CN216804206U - New forms of energy high temperature multiple metal insert in-mold injection mold - Google Patents
New forms of energy high temperature multiple metal insert in-mold injection mold Download PDFInfo
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- CN216804206U CN216804206U CN202220204019.8U CN202220204019U CN216804206U CN 216804206 U CN216804206 U CN 216804206U CN 202220204019 U CN202220204019 U CN 202220204019U CN 216804206 U CN216804206 U CN 216804206U
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Abstract
The utility model provides a new-energy high-temperature multiple-metal insert in-mold injection mold, which comprises a front mold component, a rear mold component and a mold core component, wherein the mold core component comprises a front mold core plate fixed on the front mold component and a rear mold core plate fixed on the rear mold component; the front mold core plate is provided with a plurality of pouring holes distributed at different positions so that the injection molding liquid is injected into the injection molding cavity at different positions; and a plurality of cooling channels distributed at different positions are arranged in the front core plate and/or the rear core plate. The injection molding of the PPS + 40% glass fiber product with multiple inserts can be realized.
Description
Technical Field
The utility model relates to the field of in-mold injection molding of metal inserts, in particular to an in-mold injection mold for new energy high-temperature multiple metal inserts.
Background
The product 1 shown in figure 1 is PPS + 40% glass fiber, belongs to a post-crystallization material, and is required to be placed with a plurality of metal inserts with different specifications when the temperature of a forming die reaches above 120-150 ℃. The medial surface of product 1 needs to have very coarse roughness to adhere to epoxy, and the lateral surface has mounting structure such as complicated back-off, and product structure is complicated, great and the shape is changeable, leads to the product to fill the back and warp easily, and traditional injection mold can't reach its requirement. The mold structure needs to be redesigned to realize stable injection molding production.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a new energy high-temperature multiple-metal insert in-mold injection mold for solving the problems.
In order to achieve the purpose, the technical scheme provided by the utility model is as follows:
the new-energy high-temperature multi-metal insert in-mold injection mold comprises a front mold assembly, a rear mold assembly and a mold core assembly, wherein the mold core assembly comprises a front mold core plate fixed on the front mold assembly and a rear mold core plate fixed on the rear mold assembly, and the front mold core plate and the rear mold core plate are closed by closing the front mold assembly and the rear mold assembly to jointly enclose to form an injection molding cavity; the front mold core plate is provided with a plurality of pouring holes distributed at different positions so that injection molding liquid can be injected into the injection molding cavity at different positions; and a plurality of cooling channels distributed at different positions are arranged in the front core plate and/or the rear core plate.
Furthermore, a forming column extending into the injection molding cavity is inserted into the front mold core plate and/or the rear mold core plate.
Further, a forming column inserted on the front mold core plate is defined as a front forming column, and the front forming column is directly fixed on the front mold core plate.
Further, a forming column inserted on the rear mold core plate is defined as a rear forming column, and the rear end of the rear forming column penetrates through the ejector pin movable plate of the rear mold assembly and is fixed on the fixed base of the rear mold assembly.
Furthermore, a large inclined top is inserted into the rear mold core plate, the front end of the large inclined top is a plane and extends into the injection molding cavity, and the rear end of the large inclined top is connected to the ejector pin movable plate of the rear mold assembly.
Furthermore, an oil storage tank is also sunken in the side surface of the large inclined top.
Through the technical scheme provided by the utility model, the method has the following beneficial effects:
the in-mold injection mold is provided with a plurality of cooling channels, and can perform pre-deformation treatment on a product by locally controlling the difference of temperature (namely, controlling the temperature difference of different cooling channels); and meanwhile, a plurality of pouring holes are arranged, and a proper pouring point can be found out through repeated analysis of mold flow (Moldflow) simulation so as to reinforce the requirement of the product on deformation prevention. Thereby obtaining stable injection molding and effectively preventing the product from deforming after injection molding.
Drawings
FIG. 1 is a schematic structural diagram of a product of the prior art;
FIG. 2 is a schematic partially exploded view of an in-mold injection mold according to an embodiment;
FIG. 3 is an exploded view of a portion of the core assembly of the exemplary embodiment;
FIG. 4 is a sectional view showing a core assembly in the embodiment;
FIG. 5 is a schematic perspective view of a front core plate in an embodiment;
FIG. 6 is a cross-sectional view of a front core plate in an embodiment;
FIG. 7 is a schematic perspective view of a rear core plate in the embodiment;
FIG. 8 is a cross-sectional view of a rear core plate in an embodiment;
fig. 9 is a schematic structural view of one of the large pitched roofs in the embodiment.
Detailed Description
To further illustrate the various embodiments, the utility model provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the utility model and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The utility model will now be further described with reference to the accompanying drawings and detailed description.
Referring to fig. 2 to 9, the present embodiment provides a new energy high temperature multiple metal insert in-mold injection mold, including a front mold assembly 10, a rear mold assembly 20 and a mold core assembly 30, where the mold core assembly 30 includes a front mold core plate 31 fixed on the front mold assembly 10 and a rear mold core plate 32 fixed on the rear mold assembly 20, and the mold closing of the front mold assembly 10 and the rear mold assembly 20 causes the front mold core plate 31 and the rear mold core plate 32 to cover and jointly enclose an injection cavity 301.
The front mold core plate 31 is provided with a plurality of pouring holes distributed at different positions so that the injection molding liquid is injected into the injection molding cavity 301 at different positions; specifically, as shown in fig. 5 and 6, five pouring holes, namely a first pouring hole 311, a second pouring hole 312, a third pouring hole 313, a fourth pouring hole 314 and a fifth pouring hole 315, are formed in the front core plate 31.
A plurality of cooling channels distributed at different positions are arranged in the front core plate 31 and the rear core plate 32. As shown in fig. 6, five cooling channels are provided in the front core plate 31, namely, a first front cooling channel 3101, a second front cooling channel 3102, a third front cooling channel 3103, a fourth front cooling channel 3104, and a fifth front cooling channel 3105; the rear core plate 32 is provided with six cooling channels, as shown in fig. 8, which are a first rear cooling channel 321, a second rear cooling channel 322, a third front and rear cooling channel 323, a fourth rear cooling channel 324, a fifth rear cooling channel 325 and a sixth rear cooling channel 326. The position and the structure of each cooling channel are different, and the layout is specifically carried out according to the shape of the injection molding cavity.
Of course, in other embodiments, the cooling passages may be provided only in the front core plate 31 or only in the rear core plate 32.
Meanwhile, based on the above described new energy high-temperature in-mold injection mold for multiple metal inserts, the present embodiment further provides a new energy high-temperature in-mold injection analysis method for multiple metal inserts, which includes the following steps:
a1, providing the new-energy high-temperature in-mold injection mold for the multiple metal inserts, and pre-embedding the metal inserts into the injection molding cavity 301 by pre-embedding equipment.
The metal insert (such as a nut) is embedded by adopting special embedding equipment, so that the die crush caused by artificially missing or misplacing the nut is avoided. And the defects that the plastic is carbonized, scorched and yellowed in the screw rod due to too long time when the nut is manually placed are also avoided. Meanwhile, the high risk of body scalding caused by high temperature of nut placing is avoided.
And A2, injecting injection liquid, controlling the injection liquid to be injected into different pouring holes of the front mold core plate 31, and performing mold flow simulation analysis.
Specifically, the different gate holes may be single gate holes at different positions (e.g., one gate hole is used for injection at a time, e.g., the first gate hole 311 is used for injection at a time, and the other gate holes are blocked); or a plurality of gate holes combined in different numbers and different positions, for example, two or more gate holes are used for simultaneous injection at a time, for example, the first gate hole 311 and the second gate hole 312 are used for injection at a time, and the rest gate holes are blocked; or the first pouring hole 311, the third pouring hole 313 and the fifth pouring hole 315 are used for pouring once, and the rest pouring holes are blocked; and so on.
A3, respectively injecting cooling liquid into a plurality of cooling channels at different positions in the front mold core plate 31 and the rear mold core plate 32 during solidification molding, realizing local cooling, and respectively controlling the cooling temperature of the plurality of cooling channels; i.e. the cooling temperature at different locations can be controlled individually and after solidification the product 1 as shown in fig. 1 is obtained.
Specifically, the cooling temperature difference at different positions is a local temperature difference.
And A4, repeating the steps A1 to A3 to obtain products prepared under different combination parameters (namely the combination of the position of the pouring hole and the local temperature difference), confirming the deformation degree of the products, and obtaining the optimal combination parameter of the position of the pouring hole and the local temperature difference.
For example, the first pouring hole 311, the third pouring hole 313 and the fifth pouring hole 315 are used for simultaneous pouring, and the temperature of the cooling channel corresponding to the end part of the product is about 5 ℃ higher than that of the cooling channel corresponding to the middle part of the product during solidification, which is an optimal combination parameter.
Specifically, performing simulation analysis on the mold flow to obtain an optimal pouring hole, wherein the optimal pouring hole can be a pouring hole for injection; the plurality of inlet holes may be simultaneously injected, and the above example is preferable when the first inlet hole 311, the third inlet hole 313, and the fifth inlet hole 315 are simultaneously injected.
The method adopts the difference of local control temperature (namely, the temperature difference of different cooling channels is controlled) aiming at the deformation of the product to carry out pre-deformation treatment on the product; meanwhile, through repeated analysis of mold flow (Moldflow) simulation, a proper pouring point is found out to reinforce the requirement of preventing the product from deforming. Thereby obtaining stable injection molding and effectively preventing the product from deforming after injection molding.
Further, in this embodiment, forming posts extending into the injection cavity 301 are further inserted into the front core plate 31 and the rear core plate 32 to form structures such as grooves. And products with different detail structures can be obtained by replacing different types of forming columns, such as different shapes, sizes and the like of grooves of the products.
Specifically, the forming post inserted on the front core plate 31 is defined as a front forming post 36, and the front forming post 36 is directly fixed on the front core plate 31. A rear molding column 33 is defined as a molding column inserted on the rear mold core plate 32, and a rear end of the rear molding column 33 passes through the ejector pin movable plate 22 of the rear mold assembly 20 and is fixed on the fixed base 21 of the rear mold assembly 20. Thus, the front forming column 36 and the rear forming column 33 can be well fixed, and the fixing structure is simple and easy to realize. Of course, in other embodiments, the fixing manner of the forming column is not limited thereto. Or the front core plate 31 is provided with a forming column separately, or the rear core plate 32 is provided with a forming column separately; the layout is specifically determined according to the actual structure of the product.
Further, in this embodiment, a large inclined top 34 is further inserted into the rear mold core plate 32, a front end 341 of the large inclined top 34 is a plane and extends into the injection molding cavity 301, a rear end of the large inclined top 34 is connected to the ejector pin movable plate 22 of the rear mold assembly 20, and a product is ejected by driving of the ejector pin movable plate 22. By adopting the ejection structure of the large lifter 34, the contact area between the front end 341 of the large lifter 34 and the product is large, the stress is more uniform when the product is ejected, the ejection is more stable, and the product is prevented from being ejected through by a small ejector pin.
Still further, an oil storage groove (not shown) is recessed in the side surface of the large lifter 34, and can be used for storing oil, moistening the lifter and bearing high temperature, so that the large lifter 34 performs smooth ejection movement.
Further, in the present embodiment, in the conventional structure of the injection mold of the present application, the positioning tolerance of the mold liner matching surface and the mold core metal insert is less than 0.02 mm. The structure that ejector pin, guide block etc. realized relative slip all adopts self-lubricating accessory, if adopts self-lubricating cover etc.. The adhesive sealing surface of the product has a fitting tolerance of less than 0.005mm, and the exhaust depth is less than 0.008 mm. The quality of the injection molding product is further improved by controlling the dimensional precision.
While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (6)
1. The new-energy high-temperature multi-metal insert in-mold injection mold comprises a front mold assembly, a rear mold assembly and a mold core assembly, wherein the mold core assembly comprises a front mold core plate fixed on the front mold assembly and a rear mold core plate fixed on the rear mold assembly, and the front mold core plate and the rear mold core plate are closed by closing the front mold assembly and the rear mold assembly to jointly enclose to form an injection molding cavity; the method is characterized in that: the front mold core plate is provided with a plurality of pouring holes distributed at different positions so that injection molding liquid can be injected into the injection molding cavity at different positions; and a plurality of cooling channels distributed at different positions are arranged in the front core plate and/or the rear core plate.
2. The new energy high-temperature multi-metal insert in-mold injection mold according to claim 1, characterized in that: and a forming column extending into the injection molding cavity is also inserted in the front mold core plate and/or the rear mold core plate.
3. The new energy high-temperature multi-metal insert in-mold injection mold according to claim 2, characterized in that: and defining the forming column inserted on the front mold core plate as a front forming column, wherein the front forming column is directly fixed on the front mold core plate.
4. The new energy high-temperature multiple metal insert in-mold injection mold according to claim 2, characterized in that: and defining the molding column inserted on the rear mold core plate as a rear molding column, wherein the rear end of the rear molding column penetrates through the ejector pin movable plate of the rear mold assembly and is fixed on the fixed base of the rear mold assembly.
5. The new energy high-temperature multi-metal insert in-mold injection mold according to claim 1, characterized in that: the rear mold core plate is also inserted with a large inclined top, the front end of the large inclined top is a plane and extends into the injection molding cavity, and the rear end of the large inclined top is connected to the ejector pin movable plate of the rear mold assembly.
6. The new energy high-temperature multi-metal insert in-mold injection mold according to claim 5, characterized in that: the side surface of the large inclined top is also sunken with an oil storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220204019.8U CN216804206U (en) | 2022-01-25 | 2022-01-25 | New forms of energy high temperature multiple metal insert in-mold injection mold |
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| CN202220204019.8U CN216804206U (en) | 2022-01-25 | 2022-01-25 | New forms of energy high temperature multiple metal insert in-mold injection mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114261056A (en) * | 2022-01-25 | 2022-04-01 | 厦门市超日精密模具有限公司 | New energy high-temperature multiple-metal insert in-mold injection mold and injection analysis method |
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2022
- 2022-01-25 CN CN202220204019.8U patent/CN216804206U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114261056A (en) * | 2022-01-25 | 2022-04-01 | 厦门市超日精密模具有限公司 | New energy high-temperature multiple-metal insert in-mold injection mold and injection analysis method |
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Address after: No.2-8, Gulong East Road, phase II, Shitou, Xiang'an Industrial Park, Maxiang Town, Xiang'an District, Xiamen City, Fujian Province, 361000 Patentee after: Chaori (Xiamen) Technology Co.,Ltd. Address before: No.2-8, Gulong East Road, phase II, Shitou, Xiang'an Industrial Park, Maxiang Town, Xiang'an District, Xiamen City, Fujian Province, 361000 Patentee before: XIAMEN SURINI PRECISION MOULD CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |