CN102628514A - Manufacture method of sealing gasket - Google Patents
Manufacture method of sealing gasket Download PDFInfo
- Publication number
- CN102628514A CN102628514A CN201210121085XA CN201210121085A CN102628514A CN 102628514 A CN102628514 A CN 102628514A CN 201210121085X A CN201210121085X A CN 201210121085XA CN 201210121085 A CN201210121085 A CN 201210121085A CN 102628514 A CN102628514 A CN 102628514A
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- gasket seal
- blank plate
- production method
- rotary
- tooth
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Abstract
The invention discloses a manufacture method of a sealing gasket. A disc-shaped blank plate is subjected to rotary cutting in the circumferential direction to obtain a circular arc-shaped continuous strip material, then, the strip material is shaped according to sealing gasket specifications, and strip material welding parts are subjected to hot melt welding to obtain finished products. The manufacture method has the advantages that the manufacture method is applicable to the manufacture of sealing gaskets in any specifications and is particularly suitable for the manufacture of sealing gaskets in large specifications, the problem of leakage point increase caused by a plurality of welding points during the subsection manufacture connection is avoided, only one welding point exists, and the sealing performance and the reliability of the sealing gaskets are improved; and the blank plate is prepared according to the sealing gasket specifications, the material loss is reduced, and the cost is saved.
Description
Technical field
The present invention relates to a kind of production method of gasket seal.
Background technique
The PTFE gasket seal that chemical mechanical equipment uses all adopts PTFE powder molding sintering or adopts the whole system of drawing of PTFE sheet material to form.But the maximum breadth of PTFE sheet material is limited by its processing conditions; Thereby can only wholely draw the gasket seal of system diameter 2700 millimeters following specifications; And surpass 2700 millimeters gasket seal for diameter, and adopt earlier sheet material to be divided into the segmentation circular arc, again the segmentation circular arc is welded into solid shim.The gasket seal that this method is made because welded joint is many, therefore causes the seal leakage point to increase, and influence seals using effect, is easy to generate the problem of evaporating, emitting, dripping or leaking of liquid or gas.
Summary of the invention
Goal of the invention: to the problems referred to above, the purpose of this invention is to provide a kind of production method of gasket seal, be applicable to the manufacturing of any specification gasket seal.
Technological scheme: a kind of production method of gasket seal, along circumferentially obtaining circular-arc continuous belts material, will be with material to press the typing of gasket seal specification more discoid blank plate through rotary-cut, the joint sweat soldering gets product to the band material.
Cutting edge and blank plate central shaft form the rotary-cut angle, and blank plate rotates around central shaft, the working angles automatic feed, and the band material thickness that cutting is obtained is gasket seal thickness; Blank plate thickness is (φ
1-φ
2)/2, rotary-cut angle are arcSin (D/ φ
1), φ wherein
1Be gasket seal external diameter, φ
2For gasket seal internal diameter, D are the blank plate external diameter.Blank plate thickness is the gasket seal width, and the rotary-cut angle has guaranteed that its inner ring arc diameter of circular-arc continuous belts material that rotary-cut obtains is gasket seal internal diameter φ
2, the outer ring arc diameter is gasket seal external diameter φ
1, the amount of feed of working angles has guaranteed gasket seal thickness.
Said blank plate is through the rotation of profile of tooth hedysarum scoparium fixed center axis, and the tooth external profile diameter of said profile of tooth hedysarum scoparium is greater than said blank plate internal diameter.The blank plate that fixedly guaranteed of profile of tooth hedysarum scoparium rotates around central shaft, combines closely fixation again with the blank plate inwall simultaneously.
Band is anticipated type and is accurately finalized the design according to the specification of gasket seal.Because the rotary-cut angle has guaranteed that the Internal and external cycle arc diameter of band material is approaching or consistent with the interior external diameter of gasket seal during cutting; And the rotary-cut back segment along with working angles more near the profile of tooth hedysarum scoparium; The band material radian that rotary-cut goes out is similar to straight line; Therefore need finalize the design to the band material that rotary-cut obtains, the specification according to gasket seal during typing accurately finalizes gasket shape, and intercepting is removed band material head and the tail and got final product.
The net weight of said blank plate is bigger by about 20% than gasket seal net weight.The weight of blank plate because the initial disconnected and section that ends of rotary-cut is lossy, so the net weight of blank plate is greater than the gasket seal net weight, has certain well-to-do amount with assurance according to the making of gasket seal weight, but can not be too many, in order to avoid waste.
Beneficial effect: compared with prior art; Advantage of the present invention is the manufacturing that is applicable to any specification gasket seal; Particularly be applicable to the manufacturing of big specification gasket seal; Avoid the segmentation manufacturing to connect the leakage point that has a plurality of soldering points and cause and increased, had only a soldering point to exist, improved the sealing and the reliability of gasket seal; Prepare blank plate according to the gasket seal specification, reduce spillage of material, practice thrift cost.
Description of drawings
Fig. 1 is a rotary-cut starting point view of the present invention;
Fig. 2 is a rotary-cut process status schematic representation of the present invention.(arrow is depicted as the sense of rotation of blank plate, the moving direction of cutting tool among Fig. 1, Fig. 2).
Embodiment
Below in conjunction with accompanying drawing and specific embodiment; Further illustrate the present invention; Should understand these embodiments only be used to the present invention is described and be not used in the restriction scope of the present invention; After having read the present invention, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
Like accompanying drawing 1, shown in 2, a kind of production method of gasket seal, this method may further comprise the steps:
(1) according to the specification φ that treats the gasket sheet
1* φ
2* δ (φ
1Be gasket seal external diameter, φ
2For gasket seal external diameter, δ are gasket seal thickness) the PTFE powder is molded into discoid blank plate 1, the blank plate specification is D * d * L (D is that blank plate external diameter, d are that blank plate internal diameter, L are blank plate thickness), makes L=(φ
1-φ
2Therefore)/2, the net weight ratio of blank plate treat that gasket sheet net weight is big by about 20%, guarantee the size of L, can adjust the size of confirming D and d, and the size of d is definite with the tooth external profile diameter cooperation of the profile of tooth hedysarum scoparium of following fixedly blank plate.
(2) blank plate 1 that fixedly is pressed into profile of tooth hedysarum scoparium 2 guarantees the central shaft of profile of tooth hedysarum scoparium and the spigot shaft coaxle of blank plate, and the end with the profile of tooth hedysarum scoparium is fixed to machine chuck 3 enterprising line position adjustment then, guarantees that blank plate can be around its central shaft rotation.Profile of tooth hedysarum scoparium 2 is cylinders that rule is provided with the projection dentation on the excircle; The tooth external profile diameter of profile of tooth hedysarum scoparium is greater than the blank plate internal diameter; Combine when guaranteeing fixedly blank plate tight, fixed, thereby the band material size that cuts out during the assurance rotary-cut and the validity of gasket seal specification.
(3) advance cutting tool 4 to blank plate 1 outer radius, make cutting edge and blank plate central shaft form rotary-cut angle α, α=arcSin (D/ φ
1), the amount of feed of cutting tool is set, the band material thickness that cutting is obtained is gasket seal thickness.Start lathe, the adjustment rotating speed, blank plate rotates around central shaft under the drive of machine chuck, and the cutting tool automatic feed is circumferentially carried out rotary-cut to blank plate, obtains circular-arc continuous belts material 5.
(4) cutting finishes, and will be with the material head and the tail to cut unsettled part and remove, and will be with material to be shaped into closed ring according to the size of gasket seal then, and the joint sweat soldering obtains finished product.Because the rotary-cut angle has guaranteed that the Internal and external cycle arc diameter of band material is approaching or consistent with the interior external diameter of gasket seal during cutting; And the rotary-cut back segment along with working angles more near the profile of tooth hedysarum scoparium; The band material radian that rotary-cut goes out is similar to straight line; Therefore need finalize the design to the band material that rotary-cut obtains, accurately finalize gasket shape according to the specification of gasket seal.
Claims (5)
1. the production method of a gasket seal is characterized in that: along circumferentially obtaining circular-arc continuous belts material through rotary-cut, will be with material to press the typing of gasket seal specification more discoid blank plate, band is expected that the joint sweat soldering gets product.
2. the production method of a kind of gasket seal according to claim 1 is characterized in that: cutting edge and blank plate central shaft form the rotary-cut angle, and blank plate rotates around central shaft, the working angles automatic feed, and the band material thickness that cutting is obtained is gasket seal thickness; Blank plate thickness is (φ
1-φ
2)/2, rotary-cut angle are arcSin (D/ φ
1), φ wherein
1Be gasket seal external diameter, φ
2For gasket seal internal diameter, D are the blank plate external diameter.
3. the production method of a kind of gasket seal according to claim 1 is characterized in that: said blank plate is through the rotation of profile of tooth hedysarum scoparium fixed center axis, and the tooth external profile diameter of said profile of tooth hedysarum scoparium is greater than said blank plate internal diameter.
4. the production method of a kind of gasket seal according to claim 1 is characterized in that: band is anticipated type and is accurately finalized the design according to the specification of gasket seal.
5. the production method of a kind of gasket seal according to claim 1, it is characterized in that: the net weight of said blank plate is bigger by about 20% than gasket seal net weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210121085XA CN102628514A (en) | 2012-04-24 | 2012-04-24 | Manufacture method of sealing gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210121085XA CN102628514A (en) | 2012-04-24 | 2012-04-24 | Manufacture method of sealing gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102628514A true CN102628514A (en) | 2012-08-08 |
Family
ID=46586839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210121085XA Pending CN102628514A (en) | 2012-04-24 | 2012-04-24 | Manufacture method of sealing gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102628514A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4781048A (en) * | 1985-05-10 | 1988-11-01 | Flexitallic Limited | Method of forming spirally wound gaskets |
| CN1052278A (en) * | 1990-11-24 | 1991-06-19 | 达县橡胶制品厂 | Working method for rubber round washer and device thereof |
| SU1699729A1 (en) * | 1989-05-10 | 1991-12-23 | Самарское Производственное Объединение "Завод Им.Масленникова" | Method and apparatus for making circular gaskets |
| CN2096637U (en) * | 1991-07-06 | 1992-02-19 | 江西省黎川县膨胀石墨密封件厂 | Sealed round for beam-pumping unit |
| CN2175674Y (en) * | 1993-12-13 | 1994-08-31 | 海林林业局夹皮沟经营林场 | Car loaded small sheet cutter |
-
2012
- 2012-04-24 CN CN201210121085XA patent/CN102628514A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4781048A (en) * | 1985-05-10 | 1988-11-01 | Flexitallic Limited | Method of forming spirally wound gaskets |
| SU1699729A1 (en) * | 1989-05-10 | 1991-12-23 | Самарское Производственное Объединение "Завод Им.Масленникова" | Method and apparatus for making circular gaskets |
| CN1052278A (en) * | 1990-11-24 | 1991-06-19 | 达县橡胶制品厂 | Working method for rubber round washer and device thereof |
| CN2096637U (en) * | 1991-07-06 | 1992-02-19 | 江西省黎川县膨胀石墨密封件厂 | Sealed round for beam-pumping unit |
| CN2175674Y (en) * | 1993-12-13 | 1994-08-31 | 海林林业局夹皮沟经营林场 | Car loaded small sheet cutter |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120808 |