Die for processing thick bright belt product
By designing molds for processing thick, glossy strip products and employing positioning stations, cutting stations, and anti-floating groove structures, the high-precision processing problem of electronic expansion valve parts for high-end vehicle models was solved, achieving high-precision control of glossiness and flatness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QING DAO JU XIANG JING MI MO JU YOU XIAN GONG SI
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-15
AI Technical Summary
Existing molds are unable to simultaneously meet the high-precision bright band and flatness requirements of electronic expansion valve components for high-end vehicles, especially since the shearing gap of the hollow structure is too small, making it difficult to mass-produce the parts.
A mold for processing thick, bright strip products was designed, comprising a positioning station, a first cutting station, a flattening station, a second cutting station, a deburring station, and a product unloading station. Through precise positioning, cutting, and leveling processes, combined with an anti-floating groove structure, high-precision processing of the products is ensured.
It achieves a bright band coverage of over 40% and a flatness control of less than 0.05mm, solving the problem of high-precision machining in traditional molds and ensuring stable product use.
Smart Images
Figure CN224238052U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of progressive die technology, specifically a die for processing thick, glossy strip products. Background Technology
[0002] In today's fiercely competitive market environment, the need for product process optimization and cost control is becoming increasingly urgent across industries. For example... Figures 1 to 3 The product shown is an electronic expansion valve component used in high-end vehicles. This product has stringent quality requirements for its molding structure, demanding a glossy finish of over 40% and a flatness control of less than 0.05mm to ensure stable performance in high-end vehicles. However, the central area of the product is hollowed out and has a special structure, making it prone to breakage during machining if the cutting gap is too small, hindering mass production. The difficulty in achieving flatness lies in the fact that, due to its shape and structure, flatness cannot be adjusted after the part is cut.
[0003] Existing mold technology cannot simultaneously meet the above high precision indicators. Developing a mold forming structure that meets this standard is the technical problem that this solution aims to solve. Utility Model Content
[0004] To address one of the shortcomings of existing technologies, this utility model provides a mold for processing thick, glossy ribbon products, solving the processing problem of planar structure products with high requirements for glossiness and flatness.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a mold for processing thick, bright strip products, comprising an upper mold and a lower mold, a conveying system for conveying the material strip is provided between the upper mold and the lower mold, and several workstations are provided between the upper mold and the lower mold, characterized in that the conveying direction of the material strip during processing is taken as forward, and the workstations include:
[0006] The positioning station can cut the material strip to form a positioning structure on the material strip;
[0007] The first cutting station is located in front of the positioning station and can cut the outer contour of the product.
[0008] The leveling station, located in front of the first cutting station, can perform leveling treatment on the product;
[0009] The second cutting station, located in front of the flattening station, can cut the inner contour of the product.
[0010] At the product unloading station, the outer periphery of the product on the conveyor belt is pressed down to detach the product from the conveyor belt.
[0011] Preferably, it also includes:
[0012] The deburring station, located between the second cutting station and the next product station, can perform cutting processing on the internal contours of the product.
[0013] Preferably, each workstation can process two products in parallel at the corresponding position of the material strip.
[0014] Preferably, the upper die punch of the positioning station includes two round hole stamping structures. The upper die punch of the positioning station can open round holes on both sides of the material strip, and the round holes are located between two adjacent products in front and behind the material strip.
[0015] Preferably, the first cutting station can cut the circumferential circular structure of the product on the strip, and the first cutting station is a half-cut top-back structure.
[0016] Preferably, the clearance between the lower die and the upper die punch of the first cutting station is 0.005 mm on each side.
[0017] Preferably, the lower die insert of the first cutting station is provided with a groove corresponding to the product, and the bottom of the groove is an arc-shaped structure with a high center and a low periphery.
[0018] The lower mold insert has a 0.9-degree inclined structure on its peripheral wall, with the side facing the upper mold being the large opening side.
[0019] Preferably, the lower die insert of the second cutting station is provided with an anti-floating groove, the depth of which is greater than or equal to 0.01 mm.
[0020] Preferably, there are two product unloading stations, each of which stamps one of the two products side by side on the strip.
[0021] Preferably, the upper mold includes an upper mold base, an upper mold pad, an upper clamping plate, a stripper pad, and a stripper plate arranged sequentially from top to bottom;
[0022] The lower mold includes a lower mold base, a lower mold pad, and a lower template arranged sequentially from bottom to top.
[0023] Compared with existing technologies, this solution has the following advantages: This solution focuses on the problem of controlling the bright band and flatness of the cut surface of thick materials. It addresses the technical bottleneck of traditional molds in ensuring high precision when processing thick materials. Based on the specific size requirements of the product, it focuses on developing a new mold forming structure, which effectively solves the existing technical problems.
[0024] The positioning station in this solution can pre-form a positioning structure on the material strip, providing a precise benchmark for subsequent processing. In conjunction with the first cutting station, it performs semi-cutting and top-back cutting on the outer contour of the product. Subsequently, the flattening station flattens the product after the first cutting station, effectively controlling the flatness of the product and meeting the usage requirements.
[0025] The second cutting station in this solution, combined with the anti-floating groove, can precisely cut the inner contour of the product, avoiding the impact of material floating on accuracy during processing. It works in conjunction with the burr station to further improve the processing quality of the inner contour, ensuring that the bright band of the product reaches more than 40%. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the product structure according to an embodiment of this application;
[0027] Figure 2 This is a front view of the product according to an embodiment of this application;
[0028] Figure 3 This is a schematic diagram of the material strip processing state according to an embodiment of this application;
[0029] Figure 4 This is a schematic diagram of the deburring station processing status according to an embodiment of this application;
[0030] Figure 5 This is a schematic diagram of the processing status of the lower product workstation in an embodiment of this application;
[0031] Figure 6 This is a schematic diagram of the structure of the first cutting station according to an embodiment of this application;
[0032] Figure 7 for Figure 6 A magnified view of part A;
[0033] Figure 8 This is a schematic diagram of the structure of the second cutting station according to an embodiment of this application;
[0034] Figure 9 This is a schematic diagram of the mold opening state of a progressive mold according to an embodiment of this application;
[0035] Figure 10 This is a schematic diagram of the closed state of a continuous mold according to an embodiment of this application.
[0036] In the picture:
[0037] 100. Upper mold; 101. Upper mold base; 102. Upper mold backing plate; 103. Upper clamping plate; 104. Stripper plate; 105. Stripper plate;
[0038] 200. Lower mold; 201. Lower mold base; 202. Lower mold backing plate; 203. Lower template;
[0039] 300. Products;
[0040] 1. Positioning station; 2. First cutting station; 3. Flattening station; 4. Second cutting station; 5. Deburring station; 6. Unloading station. Detailed Implementation
[0041] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0042] This application provides the following technical solution:
[0043] A mold for processing thick, glossy ribbon products, used for processing Figure 1 and Figure 2 Product 300 is shown. This product is generally a circular plate with a circular outer contour and a hollow structure in the center. The hollow structure is approximately hexagonal, with each side rounded and each corner having a rounded recess. The mold parts in this design are made of tungsten-molybdenum high-speed tool steel, model SKH51. This steel possesses high hardness, high wear resistance, and good toughness. This design uses progressive die machining for this product; see [link to relevant documentation]. Figure 9 and Figure 10 The progressive die of this design includes an upper die 100 and a lower die 200. The upper die 100 includes, from top to bottom, an upper die base 101, an upper die pad 102, an upper clamping plate 103, a stripper pad 104, and a stripper plate 105. The lower die 200 includes, from bottom to top, a lower die base 201, a lower die pad 202, and a lower die template 203. Conventional technical structures such as an inner guide post assembly and a floating guide assembly are also provided between the upper die 100 and the lower die 200, which will not be elaborated here. A conveyor system for conveying the material strip is provided between the upper die 100 and the lower die 200, and several workstations are located between them. This progressive die uses an 80T punch press with a punching speed of 80 strokes / minute, and the dimensional tolerance of the punch cutting edge is ±0.002mm.
[0044] For ease of explanation, the forward direction of the conveyor belt during product processing is taken as the "forward" direction. See [link / reference]. Figures 3 to 8 The workstations include, from back to front, a positioning workstation 1, a first cutting workstation 2, a flattening workstation 3, a second cutting workstation 4, a deburring workstation 5, and an unloading product workstation 6. Each workstation can process two products 300 side-by-side at the corresponding position of the material strip.
[0045] Positioning station 1 is used to form a positioning structure on the strip. The upper die punch of positioning station 1 includes two round hole stamping structures. The upper die punch of positioning station 1 can open round holes on both sides of the strip, and the round holes are located between two adjacent products 300 on the front and back of the strip. Guide pins are provided on the mold corresponding to the positioning holes. A first cutting station 2 is set on the front side of positioning station 1. The first cutting station 2 can cut the outer contour of product 300. Flattening station 3 is used to flatten the strip after processing by the first cutting station 2. Second cutting station 4 is used to cut the inner contour of product 300. Deburring station 5 can cut the inner contour of product 300 to remove burrs processed by second cutting station 4. Unloading station 6 presses down on the outer periphery of product 300 on the strip, causing product 300 to detach from the strip.
[0046] Based on the above implementation scheme, the first cutting station 2 can cut the circumferential circular structure of product 300 on the strip, and the first cutting station 2 is a semi-cutting and top-returning structure. For example... Figure 6 and Figure 7 As shown, the lower die of the first cutting station 2 is equipped with a top return structure, and the clearance between the lower die and the upper die punch edge of the first cutting station 2 is 0.005mm on one side. The lower die insert of the first cutting station 2 is provided with a groove corresponding to product 300, and the bottom of the groove is an arc surface structure with a high center and low periphery; the peripheral wall of the lower die insert is provided with a 0.9-degree slope structure, and the side facing the upper die is the large opening side.
[0047] In the first cutting station 2, after the product is cut, the lower die insert uses a return structure to push the product back into the feed strip. At this time, the lower die insert adjusts the flatness of the product and holds the product on the feed strip for subsequent stations. The product's flatness requirement of less than 0.05mm can actually be achieved at 0.01mm, and the gloss band of its thick material actually reaches 40%. Conventional molds usually set a half-cut return station after the internal cutting edge is completed. This solution advances the half-cut return of the first cutting station 2 to before the internal cutting edge processing to meet the product size requirements.
[0048] Based on the above implementation scheme, the lower die insert of the second cutting station 4 is provided with an anti-floating groove, the depth of which is greater than or equal to 0.01mm. The anti-floating groove prevents the cut-off waste material from jumping out onto the lower die plate and causing product damage.
[0049] Based on the above implementation plan, see Figure 4 The shape of the upper die punch in deburring station 5 corresponds to the internal hollow structure of product 300, and its outline is slightly smaller than the internal hollow area of product 300. Through this structure, deburring of the internal area of product 300 is achieved.
[0050] Based on the above implementation scheme, two product unloading stations 6 are set up, and each product unloading station 6 stamps the periphery of one of the two parallel products 300 on the material strip. Figure 5 Taking the direction shown as an example, the first product unloading station 6 presses down on the lower part of the conveyor belt, causing it to detach from the conveyor belt. The second product unloading station 6 then presses down on the upper part of the product 300. The product unloading operation is completed in two steps to ensure the flatness and stability of the product and the conveyor belt, and to ensure the continuous execution of subsequent operations.
[0051] In the description of this application and its embodiments, it should be understood that the terms "top", "bottom", "height", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0052] In this application and its embodiments, unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0053] In this application and its embodiments, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0054] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.
[0055] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.
[0056] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.
Claims
1. A mold for processing thick, bright strip products, comprising an upper mold and a lower mold, a conveying system for conveying the material strip is provided between the upper mold and the lower mold, and a plurality of workstations are provided between the upper mold and the lower mold, characterized in that, Taking the conveying direction of the material strip during processing as the forward direction, the workstation includes: The positioning station can cut the material strip to form a positioning structure on the material strip; The first cutting station is located in front of the positioning station and can perform cutting processing on the outer contour of the product; The leveling station, located in front of the first cutting station, can perform leveling treatment on the product; The second cutting station, located in front of the flattening station, can cut the inner contour of the product. At the product unloading station, the outer periphery of the product on the conveyor belt is pressed down to detach the product from the conveyor belt.
2. The mold for processing thick, bright strip products as described in claim 1, characterized in that, Also includes: The deburring station, located between the second cutting station and the next product station, can perform cutting processing on the internal contours of the product.
3. The mold for processing thick, bright strip products as described in claim 1, characterized in that, Each workstation can process two products side-by-side at the corresponding position on the material strip.
4. The mold for processing thick, bright strip products as described in claim 1, characterized in that, The upper die punch of the positioning station includes two round hole stamping structures. The upper die punch of the positioning station can open round holes on both sides of the strip, and the round holes are located between two adjacent products in front and behind the strip.
5. The mold for processing thick, bright strip products as described in claim 1, characterized in that, The first cutting station can cut the circumferential circular structure of the product on the strip, and the first cutting station is a half-cut top-back structure.
6. The mold for processing thick, bright strip products as described in claim 5, characterized in that, The clearance between the lower die and the upper die punch of the first cutting station is 0.005 mm on each side.
7. The mold for processing thick, bright strip products as described in claim 6, characterized in that, The lower die insert of the first cutting station is provided with a groove corresponding to the product, and the bottom of the groove is an arc surface structure with a high center and a low periphery. The lower mold insert has a 0.9-degree inclined structure on its peripheral wall, with the side facing the upper mold being the large opening side.
8. The mold for processing thick, bright strip products as described in claim 2, characterized in that, The lower die insert of the second cutting station is provided with an anti-floating groove, the depth of which is greater than or equal to 0.01 mm.
9. The mold for processing thick, bright strip products as described in claim 2, characterized in that, There are two product unloading stations, and each product unloading station stamps one of the two products side by side on the material strip.
10. The mold for processing thick, bright strip products as described in claim 7, characterized in that, The upper mold includes, from top to bottom, an upper mold base, an upper mold pad, an upper clamping plate, a stripper pad, and a stripper plate; The lower mold includes a lower mold base, a lower mold pad, and a lower template arranged sequentially from bottom to top.