CN107891570B - Wire embedded plastic part and manufacturing method thereof - Google Patents
Wire embedded plastic part and manufacturing method thereof Download PDFInfo
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- CN107891570B CN107891570B CN201710992193.7A CN201710992193A CN107891570B CN 107891570 B CN107891570 B CN 107891570B CN 201710992193 A CN201710992193 A CN 201710992193A CN 107891570 B CN107891570 B CN 107891570B
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- wire
- plastic part
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- injection molding
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- 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
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- 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
- B29C2045/14237—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 the inserts being deformed or preformed outside the mould or mould cavity
Abstract
The invention discloses a wire embedded plastic part and a manufacturing method thereof, wherein the manufacturing method of the wire embedded plastic part comprises the following steps: wiring and arranging the wires by using the fixing buckles; curing the surface of the wire rod after the routing arrangement; placing the cured wire into a mold of an injection molding piece to be molded, wherein two end parts of the wire are exposed outside the mold of the injection molding piece; and demolding to obtain the plastic part with the wire embedded. According to the technical scheme provided by the invention, through the Inside mold process, the wire is sealed in the plastic part, and when the electronic device and other equipment are used, the wire cannot vibrate and the use effect of the equipment cannot be influenced due to noise.
Description
Technical Field
The invention relates to the technical field of injection molding, in particular to a wire embedded plastic part and a manufacturing method thereof.
Background
Along with the diversification of functions, a plurality of circuits are generally integrated in the electronic device, at the moment, the wires required by the circuits need to be manually arranged by adopting EVA or 3M glue, and certain noise is generated due to the vibration of the wires in the use process of the electronic device (such as a sound box product), so that the use effect of the electronic device is influenced.
Disclosure of Invention
The invention mainly aims to provide a wire embedded plastic part and a manufacturing method thereof, and aims to solve the technical problem that the use effect of an electronic device is influenced due to noise generated by wire arrangement in the prior art.
In order to achieve the above object, the present invention provides a method for manufacturing a wire-embedded plastic part, comprising:
wiring and arranging the wires by using the fixing buckles;
curing the surface of the wire rod after the routing arrangement;
placing the cured wire into a mold of an injection molding piece to be molded, wherein two end parts of the wire are exposed outside the mold of the injection molding piece;
and demolding to obtain the plastic part with the wire embedded.
Preferably, the wire includes a plurality of wire harnesses arranged side by side, and the step of curing the surface of the wire after routing arrangement includes:
and coating a layer of fixing resin on the surfaces of the wire harnesses which are arranged side by side.
Preferably, the fixing resin is acrylonitrile-butadiene-styrene.
Preferably, the step of coating a layer of fixing resin on the surfaces of the wire harnesses placed side by side includes:
the surface of the strands placed side by side was coated with 0.3-1mm of acrylonitrile-butadiene-styrene.
Preferably, the method for manufacturing the wire-embedded plastic part further comprises:
and the two end parts of the wire rod are provided with DuPont needles for automatically inserting the wire rod to the PCBA.
Preferably, the step of routing and arranging the wires by using the fixing buckles includes:
designing the routing arrangement of the wires according to the slot position of the PCBA to be spliced;
acquiring corner positions and corner shapes in the routing arrangement;
and a fixing buckle consistent with the corner shape is arranged at the corner position.
In order to achieve the purpose, the invention provides a wire embedded plastic part, which comprises a wire and an injection molding part; the wires are arranged in a preset routing arrangement; the wire is arranged in a mould of the injection molding piece and is subjected to injection molding together with the injection molding piece.
Preferably, the wire comprises a plurality of wire harnesses arranged side by side, and the surfaces of the plurality of wire harnesses are coated with a layer of fixing resin.
Preferably, the fixing resin is acrylonitrile-butadiene-styrene, and the thickness of the fixing resin is 0.3-1 mm.
Preferably, two ends of the wire are provided with dupont needles for automatic insertion onto the PCBA.
According to the technical scheme provided by the invention, the wires (such as the wires in the machine with the surfaces made of PVC, PE and the like) are arranged by adopting the buckles, and then the surfaces of the wires are subjected to curing treatment so as to basically form the soft wires, so that the overall shape of the treated wires is not changed, and the arrangement is more reliable; and then the solidified wire is put into a mold of an injection molding part to be molded, such as a shell of a sound box, and after demolding, the wire is embedded into the molded plastic part. Through the Inside mold process, the wire is sealed in the plastic part, and when the equipment such as an electronic device and the like is used, the wire cannot vibrate and the use effect of the equipment cannot be influenced due to noise.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic flow chart illustrating a first embodiment of a method for manufacturing a wire-embedded plastic part according to the present invention;
FIG. 2 is a schematic flow chart illustrating a second embodiment of a method for manufacturing a plastic part with an embedded wire according to the present invention;
fig. 3 is a detailed flow chart illustrating a step of routing and arranging wires by using a fixing buckle in a third embodiment of the method for manufacturing a wire-embedded plastic part according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a first embodiment of a method for manufacturing a wire-embedded plastic part according to the present invention, the method comprising:
and S100, wiring the wires by using the fixing buckles.
Specifically, the inside of equipment such as an electronic device and the like needs to use wires to realize connection between electronic devices, specifically, ports of the wires are plugged on the PCBA. Because the positions of the sockets on the PCBA are dispersed, the wires need to be arranged so that the ports of the wires correspond to the sockets on the PCBA. In this embodiment, use fixed buckle to walk the line to arrange the wire rod, this fixed buckle includes the one end open-ended chamber that holds, and the wire rod holds the chamber from the opening part, is detained holding the intracavity, and this fixed buckle can be for having certain elastic plastic part or rubber spare. Compared with the mode of using EVA or 3M glue to paste the wire rod and come the wiring, use fixed buckle to have higher reliability. In practical applications, the wire may need to be designed into an S-shape or a U-shape, etc. according to the specific position of the socket on the PCBA, and then a fixing buckle is needed to be used at the corner of the wire to shape the wire.
And step S200, curing the surface of the wire rod after the wire arrangement.
It can be understood that after the wiring is arranged, because the material of wire rod is soft partially, the wire rod still easily offsets with the position of design mutually, carries out solidification treatment back to the surface of wire rod, and the material of wire rod is hard partially for the shape of wire rod is difficult for changing, thereby makes the position of wire rod can not change at will. The surface of the wire is generally coated with a layer of insulating skin made of plastic or rubber for effectively preventing electric leakage and electric shock. The surface of the wire rod can be cured by coating a layer of resin or glue which has an adhesive effect and is cured after adhesion.
Step S300, placing the cured wire into a mold of an injection molding piece to be molded, wherein two end parts of the wire are exposed outside the mold of the injection molding piece;
and step S400, demolding to obtain the plastic part with the wire embedded.
Specifically, the wire rod after being cured is placed in a mold of an injection molding part to be molded, such as a speaker housing, it should be noted that the wire rod needs to be positioned so as to be placed at a set position in the mold, two end portions of the wire rod need to be exposed out of the mold, and then the end portions are inserted onto the PCBA to realize electrical connection between electrical components.
In the process of moulding plastics, the wire rod is fused inside the injection molding, and the drawing of patterns back obtains the plastic part of wire rod embedding to solved the problem that causes the noise because the wire rod vibration in the electron device use, in addition because the wire rod is moulded plastics inside the product (for example audio amplifier shell), do not contact with external environment, be difficult to damage.
According to the technical scheme provided by the invention, the wires (such as the wires in the machine with the surfaces made of PVC, PE and the like) are arranged by adopting the buckles, and then the surfaces of the wires are subjected to curing treatment so as to basically form the soft wires, so that the overall shape of the treated wires is not changed, and the arrangement is more reliable; and then the solidified wire is put into a mold of an injection molding part to be molded, such as a shell of a sound box, and after demolding, the wire is embedded into the molded plastic part. Through the Inset molding process, the wire is sealed in the plastic part, and when equipment such as an electronic device and the like is used, the wire cannot vibrate and the use effect of the equipment cannot be influenced due to noise.
Further, the wire rod includes a plurality of wire harnesses arranged side by side, and the step S200 of curing the surface of the wire rod after the routing arrangement includes:
step S101, coating a layer of fixing resin on the surfaces of the wire harnesses which are arranged side by side.
Specifically, according to the demand of actual transmission signal, the port of pegging graft with the socket on the PCBA on the wire rod is connected with a plurality of pencil, places a plurality of pencil side by side so, is convenient for on the one hand be connected with the port, and on the other hand is convenient for use fixed resin comes the many pencil of solidification simultaneously. The fixing resin is preferably acrylonitrile-butadiene-styrene, and the coating thickness is 0.3 to 1mm, preferably 0.5 mm.
Further, referring to fig. 2, a second embodiment of the method for manufacturing a plastic part with an embedded wire according to the present invention is provided, and the method for manufacturing a plastic part with an embedded wire further includes:
and step S500, arranging DuPont needles at two end parts of the wire rod for automatically inserting the wire rod to the PCBA.
In this embodiment, set up the dupont needle at the both ends of wire rod, the cross section of the syringe needle of dupont needle is 1mm generally, compares with general PIN needle, has higher intensity, can realize with PCBA's automatic installation and production, realizes the automated production at audio amplifier and other trades. It should be noted that, in the prior art, the PIN needles used at the two ends of the wire rod are too thin and small in strength, and can only be manually inserted into the PCBA, and the automatic production can be realized by adopting the dupont needle, so that a large amount of labor cost is saved, and the production efficiency is also improved.
It will be appreciated that depending on the actual situation, the setting of the dupont needle is timed, for example before the wire is placed in the mould; or after demolding.
Further, referring to fig. 3, a third embodiment of the method for manufacturing a plastic part with embedded wires according to the present invention is that, on the basis of the second embodiment, the step S100 of routing and arranging the wires by using the fixing buckles includes:
step S201, designing the routing arrangement of wires according to the slot position of the PCBA to be spliced;
step S202, obtaining corner positions and corner shapes in the routing arrangement;
and step S203, arranging a fixing buckle consistent with the corner shape at the corner position.
Specifically, the arrangement of the wires, such as an S shape, a U shape, a triangle shape, etc., is designed according to the slot position of the PCBA to be plugged, and it can be understood that in order to realize these different shapes, the corner positions of the wires must be fixed, and the shapes of the corners are different for the different shapes, such as the corners are arc-shaped for the S-shaped or U-shaped wire arrangement; for triangular wire arrangement, the corners are pointed.
In this embodiment, according to PCBA's slot position, design arranging of wire rod to corresponding set up the fixed buckle of suitable shape in the corner in order to realize specifically arranging of wire rod, so that follow-up can accomplish wire rod and PCBA's assembly automatically, use manpower sparingly and improve production efficiency.
The invention also provides a plastic part with embedded wires, which comprises the wires and an injection molding part in one embodiment; the wires are arranged in a preset routing arrangement; the wire is arranged in a mould of the injection molding piece and is subjected to injection molding together with the injection molding piece.
According to the technical scheme provided by the invention, the wires (such as the wires in the machine with the surfaces made of PVC, PE and the like) are arranged by adopting the buckles, and then the surfaces of the wires are subjected to curing treatment so as to basically form the soft wires, so that the overall shape of the treated wires is not changed, and the arrangement is more reliable; and then the solidified wire is put into a mold of an injection molding part to be molded, such as a shell of a sound box, and after demolding, the wire is embedded into the molded plastic part. Through the Inside mold process, the wire is sealed in the plastic part, and when the equipment such as an electronic device and the like is used, the wire cannot vibrate and the use effect of the equipment cannot be influenced due to noise.
Preferably, the wire comprises a plurality of wire harnesses arranged side by side, and the surfaces of the plurality of wire harnesses are coated with a layer of fixing resin. Specifically, the fixing resin is acrylonitrile-butadiene-styrene, and the thickness of the fixing resin is 0.3-1 mm.
Preferably, two ends of the wire are provided with dupont needles for automatic insertion onto the PCBA. The cross section of the needle head of the DuPont needle is generally 1mm multiplied by 1mm, and compared with a common PIN needle, the DuPont needle has higher strength, can realize automatic installation and production with PCBA, and realizes automatic production in sound boxes and other industries.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A method for manufacturing a wire-embedded plastic part is characterized by comprising the following steps:
wiring and arranging the wires by using the fixing buckles;
coating resin or glue on the surfaces of the wires after the wires are distributed for curing;
placing the cured wire into a mold of an injection molding piece to be molded, wherein two end parts of the wire are exposed outside the mold of the injection molding piece;
and (4) obtaining a plastic part with wires embedded after demolding, wherein the wires are fused in the plastic part.
2. The method for manufacturing a wire-embedded plastic part according to claim 1, wherein the wire comprises a plurality of wire bundles arranged side by side, and the step of curing the resin coated on the surface of the wire arranged with the wire bundles comprises:
and coating a layer of fixing resin on the surfaces of the wire harnesses which are arranged side by side.
3. The method of manufacturing a wire-embedded plastic part according to claim 2, wherein the fixing resin is acrylonitrile butadiene styrene.
4. The method of manufacturing a wire-embedded plastic part according to claim 3, wherein the step of coating a surface of the wire harnesses placed side by side with a fixing resin comprises:
the surface of the strands placed side by side was coated with 0.3-1mm of acrylonitrile-butadiene-styrene.
5. The method of manufacturing a wire-embedded plastic part according to any one of claims 1 to 4, further comprising:
and the two end parts of the wire rod are provided with DuPont needles for automatically inserting the wire rod to the PCBA.
6. The method for manufacturing the wire-embedded plastic part according to claim 5, wherein the step of routing the wires by using the fixing buckles comprises:
designing the routing arrangement of the wires according to the slot position of the PCBA to be spliced;
acquiring corner positions and corner shapes in the routing arrangement;
and a fixing buckle consistent with the corner shape is arranged at the corner position.
7. A wire embedded plastic part is characterized by comprising a wire and an injection molding part; the wires are arranged in a preset routing arrangement; and coating resin or glue on the surfaces of the wires arranged in the wiring manner for curing, arranging the wires subjected to curing in a mold of the injection molding part, and performing injection molding together with the injection molding part, wherein the wires are fused in the plastic part.
8. The wire-embedded plastic part according to claim 7, wherein the wire comprises a plurality of strands arranged side by side, and a surface of the plurality of strands is coated with a layer of fixing resin.
9. The wire-embedded plastic part according to claim 8, wherein the fixing resin is acrylonitrile butadiene styrene, and the fixing resin has a thickness of 0.3 to 1 mm.
10. The wire-embedded plastic part according to any one of claims 7-9, wherein both ends of the wire are provided with dupont pins for automatic insertion onto a PCBA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710992193.7A CN107891570B (en) | 2017-10-23 | 2017-10-23 | Wire embedded plastic part and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710992193.7A CN107891570B (en) | 2017-10-23 | 2017-10-23 | Wire embedded plastic part and manufacturing method thereof |
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| CN107891570A CN107891570A (en) | 2018-04-10 |
| CN107891570B true CN107891570B (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710992193.7A Active CN107891570B (en) | 2017-10-23 | 2017-10-23 | Wire embedded plastic part and manufacturing method thereof |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203734794U (en) * | 2013-12-16 | 2014-07-23 | Tcl通力电子（惠州）有限公司 | Sound box and box body |
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- 2017-10-23 CN CN201710992193.7A patent/CN107891570B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203734794U (en) * | 2013-12-16 | 2014-07-23 | Tcl通力电子（惠州）有限公司 | Sound box and box body |
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| CN107891570A (en) | 2018-04-10 |
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Address after: 516006 community 37, Zhongkai high tech Zone, Huizhou, Guangdong Patentee after: Tongli Technology Co.,Ltd. Address before: 516006 Zhongkai high tech Zone 37, Huizhou, Guangdong Patentee before: TONLY ELECTRONICS HOLDINGS Ltd. |
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