CN219944567U - Die casting die for metal mobile phone shell - Google Patents
Die casting die for metal mobile phone shell Download PDFInfo
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- CN219944567U CN219944567U CN202321045333.7U CN202321045333U CN219944567U CN 219944567 U CN219944567 U CN 219944567U CN 202321045333 U CN202321045333 U CN 202321045333U CN 219944567 U CN219944567 U CN 219944567U
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- die
- sliding groove
- blocking piece
- mobile phone
- die casting
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- 239000002184 metal Substances 0.000 title claims abstract description 40
- 238000004512 die casting Methods 0.000 title claims abstract description 37
- 230000000903 blocking effect Effects 0.000 claims abstract description 40
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 230000007547 defect Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 12
- 238000000926 separation method Methods 0.000 description 8
- 230000004888 barrier function Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a die-casting die for a metal mobile phone shell, which relates to the field of die design and comprises an upper die and a lower die, wherein a cavity is formed between the upper die and the lower die; the upper die is internally provided with a sliding groove, the sliding groove and the runner are mutually communicated, a blocking piece is mounted in sliding fit in the sliding groove, a through hole is formed in the blocking piece, and the runner is in a closed state when the through hole slides into the sliding groove; a heating device is fixedly arranged in the upper die and is used for heating the sliding groove and the blocking piece; a linkage mechanism is fixedly arranged in the upper die and drives the blocking piece to move back and forth in the sliding groove; the beneficial effects are that: after the through hole on the blocking piece slides into the sliding groove, the gate can be cut off, and the molten metal in the cavity is not cooled at the moment, so that the gate position cannot remain marks, a product is taken out during mold opening, the product can be completely separated from the gate, defects cannot be left on the surface of the product, and the requirement of high precision is met.
Description
Technical Field
The utility model relates to the field of die design, in particular to a die casting die for a metal mobile phone shell.
Background
The die casting die is a tool for casting metal parts, and is a tool for completing a die casting process on a special die casting die forging machine. The basic technological process of die casting is as follows: the molten metal is cast and filled into the cavity of the mold at low or high speed, the mold has a movable cavity surface, and the mold is pressurized and forged along with the cooling process of the molten metal, so that not only is the shrinkage cavity shrinkage defect of the blank eliminated, but also the internal structure of the blank reaches the crushed grains in a forged state, and the comprehensive mechanical property of the blank is obviously improved.
However, when the die casting die works, molten metal needs to be input into the die cavity through the gate, the gate can stay on a product after being cooled, the gate can be removed after demolding, the gate is generally removed through cutting, marks are left at the gate position of the product after cutting, the appearance of the product is affected, and the die casting die cannot be used for metal products (mobile phone shells, mobile phone middle frames, watch middle frames and the like) with higher precision requirements.
In order to conceal the gate of the product, a submarine gate is generally used in the mold, for example, a plastic mold for a refrigerator door handle is disclosed in the prior patent (bulletin number: CN 211843005U, bulletin day: 2020.11.03) which conceals the gate of the product by providing a submarine gate.
When the submarine gate is applied to a die casting mold, the gate is arranged at the edge or the back of a product, so that the gate position is not obvious, but for products with high precision requirements, the submarine gate still leaves defects on the product, and therefore, improvement is needed.
Disclosure of Invention
The utility model provides a technical scheme capable of solving the problems in order to overcome the defects of the prior art.
A die casting die for a metal mobile phone shell comprises an upper die and a lower die, wherein a cavity is formed between the upper die and the lower die;
the upper die is internally provided with a sliding groove, the sliding groove and the runner are mutually communicated, a blocking piece is mounted in sliding fit in the sliding groove, a through hole is formed in the blocking piece, and the runner is in a closed state when the through hole slides into the sliding groove;
a heating device is fixedly arranged in the upper die and is used for heating the sliding groove and the blocking piece;
and a linkage mechanism is fixedly arranged in the upper die and drives the blocking piece to move back and forth in the sliding groove.
As a further scheme of the utility model: the linkage mechanism comprises a motor and a linkage rod, the motor drives the linkage rod to rotate, a chute is formed in the linkage rod, a locating pin is fixedly arranged on the blocking piece, and the locating pin is installed in the chute in a sliding fit mode.
As a further scheme of the utility model: the sliding groove adopts a thin sheet for grooving, the blocking piece adopts a thin sheet, and the sliding groove and the blocking piece are both in square structures.
As a further scheme of the utility model: the sliding groove adopts annular grooves, the blocking piece adopts annular sheets, and the blocking piece is installed in the sliding groove in a rotating fit manner.
As a further scheme of the utility model: the runner is including sprue and reposition of redundant personnel way, and fixed mounting has the roof on the last mould, and the middle part shaping of roof has the die casting mouth, and the upper end and the die casting mouth of sprue communicate each other, and the reposition of redundant personnel way is provided with more than two, and the reposition of redundant personnel way communicates the lower extreme at the sprue, and the lower extreme of reposition of redundant personnel way lets in the die cavity setting.
As a further scheme of the utility model: the downside fixed mounting of lower mould has the bottom plate, and lift sliding fit installs the thimble board in the bottom plate, and fixed mounting has a plurality of thimble on the thimble board, and the shaping has a plurality of thimble hole on the lower mould, and thimble hole and die cavity intercommunication setting each other, the upper end one-to-one clearance fit of a plurality of thimble inserts the thimble hole setting.
As a further scheme of the utility model: guide posts are fixedly arranged at the four ends of the lower side of the upper die, guide sleeves are formed at the four ends of the upper side of the lower die, and the guide posts are inserted into the guide sleeves in a one-to-one clearance fit manner.
As a further scheme of the utility model: and cooling runners are formed in the upper die and the lower die.
Compared with the prior art, the utility model has the beneficial effects that:
1. after the upper die and the lower die are mutually clamped, high-temperature molten metal can be input into a die cavity for molding through a runner, the runner is input into the die cavity to serve as a pouring gate of a product, the pouring gate is arranged at a position where the product is provided with a convex structure, the whole die cavity is filled with the molten metal, then pressure maintaining operation is carried out for a period of time, then a blocking piece is driven to slide through a linkage mechanism, a through hole on the blocking piece slides into a sliding groove, at the moment, the pouring gate is cut off, the die casting die is still in a die clamping state, the molten metal in the die cavity is not cooled, no trace remains at the position of the pouring gate, the molten metal is molded in the die cavity after the die cavity is cooled, finally, the die opening operation is carried out, the product is taken out, the product can be completely separated from the pouring gate, the surface of the product has no defect of the pouring gate, and the requirement of high precision is met;
2. when the gap department between metal liquid infiltration sliding tray and separation spare, heating device can let the metal liquid keep in the state of liquid, avoids the metal liquid to take place the cooling, lets the separation spare can not block in the sliding tray, because the die sinking needs to go on after the metal liquid cooling, the metal liquid can remain in the gap department between sliding tray and the separation spare after the die sinking, drives the separation spare through the link gear this moment, lets remaining metal take place to drop, can not influence the die casting production of next time, guarantees the steady operation of die casting die and die casting machine.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1;
FIG. 3 is a schematic view of the structure of a linkage driven barrier sheet;
fig. 4 is a schematic view of the structure of the linkage driven barrier ring sheet.
The figure shows: 1. an upper die; 2. a lower die; 3. a cavity; 4. a flow passage; 41. a main flow passage; 42. a sub-runner; 5. a sliding groove; 6. a barrier; 7. a via hole; 8. a heating device; 9. a linkage mechanism; 91. a motor; 92. a linkage rod; 10. a chute; 11. a positioning pin; 12. a top plate; 13. a die casting nozzle; 14. a bottom plate; 15. a needle ejection plate; 16. a thimble; 17. a top pinhole; 18. guide sleeve; 19. a guide post; 20. a cooling flow passage; 21. and (5) a product.
Description of the embodiments
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown.
The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 4, the die casting die for the metal mobile phone shell comprises an upper die 1 and a lower die 2, wherein a cavity 3 is formed between the upper die 1 and the lower die 2;
the upper die 1 is internally provided with a runner 4, the bottom end of the runner 4 is communicated with a cavity 3, the upper die 1 is internally provided with a sliding groove 5, the sliding groove 5 and the runner 4 are mutually communicated, a blocking piece 6 is mounted in a sliding fit manner in the sliding groove 5, a through hole 7 is formed in the blocking piece 6, and the runner 4 is in a closed state when the through hole 7 slides into the sliding groove 5;
a heating device 8 is fixedly arranged in the upper die 1, and the heating device 8 heats the sliding groove 5 and the blocking piece 6;
a linkage mechanism 9 is fixedly arranged in the upper die 1, and the linkage mechanism 9 drives the blocking piece 6 to move back and forth in the sliding groove 5;
the principle is as follows: after the upper die 1 and the lower die 2 are mutually clamped, high-temperature molten metal can be input into the die cavity 3 through the runner 4 for molding, the runner 4 is input into the die cavity 3 to serve as a gate of a product 21, the gate is arranged at a position of the product 21 with a convex structure, pressure maintaining operation is carried out for a period of time after the whole die cavity 3 is filled with the molten metal, then the blocking piece 6 is driven to slide through the linkage mechanism 9, the through hole 7 on the blocking piece 6 slides into the sliding groove 5, at the moment, the gate is cut off, the die casting die is still in a die-clamping state, the molten metal in the die cavity 3 is not cooled, no trace remains at the gate position, the molten metal is molded in the die cavity 3 after the die cavity 3 is cooled, finally, the die opening operation is carried out, the product 21 is taken out, the product 21 can be completely separated from the gate, the surface of the product 21 has no defect of the gate, and the requirement of high precision is met;
when the gap department between metal liquid infiltration sliding tray 5 and separation spare 6, heating device 8 can let the metal liquid keep the state at the liquid, avoid the metal liquid to take place the cooling, let separation spare 6 can not block in sliding tray 5, because the die sinking needs to go on after the metal liquid cooling, after the die sinking metal liquid can probably remain in the gap department between sliding tray 5 and separation spare 6, drive separation spare 6 through link gear 9 this moment, let remaining metal drop, can not influence the die casting production of next time, guarantee the steady operation of die casting mould and die casting machine.
As a further scheme of the utility model: the linkage mechanism 9 comprises a motor 91 and a linkage rod 92, the motor 91 drives the linkage rod 92 to rotate, a chute 10 is formed on the linkage rod 92, a positioning pin 11 is fixedly arranged on the blocking piece 6, and the positioning pin 11 is arranged in the chute 10 in a sliding fit manner; the motor 91 can drive the blocking member 6 to slide back and forth in the sliding groove 5 through the linkage rod 92, and at this time, the positioning pin 11 can slide in the sliding groove 10 of the linkage rod 92, so that the blocking member 6 can be controlled to cut off the gate conveniently.
As a further scheme of the utility model: the sliding groove 5 is provided with a thin sheet slot, the blocking piece 6 is provided with a thin sheet, and the sliding groove 5 and the blocking piece 6 are both square structures; ensuring that the blocking member 6 is able to slide in translation in the sliding channel 5.
As a further scheme of the utility model: the sliding groove 5 adopts an annular slot, the blocking piece 6 adopts an annular sheet, and the blocking piece 6 is arranged in the sliding groove 5 in a rotating fit manner; when the blocking piece 6 rotates in the sliding groove 5, the through hole 7 can be inserted into the sliding groove 5, so that the runner 4 is closed at the gate position.
As a further scheme of the utility model: the runner 4 comprises a main runner 41 and a sub runner 42, a top plate 12 is fixedly arranged on the upper die 1, a die casting port 13 is formed in the middle of the top plate 12, the upper end of the main runner 41 is communicated with the die casting port 13, more than two sub runners 42 are arranged, the sub runner 42 is communicated with the lower end of the main runner 41, and the lower end of the sub runner 42 is communicated with the cavity 3; the main runner 41 is inputted into the cavity 3 through two or more sub runners 42, and can be applied to the product 21 having a complicated die casting structure and high precision requirements.
As a further scheme of the utility model: the lower side of the lower die 2 is fixedly provided with a bottom plate 14, an ejector plate 15 is arranged in the bottom plate 14 in a lifting sliding fit manner, a plurality of ejector pins 16 are fixedly arranged on the ejector plate 15, a plurality of ejector pin holes 17 are formed in the lower die 2, the ejector pin holes 17 and the die cavity 3 are mutually communicated, and the upper ends of the plurality of ejector pins 16 are inserted into the ejector pin holes 17 in a one-to-one corresponding clearance fit manner; after the die is opened, the ejector plate 15 is controlled to ascend, and the ejector plate 15 ejects the product 21 in the die cavity 3 through the ejector pins 16, so that the product 21 can be conveniently unloaded.
As a further scheme of the utility model: guide posts 19 are fixedly arranged at four ends of the lower side of the upper die 1, guide sleeves 18 are formed at four ends of the upper side of the lower die 2, and the guide posts 19 are inserted into the guide sleeves 18 in a one-to-one clearance fit manner; so that the fit between the upper die 1 and the lower die 2 is more stable.
As a further scheme of the utility model: cooling runners 20 are formed in the upper die 1 and the lower die 2; the cooling speed of the cavity 3 can be increased, and the rapid compression casting production of the product 21 can be realized.
The present embodiment is not limited in any way by the shape, material, structure, etc. of the present utility model, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present utility model are all included in the scope of protection of the technical solution of the present utility model.
Claims (8)
1. A die casting die for a metal mobile phone shell comprises an upper die and a lower die, wherein a cavity is formed between the upper die and the lower die; the method is characterized in that:
the upper die is internally provided with a sliding groove, the sliding groove and the runner are mutually communicated, a blocking piece is mounted in sliding fit in the sliding groove, a through hole is formed in the blocking piece, and the runner is in a closed state when the through hole slides into the sliding groove;
a heating device is fixedly arranged in the upper die and is used for heating the sliding groove and the blocking piece;
and a linkage mechanism is fixedly arranged in the upper die and drives the blocking piece to move back and forth in the sliding groove.
2. A die casting die for a metal mobile phone case according to claim 1, characterized in that: the linkage mechanism comprises a motor and a linkage rod, the motor drives the linkage rod to rotate, a chute is formed in the linkage rod, a locating pin is fixedly arranged on the blocking piece, and the locating pin is installed in the chute in a sliding fit mode.
3. A die casting die for a metal mobile phone case according to any one of claims 1 or 2, characterized in that: the sliding groove adopts a thin sheet for grooving, the blocking piece adopts a thin sheet, and the sliding groove and the blocking piece are both in square structures.
4. A die casting die for a metal mobile phone case according to any one of claims 1 or 2, characterized in that: the sliding groove adopts annular grooves, the blocking piece adopts annular sheets, and the blocking piece is installed in the sliding groove in a rotating fit manner.
5. A die casting die for a metal mobile phone case according to claim 1, characterized in that: the runner is including sprue and reposition of redundant personnel way, and fixed mounting has the roof on the last mould, and the middle part shaping of roof has the die casting mouth, and the upper end and the die casting mouth of sprue communicate each other, and the reposition of redundant personnel way is provided with more than two, and the reposition of redundant personnel way communicates the lower extreme at the sprue, and the lower extreme of reposition of redundant personnel way lets in the die cavity setting.
6. A die casting die for a metal mobile phone case according to claim 1, characterized in that: the downside fixed mounting of lower mould has the bottom plate, and lift sliding fit installs the thimble board in the bottom plate, and fixed mounting has a plurality of thimble on the thimble board, and the shaping has a plurality of thimble hole on the lower mould, and thimble hole and die cavity intercommunication setting each other, the upper end one-to-one clearance fit of a plurality of thimble inserts the thimble hole setting.
7. A die casting die for a metal mobile phone case according to claim 1, characterized in that: guide posts are fixedly arranged at the four ends of the lower side of the upper die, guide sleeves are formed at the four ends of the upper side of the lower die, and the guide posts are inserted into the guide sleeves in a one-to-one clearance fit manner.
8. A die casting die for a metal mobile phone case according to claim 1, characterized in that: and cooling runners are formed in the upper die and the lower die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321045333.7U CN219944567U (en) | 2023-05-05 | 2023-05-05 | Die casting die for metal mobile phone shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321045333.7U CN219944567U (en) | 2023-05-05 | 2023-05-05 | Die casting die for metal mobile phone shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219944567U true CN219944567U (en) | 2023-11-03 |
Family
ID=88549682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321045333.7U Active CN219944567U (en) | 2023-05-05 | 2023-05-05 | Die casting die for metal mobile phone shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219944567U (en) |
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2023
- 2023-05-05 CN CN202321045333.7U patent/CN219944567U/en active Active
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