CN202186053U - Clamping apparatus for welding PTFE board - Google Patents

Clamping apparatus for welding PTFE board Download PDF

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Publication number
CN202186053U
CN202186053U CN201120250256XU CN201120250256U CN202186053U CN 202186053 U CN202186053 U CN 202186053U CN 201120250256X U CN201120250256X U CN 201120250256XU CN 201120250256 U CN201120250256 U CN 201120250256U CN 202186053 U CN202186053 U CN 202186053U
Authority
CN
China
Prior art keywords
ptfe
plate
ptfe plate
welding
panel assembly
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.)
Expired - Lifetime
Application number
CN201120250256XU
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Chinese (zh)
Inventor
杨文光
张荫谷
陈朝曦
孙克原
陈佩民
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.)
Nanjing Kent composites Limited by Share Ltd
Original Assignee
NANJING KENTE COMPOSITE MATERIAL 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
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Priority to CN201120250256XU priority Critical patent/CN202186053U/en
Application granted granted Critical
Publication of CN202186053U publication Critical patent/CN202186053U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a clamping apparatus capable of reliably clamping a PTFE board when the PTFE board is welded, comprising two pressure plates which can oppositely move, wherein a pressure spring is arranged on the opposite surface of one pressure plate opposite to the other pressure plate.

Description

Clamping device during the welding of PTFE plate
Technical field
Clamping device when the utility model relates to the welding of PTFE plate.
Background technology
The docking area of two blocks of PTFE plates adopted be heated to uniform temperature and make it fusion, then melt be pressurized to certain pressure and heat-insulation pressure keeping a period of time makes two docking area merge, cooling can be accomplished welding (bonding) process of two blocks of PTFE plates butt welding again.When welding generally speaking, a PTFE plate is fixed, and the clamped device of another piece PTFE plate clamps.Through being exerted pressure, clamping device make clamped PTFE plate that fixing PTFE plate is produced certain pressure.In addition, generally also need a clamping device that fixing PTFE plate holder is fastened.
We know that the PTFE plate has excellent lubricating property, also are difficult problems so how clamping device clamps the PTFE plate.Common clamping device clamps the PTFE plate by two block pressur plates.Pressing plate and greasy property are slided between the PTFE plate preferably easily relatively; Add that pinch zones that clamping device clamps the PTFE plate is generally near the docking area (thermal treatment zone) of PTFE plate; Because the conduction of heat, the heat of the thermal treatment zone also can conduct to pinch zones, causes the PTFE plate deliquescing of pinch zones; Clamped PTFE plate can attenuation under the effect of the initial clamping force of two block pressur plates; So the clamped PTFE plate of original state can occur, along with the heating of the thermal treatment zone, because deliquescing attenuation and pressing plate can not continue to have clamped the PTFE plate gradually.
The utility model content
The utility model provides a kind of clamping device that can when welding PTFE plate, clamp the PTFE plate reliably.
Clamping device when the PTFE plate of the utility model welds comprises relatively-movable two block pressur plates, on the opposite face of a block pressur plate with respect to another pressing plate, stage clip is set.
Above-mentioned clamping device, stage clip are more than two.
The beneficial effect of the utility model:,, and it is compensated owing to stage clip can extend automatically because of a variety of causes causes when the distance between two block pressur plates has less variation; Make that clamped PTFE plate can be not released.Especially in when welding, because the pinch zones that clamping device clamps the PTFE plate is generally near the docking area (thermal treatment zone) of PTFE plate, because the conduction of heat; The heat of the thermal treatment zone also can conduct to pinch zones; Cause the PTFE plate deliquescing of pinch zones, PTFE plate meeting attenuation under the compressing of stage clip like this, but compressed spring can extend automatically; Thereby the varied in thickness to the PTFE plate compensates, and makes that the PTFE plate basically still can be by spring compression.Preferably, stage clip is more than two.
Description of drawings
Fig. 1 is the sketch map of this welder.
Fig. 2 is the schematic top plan view of deciding panel assembly, moving panel assembly, guider, pressue device etc.
Fig. 3 is the schematic side view of panel assembly.
Fig. 4 is the tensile bars sketch map of the good product of welding.
Fig. 5 is the tensile bars sketch map of former PTFE plate.
The specific embodiment
1, choices of raw materials
Selecting material for use is the PTFE plate of PTFE M-111, PTFE TFM1700, PTFE TFM1705, PTFE TFM1600, respectively the PTFE plate with a kind of material is made soldering test.
2, welder.
Referring to Fig. 1, the PTFE plate welder shown in 2, comprise frame (100), decide panel assembly (fixture) 1, moving panel assembly (clamping device) 2, heater 3, guider 4, pressue device 5, cooling device 6, oil cylinder (mobile device) 7 etc.
It is identical with moving panel assembly (clamping device) 2 structures to decide panel assembly 1, includes top board 11, lower platen 12, a plurality of stage clip 13, bolt 14, with bolt 14 nut engaged 15 etc.Stage clip 13 is arranged on the lower surface of the top board 11 relative with lower platen 12.The both sides of top board 11, lower platen 12 respectively have bolt hole, and bolt 14 passes the bolt hole hole and links to each other top board with lower platen.A PTFE plate 99 on the left side is placed on the lower platen 12 of deciding panel assembly 1, and a PTFE plate 98 on the right is placed on the lower platen 12 of moving panel assembly 2.Through tighting a bolt 14, stage clip 13 is compressed, and the PTFE plate is pressed between stage clip 13 and the lower platen 12 by stage clip.Certainly, unclamp bolt 14, can take off top board (and stage clip).
The lower platen 12 of deciding panel assembly 1 is fixed on the frame, and moving panel assembly 2 is slidingly arranged on the frame through guider 4.Guider 4 comprises roller 41, turning rolls 42, is fixed on the guide rail 43 on the frame.Roller 41 is connected the both sides of the last lower platen of moving panel assembly 2 through turning rolls 42, and roller 41 cooperates with guide rail 43, plays guide effect with the rolling of pair roller.Under the guiding of guider 4, clamping device 2 can drive clamped PTFE plate 98 and on perpendicular to abutment joint and the direction parallel with the PTFE plate, slide.
Pressue device 5 comprises two counterweights 51 and two ropes 52 and is arranged on two fixed pulleys 53 on the frame.One end of rope 52 links to each other with counterweight 51, and other end pile warp fixed pulley 53 backs link to each other with the top board 11 of moving panel assembly 2.Rope between the top board 11 of fixed pulley 53 and moving panel assembly 2 is perpendicular to abutment joint and parallel with the PTFE plate.Under the drive of counterweight, moving panel assembly and PTFE plate 98 have the trend that moves towards PTFE plate 99, thereby make PTFE plate 98 along perpendicular to compressing PTFE plate 99 on abutment joint and the direction parallel with the PTFE plate.
Heater 3 comprises in 31,32, two heating plates of two relative up and down heating plates all has the resistance wire chamber 34 that is parallel to abutment joint, is provided with resistance wire 33 in the resistance wire chamber 34.Following heating plate 32 is fixed on the frame, last heating plate 31 with can drive it and link to each other with respect to the oil cylinder 7 that following heating plate moves up and down.The cylinder body of oil cylinder 7 is fixed on the frame.
The both sides in the resistance wire chamber 34 on every heating plate have cooling duct 61.The cooling water of circulation feeds cooling duct 61.Cooling duct 61, cooling water etc. have constituted cooling device 6.
When using this welder that the PTFE plate is welded, be placed on clamping in the floor apparatus 1 to a PTFE plate 99, be placed on clamping in the moving panel assembly 2 to a PTFE plate 98.Counterweight is installed, and the weight of counterweight is so that the pressure of docking area is 20-50MPa be advisable (the concrete pressure of each embodiment is referring to table 1).Moving panel assembly moves, and makes PTFE plate 98 dock with PTFE plate 99, and the docking area 97 of two blocks of PTFE plates is all on following heating plate 32.Go up heating plate 31 through oil cylinder 7 drives and move down, be clamped in the docking area 97 of two blocks of PTFE plates up and down between the heating plate.The outside of the docking area 97 of PTFE plate is cooling zone 96, is up and down that relative up and down cooling duct 61 is positioned at 96 places, cooling zone in the heating plate.The pinch zones 95 that stage clip clamps the PTFE plate is 96 the outside in the cooling zone.
Cooling device starts, and cooling water feeds the cooling duct.To the resistance wire energising, the docking area is heated on the fusing point of PTFE then, makes PTFE plate docking area become the gluey state of fusion, temperature is generally 350 ℃-390 ℃ (actual temp of each embodiment is referring to tables 1), is incubated to be 3-5 minute.The melt of the thermal treatment zone merges under this temperature and pressure, forms weld seam 94.Outage then stops heating.After the band thermal treatment zone cooling, unload counterweight, oil cylinder 7 rollbacks unclamp and decide panel assembly and moving panel assembly, take off to have welded product and get final product.
3, test:
The quality quality of PTFE weld generally depends on its bonding strength.A method that detects bonding strength is exactly on the good product of welding, to cut tensile bars 8, and referring to Fig. 4, sealing wire (weld seam) 94 is in the center of tensile bars.On the product that makes under the different welding pressures 20,30,40 of the thermal treatment zone, the 50MPa, produce tensile bars 8 respectively.Equally, on former PTFE plate, produce the identical tensile bars of specification 9, referring to Fig. 5.With reference to ASTM D-638 sheet material tensile bars 8,9 is judged hot strength and percentage elongation do tension test, the result sees table 1.
Select other different PTFE materials for use, according to above-mentioned method welding and test, the result sees table 1.It is thus clear that the hot strength and the disconnected rate percentage elongation of welding back product have all reached raw-material more than 80%.And, welding back flat appearance.
Certainly, in the utility model, PTFE plate 99 and PTFE plate 98 also can be the dual-sides that the needs of a PTFE plate dock.
Table 1

Claims (2)

1.PTFE the clamping device during the plate welding is characterized in that: comprise relatively-movable two block pressur plates, on the opposite face of a block pressur plate with respect to another pressing plate, stage clip is set.
2. clamping device as claimed in claim 1 is characterized in that: stage clip is more than two.
CN201120250256XU 2011-07-15 2011-07-15 Clamping apparatus for welding PTFE board Expired - Lifetime CN202186053U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120250256XU CN202186053U (en) 2011-07-15 2011-07-15 Clamping apparatus for welding PTFE board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120250256XU CN202186053U (en) 2011-07-15 2011-07-15 Clamping apparatus for welding PTFE board

Publications (1)

Publication Number Publication Date
CN202186053U true CN202186053U (en) 2012-04-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201120250256XU Expired - Lifetime CN202186053U (en) 2011-07-15 2011-07-15 Clamping apparatus for welding PTFE board

Country Status (1)

Country Link
CN (1) CN202186053U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104139522A (en) * 2014-07-11 2014-11-12 江苏远翔物联科技有限公司 Passive anti-deflashing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104139522A (en) * 2014-07-11 2014-11-12 江苏远翔物联科技有限公司 Passive anti-deflashing device
CN104139522B (en) * 2014-07-11 2017-05-17 江苏远翔物联科技有限公司 Passive anti-deflashing device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Nanjing CompTECH New Material Co., Ltd.

Assignor: Nanjing Kente Composite Material Co., Ltd.

Contract record no.: 2012320000489

Denomination of utility model: Clamping apparatus for welding PTFE board

Granted publication date: 20120411

License type: Exclusive License

Record date: 20120419

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
CP03 Change of name, title or address

Address after: 211162 Jiangsu, Jiangning District, Binjiang Development Zone, No., Copper Road, No. 18

Patentee after: Nanjing Kent composites Limited by Share Ltd

Address before: 211162 Nanjing City, Jiangning Province town, the town of copper, Copper Road, No. 18

Patentee before: Nanjing Kente Composite Material Co., Ltd.

CP03 Change of name, title or address
CX01 Expiry of patent term

Granted publication date: 20120411

CX01 Expiry of patent term