CN105583321A - Closing device for sealing head and closing method - Google Patents

Closing device for sealing head and closing method Download PDF

Info

Publication number
CN105583321A
CN105583321A CN201510979749.XA CN201510979749A CN105583321A CN 105583321 A CN105583321 A CN 105583321A CN 201510979749 A CN201510979749 A CN 201510979749A CN 105583321 A CN105583321 A CN 105583321A
Authority
CN
China
Prior art keywords
end socket
closing
closing device
mold wheel
base plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510979749.XA
Other languages
Chinese (zh)
Inventor
卢定健
吕向阳
蒋琍松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHANGZHOU KUANGDA WEIDE MACHINERY Co Ltd
Original Assignee
CHANGZHOU KUANGDA WEIDE MACHINERY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHANGZHOU KUANGDA WEIDE MACHINERY Co Ltd filed Critical CHANGZHOU KUANGDA WEIDE MACHINERY Co Ltd
Priority to CN201510979749.XA priority Critical patent/CN105583321A/en
Publication of CN105583321A publication Critical patent/CN105583321A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00Making hollow objects
    • B21D51/16Making hollow objects characterised by the use of the objects
    • B21D51/38Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/44Making closures, e.g. caps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D19/00Flanging or other edge treatment, e.g. of tubes
    • B21D19/02Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

The invention discloses a closing device for a sealing head. The closing device is used for closing the sealing head and comprises a top plate, a bottom plate, an upper pressing mechanism, a lower pressing mechanism and a closing mechanism, wherein the top plate and the bottom plate are oppositely arranged, the upper pressing mechanism is arranged on the top plate, and the lower pressing mechanism and the closing mechanism are arranged on the bottom plate. By means of the closing device for the sealing head, compared with a traditional closing device, the sealing head is fixed to the position between the upper pressing mechanism and the lower pressing mechanism, so that the end, to be closed, of the sealing head is only subjected to extruding force of an outer die wheel, vertical supporting force is removed, and serious outward tilting of a closed part is avoided; and meanwhile the situation that the height of the closed part is inconsistent due to warp caused by insufficient rigidity of the sealing head is avoided, the closing precision is ensured, the closing quality is improved, and the scrap rate of products is decreased. The invention further provides a closing method adopting the closing device.

Description

A kind of closing device of end socket and closing method
Technical field
The present invention relates to the closing in process technology of end socket, especially a kind of closing device of end socket and closing method.
Background technology
End socket is petrochemical industry, atomic energy to indispensable vitals in all conglomerate pressure vessel and equipments of food pharmaceutical,As the end cap on pressure vessel, be a main pressure-containing member of pressure vessel, role is sealing, such as Low Temperature LiquidStainless steel end cap on oxygen liquid nitrogen container, has also all adopted this end socket. At present, mostly be utilization for the closing in conventional method of end socketClosing-up machine extruding bending, in the process of processing, the port of end socket is subject to the support force of the vertical direction of work top round roller, withTime be subject to the horizontal extruding force of external mold wheel, the position flare that causes closing up is serious, the position that makes to close up increases, in order to address this problem,Just in advance end socket size is done when end socket littlely making, added the closing in position increase causing man-hour, this side in order to offset to close upMethod is difficult to ensure the precision of closing in size, easily causes end socket to be scrapped; In addition, the sheet metal thickness at the closing in position of end socket is generally2mm~5mm, rigidity is inadequate, is easy to because the distortion of end socket port causes not at grade stepping up in end socket process, producesThe inconsistent situation of raw closing in position height, closing in quality is low.
Summary of the invention
Technical problem to be solved by this invention is: in order to overcome above-mentioned the deficiencies in the prior art, the invention provides onePlant closing device and the closing method of end socket.
The present invention solves the technical scheme that its technical problem will adopt: a kind of closing device of end socket, and for end socket is carried outClose up, comprise the top board and the base plate that are oppositely arranged, be located at upper hold-down mechanism on top board, be located at lower hold-down mechanism on base plate andClosing mechanism, described upper hold-down mechanism comprises the upper compressed oil cylinder that is installed on top board and is located at output upper of compressed oil cylinderCompressing member, on the output shaft that described lower hold-down mechanism comprises the first motor of being fixedly mounted on base plate, be located at the first motor underCompressed oil cylinder and be located at the lower compressing member of output of lower compressed oil cylinder, described closing mechanism comprises and rotates the internal mold of being located on base plateWheel construction and external mold wheel construction.
Further, the cylinder body end of described upper compressed oil cylinder is rotatably installed on top board, and described upper compressing member is fixed at pressureThe output of locking oil cylinder.
Further, the cylinder body end of described upper compressed oil cylinder is fixed on top board, and described upper compressing member is rotatably installed in pressureThe output of locking oil cylinder.
Further, described internal mold wheel construction comprises that one end is fixed at the fixed axis on base plate and rotates another that be located at fixed axisThe internal mold wheel of end.
Further, described external mold wheel construction comprises entering that the slide block, the output that are slidably connected on base plate be fixedly connected with slide blockGive oil cylinder, be fixed at the second motor on slide block and be located at the external mold wheel on the output shaft of the second motor.
Further, described base plate is provided with a guide rail, and described slide block is slidably connected on base plate by guide rail.
Further, described internal mold wheel and external mold wheel are located at respectively the both sides of due-in port part on end socket.
Further, the compressive plane profile of described upper compressing member adapts with the outline of end socket to be closed up, described lower compressing memberCompressive plane profile adapt with the interior profile of end socket to be closed up.
Adopt above-mentioned closing device to realize a closing method for end socket, comprise the following steps:
S10: end socket to be closed up is clamped between upper hold-down mechanism and lower hold-down mechanism, and the due-in mouth position of end socket is in interiorBetween mould wheel construction and external mold wheel construction;
S20: lower hold-down mechanism drives end socket to rotate;
S30: drive the motion of external mold wheel construction, make it, near internal mold wheel construction, by extruding, bending effect, to complete closing in.
Further, in described step S30, the control mode of feed cylinder is numerical control.
The invention has the beneficial effects as follows: the closing device of a kind of end socket provided by the invention, compared with traditional closing device, willEnd socket is fixed between hold-down mechanism and lower hold-down mechanism, makes the closing in end for the treatment of of end socket only be subject to the extruding force of external mold wheel, gets rid ofThe support force of vertical direction, avoided the serious flare in closing in position, meanwhile, also avoided causing not distortion because of end socket rigidityAnd produce closing in position height inconsistent situation, and ensure the precision closing up, improve the quality closing up, reduce productScrappage.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the structural representation of the closing device of a kind of end socket of the present invention;
Fig. 2 is the flow chart of the closing method of a kind of end socket of the present invention.
In figure: 10, top board, 20, base plate, 21, guide rail, 30, upper hold-down mechanism, 31, upper compressed oil cylinder, 32, onCompressing member, 40, lower hold-down mechanism, 41, the first motor, 42, lower compressed oil cylinder, 43, lower compressing member, 50, closing mechanism,51, internal mold wheel construction, 511, fixed axis, 512, internal mold wheel, 52, external mold wheel construction, 521, slide block, 522, feeding oilCylinder, 523, the second motor, 524, external mold wheel, 60, end socket.
Detailed description of the invention
The present invention is described in detail by reference to the accompanying drawings now. This figure is the schematic diagram of simplifying, and this is only described in a schematic wayBright basic structure, therefore it only shows the formation relevant with the present invention.
Embodiment mono-
Shown in Fig. 1, the invention provides a kind of closing device of end socket, for end socket 60 is closed up, this closing in dressPut comprise the top board 10 and the base plate 20 that are oppositely arranged, be located at upper hold-down mechanism 30 on top board 10, be located on base plate 20 underHold-down mechanism 40 and closing mechanism 50.
Described upper hold-down mechanism 30 comprises the upper compressed oil cylinder 31 being installed on top board 10 and the output of being located at compressed oil cylinder 31The upper compressing member 32 of end, the cylinder body end of described upper compressed oil cylinder 31 is rotatably installed on top board 10, described upper compressing member 32Be fixed at the output of compressed oil cylinder 31, drive upper compressing member 32 to rotate by the rotation of upper compressed oil cylinder 31.
Described lower hold-down mechanism 40 comprises the first motor 41 being fixedly mounted on base plate 20, the output of being located at the first motor 41Lower compressed oil cylinder on axle 42 and be located at the lower compressing member 43 of the output of lower compressed oil cylinder 42. Described closing mechanism 50 comprisesInternal mold wheel construction 51 and the external mold wheel construction 52 on base plate is located in rotation.
Described internal mold wheel construction 51 comprises that one end is fixed at fixed axis on base plate 20 511 and rotates and be located at fixed axis 511The internal mold wheel 512 of the other end.
Described external mold wheel construction 52 comprises that the slide block 521, the output that are slidably connected on base plate 20 are fixedly connected with slide block 521Feed cylinder 522, be fixed at the second motor 523 on slide block 521 and be located on the output shaft of the second motor 523 outsideMould wheel 524.
On above-mentioned internal mold wheel 512 and external mold wheel 524, have the outline being fitted to each other, the shape of outline determines closing in shape.
Described base plate 20 is provided with a guide rail 21, and described slide block 521 is slidably connected on base plate 20 by guide rail 21.
Described internal mold wheel 512 and external mold wheel 524 are located at respectively the both sides of due-in port part on end socket 60.
The output shaft of described upper compressed oil cylinder 31 is coaxial with the output shaft of lower compressed oil cylinder 42.
The compressive plane profile of described upper compressing member 32 adapts with the outline of end socket 60 to be closed up, described lower compressing member 43Compressive plane profile adapt with the interior profile of end socket 60 to be closed up.
Shown in Fig. 2, the present invention also provides a kind of closing method of the closing device that adopts above-mentioned end socket, comprises following stepRapid:
S10: end socket to be closed up 60 is placed between upper compressing member 32 and lower compressing member 43, in startup compressed oil cylinder 31 withLower compressed oil cylinder 42, regulates end socket 60 height, makes the due-in mouth position of end socket 60 in internal mold wheel 512 and external mold wheel 524Between;
S20: start the first motor 41, end socket 60 rotates in the lump under the clamping action of upper compressing member 32 and lower compressing member 43.Upper compressing member 32 is consistent with the appearance profile of lower compressing member 43 and the appearance profile of end socket, thereby can clamp better end socket 60。
S30: start the second motor 523, external mold wheel 524 is rotated, startup feed cylinder 522 promotes slide block 521 and moves, withTime to drive external mold wheel 524 to take turns 512 directions to internal mold close, take turns by internal mold 512 push with external mold wheel 524, bending effect,Complete closing in.
In described step S30, the control mode of feed cylinder 522 is numerical control.
Embodiment bis-
The present embodiment be compared to embodiment once difference be: the cylinder body end of described upper compressed oil cylinder 31 is fixed at topOn plate 10, described upper compressing member 32 is rotatably installed in the output of compressed oil cylinder 31. Under the driving of lower hold-down mechanism 40,In drive, the upper compressing member 32 of the output of compression cylinder 31 rotates.
The closing device of a kind of end socket of the present invention, compared with traditional closing device, is fixed on upper hold-down mechanism by end socket 6030 and lower hold-down mechanism 40 between, make the end that closes up waited of end socket 60 only be subject to the extruding force of external mold wheel 524, got rid of vertical sideTo support force, avoided the serious flare in closing in position, meanwhile, also avoided producing because end socket 60 rigidity cause distortion notThe inconsistent situation of raw closing in position height, has ensured the precision closing up, and has improved the quality closing up, and has reduced scrapping of productRate.
Taking above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, relevant staff is completeCan, not departing from scope of the present invention, carry out various change and amendment. The technical scope of this invention is not limited toContent on description, must determine its technical scope according to claim scope.

Claims (10)

1. a closing device for end socket, for end socket (60) is closed up, is characterized in that: comprise being oppositely arrangedTop board (10) and base plate (20), be located at upper hold-down mechanism (30) on top board (10), be located at pressing down on base plate (20)Tight mechanism (40) and closing mechanism (50), described upper hold-down mechanism (30) comprises the upper compression being installed on top board (10)Oil cylinder (31) and be located at the upper compressing member (32) of the output of compressed oil cylinder (31), described lower hold-down mechanism (40) bagLower compression oil on the output shaft of draw together the first motor (41) of being fixedly mounted on base plate (20), being located at the first motor (41)Cylinder (42) and be located at the lower compressing member (43) of the output of lower compressed oil cylinder (42), described closing mechanism (50) comprises and turningMoving internal mold wheel construction (51) and the external mold wheel construction (52) of being located on base plate.
2. the closing device of a kind of end socket as claimed in claim 1, is characterized in that: described upper compressed oil cylinder (31)It is upper that cylinder body end is rotatably installed in top board (10), and described upper compressing member (32) is fixed at the output of compressed oil cylinder (31)End, drives upper compressing member (32) to rotate by the rotation of upper compressed oil cylinder (31).
3. the closing device of a kind of end socket as claimed in claim 1, is characterized in that: described upper compressed oil cylinder (31)It is upper that cylinder body end is fixed at top board (10), and described upper compressing member (32) is rotatably installed in the output of compressed oil cylinder (31)End.
4. the closing device of a kind of end socket as claimed in claim 1, its feature is lain in: described internal mold wheel construction (51) bagDraw together the internal mold wheel that one end is fixed at fixed axis (511) on base plate (20) and rotation and is located at the other end of fixed axis (511)(512)。
5. the closing device of a kind of end socket as claimed in claim 4, is characterized in that: described external mold wheel construction (52) bagDraw together the slide block (521) that is slidably connected on base plate (20), feed cylinder (522) that output is fixedly connected with slide block (521),Be fixed at the second motor (523) on slide block (521) and be located at the external mold wheel (524) on the output shaft of the second motor (523).
6. the closing device of a kind of end socket as claimed in claim 5, is characterized in that: described base plate (20) is provided with oneGuide rail (21), described slide block (521) is slidably connected on base plate (20) by guide rail (21).
7. the closing device of a kind of end socket as claimed in claim 6, is characterized in that: described internal mold wheel (512) and external moldWheel (524) is located at respectively the both sides of the upper due-in port part of end socket (60).
8. the closing device of a kind of end socket as claimed in claim 1, is characterized in that: described upper compressing member (32) squeezePressure surface profile adapts with the outline of end socket (60) to be closed up, the compressive plane profile of described lower compressing member (43) and due-inThe interior profile of the end socket (60) of mouth adapts.
9. a closing method that adopts the closing device of end socket as claimed in claim 1, comprises the following steps,
S10: end socket to be closed up (60) is clamped between upper hold-down mechanism (30) and lower hold-down mechanism (40) to end socket(60) due-in mouth position is between internal mold wheel construction (51) and external mold wheel construction (52);
S20: lower hold-down mechanism (40) drives end socket (60) to rotate;
S30: drive external mold wheel construction (52) motion, make it near internal mold wheel construction (51), by extruding, bending effect,Complete closing in.
10. the closing method of a kind of end socket as claimed in claim 9, is characterized in that: feeding oil in described step S30The control mode of cylinder is numerical control.
CN201510979749.XA 2015-12-23 2015-12-23 Closing device for sealing head and closing method Pending CN105583321A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510979749.XA CN105583321A (en) 2015-12-23 2015-12-23 Closing device for sealing head and closing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510979749.XA CN105583321A (en) 2015-12-23 2015-12-23 Closing device for sealing head and closing method

Publications (1)

Publication Number Publication Date
CN105583321A true CN105583321A (en) 2016-05-18

Family

ID=55923435

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510979749.XA Pending CN105583321A (en) 2015-12-23 2015-12-23 Closing device for sealing head and closing method

Country Status (1)

Country Link
CN (1) CN105583321A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106975710A (en) * 2016-11-08 2017-07-25 广东探金电子科技有限公司 A kind of tank cap automatic folding machine bed
CN108421926A (en) * 2018-02-11 2018-08-21 武汉世纪宏设备制造有限责任公司 Railway freight-car stores up air reservoir seal head positioning limit roll forming integration tooling
CN109692920A (en) * 2017-10-24 2019-04-30 芜湖美的厨卫电器制造有限公司 The manufacturing method and rolling device of metal cylinder
CN111014489A (en) * 2019-12-31 2020-04-17 河南神州精工制造股份有限公司 High-forming-precision end socket flanging positioning tool and positioning method using same

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2187988Y (en) * 1991-11-23 1995-01-25 泰县第三机械厂 LG steel cylinder cap bore reducing machine
DE202004002115U1 (en) * 2003-05-27 2004-05-06 Feldbinder & Beckmann Fahrzeugbau Gmbh & Co Kg Device for producing a molded part, and molded part, in particular a container base
CN101439466A (en) * 2007-11-20 2009-05-27 姜堰市华联机电制造厂 Combined finishing machine for container end socket
CN201565508U (en) * 2009-11-23 2010-09-01 万红杰 Air blaster seal head necking machine
CN102259142A (en) * 2010-05-26 2011-11-30 陈万忠 Method and equipment for producing large-scale and ultra-thick end socket
CN202621671U (en) * 2012-05-09 2012-12-26 安徽心连心重型封头有限公司 Crimping machine accessory device
CN203209511U (en) * 2012-12-31 2013-09-25 常州旷达威德机械有限公司 Hot flow forming machine
CN103846364A (en) * 2012-11-30 2014-06-11 宜兴北海封头有限公司 Special necking-in machine for small-caliber end socket
CN204148331U (en) * 2014-10-17 2015-02-11 宜兴市联丰化工机械有限公司 A kind of ultrahigh pressure large-scale sealing head spinning machine
CN204308089U (en) * 2014-11-21 2015-05-06 力达(江西)机电有限公司 A kind of end socket automatic necking machines
CN104826960A (en) * 2015-05-13 2015-08-12 濮阳市鸿宇压力容器有限公司 Necking machine for seal head
CN205253963U (en) * 2015-12-23 2016-05-25 常州旷达威德机械有限公司 Close device of head

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2187988Y (en) * 1991-11-23 1995-01-25 泰县第三机械厂 LG steel cylinder cap bore reducing machine
DE202004002115U1 (en) * 2003-05-27 2004-05-06 Feldbinder & Beckmann Fahrzeugbau Gmbh & Co Kg Device for producing a molded part, and molded part, in particular a container base
CN101439466A (en) * 2007-11-20 2009-05-27 姜堰市华联机电制造厂 Combined finishing machine for container end socket
CN201565508U (en) * 2009-11-23 2010-09-01 万红杰 Air blaster seal head necking machine
CN102259142A (en) * 2010-05-26 2011-11-30 陈万忠 Method and equipment for producing large-scale and ultra-thick end socket
CN202621671U (en) * 2012-05-09 2012-12-26 安徽心连心重型封头有限公司 Crimping machine accessory device
CN103846364A (en) * 2012-11-30 2014-06-11 宜兴北海封头有限公司 Special necking-in machine for small-caliber end socket
CN203209511U (en) * 2012-12-31 2013-09-25 常州旷达威德机械有限公司 Hot flow forming machine
CN204148331U (en) * 2014-10-17 2015-02-11 宜兴市联丰化工机械有限公司 A kind of ultrahigh pressure large-scale sealing head spinning machine
CN204308089U (en) * 2014-11-21 2015-05-06 力达(江西)机电有限公司 A kind of end socket automatic necking machines
CN104826960A (en) * 2015-05-13 2015-08-12 濮阳市鸿宇压力容器有限公司 Necking machine for seal head
CN205253963U (en) * 2015-12-23 2016-05-25 常州旷达威德机械有限公司 Close device of head

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106975710A (en) * 2016-11-08 2017-07-25 广东探金电子科技有限公司 A kind of tank cap automatic folding machine bed
CN109692920A (en) * 2017-10-24 2019-04-30 芜湖美的厨卫电器制造有限公司 The manufacturing method and rolling device of metal cylinder
CN108421926A (en) * 2018-02-11 2018-08-21 武汉世纪宏设备制造有限责任公司 Railway freight-car stores up air reservoir seal head positioning limit roll forming integration tooling
CN108421926B (en) * 2018-02-11 2019-07-16 武汉世纪宏设备制造有限责任公司 Railway freight-car stores up air reservoir seal head positioning limit roll forming integration tooling
CN111014489A (en) * 2019-12-31 2020-04-17 河南神州精工制造股份有限公司 High-forming-precision end socket flanging positioning tool and positioning method using same

Similar Documents

Publication Publication Date Title
CN105583321A (en) Closing device for sealing head and closing method
CN208825323U (en) The convertible stamping die of bimodulus seat
CN202573048U (en) Multi-head pressing-sheet type full-automatic high-efficiency rotary preforming press
CN201012375Y (en) Eyelet punching flanging composite mold
CN103191945A (en) Method and device for high-pressure hydraulic flange plasticity forming
CN205253963U (en) Close device of head
CN108127052A (en) High-yield double-action compound die cup punching machine and cup punching process thereof
CN208840266U (en) A kind of plate stamping machine
CN203649209U (en) Horizontal full-automatic lock clamp pressing machine
CN204276600U (en) The flattening mechanism of stainless steel marine propeller roll unit
CN203209511U (en) Hot flow forming machine
CN106862911A (en) A kind of adjustable workpiece assembling seat of screw locking machine
CN103521585B (en) A kind of titanium alloy fusiform component Hot drawing method and device thereof
CN104209412A (en) Trial-manufacturing side reshaping die of vehicle body metal plate
CN204687395U (en) A kind of rotary tabletting press
CN105234241B (en) Silver-colored kettle pot lid one-shot forming turgor pressure mould
CN204365828U (en) The diel of passenger car silencer tube body flange
CN209318582U (en) A kind of housing upper cover backplate production mould
CN211071421U (en) Stainless steel product compression molding equipment
CN203864086U (en) Fiber drum opening rolling machine
CN207839899U (en) High-yield double-action compound die cup punching machine
CN208004570U (en) Special-shaped product flange molding machine
CN206388656U (en) The outer cap serging device of fuse
CN220161301U (en) Powder metallurgy forging processing table
CN207343743U (en) Full-automatic die casting depiler ultrasound feeding-distribution device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20160518