WO2023104187A1 - Moule combiné en forme de feuille attiré par une force magnétique et son procédé de fabrication - Google Patents

Moule combiné en forme de feuille attiré par une force magnétique et son procédé de fabrication Download PDF

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Publication number
WO2023104187A1
WO2023104187A1 PCT/CN2022/137929 CN2022137929W WO2023104187A1 WO 2023104187 A1 WO2023104187 A1 WO 2023104187A1 CN 2022137929 W CN2022137929 W CN 2022137929W WO 2023104187 A1 WO2023104187 A1 WO 2023104187A1
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WO
WIPO (PCT)
Prior art keywords
mold
magnetic
sheet
frame
magnetic sheet
Prior art date
Application number
PCT/CN2022/137929
Other languages
English (en)
Chinese (zh)
Inventor
苏少虹
Original Assignee
苏少虹
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 苏少虹 filed Critical 苏少虹
Publication of WO2023104187A1 publication Critical patent/WO2023104187A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/30—Mounting, exchanging or centering
    • B29C33/301—Modular mould systems [MMS], i.e. moulds built up by stacking mould elements, e.g. plates, blocks, rods
    • B29C33/302—Assembling a large number of mould elements to constitute one cavity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00—Materials specially adapted for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the invention relates to a sheet-shaped combined mold which utilizes magnetic attraction and a manufacturing method thereof, belonging to the field of molds.
  • Mold is known as the "mother of industry", which refers to the sub-molds and tools used in industrial production to obtain products by injection molding, blow molding, blister, extrusion, die-casting or forging. In short, tools for making shaped objects.
  • mother of industry refers to the sub-molds and tools used in industrial production to obtain products by injection molding, blow molding, blister, extrusion, die-casting or forging.
  • tools for making shaped objects At present, there are various manufacturing methods for molds. Some mold cavities are processed by subtractive methods such as milling, cutting, turning and grinding, some are made by additive processing methods such as 3D printing, and molds are formed by pouring methods.
  • Additive processing technologies such as traditional 3D printing have the following problems: 1Slow processing speed and long time; 2The printing of large-sized components is limited; 3The types of printing consumables available are relatively limited and the cost is high; 4The strength of the printed components is insufficient. , 5 After the mold is made, the secondary modification and adjustment are difficult, costly, and the cycle is long. 7 Die maintenance is difficult and costly.
  • the purpose of the present invention is to provide a mold that can be manufactured quickly and at low cost and is convenient for secondary processing adjustment, repair and maintenance, and recycling. Another purpose of the present invention is to propose a method for making the mold.
  • a sheet-shaped combined mold that utilizes magnetic attraction, including a mold body, in which a cavity for molding an article is provided, and the mold body includes a plurality of magnetic The sheet body, each magnetic sheet body is provided with sub-mold cavities, and each magnetic sheet body is combined together by means of magnetic attraction, and the sub-mold cavities of each magnetic sheet body are combined to form the mold cavity.
  • the outer body of the magnetic sheet is covered with a mold frame for enhancing strength.
  • the mold frame includes a bottom plate and a surrounding frame surrounding the bottom plate, the bottom plate and the surrounding frame form an accommodating chamber for accommodating the magnetic sheet, and the magnetic
  • the sheet body is embedded in the accommodating chamber, and the magnetic sheet body is compounded with the mold frame to form a composite mold sheet, and a reinforced mold cavity corresponding to the mold cavity is provided on the composite mold sheet.
  • the outer casing of the mold body is provided with a mold base that cooperates with the mold body.
  • each of the magnetic sheet bodies is provided with a through hole, and also includes a fastening bolt, and the fastening bolt is passed through the through hole of each of the magnetic sheet bodies to lock each of the magnetic sheet bodies. Locks are held together.
  • a protective layer is coated or sprayed on the wall of the mold cavity.
  • the magnetic sheet body is a NdFeB magnetic sheet, an AlNiCo magnetic sheet, or a SmCo magnetic sheet, and also includes a cover plate that covers the mold cavity, and the mold cavity and the shoe sole shape to match.
  • the present invention also proposes a manufacturing method of a sheet-shaped combined mold that utilizes magnetic attraction, which is manufactured in the following manner: Step A, processing a plurality of sheet-shaped magnet material blocks, all or part of the magnet material blocks are provided with The sub-mould; step B, magnetizing a plurality of magnet material blocks to form a magnetic sheet body; step C, assembling the magnetic sheet bodies together by means of magnetic attraction, each magnetic sheet body constitutes the mold body, and each magnetic sheet body The sub-cavities form the cavity of the mold body.
  • the mold is manufactured in the following manner: step A, process a plurality of magnet material blocks in sheet shape, all or part of the magnet material blocks are provided with sub-cavities; step B, magnetic The material blocks are arranged together, each magnetic material block forms the mold body, and the sub-cavities of each magnetic sheet body form the mold cavity of the mold body; step C, magnetizing multiple magnet material blocks, so that each magnet material block magnetically attracts together.
  • the magnetic sheet body is formed by 3D printing or processed by laser cutting, wire cutting and the like.
  • the magnetic sheet body includes magnetic powder and a binder mixed together, and the magnetic powder is NdFeB permanent magnetic powder, AlNiCo permanent magnetic powder or samarium cobalt permanent magnetic powder or the like.
  • the magnetic sheet body is processed by 3D printing equipment
  • the 3D printing equipment includes a frame, a plurality of printing nozzles arranged on the frame, a conveying device arranged under the printing nozzles, and a
  • the conveying direction of the conveying device is the length direction of the frame
  • a plurality of printing nozzles are arranged along the width direction of the frame
  • each printing nozzle is arranged along the width of the frame
  • each printing nozzle conveys printing materials to form printing units in the die frame, and presses the printing units through the press plate, so that each printing unit extends in the horizontal direction and sticks together.
  • the print head is mounted on the frame through a first lifting mechanism
  • the pressing plate is mounted on the frame through a second lifting mechanism.
  • the mold frame includes a bottom plate and a surrounding frame arranged on the bottom plate, and a press plate is used to press the printing unit.
  • discharge holes are arranged on the pressing plate, and high-pressure gas nozzles are arranged on the pressing plate corresponding to the discharging holes.
  • the mold body is spliced together by magnetic sheets through magnetic attraction.
  • different numbers, different shapes, different structures, different thicknesses, and different materials can be selected according to requirements. Sheets, so as to quickly form molds of different specifications, improve mold production efficiency and reduce mold production costs.
  • the secondary processing and improvement or maintenance of the magnetic sheet body is carried out; by remaking part of the magnetic sheet body, to replace the magnetic sheet body that really needs to be modified, the secondary processing, improvement or maintenance of the mold can be carried out;
  • the wall of the cavity is coated or sprayed with a protective layer to increase the flatness of the mold surface and at the same time prevent the material from sticking to the cavity during the molding process.
  • the present invention also proposes a manufacturing method of a sheet-shaped combined mold that utilizes magnetic attraction.
  • the mold made by this method can be degaussed when the mold is scrapped and recycled, so that the magnetic pieces can be separated more easily, which is convenient for the follow-up of consumables. Recycle and reuse processing.
  • the printing units are respectively printed out by a plurality of printing nozzles, and then the printing units are squeezed to make each printing unit bonded together to form a magnetic sheet body, which is relatively Compared with the traditional 3D printing method, the invention has the advantages of simple movement path of the printing nozzle, easy manipulation, higher printing efficiency, wider selection of printing consumables, lower cost, and stronger printing component strength.
  • Fig. 1 is the structural representation of mold among the present invention.
  • Fig. 2 is a schematic diagram of the structure of the magnetic sheet body in the present invention.
  • Fig. 3 is a schematic diagram of the cooperative structure of the conveying device, the frame body and the printing unit in the present invention.
  • Fig. 4 is a structural schematic diagram of the middle platen of the present invention.
  • Fig. 5 is a schematic structural diagram of the printing device cooperating with the conveying device in the present invention.
  • Fig. 6 is a schematic diagram of the arrangement of the printing nozzles in the present invention (the arrow in the figure indicates the moving direction of the mounting plate).
  • FIG. 7 is another structural schematic diagram of the arrangement of the printing heads in the present invention (the arrow in the figure indicates the moving direction of the mounting plate).
  • FIG. 8 is another structural schematic diagram of the arrangement of the printing heads in the present invention (the arrow in the figure indicates the moving direction of the mounting plate).
  • Fig. 9 is a schematic diagram of another structure of the magnetic sheet body in the present invention.
  • Fig. 10 is a schematic diagram of the structure of the mold body matched with the mold base in the present invention.
  • Fig. 11 is another structural schematic diagram of the middle pressure plate of the present invention.
  • mold body 100 mold body 100; magnetic sheet body 10; sub-mold cavity 11; through hole 12; cavity 101; protective layer 102; cover plate 200; fastening bolt 20; conveying device 30; Frame 40; The first lifting mechanism 41; The second lifting mechanism 42; Print nozzle 43; Press plate 44; Discharge hole 441; ; Bottom plate 51; Reinforced cavity 52; Surrounding frame 53; Groove 54; Composite mold 500;
  • a sheet-shaped combined mold utilizing magnetic attraction includes a mold body 100, and a mold cavity 101 for forming an article is provided in the mold body 100.
  • the mold cavity 101 is connected to the shoe sole. Matched in shape, it can be used for foam molding of shoe soles.
  • the mold body 100 includes a plurality of magnetic sheet bodies 10.
  • the thickness of the magnetic sheet body 10 is 1mm, and each magnetic sheet body 10 is provided with a sub-mold cavity 11, more specifically, a sub-mold cavity 11 is a part of the cavity wall of the mold cavity.
  • Each magnetic sheet body 10 is combined together by means of magnetic attraction (according to the use requirements of the mold, there can be different magnetic attraction forces, usually strong magnetic attraction).
  • Each magnetic sheet body 10 The sub-mold cavities 11 are assembled into the mold cavity 101.
  • the shapes of the sub-moulds 11 on each of the magnetic sheet bodies 10 are the same or different.
  • the sub-moulds of each magnetic sheet body 10 When the shapes of the cavities 11 are the same, they can be combined into relatively regular cavities, such as cuboid-shaped cavities.
  • the combination of various sub-cavities 11 can form Die cavities of various shapes.
  • the present invention may also include a magnetic sheet body 10 without a sub-cavity 11 , and this type of magnetic sheet body 10 may be used as the periphery of the mold body 100 to increase the overall strength of the mold.
  • the magnetic sheet body 10 is covered with a mold frame 50 for enhancing strength
  • the mold frame 50 is, for example, a metal frame or a ceramic frame, which is used to enhance the strength of the magnetic sheet body 10.
  • strength which can be formed by metal powder through 3D printing, laser sintering, etc., or can be formed by degreasing and sintering the existing metal powder injection molding material after 3D printing.
  • the strength of the material selected for the mold frame 50 is better than Magnetic sheet body 10 to meet the molding requirements of some occasions.
  • die die frame 50 is as the tool of magnetic sheet body 10 processing, and magnetic sheet body 10 can be removed from die sheet frame 50, in In FIG. 9 , the magnetic sheet body 10 is bonded on the die frame 50 after being processed in the die frame 50 , and is integrated with the die frame 50 .
  • the mold body 100 is covered with a mold frame 300 that cooperates with the mold body 100, the mold body 100 is installed on the mold frame 300 as a mold core, and the mold body 100 and the mold frame 300 can be clamped.
  • the slot block is defined and positioned.
  • each of the magnetic sheet bodies 10 is provided with a through hole 12, the through hole 12 is generally arranged at a position near the corner of the mould, and also includes a fastening bolt 20, and the fastening bolt 20 is passed through the
  • the magnetic pieces 10 can be magnetically attracted together by the magnetic attraction of the magnetic pieces 10 , and the magnetic pieces 10 can be combined more firmly by further providing fastening bolts 20 .
  • a protective layer 102 is coated or sprayed on the wall surface of the mold cavity 101 (ie cavity wall).
  • the protective layer 102 can be made of Teflon material, which can increase the smoothness of the surface and prevent the material from sticking to the mold cavity 101 during the molding process.
  • the protective layer 102 may also be a gypsum layer, for example, to protect the mold body 100 .
  • the magnetic sheet body 10 is a neodymium-iron-boron magnetic sheet, an alnico magnetic sheet or a samarium-cobalt magnetic sheet, which can withstand the temperature of shoe sole foam molding.
  • the present invention also includes a cover plate 200 that is covered on the mold cavity 101.
  • the mold cavity 101 is adapted to the shape of the sole.
  • the cover plate 200 can also be made by magnetic suction.
  • a chamber matching the mold cavity 101 can also be provided. After the cover plate 200 is covered on the mold body 100, the cover plate 200 and the mold body 100 form a molding chamber, which is used to receive materials for molding.
  • the present invention also proposes a manufacturing method of a sheet-shaped combined mold utilizing magnetic force, which is produced in the following manner: step A, processing a plurality of sheet-shaped magnetic sheet bodies 10, all or part of the magnetic sheet bodies 10 are A sub-mold cavity 11 is provided; specifically, the material for making the abrasive tool is selected, and according to the characteristics of the material and processing technology of the product to be processed, the selection is not limited to polypropylene, ABS, PPS, rubber, resin and other materials as adhesives, Choose but not limited to fast-quenched NdFeB permanent magnet powder, AlNiCo permanent magnet powder, samarium cobalt permanent magnet powder, and other additive materials can also be selected according to needs, and the materials are stirred evenly in proportion to form a bonded permanent magnet.
  • the basic material of the magnetic sheet, the bonded permanent magnetic sheet, has been disclosed in the prior art, and will not be described in detail here.
  • the present invention skillfully applies it to the mold.
  • such materials are processed into standard sheet-shaped workpieces through 3D printing, calendering, compression molding, injection molding and other processes, and then laser cutting, wire cutting or sintering into magnetic sheet bodies 10 .
  • Step B magnetize the multiple magnetic pieces 10, preferably, before magnetizing, combine the multiple magnetic pieces 10 into a mold core in a certain order, and use the existing public technology to magnetize or demagnetize, so that the magnetic The pieces 10 are magnetic, and can attract each other, or demagnetize the magnetic pieces 10 , so as to realize the separation of the magnetic pieces 10 .
  • Step C the magnetized magnetic pieces 10 are assembled together by magnetic attraction, each magnetic piece 10 forms the mold body 100 , and the sub-cavities 11 of each magnetic piece 10 form the mold cavity of the mold body 100 .
  • the initial precision of the mold is determined by the thickness of the magnetic sheet body 10, and in this embodiment, the initial precision is 1 mm.
  • the mold cores are nested into the mold frame 300 to form the lower mold of the mould.
  • the precision of the mold can be inspected by means of laser scanning, trial processing products, etc.
  • the present invention can modify, improve, repair and maintain the mold quickly and at low cost through simple secondary processing as required.
  • the mold can be combined with magnetic sheet bodies 10 of different thicknesses according to needs. If the initial precision cannot meet the requirements, the mold can be modified by simple secondary processing.
  • the processing method can be: 1 milling machine, grinding machine or other processes to carry out secondary processing modification, repair and maintenance of the mold; 2 by remaking part of the magnetic sheet body 10 to replace the magnetic sheet body 10 that really needs to be modified to perform secondary processing on the mold Modification, repair and maintenance; 3
  • the wall surface of the mold cavity can be coated or sprayed with a protective layer to increase the flatness of the mold surface and at the same time prevent the material from sticking to the mold cavity during the molding process.
  • the mold can be conveniently recycled and reused, specifically: 1. before the new mold is needed, the data of the existing mold in stock is matched by the database, a suitable old mold is selected, and the old mold is simply processed to form a new mold; 2. For molds that have no preservation value, the existing mature degaussing technology can be used to demagnetize the mold magnetic sheet. After degaussing, the magnetic sheet body 10 can be easily separated, broken, and re-granulated into a new bonded permanent magnetic sheet. base material.
  • the magnetic sheet body 10 is formed by 3D printing or by laser cutting, wire cutting, etc., preferably, the magnetic sheet body 10 is formed by 3D printing.
  • the magnetic sheet body 10 is processed by 3D printing equipment, and the 3D printing equipment includes a frame 40, a plurality of print nozzles 43 arranged on the frame 40, and
  • the conveying device 30 and the mold frame 50 arranged on the conveying device 30, take the conveying direction of the conveying device 30 as the length direction of the frame 40, and a plurality of print nozzles 43 are arranged along the width direction of the frame 40, preferably Specifically, each print nozzle 43 is arranged on the frame 40 in a manner capable of moving along the width direction of the frame 40.
  • the lower end of the first lifting mechanism 41 is provided with a mounting plate 46, and a mounting plate 46 is provided on the mounting plate 46.
  • the screw mandrel 48 is connected to the output shaft of the motor 47, the screw mandrel 48 is arranged along the width direction of the frame 40, the screw mandrel nut (not shown in the figure) is arranged on the screw mandrel 48, and the printing nozzle 43 is installed on the screw mandrel
  • the nut moves on the screw rod 48 along with the screw rod nut, so as to realize the movement of the printing nozzle 43 in the width direction of the frame 40 .
  • the mold frame 50 is placed on the conveying device 30, and the conveying device 30, for example, can adopt a conveyor belt to drive the mold frame 50 to move in the length direction of the frame 40, and cooperate with the printing nozzle 43 to move in the width direction of the frame 40. , to realize the movement of the printing nozzle 43 in two dimensions.
  • each row of shower heads includes a plurality of shower heads 43, and the plurality of shower heads 43 are arranged in dislocation in the moving direction of the mounting plate 46.
  • each row of nozzles is used to print a printing unit 60 to improve printing efficiency and printing accuracy.
  • each nozzle 43 is position-controlled by a motor 47 and a screw mandrel 48, the initial position of the nozzle 43 can be adjusted by the motor 47 and the screw rod 48, thereby controlling the width of each printing unit 60, thereby better controlling the magnetic The shape of sheet 10.
  • the position of the die frame 50 can be limited by various limiting mechanisms.
  • the conveyor belt is provided with a positioning bump 31
  • a plurality of grooves 54 are correspondingly provided on the lower end surface of the die frame 50 , and when the die frame 50 is placed on the conveyor belt, the positioning protrusions 31 snap into the grooves 54 .
  • each printing nozzle 43 transports printing materials to form printing units 60 in the die frame 50 respectively.
  • five printing units 60 are printed in the die frame 50, and each print Units 60 may have the same structure or different structures.
  • the printing units 60 are squeezed by the pressing plate 44 so that each printing unit 60 expands in the horizontal direction and bonded together, that is, the printing units 60 are flattened and the adjacent printing units 60 are bonded together.
  • the print head 43 is installed on the frame 40 through the first lifting mechanism 41
  • the pressing plate 44 is installed on the frame 40 through the second lifting mechanism 42
  • the first lifting mechanism 41 and the second elevating mechanism 42 can adopt air cylinders, for example.
  • the die frame 50 includes a bottom plate 51 and a surrounding frame 53 arranged on the bottom plate 51.
  • the surrounding frame 53 is a rectangular frame.
  • the printing unit 60 presses After the magnetic sheet body 10 is formed, if the requirement for surface smoothness is high, the sub-mold cavity 11 can be further processed by turning, milling or grinding. In this embodiment, the magnetic sheet body 10 can be separated from the die frame 50 after processing.
  • the magnetic sheet body 10 is formed after the magnetic material is printed on the die frame 50, and the magnetic sheet body 10 is bonded with the die frame 50, and the die frame 50 is used to increase The strength of the magnetic sheet.
  • the die frame 50 is assembled together with the magnetic sheet body 10, and the thickness of the bottom plate 51 in the die frame 50 is set according to the magnetism of the magnetic sheet body 10 to ensure that the die frame 50 is sleeved.
  • the magnetic sheet bodies 10 can attract each other.
  • the die frame 50 includes a bottom plate 51 and a surrounding frame 53 arranged on the bottom plate 51, and the magnetic sheet body 10 is combined with the die frame 50
  • Composite mold sheet 500 is formed, and composite mold sheet 500 is provided with a reinforcing mold cavity 52 corresponding to the mold cavity.
  • the reinforcing mold cavity 52 is arranged on the surrounding frame 53.
  • each reinforcement Cavity 52 forms cavity 101 .
  • the present invention can also set discharge holes 441 on the press plate 44. When the press plate 44 presses the printing unit, excess materials can enter the discharge holes 441 and be temporarily stored in the discharge holes 441.
  • the magnetic material in the discharge hole 441 and the magnetic material of the die frame 50 can be dislocated to form a shear, and the magnetic material in the discharge hole 441 is separated from the magnetic sheet body 10,
  • the pressing plate 44 is provided with a high-pressure air nozzle 442, and after the die frame 50 is removed, the material in the discharge hole 441 can be blown away by the high-pressure air nozzle 442.
  • the printing method of the magnetic sheet body 10 of the present invention uses multiple nozzles to form the printing unit 60 respectively, and then performs extrusion bonding.
  • the optional range of printing consumables is wider and the cost is lower.
  • the strength is higher, the processing efficiency is higher, each printing unit 60 has a relatively regular shape, and the movement path of the printing nozzle 43 is simple, which is convenient for control and reduces the cost.
  • through holes 12 are formed on the mold body 100 by drilling, and the magnetic pieces 10 are locked together by fastening bolts 20 .

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

La présente invention concerne un moule combiné en forme de feuille attiré par une force magnétique. Le moule comprend un corps de moule, une cavité de moule étant formée dans le corps de moule. Le corps de moule comprend une pluralité de corps de feuille magnétique. Chaque corps de feuille magnétique est pourvu d'une cavité de sous-moule. Les corps de feuille magnétique sont combinés ensemble au moyen d'une attraction magnétique et les cavités de sous-moule des corps de feuille magnétique sont épissées dans la cavité de moule. Après avoir utilisé la solution technique selon la présente invention, le corps de moule est formé par épissage des corps de feuille magnétique par attraction magnétique, et lorsque le corps de moule est assemblé, des corps de feuille magnétique ayant des nombres différents, des formes différentes, des structures différentes et des épaisseurs différentes et composées de matériaux différents peuvent être sélectionnés selon les besoins, ce qui permet de former rapidement des moules de caractéristiques différentes, d'améliorer l'efficacité de production du moule et de réduire le coût de production du moule. D'autre part, après que le moule est usiné et formé pour la première fois, le moule peut être rapidement modifié et entretenu et réparé ultérieurement à faible coût au moyen d'un usinage secondaire simple. La présente invention concerne en outre un procédé de fabrication du moule combiné de type à feuille magnétique.
PCT/CN2022/137929 2021-12-10 2022-12-09 Moule combiné en forme de feuille attiré par une force magnétique et son procédé de fabrication WO2023104187A1 (fr)

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CN202111505638.7A CN114043648A (zh) 2021-12-10 2021-12-10 一种利用磁力吸合的片状组合式模具及其制作方法
CN202111505638.7 2021-12-10

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CN114043648A (zh) * 2021-12-10 2022-02-15 苏少虹 一种利用磁力吸合的片状组合式模具及其制作方法

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