CN100342812C - Broken screw integrated front and back stretching vacuum thermal insulation cup and producing process - Google Patents
Broken screw integrated front and back stretching vacuum thermal insulation cup and producing process Download PDFInfo
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- CN100342812C CN100342812C CNB2005100492223A CN200510049222A CN100342812C CN 100342812 C CN100342812 C CN 100342812C CN B2005100492223 A CNB2005100492223 A CN B2005100492223A CN 200510049222 A CN200510049222 A CN 200510049222A CN 100342812 C CN100342812 C CN 100342812C
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Abstract
The present invention relates to a broken thread integrated front and back stretching vacuum thermal insulation cup and a production technology thereof, the problem of which to be solved is to provide the broken thread integrated front and back stretching vacuum thermal insulation cup which connects a cup cover and a cup body into a whole by means of broken threads. The vacuum thermal insulation cup has the advantages of good thermal insulation performance and high qualification rate of finished products. The technical scheme for solving the problem is that the vacuum thermal insulation cup comprises the cup cover, a cup bottom and the cup body which is composed of an inner layer and an outer layer, wherein the inner layer and the outer layer are integrally stretched and formed. The bottom end of the outer layer is welded with the cup bottom. The cup bottom, the outer layer and the inner layer form an interlayer which is pumped into vacuum. A sealed vacuum pumping hole is arranged at the cup bottom after the interlayer is pumped into vacuum, and an expansion point which is arranged on the inner wall of the cup cover and broken threads on the outer layer of the cup body are mutually matched and fixed. The present invention can be sued for thermal insulation cup production industry.
Description
Technical field
The present invention relates to a kind of vacuum cup, especially a kind of broken screw integrated front and back stretching vacuum thermal insulation cup and production technology.
Background technology
The bowl cover 1 of the stainless-steel vacuum thermos cup of selling on the existing market and the combination of cup 12 are finished by sealing ring 3.Because sealing ring 3 adopts product of rubber and plastic processing, its compression stress is limited, and material aging after long-time use then loses compressed capability fully, and the adhesion of bowl cover 1 and cup 12 significantly reduces for this reason, even disappears, and this will influence the sealing insulating power.In addition, when cup is turned on one's side, can cause lid.The background technology the most approaching with the present invention is Chinese invention patent " one-body molded vacuum cup of positive and negative drawing and production technology ", publication number: CN1444897A, open day: on October 1st, 2003.
Summary of the invention
The present invention will solve the shortcoming of above-mentioned prior art, solves the problem of existing thermos cup sealability difference, provides a kind of broken screw integrated front and back stretching vacuum thermal insulation cup that bowl cover and cup are connected by interrupted screw-thread, its good heat insulating, product qualified rate height.
The present invention solves the technical scheme that its technical problem adopts: this broken screw integrated front and back stretching vacuum thermal insulation cup, comprise bowl cover, the cup end, by internal layer and the outer cup of forming, internal layer, outer one drawing and forming, outer bottom connects with the cup back welding, form interlayer between the cup end, skin and the internal layer, this interlayer is pumped into vacuum, and the cup bottom has the interlayer sealed hole that vacuumizes, back that is evacuated; Peng that the bowl cover inwall is provided with goes out a little and the outer field interrupted screw-thread of cup cooperatively interacts fixing.
The production technology of this broken screw integrated front and back stretching vacuum thermal insulation cup may further comprise the steps:
1) blanking calculates good material according to shape, the size process of cup;
2) just stretch, select particular manufacturing craft on stretching-machine, to stretch, form the skin of cup;
Further comprising the steps of after just stretching:
3) interrupted screw-thread that expands: with special mould at cup skin expansion plurality of sections from inside to outside interrupted screw-thread;
4) reverse-drawing: select particular manufacturing craft, adopt press to carry out reverse-drawing in the other direction, form the internal layer of cup along just stretching;
5) join glass at the bottom of: the size according to cup prepares the cup end that is complementary with the cup skin, opens at the bottom of cup and vacuumizes the hole;
6) welding: the cup skin good positive and negative drawing is connected together with a cup back welding, and weld grinding is smooth smooth, forms interlayer between the cup end, skin and the internal layer;
7) vacuumize: the hole that vacuumizes at the bottom of cup is evacuated interlayer, will vacuumize the hole sealing then;
8) make bowl cover: the size according to cup is made the bowl cover that is complementary, and the bowl cover inwall with special mould from inside to outside several Peng of expansion go out a little.
The effect that the present invention is useful is: 1) cup and bowl cover screw by interrupted screw-thread, make the stressed increase of sealing ring, guarantee that cup and bowl cover are tight, strong bonded, thereby improve the sealing heat-insulating property greatly and close firmness when covering; 2) positive and negative drawing technology can be guaranteed the perpendicularity of rim of a cup interrupted screw-thread, guarantees that cup closely is connected with bowl cover; 3) the close-fitting lining can increase the thickness of pad, when preventing to weld wall of cup weldering is galled weld seam during broken or polishing welding seams.During production, can be owing to wall of cup weldering broken or weld seam gall and cause interlayer gas leakage, therefore, the qualification rate height of finished product.
Description of drawings
Fig. 1 is the structural representation of background technology;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is a process chart of the present invention;
Fig. 4 is a cup bottom structure schematic diagram of the present invention;
Fig. 5 is the cup bottom structure schematic diagram that the present invention has gradient;
Fig. 6 is the structural representation of close-fitting lining of the present invention.
Among the figure: the 1-bowl cover, 2-vacuumizes the hole, the 3-sealing ring, the 4-interrupted screw-thread, Peng goes out a little 4 ', the 5-internal layer, 6-close-fitting lining, the 7-weld seam, at the bottom of the 8-cup, 9-weld tabs, 10-skin, 11-interlayer, 12-cup.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing:
This broken screw integrated front and back stretching vacuum thermal insulation cup comprises bowl cover 1, the cup end 8, by internal layer 5 and outer 10 cups of forming, and bowl cover 1 is the double-decker that intermediate course 11 is pumped into vacuum.Internal layer 5, outer 10 one drawing and formings, outer 10 bottoms and the cup ends 8 welding, skin 10 is lined with close-fitting lining 6 with cup its inboard of weld, the ends 8.The cup end 8, outer 10 with internal layer 5 between form interlayer 11, this interlayer 11 is pumped into vacuum, cup place, the ends 8 is the sealed hole 2 that vacuumizes after having interlayer 11 being evacuated; Peng by the bowl cover inwall between bowl cover 1 and the cup 12 goes out a little 4 ' cooperate fixing with the outer field interrupted screw-thread 4 of cup.
The production technology of this broken screw integrated front and back stretching vacuum thermal insulation cup may further comprise the steps:
1) blanking: according to cup shape and size, the selection of material thickness calculates blanking, uses one of blanking die punching press diameter 255mm stainless sheet steel on punch press.
2) just stretch: referring to Fig. 3, select particular manufacturing craft, drawing coefficient just stretches the 255mm stainless sheet steel according to product size on stretching-machine in accordance with regulations.Just stretching successively four times, each diameter that forms that stretches successively is 133mm, 101mm, 88mm, 70.4mm.The step circle of stretched diameter 56.32mm then again makes progress on the basis of diameter 70.4mm.The part of diameter 70.4mm forms the skin 10 of cup at last.
Further comprising the steps of after just stretching:
3) interrupted screw-thread that expands: referring to Fig. 3, when reaching design size when just stretching, with special mould at the skin 10 of cup rim of a cup portion expansion interrupted screw-thread 4 (its size is pressed designing requirement) from inside to outside.This routine interrupted screw-thread 4 has four sections on the circumferencial direction of cup, evenly distribute every 90 °.The perpendicularity of screw thread and rim of a cup must guarantee.Interrupted screw-thread 4 also can be expanded into two sections as required, evenly distributes every 180 °; Perhaps totally three sections, evenly distribute every 120 °.
4) reverse-drawing: referring to Fig. 3, select particular manufacturing craft, on press,, carry out reverse-drawing in the other direction, stretch and highly press designing requirement, form the internal layer 5 of cup along just stretching with the part of cup diameter 56.32mm.Interrupted screw-thread 4 just is positioned near the rim of a cup.Internal layer, outer opposing parallel are cut flat outside on lathe.
5) join glass at the bottom of: at the bottom of preparing glass according to design size and requirement (as upper and lower measure-alike circular or go up big, little truncated cone-shaped or other shape down).At the bottom of cup, open 3mm in the middle of 8 and vacuumize hole 2 and vacuumize, and 9 one of the weld tabs of burn-oning.
6) welding: the cup good positive and negative drawing welds together with the cup ends 8 usefulness argon arc welding, in order to ensure weld seam 7 quality, serves as a contrast special close-fitting lining 6 (about loose 10mm, the outer and cup end close-fitting of two ends size and cup) in weld seam 7 inboards.To polish smooth weld seam 7 smooth after welding.
7) vacuumize: on request interlayer 11 is vacuumized with air compressor machine, progressively to weld tabs 9 heating, when temperature was raised to 800 ℃, layer vacuum reached requirement in vacuum, and weld tabs 9 can melt automatically and seal this moment.
8) make bowl cover; Make the bowl cover 1 that is complementary according to the size of cup, and bowl cover 1 inboard with hemispheric Peng of special mould expansion go out a little 4 ', this example is 4.Therefore the production technology of bowl cover 1 is identical with cup, because the height of bowl cover 1 is not high, does not need to join in addition at the bottom of the lid after the stretch process, only joins a cover plate and gets final product.On the cover board the 3mm that opens too vacuumizes hole 2, and spot welding lastblock nickel sheet 9 is smooth smooth weld grinding with after the welding of the lid behind the positive and negative drawing, vacuumize.
At last, the product external diameter of formation is about 70mm, highly is about 120mm, material selection thickness 0.4-0.8mm corrosion resistant plate.The hop count of interrupted screw-thread can be set according to the cup size.Conventional cup 2-4 section, especially big cup is more than 4 sections.
The interrupted screw-thread 4 of cup oral area cooperates Peng in the bowl covers to go out a little 4 ' (quantity unanimity) during use, covers the back and can fasten as long as rotate an angle.
Claims (6)
1, a kind of broken screw integrated front and back stretching vacuum thermal insulation cup, comprise bowl cover (1), the cup end (8), by internal layer (5) and the cup formed of skin (10), internal layer (5), outer (10) one drawing and forming, it is characterized in that: outer (10) bottom and the cup end (8) welding, form interlayer (11) between the cup end (8), outer (10) and the internal layer (5), this interlayer (11) is pumped into vacuum, the cup end (8) locate to have with interlayer (11) be evacuated the back sealed vacuumize hole (2); The interrupted screw-thread (4) that Peng that bowl cover (1) inwall is provided with goes out point (4 ') and cup skin (10) cooperatively interacts fixing.
2, broken screw integrated front and back stretching vacuum thermal insulation cup according to claim 1 is characterized in that: the weld seam (7) between described skin (10) and the cup end (8) is located its inboard and is lined with close-fitting lining (6).
3, broken screw integrated front and back stretching vacuum thermal insulation cup according to claim 1 and 2 is characterized in that: described bowl cover (1) is the double-decker that intermediate course is pumped into vacuum.
4, a kind of production technology of broken screw integrated front and back stretching vacuum thermal insulation cup may further comprise the steps:
1) blanking calculates good material according to shape, the size process of cup;
2) just stretch, select particular manufacturing craft on stretching-machine, to stretch, form the skin (10) of cup;
It is characterized in that: the back that just stretching is further comprising the steps of:
3) interrupted screw-thread that expands: with special mould at cup skin (10) interrupted screw-thread of expansion plurality of sections from inside to outside (4);
4) reverse-drawing: select particular manufacturing craft, adopt press cup to be carried out reverse-drawing through the step circular portion that the back that just stretches forms, form the internal layer of cup along the opposite direction that is just stretching;
5) join glass at the bottom of: the size according to cup prepares the cup end (8) that is complementary with cup skin (10), and (8) are opened and vacuumized hole (2) at the bottom of cup;
6) welding: good cup skin (10) of positive and negative drawing and a cup end (8) are welded together, weld seam (7) is polished smooth smooth, form interlayer (11) between the cup end (8), outer (10) and the internal layer (5);
7) vacuumize: the hole (2) that vacuumizes of (8) is evacuated interlayer (11) at the bottom of the cup, will vacuumize hole (2) sealing then;
8) make bowl cover: the size according to cup is made the bowl cover (1) that is complementary, and bowl cover (1) inwall with special mould from inside to outside several Peng of expansion go out point (4 ').
5, the production technology of broken screw integrated front and back stretching vacuum thermal insulation cup according to claim 4, it is characterized in that: in the described step 6), after (8) welded together at the end with cup the good cup skin (10) of positive and negative drawing, weld seam (7) inboard between cup and the cup end (8) was lined with special close-fitting lining (6).
6, the production technology of broken screw integrated front and back stretching vacuum thermal insulation cup according to claim 4 is characterized in that: in the described step 7), will vacuumize hole (2) sealing and adopt following technology:
Vacuumize burn-on (9) one of weld tabs of hole (2) at the bottom of cup, progressively to weld tabs (9) heating, when temperature was raised to 800 ℃, interlayer (11) vacuum reached requirement in vacuum, and weld tabs this moment (9) can melt automatically and seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100492223A CN100342812C (en) | 2005-01-25 | 2005-01-25 | Broken screw integrated front and back stretching vacuum thermal insulation cup and producing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100492223A CN100342812C (en) | 2005-01-25 | 2005-01-25 | Broken screw integrated front and back stretching vacuum thermal insulation cup and producing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1647732A CN1647732A (en) | 2005-08-03 |
| CN100342812C true CN100342812C (en) | 2007-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100492223A Expired - Fee Related CN100342812C (en) | 2005-01-25 | 2005-01-25 | Broken screw integrated front and back stretching vacuum thermal insulation cup and producing process |
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| CN (1) | CN100342812C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962594A (en) * | 2012-11-05 | 2013-03-13 | 翁钦光 | Manufacturing process of double-layer vacuum kettle body |
| CN102962597A (en) * | 2012-11-09 | 2013-03-13 | 翁钦光 | Manufacturing process of double-layer vacuum pot body |
| CN111185539B (en) * | 2020-01-16 | 2021-07-16 | 浙江安胜科技股份有限公司 | Special-shaped stretch-formed heat-preservation lunch box and preparation method thereof |
| CN112089287B (en) * | 2020-09-23 | 2023-04-25 | 永康市神鹏工贸有限公司 | Grabbing type fixed vacuum cup system and using method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2267693A (en) * | 1992-06-05 | 1993-12-15 | Thermos Ltd | Stopper usable as container |
| CN1113461A (en) * | 1995-01-06 | 1995-12-20 | 赵章康 | Dual-layer drawn stainless steel insulating cup and its manufacture |
| CN1195393A (en) * | 1995-07-24 | 1998-10-07 | 凯文·麦库洛 | Article with interrupted interior threads and mold apparatus for manufacturing same |
| EP0955002A2 (en) * | 1998-05-08 | 1999-11-10 | The Peacock Vacuum Bottle Co. Ltd | Pot |
| CN1444897A (en) * | 2003-04-29 | 2003-10-01 | 徐子根 | Positive and negative drawn and integrated vacuum thermos cup and its prodn. art |
| CN1460629A (en) * | 2003-06-03 | 2003-12-10 | 徐子根 | Vacuum heat-insulating cover and its production process |
-
2005
- 2005-01-25 CN CNB2005100492223A patent/CN100342812C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2267693A (en) * | 1992-06-05 | 1993-12-15 | Thermos Ltd | Stopper usable as container |
| CN1113461A (en) * | 1995-01-06 | 1995-12-20 | 赵章康 | Dual-layer drawn stainless steel insulating cup and its manufacture |
| CN1195393A (en) * | 1995-07-24 | 1998-10-07 | 凯文·麦库洛 | Article with interrupted interior threads and mold apparatus for manufacturing same |
| EP0955002A2 (en) * | 1998-05-08 | 1999-11-10 | The Peacock Vacuum Bottle Co. Ltd | Pot |
| CN1444897A (en) * | 2003-04-29 | 2003-10-01 | 徐子根 | Positive and negative drawn and integrated vacuum thermos cup and its prodn. art |
| CN1460629A (en) * | 2003-06-03 | 2003-12-10 | 徐子根 | Vacuum heat-insulating cover and its production process |
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| Publication number | Publication date |
|---|---|
| CN1647732A (en) | 2005-08-03 |
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Granted publication date: 20071017 Termination date: 20140125 |