CN112659480B - Secondary compression mould of mobile phone rear cover belt crater - Google Patents
Secondary compression mould of mobile phone rear cover belt crater Download PDFInfo
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- CN112659480B CN112659480B CN202011483782.0A CN202011483782A CN112659480B CN 112659480 B CN112659480 B CN 112659480B CN 202011483782 A CN202011483782 A CN 202011483782A CN 112659480 B CN112659480 B CN 112659480B
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Abstract
The invention discloses a secondary compression mold for a volcanic vent of a rear cover of a mobile phone.A male mold plate is at least provided with a male mold core, the male mold plate is movably connected with the male mold core, and the bottom of the male mold core is fixed on a spring plate through a movable block; the top of the spring plate is provided with a first positioning pin, the first return pin penetrates through the male template, and a first gap is formed between the bottom surface of the first return pin and the top of the male template; a second ejector pin is arranged at the top of the second ejector pin plate, a camera mounting hole is formed in the core insert, a second movable ejector block is arranged at the bottom of the second ejector pin plate, and the second movable ejector block is movably connected with the lower fixing plate; and a second return pin is arranged on the second ejector plate, and a second gap is formed between the bottom of the second return pin and the top of the male template. The injection-molded mobile phone rear cover has good appearance, high matching degree with each component in the mobile phone, simpler injection mold structure, and can be used for producing a plurality of mobile phone covers at one time while facilitating subsequent maintenance, thereby greatly improving the production efficiency.
Description
Technical Field
The invention relates to a secondary compression mold for a volcanic vent on a rear cover of a mobile phone, and belongs to the technical field of mobile phone cover processing.
Background
An injection mold is a tool for producing plastic products and also a tool for giving the plastic products complete structure and precise dimensions. Injection molding is a process used in mass production of some parts having complex shapes. Specifically, the method comprises the steps of injecting molten plastic into a mold cavity from an injection molding machine at high pressure, and cooling and solidifying to obtain a formed product.
At present, glass products are widely applied to various aspects of society, but glass has the defects of poor congenital heat insulation, poor impact resistance, high processing difficulty, shape unicity and the like, so that the glass cannot be applied to many occasions. Optical plastic products are used as substitutes of glass products, have the advantages of high light transmission, light weight, weather resistance, impact resistance, easiness in molding, low cost and the like, and are generally used for substituting the glass products in the aspects of optical instruments, electronic industry and the like.
The 5G industry is continuously rising, the requirements of the communication industry on the mobile phone are higher and higher, the appearance and the durability of the mobile phone are higher and higher, and the rear cover area of the mobile phone occupies 1/2 of the sight line of the whole mobile phone. Then, how to mold a protruding structure like a crater on the rear cover of the mobile phone becomes a technical problem that the technical personnel in the injection mold field urgently need to solve.
Disclosure of Invention
The purpose is as follows: the invention provides a secondary compression mold for a mobile phone back cover with a crater, aiming at solving the problems of high processing difficulty of glass products and integral injection molding of a mobile phone back cover protruding structure and a camera position protruding structure in the prior art.
The technical scheme is as follows: in order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a secondary compression mold for a mobile phone rear cover with a crater is characterized in that pillow plates are arranged on the left side and the right side of a lower fixing plate, a first ejector plate, a second ejector plate, a third ejector plate and a fourth ejector plate are sequentially arranged between the two pillow plates from top to bottom, a middle plate is arranged on the pillow plates, a spring plate is arranged on the middle plate, a male mold plate is arranged on the spring plate, at least one male mold core is arranged on the male mold plate, the male mold plate is movably connected with the male mold core, and the bottom of the male mold core is fixed on the spring plate through a movable block; the top of the spring plate is provided with a first positioning pin, the first return pin penetrates through the male template, and a first gap is formed between the bottom surface of the first return pin and the top of the male template; a second ejector pin is arranged at the top of the second ejector pin plate, the second ejector pin sequentially penetrates through the first ejector pin plate, the middle plate, the spring plate, the male template and the male mold core, a camera mounting hole is formed in the male mold core, a second movable ejector block is arranged at the bottom of the second ejector pin plate, and the second movable ejector block is movably connected with the lower fixing plate; and a second return pin is arranged on the second ejector plate, and a second gap is formed between the bottom of the second return pin and the top of the male template.
As a preferred scheme, a first thimble is arranged at the top of the fourth thimble plate, the first thimble sequentially passes through the third thimble plate, the second thimble plate, the first thimble plate, the middle plate, the spring plate, the male template and the flow channel splicing block, a through hole is formed in the flow channel splicing block, a first movable ejector block is arranged at the bottom of the fourth thimble plate, and the first movable ejector block is movably connected with the lower fixing plate.
Preferably, the periphery of the core insert is provided with split blocks, one side of the core insert is provided with flow passage split blocks, and the core insert is movably connected with the split blocks and the flow passage split blocks.
As the preferred scheme, still include the master form, the master form is installed on the upper fixed plate, and the runner cover sinks in the master form.
Preferably, at least one side of the tiles is provided with a pressure plate.
Preferably, a cooling water channel is arranged in the male template.
Preferably, a cooling water channel is arranged in the spring plate.
As a preferred scheme, the side edge of the core insert is provided with a roller pin.
Preferably, a cooling water channel is arranged in the female die plate.
Has the advantages that: according to the secondary compression mold for the volcanic vent of the mobile phone rear cover, the mobile phone rear cover formed by injection molding is good in appearance, high in matching degree with each component in the mobile phone, simpler in structure, convenient for subsequent maintenance, capable of producing a plurality of mobile phone covers at one time and greatly improving the production efficiency.
Drawings
FIG. 1 is a schematic top sectional view of a male form.
Fig. 2 isbase:Sub>A schematic sectional view of the male mold portionbase:Sub>A-base:Sub>A.
FIG. 3 is a schematic cross-sectional view of the male mold portion B-B.
FIG. 4 is a schematic cross-sectional view of the male mold portion C-C.
FIG. 5 is a schematic three-dimensional structure of a male mold portion.
FIG. 6 is a schematic structural view of a female mold portion.
Fig. 7 is a schematic view of the structure of the top of the core plate.
Detailed Description
The present invention will be further described with reference to the following examples.
As shown in fig. 1, a secondary compression mold for a mobile phone rear cover with a crater, as shown in fig. 5, pillow plates 2 are arranged on the left and right sides of a lower fixing plate 1, a first ejector plate 3, a second ejector plate 4, a third ejector plate 5, and a fourth ejector plate 6 are sequentially arranged between the two pillow plates 2 from top to bottom, a middle plate 7 is mounted on the pillow plates 2, a spring plate 8 is mounted on the middle plate 7, and a male mold plate 9 is mounted on the spring plate 8, as shown in fig. 6, a female mold plate 10 is mounted on an upper fixing plate 11, and a sprue bush 12 sinks in the female mold plate 10, thereby reducing the material temperature after plastic particles are melted and reducing the cooling temperature thereof.
As shown in fig. 7, two core inserts 12 are disposed on the core plate 9, the segments 13 are disposed on the periphery of the core inserts 12, the segments on at least one side are disposed as inclined pressing plates, the flow passage segments 14 are disposed between the core inserts, and the core inserts 12 are movably connected with the segments 13 and the flow passage segments 14. The peripheral splicing blocks are used for being matched with the male die core to position and move, and the structures of the flow passage splicing blocks and the inclined pressing plate are used for guiding injection molding, so that the uniform thickness of a product is ensured.
As shown in fig. 2, the bottom of the core insert 12 is fixed on the spring plate 8 through a movable block; a first positioning pin 15 is arranged at the top of the spring plate 8, the first return pin 15 penetrates through the male template 13, and a first gap is arranged between the bottom surface of the first return pin 15 and the top of the male template 9, and the gap is set to be 0.9mm in the embodiment; mould plastics after the compound die of public template and cavity board, cover shaping after a period behind the cell-phone, the board of moulding plastics continues to promote bottom plate 1, bottom plate 1 promotes medium plate 7 through support column 16 in proper order, the medium plate promotes spring board 8, the movable block of 12 bottoms of public mould benevolence is jacked up to spring board 8, with the distance in the first clearance of 12 upwards jack-ups in public mould benevolence, first locating pin 15 lock is died at public template 9 tops, spring board 8 stops to remove, accomplish the first compression to the whole profile of lid behind the cell-phone, the bellied crater structure of 0.9mm appears in the lid behind the whole cell-phone.
As shown in fig. 3, a first thimble 17 is arranged at the top of the fourth thimble plate 6, the first thimble 17 sequentially passes through the third thimble plate 5, the second thimble plate 4, the first thimble plate 2, the middle plate 7, the spring plate 8, the male mold plate 9 and the flow channel splicing block 14, and a through hole is formed in the flow channel splicing block 14, and the through hole is used for the first thimble 17 to extend out of the through hole to eject the rear cover of the mobile phone. And a first movable ejector block 18 is arranged at the bottom of the fourth ejector plate 6, and the first movable ejector block 18 is movably connected with the lower fixing plate 1. After the male template and the female template are opened, the electric injection molding machine controls the ejector rod to eject the first movable ejector block 18 upwards, the first ejector pins 17 extend upwards along with the four ejector pin plates, and the material belt on the runner splicing block 14 and the rear cover of the mobile phone are ejected out of the male template 9 together.
As shown in fig. 4, a second thimble 19 is arranged at the top of the second thimble plate 4, the second thimble 19 sequentially passes through the first thimble plate 2, the middle plate 7, the spring plate 8, the male mold 9 and the male mold core 12, a camera mounting hole is arranged on the male mold core 12, the camera mounting hole is used for the second thimble 19 to extend out of the second thimble mounting hole, a second movable ejector block 20 is arranged at the bottom of the second thimble plate 4, and the second movable ejector block 20 is movably connected with the lower fixing plate 1. A second return pin 21 is arranged on the second ejector plate, a second gap is arranged between the bottom of the second return pin 21 and the top of the male template 9, and the thickness of the gap is 0.6mm in the embodiment; after the male template and the female template are matched, injection molding is carried out, after the mobile phone rear cover is molded for a period of time, the electric injection molding machine controls the ejector rod to eject the second movable ejector block 20 upwards, the second ejector pin 19 upwards extends out of the distance of a second gap of the camera mounting hole along with the two ejector pin plates, the second return pin 21 is locked at the top of the male template 9, the second ejector pin 19 stops moving, the second compression of the molded surface of the edge of the camera mounting hole of the mobile phone rear cover is completed, and a 0.6mm convex crater structure appears at the edge of the camera mounting hole.
And a cooling water channel is arranged in the male template 12.
And a cooling water channel is arranged in the spring plate 8.
The side of the male die core is provided with a roller pin for movably connecting the male die core with the split blocks and the flow passage split blocks.
And a cooling water channel is arranged in the female die plate 10.
Example 1:
during injection molding, the male template and the female template are matched, and molten plastic particles flow into the runner splicing blocks and the cavity through the sprue bush to be subjected to injection molding, so that a molded mobile phone rear shell is obtained; when the molten plastic particles enter the cavity to be filled, the electric injection molding machine drives the spring plate to move, so that the mold core compresses the cavity, and meanwhile, the electric injection molding machine controls the forward movement amount of the ejector rod to drive the second ejector pin, so that the edge of the image head mounting hole is compressed again, and injection molding and pressure maintaining are carried out simultaneously. And after the injection molding is finished, the male template is opened, the mobile phone rear shell is ejected out by the first ejector pin, and the mechanical arm takes out the molded mobile phone rear shell, so that the whole process is finished.
Example 2:
the thickness of the large surface of the mobile phone rear shell produced by the die is 0.6mm, and the height of the crater is 1.2mm. At present, injection molding or molding local shrinkage verification cannot be realized in the industry, and the local thicker part is subjected to secondary compression design through experience of a compression mold, so that the appearance of a product is free of shrinkage.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (6)
1. The utility model provides a secondary compression mould of cell-phone back shroud crater which characterized in that: the left side and the right side of the lower fixed plate are provided with pillow plates, a first ejector plate, a second ejector plate, a third ejector plate and a fourth ejector plate are sequentially arranged between the two pillow plates from top to bottom, the middle plate is arranged on the pillow plates, the middle plate is provided with a spring plate, the spring plate is provided with a male template, the male template is at least provided with a male die core, the male template is movably connected with the male die core, and the bottom of the male die core is fixed on the spring plate through a movable block; the top of the spring plate is provided with a first return pin, the first return pin penetrates through the male template, and a first gap is formed between the bottom surface of the first return pin and the top of the male template; a second ejector pin is arranged at the top of the second ejector pin plate, the second ejector pin sequentially penetrates through the first ejector pin plate, the middle plate, the spring plate, the male template and the male mold core, a camera mounting hole is formed in the male mold core, a second movable ejector block is arranged at the bottom of the second ejector pin plate, and the second movable ejector block is movably connected with the lower fixing plate; a second return pin is arranged on the second ejector plate, and a second gap is formed between the bottom of the second return pin and the top of the male template;
a first ejector pin is arranged at the top of the fourth ejector pin plate, the first ejector pin sequentially passes through the third ejector pin plate, the second ejector pin plate, the first ejector pin plate, the middle plate, the spring plate, the male template and the runner splicing block, a through hole is formed in the runner splicing block, a first movable ejector block is arranged at the bottom of the fourth ejector pin plate, and the first movable ejector block is movably connected with the lower fixing plate;
the periphery of the male die core is provided with splicing blocks, one side of the male die core is provided with flow passage splicing blocks, and the male die core is movably connected with the splicing blocks and the flow passage splicing blocks;
still include female template, female template is installed on the fixed plate, and the sprue cover sinks in female template.
2. The secondary compression mold for the volcano of the mobile phone back cover tape as recited in claim 1, wherein: the split blocks on at least one side are arranged into inclined pressing plates.
3. The secondary compression mold for the volcano of the mobile phone back cover tape as recited in claim 1, wherein: and a cooling water channel is arranged in the male template.
4. The secondary compression mold for the volcano of the mobile phone back cover tape as recited in claim 1, wherein: and a cooling water channel is arranged in the spring plate.
5. The secondary compression mold for the volcano of the mobile phone back cover tape as recited in claim 1, wherein: the side of the core insert is provided with a roller pin.
6. The secondary compression mold for the volcano of the mobile phone back cover tape as recited in claim 1, wherein: and a cooling water channel is arranged in the female die plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011483782.0A CN112659480B (en) | 2020-12-16 | 2020-12-16 | Secondary compression mould of mobile phone rear cover belt crater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011483782.0A CN112659480B (en) | 2020-12-16 | 2020-12-16 | Secondary compression mould of mobile phone rear cover belt crater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112659480A CN112659480A (en) | 2021-04-16 |
| CN112659480B true CN112659480B (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011483782.0A Active CN112659480B (en) | 2020-12-16 | 2020-12-16 | Secondary compression mould of mobile phone rear cover belt crater |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201070820Y (en) * | 2007-06-19 | 2008-06-11 | 汉达精密电子(昆山)有限公司 | Push-out structure on glue feeding side |
| CN103057045B (en) * | 2013-01-14 | 2015-08-26 | 昆山易昌泰塑胶有限公司 | Soft plastic also can be compressed thinning mould by a kind of injection moulding soft touch thermoplastic shape glue in base accessory simultaneously |
| CN205033491U (en) * | 2015-08-31 | 2016-02-17 | 圣美精密工业(昆山)有限公司 | Compression mold of broken pass product |
| CN209566468U (en) * | 2019-02-22 | 2019-11-01 | 中山联合光电科技股份有限公司 | A kind of ejecting structure of injection mold |
| CN110355944B (en) * | 2019-05-30 | 2024-01-30 | 开平市盈光机电科技有限公司 | Mobile phone rear cover blank forming die with movable cavity adjusted through spring and comprising middle frame |
| CN210820569U (en) * | 2019-08-15 | 2020-06-23 | 昆山峰实电子外观应用科技有限公司 | Forming die of double-sided film-pasting injection molding product |
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