CN201291268Y - Digital control turret punch quadric flanging forming die - Google Patents
Digital control turret punch quadric flanging forming die Download PDFInfo
- Publication number
- CN201291268Y CN201291268Y CNU2008202262028U CN200820226202U CN201291268Y CN 201291268 Y CN201291268 Y CN 201291268Y CN U2008202262028 U CNU2008202262028 U CN U2008202262028U CN 200820226202 U CN200820226202 U CN 200820226202U CN 201291268 Y CN201291268 Y CN 201291268Y
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- die
- pressing mold
- combination lining
- lining
- outer ring
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Abstract
The utility model discloses a secondary flange forming die for a numerical control turret punch press. The forming die consists of an upper die and a lower die and is characterized in that an outer ring and a flange pressing die that are arranged concentrically and fixedly connected with a guide handle are arranged at the lower part of the guide handle; a ring-shaped combined bush spliced by at least three fan-shaped components distributed uniformly at the circumference is movably arranged between the flanged pressing die and the outer ring; a flange structure adapted with the flange pressing die is arranged at the inner surface at the lower end of the combined bush; the top part of the combined bush is connected with an ejector mechanism thereof; a contact surface corresponding to the tapered surface in the middle of the flange pressing die is arranged on the inner surface of the combined bush; and the ejector mechanism of the combined bush is arranged in a mounting hole of the ejector mechanism. The secondary flange forming die is mainly used for the numerical control turret punch press.
Description
Technical field
The utility model relates to a kind of punch press moulding mould special, especially NC turret punch machine secondary flange mould.
Background technology
In the past; solar energy industry manufacturing enterprise is to the punching of the inner bag and the crust sheet material of solar water heating system product; flange processing; many punch presses of general employing; multiple operation; the processing mode of artificial assist location; particularly in the man-hour that adds that relates to stainless steel inner container thermal-collecting tube flange hole; excessive for preventing limit, moulding hole inner edge burr; the rubber seal of incised wound subsequent installation; take to finish earlier pre-punched hole; carry out flange with the artificial upset of plate and by the location, hole again; though like this moulding hole burr is gone to outer rim by inner edge; protect sealing ring, but increased operation and artificial link, greatly reduced workpiece accuracy; working (machining) efficiency and production security.
In recent years,, realized on single device, can finishing automatically the processing of all passes, improved workpiece accuracy and working (machining) efficiency greatly along with a kind of precise high-efficiency numerical control metal plate process equipment---the application of NC turret punch machine in the sector.Wherein, a kind of NC turret punch machine piercing and flanging composite forming die by Chinese utility model patent specification 200720027812.0 records, form by upper mold portion and lower mold portion, it is characterized in that described part of the upper die comprises has the guide tang that unloads charging tray resetting-mechanism installing hole, be provided with flange die and piercing punch concentric with guide tang and that fixedly connected in the guide tang bottom, between piercing punch and flange die, be provided with the charging tray that unloads that cooperates with piercing punch lower stage terrace, unload the charging tray bottom and flush, in unloading charging tray resetting-mechanism installing hole, be provided with and unload the charging tray resetting-mechanism with the flange die; The punch-die that described part of the lower die comprises die shoe and is arranged at hollow on the die shoe, on die shoe, be connected with the stripper of joining with punch-die outer rim cunning, be provided with rubber spring between described stripper and the die shoe, described stripper is connected with die shoe by the fairlead that has head and neck, pilot hole cunning on described fairlead neck and the die shoe is joined, and described fairlead head diameter is greater than the diameter of pilot hole.It with punching and flange compound by two molds be that a mold is finished, not only reduced taking of rotating tower punch rotating disk mould station, reduced also that frequent die change is to the influence of efficient in the process, especially for miscellaneous product processing, the number of molds of required preparation also significantly reduces.Yet, the structure function characteristics of NC turret punch machine and piercing and flanging composite molding mould self thereof, but make the punching burr still be in limit, moulding hole inner edge, in case mould use in sharpening untimely or the punch die gap is improper, just can cause burr to cross the problem of macrolesion sealing ring equally.
Summary of the invention
The utility model is exactly design in order to address the above problem a kind of rational in infrastructure, pass dimensions interchangeability is strong, the piercing and flanging hole is carried out the special-purpose secondary flange of the NC turret punch machine mould of secondary flange processing.
The technical scheme that the utility model adopted is: a kind of NC turret punch machine secondary flange mould, form by part of the upper die and part of the lower die, it is characterized in that described part of the upper die comprises the guide tang that has combination lining ejecting mechanism installing hole, be provided with concentric in the guide tang bottom and the outer ring of fixedlying connected and turn over pressing mold with guide tang, turn over and be movably set with the combination lining that the fan-shaped part that comprises at least 3 circumference uniform distributions pieces together annular between pressing mold and the outer ring, the lower limb that turns over pressing mold and outer ring is extended in described combination lining bottom, described combination lining lower end inner surface is provided with and turns over the adaptive turnup structure of pressing mold, described combination lining lower end outer surface is provided with and makes combination lining lower end and the adaptive radial protrusion structure of flange die and outer ring, described combination lining is turning over the realization flange that is slidingly matched between pressing mold and the outer ring, at this moment turn over pressing mold, tight contact between combination lining and the trim ring three, described combination lining top is connected with combination lining ejecting mechanism, described combination sleeve inner surface is provided with and the corresponding contact-making surface of taper seat that turns over the pressing mold middle part, is provided with combination lining ejecting mechanism in combination lining ejecting mechanism installing hole;
The following fore-set that described part of the lower die comprises die shoe and is arranged at built-in back-moving spring on the die shoe, described fore-set down comprises the upper and lower, the diameter of described fore-set bottom down is greater than the through-hole diameter that is arranged at retainer plate central authorities, described die shoe is provided with down the up stopping means of fore-set, described described retainer plate of fore-set down and die shoe flexibly connect, through hole on the retainer plate is joined with following fore-set top outer rim cunning, is provided with the retainer spring between described retainer plate and the die shoe.
Flexible connection is connected with die shoe by the fairlead that has head and neck for described retainer plate, and the pilot hole cunning on described fairlead neck and the die shoe is joined, and described fairlead head diameter is greater than the diameter of pilot hole.
Described turnup structure comprises inner corner trim and the corresponding external corner that is arranged on the combination lining that is arranged at the flange die bottom.
The concrete characteristics of the utility model also have, and described pressing mold, outer ring and the guide tang of turning over is fixed together by screw by high accuracy seam fit system, and it is comparatively convenient to turn over the pressing mold dismounting; Described down fore-set and die shoe are by the pilot hole relative motion that is slidingly matched.
Described combination lining ejecting mechanism comprises being sleeved on the pressure pad that turns on the pressing mold and being arranged at the guide tang lower peripheral and is furnished with at least three springs that cooperate with the pressure pad around turning over pressing mold.Combination lining ejecting mechanism provides the lining ejecting force, and described spring is six.
The design of described guide tang guiding cylinder has lubricated hydraulic fluid port and helical oil groove, this lubricant method to eliminate the wearing and tearing of mould to NC turret punch machine rotating disk nib, prolongs the service life of mould.
Described lubricated hydraulic fluid port communicates with the combination lining, makes contact-making surface lubricated, be beneficial to the combination lining in contract and stretch out.
Described retainer plate is connected with die shoe by three fairleads of circumference uniform distribution, and the pilot hole cunning on described fairlead and the die shoe is joined, and makes retainer plate finish the retainer action.
The described up stopping means of fore-set down is three limiting gasket that are fixedly set in circumference uniform distribution on the die shoe.Between described following fore-set and die shoe, be provided with by being installed on the packing ring of the screw in compression on the die shoe, to descending the up spacing of fore-set.
Guide tang in the utility model mould structure, pressure pad, spring, die shoe, fairlead and to be used for the parts such as adjustable cap of Compensation Regulation patrix overall height general at the different pass specification moulds of this kind mould, versatility and interchangeability have been realized to greatest extent, die cost reduces, simple and reasonable, processing and manufacturing is easy, of fine qualities, durable, cost performance is higher.
A kind of NC turret punch machine, comprise top rotary table and the top rotary table nib that is arranged on the top rotary table, it is characterized in that in described top rotary table nib, being provided with the part of the upper die, described part of the upper die comprises the guide tang that has combination lining ejecting mechanism installing hole, be provided with concentric in the guide tang bottom and the outer ring of fixedlying connected and turn over pressing mold with guide tang, turn over to be movably set with between pressing mold and the outer ring and comprise that at least 3 cross sections are the combination lining that the fan-shaped parts of circumference uniform distribution piece together annular, the lower limb that turns over pressing mold and outer ring is extended in described combination lining bottom, described combination lining lower end inner surface is provided with and turns over the adaptive turnup structure of pressing mold, described combination lining lower end outer surface is provided with and makes combination lining lower end and flange die and the adaptive radial protrusion structure of trim ring, the described combination lining realization flange that between flange die and trim ring, is slidingly matched, at this moment turn over pressing mold, tight contact between combination lining and the trim ring three, described combination lining top is connected with combination lining ejecting mechanism, described combination sleeve inner surface is provided with and the corresponding contact-making surface of taper seat that turns over the pressing mold middle part, is provided with combination lining ejecting mechanism in combination lining ejecting mechanism installing hole;
Description of drawings
Fig. 1 is that the master of the utility model NC turret punch machine secondary flange mould looks cutaway view;
Fig. 2 is that the master of the utility model secondary flange mould patrix looks partial sectional view;
Fig. 3 is the bottom view of the utility model secondary flange mould patrix;
Fig. 4 is that the master of the utility model secondary flange mould counterdie looks cutaway view;
Fig. 5 is the vertical view cutaway drawing of the utility model secondary flange mould counterdie;
Fig. 6 is that the master of wooden utility model secondary flange mould when the punch press power rail is in bottom dead centre looks cutaway view.
Among the figure: 1, adjustable cap, 2, guide tang, 3, spring, 4, turn over pressing mold, 5, pressure pad, 6, the outer ring, 7, the combination lining, 8, retainer plate, 9, following fore-set, 10, the fore-set back-moving spring, 11, the retainer spring, 12, die shoe, 13, fairlead, 14, the punch press top rotary table, 15, the top rotary table nib, 16, the lower rotary table die holder, 17, punch press lower rotary table, 18, guide tang guiding cylinder, 19, lubricated hydraulic fluid port, 20, helical oil groove, 21, pilot hole, 22, plate, 23, limiting gasket.
The specific embodiment
As shown in Figure 1, a kind of NC turret punch machine secondary flange mould, form by part of the upper die and part of the lower die, described part of the upper die comprises the guide tang 2 that has combination lining ejecting mechanism installing hole, be provided with concentric in guide tang 2 bottoms and the outer ring 6 of fixedlying connected and turn over pressing mold 4 with guide tang 2, turn over and be movably set with the combination lining 7 that the fan-shaped part that comprises at least 3 circumference uniform distributions pieces together annular between pressing mold 4 and the outer ring 6, the lower limb that turns over pressing mold 4 and outer ring 6 is extended in described combination lining 7 bottoms, described combination lining 7 lower end inner surfaces are provided with and turn over the adaptive turnup structure of pressing mold 4, described combination lining 7 lower end outer surfaces are provided with the radial protrusion structure that makes combination lining 7 lower ends adaptive with turning over pressing mold 4 and outer ring 6, described combination lining 7 realizes turning over pressing mold 4 turning over to be slidingly matched between pressing mold 4 and the outer ring 6, tight contact between combination lining 7 and outer ring 6 threes, described combination lining 7 tops are connected with combination lining ejecting mechanism, described combination lining 7 inner surfaces are provided with and the corresponding contact-making surface of taper seat that turns over pressing mold 4 middle parts, are provided with combination lining ejecting mechanism in combination lining ejecting mechanism installing hole; The ring bush of described combination lining 7 after for whole processing is cut at least three equal parts and reconfigures and form, and is the expansion dispersed by its ejecting mechanism effect.External force upwards effect can make its contraction combination slip in the outer ring 6.
The following fore-set 9 that described part of the lower die comprises die shoe 12 and is arranged at built-in fore-set on the die shoe 12, described fore-set 9 down comprises the upper and lower, the diameter of described fore-set 9 bottoms down is greater than the through-hole diameter that is arranged at retainer plate 8 central authorities, spring 10 jack-up are reset during its free state, and the up stopping means of following fore-set that is provided with on the described die shoe is spacing, the described up stopping means of fore-set down is the limiting gasket 23 that is installed on the screw in compression on the die shoe, described retainer plate 8 flexibly connects with die shoe 12, through hole on the retainer plate 8 is joined with following fore-set 9 top outer rim cunnings, is provided with retainer spring 11 between described retainer plate 8 and the die shoe 12.Part of the upper die of the present utility model and part of the lower die are installed in respectively during work in the top rotary table nib 15 and lower rotary table die holder 16 of NC turret punch machine.Directly be installed in the top rotary table nib 15 of NC turret punch machine when being fixed with high accuracy guide tang 2 work of turning over pressing mold 4, this measure has been eliminated general general common stamping die punching punch and has been installed in the gap accumulated error of being brought in the rotating disk nib again by sliding sleeve, has guaranteed that at first upper and lower mould has fabulous proper alignment.
As Fig. 2, shown in Figure 3, the part of the upper die comprises adjustable cap 1, guide tang 2, outer ring 6, pressure pad 5, combination lining 7, turns over pressing mold 4, spring 3 etc.
As Fig. 4, shown in Figure 5, the part of the lower die comprises die shoe 12, retainer plate 8, following fore-set 9, retainer spring 11, fore-set spring 10, fairlead 13, limiting gasket 23 etc.
Use as shown in figs. 1 and 6, the moulding of secondary flange is to have the plate of holding up flange hole vertical with the plate face and carry out secondary flange processing and forming having processed in advance, makes former vertical bore edges abduction flange, forms the slick and sly vertically process of bore edges.Add man-hour, plate 22 is pushed in the neutral gear of lower rotary table on the rotating tower punch by the feed mechanism of NC turret punch machine, make dashing of finishing in advance turn over vertical hole coordinate and accurately be positioned lathe punching press center, whole part of the upper die presses down descending with NC turret punch machine main transmission power rail, the combination lining 7 of part of the upper die touches plate 22 and presses down retainer plate 8, it is come downwards to when fitting with fixed die shoe 12 stops, this at present fore-set 9 stretch into to dash and turn in the vertical hole, the plate inwall is played the effect of setting off, help the follow-up diffusion flange that turns over pressing mold 4.The part of the upper die is continued descending, and combination lining 7 is headed in the outer ring 6 by counterdie, shrinks towards turning over vertical hole outer wall to pre-simultaneously.It is descending with patrix to turn over pressing mold 4, carries out towards turning over vertical bore edges pre-, and during to the punch press power rail to the punching stroke bottom dead centre, and formation die cavity concordant with combination lining 7 bottom surfaces finished the flange moulding.At this moment, turned over the following fore-set 9 that pressing mold 4 depresses and made 10 compressions of fore-set back-moving spring; The retainer plate 8 that the lining 7 that is combined is depressed makes 11 compressions of retainer spring; The pressure pad 5 of lining 7 jack-up of being combined makes spring 3 compressions.After this, the punch press power rail upwards returns, the part of the upper die upwards resets up with the punch press power rail under the effect of the top rotary table mould back-moving spring of punch press, spring 3 promotes combination lining 7 by pressure pad 5, plate 22 withdrawed from turn over pressing mold 4, retainer spring 11 holds up plate 22 by retainer plate 8 simultaneously, and following fore-set 9 is also along with resetting.Mould part separates up and down, and the power rail of NC turret punch machine main transmission is subsequently got back to the stroke top dead-centre, the state whole part of the upper die upwards resets to punching press under the effect of top rotary table mould back-moving spring before, and mould part comes back to initial installment state up and down.So just finished the punching course in a secondary flange moulding hole.By to this secondary flange mould in certain solar energy production enterprise to the practical application in the processing of the stainless steel inner container sheet material of solar water heating system product, show its matching die as piercing and flanging composite molding mould, can guarantee the high-quality requirement of workpiece fully, be worthy of popularization.
Claims (10)
1, a kind of NC turret punch machine secondary flange mould, form by part of the upper die and part of the lower die, it is characterized in that described part of the upper die comprises the guide tang that has combination lining ejecting mechanism installing hole, be provided with concentric in the guide tang bottom and the outer ring of fixedlying connected and turn over pressing mold with guide tang, turn over and be movably set with the combination lining that the fan-shaped part that comprises at least 3 circumference uniform distributions pieces together annular between pressing mold and the outer ring, the lower limb that turns over pressing mold and outer ring is extended in described combination lining bottom, described combination lining lower end inner surface is provided with and turns over the adaptive turnup structure of pressing mold, described combination lining lower end outer surface is provided with and makes combination lining lower end and the adaptive radial protrusion structure of flange die and outer ring, described combination lining is turning over the realization flange that is slidingly matched between pressing mold and the outer ring, described combination lining top is connected with combination lining ejecting mechanism, described combination sleeve inner surface is provided with and the corresponding contact-making surface of taper seat that turns over the pressing mold middle part, is provided with combination lining ejecting mechanism in combination lining ejecting mechanism installing hole;
The following fore-set that described part of the lower die comprises die shoe and is arranged at built-in back-moving spring on the die shoe, described fore-set down comprises the upper and lower, the diameter of described fore-set bottom down is greater than the through-hole diameter that is arranged at retainer plate central authorities, described die shoe is provided with down the up stopping means of fore-set, described retainer plate and die shoe flexibly connect, through hole on the retainer plate is joined with following fore-set top outer rim cunning, is provided with the retainer spring between described retainer plate and the die shoe.
2, NC turret punch machine secondary flange mould according to claim 1 is characterized in that described pressing mold, outer ring and the guide tang of turning over is fixed together by screw by high accuracy seam fit system.
3, a kind of NC turret punch machine secondary flange mould part of the upper die, it is characterized in that described part of the upper die comprises the guide tang that has combination lining ejecting mechanism installing hole, be provided with concentric in the guide tang bottom and the outer ring of fixedlying connected and turn over pressing mold with guide tang, turn over and be movably set with the combination lining that the fan-shaped part that comprises at least 3 circumference uniform distributions pieces together annular between pressing mold and the outer ring, the lower limb that turns over pressing mold and outer ring is extended in described combination lining bottom, described combination lining lower end inner surface is provided with and turns over the adaptive turnup structure of pressing mold, described combination lining lower end outer surface is provided with and makes combination lining lower end and the adaptive radial protrusion structure of flange die and outer ring, described combination lining is turning over the realization flange that is slidingly matched between pressing mold and the outer ring, described combination lining top is connected with combination lining ejecting mechanism, described combination sleeve inner surface is provided with and the corresponding contact-making surface of taper seat that turns over the pressing mold middle part, is provided with combination lining ejecting mechanism in combination lining ejecting mechanism installing hole.
4, NC turret punch machine secondary flange mould according to claim 3 part of the upper die is characterized in that described combination lining ejecting mechanism comprises being sleeved on the pressure pad that turns on the pressing mold and being arranged at the guide tang lower peripheral to be furnished with at least three springs that cooperate with the pressure pad around turning over pressing mold.
5, NC turret punch machine secondary flange mould according to claim 3 part of the upper die is characterized in that described turnup structure comprises inner corner trim and the corresponding external corner that is arranged on the combination lining that is arranged at the flange die bottom.
6, NC turret punch machine secondary flange mould according to claim 3 part of the upper die is characterized in that the guiding cylinder of described guide tang is provided with lubricated hydraulic fluid port and helical oil groove, described lubricated hydraulic fluid port with make up lining and communicate.
7, a kind of NC turret punch machine secondary flange mould part of the lower die, it is characterized in that the following fore-set that described part of the lower die comprises die shoe and is arranged at built-in back-moving spring on the die shoe, described fore-set down comprises the upper and lower, the diameter of described fore-set bottom down is greater than the through-hole diameter that is arranged at retainer plate central authorities, described die shoe is provided with down the up stopping means of fore-set, described retainer plate and die shoe flexibly connect, through hole on the retainer plate is joined with following fore-set top outer rim cunning, is provided with the retainer spring between described retainer plate and the die shoe.
8, NC turret punch machine secondary flange mould according to claim 7 part of the lower die, it is characterized in that three fairleads that have head and neck that the described retainer plate and the flexible connection of die shoe are described retainer plate by circumference uniform distribution are connected with die shoe, pilot hole cunning on described fairlead neck and the die shoe is joined, and described fairlead head diameter is greater than the diameter of pilot hole.
9, NC turret punch machine secondary flange mould according to claim 7 part of the lower die is characterized in that the described up stopping means of fore-set down is three limiting gasket that are fixedly set in circumference uniform distribution on the die shoe.
10, a kind of NC turret punch machine, comprise top rotary table and the top rotary table nib that is arranged on the top rotary table, it is characterized in that in described top rotary table nib, being provided with the part of the upper die, described part of the upper die comprises the guide tang that has combination lining ejecting mechanism installing hole, be provided with concentric in the guide tang bottom and the outer ring of fixedlying connected and turn over pressing mold with guide tang, turn over to be movably set with between pressing mold and the outer ring and comprise that at least 3 cross sections are the combination lining that the fan-shaped parts of circumference uniform distribution piece together annular, the lower limb that turns over pressing mold and outer ring is extended in described combination lining bottom, described combination lining lower end inner surface is provided with and turns over the adaptive turnup structure of pressing mold, described combination lining lower end outer surface is provided with and makes combination lining lower end and turn over pressing mold and the adaptive radial protrusion structure of trim ring, the described combination lining realization flange that between flange die and trim ring, is slidingly matched, described combination lining top is connected with combination lining ejecting mechanism, described combination sleeve inner surface is provided with and the corresponding contact-making surface of taper seat that turns over the pressing mold middle part, is provided with combination lining ejecting mechanism in combination lining ejecting mechanism installing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202262028U CN201291268Y (en) | 2008-11-21 | 2008-11-21 | Digital control turret punch quadric flanging forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202262028U CN201291268Y (en) | 2008-11-21 | 2008-11-21 | Digital control turret punch quadric flanging forming die |
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| Publication Number | Publication Date |
|---|---|
| CN201291268Y true CN201291268Y (en) | 2009-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202262028U Expired - Lifetime CN201291268Y (en) | 2008-11-21 | 2008-11-21 | Digital control turret punch quadric flanging forming die |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102274900A (en) * | 2011-08-13 | 2011-12-14 | 成都锦江电子***工程有限公司 | Mould and process for successively flanging inner edge of arc hole |
| CN103386440A (en) * | 2013-08-06 | 2013-11-13 | 昆山达亚汽车零部件有限公司 | Progressive die flanged by flanging knife and metal sheet flanging processing method |
| CN104707899A (en) * | 2013-12-16 | 2015-06-17 | 盛冈精工工业株式会社 | Mould |
| CN107971396A (en) * | 2016-10-21 | 2018-05-01 | 江苏今道投资发展有限公司 | Lower die fixing device |
| CN113020367A (en) * | 2021-05-26 | 2021-06-25 | 常州孟腾智能装备有限公司 | Elastic rolling edge covering device |
| CN113953362A (en) * | 2021-11-17 | 2022-01-21 | 浙江哈尔斯真空器皿股份有限公司 | Flanging machine die |
| CN114178370A (en) * | 2021-11-08 | 2022-03-15 | 苏州华源中鲈包装有限公司 | Rib carving structure for tank body |
-
2008
- 2008-11-21 CN CNU2008202262028U patent/CN201291268Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102274900A (en) * | 2011-08-13 | 2011-12-14 | 成都锦江电子***工程有限公司 | Mould and process for successively flanging inner edge of arc hole |
| CN103386440A (en) * | 2013-08-06 | 2013-11-13 | 昆山达亚汽车零部件有限公司 | Progressive die flanged by flanging knife and metal sheet flanging processing method |
| CN104707899A (en) * | 2013-12-16 | 2015-06-17 | 盛冈精工工业株式会社 | Mould |
| CN107971396A (en) * | 2016-10-21 | 2018-05-01 | 江苏今道投资发展有限公司 | Lower die fixing device |
| CN113020367A (en) * | 2021-05-26 | 2021-06-25 | 常州孟腾智能装备有限公司 | Elastic rolling edge covering device |
| CN114178370A (en) * | 2021-11-08 | 2022-03-15 | 苏州华源中鲈包装有限公司 | Rib carving structure for tank body |
| CN113953362A (en) * | 2021-11-17 | 2022-01-21 | 浙江哈尔斯真空器皿股份有限公司 | Flanging machine die |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090819 |
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| CX01 | Expiry of patent term |