CN104139114A - Self-return type necking die with sealing structure - Google Patents
Self-return type necking die with sealing structure Download PDFInfo
- Publication number
- CN104139114A CN104139114A CN201410352261.XA CN201410352261A CN104139114A CN 104139114 A CN104139114 A CN 104139114A CN 201410352261 A CN201410352261 A CN 201410352261A CN 104139114 A CN104139114 A CN 104139114A
- Authority
- CN
- China
- Prior art keywords
- die
- spring
- sealed tube
- hermetically
- punch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention relates to a self-return type necking die with a sealing structure. The self-return type necking die with the sealing structure comprises an upper template (1), a lower template (2), a female die (3), a male die (4), a pull rod (6), a spring (7) and the sealing structure, wherein the female die (3) is fixedly installed in the center of the lower template (2); the upper template (1) and the female die (3) are connected through the pull rod (6); the pull rod (6) between the upper template (1) and the female die (3) is sleeved with the spring (7); the upper end of the spring (7) is fixed to the lower surface of the upper template (1); the lower end of the spring (7) is fixed to the upper surface of the female die (3); the male die (4) is installed in the center of the upper template (1); the upper portion of the male die (4) is connected with a male die fixing board (5); the female die (3) and the male die (4) are coaxial; the sealing structure is arranged on the outer side of the spring (7). The self-return type necking die with the sealing structure has the advantages of being stable in working, low in energy consumption, long in service life and convenient in unloading.
Description
Technical field
The present invention relates to technical field of mold, particularly the automatic reposition-type reducing die with hermetically-sealed construction.
Background technology
Reducing is by preshaped good cylindrical element or pipe fitting blank, a kind of forming process of its oral area being dwindled by necking die.The application of reducing operation is more extensive, can be used for the reducing processing of cartridge case, gun shell, steel gas bottle, vertical pipe of bicycle frame, saddle saddle pipe, steel pipe drawing etc.General operation, for to exert pressure to cylindrical element or pipe fitting blank, makes it to slide to the die of reducing die, cylinder material necking end reduced under the pressure-acting of die inwall.The structure of reducing die is divided into without supporting, external support and three kinds of forms of interior external support according to supporting situation, can choose corresponding supporting structure according to the dimension precision requirement of reducing deformation and reducing part.Relatively simple without supporting structure, but in reducing process, coordinate inaccurately, blank deformation is unstable, causes product quality to decline.After necking forming, external impetus equipment need to promote patrix, die is separated to consumed energy with punch.In addition, reducing die is being worked compared with under rugged environment for a long time, and the service life of reducing die is shorter.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art, provide that a kind of stable working, energy input are low, long service life and the discharging automatic reposition-type reducing die with hermetically-sealed construction easily.
Object of the present invention is achieved through the following technical solutions: with the automatic reposition-type reducing die of hermetically-sealed construction, it comprises cope match-plate pattern, lower bolster, die, punch, pull bar, spring and hermetically-sealed construction, die is fixedly mounted on the center of lower bolster, cope match-plate pattern is connected by pull bar with die, the outside of the pull bar between cope match-plate pattern and die is set with spring, the upper end of spring is fixed on the lower surface of cope match-plate pattern, the lower end of spring is fixed on the upper surface of die, punch is arranged on the center of cope match-plate pattern, punch top is also connected with punch retainer, die is coaxial with punch, described hermetically-sealed construction is arranged at the outside of spring, hermetically-sealed construction comprises interior sealed tube and outer sealed tube, the top of interior sealed tube is fixed on cope match-plate pattern, the bottom of interior sealed tube is sleeved on the upper inner of outer sealed tube, the bottom of outer sealed tube is fixed on the upper surface of die, and interior sealed tube slides up and down in outer sealed tube.
The center of described lower bolster is also provided with unloading block, and unloading block is passed lower bolster and coordinated with the inwall of die.
Described spring is high strength cylinder-shaped compression spring.
Between described interior sealed tube and outer sealed tube, be also provided with sealing ring.
The present invention has the following advantages:
1, punch and punch retainer link into an integrated entity, and punch retainer is directly connected with external impetus equipment, and the direction of motion of punch is fixed, and die coordinates with punch precisely, and mould vibrations are little, stable working.
2, punch completes and presses down after reducing, and spring-compressed is laid down after downforce when external impetus equipment, and cope match-plate pattern is pushed up back original position by spring, and punch separates with die, and whole process does not need extra power, and energy input reduces.
3, at spring outside suit hermetically-sealed construction, make spring and external isolation, increase the service life of spring, is conducive to extend the service life of reducing die.
4, at lower bolster middle part, unloading block is set, after necking forming, workpiece is ejected die by unloading block, and discharging is convenient, simple.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
In figure: 1-cope match-plate pattern, 2-lower bolster, 3-die, 4-punch, 5-punch retainer, 6-pull bar, 7-spring, 8-unloading block, sealed tube in 9-, 10-outer sealed tube, 11-sealing ring.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 1, with the automatic reposition-type reducing die of hermetically-sealed construction, it comprises cope match-plate pattern 1, lower bolster 2, die 3, punch 4, pull bar 6, spring 7 and hermetically-sealed construction, die 3 is fixedly mounted on the center of lower bolster 2, cope match-plate pattern 1 is connected by pull bar 6 with die 3, the outside of the pull bar 6 between cope match-plate pattern 1 and die 3 is set with spring 7, the upper end of spring 7 is fixed on the lower surface of cope match-plate pattern 1, the lower end of spring 7 is fixed on the upper surface of die 3, punch 4 is arranged on the center of cope match-plate pattern 1, punch 4 tops are also connected with punch retainer 5, die 3 is coaxial with punch 4, described hermetically-sealed construction is arranged at the outside of spring 7, hermetically-sealed construction comprises interior sealed tube 9 and outer sealed tube 10, the top of interior sealed tube 9 is fixed on cope match-plate pattern 2, the bottom of interior sealed tube 9 is sleeved on the upper inner of outer sealed tube 10, the bottom of outer sealed tube 10 is fixed on the upper surface of die 3, and interior sealed tube 9 slides up and down in outer sealed tube 10.
The center of described lower bolster 2 is also provided with unloading block 8, and unloading block 8 is passed lower bolster 2 and coordinates with the inwall of die 3.
Described spring 7 is high strength cylinder-shaped compression spring.
Between described interior sealed tube 9 and outer sealed tube 10, be also provided with sealing ring 11.
The course of work of the present invention is as follows: shrinkage waiting open workpiece is put into die 3 inside, forcing press moves down punch 4 gradually, adjusts shrinkage waiting open workpiece, and punch 4 is correctly coordinated with shrinkage waiting open workpiece, punch 4 continues to move down under forcing press drives, until coordinate with die 3, and fixing a period of time, after shrinkage waiting open workpiece is fixed-type, forcing press unloading pressure, under the restoring force effect of spring 7, on cope match-plate pattern 1, move, drive punch 4 to separate with die 3; Cope match-plate pattern 1 in the time moving down, interior sealed tube 9 down slidings, cope match-plate pattern is in the time of upper moving, interior sealed tube 9 upward sliding thereupon, in whole sliding process, remains spring 7 and external isolation, extends service life of spring 7.
Claims (4)
1. the automatic reposition-type reducing die with hermetically-sealed construction, it is characterized in that: it comprises cope match-plate pattern (1), lower bolster (2), die (3), punch (4), pull bar (6), spring (7) and hermetically-sealed construction, die (3) is fixedly mounted on the center of lower bolster (2), cope match-plate pattern (1) is connected by pull bar (6) with die (3), the outside of the pull bar (6) between cope match-plate pattern (1) and die (3) is set with spring (7), the upper end of spring (7) is fixed on the lower surface of cope match-plate pattern (1), the lower end of spring (7) is fixed on the upper surface of die (3), punch (4) is arranged on the center of cope match-plate pattern (1), punch (4) top is also connected with punch retainer (5), die (3) is coaxial with punch (4), described hermetically-sealed construction is arranged at the outside of spring (7), hermetically-sealed construction comprises interior sealed tube (9) and outer sealed tube (10), the top of interior sealed tube (9) is fixed on cope match-plate pattern (2), the bottom of interior sealed tube (9) is sleeved on the upper inner of outer sealed tube (10), the bottom of outer sealed tube (10) is fixed on the upper surface of die (3), and interior sealed tube (9) slides up and down in outer sealed tube (10).
2. the automatic reposition-type reducing die with hermetically-sealed construction according to claim 1, it is characterized in that: the center of described lower bolster (2) is also provided with unloading block (8), unloading block (8) is passed lower bolster (2) and is coordinated with the inwall of die (3).
3. the automatic reposition-type reducing die with hermetically-sealed construction according to claim 1, is characterized in that: described spring (7) is high strength cylinder-shaped compression spring.
4. the automatic reposition-type reducing die with hermetically-sealed construction according to claim 1, is characterized in that: between described interior sealed tube (9) and outer sealed tube (10), be also provided with sealing ring (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410352261.XA CN104139114A (en) | 2014-07-23 | 2014-07-23 | Self-return type necking die with sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410352261.XA CN104139114A (en) | 2014-07-23 | 2014-07-23 | Self-return type necking die with sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104139114A true CN104139114A (en) | 2014-11-12 |
Family
ID=51848548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410352261.XA Pending CN104139114A (en) | 2014-07-23 | 2014-07-23 | Self-return type necking die with sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104139114A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061405A (en) * | 2016-07-18 | 2017-08-18 | 阜阳市棋剑节能环保设备有限公司 | The dustproof construction of steel pipe size reducing machine hydraulic jack |
| CN112453216A (en) * | 2020-10-27 | 2021-03-09 | 江南大学 | Necking and diameter-finishing composite die for pipe end of thin-wall pipe fitting |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1058053A (en) * | 1996-08-22 | 1998-03-03 | Sango Co Ltd | Manufacture of return part of pipe end part, and its manufacturing device |
| CN201217035Y (en) * | 2008-05-30 | 2009-04-08 | 比亚迪股份有限公司 | Punching mould structure |
| CN202278073U (en) * | 2011-04-01 | 2012-06-20 | 李智朗 | Numerical control punch AB station guide sleeve |
| CN103240340A (en) * | 2013-05-19 | 2013-08-14 | 苏州***仪器有限公司 | Thermal necking die |
-
2014
- 2014-07-23 CN CN201410352261.XA patent/CN104139114A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1058053A (en) * | 1996-08-22 | 1998-03-03 | Sango Co Ltd | Manufacture of return part of pipe end part, and its manufacturing device |
| CN201217035Y (en) * | 2008-05-30 | 2009-04-08 | 比亚迪股份有限公司 | Punching mould structure |
| CN202278073U (en) * | 2011-04-01 | 2012-06-20 | 李智朗 | Numerical control punch AB station guide sleeve |
| CN103240340A (en) * | 2013-05-19 | 2013-08-14 | 苏州***仪器有限公司 | Thermal necking die |
Non-Patent Citations (1)
| Title |
|---|
| 刘靖岩: "《冷冲压工艺与模具设计》", 31 March 2006, article "缩口模结构", pages: 215 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061405A (en) * | 2016-07-18 | 2017-08-18 | 阜阳市棋剑节能环保设备有限公司 | The dustproof construction of steel pipe size reducing machine hydraulic jack |
| CN107061405B (en) * | 2016-07-18 | 2018-04-13 | 阜阳市棋剑节能环保设备有限公司 | The dustproof construction of steel pipe size reducing machine hydraulic cylinder |
| CN112453216A (en) * | 2020-10-27 | 2021-03-09 | 江南大学 | Necking and diameter-finishing composite die for pipe end of thin-wall pipe fitting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104128503A (en) | Self-return necking die | |
| CN203679000U (en) | Bidirectional bottle cap punching mold | |
| CN109719246A (en) | Oblique window aperture composite die is rushed in a kind of forging | |
| CN202045273U (en) | Vibration damper oil storage cylinder double-end necking die | |
| CN103272926A (en) | Primary stamping forming die | |
| CN103464591B (en) | A kind of steel pipe throat mould | |
| CN104139114A (en) | Self-return type necking die with sealing structure | |
| CN107442646A (en) | A kind of high-precision anti-tripping waste diel | |
| CN102699218A (en) | Necking device of gas cylinder | |
| CN201524743U (en) | Necking mould used for forming pressure vessel sealing heads on hydraulic press by one step | |
| CN201385075Y (en) | Retainer ring special die for wheeled engineering machinery wheel | |
| CN207606241U (en) | The compound upper mould device of shaping punching | |
| CN202291029U (en) | Die for forming steering knuckle bracket of shock absorber | |
| CN104128439A (en) | Continuous production process for bending blanks | |
| CN104139109A (en) | Necking die of lampshade | |
| CN205032533U (en) | Metal can cap punching shear die | |
| CN204975174U (en) | Horizontal frame new construction of multipleram forging hydraulic extrusion press | |
| CN203917629U (en) | A kind of flanging molding die of thin-walled parts | |
| CN102989900A (en) | Cold stamping compound die | |
| CN208437496U (en) | A kind of stamping die for camera case processing | |
| CN203565666U (en) | Universal reverse-jacking bulging die | |
| CN203791468U (en) | Lower edge folding and stretching die structure | |
| CN206779284U (en) | A kind of closing in Bending Mould | |
| CN202621746U (en) | Gas cylinder necking device | |
| CN107030197A (en) | A kind of integrally formed mould of multiple flanging |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141112 |