CN210679514U - Two-sided tectorial membrane compression injection mold - Google Patents
Two-sided tectorial membrane compression injection mold Download PDFInfo
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- CN210679514U CN210679514U CN201921689967.XU CN201921689967U CN210679514U CN 210679514 U CN210679514 U CN 210679514U CN 201921689967 U CN201921689967 U CN 201921689967U CN 210679514 U CN210679514 U CN 210679514U
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- compression
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Abstract
The utility model discloses a two-sided tectorial membrane compression injection mold, including front mould and back mould, the front mould includes the surface film reference column on sprue, front mould frame bottom plate, front mould frame, location guide pin bushing, front mould benevolence and the front mould benevolence. The back mould includes interior surface film reference column on back die carrier bottom plate, square iron, thimble fixed plate, thimble guide arm, thimble spring, thimble, compression board, compression piece, compression spring, compression guide pillar, back die carrier, the back mould benevolence, location guide pillar and the back mould benevolence, the utility model discloses can satisfy product structure requirement and reliability test, can reduce product cost's new design again.
Description
Technical Field
The utility model relates to a 3C product backshell preparation, especially a two-sided tectorial membrane compression injection mold.
Background
The basically popular material of present smart mobile phone back cover is composite board, and 3D composite board back cover needs high-pressure thermoforming, can make two sides or four sides arc and cooperate the complete machine molding, and the appearance degree of freedom is big, and its main process flow is: composite board → silk screen printing → UV transfer printing → electroplating → spraying → cutting and stretching → high pressure molding → curtain coating → CNC → full inspection packaging.
At present, a single IML process is adopted, the thickness of glue is required to be 1.2mm or more, the difficulty of injection molding is caused by the excessively thin thickness of the glue, the color of the thin part is changed, and the thin part cannot bear cold shock and a drop test. The thickness of the back cover of most mobile phones is 0.60-0.80 mm, and the requirement of the thickness cannot be met by an independent IML process.
At present, the surface hardness of the back cover of the smartphone, which is subjected to common injection molding, is insufficient, ball drop and drop hammer tests are not enough, and if a modified raw material product is adopted to meet the hardness requirement, the product is too brittle, and the reliability test of the product cannot be met. The composite board has the problems of large processing technology, low material utilization rate, large CNC processing amount, low yield, high cost and the like.
Based on the above series of problems, the following technical solutions have been developed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the aforesaid not enough, provide a two-sided tectorial membrane compression injection mold, can satisfy product structural requirement and reliability test, can reduce product cost's new design again.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is:
a double-faced film-coated compression injection mold comprises a front mold and a rear mold, wherein the front mold comprises a main runner, a front mold frame base plate, a front mold frame, a positioning guide sleeve, a front mold core and an outer surface film positioning column installed on the front mold core, the main runner, the front mold frame base plate, the front mold frame and the front mold core are fixed together through screws, the positioning guide sleeve is embedded on the front mold frame, the outer surface film positioning column is embedded on the front mold core, the rear mold comprises a rear mold frame base plate, square iron, a thimble fixing plate, a thimble guide rod, a thimble spring, a thimble, a compression plate, a compression block, a compression spring, a compression guide column, a rear mold frame, a rear mold core, a positioning guide column and an inner surface film positioning column installed on the rear mold core, the rear mold frame base, the square iron and the compression plate are fixed together through screws, the compression guide column is clamped, and centre guide rod and centre are accompany to two centre fixed plates, accompany compression spring and location guide pillar between compression plate and the back mould frame, have certain clearance in the middle of compression plate and the back mould frame, and compression plate and compression piece pass through the screw fixation together, have centre spring in the middle of centre fixed plate and the back mould frame, and back die carrier and back mould benevolence pass through the screw fixation together, and the back mould benevolence is inlayed and is had interior surface membrane reference column.
Furthermore, when the front mold and the rear mold are opened, the outer surface film is placed on the positioning column of the front mold core, and the inner surface film is placed on the positioning column of the rear mold core.
Furthermore, the surface hardness of the outer surface film is high, and the film can be coated and injected after surface treatment according to appearance requirements.
Furthermore, the inner surface film has a texture effect, and can be subjected to surface treatment according to appearance requirements and then be coated with a film for injection molding.
Furthermore, the front die and the rear die can ensure the relative position degree of the front film and the rear film through the mutual matching of the front die positioning guide sleeve and the rear die positioning guide pillar in the die assembling process.
Furthermore, add the injection plastic layer after front mould and back mould compound die are accomplished in order to increase pressure, overcome the elasticity of the compression spring in the middle of compression board and the back die carrier, further drive the compression piece compression front and back mould benevolence inner cavity product thickness.
Further, after the pressure maintaining, cooling and shaping of the die are completed, the die is opened, and the ejector pin fixing plate is limited and transmitted to the ejector pins to eject and discharge the product in the process of retreating the rear die.
The utility model discloses with prior art contrast beneficial effect be:
the device combines compression injection molding and IML processes, an outer surface film and an inner surface film are respectively attached to a front mold core and a rear mold core, then molds are closed to inject plastic, a rear pressing template pushes a pressing module to press the thickness of a product to a desired thickness after the injection of the plastic, and the product is separated and taken out after pressure maintaining, cooling and shaping are completed.
Because the surface of the product is provided with a layer of reinforced film, the surface hardness can reach 4H-5H, the inner surface film can be pasted to obtain the desired texture, the thickness limit of the product in the IML process can be reduced through the compression injection molding process, and the relatively thin product thickness can be obtained.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a front mold according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a rear mold structure according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of the mold closing operation according to the embodiment of the present invention;
FIG. 4 is a schematic diagram of the mold explosion structure according to an embodiment of the present invention;
wherein, 1 a main runner; 2, a front mould frame bottom plate; 3, front mould frame; 4, positioning a guide sleeve; 5, a front mold core; 6 outer surface film positioning columns; 7, a rear die carrier bottom plate; 8, square iron; 9 a thimble fixing plate; 10, a thimble guide rod; 11 a thimble spring; 12, a thimble; 13 compressing the plate; 14 compressing the block; 15 compressing the spring; 16 compressing the guide pillar; 17, a rear mould frame; 18 rear mold core; 19 positioning the guide post; 20 inner surface membrane positioning column
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model provides a two-sided tectorial membrane compression injection mold. The technical solution provided by the present invention will be explained in more detail with reference to fig. 1 to 4.
As shown in fig. 1, a double-sided film-coated compression injection mold comprises a front mold and a rear mold, wherein the front mold comprises a main runner 1, a front mold base plate 2, a front mold base 3, a positioning guide sleeve 4, a front mold core 5 and an outer surface film positioning column 6 on the front mold core, the main runner 1, the front mold base plate 2, the front mold base 3 and the front mold core 5 are provided with screw holes for connection, the four components can be fixed together through screws, the positioning guide sleeve 4 is embedded on the front mold base 3, and the outer surface film positioning column 6 is embedded on the front mold core 5.
As shown in fig. 2-3, the rear mold includes a rear mold base bottom plate 7, square iron 8, a thimble fixing plate 9, a thimble guide rod 10, a thimble spring 11, a thimble 12, a compression plate 13, a compression block 14, a compression spring 15, a compression guide post 16, a rear mold base 17, a rear mold core 18, a positioning guide post 19, and an inner surface film positioning post 20 on the rear mold core, screw holes for connection are provided on the rear mold base 7, the square iron 8, and the compression plate 13, and these three components are fixed together by screws, wherein a plurality of compression guide posts 16 are provided between the square iron 8 and the compression plate 13, and the compression guide posts facilitate the square iron 8 and the compression plate 13 to perform a guiding movement in a compression process, so that the square iron and the compression plate do not generate a left-right or up-down displacement, and the.
Two thimble fixed plates 9 are provided with screw holes, the screw holes are fixed together by screws, and a thimble guide rod 10 and a thimble 12 are clamped between the two thimble fixed plates 9, the thimble guide rod has a guiding function, so that the two thimble fixed plates are not displaced left and right or up and down when being pressed, a compression spring 15 and a positioning guide pillar 19 are clamped between a compression plate 13 and a rear die frame 17, in the pressing process, the positioning guide pillar is matched with the positioning guide sleeve, so that square iron and the compression plate are pressed, a certain gap is formed between the compression plate 13 and the rear die frame 17, the compression plate 13 and the compression block 14 are fixed together by screws, a thimble spring 11 is arranged between the thimble fixed plate 9 and the rear die frame 17, the rear die frame 17 and a rear die core 18 are fixed together by screws, and an inner surface film positioning column 20 is embedded on the rear die core 18.
As shown in fig. 4, in the process of closing the front and rear films, the front and rear films are matched with each other by the front mold positioning guide sleeve 4 and the rear mold positioning guide post 19 to ensure the relative position degree of the front and rear films, after the front mold core 5 and the rear mold core 17 are contacted and matched, plastic is injected through the main runner 1, pressure can be increased after injection molding is completed, the elasticity of the compression spring 15 between the compression plate 13 and the rear mold frame 17 is overcome, the compression block 14 is further driven to compress the thickness of the product in the front and rear mold cores, after pressure maintaining, cooling and shaping are completed, the mold is opened, and the product is ejected and discharged by limiting the thimble fixing plate 9 and transmitting the product to the thimble 12.
The working process of the present invention will be described in detail below:
opening the mould, placing the outer surface film on the positioning column 6 of the front mould core, and placing the inner surface film on the positioning column 20 of the rear mould core;
the front and rear molds are closed under the pushing of an injection molding machine, and then plastic is injected into the cavity through the main runner 1;
after the glue injection is finished, the compression plate 13 pushes the compression block 14 to press the thickness of the product to the desired thickness;
after the pressure maintaining, cooling and shaping are completed, the mold is opened, and the ejector pin fixing plate 9 is limited and transmitted to the ejector pin 12 to eject and discharge the product in the process of retreating the rear mold.
And (5) performing a curtain coating process on the surface of the product after injection molding, and performing film coating, spraying and CNC on an inner cavity to obtain a finished product.
The device combines compression injection molding and IML processes, an outer surface film and an inner surface film are respectively attached to a front mold core and a rear mold core, then molds are closed to inject plastic, a rear pressing template pushes a pressing module to press the thickness of a product to a desired thickness after the injection of the plastic, and the product is separated and taken out after pressure maintaining, cooling and shaping are completed.
Because the surface of the product is provided with a layer of reinforced film, the surface hardness can reach 4H-5H, the inner surface film can be pasted to obtain the desired texture, the thickness limit of the product in the IML process can be reduced through the compression injection molding process, and the relatively thin product thickness can be obtained.
Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is only the specific implementation manner of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is familiar with the technical scope of the present invention, and according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides a two-sided tectorial membrane compression injection mold, includes front mould and back mould, its characterized in that: the front mould comprises a main runner (1), a front mould frame bottom plate (2), a front mould frame (3), a positioning guide sleeve (4), a front mould core (5) and an outer surface film positioning column (6) arranged on the front mould core (5), the main runner (1), the front mould frame bottom plate (2), the front mould frame (3) and the front mould core (5) are fixed together through screws, the positioning guide sleeve (4) is embedded on the front mould frame (3), the outer surface film positioning column (6) is embedded on the front mould core (5), the rear mould comprises a rear mould frame bottom plate (7), square iron (8), a thimble fixing plate (9), a thimble guide rod (10), a thimble spring (11), a thimble (12), a compression plate (13), a compression block (14), a compression spring (15), a compression guide pillar (16), a rear mould frame (17), a rear mould core (18), a positioning guide pillar (19) and an inner surface film positioning column (20) arranged on the rear mould core (18, rear die carrier bottom plate (7), square iron (8) and compression plate (13) pass through the fix with screw and are in the same place, wherein press guide pillar (16) are pressed from both sides in the middle of square iron (8) and compression plate (13), two thimble fixed plate (9) pass through the fix with screw and are in the same place, and centre guide pole (10) and thimble (12) are pressed from both sides in the middle of two thimble fixed plate (9), press spring (15) and location guide pillar (19) are pressed from both sides in the middle of compression plate (13) and rear die carrier (17), it is gapped in the middle of compression plate (13) and rear die carrier (17), compression plate (13) and compression piece (14) pass through the fix with screw and are in the same place, there are thimble spring (11) in the middle of thimble fixed plate (9) and rear die carrier (17), rear die carrier (17) and rear die core (18) pass through the fix with screw and are in the.
2. The double-sided film-covered compression injection mold according to claim 1, characterized in that: when the front mold and the rear mold are opened, the outer surface film is placed on the positioning column of the front mold core (5), and the inner surface film is placed on the positioning column of the rear mold core (18).
3. The double-sided film-covered compression injection mold according to claim 2, characterized in that: the surface hardness of the outer surface film is high, and the film can be coated and injected after surface treatment according to appearance requirements.
4. The double-sided film-covered compression injection mold according to claim 2, characterized in that: the inner surface film has a texture effect, and can be coated with a film for injection molding after surface treatment according to appearance requirements.
5. The double-sided film-covered compression injection mold according to claim 1, characterized in that: and in the die assembly process of the front die and the rear die, the relative position degree of the front film and the rear film is ensured through the mutual matching of the front die positioning guide sleeve (4) and the rear die positioning guide pillar (19).
6. The double-sided film-covered compression injection mold according to claim 1, characterized in that: after the front mold and the rear mold are closed, an injection plastic layer is additionally arranged to increase pressure, the elasticity of a compression spring (15) between a compression plate (13) and a rear mold frame (17) is overcome, and a compression block (14) is further driven to compress the thickness of the cavity product in the front mold core (5) and the rear mold core (18).
7. The double-sided film-covered compression injection mold according to claim 1, characterized in that: after the pressure maintaining, cooling and shaping of the die are completed, the die is opened, and the ejector pin fixing plate (9) is limited and transmitted to the ejector pin (12) to eject and discharge the product in the process of retreating the rear die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921689967.XU CN210679514U (en) | 2019-10-11 | 2019-10-11 | Two-sided tectorial membrane compression injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921689967.XU CN210679514U (en) | 2019-10-11 | 2019-10-11 | Two-sided tectorial membrane compression injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210679514U true CN210679514U (en) | 2020-06-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921689967.XU Expired - Fee Related CN210679514U (en) | 2019-10-11 | 2019-10-11 | Two-sided tectorial membrane compression injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210679514U (en) |
-
2019
- 2019-10-11 CN CN201921689967.XU patent/CN210679514U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210706 Address after: 213000 1668 Huacheng Road, Jintan District, Changzhou, Jiangsu. Patentee after: Changzhou chengga Precision Technology Co.,Ltd. Address before: 523000 factory building D, Lianping village, Dalingshan Town, Dongguan City, Guangdong Province Patentee before: Dongguan chengga Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200605 Termination date: 20211011 |
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| CF01 | Termination of patent right due to non-payment of annual fee |