Die-cutting mold

Abstract

This application relates to the field of mold technology and provides a die-cutting mold for die-cutting sheet metal. The die-cutting mold includes a lower mold base and an upper mold base. The lower mold base has a first set of blades, a second set of blades with first and third contour blades, and a third set of blades with second and fourth contour blades arranged sequentially along the sheet metal conveying path. The third and fourth contour blades are arranged adjacent to each other. The upper mold base has a fourth, fifth, and sixth set of blades. The fourth set of blades corresponds to the first set of blades, the fifth set of blades corresponds to the first and second contour blades, and the sixth set of blades corresponds to either the third or fourth contour blade. This die-cutting mold optimizes the arrangement of the blade sets on the upper and lower mold bases, reducing the two cutting points in traditional die-cutting molds to one cutting point. This facilitates die-cutting with different die spacings and enables common mold production of sheet metal of different lengths.

Description

Technical Field

[0001] This application relates to the field of mold equipment technology, and in particular to a die-cutting mold for die-cutting sheet metal. Background Technology

[0002] Vehicle side panels are limited by the styling gaps, have large dimensions, and complex shapes. Ordinary rectangular materials cannot meet the molding requirements, making molding difficult. There are certain requirements for the shape of the blank before drawing. Therefore, before drawing the side panels, it is usually necessary to design a die-cutting mold to trim the sheet into a blank of a specified shape to facilitate drawing.

[0003] Currently, traditional die-cutting dies in the industry typically require two steps to process the side panel blank, with two cutting points during the blanking process. Due to this structural design, the die pitch is fixed, making it impossible to meet the common mold production requirements for blanks of different lengths. Therefore, there is an urgent need to optimize the structure of die-cutting dies. Utility Model Content

[0004] In view of this, this application aims to provide a die-cutting mold to facilitate die-cutting with different pitches, thereby meeting the common mold production of blanks with different length dimensions.

[0005] To achieve the above objectives, the technical solution of this application is implemented as follows: A die-cutting mold for die-cutting sheet metal, the die-cutting mold comprising a lower mold base and an upper mold base arranged opposite to each other; The lower die base is provided with a first cutter group, a second cutter group and a third cutter group in sequence along the sheet material conveying path. The second cutter group has a first contour cutter block and a third contour cutter block. The third cutter group has a second contour cutter block and a fourth contour cutter block. The third contour cutter block and the fourth contour cutter block are arranged adjacent to each other. The upper mold base is provided with a fourth cutter group, a fifth cutter group and a sixth cutter group. The fourth cutter group is arranged corresponding to the first cutter group, the fifth cutter group is arranged corresponding to the first contour cutter block and the second contour cutter block, and the sixth cutter group is arranged corresponding to the third contour cutter block or the fourth contour cutter block.

[0006] Furthermore, the third cutter group is mounted on the lower die base via a floating mechanism, and the third cutter group can move along the height direction of the lower die base.

[0007] Furthermore, the floating mechanism includes a support plate and an elastic element connecting the support plate and the lower mold base; the third blade assembly is mounted on the support plate.

[0008] Furthermore, a guide structure is provided between the support plate and the lower mold base, the guide structure being used to guide the movement of the support plate in the height direction of the lower mold base; and / or, a limiting structure is provided between the support plate and the lower mold base, the limiting structure being used to constrain the extreme positions of the support plate in the height direction of the lower mold base.

[0009] Furthermore, the lower mold base is provided with a first material support frame and a second material support frame to support the sheet material, and both the first material support frame and the second material support frame can be raised and lowered along the height direction of the lower mold base.

[0010] Furthermore, both the first and fourth cutter groups include a first cutter block for die-cutting a first position on the sheet metal, and a second cutter block for die-cutting a second position connected to the first position; the positions of the first cutter block and the second cutter block are adjustable on the sheet metal conveying path.

[0011] Furthermore, the upper die base is provided with a pressing assembly, which is made of an elastic material; at least one of the fourth cutter group, the fifth cutter group and the sixth cutter group is provided with the pressing assembly on its side, which is used to press the sheet material during die cutting.

[0012] Furthermore, it also includes a scrap cutter assembly; the scrap cutter assembly includes a first scrap cutter block disposed on the upper mold base and a second scrap cutter block disposed on the lower mold base, the first scrap cutter block and the second scrap cutter block being correspondingly disposed.

[0013] Furthermore, the lower die base is provided with a support portion, which is located between the second and third cutter groups, and the support portion is used to receive the sheet material during the conveying process.

[0014] Furthermore, the lower mold base is provided with a driving part connected to the supporting part; the driving part can drive the supporting part to move in a direction orthogonal to the sheet material conveying path.

[0015] Compared with related technologies, this application has the following advantages: (1) The die-cutting mold described in this application optimizes the arrangement of the cutter groups on the upper and lower die bases, so that the first cutter group is set in correspondence with the fourth cutter group, the fifth cutter group is set in correspondence with the first contour cutter block in the second cutter group and the second contour cutter block in the third cutter group, and the sixth cutter group is set in correspondence with the third contour cutter block or the fourth contour cutter block. This structure reduces the two cutting points in the traditional die-cutting mold to one cutting point, which can reduce the die-cutting steps. At the same time, with different feeding speeds, it is also conducive to realizing different mold pitches, so as to meet the common mold production of side panel blanks of different lengths, improve economic efficiency, and have a good use effect.

[0016] (2) The third cutter group is set on the lower mold base through a floating mechanism, so that the third cutter group can move along the height direction of the lower mold base. This makes the third cutter group form an integral floating cutter structure, which can avoid the burr or debris defects caused by the height difference when separating the sheet material by traditional fixed cutting, reduce the risk of adverse effects on the quality of the sheet material and the quality of the parts, and improve the preparation accuracy and quality of the sheet material.

[0017] (3) The floating mechanism includes a support plate and an elastic element connecting the support plate and the lower die base. The support plate provides an installation position for the third cutter group. The elastic element is pressed down, causing the support plate to descend, which in turn causes the third cutter group to descend. This adjusts the flatness of the second contour cutter block and the first contour cutter block in the third cutter group, improving the die-cutting accuracy of the front and rear contours of two adjacent sheet metal parts. After the die-cutting of the front and rear contours is completed, as the upper die base continues to press down, the fourth contour cutter block moves downward relative to the third contour cutter block. This facilitates the cooperation between the sixth cutter group and the third contour cutter block to cut off the connecting part between two adjacent sheet metal parts. This structure is relatively simple and easy to design and implement, and it also facilitates the overall floating of the third cutter group.

[0018] (4) The guide structure set between the support plate and the lower die base can effectively guide the movement of the support plate in the height direction of the lower die base, avoid horizontal displacement of the support plate due to uneven force during the stamping process, ensure the relative position of the third cutter group, and thus help ensure the die-cutting accuracy of the sheet metal; the limiting structure set between the support plate and the lower die base can effectively constrain the extreme position of the support plate in the height direction of the lower die base. At the same time, the cooperation of the guide structure and the limiting structure provides a dual guarantee of accuracy and safe use for the movement of the floating mechanism, and can ensure the stability and reliability of the single-point cutting process.

[0019] (5) The first and second material support frames provided on the lower die base can provide better support for the conveyed sheet material. The first and second material support frames can be raised and lowered relative to the lower die base. In this way, when conveying the sheet material, the rising position of the first and second material support frames can provide stable support for the sheet material and facilitate the smooth conveying of the sheet material. When stamping the sheet material, the falling position of the first and second material support frames can effectively prevent the upper die base from damaging the first and second material support frames.

[0020] (6) The positions of the first and second cutting blocks on the sheet material conveying path are adjustable, so that the die-cutting mold can match the first and second positions on sheets of different lengths, thereby better meeting the common mold production of sheets of different lengths.

[0021] (7) The setting of the pressure assembly can better press the sheet material during die cutting, preventing the sheet material from shifting during the die cutting process and affecting the die cutting accuracy.

[0022] (8) The waste cutting knife set is designed to simultaneously cut the waste between the contours of adjacent plates during the die-cutting process of the side panel blank, which facilitates the smooth discharge of waste and subsequent processing, and ensures the continuous operation of the production line.

[0023] (9) The support part provided on the lower mold base can provide better support for the sheet material during the conveying process, and prevent the sheet material from sagging in some areas and affecting the smooth conveying of the sheet material.

[0024] (10) The drive unit can drive the support unit to move in a direction orthogonal to the sheet material conveying path, which can improve the flexibility of the support unit. When in use, the drive unit can be adjusted to a suitable position that matches the width of the sheet material. When not in use, the drive unit can be adjusted to a position away from the sheet material. At the same time, the support of the support unit can further improve the forming accuracy of the front and rear contours of the sheet material. Attached Figure Description

[0025] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the structure of the die-cutting mold described in the embodiments of this application; Figure 2 This is a first-view structural schematic diagram of the lower mold base described in an embodiment of this application; Figure 3 This is a structural schematic diagram of the lower mold base from a second perspective, as described in an embodiment of this application. Figure 4 This is a schematic diagram of the upper mold base as described in the embodiments of this application; Figure 5 This is a first-view structural schematic diagram of the third blade assembly described in an embodiment of this application; Figure 6 This is a schematic diagram of the third blade assembly from a second perspective, as described in an embodiment of this application. Figure 7 This is a structural schematic diagram of the third blade assembly from a third perspective, as described in an embodiment of this application. Figure 8 This is a schematic diagram of the guiding structure described in the embodiments of this application; Figure 9 This is a schematic diagram of the limiting structure described in the embodiments of this application; Figure 10 This is a schematic diagram of the support portion as described in the embodiments of this application; Figure 11 This is a schematic diagram illustrating the cooperative state of the sixth cutter group with the third and fourth contour cutter blocks as described in the embodiments of this application. Figure 12 This is a schematic diagram of the side panel blank die-cutting process described in the embodiments of this application; Explanation of reference numerals in the attached figures: 1. Lower mold base; 2. Upper mold base; 11. First cutter group; 12. Second cutter group; 13. Third cutter group; 14. Support plate; 15. First material support frame; 16. Second material support frame; 17. Support part; 18. Second waste material cutter block; 19. Connecting column; 101. Guide column; 102. Limiting block; 103. Limiting ring; 104. Elastic element; 111. First cutter block; 112. Second cutter block; 121. First contour cutter block; 122. Third contour cutter block; 131. Second contour cutter block; 132. Fourth contour cutter block; 141. Guide sleeve; 151. Roller assembly; 170. Drive unit; 171. Horizontal plate; 172. Vertical plate; 20. Pressing assembly; 21. Fourth cutter group; 22. Fifth cutter group; 23. Sixth cutter group; 24. First scrap cutter block. Detailed Implementation

[0026] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0028] Furthermore, it should be noted that in the description of this application, if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, these are based on the orientation or positional relationship shown in the accompanying 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 on this application. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.

[0030] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0032] An embodiment of the first aspect of this application provides a die-cutting mold for die-cutting sheet metal, which facilitates die-cutting with different pitches, thereby enabling common mold production of blanks of different lengths.

[0033] In related technologies, before the side panels of a vehicle are drawn, the sheet metal needs to be trimmed into blanks of a specified shape using a die-cutting mold to facilitate drawing. Currently, the die-cutting molds for transmissions typically require two steps to process the side panel blanks, and there are two cutting points during the blanking process.

[0034] For example, for models on the same platform but with different wheelbases, the side panel components need to be lengthened or shortened according to the overall body size due to differences in vehicle length and wheelbase dimensions. The side panel blanks also need to be lengthened or shortened accordingly. However, the structure of traditional die-cutting molds has a fixed distance between the two cutting points, i.e., the mold step distance. Each set of die-cutting molds is bound to a single vehicle model. For side panel blanks of different lengths, corresponding molds need to be developed, meaning that each length of side panel blank corresponds to a set of die-cutting molds, resulting in high mold development costs.

[0035] If side panel blanks of different sizes are concentrated on the same die-cutting mold, a die-cutting mold can be developed based on the largest side panel blank. New die cutters for the differing sizes can also be made, with pre-reserved installation positions. During on-site production, inserts are disassembled and reassembled to match the processing of side panel blanks of the required length. However, this method requires manual disassembly and reassembly of inserts for each production run of side panel blanks of different lengths, resulting in significant waste of human resources, delays in production, and low efficiency. Furthermore, the repeated disassembly and reassembly of the die cutters may affect the accuracy of the cutters, further leading to changes in the dimensions of the side panel blanks and affecting the final precision and quality of the parts. Additionally, for die-cutting side panel blanks of short-wheelbase vehicles, the concentrated arrangement of the cutters on the die-cutting mold will affect the overall strength of the die-cutting mold due to the screw holes for mounting the cutters.

[0036] Therefore, the structure of traditional die-cutting dies, due to the fixed die pitch, cannot meet the common mold production of blanks of different lengths. Thus, it is urgent to optimize the structure of die-cutting dies.

[0037] In view of this, in order to overcome the shortcomings of the related technology, the die-cutting mold in this embodiment combines... Figures 1 to 12 As shown, the overall design includes a lower mold base 1 and an upper mold base 2 arranged opposite to each other.

[0038] The lower die base 1 is provided with a first cutter group 11, a second cutter group 12 and a third cutter group 13 in sequence along the sheet material conveying path. The second cutter group 12 has a first contour cutter block 121 and a third contour cutter block 122, and the third cutter group 13 has a second contour cutter block 131 and a fourth contour cutter block 132. The third contour cutter block 122 and the fourth contour cutter block 132 are arranged adjacent to each other.

[0039] The upper mold base 2 is provided with a fourth cutter group 21, a fifth cutter group 22 and a sixth cutter group 23. The fourth cutter group 21 is set in correspondence with the first cutter group 11, the fifth cutter group 22 is set in correspondence with the first contour cutter block 121 and the second contour cutter block 131, and the sixth cutter group 23 is set in correspondence with the third contour cutter block 122 or the fourth contour cutter block 132.

[0040] Therefore, by optimizing the arrangement of the cutter groups on the upper and lower die bases, the first cutter group is set to correspond with the fourth cutter group, the fifth cutter group is set to correspond with the first contour cutter block in the second cutter group and the second contour cutter block in the third cutter group, and the sixth cutter group is set to correspond with either the third or fourth contour cutter block. This structural form reduces the two cutting points in the traditional die-cutting mold to one cutting point, which can reduce the number of die-cutting steps. At the same time, with different feeding speeds, it is also conducive to achieving different die pitches, thereby meeting the common mold production of side panel blanks of different lengths and improving economic efficiency.

[0041] Based on the above overview, for more details, please refer to... Figures 1 to 12 As shown, the die-cutting mold in this embodiment is generally connected to the sheet metal feeding mechanism. The sheet metal feeding mechanism provides driving force, allowing the sheet metal to be moved to the designated station on the die-cutting mold for stamping and blanking. The die-cutting mold in this embodiment can be used for die-cutting of side panel blanks, and can also be applied to die-cutting of door inner panels or other parts that require the production of irregular shapes. The following is a detailed description using the die-cutting of side panel blanks as an example.

[0042] In this embodiment, the die-cutting mold, in its overall structure, includes a lower die base 1 and an upper die base 2 arranged opposite to each other. The lower die base 1 is provided with a first cutter group 11, a second cutter group 12, and a third cutter group 13 sequentially along the sheet metal conveying path. The upper die base 2 is provided with a fourth cutter group 21, a fifth cutter group 22, and a sixth cutter group 23. The sheet metal conveying path is as follows... Figure 3and Figure 12 As shown by the arrow in the image.

[0043] The first cutter group 11 and the fourth cutter group 21 are correspondingly arranged and work together with the stamping sheet to form the doorway on the side panel blank. The fifth cutter group 22 is correspondingly engaged with the first contour cutter block 121 and the second contour cutter block 131 to form part of the front side contour and part of the rear side contour of two adjacent side panel blanks. The remaining part of the front side contour and the remaining part of the rear side contour are connected to form a connecting part. The sixth cutter group 23 is correspondingly engaged with the third contour cutter block 122 or the fourth contour cutter block 132 to cut off the connecting part.

[0044] At this point, a cutting point is formed at the location of the connecting part, and the connecting part is cut off by the corresponding engagement of the sixth cutter group 23 with the third contour cutter block 122, or by the corresponding engagement of the sixth cutter group 23 with the fourth contour cutter block 132. In this way, the die-cutting of the side panel blank can be completed in only one step. At the same time, different feeding speeds can be used to achieve different die pitches, thereby meeting the common mold production of side panel blanks of different lengths.

[0045] In some exemplary embodiments, the first cutter group 11 and the fourth cutter group 21 each include a first cutter block 111 and a second cutter block 112. The first cutter block 111 is used to die-cut a first position on the sheet metal, and the second cutter block 112 is used to die-cut a second position adjacent to the first position. The positions of the first cutter block 111 and the second cutter block 112 are adjustable on the sheet metal conveying path.

[0046] By setting the positions of the first and second cutting blocks on the sheet material conveying path to be adjustable, the die-cutting mold can be matched with the first and second positions on sheets of different lengths, thereby better meeting the common mold production needs of sheets of different lengths.

[0047] When applied to the die-cutting of side panel blanks, the first cutting block 111 is also the front opening cutting block, and the second cutting block 112 is also the rear opening cutting block. Specifically, the first cutting block group 11 includes a front opening cutting block and a rear opening cutting block, and correspondingly, the fourth cutting block group 21 also includes a front opening cutting block and a rear opening cutting block. For ease of distinction, the front opening cutting block and the rear opening cutting block in the first cutting block group 11 can be defined, for example, as the first front opening cutting block and the first rear opening cutting block, and the front opening cutting block and the rear opening cutting block in the fourth cutting block group 21 can be defined, for example, as the second front opening cutting block and the second rear opening cutting block. In specific implementation, the first front opening cutting block and the second front opening cutting block cooperate to form the front opening on the side panel blank. The first rear opening cutting block and the second rear opening cutting block cooperate to form the rear opening on the side panel blank.

[0048] Side panel blanks of different sizes have varying positions of the front and rear openings along the sheet material conveying direction. Traditionally, fixed die blocks require mold replacement to adjust the opening positions. However, in this embodiment, the positions of the front and rear opening die blocks are adjustable along the sheet material conveying path. This allows the die-cutting mold to match the positions of the front and rear openings on side panel outer panels of different lengths, thus better meeting the common mold production requirements for side panel blanks of different lengths.

[0049] In practice, the front and rear door opening cutter blocks can be driven by mechanisms such as electric sliding tables, allowing for direct position adjustment along the sheet metal conveying direction on the upper mold base 2 and lower mold base 1. This eliminates the need to change cutter sets or molds, enabling rapid adaptation to different side panel blank door opening design requirements and further enhancing the flexibility of common mold production.

[0050] As an example structure, a first linear drive device and a second linear drive device are respectively provided on the lower mold base 1. A first front opening cutter block is provided on a first mounting plate, and a first rear opening cutter block is provided on a second mounting plate. The first mounting plate is connected to the power output end of the first linear drive device, and the second mounting plate is connected to the power output end of the second linear drive device. Thus, driven by the first linear drive device, the first mounting plate moves along the sheet metal conveying path, and drives the first front opening cutter block to move along the sheet metal conveying path. Driven by the second linear drive device, the second mounting plate moves along the sheet metal conveying path, and drives the first rear opening cutter block to move along the sheet metal conveying path.

[0051] Similarly, the second front opening cutter block and the second rear opening cutter block on the upper mold base 2 can also adopt the same arrangement structure as the first front opening cutter block and the first rear opening cutter block in the lower mold base 1. That is, the mounting plate is driven to move by a linear drive device, and the second front opening cutter block and the second rear opening cutter block are respectively driven to move along the sheet material conveying path.

[0052] It is worth noting that the first and second linear drive devices, for example, employ an electric slide mechanism. Using an electric slide mechanism can facilitate the automation of side panel blank die-cutting and also better ensure the accuracy of the movement of the front and rear door opening cutter blocks, thereby effectively guaranteeing the accuracy of side panel blank die-cutting.

[0053] Combination Figure 2 and Figure 3As shown, in this embodiment, the second cutter group 12 has a first contour cutter block 121 and a third contour cutter block 122 in its overall structure. The first contour cutter block 121 is arranged on both sides of the third contour cutter block 122, and the first contour cutter blocks 121 and the third contour cutter blocks 122 on both sides are arranged along the front contour of the side panel blank. The third cutter group 13 has a second contour cutter block 131 and a fourth contour cutter block 132 in its overall structure. The second contour cutter block 131 is arranged on both sides of the fourth contour cutter block 132, and the second contour cutter blocks 131 and the fourth contour cutter blocks 132 on both sides are arranged along the rear contour of the side panel blank. At the same time, the third contour cutter block 122 and the fourth contour cutter block 132 are arranged adjacent to each other.

[0054] Reference Figure 4 and Figure 11 As shown, the fifth cutter group 22 is located on both sides of the sixth cutter group 23. Each side of the fifth cutter group 22 includes a fifth contour cutter block and a sixth contour cutter block, with the ends of the fifth and sixth contour cutter blocks connected as one unit near the sixth cutter group 23. As an exemplary structure, the sixth cutter group 23 may be located directly above the fourth contour cutter block 132. In this case, the sixth cutter group 23 corresponds and cooperates with the third contour cutter block 122 to cut off the connecting portion. Of course, it can be understood that the sixth cutter group 23 may also be located directly above the third contour cutter block 122. In this case, the sixth cutter group 23 corresponds and cooperates with the fourth contour cutter block 132 to cut off the connecting portion.

[0055] Depend on Figure 2 and Figure 3 and combined Figure 5 and Figure 9 As shown, in some exemplary embodiments, the third cutter group 13 is mounted on the lower die base 1 via a floating mechanism, and the third cutter group 13 is capable of moving along the height direction of the lower die base 1. The floating mechanism allows the third cutter group 13 to move along the height direction of the lower die base 1, thus transforming the entire third cutter group 13 into an integrated floating structure. This avoids burrs or debris defects caused by height differences during traditional fixed-block cutting and separating of sheet metal, reducing the risk of adverse effects on sheet metal quality and part quality, and improving the preparation accuracy and quality of the side panel blank.

[0056] In terms of specific structure, continue to refer to Figure 2 and Figure 3 and combined Figure 5 and Figure 9 As shown, in some exemplary embodiments, the aforementioned floating mechanism includes, for example, a support plate 14 and an elastic member 104 connecting the support plate 14 and the lower mold base 1. The aforementioned third cutter group 13 is specifically mounted on the support plate 14.

[0057] In practical implementation, in the initial state, under the action of the elastic element 104, the third cutter group 13 is at a height relative to the second cutter group 12, for example, about 3mm higher. When the upper die holder 2 moves downward and the sheet metal is pressed, the elastic element is forced to lower the support plate 14, which in turn lowers the third cutter group 13. This adjusts the flatness of the second contour cutter block 131 in the third cutter group 13 and the first contour cutter block 121 in the second cutter group 12, aligning the cutting edges of the second contour cutter block 131 and the first contour cutter block 121. This improves the die-cutting accuracy of part of the front contour and part of the rear contour.

[0058] Furthermore, after the die-cutting of the front and part of the rear contours of the installation section is completed, as the upper die holder 2 continues to press down, the fourth contour cutter block 132 moves downward relative to the third contour cutter block 122. This facilitates the cooperation between the sixth cutter group 23 and the third contour cutter block 122 to cut off the connecting part, ensuring the die-cutting accuracy of the connecting part and improving the die-cutting quality of the product. This structural form is relatively simple and easy to design and implement, and it also facilitates the overall floating of the third cutter group 13.

[0059] It should be noted that the aforementioned elastic element 104 may be, for example, a nitrogen spring, and there are multiple elastic elements arranged at intervals. In addition, when the upper mold base 2 rises away from the contact with the lower mold base 1, the support plate 14 rises to its initial position under the reset action of the elastic element 104.

[0060] Based on the bearing plate 14 and elastic element 104 provided on the lower mold base 1, combined with Figures 5 to 8 As shown, in some exemplary embodiments, a guide structure is also provided between the support plate 14 and the lower die base 1. The guide structure is used to guide the movement of the support plate 14 in the height direction of the lower die base 1. By using the provided guide structure, the movement of the support plate 14 in the height direction of the lower die base 1 can be better guided, avoiding horizontal displacement of the support plate 14 due to uneven force during the stamping process, ensuring the relative position of the third cutter group 13, and thus helping to ensure the die-cutting accuracy of the side panel blank.

[0061] In specific implementation, the guiding structure includes, for example, multiple guide posts 101 disposed on the lower mold base 1 and multiple guide sleeves 141 disposed on the support plate 14. The axial direction of each guide post 101 is aligned with the height direction of the lower mold base 1, and each guide post 101 is inserted into a corresponding guide sleeve 141, allowing each guide sleeve 141 to move along the axial direction of its corresponding guide post 101. Through the cooperation between the guide sleeves 141 and the guide posts 101, the support plate 14 can be effectively guided to move along the height direction of the lower mold base 1, while ensuring the relative position of the third cutter group 13.

[0062] In addition, by Figures 5 to 7 and combined Figure 9As shown, in some exemplary embodiments, a limiting structure is also provided between the support plate 14 and the lower mold base 1, which is used to constrain the extreme position of the support plate 14 in the height direction of the lower mold base 1.

[0063] The limit positions include an upper limit position and a lower limit position. At the upper limit position, the return of the elastic element prevents the support plate 14 from disengaging from the lower die holder 1 or the third cutter group 13 from being positioned too high, affecting the die-cutting quality of part of the front and rear contours, or hindering the cutting of the connecting parts. At the lower limit position, the excessive travel of the third cutter group 13 avoids affecting stamping efficiency.

[0064] For specific structural details, please refer to [link / reference]. Figures 5 to 7 ,as well as Figure 9 As shown, the limiting structure includes, for example, a limiting block 102 fixedly mounted on the lower mold base 1, a connecting post 19 mounted on the limiting block 102, and a limiting ring 103 sleeved on the end of the connecting post 19. The limiting ring 103 is sleeved on the connecting post 19 and passes through a mounting hole on the support plate 14. The connecting post 19 is screwed onto the limiting block 102, thereby constraining the support plate 14 to the connecting post 19 and allowing the support plate 14 to move axially along the connecting post 19. The upper end face of the limiting block 102 constitutes the lower limit position of the support plate 14, and the lower end face of the limiting ring 103 constitutes the upper limit position of the support plate 14.

[0065] In the above structure, the limiting structure can effectively constrain the extreme positions of the bearing plate 14 in the height direction of the lower mold base 1. Moreover, the combination of the guiding structure and the limiting structure provides both accuracy and safety assurance for the movement of the floating mechanism, and ensures the stability and reliability of the single-point cutting process.

[0066] Combination Figure 2 , Figure 5 and Figure 6 As shown, in some exemplary embodiments, the lower die base 1 is provided with a first material support frame 15 and a second material support frame 16 for supporting sheet metal. Both the first material support frame 15 and the second material support frame 16 can be raised and lowered along the height direction of the lower die base 1. In this structure, the arrangement of the first material support frame 15 and the second material support frame 16 can provide better support for the conveyed sheet metal. Furthermore, the first material support frame 15 and the second material support frame 16 can be raised and lowered relative to the lower die base 1. Thus, when conveying sheet metal, the raised position of the first material support frame 15 and the second material support frame 16 can provide stable support for the sheet metal and facilitate smooth conveying of the sheet metal. When stamping sheet metal, the lowered position of the first material support frame 15 and the second material support frame 16 can effectively prevent the upper die base 2 from damaging the first material support frame 15 and the second material support frame 16.

[0067] Furthermore, in specific implementation, for example, nitrogen springs, springs, and other elastic elements are set between the lower mold base 1 and the first material support 15, and between the lower mold base 1 and the second material support 16, so that the first material support 15 and the second material support 16 are both connected to the lower mold base 1 through elastic elements. In this way, during the process of the elastic elements being compressed or decompressed, the first material support 15 and the second material support can be raised and lowered along the height of the lower mold base 1.

[0068] In addition, the first material support frame 15 and the second material support frame 16 are also equipped with multiple sets of roller assemblies 151. The multiple sets of roller assemblies 151 are used to support the conveyed sheet material. In this way, the contact between the rollers and the sheet material can reduce the friction during the conveying process and ensure the smooth conveying of the sheet material.

[0069] Reference Figure 4 As shown, in some exemplary embodiments, for example, a pressure assembly 20 is provided on the upper die holder 2. This pressure assembly 20 is made of an elastic material, such as polyurethane or rubber. The pressure assembly 20 is provided on the side of at least one of the fourth cutter group 21, the fifth cutter group 22, and the sixth cutter group 23 on the upper die holder 2. The pressure assembly 20 is used to clamp the sheet metal during die cutting. By providing the pressure assembly 20, the sheet metal can be better clamped during die cutting, preventing the sheet metal from shifting during the die cutting process and affecting the die cutting accuracy.

[0070] Specifically, a pressing assembly 20 is provided on one side of the fourth cutter group 21, one side of the fifth cutter group 22, and one side of the sixth cutter group 23. This can further improve the pressing effect of the sheet metal, prevent the sheet metal from shifting during the die-cutting process, and improve the die-cutting accuracy of the door opening position and the front and rear contour positions.

[0071] Combination Figures 2 to 4 As shown, in some exemplary embodiments, the die-cutting mold, in addition to having a first set of cutters 11 to a sixth set of cutters 23, also includes, for example, a scrap cutter set. This scrap cutter set includes, for example, a first scrap cutter block 24 disposed on the upper die base 2 and a second scrap cutter block 18 disposed on the lower die base 1. The first scrap cutter block 24 and the second scrap cutter block 18 are correspondingly disposed and cooperate to cut the scrap formed between the front and rear contours.

[0072] At this time, the waste cutting tool set facilitates the simultaneous cutting of waste between the front and rear contours during the die-cutting of the side panel blank, which is conducive to the smooth discharge of waste and subsequent processing, and ensures the continuous operation of the production line.

[0073] Specifically, please refer to Figures 2 to 4As shown, the waste cutting tool group consists of multiple sets arranged at intervals in the waste area, and the first waste cutting tool 24 and the second waste cutting tool 18 are also arranged in multiple corresponding sets. This allows the waste between the front and rear contours to be divided into smaller volumes, which is more conducive to the smooth discharge of waste and subsequent processing.

[0074] Combination Figure 2 , Figure 3 and Figure 10 As shown, in some exemplary embodiments, the lower die base 1 is provided with a support portion 17, which is located between the second cutter group 12 and the third cutter group 13, and is used to receive the side panel blank during the conveying process. By providing the support portion 17 on the lower die base 1, the side panel blank during the conveying process can be well supported, preventing the side panel blank from sagging locally and affecting the smooth conveying of the side panel blank.

[0075] In terms of specific structure, it still combines Figure 2 , Figure 3 and Figure 10 As shown, in some exemplary embodiments, the support portion 17 includes, for example, a horizontal plate 171 and a vertical plate 172, which are integrally formed and L-shaped. The horizontal plate 171 is used to support the side panel blank during the conveying process, and the vertical plate 172 can, to a certain extent, limit the side panel blank.

[0076] Additionally, in some exemplary embodiments, reference is made to... Figure 10 As shown, for example, a drive unit 170 connected to the support part 17 is provided on the lower mold base 1. The drive unit 170 can drive the support part 17 to move along a direction orthogonal to the sheet metal conveying path. At this time, by using the drive unit 170 to drive the support part 17 to move along a direction orthogonal to the sheet metal conveying path, the flexibility of use of the support part 17 can be improved. When in use, it can be adjusted to a suitable position matching the width of the side panel blank by the drive unit 170. When not in use, it can be adjusted to a position away from the side panel blank by the drive unit 170. At the same time, by using the support of the support part 17, the forming accuracy of the front and rear contours of the side panel blank can be further improved.

[0077] In specific implementation, a drive unit 170 is provided on both sides of the lower mold base 1, and a support unit is provided at the power output end of each drive unit 170. The drive unit 170 is, for example, a linear module or a cylinder, and each support unit 17 can move in a direction orthogonal to the sheet material conveying direction under the drive of the corresponding drive unit 170, so that during the conveying of the side panel blank, the support unit 17 can move to a suitable position and support the side panel blank.

[0078] The die-cutting mold in this embodiment, when used in practice, should refer to... Figure 12 As shown, the sheet metal along Figure 3 The sheet metal is fed in the conveying direction described above. When the sheet metal is conveyed to the first station, the upper die base 2 moves downward, so that the pressing assembly 20 presses the sheet metal. The first cutter group 11 and the fourth cutter group 21 cooperate, and the fifth cutter group 22 cooperates with the first contour cutter block 121 and the second contour cutter block 131 to first die cut out the door opening on the side panel blank and part of the front side contour and part of the rear side contour of two adjacent side panel blanks, that is, contour A, contour B and contour C shown in the figure. At this time, in the two adjacent side panel blanks, the remaining part of the front side contour and the remaining part of the rear side contour are connected to form a connecting part.

[0079] Next, the upper die holder 2 continues to move downwards, and the sheet metal is pressed down by the pressure assembly 20 directly above the fourth contour cutter block 132, causing the sixth cutter group 23 to engage with the third contour cutter block 122 to cut off the connecting part. Then the sheet metal continues to be fed, and the side panel blank at the second station is completed and conveyed to the side panel blank storage area. The side panel blank at the first station moves to the second station, and the subsequent sheet metal is conveyed to the first station for die cutting. In this way, the continuous die cutting of the side panel blank is completed.

[0080] Moreover, by adjusting the conveying speed of the sheet metal and coordinating the position adjustment of the front door opening cutter block 111 and the rear door opening cutter block 112, different die pitches can be achieved, thereby meeting the common mold production of side panel blanks of different lengths, and having good die-cutting accuracy to ensure the die-cutting quality of the side panel blanks.

[0081] It is worth noting that, regarding the die-cutting mold of this embodiment, based on the above exemplary embodiments, in specific implementation, as a preferred embodiment, it is still made by... Figures 1 to 12 As shown, it may include, for example, a lower die base 1 and an upper die base 2 arranged opposite to each other. The lower die base 1 is provided with a first cutter group 11, a second cutter group 12 and a third cutter group 13 in sequence along the sheet metal conveying path, and the upper die base 2 is provided with a fourth cutter group 21, a fifth cutter group 22 and a sixth cutter group 23.

[0082] The second cutter group 12 includes a first contour cutter block 121 and a third contour cutter block 122, while the third cutter group 13 includes a second contour cutter block 131 and a fourth contour cutter block 132, with the third contour cutter block 122 and the fourth contour cutter block 132 arranged adjacent to each other. The fourth cutter group 21 corresponds to the first cutter group 11 and is used to stamp the sheet metal to form a doorway on the side panel blank. The fifth cutter group 22 corresponds to the first contour cutter block 121 and the second contour cutter block 131 and is used to form part of the front side contour and part of the rear side contour of two adjacent side panel blanks. The remaining part of the front side contour and the remaining part of the rear side contour are connected to form a connecting part. The sixth cutter group 23 corresponds to the third contour cutter block 122 or the fourth contour cutter block 132 and is used to cut off the connecting part.

[0083] The first cutter group 11 and the fourth cutter group 21 both include a front door opening cutter block for forming the front door opening on the side panel blank, and a rear door opening cutter block for forming the rear door opening on the side panel blank; the positions of the front door opening cutter block and the rear door opening cutter block are adjustable on the sheet material conveying path.

[0084] The upper die base 2 is provided with a pressing component 20, which is made of elastic material; at least one of the fourth cutter group 21, the fifth cutter group 22 and the sixth cutter group 23 is provided with a pressing component 20 on its side, which is used to press the sheet material during die cutting.

[0085] It also includes a scrap cutter assembly; the scrap cutter assembly includes a first scrap cutter block 24 disposed on the upper mold base 2 and a second scrap cutter block 18 disposed on the lower mold base 1. The first scrap cutter block 24 and the second scrap cutter block 18 cooperate with each other to cut the scrap formed between the front contour and the rear contour.

[0086] The third cutter assembly 13 is mounted on the lower die holder 1 via a floating mechanism and is capable of moving along the height direction of the lower die holder 1. Preferably, the floating mechanism includes a support plate 14 and an elastic element connecting the support plate 14 and the lower die holder 1; the third cutter assembly 13 is mounted on the support plate 14. Furthermore, a guide structure is provided between the support plate 14 and the lower die holder 1 to guide the movement of the support plate 14 along the height direction of the lower die holder 1. Simultaneously, a limiting structure is also provided between the support plate 14 and the lower die holder 1 to constrain the extreme positions of the support plate 14 along the height direction of the lower die holder 1.

[0087] The lower mold base 1 is provided with a first material support frame 15 and a second material support frame 16 for supporting the plate material. Both the first material support frame 15 and the second material support frame 16 can be raised and lowered along the height direction of the lower mold base 1.

[0088] The lower die base 1 is provided with a support portion 17, which is located between the second cutter group 12 and the third cutter group 13, and is used to receive the side panel blank during the conveying process. In a preferred embodiment, the lower die base 1 is provided with a drive portion 170 connected to the support portion 17, which can drive the support portion 17 to move along a direction orthogonal to the sheet material conveying path.

[0089] In the above preferred embodiments, the specific configuration and arrangement of the structure, floating mechanism, guiding structure, limiting structure, front and rear opening cutter block position adjustment structure, waste cutter group and support part of the first to sixth cutter groups can still be referred to the descriptions in the above exemplary embodiments. Furthermore, in this preferred embodiment, the beneficial effects brought about by the design of the structure, floating mechanism, guiding structure, limiting structure, front and rear opening cutter block position adjustment structure, waste cutter group and support part of the first to sixth cutter groups can also be referred to the descriptions in the above exemplary embodiments.

[0090] The above descriptions are merely some embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A die-cutting mold for die-cutting sheet metal, characterized in that: It includes a lower mold base (1) and an upper mold base (2) arranged opposite to each other; The lower die base (1) is provided with a first cutter group (11), a second cutter group (12) and a third cutter group (13) in sequence along the sheet material conveying path. The second cutter group (12) has a first contour cutter block (121) and a third contour cutter block (122). The third cutter group (13) has a second contour cutter block (131) and a fourth contour cutter block (132). The third contour cutter block (122) and the fourth contour cutter block (132) are arranged adjacent to each other. The upper mold base (2) is provided with a fourth cutter group (21), a fifth cutter group (22) and a sixth cutter group (23). The fourth cutter group (21) is corresponding to the first cutter group (11), the fifth cutter group (22) is corresponding to the first contour cutter block (121) and the second contour cutter block (131), and the sixth cutter group (23) is corresponding to the third contour cutter block (122) or the fourth contour cutter block (132).

2. The die-cutting mold according to claim 1, characterized in that: The third cutter group (13) is mounted on the lower mold base (1) via a floating mechanism, and the third cutter group (13) can move along the height direction of the lower mold base (1).

3. The die-cutting mold according to claim 2, characterized in that: The floating mechanism includes a support plate (14) and an elastic element (104) connecting the support plate (14) and the lower mold base (1). The third blade assembly (13) is mounted on the support plate (14).

4. The die-cutting mold according to claim 3, characterized in that: A guide structure is provided between the support plate (14) and the lower mold base (1), the guide structure being used to guide the movement of the support plate (14) in the height direction of the lower mold base (1); and / or, A limiting structure is provided between the bearing plate (14) and the lower mold base (1), and the limiting structure is used to constrain the bearing plate (14) at its extreme position in the height direction of the lower mold base (1).

5. The die-cutting mold according to claim 3, characterized in that: The lower mold base (1) is provided with a first material support frame (15) and a second material support frame (16) to support the plate material. Both the first material support frame (15) and the second material support frame (16) can be raised and lowered along the height direction of the lower mold base (1).

6. The die-cutting mold according to claim 1, characterized in that: The first blade group (11) and the fourth blade group (21) each include a first blade block (111) for die-cutting a first position on the sheet metal, and a second blade block (112) for die-cutting a second position adjacent to the first position. The positions of the first blade (111) and the second blade (112) on the sheet metal conveying path are adjustable.

7. The die-cutting mold according to claim 1, characterized in that: The upper mold base (2) is provided with a pressing assembly (20), which is made of elastic material; The pressing assembly (20) is provided on the side of at least one of the fourth cutter group (21), the fifth cutter group (22) and the sixth cutter group (23), the pressing assembly (20) being used to press the sheet material during die cutting.

8. The die-cutting mold according to claim 1, characterized in that: It also includes a scrap cutter set; The scrap cutter assembly includes a first scrap cutter block (24) disposed on the upper mold base (2) and a second scrap cutter block (18) disposed on the lower mold base (1), with the first scrap cutter block (24) and the second scrap cutter block (18) being disposed correspondingly.

9. The die-cutting mold according to any one of claims 1 to 8, characterized in that: The lower mold base (1) is provided with a support part (17), which is located between the second cutter group (12) and the third cutter group (13), and the support part (17) is used to receive the plate material during the conveying process.

10. The die-cutting mold according to claim 9, characterized in that: The lower mold base (1) is provided with a drive unit (170) connected to the support part (17). The drive unit (170) can drive the support unit (17) to move in a direction orthogonal to the sheet material conveying path.

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