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CN118238352A - Injection mold structure and process of multi-station multi-layer car light optical perspective mirror with in-mold core - Google Patents

Injection mold structure and process of multi-station multi-layer car light optical perspective mirror with in-mold core Download PDF

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Publication number
CN118238352A
CN118238352A CN202410278574.9A CN202410278574A CN118238352A CN 118238352 A CN118238352 A CN 118238352A CN 202410278574 A CN202410278574 A CN 202410278574A CN 118238352 A CN118238352 A CN 118238352A
Authority
CN
China
Prior art keywords
die
positioning
movable
fixed
mould
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202410278574.9A
Other languages
Chinese (zh)
Inventor
杨邦伟
黄红伟
倪坚
张小华
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.)
Hangzhou Kaimei Mold Co ltd
Original Assignee
Hangzhou Kaimei Mold Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hangzhou Kaimei Mold Co ltd filed Critical Hangzhou Kaimei Mold Co ltd
Priority to CN202410278574.9A priority Critical patent/CN118238352A/en
Publication of CN118238352A publication Critical patent/CN118238352A/en
Pending legal-status Critical Current

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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
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • 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
    • B29C45/03Injection moulding apparatus
    • B29C45/04Injection moulding apparatus using movable moulds or mould halves
    • B29C45/06Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction
    • B29C45/062Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction carrying mould halves co-operating with fixed mould halves
    • 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
    • B29C45/16Making multilayered or multicoloured articles
    • B29C45/1615The materials being injected at different moulding stations
    • 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
    • B29C45/16Making multilayered or multicoloured articles
    • B29C45/1615The materials being injected at different moulding stations
    • B29C45/162The materials being injected at different moulding stations using means, e.g. mould parts, for transferring an injected part between moulding stations
    • 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
    • B29C45/2602Mould construction elements
    • B29C45/2606Guiding or centering means
    • 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
    • B29C45/42Removing or ejecting moulded articles using means movable from outside the mould between mould parts, e.g. robots
    • 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
    • B29C45/03Injection moulding apparatus
    • B29C45/04Injection moulding apparatus using movable moulds or mould halves
    • B29C45/06Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction
    • B29C2045/067Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction one mould being openable during clamping of the other moulds
    • 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
    • B29C2045/2697Deformed geometry of the cavity
    • 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
    • B29L2011/00Optical elements, e.g. lenses, prisms
    • B29L2011/0016Lenses

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Robotics (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention discloses an injection mold structure of an in-mold core multi-station multilayer car lamp optical perspective mirror, which comprises: the movable mould and the fixed mould form an injection cavity of the lens, the movable mould and the fixed mould are arranged in a plurality, the movable mould and the fixed mould can be matched, the movable mould and the different fixed moulds are combined to form injection cavities with different structures, and an injection port is formed in the fixed mould and is communicated with the injection cavity; the guide structure is configured on the contact surface of the movable die and the fixed die, the guide structure limits the position of the movable die, the movable die can be correspondingly matched with the fixed die through movement of the guide structure, a positioning structure is arranged between the movable die and the fixed die, and the positioning structure is matched with the fixed die to position the movable die. The invention can continuously carry out injection molding on the lens in the using process, and can not interfere the injection molding of the lens by the mould when the manipulator grabs the lens after the injection molding is finished, thereby greatly improving the injection molding efficiency of the lens.

Description

Injection mold structure and process of multi-station multi-layer car light optical perspective mirror with in-mold core
Technical Field
The invention relates to the technical field of injection molding of multilayer car light optical perspective mirrors, in particular to an injection mold structure and a process of an in-mold core multi-station multilayer car light optical perspective mirror.
Background
A multilayer automotive light optic lens is a technology related to automotive lighting systems comprising: this technology has different applications in different fields, including X-ray diffraction and automotive headlights; in automotive headlamps, multilayer mirror technology is commonly used in lens modules to improve the focusing and distribution of the light beam; the design trend of automotive headlamps tends to flatten, and lens modules become thinner and thinner, and the appearance is finer; the automobile front headlight adopts a thinner and finer lens module to realize better beam control and distribution; the low beam and high beam lens modules are evolving continuously to adapt to new design trends and technical requirements.
The multi-layer lens is an optical element, which is composed of a plurality of lens layers in a laminated way, and can further optimize the propagation path and the phase relation of light and realize finer light field adjusting effect.
In practice, many factors are considered in the design and manufacture of a multilayer lens, including the shape, size, material, refractive index, etc. of the lens. These factors can affect the optical performance of the lens, including focusing effects, dispersion, aberrations, and the like. Therefore, designing and manufacturing a multilayer lens requires accurate optical calculations and a fine manufacturing process.
Chinese patent publication No. CN213198615U discloses a polychrome car light injection mold, and this application includes that a plurality of cover half is connected on the carousel and the carousel can drive a plurality of cover half and rotate, and every movable mould homoenergetic is paired the compound die with corresponding cover half and is formed into the die cavity of moulding plastics, just can accomplish the injection molding of multiple colour product in a set of injection mold, makes product production simple and convenient, has improved the efficiency of production.
When the injection mold is used for injection molding of the multilayer car light optical lens, the corresponding position of the lens inside the mold is changed by rotating the mold, after injection molding of the first layer lens is completed, the injection molding opening is adjusted by rotating the mold, and injection molding of the second layer lens is performed, so that injection molding of the multilayer car light optical lens is completed.
When carrying out double shot molding, the position of the lens of moulding plastics is changed through the mode of rotatory mould, but because in the in-process of moulding plastics, the mould motion is opened, and the lens that has formed is taken out by the manipulator, and because the mould is opened each time and just can carry out the compound die injection molding after need waiting the manipulator to get rid of the lens, consequently, is unfavorable for carrying out the injection molding of lens with high efficiency.
Disclosure of Invention
The invention aims to provide an injection mold structure and a process of an in-mold core multi-station multilayer car light optical perspective mirror, wherein the structure of a movable mold and a fixed mold is changed, when injection molding is carried out, the movable mold drives a lens to move and is combined with different fixed molds, the injection molding structure of the lens is limited by utilizing injection molding cavities with different shapes, the continuous movement of the movable mold can continuously output the lens, and when a mechanical arm grabs the lens, the injection molding of other lenses is not interfered, so that the injection molding efficiency of the lens is greatly improved.
In order to achieve the above purpose, the invention is realized by the following technical scheme: an injection mold structure of an in-mold core multi-station multilayer car lamp optical perspective mirror, comprising:
The movable mould and the fixed mould form an injection cavity of the lens, the movable mould and the fixed mould are arranged in a plurality, the movable mould and the fixed mould can be matched, the movable mould and the different fixed moulds are combined to form injection cavities with different structures, and an injection port is formed in the fixed mould and is communicated with the injection cavity;
the guide structure is configured on the contact surface of the movable die and the fixed die, the guide structure limits the position of the brake die, the movable die can be correspondingly matched with the fixed die through the movement of the guide structure, a positioning structure is arranged between the movable die and the fixed die, and the positioning structure is matched with the fixed die to position the movable die;
The telescopic piece is arranged in the fixed die and connected with the positioning structure, the positioning structure controls the telescopic piece to slide into the movable die when positioning the movable die, the telescopic piece comprises a molding block forming an injection cavity, the molding block extends into the movable die and contacts with the inner wall of the movable die, and the injection port penetrates through the molding block;
The movable mould and the fixed mould are evenly spaced in an annular mode, the guiding structure limits the fixed mould to make circumferential rotation, the positioning structure comprises positioning columns arranged in the movable mould, the positioning columns are arranged in multiple points, the positioning columns at different positions correspond to the positioning structures in different fixed moulds, and the movable mould is internally provided with electromagnetic assemblies to control the positioning columns.
In one or more embodiments of the present invention, the guide structure includes:
The guide rail is embedded in the fixed die, and the guide rail, the movable die and the center shaft of the fixed die are all coincident;
A pressing block which extends into the guide rail and is matched with the guide rail, wherein two sides of the pressing block are obliquely arranged, and a rotatable ball is embedded in one side of the pressing block facing the inner wall of the guide rail and is contacted with the inner wall of the guide rail;
One end of the pressing block extending to the inside of the movable die is provided with an elastic piece, the elastic piece forms a support for the pressing block, and the pressing block enters the guide rail to extrude the elastic piece.
In one or more embodiments of the present invention, the guide structure further includes:
The ejector rod is positioned in the movable mould, and the position of the ejector rod, which is close to the pressing block, is connected with the pressing block and moves along with the pressing block;
The ejector rack is movably arranged inside the movable mould, one surface of the ejector rack is a part of the injection molding cavity, magnetic pieces are arranged between the ejector rack and the ejector rods and are respectively fixed on the outer walls of the ejector rods and the ejector rack, the magnetic pieces are mutually magnetically attracted, the ejector rods form limiting on the ejector rack when the pressing block is positioned on the inner side of the guide rail, and the ejector rack is in a limited state and the injection molding cavity is in an injection molding cavity in an injection molding state.
In one or more embodiments of the present invention, the positioning structure further includes:
the positioning holes are formed in the fixed die and are matched with the positioning columns, one side, facing the positioning columns, of each positioning column is provided with a chamfer, the positions of the positioning holes formed in the adjacent fixed die are staggered, and the movable die is matched with the positioning columns of the positioning holes formed in the fixed die after being matched with the fixed die;
The electromagnetic assembly forms a support for the positioning column, one end of the positioning column, which is positioned in the movable die, is provided with a magnetic plate, and the magnetic plate is matched with the electromagnetic assembly.
In one or more embodiments of the present invention, the positioning structure further includes:
the positioning plate is rotatably arranged in the movable die, the positioning plate is arranged in the side surface of the movable die, the middle part of the positioning plate is provided with a wafer, the wafer is rotatably arranged in the movable die, and two ends of the wafer are respectively provided with an electric telescopic rod for controlling the rotation angle of the wafer;
The clamping groove is formed in the inner side of the wafer, the locating plate and the telescopic end of the electric telescopic rod extend to the inside of the clamping groove, and the wafer rotates to control the swinging angle of the locating plate through the clamping groove.
In one or more embodiments of the present invention, the positioning structure further includes:
The inserted bar is arranged inside the positioning hole, the inserted bar is in contact with the positioning column, the positioning column pushes the inserted bar to change the position of the inserted bar, the hydraulic cavity is formed in one end, deviating from the positioning column, of the inserted bar, and the inserted bar is inserted into the hydraulic cavity to form extrusion on the hydraulic cavity.
In one or more embodiments of the present invention, the expansion member further includes:
The pushing frame is connected with the profile block and pushes the profile block to move, and the other end of the pushing frame, which is away from the profile block, extends to the inside of the hydraulic cavity;
the limiting frame is positioned on one side of the pushing frame and supports the pushing frame, a hydraulic telescopic rod is arranged on one side of the pushing frame inside the limiting frame, and the hydraulic telescopic rod controls the position of the limiting frame.
In one or more embodiments of the present invention, a pressure sensor is disposed inside the telescopic end of the hydraulic telescopic rod, and the detection end of the pressure sensor is connected to the compression pressure of the limiting frame.
The invention also provides an injection molding process of the multi-station multi-layer car light optical perspective mirror with the in-mold core, which is used for the injection mold structure and comprises the following steps:
step one, connecting an injection molding machine with an injection molding port, and debugging the melting temperature and the outlet temperature of the injection molding machine;
Step two, driving equipment is connected with a movable die and drives the movable die to rotate, the movable die is connected with a fixed die through a guide structure, and the movable die is combined with the fixed die to complete injection molding of the lens;
step three, after the lens is cooled, a positioning structure is started, the movable die rotates to one side of the lower fixed die, the positioning structure is connected with the movable die and the fixed die again, and the next layer of lens injection molding is carried out;
And fourthly, moving the movable mould to a picking position, ejecting the lens by the guide structure, and picking the lens by the mechanical arm to pick the lens out.
In one or more embodiments of the present invention, the movable mold position is restricted by the driving apparatus, and the stationary mold is in a stationary state.
Through the technical scheme, the invention has the following beneficial effects:
1. The invention can continuously carry out injection molding on the lens in the using process, when the mechanical arm is used for grabbing the lens after injection molding, the injection molding of the lens by the mold is not interfered, the injection molding efficiency of the lens is greatly improved, and when the movable mold moves, the movable mold is not separated from contact with the fixed mold, so that the step of combining the movable mold and the fixed mold after the movable mold is separated from the fixed mold and the position is adjusted again is avoided.
2. In order to reduce the step that the fixed die and the movable die are combined again after being separated from each other, the lens is fixed in the movable die, and the fixed die extends into the movable die when injection molding is carried out, so that an injection molding cavity is formed, the structure of the lens is limited by the injection molding cavity, the structural stability of the lens is ensured, and after injection molding of the lens is completed, the action of the fixed die is separated from the movable die, so that the movable die can move.
3. The contact position of cover half and movable mould sets up the guide structure that supplies the movable mould motion, and when using, the movable mould motion can change the position and combine with different cover half, and carries out the combination location of movable mould and cover half according to the position of guide structure, guarantees the centering accuracy of cover half and movable mould, ensures the precision of multilayer lens combination position, reduces the unnecessary material in edge.
4. The cover half is connected with the pipe of moulding plastics, does not limit the motion of braking mould, and the movable mould is inside to be set up the regulating part that can pull different cover half, and when using, the regulating part corresponds with different cover half structures to the cover half of control different positions is ejecting, carries out the control of cover half according to the position of movable mould, and need not to carry out the initiative control of movable mould and cover half.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic diagram of a movable mold structure according to the present invention;
FIG. 3 is a bottom plan view of the stationary mold of the present invention;
FIG. 4 is a schematic view of a guide rail and a pressing block according to the present invention;
FIG. 5 is an exploded view of the press block and rail structure of the present invention;
FIG. 6 is a schematic diagram of a movable mold structure according to the present invention;
FIG. 7 is a cross-sectional view of a movable mold structure according to the present invention;
FIG. 8 is a schematic diagram of the internal structure of the movable mold according to the present invention;
FIG. 9 is a schematic view of a positioning post and positioning hole fitting structure according to the present invention;
FIG. 10 is a schematic view of the electromagnetic assembly and positioning column according to the present invention;
FIG. 11 is a schematic view of a wafer structure according to the present invention;
FIG. 12 is a cross-sectional view of a stationary mold of the present invention;
Fig. 13 is a schematic view of the internal structure of the stationary mold of the present invention.
In the figure: a movable die 1, a fixed die 2, a guide structure 3, a positioning structure 4 and a telescopic piece 5;
301 guide rail, 302 press block, 303 ball, 304 elastic piece, 305 ejector rod, 306 ejector rack, 307 magnetic piece;
401 positioning columns, 402 positioning holes, 403 electromagnetic assemblies, 404 positioning plates, 405 wafers, 406 electric telescopic rods, 407 clamping grooves, 408 inserting rods and 409 hydraulic cavities;
the device comprises a 501 type block, a 502 pushing frame, a 503 limiting frame, a 504 hydraulic telescopic rod and a 505 pressure sensor.
Detailed Description
Various embodiments of the invention are disclosed in the accompanying drawings, and for purposes of explanation, numerous practical details are set forth in the following description. However, it should be understood that these practical details are not to be taken as limiting the invention. That is, in some embodiments of the invention, these practical details are unnecessary. And features of different embodiments may be interactively applied, if implementation is possible.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have their ordinary meaning as understood by one of ordinary skill in the art. Furthermore, the definitions of the words and phrases used herein should be understood and interpreted to have a meaning consistent with the understanding of the relevant art and technology. These terms are not to be construed as idealized or overly formal meanings unless expressly so defined.
The invention provides an injection mold structure of an in-mold core multi-station multilayer car light optical perspective mirror, which changes the mold structure, controls the action steps of a mold in the injection molding process of a lens and improves the injection molding efficiency of the lens.
Referring to fig. 1-3, in one embodiment, a mold structure includes:
The movable mould 1 and the fixed mould 2 form an injection cavity of the lens, the movable mould 1 and the fixed mould 2 are arranged in a plurality, the movable mould 1 and the fixed mould 2 can be matched, the movable mould 1 and the different fixed moulds 2 are combined to form injection cavities with different structures, and an injection port is formed in the fixed mould 2 and communicated with the injection cavity;
The guide structure 3 is configured on the contact surface of the movable die 1 and the fixed die 2, the guide structure 3 limits the position of the movable die 1, the movable die 1 can be correspondingly matched with the fixed die 2 through the movement of the guide structure 3, a positioning structure 4 is arranged between the movable die 1 and the fixed die 2, and the positioning structure 4 is matched with the fixed die 2 to position the movable die 1;
The telescopic piece 5 is arranged in the fixed die 2, the telescopic piece 5 is connected with the positioning structure 4, the positioning structure 4 is used for positioning the movable die 1, the telescopic piece 5 is controlled to slide into the movable die 1, the telescopic piece 5 comprises a block 501 forming an injection cavity, the block 501 extends into the movable die 1 and is contacted with the inner wall of the movable die 1, and the injection port penetrates through the block 501;
The movable die 1 and the fixed die 2 are evenly arranged at intervals in an annular mode, the fixed die 2 is limited by the guide structure 3 to make circumferential rotation, the positioning structure 4 comprises positioning columns 401 arranged inside the movable die 1, the positioning columns 401 are arranged in multiple points, the positioning columns 401 at different positions correspond to the positioning structures 4 inside different fixed dies 2, and the electromagnetic assemblies 403 are arranged inside the movable die 1 to control the positioning columns 401.
In this embodiment, fig. 1 discloses the number of movable molds 1 and fixed molds 2 and the setting positions of fixed molds 2 and movable molds 1, the movable molds 1 and fixed molds 2 are multiple, so that the movable molds 1 can make full-circle movement when being matched with the fixed molds 2, the movable molds 1 can be ensured to be matched with different fixed molds 2 circularly, the number of the movable molds 1 is larger than that of the fixed molds 2, after injection molding is completed, the movable molds 1 do not move to be matched with the fixed molds 2, the movable molds 1 are in a picking position when being in the position, namely, a manipulator for picking a piece is arranged at the position, and lenses inside the movable molds 1 can be clamped out by using the manipulator.
Fig. 2 discloses the internal structure of the movable mold 1, and in fig. 2, it can be seen that the structures of all the movable molds 1 are consistent, and since the movable molds 1 need to make full-circle movement to be matched with different fixed molds 2, the setting of the positioning structure 4 needs to ensure stable matching of each movable mold 1 and the fixed mold 2.
Fig. 3 discloses a structure that a fixed mold 2 is connected with one surface of a touch mold 1, the number of adjacent fixed molds 2 is related to the number of layers of lenses, the number of adjacent fixed molds 2 is several when the lenses are provided with several layers, the positions of the fixed molds 2 are fixed, the guide structures 3 between the adjacent fixed molds 2 are communicated, and when the movable mold 1 reaches a picking position, the guide structures 3 configured by the fixed molds 2 are separated.
In other embodiments, because the number of adjacent fixed molds 2 is related to the number of layers of the lens, the mold structure provided by the invention can also process lenses with different layers at the same time, and injection molding of lenses with different forms can be completed only by setting different numbers of adjacent fixed molds 2 and configuring different injection molding cavities.
Referring to fig. 4-6, in one embodiment, the guide structure 3 comprises:
the guide rail 301 is embedded in the fixed die 2, and the center shafts of the guide rail 301, the movable die 1 and the fixed die 2 are all coincident;
a pressing block 302 extending into the guide rail 301 and adapted to the guide rail 301, wherein both sides of the pressing block 302 are obliquely arranged, a rotatable ball 303 is embedded in one side of the pressing block 302 facing the inner wall of the guide rail 301, and the ball 303 contacts the inner wall of the guide rail 301;
an elastic piece 304 is arranged at one end of the pressing block 302 extending to the inside of the movable die 1, the elastic piece 304 forms a support for the pressing block 302, and the pressing block 302 enters the guide rail 301 to press the elastic piece 304.
In this embodiment, fig. 4 discloses a meshing structure of the guide rail 301 and the pressing block 302, and since the installation position of the guide rail 301 is related to the adjacent number of the fixed molds 2, the guide rail 301 is located at the workpiece taking position and is in a fracture state, so that the interference to the grabbing of the lens by the manipulator is avoided, and the stability of the grabbing process of the manipulator is ensured.
Fig. 5 discloses an explosion structure of a guide rail 301 and a pressing block 302, wherein both sides of the pressing block 302 are arranged in an inclined shape, and the two sides of the pressing block 302 can enter the guide rail 301 from the inclined surface position during use, so that the pressing block 302 is pressed by the guide rail 301, the position stability of the pressing block 302 is ensured, the pressing block 302 is supported by an elastic piece 304 to change the position of the pressing block 302, in the embodiment, the elastic piece 304 is a spring, in other embodiments, the elastic piece 304 can also be arranged as a hydraulic chamber, and the pressure in the hydraulic chamber is increased when the pressing block 302 is pressed.
Fig. 6 discloses the position of the pressing block 302 out of the guide rail 301, in which the pressing block 302 is supported by the elastic member 304 to move outwards, and the position of the pressing block 302 can change the state to control the movement of the other part of the guide structure 3, thereby controlling the position of the lens so as to grasp the lens.
Referring to fig. 7 and 8, in one embodiment, the guiding structure 3 further comprises:
the ejector rod 305 is positioned in the movable mould 1, and the position of the ejector rod 305 close to the pressing block 302 is connected with the pressing block 302 and moves along with the pressing block 302;
The roof-rack 306, the activity sets up in movable mould 1 inside, and roof-rack 306 one side is the part in injection molding chamber, sets up the magnetic part 307 between roof-rack 306 and the roof-rack 305, and the magnetic part 307 is fixed in roof-rack 305 and roof-rack 306 outer wall respectively, and mutually magnetic attraction between the magnetic part 307, and roof-rack 306 is spacing to roof-rack 306 when pressing the ejector rod 305 when the piece 302 is located the guide rail 301 inboard, and roof-rack 306 is by spacing state, and the injection molding chamber is the injection molding chamber under the state of moulding plastics.
In this embodiment, fig. 7 is a half-section structure of the movable mold 1, the top frame 306 extends from a plurality of positions to the injection cavity position, and the top frame 306 is located at the lens gate and the runner position, so that when the top frame 306 moves outwards, the lens position is not stressed, the position of the lens is prevented from being damaged, and the top frame 306 pushes the water outlet position outwards to ensure the stability of the robot hand grabbing the lens position.
Fig. 8 is a schematic diagram of an internal guiding structure 3 of the movable mold 1, where the ejector rod 305 is connected with the pressing block 302 and moves synchronously with the pressing block 302, and since the pressing block 302 is supported by the elastic member 304, the guide rail 301 limits the pressing block 302, in this state, the top frame 306 is in an injection molding state, after the pressing block 302 is separated from the guide rail 301, the elastic member 304 supports the pressing block 302 outwards, so that the pressing block 302 moves outwards, and the magnetic member 307 drives the top frame 306 to eject outwards, so that the injection molded lens is ejected outwards by the top frame 306.
Referring to fig. 9-10, in one embodiment, the positioning structure 4 further comprises:
the positioning holes 402 are formed in the fixed die 2, the positioning holes 402 are matched with the positioning columns 401, one side, facing the positioning columns 401, of each positioning column 401 is provided with a chamfer, the positions of the positioning holes 402 formed in the adjacent fixed die 2 are staggered, and the movable die 1 is matched with the fixed die 2 and then matched with the positioning columns 401 of the positioning holes 402 formed in the fixed die 2;
The electromagnetic assembly 403 forms a support for the positioning column 401, and one end of the positioning column 401 located inside the movable die 1 is a magnetic plate, and the magnetic plate is matched with the electromagnetic assembly 403.
In this embodiment, fig. 9 is a positioning column 401 and positioning hole 402 adapting structure, and by adapting different positioning columns 401 and positioning holes 402, when in use, different positioning can be performed according to different fixed molds 2, so as to ensure the stability in the injection molding process.
Fig. 10 is a schematic structural diagram of an electromagnetic assembly 403, a magnetic plate and a positioning column 401, wherein the positioning column 401 is provided with a plurality of electromagnets, and the electromagnetic assembly 403 is an electromagnet, so that the positioning column 401 is ejected outwards and extends into the positioning hole 402 when the electromagnetic assembly is used, and the positioning column 401 which is not matched with the fixed mold 2 does not extend outwards after the electromagnet is ejected outwards.
Referring to fig. 11, in one embodiment, the positioning structure 4 further comprises:
The positioning plate 404 is rotatably arranged in the movable die 1, the positioning plate 404 is arranged in the side surface of the movable die 1, the middle part of the positioning plate 404 is provided with a circular disc 405, the circular disc 405 is rotatably arranged in the movable die 1, and two ends of the circular disc 405 are respectively provided with an electric telescopic rod 406 for controlling the rotation angle of the circular disc 405;
The clamping groove 407 is formed in the inner side of the wafer 405, the telescopic ends of the positioning plate 404 and the electric telescopic rod 406 extend into the clamping groove 407, and the wafer 405 rotates to control the swinging angle of the positioning plate 404 through the clamping groove 407.
In this embodiment, fig. 11 shows a structure of a positioning plate 404, a disc 405 and an electric telescopic rod 406, wherein one end of the electric telescopic rod 406 is telescopic towards the disc 405 and extends into the clamping slot 407, the position of the disc 405 is changed by the telescopic action of the electric telescopic rod 406, and the disc 405 can control the positioning plate 404 to swing after changing the position, so that the positioning plate 404 can be controlled to extend to the outer side of the movable die 1 to form a limit on the movable die 1.
Referring to fig. 12, in one embodiment, the positioning structure 4 further comprises:
The inserted link 408 is arranged inside the positioning hole 402, the inserted link 408 is in contact with the positioning column 401, the positioning column 401 pushes the inserted link 408 to change the position of the inserted link 408, a hydraulic cavity 409 is arranged at one end of the inserted link 408, which is away from the positioning column 401, and the inserted link 408 is inserted into the hydraulic cavity 409 to form extrusion on the hydraulic cavity 409.
In this embodiment, fig. 12 is a half-sectional view of the structure of the fixed mold 2, where the electromagnetic assembly 403 controls the position of the positioning rod, the positioning rod moves to push the insert rod 408 to move, the insert rod 408 is inserted into the hydraulic cavity 409 to form extrusion on the hydraulic cavity 409, and the other end of the hydraulic cavity 409 is connected with the expansion member 5, and the expansion member 5 controls the internal mold block 501 to expand and contract, so as to be inserted into the movable mold 1.
Referring to fig. 13, in one embodiment, the telescopic member 5 further comprises:
A pushing frame 502 connected to the block 501 and pushing the block 501 to move, the pushing frame 502 extending to the inside of the hydraulic chamber 409 away from the other end of the block 501;
The limiting frame 503 is located at one side of the pushing frame 502 and supports the pushing frame 502, a hydraulic telescopic rod 504 is arranged at one side of the pushing frame 502 inside the limiting frame 503, and the hydraulic telescopic rod 504 controls the position of the limiting frame 503.
In this embodiment, fig. 13 is a structure of a pushing frame 502, a limiting frame 503 and a hydraulic telescopic rod 504, where the pushing frame 502 is fixedly connected with a mold block 501, the mold block 501 is controlled by the pushing frame 502 in use, and since the position of one side of the pushing frame 502 is a hydraulic cavity 409, the position of the pushing frame 502 is not too stable, and therefore, the limiting frame 503 is controlled by the hydraulic telescopic rod 504, and the limiting frame 503 is fixedly connected with the pushing frame 502, and the control of the hydraulic telescopic rod 504 on the limiting frame 503 can change the position of the mold block 501.
Referring to fig. 13, in one embodiment, a pressure sensor 505 is disposed inside the telescoping end of hydraulic telescoping rod 504, and the sensing end of pressure sensor 505 is connected to the pressure applied by limiting frame 503.
In this embodiment, fig. 13 shows a structure of a hydraulic telescopic rod 504, a pressure sensor 505 and a limiting frame 503, and the pressure sensor 505 is used to detect the pressure of the limiting frame 503, so as to ensure the pressure of the limiting frame 503, and avoid the problem that the hydraulic telescopic rod 504 controls the limiting frame 503 to cause the excessive pressure of the limiting frame 503.
The embodiment of the invention also provides an injection molding process of the in-mold core multi-station multilayer car lamp optical perspective mirror, which is used for the injection mold structure and comprises the following steps:
step one, connecting an injection molding machine with an injection molding port, and debugging the melting temperature and the outlet temperature of the injection molding machine;
step two, driving equipment is connected with a movable die 1 and drives the movable die 1 to rotate, the movable die 1 is connected with a fixed die 2 through a guide structure 3, and the movable die 1 is combined with the fixed die 2 to finish injection molding of the lens;
Step three, after the lens is cooled, the positioning structure 4 is opened, the movable die 1 rotates to one side of the lower fixed die 2, the positioning structure 4 is connected with the movable die 1 and the fixed die 2 again, and the lens injection molding of the next layer is carried out;
and fourthly, the movable mould 1 moves to a picking position, the guide structure 3 ejects the lens, and the mechanical arm grabs the lens to pick the lens out.
In one embodiment, the position of the movable mold 1 is limited by the driving apparatus, and the fixed mold 2 is in a fixed state.
Although the present invention has been described in connection with the above embodiments, it should be understood that the invention is not limited thereto, but may be variously modified and modified by those skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention is accordingly defined by the appended claims.

Claims (10)

1. Injection mold structure of in-mold core multistation multilayer car light optics perspective mirror, its characterized in that includes:
The movable mould and the fixed mould form an injection cavity of the lens, the movable mould and the fixed mould are arranged in a plurality, the movable mould and the fixed mould can be matched, the movable mould and the different fixed moulds are combined to form injection cavities with different structures, and an injection port is formed in the fixed mould and is communicated with the injection cavity;
the guide structure is configured on the contact surface of the movable die and the fixed die, the guide structure limits the position of the brake die, the movable die can be correspondingly matched with the fixed die through the movement of the guide structure, a positioning structure is arranged between the movable die and the fixed die, and the positioning structure is matched with the fixed die to position the movable die;
The telescopic piece is arranged in the fixed die and connected with the positioning structure, the positioning structure controls the telescopic piece to slide into the movable die when positioning the movable die, the telescopic piece comprises a molding block forming an injection cavity, the molding block extends into the movable die and contacts with the inner wall of the movable die, and the injection port penetrates through the molding block;
The movable mould and the fixed mould are evenly spaced in an annular mode, the guiding structure limits the fixed mould to make circumferential rotation, the positioning structure comprises positioning columns arranged in the movable mould, the positioning columns are arranged in multiple points, the positioning columns at different positions correspond to the positioning structures in different fixed moulds, and the movable mould is internally provided with electromagnetic assemblies to control the positioning columns.
2. The injection mold structure of an in-mold core multi-station multilayer vehicular lamp optical lens according to claim 1, wherein the guide structure comprises:
The guide rail is embedded in the fixed die, and the guide rail, the movable die and the center shaft of the fixed die are all coincident;
A pressing block which extends into the guide rail and is matched with the guide rail, wherein two sides of the pressing block are obliquely arranged, and a rotatable ball is embedded in one side of the pressing block facing the inner wall of the guide rail and is contacted with the inner wall of the guide rail;
One end of the pressing block extending to the inside of the movable die is provided with an elastic piece, the elastic piece forms a support for the pressing block, and the pressing block enters the guide rail to extrude the elastic piece.
3. The injection mold structure of an in-mold core multi-station multilayer vehicular lamp optical lens according to claim 2, wherein the guide structure further comprises:
The ejector rod is positioned in the movable mould, and the position of the ejector rod, which is close to the pressing block, is connected with the pressing block and moves along with the pressing block;
The ejector rack is movably arranged inside the movable mould, one surface of the ejector rack is a part of the injection molding cavity, magnetic pieces are arranged between the ejector rack and the ejector rods and are respectively fixed on the outer walls of the ejector rods and the ejector rack, the magnetic pieces are mutually magnetically attracted, the ejector rods form limiting on the ejector rack when the pressing block is positioned on the inner side of the guide rail, and the ejector rack is in a limited state and the injection molding cavity is in an injection molding cavity in an injection molding state.
4. The injection mold structure of an in-mold core multi-station multilayer vehicular lamp optical lens according to claim 3, wherein the positioning structure further comprises:
the positioning holes are formed in the fixed die and are matched with the positioning columns, one side, facing the positioning columns, of each positioning column is provided with a chamfer, the positions of the positioning holes formed in the adjacent fixed die are staggered, and the movable die is matched with the positioning columns of the positioning holes formed in the fixed die after being matched with the fixed die;
The electromagnetic assembly forms a support for the positioning column, one end of the positioning column, which is positioned in the movable die, is provided with a magnetic plate, and the magnetic plate is matched with the electromagnetic assembly.
5. The injection mold structure of an in-mold core multi-station multilayer vehicle lamp optical lens according to claim 4, wherein the positioning structure further comprises:
the positioning plate is rotatably arranged in the movable die, the positioning plate is arranged in the side surface of the movable die, the middle part of the positioning plate is provided with a wafer, the wafer is rotatably arranged in the movable die, and two ends of the wafer are respectively provided with an electric telescopic rod for controlling the rotation angle of the wafer;
The clamping groove is formed in the inner side of the wafer, the locating plate and the telescopic end of the electric telescopic rod extend to the inside of the clamping groove, and the wafer rotates to control the swinging angle of the locating plate through the clamping groove.
6. The injection mold structure of an in-mold core multi-station multilayer vehicle lamp optical lens according to claim 5, wherein the positioning structure further comprises:
The inserted bar is arranged inside the positioning hole, the inserted bar is in contact with the positioning column, the positioning column pushes the inserted bar to change the position of the inserted bar, the hydraulic cavity is formed in one end, deviating from the positioning column, of the inserted bar, and the inserted bar is inserted into the hydraulic cavity to form extrusion on the hydraulic cavity.
7. The injection mold structure of an in-mold core multi-station multi-layer lamp optical lens as claimed in claim 6, wherein the expansion member further comprises:
The pushing frame is connected with the profile block and pushes the profile block to move, and the other end of the pushing frame, which is away from the profile block, extends to the inside of the hydraulic cavity;
the limiting frame is positioned on one side of the pushing frame and supports the pushing frame, a hydraulic telescopic rod is arranged on one side of the pushing frame inside the limiting frame, and the hydraulic telescopic rod controls the position of the limiting frame.
8. The injection mold structure and process of the multi-station multi-layer car light optical perspective mirror with the in-mold core according to claim 7, wherein a pressure sensor is arranged on the inner side of the telescopic end of the hydraulic telescopic rod, and the detection end of the pressure sensor is connected with the compression pressure of the limiting frame.
9. Injection molding process for an in-mold core multi-station multilayer car light optical lens for an injection mold structure according to any one of claims 1 to 8, comprising the steps of:
step one, connecting an injection molding machine with an injection molding port, and debugging the melting temperature and the outlet temperature of the injection molding machine;
Step two, driving equipment is connected with a movable die and drives the movable die to rotate, the movable die is connected with a fixed die through a guide structure, and the movable die is combined with the fixed die to complete injection molding of the lens;
step three, after the lens is cooled, a positioning structure is started, the movable die rotates to one side of the lower fixed die, the positioning structure is connected with the movable die and the fixed die again, and the next layer of lens injection molding is carried out;
And fourthly, moving the movable mould to a picking position, ejecting the lens by the guide structure, and picking the lens by the mechanical arm to pick the lens out.
10. The injection molding process of the in-mold core multi-station multilayer car light optical lens according to claim 9, wherein the movable mold is limited in position by a driving device, and the fixed mold is in a fixed state.
CN202410278574.9A 2024-03-12 2024-03-12 Injection mold structure and process of multi-station multi-layer car light optical perspective mirror with in-mold core Pending CN118238352A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410278574.9A CN118238352A (en) 2024-03-12 2024-03-12 Injection mold structure and process of multi-station multi-layer car light optical perspective mirror with in-mold core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202410278574.9A CN118238352A (en) 2024-03-12 2024-03-12 Injection mold structure and process of multi-station multi-layer car light optical perspective mirror with in-mold core

Publications (1)

Publication Number Publication Date
CN118238352A true CN118238352A (en) 2024-06-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202410278574.9A Pending CN118238352A (en) 2024-03-12 2024-03-12 Injection mold structure and process of multi-station multi-layer car light optical perspective mirror with in-mold core

Country Status (1)

Country Link
CN (1) CN118238352A (en)

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