CN115582904A - Upper-two-lower-four-die-set structure and working process thereof - Google Patents
Upper-two-lower-four-die-set structure and working process thereof Download PDFInfo
- Publication number
- CN115582904A CN115582904A CN202110754764.XA CN202110754764A CN115582904A CN 115582904 A CN115582904 A CN 115582904A CN 202110754764 A CN202110754764 A CN 202110754764A CN 115582904 A CN115582904 A CN 115582904A
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- Prior art keywords
- punch
- die
- female die
- floating
- core rod
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- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000008569 process Effects 0.000 title claims abstract description 7
- 238000004080 punching Methods 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 3
- 239000000969 carrier Substances 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 abstract description 9
- 238000009826 distribution Methods 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
- B28B3/021—Ram heads of special form
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention relates to an upper-two-lower-four die carrier structure and a working process thereof. The die set structure is specially designed for complex products of 5G ceramic filters, and a group of lower die plate structures are added in the design of the lower punching structure to be compared with the former lower three structures, so that the method is more favorable for more reasonably punching when products are debugged and pressed in pressure test, each punch is more conveniently installed when blanks are tested in pressure, the design of the punch also tends to be simplified, and therefore blanks with high precision and more uniform density distribution are obtained.
Description
Technical Field
The invention relates to an upper-two-lower-four die carrier structure and a working process thereof, belonging to the technical field of powder metallurgy.
Background
The die holder functions to connect the die to the press, transmit pressure, and perform various operations (powder transfer, control of the movable punch pressing speed, and holding of the die, punch, and core rod at appropriate relative positions, respectively), so that the main parts fulfill the powder molding requirements. The 5G ceramic filter is a complex product, has the characteristics of porosity and multiple steps, and has higher requirements on the framework structure, so the improvement of the filter is needed.
Disclosure of Invention
The invention aims to overcome the defects and provides a special upper-two-lower-four die frame structure, so that the pressurization adjustment and the press forming of the porous and multi-step structures of the upper and lower ceramic products are realized, and the forming requirement of the complex-structure product of the 5G ceramic filter is met.
The technical scheme adopted by the invention is as follows: the upper-two-lower-four-die-set structure comprises an upper-two-die-set and a lower-four-die-set corresponding to the upper-two-die-set;
the upper die frame comprises: the punching die comprises a first punching die (11) and a second punching die (12), wherein the first punching die (11) is arranged at the bottom of the second die carrier, and the first punching die (11) is driven by guide posts (13) distributed on the side parts of the second die carrier to move up and down; the upper punch (12) is arranged in the middle of the upper die frame, and the upper punch (11) is provided with a through hole for the upper punch (12) to move up and down and penetrate through;
the four die carriers are as follows: the punching die comprises a female die plate (21) which corresponds to the upper punch (11), wherein the lower part of the female die plate (21) is provided with a fixedly arranged lower punch (22), and the lower punch (22) forms a limit for the descending position of the female die plate (21); a lower second punch (23) which is arranged in a floating manner is arranged at the lower part of the lower second punch (22), a lower third punch (24) which is arranged in a floating manner is arranged at the lower part of the lower second punch (23), a lower fourth punch (25) which is fixedly arranged is arranged at the lower part of the lower third punch (24), a lower connecting plate (26) is arranged at the lower part of the lower fourth punch (25),
a core rod (27) penetrates through the lower four punches (25) and the lower connecting plate (26), and the core rod (27) can move up and down.
The working process of the upper-two-lower-four die carrier structure is carried out according to the following steps:
1) The powder filling boot moves forward to fill powder into the cavity of the female die and then returns, the upper slide block of the machine descends, and the upper punch (11) and the upper punch (12) are driven to move downwards by the guide post (13);
2) The upper punch (12) moves downwards to enter the female die, and powder begins to be compressed;
3) After the upper punch (12) moves to a certain stroke, the upper punch (12), the female die plate (21) and the core rod (27) start to descend together through a synchronous pressing mechanism arranged on the machine, when the upper punch (12) descends to a certain distance synchronously, the female die plate (21) is supported by the next punch (22), and the upper punch (12) continues to press downwards;
4) The lower second punch (23) and the lower third punch (24) start to descend when bearing pressure is larger than floating force for supporting the floating template, and just locate at a specified forming position when contacting the lower fourth punch (25), the upper second punch (12) moves downwards to pressurize, and finally, the upper second punch and the lower third punch are pressed and formed;
5) After pressure forming, the upper punch (11) rises, the upper punch (12) continues to descend, and the female die, the floating template and the core rod (27) descend until the upper end surface of the lower connecting plate (26), so that a pressed blank can be freely released;
6) The upper punch (12) ascends, the female die and the core rod (23) reset, and the lower punch (23) and the lower punch (24) of the floating die ascend to the powder filling position under the action of the floating cylinder.
The invention has the advantages that: the die frame structure specially designed for the complex products of the 5G ceramic filter is additionally provided with a group of lower die plate structures compared with the former lower three structures in the design of the lower die structure, so that the split punching is more reasonable in debugging and pressing the products in pressure test, each die is more convenient to install in pressure test of blanks, the die design also tends to be simplified, and the blanks with high precision and more uniform density distribution are obtained.
Drawings
FIG. 1 is a schematic view of the structure of the upper two mold frames of the present invention.
Fig. 2 is a schematic diagram of the structure of the lower four-die carrier of the invention.
Detailed Description
The upper-two-lower-four-die-set structure comprises an upper-two-die-set and a lower-four-die-set corresponding to the upper-two-die-set;
and the upper die frame comprises: the punching die comprises a first punching die 11 and a second punching die 12, wherein the first punching die 11 is arranged at the bottom of the second die frame, and the first punching die 11 is driven by guide posts 13 distributed on the side parts of the second die frame to move up and down; the upper second punch 12 is arranged in the middle of the upper second die frame, and the upper first punch 11 is provided with a through hole for the upper second punch 12 to move up and down and penetrate through;
the four die carriers are as follows: the punching die comprises a female die plate 21 which corresponds to the upper punch 11, wherein the lower part of the female die plate 21 is provided with a fixedly arranged lower punch 22, and the lower punch 22 forms a limit for the descending position of the female die plate 21; a lower second punch 23 which is arranged in a floating manner is arranged at the lower part of the lower punch 22, a lower third punch 24 which is arranged in a floating manner is arranged at the lower part of the lower second punch 23, a lower fourth punch 25 which is fixedly arranged is arranged at the lower part of the lower third punch 24, a lower connecting plate 26 is arranged at the lower part of the lower fourth punch 25,
a core rod 27 is also arranged to penetrate through the lower four-punch 25 and the lower connecting plate 26, and the core rod 27 can move up and down.
The working process of the upper-two-lower-four die carrier structure is carried out according to the following steps:
1) The powder filling boot advances to fill powder into the cavity of the female die and then retreats, the upper sliding block of the machine descends, and the upper punch 11 and the upper punch 12 are driven to move downwards by the guide pillar 13;
2) The upper punch 12 moves downwards to enter a female die, and powder begins to be compressed;
3) After the upper punch 12 moves to a certain stroke, the upper punch 12, the female die plate 21 and the core rod 27 start to descend together through a synchronous pressing mechanism arranged on the machine, and after the upper punch 12 descends to a certain distance synchronously, the female die plate 21 is supported by the lower punch 22, and the upper punch 12 continues to press downwards;
4) The lower second punch 23 and the lower third punch 24 start to descend when the borne pressure is greater than the floating force for supporting the floating template, and just locate at the specified position for forming when touching the lower fourth punch 25, the upper second punch 12 moves downwards for pressurizing, and finally the pressing forming is carried out;
5) After the pressure forming, the upper punch 11 rises again, the upper punch 12 continues to descend, and the female die, the floating die plate and the core rod 27 descend to the upper end face of the lower connecting plate 26, so that the green compact can be freely released;
6) The upper punch 12 rises, the female die and the core rod 23 reset, and the lower punch 23 and the lower punch 24 of the floating die rise to the powder filling position under the action of the floating cylinder.
Aiming at the characteristics of porosity and multiple steps of a complex product of the 5G ceramic filter, the requirement on the framework structure is higher, a special upper-second-lower-four framework structure is designed, the pressurization adjustment and the compression molding of the porosity and multiple step structures of the upper ceramic product and the lower ceramic product are realized, and the molding requirement of the complex product of the 5G ceramic filter is met.
Claims (2)
1. The upper-two-lower-four-die-set structure is characterized by comprising an upper-two die set and a lower-four die set corresponding to the upper-two die set;
the upper die frame comprises: the punching die comprises a first punch (11) and a second punch (12), wherein the first punch (11) is arranged at the bottom of the second die carrier, and the first punch (11) is driven by guide pillars (13) distributed on the side parts of the second die carrier to move up and down; the upper punch (12) is arranged in the middle of the upper die frame, and the upper punch (11) is provided with a through hole for the upper punch (12) to penetrate through in an up-and-down movement manner;
the lower four die carriers: the punching die comprises a female die plate (21) which is arranged corresponding to the previous punch (11), wherein the lower part of the female die plate (21) is provided with a next punch (22) which is fixedly arranged, and the next punch (22) forms a limit for the descending position of the female die plate (21); a lower second punch (23) which is arranged in a floating manner is arranged at the lower part of the lower second punch (22), a lower third punch (24) which is arranged in a floating manner is arranged at the lower part of the lower second punch (23), a lower fourth punch (25) which is fixedly arranged is arranged at the lower part of the lower third punch (24), a lower connecting plate (26) is arranged at the lower part of the lower fourth punch (25),
a core rod (27) penetrates through the lower four punches (25) and the lower connecting plate (26), and the core rod (27) can move up and down.
2. The working process of the upper-two-lower-four-die-frame structure is characterized by comprising the following steps of:
1) The powder filling boot moves forward to fill powder into the cavity of the female die and then returns, the upper slide block of the machine descends, and the upper punch (11) and the upper punch (12) are driven to move downwards by the guide post (13);
2) The upper punch (12) moves downwards to enter the female die, and powder begins to be compressed;
3) After the upper punch (12) moves to a certain stroke, the upper punch (12), the female die plate (21) and the core rod (27) start to descend together through a synchronous pressing mechanism arranged on the machine, when the upper punch (12) descends to a certain distance synchronously, the female die plate (21) is supported by the lower punch (22), and the upper punch (12) continues to press downwards;
4) The lower second punch (23) and the lower third punch (24) start to descend when bearing pressure is larger than floating force for supporting the floating template, and are just positioned at a specified forming position when contacting the lower fourth punch (25), the upper second punch (12) downwards pressurizes, and finally the upper second punch and the lower third punch are pressed and formed;
5) After pressure forming, the upper punch (11) rises, the upper punch (12) continues to descend, and the female die, the floating template and the core rod (27) descend until the upper end surface of the lower connecting plate (26), so that a pressed blank can be freely released;
6) The upper punch (12) rises, the female die and the core rod (23) reset, and the lower punch (23) and the lower punch (24) of the floating punch rise to the powder loading position under the action of the floating cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110754764.XA CN115582904A (en) | 2021-07-05 | 2021-07-05 | Upper-two-lower-four-die-set structure and working process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110754764.XA CN115582904A (en) | 2021-07-05 | 2021-07-05 | Upper-two-lower-four-die-set structure and working process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115582904A true CN115582904A (en) | 2023-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110754764.XA Pending CN115582904A (en) | 2021-07-05 | 2021-07-05 | Upper-two-lower-four-die-set structure and working process thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN115582904A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116275032A (en) * | 2023-02-28 | 2023-06-23 | 扬州市海力精密机械制造有限公司 | Die carrier device for 5G multi-step powder product molding |
-
2021
- 2021-07-05 CN CN202110754764.XA patent/CN115582904A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116275032A (en) * | 2023-02-28 | 2023-06-23 | 扬州市海力精密机械制造有限公司 | Die carrier device for 5G multi-step powder product molding |
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