CN115635648A - Injection molding device and injection molding process for reducing flow marks of injection molding workpiece - Google Patents
Injection molding device and injection molding process for reducing flow marks of injection molding workpiece Download PDFInfo
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- CN115635648A CN115635648A CN202211158187.9A CN202211158187A CN115635648A CN 115635648 A CN115635648 A CN 115635648A CN 202211158187 A CN202211158187 A CN 202211158187A CN 115635648 A CN115635648 A CN 115635648A
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 70
- 230000005291 magnetic effect Effects 0.000 claims abstract description 80
- 239000002184 metal Substances 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 30
- 230000006698 induction Effects 0.000 claims abstract description 12
- 239000004033 plastic Substances 0.000 claims abstract description 9
- 229920003023 plastic Polymers 0.000 claims abstract description 9
- 238000000465 moulding Methods 0.000 claims abstract description 8
- 230000005389 magnetism Effects 0.000 claims description 55
- 239000002994 raw material Substances 0.000 claims description 24
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 238000002955 isolation Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 230000005294 ferromagnetic effect Effects 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims description 2
- 239000012212 insulator Substances 0.000 claims 5
- 239000000047 product Substances 0.000 description 54
- 230000008569 process Effects 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The application relates to a reduce injection moulding device and injection moulding process of work piece flow mark of moulding plastics, it includes the injection molding machine and sets up the mould on the injection molding machine, the mould includes cover half and movable mould, cover half and movable mould are provided with the mold core respectively, be provided with the product die cavity between the mold core of the mutual butt of cover half and movable mould, be provided with the mechanism of magnetizing in the movable mould, the mechanism of magnetizing includes the magnetic core, sets up in the butt piece of magnetic core tip and coils of coiling on the magnetic core, the lateral wall butt of cover half can be kept away from with the mold core to the butt piece. The metal powder is oriented by the magnetic induction lines generated by the magnetizing mechanism, so that the metal powder can be parallel to the surface of a molded product, and the surface of the finally molded product is not easy to generate flow marks.
Description
Technical Field
The application relates to the technical field of injection molds, in particular to an injection molding device and an injection molding process for reducing flow marks of injection molding workpieces.
Background
With the improvement of the attention degree of environmental protection, the traditional spraying and powder spraying process is gradually marginalized due to the defects of severe and toxic operation environment and the like. At present, in order to make the surface of a product have a metallic texture but avoid spraying, a certain amount of metal powder is added into an injection molding base material in the injection molding process, and the surface of the finally molded product has the metallic texture through the metal powder.
However, in the process that the metal powder moves along the forming cavity of the product in the die, the shape of the metal powder changes along with the arrangement mode of the ribs in the forming cavity, the metal powder is usually sheet-shaped under the microcosmic condition, and when the metal powder contacts with the ribs perpendicular to the flowing direction of the metal powder in the flowing process, the metal powder is easily vertically arranged on the surface of the product, namely, a plane where the metal powder is located forms a large included angle with the outer surface of the product, so that flow marks are generated on the surface of the product, and the surface presenting effect of the product is influenced.
Therefore, a new technical solution is needed to solve the above problems.
Disclosure of Invention
In order to prevent the surface of a product from generating flow marks when an injection molding raw material containing metal powder is subjected to injection molding, the application provides an injection molding device and an injection molding process for reducing the flow marks of an injection molding workpiece.
The application provides a reduce device of moulding plastics of work piece flow mark of moulding plastics adopts following technical scheme:
the utility model provides a reduce injection moulding device of work piece flow mark of moulding plastics, includes the injection molding machine and sets up the mould on the injection molding machine, the mould includes cover half and movable mould, cover half and movable mould are provided with the mold core respectively, be provided with the product die cavity between the mold core of the mutual butt of cover half and movable mould, be provided with the mechanism of magnetizing in the movable mould, the mechanism of magnetizing includes the magnetic core, sets up in the butt piece of magnetic core tip and coils on the magnetic core of coiling, the butt piece can keep away from the lateral wall butt of cover half with the mold core.
By adopting the technical scheme, the metal powder is oriented by utilizing the magnetic induction lines generated by the magnetizing mechanism, so that the metal powder can be parallel to the surface of a molded product, and the surface of the finally molded product is not easy to generate flow marks.
Optionally: the supporting blocks are arranged between the wires of the coils, and the supporting blocks close to the fixed die can be abutted to the die core.
Through adopting above-mentioned technical scheme, utilize the supporting shoe to support the whole shape of magnetic core, make the magnetic core difficult for producing the change in whole shape of magnetic core when receiving the pressure that the mold core exerted to the position of mold core for the movable mould is difficult for producing the change when the compound die, makes the forming process of product difficult for receiving the influence.
Optionally: be provided with the magnetism shield in the movable mould, the magnetism shield is the opening setting towards the one end of cover half, it sets up in the magnetism shield to fill magnetism mechanism, the one end that the butt joint piece is close to the cover half and the one end parallel and level that the magnetism shield is close to the cover half.
Through adopting above-mentioned technical scheme, utilize the magnetism shield to make the magnetic field of mechanism that magnetizes be difficult for directly influencing the cover half, make the cover half difficult for adsorbing magnetic attraction metal product in the in-process that uses, make the use of cover half difficult for receiving the influence.
Optionally: the mold core is provided with the magnetism shield outside being vertical lateral wall, magnetism shield cladding is vertical outer wall in the mold core, the one end and the magnetism shield butt that the cover half was kept away from to the magnetism shield, the one end that the magnetism shield is close to the cover half is close to the lateral wall parallel and level of cover half with the mold core on the movable mould.
Through adopting above-mentioned technical scheme, make the magnetic force on the mold core be difficult for stretching to the movable mould to make the movable mould difficult to adsorb magnetism nature metal at the in-process of work, make the normal work of movable mould be difficult for receiving the influence.
Optionally: and a magnetic isolation plate is arranged on the end surface, close to the fixed die, of the die core on the movable die.
Through adopting above-mentioned technical scheme, the mold core on the movable mould can receive the effect in the magnetic field of mechanism of magnetizing and produce magnetic force after movable mould and movable mould compound die, utilizes the magnetic shield to make the difficult transmission that produces magnetic force between two mold cores, makes the difficult metal parts that adsorb magnetism nature on the cover half, makes the normal work of cover half and movable mould difficult to receive the influence.
Optionally: the terminal surface that the mold core on the movable mould is close to the cover half is provided with the holding tank, the holding tank is vertical outer wall with the mold core and runs through, the magnetic shield sets up in the holding tank, the terminal surface that the magnetic shield is close to the cover half is close to the terminal surface parallel and level of cover half with the mold core, the magnetic shield is vertical lateral wall and magnetic shield inner wall butt.
Through adopting above-mentioned technical scheme, make the magnetic shield set up in the mold core to at the in-process that two mold cores are close to the compound die each other, two mold cores can butt each other, make the sealed effect between two mold cores difficult for receiving the influence.
Optionally: and a connecting hole for a wire passing through the coil is formed in the side wall of the movable die, a magnetism isolating pipe is arranged in the connecting hole, and the magnetism isolating pipe is communicated with the inner cavity of the magnetism isolating cover.
By adopting the technical scheme, the connecting holes are isolated by the magnetism isolating cover, so that the magnetic induction line is not easy to spread through the connecting part of the communicating holes and the magnetism isolating cover, and the magnetic force is not easy to influence the movable mould.
Optionally: and a heat insulation pipe is arranged in the magnetism insulation pipe, and a lead of the coil passes through the heat insulation pipe.
Through adopting above-mentioned technical scheme, when the movable mould is heated and heaies up because of moulding plastics, utilize heat-insulating pipe separation certain heat, make the wire be difficult for leading to insulating skin to break because of the temperature risees.
The application also discloses an injection molding process for reducing the flow marks of injection molded workpieces, which comprises the following steps:
s1, starting an injection molding machine to inject an injection molding raw material in a molten state into a product cavity of a mold until the product cavity is full of the injection molding raw material, wherein ferromagnetic metal powder is mixed in the injection molding raw material;
s2, energizing a coil, and orienting metal powder in the injection molding raw material by using a magnetizing device, wherein a magnetic induction line of the magnetizing device is parallel to the surface of a product in a product cavity;
s3, cooling the injection molding raw material in the product cavity, and powering off the coil after cooling is completed;
and S4, separating the die and ejecting the formed product out for blanking.
By adopting the technical scheme, after the injection molding raw material fills the product cavity, the metal powder is oriented by the magnetic induction line of the magnetizing mechanism, so that the metal powder is more parallel to the surface of the product, and the surface of the finally molded product is not easy to generate flow marks.
In summary, the present application includes at least one of the following beneficial technical effects:
1. arranging a magnetizing mechanism capable of applying magnetic induction lines to the metal powder on the injection mold, wherein the magnetic induction lines of the magnetizing mechanism orient the metal powder to enable the metal powder to be more parallel to the surface of a product, so that the surface of the finally molded product is not easy to generate flow marks;
2. the magnetism isolating cover, the magnetism isolating sleeve and the magnetism isolating plate are respectively arranged outside the magnetizing mechanism and the mold core, so that magnetic induction lines are distributed on the mold core and are not easy to influence the movable mold and the movable mold, and the normal use process of the mold is not easy to influence.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
FIG. 2 is a schematic view illustrating internal structures of a fixed mold and a movable mold according to an embodiment of the present application;
FIG. 3 is an enlarged view of the portion A of FIG. 2;
FIG. 4 is a schematic view for showing the positions of the connecting holes on the moving mold according to the embodiment of the present application;
fig. 5 is an enlarged view of a portion B of fig. 4.
In the figure, 1, an injection molding machine; 2. moving the mold; 21. mounting grooves; 22. a mold core; 221. a product cavity; 222. accommodating grooves; 23. connecting holes; 24. a magnetism isolating pipe; 25. a heat insulation pipe; 3. fixing a mold; 31. a hot nozzle; 4. a magnetizing mechanism; 41. a magnetic core; 42. a butting block; 43. a coil; 44. a support block; 5. a magnetic shield; 6. a magnetic isolation sleeve; 7. a magnetic shield plate; 8. a base plate; 81. an ejector plate; 82. and (4) a thimble.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The application discloses a reduce device of moulding plastics of work piece flow mark of moulding plastics, as shown in fig. 1 and fig. 2, including injection molding machine 1 and set up the mould on injection molding machine 1, the mould includes cover half 3 and movable mould 2, all be provided with mounting groove 21 on the mutual lateral wall that is close to of cover half 3 and movable mould 2, all be provided with mold core 22 in the mounting groove 21, be provided with product cavity 221 between two mold cores 22 that can butt each other, also can cave in on the mold core 22 of movable mould 2 and form product cavity 221, also can cave in on the mold core 22 on cover half 3 and form product cavity 221, can also set up respectively on two mold cores 22 corresponding position respectively and cave in forming product cavity 221, set up respectively partly at two mold core 22 corresponding position in this embodiment and cave in forming product cavity 221, be used for making the product in product cavity 221 internal forming. As shown in fig. 3, a magnetizing mechanism 4 for magnetizing the core 22 is further provided in the mounting groove 21 of the movable mold 2, the magnetizing mechanism 4 includes a plate-shaped magnetic core 41, two abutting pieces 42 respectively provided at ends of the magnetic core 41 which are away from each other, and a coil 43 wound around the magnetic core 41, a lower end of the abutting piece 42 is lower than a lower end of the coil 43, an upper end of the abutting piece 42 is higher than an upper end of the coil 43, and a lower end of the abutting piece 42 abuts against an upper end of the core 22 in the movable mold 2. The magnetic core 41 is vertically arranged and a gap is left between the side wall of two abutting blocks 42 and the mounting inner wall, so that the coil 43 can pass through and be wound. The upper end of the mold core 22 is connected with the lower end of the abutting block 42, so that after the coil 43 is electrified, the magnetic field orients the ferromagnetic metal powder in the injection molding raw material, the metal powder is more parallel to the surface of the product, and the surface of the product is not easy to generate flow marks after the final product is molded.
As shown in fig. 3, during the process of closing the mold core 22 and producing, the mold core 22 is subjected to vertical pressure, and the pressure applied to the mold core 22 is transmitted to the abutting block 42, so that the magnetizing mechanism 4 is easily deformed to affect the normal use of the magnetizing mechanism 4. Therefore, a plurality of supporting blocks 44 parallel to the abutting block 42 are welded on the upper end face and the lower end face of the magnetic core 41, the lower end face of each supporting block 44 is flush with the lower end face of the abutting block 42, the lower end of each supporting block 44 can be abutted to the end face of the mold core 22 far away from the product cavity 221, the upper end of each supporting block 44 is flush with the upper end face of the abutting block 42, and the supporting blocks 44 are respectively arranged in gaps of wires of the coil 43. The supporting block 44 is used to increase the overall strength of the magnetizing mechanism 4, so that the magnetizing mechanism 4 is not easy to deform when being subjected to the pressure applied by the mold core 22, and the using process of the magnetizing mechanism 4 is more stable.
As shown in fig. 3, since the magnetic field of the magnetizing mechanism 4 can also pass through the movable mold 2 during the operation, the movable mold 2 can adsorb the metal product, and the safety during the injection molding process is affected, the magnetic shield 5 provided with a lower opening is further disposed in the mounting groove 21, and the outer wall of the magnetic shield 5 abuts against the inner wall of the mounting groove 21 and is fixed on the movable mold 2 by using a magnetic shield bolt. The mechanism 4 that magnetizes sets up in magnetism isolation cover 5, and the one end butt that cover half 3 was kept away from to butt piece 42 is in the inner chamber roof of magnetism isolation cover 5, and butt piece 42 is vertical lateral wall and is the laminating of vertical inner wall with magnetism isolation cover 5, and the lower extreme of magnetism isolation cover 5 and the lower terminal surface parallel and level of butt piece 42. The magnetic field generated by the magnetizing mechanism 4 is not easy to directly influence the movable mould 2 by utilizing the magnetism isolating cover 5, so that the movable mould 2 is not easy to directly adsorb metal parts, and the injection molding process is more stable.
When the mold core 22 is subjected to the action of the magnetic field, the magnetic field is carried by the mold core itself, so that the magnetic field is conducted to the movable mold 2, the movable mold 2 adsorbs the metal product, and the injection molding process is affected. Therefore, the magnetic isolation sleeve 6 is sleeved outside the mold core 22 on the movable mold 2, the magnetic isolation sleeve 6 is wrapped on the vertical outer wall of the mold core 22, and the inner wall of the magnetic isolation sleeve 6 is abutted to the outer wall of the mold core 22. The upper end of the magnetism isolating sleeve 6 is connected with the lower end of the magnetism isolating cover 5 in a butt mode, and the lower end of the magnetism isolating cover 5 is flush with the lower end face of the model. The magnetic isolation sleeve 6 is utilized to ensure that the magnetic force on the mold core 22 is not easy to generate to cause the movable mold 2, so that the movable mold 2 is not easy to adsorb metal products in the working process.
Because after two mold cores 22 compound dies, magnetic force on the mold core 22 on the movable mould 2 can be conducted to cover half 3 and movable mould 2 through the mold core 22 on the cover half 3, thereby still can influence the normal use of grinding apparatus, consequently, the terminal surface that the mold core 22 on the movable mould 2 is close to cover half 3 has seted up holding tank 222, holding tank 222 is vertical lateral wall with mold core 22 and runs through, be provided with magnetic shield 7 in the holding tank 222, magnetic shield 7 fills up holding tank 222, and the lower terminal surface parallel and level of the lower terminal surface of magnetic shield 7 and mold core 22, magnetic shield 7 is vertical lateral wall and magnetic shield 6's interior other butt, magnetic shield 7, magnetic shield 5 and magnetic shield 6 are the silicon steel material. The magnetic force between the two mold cores 22 is isolated to a certain extent through the magnetic isolation plate 7, after the two mold cores 22 are abutted and the injection molding raw materials are filled in the product cavity 221 to electrify the coil 43, the magnetic force on the magnetism is not easy to be conducted to the movable mold 2 and the fixed mold 3, and the production process of the product is safer.
As shown in fig. 4 and 5, the side wall of the movable mold 2 is further provided with a connecting hole 23 for passing a lead wire of the coil 43, the connecting hole 23 is communicated with the inner cavity of the mounting groove 21, and the lead wire of the coil 43 passes through the magnetism isolating cover 5 and extends out of the movable mold 2 through the connecting hole 23. A magnetism isolating pipe 24 is arranged in the connecting hole 23 in a walking mode, the magnetism isolating pipe 24 is made of silicon steel, and one end of the magnetism isolating pipe 24 is abutted to the outer wall of the magnetism isolating cover 5. The insulating pipe 25 is coaxially arranged in the magnetism isolating pipe 24, the lead passes through the insulating pipe 25, the magnetism is not easily conducted out of the magnetizing mechanism 4 by the magnetism isolating pipe 24, and the heat generated when the mold is injected is isolated by the heat isolating pipe 25, so that the electrifying process of the lead is not easily influenced by high temperature.
As shown in fig. 2, a bottom plate 8 is arranged on one side of the fixed mold 3 away from the movable mold 2, an ejector plate 81 is slidably arranged between the bottom plate 8 and the fixed mold 3, a plurality of ejector pins 82 are arranged on the ejector plate 81, the ejector pins 82 are inserted into the mold core 22, and the ejector pins 82 can eject a product molded in the product cavity 221. The fixed die 3 is further provided with a hot nozzle 31 for injecting injection molding raw materials into the product cavity 221, the hot nozzle 31 is communicated with the product cavity 221, the hot nozzle 31 is a needle valve type hot nozzle 31 in the embodiment, and the hot nozzle 31 penetrates through the ejector pin 82 plate 81. One side of the bottom plate 8, which is far away from the fixed die 3, is also provided with a runner plate, the runner plate is provided with a glue injection port for injecting injection molding raw materials, and the glue injection port is communicated with the hot nozzle 31.
The implementation principle of the embodiment is as follows: after the movable mold 2 and the fixed mold 3 are closed, the injection molding machine 1 injects the injection molding raw material mixed with the metal powder into the product cavity 221 until the product cavity 221 is completely filled, the magnetizing mechanism 4 starts to work and enables the magnetic induction lines to pass through the product cavity 221, the metal powder in the injection molding raw material is oriented by the magnetic induction lines until the magnetizing mechanism 4 stops working after the injection molding raw material is cooled, and the fixed mold 3 and the movable mold 2 eject the product by the ejector pins 82.
An injection molding process for reducing flow marks of an injection molding workpiece comprises the following steps:
s1, starting an injection molding machine 1 to inject a molten injection molding raw material into a product cavity 221 of a mold until the product cavity 221 is full of the injection molding raw material, wherein ferromagnetic metal powder is mixed in the injection molding raw material;
s2, electrifying the coil 43, and orienting the metal powder in the injection molding raw material by using a magnetizing device, wherein the magnetic induction line of the magnetizing device is parallel to the surface of the product in the product cavity 221;
s3, cooling the injection molding raw material in the product cavity 221, and powering off the coil 43 after cooling is completed;
and S4, separating the mold and ejecting and blanking the molded product through an ejector pin 82.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a reduce device of moulding plastics of work piece flow mark that moulds plastics which characterized in that: including injection molding machine (1) and set up the mould on injection molding machine (1), the mould includes cover half (3) and movable mould (2), cover half (3) and movable mould (2) are provided with mold core (22) respectively, be provided with product die cavity (221) between mold core (22) of the mutual butt of cover half (3) and movable mould (2), be provided with in movable mould (2) and fill magnetism mechanism (4), fill magnetism mechanism (4) including magnetic core (41), set up in butt piece (42) of magnetic core (41) tip and coil (43) of coiling on magnetic core (41), the lateral wall butt of cover half (3) can be kept away from with mold core (22) to butt piece (42).
2. An injection molding apparatus for reducing flow marks in an injection molded workpiece as claimed in claim 1, wherein: the supporting blocks (44) parallel to the abutting blocks (42) are arranged on two side walls of the magnetic core (41), the supporting blocks (44) are arranged between wires of the coil (43), and the supporting blocks (44) close to the fixed die (3) can abut against the die core (22).
3. An injection molding apparatus for reducing flow marks in an injection molded workpiece as claimed in claim 2, wherein: be provided with in movable mould (2) and separate magnetic shield (5), separate magnetic shield (5) and be the opening setting towards the one end of cover half (3), it sets up in separating magnetic shield (5) to fill magnetic mechanism (4), one end that butt joint piece (42) are close to cover half (3) and separate magnetic shield (5) one end parallel and level that is close to cover half (3).
4. An injection molding apparatus for reducing flow marks in an injection molded workpiece as defined in claim 3, wherein: the mold core (22) are provided with magnetism insulator (6) outside the vertical lateral wall, magnetism insulator (6) cladding is vertical outer wall in mold core (22), the one end and the magnetism insulator (5) butt of keeping away from cover half (3) in magnetism insulator (6), magnetism insulator (6) are close to the one end of cover half (3) and mold core (22) on movable mould (2) and are close to the lateral wall parallel and level of cover half (3).
5. An injection molding apparatus for reducing flow marks in an injection molded workpiece as claimed in claim 4, wherein: and a magnetic isolation plate (7) is arranged on the end surface, close to the fixed die (3), of the die core (22) on the movable die (2).
6. An injection molding apparatus for reducing flow marks in an injection molded workpiece as defined in claim 5, wherein: the terminal surface that mold core (22) on movable mould (2) are close to cover half (3) is provided with holding tank (222), holding tank (222) are vertical outer wall with mold core (22) and run through, magnetism proof board (7) set up in holding tank (222), the terminal surface that magnetism proof board (7) are close to cover half (3) is close to the terminal surface parallel and level of cover half (3) with mold core (22), magnetism proof board (7) are vertical lateral wall and magnetism proof cover (6) inner wall butt.
7. An injection molding apparatus for reducing flow marks in an injection molded workpiece as claimed in claim 3, wherein: the side wall of the moving die (2) is provided with a connecting hole (23) for a wire passing through the coil (43), a magnetism isolating pipe (24) is arranged in the connecting hole (23), and the magnetism isolating pipe (24) is communicated with the inner cavity of the magnetism isolating cover (5).
8. An injection molding apparatus for reducing flow marks in an injection molded workpiece as defined in claim 7, wherein: a heat insulation pipe (25) is arranged in the magnetism isolation pipe (24), and the lead of the coil (43) passes through the heat insulation pipe (25).
9. An injection molding process for reducing flow marks of an injection molded workpiece, which applies the injection molding device for reducing flow marks of the injection molded workpiece according to any one of claims 1 to 8, and is characterized in that: the method comprises the following steps:
s1, starting an injection molding machine (1) to inject a molten injection molding raw material into a product cavity (221) of a mold until the product cavity (221) is filled with the injection molding raw material, wherein ferromagnetic metal powder is mixed in the injection molding raw material;
s2, energizing a coil (43), and orienting metal powder in the injection molding raw material by using a magnetizing device, wherein a magnetic induction line of the magnetizing device is parallel to the surface of a product in a product cavity (221);
s3, cooling the injection molding raw material in the product cavity (221), and powering off the coil (43) after cooling is completed;
and S4, separating the die and ejecting the formed product out for blanking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211158187.9A CN115635648A (en) | 2022-09-22 | 2022-09-22 | Injection molding device and injection molding process for reducing flow marks of injection molding workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211158187.9A CN115635648A (en) | 2022-09-22 | 2022-09-22 | Injection molding device and injection molding process for reducing flow marks of injection molding workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115635648A true CN115635648A (en) | 2023-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211158187.9A Pending CN115635648A (en) | 2022-09-22 | 2022-09-22 | Injection molding device and injection molding process for reducing flow marks of injection molding workpiece |
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| CN (1) | CN115635648A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01171917A (en) * | 1987-12-28 | 1989-07-06 | Koito Mfg Co Ltd | Formation of containing metal layer and synthetic resin molding having same layer |
| CN103421339A (en) * | 2012-05-17 | 2013-12-04 | 铃木株式会社 | Resin molded body and method of manufacturing same |
| CN109880280A (en) * | 2019-03-27 | 2019-06-14 | 金旸（厦门）新材料科技有限公司 | It is a kind of to exempt from spraying ABS material and preparation method thereof with 3D pearl effect |
-
2022
- 2022-09-22 CN CN202211158187.9A patent/CN115635648A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01171917A (en) * | 1987-12-28 | 1989-07-06 | Koito Mfg Co Ltd | Formation of containing metal layer and synthetic resin molding having same layer |
| CN103421339A (en) * | 2012-05-17 | 2013-12-04 | 铃木株式会社 | Resin molded body and method of manufacturing same |
| CN109880280A (en) * | 2019-03-27 | 2019-06-14 | 金旸（厦门）新材料科技有限公司 | It is a kind of to exempt from spraying ABS material and preparation method thereof with 3D pearl effect |
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