CN1070742C - Method for producing double-layered stainless steel cup - Google Patents
Method for producing double-layered stainless steel cup Download PDFInfo
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- CN1070742C CN1070742C CN95100007A CN95100007A CN1070742C CN 1070742 C CN1070742 C CN 1070742C CN 95100007 A CN95100007 A CN 95100007A CN 95100007 A CN95100007 A CN 95100007A CN 1070742 C CN1070742 C CN 1070742C
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Abstract
The present invention relates to a method for manufacturing a double-layer stainless steel cup, which comprises the main steps that oil is coated on a stainless steel plate which is used as a blank and has proper dimensions firstly; the stainless steel plate forms a cup body with proper dimensions through punching and deeply drawing for many times; the cup body is overturned, is covered on another die with small dimensions, and is punched in the reverse direction and deeply drawn. Thus, the cup body with an inner layer with small dimensions is formed. The method can complete the processing of a seamless double layer stainless steel cup body in the integral forming mode, has the advantages of simplification of procedures, time saving and low cost, and can ensure the quality and the performances of products. The stress and the strain of the inner part and the surface of the outer side of the cup body are balanced. The surface of the present invention can not harden. Annealing processing is not needed.
Description
The present invention relates to the metal forming field, relate in particular to a kind of integrally formed manufacturing process and mould that does not have the seam double-layered stainless steel cup.
At present, the structure of commercially available double-layered stainless steel cup as shown in Figure 1.Wherein, stainless steel inner container 11 ' is placed on the urceolus 13 ', and makes the urceolus upper limb hold the peristoma 12 ' of this inner bag just, is combined into one with welding manner at this peristoma joining place again, makes this kind double-layered stainless steel cup through grinding and polishing more at last.Because of this kind double-layered stainless steel cup exist to scald mouth and defective such as is difficult for making, not attractive in appearance, necessity of improvement is arranged in fact.Through the structure of the integrally formed double-layered stainless steel cup of no seam of improvement as shown in figure 10, it mainly comprises a stainless steel cup 1, a cup 2 and a bowl cover 3 etc., wherein, cup is made through plastic forming process, and 12 of courage 11 and urceolus are the integrally formed Double layer cup body structure (as Fig. 9) of no seam within it.The double-layered stainless steel cup structure of improvement), and in the power of patenting on April 19th, 1993 double-layered stainless steel cup of this improvement structure has applied for that (application number is 92232985 to utility model patent, the applying date is 1992/09/08, denomination of invention is:.The main technique flow process of making this double-layered stainless steel cup is disclosed in this utility application file: a stainless steel blank is sent to stamping machine carries out punch process, successively steel plate is carried out repeatedly pull and stretch in the same way by diel, make it to form semi-finished product with the height that requires; These semi-finished product are placed on carry out reverse pull and stretch on another mould, just recessedly partly form the internal layer cup, thereby constitute double-layer stainless steel cup (referring to the 4th page the 6th section in the specification of this documents).To this manufacturing process flow, this patent application document is only done the description of overview, do not do fully open, and the concrete forming process under this generality manufacturing process flow, the design of matching die, the setting of condition of molding etc. but has diversified selection and combination, best deflection as metal in each drawing and forming, the Rational flow direction of metal, the design of mould structure is flowed with guaranteeing the smooth and easy of metal, the setting of pull and stretch speed etc. all needs to carry out theory analysis, repetition test and taking all factors into consideration, wherein Da Bufen selection is not very desirable with combination, cause the double-layer stainless steel cup in process or wrinkling easily, or it is damaged, or owing to the surface sclerosis needs the annealing in process in road, back, thereby cost is risen, reduce product quality and made efficient.
The object of the present invention is to provide a kind of manufacturing process and mould that does not have the seam double-layered stainless steel cup, to guarantee that the double-layer stainless steel cup is wrinkle resistant in punching course, not damaged, not need the annealing in process in road afterwards, make efficient to improve, the rate of reducing the number of rejects and seconds and cost are also guaranteed product quality.
For achieving the above object, the concrete forming technology and the mould of double-layered stainless steel cup of the present invention are as follows: with a corrosion resistant plate oil surface as blank; The corrosion resistant plate of oil surface is delivered to stamping machine carry out punch process, successively steel plate is carried out pull and stretch in the same way 3 times, make it to form semi-finished product with the height that requires by cupping tool; These semi-finished product are placed on carry out the reverse pull and stretch first time on another mould, make whole semi-finished product from inside to outside reverse flip become goblet; This goblet is covered on another mould and carry out reverse pull and stretch again, make recessed portion form the internal layer cup, then constitute jointless double-layered stainless steel cup cup; Wherein, in punching course, the upper and lower die holder of all cupping tools all is movable die holder, and that upper and lower mould post all is an activity, one is fixing, simultaneously, the cup end periphery of the cup of each operation bending place that makes progress all forms the inclined-plane of circular arc bending with suitable angular range (25 °～45 °); Then the open circumferential with the double-layered stainless steel cup cup requires highly by institute; Synthetic finished product then matches cup and cup.
Manufacturing process of the present invention and mould can be finished a kind of processing of not having seam double-layered stainless steel cup cup in integrally formed mode.Because through repeatedly pull and stretch and repeatedly reverse pull and stretch in the same way, simultaneously, rational metal flow direction, rational cupping tool structure and flowing velocity have been designed, thereby make suffered stress of cup medial and lateral surface microstructure and deflection reach balance, make its surperficial unlikely sclerosis, do not need annealing in process, also avoided in process cup wrinkling, damaged, improved manufacturing efficient, reduce cost, also guaranteed product quality.
Below in conjunction with drawings and Examples the present invention is further described.
Fig. 1 is the organigram of existing double-layered stainless steel cup;
Fig. 2 is the flow chart of double-layered stainless steel cup manufacturing process of the present invention;
Fig. 3 is the corrosion resistant plate blank oiling schematic diagram of manufacturing process of the present invention;
Fig. 4 A be manufacturing process of the present invention and mould the first time drawing and forming the initial state schematic diagram;
Fig. 4 B be manufacturing process of the present invention and mould the first time drawing and forming the done state schematic diagram;
Fig. 5 A be manufacturing process of the present invention and mould the second time drawing and forming the initial state schematic diagram;
Fig. 5 B be manufacturing process of the present invention and mould the second time drawing and forming the done state schematic diagram;
Fig. 6 A is the initial state schematic diagram of the drawing and forming for the third time of manufacturing process of the present invention and mould;
Fig. 6 B is the done state schematic diagram of the drawing and forming for the third time of manufacturing process of the present invention and mould;
Fig. 7 A is the promptly for the first time reverse pull and stretch initial state shaping schematic diagram of the 4th pull and stretch of manufacturing process of the present invention and mould;
Fig. 7 B is the promptly for the first time reverse pull and stretch done state shaping schematic diagram of the 4th pull and stretch of manufacturing process of the present invention and mould;
Fig. 8 A is the promptly for the second time reverse pull and stretch initial state shaping schematic diagram of the 5th pull and stretch of manufacturing process of the present invention and mould;
Fig. 8 B is the promptly for the second time reverse pull and stretch done state shaping schematic diagram of the 5th pull and stretch of manufacturing process of the present invention and mould;
Fig. 9 is the cutaway view of the double-layered stainless steel cup cup of employing manufacturing process of the present invention and mould manufacturing shaping;
Figure 10 is the cutaway view of the double-layered stainless steel cup of employing manufacturing process of the present invention and mould manufacturing shaping.
Figure 2 shows that the flow chart of double-layered stainless steel cup manufacturing process of the present invention: with a corrosion resistant plate oil surface that is used as blank; The corrosion resistant plate of oil surface is delivered to stamping machine carry out punch process, successively steel plate is carried out pull and stretch in the same way 3 times, make it to form semi-finished product with the height that requires by diel; These semi-finished product are placed on carry out reverse pull and stretch on another mould, make whole semi-finished product from inside to outside reverse flip become goblet; This goblet is covered on another mould and carry out reverse pull and stretch again, make recessed portion form the internal layer cup, then constitute no seam and do not need the double-layered stainless steel cup cup of annealing in process; With the open circumferential of double-layered stainless steel cup cup by require height; Synthetic finished product then matches cup and cup.
Figure 3 shows that the corrosion resistant plate blank oiling schematic diagram of manufacturing process of the present invention.Its oiling process is: will tailor into required very little to the greatest extent stainless steel blank F and be placed on the oiler, be coated with on the cylinder A of oiler the high temperature resistance oil plant that is mixed in 2: 1: 2 ratios by the young oil of pressing plate oil, ingot, lubricating oil is completely arranged, the cylinder A of blank F through rolling makes the even cloth of high temperature resistance oil plant in its surface.Shown in Fig. 4 A, 4B, the corrosion resistant plate blank F that the surface is coated with full high temperature resistance oil plant is placed on and carries out the pull and stretch first time on the stamping machine, is bar shape and has appropriate depth and the semi-finished product F1 of width to form one.To be nested with through the semi-finished product F1 of drawing and forming for the first time and on a suitable mold 2, carry out pull and stretch second time (shown in Fig. 5 A, 5B), and make these semi-finished product F1 pull and stretch once more, thereby form the dark semi-finished product F2 of the pull and stretch semi-finished product F1 first time; Then semi-finished product F2 is taken off to be set in and carry out for the third time pull and stretch on another suitable mold 3 (as Fig. 6 A, shown in the 6B), make semi-finished product F2 pull and stretch become required shape, to be nested with through the semi-finished product F3 upset of drawing and forming for the third time then and on the mould 4 more less, carry out the i.e. reverse pull and stretch (shown in Fig. 7 A, 7B) for the first time of the 4th pull and stretch, make the whole from inside to outside cup F4 that is turned into of whole semi-finished product F3 than cupping tool 3 areas for the third time; Then cup F4 is upside down in than (shown in Fig. 8 A, 8B) on the mould 5 that the 4th time the cupping tool area is less and carries out the i.e. reverse pull and stretch for the second time of the 5th pull and stretch, make cup F4 be subjected to punching press and inwardly concave, have double-deck cup F5 thereby form.By instrument with double-deck cup F5 open circumferential by suitable height, this cup F5 cut place is bent inwards so that cup F5 can be embedded on cup G with matching, constitute double-layered stainless steel cup finished product as shown in figure 10.
Carry out the first time during pull and stretch, shown in Fig. 4 A, the steel plate blank F that will be cut into suitable size and oiling earlier suitably is placed on the die shoe 11 of mould 1, be provided with a mould post 12 in this die shoe 11, this mould post 12 is the state of maintaining static, do not place at die shoe 11 on the end of steel plate F and be connected with push rod 13, this push rod 13 is connected with oil hydraulic cylinder, and die shoe 11 is moved up under the effect of oil hydraulic cylinder by push rod 13; Be placed at die shoe 11 on the end of steel plate F, be provided with upper bolster 14 on the other side, be pivoted with the push rod 16 of device in oil hydraulic cylinder on this upper bolster 14, in upper bolster 14, be equipped with mobilizable by a rod member and with fixed mould post 12 corresponding mould posts 15.
In first time during pull and stretch, shown in Fig. 4 B, upper bolster 14 is driven by oil hydraulic cylinder with mould post 15 and moves down, to be placed on after steel plate F on the die shoe 11 tightly is pressed against on the die shoe 11 at upper bolster 14, because of acting on driving pressure on the upper bolster 14 greater than the driving pressure that acts on the die shoe 11, and owing to the mould post 12 that is arranged in die shoe 11 is inactive state, so last, die shoe 14,11 continue downwards to promote simultaneously, with suitable speed (2.0-2.5 cel) when steel plate is bent downwards, because the reaction force of 12 couples of steel plate F of mould post, to force steel plate from bottom to top by pull and stretch, through appropriate time such as after the several seconds, to go up, die shoe 14,11 separate, and take out the semi-finished product F1 of pull and stretch for the first time, promptly finish pull and stretch action for the first time.
In addition, the place has the inclination lead angle 121 that is about 20 °-45 ° because of mould post 12 upper ends periphery, at mould post 12 with steel plate F from bottom to top during pull and stretch, make steel plate F abut in lead angle 121 places, and be bent into one along lead angle 121 and be circular-arc inclined-plane, the stress average mark that pull and stretch is produced is dispersed on the inclined-plane, on the unlikely inflection point that concentrates on semi-finished product F1 and produce to continue and split.
For the second time during pull and stretch, shown in Fig. 5 A, the semi-finished product F1 of drawing and forming is displaced on another suitable mold 2 for the first time earlier, semi-finished product F1 is nested with at external diameter again and is slightly less than on the upper bolster 22 of semi-finished product F1 bore, be provided with a fixed die post 23 in this upper bolster 22, one end of upper bolster 22 is connected with push rod 24 pivots are moving, on push rod 24, oil hydraulic cylinder is installed, has a die shoe 25 that matches with upper bolster 22 with the other end corresponding section of upper bolster 22, in die shoe 25, have corresponding with mould post 23, mobilizable mould post 26 is equipped with on the die shoe 25 and the moving push rod 27 that is connected of oil hydraulic cylinder pivot.
In second time during pull and stretch, shown in Fig. 5 B, die shoe 25 is driven by oil hydraulic cylinder with mould post 26 and moves up, the inboard cambered surface of semi-finished product F1 that will be placed on the upper bolster 22 when die shoe 25 tightly is pressed against on the upper bolster 22, because of acting on driving pressure on the die shoe 25 greater than the driving pressure that acts on the upper bolster 22, be inactive state owing to be arranged in the mould post 23 of upper bolster 22 simultaneously, so last, die shoe 22, during 25 upwards lasting simultaneously propellings, the reaction force of 23 couples of semi-finished product F1 of mould post will force semi-finished product F1 from top to bottom by pull and stretch, through appropriate time such as after the several seconds, to go up, die shoe 22,25 are separated, and can obtain the semi-finished product F2 tall and thin than semi-finished product F1.
When carrying out pull and stretch, because of having, the end periphery place of mould post 23 is 25 °-45 ° inclination lead angle 231, when mould post 23 with semi-finished product F1 from top to bottom during pull and stretch, semi-finished product F1 abuts in lead angle 231 places, and be bent into a circular-arc inclined-plane along lead angle 231, but the stress average mark that pull and stretch is produced is dispersed on the inclined-plane, on the unlikely inflection point that concentrates on semi-finished product F2 and produce and break.
For the third time during pull and stretch, as shown in Figure 6A, the semi-finished product F2 that the second time, pull and stretch became is moved on the required mould 3, semi-finished product F2 is nested with at external diameter again and is slightly less than on the upper bolster 31 of semi-finished product F2 bore, be provided with a fixed die post 32 in this upper bolster 31, one end of upper bolster 31 and push rod 23 pivot mutually are dynamically connected, on the push rod 33 oil hydraulic cylinder is installed, be provided with a die shoe 34 that can match with the other end opposite position of upper bolster 31 with upper bolster 31, corresponding mould post 32 places are provided with a mobilizable mould post 35 in die shoe 34, are equipped with on the die shoe 34 and the oil hydraulic cylinder push rod 36 that is dynamically connected of pivot mutually.
In pull and stretch program for the third time, shown in Fig. 6 B, die shoe 34 is driven by oil hydraulic cylinder with mould post 35 and moves up, after inboard cambered surface that die shoe 34 will be placed on the semi-finished product F2 on the upper bolster 31 tightly is pressed against on the upper bolster 31, owing to act on driving pressure on the die holder 34 greater than the driving pressure that acts on the die holder 31, and the mould post 32 that is arranged in upper bolster 31 remains static, so last, die shoe 31, during 34 upwards lasting simultaneously propellings, the reaction force of 32 couples of semi-finished product F2 of mould post will force semi-finished product F2 from top to bottom by pull and stretch, through appropriate time such as after the several seconds, to go up, die shoe 31,34 are separated, and can obtain the semi-finished product F3 of required specification.
When carrying out pull and stretch, because of mould post 32 end periphery places have about 25 °-45 ° inclination lead angle 321, at mould post 32 with semi-finished product F2 from top to bottom during pull and stretch, semi-finished product F2 abuts in lead angle 321 places, be bent into a circular-arc inclined-plane along lead angle 321, the stress that pull and stretch is produced can disperse on the inclined-plane fifty-fifty, on the unlikely inflection point that concentrates on semi-finished product F3 and produce and break.
The 4th pull and stretch is promptly for the first time oppositely during pull and stretch, shown in Fig. 7 A, the semi-finished product F3 of drawing and forming is for the third time moved on the mould 4, again semi-finished product F3 is nested with on die shoe 41, be provided with the mould post 42 of an activity in the die shoe 41, one end of die shoe 41 and push rod 43 pivots are dynamically connected, above the push rod 43 oil hydraulic cylinder is installed, be provided with a upper bolster 44 that matches with die shoe 41 with the other end opposite position of die shoe 41, corresponding mould post 42 places are provided with a fixed die post 45 in upper bolster 44, and upper bolster 44 is equipped with and the oil hydraulic cylinder push rod 46 that is dynamically connected of pivot mutually.
In the 4th drawing process, shown in Fig. 7 B, die shoe 41 is driven by oil hydraulic cylinder with mould post 42 and moves up, when die shoe 41 will place after semi-finished product F3 on the die shoe 41 tightly is pressed against on the upper bolster 44, because act on driving pressure on the die shoe 41 greater than the driving pressure that acts on the upper bolster 44, and the mould post 45 between upper bolster 44 is inactive state, so last, die shoe 44, during 41 upwards lasting simultaneously propellings, the reaction force of 45 couples of semi-finished product F3 of mould post will force the reverse from top to bottom pull and stretch of semi-finished product F3, through appropriate time such as after the several seconds, to go up, die shoe 44,41 are separated, and can obtain the cup F4 that the whole from inside to outside reverse flip of semi-finished product F3 is formed.Through the semi-finished product F3 that is shaped after the pull and stretch in the same way for three times again through the 4th time reverse pull and stretch, make the stress that crystal grain produced and the distortion on its surface, medial and lateral can reach balance, make its surperficial unlikely sclerosis, or avoid stress and distortion concentrations to produce in a side surface and break.
When carrying out pull and stretch, because of mould post 45 end periphery places have about 25 °-45 ° inclination lead angle 451, when mould post 45 with semi-finished product F3 from top to bottom during pull and stretch, semi-finished product F3 abuts in lead angle 451 places, and be bent into a circular-arc inclined-plane downwards along lead angle 451, but the stress average mark that pull and stretch is produced is dispersed on the inclined-plane, on the unlikely inflection point that concentrates on cup F4 and produce and break.
Last the 5th pull and stretch is promptly for the second time oppositely during pull and stretch, shown in Fig. 8 A, cup F4 with the 4th drawing and forming moves on the mould 5 earlier, again cup F4 is nested with on die shoe 51, be provided with a movable mold post 52 in the die shoe 51, die shoe 51 1 ends and push rod 53 pivot mutually are dynamically connected, push rod 53 is provided with oil hydraulic cylinder, be provided with a upper bolster 54 that matches with die holder 51 with die shoe 51 other end opposite positions, be provided with a fixing mould post 55 corresponding to mould post 52 places in upper bolster 54, upper bolster 54 is provided with and the oil hydraulic cylinder push rod 56 that is dynamically connected of pivot mutually.
In the 5th drawing process, shown in Fig. 8 B, die shoe 51 is driven by oil hydraulic cylinder with mould post 52 and moves up, when die shoe 51 will be placed on after cup F4 on the die shoe 51 tightly is pressed against on the upper bolster 54, because of acting on driving pressure on the die shoe 51 greater than the driving pressure that acts on the upper bolster 54, and the mould post 55 that is arranged in upper bolster 54 is inactive state, more than the institute, die shoe 54, during 51 upwards lasting simultaneously propellings, the reaction force of 55 couples of cup F4 of mould post will force cup F4 to be reversed pull and stretch from top to bottom, making cup F4 be subjected to punching press inwardly concaves, through appropriate time such as after the several seconds, to go up, die shoe 54,51 are separated, and can obtain one and have double-deck cup F5.
When carrying out pull and stretch, because of mould post 55 end periphery places have 25 ° of-45 ° of inclination lead angles 551, at mould post 55 with cup F4 from top to bottom during pull and stretch, cup F4 abuts in lead angle 551 places, be bent into a circular-arc inclined-plane downwards along lead angle 551, the stress average mark that pull and stretch is produced is dispersed on the inclined-plane, and unlikely concentrate on the cup F5 inflection point and producing broken.
Through obtaining cup F5 after above-mentioned five drawing and formings, utilize instrument with open circumferential by suitable height (as shown in Figure 9), cup F5 cut place is bent inwards, cup F5 is embedded on the cup G that cooperates with it constitutes finished product (as shown in figure 10).
Claims (7)
1, a kind of double-layered stainless steel cup manufacturing process, its processing step mainly comprises: with corrosion resistant plate (F) oil surface as blank; The corrosion resistant plate (F) of oil surface is delivered to stamping machine carry out punch process, successively steel plate is carried out repeatedly pull and stretch in the same way, make it to form semi-finished product (F3) with the height that requires by cupping tool; These semi-finished product (F3) are placed on carry out reverse pull and stretch on the other mould, make recessed portion form the internal layer cup, thereby constitute double-layer stainless steel cup (F5); Again with the open circumferential of double-layer stainless steel cup (F5) by require height; Synthetic finished product then matches cup (F5) and cup (G).It is characterized in that: corrosion resistant plate (F) through three times in the same way pull and stretch form semi-finished product (F3), semi-finished product (F3) are through twice reverse pull and stretch formation double-layer stainless steel cup (F5); In addition, in punching course, the upper and lower mould post of all cupping tools be one fixing, one is dynamically connected by connecting rod and oil hydraulic cylinder pivot, and upper and lower die holder all is dynamically connected by connecting rod and oil hydraulic cylinder pivot; Simultaneously, oil hydraulic cylinder acts on the driving pressure of movable die holder of movable mold post one side greater than the driving pressure of the movable die holder that acts on fixed die post one side.
2, a kind of double-layered stainless steel cup manufacturing process as claimed in claim 1, it is characterized in that: carrying out the first time in the same way during pull and stretch, steel plate earlier that cutting is suitable and oiling is placed on the die shoe of mould (1), upper bolster (14) is driven by oil hydraulic cylinder with mould post (15) and moves down, the steel plate (F) that will be placed on the die shoe (11) at upper bolster (14) tightly is pressed against die shoe (11) afterwards, because of acting on driving pressure on the upper bolster (14) greater than the driving pressure that acts on the die shoe (11), and owing to the mould post (12) that is arranged in die shoe (11) is inactive state, more than the institute, die shoe (14), (11) continue downwards simultaneously to promote, when steel plate being bent downwards with suitable speed, because mould post (12) is to the reaction force of steel plate (F), to force steel plate (F) from bottom to top by pull and stretch, through taking out the semi-finished product (F1) of pull and stretch for the first time after the several seconds.
3, a kind of double-layered stainless steel cup manufacturing process as claimed in claim 1, it is characterized in that: carrying out the second time in the same way during pull and stretch, the semi-finished product (F1) of the drawing and forming first time are nested with at external diameter are slightly less than on the upper bolster (22) of semi-finished product (F1) bore, die shoe (25) is driven by oil hydraulic cylinder with mould post (26) and moves up, when inboard cambered surface that die shoe (25) will be placed on the semi-finished product (F1) on the upper bolster (22) tightly is pressed against after upper bolster (22) goes up, because of acting on driving pressure on the die shoe (25) greater than the driving pressure that acts on the upper bolster (22), be inactive state owing to be arranged in the mould post (23) of upper bolster (22) simultaneously, so last, die shoe (22), when (25) upwards continuing to advance simultaneously, mould post (23) will force semi-finished product (F1) from top to bottom by pull and stretch with the reaction force to semi-finished product (F1), through taking out the semi-finished product (F2) of pull and stretch for the second time after the several seconds.
4, a kind of double-layered stainless steel cup manufacturing process as claimed in claim 1, it is characterized in that: when carrying out for the third time in the same way pull and stretch, the semi-finished product (F2) of the drawing and forming second time are nested with at external diameter are slightly less than on the upper bolster (31) of semi-finished product (F2) bore, die shoe (34) is driven by oil hydraulic cylinder with mould post (35) and moves up, when inboard cambered surface that die shoe (34) will be placed on the semi-finished product (F2) on the upper bolster (31) tightly is pressed against after upper bolster (31) goes up, because of acting on driving pressure on the die shoe (34) greater than the driving pressure that acts on the upper bolster (31), simultaneously owing to the mould post (32) that is arranged in upper bolster (31) remains static, the place is last, die shoe (31), when (34) upwards continuing to advance simultaneously, mould post (32) will force semi-finished product (F2) from top to bottom by pull and stretch to the reaction force of semi-finished product (F2), take out the semi-finished product of pull and stretch (F3) for the third time through after the several seconds.
5, a kind of double-layered stainless steel cup manufacturing process as claimed in claim 1, it is characterized in that: carrying out the first time oppositely during pull and stretch, the semi-finished product (F3) of pull and stretch formation for the third time are nested with on the die shoe (41) of another mould (4), die shoe (41) moves up because of oil hydraulic cylinder drives with mould post (42), when will being placed on semi-finished product (F3) on the die shoe (41), die shoe (41) tightly is pressed against after upper bolster (44) goes up, because act on driving pressure on the die shoe (41) greater than the driving pressure that acts on the upper bolster (44), and the mould post (45) that is positioned among the upper bolster (44) is inactive state, so last, die shoe (44), when (41) upwards continuing to advance simultaneously, mould post (45) will force the reverse from top to bottom pull and stretch of semi-finished product (F3) to the reaction force of semi-finished product (F3), take out the cup (F4) that the whole from inside to outside reverse flip of semi-finished product (F3) is formed after the several seconds.
6, a kind of double-layered stainless steel cup manufacturing process as claimed in claim 1, it is characterized in that: carrying out the second time oppositely during pull and stretch, with the 4th pull and stretch promptly for the first time oppositely the cup (F4) of drawing and forming be nested with on the die shoe (51) of mould (5), die shoe (51) is driven by oil hydraulic cylinder with mould post (52) and moves up, when will being placed on cup (F4) on the die shoe (51), die shoe (51) tightly is pressed against after upper bolster (54) goes up, because of acting on driving pressure on the die shoe (51) greater than the driving pressure that acts on the upper bolster (54), and the mould post (55) that is arranged in upper bolster (54) is inactive state, more than the institute, die shoe (54), when (51) upwards continuing to advance simultaneously, mould post (55) will force cup (F4) to be reversed pull and stretch from top to bottom to the reaction force of cup (F4), make cup (F4) be subjected to punching press and inwardly concave, have double-deck cup (F5) through taking out after the several seconds.
7, as any described a kind of double-layered stainless steel cup manufacturing process of claim 2-6, it is characterized in that: in punching course, pull and stretch speed is the 2.0-2.5 cel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95100007A CN1070742C (en) | 1995-03-02 | 1995-03-02 | Method for producing double-layered stainless steel cup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95100007A CN1070742C (en) | 1995-03-02 | 1995-03-02 | Method for producing double-layered stainless steel cup |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1130107A CN1130107A (en) | 1996-09-04 |
| CN1070742C true CN1070742C (en) | 2001-09-12 |
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| CN95100007A Expired - Fee Related CN1070742C (en) | 1995-03-02 | 1995-03-02 | Method for producing double-layered stainless steel cup |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102357592A (en) * | 2011-07-11 | 2012-02-22 | 昆山飞宇精密模具有限公司 | Combination mould for deeply drawing work-pieces |
| CN104438949B (en) * | 2014-12-22 | 2016-08-24 | 靖江市同安汽车配件制造有限公司 | A kind of train shock bracket processing technique |
| CN107186115A (en) * | 2017-07-13 | 2017-09-22 | 永康市超朗工贸有限公司 | The production method of bulging shell welding vacuum tank after first stretching |
| CN109821985B (en) * | 2019-04-11 | 2020-04-28 | 成都纵远机械设备有限公司 | Manufacturing method of high-radioactivity waste glass solidified body storage tank |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2135976Y (en) * | 1992-09-08 | 1993-06-16 | �林正明 | Improved structure of double-deck stainless steel cup |
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1995
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2135976Y (en) * | 1992-09-08 | 1993-06-16 | �林正明 | Improved structure of double-deck stainless steel cup |
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| CN1130107A (en) | 1996-09-04 |
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