CN202162272U - Mould for processing W-shaped elastic bar of passenger special line - Google Patents
Mould for processing W-shaped elastic bar of passenger special line Download PDFInfo
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- CN202162272U CN202162272U CN2011202247886U CN201120224788U CN202162272U CN 202162272 U CN202162272 U CN 202162272U CN 2011202247886 U CN2011202247886 U CN 2011202247886U CN 201120224788 U CN201120224788 U CN 201120224788U CN 202162272 U CN202162272 U CN 202162272U
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Abstract
The utility discloses a mould for processing a W-shaped elastic bar of passenger special line; the mould is used for processing a strip material into the W-shaped elastic bar, comprises a press and is characterized by further comprising a first process mould used for bending both ends of a strip elastic bar and provided with a bumped structure in the middle, a second process mould for moulding a processing part of the first process mould into W shape, and a third process mould for processing and shaping a work piece processed by the second process mould; and above three mould are respectively provided with upper dies and lower dies. The mould for processing the W-shaped elastic bar of the passenger special line provided by the utility model realizes demand for producing different W-shaped elastic bars on general utilization; the mould of the utility model has accurate die assembly and promotes wear of mould pieces greatly.
Description
Technical field
The present invention is a kind of novel Line for Passenger Transportation W shape spring die for processing; The WX type spring of this die production is used on WJ-7 type and the WJ-8 type fastener; This fastener uses having on the tiny fragments of stone, coal, etc. non-shoulder concrete railway board of high-speed railway; Can adapt to 350 kilometers/hour of operation speed, satisfy high-speed railway well and promoted the requirement that the contacting piece quality improves because of speed.
Background technology
At present, the die for processing structure of the Line for Passenger Transportation W shape spring of each enterprise is roughly the same, all be that three process is accomplished, but the versatility of mould is poor, matched moulds is inaccurate and die wear seriously becomes difficult point.The present invention proposes for a difficult problem that solves in the above-mentioned processing just.
The utility model content
The object of the invention; Be mainly and solved the difficult problem in prior art moulding and the discharging; A kind of W shape spring die for processing is provided, adopt this novel Line for Passenger Transportation W shape spring with mould after, not only can realize the general of each W shape spring; And the mould matched moulds that should invent is accurate, and the mold members wearing and tearing also can obtain very big improvement.
The technical scheme that the present invention solves the problems of the technologies described above is: a kind of Line for Passenger Transportation W shape spring die for processing, and being used for strip materials processing is W shape spring, comprises forcing press, it is characterized in that, also comprises:
Be used for first process mould with the two ends bending of strip spring, intermediate projections structure; This first process mould is provided with upper die and lower die; The holding pad 113 of said patrix can slide in upper mounted plate 120 and upper mid plate 114; Last briquetting roller 18 is plugged on mandrel 17 in the middle of the wheel holder 111, on take turns holder 111 and be slidingly connected in the upper mounted plate 120, the counterdie of first process mould comprises both sides punch 116 and middle punch 117; Be screwed onto on the punch retainer 112 with both sides punch 116 and middle punch 117; Compacted under wheel 16 is plugged in the middle of the lower whorl holder 19 with mandrel 17, and lower whorl holder 19 is slidingly connected in lower shoe 11, so that make the operation compact dimensions of winning adjustable;
Be used for the first process mould workpiece is shaped to second process mould of W shape; The patrix of this second process mould comprises briquetting roller 28 and last mandrel 29; Be plugged on the wheel holder 224, on take turns holder 224 upper ends and be connected on the stops 225, upper plate 22 two ends are connected with the pushing block 221 that matches with counterdie bearing 223; The second operation counterdie comprises punch 210; Location-plate 214 is connected on the location-plate holder 213 with locating wheel 215, and lower shake-changing arm wheel 26 and following mandrel 27, bearing 223 are fixedly connected on the rocking arm 216 with bearing mandrel 222, and rocking arm 216 is through rotating shaft 219 rotatable being plugged on the supporting base 217;
Be used for the 3rd process mould that the workpiece with second process mould processing shapes; The patrix of said the 3rd process mould comprises the solid punch 37 that is fixedly connected in the punch retainer 311; Middle punch 36 is connected 37 times middle parts of solid punch; The 3rd operation counterdie comprises backing-out punch 316, make device 316 with whole die 38, play journey die 39, forelimb die 310 is slidingly connected mutually.
Further, 118 of the holding pad 113 of first process mould and die shanks are provided with the spring 119 that holding pad 113 is upspring, and on lower shoe 11, are bolted with the baffle plate 110 that prevents that forming process lower whorl holder 19 from collecting together.
Further, the punch connecting plate 211 of second process mould, punch base 212 are spirally connected with lower shoe 21, on lower shoe, also are provided with the spacing supporting base 220 of restriction rocking arm 216 vertically-actings.
Further; Be connected with the lower connecting plate 313 of the sliding stroke of restriction backing-out punch 316 on the lower shoe 31 of the 3rd process mould; Between backing-out punch 316 and lower shoe 31, be provided with the spring 317 of jack-up backing-out punch 316; Whole die 38, bullet journey die 39, forelimb die 310 are screwed onto in the die block 312, and location-plate 314 is spirally connected with die block 312.
Further, the material of the punch of said first, second, third process mould and die is YG15 or YG20 sintered-carbide die steel.
Beneficial effect of the present invention does, adopt this novel Line for Passenger Transportation W shape spring with mould after, realized the generalization requirement of each W shape spring, and mould matched moulds that should invention is accurate, the mold members wearing and tearing also can obtain very big improvement.Mold materials has good intensity and toughness on selecting, and not only die life reaches more than 1,000,000 times, takes place but also deducted the phenomenon that causes the waste of mode transfer material because of die wear.
Description of drawings
Accompanying drawing 1 is that Line for Passenger Transportation W shape spring is with the mould first operation shaping schematic view.
Accompanying drawing 2 is that Line for Passenger Transportation W shape spring is with the mould second operation shaping schematic view.
Accompanying drawing 3a is the front view of Line for Passenger Transportation W shape spring with mould the 3rd operation moulding;
The vertical view of accompanying drawing 3b Fig. 3 a.
Accompanying drawing 4 is W shape spring raw material sketch mapes.
Accompanying drawing 5a is the Line for Passenger Transportation W shape spring first process mould structural front view;
Fig. 5 b is Fig. 5 a vertical view;
Fig. 5 c is the A-A cutaway view among Fig. 5 b.
Among Fig. 5 a-5c: 11. lower shoes, 12. upper plates, 13. guide pillar seats, 14. guide pillars, 15. linings; 16. compacted under wheel, mandrel about in the of 17., briquetting roller on 18., 19. lower whorl holders, 110. baffle plates; 111. last wheel holder, 112. punch retainers, 113. holding pads, 114. upper mid plates, 115. location-plates; 116. the both sides punch, 117. middle punch, 118 die shanks, 119. springs, 120. upper mounted plates.
Accompanying drawing 6a is the Line for Passenger Transportation W shape spring second process mould structural front view;
Fig. 6 b is the vertical view of Fig. 6 a;
Fig. 6 c is the left view of Fig. 6 a;
Fig. 6 d is the A-A cutaway view of Fig. 6 b.
Among Fig. 6 a-6d: 21. lower shoes, 22. upper plates, 23. guide pillar seats, 24. guide pillars, 25. linings, 26. lower shake-changing arms wheel, 27. times mandrels; Briquetting roller on 28, mandrel on 29., 210. punch, 211. punch connecting plates, 212. punch bases, 213. location-plate holders; 214. location-plate, 215. locating wheels, 216. rocking arms, 217. supporting bases, 218 die shanks, 219. rotating shafts; 220. spacing supporting base, pushing block on 221., 222. bearing mandrels, 223. bearings are taken turns holder, 225. stops on 224..
Accompanying drawing 7a is Line for Passenger Transportation W shape spring the 3rd a process mould structural front view;
Fig. 7 b is the vertical view of Fig. 7 a;
Fig. 7 c is the left view of Fig. 7 a.
Among Fig. 7 a-7c: 31. lower shoes, 32. upper plates, 33. guide pillar seats, 34. guide pillars, 35. linings; 36. middle punch, 37. solid punch, 38. whole dies, 39. play journey die, 310. forelimb dies; 311. punch retainer, 312. die blocks, 13. lower connecting plates, 314. location-plates; 315. the adjustment piece, 316. backing-out punch, 317. springs, 318. die shanks.
The specific embodiment
Line for Passenger Transportation W shape spring belongs to hot-work die with mould, and raw material is heated to 1000 ℃-1030 ℃ through intermediate frequency furnace and carries out punching press again, and totally three road stamping procedures are accomplished, and each operation moulding figure sees accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3.The specific embodiment of the invention is following.Spring raw material of the present invention are that diameter is the 65Si2MnA spring steel of 13mm≤d≤14mm, require two ends not have the horse-hof shape burr after cutting scale, and length ± 1mm sees accompanying drawing 4.On forcing press was selected for use, three process all was a bent into shape, and press-bending power aborning is to adopt empirical equation or the theoretical formula calculating through simplifying usually, owing to be to carry out punching press again after the intermediate frequency furnace heating, so the power of bending accordingly also will reduce.First procedure is the shape of two ends bending, intermediate projections structure, press-bending power computing formula:, select for use 50 tons of punch presses to get final product; Second operation work is a W-shaped piece, and press-bending power computing formula is the same, selects for use 50 tons of punch presses to get final product; Three process is common bent into shape spare, and press-bending power computing formula is the same, selects for use 80 tons of punch presses to get final product.
Concrete mould structure is referring to accompanying drawing 5a-7c.In first operation, following mode structure is that both sides punch 116 is spirally connected with punch retainer 112 with middle punch 117; Compacted under wheel 16 is plugged in the middle of the lower whorl holder 19 with mandrel 17; Lower whorl holder 19 is removable position in lower shoe 11, is slidingly connected, and purpose is that a preface compact dimensions is adjustable; Baffle plate 110 directly is screwed onto on the lower shoe 11, and effect is to prevent that forming process lower whorl holder 19 from collecting together; Last mode structure does; Holding pad 113 is slidingly connected in upper mounted plate 120 and upper mid plate 114, makes it compression, upsprings through spring, and last briquetting roller 18 is plugged in the middle of the wheel holder 111 with mandrel 17; Last wheel holder 111 same removable position in upper mounted plate 120, genus is slidingly connected.
In second operation; Following mode structure does; Punch 210, punch connecting plate 211, punch base 212 are spirally connected with lower shoe 21, and location-plate 214 is screwed onto on the location-plate holder 213 with locating wheel 215, and lower shake-changing arm wheel 26 and following mandrel 27, bearing 223 are fixedly connected on the rocking arm 216 with bearing mandrel 222; rocking arm 216 is pegged graft through rotating shaft 219 and supporting base 217 again, and spacing supporting base 220 limits rocking arms 216 vertically-actings; Last mode structure does, last briquetting roller 28 and last mandrel 29 with on take turns holder 224 and peg graft, stops 225 is screwed onto takes turns holder 224 upper ends, the upper plate 22 two ends pushing block 221 that is spirally connected.
In the 3rd operation; Following mode structure does; Backing-out punch 316 with whole die 38, play journey die 39, forelimb die 310 is slidingly connected mutually, lower connecting plate 313 is sliding strokes of backing-out punch 316, spring 317 plays the effect of compression, jack-up 316 times at backing-out punch; Whole die 38, bullet journey die 39, forelimb die 310 are screwed onto in the die block 312, and location-plate 314 is spirally connected with die block 312; Last mode structure does, solid punch 37 is fixedly connected in the punch retainer 311, and middle punch 36 is screwed onto 37 times middle parts of solid punch.Because all rely on guide pillar, lining to lead during three mold matched moulds, so the location is very accurate.
The characteristics of this mold are that this mold has the characteristics of one module multiple usages, is applicable to that the spring of multiple W shape uses.(1) first process mould, on take turns holder 111 and lower whorl holder 19 can the shift position, satisfy the length of material and all can use, both sides punch 116 is according to the replaceable spare part of material length.(2) second process moulds, location-plate 214 can move in location-plate holder 213, and material length is all available.(3) the 3rd process moulds, according to the W shape spring of different size, punch 36, solid punch 37, whole die 38, bullet journey die 39, forelimb die 310 satisfy the size moulding of different sizes in the middle of can changing.
Selecting for use of mold materials; The moulding section mould blocks is all selected YG15 or YG20 sintered-carbide die steel for use; Its Rockwell hardness is not less than HRC86; And this material has good intensity and toughness, and not only die life reaches more than 1,000,000 times, takes place but also deducted the phenomenon that causes the waste of mode transfer material because of die wear.
Accompanying drawing 5a-5c is the Line for Passenger Transportation W shape spring first process mould structural representation; Raw material is close to location-plate 115, and compacted under wheel 16 is also holding in the palm raw material simultaneously, and this moment, punch press was descending; Holding pad 113 is pushed down material with last briquetting roller 18 and is walked downwards; Take turns 16 moulding through both sides punch 116, middle punch 117 and compacted under, then punch press lifts whole press-bending release.Accompanying drawing 6a-6d is the Line for Passenger Transportation W shape spring second process mould structural representation, and the workpiece after the first operation moulding is placed on above the locating wheel 215, and the two ends straight flange contacts with location-plate 214; Punch press is descending, on to take turns holder 224 simultaneously descending with last pushing block 221, on take turns the 210 one-tenth intermediate shapes of last briquetting roller 28 and punch on the holder 224; Last pushing block 221 is pushed down the bearing 223 on the rocking arm 216; Make the round track walking of whole rocking arm 216 along with rotating shaft 219, lower shake-changing arm wheel 26 makes progress away at this moment, accomplishes workpiece both sides moulding with last briquetting roller 28; Punch press arrives and after bottom dead center returns top dead-centre, and whole action is accomplished.Accompanying drawing 7a-7c is Line for Passenger Transportation W shape spring the 3rd a process mould structural representation; The second operation profiled member is close to the 3rd operation location-plate 314; Simultaneously backing-out punch 316 is holding in the palm and is expecting that punch press is descending, and middle punch 36, solid punch 37 are pushed down material with backing-out punch 316 and walked downwards; Material is not collected together, and final middle punch 36, solid punch 37 and whole die 38, bullet journey die 39, forelimb die 310 make it molded.Punch press is up, and backing-out punch 316 ejects the workpiece after the moulding, whole release.
Claims (6)
1. Line for Passenger Transportation W shape spring die for processing, being used for strip materials processing is W shape spring, comprises forcing press, it is characterized in that, also comprises:
Be used for the two ends bending of strip spring, intermediate projections structure first process mould; This first process mould is provided with upper die and lower die; The holding pad of said patrix (113) can slide in upper mounted plate (120) and upper mid plate (114); Last briquetting roller (18) and mandrel (17) are plugged in the middle of wheel holder (111), on take turns holder (111) and be slidingly connected in the upper mounted plate (120), the counterdie of first process mould comprises both sides punch (116) and middle punch (117); Be screwed onto on the punch retainer (112) with both sides punch (116) and middle punch (117); Compacted under wheel (16) and mandrel (17) are plugged in the middle of the lower whorl holder (19), and lower whorl holder (19) is slidingly connected in lower shoe (11), so that make the operation compact dimensions of winning adjustable;
Be used for the first process mould workpiece is shaped to second process mould of W shape; The patrix of this second process mould comprises briquetting roller (28) and last mandrel (29); Be plugged on the wheel holder (224); Last wheel holder (224) upper end is connected on the stops (225); Upper plate (22) two ends are connected with the pushing block (221) that matches with counterdie bearing (223), and the second operation counterdie comprises punch (210), and location-plate (214) is connected on the location-plate holder (213) with locating wheel (215); Lower shake-changing arm wheel (26) is fixedly connected on the rocking arm (216) with bearing mandrel (222) with following mandrel (27), bearing (223), and rocking arm (216) is plugged on the supporting base (217) through rotating shaft (219) is rotatable;
Be used for the 3rd process mould that the workpiece with second process mould processing shapes; The patrix of said the 3rd process mould comprises the solid punch (37) that is fixedly connected in the punch retainer (311); Middle punch (36) is connected middle part under the solid punch (37); The 3rd operation counterdie comprises backing-out punch (316), makes device (316) and is slidingly connected mutually with whole die (38), bullet journey die (39), forelimb die (310).
2. W shape spring die for processing according to claim 1; It is characterized in that; Be provided with the spring (119) that holding pad (113) is upspring between holding pad of first process mould (113) and die shank (118), on lower shoe (11), be bolted with the baffle plate (110) that prevents that forming process lower whorl holder (19) from collecting together.
3. W shape spring die for processing according to claim 1 and 2; It is characterized in that; The punch connecting plate (211) of second process mould, punch base (212) are spirally connected with lower shoe (21), on lower shoe, also are provided with the spacing supporting base (220) of restriction rocking arm (216) vertically-acting.
4. W shape spring die for processing according to claim 1 and 2; It is characterized in that; Be connected with the lower connecting plate (313) of the sliding stroke of restriction backing-out punch (316) on the lower shoe of the 3rd process mould (31); Between backing-out punch (316) and lower shoe (31), be provided with the spring (317) of jack-up backing-out punch (316), whole die (38), bullet journey die (39), forelimb die (310) are screwed onto in the die block (312), and location-plate (314) is spirally connected with die block (312).
5. W shape spring die for processing according to claim 3; It is characterized in that; Be connected with the lower connecting plate (313) of the sliding stroke of restriction backing-out punch (316) on the lower shoe of the 3rd process mould (31); Between backing-out punch (316) and lower shoe (31), be provided with the spring (317) of jack-up backing-out punch (316), whole die (38), bullet journey die (39), forelimb die (310) are screwed onto in the die block (312), and location-plate (314) is spirally connected with die block (312).
6. W shape spring die for processing according to claim 5 is characterized in that, the punch of said first, second, third process mould and the material of die are YG15 or YG20 sintered-carbide die steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202247886U CN202162272U (en) | 2011-06-29 | 2011-06-29 | Mould for processing W-shaped elastic bar of passenger special line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202247886U CN202162272U (en) | 2011-06-29 | 2011-06-29 | Mould for processing W-shaped elastic bar of passenger special line |
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| Publication Number | Publication Date |
|---|---|
| CN202162272U true CN202162272U (en) | 2012-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011202247886U Expired - Lifetime CN202162272U (en) | 2011-06-29 | 2011-06-29 | Mould for processing W-shaped elastic bar of passenger special line |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102688947A (en) * | 2012-06-29 | 2012-09-26 | 南车戚墅堰机车车辆工艺研究所有限公司 | Railway fastener elastic strip forming die and forming method |
| CN102861830A (en) * | 2012-09-28 | 2013-01-09 | 中铁隆昌铁路器材有限公司 | Flexible material pushing device |
| CN102886448A (en) * | 2012-09-17 | 2013-01-23 | 芜湖世达模具有限公司 | Die mounting support |
| CN103252411A (en) * | 2013-05-17 | 2013-08-21 | 奇昊汽车系统（苏州）有限公司 | Stamping die of thick plate of heavy truck |
| CN103272903A (en) * | 2013-05-31 | 2013-09-04 | 安徽省巢湖铸造厂有限责任公司 | One-time forming system of spring bars former, and forming method of spring bars |
| CN103418653A (en) * | 2013-05-31 | 2013-12-04 | 安徽省巢湖铸造厂有限责任公司 | Elastic strip forming machine |
| CN103831359A (en) * | 2014-03-25 | 2014-06-04 | 中铁隆昌铁路器材有限公司 | Omega type elastic strip oscillating upper die frame |
| CN104588464A (en) * | 2014-12-25 | 2015-05-06 | 河北科杰电力器材制造有限公司 | M-shaped spring forming machine |
| CN105013977A (en) * | 2015-08-05 | 2015-11-04 | 河南省四达仙龙实业有限公司 | Positioning mechanism of bending machine |
| CN105013980A (en) * | 2015-08-05 | 2015-11-04 | 河南省四达仙龙实业有限公司 | Bending machine |
| CN105215166A (en) * | 2015-09-29 | 2016-01-06 | 芜湖奕辰模具科技有限公司 | A kind of spring punch-forming mold |
| CN105363924A (en) * | 2015-12-15 | 2016-03-02 | 中铁隆昌铁路器材有限公司 | Primary molding tool of omega-shaped elastic strips in automatic production |
| CN105363922A (en) * | 2015-12-15 | 2016-03-02 | 中铁隆昌铁路器材有限公司 | Tertiary forming tool for automatically producing omega-shaped elastic strips |
| CN105363923A (en) * | 2015-12-15 | 2016-03-02 | 中铁隆昌铁路器材有限公司 | Final molding tool of omega-shaped elastic strips in automatic production |
| CN106180418A (en) * | 2016-08-31 | 2016-12-07 | 安徽金星预应力工程技术有限公司 | A kind of e spring common molding mould |
| CN106270207A (en) * | 2016-11-02 | 2017-01-04 | 中铁隆昌铁路器材有限公司 | A kind of spring three sequence frock |
| CN108080500A (en) * | 2018-01-10 | 2018-05-29 | 安徽省巢湖铸造厂有限责任公司 | Track traffic e type spring automatic production lines |
| CN108326094A (en) * | 2018-01-10 | 2018-07-27 | 安徽省巢湖铸造厂有限责任公司 | Pressure unit |
| CN115055974A (en) * | 2022-05-31 | 2022-09-16 | 九江捷豹药械有限公司 | Elastic strip cutting and shaping equipment |
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2011
- 2011-06-29 CN CN2011202247886U patent/CN202162272U/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102688947A (en) * | 2012-06-29 | 2012-09-26 | 南车戚墅堰机车车辆工艺研究所有限公司 | Railway fastener elastic strip forming die and forming method |
| CN102886448A (en) * | 2012-09-17 | 2013-01-23 | 芜湖世达模具有限公司 | Die mounting support |
| CN102861830A (en) * | 2012-09-28 | 2013-01-09 | 中铁隆昌铁路器材有限公司 | Flexible material pushing device |
| CN102861830B (en) * | 2012-09-28 | 2014-08-06 | 中铁隆昌铁路器材有限公司 | Flexible material pushing device |
| CN103252411A (en) * | 2013-05-17 | 2013-08-21 | 奇昊汽车系统（苏州）有限公司 | Stamping die of thick plate of heavy truck |
| CN103272903A (en) * | 2013-05-31 | 2013-09-04 | 安徽省巢湖铸造厂有限责任公司 | One-time forming system of spring bars former, and forming method of spring bars |
| CN103418653A (en) * | 2013-05-31 | 2013-12-04 | 安徽省巢湖铸造厂有限责任公司 | Elastic strip forming machine |
| CN103272903B (en) * | 2013-05-31 | 2016-06-08 | 安徽省巢湖铸造厂有限责任公司 | The one-shot forming system of spring forming machine and spring forming method |
| CN103418653B (en) * | 2013-05-31 | 2016-06-08 | 安徽省巢湖铸造厂有限责任公司 | Spring forming machine |
| CN103831359A (en) * | 2014-03-25 | 2014-06-04 | 中铁隆昌铁路器材有限公司 | Omega type elastic strip oscillating upper die frame |
| CN103831359B (en) * | 2014-03-25 | 2015-11-18 | 中铁隆昌铁路器材有限公司 | ω type spring swing type top mold frame |
| CN104588464B (en) * | 2014-12-25 | 2018-07-17 | 河北科杰电力器材制造有限公司 | A kind of M springs molding machine |
| CN104588464A (en) * | 2014-12-25 | 2015-05-06 | 河北科杰电力器材制造有限公司 | M-shaped spring forming machine |
| CN105013980A (en) * | 2015-08-05 | 2015-11-04 | 河南省四达仙龙实业有限公司 | Bending machine |
| CN105013977A (en) * | 2015-08-05 | 2015-11-04 | 河南省四达仙龙实业有限公司 | Positioning mechanism of bending machine |
| CN105215166A (en) * | 2015-09-29 | 2016-01-06 | 芜湖奕辰模具科技有限公司 | A kind of spring punch-forming mold |
| CN105215166B (en) * | 2015-09-29 | 2019-03-29 | 芜湖奕辰模具科技有限公司 | A kind of spring punch-forming mold |
| CN105363923A (en) * | 2015-12-15 | 2016-03-02 | 中铁隆昌铁路器材有限公司 | Final molding tool of omega-shaped elastic strips in automatic production |
| CN105363922A (en) * | 2015-12-15 | 2016-03-02 | 中铁隆昌铁路器材有限公司 | Tertiary forming tool for automatically producing omega-shaped elastic strips |
| CN105363924A (en) * | 2015-12-15 | 2016-03-02 | 中铁隆昌铁路器材有限公司 | Primary molding tool of omega-shaped elastic strips in automatic production |
| CN106180418A (en) * | 2016-08-31 | 2016-12-07 | 安徽金星预应力工程技术有限公司 | A kind of e spring common molding mould |
| CN106270207A (en) * | 2016-11-02 | 2017-01-04 | 中铁隆昌铁路器材有限公司 | A kind of spring three sequence frock |
| CN106270207B (en) * | 2016-11-02 | 2018-01-09 | 中铁隆昌铁路器材有限公司 | A kind of sequence frock of spring three |
| CN108080500A (en) * | 2018-01-10 | 2018-05-29 | 安徽省巢湖铸造厂有限责任公司 | Track traffic e type spring automatic production lines |
| CN108326094A (en) * | 2018-01-10 | 2018-07-27 | 安徽省巢湖铸造厂有限责任公司 | Pressure unit |
| CN115055974A (en) * | 2022-05-31 | 2022-09-16 | 九江捷豹药械有限公司 | Elastic strip cutting and shaping equipment |
| CN115055974B (en) * | 2022-05-31 | 2023-09-22 | 九江捷豹药械有限公司 | Elastic strip cutting shaping equipment |
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Granted publication date: 20120314 |