CN213082324U - Trapping and discharging structure of sheet forming die - Google Patents
Trapping and discharging structure of sheet forming die Download PDFInfo
- Publication number
- CN213082324U CN213082324U CN202021891777.9U CN202021891777U CN213082324U CN 213082324 U CN213082324 U CN 213082324U CN 202021891777 U CN202021891777 U CN 202021891777U CN 213082324 U CN213082324 U CN 213082324U
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- Prior art keywords
- exhaust
- sheet forming
- groove
- forming die
- core
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- 238000007599 discharging Methods 0.000 title abstract description 4
- 239000007787 solid Substances 0.000 claims description 14
- 238000013022 venting Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000007493 shaping process Methods 0.000 abstract 1
- 238000007731 hot pressing Methods 0.000 description 3
- 210000001161 mammalian embryo Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a stranded gas exhaust structure of a sheet forming die, which comprises an exhaust insert, wherein a first groove is arranged on the upper surface of a die core of the sheet forming die, the exhaust insert is arranged in the first groove, and the depth of the first groove is less than or equal to the thickness of the exhaust insert; the exhaust insert comprises a breathable layer, the breathable layer is arranged on one side close to the upper surface of the mold core of the sheet forming mold, a first exhaust channel is arranged in the breathable layer, and the first exhaust channel is communicated with the outside of the mold core of the sheet forming mold. The utility model is additionally provided with an exhaust insert on the basis of the existing mold core; when hot briquetting, receive the effect of high-pressure gas extrusion force, the stranded gas can flow in toward exhaust passage along ventilative layer, and the mold core outside of finally discharging for there is not the stranded gas at the shaping in-process mold core and treat the processing sheet contact surface, has improved the precision of processing greatly.
Description
Technical Field
The utility model relates to a sheet forming die technical field especially relates to a sheet forming die's stranded gas exhaust structure.
Background
The sheet material on the market is processed and formed by hot-pressing with high-pressure air, the mode is almost instant forming, and the air on the contact surface of the sheet material and the mold core cannot be discharged in the process, so that air trapping is avoided. In the hot pressing process, a closed space is formed between the sheet and the mold core, so that trapped air cannot be discharged, and the occurrence of the trapped air can cause inaccurate processing; on the other hand, if the trapped air amount reaches a certain amount, the sheet may be broken by the reaction force of the trapped air during the hot pressing process, resulting in waste of resources.
SUMMERY OF THE UTILITY MODEL
For overcoming the problem that exists among the prior art, the utility model provides a sheet forming die's stranded gas exhaust structure provides following technical scheme:
the trapped gas exhaust structure of the sheet forming die comprises an exhaust insert, wherein a first groove is formed in the upper surface of a die core of the sheet forming die, the exhaust insert is arranged in the first groove, and the depth of the first groove is smaller than or equal to the thickness of the exhaust insert; the exhaust insert comprises a breathable layer, the breathable layer is arranged on one side close to the upper surface of the mold core of the sheet forming mold, a first exhaust channel is arranged in the breathable layer, and the first exhaust channel is communicated with the outside of the mold core of the sheet forming mold. When the machining is carried out, trapped gas between the sheet to be machined and the mold core can enter the first exhaust channel along the breathable layer under the action of high-pressure gas, and then is exhausted to the outside of the mold core through the first exhaust channel.
Further, the sheet forming die further comprises a second exhaust channel, wherein the second exhaust channel is arranged in a die core of the sheet forming die; and one end of the second exhaust channel is communicated with the first exhaust channel, and the other end of the second exhaust channel is communicated with the outside of the sheet forming die core. During processing, trapped gas can enter the first exhaust channel along the breathable layer under the action of high-pressure gas, then enters the second exhaust channel from the first exhaust channel, and finally is discharged to the outside of the mold core from the second exhaust channel.
The sheet forming die further comprises a first exhaust gap, a second groove is formed in the middle of the upper surface of the die blank of the sheet forming die, and first limiting steps are arranged on the periphery of the second groove; a convex block matched with the second groove in size is arranged in the middle of the bottom surface of the sheet forming die core, the second exhaust channel penetrates through the convex block and is communicated with the bottom surface of the sheet forming die core, and second limiting steps are arranged on the periphery of the convex block; the first limiting step is fixedly connected with the second limiting step, the height of the lug is smaller than the depth of the second groove, and the first exhaust gap is arranged between the bottom surface of the lug and the upper surface of the second groove.
Further, still include the third exhaust passage of setting in sheet forming die mould embryo, the one end of third exhaust passage with first exhaust clearance intercommunication, the other end and the outside intercommunication of sheet forming die mould embryo.
Further, the exhaust insert further comprises a solid layer, the breathable layer is fixedly connected with the solid layer, and the bottom surface of the solid layer is fixedly connected with the first groove; and a first through hole is formed in the solid layer, one end of the first through hole is communicated with the first exhaust channel, and the other end of the first through hole is communicated with the second exhaust channel.
The sheet forming die further comprises a second exhaust gap, a third groove is formed in the middle of the lower die plate of the sheet forming die, a second through hole is formed in the third groove, the upper surface of the die core of the sheet forming die penetrates through the second through hole, and the second exhaust gap is formed between the die core of the sheet forming die and the lower die plate.
Further, the second exhaust gap width is 0.25 millimeters.
Further, the exhaust insert is a 3D metal printed article.
Compared with the prior art, the utility model is additionally provided with the exhaust insert on the basis of the existing mold core; because of inside ventilative layer and the exhaust passage of exhaust mold insert and the outside intercommunication of mold core, when hot briquetting, under the effect of receiving high-pressure gas extrusion force, the stranded gas can flow in toward exhaust passage along ventilative layer, and the mold core outside of finally discharging for there is not the stranded gas at the forming process mold core with treat the processing sheet contact surface, has improved the precision of processing greatly.
Drawings
FIG. 1 is a schematic view of the mold core of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a top view of the lower plate and core assembly;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;
fig. 6 is an enlarged view of a portion C of fig. 5.
Detailed Description
To further illustrate the technical means and technical effects of the present invention, the following describes a preferred embodiment of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-3, the sheet forming mold includes a mold core 1 and a mold blank 2, a first groove 11 is formed in an upper surface of the mold core 1, a venting insert 3 made by 3D metal printing is fixed in the first groove 11, and a depth of the first groove 11 is smaller than or equal to a thickness of the venting insert 3. The exhaust insert 3 comprises a gas permeable layer 31 and a solid layer 32, and the gas permeable layer 31 is fixedly connected with the solid layer 32. The ventilation layer 31 is arranged on one side close to the upper surface of the mold core 1, the solid layer 32 is arranged on one side close to the bottom surface of the first groove 11, and the bottom surface of the solid layer 32 is fixedly connected with the first groove 11. Be equipped with first exhaust passage 33 in the ventilative layer 31, solid layer 32 is equipped with the first through-hole 34 that runs through solid layer 32 upper and lower surface, and first exhaust passage 33 communicates with first through-hole 34. The mold core 1 is internally provided with a second exhaust passage 12, and the second exhaust passage 12 is communicated with the first exhaust through hole 34. A second groove 21 is formed in the middle of the upper surface of the mold blank 2, and first limiting steps 22 are arranged around the second groove 21; a convex block 13 matched with the second groove 21 in size is arranged in the middle of the bottom surface of the mold core 1, a second exhaust channel 12 penetrates through the convex block 13 to be communicated with the bottom surface of the mold core 1, and second limiting steps 14 are arranged around the convex block 13; the first limit step 22 is fixedly connected with the second limit step 14, and the height of the convex block 13 is smaller than the depth of the second groove 21. After the assembly is completed, a first exhaust gap 4 is reserved between the matching surfaces of the lug 13 and the second groove 21, and the first exhaust gap 4 is communicated with the second exhaust channel 12. A third exhaust channel 23 is arranged in the mold blank 2, one end of the third exhaust channel 23 is communicated with the first exhaust gap 4, and the other end of the third exhaust channel 23 is communicated with the outside of the mold blank 2.
As shown in fig. 4-6, the sheet forming die further includes a lower template 5, the sheet to be processed is fixed on the lower template 5, the lower template 5 is fixedly connected to the die blank 2, a third groove 51 is formed in the middle of the lower template 5, a second through hole 52 is formed in the third groove 51, the upper surface of the die core 1 passes through the second through hole 52, and a second exhaust gap 6 of 0.25 mm is left between the die core 1 and the lower template 5 in order to exhaust trapped air remaining at the matching position of the die core 1 and the lower template 5.
During high-pressure forming, trapped gas between a sheet to be processed and the mold core 1 is extruded by high-pressure gas, enters the breathable layer 31 from the exhaust insert 3, flows to the first through hole 34 through the first exhaust channel 33, then flows into the second exhaust channel 12, then flows into the third exhaust channel 23 after entering the first exhaust gap 4, and finally is discharged to the outside of the mold blank 2; on the other hand, trapped air between the mold core 1 and the lower mold plate 5 is squeezed by the high-pressure gas and is discharged to the outside of the mold core 1 through the second air discharge gap 6.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (8)
1. The trapped gas exhaust structure of the sheet forming die is characterized by comprising an exhaust insert, wherein a first groove is formed in the upper surface of a die core of the sheet forming die, the exhaust insert is arranged in the first groove, and the depth of the first groove is smaller than or equal to the thickness of the exhaust insert;
the exhaust insert comprises a breathable layer, the breathable layer is arranged on one side close to the upper surface of the mold core of the sheet forming mold, a first exhaust channel is arranged in the breathable layer, and the first exhaust channel is communicated with the outside of the mold core of the sheet forming mold.
2. The trapping gas exhausting structure of claim 1, further comprising a second gas exhausting passage provided in a core of a sheet forming die;
and one end of the second exhaust channel is communicated with the first exhaust channel, and the other end of the second exhaust channel is communicated with the outside of the sheet forming die core.
3. The trapping gas exhaust structure according to claim 2, further comprising a first exhaust gap, wherein a second groove is formed in the middle of the upper surface of the blank of the sheet forming die, and first limiting steps are arranged around the second groove;
a convex block matched with the second groove in size is arranged in the middle of the bottom surface of the sheet forming die core, the second exhaust channel penetrates through the convex block and is communicated with the bottom surface of the sheet forming die core, and second limiting steps are arranged on the periphery of the convex block;
the first limiting step is fixedly connected with the second limiting step, the height of the lug is smaller than the depth of the second groove, and the first exhaust gap is arranged between the bottom surface of the lug and the upper surface of the second groove.
4. The trapping gas exhaust structure according to claim 3, further comprising a third exhaust passage provided in the sheet forming die blank, one end of the third exhaust passage communicating with the first exhaust gap and the other end communicating with the outside of the sheet forming die blank.
5. The trapped gas venting structure of claim 4, wherein the venting insert further comprises a solid layer, the gas permeable layer is fixedly attached to the solid layer, and a bottom surface of the solid layer is fixedly attached to the first groove;
and a first through hole is formed in the solid layer, one end of the first through hole is communicated with the first exhaust channel, and the other end of the first through hole is communicated with the second exhaust channel.
6. The trapped air exhaust structure of claim 5, further comprising a second exhaust gap, wherein a third groove is formed in the middle of the lower template of the sheet forming die, a second through hole is formed in the third groove, the upper surface of the die core of the sheet forming die passes through the second through hole, and the second exhaust gap is formed between the die core of the sheet forming die and the lower template.
7. The trapped gas exhaust structure of claim 6, wherein the second exhaust gap width is 0.25 mm.
8. The trapped gas exhaust structure of claim 7, wherein the exhaust insert is a 3D metal print.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021891777.9U CN213082324U (en) | 2020-09-02 | 2020-09-02 | Trapping and discharging structure of sheet forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021891777.9U CN213082324U (en) | 2020-09-02 | 2020-09-02 | Trapping and discharging structure of sheet forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213082324U true CN213082324U (en) | 2021-04-30 |
Family
ID=75633564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021891777.9U Expired - Fee Related CN213082324U (en) | 2020-09-02 | 2020-09-02 | Trapping and discharging structure of sheet forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213082324U (en) |
-
2020
- 2020-09-02 CN CN202021891777.9U patent/CN213082324U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210430 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |