Waste-free filter screen production process

Abstract

The invention provides a waste-free filter screen production process which comprises the following steps: rolling a stainless steel sheet into a cylindrical stainless steel cylinder, and welding and fixing two butted ends; the two ends of the stainless steel cylinder are subjected to edge curling treatment to form outer turned edges; the middle position of the stainless steel cylinder is cut, and two cup opening components with the same size are cut out; uniformly punching a plurality of filter holes in the stainless steel sheet; rolling the stainless steel sheet punched with the filter holes into a barrel shape, and welding and fixing the two butted ends to form a filter screen barrel; the cup opening component is assembled at the upper end of the filter screen cylinder, and the joint of the cup opening component and the filter screen cylinder is welded and fixed; stretching the stainless steel wafer to form a bottom cover with an upper opening; the upper opening position of the bottom cover is subjected to edge curling treatment to form an inner turned edge; the bottom of the bottom cover is punched, so that a plurality of filter holes are punched in the bottom of the bottom cover; rolling the side surface of the bottom cover to form a convex clamping rib on the side surface; and the bottom cover is clamped at the lower end of the filter screen cylinder through the clamping ribs.

Description

Technical Field

[0001] The invention relates to a waste-free filter screen production process. Background Art

[0002] Filters are commonly used in teapots and teacups. Currently, filters on the market are usually composed of a cup mouth component, a filter cylinder, and a bottom cover. The three components can be fixed by welding or snapping during assembly. The cup mouth component, filter cylinder, and bottom cover need to be processed and formed separately. Due to the immature production process on the market, a lot of scraps are generated when producing the above three accessories. Although these scraps can be recycled later, recycling requires recycling costs. The scraps generated will also increase the production waste rate, ultimately leading to excessively high filter production costs.

[0003] Therefore, it is necessary to make further improvements. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above problems. We provide a waste-free filter screen production process, which can achieve the goal of generating no waste during the filter screen production process.

[0005] To achieve the above object, the present invention provides a waste-free filter screen production process, which comprises the following steps: A. Cut the stainless steel plate into stainless steel sheets of equal size; B. Roll the stainless steel sheet into a cylindrical stainless steel tube and weld the two ends together; C. Roll the two ends of the stainless steel tube to form an outer flange; D. Cut the middle of the stainless steel cylinder into two cup-shaped components of the same size; E. Fix two or more elastic buckles on the outer surface of the cup mouth component; F. Punch out multiple filter holes evenly on the stainless steel sheet; G. Roll up the stainless steel sheet with the filter holes into a cylinder and weld the two ends together to form a filter cylinder; H. Assemble the cup-mouth component on the upper end of the filter cylinder, and weld and fix the connection between the cup-mouth component and the filter cylinder; 1. Stretching a stainless steel disc to form a bottom cover with an upper opening; J. Roll the upper opening of the bottom cover to form an inward turning edge; K. Punch the bottom of the bottom cover to form multiple filter holes; L. Roll the sides of the bottom cover to form convex ribs; M. The bottom cover is clamped to the lower end of the filter cylinder through a clamping rib.

[0006] In one or more embodiments, in step B, the welded portion of the stainless steel cylinder is polished and ground.

[0007] In one or more embodiments, step E is to fix four elastic clips on the outer surface of the cup mouth component, and the elastic clips are welded and fixed to the cup mouth component.

[0008] In one or more embodiments, the cup mouth component of step D is subjected to rolling processing, so that an annular limiting rib is formed on the surface of the cup mouth component, and the limiting rib abuts against the upper end of the filter cylinder.

[0009] In one or more embodiments, an angle of 10°-15° is formed between the elastic buckle in step E and the outer side surface of the cup mouth component.

[0010] In one or more embodiments, step H is to perform annular welding on the connection between the cup mouth component and the filter cylinder, and polish the weld.

[0011] In one or more embodiments, the bottom cover of step L is subjected to rib pressing treatment to form a sunken platform on the bottom cover, and the sunken platform abuts against the lower end of the filter cylinder.

[0012] Compared with the background technology, the effect of the present invention is that by adopting the filter production process, no excess waste is generated in the process of producing the cup mouth component, filter cylinder and bottom cover, which has the advantages of high raw material utilization and no waste generation, and greatly helps to reduce the production cost of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a flow chart of the filter production process according to an embodiment of the present invention. DETAILED DESCRIPTION

[0014] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be understood as a limitation on the scope of protection of the present invention.

[0015] See attached Figure 1 , the present application provides a waste-free filter screen production process, which includes the following steps: A. Cut the stainless steel plate into stainless steel sheets of equal size; B. Roll the stainless steel sheet into a cylindrical stainless steel tube and weld the two ends together; C. Roll the two ends of the stainless steel tube to form an outer flange; D. Cut the middle of the stainless steel cylinder into two cup-shaped components of the same size; E. Fix two or more elastic buckles on the outer surface of the cup mouth component; F. Punch out multiple filter holes evenly on the stainless steel sheet; G. Roll up the stainless steel sheet with the filter holes into a cylinder and weld the two ends together to form a filter cylinder; H. Assemble the cup-mouth component on the upper end of the filter cylinder, and weld and fix the connection between the cup-mouth component and the filter cylinder; 1. Stretching a stainless steel disc to form a bottom cover with an upper opening; J. Roll the upper opening of the bottom cover to form an inward turning edge; K. Punch the bottom of the bottom cover to form multiple filter holes; L. Roll the sides of the bottom cover to form convex ribs; M. The bottom cover is clamped to the lower end of the filter cylinder through a clamping rib.

[0016] In this embodiment, the welding parts of the stainless steel tube are polished and ground in step B to avoid obvious welding parts and improve the appearance of the stainless steel tube.

[0017] In step E, four elastic clips are fixed on the outer surface of the cup mouth component. The elastic clips are welded and fixed to the cup mouth component. The elastic clips are used to clip onto the teapot or teacup.

[0018] The cup mouth component of step D is rolled to form an annular limiting rib on the surface of the cup mouth component. The limiting rib abuts against the upper end of the filter cylinder. The limiting rib plays a positioning role, making it convenient for the cup mouth component and the filter cylinder to be welded and fixed after docking.

[0019] The elastic buckle in step E forms an angle of 10°-15° with the outer side surface of the cup mouth component, preferably 12°, to avoid the problem of inconvenience in installation caused by too large an angle between the elastic buckle and the cup mouth component.

[0020] In step H, the connection between the cup mouth component and the filter cylinder is circularly welded, and the weld is polished to avoid obvious welding positions and improve the appearance of the stainless steel cylinder.

[0021] The bottom cover of step L is subjected to rib pressing treatment to form a sunken platform on the bottom cover. The sunken platform abuts against the lower end of the filter cylinder. The sunken platform is used for positioning to prevent the bottom cover from being overly embedded in the filter cylinder.

[0022] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. A waste-free filter screen production process, characterized in that: The following steps are involved: A. Cut the stainless steel plate into stainless steel sheets of equal size; B. Roll the stainless steel sheet into a cylindrical stainless steel tube and weld the two ends together; C. Roll the two ends of the stainless steel tube to form an outer flange; D. Cut the middle of the stainless steel tube into two cup-shaped parts of the same size. Item; E. Fix two or more elastic buckles on the outer surface of the cup mouth component; F. Punch out multiple filter holes evenly on the stainless steel sheet; G. Roll up the stainless steel sheet with the filter holes into a cylinder and weld the two ends together to form a filter cylinder; H. Assemble the cup-mouth component on the upper end of the filter cylinder, and weld and fix the connection between the cup-mouth component and the filter cylinder; 1. Stretching a stainless steel disc to form a bottom cover with an upper opening; J. Roll the upper opening of the bottom cover to form an inward turning edge; K. Punch the bottom of the bottom cover to form multiple filter holes; L. Roll the sides of the bottom cover to form convex ribs; M. The bottom cover is clamped to the lower end of the filter cylinder through a clamping rib.

2. A waste-free filter screen production process according to claim 1, characterized in that: In step B, the welding portion of the stainless steel cylinder is polished and ground.

3. The waste-free filter screen production process according to claim 1, characterized in that: Step E: Fix four elastic clips on the outer side of the cup mouth component, and weld the elastic clips to the cup mouth component.

4. The waste-free filter screen production process according to claim 1, characterized in that: The cup mouth component in step D is subjected to rolling processing, so that an annular limiting rib is formed on the surface of the cup mouth component, and the limiting rib abuts against the upper end of the filter cylinder.

5. The waste-free filter screen production process according to claim 1, characterized in that: The elastic buckle in step E forms an angle of 10°-15° with the outer side surface of the cup mouth component.

6. The waste-free filter screen production process according to claim 1, characterized in that: Step H: perform annular welding on the connection between the cup mouth component and the filter cylinder, and polish the welding point.

7. The waste-free filter screen production process according to claim 1, characterized in that: The bottom cover of step L is subjected to rib pressing treatment to form a sunken platform on the bottom cover, and the sunken platform abuts against the lower end of the filter cylinder.

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