CN1460629A

CN1460629A - Vacuum heat-insulating cover and its production process

Info

Publication number: CN1460629A
Application number: CN 03137274
Authority: CN
Inventors: 徐子根
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-03
Filing date: 2003-06-03
Publication date: 2003-12-10
Anticipated expiration: 2023-06-03
Also published as: CN1234574C

Abstract

The present invention relates to a vacuum heat-insulating cap with good heat-insulating effect and smooth and clean cap body capable of preventing bacteria from breeding and multiplying and its production process. It has cap body and cap face, between them a vacuum cavity is formed by means of welding process, and its production process has the following steps: blanking, positive drawing, negative drawing, welding, groove-rolling and evacuating.

Description

A kind of vacuum heat-preserving lid and manufacture craft thereof

Technical field

The present invention relates to a kind of vacuum heat-preserving lid and manufacture craft thereof.Be applicable to insulating utensils, as cup, bottle, bucket etc.

Background technology

Present insulating utensils, as thermos cup, vacuum bottle, heat-preserving container etc., for vessel partly, have and be incubated by vacuum interlayer, but the lid for vessel all is to realize being incubated by general warm material, see Fig. 1, as lid 1 ' inner chamber lining on heat-insulation layers 3 such as asbestos, glass fibre, foamed plastic '.As being to place liquid in these vessel, also must configuration seal ring 4 ', with antiseep, and attack the system screw thread or hasp locking is set at the inwall and the vessel oral area of lid.

Summary of the invention

The technical problem to be solved in the present invention is: a kind of vacuum heat-preserving lid and manufacture craft thereof are provided, this lid is realized the purpose that is incubated by vacuumizing, high insulating effect, saved other warm material, whole lid is smooth succinct, be difficult for growing the procreation bacterium, bring out the best in each other with following vacuum utensil; Good airproof performance when depositing high-temp liquid, the lid that can prevent to jump takes place.Manufacture craft is simply advanced, and weld seam is few.

The technical solution adopted in the present invention is: the vacuum heat-preserving lid, it is characterized in that it has lid and capping, welding forms vacuum chamber between lid and the capping, and the bottom of lid is provided with vacuum orifice and seals, at the equipped seal ring that has ventilation mouth of the neck of lid indentation.

On described seal ring, offer two ventilation mouths symmetrically.

A kind of manufacture craft of vacuum heat-preserving lid is:

A) blanking, according to product specification, by drawing, capping and lid have fallen on punch press respectively;

B) just stretch, according to product specification, by technological requirement, the good positive drawing die of apolegamy, lid is stretched to design size on press;

C) reverse-drawing has been matched the reverse-drawing mould by technological requirement, and design size is arrived in lid reverse-drawing on press, at the vacuum orifice of bottom center drill diameter 2-4 millimeter;

D) welding is welded on capping and vacuum-pumping tube in the top and vacuum orifice of lid, and welding seam grinding is smooth;

E) slot rolling according to position, the dimensional characteristic of equipped seal ring, rolls groove at the neck of lid;

F) vacuumize, vacuumize, after the degree of vacuum of interlayer reaches designing requirement, block up with sealing by vacuum-pumping tube.The manufacture craft of another kind of vacuum heat-preserving lid is:

B) stretch and punching, according to product specification, by technological requirement, matched drawing die, lid is stretched to design size on press, and in the bottom of lid towards 2-4 millimeter hole one;

C) welding, on lid, welding seam grinding is smooth cover welding;

D) slot rolling according to position, the dimensional characteristic of equipped seal ring, rolls groove at the neck of lid;

E) vacuumize, utilize the vacuum orifice of 2-4 millimeter to vacuumize, and spot welding nickel sheet seals one on the aperture, progressively the nickel sheet is heated by vacuum, when degree of vacuum reached requirement, temperature rise reached about 800 ℃, melted the nickel sheet automatically and sealed.

The invention has the beneficial effects as follows: this insulation cover and the following the same vacuum heat-preserving that all adopts of vacuum utensil, upper and lower harmonious, bring out the best in each other, not only high insulating effect has also been saved such as warm materials such as asbestos, glass fibre, foamed plastic, and cost is low; Whole lid is smooth succinct, is difficult for growing the procreation bacterium.Lid is finished by the purpose made seal ring with the locking of vessel, saved in the lid of cup, bottle, bucket and the oral area machining screw of vessel or preparation hasp, be provided with breach on the seal ring, ventilative buffering, avoided high-temp liquid in insulating process, produced the phenomenon generation that impulsive force is washed lid open because of hot gas expands.Manufacture craft is simply advanced, and weld seam is few, percentage of A-class goods height.

Description of drawings

Fig. 1 is the semisectional view of prior art of the present invention.

Fig. 2 is the front view that band of the present invention is analysed and observe.

Fig. 3 is the front view of seal ring among Fig. 2.

Fig. 4 is the left cutaway view of Fig. 3.

Fig. 5 is the diagram of circuit of a kind of manufacture craft of the present invention.

Fig. 6 is the diagram of circuit of the another kind of manufacture craft of the present invention.

The specific embodiment

Shown in Fig. 2,3,4, present embodiment comprises capping 1, lid 2, seal ring 4, vacuum-pumping tube 5, seals 6.

Capping 1 is stainless thin discs, and lid 2 is cylindrical substantially, and the bottom is received the formation neck inward, rolls the groove of circular arc at neck, configuration purpose made seal ring 4 in the groove, and the sealing circle has two ventilation mouth 4-1 symmetrically.Capping 1 welds with lid 2 usefulness argon arc weldings, the cavity that forms promptly is a vacuum chamber, the mouth that vacuumizes is located at the bottom center of lid 2, the slotting one section copper vacuum-pumping tube 5 (being commonly called as tail) in vacuum orifice that has, this pipe stays within it after exhausting vacuum, and block with sealing 6 in the bottom, stifled mode also can be welded; Also have without vacuum-pumping tube, directly from vacuum orifice, vacuumize, and spot welding one nickel sheet seals 6 on vacuum orifice, in the process that vacuumizes, progressively the nickel sheet is heated, when degree of vacuum reached the regulation requirement, temperature rise reached about 800 ℃, melts the nickel sheet automatically and seals.

A kind of manufacture craft of the present invention (also claiming has tail to vacuumize) is:

A) blanking, according to product specification, by drawing, capping 1 and lid 2 have fallen on punch press respectively;

B) just stretch, according to product specification, by technological requirement, the good positive drawing die of apolegamy, lid 2 is stretched to design size on press;

C) reverse-drawing has been matched the reverse-drawing mould by technological requirement, and design size is arrived in lid 2 reverse-drawing on press, at the vacuum orifice of 3 millimeters of bottom center drill diameters;

D) welding is welded on capping 1 and vacuum-pumping tube 5 in the top and vacuum orifice of lid 2, and welding seam grinding is smooth;

E) slot rolling according to position, the dimensional characteristic of equipped seal ring 4, rolls the semi arch groove at the neck of lid 2;

F) vacuumize, vacuumize by vacuum-pumping tube 5, after the degree of vacuum of interlayer reaches designing requirement, block up with sealing 6, periphery welding and reconditioning are smooth.

Another kind of manufacture craft of the present invention (claiming that also anury vacuumizes) is:

B) stretching and punching according to product specification, by technological requirement, have been matched drawing die, and lid 2 is stretched to design size on press, and dash one in 3 millimeters holes in the bottom of lid 2;

C) welding is welded on capping 1 on the lid 2, and welding seam grinding is smooth;

D) slot rolling according to position, the dimensional characteristic of equipped seal ring 4, rolls the semi arch groove at the neck of lid 2;

E) vacuumize, utilize 3 millimeters vacuum orifice to vacuumize, and spot welding nickel sheet seals 6 one on the aperture, progressively the nickel sheet is heated by evacuation process, when degree of vacuum reached requirement, temperature rise reached 800 ℃, melted the nickel sheet automatically and sealed.

Claims

1. a vacuum heat-preserving covers, and it is characterized in that: it has lid (2) and capping (1), and welding forms vacuum chamber between lid and the capping, and the bottom of lid (2) is provided with vacuum orifice and seals (6); At the equipped seal ring (4) that has ventilation mouth (4-1) of the neck of lid (2) indentation.

2. vacuum heat-preserving lid according to claim 1 is characterized in that: offer two ventilation mouths (4-1) symmetrically on described seal ring (4).

3. the manufacture craft of vacuum heat-preserving lid is characterized in that may further comprise the steps:

A) blanking, according to product specification, by drawing, capping (1) and lid (2) have fallen on punch press respectively;

B) just stretch, according to product specification, by technological requirement, the good positive drawing die of apolegamy, lid (2) is stretched to design size on press;

C) reverse-drawing has been matched the reverse-drawing mould by technological requirement, and design size is arrived in lid (2) reverse-drawing on press, at the vacuum orifice of bottom center drill diameter 2-4 millimeter;

D) welding is welded on capping (1) and vacuum-pumping tube (5) in the top and vacuum orifice of lid (2), and welding seam grinding is smooth;

E) slot rolling according to position, the dimensional characteristic of equipped seal ring (4), rolls groove at the neck of lid (2);

F) vacuumize, vacuumize, after the degree of vacuum of interlayer reaches designing requirement, block up with sealing (6) by vacuum-pumping tube (5).

4. the manufacture craft of vacuum heat-preserving lid is characterized in that may further comprise the steps:

B) stretch and punching, according to product specification, by technological requirement, matched drawing die, lid (2) is stretched to design size on press, and in the bottom of lid (2) towards 2-4 millimeter hole one;

C) welding is welded on capping (1) on the lid (2), and welding seam grinding is smooth;

D) slot rolling according to position, the dimensional characteristic of equipped seal ring (4), rolls groove at the neck of lid (2);

E) vacuumize, utilize the vacuum orifice of 2-4 millimeter to vacuumize, and spot welding nickel sheet seals (6) one on the aperture, progressively the nickel sheet is heated by vacuum, when degree of vacuum reached requirement, temperature rise reached about 800 ℃, melted the nickel sheet automatically and sealed.