CN-121970980-A - Double-layer vacuum tea making cup and manufacturing process thereof

CN121970980ACN 121970980 ACN121970980 ACN 121970980ACN-121970980-A

Abstract

The invention discloses a double-layer vacuum tea making cup and a manufacturing process thereof, wherein the double-layer vacuum tea making cup comprises a shell, an inner container, a vacuum bottom and an outer bottom, wherein the shell and the inner container are of cup-shaped structures coaxially sleeved, and a closed vacuum heat insulation chamber is formed between the shell and the inner container; the vacuum bottom is sealed and welded at the bottom opening of the shell, the outer bottom is fixedly welded at the outer side of the vacuum bottom, and the upper parts of the side walls of the shell and the inner container are matched to form a water outlet kettle nozzle structure. The invention overcomes the technical shortboard of the titanium tea-making cup spout structure, through the integrated spout structure formed by the shell and the liner, not only avoids the leakage risk of the split welding spout, but also ensures the dimensional accuracy and consistency of spout processing, simultaneously, the spout molding realizes shape adjustment only through stamping deformation, no material cutting, splicing or loss, realizes the high-precision molding target of changeable closed section shape and constant circumference of the cup body, ensures the processing accuracy, and simultaneously, maximally maintains the integral structural strength of the cup body.

Inventors

PENG SHUNSHENG
LI CHENG
WANG ZHIJIE
HUANG ZHENGJIA
ZHU BINGJIAN
LI SAISAI
ZHANG YADONG

Assignees

浙江飞剑工贸有限公司

Dates

Publication Date: 20260505
Application Date: 20260319

Claims (7)

1. A double-layer vacuum tea making cup comprises a shell (1), an inner container (2), a vacuum bottom (3) and an outer bottom (4) and is characterized in that the shell (1) and the inner container (2) are of cup-shaped structures coaxially sleeved, a sealed vacuum heat insulation chamber is formed between the shell and the inner container, the vacuum bottom (3) is welded at the opening of the bottom of the shell (1) in a sealing mode to seal the vacuum heat insulation chamber, the outer bottom (4) is fixedly welded on the outer side of the vacuum bottom (3), and the upper portions of side walls of the shell (1) corresponding to the inner container (2) are matched to form a water outlet nozzle structure (5).
2. A process for manufacturing a double-layer vacuum tea cup, which is characterized by comprising the following steps: S1, taking a TA1 plate, and performing blanking, twice stretching, kettle mouth punching, linear cutting, punching, hole flanging and flat bottom working procedures to obtain a shell semi-finished product; S2, taking a TA1 plate, and performing blanking, twice stretching, kettle mouth punching, shaping and linear cutting procedures to obtain a semi-finished product of the liner; s3, taking a TA1 plate, and carrying out blanking, stretching and flattening processes to obtain a vacuum bottom (3), and taking the TA1 plate, and carrying out blanking, stretching and flattening processes to obtain an outsole (4); S4, coaxially sleeving the semi-finished product of the inner container into the semi-finished product of the outer shell, aligning and attaching the spout of the inner container and the semi-finished product of the outer shell, carrying out mouth matching, then carrying out welding mouth fixing, then carrying out vacuum bottom (3) matching, welding at the bottom opening of the semi-finished product of the outer shell, forming a vacuum heat insulation cavity after vacuum exhaust, punching the spout to obtain the outer shell (1) and the inner container (2), then carrying out outer bottom (4) matching, welding at the outer side of the vacuum bottom (3), and finally carrying out whole welding to obtain the double-layer vacuum tea cup.
3. The manufacturing process of the double-layer vacuum tea making cup according to claim 2, wherein the end point A1 of the shell semi-finished product is the highest point of the wire cutting process, the end point A2 is the lowest point of the wire cutting process, and the heights of the two sides of the end point A1 and the end point A2 are equal.
4. The manufacturing process of the double-layer vacuum tea making cup according to claim 2, wherein the end point B1 of the semi-finished product of the inner container is the highest point of the wire cutting process, the end point B2 is the lowest point of the wire cutting process, and the heights of the two sides of the end point B1 and the end point B2 are equal.
5. The process for manufacturing a double-layer vacuum tea cup according to claim 2, wherein the welded junction in the step S4 is fixed as a whole circle of processing welding.
6. The manufacturing process of the double-layer vacuum tea making cup according to claim 2, wherein the whole welding bottom in the step S4 is the re-welding of the whole bottoms of the shell (1), the vacuum bottom (3) and the outsole (4).
7. The manufacturing process of the double-layer vacuum tea making cup according to claim 2 is characterized in that the transition of the special-shaped section formed by stamping the TA1 plate through a die in the steps S1 and S2 is smooth, and the radius of the transition of the round corners of the outer surface is the same.

Description

Double-layer vacuum tea making cup and manufacturing process thereof Technical Field The invention relates to the technical field of tea making cups, in particular to a double-layer vacuum tea making cup and a manufacturing process thereof. Background With the technical development of the daily drinking appliance industry, consumers have raised higher requirements on the material safety, the use functionality and the structural durability of the drinking appliance. The double-layer vacuum cup body has become a main flow structure form of tea making and drinking appliances by virtue of excellent heat insulation, heat preservation and cold preservation performances, wherein the industrial pure titanium TA1 material has the characteristics of excellent biocompatibility, corrosion resistance, light weight, high strength, no heavy metal precipitation and the like, and is increasingly widely applied to high-end tea making cup products. In the prior art, the core structure of the double-layer vacuum tea making cup generally comprises a shell, an inner container, a vacuum bottom and an outer bottom part, a spout structure is required to be arranged on a cup body in a matched mode for adapting to the water outlet requirement of tea brewing, the forming precision, the structural stability and the matching effect of the spout and the cup body directly determine the water outlet performance and the overall finished product yield of a product. The molding difficulty of the pure titanium material is high, and the problems of cracking, wrinkling, uneven deformation and the like of blanks are very easy to occur in cold working processes such as stretching, stamping and the like, particularly the molding process of the special-shaped cup body with the spout becomes a core industry pain point for restricting the mass production of the titanium tea making cup. The forming process of the spout of the titanium tea making cup in the industry is mainly divided into two main flow routes, namely firstly, the integral stretching forming of the cup body is finished, then spout components are assembled independently through a welding process, the process reduces the difficulty in stretching the cup body, but the problems that the spout and the cup body are poor in processing consistency and easy to leak in welding positions are caused, the sealing performance of the product is directly caused, the welding rejection rate is high, and secondly, the stamping forming of the spout is synchronously finished in the stretching process of the cup body, the process can ensure the integration of the spout and the cup body, avoids the welding leakage risk, but the die design and the process planning of the existing process have obvious defects, acute angle design exists at the transition part of the special-shaped cross section of a blank, the stress of the material is seriously uneven in the stamping deformation process, the efficient and stable stretching operation cannot be adapted, the bad phenomena such as cracking and wrinkling of the blank are frequent, and the product yield and the production efficiency are difficult to guarantee. In addition, the structure and process design of the existing titanium double-layer vacuum tea making cup also have a plurality of technical short plates, namely, at the structural design level, part of the cup surface adopts a complex shape with large concave-convex fall, the radius of the fillet transition is not uniform, in the subsequent polishing process, a grinding tool cannot be attached to the cup surface in the whole process to form a large number of polishing dead angles, the polishing operation efficiency is greatly reduced, the uniformity of the surface finish of the cup cannot be ensured, the appearance quality and the use experience of the product are influenced, and at the material forming process level, the existing special-shaped cup section reconstruction process mostly needs to realize shape adjustment through material cutting and splicing, so that unnecessary loss of raw materials is caused, the overall structural strength of the cup is damaged, and the high-precision forming target that the closed section shape of the cup body is changeable and the circumference is constant is not realized. In summary, the structure and the manufacturing process of the titanium double-layer vacuum tea cup in the prior art have the defects of poor molding adaptability, low yield and the like, and severely restrict the large-scale production of the titanium double-layer vacuum tea cup, so the problems need to be improved. Disclosure of Invention Aiming at the defects of poor molding adaptability, low yield and the like in the prior art, the invention provides a novel double-layer vacuum tea making cup and a manufacturing process thereof. In order to solve the technical problems, the invention is realized by the following technical scheme: A double-layer vacuum tea making cup comprises a shell, an inner contain