CN102500710A - Automatic tee shaping equipment and shaping method thereof - Google Patents
Automatic tee shaping equipment and shaping method thereof Download PDFInfo
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- CN102500710A CN102500710A CN2011103270723A CN201110327072A CN102500710A CN 102500710 A CN102500710 A CN 102500710A CN 2011103270723 A CN2011103270723 A CN 2011103270723A CN 201110327072 A CN201110327072 A CN 201110327072A CN 102500710 A CN102500710 A CN 102500710A
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Abstract
The invention discloses automatic tee shaping equipment and a shaping method thereof. The equipment comprises a tee, a bottom plate, and a branch pipe machining die, a tee clamping cavity and a flaring cavity which are coaxially arranged, wherein the tee clamping cavity is formed on an end part of a retainer plate; a branch pipe side of the tee clamping cavity is next to the branch pipe machining die; a core rod is arranged in the flaring cavity; one end of the core rod is fixed on a core rod plate and the other end of the core rod is inserted into the flaring cavity; the core rod plate is connected with a piston rod of a hydraulic cylinder; a needle rod capable of reciprocating is arranged in a die cavity of the branch pipe machining die; the needle rod is driven by a secondary shaping part; the branch pipe machining die is fixed above the bottom plate; the retainer plate can reciprocate along the bottom plate; a main spring is arranged between the retainer plate and the core rod plate; and the branch pipe machining die is a necking die or a flaring die or a shaping die for correcting a center distance between two branch pipes of the tee. By the invention, the tee can be subjected to flaring, necking, shaping and other machining processes simultaneously in the same equipment, the degree of automation is high, the conventional machining process is greatly simplified, and the efficiency is improved.
Description
Technical field
The present invention relates to the mold machining technology field, more particularly, relate to a kind of automatic threeway shaping device and shaping methods thereof.
Background technology
Threeway is a kind of widely used conduit coupling, mainly uses at pipe branch place, applied range.Threeway be formed with several different methods; Comprise punch die pulling method and hydraulic pressure bulging method; The punch die pulling method is to open a hole at the position of stretching arm, puts into finishing die after the heating of pipe blank, the punch die of the stretching arm of in pipe, packing into; Exert pressure to pipe, pipe radial compression and metal flow and stretching at punch die formation arm down to the arm direction.Hydraulic pressure bulging rule is through injecting liquid in pipe fitting, hydraulic cylinder increases the fluid pressure in the pipe fitting, and liquid rises to flange hole is protruding, is extruded into pipe fitting " protruding " font, excises high spot again.After threeway is shaped, also need enlarging or reducing shaping at three ports of threeway, the external diameter or the internal diameter of three ports is processed into suitable dimensions, could be connected with three pipelines, use is at the branching of pipes place.
Existing threeway expander (or draw) technology relies on semi-automatic even manual mode through a plurality of step procedures mostly, and the workman need repeatedly use various tool, inefficiency, and length consuming time, and also yield rate is unstable.Simultaneously, because the shaping of a person in charge's mouth of threeway and a mouth of pipe is a separate operation, is responsible for mouth after the shaping and can not guarantees perpendicularity and concentricity, thereby reduce yield rate with a mouth of pipe.
Summary of the invention
The technical problem that the present invention will solve is that the deficiency to above-mentioned prior art exists provides a kind of high efficiency automatic threeway shaping device and shaping methods thereof, makes enlarging or reducing or shaping completion simultaneously on same equipment of three mouths of pipe of threeway.
The technical scheme that the present invention adopts is: a kind of automatic threeway shaping device, comprise threeway and base plate, and also comprise arm processing mould, triplet card chamber, the enlarging chamber of coaxial setting; Said triplet card chamber is arranged on the arm side next-door neighbour arm processing mould in retainer plate end, triplet card chamber, and said enlarging is provided with plug in the chamber, and said plug one end is fixed on the mandrel plate; The other end inserts the enlarging chamber; Said mandrel plate connects the piston rod of hydraulic cylinder, in the die cavity of said arm processing mould needle bar sliding back and forth is set, and said needle bar is driven by secondary shaping part; Said arm processing mould is fixed on the base plate top; Retainer plate can reciprocatingly slide along base plate, between said retainer plate and mandrel plate, is provided with main spring, and said arm processing mould is reducing die or flaring die or is used to proofread and correct two sizing dies that prop up tube center distancees of threeway.
Said arm processing mould is a reducing die, and said needle bar is a material returned pin.
Said secondary shaping part is made up of fixed head, push rod, push rod fixed head, auxiliary spring; One end of said push rod, material returned pin is fixed on the push rod fixed head; The other end is provided with in the same way, and said push rod is longer than material returned pin, fixed head, and the push rod fixed head between auxiliary spring is set.
The coefficient of elasticity of said main spring is greater than the coefficient of elasticity of auxiliary spring.
Said reducing die is fixed in the reducing die fixed head, also is provided with material returned pin through hole that can supply the slip of material returned pin and the push-rod hole that can supply push rod to slide in the said reducing die fixed head, and said material returned chamber is communicated with the reducing die cavity.
Said secondary shaping part comprises that being arranged on arm processes the push rod fixed head that driving cylinder, the end face of mould one side are fixed with material returned pin and are connected with driving cylinder.
Said secondary shaping part comprises that end face is fixed with the push rod fixed head of material returned pin and push pedal, and said push pedal is provided with material returned avoiding hollow groove, is inserted with the cross bar that is fixed on the retainer plate in the said material returned avoiding hollow groove.
Said base plate is provided with the plane slide rail that retainer plate is reciprocatingly slided.
Be provided with pull bar between said retainer plate and mandrel plate.
A kind of shaping methods of automatic threeway shaping device may further comprise the steps:
S1) threeway to be processed gets in the triplet card chamber of retainer plate;
S2) open hydraulic cylinder, mandrel plate promotes to the reducing die direction, and retainer plate moves to the reducing die direction along base plate;
S3) retainer plate compresses push rod, the auxiliary spring compressive deformation, and push rod fixed head pulling material returned pin rollback, threeway progresses in the reducing die cavity;
S4) hydraulic cylinder continues to provide thrust, the main spring compressive deformation, and plug is to the threeway slip and insert person in charge's mouth of threeway, and expansion, reducing are accomplished;
S5) hydraulic cylinder piston rod rollback, main spring person's movements and expression recover and promote the plug fixed head to leave retainer plate, and plug detaches threeway and is responsible for mouth;
S6) pull bar pulling retainer plate leaves reducing die with mandrel plate, and threeway is left the triplet card chamber and remained on the reducing die clamp position;
S7) auxiliary spring deformation recovers, and the push rod fixed head moves to the threeway direction, and material returned pin slides along the material returned pin through hole threeway is ejected the reducing die cavity, and threeway is from the blanking port blanking.
Compared with prior art, the present invention has the following advantages:
Threeway shaping device of the present invention will treat that the shaping pipe fitting accomplishes enlarging and reducing, shaping simultaneously in same equipment; Automaticity is high; Make present manufacturing procedure obtain simplifying, saved present threeway and be processed in the handling time between a plurality of operation points, use manpower and material resources sparingly.
Threeway shaping device of the present invention shaping whole mouthful of back primary branch mouth and body can guarantee good perpendicularity and concentricity, effectively guarantee the quality and the outward appearance of product.
Description of drawings
Fig. 1 is the side view of a kind of automatic threeway shaping device of the present invention;
Fig. 2 is the vertical view of a kind of automatic threeway shaping device of the present invention;
Fig. 3 is the reducing die structural representation of a kind of automatic threeway shaping device of the present invention;
Fig. 4 is the A portion enlarged drawing of Fig. 1;
Fig. 5 is the side view of the automatic threeway shaping device of another embodiment of the present invention.
The specific embodiment
Embodiment one
A kind of automatic threeway shaping device of the present invention to threeway 21, when being used for diameter with 21 pipe ends of threeway and being condensed to x, expands its diameter of being responsible for mouthful and is y.
Shown in Fig. 1-4.This automatic threeway shaping device is included in secondary shaping part fixed head 1, secondary shaping part, main shaping part and the hydraulic cylinder 12 of coaxial setting on the base plate 13, and wherein main shaping part is arranged between secondary shaping part and the hydraulic cylinder 12.Base plate is provided with the plane slide rail 14 that the movable part that supplies main shaping part slidably reciprocates in the above.
The reducing die fixed head 3 of secondary shaping part is fixed on the base plate 13, and reducing die 8 is set.Two material returned pin through holes that supply material returned pin 4 to slidably reciprocate are arranged in the reducing die fixed head 3, and two push-rod holes that confession push rod 7 slidably reciprocates.Material returned pin 4 is fixed on the push rod fixed head 5 with push rod 7 homogeneous ends, and the other end penetrates material returned pin through hole and the push-rod hole in the reducing die fixed head 3 respectively.Reducing die 8 is as shown in Figure 3; In be provided with the shaping die cavity that is used for 21 pipe end shapings of threeway, shaping die cavity left port is docked with material returned pin through hole, the right output port place is the horn mouth structure; Bell-mouthed opening diameter is greater than the diameter of 21 pipe ends of threeway, and minimum diameter is x.When push rod fixed head 5 and reducing die fixed head 3 were close to, the other end of material returned pin 4 was in the horn mouth 22 of reducing die 8, and the other end of push rod passes reducing die fixed head 3.
Referring to Fig. 4, the caput structure of plug 9 shown in the A portion enlarged drawing of Fig. 1, hydraulic cylinder 12 is fixed on the base plate 13, and the end of its piston rod connects mandrel plate 17, and mandrel plate 17 connects plug 9, and plug 9 diameters are y, the end is hemispherical.
Main shaping part is arranged on the plane slide rail 14, and retainer plate fixed head 15 is directly installed on the plane slide rail 14, is installed with retainer plate 10 on the retainer plate fixed head 15; The one end middle part of retainer plate 10 is provided with the triplet card chamber of indent; Can hold the person in charge of threeway in the triplet card chamber and connect the arm root of being responsible for, when threeway 21 levels placed the triplet card chamber, it was responsible for mouth over against plug 9; Be responsible for and insert in the main tube cavity; The arm root is held together by the cell wall bag in the triplet card chamber with the two arm outer wall side faces that are connected root, and the main tube cavity in the triplet card chamber axially runs through whole retainer plate 10, and plug 9 is provided with in the main tube cavity in triplet card chamber.The nearly triplet card of the caput termination chamber of plug 9; The root of plug is fixed on the mandrel plate 17; Mandrel plate 17 connects the piston rod of hydraulic cylinder, is connected with main spring 6 between mandrel plate 17 and the retainer plate 10, also is provided with pull bar 11 between mandrel plate 17 and the retainer plate 10; The effect of pull bar 11 is axially to limit ultimate range between mandrel plate 17 and the retainer plate 10; When piston rod moves right, the elastic potential energy of main spring 6 make mandrel plate 17 and retainer plate 10 away from, the pull bar 11 between two plates can make distance between the two keep within the specific limits.Pull bar 11 1 ends are fixed on the retainer plate, and it is spacing by nut that through hole corresponding on the mandrel plate 17 is passed in other end activity.When hydraulic cylinder 12 drove plug 9 with mandrel plate 17 reciprocating motions, this structure can also make plug 9 maintenance levels not go here and there.Between mandrel plate 17 and retainer plate 10, be provided with main spring 6; Its coefficient of elasticity is much larger than the coefficient of elasticity of auxiliary spring 2; Make that the decrement of main spring is less than the decrement of auxiliary spring in the process that secondary shaping part fixed head 1 closes up with push rod fixed head 5, retainer plate 10 and mandrel plate 17 close up.
Each component locations of original state is as shown in Figure 1.
At first, threeway 21 is through the top of blanking frame arrival retainer plate 10, and retainer plate moves threeway is entered in the triplet card chamber.The piston rod of hydraulic cylinder applies the thrust to secondary shaping part direction to mandrel plate 17, and retainer plate 10 is moved to the left through plane slide rail 14 with retainer plate fixed head 15, is pushed to secondary shaping part and is resisted against on the push rod 7 until retainer plate 10.Because the coefficient of elasticity of main spring 6 is greater than the coefficient of elasticity of auxiliary spring 2, when retainer plate 10 contact push rods 7 and continue to advance, the decrement of auxiliary spring 2 is obviously greater than the decrement of main spring 6; At this moment; Push rod 7 is moved to the left, and the material returned pin 4 that is fixed on the push rod fixed head 5 is also followed left lateral, because reducing die fixed head 3 is fixed on the base plate 13; So when material returned pin 4 left lateral; Material returned pin 4 withdraws from reducing die 8 simultaneously, and when the rod end of push rod 7 was pressed left by retainer plate 10 gradually, the Zhi Guanduan of threeway also got into reducing in the reducing die 8 near reducing die 8 and through horn mouth gradually.When piston rod continued to be moved to the left, mandrel plate was constantly to left lateral, and when main spring 6 was compressed, plug 9 put in to person in charge's mouth of threeway along the main tube cavity in triplet card chamber.
Because secondary shaping part is fixed on the base plate 13 and does not move, and after main shaping part is pressed close to secondary shaping part, will compress main spring 6 from the thrust of hydraulic cylinder; And then plug 9 inserts person in charge's mouth of threeway 21; Carry out expander to being responsible for mouth, the diameter that is inserted into section of tubing is expanded is y, at this moment; The arm of threeway inserts in the reducing dies 8 through horn mouth 22, in die cavity, is x by undergauge.Shaping is accomplished.
During the piston rod rollback, hydraulic cylinder 12 piston rod rollbacks drive mandrel plate 17 rollbacks.Because the coefficient of elasticity of main spring 6 is greater than the coefficient of elasticity of auxiliary spring 2; So under the situation of equilibrium; The length amount of recovery of main spring 6 is greater than the length amount of recovery of auxiliary spring 6, so mandrel plate 17 at first leaves retainer plate 10, plug 9 also detaches threeway 21 toward hydraulic cylinder 12 directions; Under the screens effect of three grooves of retainer plate 10, plug 9 is pulled out.Pull bar 11 makes retainer plate 10 follow mandrel plate 17 and moves right, and threeway 21 breaks away from retainer plate 10, and the arm of threeway 21 is clamped in the reducing die 8.After main spring 6 recovered length, auxiliary spring 2 also began fast quick-recovery length, and push rod fixed head 5 is under the thrust of auxiliary spring 2, and push rod fixed head 5 drives push rod 7 and advances to reducing die fixed head 3 directions with material returned pin 4.Material returned pin 4 will eject reducing die 8 with threeway 21 under the effect of the power of auxiliary spring 2, threeway 21 shapings are accomplished, from the blanking port blanking.Each position component restPoses.
Embodiment two
On the basis of embodiment one, change the motion structure of material returned pin in the secondary shaping part.Secondary shaping part is made up of push rod fixed head and driving cylinder thereof, has replaced fixed head 1, auxiliary spring, push rod among the embodiment one.Wherein driving cylinder is arranged on reducing die one side, and the fixed head end face is fixed with material returned pin, and the process and the backhaul of material returned pin are controlled by driving cylinder, and wherein driving cylinder is hydraulic cylinder or cylinder.All the other structures are identical with embodiment one, in this not repeat specification.
Embodiment three
Referring to Fig. 5, on the basis of embodiment one, change the motion structure of material returned pin in the secondary shaping part.Secondary shaping part includes push rod fixed head 5, push pedal 18, cross bar 19, has replaced fixed head 1, auxiliary spring 2 and push rod 7 among the embodiment one.The end face of push rod fixed head is fixed with material returned pin and push pedal 18, and push pedal is provided with material returned avoiding hollow groove, is inserted with the cross bar 19 that is fixed on the retainer plate in the material returned avoiding hollow groove.When original state, push rod fixed head 5 is fitted with reducing die fixed head 3, and material returned pin is inserted in the reducing die cavity; When retainer plate during to left lateral; They can move left cross bar 19 at material returned avoiding hollow groove, and when arriving the left end of material returned avoiding hollow groove, cross bar 19 promotes push pedal 18 and moves to left; Make push rod fixed head 5 drive the die cavity that material returned pin leaves reducing die gradually, dodge the space and make threeway be able to insert reducing in the reducing die.When the material returned, earlier to right lateral, cross bar 19 moves in the material returned avoiding hollow groove retainer plate under the driving of hydraulic cylinder; When cross bar 19 arrives the right-hand member of material returned avoiding hollow groove; Cross bar 19 promotes push pedal 18 and moves to right, and makes push rod fixed head 5 drive the material returned pin threeway in the reducing die die cavity is ejected, and accomplishes material returned process.
Embodiment four
On the basis of embodiment two, reducing die is replaced by second flaring die, material returned pin is replaced by second plug, and the process and the backhaul of second plug are controlled by driving cylinder, can make the person in charge of threeway and arm all carry out enlarging processing.
Embodiment five
On the basis of embodiment one or embodiment two, three, reducing die is replaced by in order to proofread and correct the sizing die of two tube center distancees, then can realize threeway person in charge enlarging, the process of arm shaping.
Claims (10)
1. an automatic threeway shaping device comprises threeway and base plate, it is characterized in that: the arm processing mould, triplet card chamber, the enlarging chamber that also comprise coaxial setting; Said triplet card chamber is arranged on the arm side next-door neighbour arm processing mould in retainer plate end, triplet card chamber, and said enlarging is provided with plug in the chamber, and said plug one end is fixed on the mandrel plate; The other end inserts the enlarging chamber; Said mandrel plate connects the piston rod of hydraulic cylinder, in the die cavity of said arm processing mould needle bar sliding back and forth is set, and said needle bar is driven by secondary shaping part; Said arm processing mould is fixed on the base plate top; Retainer plate can reciprocatingly slide along base plate, between said retainer plate and mandrel plate, is provided with main spring, and said arm processing mould is reducing die or flaring die or is used to proofread and correct two sizing dies that prop up tube center distancees of threeway.
2. automatic threeway shaping device according to claim 1 is characterized in that: said arm processing mould is a reducing die, and said needle bar is a material returned pin.
3. automatic threeway shaping device according to claim 2; It is characterized in that: said secondary shaping part is made up of fixed head, push rod, push rod fixed head, auxiliary spring; One end of said push rod, material returned pin is fixed on the push rod fixed head; The other end is provided with in the same way, and said push rod is longer than material returned pin, fixed head, and the push rod fixed head between auxiliary spring is set.
4. automatic threeway shaping device according to claim 3, it is characterized in that: the coefficient of elasticity of said main spring is greater than the coefficient of elasticity of auxiliary spring.
5. automatic threeway shaping device according to claim 4; It is characterized in that: said reducing die is fixed in the reducing die fixed head; Also be provided with material returned pin through hole that can supply the slip of material returned pin and the push-rod hole that can supply push rod to slide in the said reducing die fixed head, said material returned chamber is communicated with the reducing die cavity.
6. automatic threeway shaping device according to claim 2 is characterized in that: said secondary shaping part comprises that being arranged on arm processes the push rod fixed head that driving cylinder, the end face of mould one side are fixed with material returned pin and are connected with driving cylinder.
7. automatic threeway shaping device according to claim 2; It is characterized in that: said secondary shaping part comprises that end face is fixed with the push rod fixed head of material returned pin and push pedal; Said push pedal is provided with material returned avoiding hollow groove, is inserted with the cross bar that is fixed on the retainer plate in the said material returned avoiding hollow groove.
8. according to the arbitrary described automatic threeway shaping device of claim 1 to 7, it is characterized in that: said base plate is provided with the plane slide rail that retainer plate is reciprocatingly slided.
9. automatic threeway shaping device according to claim 8 is characterized in that: be provided with pull bar between said retainer plate and mandrel plate.
10. the shaping methods of an automatic threeway shaping device may further comprise the steps:
S1) threeway to be processed gets in the triplet card chamber of retainer plate;
S2) open hydraulic cylinder, mandrel plate promotes to the reducing die direction, and retainer plate moves to the reducing die direction along base plate;
S3) retainer plate compresses push rod, the auxiliary spring compressive deformation, and push rod fixed head pulling material returned pin rollback, threeway progresses in the reducing die cavity;
S4) hydraulic cylinder continues to provide thrust, the main spring compressive deformation, and plug is to the threeway slip and insert person in charge's mouth of threeway, and expansion, reducing are accomplished;
S5) hydraulic cylinder piston rod rollback, main spring person's movements and expression recover and promote the plug fixed head to leave retainer plate, and plug detaches threeway and is responsible for mouth;
S6) pull bar pulling retainer plate leaves reducing die with mandrel plate, and threeway is left the triplet card chamber and remained on the reducing die clamp position;
S7) auxiliary spring deformation recovers, and the push rod fixed head moves to the threeway direction, and material returned pin slides along the material returned pin through hole threeway is ejected the reducing die cavity, and threeway is from the blanking port blanking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110327072 CN102500710B (en) | 2011-10-25 | 2011-10-25 | Automatic tee shaping equipment and shaping method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110327072 CN102500710B (en) | 2011-10-25 | 2011-10-25 | Automatic tee shaping equipment and shaping method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102500710A true CN102500710A (en) | 2012-06-20 |
| CN102500710B CN102500710B (en) | 2013-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110327072 Expired - Fee Related CN102500710B (en) | 2011-10-25 | 2011-10-25 | Automatic tee shaping equipment and shaping method thereof |
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| CN (1) | CN102500710B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728732A (en) * | 2012-06-26 | 2012-10-17 | 王俊强 | Pipe end forming machine |
| CN103273301A (en) * | 2013-06-13 | 2013-09-04 | 李镇莲 | Ring sleeving device for tee joints |
| CN103357773A (en) * | 2013-07-26 | 2013-10-23 | 温州康通环保科技有限公司 | Clamp pressing type pipe fitting pipe end forming machine |
| CN103357772A (en) * | 2013-07-26 | 2013-10-23 | 温州康通环保科技有限公司 | Pipe end forming equipment for clamp-press type pipe fitting |
| CN103394551A (en) * | 2013-08-12 | 2013-11-20 | 江苏华阳金属管件有限公司 | Shaping device for straight pipe |
| CN103394552A (en) * | 2013-08-12 | 2013-11-20 | 江苏华阳金属管件有限公司 | Automatic shaping device for straight pipe |
| CN103394555A (en) * | 2013-08-12 | 2013-11-20 | 江苏华阳金属管件有限公司 | Straight metal pipe reshaping device |
| CN103394593A (en) * | 2013-07-26 | 2013-11-20 | 温州康通环保科技有限公司 | Hydraulic drive type pipe end forming equipment for press pipe fittings |
| CN106514265A (en) * | 2016-11-27 | 2017-03-22 | 合肥瑞登机械设备有限公司 | Unloading multi-station glasses tube integral forming machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728732A (en) * | 2012-06-26 | 2012-10-17 | 王俊强 | Pipe end forming machine |
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| CN103357773A (en) * | 2013-07-26 | 2013-10-23 | 温州康通环保科技有限公司 | Clamp pressing type pipe fitting pipe end forming machine |
| CN103357772A (en) * | 2013-07-26 | 2013-10-23 | 温州康通环保科技有限公司 | Pipe end forming equipment for clamp-press type pipe fitting |
| CN103394593A (en) * | 2013-07-26 | 2013-11-20 | 温州康通环保科技有限公司 | Hydraulic drive type pipe end forming equipment for press pipe fittings |
| CN103394593B (en) * | 2013-07-26 | 2014-09-10 | 温州康通环保科技有限公司 | Hydraulic drive type pipe end forming equipment for press pipe fittings |
| CN103394551A (en) * | 2013-08-12 | 2013-11-20 | 江苏华阳金属管件有限公司 | Shaping device for straight pipe |
| CN103394552A (en) * | 2013-08-12 | 2013-11-20 | 江苏华阳金属管件有限公司 | Automatic shaping device for straight pipe |
| CN103394555A (en) * | 2013-08-12 | 2013-11-20 | 江苏华阳金属管件有限公司 | Straight metal pipe reshaping device |
| CN106514265A (en) * | 2016-11-27 | 2017-03-22 | 合肥瑞登机械设备有限公司 | Unloading multi-station glasses tube integral forming machine |
| CN106514265B (en) * | 2016-11-27 | 2019-03-15 | 合肥瑞登机械设备有限公司 | Blanking multistation glasses pipe integrally forming machine |
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| CN102500710B (en) | 2013-10-09 |
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