CN115069869A - Local water swelling preparation process of stainless steel vacuum cup - Google Patents

Local water swelling preparation process of stainless steel vacuum cup Download PDF

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Publication number
CN115069869A
CN115069869A CN202210683398.8A CN202210683398A CN115069869A CN 115069869 A CN115069869 A CN 115069869A CN 202210683398 A CN202210683398 A CN 202210683398A CN 115069869 A CN115069869 A CN 115069869A
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CN
China
Prior art keywords
stainless steel
opening
lower die
water expansion
water
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210683398.8A
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Chinese (zh)
Inventor
刘新泉
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Foshan Kudi Hardware Co ltd
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Foshan Kudi Hardware Co ltd
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Priority to CN202210683398.8A priority Critical patent/CN115069869A/en
Publication of CN115069869A publication Critical patent/CN115069869A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/047—Mould construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/18—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

The invention relates to the technical field of stainless steel vacuum cup preparation, in particular to a local water expansion preparation process of a stainless steel vacuum cup, which comprises the steps of outer shell processing, inner shell processing and assembly of an outer shell and an inner shell; the bulging process of the inner shell adopts a local water swelling process, and specifically comprises primary forming and secondary forming. The cylindrical blank is subjected to layered water expansion molding by utilizing a local water expansion technology, so that the problem of certain cup shapes which cannot be manufactured by the traditional water expansion process technology is solved; the technology effectively reduces the cracking phenomenon of 90 percent of the blank pipe caused by compression expansion when water rises. The process is a breakthrough in the traditional vacuum cup industry and gets rid of the phenomenon that the conventional opposite cups cannot be molded or are difficult to mold. The local water expansion technology effectively reduces the cracking phenomenon of 90 percent of the parison tube caused by compression expansion when water is expanded.

Description

Local water swelling preparation process of stainless steel vacuum cup
Technical Field
The invention relates to the technical field of stainless steel vacuum cups, in particular to a local water expansion preparation process of a stainless steel vacuum cup.
Background
The vacuum cup is generally a water container with a vacuum heat insulation layer, the top of the vacuum heat insulation layer is provided with a cover, the vacuum heat insulation layer is tightly sealed, and liquid filled in the vacuum heat insulation layer delays heat dissipation, so that the heat insulation purpose is achieved.
In the process of manufacturing the stainless steel vacuum cup, the liner is mainly manufactured by adopting a stretching process (tube drawing process). The inner container prepared by drawing is a mode of repeatedly stamping a thick stainless steel sheet and gradually forming a stainless steel pipe through the plasticity of a die. The stainless steel cup pipe blank formed by the drawing process is seamless, and the inner wall is clean. The stretching process cannot stretch in place at one time, and particularly under the condition that the diameters of the water cups are different from each other, obvious stretching traces exist, which cannot be avoided, but can be eliminated through processes such as polishing and the like. The drawing process has definite requirements on the wall thickness of the water cup, the wall thickness cannot be too thin, and otherwise, the problems of deformation, damage and the like can occur.
The problems of difficult stretching, higher stretching operation requirement and higher cost exist in the prior stretching process of the stainless steel water cup. Particularly, aiming at the stainless steel water cup with an irregular upper part and a special lower part, the required inner container of the stainless steel water cup can not be prepared by the stretching process obviously.
Therefore, a new preparation process is provided for the current preparation process of the stainless steel water cup.
Disclosure of Invention
Based on the existing technology that the stainless steel water cup adopts the stretching technology to prepare the liner of the stainless steel water cup, the operation difficulty is higher, the preparation cost is higher, and the problem that the special-shaped liners are not easy to be formed in one step and are easy to cause defective products is solved.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a local water swelling preparation process of a stainless steel vacuum cup comprises outer shell processing, inner shell processing and assembly of the outer shell and the inner shell;
processing a shell, namely cutting a pipe, expanding, segmenting, expanding, rolling a middle angle, shrinking a bottom, cutting the bottom, punching ribs, flattening an upper opening, punching the bottom, flattening a bottom opening, and washing and drying;
processing an inner shell, namely cutting a pipe, flattening the pipe, expanding, rolling an upper corner, flattening an upper opening, flattening a bottom opening, rolling a thread, cleaning, drying, butt welding and detecting water leakage;
assembling the outer shell and the inner shell; preparing a cup opening, a welding opening, pressing a middle sole, welding a bottom, detecting the welding opening, welding the bottom, vacuumizing, electrolyzing, polishing and pressing an outer sole;
specifically, a local water swelling process is adopted in the swelling process of the inner shell, and the method comprises the following steps:
step 1, performing primary molding, namely firstly, taking a stainless steel blank to enter a water expansion mold, wherein the stainless steel blank enters a first molding mold cavity of the water expansion mold;
the water expansion die is provided with a lower die knockout supporting plate, an elastic supporting piece is arranged between the lower die supporting plate and the lower die base, and the elastic supporting piece supports the lower die knockout supporting plate to move upwards; a water expansion water sealing area is formed at the joint of the Harvard block movable assembly and the lower die assembly, and the Harvard block movable assembly is rotatably connected with the lower die knockout supporting plate and forms a die assembly position or a die opening position; two ends of the lower half block movable assembly at the die closing position are respectively matched with the upper die assembly and the lower die assembly to form a water expansion cavity; under the mold closing position, primary molding of the stainless steel blank is completed in the first molding cavity to form a molded blank;
step 2, secondary molding, namely, a lower mold sliding block is arranged on the water expansion mold and slides to enable the primarily molded blank to enter a second molding cavity for secondary molding;
an elastic supporting piece is arranged between the lower die knockout supporting plate and the lower die base, the elastic supporting piece supports the lower die knockout supporting plate to move upwards, a water expansion water sealing area is formed at the joint of the Harvard block movable assembly and the lower die assembly, and the Harvard block movable assembly is rotatably connected with the lower die knockout supporting plate and forms a die closing position or a die opening position;
and the lower half block movable assembly at the die closing position respectively matches two ends of the lower half block movable assembly with the upper die assembly and the lower die assembly to finish the final shape.
Preferably, the first molding cavity conforms to the shape of the body, and the second molding cavity has a greater local detail than the first molding cavity to conform to the final molded shape.
The primary molding is mainly to carry out water expansion molding on the main outline, and the secondary molding is to carry out local thinning molding on details.
Preferably, the pipe cutting is realized by taking a stainless steel raw material pipe, cutting and taking the stainless steel raw material pipe according to the size requirement, and the pipe flattening is realized by flattening the pipe opening to ensure that the flat opening is uniform and has no notch and no rough edge.
Preferably, the upper rolling corner is used for rolling the bulging inner shell protruding corner by using a vehicle window until the bulging inner shell protruding corner meets the size requirement; leveling the upper opening and the lower opening, and leveling the opening uniformly by using an instrument vehicle without a notch and a burr; the thread rolling is to prepare threads on the pipe orifice by adopting a thread machine.
Traditional water rises the technique for one shot forming, does not have too big influence to cylinder cup tradition technique, nevertheless to heterotypic cup, traditional one shot forming can appear the phenomenon of bursting to the thinner position of product, and local water rises the technique to cylindrical stock layering water rise moulding, will reduce heterotypic cup water rise's the phenomenon of bursting by a wide margin.
The beneficial effects of the invention are: the cylindrical blank is subjected to layered water expansion molding by utilizing a local water expansion technology, so that the problem of certain cup shapes which cannot be manufactured by the traditional water expansion process technology is solved; the technology effectively reduces the cracking phenomenon of 90 percent of the blank pipe caused by compression expansion when water rises. The process is a breakthrough in the traditional vacuum cup industry and gets rid of the phenomenon that the conventional opposite cups cannot be molded or are difficult to mold. The local water expansion technology effectively reduces the cracking phenomenon of 90 percent of the parison tube caused by compression expansion when water is expanded.
Detailed Description
The technical solution of the present invention will be further specifically described below by way of specific examples. In the present invention, the raw materials and equipment used are commercially available or commonly used in the art, unless otherwise specified. The methods in the following examples are conventional in the art unless otherwise specified.
Example (b): a stainless steel thermos cup, the preparation of which mainly comprises the processing of an outer shell, the processing of an inner shell and the assembly of the outer shell and the inner shell;
wherein:
the shell processing comprises pipe cutting, bulging, sectioning, bulging, central angle rolling, bottom shrinking, bottom cutting, rib punching, upper opening flattening, bottom punching, bottom opening flattening, washing and drying; the pipe cutting is to take a stainless steel raw material pipe, cut and take the stainless steel raw material pipe according to the size requirement, and the pipe flattening is to flatten the pipe orifice so that the flat opening is uniform without gaps and burrs.
Processing an inner shell, namely cutting a pipe, flattening the pipe, expanding, rolling an upper corner, flattening an upper opening, flattening a bottom opening, rolling a thread, cleaning, drying, butt welding and detecting water leakage; the pipe cutting is to take a stainless steel raw material pipe, cut and take the stainless steel raw material pipe according to the size requirement, and the pipe flattening is to flatten the pipe orifice so that the flat opening is uniform without gaps and burrs. Rolling the protruding corners of the expanded inner shell to meet the size requirement by using a vehicle window; leveling the upper opening and the lower opening, and leveling the opening uniformly by using an instrument vehicle without a notch and a burr; the thread rolling is to prepare threads on the pipe orifice by adopting a thread machine.
Assembling the outer shell and the inner shell; preparing a cup mouth, a welding opening, pressing a middle sole, welding a bottom, detecting the welding opening, welding the bottom, vacuumizing, electrolyzing, polishing and pressing the outer sole.
Specifically, a local water swelling process is adopted in the swelling process of the inner shell, and the method comprises the following steps:
step 1, performing primary molding, namely firstly, taking a stainless steel blank to enter a water expansion mold, wherein the stainless steel blank enters a first molding mold cavity of the water expansion mold;
the water expansion die is provided with a lower die knockout supporting plate, an elastic supporting piece is arranged between the lower die supporting plate and the lower die base, and the elastic supporting piece supports the lower die knockout supporting plate to move upwards; a water expansion water sealing area is formed at the joint of the Harvard block movable assembly and the lower die assembly, and the Harvard block movable assembly is rotatably connected with the lower die knockout supporting plate and forms a die assembly position or a die opening position; two ends of the lower half block movable assembly at the die closing position are respectively matched with the upper die assembly and the lower die assembly to form a water expansion cavity; under the mold closing position, primary molding of the stainless steel blank is completed in the first molding cavity to form a molded blank;
step 2, secondary molding, namely, a lower mold sliding block is arranged on the water expansion mold and slides to enable the primarily molded blank to enter a second molding cavity for secondary molding;
an elastic supporting piece is arranged between the lower die knockout supporting plate and the lower die base, the elastic supporting piece supports the lower die knockout supporting plate to move upwards, a water expansion water sealing area is formed at the joint of the Harvard block movable assembly and the lower die assembly, and the Harvard block movable assembly is rotatably connected with the lower die knockout supporting plate and forms a die closing position or a die opening position;
and the lower half block movable assembly at the die closing position respectively matches two ends of the lower half block movable assembly with the upper die assembly and the lower die assembly to finish the final shape.
The first molding cavity is in accordance with the shape of the main body, and the second molding cavity is in accordance with the final molding shape by adding local details compared with the first molding cavity.
Traditional water rises technique for one shot forming, does not have too big influence to cylinder cup traditional technique, nevertheless to heterotypic cup, traditional one shot forming can appear the phenomenon of bursting to the thinner position of product, and local water rises the technique to cylindrical stock layering water rise moulding, will reduce heterotypic cup water rise's the phenomenon of bursting by a wide margin.
It will be apparent to those skilled in the art that the embodiments described above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed. It will be apparent to those skilled in the art that certain modifications, combinations, and variations can be made in light of the above teachings.

Claims (4)

1. A local water swelling preparation process of a stainless steel vacuum cup is characterized by comprising the following steps: the method comprises the steps of processing an outer shell, processing an inner shell, and assembling the outer shell and the inner shell;
processing a shell, namely cutting a pipe, expanding, segmenting, expanding, rolling a middle angle, shrinking a bottom, cutting the bottom, punching ribs, flattening an upper opening, punching the bottom, flattening a bottom opening, and washing and drying;
processing an inner shell, namely cutting a pipe, flattening the pipe, expanding, rolling an upper corner, flattening an upper opening, flattening a bottom opening, rolling a thread, cleaning, drying, butt welding and detecting water leakage;
assembling the outer shell and the inner shell; preparing a cup opening, a welding opening, pressing a middle sole, welding a bottom, detecting the welding opening, welding the bottom, vacuumizing, electrolyzing, polishing and pressing an outer sole;
specifically, a local water swelling process is adopted in the swelling process of the inner shell, and the method comprises the following steps:
step 1, performing primary molding, namely firstly, taking a stainless steel blank to enter a water expansion mold, wherein the stainless steel blank enters a first molding mold cavity of the water expansion mold;
the water expansion die is provided with a lower die knockout supporting plate, an elastic supporting piece is arranged between the lower die supporting plate and the lower die base, and the elastic supporting piece supports the lower die knockout supporting plate to move upwards; a water expansion water sealing area is formed at the joint of the Harvard block movable assembly and the lower die assembly, and the Harvard block movable assembly is rotatably connected with the lower die knockout supporting plate and forms a die assembly position or a die opening position; two ends of the lower half block movable assembly at the die closing position are respectively matched with the upper die assembly and the lower die assembly to form a water expansion cavity; under the mold closing position, primary molding of the stainless steel blank is completed in the first molding cavity to form a molded blank;
step 2, secondary molding, namely, a lower mold sliding block is arranged on the water expansion mold and slides to enable the primarily molded blank to enter a second molding cavity for secondary molding;
an elastic supporting piece is arranged between the lower die knockout supporting plate and the lower die base, the elastic supporting piece supports the lower die knockout supporting plate to move upwards, a water expansion water sealing area is formed at the joint of the Harvard block movable assembly and the lower die assembly, and the Harvard block movable assembly is rotatably connected with the lower die knockout supporting plate and forms a die closing position or a die opening position;
and the lower half block movable assembly at the die closing position respectively matches two ends of the lower half block movable assembly with the upper die assembly and the lower die assembly to finish the final shape.
2. The local water expansion preparation process of the stainless steel vacuum cup according to claim 1, characterized in that: the first molding cavity is in accordance with the shape of the main body, and the second molding cavity is in accordance with the final molding shape by adding local details compared with the first molding cavity.
3. The local water expansion preparation process of the stainless steel vacuum cup according to claim 1, characterized in that: the pipe cutting is to take a stainless steel raw material pipe, cut and take the stainless steel raw material pipe according to the size requirement, and the pipe flattening is to flatten the pipe orifice so that the flat opening is uniform without gaps and burrs.
4. The local water expansion preparation process of the stainless steel vacuum cup according to claim 1, characterized in that: rolling the protruding corners of the expanded inner shell to meet the size requirement by using a vehicle window; leveling the upper opening and the lower opening, and leveling the opening uniformly by using an instrument vehicle without a notch and a burr; the thread rolling is to prepare threads on the pipe orifice by adopting a thread machine.
CN202210683398.8A 2022-06-17 2022-06-17 Local water swelling preparation process of stainless steel vacuum cup Pending CN115069869A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210683398.8A CN115069869A (en) 2022-06-17 2022-06-17 Local water swelling preparation process of stainless steel vacuum cup

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210683398.8A CN115069869A (en) 2022-06-17 2022-06-17 Local water swelling preparation process of stainless steel vacuum cup

Publications (1)

Publication Number Publication Date
CN115069869A true CN115069869A (en) 2022-09-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210683398.8A Pending CN115069869A (en) 2022-06-17 2022-06-17 Local water swelling preparation process of stainless steel vacuum cup

Country Status (1)

Country Link
CN (1) CN115069869A (en)

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