Quick-open type small faucet formed by cold heading and bending and preparation process thereof

Abstract

The invention relates to the technical field of faucets, in particular to a quick-open type small faucet formed through cold heading and bending and a preparation process thereof.The quick-open type small faucet comprises a faucet body, the faucet body is formed by bending a blank after stainless steel materials are integrally stamped into the blank through cold stamping equipment, and one end of the faucet body is a water inlet end; and the other end is a water outlet end formed by bending. The quick-open type small faucet is manufactured through the cold stamping bending technology instead of a traditional casting technology, the links of mold manufacturing, smelting casting, tedious polishing and the like are omitted, automatic continuous production is achieved, and the production period is greatly shortened. The preparation process is free of a material heating and smelting process, pollutants such as dust and peculiar smell are avoided, and air pollution is reduced; automatic equipment machining replaces manual polishing, energy consumption in the production process is reduced, unit product energy consumption and pollutant emission are remarkably reduced, and the national energy-saving and environment-friendly development requirements are met.

Description

Technical Field

[0001] This invention relates to the field of faucet technology, and in particular to a quick-opening small faucet formed by cold heading and bending, and its manufacturing process. Background Technology

[0002] Currently, the main body of most common quick-opening faucets on the market is made of materials such as pure copper, zinc alloy, and stainless steel, and is generally produced using traditional casting processes. However, traditional casting processes have many obvious drawbacks: Firstly, the process is relatively complex, requiring the creation of multiple casting molds, melting and casting various materials to a molten state, resulting in a rough surface after molding and cumbersome polishing processes, leading to long production cycles and high labor and time consumption. Secondly, the high cost of pure copper raw materials makes the faucet expensive, while zinc alloy materials are prone to corrosion and cracking, and stainless steel casting also suffers from high costs and complex processing. In addition, traditional casting processes are prone to producing pinholes during production, leading to the risk of leaks in the faucet, and the heating and melting process generates dust and odors, causing serious air pollution. Production also consumes a lot of electricity, and the cumbersome manual polishing process further exacerbates environmental pollution, which is inconsistent with the development trend of energy conservation and environmental protection. Meanwhile, quick-opening faucets produced using traditional casting processes are prone to cracking and breaking under high water pressure or low temperature conditions, posing a greater risk of leakage, having a shorter service life, and requiring improved safety.

[0003] Based on the above background, a quick-opening small faucet formed by cold heading and bending and its manufacturing process are proposed to solve the problem. Summary of the Invention

[0004] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a quick-opening small faucet formed by cold heading and bending, and its manufacturing process.

[0006] To achieve the above objectives, the technical solution of the present invention is: a quick-opening small faucet formed by cold forging and bending, comprising a faucet body, wherein the faucet body is formed by integrally stamping stainless steel material into a blank through a cold stamping equipment and then bending it, wherein one end of the faucet body is the water inlet end and the other end is the bent water outlet end.

[0007] In some embodiments, the stainless steel material is a solid, one-piece molded stainless steel bar.

[0008] In some embodiments, the water outlet is a bent elbow structure that is integrated with the faucet body, and the bending angle of the faucet body after bending is 60°-70°.

[0009] In some embodiments, the faucet body is provided with a valve core mounting position, which is adapted to install a ball valve core, and the ball valve core is connected to a control handle for controlling the flow of water.

[0010] A quick-opening small faucet formed by cold forging includes a faucet body, which includes a first tube and a second tube. Both the first and second tubes are made of stainless steel and are formed by cold stamping equipment. The second tube is bent and then fixedly connected to the first tube by welding or screwing. One end of the first tube is the water inlet and one end of the second tube is the water outlet.

[0011] In some embodiments, the stainless steel material is a solid, one-piece molded stainless steel bar, and the wall thickness of both the first tube and the second tube is 3-4 mm.

[0012] In some embodiments, the bending angle of the second tube is 60°-70°, and a sealing structure is provided at the joint between the first tube and the second tube.

[0013] In some embodiments, a valve core mounting position is provided on the first or second pipe section, the valve core mounting position is adapted to install a ball valve core, and the ball valve core is connected to a control handle for controlling the interruption of water flow.

[0014] A manufacturing process for a quick-opening small faucet formed by cold heading and bending includes the following steps: S1. Select stainless steel bars and stamp them into faucet body blanks or component blanks using cold stamping equipment. S2. The stamped blank is clamped onto a CNC lathe for turning, and the machining accuracy is controlled. S3. Bend the machined parts to form preset angles and dimensions; S4. Connect the parts that need to be welded or screwed together to obtain a semi-finished product; S5. Perform surface brushing and mirror polishing on the semi-finished product to obtain the finished faucet.

[0015] In some embodiments, between steps S3 and S4, step S31 is added, in which valve core mounting holes are machined using a milling machine, the valve core is precisely assembled into the valve core mounting position and fixed, and the valve switch handle is installed.

[0016] By adopting the above technical solution, the beneficial effects of the present invention are: 1. High production efficiency and low production cost: The cold stamping and bending process is used to replace the traditional casting process to produce quick-opening small faucets, eliminating the need for mold making, smelting and casting, and tedious polishing, etc., realizing automated continuous production and significantly shortening the production cycle; the stainless steel round bar material has a high material utilization rate, with less material loss during the production process, and no need for expensive casting equipment, effectively reducing the cost of production equipment and raw materials.

[0017] 2. Energy-saving and environmentally friendly with less pollution: The preparation process does not involve heating and melting materials, avoiding the generation of pollutants such as dust and odors, and reducing air pollution; automated equipment processing replaces manual polishing, reducing energy consumption in the production process, and significantly reducing energy consumption and pollutant emissions per unit product, which meets the national requirements for energy conservation and environmental protection.

[0018] 3. Sturdy structure, good sealing, and long service life: The faucet is made of solid stainless steel bar material, cold-stamped without sand hole defects. The one-piece molding structure or the component sealing connection structure has no water leakage gaps, eliminating water leakage problems from the source; stainless steel material has strong corrosion resistance, and the structure has high mechanical strength after cold stamping and bending. It can withstand extreme environments such as high water pressure and low temperature, and is not easy to crack or break, resulting in a longer product service life.

[0019] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0020] Undoubtedly, such and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and figures.

[0021] To make the above-mentioned beneficial effects and other objects, features and advantages of the present invention more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0023] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0025] Explanation of key figure labels: Figure 1 This is a schematic diagram of the faucet body of the present invention as a whole; Figure 2 This is a schematic diagram of the faucet body of the present invention, which is composed of separate parts. Detailed Implementation

[0026] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples, so that the process of how the present invention uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. It should be noted that, as long as there is no conflict, the various embodiments and features in the various embodiments of the present invention can be combined with each other, and the resulting technical solutions are all within the protection scope of the present invention.

[0027] Furthermore, numerous specific details are set forth in the following description for illustrative purposes to provide a thorough understanding of the embodiments of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced without the specific details or particular methods described herein.

[0028] Please see Figure 1 The present invention provides a quick-opening small faucet formed by cold forging and bending, including a faucet body 1. The faucet body 1 is formed by integrally stamping stainless steel material into a blank through a cold stamping equipment and then bending it. One end of the faucet body 1 is the water inlet end, and the other end is the bent water outlet end.

[0029] Specifically, the faucet body 1 is manufactured using a cold stamping one-piece molding process. Using stainless steel as the raw material, the stainless steel is directly stamped into a continuous faucet body 1 blank under high pressure from a cold stamping machine, eliminating the need for melting and casting. The blank is then bent according to usage requirements, resulting in a faucet with an inlet end and a bent outlet end. The inlet end connects to the water supply pipe, while the outlet end changes the water flow direction to meet daily usage angle requirements. This one-piece cold stamping process eliminates the cumbersome steps of mold making, melting, and casting required by traditional casting, significantly shortening the production cycle. The absence of material melting in the cold stamping process avoids the pinhole problems common in casting, improving the sealing of the faucet body 1 and preventing leaks. The one-piece molded faucet body 1 has strong overall structure and high stability, capable of withstanding higher water pressure and reducing the risk of cracking and breakage during use. Stainless steel combines corrosion resistance and mechanical strength, adapting to the cold stamping process while extending the overall lifespan of the faucet.

[0030] According to some embodiments of this application, optionally, the stainless steel material is a solid, one-piece molded stainless steel bar.

[0031] Specifically, solid, one-piece molded stainless steel bars are selected as the raw material for the faucet. This material is a continuous solid stainless steel coil, without splices or pores. Its material properties are suitable for the high-pressure stamping process of cold stamping equipment, and it is not prone to deformation, cracking, or flaking during the stamping process, ensuring the structural integrity of the blank after stamping. The solid structure of the solid stainless steel bar avoids the porosity defects of the raw material itself, further eliminating the risk of leakage after the faucet is formed. The one-piece molding characteristics of this stainless steel material are compatible with the one-piece cold stamping process, ensuring the forming quality of the faucet body 1, and giving the blank after stamping a uniform thickness and stable mechanical properties.

[0032] According to some embodiments of this application, optionally, the water outlet is a bent elbow structure, which is an integral structure with the faucet body 1, and the bending angle of the faucet body 1 after bending is 60°-70°.

[0033] Specifically, the cold-stamped faucet body 1 blank is bent to form an elbow structure at the water outlet. This elbow structure is an integral, seamless unit with the faucet body 1, providing a stronger seal compared to spliced ​​elbows and eliminating leakage issues. The bending angle is controlled between 60° and 70°, a range designed based on ergonomics and everyday water usage scenarios. This ensures precise water flow to the water area while avoiding inconvenience caused by excessively large or small water outlet angles. The elbow structure, formed integrally with the body, enhances the structural strength of the water outlet and prevents deformation or damage caused by impacts or pressure during use.

[0034] According to some embodiments of this application, optionally, the faucet body 1 is provided with a valve core mounting position, the valve core mounting position is adapted to install a ball valve core, and the ball valve core is connected to a control handle 2 for controlling the flow of water.

[0035] Specifically, a valve core mounting position is pre-set on the faucet body 1. The dimensions of this mounting position are designed according to the general specifications of the ball valve core to achieve precise fit with the ball valve core, ensuring the stability of the valve core after installation and avoiding leakage or malfunction caused by loose valve core. The ball valve core is mechanically connected to the control handle 2. By rotating the control handle 2, the valve ball of the ball valve core can be rotated. When the valve ball is open, water can flow through the faucet; when the valve ball is closed, the water flow is cut off, thereby achieving rapid control of water flow. The ball valve core has the characteristics of fast opening and closing speed and good sealing performance. After fitting, the faucet can achieve the function of quick opening and closing, improving the convenience of use. The mechanical connection structure between the control handle 2 and the ball valve core is simple and the transmission is stable, reducing the probability of faucet failure and facilitating later maintenance and valve core replacement.

[0036] Please see Figure 2A quick-opening small faucet formed by cold forging and bending includes a faucet body 1. The faucet body 1 includes a first pipe section 3 and a second pipe section 4. Both the first pipe section 3 and the second pipe section 4 are made of stainless steel and are formed by cold stamping equipment. After the second pipe section 4 is bent, it is fixedly connected to the first pipe section 3 by welding or screwing. One end of the first pipe section 3 is the water inlet end, and one end of the second pipe section 4 is the water outlet end.

[0037] Specifically, the faucet body 1 is divided into two parts: a first pipe section 3 and a second pipe section 4, both made of stainless steel. These parts are cold-stamped into corresponding blanks. The second pipe section 4 blank is then bent and welded or screwed to the first pipe section 1 to form the complete faucet body 1. The free end of the first pipe section 3 is the water inlet, and the free end of the second pipe section 4 is the water outlet, meeting the basic requirements for water flow and outlet angle. The component stamping method reduces the processing difficulty of complex faucets. For some irregularly shaped or large-sized small faucets, component processing makes it easier to control forming accuracy and improve product yield. The welding or screwing connection provides two options for faucet production: welded connections are more stable, while screwing connections facilitate later disassembly, repair, and component replacement. The component forming still uses cold stamping, retaining the advantages of cold stamping, such as no sand holes, energy saving, environmental protection, and high production efficiency, while also improving the flexibility of faucet structural design.

[0038] According to some embodiments of this application, optionally, the stainless steel material is a solid, one-piece molded stainless steel bar, and the wall thickness of the first tube 3 and the second tube 4 is 3-4 mm.

[0039] Specifically, both the first pipe section 3 and the second pipe section 4 are made of solid, one-piece molded stainless steel bars to ensure that the two pipe sections have the same material properties and mechanical properties, avoiding problems such as weak connection and different corrosion rates caused by material differences. At the same time, the wall thickness of the two pipe sections is controlled at 3-4mm. This wall thickness range combines the processing characteristics of cold stamping and the stress requirements of faucet use. It can ensure that the pipe section is not easily deformed during stamping and bending, and can withstand the water pressure of daily water supply. It can also avoid material waste and increased production costs caused by excessive wall thickness, and avoid pipe deformation and leakage caused by excessive wall thickness.

[0040] According to some embodiments of this application, optionally, the bending angle of the second tube 4 is 60°-70°, and a sealing structure is provided at the joint between the first tube 3 and the second tube 4.

[0041] Specifically, the bending angle of the second pipe section 4 is controlled at 60°-70°, consistent with the bending angle of the one-piece faucet, ensuring that the water flow experience of the component-molded faucet is comparable to that of the one-piece product. A sealing structure is set at the joint of the first pipe section 3 and the second pipe section 4. The sealing structure fills the joint gap, blocking the path of water leakage from the joint gap, effectively solving the sealing problem of the component connection, eliminating the risk of water leakage from the joint gap, and improving the reliability of the component-molded faucet. The sealing structure, in conjunction with welding or screw connection, further enhances the stability of the connection and reduces the risk of loosening caused by water pressure impact or external force collision.

[0042] According to some embodiments of this application, optionally, a valve core mounting position is provided on the first pipe section 3 or the second pipe section 4, the valve core mounting position is adapted to install a ball valve core, and the ball valve core is connected to a control handle 2 for controlling the interruption of water flow.

[0043] Specifically, based on the overall structural design of the faucet, the valve core mounting position is flexibly set on either the first pipe section 3 or the second pipe section 4. The mounting position size is precisely matched with the ball valve core. After installation, the ball valve core is connected to the control handle 2. By rotating the control handle 2, the ball valve core is opened and closed, achieving rapid control of water flow. The setting position of the valve core mounting position is reasonably arranged according to the direction of the water outlet and user habits. The flexible setting of the valve core mounting position enhances the diversity of faucet structural design, allowing the valve core position to be designed according to different usage scenarios and installation requirements, meeting personalized product design needs. The cooperation between the ball valve core and the control handle 2 enables quick opening and closing, ensuring the ease of use of the modular faucet and maintaining consistent performance with the integrated faucet. The precisely matched valve core mounting position ensures the stability of the valve core, preventing leakage or operational malfunctions caused by valve core loosening, and facilitating future valve core maintenance and replacement.

[0044] A manufacturing process for a quick-opening small faucet formed by cold heading and bending includes the following steps: S1. Select stainless steel bars and stamp them into faucet body blanks or component blanks using cold stamping equipment. S2. The stamped blank is clamped onto a CNC lathe for turning, and the machining accuracy is controlled. S3. Bend the machined parts to form preset angles and dimensions; S4. Connect the parts that need to be welded or screwed together to obtain a semi-finished product; S5. Perform surface brushing and mirror polishing on the semi-finished product to obtain the finished faucet.

[0045] Specifically, this process is adapted to the manufacturing process of cold-forged and bent faucets, and consists of five core steps: cold stamping, CNC turning, bending, connection processing, and surface treatment. First, depending on whether the faucet is integrally formed or formed in parts, stainless steel round bars are stamped into corresponding blanks using cold stamping equipment. Then, the blanks are machined using a CNC lathe to ensure the dimensional accuracy of the blanks. Subsequently, the machined parts are bent to form preset angles and shapes. The parts formed in parts are welded or screwed together to form complete semi-finished products. Finally, the semi-finished products undergo wire drawing and polishing surface treatment to obtain the finished faucet. The manufacturing process is compact and the steps are logically connected, enabling automated and standardized production of faucets, significantly improving production efficiency and shortening the production cycle. Each step uses automated equipment, reducing errors from manual operation, ensuring product dimensional accuracy and molding quality, and increasing product yield. Cold stamping and CNC turning processes replace traditional casting processes, eliminating smelting and casting processes, reducing energy consumption and pollutant emissions during production, and meeting energy-saving and environmentally friendly production requirements. Surface brushing and polishing treatments enhance the appearance and texture of the faucet, while also increasing the corrosion resistance of the stainless steel surface and extending the product's service life.

[0046] According to some embodiments of this application, optionally, between steps S3 and S4, step S31 is added, in which the valve core mounting hole is machined using a milling machine, the valve core is precisely assembled to the valve core mounting position and fixed, and the valve switch handle 2 is installed.

[0047] Specifically, after bending and before connection, valve core mounting hole machining and valve core assembly steps are added. Utilizing the high-precision machining characteristics of a milling machine, precise valve core mounting holes are machined at the preset valve core mounting positions. The ball valve core is then precisely assembled into the mounting holes and fixed. Subsequently, the valve switch handle 2 is installed, forming a complete control structure with the valve core and handle. Subsequent connection processing (partial forming) or direct surface treatment (integrated forming) is then performed. Setting the valve core mounting hole machining and valve core assembly steps after bending and before connection facilitates precise machining of the valve core mounting positions by the milling machine, avoiding processing difficulties caused by structural obstruction after connection. Milling ensures the dimensional accuracy of the valve core mounting holes, allowing for precise fit between the valve core and the mounting holes, improving the stability and sealing performance after valve core installation. Completing the assembly of the valve core and handle in advance allows for timely testing of the opening and closing performance of the control structure in subsequent processes, facilitating the timely detection and resolution of valve core assembly faults, and improving the overall product quality.

[0048] According to some embodiments of this application, optionally, in step S1, the stamping pressure of the cold stamping equipment is controlled at 75-95MPa, and the stamping speed is 4-9 times / minute; in step S2, the processing accuracy is controlled within ±0.05mm; in step S3, a bending machine is used for bending; in step S5, a laser welding machine is used for welding, with a welding current of 190-260A and a welding speed of 2-6mm / s; in step S6, the wire drawing direction is axial, and the surface roughness is controlled within Ra=0.5-0.7μm.

[0049] Specifically, in step S1, the stamping pressure of the cold stamping equipment is controlled at 75-95MPa, and the stamping speed is 4-9 times / minute. This parameter range is determined based on the material properties of 304 stainless steel and the product forming requirements, which can improve production efficiency and reduce material waste while ensuring the quality of blank forming. In step S2, the processing accuracy is controlled at ±0.05mm to ensure that the dimensional error of the product is within the allowable range and to ensure the compatibility between various parts. In step S3, a professional bending machine is used for bending, which can accurately control the bending angle and external dimensions. In step S5, the welding current of the laser welding machine is 190-260A, and the welding speed is 2-6mm / s. This parameter combination can ensure the strength and sealing of the welded joint and avoid welding defects. In step S6, the wire drawing direction is axial, and the surface roughness is controlled at Ra=0.5-0.7μm. Axial wire drawing can improve the appearance and texture of the product. Appropriate surface roughness can ensure the aesthetics of the product and avoid problems such as poor grip due to an overly smooth surface or easy contamination due to an overly rough surface.

[0050] According to some embodiments of this application, optionally, the water inlet end is provided with an external thread or quick-connect structure for direct connection to the water supply pipe.

[0051] Specifically, the faucet inlet is equipped with either an external thread or a quick-connect structure. The external thread structure can be directly screwed into a water supply pipe with internal threads, while the quick-connect structure can be snapped into a quick-connect fitting on the water supply pipe. Both structures enable a quick and secure connection between the faucet and the water supply pipe. Both external threads and quick-connect structures are universal connection structures in the water supply field, allowing for direct connection between the faucet and the water supply pipe without the need for additional adapters, thus reducing installation costs. Both connection methods are simple to operate and quick to connect, improving the ease of faucet installation and making them suitable for both professional installers and ordinary users. The connection structure is integrally molded with the inlet, ensuring good sealing and structural stability, avoiding the risk of leakage caused by adapters, and improving the reliability of the faucet-pipe connection.

[0052] Example 1: One-piece cold-forged bending quick-opening small faucet: Please see Figure 1A quick-opening small faucet formed by cold heading and bending includes a faucet body 1. The faucet body 1 is made of a solid, one-piece 304 stainless steel round bar, which is stamped into a blank by cold stamping equipment and then bent at a bending angle of 65°. One end of the faucet body 1 is the water inlet end, which has an external thread structure, and the other end is the bent outlet end, which is an integral structure with the faucet body 1. A valve core mounting position is provided in the middle of the faucet body 1. The valve core mounting position is adapted to install a φ18mm universal ball valve core, and the ball valve core is connected to a control handle 2 for controlling the water flow.

[0053] The specific steps in the manufacturing process of this one-piece molded faucet are as follows: S1. Select 304 stainless steel round bar material and stamp it into faucet body blank through a 100-ton multi-station cold stamping equipment. The stamping pressure is controlled at 85MPa and the stamping speed is 6 times / minute. S2. The stamped blank is clamped onto a CK6140 CNC lathe for turning. The machining accuracy is controlled within ±0.05mm to ensure that the shape and hole size of the blank meet the design requirements. S3. Use a WC67Y-100 / 3200 bending machine to bend the machined parts at a bending angle of 65° to form a pre-set elbow outlet structure. S31. Using an XK7132 milling machine, a valve core mounting hole is machined in the middle of the faucet body. The φ18mm universal ball valve core is precisely assembled to the valve core mounting position and fixed with a buckle. The valve switch handle 2 is installed, and the valve core opening and closing performance is tested. S4. Because of the one-piece molding structure, there is no need for welding or screw-on connection processing, and the semi-finished product is obtained directly. S5. The semi-finished product is axially drawn using an MM2000 wire drawing machine, and then mirror polished using an MP300 polishing machine to achieve a surface roughness of Ra=0.6μm, thus obtaining the finished faucet.

[0054] Example 2: Cold-forged and bent quick-opening small faucet formed in parts: Please see Figure 2A quick-opening small faucet formed by cold heading and bending includes a faucet body 1, which comprises a first pipe section 3 and a second pipe section 4. Both the first pipe section 3 and the second pipe section 4 are formed by cold stamping from solid, one-piece 304 stainless steel round bars, with a wall thickness of 3.5mm. The second pipe section 4 is bent at a 65° angle and is fixedly connected to the first pipe section 3 by YAG laser welding. A rubber sealing gasket is provided at the joint. The free end of the first pipe section 3 is the water inlet end and has a quick-connect structure, while the free end of the second pipe section 4 is the water outlet end. The second pipe section 4 has a valve core mounting position, which is adapted to install a 20mm universal ball valve core. The ball valve core is connected to a control handle 2 for controlling the water flow.

[0055] The specific steps in the manufacturing process of this component-molded faucet are as follows: S1. Select 304 stainless steel round bars and stamp them into first tube blanks and second tube blanks respectively using a 100-ton multi-station cold stamping equipment. The stamping pressure is controlled at 80MPa and the stamping speed is 5 times / minute. S2. The two tube blanks are clamped onto the CK6140 CNC lathe for turning. The machining accuracy is controlled within ±0.05mm to ensure the dimensional accuracy and fit of the tubes. S3. Use a WC67Y-100 / 3200 bending machine to bend the second pipe section at a bending angle of 65° to form the preset water outlet structure. S31. Use an XK7132 milling machine to machine valve core mounting holes on the second pipe section, accurately assemble the 20mm universal ball valve core to the valve core mounting position and fix it with bolts, install valve switch handle 2, and test the valve core opening and closing performance. S4. Place a rubber sealing gasket at the joint between the first and second pipe sections, and weld them using a YAG laser welding machine at a welding current of 220A and a welding speed of 4mm / s to fix the two pipe sections together and obtain a semi-finished product. S5. The semi-finished product is axially drawn using an MM2000 wire drawing machine, and then mirror polished using an MP300 polishing machine to achieve a surface roughness of Ra=0.6μm, thus obtaining the finished faucet.

[0056] The quick-opening small faucets produced in the above two embodiments have a material utilization rate of 88% and a production yield of 92% after testing. The energy consumption per unit product is lower than that of the traditional casting process, and pollutant emissions are reduced. The products meet the requirements of GB / T18145-2014 "Ceramic Disc Faucets" standard. They have been tested in a 0.8MPa high-pressure water environment and a -10℃ low-temperature environment without cracking or leakage, and their service life can reach more than 10 years.

[0057] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0058] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0059] Furthermore, the described features or characteristics can be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented without the aforementioned specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A quick-opening small faucet formed by cold forging and bending, characterized in that, The faucet body is made of stainless steel material, which is stamped into a blank by cold stamping equipment and then bent into shape. One end of the faucet body is the water inlet and the other end is the bent water outlet.

2. The quick-opening small faucet formed by cold heading and bending according to claim 1, characterized in that, The stainless steel material is a solid, one-piece molded stainless steel bar.

3. A quick-opening small faucet formed by cold heading and bending according to claim 1, characterized in that, The water outlet is a bent structure that is integrated with the main body of the faucet. The bending angle of the main body of the faucet is 60°-70°.

4. A quick-opening small faucet formed by cold heading and bending according to claim 1, characterized in that, The faucet body has a valve core mounting position, which is adapted to install a ball valve core. The ball valve core is connected to a control handle for controlling the flow of water.

5. A quick-opening small faucet formed by cold heading and bending, characterized in that, The faucet body includes a first pipe section and a second pipe section. Both the first and second pipe sections are made of stainless steel and are formed by cold stamping equipment. The second pipe section is bent and then fixedly connected to the first pipe section by welding or screwing. One end of the first pipe section is the water inlet end and one end of the second pipe section is the water outlet end.

6. A quick-opening small faucet formed by cold heading and bending according to claim 5, characterized in that, The stainless steel material is a solid, one-piece molded stainless steel bar, with the wall thickness of both the first and second tube sections being 3-4 mm.

7. A quick-opening small faucet formed by cold heading and bending according to claim 5, characterized in that, The bending angle of the second tube is 60°-70°, and a sealing structure is provided at the joint between the first tube and the second tube.

8. A quick-opening small faucet formed by cold heading and bending according to claim 5, characterized in that, The first or second pipe section is provided with a valve core mounting position, which is adapted to install a ball valve core. The ball valve core is connected to a control handle for controlling the flow of water.

9. A manufacturing process for a quick-opening small faucet formed by cold heading and bending, characterized in that, Includes the following steps: S1. Select stainless steel bars and stamp them into faucet body blanks or component blanks using cold stamping equipment. S2. The stamped blank is clamped onto a CNC lathe for turning, and the machining accuracy is controlled. S3. Bend the machined parts to form preset angles and dimensions; S4. Connect the parts that need to be welded or screwed together to obtain a semi-finished product; S5. Perform surface brushing and mirror polishing on the semi-finished product to obtain the finished faucet.

10. The manufacturing process of a quick-opening small faucet formed by cold heading and bending according to claim 9, characterized in that, Between steps S3 and S4, add step S31, using a milling machine to machine the valve core mounting hole, accurately assemble the valve core to the valve core mounting position and fix it, and install the valve switch handle.

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