Electromagnetic valve sealing plate core integrated stamping and drawing equipment, process and sealing plate core integrated structure

Abstract

This invention discloses an integrated stamping and drawing process for solenoid valve sealing plates and cores. By stamping and cutting the material strip, an integrated sealing plate and core product is formed, accelerating production efficiency, improving production quality, and reducing labor costs. This invention also discloses an integrated stamping and drawing equipment for solenoid valve sealing plates and cores, applying the integrated stamping and drawing process of the previous embodiment. This invention further discloses an integrated sealing plate and core structure, manufactured using the integrated stamping and drawing process of the first embodiment, eliminating the assembly steps of the sealing plate and core, saving assembly time, and significantly reducing production costs.

Description

Technical Field

[0001] This invention relates to the field of electromagnetic valve sealing plate core forming technology, and in particular to an integrated stamping and stretching equipment, process, and integrated structure of electromagnetic valve sealing plate core. Background Technology

[0002] In existing technology, the sealing plate and iron core of a solenoid valve are manufactured separately and then riveted or welded together. The sealing plate is formed by stamping and cutting, while the iron core (including the head and columnar part) is formed by turning on a lathe. However, the turned iron core has two main drawbacks: high production cost, high manufacturing difficulty, low yield rate, and poor concentricity. Therefore, to ensure the sealing performance of the iron core, an annular groove needs to be machined on the columnar part, and a sealing ring is placed in the annular groove during assembly. In addition, especially in household appliances, the overall volume of solenoid valves is small, and the size of their sealing plate and iron core is even smaller. Whenever technicians consider changing the iron core processing technology, stamping can cause the material plate to wrinkle and crack, so stamping is the first method they rule out. Summary of the Invention

[0003] According to an embodiment of the present invention, an integrated stamping and stretching process for an electromagnetic valve sealing plate core is provided, wherein the core includes a head and a columnar portion; the process includes the following steps:

[0004] S1: The strip is stamped and cut, and round plates are evenly stamped on the strip. The round plates are connected to both sides of the strip by connecting ribs.

[0005] S2: Press the circular plate upward to create a protrusion;

[0006] S3: Stretch the protrusion initially to make it cylindrical;

[0007] S4: Stretch the protrusion a second time to make the diameter of the protrusion smaller and the height greater;

[0008] S5: Repeat step S4 at least three times;

[0009] S6: Stretch and round the corners on both sides of the protrusion;

[0010] S7: Further stretch the fillet to reduce its radius;

[0011] S8: Repeat step S7 at least once;

[0012] S9: Maintain the diameter of the lower end of the protrusion, and rough-build the upper end of the protrusion to initially form the head and columnar part of the iron core;

[0013] S10: Maintain the diameter of the columnar part and perform precision shaping on the head;

[0014] S11: Repeat step S10 at least once;

[0015] S12: Reshaping of the columnar portion and head;

[0016] S13: Repeat S12 at least once to complete the shaping of the columnar part and the head;

[0017] S14: The circular plate is stamped and cut to make its shape consistent with that of the solenoid valve sealing plate.

[0018] According to another embodiment of the present invention, an integrated stamping and stretching equipment for solenoid valve sealing plate core is provided, which applies the integrated stamping and stretching process for solenoid valve sealing plate core of the first embodiment, comprising:

[0019] Belt conveyor fixture; a belt conveyor fixture is used to convey belt materials.

[0020] The first punching fixture is connected to the material conveyor fixture and is used to punch out round plates from the material conveyor.

[0021] The first stamping fixture and the first blanking fixture are arranged adjacent to each other and are used to stamp the round plate upward to form a protrusion.

[0022] The second stamping fixture is arranged adjacent to the first stamping fixture. The second stamping fixture is used to stamp the protrusion into a column shape.

[0023] The third stamping fixture is arranged adjacent to the second stamping fixture. The third stamping fixture is used to stamp the protrusion into the shape of an iron core.

[0024] The second blanking fixture and the third stamping fixture are arranged adjacent to each other. The third stamping fixture is used to blank the sealing plate size on the circular plate.

[0025] Furthermore, the second stamping fixture includes at least eight stamping stations.

[0026] Furthermore, the third stamping fixture includes at least one roughing station, at least two finishing stations, and at least one shaping station.

[0027] The integrated stamping and stretching equipment and process for the solenoid valve sealing plate core according to embodiments of the present invention adopts an integrated stamping manufacturing process, which has a high degree of automation, reduces processing and labor costs, greatly improves yield, and has high concentricity, which improves the performance of the solenoid valve. It also eliminates the need to slot the columnar part of the core, reducing the use of sealing rings.

[0028] According to another embodiment of the present invention, an integrated sealing plate and core structure is provided, which is manufactured by the integrated stamping and stretching process of the electromagnetic valve sealing plate and core of the first embodiment.

[0029] The integrated structure of the sealing plate and iron core according to the embodiments of the present invention eliminates the assembly process of the sealing plate and iron core, saves assembly time, and greatly reduces production costs.

[0030] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0031] Figure 1 This is a top view of the internal structure of the integrated stamping and stretching equipment for the electromagnetic valve sealing plate core according to an embodiment of the present invention.

[0032] Figure 2 for Figure 1 Enlarged view of point A;

[0033] Figure 3 This is a schematic cross-sectional view of the internal structure of the integrated stamping and stretching equipment for the solenoid valve sealing plate core according to an embodiment of the present invention.

[0034] Figure 4 This is a top view schematic diagram of the material strip during the processing according to an embodiment of the present invention;

[0035] Figure 5 This is a side view schematic diagram of the material strip during the processing according to an embodiment of the present invention;

[0036] Figure 6 for Figure 5 Enlarged view of point B;

[0037] Figure 7 This is a schematic diagram of the integrated sealing plate and iron core structure according to an embodiment of the present invention;

[0038] Figure 8 This is a schematic diagram of the structure after the sealing plate and the iron core are assembled together in the prior art. Detailed Implementation

[0039] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0040] First, the integrated stamping and stretching process of the solenoid valve sealing plate core according to the embodiments of the present invention will be described. This process is widely used in the field of solenoid valve sealing plate core forming technology.

[0041] like Figures 1-7 As shown, the integrated stamping and stretching process of the solenoid valve sealing plate core according to the first embodiment of the present invention includes the following steps: The core 1 comprises a head 11 and a columnar portion 12.

[0042] S1: Stamp and cut the strip 3, and uniformly stamp out round plates 4 on the strip 3. The round plates 4 are connected to both sides of the strip 3 by connecting ribs 5 to prevent adjacent round plates 4 from affecting each other during subsequent stamping.

[0043] S2: The circular plate 4 is punched upward to form a protrusion 41. At this time, the height of the protrusion 41 is relatively low and the width is relatively large (the specific size is designed according to the requirements). This is a preliminary stamping and stretching.

[0044] S3: Stretch the protrusion 41 for the first time to make the protrusion 41 columnar. At this time, the columnar diameter is large and the height is low.

[0045] S4: Stretch the protrusion 41 a second time to make the diameter of the protrusion 41 smaller and the height greater;

[0046] S5: Repeat step S4 at least three times;

[0047] Steps S2 to S5 involve gradually stamping and stretching the circular plate 4, which allows for uniform deformation without breakage.

[0048] S6: Stretch and round the corners on both sides of the protrusion 41;

[0049] S7: Further stretch the fillet to reduce its radius;

[0050] S8: Repeat step S7 at least once;

[0051] From steps S6 to S8, the chamfer at the contact point between the protrusion 41 and the circular plate 4 is corrected and shaped.

[0052] S9: Maintain the lower diameter of the protrusion 41, and rough-build the upper end of the protrusion 41 to initially form the head 11 and columnar part 12 of the iron core 1;

[0053] S10: Maintain the diameter of the columnar part 12 and perform precision abutmentation on the head 11;

[0054] S11: Repeat step S10 at least once;

[0055] From steps S9 to S11, the head 11 of the iron core 1 is formed;

[0056] S12: Shape the columnar portion 12 and the head 11;

[0057] S13: Repeat S12 at least once to complete the shaping of columnar part 12 and head 11;

[0058] From steps S12 to S13, the overall shaping of the iron core 1 is completed;

[0059] S14: The circular plate 4 is stamped and cut to make the shape of the circular plate 4 consistent with the shape of the solenoid valve sealing plate 2. At this time, the integrated sealing plate 2 and iron core 1 structure is completed.

[0060] The principles of steps S2 to S13 are explained below using a specific production process as an example:

[0061] The first step is to emboss the round plate 4 to prevent wrinkling and tearing;

[0062] The second step is to stretch the diameter to 19.9mm;

[0063] The third step is to stretch the tube to a diameter of 14.6mm;

[0064] The fourth step is to stretch the tube to a diameter of 11.4mm;

[0065] Step 5: Stretch the tube to a diameter of 9.1mm;

[0066] Step 6: Stretch the tube to a diameter of 7.95mm;

[0067] Step 7: Stretch the fillet at the end to R=2.0mm.

[0068] Step 8: Stretch the fillet at the end of the finishing step to R=1.0mm;

[0069] Step 9: Stretch the fillet at the end of the finishing step to R=0.5mm;

[0070] Step 10: Protect the shape of the thickest part of the block;

[0071] Step 11: Protect the head of the precision-machined abutment in shape 11.

[0072] Step 12: Protect the diameter of the precision abutment head, which has a shape and size of 11.

[0073] Step 13: Adjust the diameter of the cylindrical section and the height of the head (11).

[0074] Step fourteen: Take a flat photo.

[0075] Secondly, such as Figures 1-7 As shown, according to another embodiment of the present invention, an integrated stamping and stretching equipment for the core of a solenoid valve sealing plate is provided, which applies the integrated stamping and stretching process for the core of a solenoid valve sealing plate of the first embodiment, comprising:

[0076] A material conveyor fixture (prior art, not shown) is used to convey material belt 3;

[0077] First punching fixture 6 (existing technology) is connected to material conveyor fixture and is used to punch out round plates 4 from material conveyor 3;

[0078] The first stamping fixture 7 and the first blanking fixture 6 are arranged adjacent to each other and are used to stamp the round plate 4 upward to form a protrusion 41.

[0079] The second stamping fixture 8 is arranged adjacent to the first stamping fixture 7. The second stamping fixture 8 is used to stamp the protrusion 41 into a column shape.

[0080] The third stamping fixture 9 is arranged adjacent to the second stamping fixture 8. The third stamping fixture 9 is used to stamp the protrusion 41 into the shape of the iron core 1.

[0081] The second punching fixture 10 and the third stamping fixture 9 are arranged adjacent to each other. The third stamping fixture 9 is used to punch out the dimensions of the sealing plate 2 on the circular plate 4.

[0082] Furthermore, such as Figures 1-3 As shown, in this embodiment, the second stamping fixture 8 includes at least eight stamping stations (prior art) for gradually and uniformly forming the columnar protrusion 41.

[0083] Furthermore, such as Figure 1 , 3 As shown, in this embodiment, the third stamping fixture 9 includes at least one roughing station (prior art), at least two fine forming stations (prior art) and at least one shaping station (prior art), for shaping the head 11 of the core 1 and shaping the core 1 as a whole.

[0084] Above, refer to Figures 1-7 The invention describes an integrated stamping and stretching equipment and process for the solenoid valve sealing plate core according to an embodiment of the present invention. The process adopts an integrated stamping manufacturing process, which has a high degree of automation, reduces processing and labor costs, greatly improves yield, and has high concentricity, which improves the performance of the solenoid valve. It also eliminates the need to slot the columnar part of the core, reducing the use of sealing rings.

[0085] Secondly, such as Figure 7 As shown, according to another embodiment of the present invention, an integrated sealing plate and core structure is provided, which is manufactured by the integrated stamping and stretching process of the electromagnetic valve sealing plate and core of the first embodiment.

[0086] Above, refer to Figure 7 The invention describes an integrated structure of the sealing plate and iron core according to an embodiment of the invention, which eliminates the assembly steps of the sealing plate and iron core, saves assembly time, and greatly reduces production costs.

[0087] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes that element.

[0088] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A stamping and stretching process for an integrated solenoid valve sealing plate core, the core comprising a head and a columnar portion; characterized in that, Includes the following steps: S1: The strip is stamped and cut, and round plates are evenly stamped on the strip. The round plates are connected to both sides of the strip by connecting ribs. S2: Press the circular plate upward to create a protrusion; S3: The protrusion is initially stretched to make it cylindrical; S4: Stretch the protrusion a second time to make the diameter of the protrusion smaller and the height greater; S5: Repeat step S4 at least three times; S6: Stretch and round the corners on both sides of the protrusion; S7: Further stretch the fillet to reduce its radius; S8: Repeat step S7 at least once; S9: Maintaining the lower diameter of the protrusion, rough-hewn the upper end of the protrusion to initially form the head and columnar part of the iron core; S10: Maintaining the diameter of the columnar portion, precisely abut the head; S11: Repeat step S10 at least once; S12: Shape the columnar portion and the head; S13: Repeat S12 at least once to complete the shaping of the columnar portion and the head; S14: The circular plate is stamped and cut to make the shape of the circular plate consistent with the shape of the solenoid valve sealing plate.

2. A stamping and stretching equipment for an integrated solenoid valve sealing plate core, used to implement the integrated stamping and stretching process for the solenoid valve sealing plate core as described in claim 1, characterized in that, Include: A material conveyor fixture, used for conveying a material belt; The first punching fixture is connected to the material conveying fixture and is used to punch out the circular plates from the material strip. A first stamping fixture, which is arranged adjacent to a first blanking fixture, is used to stamp the circular plate upward to form the protrusion. The second stamping fixture is arranged adjacent to the first stamping fixture, and the second stamping fixture is used to stamp the protrusion into the column shape. The third stamping fixture is arranged adjacent to the second stamping fixture, and the third stamping fixture is used to stamp the protrusion into the shape of an iron core. The second blanking fixture and the third stamping fixture are arranged adjacent to each other. The third stamping fixture is used to blank the sealing plate size on the circular plate.

3. The integrated stamping and stretching equipment for the solenoid valve sealing plate core as described in claim 2, characterized in that, The second stamping fixture includes at least eight stamping stations.

4. The integrated stamping and stretching equipment for the solenoid valve sealing plate core as described in claim 2, characterized in that, The third stamping fixture includes at least one roughing station, at least two finishing stations, and at least one shaping station.

5. A structure integrating a sealing plate and a core, characterized in that, It is manufactured using the integrated stamping and stretching process of the solenoid valve sealing plate core as described in claim 1.

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