the following steps of:
s1, stamping, namely stamping a metal plate to obtain an outer shell (1);
s2, chemical treatment, namely treating the inner surface of the outer shell (1) through treatment liquid medicine to form nanoscale holes;
s3, preheating, namely placing the outer shell (1) into a die, and preheating through the die;
s4, injection molding is carried out on the inner surface of the outer shell (1) to obtain an inner shell (2);
s5, demolding, and taking the outer shell (1) out of the mold;
s6, polishing, namely polishing and wiredrawing the outer shell (1);
s7, cleaning, namely performing ultrasonic cleaning on the outer shell (1).
2. The nano injection molding manufacturing process of the composite deep frame shell according to claim 1, wherein the inner shell (2) is provided with round corner parts (31), the glue inlet is arranged at the round corner parts (31) during injection molding, each round corner part (31) is correspondingly provided with a glue inlet, and after the inner shell (2) is molded, the glue inlet is cut off by machining.
3. The composite deep frame shell nano injection molding manufacturing process according to claim 1, wherein a limiting rod (5) is arranged on the die during injection molding, the limiting rod (5) is arranged on the end face of the outer shell (1) along the circumferential direction of the outer shell (1), and the limiting rod (5) is suitable for limiting the outer shell (1).
4. The composite deep frame shell nano injection molding manufacturing process according to claim 1, wherein an ejector rod (6) is arranged on the mold during injection molding, the ejector rod (6) is arranged on the end face of the outer shell (1) along the circumferential direction of the outer shell (1), and the ejector rod (6) is suitable for ejecting the outer shell (1) from the mold.
5. The composite deep frame shell nano injection molding manufacturing process according to claim 1, wherein after the outer shell (1) is ejected, the outer shell (1) and the inner shell (2) are subjected to uniform temperature shaping.
6. The composite deep frame shell nano injection molding manufacturing process according to claim 1, wherein after the outer shell (1) is demolding, the outer shell (1) is subjected to uniform temperature shaping through a uniform temperature cooling shaping tool, the uniform temperature cooling shaping tool comprises a uniform Wen Naxin (73) and a uniform temperature cover (74), the uniform Wen Naxin (73) is inserted into the inner shell (2) and is attached to the inner shell (2), and the uniform temperature cover (74) is in hard contact with the bottom surface of the main shell and is connected with the uniform Wen Naxin (73) through bolts.
7. The composite deep frame shell nano injection molding manufacturing process according to claim 1, wherein the surface of the outer shell (1) is wire-drawn polished during polishing, so that local instantaneous high temperature formed on the surface of the outer shell (1) helps to eliminate surface stress between the outer shell (1) and the inner shell (2).
8. The nano injection molding manufacturing process of the composite deep frame shell according to claim 1, wherein during cleaning, the outer shell (1) is subjected to ultrasonic cleaning, so that the crystallinity of the inner shell (2) is increased by ultrasonic oscillation during cleaning.
9. A composite deep frame shell, characterized in that the composite deep frame shell nano injection molding manufacturing process according to any one of claims 1-8 is applied.
10. The composite deep frame enclosure of claim 9, comprising
An outer case (1);
an inner shell (2), wherein the inner shell (2) is injection molded in the outer shell (1), and a round corner part (31) is arranged on the inner shell (2);
the arc supporting part (32) is concavely arranged, and is arranged corresponding to the round corner part (31) of the inner shell (2);
a reinforcing bottom piece (33), wherein the reinforcing bottom piece (33) is connected with the arc supporting part (32) and the bottom surface of the outer shell (1) at the same time;
the inner support piece (34) is arranged between the arc supporting part (32) and the inner shell (2) and is positioned at the bottom of the arc supporting part (32), and the inner support piece (34) is connected with the inner shell (2), the arc supporting part (32) and the outer shell (1) at the same time;
the inner supporting piece (34) is connected with a cover closing stud (341), a first embedded nut (342) is arranged in the cover closing stud (341), and the first embedded nut (342) is suitable for being connected with a cover plate;
the closing cap stud (341) is connected with the arc supporting part (32) through a reinforcing rib (343);
the reinforcing ribs (343) are arranged in pairs;
an ejection part (331) is arranged on the side surface of the reinforcing bottom plate (33), and the ejection part (331) is connected with the bottom surface of the outer shell (1);
the waterproof rib (36) is arranged on the end face of the inner shell (2), the waterproof rib (36) is circumferentially arranged along the inner shell (2) and is in a closed state, and the waterproof rib (36) is suitable for being matched with the cover plate;
the reinforcing bottom plate (33) is provided with an injection molding nut part (332), a second embedded nut (333) is arranged in the injection molding nut part (332), and the second embedded nut (333) is in hard contact with the bottom surface of the outer shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311229609.1A CN117261104A (en) | 2023-09-21 | 2023-09-21 | Nano injection molding manufacturing process for composite deep frame shell and composite deep frame shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311229609.1A CN117261104A (en) | 2023-09-21 | 2023-09-21 | Nano injection molding manufacturing process for composite deep frame shell and composite deep frame shell |
Publications (1)
| Publication Number | Publication Date |
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| CN117261104A true CN117261104A (en) | 2023-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311229609.1A Pending CN117261104A (en) | 2023-09-21 | 2023-09-21 | Nano injection molding manufacturing process for composite deep frame shell and composite deep frame shell |
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| Country | Link |
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| CN (1) | CN117261104A (en) |
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2023
- 2023-09-21 CN CN202311229609.1A patent/CN117261104A/en active Pending
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