CN107756734B - Four-station mold and injection molding method thereof - Google Patents

Four-station mold and injection molding method thereof Download PDF

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Publication number
CN107756734B
CN107756734B CN201710824291.XA CN201710824291A CN107756734B CN 107756734 B CN107756734 B CN 107756734B CN 201710824291 A CN201710824291 A CN 201710824291A CN 107756734 B CN107756734 B CN 107756734B
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China
Prior art keywords
station
die
movable
mold
plate
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CN201710824291.XA
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Chinese (zh)
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CN107756734A (en
Inventor
王诗健
朱文红
吴明康
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SHANGHAI DESHUHE METAL PRODUCTION CO Ltd
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SHANGHAI DESHUHE METAL PRODUCTION CO Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2602—Mould construction elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/4005—Ejector constructions; Ejector operating mechanisms

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

Abstract

The invention provides a four-station die which comprises a panel, a hot runner plate, a fixed die plate, a movable die plate, die feet and a bottom plate, wherein the hot runner plate, the fixed die plate, the movable die plate and the die feet are sequentially stacked between the panel and the bottom plate, a main positioning ring and an auxiliary positioning ring are arranged on the surface of the panel, and a feed inlet is formed in the hot runner plate. The invention can satisfy the requirement of more plastic pieces with two colors or more plastic pieces with two materials (3 colors or 3 materials are integrated) on the same set of mould, thereby reducing the workload of producing a set of bijective mould and a set of conventional mould to solve the problem through a set of mould, reducing the design and manufacturing cost of the mould, shortening the production period of plastic finished products, reducing the labor cost for installing the plastic pieces, and avoiding the plastic pieces from being unusable due to the falling of the parts because the whole product is integrated.

Description

Four-station mold and injection molding method thereof
Technical Field
The invention relates to a four-station mold and an injection molding method thereof, and belongs to the technical field of injection molding equipment.
Background
With the development of society, the requirements of people on the quality of life are continuously improved, the requirements of many products are not only satisfied with the basic functions of the products, but also pay more and more attention to additional functions such as appearance, use comfort and the like.
The decoration on many plastic parts is limited by the prior injection molding technology, can only meet the requirement of one more color or one more material at most, and other plastic parts are added, and after the plastic parts are produced into products through injection molding, the plastic parts are installed or embedded by manpower subsequently to achieve the effect of beauty or function.
The plastic part mounted later is easy to drop after being used for a long time, thereby influencing the beauty or the function of the product.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a four-station mold and an injection molding method thereof.
The invention is realized by the following technical scheme:
in a first aspect, the invention provides a four-station die, which comprises a panel, a hot runner plate, a fixed die plate, a movable die plate, die feet and a bottom plate, wherein the hot runner plate, the fixed die plate, the movable die plate and the die feet are sequentially stacked between the panel and the bottom plate, a main positioning ring and an auxiliary positioning ring are arranged on the surface of the panel, and a feed inlet is arranged in the hot runner plate.
As a preferred scheme, a fixed die first station, a fixed die second station, a fixed die third station and a fixed die fourth station are arranged in the fixed die plate.
Preferably, a movable mold first station, a movable mold second station, a movable mold third station and a movable mold fourth station are arranged in the movable mold plate.
Preferably, the first station and the second station of the movable mold, and the third station and the fourth station of the movable mold are provided with ejection devices.
Preferably, the side surface of the bottom plate is provided with a mold hanging strip, and the mold hanging strip extends upwards to the side surface of the fixed mold plate.
Preferably, the top of the panel is further provided with a heat insulation plate.
In a second aspect, the invention further provides an injection molding method based on the four-station mold, which includes the following steps:
mounting the four-station mold on an injection molding machine, so that the fixed mold first station is overlapped with the movable mold first station, the fixed mold second station is overlapped with the movable mold second station, the fixed mold third station is overlapped with the movable mold third station, the fixed mold fourth station is overlapped with the movable mold fourth station, and the fixed mold fourth station and the movable mold fourth station are both downward;
injecting a main injection molding material from a main positioning ring, injecting a pigment or an auxiliary injection molding material from a feed inlet, and obtaining a primary blank body in a cavity formed by a fixed die first station and a movable die first station;
fixing a fixed die plate, rotating a movable die plate, driving the primary blank to be transferred into a cavity formed by a first station of the movable die and a second station of the fixed die from the first station of the movable die, and coloring or feeding to obtain a secondary blank;
fixing the fixed die plate, continuously rotating the movable die plate, driving the secondary blank to be transferred into a cavity formed by the first station of the movable die and the third station of the fixed die from the first station of the movable die, and coloring or feeding to obtain a finished product;
and fixing the fixed die plate, continuously rotating the movable die plate, driving the secondary blank to rotate into a cavity formed by the first station of the movable die and the fourth station of the fixed die from the first station of the movable die, and ejecting a finished product by an ejection device.
Compared with the prior art, the invention has the following beneficial effects:
the invention can satisfy the requirement of more plastic pieces with two colors or more plastic pieces with two materials (3 colors or 3 materials are integrated) on the same set of mould, thereby reducing the workload of producing a set of bijection mould and a set of conventional mould to solve the problem through a set of mould, reducing the design and manufacturing cost of the mould, shortening the production period of plastic finished products, reducing the labor cost for installing the plastic pieces, and avoiding the plastic pieces from being unusable due to the falling of parts because the whole product is integrated;
because the stations are distributed by rotating in the four quadrants, the plastic part can be smoothly demoulded on the fourth station when injection molding is carried out, and extra time is not needed for demoulding.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural view of a four-station mold according to the present invention;
FIG. 2 is a cross-sectional view of the first and second stations of the four-station mold of the present invention;
FIG. 3 is a third, four-station cross-sectional view of the four-station mold of the present invention;
FIG. 4 is a schematic structural view of a fixed mold part of a four-station mold according to the present invention;
FIG. 5 is a top view of FIG. 4;
FIG. 6 is a schematic view of the structure of the movable mold part of the four-station mold of the present invention;
FIG. 7 is a top view of FIG. 6;
in the figure: 1. a heat insulation plate; 2. a panel; 3. a hot runner plate; 4. fixing a template; 5. moving the template; 6. a mould leg; 7. a base plate; 8. hanging the mould strip; 9. a product outlet; 10. a main positioning ring; 11. auxiliary positioning rings; 12. a feed inlet; 13. an ejection device; 41. fixing a first station of the mold; 42. fixing a second station of the mold; 43. fixing a third station of the mold; 44. fixing a fourth station of the die; 51. a first station of a movable mold; 52. a second station of the movable mold; 53. a third station of the movable mold; 54. and a fourth station of the movable mold.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
As shown in fig. 1 to 7, the four-station mold provided by the invention comprises a panel 2, a hot runner plate 3, a fixed mold plate 4, a movable mold plate 5, mold feet 6 and a bottom plate 7, wherein the hot runner plate 3, the fixed mold plate 4, the movable mold plate 5 and the mold feet 6 are sequentially stacked between the panel 2 and the bottom plate 7, a main positioning ring 10 and an auxiliary positioning ring 11 are arranged on the surface of the panel 2, a feed inlet 12 is arranged in the hot runner plate 3, and a product outlet 9 is arranged on the side surface of the four-station mold.
The fixed die plate 4 is internally provided with a fixed die first station 41, a fixed die second station 42, a fixed die third station 43 and a fixed die fourth station 44.
The movable mould plate 5 is internally provided with a movable mould first station 51, a movable mould second station 52, a movable mould third station 53 and a movable mould fourth station 54.
The ejector devices 13 are arranged on the movable mold first station 41, the movable mold second station 42, the movable mold third station 43 and the movable mold fourth station 44. The ejection device 13 is conventional in the mold art and will not be described in detail.
The side of the bottom plate 7 is provided with a mould hanging strip 8, and the mould hanging strip 8 extends upwards to the side of the fixed mould plate 4.
The top of the panel 2 is also provided with a heat insulation board 1.
The invention provides an injection molding method based on the four-station mold, which comprises the following steps:
mounting the four-station mold on an injection molding machine, so that the fixed mold first station is superposed with the movable mold first station, the fixed mold second station is superposed with the movable mold second station, the fixed mold third station is superposed with the movable mold third station, the fixed mold fourth station is superposed with the movable mold fourth station, and the fixed mold fourth station and the movable mold fourth station are both downward in direction, namely, the four-station mold is transversely placed;
injecting a main injection molding material from a main positioning ring, injecting a pigment or an auxiliary injection molding material from a feed inlet, and obtaining a primary blank body in a cavity formed by a fixed die first station and a movable die first station;
fixing a fixed die plate, rotating a movable die plate, enabling a first station of a movable die to coincide with a second station of the fixed die, driving the primary blank to be transferred into a cavity formed by the first station of the movable die and the second station of the fixed die by the first station of the movable die, and coloring or feeding to obtain a secondary blank;
fixing the fixed die plate, continuously rotating the movable die plate, enabling the first station of the movable die to coincide with the third station of the fixed die, driving the secondary blank to be transferred into a cavity formed by the first station of the movable die and the third station of the fixed die by the first station of the movable die, and coloring or feeding to obtain a finished product;
and fixing the fixed die plate, continuously rotating the movable die plate, enabling the first station of the movable die to coincide with the fourth station of the fixed die, forming a product outlet on the side surface of the four-station die, driving the secondary blank to rotate into a cavity formed by the first station of the movable die and the fourth station of the fixed die from the first station of the movable die, and ejecting a finished product by an ejection device.
When the first station of the movable mold rotates, the second station of the movable mold is also overlapped with the first station of the fixed mold, the second station of the fixed mold, the third station of the fixed mold and the fourth station of the fixed mold in sequence, and the injection molding of the next product is continuously finished; by analogy, the injection molding of subsequent products can be completed by the third station of the movable mold and the fourth station of the movable mold.
Compared with the prior art, the invention has the following beneficial effects:
the invention can satisfy the requirement of more plastic pieces with two colors or more plastic pieces with two materials (3 colors or 3 materials are integrated) on the same set of mould, thereby reducing the workload of producing a set of bijection mould and a set of conventional mould to solve the problem through a set of mould, reducing the design and manufacturing cost of the mould, shortening the production period of plastic finished products, reducing the labor cost for installing the plastic pieces, and avoiding the plastic pieces from being unusable due to the falling of parts because the whole product is integrated;
because the stations are distributed by rotating in the four quadrants, the plastic part can be smoothly demoulded on the fourth station when injection molding is carried out, and extra time is not needed for demoulding.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.

Claims (3)

1. A four-station die is characterized by comprising a panel, a hot runner plate, a fixed die plate, a movable die plate, die feet and a bottom plate, wherein the hot runner plate, the fixed die plate, the movable die plate and the die feet are sequentially stacked between the panel and the bottom plate; a fixed die first station, a fixed die second station, a fixed die third station and a fixed die fourth station are arranged in the fixed die plate; a movable die first station, a movable die second station, a movable die third station and a movable die fourth station are arranged in the movable die plate; the first station and the second station of the movable die, and the third station and the fourth station of the movable die are provided with ejection devices;
when the four-station mould is used for injection moulding,
mounting the four-station mold on an injection molding machine, so that the fixed mold first station is overlapped with the movable mold first station, the fixed mold second station is overlapped with the movable mold second station, the fixed mold third station is overlapped with the movable mold third station, the fixed mold fourth station is overlapped with the movable mold fourth station, and the fixed mold fourth station and the movable mold fourth station are both downward;
injecting a main injection molding material from a main positioning ring, injecting a pigment or an auxiliary injection molding material from a feed inlet, and obtaining a primary blank body in a cavity formed by a fixed die first station and a movable die first station;
fixing a fixed die plate, rotating a movable die plate, driving the primary blank to be transferred into a cavity formed by a first station of the movable die and a second station of the fixed die from the first station of the movable die, and coloring or feeding to obtain a secondary blank;
fixing the fixed die plate, continuously rotating the movable die plate, driving the secondary blank to be transferred into a cavity formed by the first station of the movable die and the third station of the fixed die from the first station of the movable die, and coloring or feeding to obtain a finished product;
fixing the fixed die plate, continuously rotating the movable die plate, driving the secondary blank to rotate into a cavity formed by the first station of the movable die and the fourth station of the fixed die from the first station of the movable die, and ejecting a finished product by an ejection device;
when the first station of the movable mold rotates, the second station of the movable mold is also overlapped with the first station of the fixed mold, the second station of the fixed mold, the third station of the fixed mold and the fourth station of the fixed mold in sequence, and the injection molding of the next product is continuously finished; by analogy, the injection molding of subsequent products can be completed by the third station of the movable mold and the fourth station of the movable mold.
2. A four-station mould according to claim 1, wherein the side of the base plate is provided with mould hanging strips which extend up to the side of the fixed mould plate.
3. A four-station mold according to claim 1, wherein the top of the face plate is further provided with a heat insulating plate.
CN201710824291.XA 2017-09-13 2017-09-13 Four-station mold and injection molding method thereof Active CN107756734B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN107756734A CN107756734A (en) 2018-03-06
CN107756734B true CN107756734B (en) 2020-02-11

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0692095B2 (en) * 1988-11-25 1994-11-16 スタンレー電気株式会社 Molding method for multicolor molded products
CN102001151B (en) * 2010-10-18 2013-04-17 冠捷显示科技（厦门）有限公司 Multistation injection molding product production method and injection mold thereof
CN102069564B (en) * 2010-11-12 2013-12-04 中南大学 Rotary multi-station injection molding mould for manufacturing microfluidic chip
CN102059779A (en) * 2010-11-26 2011-05-18 毅昌金型（东莞）五金制品有限公司 Rotating laminated type injection mould and injection method using same

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