CN116533443B - Wire harness insulating layer injection molding device - Google Patents

Wire harness insulating layer injection molding device Download PDF

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Publication number
CN116533443B
CN116533443B CN202310808526.1A CN202310808526A CN116533443B CN 116533443 B CN116533443 B CN 116533443B CN 202310808526 A CN202310808526 A CN 202310808526A CN 116533443 B CN116533443 B CN 116533443B
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CN
China
Prior art keywords
injection molding
lower die
wire harness
upper die
hollow cylinder
Prior art date
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Active
Application number
CN202310808526.1A
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Chinese (zh)
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CN116533443A (en
Inventor
蒋强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taicang Koston Automotive Parts Co ltd
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Taicang Koston Automotive Parts Co ltd
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Publication date
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Priority to CN202310808526.1A priority Critical patent/CN116533443B/en
Publication of CN116533443A publication Critical patent/CN116533443A/en
Application granted granted Critical
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection 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
    • B29C45/14639Injection 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 for obtaining an insulating effect, e.g. for electrical components
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/1753Cleaning or purging, e.g. of the injection unit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/27Sprue channels ; Runner channels or runner nozzles
    • B29C45/2701Details not specific to hot or cold runner channels
    • B29C45/2708Gates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/4005Ejector constructions; Ejector operating mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/72Heating or cooling
    • B29C45/73Heating or cooling of the mould
    • B29C45/7312Construction of heating or cooling fluid flow channels
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06Insulating conductors or cables
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22Sheathing; Armouring; Screening; Applying other protective layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection 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
    • B29C2045/1486Details, accessories and auxiliary operations
    • B29C2045/14868Pretreatment of the insert, e.g. etching, cleaning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/34Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3462Cables
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The application relates to the field of wire harness injection molding, in particular to a wire harness insulating layer injection molding device. The technical problems of the application are as follows: the temperature difference between the upper die and the lower die is large, the injection molding operation is influenced, and the region between the bifurcation lines cannot be completely filled to influence the use. The technical implementation scheme of the application is as follows: the wire harness insulating layer injection molding device comprises a processing platform, a mounting rack, a push rod, an upper die, a lower die and the like; the processing platform is fixedly connected with a mounting frame; the mounting frame is fixedly connected with two push rods for opening and closing the die; the two push rod telescopic parts are jointly provided with an upper die, and the upper die is provided with two convex blocks; the processing platform is provided with a lower die, the lower die is provided with a storage groove, and the lower die is matched with the upper die. According to the application, the first scraping plate attached to the inner wall of the first hollow cylinder cuts off the wire-drawn material between the spray head and the first hollow cylinder through hole, so that the wire-drawn material between the spray head and the first hollow cylinder through hole is prevented from affecting normal injection molding.

Description

Wire harness insulating layer injection molding device
Technical Field
The application relates to the field of wire harness injection molding, in particular to a wire harness insulating layer injection molding device.
Background
In the existing wire harness injection molding process, the following problems exist;
1. in the process of wire harness injection molding, because injection molding is carried from top to bottom, injection molding materials are filled between an upper mold and a lower mold from an injection molding opening, the injection molding opening is positioned in the upper mold, the temperature of the injection molding materials is continuously transmitted into the upper mold, the temperature of the upper mold is continuously increased, the lower mold is connected with a metal base, the metal base absorbs the temperature of the lower mold, the temperature of the lower mold is continuously reduced, so that the temperature difference between the upper mold and the lower mold is gradually increased, the injection molding materials are easy to remain on the mold with higher temperature when injection molding operation is carried out, the subsequent injection molding operation is influenced, and the cleaning is troublesome;
2. in the process of injection molding operation, a common injection mold only has one injection molding opening, and when the injection molding of the bifurcation wire harness is carried out, the area between the bifurcation wires cannot be completely filled, so that after the injection molding of the bifurcation wire harness is completed, a plurality of gaps exist in the injection molding area of the bifurcation wire harness, and the injection molding area of the bifurcation wire harness is easy to crack when in use, so that the use is influenced.
Disclosure of Invention
In order to overcome the defects that the temperature difference between an upper die and a lower die is large, the injection molding operation is influenced, and the use is influenced because the area between bifurcation wires cannot be completely filled, the application provides the wire harness insulating layer injection molding device.
The technical implementation scheme of the application is as follows: the wire harness insulating layer injection molding device comprises a processing platform, a mounting rack, a push rod, an upper die and a lower die; the processing platform is fixedly connected with a mounting frame; the mounting frame is fixedly connected with two push rods for opening and closing the die; the two push rod telescopic parts are jointly provided with an upper die, and the upper die is provided with two convex blocks; a lower die is arranged on the processing platform, a storage groove is formed in the lower die, and the lower die is matched with the upper die; the device also comprises a water conveying pipeline, a rotating roller and a cutting plate; the water delivery pipeline is provided with an outlet and an inlet, the water delivery pipeline outlet in the upper die is communicated with the water delivery pipeline inlet in the lower die, and the water delivery pipeline inlet in the upper die and the water delivery pipeline outlet in the lower die are communicated with an external pump, so that water in the two water delivery pipelines is circulated; two rotating rollers which are symmetrical in front-back direction are rotationally connected in the lower die, a torsion spring is arranged at the joint of the lower die and the rotating rollers, a pressing plate is arranged on each of the two rotating rollers, the pressing plate is positioned in the storage groove, the pressing plate is matched with the convex blocks, and sharp cones are arranged on each of the two rotating rollers; the lower die is internally connected with two cutting plates which are symmetrical front and back and used for pushing injection molding objects in a sliding manner, the lower die is internally connected with a reset spring, the other end of the reset spring is fixed on the cutting plate, the extension direction of the reset spring is the same as the sliding track direction of the cutting plate, the surface of the injection molding position of the cutting plate and the lower die is attached, and the cutting plate is matched with the pointed cone.
Optionally, a reinforced injection molding system is also included; the upper die and the lower die are jointly provided with a reinforced injection molding system; the reinforced injection molding system comprises a first hollow cylinder, an injection tube, a first scraping plate and an anti-residual component; a plurality of first hollow cylinders are arranged in the lower die, and a first round table for reserving screw hole sites is arranged on all the first hollow cylinders; the upper die is provided with a plurality of injection tubes which are matched with the first hollow cylinder, the injection tubes are provided with spray heads, and the injection tubes are provided with second round tables; each injection tube is rotatably connected with a first scraping plate, and a torsion spring is arranged at the joint of the first scraping plate and the injection tube; the push rod and the upper die are jointly provided with an anti-residual component.
Optionally, all first hollow cylinder lateral walls all open there is the through-hole, and the through-hole all faces the bed die center, and the through-hole cooperates with the shower nozzle.
Optionally, the nozzle is in sliding connection with the injection tube, and a spring is arranged at the nozzle and the injection tube.
Optionally, a chamfer is provided on the first scraper.
Optionally, the residue prevention assembly comprises a fixed plate, a second hollow cylinder, an L-shaped plate, a rotary shell, a positioning column, a conveying pipeline and a second scraper; the two push rod fixing parts are fixedly connected with a fixing plate; the injection port of the upper die is fixedly connected with a second hollow cylinder; two L-shaped plates are arranged on the second hollow cylinder, and a spring for resetting the L-shaped plates is arranged at the joint of the second hollow cylinder and the L-shaped plates; the second hollow cylinder is rotationally connected with a rotating shell, and a torsion spring is arranged at the joint of the second hollow cylinder and the rotating shell; the bottom of the fixed plate is fixedly connected with a positioning column for pushing the rotating shell, and the positioning column is matched with the rotating shell; a conveying pipeline for replacing injection molding of an injection port is fixedly connected in the rotary shell, and the injection pipe is matched with the conveying pipeline; the opposite sides of the two L-shaped plates are respectively connected with a second scraping plate in a sliding manner, the second scraping plates are used for cutting off residual injection molding materials, and springs are arranged at the joints of the second scraping plates and the L-shaped plates.
Optionally, a stretching system is also included; a stretching system is arranged on the processing platform; the stretching system comprises a fixing frame and a straightening component; the right side of the lower die is fixedly connected with a fixing frame for fixing the wire harness, and a first friction layer for enhancing friction is arranged in the fixing frame; two straightening assemblies are arranged on the processing platform and are positioned on the left side of the lower die.
Optionally, the straightening component comprises a mounting bracket and an electric swivel; the processing platform is fixedly connected with a mounting bracket; the mounting bracket is rotationally connected with two electric swivel rings for pulling the wire harness.
Optionally, the device also comprises a limiting ring and a positioning plate; each mounting bracket is rotationally connected with two limiting rings, a second friction layer is arranged in each limiting ring, two buckling pieces are arranged on one side, facing the adjacent limiting rings, of each electric rotating ring, each buckling piece is deformable, buckling heads are arranged on one side, facing the adjacent electric rotating ring, of each limiting ring, all the limiting rings are matched with the corresponding electric rotating ring for pulling the branch wire harness auxiliary wire, and the limiting rings are connected with the electric rotating rings through the buckling heads and the buckling pieces; four positioning plates are fixedly connected to the processing platform respectively, and the four positioning plates are matched with the corresponding limiting rings.
Optionally, vertical bars are arranged on the first friction layer and the second friction layer.
The application has the following advantages: according to the application, the water in the water conveying pipeline in the upper die is transferred to the water in the water conveying pipeline in the lower die through the pump, so that the water absorbed by the temperature of the upper die is transferred to the lower die, the temperature of the lower die is increased, the influence on the normal molding of injection molded articles due to lower die temperature is avoided, the water at the normal temperature in the lower die is transferred to the upper die, the temperature of the upper die is continuously absorbed, and the influence on the subsequent injection molding operation due to the fact that injection molding materials remain on the die with higher temperature is avoided.
According to the application, the cutting plate is pushed out through the pointed cone, and pushes the injection molded object, so that the injection molded object is separated from the lower die, and the injection molded object can be conveniently taken away by a worker.
According to the application, the branch line bundles are injected through the nozzle auxiliary injection port, so that the injection port is mainly used for injecting injection materials in the injection process, and the nozzle is used for carrying out supplementary injection on places which are difficult to be filled with the injection materials rapidly, so that the area between the branch lines is filled completely rapidly, and a better injection effect is achieved.
According to the application, the residual injection molding material at the through hole on the first hollow cylinder is pushed out by the spray head, so that the residual injection molding material is prevented from blocking the through hole of the first hollow cylinder, and the subsequent injection molding operation is prevented from being influenced.
According to the application, the first scraping plate attached to the inner wall of the first hollow cylinder cuts off the wire-drawn material between the spray head and the first hollow cylinder through hole, so that the wire-drawn material between the spray head and the first hollow cylinder through hole is prevented from affecting normal injection molding.
According to the application, the injection molding material staying at the bottom surface of the rotating shell is pushed by the L-shaped plate, the residual injection molding material staying at the bottom surface of the rotating shell starts to loosen, the residual injection molding material staying at the bottom surface of the rotating shell is cut off by the second scraping plate, and the residual injection molding material staying at the bottom surface of the rotating shell can be better cut off by the second scraping plate through the rotation of the rotating shell, so that the residual injection molding material at an injection port is prevented from influencing the strength and quality of subsequent injection molding.
According to the application, the auxiliary line of the forked wire harness is straightened through the limiting ring and the electric swivel, and when the auxiliary line of the forked wire harness is straightened and the limiting ring and the electric swivel continue to pull the auxiliary line of the forked wire harness, the limiting ring and the electric swivel lose connection, the electric swivel does not pull the auxiliary line of the forked wire harness any more, and the damage to the auxiliary line of the forked wire harness caused by different bending degrees of the auxiliary line of the forked wire harness is avoided.
Drawings
FIG. 1 is a schematic diagram of a structure of an injection molding apparatus for wire harness insulation layer according to the present application;
FIG. 2 is a schematic view of a part of the structure of the wire harness insulation layer injection molding apparatus of the present application;
FIG. 3 is a cross-sectional view of a first partial construction of the disclosed wire harness insulation injection molding apparatus of the present application;
FIG. 4 is a sectional view of a second partial structure of the wire harness insulation injection molding apparatus of the present application;
FIG. 5 is a cross-sectional view of a third partial construction of the wire harness insulation injection molding apparatus of the present application;
FIG. 6 is a cross-sectional view of a fourth partial structure of the wire harness insulation injection molding apparatus of the present application;
FIG. 7 is a sectional view of a fifth part of the construction of the wire harness insulation injection molding apparatus of the present application;
FIG. 8 is an enlarged view of the portion A of FIG. 7 of the wire harness insulation layer injection molding apparatus of the present application;
FIG. 9 is a schematic view of the structure of the injection tube and the first scraper disclosed in the wire harness insulation layer injection molding apparatus of the present application;
FIG. 10 is a schematic view of a first construction of a straightening assembly in a stretching system disclosed in the wire harness insulation injection molding apparatus of the present application;
FIG. 11 is a sectional view of a sixth intermediate part of the construction of the wire harness insulation injection molding apparatus of the present application;
fig. 12 is a schematic view showing a second structure of a straightening assembly in a stretching system disclosed in the wire harness insulation injection molding apparatus of the present application.
Reference numerals in the figures: 1-processing platform, 2-mounting frame, 3-push rod, 4-upper die, 5-lower die, 6-water pipeline, 7-rotating roller, 8-cutting board, 101-first hollow cylinder, 102-injection tube, 103-first scraping plate, 110-fixed plate, 111-second hollow cylinder, 112-L-shaped plate, 113-rotating shell, 114-positioning column, 115-conveying pipeline, 116-second scraping plate, 201-fixing frame, 202-mounting bracket, 203-electric rotating ring, 204-limiting ring, 205-positioning plate, 4 a-bump, 5 a-storage groove, 7 a-pressing plate, 7 b-pointed cone, 101 a-first round table, 102 a-spray head, 102 b-second round table, 201 a-first friction layer, 204 a-second friction layer, 8 a-reset spring, 203 a-buckle piece and 204 b-buckle head.
Detailed Description
The following describes the technical scheme with reference to specific embodiments, and it should be noted that: terms indicating orientations, such as up, down, left, right, etc., are used herein only with respect to the position of the illustrated structure in the corresponding drawings. The parts themselves are numbered herein, for example: first, second, etc. are used solely to distinguish between the described objects and do not have any sequential or technical meaning. The application is as follows: connection, coupling, unless specifically stated otherwise, includes both direct and indirect connection (coupling).
Example 1
The wire harness insulating layer injection molding device comprises a processing platform 1, a mounting frame 2, a push rod 3, an upper die 4 and a lower die 5 as shown in figures 1-5 and 11; the rear side of the processing platform 1 is fixedly connected with a mounting frame 2; two push rods 3 distributed left and right are fixedly connected to the front side of the mounting frame 2; the telescopic parts of the two push rods 3 are jointly provided with an upper die 4, and the upper die 4 is provided with two convex blocks 4a; a lower die 5 is arranged on the processing platform 1, a storage groove 5a is formed in the lower die 5, and the lower die 5 is matched with the upper die 4;
the device also comprises a water conveying pipeline 6, a rotating roller 7 and a cutting plate 8; the water delivery pipelines 6 are respectively arranged in the upper die 4 and the lower die 5, an outlet and an inlet are arranged on the water delivery pipelines 6, the outlet of the water delivery pipeline 6 in the upper die 4 is communicated with the inlet of the water delivery pipeline 6 in the lower die 5, and the inlet of the water delivery pipeline 6 in the upper die 4 and the outlet of the water delivery pipeline 6 in the lower die 5 are communicated with an external pump, so that water in the two water delivery pipelines 6 is circulated; the lower die 5 is rotationally connected with two rotating rollers 7 which are symmetrical in front-back, a torsion spring is arranged at the joint of the lower die 5 and the rotating rollers 7, a pressing plate 7a is arranged on each of the two rotating rollers 7, the pressing plate 7a is positioned in the object placing groove 5a, the pressing plate 7a is matched with the convex block 4a, and a pointed cone 7b is arranged on each of the two rotating rollers 7; the lower die 5 is connected with two cutting plates 8 in a sliding mode, the cutting plates 8 are symmetrical in front and back, a reset spring 8a is connected in the lower die 5, the other end of the reset spring 8a is fixed on the cutting plates 8, the extending and retracting directions of the reset spring 8a are the same as the sliding track directions of the cutting plates 8, the cutting plates 8 are attached to the surface of an injection molding position of the lower die 5, and the cutting plates 8 are matched with the pointed cone 7 b.
When injection molding operation is needed, the upper die 4 is driven to move upwards or downwards by pushing out or retracting the push rod 3, so that the upper die 4 and the lower die 5 perform die opening and closing actions, the inlet of the water conveying pipeline 6 is communicated with an external pump, water in the water conveying pipeline 6 in the upper die 4 and the lower die 5 is replaced by the pump during injection molding, the temperature of the upper die 4 is reduced by the water in the water conveying pipeline 6 in the upper die 4, then the water in the upper water conveying pipeline 6 and the water in the lower water conveying pipeline 6 are exchanged by providing power by the pump during injection molding operation, the water absorbing the temperature of the upper die 4 is transferred into the lower die 5, the temperature of the lower die 5 is increased, the influence on the normal molding of injection molded articles due to lower die temperature is avoided, the water at the normal temperature in the lower die 5 is transferred into the upper die 4, the temperature of the upper die 4 is continuously absorbed, injection molding materials are prevented from remaining on the die with higher temperature to influence subsequent injection molding operation, in the injection molding operation process, when the upper die 4 and the lower die 5 are clamped, the convex block 4a extrudes the pressing plate 7a, the torsion spring at the joint of the lower die 5 and the rotating roller 7 starts to be stressed, the rotating roller 7 starts to store energy, the pointed cone 7b overturns upwards along with the rotating roller 7, when the pointed cone 7b contacts with the cutting plate 8, the pointed cone 7b is positioned below the cutting plate 8, the pointed cone 7b pushes out the cutting plate 8, at the moment, the upper die 4 and the lower die 5 are not filled with injection molding materials, the injection molding is not influenced, the reset spring 8a connected between the lower die 5 and the cutting plate 8 starts to be compressed, the pointed cone 7b rotates to be above the cutting plate 8 along with the rotation of the rotating roller 7, the pointed cone 7b loses contact with the cutting plate 8, the reset spring 8a connected between the lower die 5 and the cutting plate 8 drives the cutting plate 8 to restore to the initial position, after the upper die 4 and the lower die 5 are closed, the rotating roller 7 finishes energy storage, when the upper die 4 and the lower die 5 are opened, the convex block 4a and the pressing plate 7a lose contact, the torsion spring at the joint of the lower die 5 and the rotating roller 7 starts to reset, the energy storage of the rotating roller 7 starts to release, in the release process, the pointed cone 7b contacts the cutting plate 8 again, the pointed cone 7b pushes the cutting plate 8 out, the cutting plate 8 compresses the reset spring 8a again, the cutting plate 8 stretches out of the lower die 5 to push the injection molded object, so that the injection molded object is separated from the lower die 5, the injection molded object is not adhered together, and the injection molded object is convenient to be taken away by workers.
Example 2
On the basis of the embodiment 1, as shown in fig. 3-9, a reinforced injection molding system is also included; the upper die 4 and the lower die 5 are jointly provided with a reinforced injection molding system; the reinforced injection molding system comprises a first hollow cylinder 101, an injection tube 102, a first scraping plate 103 and an anti-residual component; four first hollow cylinders 101 are arranged in the lower die 5, and a first round table 101a is arranged on all the first hollow cylinders 101; four injection tubes 102 are arranged on the upper die 4, a spray head 102a is arranged on the injection tubes 102, and a second round table 102b is arranged on the injection tubes 102; each injection tube 102 is rotatably connected with a first scraping plate 103, and a torsion spring is arranged at the joint of the first scraping plate 103 and the injection tube 102; the push rod 3 and the upper die 4 are jointly provided with a residue prevention assembly.
All first cavity cylinder 101 lateral walls all open there is the through-hole, and the through-hole all faces the bed die 5 center, and the through-hole cooperates with shower nozzle 102a for when carrying out the operation of moulding plastics, mould plastics through the through-hole simultaneously, reaches better effect of moulding plastics.
The shower nozzle 102a is sliding connection with the injection tube 102, and shower nozzle 102a and injection tube 102 department are equipped with the spring, and when first hollow cylinder 101 through-hole and corresponding shower nozzle 102a accomplish the cooperation, shower nozzle 102a loses the extrusion, and shower nozzle 102a and injection tube 102 department's spring begins to reset, and shower nozzle 102a release is with the remaining injection molding material of through-hole department on the first hollow cylinder 101 to come out, avoids remaining injection molding material to block up first hollow cylinder 101 through-hole, influences subsequent injection molding operation.
The first scraper 103 is provided with a chamfer, so that the cleaning is more thorough when cleaning the injection molding material with wire drawing.
The residue prevention assembly comprises a fixed plate 110, a second hollow cylinder 111, an L-shaped plate 112, a rotary shell 113, a positioning column 114, a conveying pipeline 115 and a second scraper 116; the fixed parts of the two push rods 3 are fixedly connected with a fixed plate 110; a second hollow cylinder 111 is fixedly connected at the injection port of the upper die 4; two L-shaped plates 112 which are symmetrically arranged in a left-right mode are connected to the second hollow cylinder 111 in a sliding mode, and springs for resetting the L-shaped plates 112 are arranged at the joint of the second hollow cylinder 111 and the L-shaped plates 112; a rotary shell 113 is rotatably connected to the second hollow cylinder 111, and a torsion spring is arranged at the joint of the second hollow cylinder 111 and the rotary shell 113; the bottom of the fixed plate 110 is fixedly connected with a positioning column 114, and the positioning column 114 is matched with the rotary shell 113; a conveying pipeline 115 is fixedly connected in the rotary shell 113, and the injection tube 102 is matched with the conveying pipeline 115; a second scraping plate 116 is slidably connected to opposite sides of the two L-shaped plates 112, and a spring is arranged at the connection part of the second scraping plate 116 and the L-shaped plates 112.
For convenience of description in this text, the delivery conduit 115 is replaced with an injection molded port.
In the injection molding operation process of the branched wire harness, screw positions are left in an injection molding area through the first round table 101a and the second round table 102b, the subsequent use is facilitated, when the upper die 4 and the lower die 5 are matched, the injection tube 102 is inserted into the first hollow cylinder 101, when the spray head 102a and the first scraping plate 103 are simultaneously contacted with the first hollow cylinder 101, the spray head 102a is extruded, a spring at the position of the spray head 102a and the injection tube 102 starts to shrink, the first scraping plate 103 is extruded, a torsion spring at the joint of the first scraping plate 103 and the injection tube 102 starts to bear, the first scraping plate 103 is converted into a vertical state to be attached to the inner wall of the first hollow cylinder 101, after the first hollow cylinder 101 through hole is matched with the corresponding spray head 102a, in the injection molding operation, the branched wire harness is injected through an auxiliary injection molding opening of the spray head 102a, so that injection molding materials are injected into the injection molding opening in the injection molding process, the nozzle 102a performs supplementary injection molding on the place where the injection molding material is difficult to fill rapidly, thereby completely filling the area between the bifurcation lines rapidly, achieving better injection molding effect, and because the nozzle 102a is added for injection molding, the material remains at the first hollow cylinder 101 through hole after the injection molding operation is completed, when the subsequent injection molding operation is caused, the residual injection molding material plugs the first hollow cylinder 101 through hole, the subsequent injection molding operation is affected, after the first hollow cylinder 101 through hole is matched with the corresponding nozzle 102a, the nozzle 102a is not extruded, the nozzle 102a and the spring at the injection tube 102 start to reset, the nozzle 102a pushes out the residual injection molding material at the through hole on the first hollow cylinder 101, the residual injection molding material is prevented from plugging the first hollow cylinder 101 through hole, the subsequent injection molding operation is affected, when the upper die 4 and the lower die 5 are opened, in the process that the through holes of the first hollow cylinder 101 are separated from the corresponding spray heads 102a, due to the fact that the temperature of injection molding materials in the injection pipe 102 is high, viscosity of the injection molding materials between the spray heads 102a and the through holes of the first hollow cylinder 101 is increased, when the spray heads 102a and the first hollow cylinder 101 are separated from each other, the injection molding materials between the spray heads 102a and the through holes of the first hollow cylinder 101 are drawn, and at the moment, the material drawn between the spray heads 102a and the through holes of the first hollow cylinder 101 is cut off through the first scraping plate 103 attached to the inner wall of the first hollow cylinder 101, so that the material drawn between the spray heads 102a and the through holes of the first hollow cylinder 101 is prevented from affecting normal injection molding.
When the upper die 4 and the lower die 5 are opened, because the injection molding material is mainly filled between the upper die 4 and the lower die 5 through the injection molding opening, residual injection molding material can appear at the injection molding opening after the injection molding operation is finished due to the large temperature change at the injection molding opening, the strength and quality of the subsequent injection molding are affected, the residual injection molding material is mostly adhered to the injection molding opening in a whole, at the moment, the residual injection molding material stays at the bottom surface of the rotary shell 113, when the push rod 3 is retracted to drive the upper die 4 to the initial position, at the moment, the fixed plate 110, the second hollow cylinder 111, the L-shaped plate 112, the rotary shell 113, the positioning column 114, the conveying pipeline 115 and the second scraping plate 116 are in the initial state shown in fig. 6-8, the push rod 3 is retracted to drive the second hollow cylinder 111, the L-shaped plate 112, the rotary shell 113, the positioning column 114, the conveying pipeline 115 and the second scraping plate 116 to move upwards by the designated distance, at this time, the bottom surface of the L-shaped plate 112 is flush with the bottom surface of the rotating shell 113, the second scraping plate 116 is blocked by the rotating shell 113, at this time, the spring at the joint of the second scraping plate 116 and the L-shaped plate 112 is in a pressed state, during the retracting process of the push rod 3, the L-shaped plate 112 is firstly contacted with the fixed plate 110, after the L-shaped plate 112 is pushed out, the L-shaped plate 112 pushes the injection molding material remained at the bottom surface of the rotating shell 113, the injection molding material remained at the bottom surface of the rotating shell 113 begins to loose, the spring at the joint of the second scraping plate 116 and the L-shaped plate 112 drives the second scraping plate 116 to push out towards the center of the second hollow cylinder 111, the second scraping plate 116 cuts off the injection molding material remained at the bottom surface of the rotating shell 113, at this time, the L-shaped plate 112 and the second scraping plate 116 are simultaneously attached to the bottom surface of the rotating shell 113, the positioning column 114 pushes the rotating shell 113 while the L-shaped plate 112 is pushed out, the rotation shell 113 rotates clockwise from the overlook angle, through the rotation of rotation shell 113 for second scraper blade 116 can be better will stay in the remaining injection molding material excision of rotation shell 113 bottom surface, avoids the injection molding mouth department can appear remaining injection molding material, influences intensity and quality of follow-up moulding plastics.
Example 3
On the basis of the embodiment 2, as shown in fig. 3, 4, 10 and 12, a stretching system is further included; a stretching system is arranged on the processing platform 1; the stretching system comprises a fixing frame 201 and a straightening component; a fixed frame 201 is fixedly connected to the right side of the lower die 5, and a first friction layer 201a is arranged in the fixed frame 201; two straightening assemblies are mounted on the processing platform 1 and are positioned on the left side of the lower die 5.
The straightening component comprises a mounting bracket 202 and an electric swivel 203; a mounting bracket 202 is fixedly connected to the processing platform 1; two electric swivel 203 are rotatably connected to the mounting bracket 202.
The device also comprises a limiting ring 204 and a positioning plate 205; each mounting bracket 202 is rotatably connected with two limiting rings 204, a second friction layer 204a is arranged in each limiting ring 204, two buckling pieces 203a are arranged on one side, facing the adjacent limiting rings 204, of each electric rotating ring 203, each buckling piece 203a is deformable, buckling heads 204b are arranged on one side, facing the adjacent electric rotating ring 203, of each limiting ring 204, all limiting rings 204 are matched with the corresponding electric rotating ring 203, and each limiting ring 204 and each electric rotating ring 203 are connected through the corresponding buckling heads 204b and the corresponding buckling pieces 203 a; four positioning plates 205 are fixedly connected to the processing platform 1 respectively, and the four positioning plates 205 are matched with the corresponding limiting rings 204.
The first friction layer 201a and the second friction layer 204a are respectively provided with a vertical bar, so that the resistance of the split wire harness in the upward demolding process is not increased while the main wire of the split wire harness is fixed.
The connection strength of the connection buckle of the limiting ring 204 and the electric swivel 203 can only straighten the branch wire harness auxiliary line, and when the branch wire harness auxiliary line is straightened, and the limiting ring 204 and the electric swivel 203 continue to pull the branch wire harness auxiliary line, the connection buckle between the limiting ring 204 and the electric swivel 203 can be disconnected.
Because the auxiliary line position of the forked wire harness is not straightened when the injection molding operation is carried out, after the injection molding operation is finished, the injection molding material of the injection molding area of the forked wire harness is unevenly distributed, in the subsequent use process, when the injection molding area of the forked wire harness is damaged, the parts with less injection molding material are easy to break, the whole forked wire harness is influenced, the forked wire harness can be continuously used after repairing, in order to avoid the situation, the situation can not occur when the worker carries out the injection molding operation after finishing the auxiliary line of the forked wire harness before carrying out the injection molding operation, but the finishing time of the auxiliary line of the forked wire harness is required, the injection molding time of each forked wire harness is greatly increased, the production efficiency is reduced linearly, the forked wire harness needing to be molded is processed through the stretching system, firstly, the forked wire harness main line is pressed in the fixing frame 201 by the worker, after the branch harness auxiliary line is directly pressed into the electric swivel 203 and the limiting ring 204, the second friction layer 204a fixes the branch harness auxiliary line, injection molding operation is started, meanwhile, the electric swivel 203 overturns leftwards to stretch the branch harness auxiliary line, the limiting ring 204 overturns, when all the branch harness auxiliary lines are pulled with uniform force, as the bending degree of the branch harness auxiliary line is different, part of the branch harness auxiliary lines can be pulled, all the branch harness auxiliary lines need to be singly straightened, when the electric swivel 203 stretches the branch harness auxiliary line, the first friction layer 201a fixes the branch harness main line, the injection molding area is prevented from being deviated, when the limiting ring 204 and the electric swivel 203 straighten the branch harness auxiliary line, the electric swivel 203 continues to overturn leftwards, because all the branch harness auxiliary lines are straightened and can not be stretched continuously at the moment, then, the split wire harness auxiliary line limits the limiting ring 204 through the second friction layer 204a, so that the limiting ring 204 cannot continue to overturn along with the electric rotating ring 203, because the buckle head 204b is extruded between the two buckle pieces 203a by utilizing the deformable function of the buckle piece 203a, when the overturning force of the electric rotating ring 203 exceeds the buckling resistance between the buckle piece 203a and the buckle head 204b, the buckle piece 203a bends towards the direction away from the buckle head 204b and then is separated from the buckle head 204b, the buckle connected between the limiting ring 204 and the electric rotating ring 203 is disconnected, the electric rotating ring 203 stops overturning, the limiting ring 204 stays on the split wire harness auxiliary line, after the injection molding treatment is completed, the electric rotating ring 203 overturns rightwards, the limiting ring 204 is pushed by the electric rotating ring 203 to overturned together, if the limiting ring 204 is not blocked, the buckle piece 203a always pushes the buckle head 204b to move so as not to be buckled with the buckle head 204b, after the limiting ring 204 is blocked from continuing to overturned rightwards, the electric rotating ring 203 continues to overturned, the bending piece 203a on the electric rotating ring 203 is repeatedly and the electric rotating ring 203 is deformed again, and then the injection molding operation is stopped, and the limiting ring 203 is continuously overturned.
Although embodiments of the present application have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the application, the scope of which is defined in the claims and their equivalents.

Claims (5)

1. The wire harness insulating layer injection molding device comprises a processing platform (1), a mounting rack (2), a push rod (3), an upper die (4) and a lower die (5); the processing platform (1) is fixedly connected with a mounting frame (2); the mounting frame (2) is fixedly connected with two push rods (3) for opening and closing the die; the telescopic parts of the two push rods (3) are jointly provided with an upper die (4), and the upper die (4) is provided with two convex blocks (4 a); a lower die (5) is arranged on the processing platform (1), a storage groove (5 a) is formed in the lower die (5), and the lower die (5) is matched with the upper die (4); the method is characterized in that: the device also comprises a water conveying pipeline (6), a rotating roller (7) and a cutting plate (8); the water delivery pipelines (6) are respectively arranged in the upper die (4) and the lower die (5), an outlet and an inlet are arranged on the water delivery pipelines (6), the outlet of the water delivery pipeline (6) in the upper die (4) is communicated with the inlet of the water delivery pipeline (6) in the lower die (5), and the inlet of the water delivery pipeline (6) in the upper die (4) and the outlet of the water delivery pipeline (6) in the lower die (5) are communicated with an external pump, so that water in the two water delivery pipelines (6) is circulated; the lower die (5) is rotationally connected with two rotating rollers (7) which are symmetrical in front-back, torsion springs are arranged at the joints of the lower die (5) and the rotating rollers (7), a pressing plate (7 a) is arranged on each of the two rotating rollers (7), the pressing plate (7 a) is positioned in the storage groove (5 a), the pressing plate (7 a) is matched with the convex blocks (4 a), and sharp cones (7 b) are arranged on the two rotating rollers (7); the lower die (5) is internally connected with two cutting plates (8) which are in front-back symmetry and used for pushing injection molded objects, the lower die (5) is internally connected with a reset spring (8 a), the other end of the reset spring (8 a) is fixed on the cutting plates (8), the expansion direction of the reset spring (8 a) is the same as the sliding track direction of the cutting plates (8), the cutting plates (8) are attached to the surface of an injection molding part of the lower die (5), and the cutting plates (8) are matched with the sharp cone (7 b);
the reinforced injection molding system is also included; the upper die (4) and the lower die (5) are jointly provided with a reinforced injection molding system; the reinforced injection molding system comprises a first hollow cylinder (101), an injection tube (102), a first scraping plate (103) and an anti-residual component; a plurality of first hollow cylinders (101) are arranged in the lower die (5), and first round tables (101 a) for reserving screw hole sites are arranged on all the first hollow cylinders (101); a plurality of injection pipes (102) which are used for being matched with the first hollow cylinder (101) are arranged on the upper die (4), a spray head (102 a) is arranged on the injection pipes (102), and a second round table (102 b) is arranged on the injection pipes (102); each injection tube (102) is rotatably connected with a first scraping plate (103), and a torsion spring is arranged at the joint of the first scraping plate (103) and the injection tube (102); the push rod (3) and the upper die (4) are jointly provided with an anti-residual component;
all the side walls of the first hollow cylinders (101) are provided with through holes, the through holes face the center of the lower die (5), and the through holes are matched with the spray heads (102 a);
the spray head (102 a) is in sliding connection with the injection tube (102), and a spring is arranged at the positions of the spray head (102 a) and the injection tube (102);
the first scraping plate (103) is provided with a chamfer;
the residue prevention assembly comprises a fixed plate (110), a second hollow cylinder (111), an L-shaped plate (112), a rotary shell (113), a positioning column (114), a conveying pipeline (115) and a second scraping plate (116); the fixing parts of the two push rods (3) are fixedly connected with a fixing plate (110) together; a second hollow cylinder (111) is fixedly connected at the injection molding opening of the upper die (4); two L-shaped plates (112) are arranged on the second hollow cylinder (111), and a spring for resetting the L-shaped plates (112) is arranged at the joint of the second hollow cylinder (111) and the L-shaped plates (112); a rotary shell (113) is rotationally connected to the second hollow cylinder (111), and a torsion spring is arranged at the joint of the second hollow cylinder (111) and the rotary shell (113); a positioning column (114) for pushing the rotating shell (113) is fixedly connected to the bottom of the fixed plate (110), and the positioning column (114) is matched with the rotating shell (113); a conveying pipeline (115) for replacing injection molding of an injection port is fixedly connected in the rotary shell (113), and the injection pipe (102) is matched with the conveying pipeline (115); the opposite sides of the two L-shaped plates (112) are respectively connected with a second scraping plate (116) for cutting off residual injection molding materials in a sliding manner, and a spring is arranged at the joint of the second scraping plate (116) and the L-shaped plates (112).
2. A wire harness insulation layer injection molding apparatus as claimed in claim 1, wherein: the device also comprises a stretching system; a stretching system is arranged on the processing platform (1); the stretching system comprises a fixing frame (201) and a straightening component; a fixing frame (201) for fixing the wire harness is fixedly connected to the right side of the lower die (5), and a first friction layer (201 a) for enhancing friction is arranged in the fixing frame (201); two straightening assemblies are arranged on the processing platform (1), and the straightening assemblies are positioned on the left side of the lower die (5).
3. A wire harness insulation layer injection molding apparatus as claimed in claim 2, wherein: the straightening component comprises a mounting bracket (202) and an electric swivel (203); a mounting bracket (202) is fixedly connected on the processing platform (1); the mounting bracket (202) is rotatably connected with two electric swivel rings (203) for pulling the wire harness.
4. A wire harness insulation layer injection molding apparatus as claimed in claim 3, wherein: the device also comprises a limiting ring (204) and a positioning plate (205); each mounting bracket (202) is rotatably connected with two limiting rings (204), a second friction layer (204 a) is arranged in each limiting ring (204), two clamping pieces (203 a) are arranged on one side, facing the adjacent limiting rings (204), of each electric rotating ring (203), each clamping piece (203 a) is deformable, a clamping head (204 b) is arranged on one side, facing the adjacent electric rotating ring (203), of each limiting ring (204), all limiting rings (204) are matched with the corresponding electric rotating ring (203) for pulling the branch harness auxiliary line, and the limiting rings (204) are connected with the corresponding electric rotating rings (203) through the clamping heads (204 b) and the clamping pieces (203 a); four positioning plates (205) are fixedly connected to the processing platform (1) respectively, and the four positioning plates (205) are matched with the corresponding limiting rings (204).
5. A wire harness insulation layer injection molding apparatus as claimed in claim 4, wherein: the first friction layer (201 a) and the second friction layer (204 a) are respectively provided with a vertical bar.
CN202310808526.1A 2023-07-04 2023-07-04 Wire harness insulating layer injection molding device Active CN116533443B (en)

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Application Number Priority Date Filing Date Title
CN202310808526.1A CN116533443B (en) 2023-07-04 2023-07-04 Wire harness insulating layer injection molding device

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Application Number Priority Date Filing Date Title
CN202310808526.1A CN116533443B (en) 2023-07-04 2023-07-04 Wire harness insulating layer injection molding device

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CN116533443B true CN116533443B (en) 2023-09-08

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210211186U (en) * 2019-06-11 2020-03-31 上海途盛汽车零部件有限公司 Quick cooling device for injection mold
CN213593513U (en) * 2020-09-29 2021-07-02 深圳市振鸿电子技术有限公司 Temperature controller shell injection mold
CN115805697A (en) * 2022-12-20 2023-03-17 昆山精创模具有限公司 High-efficient cooling water route of auto-parts and mould
CN218985660U (en) * 2022-12-01 2023-05-09 东莞志盛塑胶制品有限公司 Plastic mold cooling mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210211186U (en) * 2019-06-11 2020-03-31 上海途盛汽车零部件有限公司 Quick cooling device for injection mold
CN213593513U (en) * 2020-09-29 2021-07-02 深圳市振鸿电子技术有限公司 Temperature controller shell injection mold
CN218985660U (en) * 2022-12-01 2023-05-09 东莞志盛塑胶制品有限公司 Plastic mold cooling mechanism
CN115805697A (en) * 2022-12-20 2023-03-17 昆山精创模具有限公司 High-efficient cooling water route of auto-parts and mould

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