WO2022121371A1

WO2022121371A1 - Antibacterial vacuum cup and processing technology therefor

Info

Publication number: WO2022121371A1
Application number: PCT/CN2021/113876
Authority: WO
Inventors: 应警辉; 赵波; 王俊; 徐益平; 李晨晨; 欧宇欣
Original assignee: 浙江保康电器有限公司
Priority date: 2020-12-08
Filing date: 2021-08-20
Publication date: 2022-06-16
Also published as: CN112617553A

Abstract

An antibacterial vacuum cup, comprising a titanium metal layer (1), an inner container layer (2) and a shell (4) which are concentrically arranged. The titanium metal layer (1) is wrapped with the inner container layer (2), and the inner container layer (2) is wrapped with the shell (4). A titanium base (1-1) is welded to the bottom of the titanium metal layer (1), and an inner container base (2-1) is welded to the bottom of the inner container layer (2). The bottom of the titanium metal layer (1) is located below the bottom of the inner container layer (2), an edge folding structure (3) is formed at the bottom of the inner container layer (2), and a gap is formed between the edge folding structure (3) and the outer surface of the titanium metal layer (1). The top of the titanium metal layer (1) is welded and fixed to the top of the inner container layer (2), and the top of the shell (4) is welded and fixed to the inner container layer (2). The length of the titanium metal layer (1) is larger than that of the inner container layer (2), such that the bottom of the titanium metal layer (1) and the bottom of the inner container layer (2) have a height difference, and interference with the inner container layer (2) is avoided in the process of welding the titanium base (1-1) at the bottom of the titanium metal layer (1); and the edge folding structure (3) is formed at the bottom of the inner container layer (2), the bottom of the inner container layer (2) does not interfere with the titanium metal layer (1) in the welding process of the inner container layer (2) and the inner container base (2-1).

Description

An antibacterial thermos cup and its processing technology

technical field

The invention belongs to the technical field of thermal insulation cups, in particular to an antibacterial thermal insulation cup and a processing technology thereof.

Background technique

The thermos cup is generally a water container made of ceramic or stainless steel plus a vacuum layer. The top has a cover and is tightly sealed. The vacuum insulation layer can delay the heat dissipation of liquids such as water inside to achieve the purpose of heat preservation. The thermos cup is developed from the thermos bottle. The principle of insulation is the same as that of the thermos bottle, but people make the bottle into a cup for convenience. Titanium liner refers to the inner liner of the electric water heater made of titanium-containing metal. This liner has high strength, high temperature resistance, corrosion resistance, and stable performance. There are horizontal, vertical, cylinder, and cube options.

At present, the titanium metal liner thermos on the market is often complicated in structure and has low use value. In order to look good and not rust, it is made of titanium alloy or stainless steel. Titanium alloy is expensive, and stainless steel has no luster, which affects the appearance. Chinese Patent No. CN111250620A discloses a thermos cup with a titanium composite inner liner and its manufacturing process, including an inner liner body, the inner liner body comprising a first inner liner layer and a second inner liner layer, the first inner liner layer and the third inner liner The two inner bladder layers are concentrically arranged, the first inner bladder layer is made of stainless steel or copper material or iron material or aluminum material, the second inner bladder layer is made of titanium material, and the lower end of the inner bladder body is provided with a first bottom layer and a second inner bladder layer. Two bottom layers, the first bottom layer is made of stainless steel, the second bottom layer is made of titanium material, the first bottom layer is fixedly connected to the lower end of the first inner layer, and the second bottom layer is fixedly connected to the lower end of the second inner layer .

The titanium metal layer and the inner bladder layer of the heat preservation cup disclosed above are processed and formed synchronously, and after the threading is completed, the titanium metal layer and the inner bladder layer are synchronously spun. Since the inner bladder layer and titanium are different metals, they have different extensions. In the actual shaping and spinning process, it is difficult for the inner layer and the titanium metal layer to achieve effective spinning accuracy.

And in the manufacturing process of the thermos cup disclosed above, the height of the titanium metal layer and the bottom of the inner tank layer is the same. During the welding process of the titanium metal layer, the inner tank layer will definitely interfere, and the titanium metal layer is located on the inner side. It is difficult to achieve reasonable, effective and reliable welding of the titanium metal layer during operation, which affects the sealing and antibacterial properties of the titanium metal layer.

SUMMARY OF THE INVENTION

In order to overcome the above-mentioned defects in the prior art, the present invention provides a simple structure, stable welding, safe and reliable antibacterial thermos cup and its processing technology.

In order to achieve the above purpose, the technical solution adopted in the present invention is: an antibacterial thermos cup, comprising a titanium metal layer, an inner liner layer and an outer shell arranged concentrically, the inner liner layer is wrapped outside the titanium metal layer, and the outer shell is wrapped in the inner liner layer The bottom of the titanium metal layer is welded with a titanium base, and the bottom of the inner bladder layer is welded with an inner bladder base; the bottom of the titanium metal layer is located below the bottom of the inner bladder layer, and the bottom of the inner bladder layer is formed with a folding structure. A gap is formed between the titanium metal layer and the outer surface of the titanium metal layer; the top of the titanium metal layer and the top of the inner bladder layer are welded and fixed, and the top of the outer shell and the inner bladder layer are welded and fixed.

As a preferred solution of the present invention, the hemming structure and the bottom of the inner bladder layer are integral structures, and the hemming structure includes a connected horizontal section and a connecting section, and both the horizontal section and the connecting section are annular structures.

As a preferred solution of the present invention, the inner side of the horizontal section is connected to the bottom of the inner bladder layer, the connecting section is connected to the outer side of the horizontal section, and the connecting section is arranged in parallel with the outer surface of the corresponding titanium metal layer.

As a preferred solution of the present invention, the inner tank base includes a bottom plate and a connecting ring connected to the edge of the bottom plate, and the connecting ring is arranged in parallel with the outer surface of the corresponding titanium metal layer.

As a preferred solution of the present invention, the connecting ring is welded and fixed to the connecting section, the connecting ring is connected to the inner wall of the connecting section, and the top of the connecting ring is abutted against the horizontal section.

As a preferred solution of the present invention, the inner container base is arranged by wrapping the bottom of the titanium metal layer and the titanium base.

As a preferred solution of the present invention, the titanium metal layer and the inner liner layer are respectively formed by spinning.

As a preferred solution of the present invention, the outer shell and the inner bladder layer are made of stainless steel material, copper material, iron material or aluminum material.

A processing technology of an antibacterial thermos cup, comprising the following steps:

Step A: select two metal pipes and titanium pipes with different lengths, the length of the metal pipes is smaller than that of the titanium pipes, and the diameter of the metal pipes is larger than the diameter of the titanium pipes;

Step B: The metal pipe and the titanium material pipe are separately processed by the spinning process. The thickness of the metal pipe is spinned to 0.3-0.6mm to form the inner bladder layer, and the thickness of the titanium material pipe is spinned to 0.2-0.3mm to form the titanium material. metal layer;

Step C: Bending one end of the inner bladder layer to form a hemming structure;

Step D: the inner bladder layer is sleeved outside the titanium metal layer, the inner bladder layer is closely attached to the titanium metal layer, a gap is formed between the folding structure and the titanium metal layer, and the length of the inner bladder layer is less than the length of the titanium metal layer ;

Step E: Align the top of the inner bladder layer with the top of the titanium metal layer, and weld and fix the top of the inner bladder layer and the top of the titanium metal layer;

Step F: welding and sealing the bottom of the titanium metal layer;

Step G: welding and sealing the bottom of the inner bladder layer;

Step H: Weld the outer shell outside the inner bladder layer.

The beneficial effect of the present invention is that compared with the prior art: by setting the length of the titanium metal layer to be greater than the length of the inner bladder layer, the height difference between the bottom of the titanium metal layer and the bottom of the inner bladder layer is different, and the titanium metal layer is welded at the bottom of the titanium metal layer. The base does not interfere with the inner bladder layer, and the bottom of the inner bladder layer forms a folded structure, and the bottom of the inner bladder layer does not interfere with the titanium metal layer during the welding process with the inner bladder base; at the same time, the titanium metal layer, the inner bladder layer And the shell is processed separately, so that the whole has better precision and reliability.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the connection schematic diagram of titanium metal layer and inner tank layer;

Fig. 3 is the connection schematic diagram of titanium metal layer and titanium base;

Fig. 4 is the connection schematic diagram of the inner bladder layer and the inner bladder base;

Fig. 5 is the partial enlarged view of A place in Fig. 4;

Reference signs in the figure: titanium metal layer 1, titanium base 1-1, inner tank layer 2, inner tank base 2-1, connecting ring 2-2, bottom plate 2-3, folding structure 3, horizontal section 3-1 , connecting section 3-2, shell 4.

Detailed ways

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in Figures 1-5, an antibacterial thermos cup includes a titanium metal layer 1, an inner liner 2 and an outer shell 4 that are concentrically arranged. The inner liner 2 is wrapped around the titanium metal layer 1, and the outer shell 4 is wrapped around the inner liner. 2 outside; the titanium base 1-1 is welded at the bottom of the titanium metal layer 1, and the inner bladder base 2-1 is welded at the bottom of the inner bladder layer 2; the bottom of the titanium metal layer 1 is located below the bottom of the inner bladder layer 2, and the bottom of the inner bladder layer 2 is formed. There is a folding structure 3, and a gap is formed between the folding structure 3 and the outer surface of the titanium metal layer 1;

The inner wall of the inner bladder layer 2 is in contact with the outer wall of the titanium metal layer 1. After the top of the inner bladder layer 2 and the top of the titanium metal layer 1 are welded and fixed, the bottom of the titanium metal layer 1 is located below the bottom of the inner bladder layer 2. The bottom of the metal layer 1 is exposed to the air, and the bottom of the titanium metal layer 1 will not interfere with the inner tank layer 2 when welding the titanium base 1-1, which also facilitates the welding of the titanium base 1-1 and the titanium metal layer 1. The inner tank base 2-1 is welded on the hemming structure 3 of the inner bladder layer 2, and the hemming structure 3 extends along the outer side of the inner bladder layer 2, so that a gap is formed between the hemming structure 3 and the outer surface of the titanium metal layer 1, which is convenient for internal Welding of the gallbladder base 2-1.

The hemming structure 3 is an integral structure with the bottom of the inner bladder layer 2. The hemming structure 3 includes a horizontal section 3-1 and a connecting section 3-2 connected to each other. The horizontal section 3-1 and the connecting section 3-2 are both annular structures. The inner side of the horizontal section 3-1 is connected to the bottom of the inner bladder layer 2, the connecting section 3-2 is connected to the outer side of the horizontal section 3-1, and the connecting section 3-2 is arranged in parallel with the outer surface of the corresponding titanium metal layer 1.

The hemming structure 3 is obtained by turning the bottom of the inner bladder layer 2 outwards, and then turning the outwardly inverted section downwards. A cavity structure with a certain gap is formed between the hemming structure 3 and the inner bladder layer 2, which is convenient for The placement and connection of the top of the inner tank base 2-1, and the cavity structure with a certain gap also facilitates the welding of the inner tank base 2-1 with the inner tank layer 2 to reduce the interference of the titanium metal layer 1 to the inner tank layer 2 .

A stepped structure is formed between the hemming structure 3 and the inner bladder layer 2, the horizontal section 3-1 and the connecting section 3-2 are arranged vertically at 90°, and the horizontal section 3-1 and the inner bladder layer 2 are also arranged in a vertical manner. Vertically arranged at 90°, the connecting section 3-2 is arranged in parallel with the inner bladder layer 2, and a gap is formed between the connecting section 3-2 and the titanium metal layer 1.

The inner tank base 2-1 includes a bottom plate 2-3 and a connecting ring 2-2 connected to the edge of the bottom plate 2-3. The connecting ring 2-2 is arranged in parallel with the outer surface of the corresponding titanium metal layer 1. The connecting section 3-2 is welded and fixed, the connecting ring 2-2 is connected to the inner wall of the connecting section 3-2, and the top of the connecting ring 2-2 is abutted against the horizontal section 3-1.

The connecting ring 2-2 and the bottom plate 2-3 are integrally formed. The size of the bottom plate 2-3 is larger than that of the titanium base 1-1. The top of the connecting ring 2-2 is located between the folding structure 3 and the inner bladder layer 2. In the cavity structure with a certain gap, the inner tank base 2-1 and the inner tank layer 2 are fixedly connected by welding. At this time, the top of the connecting ring 2-2 is abutted against the horizontal section 3-1, and the top side wall of the connecting ring 2-2 is It is in contact with the connecting segment 3-2, and the top side wall of the connecting ring 2-2 and the bottom connecting part of the connecting segment 3-2 are fixedly connected by welding.

The inner tank base 2-1 is set by wrapping the bottom of the titanium metal layer 1 and the titanium base 1-1. The titanium metal layer 1 and the inner tank layer 2 are respectively formed by spinning, and the formed tube blank is thinned by a spinning and rolling process. At the same time, it is rolled and elongated. After the tube blank after rolling and elongated is cleaned, it is laser welded with the inner bottom of the same material to form a semi-closed barrel as the inner part of the thermos cup. The tube embryo after spinning thin and elongated not only has fine surface lines, but also increases the volume of the tube embryo under the condition of constant material weight. The utilization rate of materials is greatly improved.

Using the hydraulic expansion process, the pipe of the inner bladder layer 2 is thinned and stretched to a suitable size, that is, the inner diameter of the formed inner bladder layer 2 and the outer diameter of the thinned and stretched titanium metal layer 1 are excessively matched.

Using the principle of stretching, the titanium metal layer 1 is pressed into the inner bladder layer 2, so that the inner bladder layer 2 is tightly wrapped on the tube wall of the titanium metal layer 1 to form an integral inner bladder.

The outer shell 4 and the inner bladder layer 2 are made of stainless steel, copper, iron or aluminum.

Step A: Selecting two metal pipes and titanium pipes with different lengths, the length of the metal pipes is smaller than that of the titanium pipes, and the diameter of the metal pipes is larger than the diameter of the titanium pipes.

Step B: The metal pipe and the titanium material pipe are separately processed by a spinning process, the thickness of the metal pipe is spin-pressed to 0.13-0.2mm to form the inner bladder layer 2, and the thickness of the titanium material pipe is spin-pressed to 0.2-0.3mm to form Titanium metal layer 1.

Step C: Bending one end of the inner bladder layer 2 to form a hemming structure 3, so that a cavity structure with a certain gap is formed between the hemming structure 3 and the inner bladder layer 2, which is convenient for the later stage of the inner bladder base 2-1. Welded to fix.

Step D: Sleeve the inner bladder layer 2 outside the titanium metal layer 1, the inner bladder layer 2 and the titanium metal layer 1 are closely attached, and use the hydraulic expansion process to thin and elongate the pipe of the inner bladder layer 2. The size, that is, the inner diameter of the formed inner bladder layer 2 is excessively matched with the outer diameter of the titanium metal layer 1 after spinning thin and stretched.

A gap is formed between the folding structure 3 and the titanium metal layer 1, and the length of the inner bladder layer 2 is less than the length of the titanium metal layer 1, so that the bottom of the titanium metal layer 1 is exposed to the air, which is convenient for the titanium base 1-1 and the titanium metal layer. Connections between layers 1.

Step E: Align the top of the inner bladder layer 2 and the top of the titanium metal layer 1, and weld and fix the top of the inner bladder layer 2 and the top of the titanium metal layer 1, and connect the top of the inner bladder layer 2 to the titanium metal layer 1 by laser welding. The top of the metal layer 1 is fixed.

Step F: welding and sealing the bottom of the titanium metal layer 1, and welding the titanium base 1-1 to the bottom of the titanium metal layer 1 by laser welding.

Step G: welding and sealing the bottom of the inner bladder layer 2, and welding the inner bladder base 2-1 to the bottom of the inner bladder layer 2 by laser welding.

Step H: Weld the outer shell 4 outside the inner bladder layer 2 .

Based on the advantages of strong antibacterial, anti-corrosion and light weight of titanium metal, the thermos cup produced by this process not only has the thermal insulation performance of traditional thermos cups, but also has the characteristics of antibacterial and anti-corrosion. Greatly improves the service life of the vacuum flask.

The above description of the disclosed embodiments enables any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention; thus , the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the reference numbers in the figure are used more in this article: titanium metal layer 1, titanium base 1-1, inner bladder layer 2, inner bladder base 2-1, connecting ring 2-2, bottom plate 2-3, hemming structure 3. Terms such as horizontal section 3-1, connecting section 3-2, housing 4, etc., but do not exclude the possibility of using other terms; these terms are used only to describe and explain the essence of the present invention more conveniently; explain them Any additional limitation is contrary to the spirit of the present invention.

Claims

An antibacterial thermos cup is characterized in that it comprises a titanium metal layer (1), an inner liner (2) and an outer shell (4) arranged concentrically, wherein the inner liner (2) is wrapped outside the titanium metal layer (1), and the outer shell (4) wrapped outside the inner bladder layer (2); a titanium base (1-1) is welded at the bottom of the titanium metal layer (1), and an inner bladder base (2-1) is welded at the bottom of the inner bladder layer (2); The bottom of the titanium metal layer (1) is located below the bottom of the inner bladder layer (2), and the bottom of the inner bladder layer (2) is formed with a hemming structure (3), and the hemming structure (3) is outside the titanium metal layer (1). A gap is formed between the surfaces; the top of the titanium metal layer (1) is welded and fixed to the top of the inner bladder layer (2), and the top of the outer shell (4) is welded and fixed to the inner bladder layer (2).
An antibacterial thermos cup according to claim 1, characterized in that the hemming structure (3) and the bottom of the inner bladder layer (2) are integral structures, and the hemming structure (3) comprises a horizontal section ( 3-1) and the connecting section (3-2), the horizontal section (3-1) and the connecting section (3-2) are all annular structures.
The antibacterial thermos cup according to claim 2, characterized in that the inner side of the horizontal section (3-1) is connected to the bottom of the inner bladder layer (2), and the connecting section (3-2) is connected to the horizontal section (3-2). On the outside of -1), the connecting section (3-2) is arranged in parallel with the outer surface of the corresponding titanium metal layer (1).
The antibacterial thermos cup according to claim 1, characterized in that the inner container base (2-1) comprises a bottom plate (2-3) and a connecting ring (2-3) connected to the edge of the bottom plate (2-3). 2), the connecting ring (2-2) is arranged in parallel with the outer surface of the corresponding titanium metal layer (1).
The antibacterial thermos cup according to claim 4, wherein the connecting ring (2-2) is welded and fixed to the connecting segment (3-2), and the connecting ring (2-2) is connected to the connecting segment (3-2). -2) The inner wall, and the top of the connecting ring (2-2) is abutted against the horizontal section (3-1).
The antibacterial thermos cup according to claim 1, characterized in that the inner container base (2-1) is arranged by wrapping the bottom of the titanium metal layer (1) and the titanium base (1-1).
An antibacterial thermos cup according to claim 1, characterized in that, the titanium metal layer (1) and the inner liner (2) are respectively formed by spinning.
An antibacterial thermos cup according to claim 1, characterized in that, the outer shell (4) and the inner liner (2) are made of stainless steel, copper, iron, or aluminum.
A processing technique for an antibacterial thermos cup, characterized in that it comprises the following steps:

Step A: select two metal pipes and titanium pipes with different lengths, the length of the metal pipes is smaller than that of the titanium pipes, and the diameter of the metal pipes is larger than the diameter of the titanium pipes;

Step B: the metal pipe and the titanium material pipe are separately processed by the spinning process, the thickness of the metal pipe is spin-pressed to 0.13-0.2mm to form the inner bladder layer (2), and the thickness of the titanium material pipe is spin-pressed to 0.2-0.3mm , forming a titanium metal layer (1);

Step C: bending one end of the inner bladder layer (2) to form a hemming structure (3);

Step D: the inner bladder layer (2) is sleeved outside the titanium metal layer (1), the inner bladder layer (2) is closely attached to the titanium metal layer (1), and the folding structure (3) is connected to the titanium metal layer (1). ) to form a gap, and the length of the inner bladder layer (2) is less than the length of the titanium metal layer (1);

Step E: aligning the top of the inner bladder layer (2) with the top of the titanium metal layer (1), and welding and fixing the top of the inner bladder layer (2) and the top of the titanium metal layer (1);

Step F: welding and sealing the bottom of the titanium metal layer (1);

Step G: welding and sealing the bottom of the inner bladder layer (2);

Step H: welding the outer shell (4) outside the inner bladder layer (2).
The processing technology of an antibacterial thermos cup according to claim 9, characterized in that, the outer shell (4) and the inner liner (2) are made of stainless steel, copper, iron, or aluminum.